DE102018111281A1 - REAR BIKE CHAIN ASSEMBLY - Google Patents

Abstract

Rear bicycle sprocket assembly includes a plurality of sprockets and a sprocket carrier configured to support at least one of the plurality of sprockets. The plurality of sprockets include at least ten inner splines and a circumferentially extending non-splined portion. The at least ten inner splines are adapted for engagement with the sprocket support of the rear bicycle hub assembly. The at least ten inner splines extend in an axial direction with respect to a rotational center axis of the rear bicycle sprocket assembly, and are spaced from each other in a circumferential direction with respect to the rotational center axis. The circumferentially extending non-splined portion is arranged to be adjacent to the at least ten inner spline teeth in the axial direction and recessed from the at least ten inner spline teeth in a radial direction with respect to the rotational center axis.

Description

BACKGROUND OF THE INVENTION

CROSS-REFERENCE TO RELATED APPLICATIONS

The present application claims priority to US Patent Applications filed on May 30, 2017, with the application number US 15 / 608,924 and US 15 / 608,915 US Patent Application filed on Aug. 9, 2017 US 15 / 673,346 , filed on August 25, 2017 US patent applications US 15 / 686,177 and US 15 / 686,179 , filed on September 22, 2017 US patent applications US 15 / 712,388 and the US patent application US 15 / 712,407 filed December 22, 2017 US Patent Applications US 15 / 851,781 and US Patent Application 15 / 851,785 , US Patent Application filed Jan. 24, 2018 US 15 / 879,353 and US Patent Application filed April 27, 2018 US 15 / 964,078 , The content of these applications is incorporated herein by reference in its entirety.

FIELD OF THE INVENTION

The present invention relates to a rear bicycle sprocket assembly.

DISCUSSION OF THE BACKGROUND

Cycling is becoming an increasingly popular form of recreational activity as well as a means of transport. In addition, cycling has become a very popular competitive sport for amateurs and professionals. Whether the bicycle is used for leisure, transportation or competition, the bicycle industry is constantly improving the various components of the bicycle. One bicycle component that has been extensively revised is a sprocket.

SUMMARY OF THE INVENTION

According to a first aspect of the present invention, a rear bicycle sprocket assembly is adapted to be mounted on a sprocket carrier body of a rear bicycle hub assembly. The rear bicycle sprocket assembly includes a plurality of sprockets and a sprocket carrier configured to support at least one of the plurality of sprockets. The plurality of sprockets include at least ten inner splines and a circumferentially extending non-spline or spline-free portion. The at least ten inner splines are adapted for engagement with the sprocket support of the rear bicycle hub assembly. The at least ten inner splines extend in an axial direction with respect to a rotational center axis of the rear bicycle sprocket assembly, and are spaced from each other in a circumferential direction with respect to the rotational center axis. The circumferentially extending non-splined portion is disposed so as to be adjacent to the at least ten inner spline teeth in the axial direction and recessed from the at least ten inner spline teeth in a radial direction with respect to the rotational center axis.

With the rear bicycle sprocket assembly according to the first aspect, it is possible to save a weight of the rear bicycle sprocket assembly while maintaining or improving the durability of the rear bicycle sprocket assembly.

According to a second aspect of the present invention, the rear bicycle sprocket assembly according to the first aspect is arranged such that a total number of the at least ten inner splines equal to or greater than 20 is.

With the rear bicycle sprocket assembly according to the second aspect, it is possible to improve the manufacturing efficiency of the internal splines while maintaining or improving the durability of the rear bicycle sprocket assembly.

According to a third aspect of the present invention, the rear bicycle sprocket assembly according to the second aspect is arranged such that a total number of the at least ten inner splines is equal to or smaller than 25 is.

With the rear bicycle sprocket assembly according to the third aspect, it is possible to improve the manufacturing efficiency of the internal splines while maintaining or improving the durability of the rear bicycle sprocket assembly.

According to a fourth aspect of the present invention, the rear bicycle sprocket assembly according to the first aspect is arranged such that a total number of the at least ten inner splines is in the range of 22 to 24 lies.

With the rear bicycle sprocket assembly according to the fourth aspect, it is possible to improve the manufacturing efficiency of the internal splines while maintaining or improving the durability of the rear bicycle sprocket assembly.

According to a fifth aspect of the present invention, the rear bicycle sprocket assembly according to any one of the first to fourth aspects is arranged such that at least two inner splines of the at least ten inner splines are circumferentially formed in a first inner pitch. or pitch angle with respect to a rotational center axis of the rear Fahrradkettenradanordnung are arranged. The first inner pitch angle is in the range of 13 degrees to 17 degrees.

With the rear bicycle sprocket assembly according to the fifth aspect, it is possible to improve the manufacturing efficiency of the internal splines while maintaining or improving the durability of the rear bicycle sprocket assembly.

According to a sixth aspect of the present invention, the rear bicycle sprocket assembly according to the fifth aspect is arranged such that the first inner pitch angle is 15 degrees.

With the rear bicycle sprocket assembly according to the sixth aspect, it is possible to improve the manufacturing efficiency of the internal splines while maintaining or improving the durability of the rear bicycle sprocket assembly.

According to a seventh aspect of the present invention, the rear bicycle sprocket assembly of the fifth aspect is arranged such that at least two other inner splines of the at least ten inner splines are circumferentially arranged at a second inner pitch angle with respect to the rotational center axis. The second inner pitch angle is different from the first inner pitch angle.

With the rear bicycle sprocket assembly according to the seventh aspect, it is possible to easily attach the rear bicycle sprocket assembly to a bicycle hub assembly in a correct circumferential position.

According to an eighth aspect of the present invention, the rear bicycle sprocket assembly according to the seventh aspect is arranged such that the second inner pitch angle is in the range of 28 degrees to 32 degrees.

With the rear bicycle sprocket assembly according to the eighth aspect, it is possible to easily fix the rear bicycle sprocket assembly in a correct circumferential position on the bicycle hub assembly.

According to a ninth aspect of the present invention, the rear bicycle sprocket assembly according to the seventh aspect is arranged such that the second inner pitch angle is 30 degrees.

With the rear bicycle sprocket assembly according to the ninth aspect, it is possible to easily attach the rear bicycle sprocket assembly to the bicycle hub assembly in a correct circumferential position.

According to a tenth aspect of the present invention, the rear bicycle sprocket assembly according to any one of the seventh to ninth aspects is arranged such that the first inner pitch angle is half the second inner pitch angle.

With the rear bicycle sprocket assembly according to the tenth aspect, it is possible to easily fix the rear bicycle sprocket assembly in a correct circumferential position to the bicycle hub assembly.

According to an eleventh aspect of the present invention, the rear bicycle sprocket assembly according to any one of the first to tenth aspects is arranged such that the at least ten inner splines include a plurality of inner spline drive surfaces to receive a drive rotational force from the rear bicycle hub assembly during the pedaling operation. The plurality of internal spline drive surfaces each include a radially outermost edge, a radially innermost edge, and a radial length defined from the radially outermost edge to the radially innermost edge. The sum of the radial lengths ranges from 11 mm to 14 mm.

With the bicycle rear sprocket assembly according to the eleventh aspect, it is possible to increase the radial lengths of the plurality of internal spline driving surfaces. This improves the strength of the second sprocket while improving the manufacturing efficiency of the internal splines.

According to a twelfth aspect of the present invention, the rear bicycle sprocket assembly according to the eleventh aspect is arranged such that the sum of the radial lengths is in the range of 12 mm to 13 mm.

With the bicycle rear sprocket assembly according to the twelfth aspect, it is possible to increase the radial lengths of the plurality of internal spline driving surfaces. This improves the strength of the second sprocket while improving the manufacturing efficiency of the internal splines.

According to a thirteenth aspect of the present invention, the rear bicycle sprocket assembly according to any one of the first to twelfth aspects is arranged such that the circumferentially extending non-splined portion is arranged such that the at least ten inner splines extend in the axial direction through the circumferentially extending one non-splined section in at least ten first internal splines and at least ten second internal splines are divided.

With the rear bicycle sprocket assembly according to the thirteenth aspect, it is possible to save a weight of the rear bicycle sprocket assembly and to optimize a balance of torque transmission.

According to a fourteenth aspect of the present invention, the rear bicycle sprocket assembly according to the thirteenth aspect is arranged such that the plurality of first internal splines have a first axial length in the range of 4 mm to 5 mm.

With the rear bicycle sprocket assembly according to the fourteenth aspect, it is possible to save a weight of the rear bicycle sprocket assembly and to optimize the balance of torque transmission.

According to a fifteenth aspect of the present invention, the rear bicycle sprocket assembly according to the fourteenth aspect is arranged such that the plurality of second inner splines have a second axial length ranging from 4.5 mm to 5.5 mm.

With the rear bicycle sprocket assembly according to the fifteenth aspect, it is possible to save a weight of the rear bicycle sprocket assembly and to optimize the balance of torque transmission.

According to a sixteenth aspect of the present invention, the bicycle rear sprocket assembly according to any one of the first to fifteenth aspects is arranged such that the circumferentially extending non-spline or spline-free portions have an axial, non-spline-free length is defined in the axial direction. The axial non-splined length is in the range of 7 mm to 9 mm.

With the rear bicycle sprocket assembly according to the sixteenth aspect, it is possible to save a weight of the rear bicycle sprocket assembly and to optimize the balance of torque transmission.

According to a seventeenth aspect of the present invention, the rear bicycle sprocket assembly according to any one of the first to sixteenth aspects is arranged such that a sum of an axial length of the at least ten inner splines and an axial non-splined length of the circumferentially extending non-splined portion is in the range of 16 mm to 21 mm.

With the rear bicycle sprocket assembly according to the seventeenth aspect, it is possible to save a weight of the rear bicycle sprocket assembly and to optimize the balance of torque transmission.

According to an eighteenth aspect of the present invention, the rear bicycle sprocket assembly according to any one of the first to seventeenth aspects is arranged so that the circumferentially extending non-splined portion extends completely in the circumferential direction.

With the rear bicycle sprocket assembly according to the eighteenth aspect, it is possible to save a weight of the rear bicycle sprocket assembly.

According to a nineteenth aspect of the present invention, the rear bicycle sprocket assembly according to any one of the first to eighteenth aspects is arranged such that the sprocket carrier is made of a metallic material.

With the rear bicycle sprocket assembly according to the nineteenth aspect, it is possible to save a weight of the rear bicycle sprocket assembly.

According to a twentieth aspect of the present invention, the rear bicycle sprocket assembly according to the nineteenth aspect is arranged so that the metallic material comprises aluminum.

With the rear bicycle sprocket assembly according to the twentieth aspect, it is possible to save a weight of the rear bicycle sprocket assembly.

According to a twenty-first aspect of the present invention, a bicycle rear sprocket assembly includes a first sprocket member, a second sprocket member, and a sprocket carrier. The first sprocket member has a first maximum sprocket diameter and includes a first sprocket body and a plurality of first sprocket teeth extending radially outward from the first sprocket body of the rear bicycle sprocket assembly with respect to a rotational center axis. The second sprocket member has a second maximum sprocket diameter that is greater than the first maximum sprocket diameter. The second sprocket member includes a second sprocket body and a plurality of second sprocket teeth extending radially outward from the second sprocket body with respect to the rotational center axis. The sprocket carrier includes a plurality of sprocket mounting portions. At least two of the plurality of sprocket mounting sections have in each case one with respect to the rotational center axis radially extending surface and an axially extending surface. The at least two of the plurality of sprocket mounting portions are adjacent to each other in a radial direction with respect to the rotational center axis. The first sprocket element is attached to the second sprocket. The second sprocket member is fixed to a primary radially extending surface of a primary sprocket mounting portion of the plurality of sprocket mounting portions. The second sprocket member is disposed in an axial direction with respect to the rotational center axis between the first sprocket member and the primary radially extending surface of the primary sprocket mounting portion.

With the rear bicycle sprocket assembly according to the twenty-first aspect, it is possible to save a weight of the rear bicycle sprocket assembly.

According to a twenty-second aspect of the present invention, the rear bicycle sprocket assembly according to the twenty-first aspect is arranged so that the second sprocket member is fixed to the primary radially extending surface of the primary sprocket mounting portion with a first sprocket mounting member. The first sprocket member is fixed to the second sprocket member with the first sprocket mounting member.

With the rear bicycle sprocket assembly according to the twenty-second aspect, it is possible to further save a weight of the rear bicycle sprocket assembly.

According to a twenty-third aspect of the present invention, the rear bicycle sprocket assembly according to the twenty-first or twenty-second aspect further comprises a third sprocket member having a third maximum sprocket diameter larger than the second maximum sprocket diameter. The third sprocket member includes a third sprocket body and a plurality of third sprocket teeth extending radially outward from the third sprocket body with respect to the rotational center axis. The third sprocket member is attached to a secondary radially extending surface of a secondary sprocket mounting portion of the plurality of sprocket mounting portions.

With the rear bicycle sprocket assembly according to the twenty-third aspect, it is possible to further save a weight of the rear bicycle sprocket assembly.

According to a twenty-fourth aspect of the present invention, the rear bicycle sprocket assembly according to the twenty-third aspect is arranged so that the second sprocket member is fixed to the primary radially extending surface of the primary sprocket mounting portion with a first sprocket mounting member. The first sprocket member is fixed to the second sprocket member with the first sprocket mounting member. The third sprocket member is secured to the secondary radially extending surface of the secondary sprocket mounting portion with a second sprocket mounting member that is different from the first sprocket mounting member.

With the rear bicycle sprocket assembly according to the twenty-fourth aspect, it is possible to further save a weight of the rear bicycle sprocket assembly.

According to a twenty-fifth aspect of the present invention, the rear bicycle sprocket assembly according to any one of the twenty-first to twenty-fourth aspects further comprises a fourth sprocket member and a fifth sprocket member. The fourth sprocket member has a fourth maximum sprocket diameter that is greater than the second maximum sprocket diameter. The fourth sprocket member includes a fourth sprocket body and a plurality of fourth sprocket teeth extending radially outward from the fourth sprocket body with respect to the rotational center axis. The fifth sprocket member has a fifth maximum sprocket diameter greater than the fourth maximum sprocket diameter. The fifth sprocket member includes a fifth sprocket body and a plurality of fifth sprocket teeth extending radially outward from the fifth sprocket body with respect to the rotational center axis. The fourth sprocket element is attached to the fifth sprocket. The fifth sprocket member is attached to a tertiary radially extending surface of a tertiary sprocket mounting portion of the plurality of sprocket mounting portions.

With the rear bicycle sprocket assembly according to the twenty-fifth aspect, it is possible to save a weight of the rear bicycle sprocket assembly in a high gear range.

According to a twenty-sixth aspect of the present invention, the rear bicycle sprocket assembly according to the twenty-fifth aspect is arranged so that the fifth sprocket member having a third sprocket mounting member is fixed to the tertiary radially extending surface of the tertiary sprocket mounting portion. The fourth sprocket element is on the fifth sprocket element secured to the third sprocket mounting element.

With the rear bicycle sprocket assembly according to the twenty-sixth aspect, it is possible to save a weight of the rear bicycle sprocket assembly at a high gear range.

According to a twenty-seventh aspect of the present invention, the rear bicycle sprocket assembly according to the twenty-fifth aspect further comprises a third sprocket member having a third maximum sprocket diameter larger than the second maximum sprocket diameter. The third sprocket has a third sprocket body and a plurality of third sprocket teeth extending radially outward from the third sprocket body with respect to the rotational center axis. The third sprocket member is attached to a secondary radially extending surface of a secondary sprocket mounting portion of the plurality of sprocket mounting portions. The fourth maximum sprocket diameter of the fourth sprocket element is greater than the third maximum sprocket diameter.

With the rear bicycle sprocket assembly according to the twenty-seventh aspect, it is possible to save a weight of the rear bicycle sprocket assembly in a large gear range.

According to a twenty-eighth aspect of the present invention, the rear bicycle sprocket assembly according to the twenty-fifth or twenty-sixth aspect further comprises a sixth sprocket member having a sixth maximum sprocket diameter larger than the fifth maximum sprocket diameter. The sixth sprocket member includes a sixth sprocket body and a plurality of sixth sprocket teeth extending radially outward from the sixth sprocket body with respect to the rotational center axis. The sixth sprocket member is attached to a quaternary radially extending surface of a quaternary sprocket mounting portion of the plurality of sprocket mounting portions.

With the rear bicycle sprocket assembly according to the twenty-eighth aspect, it is possible to save a weight of the rear bicycle sprocket assembly.

list of figures

• 1 ist eine Seitenaufrissansicht einer hinteren Fahrradkettenradanordnung nach einer ersten Ausführungsform.
• 2 ist eine Querschnittsansicht der hinteren Fahrradkettenradanordnung entlang der Linie II-II von 1.
• 3 ist eine Seitenaufrissansicht eines Kettenrads der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 4 ist eine Seitenaufrissansicht eines Kettenrads der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 5 ist eine Seitenaufrissansicht eines Kettenrads der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 6 ist eine Seitenaufrissansicht eines Kettenrads der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 7 ist eine Seitenaufrissansicht eines Kettenrads der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 8 ist eine Seitenaufrissansicht eines Kettenrads der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 9 ist eine Seitenaufrissansicht eines Kettenrads der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 10 ist eine Seitenaufrissansicht eines Kettenrads der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 11 ist eine Seitenaufrissansicht eines Kettenrads der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 12 ist eine Seitenaufrissansicht eines Kettenrads der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 13 ist eine Seitenaufrissansicht eines Kettenrads der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 14 ist eine Seitenaufrissansicht eines Kettenrads der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 15 ist eine perspektivische Ansicht der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 16 ist eine perspektivische Ansicht eines Kettenradträgers der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 17 ist eine Seitenaufrissansicht des Kettenradträgers der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 18 ist eine Querschnittsansicht des Kettenradträgers der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 19 ist eine weitere Querschnittsansicht des Kettenradträgers der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 20 ist eine weitere Querschnittsansicht des Kettenradträgers der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 21 ist eine vergrößerte Teilquerschnittsansicht des Kettenradträgers der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 22 ist eine weitere Seitenaufrissansicht der in 1 dargestellten hinteren Fahrradkettenradanordnung.
• 23 ist eine Querschnittsansicht der hinteren Fahrradkettenradanordnung entlang der Linie XXIII-XXIII von 22.
• 24 ist eine weitere Seitenaufrissansicht des in 13 dargestellten Kettenrads.
• 25 eine weitere Seitenaufrissansicht des in 14 dargestellten Kettenrads.
• 26 ist eine Seitenaufrissansicht einer hinteren Fahrradkettenradanordnung nach einer zweiten Ausführungsform.
• 27 ist eine Teilseitenansicht der in 26 dargestellten hinteren Fahrradkettenradanordnung.
• 28 ist eine Querschnittsansicht der hinteren Fahrradkettenradanordnung entlang der Linie XXIV-XXIV von 27.
• 29 ist eine Querschnittsansicht einer hinteren Fahrradkettenradanordnung nach einer dritten Ausführungsform entlang der Linie XXIX-XXIX von 30.
• 30 ist eine Seitenaufrissansicht der in 29 dargestellten hinteren Fahrradkettenradanordnung.
• 31 ist eine Querschnittsansicht einer hinteren Fahrradkettenradanordnung nach einer Modifikation.

A more complete appreciation of the invention and many of the attendant advantages will be readily obtained as the same becomes better understood by reference to the following detailed description when considered in conjunction with the accompanying drawings.

• 1 FIG. 10 is a side elevational view of a bicycle rear sprocket assembly according to a first embodiment. FIG.
• 2 is a cross-sectional view of the rear bicycle sprocket assembly taken along the line II-II of 1 ,
• 3 is a side elevational view of a sprocket of the in 1 illustrated rear bicycle sprocket assembly.
• 4 is a side elevational view of a sprocket of the in 1 illustrated rear bicycle sprocket assembly.
• 5 is a side elevational view of a sprocket of the in 1 illustrated rear bicycle sprocket assembly.
• 6 is a side elevational view of a sprocket of the in 1 illustrated rear bicycle sprocket assembly.
• 7 is a side elevational view of a sprocket of the in 1 illustrated rear bicycle sprocket assembly.
• 8th is a side elevational view of a sprocket of the in 1 illustrated rear bicycle sprocket assembly.
• 9 is a side elevational view of a sprocket of the in 1 illustrated rear bicycle sprocket assembly.
• 10 is a side elevational view of a sprocket of the in 1 illustrated rear bicycle sprocket assembly.
• 11 is a side elevational view of a sprocket of the in 1 illustrated rear bicycle sprocket assembly.
• 12 is a side elevational view of a sprocket of the in 1 illustrated rear bicycle sprocket assembly.
• 13 is a side elevational view of a sprocket of the in 1 illustrated rear bicycle sprocket assembly.
• 14 is a side elevational view of a sprocket of the in 1 illustrated rear bicycle sprocket assembly.
• 15 is a perspective view of the in 1 illustrated rear bicycle sprocket assembly.
• 16 is a perspective view of a sprocket carrier in 1 illustrated rear bicycle sprocket assembly.
• 17 FIG. 11 is a side elevational view of the sprocket carrier of FIG 1 illustrated rear bicycle sprocket assembly.
• 18 is a cross-sectional view of the sprocket carrier of in 1 illustrated rear bicycle sprocket assembly.
• 19 is another cross-sectional view of the sprocket carrier in 1 illustrated rear bicycle sprocket assembly.
• 20 is another cross-sectional view of the sprocket carrier in 1 illustrated rear bicycle sprocket assembly.
• 21 FIG. 15 is an enlarged partial cross-sectional view of the sprocket carrier of FIG 1 illustrated rear bicycle sprocket assembly.
• 22 is another side elevational view of the in 1 illustrated rear bicycle sprocket assembly.
• 23 FIG. 12 is a cross-sectional view of the rear bicycle sprocket assembly taken along the line. FIG XXIII - XXIII from 22 ,
• 24 is another side elevation view of the in 13 illustrated sprocket.
• 25 another page elevation view of the in 14 illustrated sprocket.
• 26 FIG. 10 is a side elevational view of a bicycle rear sprocket assembly according to a second embodiment. FIG.
• 27 is a partial page view of the in 26 illustrated rear bicycle sprocket assembly.
• 28 FIG. 12 is a cross-sectional view of the rear bicycle sprocket assembly taken along the line. FIG XXIV - XXIV from 27 ,
• 29 FIG. 10 is a cross-sectional view of a bicycle rear sprocket assembly according to a third embodiment taken along the line. FIG XXIX - XXIX from 30 ,
• 30 is a side elevational view of the in 29 illustrated rear bicycle sprocket assembly.
• 31 FIG. 10 is a cross-sectional view of a bicycle rear sprocket assembly according to a modification. FIG.

DESCRIPTION OF THE EMBODIMENTS

The embodiment (s) will now be described with reference to the accompanying drawings, in which like reference characters designate corresponding or identical elements throughout the several drawings.

First embodiment

With initial reference to 1 has a rear bicycle sprocket assembly 10 according to a first embodiment, a plurality of sprockets SP on. The multiple sprockets SP include a first sprocket SP1 and a second sprocket SP2 , The multiple sprockets SP further comprise a third sprocket SP3 and a fourth sprocket SP4 , The multiple sprockets SP further comprise the fifth to twelfth sprockets SP5 to SP12 , In this embodiment, the first to twelfth sprockets SP1 to SP12 also as sprockets SP1 to SP12 be designated. The third sprocket SP3 can be any sprocket made from the multiple sprockets SP3 to SP12 is selected, except the sprocket SP1 and the sprocket SP2 , The fourth sprocket SP4 can be any sprocket made from the multiple sprockets SP3 to SP12 is selected, except the sprocket SP1 , the sprocket SP2 and a sprocket selected as the sprocket SP3.

The first sprocket SP1 can also act as a first sprocket SP1 be designated. The second sprocket SP2 can also act as a third sprocket SP2 be designated. The third sprocket SP3 can also act as a fourth sprocket SP3 be designated. The fourth sprocket SP4 Can also be used as a second sprocket SP4 be designated. The rear bicycle sprocket assembly 10 namely, includes the first sprocket SP1 , the second sprocket SP4 and the third sprocket SP2 , The rear bicycle sprocket assembly 10 further comprises the fourth sprocket SP3 , The first sprocket SP1 can also be called the sprocket SP1 be designated. The second sprocket SP4 can also be called the sprocket SP4 be designated. The third sprocket SP2 can also be called the sprocket SP2 be designated. The fourth sprocket SP3 can also be called the sprocket SP3 be designated. The total number of sprockets SP1 to SP12 is not limited to this embodiment.

As in 1 to see has the rear Fahrradkettenradanordnung 10 a rotational center axis A1 on. The rear bicycle sprocket assembly 10 is provided by a rear bicycle hub assembly H with respect to the one bicycle frame (not shown) about the rotational center axis A1 rotatably supported around. The rear bicycle sprocket assembly 10 is set up to attach to a sprocket support H2 ( 2 ) of the rear bicycle hub assembly H is appropriate. In this embodiment, the rear bicycle sprocket assembly 10 on the sprocket support body H2 the rear hub assembly H with a locking element H1 attached. The rear bicycle sprocket assembly 10 is set up with a bike chain C to be engaged during the pedal operation, a drive torque F1 between the bicycle chain C and the rear bicycle sprocket assembly 10 transferred to. The rear bicycle sprocket assembly 10 will be around during the pedal operation Central axis of rotation A1 around in a driving direction D11 turned. The driving direction of rotation D11 is along a circumferential direction D1 with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 Are defined. A reverse direction D12 is an opposite direction of the driving direction D11 and is along the circumferential direction D1 Are defined.

In this embodiment, the sprocket SP3 the largest sprocket in the rear bicycle sprocket assembly 10 , The twelfth sprocket SP12 is the smallest sprocket in the rear bicycle sprocket assembly 10 , The first sprocket SP1 has a maximum tooth bottom diameter TD1 on. The maximum tooth bottom diameter TD1 can also be considered as a first maximum tooth bottom diameter TD1 be designated. The first sprocket SP1 namely, has the first maximum tooth bottom diameter TD1 on. The second sprocket SP2 has an additional maximum tooth bottom diameter TD2 greater than the maximum tooth bottom diameter TD1 of the first sprocket SP1 is. The additional maximum tooth bottom diameter TD2 Can also be the third maximum tooth bottom diameter TD2 be designated. The third sprocket SP2 namely has the third maximum tooth bottom diameter TD2 larger than the first maximum tooth bottom diameter TD1 of the first sprocket SP1 is. The second sprocket SP4 has a second maximum tooth bottom diameter TD4 smaller than the first maximum tooth bottom diameter TD1 of the first sprocket SP1 is. The third sprocket SP3 has an additional maximum tooth bottom diameter TD3 greater than the maximum tooth bottom diameter TD1 of the first sprocket SP1 is. The sprockets SP5 to SP12 each have the fifth to twelfth maximum tooth bottom diameter TD5 to TD12 on.

The dimensional relationship between the sprockets SP1 to SP12 is not limited to this embodiment. For example, the additional maximum tooth bottom diameter TD2 equal to or less than the maximum tooth bottom diameter TD1 of the first sprocket SP1 be. The second maximum tooth bottom diameter TD4 may be equal to or greater than the first maximum tooth bottom diameter TD1 of the first sprocket SP1 be.

As in 2 to see is the first sprocket SP1 in an axial direction D2 with respect to the rotational center axis A1 between the second sprocket SP4 and the third sprocket SP2 arranged. The third sprocket SP2 is in the axial direction D2 between the first sprocket SP1 and the fourth sprocket SP3 arranged. The second sprocket SP2 is in the axial direction D2 with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 to the first sprocket SP1 adjacent, without another sprocket between the first sprocket SP1 and the second sprocket SP2 , The third sprocket SP3 is in the axial direction D2 with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 to the second sprocket SP2 adjacent, without another sprocket between the second sprocket SP2 and the third sprocket SP3 , The fourth sprocket SP4 is in the axial direction D2 with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 to the first sprocket SP1 adjacent, without another sprocket between the first sprocket SP1 and the fourth sprocket SP4 , The third sprocket SP3 , the second sprocket SP2 , the first sprocket SP1 , and the fourth to twelfth sprocket SP4 to SP12 are in this order in the axial direction D2 arranged.

In this embodiment, the sprockets are SP1 to SP12 separate elements. However, at least two of the sprockets can SP1 to SP12 be provided at least partially in one piece with each other. In particular, at least two of the sprockets SP1 to SP12 be provided integrally as a unitary, one-piece element. Alternatively, at least two of the sprockets SP1 to SP12 with at least one mechanical fastener, such as a rivet, or with an adhesive, diffusion bonding, and so on. The sprockets SP1 to SP12 are made of a metallic material. In this embodiment, the first sprocket SP1 made of titanium. The second sprocket SP2 is made of aluminum. The third sprocket SP3 is made of aluminum. The fourth sprocket SP4 is made of titanium. The materials of the first to twelfth sprockets SP1 to SP12 however, are not limited to this embodiment. At least one of the sprockets SP1 to SP12 may be made of another metallic material or a non-metallic material.

As in 3 to see includes the first sprocket SP1 a sprocket body SP1A and several sprocket teeth SP1B , The multiple sprocket teeth SP1B extend from the sprocket body SP1A with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 radially outward. A total number of teeth of the first sprocket SP1 (a total number of at least one sprocket tooth SP1B ) is 39th However, the total number of the plurality of sprocket teeth is SP1B of the first sprocket SP1 not limited to this embodiment.

The first sprocket SP1 includes several dental floors SP1C , The tooth bottom SP1C is between two adjacent sprocket teeth SP1B intended. The several tooth floors SP1C define a root circle RC1 with the maximum tooth bottom diameter TD1 , As used herein, the term "maximum tooth bottom diameter" is intended to be a diameter of a root circle defined by tooth bottoms when the shapes of all tooth floors are identical, or a diameter of a maximum root circle defined by at least one tooth bottom when tooth bottoms are present various forms are provided in a sprocket, so that a plurality of root circles are defined in the sprocket. The definition may apply to any sprocket in the first to twelfth sprockets SP1 to SP12 be applied.

The first sprocket SP1 can also act as a sixth sprocket element SP1 be designated. The sprocket body SP1A can also be used as the sixth sprocket body SP1A be designated. The sprocket tooth SP1B can also act as a sixth sprocket tooth SP1B be designated. Thus, the rear bicycle sprocket assembly includes 10 further, the sixth sprocket element SP1 , The sixth sprocket element SP1 includes the sixth sprocket body SP1A and the multiple sixth sprocket teeth SP1B extending from the sixth sprocket body SP1A with respect to the rotational center axis A1 extend radially outward. The sixth sprocket element SP1 has a sixth maximum sprocket diameter MD1 on. At least one of the first sprocket teeth SP1B defines the sixth maximum sprocket diameter MD1 ,

As in 4 to see includes the second sprocket SP2 a sprocket body SP2A and several sprocket teeth SP2B , The multiple sprocket teeth SP2B extend with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 from the sprocket body SP2A radially outward. A total number of teeth of the second sprocket SP2 (a total number of at least one sprocket tooth) SP2B ) 45 , However, the total number of the plurality of sprocket teeth is SP2B of the second sprocket SP2 not limited to this embodiment.

The second sprocket SP2 includes several dental floors SP2c , The tooth bottom SP2c is between two adjacent sprocket teeth SP2B intended. The several tooth floors SP2c define a root circle RC2 with the maximum tooth bottom diameter TD2 ,

As in 5 to see includes the third sprocket SP3 a sprocket body SP3A and several sprocket teeth SP3b , The multiple sprocket teeth SP3b extend from the sprocket body SP3A with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 radially outward. A total number of teeth of the third sprocket SP3 (a total number of at least one sprocket tooth SP3b ) 51 , However, the total number of the plurality of sprocket teeth is SP3b of the third sprocket SP3 not limited to this embodiment.

The third sprocket SP3 includes several dental floors SP3c , The tooth bottom SP3c is between two adjacent sprocket teeth SP3b intended. The several tooth floors SP3c define a root circle RC3 with the maximum tooth bottom diameter TD3 ,

As in 6 to see includes the fourth sprocket SP4 a sprocket body SP4A and several sprocket teeth SP4B , The multiple sprocket teeth SP4B extend from the sprocket body SP4A with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 radially outward. A total number of teeth of the fourth sprocket SP4 (a total number of at least one sprocket tooth SP4B ) 33 , However, the total number of the plurality of sprocket teeth is SP4B of the fourth sprocket SP4 not limited to this embodiment.

The fourth sprocket SP4 has several dental floors SP4C on. The tooth bottom SP4C is between two adjacent sprocket teeth SP4B intended. The several tooth floors SP4C define a root circle RC4 with the maximum tooth bottom diameter TD4 , The fourth sprocket SP4 can also act as a fifth sprocket element SP4 be designated. The sprocket body SP4A can also act as a fifth sprocket body SP4A be designated. The sprocket tooth SP4B can also act as a fifth sprocket tooth SP4B be designated. Thus, the rear bicycle sprocket assembly 10 Further, the fifth sprocket element SP4 on. The fifth sprocket element SP4 includes a fifth sprocket body SP4A and several fifth sprocket teeth SP4B related to the rotational center axis A1 from the fifth sprocket body SP4A extend radially outward. The fifth sprocket element SP4 has a fifth maximum sprocket diameter MD4 on. At least one of the fifth sprocket teeth SP4B defines the fifth maximum sprocket diameter MD4 , The sixth maximum sprocket diameter MD1 is greater than the fifth maximum sprocket diameter MD4 ,

As in 7 to see includes the fifth sprocket SP5 a sprocket body SP5A and several sprocket teeth SP5B , The multiple sprocket teeth SP5B extend with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 from the sprocket body SP5A radially outward. A total number of teeth of the fifth sprocket SP5 (a total number of at least one sprocket tooth SP5B ) is 28. The total number of multiple sprocket teeth SP5B of fifth sprocket SP5 however, is not limited to this embodiment.

The fifth sprocket SP5 includes several dental floors SP5C , The tooth bottom SP5C is between two adjacent sprocket teeth SP5B intended. The several tooth floors SP5C define a root circle RC5 with the maximum tooth bottom diameter TD5 , The fifth sprocket SP5 Can also be used as a fourth sprocket element SP5 be designated. The sprocket body SP5A can also act as a fourth sprocket body SP5A be designated. The sprocket tooth SP5B can also act as a fourth sprocket tooth SP5B be designated. Thus, the rear bicycle sprocket assembly 10 Further, the fourth sprocket element SP5 on. The fourth sprocket element SP5 includes the fourth sprocket body SP5A and the several fourth sprocket teeth SP5B extending from the fourth sprocket body SP5A with respect to the rotational center axis A1 extend radially outward. The fourth sprocket element SP5 has a fourth maximum sprocket diameter MD5 on. At least one of the fourth sprocket teeth SP5B defines the fourth maximum sprocket diameter MD5 , The fifth maximum sprocket diameter MD4 ( 6 ) is greater than the fourth maximum sprocket diameter MD5 ,

As in 8th to see includes the sixth sprocket SP6 a sprocket body SP6A and several sprocket teeth SP6B , The multiple sprocket teeth SP6B extend with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 from the sprocket body SP6A radially outward. A total number of teeth of the sixth sprocket SP6 (a total number of at least one sprocket tooth SP6B ) 24 , The total number of multiple sprocket teeth SP6B of the sixth sprocket SP6 however, is not limited to this embodiment.

The sixth sprocket SP6 includes several dental floors SP6C , The tooth bottom SP6C is between two adjacent sprocket teeth SP6B intended. The several tooth floors SP6C define a root circle RC6 with the maximum tooth bottom diameter TD6 , The sixth sprocket SP6 can also act as a third sprocket element SP6 be designated. The sprocket body SP6A can also act as a third sprocket body SP6A be designated. The sprocket tooth SP6B can also act as a third sprocket tooth SP6B be designated. Thus, the rear bicycle sprocket assembly 10 Further, the third sprocket element SP6 on. The third sprocket element SP6 includes the third sprocket body SP6A and the several third sprocket teeth SP6B related to the rotational center axis A1 from the third sprocket body SP6A extend radially outward. The third sprocket element SP6 has a third maximum sprocket diameter MD6 on. At least one of the third sprocket teeth SP6B defines the third maximum sprocket diameter MD6 , The fourth maximum sprocket diameter MD5 ( 7 ) of the fourth sprocket element SP5 is greater than the third maximum sprocket diameter MD6 ,

As in 9 to see includes the seventh sprocket SP7 a sprocket body SP7A and several sprocket teeth SP7B , The multiple sprocket teeth SP7B extend from the sprocket body SP7A with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 radially outward. A total number of teeth of the seventh sprocket SP7 (a total number of at least one sprocket tooth SP7B ). However, the total number of the plurality of sprocket teeth is SP7B of the seventh sprocket SP7 not limited to this embodiment.

The seventh sprocket SP7 includes several dental floors SP7C , The tooth bottom SP7C is between two adjacent sprocket teeth SP7B intended. The several tooth floors SP7C define a root circle RC7 with the maximum tooth bottom diameter TD7 , The seventh sprocket SP7 Can also be used as a second sprocket element SP7 be designated. The sprocket body SP7A can also act as a second sprocket body SP7A be designated. The sprocket tooth SP7B can also act as a second sprocket tooth SP7B be designated. Thus, the rear bicycle sprocket assembly 10 the second sprocket element SP7 on. The second sprocket element SP7 includes the second sprocket body SP7A and the multiple second sprocket teeth SP7B related to the rotational center axis A1 from the second sprocket body SP7A extend radially outward. The second sprocket element SP7 has a second maximum sprocket diameter MD7 on. At least one of the second sprocket teeth SP7B defines the second maximum sprocket diameter MD7 , The third maximum sprocket diameter MD6 ( 8th ) is greater than the second maximum sprocket diameter MD7 , The fourth maximum sprocket diameter MD5 ( 7 ) is greater than the second maximum sprocket diameter MD7 ,

As in 10 to see includes the eighth sprocket SP8 a sprocket body SP8A and several sprocket teeth SP8B , The multiple sprocket teeth SP8B extend with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 from the sprocket body SP8A radially outward. A total number of teeth of the eighth sprocket SP8 (a total number of at least one sprocket tooth SP8B ) 21 , However, the total number of the plurality of sprocket teeth is SP8B of the eighth sprocket SP8 not limited to this embodiment.

The eighth sprocket SP8 includes several dental floors SP8C , The tooth bottom SP8C is between two adjacent sprocket teeth SP8B intended. The several tooth floors SP8C define a foot circle RC8 with the maximum tooth bottom diameter TD8 , The eighth sprocket SP8 can also be used as a first sprocket element SP8 be designated. The sprocket body SP8A Can also be used as a first sprocket body SP8A be designated. The sprocket tooth SP8B can also act as a first sprocket tooth SP8B be designated. Thus, the rear bicycle sprocket assembly 10 the first sprocket element SP8 on. The first sprocket element SP8 includes the first sprocket body SP8A and the plurality of first sprocket teeth SP8B related to the rotational center axis A1 the rear bicycle sprocket assembly 10 from the first sprocket body SP8A extend radially outward. The first sprocket element SP8 has a first maximum sprocket diameter MD8 on. At least one of the first sprocket teeth SP8B defines the first maximum sprocket diameter MD8 , The second maximum sprocket diameter MD7 ( 9 ) is greater than the first maximum sprocket diameter MD8 ,

As in 11 to see includes the ninth sprocket SP9 a sprocket body SP9A and several sprocket teeth SP9B , The multiple sprocket teeth SP9B extend with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 from the sprocket body SP9A radially outward. A total number of teeth of the ninth sprocket SP9 (a total number of at least one sprocket tooth SP9B ) is 16. However, the total number of multiple sprocket teeth SP9B of the ninth sprocket SP9 not limited to this embodiment.

The ninth sprocket SP9 includes several dental floors SP9C , The tooth bottom SP9C is between two adjacent sprocket teeth SP9B intended. The several tooth floors SP9C define a root circle RC9 with the maximum tooth bottom diameter TD9 ,

As in 12 to see includes the tenth sprocket SP10 a sprocket body SP10A and several sprocket teeth SP10B , The multiple sprocket teeth SP10B extend with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 from the sprocket body SP10A radially outward. A total number of teeth of the tenth sprocket SP10 (a total number of at least one sprocket tooth SP10B ) 14 , However, the total number of the plurality of sprocket teeth is SP10B of the tenth sprocket SP10 not limited to this embodiment.

The tenth sprocket SP10 includes several dental floors SP10C , The tooth bottom SP10C is between two adjacent sprocket teeth SP10B intended. The several tooth floors SP10C define a root circle RC10 with the maximum tooth bottom diameter TD10 ,

As in 13 to see includes the eleventh sprocket SP11 a sprocket body SP11A and several sprocket teeth SP11B , The multiple sprocket teeth SP11B extend with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 from the sprocket body SP11A radially outward. A total number of teeth of the eleventh sprocket SP11 (a total number of at least one sprocket tooth SP11B ) 12 , However, the total number of the plurality of sprocket teeth is SP11B of the eleventh sprocket SP11 not limited to this embodiment.

The eleventh sprocket SP11 includes several dental floors SP11C , The tooth bottom SP11C is between two adjacent sprocket teeth SP11B intended. The several tooth floors SP11C define a root circle RC11 with the maximum tooth bottom diameter TD11 ,

As in 14 to see includes the twelfth sprocket SP12 a sprocket body SP12A and several sprocket teeth SP12B , The multiple sprocket teeth SP12B extend with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 from the sprocket body SP12A radially outward. A total number of teeth of the twelfth sprocket SP12 (a total number of at least one sprocket tooth SP12B ) 10 , The total number of multiple sprocket teeth SP12B of the twelfth sprocket SP12 however, is not limited to this embodiment.

The twelfth sprocket SP12 includes several dental floors SP12C , The tooth bottom SP12C is between two adjacent sprocket teeth SP12B intended. The several tooth floors SP12C define a root circle RC12 with the maximum tooth bottom diameter TD12 ,

As in 15 to see has the rear Fahrradkettenradanordnung 10 a sprocket carrier 12 on. The sprocket carrier 12 is an element separate from the multiple sprockets SP. As in 2 to see is the sprocket carrier 12 set up to at least one of the multiple sprockets SP to support. The sprockets SP1 and SP4 to SP8 are on the sprocket carrier 12 attached. In this embodiment, the sprocket carrier 12 made of aluminum. The sprocket carrier 12 can however, may also be made of a metallic material other than aluminum or a non-metallic material such as a fiber reinforced plastic.

As in 16 To see, includes the sprocket carrier 12 a plurality of sprocket mounting sections 14A to 14E , At least one of the plurality of sprocket mounting portions 14A to 14E has a radially extending surface 16 and an axially extending surface 18 on. At least two of the plurality of sprocket mounting portions 14A to 14E each have one with respect to the rotational center axis A1 radially extending surface 16 and an axially extending surface 18 on. The at least two of the plurality of sprocket attachment sections 14A to 14E are in a radial direction with respect to the rotational center axis A1 adjacent to each other. In this embodiment, the plurality of sprocket mounting portions 14A to 14E each the radially extending surface 16 and the axially extending surface 18 on. The sprocket attachment section 14A has the radially extending surface 16A and the axially extending surface 18A on. The sprocket attachment section 14B has the radially extending surface 16B and the axially extending surface 18B on. The sprocket attachment section 14C has the radially extending surface 16C and the axially extending surface 18C on. The sprocket attachment section 14D has the radially extending surface 16D and the axially extending surface 18D on. The sprocket attachment section 14E has the radially extending surface 16E and the axially extending surface 18E on. The sprocket attachment section 14E may also be considered a primary sprocket attachment section 14E be designated. The sprocket attachment section 14D can also be used as a secondary sprocket attachment section 14D be designated. The sprocket attachment section 14C may also be referred to as a tertiary sprocket attachment section 14C be designated. The sprocket attachment section 14B can also be used as a quaternary sprocket attachment section 14B be designated.

The radially extending surface 16A extends radially with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 , The axially extending surface 18A extends with respect to the rotational center axis A1 axially from the radially extending surface 16A , The radially extending surface 16B extends radially with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 , The axially extending surface 18B extends with respect to the rotational center axis A1 axially from the radially extending surface 16B , The radially extending surface 16C extends radially with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 , The axially extending surface 18C extends with respect to the rotational center axis A1 axially from the radially extending surface 16C , The radially extending surface 16D extends radially with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 , The axially extending surface 18D extends with respect to the rotational center axis A1 axially from the radially extending surface 16D , The radially extending surface 16E extends radially with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 , The axially extending surface 18E extends with respect to the rotational center axis A1 axially from the radially extending surface 16E ,

The radially extending surface 16A can also be considered a first radially extending surface 16A be designated. The axially extending surface 18A can also be considered a first axially extending surface 18A be designated. The radially extending surface 16B can also be considered a second radially extending surface 16B be designated. The axially extending surface 18B may also be considered a second axially extending surface 18B be designated. The radially extending surface 16E can also be considered a primary radially extending surface 16E be designated. The axially extending surface 18E can also be considered a primary axially extending surface 18E be designated. The radially extending surface 16D can also be considered a secondary radially extending surface 16D be designated. The axially extending surface 18D can also act as a secondary axially extending surface 18D be designated. The radially extending surface 16C can also be considered a tertiary radially extending surface 16C be designated. The axially extending surface 18C can also be considered a tertiary axially extending surface 18C be designated. The radially extending surface 16B can also be considered a quaternary radially extending surface 16B be designated. The axially extending surface 18B can also act as a quaternary axially extending surface 18B be designated. In this embodiment, the axially extending surface 18 perpendicular to the radially extending surface 16 and parallel to the rotational center axis A1 , The axially extending surface 18 however, with respect to at least one of the radially extending surface 16 and the rotational center axis A1 be inclined.

In other words, the sprocket carrier 12 a first peripheral sprocket mounting portion 19A and a second Umfangskettenradbefestigungsabschnitt 19B on. The first peripheral sprocket attachment portion 19A is at the multiple sprocket mounting arms 22 intended. The second peripheral sprocket attachment portion 19B is at the multiple sprocket mounting arms 22 provided and is with respect to the rotational center axis A1 from the first perimeter chain attachment section 19A arranged radially inwardly. The first peripheral sprocket attachment portion 19A is set up to the first sprocket SP1 to support. The second peripheral sprocket attachment portion 19B is set up to the second sprocket SP4 to support.

As in 17 The first circumferential sprocket mounting portion is shown in FIG 19A the first radially extending surface 16A and the first axially extending surface 18A , The first radially extending surface 16A extends radially with respect to the rotational center axis A1 , The first axially extending surface 18 ( 18A ) extends axially with respect to the rotational center axis A1 , In this embodiment, the first peripheral sprocket mounting portion 19A a plurality of first radially extending surfaces 16A and a plurality of first axially extending surfaces 18A on.

The second peripheral sprocket attachment portion 19B has the second radially extending surface 16B and the second axially extending surface 18B on. The second radially extending surface 16B extends radially with respect to the rotational center axis A1 , The second axially extending surface 18B extends axially with respect to the rotational center axis A1 , In this embodiment, the second peripheral sprocket mounting portion 19B a plurality of second radially extending surfaces 16B and a plurality of second axially extending surfaces 18B on.

As in 17 As shown, the plurality of sprocket attachment portions 14A to 14E in a radial direction with respect to the rotational center axis A1 offset from each other. The sprocket attachment section 14A is located radially outside the sprocket mounting section 14B , The sprocket attachment section 14B is located radially outside the sprocket mounting section 14C , The sprocket attachment section 14C is located radially outside the sprocket mounting section 14D , The sprocket attachment section 14D is located radially outside the sprocket mounting section 14E , The sprocket attachment sections 14A to 14E are along the sprocket mounting arm 22 arranged. The arrangement of the Kettenradbefestigungsabschnitte 14A to 14E is not limited to this embodiment.

As in 2 see, in this embodiment, the radially extending surface 16 substantially perpendicular to the rotational center axis A1 , The radially extending surface 16 However, with respect to the rotational center axis A1 be inclined. In this embodiment, the axially extending surface 18 substantially parallel to the rotational center axis A1 , The axially extending surface 18 However, with respect to the rotational center axis A1 be inclined. Furthermore, the axially extending surface 18 directly with the radially extending surface 16 connected. The axially extending surface 18 however, may be from the radially extending surface 16 be spaced.

As in 16 To see, includes the sprocket carrier 12 a central section 21 and a plurality of sprocket mounting arms 22 related to the rotational center axis A1 the rear bicycle sprocket assembly 10 from the central section 21 extend radially outward. The multiple sprocket attachment sections 14A to 14E are each on the sprocket mounting arms 22 intended. In this embodiment, the sprocket mounting portions 14A to 14E on the sprocket mounting arm 22 intended. The arrangement of the Kettenradbefestigungsabschnitte 14A to 14E however, is not limited to this embodiment.

The central section 21 of the sprocket carrier 12 has a hub engagement profile 24 on. In this embodiment, the sprocket carrier comprises 12 at least ten inner splines or inner splines ST for engagement with the sprocket support body H2 ( 2 ) of the rear bicycle hub assembly H are set up. The at least ten inner splines ST extend in the axial direction D2 with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 and are with respect to the rotational center axis A1 in the circumferential direction D1 spaced apart.

The sprocket carrier 12 includes a circumferentially extending non-splined portion NS (non-splined), which is arranged so that it is in the axial direction D2 to the at least ten internal wedge teeth ST is adjacent. As in 2 to see is the circumferentially extending non-splined section NS in the radial direction with respect to the rotational center axis A1 of the at least ten internal wedge teeth ST reset. The circumferentially extending non-splined portion NS is at least one vertex of the at least ten inner splines in the radial direction ST reset. In this embodiment, the circumferentially extending non-splined portion NS arranged so that the at least ten inner splines ST in the axial direction D2 in at least ten first internal splines 28 and at least ten second internal splines 31 by the circumferentially extending non-splined portion NS be divided. In other words, the hub engagement profile includes 24 a first hub internal spline 26 and a second hub internal spline 30 , The first hub internal spline 26 includes the at least ten first internal splines 28 , The second hub internal spline 30 includes the at least ten second internal splines 31 ,

As in 18 to see, extending in the circumferential direction not splined section NS completely in the circumferential direction D1 , However, the circumferentially extending non-splined portion NS may be at least partially in the circumferential direction D1 extend. The circumferentially extending non-splined portion NS can be intermittent in the circumferential direction D1 extend. The circumferentially extending non-splined portion NS includes an annular groove NS 1 ,

As in 19 and 20 To see in this embodiment is a total number of at least ten internal splines ST equal to or greater than 20 , The total number of at least ten inner splines ST is equal to or less than 25 The total number of at least ten inner splines ST is in the range of 22 to 24 , In this embodiment, the total number of the at least ten internal splines ST 23 , The total number of at least ten inner splines ST however, is not limited to this embodiment and the above ranges.

As in 19 to see is a total of at least ten first internal splines 28 equal to or greater than 20 , The total number of at least ten first internal splines 28 is equal to or less than 25 , The total number of at least ten first internal splines 28 is in the range of 22 to 24 , In this embodiment, the total number of the at least ten first internal splines 28 23 , The total number of at least ten first internal splines 28 however, is not limited to this embodiment and the above ranges.

As in 20 to see is a total of at least ten second internal splines 31 equal to or greater than 20 , The total number of at least ten second internal splines 31 is equal to or less than 25 , The total number of at least ten second internal splines 31 is in the range of 22 to 24 , The total number of at least ten second internal splines 31 is in this embodiment 23 , The total number of at least ten second internal splines 31 however, is not limited to this embodiment and the above ranges.

As in 19 and 20 At least two inner splines of the at least ten inner splines are visible ST in the circumferential direction in a first inner pitch or pitch angle PA21 with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 arranged. The first inner pitch angle PA21 ranges from 13 degrees to 17 degrees. The first inner pitch angle PA21 is 15 degrees in this embodiment. The first inner pitch angle PA21 however, it is not limited to this embodiment and the above range.

As in 19 and 20 At least two other internal splines of the at least ten internal splines are visible ST in the circumferential direction in a second inner pitch angle PA22 with respect to the rotational center axis A1 arranged. The second inner pitch angle PA22 differs from the first inner pitch angle PA21 , The second inner pitch angle PA22 is in the range of 28 degrees to 32 degrees. In this embodiment, the first inner pitch angle PA21 half of the second inner pitch angle PA22 , The second inner pitch angle PA22 is 30 degrees. The second inner pitch or pitch angle PA22 however, is not limited to this embodiment and the above ranges. The first inner pitch angle PA21 can equal the second inner pitch angle PA22 be.

As in 19 At least two inner splines of the at least ten first inner splines are visible 28 in the circumferential direction in the first inner pitch angle PA21 with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 arranged. At least two more internal splines of the first internal splines 28 are in the circumferential direction in the second inner pitch angle PA22 with respect to the rotational center axis A1 arranged.

As in 20 At least two inner splines of the at least ten second inner splines are visible 31 in the circumferential direction about the first inner pitch angle PA21 with respect to the rotational center axis A1 the rear bicycle sprocket assembly 10 arranged. At least two other internal splines of the at least ten second internal splines 31 are in the circumferential direction in the second inner pitch angle PA22 with respect to the rotational center axis A1 arranged.

As in 21 As can be seen, the at least ten internal splines ST include a plurality of internal spline drive surfaces ST1 to during the pedal operation the drive torque F1 from the rear bicycle hub assembly H. The multiple internal spline drive surfaces ST1 each comprise a radially outermost edge ST1A and a radially innermost edge ST1B , The multiple internal spline drive surfaces ST1 each comprise a radial length RL21 from the radially outermost edge ST1A up to the radially innermost edge ST1B is defined. The sum of the radial lengths RL21 ranges from 11 mm to 14 mm. The sum of the radial lengths RL21 ranges from 12 mm to 13 mm. In this embodiment, the sum of the radial lengths is 12.5 mm. The totality of the radial lengths RL21 however, is not limited to this embodiment and the above ranges.

The at least ten internal splines ST have an additional radial length RL22 on. The additional radial lengths RL22 are each of an internal spline base circle RC22 up to radially innermost ends ST3 at least ten internal splines ST Are defined. The sum of the additional radial lengths RL22 is in the range of 26 mm to 29 mm. The sum of the additional radial lengths RL22 is 27.6 mm in this embodiment. The sum of the additional radial lengths RL22 however, is not limited to this embodiment and the above ranges.

At least one of the at least ten inner splines ST is in relation to a reference line CL2 symmetrical in the circumferential direction. The reference line CL2 extends in a radial direction with respect to the rotational center axis A1 from the rotational center axis A1 up to a circumferential center P2 a radially innermost end ST3 at least one of the at least ten internal splines ST , At least one of the internal splines ST however, may have an asymmetrical shape with respect to the reference line CL2 exhibit.

The internal spline drive surface ST1 has a first inner spline or inner spline surface angle AG21 on. The first internal spline surface angle AG21 is between the internal spline drive surface ST1 and a first radial line L21 Are defined. The first radial line L21 extends from the rotational center axis A1 the rear bicycle sprocket assembly 10 up to the radially outermost edge ST1A the internal spline drive surface ST1 , The first inner pitch angle PA21 or the second inner pitch angle PA22 is between the first radial lines L21 Are defined.

The at least ten internal splines ST include an inner spline and inner spline non-drive surface ST2 , The internal spline non-drive surface ST2 includes a radially outermost edge ST2A and a radially innermost edge ST2B , The internal spline non-drive surface ST2 extends from the radially outermost edge ST2A up to the radially innermost edge ST2B , The internal spline non-drive surface ST2 has a second internal spline surface angle AG22 on. The second internal spline surface angle AG22 is between the internal spline non-drive surface ST2 and a second radial line L22 Are defined. The second radial line L22 extends from the rotational center axis A1 the rear bicycle sprocket assembly 10 up to the radially outermost edge ST2A the internal spline non-drive surface ST2 ,

In this embodiment, the second inner spline or inner spline surface angle is AG22 equal to the first inner spline and inner spline surface angle, respectively AG21 , The first internal spline surface angle AG21 however, may differ from the second internal spline surface angle AG22 differ.

The first internal spline surface angle AG21 is in the range of 0 degrees to 6 degrees. The second internal spline surface angle is in the range of 0 degrees to 6 degrees. In this embodiment, the first internal spline surface angle is AG21 5 degrees. The second internal spline surface angle AG22 is 5 degrees. However, the first internal spline surface angle is AG21 and the second internal spline surface angle AG22 not limited to this embodiment and the above ranges.

The at least ten internal splines ST each have maximum circumferential widths MW2 on. The at least ten first internal splines 28 each have the maximum circumferential widths MW2 on. The at least ten second internal splines 31 each have the maximum circumferential widths MW2 on. The maximum circumferential width MW2 is defined as a maximum width to one on the internal spline ST applied compressive force F3 (the first internal spline 28 or the second internal splines 31 ). The sum of the maximum circumferential widths of the at least ten inner splines ST (the first internal spline 28 or the second internal splines 31 ) can range from 46 mm to 49 mm. The sum of the maximum circumferential widths of the at least ten inner splines ST is 47.5 mm in this embodiment. The sum of the additional radial lengths RL22 however, is not limited to this embodiment and the above ranges.

As in 2 to see, have the multiple first internal splines 28 a first axial one length AL1 in the range of 4 mm to 5 mm. The first axial length AL1 is 4.45 mm in this embodiment. The first axial length AL1 however, it is not limited to this embodiment and the above range.

The several second internal splines 31 have a second axial length AL2 in the range of 4.5 mm to 5.5 mm. In this embodiment, the second axial length is AL2 5 mm. The second axial length AL2 is greater than the first axial length AL1 , The second axial length AL2 however, it is not limited to this embodiment and the above range. The second axial length AL2 may be equal to or less than the first axial length AL1 be.

The circumferentially extending non-splined portion NS has an axial, non-splined length AL3 on that in the axial direction D2 is defined. The axial non-splined length AL3 ranges from 7 mm to 9 mm. The axial non-splined length AL3 is 8 mm in this embodiment. The axial non-splined length AL3 is greater than the first axial length AL1 and the second axial length AL2 , However, the axial length is not splined AL3 not limited to this embodiment and the above range. The axial non-splined length AL3 may be equal to or less than at least one of the first axial length AL1 and the second axial length AL2 be.

A sum of an axial length AL4 at least ten internal splines ST and the axial non-splined length AL3 the circumferentially extending non-splined portion NS is in the range of 16 mm to 21 mm. The axial length AL4 is a sum of the first axial length AL1 and the second axial length AL2 , The sum of the axial length AL4 at least ten internal splines ST and the axial non-splined length AL3 the circumferentially extending non-splined portion NS is 17.45 mm in this embodiment. The axial length AL4 at least ten internal splines ST is greater than the axial non-splined length AL3 , The sum of the axial lengths AL4 and AL3 however, it is not limited to this embodiment and the above range. The axial length AL4 at least ten internal splines ST may be equal to or less than the axial non-splined length AL3 be.

The sprocket carrier 12 is made of a metallic material. In this embodiment, the metallic material comprises aluminum. The sprocket carrier 12 however, it may also be made of other materials, such as iron, titanium, non-metallic material (eg, fiber-reinforced plastic).

The at least ten first internal splines 28 are configured to engage with a plurality of outer spline teeth (not shown) of the rear bicycle hub assembly H ( 2 ) to be engaged. The at least ten second internal splines 31 are configured to mate with the plurality of outer splines (not shown) of the rear bicycle hub assembly H ( 2 ) are engaged. The second hub internal spline 30 is from the first hub internal spline 26 in the axial direction D2 spaced. The second hub internal spline 30 can with the first hub inner spline 26 be connected. The structure of the hub engagement profile 24 however, is not limited to this embodiment. The hub engagement profile 24 can from the central section 21 of the sprocket carrier 12 be omitted. The hub engagement profile 24 may be another structure instead of or in addition to the first and second hub inner splines 26 and 30 exhibit.

As in 22 to see includes the rear Fahrradkettenradanordnung 10 furthermore at least one fastening element 32 , In this embodiment, the rear bicycle sprocket assembly comprises 10 Furthermore, several fasteners 32 , The first sprocket SP1 is on the sprocket carrier 12 with the several fasteners 32 attached. The total number of fasteners 32 is in this embodiment 6 , The total number of fasteners 32 however, is not limited to this embodiment. The fastener 32 is preferably made of a metallic material such as iron or titanium. The fastener 32 can also be made of aluminum. However, this can be at least one fastener 32 be made of a non-metallic material. In this embodiment, the fastening element comprises 32 a rivet. The fastener 32 However, instead of the rivet or in addition to this another fastener, such. As an adhesive or diffusion bonding include.

The rear bicycle sprocket assembly 10 further comprises at least one fastening element 34 , The fastener 34 can also act as a fastener 34 be designated. The rear bicycle sprocket assembly 10 namely, includes at least one fastener 34 , In this embodiment, the rear bicycle sprocket assembly comprises 10 Furthermore, several fasteners 34 (several fasteners). The second sprocket SP2 is with the first sprocket SP1 over the several fasteners 34 (the multiple fasteners) connected. The third sprocket (the second sprocket) SP2 is set up to work with the first sprocket (the first sprocket) SP1 via the at least one fastening element (the at least one fastening element) 34 to be connected / to be.

The rear bicycle sprocket assembly 10 further comprises at least one additional fastening element 36 , The additional fastening element 36 Can also be used as an additional fastener 36 be designated. The rear bicycle sprocket assembly 10 namely, further comprises at least one additional fastening element 36 , In this embodiment, the rear bicycle sprocket assembly comprises 10 Furthermore, several additional fasteners (several additional fasteners) 36 , The third sprocket SP3 is with the second sprocket SP2 over the several additional fasteners 36 connected.

The rear bicycle sprocket assembly 10 further comprises at least one additional fastening element 38 , The fastener 32 Can also be used as a first fastener 32 be designated. The additional fastening element 38 Can also be used as a second fastener 38 be designated. The rear bicycle sprocket assembly 10 namely, at least comprises a first fastening element 32 and at least one second fastener 38 , In this embodiment, the rear bicycle sprocket assembly comprises 10 Furthermore, several additional fasteners 38 , The sprocket SP4 is with the sprocket carrier 12 over the several additional fasteners 38 connected. The fastener 38 Can also be used as a fourth sprocket fastener 38 be designated.

The rear bicycle sprocket assembly 10 further comprises at least one additional fastening element 40 , In this embodiment, the rear bicycle sprocket assembly comprises 10 Furthermore, several additional fasteners 40 , The sprocket SP5 is with the sprocket carrier 12 over the several additional fasteners 40 connected. The additional fastening element 40 Can also be used as a third sprocket fastener 40 be designated.

The rear bicycle sprocket assembly 10 further comprises at least one additional fastening element 42 , The additional fastening element 42 can also be used as a second sprocket fastener 42 be designated. In this embodiment, the rear bicycle sprocket assembly comprises 10 Furthermore, several additional fasteners 42 , The sprocket SP6 is with the sprocket carrier 12 over the several additional fasteners 42 connected.

The rear bicycle sprocket assembly 10 further comprises at least one additional fastening element 44 , The additional fastening element 44 can also be used as a first sprocket fastener 44 be designated. In this embodiment, the rear bicycle sprocket assembly comprises 10 Furthermore, several additional fasteners 44 , The sprocket SP7 is with the sprocket carrier 12 over the several additional fasteners 44 connected.

The total number of fasteners 34 is in this embodiment 6 , The total number of fasteners 34 however, is not limited to this embodiment. The fastener 34 is preferably made of a metallic material such as iron or titanium. The fastener 34 can also be made of aluminum. However, this can be at least one fastener 34 be made of a non-metallic material. In this embodiment, the fastening element comprises 34 a rivet. The fastener 34 However, instead of the rivet or in addition to this another fastener, such. As an adhesive or diffusion bonding include.

The total number of fasteners 36 is 6. The total number of fasteners 36 however, is not limited to this embodiment. The fastener 36 is preferably made of a metallic material such as iron or titanium. The fastener 36 can also be made of aluminum. However, this can be at least one fastener 36 be made of a non-metallic material. In this embodiment, the fastening element comprises 36 a rivet. The fastener 36 However, instead of the rivet or in addition to this another fastener, such. As an adhesive or diffusion bonding include.

The total number of additional fasteners 38 is 6 , The total number of additional fasteners 40 is 6 , The total number of additional fasteners 42 is 6 , The total number of additional fasteners 44 is 6 However, the total number of additional fasteners is not limited to this embodiment. The material of the additional fastener is the same as the material of the fastener 34 and or 36 , Therefore, for the sake of brevity, they will not be described in detail here.

As in 17 to see includes the sprocket attachment portion 14A a mounting hole 20A which is at the radially extending surface 16A is provided. The sprocket attachment section 14B includes a mounting hole 20B at the radially extending surface 16B is provided. The sprocket attachment section 14C includes a mounting hole 20C at the radially extending surface 16C is provided. The sprocket attachment section 14D includes a mounting hole 20D at the radially extending surface 16D is provided. The sprocket attachment section 14E includes a mounting hole 20E at the radially extending surface 16E is provided. As in 2 to see the fastener extends 32 through the mounting hole 20A therethrough. The additional fastening element 38 extends through the mounting hole 20B therethrough. The additional fastening element 40 extends through the mounting hole 20C therethrough. The additional fastening element 42 extends through the mounting hole 20D therethrough. The additional fastening element 44 extends through the mounting hole 20E therethrough.

As in 3 to see, points the first sprocket SP1 at least one circumferential connection point CP1 on. The perimeter connection point CP1 may also be considered a first perimeter connection point CP1 be designated. The first sprocket SP1 namely, has at least one first peripheral connection point CP1 on. In this embodiment, the at least one circumferential connection point comprises CP1 several perimeter connection points CP1 , The perimeter connection points CP1 are in the circumferential direction D1 spaced apart. The perimeter connection points CP1 are provided in the same radial position and are at a constant pitch in the circumferential direction D1 intended. A total number of perimeter connection points CP1 is 6 , The total number of perimeter connection points CP1 however, is not limited to this embodiment. The first sprocket SP1 includes several through holes SP1D , The perimeter connection point CP1 is in a middle of the through hole SP1D Are defined. As in 2 to see the fastener extends 32 through the through hole SP1D and the mounting hole 20A therethrough.

As in 22 to see is the first sprocket SP1 with the radially extending surface 16 ( 16 ) At least one of the plurality of Kettenradbefestigungsabschnitte 14A to 14E at the at least one circumferential connection point CP1 connected. In this embodiment, the first sprocket SP1 with the plurality of radially extending surfaces 16 ( 16 ) of the plurality of sprocket attachment portions 14A at the plurality of circumferential connection points CP1 connected. The first sprocket SP1 is with the radially extending surface 16 ( 16 ) of the at least one of the plurality of sprocket mounting portions 14A to 14E at the at least one circumferential connection point CP1 with the at least one fastening element 32 connected. The first sprocket SP1 is with the radially extending surface 16 the at least one of the plurality of sprocket mounting portions 14A to 14E at the plurality of circumferential connection points CP1 over the several fasteners 32 connected. In other words, the first sprocket SP1 is with the first Umfangseettenradbefestigungsabschnitt 19A at the at least one first circumferential connection point CP1 connected. The first sprocket SP1 is with the first Umfangseettenradbefestigungsabschnitt 19A at the at least one first circumferential connection point CP1 over the at least one first fastening element 32 connected. The perimeter connection point CP1 can through the fastener (the fastener) 32 be defined.

As in 4 to see, the second sprocket has SP2 at least one additional perimeter connection point CP2 on. The additional perimeter connection point CP2 can also act as a third peripheral connection point CP2 be designated. The third sprocket SP2 namely has at least a third peripheral connection point CP2 on. In this embodiment, the at least one additional circumferential connection point comprises CP2 several additional perimeter connection points (several third perimeter connection points) CP2 , The additional perimeter connection points CP2 are in the circumferential direction D1 spaced apart. The additional perimeter connection points CP2 are provided in the same radial position and are at a constant pitch in the circumferential direction D1 intended. A total number of additional perimeter connection points CP2 is 12 , The total number of additional perimeter connection points CP2 however, is not limited to this embodiment. The second sprocket SP2 includes several through holes SP2D , The additional perimeter connection point CP2 is in a middle of the through hole SP2D Are defined.

As in 3 to see includes the first sprocket SP1 several additional through holes SPIE. The additional perimeter connection point CP2 is defined in a center of the additional through-hole SPIE. The additional through holes SPIE of the first sprocket SP1 are provided at positions corresponding to the through holes SP2D ( 4 ) of the second sprocket SP2 correspond.

As in 23 to see includes the rear Fahrradkettenradanordnung 10 several spacers SC1 between the sprockets SP1 and SP2 in the axial direction D2 are provided. The spacer SC1 includes a spacer hole SC1A , The fastener 34 extends through the additional through hole SP1E , the through holes SP2D and the spacer hole SC1A therethrough. The spacer SC1 can be integral with the fastener 34 be formed as a single, one-piece element.

As in 22 to see is the second sprocket SP2 at the at least one additional circumferential connection point CP2 with at least one of the sprocket carrier 12 and one of the several sprockets SP1 to SP12 connected. In this embodiment, the second sprocket SP2 with one of the several sprockets SP1 to SP12 at the at least one additional circumferential connection point CP2 connected. In this embodiment, the second sprocket SP2 at the at least one additional circumferential connection point CP2 with the first sprocket SP1 connected. In other words, the third sprocket SP2 at the at least one third circumferential connection point CP2 with the first sprocket SP1 connected. However, the second sprocket SP2 be connected to the one of the plurality of sprockets at another coupling point. The second sprocket SP2 can with the sprocket carrier 12 be connected.

The second sprocket SP2 is with the one of several sprockets SP1 to SP12 at the at least one additional circumferential connection point CP2 with the at least one fastening element 34 connected. The second sprocket SP2 is with the first sprocket SP1 at the at least one additional circumferential connection point CP2 with the at least one fastening element 34 connected. The second sprocket SP2 is with the one of the plurality of sprockets at the plurality of additional circumferential connection points over the plurality of fasteners 34 connected. The second sprocket SP2 is at the several additional perimeter junctions CP2 with the first sprocket SP1 over the several fasteners 34 connected. The additional perimeter connection point CP2 can through the fastener 34 be defined.

As in 22 is a total of the at least one perimeter connection point (of the at least one first perimeter connection point) CP1 of a total number of the at least one additional perimeter connection point (the at least one third perimeter connection point) CP2 different. In this embodiment, the total number of the at least one additional perimeter connection point (the at least one third perimeter connection point) is CP2 greater than the total number of the at least one perimeter connection point (the at least one first perimeter connection point) CP1 , The total number of perimeter connection points CP1 is 6 , The total number of additional perimeter connection points CP2 is 12 , The total number of the at least one additional perimeter connection point (the at least one third perimeter connection point) CP2 is twice the total number of the at least one perimeter connection point (the at least one first perimeter connection point) CP1 , The total number of the at least one third perimeter connection point CP2 is twice the total number of the at least one first perimeter connection point CP1 ,

The relationship between the total number of the at least one perimeter connection point CP1 and the total number of the at least one additional perimeter connection point CP2 however, is not limited to this embodiment. The total number of the at least one perimeter connection point CP1 may be equal to or greater than the total number of the at least one additional perimeter connection point CP2 be. The total number of perimeter connection points CP1 is not limited to this embodiment. The total number of additional perimeter connection points CP2 is not limited to this embodiment.

The total number of multiple additional perimeter connection points CP2 is greater than a total number of the plurality of sprocket mounting portions 14A , The total number of multiple additional perimeter connection points CP2 is greater than a total number of the plurality of sprocket mounting arms 22 , However, the total number of multiple additional perimeter connection points CP2 equal to or less than the total number of the plurality of sprocket mounting portions 14A be. The total number of multiple additional perimeter connection points CP2 may be equal to or smaller than the total number of the plurality of sprocket mounting arms 22 be.

As in 5 to see, points the third sprocket SP3 at least one additional perimeter connection point CP3 on. In this embodiment, the at least one additional circumferential connection point comprises CP3 several additional perimeter connection points CP3 , The additional perimeter connection points CP3 are in the circumferential direction D1 spaced apart. The additional perimeter connection points CP3 are provided in the same radial position and are at a constant pitch in the circumferential direction D1 intended. A total number of additional perimeter connection points CP3 is 12 , The total number of additional Perimeter connection points CP3 however, is not limited to this embodiment. The third sprocket SP3 includes several through holes SP3D , The additional perimeter connection point CP3 is in a middle of the through hole SP3D Are defined.

As in 4 to see includes the second sprocket SP2 several additional through holes SP2E , The additional perimeter connection point CP3 is in a middle of the additional through-hole SP2E Are defined. The additional through holes SP2E of the second sprocket SP2 are provided at positions corresponding to the through holes SP3D ( 4 ) of the third sprocket SP3 correspond.

As in 23 to see includes the rear Fahrradkettenradanordnung 10 several spacers SC2 between the sprockets SP2 and SP3 in the axial direction D2 are provided. The spacer SC2 includes a spacer hole SC2A , The fastener 36 extends through the additional through hole SP2E , the through holes SP3D and the spacer hole SC2A , The spacer SC2 can be integral with the fastener 36 be formed as a single, one-piece element.

As in 22 to see is the third sprocket SP3 at the at least one additional circumferential connection point CP3 with at least one of the sprocket carrier 12 and one of the several sprockets SP1 to SP12 connected. In this embodiment, the third sprocket is SP3 with one of the several sprockets SP1 to SP12 at the at least one additional circumferential connection point CP3 connected. In this embodiment, the third sprocket is SP3 with the second sprocket SP2 at the at least one additional circumferential connection point CP3 connected. However, the third sprocket SP3 be connected to the one of the plurality of sprockets at another connection point. The third sprocket SP3 can with the sprocket carrier 12 be connected.

The third sprocket SP3 is with the one of several sprockets SP1 to SP12 at the at least one additional circumferential connection point CP3 over the at least one additional fastener 36 connected. The third sprocket SP3 is with the second sprocket SP2 at the at least one additional circumferential connection point CP3 over the at least one additional fastener 36 connected. The third sprocket SP3 is connected to the one of the plurality of sprockets at the plurality of additional circumferential connection points via the plurality of additional fastening elements. The third sprocket SP3 is at the several additional perimeter junctions CP3 with the second sprocket SP2 over the several additional fasteners 36 connected. In other words, the fourth sprocket SP3 set up to work on the third sprocket SP2 over the at least one additional fastener 36 to be attached / to be. The fourth sprocket SP3 is set to work on the third sprocket SP2 over the several additional fasteners 36 to be attached / to be. The additional perimeter connection point CP3 can by the additional fastener (the additional fastener) 36 be defined.

As in 22 to see, a total of the at least one perimeter connection point is different CP1 from a total of the at least one additional perimeter connection point CP3 , In this embodiment, the total number of the at least one peripheral connection point is CP1 less than the total number of the at least one additional perimeter connection point CP3 , The total number of perimeter connection points CP1 is 6 , The total number of additional perimeter connection points CP3 is 12 , The total number of at least one additional perimeter connection point CP3 is twice the total number of the at least one perimeter connection point CP1 , However, the relationship is between the total number of the at least one perimeter connection point CP1 and the total number of the at least one additional perimeter connection point CP3 not limited to this embodiment. The total number of the at least one perimeter connection point CP1 may be equal to or greater than the total number of the at least one additional perimeter connection point CP3 be. The total number of perimeter connection points CP1 is not limited to this embodiment. The total number of additional perimeter connection points CP3 is not limited to this embodiment.

The total number of multiple additional perimeter connection points CP3 is greater than a total number of the plurality of sprocket mounting portions 14A , The total number of multiple additional perimeter connection points CP3 is greater than a total number of the plurality of sprocket mounting arms 22 , However, the total number of multiple additional perimeter connection points CP3 equal to or less than the total number of the plurality of sprocket mounting portions 14A be. The total number of multiple additional perimeter connection points CP3 may be equal to or smaller than the total number of the plurality of sprocket mounting arms 22 be.

As in 6 to see, the fourth sprocket points SP4 at least a second Extensive connection point CP4 on. The second sprocket SP4 namely, has at least one second circumferential connection point CP4 on. In this embodiment, the second sprocket comprises SP4 several second circumferential connection points CP4 , The second circumferential connection points CP4 are from each other in the circumferential direction D1 spaced. The second circumferential connection points CP4 are provided in the same radial position and are at a constant pitch in the circumferential direction D1 intended. A total of the second circumferential connection points CP4 is 6 , The total number of second perimeter connection points CP4 however, is not limited to this embodiment. The second sprocket SP4 includes several through holes SP4D , The second circumferential connection point CP4 is in a middle of the through hole SP4D Are defined. As in 2 to see, the additional fastener extends 38 through the through hole SP4D and the mounting hole 20B therethrough.

As in 22 to see is the second sprocket SP4 with the radially extending surface 16 ( 16 ) of at least one of the plurality of sprocket mounting portions 14A to 14E at the at least one second circumferential connection point CP4 connected. In this embodiment, the second sprocket SP4 with the plurality of radially extending surfaces 16B ( 16 ) of the plurality of sprocket attachment portions 14B at the plurality of second circumferential connection points CP4 connected. The second sprocket SP4 is with the radially extending surfaces 16B ( 16 ) of the sprocket attachment sections 14B at the plurality of second circumferential connection points CP4 with the several additional fasteners 38 connected. In other words, the second sprocket SP4 is at the second Umfangskettenradbefestigungsabschnitt 19B at the at least one second peripheral connecting portion CP4 connected. The second sprocket SP4 is with the second Umfangskettenradbefestigungsabschnitt 19B at the at least one second peripheral connecting portion CP4 over the at least one second fastening element 38 connected. The second sprocket SP4 is with the second Umfangskettenradbefestigungsabschnitt 19 at several second circumferential connection points CP4 connected via the plurality of second connecting elements. The additional circumferential connection point (the second circumferential connection point) CP4 can through the second fastener 38 To be defined.

A total number of the at least one second perimeter connection point CP4 is equal to or greater than a total number of the at least one first circumference connection point CP1 , In this embodiment, the total number of the at least one second circumferential connection point is CP4 equal to the total number of the at least one first perimeter connection point CP1 , However, the total number of the at least one second perimeter connection point may be CP4 less than or greater than the total number of the at least one first perimeter connection point CP1 be.

The second circumferential connection point CP4 is radially inward from the peripheral connection point CP1 , the additional perimeter point CP2 and the additional perimeter connection point CP3 intended. The additional perimeter connection point CP2 and the additional perimeter connection point CP3 lie radially outside the peripheral connection point CP1 , The additional perimeter connection point CP3 is radially outside the peripheral connection point CP1 and the additional perimeter connection point CP2 , The additional perimeter connection point CP2 and the additional perimeter connection point CP3 are from the perimeter connection point CP1 and the second circumferential connection point CP4 in the circumferential direction D1 added. The additional perimeter connection point CP2 is from the additional perimeter connection point CP3 in the circumferential direction D1 added. The arrangement of the peripheral connection point CP1 , the additional perimeter connection point CP2 , the additional perimeter connection point CP3 and the second circumferential connection point CP4 however, is not limited to this embodiment.

As in 7 to see includes the sprocket SP5 several through holes SP5D , A total number of through holes SP5D is 6 , The total number of through holes SP5D however, is not limited to this embodiment. As in 2 to see, the additional fastener extends 40 through the through hole SP5D and the mounting hole 20C therethrough.

As in 8th to see includes the sprocket SP6 several through holes SP6D , A total number of through holes SP6D is 6 , The total number of through holes SP6D however, is not limited to this embodiment. As in 2 to see, the additional fastener extends 42 through the through hole SP6D and the mounting hole 20D therethrough.

As in 9 to see includes the sprocket SP7 several through holes SP7D , A total number of through holes SP7D is 6 , The total number of through holes SP7D however, is not limited to this embodiment. As in 10 to see includes the sprocket SP8 several through holes SP8D , The through holes SP8D are provided at positions corresponding to the through holes SP7D correspond. A total number of through holes SP8D is 6 , The total number of through holes SP8D however, is not limited to this embodiment.

As in 2 to see are the sprockets SP7 and SP8 with the additional fastener 42 at the sprocket attachment portion 14E connected. The rear bicycle sprocket assembly 10 includes several spacers SC3 in the axial direction D2 between the sprockets SP7 and SP8 are provided. The spacer SC3 includes a spacer hole SC3A , The additional fastening element 42 extends through the through hole SP7D , the through hole SP8D , the mounting hole 20E and the spacer hole SC3A therethrough. The spacer SC3 can be integral with the additional fastener 44 be formed as a single, one-piece element.

As in 11 to see includes the sprocket SP9 an internal toothing SP9S , The internal toothing SP9S includes several internal splines SP9T configured to engage with the plurality of outer spline teeth (not shown) of the rear bicycle hub assembly H ( 2 ) to be engaged. As in 2 to see the sprocket SP9 between the central section 21 of the sprocket carrier 12 and the locking element H1 the rear bicycle hub assembly H in the axial direction D2 held in a state in which the rear bicycle sprocket assembly 10 on the rear bicycle hub assembly H is appropriate.

As in 12 to see includes the sprocket SP10 an internal spline SP10S , The internal spline SP10S includes several internal splines SP10T configured to engage with the plurality of outer spline teeth (not shown) of the rear bicycle hub assembly H ( 2 ) to be engaged. As in 2 to see the sprocket SP10 between the central section 21 of the sprocket carrier 12 and the locking element H1 the rear bicycle hub assembly H in the axial direction D2 held in a state in which the rear bicycle sprocket assembly 10 on the rear bicycle hub assembly H is appropriate.

As in 24 to see includes the sprocket SP11 an internal spline SP11S , The internal spline SP11S includes several internal splines SP11T configured to engage with the plurality of outer spline teeth (not shown) of the rear bicycle hub assembly H ( 2 ) to be engaged. As in 2 to see the sprocket SP11 between the central section 21 of the sprocket carrier 12 and the locking element H1 the rear bicycle hub assembly H in the axial direction D2 held in a state in which the rear bicycle sprocket assembly 10 on the rear bicycle hub assembly H is appropriate.

As in 25 to see includes the sprocket SP12 a torque transmission profile SP12F , The torque transmission profile SP12F has several external splines SP12G on that for engagement with the sprocket SP11 are set to transmit a torque. As in 13 to see includes the sprocket SP11 a torque transmission profile SP11F , The torque transmission profile SP11F includes several additional internal splines SP11G which are set to work with the several external splines SP12G of the sprocket SP12 to be engaged to transmit the torque.

As in 2 to see is the first sprocket element SP8 on the second sprocket element SP7 attached. The second sprocket element SP7 is at the primary radially extending surface 16E of the primary sprocket mounting section 14E the plurality of sprocket mounting portions 14A to 14E attached. The second sprocket element SP7 is in the axial direction D2 with respect to the rotational center axis A1 between the first sprocket element SP8 and the primary radially extending surface 16E of the primary sprocket mounting section 14E arranged. The second sprocket element SP7 is at the primary radially extending surface 16E of the primary sprocket mounting section 14E with the first sprocket fastener 44 attached. The first sprocket element SP8 is on the second sprocket element SP7 with the first sprocket fastener 44 attached.

In this embodiment, the second sprocket element SP7 at the primary radially extending surface 16E of the primary sprocket mounting section 14E with the plurality of first sprocket fasteners 44 ( 26 ) attached. The first sprocket element SP8 is on the second sprocket element SP7 with the plurality of first sprocket fasteners 44 ( 26 ) attached. The total number of first sprocket fasteners 44 however, is not limited to this embodiment. The first sprocket element SP8 can on the second sprocket element SP7 with another attachment structure, such as an adhesive or diffusion bond, instead of or in addition to the first sprocket fastener 44 be attached. The second sprocket element SP7 may be at the primary radially extending surface 16E of the primary sprocket mounting section 14E with another attachment structure, such as adhesive or diffusion bonding, in place of or in addition to the first sprocket fastener 44 to be attached.

The second sprocket element SP7 is with the primary radially extending surface 16E of the primary sprocket mounting section 14E in contact. The first sprocket element SP8 is in the axial direction D2 from the primary radially extending surface 16E of the primary sprocket mounting section 14E spaced. The second sprocket element SP7 is the primary axially extending surface 18E of the primary sprocket mounting section 14E facing radially. The second sprocket element SP7 can with the primary axially extending surface 18E of the primary sprocket mounting section 14E be in touch.

The third sprocket element SP6 is at the secondary radially extending surface 16D the secondary sprocket attachment section 14D the plurality of sprocket mounting portions 14A to 14E attached. The third sprocket element SP6 is at the secondary radially extending surface 16D of the second sprocket mounting portion 14D with the second sprocket fastener 42 attached, that of the first sprocket fastener 44 is different. The second sprocket fastener 42 is one of the first sprocket fastener 44 separate element. The second sprocket fastener 42 is radially outside of the first sprocket fastener 44 intended.

In this embodiment, the third sprocket element SP6 with the several second sprocket mounting elements 42 at the secondary radially extending surface 16D of the second sprocket mounting portion 14D attached. The total number of second sprocket fasteners 42 however, is not limited to this embodiment. The third sprocket element SP6 may be at the secondary radially extending surface 16D the secondary sprocket attachment section 14D with another attachment structure, such as an adhesive or diffusion bond, instead of or in addition to the second sprocket attachment element 42 be attached. In this embodiment, the sprocket SP6 the third sprocket element. The sprockets SP1 . SP4 and SP5 however, they may be the third sprocket element.

The second sprocket SP7 is in the axial direction D2 between the first sprocket SP8 and the third sprocket SP6 intended. The third sprocket element SP6 is with the secondary radially extending surface 16D the secondary sprocket attachment section 14D in contact. The second sprocket element SP7 is in the axial direction D2 from the secondary radially extending surface 16D the secondary sprocket attachment section 14D spaced. The third sprocket element SP6 is the secondary axially extending surface 18D of the second sprocket mounting portion 14D facing radially. The third sprocket element SP6 can with the primary axially extending surface 18D of the primary sprocket mounting section 14E be in touch.

In the above embodiments, the first sprocket element is SP8 with the first sprocket fastener 44 on the second sprocket element SP7 attached, and the second sprocket element SP7 is with the first sprocket fastener 44 at the primary radially extending surface 16E of the primary sprocket mounting section 14E attached. The attachment structure of the first sprocket element SP8 and the second sprocket element SP7 However, on the combination of sprockets SP1 and SP4 , the combination of sprockets SP4 and SP5 , the combination of sprockets SP5 and SP6 and the combination of sprockets SP6 and SP7 be applied.

Second embodiment

A rear bicycle sprocket arrangement 210 According to a second embodiment will be described below with reference to the 26 to 28 described. The rear bicycle sprocket assembly 210 has the same structure and / or configuration as those of the rear bicycle sprocket assembly 10 on, with the exception of the sprocket carrier 12 , Thus, elements having substantially the same function as those in the first embodiment will be numbered the same and will not be described and / or illustrated again in detail here for the sake of brevity.

As in 26 to see includes the rear Fahrradkettenradanordnung 210 the multiple sprockets SP and a sprocket carrier 212 , The second sprocket SP2 is at the at least one additional circumferential connection point CP2 with at least one of the sprocket carrier 212 and one of the several sprockets SP1 to SP12 connected. In this embodiment, the second sprocket SP2 with the sprocket carrier 212 at the at least one additional circumferential connection point CP2 connected. The second sprocket SP2 is at the several additional perimeter junctions CP2 with the sprocket carrier 212 connected.

The rear bicycle sprocket assembly 210 further comprises the at least one fastening element 34 , The second sprocket SP2 is at the at least one additional circumferential connection point CP2 over the at least one fastener 34 with the sprocket carrier 212 connected In this embodiment, the rear bicycle sprocket assembly comprises 210 Furthermore, the plurality of fasteners 34 , The at least one additional circumferential connection point CP2 includes the several additional perimeter connection points CP2 , The second sprocket SP2 is at the several additional perimeter junctions CP2 with the several fasteners 34 with the sprocket carrier 212 connected.

As in 27 to see, the sprocket carrier points 212 essentially the same structure as the sprocket carrier 12 of the first embodiment. In this embodiment, the sprocket carrier comprises 212 several additional sprocket mounting sections 250 , A pair of additional sprocket attachment sections 250 extends from the sprocket mounting arm 22 radially outward. A total number of additional sprocket attachment sections 250 is in this embodiment 12 , The total number of additional sprocket attachment sections 250 however, is not limited to this embodiment. For example, the pair of additional sprocket attachment portions 250 be a Kettenradbefestigungsabschnitt or at least three Kettenradbefestigungsabschnitte. The arrangement of the peripheral connection point CP1 , the additional perimeter connection point CP2 , the additional perimeter connection point CP3 and the second circumferential connection point CP4 in the first embodiment can be applied to this embodiment.

As in 28 to see is the additional sprocket mounting section 250 between the sprockets SP2 and SP3 in the axial direction D2 intended. The additional through holes SPIE are from the first sprocket SP1 omitted. The spacers SC1 and SC2 are from the rear bicycle sprocket assembly 210 omitted. The additional sprocket attachment section 250 includes a fastening through-hole 250A and an additional attachment through hole 250B , The fastener 34 extends through the through holes SP2D and the fastening through hole 250A therethrough. The fastener 36 extends through the additional through hole SP2E , the through holes SP3D and the additional attachment through hole 250B therethrough.

Third embodiment

A rear bicycle sprocket arrangement 310 according to a third embodiment will be described below with reference to the 29 and 30 described. The rear bicycle sprocket assembly 310 has the same structure and / or configuration as the rear bicycle sprocket assembly 10 except for the attachment structure of the sprockets SP4 and SP5 , Thus, elements having substantially the same function as those in the above embodiments will be numbered identically herein and will not be described and / or illustrated in detail here for the sake of brevity.

As in 29 seen in the rear bicycle sprocket assembly 310 the attachment structure of the first sprocket element SP8 and the second sprocket element SP7 for the fourth sprocket element SP5 and the fifth sprocket element SP4 , In particular, the fourth sprocket element SP5 on the fifth sprocket element SP4 attached. The fifth sprocket element SP4 is at the tertiary radially extending surface 16C of the tertiary sprocket mounting section 14C the plurality of sprocket mounting portions 14A to 14E attached. The fifth sprocket element SP4 is at the tertiary radially extending surface 16C of the tertiary sprocket mounting section 14C with the third sprocket fastener 40 attached. The fourth sprocket element SP5 is on the fifth sprocket element SP4 with the third sprocket fastener 40 attached. The third sprocket fastener 40 differs from the first sprocket fastener 44 and the second sprocket mounting member 42 , The third sprocket fastener 40 is one of the first sprocket fastener 44 and the second chain fastener 42 separate element. The third sprocket fastener 40 is from the first sprocket fastener 44 and the second sprocket mounting member 42 provided radially outward.

In this embodiment, the fifth sprocket element SP4 at the tertiary radially extending surface 16C of the tertiary sprocket mounting section 14C with the several third sprocket mounting elements 40 ( 30 ) attached. The fourth sprocket element SP5 is on the fifth sprocket element SP4 with the several third sprocket mounting elements 40 ( 30 ) attached. The total number of third sprocket fasteners 40 however, is not limited to this embodiment. The fourth sprocket element SP5 may be at the fifth sprocket element SP4 with another attachment structure such as adhesive or diffusion bonding instead of or in addition to the third sprocket fastener 40 be attached. The fifth sprocket element SP4 may be at the tertiary radially extending surface 16C of the tertiary sprocket mounting section 14C with another attachment structure, such as adhesive or diffusion bonding, in place of or in addition to the third sprocket fastener 40 to be attached.

The fifth sprocket element SP4 is with the tertiary radially extending surface 16C of the tertiary sprocket mounting section 14C in contact. The fourth sprocket element SP5 is from the tertiary radially extending surface 16C of the tertiary sprocket mounting section 14C in the axial direction D2 spaced. Both the fourth sprocket element SP5 as well as the fifth sprocket element SP4 are the tertiary axially extending surface 18C of the tertiary sprocket mounting section 14C facing radially. At least one of the fourth sprocket element SP5 and the fifth sprocket element SP4 can with the tertiary axially extending surface 18C of the tertiary sprocket mounting section 14C be in touch.

The rear bicycle sprocket assembly 310 includes several spacers SC4 in the axial direction D2 between the fourth sprocket element SP5 and the fifth sprocket element SP4 are provided. The spacer SC4 includes a spacer hole SC4A , The third sprocket fastener 40 extends through the through hole SP4D , the through hole SP5D , the mounting hole 20C and the spacer hole SC4A therethrough. The spacer SC4 can be integral with the third Kettenradbefestigungselement 40 be formed as a single, one-piece element.

The sixth sprocket element SP1 is at the quaternary radially extending surface 16B the quaternary sprocket mounting section 14B the plurality of sprocket mounting portions 14A to 14E instead of the sprocket SP4 attached to the first embodiment. The sixth sprocket element SP1 is at the quaternary radially extending surface 16B the quaternary sprocket mounting section 14B with the fourth sprocket fastener 38 attached. The fourth sprocket fastener 38 is one of the first sprocket fastener 44 , the second sprocket fastening element 42 and the third sprocket attachment means 40 separate element. The fourth sprocket fastener 38 is radially outside of the first sprocket fastener 44 , the second sprocket fastening element 42 and the third sprocket mounting member 40 intended.

In this embodiment, the sixth sprocket element SP1 at the quaternary radially extending surface 16B the quaternary sprocket mounting section 14B with the several fourth sprocket fasteners 38 ( 30 ) attached. The total number of the fourth sprocket fasteners 38 however, is not limited to this embodiment. The sixth sprocket element SP1 may be at the quaternary radially extending surface 16B the quaternary sprocket mounting section 14B with another attachment structure, such as an adhesive or diffusion bond, instead of or in addition to the fourth sprocket fastener 38 be attached. In this embodiment, the sprocket SP1 the sixth sprocket element. The sprockets SP2 and SP3 however, they may be the sixth sprocket element.

The sixth sprocket element SP1 is with the quaternary radially extending surface 16B the quaternary sprocket mounting section 14B in contact. The sixth sprocket element SP1 is the axially extending surface 18B the quaternary sprocket mounting section 14B facing radially. The sixth sprocket element SP1 can with the axially extending surface 18B the quaternary sprocket mounting section 14B be in touch.

As in 29 see, in this embodiment, the sprocket SP2 at the radially extending surface 16A the sprocket mounting section 14A instead of the sprocket SP1 attached to the first embodiment. As in 30 to see is the sprocket S3 with the fasteners 34 on the sprocket SP2 attached.

Further, the second axial length AL2 smaller than the first axial length AL1 , The axial length AL4 the at least ten inner splines ST is smaller than the axial non-splined length AL3 ,

modifications

The structures of the rear bicycle sprocket assemblies 10 and 210 can be combined with each other. As in a rear bicycle sprocket assembly 310 from 31 to see, for example, the second sprocket SP2 at the at least one additional circumferential connection point CP2 both on the sprocket carrier 212 as well as on one of the several sprockets SP1 to SP12 connected. The second sprocket SP2 is at the several additional perimeter junctions CP2 both with the sprocket carrier 212 as well as with the first sprocket SP1 with the several fasteners 34 connected.

The term "comprising" and its derivatives, as used herein, are to be understood as open-ended terms that specify the presence of said features, elements, components, groups, integers and / or steps, the presence of other unnamed features, elements But do not exclude components, groups, integers, and / or steps. The above also applies to words with similar meanings, such as the terms "with", "exhibit", and their derivatives.

The terms "limb", "section", "section", "part", "element", "body" and "structure", when used in the singular, may have the dual meaning of a single part or multiple parts.

The ordinal numbers such as "first", "second" as given in the present application are merely identifiers, but have no other meaning, such as a particular order or the like. Moreover, for example, the term "first element" itself does not imply the existence of a "second element" and the term "second element" does not itself imply the existence of a "first element".

The term "pair of" as used herein may include the configuration in which the pair of elements have different shapes or structures from each other in addition to the configuration in which the pair of elements have the same shapes or structures.

The terms "a" (or "a"), "one or more" and "at least one" may be used interchangeably herein.

Finally, the terms of degree such as "substantially", "about" and "approximately" as used herein mean a reasonable amount of deviation of the modified term such that the end result is not significantly changed. All numerical values described in this application can be construed to include "substantially," "about," and "about."

Obviously, many modifications and variations of the present invention are possible in light of the above teachings. It is therefore to be understood that within the scope of the appended claims, the invention may be practiced otherwise than as specifically described herein.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• US 15608924 [0001]
• US 15608915 [0001]
• US 15/673346 [0001]
• US 15/686177 [0001]
• US 15686179 [0001]
• US 15/712388 [0001]
• US 15/712407 [0001]
• US 15/851781 [0001]
• US 15/851785 [0001]
• US 15/879353 [0001]
• US 15/964078 [0001]

Claims (20)

A rear bicycle sprocket assembly configured to mount a sprocket carrier body of a rear bicycle hub assembly, the rear bicycle sprocket assembly comprising: several sprockets; and a sprocket carrier adapted to support at least one of the plurality of sprockets and comprising: at least ten inner splines adapted for engagement with the sprocket support of the rear bicycle hub assembly, the at least ten inner splines extending in an axial direction with respect to a rotational center axis of the rear bicycle sprocket assembly and spaced apart in a circumferential direction with respect to the rotational center axis; and a circumferentially extending non-splined portion arranged to be adjacent to the at least ten inner spline teeth in the axial direction and recessed from the at least ten inner spline teeth in a radial direction with respect to the rotational center axis. Rear bicycle sprocket arrangement behind Claim 1 wherein a total number of the at least ten internal splines is equal to or greater than 20, preferably equal to or less than 25, more preferably within the range of 22 to 24. Bicycle rear wheel set arrangement behind Claim 1 or 2 wherein at least two inner splines of said at least ten inner splines are circumferentially disposed at a first inner lead angle with respect to a rotational center axis of said rear bicycle sprocket assembly, and said first inner lead angle is preferably in the range of 13 degrees to 17 degrees, said first inner lead angle being 15 degrees is. Rear bicycle sprocket arrangement behind Claim 3 wherein at least two other inner splines of the at least ten inner splines are circumferentially disposed at a second inner lead angle with respect to the rotational center axis and the second inner lead angle is different than the first inner lead angle, wherein the second inner lead angle is preferably in the range of 28 degrees to 32 degrees wherein the second inner pitch angle is more preferably 30 degrees. Rear bicycle sprocket arrangement behind Claim 4 wherein the first inner pitch angle is half of the second inner pitch angle. Rear bicycle sprocket assembly after one of the Claims 1 to 5 wherein the at least ten inner splines comprise a plurality of internal spline drive surfaces for receiving drive torque from the rear bicycle hub assembly during pedaling, the plurality of inner spline drive surfaces each including a radially outermost edge, a radially innermost edge, and a radial length extending radially from the radially inner edge outermost edge is defined to the radially innermost edge, and the sum of the radial lengths in the range of 11 mm to 14 mm, preferably from 12 mm to 13 mm. Rear bicycle sprocket assembly after one of the Claims 1 to 6 wherein the circumferentially extending non-splined portion is disposed such that the at least ten inner splines are divided in the axial direction by the circumferentially extending non-splined portion into at least ten first inner splines and at least ten second splines. Rear bicycle sprocket arrangement behind Claim 7 wherein the plurality of first internal splines have a first axial length in the range of 4 mm to 5 mm, wherein the plurality of second internal splines preferably have a second axial length in the range of 4.5 mm to 5.5 mm. Rear bicycle sprocket assembly after one of the Claims 1 to 8th wherein the circumferentially extending non-splined portion has an axial, non-splined length defined in the axial direction, and the axial non-spline length is in the range of 7 mm to 9 mm. Rear bicycle sprocket assembly after one of the Claims 1 to 9 wherein a sum of an axial length of the at least ten inner splines and an axial non-spline length of the circumferentially extending non-spline portion is in the range of 16 mm to 21 mm. Rear bicycle sprocket assembly after one of the Claims 1 to 10 wherein the circumferentially extending non-splined portion extends completely in the circumferential direction. Rear bicycle sprocket assembly after one of the Claims 1 to 11 wherein the sprocket carrier is made of a metallic material, wherein the metallic material is preferably aluminum. A rear bicycle sprocket assembly comprising: a first sprocket member having a first maximum sprocket diameter and a first sprocket body and a plurality of first sprocket teeth extending radially outward from the first sprocket body with respect to a rotational center axis of the rear bicycle sprocket assembly; a second sprocket member having a second maximum sprocket diameter greater than the first maximum sprocket diameter and a second sprocket body and a plurality of second sprocket teeth extending radially outward from the second sprocket body with respect to the rotational center axis; and a sprocket carrier having a plurality of sprocket mounting portions, wherein at least two of the plurality of sprocket mounting portions each have a radially extending surface and an axially extending surface with respect to the rotational center axis, at least two of the plurality of sprocket mounting portions being adjacent to each other in a radial direction with respect to the rotational center axis; the first sprocket member is fixed to the second sprocket, the second sprocket member is fixed to a primary radially extending surface of a primary sprocket mounting portion of the plurality of sprocket mounting portions, and the second sprocket member is in an axial direction with respect to the rotational center axis between the first sprocket member and the primary radially extending one Surface of the primary Kettenradbefestigungsabschnitts is arranged. Rear bicycle sprocket arrangement behind Claim 13 wherein the second sprocket member is secured to the primary radially extending surface of the primary sprocket mounting portion with a first sprocket mounting member, and the first sprocket member is secured to the second sprocket member with the first sprocket mounting member. Rear bicycle sprocket arrangement behind Claim 13 or 14 , further comprising: a third sprocket member having a third maximum sprocket diameter larger than the second maximum sprocket diameter, and a third sprocket body and a plurality of third sprocket teeth extending radially outward from the third sprocket body with respect to the rotation center axis, the third one Sprocket element is attached to a secondary radially extending surface of a secondary sprocket mounting portion of the plurality of sprocket mounting portions. Rear bicycle sprocket arrangement behind Claim 15 wherein the second sprocket member is attached to the primary radially extending surface of the primary sprocket mounting portion with a first sprocket mounting member, the first sprocket member is secured to the second sprocket member with the first sprocket mounting member, and the third sprocket member is attached to the secondary radially extending surface of the secondary sprocket mounting portion is secured with a second sprocket mounting member that is different from the first sprocket mounting member. Rear bicycle sprocket assembly after one of the Claims 13 to 16 , further comprising: a fourth sprocket member having a fourth maximum sprocket diameter larger than the second maximum sprocket diameter, and a fourth sprocket body and a plurality of fourth sprocket teeth extending radially outward of the fourth sprocket body with respect to the rotational center axis; and a fifth sprocket member having a fifth maximum sprocket diameter greater than the fourth maximum sprocket diameter and a fifth sprocket body and a plurality of fifth sprocket teeth extending radially outward from the fifth sprocket body with respect to the rotational center axis, the fourth sprocket member being at the fifth sprocket Sprocket is attached, and the fifth sprocket element is attached to a tertiary radially extending surface of a tertiary Kettenradbefestigungsabschnitts of the plurality of sprocket mounting portions. Rear bicycle sprocket arrangement behind Claim 17 wherein the fifth sprocket member is secured to the tertiary radially extending surface of the tertiary sprocket mounting portion with a third sprocket mounting member, and the fourth sprocket member is secured to the fifth sprocket member with the third sprocket mounting member. Rear bicycle sprocket arrangement behind Claim 17 , further comprising: a third sprocket member having a third maximum sprocket diameter larger than the second maximum sprocket diameter, and a third sprocket body and a plurality of third sprocket teeth extending radially outward of the third sprocket body with respect to the rotational center axis, the third sprocket member at a secondary radially extending surface of a secondary one Sprocket mounting portion of the plurality of sprocket mounting portions is fixed, and the fourth maximum sprocket diameter of the fourth sprocket element is greater than the third maximum sprocket diameter. Rear bicycle sprocket arrangement behind Claim 17 or 18 , further comprising: a sixth sprocket element having a sixth maximum sprocket diameter greater than the fifth maximum sprocket diameter and a sixth sprocket body and a plurality of sixth sprocket teeth extending radially outwardly from the sixth sprocket body with respect to the rotational center axis, the sixth sprocket element is attached to a quaternary radially extending surface of a quaternary sprocket mounting portion of the plurality of sprocket mounting portions.

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