CN110733466A

CN110733466A - Wiper blade device

Info

Publication number: CN110733466A
Application number: CN201910650225.4A
Authority: CN
Inventors: A.特伦蒂克; N.约契克
Original assignee: Robert Bosch GmbH
Current assignee: Robert Bosch GmbH
Priority date: 2018-07-19
Filing date: 2019-07-18
Publication date: 2020-01-31
Also published as: DE102018212050A1; FR3084041A1; FR3084041B1

Abstract

The invention is based on a wiper blade device (10) for connection to at least wiper arms (12), having a wiper blade (14), at least wiper blade adapters (16), at least valve units (18) arranged in the wiper blade adapters (16), to which at least valve units fluid, in particular wiping fluid, is supplied via exactly fluid channels (20), and at least fluid outlet units (22) coupled to the valve units (18), which in particular comprise at least fluid duct elements (24), which at least fluid duct elements have at least fluid outlet openings (26) for fluid outlet and which are provided for the targeted outlet of fluid, in particular of wiping fluid, in both wiping directions of the wiper blade (14), it is proposed that the valve units (18) comprise rotatable inserts (28) which are provided for the realization of at least two valve positions for the fluid outlet.

Description

Wiper blade device

Technical Field

The present invention relates to wiper blade devices.

Background

It is known to provide wiper blade devices for connection to at least wiper arms, having a wiper blade, having at least 0 wiper blade adapter, having at least 1 valve units arranged in the wiper blade adapter, which at least valve units are supplied with fluid, in particular with wiping fluid, via exactly fluid channels, and having at least fluid outlet units coupled to the valve units, wherein at least fluid outlet units, in particular, comprise at least fluid duct elements, wherein at least fluid duct elements have at least fluid outlet openings for fluid outlet, and wherein at least fluid outlet units are provided for the targeted outlet of fluid, in particular of wiping fluid, in both wiping directions of the wiper blade.

Disclosure of Invention

The invention is based on a wiper blade device for connection to at least wiper arms, having a wiper blade, having at least 0 wiper blade adapter, having at least 1 valve units arranged in the wiper blade adapter, which at least valve units are supplied with fluid, in particular wiping fluid, via exactly fluid channels, and having at least fluid outlet units coupled to the valve units, wherein the at least fluid outlet units, in particular, comprise at least fluid duct elements, wherein the at least fluid duct elements have at least fluid outlet openings for fluid outlet, and wherein the at least fluid outlet units are provided for the targeted outlet of fluid, in particular wiping fluid, in both wiping directions of the wiper blade.

It is proposed that the valve unit comprises a rotatable insert which is provided for realizing at least two valve positions for the fluid output.

A wiper blade device is preferably provided for use on a vehicle, in particular a motor vehicle, in this respect a wiper blade device is to be understood in particular as a device comprising at least wiper blades and at least wiper blade adapters, "wiper blade adapter" is to be understood in particular in this respect as an adapter which has a contact region to a wiper blade component and is permanently connected to the wiper blade component, in this respect an adapter which is provided for providing a coupling region of the wiper blade component for coupling and/or contacting with a wiper arm component (in particular preferably with the wiper arm adapter), in this case a wiper arm adapter is to be understood in particular as an adapter which has a contact region to a wiper arm component and is permanently connected to the wiper arm component and which is provided for providing a coupling region of the wiper arm component for coupling and/or contacting with the wiper blade adapter.

In this context, a "valve unit" is to be understood in particular to mean a unit comprising at least valves and/or at least valve members, preferably, in this respect, a unit is to be understood that is provided for controlling and/or regulating the flow of a fluid (in particular a liquid, in particular preferably wiping liquid), particularly preferably, in this respect, a unit is to be understood that is provided for controlling and/or regulating the flow quantity, the flow direction and/or the flow in general , "a" object is to be understood to be particularly designed and/or equipped for a defined function "in particular, it is to be understood that this object carries out and/or carries out this defined function in at least application states and/or operating states.

In particular, by means of the configuration of the rotatable insert, an advantageous valve unit can be provided, preferably valve units can be provided, which are arranged at least for the most part in the wiper blade adapter.

In this connection, "at least valve units comprise at least rotatable inserts" is to be understood in particular to mean that the valve unit comprises at least elements which are at least substantially rotatable, in particular in this case it is understood that the elements are at least partially movably mounted.

The rotatable insert "is provided for realizing at least two valve positions for the fluid discharge" is to be understood in this respect in particular to mean that the rotatable insert has at least two different positions, in particular rotational positions, which are each provided for the purpose of discharging fluid under a fluid pressure applied to the valve unit, in particular through the fluid discharge openings, the rotatable insert preferably has at least two different positions, which are each provided for the purpose of discharging fluid under a fluid pressure applied to the valve unit, in particular through mutually different fluid discharge openings, preferably the insert is provided in at least valve positions for the purpose of being at least partially flowed through by a fluid, in particular a wiping liquid.

Furthermore, it is proposed that the rotatable insert be designed in one piece, the -piece version should advantageously also be understood as the -piece version "the -piece version" should in particular be understood as being shaped as pieces (in einem Teil), the pieces are preferably produced from individual blanks, blocks and/or castings, particularly preferably by an injection molding process, in particular a one-component and/or multi-component injection molding process.

In this respect, "side opening" is to be understood in particular as a cutout arranged in the mantle surface of the rotatable insert, it is to be understood in particular that an opening is provided for fluidically coupling the interior space of the insert locally with the surroundings of the insert, the "side opening" is to be understood in particular as an opening which is provided for fluidically coupling the interior space of the insert with the normals of the surrounding face of the insert, "with the overlap" being understood in particular as an opening which is provided for fluidically coupling the insert with the surroundings of the insert, "with the normal of the rotatable insert" (surrounded by the side opening), at least normal of the radially outwardly directed face of the rotatable insert with at least normal of the face of the surrounding face of the insert, "with the overlap" being understood in particular as an intersection point of the normal of the face of the rotatable insert (surrounded by the side opening) with at least normal of the face of the surrounding face of the rotatable insert with 3578 normal, it is to be understood in particular that, starting from the insert, the intersection point of the normal of the face of the rotatable insert with the normal of the face of the rotatable insert, the rotatable insert with 3590 normal of the face of the rotatable insert, the rotatable insert may be advantageously, and the fluid outlet element, the fluid outlet may be located after the intersection point of the intersection of the normal of the fluid duct element, 3535, 3550, 3590, the fluid outlet of the rotatable insert, the fluid duct element, and/3550, and the fluid outlet of the fluid duct element, and vice versa.

It is furthermore proposed that the rotatable insert of the valve unit be provided for realizing at least three switching positions, wherein each switching position corresponds to a defined rotational position (Drehlage) of of the insert, the rotatable insert preferably has at least -th switching position and a second switching position, in which at least side openings each have an overlap with at least fluid line elements of the fluid outlet unit, the rotatable insert preferably has at least neutral switching positions, in which no side opening has an overlap with at least fluid line elements of the fluid outlet unit.

In particular, a saving in water for the wiping device can be advantageously achieved thereby, in addition, a fluid output synchronized with the wiping direction can be advantageously achieved, it is alternatively conceivable that at least wiper blades do not have a preferred wiping direction relative to the surface to be wiped at any time during the wiping process.

It is furthermore proposed that at least spring units are provided for supporting the rotation of the rotatable insert, preferably the spring units are formed in particular by return springs which are provided for moving the rotatable insert into a defined switching position, in particular into a neutral switching position, without sufficient reaction force, however, other configurations of the spring units which are considered to be expedient by the person skilled in the art can in principle also be considered, it is particularly preferred that the spring units are provided for the indirect coupling of the rotatable insert tool with the housing, "spring units" are understood in particular to be macroscopic elements of which have at least extensions which, in the normal operating state, can be elastically changed by at least 10%, in particular by at least 20%, preferably by at least 30%, particularly advantageously by at least 50%, and which generate a reaction force which depends on and is preferably proportional to the change of the extension, which reaction force acts against the change of the element, it is understood that the maximum distance between two points of the vertical projection of the element on a plane "is understood to be a maximum distance" which "is understood that" the rotatable insert element, in particular, the direction of the fluid flow of the fluid can be advantageously achieved, even if the initial fluid flow of the rotatable insert is achieved by at least 395, it is not possible, it is advantageously by at least a rotational reaction force, it is understood that the fluid flow of the rotatable insert unit, it is able to be advantageously achieved in particular when a rotational movement of a rotational insert, it is achieved by at least 595, it is not possible to be advantageously, it is not possible to achieve a rotational movement of a rotational fluid in particular rotational movement, it is advantageous when a rotational movement of a rotational extension of a rotational element, it is achieved that a rotational fluid which is advantageous when a rotational fluid which is achieved at least a rotational element, it is not possible to be a rotational movement of a rotational element, it is advantageous when it is at least a rotational movement of at least 595, it is not at least a rotational movement of a rotational element, it is advantageous when it is achieved at least a rotational movement of at least a rotational element, it is achieved that it is achieved at least a rotational movement of at least a rotational movement.

In this respect, "an electric drive arranged in a wiper blade adapter" is to be understood in particular as meaning that the wiper blade adapter comprises at least electric drive elements which are at least largely contained within the adapter housing, in particular it is to be understood here that the elements are at least largely located within the adapter housing, "at least largely" is to be understood in particular as meaning that at least 50%, preferably at least 70%, and particularly preferably at least 90%. in particularly advantageous embodiments, the electric drive is arranged 100% within the adapter housing.

In this respect, the "socket" is to be understood in particular as an opening, in particular an electrical opening, in the housing of the electric drive, which opening is provided for receiving the side pin, in particular an electrical side pin.

It is furthermore proposed that the wiper blade adapter has at least th housing for receiving an electric drive, and at least th second housing separate from the th housing for guiding a rotatable insert, in this respect, "separation" is to be understood as meaning that at least two housings are at least partially shielded from one another by at least 2 walls of the housings, it being possible here for the housings advantageously to share at least walls, which may in particular also have openings, in order to advantageously connect the respective internally located elements.

It is furthermore proposed that at least fluid line elements are formed in one piece with the second housing , preferably at least fluid line elements are formed by at least bores in the second housing, preferably at least fluid line elements extend from the receiving region of the insert for rotation of the second housing to the outer edge of the second housing.

The invention is based, furthermore, on wiper devices having a wiper blade device and a wiper arm having a wiper arm adapter for coupling with the wiper blade device, it is proposed that the wiper arm adapter has at least side pins for supplying energy to the wiper blade device, the wiper arm adapter preferably being formed by a side lock adapter having guide pins for rotatably receiving the wiper blade adapter and having safety hooks for additional protection (Hinterscheung) of the wiper blade adapter in at least rotation positions.

The wiper device according to the invention is not limited to the above-described applications and embodiments. In particular, the wiper device according to the invention can have a different number of individual elements, components and units than those mentioned here in order to achieve the functionality described here.

Drawings

Other advantages will be derived from the following description of the drawings, wherein embodiments of the invention are shown.

Wherein:

fig. 1 shows a schematic plan view of a wiper blade device according to the invention, with a wiper blade and with a wiper blade adapter mounted on a wiper arm,

fig. 2 shows in an exploded perspective view a wiper blade adapter of a wiper blade device according to the invention, with two housings and a rotatable insert having a fluid outlet valve position ,

figure 3 shows in a perspective detailed view the rotatable insert of the wiper blade adapter in a second fluid outlet valve position,

fig. 4 shows a perspective detail view of a rotatable insert of a wiper blade adapter in the position of a fluid-flow-blocking valve.

Detailed Description

Fig. 1 shows a plan view of a wiper blade device 10. The wiper blade device 10 has a wiper blade 14 with a wiper blade adapter 16. The wiper blade device 10 is provided for connection to a wiper arm 12. Fig. 1 shows a wiper blade device 10 connected to a wiper arm 12. The connection between the wiper blade device 10 and the wiper arm 12 is realized at an end region of the wiper arm 12. The wiper arm 12 is anchored to the vehicle at the opposite end region. The wiper arm 12 can be moved via an anchor and thereby guide the wiper blade device 10.

At the end of the wiper arm 12 facing away from the anchor, the wiper arm 12 has a wiper arm adapter 44. the wiper arm adapter 44 is formed by a side lock adapter, the wiper arm adapter 44 has a side pin 38. the side pin 38 is configured as a guide pin, the wiper arm adapter 44 also has a safety hook 46, but in principle other configurations of the wiper arm adapter 44 are also conceivable which are meaningful to the person skilled in the art.

The wiper blade device 10 has a wiper blade adapter 16, the wiper blade device 10 furthermore has a wiper blade 14, the wiper blade 14 has a wind deflector unit, two spring rails and a wiper lip, the wiper blade 14 in the operating state wipes off the vehicle window, the wiper lip of the wiper blade 14 is provided for bearing against the vehicle window during the wiping operating state and wipes off the vehicle window, the wiper lip is held in the wind deflector unit by the spring rails, the wind deflector unit of the wiper blade 14 is constructed in two parts and comprises two wind deflector elements, but in principle it is also conceivable that the wind deflector unit is constructed in one part and comprises wind deflector elements.

The wiper blade adapter 16 is fixedly connected to the wiper blade 14, the wiper blade adapter 16 is connected to the spring rails of the wiper blade 14 (steps are not visible), the wiper blade adapter 16 has two mutually

separate housings

40, 42, the two

housings

40, 42 are configured to be materially separate from one another and mechanically connected to one another, furthermore, the wiper blade adapter 16 comprises a valve unit 18 to which wiping liquid is supplied via a fluid channel 20, the fluid channel 20 is provided for conveying wiping liquid from a wiping liquid reservoir, not shown, to the fluid discharge unit 22, the fluid channel 20 is guided over the wiper arm 12 and from an anchor of the wiper arm 12 up to the fluid discharge unit 22, the valve unit 18 comprises a rotatable insert 28, which is provided for carrying out three valve positions for fluid discharge, the rotatable insert 28 is guided in the second housing 42, the second housing 42 is provided for guiding the rotatable insert 28, the second housing 42 has a cylindrical receiving area for receiving the insert 28, the rotatable insert 28 has a cylindrical base 28, a plurality of inserts 30 are provided for forming a plurality of rotatable openings 3528, even if two openings are formed by a rotatable spring opening of the rotatable insert 28, a rotatable insert 3548, a rotatable insert 28 is provided for forming a rotatable outlet opening in a rotatable fluid discharge opening, a rotatable outlet opening, a rotatable insert 3532, a rotatable insert 35, a rotatable insert.

The wiper blade device 10 furthermore has an electric drive 34 arranged in the wiper blade adapter 16, which electric drive 34 is provided for rotating the rotatable insert 28 of the valve unit 18, an -th housing 40 is provided for receiving the electric drive 34, the electric drive 34 has a receptacle 36 for receiving a side pin 38 of the wiper arm 12 for supplying power, it being conceivable here for the power supply of the electric drive 34 to be located inside the wiper blade adapter 16 and independently of the receptacle 36, it being possible, for example, for a battery and/or a solar cell to be mounted on the housing 40 with the electric drive 34 for supplying power, wherein the receiving part of the side pin 38 serves as a guide and a holder for the wiper blade device 10, the side pin 38 of the wiper arm adapter 44 is provided for the power supply of the wiper blade device 10, in the coupled position of the wiper blade device 10 and the wiper arm 12 (fig. 1), the side pin 38 is inserted into the receptacle 36 provided for this purpose on the electric drive 34 of the wiper blade adapter 16, the side pin 38 is connected to an electronic device of the vehicle, the side pin 38 effects the supply of the power supply to the wiper blade adapter 38 provided for receiving the wiper blade 36, which is used as a power supply via the electrical drive 16.

The electric drive 34 is arranged inside the -th housing 40 of the wiper blade adapter 16, which is provided for rotating the rotatable insert part 28, the electric drive 34 also has a drive shaft 54, which projects at least partially into the rotatable insert part 28, the drive shaft 54 is connected in a rotationally fixed manner to the rotatable insert part 28 (step is not visible), the rotation of the rotatable insert part 28 of the valve unit 18 is provided for the purpose of achieving three switching positions (fig. 2, 3, 4), each of which corresponds to a defined rotational position of the of the rotatable insert part 28, the wiper fluid can be further fed in different directions or the further feeding can be completely prevented by means of the different switching positions.

The wiper blade device 10 has a fluid outlet unit 22 coupled to the valve unit 18, the fluid outlet unit 22 being provided for the selective discharge of fluid, in particular wiping fluid, in both wiping directions of the wiper blade 14, the fluid outlet unit 22 having a plurality of fluid duct elements 24, each having a fluid outlet opening 26 for the discharge of fluid, the fluid outlet unit 22 having, for example, 6 fluid duct elements 24, the fluid outlet opening 26 being provided for the selective discharge of wiping fluid in both wiping directions of the wiper blade 14, it is basically conceivable that the fluid outlet opening 26 is provided with nozzles, which are provided for the selective discharge of fluid, the fluid duct elements 24 being brought into the second housing 42, the fluid duct elements 24 being formed by channels in the second housing 42, the second housing 42 directly delimiting the fluid duct elements 24, the fluid duct elements 24 being formed with the second housing 42 , as a result of which a high fluid tightness of the fluid duct elements 24 is advantageously achieved, the second housing 42 is also designed directly with the fluid outlet opening 26, but it is also possible in principle to design a plurality of fluid duct elements 24 for the fluid outlet elements 3652 being provided for the fluid outlet elements 52, in particular for the fluid outlet elements 3652 being provided in the direction of the second housing 3652.

The side opening 30 at least partially overlaps the fluid conduit element 24 of the fluid outlet unit 22 in at least valve positions, the second side opening 30 'overlaps the fluid conduit element 24 in the fluid outlet valve position, the third side opening 30 "overlaps the second fluid conduit element 24 in the second fluid outlet valve position, the flow of the wiping fluid is enabled by the overlap of the

side openings

30, 30', 30" of the rotatable insert 28 with the fluid conduit element 24.

In the -th fluid outlet valve position of the rotatable insert 28 of the valve unit 18, the fluid outlet opening 26 is operated on the side of the wiper blade 14 facing away from the driving direction the -th fluid outlet valve position is shown in fig. 2 in the second fluid outlet valve position of the rotatable insert 28 of the valve unit 18, the fluid outlet opening 26 is operated on the side of the wiper blade 14 facing in the driving direction the second fluid outlet valve position is shown in fig. 3 a third switching position of the rotatable insert 28 of the valve unit 18 prevents any fluid flow through the valve unit 18, the third switching position is shown in fig. 4 the third switching position is configured as a fluid flow blocking valve position.

In each of the switching positions shown in fig. 2 to 4, the overlap or the missing overlap of the side opening 30 of the rotatable insert 28 with the opening of the fluid line element 24 is indicated by an arrow (fluid flow) and/or a cross (fluid flow resistance). fig. 4 shows that a complete interruption of the fluid flow is achieved by disabling the fluid channel 20 from introducing wiping fluid into the rotatable insert 28. in the third switching position, the -th side opening 30 is blocked.

Claims

1. Wiper blade device (10) for connection to at least wiper arms (12), having a wiper blade (14), at least wiper blade adapters (16), at least 0 valve units (18) arranged in the wiper blade adapters (16), to which at least valve units fluid, in particular wiping fluid, is supplied via exactly fluid channels (20), and at least fluid outlet units (22) coupled to the valve units (18), which at least fluid outlet units comprise in particular at least fluid duct elements (24), which at least fluid duct elements have at least fluid outlet openings (26) for fluid outlet and which at least fluid outlet units are provided for the targeted outlet of fluid, in particular wiping fluid, in both wiping directions of the wiper blade (14),

characterized in that the valve unit (18) comprises a rotatable insert (28) which is provided for achieving at least two valve positions for the fluid output.

2. Wiper blade device (10) according to claim 1, characterized in that the rotatable insert (28) is constructed in one piece.

3. Wiper blade device (10) according to claim 1 or 2, characterized in that the rotatable insert (28) has at least side openings (30, 30', 30 "), the at least side openings at least partially having a bridge with a fluid duct element (24) of the fluid outlet unit (22) in at least valve positions.

4. Wiper blade device (10) according to any of the preceding claims, characterized in that the rotatable insert (28) of the valve unit (18) is provided for achieving at least three switching positions, wherein each of the switching positions corresponds to a defined rotational position of of the rotatable insert (28).

5. Wiper blade device (10) according to any of the preceding claims, characterized by at least spring units (32) for supporting the rotation of the rotatable insert (28).

6. Wiper blade device (10) according to any of the preceding claims, characterized by an electric drive (34) arranged in the wiper blade adapter (16), which electric drive is provided for turning a rotatable insert (28) of the valve unit (18).

7. Wiper blade device (10) according to claim 6, characterized in that the electric drive (34) has at least insertion grooves (36) for receiving side pins (38) of the wiper arm (12) for supplying energy.

8. Wiper blade device (10) according to claim 6 or 7, characterized in that the wiper blade adapter (16) has at least of a housing (40) for receiving the electric drive (34) and at least of a second housing (42) separate from the housing (40) for guiding the rotatable insert (28).

9. Wiper blade device (10) according to claim 8, characterized in that the at least fluid duct elements (24) are configured in one piece with the second housing (42) .

10. Wiper device with a wiper blade device (10) according to any of the preceding claims and with a wiper arm (12) having a wiper arm adapter (44) for coupling with the wiper blade device (10), characterized in that the wiper arm adapter (44) has at least side pins (38) for supplying energy to the wiper blade device (10).