JP6853161B2 - Shaft member of wheel fixture and wheel fixture - Google Patents

Description

The present invention relates to a wheel fitting for mounting a wheel on a frame of a small vehicle including a bicycle and a shaft member of the wheel fitting.

Bicycles equipped with electric components such as electric transmissions have been conventionally known. For example, in the bicycle disclosed in Patent Document 1, a power source for supplying electric power to the electric transmission is attached to a frame or a chain stay.

Japanese Unexamined Patent Publication No. 2016-16591

In the bicycle of Patent Document 1, since electric parts such as a power supply that supplies electric power to the electric transmission are attached to the outer circumference of the frame and the chain stay, if the electric parts such as the power supply are enlarged, the appearance of the bicycle may be affected. There is. Further, in order to protect the electric parts from impact, dust, water and the like, it is necessary to cover the electric parts with a housing or the like.

An object of the present invention is to simplify the connection of electric components of a bicycle so that the appearance of the bicycle can be improved. Another object of the present invention is to secure an area for arranging an electric component such as an additional power source even when the electric component such as a power source is attached to the frame or the chain stay. Another object of the present invention is to protect the electric parts of the bicycle from impact, dust, water and the like.

(1) The shaft member of the wheel fitting according to one aspect of the present invention is a shaft member of the wheel fitting for mounting a wheel on a frame of a small vehicle including a bicycle, and includes a main body and a connector. ing. The connector is provided on the main body so as to be electrically connected to the component provided on the small vehicle.

In the shaft member of this wheel fitting, a connector that can be electrically connected to a component provided in a small vehicle is provided in the main body, so that the connection of electric parts of the bicycle is simplified. For example, the appearance of the bicycle can be improved by storing the electric component inside the shaft member and connecting it to an external device by a connector.

(2) Preferably, the main body portion is configured to be hollow, and further includes a power storage unit arranged in the hollow internal space of the main body portion. Even in this case, the connection of the electric parts of the bicycle can be simplified and the appearance of the bicycle can be improved. In addition, it is possible to secure an area for arranging the power storage unit on the shaft member, and it is possible to protect the power storage unit by the shaft member.

(3) The shaft member of the wheel fitting according to the other side surface of the present invention is a shaft member of the wheel fitting for mounting a wheel on a frame of a small vehicle including a bicycle, and at least a part of the shaft member is hollow. And a power storage unit arranged in the internal space of the main body unit.

In the shaft member of the wheel fitting, since the power storage unit can be built in the shaft member, the connection of the electric parts of the bicycle is simplified and the appearance is improved, and the power storage unit can be protected by the shaft member.

(4) Preferably, a connector that can be electrically connected to a component provided in a small vehicle is further provided. In this case, the connection of the electric parts of the bicycle becomes simpler.

(5) Preferably, the connector electrically connects the power storage unit and the component provided in the small vehicle. In this case, the connection of the electric component of the bicycle is further simplified.

(6) Preferably, the power storage unit supplies electric power to at least one of the components provided in the small vehicle. In this case, the connection of the electric parts of the bicycle becomes simpler.

(7) Preferably, the component includes an electrically controllable transmission and the power storage unit supplies power to the transmission. For bicycles including transmissions, the connection of bicycle electrical components is simplified.

(8) Preferably, the transmission includes at least one of an electrically controllable rear derailleur and an electrically controllable front derailleur, and the power storage unit supplies electric power to at least one of the rear derailleur and the front derailleur. In this case, the connection of the electric components around the rear derailleur or the front derailleur becomes simple.

(9) Preferably, the power storage unit includes at least one of a battery and a capacitor.

(10) Preferably, the power storage unit includes both a battery and a capacitor. In this case, the magnitude of the output power (at least one of the voltage and the current) and the amount of electricity stored can be compatible with each other.

(11) Preferably, a charging port for charging the power storage unit by an external power source is further provided. In this case, the power storage unit can be easily charged.

(12) The wheel attachment according to one aspect of the present invention is a wheel attachment for attaching wheels to a frame of a small vehicle including a bicycle, and the shaft member and the main body described in any of the above are attached to the frame. It is equipped with a fixing mechanism for fixing. This wheel fixture simplifies the connection of electrical components on the bicycle and improves its appearance.

(13) The wheel attachment according to another side surface of the present invention is a wheel attachment for attaching wheels to the frame of a small vehicle including a bicycle, and the shaft member supporting the wheels and the shaft member are fixed to the frame. It is equipped with a fixing mechanism to be used and a connector that is electrically connected to a component provided in a small vehicle. This wheel mount simplifies the connection of electrical components on the bicycle.

(14) Preferably, it further includes a wireless communication unit that receives a signal from a component or other external device provided in a small vehicle. In this case, the connection of the electric parts of the bicycle becomes simpler.

(15) The wheel attachment according to another aspect of the present invention is a wheel attachment for attaching wheels to the frame of a small vehicle including a bicycle, and the shaft member supporting the wheels and the shaft member are fixed to the frame. It is provided with a fixing mechanism for receiving signals from a component or other external device provided in a small vehicle. This wheel fixture simplifies the connection of electrical components on the bicycle and improves its appearance.

(16) Preferably, the wireless communication unit is configured to be able to send and receive signals to and from components or other external devices.

(17) Preferably, the component includes an electrically controllable rear derailleur, and the wireless communication unit receives a signal from a first derailleur operating unit capable of shifting the rear derailleur.

(18) Preferably, the component includes an electrically controllable front derailleur, and the wireless communication unit receives a signal from a second derailleur operating unit capable of shifting the front derailleur.

(19) Preferably, the shaft member has a first end portion whose axial movement with respect to the frame is restricted, and a second end portion located on the opposite side of the first end portion. The fixing mechanism is provided on the head member arranged on the second end side of the shaft member and rotatably around the axis intersecting the axial direction, and the head member is pivoted in response to the rotation. It has a lever member that moves in a direction. The wireless communication unit is provided so as to be integrally movable with one of the lever member and the head member.

(20) Preferably, a control board for controlling an electric component of a small vehicle is further provided. In this case, the connection of the electric parts of the bicycle becomes simpler.

(21) Preferably, the shaft member has a first end portion in which movement in the axial direction with respect to the frame is restricted, and a second end portion located on the side opposite to the first end portion. The fixing mechanism is provided on the head member arranged on the second end side of the shaft member and rotatably around the axis intersecting the axial direction, and the head member is pivoted in response to the rotation. It has a lever member that moves in a direction. The wireless communication unit is provided so as to be integrally movable with one of the lever member and the head member.

(22) Preferably, a control board for controlling an electric component of a small vehicle is further provided. In this case, the connection of the electric parts of the bicycle becomes simpler.

(23) Preferably, the shaft member has a first end portion whose axial movement with respect to the frame is restricted, and a second end portion located on the opposite side of the first end portion. The fixing mechanism is provided on the head member arranged on the second end side of the shaft member and rotatably around the axis intersecting the axial direction, and the head member is pivoted in response to the rotation. It has a lever member that moves in a direction.

(24) Preferably, an adjusting member for adjusting the axial position of the head member is further provided. In this case, the axial position of the head member can be easily adjusted.

In the present invention as described above, it is possible to simplify the connection of the electric parts of the bicycle and to improve the appearance of the bicycle. In addition, the electric parts of the bicycle can be protected from impact, dust, water and the like.

A side view of a bicycle in which one embodiment of the present invention is adopted. Sectional view of the wheel fixture, including the frame. A block diagram showing the electrical connections of bicycle parts. External view of the wheel fixture. The cross-sectional view when the lever member is arranged in the 2nd position. Sectional drawing around the head member. The figure corresponding to FIG. 2 which concerns on another embodiment.

FIG. 1 is a side view of a bicycle 100 in which one embodiment of the present invention is adopted. The bicycle 100 mainly includes a vehicle body 10, front wheels 12, rear wheels 14, a drive unit 16, an operating device 18, and a wheel attachment 20 (see FIG. 2). In the following description, the direction in which the central axis C2 (see FIG. 2) of the shaft member 42 extends will be described as the axial direction, and the direction orthogonal to the central axis C2 will be described as the radial direction.

The vehicle body 10 includes a diamond-shaped frame 22. As shown in FIG. 2, the frame 22 has a first rear end 22a and a second rear end 22b. Note that FIG. 2 is a cross-sectional view of the wheel fixture 20 including the frame 22.

The first rear end 22a has a first through hole 22c that penetrates in the axial direction. The first through hole 22c is a screw hole in which a female screw is formed on the inner peripheral surface. The second rear end 22b is arranged at an axial distance from the first rear end 22a. The second rear end 22b has a second through hole 22d that penetrates in the axial direction.

The front wheels 12 and the rear wheels 14 are rotatably mounted on the frame 22.

The drive unit 16 includes a crank assembly 24 including a plurality of front sprockets 26, a plurality of rear sprockets 28, a chain 30, and an electrically controllable transmission 32. The chain 30 meshes with the plurality of front sprockets 26 and the plurality of rear sprockets 28.

The transmission 32 includes at least one of an electrically controllable rear derailleur 32a and an electrically controllable front derailleur 32b. In this embodiment, the transmission 32 includes both an electrically controllable rear derailleur 32a and an electrically controllable front derailleur 32b, as shown in FIGS. 1 and 3. The rear derailleur 32a and the front derailleur 32b are examples of components provided in a small vehicle including the bicycle 100.

The rear derailleur 32a changes the gear ratio of the bicycle 100 by replacing the chains 30 that mesh with the plurality of rear sprockets 28 in response to the operation of the operating device 18.

The front derailleur 32b changes the gear ratio of the bicycle 100 by replacing the chains 30 that mesh with the plurality of front sprockets 26 according to the operation of the operating device 18.

As shown in FIG. 1, the operating device 18 is attached to the handlebar 34 of the bicycle 100. As shown in FIG. 3, the operating device 18 includes a first shifting operating unit 18a and a second shifting operating unit 18b. Electric power is supplied to the operating device 18 by a battery (not shown) or the like. The first shifting operation unit 18a can shift the rear derailleur 32a. The second shifting operation unit 18b can shift the front derailleur 32b. Specifically, the operating device 18 is configured to be capable of transmitting a radio signal according to the operation of the first shifting operating unit 18a or the second shifting operating unit 18b. In the present embodiment, the operating device 18 wirelessly transmits an electric signal corresponding to the operation of the first shifting operation unit 18a or the second shifting operation unit 18b to the wireless communication unit 46 described later.

The wheel attachment 20 is an attachment for attaching wheels to the frame of a small vehicle including the bicycle 100. In the present embodiment, the rear wheel 14 is attached to the frame 22 of the bicycle 100 by the wheel attachment 20. Specifically, the wheel attachment 20 attaches the rear hub 38 provided on the rear wheel 14 of the bicycle 100 to the frame 22.

As shown in FIG. 2, the rear hub 38 has a hub shaft 38a and a hub shell 38b. The hub shaft 38a is a hollow shaft member. The hub shaft 38a is detachably fixed to the first rear end 22a and the second rear end 22b of the frame 22 by the wheel attachment 20. Specifically, the hub shaft 38a has a first end (right end in FIG. 2) of the hub shaft 38a in contact with the first rear end 22a and a second end (left end in FIG. 2) in contact with the second rear end 22b. The hub shell 38b is rotatably mounted on the hub shaft 38a. The first rear end 22a is provided with a derailleur hanger 23 for attaching the rear derailleur 32a to the frame 22.

FIG. 4 is an external view of the wheel fixture 20. As shown in FIGS. 2 and 4, the wheel fixture 20 includes a shaft member 42 and a fixing mechanism 44.

The shaft member 42 supports the wheel. In this embodiment, the shaft member 42 supports the rear wheel 14. Specifically, the shaft member 42 is arranged so as to insert the hub shaft 38a in the axial direction and supports the rear hub 38. The shaft member 42 has a first end portion 42a, a second end portion 42b located on the opposite side of the first end portion 42a, a main body portion 42c, a connector 42d, and a power storage portion 42e.

The first end portion 42a is restricted from moving in the axial direction with respect to the frame 22. Specifically, a male screw is formed on the outer peripheral surface of the first end portion 42a, and this male screw is screwed with the female screw of the first through hole 22c of the first rear end 22a.

The main body portion 42c extends in the axial direction and connects the first end portion 42a and the second end portion 42b. The main body portion 42c has a hollow internal space 42f configured to be hollow.

The connector 42d is provided on the main body 42c. Specifically, the connector 42d is provided in the hollow internal space 42f of the main body portion 42c. The connector 42d can be electrically connected to a component provided in a small vehicle. Further, the connector 42d electrically connects the component provided in the small vehicle and the power storage unit 42e. In the present embodiment, as shown in FIG. 3, the connector 42d electrically connects the rear derailleur 32a and the power storage unit 42e. Further, the connector 42d electrically connects the front derailleur 32b and the power storage unit 42e. The connector 42d is provided on the side of the first end portion 42a in which a male screw is formed on the outer peripheral surface. The connector 42d is provided on the side of the first rear end 22a where the derailleur hanger 23 of the rear derailleur 32a is located.

The connector 42d has a connection portion 43 for connecting to the connection cable 50. The connection unit 43 is connected to one end side of the connection cable 50 and is electrically connected to the power storage unit 42e. The other end of the connection cable 50 is electrically connected to a component provided in a small vehicle. The end surface of the shaft member 42 on the first end portion 42a side is covered with a cover member (not shown) except for a portion through which the connection cable 50 is inserted.

The power storage unit 42e is arranged in the hollow internal space 42f of the main body unit 42c. The power storage unit 42e includes at least one of the battery 42g and the capacitor 42h. In this embodiment, both the battery 42g and the capacitor 42h are included, and a plurality of capacitors 42h are provided. The battery 42g may be, for example, a rechargeable battery or a dry battery. The output voltage of the capacitor 42h and the output voltage of the battery 42g are different. In this embodiment, the output voltage of the capacitor 42h is larger than the output voltage of the battery 42g. Further, the storage capacity of the battery 42g and the storage capacity of the capacitor 42h are different. In the present embodiment, the storage capacity of the battery 42g is larger than the storage capacity of the capacitor 42h. The power storage unit 42e supplies electric power to at least one of the components provided in the small vehicle. Specifically, the power storage unit 42e supplies power to at least one of the rear derailleur 32a and the front derailleur 32b. In the present embodiment, the power storage unit 42e supplies electric power to both the rear derailleur 32a and the front derailleur 32b.

Here, since the power storage unit 42e is arranged in the hollow internal space 42f of the shaft member 42, the power storage unit 42e can be protected by the shaft member 42. Further, since the rear derailleur 32a and the power storage unit 42e are electrically connected by the connector 42d, the connection around the rear derailleur 32a is simplified.

As shown in an enlarged manner in FIGS. 2 and 5, the fixing mechanism 44 includes a head member 52, a lever member 54, a connecting member 56, and an adjusting member 58. The shaft member 42 is fixed to the frame 22 by the fixing mechanism 44.

The head member 52 is arranged on the second end portion 42b side of the shaft member 42. The head member 52 has a bottomed tubular shape and has an accommodating portion 52a and a male screw portion 52b. The accommodating portion 52a is provided on the inner peripheral portion of the head member 52 in a non-circular shape. The male screw portion 52b is provided on the outer peripheral surface close to the second end portion 42b of the shaft member 42.

The lever member 54 is provided on the head member 52 so as to be rotatable around an axial center intersecting the axial direction. The lever member 54 is rotatable between the first position shown by the solid line in FIG. 2 and the second position shown by the alternate long and short dash line. The head member 52 moves in the axial direction according to the rotation of the lever member 54. The first position corresponds to the final fixing position of the fixing mechanism 44. When the lever member 54 is in the first position, the axial position of the head member 52 is closest to the shaft member 42.

As shown in FIG. 6, the lever member 54 is supported by a rotating shaft 60 that penetrates the head member 52 in a direction intersecting the axial direction. The lever member 54 rotates integrally with the rotation shaft 60 around the axis C1 of the rotation shaft 60. The rotating shaft 60 is rotatably supported by the head member 52. The rotating shaft 60 has a cam portion 60a eccentric from the central axis C1 of the rotating shaft 60.

The connecting member 56 connects the shaft member 42 and the head member 52 so as to be integrally rotatable around the central axis C2 of the shaft member 42. As shown in FIG. 5, the connecting member 56 has a support portion 56a and an extension portion 56b. The support portion 56a has a non-circular outer shape and is non-rotatably accommodated in the accommodating portion 52a with respect to the head member 52. The support portion 56a has a cam hole 56c through which the rotation shaft 60 penetrates. The cam hole 56c is an oval hole with which the cam portion 60a of the rotating shaft 60 is engaged. The cam hole 56c of the connecting member 56 and the cam portion 60a of the rotating shaft 60 allow the head member 52 to move in the axial direction in accordance with the rotation of the lever member 54.

As shown in FIG. 5, the stretched portion 56b extends axially from the support portion 56a toward the shaft member 42, and a part thereof is housed in the inner peripheral portion of the shaft member 42. The stretched portion 56b has a male screw portion 56d on the outer peripheral surface of the tip. The male threaded portion 56d is screwed with the female threaded portion 42i formed on the inner peripheral portion on the first end portion 42a side of the shaft member 42. Further, the stretched portion 56b is prevented from rotating by a set screw 62 screwed from the outer peripheral portion of the shaft member 42. As a result, the stretched portion 56b and the shaft member 42 are integrally rotatably connected. That is, the shaft member 42 and the head member 52 rotate integrally via the connecting member 56.

The adjusting member 58 is a tubular member. As shown in FIGS. 5 and 6, the adjusting member 58 has a female screw portion 58a and a contact portion 58b. The female threaded portion 58a is formed on the inner peripheral surface of the adjusting member 58 and is screwed with the male threaded portion 52b of the head member 52. As a result, when the adjusting member 58 is rotated, the adjusting member 58 moves in the axial direction with respect to the head member 52. The position of the adjusting member 58 is positioned in the axial direction by a positioning mechanism 64 (see FIG. 6) arranged between the adjusting member 58 and the head member 52 in the radial direction.

As shown in FIG. 5, the contact portion 58b is provided on the end surface of the adjusting member 58 facing the second rear end 22b, and can come into contact with the outer surface 22e of the second rear end 22b.

When fixing the shaft member 42 to the frame 22 by the fixing mechanism 44, first, the hub shaft 38a of the rear hub 38 is arranged at a position overlapping the first through hole 22c and the second through hole 22d in the axial direction. .. Then, the first end portion 42a of the shaft member 42 is inserted from the second through hole 22d of the second rear end 22b toward the first through hole 22c of the first rear end 22a. Next, the first end portion 42a of the shaft member 42 is screwed into the first through hole 22c of the first rear end 22a. Next, the contact portion 58b of the adjusting member 58 is brought into contact with the outer surface 22e of the second rear end 22b. Then, by rotating the lever member 54 from the second position to the first position, the shaft member 42 is fixed to the frame 22.

If the lever member 54 is not in the optimum position with respect to the frame 22 when the lever member 54 is rotated from the second position to the first position, it is necessary to adjust the position of the lever member 54. Specifically, first, the lever member 54 is returned to the second position. Then, the shaft member 42 is rotated in the direction in which the screw is loosened to adjust the position of the lever member 54. After that, the contact portion 58b of the adjusting member 58 is brought into contact with the outer surface 22e of the second rear end 22b again, and the lever member 54 is rotated from the second position to the first position. Here, the position of the lever member 54 with respect to the frame 22 can be easily adjusted by the adjusting member 58.

As shown in FIG. 4, the wheel attachment 20 further includes a wireless communication unit 46 and a control board 48. Note that in FIGS. 2 and 5, the wireless communication unit 46 and the control board 48 are omitted.

The wireless communication unit 46 is provided so as to be integrally movable with one of the lever member 54 and the head member 52. In the present embodiment, the head member 52 is provided so as to be integrally movable. Specifically, the wireless communication unit 46 is housed inside a housing 68 provided on the outer peripheral portion of the head member 52. The housing 68 is integrally rotatably fixed to the head member 52 by adhesion to the head member 52 or by fixing means such as screws.

The housing 68 is provided at a position facing the lever member 54 in the axial direction when the lever member 54 is in the first position. A charging port 72 that can be connected to the external power supply 70 is provided inside the housing 68. Charging of the power storage unit 42e is performed from the external power source 70 via the charging port 72. Although the charging port 72 is connected to the power storage unit 42e via the control board 48 in FIGS. 3 and 4, the charging port 72 and the power storage unit 42e may be connected without the control board 48. Good.

The wireless communication unit 46 receives a signal from a component or other external device provided in a small vehicle. Further, the wireless communication unit 46 is configured to be able to transmit and receive signals to a component provided in a small vehicle or another external device. In the present embodiment, the wireless communication unit 46 receives signals from the first gear shifting operation unit 18a and the second gear shifting operation unit 18b. Power is supplied to the wireless communication unit 46 from the power storage unit 42e.

The control board 48 is provided so as to be integrally movable with one of the lever member 54 and the head member 52. In the present embodiment, the control board 48 is housed inside the housing 68, and is provided so as to be integrally movable with the head member 52. The control board 48 is electrically connected to the power storage unit 42e, and controls the electric component of the small vehicle by the electric power supplied from the power storage unit 42e. In the present embodiment, the control board 48 controls the rear derailleur 32a and the front derailleur 32b by the electric power supplied from the power storage unit 42e.

As shown in FIG. 4, the control board 48 is electrically connected to the power storage unit 42e by the connection cable 49. The connection cable 49 penetrates the head member 52 and is inserted from the inner peripheral portion of the head member 52 to the hollow internal space 42f of the shaft member 42. The connection cable 49 may be inserted into the hollow internal space 42f of the shaft member 42 without penetrating the head member 52.

The control board 48 is electrically connected to the wireless communication unit 46. For example, when the first shifting operation unit 18a is operated, the wireless communication unit 46 receives the signal from the first shifting operation unit 18a. The control board 48 controls the rear derailleur 32a based on the signal received by the wireless communication unit 46. That is, the rear derailleur 32a replaces the chains 30 that mesh with the plurality of rear sprockets 28, and the gear ratio of the bicycle 100 is changed.

The control board 48 may be controlled to send a shift signal to the transmission 32 that can be automatically and electrically controlled. That is, as shown in FIG. 3, an information acquisition unit 76 for acquiring information on at least one of vehicle speed, cadence, torque, and power is separately provided, and a transmission is provided based on the information acquired by the information acquisition unit 76. 32 may be controlled. In this case, it may be configured so that it can be arbitrarily selected whether or not to control the transmission 32 based on which of the operating device 18 and the information acquisition unit 76. The information acquisition unit 76 is housed inside the housing 68, for example, and is electrically connected to the control board 48.

Further, a power storage unit 51 different from the power storage unit 42e may be additionally provided on at least one of the lever member 54 and the head member 52. For example, as shown in FIG. 4, the power storage unit 51 may be provided inside the housing 68.

<Other Embodiments>
Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the gist of the invention. In particular, the plurality of embodiments and modifications described herein can be arbitrarily combined as required.

(A) In the above embodiment, the male screw of the first end portion 42a of the shaft member 42 is screwed into the female screw of the first through hole 22c of the first rear end 22a. The male screw of the first end portion 42a of the shaft member 42 may be screwed into the locking member 74 such as. In this case, at least one of the control board 48, the wireless communication unit 46, and the additional power storage unit 51 may be provided on the locking member 74. At this time, at least one of the control board 48, the wireless communication unit 46, and the additional power storage unit 51 provided on the locking member 74 is a contact provided on the inner peripheral side of the locking member 74 and the outer peripheral side of the shaft member 42. It may be electrically connected to the connector 42d by the contact provided in.

(B) In the above embodiment, the rear derailleur 32a and the front derailleur 32b have been exemplified as examples of the components provided in the small vehicle, but the present invention is not limited thereto. For example, electric internal transmissions, electric seatposts, electric suspensions, lights, dynamos, electric braking devices, power meters, electric parts such as power supplies attached to frames, and drive units that assist human-powered driving force are also provided in small vehicles. It is an example of the component to be used.

(C) In the above embodiment, the wireless communication unit 46 is configured to receive signals from the first speed change operation unit 18a and the second speed change operation unit 18b, but the present invention is not limited thereto. It may be configured to receive signals from other components provided in a small vehicle or from external devices such as personal computers, tablet computers, and smartphones.

(D) In the above embodiment, the rear wheel 14 is attached to the frame 22 of the bicycle 100 by the wheel attachment 20, but the present invention can also be applied when the front wheel 12 is attached to the frame 22 of the bicycle 100.

(E) In the above embodiment, the wheel attachment 20 penetrating the through holes 22c and 22d of the frame 22 is disclosed, but the present invention is not limited thereto. The present invention can also be applied to a wheel fixture mounted in a groove provided in the frame 22.

(F) In the above embodiment, the control board 48 and the wireless communication unit 46 are provided integrally with the head member 52 so as to be movable, but the control board 48 and the wireless communication unit 46 are provided in the hollow internal space 42f of the shaft member 42. May be good.

(G) The connector 42d may also have a configuration that also serves as a charging port. That is, the power storage unit 42e may be configured to be rechargeable from the connector 42d.

18a 1st transmission operation unit 18b 2nd transmission operation unit 20 Wheel attachment 22 Frame 32 Transmission 32a Rear derailleur 32b Front derailleur 42 Shaft member 42a 1st end 42b 2nd end 42c Main body 42d Connector 42e Power storage 42g Battery 42h Capacitor 42f Hollow internal space 44 Fixing mechanism 46 Wireless communication unit 48 Control board 52 Head member 54 Lever member 58 Adjusting member 72 Charging port 100 Bicycle

Claims (24)

A shaft member of a wheel fixture for attaching wheels to the frame of a small vehicle including a bicycle.
With the main body
With a connector provided on the main body so that it can be electrically connected to a component provided on the small vehicle.
The power storage unit built into the shaft member and
A shaft member of a wheel fixture. A shaft member of a wheel fixture for attaching wheels to the frame of a small vehicle including a bicycle.
At least partly hollow body and
A power storage unit arranged in the hollow internal space of the main body,
A shaft member of a wheel fixture. The shaft member according to claim 2 , further comprising a connector that can be electrically connected to a component provided in the small vehicle. The connector electrically connects the power storage unit and the component provided in the small vehicle.
The shaft member according to claim 1 or 3. The power storage unit supplies electric power to at least one of the components provided in the small vehicle.
The shaft member according to any one of claims 1 to 4. The components include electrically controllable transmissions.
The power storage unit supplies electric power to the transmission.
The shaft member according to claim 5. The transmission includes at least one of an electrically controllable rear derailleur and an electrically controllable front derailleur.
The power storage unit supplies electric power to at least one of the rear derailleur and the front derailleur.
The shaft member according to claim 6. The power storage unit includes at least one of a battery and a capacitor.
The shaft member according to any one of claims 1 to 7. The power storage unit includes both a battery and a capacitor.
The shaft member according to claim 8. A charging port for charging the power storage unit with an external power source is further provided.
The shaft member according to any one of claims 1 to 9. A wheel fixture for attaching wheels to the frame of small vehicles including bicycles.
The shaft member according to any one of claims 1 to 10 and
A fixing mechanism for fixing the main body to the frame,
A wheel fixture. A wheel fixture for attaching wheels to the frame of small vehicles including bicycles.
The shaft member that supports the wheel and
The power storage unit built into the shaft member and
A fixing mechanism for fixing the shaft member to the frame,
A connector that is electrically connected to a component provided in the small vehicle,
A wheel fixture. A wireless communication unit that receives signals from components or other external devices provided in the small vehicle.
The wheel attachment according to claim 11 or 12 , further comprising. A wheel fixture for attaching wheels to the frame of small vehicles including bicycles.
The shaft member that supports the wheel and
A fixing mechanism for fixing the shaft member to the frame,
A wireless communication unit that receives signals from components or other external devices provided in the small vehicle.
A wheel fixture. The wireless communication unit is configured to be capable of transmitting and receiving signals to and from the component or the other external device.
The wheel fixture according to claim 13 or 14. The components include an electrically controllable rear derailleur.
The wireless communication unit receives a signal from the first shifting operation unit capable of shifting the rear derailleur.
The wheel fixture according to any one of claims 13 to 15. The components include an electrically controllable front derailleur.
The wireless communication unit receives a signal from a second shifting operation unit capable of shifting the front derailleur.
The wheel fixture according to any one of claims 13 to 16. The shaft member has a first end portion whose axial movement with respect to the frame is restricted, and a second end portion located on the opposite side of the first end portion.
The fixing mechanism is provided on the head member rotatably around the axis intersecting the axial direction with the head member arranged on the second end side of the shaft member, and the head member responds to the rotation. It has a lever member that moves the member in the axial direction, and
The wireless communication unit is provided so as to be integrally movable with one of the lever member and the head member.
The wheel fixture according to any one of claims 13 to 17. A control board for controlling the electric components of the small vehicle is further provided.
The wheel fixture according to any one of claims 13 to 18. The shaft member has a first end portion whose axial movement with respect to the frame is restricted, and a second end portion located on the opposite side of the first end portion.
The fixing mechanism is provided on the head member rotatably around the axis intersecting the axial direction with the head member arranged on the second end side of the shaft member, and the head member responds to the rotation. It has a lever member that moves the member in the axial direction, and
The control board is provided so as to be integrally movable with one of the lever member and the head member.
The wheel fixture according to claim 19. A control board for controlling the electric components of the small vehicle is further provided.
The wheel fixture according to claim 11 or 12. A wheel fixture for attaching wheels to the frame of small vehicles including bicycles.
The shaft member that supports the wheel and
A fixing mechanism for fixing the shaft member to the frame,
A control board that controls the electric components of the small vehicle,
A wheel fixture. The shaft member has a first end portion whose axial movement with respect to the frame is restricted, and a second end portion located on the opposite side of the first end portion.
The fixing mechanism is provided on the head member rotatably around the axis intersecting the axial direction with the head member arranged on the second end side of the shaft member, and the head member responds to the rotation. It has a lever member that moves the member in the axial direction, and has.
The wheel fixture according to any one of claims 11 to 22. 23. The wheel attachment according to claim 23, further comprising an adjusting member for adjusting the axial position of the head member.

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