JP6978387B2 - Hub for human-powered vehicles - Google Patents

Description

The present invention relates to a hub for a human-powered vehicle.

For example, in the hub for a human-powered vehicle disclosed in Patent Document 1, a one-way clutch is provided between the gear mounting portion and the hub body.

Japanese Unexamined Patent Publication No. 2005-75106

An object of the present invention is to provide a hub for a human-powered vehicle capable of suitably transmitting rotation.

The hub for a human-powered vehicle according to the first aspect of the present invention includes a hub shaft, a first member rotatably provided around the hub shaft, and the hub rotatably with respect to the hub shaft. A second member provided around the shaft, a one-way clutch for transmitting the rotation of the first member in the first rotation direction to the second member, and a one-way clutch rotatably provided around the hub shaft with respect to the hub shaft. A hub body connected to the second member, a convex portion provided on one of the second member and the hub body, and a convex portion provided on the other of the second member and the hub body so as to engage with the convex portion. A transmission mechanism that transmits the rotation of the second member to the hub body, and a transmission mechanism that restricts the movement of the second member with respect to the hub body in the axial direction of the hub shaft. Contains a regulating portion provided at a different portion, the hub body includes a first engaging portion that engages the restricting portion, and the first engaging portion is said to be in the axial direction of the hub shaft. It is provided on the side of the first member with respect to the transmission mechanism.
According to the hub for a human-powered vehicle on the first side surface, the rotation can be suitably transmitted from the second member to the hub body by the transmission mechanism. Further, since the first engaging portion is provided on the first member side of the transmission mechanism in the axial direction of the hub shaft, it is possible to suppress the complication of the structure on the transmission mechanism side of the first member.

In the hub for a human-powered vehicle on the second side surface according to the first side surface, the first engaging portion is provided outside the first member in the radial direction of the hub shaft.
According to the hub for a human-powered vehicle on the second side surface, since the engaging portion is provided outside the first member in the radial direction of the hub shaft, the complexity of the structure inside the first member is suppressed. can.

The hub for a human-powered vehicle according to the third aspect of the present invention includes a hub shaft, a first member rotatably provided around the hub shaft, and the hub rotatably with respect to the hub shaft. A second member provided around the shaft, a one-way clutch for transmitting the rotation of the first member in the first rotation direction to the second member, and a one-way clutch rotatably provided around the hub shaft with respect to the hub shaft. A hub body connected to the second member, a convex portion provided on one of the second member and the hub body, and a convex portion provided on the other of the second member and the hub body so as to engage with the convex portion. A transmission mechanism that transmits the rotation of the second member to the hub body, and a transmission mechanism that restricts the movement of the second member with respect to the hub body in the axial direction of the hub shaft. Contains a regulating portion provided at a different portion, the hub body includes a first engaging portion that engages the restricting portion, and the first engaging portion is said in the radial direction of the hub axle. It is provided outside the first member.
According to the hub for a human-powered vehicle on the third side surface, the rotation can be suitably transmitted from the second member to the hub body by the transmission mechanism. Further, since the first engaging portion is provided outside the first member in the radial direction of the hub shaft, it is possible to suppress the complication of the structure inside the first member.

In the hub for a human-powered vehicle on the fourth side surface according to the third side surface, the first engaging portion is provided on the first member side of the transmission mechanism in the axial direction of the hub shaft.
According to the hub for a human-powered vehicle on the fourth side surface, since the first engaging portion is provided on the first member side of the transmission mechanism in the axial direction of the hub shaft, it is closer to the transmission mechanism side than the first member. It is possible to suppress the complexity of the structure.

In the hub for a human-powered vehicle on the fifth side surface according to any one of the first to fourth sides, the hub body is arranged between the hub body and the hub shaft, and power is generated by the rotation of the hub body with respect to the hub shaft. The power generation mechanism and the one or more transmission mechanisms are included, and all of the one or more transmission mechanisms include the convex portion and the concave portion.
According to the hub for a human-powered vehicle on the fifth side surface, rotation can be suitably transmitted by the convex portion and the concave portion between all the members from the second member to the hub body. When the rotation is transmitted by the convex portion and the concave portion, the relative rotation between the second member and the hub body can be less likely to occur as compared with the case where the rotation is transmitted by the screw.

The hub for a human-powered vehicle according to the sixth aspect of the present invention includes a hub shaft, a first member rotatably provided around the hub shaft, and the hub rotatably with respect to the hub shaft. A second member provided around the shaft, a one-way clutch for transmitting the rotation of the first member in the first rotation direction to the second member, and a one-way clutch rotatably provided around the hub shaft with respect to the hub shaft. A hub body connected to the second member, a convex portion provided on one of the second member and the hub body so as to extend in the axial direction of the hub shaft, and the convex portion extending in the axial direction of the hub shaft. One or more transmission mechanisms that are provided with a recess provided on the other side of the second member and the hub body so as to engage with the portion, and transmit the rotation of the second member to the hub body, and the hub body. And the hub shaft, including a power generation mechanism that generates power by rotation of the hub body with respect to the hub shaft, all of the one or more transmission mechanisms include the convex portion, the concave portion, and the concave portion. including.
According to the hub for a human-powered vehicle on the sixth side surface, rotation can be suitably transmitted by the convex portion and the concave portion between all the members from the second member to the hub body.

In the hub for a human-powered vehicle on the seventh side surface according to the sixth side surface, a regulating portion provided at a portion different from the transmission mechanism and restricting the movement of the second member with respect to the hub body in the axial direction of the hub shaft is provided. Further included, the hub body includes a first engaging portion that engages the restricting portion.
According to the hub for a human-powered vehicle on the seventh side surface, the first engaging portion can suitably regulate the movement of the second member with respect to the hub body in the axial direction of the hub shaft.

In the hub for a human-powered vehicle on the eighth side surface according to the seventh side surface, the first engaging portion is provided outside the first member in the radial direction of the hub shaft.
According to the hub for a human-powered vehicle on the eighth side surface, the first engaging portion is provided outside the first member in the radial direction of the hub shaft, so that the structure inside the first member is complicated. Can be suppressed.

In the hub for a human-powered vehicle on the ninth side surface according to the seventh or eighth side surface, the first engaging portion is provided on the first member side of the transmission mechanism in the axial direction of the hub shaft.
According to the hub for a human-powered vehicle on the ninth side surface, since the first engaging portion is provided on the first member side of the transmission mechanism in the axial direction of the hub shaft, it is closer to the transmission mechanism side than the first member. It is possible to suppress the complexity of the structure.

In a hub for a human-powered vehicle on a tenth side according to any one of the first to fifth and seventh to ninth sides, the transmission mechanism and the first engaging portion are adjacent to each other in the axial direction of the hub shaft. Fit.
According to the hub for a human-powered vehicle on the tenth side surface, the movement of the second member with respect to the hub body in the axial direction of the hub shaft can be more preferably regulated by the regulating portion.

In the hub for a human-powered vehicle on the eleventh side surface according to any one of the first to fifth and seventh to tenth sides, the restricting portion is detachably connected to the second member and the hub body. ..
According to the hub for a human-powered vehicle on the eleventh side surface, the second member and the hub body can move relative to each other in the axial direction of the hub shaft by removing the regulating portion.

In the hub for a human-powered vehicle on the twelfth side surface according to any one of the first to fifth and seventh to eleventh sides, the restricting portion has a second engaging portion to be coupled to the first engaging portion. include.
According to the hub for a human-powered vehicle on the twelfth side surface, the regulation portion and the hub body can be suitably engaged by the first engaging portion and the second engaging portion.

In the hub for a human-powered vehicle on the thirteenth side surface according to the twelfth side surface, the first engaging portion includes a first screw portion, and the second engaging portion is a second screw that is coupled to the first screw portion. Including the part.
According to the hub for a human-powered vehicle on the thirteenth side surface, the regulation portion and the hub body can be suitably engaged with each other by the first screw portion and the second screw portion.

In the hub for a human-powered vehicle on the 14th side surface according to the 13th side surface, the restricting portion includes a first portion extending in a first direction intersecting the screwing direction of the second screw portion, and the hub body is the first portion. The second member includes a second portion protruding in one direction, and the second member is sandwiched between the first portion and the second portion so that the second member is axially oriented with respect to the hub body of the second member. Movement to is restricted.
According to the hub for a human-powered vehicle on the 14th side surface, the second member is sandwiched between the first portion of the regulation portion and the second portion of the hub body, so that the second member and the hub body in the axial direction of the hub shaft are sandwiched. Relative movement with and can be suitably regulated.

In the hub for a human-powered vehicle on the fifteenth side according to any one of the first to fifth and the seventh to the fourteenth sides, the restricting portion is a tool in a state of being attached to the second member and the hub body. A tool engaging portion that can be engaged with is provided.
According to the hub for a human-powered vehicle on the fifteenth side surface, the restriction on the movement of the second member and the hub body by the restricting portion can be released by engaging the tool with the tool engaging portion.

In a hub for a human-powered vehicle on the 16th side according to any one of the 1st to 5th and 7th to 15th sides, the hub body includes a flange portion to which the spokes of the wheel are attached, and the regulation portion is , At least a part of the flange portion overlaps with the flange portion in the axial direction of the hub shaft.
According to the hub for a human-powered vehicle on the 16th side surface, the movement of the second member with respect to the hub body in the axial direction of the hub shaft can be restricted in the portion where at least a part overlaps with the flange portion in the axial direction of the hub shaft.

In the hub for a human-powered vehicle on the 17th side surface according to the 16th side surface, the transmission mechanism is arranged on the side opposite to the first member with the flange portion interposed therebetween in the axial direction of the hub shaft.
According to the hub for a human-powered vehicle on the 17th side surface, the rotation of the second member can be transmitted to the hub body on the side opposite to the first member with the flange portion interposed therebetween in the axial direction of the hub shaft.

In the hub for a human-powered vehicle on the 18th side surface according to any one of the 1st to 17th side surfaces, the transmission mechanism is provided outside the first member in the radial direction of the hub shaft.
According to the hub for a human-powered vehicle on the 18th side surface, it is possible to suppress the complication of the structure inside the first member in the radial direction of the hub shaft. Further, as the transmission mechanism is on the outer side in the radial direction of the hub shaft, the diameter of the portion where the convex portion and the concave portion of the transmission mechanism are provided can be increased, so that the convex portion and the convex portion capable of suitably transmitting the rotation of the second member to the hub body. Easy to form recesses.

In the hub for a human-powered vehicle on the 19th side surface according to any one of the 1st to 18th side surfaces, a plurality of the convex portions and the concave portions are provided in the circumferential direction.
According to the hub for a human-powered vehicle on the 19th side surface, the rotation of the second member can be suitably transmitted to the hub body by the plurality of convex portions and the plurality of concave portions.

In the hub for a human-powered vehicle on the 20th side surface according to the 19th side surface, the convex portion and the concave portion are spline-fitted.
According to the hub for a human-powered vehicle on the 20th side surface, the rotation of the second member can be suitably transmitted to the hub body by spline fitting.

In the hub for a human-powered vehicle on the 21st side surface according to any one of the 1st to 20th side surfaces, the convex portion is formed integrally with one of the second member and the hub body.
According to the hub for a human-powered vehicle on the 21st side surface, it is possible to contribute to the reduction of the number of parts.

In the hub for a human-powered vehicle on the 22nd side surface according to any one of the first to 21st side surfaces, the recess is formed integrally with the other of the second member and the hub body.
According to the hub for a human-powered vehicle on the 22nd side surface, it is possible to contribute to the reduction of the number of parts.

In the hub for a human-powered vehicle on the 23rd side surface according to any one of the 1st to 22nd side surfaces, the hub body has an opening formed at the first end portion in the axial direction of the hub shaft, and the second side surface is formed. The member covers the opening.
According to the hub for a human-powered vehicle on the 23rd side surface, it is possible to prevent foreign matter from entering the inside of the hub body by the second member.

The hub for human-powered vehicles of the present disclosure is capable of suitably transmitting rotation.

The perspective view of the hub for a human-powered vehicle of an embodiment. The front view of the hub for a human-powered vehicle of FIG. FIG. 2 is a cross-sectional view taken along the line D3-D3 of FIG. The perspective view of the regulation part of FIG. The plan view of the hub for a human-powered vehicle in the state where the regulation part of FIG. 1 is removed.

(Embodiment)
The hub 10 for a human-powered vehicle according to an embodiment will be described with reference to FIGS. 1 to 5. The hub 10 for a human-powered vehicle is provided on the human-powered vehicle. A human-powered vehicle is a vehicle that can be driven by at least human-powered driving force. Human-powered vehicles include, for example, bicycles. The human-powered vehicle is not limited in the number of wheels, and includes, for example, a one-wheeled vehicle and a vehicle having three or more wheels. Human-powered vehicles include various types of bicycles such as mountain bikes, road bikes, city bikes, cargo bikes, and recumbents, as well as electrically power assisted bicycles (E-bikes). Hereinafter, in the embodiment, the human-powered vehicle will be described as a bicycle.

As shown in FIGS. 1 to 3, the hub 10 for a human-powered vehicle includes a hub shaft 12, a first member 14, a second member 16, a one-way clutch 18, a hub body 20, and a transmission mechanism 22. Including the regulation unit 24. The first member 14 is rotatably provided around the hub shaft 12 with respect to the hub shaft 12. The second member 16 is rotatably provided around the hub shaft 12 with respect to the hub shaft 12. The one-way clutch 18 transmits the rotation of the first member 14 in the first rotation direction A1 to the second member 16. The hub body 20 is rotatably provided around the hub shaft 12 with respect to the hub shaft 12, and is connected to the second member 16. The transmission mechanism 22 has a convex portion 26 provided on one of the second member 16 and the hub body 20, and a concave portion 28 provided on the other side of the second member 16 and the hub body 20 so as to engage with the convex portion 26. The rotation of the second member 16 is transmitted to the hub body 20. The restricting portion 24 is provided at a portion different from the transmission mechanism 22 so as to restrict the movement of the second member 16 with respect to the hub body 20 in the axial direction C of the hub shaft 12. The hub body 20 includes a first engaging portion 30 that engages with the regulating portion 24. The first engaging portion 30 is provided on the first member 14 side of the transmission mechanism 22 in the axial direction C of the hub shaft 12.

The hub axle 12 constitutes, for example, the axle of the rear wheel of a human-powered vehicle. The hub axle 12 is supported by the frame of a human-powered vehicle. The hub shaft 12 is preferably a hollow shaft. Each of the first end portion 12A and the second end portion 12B in the axial direction C of the hub shaft 12 is provided with a mounting portion 12C for mounting the hub shaft 12 to the frame. The hub axle 12 is attached to the frame by coupling a nut or quick release mechanism to each attachment portion 12C.

It is preferable that at least a part of the first member 14 is provided on the first end portion 12A side of the hub shaft 12 with respect to the second member 16 in the axial direction C of the hub shaft 12. It is preferable that at least a part of the first member 14 is provided on the first end portion 12A side of the hub shaft 12 with respect to the hub body 20 in the axial direction C of the hub shaft 12. It is preferable that at least a part of the second member 16 is provided on the first end portion 12A side of the hub shaft 12 with respect to the hub body 20 in the axial direction C of the hub shaft 12. It is preferable that the entire first member 14 and the entire second member 16 are provided on the first end portion 12A side of the hub shaft 12 with respect to the center of the hub body 20 in the axial direction C of the hub shaft 12. The transmission mechanism 22 and the first engaging portion 30 are preferably provided on the first end portion 12A side of the hub body 20 in the axial direction C of the hub shaft 12. In this case, the first engaging portion 30 is provided on the side opposite to the center of the hub body 20 with respect to the transmission mechanism 22 in the axial direction C of the hub shaft 12.

The first member 14 is formed in a cylindrical shape. The rotation axis of the first member 14 coincides with the rotation axis of the hub shaft 12. The outer peripheral portion 14A of the first member 14 is provided with a convex portion for attaching a sprocket. It is preferable that a plurality of sprockets are attached to the outer peripheral portion 14A of the first member 14. A first bearing 32 is provided between the intermediate portion of the hub shaft 12 of the first member 14 in the axial direction C and the hub shaft 12. The first bearing 32 is preferably a rolling bearing. The first bearing 32 rotatably supports the first member 14 with respect to the hub shaft 12.

The second member 16 is formed in a cylindrical shape. The rotation axis of the second member 16 coincides with the rotation axis of the hub shaft 12. The second member 16 includes a small diameter portion 34, an intermediate portion 36, and a large diameter portion 38. The small diameter portion 34 has a cylindrical shape. The large diameter portion 38 has a cylindrical shape having an inner diameter larger than that of the small diameter portion 34. The intermediate portion 36 connects the small diameter portion 34 and the large diameter portion 38.

The small diameter portion 34 is arranged between the hub shaft 12 and the first member 14 in the radial direction X of the hub shaft 12. It is preferable that a slide bearing is provided between the small diameter portion 34 and the hub shaft 12. The plain bearing rotatably supports the small diameter portion 34 with respect to the hub shaft 12.

The intermediate portion 36 extends in the radial direction X of the hub shaft 12. A second bearing 40 is provided between the connecting portion between the intermediate portion 36 and the small diameter portion 34 and the first member 14. The second bearing 40 is preferably a rolling bearing. The second bearing 40 rotatably supports the second member 16 with respect to the first member 14.

At least a part of the large diameter portion 38 is arranged between the hub shaft 12 and the hub body 20 in the radial direction X of the hub shaft 12. The large diameter portion 38 has a first end portion 38A on the first end portion 12A side of the hub shaft 12 in the axial direction C of the hub shaft 12 and a second end portion 12 B of the hub shaft 12 in the axial direction C of the hub shaft 12. Includes the second end 38B on the side.

The one-way clutch 18 is provided between the first member 14 and the small diameter portion 34 of the second member 16. The one-way clutch 18 includes a claw member 42. The claw member 42 is provided on one of the inner peripheral portion of the first member 14 and the outer peripheral portion of the small diameter portion 34, and is engaged with a groove 44 provided on the other of the inner peripheral portion of the first member 14 and the outer peripheral portion of the small diameter portion 34. It fits. In the human-powered vehicle hub 10 of FIG. 3, the claw member 42 is provided on the outer peripheral portion of the small diameter portion 34 and engages with the groove 44 provided on the inner peripheral portion of the first member 14. It is preferable that the one-way clutch 18 further includes an elastic member that applies a force to the claw member 42 in a direction in which the claw member 42 projects toward the groove 44. The one-way clutch 18 may be a roller clutch.

When the first member 14 rotates in the first rotation direction A1, the one-way clutch 18 transmits the rotation of the first member 14 to the second member 16. The first rotation direction A1 corresponds to the rotation direction of the first member 14 when the human-powered driving force is input to the crank of the human-powered vehicle and the human-powered vehicle moves forward. In the one-way clutch 18, when the first member 14 rotates in the first rotation direction A1 with the rotation of the sprocket, the claw member 42 engages with the groove 44 to rotate the first member 14 to the second member 16. Communicate to. In the one-way clutch 18, for example, the rotation speed of the second member 16 connected to the hub body 20 in the first rotation direction A1 by rotating the drive wheel in the direction in which the human-powered vehicle advances in inertia or downhill is the first. When the rotation speed of the 1 member 14 is higher than the rotation speed, the claw member 42 does not engage with the groove 44, so that the rotation of the second member 16 with respect to the first member 14 is allowed. Therefore, the rotation of the second member 16 is not transmitted to the first member 14.

The hub body 20 includes a first end portion 20A on the first end portion 12A side of the hub shaft 12 in the axial direction C of the hub shaft 12, and a second end portion 20B on the second end portion 12B side of the hub shaft 12. .. A third bearing 46 is provided between the second end 20B and the hub shaft 12. The third bearing 46 rotatably supports the hub body 20 with respect to the hub shaft 12.

The hub body 20 includes a flange portion 48 to which the spokes of the wheel are attached. It is preferable that at least a part of the regulating portion 24 overlaps with the flange portion 48 in the axial direction C of the hub shaft 12. The flange portion 48 includes a first flange portion 48A and a second flange portion 48B. The first flange portion 48A is provided on the first end portion 20A side of the hub body 20. The second flange portion 48B is provided on the second end portion 20B side of the hub body 20. The flange portions 48A and 48B are provided with holes 50 to which the spokes are connected. It is preferable that at least a part of the regulating portion 24 overlaps with the first flange portion 48A in the axial direction C of the hub shaft 12.

The hub body 20 has an opening 52 formed at a first end portion 20A in the axial direction C of the hub shaft 12. The second member 16 covers the opening 52. The opening 52 is formed in a portion of the hub body 20 having the maximum inner diameter. The large diameter portion 38 of the second member 16 is attached to the inner peripheral surface of the hub body 20. Specifically, at least a part of the large diameter portion 38 of the second member 16 is inserted into the opening 52. A transmission mechanism 22 is provided in a portion of the large diameter portion 38 of the second member 16 inserted into the opening 52. It is preferable that a seal member is provided between the second member 16 and the hub body 20.

The convex portion 26 is preferably formed integrally with one of the second member 16 and the hub body 20. The recess 28 is preferably formed integrally with the other of the second member 16 and the hub body 20. In one example, the convex portion 26 is formed on the outer peripheral portion of the large diameter portion 38 of the second member 16, and the concave portion 28 is formed on the inner peripheral portion near the opening 52 of the hub body 20. It is preferable that a plurality of protrusions 26 and 28 are provided in the circumferential direction. In one example, the convex portion 26 and the concave portion 28 are spline-fitted. It is preferable that the transmission mechanism 22 does not restrict the movement of the hub shaft 12 in the axial direction C with respect to the hub body 20 of the second member 16. When the transmission mechanism 22 includes a screw, it becomes difficult to remove the second member 16 from the hub body 20 when the axial force due to the screw becomes large. In the hub 10 for a human-powered vehicle of the present embodiment, since the second member 16 and the hub body 20 are spline-fitted, the second member 16 is slid with respect to the hub body 20 in the axial direction C of the hub shaft 12. The second member 16 can be easily removed from the hub body 20. The convex portion 26 and the concave portion 28 may be serrated and fitted. Further, only one convex portion 26 and one concave portion 28 may be provided. In this case, the convex portion 26 and the concave portion 28 may be a key and a key groove, respectively.

The transmission mechanism 22 is arranged on the side opposite to the first member 14 with the flange portion 48 interposed therebetween in the axial direction C of the hub shaft 12. Specifically, the transmission mechanism 22 is arranged on the second end portion 12B side of the hub shaft 12 with respect to the first flange portion 48A in the axial direction C of the hub shaft 12. It is more preferable that the entire transmission mechanism 22 is arranged on the second end portion 12B side of the hub shaft 12 rather than the first flange portion 48A in the axial direction C of the hub shaft 12.

The transmission mechanism 22 is provided outside the first member 14 in the radial direction X of the hub shaft 12. As shown in FIG. 5, the minimum outer diameter L21 of the portion of the second member 16 where the transmission mechanism 22 is provided is larger than the maximum outer diameter L11 of the first member 14. The minimum outer diameter L21 of the portion of the second member 16 where the transmission mechanism 22 is provided is preferably 40 mm or more and 100 mm or less, and more preferably 60 mm or more and 80 mm or less. In the present embodiment, the minimum outer diameter L21 of the portion of the second member 16 where the transmission mechanism 22 is provided is 68 mm. Further, it is preferable that the maximum outer diameter L22 of the portion of the second member 16 where the transmission mechanism 22 is provided is 1 to 3 mm or more larger than the minimum outer diameter L21. In the present embodiment, the maximum outer diameter L22 of the portion of the second member 16 where the transmission mechanism 22 is provided is 70.2 mm. The maximum outer diameter L11 of the first member 14 is preferably 20 mm or more and 60 mm or less, and more preferably 30 mm or more and 50 mm or less. In the present embodiment, the maximum outer diameter L11 of the first member 14 is 37.3 mm.

The human-powered vehicle hub 10 includes a power generation mechanism 54 and one or more transmission mechanisms 22. The power generation mechanism 54 is arranged between the hub body 20 and the hub shaft 12, and generates power by the rotation of the hub body 20 with respect to the hub shaft 12. All of one or more transmission mechanisms 22 preferably include a convex portion 26 and a concave portion 28. The hub 10 for a human-powered vehicle preferably includes one transmission mechanism 22. When the hub 10 for a human-powered vehicle transmits rotation between a plurality of members in the rotation transmission path from the one-way clutch 18 to the portion engaged with the spokes, the convex portion 26 and the concave portion 28 are engaged with each other. It is preferable that the rotation is transmitted only by. When the hub 10 for a human-powered vehicle transmits rotation between a plurality of members in the rotation transmission path from the one-way clutch 18 to the portion engaged with the spoke, the rotation is transmitted by the engagement of the male screw and the female screw. Is preferably not done.

In one example, the power generation mechanism 54 includes a magnet 54A provided on the inner peripheral portion of the hub body 20 and an armature 54B provided on the outer peripheral portion of the hub shaft 12. The armature 54B includes a yoke and a coil. Electric power is generated by the rotation of the hub body 20 and the magnet 54A around the hub shaft 12 and the armature 54B.

It is preferable that the hub 10 for a human-powered vehicle further includes a circuit unit 56. The electric power generated by the power generation mechanism 54 is supplied to the circuit unit 56 via the electric wire. The circuit unit 56 preferably includes a control unit that controls the electric power generated by the power generation mechanism 54. The control unit includes an arithmetic processing unit that executes a predetermined control program. The arithmetic processing unit includes, for example, a CPU (Central Processing Unit) or an MPU (Micro Processing Unit). The control unit may include one or more microcomputers. The control unit may include a plurality of arithmetic processing units arranged at a plurality of locations apart from each other. The circuit unit 56 may further include a storage unit. Information used for various control programs and various control processes is stored in the storage unit. The storage unit includes, for example, a non-volatile memory and a volatile memory. It is preferable that at least a part of the circuit unit 56 is arranged in a space provided inside the hub body 20. In this case, it is preferable that the circuit unit 56 is provided at a position adjacent to the power generation mechanism 54 in the axial direction C of the hub shaft 12. More preferably, the circuit portion 56 is provided on the first end portion 12A side of the hub shaft 12 with respect to the power generation mechanism 54 in the axial direction C of the hub shaft 12. The circuit unit 56 may be arranged at least in a space provided between the first member 14 and the hub shaft 12. The circuit unit 56 may further include a power storage unit that stores the electric power generated by the power generation mechanism 54. The electric power generated by the power generation mechanism 54 is preferably transmitted to the outside of the human-powered vehicle hub 10 via the circuit unit 56. In this case, it is preferable that the electric wire for power transmission is wired inside the hub shaft 12.

As shown in FIGS. 3 and 4, the regulating portion 24 is formed in a disk shape. The regulating portion 24 is formed separately from the second member 16 and the hub body 20. The regulating portion 24 is detachably connected to the second member 16 and the hub body 20.

The regulating portion 24 is provided outside the first member 14 in the radial direction X of the hub shaft 12. The regulating portion 24 is formed in a disk shape. As shown in FIGS. 3 to 5, the minimum inner diameter L31 of the regulating portion 24 is larger than the maximum outer diameter L11 of the first member 14. The minimum inner diameter L31 of the regulating portion 24 is preferably 30 mm or more and 90 mm or less, and more preferably 50 mm or more and 70 mm or less. In the present embodiment, the minimum inner diameter L31 of the regulation unit 24 is 57 mm.

The first engaging portion 30 is provided outside the first member 14 in the radial direction X of the hub shaft 12. The regulating portion 24 includes a second engaging portion 60 that is coupled to the first engaging portion 30. The first engaging portion 30 includes a first screw portion 58. The second engaging portion 60 includes a second threaded portion 62 that is coupled to the first threaded portion 58. The first threaded portion 58 includes a female thread. The female screw inner diameter L23 of the first screw portion 58 is larger than the maximum outer diameter L22 of the portion of the second member 16 where the transmission mechanism 22 is provided. The female screw inner diameter L23 is preferably 40 mm or more and 100 mm or less, and more preferably 60 mm or more and 80 mm or less. In the present embodiment, the female screw inner diameter L23 is 72 mm. The second threaded portion 62 includes a male thread. The outer diameter of the second threaded portion 62 corresponds to the female thread inner diameter L23 of the first threaded portion 58.

The transmission mechanism 22 and the first engaging portion 30 are adjacent to each other in the axial direction C of the hub shaft 12. The regulating portion 24 includes a first portion 24A extending in a first direction intersecting the screwing direction of the second screw portion 62. The hub body 20 includes a second portion 20C projecting in the first direction. By sandwiching the second member 16 between the first portion 24A and the second portion 20C, the movement of the hub shaft 12 with respect to the hub body 20 of the second member 16 in the axial direction C is restricted. It is preferable that the screwing direction of the second screw portion 62 coincides with the axial direction C of the hub shaft 12. The first direction is preferably orthogonal to the axial direction C of the hub axis 12. The first portion 24A is provided on the first end portion 12A side of the hub shaft 12 with respect to the second screw portion 62 in the axial direction C of the hub shaft 12.

The regulating portion 24 is provided with a tool engaging portion 64 that can engage with the tool while being attached to the second member 16 and the hub body 20. The tool engaging portion 64 is preferably provided in the first portion 24A. By operating the tool engaged with the tool engaging portion 64 by the operator, the regulating portion 24 is attached to the hub body 20 and removed from the hub body 20. The tool engaging portion 64 includes, for example, a plurality of recesses provided in the inner peripheral portion of the regulating portion 24. A tool having a convex portion corresponding to the concave portion is rotated while being fitted in the tool engaging portion 64, so that the second screw portion 62 is screwed into the first screw portion 58, or the second screw portion 62 is screwed. It is removed from the first screw portion 58.

By screwing the second screw portion 62 into the first screw portion 58, the first portion 24A of the regulation portion 24 is pressed against the first end portion 38A of the large diameter portion 38 of the second member 16, and the second member The second end 38B of the large diameter portion 38 of 16 is pressed against the second portion 20C. The first portion 24A of the regulating portion 24 regulates the movement of the second member 16 on the first end portion 12A side in the axial direction C of the hub shaft 12 by coming into contact with the second member 16. The second portion 20C of the hub body 20 restricts the movement of the second member 16 on the second end portion 12B side in the axial direction C of the hub shaft 12 by coming into contact with the second member 16.

By removing the second screw portion 62 from the first screw portion 58, the regulating portion 24 is removed from the second member 16 and the hub body 20. By removing the restricting portion 24 from the second member 16 and the hub body 20, regulation of the movement of the hub shaft 12 with respect to the hub body 20 of the second member 16 in the axial direction C is permitted. By moving the second member 16 with respect to the hub body 20 in the axial direction C of the hub shaft 12 and removing the second member 16 from the hub body 20, maintenance of the inside of the hub body 20 can be performed. Maintenance includes, for example, replacement of the power generation mechanism 54. It is preferable that the second member 16 is configured to be integrally removed from the hub body 20 together with the first member 14 and the one-way clutch 18.

In a virtual human-powered vehicle hub in which the second member is connected to the hub body by a screw, the axial force due to the screw increases due to the rotation of the second member, and the second member may be difficult to remove from the hub body. In the human-powered vehicle hub 10 of the present embodiment, the rotation of the second member 16 is transmitted to the hub body 20 via the transmission mechanism 22 without passing through the first screw portion 58 and the second screw portion 62. Therefore, it is difficult for the axial force between the first screw portion 58 and the second screw portion 62 to increase due to the rotation of the second member 16, and the second member 16 can be easily removed from the hub body 20.

(Modification example)
The description of the embodiments is an example of possible embodiments of a hub for a human-powered vehicle according to the present invention, and is not intended to limit the embodiments. The hub for a human-powered vehicle according to the present invention may take, for example, a modification of the embodiment shown below and a combination of at least two modifications that do not contradict each other. In the following modification, the parts common to the embodiment are designated by the same reference numerals as those in the embodiment, and the description thereof will be omitted.

The convex portion 26 of the transmission mechanism 22 may be provided separately from the second member 16. In this case, for example, the convex portion 26 is provided on the first transmission member that is separate from the second member 16, and the first transmission member is attached to the inner peripheral portion of the second member 16. The first transmission member may be fixed to the second member 16 by press fitting, or may be attached to the second member 16 by spline fitting, serration fitting, or keys and keyways.

The recess 28 of the transmission mechanism 22 may be provided separately from the hub body 20. In this case, for example, the recess 28 is provided in the second transmission member separate from the hub body 20, and the transmission member is attached to the inner peripheral portion of the second member 16. The second transmission member may be fixed to the hub body 20 by press fitting, or may be attached to the hub body 20 by spline fitting, serration fitting, or keys and keyways.

-The second transmission member of the above-mentioned modification may be the first transmission member. In this case, the convex portion 26 of the transmission mechanism 22 is provided separately from the second member 16, and the concave portion 28 of the transmission mechanism 22 is provided separately from the hub body 20.

-The power generation mechanism 54 may be omitted. In this case, at least one of the transmission mechanisms 22 may not have protrusions and recesses. For example, at least one transmission mechanism 22 is screwed together to transmit the rotation of the second member 16 to the hub body 20 between the two members.

The first engaging portion 30 may be provided inside the first member 14 in the radial direction X of the hub shaft 12, and at least a part of the first member 14 may be provided in the radial direction X of the hub shaft 12. It may be provided so as to overlap.

The first engaging portion 30 may be provided on the hub body 20 side of the transmission mechanism 22 in the axial direction C of the hub shaft 12, and at least a part of the hub body 20 in the axial direction C of the hub shaft 12. May be provided so as to overlap each other.

10 ... Hub for human-powered vehicle, 12 ... Hub shaft, 14 ... First member, 16 ... Second member, 18 ... One-way clutch, 20 ... Hub body, 20C ... Second part, 48A, 48 ... Flange part, 52 ... Opening part, 22 ... Transmission mechanism, 24 ... Regulatory part, 24A ... First part, 26 ... Convex part, 28 ... Concave part, 30 ... First engaging part, 58 ... First screw part, 60 ... Second engaging part , 62 ... Second screw portion, 54 ... Power generation mechanism, 64 ... Tool engaging portion.

Claims (23)

With the hub axle,
A first member rotatably provided around the hub shaft with respect to the hub shaft,
A second member rotatably provided around the hub shaft with respect to the hub shaft,
A one-way clutch that transmits the rotation of the first member in the first rotation direction to the second member,
A hub body rotatably provided around the hub shaft with respect to the hub shaft and connected to the second member.
The second member includes a convex portion provided on one of the second member and the hub body, and a concave portion provided on the other side of the second member and the hub body so as to engage with the convex portion. A transmission mechanism that transmits rotation to the hub body,
Including a regulating portion provided at a portion different from the transmission mechanism so as to regulate the movement of the second member with respect to the hub body in the axial direction of the hub shaft.
The hub body includes a first engaging portion that engages with the restricting portion.
The first engaging portion is a hub for a human-powered vehicle provided on the first member side of the transmission mechanism in the axial direction of the hub shaft. The hub for a human-powered vehicle according to claim 1, wherein the first engaging portion is provided outside the first member in the radial direction of the hub shaft. With the hub axle,
A first member rotatably provided around the hub shaft with respect to the hub shaft,
A second member rotatably provided around the hub shaft with respect to the hub shaft,
A one-way clutch that transmits the rotation of the first member in the first rotation direction to the second member,
A hub body rotatably provided around the hub shaft with respect to the hub shaft and connected to the second member.
The second member includes a convex portion provided on one of the second member and the hub body, and a concave portion provided on the other side of the second member and the hub body so as to engage with the convex portion. A transmission mechanism that transmits rotation to the hub body,
Including a regulating portion provided at a portion different from the transmission mechanism so as to regulate the movement of the second member with respect to the hub body in the axial direction of the hub shaft.
The hub body includes a first engaging portion that engages with the restricting portion.
The first engaging portion is a hub for a human-powered vehicle provided outside the first member in the radial direction of the hub shaft. The hub for a human-powered vehicle according to claim 3, wherein the first engaging portion is provided on the first member side of the transmission mechanism in the axial direction of the hub shaft. A power generation mechanism arranged between the hub body and the hub shaft and generating power by rotation of the hub body with respect to the hub shaft.
Including one or more of said transmission mechanisms,
The hub for a human-powered vehicle according to any one of claims 1 to 4, wherein all of the one or more transmission mechanisms include the convex portion and the concave portion. With the hub axle,
A first member rotatably provided around the hub shaft with respect to the hub shaft,
A second member rotatably provided around the hub shaft with respect to the hub shaft,
A one-way clutch that transmits the rotation of the first member in the first rotation direction to the second member,
A hub body rotatably provided around the hub shaft with respect to the hub shaft and connected to the second member.
A convex portion provided on one of the second member and the hub body so as to extend in the axial direction of the hub shaft, and the second member and the convex portion so as to extend in the axial direction of the hub shaft and engage with the convex portion. One or more transmission mechanisms that include a recess provided on the other side of the hub body and transmit the rotation of the second member to the hub body.
A power generation mechanism, which is arranged between the hub body and the hub shaft and generates power by rotation of the hub body with respect to the hub shaft, is included.
All of the one or more transmission mechanisms are hubs for human-powered vehicles, including the convex portion and the concave portion. It further includes a regulating portion provided in a portion different from the transmission mechanism and restricting the movement of the second member with respect to the hub body in the axial direction of the hub shaft.
The hub for a human-powered vehicle according to claim 6, wherein the hub body includes a first engaging portion that engages with the regulating portion. The hub for a human-powered vehicle according to claim 7, wherein the first engaging portion is provided outside the first member in the radial direction of the hub shaft. The hub for a human-powered vehicle according to claim 7 or 8, wherein the first engaging portion is provided on the first member side of the transmission mechanism in the axial direction of the hub shaft. The hub for a human-powered vehicle according to any one of claims 1 to 5 and 7 to 9, wherein the transmission mechanism and the first engaging portion are adjacent to each other in the axial direction of the hub shaft. The hub for a human-powered vehicle according to any one of claims 1 to 5 and 7 to 10, wherein the regulating portion is detachably connected to the second member and the hub body. The hub for a human-powered vehicle according to any one of claims 1 to 5 and 7 to 11, wherein the restricting portion includes a second engaging portion to be coupled to the first engaging portion. The one engaging portion includes a first screw portion and includes a first screw portion.
The hub for a human-powered vehicle according to claim 12, wherein the second engaging portion includes a second screw portion to be coupled to the first screw portion. The restricting portion includes a first portion extending in a first direction intersecting the screwing direction of the second screw portion.
The hub body includes a second portion projecting in the first direction.
13. The second member is sandwiched between the first portion and the second portion, whereby the axial movement of the hub shaft with respect to the hub body of the second member is restricted. Hub for human-powered vehicles as described in. The one according to any one of claims 1 to 5 and 7 to 14, wherein the restricting portion is provided with a tool engaging portion capable of engaging with a tool when attached to the second member and the hub body. Hub for human-powered vehicles. The hub body includes a flange portion to which the spokes of the wheel are attached.
The hub for a human-powered vehicle according to any one of claims 1 to 5 and 7 to 15, wherein the restricting portion overlaps at least a part of the flange portion in the axial direction of the hub shaft. The hub for a human-powered vehicle according to claim 16, wherein the transmission mechanism is arranged on the side opposite to the first member with the flange portion interposed therebetween in the axial direction of the hub shaft. The hub for a human-powered vehicle according to any one of claims 1 to 17, wherein the transmission mechanism is provided outside the first member in the radial direction of the hub shaft. The hub for a human-powered vehicle according to any one of claims 1 to 18, wherein a plurality of the convex portion and the concave portion are provided in the circumferential direction. The hub for a human-powered vehicle according to claim 19, wherein the convex portion and the concave portion are spline-fitted. The hub for a human-powered vehicle according to any one of claims 1 to 20, wherein the convex portion is integrally formed with one of the second member and the hub body. The hub for a human-powered vehicle according to any one of claims 1 to 21, wherein the recess is integrally formed with the second member and the other of the hub body. The hub body includes a first end portion of the hub shaft on the first end side and a second end portion of the hub shaft on the second end side in the axial direction of the hub shaft. An opening is formed at the first end portion, and an opening is formed.
The hub for a human-powered vehicle according to any one of claims 1 to 22, wherein the second member covers the opening.

Images