JP7420466B2 - Components for human-powered vehicles - Google Patents

Description

The present invention relates to components for human powered vehicles.

A drive unit, which is an example of a conventional component for a human-powered vehicle, includes an electric motor that assists in propulsion of the human-powered vehicle, and a resin housing in which the electric motor is provided (for example, see Patent Document 1).

Patent No. 4124393

In conventional human-powered vehicle components, the attachment portion to the frame is also made of resin. Although the mounting portion is reinforced by embedding metal, there is a risk that the resin forming the mounting portion will be damaged if a load is applied by bolts or the like.
The object of the invention is to provide a component for a human-powered vehicle that is lightweight and can be stably attached to a frame.

A component for a human-powered vehicle according to a first aspect of the present invention includes a resin housing provided with a through hole configured to allow a crankshaft to pass therethrough; a metal mount configured to be attached to a vehicle frame.
According to the human-powered vehicle component of the first aspect, since the housing is made of resin, it is easy to reduce the weight of the human-powered vehicle component. Furthermore, since the metal attachment part is provided on the housing so as to protrude from the housing, damage to the attachment part is suppressed when the attachment part is attached to the frame, and it can be stably attached to the frame. can.

In the component for a human-powered vehicle of the second aspect according to the first aspect, the attachment part includes a fixing part configured to be fixed to the housing.
According to the human-powered vehicle component of the second aspect, it is possible to suppress the attachment portion from coming off from the housing.

In the component for a human-powered vehicle according to the third aspect according to the second aspect, the fixing part is formed integrally with the housing.
According to the human-powered vehicle component of the third aspect, it is possible to suppress the attachment portion from coming off from the housing.

In the component for a human-powered vehicle according to the fourth aspect according to the third aspect, the fixing part is insert-molded in the housing.
According to the component for a human-powered vehicle of the fourth aspect, it is possible to suppress the attachment portion from coming off from the housing.

In the component for a human-driven vehicle having a fifth aspect according to any one of the first to fourth aspects, the attachment part includes a first attachment part and a second attachment part, and the first attachment part and the second attachment part include a first attachment part and a second attachment part. The portions are arranged at intervals in the axial direction of the crankshaft.
According to the human-powered vehicle component of the fifth aspect, the human-powered vehicle component can be stably attached to the human-powered vehicle.

In the component for a human-driven vehicle having a sixth aspect according to any one of the second to fourth aspects, the attachment part includes a first attachment part and a second attachment part, and the first attachment part and the second attachment part include a first attachment part and a second attachment part. The parts are arranged at intervals in the axial direction of the crankshaft, and the first mounting part, the second mounting part, and the fixing part are integrally formed.
According to the human-powered vehicle component of the sixth aspect, the attachment portion is difficult to come off from the housing, and the human-powered vehicle component can be stably attached to the human-powered vehicle.

In the human-powered vehicle component of the seventh aspect according to the sixth aspect, the first attachment part, the second attachment part, and the fixing part are formed of sheet metal.
According to the human-powered vehicle component of the seventh aspect, the mounting portion can be manufactured at low cost.

In the component for a human-driven vehicle according to the eighth aspect according to any one of the first to seventh aspects, the attachment part includes a third attachment part and a fourth attachment part, and the third attachment part and the fourth attachment part include a third attachment part and a fourth attachment part. The portions are arranged at intervals in the circumferential direction of the crankshaft.
According to the component for a human-powered vehicle of the eighth aspect, the component for a human-powered vehicle can be stably attached to the human-powered vehicle.

In the component for a human-powered vehicle according to the ninth aspect according to any one of the second to fourth, sixth and seventh aspects, the attachment portion includes a third attachment portion and a fourth attachment portion;
The third mounting portion and the fourth mounting portion are arranged at intervals in the circumferential direction of the crankshaft, and the third mounting portion, the fourth mounting portion, and the fixing portion are integrally formed.
According to the human-powered vehicle component of the ninth aspect, the attachment portion is difficult to come off from the housing, and the human-powered vehicle component can be stably attached to the human-powered vehicle.

In the component for a human-powered vehicle according to the tenth aspect according to the ninth aspect, the third attachment part, the fourth attachment part, and the fixing part are formed of sheet metal.
According to the human-powered vehicle component of the tenth aspect, the mounting portion can be manufactured at low cost.

In the component for a human-powered vehicle according to the eleventh aspect according to any one of the fifth to seventh aspects, the attachment part further includes a fifth attachment part, and the first attachment part and the second attachment part, and the The fifth attachment portions are arranged at intervals in the circumferential direction of the crankshaft.
According to the human-powered vehicle component of the eleventh aspect, the human-powered vehicle component can be stably attached to the human-powered vehicle.

In the human-driven vehicle component according to the twelfth aspect according to the sixth or seventh aspect, the attachment part further includes a fifth attachment part, and the first attachment part and the second attachment part, and the fifth attachment part. are arranged at intervals in the circumferential direction of the crankshaft, and the first mounting part, the second mounting part, the fifth mounting part, and the fixing part are integrally formed.
According to the human-powered vehicle component of the twelfth aspect, the attachment portion is difficult to come off from the housing, and the human-powered vehicle component can be suitably attached to the human-powered vehicle.

In the component for a human-powered vehicle according to the thirteenth aspect according to the twelfth aspect, the first attachment part, the second attachment part, the fifth attachment part, and the fixing part are formed of sheet metal.
According to the human-powered vehicle component of the thirteenth aspect, the mounting portion can be manufactured at low cost.

In the component for a human-driven vehicle according to the fourteenth aspect according to any one of the eleventh to thirteenth aspects, the attachment portion further includes a sixth attachment portion, and the fifth attachment portion and the sixth attachment portion are They are arranged at intervals in the axial direction of the crankshaft.
According to the human-powered vehicle component of the fourteenth aspect, the human-powered vehicle component can be stably attached to the human-powered vehicle.

In the component for a human-powered vehicle according to the fifteenth aspect according to the twelfth aspect, the attachment part further includes a sixth attachment part, and the fifth attachment part and the sixth attachment part are spaced apart from each other in the axial direction of the crankshaft. The first mounting portion, the second mounting portion, the fifth mounting portion, the sixth mounting portion, and the fixing portion are integrally formed.
According to the human-powered vehicle component of the fifteenth aspect, the attachment portion is difficult to come off from the housing, and the human-powered vehicle component can be stably attached to the human-powered vehicle.

In the component for a human-powered vehicle according to the sixteenth aspect according to the fifteenth aspect, the first attachment part, the second attachment part, the fifth attachment part, the sixth attachment part, and the fixing part are formed of sheet metal. .
According to the human-powered vehicle component of the 16th aspect, the mounting portion can be manufactured at low cost.

The component for a human-powered vehicle according to the seventeenth aspect according to any one of the first to sixteenth aspects includes: a bearing part provided in the housing and rotatably supporting the crankshaft; The apparatus further includes a metal support part that supports the bearing part.
According to the human-powered vehicle component of the seventeenth aspect, the bearing portion can be stably supported.

In the component for a human-powered vehicle having an eighteenth aspect according to any one of the second to fourth, sixth, seventh, ninth, tenth, twelfth, thirteenth, fifteenth and sixteenth aspects, the housing further comprising: a bearing section that is provided and rotatably supports the crankshaft; and a metal support section that is connected to the mounting section and supports the bearing section, and the mounting section and the support section are integrally formed. It is formed.
According to the component for a human-driven vehicle of the eighteenth aspect, the bearing portion can be stably supported.

In the component for a human-powered vehicle according to the nineteenth aspect according to the eighteenth aspect, the mounting portion and the support portion are formed of a sheet metal.
According to the component for a human-powered vehicle of the nineteenth aspect, the attachment portion and the support portion can be manufactured at low cost.

In the component for a human-powered vehicle according to the 20th aspect according to the 19th aspect, the support portion is insert-molded in the housing.
According to the human-powered vehicle component of the 20th aspect, it is possible to suppress the support portion from coming off from the housing.

The component for a human-powered vehicle according to the twenty-first aspect according to any one of the first to twentieth aspects further includes a nut, and the mounting portion includes a hole in which the nut is provided.
According to the human-powered vehicle component of the twenty-first aspect, the human-powered vehicle component can be easily attached to the human-powered vehicle with bolts.

In the component for a human-powered vehicle according to the twenty-second aspect according to the twenty-first aspect, the attachment portion further includes a first flange portion formed at an edge of the hole.
According to the human-powered vehicle component of the twenty-second aspect, it is possible to suppress the nut from coming off from the attachment portion.

In the component for a human-powered vehicle according to the twenty-third aspect according to the twenty-second aspect, the first flange portion is formed by burring.
According to the human-powered vehicle component of the twenty-third aspect, the first flange portion can be easily formed.

In the component for a human-powered vehicle according to the twenty-fourth aspect according to any one of the first to twenty-third aspects, the attachment portion further includes a screw hole.
According to the human-powered vehicle component of the twenty-fourth aspect, the human-powered vehicle component can be attached to the human-powered vehicle using bolts.

In the component for a human-powered vehicle according to the twenty-fifth aspect according to the twenty-fourth aspect, the attachment portion further includes a second flange portion provided at an edge of the screw hole.
According to the component for a human-driven vehicle of the twenty-fifth aspect, since the second flange portion has an increased portion that engages with the bolt, the bolt can be stably attached to the attachment portion.

In the component for a human-powered vehicle according to the twenty-sixth aspect according to the twenty-fifth aspect, the second flange portion is formed by burring.
According to the human-powered vehicle component of the twenty-sixth aspect, the second flange portion can be easily formed.

The component for a human-powered vehicle according to the twenty-seventh aspect according to any one of the first to twenty-sixth aspects further includes an electric motor having a stator, the stator being insert-molded in the housing.
According to the human-powered vehicle component of the twenty-seventh aspect, a member for attaching the electric motor to the housing can be omitted.

The component for a human-powered vehicle according to the twenty-eighth aspect according to any one of the first to twenty-seventh aspects, further comprising: an electric motor provided in the housing; and a metal motor provided in the housing and integrally formed with the mounting portion. a reinforcing member, the reinforcing member contacting the electric motor.
According to the human-powered vehicle component of the twenty-eighth aspect, heat of the electric motor can be radiated through the reinforcing member, and heat radiation performance can be improved.

In the component for a human-powered vehicle according to the twenty-ninth aspect according to any one of the first to twenty-eighth aspects, the attachment portion has flexibility.
According to the human-powered vehicle component of the twenty-ninth aspect, even if there is a gap between the mounting portion and the human-powered vehicle component, the mounting portion is bent, so that the mounting portion and the human-powered vehicle component are It can fill in the gaps between components. Therefore, in a state where the human-powered vehicle component is attached to the human-powered vehicle, it is possible to suppress rattling of the human-powered vehicle component against the frame of the human-powered vehicle.

The human-powered vehicle component of the present invention is lightweight and can be stably attached to a frame.

1 is a side view of a bicycle including a human-powered vehicle component according to a first embodiment; FIG. FIG. 2 is an exploded perspective view of a human-powered vehicle component and a bracket. FIG. 2 is a front view of the human-powered vehicle component in FIG. 1; FIG. 4 is a cross-sectional view taken along the cross-section indicator line in FIG. 3 ; FIG. 2 is a perspective view of a first housing of a component for a human-powered vehicle. FIG. 6 is a perspective view of the first housing of FIG. 5 viewed from another angle. (a) is a front view of the fastening member, and (b) is a sectional view of the fastening member. FIG. 3 is a perspective view of a mounting portion of a component for a human-powered vehicle. FIG. 9 is a front view of the attachment section in FIG. 8; FIG. 3 is a perspective view of another mounting part of a component for a human-powered vehicle. FIG. 3 is a perspective view of yet another mounting portion of a component for a human-powered vehicle. FIG. 3 is a perspective view of the second housing of the human-powered vehicle component. FIG. 13 is a perspective view of the reinforcing member of the second housing of FIG. 12; (a) and (b) are side views showing the mounting structure of the mounting part and the bracket. FIG. 7 is an exploded perspective view of another example of the mounting structure between the mounting part and the bracket. FIG. 16 is a cross-sectional view of the attachment portion in FIG. 15; FIG. 16 is a cross-sectional view showing the mounting structure between the mounting portion and the bracket shown in FIG. 15; FIG. 6 is a perspective view of a first housing of a component for a human-powered vehicle according to a second embodiment. FIG. 19 is a perspective view of the mounting portion of the human-powered vehicle component of FIG. 18; FIG. 20 is a developed view of the mounting portion of FIG. 19 before being bent; FIG. 7 is a sectional view of a motor and its surroundings as a component for a human-powered vehicle according to a third embodiment. FIG. 22 is a sectional view of another example of the motor shown in FIG. 21 and its surroundings. FIG. 3 is an exploded perspective view of the rotor core of the motor. FIG. 3 is a plan view of the first lamination of the rotor core. FIG. 3 is a plan view of the second lamination of the rotor core. A plan view of a rotor core. FIG. 7 is an exploded perspective view of a part of a motor in a component for a human-powered vehicle according to a fourth embodiment. FIG. 28 is a perspective view of the bracket of the motor of FIG. 27; FIG. 28 is a perspective view of the stopper member of FIG. 27; FIG. 28 is a sectional view of the stopper member of the motor in FIG. 27 and its surroundings. (a) is a cross-sectional view of a mounting portion in a modified example of a human-powered vehicle component, and (b) is a cross-sectional view showing a mounting structure between the mounting portion and the bracket in (a).

(First embodiment)
Referring to FIG. 1, a human-powered vehicle 10 including a human-powered vehicle component 30 according to a first embodiment will be described. The human-powered vehicle 10 is a vehicle that can be driven by at least human-powered driving force. The human-powered vehicle 10 includes, for example, a bicycle. The number of wheels of the human-driven vehicle 10 is not limited, 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 recumbent bikes, as well as electrically assisted bicycles (E-bikes). Hereinafter, in the embodiment, the human-powered vehicle 10 will be described as a bicycle.

The human powered vehicle 10 includes a crank 12 and drive wheels 14. Human-powered vehicle 10 further includes a frame 16 . A human driving force H is input to the crank 12 . The crank 12 includes a crankshaft 12A rotatable with respect to the frame 16, and crank arms 12B provided at both ends of the crankshaft 12A in the axial direction. A pedal 18 is connected to each crank arm 12B. The drive wheels 14 are driven by the rotation of the crank 12. Drive wheel 14 is supported by frame 16. The crank 12 and the drive wheel 14 are connected by a drive mechanism 20. The drive mechanism 20 includes a first rotating body 22 coupled to the crankshaft 12A. The crankshaft 12A and the first rotating body 22 may be coupled via a first one-way clutch. The first one-way clutch is configured to cause the first rotating body 22 to rotate forward when the crank 12 rotates forward, and not to rotate the first rotating body 22 backward when the crank 12 rotates backward. The first rotating body 22 includes a sprocket, a pulley, or a bevel gear. The drive mechanism 20 further includes a connecting member 26 and a second rotating body 24. The connecting member 26 transmits the rotational force of the first rotating body 22 to the second rotating body 24 . Connection member 26 includes, for example, a chain, a belt, or a shaft.

The second rotating body 24 is connected to the drive wheel 14. The second rotating body 24 includes a sprocket, a pulley, or a bevel gear. It is preferable that a second one-way clutch is provided between the second rotating body 24 and the drive wheel 14. The second one-way clutch is configured to cause the driving wheels 14 to rotate forward when the second rotating body 24 rotates forward, and not to rotate the driving wheels 14 backward when the second rotating body 24 rotates backward. .

Human-powered vehicle 10 includes front wheels and rear wheels. A front wheel is attached to the frame 16 via a front fork 16A. A handlebar 16C is connected to the front fork 16A via a stem 16B. In the following embodiments, the rear wheels will be described as the drive wheels 14, but the front wheels may be the drive wheels 14.

The human powered vehicle component 30 is provided on the frame 16. As shown in FIG. 2, the human powered vehicle component 30 is attached to a bracket 28 that is part of the frame 16. The bracket 28 is fixed to, for example, a down tube and a seat tube. Bracket 28 may be connected to the chainstay.
The human-powered vehicle component 30 includes a housing 40 made of resin and a mounting portion 50 made of metal. The metal used in this embodiment is iron or an alloy containing at least aluminum. The attachment portion 50 has flexibility. The housing 40 is preferably made of, for example, polyamide (PA), polybutylene terephthalate (PBT), polyphenylene sulfite (PPS), or the like. For example, when polyphenylene sulfite is used for the housing 40, the heat dissipation of the housing 40 is improved. An example of the housing 40 may be formed by mixing resin with glass fiber. An example of the housing 40 may be formed by mixing resin with at least one of carbon filler and metal filler. When the housing 40 contains a mixture of carbon filler and metal filler, the influence of noise can be reduced. The mounting portion 50 is preferably made of, for example, stainless steel (SUS series) or polished special strip steel (SAE1010 series).

The human powered vehicle component 30 further includes a crankshaft 12A. The crankshaft 12A extends through the housing 40 so as to protrude from both sides of the housing 40 in the left-right direction of the human-powered vehicle 10. The housing 40 is provided with a through hole 42A through which the crankshaft 12A passes. The housing 40 rotatably supports the crankshaft 12A inserted into the through hole 42A. The attachment portion 50 is provided on the housing 40 so as to protrude from the housing 40 and is configured to be attached to the frame 16 of the human-powered vehicle 10. In FIG. 2, attachment portion 50 is configured to be attached to bracket 28, which is part of frame 16. In FIG.

As shown in FIG. 3, the human-powered vehicle component 30 of this embodiment includes a drive unit that assists in propulsion of the bicycle. Human-powered vehicle component 30 includes an electric motor 32 . Electric motor 32 is configured to assist in propulsion of human-powered vehicle 10 . In one example, as shown in FIG. 4, the human powered vehicle component 30 further includes a drive circuit 34 for driving the electric motor 32. Electric motor 32 is provided in housing 40 . The drive circuit 34 is housed in the housing 40.

Housing 40 includes a first housing 40A and a second housing 40B. The first housing 40A has a concave shape with an opening on one side in a direction parallel to the axis C of the crankshaft 12A. Hereinafter, a direction parallel to the axis C of the crankshaft 12A will be referred to as an axial direction CA of the crankshaft 12A. The second housing 40B closes the opening of the first housing 40A. As shown in FIG. 2, the second housing 40B is fixed to the first housing 40A by, for example, a plurality of bolts 41A.

As shown in FIG. 2, preferably, the attachment portion 50 includes a first attachment portion 52A and a second attachment portion 52B. The attachment portion 50 includes third attachment portions 52C, 52D and fourth attachment portions 52E, 52F. As shown in FIG. 2, the first attachment portion 52A and the second attachment portion 52B are arranged at intervals in the axial direction CA of the crankshaft 12A. The third attachment portion 52C and the fourth attachment portion 52E are arranged at intervals in the circumferential direction of the crankshaft 12A. The third attachment portion 52D and the fourth attachment portion 52F are arranged at intervals in the circumferential direction of the crankshaft 12A. The third mounting part 52C and the third mounting part 52D are arranged at intervals in the axial direction CA of the crankshaft 12A, and the fourth mounting part 52E and the fourth mounting part 52F are arranged at intervals in the axial direction CA of the crankshaft 12A. They are placed with a gap between them. As shown in FIGS. 2 and 3, when viewed from the axial direction CA of the crankshaft 12A, the first attachment portion 52A and the second attachment portion 52B are arranged at positions overlapping each other. When viewed from the axial direction CA of the crankshaft 12A, the third mounting part 52C and the third mounting part 52D are arranged at positions overlapping each other, and the fourth mounting part 52E and the fourth mounting part 52F are arranged at positions overlapping each other. Ru.

The human powered vehicle component 30 can be attached to the bracket 28 by means of bolts 36 . Bracket 28 includes a top wall 28A and a pair of flanges 28B. The upper wall 28A covers the human-powered vehicle component 30 from above. The pair of flanges 28B extend from the upper wall 28A so as to be adjacent to the first mounting portion 52A, the second mounting portion 52B, the third mounting portions 52C, 52D, and the fourth mounting portions 52E, 52F in the axial direction CA of the crankshaft 12A. Extends. Each of the pair of flanges 28B is provided at a location facing the first mounting portion 52A, the second mounting portion 52B, the third mounting portions 52C, 52D, and the fourth mounting portions 52E, 52F in the axial direction CA of the crankshaft 12A. It includes a through hole 28C. The bolt 36 is inserted into the through hole 28C and fixed to the mounting portion 50.

FIG. 4 shows an example of the internal structure of the human-driven vehicle component 30. As shown in FIG. 4, the human-powered vehicle component 30 includes an output section 38, a one-way clutch 60, a detection shaft 61, a first bearing 62A, a second bearing 62B, a fifth bearing 62E, a speed reducer 64, and a one-way clutch 66. and a sensor 68.

The housing 40 includes a portion of the crankshaft 12A, a portion of the output section 38, a portion of the electric motor 32, a drive circuit 34, a one-way clutch 60, a first bearing 62A, a second bearing 62B, a third bearing 62C, and a fourth bearing. A bearing 62D, a fifth bearing 62E, a reduction gear 64, a one-way clutch 66, and a sensor 68 are housed therein.

The through hole 42A of the housing 40 includes a first hole 42B and a second hole 42C. The first hole 42B is provided in the second housing 40B. The second hole 42C is provided in the first housing 40A. A first bearing 62A is provided in the first hole 42B of the housing 40. The first bearing 62A rotatably supports the vicinity of one end of the crankshaft 12A in the axial direction CA. The output section 38 has the same axis as the crankshaft 12A. The output portion 38 covers the outer peripheral portion of the crankshaft 12A near the other end in the axial direction CA. Housing 40 supports output section 38 . Specifically, the second bearing 62B provided in the second hole 42C of the housing 40 rotatably supports the output section 38. A fifth bearing 62E is provided between the output portion 38 and the crankshaft 12A. The fifth bearing 62E rotatably supports the output section 38 with respect to the crankshaft 12A. The fifth bearing 62E includes a needle bearing.

The electric motor 32 applies torque to the output section 38 to assist in propulsion of the human-powered vehicle 10 . Electric motor 32 includes a brushless motor. The drive circuit 34 shown in FIG. 4 includes an arithmetic processing unit that executes a predetermined control program. The arithmetic processing device includes, for example, a CPU (Central Processing Unit) or an MPU (Micro Processing Unit). Drive circuit 34 may include one or more microcomputers. In one example, the drive circuit 34 further includes a storage section. The storage unit stores various control programs and information used for various control processes. The storage unit includes, for example, nonvolatile memory and volatile memory.

The speed reducer 64 includes a first rotating shaft 64A, a second rotating shaft 64B, a third bearing 62C, and a fourth bearing 62D. The first rotating shaft 64A is rotatably supported with respect to the housing 40 by a pair of third bearings 62C. The second rotating shaft 64B is rotatably supported with respect to the housing 40 by a pair of fourth bearings 62D. The first rotating shaft 64A is provided with a first gear 64V and a second gear 64W. A third gear 64X and a fourth gear 64Y are provided on the second rotating shaft 64B. The first gear 64V meshes with a gear 32B provided on the output shaft 32A of the electric motor 32. The second gear 64W meshes with a third gear 64X provided on the second rotating shaft 64B. The fourth gear 64Y meshes with a gear 38A provided on the outer periphery of the output section 38. The rotation of the electric motor 32 is transmitted from the gear 32B of the output shaft 32A to the first gear 64V, from the second gear 64W to the third gear 64X, and from the fourth gear 64Y to the gear 38A of the output section 38. The signal is decelerated in three stages during transmission to the output section 38. In this embodiment, the speed reducer 64 decelerates in three stages from the electric motor 32 to the output section 38, but may be configured to decelerate in one stage, two stages, or four or more stages. The speed reducer 64 may include speed reduction mechanisms other than parallel shaft gears. For example, the speed reducer 64 may include a planetary gear mechanism, a worm gear, a helical gear, or a roller speed reducer, or may combine multiple types of speed reducers.

The one-way clutch 66 is provided in a motor driving force transmission path from the output shaft 32A of the electric motor 32 to the output section 38. For example, the one-way clutch 66 is provided between the first rotating shaft 64A and the first gear 64V. The one-way clutch 66 transmits the rotation of the first gear 64V in one direction to the first rotating shaft 64A, and does not transmit the rotation of the first gear 64V in the other direction to the first rotating shaft 64A. The one-way clutch 66 transmits the rotation of the electric motor 32 when the electric motor 32 assists the propulsion of the human-powered vehicle 10, and prevents the output shaft 32A of the electric motor 32 from rotating due to the human-powered driving force. configured. One-way clutch 66 includes, for example, a roller clutch. A one-way clutch 66A similar to the one-way clutch 66 may be provided between the third gear 64X and the second rotating shaft 64B or between the fourth gear 64Y and the second rotating shaft 64B. In this case, the one-way clutch 66 may be omitted.

The detection shaft 61 is formed in a cylindrical shape and is provided on the outer periphery of the crankshaft 12A. One end of the detection shaft 61 in the axial direction is fixed to the crankshaft 12A, for example, by serrations, and the other end is connected to the one-way clutch 60. The detection shaft 61 may be formed integrally with the inner ring of the one-way clutch 60.
The one-way clutch 60 is provided in a transmission path for human power driving force between the crankshaft 12A and the output section 38. One-way clutch 60 includes, for example, a roller clutch or a ratchet type clutch. The one-way clutch 60 is configured to cause the first rotating body 22 to rotate forward when the crank 12 rotates forward, and not to rotate the first rotating body 22 backward when the crank 12 rotates backward. The one-way clutch 60 may be omitted, and in this case, the detection shaft 61 and the output section 38 may be formed integrally.
The sensor 68 outputs a signal according to the force input to the crankshaft 12A. The sensor 68 is arranged on the detection shaft 61 or the outer periphery of the detection shaft 61. Sensor 68 includes, for example, a strain sensor or a magnetostrictive sensor. The sensor 68 is communicatively connected to the drive circuit 34 wirelessly or by wire. Drive circuit 34 controls electric motor 32 in response to the output signal of sensor 68 .

5 and 6 show the first housing 40A. The first housing 40A shown in FIGS. 5 and 6 includes a bottom wall 44A and a side wall 44B. The side wall 44B is provided so as to surround the outer peripheral edge of the bottom wall 44A. The bottom wall 44A and the side wall 44B are integrally molded. As shown in FIG. 5, the first housing 40A includes a housing section 44C, a motor mounting section 44D, a first support section 44E, a second support section 44F, and a plurality of first fixing sections 44G.

The housing portion 44C is recessed from the bottom wall 44A. The housing portion 44C forms a substantially cylindrical housing space. A second hole 42C is formed in the accommodating portion 44C. As shown in FIG. 4, a part of the crankshaft 12A, a part of the output part 38, the one-way clutch 60, and the second bearing 62B are housed in the housing part 44C.

As shown in FIG. 5, the motor mounting portion 44D is provided on the bottom wall 44A. The motor mounting portion 44D is integrally molded with the bottom wall 44A. The motor attachment part 44D has a plurality of insertion holes 44H for attaching the electric motor 32 with bolts 41B (see FIG. 4), and a through hole through which the output shaft 32A of the electric motor 32 passes. and a support portion 44I to which a bearing that rotatably supports is attached. The support portion 44I extends from the bottom wall 44A to the side opposite to the side wall 44B in the axial direction CA of the crankshaft 12A. As shown in FIG. 4, the bolt 41B is inserted into the plurality of insertion holes 44H so that the bolt head is inside the housing 40, and is connected to a screw hole provided in the case 32C of the electric motor 32.

The first support portion 44E rotatably supports the first rotating shaft 64A of the reducer 64. The first support portion 44E is provided on the bottom wall 44A. The first support portion 44E is provided at the motor attachment portion 44D. The first support portion 44E accommodates and supports the third bearing 62C. The first support portion 44E is integrally molded with the bottom wall 44A.

The second support portion 44F is recessed from the bottom wall 44A. The second support portion 44F is provided at a position adjacent to the accommodating portion 44C in the first housing 40A. The second support portion 44F rotatably supports the second rotating shaft 64B of the reducer 64. The second support portion 44F accommodates and supports the fourth bearing 62D. The second support portion 44F is integrally molded with the bottom wall 44A.

As shown in FIG. 5, each of the plurality of first fixing parts 44G includes a first fixing part main body and a first metal fastening member 46A. The first fixing portion main body is provided on the side wall 44B. The first fixing portion main body is integrally molded with the side wall 44B. The first fastening member 46A is attached to the first fixing part main body. In one example, the first fastening member 46A is insert-molded in the first fixing part main body. The first fastening member 46A may be press-fitted into a hole formed in the first fixing part main body, or may be inserted into a hole formed in the first fixing part main body and bonded to the first fixing part main body. . The first fastening member 46A has a substantially cylindrical outer peripheral surface. As shown in FIG. 7A, a knurling 46C is preferably formed on the outer peripheral surface of the first fastening member 46A by knurling. An example of the knurling 46C is a twill knurling. Preferably, in the outer peripheral portion of the first fastening member 46A, a groove 46D in which no knurling is formed is formed in an axially intermediate portion of the first fastening member 46A. The groove 46D may be formed over the entire circumference of the first fastening member 46A around the axis extending in the axial direction, or may be formed intermittently. As shown in FIG. 7(b), the first fastening member 46A is provided with a hole 46E that opens at one end of the first fastening member 46A in the axial direction of the first fastening member 46A. A female thread 46F is formed on the inner peripheral surface of the first fastening member 46A that defines the hole 46E. Preferably, a groove 46D in which no knurling is formed is also formed near the opening in the outer peripheral portion of the first fastening member 46A. By forming the knurling 46C and the groove 46D, when the first fastening member 46A is insert-molded into the first fixing part main body, the first fastening member 46A can be firmly fixed to the first fixing part main body. Preferably, the hole 46E does not penetrate the first fastening member 46A in the axial direction of the first fastening member 46A. Thereby, when insert-molding the first fastening member 46A into the first fixing portion main body, it is possible to suppress resin from entering the hole 46E. The first fastening member 46A is provided on the first fixing part main body so that the hole 46E is exposed. Preferably, the first fastening member 46A is fixed to the first fixing portion main body such that the axial direction of the first fastening member 46A is parallel to the axial direction CA of the crankshaft 12A.

As shown in FIG. 6, the first housing 40A includes a first wall 44J, a second wall 44K, and a third wall 44L. The first wall portion 44J, the second wall portion 44K, and the third wall portion 44L are integrally formed with the side wall 44B and extend in the axial direction CA of the crankshaft 12A. The first wall portion 44J, the second wall portion 44K, and the third wall portion 44L include a portion of the side wall 44B and have portions extending on the opposite side of the side wall 44B with respect to the bottom wall 44A. The first wall portion 44J is provided around the motor mounting portion 44D. Regarding a second plane perpendicular to a first plane passing through the axis of the crankshaft 12A and the axis of the output shaft 32A of the electric motor 32 and passing through the axis of the output shaft 32A of the electric motor 32, preferably, the crank A first wall portion 44J is provided in a region opposite to the region where the shaft 12A is arranged. The second wall portion 44K and the third wall portion 44L are integrally formed with the housing portion 44C. The second wall portion 44K and the third wall portion 44L are provided at intervals in the circumferential direction around the crankshaft 12A. Preferably, the second wall portion 44K and the third wall portion 44L are provided at an interval of 90 degrees or more around the crankshaft 12A.

A mounting portion 50 is provided in the first housing 40A. The attachment portion 50 is formed integrally with the first housing 40A. As shown in FIG. 5, the attachment section 50 includes a plurality of attachment sections 50A, 50B, and 50C. The attachment portion 50A is fixed to the first wall portion 44J. The attachment portion 50B and the attachment portion 50C are fixed to the housing portion 44C, the second wall portion 44K, and the third wall portion 44L, respectively. The mounting portion 50B and the mounting portion 50C are spaced apart from each other in the axial direction CA of the crankshaft 12A.

The attachment portion 50A includes a first attachment portion 52A and a second attachment portion 52B. The first mounting portion 52A and the second mounting portion 52B each protrude from the first wall portion 44J toward the outside of the first housing 40A along a plane orthogonal to the axial direction CA of the crankshaft 12A.

The attachment portion 50B includes a third attachment portion 52C and a fourth attachment portion 52E. The third mounting portion 52C protrudes from the second wall portion 44K toward the outside of the first housing 40A along a plane perpendicular to the axial direction CA of the crankshaft 12A. The fourth mounting portion 52E protrudes from the third wall portion 44L toward the outside of the first housing 40A along a plane perpendicular to the axial direction CA of the crankshaft 12A.

The attachment portion 50C includes a third attachment portion 52D and a fourth attachment portion 52F. The third mounting portion 52D protrudes from the second wall portion 44K toward the outside of the first housing 40A along a plane orthogonal to the axial direction CA of the crankshaft 12A. The fourth mounting portion 52F protrudes from the third wall portion 44L toward the outside of the first housing 40A along a plane perpendicular to the axial direction CA of the crankshaft 12A.

The attachment parts 50A, 50B include fixing parts 54A, 54B fixed to the housing 40. The fixing parts 54A and 54B are integrally formed with the housing 40. Preferably, the fixing parts 54A, 54B are insert molded into the housing 40. The fixing parts 54A and 54B may be fixed to the housing 40 with at least one of a fastener and an adhesive. Fasteners include bolts. Preferably, the human powered vehicle component 30 further includes a nut 56 . Preferably, the attachment portions 50A, 50B, 50C include a hole 52G in which a nut 56 is provided. Preferably, the human-powered vehicle component 30 further includes a bearing part provided in the housing 40 and rotatably supporting the crankshaft 12A, and a metal support part 54C connected to the mounting part 50C and supporting the bearing part. include. The bearing portion that rotatably supports the crankshaft 12A includes a second bearing 62B.

As shown in FIGS. 8 and 9, the fixing portion 54A of the attachment portion 50A connects the first attachment portion 52A and the second attachment portion 52B. The fixing portion 54A is formed of a plate-shaped metal plate. In this embodiment, the fixing portion 54A is insert-molded in the first wall portion 44J and embedded in the first wall portion 44J. Preferably, the first attachment portion 52A, the second attachment portion 52B, and the fixing portion 54A are integrally formed. Preferably, the first attachment portion 52A, the second attachment portion 52B, and the fixing portion 54A are formed of sheet metal. The first attachment portion 52A, the second attachment portion 52B, and the fixing portion 54A may be formed by pressing sheet metal. In this case, the attachment portion 50A can be formed by bending the first attachment portion 52A and the second attachment portion 52B with respect to the fixed portion 54A.

Each hole 52G of the first attachment part 52A and the second attachment part 52B includes, for example, a long hole. The elongated holes each extend in the direction in which the first attachment portion 52A and the second attachment portion 52B protrude. As shown in FIGS. 5 and 6, the nut 56 attached to the hole 52G includes a first portion 56A and a second portion 56B. The first portion 56A and the second portion 56B each have a cylindrical shape. The outer diameter of the first portion 56A is smaller than the outer diameter of the second portion 56B. The width of the long hole in the short direction is preferably approximately equal to the outer diameter of the first portion 56A. Preferably, the first portion 56A is press-fitted into the hole 52G. The second portion 56B faces the peripheral portion of the hole 52G of the first attachment portion 52A and the second attachment portion 52B with the first portion 56A inserted into the hole 52G. The nut 56 includes a through hole 56C passing through a first portion 56A and a second portion 56B. A female thread is formed on the inner circumferential surface of the through hole 56C. In this embodiment, the width of the elongated hole in the longitudinal direction is formed to be larger than the outer diameter of the first portion 56A, and the nut 56 is movable in the longitudinal direction of the elongated hole. Preferably, the longitudinal direction of the elongated hole is parallel to the direction in which the first attachment portion 52A and the second attachment portion 52B protrude from the housing 40. Thereby, the relative position of the nut 56 with respect to the housing 40 can be adjusted. The shape of each hole 52G of the first attachment part 52A and the second attachment part 52B can be changed arbitrarily. In one example, the shape of at least one of the hole 52G of the first attachment part 52A and the hole 52G of the second attachment part 52B may be circular when viewed from the direction in which the hole 52G extends.

The fixing portion 54A includes a plurality of through holes 54D. The fixing portions 54A of the plurality of through holes 54D are provided at intervals from each other. The plurality of through holes 54D penetrate the fixing portion 54A in the thickness direction. The plurality of through holes 54D are filled with a resin material forming the first housing 40A when the fixing portion 54A is insert molded into the first housing 40A. The number, position, and shape of the plurality of through holes 54D can be changed arbitrarily. In one example, at least one of the plurality of through holes 54D may include a long hole.

The fixing portion 54B of the attachment portion 50B extends over the second wall portion 44K, the housing portion 44C, and the third wall portion 44L (see FIG. 5). Preferably, the fixing portion 54B is insert-molded in the second wall portion 44K, the housing portion 44C, and the third wall portion 44L, and is embedded in the second wall portion 44K, the housing portion 44C, and the third wall portion 44L. As shown in FIG. 10, preferably, the third attachment portion 52C, the fourth attachment portion 52E, and the fixing portion 54B are integrally formed. Preferably, the third attachment portion 52C, the fourth attachment portion 52E, and the fixing portion 54B are formed of sheet metal. The third attachment portion 52C, the fourth attachment portion 52E, and the fixing portion 54B may be formed by pressing sheet metal.

The holes 52G of the third attachment part 52C and the fourth attachment part 52E are the same as the holes 52G of the first attachment part 52A and the second attachment part 52B. A nut 56 is attached to each of the hole 52G of the third attachment portion 52C and the hole 52G of the fourth attachment portion 52E.

The fixing portion 54B includes a plurality of through holes 54F. The plurality of through holes 54F are provided at intervals in the circumferential direction around the axial direction CA of the crankshaft 12A. The plurality of through holes 54F penetrate the fixing portion 54B in the thickness direction. The plurality of through holes 54F are filled with a resin material forming the first housing 40A when the fixing portion 54B is insert molded into the first housing 40A. The number, formation position, and shape of the plurality of through holes 54F can be changed arbitrarily. In one example, the shape of at least one of the plurality of through holes 54F may include a circular shape in plan view.

The fixing part 54B includes a first connecting part 54G connected to the third attaching part 52C, and a second connecting part 54H connected to the fourth attaching part 52E. Preferably, the first connecting portion 54G and the second connecting portion 54H are each formed by being bent with respect to other portions of the fixing portion 54B. More preferably, the first connecting portion 54G and the second connecting portion 54H are each formed by being bent at 90 degrees with respect to the other portion of the fixing portion 54B. Preferably, the third attaching portion 52C is formed by being bent with respect to the first connecting portion 54G on the opposite side of the other portion of the fixing portion 54B. More preferably, the third attachment part 52C is formed by being bent at 90 degrees with respect to the first connection part 54G. Preferably, the fourth mounting portion 52E is formed by being bent with respect to the second connecting portion 54H on the opposite side of the other portion of the fixing portion 54B. More preferably, the fourth attachment part 52E is bent at 90 degrees with respect to the second connection part 54H. Preferably, the first connecting portion 54G is embedded in the second wall portion 44K, and the second connecting portion 54H is embedded in the third wall portion 44L. At least one of the first connecting portion 54G and the second connecting portion 54H may be omitted from the attachment portion 50B. The first connecting portion 54G may not be bent relative to the other portions of the fixed portion 54B, and in this case, the third attachment portion 52C may not be bent relative to the first connecting portion 54G. The second connecting portion 54H does not need to be bent relative to other parts of the fixed portion 54B, and in this case, the fourth attachment portion 52E cannot be bent relative to the second connecting portion 54H.

As shown in FIG. 11, preferably, the attachment portion 50C and the support portion 54C are integrally formed. The attachment portion 50C includes a third attachment portion 52D, a fourth attachment portion 52F, and a fixing portion 54I. The support portion 54C is provided on the fixed portion 54I. The support portion 54C is formed in a cylindrical shape. The second bearing 62B (see FIG. 4) is attached to the inner peripheral surface of the support portion 54C. In one example, the fixing portion 54I is formed in an annular shape. Preferably, the third attachment part 52D, the fourth attachment part 52F, and the fixing part 54I are integrally formed. Preferably, the third attachment part 52D, the fourth attachment part 52F, and the fixing part 54I are formed of sheet metal. The third attachment portion 52D, the fourth attachment portion 52F, and the fixing portion 54I can be formed by pressing sheet metal.

The support portion 54C is formed integrally with the fixed portion 54I. In one example, the support portion 54C is formed in a cylindrical shape extending from the inner peripheral edge of the fixed portion 54I along the axial direction CA of the crankshaft 12A. The support portion 54C and the fixed portion 54I are formed by, for example, burring or drawing. The support portion 54C is formed coaxially with the crankshaft 12A. Preferably, the support portion 54C is insert molded into the housing 40. The support portion 54C is, for example, insert molded into the housing portion 44C and embedded in the housing portion 44C. The support portion 54C includes an outer ring support portion 54J provided to support the outer ring of the second bearing 62B in the axial direction CA of the crankshaft 12A. The outer ring support portion 54J is provided at one end of the support portion 54C in the axial direction CA of the crankshaft 12A. The inner peripheral surfaces of the outer ring support portion 54J and the support portion 54C are exposed from the housing portion 44C.

The fixing part 54I includes a first connecting part 54K that connects the third attaching part 52D, and a second connecting part 54L that connects the fourth attaching part 52F. Preferably, the first connecting portion 54K and the second connecting portion 54L are each formed by being bent relative to other portions of the fixing portion 54I. The third attachment portion 52D is formed by being bent relative to the first connection portion 54K. The fourth attachment portion 52F is formed by being bent relative to the second connection portion 54L.

The holes 52G of the third attachment part 52D and the fourth attachment part 52F are the same as the holes 52G of the first attachment part 52A and the second attachment part 52B. A nut 56 is attached to each of the hole 52G of the third attachment portion 52D and the hole 52G of the fourth attachment portion 52F.

As shown in FIG. 12, the second housing 40B includes a bottom wall 48A and a side wall 48B. The side wall 48B is provided so as to surround the outer peripheral edge of the bottom wall 48A. The second housing 40B includes a housing portion 48C, a first support portion 48D, a second support portion 48E, a third support portion 48F, and a plurality of second fixing portions 48G. The side wall 48B of the second housing 40B abuts the side wall 48B of the first housing 40A. The side wall 48B of the second housing 40B may be omitted.

The housing portion 48C is recessed from the bottom wall 48A. The housing portion 48C forms a substantially cylindrical housing space. A first hole 42B is formed in the housing portion 48C. As shown in FIG. 4, the first bearing 62A is housed in the housing portion 48C.
The first support portion 48D and the second support portion 48E are recessed from the bottom wall 48A. The first support portion 48D rotatably supports the first rotating shaft 64A of the reducer 64. The first support portion 48D accommodates and supports the third bearing 62C. The second support portion 48E is provided at a position adjacent to the first support portion 48D in the second housing 40B. The second support portion 48E rotatably supports the second rotating shaft 64B of the reducer 64. The second support portion 48E accommodates and supports the fourth bearing 62D. The third support portion 48F is formed to protrude from the bottom wall 48A. The third support portion 48F is formed on the opposite side of the first support portion 48D from the side where the accommodating portion 48C is formed. The third support portion 48F supports the circuit board 34A (see FIG. 4) on which the drive circuit 34 is formed.

Each of the plurality of second fixing parts 48G includes a second fixing part main body and a second fastening member 46B made of metal. The second fixing portion main body is provided on the side wall 44B. The second fixing portion main body is integrally molded with the side wall 44B. The second fastening member 46B is attached to the second fixing part main body. In one example, the second fastening members 46B are each insert-molded in the second fixing part main body. The second fastening member 46B may be press-fitted into a hole formed in the second fixing part main body, or may be inserted into a hole formed in the second fixing part main body and bonded to the second fixing part main body. . The second fastening member 46B has a substantially cylindrical outer peripheral surface. The second fastening member 46B has a knurling 46C on its outer peripheral surface similarly to the first fastening member 46A. The second fastening member 46B, unlike the first fastening member 46A, has a through hole 46G through which the bolt 41A passes. The second fastening member 46B may be omitted, and in this case, an insertion hole into which the bolt 41A is inserted is formed in the plurality of second fixing parts 48G. The second fastening member 46B may have a groove 46D on the outer circumferential surface similarly to the first fastening member 46A.

A metal reinforcing member 49 is provided in the second housing 40B. The reinforcing member 49 is integrally formed with the second housing 40B. The reinforcing member 49 is insert molded into the second housing 40B. The reinforcing member 49 is attached to the housing portion 48C and its surrounding portion.

As shown in FIG. 13, the reinforcing member 49 includes a first flat plate portion 49A, a second flat plate portion 49B, and a bent portion 49C. The first flat plate portion 49A, the second flat plate portion 49B, and the bent portion 49C are formed of sheet metal. The first flat plate portion 49A, the second flat plate portion 49B, and the bent portion 49C are integrally formed by press working a sheet metal.

The first flat plate portion 49A includes a through hole 49D into which the crankshaft 12A can be inserted, and a flange portion 49E that constitutes the through hole 49D and extends from the first flat plate portion 49A in the axial direction CA of the crankshaft 12A. The inner peripheral surface of the flange portion 49E forming the through hole 49D is exposed from the housing portion 48C. A plurality of through holes 49F are formed in the first flat plate portion 49A. The plurality of through holes 49F penetrate the first flat plate portion 49A in the thickness direction. The shape of the plurality of through holes 49F in plan view is, for example, circular. The plurality of through holes 49F are formed at intervals in the circumferential direction around the crankshaft 12A. The plurality of through holes 49F are filled with a resin material forming the second housing 40B when the reinforcing member 49 is insert-molded into the second housing 40B.

The second flat plate part 49B is provided so as to surround a part of the first flat plate part 49A. The second flat plate portion 49B is provided along the side wall 48B. The second flat plate portion 49B includes a plurality of through holes 49F. The plurality of through holes 49F are formed at intervals in the circumferential direction around the crankshaft 12A. The shape of the plurality of through holes 49F in plan view is, for example, a long hole. The plurality of through holes 49F are filled with a resin material forming the second housing 40B when the reinforcing member 49 is insert-molded into the second housing 40B. The number, formation position, and shape of the plurality of through holes 49F can be changed arbitrarily. In the axial direction CA of the crankshaft 12A, the first flat plate part 49A and the second flat plate part 49B are arranged offset, and the first flat plate part 49A and the second flat plate part 49B are connected by a bent part 49C.

An example of a procedure for attaching the human-powered vehicle component 30 to the bracket 28 will be described with reference to FIG. 14. In FIG. 14, a procedure for attaching the human-powered vehicle component 30 to the bracket 28 via the attachment portion 50A of the attachment portions 50 will be described. Note that the procedure for attaching the human-powered vehicle component 30 to the bracket 28 via the attachment portion 50B and the attachment portion 50C is the same. FIG. 14 shows the shape of the bracket 28 in a simplified manner for convenience of explanation.

As shown in FIG. 14(a), the first mounting portion 52A is placed close to one flange 28B of the bracket 28. In FIG. 14(a), the first mounting portion 52A is in contact with the flange 28B. Then, the first mounting portion 52A is fixed to one flange 28B with bolts 36. As shown in FIG. 14(a), a gap G1 may be formed between the other flange 28B of the bracket 28 and the second mounting portion 52B.

Next, as shown in FIG. 14(b), the second mounting portion 52B is fixed to the other flange 28B with bolts 36. When the bolt 36 tightens the nut 56, the second mounting portion 52B is bent toward the other flange 28B, and the gap G1 becomes smaller. Thereby, the component 30 for a human-powered vehicle can be stably fixed to the bracket 28 while suppressing the shaking of the component 30 for a human-powered vehicle with respect to the bracket 28 .

As a structure for attaching the human-powered vehicle component 30 to the bracket 28, for example, structures shown in FIGS. 15 to 17 can be adopted. 15 to 17 show the structure of the first mounting portion 52A and the mounting structure between the first mounting portion 52A and the bracket 28. The structures shown in FIGS. 15 to 17 differ in the structure of a portion of the nut 56 and the structure of a portion of the first mounting portion 52A.

Preferably, the attachment portion 50 further includes a first flange portion formed at the edge of the hole 52G. Preferably, the first flange portion is formed by burring. In one example, the first attachment part 52A of the attachment parts 50 further includes a first flange part 52H formed at the edge of the hole 52G, and a knurling 52I formed on the inner peripheral surface forming the hole 52G. . The first flange portion 52H is formed by burring. Although not shown, the second attachment portion 52B, the third attachment portions 52C, 52D, and the fourth attachment portions 52E, 52F may similarly include the first flange portion 52H or may include the knurling 52I. The knurling 52I may be omitted.

The nut 56 includes a knurl 56D provided on the outer periphery of the first portion 56A, and a slit 56E communicating from the outer periphery of the first portion 56A to the through hole 56C. The slit 56E extends in the circumferential direction of the first portion 56A. The knurling 56D extends in the axial direction CA of the crankshaft 12A. When the first portion 56A of the nut 56 is attached to the hole 52G of the first attachment portion 52A, the knurling 52I of the first attachment portion 52A and the knurl 56D of the first portion 56A engage with each other to prevent rotation of the nut 56 around the axis. It can be suppressed.

Nut 56 includes a locking member 58 disposed in slit 56E. The locking member 58 is made of a material having a lower hardness than the nut 56. The locking member 58 is made of resin, for example. The locking member 58 is formed to close the slit 56E of the nut 56, and has an arc shape, for example. The locking member 58 may be press-fitted into the slit 56E, or may be adhered to the nut 56 with an adhesive. Preferably, the locking member 58 is constructed of a deformable material. The thickness of the locking member 58 in the radial direction of the nut 56 is formed to be larger than the depth of the slit 56E in the radial direction of the nut 56.

In the direction along the axis of the nut 56, the length L1 of the first portion 56A is longer than the thickness L2 of the first mounting portion 52A including the first flange portion 52H. In the axial direction CA of the crankshaft 12A, the distal end surface of the first portion 56A of the nut 56 is in contact with the flange 28B of the bracket 28 when the nut 56 is press-fitted into the hole 52G of the first mounting portion 52A. It can protrude from the attachment portion 52A in the axial direction CA. The outer peripheral surface of the locking member 58 contacts the knurling 52I. The inner circumferential surface of the locking member 58 is arranged at the same position in the radial direction of the nut 56 as the female thread formed in the through hole 56C of the nut 56, or slightly protrudes from the inner circumferential surface of the female thread.

As shown in FIG. 17, the first attachment portion 52A is attached to the bracket 28 by a bolt 36 inserted into a through hole 56C of a nut 56. The bolt 36 is arranged so that the end face of the nut 56 in the axial direction CA of the crankshaft 12A is in contact with the flange 28B of the bracket 28, or the gap formed between the end face of the nut 56 and the flange 28B in the axial direction CA is minute. It is screwed into the nut 56 in this state. The flange 28B is sandwiched between the first mounting portion 52A and the bolt head 36A of the bolt 36. The male thread 36B of the bolt 36 bites into the locking member 58 with the inner peripheral surface of the locking member 58 being plastically deformed. The locking member 58 may be made of any material as long as the male thread 36B of the bolt 36 can bite into the locking member 58, and may be made of aluminum, for example, in addition to resin. The locking member 58 may be omitted.

As shown in FIGS. 16 and 17, a gap G2 is formed between the second portion 56B of the nut 56 and the first mounting portion 52A in the axial direction CA of the crankshaft 12A. By adjusting the position of the nut 56 with respect to the first mounting portion 52A so as to reduce the gap G2, the first portion 56A of the nut 56 protrudes from the first mounting portion 52A toward the flange 28B of the bracket 28. The first portion 56A of the nut 56 and the flange 28B of the bracket 28 are in contact, or the gap between the first portion 56A of the nut 56 and the flange 28B of the bracket 28 is between the first mounting portion 52A and the flange 28B. By making the gap smaller than the gap , wobbling of the human-powered vehicle component 30 with respect to the bracket 28 can be suppressed, and the human-powered vehicle component 30 can be stably fixed to the bracket 28.

(Second embodiment)
The configuration of the human-powered vehicle component 30 of the second embodiment will be described with reference to FIGS. 18 to 20. The human-powered vehicle component 30 of this embodiment differs from the human-powered vehicle component 30 of the first embodiment in the configuration of the mounting portion. In the following description, the same reference numerals are given to the same components as those of the human-powered vehicle component 30 of the first embodiment, and the description thereof will be omitted.

As shown in FIG. 18, the housing 40 includes a first housing 40A, a second housing 40B (see FIG. 12), and a metal attachment portion 70. The attachment part 70 is provided in the housing 40 so as to protrude from the housing 40, and is attached to the frame 16 of the human-powered vehicle 10 (see FIG. 1).

The first housing 40A includes a mounting portion 70. The attachment portion 70 has flexibility. The attachment part 70 is integrated into the first housing 40A. As shown in FIG. 18, the attachment section 70 includes attachment sections 70A and 70B. The attachment portion 70A has the same configuration as the attachment portion 70A of the first embodiment. The attachment portion 70A is provided integrally with the housing 40 similarly to the attachment portion 50A of the first embodiment.

As shown in FIGS. 18 and 19, the attachment portion 70B includes a first attachment portion 72A and a second attachment portion 72B. The first attachment portion 72A and the second attachment portion 72B are arranged at intervals in the axial direction CA of the crankshaft 12A. The attachment portion 70 includes a fifth attachment portion 72C and a sixth attachment portion 72D. The first attachment portion 72A, the second attachment portion 72B, and the fifth attachment portion 72C are arranged at intervals in the circumferential direction around the crankshaft 12A. The fifth attachment portion 72C and the sixth attachment portion 72D are arranged at intervals in the axial direction CA of the crankshaft 12A.

The first mounting portion 72A and the second mounting portion 72B each protrude from the second wall portion 44K toward the outside of the first housing 40A along a plane orthogonal to the axial direction CA of the crankshaft 12A. The fifth attachment portion 72C and the sixth attachment portion 72D protrude from the third wall portion 44L toward the outside of the first housing 40A along a plane orthogonal to the axial direction CA of the crankshaft 12A.

The attachment portion 70B includes a hole 72E in which the nut 56 is provided. The holes 72E are formed in each of the first attachment portion 72A, the second attachment portion 72B, the fifth attachment portion 72C, and the sixth attachment portion 72D. The hole 72E of the first attachment part 72A, the hole 72E of the second attachment part 72B, the hole 72E of the fifth attachment part 72C, and the hole 72E of the sixth attachment part 72D have the same shape. A nut 56 is attached to each hole 72E. The hole 72E and the nut 56 can also be changed to the structures shown in FIGS. 15 to 17.

Preferably, the mounting portion 70B includes fixing portions 74A, 74B, and 74I fixed to the housing 40. Preferably, the fixing parts 74A, 74B, and 74I are integrally formed with the housing 40. Preferably, the fixing parts 74A, 74B, and 74I are insert-molded in the housing 40.

The fixing portion 74A connects the first attachment portion 72A and the second attachment portion 72B. Preferably, the fixing portion 74A is insert molded into the second wall portion 44K and embedded in the second wall portion 44K. Preferably, the first attachment portion 72A, the second attachment portion 72B, and the fixing portion 74A are integrally formed. Preferably, the first attachment portion 72A, the second attachment portion 72B, and the fixing portion 74A are formed of sheet metal. The first attachment portion 72A, the second attachment portion 72B, and the fixing portion 74A may be formed by pressing sheet metal. In this case, the attachment portion 70A can be formed by bending the first attachment portion 72A and the second attachment portion 72B with respect to the fixed portion 74A. The fixing portion 74A includes a through hole 74C. The through hole 74C is formed, for example, in a rectangular shape when the fixing portion 74A is viewed from the front. The through hole 74C is filled with a resin material forming the first housing 40A when the fixing portion 74A is insert molded into the first housing 40A.

The fixing portion 74B connects the fifth attachment portion 72C and the sixth attachment portion 72D. Preferably, the fixing portion 74B is insert molded into the third wall portion 44L and embedded in the third wall portion 44L. Preferably, the fifth attachment portion 72C, the sixth attachment portion 72D, and the fixing portion 74B are integrally formed. Preferably, the fifth attachment portion 72C, the sixth attachment portion 72D, and the fixing portion 74B are formed of sheet metal. The fifth attachment portion 72C, the sixth attachment portion 72D, and the fixing portion 74B may be formed by pressing sheet metal. In this case, the attachment portion 70A can be formed by bending the fifth attachment portion 72C and the sixth attachment portion 72D with respect to the fixed portion 74B. The fixing portion 74B includes a through hole 74D. The through hole 74D is formed, for example, in a rectangular shape when the fixing portion 74B is viewed from the front. The through hole 74D is filled with a resin material forming the first housing 40A when the fixing portion 74B is insert molded into the first housing 40A.

The human-powered vehicle component 30 further includes a metal support part 74E that is connected to the attachment part 70B and supports a bearing part that rotatably supports the crankshaft 12A. The attachment portion 70B and the support portion 74E are integrally formed. The bearing portion that rotatably supports the crankshaft 12A includes a second bearing 62B.

The attachment part 70B and the support part 74E are connected by a fixing part 74I. As shown in FIG. 19, preferably, the attachment portion 70B and the support portion 74E are integrally formed. The support portion 74E is provided on the fixed portion 74I. The support portion 74E is formed in a cylindrical shape. The second bearing 62B (see FIG. 4) is attached to the inner peripheral surface of the support portion 74E. In one example, the fixing portion 74I is formed in an annular shape. Preferably, the second attachment portion 72B, the sixth attachment portion 72D, and the fixing portion 74I are integrally formed. Preferably, the second attachment portion 72B, the sixth attachment portion 72D, and the fixing portion 74I are formed of sheet metal. The second attachment portion 72B, the sixth attachment portion 72D, and the fixing portion 74I can be formed by pressing sheet metal. The fixing part 74I includes a first connecting part 78A connected to the second attaching part 72B and a second connecting part 78B connected to the sixth attaching part 72D.

The support portion 74E is formed integrally with the fixed portion 74I. In one example, the support portion 74E is formed in a cylindrical shape extending from the inner peripheral edge of the fixed portion 74I along the axial direction CA of the crankshaft 12A. The support portion 74E and the fixed portion 74I are formed by, for example, burring or drawing. The support portion 74E is formed coaxially with the crankshaft 12A. Preferably, the support portion 74E is insert molded into the housing 40. The support portion 74E is, for example, insert molded into the housing portion 44C and embedded in the housing portion 44C. The support portion 74E includes an outer ring support portion 74J provided to support the outer ring of the second bearing 62B in the axial direction CA of the crankshaft 12A. The outer ring support portion 74J is provided at one end of the support portion 74E in the axial direction CA of the crankshaft 12A. The inner peripheral surfaces of the outer ring support portion 74J and the support portion 74E are exposed from the housing portion 44C.

The shape of the support portion 74E is the same as the shape of the support portion 54C of the first embodiment. The shape of the fixing portion 74I is the same as the shape of the fixing portion 54I of the first embodiment. The shape of the outer ring support portion 74J is the same as the shape of the outer ring support portion 54J of the first embodiment.

As shown in FIG. 19, preferably, the first attachment portion 72A, the second attachment portion 72B, the fifth attachment portion 72C, and the fixing portion 74A are integrally formed. Preferably, the first attachment portion 72A, the second attachment portion 72B, the fifth attachment portion 72C, and the fixing portion 74A are formed of sheet metal. Preferably, the first attachment portion 72A, the second attachment portion 72B, the fifth attachment portion 72C, the sixth attachment portion 72D, and the fixing portions 74A and 74B are integrally formed. Preferably, the first attachment portion 72A, the second attachment portion 72B, the fifth attachment portion 72C, the sixth attachment portion 72D, and the fixing portions 74A and 74B are formed of sheet metal. In FIG. 19, the first attachment portion 72A, the second attachment portion 72B, the fifth attachment portion 72C, the sixth attachment portion 72D, and the fixing portions 74A, 74B, and 74I are integrally formed. The first attachment portion 72A, the second attachment portion 72B, the fifth attachment portion 72C, the sixth attachment portion 72D, and the fixing portions 74A, 74B, and 74I are formed of sheet metal.

FIG. 20 shows a developed view of the attachment portion 70B. As shown in FIG. 20, the second attachment part 72B is provided in the through hole 74C of the fixing part 74A. In FIG. 20, a portion of the through hole 74C is filled with the second attachment portion 72B. A rectangular through hole 74C is formed by bending the fixing portion 74A from the second attachment portion 72B. The sixth attachment portion 72D is provided within the through hole 74D of the fixing portion 74B. In FIG. 20, a portion of the through hole 74D is filled with the sixth attachment portion 72D. A rectangular through hole 74D is formed by bending the fixing portion 74B from the sixth attachment portion 72D.

(Third embodiment)
The configuration of the human-powered vehicle component 30 of the third embodiment will be described with reference to FIGS. 21 to 26. The human-powered vehicle component 30 of this embodiment differs from the human-powered vehicle component 30 of the first embodiment in the mounting configuration of the electric motor 32 to the housing 40. In the following description, the same reference numerals are given to the same components as those of the human-powered vehicle component 30 of the first embodiment, and the description thereof will be omitted.

As shown in FIG. 21, electric motor 32 is provided in housing 40. Electric motor 32 has a stator 32D. The electric motor 32 further includes a rotor 32E that rotates together with the output shaft 32A, a first bearing 32F and a second bearing 32G that rotatably support the output shaft 32A, and a support member 32H that supports the second bearing 32G. have Stator 32D includes a stator core and a coil wound around the stator core.

Stator 32D is insert molded into housing 40. In FIG. 21, the stator 32D is insert molded into the first housing 40A. The motor mounting portion 44D of the first housing 40A includes a molded portion 44M that covers the entire stator 32D, and a support portion 44N that supports the first bearing 32F. The mold section 44M includes a housing section 44Q that houses the rotor 32E. Accommodating portion 44Q includes a through hole having an inner diameter that is approximately the same as the inner diameter of stator 32D. A female thread 44P is formed on the side of the housing portion 44Q opposite to the support portion 44N in the axial direction CA of the crankshaft 12A.

The support member 32H is formed into a cup shape including a bottom portion 32I and a cylindrical portion 32J. A male thread 32K is formed on the outer periphery of the cylindrical portion 32J. The support member 32H is attached to the mold part 44M by screwing the male thread 32K into the female thread 44P.

An example of the first bearing 32F and the second bearing 32G is a rolling bearing. The first bearing 32F rotatably supports the output shaft 32A by having an outer ring attached to the support portion 44N and an inner ring attached to the output shaft 32A. The second bearing 32G rotatably supports the output shaft 32A by having an outer ring attached to the support member 32H and an inner ring attached to the output shaft 32A.

The human powered vehicle component 30 may further include a reinforcing member 31 made of metal. In one example, as shown in FIG. 22, reinforcing member 31 is preferably provided within housing 40. Preferably, the reinforcing member 31 contacts the electric motor 32. Preferably, the reinforcing member 31 is formed integrally with the attachment portion 50A.

The reinforcing member 31 has a support portion 31A that supports the first bearing 32F, and a contact portion 31B that contacts the stator 32D. The support portion 31A is provided at the support portion 44N of the first housing 40A. The support portion 31A supports the outer ring of the first bearing 32F in the axial direction of the output shaft 32A. The contact portion 31B is formed, for example, in a substantially cylindrical shape. Contact portion 31B contacts the outer peripheral surface of stator 32D.

The reinforcing member 31 and the attachment portion 50A may be formed separately. In this case, the reinforcing member 31 and the attachment part 50A may be connected, or the reinforcing member 31 and the attachment part 50A may be arranged apart from each other. The reinforcing member 31 may be formed of a sheet metal.

The shape of the reinforcing member 31 can be changed arbitrarily. In one example, the contact portion 31B of the reinforcing member 31 may be provided so as to surround the entire stator 32D in the axial direction of the output shaft 32A. A portion of the contact portion 31B may be cut out in the circumferential direction around the output shaft 32A. The reinforcing member 31 may have a flat plate shape in which at least one of the support portion 31A and the contact portion 31B is omitted.

23 to 26 show an example of the configuration of the rotor 32E. As shown in FIGS. 23 to 26, the rotor 32E has a magnet-embedded rotor structure and includes a rotor core 80 and a permanent magnet 86. Rotor core 80 is fixed to output shaft 32A (see FIGS. 21 and 22).

As shown in FIG. 23, rotor core 80 is made of soft magnetic material. Rotor core 80 includes two types of laminations: a first lamination 82A and a second lamination 82B. The first laminations 82A constitute both ends of the rotor core 80 in the axial direction of the output shaft 32A. The second lamination 82B constitutes an intermediate portion of the rotor core 80 sandwiched between the first laminations 82A at both ends. The rotor core 80 is configured by laminating a first lamination 82A and a second lamination 82B in the axial direction of the output shaft 32A. The first lamination 82A and the second lamination 82B are formed, for example, by press working. In FIG. 23, for convenience of explanation, the number of second laminations 82B is shown reduced.

As shown in FIG. 24, the first lamination 82A includes a first hole 84A into which the output shaft 32A is inserted, and a plurality of second holes 84B into which the permanent magnets 86 are inserted. The second holes 84B are spaced apart in the circumferential direction around the output shaft 32A. In one example, the pitches of the plurality of second holes 84B are equal in the circumferential direction. The second hole 84B is formed in a substantially rectangular shape whose length is in the radial direction in a plan view of the first lamination 82A.

The first lamination 82A includes a plurality of protrusions 84C for determining the position of the permanent magnet 86 in the radial direction. The protrusion 84C includes a first protrusion 84D provided on the outer circumferential edge of the second hole 84B, and a second protrusion 84E provided on the inner circumference of the second hole 84B. The two first protrusions 84D provided in one second hole 84B narrow the circumferential width of the outer periphery of the second hole 84B. The two second protrusions 84E provided in one second hole 84B narrow the circumferential width of the inner peripheral portion of the second hole 84B. The radial movement of the permanent magnet 86 is restricted by the plurality of projections 84C. Note that the second protrusion 84E may be omitted from the protrusion 84C.

As shown in FIG. 25, compared to the first lamination 82A, the second lamination 82B has a third hole 84F connected to two second holes adjacent in the circumferential direction around the output shaft 32A. The difference is that . In the second hole 84B connected to the third hole 84F, one of the second protrusions 84E is omitted. The first lamination 82A includes a first tooth portion connected to the center portion and a second tooth portion spaced apart from the center portion. The first lamination 82A is laminated with respect to the adjacent first lamination 82A while being rotated by a predetermined angle around the rotation axis. In this embodiment, the first laminations 82A are stacked such that the first teeth portions and the second teeth portions alternately overlap in the stacking direction.

As shown in FIG. 26, the permanent magnet 86 is formed into a flat plate shape. Permanent magnet 86 is inserted into second hole 84B. The permanent magnet 86 is fixed to the inner surface of the rotor core 80 forming the second hole 84B, for example, with an adhesive. As shown in FIG. 26, the permanent magnet 86 is magnetized such that the north pole and the south pole are adjacent to each other in the circumferential direction around the output shaft 32A. The magnetic poles of permanent magnets 86 that are adjacent to each other in the circumferential direction are in opposite directions. That is, the magnetic poles of the permanent magnets 86 that face each other in the circumferential direction are the same.

(Fourth embodiment)
The configuration of the human-powered vehicle component 30 of the fourth embodiment will be described with reference to FIGS. 27 to 30. The human-powered vehicle component 30 of this embodiment differs from the human-powered vehicle component 30 of the first embodiment in a part of the configuration of the electric motor 32. In the following description, the same reference numerals are given to the same components as those of the human-powered vehicle component 30 of the first embodiment, and the description thereof will be omitted.

As shown in FIG. 27, the electric motor 32 includes a busbar unit 90 for connecting the plurality of U-phase coils, the plurality of V-phase coils, and the plurality of W-phase coils of the stator 32D, and the electric motor 32 in the housing 40. It has a bracket 92 for attaching the.

Busbar unit 90 includes an annular support portion 90A. The support portion 90A is attached to the stator 32D so as to cover the stator 32D in the axial direction of the output shaft 32A. The support portion 90A includes a first terminal block 90B, a second terminal block 90C, and a third terminal block 90D. The first terminal block 90B, the second terminal block 90C, and the third terminal block 90D are provided spaced apart from each other in the circumferential direction around the output shaft 32A. A first terminal 90U is attached to the first terminal block 90B. A second terminal 90V is attached to the second terminal block 90C. A third terminal 90W is attached to the third terminal block 90D. A plurality of U-phase coils are electrically connected to the first terminal 90U. A plurality of V-phase coils are electrically connected to the second terminal 90V. A plurality of W-phase coils are electrically connected to the third terminal 90W.

The bracket 92 is attached to the case 32C so as to cover the busbar unit 90 in the axial direction of the output shaft 32A. Bracket 92 covers the opening of case 32C. Busbar unit 90 is arranged between stator 32D and bracket 92 in the axial direction of output shaft 32A. The bracket 92 includes a first hole 92A, a plurality of second holes 92B, and a third hole 92C. As an example, in FIG. 27, the bracket 92 includes a plurality of attachment portions 92D provided on the outer circumferential portion. The plurality of attachment portions 92D are provided spaced apart from each other in the circumferential direction around the output shaft 32A.

The first hole 92A is a through hole into which the output shaft 32A is inserted. The first hole 92A is provided in the center of the bracket 92. The first terminal block 90B, the second terminal block 90C, and the third terminal block 90D of the bus bar unit 90 are inserted into the plurality of second holes 92B. A stopper member 98 is attached to the third hole 92C.

As shown in FIG. 28, the bracket 92 has a support portion 92E. The support portion 92E is formed in a cylindrical shape around the periphery of the first hole 92A. The first bearing 32F (see FIG. 21) is attached to the support portion 92E.

A plurality of protrusions 92F that protrude in the radial direction and a plurality of ribs 92G are provided on the outer peripheral portion of the support portion 92E. The plurality of protrusions 92F are provided spaced apart from each other in the circumferential direction around the output shaft 32A. The plurality of ribs 92G are provided spaced apart from each other in the circumferential direction around the output shaft 32A. The rib 92G is provided between circumferentially adjacent protrusions 92F. Vibration of the electric motor 32 is suppressed by providing the rib 92G.

A circuit board 94 is attached to the end surface of the support portion 92E. The circuit board 94 is formed in an arc shape when viewed from above. The circuit board 94 is provided across two circumferentially adjacent protrusions 92F. The circuit board 94 is attached to the protrusion 92F of the support portion 92E with screws 94A. The screw 94A is made of non-magnetic material. An example of a non-magnetic material is an aluminum alloy. The circuit board 94 is supported by ribs 92G. Note that the mounting structure between the circuit board 94 and the support portion 92E can be changed arbitrarily. In one example, circuit board 94 may be attached to support 92E by any of adhesives, double-sided tape, and heat staking.

Electronic components are mounted on the surface of the circuit board 94 on the support section 92E side and the surface on the opposite side from the support section 92E, respectively. In one example, a position detection element 94B that detects the rotational position of the rotor 32E of the electric motor 32 is mounted on the surface of the circuit board 94 opposite to the support portion 92E. An example of the position detection element 94B includes three Hall elements. A connector 94C is mounted on the surface of the circuit board 94 on the support portion 92E side.

As shown in FIG. 30, a harness 96 is electrically connected to the connector 94C. Harness 96 is pulled out of bracket 92 via stopper member 98 . Stopper member 98 fixes harness 96. The harness 96 is electrically connected to a circuit board 34A (see FIG. 4) provided within the housing 40.

As shown in FIG. 29, the stopper member 98 is made of one member. The stopper member 98 has a cover portion 98A and a fixing portion 98B. The cover portion 98A covers the periphery of the third hole 92C of the bracket 92. The fixing part 98B is inserted into the third hole 92C.

The cover portion 98A is formed into a rectangle in plan view. The cover portion 98A includes a first through hole 98C, a pair of second through holes 98D, and a hinge portion 98E. The first through hole 98C is a long hole extending in the longitudinal direction of the cover portion 98A. The first through hole 98C is provided at the center of the cover portion 98A in plan view. The second through hole 98D is provided on both sides of the first through hole 98C in a direction perpendicular to the longitudinal direction of the cover portion 98A in plan view. The hinge portion 98E is provided so that the center portion of the cover portion 98A is thinner in side view.

The fixing part 98B includes a first fixing part 98F and a second fixing part 98G. The first fixing portion 98F and the second fixing portion 98G are provided spaced apart from each other in a direction perpendicular to the longitudinal direction of the cover portion 98A in plan view. An insertion hole 98H for inserting the harness 96 is formed between the first fixing part 98F and the second fixing part 98G.

The first fixing portion 98F includes a first protrusion 98I, a first protrusion 98J, and a first engagement portion 98K. The first protrusion 98I protrudes toward the insertion hole 98H. In the axial direction of the output shaft 32A, the first protrusion 98I is provided at an intermediate portion of the first fixing portion 98F in side view. The first protruding portions 98J are provided at both longitudinal ends of the first fixing portion 98F in plan view. The first protruding portions 98J are provided on both sides of the first fixing portion 98F in the longitudinal direction in plan view. The first protrusion 98J protrudes toward the insertion hole 98H. The first engaging portion 98K is provided at a longitudinally intermediate portion of the first fixing portion 98F in plan view. The first engaging portion 98K is inserted into the third hole 92C of the bracket 92 and engages with the periphery of the third hole 92C.

The second fixing portion 98G includes a second protrusion 98L, a second protrusion 98M, and a second engagement portion 98N. The second protrusion 98L, second protrusion 98M, and second engagement portion 98N have the same shape as the first protrusion 98I, first protrusion 98J, and first engagement portion 98K of the first fixing portion 98F. The second protrusion 98L is provided at a different position from the first protrusion 98I in side view. The second protrusion 98M is provided at the same position as the first protrusion 98J in side view.

When inserting the harness 96 connected to the connector 94C into the stopper member 98, first the cover portion 98A is bent around the hinge portion 98E so that the gap between the first protrusion 98J and the second protrusion 98M becomes larger. It will be done. In this state, the harness 96 is inserted into the insertion hole 98H of the stopper member 98. After the harness 96 is inserted into the stopper member 98, the stopper member 98 is attached to the third hole 92C of the bracket 92.

When force is applied to the first fixing part 98F and the second fixing part 98G so that the insertion hole 98H becomes smaller, the first protruding part 98J and the second protruding part 98M come into contact with each other, thereby causing the first fixing part 98F and the second fixing part 98G to become smaller. Movement of the second fixed portion 98G is restricted. This prevents the stopper member 98 from coming off the bracket 92.

(Modified example)
The description regarding each embodiment is an illustration of the form that the human-powered vehicle component according to the present invention can take, and is not intended to limit the form. The component for a human-powered vehicle according to the present invention may take the form of, for example, a modification of each embodiment shown below, or a combination of at least two modifications that are not mutually contradictory. In the following modified examples, parts common to each embodiment are given the same reference numerals as those in each embodiment, and the description thereof will be omitted.

- In the human-powered vehicle component 30 of the second embodiment, the configuration of at least one of the human-powered vehicle components 30 of the third and fourth embodiments may be combined.
- In the first, third, and fourth embodiments, at least one of the attachment parts 50A, 50B, and 50C may be integrally formed with the second housing 40B. In the first, third, and fourth embodiments, at least one of the attachment parts 50A, 50B, and 50C may be insert-molded in the second housing 40B.

- In the first, third, and fourth embodiments, one of the mounting portion 50A and the mounting portions 50B and 50C may be made of resin and may be formed integrally with the housing 40.
- In the first and third embodiments, at least one of the first attachment part 52A and the second attachment part 52B of the attachment part 50A may be provided separately from the fixing part 54A. At least one of the third attachment part 52C and the fourth attachment part 52E of the attachment part 50B may be provided separately from the fixing part 54B. At least one of the third attachment part 52D and the fourth attachment part 52F of the attachment part 50C may be provided separately from the fixing part 54I.

- In the first, third, and fourth embodiments, at least one of the attachment portion 50B and the attachment portion 50C may be formed integrally with the attachment portion 50A.
- In the second embodiment, at least one of the attachment part 70A and the attachment part 70B and the fixing part 74I may be provided separately.

- In the second embodiment, at least one of the attachment portion 50A and the attachment portion 70 may be integrally formed with the second housing 40B. When the attachment portion 70 is integrally formed with the second housing 40B, the attachment portion 70 and the fixing portion 74I are provided separately.

- In the fourth embodiment, at least one of the attachment parts 50A, 50B, and 50C is made of resin, and may be formed integrally with the housing 40.
- In each embodiment, the first mounting portions 52A, 72A, the second mounting portions 52B, 72B, the third mounting portions 52C, 52D, the fourth mounting portions 52E, 52F, the fifth mounting portion 72C, and The shape of the sixth attachment portion 72D can be changed arbitrarily. For example, the attachment parts 50, 70 further include screw holes. The attachment parts 50, 70 further include a second flange part provided at the edge of the screw hole. The second flange portion is formed by burring. As an example of the shape of the attachment parts 50 and 70, the shape of the first attachment part 52A will be explained using FIG. 31. As shown in FIG. 31(a), the first mounting portion 52A includes a screw hole 52J. The first attachment portion 52A further includes a second flange portion 52K provided at the edge of the screw hole 52J. The second flange portion 52K is formed by burring. As shown in FIG. 31(b), the second flange portion 52K is provided on the side opposite to the side on which the bracket 28 is disposed with respect to the first attachment portion 52A. The bracket 28 is sandwiched between the first mounting portion 52A and the bolt head 36A of the bolt 36. The first mounting portion 52A is fixed to the bracket 28 by screwing the male thread 36B of the bolt 36 into the screw hole 52J.

- Although the component 30 for a human-powered vehicle in each embodiment is applied to a drive unit, the component 30 for a human-powered vehicle is disclosed in, for example, International Patent Publication WO2008/89932 and United States Patent Publication US2016-257373. It may be applied to such transmissions.

DESCRIPTION OF SYMBOLS 10...Manpower-driven vehicle, 12A...Crankshaft, 16...Frame, 30...Component for human-powered vehicle, 31...Reinforcement member, 32...Electric motor, 32D...Stator, 40...Housing, 42A...Through hole, 49...Reinforcement member , 50, 50A, 50B, 50C... Attachment part, 52A... First attachment part, 52B... Second attachment part, 52C, 52D... Third attachment part, 52E, 52F... Fourth attachment part, 52G... Hole, 52H... First flange part, 52J...Screw hole, 52K...Second flange part, 54, 54A, 54B...Fixing part, 54C...Support part, 56...Nut, 70, 70A, 70B...Mounting part, 72A...First mounting part , 72B...second attachment part, 72C...fifth attachment part, 72D...sixth attachment part, 72E...hole, 74A, 74B, 74I...fixing part, 74E...supporting part.

Claims (27)

a resin housing provided with a through hole configured to allow the crankshaft to pass through;
a metal attachment part provided on the housing so as to protrude from the housing and configured to be attached to a frame of a human-powered vehicle;
The attachment part includes a fixing part configured to be fixed to the housing,
The fixing part is formed integrally with the housing ,
The attachment portion includes a first attachment portion and a second attachment portion,
The first attachment part and the second attachment part are arranged at intervals in the axial direction of the crankshaft so as to be individually fixed to the frame,
The attachment portion is flexible to fill a gap between the attachment portion and the frame when the gap is present in the component for a human-driven vehicle. The human-powered vehicle component according to claim 1, wherein the fixing portion is insert-molded in the housing. The fixing part is provided on a side wall forming an outer peripheral surface of the housing,
The component for a human-powered vehicle according to claim 1 or 2, wherein the attachment portion protrudes from the side wall toward the outside of the housing so as to extend in a direction perpendicular to the axial direction of the crankshaft. The component for a human-powered vehicle according to claim 1 or 2, wherein the first attachment part, the second attachment part, and the fixing part are integrally formed. The component for a human-powered vehicle according to claim 4, wherein the first attachment portion, the second attachment portion, and the fixing portion are formed of sheet metal. The attachment part includes a third attachment part,
The third mounting portion is spaced from the first mounting portion in the circumferential direction of the crankshaft, and
The component for a human-powered vehicle according to claim 4 or 5 , wherein the first attachment portion is formed separately from the third attachment portion. The attachment portion includes a third attachment portion and a fourth attachment portion,
The component for a human-powered vehicle according to any one of claims 1, 2, 4, and 5, wherein the third attachment part and the fourth attachment part are arranged at intervals in a circumferential direction of the crankshaft. . The attachment portion includes a third attachment portion and a fourth attachment portion,
The third mounting portion and the fourth mounting portion are arranged at intervals in a circumferential direction of the crankshaft,
The component for a human-powered vehicle according to any one of claims 1, 2, 4, and 5, wherein the third attachment part, the fourth attachment part, and the fixing part are integrally formed. The component for a human-powered vehicle according to claim 8, wherein the third attachment portion, the fourth attachment portion, and the fixing portion are formed of sheet metal. The attachment part further includes a fifth attachment part,
The component for a human-powered vehicle according to claim 4 or 5 , wherein the first attachment part, the second attachment part, and the fifth attachment part are arranged at intervals in a circumferential direction of the crankshaft. The attachment part further includes a fifth attachment part,
The first mounting part, the second mounting part, and the fifth mounting part are arranged at intervals in a circumferential direction of the crankshaft,
The component for a human-powered vehicle according to claim 4 or 5, wherein the first attachment part, the second attachment part, the fifth attachment part, and the fixing part are integrally formed. The component for a human-powered vehicle according to claim 11, wherein the first attachment portion, the second attachment portion, the fifth attachment portion, and the fixing portion are formed of sheet metal. The attachment part further includes a sixth attachment part,
The component for a human-powered vehicle according to any one of claims 10 to 12 , wherein the fifth attachment portion and the sixth attachment portion are spaced apart in the axial direction of the crankshaft. The attachment part further includes a sixth attachment part,
The fifth mounting portion and the sixth mounting portion are arranged at intervals in the axial direction of the crankshaft,
The component for a human-powered vehicle according to claim 11, wherein the first attachment part, the second attachment part, the fifth attachment part, the sixth attachment part, and the fixing part are integrally formed. The component for a human-powered vehicle according to claim 14, wherein the first attachment part, the second attachment part, the fifth attachment part, the sixth attachment part, and the fixing part are formed of sheet metal. a bearing part provided in the housing and rotatably supporting the crankshaft;
The component for a human-driven vehicle according to any one of claims 1 to 15 , further comprising a metal support part connected to the mounting part and supporting the bearing part. a bearing part provided in the housing and rotatably supporting the crankshaft;
further comprising a metal support part connected to the mounting part and supporting the bearing part,
The component for a human-powered vehicle according to any one of claims 1 to 5, 8, 9, 11, 12, 14, 15, wherein the mounting part and the support part are integrally formed. The human-powered vehicle component according to claim 17 , wherein the mounting portion and the support portion are formed of sheet metal. 19. The component for a human powered vehicle according to claim 18 , wherein the support portion is insert molded into the housing. further including nuts;
20. A component for a human-powered vehicle according to any one of claims 1 to 19 , wherein the mounting portion includes a hole in which the nut is provided. The component for a human-driven vehicle according to claim 20 , wherein the attachment portion further includes a first flange portion formed at an edge of the hole. The component for a human-powered vehicle according to claim 21 , wherein the first flange portion is formed by burring. 23. A component for a human-powered vehicle according to any one of claims 1 to 22 , wherein the attachment portion further includes a threaded hole. The component for a human-powered vehicle according to claim 23 , wherein the attachment portion further includes a second flange portion provided at an edge of the screw hole. The human-powered vehicle component according to claim 24 , wherein the second flange portion is formed by burring. further comprising an electric motor having a stator;
26. A human powered vehicle component according to any one of claims 1 to 25 , wherein the stator is insert molded into the housing. an electric motor provided in the housing;
further comprising a metal reinforcing member provided within the housing and integrally formed with the mounting portion,
27. A component for a human-powered vehicle according to any one of claims 1 to 26 , wherein the reinforcing member contacts the electric motor.