JP2019177841A - Human-powered vehicle component - Google Patents

Abstract

To provide a human-powered vehicle component that is light in weight and can be stably attached to a frame.SOLUTION: A human-powered vehicle component has a resin housing having a through hole that allows a crank shaft to pass through, and a metal attachment part that is provided in the housing so as to project from the housing and is attached to the human-powered vehicle frame.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a component for a manpowered vehicle.

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

Japanese Patent No. 4124393

In a conventional component for a manpowered vehicle, a mounting portion to the frame is also formed of resin. Although the attachment portion is reinforced by embedding a metal, if a load is applied by a bolt or the like, the resin forming the attachment portion may be damaged.
An object of the present invention is to provide a component for a manpowered vehicle that is lightweight and can be stably attached to a frame.

A human-powered vehicle component according to a first aspect of the present invention includes a resin-made housing provided with a through-hole configured to penetrate a crankshaft, and a human-powered drive provided in the housing so as to protrude from the housing. A metal mounting portion configured to be mounted on 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 mounting portion is provided on the housing so as to protrude from the housing, the mounting portion is prevented from being damaged when the mounting portion is mounted on the frame, and can be stably mounted on the frame. it can.

In the component for a manpowered vehicle on the second side according to the first side, the attachment portion includes a fixing portion configured to be fixed to the housing.
According to the component for human-powered vehicles of the 2nd side, it can suppress that an attaching part remove | deviates from a housing.

In the component for a manpowered vehicle on the third side according to the second side, the fixing portion is formed integrally with the housing.
According to the component for human-powered vehicles of the 3rd side surface, it can suppress that an attaching part remove | deviates from a housing.

In the component for a manpowered vehicle on the fourth side according to the third side, the fixing portion is insert-molded in the housing.
According to the component for human-powered vehicles of the 4th side surface, it can suppress that an attaching part remove | deviates from a housing.

In the component for a human-powered vehicle according to the fifth aspect according to any one of the first to fourth aspects, the attachment portion includes a first attachment portion and a second attachment portion, and the first attachment portion and the second attachment portion. The parts are arranged at intervals in the axial direction of the crankshaft.
According to the component for manpowered vehicles of the 5th side, the component for manpowered vehicles can be stably attached to a manpowered vehicle.

In the component for a human-powered vehicle of the sixth side according to any one of the second to fourth sides, the attachment portion includes a first attachment portion and a second attachment portion, and the first attachment portion and the second attachment portion. The parts are arranged at intervals in the axial direction of the crankshaft, and the first attachment part, the second attachment part, and the fixing part are integrally formed.
According to the human-powered vehicle component of the sixth aspect, the attachment portion is unlikely to be detached from the housing, and the human-powered vehicle component can be stably attached to the human-powered vehicle.

In the component for a manpowered vehicle on the seventh side according to the sixth side, the first mounting portion, the second mounting portion, and the fixing portion are formed of sheet metal.
According to the component for manpower drive vehicles of the 7th side, an attaching part can be manufactured cheaply.

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

In the ninth aspect of the human-powered vehicle component 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 with a space 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 component for human-powered vehicles on the ninth aspect, the attachment portion is unlikely to come off the housing, and the component for human-powered vehicles can be stably attached to the human-powered vehicle.

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

In the component for a manpowered vehicle on the eleventh side according to any one of the fifth to seventh sides, the attachment portion further includes a fifth attachment portion, and the first attachment portion and the second attachment portion, The fifth attachment portion is disposed with a gap 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 twelfth side human powered vehicle component according to the sixth or seventh aspect, the attachment portion further includes a fifth attachment portion, the first attachment portion, the second attachment portion, and the fifth attachment portion. Are arranged at intervals in the circumferential direction of the crankshaft, and the first mounting portion, the second mounting portion, the fifth mounting portion, and the fixing portion are integrally formed.
According to the human-powered vehicle component of the twelfth aspect, the attachment portion is unlikely to come off the housing, and the human-powered vehicle component can be suitably attached to the human-powered vehicle.

In the component for a manpowered vehicle on the thirteenth side according to the twelfth side, the first mounting portion, the second mounting portion, the fifth mounting portion, and the fixing portion 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 manpowered vehicle according to the fourteenth side according to any one of the first to thirteenth side surfaces, the attachment portion further includes a sixth attachment portion, and the fifth attachment portion and the sixth attachment portion are The crankshaft is arranged at an interval 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 manpowered vehicle according to the fifteenth aspect according to the twelfth aspect, the attachment portion further includes a sixth attachment portion, and the fifth attachment portion and the sixth attachment portion are spaced apart 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 unlikely to come off the housing, and the human-powered vehicle component can be stably attached to the human-powered vehicle.

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

In the component for a manpowered vehicle on the seventeenth side according to any one of the first to sixteenth sides, the bearing is provided on the housing and rotatably supports the crankshaft, and is connected to the mounting portion. And a metal support that supports the bearing.
According to the component for manpower drive vehicles of the 17th side, a bearing part can be supported stably.

In the component for a manpowered vehicle on the eighteenth side according to any one of the second to fourth, sixth, seventh, ninth, tenth, twelfth, thirteenth, fifteenth and sixteenth sides, the housing A bearing portion that rotatably supports the crankshaft; and a metal support portion that is coupled to the attachment portion and supports the bearing portion, wherein the attachment portion and the support portion are integrated. Is formed.
According to the human-powered vehicle component of the eighteenth aspect, the bearing portion can be stably supported.

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

In the component for a manpowered vehicle according to the twentieth aspect according to the nineteenth aspect, the support portion is insert-molded in the housing.
According to the component for human-powered vehicles of the 20th side, it can suppress that a support part remove | deviates from a housing.

The component for a human-powered vehicle according to the twenty-first side according to any one of the first to twentieth sides further includes a nut, and the attachment portion includes a hole in which the nut is provided.
According to the component for a manpowered vehicle on the twenty-first aspect, the component for a manpowered vehicle can be easily attached to the manpowered vehicle by a bolt.

In the component for a manpowered 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 component for human-powered vehicles of the 22nd side, it can suppress that a nut remove | deviates from an attaching part.

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

In the component for a manpowered vehicle according to the twenty-fourth side according to any one of the first to twenty-third sides, the attachment portion further includes a screw hole.
According to the component for a manpowered vehicle on the twenty-fourth side, the component for a manpowered vehicle can be attached to the manpowered vehicle with a bolt.

In the component for a manpowered 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-powered vehicle on the 25th side, the portion that engages with the bolt in the second flange portion increases, so that the bolt can be stably attached to the attachment portion.

In the component for a manpowered vehicle on the twenty-sixth side according to the twenty-fifth side, the second flange portion is formed by burring.
According to the component for a manpowered vehicle on the twenty-sixth side, the second flange portion can be easily formed.

The component for a manpowered vehicle on the twenty-seventh side according to any one of the first to twenty-sixth sides further includes an electric motor having a stator, and the stator is insert-molded in the housing.
According to the component for a manpowered vehicle on the twenty-seventh side, a member for attaching the electric motor to the housing can be omitted.

A component for a manpowered vehicle on the 28th side according to any one of the 1st to 27th sides, an electric motor provided in the housing, and a metal provided in the housing and integrally formed with the mounting portion The reinforcing member is in contact with the electric motor.
According to the component for a manpowered vehicle of the 28th aspect, the heat of the electric motor can be released through the reinforcing member, and the heat dissipation performance can be improved.

In the component for a manpowered vehicle on the 29th side according to the 1st to 28th side, the mounting portion has flexibility.
According to the 29th aspect of the human-powered vehicle component, even if there is a gap between the mounting portion and the human-powered vehicle component, the mounting portion bends, so that the mounting portion and the human-powered vehicle component are used. A gap can be filled between components. Therefore, in the state where the component for the manpowered vehicle is attached to the manpowered vehicle, the rattling of the component for the manpowered vehicle with respect to the frame of the manpowered vehicle can be suppressed.

  The component for a manpowered vehicle of the present invention is lightweight and can be stably attached to a frame.

The side view of the bicycle containing the component for human-powered vehicles of 1st Embodiment. The disassembled perspective view of the component for human-powered vehicles, and a bracket. The front view of the component for manpowered vehicles of FIG. FIG. 3 is a cross-sectional view taken along a cross-section indicating line in FIG. The perspective view of the 1st housing of the component for human-powered vehicles. The perspective view which looked at the 1st housing of Drawing 5 from another angle. (A) is a front view of a fastening member, (b) is sectional drawing of a fastening member. The perspective view of the attachment part of the component for human-powered vehicles. The front view of the attaching part of FIG. The perspective view of another attaching part of the component for human-powered vehicles. The perspective view of another attachment part of the component for human-powered vehicles. The perspective view of the 2nd housing of the component for human-powered vehicles. The perspective view of the reinforcement member of the 2nd housing of FIG. (A) And (b) is a side view which shows the attachment structure of an attaching part and a bracket. The disassembled perspective view of another example of the attachment structure of an attachment part and a bracket. Sectional drawing of the attaching part of FIG. Sectional drawing which shows the attachment structure of the attaching part and bracket of FIG. The perspective view of the 1st housing of the component for manpowered vehicles of a 2nd embodiment. The perspective view of the attaching part of the component for manpowered vehicles of FIG. The expanded view before the attaching part of FIG. 19 is bent. Sectional drawing of the motor of the component for human-powered vehicles of 3rd Embodiment, and its periphery. FIG. 22 is a cross-sectional view of another example of the motor in FIG. The exploded perspective view of the rotor core of a motor. The top view of the 1st lamination | stacking of a rotor core. The top view of the 2nd lamination | stacking of a rotor core. The top view of a rotor core. The disassembled perspective view of a part of motor in the component for manpower drive vehicles of a 4th embodiment. The perspective view of the bracket of the motor of FIG. The perspective view of the stopper member of FIG. FIG. 28 is a sectional view of the stopper member of the motor of FIG. (A) is sectional drawing of the attaching part in the component for human-powered vehicles of a modification, (b) is sectional drawing which shows the attachment structure of the attaching part and bracket of (a).

(First embodiment)
With reference to FIG. 1, the human-powered vehicle 10 including the component 30 for human-powered vehicles of 1st Embodiment is demonstrated. The human-powered vehicle 10 is a vehicle that can be driven by at least a human-powered driving force. The manpowered vehicle 10 includes, for example, a bicycle. The man-powered vehicle 10 is not limited in the number of wheels, and includes, for example, a single-wheel vehicle and a vehicle having three or more wheels. Human powered vehicles include, for example, various types of bicycles such as mountain bikes, road bikes, city bikes, cargo bikes, and recumbents, as well as electrically assisted bicycles (E-bike). Hereinafter, in the embodiment, the human-powered vehicle 10 will be described as a bicycle.

  The manpower driven vehicle 10 includes a crank 12 and drive wheels 14. The manpowered vehicle 10 further includes a frame 16. A manual driving force H is input to the crank 12. The crank 12 includes a crankshaft 12A that can rotate with respect to the frame 16, and crank arms 12B that are provided at both ends of the crankshaft 12A in the axial direction. A pedal 18 is connected to each crank arm 12B. The drive wheel 14 is driven by the rotation of the crank 12. The drive wheel 14 is supported by the frame 16. The crank 12 and the drive wheel 14 are connected by a drive mechanism 20. Drive mechanism 20 includes a first rotating body 22 coupled to 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 to prevent the first rotating body 22 from rotating 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. The connecting 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. A second one-way clutch is preferably provided between the second rotating body 24 and the drive wheel 14. The second one-way clutch is configured such that when the second rotating body 24 rotates forward, the driving wheel 14 rotates forward, and when the second rotating body 24 rotates backward, the driving wheel 14 does not rotate backward. .

  The manpowered vehicle 10 includes a front wheel and a rear wheel. 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 embodiment, the rear wheel is described as the drive wheel 14, but the front wheel may be the drive wheel 14.

The manually driven vehicle component 30 is provided on the frame 16. As shown in FIG. 2, the manpowered vehicle component 30 is attached to a bracket 28 that is a part of the frame 16. The bracket 28 is fixed to, for example, a down tube and a seat tube. The bracket 28 may be connected to the chain stay.
The manpower driven vehicle component 30 includes a resin housing 40 and a metal mounting portion 50. The metal used in this embodiment is an alloy containing at least iron or aluminum. The attachment part 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 glass fiber with resin. An example of the housing 40 may be formed by mixing resin with at least one of a carbon filler and a metal filler. When a carbon filler and a metal filler are mixed in the housing 40, the influence of noise can be reduced. For example, stainless steel (SUS type) or polished special steel strip (SAE1010 type) is preferably used for the mounting portion 50.

  The manpowered vehicle component 30 further includes a crankshaft 12A. The crankshaft 12 </ b> A extends in a state of penetrating 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 in 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, the attachment portion 50 is configured to be attached to a bracket 28 that is a part of the frame 16.

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

  The housing 40 includes a first housing 40A and a second housing 40B. The first housing 40A has a concave shape opened on one side in a direction parallel to the axis C of the crankshaft 12A. A direction parallel to the axis C of the crankshaft 12A is hereinafter 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 and 52D and fourth attachment portions 52E and 52F. As shown in FIG. 2, the first attachment portion 52A and the second attachment portion 52B are arranged with an interval in the axial direction CA of the crankshaft 12A. The third attachment portion 52C and the fourth attachment portion 52E are arranged with an interval in the circumferential direction of the crankshaft 12A. The third attachment portion 52D and the fourth attachment portion 52F are arranged with an interval in the circumferential direction of the crankshaft 12A. The third mounting portion 52C and the third mounting portion 52D are arranged with a gap in the axial direction CA of the crankshaft 12A, and the fourth mounting portion 52E and the fourth mounting portion 52F are spaced in the axial direction CA of the crankshaft 12A. It is arranged with a gap. As shown in FIGS. 2 and 3, 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. When viewed from the axial direction CA of the crankshaft 12A, the third mounting portion 52C and the third mounting portion 52D are disposed at positions that overlap each other, and the fourth mounting portion 52E and the fourth mounting portion 52F are disposed at positions that overlap each other. The

  The manually driven vehicle component 30 can be attached to the bracket 28 by a bolt 36. The bracket 28 includes an upper wall 28A and a pair of flanges 28B. The upper wall 28A covers the man-powered vehicle component 30 from above. The pair of flanges 28B extends 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 and 52D, and the fourth mounting portions 52E and 52F in the axial direction CA of the crankshaft 12A. Extend. 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 and 52D, and the fourth mounting portions 52E and 52F in the axial direction CA of the crankshaft 12A. Including the through-hole 28C. The bolt 36 is inserted into the through hole 28 </ b> C and fixed to the attachment portion 50.

  FIG. 4 shows an example of the internal structure of the component 30 for a manpowered vehicle. As shown in FIG. 4, the component 30 for a manpowered vehicle includes an output unit 38, a one-way clutch 60, a detection shaft 61, a first bearing 62 </ b> A, a second bearing 62 </ b> B, a fifth bearing 62 </ b> E, a reduction gear 64, and a one-way clutch 66. And a sensor 68.

  The housing 40 includes a part of the crankshaft 12A, a part of the output unit 38, a part of the electric motor 32, the drive circuit 34, the one-way clutch 60, the first bearing 62A, the second bearing 62B, the third bearing 62C, and the fourth. The bearing 62D, the fifth bearing 62E, the speed reducer 64, the one-way clutch 66, and the sensor 68 are accommodated.

  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 62 </ b> A is provided in the first hole 42 </ b> B of the housing 40. The first bearing 62A rotatably supports the vicinity of one end portion in the axial direction CA of the crankshaft 12A. The output unit 38 is coaxial with the crankshaft 12A. The output part 38 covers the outer peripheral part in the vicinity of the other end part in the axial direction CA of the crankshaft 12A. The housing 40 supports the output unit 38. Specifically, the second bearing 62B provided in the second hole 42C of the housing 40 supports the output unit 38 rotatably. A fifth bearing 62E is provided between the output unit 38 and the crankshaft 12A. The fifth bearing 62E supports the output portion 38 so as to be rotatable with respect to the crankshaft 12A. The fifth bearing 62E includes a needle bearing.

  The electric motor 32 applies torque for assisting the propulsion of the manpowered vehicle 10 to the output unit 38. The 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 unit includes, for example, a CPU (Central Processing Unit) or an MPU (Micro Processing Unit). The drive circuit 34 may include one or more microcomputers. In one example, the drive circuit 34 further includes a storage unit. The storage unit stores various control programs and information used for various control processes. The storage unit includes, for example, a nonvolatile memory and a 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. The second rotating shaft 64B is provided with a third gear 64X and a fourth gear 64Y. 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 rotation shaft 64B. The fourth gear 64Y meshes with a gear 38A provided on the outer periphery of the output unit 38. The rotation of the electric motor 32 is performed when the output shaft 32A is transmitted from the gear 32B 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 unit 38. Is decelerated and output to the output unit 38 in three stages during transmission to the output. In the present embodiment, the speed reducer 64 decelerates in three stages between the electric motor 32 and the output unit 38, but may be configured to decelerate in one stage, two stages, or four or more stages. The speed reducer 64 may include a speed reduction mechanism other than a parallel shaft gear. For example, the speed reducer 64 may include a planetary gear mechanism, a worm gear, a helical gear, or a roller speed reducer, and a plurality of types of speed reduction mechanisms may be combined.

  The one-way clutch 66 is provided in the transmission path of the motor driving force from the output shaft 32 </ b> A of the electric motor 32 to the output unit 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 rotation shaft 64A and does not transmit the rotation of the first gear 64V in the other direction to the first rotation 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 by the human-powered driving force. Composed. The 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 rotation shaft 64B, or between the fourth gear 64Y and the second rotation 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 peripheral portion of the crankshaft 12A. One end of the detection shaft 61 in the axial direction is fixed to the crankshaft 12A, for example, by serration, 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 driving force between the crankshaft 12A and the output unit 38. The one-way clutch 60 includes, for example, a roller clutch or a ratchet clutch. The one-way clutch 60 is configured such that when the crank 12 is rotated forward, the first rotating body 22 is rotated forward, and when the crank 12 is rotated backward, the first rotating body 22 is not rotated backward. The one-way clutch 60 may be omitted, and in this case, the detection shaft 61 and the output unit 38 may be integrally formed.
The sensor 68 outputs a signal corresponding to the force input to the crankshaft 12A. The sensor 68 is disposed on the detection shaft 61 or the outer periphery of the detection shaft 61. The sensor 68 includes, for example, a strain sensor or a magnetostrictive sensor. The sensor 68 is communicably connected to the drive circuit 34 by wireless or wired. The drive circuit 34 controls the electric motor 32 according to the output signal of the 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 formed. As shown in FIG. 5, the first housing 40A includes a housing portion 44C, a motor attachment portion 44D, a first support portion 44E, a second support portion 44F, and a plurality of first fixing portions 44G.

  The accommodating portion 44C is formed to be 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 12 </ b> A, a part of the output part 38, the one-way clutch 60 and the second bearing 62 </ b> B are housed in the housing part 44 </ b> C.

  As shown in FIG. 5, the motor attachment portion 44D is provided on the bottom wall 44A. The motor attachment portion 44D is formed integrally with the bottom wall 44A. The motor mounting portion 44D is formed with a plurality of insertion holes 44H for mounting the electric motor 32 by bolts 41B (see FIG. 4) and through holes through which the output shaft 32A of the electric motor 32 passes. And a support portion 44I to which a bearing for rotatably supporting the motor 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 41 </ b> B is inserted into the plurality of insertion holes 44 </ b> H so that the bolt heads are in the housing 40, and is connected to a screw hole provided in the case 32 </ b> C of the electric motor 32.

  The first support portion 44E supports the first rotating shaft 64A of the speed reducer 64 so as to be rotatable. The first support portion 44E is provided on the bottom wall 44A. The first support portion 44E is provided on the motor attachment portion 44D. The first support portion 44E accommodates and supports the third bearing 62C. The first support portion 44E is formed integrally with the bottom wall 44A.

  The second support portion 44F is formed to be 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 2nd support part 44F supports the 2nd rotating shaft 64B of the reduction gear 64 rotatably. The second support portion 44F accommodates and supports the fourth bearing 62D. The second support portion 44F is formed integrally with the bottom wall 44A.

  As shown in FIG. 5, each of the plurality of first fixing portions 44G includes a first fixing portion main body and a metal first fastening member 46A. The first fixed portion main body is provided on the side wall 44B. The first fixed portion main body is formed integrally with the side wall 44B. 46 A of 1st fastening members are attached to a 1st fixing | fixed part main body. In one example, the first fastening member 46A is insert-molded in the first fixed portion main body. The first fastening member 46A may be press-fitted into a hole formed in the first fixed portion main body, or may be inserted into a hole formed in the first fixed portion main body and adhered to the first fixed portion main body. . The first fastening member 46A has a substantially cylindrical outer peripheral surface. As shown in FIG. 7A, a knurl 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 intermediate portion in the axial direction of the first fastening member 46A. The groove 46D may be formed over the entire circumference around the axial line extending in the axial direction of the first fastening member 46A, or may be formed intermittently. As shown in FIG. 7B, 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. An internal 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 in the vicinity of the opening in the outer peripheral portion of the first fastening member 46A. By forming the knurled 46C and the groove 46D, the first fastening member 46A can be firmly fixed to the first fixing portion main body when the first fastening member 46A is insert-molded to the first fixing portion main body. Preferably, the hole 46E does not penetrate the first fastening member 46A in the axial direction of the first fastening member 46A. Accordingly, when the first fastening member 46A is insert-molded in the first fixing portion main body, it is possible to suppress the resin from entering the hole 46E. 46 A of 1st fastening members are provided in a 1st fixing | fixed part main body so that the hole 46E may be exposed. Preferably, the first fastening member 46A is fixed to the first fixing portion main body so 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 portion 44J, a second wall portion 44K, and a third wall portion 44L. The first wall portion 44J, the second wall portion 44K, and the third wall portion 44L are formed integrally 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 part of the side wall 44B and have a portion that extends to 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 attachment portion 44D. The second plane that is perpendicular to the first plane passing through the axis of the crankshaft 12A and the axis of the output shaft 32A of the electric motor 32 and passes through the axis of the output shaft 32A of the electric motor 32 is preferably crank The first wall portion 44J is provided in a region opposite to the region where the shaft 12A is disposed. The second wall portion 44K and the third wall portion 44L are formed integrally with the accommodating 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 around the crankshaft 12A with an interval of 90 degrees or more.

  A mounting portion 50 is provided on the first housing 40A. The attachment portion 50 is formed integrally with the first housing 40A. As shown in FIG. 5, the attachment portion 50 includes a plurality of attachment portions 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 attachment portion 50B and the attachment portion 50C are arranged with an interval 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 attachment portion 52A and the second attachment 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 attachment portion 52C 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 attachment portion 52E projects 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 50C includes a third attachment portion 52D and a fourth attachment portion 52F. The third attachment 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 attachment portion 52F protrudes 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 portions 50A and 50B include fixing portions 54A and 54B fixed to the housing 40. The fixing portions 54 </ b> A and 54 </ b> B are formed integrally with the housing 40. Preferably, the fixing portions 54A and 54B are insert-molded in the housing 40. The fixing portions 54A and 54B may be fixed to the housing 40 by at least one of a fastener and an adhesive. The fastener includes a bolt. Preferably, the manpowered vehicle component 30 further includes a nut 56. Preferably, attachment portions 50A, 50B, and 50C include a hole 52G in which nut 56 is provided. Preferably, the component 30 for a manpowered vehicle further includes a bearing portion that is provided in the housing 40 and rotatably supports the crankshaft 12A, and a metal support portion 54C that is connected to the mounting portion 50C and supports the bearing portion. Including. 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 fixed portion 54A is formed of a plate-shaped metal plate. In the present 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 mounting portion 52A, the second mounting 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 a 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 portion 52A and the second attachment portion 52B includes, for example, a long hole. The long holes extend in the protruding directions of the first mounting portion 52A and the second mounting portion 52B, respectively. 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. Each of the first portion 56A and the second portion 56B has 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 substantially 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 in a state where the first portion 56A is inserted into the hole 52G. The nut 56 includes a through hole 56C that penetrates the first portion 56A and the second portion 56B. An internal thread is formed on the inner peripheral surface constituting the through hole 56C. In the present embodiment, the width of the long 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 long hole. Preferably, the longitudinal direction of the long 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 portion 52A and the second attachment portion 52B can be arbitrarily changed. In one example, the shape of at least one of the hole 52G of the first attachment portion 52A and the hole 52G of the second attachment portion 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. In the plurality of through holes 54D, the fixing portions 54A are provided at intervals. The plurality of through holes 54D penetrate the fixing portion 54A in the plate thickness direction. The plurality of through holes 54D are filled with a resin material that forms the first housing 40A when the fixing portion 54A is insert-molded in the first housing 40A. The number, position, and shape of the plurality of through holes 54D can be arbitrarily changed. 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 accommodating portion 44C, and the third wall portion 44L (both see FIG. 5). Preferably, the fixing portion 54B is insert-molded into the second wall portion 44K, the accommodating portion 44C, and the third wall portion 44L, and is embedded in the second wall portion 44K, the accommodating 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 a sheet metal.

  The holes 52G of the third attachment portion 52C and the fourth attachment portion 52E are the same as the holes 52G of the first attachment portion 52A and the second attachment portion 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 plate 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 in the first housing 40A. The number, formation position, and shape of the plurality of through holes 54F can be arbitrarily changed. In one example, at least one shape of the plurality of through holes 54F may include a circle in plan view.

  The fixing portion 54B includes a first connection portion 54G connected to the third attachment portion 52C and a second connection portion 54H connected to the fourth attachment portion 52E. Preferably, each of the first connecting part 54G and the second connecting part 54H is formed by being bent with respect to the other part of the fixing part 54B. More preferably, the first connecting portion 54G and the second connecting portion 54H are each formed by being bent 90 degrees with respect to the other portions of the fixing portion 54B. Preferably, the third attachment portion 52C is formed by being bent to the opposite side of the first connecting portion 54G from the other portion of the fixing portion 54B. More preferably, the third attachment portion 52C is formed by being bent 90 degrees with respect to the first connecting portion 54G. Preferably, the fourth attachment portion 52E is formed by being bent to the opposite side of the second connecting portion 54H from the other portion of the fixing portion 54B. More preferably, the fourth attachment portion 52E is formed by being bent 90 degrees with respect to the second connecting portion 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 with respect to other portions of the fixed portion 54B. In this case, the third attachment portion 52C is not bent with respect to the first connecting portion 54G. The second connecting portion 54H may not be bent with respect to the other portion of the fixed portion 54B. In this case, the fourth attachment portion 52E is not bent with respect 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 portion 52D, the fourth attachment portion 52F, and the fixing portion 54I are integrally formed. Preferably, the third attachment portion 52D, the fourth attachment portion 52F, and the fixing portion 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 a 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 part 54C and the fixed part 54I are formed by, for example, burring or drawing. The support portion 54C is formed to be coaxial with the crankshaft 12A. Preferably, the support portion 54 </ b> C is insert-molded in the housing 40. For example, the support portion 54C is insert-molded in 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 fixed portion 54I includes a first connection portion 54K that connects the third attachment portion 52D and a second connection portion 54L that connects the fourth attachment portion 52F. Preferably, each of the first connecting portion 54K and the second connecting portion 54L is formed by being bent with respect to other portions of the fixing portion 54I. The third attachment portion 52D is formed by being bent with respect to the first connecting portion 54K. The fourth attachment portion 52F is formed by being bent with respect to the second connecting portion 54L.

  The holes 52G of the third attachment portion 52D and the fourth attachment portion 52F are the same as the holes 52G of the first attachment portion 52A and the second attachment portion 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 part 48C, a first support part 48D, a second support part 48E, a third support part 48F, and a plurality of second fixing parts 48G. The side wall 48B of the second housing 40B contacts the side wall 48B of the first housing 40A. The side wall 48B of the second housing 40B may be omitted.

The accommodating portion 48C is formed to be recessed from the bottom wall 48A. The accommodating portion 48C forms a substantially cylindrical accommodating space. A first hole 42B is formed in the accommodating portion 48C. As shown in FIG. 4, the first bearing 62 </ b> A is accommodated in the accommodating portion 48 </ b> C.
The first support portion 48D and the second support portion 48E are formed to be recessed from the bottom wall 48A. The first support portion 48D supports the first rotation shaft 64A of the speed reducer 64 so as to be rotatable. 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 rotation shaft 64B of the speed 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 side opposite to the side on which the accommodating portion 48C is formed with respect to the first support portion 48D. The third support portion 48F supports a circuit board 34A (see FIG. 4) on which the drive circuit 34 is formed.

  Each of the plurality of second fixing portions 48G includes a second fixing portion main body and a metal second fastening member 46B. The second fixing portion main body is provided on the side wall 44B. The second fixing portion main body is formed integrally with the side wall 44B. The second fastening member 46B is attached to the second fixing portion main body. In one example, the second fastening member 46B is insert-molded on the second fixing portion main body. The second fastening member 46B may be press-fitted into a hole formed in the second fixed portion main body, or may be inserted into a hole formed in the second fixed portion main body and adhered to the second fixed portion main body. . The second fastening member 46B has a substantially cylindrical outer peripheral surface. Similar to the first fastening member 46A, the second fastening member 46B has a knurl 46C on the outer peripheral surface. Unlike the first fastening member 46A, the second fastening member 46B has a through hole 46G configured to allow the bolt 41A to pass therethrough. The second fastening member 46B may be omitted. In this case, insertion holes into which the bolts 41A are inserted are formed in the plurality of second fixing portions 48G. Similarly to the first fastening member 46A, the second fastening member 46B may have a groove 46D on the outer peripheral surface.

  A metal reinforcing member 49 is provided in the second housing 40B. The reinforcing member 49 is formed integrally with the second housing 40B. The reinforcing member 49 is insert-molded in the second housing 40B. The reinforcing member 49 is attached to the accommodating portion 48C and its peripheral 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 pressing 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 forms the through hole 49D and extends in the axial direction CA of the crankshaft 12A from the first flat plate portion 49A. The inner peripheral surface of the flange portion 49E constituting the through hole 49D is exposed from the accommodating 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, a circle. 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 that forms the second housing 40B when the reinforcing member 49 is insert-molded into the second housing 40B.

  The second flat plate portion 49B is provided so as to surround a part of the first flat plate portion 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 that forms 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 arbitrarily changed. In the axial direction CA of the crankshaft 12A, the first flat plate portion 49A and the second flat plate portion 49B are arranged offset, and the first flat plate portion 49A and the second flat plate portion 49B are connected by a bent portion 49C.

  With reference to FIG. 14, an example of a procedure for attaching the component 30 for a manpowered vehicle to the bracket 28 will be described. In FIG. 14, a procedure for attaching the manually driven vehicle component 30 to the bracket 28 via the attachment portion 50 </ b> A of the attachment portion 50 will be described. The procedure for attaching the manually driven vehicle component 30 to the bracket 28 via the attachment portion 50B and the attachment portion 50C is the same. FIG. 14 shows a simplified shape of the bracket 28 for convenience of explanation.

  As shown in FIG. 14A, the first mounting portion 52 </ b> A is arranged close to one flange 28 </ b> B of the bracket 28. In FIG. 14A, the first attachment portion 52A is in contact with the flange 28B. Then, the first attachment portion 52A is fixed to the one flange 28B by the bolt 36. As shown in FIG. 14A, 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. 14B, the second mounting portion 52 </ b> B is fixed to the other flange 28 </ b> B by the bolt 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 is reduced. Thereby, it can suppress that the component 30 for human-powered vehicles shakes with respect to the bracket 28, and can fix the component 30 for human-powered vehicles to the bracket 28 stably.

  As an attachment structure to the bracket 28 of the component 30 for manpowered vehicles, the structure shown by FIGS. 15-17 is employable, for example. 15 to 17 show the structure of the first attachment portion 52A and the attachment structure of the first attachment portion 52A and the bracket 28. In the structure shown in FIGS. 15 to 17, a part of the structure of the nut 56 and a part of the structure of the first attachment portion 52A are different.

  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 mounting portion 52A of the mounting portion 50 further includes a first flange portion 52H formed at the edge of the hole 52G and a knurl 52I formed on the inner peripheral surface constituting the hole 52G. . The first flange portion 52H is formed by burring. Although not shown, the second mounting portion 52B, the third mounting portions 52C and 52D, and the fourth mounting portions 52E and 52F may similarly include the first flange portion 52H or the knurled 52I. The knurl 52I may be omitted.

  The nut 56 includes a knurl 56D provided on the outer peripheral portion of the first portion 56A, and a slit 56E communicating with the through hole 56C from the outer peripheral portion of the first portion 56A. The slit 56E extends in the circumferential direction of the first portion 56A. The knurl 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 knurl 52I of the first attachment portion 52A and the knurl 56D of the first portion 56A mesh with each other, thereby rotating the nut 56 around the axis. Can be suppressed.

  The nut 56 includes a locking member 58 disposed in the slit 56E. The locking member 58 is made of a material whose hardness is lower than that of the nut 56. The locking member 58 is made of resin, for example. The locking member 58 is formed so as to close the slit 56E of the nut 56, and is formed in, for example, an arc shape. The locking member 58 may be press-fitted into the slit 56E or may be bonded to the nut 56 with an adhesive. The locking member 58 is preferably made 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. The front end surface of the first portion 56A of the nut 56 in the axial direction CA of the crankshaft 12A is first so as to contact the flange 28B of the bracket 28 in a state where the nut 56 is press-fitted into the hole 52G of the first mounting portion 52A. It can protrude in the axial direction CA from the attachment portion 52A. The outer peripheral surface of the locking member 58 contacts the knurl 52I. The inner peripheral surface of the locking member 58 is disposed at the same position in the radial direction of the female screw formed in the through hole 56C of the nut 56 or slightly protruding from the inner peripheral surface of the female screw.

  As shown in FIG. 17, the first attachment portion 52 </ b> A is attached to the bracket 28 by a bolt 36 inserted into the through hole 56 </ b> C of the nut 56. The bolt 36 is in a state where the end surface 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 surface of the nut 56 and the flange 28B in the axial direction CA is very small. In this state, the nut 56 is screwed. The flange 28B is sandwiched between the first mounting portion 52A and the bolt head 36A of the bolt 36. The male thread 36 </ b> B of the bolt 36 bites into the locking member 58 with the inner peripheral surface of the locking member 58 being plastically deformed. The material of the locking member 58 may be any material as long as the male screw 36B of the bolt 36 can bite into the locking member 58, and may be made of aluminum other than 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 attachment portion 52A in the axial direction CA of the crankshaft 12A. By adjusting the position of the nut 56 relative 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 is in contact with the flange 28B of the bracket 28, or a 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. Therefore, rattling 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)
With reference to FIGS. 18-20, the structure of the component 30 for manpowered vehicles of 2nd Embodiment is demonstrated. The component 30 for manpowered vehicles of this embodiment differs in the structure of an attachment part compared with the component 30 for manpowered vehicles of 1st Embodiment. In the following description, the same reference numerals are given to components common to the component 30 for the manpowered vehicle of the first embodiment, and the description thereof is omitted.

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

  The first housing 40 </ b> A includes a mounting portion 70. The attachment part 70 has flexibility. The attachment portion 70 is integrated with the first housing 40A. As shown in FIG. 18, the attachment portion 70 includes attachment portions 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 in the same manner as 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 disposed with a gap 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 mounting portion 72A, the second mounting portion 72B, and the fifth mounting 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 disposed with a gap in the axial direction CA of the crankshaft 12A.

  The first attachment portion 72A and the second attachment portion 72B 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 hole 72E is 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 mounting portion 72A, the hole 72E of the second mounting portion 72B, the hole 72E of the fifth mounting portion 72C, and the hole 72E of the sixth mounting portion 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 structure shown in FIGS.

  Preferably, the attachment portion 70B includes fixing portions 74A, 74B, and 74I that are fixed to the housing 40. Preferably, the fixing portions 74 </ b> A, 74 </ b> B, and 74 </ b> I are integrally formed with the housing 40. Preferably, the fixing portions 74A, 74B, and 74I are insert-molded in the housing 40.

  The fixed portion 74A connects the first attachment portion 72A and the second attachment portion 72B. Preferably, the fixing portion 74A is insert-molded in 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 a 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 in a rectangular shape, for example, in the front view of the fixed portion 74A. The through hole 74C is filled with a resin material that forms the first housing 40A when the fixed portion 74A is insert-molded in 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 in the third wall portion 44L and embedded in the third wall portion 44L. Preferably, the fifth mounting portion 72C, the sixth mounting portion 72D, and the fixing portion 74B are integrally formed. Preferably, the fifth mounting portion 72C, the sixth mounting 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 a 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 in a rectangular shape, for example, in a front view of the fixed portion 74B. The through hole 74D is filled with a resin material that forms the first housing 40A when the fixing portion 74B is insert-molded in the first housing 40A.

  The manpowered vehicle component 30 further includes a metal support portion 74E that is connected to the mounting portion 70B and supports a bearing portion 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 portion 70B and the support portion 74E are connected by a fixing portion 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 mounting portion 72B, the sixth mounting portion 72D, and the fixing portion 74I are integrally formed. Preferably, the second mounting portion 72B, the sixth mounting 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 a sheet metal. The fixed portion 74I includes a first connection portion 78A connected to the second attachment portion 72B, and a second connection portion 78B connected to the sixth attachment portion 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 part 74E and the fixing part 74I are formed by, for example, burring or drawing. The support portion 74E is formed to be coaxial with the crankshaft 12A. Preferably, the support portion 74E is insert-molded in the housing 40. The support portion 74E is, for example, insert-molded in 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 accommodating portion 44C.

  The shape of the support portion 74E is equal to the shape of the support portion 54C of the first embodiment. The shape of the fixed portion 74I is equal to the shape of the fixed portion 54I of the first embodiment. The shape of the outer ring support portion 74J is equal to the shape of 54J of the first embodiment 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 mounting portion 72A, the second mounting portion 72B, the fifth mounting portion 72C, and the fixing portion 74A are formed of sheet metal. Preferably, the first mounting portion 72A, the second mounting portion 72B, the fifth mounting portion 72C, the sixth mounting portion 72D, and the fixing portions 74A and 74B are integrally formed. Preferably, the first mounting portion 72A, the second mounting portion 72B, the fifth mounting portion 72C, the sixth mounting 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 formed integrally. 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 is a development view of the attachment portion 70B. As shown in FIG. 20, the second attachment portion 72B is provided in the through hole 74C of the fixing portion 74A. In FIG. 20, a part of the through hole 74C is filled with the second mounting portion 72B. The fixed portion 74A is bent from the second attachment portion 72B, whereby a rectangular through hole 74C is formed. The sixth attachment portion 72D is provided in the through hole 74D of the fixed portion 74B. In FIG. 20, a part 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)
With reference to FIGS. 21-26, the structure of the component 30 for manpowered vehicles of 3rd Embodiment is demonstrated. The component 30 for manpowered vehicles of this embodiment differs in the attachment structure to the housing 40 of the electric motor 32 compared with the component 30 for manpowered vehicles of 1st Embodiment. In the following description, the same reference numerals are given to components common to the component 30 for the manpowered vehicle of the first embodiment, and the description thereof is omitted.

  As shown in FIG. 21, the electric motor 32 is provided in the housing 40. The electric motor 32 has a stator 32D. The electric motor 32 further includes a rotor 32E that rotates integrally 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.

  The stator 32D is insert-molded in the housing 40. In FIG. 21, the stator 32D is insert-molded in the first housing 40A. The motor attachment portion 44D of the first housing 40A includes a mold portion 44M that covers the entire stator 32D and a support portion 44N that supports the first bearing 32F. The mold part 44M includes an accommodating part 44Q that accommodates the rotor 32E. The accommodating portion 44Q includes a through hole having an inner diameter that is substantially the same as the inner diameter of the stator 32D. A female screw 44P is formed on the side of the accommodating portion 44Q opposite to the support portion 44N in the axial direction CA of the crankshaft 12A.

  The support member 32H is formed in a cup shape including the bottom portion 32I and the cylindrical portion 32J. A male screw 32K is formed on the outer peripheral portion of the cylindrical portion 32J. The support member 32H is attached to the mold portion 44M when the male screw 32K is screwed into the female screw 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 attaching the outer ring to the support portion 44N and attaching the inner ring to the output shaft 32A. The second bearing 32G rotatably supports the output shaft 32A by attaching the outer ring to the support member 32H and attaching the inner ring to the output shaft 32A.

  The component 30 for a manpowered vehicle may further include a metal reinforcing member 31. In one example, as shown in FIG. 22, the reinforcing member 31 is preferably provided in the housing 40. Preferably, the reinforcing member 31 is in contact with the electric motor 32. Preferably, the reinforcing member 31 is formed integrally with the mounting portion 50A.

  The reinforcing member 31 includes 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 on 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 part 31B is formed in a substantially cylindrical shape, for example. Contact portion 31B is in contact with 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 mounting portion 50A may be connected, or the reinforcing member 31 and the mounting portion 50A may be arranged apart from each other. The reinforcing member 31 may be formed of sheet metal.

  The shape of the reinforcing member 31 can be arbitrarily changed. 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 shape in which a part of the contact portion 31B is notched in the circumferential direction around the output shaft 32A may be used. 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 32 </ b> E has a magnet embedded rotor structure and includes a rotor core 80 and a permanent magnet 86. The rotor core 80 is fixed to the output shaft 32A (see FIGS. 21 and 22).

  As shown in FIG. 23, the rotor core 80 is made of a soft magnetic material. The rotor core 80 includes two types of laminations, a first lamination 82A and a second lamination 82B. The first lamination 82A constitutes 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 by, for example, pressing. In FIG. 23, the number of second laminations 82B is reduced for convenience of explanation.

  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 magnet 86 is inserted. The second holes 84B are spaced apart in the circumferential direction around the output shaft 32A. In one example, the pitch of the plurality of second holes 84B is equal in the circumferential direction. The second hole 84B is formed in a substantially rectangular shape having a radial direction as a longitudinal direction in the 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 peripheral edge of the second hole 84B and a second protrusion 84E provided on the inner peripheral portion of the second hole 84B. The circumferential width of the outer peripheral edge of the second hole 84B is narrowed by the two first protrusions 84D provided in the one second hole 84B. The width in the circumferential direction of the inner peripheral portion of the second hole 84B is narrowed by the two second protrusions 84E provided in one second hole 84B. The movement of the permanent magnet 86 in the radial direction is restricted by the plurality of protrusions 84C. Note that the second protrusion 84E may be omitted from the protrusion 84C.

  As shown in FIG. 25, the second lamination 82B has a third hole 84F that is connected to two second holes adjacent to the first lamination 82A in the circumferential direction around the output shaft 32A, as compared with the first lamination 82A. The point that is added is different. 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 teeth portion spaced from the center portion. The first lamination 82A is stacked in a state where it is rotated by a predetermined angle around the rotation axis with respect to the adjacent first lamination 82A. In the present embodiment, the first lamination 82A is stacked such that the first teeth and the second teeth are alternately overlapped in the stacking direction.

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

(Fourth embodiment)
With reference to FIGS. 27-30, the structure of the component 30 for manpowered vehicles of 4th Embodiment is demonstrated. The component 30 for a manpowered vehicle of the present embodiment differs from the component 30 for a manpowered vehicle 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 components common to the component 30 for the manpowered vehicle of the first embodiment, and the description thereof is omitted.

  As shown in FIG. 27, the electric motor 32 includes a bus bar unit 90 for connecting a plurality of U-phase coils, a plurality of V-phase coils, and a plurality of W-phase coils of the stator 32 </ b> D, and the housing 40 with the electric motor 32. And a bracket 92 for attaching.

  Bus bar unit 90 includes an annular support 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 apart from each other in the circumferential direction around the output shaft 32A. The 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 third terminal 90W.

  The bracket 92 is attached to the case 32C so as to cover the bus bar unit 90 in the axial direction of the output shaft 32A. The bracket 92 covers the opening of the case 32C. The bus bar unit 90 is disposed between the stator 32D and the bracket 92 in the axial direction of the 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 peripheral portion. The plurality of attachment portions 92D are provided 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 92 </ b> A is provided in the central portion of the bracket 92. The plurality of second holes 92B are inserted with the first terminal block 90B, the second terminal block 90C, and the third terminal block 90D of the bus bar unit 90. 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 at the periphery of the first hole 92A. A first bearing 32F (see FIG. 21) is attached to the support portion 92E.

  A plurality of protruding portions 92F protruding 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 apart from each other in the circumferential direction around the output shaft 32A. The plurality of ribs 92G are provided apart from each other in the circumferential direction around the output shaft 32A. The rib 92G is provided between the protrusions 92F adjacent in the circumferential direction. By providing the rib 92G, vibration of the electric motor 32 is suppressed.

  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 in plan view. The circuit board 94 is provided over two protrusions 92F adjacent in the circumferential direction. The circuit board 94 is attached to the protruding portion 92F of the support portion 92E with a screw 94A. The screw 94A is made of a nonmagnetic material. An example of the nonmagnetic material is an aluminum alloy. The circuit board 94 is supported by the rib 92G. In addition, the attachment structure of the circuit board 94 and the support part 92E can be changed arbitrarily. In one example, the circuit board 94 may be attached to the support portion 92E by any one of adhesive, double-sided tape, and heat caulking.

  Electronic components are mounted on the surface of the circuit board 94 on the support portion 92E side and on the surface opposite to the support portion 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. The harness 96 is pulled out of the bracket 92 via the stopper member 98. The stopper member 98 fixes the harness 96. The harness 96 is electrically connected to a circuit board 34A (see FIG. 4) provided in the housing 40.

  As shown in FIG. 29, the stopper member 98 consists of one member. The stopper member 98 has a cover part 98A and a fixing part 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 in a rectangular shape 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 along the longitudinal direction of the cover portion 98A. 98 C of 1st through-holes are provided in the center part of cover part 98A in planar view. The second through hole 98D is provided on both sides of the first through hole 98C in a direction orthogonal to the longitudinal direction of the cover portion 98A in plan view. The hinge part 98E is provided so that the thickness of the center part of the cover part 98A is thin in a 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 to be separated from each other in a direction orthogonal 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 portion 98F and the second fixing portion 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 a side view. The first protrusions 98J are provided at both ends in the longitudinal direction of the first fixed part 98F in plan view. The first protrusions 98J are provided on both sides in the longitudinal direction of the first fixing part 98F in plan view. The first protrusion 98J protrudes toward the insertion hole 98H. The first engaging portion 98K is provided at an intermediate portion in the longitudinal direction of the first fixing portion 98F in plan view. The first engagement portion 98K engages with the periphery of the third hole 92C while being inserted into the third hole 92C of the bracket 92.

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

  When the harness 96 connected to the connector 94C is inserted 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 portion 98J and the second protrusion portion 98M becomes large. It is 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 a force is applied to the first fixing portion 98F and the second fixing portion 98G so that the insertion hole 98H is small, the first fixing portion 98F and the second protruding portion 98M come into contact with each other, The movement of the second fixing portion 98G is restricted. Thereby, the stopper member 98 is suppressed from being detached from the bracket 92.

(Modification)
The description regarding each embodiment is an illustration of the form which the component for manpowered vehicles according to this invention can take, and it does not intend restrict | limiting the form. The component for a manpowered vehicle according to the present invention can take a form in which, for example, a modification of each embodiment shown below and at least two modifications not contradicting each other are combined. In the following modifications, portions common to the respective embodiments are denoted by the same reference numerals as those of the respective embodiments, and description thereof is omitted.

-In the component 30 for manpowered vehicles of 2nd Embodiment, you may combine the structure of at least one of the components 30 for manpowered vehicles of 3rd and 4th embodiment.
In the first, third, and fourth embodiments, at least one of the attachment portions 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 portions 50A, 50B, and 50C may be insert-molded in the second housing 40B.

In the first, third, and fourth embodiments, one of the attachment portion 50A and the attachment portions 50B, 50C may be made of resin and formed integrally with the housing 40.
In the first and third embodiments, at least one of the first attachment portion 52A and the second attachment portion 52B of the attachment portion 50A may be provided separately from the fixing portion 54A. At least one of the third attachment portion 52C and the fourth attachment portion 52E of the attachment portion 50B may be provided separately from the fixing portion 54B. At least one of the third attachment portion 52D and the fourth attachment portion 52F of the attachment portion 50C may be provided separately from the fixing portion 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 portion 70A and the attachment portion 70B and the fixing portion 74I may be provided individually.

  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 formed integrally 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 portions 50 </ b> A, 50 </ b> B, 50 </ b> C may be made of resin and 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 mounting portions 50, 70 The shape of the sixth attachment portion 72D can be arbitrarily changed. For example, the attachment parts 50 and 70 further include a screw hole. The attachment portions 50 and 70 further include a second flange portion 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 portions 50 and 70, the shape of the first attachment portion 52A will be described with reference to FIG. As shown in FIG. 31A, the first attachment 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. 31B, 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 screw 36B of the bolt 36 into the screw hole 52J.

  -Although the component 30 for human-powered vehicles of each embodiment is applied to the drive unit, the component 30 for human-powered vehicles is disclosed by international patent publication WO2008 / 89932, US Patent publication US2006-257373, etc., for example. The present invention may be applied to various transmissions.

  DESCRIPTION OF SYMBOLS 10 ... Man-powered vehicle, 12A ... Crankshaft, 16 ... Frame, 30 ... Component for man-powered vehicle, 31 ... Reinforcement member, 32 ... Electric motor, 32D ... Stator, 40 ... Housing, 42A ... Through-hole, 49 ... Reinforcement member , 50, 50A, 50B, 50C ... mounting portion, 52A ... first mounting portion, 52B ... second mounting portion, 52C, 52D ... third mounting portion, 52E, 52F ... fourth mounting portion, 52G ... hole, 52H ... First flange portion, 52J ... screw hole, 52K ... second flange portion, 54, 54A, 54B ... fixing portion, 54C ... support portion, 56 ... nut, 70, 70A, 70B ... mounting portion, 72A ... first mounting portion 72B, second mounting portion, 72C, fifth mounting portion, 72D, sixth mounting portion, 72E, hole, 74A, 74B, 74I, fixing portion, 74E, support portion.

Claims (29)

A resin housing provided with a through hole configured to penetrate the crankshaft;
A metal-powered vehicle component, comprising: a metal mounting portion provided on the housing so as to protrude from the housing and configured to be mounted on a frame of the human-powered vehicle.   The component for a manpowered vehicle according to claim 1, wherein the attachment portion includes a fixing portion configured to be fixed to the housing.   The component for a manpowered vehicle according to claim 2, wherein the fixing portion is formed integrally with the housing.   The component for a manpowered vehicle according to claim 3, wherein the fixing portion is insert-molded in the housing. The mounting portion includes a first mounting portion and a second mounting portion,
5. The component for a manpowered vehicle according to claim 1, wherein the first attachment portion and the second attachment portion are arranged with an interval in an axial direction of the crankshaft. The mounting portion includes a first mounting portion and a second mounting portion,
The first attachment portion and the second attachment portion are arranged with an interval in the axial direction of the crankshaft,
The component for human-powered vehicles according to any one of claims 2 to 4, wherein the first attachment portion, the second attachment portion, and the fixing portion are integrally formed.   The component for human-powered vehicles according to claim 6, wherein the first mounting portion, the second mounting portion, and the fixing portion are formed of sheet metal. The mounting portion includes a third mounting portion and a fourth mounting portion,
The component for a manpowered vehicle according to any one of claims 1 to 7, wherein the third attachment portion and the fourth attachment portion are arranged at intervals in a circumferential direction of the crankshaft. The mounting portion includes a third mounting portion and a fourth mounting portion,
The third mounting portion and the fourth mounting portion are arranged at intervals in the circumferential direction of the crankshaft,
The component for human-powered vehicles according to any one of claims 2 to 4, 6, and 7, wherein the third mounting portion, the fourth mounting portion, and the fixing portion are integrally formed.   The human-powered vehicle component according to claim 9, wherein the third mounting portion, the fourth mounting portion, and the fixing portion are formed of sheet metal. The attachment portion further includes a fifth attachment portion,
The human power according to any one of claims 5 to 7, wherein the first attachment portion, the second attachment portion, and the fifth attachment portion are arranged at intervals in a circumferential direction of the crankshaft. Components for driving vehicles. The attachment portion further includes a fifth attachment portion,
The first mounting portion and the second mounting portion, and the fifth mounting portion are arranged at intervals in the circumferential direction of the crankshaft,
The component for a manpowered vehicle according to claim 6 or 7, wherein the first mounting portion, the second mounting portion, the fifth mounting portion, and the fixing portion are integrally formed.   The component for human-powered vehicles according to claim 12, wherein the first attachment portion, the second attachment portion, the fifth attachment portion, and the fixing portion are formed of sheet metal. The attachment portion further includes a sixth attachment portion,
The component for human-powered vehicles according to any one of claims 11 to 13, wherein the fifth attachment portion and the sixth attachment portion are arranged with an interval in an axial direction of the crankshaft. The attachment portion further includes a sixth attachment portion,
The fifth attachment portion and the sixth attachment portion are arranged with a space in the axial direction of the crankshaft,
The component for human-powered vehicles according to claim 12, wherein the first attachment portion, the second attachment portion, the fifth attachment portion, the sixth attachment portion, and the fixing portion are integrally formed.   The component for human-powered vehicles according to claim 15, wherein the first attachment portion, the second attachment portion, the fifth attachment portion, the sixth attachment portion, and the fixing portion are formed of sheet metal. A bearing provided in the housing and rotatably supporting the crankshaft;
The component for human-powered vehicles as described in any one of Claims 1-16 further including the metal support part connected with the said attaching part and supporting the said bearing part. A bearing provided in the housing and rotatably supporting the crankshaft;
A metal support that is coupled to the mounting portion and supports the bearing portion;
The component for human-powered vehicles according to any one of claims 2 to 4, 6, 7, 9, 10, 12, 13, 15, and 16, wherein the attachment portion and the support portion are integrally formed.   The component for human-powered vehicles according to claim 18, wherein the attachment portion and the support portion are formed of sheet metal.   20. The component for a manpowered vehicle according to claim 19, wherein the support portion is insert-molded in the housing. A nut further,
The component for human-powered vehicles according to any one of claims 1 to 20, wherein the attachment portion includes a hole in which the nut is provided.   The component for a manpowered vehicle according to claim 21, wherein the attachment portion further includes a first flange portion formed at an edge of the hole.   23. The component for a manpowered vehicle according to claim 22, wherein the first flange portion is formed by burring.   The component for a manpowered vehicle according to any one of claims 1 to 23, wherein the attachment portion further includes a screw hole.   25. The component for a manpowered vehicle according to claim 24, wherein the attachment portion further includes a second flange portion provided at an edge of the screw hole.   26. The component for a manpowered vehicle according to claim 25, wherein the second flange portion is formed by burring. Further comprising an electric motor having a stator;
27. The component for a manpowered vehicle according to any one of claims 1 to 26, wherein the stator is insert-molded in the housing. An electric motor provided in the housing;
A metal reinforcing member provided in the housing and integrally formed with the mounting portion;
The component for human-powered vehicles according to any one of claims 1 to 27, wherein the reinforcing member is in contact with the electric motor.   29. The component for a manpowered vehicle according to any one of claims 1 to 28, wherein the attachment portion has flexibility.