JP2019031263A - Bicycle component and bicycle component mounting structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bicycle component and a mounting structure of a bicycle component which can be stably mounted on a frame. A bicycle component 40 includes a housing 42 that supports a bicycle crankshaft 32A and a first mounting portion 44 for mounting the housing on the bicycle frame 22D, and the first mounting portion includes the housing. , The housing and the frame are configured to apply a force in a direction in which the housing and the frame are separated from each other. [Selection diagram] FIG. 9

Description

  The present invention relates to a bicycle component and a bicycle component mounting structure.

  As an example of a bicycle component, a drive unit including a motor that assists the propulsion of the bicycle is known. The motor unit of Patent Document 1 as an example thereof includes an attachment portion that can be attached to a bracket provided on a bicycle frame. The mounting portion is inserted between a pair of side plate portions constituting the bracket, and the side plate portion and the mounting portion are fixed with bolts, whereby the motor unit is fixed to the bracket.

Japanese Patent No. 4416620

  According to the motor unit, a gap may be formed due to a manufacturing error between the side plate portion fixed by the bolt and the mounting portion. In that case, the motor unit may rattle against the pair of side plate portions as the bicycle travels.

  An object of the present invention is to provide a bicycle component that can be stably attached to a frame and a mounting structure for the bicycle component.

One aspect of the bicycle component according to the first aspect of the present invention includes a housing that supports a crankshaft of a bicycle, and a first attachment portion for attaching the housing to the frame of the bicycle, the first attachment portion. Is configured to apply a force in a direction in which the housing and the frame are separated from each other to the housing and the frame.
According to the first aspect, the bicycle component can be stably attached to the frame.

The bicycle component according to the second aspect according to the first aspect, wherein the first attachment portion is formed with a male screw, and is coupled to the male screw of the first member and a first member configured to press the housing And a second member configured to press the frame.
If the said 2nd side is followed, the force of the direction in which a housing and a flame | frame will mutually separate can be suitably provided with a 1st member and a 2nd member.

In the bicycle component on the third side according to the second side, the first member is configured such that a first end surface in a first direction that moves in combination with the second member presses the housing.
If the 3rd side is followed, the 1st end face of the 1st member can press a housing, when the 1st member couple | bonds and moves to the 2nd member.

In the bicycle component according to the fourth aspect according to the third aspect, the first member is configured to support the housing in a direction intersecting the first direction.
According to the fourth aspect, the housing is suitably supported by the first member.

The bicycle component according to the fifth aspect according to the third or fourth aspect, wherein the first member includes a first hole extending in the first direction, and the housing is inserted into the first hole of the first member. Including the inserted part.
According to the fifth aspect, the first member can support the housing by inserting the insertion portion of the housing into the first hole of the first member.

In the bicycle component on the sixth side according to the third or fourth side, the housing includes a second hole extending in the first direction, and an end of the first member in the first direction is the second Inserted into the hole.
According to the sixth aspect, the first member can support the housing by inserting the end of the first member into the second hole of the housing.

In the bicycle component according to the seventh aspect according to any one of the second to sixth aspects, at least a part of the second member is provided between the housing and the frame.
According to the seventh aspect, the housing and the frame can be stably connected by the second member.

In the bicycle component according to the eighth aspect according to any one of the second to seventh aspects, at least a part of the second member is provided between the first member and the frame.
According to the eighth aspect, the first member and the frame can be stably coupled by the second member.

The bicycle component on the ninth side according to any one of the second to eighth sides, wherein the second member is configured to contact a part of the frame in a direction intersecting the first direction. .
According to the ninth aspect, a force in the first direction can be suitably applied from the second member to the frame.

In the bicycle component according to the tenth aspect according to any one of the second to ninth aspects, at least one of the first member and the second member further includes a tool engagement portion capable of engaging a tool.
According to the tenth aspect, the bicycle component can be easily attached to the frame with a tool.

In the bicycle component on the eleventh side according to the tenth side, the tool engaging portion is formed on at least one of an inner peripheral portion or an outer peripheral portion of the first member.
According to the eleventh aspect, the tool can be easily engaged with the tool engaging portion.

In the bicycle component according to the twelfth aspect according to the first aspect, the first attachment portion is configured to press the frame in a direction away from the first portion coupled to the housing and in a direction away from the housing. 2 parts.
According to the twelfth aspect, a force in a direction in which the housing and the frame are separated from each other can be suitably applied by the first portion and the second portion.

The bicycle component according to the thirteenth aspect according to the twelfth aspect, wherein the housing has a first screw portion, and the first portion of the first attachment portion is coupled to the first screw portion. The second portion of the first attachment portion extends in a second direction intersecting a first direction in which the second screw portion is coupled to the first screw portion and moves.
According to the thirteenth aspect, the second portion can press the housing by coupling and moving the second screw portion to the first screw portion.

In the bicycle component according to the fourteenth aspect according to the thirteenth aspect, the second screw portion is provided with a female screw, and the first screw portion of the housing is coupled to the female screw of the second screw portion. Male threads are provided.
According to the fourteenth aspect, the second portion can press the housing by moving the female screw of the second screw portion coupled to the male screw of the first screw portion.

In the bicycle component according to the fifteenth aspect according to the thirteenth or fourteenth aspect, the first screw portion of the housing is formed to surround an outer peripheral surface of the crankshaft around a rotation axis of the crankshaft.
According to the fifteenth aspect, the housing can be stably attached to the frame by the first attachment portion.

The bicycle component according to the sixteenth aspect according to any one of the thirteenth to fifteenth aspects, wherein the first attachment portion includes an annular member including an inner peripheral portion and an outer peripheral portion, and the first portion includes the inner portion. Provided in the peripheral portion, the second portion is provided in the outer peripheral portion.
According to the sixteenth aspect, a force in a direction in which the housing and the frame are separated from each other by the first portion provided on the inner peripheral portion of the annular member and the second portion provided on the outer peripheral portion of the annular member is suitable. Can be granted.

In the bicycle component according to the seventeenth aspect according to any one of the thirteenth to sixteenth aspects, the first attachment portion further includes a tool engagement portion capable of engaging a tool.
According to the seventeenth aspect, the bicycle component can be easily attached to the frame with a tool.

The bicycle component according to the eighteenth aspect according to any one of the first to seventeenth aspects, further comprising a second attachment portion for attaching the housing to the bicycle frame, wherein the first attachment portion and the second attachment portion are provided. The attachment portions are provided to be separated from each other in a predetermined direction.
According to the eighteenth aspect, the bicycle component can be stably attached to the frame by the first attachment portion and the second attachment portion.

In the bicycle component according to the nineteenth aspect according to the eighteenth aspect, the second attachment portion includes a screw hole formed in the housing and a connecting member that passes through the frame and is connected to the screw hole. .
According to the nineteenth aspect, the bicycle component can be stably attached to the frame by the second attachment portion.

In the bicycle component according to the twentieth aspect according to any one of the first to nineteenth aspects, the housing houses at least a part of a motor that assists in propelling the bicycle.
According to the fourteenth aspect, the bicycle component that houses the motor can be stably attached to the frame.

In the bicycle component according to the twenty-first aspect according to any one of the first to twentieth aspects, at least a part of the housing is configured to be accommodated in the frame.
According to the fifteenth aspect, the design of the bicycle can be improved.

One form of the bicycle component mounting structure according to the twenty-second aspect of the present invention includes the first mounting portion of the bicycle component according to any one of the first to twenty-first side surfaces, and the frame.
According to the twenty-second aspect, the bicycle component can be stably attached to the frame by the bicycle component attachment structure.

One form of the bicycle component mounting structure according to the twenty-third aspect of the present invention includes the first mounting portion of the bicycle component according to any one of the twelfth to seventeenth aspects, and the frame. Includes a frame main body and a mounting member separate from the frame main body, and the second portion presses the mounting member in a direction away from the housing.
According to the twenty-third aspect, the portion pressed against the second portion by the mounting member can be suitably formed on the frame.

In the bicycle component mounting structure according to the 24th side according to the 23rd side, the mounting member is formed in an annular shape and includes an inner peripheral portion and an outer peripheral portion, and the inner peripheral portion is in contact with the first mounting portion. The outer peripheral portion is attached to the frame body.
According to the twenty-fourth aspect, the bicycle component can be stably attached to the frame.

The bicycle component mounting structure on the 25th side according to the 23rd or 24th side further includes a bolt for mounting the mounting member to the frame body.
According to the twenty-fifth aspect, the attachment member can be attached to the frame main body with a bolt.

  The bicycle component of the present invention can be stably attached to the frame.

The side view of the bicycle containing the component for bicycles of a 1st embodiment. The perspective view of the crankshaft vicinity of the bicycle of FIG. The perspective view of the component for bicycles of a 1st embodiment. The left view of the crankshaft vicinity of the bicycle of FIG. The right view of the crankshaft vicinity of the bicycle of FIG. The perspective view of the crankshaft vicinity of the bicycle of FIG. Sectional drawing which follows the D7-D7 line | wire of FIG. The perspective view of the 2nd member of FIG. Sectional drawing which expands and shows a part of FIG. The perspective view of the crankshaft vicinity of the bicycle containing the component for bicycles of 2nd Embodiment. The disassembled perspective view of the bicycle component and bracket of 3rd Embodiment. The fragmentary sectional view of the component for bicycles of a 3rd embodiment. The 1st perspective view of the component for bicycles of a 4th embodiment. FIG. 14 is a second perspective view of the bicycle component of FIG. 13. The left view of the state in which the component for bicycles of FIG. 13 is attached to the flame | frame. The right view of the state in which the component for bicycles of FIG. 13 is attached to the flame | frame. The bottom view of the state in which the component for bicycles of FIG. 13 is attached to the flame | frame. The perspective view of the attachment member of FIG. Sectional drawing which follows the D19-D19 line | wire of FIG. Sectional drawing which follows the D20-D20 line | wire of FIG. Sectional drawing which follows the D21-D21 line | wire of FIG. The left view of the state in which the component for bicycles of 5th Embodiment is attached to the flame | frame. FIG. 23 is a cross-sectional view taken along line D23-D23 of FIG. FIG. 23 is a sectional view taken along line D24-D24 in FIG. 22; The right view of the crankshaft vicinity of the bicycle containing the component for bicycles of a 1st modification. The left view of the crankshaft vicinity of the bicycle of the 2nd modification. FIG. 27 is a right side view of the vicinity of the crankshaft of the bicycle of FIG. The right view of the crankshaft vicinity of the bicycle of the 3rd modification.

(First embodiment)
A bicycle 10 including a bicycle component 40 of the first embodiment will be described with reference to FIGS. Although the bicycle 10 is a road bike, the present invention can also be applied to bicycles other than road bikes, such as mountain bikes and city bikes. The up-down direction of the bicycle 10 is the up-down direction in a state where the bicycle 10 is upright on a horizontal plane in a state where the bicycle 10 can run. The left-right direction of the bicycle 10 is the left-right direction in a state where the bicycle 10 is upright on a horizontal plane in a state where the bicycle 10 can run and the traveling direction of the bicycle 10 is viewed.

As shown in FIGS. 1 and 2, the bicycle 10 includes a bicycle body 12, a wheel 14, a drive mechanism 16, a battery 18, and a bicycle component 40. In the present embodiment, the bicycle component 40 is a bicycle drive unit.
The bicycle body 12 includes a frame 22, a front fork 24 connected to the frame 22, and a handle bar 26B detachably connected to the front fork 24 via a stem 26A. The front fork 24 is supported by the frame 22.

  The frame 22 includes a head tube 22A, a top tube 22B, a down tube 22C, a component mounting portion 22D, a seat tube 22E, a seat stay 22F, and a chain stay 22G. The component attachment portion 22D is connected to the down tube 22C, the seat tube 22E, and the seat stay 22F, respectively.

  The wheel 14 includes a front wheel 28 and a rear wheel 30. The axle 28 </ b> A of the front wheel 28 is connected to the end of the front fork 24. The axle 30 </ b> A of the rear wheel 30 is connected to the rear end of the frame 22.

  The drive mechanism 16 includes a crank 32 and a pedal 34. The crank 32 includes a crankshaft 32A and a crank arm 32B. The drive mechanism 16 transmits the manpower driving force applied to the pedal 34 to the rear wheel 30. The drive mechanism 16 includes a front rotating body 36 coupled to the output portion 51 of the bicycle component 40. The front rotating body 36 includes a sprocket, a pulley, or a bevel gear. The drive mechanism 16 is configured to transmit the rotation of the crank 32 to the rear rotating body 38 coupled to the rear wheel 30 via, for example, a chain, a belt, or a shaft. The rear rotating body 38 includes a sprocket, a pulley, or a bevel gear. A one-way clutch (not shown) is provided between the rear rotating body 38 and the rear wheel 30. The one-way clutch is configured such that when the rear rotating body 38 rotates forward, the rear wheel 30 is rotated forward, and when the rear wheel 30 rotates backward, the rear rotating body 38 is not rotated backward. The front rotating body 36 may include a plurality of front sprockets. The rear rotating body 38 may include a plurality of rear sprockets. The crankshaft 32 </ b> A may be included in the bicycle component 40.

  As shown in FIG. 2, the component attachment portion 22D is connected to the lower end portion of the down tube 22C, the lower end portion of the seat tube 22E, and the front end portion of the chain stay 22G in the frame 22, respectively. The component attachment portion 22D is configured to accommodate at least a part of the bicycle component 40. The component attachment portion 22D is preferably formed integrally with the down tube 22C, the seat tube 22E, and the chain stay 22G, but may be connected by welding, adhesion, or the like. The frame 22 is provided with a first opening 23 </ b> A for accommodating the bicycle component 40 and the battery 18 in the frame 22. The first opening portion 23A is provided in the component attachment portion 22D, the portion connected to the component attachment portion 22D of the seat tube 22E, and the portion connected to the component attachment portion 22D of the down tube 22C, and above the bicycle 10. Open toward. The component attachment portion 22D includes a first side wall portion 23D and a second side wall portion 23E (see FIG. 4) arranged in the left-right direction of the bicycle 10, and a bottom wall portion 23F arranged in the lower direction of the bicycle 10. The first side wall portion 23D and the second side wall portion 23E are connected to the down tube 22C, the seat tube 22E, and the chain stay 22G. The bottom wall portion 23F is connected to the lower end portions of the first side wall portion 23D and the second side wall portion 23E, and is connected to the down tube 22C and the chain stay 22G. The opening of the first opening 23A is formed so as to extend to a position where the crankshaft 32A is provided in the side wall parts 23D and 23E of the component mounting part 22D. A cover 23B (see FIG. 4) is preferably attached to the first opening 23A. The cover 23B closes the opening of the first opening 23A. A second opening 23C (see FIG. 6) is provided in the bottom wall portion 23F of the component attachment portion 22D. The bicycle component 40 is inserted into the opening of the first opening 23 </ b> A from above and attached to the frame 22. The opening of the second opening 23C extends, for example, to the first side wall 23D and the second side wall 23E in the width direction of the bicycle 10.

  The battery 18 includes one or more battery cells. The battery cell includes a rechargeable battery. The battery 18 is mounted on the bicycle 10 and supplies power to the bicycle component 40. The battery 18 is housed inside the frame 22. The battery 18 is preferably accommodated in the down tube 22C.

  At least a part of the bicycle component 40 is disposed inside the frame 22. The bicycle component 40 of the present embodiment is disposed in the internal space of the component attachment portion 22D. One end of the bicycle component 40 is provided at a portion of the component attachment portion 22D to which the seat stay 22F and the chain stay 22G are connected. A battery 18 is connected to the other end of the bicycle component 40. The bicycle component 40 and the battery 18 are arranged side by side along the longitudinal direction of the down tube 22C.

  As shown in FIGS. 3 to 5, the bicycle component 40 includes a housing 42 and a first attachment portion 44 for attaching the housing 42 to the bicycle 10. The bicycle component 40 further includes a second attachment portion 46 for attaching the housing 42 to the frame 22 of the bicycle 10. The housing 42 supports the crankshaft 32 </ b> A of the bicycle 10. The housing 42 has a support portion 54 that supports the crankshaft 32A. The housing 42 accommodates at least a part of the motor 48. Both ends of the crankshaft 32A in the axial direction protrude from the housing 42 to the outside.

  The motor 48 is provided in the housing 42. The housing 42 is configured so that at least a part thereof can be accommodated in the frame 22. The motor 48 is included in the bicycle component 40. The motor 48 assists the propulsion of the bicycle 10. The motor 48 includes an electric motor. The motor 48 is a so-called brushless motor. The bicycle component 40 includes a speed reducer 50 and a control unit 52. The reducer 50 decelerates and outputs the rotation of the motor 48. In one example, the axial direction of the output shaft of the motor 48 is orthogonal to the axial direction of the crankshaft 32A. In this case, the speed reducer 50 preferably converts the rotation of the output shaft of the motor 48 into rotation in a direction orthogonal to the output shaft of the motor 48. The axis of the output shaft of the motor 48 and the axis of the crankshaft 32A may be orthogonal to each other or may be offset. The reduction gear 50 includes a bevel gear, for example. The reduction gear 50 may further include a planetary gear mechanism. The reduction gear 50 outputs the rotation of the motor 48 to the output unit 51 disposed around the crankshaft 32A. The rotation of the motor 48 is transmitted to the front rotating body 36 via the speed reducer 50 and the output unit 51.

  The control unit 52 includes a substrate and a drive circuit. The drive circuit includes an inverter circuit and controls electric power supplied from the battery 18 to the motor 48. Control unit 52 includes an arithmetic processing unit that executes a predetermined control program. The arithmetic processing unit includes, for example, a CPU (Central Processing Unit) or an MPU (Micro Processing Unit). The control unit 52 may include one or a plurality of microcomputers. Control unit 52 may further include a storage unit and a timer. 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 housing 42 includes a first housing part 56 and a second housing part 58. The 1st accommodating part 56 has a part formed in a cylinder shape. The first accommodating portion 56 accommodates the motor 48, a part of the speed reducer 50, and the control portion 52. It is preferable that one end 56 </ b> A in the longitudinal direction of the first housing portion 56 is provided with an electrical terminal for electrically connecting the battery 18 and the control unit 52. The second accommodating portion 58 is preferably formed so that the shape seen from the axial direction of the crankshaft 32A is a disc shape. The second housing portion 58 is connected to the other end portion 56 </ b> B in the longitudinal direction of the first housing 60. The 1st accommodating part 56 and the 2nd accommodating part 58 may be formed integrally, and may be formed separately. At least a part of the first storage part 56 and at least a part of the second storage part 58 may be integrally formed. The support part 54 is provided in the second storage part 58. The support portion 54 rotatably supports the crankshaft 32A.

  As shown in FIGS. 3 and 7, the housing 42 includes a first housing 60 and a second housing 62. The first housing 60 includes one side surface portion of the housing 42 in the axial direction of the crankshaft 32A. The second housing 62 includes the other side surface portion of the housing 42 in the axial direction of the crankshaft 32A. The housing 42 has a housing space formed therein by assembling the first housing 60 and the second housing 62 together. The first housing 60 and the second housing 62 are fixed to each other by bolts, for example.

  Bicycle component 40 further includes a first bearing 64A, a second bearing 64B, a first one-way clutch 66A, and a second one-way clutch 66B. The first bearing 64A is provided between the first housing 60 and the crankshaft 32A, and supports the crankshaft 32A so as to be rotatable with respect to the first housing 60. The second bearing 64 </ b> B is provided between the second housing 62 and the output unit 51, and supports the output unit 51 so as to be rotatable with respect to the second housing 62. The first bearing 64A and the second bearing 64B are provided apart from each other in the axial direction of the crankshaft 32A. The first bearing 64A is provided near one end of the housing 42 in the axial direction of the crankshaft 32A. The second bearing 64B is provided near the other end of the housing 42 in the axial direction of the crankshaft 32A.

  The output unit 51 is provided coaxially with the crankshaft 32A. The output unit 51 is formed in a cylindrical shape. The output unit 51 covers a part of the outer peripheral surface of the crankshaft 32A. The output portion 51 protrudes outside the housing 42 on the other axial side of the crankshaft 32A. The other end portion in the axial direction of the crankshaft 32A extends from the output portion 51 to the other end portion in the axial direction of the crankshaft 32A.

  The first one-way clutch 66A is provided between the crankshaft 32A and the output unit 51. The first one-way clutch 66A is provided at an end portion of the output portion 51 close to one of the crankshafts 32A in the axial direction. Part of the first one-way clutch 66A may be formed integrally with at least one of the crankshaft 32A and the output unit 51. For example, the first one-way clutch 66A includes a roller clutch. In this case, the inner ring of the first one-way clutch 66A may be formed integrally with the crankshaft 32A, and the outer ring of the first one-way clutch 66A may be formed integrally with the output unit 51.

  A third bearing 64C is provided between an end portion of the output portion 51 close to the other axial direction of the crankshaft 32A and the crankshaft 32A. The third bearing 64C includes, for example, a sleeve or a needle bearing. The crankshaft 32A is supported by the second bearing 64B via the third bearing 64C and the output unit 51. The second bearing 64B and the third bearing 64C are preferably provided at a position where at least a part thereof overlaps in the direction perpendicular to the crankshaft 32A.

  The first one-way clutch 66A transmits the rotation of the crankshaft 32A in the first rotation direction to the output unit 51, and does not transmit the rotation of the output unit 51 in the first rotation direction to the crankshaft 32A. The second one-way clutch 66 </ b> B is provided between the output unit 51 and the gear 51 </ b> A that connects the speed reducer 50. The second one-way clutch 66 </ b> B transmits the rotation of the motor 48 in the first rotation direction to the output unit 51, and does not transmit the rotation of the output unit 51 in the first rotation direction to the motor 48. The first rotation direction of the crankshaft 32A is a direction in which the crankshaft 32A is rotated when the bicycle 10 is moved forward. The first rotation direction of the output unit 51 is a direction in which the output unit 51 is rotated when the bicycle 10 is moved forward. The first rotation direction of the motor 48 is a direction in which the motor 48 rotates when the motor 48 propels the bicycle 10 forward. The output unit 51 and the housing 42 are provided with a torque sensor (not shown) for detecting the rotational force transmitted to the output unit 51. The torque sensor includes, for example, a strain sensor or a magnetostrictive sensor. The control unit 52 controls the motor 48 according to the output of the torque sensor.

  As shown in FIG. 4, at least a part of the housing 42 is configured to be accommodated in the frame 22. Specifically, the housing 42 is accommodated in a portion of the component attachment portion 22D on the side connected to the down tube 22C, and the second accommodation portion 58 is the component attachment portion. It is accommodated in a portion of 22D connected to the seat tube 22E and the chain stay 22G. In the housing 42, the direction parallel to the rotation axis of the motor 48 and the direction parallel to the rotation axis of the crankshaft may be orthogonal to each other so that the rotation axis of the motor 48 is along the longitudinal direction of the down tube 22C. preferable. Attached to the frame 22. A portion of the component mounting portion 22D in which the first storage portion 56 is stored may be included in the down tube 22C.

  As shown in FIGS. 4 and 7, the first attachment portion 44 includes a first member 68 and a second member 70. The first attachment portion 44 is provided in the housing 42 independently of the support portion 54. The first attachment portion 44 and the second attachment portion 46 are provided to be separated from each other in a predetermined direction. The predetermined direction is parallel to the axial direction C of the crankshaft 32A. The first attachment portion 44 is provided on the first side surface portion 42X of the housing 42 in the axial direction C of the crankshaft 32A. The second attachment portion 46 is provided on the second side surface portion 42Y opposite to the first side surface portion 42X of the housing 42 in the axial direction C of the crankshaft 32A. The first side surface portion 42X includes one side surface portion of the second accommodating portion 58 in the axial direction C of the crankshaft 32A. The second side surface portion 42Y includes the other side surface portion of the second accommodating portion 58 in the axial direction C of the crankshaft 32A.

  The first member 68 is formed in an annular shape. The first member 68 includes a first hole 68A extending in the first direction. The first hole 68A includes a through hole through which the crankshaft 32A passes. The first member 68 has a through hole. The first direction coincides with the axial direction C of the crankshaft 32A. The first member 68 has a male screw 68B. The male screw 68B is formed on the outer periphery of the first member 68. The first member 68 is configured to support the housing 42 in a direction that intersects the first direction and the axial direction C of the crankshaft 32A. The housing 42 includes an insertion portion 42 </ b> A that is inserted into the first hole 68 </ b> A of the first member 68. The insertion portion 42 </ b> A is preferably included in the support portion 54. As for the 1st member 68, inner peripheral part 68D supports 42 A of insertion parts. The inner diameter of the portion inserted into the insertion portion 42A of the first member 68 is preferably slightly larger than the outer diameter of the insertion portion 42A.

  The second member 70 is formed in an annular shape. At least a part of the second member 70 is provided between the housing 42 and the frame 22. At least a part of the second member 70 is provided between the first member 68 and the frame 22. The second member 70 is configured to contact a part of the frame 22 in a direction crossing the first direction and in the axial direction C of the crankshaft 32A. The second member 70 is in contact with the second side wall portion 23E of the component attachment portion 22D. The second member 70 includes a hole 70A extending in the first direction. The second member 70 is formed with a female screw 70B coupled to the male screw 68B of the first member 68. The female screw 70 </ b> B is formed on the inner peripheral portion of the second member 70. As shown in FIG. 8, a frame engaging portion 70 </ b> E is formed on the side surface portion 70 </ b> D of the second member 70. The frame engaging portion 70E has a convex portion 70F protruding in the axial direction of the crankshaft 32A. The convex portions 70F are provided at intervals in the circumferential direction of the crankshaft 32A. The frame 22 is provided with a concave portion 22X corresponding to the convex portion 70F of the frame engaging portion 70E. When the convex portion 70F of the frame engaging portion 70E is fitted into the concave portion 22X of the frame 22, the rotation of the second member 70 around the central axis with respect to the frame 22 is restricted. On the inner peripheral side of the second member 70, the end of each convex portion 70F may be connected in an annular shape.

  The first member 68 is configured to press the housing 42. Specifically, the first member 68 is configured such that the first end surface 68 </ b> C in the first direction that moves while being coupled to the second member 70 presses the housing 42. The first member 68 is configured such that the first end surface 68 </ b> C in the first direction screwed into the second member 70 presses the housing 42. The second member 70 is configured to press the frame 22. Specifically, the portion between the convex portions 70 </ b> F of the side surface portion 70 </ b> D of the second member 70 is configured to come into contact with the portion of the frame 22 that faces the second side surface portion 42 </ b> Y of the housing 42.

  At least one of the first member 68 and the second member 70 further includes a tool engaging portion 72 capable of engaging a tool. The tool engaging portion 72 is preferably formed on at least one of the inner peripheral portion 68D and the outer peripheral portion 68E of the first member 68. In the present embodiment, the tool engaging portion 72 is formed on the inner peripheral portion 68 </ b> D of the first member 68. The tool engaging portion 72 includes a convex portion that protrudes in the radial direction with respect to the crankshaft 32A and a concave portion that is recessed. It is preferable that the convex portions and the concave portions are alternately arranged at a predetermined interval in the circumferential direction around the crankshaft 32A.

As shown in FIGS. 5 and 7, the second attachment portion 46 includes a screw hole 42 </ b> B formed in the housing 42 and a first connecting member 74.
The first connecting member 74 is formed in an annular shape. The first connecting member 74 includes a hole 74A extending in the first direction. The first connecting member 74 passes through the frame 22 and is connected to the screw hole 42B. The first connecting member 74 passes through the first side wall portion 23D of the component attachment portion 22D. A female screw is formed in the screw hole 42B. The first connecting member 74 includes a male screw 74B for coupling to the female screw of the screw hole 42B. The outer peripheral part of the 1st connection member 74 contains the part in which the external thread 74B is formed, and the side part 74C extended on the outer side of radial direction rather than the part in which the external thread 74B is formed. The first connecting member 74 corresponds to a connecting member that penetrates the frame 22 and is connected to the screw hole 42B. The side surface portion 74 </ b> C is configured to sandwich the frame 22 between the housing 42. It is preferable to form a tool engaging portion that engages the tool with at least one of the outer peripheral portion and the inner peripheral portion of the side surface portion 74C. The tool engaging portion includes, for example, a concavo-convex shape that protrudes or dents in the radial direction of the first connecting member 74. The screw hole 42B may include a male screw instead of a female screw. In this case, the external thread of the first connecting member 74 may be omitted, and the internal thread of the first connecting member 74 may be formed with an internal thread coupled to the screw hole 42B.

  The bicycle component 40 preferably further includes a third attachment portion 76 for attaching the housing 42 to the frame 22. As shown in FIG. 6, the third attachment portion 76 is provided in the housing 42 in a direction that intersects the axial direction of the crankshaft 32 </ b> A. The third attachment portion 76 includes a screw hole 78 and a second connecting member 80. The screw hole 78 is formed in the housing 42. The second connecting member 80 passes through the frame 22 and is connected to the screw hole 78. The second connecting member 80 includes a bolt. The second connecting member 80 may include a plurality of screw holes and a plurality of bolts. In this case, the plurality of screw holes are preferably provided at intervals in the axial direction of the crankshaft 32A.

  As shown in FIG. 9, the first attachment portion 44 is configured to apply a force in a direction in which the housing 42 and the frame 22 are separated from each other to the housing 42 and the frame 22. The first attachment portion 44 is configured to apply a force in a direction in which the housing 42 and the frame 22 are separated from each other in the axial direction C of the crankshaft 32 </ b> A to the housing 42 and the frame 22. Specifically, the first member 68 applies a force in the direction A <b> 1 toward the second mounting portion 46 side to the housing 42 when the first end surface 68 </ b> C presses the housing 42. The second member 70 applies a force toward the direction A2 opposite to the direction A1 to the frame 22 by the axial force of the second member 70.

  The second mounting portion 46 is configured to apply a force in a direction in which the housing 42 and the frame 22 approach each other to the housing 42 and the frame 22. The second attachment portion 46 is configured to apply a force in a direction in which the housing 42 and the frame 22 approach each other in the axial direction C of the crankshaft 32 </ b> A to the housing 42 and the frame 22. Specifically, the first connecting member 74 applies a force in the direction B <b> 1 toward the first mounting portion 44 side to the housing 42 by the axial force of the first connecting member 74. The first connecting member 74 applies a force in the direction B2 opposite to the direction B1 to the frame 22 by the axial force of the first connecting member 74.

  In the housing 42, the first housing 60 is pushed toward the second housing 62 side. For this reason, the assembly part of the 1st housing 60 and the 2nd housing 62 becomes difficult to space apart. For this reason, it becomes difficult to produce a deformation | transformation or a clearance gap in the housing 42. FIG.

(Second Embodiment)
With reference to FIG. 10, the component 40 for bicycles of 2nd Embodiment is demonstrated. The bicycle component 40 of the second embodiment is the same as the bicycle component 40 of the first embodiment except that the mounting posture with respect to the frame 22 is different from the bicycle component 40 of the first embodiment. About the structure which is common in embodiment, the code | symbol same as 1st Embodiment is attached | subjected and the overlapping description is abbreviate | omitted. In the present embodiment, at least a part of the first housing portion 56 of the housing 42 is housed in the seat tube 22E.

  As shown in FIG. 10, at least a part of the first accommodation portion 56 of the housing 42 is accommodated in the seat tube 22E, and the second accommodation portion 58 is accommodated in the component attachment portion 22D. The frame 22 is provided with a first opening 90 </ b> A for accommodating the bicycle component 40 in the frame 22. 90 A of 1st opening parts are provided in the part connected to the component attachment part 22D of the component attachment part 22D and the component attachment part 22D of the seat tube 22E, and the down tube 22C. The first opening 90 </ b> A opens forward and upward of the bicycle 10. A cover (not shown) is preferably attached to the first opening 90A. The cover closes the opening of the first opening 90A.

  At least a part of the bicycle component 40 is disposed inside the frame 22. At least a part of the bicycle component 40 of the present embodiment is disposed inside the seat tube 22E. Specifically, a part of the first accommodating portion 56 is accommodated in the seat tube 22E, and the second accommodating portion 58 is accommodated in the component attachment portion 22D. It is preferable that an electrical terminal connected to the control unit 52 (see FIG. 3) is provided on the outer peripheral portion of the second housing portion 58. An electrical terminal provided on the outer peripheral portion of the second housing portion 58 is connected to the battery 18 disposed inside the down tube 22C. The housing 42 is attached to the frame 22 so that the rotation axis of the motor 48 is substantially along the longitudinal direction of the seat tube 22E.

(Third embodiment)
With reference to FIG. 11 and FIG. 12, the component 92 for bicycles of 3rd Embodiment is demonstrated. Since the bicycle component 92 according to the third embodiment is the same as the bicycle component 40 according to the first embodiment except that the bicycle component 92 is provided outside the frame 22, the configuration common to the first embodiment is described in the first embodiment. The same reference numerals as those in the embodiment are attached, and redundant description is omitted.

  As shown in FIG. 11, the frame 22 is provided with a bracket 100 for attaching the bicycle component 92. The bracket 100 is connected to the lower end of the down tube 22C, the lower end of the seat tube 22E, and the front end of the chain stay 22G in the frame 22, respectively.

  The bicycle component 92 is at least partially disposed inside the frame 22. A part of the bicycle component 92 of the present embodiment is disposed inside the bracket 100.

  The bicycle component 92 includes a housing 94 and a first attachment portion 96 for attaching the housing 94 to the bicycle 10. The bicycle component 92 further includes a second attachment portion 98 for attaching the housing 94 to the frame 22 of the bicycle 10. The housing 94 supports the crankshaft 32 </ b> A of the bicycle 10. The housing 94 has a support portion 54 that supports the crankshaft 32A. The housing 94 accommodates at least a part of the motor 48.

  The motor 48 is provided in the housing 94. The housing 94 is configured so that at least a part thereof can be accommodated in the frame 22. The bicycle component 92 includes a motor 48, a speed reducer (not shown), and a control unit (not shown). In one example, the axial direction of the output shaft of the motor 48 is parallel to the axial direction C of the crankshaft 32A. The reducer decelerates and outputs the rotation of the motor 48. The speed reducer includes, for example, a gear mechanism. The speed reducer outputs the rotation of the motor 48 to an output unit disposed around the crankshaft 32A. The rotation of the motor 48 is transmitted to the front rotating body 36 (see FIG. 1) via the speed reducer and the output unit.

  The housing 94 is configured so that at least a part thereof can be accommodated in the frame 22. Specifically, in the housing 94, a convex portion 94 </ b> A protruding from the outer peripheral portion of the housing 94 is fitted into the bracket 100. The housing 94 preferably includes a plurality of convex portions 94A. It is preferable that the first attachment portion 96 and the second attachment portion 98 are selectively provided on the plurality of convex portions 94A.

  The first attachment portion 96 includes a first member 102 and a second member 70. The first attachment portion 96 is provided in the housing 94 independently of the support portion 54 (see FIG. 11). The first attachment portion 96 is provided on the first side surface portion 94X of the housing 94 in the axial direction C of the crankshaft 32A. The first attachment portion 96 and the second attachment portion 98 are provided apart from each other in a predetermined direction. The predetermined direction is parallel to the axial direction C of the crankshaft 32A. The first mounting portion 96 is more than the second mounting portion 98 in the first side surface portion 94X of the housing 94 in the axial direction C of the crankshaft 32A or the outer peripheral portion of the housing 94 around the axial direction C of the crankshaft 32A. It is provided in a portion near the one side surface portion 94X. In the axial direction C of the crankshaft 32A, the second mounting portion 98 is formed on the second side surface portion 94Y opposite to the first side surface portion 94X of the housing 94 or the outer peripheral portion around the axial direction C of the housing crankshaft 32A. Of these, the first mounting portion 96 is provided closer to the second side surface portion 94Y.

  As shown in FIG. 12, the first member 102 is a bolt. The first member 102 is formed with a male screw 102A. The first member 102 is preferably configured to support the housing 94 in a direction intersecting the first direction and the axial direction C of the crankshaft 32A. The first member 68 may not support the housing 94 in the first direction and the direction intersecting the axial direction C of the crankshaft 32A. The housing 94 includes a second hole 94D extending in the first direction. The second hole 94D is formed in the first attachment portion 96. An end portion in the first direction of the first member 102 is inserted into the second hole 94D. In the first member 102, the male screw 102 </ b> A is screwed into the female screw 70 </ b> B of the second member 70.

  The first member 102 is configured to press the housing 94. Specifically, the first member 102 is configured such that the first end surface 102 </ b> B in the first direction screwed into the second member 70 presses the housing 94. The second member 70 is configured to press the frame 22. Specifically, a portion between the convex portions 70F (see FIG. 8) of the second member 70 is configured to be able to contact a portion of the frame 22 that faces the first mounting portion.

  The second attachment portion 98 includes a screw hole 94 </ b> C formed in the housing 94 and a first connecting member 95. The first connecting member 95 is a bolt. The first connecting member 95 passes through the frame 22 and is connected to the screw hole 94C. The first connecting member 95 includes a male screw 95A for coupling to the female screw of the screw hole 94C.

(Fourth embodiment)
A bicycle component 110 and a mounting structure 130 for the bicycle component 110 according to the fourth embodiment will be described with reference to FIGS. Since the bicycle component 110 of the fourth embodiment is the same as the bicycle component 40 of the first embodiment except that the configuration of the housing 112 and the mounting structure 130 are different, the configuration common to the first embodiment is as follows. The same reference numerals as those in the first embodiment are given, and duplicate descriptions are omitted. The bicycle component 110 of the present embodiment is a bicycle drive unit.

  As shown in FIGS. 13 and 14, the bicycle component 110 includes a housing 112 and a first attachment portion 114 for attaching the housing 112 to the bicycle 10. The bicycle component 110 further includes a second attachment portion 116 for attaching the housing 112 to the frame 132 of the bicycle 10. The housing 112 supports the crankshaft 32 </ b> A of the bicycle 10. The housing 112 has a support portion 118 that supports the crankshaft 32A. The housing 112 accommodates at least a part of the motor 48. The housing 112 includes a first housing 112X and a second housing 112Y. The first housing 112X includes a first side surface portion in the axial direction C of the crankshaft 32A. The second housing 112Y includes a second side surface portion opposite to the first side surface portion of the housing 112 in the axial direction C of the crankshaft 32A. The first housing 112X and the second housing 112Y are attached to each other by a bolt B. The housing 112 further includes a third housing 112Z. The third housing 112Z is connected to the outer periphery of the first housing 112X by a bolt in a direction perpendicular to the axial direction C of the crankshaft 32A. The motor 48 is accommodated in the third housing 112Z.

  The motor 48 is provided in the housing 112. The housing 112 is configured so that at least a part thereof can be accommodated in the frame 132. The bicycle component 110 includes a motor 48, a speed reducer (not shown), and a control unit (not shown). The housing 112 of the bicycle component 110 accommodates the same members as the bicycle component 40 of the first embodiment in the same arrangement.

  As shown in FIGS. 15 to 17, the mounting structure 130 for the bicycle component 110 includes a first mounting portion 114 and a frame 132. The attachment structure 130 further includes a second attachment portion 116. The frame 132 includes a frame main body 134 and an attachment member 136 that is separate from the frame main body 134. The attachment structure 130 further includes a bolt 138 for attaching the attachment member 136 to the frame body 134. The attachment structure 130 further includes a first connecting member 140 for attaching the second attachment portion 116 to the frame 132. The attachment member 136 is a so-called bracket.

  The frame main body 134 includes the head tube 22A, the top tube 22B, the down tube 22C, the seat tube 22E, the seat stay 22F, the chain stay 22G, and the component attachment portion 142 shown in FIGS. 15 to 17, the seat tube 22E and the chain stay 22G are omitted. The component attachment portion 142 is connected to the lower end portion of the down tube 22C, the lower end portion of the seat tube 22E, and the front end portion of the chain stay 22G in the frame 132, respectively. The component attachment portion 142 is configured to be able to accommodate at least a part of the bicycle component 110. The component attachment portion 142 is preferably formed integrally with the down tube 22C, the seat tube 22E, and the chain stay 22G, but may be connected by welding, adhesion, or the like. The frame 132 is provided with a first opening 132 </ b> A for accommodating the bicycle component 110 and the battery 18 (see FIG. 2) in the frame 132. The first opening 132A is provided in a portion connected to the component attachment portion 142 and the component attachment portion 22D of the down tube 22C, and opens toward the lower side of the bicycle 10. The component attachment portion 142 includes a first side wall portion 144 and a second side wall portion 146 that are disposed in the left-right direction of the bicycle 10, and an upper wall portion 148 that is disposed above the bicycle 10. The first side wall portion 144 and the second side wall portion 146 are connected to the down tube 22C, the seat tube 22E, and the chain stay 22G. It is preferable that the first side wall portion 144 and the second side wall portion 146 are substantially formed in an arc shape or a fan shape when viewed from the axial direction of the crankshaft 32A. When the first sidewall 144 and the second sidewall 146 are viewed from the axial direction of the crankshaft 32 </ b> A, the opening of the second sidewall 146 is larger than the opening of the first sidewall 144. The upper wall portion 148 is connected to the upper end portions of the first side wall portion 144 and the second side wall portion 146, and is connected to the down tube 22C, the seat tube 22E, and the chain stay 22G. The opening of the first opening 132A is formed so as to extend to the rear of the bicycle 10 from the position where the crankshaft 32A is provided in the first side wall 144 and the second side wall 146 of the component mounting portion 142. A cover is preferably attached to the first opening 132A. The cover closes the opening of the first opening 132A. The cover may be detachably provided on the frame 132 or may be provided detachably on the bicycle component 110. The bicycle component 110 is inserted into the opening of the first opening 132 </ b> A from below and attached to the frame 132.

  As shown in FIGS. 15 and 18, the attachment member 136 is formed in an annular shape. The attachment member 136 includes an inner peripheral portion 136A and an outer peripheral portion 136B. The inner peripheral portion 136A is formed in an annular shape. The outer peripheral portion 136B protrudes outward in the radial direction from the inner peripheral portion 136A. A plurality of outer peripheral portions 136B are provided. The plurality of outer peripheral portions 136B are provided discontinuously in the circumferential direction. The plurality of outer peripheral portions 136B may be continuous in the circumferential direction. Each outer peripheral portion 136B includes a female screw portion 136C. In the present embodiment, the mounting member 136 is provided with three outer peripheral portions 136B. Each outer peripheral portion 136B is provided with a predetermined angle interval around the rotation axis of the crankshaft 32A. The predetermined angle is preferably 30 degrees or more and 80 degrees or less. As shown in FIGS. 17 and 20, the outer peripheral portion 136 </ b> B of the attachment member 136 is attached to the frame body 134. The bolt 138 passes through the hole 144 </ b> A of the frame body 134 from the side of the frame body 134 opposite to the housing 112. The attachment member 136 is attached to the first side wall portion 144 of the frame body 134 via the bolt 138. The outer peripheral portion 136 </ b> B is disposed between the frame main body 134 and the first side wall portion 144 of the housing 112. With the outer peripheral portion 136B of the mounting member 136 disposed on the surface of the first side wall portion 144 on the housing 112 side, the bolt 138 passes through the hole 144A of the first side wall portion 144 from the opposite side of the housing 112. It couple | bonds with the internal thread part 136C. In the axial direction C of the crankshaft 32A, the outer peripheral portion 136B of the attachment member 136 is preferably provided offset from the inner peripheral portion 136A. It is preferable that at least a part of the inner peripheral portion 136A of the attachment member 136 is provided at a position overlapping the first side wall portion 144 in the axial direction C of the crankshaft 32A. The first side wall portion 144 is sandwiched between the bolt head of the bolt 138 and the outer peripheral portion 136B. The hole 144A of the first side wall portion 144 is changed to a screw hole, the female screw portion 136C of the outer peripheral portion 136B is changed to a through hole, and the outer peripheral portion 136B is interposed between the bolt head of the bolt 138 and the first side wall portion 144. It is good also as composition which sandwiches. In this case, the outer peripheral portion 136B of the attachment member 136 may be disposed on the surface of the first side wall portion 144 on the housing 112 side, and disposed on the surface of the first side wall portion 144 on the opposite side to the housing 112. May be.

  As shown in FIGS. 19 and 20, the first attachment portion 114 includes a first portion 120 and a second portion 122. The first attachment portion 114 is provided in the housing 112 independently of the support portion 118. The first attachment portion 114 and the second attachment portion 116 are provided to be separated from each other in a predetermined direction. The predetermined direction is parallel to the axial direction C of the crankshaft 32A. The first attachment portion 114 is provided in the first housing 112X. The second attachment portion 116 is provided in the first housing 112X. The second attachment portion 116 may be provided in the second housing 112Y.

  The first portion 120 is coupled to the housing 112. The first attachment portion 114 includes an annular member 124. The annular member 124 is formed in an annular shape. The annular member 124 has the same structure as the first member 68 of the first embodiment. The annular member 124 includes an inner peripheral portion 124A and an outer peripheral portion 124B. The first portion 120 is provided in the inner peripheral portion 124A. The second portion 122 is provided on the outer peripheral portion 124B. The second portion 122 is configured to press the frame 132 in a direction away from the housing 112. Specifically, the second portion 122 presses the attachment member 136 in a direction away from the housing 112. The annular member 124 includes a first hole 124H extending in the first direction. The first hole 124H includes a through hole through which the crankshaft 32A passes. The first direction coincides with the axial direction C of the crankshaft 32A. The annular member 124 is configured to be supported by the housing 112 in a direction that intersects the first direction and the axial direction C of the crankshaft 32A. A part of the housing 112 is inserted into the first hole 124H of the annular member 124. The housing 112 includes an insertion portion 112 </ b> B that is inserted into the first hole 124 </ b> H of the annular member 124. The insertion portion 112 </ b> B is preferably included in the support portion 118. The annular member 124 has an inner peripheral portion 124 </ b> A supported by the insertion portion 112 </ b> B of the housing 112.

  The annular member 124 is configured to press the housing 112. Specifically, the annular member 124 is configured such that the inner peripheral portion 124 </ b> A presses the housing 112. The annular member 124 is configured such that the first end surface 124C in the first direction of the outer peripheral portion 124B presses the attachment member 136 of the frame 132 in a direction opposite to the direction in which the inner peripheral portion 124A presses the housing 112.

  The housing 112 has a first screw portion 112A. The first screw portion 112A of the housing 112 is formed so as to surround the outer peripheral surface of the crankshaft 32A around the rotation axis of the crankshaft 32A. The insertion portion 112B includes a portion of the housing 112 from which one end portion in the axial direction C of the crankshaft 32A protrudes. The insertion portion 112B is formed in an annular shape. The inner diameter of the insertion portion 112B in the direction perpendicular to the axial direction C of the crankshaft 32A is larger than the outer diameter of the crankshaft 32A in the direction perpendicular to the axial direction C of the crankshaft 32A. The inner peripheral portion of the insertion portion 112B is separated from the crankshaft 32A. 112 A of 1st screw parts are provided in the insertion part 112B. The first screw portion 112A is provided on the outer peripheral portion of the insertion portion 112B in a direction perpendicular to the axial direction C of the crankshaft 32A. The first portion 120 of the first attachment portion 114 has a second screw portion 120A coupled to the first screw portion 112A. The second screw portion 120A is provided with a female screw. The first screw portion 112A of the housing 112 is provided with a male screw coupled to the female screw of the second screw portion 120A.

  The second portion 122 of the first mounting portion 114 extends in a second direction that intersects the first direction in which the second screw portion 120A moves while being coupled to the first screw portion 112A. The first direction is a direction parallel to the axial direction of the crankshaft 32A. An inner peripheral portion 136 </ b> A of the attachment member 136 is in contact with the first attachment portion 114.

  As shown in FIG. 15, the first attachment portion 114 further includes a tool engagement portion 126 that can engage a tool. The tool engaging portion 126 is preferably formed on at least one of the inner peripheral portion 124A and the outer peripheral portion 124B of the annular member 124. In the present embodiment, the tool engaging portion 126 is formed on the inner peripheral portion 124 </ b> A of the annular member 124. The tool engaging portion 126 includes a convex portion that protrudes in the radial direction with respect to the crankshaft 32A and a concave portion that is recessed. It is preferable that the convex portions and the concave portions are alternately arranged at a predetermined interval in the circumferential direction around the crankshaft 32A.

  The second attachment portion 116 includes a first through hole 116 </ b> A and a second through hole 116 </ b> B formed in the housing 112, and a first connecting member 140. The second attachment portion 116 includes a plurality of convex portions 113 protruding from the outer peripheral portion around the crankshaft 32A of the first housing 112X. The plurality of convex portions 113 include a first convex portion 113A in which the first through hole 116A is formed and a second convex portion 113B in which the second through hole 116B is formed. It is preferable that a plurality of first convex portions 113A are provided. The first through hole 116A and the second through hole 116B extend in the first direction. The inner diameter of the second through hole 116B is preferably larger than the inner diameter of the first through hole 116A. In the present embodiment, two first convex portions 113A are provided, and one second convex portion 113B is provided. When viewed from the axial direction C of the crankshaft 32A, a straight line connecting the center of the first through hole 116A and the center of the second through hole 116B adjacent to each other around the crankshaft 32A, the center of the first through hole 116A, and the first It is preferable that the rotation axis of the crankshaft 32A is disposed in a first range surrounded by a straight line connecting the center of the through hole 116A. Preferably, the crankshaft 32A is disposed in the first range. Three or more first through holes 116A may be formed, and two or more second through holes 116B may be formed. One of the first through holes 116A is preferably provided at a position where the crankshaft 32A is sandwiched between the motor 48 and the crankshaft 32A when viewed from the axial direction of the crankshaft 32A. Another one of the first through holes 116A and the second through hole 116B are preferably provided at a position where the first housing 112X and the third housing 112Z are connected. The other one of the first through holes 116A and the second through hole 116B are respectively provided at both ends in the width direction of the third housing 112Z around the crankshaft 32A when viewed from the axial direction of the crankshaft 32A. Is preferred. 116A of 1st through-holes and 116B of 2nd through-holes are not formed in the 1st housing 112X in the 1st housing part 112X and the 1st convex part 113A and the 2nd convex part 113B. A second through hole 116B may be provided. The first housing 112X may be provided with only the first protrusion 113A, not both the first protrusion 113A and the second protrusion 113B. In this case, the housing 112 is provided with only the first through hole 116A, and the structure in which the cylindrical member 150 of the second through hole 116B and the bolt are connected is such that the bolt inserted into the first through hole 116A is the second side wall. It replaces with the structure connected with the thread part 146A of the part 146.

  The second attachment portion 116 has a plurality of attachment surfaces 117. The plurality of attachment surfaces 117 include a first attachment surface 117A and a second attachment surface 117B. 116 A of 1st through-holes open in 117 A of 1st attachment surfaces. A second through hole 116B is opened in the second mounting surface 117B. 117 A of 1st attachment surfaces are formed in the 1st convex part 113A. The second mounting surface 117B is formed on the second convex portion 113B. The first mounting surface 117A and the second mounting surface 117B extend in a direction perpendicular to the rotation axis of the crankshaft 32A. The first mounting surface 117A and the second mounting surface 117B are arranged offset in the axial direction C of the crankshaft 32A. The first mounting surface 117A is preferably disposed closer to the first mounting portion 114 in the axial direction C of the crankshaft 32A than the second mounting surface 117B. The second side wall portion 146 includes a first frame attachment portion 147A corresponding to the first attachment surface 117A and a second frame attachment portion 147B corresponding to the second attachment surface 117B. The first frame mounting portion 147A and the second frame mounting portion 147B are arranged offset in the axial direction C of the crankshaft 32A. The first frame attachment portion 147A is preferably disposed closer to the first attachment portion 114 in the axial direction C of the crankshaft 32A than the second frame attachment portion 147B. 116A of 1st through-holes and 116B of 2nd through-holes are provided so that it may not overlap with the line segment which connects the rotating shaft center of the crankshaft 32A, and the rotating shaft center of the rear-wheel 30 seeing from the axial direction C of the crankshaft 32A. It is preferred that 116A of 1st through-holes and 116B of 2nd through-holes preferably may be arrange | positioned offset from the connection part of the seat tube 22E and the upper wall part 148, and the connection part of the chain stay 22G and the upper wall part 148. Good.

  As shown in FIG. 21, the cylindrical member 150 is disposed in the second through hole 116B. It is preferable to press-fit into the cylindrical member 150 and the second through hole 116B of the second convex portion 113B. The cylindrical member 150 has a flange portion 150B at one end in the axial direction. The outer diameter of the flange portion 150B is formed to be larger than the inner diameter of the second through hole 116B. The flange portion 150B is disposed between the second convex portion 113B and the frame body 134. The cylindrical member 150 is configured so that the position of the second through hole 116B in the extending direction of the second through hole 116B can be adjusted. An internal thread portion is formed on the inner peripheral portion 150 </ b> A of the cylindrical member 150.

  As shown in FIGS. 19 and 21, the first connecting member 140 includes a male screw 140A. The first connecting member 140 is inserted into each of the first through hole 116A and the second through hole 116B. The first connecting member 140 inserted into the first through hole 116A passes through the first through hole 116A and is connected to the screw portion 146A of the second side wall portion 146. The frame 132 has a threaded portion 146A into which the first connecting member 140 can be inserted at a position corresponding to the first through hole 116A. A female screw is formed in the screw portion 146A. The first connecting member 140 includes a bolt. The housing 112 is sandwiched between the bolt head of the first connecting member 140 inserted into the first through hole 116 </ b> A and the second side wall portion 146 of the frame 132.

  The first connecting member 140 inserted into the second through hole 116 </ b> B is connected to the female thread portion of the inner peripheral portion 150 </ b> A of the cylindrical member 150. The second side wall portion 146 of the frame 132 is sandwiched between the bolt head of the first connecting member 140 inserted into the second through hole 116 </ b> B and the housing 112. The frame 132 has a through hole into which the first connecting member 140 can be inserted at a position corresponding to the second through hole 116B. When attaching the bicycle component 110 to the frame 132, the first connecting member 140 is inserted into the first through hole 116 </ b> A and connected to the screw portion 146 </ b> A of the second side wall portion 146 to fix the frame 132 and the housing 112. To do. Thereafter, another first connecting member 140 is inserted into the through hole of the frame 132 and connected to the second through hole 116B. When there is a gap between the flange portion of the cylindrical member 150 and the frame 132, the cylindrical member 150 is moved in a direction approaching the frame 132 by connecting the first connecting member 140, and the flange portion 150B and the frame 132 can be brought into contact.

  As shown in FIGS. 19 and 20, the first attachment portion 114 is configured to apply a force in a direction in which the housing 112 and the frame 132 are separated from each other to the housing 112 and the frame 132. The first attachment portion 114 is configured to apply a force in a direction in which the housing 112 and the frame 132 are separated from each other in the axial direction C of the crankshaft 32A to the housing 112 and the frame 132. Specifically, in the first portion 120, the second screw portion 120A is screwed into the first screw portion 112A, so that the axial force of the annular member 124 causes the force in the direction A1 toward the second attachment portion 116 to the housing 112. Is granted. The second portion 122 applies a force in the direction A2 opposite to the direction A1 to the frame 132 by the end surface 124C of the annular member 124.

  As shown in FIGS. 19 and 21, the second mounting portion 116 is configured to apply a force in a direction in which the housing 112 and the frame 132 approach each other to the housing 112 and the frame 132. The second attachment portion 116 is configured to apply to the housing 112 and the frame 132 a force in a direction in which the housing 112 and the frame 132 approach each other in the axial direction C of the crankshaft 32A. Specifically, the first connecting member 140 inserted into the second through-hole 116 </ b> B is attached to the housing 112 by the axial force of the first connecting member 140 on the first side wall 144 side of the second side wall 146 of the frame 132. A force in the direction B1 toward the surface is applied. The first connecting member 140 disposed in the first through hole 116 </ b> A applies a force in the direction B <b> 2 from the second side wall portion 146 of the frame 132 toward the first side wall portion 144 to the housing 112 by the axial force of the first connecting member 140. To do. The direction B1 and the direction B2 are directions away from each other.

  A method for attaching the bicycle component 110 to the frame 132 will be described. The method of attaching the bicycle component 110 to the frame 132 includes a first step, a second step, a third step, and a fourth step.

  In the first step, the operator attaches the first attachment portion 114 to the housing 112 and supports the attachment member 136 on the first attachment portion 114, so that the component attachment portion 142 can be moved from the first opening 132 </ b> A of the frame 132. The bicycle component 110 is inserted into the housing space from below.

In the second step, the worker attaches the housing 112 to the frame 132 by the second attachment portion 116.
In the third step, the operator fixes the attachment member 136 to the frame main body 134 with bolts 138.

  In the fourth step, the operator engages the tool with the tool engagement portion 126 of the first attachment portion 114, and the first screw portion 120A of the first attachment portion 114 is removed from the first screw portion 112A in the first direction. The attachment portion 114 is rotated and the frame 132 is pressed by the end surface 124 </ b> C of the annular member 124 of the first attachment portion 114. The third step may be performed before the first step.

(Fifth embodiment)
With reference to FIGS. 22-24, the bicycle component 110 and the attachment structure 160 of the bicycle component 110 of 5th Embodiment are demonstrated. The bicycle component 110 according to the fourth embodiment is the same as the bicycle component 110 according to the fourth embodiment except that the configuration of the second mounting portion 164 and the mounting structure 160 are different, and thus the configuration common to the fourth embodiment. Are given the same reference numerals as in the fourth embodiment, and redundant description is omitted.

  As shown in FIGS. 22 to 24, the bicycle component 110 includes a housing 112 and a first attachment portion 114 for attaching the housing 112 to the bicycle 10. The bicycle component 110 further includes a second mounting portion 164 for mounting the housing 112 to the frame 132 of the bicycle 10.

  The mounting structure 160 for the bicycle component 110 includes a first mounting portion 114 and a frame 132. The attachment structure 160 further includes a second attachment portion 164. The frame 132 includes a frame main body 134 and an attachment member 166 separate from the frame main body 134. The attachment structure 160 further includes a bolt 168 for attaching the attachment member 166 to the frame body 134. Mounting structure 160 further includes a nut 170 coupled to bolt 168. In FIG. 22, the seat tube 22E and the chain stay 22G are omitted.

  The attachment member 166 is formed in an annular shape. The attachment member 166 includes an inner peripheral portion 166A and an outer peripheral portion 166B. The inner peripheral portion 166A is formed in an annular shape. The inner peripheral portion 166A of the mounting member 166 has the same shape as the inner peripheral portion of the mounting member 136. The outer peripheral portion 166B protrudes outward in the radial direction from the inner peripheral portion 166A. A plurality of outer peripheral portions 166B are provided. The plurality of outer peripheral portions 166B are provided discontinuously in the circumferential direction. The plurality of outer peripheral portions 166B may be continuous in the circumferential direction. Each outer peripheral portion 166B includes a through hole 166C. An outer peripheral portion 166 </ b> B of the attachment member 166 is attached to the frame main body 134.

  The second attachment portion 164 includes a first through hole 116 </ b> A, a second through hole 116 </ b> B, a bolt 168, and a nut 170 formed in the housing 112. A cylindrical member 150 is disposed in the second through hole 116B. Bolts 168 are inserted into the first through hole 116A and the second through hole 116B, respectively. The internal thread portion 150 </ b> A of the cylindrical member 150 is coupled to the bolt 168.

  The second attachment portion 164 has a function of attaching the attachment member 166 to the frame main body 134 while attaching the housing 112 to the frame 132 by the bolt 168 and the nut 170.

  The frame main body 134 is formed with a first frame through hole 134A and a second frame through hole 134B that penetrate the frame main body 134 in the axial direction C of the crankshaft 32A. As shown in FIG. 23, in a state where the bicycle component 110 is attached to the frame main body 134, the first through hole 116A is arranged at a position connected to the first frame through hole 134A. The first frame through hole 134 </ b> A is formed in a portion of the frame body 134 where the first side wall portion 144 and the second side wall portion 146 are connected by the upper wall portion 148, and the first side wall portion 144 and the upper wall portion 148 are formed. And through the second side wall portion 146 in the first direction. The bolt 168 inserted into the first through-hole 116A penetrates the first through-hole 116A, the first frame through-hole 134A, and the through-hole 166C of the attachment member 166 from the second side wall portion 146 side. A nut 170 is coupled to the male screw at the tip of the bolt 168 from the side opposite to the frame main body 134. The bolt 168 disposed in the first through hole 116A penetrates the through hole 166C, the first frame through hole 134A, and the first through hole 116A of the mounting member 166 from the mounting member 166 side, and is on the second housing 112Y side. The nut 170 may be coupled to the external thread of the tip 168A of the bolt 168. The bolt 168 and the nut 170 disposed in the first through hole 116 </ b> A sandwich the housing 112, the frame main body 134, and the attachment member 166 between the bolt head and the nut 170.

  As shown in FIG. 24, in a state where the bicycle component 110 is attached to the frame main body 134, the second through hole 116B is arranged at a position connected to the second frame through hole 134B. The second frame through hole 134B is formed in a portion where the first side wall portion 144 and the second side wall portion 146 are not connected by the upper wall portion 148, and the first portion 134C penetrating the first side wall portion 144 in the first direction. And a second portion 134D penetrating the second side wall portion 146 in the first direction. The bolts 168 inserted into the second through holes 116B are, from the second side wall 146 side, the second part 134D of the second frame through hole 134B, the second through hole 116B, and the first part of the second frame through hole 134B. The nut 170 is coupled to the male thread at the tip of the bolt 168 from the opposite side of the frame member 134 of the mounting member 166 through the through hole 166C of the mounting member 166. The bolt 168 and the nut 170 inserted into the second through hole 116B sandwich the second side wall portion 146 of the frame body 134 between the bolt head and the flange portion 150B of the tubular member 150, and the nut 170 and the frame body. The attachment member 166 is sandwiched between the first side wall portion 144 of the 134.

  The second mounting portion 164 is configured to apply a force in a direction in which the housing 112 and the frame 132 approach each other to the housing 112 and the frame 132. The second mounting portion 164 is configured to apply to the housing 112 and the frame 132 a force in a direction in which the housing 112 and the frame 132 approach each other in the axial direction C of the crankshaft 32A. Specifically, the bolt 168 inserted into the second through-hole 116 </ b> B is directed in the direction B <b> 1 toward the surface on the first side wall 144 side of the second side wall 146 of the frame 132 to the housing 112 by the axial force of the bolt 168. Giving the power of.

  A method for attaching the bicycle component 110 to the frame 132 will be described. The method of attaching the bicycle component 110 to the frame 132 includes a first step, a second step, a third step, and a fourth step.

  In the first step, the operator attaches the first attachment portion 114 to the housing 112 and supports the attachment member 136 on the first attachment portion 114, so that the component attachment portion 142 can be moved from the first opening 132 </ b> A of the frame 132. The bicycle component 110 is inserted into the housing space from below.

  In the second step, the operator inserts each bolt 168 into the first through hole 116 </ b> A of the housing 112, the first frame through hole 134 </ b> A, and the through hole 166 </ b> C of the mounting member 166, and connects the nut 170 to the bolt 168. Then, the housing 112 and the attachment member 166 are fixed to the frame main body 134. Further, the bolt 168 is inserted into the second frame through hole 134B, the second through hole 116B, and the through hole 166C of the attachment member 166, and the flange portion 150B of the cylindrical member 150 is brought into contact with the second side wall portion 146, and then the nut. 170 is connected to the bolt 168 to fix the mounting member 166 to the frame main body 134.

  In the third step, the operator engages the tool with the tool engagement portion 126 of the first attachment portion 114, and the first screw portion 120A of the first attachment portion 114 is removed from the first screw portion 112A in the first direction. The attachment portion 114 is rotated, and the attachment member 166 is pressed by the end surface 124 </ b> C of the annular member 124 of the first attachment portion 114.

(Modification)
The above description of each embodiment is an example of the form that the bicycle component according to the present invention can take, and is not intended to limit the form. The bicycle component according to the present invention can take a form in which, for example, the modifications of the above-described embodiments described below and at least two modifications not inconsistent with each other are combined. In the following modified examples, the same reference numerals as those of the respective embodiments are assigned to portions common to those of the respective embodiments, and the description thereof is omitted.

  -The 2nd attachment part 46 of 1st and 2nd embodiment can also be changed into the 2nd attachment part 104 shown in FIG. The second attachment portion 104 includes a plurality of screw holes 106 and a plurality of first connecting members 108. The screw hole 106 is formed in the housing 42. The first connecting member 108 is a bolt. The first connecting member 74 passes through the frame 22 and is connected to the screw hole 106. The first connecting member 108 includes a male screw for coupling to the female screw of the screw hole 106. The plurality of screw holes 106 and the plurality of first connecting members 108 are provided at intervals around the crankshaft 32A.

  In the first embodiment, instead of the first opening 23A, as shown in FIGS. 26 and 27, the frame 22 may be provided with a first opening 23G that opens toward the lower side of the bicycle 10. The first opening 23G is provided below the component attachment portion 22D. The bicycle component 40 is attached to the frame 22 by being inserted into the opening of the first opening 23G from below. The opening of the first opening 23G is formed so as to extend rearward from the position where the crankshaft 32A is provided in the side wall portions 23D and 23E of the component mounting portion 22D. A cover (not shown) is preferably attached to the first opening 23G.

  As shown in FIG. 28, the first connecting member 74 may be changed to the first connecting member 108 in the modified examples of FIGS. 26 and 27. In the modification shown in FIG. 16, the first mounting portion 44 can be changed to the same configuration as the second mounting portion 46.

-In the modification of 1st and 2nd embodiment and 1st Embodiment shown to FIG. 26 and FIG. 27, the 2nd attachment part 46 can also be changed into the structure similar to the 1st attachment part 44. FIG.
-In the modification of 1st and 2nd embodiment and 1st Embodiment shown to FIG. 26 and FIG. 27, the 1st attaching part 44 can also be changed into the structure similar to the 2nd attaching part 46. FIG.
-In the modification of 1st and 2nd embodiment and 1st Embodiment shown to FIG. 26 and FIG. 27, the 1st attaching part 44 can also be changed into the 2nd attaching part 104 shown in FIG.

  -In 1st, 2nd embodiment and its modification, the 1st connection member 74,95,108 can also be formed in a discontinuous cyclic | annular form. The first connecting members 74, 95, and 108 may be formed in a shape such as the letter C, for example.

-In 1st-3rd embodiment and its modification, at least one of the 1st members 68 and 102 and the 2nd member 70 can also be formed in a discontinuous ring. The first members 68 and 102 and the second member 70 may be formed in a shape such as the letter C, for example.
-You may abbreviate | omit the convex part 70F from the 2nd member 70 in 1st-3rd embodiment and its modification. In this case, the recess 22X can be omitted from the frame 22.

  The housings 42, 94, and 112 of the bicycle components 40, 92, and 110 may be provided with a transmission instead of the motor 48 or in addition to the motor 48. In this case, the housings 42 and 94 may accommodate at least a part of the transmission. The transmission shifts the rotation input to the crankshaft 32 </ b> A and outputs it to the front rotating body 36.

  -In each embodiment and modification, you may change the position of the 1st attaching part 44,96,114 and the 2nd attaching part 46,98,104,116,164. For example, the first mounting portions 44, 96, 114 are provided on the right side of the housings 42, 94, 112, and the second mounting portions 46, 98, 104, 116, 164 are on the left side of the housings 42, 94, 112. Provided on the surface side.

  -In each embodiment and modification, you may provide the structure similar to the 1st attaching parts 44, 96, 114 also on the 2nd side part 42Y, 94Y side. In this case, you may abbreviate | omit the 2nd attaching parts 98,104,116,164.

-In 4th and 5th embodiment and its modification, you may change the 1st attaching part 114 to the 1st attaching part 44 of 1st Embodiment.
-In 5th Embodiment and its modification, it is good also as a structure by which only the 1st through-hole 116A is provided in the housing 112 similarly to 4th Embodiment, without providing the 2nd through-hole 116B.

In the fourth and fifth embodiments and modifications thereof, the first through hole 116A and the second through hole 116B may be formed in the second housing 112Y.
-In 4th and 5th embodiment and its modification, the cylindrical member 150 may be abbreviate | omitted. In this case, an internal thread coupled to the first connecting member 140 may be formed on the inner peripheral portion of the housing 112 that forms the second through hole 116B.

  DESCRIPTION OF SYMBOLS 10 ... Bicycle, 22 ... Frame, 32A ... Crankshaft, 40, 92, 110 ... Bicycle component, 42, 94, 112 ... Housing, 42A, 94B ... Insertion part, 42B, 94C, 102 ... Screw hole, 44, 96 , 114 ... 1st attaching part, 48 ... Motor, 46, 98, 104, 116, 164 ... 2nd attaching part, 54 ... Supporting part, 68, 102 ... 1st member, 68A ... 1st hole, 68B ... Male screw, 68C ... first end face, 68D ... inner peripheral part, 68F ... outer peripheral part, 70 ... second member, 70A ... hole, 70B ... internal thread, 70E ... frame engaging part, 72 ... tool engaging part, 74, 95, 108 ... 1st connection member (connection member), 94D ... 2nd hole, 112A ... 1st thread part, 112 ... Outer peripheral surface, 120 ... 1st part, 120A ... 2nd thread part, 122 ... 2nd part, 124 ... Annular Member 124 ... inner peripheral part, 124B ... outer peripheral part, 126 ... tool engaging part, 130, 160 ... mounting structure, 132 ... frame, 134 ... frame main body, 136, 166 ... mounting member, 136A, 166A ... inner peripheral part, 136B, 166B ... outer periphery, 138, 170 ... bolts.

Claims (25)

A housing that supports the crankshaft of the bicycle;
A first attachment portion for attaching the housing to the bicycle frame,
The first mounting portion is a bicycle component configured to apply a force in a direction in which the housing and the frame are separated from each other to the housing and the frame. The first mounting portion is
A first member formed with a male screw and configured to press the housing;
The bicycle component according to claim 1, further comprising: a second member formed with a female screw coupled to the male screw of the first member and configured to press the frame.   The bicycle component according to claim 2, wherein the first member is configured such that a first end surface in a first direction that moves in combination with the second member presses the housing.   The bicycle component according to claim 3, wherein the first member is configured to support the housing in a direction intersecting the first direction. The first member includes a first hole extending in the first direction,
The bicycle component according to claim 3 or 4, wherein the housing includes an insertion portion that is inserted into the first hole of the first member. The housing includes a second hole extending in the first direction;
The bicycle component according to claim 3 or 4, wherein an end portion of the first member in the first direction is inserted into the second hole.   The bicycle component according to any one of claims 2 to 6, wherein at least a part of the second member is provided between the housing and the frame.   The bicycle component according to any one of claims 2 to 7, wherein at least a part of the second member is provided between the first member and the frame.   The bicycle component according to any one of claims 2 to 8, wherein the second member is configured to contact a part of the frame in a direction intersecting the first direction.   The bicycle component according to any one of claims 2 to 9, wherein at least one of the first member and the second member further includes a tool engaging portion capable of engaging a tool.   The bicycle component according to claim 10, wherein the tool engaging portion is formed on at least one of an inner peripheral portion and an outer peripheral portion of the first member. The first mounting portion is
A first portion coupled to the housing;
The bicycle component according to claim 1, comprising: a second portion configured to press the frame in a direction away from the housing. The housing has a first threaded portion;
The first portion of the first mounting portion has a second screw portion coupled to the first screw portion,
The bicycle component according to claim 12, wherein the second portion of the first attachment portion extends in a second direction that intersects a first direction in which the second screw portion moves in connection with the first screw portion. . The second screw portion is provided with a female screw,
The bicycle component according to claim 13, wherein the first screw portion of the housing is provided with a male screw coupled to the female screw of the second screw portion.   The bicycle component according to claim 13 or 14, wherein the first screw portion of the housing is formed so as to surround an outer peripheral surface of the crankshaft around a rotation axis of the crankshaft. The first attachment portion includes an annular member including an inner peripheral portion and an outer peripheral portion,
The first portion is provided on the inner peripheral portion,
The bicycle component according to any one of claims 13 to 15, wherein the second portion is provided on the outer peripheral portion.   The bicycle component according to any one of claims 13 to 16, wherein the first attachment portion further includes a tool engagement portion capable of engaging a tool. A second attachment portion for attaching the housing to the bicycle frame;
The bicycle component according to any one of claims 1 to 17, wherein the first attachment portion and the second attachment portion are provided to be separated from each other in a predetermined direction. The second mounting portion is
A screw hole formed in the housing;
The bicycle component according to claim 18, comprising a connecting member that penetrates the frame and is connected to the screw hole.   20. The bicycle component according to any one of claims 1 to 19, wherein the housing houses at least a portion of a motor that assists in propulsion of the bicycle.   21. The bicycle component according to claim 1, wherein at least a part of the housing is configured to be accommodated in the frame. The first mounting portion of the bicycle component according to any one of claims 1 to 21,
A mounting structure for a bicycle component, including the frame. The first mounting portion of the bicycle component according to any one of claims 12 to 17,
Including the frame,
The frame includes a frame main body and a mounting member separate from the frame main body,
The bicycle component mounting structure, wherein the second portion presses the mounting member in a direction away from the housing. The attachment member is formed in an annular shape and includes an inner peripheral portion and an outer peripheral portion,
The inner peripheral portion is in contact with the first mounting portion,
24. The bicycle component mounting structure according to claim 23, wherein the outer peripheral portion is mounted on the frame body.   The bicycle component mounting structure according to claim 23 or 24, further comprising a bolt for mounting the mounting member to the frame body.