Assembly for human-powered vehicle

Abstract

The invention provides an assembly for a human-powered vehicle, which can appropriately apply propulsive force to the human-powered vehicle. An assembly for a human-powered vehicle is provided with: a crankshaft support part for supporting a crankshaft to which a human-powered driving force is input; a transmission that can be changed to a plurality of different gear ratios; a power transmission unit that connects the crank shaft and the transmission; an output rotating shaft that is disposed at a distance from the crankshaft and that outputs the driving force input from the transmission; and a drive motor configured to impart a propulsive force to the human-powered vehicle, the power transmission unit being configured to change a ratio of a rotational speed of a transmission input rotating body of the transmission to a rotational speed of the crankshaft to a predetermined ratio, the drive motor being configured to transmit the human-powered driving force to the crankshaft on a transmission path of the human-powered driving force, and the drive motor being configured to impart the propulsive force to the human-powered vehicle. And a transmission unit that transmits a motor driving force, which is a driving force output from the drive motor, to a resultant force unit provided between the power transmission unit and the transmission.

Description

Technical Field

[0001] The present disclosure relates to an assembly for a human-powered vehicle. Background Art

[0002] For example, Patent Document 1 discloses an assembly including a transmission and an assist motor.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent document 1: Japanese Patent Application Laid-Open No. 10-194186. Summary of the invention

[0006] Problems to be solved by the invention

[0007] One of the objects of the present disclosure is to provide a component for a human-powered vehicle capable of appropriately imparting a propulsion force to the human-powered vehicle.

[0008] Means used to solve problems

[0009] The component according to the first aspect of the present disclosure is a component for a human-powered vehicle, which comprises: a crankshaft support portion, which supports a crankshaft for inputting human-powered driving force; a transmission, which can be changed to a plurality of different speed ratios; a power transmission portion, which connects the crankshaft to the transmission; an output rotating shaft, which is arranged at a distance from the crankshaft and outputs the driving force input from the transmission; and a drive motor, which is configured to impart propulsion force to the human-powered vehicle, the power transmission portion being configured to change the ratio of the rotational speed of the transmission input rotating body to the rotational speed of the crankshaft to a prescribed ratio, and the drive motor being configured to transmit the driving force output from the drive motor, i.e., the motor driving force, to a combined force portion arranged between the power transmission portion and the transmission on a transmission path of the human-powered driving force.

[0010] According to the component of the first aspect, after the ratio of the rotation speed of the transmission input rotating body to the rotation speed of the crankshaft is changed to a predetermined ratio through the power transmission unit and before the transmission is shifted, the human driving force and the motor driving force are combined. Therefore, the predetermined ratio suitable for the performance of the drive motor can be set, so that the drive motor can appropriately impart propulsion force to the human-powered vehicle.

[0011] In the assembly according to the second aspect of the first aspect of the present disclosure, the prescribed ratio is greater than 1.

[0012] According to the second aspect of the assembly, since the power transmission unit increases the speed of the human driving force, the drive motor can apply the motor driving force to the torque-reduced combined force unit of the human driving force. Therefore, since a drive motor with a smaller motor driving force can be used, the enlargement of the drive motor can be suppressed.

[0013] In the third aspect of the component according to the first or second aspect of the present disclosure, the power transmission unit changes the rotation speed of the crankshaft over two or more stages and changes the ratio of the rotation speed of the transmission input rotating body to the rotation speed of the crankshaft to the prescribed ratio.

[0014] According to the assembly of the third aspect, the power transmission portion can appropriately achieve a prescribed ratio.

[0015] In the fourth aspect of the assembly according to any one of the first to third aspects of the present disclosure, a shaft member is further provided, which is arranged at a distance from the crankshaft, and the shaft member is arranged coaxially with the output rotating shaft.

[0016] According to the assembly of the fourth aspect, the driving force can be output from the output rotating shaft coaxial with the shaft member different from the crankshaft.

[0017] In the assembly according to the fifth aspect of the fourth aspect of the present disclosure, the shaft member and the output rotation shaft extend in parallel with the crankshaft.

[0018] According to the assembly of the fifth aspect, the driving force output from the crankshaft can be appropriately transmitted to the shaft member.

[0019] In the assembly of the sixth aspect according to the fifth aspect of the present disclosure, the drive motor has a drive motor rotation shaft extending in parallel with the crank shaft, the shaft member, and the output rotation shaft.

[0020] According to the assembly of the sixth aspect, since the drive motor extends in parallel with the crankshaft, it is easy to downsize the assembly.

[0021] In the assembly according to the seventh aspect of the sixth aspect of the present disclosure, the driving motor rotation shaft is coaxially arranged with the crank shaft.

[0022] According to the assembly of the seventh aspect, since the drive motor rotating shaft and the crankshaft can be arranged coaxially, it is possible to suppress an increase in the size of the assembly in the radial direction of the crankshaft.

[0023] In the assembly of the eighth aspect according to the sixth aspect or the seventh aspect of the present disclosure, the driving motor rotating shaft is arranged to be spaced apart from the shaft member and the output rotating shaft.

[0024] According to the assembly of the eighth aspect, a speed reducer or the like can be arranged between the driving motor rotating shaft and the shaft member and the output rotating shaft.

[0025] In the assembly according to the seventh aspect or the eighth aspect of the present disclosure, the drive motor is configured to overlap with at least a portion of the transmission when viewed from a direction orthogonal to the crankshaft and the shaft member.

[0026] According to the assembly of the ninth aspect, since the drive motor is arranged so as to overlap with at least a portion of the transmission when viewed from the orthogonal direction, it is possible to suppress an increase in size of the assembly in the axial direction of the crankshaft.

[0027] In the tenth aspect of the component according to any one of the fourth to ninth aspects of the present disclosure, the diameter of the output rotating shaft, i.e. the output rotating shaft diameter, is larger than the diameter of the shaft component, i.e. the shaft component diameter, and the diameter of the crankshaft, i.e. the crankshaft diameter, is larger than the output rotating shaft diameter.

[0028] According to the tenth aspect of the assembly, the output rotating shaft has a larger diameter than the shaft member, so the output rotating shaft can be arranged around the shaft member. According to the tenth aspect of the assembly, the output rotating shaft has a smaller diameter than the crankshaft, making it easy to miniaturize the assembly.

[0029] In the component of the eleventh aspect according to any one of the fourth to tenth aspects of the present disclosure, the power transmission part includes at least one power transmission planetary gear unit, and the at least one power transmission planetary gear unit is configured to be rotatable around the rotation center axis of the shaft member.

[0030] According to the assembly of the eleventh aspect, the space around the crankshaft can be effectively utilized.

[0031] In the assembly according to the twelfth aspect of the eleventh aspect of the present disclosure, a torque sensor is further provided, and the at least one power transmission planetary gear unit includes a power transmission gear carrier, and the torque sensor is arranged on the power transmission gear carrier.

[0032] According to the assembly of the twelfth aspect, the torque sensor can appropriately detect the torque.

[0033] In the component of the thirteenth aspect according to any one of the first aspect to the twelfth aspect of the present disclosure, there is also a shell, which can be installed on the frame of the human-powered vehicle, and the crankshaft, the transmission, the power transmission part, and the drive motor are arranged on the shell. When the shell is installed on the frame, the driving force output from the transmission is configured to be transmitted to the driving wheel of the human-powered vehicle via a transmission component.

[0034] According to the assembly of the thirteenth aspect, the drive motor can be protected by the case.

[0035] Effects of the Invention

[0036] The assembly for a human-powered vehicle of the present disclosure can appropriately impart propulsion force to the human-powered vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is a side view of an assembly for a human-powered vehicle including a transmission for a human-powered vehicle according to the first embodiment;

[0038] Figure 2 yes Figure 1 A perspective view of components for a human-powered vehicle;

[0039] Figure 3 When the housing is omitted, the Figure 1 A side view of an assembly for a human-powered vehicle;

[0040] Figure 4 When the housing is omitted, the Figure 1 A side view of an assembly for a human-powered vehicle;

[0041] Figure 5 When viewed from a direction perpendicular to the crankshaft and the shaft member Figure 1 A top view of an assembly for a human-powered vehicle;

[0042] Figure 6 Observed from the axial direction Figure 1 A side view of an assembly for a human-powered vehicle;

[0043] Figure 7 is along Figure 3 A cross-sectional view of a component for a human-powered vehicle taken along line D7-D7;

[0044] Figure 8 Yes Figure 7 A cross-sectional view showing an enlarged portion of an assembly for a human-powered vehicle;

[0045] Fig. 9 Yes Figure 7 A cross-sectional view showing an enlarged portion of a transmission for a human-powered vehicle;

[0046] Fig.10 is along Figure 3 A cross-sectional view of a transmission for a human-powered vehicle taken along line D10-D10;

[0047] Fig.11 Yes means Figure 1 A framework diagram of a transmission path of driving force of components for a human-driven vehicle;

[0048] Fig.12 Yes means Figure 7 A perspective view of a rotation control unit of a transmission for a human-powered vehicle;

[0049] Fig.13 Yes means Fig.12 A perspective view of a portion of a rotation control unit of a transmission for a human-powered vehicle;

[0050] Fig.14 Yes means Fig.10 A cross-sectional view showing a case where the rotation state of the speed change ring gear of the first speed change portion of the transmission for a human-powered vehicle is a restricted state;

[0051] Fig.15 Yes means Fig.10 A cross-sectional view showing a case where the rotation state of the speed change ring gear of the first speed change portion of the transmission for a human-powered vehicle is in a permitted state;

[0052] Fig.16 Yes means Fig.10 A cross-sectional view showing a case where the rotation state of the speed change ring gear of the second speed change portion of the transmission for a human-powered vehicle is a restricted state;

[0053] Fig.17 Yes means Fig.10 A cross-sectional view showing a case where the rotation state of the speed change ring gear of the second speed change portion of the transmission for a human-powered vehicle is in an allowed state;

[0054] Fig.18 yes Fig.13 A side view of a second rotation transmission portion of a transmission for a human-powered vehicle;

[0055] Fig.19 Yes means Figure 7 A graph showing a corresponding relationship between a rotation angle of a drive shaft of a transmission for a human-powered vehicle and a rotation state of a transmission ring gear;

[0056] Fig. 20 is a side view of the assembly for the human-powered vehicle of the second embodiment observed from the first direction in a state where the housing is omitted;

[0057] Fig.21 is a side view of the assembly for the human-powered vehicle of the second embodiment observed from the second direction in a state where the housing is omitted;

[0058] Fig. 22 is a schematic diagram showing a transmission path of driving force of a component for a human-powered vehicle according to a second embodiment;

[0059] Fig.231 is a schematic diagram showing a cross section of a drive motor and a transmission of an assembly for a human-powered vehicle according to a second embodiment when viewed from a direction perpendicular to the crankshaft and the shaft member;

[0060] Fig.24 It is a schematic diagram showing a cable and a cable operating device of an assembly for a human-powered vehicle according to a modified example. DETAILED DESCRIPTION

[0061] <First embodiment>

[0062] Reference Figures 1 to 19 Next, the transmission 24 for a human-powered vehicle and the assembly 20 for a human-powered vehicle according to the first embodiment will be described.

[0063] A human-powered vehicle is a vehicle having at least one wheel and capable of being driven at least by human-powered driving force. For example, human-powered vehicles include various bicycles such as mountain bikes, road bikes, city bikes, cargo bikes, push bikes, and recumbent bikes. The number of wheels a human-powered vehicle has is not limited. Human-powered vehicles include, for example, unicycles and vehicles having two or more wheels. Human-powered vehicles are not limited to vehicles that can only be driven by human-powered driving force. Human-powered vehicles include electric bicycles (E-bikes) that are propelled not only by human-powered driving force but also by the driving force of an electric motor. Electric bicycles (E-bikes) include electric-assisted bicycles that are propelled with the assistance of an electric motor. In the following, in each embodiment, a human-powered vehicle is described as a bicycle.

[0064] For example, a human-powered vehicle includes a vehicle body and wheels. For example, the vehicle body includes a vehicle frame. For example, the wheels are provided on the vehicle frame. The wheels include a front wheel and a rear wheel. The human-powered vehicle includes a crankshaft 10 that can rotate relative to the vehicle frame. A crank arm 12 is provided at each end of the crankshaft 10 on the axial direction A1. Each of the crank arms 12 is connected to a pedal. The crankshaft 10 inputs human-powered driving force from the crank arm 12 and the pedal.

[0065] For example, the component 20 is arranged on the transmission path of the human driving force from the crankshaft 10 to the driving wheel of the human-powered vehicle. For example, the driving wheel includes at least one of the front wheel and the rear wheel. For example, the driving wheel includes the rear wheel. The component 20 is arranged around the input rotation center axis C1 of the crankshaft 10. The component 20 can be arranged on the axle of the driving wheel.

[0066] For example, Figures 1 to 4 As shown, the assembly 20 for a human-powered vehicle includes a shaft member 22, a transmission 24, a control unit 26, and a drive unit 30. For example, the control unit 26 controls the transmission 24 to change the speed ratio in stages. For example, the drive unit 30 is used to drive the control unit 26.

[0067] For example, the assembly 20 includes an input rotating body 32. For example, the input rotating body 32 is input with human driving force. For example, the input rotating body 32 constitutes a part of the transmission path of the human driving force. For example, the input rotating body 32 has an input rotation center axis C1. For example, the input rotating body 32 includes a crankshaft 10.

[0068] For example, the assembly 20 includes an output rotating shaft 34. For example, the output rotating shaft 34 extends substantially parallel to the input rotating body 32. In this specification, for example, the description of substantially parallel refers to a completely parallel situation or a situation that is not completely parallel but can be regarded as completely parallel. For example, a situation that can be regarded as completely parallel is a situation in which the function of the assembly 20 is not significantly affected by the non-parallelism.

[0069] For example, the output rotating shaft 34 is spaced apart from the crankshaft 10 and outputs the driving force input from the transmission 24. For example, the output rotating shaft 34 is provided on the transmission path of the human driving force. On the transmission path of the human driving force, the transmission 24 and the power transmission unit 42 are provided between the input rotating body 32 and the output rotating shaft 34.

[0070] For example, the output rotating shaft 34 is configured to output driving force to the driving wheels. For example, the driving force of the output rotating shaft 34 is transmitted to the driving wheels via the transmission member 14. For example, the driving wheels include rear wheels. The driving wheels may also include front wheels.

[0071] For example, Figure 1 and Figure 7 As shown, the assembly 20 includes an output rotating body 36. For example, the output rotating body 36 includes at least one of a sprocket, a pulley, and a bevel gear. For example, the transmission component 14 includes at least one of a chain, a belt, and a transmission shaft. For example, the output rotating shaft 34 transmits the driving force to the rear wheel via the sprocket and the chain.

[0072] For example, the output rotating body 36 is mounted on the output rotating shaft 34. For example, the output rotating shaft 34 includes an output rotating body mounting portion 34A. For example, the output rotating body mounting portion 34A includes a sprocket mounting portion. For example, the output rotating body 36 is mounted on the output rotating body mounting portion 34A in a manner that rotates integrally with the output rotating shaft 34. For example, the output rotating body 36 outputs the driving force input from the transmission 24 to the output rotating body 36 via the output rotating shaft 34. For example, the output rotating body 36 is coaxially arranged with the output rotating shaft 34. For example, the rotation direction of the output rotating body 36 is substantially the same as the rotation direction of the input rotating body 32.

[0073] For example, the output rotating body 36 is connected to the wheels via the transmission member 14. For example, the output rotating body 34 is configured to transmit the driving force to the rear wheels via the output rotating body 36 and the transmission member 14.

[0074] For example, Figure 7 As shown, the diameter of the crankshaft 10 is larger than the diameter of the output rotating shaft 34. For example, the diameter R1 of the crankshaft 10 is Figure 1 The diameter of the portion where the crank arm 12 is mounted is shown. For example, the diameter R2 of the output rotating shaft 34 is the diameter of the output rotating body mounting portion 34A. The diameter R1 may be the minimum diameter of the crankshaft 10. The diameter R2 may be the minimum diameter of the output rotating shaft 34. For example, since the diameter of the output rotating shaft 34 is smaller than the diameter of the crankshaft 10, the output rotating body 36 is less likely to interfere with the crankshaft 10 outside the housing 38.

[0075] On the transmission path of the human-powered driving force, a first one-way clutch may be provided between the input rotating body 32 and the output rotating body 36. The first one-way clutch includes at least one of a roller clutch, a dog clutch, and a sprag clutch. For example, the first one-way clutch is provided in at least one of the transmission 24 and the power transmission unit 42. For example, when the input rotating body 32 rotates forward, the first one-way clutch causes the output rotating body 36 to rotate forward. For example, when the input rotating body 32 rotates backward, the first one-way clutch inhibits the output rotating body 36 from rotating backward. For example, the forward rotation direction of the input rotating body 32 corresponds to the rotation direction of the input rotating body 32 when the human-powered vehicle is moving forward. For example, the forward rotation direction of the output rotating body 36 corresponds to the rotation direction of the output rotating body 36 when the human-powered vehicle is moving forward.

[0076] For example, a second one-way clutch is provided between the output rotating body 36 and the rear wheel on the transmission path of the human driving force. For example, the second one-way clutch includes at least one of a roller clutch, a dog clutch, and a sprag clutch. For example, if the output rotating body 36 rotates forward, the second one-way clutch causes the drive wheel to rotate forward. For example, if the output rotating body 36 rotates backward, the second one-way clutch inhibits the drive wheel from rotating backward. For example, the forward rotation direction of the drive wheel corresponds to the rotation direction of the drive wheel when the human-powered vehicle moves forward.

[0077] For example, Figures 1 to 4 ,as well as Figure 7As shown, the assembly 20 further includes a housing 38, which can be mounted on the frame of the human-powered vehicle. For example, the housing 38 has at least one frame mounting portion 38A. For example, the frame mounting portion 38A is mounted on the frame of the human-powered vehicle by bolts or the like. The housing 38 includes a plurality of frame mounting portions 38A. For example, each of the plurality of frame mounting portions 38A is arranged at intervals around the input rotation center axis C1. The plurality of frame mounting portions 38A are arranged at intervals greater than or equal to 90 degrees from each other around the input rotation center axis C1.

[0078] For example, the internal space 38B of the housing 38 accommodates at least a portion of the power transmission component included in the assembly 20. For example, the power transmission component is a part that constitutes a transmission path for the human driving force. For example, at least a portion of the power transmission component is formed of a metal material. At least a portion of the power transmission component can be formed of a resin material. For example, the power transmission component includes at least one of the transmission 24, the shaft component 22, the power transmission part 42, the input rotating body 32, the output rotating shaft 34, and the output rotating body 36.

[0079] For example, the shaft member 22 extends substantially parallel to the input rotating body 32. For example, the shaft member 22 is arranged at a distance from the input rotating body 32. For example, the shaft member 22 is arranged coaxially with the output rotating shaft 34.

[0080] For example, the shaft member 22 is spaced apart from the crankshaft 10. For example, the shaft member 22 extends in parallel with the crankshaft 10. For example, the shaft member 22 and the output rotating shaft 34 extend in parallel with the crankshaft 10. For example, the end of the shaft member 22 on the output rotating shaft 34 side is inserted into the output rotating shaft 34.

[0081] For example, the diameter of the output rotating shaft 34 is larger than the diameter of the shaft member 22. For example, the diameter R3 of the shaft member 22 is the diameter of the portion of the shaft member 22 inserted into the output rotating shaft 34. For example, the diameter R3 may be the minimum diameter of the shaft member 22. For example, the shaft member 22 has a rotation center axis C2.

[0082] For example, Figure 7 and Figure 8 As shown, the assembly 20 also includes a crankshaft support portion 40 and a power transmission portion 42. For example, the crankshaft support portion 40 supports the crankshaft 10 for inputting human driving force. For example, the crankshaft support portion 40 supports the crankshaft 10 in a manner that enables the crankshaft 10 to rotate relative to the housing 38 around the input rotation center axis C1. For example, the crankshaft support portion 40 is provided on the housing 38. For example, the crankshaft support portion 40 supports the crankshaft 10 via a bearing.

[0083] For example, the power transmission unit 42 is configured to change the ratio of the rotational speed of the speed change input rotating body 24A of the transmission 24 to the rotational speed of the crankshaft 10 to a specified ratio. For example, the power transmission unit 42 is arranged on the transmission path of the human driving force. For example, the power transmission unit 42 constitutes a part of the transmission path of the human driving force. For example, the power transmission unit 42 is connected to the input rotating body 32. For example, the human driving force is input to the power transmission unit 42 via the input rotating body 32. For example, the power transmission unit 42 connects the crankshaft 10 and the transmission 24. For example, the power transmission unit 42 is configured to transmit the human driving force input to the input rotating body 32 to the transmission 24.

[0084] For example, the power transmission part 42 includes at least one power transmission planetary gear unit 44. For example, the at least one power transmission planetary gear unit 44 is configured to be rotatable around the rotation center axis C2 of the shaft member 22. For example, the at least one power transmission planetary gear unit 44, the transmission 24, and the output rotating body 36 are arranged in the axial direction A1 of the shaft member 22 in the order of at least one power transmission planetary gear unit 44, the transmission 24, and the output rotating body 36.

[0085] For example, the power transmission planetary gear unit 44 includes a power transmission planetary gear 44A, a power transmission sun gear 44B, and a power transmission ring gear 44C. The power transmission planetary gear unit 44 includes a plurality of power transmission planetary gears 44A. The power transmission planetary gear unit 44 may include a plurality of power transmission sun gears 44B, and may also include a plurality of power transmission ring gears 44C.

[0086] For example, the power transmission planetary gear 44A is disposed between the power transmission sun gear 44B and the power transmission ring gear 44C in the radial direction relative to the rotation center axis C2 of the shaft member 22. For example, the power transmission sun gear 44B meshes with the power transmission planetary gear 44A. For example, the power transmission ring gear 44C meshes with the power transmission planetary gear 44A.

[0087] For example, at least one power transmission planetary gear unit 44 includes a power transmission gear carrier 44D. For example, the power transmission gear carrier 44D has a power transmission gear carrier pin 44E. For example, the power transmission gear carrier 44D supports the power transmission planetary gear 44A through the power transmission gear carrier pin 44E. For example, the power transmission gear carrier pin 44E has an end on one side, i.e., a first power transmission pin end 44F, and an end on the other side, i.e., a second power transmission pin end 44G, in the axial direction A1. For example, the power transmission gear carrier 44D is supported on the housing 38 in a manner that the rotation relative to the housing 38 is restricted. By restricting the rotation of the power transmission gear carrier 44D relative to the housing 38, the revolution of the power transmission planetary gear 44A around the power transmission sun gear 44B is restricted.

[0088] For example, the power transmission gear frame 44D has a first power transmission gear frame portion 44H and a second power transmission gear frame portion 44K. For example, the first power transmission pin end portion 44F is arranged on the first power transmission gear frame portion 44H. For example, the second power transmission pin end portion 44G is arranged on the second power transmission gear frame portion 44K. For example, the power transmission planetary gear 44A is arranged between the first power transmission gear frame portion 44H and the second power transmission gear frame portion 44K in the axial direction A1.

[0089] For example, the power transmission section 42 further includes a power transmission unit 46 different from the at least one power transmission planetary gear unit 44. For example, the power transmission unit 46 is configured to transmit the human driving force input to the input rotating body 32 to the at least one power transmission planetary gear unit 44.

[0090] For example, the power transmission unit 46 includes a first power transmission gear 46A and a second power transmission gear 46B. For example, the first power transmission gear 46A is coaxially arranged with the input rotating body 32. For example, the first power transmission gear 46A rotates integrally with the input rotating body 32. For example, the first power transmission gear 46A includes a spur gear.

[0091] For example, the second power transmission gear 46B meshes with the first power transmission gear 46A. For example, the second power transmission gear 46B is coaxially arranged with the shaft member 22. For example, the second power transmission gear 46B includes a spur gear. For example, the second power transmission gear 46B rotates in a direction opposite to the rotation direction of the input rotating body 32.

[0092] For example, the pitch circle diameter of the first power transmission gear 46A is larger than the pitch circle diameter of the second power transmission gear 46B. For example, the pitch circle diameter of the first power transmission gear 46A may be smaller than the pitch circle diameter of the second power transmission gear 46B. For example, at least one power transmission planetary gear unit 44 is arranged between the second power transmission gear 46B and the transmission 24 in the axial direction A1. The first power transmission gear 46A and the second power transmission gear 46B may include helical gears, respectively.

[0093] The power transmission unit 46 may include a plurality of sprockets and a chain engaged with each of the plurality of sprockets, instead of the first power transmission gear 46A and the second power transmission gear 46B, or may include a plurality of sprockets and a chain engaged with each of the plurality of sprockets on the basis of including the first power transmission gear 46A and the second power transmission gear 46B. The power transmission unit 46 may include a plurality of pulleys and a belt engaged with each of the plurality of pulleys, instead of the first power transmission gear 46A and the second power transmission gear 46B, or may include a plurality of pulleys and a belt engaged with each of the plurality of pulleys on the basis of including the first power transmission gear 46A and the second power transmission gear 46B.

[0094] For example, at least one power transmission planetary gear unit 44 includes a power transmission input portion 44M. For example, the second power transmission gear 46B is provided at the outer periphery of the power transmission input portion 44M. The rotational force output from the power transmission unit 46 is input to the power transmission input portion 44M. The power transmission input portion 44M is formed integrally with the second power transmission gear 46B so as to become one component. When the power transmission input portion 44M is formed integrally with the second power transmission gear 46B, the assembly process is simplified.

[0095] For example, the power transmission input part 44M includes a power transmission ring gear 44C. For example, the power transmission ring gear 44C is disposed at the inner periphery of the power transmission input part 44M. For example, the power transmission ring gear 44C is disposed at a portion of the power transmission input part 44M that is different from the second power transmission gear 46B in the axial direction A1. For example, the pitch circle diameter of the power transmission ring gear 44C is larger than the pitch circle diameter of the second power transmission gear 46B. For example, the pitch circle diameter of the power transmission ring gear 44C may be smaller than the pitch circle diameter of the second power transmission gear 46B.

[0096] For example, at least one power transmission planetary gear unit 44 includes a power transmission output portion 44N. For example, the power transmission output portion 44N includes a power transmission sun gear 44B. For example, the power transmission output portion 44N is configured to rotate in a direction opposite to the rotation direction of the power transmission input portion 44M. For example, by limiting the rotation of the power transmission gear carrier 44D relative to the housing 38, the rotational force input to the power transmission ring gear 44C is output from the power transmission sun gear 44B as a rotational force in the opposite direction.

[0097] For example, the power transmission input part 44M rotates integrally with the second power transmission gear 46B. Since the second power transmission gear 46B rotates in the direction opposite to the rotation direction of the input rotating body 32, the power transmission input part 44M rotates in the direction opposite to the rotation direction of the input rotating body 32. Therefore, the rotation direction of the power transmission output part 44N around the rotation center axis C2 of the shaft member 22 is the same as the rotation direction of the input rotating body 32 around the input rotation center axis C1.

[0098] For example, the power transmission unit 42 changes the rotation speed of the crankshaft 10 across two or more stages, thereby changing the ratio of the rotation speed of the speed change input rotating body 24A of the transmission 24 relative to the rotation speed of the crankshaft 10 to a prescribed ratio. For example, the prescribed ratio is greater than 1. For example, the prescribed ratio is greater than or equal to 3 and less than or equal to 20. For example, the prescribed ratio is greater than or equal to 4 and less than or equal to 15. For example, the prescribed ratio is greater than or equal to 5 and less than or equal to 10. For example, the prescribed ratio is greater than or equal to 6 and less than or equal to 7. For example, the prescribed ratio is 6.155. The prescribed ratio can be less than 1.

[0099] For example, the power transmission unit 46 changes the ratio of the rotational speed of the power transmission input part 44M relative to the crankshaft 10 to a first ratio. For example, at least one power transmission planetary gear unit 44 changes the ratio of the speed change input rotating body 24A relative to the power transmission input part 44M to a second ratio. For example, the prescribed ratio is a value obtained by multiplying the first ratio and the second ratio. For example, the first ratio is greater than 1 and less than or equal to 3. For example, the first ratio is greater than or equal to 1.5 and less than or equal to 2.5. For example, the first ratio is 2.130. For example, the second ratio is greater than or equal to 2 and less than or equal to 4. For example, the second ratio is greater than or equal to 2.5 and less than or equal to 3. For example, the second ratio is 2.889.

[0100] For example, Figure 8 As shown, the component 20 is also provided with a torque sensor 48. For example, the torque sensor 48 detects information related to the human driving force. The torque sensor 48 includes a strain sensor, a magnetostrictive sensor, or a pressure sensor. For example, the torque sensor 48 is provided on the power transmission gear frame 44D. The torque sensor 48 can be provided on a component other than the power transmission gear frame 44D in the power transmission unit 46, can be provided on the crankshaft 10, can be provided on the transmission 24, and can be provided on the output rotating shaft 34.

[0101] For example, Figures 7 to 9As shown, the transmission 24 is arranged on the transmission path of the human-powered driving force. For example, the transmission 24 is connected to the power transmission part 42. The human-powered driving force input to the input rotating body 32 is input to the transmission 24 via the power transmission part 42. For example, the transmission 24 is arranged on the shaft member 22. For example, the transmission 24 is configured to rotate around the rotation center axis C2 of the shaft member 22. In a state where the housing 38 is mounted on the vehicle frame, the driving force output from the transmission 24 is configured to be transmitted to the driving wheel of the human-powered vehicle via the transmission member 14.

[0102] For example, the transmission 24 for the human-powered vehicle can be changed to a plurality of different speed ratios. For example, the transmission 24 is configured to select one of a plurality of speed ratios. For example, the speed ratio is the ratio of the rotation speed of the output rotating shaft 34 to the rotation speed of the input rotating body 32. The speed ratio of at least one of the plurality of speed ratios may be greater than 1 or less than 1. At least one of the plurality of speed ratios may be 1.

[0103] For example, the transmission 24 includes at least one speed change unit 50. For example, the speed change unit 50 includes at least one speed change planetary gear mechanism 52. The speed change unit 50 may include a speed change mechanism other than the planetary gear mechanism as long as the speed change ratio can be changed.

[0104] For example, the speed-changing planetary gear mechanism 52 includes a speed-changing planetary gear 52A. For example, the speed-changing planetary gear 52A is one of the plurality of speed-changing planetary gears 52A. For example, the speed-changing planetary gear mechanism 52 includes a speed-changing gear carrier 52B. For example, the speed-changing gear carrier 52B supports the plurality of speed-changing planetary gears 52A. For example, the speed-changing planetary gear mechanism 52 includes a speed-changing sun gear 52C. For example, the speed-changing sun gear 52C meshes with the plurality of speed-changing planetary gears 52A. For example, the speed-changing planetary gear mechanism 52 includes a speed-changing ring gear 52D. For example, the speed-changing ring gear 52D meshes with the plurality of speed-changing planetary gears 52A. For example, by controlling the rotation state of one of the speed-changing sun gear 52C, the speed-changing gear carrier 52B, and the speed-changing ring gear 52D, one of the plurality of different speed ratios is selected.

[0105] For example, Figure 5 , Figure 6 , Fig.12 ,as well as Fig.13As shown, the control unit 26 includes at least one camshaft 56 and has at least one rotation control unit 54 for controlling at least one speed change unit 50. For example, the rotation control unit 54 has a cam unit 58 and a control member 60. For example, the cam unit 58 is provided on the camshaft 56. For example, the control member 60 is provided for each speed change ring gear 52D. For example, the control member 60 operates between the cam unit 58 and the speed change ring gear 52D. For example, the rotation state of the speed change ring gear 52D is controlled by the control member 60, so as to select one of a plurality of different speed change ratios.

[0106] For example, the driving unit 30 has a driving shaft 62 that drives at least one cam shaft 56. For example, the driving shaft 62 is connected to at least one cam shaft 56. For example, at least one cam shaft 56 is linked to the driving shaft 62.

[0107] The drive unit 30 includes a variable speed motor 28A that drives the drive shaft 62. For example, the drive unit 28 includes the variable speed motor 28A. For example, the variable speed motor 28A is connected to the drive shaft 62 via a speed reducer. For example, the drive shaft 62 is rotated by the variable speed motor 28A.

[0108] For example, Fig.12 As shown, the drive unit 30 includes a control device 30A. For example, the control device 30A is disposed on one or more circuit substrates. For example, the control device 30A is configured to control the variable speed motor 28A. For example, the control device 30A includes an arithmetic processing device that executes a predetermined control program. For example, the arithmetic processing device includes a CPU (Central Processing Unit) or an MPU (Micro Processing Unit). The arithmetic processing device can be disposed in a plurality of locations separated from each other. The control device 30A can include one or more microcomputers.

[0109] For example, the control device 30A includes a variable speed motor storage unit. The variable speed motor storage unit stores various control programs and information used for various control processes. For example, the variable speed motor storage unit includes at least one of a non-volatile memory and a volatile memory. For example, the non-volatile memory includes at least one of a ROM (Read-Only Memory), an EPROM (Erasable Programmable Read Only Memory), an EEPROM (Electrically Erasable Programmable Read-Only Memory), and a flash memory. For example, the volatile memory includes a RAM (Random Access Memory).

[0110] For example, the control device 30A is configured to control the speed motor 28A in response to a speed change signal from a speed change operating device. The control device 30A and the speed change operating device may be connected via a wireless communication device or via a cable. The control device 30A may control the speed motor 28A to change the speed ratio in response to a signal from a sensor mounted on the human-powered vehicle instead of in response to a speed change signal from the speed change operating device, or control the speed motor 28A to change the speed ratio in response to a signal from a sensor mounted on the human-powered vehicle in response to a speed change signal from the speed change operating device. For example, the signal from the sensor mounted on the human-powered vehicle is related to the driving state and driving environment of the human-powered vehicle.

[0111] For example, the drive unit 30 includes a drive unit case 30B. For example, the drive unit case 30B is provided with the variable speed motor 28A, a speed reducer of the variable speed motor 28A, a control substrate of the variable speed motor 28A, and at least a part of the drive shaft 62.

[0112] For example, Figure 5 and Figure 7 As shown, the drive unit 30 is configured to Figure 7 When viewed from the direction B1 orthogonal to the crankshaft 10 and the shaft member 22 shown, at least a portion of the drive unit 30 overlaps with at least a portion of the power transmission portion 42. For example, when viewed from the direction B1, a portion of the drive unit housing 30B in the drive unit 30, a portion of the speed reducer of the variable speed motor 28A, a portion of the control substrate of the variable speed motor 28A, and a portion of the variable speed motor 28A overlap with at least a portion of the power transmission portion 42. For example, when viewed from the direction B1, a portion of at least one power transmission planetary gear unit 44 and a portion of the power transmission unit 46 in the power transmission portion 42 overlap with at least a portion of the drive unit 30.

[0113] For example, Figure 6 and Figure 7 As shown, the drive unit 30 is configured to Figure 7 When viewed in the axial direction A1 of the shaft member 22, at least a portion of the drive unit 30 overlaps with at least a portion of the transmission 24. For example, Figure 6 The dotted line is a projection surface of the transmission 24. For example, when viewed from the axial direction A1, a portion of the drive unit housing 30B in the drive unit 30, a portion of the speed reducer of the speed-changing motor 28A, and a portion of the control substrate of the speed-changing motor 28A overlap with at least a portion of the transmission 24. For example, when viewed from the axial direction A1, a portion of at least one rotation control unit 54 in the transmission 24 overlaps with at least a portion of the drive unit 30.

[0114] For example, Figure 1 and Figure 7 As shown, the assembly 20 further includes a power supply unit 64 configured to supply power to the drive unit 30. For example, the power supply unit 64 is arranged around the crankshaft 10. For example, the power supply unit 64 is arranged around the crankshaft 10 in a manner that surrounds at least a portion of the crankshaft 10. For example, the power supply unit 64 can be arranged on a portion of the outer circumferential surface of the crankshaft 10.

[0115] For example, the power supply unit 64 extends along the crankshaft 10. For example, the power supply unit 64 is disposed between the transmission 24 and the crankshaft 10. A first distance from the power supply unit 64 to the crankshaft 10 is shorter than a second distance from the transmission 24 to the crankshaft 10. For example, the power supply unit 64 may be disposed between the transmission 24 and the crankshaft support unit 40.

[0116] For example, the power supply unit 64 includes at least one of a battery and a capacitor. The battery may be a primary battery or a secondary battery. The power supply unit 64 may include a generator. For example, the generator generates electricity through the rotational force of the crankshaft 10. The power supply unit 64 may include only one of a battery, a capacitor, and a generator, or may include at least one of a battery and a capacitor and a generator. In the case where the power supply unit 64 includes a battery and a generator, the battery includes a secondary battery.

[0117] For example, Figure 1 as well as Figure 7 As shown, the transmission 24 also includes a housing that can be mounted on the frame of the human-powered vehicle. For example, the housing of the transmission 24 is the housing 38. The transmission 24 may include a housing different from the housing 38.

[0118] For example, the transmission 24 further includes a shaft member. For example, the shaft member of the transmission 24 is the shaft member 22. For example, the assembly 20 includes the transmission 24. The assembly 20 may include a structure other than the transmission 24 in addition to the transmission 24.

[0119] For example, Figures 8 to 11 As shown, the transmission 24 includes: a first speed change portion 66, which inputs driving force from the input rotating body 32 for inputting human driving force; and a second speed change portion 68, which inputs driving force from the first speed change portion 66. For example, the transmission 24 further includes the input rotating body 32. For example, at least one speed change portion 50 includes the first speed change portion 66 and the second speed change portion 68.

[0120] For example, the first speed change portion 66 and the second speed change portion 68 are arranged on the shaft member 22. For example, the transmission 24 further includes a power transmission portion 42 connecting the input rotating body 32 and the first speed change portion 66. For example, the power transmission portion 42 is configured to change the ratio of the rotation speed of the first input rotating body 66A to the rotation speed of the input rotating body 32 to a predetermined ratio. For example, the speed change input rotating body 24A includes the first input rotating body 66A.

[0121] For example, the first speed change portion 66 includes a first input rotating body 66A and a first output rotating body 66B. For example, the first speed change portion 66 is configured to be able to select a ratio of the rotation speed of the first output rotating body 66B to the rotation speed of the first input rotating body 66A from a plurality of first speed ratios. For example, the first output rotating body 66B includes the shaft member 22.

[0122] The second speed change unit 68 includes a second input rotating body 68A and a second output rotating body 68B. The second speed change unit 68 is configured to be able to select a ratio of the rotation speed of the second output rotating body 68B to the rotation speed of the second input rotating body 68A from a plurality of second speed ratios. For example, in a state where the housing 38 is mounted on the vehicle frame, the driving force output from the second output rotating body 68B is configured to be transmitted to the driving wheel of the human-powered vehicle via the transmission member 14. For example, the second input rotating body 68A includes the shaft member 22. For example, the second output rotating body 68B includes the output rotating shaft 34.

[0123] For example, the first input rotating body 66A transmits the rotational force from the power transmission output part 44N. For example, the first input rotating body 66A is connected to the power transmission output part 44N. For example, the power transmission output part 44N includes a first connection part 70A. For example, the first connection part 70A includes a gear or a spline. For example, the first input rotating body 66A includes a second connection part 70B connected to the first connection part 70A. For example, the second connection part 70B includes a gear or a spline.

[0124] For example, the transmission 24 is capable of changing the speed ratio between the minimum speed ratio and the maximum speed ratio. For example, the minimum speed ratio is a speed ratio corresponding to deceleration. For example, the maximum speed ratio is a speed ratio corresponding to acceleration. For example, the minimum speed ratio is greater than 0 and less than 1. For example, the maximum speed ratio is greater than 1 and less than or equal to 10. The smaller the minimum speed ratio, the greater the deceleration amplitude when the speed ratio is the minimum speed ratio. The larger the maximum speed ratio, the greater the acceleration amplitude when the speed ratio is the maximum speed ratio.

[0125] For example, each of the plurality of different speed ratios is determined based on a combination of a first speed ratio selected from a plurality of first speed ratios and a second speed ratio selected from a plurality of second speed ratios. For example, the number of the plurality of first speed ratios is greater than the number of the plurality of second speed ratios.

[0126] For example, the first speed change portion 66 includes a plurality of first planetary gear mechanisms 72. For example, each of the plurality of first speed ratios corresponds to each of the plurality of first planetary gear mechanisms 72, respectively.

[0127] For example, the first speed change portion 66 has a first planetary gear unit 74. For example, the speed change planetary gear mechanism 52 includes the first planetary gear unit 74. For example, the first planetary gear unit 74 includes first planetary gears 76, first sun gears 78 meshing with the first planetary gears 76, and first ring gears 80 meshing with the first planetary gears 76.

[0128] For example, the speed change planetary gear 52A includes a first planetary gear 76. For example, the first planetary gear 76 is one of a plurality of first planetary gears 76. For example, each of the plurality of first planetary gears 76 is arranged in a manner of being spaced apart around the rotation center axis C2 of the shaft member 22. For example, the number of the plurality of first planetary gears 76 is greater than or equal to 2 and less than or equal to 8. For example, the number of the plurality of first planetary gears 76 is 4.

[0129] For example, the first planetary gear 76 includes a first speed-changing planetary gear 76A and a second speed-changing planetary gear 76B, and the pitch diameter of the second speed-changing planetary gear 76B is larger than the pitch diameter of the first speed-changing planetary gear 76A. For example, the first speed-changing planetary gear 76A and the second speed-changing planetary gear 76B are formed integrally. The first speed-changing planetary gear 76A and the second speed-changing planetary gear 76B can also be formed as separate bodies and rotate integrally.

[0130] For example, the speed change sun gear 52C includes a first sun gear 78. The first sun gear 78 may be one of a plurality of first sun gears 78. For example, the first sun gear 78 includes a first speed change sun gear 78A. For example, the first speed change sun gear 78A meshes with the second speed change planetary gear 76B. The rotation center axis of the first speed change sun gear 78A is substantially the same as the rotation center axis C2 of the shaft member 22.

[0131] For example, the speed ring gear 52D includes a first gear ring 80. For example, the first gear ring 80 is one of a plurality of first gear rings 80. For example, each of the plurality of first gear rings 80 can rotate independently of each other. For example, the plurality of first gear rings 80 includes a first speed ring gear 80A and a second speed ring gear 80B. For example, the first speed ring gear 80A is meshed with the first speed planetary gear 76A. For example, the second speed ring gear 80B is meshed with the second speed planetary gear 76B.

[0132] For example, the first planetary gear unit 74 includes a first carrier 82 that supports the first planetary gears 76. For example, the transmission carrier 52B includes the first carrier 82. For example, the first carrier 82 has a first carrier portion 84 and a second carrier portion 86. The first carrier portion 84 is formed integrally with the first input rotating body 66A.

[0133] For example, the first gear carrier 82 has a first gear carrier pin 82A. For example, the first gear carrier pin 82A rotatably supports the first planetary gear 76. For example, the first gear carrier pin 82A is arranged between the first gear carrier portion 84 and the second gear carrier portion 86 in the axial direction A1. The first gear carrier pin 82A can rotatably support the first planetary gear 76 via a bearing.

[0134] For example, the first gear carrier pin 82A has a first pin end 82B as one end and a second pin end 82C as the other end in the axial direction A1. For example, the first pin end 82B is supported by the first gear carrier portion 84. For example, the second pin end 82C is supported by the second gear carrier portion 86.

[0135] The first gear frame pin 82A may be configured such that the first pin end 82B is fixed to the first gear frame portion 84, and the second pin end 82C is fixed to the second gear frame portion 86. The first gear frame pin 82A may be configured such that the first pin end 82B is rotatably supported on the first gear frame portion 84, and the second pin end 82C is rotatably supported on the second gear frame portion 86. When the first pin end 82B is rotatably supported on the first gear frame portion 84, and the second pin end 82C is rotatably supported on the second gear frame portion 86, the first planetary gear 76 may be non-rotatably supported on the first gear frame pin 82A.

[0136] For example, the second speed change portion 68 includes a plurality of second planetary gear mechanisms 88. For example, each of the plurality of second speed ratios corresponds to each of the plurality of second planetary gear mechanisms 88, respectively.

[0137] For example, the second speed change portion 68 has a second planetary gear unit 90. For example, the speed change planetary gear mechanism 52 includes the second planetary gear unit 90. For example, the second planetary gear unit 90 includes second planetary gears 92, a second sun gear 94 meshing with the second planetary gears 92, and a second ring gear 96 meshing with the second planetary gears 92.

[0138] For example, the speed change planetary gear 52A includes a second planetary gear 92. For example, the second planetary gear 92 is one of a plurality of second planetary gears 92. For example, each of the plurality of second planetary gears 92 is arranged in a manner of being spaced apart around the rotation center axis C2 of the shaft member 22. For example, the number of the plurality of second planetary gears 92 is greater than or equal to 2 and less than or equal to 8. For example, the number of the plurality of second planetary gears 92 is 4.

[0139] For example, the second planetary gear 92 includes a third speed planetary gear 92A and a fourth speed planetary gear 92B, and the pitch diameter of the fourth speed planetary gear 92B is smaller than the pitch diameter of the third speed planetary gear 92A. For example, the third speed planetary gear 92A and the fourth speed planetary gear 92B are formed integrally. The third speed planetary gear 92A and the fourth speed planetary gear 92B can be formed as separate bodies and rotate integrally.

[0140] For example, the speed change sun gear 52C includes a second sun gear 94. The second sun gear 94 may be one of a plurality of second sun gears 94. For example, the second sun gear 94 includes a second speed change sun gear 94A. For example, the second speed change sun gear 94A meshes with the fourth speed change planetary gear 92B. The rotation center axis of the second speed change sun gear 94A is substantially the same as the rotation center axis C2 of the shaft member 22.

[0141] For example, the speed ring gear 52D includes a second gear ring 96. For example, the second gear ring 96 includes a third speed ring gear 96A. For example, the third speed ring gear 96A meshes with the third speed planetary gear 92A. The second gear ring 96 can be one of a plurality of second gear rings 96. For example, in this case, each of the plurality of second gear rings 96 can rotate independently of each other.

[0142] For example, the second planetary gear unit 90 includes a second carrier 98 that supports the second planetary gears 92. For example, the speed change carrier 52B includes the second carrier 98. For example, the second carrier 98 has a third carrier portion 100 and a fourth carrier portion 102.

[0143] For example, the second carrier 98 has a second carrier pin 98A. For example, the second carrier pin 98A rotatably supports the second planetary gear 92. For example, the second carrier pin 98A is disposed between the third carrier portion 100 and the fourth carrier portion 102 in the axial direction A1. The second carrier pin 98A can rotatably support the second planetary gear 92 via a bearing.

[0144] For example, the second gear carrier pin 98A has a third pin end 98B as one end and a fourth pin end 98C as the other end in the axial direction A1. For example, the third pin end 98B is supported by the third gear carrier portion 100. For example, the fourth pin end 98C is supported by the fourth gear carrier portion 102.

[0145] The second gear frame pin 98A may be configured such that the third pin end 98B is fixed to the third gear frame portion 100, and the fourth pin end 98C is fixed to the fourth gear frame portion 102. The second gear frame pin 98A may be configured such that the third pin end 98B is rotatably supported by the third gear frame portion 100, and the fourth pin end 98C is rotatably supported by the fourth gear frame portion 102. When the third pin end 98B is rotatably supported by the third gear frame portion 100, and the fourth pin end 98C is rotatably supported by the fourth gear frame portion 102, the second planetary gear 92 may be non-rotatably supported by the second gear frame pin 98A.

[0146] For example, the first speed change portion 66 further includes a third planetary gear unit 104. For example, the speed change planetary gear mechanism 52 includes the third planetary gear unit 104. For example, the third planetary gear unit 104 includes a third planetary gear 106, a third sun gear 108 meshing with the third planetary gear 106, and a third ring gear 110 meshing with the third planetary gear 106.

[0147] For example, the speed change planetary gear 52A includes a third planetary gear 106. For example, the third planetary gear 106 includes one of a plurality of third planetary gears 106. Each of the plurality of third planetary gears 106 is arranged in a manner spaced apart around the rotation center axis C2 of the shaft member 22. For example, the number of the plurality of third planetary gears 106 is greater than or equal to 2 and less than or equal to 8. For example, the number of the plurality of third planetary gears 106 is 4.

[0148] For example, the third planetary gear 106 includes a fifth speed planetary gear 106A and a sixth speed planetary gear 106B, and the pitch circle diameter of the sixth speed planetary gear 106B is larger than the pitch circle diameter of the fifth speed planetary gear 106A. For example, the fifth speed planetary gear 106A and the sixth speed planetary gear 106B are formed integrally. The fifth speed planetary gear 106A and the sixth speed planetary gear 106B can be formed as separate bodies and rotate integrally.

[0149] For example, the speed change sun gear 52C includes a third sun gear 108. The third sun gear 108 can be one of a plurality of third sun gears 108. For example, the third sun gear 108 includes a third speed change sun gear 108A. For example, the third speed change sun gear 108A is meshed with the fifth speed change planetary gear 106A. The rotation center axis of the third speed change sun gear 108A is substantially the same as the rotation center axis C2 of the shaft member 22.

[0150] For example, the first sun gear 78 and the third sun gear 108 are formed integrally. For example, the first speed change sun gear 78A and the third speed change sun gear 108A are formed integrally. The first sun gear 78 and the third sun gear 108 can be formed separately and rotate integrally. For example, the pitch circle diameter of the first speed change sun gear 78A is smaller than the pitch circle diameter of the third speed change sun gear 108A.

[0151] For example, the first sun gear 78 and the third sun gear 108 are configured to be formed separately from the shaft component 22 and rotate integrally with the shaft component 22. For example, the first speed change sun gear 78A and the third speed change sun gear 108A are formed on the outer periphery of the first cylinder component 112A. For example, the first engaging portion 112B is formed on the inner periphery of the first cylinder component 112A. For example, the first engaging portion 112B includes a spline or a serration. For example, the first engaging portion 112B engages with the first shaft component engaging portion 22A of the shaft component 22. For example, the first shaft component engaging portion 22A includes a spline or a serration. For example, the first shaft component engaging portion 22A is formed integrally with the shaft component 22. The first speed change sun gear 78A and the third speed change sun gear 108A can be formed integrally with the shaft component 22.

[0152] For example, the speed ring gear 52D includes a third gear ring 110. For example, the third gear ring 110 is one of a plurality of third gear rings 110. For example, each of the plurality of third gear rings 110 can rotate independently of each other. For example, the plurality of third gear rings 110 includes a fourth speed ring gear 110A and a fifth speed ring gear 110B. For example, the fourth speed ring gear 110A is meshed with the fifth speed planetary gear 106A. For example, the fifth speed ring gear 110B is meshed with the sixth speed planetary gear 106B.

[0153] For example, the third planetary gear unit 104 includes a third carrier 114 that supports the third planetary gears 106. For example, the transmission carrier 52B includes the third carrier 114. For example, the third carrier 114 has a first carrier portion 84 and a second carrier portion 86.

[0154] For example, the third gear carrier 114 has a third gear carrier pin 114A. For example, the third gear carrier pin 114A rotatably supports the third planetary gear 106. For example, the third gear carrier pin 114A is arranged between the first gear carrier portion 84 and the second gear carrier portion 86 in the axial direction A1. For example, the third gear carrier pin 114A can rotatably support the third planetary gear 106 via a bearing.

[0155] For example, the third carrier pin 114A has a fifth pin end 114B as one end and a sixth pin end 114C as the other end in the axial direction A1. For example, the fifth pin end 114B is supported by the first carrier portion 84. For example, the sixth pin end 114C is supported by the second carrier portion 86.

[0156] The third gear carrier pin 114A may be configured such that the fifth pin end 114B is fixed to the first gear carrier portion 84, and the sixth pin end 114C is fixed to the second gear carrier portion 86. The third gear carrier pin 114A may be configured such that the fifth pin end 114B is rotatably supported by the first gear carrier portion 84, and the sixth pin end 114C is rotatably supported by the second gear carrier portion 86. When the fifth pin end 114B is rotatably supported by the first gear carrier portion 84, and the sixth pin end 114C is rotatably supported by the second gear carrier portion 86, the third planetary gear 106 may be non-rotatably supported by the third gear carrier pin 114A.

[0157] For example, a portion of the first gear frame 82 is integrally formed with a portion of the third gear frame 114. For example, the first gear frame portion 84 is a portion of the first gear frame 82 and a portion of the third gear frame 114. For example, the second gear frame portion 86 is a portion of the first gear frame 82 and a portion of the third gear frame 114.

[0158] For example, the third gear carrier pin 114A is formed as a different component from the first gear carrier pin 82A, and is arranged at a distance from the first gear carrier pin 82A. For example, the first gear carrier pin 82A is one of the plurality of first gear carrier pins 82A corresponding to the plurality of first planetary gears 76. For example, the third gear carrier pin 114A is one of the plurality of third gear carrier pins 114A corresponding to the plurality of third planetary gears 106. For example, the plurality of first gear carrier pins 82A and the plurality of third gear carrier pins 114A are alternately arranged at equal intervals around the rotation center axis C2 of the shaft member 22.

[0159] For example, the second speed change portion 68 further includes a fourth planetary gear unit 116. For example, the speed change planetary gear mechanism 52 includes the fourth planetary gear unit 116. For example, the fourth planetary gear unit 116 includes fourth planetary gears 118, a fourth sun gear 120 meshing with the fourth planetary gears 118, and a fourth ring gear 122 meshing with the fourth planetary gears 118.

[0160] For example, the speed change planetary gear 52A includes a fourth planetary gear 118. For example, the fourth planetary gear 118 is one of the plurality of fourth planetary gears 118. For example, each of the plurality of fourth planetary gears 118 is arranged in a manner of being spaced apart around the rotation center axis C2 of the shaft member 22. For example, the number of the plurality of fourth planetary gears 118 is greater than or equal to 2 and less than or equal to 8. For example, the number of the plurality of fourth planetary gears 118 is 4. For example, the plurality of fourth planetary gears 118 includes a seventh speed change planetary gear 118A.

[0161] For example, the speed change sun gear 52C includes a fourth sun gear 120. The fourth sun gear 120 may be one of a plurality of fourth sun gears 120. For example, the fourth sun gear 120 includes a fourth speed change sun gear 120A. For example, the fourth speed change sun gear 120A is meshed with the seventh speed change planetary gear 118A. The rotation center axis of the fourth speed change sun gear 120A is substantially the same as the rotation center axis C2 of the shaft member 22.

[0162] For example, the second sun gear 94 and the fourth sun gear 120 are formed integrally. For example, the second speed change sun gear 94A and the fourth speed change sun gear 120A are formed integrally. The second sun gear 94 and the fourth sun gear 120 can be formed as separate bodies and rotate as one. The second speed change sun gear 94A and the fourth speed change sun gear 120A can be formed as separate bodies and rotate as one.

[0163] For example, the second sun gear 94 and the fourth sun gear 120 are formed separately from the shaft component 22 and rotate integrally with the shaft component 22. For example, the second speed change sun gear 94A and the fourth speed change sun gear 120A are formed on the outer periphery of the second cylinder component 112C. For example, the second engaging portion 112D is formed on the inner periphery of the second cylinder component 112C. For example, the second engaging portion 112D includes a spline or a serration. For example, the second engaging portion 112D engages with the second shaft component engaging portion 22B of the shaft component 22. For example, the second shaft component engaging portion 22B includes a spline or a serration. For example, the second shaft component engaging portion 22B is formed integrally with the shaft component 22. For example, the second sun gear 94 and the fourth sun gear 120 can be formed integrally with the shaft component 22.

[0164] For example, the speed ring gear 52D includes a fourth gear ring 122. For example, the fourth gear ring 122 includes a sixth speed ring gear 122A. For example, the sixth speed ring gear 122A is meshed with the seventh speed planetary gear 118A. The fourth gear ring 122 may be one of a plurality of fourth gear rings 122. For example, in this case, each of the plurality of fourth gear rings 122 can rotate independently of one another.

[0165] For example, the fourth planetary gear unit 116 includes a fourth carrier 124 that supports the fourth planetary gears 118. For example, the transmission carrier 52B includes the fourth carrier 124. For example, the fourth carrier 124 has a third carrier portion 100 and a fourth carrier portion 102.

[0166] For example, the fourth carrier 124 has a fourth carrier pin 124A. For example, the fourth carrier pin 124A rotatably supports the fourth planetary gear 118. For example, the fourth carrier pin 124A is disposed between the third carrier portion 100 and the fourth carrier portion 102 in the axial direction A1. The fourth carrier pin 124A can rotatably support the fourth planetary gear 118 via a bearing.

[0167] For example, the fourth carrier pin 124A has a seventh pin end 124B as one end and an eighth pin end 124C as the other end in the axial direction A1. For example, the seventh pin end 124B is supported by the third carrier portion 100. For example, the eighth pin end 124C is supported by the fourth carrier portion 102.

[0168] The fourth gear carrier pin 124A may be configured such that the seventh pin end 124B is fixed to the third gear carrier portion 100, and the eighth pin end 124C is fixed to the fourth gear carrier portion 102. The fourth gear carrier pin 124A may be configured such that the seventh pin end 124B is rotatably supported by the third gear carrier portion 100, and the eighth pin end 124C is rotatably supported by the fourth gear carrier portion 102. When the seventh pin end 124B is rotatably supported by the third gear carrier portion 100, and the eighth pin end 124C is rotatably supported by the fourth gear carrier portion 102, the fourth planetary gear 118 may be non-rotatably supported by the fourth gear carrier pin 124A.

[0169] For example, the fourth gear frame 124 is the same gear frame as the second gear frame 98. For example, the fourth gear frame pin 124A is the same gear frame pin as the second gear frame pin 98A. For example, the second planetary gear 92 and the fourth planetary gear 118 are arranged in the axial direction A1. For example, the fourth gear frame 124 can be a gear frame different from the second gear frame 98. For example, the fourth gear frame pin 124A can be a gear frame pin different from the second gear frame pin 98A.

[0170] For example, the second speed change portion 68 further includes a fifth planetary gear unit 126. For example, the speed change planetary gear mechanism 52 includes the fourth planetary gear unit 116. For example, the fifth planetary gear unit 126 includes a fifth planetary gear 128, a fifth carrier 130 supporting the fifth planetary gear 128, a fifth sun gear 132 meshing with the fifth planetary gear 128, and a fifth ring gear 134 meshing with the fifth planetary gear 128.

[0171] For example, the speed change planetary gear 52A includes a fifth planetary gear 128. For example, the fifth planetary gear 128 is one of the plurality of fifth planetary gears 128. For example, each of the plurality of fifth planetary gears 128 is arranged in a manner of being spaced apart around the rotation center axis C2 of the shaft member 22. For example, the number of the plurality of fifth planetary gears 128 is greater than or equal to 2 and less than or equal to 8. For example, the number of the plurality of fifth planetary gears 128 is 4.

[0172] For example, the fifth planetary gear 128 includes an eighth speed planetary gear 128A and a ninth speed planetary gear 128B having a larger pitch diameter than the eighth speed planetary gear 128A. For example, the eighth speed planetary gear 128A and the ninth speed planetary gear 128B are formed integrally. The eighth speed planetary gear 128A and the ninth speed planetary gear 128B may be formed as separate bodies and rotate integrally.

[0173] For example, the speed change sun gear 52C includes a fifth sun gear 132. The fifth sun gear 132 may be one of a plurality of fifth sun gears 132. For example, the fifth sun gear 132 includes a fifth speed change sun gear 132A. For example, the fifth speed change sun gear 132A meshes with the ninth speed change planetary gear 128B. The rotation center axis of the fifth speed change sun gear 132A is substantially the same as the rotation center axis C2 of the shaft member 22.

[0174] For example, the fifth sun gear 132 is formed integrally with the shaft member 22. The fifth sun gear 132 may be formed separately from the shaft member 22 and connected to the shaft member 22 by splines or serrations so as to rotate integrally with the shaft member 22.

[0175] For example, the first sun gear 78, the second sun gear 94, the third sun gear 108, the fourth sun gear 120, and the fifth sun gear 132 are configured to rotate integrally in a first direction around the rotation center axis C2 of the shaft member 22. For example, the first sun gear 78, the second sun gear 94, the third sun gear 108, the fourth sun gear 120, and the fifth sun gear 132 may be configured to rotate integrally in a second direction opposite to the first direction around the rotation center axis C2 of the shaft member 22.

[0176] For example, the pitch diameter of the first speed sun gear 78A is larger than the pitch diameter of the fifth speed sun gear 132A. For example, the pitch diameter of the first speed sun gear 78A is smaller than the pitch diameter of each of the second speed sun gear 94A, the third speed sun gear 108A, and the fourth speed sun gear 120A.

[0177] For example, the pitch diameter of the second speed sun gear 94A is larger than the pitch diameter of each of the first speed sun gear 78A and the fifth speed sun gear 132A. For example, the pitch diameter of the second speed sun gear 94A is smaller than the pitch diameter of each of the third speed sun gear 108A and the fourth speed sun gear 120A.

[0178] For example, the pitch circle diameter of the third speed change sun gear 108A is larger than the pitch circle diameter of each of the first speed change sun gear 78A, the second speed change sun gear 94A, the fourth speed change sun gear 120A, and the fifth speed change sun gear 132A.

[0179] For example, the pitch diameter of the fourth speed sun gear 120A is larger than the pitch diameter of each of the first speed sun gear 78A, the second speed sun gear 94A, and the fifth speed sun gear 132A. For example, the pitch diameter of the fourth speed sun gear 120A is smaller than the third speed sun gear 108A.

[0180] For example, the fifth speed change sun gear 132A has a smaller pitch circle diameter than each of the first speed change sun gear 78A, the second speed change sun gear 94A, the third speed change sun gear 108A, and the fourth speed change sun gear 120A.

[0181] For example, the speed ring gear 52D includes a fifth gear ring 134. For example, the fifth gear ring 134 includes a seventh speed ring gear 134A. For example, the seventh speed ring gear 134A is meshed with the eighth speed planetary gear 128A. The fifth gear ring 134 may be one of a plurality of fifth gear rings 134. For example, in this case, each of the plurality of fifth gear rings 134 can rotate independently of each other.

[0182] For example, the transmission carrier 52B includes a fifth carrier 130. For example, a portion of the fifth carrier 130 is formed integrally with a portion of the second carrier 98. For example, a portion of the fifth carrier 130 is formed integrally with a portion of the fourth carrier 124.

[0183] For example, the fifth gear carrier 130 has a fifth gear carrier pin 130A. For example, the fifth gear carrier pin 130A rotatably supports the fifth planetary gear 128. For example, the fifth gear carrier 130 includes the third gear carrier portion 100, the fourth gear carrier portion 102, and the fifth gear carrier portion 136. For example, the fifth gear carrier pin 130A is supported by the third gear carrier portion 100, the fourth gear carrier portion 102, and the fifth gear carrier portion 136.

[0184] For example, the fifth gear frame pin 130A has an end portion on one side, namely, a ninth pin end portion 130B, and an end portion on the other side, namely, a tenth pin end portion 130C, in the axial direction A1. For example, the ninth pin end portion 130B is supported by the third gear frame portion 100. For example, the tenth pin end portion 130C is supported by the fifth gear frame portion 136. For example, the fourth gear frame portion 102 is arranged between the third gear frame portion 100 and the fifth gear frame portion 136. For example, the fourth gear frame portion 102 supports the portion of the fifth gear frame pin 130A between the third gear frame portion 100 and the fifth gear frame portion 136.

[0185] For example, the fifth gear carrier pin 130A may be configured such that the ninth pin end 130B is fixed to the third gear carrier portion 100, and the tenth pin end 130C is fixed to the fifth gear carrier portion 136. For example, the fifth gear carrier pin 130A may be configured such that the ninth pin end 130B is rotatably supported on the third gear carrier portion 100, and the tenth pin end 130C is rotatably supported on the fifth gear carrier portion 136. In the case where the ninth pin end 130B is rotatably supported on the third gear carrier portion 100, and the tenth pin end 130C is rotatably supported on the fifth gear carrier portion 136, the fifth planetary gear 128 may be non-rotatably supported on the fifth gear carrier pin 130A.

[0186] For example, the fifth gear carrier pin 130A is formed as a different component from the second gear carrier pin 98A and the fourth gear carrier pin 124A, and is arranged at intervals from the second gear carrier pin 98A and the fourth gear carrier pin 124A. For example, the second gear carrier pin 98A is one of the plurality of second gear carrier pins 98A corresponding to the plurality of second planetary gears 92. For example, the fourth gear carrier pin 124A is one of the plurality of fourth gear carrier pins 124A corresponding to the plurality of fourth planetary gears 118. For example, the fifth gear carrier pin 130A is one of the plurality of fifth gear carrier pins 130A corresponding to the plurality of fifth planetary gears 128. For example, the plurality of second gear carrier pins 98A and the plurality of fifth gear carrier pins 130A are alternately arranged at equal intervals around the rotation center axis C2 of the shaft member 22. For example, the plurality of fourth gear carrier pins 124A and the plurality of fifth gear carrier pins 130A are alternately arranged at equal intervals around the rotation center axis C2 of the shaft member 22.

[0187] For example, in the first planetary gear unit 74, one of the plurality of first speed ratios is selected by controlling the rotation state of one of the first sun gear 78, the first gear carrier 82, and the first ring gear 80. For example, in the third planetary gear unit 104, one of the plurality of first speed ratios is selected by controlling the rotation state of one of the third sun gear 108, the third gear carrier 114, and the third ring gear 110.

[0188] For example, in the second planetary gear unit 90, one of the plurality of second speed ratios is selected by controlling the rotation state of one of the second sun gear 94, the second gear carrier 98, and the second ring gear 96. For example, in the fourth planetary gear unit 116, one of the plurality of second speed ratios is selected by controlling the rotation state of one of the fourth sun gear 120, the fourth gear carrier 124, and the fourth ring gear 122. For example, in the fifth planetary gear unit 126, one of the plurality of second speed ratios is selected by controlling the rotation state of one of the fifth sun gear 132, the fifth gear carrier 130, and the fifth ring gear 134.

[0189] For example, in the first speed change unit 66, one of the plurality of first speed ratios is selected by controlling the rotation state of one of the first ring gear 80 and the third ring gear 110. For example, in the second speed change unit 68, one of the plurality of second speed ratios is selected by controlling the rotation state of one of the second ring gear 96, the fourth ring gear 122, and the fifth ring gear 134. For example, in the transmission 24, one of the plurality of second speed ratios is selected by controlling the rotation state of one of the first ring gear 80, the second ring gear 96, the third ring gear 110, the fourth ring gear 122, and the fifth ring gear 134.

[0190] For example, the transmission 24 has a plurality of transmission paths. The plurality of transmission paths constitute a part of the transmission path of the human driving force. The driving force input from the power transmission output portion 44N to the speed change input rotating body 24A is output to the output rotating body 36 via any one of the plurality of transmission paths. The plurality of transmission paths include a first transmission path, a second transmission path, a third transmission path, a fourth transmission path, a fifth transmission path, a sixth transmission path, a seventh transmission path, an eighth transmission path, a ninth transmission path, a tenth transmission path, an eleventh transmission path, and a twelfth transmission path.

[0191] For example, the first transmission path is a transmission path in which the driving force input to the speed change input rotating body 24A is output to the output rotating body 36 via the third gear frame 114, the sixth speed change planetary gear 106B, the third speed change sun gear 108A, the shaft component 22, the fifth speed change sun gear 132A, the ninth speed change planetary gear 128B, and the fifth gear frame part 136.

[0192] For example, the second transmission path is a transmission path in which the driving force input to the speed change input rotating body 24A is output to the output rotating body 36 via the third gear frame 114, the fifth speed change planetary gear 106A, the third speed change sun gear 108A, the shaft component 22, the fifth speed change sun gear 132A, the ninth speed change planetary gear 128B, and the fifth gear frame part 136.

[0193] For example, the third transmission path is a transmission path in which the driving force input to the speed change input rotating body 24A is output to the output rotating body 36 via the first gear frame 82, the second speed change planetary gear 76B, the first speed change sun gear 78A, the shaft component 22, the fifth speed change sun gear 132A, the ninth speed change planetary gear 128B, and the fifth gear frame part 136.

[0194] For example, the fourth transmission path is a transmission path in which the driving force input to the speed change input rotating body 24A is output to the output rotating body 36 via the first gear frame 82, the first speed change planetary gear 76A, the second speed change planetary gear 76B, the first speed change sun gear 78A, the shaft component 22, the fifth speed change sun gear 132A, the ninth speed change planetary gear 128B, and the fifth gear frame part 136.

[0195] For example, the fifth transmission path is a transmission path in which the driving force input to the speed change input rotating body 24A is output to the output rotating body 36 via the third gear frame 114, the sixth speed planetary gear 106B, the third speed sun gear 108A, the shaft component 22, the fourth speed sun gear 120A, the seventh speed planetary gear 118A, the fourth gear frame portion 102, and the fifth gear frame portion 136.

[0196] For example, the sixth transmission path is a transmission path in which the driving force input to the speed change input rotating body 24A is output to the output rotating body 36 via the third gear frame 114, the fifth speed change planetary gear 106A, the third speed change sun gear 108A, the shaft component 22, the fourth speed change sun gear 120A, the seventh speed change planetary gear 118A, the fourth gear frame portion 102, and the fifth gear frame portion 136.

[0197] For example, the seventh transmission path is a transmission path in which the driving force input to the speed change input rotating body 24A is output to the output rotating body 36 via the first gear frame 82, the second speed change planetary gear 76B, the first speed change sun gear 78A, the shaft component 22, the fourth speed change sun gear 120A, the seventh speed change planetary gear 118A, the fourth gear frame portion 102, and the fifth gear frame portion 136.

[0198] For example, the eighth transmission path is a transmission path in which the driving force input to the speed change input rotating body 24A is output to the output rotating body 36 via the first gear frame 82, the first speed change planetary gear 76A, the second speed change planetary gear 76B, the first speed change sun gear 78A, the shaft component 22, the fourth speed change sun gear 120A, the seventh speed change planetary gear 118A, the fourth gear frame portion 102, and the fifth gear frame portion 136.

[0199] For example, the ninth transmission path is a transmission path in which the driving force input to the speed change input rotating body 24A is output to the output rotating shaft 34 via the third gear frame 114, the sixth speed planetary gear 106B, the third speed sun gear 108A, the shaft component 22, the second speed sun gear 94A, the fourth speed planetary gear 92B, the fourth gear frame portion 102, and the fifth gear frame portion 136.

[0200] For example, the tenth transmission path is a transmission path in which the driving force input to the speed change input rotating body 24A is output to the output rotating shaft 34 via the third gear frame 114, the fifth speed change planetary gear 106A, the third speed change sun gear 108A, the shaft component 22, the second speed change sun gear 94A, the fourth speed change planetary gear 92B, the fourth gear frame portion 102, and the fifth gear frame portion 136.

[0201] For example, the eleventh transmission path is a transmission path in which the driving force input to the speed change input rotating body 24A is output to the output rotating shaft 34 via the first gear frame 82, the second speed change planetary gear 76B, the first speed change sun gear 78A, the shaft component 22, the second speed change sun gear 94A, the fourth speed change planetary gear 92B, the fourth gear frame portion 102, and the fifth gear frame portion 136.

[0202] For example, the twelfth transmission path is a transmission path in which the driving force input to the speed change input rotating body 24A is output to the output rotating shaft 34 via the first gear frame 82, the first speed change planetary gear 76A, the second speed change planetary gear 76B, the first speed change sun gear 78A, the shaft component 22, the second speed change sun gear 94A, the fourth speed change planetary gear 92B, the fourth gear frame portion 102, and the fifth gear frame portion 136.

[0203] For example, the first transmission path to the twelfth transmission path are selected according to the rotation state of the plurality of speed gear rings 52D. For example, the rotation state of the plurality of speed gear rings 52D is switched between the permitted state and the restricted state. In the restricted state, the rotation of the plurality of speed gear rings 52D relative to the housing 38 is restricted. In the permitted state, the rotation of the plurality of speed gear rings 52D relative to the housing 38 is permitted. In the restricted state, in order to allow the transmission 24 to transmit the human driving force, if the rotation in one direction of the first direction and the second direction around the rotation center axis C2 of the shaft member 22, which should prevent the rotation of the plurality of speed gear rings 52D, is restricted, the rotation in the other direction may not be restricted.

[0204] Table 1 shows the rotation state of the shift gear ring 52D included in the first shift section 66 and the rotation state of the shift gear ring 52D included in the second shift section 68 in each transmission path. For example, the shift gear ring 52D included in the first shift section 66 includes the first shift gear ring 80A, the second shift gear ring 80B, the fourth shift gear ring 110A, and the fifth shift gear ring 110B. For example, the shift gear ring 52D included in the second shift section 68 includes the third shift gear ring 96A, the sixth shift gear ring 122A, and the seventh shift gear ring 134A. In Table 1, when the rotation state of the first shift gear ring 80A, the second shift gear ring 80B, the third shift gear ring 96A, the fourth shift gear ring 110A, the fifth shift gear ring 110B, the sixth shift gear ring 122A, and the seventh shift gear ring 134A is a restricted state, it is represented by "0". In Table 1, when the rotation states of the first speed ring gear 80A, the second speed ring gear 80B, the third speed ring gear 96A, the fourth speed ring gear 110A, the fifth speed ring gear 110B, the sixth speed ring gear 122A, and the seventh speed ring gear 134A are in the permitted state, it is indicated by "×".

[0205] (Table 1)

[0206]

[0207] As shown in Table 1, when the first transmission path is selected from the plurality of transmission paths, the rotation states of the first speed ring gear 80A, the second speed ring gear 80B, the third speed ring gear 96A, the fourth speed ring gear 110A, and the sixth speed ring gear 122A are in the permitted state. When the first transmission path is selected from the plurality of transmission paths, the rotation states of the fifth speed ring gear 110B and the seventh speed ring gear 134A are in the restricted state.

[0208] When the second transmission path is selected from the plurality of transmission paths, the rotation states of the first speed ring gear 80A, the second speed ring gear 80B, the fifth speed ring gear 110B, the third speed ring gear 96A, and the sixth speed ring gear 122A are in the permitted state. When the second transmission path is selected from the plurality of transmission paths, the rotation states of the fourth speed ring gear 110A and the seventh speed ring gear 134A are in the restricted state.

[0209] When the third transmission path is selected from the plurality of transmission paths, the rotation states of the first speed ring gear 80A, the third speed ring gear 96A, the fourth speed ring gear 110A, the fifth speed ring gear 110B, and the sixth speed ring gear 122A are in the permitted state. When the third transmission path is selected from the plurality of transmission paths, the rotation states of the second speed ring gear 80B and the seventh speed ring gear 134A are in the restricted state.

[0210] When the fourth transmission path is selected from the plurality of transmission paths, the rotation states of the second speed ring gear 80B, the third speed ring gear 96A, the fourth speed ring gear 110A, the fifth speed ring gear 110B, and the sixth speed ring gear 122A are in the permitted state. When the fourth transmission path is selected from the plurality of transmission paths, the rotation states of the first speed ring gear 80A and the seventh speed ring gear 134A are in the restricted state.

[0211] When the fifth transmission path is selected from the plurality of transmission paths, the rotation states of the first speed ring gear 80A, the second speed ring gear 80B, the third speed ring gear 96A, the fourth speed ring gear 110A, and the seventh speed ring gear 134A are in the permitted state. When the fifth transmission path is selected from the plurality of transmission paths, the rotation states of the fifth speed ring gear 110B and the sixth speed ring gear 122A are in the restricted state.

[0212] When the sixth transmission path is selected from the plurality of transmission paths, the rotation states of the first speed ring gear 80A, the second speed ring gear 80B, the fifth speed ring gear 110B, the third speed ring gear 96A, and the seventh speed ring gear 134A are in the permitted state. When the sixth transmission path is selected from the plurality of transmission paths, the rotation states of the fourth speed ring gear 110A and the sixth speed ring gear 122A are in the restricted state.

[0213] When the seventh transmission path is selected from the plurality of transmission paths, the rotation states of the first speed ring gear 80A, the third speed ring gear 96A, the fourth speed ring gear 110A, the fifth speed ring gear 110B, and the seventh speed ring gear 134A are in the permitted state. When the seventh transmission path is selected from the plurality of transmission paths, the rotation states of the second speed ring gear 80B and the sixth speed ring gear 122A are in the restricted state.

[0214] When the eighth transmission path is selected from the plurality of transmission paths, the rotation states of the second speed ring gear 80B, the third speed ring gear 96A, the fourth speed ring gear 110A, the fifth speed ring gear 110B, and the seventh speed ring gear 134A are in the permitted state. When the eighth transmission path is selected from the plurality of transmission paths, the rotation states of the first speed ring gear 80A and the sixth speed ring gear 122A are in the restricted state.

[0215] When the ninth transmission path is selected from the plurality of transmission paths, the rotation states of the first speed ring gear 80A, the second speed ring gear 80B, the fourth speed ring gear 110A, the sixth speed ring gear 122A, and the seventh speed ring gear 134A are in the permitted state. When the ninth transmission path is selected from the plurality of transmission paths, the rotation states of the third speed ring gear 96A and the fifth speed ring gear 110B are in the restricted state.

[0216] When the tenth transmission path is selected from the plurality of transmission paths, the rotation states of the first speed ring gear 80A, the second speed ring gear 80B, the fifth speed ring gear 110B, the sixth speed ring gear 122A, and the seventh speed ring gear 134A are in the permitted state. When the tenth transmission path is selected from the plurality of transmission paths, the rotation states of the third speed ring gear 96A and the fourth speed ring gear 110A are in the restricted state.

[0217] When the eleventh transmission path is selected from the plurality of transmission paths, the rotation states of the first speed ring gear 80A, the fourth speed ring gear 110A, the fifth speed ring gear 110B, the sixth speed ring gear 122A, and the seventh speed ring gear 134A are in the permitted state. When the eleventh transmission path is selected from the plurality of transmission paths, the rotation states of the second speed ring gear 80B and the third speed ring gear 96A are in the restricted state.

[0218] When the twelfth transmission path is selected from the plurality of transmission paths, the rotation states of the second speed ring gear 80B, the fourth speed ring gear 110A, the fifth speed ring gear 110B, the sixth speed ring gear 122A, and the seventh speed ring gear 134A are in the permitted state. When the twelfth transmission path is selected from the plurality of transmission paths, the rotation states of the first speed ring gear 80A and the third speed ring gear 96A are in the restricted state.

[0219] like Figures 12 to 17As shown, the restricted state and the permitted state of the speed gear ring 52D are selected by the rotation control unit 54. For example, the speed gear ring 52D has at least one engaged portion 52E. For example, at least one engaged portion 52E is provided on the outer periphery of the speed gear ring 52D. For example, at least one engaged portion 52E includes a plurality of engaged portions 52E. For example, the plurality of engaged portions 52E are arranged in a manner of being spaced apart on the outer periphery of the plurality of speed gear rings 52D around the rotation center axis C2 of the shaft member 22. For example, the engaged portion 52E includes a recessed portion or a convex portion.

[0220] For example, the control member 60 includes a contact portion 60A that contacts the cam portion 58 and an engagement portion 60B that engages with the engaged portion 52E. The contact portion 60A and the engagement portion 60B are formed integrally. For example, the engagement portion 60B includes a convex portion or a concave portion.

[0221] For example, the engagement portion 60B of the control member 60 is engaged with the engaged portion 52E of the speed ring gear 52D, so that the rotation control portion 54 restricts the rotation of the speed ring gear 52D. In this case, the speed ring gear 52D is in a restricted state. For example, by releasing the engagement between the engagement portion 60B of the control member 60 and the engaged portion 52E of the speed ring gear 52D, the rotation control portion 54 allows the rotation of the speed ring gear 52D. In this case, the speed ring gear 52D is in a permitted state.

[0222] For example, the engagement state of the engagement portion 60B and the engaged portion 52E and the contact state of the cam portion 58 and the contact portion 60A change in conjunction with each other. For example, the rotation control portion 54 switches the rotation state of the speed change ring gear 52D between the permitted state and the restricted state, thereby switching from one of the plurality of transmission paths to another of the plurality of transmission paths.

[0223] For example, the transmission 24 includes a first rotation control unit 138, a second rotation control unit 140, and a linkage mechanism 142. For example, at least one rotation control unit 54 includes the first rotation control unit 138 and the second rotation control unit 140.

[0224] For example, the first rotation control unit 138 includes a first camshaft 138A and controls the first speed change unit 66. For example, at least one camshaft 56 includes the first camshaft 138A. For example, the first rotation control unit 138 is configured to select one of the plurality of first speed ratios of the first speed change unit 66 according to the rotation of the first camshaft 138A. For example, the first rotation control unit 138 is configured to select one of the plurality of first speed ratios of the first speed change unit 66 by controlling the rotation state of the first ring gear 80 according to the rotation of the first camshaft 138A.

[0225] For example, the first rotation control unit 138 includes: a first cam portion 144 provided on the first cam shaft 138A so as to rotate integrally with the first cam shaft 138A; and a first control member 146 operating between the first cam portion 144 and the first ring gear 80. For example, the cam portion 58 includes the first cam portion 144. For example, the control member 60 includes the first control member 146.

[0226] For example, the first cam portion 144 and the first control member 146 are provided in each of the plurality of first ring gears 80. For example, the first rotation control unit 138 includes a first speed change cam portion 144A and a first speed change control member 146A corresponding to the first speed change ring gear 80A. For example, the first rotation control unit 138 includes a second speed change cam portion 144B and a second speed change control member 146B corresponding to the second speed change ring gear 80B.

[0227] For example, the first rotation control unit 138 restricts the rotation of the first ring gear 80 by engaging the first control member 146 with the first ring gear 80. For example, the first rotation control unit 138 restricts the rotation of the first ring gear 80 by engaging the engaging portion 60B of the first speed change control member 146A with the engaged portion 52E of the first speed change ring gear 80A. For example, the first rotation control unit 138 restricts the rotation of the second speed change ring gear 80B by engaging the engaging portion 60B of the second speed change control member 146B with the engaged portion 52E of the second speed change ring gear 80B.

[0228] For example, the first cam portion 144 includes a first cam surface 144C and a second cam surface 144D. For example, the first cam surface 144C is a surface whose height in the radial direction of the first cam shaft 138A is lower than that of the second cam surface 144D.

[0229] For example, when the first control member 146 contacts the first cam surface 144C, the first rotation control unit 138 restricts the rotation of the first ring gear 80. For example, when the contact portion 60A of the first speed change control member 146A contacts the first cam surface 144C of the first speed change cam portion 144A, the first rotation control unit 138 restricts the rotation of the first speed change ring gear 80A. For example, when the contact portion 60A of the second speed change control member 146B contacts the first cam surface 144C of the second speed change cam portion 144B, the first rotation control unit 138 restricts the rotation of the second speed change ring gear 80B.

[0230] For example, when the first control member 146 is in contact with the second cam surface 144D, the first rotation control portion 138 allows the rotation of the first ring gear 80. For example, when the contact portion 60A of the first shift control member 146A is in contact with the second cam surface 144D of the first shift cam portion 144A, the first rotation control portion 138 allows the rotation of the first shift ring gear 80A. For example, when the contact portion 60A of the second shift control member 146B is in contact with the second cam surface 144D of the second shift cam portion 144B, the first rotation control portion 138 allows the rotation of the second shift ring gear 80B.

[0231] For example, the second rotation control unit 140 includes a second camshaft 140A coaxially arranged with the first camshaft 138A, and controls the second speed change unit 68. For example, at least one camshaft 56 includes the second camshaft 140A. For example, the second rotation control unit 140 is configured to select one of the plurality of second speed ratios of the second speed change unit 68 according to the rotation of the second camshaft 140A. For example, the second rotation control unit 140 is configured to select one of the plurality of second speed ratios of the second speed change unit 68 by controlling the rotation state of the second ring gear 96 according to the rotation of the second camshaft 140A.

[0232] For example, the second rotation control unit 140 includes: a second cam portion 148 provided on the second cam shaft 140A so as to rotate integrally with the second cam shaft 140A; and a second control member 150 operating between the second cam portion 148 and the second ring gear 96. For example, the cam portion 58 includes the second cam portion 148. For example, the control member 60 includes the second control member 150.

[0233] For example, the second cam portion 148 and the second control member 150 are provided in each of the plurality of second ring gears 96. For example, the second rotation control portion 140 includes a third speed change cam portion 148A and a third speed change control member 150A corresponding to the third speed change ring gear 96A.

[0234] For example, the second rotation control unit 140 restricts the rotation of the second ring gear 96 by engaging the second control member 150 with the second ring gear 96. For example, the second rotation control unit 140 restricts the rotation of the third ring gear 96A by engaging the engaging portion 60B of the third speed change control member 150A with the engaged portion 52E of the third speed change ring gear 96A.

[0235] For example, the second cam portion 148 includes a third cam surface 148B and a fourth cam surface 148C. For example, the third cam surface 148B is a surface whose height in the radial direction of the second cam shaft 140A is lower than that of the fourth cam surface 148C.

[0236] For example, when the second control member 150 contacts the third cam surface 148B, the second rotation control unit 140 restricts the rotation of the second ring gear 96. For example, when the contact portion 60A of the third speed change control member 150A contacts the third cam surface 148B of the third speed change cam portion 148A, the second rotation control unit 140 restricts the rotation of the third speed change ring gear 96A.

[0237] For example, when the second control member 150 contacts the fourth cam surface 148C, the second rotation control portion 140 allows the rotation of the second ring gear 96. For example, when the contact portion 60A of the third speed change control member 150A contacts the fourth cam surface 148C of the third speed change cam portion 148A, the second rotation control portion 140 allows the rotation of the third speed change ring gear 96A.

[0238] For example, the first rotation control unit 138 is configured to select one of the plurality of first gear ratios by controlling the rotation state of the third ring gear 110 according to the rotation of the first camshaft 138A. For example, the first rotation control unit 138 includes: a third cam portion 152, which is provided on the first camshaft 138A in a manner that rotates integrally with the first camshaft 138A; and a third control member 154, which operates between the third cam portion 152 and the third ring gear 110. For example, the cam portion 58 includes the third cam portion 152. For example, the control member 60 includes the third control member 154.

[0239] For example, the third cam portion 152 and the third control member 154 are provided in each of the plurality of third gear rings 110. For example, the first rotation control unit 138 includes a fourth speed change cam portion 152A and a fourth speed change control member 154A corresponding to the fourth speed change gear ring 110A. For example, the first rotation control unit 138 includes a fifth speed change cam portion 152B and a fifth speed change control member 154B corresponding to the fifth speed change gear ring 110B.

[0240] For example, the third control member 154 is engaged with the third ring gear 110, so that the first rotation control unit 138 restricts the rotation of the third ring gear 110. For example, the engaging portion 60B of the fourth speed change control member 154A is engaged with the engaged portion 52E of the fourth speed change ring gear 110A, so that the first rotation control unit 138 restricts the rotation of the fourth speed change ring gear 110A. For example, the engaging portion 60B of the fifth speed change control member 154B is engaged with the engaged portion 52E of the fifth speed change ring gear 110B, so that the first rotation control unit 138 restricts the rotation of the fifth speed change ring gear 110B.

[0241] For example, the third cam portion 152 includes a fifth cam surface 152C and a sixth cam surface 152D. For example, the fifth cam surface 152C is a surface whose height in the radial direction of the first cam shaft 138A is lower than that of the sixth cam surface 152D.

[0242] For example, when the third control member 154 contacts the fifth cam surface 152C, the first rotation control unit 138 restricts the rotation of the third ring gear 110. For example, when the contact portion 60A of the fourth speed change control member 154A contacts the fifth cam surface 152C of the fourth speed change cam portion 152A, the first rotation control unit 138 restricts the rotation of the fourth speed change ring gear 110A. For example, when the contact portion 60A of the fifth speed change control member 154B contacts the fifth cam surface 152C of the fifth speed change cam portion 152B, the first rotation control unit 138 restricts the rotation of the fifth speed change ring gear 110B.

[0243] For example, when the third control member 154 is in contact with the sixth cam surface 152D, the first rotation control portion 138 allows the rotation of the third ring gear 110. For example, when the contact portion 60A of the fourth speed change control member 154A is in contact with the sixth cam surface 152D of the fourth speed change cam portion 152A, the first rotation control portion 138 allows the rotation of the fourth speed change ring gear 110A. For example, when the contact portion 60A of the fifth speed change control member 154B is in contact with the sixth cam surface 152D of the fifth speed change cam portion 152B, the first rotation control portion 138 allows the rotation of the fifth speed change ring gear 110B.

[0244] For example, the second rotation control unit 140 is configured to select one of the plurality of second gear ratios by controlling the rotation state of the fourth ring gear 122 according to the rotation of the second camshaft 140A. For example, the second rotation control unit 140 includes: a fourth cam portion 156, which is provided on the second camshaft 140A in a manner that rotates integrally with the second camshaft 140A; and a fourth control component 158, which operates between the fourth cam portion 156 and the fourth ring gear 122. For example, the cam portion 58 includes the fourth cam portion 156. For example, the control component 60 includes the fourth control component 158.

[0245] For example, the fourth cam portion 156 and the fourth control member 158 are provided in each of the plurality of fourth ring gears 122. For example, the second rotation control unit 140 includes a sixth speed change cam portion 156A and a sixth speed change control member 158A corresponding to the sixth speed change ring gear 122A.

[0246] For example, the second rotation control unit 140 restricts the rotation of the fourth ring gear 122 by engaging the fourth control member 158 with the fourth ring gear 122. For example, the second rotation control unit 140 restricts the rotation of the sixth speed change ring gear 122A by engaging the engaging portion 60B of the sixth speed change control member 158A with the engaged portion 52E of the sixth speed change ring gear 122A.

[0247] For example, the fourth cam portion 156 includes a seventh cam surface 156B and an eighth cam surface 156C. For example, the seventh cam surface 156B is a surface whose height in the radial direction of the second cam shaft 140A is lower than that of the eighth cam surface 156C.

[0248] For example, when the fourth control member 158 contacts the seventh cam surface 156B, the second rotation control unit 140 restricts the rotation of the fourth ring gear 122. For example, when the contact portion 60A of the sixth speed change control member 158A contacts the seventh cam surface 156B of the sixth speed change cam portion 156A, the second rotation control unit 140 restricts the rotation of the sixth speed change ring gear 122A.

[0249] For example, when the fourth control member 158 contacts the eighth cam surface 156C, the second rotation control portion 140 allows the rotation of the fourth ring gear 122. For example, when the contact portion 60A of the sixth speed change control member 158A contacts the eighth cam surface 156C of the sixth speed change cam portion 156A, the second rotation control portion 140 allows the rotation of the sixth speed change ring gear 122A.

[0250] For example, the second rotation control unit 140 is configured to select one of the plurality of second gear ratios by controlling the rotation state of the fifth gear ring 134 according to the rotation of the second camshaft 140A. For example, the second rotation control unit 140 includes: a fifth cam portion 160, which is provided on the second camshaft 140A in a manner that rotates integrally with the second camshaft 140A; and a fifth control member 162, which operates between the fifth cam portion 160 and the fifth gear ring 134. For example, the cam portion 58 includes the fifth cam portion 160. For example, the control member 60 includes the fifth control member 162.

[0251] For example, the fifth cam portion 160 and the fifth control member 162 are provided in each of the plurality of fifth ring gears 134. For example, the second rotation control portion 140 includes a seventh speed change cam portion 160A and a seventh speed change control member 162A corresponding to the seventh speed change ring gear 134A.

[0252] For example, the second rotation control unit 140 restricts the rotation of the fifth ring gear 134 by engaging the fifth control member 162 with the fifth ring gear 134. For example, the second rotation control unit 140 restricts the rotation of the seventh ring gear 134A by engaging the engaging portion 60B of the seventh speed change control member 162A with the engaged portion 52E of the seventh speed change ring gear 134A.

[0253] For example, the fifth cam portion 160 includes a ninth cam surface 160B and a tenth cam surface 160C. For example, the ninth cam surface 160B is a surface whose height in the radial direction of the second cam shaft 140A is lower than that of the tenth cam surface 160C.

[0254] For example, when the fifth control member 162 contacts the ninth cam surface 160B, the second rotation control unit 140 restricts the rotation of the fifth ring gear 134. For example, when the contact portion 60A of the seventh speed change control member 162A contacts the ninth cam surface 160B of the seventh speed change cam portion 160A, the second rotation control unit 140 restricts the rotation of the seventh speed change ring gear 134A.

[0255] For example, when the fifth control member 162 contacts the tenth cam surface 160C, the second rotation control portion 140 allows the rotation of the fifth ring gear 134. For example, when the contact portion 60A of the seventh speed change control member 162A contacts the tenth cam surface 160C of the seventh speed change cam portion 160A, the second rotation control portion 140 allows the rotation of the seventh speed change ring gear 134A.

[0256] For example, Fig.12 , Fig.13 ,as well as Fig.18 As shown, the transmission 24 further includes a driving unit 28, which includes: a driving shaft 62 that rotates the first camshaft 138A and the second camshaft 140A via a linkage mechanism 142; and a speed change motor 28A that rotates the driving shaft 62. For example, the linkage mechanism 142 links the first camshaft 138A and the second camshaft 140A. For example, the driving shaft 62 extends in parallel with the first camshaft 138A and the second camshaft 140A.

[0257] For example, the linkage mechanism 142 includes a first rotation transmission portion 164. For example, the first camshaft 138A is connected to the drive shaft 62 via the first rotation transmission portion 164 so as to rotate integrally. For example, the first rotation transmission portion 164 includes a spur gear. For example, the first rotation transmission portion 164 includes a first spur gear 164A and a second spur gear 164B. The pitch circle diameters of the first spur gear 164A and the second spur gear 164B are substantially equal. For example, the first spur gear 164A is provided on the drive shaft 62 so as to rotate integrally with the drive shaft 62. For example, the second spur gear 164B is provided on the first camshaft 138A so as to rotate integrally with the first camshaft 138A.

[0258] For example, the linkage mechanism 142 includes a second rotation transmission portion 168, which includes: a first linkage gear 168A; and a second linkage gear 168B meshing with the first linkage gear 168A. For example, the first linkage gear 168A is provided on the drive shaft 62 in a manner that rotates integrally with the drive shaft 62. For example, the second linkage gear 168B is provided on the second cam shaft 140A in a manner that rotates integrally with the second cam shaft 140A.

[0259] For example, the second rotation transmission part 168 switches the engagement state of the first interlocking gear 168A and the second interlocking gear 168B according to the rotation angle of the drive shaft 62. For example, one of the first interlocking gear 168A and the second interlocking gear 168B is a partial gear having teeth formed only on a portion of the circumference. For example, the other of the first interlocking gear 168A and the second interlocking gear 168B engages with one of the first interlocking gear 168A and the second interlocking gear 168B only at the portion of the teeth of the partial gear. For example, when the non-toothed portion of one of the first interlocking gear 168A and the second interlocking gear 168B, i.e., the partial gear, is opposite to the other of the first interlocking gear 168A and the second interlocking gear 168B, one of the first interlocking gear 168A and the second interlocking gear 168B rotates relative to the other of the first interlocking gear 168A and the second interlocking gear 168B.

[0260] For example, the second rotation transmission portion 168 is configured to transmit the rotation torque of the drive shaft 62 to the second camshaft 140A when the rotation angle of the drive shaft 62 is within a prescribed range, and not to transmit the rotation torque of the drive shaft 62 to the second camshaft 140A when the rotation angle of the drive shaft 62 is outside the prescribed range. For example, when the rotation angle of the drive shaft 62 is within the prescribed range, the teeth of the partial gear of one of the first interlocking gear 168A and the second interlocking gear 168B engage with the other of the first interlocking gear 168A and the second interlocking gear 168B. For example, when the rotation angle of the drive shaft 62 is outside the prescribed range, the non-tooth portion of the partial gear of one of the first interlocking gear 168A and the second interlocking gear 168B corresponds to the other of the first interlocking gear 168A and the second interlocking gear 168B.

[0261] For example, the linkage mechanism 142 is configured to interlock the first camshaft 138A and the second camshaft 140A to restrict the rotation of the first ring gear 80 and the second ring gear 96 regardless of the rotation phase of the drive shaft 62. For example, the linkage mechanism 142 is configured to interlock the first camshaft 138A and the second camshaft 140A to restrict the rotation of any one of the first ring gear 80, the second ring gear 96, the third ring gear 110, the fourth ring gear 122, and the fifth ring gear 134 regardless of the rotation phase of the drive shaft 62.

[0262] For example, the linkage mechanism 142 includes a control shaft 60C. For example, the control member 60 is supported on the control shaft 60C in a manner that it can rotate around the rotation axis of the control shaft 60C. For example, the linkage mechanism 142 includes a force application member 60D. For example, the force application member 60D applies force to the control member 60 around the rotation axis of the control shaft 60C so that the control member 60 contacts the cam portion 58. For example, the force application member 60D includes a torsion spring. For example, the force application member 60D may also include a coil spring.

[0263] For example, the linkage mechanism 142 includes a first control shaft 142A different from the first cam shaft 138A, the second cam shaft 140A, and the drive shaft 62. For example, the control shaft 60C includes the first control shaft 142A. For example, the first control member 146 is provided on the first control shaft 142A. For example, the third control member 154 is provided on the first control shaft 142A. For example, the first control member 146 and the third control member 154 are arranged on the first control shaft 142A in the axial direction A1.

[0264] For example, the linkage mechanism 142 includes a second control shaft 142B that is different from the first cam shaft 138A, the second cam shaft 140A, and the drive shaft 62. For example, the control shaft 60C includes the second control shaft 142B. For example, the second control member 150 is provided on the second control shaft 142B. For example, the fourth control member 158 is provided on the second control shaft 142B. For example, the fifth control member 162 is provided on the second control shaft 142B. For example, the second control member 150, the fourth control member 158, and the fifth control member 162 are arranged on the second control shaft 142B in the axial direction A1.

[0265] For example, the first control shaft 142A is spaced apart from the second control shaft 142B. For example, the first control shaft 142A extends in parallel with the second control shaft 142B. For example, the first control member 146 and the third control member 154 extend from the first control shaft 142A to the second control shaft 142B. For example, the second control member 150, the fourth control member 158, and the fifth control member 162 extend from the second control shaft 142B to the first control shaft 142A. The first control member 146 and the third control member 154 extend in a direction opposite to the direction in which the second control member 150, the fourth control member 158, and the fifth control member 162 extend.

[0266] For example, the driving unit 28 switches the rotation state of the speed change ring gear 52D between the restricted state and the permitted state and selects one of the plurality of transmission paths by rotating the driving shaft 62. For example, the driving unit 28 switches the rotation state of the speed change ring gear 52D between the restricted state and the permitted state and selects any one of the first to twelfth transmission paths while the driving shaft 62 rotates three times.

[0267] Fig.19 The diagram shows the switching of the rotation states of the first speed gear ring 80A, the second speed gear ring 80B, the fourth speed gear ring 110A, the fifth speed gear ring 110B, the nth speed gear ring, and the mth speed gear ring according to the rotation angle of the drive shaft 62. For example, n is a positive integer. For example, m is a positive integer. The nth speed gear ring and the mth speed gear ring correspond to one of the third speed gear ring 96A, the sixth speed gear ring 122A, and the seventh speed gear ring 134A, respectively, according to the rotation angle of the drive shaft 62. For example, when n is 7, m is 6. For example, when n is 6, m is 3. For example, when n is 3, m is 7.

[0268] Hereinafter, the rotation angle of the first rotation of the drive shaft 62 is expressed as 0 to 360 degrees, the rotation angle of the second rotation is expressed as 360 to 720 degrees, and the rotation angle of the third rotation is expressed as 720 to 1080 degrees. For example, Fig.19 0 degrees to 360 degrees corresponds to 360 degrees to 720 degrees and 720 degrees to 1080 degrees.

[0269] exist Fig.19 In the example shown, the first interlocking gear 168A is a partial gear. Fig.19 In the case where the rotation angle of the drive shaft 62 is 0 degrees, the partial gear of the first interlocking gear 168A is Fig.18 168A and the second interlocking gear 168B are released from engagement. For example, as the rotation angle of the drive shaft 62 increases, the drive shaft 62 rotates in a direction in which the partial gear of the first interlocking gear 168A is away from the second interlocking gear 168B. For example, when the rotation angle of the drive shaft 62 is greater than or equal to 277 degrees and less than or equal to 360 degrees, the partial gear of the first interlocking gear 168A is engaged with the second interlocking gear 168B. For example, when the rotation angle of the drive shaft 62 is greater than or equal to 637 degrees and less than or equal to 720 degrees, the partial gear of the first interlocking gear 168A is engaged with the second interlocking gear 168B.

[0270] When the rotation angle of the drive shaft 62 is greater than or equal to 0 degrees and less than or equal to 360 degrees, the nth speed gear ring corresponds to the seventh speed gear ring 134A, and the mth speed gear ring corresponds to the sixth speed gear ring 122A. When the rotation angle of the drive shaft 62 is greater than or equal to 0 degrees and less than or equal to 290 degrees, the rotation state of the sixth speed gear ring 122A is the permitted state, and the rotation state of the seventh speed gear ring 134A is the restricted state. When the rotation angle of the drive shaft 62 is greater than or equal to 0 degrees and less than or equal to 360 degrees, the rotation state of the third speed gear ring 96A is maintained in the permitted state.

[0271] When the rotation angle of the drive shaft 62 is the first rotation angle, the rotation state of the fifth speed ring gear 110B is the restricted state, and the rotation states of the first speed ring gear 80A, the second speed ring gear 80B, and the fourth speed ring gear 110A are the permitted states. Therefore, when the rotation angle of the drive shaft 62 is the first rotation angle, the first transmission path is selected from the plurality of transmission paths. For example, the first rotation angle is greater than or equal to 0 degrees and less than or equal to 12 degrees.

[0272] When the rotation angle of the drive shaft 62 is the second rotation angle, the rotation state of the fourth speed ring gear 110A is the restricted state, and the rotation states of the first speed ring gear 80A, the second speed ring gear 80B, and the fifth speed ring gear 110B are the permitted states. Therefore, when the rotation angle of the drive shaft 62 is the second rotation angle, the second transmission path is selected from the plurality of transmission paths. For example, the second rotation angle is greater than or equal to 82 degrees and less than or equal to 93 degrees.

[0273] When the rotation angle of the drive shaft 62 is the third rotation angle, the rotation state of the second speed ring gear 80B is the restricted state, and the rotation states of the first speed ring gear 80A, the fourth speed ring gear 110A, and the fifth speed ring gear 110B are the permitted states. Therefore, when the rotation angle of the drive shaft 62 is the third rotation angle, the third transmission path is selected from the plurality of transmission paths. For example, the third rotation angle is greater than or equal to 163 degrees and less than or equal to 174 degrees.

[0274] When the rotation angle of the drive shaft 62 is the fourth rotation angle, the rotation state of the first speed gear ring 80A is the restricted state, and the rotation states of the second speed gear ring 80B, the fourth speed gear ring 110A, and the fifth speed gear ring 110B are the permitted states. Therefore, when the rotation angle of the drive shaft 62 is the fourth rotation angle, the fourth transmission path is selected from the plurality of transmission paths. For example, the fourth rotation angle is greater than or equal to 244 degrees and less than or equal to 255 degrees.

[0275] When the rotation angle of the drive shaft 62 is greater than or equal to 360 degrees and less than or equal to 720 degrees, the nth speed gear ring corresponds to the sixth speed gear ring 122A, and the mth speed gear ring corresponds to the third speed gear ring 96A. When the rotation angle of the drive shaft 62 is greater than or equal to 360 degrees and less than or equal to 650 degrees, the rotation state of the third speed gear ring 96A is the allowed state, and the rotation state of the sixth speed gear ring 122A is the restricted state. When the rotation angle of the drive shaft 62 is greater than or equal to 360 degrees and less than or equal to 720 degrees, the rotation state of the seventh speed gear ring 134A is maintained in the allowed state.

[0276] When the rotation angle of the drive shaft 62 is the fifth rotation angle, the rotation state of the fifth speed ring gear 110B is the restricted state, and the rotation states of the first speed ring gear 80A, the second speed ring gear 80B, and the fourth speed ring gear 110A are the permitted states. Therefore, when the rotation angle of the drive shaft 62 is the fifth rotation angle, the fifth transmission path is selected from the plurality of transmission paths. For example, the fifth rotation angle is greater than or equal to 360 degrees and less than or equal to 372 degrees.

[0277] When the rotation angle of the drive shaft 62 is the sixth rotation angle, the rotation state of the fourth speed ring gear 110A is the restricted state, and the rotation states of the first speed ring gear 80A, the second speed ring gear 80B, and the fifth speed ring gear 110B are the permitted states. Therefore, when the rotation angle of the drive shaft 62 is the sixth rotation angle, the sixth transmission path is selected from the plurality of transmission paths. For example, the sixth rotation angle is greater than or equal to 442 degrees and less than or equal to 453 degrees.

[0278] When the rotation angle of the drive shaft 62 is the seventh rotation angle, the rotation state of the second speed ring gear 80B is the restricted state, and the rotation states of the first speed ring gear 80A, the fourth speed ring gear 110A, and the fifth speed ring gear 110B are the permitted states. Therefore, when the rotation angle of the drive shaft 62 is the seventh rotation angle, the seventh transmission path is selected from the plurality of transmission paths. For example, the seventh rotation angle is greater than or equal to 523 degrees and less than or equal to 534 degrees.

[0279] When the rotation angle of the drive shaft 62 is the eighth rotation angle, the rotation state of the first speed gear ring 80A is the restricted state, and the rotation states of the second speed gear ring 80B, the fourth speed gear ring 110A, and the fifth speed gear ring 110B are the permitted states. Therefore, when the rotation angle of the drive shaft 62 is the eighth rotation angle, the eighth transmission path is selected from the plurality of transmission paths. For example, the eighth rotation angle is greater than or equal to 604 degrees and less than or equal to 615 degrees.

[0280] When the rotation angle of the drive shaft 62 is greater than or equal to 720 degrees and less than or equal to 1080 degrees, the nth speed gear ring corresponds to the third speed gear ring 96A, and the mth speed gear ring corresponds to the seventh speed gear ring 134A. When the rotation angle of the drive shaft 62 is greater than or equal to 720 degrees and less than or equal to 1010 degrees, the rotation state of the seventh speed gear ring 134A is the permitted state, and the rotation state of the third speed gear ring 96A is the restricted state. When the rotation angle of the drive shaft 62 is greater than or equal to 720 degrees and less than or equal to 1080 degrees, the rotation state of the sixth speed gear ring 122A is maintained in the permitted state.

[0281] When the rotation angle of the drive shaft 62 is the ninth rotation angle, the rotation state of the fifth speed ring gear 110B is the restricted state, and the rotation states of the first speed ring gear 80A, the second speed ring gear 80B, and the fourth speed ring gear 110A are the permitted states. Therefore, when the rotation angle of the drive shaft 62 is the ninth rotation angle, the ninth transmission path is selected from the plurality of transmission paths. For example, the ninth rotation angle is greater than or equal to 720 degrees and less than or equal to 732 degrees.

[0282] When the rotation angle of the drive shaft 62 is the tenth rotation angle, the rotation state of the fourth speed ring gear 110A is the restricted state, and the rotation states of the first speed ring gear 80A, the second speed ring gear 80B, and the fifth speed ring gear 110B are the permitted states. Therefore, when the rotation angle of the drive shaft 62 is the tenth rotation angle, the tenth transmission path is selected from the plurality of transmission paths. For example, the tenth rotation angle is greater than or equal to 802 degrees and less than or equal to 813 degrees.

[0283] When the rotation angle of the drive shaft 62 is the eleventh rotation angle, the rotation state of the second speed ring gear 80B is the restricted state, and the rotation states of the first speed ring gear 80A, the fourth speed ring gear 110A, and the fifth speed ring gear 110B are the permitted states. Therefore, when the rotation angle of the drive shaft 62 is the eleventh rotation angle, the eleventh transmission path is selected from the plurality of transmission paths. For example, the eleventh rotation angle is greater than or equal to 883 degrees and less than or equal to 894 degrees.

[0284] When the rotation angle of the drive shaft 62 is the twelfth rotation angle, the rotation state of the first speed gear ring 80A is the restricted state, and the rotation states of the second speed gear ring 80B, the fourth speed gear ring 110A, and the fifth speed gear ring 110B are the permitted states. Therefore, when the rotation angle of the drive shaft 62 is the twelfth rotation angle, the twelfth transmission path is selected from the plurality of transmission paths. For example, the twelfth rotation angle is greater than or equal to 964 degrees and less than or equal to 975 degrees.

[0285] For example, the plurality of first speed ratios include a first prescribed speed ratio and a second prescribed speed ratio that is the second largest than the first prescribed speed ratio. For example, the first speed change portion 66 has a first speed gradient. For example, the first speed gradient is the ratio of the second prescribed speed ratio to the first prescribed speed ratio. For example, in the case where the plurality of first speed ratios include two first speed ratios, the first speed change portion 66 has one first speed gradient. For example, in the case where the plurality of first speed ratios include three or more first speed ratios, the first speed change portion 66 has a plurality of first speed gradients.

[0286] For example, multiple first speed ratios are all greater than or equal to 1. Multiple first speed ratios may all be less than 1. For example, multiple first speed ratios are greater than or equal to 1 and less than or equal to 10. For example, multiple first speed ratios are greater than or equal to 2 and less than or equal to 6. For example, the first speed gradient is greater than 1.0 and less than or equal to 1.3. For example, the difference between the maximum value and the minimum value of the first speed gradient is greater than or equal to 0.01 and less than or equal to 0.02. For example, the difference between the maximum value and the minimum value of the first speed gradient may be greater than or equal to 0.011 and less than or equal to 0.012.

[0287] For example, the plurality of second speed ratios include a third prescribed speed ratio and a fourth prescribed speed ratio that is the second largest compared to the third prescribed speed ratio. For example, the second speed change portion 68 has a second speed gradient. For example, the second speed gradient is the ratio of the fourth prescribed speed ratio to the third prescribed speed ratio. For example, in the case where the plurality of second speed ratios include two second speed ratios, the second speed change portion 68 has a first speed gradient. For example, in the case where the plurality of second speed ratios include three or more second speed ratios, the second speed change portion 68 has a plurality of second speed gradients.

[0288] For example, multiple second speed ratios are all less than or equal to 1. For example, multiple second speed ratios can all be greater than 1. For example, multiple second speed ratios are greater than 0 and less than or equal to 1. For example, multiple second speed ratios are greater than or equal to 0.1 and less than or equal to 0.6. For example, the second speed gradient is greater than or equal to 1.8 and less than or equal to 2.1. For example, the difference between the maximum value and the minimum value of the second speed gradient is greater than or equal to 0.06 and less than or equal to 0.07. For example, the difference between the maximum value and the minimum value of the second speed gradient can be greater than or equal to 0.014 and less than or equal to 0.015.

[0289] For example, the first speed gradient is smaller than the second speed gradient. For example, when the first speed change portion 66 includes a plurality of first speed gradients, and the second speed change portion 68 includes a plurality of second speed gradients, each of the plurality of first speed gradients is smaller than each of the plurality of second speed gradients. When the first speed change portion 66 includes a plurality of first speed gradients, and the second speed change portion 68 includes a plurality of second speed gradients, at least one of the plurality of first speed gradients may be smaller than at least one of the plurality of second speed gradients.

[0290] In the case where the first speed change section 66 includes a plurality of first speed change gradients, and the second speed change section 68 includes a second speed change gradient, at least one of the plurality of first speed change gradients may be smaller than the second speed change gradient. In the case where the first speed change section 66 includes a plurality of first speed change gradients, and the second speed change section 68 includes a second speed change gradient, each of the plurality of first speed change gradients may be smaller than the second speed change gradient. In the case where the first speed change section 66 includes a first speed change gradient, and the second speed change section 68 includes a plurality of second speed change gradients, the first speed change gradient may be smaller than at least one of the plurality of second speed change gradients. In the case where the first speed change section 66 includes a first speed change gradient, and the second speed change section 68 includes a plurality of second speed change gradients, each of the plurality of first speed change gradients may be smaller than each of the plurality of second speed change gradients.

[0291] In the present embodiment, the plurality of first speed ratios include four first speed ratios, and the plurality of second speed ratios include three second speed ratios. Table 2 shows the first speed ratios and the first speed gradients in the present embodiment. Table 3 shows the second speed ratios and the second speed gradients in the present embodiment. In Table 2, the difference between the maximum value and the minimum value of the first speed gradient is, for example, 0.013. In Table 3, the difference between the maximum value and the minimum value of the second speed gradient is, for example, 0.066.

[0292] (Table 2)

[0293]

[0294] (Table 3)

[0295]

[0296] <Second embodiment>

[0297] Reference Figure 20 to Figure 23 , the assembly 20 and the transmission 24 of the second embodiment will be described. In the assembly 20 and the transmission 24 of the second embodiment, the same reference numerals as those of the first embodiment are attached to the common structures of the assembly 20 and the transmission 24 of the first embodiment, and the repeated description is omitted.

[0298] For example, the assembly 20 for the human-powered vehicle of the second embodiment includes a transmission 24 and a drive motor 170. For example, the assembly 20 for the human-powered vehicle includes a crankshaft support portion 40, a power transmission portion 42, and an output rotary shaft 34.

[0299] For example, the drive motor 170 is configured to impart propulsion to the human-powered vehicle. For example, the drive motor 170 is an auxiliary motor. For example, the drive motor 170 has a drive motor rotating shaft 170A. For example, the drive motor rotating shaft 170A extends in parallel with the crankshaft 10, the shaft member 22, and the output rotating shaft 34. For example, the drive motor rotating shaft 170A is arranged at a distance from the shaft member 22 and the output rotating shaft 34. The drive motor rotating shaft 170A can be arranged coaxially with the crankshaft 10.

[0300] For example, Fig.23 As shown, the drive motor 170 is arranged to overlap at least a portion of the transmission 24 when viewed from a direction B1 orthogonal to the crankshaft 10 and the shaft member 22 .

[0301] For example, Fig. 22As shown, the assembly 20 further includes a force combining portion 172. For example, the drive motor 170 is configured to transmit the driving force output from the drive motor 170, that is, the motor driving force, to the force combining portion 172, and the force combining portion 172 is provided between the power transmission portion 42 and the transmission 24 on the transmission path of the human driving force. For example, the motor driving force combines with the human driving force at the force combining portion 172.

[0302] For example, the combined force portion 172 includes at least one of the power transmission input portion 44M and the first input rotating body 66A. For example, when the combined force portion 172 includes the power transmission input portion 44M, the power transmission input portion 44M is configured to provide a rotational torque input for the drive motor 170. For example, the motor driving force is combined with the human driving force at the power transmission input portion 44M. For example, when the combined force portion 172 includes the first input rotating body 66A, the first input rotating body 66A is configured to provide a rotational torque input for the drive motor 170. For example, the motor driving force is combined with the human driving force at the first input rotating body 66A.

[0303] For example, the assembly 20 further includes a drive motor reducer 170B. For example, the motor driving force is input from the drive motor 170 to the drive motor reducer 170B. For example, the drive motor reducer 170B outputs the motor driving force input from the drive motor 170 to the combined force portion 172. For example, the drive motor reducer 170B connects the drive motor rotating shaft 170A with the combined force portion 172.

[0304] For example, the drive motor reducer 170B includes at least one of a gear, a pulley, and an endless annular component. For example, the drive motor reducer 170B includes a plurality of gears meshing with each other. For example, the endless annular component includes at least one of a chain and a belt. For example, in the case where the drive motor reducer 170B includes a gear and an endless annular component, the endless annular component includes a chain. For example, in the case where the drive motor reducer 170B includes a pulley and an endless annular component, the endless annular component includes a belt. The drive motor reducer 170B may include a planetary gear mechanism.

[0305] For example, the assembly 20 is a transmission unit, wherein the crankshaft 10 , the transmission 24 , the power transmission unit 42 , and the drive motor 170 are disposed in the housing 38 .

[0306] For example, the assembly 20 further includes a third one-way clutch. For example, the third one-way clutch is provided between the drive motor 170 and the combined force portion 172 on the transmission path of the motor driving force. For example, the third one-way clutch transmits the rotational force of the drive motor 170 to the combined force portion 172, and limits the human driving force so that the rotational force of the combined force portion 172 is transmitted to the drive motor 170. For example, the third one-way clutch includes at least one of a roller clutch, a dog clutch, and a sprag clutch.

[0307] For example, the transmission unit includes a drive motor control device configured to control the drive motor 170. For example, the drive motor control device is housed in the housing 38. For example, the drive motor control device includes an arithmetic processing device that executes a preset control program. The arithmetic processing device includes, for example, a CPU or an MPU. The arithmetic processing device can be set in a plurality of places separated from each other. The second control unit may include one or more microcomputers. For example, the second control unit also includes an inverter circuit. The inverter circuit is electrically connected to the arithmetic processing device and the drive motor 170. The drive motor control device may include an arithmetic processing device common to the control device 30A.

[0308] For example, the drive motor control device includes a second storage unit. The second storage unit stores various control programs and information for various control processes. The storage unit includes, for example, at least one of a non-volatile memory and a volatile memory. For example, the non-volatile memory includes at least one of a ROM, an EPROM, an EEPROM, and a flash memory. For example, the volatile memory includes a RAM. The second storage unit may include a memory common to the first storage unit.

[0309] <Modification>

[0310] The descriptions related to each embodiment are examples of the methods that can be adopted by the components for human-powered vehicles and the transmission for human-powered vehicles according to the present disclosure, and are not intended to limit the methods. For example, the components for human-powered vehicles and the transmission for human-powered vehicles according to the present disclosure can adopt the modified examples of the embodiments shown below, and the methods formed by combining at least two modified examples that do not contradict each other. In the following modified examples, for the parts common to each embodiment, the same symbols as those of each embodiment are added and their descriptions are omitted.

[0311] ·like Fig.24As shown, the transmission 24 may be configured to change the speed ratio by pulling the cable 174. In this modification, the transmission 24 may not include the speed change motor 28A. In this modification, for example, the human-powered vehicle includes a cable operating device 176 that rotates the drive shaft 62. In this modification, for example, the drive unit 28 includes a cable mounting portion 178. For example, the cable mounting portion 178 is connected to the cable operating device 176 via the cable 174. For example, the cable mounting portion 178 is mounted on the drive shaft 62. For example, the cable operating device 176 is provided on the handlebar of the human-powered vehicle. The pulling amount of the cable 174 changes by the rider operating the cable operating device 176. The rotation angle of the drive shaft 62 changes according to the pulling amount of the cable 174. For example, the pulling amount of the cable 174 is maintained by a cable positioning mechanism. For example, the cable positioning mechanism is provided on the cable operating device 176 or the cable mounting portion 178. For example, the cable positioning mechanism includes a ratchet.

[0312] At least one of the minimum speed ratio and the maximum speed ratio of the transmission 24 can be changed as appropriate. The minimum speed ratio of the transmission 24 may be greater than 1. The maximum speed ratio of the transmission 24 may be less than or equal to 1.

[0313] The transmission 24 may omit the first speed change portion 66 and the second speed change portion 68. The transmission 24 may include three or more speed change portions 50.

[0314] The transmission 24 may include a transmission unit having a transmission mechanism different from the planetary gear mechanism instead of the transmission unit 50, or may include a transmission unit having a transmission mechanism different from the planetary gear mechanism in addition to the transmission unit 50. For example, the transmission 24 may include a transmission unit having a manual transmission including a clutch, or may include a transmission unit having a continuously variable transmission.

[0315] ·Component 20 can be arranged on the axle of the wheel of the human-powered vehicle. In this modification, for example, component 20 is arranged on the wheel axle of the drive wheel. For example, the drive wheel includes a rear wheel. For example, the shaft component 22 includes a hub shaft. For example, the input rotating body 32 is not arranged on the shell 38. For example, the output rotating body 36 includes a hub shell. For example, the output rotating shaft 34 is formed integrally with the output rotating body 36. For example, the hub shell is formed integrally with the shell 38. The hub shell can be configured to be formed separately from the shell 38 and rotate integrally. For example, component 20 is arranged on the rear hub of the rear wheel.

[0316] The drive motor speed reducer 170B may be omitted. For example, when the drive motor speed reducer 170B is omitted, the motor driving force of the drive motor 170 is directly input to the power transmission input portion 44M or the first input rotating body 66A.

[0317] The transmission 24 for a human-powered vehicle that can be changed to a plurality of different speed ratios includes: a first speed change portion 66 that inputs a driving force from an input rotating body 32 to which a human-powered driving force is input; and a second speed change portion 68 that inputs a driving force from the first speed change portion 66, wherein the first speed change portion 66 is configured to include a first input rotating body 66A and a first output rotating body 66B, and the ratio of the rotation speed of the first output rotating body 66B to the rotation speed of the first input rotating body 66A can be selected from a plurality of first speed ratios, and the second speed change portion 68 is configured to include a second input rotating body 68A and a second output rotating body 68B, and the ratio of the rotation speed of the second output rotating body 68B to the rotation speed of the second output rotating body 68B can be selected from a plurality of second speed ratios. The ratio of the rotational speed of the input rotating body 68A, multiple first speed ratios are greater than or equal to 1, multiple second speed ratios are less than or equal to 1, the first speed change part 66 has a first speed gradient, the second speed change part 68 has a second speed gradient, multiple first speed ratios include a first prescribed speed ratio and a second prescribed speed ratio which is the second largest compared to the first prescribed speed ratio, the first speed gradient is the ratio of the second prescribed speed ratio relative to the first prescribed speed ratio, multiple second speed ratios include a third prescribed speed ratio and a fourth prescribed speed ratio which is the second largest compared to the third prescribed speed ratio, the second speed gradient is the ratio of the fourth prescribed speed ratio relative to the third prescribed speed ratio, the first speed gradient is smaller than the second speed gradient, and the structure other than the above can be omitted.

[0318] As long as the transmission 24 for a human-driven vehicle that can be changed to a plurality of different speed ratios includes: a first speed change section 66 having a first planetary gear unit 74; a second speed change section 68 having a second planetary gear unit 90; a first rotation control section 138 including a first camshaft 138A and controlling the first speed change section 66; a second rotation control section 140 including a second camshaft 140A coaxially arranged with the first camshaft 138A and controlling the second speed change section 68; and a linkage mechanism 142 that links the first camshaft 138A and the second camshaft 140A, the first rotation control section 138 is configured to select one of a plurality of first speed ratios of the first speed change section 66 according to the rotation of the first camshaft 138A, and the second rotation control section 140 is configured to select one of a plurality of second speed ratios of the second speed change section 68 according to the rotation of the second camshaft 140A, then the structures other than the above can be omitted.

[0319] As long as the component 20 for a human-powered vehicle includes: a shaft member 22; a transmission 24: which is arranged on the shaft member 22 and can be changed to a plurality of different speed ratios; a control unit 26, which controls the transmission 24 to change the speed ratio in stages; and a drive unit 30, which includes a drive unit 28 for driving the control unit 26, and the drive unit 30 is configured so that when viewed from the axial direction A1 of the shaft member 22, at least a portion of the drive unit 30 overlaps with at least a portion of the transmission 24, then the structure other than the above-mentioned can be omitted.

[0320] As long as the component 20 for the human-powered vehicle includes: a crankshaft support portion 40, which supports the crankshaft 10 for inputting human-powered driving force; a shaft member 22, which extends in parallel with the crankshaft 10; a transmission 24, which is provided on the shaft member 22 and can be changed to a plurality of different speed ratios; a control portion 26, which controls the transmission 24 to change the speed ratio in stages; a drive unit 30, which includes a drive portion for driving the control portion 26; and a power transmission portion 42, which connects the crankshaft 10 with the transmission 24, the power transmission portion 42 being configured to change the ratio of the rotation speed of the speed input rotating body 24A of the transmission 24 to the rotation speed of the crankshaft 10 to a predetermined ratio, and the drive unit 30 is configured so that when viewed from a direction B1 orthogonal to the crankshaft 10 and the shaft member 22, at least a portion of the drive unit 30 overlaps with at least a portion of the power transmission portion 42, then the structure other than the above-mentioned can be omitted.

[0321] As long as the component 20 for the human-powered vehicle includes: a crankshaft support portion 40, which supports the crankshaft 10 for inputting human-powered driving force; a transmission 24, which can be changed to a plurality of different speed ratios; a power transmission portion 42, which connects the crankshaft 10 and the transmission 24; an output rotating shaft 34, which is arranged at a distance from the crankshaft 10 and outputs the driving force input from the transmission 24; and a drive motor 170, which is configured to impart propulsion force to the human-powered vehicle, the power transmission portion 42 is configured to change the ratio of the rotation speed of the speed input rotating body 24A of the transmission 24 to the rotation speed of the crankshaft 10 to a predetermined ratio, and the drive motor 170 is configured to transmit the driving force output from the drive motor 170, i.e., the motor driving force, to a combined force portion 172, which is provided between the power transmission portion 42 and the transmission 24 on the transmission path of the human-powered driving force, then the structure other than the above-mentioned can be omitted.

[0322] In the second embodiment, the predetermined ratio may be less than or equal to 1. The drive motor 170 of the second embodiment applies the motor driving force to the resultant force portion 172 to which the drive force input before the transmission 24 performs the gear shift. Therefore, the motor control device can drive the drive motor 170 without considering the change of the gear ratio by the transmission 24. Therefore, in this modified example, the drive motor 170 can also appropriately give the propulsion force to the human-powered vehicle.

[0323] The expression "at least one" used in this specification refers to "more than one" of the desired options. As an example, if the number of options is two, the expression "at least one" used in this specification refers to "only one option" or "both of the two options". As another example, if the number of options is three or more, the expression "at least one" used in this specification refers to "only one option" or "a combination of any two or more options".

[0324] Ordinal numbers such as “first, second, and third” used in this specification are merely used to distinguish between multiple components with the same name and have no special meaning.

[0325] Explanation of symbols:

[0326] 10…crankshaft, 14…transmission component, 20…assembly, 22…shaft component, 24…transmission, 24A…speed-change input rotating body, 34…output rotating shaft, 38…housing, 40…crankshaft supporting portion, 42…power transmission portion, 44…power transmission planetary gear unit, 44D…power transmission gear frame, 48…torque sensor, 170…drive motor, 170A…drive motor rotating shaft, 172…force combining portion.

Claims

1. A component, which is a component for a human-powered vehicle and comprises: A crankshaft support portion, which supports a crankshaft for inputting human driving force; A transmission capable of changing to a plurality of different speed ratios; a power transmission unit connecting the crankshaft with the transmission; an output rotating shaft which is arranged at a distance from the crankshaft and outputs a driving force input from the transmission; as well as a drive motor configured to impart propulsion force to the human-powered vehicle, The power transmission unit is configured to change the ratio of the rotation speed of the speed change input rotating body of the transmission to the rotation speed of the crankshaft to a predetermined ratio, The drive motor is configured to transmit the motor drive force, which is the drive force output from the drive motor, to a force combining portion provided between the power transmission portion and the transmission on a transmission path of the human drive force.

2. The assembly according to claim 1, wherein The prescribed ratio is greater than 1.

3. The assembly according to claim 1, wherein: The power transmission unit changes the rotation speed of the crankshaft in two or more stages, and changes the ratio of the rotation speed of the speed change input rotating body of the transmission to the rotation speed of the crankshaft to the predetermined ratio.

4. The assembly according to claim 1, wherein: A shaft member is further provided, which is arranged at a distance from the crank shaft. The shaft member is arranged coaxially with the output rotating shaft.

5. The assembly according to claim 4, wherein: The shaft member and the output rotating shaft extend in parallel with the crankshaft.

6. The assembly according to claim 5, wherein: The drive motor has a drive motor rotating shaft, The drive motor rotation shaft extends in parallel with the crank shaft, the shaft member, and the output rotation shaft.

7. The assembly according to claim 6, wherein: The driving motor rotation shaft is coaxially arranged with the crank shaft.

8. The assembly according to claim 6, wherein: The drive motor rotating shaft is arranged at a distance from the shaft member and the output rotating shaft.

9. The assembly according to claim 7, wherein: The drive motor is arranged so as to overlap with at least a portion of the transmission when viewed from a direction perpendicular to the crankshaft and the shaft member.

10. The assembly of claim 4, wherein: The output rotating shaft has a diameter larger than the shaft member. The crankshaft has a diameter larger than a diameter of the output rotation shaft.

11. The assembly according to claim 4, wherein: The power transmission part includes at least one power transmission planetary gear unit, The at least one power transmission planetary gear unit is configured to be rotatable about a rotation center axis of the shaft member.

12. The assembly according to claim 11, wherein It also has a torque sensor. The at least one power transmission planetary gear unit comprises a power transmission gear carrier, The torque sensor is arranged on the power transmission gear frame.

13. The assembly of claim 1, wherein: It also includes a housing that can be mounted on a frame of the human-powered vehicle. The crankshaft, the transmission, the power transmission unit, and the drive motor are disposed in the housing. In a state where the housing is attached to the vehicle frame, the driving force output from the transmission is transmitted to the driving wheels of the human-powered vehicle via the transmission member.

Images