Battery retention device for human-powered vehicles

Abstract

[The technical problem to be solved] The present invention provides a battery holding device for a human-powered vehicle, which allows a battery unit to be properly installed in the human-powered vehicle by being disposed in the human-powered vehicle; a starting unit for a human-powered vehicle, which allows a battery unit to be properly installed in the human-powered vehicle by being disposed in the human-powered vehicle; and a battery unit for a human-powered vehicle, which can be properly installed in the human-powered vehicle. Technical means to solve the problem The battery holding device of the present invention is a battery holding device formed separately from the frame of the human-powered vehicle, and includes: a battery mounting part, which detachably mounts the battery unit by means of a screw component; and at least one starting unit connecting part, which is connected to a starting unit that rotatably supports the crankshaft of the aforementioned human-powered vehicle.

Description

Technical Field

[0001] This invention relates to a battery holding device for a human-powered vehicle, a starting unit for a human-powered vehicle, and a battery unit for a human-powered vehicle. Prior Technology

[0002] For example, the battery cell for a human-powered vehicle disclosed in Patent Document 1 is mounted on the frame of the human-powered vehicle. [Previous Technical Documents] [Patent Literature]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2018-6144 Summary of the Invention

[0004] [The problem the invention aims to solve]

[0005] One object of the present invention is to provide a battery holding device for a human-powered vehicle, which, by being disposed in a human-powered vehicle, can properly install a battery cell in the human-powered vehicle; a starting unit for a human-powered vehicle, which, by being disposed in a human-powered vehicle, can properly install a battery cell in the human-powered vehicle; and a battery cell for a human-powered vehicle, which can be properly installed in the human-powered vehicle. [Solutions]

[0006] According to the first aspect of this disclosure, the battery holding device is a battery holding device separately formed from the frame of the human-powered vehicle, and includes: a battery mounting part, which detachably mounts the battery unit by means of a screw member; and at least one starting unit connection part, which is connected to a starting unit that rotatably supports the crankshaft of the aforementioned human-powered vehicle. When using the battery holding device of the first aspect, the battery unit can be detachably installed in the battery mounting section by means of screw components. By installing the battery holding device of the first aspect in a human-powered vehicle, the battery unit can be properly installed in the human-powered vehicle.

[0007] In the battery holding device according to the second aspect of the first aspect of this disclosure, the aforementioned battery mounting portion and the aforementioned at least one starting unit connection portion are integrally formed with the housing of the aforementioned starting unit. When the battery holding device of the second aspect is adopted, the number of parts can be reduced compared with forming separate housings for the battery holding device and the starting unit.

[0008] The battery holding device according to the first or second aspect of this disclosure further includes at least one guide portion, which guides the battery unit in a predetermined direction when the battery unit is loaded or unloaded from the battery mounting portion. When a third-party battery holding device is used, the battery cell can be guided in a predetermined direction by at least one guide.

[0009] In the battery holding device according to any of the first to third aspects of this disclosure, the aforementioned screw component includes at least one bolt and a nut, and the aforementioned battery mounting portion includes at least one of the following elements: a female thread portion configured for connection of the aforementioned bolt; a male thread portion configured for connection of the aforementioned nut; and a through hole configured for passage of a portion of the aforementioned bolt. When the fourth aspect of the battery holding device is adopted, the battery unit can be installed in the battery mounting part by means of at least one of the screw component and the female thread, the male thread and the through hole.

[0010] According to the fifth aspect of the third aspect of this disclosure, in the battery holding device, the aforementioned screw component includes at least one bolt and a nut, and the aforementioned battery mounting portion includes at least one of the following elements: a female thread portion configured for connection to the aforementioned bolt; a male thread portion configured for connection to the aforementioned nut; and a through hole configured for a portion of the aforementioned bolt to pass through; the aforementioned female thread portion, the aforementioned male thread portion, and the aforementioned through hole extend in a direction substantially parallel to the aforementioned predetermined direction. When the battery holding device of the fifth aspect is adopted, the battery unit can be installed in the battery mounting part by means of a screw member and at least one of a female thread, a male thread, and a through hole extending in a direction substantially parallel to the aforementioned predetermined direction.

[0011] In the battery holding device according to the third or fifth aspect of this disclosure, the aforementioned predetermined direction is not parallel to the axial direction of the aforementioned crankshaft when the aforementioned at least one starting unit connection portion is connected to the aforementioned starting unit. When the battery holding device of the sixth aspect is adopted, at least one guide can guide the battery cell in a direction that is not parallel to the axial direction of the crankshaft.

[0012] In the battery holding device according to the sixth and seventh aspects of this disclosure, the aforementioned predetermined direction is a direction substantially orthogonal to the axial direction parallel to the crankshaft, in the state where the aforementioned at least one starting unit connection portion is connected to the aforementioned starting unit. When the battery holding device of the seventh aspect is adopted, at least one guide can guide the battery cell in a direction substantially orthogonal to the axial direction parallel to the crankshaft.

[0013] In the battery holding device according to any of the third and fifth to seventh aspects of this disclosure, the aforementioned battery mounting portion is configured such that the length direction of the aforementioned battery cell is substantially parallel to the aforementioned predetermined direction, in order to mount the aforementioned battery cell. When the battery holding device of the eighth aspect is adopted, the battery unit can be installed in the battery mounting part in a state in which the length direction of the battery unit is substantially parallel to the predetermined direction.

[0014] In the battery holding device of any of the third and fifth to eighth aspects of this disclosure, the aforementioned predetermined direction is substantially parallel to the extending direction of the down tube or seat tube of the aforementioned vehicle frame when the aforementioned at least one starting unit connection is provided on the aforementioned starting unit and the aforementioned starting unit is provided in the state of the aforementioned manually driven vehicle. When the battery holding device of the ninth aspect is adopted, with at least one starting unit connection provided in the starting unit and the starting unit being in the state of being manually driven, at least one guide can guide the battery unit in a direction substantially parallel to the extension direction of the frame downtube or seat tube of the frame.

[0015] The battery holding device according to the tenth aspect of this disclosure is a battery holding device separately formed from the frame of a human-powered vehicle, and includes: a battery mounting part, which detachably mounts a battery unit by means of a screw member; and at least one guide part, which guides the battery unit in a predetermined direction when mounting or dismounting the battery unit. When the battery holding device of the tenth aspect is adopted, the battery unit can be detachably installed in the battery mounting part by means of a screw component. Therefore, the battery unit can be properly installed in a human-powered vehicle. When the battery holding device of the tenth aspect is adopted, the battery unit can be guided in a predetermined direction by means of at least one guide part.

[0016] According to the eleventh aspect of the tenth aspect of this disclosure, the aforementioned screw component includes at least one bolt and a nut, and the aforementioned battery mounting portion includes at least one of the following elements: a female thread portion configured for connection of the aforementioned bolt; a male thread portion configured for connection of the aforementioned nut; and a through hole configured for passage of a portion of the aforementioned bolt. When the battery holding device of aspect eleven is adopted, the battery unit can be installed in the battery mounting part by means of at least one of the screw component, the female threaded part, the male threaded part, and the through hole.

[0017] In the battery holding device according to the eleventh and twelfth aspects of this disclosure, at least one of the aforementioned female thread portion, the aforementioned male thread portion, and the aforementioned through hole extends in the aforementioned predetermined direction. When the battery holding device of the twelfth aspect is adopted, the battery unit can be installed in the battery mounting part by means of a screw component and at least one of a female threaded part, a male threaded part, and a through hole extending in a predetermined direction.

[0018] The battery holding device according to any one of the third and fifth to twelfth aspects of this disclosure further includes a limiting part configured to limit the movement of the aforementioned battery cell in the first direction of disassembling the aforementioned battery cell in the aforementioned predetermined direction. When the battery holding device of aspect thirteen is adopted, even if the screw component is removed, the battery cell can still be restricted from moving in the first direction by the limiting part.

[0019] According to the fourteenth aspect of this disclosure, the battery holding device is formed separately from the frame of the human-powered vehicle, and includes: at least one starting unit connection portion connected to a starting unit that rotatably supports the crankshaft of the human-powered vehicle; at least one guide portion that guides the battery unit in a predetermined direction when loading or unloading the battery unit; and a limiting portion configured to limit the movement of the battery unit in a first direction in which the battery unit is disassembled in the predetermined direction; the limiting portion is disposed between the battery unit and the starting unit when the battery unit is held in the battery holding device and the starting unit is connected to the human-powered vehicle, viewed from a direction parallel to the crankshaft. When the battery holding device of the fourteenth aspect is adopted, the movement of the battery unit in the first direction can be restricted by the limiting part. When the battery holding device of the fourteenth aspect is adopted, the battery unit can be guided to a predetermined direction by at least one guide part. When the battery holding device of the fourteenth aspect is adopted, with the battery unit held in the battery holding device and the starting unit connected to the manual-driven vehicle, viewed from a direction parallel to the crankshaft, since the limiting part is disposed between the battery unit and the starting unit, the limiting part can be disposed close to both the battery unit and the starting unit. By providing the battery holding device of the fourteenth aspect in the manual-driven vehicle, the battery unit can be properly installed in the manual-driven vehicle.

[0020] In the battery holding device according to the thirteenth or fourteenth aspect of this disclosure, the aforementioned limiting part is configured to move between a first position that restricts the movement of the aforementioned battery cell and a second position that does not restrict the movement of the aforementioned battery cell. When the battery holding device of the fifteenth aspect is adopted, the battery cell can move relative to the limiting part in the first direction by moving the limiting part from the first position to the second position.

[0021] The battery holding device according to the fifteenth and sixteenth aspects of this disclosure further includes an operating part that can operate the aforementioned limiting part. The operating part includes a lever member that rotates about a predetermined rotation axis. When the battery holding device of the sixteenth aspect is adopted, the limiting part can be operated by a lever member that rotates around a predetermined axis of rotation.

[0022] In the battery holding device according to the sixteenth and seventeenth aspects of this disclosure, at least a portion of the aforementioned operating part is disposed at a position covered by the electrical wiring portion electrically connected to the aforementioned battery cell. When the battery holding device of aspect seventeen is adopted, the user's operation error of the operating unit can be suppressed by the electrical wiring section.

[0023] In the battery holding device according to the seventeenth and eighteenth aspects of this disclosure, the aforementioned predetermined axis of rotation extends substantially perpendicular to the aforementioned predetermined direction. When the battery holding device of the eighteenth aspect is adopted, the limiting part can be operated by a lever member that rotates about a rotation axis that extends substantially perpendicular to the predetermined direction.

[0024] The battery holding device according to any one of the fifteenth to eighteenth aspects of this disclosure further includes a force-applying part that applies force to the aforementioned limiting part from the aforementioned second position toward the aforementioned first position. When the battery holding device of the nineteenth aspect is adopted, even if the limiting part is not moved from the second position to the first position by the operating part, the limiting part can still be moved from the second position to the first position by the force-applying part.

[0025] The battery holding device according to any one of aspects fourteen to nineteen of this disclosure, in aspect twentieth, further includes a battery mounting portion, which detachably mounts the aforementioned battery cell. When the battery holding device of aspect 20 is adopted, the battery cell can be properly installed in the battery holding device by means of the battery mounting part.

[0026] In the battery holding device according to the thirteenth or twentieth aspect of this disclosure, the aforementioned battery mounting portion is disposed downstream of the aforementioned limiting portion in the aforementioned first direction. When the battery holding device of aspect twenty-one is adopted, the battery mounting part can hold the battery cell downstream of the limiting part in the first direction.

[0027] In the battery holding device according to any one of the third, fifth to thirteenth, twentieth and twenty-first aspects of this disclosure, the aforementioned battery mounting part is disposed downstream of the aforementioned at least one guide part in the aforementioned first direction. When the battery holding device of aspect twenty-two is adopted, the battery mounting part can hold the battery cell downstream of the first direction even more than at least one guide part.

[0028] In the battery holding device according to any one of the first to ninth and fourteenth aspects of this disclosure, at least a portion of the aforementioned battery mounting portion is connected to the aforementioned starting unit at the aforementioned at least one starting unit connection portion, the aforementioned starting unit is connected to the aforementioned vehicle frame, and the aforementioned manually driven vehicle has all its wheels in contact with the horizontal ground, and is located below the aforementioned crankshaft. When the battery holding device of aspect twenty-three is adopted, the center of gravity of the human-powered vehicle can be lowered.

[0029] According to the twenty-fourth aspect of this disclosure, the starting unit is for a human-powered vehicle and includes: a base portion that rotatably supports the crankshaft of the human-powered vehicle; a frame mounting portion disposed on the aforementioned base portion and mountable on the frame of the aforementioned human-powered vehicle; a motor disposed on the aforementioned base portion and configured to provide propulsion to the aforementioned human-powered vehicle; and a battery mounting portion disposed on the aforementioned base portion and detachably mountable a battery unit by means of screw components. When using the starting unit of aspect twenty-four, the battery unit can be detachably installed in the battery mounting section by means of screw components. By installing the starting unit of aspect twenty-four in a human-powered vehicle, the battery unit can be properly installed in the human-powered vehicle.

[0030] According to the twenty-fifth aspect of this disclosure, the battery cell is used in a human-powered vehicle and includes: a housing that forms a receiving space and has a first end and a second end in the longitudinal direction; and one or more battery elements disposed in the receiving space; the housing is detachably constructed in a battery holding device by means of a screw member extending in a direction substantially parallel to the longitudinal direction. When using the battery cell of aspect twenty-five, the casing is detachably constructed in the battery holding device by means of a screw member extending in a direction substantially parallel to the length direction. Therefore, the battery cell can be properly installed in a human-powered vehicle.

[0031] The battery cell according to the twenty-fifth and twenty-sixth aspects of this disclosure further includes at least one guided portion, which is disposed in the aforementioned housing and guided by at least one guide portion disposed in the aforementioned battery holding device or the frame of the aforementioned human-powered vehicle. When using the battery cell of aspect twenty-six, the battery cell is properly guided by guiding at least one guided part with at least one guided part.

[0032] In the battery cell of the twenty-sixth to twenty-seventh aspects of this disclosure, the aforementioned at least one guided portion extends along the aforementioned length direction of the aforementioned housing. When using the battery cell of aspect twenty-seven, the battery cell can be properly guided in the length direction of the casing by having at least one guide portion guide at least one guided portion.

[0033] In the battery cell of aspect 28 according to any one of aspects 25 to 27 of this disclosure, the aforementioned screw component includes at least one bolt and nut, and the aforementioned first end of the aforementioned housing includes at least one of the following elements: a female thread portion configured for connection of the aforementioned bolt; a male thread portion configured for connection of the aforementioned nut; and a through hole configured for passage of a portion of the aforementioned bolt. When using the battery cell of aspect twenty-eight, the battery cell can be installed in the battery mounting part by means of at least one of the female threaded part, the male threaded part, and the through hole.

[0034] In the battery cell of the twenty-eighth and twenty-ninth aspects of this disclosure, the aforementioned first end has a protrusion that protrudes in a direction that is not parallel to the aforementioned length direction of the aforementioned outer casing, and the aforementioned protrusion forms at least one of the aforementioned male thread, female thread, and aforementioned through hole. When using the battery cell of aspect twenty-nine, the battery cell can be mounted on the battery mounting portion by means of at least one of the female thread portion, male thread portion and through hole formed in the protrusion.

[0035] In the battery cell according to the 26th or 27th aspect of this disclosure, the aforementioned screw component includes at least one bolt and nut, and the aforementioned first end of the aforementioned housing includes at least one of the following elements: a female thread portion configured for connection of the aforementioned bolt; a male thread portion configured for connection of the aforementioned nut; and a through hole configured for passage of a portion of the aforementioned bolt; the aforementioned first end has a protrusion that protrudes in a direction not parallel to the aforementioned length direction of the aforementioned housing, and at least one of the aforementioned male thread portion, female thread portion, and the aforementioned through hole is formed in the aforementioned protrusion, the aforementioned at least one guided portion is disposed in the aforementioned housing, and the side portion between the aforementioned protrusion and the aforementioned second end. When using the thirtieth aspect of the battery cell, the battery cell is guided by at least one guided portion provided on the side portion between the protrusion and the second end.

[0036] In the battery cell according to the thirty-first aspect of the present disclosure, the aforementioned protrusion and the aforementioned at least one guided portion are provided on a first side portion of the aforementioned housing in a direction substantially orthogonal to the aforementioned length direction. When using the battery cell of aspect thirty-one, the protrusion and the aforementioned at least one guided portion may be arranged close together.

[0037] The battery cell according to any one of the twenty-eighth to thirty-first aspects of this disclosure, in the thirty-second aspect, further includes an engaging portion configured to engage with a limiting portion disposed on the aforementioned battery holding device to restrict movement in the disassembly direction. When using the battery cell of aspect 32, the battery cell can be restricted from being removed from the battery holding device by engaging the engaging part and the limiting part.

[0038] The battery cell according to the thirty-third aspect of the thirty-first aspect of this disclosure further includes an engaging portion configured to engage with a limiting portion provided on the aforementioned battery holding device to restrict movement in the disassembly direction, the aforementioned engaging portion being provided on the aforementioned first side portion. When using the battery cell of aspect 33, the battery cell can be restricted from being removed from the battery holding device by engaging the limiting part with the engaging part provided on the first side.

[0039] In the battery cell according to the thirty-second or thirty-third aspect or the thirty-fourth aspect of this disclosure, the aforementioned engaging portion includes a recess. When using the battery cell of aspect 34, the engagement part can be easily formed by the recess. [Effects of the Invention]

[0040] The battery holding device and starting unit for a human-powered vehicle disclosed herein allow for proper installation of the battery unit in the human-powered vehicle. Simple Explanation of the Diagram

[0041] Figure 1 is a side view of the main body of a human-powered vehicle, including the battery holding device for the human-powered vehicle, the starting unit for the human-powered vehicle, and the battery unit for the human-powered vehicle, as viewed from a first side. Figure 2 is a side view of the battery holding device, starting unit, and battery unit of the human-powered vehicle body in Figure 1, viewed from the first side. Figure 3 is a side view of the battery holding device, starting unit, and battery cell of the human-powered vehicle body in Figure 1, viewed from the second side. Figure 4 is a bottom view of the battery holding device, starting unit, and battery unit of the human-powered vehicle body shown in Figure 1. Figure 5 is an enlarged side view of the periphery of the battery holding device for a human-powered vehicle, omitting a portion of the frame in Figure 2. Figure 6 is an enlarged side view of the periphery of the battery holding device for a human-powered vehicle, omitting a portion of the frame in Figure 3. Figure 7 is a side view shown in Figure 5 with the battery unit for the human-powered vehicle omitted. Figure 8 is a side view shown in Figure 6 with the battery unit for the human-powered vehicle omitted. Figure 9 is a perspective view of the battery holding device for a human-powered vehicle and the starting unit for a human-powered vehicle shown in Figure 2. Figure 10 is an exploded perspective view of the battery holding device for a human-powered vehicle shown in Figure 9 and the starting unit for a human-powered vehicle shown in Figure 9. Figure 11 is a partial cross-sectional view along line D11-D11 in Figure 4. Figure 12 is a perspective view of the battery unit used in a human-powered vehicle as shown in Figure 1. Figure 13 is a side view of the battery cell of Figure 1 used in a human-powered vehicle, viewed from a second side. Figure 14 is an exploded perspective view of the battery retention device for a human-powered vehicle shown in Figure 9. Figure 15 is a perspective view of the limiting part, operating component, force-applying part, shaft component, and control component of Figure 14. Figure 16 is a bottom view of the battery holding device and the starting unit for a human-powered vehicle shown in Figure 9. Figure 17 is a schematic diagram showing the first and second positions of the limiting part in Figure 15. Figure 18 shows a perspective view of the support component in Figure 2. Figure 19 is a side view of the support member in Figure 18 viewed from the first side. Figure 20 is a partial cross-sectional view along line D20-D20 in Figure 4. Figure 21 is a perspective view of a starting unit for a human-powered vehicle, including a battery holding device for the vehicle. Figure 22 is a cross-sectional view showing a modified example of the structure of the battery mounting section 52. Implementation

[0042] [Implementation Mode]

[0043] Referring to Figures 1 to 20, embodiments of the battery holding device 50, the starting unit 30, and the battery unit 80 for a human-powered vehicle are described. The human-powered vehicle 10 is a passenger vehicle having at least one wheel and capable of being driven by human power. Examples of human-powered vehicles 10 include various types of bicycles such as mountain bikes, road bikes, city bikes, freight bikes, hand bikes, and recumbent bikes. The number of wheels in the human-powered vehicle 10 is not limited. The human-powered vehicle 10 also includes, for example, unicycles and passenger vehicles with three or more wheels. The human-powered vehicle 10 is not limited to passenger vehicles that can be driven solely by human power. The human-powered vehicle 10 includes not only human power but also electric bicycles (E-bikes) that utilize the driving force of an electric motor for propulsion. Electric bicycles include electric-assisted bicycles that are propelled by an electric motor. In the following description, the human-powered vehicle 10 will be used as an electric-assisted bicycle in the implementation, and one example of an electric-assisted bicycle will be used as a road bicycle.

[0044] The human-powered vehicle 10 has an input rotary shaft for inputting human driving force. The human-powered vehicle 10 further includes: wheels 14 and a vehicle body 16. The wheels 14 include: a rear wheel 14A and a front wheel 14B. The vehicle body 16 includes a frame 18. The input rotary shaft includes a crankshaft 44 rotatable relative to the frame 18. A pair of crank arms are disposed in the crankshaft 44. One crank arm is disposed at one end of the crankshaft 44 in the axial direction, and the other crank arm is disposed at the other end of the crankshaft 44 in the axial direction. A crank is formed by the pair of crank arms and the crankshaft 44. One and the other of a pair of pedals are respectively connected to each crank arm. The rear wheel 14A is driven by the rotation of the crank. The rear wheel 14A is supported on the frame 18. The crank and the rear wheel 14A are connected by a drive mechanism. The drive mechanism includes a first rotating body connected to the crankshaft 44. The crankshaft 44 can be connected to the first rotating body for integral rotation, or it can be connected via a first one-way clutch. The first one-way clutch is configured to cause the first rotating body to rotate forward when the crank is turned forward, and to allow the crank and the first rotating body to rotate relative to each other when the crank is turned backward. In this embodiment, the crankshaft 44 is connected to the first rotating system for integral rotation. The first rotating body includes a sprocket, pulley, or helical gear. The drive mechanism further includes a second rotating body and a connecting member. The connecting member transmits the rotational force of the first rotating body to the second rotating body. The connecting member includes, for example, a chain, belt, or shaft.

[0045] The second rotating body is connected to the rear wheel 14A. The second rotating body includes a sprocket, pulley, or helical gear. A second one-way clutch is preferably provided between the second rotating body and the rear wheel 14A. The second one-way clutch is configured to cause the rear wheel 14A to rotate forward when the second rotating body rotates forward, and to allow the second rotating body and the rear wheel 14A to rotate relative to each other when the second rotating body rotates backward.

[0046] The front wheel 14B is mounted on the frame 18 via the front fork 20. The handlebars are connected to the front fork 20 via a lever. In this embodiment, the rear wheel 14A is connected to the crank via a drive mechanism; however, at least one of the rear wheel 14A and the front wheel 14B may also be connected to the crank via a drive mechanism.

[0047] The human-powered vehicle 10 includes a starting unit 30, a battery holding device 50, and a battery unit 80. The starting unit 30 preferably includes a base portion 32, a frame mounting portion 34, and a motor 36. The base portion 32 rotatably supports the crankshaft 44 of the human-powered vehicle 10. The frame mounting portion 34 is disposed on the base portion 32 and can be mounted on the frame 18 of the human-powered vehicle 10. The motor 36 is disposed on the base portion 32 and configured to provide propulsion to the human-powered vehicle 10. The motor 36 includes an electric motor. The starting unit 30 preferably further includes the crankshaft 44. The starting unit 30 preferably further includes an output portion 46.

[0048] The base portion 32 preferably includes a housing 42. The motor 36 is disposed within the housing 42. In this embodiment, the motor 36 is disposed within the housing 42 such that the rotation axis C1 of the motor 36 is substantially parallel to the rotation axis of the crankshaft 44. Alternatively, the motor 36 may be disposed within the housing 42 such that the rotation axis C1 of the motor 36 is not parallel to the rotation axis of the crankshaft 44. The motor 36 may also be housed, at least a portion thereof, within the internal space of the housing 42, or it may be formed separately from and mounted on the housing 42. The motor 36 is preferably disposed within the housing 42 such that its rotational center axis is parallel to the axial direction C of the crankshaft 44. The internal space of the housing 42 preferably houses at least a portion of a speed reducer disposed in the power transmission path between the motor 36 and the first rotating body.

[0049] A first hole 42A and a second hole 42B are formed in the housing 42 for arranging the crankshaft 44. A portion of the first end 44A of the crankshaft 44 is disposed in the first hole 42A, and a portion of the second end 44B of the crankshaft 44 is disposed in the second hole 42B. The output portion 46 is preferably disposed around the crankshaft 44. In this embodiment, the output portion 46 has a cylindrical shape and is coaxially disposed with the crankshaft 44. The rotational force of the crankshaft 44 and the rotational force of the motor 36 are transmitted to the output portion 46. At least a portion of the output portion 46 is disposed in the first hole 42A. The output portion 46 includes a first rotating body mounting portion 46A for mounting a first rotating body. The first rotating body mounting portion 46A includes, for example, a spline shaft. A first one-way clutch may also be disposed on the power transmission path between the crankshaft 44 and the output portion 46.

[0050] At least a portion of the starting unit 30 is disposed within the internal space 18S of the frame 18. An opening 22 communicating with the internal space 18S is provided on the frame 18. The opening 22 preferably houses at least one of the downtube 18A and seatpost 18B of the frame 18. In this embodiment, the opening 22 is located at the connection between the downtube 18A, seatpost 18B, and chain link 18C. The opening 22 preferably opens downwards when all wheels 14 of the manually driven vehicle 10 are in contact with the horizontal ground.

[0051] The frame mounting portion 34 is preferably located on the outer periphery of the base portion 32. The frame mounting portion 34 preferably includes a plurality of frame mounting portions 34. At least one of the plurality of frame mounting portions 34 may also protrude outward from the outer periphery of the base portion 32. Each of the plurality of frame mounting portions 34 includes at least one hole 34A and a female thread portion 34B. At least one of the hole 34A and the female thread portion 34B preferably extends in a direction parallel to the axial direction C of the crankshaft 44.

[0052] The plurality of frame mounting portions 34 include: at least one first frame mounting portion 35A with an opening in one direction parallel to the axial direction C of the crankshaft 44; and at least one second frame mounting portion 35B with an opening in the other direction parallel to the axial direction C of the crankshaft 44. At least one of the at least one first frame mounting portions 35A and at least one of the at least one second frame mounting portions 35B are preferably arranged in an overlapping position when viewed from the axial direction of the crankshaft 44. At least one first frame mounting portion 35A is provided on a first side surface portion 32A of the base portion 32 in the axial direction of the crankshaft 44. At least one second frame mounting portion 35B is provided on a second side surface portion 32B of the base portion 32 in the axial direction of the crankshaft 44. A first hole 42A is formed in the first side surface portion 32A, and a second hole 42B is formed in the second side surface portion 32B.

[0053] The number of at least one first frame mounting portion 35A and the number of at least one second frame mounting portion 35B can be the same or different. When the number of at least one first frame mounting portion 35A and the number of at least one second frame mounting portion 35B are different, it is preferable that the number of at least one first frame mounting portion 35A is greater than the number of at least one second frame mounting portion 35B. By ensuring that the number of at least one first frame mounting portion 35A provided on the first side portion 32A on which the first rotating body is disposed is greater than the number of at least one second frame mounting portion 35B, the starting unit 30 can be stably fixed to the frame 18. In this embodiment, the number of at least one first frame mounting portion 35A is 3, and the number of at least one second frame mounting portion 35B is 2.

[0054] When there are at least three first frame mounting parts 35A, when viewed from the axial direction C of the crankshaft 44, the center of the crankshaft 44 should be positioned in the area surrounded by a line segment passing through the center of the hole 34A of at least one first frame mounting part 35A or the center of the female thread portion 34B of at least one first frame mounting part 35A.

[0055] At least one of the first frame mounting parts 35A and at least one of the second frame mounting parts 35B, when all the wheels 14 of the manually driven vehicle 10 are in contact with the horizontal ground, are preferably positioned on the side of the rear wheel 14A as viewed from the axial direction C of the crankshaft 44. The other of the at least one first frame mounting part 35A and the other of the at least one second frame mounting part 35B, when all the wheels 14 of the manually driven vehicle 10 are in contact with the horizontal ground, are preferably positioned on the side of the front wheel 14B as viewed from the axial direction C of the crankshaft 44.

[0056] When at least one first frame mounting portion 35A includes a plurality of first frame mounting portions 35A, the plurality of first frame mounting portions 35A, viewed from the axial direction C of the crankshaft 44, are arranged at substantially equal distances from the rotation axis of the crankshaft 44 and are spaced apart around the rotation axis of the crankshaft 44. When at least one second frame mounting portion 35B includes a plurality of second frame mounting portions 35B, the plurality of second frame mounting portions 35B, viewed from the axial direction C of the crankshaft 44, are arranged at substantially equal distances from the rotation axis of the crankshaft 44 and are spaced apart around the rotation axis of the crankshaft 44.

[0057] When the motor 36 is mounted on the housing 42 such that the rotation axis C1 of the motor 36 is substantially parallel to the rotation axis of the crankshaft 44, when viewed from the axial direction C of the crankshaft 44, the plurality of frame mounting parts 34 are positioned closer to the rotation axis of the crankshaft 44 than the rotation axis C1 of the motor 36.

[0058] The frame 18 includes a plurality of starter unit mounting portions 24. Each of the plurality of starter unit mounting portions 24 includes at least one hole 24A and a female threaded portion. The plurality of starter unit mounting portions 24 are disposed at positions corresponding to each of the plurality of frame mounting portions 34. The starter unit 30 is mounted on the frame 18 by bolts connecting the starter unit mounting portions 24 and the frame mounting portions 34. In this embodiment, the plurality of frame mounting portions 34 and the plurality of starter unit mounting portions 24 are directly connected, but they can also be connected via brackets.

[0059] The battery unit 80 is preferably mounted to the starting unit 30 via a battery holding device 50. The battery unit 80 preferably includes a housing 82 and one or more battery elements 84. The housing 82 forms a receiving space 82S and has a first end 82A and a second end 82B in the longitudinal direction B. One or more battery elements 84 are disposed in the receiving space 82S. The housing 82 is configured to be detachable from the battery holding device 50 by means of a screw member 40 extending in a direction substantially parallel to the longitudinal direction B. At least a portion of the battery unit 80 is preferably disposed within the interior space 18S of the frame 18. At least a portion of the battery unit 80 is preferably disposed outside the interior space 18S of the frame 18. At least a portion of the battery unit 80 is preferably disposed on at least one of the downtube 18A or seatpost 18B of the frame 18. In this embodiment, at least a portion of the battery unit 80 is disposed on the downtube 18A. The battery unit 80 is disposed in the internal space 18S of the frame 18, such that the length direction B of the outer casing 82 is substantially parallel to the extension direction of the frame downtube 18A. The term "substantially parallel" takes into account the range of installation error, and the inclination of one side to the other is, for example, within a range of 10 degrees, and preferably within a range of 5 degrees.

[0060] The battery holding device 50 is formed separately from the frame 18 of the human-powered vehicle 10. The battery holding device 50 includes: a battery mounting part 52 and at least one starting unit connection part 54.

[0061] In this embodiment, the battery holding device 50 is separately configured with the base portion 32 of the starting unit 30. In this embodiment, the battery holding device 50 includes a battery mounting portion 52. The battery holding device 50 is detachably mounted on the base portion 32 of the starting unit 30. The battery holding device 50 preferably further includes a body portion 60. The body portion 60 preferably has a shape corresponding to the outer peripheral surface of the housing 42 of the starting unit 30. The body portion 60 preferably contains a metallic material. The body portion 60 may also contain a resin material. The battery mounting portion 52, at least one starting unit connecting portion 54, and at least one guide portion 56 are preferably integrally formed with the body portion 60.

[0062] At least one starting unit connection portion 54 is connected to the starting unit 30, which rotatably supports the crankshaft 44 of the manually driven vehicle 10. At least one starting unit connection portion 54 is disposed on the outer periphery of the main body portion 60. At least one starting unit connection portion 54 preferably has a plurality of starting unit connection portions 54. For example, at least one starting unit connection portion 54 may have four starting unit connection portions 54. At least one starting unit connection portion 54 is mounted to the starting unit 30 by means of a mounting member 62. At least one starting unit connection portion 54 preferably includes a hole 54A. The mounting member 62 is constructed, for example, by a bolt, and includes a male thread portion 62A. The male thread portion 62A of the mounting member 62 is inserted into the hole 54A and engages with the female thread portion 42C disposed on the housing 42 of the starting unit 30. At least one starting unit connection portion 54 is thus fixed to the housing 42. The four starting unit connection portions 54 are arranged at intervals in two directions: one parallel to the axial direction C of the crankshaft 44, and the other substantially orthogonal to the axial direction C of the crankshaft 44. The four starting unit connection portions 54 are respectively located at both ends of the body portion 60 in the direction parallel to the axial direction C of the crankshaft 44, and at both ends of the body portion 60 in the direction substantially orthogonal to the axial direction C of the crankshaft 44. The mounting member 62 has a tool engagement portion 62B. When the mounting member 62 is constructed by bolts, the tool engagement portion 62B is formed on the head of the bolt. In this embodiment, the tool engagement portion 62B includes a recess. The recess has a shape for a wrench to engage. At least one starting unit connection portion 54 is positioned opposite the battery unit 80 when the battery holding device 50 holds the battery unit 80. The holes 54A formed in at least one starting unit connection portion 54 extend non-parallel to the axial direction C of the crankshaft 44. In this embodiment, the holes 54A formed in each starting unit connection portion 54 extend substantially perpendicular to a plane parallel to the axial direction C of the crankshaft 44. The tool engagement portion 62B of each mounting member 62 is positioned opposite to the battery unit 80 when the battery holding device 50 holds the battery unit 80. When the battery holding device 50 holds the battery unit 80, it holds the battery unit 80, thereby preventing the tool from engaging with the tool engagement portion 62B of each mounting member 62.

[0063] The battery holding device 50 further includes a cover 64. The cover 64 preferably covers a portion of the end face of the housing 42 of the starting unit 30 in a direction parallel to the axial direction C of the crankshaft 44. The cover 64 is connected to a first end 60A of the body portion 60 in a direction parallel to the axial direction C of the crankshaft 44. The body portion 60 and the cover 64 are integrally formed as a single component. The first end 60A is preferably the end portion of the body portion 60 on the side where the first end 44A of the crankshaft 44 is located in the axial direction C of the crankshaft 44. The cover 64 extends from the first end 60A of the body portion 60 in a direction orthogonal to the axial direction C of the crankshaft 44 and toward the starting unit 30. The cover 64 may also be omitted.

[0064] The battery unit 80 is detachably mounted on the battery mounting portion 52 by means of a screw member 40. The screw member 40 preferably includes at least one bolt 40A and a nut. The battery mounting portion 52 includes: a female threaded portion 52A for connection of the bolt 40A; a male threaded portion for connection of the nut; and at least one through hole 52B for passage of a portion of the bolt 40A. At least one of the female threaded portion 52A, the male threaded portion, and the through hole 52B preferably extends in a direction substantially parallel to a predetermined direction X.

[0065] The predetermined direction X is preferably not parallel to the axial direction C of the crankshaft 44 when at least one starting unit connecting part 54 is connected to the starting unit 30. The predetermined direction X is preferably substantially orthogonal to the direction parallel to the axial direction C of the crankshaft 44 when at least one starting unit connecting part 54 is connected to the starting unit 30.

[0066] The screw component 40 preferably includes at least one bolt 40A and a nut. The first end 82A of the housing 82 of the battery unit 80 includes a female thread portion for connecting the bolt 40A; a male thread portion for connecting the nut; and at least one through hole 82C for a portion of the bolt 40A to pass through. The first end 82A preferably has a protrusion 82D that protrudes in a direction not parallel to the length direction B of the housing 82, and at least one of the male thread portion, the female thread portion, and the through hole 82C is formed in the protrusion 82D.

[0067] The screw component 40 of this embodiment includes a bolt 40A, and the battery mounting portion 52 includes a female threaded portion 52A and a through hole 52B. The first end 82A of the housing 82 of the battery unit 80 includes a through hole 82C. The through hole 52B is provided in the body portion 60. The body portion 60 has a first end 60A and a second end 60B in a predetermined direction X. The through hole 52B is provided in the first end 60A of the body portion 60 in the predetermined direction X. The first end 60A corresponds to the lower end of the body portion 60 when at least one starting unit connecting portion 54 is connected to the starting unit 30, the starting unit 30 is connected to the frame 18, and all wheels 14 of the manually driven vehicle 10 are in contact with the horizontal ground. The body portion 60 includes a mounting portion 60C for mounting the female threaded portion 52A. In the predetermined direction X, the mounting portion 60C is provided between the through hole 52B and the second end 60B of the body portion 60. The female threaded portion 52A is preferably formed separately from the body portion 60. The female thread portion 52A preferably contains a metallic material. The female thread portion 52A is preferably non-removably mounted to the body portion 60. For example, the female thread portion 52A is formed in an insertion member 60D separately formed from the body portion 60. For example, the mounting portion 60C includes a recess or hole, and the insertion member 60D is inserted into the mounting portion 60C. The insertion member 60D is preferably non-removably mounted to the body portion 60. The insertion member 60D can also be pressed into the body portion 60, installed in the body portion 60 by adhesive, or embedded in the body portion 60. The insertion member 60D can also be integrally formed with the body portion 60 as a single component. In this case, the through hole 52B is preferably omitted, and the screw hole of the female thread portion 52A extends to the outer peripheral surface of the first end portion 60A of the body portion 60.

[0068] The battery mounting portion 52 is preferably configured to mount the battery unit 80 so that the length direction B of the battery unit 80 is substantially parallel to a predetermined direction X. The predetermined direction X is preferably substantially parallel to the direction in which the frame downtube 18A or seat tube 18B of the frame 18 extends, provided at least one starting unit connection portion 54 is provided on the starting unit 30, and the starting unit 30 is provided in the state of being manually driven vehicle 10.

[0069] The battery holding device 50 preferably includes at least one guide portion 56. When the battery unit 80 is installed or removed, the at least one guide portion 56 guides the battery unit 80 in a predetermined direction X. When the battery unit 80 is installed or removed from the battery mounting portion 52, the at least one guide portion 56 is configured to guide the battery unit 80 in a predetermined direction X. The at least one guide portion 56 is preferably integrally formed with the body portion 60 as a single component. Alternatively, the at least one guide portion 56 may be separately formed from the body portion 60 and fixed to the body portion 60 by bolts, rivets, or adhesives. In this embodiment, the at least one guide portion 56 includes a first guide portion 56A and a second guide portion 56B. The first guide portion 56A and the second guide portion 56B are arranged at intervals in a direction parallel to the axial direction C of the crankshaft 44. The first guide portion 56A and the second guide portion 56B extend parallel to each other.

[0070] The battery cell 80 preferably includes at least one guided portion 86. The at least one guided portion 86 is disposed in the housing 82 and guided by at least one guide portion 56 disposed in the battery holding device 50 or the frame 18 of the human-powered vehicle 10. In this embodiment, the at least one guided portion 86 is guided by at least one guide portion 56 disposed in the battery holding device 50. The at least one guided portion 86 preferably extends in the length direction B of the housing 82. The at least one guided portion 86 preferably is disposed in the housing 82 in a side portion 82E between the protrusion 82D and the second end portion 82B. The side portion 82E includes a first side portion 82F and a second side portion 82G in a direction substantially orthogonal to the length direction B. Preferably, in the housing 82, the first side portion 82F, on one side of the direction substantially orthogonal to the length direction B, is provided with the protrusion 82D and at least one guided portion 86. With the battery unit 80 mounted on the frame 18 and all wheels 14 of the manually driven vehicle 10 in contact with the horizontal ground, the first side portion 82F preferably includes an upper side portion in a direction substantially orthogonal to the length direction B, and the second side portion 82G. At least one guided portion 86 is preferably integrally formed with the housing 82 as a single component. The at least one guided portion 86 may also be separately formed from the housing 82 and fixed to the housing 82 by bolts, rivets, or adhesives. The housing 82 may be formed, for example, by a resin material, or by a metal material, or partly by a resin material and partly by a metal material.

[0071] At least one guided portion 86 preferably includes a plurality of guided portions 86 disposed at different positions from the first side portion 82F in a direction orthogonal to the length direction B. In this embodiment, at least one guided portion 86 includes a first guided portion 86A and a second guided portion 86B. The first guided portion 86A and the second guided portion 86B extend in parallel. The first guided portion 86A is disposed at one end of the first side portion 82F in a direction orthogonal to the length direction B. The second guided portion 86B is disposed at the other end of the second side portion 82G in a direction orthogonal to the length direction B. When at least one guided portion 86 has a plurality of guided portions 86, at least one guide portion 56 includes a plurality of guide portions 56 corresponding to the number of at least one guided portion 86. The number and position of at least one guided portion 86 preferably correspond to the number and position of at least one guide portion 56.

[0072] At least one guide portion 56 and at least one guided portion 86 are configured to restrict the movement of the battery unit 80 relative to the starting unit 30 in a direction not parallel to a predetermined direction X, with at least one guide portion 56 guiding at least one guided portion 86. The at least one guide portion 56 and at least one guided portion 86 preferably have complementary shapes. For example, one of the at least one guide portion 56 and at least one guided portion 86 includes a recess extending in the predetermined direction X, and the other of the at least one guide portion 56 and at least one guided portion 86 includes a protrusion extending in the predetermined direction X. The recess is preferably recessed in a direction parallel to the axial direction C of the crankshaft 44, and the protrusion is preferably protruding in a direction parallel to the axial direction C of the crankshaft 44. In this embodiment, at least one guide portion 56 includes a recess extending in the predetermined direction X, and at least one guided portion 86 includes a protrusion extending in the predetermined direction X. In this embodiment, the first guide portion 56A has at least one protrusion protruding toward the second guide portion 56B and at least one recessed portion opposite to the second guide portion 56B. In this embodiment, the second guide portion 56B has at least one protrusion protruding toward the first guide portion 56A and at least one recessed portion opposite to the first guide portion 56A. In this embodiment, the first guided portion 86A has at least one protrusion protruding on the side opposite to the second guided portion 86B in a direction perpendicular to the length direction B of the battery unit 80, and at least one recessed portion recessed on the side of the second guided portion 86B in a direction perpendicular to the length direction B of the battery unit 80. In this embodiment, the second guided portion 86B has at least one protrusion protruding on the side opposite to the first guided portion 86A in a direction perpendicular to the length direction B of the battery unit 80, and at least one recessed portion recessed on the side of the first guided portion 86A in a direction perpendicular to the length direction B of the battery unit 80.

[0073] At least one guided portion 86 is disposed at the first end 82A of the battery unit 80. The length L1 of the at least one guided portion 86 in the extending direction of the at least one guided portion 86 may be equal to, shorter than, or longer than the length L2 of the at least one guided portion 56 in the extending direction of the at least one guided portion 56. The length L1 is, for example, in the range of more than 0.5 times and less than 2 times the length L2. When the battery unit 80 is mounted on the vehicle frame 18, the battery unit 80 is guided in the extending direction of the at least one guided portion 56 by inserting one of the protrusions and recesses of the at least one guided portion 86 into the other of the protrusions and recesses of the at least one guided portion 56. The at least one guided portion 86 may also extend to the second end 82B of the housing 82 of the battery unit 80. In this embodiment, the first guided portion 86A and the second guided portion 86B are positioned between the first guide portion 56A and the second guide portion 56B, with at least one guide portion 56 guiding at least one guided portion 86. Alternatively, with at least one guide portion 56 guiding at least one guided portion 86, the first guide portion 56A and the second guide portion 56B can be configured to be positioned between the first guided portion 86A and the second guided portion 86B. In this case, the direction of the concave portion and the direction of the convex portion are reversed in the configuration where the first guided portion 86A and the second guided portion 86B are positioned between the first guide portion 56A and the second guide portion 56B.

[0074] The housing 82 preferably has a roughly cubic shape and includes a third side portion 82H and a fourth side portion 82J, which are different from the first side portion 82F and the second side portion 82G, in a direction substantially orthogonal to the longitudinal direction B of the housing 82. An electrical connector 88 is preferably provided at the first end 80A of the fourth side portion 82J. The electrical connector 88 preferably connects to the electrical wiring portion 100. The electrical connector 88 has: a discharge terminal, a charging terminal, and a communication terminal. The discharge terminal and the charging terminal can also be configured using a common terminal.

[0075] The battery holding device 50 preferably includes a limiting part 58. The limiting part 58 is configured to restrict the movement of the battery unit 80 in a predetermined direction X toward a first direction X1 in which the battery unit 80 is to be removed. The limiting part 58 is preferably disposed between the battery unit 80 and the starting unit 30 when the battery unit 80 is held in the battery holding device 50 and the starting unit 30 is connected to the manually driven vehicle 10, viewed from a direction parallel to the crankshaft 44.

[0076] The limiting part 58 is configured to move between a first position P1 that restricts the movement of the battery cell 80 and a second position P2 that does not restrict the movement of the battery cell 80. The battery holding device 50 preferably further includes a force-applying part 70A that applies force to the limiting part 58 from the second position P2 toward the first position P1.

[0077] The battery holding device 50 preferably includes an operating part 66 of an operable limiting part 58. The operating part 66 includes a lever member 68 that rotates about a predetermined axis of rotation C2. The predetermined axis of rotation C2 preferably extends substantially perpendicular to a predetermined direction X. The operating part 66 is preferably configured to be operated by a user with one hand. Since the user can operate the operating part 66 with one hand, the user can hold the battery unit 80 with one hand while operating the operating part 66 with the other hand, thus preventing the battery unit 80 from falling. The lever member 68, for example, has a shape that easily hooks the user's fingers. The lever member 68, for example, has a shape that is concave and bent in the operating direction for removing the battery unit 80. With the battery unit 80 held in the battery holding device 50 and the starting unit 30 connected to the manual drive vehicle 10, the lever member 68, viewed from a direction parallel to the axial direction C of the crankshaft 44, is positioned between the battery unit 80 and the starting unit 30. Therefore, external foreign objects are less likely to come into contact with the lever member 68, suppressing unintentional operation of the lever member 68. With the battery unit 80 held in the battery holding device 50 and the battery holding device 50 connected to the starting unit 30, the battery unit 80 is disposed between a first plane and a second plane. The first plane passes through one end face of the starting unit 30 in the axial direction C of the crankshaft 44 on the housing 42 and is perpendicular to the axial direction C of the crankshaft 44. The second plane passes through the other end face of the starting unit 30 in the axial direction C of the crankshaft 44 on the housing 82 and is perpendicular to the axial direction C of the crankshaft 44. With the battery unit 80 held in the battery holding device 50 and the starting unit 30 connected to the human-powered vehicle 10, the lever member 68 is disposed between a third plane and a fourth plane. The third plane passes through one end face of the battery unit 80 in the axial direction C of the crankshaft 44 and is perpendicular to the axial direction C of the crankshaft 44. The fourth plane passes through the other end face of the battery unit 80 in the axial direction C of the crankshaft 44 and is perpendicular to the axial direction C of the crankshaft 44. Therefore, foreign objects are less likely to come into contact with the lever component 68, thus inhibiting unintentional operation of the lever component 68.

[0078] At least a portion of the operating section 66 is preferably located in a position covered by the electrical wiring section 100 electrically connected to the battery unit 80. The electrical wiring section 100, for example, electrically connects the starting unit 30 and the battery unit 80. The electrical wiring section 100 preferably includes at least one power supply line for supplying power from the battery unit 80 to the starting unit 30, and at least one communication line for communicatively connecting the battery unit 80 and the starting unit 30. The electrical wiring section 100 includes: a first connector 102, a second connector 104, and a cable 106. The cable 106 connects the first connector 102 and the second connector 104. The first connector 102 is configured to connect to the electrical connector 88 of the battery unit 80. The second connector 104 is configured to connect to the connector section 48 of the starting unit 30. Alternatively, the second connector 104 may be omitted, and the cable 106 may be directly connected to a circuit board disposed within the housing of the starting unit 30.

[0079] The battery holding device 50 preferably includes a shaft member 72 and a control member 74. The battery holding device 50 preferably includes a lever applying part 70B. A limiting part 58, an operating part 66, and a lever applying part 70B are mounted on the shaft member 72. The shaft member 72 is disposed in the body part 60. The shaft member 72 is configured to penetrate the body part 60. The shaft member 72 has a rotation axis C2. The shaft member 72 is rotatably mounted in the body part 60 about the rotation axis C2.

[0080] The limiting part 58 is mounted on the shaft member 72 and rotates about the shaft member 72. The limiting part 58 includes a claw part 58A. The limiting part 58 is disposed on the shaft member 72, and by rotating about the shaft member 72, the claw part 58A moves between a position protruding from the body part 60 and a position in which at least a portion of the claw part 58A is received in a recess 60E provided in the body part 60. The state in which the claw part 58A protrudes from the body part 60 corresponds to the first position P1 of the limiting part 58. The state in which the claw part 58A is received in the recess 60E corresponds to the second position P2 of the limiting part 58. When the limiting part 58 is disposed in the second position P2, and the claw part 58A is outside the movement path of the battery unit 80, the claw part 58A may not be entirely received in the recess 60E.

[0081] The control member 74 is mounted on the shaft member 72 and rotates integrally with it. The operating part 66 is mounted on the shaft member 72 and rotates integrally with it. The lever applying force part 70B applies force to the shaft member 72, causing the shaft member 72 to rotate in a first rotation direction about the rotation axis C2 of the shaft member 72. This positions the lever member 68 in its initial position when not in operation.

[0082] The force-applying part 70A is disposed between the claw part 58A and the body part 60. The force-applying part 70A is received in the recess 60E. When the operation part 66 is in a non-operational state and no force is applied to the claw part 58A about the rotation axis C2 of the shaft member 72 in the first rotational direction, the limiting part 58 is maintained in the first position P1 by means of the force-applying part 70A. When the operation part 66 is in a non-operational state and a force is applied to the claw part 58A about the rotation axis C2 of the shaft member 72 in the second rotational direction, the limiting part 58 is maintained in the first position P1. When a force is applied to the claw part 58A about the rotation axis C2 of the shaft member 72 in the second rotational direction, it includes the engagement of the battery unit 80 engagement part 90 with the claw part 58A.

[0083] When the operating unit 66 is operated and the shaft member 72 rotates around the rotation axis C2 in the second rotation direction, the control member 74 rotates together with the shaft member 72. When the control member 74 rotates, it contacts the claw part 58A, and the shaft member 72 causes the claw part 58A to rotate around the rotation axis C2 in the second rotation direction, and the limiting part 58 moves from the first position P1 to the second position P2. When the operation of the operating unit 66 is stopped while the limiting part 58 has moved from the first position P1 to the second position P2, the control member 74 rotates around the rotation axis C2 in the first rotation direction due to the force applied by the lever force application part 70B, the lever member 68 returns to its initial position, and the claw part 58A rotates around the rotation axis C2 in the second rotation direction due to the force applied by the force application part 70A, and the limiting part 58 moves from the second position P2 to the first position P1.

[0084] The battery cell 80 may further include an engaging portion 90 configured to engage with a limiting portion 58 disposed on the battery holding device 50 to restrict movement in the disassembly direction. The engaging portion 90 is preferably disposed on the first side portion 82F. For example, the engaging portion 90 includes a recess 90A. The limiting portion 58 is disposed at a position corresponding to the engaging portion 90 when the battery cell 80 is mounted on the battery mounting portion 52. When the limiting portion 58 is located at the first position P1 when the battery cell 80 is mounted on the battery mounting portion 52, at least a portion of it is disposed within the space formed by the recess 90A. By contacting the recess 90A with the limiting portion 58, movement of the battery cell 80 in the first direction X1 is restricted. The engaging portion 90 may have any shape as long as it engages with the limiting portion 58, and is not limited to the recess 90A. For example, the engaging portion 90 may also include a protrusion. The engaging portion 90 may also be omitted.

[0085] The battery holding device 50 preferably includes a support member 76. The support member 76 supports the second end 82B of the housing 82. By contacting the second end 82B of the housing 82, the support member 76 restricts the movement of the battery cell 80 in a predetermined direction X toward a second direction X2 where the battery cell 80 is mounted on the frame 18. The support member 76 includes a body portion 76A, a contact portion 76C, and a buffer portion 78. The body portion 76A includes a mounting portion 76B mounted on the frame 18. The support member 76 is mounted on the frame 18 via the mounting portion 76B, with at least a portion disposed within the internal space 18S of the frame 18. The mounting portion 76B preferably includes at least one female thread, a male thread, and a hole. The support member 76 of Figures 18 to 20 includes a female thread and is mounted on the frame 18 by screwing a bolt B1, which is inserted from the outside of the frame 18 through a through hole 18H, into the female thread.

[0086] The battery mounting portion 52 is preferably located downstream of the limiting portion 58 in the first direction X1. The battery mounting portion 52 is preferably located downstream of the guiding portion 56 in the first direction X1. At least a portion of the battery mounting portion 52 is preferably located below the crankshaft 44 when at least one starting unit connecting portion 54 is connected to the starting unit 30, the starting unit 30 is connected to the frame 18, and all wheels 14 of the manually driven vehicle 10 are in contact with the horizontal ground.

[0087] The contact portion 76C is preferably configured to be movable relative to the body portion 76A. The contact portion 76C is configured to contact the second end portion 82B of the housing 82. The contact portion 76C preferably has a shape corresponding to the second end portion 82B of the housing 82. The second end portion 82B of the housing 82 has a recess 83 at its central portion. At least a portion of the inner circumferential surface of the recess 83 has a curved surface. The contact portion 76C has a protrusion 76D at its central portion. At least a portion of the protrusion 76D has a curved surface. The recess 83 and the protrusion 76D have complementary shapes. Alternatively, a protrusion may be formed at the second end portion 82B of the housing 82, and a recess may be formed in the contact portion 76C. The contact portion 76C preferably comprises at least one of a metallic material and a resin material. A buffer portion 78 is disposed between the contact portion 76C and the body portion 76A. The buffer portion 78 includes, for example, a plunger 78A. The plunger 78A comprises rubber or an elastomer. The battery unit 80 is adjusted in a direction that is not parallel to the length direction B of the battery unit 80 within the internal space 18S of the frame 18 via the contact part 76C. The battery unit 80 is also adjusted in a direction that is parallel to the length direction B of the battery unit 80 within the internal space 18S of the frame 18 via the buffer part 78.

[0088] The following describes the operation of the limiting part 58 when the battery unit 80 is installed in the battery holding device 50. When the limiting part 58 is in the first position P1, at least one of the guided parts 86 of the battery cell 80 engages with the at least one guide part 56. When moving in the predetermined direction X, the limiting part 58 moves from the first position P1 to the second position P2 by the housing 82 contacting the limiting part 58, and is unrelated to the operation of the operating part 66. When the housing 82 moves further along the at least one guide part 56, a portion of the limiting part 58 is disposed in the space surrounded by the inner peripheral surface of the recess 90A of the engaging part 90 provided on the first side surface 82F of the battery cell 80, and the limiting part 58 moves from the second position P2 to the first position P1.

[0089] With the battery unit 80 restricted from moving in the first direction X1 by the limiting part 58, the battery unit 80 is mounted on the battery mounting part 52 by mounting the screw member 40 on the battery mounting part 52.

[0090] The following describes the operation of the limiting part 58 when removing the battery unit 80 from the battery holding device 50. When the battery unit 80 is installed in the battery mounting part 52, the screw member 40 is removed from the battery mounting part 52, and the battery unit 80 is restricted from moving in the first direction X1 by the limiting part 58.

[0091] With the screw member 40 removed from the battery mounting part 52 and the battery unit 80 restricted from moving in the first direction X1 by the limiting part 58, when the operating part 66 is operated, the limiting part 58 moves from the first position P1 to the second position P2 by rotating the shaft member 72 and the control member 74. By slightly moving the battery unit 80 in the second direction X2 and operating the operating part 66, the limiting part 58 easily disengages from the recess 90A, allowing it to easily move from the first position P1 to the second position P2. By moving the limiting part 58 from the first position P1 to the second position P2, the battery unit 80 becomes movable in the first direction X1 along at least one guide part 56. <Modification Example>

[0092] The description of the embodiments may be based on examples of the battery holding device, starting unit, and battery unit for a human-powered vehicle disclosed herein, and is not intended to limit the embodiments. The battery holding device, starting unit, and battery unit for a human-powered vehicle disclosed herein may take the form of, for example, modifications of the embodiments shown below, and combinations of at least two mutually consistent modifications. In the following modifications, the parts common to the embodiments are marked with the same symbols as the embodiments, and their descriptions are omitted.

[0093] In this embodiment, with the battery unit 80 installed in the battery holding device 50, the limiting part 58 is located in the first position P1. However, with the battery unit 80 installed in the battery holding device 50, the limiting part 58 can also be located in the second position P2. In this case, when the battery unit 80 moves from the installation position where it is installed on the vehicle frame 18 to the first direction X1 for removing the battery unit 80, the limiting part 58 can also move from the second position P2 to the first position P1, thereby restricting the movement in the first direction X1 for removing the battery unit 80.

[0094] The screw component 40, at least one guide portion 56, and at least one guided portion 86 may also extend in different directions from each other.

[0095] At least one guide portion 56 and at least one guided portion 86 may extend in a direction parallel to the axial direction C of the crankshaft 44. At least one guide portion 56 and at least one guided portion 86 may also extend in a direction different from the predetermined direction X.

[0096] As shown in Figure 21, the battery mounting portion 52 and at least one starting unit connecting portion 54 can also be integrally formed with the housing 42 of the starting unit 30. In this case, the starting unit 30 includes: a base portion 32, a frame mounting portion 34, a motor 36, and a battery mounting portion 52. The battery mounting portion 52 is provided on the base portion 32, and the battery unit 80 is detachably mounted by means of screw members 40. The starting unit 30 in Figure 21 has a body portion 60 of the battery holding device 50, which cannot be detached from the housing 42. The body portion 60 of the battery holding device 50 can also be integrally formed with the housing 42 as a single component. The body portion 60 can also be integrally formed with the housing 42 by means of adhesive or the like, or it can be embedded into the housing 42.

[0097] As shown in Figure 22, the screw component 40 may also include a nut 40B, and the battery mounting portion 52 may also include a male threaded portion 52C configured to connect the nut 40B. In this case, the first end 82A of the housing 82 of the battery unit 80 includes a through hole 82C configured to allow a portion of the male threaded portion 52C to pass through. In short, as long as the battery mounting portion 52 and the battery unit 80 are configured to allow the battery unit 80 to be mounted and detached from the frame 18 by means of the screw component 40, appropriate modifications can be made.

[0098] The female threaded portion 52A of the battery mounting portion 52 can also be constructed by means of a nut. In this case, at least a portion of the battery mounting portion 52 can be detachably mounted to the main body portion 60.

[0099] The battery holding device 50 may also omit at least one starting unit connection portion 54. In this case, the battery holding device 50 includes a battery mounting portion 52 and at least one guide portion 56, which guides the battery unit 80 in a predetermined direction X during loading and unloading. For example, the battery holding device 50 may also be mounted on the vehicle frame 18.

[0100] The battery holding device 50 includes at least one starting unit connection portion 54, at least one guide portion 56, and a limiting portion 58. The limiting portion 58 is configured to restrict the movement of the battery unit 80 in a predetermined direction X towards a first direction X1 for removing the battery unit 80. When the battery unit 80 is held in the battery holding device 50 and the starting unit 30 is connected to the manually driven vehicle 10, the limiting portion 58 is positioned between the battery unit 80 and the starting unit 30, viewed from a direction parallel to the crankshaft 44. The battery holding device 50 may further include a battery mounting portion 52 for detachably mounting the battery unit 80; alternatively, the battery holding device 50 may not have a battery mounting portion 52. When the battery holding device 50 does not have a battery mounting portion 52, for example, the vehicle frame 18 or the starting unit 30 may have a first support member supporting the first end 82A of the housing 82 of the battery unit 80. The battery unit 80 is mounted on the vehicle frame 18 by being sandwiched between the support member 76 and the first support member.

[0101] The starting unit 30 may also include a starting unit that comprises a speed changer configured to change the ratio of the rotational speed of the input rotating shaft to the rotational speed of the first rotating body. When the starting unit 30 comprises a starting unit that comprises a speed changer configured to change the ratio of the rotational speed of the input rotating shaft to the rotational speed of the first rotating body, the motor 36 may be omitted.

[0102] The expression "at least one" as used in this specification means that there are "one or more" options. For example, when there are two options, "at least one" means "only one option" or "both options". Other examples, when there are three or more options, mean "only one option" or "a combination of two or more options".

[0103] 10: Human-powered vehicle 14: Wheels 14A: Rear wheel 14B: Front wheel 16: Vehicle body 18: Chassis 18A: Downtube 18B: Seat tube 18C: Chain pull 20: Front fork 22: Opening 24: Starting Unit Installation Section 24A: Hole 26: Second Rotational Body 30: Starting Unit 32: Base section 32A: First side profile 32B: Second side profile 34: Chassis Mounting Section 34A: Hole 34B: Female thread section 35A: First chassis mounting section 35B: Second frame mounting section 36: Motor 40: Screw components 40A: Bolt 40B: Nut 42: Outer shell 42A: First hole 42B: Second hole 42C: Female thread section 44: Crankshaft 44A: First end 44B: Second end 46: Output Section 46A: First Rotating Body Mounting Section 48: Connector Section 50: Battery retention device 52: Battery mounting section 52A: Female thread section 52B: Through hole 52C: Male thread section 54: Starting unit connection part 54A: Hole 56: Guidance Department 56A: First Guiding Section 56B: Second Guiding Section 58: Restriction Section 58A: Claw 60: Ontology part 60A: First end 60B: Second end 60C: Configuration Department 60D: Insert Component 60E: concave part 62: Installation components 62A: Male thread section 62B: Tool engagement part 64: Covering section 66: Operations Department 68: Lever component 70A: Force application section 70B: Lever application section 72: Shaft members 74: Control components 76: Supporting components 76A:Main body part 76B: Installation Department 76C: Contact area 76D:convex part 78: Buffer section 78A: Plunger 80: Battery Unit 80A: First end 82: Outer shell 82A: First end 82B: Second end 82C: Through hole 82D: Protrusion 82E: Side profile 82F: First side profile 82G: Second side profile 82H: Third side profile 82J: Fourth side profile 84: Battery Components 86: Guided Department 86A: First Guided Unit 86B: Second Guided Part 88: Electrical Connector 90: Engaging part 90A: concave part 100: Electrical Wiring Department 102: First Connector 104: Second Connector 106: Cable B: Length direction C: Axial direction P1: First position P2: Second position X: Direction X1: First direction X2: Second direction

Claims

1. A battery holding device, which is separately formed from the frame of a human-powered vehicle, and includes: a battery mounting portion for detachably mounting a battery cell by means of a screw member; and the battery mounting portion being integrally formed with a housing of a starting unit, wherein the starting unit rotatably supports the crankshaft of the human-powered vehicle; the housing of the starting unit includes a first hole and a second hole for rotatably supporting the crankshaft.

2. The battery holding device of claim 1, further comprising at least one guide portion that guides the battery unit in a predetermined direction when the battery unit is loaded or unloaded from the aforementioned battery mounting portion.

3. The battery holding device of claim 1, wherein the aforementioned screw component comprises at least one bolt and a nut, and the aforementioned battery mounting portion comprises at least one of the following elements: a female thread portion configured for connection of the aforementioned bolt; a male thread portion configured for connection of the aforementioned nut; and a through hole configured for passage of a portion of the aforementioned bolt.

4. The battery holding device of claim 2, wherein the aforementioned screw component includes at least one bolt and a nut, and the aforementioned battery mounting portion includes at least one of the following elements: a female thread portion configured for connection to the aforementioned bolt; a male thread portion configured for connection to the aforementioned nut; and a through hole configured for passage of a portion of the aforementioned bolt; wherein the aforementioned female thread portion, the aforementioned male thread portion, and the aforementioned through hole extend in at least one direction parallel to the aforementioned predetermined direction.

5. The battery holding device as claimed in claim 2, wherein the aforementioned predetermined direction is not parallel to the axial direction of the aforementioned crankshaft.

6. The battery holding device as claimed in claim 5, wherein the aforementioned predetermined direction is orthogonal to the direction parallel to the axial direction of the aforementioned crankshaft.

7. The battery holding device of claim 2, wherein the battery mounting portion is configured such that the length direction of the battery cell is parallel to the predetermined direction for mounting the battery cell.

8. The battery holding device as claimed in claim 2, wherein the aforementioned predetermined direction is parallel to the extension direction of the downtube or seat tube of the aforementioned frame.

9. A battery holding device, which is separately formed from the frame of a human-powered vehicle, and comprises: a battery mounting portion for detachably mounting a battery unit by means of a screw member, such that the battery unit receives the screw member; and at least one guide portion for guiding the battery unit in a predetermined direction when the battery unit is mounted or detached from the battery mounting portion and when the battery mounting portion and the at least one guide portion are connected to the frame, wherein the direction in which the screw member is removed from the battery mounting portion is substantially parallel to the predetermined direction, and the battery mounting portion and the at least one guide portion are integrally formed; the length of the at least one guide portion extends in a direction parallel to the predetermined direction, and the height and width of the at least one guide portion are perpendicular to the predetermined direction, and the length of the at least one guide portion is greater than its height and width.

10. The battery holding device of claim 9, wherein the aforementioned screw component comprises at least one bolt and a nut, and the aforementioned battery mounting portion comprises at least one of the following elements: a female thread portion configured for connection of the aforementioned bolt; a male thread portion configured for connection of the aforementioned nut; and a through hole configured for passage of a portion of the aforementioned bolt.

11. The battery holding device of claim 10, wherein at least one of the aforementioned female thread portion, the aforementioned male thread portion, and the aforementioned through hole extends in the aforementioned predetermined direction.

12. The battery holding device of claim 2, further comprising a limiting portion configured to limit the movement of the battery cell in the first direction in which the battery cell is detached from the battery mounting portion in the predetermined direction.

13. A battery holding device formed separately from the frame of a human-powered vehicle, the human-powered vehicle including the frame, the frame including a seat tube and a downtube, a front fork directly connected to the frame, and a handlebar connected to the front fork, wherein the battery holding device includes: at least one starting unit connection portion connected to a starting unit, the starting unit rotatably supporting the crankshaft of the human-powered vehicle, the at least one starting unit connection portion being configured to be connected to the starting unit without being directly connected to the frame of the human-powered vehicle; at least one guide portion guiding the battery unit in a predetermined direction when the battery unit is installed or removed from the battery mounting portion; and a limiting portion configured to limit the movement of the battery unit in a first direction prior to the predetermined direction of removal from the battery mounting portion; the limiting portion being disposed between the battery unit and the starting unit when the battery unit is held in the battery holding device and the starting unit is connected to the human-powered vehicle, viewed from a direction parallel to the crankshaft.

14. The battery holding device of claim 12, wherein the aforementioned limiting part is configured to move between a first position that restricts the movement of the aforementioned battery cell and a second position that does not restrict the movement of the aforementioned battery cell.

15. The battery holding device of claim 14, further comprising an operating part operable of the aforementioned limiting part, the operating part including a lever member that rotates about a predetermined axis of rotation.

16. The battery holding device of claim 15, wherein at least a portion of the aforementioned operating part is disposed at a position covered by the electrical wiring portion electrically connected to the aforementioned battery cell.

17. The battery holding device of claim 16, wherein the aforementioned predetermined axis of rotation extends perpendicular to the aforementioned predetermined direction.

18. The battery holding device of claim 14, further comprising a force-applying part that applies force to the aforementioned limiting part from the aforementioned second position toward the aforementioned first position.

19. The battery holding device of claim 13, further comprising a battery mounting portion which is detachably mounted on the aforementioned battery unit.

20. The battery holding device of claim 12, wherein the aforementioned battery mounting portion is disposed downstream of the aforementioned limiting portion in the aforementioned first direction.

21. The battery holding device of claim 12, wherein the aforementioned battery mounting portion is disposed downstream of the aforementioned at least one guide portion in the aforementioned first direction.

22. The battery holding device of claim 1, wherein a battery mounting portion is provided, wherein the battery unit is detachably mounted by means of screw members; at least a portion of the battery mounting portion is located below the crankshaft, the starting unit is connected to the frame, and all wheels of the human-powered vehicle are in contact with the horizontal ground.

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