Switchgear for a human-powered vehicle and component for a human-powered vehicle

Abstract

A switching mechanism 40 for a human-powered vehicle 10 comprises a base element 42 configured to be attached to a frame 14 of the human-powered vehicle 10, a movable element 44 movable relative to the base element 42, and a connecting mechanism 46 movably connecting the movable element 44 to the base element 42, wherein the connecting mechanism 46 includes a first connecting element 50 and a second connecting element 52, the second connecting element 52 at least partially superimposing the first connecting element 50 in an attached state in which the switching mechanism 40 is attached to the frame 14, along a direction in which the base element 42 points to a median plane 14P of the frame 14.and wherein the connecting mechanism 46 pivotably couples the first connecting element 50 and the movable element 44 about a first axis of rotation of the first connecting pin 54C of a first connecting pin 54, and a roller assembly 48 which is rotatably attached to the movable element 44 about a roller assembly pivot axis 48C. The roller assembly 48 includes a first roller 56 and a second roller 58. The first roller 56 is rotatable about an axis of rotation of the first roller 56C. The second roller 58 is rotatable about an axis of rotation of the second roller 58C. The axis of rotation of the second roller 58C is further from the roller assembly pivot axis 48C than the axis of rotation of the first roller 56C. The first roller 56 encloses a median plane of the first roller 56P which is perpendicular to the axis of rotation of the first roller 56C. The first connecting pin 54 encloses a first end face of the first connecting pin 54A and a second end face of the first connecting pin 54B,which is located axially from the first end face of the first connecting pin 54A with respect to the first connecting pin's axis of rotation 54C. The first end face of the first connecting pin 54A, when installed, is closer to a rear wheel axle 12C of a rear wheel 12 of the human-propelled vehicle 10 than the second end face of the first connecting pin 54B. The axis of rotation of the first roller 56C is located at a positiona connecting pin reference plane 54P is located at a pivot distance L1 in a radial direction with respect to the axis of rotation of the first roller 56C, which is located from the roller assembly pivot axis 48C. A connecting pin reference plane 54P is parallel to the center plane of the first roller 56P and passes through a first intersection point P1 of the first connecting pin rotation axis 54C and the first end face of the first connecting pin 54A. The connecting pin reference plane 54P is located at a planar distance L2 in an axial direction with respect to the axis of rotation of the first roller 56C, from the center plane of the first roller 56P. A first value obtained by dividing the planar distance L2 by the pivot distance L1 is 0.4 or less.

Description

[0001] The present invention relates to a switching mechanism for a human-powered vehicle and a component for a human-powered vehicle.

[0002] An example of a switching mechanism for a human-powered vehicle is disclosed in US 2018 / 0 194 433 A1.

[0003] One object of the present invention is to provide a switching mechanism and a component for a human-powered vehicle that are adapted to rear sprockets with a large gear ratio range.

[0004] A rear derailleur according to a first aspect of the present invention is for a human-powered vehicle. The rear derailleur comprises a base member configured to be attached to a frame of the human-powered vehicle, a movable member movable relative to the base member, and a linking mechanism movably connecting the movable member to the base member. The linking mechanism includes a first linking member and a second linking member. The second linking member at least partially overlaps the first linking member in an attached state in which the rear derailleur is attached to the frame, viewed along a direction in which the base member points toward a center plane of the frame.and wherein the connecting mechanism pivotably couples the first connecting element and the movable element about a first axis of rotation of the first connecting pin of a first connecting pin, and a roller assembly rotatably mounted on the movable element about a roller assembly pivot axis. The roller assembly includes a first roller and a second roller. The first roller is rotatable about an axis of rotation of the first roller. The second roller is rotatable about an axis of rotation of the second roller. The axis of rotation of the second roller is farther from the roller assembly pivot axis than the axis of rotation of the first roller. The first roller includes a median plane of the first roller that is perpendicular to the axis of rotation of the first roller. The first connecting pin includes a first end face of the first connecting pin and a second end face of the first connecting pin.which is located axially from the first end face of the first connecting pin with respect to the first connecting pin's axis of rotation. The first end face of the first connecting pin, when installed, is closer to a rear wheel axle of a rear wheel of the human-propelled vehicle than the second end face of the first connecting pin. The axis of rotation of the first roller is located at a positiona connecting pin reference plane is located at a pivot distance in a radial direction relative to the axis of rotation of the first roller, from the roller assembly pivot axis. A connecting pin reference plane is parallel to the center plane of the first roller and passes through a first intersection of the first connecting pin's axis of rotation and the first end face of the first connecting pin. The connecting pin reference plane is located at a planar distance in an axial direction relative to the axis of rotation of the first roller, from the center plane of the first roller. A first value obtained by dividing the planar distance by the pivot distance is 0.4 or less.

[0005] In the rear derailleur according to the first aspect, the value resulting from dividing the planar distance by the pivot distance is 0.4 or less. This limits interference between the linkage mechanism and the sprockets, while simultaneously limiting the protrusion of the movable member in a direction away from the center plane of the frame of the human-powered vehicle. Thus, the rear derailleur is adapted to rear sprockets with a wide gear ratio range.

[0006] According to a second aspect of the present invention, the derailleur according to the first aspect is designed such that the roller assembly pivot axis is offset relative to the axis of rotation of the first roller and the axis of rotation of the second roller. In the derailleur according to the second aspect, the roller assembly pivot axis is offset relative to the axis of rotation of the first roller and the axis of rotation of the second roller. This increases the amount of movement of the first roller in a radial direction of the sprockets when the roller assembly rotates about the roller assembly pivot axis in a state where the derailleur is attached to the human-propelled vehicle. In this way, the derailleur is adapted to a sprocket assembly with a large gear ratio range, while the projection of the moving element in a direction away from the center plane of the frame of the human-propelled vehicle is limited.

[0007] According to a third aspect of the present invention, the rear derailleur according to the first or second aspect is configured such that the first value is 0.35 or less. The rear derailleur according to the third aspect is adapted to a sprocket assembly with a wide gear ratio range, wherein the protrusion of the movable member is limited in a direction away from the center plane of the frame of the human-powered vehicle.

[0008] According to a fourth aspect of the present invention, the derailleur according to one of the first to third aspects is designed such that the first value is 0.14 or more. With the derailleur according to the fourth aspect, mutual interference between the linkage mechanism and the sprocket assembly is avoided in a state where rear sprockets with a large gear ratio range are coupled to a human-powered vehicle and the derailleur is attached to the human-powered vehicle. Furthermore, the projection of the moving element in a direction away from the central plane of the frame of the human-powered vehicle is limited.

[0009] According to a fifth aspect of the present invention, the derailleur according to the fourth aspect is designed such that the first value is 0.29 or greater. With the derailleur according to the fifth aspect, mutual interference between the linkage mechanism and the sprocket assembly is avoided in a state where rear sprockets with a wide gear ratio are coupled to a human-powered vehicle and the derailleur is mounted on the human-powered vehicle. Furthermore, the projection of the moving element in a direction away from the central plane of the frame of the human-powered vehicle is limited.

[0010] According to a sixth aspect of the present invention, the derailleur according to any one of the first to fifth aspects is designed such that a first angle at an intersection between the first connecting pin pivot axis and a plane perpendicular to the rear wheel axle is 0 degrees or more and 45 degrees or less when the derailleur is mounted on the frame of the human-powered vehicle. In the derailleur according to the sixth aspect, the first angle is 0 degrees or more and 45 degrees or less. This increases the amount of movement of the moving element in a radial direction of the sprockets when the moving element is moving relative to the base element. In this way, the derailleur is suitable for rear sprockets with a wide gear ratio range.

[0011] According to a seventh aspect of the present invention, the derailleur according to one of the first to sixth aspects is designed such that the axis of rotation of the first pulley and the axis of rotation of the second pulley are separated by a distance of 30 mm or more and 100 mm or less. In the derailleur according to the seventh aspect, the axis of rotation of the first pulley and the axis of rotation of the second pulley are separated by a distance of 30 mm or more and 100 mm or less. This results in the chain being wound over a large circumference. The derailleur is adapted to rear sprockets with a wide gear ratio range, avoiding contact with the ground when the derailleur is mounted on the human-powered vehicle.

[0012] According to an eighth aspect of the present invention, the switching mechanism according to one of the first to seventh aspects further comprises a motor unit which is connected to the connecting mechanism and configured to move the movable element relative to the base element. The switching mechanism according to the eighth aspect is expediently actuated by the motor unit.

[0013] According to a ninth aspect of the present invention, the switching mechanism according to the eighth aspect further comprises a power supply that provides electrical energy to the motor unit. The motor unit is arranged at one end of the base element, the movable element, and the connecting mechanism. The power supply is arranged at another end of the base element, the movable element, and the connecting mechanism. In the switching mechanism according to the ninth aspect, the motor unit and the power supply are advantageously arranged on the switching mechanism.

[0014] According to a tenth aspect of the present invention, the switching mechanism according to the ninth aspect is configured to accommodate a battery. The switching mechanism according to the tenth aspect supplies the motor unit with electrical energy in a suitable manner.

[0015] According to an eleventh aspect of the present invention, the power supply in the switching device according to the ninth aspect is configured to be connectable to an electrical power line connected to an external power source. In the switching device according to the eleventh aspect, electrical energy is supplied to the motor unit in a suitable manner via the electrical power line.

[0016] According to a twelfth aspect of the present invention, the switching mechanism according to one of the ninth to eleventh aspects is designed such that the motor unit is arranged on the base element. In the switching mechanism according to the twelfth aspect, the motor unit is arranged on the base element.

[0017] According to a thirteenth aspect of the present invention, the switching mechanism according to the ninth or tenth aspect is designed such that the motor unit is arranged on the second connecting element. In the switching mechanism according to the thirteenth aspect, the motor unit is arranged on the second connecting element. This results in a distance between the first connecting element and the sprocket assembly when the switching mechanism is attached to the human-propelled vehicle.

[0018] According to a fourteenth aspect of the present invention, the switching mechanism according to one of the ninth to thirteenth aspects is designed such that the power supply is arranged at the base element. In the switching mechanism according to the fourteenth aspect, the power supply is arranged at the base element.

[0019] According to a fifteenth aspect of the present invention, the switching mechanism according to one of the ninth to thirteenth aspects is designed such that the power supply is arranged at the second connecting element. In the switching mechanism according to the fifteenth aspect, the power supply is arranged at the second connecting element. This results in a distance between the first connecting element and the sprocket assembly when the switching mechanism is attached to the human-propelled vehicle.

[0020] According to a sixteenth aspect of the present invention, the switching mechanism according to one of the eighth to fifteenth aspects is configured such that the motor unit includes a wireless communication unit. The wireless communication unit includes at least one wireless antenna. The switching mechanism according to the sixteenth aspect is configured to carry out wireless communication via at least one antenna.

[0021] According to a seventeenth aspect of the present invention, the switching mechanism according to the sixteenth aspect is configured such that the at least one wireless antenna includes a first wireless antenna for communication with a first component and a second wireless antenna for communication with a second component. The switching mechanism according to the seventeenth aspect is configured to perform wireless communication with the first component and the second component via the first wireless antenna and the second wireless antenna.

[0022] According to an eighteenth aspect of the present invention, the switching device according to any one of the first to sixteenth aspects further comprises a communication line connection which is connected to a communication line for communication with a component of the human-powered vehicle. The switching device according to the eighteenth aspect is configured to communicate with the component of a human-powered vehicle via the communication line connection.

[0023] According to a nineteenth aspect of the present invention, the rear derailleur according to any one of the first to eighteenth aspects is configured such that the base member includes a first attachment end coaxially attached to the rear wheel and a second attachment end attached to the link mechanism. The first attachment end includes a first arm and a second arm. The first arm is separated from the second arm in an axial direction of an axis of the rear wheel. The rear derailleur according to the nineteenth aspect is suitably attached to the frame by the first arm and the second arm, which are separated from each other in the axial direction of the axis of the rear wheel.

[0024] According to a twentieth aspect of the present invention, the switching mechanism according to any one of the first to nineteenth aspects further comprises a rotating shaft attached to the roller assembly and rotatably coupled to the movable element about the roller assembly pivot axis, and a damping structure arranged on the movable element around the rotating shaft and configured to generate rotational resistance to one side in one direction of rotation of the roller assembly. In the switching mechanism according to the twentieth aspect, the damping structure limits the rotational speed of the roller assembly in one direction of rotation.

[0025] A component according to a twenty-first aspect of the present invention is for a human-powered vehicle. The component comprises the derailleur of the human-powered vehicle according to any one of the first to twenty aspects and a rear sprocket assembly that can be attached to the human-powered vehicle so that it is rotatable about a rear axle of a rear wheel of the human-powered vehicle. The rear sprocket assembly includes rear sprockets that differ in the number of teeth. One of the rear sprockets with the largest number of teeth has 45 or more teeth.

[0026] In the component according to the twenty-first aspect, the derailleur is adapted to a rear sprocket assembly that includes rear sprockets, the one with the largest number of teeth of which has 45 or more teeth.

[0027] A component according to a twenty-second aspect of the present invention is for a human-powered vehicle. The component comprises the derailleur of the human-powered vehicle according to any one of the first to twenty aspects and a rear sprocket assembly that can be attached to the human-powered vehicle so that it is rotatable about a rear axle of a rear wheel of the human-powered vehicle. The rear sprocket assembly includes rear sprockets that differ in outside diameter. One of the rear sprockets with the largest outside diameter has a radial length of 90 mm or more in a radial direction.

[0028] In the component according to the twenty-second aspect, the derailleur is adapted to a rear sprocket assembly that includes rear sprockets, the one with the largest outer diameter of which has a radial length of 90 mm or more in a radial direction.

[0029] A component according to a twenty-third aspect of the present invention is for a human-powered vehicle. The component includes the transmission of the human-powered vehicle according to any one of the first to twentieth aspects and a rear sprocket assembly that can be mounted on the human-powered vehicle so as to be rotatable about a rear wheel axle of a rear wheel of the human-powered vehicle. The rear sprocket assembly includes rear sprockets that differ from each other in the number of teeth. A value obtained by dividing the number of teeth of one of the rear sprockets with the largest number of teeth by the number of teeth of one of the rear sprockets with the smallest number of teeth is 4.5 or more.

[0030] In the component according to the twenty-third aspect, the rear derailleur is adapted to a rear sprocket assembly in which a value obtained by dividing the number of teeth of the one of the rear sprockets having the largest number of teeth by the number of teeth of the one of the rear sprockets having the smallest number of teeth is 4.5 or more.

[0031] A component according to a twenty-fourth aspect of the present invention is for a human-powered vehicle. The component comprises the shifting mechanism of the human-powered vehicle according to the eighth aspect and a rear sprocket assembly that can be attached to the human-powered vehicle so that it is rotatable about a rear axle of a rear wheel of the human-powered vehicle. The shifting mechanism further includes a power supply that provides electrical energy to the motor unit. The motor unit and the power supply are arranged on a base element, the movable element, and the second connecting element.

[0032] In the component according to the twenty-fourth aspect, the rear derailleur is adapted to a rear sprocket assembly having a wide gear range.

[0033] According to a twenty-fifth aspect of the present invention, the component according to the twenty-fourth aspect is configured such that the motor unit is arranged on one of the base element and the second connecting element. The power supply is arranged on the other of the base element and the second connecting element. In the component according to the twenty-fifth aspect, the motor unit and the power supply are advantageously arranged.

[0034] A switching mechanism according to a twenty-sixth aspect of the present invention is for a human-powered vehicle. The switching mechanism comprises a base element configured to be attached to a frame of the human-powered vehicle, a movable element movable relative to the base element, and a connecting mechanism movably connecting the movable element to the base element, wherein the connecting mechanism includes a first connecting element and a second connecting element, the second connecting element at least partially superimposing the first connecting element in a state in which the switching mechanism is attached to the frame, along a direction in which the base element points to a median plane of the frame.and wherein the connecting mechanism pivotably couples the first connecting element and the movable element about a first axis of rotation of the first connecting pin of a first connecting pin, and a roller assembly rotatably mounted on the movable element about a roller assembly pivot axis. The roller assembly includes a first roller rotatable about an axis of rotation of the first roller. The first roller includes a median plane of the first roller perpendicular to the axis of rotation of the first roller. The first connecting pin includes a first end face of the connecting pin and a second end face of the first connecting pin.which is located axially from the first end face of the first connecting pin with respect to the first connecting pin's axis of rotation. The first end face of the first connecting pin is located closer to a rear wheel axle of a rear wheel of the human-propelled vehicle than the second end face of the first connecting pin in the state thatin which the switching mechanism is attached to the frame of the human-propelled vehicle. A connecting pin reference plane is parallel to the median plane of the first roller and passes through a first intersection of the first connecting pin's axis of rotation and the first end face of the first connecting pin. The connecting pin reference plane is located closer to the median plane in a direction of the roller assembly's pivot axis than a reference plane of the moving element. The connecting pin reference plane is parallel to the median plane of the first roller and passes through a second intersection of the roller assembly's pivot axis and a surface of the moving element facing the roller assembly, which is oriented towards the roller assembly in a state in which the roller assembly is attached to the moving element.

[0035] In the derailleur according to aspect twenty-six, the connecting pin reference plane is closer to the median plane in the direction of the roller assembly pivot axis than the reference plane of the moving element. In this way, the derailleur is adapted to a sprocket assembly with a wide gear range. Furthermore, in a situation where a rear sprocket assembly with a wide gear range is coupled to a human-powered vehicle and the derailleur is attached to the human-powered vehicle, mutual interference between the linkage mechanism and the sprocket assembly is limited.

[0036] The shifting mechanism for a human-powered vehicle and the component for a human-powered vehicle according to the present invention are adapted to sprockets with a large gear ratio range.

[0037] A more complete understanding of the invention and its many associated advantages is easily achieved by referring to the following detailed description of embodiments of the present invention in conjunction with the accompanying drawings. Selected embodiments of the present invention will now be explained with reference to the drawings, wherein: Fig. 1 a side view of a human-powered vehicle with an embodiment of a switching mechanism for a human-powered vehicle and a component for a human-powered vehicle; Fig. 2 a side view of the switching mechanism for a human-powered vehicle and the component for a human-powered vehicle, which is in Fig. 1 are shown; Fig. 3 A view from below of the switching mechanism of the human-powered vehicle and the component for a human-powered vehicle that is in Fig. 1 are shown; Fig. 4 is an enlarged view from below, showing a section of Fig. 3 shows; Fig. 5 a first perspective view of a connection mechanism of the in Fig. 1 shown switchgear for a human-powered vehicle and its environment; Fig. 6 a top view of a in Fig. The first connecting element shown in section 5 is; Fig. 7 a second perspective view of the connection mechanism of the in Fig. 1 shown switchgear of a human-powered vehicle and its environment; Fig. 8 a schematic representation of a in Fig. The damping structure shown in section 2 is; Fig. 9 a schematic representation of a in Fig. 2 shown motor unit; Fig. 10 a schematic representation of a in Fig. The torque limiting structure shown in section 5 is; Fig. 11 is a perspective view showing a linkage mechanism of a switching system for a human-powered vehicle and its environment according to a first modified example; Fig. 12 is a perspective view showing a linkage mechanism of a switching system for a human-powered vehicle and its environment according to a second modified example; Fig. 13 is a perspective view showing a linkage mechanism of a switching system for a human-powered vehicle and its environment according to a third modified example; Fig. 14 is a schematic diagram of a motor unit according to a fourth modified example; Fig. 15 is a schematic representation of an engine unit according to a fifth modified example; Fig. 16 is a perspective view of a roller assembly according to a sixth modified example; Fig. 17 a perspective view of the in Fig. The roller assembly and spokes shown in 16 are; Fig. 18 is a plan view of a transmission for a human-powered vehicle and a component for a human-powered vehicle according to a seventh modified example; Fig. 19 is a side view showing the switching mechanism for a human-powered vehicle according to the seventh modified example; Fig. 20 a front view of a boundary included in the switching mechanism for a human-powered vehicle according to the seventh modified example; Fig. 21 a perspective view of the in Fig. The boundary shown in section 20 and its surroundings is; and Fig. Figure 22 shows a view from below, showing a switchgear for a human-powered vehicle according to an eighth modified example.

[0038] Identical reference numbers denote corresponding or identical elements in the different drawings.

[0039] A switching mechanism 40 for a human-powered vehicle and a component 30 for a human-powered vehicle are now described with reference to the Fig. 1 to 10 described.

[0040] A human-powered vehicle is a vehicle with at least one wheel that is propelled by at least one human force. Human-powered vehicles include, for example, various types of bicycles, such as mountain bikes, racing bikes, city bikes, cargo bikes, handcycles, and recumbent bikes. The number of wheels on a human-powered vehicle is not limited. For example, a human-powered vehicle includes a unicycle and a vehicle with two or more wheels. A human-powered vehicle is not limited to a vehicle that can only be propelled by human force. An e-bike, which uses the power of an electric motor for propulsion in addition to human force, also includes an electric-assist bicycle that uses an electric motor to assist the rider.In all embodiments described below, the human-powered vehicle refers to a bicycle.

[0041] In this description, the frame of reference for directional information such as ‘front’, ‘back’, ‘forward’, ‘backward’, ‘left’, ‘right’, ‘sideways’, ‘up’ and ‘down’ and for other analogous directional information refers to the view of a driver looking at the handlebars from a reference position (for example, on the saddle or seat) of the human-powered vehicle.

[0042] A human-powered vehicle 10 includes a rear wheel 12 and a frame 14. The frame 14 has a median plane 14P, which is, for example, an imaginary plane that divides the frame 14 into two halves in a lateral direction of the human-powered vehicle 10. In this description, a side of the frame 14 located close to the median plane 14P in the lateral direction of the human-powered vehicle 10 is referred to as the inside. In the lateral direction of the human-powered vehicle 10, a side of the frame 14 located far from the median plane 14P is referred to as the outside.

[0043] As in the Fig. As shown in Figures 1 to 3, the human-powered vehicle 10 includes a component for a human-powered vehicle 30. The human-powered vehicle 10 includes a hub axle 16. The hub axle 16 is supported by a rear end 14A of the frame 14. The rear wheel 12 is rotatably coupled to the hub axle 16.

[0044] The human-powered vehicle 10 comprises the human-powered vehicle component 30. The human-powered vehicle component 30 includes a human-powered vehicle derailleur 40 and a rear sprocket assembly 32, which can be attached to the human-powered vehicle 10 so that it is rotatable about a rear wheel axle 12C of the rear wheel 12 of the human-powered vehicle 10. The rear sprocket assembly 32 includes rear sprockets 34 that differ in the number of teeth. In one example, among the rear sprockets 34, a sprocket 34A with the largest number of teeth TA has 45 or more teeth. In another example, the number of teeth TA is 50 or more. In another example, the number of teeth TA is 51 or more. In another example, the number of teeth TA is 52 or more. In one example, the number of teeth is TA 53 or more.For example, the number of teeth TA is 45 or more and 54 or less. Fig. Figure 2 shows, among the rear sprockets 34, only the sprocket 34A with the largest number of teeth TA and a sprocket 34B with the smallest number of teeth.

[0045] The human-powered vehicle component 30 includes a rear derailleur for a human-powered vehicle 40 and a rear sprocket assembly 32 that is attachable to the human-powered vehicle 10 for rotation about a rear wheel axle 12C of the rear wheel 12 of the human-powered vehicle 10. The rear sprocket assembly 32 includes rear sprockets 34 that differ from one another in the number of teeth. In one example, for the rear sprockets 34, a value resulting from dividing the number of teeth TA of the rear sprocket 34A with the largest number of teeth by the number of teeth TB of the sprocket 34B with the smallest number of teeth is 4.5 or more.The value obtained by dividing the number of teeth TA of the rear sprocket 34A with the largest number of teeth by the number of teeth TB of the sprocket 34B with the smallest number of teeth corresponds to the gear ratio range of the rear sprocket assembly 32. For example, the value obtained by dividing the number of teeth TA by the number of teeth TB is 4.55 or more. For example, the value obtained by dividing the number of teeth TA by the number of teeth TB is 5 or more. For example, the value obtained by dividing the number of teeth TA by the number of teeth TB is 5.1 or more. For example, the value obtained by dividing the number of teeth TA by the number of teeth TB is 5.2 or more. In one example, the value resulting from dividing the number of teeth TA by the number of teeth TB is 5.67 or more.In one example, the value resulting from dividing the number of teeth TA by the number of teeth TB is 6 or more. In another example, the value resulting from dividing the number of teeth TA by the number of teeth TB is 4.5 or more, and 7 or less.

[0046] The human-powered vehicle component 30 includes a rear derailleur for a human-powered vehicle 40 and a rear sprocket assembly 32 that is attachable to the human-powered vehicle 10 so as to be rotatable about a rear wheel axle 12C of the rear wheel 12 of the human-powered vehicle 10. In one example, the rear sprocket assembly 32 includes rear sprockets 34 that differ from each other in outer diameter. Among the rear sprockets 34, a sprocket 34C with the largest outer diameter has a radial length LX of 90 mm or more in a radial direction. The outer diameter is a length in a radial direction with respect to the rear wheel axle 12C. The rear sprockets 34 differ in length in the radial direction with respect to the rear wheel axle 12C.The radial length LX in the radial direction extends, for example, from the rear wheel axle 12C to the pitch circle. The radial length LX in the radial direction is, for example, a pitch circle radius. In one example, for rear sprockets 34, the radial length LX of sprocket 34C in the radial direction with the largest outer diameter is 100 mm or more. In another example, for rear sprockets 34, the radial length LX of sprocket 34C in the radial direction with the largest outer diameter is 102 mm or more. In another example, for rear sprockets 34, the radial length LX of sprocket 34C in the radial direction with the largest outer diameter is 104 mm or more. In another example, for rear sprockets 34, the radial length LX of sprocket 34C in the radial direction with the largest outer diameter is 105 mm or more. The sprocket 34C is the sprocket 34A.

[0047] The number of rear sprockets 34 is, for example, ten or more and fifteen or fewer. In one example, the number of rear sprockets 34 is twelve. In another example, the rear sprockets 34 are coupled to the hub axle 16 in such a way that they rotate relative to the hub axle 16. In yet another example, the rear sprockets 34 are coupled to a hub shell via a one-way coupling. The rear wheel 12 is coupled to the hub shell.

[0048] As in the Fig. 2 and Fig. 3, the human-powered vehicle transmission 40 includes a base member 42 configured to be mounted to the frame 14 of the human-powered vehicle 10, a movable member 44 movable relative to the base member 42, a linkage mechanism 46, and a roller assembly 48.

[0049] The connecting mechanism 46 movably connects the movable element 44 to the base element 42. The connecting mechanism 46 includes a first connecting element 50 and a second connecting element 52. The first connecting element 50 and the movable element 44 are pivotally coupled about a first connecting pin pivot axis 54C of a first connecting pin 54. The second connecting element 52 at least partially superimposes the first connecting element 50 in an installed state in which the switching mechanism 40 is attached to the frame 14 of the human-propelled vehicle 10, viewed along a direction in which the base element 42 points towards the median plane 14P of the frame 14.

[0050] The roller assembly 48 includes a first roller 56 and a second roller 58. The roller assembly 48 is rotatably mounted on the movable element 44 about a roller assembly pivot axis 48C. The first roller 56 is rotatable about a rotation axis of the first roller 56C. The second roller 58 is rotatable about a rotation axis of the second roller 58C, which is located further from the roller assembly pivot axis 48C than the rotation axis of the first roller 56C. The first roller 56 encloses a median plane of the first roller 56P, which is perpendicular to the rotation axis of the first roller 56C.

[0051] As in the Fig. 6 and Fig. As shown in Figure 7, the first connecting pin 54 encloses a first end face of the first connecting pin 54A and a second end face of the first connecting pin 54B, which is axially separated from the first end face of the first connecting pin 54A with respect to the first connecting pin's axis of rotation 54C. The first end face of the first connecting pin 54A is located closer to the rear wheel axle 12C of the rear wheel 12 of the human-propelled vehicle 10 than the second end face of the first connecting pin 54B in a state where the derailleur 40 is attached to the frame 14 of the human-propelled vehicle 10.

[0052] As in Fig. As shown in Figure 2, the axis of rotation of the first roller 56C is located at a position radially separated from the roller assembly pivot axis 48C by a pivot distance L1. As shown in the Fig. 3 and Fig. 4, a connecting pin reference plane 54P is spaced from the center plane of the first roller 56P at a planar distance L2 in an axial direction with respect to the rotational axis of the first roller 56C. The connecting pin reference plane 54P is parallel to the center plane of the first roller 56P and passes through a first intersection point P1. The first intersection point P1 is an intersection point of the first rotational axis of the first connecting pin 54C and the first end surface of the first connecting pin 54A. A value resulting from dividing the value entered in the Fig. 3 and Fig. 4 planar distance L2 shown through the in Fig. The swivel distance L1 shown in 2 is a first value and is 0.4 or less.

[0053] The swivel distance L1 is, for example, 15 mm or more and 55 mm or less. The planar distance L2 is, for example, 12 mm or more and 50 mm or less. In one example, the first value is 0.1 or more and 0.4 or less. In another example, the first value is 0.35 or less. In another example, the first value is 0.14 or more. In another example, the first value is 0.29 or more. In another example, the first value is 0.292.

[0054] The Fig. 3 and Fig. The connecting pin reference plane 54P shown in Figure 4 is located further away from the center plane 14P in one direction of the roller assembly swivel axis 48C than the reference plane of the movable element 44P. The reference plane of the movable element 44P is parallel to the center plane of the first roller 56P and passes through a second intersection point P2. The second intersection point P2 is an intersection of the roller assembly swivel axis 48C and a surface of the movable element 44 facing the roller assembly, which is oriented towards the roller assembly 48 in a state in which the roller assembly 48 is attached to the movable element 44.

[0055] As in the Fig. Figures 2 to 5 show, superimposed in an example in an attached state in which the derailleur 40 is attached to the frame 14 of the human-propelled vehicle 10, the second connecting element 52 at least partially overlaps the first connecting element 50 when the derailleur 40 and the human-propelled vehicle 10 are viewed from the derailleur 40 in the direction of the frame 14 in a lateral direction defined by the axial direction of the hub axle 16 of the human-propelled vehicle 10. The second connecting element 52 is attached to the human-propelled vehicle 10 such that, for example, in the lateral direction defined by the axial direction of the hub axle 16 of the human-propelled vehicle 10, the second connecting element 52 is at least partially further from the median plane 14P of the frame 14 than the first connecting element 50. The first connecting element 50 is, for example, an inner link.The second connecting element 52 is, for example, an outer member.

[0056] The base element 42 is, for example, coupled to the rear end 14A of the frame 14 of the human-powered vehicle 10. The base element 42 is, for example, coupled to the frame 14 by a bolt. The base element 42 is, for example, rigidly coupled to the frame 14.

[0057] The connecting mechanism 46 is, for example, coupled to the base element 42 and the movable element 44. In one example, the first connecting element 50 is coupled to the base element 42 and the movable element 44, and the second connecting element 52 is also coupled to the base element 42 and the movable element 44.

[0058] The first connecting member 50 has a first end 50A coupled to the movable member 44 and a second end 50B coupled to the base member 42. The first end 50A is pivotally coupled to the movable member 44 about the movable member 44. The second end 50B is pivotally coupled to the base member 42 about the base member 42.

[0059] The switching mechanism 40 encloses the first connecting pin 54. The first connecting pin 54 couples the first end 50A of the first connecting element 50 and the movable element 44 pivotally about the first connecting pin pivot axis 54C of the first connecting pin 54. The switching mechanism 40 encloses a second connecting pin 60. The second connecting pin 60 couples the second end 50B of the first connecting element 50 and the base element 42 pivotally about the second connecting pin pivot axis of the second connecting pin 60.

[0060] As in Fig. 6, the first connecting element 50 may include a first part 50X and a second part 50Y. The first part 50X and the second part 50Y separate the first connecting element 50 in a direction perpendicular to the first connecting pin rotation axis 54C. The first part 50X is coupled to the second part 50Y, for example, by a bolt.

[0061] As in the Fig. As shown in Figures 2 through 7, the second connecting member 52 includes a first end 52A coupled to the movable member 44 and a second end 52B coupled to the base member 42. The first end 52A is pivotally coupled to the movable member 44 about the movable member 44. The second end 52B is pivotally coupled to the base member 42 about the base member 42.

[0062] The switching mechanism 40 includes a third connecting pin 62. The third connecting pin 62 couples the first end 52A of the second connecting element 52 and the movable element 44 pivotally about a third connecting pin pivot axis of the third connecting pin 62. The switching mechanism 40 includes a fourth connecting pin 64. The fourth connecting pin 64 couples the second end 52B of the second connecting element 52 and the base element 42 pivotally about a fourth connecting pin pivot axis of the fourth connecting pin 64.

[0063] As in the Fig. 3 and Fig. 4, a first angle D1 at an intersection point between the first link pin rotation axis 54C and a rear wheel axis perpendicular plane 12S perpendicular to the rear wheel axis 12C is 0 degrees or more and 45 degrees or less in a state where the rear derailleur 40 is attached to the frame 14 of the human-powered vehicle 10. The rear wheel axis perpendicular plane 12S is, for example, parallel to the front-rear direction of the human-powered vehicle 10. The first angle D1 is an acute angle between the rear wheel axis perpendicular plane 12S and the first link pin rotation axis 54C. In one example, the first angle D1 is 1 degree or more and 45 degrees or less. In one example, the first angle D1 is 10 degrees or more and 40 degrees or less. The rear axle perpendicular plane 12S is parallel to the median plane 14P. The first angle D1 can be 0 degrees.As the first angle D1 increases, the movable element 44 moves slightly relative to the base element 42. In a case where the human-powered vehicle 10 is a mountain bike, the first angle D1 is likely to be smaller than in a case where the human-powered vehicle 10 is a racing bike.

[0064] The derailleur 40 moves a chain 18 from one rear sprocket 34A to another rear sprocket 34A in accordance with the movement of the moving element 44 relative to the base element 42. The moving element 44 is movable relative to the base element 42 at least between an outermost shift position and an innermost shift position. The outermost shift position refers to a position in which the chain 18 of the human-powered vehicle 10 is engaged with the sprocket 34B with the fewest teeth. The innermost shift position refers to a position in which the chain 18 of the human-powered vehicle 10 is engaged with the rear sprocket 34A with the most teeth.The outermost shift position refers to a rest position of the moving element 44 relative to the base element 42, which corresponds to a rest position of the first roller 56, in which the first roller 56 maintains a mesh state of the chain 18 with the sprocket 34B with the fewest teeth. The innermost shift position refers to a rest position of the moving element 44 relative to the base element 42, which corresponds to a rest position of the first roller 56, in which the first roller 56 maintains a mesh state of the chain 18 with the sprocket 34A with the most teeth.

[0065] The roller assembly 48 includes a first guide plate 66 and a second guide plate 68. The second guide plate 68 is, for example, mounted on the human-powered vehicle 10 such that, in the lateral direction of the human-powered vehicle 10, it is located further from the center plane 14P of the frame 14 than the first guide plate 66. The first roller 56 and the second roller 58 are arranged between the first guide plate 66 and the second guide plate 68. The first guide plate 66 and the second guide plate 68 rotatably support the first roller 56 relative to both the first and second guide plates 68. The first guide plate 66 and the second guide plate 68 rotatably support the second roller 58 relative to both the first and second guide plates 66.

[0066] The roller assembly swivel axis 48C is, for example, offset relative to the axis of rotation of the first roller 56C and the axis of rotation of the second roller 58C. The roller assembly swivel axis 48C is, for example, parallel to the axis of rotation of the first roller 56C and the axis of rotation of the second roller 58C.

[0067] The Fig. The axis of rotation of the first roller 56C and the axis of rotation of the second roller 58C, as shown in Figure 2, are separated by a distance LP of, for example, 30 mm or more and 100 mm or less. In one example, the distance LP is 50 mm or more and 80 mm or less.

[0068] The switching mechanism 40 further includes, for example, a rotating shaft 70 and a damping structure 72, which are in Fig. Figure 8 shows the damping structure 72 coupled to the roller assembly 48. The rotary shaft 70 is rotatably coupled to the movable element 44 about the roller assembly pivot axis 48C. The damping structure 72 is arranged on the movable element 44 around the rotary shaft 70. The damping structure 72 is designed to generate rotational resistance to one side in one direction of rotation of the roller assembly 48. The rotary shaft 70 can be the first connecting pin 54.

[0069] The Fig. For example, the damping structure 72 shown in Fig. 8 exerts a rotational resistance force on the roller assembly 48 in a case where the roller assembly 48 rotates in a second rotational direction R2 opposite to a first rotational direction R1.

[0070] The damping structure 72 is, for example, arranged in an inner cavity of the movable element 44. The damping structure 72 is configured, for example, to engage frictionally with the rotating shaft 70. The damping structure 72 includes, for example, a one-way coupling 72A. The one-way coupling 72A is arranged between the rotating shaft 70 and the movable element 44. In a case where the roller assembly 48 rotates relative to the movable element 44 in the second direction of rotation R2 about the roller assembly pivot axis 48C, the rotating shaft 70 rotates integrally with the one-way coupling 72A. In a case where the roller assembly 48 rotates relative to the movable element 44 in the first direction of rotation R1 about the roller assembly pivot axis 48C, the rotating shaft 70 rotates relative to the one-way coupling 72A. The one-way coupling 72A is, for example, a roller coupling.

[0071] The damping structure 72, for example, includes a strip of a resisting element 72B. The resisting element 72B is arranged between the one-way coupling 72A and the movable element 44 and extends around an outer circumferential section of the one-way coupling 72A. The resisting element 72B attracts the outer circumferential section of the one-way coupling 72A to engage with the one-way coupling 72A in a frictional engagement. In a case where the roller assembly 48 rotates in the second direction of rotation R2, the rotating shaft 70 rotates integrally with the one-way coupling 72A. Thus, the resisting element 72B exerts a rotational resistance force on the roller assembly 48.

[0072] The damping structure 72 includes, for example, an actuating portion 72C. The actuating portion 72C is configured to adjust the rotational resistance force exerted on the roller assembly 48 when the roller assembly 48 rotates in the second rotational direction R2. The actuating portion 72C includes, for example, a bolt. The fastening amount of the bolt is changed to change the tightening force of the resistance-applying member 72B exerted on the outer peripheral portion of the one-way clutch 72A.

[0073] As in the Fig. 5 and Fig. As shown in Figure 9, the switching mechanism 40 further includes, for example, a motor unit 74. The motor unit 74 is configured to move the movable element 44 relative to the base element 42. The motor unit 74 is connected, for example, to the connecting mechanism 46. The motor unit 74 performs, for example, a switching operation of the switching mechanism 40. The motor unit 74 pivots, for example, the movable element 44 about a pivot axis, around which the Fig. 1 to move the chain 18 shown from one rear sprocket 34 to another rear sprocket 34.

[0074] As in Fig. As shown in Figure 9, the switching mechanism 40 further includes, for example, a power supply 76 which supplies the motor unit 74 with electrical energy. The motor unit 74 is arranged on one side of the base element 42, the movable element 44 and the connecting mechanism 46. The power supply 76 is arranged on another side of the base element 42, the movable element 44 and the connecting mechanism 46.

[0075] In the present embodiment, the motor unit 74 is arranged on the base element 42. In one example, the motor unit 74 is arranged in an inner cavity of the base element 42. The motor unit 74 is configured, for example, to pivot the first connecting element 50 about the second connecting pin 60. The motor unit 74 can be configured to pivot the second connecting element 52 about the fourth connecting pin 64.

[0076] In the present embodiment, the power supply 76 is arranged on the base element 42. The power supply 76 is configured, for example, to accommodate a battery 78. The power supply 76 is arranged, for example, in the inner cavity of the base element 42.

[0077] The motor unit 74 includes, for example, a wireless communication unit 80. The wireless communication unit 80 includes at least one wireless antenna 82. The at least one wireless antenna 82 includes a first wireless antenna 82A for communication with a first component 20X and a second wireless antenna 82B for communication with a second component 20Y. In one example, the first component 20X differs from the second component 20Y.

[0078] At least one of the first component 20X and the second component 20Y is, for example, a switching actuator. At least one of the first component 20X and the second component 20Y can be at least one of a battery unit, a bicycle computer, a display, and a drive unit. The switching actuator transmits, for example, a switching signal to the motor unit 74. In a case where the switching signal is received by the wireless communication unit 80, the motor unit 74 pivots the connecting mechanism 46 in accordance with the switching signal.

[0079] The motor unit 74, for example, transmits information relating to the switching mechanism 40 to at least one of the first component 20X and the second component 20Y. The information relating to the switching mechanism 40 includes, for example, at least one of the identification information of the switching mechanism 40 and information relating to an actuation position of the switching mechanism 40.

[0080] As in the Fig. 5 and Fig. As shown in Figure 10, the switching mechanism 40 further includes, for example, a torque limiting mechanism 86. The torque limiting mechanism 86 limits the load on the motor unit 74. The torque limiting mechanism 86 is arranged, for example, between an output shaft 74A of the motor unit 74 and the connecting mechanism 46. The torque limiting mechanism 86 is arranged between the output shaft 74A of the motor unit 74 and the first connecting element 50.

[0081] The torque limiting mechanism 86 includes, for example, a cam 88, a cam receiver 90, and a biasing member 92. The cam 88 is coupled, for example, to the output shaft 74A. The cam 88 is coupled, for example, to the output shaft 74A such that it rotates together with the output shaft 74A. The cam receiver 90 is, for example, arm-shaped. The cam receiver 90 connects, for example, the second connecting pin 60 and the first connecting member 50. The biasing member 92 is, for example, arranged between the cam receiver 90 and the first connecting member 50. The cam receiver 90 is connected to the first connecting member 50 via the biasing member 92.

[0082] The cam 88 includes, for example, a cam surface 88A. The cam surface 88A includes, for example, an engagement section 88B. The cam receptacle 90 includes, for example, an engagement section 90A that can engage with the engagement section 88B. In one example, one of the engagement section 88B and the engagement section 90A is a recess and the other is a projection. In the present embodiment, the engagement section 88B is a recess and the engagement section 90A is a projection. When the engagement section 88B is engaged with the engagement section 90A, a torque from the output shaft 74A is transmitted to the cam receptacle 90. The cam receptacle 90 pivots about the second connecting pin 60. As a result, the first connecting element 50 pivots about the second connecting pin 60.

[0083] The cam surface 88A includes a first region 88X, located on one side R3 of the engagement section 88B in the direction of rotation, and a second region 88Y, located on the other side R4 of the engagement section 88B in the direction of rotation. The first region 88X is, for example, arc-shaped around the axis of rotation of the output shaft 74A. The second region 88Y includes a section adjacent to the engagement section 88B, which is, for example, arc-shaped and eccentric around the axis of rotation of the output shaft 74A. The section of the second region 88Y adjacent to the engagement section 88B is, for example, separated from the axis of rotation of the output shaft 74A by a distance that is shorter than that of a section of the first region 88X adjacent to the engagement section 88B.

[0084] The cam 88 and the cam receptacle 90 are designed to release the engagement section 88B from the engagement section 90A in the event of an impact on the switching mechanism 40. In such an event, the engagement section 90A moves from the engagement section 88B to the second area 88Y. This movement of the engagement section 90A from the engagement section 88B to the second area 88Y releases the engagement section 88B from the engagement section 90A. Releasing the engagement section 88B from the engagement section 90A limits the transmission of torque from the first connecting element 50 to the motor unit 74. Thus, in the event of an impact on the switching mechanism 40, the load on the motor unit 74 is limited.

[0085] In a case where the cam 88 and the cam receptacle 90 return from a state in which the engagement section 88B is disengaged from the engagement section 90A to a state in which the engagement section 88B is engaged with the engagement section 90A, the force required for the return is reduced because the part of the second area 88Y that is near the engagement section 88B is separated from the axis of rotation of the output shaft 74A at a shorter distance than the part of the first area 88X that is near the engagement section 88B.

[0086] The torque limiting mechanism 86 can, for example, include a guide preload section. The guide preload section is, for example, arranged on the first connecting pin 54. The guide preload section exerts, for example, a force on the cam receptacle 90 in a direction from the second region 88Y to the first region 88X. In an example where the cam 88 and the cam receptacle 90 are in a state in which the engagement section 88B is disengaged from the engagement section 90A, the guide preload section exerts a force on the cam receptacle 90 to return it to a state in which the engagement section 88B is engaged with the engagement section 90A.In one example, the guide biasing portion is configured to automatically return the cam 88 and the cam receiver 90 from a state in which the engaging portion 88B is disengaged from the engaging portion 90A to a state in which the engaging portion 88B is engaged with the engaging portion 90A.

[0087] The description of the above embodiment illustrates, without intending to limit the scope of the invention, applicable embodiments of a switching mechanism and a component for a human-powered vehicle according to the present invention. The switching mechanism and component according to the invention can be applied, for example, to the modified embodiments described below and to combinations of at least two of the modified embodiments that do not contradict each other. In the modified embodiments described below, those components are designated with the same reference numerals that are identical to the corresponding components of the above embodiment. Such components are not described in detail.

[0088] The arrangement of power supply 76 can be changed. As shown in Fig. As shown in Figure 11, the power supply 76 can be arranged at the second connecting element 52. As in Fig. As shown in Figure 12, the power supply 76 can be arranged at the first connecting element 50.

[0089] The arrangement of motor unit 74 can be changed. As in Fig. As shown in Figure 13, the motor unit 74 can be arranged on the second connecting element 52.

[0090] The arrangement of the motor unit 74 and the power supply 76 can be changed. In one example, the human-powered vehicle component 30 includes the rear derailleur 40 and the rear sprocket assembly 32, which can be rotatably mounted on the human-powered vehicle 10 about the rear wheel axle 12C of the rear wheel 12 of the human-powered vehicle 10. The rear derailleur 40 further includes the power supply 76, which supplies electrical power to the motor unit 74. The motor unit 74 and the power supply 76 are arranged on at least one of the base member 42, the movable member 44, and the second link member 52. For example, in this modified example, the motor unit 74 is arranged on one of the base member 42 and the second link member 52, and the power supply 76 is arranged on the other of the base member 42 and the second link member 52.In this modified example, for instance, in a case where the motor unit 74 is arranged on the base element 42, the power supply 76 can be arranged on the second connecting element 52, as in . Fig. 11 shown.

[0091] As in Fig. As shown in Figure 14, the switching mechanism 40 can further include a communication line connection 94, which is connected to a communication line for communication with a component for a human-powered vehicle 20. The component for a human-powered vehicle 20 is, for example, the same as the first component 20X or the second component 20Y.

[0092] As in Fig. 15, the power supply 76 may be configured to be connectable to an electrical power line connected to an external power source 22. The battery 78 may be omitted in the present modified example. In one example, the external power source 22 may be located on the human-powered vehicle 10 and may be a battery pack separate from the transmission 40 or an AC power source.

[0093] As in the Fig. 16 and Fig. As shown in Figure 17, the first guide plate 66 can include a projection 66A that extends towards the second guide plate 68. The projection 66A is, for example, located between the axis of rotation of the first roller 56C and the axis of rotation of the second roller 58C. In one example, the projection 66A is located at a position that is more likely to contact the spokes of the rear wheel 12 than the second guide plate 68, the first roller 56, and the second roller 58 in a case where the derailleur 40 experiences an impact. In another example, the projection 66A is located at a position that is more likely to contact the spokes of the rear wheel 12 than the second guide plate 68, the first roller 56, and the second roller 58 in a case where the chain 18 is engaged with a rear sprocket 34 having a predetermined number of teeth or more, and the derailleur 40 experiences an impact.The rear sprocket 34 with a predetermined number of teeth or more is, for example, the rear sprocket 34 with the largest number of teeth. The projection 66A is, for example, located on a section of the first guide plate 66 that is closer to the axis of rotation of the first pulley 56C than to the axis of rotation of the second pulley 58C. A distance LA from the axis of rotation of the first pulley 56C to the projection 66A is, for example, greater than a radius LB of the first pulley 56. As described above, the projection 66A is located at a position that is more likely to contact the spokes of the rear wheel 12 than the second guide plate 68, the first pulley 56, and the second pulley 58. Thus, in a case where the derailleur 40 experiences an impact, it is less likely that the spokes of the rear wheel 12 will contact the second guide plate 68, the first pulley 56, and the second pulley 58.Thus, the movement of the second guide plate 68, the first roller 56 and the second roller 58 is limited even in a case where the derailleur 40 experiences an impact.

[0094] The coupling structure between the base element 42 and the frame 14 can be changed. In an example, as in Fig. As shown in Figure 18, the base element 42 includes a first mounting end 42A, which is attached coaxially with the rear wheel, and a second mounting end 42B, which is attached to the connecting mechanism 46. The first mounting end 42A includes a first arm 42X and a second arm 42Y. The first arm 42X is separated from the second arm 42Y in an axial direction along the axis of the rear wheel 12.

[0095] As in Fig. As shown in Figure 19, the switching mechanism 40 can be of a manual type. In this modified example, the motor unit 74 is omitted. In this modified example, the switching mechanism 40 includes a mounting section 96 to which a cable for connection to the switching actuator is attached. An inner wire of the cable is attached to the mounting section 96. The mounting section 96 is, for example, arranged on the first connecting element 50.

[0096] As in the Fig. 20 and Fig. As shown in Figure 21, the manual-type rear derailleur 40 may include the second link member 52 with a stop 98. The stop 98 protrudes, for example, toward the first link member 50. The base member 42 includes an adjuster 98A. The adjuster 98A is, for example, a bolt. The adjuster 98A includes an end that contacts the stop 98. The distance from the axis of the fourth link pin 64 to the end of the stop 98 is, for example, greater than or equal to 15 mm and less than or equal to 20 mm. When an inner wire of a cable is pulled, the end of the adjuster 98A at the limiter 98 moves into contact with the limiter 98. Since the distance between the axis of the fourth connecting pin 64 and the end of the limiter 98 is greater than or equal to 15 mm, the tension exerted on the second connecting member 52 is reduced compared to a case where the distance is less than 15 mm.Therefore, the second connecting element 52 can also have a long service life if the second connecting element 52 is made of a plastic, for example.

[0097] As in Fig.As shown in Figure 22, the connecting pin reference plane 54P can be closer to the mid plane 14P than the reference plane of the movable element 44P in one direction of the roller assembly swivel axis 48C. In this modified example, the rear derailleur 40 includes, for example, the base member 42 configured to be attached to the frame 14 of the human-powered vehicle 10, the movable member 44 movable relative to the base member 42, the link mechanism 46 movably connecting the movable member 44 to the base member 42, the link mechanism 46 including the first link member 50 and the second link member 52, the second link member 52 at least partially superimposing the first link member 50 in a state in which the rear derailleur 40 is attached to the frame 14, viewed along a direction in which the base member 42 faces the center plane 14P of the frame 14.and wherein the connecting mechanism 46 pivotably couples the first connecting element 50 and the movable element 44 about the first connecting pin pivot axis 54C of the first connecting pin 54, and includes the roller assembly 48, which is rotatably mounted on the movable element 44 about the roller assembly pivot axis 48C and includes the first roller 56, which is rotatable about the pivot axis of the first roller 56C. The first roller 56 includes the median plane of the first roller 56P, which is perpendicular to the pivot axis of the first roller 56C. The first connecting pin 54 includes the first end face of the first connecting pin 54A and the second end face of the first connecting pin 54B.which is located axially from the first end face of the first connecting pin 54A with respect to the first connecting pin's axis of rotation 54C. The first end face of the first connecting pin 54A is located closer to the rear wheel axle 12C of the rear wheel 12 of the human-propelled vehicle 10 than the second end face of the first connecting pin 54B in an installed state.in which the derailleur 40 is mounted on the frame 14 of the human-powered vehicle 10. The connecting pin reference plane 54P is parallel to the center plane of the first roller 56P and passes through the first intersection point P1 of the first connecting pin rotation axis 54C and the first end surface of the first connecting pin 54A. The connecting pin reference plane 54P is parallel to the center plane of the first roller 56P. The reference plane of the movable member 44P passes through the second intersection point P2 of the roller assembly pivot axis 48C and the roller assembly-facing surface of the movable member 44, which faces the roller assembly 48 in a state,in which the roller assembly 48 is attached to the movable element 44. The reference plane of the movable element 44P is parallel to the center plane of the first roller 56P. As long as the connecting pin reference plane 54P is closer to the center plane 14P than the reference plane of the movable element 44P in the direction of the roller assembly pivot axis 48C, the other structures can be omitted. In this modified example, the first value can be greater than 0.4. The connecting pin reference plane 54P is at least 1 mm, preferably at least 2 mm, away from the reference plane of the movable element 44P. In one example, the connecting pin reference plane 54P is separated from the reference plane of the movable element 44P by a distance in a range of 1 mm to 5 mm.

[0098] In this description, the phrase “at least one of,” as used in this disclosure, means “one or more” of a desired choice. For example, the expression “at least one of,” as used in this disclosure, means “only one choice” or “both of two choices” in a case where the number of choices is two. In another example, the expression “at least one of,” as used in this disclosure, means “only a single choice” or “any combination of two or more choices” when the number of choices is three or more.

[0099] In this description, ordinal numbers such as "first", "second" and "third" are used only to distinguish between elements with the same name and have no special meaning. REFERENCE SYMBOL 10 human-powered vehicles 12 rear wheel 12C rear axle 12S rear axle vertical plane 14 frames 14A rear end 14P Middle Level 16 hub axle 18 chain 20 components for a human-powered vehicle 20X first component 20Y second component 22 external power source 30 components for a human-powered vehicle 32 rear sprocket assembly 34 rear sprocket 34A to 34C sprocket 40 Switchgear for a human-powered vehicle 42 Basic element 42A first end of installation 42B second attachment end 42X first arm 42Y second arm 44 movable element 44P Reference plane of the movable element 46 Connection mechanism 48 Roller assembly 48C Roller assembly swivel axis 50 first connecting element 50A first end 50B second end 50X first part 50Y second part 52 second connecting element 52A first end 52B second end 54 first connecting pin 54A first end face of the first connecting pin 54B second end face of the first connecting pin 54C first connecting pin pivot axis 54P Connecting pin reference plane 56 first role 56C axis of rotation of the first roller 56P Middle level of the first role 58 second role 58C Pivot axis of the second roller 60 second connecting pin 62 third connecting pin 64 fourth connecting pin 66 first guide plate 66A Projection 68 second guide plate 70 Rotary shaft 72 Damping structure 72A one-way coupling 72B resistive element 72C Actuating section 74 Motor unit 74A Output shaft 76 Power supply 78 Battery 80 Wireless communication unit 82 Wireless antenna 82A first wireless antenna 82B second wireless antenna 86 Torque limiting mechanism 88 Cam 88A Cam surface 88B Intervention section 88X first area 88Y second range 90 Cam Mount 90A Intervention section 92 Preload element 94 Communication line connection 96 Fastening section 98 Limit 98A adjuster D1 first angle L1 swivel distance L2 planar distance LA distance (from the axis of rotation of the first roller to the projection) LB Radius (of the first roll) LP spacing LX radial length P1 first intersection P2 second intersection R1 first direction of rotation R2 second direction of rotation R3, R4 side (of intervention section 88B) TA, TB Number of teeth QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] US 2018 / 0 194 433 A1

[0002]

Claims

[1] A switching mechanism (40) for a human-powered vehicle (10), the switching mechanism (40) comprising: a base member (42) configured to be attached to a frame (14) of the human-powered vehicle (10); a movable member (44) movable relative to the base member (42); a link mechanism (46) movably connecting the movable member (44) to the base member (42), wherein the link mechanism (46) includes a first link member (50) and a second link member (52), wherein the second link member (52) at least partially overlies the first link member (50) in an attached state in which the derailleur (40) is attached to the frame (14) along a direction in which the base member (42) points to a center plane (14P) of the frame (14), and wherein the link mechanism (46) pivotally couples the first link member (50) and the movable member (44) about a first link pin rotation axis (54C) of a first link pin (54); and a roller assembly (48) rotatably mounted on the movable member (44) about a roller assembly pivot axis (48C), the roller assembly (48) including a first roller (56) and a second roller (58), the first roller (56) being rotatable about a rotational axis of the first roller (56C), and the second roller (58) being rotatable about a rotational axis of the second roller (58C), the rotational axis of the second roller (58C) being farther from the roller assembly pivot axis (48C) than the rotational axis of the first roller (56C); wherein the first roller (56) includes a center plane of the first roller (56P) which is perpendicular to the axis of rotation of the first roller (56C); wherein the first connecting pin (54) includes a first connecting pin (54A) first end surface and a first connecting pin (54B) second end surface that is remote from the first connecting pin (54A) first end surface in an axial direction with respect to the first connecting pin rotation axis (54C); wherein the first end surface of the first connecting pin (54A) is arranged closer to a rear wheel axle (12C) of a rear wheel (12) of the human-powered vehicle (10) than the second end surface of the first connecting pin (54B) in the attached state; wherein the rotational axis of the first roller (56C) is arranged at a position which is away from the roller assembly pivot axis (48C) by a pivoting distance (L1) in a radial direction with respect to the rotational axis of the first roller (56C); wherein a connecting pin reference plane (54P) is parallel to the center plane of the first roller (56P) and passes through a first intersection point (P1) of the first connecting pin rotation axis (54C) and the first end surface of the first connecting pin (54A), the connecting pin reference plane (54P) being spaced from the center plane of the first roller (56P) by a planar distance (L2) in an axial direction with respect to the rotation axis of the first roller (56C); and wherein a first value resulting from dividing the planar distance (L2) by the pivot distance (L1) is 0.4 or less. [2] The rear derailleur (40) of claim 1, wherein the roller assembly pivot axis (48C) is offset from the rotational axis of the first roller (56C) and the rotational axis of the second roller (58C). [3] The switching mechanism (40) according to claim 1 or 2, wherein the first value is 0.35 or less. [4] The switching mechanism (40) according to any one of claims 1 to 3, wherein the first value is 0.14 or more. [5] The switching mechanism (40) according to claim 4, wherein the first value is 0.29 or more. [6] The rear derailleur (40) according to any one of claims 1 to 5, wherein a first angle (D1) at an intersection point between the first connecting pin rotation axis (54C) and a rear wheel axis perpendicular plane (12S) perpendicular to the rear wheel axis (12C) is 0 degrees or more and 45 degrees or less in a state where the rear derailleur (40) is mounted on the frame (14) of the human-powered vehicle (10). [7] The rear derailleur (40) according to any one of claims 1 to 6, wherein the rotational axis of the first pulley (56C) and the rotational axis of the second pulley (58C) are separated by a distance (LP) of 30 mm or more and 100 mm or less. [8] The rear derailleur (40) according to any one of claims 1 to 7, further comprising a motor unit (74) connected to the linkage mechanism (46) and configured to move the movable member (44) relative to the base member (42). [9] Switching mechanism (40) according to claim 8, further comprising: a power supply (76) that supplies electrical energy to the motor unit (74); wherein the motor unit (74) is arranged on one of the base member (42), the movable member (44) and the connecting mechanism (46); and wherein the power supply (76) is arranged on another of the base member (42), the movable member (44) and the connecting mechanism (46). [10] The switching mechanism (40) according to claim 9, wherein the power supply (76) is configured to receive a battery (78). [11] Switching mechanism (40) according to claim 9, wherein the power supply (76) is configured to be connectable to an electrical power line connected to an external power source (22). [12] Rear derailleur (40) according to one of claims 9 to 11, wherein the motor unit (74) is arranged on the base element (42). [13] Rear derailleur (40) according to claim 9 or 10, wherein the motor unit (74) is arranged on the second connecting element (52). [14] Switching mechanism (40) according to one of claims 9 to 13, wherein the power supply (76) is arranged on the base element (42). [15] Switching mechanism (40) according to one of claims 9 to 13, wherein the power supply (76) is arranged on the second connecting element (52). [16] Switching mechanism (40) according to one of claims 8 to 15, wherein: the motor unit (74) includes a wireless communication unit (80); and the wireless communication unit (80) includes at least one wireless antenna (82). [17] The switching mechanism (40) of claim 16, wherein the at least one wireless antenna (82) includes a first wireless antenna (82A) for communicating with a first component (20X) and a second wireless antenna (82B) for communicating with a second component (20Y). [18] The switching mechanism (40) of any one of claims 1 to 16, further comprising a communication line terminal (94) connected to a communication line for communication with a component (20) of the human-powered vehicle (10). [19] Switching mechanism (40) according to one of claims 1 to 18, wherein: the base member (42) includes a first attachment end (42A) mounted coaxially with the rear wheel (12) and a second attachment end (42B) mounted to the linkage mechanism (46); the first attachment end (42A) includes a first arm (42X) and a second arm (42Y); and the first arm (42X) is separated from the second arm (42Y) in an axial direction of an axis of the rear wheel (12). [20] Switching mechanism (40) according to one of claims 1 to 19, further comprising: a rotary shaft (70) mounted on the roller assembly (48) and rotatably coupled to the movable member (44) about the roller assembly pivot axis (48C); and a damping structure (72) arranged on the movable member (44) around the rotary shaft (70) and configured to generate rotational resistance to one side in a rotational direction of the roller assembly (48). [21] A component (30) for a human-powered vehicle (10), the component (30) comprising: the switching mechanism (40) of the human-powered vehicle (10) according to one of claims 1 to 20; and a rear sprocket assembly (32) attachable to the human-powered vehicle (10) for rotation about a rear wheel axle (12C) of a rear wheel (12) of the human-powered vehicle (10), wherein the rear sprocket assembly (32) includes rear sprockets (34) differing from one another in the number of teeth, the one of the rear sprockets (34) having the largest number of teeth having 45 or more teeth. [22] A component (30) for a human-powered vehicle (10), the component (30) comprising: the switching mechanism (40) of the human-powered vehicle (10) according to one of claims 1 to 20; and a rear sprocket assembly (32) attachable to the human-powered vehicle (10) for rotation about a rear wheel axle (12C) of a rear wheel (12) of the human-powered vehicle (10), wherein the rear sprocket assembly (32) includes rear sprockets (34) differing from one another in outer diameter, and wherein the one of the rear sprockets (34) with the largest outer diameter has a radial length of 90 mm or more in a radial direction. [23] A component (30) for a human-powered vehicle (10), the component (30) comprising: the switching mechanism (40) of the human-powered vehicle (10) according to one of claims 1 to 20; and a rear sprocket assembly (32) attachable to the human-powered vehicle (10) for rotation about a rear wheel axle (12C) of a rear wheel (12) of the human-powered vehicle (10), wherein the rear sprocket assembly (32) includes rear sprockets (34) differing from one another in the number of teeth, and wherein a value resulting from dividing the number of teeth of the one of the rear sprockets (34) having the largest number of teeth by the number of teeth of the one of the rear sprockets (34) having the smallest number of teeth is 4.5 or more. [24] A component (30) for a human-powered vehicle (10), the component (30) comprising: the switching mechanism (40) of the human-powered vehicle (10) according to claim 8; and a rear sprocket assembly (32) attachable to the human-powered vehicle (10) for rotation about a rear wheel axle (12C) of a rear wheel (12) of the human-powered vehicle (10), wherein the switching mechanism (40) further includes a power supply (76) which supplies the motor unit (74) with electrical energy, and wherein the motor unit (74) and the power supply (76) are arranged on one of the base member (42), the movable member (44) and the second connecting member (52). [25] Component (30) according to claim 24, wherein: the motor unit (74) is arranged on one of the base element (42) and the second connecting element (52); and the power supply (76) is arranged on the other of the base element (42) and the second connecting element (52). [26] A switching mechanism (40) for a human-powered vehicle (10), the switching mechanism (40) comprising: a base member (42) configured to be attached to a frame (14) of the human-powered vehicle (10); a movable member (44) movable relative to the base member (42); a link mechanism (46) movably connecting the movable member (44) to the base member (42), the link mechanism (46) including a first link member (50) and a second link member (52), the second link member (52) overlooking the first link member (50) in a state in which the derailleur (40) is attached to the frame (14) along a direction in which the base member (42) points to a center plane (14P) of the frame (14), at least partially superimposed, and wherein the connecting mechanism (46) pivotally couples the first connecting element (50) and the movable element (44) about a first connecting pin rotation axis (54C) of a first connecting pin (54); and a roller assembly (48) rotatably mounted on the movable member (44) about a roller assembly pivot axis (48C), the roller assembly (48) including a first roller (56) rotatable about a rotation axis of the first roller (56C); wherein the first roller (56) includes a center plane of the first roller (56P) which is perpendicular to the axis of rotation of the first roller (56C); wherein the first connecting pin (54) includes a first connecting pin (54A) first end surface and a first connecting pin (54B) second end surface that is remote from the first connecting pin (54A) first end surface in an axial direction with respect to the first connecting pin rotation axis (54C); wherein the first end face of the first connecting pin (54A) is arranged closer to a rear wheel axle (12C) of a rear wheel (12) of the human-powered vehicle (10) than the second end face of the first connecting pin (54B) in the state in which the transmission (40) is attached to the frame (14) of the human-powered vehicle (10); and wherein a connecting pin reference plane (54P) is parallel to the center plane of the first roller (56P) and passes through a first intersection point (P1) of the first connecting pin rotation axis (54C) and the first end surface of the first connecting pin (54A), wherein the connecting pin reference plane (54P) is arranged closer to the center plane (14P) in a direction of the roller assembly pivot axis (48C) than a reference plane of the movable member (44P), and wherein the connecting pin reference plane (54P) is parallel to the center plane of the first roller (56P) and passes through a second intersection point (P2) of the roller assembly pivot axis (48C) and a roller assembly-facing surface of the movable member (44) facing the roller assembly (48) in a state in which the roller assembly (48) is attached to the movable member (44).

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