Bicycle derailleur

Abstract

The present invention provides a bicycle derailleur, comprising a circuit board, an electrical user interface, a motor housing, and a motor unit. The electrical user interface includes a user access portion configured to receive user input. The motor housing includes a motor receiving space. The motor unit is disposed in the motor receiving space, configured to generate rotational force, and configured to be electrically connected to the circuit board. A first direction is defined as either from the circuit board toward the electrical user interface or from the electrical user interface toward the circuit board. A plurality of second directions are defined as perpendicular to the first direction. When viewed along at least one of the plurality of second directions, the motor unit is at least partially disposed between the user access portion of the electrical user interface and the circuit board.

Description

[Technical Field]

[0001] This invention relates to a bicycle gearbox. [Previous Technology]

[0002] A bicycle includes a derailleur configured to move a chain relative to a plurality of sprockets. [Summary of the Invention]

[0003] According to a first aspect of the present invention, a bicycle derailleur includes a circuit board, an electrical user interface, a motor housing, and a motor unit. The electrical user interface includes a user access portion configured to receive user input. The motor housing includes a motor receiving space. The motor unit is disposed in the motor receiving space and configured to generate rotational force and is configured to be electrically connected to the circuit board. A first direction is defined as from the circuit board toward the electrical user interface or from the electrical user interface toward the circuit board. A plurality of second directions are defined as perpendicular to the first direction. When viewed along at least one of the plurality of second directions, the motor unit is at least partially disposed between the user access portion of the electrical user interface and the circuit board.

[0004] The motor unit, the user interface and the circuit board can be effectively configured using the bicycle gearbox according to the first state.

[0005] According to a second embodiment of the present invention, the bicycle derailleur of the first embodiment further includes a notification unit configured to notify a user of information and configured to be electrically connected to the circuit board. When viewed along at least one of the plurality of second directions, the circuit board is at least partially disposed between the user access portion of the electrical user interface and the notification unit.

[0006] The circuit board, the user interface and the notification unit can be effectively configured using the bicycle gearbox according to the second state.

[0007] According to a third embodiment of the present invention, the bicycle derailleur of the first embodiment further includes a notification unit configured to notify a user of information and configured to be electrically connected to the circuit board. When viewed along at least one of the plurality of second directions, the circuit board is at least partially disposed between the motor unit and the notification unit.

[0008] The circuit board, the motor unit and the notification unit can be effectively configured using the bicycle gearbox according to the third state.

[0009] According to a fourth embodiment of the present invention, a bicycle derailleur includes a circuit board, an electrical user interface, and a notification unit. The electrical user interface includes a user access portion configured to receive user input. The notification unit is configured to notify a user of information and is configured to be electrically connected to the circuit board. A first direction is defined as either from the notification unit toward the user access portion of the electrical user interface or from the user access portion of the electrical user interface toward the notification unit. A plurality of second directions are defined as perpendicular to the first direction. When viewed along at least one of the plurality of second directions, the circuit board is at least partially disposed between the user access portion of the electrical user interface and the notification unit.

[0010] The circuit board, the user interface and the notification unit can be effectively configured using the bicycle gearbox according to the fourth state.

[0011] According to a fifth aspect of the present invention, a bicycle derailleur includes a circuit board, an electrical user interface, and a notification unit. The circuit board has a central plane that bisects a portion of the circuit board's thickness. The electrical user interface includes a user access portion configured to receive user input. The electrical user interface is disposed in a first spatial region relative to the central plane of the circuit board. The notification unit is configured to notify a user of information and is configured to be electrically connected to the circuit board. The notification unit is disposed in a second spatial region opposite to the first spatial region relative to the central plane of the circuit board.

[0012] The circuit board, the user interface and the notification unit can be effectively configured using the bicycle gearbox according to the fifth state.

[0013] According to a sixth embodiment of the present invention, the bicycle derailleur according to the fourth embodiment further includes a motor unit configured to generate rotational force and configured to be electrically connected to the circuit board. When viewed along at least one of the plurality of second directions, the circuit board is at least partially disposed between the motor unit and the notification unit.

[0014] The circuit board, the motor unit and the notification unit can be effectively configured using the bicycle gearbox according to the sixth state.

[0015] According to a seventh embodiment of the present invention, a bicycle gearbox includes a circuit board, a motor unit, and a notification unit. The motor unit is configured to generate rotational force and is configured to be electrically connected to the circuit board. The notification unit is configured to notify a user of information and is configured to be electrically connected to the circuit board. A first direction is defined as from the circuit board toward the user interface or from the user interface toward the circuit board. A plurality of second directions are defined as perpendicular to the first direction. When viewed along at least one of the plurality of second directions, the circuit board is at least partially disposed between the motor unit and the notification unit.

[0016] The circuit board, the motor unit and the notification unit can be effectively configured using the bicycle gearbox according to the seventh state.

[0017] According to an eighth embodiment of the present invention, a bicycle derailleur includes a circuit board, a motor unit, and a notification unit. The circuit board has a central plane that bisects a portion of the circuit board's thickness. The motor unit is configured to generate rotational force and is electrically connected to the circuit board. The motor unit is disposed in a first spatial region relative to the central plane of the circuit board. The notification unit is configured to notify a user of information and is electrically connected to the circuit board. The notification unit is disposed in a second spatial region opposite to the first spatial region relative to the central plane of the circuit board.

[0018] The circuit board, the motor unit and the notification unit can be effectively configured using the bicycle gearbox according to the eighth state.

[0019] According to a ninth embodiment of the present invention, the bicycle derailleur according to the second, third, or seventh embodiment further includes a notification unit configured to notify a user of information and configured to be electrically connected to the circuit board. When viewed along at least one of the plurality of second directions, the motor unit is at least partially disposed between the user access portion of the electrical user interface and the notification unit.

[0020] The motor unit, the user interface and the notification unit can be effectively configured using the bicycle gearbox according to the ninth state.

[0021] According to a tenth embodiment of the present invention, a bicycle derailleur according to any one of the second to ninth embodiments is configured such that the notification unit includes a light emitter and a light transmission member. The light emitter is configured to emit light and is configured to be electrically connected to the circuit board. The light transmission member is configured to transmit light emitted from the light emitter.

[0022] By using the bicycle gearbox according to the tenth state, light emitted from the light emitter can be reliably transmitted to a position where the user can see the transmitted light.

[0023] According to an eleventh embodiment of the present invention, a bicycle gearbox according to any one of the first to third embodiments and the sixth to tenth embodiments is configured such that the motor unit includes a motor and a gear structure. The motor is configured to generate rotational force. The gear structure is configured to change the rotational force based on a reduction ratio. When viewed along at least one of the plurality of second directions, the gear structure is at least partially disposed between the user access portion of the electronic user interface and the circuit board.

[0024] The gear structure, the user interface and the circuit board can be effectively configured using the bicycle gearbox according to the eleventh state.

[0025] According to a twelfth embodiment of the present invention, the bicycle derailleur of the eleventh embodiment is configured such that the gear structure includes a gear support and a plurality of gears configured to be rotatably attached to the gear support. When viewed along at least one of the plurality of second directions, the gear support is at least partially disposed between the user access portion of the electronic user interface and the circuit board.

[0026] The gear support, the user interface and the circuit board can be effectively configured using the bicycle gearbox according to the twelfth state.

[0027] According to a thirteenth embodiment of the present invention, the bicycle derailleur of the twelfth embodiment is configured such that, when viewed along at least one of the plurality of second directions, the gear support is at least partially disposed between the motor and the circuit board.

[0028] The gear support, the motor and the circuit board can be effectively configured using the bicycle gearbox according to the thirteenth state.

[0029] According to a fourteenth embodiment of the present invention, the bicycle derailleur according to any one of the first to thirteenth embodiments further includes a base member configured to be mounted to a bicycle frame. The electrical user interface is configured to be movably mounted to at least one of the motor unit and the base member.

[0030] The user input can be received using the bicycle gearbox according to the fourteenth state.

[0031] According to a fifteenth embodiment of the present invention, the bicycle derailleur of the fourteenth embodiment is configured such that the motor unit includes a motor and a gear structure. The motor is configured to generate rotational force. The gear structure is configured to change the rotational force based on a reduction ratio. At least one of the motor and the gear structure is at least partially disposed in the motor housing. The electrical user interface is configured to be movably mounted to at least one of the motor housing, the gear structure, and the base member.

[0032] Using the bicycle gearbox according to the fifteenth state, the user input can be reliably received using the electronic user interface.

[0033] According to a sixteenth embodiment of the present invention, the bicycle derailleur of the fifteenth embodiment is configured such that the gear structure includes a gear support and a plurality of gears configured to be rotatably attached to the gear support. The electrical user interface is configured to be movably mounted to at least one of the motor housing, the gear support, and the base member.

[0034] The user input can be reliably received using the bicycle gearbox according to the sixteenth state.

[0035] According to one seventeenth embodiment of the present invention, the bicycle derailleur according to the fifteenth or sixteenth embodiment is configured such that the circuit board is at least partially disposed in the motor housing space.

[0036] The circuit board can be protected by the motor housing using the bicycle gearbox according to the seventeenth state.

[0037] According to one eighteenth embodiment of the present invention, the bicycle derailleur of any one of the fifteenth to seventeenth embodiments is configured such that the motor housing is configured to be attached to the base member.

[0038] The posture of the motor housing relative to the base member can be stabilized by using the bicycle gearbox according to the eighteenth state.

[0039] According to one nineteenth embodiment of the present invention, the bicycle transmission according to any one of the fourteenth to eighteenth embodiments further includes a port configured to be electrically connected to a cable and disposed to at least one of the base member and the motor housing.

[0040] The cable can be connected to at least one of the base member and the motor unit using the bicycle derailleur according to the nineteenth state.

[0041] According to one of the twentieth aspects of the present invention, the bicycle derailleur of the nineteenth aspect is configured such that the port is configured to receive power through the cable.

[0042] Using the bicycle gearbox according to the twentieth state, power can be supplied to the bicycle gearbox through the cable.

[0043] According to one of the twenty-first embodiments of the present invention, the bicycle derailleur according to the nineteenth or twentieth embodiment is configured such that the port is configured to receive charging power through the cable.

[0044] Using the bicycle derailleur according to the twenty-first state, charging power can be supplied to the bicycle derailleur through the cable.

[0045] According to a twenty-second embodiment of the present invention, the bicycle derailleur according to any one of the fourteenth to twenty-first embodiments further includes a movable member movably coupled to the base member. The electrical user interface is configured to be disposed to at least one of the base member and the movable member.

[0046] The user interface can be effectively configured depending on the base member and the movable member by using the bicycle gearbox according to the twenty-second state.

[0047] According to a twenty-third aspect of the present invention, a bicycle derailleur includes a circuit board and an electrical user interface. The electrical user interface is configured to receive a user input. The electrical user interface includes a switch circuit, a button, and a resilient member. The switch circuit is configured to be electrically connected to the circuit board. The button is configured to be movable relative to the switch circuit. The resilient member is at least partially disposed between the switch circuit and the button.

[0048] The elastic member can be used to reduce the impact applied from the button to the switching circuit by using the bicycle derailleur according to the twenty-third state.

[0049] According to one twenty-fourth embodiment of the present invention, the bicycle derailleur of the twenty-third embodiment is configured such that the elastic member is configured to contact the switching circuit.

[0050] Using the bicycle derailleur according to the twenty-fourth state, the elastic member can reliably reduce the impact applied from the button to the switching circuit.

[0051] According to a twenty-fifth embodiment of the present invention, the bicycle derailleur of a twenty-third or twenty-fourth embodiment is configured such that the switching circuit includes a first contact and a second contact, the second contact being configured to contact the first contact in response to a force applied from the button to the second contact. The elastic member is at least partially disposed between the second contact and the button.

[0052] Using the bicycle derailleur according to the twenty-fifth state, the elastic member can reliably reduce the impact applied from the button to the second contact.

[0053] According to one twenty-sixth embodiment of the present invention, the bicycle derailleur according to any one of the twenty-third to twenty-fifth embodiments is configured such that the switching circuit is made of a first material. The button is made of a second material. The elastic member is made of a third material. The third material is softer than at least one of the first material and the second material.

[0054] Using the bicycle derailleur according to the twenty-sixth state, the elastic member can reliably reduce the impact applied from the button to the switching circuit.

[0055] According to a twenty-seventh embodiment of the present invention, the bicycle derailleur of the twenty-sixth embodiment is configured such that the first material comprises a metallic material. The second material comprises a metallic material. The third material comprises a non-metallic material.

[0056] Using the bicycle derailleur according to the twenty-seventh state, the elastic member made of the non-metallic material can reliably reduce the impact applied from the button to the switching circuit.

[0057] According to one twenty-eighth embodiment of the present invention, the bicycle derailleur of the twenty-sixth or twenty-seventh embodiment is configured such that the third material comprises an elastomer.

[0058] Using the bicycle derailleur according to the twenty-eighth state, the elastic member containing the elastic body can reliably reduce the impact applied from the button to the switching circuit.

[0059] According to a twenty-ninth embodiment of the present invention, the bicycle derailleur according to any one of the twenty-third to twenty-eighth embodiments further includes a base member and a movable member. The base member is configured to be mounted to a bicycle frame. The movable member is movably coupled to the base member. The circuit board and the user interface are disposed to at least one of the base member and the movable member.

[0060] The circuit board and the user interface can be effectively configured by means of the base member and the movable member using the bicycle gearbox according to the twenty-ninth state.

[0061] According to a thirtieth embodiment of the present invention, the bicycle derailleur according to the twenty-ninth embodiment further includes a motor unit configured to be electrically connected to the circuit board. The motor unit is disposed to at least one of the base member and the movable member.

[0062] The motor unit can be effectively configured by means of the base member and the movable member using the bicycle gearbox according to the thirtieth state.

[0063] According to a thirty-first embodiment of the present invention, the bicycle derailleur according to the thirty-first embodiment further includes a motor housing containing a motor receiving space. The motor unit is disposed in the motor receiving space and includes a motor and a gear structure. The motor is configured to generate rotational force. The gear structure is configured to change the rotational force based on a reduction ratio. At least one of the motor and the gear structure is at least partially disposed in the motor receiving space. The elastic member is movably mounted to at least one of the motor housing and the gear structure.

[0064] The elastic member can be supported by at least one of the motor housing and the gear structure using the bicycle gearbox according to the thirty-first state.

[0065] According to a thirty-second embodiment of the present invention, the bicycle derailleur of the thirty-first embodiment is configured such that the gear structure includes a gear support and a plurality of gears configured to be rotatably attached to the gear support. The elastic member is movably mounted to at least one of the motor housing and the gear support.

[0066] By using a bicycle derailleur according to the thirty-second state, the elastic member can be used to effectively reduce the impact applied from the button to the user interface.

[0067] According to one of the thirty-third embodiments of the present invention, the bicycle derailleur of the thirty-second embodiment is configured such that at least one of the motor housing and the gear support includes a support hole. The elastic member is movably disposed in the support hole.

[0068] The elastic member can be reliably supported by the support hole using the bicycle derailleur according to the thirty-third state.

[0069] According to one of the thirty-fourth embodiments of the present invention, the bicycle derailleur of any one of the thirty-second to thirty-third embodiments is configured such that the user interface includes a biasing member configured to bias the button to move away from the switching circuit.

[0070] The button can be kept in a stationary position by using the bicycle gearbox according to the thirty-fourth state.

[0071] According to a thirty-fifth aspect of the present invention, a bicycle gearbox includes a circuit board, an electrical user interface, and a motor unit. The electrical user interface includes a user access portion configured to receive user input. The motor unit is configured to generate rotational force and is configured to be electrically connected to the circuit board. A minimum spacing distance defined between the circuit board and a distal portion of the electrical user interface is equal to or greater than 5 mm.

[0072] The circuit board and the user interface can be effectively configured using the bicycle gearbox according to the thirty-fifth state.

[0073] According to one of the thirty-sixth embodiments of the present invention, the bicycle derailleur of the thirty-fifth embodiment is configured such that the minimum interval distance is equal to or less than 18.5 mm.

[0074] The circuit board and the user interface can be configured more effectively by using the bicycle gearbox according to the thirty-sixth state.

[0075] According to a thirty-seventh aspect of the present invention, a bicycle derailleur includes a circuit board, a notification unit, a motor housing, and a motor unit. The circuit board has a central plane that bisects a portion of the thickness of the circuit board. The notification unit is configured to notify a user of information and is configured to be electrically connected to the circuit board. The motor housing includes a motor receiving space. The motor unit is disposed in the motor receiving space. The motor unit is configured to generate rotational force and is configured to be electrically connected to the circuit board. The motor unit is at least partially disposed between the notification unit and the circuit board along a reference direction perpendicular to the central plane of the circuit board.

[0076] The motor unit, the circuit board and the notification unit can be effectively configured using the bicycle gearbox according to the thirty-seventh state.

Implementation Method

[0077] Several embodiments will now be described with reference to the accompanying drawings, wherein similar element symbols throughout the various drawings designate corresponding or identical elements.

[0078] Referring first to Figure 1, a bicycle derailleur 10 is configured to be mounted to a bicycle frame 2A of a bicycle 2. The bicycle 2 includes a mountain bike, a road bike, a city bike, a tricycle, a freight bike, a recumbent bike, or any type of bicycle. In this embodiment, the bicycle derailleur 10 is a rear derailleur. However, the structure of the bicycle derailleur 10 can be adapted to other derailleurs, such as a front derailleur.

[0079] In this application, the following directional terms "forward," "backward," "forward," "rearward," "left," "right," "lateral," "upward," and "downward," as well as any other similar directional terms, refer to the direction determined based on a user (e.g., a rider) in a standard user position (e.g., on a saddle or seat) facing a handlebar. Accordingly, such terms used to describe the bicycle derailleur 10 or other components should be interpreted relative to a bicycle 2 equipped with the bicycle derailleur 10 for use in an upright riding position on a horizontal surface.

[0080] The bicycle derailleur 10 includes a base member 12. The base member 12 is configured to be mounted to a bicycle frame 2A. The bicycle derailleur 10 further includes a movable member 14. The movable member 14 is movably coupled to the base member 12.

[0081] The bicycle derailleur 10 includes a linkage structure 16. The linkage structure 16 is configured to movably couple the movable member 14 to the base member 12. The linkage structure 16 includes at least one linkage axis.

[0082] In this embodiment, the linkage structure 16 includes a first link 18, a first link pin 20, a first additional link pin 22, a second link 24, a second link pin 26, and a second additional link pin 28. The first link 18 is pivotally coupled to the base member 12 via the first link pin 20 about a first link axis A11. The second link 24 is pivotally coupled to the base member 12 via the second link pin 26 about a second link axis A21. The first link 18 is pivotally coupled to the movable member 14 via the first additional link pin 22 about a first additional link axis A12. The second link 24 is pivotally coupled to the movable member 14 via the second additional link pin 28 about a second additional link axis A22.

[0083] As shown in Figure 2, the bicycle derailleur 10 includes a chain guide 30. The chain guide 30 is pivotally mounted on a movable member 14. The chain guide 30 is pivotable relative to the movable member 14 about a chain guide axis A3. The chain guide 30 includes a guide pulley 32, a tension pulley 34, and a guide member 36. The guide member 36 is pivotally coupled to the movable member 14 about the chain guide axis A3. The guide pulley 32 is rotatably coupled to the guide member 36 about a guide pulley axis A4. The tension pulley 34 is rotatably coupled to the guide member 36 about a tension pulley axis A5. The guide pulley 32 and the tension pulley 34 are configured to engage a chain C.

[0084] The bicycle derailleur 10 further includes an actuator 38. The actuator 38 is configured to couple to at least one of the movable member 14 and the linkage structure 16 to move the movable member 14 relative to the base member 12. In this embodiment, the actuator 38 is configured to couple to a second link 24 of the linkage structure 16 to move the movable member 14 relative to the base member 12. However, the actuator 38 may be configured to couple to either the movable member 14 or both the movable member 14 and the linkage structure 16 to move the movable member 14 relative to the base member 12.

[0085] The bicycle derailleur 10 includes an aid structure 40 configured to protect the actuator 38 from overload. The actuator 38 is configured to couple to a second link 24 of the linkage mechanism 16 via the aid structure 40. The aid structure 40 has a transmission state and a non-transmission state. In the transmission state, the aid structure 40 is configured to transmit a driving force from the actuator 38 to the linkage structure 16 to move the movable member 14 relative to the base member 12. In the non-transmission state, the aid structure 40 is configured to cut off the transmission of driving force from the actuator 38 to the linkage structure 16. Since the aid structure 40 includes a structure known in the bicycle industry, it will not be described in detail here for the sake of brevity.

[0086] As seen in Figures 3 and 4, the actuator 38 includes a motor housing 42. That is, the bicycle derailleur 10 includes a motor housing 42. The motor housing 42 is configured to be attached to the base member 12. The base member 12 includes a first base member 44 and a second base member 46. The second base member 46 is a separate member from the first base member 44. The second base member 46 is configured to be detachably attached to the first base member 44. As seen in Figure 3, the second base member 46 is secured to the first base member 44 using a plurality of fasteners such as screws 48. The motor housing 42 is held between the first base member 44 and the second base member 46.

[0087] As shown in Figure 5, the actuator 38 includes a motor unit 50. That is, the bicycle derailleur 10 includes the motor unit 50. The motor unit 50 is configured to generate rotational force. The motor unit 50 includes a motor 52 and a gear structure 54. The motor 52 is configured to generate rotational force. The gear structure 54 is configured to change the rotational force based on a reduction ratio.

[0088] Gear structure 54 includes a gear support 56 and a plurality of gears G1 to G7 configured to be rotatably attached to the gear support 56. Motor 52 includes an output shaft 52A having a gear-like component. For example, the gear-like component of output shaft 52A includes a worm gear. Gear G1 meshes with the gear-like component of output shaft 52A of motor 52. Gear G1, together with gear G2, is rotatable relative to motor housing 42. Gear G2 meshes with gear G3. Gear G3, together with gear G4, is rotatable relative to motor housing 42. Gear G4 meshes with gear G5. Gear G5, together with gear G6, is rotatable relative to motor housing 42. Gear G6 meshes with gear G7. Gear G7 is fixed to a second link pin 26 of link structure 16. The second link pin 26 is coupled to assist structure 40 to transmit rotational force transmitted from motor unit 50 to assist structure 40. The reduction ratio is defined by the gear-type component of the output shaft 52A and a plurality of gears G1 to G7.

[0089] As shown in FIG. 6, the motor housing 42 includes a motor receiving space 58. The motor unit 50 is disposed in the motor receiving space 58. At least one of the motor 52 and the gear structure 54 is at least partially disposed in the motor receiving space 58. In this embodiment, the motor 52 is completely disposed in the motor receiving space 58. The gear structure 54 is completely disposed in the motor receiving space 58. However, at least one of the motor 52 and the gear structure 54 may be at least partially disposed outside the motor receiving space 58.

[0090] The motor housing 42 includes a first motor housing 42A and a second motor housing 42B. The second motor housing 42B is a separate component from the first motor housing 42A. The second motor housing 42B is fixed to the first motor housing 42A using fasteners such as screws. The first motor housing 42A and the second motor housing 42B define a motor receiving space 58.

[0091] As shown in Figure 7, the bicycle derailleur 10 includes a circuit board 62. The bicycle derailleur 10 includes an electrical user interface 64. The electrical user interface 64 is configured to receive a user input U. The electrical user interface 64 includes a user access section 66 configured to receive the user input U. The motor unit 50 is configured to be electrically connected to the circuit board 62. The electrical user interface 64 is configured to be electrically connected to the circuit board 62. The electrical user interface 64 is configured to mechanically contact the circuit board 62.

[0092] The bicycle derailleur 10 includes a notification unit 68. The notification unit 68 is configured to notify a user of information. The notification unit 68 is configured to be electrically connected to a circuit board 62.

[0093] Circuit board 62 is at least partially disposed in motor housing space 58. Motor unit 50 is at least partially disposed in motor housing space 58. At least one of motor 52 and gear structure 54 is at least partially disposed in motor housing space 58. Electrical user interface 64 is at least partially disposed in motor housing space 58. Notification unit 68 is at least partially disposed in motor housing space 58.

[0094] In this embodiment, the circuit board 62 is completely disposed within the motor housing space 58. The motor unit 50 is completely disposed within the motor housing space 58. The motor 52 and the gear structure 54 are completely disposed within the motor housing space 58. The electrical user interface 64 is partially disposed within the motor housing space 58. The notification unit 68 is partially disposed within the motor housing space 58. However, as needed and / or desired, the circuit board 62 may be partially disposed within the motor housing space 58. The motor unit 50 may be partially disposed within the motor housing space 58. As needed and / or desired, at least one of the motor 52 and the gear structure 54 may be partially disposed within the motor housing space 58. As needed and / or desired, the electrical user interface 64 may be completely disposed within the motor housing space 58. As needed and / or desired, the notification unit 68 may be completely disposed within the motor housing space 58.

[0095] As shown in FIG. 7, the electrical user interface 64 is configured to be movably mounted to at least one of the motor unit 50 and the base member 12. The electrical user interface 64 is configured to be movably mounted to at least one of the motor housing 42, the gear structure 54, and the base member 12. The electrical user interface 64 is configured to be movably mounted to at least one of the motor housing 42, the gear support 56, and the base member 12.

[0096] In this embodiment, the electrical user interface 64 is configured to be movably mounted to the motor unit 50 and the base member 12. The electrical user interface 64 is configured to be movably mounted to the motor housing 42, the gear structure 54, and the base member 12. The electrical user interface 64 is configured to be movably mounted to the motor housing 42, the gear support 56, and the base member 12. However, the configuration of the electrical user interface 64 is not limited to the above configuration.

[0097] The electrical user interface 64 includes a switch circuit 70, a button 72, and a resilient member 74. The switch circuit 70 is configured to be electrically connected to the circuit board 62. The button 72 is configured to be movable relative to the switch circuit 70. The resilient member 74 is at least partially disposed between the switch circuit 70 and the button 72. The resilient member 74 is configured to contact the switch circuit 70. The electrical user interface 64 includes a biasing member 76 configured to bias the button 72 to move away from the switch circuit 70. The biasing member 76 is disposed between the motor housing 42 and the gear support 56 of the gear structure 54.

[0098] Button 72 is movably mounted to motor unit 50 and base member 12. Button 72 is movably mounted to motor housing 42, gear structure 54 and base member 12. Button 72 is movably mounted to motor housing 42, gear support 56 and base member 12. However, the configuration of button 72 is not limited to the above configuration.

[0099] The elastic member 74 is movably mounted to the motor unit 50. The elastic member 74 is movably mounted to the gear structure 54. The elastic member 74 is movably mounted to the gear support 56. However, the configuration of the elastic member 74 is not limited to the above configurations.

[0100] Button 72 includes a user access portion 66. The user access portion 66 is configured to be accessible to a user when the user operates the electrical user interface 64. The user access portion 66 is configured to be accessible to a user's hand when the user operates the electrical user interface 64.

[0101] Button 72 includes a proximal portion 72A and a distal portion 72B. Button 72 has a longitudinal central axis A7. Button 72 extends along the longitudinal central axis A7 between the proximal portion 72A and the distal portion 72B. The proximal portion 72A is closer to the switching circuit 70 than the distal portion 72B. User access portion 66 is disposed at the distal portion 72B. User access portion 66 has a first diameter DM1. The proximal portion 72A has a second diameter DM2. The first diameter DM1 is larger than the second diameter DM2. However, depending on need and / or expectation, the first diameter DM1 may be equal to or smaller than the second diameter DM2.

[0102] In this embodiment, the longitudinal central axis A7 of the button 72 is defined as being along a reference direction D1. The longitudinal central axis A7 of the button 72 is defined as being parallel to the reference direction D1. However, the longitudinal central axis A7 of the button 72 may not be parallel to the reference direction D1.

[0103] The base member 12 includes an opening 12C. The motor housing 42 includes an opening 42C. An electrical user interface 64 extends through openings 12C and 42C. A button 72 extends through openings 12C and 42C. The button 72 is movably disposed in opening 42C. The button 72 is movably supported by the motor housing 42. A user access portion 66 is disposed outside the motor housing 42 and the base member 12 so as to be accessible to a user's hand.

[0104] The elastic member 74 is movably mounted to at least one of the motor housing 42 and the gear structure 54. The elastic member 74 is movably mounted to at least one of the motor housing 42 and the gear support 56. At least one of the motor housing 42 and the gear support 56 includes a support hole 56A. The elastic member 74 is movably disposed in the support hole 56A. The proximal portion 72A of the button 72 is movably disposed in the support hole 56A. In this embodiment, the gear support 56 includes the support hole 56A. However, at least one of the motor housing 42 and the gear support 56 may include the support hole 56A.

[0105] The switch circuit 70 includes a first contact 70A and a second contact 70B. The first contact 70A is electrically mounted on the circuit board 62. The second contact 70B is configured to contact the first contact 70A in response to a force applied from the button 72 to the second contact 70B. The second contact 70B is configured to be separated from the first contact 70A when no force is applied from the button 72. That is, the switch circuit 70 is a normally open switch circuit. An elastic member 74 is at least partially disposed between the second contact 70B and the button 72. Force is applied from the button 72 to the second contact 70B through the elastic member 74.

[0106] The switch circuit 70 is made of a first material. The button 72 is made of a second material. The elastic member 74 is made of a third material. The third material is softer than at least one of the first and second materials. In this embodiment, the first material is different from both the second and third materials. The second material is different from the third material. However, the first material may be the same as at least one of the second and third materials. The second material may be the same as the third material.

[0107] The first material comprises a metallic material. The second material comprises a metallic material. The third material comprises a non-metallic material. In this embodiment, for example, the first material comprises copper or a copper alloy. The second material comprises aluminum. The third material comprises an elastomer. However, the first material may comprise a non-metallic material. The second material may comprise a non-metallic material, such as a resin material. The third material may comprise a metallic material. The third material may comprise a spring made of a metallic material.

[0108] A minimum spacing distance MD is defined between the circuit board 62 and a distal portion of the electrical user interface 64, equal to or greater than 5 mm. In a stationary state where the electrical user interface 64 is not operated by a user, the minimum spacing distance MD is defined between the circuit board 62 and the distal portion of the electrical user interface 64. In this embodiment, the minimum spacing distance MD is equal to or greater than 8 mm. The minimum spacing distance MD is equal to or greater than 10 mm. The minimum spacing distance MD is equal to or greater than 13 mm. The minimum spacing distance MD is equal to or greater than 15 mm. The minimum spacing distance MD is equal to or less than 18.5 mm. However, the minimum spacing distance MD is not limited to the above ranges.

[0109] The notification unit 68 includes a light emitter 68A and a light transmission member 68B. The light emitter 68A is configured to emit light. The light emitter 68A is configured to be electrically connected to the circuit board 62. The light transmission member 68B is configured to transmit the light emitted from the light emitter 68A. The light transmission member 68B is made of a transparent material. The motor housing 42 includes a hole 42D. The base member 12 includes a hole 12D. The light transmission member 68B is partially disposed in holes 42D and 12D to conduct light from the motor housing space 58 to the outside of the bicycle derailleur 10.

[0110] As shown in Figure 8, the bicycle derailleur 10 further includes a port 78. The port 78 is configured to be electrically connected to a circuit board 62. The port 78 is configured to be electrically connected to a power source PS. The port 78 is configured to be electrically connected to a cable EC1 and disposed to at least one of the base member 12 and the motor housing 42. The port 78 is configured to receive power through the cable EC1. The port 78 is configured to receive power from the power source PS through the cable EC1. The port 78 is configured to transmit power to the power source PS through the cable EC1. The power source PS is configured to supply power to the circuit board 62, the motor unit 50, and the notification unit 68 through the port 78. The power source PS is electrically connected to the circuit board 62. The power source PS includes a secondary battery configured for recharging. The power source PS is mounted on a bicycle frame 2A (see, for example, Figure 1). For example, the power source PS is mounted on a seatpost of the bicycle frame 2A. However, the power supply PS can be installed on the bicycle derailleur 10.

[0111] In this embodiment, port 78 is disposed to base member 12 and motor housing 42. Port 78 includes a first hole 78A, a second hole 78B, and an electrical connector 78C. First hole 78A is disposed to base member 12. Second hole 78B is disposed to motor housing 42. Electrical connector 78C is disposed in second hole 78B. Electrical connector 78C is configured to be electrically connected to circuit board 62.

[0112] As shown in FIG9, the bicycle derailleur 10 further includes a port 80. The port 80 is configured to be electrically connected to a circuit board 62 (see, for example, FIG8). The port 80 is configured to be electrically connected to a cable EC2 and disposed to at least one of the base member 12 and the motor housing 42. The port 80 is configured to receive power through the cable EC2. The port 80 is configured to receive charging power through the cable EC2. The port 80 is configured to receive charging power from an external power source other than the power supply PS through the cable EC2. The power supply PS is configured to recharge using the charging power received by the port 80.

[0113] In this embodiment, the port 80 is disposed to the motor housing 42. The port 80 is disposed to the motor housing 42 so as to be exposed from the motor housing 42. As seen in FIG3, the bicycle derailleur 10 includes a cover 82. The cover 82 is configured to be detachably attached to the motor housing 42. The cover 82 can be removed from the motor housing 42 without substantial damage and can be reattached to the motor housing 42. In one of the states in which the cover 82 is attached to the motor housing 42, the cover 82 covers the port 80.

[0114] As seen in Figures 7 and 10, the circuit board 62 has a central plane CP that divides one-third of the thickness of the circuit board 62. The circuit board 62 includes a first surface 62A and a second surface 62B. The second surface 62B is disposed on the opposite side of the first surface 62A. The thickness of the circuit board 62 is defined between the first surface 62A and the second surface 62B along a reference direction D1 perpendicular to the central plane CP of the circuit board 62.

[0115] The center plane CP of the circuit board 62 defines a first spatial region SR1 and a second spatial region SR2. The center plane CP of the circuit board 62 is disposed between the first spatial region SR1 and the second spatial region SR2. The second spatial region SR2 is opposite to the center plane CP of the circuit board 62 and the first spatial region SR1.

[0116] The electrical user interface 64 is positioned in a first spatial region SR1 relative to the center plane CP of the circuit board 62. The motor unit 50 is positioned in the first spatial region SR1 relative to the center plane CP of the circuit board 62. The notification unit 68 is positioned in a second spatial region SR2 opposite to the first spatial region SR1 relative to the center plane CP of the circuit board 62. However, the electrical user interface 64 may be positioned in the second spatial region SR2 relative to the center plane CP of the circuit board 62. The motor unit 50 may be positioned in the second spatial region SR2 relative to the center plane CP of the circuit board 62. The notification unit 68 may be positioned in the first spatial region SR1 relative to the center plane CP of the circuit board 62.

[0117] Circuit board 62 is at least partially disposed between the user access portion 66 and the notification unit 68 of the electrical user interface 64 along a reference direction D1 perpendicular to the center plane CP of circuit board 62. Circuit board 62 is at least partially disposed between the motor unit 50 and the notification unit 68 along a reference direction D1 perpendicular to the center plane CP of circuit board 62.

[0118] In this embodiment, the circuit board 62 is completely disposed between the user access portion 66 and the notification unit 68 of the electrical user interface 64 along the reference direction D1. The circuit board 62 is completely disposed between the motor unit 50 and the notification unit 68 along the reference direction D1. However, as needed and / or desired, the circuit board 62 may be partially disposed between the user access portion 66 and the notification unit 68 of the electrical user interface 64 along the reference direction D1. As needed and / or desired, the circuit board 62 may be partially disposed between the motor unit 50 and the notification unit 68 along the reference direction D1.

[0119] Circuit board 62 is at least partially disposed along reference direction D1 in a maximum region MR1 defined between the user access portion 66 and the notification unit 68 of the electrical user interface 64. Maximum region MR1 is defined along reference direction D1 between a portion of the user access portion 66 furthest from circuit board 62 and a portion of the notification unit 68 furthest from circuit board 62. Circuit board 62 is at least partially disposed along reference direction D1 in a maximum region MR2 defined between the motor unit 50 and the notification unit 68. Maximum region MR2 is defined along reference direction D1 between a portion of the motor unit 50 furthest from circuit board 62 and a portion of the notification unit 68 furthest from circuit board 62. In this embodiment, circuit board 62 is completely disposed in maximum region MR1. Circuit board 62 is completely disposed in maximum region MR2. However, circuit board 62 may be partially disposed in maximum region MR1. Circuit board 62 may be partially disposed in maximum region MR2.

[0120] The motor unit 50 is at least partially disposed between the user access portion 66 of the electrical user interface 64 and the circuit board 62 along a reference direction D1 perpendicular to the center plane CP of the circuit board 62. The motor unit 50 is at least partially disposed between the user access portion 66 of the electrical user interface 64 and the notification unit 68 along the reference direction D1.

[0121] In this embodiment, the motor unit 50 is partially disposed between the user access portion 66 of the electrical user interface 64 and the circuit board 62 along a reference direction D1 perpendicular to the center plane CP of the circuit board 62. The motor unit 50 is partially disposed between the user access portion 66 of the electrical user interface 64 and the notification unit 68 along the reference direction D1. However, depending on need and / or expectation, the motor unit 50 may be completely disposed between the user access portion 66 of the electrical user interface 64 and the circuit board 62 along the reference direction D1. Depending on need and / or expectation, the motor unit 50 may be completely disposed between the user access portion 66 of the electrical user interface 64 and the notification unit 68 along the reference direction D1.

[0122] The motor unit 50 is at least partially disposed along the reference direction D1 in a maximum region MR3 defined between the user access portion 66 and the circuit board 62 of the electrical user interface 64. The maximum region MR3 is defined along the reference direction D1 between a portion of the user access portion 66 furthest from the motor unit 50 and a portion of the circuit board 62 furthest from the motor unit 50. The motor unit 50 is at least partially disposed along the reference direction D1 in a maximum region MR4 defined between the user access portion 66 and the notification unit 68 of the electrical user interface 64. The maximum region MR4 is defined along the reference direction D1 between a portion of the user access portion 66 furthest from the motor unit 50 and a portion of the notification unit 68 furthest from the motor unit 50. The maximum region MR4 is the same as the maximum region MR1. In this embodiment, the motor unit 50 is completely disposed in the maximum region MR3. The motor unit 50 is completely disposed in the maximum region MR4. However, the motor unit 50 may be partially disposed in the maximum region MR3. The motor unit 50 may be partially located in the maximum zone MR4.

[0123] A gear structure 54 is at least partially disposed between the user access portion 66 of the electrical user interface 64 and the circuit board 62 along the reference direction D1. A gear support member 56 is at least partially disposed between the user access portion 66 of the electrical user interface 64 and the circuit board 62 along the reference direction D1. A gear support member 56 is at least partially disposed between the motor 52 and the circuit board 62 along the reference direction D1.

[0124] In this embodiment, the gear structure 54 is partially disposed between the user access portion 66 of the electrical user interface 64 and the circuit board 62 along the reference direction D1. The gear support member 56 is partially disposed between the user access portion 66 of the electrical user interface 64 and the circuit board 62 along the reference direction D1. The gear support member 56 is partially disposed between the motor 52 and the circuit board 62 along the reference direction D1. However, as needed and / or desired, the gear structure 54 may be completely disposed between the user access portion 66 of the electrical user interface 64 and the circuit board 62 along the reference direction D1. As needed and / or desired, the gear support member 56 may be completely disposed between the user access portion 66 of the electrical user interface 64 and the circuit board 62 along the reference direction D1. As needed and / or desired, the gear support member 56 may be completely disposed between the motor 52 and the circuit board 62 along the reference direction D1.

[0125] The gear structure 54 is at least partially disposed along the reference direction D1 in a maximum region MR5 defined between the user access portion 66 of the electrical user interface 64 and the circuit board 62. The maximum region MR5 is defined along the reference direction D1 between a portion of the user access portion 66 furthest from the gear structure 54 and a portion of the circuit board 62 furthest from the gear structure 54. The maximum region MR5 is the same as the maximum region MR3. The gear support member 56 is at least partially disposed along the reference direction D1 in a maximum region MR6 defined between the user access portion 66 and the circuit board 62. The maximum region MR6 is defined along the reference direction D1 between a portion of the user access portion 66 furthest from the gear support member 56 and a portion of the circuit board 62 furthest from the gear support member 56. The maximum region MR6 is the same as the maximum region MR3. The gear support member 56 is at least partially disposed along the reference direction D1 in a maximum region MR7 defined between the motor 52 and the circuit board 62. The maximum region MR7 is defined along the reference direction D1 between the portion of motor 52 furthest from gear support 56 and the portion of circuit board 62 furthest from gear support 56.

[0126] In this embodiment, the gear structure 54 is entirely disposed in the maximum region MR5. The gear support 56 is entirely disposed in the maximum region MR6. The gear support 56 is entirely disposed in the maximum region MR7. However, the gear structure 54 may be partially disposed in the maximum region MR5. The gear support 56 may be partially disposed in the maximum region MR6. The gear support 56 may be partially disposed in the maximum region MR7.

[0127] As shown in FIG11, at least two of the motor unit 50, circuit board 62, electrical user interface 64, and notification unit 68 are configured to at least partially overlap each other when viewed along the reference direction D1. In this embodiment, the circuit board 62 is configured to partially overlap with the motor unit 50, electrical user interface 64, and notification unit 68 when viewed along the reference direction D1. The motor unit 50 is configured to partially overlap with the circuit board 62, electrical user interface 64, and notification unit 68 when viewed along the reference direction D1. The electrical user interface 64 is configured to partially overlap with the motor unit 50, circuit board 62, and notification unit 68 when viewed along the reference direction D1. The notification unit 68 is configured to partially overlap with the motor unit 50, circuit board 62, and electrical user interface 64 when viewed along the reference direction D1.

[0128] However, the circuit board 62 may be configured to at least partially overlap with at least one of the motor unit 50, the electrical user interface 64, and the notification unit 68 when viewed along the reference direction D1. The motor unit 50 may be configured to at least partially overlap with at least one of the circuit board 62, the electrical user interface 64, and the notification unit 68 when viewed along the reference direction D1. The electrical user interface 64 may be configured to at least partially overlap with at least one of the motor unit 50, the circuit board 62, and the notification unit 68 when viewed along the reference direction D1. The notification unit 68 may be configured to at least partially overlap with at least one of the motor unit 50, the circuit board 62, and the electrical user interface 64 when viewed along the reference direction D1.

[0129] As seen in Figures 7 and 10, a first direction D21 or D22 is defined as from the circuit board 62 toward the electrical user interface 64 or from the electrical user interface 64 toward the circuit board 62. A first direction D21 or D22 is defined as from the circuit board 62 toward the user access portion 66 of the electrical user interface 64 or from the user access portion 66 of the electrical user interface 64 toward the circuit board 62. A first direction D31 or D32 is defined as from the notification unit 68 toward the user access portion 66 of the electrical user interface 64 or from the user access portion 66 of the electrical user interface 64 toward the notification unit 68. A first direction D41 or D42 is defined as from the notification unit 68 toward the circuit board 62 or from the circuit board 62 toward the notification unit 68. In this embodiment, the first directions D21, D22, D31, D32, D41, and D42 are defined as parallel to the reference direction D1. However, at least one of the first directions D21, D22, D31, D32, D41, and D42 may not be parallel to the reference direction D1.

[0130] As shown in Figure 11, a plurality of second directions D23 are defined as perpendicular to the first directions D21 or D22. The plurality of second directions D23 are distinct from each other. The plurality of second directions D23 includes all directions extending radially relative to the first directions D21 or D22. A plurality of second directions D33 are defined as perpendicular to the first directions D31 or D32. The plurality of second directions D33 are distinct from each other. The plurality of second directions D33 includes all directions extending radially relative to the first directions D31 or D32. A plurality of second directions D43 are defined as perpendicular to the first directions D41 or D42. The plurality of second directions D43 are distinct from each other. The plurality of second directions D43 includes all directions extending radially relative to the first directions D41 or D42.

[0131] As seen in Figures 7 and 10, when viewed along at least one of the plurality of second directions D23, the circuit board 62 is at least partially disposed between the user access portion 66 and the notification unit 68 of the electrical user interface 64. When viewed along at least one of the plurality of second directions D33, the circuit board 62 is at least partially disposed between the user access portion 66 and the notification unit 68 of the electrical user interface 64. When viewed along at least one of the plurality of second directions D23, the circuit board 62 is at least partially disposed between the motor unit 50 and the notification unit 68. When viewed along at least one of the plurality of second directions D33, the circuit board 62 is at least partially disposed between the motor unit 50 and the notification unit 68.

[0132] In this embodiment, when viewed along at least one of the plurality of second directions D23, the circuit board 62 is completely disposed between the user access portion 66 and the notification unit 68 of the electrical user interface 64. When viewed along at least one of the plurality of second directions D33, the circuit board 62 is completely disposed between the user access portion 66 and the notification unit 68 of the electrical user interface 64. When viewed along at least one of the plurality of second directions D23, the circuit board 62 is completely disposed between the motor unit 50 and the notification unit 68. When viewed along at least one of the plurality of second directions D33, the circuit board 62 is completely disposed between the motor unit 50 and the notification unit 68. However, depending on need and / or expectation, when viewed along at least one of the plurality of second directions D23, the circuit board 62 may be partially disposed between the user access portion 66 and the notification unit 68 of the electrical user interface 64. As needed and / or desired, when viewed along at least one of the plurality of second directions D33, the circuit board 62 may be partially disposed between the user access portion 66 of the electrical user interface 64 and the notification unit 68. As needed and / or desired, when viewed along at least one of the plurality of second directions D23, the circuit board 62 may be partially disposed between the motor unit 50 and the notification unit 68. As needed and / or desired, when viewed along at least one of the plurality of second directions D33, the circuit board 62 may be partially disposed between the motor unit 50 and the notification unit 68.

[0133] When viewed along at least one of the plurality of second directions D23, the motor unit 50 is at least partially disposed between the user access portion 66 of the electrical user interface 64 and the circuit board 62. When viewed along at least one of the plurality of second directions D23, the motor unit 50 is at least partially disposed between the user access portion 66 of the electrical user interface 64 and the notification unit 68. When viewed along at least one of the plurality of second directions D23, the motor unit 50 is at least partially disposed between the notification unit 68 and the circuit board 62.

[0134] In this embodiment, when viewed along at least one of the plurality of second directions D23, the motor unit 50 is partially disposed between the user access portion 66 of the electrical user interface 64 and the circuit board 62. When viewed along at least one of the plurality of second directions D23, the motor unit 50 is partially disposed between the user access portion 66 of the electrical user interface 64 and the notification unit 68. When viewed along at least one of the plurality of second directions D23, the motor unit 50 is partially disposed between the notification unit 68 and the circuit board 62. However, as needed and / or desired, when viewed along at least one of the plurality of second directions D23, the motor unit 50 may be completely disposed between the user access portion 66 of the electrical user interface 64 and the circuit board 62. As needed and / or desired, when viewed along at least one of the plurality of second directions D23, the motor unit 50 may be completely disposed between the user access portion 66 of the electrical user interface 64 and the notification unit 68. As needed and / or desired, the motor unit 50 may be completely positioned between the notification unit 68 and the circuit board 62 when viewed along at least one of the plurality of second directions D23.

[0135] When viewed along at least one of the plurality of second directions D23, the gear structure 54 is at least partially disposed between the user access portion 66 of the electrical user interface 64 and the circuit board 62. When viewed along at least one of the plurality of second directions D23, the gear support member 56 is at least partially disposed between the user access portion 66 of the electrical user interface 64 and the circuit board 62. When viewed along at least one of the plurality of second directions D23, the gear support member 56 is at least partially disposed between the motor 52 and the circuit board 62.

[0136] In this embodiment, when viewed along at least one of the plurality of second directions D23, the gear structure 54 is partially disposed between the user access portion 66 of the electrical user interface 64 and the circuit board 62. When viewed along at least one of the plurality of second directions D23, the gear support member 56 is partially disposed between the user access portion 66 of the electrical user interface 64 and the circuit board 62. When viewed along at least one of the plurality of second directions D23, the gear support member 56 is partially disposed between the motor 52 and the circuit board 62. However, as needed and / or desired, when viewed along at least one of the plurality of second directions D23, the gear structure 54 may be completely disposed between the user access portion 66 of the electrical user interface 64 and the circuit board 62. As needed and / or desired, when viewed along at least one of the plurality of second directions D23, the gear support member 56 may be completely disposed between the user access portion 66 of the electrical user interface 64 and the circuit board 62. As needed and / or desired, when viewed along at least one of the plurality of second directions D23, the gear support 56 can be fully positioned between the motor 52 and the circuit board 62.

[0137] As shown in Figures 1 and 2, the guiding member 36 of the chain guide 30 includes a first guiding member 36A and a second guiding member 36B. The first guiding member 36A is coupled to the second guiding member 36B. The guiding pulley 32 and the tensioning pulley 34 are disposed between the first guiding member 36A and the second guiding member 36B.

[0138] As shown in Figure 12, the chain guide 30 includes a protrusion 84. The protrusion 84 is disposed on the guide member 36. The protrusion 84 protrudes from the guide member 36. The protrusion 84 is disposed on the first guide member 36A. The protrusion 84 protrudes from the first guide member 36A away from the second guide member 36B.

[0139] The protrusion 84 is configured to contact the movable member 14 to restrict the chain guide 30 from pivoting relative to the movable member 14 along a first pivoting direction D91. The movable member 14 includes a stop 14S. The protrusion 84 is configured to contact the stop 14S of the movable member 14 to restrict the chain guide 30 from pivoting relative to the movable member 14 about the chain guide axis A3 along a first pivoting direction D91.

[0140] As seen in Figure 13, the protrusion 84 includes a contact surface 86. The contact surface 86 is configured to contact the stop 14S of the movable member 14. When viewed along the chain guide axis A3, the contact surface 86 includes a curved surface.

[0141] As seen in Figure 14, the protrusion 84 is integrally configured as a single-piece component with the first guide member 36A of the guide member 36. However, the protrusion 84 may be a separate component from the first guide member 36A of the guide member 36.

[0142] The contact surface 86 includes a flat surface extending along the chain guide axis A3. The protrusion 84 includes a protruding end 88, a curved surface 89, and an inclined surface 90. The contact surface 86 is at least partially disposed between the protruding end 88 and the guide member 36. The contact surface 86 extends from the protruding end 88 toward the guide member 36. The curved surface 89 is at least partially disposed between the contact surface 86 and the guide member 36. The curved surface 89 extends from the contact surface 86 to the guide member 36. The inclined surface 90 is inclined relative to the contact surface 86. The inclined surface 90 is at least partially disposed between the protruding end 88 and the guide member 36. The inclined surface 90 extends from the protruding end 88 toward the guide member 36.

[0143] As seen in Figure 13, the contact surface 86 has a first width W11. The inclined surface 90 has a second width W12. The second width W12 is greater than the first width W11. When viewed along the chain guide axis A3, the curved surface 89 at least partially surrounds the contact surface 86 and the inclined surface 90. The shape of the protrusion 84 is not limited to the shapes shown in Figures 12 to 14.

[0144] As seen in Figure 15, the bicycle derailleur 10 includes a chain guide biasing member 92. The chain guide biasing member 92 is configured to bias the chain guide 30 relative to the movable member 14 (see, for example, Figure 12) along a first pivot direction D91. The chain guide biasing member 92 includes a helical body 92A, a first end 92B, and a second end 92C. The helical body 92A couples the first end 92B to the second end 92C. The first end 92B engages with the movable member 14. The second end 92C engages with the chain guide 30. The second end 92C engages with the first guide member 36A of the guide member 36.

[0145] As shown in FIG. 16, the first guide member 36A includes a guide body 36C and a reinforcing body 36D. The reinforcing body 36D is at least partially disposed in the guide body 36C. The reinforcing body 36D is at least partially embedded in the guide body 36C. For example, the reinforcing body 36D is at least partially embedded in the guide body 36C using insert molding. However, the reinforcing body 36D can be fastened to the guide body 36C using other structures such as adhesives or fasteners.

[0146] The reinforcing body 36D is made of a material different from that of the guiding body 36C. For example, the reinforcing body 36D is made of a material with higher durability than that of the guiding body 36C. The reinforcing body 36D is made of a material harder than that of the guiding body 36C. For example, the reinforcing body 36D is made of a metallic material. The guiding body 36C is made of a non-metallic material. However, the materials of the guiding body 36C and the reinforcing body 36D are not limited to the above-mentioned materials.

[0147] The guide body 36C includes a first opening 36E and a second opening 36F. The reinforcing body 36D includes a third opening 36G. The second end 92C of the chain guide biasing member 92 is disposed in the first opening 36E, the second opening 36F and the third opening 36G.

[0148] The bicycle derailleur 10 includes a pivot shaft 94 and a pivot fastener 96. The movable member 14 includes a support hole 14H. The pivot shaft 94 is pivotally disposed in the support hole 14H. The pivot fastener 96 is configured to fasten the pivot shaft 94 to the guide member 36. The pivot fastener 96 is configured to fasten the pivot shaft 94 to a first guide member 36A. The pivot fastener 96 is configured to fasten the pivot shaft 94 to a reinforcing body 36D of the first guide member 36A. The pivot shaft 94 and the pivot fastener 96 are configured to contact the reinforcing body 36D. However, the pivot shaft 94 and the pivot fastener 96 are configured not to contact the guide body 36C.

[0149] As seen in Figure 17, the reinforcing body 36D contacts the second end 92C of the chain guide biasing member 92 to receive the biasing force from the chain guide biasing member 92. The guiding body 36C is spaced apart from the second end 92C of the chain guide biasing member 92 to avoid receiving the biasing force from the chain guide biasing member 92. The reinforcing body 36D is at least partially exposed from the second opening 36F.

[0150] As seen in Figure 18, the reinforcing body 36D includes an outer periphery 36P having a concave-convex profile. The reinforcing body 36D includes an annular member 36H and a plurality of teeth 36T. The plurality of teeth 36T extend radially outward from the annular member 36H. The plurality of teeth 36T define the concave-convex profile. The reinforcing body 36D is configured to pivot integrally with the guiding body 36C about the chain guide axis A3. The reinforcing body 36D is configured to transmit a biasing force from the second end 92C of the chain guide biasing member 92 to the guiding body 36C.

[0151] As shown in Figure 14, the protrusion 84 is integrally formed as a single-piece component with the guide body 36C of the first guide member 36A of the guide member 36. However, the protrusion 84 may be a separate component from the guide body 36C of the first guide member 36A of the guide member 36. (Modification)

[0152] The positional relationship between the motor unit 50, the circuit board 62, the user interface 64, and the notification unit 68 is not limited to the above embodiment. For example, as seen in Figures 19 and 20, the motor unit 50 may be at least partially disposed between the notification unit 68 and the circuit board 62 along a reference direction D1 perpendicular to the center plane CP of the circuit board 62.

[0153] As shown in Figure 19, the motor unit 50 is at least partially disposed between the circuit board 62 and the notification unit 68 along the reference direction D1. In this modification, the light emitter 68A and the light transmission member 68B are integrally disposed as a single unit. The notification unit 68 is spaced apart from the circuit board 62 and attached to the motor housing 42. The notification unit 68 is electrically connected to the circuit board 62 via a wire. The notification unit 68 and the motor unit 50 are disposed in the second spatial region SR2.

[0154] As shown in Figure 20, the motor unit 50 may be at least partially disposed between the circuit board 62 and the notification unit 68 along the reference direction D1. In this modification, the light emitter 68A is separated from the light transmission member 68B. The motor unit 50 is disposed in the second spatial region SR2.

[0155] In the above embodiments and modifications, the electrical user interface 64 is configured to be disposed on at least one of the base member 12 and the movable member 14. The circuit board 62 and the electrical user interface 64 are disposed on at least one of the base member 12 and the movable member 14. The motor unit 50 is disposed on at least one of the base member 12 and the movable member 14. The notification unit 68 is disposed on at least one of the base member 12 and the movable member 14. Specifically, the circuit board 62, the electrical user interface 64, the motor unit 50, and the notification unit 68 are disposed on the base member 12. However, the circuit board 62 may be disposed on the movable member 14 or both the base member 12 and the movable member 14. The electrical user interface 64 may be disposed on the movable member 14 or both the base member 12 and the movable member 14. The motor unit 50 may be disposed on the movable member 14 or both the base member 12 and the movable member 14. The notification unit 68 can be configured to either the movable member 14 or both the base member 12 and the movable member 14.

[0156] As shown in FIG21, the first directions D21, D22, D31, D32, D41, and D42 can be defined three-dimensionally as each direction between two elements. For example, if one of the first directions DN1 or DN2 is defined as either from a first element X toward a second element Y or from a second element Y toward a first element X, then the first directions DN1 and DN2 are defined three-dimensionally as each direction between the first element X and the second element Y. As shown in FIG7 and FIG10, in the above embodiment, the first directions D21, D22, D31, D32, D41, and D42 are defined as a reference direction D1 parallel to the center plane CP perpendicular to the circuit board 62. However, each of the directions D21, D22, D31, D32, D41, and D42 can be defined as a reference direction D1 that is not parallel to the center plane CP perpendicular to the circuit board 62.

[0157] As shown in Figure 22, a plurality of second directions DN3 are defined as perpendicular to the first direction DN1 or DN2. The plurality of second directions DN3 include all directions that extend radially relative to the first direction DN1 or DN2.

[0158] In this application, as used herein, the term "comprising" and its derivatives are intended to be open-ended terms, specifying the presence of stated features, elements, components, groups, integers and / or steps, but not excluding the presence of other unstated features, elements, components, groups, integers and / or steps. This concept also applies to words with similar meanings, such as the terms "having," "comprising," and their derivatives.

[0159] When used in the singular, the terms “component”, “section”, “part”, “part”, “element”, “body” and “structure” may have the dual meaning of a single component or a plurality of components.

[0160] The ordinal numbers (such as "first" and "second") referenced in this application are merely identifiers and have no other meaning, such as a particular order or the like. Furthermore, for example, the term "first element" does not imply the existence of one of the "second elements," and the term "second element" does not imply the existence of one of the "first elements."

[0161] As used herein, the term "pair" may cover configurations in which the pair of elements have the same shape or structure as each other, as well as configurations in which the pair of elements have different shapes or structures from each other.

[0162] The terms “a” (or “one”), “one or more” and “at least one” are used interchangeably in this document.

[0163] The phrase “…at least one” as used in this invention means “one or more” of a selection. For one instance, the phrase “…at least one” as used in this invention means “a single selection” or “two selections”, provided that the number of selections is two. For other instances, the phrase “…at least one” as used in this invention means “a single selection” or “any combination equal to or greater than two selections”, provided that the number of selections is equal to or greater than three. For example, the phrase “at least one of A and B” covers (1) A alone, (2) B alone, and (3) both A and B. The phrase “at least one of A, B and C” covers (1) A alone, (2) B alone, (3) C alone, (4) both A and B, (5) both B and C, (6) both A and C, and (7) all of A, B and C. In other words, in this invention, the phrase "at least one of A and B" does not mean "at least one of A and at least one of B".

[0164] Finally, the degree terms used herein (such as “substantially,” “about,” and “approximately”) mean that a reasonable deviation of one of the terms being modified does not significantly change the final result. All numerical values ​​described in this application may be interpreted as including terms such as “substantially,” “about,” and “approximately.”

[0165] Obviously, in view of the foregoing teachings, numerous modifications and variations of the present invention are possible. Therefore, it should be understood that the present invention may be practiced in ways other than those specifically described herein, within the scope of the appended claims. [Simplified Explanation of the Diagram]

[0167] A more thorough understanding of the invention and one of its many accompanying advantages will be readily obtained, as the invention and its many accompanying advantages will be better understood by referring to the following detailed description when considered in conjunction with the accompanying drawings.

[0168] FIG1 is a side view of a bicycle including a bicycle derailleur according to an embodiment.

[0169] Figure 2 is another side view of the bicycle shown in Figure 1.

[0170] Figure 3 is a perspective view of one of the bicycle derailleurs shown in Figure 1.

[0171] Figure 4 is another perspective view of the bicycle derailleur shown in Figure 1.

[0172] Figure 5 is a perspective view of one of the bicycle gearboxes shown in Figure 1, in which a base component and a motor housing are partially omitted.

[0173] Figure 6 is a cross-sectional view of the bicycle derailleur along line VI-VI of Figure 4.

[0174] Figure 7 is a cross-sectional view of the bicycle derailleur along line VII-VII of Figure 4.

[0175] Figure 8 is a cross-sectional view of the bicycle derailleur along line VIII-VIII of Figure 3.

[0176] Figure 9 is a perspective view of one of the bicycle derailleurs shown in Figure 1, in which a cover is omitted.

[0177] Figure 10 is a cross-sectional view of the bicycle derailleur along line XX in Figure 4.

[0178] Figure 11 is a side view of the bicycle gearbox shown in Figure 1, in which the base component and motor housing are partially omitted.

[0179] Figure 12 is a perspective view of one of the bicycle derailleurs shown in Figure 1.

[0180] Figure 13 is an enlarged side view of one of the bicycle derailleurs shown in Figure 1.

[0181] Figure 14 is a cross-sectional view of the bicycle derailleur along line XIV-XIV of Figure 13.

[0182] Figure 15 is a perspective view of one of the bicycle gearboxes shown in Figure 1, in which a movable component is omitted.

[0183] Figure 16 is a cross-sectional view of the bicycle gearbox shown in Figure 1.

[0184] Figure 17 is a perspective view of one of the bicycle derailleurs shown in Figure 1, wherein a second guide member is omitted.

[0185] Figure 18 is a cross-sectional view of the bicycle derailleur shown in Figure 1.

[0186] Figure 19 is a schematic diagram of a bicycle gearbox according to a modification.

[0187] Figure 20 is a schematic diagram of one of the bicycle derailleurs according to another modification.

[0188] Figure 21 is a schematic diagram showing one of the first directions defined as from a first element toward a second element or from a second element toward a first element.

[0189] Figure 22 shows a schematic diagram defined as one of the first directions and one of the second directions.

Claims

1. A bicycle rear derailleur, comprising: A single circuit board; A motor housing comprising a motor receiving space, wherein the single circuit board is provided at least partially in the motor receiving space; A motor configured to generate rotational force, the motor being electrically connected to the single circuit board, the motor being provided within the motor housing space; and a notification unit configured to notify a user of information, the notification unit being electrically connected to the single circuit board, a first direction being defined as either from the single circuit board toward the user interface or from the user interface toward the single circuit board, a plurality of second directions being defined as perpendicular to the first direction, and the single circuit board being at least partially disposed between the motor and the notification unit when viewed along at least one of the plurality of second directions.

2. The bicycle rear derailleur of claim 1, wherein the notification unit is connected to the single circuit board without passing through another circuit board; and the motor is connected to the single circuit board without passing through another circuit board.

3. The bicycle rear derailleur of claim 1 or 2 further comprises: a base member configured to be mounted to a bicycle frame; a movable member movably coupled to the base member; a linkage member movably coupling the movable member to the base member; and a motor housing attached to the base member.

4. The bicycle rear derailleur as claimed in claim 3, wherein the base member includes a first base member and a second base member; and the motor housing is held between the first base member and the second base member.

5. The bicycle rear derailleur as claimed in claim 3, wherein the notification unit includes a light emitter and a light transmission member; the base member includes a first hole; the motor housing includes a second hole; and the light transmission member is partially disposed in the first hole and the second hole.

6. The bicycle rear derailleur as claimed in claim 1 or 2, wherein the notification unit includes a light emitter and a light transmission member; and when viewed along the first direction, the light emitter and the light transmission member overlap.

7. The bicycle rear derailleur as claimed in claim 1 or 2, wherein the notification unit includes a light emitter and a light transmission member; and when viewed along the first direction, the light emitter is at least partially offset from the motor.

8. The bicycle rear derailleur as claimed in claim 1 or 2, wherein the motor faces directly toward the motor housing in the first direction.

9. The bicycle rear derailleur of claim 1 or 2 further includes: a gear structure configured to change the rotational force based on a reduction ratio, the gear structure not disposed between the motor and the single circuit board.

10. The bicycle rear derailleur of claim 1 or 2 further comprises: a gear structure configured to change the rotational force based on a reduction ratio, wherein, when viewed along the first direction, a majority of the gear structure is offset from the motor.

11. The bicycle rear derailleur of claim 1 or 2 further includes: a port configured to be connected to a cable, the port being configured to be electrically connected to a power source mounted on a bicycle frame, the port being configured to receive power via the cable.

12. The bicycle rear derailleur of claim 11, wherein when viewed along at least one of the plurality of second directions, the single circuit board is at least partially disposed between the motor and the port.

13. A bicycle rear derailleur, comprising: A single circuit board having a central plane that divides a portion of the thickness of the single circuit board; a motor housing including a motor receiving space, the single circuit board being at least partially provided in the motor receiving space; a motor configured to generate rotational force, the motor being electrically connected to the single circuit board, the motor being provided in the motor receiving space, the motor being disposed in a first spatial region relative to the central plane of the single circuit board; and a notification unit configured to notify a user of information and configured to be electrically connected to the single circuit board, the notification unit being disposed in a second spatial region opposite to the first spatial region relative to the central plane of the single circuit board.

14. The bicycle rear derailleur of claim 13, wherein the notification unit is connected to the single circuit board without passing through another circuit board; and the motor is connected to the single circuit board without passing through another circuit board.

15. The bicycle rear derailleur of claim 13 or 14 further comprises: a base member configured to be mounted to a bicycle frame; a movable member movably coupled to the base member; a linkage member movably coupling the movable member to the base member; and a motor housing attached to the base member.

16. The bicycle rear derailleur of claim 15, wherein the base member includes a first base member and a second base member; and the motor housing is held between the first base member and the second base member.

17. The bicycle rear derailleur of claim 15, wherein the notification unit includes a light emitter and a light transmission member; the base member includes a first hole; the motor housing includes a second hole; and the light transmission member is partially disposed in the first hole and the second hole.

18. The bicycle rear derailleur as claimed in claim 13 or 14, wherein the notification unit includes a light emitter and a light transmission member; and when viewed along a reference direction perpendicular to the central plane of the single circuit board, the light emitter and the light transmission member overlap.

19. The bicycle rear derailleur as claimed in claim 13 or 14, wherein the notification unit includes a light emitter and a light transmission member; and when viewed along a reference direction perpendicular to the central plane of the single circuit board, the light emitter is at least partially offset from the motor.

20. The bicycle rear derailleur as claimed in claim 13 or 14, wherein the motor faces directly toward the motor housing in a reference direction perpendicular to the center plane of the single circuit board.

21. The bicycle rear derailleur of claim 13 or 14 further includes: a gear structure configured to change the rotational force based on a reduction ratio, the gear structure not disposed between the motor and the single circuit board.

22. The bicycle rear derailleur of claim 13 or 14 further comprises: a gear structure configured to change the rotational force based on a reduction ratio, wherein a majority of the gear structure is offset from the motor when viewed along a reference direction perpendicular to the center plane of the single circuit board.

23. The bicycle rear derailleur of claim 13 or 14 further includes: a port configured to be connected to a cable, the port being configured to be electrically connected to a power source mounted on a bicycle frame, the port being configured to receive power via the cable.

24. The bicycle rear derailleur as claimed in claim 23, wherein the power port is located in the second space area.

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