Abstract: An adjusting mechanism is provided for a bicycle derailleur, which can adjust a position of a chain guide in an axial direction. The derailleur basically has a base member, a movable member with the chain guide and a linkage assembly. The adjustment mechanism is preferably operatively coupled between the movable member and the chain guide, or between the base member and the frame. The adjusting mechanism includes a first tubular portion, a second tubular portion, a biasing member and an adjustment member. The second tubular portion is arranged around the first tubular portion to move axially relative to the first tubular portion via the adjustment member. The biasing member is arranged to apply an urging force on the tubular portions. One of the tubular portions has a rigid non-compressible support projection arranged to selectively contact the other tubular portion when the tubular portions move relative to each.

Abstract: A bicycle derailleur comprises a first base member structured to be detachably mounted to a bicycle frame, wherein the first base member has a first abutment; a second base member structured to be mounted to the first base member, wherein the second base member has a second abutment that faces the first abutment of the first base member and the first and second base members define a housing space between them; a drive mechanism at least partially disposed in the housing space; a link mechanism that moves in response to movement of the drive mechanism; a chain guide coupled to the link mechanism for moving a chain among a plurality of sprockets; and a misalignment inhibiting structure disposed between the first base member and the second base member to inhibit misalignment of the drive mechanism as a result of an external force.

Abstract: A rear derailleur for a bicycle includes a base member for attaching the rear derailleur to the bicycle, a movable member for supporting a chain guide, and a linkage mechanism coupling the base member to the movable member so that the movable member is capable of movement relative to the base member. An electrically operated actuating member is operatively coupled to the linkage mechanism, wherein moving the actuating member in a first direction causes the movable member to move laterally toward a rear wheel of the bicycle, and moving the actuating member in a second direction causes the movable member to move laterally away from the rear wheel of the bicycle. A power storing mechanism is disposed in a power transmission path between the actuating member and the movable member for storing relative forces applied between the actuating member and the movable member.

Abstract: A derailleur position processing apparatus includes a derailleur moving member that moves with the derailleur; an analog signal providing mechanism operatively coupled to the derailleur moving member, wherein the analog signal providing mechanism provides an analog position signal in response to movement of the derailleur moving member; and a digital signal providing mechanism operatively coupled to the derailleur moving member, wherein the digital signal providing mechanism provides a digital position signal in response to movement of the derailleur moving member.

Abstract: An apparatus for moving an electrically controlled bicycle derailleur from a first sprocket to a second sprocket comprises a derailleur position input for receiving a signal indicating a position of the derailleur; a memory storing a first reference derailleur position for the second sprocket; and a motion control circuit that provides a plurality of signals to move the derailleur from the first sprocket to the second sprocket. The plurality of signals comprises a first signal generated when the derailleur initially moves away from the first sprocket and a second signal generated when the derailleur is in close proximity to the second sprocket.

Abstract: A sensor retainer for a bicycle sprocket assembly includes an annular member for mounting and rotating coaxially with the bicycle sprocket assembly and a sensor element fixed to the annular member. Alternatively, the sensor retainer may include a fixing member for mounting a derailleur or other transmission to a bicycle frame and a sensor element mounted to the fixing member.

Abstract: A motorized bicycle actuator assembly has a motorized actuator unit arranged to operate a bicycle component. The motorized actuator unit has a drive train coupled to a reversible motor, and a position switch device or an overcurrent detecting circuit coupled to the motor to stop rotation of a drive axle of the drive train at first and second stop positions. The bicycle component is coupled to the drive axle to move a movable member between a first and second preset component positions that correspond to the first and second stop positions of the drive axle, respectively. First and second shock absorbing elements are arranged to cushion the drive train when the drive axle moves past the first and second stop positions of the drive axle, respectively.

Abstract: A sensor retainer for a bicycle sprocket assembly includes an annular member for mounting and rotating coaxially with the bicycle sprocket assembly and a sensor element fixed to the annular member. Alternatively, the sensor retainer may include a fixing member for mounting a derailleur or other transmission to a bicycle frame and a sensor element mounted to the fixing member.

Abstract: A sensor retainer for a bicycle sprocket assembly includes an annular member for mounting and rotating coaxially with the bicycle sprocket assembly and a sensor element fixed to the annular member. Alternatively, the sensor retainer may include a fixing member for mounting a derailleur or other transmission to a bicycle frame and a sensor element mounted to the fixing member.

Abstract: An apparatus for moving an electrically controlled bicycle derailleur from a first sprocket to a second sprocket comprises a derailleur position input for receiving a signal indicating a position of the derailleur; a memory storing a first reference derailleur position for the second sprocket; and a motion control circuit that provides a plurality of signals to move the derailleur from the first sprocket to the second sprocket. The plurality of signals comprises a first signal generated when the derailleur initially moves away from the first sprocket and a second signal generated when the derailleur is in close proximity to the second sprocket.

Abstract: A gear shift control apparatus comprises a shift command input that receives shift commands indicating a desired gear shift operation, a control output that outputs controls signals that control a gear shift unit to shift the bicycle transmission, a gear shift monitor that monitors a progress of a gear shift operation by the gear shift unit, and a gear shift controller operatively coupled to the shift command input, to the control output, and to the gear shift monitor. The gear shift controller receives a shift command and outputs a control signal that controls the operation of the gear shift unit to shift the bicycle transmission to a target gear. The gear shift controller modifies the control signal when the gear shift controller receives a second shift command corresponding to a second target gear that differs from a first target gear corresponding to a first shift command and the gear shift operation initiated by the first shift command has not completed.

Abstract: A motorized bicycle actuator assembly has a motorized actuator unit arranged to operate a bicycle component. The motorized actuator unit has a drive train coupled to a reversible motor, and a position switch device or an overcurrent detecting circuit coupled to the motor to stop rotation of a drive axle of the drive train at first and second stop positions. The bicycle component is coupled to the drive axle to move a movable member between a first and second preset component positions that correspond to the first and second stop positions of the drive axle, respectively. First and second shock absorbing elements are arranged to cushion the drive train when the drive axle moves past the first and second stop positions of the drive axle, respectively.

Abstract: An electrical operating device for a bicycle includes a brake control device adapted to be mounted to a handlebar of the bicycle and a switching device integrated with the brake control device. The brake control device includes a first operating member that moves along a first path for controlling the operation of a brake, and the switching device outputs electrical signals in response to movement of the switching device along a second path different from the first path.

Abstract: A sensor retainer for a bicycle sprocket assembly includes an annular member for mounting and rotating coaxially with the bicycle sprocket assembly and a sensor element fixed to the annular member. Alternatively, the sensor retainer may include a fixing member for mounting a derailleur or other transmission to a bicycle frame and a sensor element mounted to the fixing member.

Abstract: An adjusting mechanism is provided for a bicycle derailleur, which can adjust a position of a chain guide in an axial direction. The derailleur basically has a base member, a movable member with a chain guide and a linkage assembly. The adjustment mechanism is operatively coupled between the movable member and the chain guide. In one embodiment, the movable member has the adjusting mechanism that movably supports the movable member in an axial direction on a second axle. The adjusting mechanism basically has a first tubular guide portion extending from the movable member to pivotally engage the second axle. A second tubular guide portion extends from the chain guide and is arranged around the first tubular guide portion. A biasing member is positioned between the first and second tubular guide portion to urge the movable member relative to chain guide in a rotational direction about the second axle.

Abstract: A sensor retainer for a bicycle sprocket assembly includes an annular member for mounting and rotating coaxially with the bicycle sprocket assembly and a sensor element fixed to the annular member. Alternatively, the sensor retainer may include a fixing member for mounting a derailleur or other transmission to a bicycle frame and a sensor element mounted to the fixing member.

Abstract: A sensor retainer for a bicycle sprocket assembly includes an annular member for mounting and rotating coaxially with the bicycle sprocket assembly and a sensor element fixed to the annular member. Alternatively, the sensor retainer may include a fixing member for mounting a derailleur or other transmission to a bicycle frame and a sensor element mounted to the fixing member.

Abstract: An electrical operating device for a bicycle includes a brake control device adapted to be mounted to a handlebar of the bicycle and a switching device integrated with the brake control device. The brake control device includes a first operating member that moves along a first path for controlling the operation of a brake, and the switching device outputs electrical signals in response to movement of the switching device along a second path different from the first path.

Abstract: An electrical operating device for a bicycle includes a brake control device adapted to be mounted to a handlebar of the bicycle and a switching device integrated with the brake control device. The brake control device includes a first operating member that moves along a first path for controlling the operation of a brake, and the switching device outputs electrical signals in response to movement of the switching device along a second path different from the first path.

Abstract: A motor driven derailleur includes a base member; a movable member; and a linkage mechanism including a link member coupled to the base member and to the movable member so that the movable member moves relative to the base member, wherein the link member is pivotably coupled to one of the base member and the movable member through a first link coupling member. A motor is provided for rotating the first link coupling member, wherein the movable member moves relative to the base member in response to rotation of the first link coupling member.