Abstract: A bicycle operating device mounting assembly is basically provided with a handlebar mounting clamp and an adapter member. The handlebar mounting clamp has a clamp opening. The adapter member includes at least a first part that is detachably disposed within the clamp opening. The first part is configured to be clamped between the handlebar mounting clamp and a handlebar as the handlebar mounting clamp is tightened in a state that the first part is disposed within the clamp opening.

Abstract: A device for mounting a front derailleur on a bicycle frame is provided. The device comprises engagement means for engaging with at least one toothed crown of a crankset and with the derailleur, the engagement means being configured to obtain a desired relative position between the at least one toothed crown and the derailleur. A method for mounting the front derailleur on the bicycle frame is also provided, such a method providing for the use of the device.

Abstract: A bicycle drive unit includes a motor, which outputs assist force in correspondence with human-powered drive force applied to a crankshaft, and a housing, in which the motor is arranged. The housing includes a coupler, to which a derailleur can be coupled.

Abstract: A front derailleur of a bicycle comprises a retaining ring disposed on a bottom end of a seat post, the retaining ring including two coupling seats symmetrically fixed thereon to axially connect with a pushing mechanism comprised of a cable rack, a limiting stem, a connecting rod set, a guiding loop, an axial pillar, an assembling bracket, and a guide plate, the coupling seat including the connecting rod set having a first, a second, a third, and a fourth connecting rods, a shaft, and the guiding loop, wherein the coupling seat includes a first hole formed on a bottom end of a side thereof so that a first screw inserts through a first bore of the cable rack and a turning spring to screw with the first hole of the coupling seat, and includes two first tabs mounted on top ends thereof respectively to connected with the axial pillar axially.

Abstract: A transmission for a bicycle includes a derailleur shaft supported by a case member. A derailleur arm is movably journaled by the derailleur shaft. A guide rotational body is rotatably supported by the derailleur arm and an endless power transmission belt is wound therearound. The endless power transmission belt is shifted among a plurality of rotational body elements which constitute a speed-change rotational body for changing the speed-change ratio. An operating pin is connected to a wire which moves in the fore-and-aft direction in accordance with the speed-change operation so that the derailleur arm is rotated with respect to the derailleur shaft and translated toward the center axis of the derailleur shaft by the operating pin being moved while being guided through the guide hole by the speed-change operation via the wire. A roller is rotatably journaled by the operating pin is rotatably fitted in the guide hole.

Abstract: A bicycle front derailleur includes a chain guide that is provided with a pushing element that is movable relative to the chain guide to assist in shifting a bicycle chain from a smaller front sprocket to an adjacent larger sprocket. The chain guide is part of a movable member that is movably coupled to a base member via a linkage assembly. The pushing element has a contact surface that preferably moves both laterally outwardly and longitudinally as the pushing element moves from a first position to a second position. Preferably, the pushing element is chain activated and arranged to move at least laterally outwardly by contacting a chain that is moving between inner and outer chain guide members of the movable member. Preferably, the pushing element is either a slidable member or a rotatable member.

Abstract: A traveling screen system has a traveling screen guided about a multiplicity of support and guide rollers. A scanning device scans a transverse position of the traveling screen and an adjusting device adjusts the angular orientation of at least one of the support and guide rollers. The adjusting device is supported on one side on a displaceable bearing block which is supported on a carriage. Between the control device for the bearing block of the displaceable roller and the scanning device, a coupling is provided by which a return of the control motion of the roller to the scanning device is effected. The coupling is formed by a Bowden cable, by a hydraulic circuit with control cylinders, or by an electric circuit with control devices.

Abstract: A bicycle rear derailler shifting controller, which includes a base with a coupling tube, a rotary knob coupled to the coupling tube of the base, a cover plate fastened to the base to guide rotary motion of the rotary knob, and a derailler cable driven by the rotary knob to shift the rear derailler mechanism of the bicycle, wherein the coupling tube has a longitudinal sliding track and a cable hole; the derailler cable has one end inserted through the cable hole at the coupling tube and terminating in an endpiece, which is moved by the rotary knob along the longitudinal sliding track; the rotary knob has a sleeve coupled to the coupling tube of the base, the sleeve has an axial center hole, which receives the coupling tube, and a stepped guide flange inside the axial center hole, the stepped guide flange having radially extended straight edges and axially extended sloping edges alternatively arranged at one end adjacent to the base and moved with the rotary knob against the endpiece of the derailler cable to

Abstract: A band adapter is provided for adapting a front derailleur of a bicycle to smaller sized frame tube. The front derailleur has a fixed member or tubular coupling member that is adapted to be coupled to the seat tube of the bicycle, a chain guide for shifting the chain of the bicycle and a linkage assembly coupled between the tubular coupling member and the chain guide. The band adapter is coupled to the tubular coupling member to decrease the effective clamping diameter of the tubular clamping member. In the preferred embodiment, the band adapter includes an adapting member and a band retaining member which are coupled to the tubular clamping member of the front derailleur for easy installation. The adapting member includes a first adapter with a first curved portion and a second adapter with a second curved portion. The band retaining member includes a first retainer with the first adapter coupled thereto and a second retainer with the second adapter coupled thereto.

Abstract: A front derailleur for a bicycle is provided to move or shift a chain between two or more sprockets for changing gears. The front derailleur can be connected to the shift cable such that the shift cable is pulled upwardly or downwardly relative to the bicycle frame. The front derailleur has a fixed member adapted to be coupled to a portion of the bicycle, a chain guide for shifting the chain of the bicycle and a linkage assembly coupled between the fixed member and the chain guide. The chain guide is located above the fixed member and a coil spring is used to bias the chain guide from an extended position to a retracted position. A detachable guide member is removably coupled to the linkage assembly for guiding the shift cable downwardly and then upwardly relative to the bicycle frame for use with an upwardly pulled shift cable. If the detachable guide member is removed, then the shift cable is only pulled downwardly relative to the bicycle frame for use with a downwardly pulled shift cable.

Abstract: A cable support member includes a base member having an opening for receiving a fastener for fastening the base member to the bicycle. First and second spaced apart cable guides are integrally formed with and extend from the base member. The first and/or second cable guides may be formed as panels, each of which may have an opening for receiving a derailleur cable therethrough A rib may be provided which extends from the first cable guide toward the second cable guide to help reinforce the first and second cable guides.

Abstract: A bicycle derailer of the type wherein a movable derailer member moves relative to another member for positioning the chain guide relative to a first sprocket and a second sprocket. An indicating member is disposed on one of the movable derailer member or the other member, and indicium is disposed on the other one of the movable member or the other member. A relative position between the indicating member and the indicium indicates a position of the chain guide relative to the first sprocket and the second sprocket. Thus, the derailer may be adjusted to a desired position by moving the chain guide so that the indicating member is set to a desired position relative to the indicium.

Abstract: A shift control device includes a movable member having a cable support for supporting the transmission cable, wherein the movable member moves as the shifting device actuates the transmission. An assist spring is provided for biasing the movable member in a direction opposite a direction of biasing of the movable member by the return spring of the transmission. The cable support supports the transmission cable such that tension exerted by the assist spring on the transmission cable remains substantially constant regardless of a position of the movable member as the shifting device actuates the transmission. In a more specific embodiment, the cable support moves the transmission cable in a straight line, and the cable support may move the transmission cable without winding the transmission cable about the cable support.

Abstract: The speed gear device is particularly distinctive in that it includes a third movable fork side (11) mounted in a movable manner between the internal side (9a) and the external side (9b) of a fork (9) for guiding the chain (A) with a substantial spacing, in order to act in connection with the control means when the speed gear device is actuated, to guide the chain from a sprocket wheel to the other sprocket wheel.