ADAPTATION OF VARIOUS ALTERNATIVE CONTROL DEVICES TO FRONT AND REAR CHANGES FOR CYCLES AND RELATED VEHICLES. FRONT OR REVERSE GEAR CHANGE DEVICE FOR CYCLES AND SIMILAR VEHICLES

摘要

P Front or rear gear change device for cycles and similar vehicles, actuated manually by pulses, using an operating member 17 without friction, ensuring traction, always in the same direction, of a cable or intermediate means, whatever the direction of actuation of the member 17, and which controls: - a receiving member 4 consisting of a system movable relative to the frame along at least one axis, actuated unidirectionally, and brought back after each maneuver , in the rest position, by a return means 11, - one or more tilting members called memory 7, pivoting about an axis 24, - one or more intermediate tilting members 9 making it possible to tilt the memory member under the action of the receiving organ; - means 8 for holding in each of the positions of the memory member 7, - chain positioning means, mounted free and provided with adjustable friction systems 22 allowing said chain positioning means to be held outside phases of action of the control systems, associated or not, with self-centering flanges. /P