Derailer mechanism

Details Derailer mechanism Derailer mechanism

B - Operations, Transporting

62

M

74/32

B62M 25/00 (2006.01) B62M 9/12 (2006.01)

Patent

CA 1230759

TITLE: DERAILER MECHANISM ABSTRACT A particularly satisfactory derailer type bicycle can be constructed using front and rear derailer mechanisms in connection with the pedals and the rear wheel of the bicycle, respectively, and a control cable which operates these two mechanisms in synchronism with one another. This control cable is used so as to rotate a cam of the front derailer mechanism in order to cause shifting of the bicycle chain between the gears in this mechanism. Similarly the cable is used to concurrently rotate a cam of the rear mechanism so as to cause shifting of the bicycle chain between the gears of this mechanism. The cam as the rear derailer mechanism formed to facilitate the shifting action achieved by causing the chain of the bicycle to be moved slightly past and then back into a position corresponding to a gear of the rear mechanism.

471549

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