Patent ID: 6634253
Filing Date: 2003-10-21
Classification: B62M,Y10T

Abstract:
In a bicycle having a frame, a chain, multiple gears upon which the chain can ride, a gear shifter for selecting one of the multiple gears, a first length of cable moved by the gear shifter, a derailleur for physically directing the chain onto a gear selected by the shifter, and a second length of cable that leads to the derailleur, a cable displacement compensation device, comprising:a pivot joint attached to the frame of the bicycle; a linkage element coupled to said pivot joint, said linkage element being free to rotate about said pivot joint; wherein the first length of cable is coupled to said linkage element at a first point a first distance from said pivot joint; and wherein the second length of cable is coupled to said linkage element at a second point a second distance from said pivot point.