Patent ID: 6764427
Filing Date: 2004-07-20
Classification: F16H

Abstract:
A toroidal continuously variable transmission, comprising:a plurality of sets of speed change units interposed between the opposed faces of input rotary members and output rotary members, wherein each speed change unit has power transmitting rolling members inclined to vary the torque transmitting portions to those faces and in which the input rotary members at individual speed change units are coupled to a single input member whereas the individual output rotary members are coupled to a single output member; a holding mechanism for holding said input rotary members or said output rotary members rotatably relative to each other; and a wrapping transmission mechanism for coupling said input member and the individual input rotary members individually in a torque transmitting manner or said output member and the individual output rotary members individually in a torque transmitting manner, wherein the said wrapping transmission mechanism includes: a first sprocket made rotatable to rotate integrally with any one of the input rotary members or the output rotary members; a second sprocket made rotatable to rotate integrally with the other of the input rotary members or the output rotary members; a first chain made to run on the first sprocket; a second chain made to run on the second sprocket; and a third sprocket wrapped by said first and second chains and made rotatable to rotate integrally with said input member or output member.