Continuously variable transmission for motor vehicles

摘要

To provide a continuously variable transmission for motor vehicles which transmits power with a speed change from a driving member to a driven member. In the continuously variable transmission, power transmission is effected by moving a carrier which supports a shifting rotating member in frictional contact with the driving member and the driven member. No other special mechanism other than the continuously variable transmission is needed to push to move the motor vehicle with a small force. At least either one of the driving member and the driven member is driven by a power disconnecting means to move away from the other member along the axis of a transmission shaft, thereby releasing at least one of the driving member and the driven member from frictional contact with the first and second friction transfer surfaces.