CONICAL-FRICTION-WHEEL-AND-RING-TYPE CONTINUOUSLY-VARIABLE TRANSMISSION DEVICE

摘要

Provided is a conical-friction-wheel-and-ring-type continuously-variable transmission device that allows smooth speed-changing operations while reducing energy losses due to oil churning during speed-changing operations. By the rotation of a feed screw shaft (61), a moving member (63) is guided by a guide rail (62) and is moved in the axial direction thereof, and thus, a ring (25) is moved in a tilted manner and the position at which the ring contacts two friction wheels (22, 23) is changed, thereby resulting in a speed change. The feed screw shaft (61) and a nut part (65) are positioned above the oil level (65a), and the guide rail (62) and a sliding part (66) are immersed in an oil pool (59).