Patent ID: 6123641
Filing Date: 2000-09-26
Classification: F16H

Abstract:
A vehicle mounted toroidal continuously variable transmission comprising:a power roller disposed between an input disk and an output disk, said disks being opposed and rotatable;a trunnion supporting said power roller tough an eccentric shaft;a control device driving said trunnion in an axial direction by an actuator to rotate said trunnion around the axis of a trunnion shaft to vary an angle of gyration of said power roller so as to vary a speed ratio;a cam member having a cam face displacing in response to rotation of said trunnion shaft;a cam follower having a contact face that partly contacts said cam member wherein all periheral edges of the contact face are formed as arc surfaces; anda feedback mechanism performing feedback of motion of said cam follower to said control device controlling a displacement in an axial direction of said trunnion.