Patent ID: 6086505
Filing Date: 2000-07-11
Classification: F16H

Abstract:
A speed control device of a toroidal type continuously variable transmission, comprising:a pivotal feedback link having at one end thereof a follower member that is slidably put on a work surface of a precess cam actuated by a trunnion of said transmission;a speed control valve having a spool, said spool being moved for feeding a hydraulic actuator of said transmission with a hydraulic pressure to control said trunnion;an electric actuator having an output member;a speed change link to which the other end of said pivotal feedback link, the spool of said speed control valve and the output member of said electric actuator are connected through first, second and third articulated members respectively; anda first biasing member connected with said pivotal feedback link at a position between said first articulated member and said follower member to bias said pivotal feedback link in a direction to press said follower member against the work surface of said precess cam so that the biasing force of said first biasing member does not affect the moment of rotation of said speed change link about said first articulated member.