Patent ID: 6071209
Filing Date: 2000-06-06
Classification: F16H

Abstract:
A roller control system, for a continuously-variable-ratio transmission, comprising a pair of spaced apart discs defining a torus mid-plane therebetween; the roller control system further including a roller being located between the pair of spaced apart discs, the roller having a tilt angle, a roller rotational plane, roller bearings to facilitate rotation of the roller, and the roller bearing being located at a roller center; and an operating mechanism for controlling a position of the center of the roller along the torus mid-plane and for controlling the tilt angle of the roller;wherein said operating mechanism has:a first mechanical link operable to control said position of the roller center along said torus mid-plane but incapable of controlling said tilt angle of the roller; anda second mechanical link connected to said roller bearings and operable to control the tilt angle of the roller, and the second mechanical link lies substantially parallel to the plane of the roller and is constrained to pass through a predetermined single point fixed relative to a structure of the transmission.