Patent ID: 8092325
Filing Date: 2012-01-10
Classification: F16H

Abstract:
1. A continuously variable belt transmission for a vehicle, comprising: a member that forms a first hydraulic chamber where a pressing force acting on a movable sheave is generated; and a circular member that defines a wall of a second hydraulic chamber such that a hydraulic pressure is generated in the second hydraulic chamber to cancel a centrifugal hydraulic pressure generated in the first hydraulic chamber, wherein said circular member is formed of an elastic member that urges said movable sheave in a direction in order to generate a belt pressing force at a position of the movable sheave in a predetermined gear ratio, and said movable sheave is a secondary side movable sheave and said elastic member is adapted to produce an urging force to the movable sheave in a direction in order to generate the belt pressing force at a position of the movable sheave in a gear ratio greater than at least a predetermined gear ratio.