Patent ID: 6231473
Filing Date: 2001-05-15
Classification: F16H

Abstract:
A toroidal continuously variable transmission comprising:an input disk;an output disk;a power roller gripped between said input disk and said output disk;a loading mechanism which generates a thrust load according to an input torque input into said transmission, and applies said thrust load to said disks;an elastic member which comes in contact with a specific disk of said disks and applies a preload to said disks; anda limiting member which limits a displacement of said specific disk in a compressing direction of said elastic member;wherein said elastic member comprises a first belleville spring and a second belleville spring which come in contact on their outer circumferences and are disposed so as to leave a clearance between their inner circumferences and are disposed so as to leave a clearance between their inner circumferences, and said limiting member limits the displacement of said specific disk so that said clearance is always greater than a predetermined value, andwherein said clearance of said belleville springs is larger than a clearance between said limiting member and said specific disk.