Patent ID: 6106431
Filing Date: 2000-08-22
Classification: F16H

Abstract:
A toroidal continuously variable transmission comprising:a transmission casing,first and second link supporting members,a pair of coaxial input and output disks having toroidal conical surfaces facing each other,a pair of trunnions arranged in a plane perpendicular to a rotation axis of said input and output disks, and each trunnion being displaceable along and around an axis,a power roller rotatable supported by said trunnion about an eccentric axis of said trunnion, said power roller being gripped between said input and output disks,actuators for driving said pair of trunnions in mutually opposite axial directions,a first link connected to one end of each of said trunnions, the center part of said first link being pivotally supported about said first link supporting member,a second link connected to the other end of each of said trunnions, the center part of said second link being pivotally supported about said second link supporting member, andan adjusting means for permitting the displacement of one of said first and second link supporting members against said transmission casing within predetermined limits so as to balance the thrust forces acting on said power rollers,wherein said adjusting means comprises all oblong hole for restricting the displacement of said one link supporting member within said predetermined limits in an axial direction of the respective link, and further including a knock pin provided in said transmission casing and a tightening means for selectively fixing said one link supporting member to said transmission casing, said knock pin passing through said oblong hole.