Patent ID: 7603777
Filing Date: 2009-10-20
Classification: B26B,F16H

Abstract:
1. A stepless speed changer comprising a rotation input disk and a rotation output disk, and a plurality of power rollers provided between ring-shaped concave surfaces formed respectively in opposing surfaces of said input and output disks, said opposing surfaces varying a speed-change ratio by varying inclination of turning surfaces of said power rollers within a plane that includes a disk center shaft of said disks; said stepless speed changer further comprising: an adjustment belt that encloses said movable ring, in which said adjustment belt being held by a frame body so as to make a reciprocal motion by prescribed amounts in a direction of turning thereof, and said adjustment belt moving said movable ring in parallel with the disk center shaft by said reciprocal motion thereof; and wherein inclination of all of said power roller supporting shafts is varied by movement of said movable ring in a direction of the disk center shaft caused by the reciprocal motion of said adjustment belt.