Patent ID: 6171210
Filing Date: 2001-01-09
Classification: F16H

Abstract:
A toroidal continuous variable transmission system to be used as a transmission of an automobile comprising:an input shaft rotatably actuated by means of a drive source;an output shaft for acquiring power stemming from rotation of the input shaft;a variator which is interposed between said input and output shafts, is disposed on the drive source side, and includes,a pair of input disks which rotate on the basis of rotation of said input shaft,a pair of output disks which rotate synchronously with each other that are provided in a coaxial relationship with said input disks, andpower rollers which are provided between the input and output disks while remaining in contact with the disks and which rotate at an angle;a planetary gear mechanism which is interposed between said input and output shafts is disposed coaxially with said drive source and said variator, and includes,a sun gear,a ring gear provided around said sun gear,a plurality of planetary gears which are provided between said sun gear and said ring gear so as to be rotatable, andcarriers supporting said planetary gears,a pressing mechanism which presses one of said input disks and said output disks against the other by way of said power rollers;a first power transmission mechanism which transmits said rotation of said output disks to said planetary gear mechanism; anda second power transmission mechanism which transmits the rotation of said input shaft to said planetary gear mechanism,so that said first power transmission mechanism circulates the power of said planetary gear mechanism through said variator, and said second power transmission mechanism transmits the rotation of said input shaft to the planetary gear mechanism by bypassing said variator.