Toroidal-type continuously variable transmission and continuously variable transmission apparatus

A continuously variable transmission apparatus comprising a combination of a toroidal-type continuously variable transmission unit and a planetary-gear-type transmission unit, and further comprising an input shaft connected to a rotary shaft of the toroidal-type continuously variable transmission unit and an output shaft connected to components of the planetary-gear-type transmission unit,

• a toroidal-type continuously variable transmission as the toroidal-type continuously variable transmission unit comprises:
• a casing;
• a rotary shaft rotatably supported in the interior of the casing;
• a pair of outside disks each including an axial-direction one-side surface having an arc-shaped section and rotatably supported on two ends of the rotary shaft so as to be rotated in synchronization with the rotary shaft, the respective axial-direction one-side surfaces being opposed to each other,;
• an inside disk including axial-direction two-side surfaces each having an arc-shaped section and rotatably supported on the periphery of the middle portion of the rotary shaft so as to be rotated with respect to the rotary shaft, the axial-direction two-side surfaces being opposed to the axial-direction one-side surfaces of the two outside disks;
• support members disposed by two or more respectively between the one side axial-direction surface of the inside disk and the axial-direction one-side surface of the outside disk so as to be swung and shifted about pivot shafts disposed at positions twisted with respect to the rotary shaft;
• power rollers each including a peripheral surface formed as a spherical-shaped convex surface, the power rollers respectively being rotatably supported on the support members, the peripheral surfaces of the power rollers being contacted with the axial-direction surface of the inside disk and the axial-direction one-side surface of the outside disk;
• and,
• ball bearings for supporting the inside disk in such a manner that the inside disk is rotated with respect to the casing,
• wherein the planetary-gear-type transmission unit includes switch unit for receiving power from the rotary shaft and the inside disk of the toroidal-type continuously variable transmission unit and also for switching the transmission passage of the power into two systems.