Patent ID: 9695914
Date: 2017-07-04
CPC Classifications: F16H

Claim:
1. A toroidal continuously variable transmission, comprising: a casing; a rotating shaft rotatably supported inside the casing; a pair of outside disks supported by both end sections of the rotating shaft so that one side surfaces thereof respectively having an arc shaped cross section, face each other, to rotate in synchronization with the rotating shaft; an inside disk supported around the middle section of the rotating shaft so that both side surfaces in the axial direction thereof respectively having an arc shaped cross section, face the one side surfaces in the axial direction of the pair of outside disks, to rotate freely with respect to the rotating shaft; support members comprising rolling shafts provided on both end sections in skewed positions with respect to the rotating shaft, with plural support members being provided in the axial direction between the both side surfaces in the axial direction of the inside disk and the one side surfaces in the axial direction of the pair of outside disk so as to be able to oscillating move around the center axes of the rolling shafts; a pair of support plates supporting the rolling shafts; power rollers rotatably supported by the support members, and so that the circumferential surfaces thereof, which are spherical convex surfaces, come in contact with the both sides side surfaces in the axial direction of the inside disk and the one side surfaces in the axial direction of the pair of outside disks; plural actuators for causing the support members to displace in the axial direction of the rolling shafts; an actuator body housing the main-unit sections of the actuators; and a pair of support columns respectively comprising: a support-ring section having a circular through hole through which the rotating shaft is inserted, and supporting the end sections in the axial direction of the inside disk; and a pair of support-post sections concentrically provided in portions on both sides in the radial direction of the through holes of the support-ring section, and supporting the pair of support plates, the support columns arranged between the both side surfaces in the axial direction of the inside disk and the one side surface in the axial direction of the outside disks in the state that the rotating shaft is inserted through the through holes in the support-ring sections; and one end sections of the pair of support columns supported with respect to the actuator body by installation members arranged in the axial direction of the pair of outside disks and the inside disk, and the other end sections supported with respect to the casing or a member fastened to the casing by an installation members arranged in the axial direction of the pair of outside disks and the inside disk.