| 主权项 |
1. A toroidal continuously variable transmission, comprising:
a rotating shaft; a pair of outside disks, each comprising one side surface in an axial direction of the rotating shaft that has a circular arc-shaped cross section and that faces inward in the axial direction of the rotating shaft, and the outside disks being respectively supported by one end section and another end section of the rotating shaft so as to rotate in synchronization with the rotating shaft; an inside disk comprising side surfaces on both sides in the axial direction of the rotating shaft, each surface having a circular arc-shaped cross section that faces outward in the axial direction of the rotating shaft, and the inside disk being supported around a middle section in the axial direction of the rotating shaft with each of the side surfaces on both sides in the axial direction facing the one side surfaces in the axial direction of the pair of outside disks so as to rotate freely relative to the rotating shaft; plural support members, each comprising a pivot shaft in a skewed position with respect to the rotating shaft, with the plural support members provided 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 disks so as to be able to pivotally displace freely centered around the pivot shaft; plural power rollers supported by the support members so as to roll freely, each comprising a circumferential surface that is a spherical convex surface, with the circumferential surfaces coming in contact with 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 disks; a pressing device provided between the rotating shaft and one of the outside disks of the pair of outside disks that is arranged on one end section of the rotating shaft, and the pressing device pressing the one outside disk toward another outside disk of the pair of outside disks that is arranged on the other end section of the rotating shaft; and a locking member locked in a portion of the other end section in the axial direction of the rotating shaft that protrudes toward the other end side from the other outside disk, and that prevents the other outside disk from displacing in a direction away from the one outside disk; wherein a female-spline section is formed around a middle section in the axial direction of an inner-circumferential surface of the other outside disk, and a disk-side fitting surface section having a circular cross-sectional shape is formed around a portion of the inner-circumferential surface of the other outside disk that is adjacent to the other end side of the female-spline section; a male-spline section is formed around the other end section in the axial direction of an outer-circumferential surface of the rotating shaft, and a shaft-side fitting surface section having a circular cross-sectional shape is formed around a portion of the outer-circumferential surface of the rotating shaft that is adjacent to the other end side of the male-spline section; and the female-spline section and the male-spline section fit with a spline fit, and the disk-side fitting surface section and the shaft-side fitting surface section fit together with an interference fit. |
