Toroidal-type continuously variable transmission
US6416439B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2000 |
| Grant date | Jul 9, 2002 |
| Priority date | — |
| Expiry date | Apr 5, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2361/65
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In a toroidal-type continuously variable transmission, a plurality of trunnions is respectively swingable about a pair of mutually concentric pivot shafts through a plurality of radial needle roller bearings respectively supporting the pivot shafts. Each of the radial needle roller bearings includes: an outer race interposed between an outer peripheral surface of the pivot shaft and an inner peripheral surface of the circular hole of the support plate, the outer race having an outer peripheral surface formed in a spherically convex surface; and a plurality of needle rollers respectively disposed on the inside diameter side of the outer race. The outer race is formed with an inwardly facing flange portion on the inner peripheral surface of the end portion thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.