Tripod type constant velocity universal joint
US6837794B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 1999 |
| Grant date | Jan 4, 2005 |
| Priority date | — |
| Expiry date | May 26, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D3/2055
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A tripod type constant velocity universal joint which includes an outer member having three axially extending track grooves formed in an inner circumferential surface thereof, each of the track grooves having roller guide surfaces on a pair of opposing side walls thereof, a tripod member having three radially projecting trunnions, and rollers rotatably carried on the trunnions, respectively, through a series of cylindrical rolling elements, the rollers being accommodated in the track grooves, respectively, so that the rollers are movable axially of the outer member with each said roller rolling along one of the opposing roller guide surfaces. The cylindrical rolling elements roll directly on an outer circumferential surface of the trunnion. Each said roller has an annular radial projection at each axial end thereof. The roller with the annular projections and a series of the rolling elements retained along an inner periphery of said roller form an independent assembly capable of preventing the rolling elements from dispersing prior to mounting the assembly on the trunnion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.