Constant velocity ratio universal joint of the tripode type
US5645487A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1994 |
| Grant date | Jul 8, 1997 |
| Priority date | — |
| Expiry date | Dec 22, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S464/905
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A constant velocity ratio universal joint of the tripode type includes an outer joint member with three tracks extending lengthwise of the joint member, and an inner joint member having three arms extending outwardly into the tracks of the outer joint member. Each arm carries a respective roller having an external surface which engages opposed side portions of the associated track. Each roller is able to tilt within its associated track and move therealong so that the inner and outer joint members are able to move axially relative to one another and undergo relative articulation. In the invention 1) the tracks in the outer joint member, in respect of their alignment relative to a datum comprising the axis of rotation of the outer joint member, and 2) the arms of the inner joint member, in respect of their alignment relative to a datum comprising a plane perpendicular to the axis of rotation of the inner joint member, at least the tracks in the outer joint member are so inclined relative to the respective datum as substantially to eliminate the third order transmission error from the joint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.