Continuously variable traction roller transmission
US4960004A · kind A · utility
16Cited by
5References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 1989 |
| Grant date | Oct 2, 1990 |
| Priority date | — |
| Expiry date | May 16, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2107
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In a continuously variable traction roller transmission, a combination of a precess cam and a generally L-shaped link is used for converting a rotational movement of a traction roller supporting member to an axial movement of a spool of a speed change control valve. The cam surface of the precess cam is convexed to achieve an optimum characteristic of speed change ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.