Dual fork single shift rail assembly
US8627739B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2009 |
| Grant date | Jan 14, 2014 |
| Priority date | — |
| Expiry date | Oct 26, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20177
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A multiple shift fork, single shift rail assembly reduces weight and complexity in manual and dual clutch transmissions. In a first embodiment, a stationary shift rail includes pluralities of detenting recesses and cooperating detent assemblies are mounted on the shift forks. Associated actuators translate the shift forks and synchronizer clutches. In a second embodiment, the detenting recesses reside on the outside surface of the shift forks and the detent assemblies are mounted in the transmission housing. In a third embodiment, one shift fork is slidably mounted on the shift rail and includes an external detent assembly. The shift rail itself translates and includes detenting recesses and a second shift fork connected thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.