Single rail top cover assembly
US6082215A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 28, 1998 |
| Grant date | Jul 4, 2000 |
| Priority date | — |
| Expiry date | Aug 28, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20183
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A top cover assembly for a manual transmission having a plurality of gears and a reverse gear is provided. The top cover assembly comprises a shift rail assembly, a reverse biasing assembly, and a shift housing assembly. The shift rail assembly includes a sensing device that interacts with a contoured surface for producing a first electronic signal in response to the shift rail being in a neutral position for range shifting. Another contoured surface acts to center the shift rail and an operatively connected shift lever. For reverse biasing, the shift lever has a first lower shift force when moved to shift at least one of the forward gears. An interlock supported by the shift rail and shift sleeve rotates with the shift rail and acts to lock out other gears during a gear shift. In one aspect of the invention, the interlock is also used for reverse biasing. A detent engages the interlock for creating a higher shift force than the first lower shift force when the shift lever is moved to shift the reverse gear. Additionally, a shift housing assembly comprises a shift housing having a channel and a shift fork for engaging the plurality of gears. A shift bar interconnects the shift leve…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.