Transmission
USRE32125E · kind E · reissue
Assignee
Inventors
Key dates
| Filing date | Mar 26, 1981 |
| Grant date | Apr 29, 1986 |
| Priority date | — |
| Expiry date | Mar 26, 2001 |
Classification
- Technology area (CPC —)General
Abstract
A change-speed transmission with a shift mechanism which selectively couples a plurality of change gears one at a time to a shaft on which the gears are journalled. The shift mechanism is disposed entirely within the transmission housing and includes a shift key arranged for axial sliding movement in a groove in the shaft. A pair of axially spaced projections at one end of the key project outwardly of the groove to embrace a collar which is journalled on the shaft. The collar is axially shifted on the shaft by a rotary shift fork which engages a circular groove in the collar to selectively position the key axially of the shaft in its several gear-engaging positions. A third radial projection at the other end of the key engages a different gear in each of the several positions thereby drivingly coupling the selected gear to the shaft to provide various forward drive speeds. The end projection of the projection pair which embrace the collar is adapted to engage a reverse gear on the other end of the shaft for providing a single reverse speed. The arrangement and construction of the several gears and the shift key are such that when the key is shifted between adjacent gear-engaging po…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.