Vehicle transmission system and a single lever control device therefor
US4442730A · kind A · utility
21Cited by
18References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 31, 1981 |
| Grant date | Apr 17, 1984 |
| Priority date | — |
| Expiry date | Aug 31, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20201
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A transmission system for a vehicle such as a farm tractor comprises a solenoid-operated reversible multispeed transmission (twelve speeds forward and four reverse); an electronic control circuit for operating solenoids in the transmission to effect shifting; and a single lever control device including a manually operable control lever movable from neutral to forward or reverse positions and between upshift and downshift directions when in each position to operate electric switches which are connected to the electronic control circuit to effect desired shifting of the transmission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.