Apparatus and method for changing the track of the wheels of a tractor
US7780197B2 · kind B2 · utility
26Cited by
16References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 2, 2009 |
| Grant date | Aug 24, 2010 |
| Priority date | — |
| Expiry date | Apr 2, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2800/912
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A tractor includes a motor, transmission, drive shaft and rear differential for driving the rear axles mounted on a main tubular frame of a variable configuration. Forwardly extendable telescoping tubular frame members are actuated by respective rams to selectively vary the spacing between the frame and the front wheels. The front and rear lateral telescoping tubes supporting each of the wheels are selectively extendable and retractable to significantly vary the wheel width or track of the front and rear wheels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.