Transmission for tractor
US7730807B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2007 |
| Grant date | Jun 8, 2010 |
| Priority date | — |
| Expiry date | Jul 26, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19233
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A transmission for a tractor has a forward/reverse transmission unit for selectively changing a rotational direction of power of a first shaft connected with an engine and transmitting the power to a second shaft connected with an axle shaft, a main transmission unit installed between the second shaft and the axle shaft and having a plurality of gears to speed-change the power transmitted from the second shaft in four-speed, and a sub-transmission unit installed between the main transmission unit and the axle shaft and having a plurality of gears to speed-change again the power transmitted from the main transmission unit in four-speed. The transmission realizes forward/reverse 16-speed while having a compact structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.