Operating apparatus for hydrostatic continuously variable speed-change device for work vehicle
US7854182B2 · kind B2 · utility
2Cited by
13References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2007 |
| Grant date | Dec 21, 2010 |
| Priority date | — |
| Expiry date | Dec 29, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19163
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A work vehicle includes a hydrostatic continuously variable speed-change device, a gear type multiple-stage speed-change device disposed downstream of the hydrostatic continuously variable speed-change device with respect to a direction in which power is transmitted, first and second oil passages, a bypass oil passage communicating the first and second oil passages with each other, a valve mechanism for opening and closing the bypass oil passage, and a manual operating member provided in a driving section for opening and closing the valve mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.