Multi-axle vehicle with two hydrostatic transmissions for driving-steering
US6336513B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 1999 |
| Grant date | Jan 8, 2002 |
| Priority date | — |
| Expiry date | Aug 11, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D11/24
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A running vehicle comprises a steering operation tool, a pair of running-driving axles, a pair of running wheels drivingly connected with the pair of running-driving axles, a first differential unit interposed between the pair of running-driving axles, a first hydrostatic transmission for transmitting a driving force to the first differential unit, a pair of steering output shafts, a second differential unit interposed between the pair of steering output shafts, a second hydrostatic transmission for transmitting a driving force to the second differential unit. The second hydrostatic transmission drivingly interlocks with the steering operation tool so that the output speed and direction of the second hydraulic transmission is changed by manipulation of the steering operation tool. A first drive train is interposed between one of the steering output shafts and one of the running-driving axles, and a second drive train is interposed between the other steering output shaft and the other running-driving axle for transmitting the rotating effort to the other running-driving axle in the opposite direction to the first drive train. To improve the running efficiency on a rough road or soft…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.