Structure of a running system in a work vehicle
US4382604A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 19, 1981 |
| Grant date | May 10, 1983 |
| Priority date | — |
| Expiry date | Feb 19, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2300/09
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A structure for a running system, in a work vehicle, has right and left running wheels, hydraulic cylinders extensible and retractable in opposition to each other in response to axle-tilting displacement of the wheels as they rise and lower in turn in opposition to each other, a conduit connecting the cylinders with each other with an on-off valve interposed therein to be arbitrarily maneuverable thus to enable the lock up of both cylinders, and, a supply conduit made connectable to the cylinder-connecting conduit. There are provided valves in order to permit oil to be supplied only when inner pressure within this cylinder-connecting conduit has dropped to show negative pressure below a preset threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.