Track adjusting mechanism
US5005920A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 26, 1990 |
| Grant date | Apr 9, 1991 |
| Priority date | — |
| Expiry date | Mar 26, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D55/30
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A track adjusting mechanism establishes the optimum tension in the endless track assembly of a track type vehicle. The track adjusting mechanism is controlled by the vehicle operator from the operator's station. The adjusting mechanism includes a fluid cylinder, a piston movable within the cylinder, and a hydraulic circuit to supply fluid to the cylinder. Fluid leakage from the cylinder is collected and stored in an accumulator. A single fluid line in the hydraulic circuit serves as a high pressure line to the cylinder in a first mode and a low pressure drain line from the cylinder in a second mode. The accumulator is also connected to this single fluid line and a one-way check valve prevents high pressure fluid from entering the accumulator while allowing the low pressure leakage fluid to pass through and reach the low pressure drain line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.