Vehicle cab suspension unit
US5957231A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1998 |
| Grant date | Sep 28, 1999 |
| Priority date | — |
| Expiry date | Apr 10, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D33/0608
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle cab suspension unit has a foundation which is secured to an outer rail of the frame of the vehicle and pivotally connects one end of a track arm. The other end of the track arm is supported above the foundation by an air spring, and a cab support yoke is pivotally connected between the ends of the track arm so as to support and secure the cab at a position along the track arm between its ends. Shock absorbers are provided between the foundation and the cab support yoke on both sides of the track arm. A height control valve maintains the height of the suspension unit and elastomeric snubbers on the foundation provide limits to the range of travel of the unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.