Vibration dampening suspension device for the cab of a truck vehicle
US5109939A · kind A · utility
Inventors
Key dates
| Filing date | Oct 31, 1990 |
| Grant date | May 5, 1992 |
| Priority date | — |
| Expiry date | Oct 31, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/32361
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An improved vibration dampening and shock absorber suspension device for the cab of a truck vehicle is set forth having a base member adapted for mounting to the truck frame and an impact plate adapted for attachment to the truck cab where the impact plate has a lateral dimension which is less than the lateral distance between the side beams of the truck frame. Interposed between the base member and the impact plate is a pair of air springs which are maintained at a constant height by a height control valve. A pair of hydraulic shock absorbers are pivotally connected to both the impact plate and base member where the central axis of the shock absorbers form the opposite sides of a trapezoid. In another embodiment of the invention a suspension device is set forth having a base member adapted for attachment to a support body and a pair of air springs intermediate the base member and an impact plate. The displacement axis of the air springs are oppositely inclined to the vertical axis of the base member forming the opposite sides of a trapezoid. A hydraulic shock absorber is pivotally connected to the impact plate and base member such that the inclination of the central axis of the sh…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.