Load booster wheel assembly
US4165792A · kind A · utility
8Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 9, 1978 |
| Grant date | Aug 28, 1979 |
| Priority date | — |
| Expiry date | Jan 9, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2204/45
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The rear end of the truck frame carries a load boosting wheel assembly. The wheels are mounted on a transverse axle which is supported by a forwardly extending wishbone, the front of which has a ball and socket connection to a depending support bracket. The rear portion of the wishbone is guided for vertical movement between the load carrying position and an elevated position. The wheels are actuated to the downward position by air pressure inside the air bag assembly mounted between the wishbone and the frame. The midsection of the air bag assembly is provided with a rigid annulus which is contained to linear motion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.