Steerable dual rear axle system for large vehicles
US5308105A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 1992 |
| Grant date | May 3, 1994 |
| Priority date | — |
| Expiry date | Mar 9, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D7/144
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A steerable dual rear axle system for large vehicles in which the vehicle has a frame, and the axle system includes a forward axle housing, a draft arm having one arm affixed to the forward axle housing and the other pivotally affixed to the vehicle frame, a rearward axle housing spaced from the forward axle housing, an axle extending through both axle housings having wheels and tires thereon, an upper linkage having one end pivotally attached to the upper portion of the forward axle housing and the other end pivotally attached to the upper portion of the rearward axle housing, a lower linkage having one end pivotally attached to the lower portion of the forward axle housing and the other end pivotally attached to the lower portion of the rearward axle housing so that the axle housings are supported in spaced apart relationship with the axle housings being independently free to move in vertical planes, compressible strut members extending between the axle housings and the frame for spring supporting the frame, and a hydraulically actuatable cylinder-piston member extending between the forward and rearward axle housings for steerably pivoting the rearward relative to the forward axl…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.