Steerable rear dual axle system for large trucks
US5088570A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 4, 1991 |
| Grant date | Feb 18, 1992 |
| Priority date | — |
| Expiry date | Feb 4, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D13/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A steerable dual rear axle system for large trucks having a frame with steerable front wheels secured to the frame, a leading rear axle and a trailing rear axle spaced therefrom, a draft arm pivotally affixed to the leading rear axle and to the frame in the direction toward the frame front end, a structural salient having a forward end affixed to the leading rear axle and a rearward end pivotally attached at a point of pivotation to the trailing rear axle, spring support between the salient and the frame to transfer weight from the frame to the leading and trailing rear axles, and a steerage system for pivoting the trailing rear axle about a vertical axis through the point of pivotation with the salient member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.