Independent paddle lift axle suspension system
US6883813B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 26, 2003 |
| Grant date | Apr 26, 2005 |
| Priority date | — |
| Expiry date | Jun 22, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2204/4702
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An auxiliary lift axle suspension of the parallelogram type is constructed for heavy duty operation by providing longitudinal control arms at the corners of a parallelogram configuration extending between the axle connecting member and the frame hanger bracket. A lift bellows is then located between two opposing rigidity providing, U-shaped members (called paddles or stabilizer members) located within the three dimensional parallelogram space, wherein the legs of one U-shaped member are connected to the axle connecting member and the legs of the opposing U-shaped member are connected to the hanger bracket, such that the lift bellows is located between the bases of the opposing paddles and expands bi-directionally to lift the wheels of the suspension from the road surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.