Anti-friction pad for a bushed pivot point connection of a main leaf spring and a secondary leaf spring
US5542652A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 22, 1995 |
| Grant date | Aug 6, 1996 |
| Priority date | — |
| Expiry date | Feb 22, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F7/04
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An anti-friction pad for a bushed pivot connection of a main leaf spring and a secondary leaf spring of a spring mounted air spring suspension of a vehicle. The pivot connection includes a bushing, a main leaf spring having an eye receiving the bushing and a secondary leaf spring having an eye receiving the eye of the main leaf spring and the inside surfaces of bushing hanger bracket. The anti-friction pad has an elongated main body portion positioned between and in contact with the main leaf spring and the secondary leaf spring. The anti-friction pad also has side walls which engage the secondary leaf spring. The anti-friction pad has a center post which seats in a socket of the secondary leaf spring. The main body portion of the pad has an outer convex surface which mates with a concave face of the main leaf spring. The anti-friction pad is formed of an ultra high molecular weight polyethylene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.