Snap-on bumper for air spring
US5201500A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 1991 |
| Grant date | Apr 13, 1993 |
| Priority date | — |
| Expiry date | Feb 26, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2206/424
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An air spring has pair of spaced end members for mounting the spring at spaced locations on a structure. A flexible sleeve of elastomeric material is sealingly engaged with the end members and forms a pressurized fluid chamber therebetween. A post is mounted on one of the end members and extends into the fluid chamber. A shock absorbing bumper formed of a high strength plastic is snap-fitted on an enlarged top of the post. A plurality of circumferentially arranged flexible fingers define an opening in a base of the bumper, and are snap-fitted over the enlarged top of the post which extends into the opening and seat into an annular undercut formed in the post beneath the enlarged top. The snap-fitted plastic bumper replaces the heretofore used elastomeric bumper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.