Rolling-lobe air spring
US5954316A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 4, 1997 |
| Grant date | Sep 21, 1999 |
| Priority date | — |
| Expiry date | Nov 4, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2204/12
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The invention is directed to an air spring (2) having a flexible member wherein a roll-off piston (8) is connected to a flexible member (6) of the air spring (2) via a threaded fastener assembly. The piston volume (8a) is used to provide a softer spring constant in that the piston volume (8a) and the volume (6a) of the flexible member (6) communicate with each other. The sealing ring configured at the lower edge (6c) of the flexible member (6) is clamped tightly between a clamping plate (12) and the sealing surface (8c) of the piston by utilizing a threaded spindle (10) which is sufficiently long. The clamping plate (12) is provided with holes (14). The clamping plate (12) can be configured as a deep-drawn pot provided with several bores (14).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.