Air spring
US6543754B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 17, 2001 |
| Grant date | Apr 8, 2003 |
| Priority date | — |
| Expiry date | May 17, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62K2025/044
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Spring characteristics are switched in response to running conditions or use requirements of a bicycle in order to improve riding comfort and vehicle performance. A rod 2 is connected to a piston 3 which slides in a cylinder 1, a piston-side chamber (A) and a rod-side chamber (B) are partitioned in the cylinder 1 by the piston 3 and compressed air fills the two chambers, a passage 4 which connects the two chambers is opened and closed by a switch valve 5, the cylinder 1 is connected to the vehicle wheels and the piston rod 2 is connected to the vehicle body, the piston 3 displaces in response to vibration applied to the vehicle body in order to absorb vibrations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.