Shock absorber
US7219881B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 28, 2004 |
| Grant date | May 22, 2007 |
| Priority date | — |
| Expiry date | May 28, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F2228/06
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A shock absorber (1), in particular for bicycles, has a first cylinder (2a) with a fluid chamber (3a) filled with a transmission or damping medium. An outwardly leading piston rod (6) with piston (5a) for receiving the shocks to be dampened is borne axially displaceable in the first cylinder (2a). A second cylinder (2b) that has a fluid chamber (3b) filled with the transmission or damping medium and an air- or gas-filled gas pressure chamber (4b). The fluid chambers (3a, 3b) of the first and second cylinders (2a, 2b) communicate with one another via a communicating channel (7). At least a third cylinder (3c) [sic] with an air- or gas-filled gas pressure chamber (4c) and a fluid chamber (3c) filled with the transmission or damping medium is provided. The fluid chamber(s) (3c, 3d) of the third and of the additional cylinders (2c, 2d), if any, is/are mechanically linked to the fluid chambers (3a, 3b) of the first and second cylinders (2a, 2b) via a communicating channel (7), and in the region of the communicating channel (7) at least one switch apparatus (11) is provided for blocking or releasing communication between the fluid chamber (3a) of the first cylinder (2a) and one or a plur…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.