Front fork
US9279470B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 22, 2014 |
| Grant date | Mar 8, 2016 |
| Priority date | — |
| Expiry date | Aug 22, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62K2025/048
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A front fork includes an inner cylinder disposed inside an inner tube, a piston rod moving with an outer tube, a piston attached to a lower end portion of the piston rod and sectioning an oil chamber in the inner cylinder into a lower oil chamber and an upper oil chamber and a damping force generating portion at an outside of the inner tube having a first damping force generating portion generating resistance in working oil flowing in one direction in an external flow path, a second damping force generating portion disposed in series with the first damping force generating portion in the external flow path to generate resistance in working oil flowing in the other direction, and a pressurization portion having an oil reservoir chamber communicated to an intermediate oil chamber and pressurizing working oil in the intermediate oil chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.