Front fork
US7441638B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 1, 2005 |
| Grant date | Oct 28, 2008 |
| Priority date | — |
| Expiry date | Jul 4, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F9/46
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A front fork, which is interposed between a vehicle body and an axle to restrain a change in vehicle attitude, comprises a fork body (101) including a reservoir chamber (106) partially filled with gas and performing an expansion and contraction operation, a reservoir tank (102) partially filled with gas and communicating with the reservoir chamber (106) through a flow path (103) in which hydraulic oil flows, an on-off valve (35) switching between opening and closing of the flow path (103), and a relief valve (40) accepting flow of hydraulic oil from the reservoir chamber (106) toward the reservoir tank (102) when a pressure of the reservoir chamber (106) reaches a predetermined pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.