Shock absorber
US9776468B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2014 |
| Grant date | Oct 3, 2017 |
| Priority date | — |
| Expiry date | Sep 19, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F9/5126
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A shock absorber includes at least one of an expansion-side sensitive unit and a contraction-side sensitive unit. The expansion-side sensitive unit has an expansion-side actuating chamber that communicates with an expansion-side chamber and a contraction-side chamber, an expansion-side free piston that partitions the expansion-side actuating chamber into a first expansion-side pressure chamber and a second expansion-side pressure chamber, and an expansion-side spring element configured to bias the expansion-side free piston to compress the first expansion-side pressure chamber. The contraction-side sensitive unit has a contraction-side actuating chamber that communicates with a contraction-side chamber and a reservoir, a contraction-side free piston that partitions the contraction-side actuating chamber into a first contraction-side pressure chamber and a second contraction-side pressure chamber, and a contraction-side spring element configured to bias the contraction-side free piston to compress the first contraction-side pressure chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.