Shock absorber
US11760147B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 1, 2020 |
| Grant date | Sep 19, 2023 |
| Priority date | — |
| Expiry date | Mar 7, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F2230/30
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A shock absorber includes an outer tube, an inner tube fitted to the outer tube so as to be able to move forward and backward, a cylinder provided inside the outer tube and extending inside the inner tube, a rod extending from an end portion of the inner tube exposed from the outer tube to an inside of the cylinder, and a piston which is provided on the rod and divides the inside of the cylinder to form a gas chamber. On an outer peripheral surface of the piston, a first lubricating member, a first seal member, and a second seal member are provided in this order from a side closest to the gas chamber to a side away from the gas chamber. The members are in sliding contact with an inner peripheral surface of the cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.