Damper
US9995361B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 14, 2015 |
| Grant date | Jun 12, 2018 |
| Priority date | — |
| Expiry date | May 14, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F9/065
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A damper includes a cylinder, an annular rod guide, an annular seat, a rod, an annular oil seal, a rebound cushion, and a communication passage. The cylinder houses an action chamber. The rod guide is secured to one side opening of the cylinder. The seat is secured to the rod guide. The rod is inserted through inner peripheral sides of the rod guide and the seat. The oil seal is held to an inner periphery of the rod guide and slidably in contact with an outer peripheral surface of the rod. The rebound cushion bumps against the seat. The communication passage transmits a pressure in the action chamber to the oil seal. An opening on the communication passage on the action chamber side is disposed on an outer peripheral side relative to a part of the seat against which the rebound cushion bumps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.