Damper
US11459812B2 · kind B2 · utility
0Cited by
5References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 22, 2019 |
| Grant date | Oct 4, 2022 |
| Priority date | — |
| Expiry date | Dec 21, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F2234/02
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A damper includes a cylinder, a rod including a first engaging portion at a tip end thereof, and a piston formed of an elastic resin material. The piston includes a convex portion provided so as to protrude at a base end portion located on a rod base end side and always in pressure contact with an inner circumference of the cylinder. During damper braking, the first engaging portion of the rod abuts against the other end portion of the piston, and an axial compression force acts on the piston between the first engaging portion and the convex portion in pressure contact with the inner circumference of the cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.