Shock absorber for bumpers
US4029304A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 1975 |
| Grant date | Jun 14, 1977 |
| Priority date | — |
| Expiry date | May 30, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R19/32
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A shock absorber for bumpers comprising a fixed bottomed outer cylinder and an inner cylinder which is slidably fitted in said outer cylinder and to the front end of which a bumper is to be fitted, said outer cylinder being provided with a stopper to prevent the inner cylinder from escaping and said inner cylinder being slidably fitted with a piston having damping force generating holes, filled with a compressible fluid and engaged with said stopper, said fluid being compressed by pulling a piston rod connected with the piston in the end part through the base end of the inner cylinder so as to collide with the bottom surface of the outer cylinder to press the inner cylinder into the outer cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.