Damping force generating device for an oil damper
US4515253A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 7, 1983 |
| Grant date | May 7, 1985 |
| Priority date | — |
| Expiry date | Apr 7, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G15/00
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A damping force generating device for an oil damper including a hydraulic cylinder, a sub-tank having in the interior thereof an oil chamber and a gas chamber, and a first oil passage which hydraulically connects the hydraulic cylinder to the oil chamber. The damping force generating device comprises a valve seat having second and third oil passages for passing therethrough an operating oil when it is flowing in first and second directions of the first oil passage, respectively; a first valve for opening and closing the second oil passage; and a second valve for opening and closing the third oil passage. The first or second valve comprises a valve body, a mechanism for normally urging the valve body in a closing direction, and an urging force adjusting arrangement for adjusting the urging force of the urging mechanism from the exterior. The damping force generating device is simplified in structure and provides for a reduction in size of the oil damper as well as facilitated adjustment of the damping force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.