Vehicle seat and support assembly therefor
US3954245A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 3, 1975 |
| Grant date | May 4, 1976 |
| Priority date | — |
| Expiry date | Mar 3, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60N2/507
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle seat support assembly including a fluid spring that supports an upper seat base on a lower floor base at a vertical height corresponding to the adjusted position of an adjustable control linkage which extends between the seat base and a time delay valve whose operation controls the amount of pressurized fluid within the fluid spring. The control linkage includes an adjustment link pivotally mounted on the seat base for adjusting movement and connected to one end of a connecting link whose other end is connected to an actuating link that controls the valve. The control linkage actuates the valve so that the seat base is positioned at the same vertical height for any adjusted position of the linkage regardless of the seat occupant's weight. The control linkage is adjustable to vary the height at which the seat base is positioned and is prevented from transiently actuating the valve during dynamic vertical movement of the seat base by the time delay operation of the valve. The tilted position of an upright seat back mounted on the seat base is controlled by a recliner mechanism. A pawl of the recliner mechanism has ends that are slidably supported by two spaced support porti…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.