Air lumbar support device
US4634179A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 24, 1985 |
| Grant date | Jan 6, 1987 |
| Priority date | — |
| Expiry date | Dec 24, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S297/03
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An air lumbar support device utilized in an automobile seat for adjusting the curvature of a seat back by selectively regulating air pressures of a plurality of air bags accommodated in the seat back. The support device includes a pressure sensor detecting the air pressures of the seat bags, an input circuit supplying an electric signal from the pressure sensor to a control circuit, an output circuit receiving electric signal from the control circuit and causing an air control valve to actuate to thereby control the air pressures of the air bags, and a memory circuit memorizing and reading the electric signal supplied from the input circuit to the control circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.