Seat backrest having an adjustable lumbar support
US3948558A · kind A · utility
89Cited by
1References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 1975 |
| Grant date | Apr 6, 1976 |
| Priority date | — |
| Expiry date | Mar 31, 1995 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C7/462
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A seat backrest having a contourable upholstered portion supported by a rigid frame includes means to impart a curvature to the upholstered portion to produce a desired supporting contour in the lumbar area of the seat's occupant. The contour-producing means includes a lumbar pad, a flexible member connecting the lumbar pad to the frame, and means operable from the side of the backrest for moving and holding the connecting member in a plurality of positions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.