Lumbar support
US7621596B2 · kind B2 · utility
4Cited by
13References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 11, 2007 |
| Grant date | Nov 24, 2009 |
| Priority date | — |
| Expiry date | Jan 11, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60N2/665
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The invention relates to a lumbar support comprising a plurality of pneumatically operated chambers (11-14) for adjusting the curvature of a seat back, wherein the lumbar support comprises two outer chambers (11, 12) and two central chambers (13, 14) in the longitudinal direction of the seat back, wherein the two central chambers (13, 14) are arranged over one another perpendicularly to the longitudinal direction of the seat back between the two outer chambers, wherein each outer chamber has an air connection to one of the two central chambers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.