Pneumatic lordosis support
US7857387B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 31, 2005 |
| Grant date | Dec 28, 2010 |
| Priority date | — |
| Expiry date | May 31, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60N2/665
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A pneumatic lordosis support (1) consists of a cushion (3), which is integrated into the backrest (2) of a seat. Laterally of a vertical center line (7), the cushion encompasses horizontal connections (8) between a front side and a rear side of the cushion (3). The cushion (3) is composed of an air-tight flexible membrane. In the region of the vertical center line (7), the connections (8) encompass breaks. Vertically offset to the connections (8), the cushion (3) encompasses further central horizontal connections (10), which extend substantially across the region of the breaks in the connection (8). In the region where connections (8) and central connections (10) are located close to one another, reduced radii of the membrane lead to the occurrence of less stress than in the remaining cushions (3) and allow the spine of a user to dip into the cushion (3) more softly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.