Pneumatic four way lumbar
US10358065B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2016 |
| Grant date | Jul 23, 2019 |
| Priority date | — |
| Expiry date | Jul 14, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60N2/914
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A lumbar support system for a seat backrest, the lumbar support system includes a carrier having a first end and a second end opposite the first end. The carrier is movable with respect to the seat backrest in a first direction and in a second direction opposite the first direction. The lumbar support system further includes a first bladder coupled to the first end of the carrier, a second bladder coupled to the second end of the carrier, and a third bladder coupled to the carrier. The third bladder has a contact surface and is configured to move with the carrier. The first bladder is inflatable to move the carrier in the first direction, and the second bladder is inflatable to move the carrier in the second direction. The third bladder is inflatable such that the contact surface is extendable in a third direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.