Headrest for a vehicle seat
US11427118B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 27, 2014 |
| Grant date | Aug 30, 2022 |
| Priority date | — |
| Expiry date | Aug 27, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF42B3/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle seat headrest has a first sub-piece facing a seat occupant head, a second sub-piece and an energy storage device with a trigger actuator arranged between the first sub-piece and the second sub-piece. The first sub-piece is moveable relative to the second sub-piece out of a use position into a safety position along a movement direction towards the a seat occupant head as a result of an accident under the effect of a discharge of the energy storage device, which is actuated by the trigger actuator. The headrest is configured such that the volume of an expansion area is increased while the first sub-piece is moved relative to the second sub-piece as a result of an accident and by the effect of the discharge of the energy storage device. The headrest has a sealing device between the first sub-piece and the second sub-piece to delimit the expansion area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.