Head rest control device and active head rest
US7618091B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 28, 2005 |
| Grant date | Nov 17, 2009 |
| Priority date | — |
| Expiry date | Jan 28, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60N2220/20
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
It is an object of this invention to provide an active headrest which will not over-push the head of a passenger. For this purpose, the invention provides a headrest controller for moving a part (20A) or whole of a headrest (20) of a vehicle seat toward a head of the passenger to reduce the distance between the headrest (20) and the head in the horizontal direction by predicting or detecting a crash to the rear of the vehicle, including a head position detecting unit (11) for detecting a predetermined state of approach or state of contact of the headrest (20) to or with the head during the movement of the headrest (20) and a control circuit for stopping the headrest based on a detection signal from the head position detecting unit (11).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.