Head rest for vehicle seat
US6364415B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2000 |
| Grant date | Apr 2, 2002 |
| Priority date | — |
| Expiry date | Jul 24, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60N2/818
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A head rest device for a vehicle seat includes a stay member supporting a head rest and attached to the upper portion of the seat back of the vehicle seat. The stay member includes a pair of stay shafts extending downwardly from the head rest. The head rest device further includes a position adjusting mechanism for adjusting the position of the head rest relative to the seat back. The position adjusting mechanism includes a drive motor, a drive shaft operatively connected to the drive motor and extending in the vertical direction of the vehicle, a vertically movable nut member in engagement with the drive shaft, a movable member secured to the nut member and vertically movable with the nut member, a guide member for guiding the vertical movement of the movable member, and a stopper member connecting the movable member with the lower end of the stay shafts of the stay member for restricting the position of the movable member. The drive shaft and the guide member are disposed in the seat back in parallel with each other, extend vertically, and are separately arranged in spaced apart relation with respect to the lateral direction of the seat back of the vehicle seat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.