Head rest for a vehicle seat
US6126238A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 9, 1999 |
| Grant date | Oct 3, 2000 |
| Priority date | — |
| Expiry date | Apr 9, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60N2/815
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A head rest (35) for a vehicle seat is vertically adjustable relative to a back rest (36) of the vehicle seat. The head rest (35) is fixed on supporting rods (37, 38) which are longitudinally displaceable in a fixed reception (40) arranged in the back rest (36). A clamping element (10) locks the head rest (35) in a defined position relative to the reception. According to the invention, the supporting rods (37 and 38) are prevented from being pushed inwards during an accident by the fact that the locking element (10) is configured as an overrunning clutch(22, 16, 26) acting in a linear direction of movement which, in a locked position, prevents at least one (38) of the supporting rods from being pushed into the reception (40), and the locking element can be locked and unlocked by an actuating element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.