Vehicle seat lock mechanism
US5865506A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 15, 1997 |
| Grant date | Feb 2, 1999 |
| Priority date | — |
| Expiry date | Dec 15, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60N2/233
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An automotive vehicle includes a lock mechanism for locking a seat slide unit on which a vehicle seat is mounted or a seat reclining unit mounted on the vehicle seat. A screw rotatably mounted on an upper rail is in mesh with a nut secured to a lower rail or mounted on a seat back frame. Each of the screw and the nut has a lead angle greater than an angle of friction thereof so that the screw can rotate in response to a load applied to the vehicle seat or a seat back, thus enabling adjustment of the position of the vehicle seat in a direction longitudinally of the vehicle body or that of the angle of inclination of the seat back. If deceleration or acceleration of a value not smaller than a predetermined value is applied to the vehicle seat, the screw is urgently locked to thereby maintain the current position of the vehicle seat or the current angle of inclination of the seat back.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.