Devices for locking the adjustable components of vehicle seats in position in the event of a shock
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United States of America Patent
Stats
-
Sep 17, 1996
Grant Date -
N/A
app pub date -
Jul 6, 1993
filing date -
Jul 3, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A device for operating, in the event of a shock, to lock the adjustable seat-raising mechanism (5) interposed between the base (1, 2) and the seat proper (3, 4) of a vehicle seat, the device comprising a scissors linkage constituted by two links (6, 7) pivotally mounted to each other about an axis A, the first link (6) also being pivotally mounted about an axis B linked to the base, and the second link (7) also being pivotally mounted about an axis C located behind the first axis and linked to the seat proper, a circular sector (8) having a rough cylindrical surface (9) is centered on the axis A and is secured to the first link (6), a flyweight (10) is suspended from the axis C and includes a rough cylindrical bearing surface (11) that is eccentric and that is suitable for co-operating with a wedging effect with the cylindrical surface of the sector, and a spring (12) is interposed between the seat proper and the flyweight and urges the flyweight rearwards so long as it remains in its rest position, and forwards once it is in its locking position.
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