Liftgate platform with latchable retention ramp
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United States of America Patent
Stats
-
Sep 12, 1995
Grant Date -
N/A
app pub date -
May 16, 1994
filing date -
May 16, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A lift platform has a retention ramp whose forward edge is pivotally connected to a rear edge of the platform by a hinge that permits inversion of the retention ramp to a stowed position overlying the platform. A latch member is mounted on a lateral edge of the retention ramp in operative alignment with a detent block secured to the rear edge of the platform, the detent block having a center on the axis of the hinge. The latch member is pivotally mounted and torsionally biased to press the nose portion into engagement with the periphery of the detent block, the latter having detent notches angularly spaced apart relative to its center for defining intermediate and stowed positions of the retention ramp. During movement of the retention ramp between extended and intermediate positions the nose of the latch engages a convex portion of the detent block periphery of a radius to depress the latch against the biasing force of the torsion spring. The detent notches have surface orientations for unidirectionally latching the retention ramp against movement out of the stowed and intermediate positions towards the extended position.
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