Bi-directional inertial latch
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United States of America Patent
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-
Mar 16, 1999
Grant Date -
N/A
app pub date -
Sep 26, 1996
filing date -
Sep 26, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A bidirectional inertial latch locks the position of a seat back of a seat on a motor vehicle during rapid changes in velocity. The inertial latch has a bracket mounted on the seat base or bottom. An arm is pivotably mounted on the bracket and securely attached to the seat back, and has a unitary arcuately toothed section for latching engagement. A pawl is pivotally mounted on the bracket and has a center of gravity offset from its pivot axis. The pawl has an arcuate toothed region for engaging the toothed region of the arm, and is pivoted by the inertial force experienced during either sudden deceleration or sudden acceleration to lockingly engage the arm to prevent the movement thereof Preferably the toothed sections of the pawl have at least three teeth.
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