Mechanical lock with a cam-driven locking pawl
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United States of America Patent
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-
Dec 19, 2000
Grant Date -
N/A
app pub date -
May 29, 1998
filing date -
May 29, 1998
priority date (Note) -
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Abstract
A rack mounted within the housing of a mechanical lock translates. The rack, which has a rectangular cross-section, has teeth along one surface. A toothed pawl pivots housing between a locked and unlocked position. The teeth on the pawl engage the rack teeth when the pawl is locked. The pawl has a window that receives a cam. The cam has a first surface that engages a surface of the window when the cam is in the locked position. In that position, the cam prevents pawl movement teeth away from the teeth on the rack. A second surface of the cam pushes against a different surface of the window when the cam is in the unlocked position. In that position, the cam disengages the pawl teeth from the rack teeth. The window has a chamfered surface to move the pawl to its locked position.
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