Title:
MECHANICAL LOCK WITH A CAM-DRIVEN LOCKING PAWL
Document Type and Number:
WIPO Patent Application WO1999061814
Kind Code:
A9
Abstract:
A rack (20) mounted within the housing (12) of a mechanical lock translates. The rack, which has a rectangular cross section, has teeth (22). A toothed pawl (120) pivots within the 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 (62) that receives a cam (80). 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 movement of the pawl 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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Inventors:
ZHUANG JIM
TRIBBETT KEVIN
TRIBBETT KEVIN
Application Number:
PCT/US1999/012171
Publication Date:
February 24, 2000
Filing Date:
May 28, 1999
Export Citation:
Assignee:
PORTER CO P L (US)
International Classes:
A47C1/025; B60N2/08; B60N2/23; C12N15/12; F16D63/00; F16D65/14; (IPC1-7): F16D69/00
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