Mechanical lock with a cam-driven locking pawl

Details Mechanical lock with a cam-driven locking pawl Mechanical lock with a cam-driven locking pawl

1998-05-29

2000-12-19

Oberleitner, Robert J.

Brakes

Rod

188265, B65H 5910

Patent

active

061616575

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.

REFERENCES:
patent: 5265936 (1993-11-01), Droulon et al.
patent: 5280999 (1994-01-01), Jones et al.
patent: 5618083 (1997-04-01), Martone et al.
patent: 5718482 (1998-02-01), Robinson
patent: 5871259 (1999-02-01), Gehart
patent: 5899533 (1999-05-01), Tatematsu
patent: 5984412 (1999-11-01), Magyar

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