Safety lock

Details Safety lock Safety lock

1998-02-12

2000-10-31

Boucher, Darnell

Locks

Special application

For closures

702787, 70277, 70218, E05B 5900

Patent

active

061384852

ABSTRACT:
A safety lock, particularly a self-locking lock, including at least one l catch and a bolt operable by a lock cylinder and a split latch nut. For creating a particularly inexpensively manufacturable and relatively narrow safety lock, a coupling device of the lock is provided with two congruent racks which have a panic or freewheel function. The racks are superimposed and mesh with the teeth of the inner and outer nut. An electromagnetic coupling is achieved with the aid of a coupling lever, which is fixable to each rack directly or indirectly subjects to the function of the particular rack and engageable with a detent of the racks.

REFERENCES:
patent: 3733861 (1973-05-01), Lester
patent: 3873892 (1975-03-01), DeHling et al.
patent: 4606203 (1986-08-01), Esser
patent: 4762212 (1988-08-01), Fish et al.
patent: 4809526 (1989-03-01), Shen
patent: 5005393 (1991-04-01), Ewalds et al.
patent: 5044184 (1991-09-01), Herbers et al.
patent: 5083448 (1992-01-01), Karkkainen et al.
patent: 5482334 (1996-01-01), Hotzl
patent: 5513505 (1996-05-01), Dancs

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