Rotary handle operated door lock

Details Rotary handle operated door lock Rotary handle operated door lock

1986-04-11

1987-11-17

Wolfe, Robert L.

Locks

Special application

For control and machine elements

70210, 2923363, 292359, B60R 2502

Patent

active

047064781

ABSTRACT:
A rotary handle operated lock includes a pan-shaped housing member that has a back wall at the base of a forwardly facing recess. A guide member is welded to the rear face of the back wall and cooperates with the back wall to define a sturdy guide channel which slidably mounts a control member form movement between locked and unlocked positions. A shaft extends through aligned holes that are formed in the back wall and in the guide member, and through a keyhole shaped slot that is formed in the control member. The shaft has a front end region that carries a pivotally mounted, nestable operating handle, and a rear end region that carries a latching arm. The operating handle and the latching arm rotate with the shaft between latched and unlatched positions. The shaft has opposed flat side surfaces that are selectively engaged and released by the opposed flat sides of the keyhole shaped slot when the control member is moved to its locked and unlocked positions, respectively, whereby the shaft is prevented from rotating or permitted to rotate.

REFERENCES:
patent: D119418 (1940-03-01), Anderson
patent: 243374 (1881-06-01), Howard
patent: 789568 (1905-05-01), Roe
patent: 1652660 (1927-12-01), Devereaux
patent: 1720804 (1929-07-01), Tomcray
patent: 2136854 (1938-11-01), Knott
patent: 4270780 (1981-06-01), Bernard
patent: 4438964 (1984-03-01), Peters
Eberhard Manufacturing Company Division of the Eastern Company Catalog No. 102 entitled "Handbook of Latches, Locks, Hinges Handles and Related Hardware", copyright date 1983.

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