Door handle latch and lock mechanism

Details Door handle latch and lock mechanism Door handle latch and lock mechanism

1986-05-07

1987-11-10

Smith, Gary L.

Locks

Special application

For control and machine elements

232DIG71, 232173, E05C 112

Patent

active

047048824

ABSTRACT:
A door handle device and latch mechanism including a device body installed on a door panel. The device body is provided with a handle grip connected thereto by a first pivot pin and has an actuating lever connected to the device body through the first pivot pin, which is mounted unitarily with the handle grip through a second pivot pin. A reset lever is pivotally secured to the handle grip through the second pivot pin acting on the handle grip. A retractable latch mounted in the device body has a lock lever connected thereto by a third pivot pin to check the rearward slide of the latch by engagement with a receiving portion in a bottom plate of the handle device. A reset spring in the handle grip holds the reset lever and a rotatable lock cam in engagement, and also holds the reset leer and the lock lever in engagement. A leaf spring retained in the device body bottom plate releases engagement of the lock lever and bottom plate receiving portion. A lock mounted on the handle grip has a cam lock in engagement with the reset lever secured to a rotor, so that when the rotor is turned the reset lever as depressed by the lock cam turns to release the restraint on the lock lever. The lock lever urged upwardly by the leaf spring turns to release its engagement with the receiving portion of the bottom plate, and permits the latch to be retracted.

REFERENCES:
patent: 3044815 (1962-07-01), Soss
patent: 3045465 (1962-07-01), Larson
patent: 3081617 (1963-03-01), McKay
patent: 3209564 (1965-10-01), Pelcin
patent: 3871198 (1975-03-01), Miller
patent: 4280725 (1981-07-01), Berkowitz et al.
patent: 4508377 (1985-04-01), Takasaki

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