Door latch device

Details Door latch device Door latch device

1975-04-16

1976-12-28

Gilliam, Paul R.

Closure fasteners

Bolts

Swinging

292280, E05C 306, E05C 1900

Patent

active

039997910

ABSTRACT:
A door latch device includes a cancel lever pivoted to an intermediate lever in its initial position to be engaged with a pawl lever upon engagement of a pawl and latch mechanism so as to move the intermediate lever from the locked position to the unlocked position, a stopper element to rotate the cancel lever by engagement therewith upon sliding movement of the intermediate lever relative to the locking lever caused by operating the release lever when the door is open and the locking lever is in its locked position so as to disable engagement of the cancel lever with the pawl lever, and a snap action spring interconnected between the cancel lever and the intermediate lever for holding the cancel lever in either the initial position upon engagement of the pawl and latch mechanism or the rotated position thereof after engagement of the cancel lever with the stopper.

REFERENCES:
patent: 3365226 (1968-01-01), Shay
patent: 3511526 (1970-05-01), Ploughman
patent: 3572792 (1971-03-01), Foley
patent: 3672713 (1972-06-01), Pickles
patent: 3695660 (1972-10-01), Fetters
patent: 3797243 (1973-10-01), Yoshimura
patent: 3804441 (1974-04-01), Kobayashi et al.
patent: 3823966 (1974-07-01), Torii

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