Door lock handle assembly for leftward and rightward pulling doo

Closure fasteners – Bolts – Multiple

Patent

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Details

292216, 292DIG46, 70 99, E05C 330

Patent

active

052211150

ABSTRACT:
A door lock handle assembly in which left and right latch members are rotatably supported on a pin, a sector lock member is secured to an operating shaft coupled to a rotor of a front unit and also to a stem shaft of a thumb knob, a lock projection is secured to a shoulder portion of the left latch member such that it is in contact with a left end portion of an arcuate edge of the sector lock member, a lock projection is secured to a shoulder portion of the right latch member such that it is in contact with a right end portion of the arcuate edge of the sector lock member, a drive member is secured to an interlock shaft coupled to shafts of front and rear handles, and a drive projection is secured to an arm of the drive member such that it is in contact with passive arms of the left and right latch members. The handle assembly can be used for both leftward and rightward pulling doors and permits manufacturing cost reduction by mass production of a single item product.

REFERENCES:
patent: 2530330 (1950-11-01), Groeger
patent: 2821422 (1958-01-01), Rainman
patent: 2917915 (1959-12-01), Rainman
patent: 3198564 (1965-08-01), Welsh
patent: 4457146 (1984-07-01), Weinerman
patent: 4511166 (1985-04-01), Weinerman

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