Door handle assembly with emergency-unlocking function

Details Door handle assembly with emergency-unlocking function Door handle assembly with emergency-unlocking function

1994-02-03

1996-09-17

Cuomo, Peter M.

Closure fasteners

Bolts

Emergency operating means

29234117, E05B 6510, E05B 1502

Patent

active

055561403

ABSTRACT:
A door handle assembly has an emergency-unlocking function, so that even in a condition in which a latch bar 2 of the assembly is locked on a front side of a door 4, it is possible for a user to unlock the assembly from a rear side of the door 4 within fail. A socket member 8 is pivoted to a socket-member casing 6 through a vertical pivot 9, the casing 6 being fixedly mounted on a stationary frame element 7. In the rear side of the casing 6, a manually-operated pedal 12 is pivoted to a pedal casing 11 through a first horizontal pivot 13, the pedal casing 11 being fixedly mounted on the frame element 7. A base-end portion of a holding rod 14 is pivoted to one end portion of the pedal 12 through a second horizontal pivot 15 to have a front-end surface of the rod 14 abutted on a stop portion 19 of the socket member 8, the stop portion 19 being disposed behind the pivot 9. The rod 14 is urged forward by a spring 20 contacting the pedal 12.

REFERENCES:
patent: 875338 (1907-12-01), Foery
patent: 2747906 (1956-05-01), Emmert
patent: 2772110 (1956-11-01), Petrochko
patent: 2782061 (1957-02-01), Borchers et al.
patent: 4181338 (1980-01-01), Sterling
patent: 4202573 (1980-05-01), Berkowitz et al.
patent: 4893855 (1990-01-01), Itakura
patent: 5149157 (1992-09-01), Laugery et al.

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