Push pad trigger release exit device with infinite deadlocking

Details Push pad trigger release exit device with infinite deadlocking Push pad trigger release exit device with infinite deadlocking

1995-12-26

1997-03-11

Meyers, Steven N.

Closure fasteners

Bolts

Sliding

292 92, 292332, E05C 112

Patent

active

056093713

ABSTRACT:
A push pad releasable exit device with continuous deadlocking for mounting near a door edge for engaging a lock strike includes a housing having first and second sidewalls upon which are mounted two end walls and an internal wall parallel to the end walls, each of the end walls and the internal wall having a hole, the holes being aligned on a common axis, the first sidewall having a wedge stop projecting inwardly therefrom toward the axis of the holes in the end walls and the internal wall; a tapered latch bolt mounted on a cylindrical shaft, the shaft extending through the holes and having a provision for urging the latch bolt toward the lock strike; a wedge plate having a hole providing clearance around the shaft and aligned with the holes in the end walls, having a tab pivotally resting in a slot of the second wall, and having a corner distal from the tab resting against the wedge stop when the door is in an open position; a provision for sensing when the door is in a closed position and for flipping the wedge plate away from the wedge stop to grip the shaft and to thereby deadlock the latch bolt; and further provision for releasing the shaft in response to minimal deflection of the push pad to permit the latch bolt to ride over the lock strike driven only by the normal force required to open the door.

REFERENCES:
patent: 2136539 (1928-11-01), Brinton
patent: 2481154 (1949-09-01), Rousseau
patent: 3917329 (1975-11-01), Fujiki et al.
patent: 3937504 (1976-02-01), McElroy

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