Door hold-open mechanism

Details Door hold-open mechanism Door hold-open mechanism

1975-05-27

1976-07-20

Kundrat, Andrew V.

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Sash balances

Spring

16 85, E05D 1110

Patent

active

039697894

ABSTRACT:
A door hold-open mechanism including a door hinge member and a body bracket member pivotally interconnected by a hinge pin, a hinge sector secured to the hinge member and having at least four door stop detent slots or pockets formed therein, a directional cam pivotally mounted on the hinge pin and frictionally connected to the hinge sector and having a pair of seats and an intermediate cam slot formed thereon adjacent the detent slots, a torque-rod mounted on the bracket member, a roller mounted on an end portion of the torque-rod and urged by the torque-rod into one of the four detent slots of the hinge member when the door is stopped and urged by an edge of the intermediate cam slot onto the adjacent seat of the directional cam while the door is in motion, overriding the detent slots until the door is once again stopped.

REFERENCES:
patent: 3550185 (1970-12-01), Marchione
patent: 3820192 (1974-06-01), Nakano
patent: 3889316 (1975-06-01), Koike
patent: 3905064 (1975-09-01), Brockhaus

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