Latch-operating mechanism for a panic egress device

E - Fixed Constructions – 05 – B

Patent

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Details

292/2, 16/20

E05B 65/10 (2006.01)

Patent

CA 2023040

The mechanism is configured to operate both a primary latch bolt and secondary latches, and provides for immediate, ready egress for the side of a door to which the mechanism is mounted, but offers high security for the other, outside of the door. The latch bolt is directly controlled by a first linkage, and the secondary latches are directly controlled by a second linkage. During egress, both linkages translate together, via a pin connection. However, a lost motion arrangement prevents retraction of either the bolt, or the secondary latches, if the other is compromised (or operated by a key or combination). From the outside, high security side of the door, the latch bolt and the secondary latches must be retracted together.

Le mécanisme est configuré pour exploiter une pêne à ressort primaire et des clenches secondaires et fournit une sortie immédiate pour le côté de la porte à laquelle le mécanisme est fixé, mais offre une sécurité élevée pour l'autre côté, à l'extérieur de la porte. La pêne à ressort est contrôlée directement par une première articulation et les clenches secondaires sont contrôlées directement par une deuxième articulation. Durant la sortie, les deux articulations se déplacent ensemble, au moyen d'une tige de liaison. Cependant, un arrangement d'entredent empêche la rétraction de la penne, ou des clenches secondaires, si l'un des éléments est compromis (ou utilisé avec une clé ou une combinaisono). De l'extérieur, le côté à sécurité élevé de la porte, la penne à ressort et les clenches secondaires doivent être dégagées ensemble.

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