Door security system

Details Door security system Door security system

E - Fixed Constructions

05

C

E05C 17/56 (2006.01) E05C 17/48 (2006.01) E05C 17/50 (2006.01) E05B 39/00 (2006.01) E05B 45/06 (2006.01) E05B 47/00 (2006.01)

Patent

CA 2456449

A security system for constraining the degree to which a door leaf (11) may be opened; the system being selectively activated from an inoperative position in which it does not block the opening and closing of the door leaf (11), into and out of an operative position in which it does so block the opening of the door leaf (11) beyond a predetermined constrained degree; the system being characterised in that it comprises: a chassis (14) adapted for mounting, in use, adjacent an opening edge of a door leaf (11); an electric actuator (17, 28, 36) mounted on the chassis (14); an arm (18, 29, 37) operating in conjunction with said actuator (17, 28, 36) so that the actuator drives the motion of said arm (18, 29, 37) without any lost motion mechanism.

L'invention concerne un système de sécurité de porte permettant de limiter l'angle d'ouverture d'un vantail (11). Ledit système passe sélectivement d'une position inopérante dans laquelle ni l'ouverture ni la fermeture du vantail (11) ne sont bloquées à une position opérante ou non dans laquelle l'ouverture du vantail (11) est bloquée au-delà d'un angle de contrainte prédéterminé. Le système est caractérisé en ce qu'il comprend un châssis (14) conçu pour être monté adjacent à un bord d'ouverture du vantail (11) lorsqu'il fonctionne, un actionneur électrique (17, 28, 36) monté sur ledit châssis (14), et un bras (18, 29, 37) fonctionnant simultanément avec ledit actionneur (17, 28, 36) de sorte que cet actionneur entraîne le déplacement dudit bras (18, 29, 37) sans mécanisme de rattrapage.

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