Z-bar security system with key and secured latch

Details Z-bar security system with key and secured latch Z-bar security system with key and secured latch

E - Fixed Constructions

05

C

E05C 17/32 (2006.01) E05B 63/24 (2006.01) E05B 65/00 (2006.01) E05B 63/00 (2006.01)

Patent

CA 2249649

A system for locking a door can: (1) lock the door in dead bolt fashion in three modes, (2) allow the door to open a limited distance, or (3) allow the door to open freely. The system has a door-mounted latch assembly (10) that includes a base plate (18), an intermediate link (36) pivoted to the base plate (18), and a mode selection and latching assembly (44) that is pivoted to the intermediate link (36). A latch plate (12) is mounted on the door frame. The latch plate (12) has a tubular portion (72) with an opening (74) for receiving the latch member (52). A sleeve (78) fits inside the tubular portion (72) of the latch plate (12). The latch plate (12) includes a locking mechanism (80). The locking mechanism may be a spring-loaded pin (80) mounted with the sleeve. The locking mechanism may alternatively be a protrusion (96) and slot (98) system. A mechanism (114) is also provided for locking and unlocking the locking system from the exterior of the door.

Système de verrouillage d'une porte grâce auquel on peut (1) verrouiller la porte au moyen d'un pêne dormant à trois positions, (2) entrouvrir la porte, ou (3) ouvrir la porte complètement. Le système comporte un ensemble loquet (10) monté sur la porte qui comprend une plaque d'assise (18), une articulation intermédiaire (36) pivotant sur la plaque d'assise (18) et un ensemble sélecteur de position-loquet (44) pivotant sur l'articulation intermédiaire (36). Une plaque de loquet (12) est montée sur le cadre de porte. La plaque de loquet (12) comporte une partie tubulaire (72) avec une ouverture (74) destinée à recevoir le loquet (52) proprement dit. Une douille (78) s'ajuste à l'intérieur de la partie tubulaire (72) de la plaque de loquet (12). La plaque de loquet (12) comprend un mécanisme de verrouillage (80). Le mécanisme de verrouillage peut consister en une cheville (80) actionnée par un ressort, montée avec la douille. Ce mécanisme peut aussi consister en une protubérance (96) et une fente (98). L'invention décrit aussi un mécanisme (114) qui permet de verrouiller et de déverrouiller le système de verrouillage depuis l'extérieur de la porte.

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