Door lock arrangement

E - Fixed Constructions – 05 – C

Patent

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Details

E05C 1/08 (2006.01) E05B 15/10 (2006.01) E05B 63/20 (2006.01) E05B 63/00 (2006.01) E05B 63/04 (2006.01)

Patent

CA 2247865

A door lock arrangement comprising a frame, a door handle, a slidable deadbolt arrangement, a depressable trigger member for releasing the slidable deadbolt, a deadbolt driver for sliding the deadbolt to its extended position when triggered, and a bidirectional retraction assembly, whereby rotation of the door handle in either direction moves the deadbolt from the extended position to the retracted position. In another aspect of the invention, there is provided a door lock arrangement comprising a frame, a door handle, a slidable deadbolt arrangement, a depressable trigger member for releasing the slidable deadbolt, a deadbolt driver for sliding the deadbolt to its extended position when triggered, and a retraction assembly comprising a retraction arm having a nose portion which interferes with a part of the deadbolt when the deadbolt attempts to return to its retracted position, thereby reliably and securely blocking retraction of the deadbolt and frustrating any tampering attempt to move the deadbolt back into the fixture with a tool pressing against the distal end of the deadbolt. The door handle releases the blocking effect of the retraction arm and, simultaneously, draws the deadbolt rearwardly into its retracted position.

Serrure de porte comprenant : un cadre; une poignée de porte; un pêne dormant coulissant; un poussoir servant à déverrouiller le pêne; un actionneur faisant coulisser le pêne en position sortie; et un dispositif d'escamotage bidirectionnel qui, lorsqu'on fait tourner la poignée de la porte dans une direction quelconque, fait passer le pêne dormant de sa position sortie à sa position rétractée. Une autre version de la serrure comporte : un cadre; une poignée de porte; un pêne dormant coulissant; un poussoir servant à déverrouiller le pêne; un actionneur qui, lorsqu'il est actionné, fait coulisser le pêne en position sortie; et un dispositif d'escamotage muni d'un bras de retrait dont la partie avant interfère avec une partie du pêne pour l'empêcher de reprendre sa position rétractée. Le dispositif d'escamotage empêche ainsi, de façon sûre et efficace, le retrait du pêne et fait échec à toute tentative non autorisée visant à faire rentrer le pêne dans la serrure au moyen d'un outil poussant contre l'extrémité distale du pêne. La poignée annule l'effet d'ancrage du bras de retrait et, simultanément, fait reculer le pêne dans sa position rétractée.

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