A security lock arrangement

Details A security lock arrangement A security lock arrangement

E - Fixed Constructions

05

B

E05B 59/00 (2006.01) E05B 15/00 (2006.01) E05B 47/00 (2006.01) E05B 47/02 (2006.01) E05B 63/00 (2006.01) E05B 65/00 (2006.01) E05B 65/06 (2006.01) E05C 9/00 (2006.01)

Patent

CA 2542549

A security lock arrangement (10) includes a carrier (40) to be mounted on a wing member. At least one latch bolt (28-34) is displaceably arranged relative to the carrier (40) between a retracted, unlocked position and an extended, locked position. An urging means (60) acts on the at least one latch bolt (28- 34) for urging the latch bolt (28-34) to its extended, locked position. A drive means is mounted on the carrier (40) for driving the at least one latch bolt (28-34) at least into its retracted position against the action of the urging means (60). A displacement mechanism is interposed between the drive means and the at least one latch bolt (28-34), the displacement mechanism comprising a cam member (64) rotatably driven by the drive means, the cam member (64) acting on a follower of the at least one latch bolt (28-34), the cam member (64) having a maximum throw when the at least one latch bolt (28- 34) is proximate its retracted position.

L'invention concerne un agencement de serrure de sûreté (10) qui comprend un support (40) à monter sur un élément aliforme. Au moins un pêne demi-tour (28-34) est agencé déplaçable par rapport au support (40) entre une position rétractée, déverrouillée et une position déployée, verrouillée. Des moyens d'engagement (60) agissent sur au moins un pêne demi-tour (28-34) afin d'engager le pêne (28-34) dans sa position déployée, verrouillée. Des moyens d'entraînement sont montés sur le support (40) afin d'entraîner ce pêne (28-34) au moins dans sa position rétractée contre l'action des moyens d'engagement (60). Un mécanisme de déplacement est placé entre les moyens d'entraînement et le pêne demi-tour (28-34), ce mécanisme de déplacement comportant un élément de came (64) entraîné rotatif par les moyens d'entraînement, cet élément de came (64) agissant sur un appui du pêne demi-tour (28-34), l'élément de came (64) possédant une course maximale lorsqu'au moins un pêne demi-tour (28-34) s'approche de sa position rétractée.

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