A lock and key system with extra code combinations

Details A lock and key system with extra code combinations A lock and key system with extra code combinations

E - Fixed Constructions

05

B

E05B 27/10 (2006.01) E05B 15/14 (2006.01) E05B 27/08 (2006.01)

Patent

CA 2538704

A high security lock and key system with an increased number of code combinations is disclosed. The blade of the key has a wave-like guiding surface (105) at the side of the key blade which, upon insertion-into an associated lock having a ro-tatable key plug, engages with one or more side locking tumb-lers (206) in the lock cooperating with a side locking mecha-nism for locking the key plug against rotation. The key blade has an extra code level (121) located at a longitudinally ex-tending shelf surface, viz. at the upper boundary of the side material region where the wave-like guiding surface is cut at the side of the key blade.

L'invention concerne un système de protection haute sécurité avec clé et verrou, qui comprend un nombre accru de combinaisons de codes. La lame de la clé présente sur le côté une surface de guidage ondulée (104). La lame, lorsqu'elle est insérée dans un verrou associé présentant un barillet rotatif, vient au contact d'une ou de plusieurs gorges de verrouillage latéral (206) du verrou qui coopèrent avec un mécanisme de verrouillage latéral pour verrouiller le barillet et l'empêcher de tourner. La lame de la clé comprend un niveau de code spécial (121) situé sur une surface en plateau longitudinale, c'est-à-dire au niveau de la limite supérieure de la zone du matériel latéral où la surface de guidage ondulée est coupée sur le côté de la lame de la clé.

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