Safety key and locking cylinder, and locking system with...

E - Fixed Constructions – 05 – B

Patent

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Details

E05B 35/10 (2006.01) E05B 27/00 (2006.01) E05B 15/08 (2006.01) E05B 29/00 (2006.01) E05B 35/00 (2006.01)

Patent

CA 2492088

The invention relates to a security key comprising a shank (6), which is provided with a plurality of guide surfaces (7) for engaging with tumblers and has a front and a rear end (6a, 6b). The rotor (4) of the corresponding locking cylinder (2) has at least one guide surface (8) on a front end (4a), said surface co-operating with an additional guide surface (9) on the rear end (6b) of the shaft (5). The security key is retroactively compatible and affords a high degree of forgery protection.

La présente invention concerne une clé de sûreté comprenant une tige (6) qui présente une pluralité de surfaces de commande (7) pour permettre la mise en place de pênes, et des extrémités avant et arrière (6a, 6b). Le rotor (4) du cylindre de fermeture (2) correspondant présente à une extrémité avant (4a) au moins une autre surface de commande (8) qui coopère avec une autre surface de commande (9) disposée à l'extrémité arrière (6b) de la tige (5). La clé de sûreté est compatible avec le mouvement arrière et possède une bonne protection contre la copie.

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