Cylinder lock with cylinder casing and flat key for a...

E - Fixed Constructions – 05 – B

Patent

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Details

E05B 27/02 (2006.01) E05B 19/06 (2006.01) E05B 27/06 (2006.01)

Patent

CA 2733484

The invention relates to a cylinder lock comprising housing pins (3) and cylinder core pins (4), wherein the cylinder core pins are formed on the end pro-truding into the key channel (7) as sensing extensions (8) that are narrower than the diameter of the cylinder core pin and are oriented in the longitudinal direction of the key channel, wherein at least two cylinder core pins have sen-sing extensions that are different from one another, arran-ged either centrally along the centre longitudinal plane of the key channel or offset at a distance parallel thereto and are intended for sensing milled incisions (17, 18) on the narrow side(s) (15) of the key, wherein approximately par-allel core pin bores with resiliently prestressed core pins (6) that can be moved therein are provided on at least one side of the key channel, which pins have sensing lugs (9) protruding into the key channel and ending at a distance from the centre longitudinal plane for sensing milled incisi-ons (16) at the edge(s) of the narrow side(s) of the key, the distance of the sensing lugs from the centre longitudinal plane being greater than the distance of the sensing extensi-ons of the cylinder core pins arranged offset to the left or right of the centre longitudinal plane.

L'invention concerne une serrure à pompe comportant des tiges de boîtier (3) et des tiges de noyau de cylindre (4) conçues en tant que saillies de palpage (8) sur l'extrémité s'étendant dans le canal de clé, les saillies de palpage étant plus fines que le diamètre de la tige de noyau de cylindre et dirigées dans la direction longitudinale du canal de clé. Au moins deux tiges de noyau de cylindre présentent des saillies de palpage différentes disposées de façon centrale le long du plan longitudinal central du canal de clé ou parallèlement à ce plan à distance de celui-ci, servant à palper des fraisages d'évidement (17, 18) pratiqués sur le ou les côtés étroits de la clé (15). Des perçages de tiges de noyau essentiellement parallèles contenant des tiges de noyau (6) coulissantes, précontraintes de façon élastique, sont prévus sur au moins un côté du canal de clé, et présentent des cames de palpage (9) faisant saillie dans le canal de clé, aboutissant à un espace du plan longitudinal central, destinées à palper des fraisages d'évidement (16) sur le ou les bords du ou des côtés étroits de la clé. L'espace entre les cames de palpage et le plan longitudinal central est supérieur à l'espace entre les saillies de palpage des tiges de noyau de cylindre disposées de façon décalée à gauche ou à droite du plan longitudinal central.

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