A cylinder lock and key system using the cylinder lock

E - Fixed Constructions – 05 – B

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E05B 15/00 (2006.01) E05B 27/06 (2006.01)

Patent

CA 2684504

Provided is a cylinder lock, which can make a key change without taking auxiliary pins to the outside and can increase the number of changeable keys in accordance with the number of the auxiliary pins. The cylinder lock can set such usable/unusable states of the individual keys in an unlimited number that another spare key can be used even after the master key was used. In the cylinder lock, the auxiliary pins are sandwiched between upper pins and lower pins by arranging set/reset members slidably and pushing them, and the locking/unlocking keys can be changed by removing the auxiliary pins from between the upper pins and the lower pins.

L'invention concerne une serrure à barillet, qui peut permettre un changement de clé sans faire sortir des goupilles auxiliaires et peut augmenter le nombre de clés pouvant être changées selon le nombre des goupilles auxiliaires. La serrure à barillet peut régler les états utilisables/inutilisables des clés individuelles de manière illimitée de telle sorte qu'une autre clé de rechange peut être utilisée même après que la clé maître ait été utilisée. Dans la serrure à barillet, les goupilles auxiliaires sont intercalées entre des goupilles supérieures et des goupilles inférieures en disposant des éléments de réglage/réinitialisation de façon coulissante et en les poussant, et les clés de verrouillage/déverrouillage peuvent être changées en enlevant les goupilles auxiliaires de la position entre les goupilles supérieures et les goupilles inférieures.

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