Pin tumbler cylinder lock with shearable assembly pins and...

Details Pin tumbler cylinder lock with shearable assembly pins and... Pin tumbler cylinder lock with shearable assembly pins and...

E - Fixed Constructions

05

B

E05B 27/04 (2006.01) B23P 19/08 (2006.01) B26F 3/00 (2006.01)

Patent

CA 2170141

A turnable lock cylinder (10) operable with driver (15u) und tumbler (151) pins when positioned by a key (16) at a shear line (18) in which shearable assembly pins (15a-e) are assembled in the cylinder (10) and thereafter sheared to form such driver (15u) and tumbler (151) pins for operation thereon. Each assembly pin (15a-e) is selectively weakened at a plurality of locations (17a-h) which correspond with notched depth heights of the family of keys capable of insertion in the keyhole. Such weakening (17a-h) is controlled so that pin shearing can be accomplished by application of rotational or linear forces applied to any part of the cylinder (10) except the key (16).

Cylindre de serrure (10) rotatif et pouvant fonctionner avec des tiges d'entraînement (15u) et des tiges de gorge (15l) quand on y introduit une clé (16) au niveau d'une ligne de cisaillement (18), dans lequel des tiges d'ensemble de cisaillement (15a-e) sont montées et ensuite cisaillées, de façon à constituer lesdites tiges d'entraînement (15u) et lesdites tiges de gorge (15l) servant au fonctionnement de la serrure. Chaque tige (15a-e) est affaiblie sélectivement au niveau d'une pluralité d'emplacements (17a-h) correspondant aux encoches du type de clé pouvant s'introduire dans le trou de la serrure. L'affaiblissement (17a-h) est commandé de façon à effectuer le cisaillement des tiges par application de forces rotatives ou linéaires à chaque partie du cylindre (10) à l'exception de la clé (16).

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