Method of opening of a lock cylinder has keys to pivot on the closure of the passage of the cover, a cylinder and a cover for the implementation of this

摘要

The secure cylinder lock is opened by a key (3) with symmetrical double encoded indentations (5). The cylinder has a set of washers with openings for axial introduction of the key and its rotation through a determined angle before continuing its axial displacement. The washers are terminated at the end opposite the key entry by several pivoting pins (6) one of which, at rest, blocks the key passage through a slot (2) in an end disc (1). An elastically returned movable part (11) is located against the pivoting pin which blocks the key passage. The key end has a finger which slides under the action of a spring. This finger is held in the key when the key end is supported on the pivoting pin at the end of its introduction. Key rotation separates the pivoting pins and the finger is introduced between the pin and the movable part which is separated by continued axial displacement of the key.