Cylinder lock

Details Cylinder lock Cylinder lock

E - Fixed Constructions

05

B

E05B 37/00 (2006.01) E05B 21/06 (2006.01)

Patent

CA 2055969

1991-09-24 ABSTRACT A cylinder lock comprising a lock body (1) and inside it a rotatable lock cylinder (2) enclosing a number of locking discs (4:6) turnable by the key (3) of the lock and provided with a peripheral notch (8) determining the combination of the lock, and a locking bar (7), which in the locking position prevents turning of the lock cylinder (2) with regard to the lock body (1). The locking discs (4) are also provided with a set of second peripheral notches (10) arranged in coopera- tion with an auxiliary bar (11) so as to prevent turning of the locking discs (4:6) relatively to each other at the end phase of the turning movement for opening the lock before the locking bar (7) moves into its position for releasing the lock. The second peripheral notches (10) are located outside of the cutting range for said combination peripheral notches (8) and are arranged side by side on the peripheral edge of each of the locking disc (4). Their amount correspond to the amount of the possible cuts for the combination peripheral notch (8), and the pitch between them correspond to the mutual pitch between the combination peripheral notches (8). The auxiliary bar (11) is continuously located partly inside the lock cylinder (2) and limits the turning range of the locking discs (4;6). The lock includes further at least one member continuously turning with the key (3) for guiding the radial movement of the auxiliary bar (11).

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