Cylinder lock

Locks – Operating mechanism – Key

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

70377, 70419, E05B 2908

Patent

active

052051439

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 cooperation 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 discs (4). Their number corresponds to the number of the possible cuts for the combination peripheral notch (8), and the pitch between them corresponds 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).

REFERENCES:
patent: 2613528 (1952-10-01), Salmivuori
patent: 3797290 (1974-03-01), Taylor
patent: 3821886 (1974-07-01), Ladewig
patent: 3928992 (1975-12-01), Talbot
patent: 3948065 (1976-04-01), Martikainen
patent: 4008588 (1977-02-01), Miller et al.
patent: 4083212 (1978-04-01), Proefrock
patent: 4267717 (1981-05-01), Martikainen
patent: 4512166 (1985-04-01), Dunphy et al.
patent: 4686843 (1987-08-01), Martikainen et al.
patent: 4742703 (1988-05-01), DeWalch et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Cylinder lock does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cylinder lock, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cylinder lock will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2318932

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.