DE418584C - Door lock - Google Patents

Description

The invention relates to a door lock ο. Like. That is despite the simple design characterized by an extremely high level of security. According to the invention, the Provide tumblers with lever-like extensions that when moving encounter by the key against a stop of the lock case, so that they at be inhibited from moving further. This

ίο The stop can also be attached to the latch. This inhibition occurs when the keys or tumblers are exactly in the lifted position. As a result of this Arrangement is avoided with certainty that the lock by means of duplicate keys, etc. can be opened.

On the drawing is the new lock

in an exemplary embodiment iti Fig. Ι shown with the bolt closed and with the lock cover removed;

Fig. 2 shows a second position of the parts, with the key and the tumblers are in the excavation position;

Fig. 3 is a cross section along line AB of Fig. 2.

In the lock case α , the tumblers d are rotatably mounted on a lock sleeve b above the keyhole c, which are pressed by springs / with rearwardly directed extensionsg against a square pin h of the bolt i , the projections k of the extensions g so in front of the square pin h put that the bolt / is locked. An angled stop I is attached to the rear wall of the lock case α. This stop can also be attached directly to the bolt / in the same or a different form.

If the key m is turned from the position according to Fig. Ι into the position according to Fig. 2, the tumblers with their projections k are withdrawn from the square pin H , and the key bit enters the key cutout / i of the bolt /. If the keys or tumblers are exactly in the lifted position, the extensions g of the tumblers d have in the meantime placed themselves against the stop / in such a way that they are prevented from moving further. If only one step on the key bit were not exactly correct, the tumbler in question would hit the .Anschlag / and thereby prevent further turning of the key, or the relevant projection k would not be completely withdrawn from the square pin h , so that further movement of the Key could no longer take place at all. For this reason, nothing can be done with a duplicate key.

As the key continues to be turned, the bolt / is pre-locked, the tumblers d return to their initial position, but the projections o rest against the square pin h , which is now located between two projections each. As the drawing shows, it is also possible to close a second time.

Instead of a tumbler of the thickness shown, each tumbler can also be made from consist of two or more thin parts. With a suitable arrangement of the parts of the Lock can open the keyhole instead of

right upright can also be arranged lying down. If necessary, * the extensions the tumblers can also be adjusted so that they can be set very precisely. The number of tumblers can of course be any, and the lock can be used for any purpose. When used as a safe lock, all tumblers can be different from each other so that unlimited security against unauthorized opening of the lock is guaranteed. The lock can too be carried out with a trap.

Claims (3)

Patent Claims: i. Door lock or the like, characterized in that above the keyhole i Tumblers with lever-like extensions when moving by means of 'the Hit the key against a stop attached to the lock case or to the bolt, so that they are prevented from moving when keys and tumblers are exactly in the lifted position. 2. Door lock according to claim 1, characterized in that the extensions (g) of the tumblers (d) in the closed position with projections (k, ο ) create against a square pin (A) of the bolt (i) . 3. Door lock according to claim 1, characterized in that the extensions the tumblers are adjustable. Jtbb.t J966.Z Mb. 3 fc /! M # J? -2 BERLIN. PRINTED IN THE FRONT PRINT.