DE340932C - Security lock with tumblers of different orders - Google Patents

Description

ISSUED DECEMBER 1, 1921

GERMAN EMPIRE

REICH PATENT OFFICE

PATENT LETTERING

- M 340932 CLASS 68 a GROUP 2

Erich student in Braunschweig.

Safety lock with tumblers of different orders.

Patented in the German Empire on February 14, 1920.

The invention relates to a safety lock with four tumblers I. to IV. Order, the opening of the bolt from both sides of the lock with one at the same time The two-way key is to be closed and that cannot be opened with the help of a locking hook or a lock pick.

[In addition, the new lock has no Fe-I dem that affect the tumblers, I but only strong tumblers that don't j break easily.

I The new lock is in the drawing in I of an embodiment serving as an example j shown.

Claims (1)

On a base plate ι (Dept.>. I) one Mortise lock is a locking bolt 3 with a longitudinal slot 4 on a stationary one Pin 2 inserted through which the bolt 3 ge-S is guided. On the keyhole 5 of the On the side facing the lock, the locking bolt 3 is cut out in a known manner so that that by turning the key the lock is double locked or double unlocked can be. At the top of the bolt 3 are three different positions of the bolt 3 corresponding notches 6 are arranged, in which a pin 7 of the first in Fig. 2 Locking device 8 shown and to be placed on the locking bolt 3 engages. On the baseplate Two fixed bolts 9 are arranged in the lock, which are inserted into longitudinal slots 10 the tumbler 8 enter and this lead transversely to the bolt displacement direction. A longitudinal slot 11 is also used for this purpose Tumbler '8 with which it engages over the pin 2. For the one in Fig. 3 in side view and end view reproduced key 12, a cutout 13 is provided in tumbler 8, its upper and lower curves 14 and 15 with the step 16 of the key bit (Fig. 3) work together. Both when unlocking and when locking the open Lock 8 is lifted by the curve 14 and by the exit of the pin 7 from one of the notches 6 of the locking bolt 3 is released. Through the curve ι S the tumbler 8 is back in the starting position fetched back, in which the pin 7 locks the locking bolt 3 by means of a detent 6. On the one facing away from the locking bolt 3 On the side, the tumbler 8 carries two fixed pins at the height of the longitudinal slot 11 16, 17 and below the cutout 13 a fixed locking lug 18. In order to prevent the tumbler 8 from being displaced by impact or blow When the lock enters, a second tumbler 19, particularly shown in Fig. 4, is on the Guard locking 8 has been applied. This tumbler 19 has a circular opening 20 on, with which it is placed on the pin 2 of the base plate ι and around which it is pivotable. This tumbler 19 lies down with shoulder-like extensions 2i, 22 against the pin 16, 17 of the tumbler 8, so that one outside of the longitudinal center line of this Tumbler 19 Hegender incision 23 on the lower edge 24 only after rotation the tumbler 19 allows the entry of the fixed locking lug 18 of the lower tumbler 8. The stages work with the peculiarly designed cutout 25 of the tumbler 19. 26 and 27 on the key bit (Fig. 3) together, namely the step 26 turns when the < Lock the tumbler 19 in the direction of the arrow shown in Fig. 4 so far that when pushing up the tumbler 8 with the key, the locking lug 18 into the incision 23 can occur. When the lock is unlocked, step 27 of the key bit leads the same rotational movement of the tumbler 19. In order to safely prevent the unintentional twisting of the tumbler 19 by external influences, a third tumbler 28 (Fig.s) is arranged on the second tumbler 19, which is displaceable transversely to the direction of movement of the locking bolt as a result of a longitudinal slot 29 that engages around the pin 2 and 'which is passed through a narrow incision 30 on the locking nose 18. With a blade-like locking nose 31 on the underside of the tumbler 28, this engages in the cutout 32 of the tumbler 19 and thus prevents its rotation. The tumbler 28 is equipped with a cutout 33 of such a shape that the tumbler through the step 34 of the key bit 28 is lifted before a twist 8 _; the tumbler 19 for the purpose of unlocking 'the tumbler 8 can take place. The position of the tumbler 28 can be countered by a further rotatable tumbler 35 (Fig. 6) Shift can be secured by g <fixed stop 37 through the lower edge 36 the tumbler 28 is prevented from moving. This movement is only allowed when one or the other of the cutouts 38 receive the stop 37. By 9i the step 39 of the key bit is a corresponding rotation of the tumbler 35 in Direction of the arrow drawn in Fig. 6 brought about. It is advisable to use a resilient lock to lower the central position of the upper tumbler 35 secure. Patent Aν SPRυ cn: Safety lock locked with tumblers 10; different order, characterized by that of four springless tumblers I to IV order two increasing and two pendulums are arranged and designed to each other in such a way that they one after the other ι κ on the other by a two-bit key, which is also used to open the bolt, from both sides of the lock can be. 1 sheet of drawings.