DE397448C - Device for securing the lock bolt - Google Patents

Description

GERMAN EMPIRE

ISSUED JULY 3, 1924

REICH PATENT OFFICE

PATENT LETTERING

CLASS 68a GROUP

(Sch 68218 m \ 68a *)

Hugo Schneider in Berlin. Device for securing the lock bolt.

Addendum to patent 378346

Patented in the German Empire on July 15, 1923. Longest duration: October 15, 1939.

The invention relates to an improvement of the device for securing the lock bolt according to patent 378346, the by, a lever moved by the key and the guide of the locking pin snaps evenly into the hole in the bolt and is released again will.

The improvement of this arrangement is that the key moved Lever of the bolt locking device through which

the pin safety device is triggered, is particularly secured. Another training of the The idea of the invention lies in the folding down of the built-in additional fuse. This exposes the lever and the lock can also be locked from the inside and be secured.

The new additional security makes unauthorized opening of the lock more difficult and thus increases its security. An exemplary embodiment of the subject matter of the invention is shown in the drawing. Fig. 1 shows the additional securing in a rear view, Fig. 2 in a front view, Fig. 3 in section along AB in the secured state, Fig. 4 in section along AB in the open state, Fig. 5 in plan view in the secured state, Fig. 6 in plan in the open state; Fig. 7 shows the fuse

ao in rear view when folded down.

In the secured state, the springs press the safety part I _1, which has the shape of the rear view of the key (Fig. 1), in the guide 0 firmly against the front wall p of the bolt locking device (Fig. 3). The lever d is thus covered with its part located above the keyhole.

If the lever is to be exposed in order to open the lock, the shaft end r of the key and the lower end of the bar push h against the lugs t of the security part / (Fig. 4). By inserting the key further, the springs «are compressed, and the safety part I slides with the guide pins» through the cut-outs ν of the wall w (Fig. 4 and 6). The lever d is thus exposed again. The key can now easily be turned around and the lock can be closed or opened.

When the key is withdrawn from the device, the springs η press the security part I firmly against the front wall p of the bolt locking device, which is thus secured again (Figs. 3 and 5).

If the door lock is to be closed and secured from the inside, the safety device, which can be rotated by the hinge. * And is held in place by the lock y (Fig. 3), is folded down after the lock y has been opened (Fig. 7). The lever d is now exposed again and the lock can be closed and secured. When the key is withdrawn, the fuse is flipped up again and held in place again by the lock y.

Claims (2)

Patent Claims:
i. Device for securing to secure the Lock bolt according to patent 378346, characterized in that the lever (d) moved by the key is covered by a safety part (Z) which, under the action of helical springs (n, n) located on guide pins (u, u ) in the guides (0 , 0) is movable. 2. Device for securing the lock bolt according to claim 1, characterized in that for closing the lock from the inside, the additional fuse is rotatably attached to the lock housing by a hinge {x). Fig. J. Fig. 4. Fig. _S. Fig. 6.