DE378346C - Device for securing the lock bolt - Google Patents

Description

GERMAN EMPIRE

ISSUED ON JULY 11, 1923

REICH PATENT OFFICE

PATENT LETTERING

- Jlft 378346 CLASS 68 a GROUP

(NS 63118 III \ 68a)

Hugo Schneider in Berlin.

Device for securing the lock bolt.

Patented in the German Empire on October 16, 1921.

There are already locking pin locks known in which the triggering of the locking Through a second beard behind the actual key bit he follows.

However, these facilities do not guarantee adequate security. As a result of easy execution of the shut-off piece can easily be moved out of its position or bent. The triggering of the locking pin is not even if the position is inclined, which means that it is easily clamped and no longer snaps into the hole in the bolt.

With the subject of the invention, the security is considerably greater. The backup is a device of its own, independent of the actual castle and such is made strong and fastened that their elimination should be excluded. the Triggering of the pen takes place in the subject matter of the invention evenly by means of a

Guide that leads him as deep as desired into the hole in the bolt.

With the new facility, \ · οη is a priori Care has been taken that it remains usable in any case and a good one Offers security.

In the present device, in contrast to the known arrangement of the Key only a supplementary beard that ίο has exactly the same shape as the main beard. While when closing from the outside, the actual beard of the key closes the lock and the additional beard of the key triggers the bolt lock, the two beards change theirs when closing from the inside Task.

A special key is also required in the known device in order to be able to use Entreetüren to push back the handle, which still holds the door afterwards the lock is already open.

In the present device, an advantage is achieved in that by means of the aforementioned With the key with the attached beard, the handle of the lock is easily pushed back can be.

In the drawing, Fig. 1, 2 and 3 the lock bolt safety device with the bolt and the handle of the actual lock in the open state, namely Fig. Ι in view, Fig. 2 in section according to AB, Fig. 3 in plan. Figs. 4, 5 and 6 show the lock bolt safety device with the bolt and the handle of the actual lock in the locked state, namely Fig. 4 in view, Fig. 5 in section according to AB, Fig. 6 in plan.

In the unlocked position of the actual lock (Fig. 1, 2 and 3) the pin α v ^ rests continuously pushed back on the bolt b. The spring c is thus stretched. The lever d, which is loosely movable through the joint e , is always lowered by the pressure of the spring / 'when not in use. If the door lock is to be locked and secured from the outside, only the bit g of the key (Fig. 2) is activated. The second beard, lying at the end of the shaft, which has the same shape, moves in the facility without performing any special activity. When the hole i appears in the bolt b (Figs. 5 and 6), the spring c pushes the pin a, which is pushed back and forth evenly by a guide k, into the hole i. The lock is thus secured against unauthorized opening. Unlocking the lock by means of a hook or other tool is not possible, since only both bits of the key can open the lock at the same time. which is illustrated by the following description.

First, the second beard Ii (Fig. 2) pushes the lever d (Fig. Ι and 4) upwards in the first quarter turn. In this way, the pin is α from the hole;. "Of the bolt / '(fig. 2 and 3) by means of the wedge-shaped tip of the lever d (Fig. 2 and 5) lifted Xunmehr can beard g of the key, since this only in the the second quarter turn closes, open the lock, the pin α now rests again, tensioned by the pushed-back spring f Fig. 2 and 3), on the bolt b.

If the lock is to be locked and secured from the inside and then opened again, the same process is repeated from the outside as before, except that now the beard /; carries out the activity as before Bart g \ and Bart g the activity as Bart h.

If the door lock, which is opened from the outside but is still locked by the handle m (fig. R and 4), is to be opened completely, the bit h of the key (fig. 2) comes into action.

Claims (3)

P ATENT claims: 1. Behind the actual lock attached \ * device for securing the lock bolt by means of a locking pin, characterized in that by a lever moved by the key (d) and the guide (k) of the locking pin (a) evenly in the hole (/) of the Latch (b) snaps into place and is released again. 2. Embodiment of the device for securing the lock bolt according to claim i, characterized in that when the lock is unlocked from the outside, a beard (g) located in the middle of the shaft causes the actual lock and the attached beard (h) to trigger the pin, while when unlocking from the inside, the beard (h) attached to the shaft end causes the actual lock and the beard (g) triggers the locking pin (α). 3. Embodiment of the device for securing the lock bolt after spoke ι and 2, characterized in that the attached beard (Zt) of the key at the same time pushes back the handle Om) of the lock. 1 sheet of drawings.