DE386544C - Electromagnetic door lock - Google Patents

Description

GERMAN EMPIRE

tSÜS TRIEilB i OSTKDOM A

ISSUED DECEMBER 11, 1923

REICH PATENT OFFICE

PATENT LETTERING

- M 386544 CLASS 68 a GROUP 38

(K ₇ SoSi III \ 68a) "

Hugo Klostermann in Hagen i. W.

Electromagnetic door security.

Patented in the German Empire on June 19, 1921.

The invention · relates to an electromagnetic remote action is triggered, whereupon the

door lock to be triggered on the table. The lock bolt must be closed.

already a lock safety device by means of one in which the pawl must be

Bolt of the door lock engaging lock | solenoids kept attracted for so long

latch known to be operated by electromagnetic i until the bolt is closed

will. Beiries are therefore interdependent.

There is also a door lock known with a built-in bolt lock that is electroinagnetic to be triggered from remote locations and by a key to be inserted into the lock is. The bolt lock · is easy with a duplicate key or a lock pick trigger.

ίο The invention is different from the known devices in that a door bolt completely independent of the door lock is in use who comes to lock the door with a key to secure it and in

iS this situation by, as is known, electromagnetic tongue to be lifted is held, but not unlocked by a key is. Opening it with a duplicate key or lockpick is therefore completely out of the question.

The subject of the invention is shown in the accompanying drawing, for example: 'Fig. ι shows a view in the open. stands.

Fig. 2 shows a view in the closed state.

■ Fig. 3 shows a view of the contact device.

The bolt A rests between a base plate and a thick-walled sheet metal jacket that tightly encloses the bolt in such a way that it can be easily moved back and forth.

In order to bring the bolt into the closed state, the matching key is inserted into the keyhole C, which is attached on the one hand to the base plate and on the other hand to the jacket.

The bit of the key now grips into the notch D and pushes the bolt into the strike plate, which is screwed to the door frame, when it is turned to the right. The front upper edge of the bolt pushes a tongue G arranged in the strike plate up until an incision F of the bolt is exactly below tongue G.

Now a spring L, which is tensioned when the tongue is pushed up, presses the tongue G firmly into the incision F as a result of the relaxation that occurs and now no longer leaves the bolt behind. The key bit is now in the opposite direction from the keyhole.

In order to be able to turn it around completely and aim through the keyhole, the sheet metal jacket is punched out at point P.

The bolt is now in the closed state (Fig. 2) and can now be locally cannot be locked even with the matching key.

The prerequisite for this, of course, is that you are outside the house or room is located, but even from the inside of the room the opening is only possible with the help of breaking tools possible because the bolt is completely enclosed by the sheet metal jacket. The latch is opened as follows Ways:

The matching key is inserted into the keyhole R of a remote lock (Fig. 3).

The key bit engages in the lever 5, which is held by the bolt T and rests on the pin W. In a right turn of the key, the key bit pushes the lever 6 "on the spring U and these in turn to the spring V. Both springs each have a terminal. Terminal Z is connected to the negative pole of a battery and mounted in the striking plate electromagnet H, terminal X connected to the positive pole of the battery.

Tongue G is held and guided by a lever system, the individual parts of which interlock and are connected by movable bolts.

The bolt K goes through the base plate and jacket of the strike plate, as does the two guide rings O.

Point I of the lever system lies exactly vertically above the magnet H. If the spring U is now pressed onto the spring V by the lever 5 ", the circuit is closed, since both poles are now touching, and magnet H consequently pulls the lever / immediately.

Tongue G \ vir: l immediately pulled up and now releases the latch. This is pulled back at the same time by the spring E, which has been tensioned when closing.

Claims (1)

Patent claim: v Electromagnetic door lock, characterized by a 10 attached to the door independently of the door lock; Bolt (A) with a locking opening (D), which allows locking by means of a key, but not its opening, in connection with a tongue (G) which, as is known, is to be released electromagnetically, engages in the bolt (^ i) and is attached to the door frame , after which the bolt is automatically opened by spring force. For this purpose ι sheet of drawings.