DE1653993C - Alarm device in a sliding bolt lock - Google Patents

Description

The invention relates to an alarm device in a sliding bolt lock, wherein in the area of An alarm switch is provided. by which a predetermined amount when a occurs excessive lateral pressure on the sliding bolt an alarm can be triggered.

Such an alarm device is known (see USA. Patent 2 818 475), but none a chain that triggers an alarm is provided. There is also a sliding bolt lock with a front chain known without alarm device (see U.S. Patent 2,935,864). Finally are at the scene chain chain that triggers an alarm is known from tensile forces (see USA patent documents 1 527 591 and 1 590 182).

The object of the invention is based on the object of providing an alarm device in a sliding bolt lock of the presupposed genre to create the di <»triggering an alarm both with lateral Pressure on the sliding bolt as well as when tensile stress occurs on the chain guide.

This object is achieved according to the invention in that an alarm is also triggered when it is pulled triggering, known Vorlegkctte is arranged, and that the Vorbgkette with its hanging part in a slot opening of a pivotable when a predetermined amount is exceeded, the alarm triggering frame part of the lock housing can be suspended.

Due to such a design sick gives the possibility of an alarm device in one To create sliding bolt lock, which is provided with a single alarm switch, which both at lateral diiick on the sliding bolt as well as at Occurrence of tension on the Vorlcgkate is operated. Such alarm devices with a Sliding bolt lock consequently have a relatively simple structure.

Ir. In an advantageous embodiment, the chain guide can be in the form of a band in a known manner Be chain, which acted on one of a rotating ^ the Shaft inside the viewing sheet metal exactly is wound up. .

An example of an Alis guide is shown in the drawing --lai-

placed. It shows .

Fell ° in top view, partly in section, au; aas Shear bolt lock with alarm device and chain with the sliding bolt pushed forward and

Fig "> the same plan view of FIG. 1 with the harnessed. * Under Tension standing chain.

The lock housing 36 has a frame part 32 on the against the force of a not shown! Feder'a slight pivoting movement about a vertical axis in the vicinity of the vonk.vn edge 34 can perform. The frame part 32 i · * ·, -. With pivotally mounted to the lock housing 36 befev · ■ !, which in turn at the door 12 festgeschrauhi · ,: between the Schioßgehäuse 36 and the Rah π share 32 is a deadbolt 38 is provided, the ■. , m locking and locking the door 12 into the locking brace housing 16 pushed or pushed back /. · -. η can be. It is in the area of the letter ·. K 38 a not shown alarm switch presc! .. ί, by soft r> to the occurrence of a presc < ■. · ■. side pressure exceeding the underside amount _; .if the bolt can trigger an alarm.

From the inside of the door 12, the shoe is placed ! Occupation with hooves on an inner handle 40 / head Fm cylinder lock 42 extends through the Door 12 and enables actuation (k-, Push bolt 38 with the aid of a key 120 from the outside of the door 12. On the frame part 32 it furthermore a slot opening 44 for hanging the arranged at the outer end of a band-shaped front chain Hang-in part 56 is provided.

The sheet metal housing 16 also has a Entry opening 48 / to accommodate the sliding lock 38. Furthermore, a shaft 50 is provided which is rotatably mounted within the strike plate housing 16. The ribbon-shaped front chain 46 is on her one end attached to the lower portion of the shaft 50 and extending through a slot 52 the strike plate housing 16 out. Near the lower end of the shaft 50 is a preloaded, torsion spring, not shown, attached thereto, which rotates shaft 50 to a position in FIG which the tape-shaped front chain 46 is completely wound on the same. At the other end of the belt-shaped front chain 46 is attached to a suspension part 56 which is inserted into the slot opening 44 on the frame part 32 can be attached.

On the lock housing 36, an alarm switch (not shown) is provided, which is connected to the frame part 32 is connected in such a way that it is in the open switch position as long as the frame part is 1 is in the rest position, while the same is brought into a closed switching position as soon as the frame part 32 is a Pressure exerted and in the pivoted position according to F i g. 2 is brought.

The bolt lock with alarm device described above works as follows:

As soon as the door 12 is closed and rests on the frame 14, the same can be pushed forward by the Push bolt 38 to be completed. While from the inside, this is done by operating the inside handle 4G, this is done by the

I 653 993

Outside by turning the key 120 which operates the rotary cylinder lock 42. By using of the band-shaped front chain 46 - i.e. by hanging the hook-in part 56 into the slot opening 44 - however, the door 12 can also be resiliently locked.

Pressure should be applied to door 12 while it is either locked or compliant is blocked, so requires such a pressure

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w Ld, ο w ^ d when the VorTegkettee pivoting of the frame part 32 is triggered by the pull ^{exerted by the VorTegkette 8} 46.

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the

1 sheet of drawings

Claims (2)

Patent claims: 1. Alarm device in a sliding bolt lock, with one in the area of the sliding bolt Alarm switch provided i & t, through which, when a predetermined amount occurs, lateral pressure on the sliding bolt an alarm can be triggered, characterized in that that in addition, a known per se that triggers an alarm when a train is on them Serving chain (46) is arranged, and that the serving chain (46) with its hanging part (56) in a slot opening (44) which can be pivoted when a predetermined amount is exceeded, the frame part (32) of the lock housing (3t ») that triggers the alarm can be suspended. 2. Alarm device according to claim 1, characterized in that in a known manner the front chain (46) is a band-shaped chain, ao which is acted upon by a torsion spring Shaft (50) is wound inside the strike plate housing (16).