DE6934341U - DEVICE FOR TRIGGERING SIGNALS IN THE EVENT OF ELECTRICAL ALARM OR. MONITORING DEVICES - Google Patents

Description

August 25, 1969

Pe / Rö

Helmut Marx, 6O8I Biebesheim, Im Städteloch k

and
Helmut λί e η η er, 6O8I Stockstadt, Sudetenstrasse

Device for triggering signals in the event of an electrical alarm

or monitoring devices.

The innovation relates to devices for triggering signals in electrical alarm or monitoring devices. Such devices are intended to trigger an alarm signal if a door or a cupboard is opened by unauthorized persons.

Numerous devices for this purpose have already become known which - in some cases with considerable effort - have a reliable « Ensure borrowed surveillance. Often when building a

■ i building or installation of a door the simultaneous installation of a

monitoring device not provided; however, in numerous cases there is later a desire to protect the door against unauthorized persons Opening to be secured by an alarm system. However, the subsequent installation of monitoring devices in doors is usually included associated with considerable effort.

The innovation relates to a device for signal triggering, which is designed in such a way that it can also be used subsequently Installation on existing doors is well suited.

It is therefore a device for signal triggering in a Alarm or monitoring device for doors, cabinets or the like. According to the innovation al? angled door strike plate formed, which carries on its inside a known switch with resilient switching cam, which is not closed The lock protrudes into the light space which, when the lock is closed, is occupied by the handle of the lock. Here

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the device is made such that when the bolt is closed, the resilient switching cam through this bolt against the Effect of a spring force depressed in one switch position is in the other switching division when the bolt is not closed.

It is useful if the switch housing on the side part of the Locking device attached and the longitudinal direction of the switch housing is parallel to the side part of the strike plate.

In a preferred embodiment of the innovation that is Switch housing below the opening provided for the case in the front plate of the strike plate, but above that for the Latch provided opening of this front panel is arranged.

It is advantageous if the part of the lock that actuates the switching cam is in the zone that occurs when the lock is closed? with the Switching cam comes into contact, has an edge that runs obliquely to the direction of the closing movement.

The switch housing preferably carries at least one, preferably two connection contacts for outgoing electrical lines on the face facing away from the front panel.

In the following, the innovation is described in connection with the figures representing an exemplary embodiment. Here is all that is not necessary for understanding the innovation omitted for the sake of clarity. Corresponding to each other Parts are identified in the same way in all figures.

It shows:

1 shows a striker plate designed according to the innovation seen from the rear,

2 shows the same strike plate in a side view from the inside,

FIG. 3 is a plan view of the strike plate shown in FIG. 2.

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The strike plate shown in the figures consists essentially of an angle piece, one leg of which forms the front plate 1 and the other leg of which forms the side part 2. The front plate of the lock plate has in the usual way a rectangular opening 3 for the latch and a rectangular opening ¹ i for the bolt 5, which forms part of the door lock attached to the door leaf.

In Fig. 2, the bolt 5 is drawn on the left with the lock not locked, while on the right the bolt with the designation 5 ^{1 is shown in} dashed lines in the position it has when the lock is locked. The latch is provided with a bevel 6 at the top at the front. Between the two openings 3 and k , the housing 7 of a so-called microswitch is fastened to the side part 2 by means of the two screws 9 in such a way that the switching cam is OK when the lock is closed, i.e. when the bolt 5 is pushed forward from its beveled flank 6 into the interior of the switch housing 7 is pressed = As a result, the electrical connection between the two connection contacts 11 is interrupted in the interior of the switch housing 7.

If the lock is opened unauthorized, e.g. by means of a Duplicate key, the bolt moves a bit against the closing movement, then the switching cam 10 is activated by the action the spring force exit the switch housing again and at the same time the switch is transferred to the other switch position, so a connection is established between the two connection contacts 11 and thereby the alarm siren, alarm bell or other optical or acoustic signaling means switched on. With one in a suitable place, e.g. concealed Switch off / the alarm system as required, e.g. switched off during the day will. In some cases it can also be useful, not only in the house but also on the outside of the building to attach a circuit breaker to a hidden place. This is useful when you are at night, e.g. when returning from

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a trip, unlock the lock secured by the alarm system want without triggering an alarm.

For retrofitting a device for signal triggering In a door, it is sufficient to replace the existing strike plate with a newly designed strike plate with microswitch and create a small recess in the door frame at the point so that the new strike plate to be inserted is the microswitch wearing. Before inserting the new strike plate, the required lines are soldered to the connection contacts 11 or screwed on and then laid in a manner known per se. In this way it is possible with a minimal effort and retrofitting a door with a reliable alarm system without significant interventions in the door frame.

The alarm system is also particularly suitable as a monitoring device in the evenings in large buildings with many outside doors, in order to determine whether all doors are properly locked. If even one of the secured doors is not properly locked, the alarm system will respond.

- 5th

Claims (6)

I Il ti 11 I · II I I I I I I ■ I I I I I III! · I ti I! 11It I ·· «• Il III · III Il ti Il If - 5 - Protection requirements 1. Device for triggering signals in an alarm or monitoring device For doors, cupboards or the like., characterized in that it is designed as an angled door strike plate is, which carries a known switch with resilient switching cams (ίο) on its inside, which does not When the lock is closed, it protrudes into the clear space, which is occupied by the bolt (5) of the lock when the lock is closed is and the device is made such that when the bolt is closed, the resilient bchaltnocken (10) through this Bar against the "effect of a spring force depressed in the is one switch position, but is in the other switch position when the bolt is not closed. 2. Apparatus according to claim 1, characterized in that the Switch housing (7) on the side part (2) of the strike plate is attached. 3. Apparatus according to claim 1, characterized in that the longitudinal direction of the switch housing is parallel to the side part (2) of the strike plate is. 4. Apparatus according to claim 1, characterized in that the switch housing below the opening provided for the case (3) of the front plate (l) of the strike plate, but above ier for the bolt (3) provided opening (h) of this front plate (l) is arranged. 5. Apparatus according to claim 1, characterized in that the the switching cam (10) actuating part (5) of the lock in the zone that closes the lock with the switching cam comes into contact, has a flank (6) which runs obliquely to the direction of the closing movement. Q ° Ä 6. Apparatus according to claim 1 and 3, characterized in that the switch housing (7) at least one, preferably zv / ei connection contacts (ii) for outgoing electrical lines on the face applied by the front panel.