Untitled record

The invention relates to a theft / warn and security device for plug-in devices, in particular car radios.

The burglary of high-quality devices, in particular radios from motor vehicles, is "a major problem. The protection of the devices is becoming increasingly important. So far, only Warneir directions are known dl ', although alarm trigger, but not provide sufficient protection against stealing.

The invention has for its object to overcome the above drawbacks and protect plug-in devices against stealing.

This is achieved that the unauthorized pulling out of the device prevents the existing wire connection to the vehicle a take out and the train contact triggers the signal generator via the tent mechanism.

Legitimate removal of the device is effected by the vehicle connection being released before the device is pulled out. As a result, the train contact has no resistance and is therefore not triggered. A pulling out of the device is possible and the wire connection on the Gesäterfickwand can be solved.

Created by the invention of theft alarm and theft alarm, the alarm immediately addresses the theft problem and gives a warning, in particular a clearly audible warning tone. By additional device - as required by law - the warning period is limited laterally. In addition, the wire connection to the vehicle sets the thief against a mechanical resistance, which only requires a corresponding amount of time in the case of signal conditioning. Risk can be overcome. Thus it can be assumed that there is a large increase in absorption.

The invention is illustrated by way of example in the attached drawing. Bs show:

Figure 1 shows the complete units

Figure 2 shows the Sehaltvorgang to trigger the alarm

The device according to the invention works as follows:

The fastening wire (4) · with an electr. Train contact (S) and timer (6) is connected to the Gerfiterflckwand, the device is inserted into the bracket (1) in the vehicle, the fastening wire is tightened and connected to the vehicle (7).

Now, if the device is pulled out without authorization, the train contact (5) by closing the circuit alarm, which is propagated by the signal generator (β), the timer (6) limits the alarm duration. At the same time, the fastening wire (4), which is still connected to the vehicle, [...] prevents a complete pulling out and throwing out device.