| 摘要 |
<p>The present invention refers to a alarm washer for alarming expensive cloths and other valuable objects, said alarm washer consists of two, towards each other cooperating parts, namely a first part (2) comprising the alarm device (3) itself and one, from the alarm device protruding needle (8), which is intended to be brought through the object in question, which shall be alarmed and a second part (9) into which the needle further is brought forwards and in which the free end (10) of the needle (8) is fixable and said second part (9), whenever applicable, includes means, which influence an alarm central, when an alarmed object, having its alarm washer, is taken away out from a sales locality via special alarm frames. The first part (2) of the alarm washer (1 ) has a function which starts an alarm when the contact is broken during the separation of the contacts attached to the needle (8) from the first part (2) already inside the shop by that the part (2) comprises an electronic circuit (4) for controlling the alarm device (3) and which uses the contacts attached to the needle function in order to give an alarm signal by an electric connection via the needle (8) and a battery (5) present in the first part (2) resulting in that as soon as the contacts attached to the needle (8) are leaving the electric contact (6) with the battery (5) an alarm signal is given from the alarm device (3) by that the battery (5) via the needle (8) is in contact with a processor in the same and gives a potential to the processor to keep back the alarm function but when the head (7) of the needle (8) is leaving the battery (5) this potential drops, which acts such as a locking potential, and the processor starts the alarm in providing an electronic "switch".</p> |
