JPH0440975B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a pest extermination device that is installed in furniture, kitchen equipment, etc. and eliminates pests such as cockroaches.

Conventional structure and problems thereof Conventionally, this type of pest extermination device has been constructed by connecting a battery 3 between a pair of electrodes 1 and 2, as shown in FIG.

In this conventional pest extermination device, when pests, especially cockroaches 4, try to climb over the pair of electrodes 1 and 2 and enter the furniture, when their limbs come into contact with the electrodes 1 and 2, they are electrically charged by the voltage of the battery 3. He was shot and left. This can prevent the cockroach 4 from entering the furniture.

However, the battery 3 has a large internal resistance and a small current capacity. Therefore, even if the limbs of the cockroach 4 touch the pair of electrodes 1 and 2, the electric shock given to the cockroach 4 is small, and the large cockroach 4 may end up entering the furniture even though it receives the electric shock. Ta.

As a countermeasure to this problem, it is possible to increase the voltage in order to increase the current capacity of the battery 3, but this is uneconomical.

OBJECTS OF THE INVENTION The present invention aims to eliminate the above-mentioned conventional drawbacks and provide a pest extermination device that can provide a large electric shock to pests even when a low voltage is applied to a pair of electrodes.

Structure of the Invention In order to achieve the above object, the pest extermination device of the present invention has a pair of electrodes to which a voltage is applied, stacked with an electrically insulating layer interposed therebetween, and at least a portion of the lower electrode is connected to the upper electrode. The structure is not covered.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to FIG.

In FIG. 2, 11 is a piece of furniture, and a wide strip of first electrode 12 is provided at the entrance of this piece of furniture 11. 13 is a narrow electrical insulating layer formed on the first electrode 12, and 14 is a second electrode formed on the electrical insulating layer. Note that the first electrode 12 is exposed on both sides of the second electrode 14. 15 is the first
This is a battery connected between the electrode 12 and the second electrode 14.

In the above configuration, when pests, especially cockroaches 16, try to enter the furniture 11, the first electrode 12
When it comes into contact with the second electrode 14, it receives an electric shock. In this case, since the first electrode 12 and the second electrode 14 are stacked, they constitute a capacitor, and charges are stored in the first electrode 12 and the second electrode 14 in advance. Therefore, cockroach 1
When 6 comes into contact with the first electrode 12 and the second electrode 14, the charges stored in the first electrode 12 and the second electrode 14 are discharged, and a large electric shock can be given to the cockroach 16. For this reason, battery 1
5 does not need to be of high voltage, and can even dispel large cocks 16.

Effects of the Invention As is clear from the above explanation, the pest extermination device of the present invention has a structure in which an electrical insulating layer is interposed between two electrodes, and at least a part of the lower electrode is not covered by the upper electrode. By doing so, a capacitor is formed, and even when using a low-voltage battery, a large electric shock can be given to pests, and it is possible to reliably prevent large pests from invading furniture, etc., and its industrial value is is a great thing.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a conventional pest exterminating device, and FIG. 2 is a sectional view of a pest exterminating device showing an embodiment of the present invention. 12...first electrode, 13...electrical insulating layer, 14
...Second electrode, 15...Battery.

Claims (1)

[Claims] 1. A pest extermination device characterized in that a pair of electrodes to which a voltage is applied are stacked one above the other with an electrical insulating layer in between, and at least a portion of the lower electrode is not covered by the upper electrode.