JPH08305967A - Set for crime prevention device and crime prevention device using the same - Google Patents

Abstract

PURPOSE: To provide a set for crime prevention device for which a dry battery by employing not a type where a current is always supplied, but a type where a current flows only when a criminal trespasses, thereby eliminating the need to lay an electronic conductor around, reducing the cost, and facilitating the construction, and a crime prevention device using the set. CONSTITUTION: In the set for the crime prevention device which consists of a small box, at least a couple of electrodes provided at the bottom part of the small box, a small box 1 for a switch and a magnet 2 formed of magnetic metallic powder charged in the small box, the magnet is fitted to a window and/or the frame parts 3, 4 of an entrance, and the small box 1 for the switch of the set for the crime prevention is fitted to a lower position facing the magnet fitting place of the window and/or the opening/closing tool of the entrance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a security device set and a security device using the same.

[0002]

2. Description of the Related Art Conventionally, various types of crime prevention devices have been proposed. A typical security device is of the type used by a security company, which keeps current flowing from a commercial AC power source to the security device, and when a criminal prys through a window or door, The sensor catches when the flow is cut off and the alarm is activated.

As described above, the type in which the current is constantly applied cannot use a dry battery because of the large amount of electricity. Therefore, in order to install a conventional crime prevention device,
You have to pull the wires around from the power supply. This is clear when you look at buildings that employ the crime prevention system.

Therefore, when an individual installs a conventional type security device in his or her own house, a long and long electric wire of 50 m or more is required, and the electric wire cannot be pulled around in a room. It was a construction that an amateur couldn't do easily because it needed to be wired behind the ceiling.

[0005]

Therefore, an object of the present invention is to make it possible to use a dry battery by adopting a type in which a current flows only when a criminal invades, rather than a type in which a current always flows. Therefore, it is an object to provide a crime prevention device set and a crime prevention device using the same, which does not require pulling around an electric wire, can reduce costs, and can be easily constructed.

[0006]

The first aspect of the present invention is to provide a small box,
The present invention relates to a security device set comprising at least a pair of electrodes provided on the bottom thereof and a switch small box made of magnetic metal powder filled in the small box and a magnet.

In a second aspect of the present invention, the magnet of the security device set is attached to the frame portion of the window and / or doorway, while the lower portion of the window and / or door opening / closing device is opposed to the magnet attachment point. The security device is characterized in that a small box for a switch of the security device set is attached to the position.

In the security device of the present invention, when the opening and closing device for the window and / or the entrance / exit is opened, the magnet located at the position facing the switch small box becomes far away, and the magnetic force of the magnet is filled in the small box. Since it does not reach the magnetic metal powder, the magnetic metal powder stuck to the top of the small box falls to the bottom of the small box and the electrodes can be electrically connected, and the switch of the small box for switches is turned on. It becomes a state. If you connect an alarm device to this switch, it will function as a good security system.

The small box is not particularly limited as long as it is a non-magnetic material. For example, synthetic resin, rubber, wood, ceramics, etc. can be used, and non-magnetic metal can also be used if the inside is coated with insulation.

As the magnetic metal powder, Fe, Co,
Ni, Fe-Co, Fe-Ni, Co-Ni, Co-N
Examples thereof include ferromagnetic metals such as i-Fe or alloys thereof, and iron powder that can be easily obtained can be used. Further, depending on the case, a mixture or alloy with these ferromagnetic metals or other metals containing their alloy components can also be used.

The electrodes may be non-magnetic conductors. For example, Cu, Zn, Ga, Ge, Ag,
It may be a non-magnetic metal such as Cd, In, Sn, Sb or Pb or an alloy thereof, or a conductive metal oxide such as ITO.

The air in the switch box is preferably replaced with an inert gas such as N ₂ or CO _{2 in} order to prevent the magnetic metal powder from being oxidized.

The alarm device may be attached to each security device, but a transmitter is attached to each security device, and one main alarm device or a required number of main alarm devices for receiving the transmission signal to operate is provided. preferable.

The magnet may be an electromagnet, but a permanent magnet is preferable from the standpoint of preventing the electric wire from being pulled around.

The present invention will be described in detail with reference to the drawings. In FIG. 1, the magnet 2 is attached to the window frame 3, and the switch small box 1 is provided below the magnet 2 in the closed window portion 4.
It is a top view which shows a mode that attached. FIG. 2 is a partial sectional view thereof. FIG. 3 is a sectional view taken along line XX of FIG. Since the switch small box 1 is below the magnet 2, the iron powder 6 in the small box 1 is attracted by the magnetic force of the magnet 2 and is present above the small box 1. However, when the window is opened, the magnet 2 separates from the switch small box 1 as shown in FIG. 4, so the magnetic force of the magnet 2 does not reach the iron powder 6, and the iron powder 6 falls to the bottom of the small box 1. Thus, the space between the electrode 5 and the electrode 5'is filled with the iron powder 6, and the current can flow between the electrode 5 and the electrode 5 '. Although not shown in the drawing, the small battery 1
It can be stored in one corner. FIG. 5 shows a circuit when the alarm device 8 is directly connected to the security device of the present invention. Reference numeral 7 is a dry battery, and 10 is a switch for deactivating the security device when the owner opens the window. FIG. 6 shows a case in which a transmitter is provided instead of the alarm device, and such a crime prevention device can be attached to a plurality of doorways, and the alarm device can be attached to another place.

The embodiments of the present invention will be listed below. 1. A crime prevention device set comprising a small box, at least a pair of electrodes provided on the bottom of the small box, a small box for a switch made of magnetic metal powder filled in the small box, and a magnet. 2. The security device set according to item 1, wherein the electrodes are non-magnetic conductors. 3. The crime prevention device set according to item 1 or 2, wherein the small box is made of a non-magnetic material. 4. The security device set according to the above 1, 2, or 3, wherein the air in the switch small box is replaced with an inert gas. 5. The above-mentioned item 1, 2, 3 or 4 in which the magnet is a permanent magnet.
The set for the described security device. 6. The magnet of the set for crime prevention device according to the above 1, 2, 3, 4 or 5 is attached to a frame portion of a window and / or an entrance / exit while facing the magnet attachment point in a window and / or entrance / exit opening / closing tool. In the lower position, the previous item 1, 2,
A security device, wherein the switch small box of the security device set described in 3, 4, or 5 is attached. 7. A crime prevention system comprising the crime prevention device according to the above 6 and an alarm device. 8. A security system comprising the security device according to the above item 6, a transmitter that transmits a radio wave when the security device is switched on, and an alarm device that operates by receiving the radio wave.

[0017]

[Effect] It is possible to use dry batteries by making the type that current flows only when the criminal enters without constantly supplying current, which makes it possible to reduce the cost because it is not necessary to pull the electric wire around. The work can be done easily because there is no need to pull the wires around.

[Brief description of drawings]

FIG. 1 is a plan view showing a state in which a magnet 2 is attached to a window frame 3 and the switch small box 1 is attached to a lower portion of the magnet 2 in a window 4 in a closed state.

FIG. 2 is a partial cross-sectional view thereof.

FIG. 3 is an enlarged cross-sectional view taken along line XX of FIG.

FIG. 4 is an enlarged cross-sectional view taken along line XX of FIG. 2 when a window is opened.

FIG. 5 is a circuit diagram when the alarm device 8 is directly connected to the security device of the present invention.

FIG. 6 shows a circuit diagram when an oscillator is provided instead of the alarm device.

[Explanation of symbols]

 1 Small Box for Switch 2 Magnet 3 Window Frame 4 Window 5 Electrode 5'Electrode 6 Iron Powder 7 Dry Battery 8 Alarm 9 Oscillator 10 Switch

Claims (2)

[Claims] 1. A crime prevention device set comprising a small box, at least a pair of electrodes provided on the bottom of the small box, a small box for switches made of magnetic metal powder filled in the small box, and a magnet. 2. A magnet of the security device set according to claim 1, which is attached to a frame portion of a window and / or an entrance / exit while a lower position of the opening / closing tool of the window and / or entrance is opposed to the magnet attachment point. A security device, wherein the switch small box of the security device set according to claim 1 is attached to the security device.