KR101819715B1 - Display Device for Certifying Genuine - Google Patents

Abstract

The present invention relates to a device to display a genuine product certification using magnetism and, more specifically, relates to a device to display a genuine product certification using magnetism, using a magnetizer to generate a pattern certifying a genuine product on a rubber or paper magnet, and using a magnetic viewer film to visually check the marked pattern, thereby confirming the genuine product at low costs. According to the present invention, the device comprises: a line filter (10) to remove noise from a commercial direct current (DC) power; a rectification circuit part (20) to rectify a DC power outputted from the line filter (10); an input line (L1) to connect a + output terminal (21) of the rectification circuit part (20) to an input terminal of a magnetizing coil (30); first and second switches (SW1, SW2) installed on the input line (L1); a condenser (C1) connected between the first and second switches (SW1, SW2) in parallel; a sensor (50) to detect that the rubber or paper magnetic is supplied to the magnetizing coil (30); and a control unit (40) receiving a signal of the sensor (50) to control on/off of the first and second switches (SW1, SW2) in accordance with the signal of the sensor (50). Thus, charging/discharging of the condenser (C1) is controlled and a current of the condenser is supplied to the magnetizing coil (30) during discharging of the condenser (C1), thereby allowing the magnetizing coil (30) to mark the pattern on the rubber or paper magnet.

Description

[0002] Display Device for Certifying Genuine [

The present invention relates to an activation display device using a magnetic force, and more particularly, to a display device for authenticating a genuine article using a rubber magnet or a paper magnet by using magnetism, and then, by using a magnet viewer film, And to verify the authenticity of the product with low cost.

In recent years, there has been a tendency that a counterfeit or unauthorized outflow of branded goods (a route separate from a regular route, for example, a place where a sales permission is not obtained at a factory that has been entrusted with manufacturing) is increased. Inspection is carried out at customs etc. in order to control it, but in practice, it is difficult for customs officers to detect counterfeit goods due to the upgrading of counterfeit goods, and it is practically impossible to detect illegally discharged products because they are of the same quality and authenticity.

In order to alleviate the burden of the inspection, IC chip is built in the genuine article in advance and the information contained in the IC chip such as the manufacturer, the producing country, etc. is read by the reader in the customs etc., and accordingly, And an inspection system for allowing an inspection product that does not contain an IC chip to be determined as a counterfeit product is known.

In addition, Patent Document 1 discloses a technique of embedding a ferromagnetic substance in a safety protection sheet such as securities, applying an alternating magnetic field to a safety protection sheet, detecting a change in the magnetic flux density caused thereby and obtaining a frequency spectrum corresponding to the magnetic flux density change, Discloses an authenticity determination apparatus that determines whether or not the safety protection sheet is authentic according to whether or not the frequency spectrum and the previously prepared frequency spectrum coincide with each other.

In Patent Document 2, a crystalline metal fiber having a circular cross section formed by melt-spinning an alloy containing 80% or more of the weight of iron is attached to an object to be monitored, and the object is wound around an excitation coil and a detection coil There is disclosed a surveillance system for detecting a high frequency component of an output signal induced in a detection coil by abrupt magnetization reversal of a metal fiber which is generated by passing through a built-in object detection unit.

In Patent Document 3, a mold member display area and a marker area (areas corresponding to cloth) for displaying a plurality of mold members are displayed on a display device, and each mold member in the mold member display area is moved to the marker area So that the die insertion is carried out.

Patent Document 1: JP-A-8-199498

Patent Document 2: JP-A-3-198195

Patent Document 3: Japanese Patent Application Laid-Open No. 8-221468

However, since the IC chip is expensive, it is reflected in the price of the product, and at the same time, the inspection system to be used is also inevitably complicated.

Accordingly, it is an object of the present invention to provide an inspection system which can use relatively inexpensive materials as materials to be attached to an article, and can easily carry out inspection.

As means for achieving the above object,

The present invention eliminates noises of the commercial AC power in the line filter 10 and rectifies the AC power outputted from the line filter 10 in the rectifying circuit section 20 and controls the + output terminal 21 of the rectifying circuit section 20 The input terminal of the magnetizing coil 30 is connected by the input line L1 and the first switch SW1 and the second switch SW2 are mounted on the input line L1 and the first switch SW1 and the second switch SW2 are connected, A capacitor C1 is connected in parallel between the switches SW2 so that the sensor 50 senses that the rubber magnet or the paper magnet is supplied to the magnetizing coil 30 and the signal of the sensor 50 is transmitted to the control unit 40, And the control unit 40 controls the ON / OFF of the first and second switches SW1 and SW2 by the signal of the sensor 50 so that the charge and discharge of the capacitor C1 is controlled, C1), a capacitor current is applied to the magnetizing coil 30 at the time of discharging, and the magnetizing coil 30 is used to engrave a pattern on a rubber magnet or a paper magnet .

An alarm signal automatic output unit 1000 for outputting an alarm signal under the control of the control unit when no signal is inputted from the current sensing unit 60 in a state where the first switch SW1 is turned off It is characterized by the constitution.

In addition, the alarm signal automatic output unit 1000 includes a power supply unit 1110 for applying power to the alarm signal output unit 1000 by itself; A first relay switch (RY1) provided on one side of an output terminal of the power source unit for switching a power source output from the power source unit; A second relay switch (RY2) provided on the other end of the output terminal of the power source unit for switching a power source unit output from the power source unit; A third relay switch RY3 coupled to an output terminal of the second relay switch and generating a magnetic force when the second relay switch is switched; A first circuit connection switch (sw1) for performing a function of energizing the circuit while the iron wire is pulled by the third relay switch; A second alarm signal output power switch (not shown) that is operable to supply power to the alarm signal output control unit 1140 and to display an alarm signal through the alarm signal display unit 1150 when the iron wire is pulled by the third relay switch sw2); The second relay switch is switched to induce the third relay switch to be switched so that the first circuit connection switch and the second alarm signal output power supply switch are switched and then the second relay switch is turned off, An alarm for switching the relay switch and for continuing the switching state of the first circuit connection switch and the second alarm signal output power switch configured to be interlocked with the first relay switch at the same time, A control unit 1120; A circuit-operating iron piece (1131) which contacts the first circuit connecting switch (sw1) to relay power supplied from the first relay switch to continue the flow of power; And an alarm signal output control unit power supply unit for connecting the power supply to the alarm signal output control unit 1140 and guiding the alarm device to operate when the circuit breaker 1131 is turned on, A steel wire piece 1132; The first circuit connection switch sw1 and the circuit operation wire 1131 are connected to each other at the lower end of the circuit operation steel plate 1131 and at the lower end thereof in the form of a bar magnet having an S pole, First self-sustaining means 1133 for guiding the electric power to be maintained in the off-state at all times; And the first magnetic holding means 1133 having an S pole at the lower end and a first magnetic holding means 1133 at the upper end of the first circuit connecting switch sw1, The operating piece 1131 is pulled up when the third relay switch is actuated so that the S pole constituting the upper part of the body and the first magnetic holding means 1133 The N pole constituting the lower portion of the body and the S pole constituting the lower portion of the body of the first magnetic holding means 1133 are located close to each other, When the first circuit connecting switch sw1 is magnetically coupled to the holding means 1133 and the first circuit connecting switch sw1 is switched, the state of attachment of the circuit-operating ferrule 1131 continues even if the operation of the third relay switch is stopped, And the second relay switch is connected to the first relay switch and the third relay switch, the first relay switch is connected to the first relay switch, Maintenance means 1134; The first magnetic holding means 1133 is disposed at a lower end of the circuit board 1131 at a predetermined distance from the first magnetic holding means 1133. The lower end of the first magnetic holding means 1133 is in the form of a bar magnet having an S pole, The circuit breaker 1131 is lifted from the first circuit connection switch sw1 to maintain the circuit breaker state when the third relay switch is not operated and the circuit breaker 1131 is lowered Auxiliary magnetic holding means 1133a for holding the ON state of the first circuit connecting switch sw1; And the second magnetic holding means and the first magnetic holding means are magnetically coupled to each other so that they are not directly coupled to each other but are held in a constant gap while being magnetically coupled to each other A spacing agent 1134a for inducing the first self-sustaining means and the second self-sustaining means to naturally separate from each other at the time of disassembly; And a control unit for controlling the operation of the alarm signal display unit when the user operates the alarm unit to interrupt the operation of the alarm signal, And a manual operation switch 1135 for stopping the output of the alarm signal so that the alarm signal is no longer output.

As described above, according to the present invention, a pattern for authenticating a genuine article is generated by using a magnet on a rubber magnet or a paper magnet, and then the engraved pattern can be visually recognized using a magnet viewer film, It is effective.

1 is a block diagram of an activation device using magnetic force applied to the present invention.
FIG. 2 is a diagram showing an embodiment of a magnetization-based activation device applied to the present invention. FIG.
3 is a block diagram for automatically outputting an alarm signal according to the present invention;
4 is a circuit diagram of an automatic alarm signal output unit according to the present invention;
5 is an enlarged view of the main part of Fig.
6 is a diagram illustrating an example of the operation of the alarm signal automatic circuit section of the present invention.
7 is a conceptual diagram for confirming activation using a magnet viewer film.

The operation principle of the preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings and description. It should be understood, however, that the drawings and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention, and are not to be construed as limiting the present invention.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The terms used below are defined in consideration of the functions of the present invention, which may vary depending on the user, intention or custom of the operator. Therefore, the definition should be based on the contents throughout the present invention.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. The configuration is omitted as much as possible, and a functional configuration that should be additionally provided for the present invention is mainly described.

Those skilled in the art will readily understand the functions of the components that have been used in the prior art among the functional configurations that are not shown in the following description, The relationship between the elements and the components added for the present invention will also be clearly understood.

In order to efficiently explain the essential technical features of the present invention, the following embodiments properly modify the terms so that those skilled in the art can clearly understand the present invention, It is by no means limited.

As a result, the technical idea of the present invention is determined by the claims, and the following embodiments are merely illustrative of the technical idea of the present invention in order to efficiently explain the technical idea of the present invention to a person having ordinary skill in the art to which the present invention belongs. .

1 is a block diagram of an activation device using magnetic force applied to the present invention.

FIG. 2 is a diagram showing an embodiment of a magnetization-based activation device applied to the present invention. FIG.

3 is a block diagram for automatically outputting an alarm signal according to the present invention;

4 is a circuit diagram of an automatic alarm signal output unit according to the present invention;

5 is an enlarged view of the main part of Fig.

6 is a diagram illustrating an example of the operation of the alarm signal automatic circuit section of the present invention.

7 is a conceptual diagram for confirming activation of a product using a magnet viewer film,

Referring to FIG. 1, the apparatus for activating magnetic force according to the present invention removes noise from a commercial AC power source in a line filter 10, and supplies AC power output from a line filter 10 to a rectifying circuit unit 20, And the positive output terminal 21 of the rectifying circuit section 20 and the input terminal of the magnetizing coil 30 are connected by the input line L1 and the input line L1 is connected to the first switch SW1, A condenser C1 is connected in parallel between the first switch SW1 and the second switch SW2 and a rubber magnet or paper magnet is supplied to the magnetizing coil 30 by the sensor 50 And the signal of the sensor 50 is inputted to the control unit 40 so that the control unit 40 controls the ON and OFF of the first and second switches SW1 and SW2 by the signal of the sensor 50 The charging and discharging of the capacitor C1 is controlled and the current of the capacitor is applied to the magnetizing coil 30 when the capacitor C1 discharges, Is a grooved pattern on the rubber magnet or magnet paper.

As shown in FIG. 7, the pattern engraved using the activation device can be more easily confirmed by using a magnet viewer film. In the present invention, a positive magnet is inserted into a rubber magnet or a paper magnet, It was observed through the film to make it easy to identify the engraved letters.

Referring to FIG. 2, the apparatus for activating the magnetic force includes a current sensing (not shown) for sensing the instantaneous current flowing to the ground line L2 connected to the output terminal of the magnetizing coil 30 to sense the operation of the magnetizing coil 30, (60).

The control unit 40 controls the operation of the magnetizing coil 30 to the outside through the remote output terminal 70 if no signal is inputted from the current sensing unit 60 in a state where the first switch SW1 is turned off, An operation error is output.

The magnetically activated device according to the present invention configured as described above operates as follows.

The sensor 50 is driven by the magnetizing coil 30 in the standby state in which the first switch SW1 is in the normally ON state and the second switch SW2 is in the normally OFF state so that the charging of the capacitor C1 is maintained, The control unit 40 turns off the first switch SW1 and turns on the second switch SW2 so that the capacitor is turned on by the control unit 40. When the control unit 40 detects the supply of the paper magnet, C1 flows into the magnetizing coil 30, thereby engraving the magnet on the rubber magnet or the paper magnet with the magnetizing coil 30. [

When the signal of the current sensing means 60 is inputted to the control unit 40 by the operation of the magnetizing coil 30, the first switch SW1 is turned on and the second switch SW2 is turned on by the control unit 40, Is turned off.

On the other hand, if the current is not provided as a result of checking through the current sensing unit 60, the control unit 40 alerts the error condition through the alarm signal automatic output unit 1000 and prompts the user to solve the error condition within a short time. The automatic alarm signal output unit 1000 includes a power supply unit 1110, a first relay switch RY1, a second relay switch RY2, a third relay switch RY3, a first circuit connection switch a second circuit connection switch sw2, and an alarm control unit 1120. [

The power source unit 1110 applies power to its own power source.

The first relay switch RY1 is provided on one side of the output terminal of the power supply unit to switch the power output from the power supply unit.

The second relay switch RY2 is provided on the other side of the output terminal of the power source unit to switch the power source unit output from the power source unit.

The third relay switch RY3 is coupled to the output terminal of the second relay switch and generates a magnetic force when the second relay switch is switched.

The first circuit connection switch sw1 performs a function of energizing the circuit by pulling the iron piece by the third relay switch.

The second alarm signal output power switch sw2 is supplied with power by the third relay switch so that the alarm signal output control unit 1140 is powered on to induce an alarm signal to be displayed through the alarm signal display unit 1150 It plays a role.

The alarm control unit 1120 switches the second relay switch to induce the third relay switch to be switched so that the first circuit connection switch and the second alarm signal output power switch are switched, The third relay switch is turned off and the first circuit connection switch configured to be interlocked with the first relay switch and the power switch for outputting the second alarm signal are continuously maintained to switch the alarm state It plays a role to sustain.

The present invention is also characterized in that it comprises a circuit element for operation 1131, an alarm piece 1132 for connecting an alarm signal operation control unit, a first magnetic holding means 1133, a second magnetic holding means 1134, Means 1133a, a gap 1134a, and a manual operation switch 1135. As shown in Fig.

The circuit-operating piece 1131 contacts the first circuit connection switch sw1 to relay the power supplied from the first relay switch to continue the flow of power.

The alarm signal output control unit power supply connection piece 1132 is designed to operate in conjunction with the circuit breaker 1131. When the circuit breaker 1131 is turned on, the alarm signal output control unit 1140 is powered Thereby inducing the alarm device to operate.

The first magnetic holding means 1133 is provided at the lower end of the circuit operation steel plate 1131 and has a lower end in the form of a bar magnet having an S pole, sw1 and the circuit-operating iron piece 1131 are always kept in the off-state.

The second magnetic holding means 1134 is provided on the upper portion of the first circuit connecting switch sw1 and has a bar magnet shape having an S pole at the upper end and a first magnet holding The circuit breaker 1133 is pushed to push the circuit breaker 1131 up to maintain the electrically turned off state and the circuit breaker 1131 is pulled up when the third relay switch is actuated, The N pole constituting the upper part of the body of the first magnetic holding means 1133 and the N pole constituting the lower portion of the body and the S pole constituting the lower portion of the body of the first magnetic holding means 1133, When the first relay switch is magnetically coupled to the first magnetic holding means 1133 while the first relay switch is in the close position and the first relay switch is turned on at the same time the operation of the third relay switch is stopped, State And then maintains the power supply state through the first relay switch. At this time, when the circuit breaker iron piece is operated by the operation of the third relay switch, the iron piece for connecting the power supply of the alarm signal output controller is automatically operated so that the alarm signal is outputted to the outside.

The auxiliary magnetic holding means 1133a is installed at the lower end of the circuit operation steel plate 1131 in a state of being spaced apart from the first magnetic holding means 1133 by a predetermined distance and has a lower end in the form of a bar magnet having an S pole, When the third relay switch is not operated, the circuit breaker 1131 is lifted from the first circuit connection switch sw1 to keep the circuit in a disconnected state while the third relay switch is in operation, The operating wire 1131 is lowered to maintain the ON state of the first circuit connecting switch sw1.

Particularly, the auxiliary magnetic holding means 1133a affects the second magnetic holding means 1134 even if the first magnetic holding means 1133 is blinded, so that the off state of the first circuit connecting switch during the third relay switch non- And is magnetically coupled with the second magnetic holding means during the operation of the third relay switch to maintain the ON state of the first circuit connecting switch sw1.

The gap 1134a is provided so as to surround the periphery of the N pole of the second magnetic holding means 1134 and the second magnetic holding means and the first magnetic holding means are not directly coupled to each other when magnetically coupled, So that the first magnetic holding means and the second magnetic holding means can be separated more naturally from each other by the action of the spacing agent at the time of disassembly. If the spacing agent is not present, the body of the first self-holding means and the body of the second self-holding means are directly attached to each other, so that mutual separation becomes difficult later. Accordingly, in the present invention, further spacers are provided so that the first magnetic holding means and the second magnetic holding means can be easily separated.

The reason why the spacing agent is provided only around the N pole of the second magnetic holding means is that the first magnetic holding means and the second magnetic holding means must be separated from each other when the relay switch is not operated, Pole and the S-pole of the second magnetic holding means are opposed to each other and the separated state can be easily maintained. If the spacing agent is wrapped to the S-pole of the second magnetic holding means, the strength of the S-poles of the first magnetic holding means and the second magnetic holding means is weakened by the interference of the spacers when the third relay switch is not operated The maintenance of the separation state may become unstable.

Accordingly, in the present invention, the spacers are provided only on the N pole of the second magnetic holding means to facilitate the separation of the first magnetic holding means and the second magnetic holding means, and when magnetic coupling is performed, So that the magnetically coupled state can be easily maintained. In practice, when the first magnetic holding means and the second magnetic holding means are coupled to each other, the N pole of the first magnetic holding means and the S pole of the second magnetic holding means come close to each other and are strongly magnetically coupled Even if the relay switch is turned off, the falling state of the circuit breaker 1131 is maintained, so that the ON state of the first circuit connecting switch sw1 can be maintained.

The manual operation switch 1135 is connected to a wire for circuit operation and a wire for connecting an alarm signal output control unit to the power supply. When the user operates the automatic operation switch 1135 to stop the operation of the alarm signal in a state that the alarm signal output unit is turned off, The signal output control unit turns off the iron wire for power connection so that the operation of the alarm signal display unit is stopped so that the alarm signal is no longer outputted.

Hereinafter, the operation of the alarm signal automatic output unit 1000 will be described.

First, a control relation for outputting an alarm signal will be described. In the control unit, the controller applies power to the second relay switch to operate the third relay switch. Accordingly, the first circuit connection switch sw1 and the alarm signal output power switch sw2 are turned on by the operation of the third relay switch, and the alarm signal output control unit 1140 is powered on and the alarm signal is displayed.

When the first circuit connection switch (sw1) is activated, the control unit interrupts the operation of the second relay switch to cut off the operation of the third relay switch, and simultaneously operates the first relay switch.

On the other hand, if the operator turns off the first circuit connecting switch and the alarm signal output power switch in the middle of the output of the alarm signal, the control unit recognizes the first circuit connecting switch and the alarm signal output power switch. Then, the second relay switch is operated to operate the third relay switch, The alarm signal display unit 1150 can be operated continuously by returning the power to the alarm signal control unit 1140 while maintaining the closed circuit while moving the alarm signal display unit 1140.

That is, if the alarm factor is not solved, the present invention continuously outputs a warning sound to guide the user to solve the alarm factor.

In other words, if the control unit applies the switching signal to the second relay switch and the first relay switch, the power supply is returned again and the alarm signal is automatically output. Accordingly, even if the alarm signal is cut off It is possible to induce the operator to reliably solve the cause of the alarm signal.

If it is determined that the output of the alarm signal is no longer needed by the control unit, the power supply signal is no longer applied to the first relay switch and the second relay switch. In this case, the user manually operates the manual switch 1135 to turn off the alarm signal .

10: Line filter
20:
30: magnetizing coil
40:
50: Sensor
60: Current sensing means
1000: Alarm signal automatic output section

Claims (3)

The AC power outputted from the line filter 10 is rectified by the rectifying circuit section 20 and the positive output terminal 21 of the rectifying circuit section 20 and the output terminal 21 of the rectifying circuit section 20 30 are connected by an input line L1 and the first switch SW1 and the second switch SW2 are mounted on the input line L1 and the first switch SW1 and the second switch SW2 The sensor 50 senses that the rubber magnet or the paper magnet is supplied to the magnetizing coil 30 and the signal of the sensor 50 is input to the control unit 40 The control unit 40 controls the on / off of the first and second switches SW1 and SW2 by the signal of the sensor 50 so that the charge and discharge of the capacitor C1 is controlled and the discharge of the capacitor C1 A current of a capacitor is applied to the magnetizing coil 30 so as to engrave a pattern on the rubber magnet or paper magnet with the magnetizing coil 30;

And an alarm signal automatic output unit 1000 for outputting an alarm signal under the control of the control unit when no signal is inputted from the current sensing unit 60 in a state where the first switch SW1 is turned off ;

The alarm signal automatic output unit 1000,
A power supply unit 1110 for applying a power supply by its own power supply;
A first relay switch (RY1) provided on one side of an output terminal of the power source unit for switching a power source output from the power source unit;
A second relay switch (RY2) provided on the other end of the output terminal of the power source unit for switching a power source unit output from the power source unit;
A third relay switch RY3 coupled to an output terminal of the second relay switch and generating a magnetic force when the second relay switch is switched;
A first circuit connection switch (sw1) for performing a function of energizing the circuit while the iron wire is pulled by the third relay switch;
A second alarm signal output power switch (not shown) that is operable to supply power to the alarm signal output control unit 1140 and to display an alarm signal through the alarm signal display unit 1150 when the iron wire is pulled by the third relay switch sw2);
The second relay switch is switched to induce the third relay switch to be switched so that the first circuit connection switch and the second alarm signal output power supply switch are switched and then the second relay switch is turned off, An alarm for switching the relay switch and for continuing the switching state of the first circuit connection switch and the second alarm signal output power switch configured to be interlocked with the first relay switch at the same time, A control unit 1120;
A circuit-operating iron piece (1131) which contacts the first circuit connecting switch (sw1) to relay power supplied from the first relay switch to continue the flow of power;
And an alarm signal output control unit power supply unit for connecting the power supply to the alarm signal output control unit 1140 and guiding the alarm device to operate when the circuit breaker 1131 is turned on, A steel wire piece 1132;
The first circuit connection switch sw1 and the circuit operation wire 1131 are connected to each other at the lower end of the circuit operation steel plate 1131 and at the lower end thereof in the form of a bar magnet having an S pole, First self-sustaining means 1133 for guiding the electric power to be maintained in the off-state at all times;
And the first magnetic holding means 1133 having an S pole at the lower end and a first magnetic holding means 1133 at the upper end of the first circuit connecting switch sw1, The operating piece 1131 is pulled up when the third relay switch is actuated so that the S pole constituting the upper part of the body and the first magnetic holding means 1133 The N pole constituting the lower portion of the body and the S pole constituting the lower portion of the body of the first magnetic holding means 1133 are located close to each other, When the first circuit connecting switch sw1 is magnetically coupled to the holding means 1133 and the first circuit connecting switch sw1 is switched, the state of attachment of the circuit-operating ferrule 1131 continues even if the operation of the third relay switch is stopped, And the second relay switch is connected to the first relay switch and the third relay switch, the first relay switch is connected to the first relay switch, Maintenance means 1134;
The first magnetic holding means 1133 is disposed at a lower end of the circuit board 1131 at a predetermined distance from the first magnetic holding means 1133. The lower end of the first magnetic holding means 1133 is in the form of a bar magnet having an S pole, The circuit breaker 1131 is lifted from the first circuit connection switch sw1 to maintain the circuit breaker state when the third relay switch is not operated and the circuit breaker 1131 is lowered Auxiliary magnetic holding means 1133a for holding the ON state of the first circuit connecting switch sw1;
And the second magnetic holding means and the first magnetic holding means are magnetically coupled to each other so that they are not directly coupled to each other but are held in a constant gap while being magnetically coupled to each other A spacing agent 1134a for inducing the first self-sustaining means and the second self-sustaining means to naturally separate from each other at the time of disassembly;
And a control unit for controlling the operation of the alarm signal display unit when the user operates the alarm unit to interrupt the operation of the alarm signal, And a manual operation switch (1135) for stopping the output of the alarm signal to stop the output of the alarm signal so that the alarm signal is no longer output. delete delete

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