JPH11283130A - Burglar preventing tag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide burglar preventing tagS which can be stored mutually closely without issuing any erroneous alarm. SOLUTION: When a knob 23a of a slide button 23 is located on the side of a fourth conduction spring 34, one end of a conductive plate 28 is isolated from a third conduction spring 33. When contacts abutting the third and fourth conduction springs 33 and 34 are not conducted, an IC detects the opening/ closing state of a sensor circuit provided with a sensor button 22 and controls the generation of a warning sound due to a buzzer based on the result. When the knob 23a of the slide button 23 is moved to the side of the third conduction spring 33, on the other hand, both the ends of the conductive plate 28 are in contact with the third and fourth conduction springs 33 and 34, and when it is in conduction state between the contacts on which the third and fourth conduction springs 33 and 34 are abutted, the IC does not generate any warning sound through the buzzer in spite of whether the sensor button 22 is operated or not.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-propelled alarm which is attached to an object such as clothing and footwear and which, when detached from the object without a predetermined operation, prevents the object from being stolen. It relates to a ring-type anti-theft tag.

[0002]

2. Description of the Related Art FIGS. 7 and 8 are explanatory views for explaining a use state of a conventional self-sounding anti-theft tag.
Is a strip-shaped anti-theft tag (hereinafter, also simply referred to as a tag). On the front of the tag TG, a button 42 of a button switch, which is a normally open contact, protrudes. The tag TG contacts the front face of the anti-theft object T such as a box and a case with the front face thereof. By doing so, the button 42 is pushed into the tag TG to close the circuit, and in this state, the button 42 is attached to the anti-theft object T with an attaching material such as an adhesive tape, a double-sided tape, or a synthetic resin wrap.

[0003] The tag TG includes an antenna for receiving a signal transmitted from a transmitter, a buzzer, a battery, and the like. The transmitter is configured to transmit a signal of a strength that can be received by the tag TG into a predetermined area, and the transmitter is arranged at a gate installed at an entrance. When the anti-theft object T attached with the tag TG approaches the gate and the tag TG receives a signal transmitted from the transmitter, the tag TG activates a buzzer to emit an alarm sound, and the anti-theft object T is activated. Prevent theft.

When the tag TG is removed from the anti-theft object T by removing the attachment material, the button 42 protrudes to open the circuit, so that the tag TG detects this and activates a buzzer to emit an alarm sound.

FIG. 9 is a schematic side view showing the configuration of a lever switch provided on another conventional anti-theft tag.
Reference numeral 51 denotes a case having a substantially square shape in side view. Inside the case 51, there is provided a hollow portion 52 having a trapezoidal shape whose long side is downward in a rectangular shape, and an opening communicating with the hollow portion 52 is opened on the upper surface of the case 51. . In the vicinity of the opening in the hollow portion 52, a conductive spring 55 in which a conductive wire is wound once is disposed, and the conductive spring 55 is supported by a support shaft 53 fitted in the conductive spring 55.

The conductive spring 55 has one end opened at approximately 180 ° and is curved in accordance with the wall surface of the cavity 52, and the other end thereof is
The cavity 52 is curved so as to follow the wall surface of the cavity 52, and the position in the vicinity of the front end and the position of the front end on the one end side substantially match. Triangular roof-shaped lever 57 for conductive spring 55
However, the end is protruded from the opening of the case 51 and connected, and the lever 57 is supported by the conductive spring 55 so as to be swingable around the support shaft 53.

On both sides of the support shaft 53, the heads of two comma-shaped electrodes 58, 58 protrude from both side surfaces of the cavity 52, and the heads of both electrodes 58, 58 are connected to both ends of a conductive spring 55. Parts are touching. The legs of the electrodes 58, 58 extend out of the case 51, and are respectively connected to contacts that communicate with a control device that controls the operation of the buzzer.

Such a lever switch functions as a normally closed contact, and the lever 57 comes into contact with an object to be stolen, and
When it is pushed into the inside, both ends of the conductive spring 55
If the anti-theft tag is detached from the anti-theft object when it is opened apart from the anti-theft object 58, the lever 57 projects and closes, so the above-described control device detects this and activates the buzzer to emit an alarm sound. . On the other hand, even when the lever 57 slightly protrudes from the cavity 52 due to a decrease in the mounting strength or unevenness of the mounting surface, an appropriate distance is provided between both ends of the conduction spring 55 and the corresponding electrodes 58, 58. Since it is present, it does not close, preventing the occurrence of false alarms.

[0009]

In a conventional anti-theft tag provided with such a button switch or lever switch, when a plurality of anti-theft tags are packed in a box in order to transport or store them, a button is required. When a switch or a lever switch comes into contact with an adjacent anti-theft tag and each anti-theft tag is taken out of the box, the button switch or the lever switch protrudes, and a false alarm occurs. In order to prevent this, the inside of the box is divided into a plurality of areas by a plurality of partition plates, and an anti-theft tag is provided in each area.
It was stored one by one. Therefore, there is a problem that the number of anti-theft tags that can be stored in one box is small. Also,
There was also a problem that the cost required for the storage box was high.

On the other hand, when the anti-theft tag removed from the box is mounted on the mounting table to be attached to the anti-theft object, the button switch or lever switch is pushed into the anti-theft tag again for some reason and then protrudes again. hand,
There is a risk that a false alarm will occur.

The present invention has been made in view of the above circumstances, and an object of the present invention is to detect that a case has been detached from an anti-theft object based on the state of a sensing unit provided on one surface of the case. When the sensor detects, when the alarm is activated, a switch for stopping the alarm is provided inside the case regardless of the detection result of the sensor, and the switch is provided on the one surface of the case. An object of the present invention is to provide an anti-theft tag that can be stored in close contact with each other without generating a false alarm by having a configuration in which a hole for operating the tag is opened.

[0012]

The anti-theft tag according to the first aspect of the present invention is provided with a sensor for detecting the attachment / detachment of the case to / from the anti-theft object on one surface of the case. Based on the state, when it is detected that the case has been detached from the anti-theft object, in the anti-theft tag adapted to activate an alarm, inside the case, regardless of the detection result of the sensor A switch for stopping the alarm is provided, and a hole for operating the switch is provided on the one surface of the case.

By operating the switch, the alarm device is stopped irrespective of the state of the sensing unit, for example, the position of a sensor button or a sensor lever protruding freely from one surface of the case. Thus, it is possible to prevent false alarms from occurring and to store a plurality of anti-theft tags in close contact with each other. On the other hand, the anti-theft tag is attached to the anti-theft object with the sensing unit facing the anti-theft object. Since the hole for operating the alarm stop switch is opened on the same surface of the outer box as the surface of the detection switch provided on the detection switch so that it can freely enter and exit,
When the anti-theft tag is attached to the anti-theft object, the alarm stop switch cannot be operated, so that the safety is high.

[0014] In the anti-theft tag according to the second invention, in the first invention, the switch is a sliding member that slides between a first position for stopping the alarm and a second position for releasing the stop of the alarm. The case is provided with another hole on the other surface except the one surface, and the sliding member has the other hole when the sliding member is slid to the first position. Is provided with a convex portion which enters the inside of the.

When the sliding member of the switch is slid to the first position for stopping the alarm, the protrusion provided on the sliding member is
Enter inside the hole opened in the case. This hole is formed on a surface of the case different from the surface on which the hole for operating the switch is opened, and while the sliding member is slid to the first position for releasing the stop of the alarm, the theft is performed. When the anti-theft tag is attached to the anti-theft object, the sliding member is slid to the second position where the stop of the alarm is released by pushing back the convex portion that has entered the hole with a pin or a needle.

According to a third aspect of the invention, in the antitheft tag according to the first or second aspect, the sensor and the switch are provided in a single box.

Since the sensor and the switch are provided in one box, the assembling efficiency of the anti-theft tag is high.

[0018]

Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is an external perspective view showing an anti-theft tag according to the present invention, and FIG. 2 is an exploded perspective view of the anti-theft tag shown in FIG. The strip-shaped outer box 1
The pair of front side box members 2 and the rear side box member 3 are formed by ultrasonic bonding. A printed wiring board 10, a button switch 20, and a button battery 5 are stored in the front box member 2 and the rear box member 3, and the button battery 5 is fitted into a circular cover member 4 containing a buzzer. I have.

On the front surface of the substrate 10, a resonance device 12 for receiving a signal of a predetermined frequency, and a buzzer generates an alarm sound based on a signal received by the resonance device 12 and an opening / closing signal given from the button switch 20. And the like for controlling the IC. Further, the substrate 10 is provided with four contacts 14, 14, 14, 14 and the like connected to the button switch 20.

The button switch 20 has a column-shaped sensor button 22 for detecting the attachment / detachment state of the anti-theft tag to the anti-theft object at the center of the front of the rectangular case 21 so as to be able to enter and exit freely. A slide button 23 for disabling the detection operation of the sensor button 22 is provided at a position distant from the sensor button 22 so as to be slidable in the longitudinal direction of the outer box 1.

On the back surface of the case 21, one of a pair of electrodes corresponding to the slide button 23 and a pair of electrodes corresponding to the sensor button 22 is provided, and the other corresponding to the sensor button 22 is provided. These electrodes extend on the back surface of the case 21. Each electrode comes into contact with each of the contacts 14, 14, 14, 14 provided on the substrate 10.
On the upper surface of the case 21, two cylindrical portions 26, 26 are erected at an appropriate distance from each other, and the two cylindrical portions 26, 26 are connected to the outer box 1 (FIG. 1).
See above). Of the two cylindrical portions 26, 26,
The cylinder portion 26 near the slide button 23 has a communication hole communicating with the inside of the case 21, and the cylinder portion 26 separated from the slide button 23 is solid.

In the vicinity of the upper end of the front box member 2, a circular first hole through which the sensor button 22 of the button switch 20 passes is provided.
2a, and a rectangular second for operating the slide button 23
A hole 2b is formed, and the periphery of the second hole 2b is tapered such that the thickness of the front side box member 2 becomes thinner toward the second hole 2b. In addition, a circular third hole 2c in which the cover member 4 described above is fitted is opened substantially at the center of the front box member 2, and an alarm sound is emitted near the lower end of the front box member 2. A window 2d is provided.

As shown in FIG. 1, the sensor button 22 of the button switch 20 is dimensioned to penetrate the first hole 2a of the front box member 2 and protrude from the front box member 2 by an appropriate length. , The slide button 23 is a second hole of the front side box member 2.
2b, and has a height that does not protrude from the front box member 2. This prevents a gap from being formed between the front side box member 2 and the anti-theft object when the tag is attached to the anti-theft object.

Next, the configuration of the button switch 20 will be described in detail. FIGS. 3, 4, and 5 are an enlarged plan sectional view, an enlarged front view, and an enlarged rear view of the button switch 20 shown in FIG. In these figures, parts corresponding to the parts shown in FIG. 2 are denoted by the same reference numerals, and description thereof is omitted. Case
On the front of 21, a sensor button 22 and a slide button 23
The first button hole 24 and the second button hole 25 are opened according to the above, and the sensor button 22 and the slide button 23 are moved out of the case 21 from the corresponding first button hole 24 and the second button hole 25 by a predetermined length. It is projected.

An annularly formed one end of a first conductive spring 31 is fixed around the first button hole 24 on the inner surface of the case 21, and the other end of the first conductive spring 31 is connected to the lower surface of the case 21. It penetrates and extends to the back surface, and its end is bent in a L-shape. The sensor button 22 includes a column-shaped main body 22a penetrating the first button hole 24 and a leg 22b having a diameter smaller than the diameter of the main body 22a coaxially extending therefrom. A flange 22c having a diameter larger than that of the first button hole 24 is provided on the surface, and one end of a conductive sensor coil spring 30 is provided on the leg 22b and the flange 22c of the sensor button 22. It is elastically fitted to the outside so as to be in contact with one conductive spring 31.

The sensor coil spring 30 has a small diameter portion 30c externally fitted to the leg portion 22b of the sensor button 22, and a large diameter portion 30a externally fitted to the flange portion 22c of the sensor button 22. Is extended, and when the flange portion 22c of the sensor button 22 is in contact with the inner surface of the case 21, the large diameter portion 30a of the sensor coil spring 30 is shortened.

A receiving portion 27 for receiving the sensor coil spring 30 protrudes from a portion of the rear surface of the case 21 facing the first button hole 24, and an annular groove 27a is provided in the receiving portion 27. One end of the second conductive spring 32, which is formed in an annular shape, is fitted into the groove 27a. The other end of the second conductive spring 32 extends through the receiving portion 27 and extends to the back of the case 21. It is. The small diameter portion 30c of the sensor coil spring 30 is provided in the groove 27a of the receiving portion 27.
The end on the side is fitted, and the sensor coil spring 30 is in contact with the second conduction spring 32 by its elastic force.

A third conductive spring 33 and a fourth conductive spring 34, which are formed in a substantially rectangular shape, are provided on the back of the case 21 so that their bent portions slightly protrude from the back of the case 21. A predetermined distance is provided in the sliding direction of 23, and one ends of the third conductive spring 33 and the fourth conductive spring 34 extend into the case 21. The slide button 23 is a square pillar base 23
b, a knob 23a protrudes from the front of the base 23b, and a rectangular conductive plate 28 having a dimension slightly longer than the length between the third conductive spring 33 and the fourth conductive spring 34 is provided on the back of the base 23b. The conductive spring 33 and the fourth conductive spring 34 are attached so as to be in contact with each other.

The anti-theft tag provided with such a button switch 20 includes a front end of the sensor button 22 and the front box member 2.
Are attached to the anti-theft object so that the two are substantially flush with each other. On the other hand, the above-described IC 11 (see FIG. 2) detects the voltage between the contacts 14 and 14 that come into contact with the first conductive spring 31 and the second conductive spring 32, and determines the open / close state of the sensor circuit including the sensor button 22. .

The IC 11 is set to a set state after a lapse of a predetermined time after the sensor circuit shifts from a closed state to an open state, and the anti-theft tag is removed from the anti-theft object without receiving a reset signal, that is, the sensor 11 When it is determined that the sensor circuit is closed due to the projection of the button 22, the buzzer is activated to generate an alarm sound, thereby preventing the theft prevention target from being stolen.

Further, a transmitter for oscillating a signal of the resonance frequency of the resonance device 12 is provided at a gate provided at the entrance and exit, and an anti-theft object having an anti-theft tag approaches the gate to prevent the theft. When the resonance device 12 of the prevention tag receives the signal transmitted from the transmitter and gives the received signal to the IC 11, the IC 11 activates a buzzer to generate an alarm sound.

FIGS. 6A and 6B are explanatory diagrams for explaining the operation of the slide button 23. FIG. 6A shows a case where the sensor button 22 is made effective, and FIG. 6B shows a case where the sensor button 22 is made invalid. . In the drawings, portions corresponding to the portions shown in FIGS. 3 to 5 are denoted by the same reference numerals, and description thereof will be omitted. As described above, of the two cylinders 26, 26, the cylinder 26 near the slide button 23 has the communication hole 26a communicating with the inside of the case 21 and the base 23b of the slide button 23.
In a portion facing the communication hole 26a, a columnar convex portion 23c having an outer size substantially the same as the inner size of the communication hole 26a is provided coaxially with the center axis of the communication hole 26a.

As shown in FIG. 6A, the slide button
When the knob 23a of 23 is on the fourth conductive spring 34 side, the conductive plate 28
Is separated from the third conducting spring 33 by a double conducting spring.
The circuit between 33 and 34 is open. At this time, slide button
The projection 23c of 23 does not enter the communication hole 26a. The above-described IC 11 (see FIG. 2) detects whether or not the contact between the contacts 14 and 14 with which the third and fourth conductive springs 33 and 34 are in contact is in a conductive state. In the non-conducting state, as described above, the open / close state of the sensor circuit including the sensor button 22 is detected, and the generation of an alarm sound by the buzzer is controlled based on the result.

On the other hand, as shown in FIG. 6B, when the knob 23a of the slide button 23 is moved toward the third conductive spring 33, both ends of the conductive plate 28 are connected to the third conductive spring 33 and the fourth conductive spring 33.
The contact between the conductive springs 33 and 34 is closed by contact with the conductive spring 34. Accordingly, the protrusion 23c of the slide button 23 is moved to the communication hole 26a.
To enter. When the contact between the third and fourth conductive springs 33 and 34 is in a conductive state, the IC 11 operates regardless of the operation of the sensor button 22.
Does not emit a warning sound to the buzzer.

As shown in FIG. 6B, when the anti-theft tag is attached to the anti-theft object with the knob 23a of the slide button 23 moved to the third conductive spring 33 side, the slide button Since the knob 23a of the 23 cannot be operated, the buzzer does not operate regardless of the operation of the sensor button 22.

At this time, as described above, since the protrusion 23c of the slide button 23 has entered the communication hole 26a,
By inserting a pin or a needle into the communication hole 26a, the slide button 23 can be moved to the fourth conduction spring 34 side. Thus, the sensor button 22 can be activated without removing the anti-theft tag from the anti-theft object. On the other hand, using the communication hole 26a,
Since it is difficult to pull the protrusion 23c of the slide button 23 into 26a, the security of the anti-theft tag is high.

In this embodiment, an anti-theft tag provided with a button switch has been described. However, the present invention is not limited to this, and it can be applied to an anti-theft tag provided with a lever switch. Not even. Furthermore, the present invention can also be applied to an anti-theft tag provided with a sensor for detecting the attachment or detachment of the anti-theft tag to an anti-theft object, such as an optical switch or a magnetic switch, in a non-contact manner.

[0038]

As described in detail above, the anti-theft tag according to the first aspect of the present invention prevents false alarms from occurring,
A plurality of anti-theft tags can be stored close together. On the other hand, when the anti-theft tag is attached to the anti-theft object, the switch cannot be operated, so that the security is high.

In the anti-theft tag according to the second invention,
Even when the anti-theft tag is attached to the anti-theft object while the sliding member is being slid to the first position where the stop of the alarm is released, the protrusion that has entered the hole by the pin or the needle is used. By pushing back the part, the sliding member can be slid to the second position where the stop of the alarm is released.

In the anti-theft tag according to the third invention,
Since the sensor and switch are provided in one box,
The present invention has excellent effects such as high assembling efficiency of the anti-theft tag.

[Brief description of the drawings]

FIG. 1 is an external perspective view showing an anti-theft tag according to the present invention.

FIG. 2 is an exploded perspective view of the anti-theft tag shown in FIG. 1;

FIG. 3 is an enlarged plan sectional view of the button switch shown in FIG. 2;

FIG. 4 is an enlarged front view of the button switch shown in FIG. 2;

FIG. 5 is an enlarged rear view of the button switch shown in FIG. 2;

FIG. 6 is an explanatory diagram illustrating an operation of a slide button.

FIG. 7 is an explanatory diagram illustrating a use state of a conventional self-sounding anti-theft tag.

FIG. 8 is an explanatory diagram illustrating a use state of a conventional self-sounding anti-theft tag.

FIG. 9 is a schematic side view showing a configuration of a lever switch provided on another conventional anti-theft tag.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outer case 11 IC 14 Contact 20 Button switch 22 Sensor button 23 Slide button 23a Knob 23b Base 23c Convex part 28 Conductive plate 26 Tubular part 26a Communication hole 31 First conduction spring 32 Second conduction spring 33 Third conduction spring 34 Fourth Conduction spring

Claims (3)

[Claims] 1. A sensor for detecting the attachment / detachment of the case to / from the anti-theft object is provided on one surface of the case, and the sensor is detached from the anti-theft object based on the state of the sensor. In the anti-theft tag configured to activate the alarm when detecting that the alarm has been activated, a switch for stopping the alarm is provided inside the case regardless of the detection result of the sensor. The anti-theft tag, wherein a hole for operating the switch is opened on the one surface. 2. The switch according to claim 1, wherein the switch includes a sliding member that slides between a first position for stopping the alarm and a second position for releasing the stop of the alarm. Another hole is formed in the surface, and the sliding member is provided with a convex portion that enters the inside of the other hole when the sliding member is slid to the first position. 1. The anti-theft tag described in 1. 3. The anti-theft tag according to claim 1, wherein the sensor and the switch are provided in one box.