JPH07272139A - Buzzer tag for theft prevention - Google Patents

Abstract

PURPOSE:To provide a buzzer tag for theft prevention, in which no malfunction occurs and the reliability is high. CONSTITUTION:An alarm device 5, a loop-formed detection conductor 2 drawn out from the alarm device and an engagement means 11 engaging with the tip part of the detection conductor are provided. The alarm device consists of a reception means 8 receiving an oscillation radio wave form a detection gate 13, an alarm means 10 issuing an alarm by the reception of the radio wave or the disconnection of the detection conductor 2, a control means 9 controlling the operation of the alarm device 10 and a power means 12 supplying power to respective parts.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antitheft buzzer tag attached to a product to prevent theft due to shoplifting.

[0002]

2. Description of the Related Art In recent years, shoplifting has become a big problem in the supermarket and department store industries.
Various attempts have been made to reduce the shoplifting rate, and as one of them, a product monitoring system with a buzzer tag for anti-theft has been considered promising.

A conventional anti-theft buzzer tag and its system will be described below. 9 (A) and 9 (B) are an explanatory view and a block diagram showing the overall configuration of a conventional connector joint type anti-theft buzzer tag attached to a product.

In FIGS. 9A and 9B, 1 is a product,
16 is a detection conductor wire, 17 is a housing of the alarm device 18,
Reference numeral 19 is an anti-theft buzzer tag, 20 is an alarm device such as a buzzer, 21 is a detection gate, and 22 and 23 are connectors.

The structure and operation of the antitheft buzzer tag and system configured as described above will be described below.

First, as shown in FIG. 9 (A), the detection conductor wire 16 coming out from the alarm device 18 of the anti-theft buzzer tag 19 is cut midway, and connectors 22 and 23 are attached to both ends thereof. . When one of the detection conductor wires 16 is hooked on the product and the connectors 22 and 23 are connected and locked, the antitheft buzzer tag 19 is attached to the product 1.

On the other hand, radio waves of a specific frequency are transmitted from the detection gate 21 installed at the exit of the store.

Now, when trying to take out the product 1 with the anti-theft buzzer tag 19 attached from the store, as shown in FIG.
As shown in (B), the receiving circuit 19a incorporated in the anti-theft buzzer tag 19 receives the radio wave of the specific frequency transmitted from the detection gate 21, and the switching circuit 19 is received.
b, the alarm device 20 such as a buzzer emits an alarm sound through the control circuit 19c to notify shopkeepers of shoplifting. Further, when the criminal disconnects the connectors 22 and 23 of the anti-theft buzzer tag 19 or disconnects the detection conductor wire 16, FIG.
, The separation detector 19d, the switching circuit 19b,
An alarm sound such as a buzzer is emitted from the alarm circuit 20 through the control circuit 19c. 19e is a power supply circuit,
19f is a power switch.

[0009]

However, the above-mentioned conventional connector joint type anti-theft buzzer tag is attached to the product 1 and is a connector for repeated insertion / removal such as removal from the product 1 at the cash register at the time of regular purchase. 22 and 23 are not sufficiently reliable, and the connector 2 of the detection conductor wire 16 can be obtained even if the customer touches and looks at the product 1 by hand.
Nos. 2 and 23 have a defect that connection failure occurs and many malfunctions of generating an alarm sound occur.

It is an object of the present invention to provide a theft prevention buzzer tag which has solved the above-mentioned conventional problems and has no malfunction.

[0011]

In order to achieve this object, an anti-theft buzzer tag according to the present invention comprises an alarm device, a loop-shaped detection conductor wire pulled out from the alarm device, and a tip of the detection conductor wire. The alarm device comprises a receiving means for receiving the oscillated radio wave from the detection gate, and an alarm means for issuing an alarm by receiving the radio wave by the receiving means or cutting the detection conductor wire. The control means for controlling the operation of the alarm means, the control means and the receiving means, and the power supply means for supplying power to the alarm means.

[0012]

According to this structure, since there is no electrical connection between the detection conductor wire and the locking means, there is no connection failure due to repeated installation and removal of the product, and malfunctions occur. It is possible to realize a highly reliable anti-theft buzzer tag.

[0013]

【Example】

(Embodiment 1) A first embodiment of the present invention will be described below with reference to FIGS. 1, 2 and 3. FIG. 1 (A) is an explanatory view of the operation when the anti-theft buzzer tag of the present invention is attached to a product, FIG. 1 (B) is a block diagram showing the entire structure of the anti-theft buzzer tag of the present invention, and FIG. 2 (A). , (B) and (C) show an embodiment of the locking means of the present invention,
FIG. 3 shows a circuit diagram of the anti-theft buzzer tag of the present invention.

In FIGS. 1A and 1B, 1 is a product,
Reference numeral 2 is a detection conductor wire obtained by applying an insulating coating to an electric wire having conductivity such as metal. Reference numeral 3 is a hook to which the shaft supporting portion is attached inside the housing 4 of the alarm device 5, 6 is the alarm device 5 and the hook 3 and The anti-theft buzzer tag is composed of the detection conductor wire 2.

The detection conductor wire 2 extends outside the housing in a closed loop shape, and the tip of the loop of the detection conductor wire 2 is locked to the hook 3 after passing through, for example, the handle portion of the commodity 1. In this state, if the free end of the hook 3 is pushed in as shown by the arrow in the figure, it is firmly held by the holding means 7 in the housing 4.

The operation of the locking means 11 will be described in more detail with reference to FIG. In FIG. 2, 3a is a hook of the hook 3,
Reference numeral a is a hook portion of the holding means 7, 7b is a fixing portion for fixing the holding means 7, 11 is a locking means composed of the hook 3 and the holding means 7, and 14 is a release for releasing the locked detection conductor wire 2. It is a jig.

2A shows a state before the detection conductor wire 2 is locked, and FIG. 2B shows a locked state.
(C) is a figure explaining operation | movement which releases the detection conductor wire 2 locked.

In FIG. 2A, when the tip of the loop of the detection conductor wire 2 is locked to the hook 3 and the hook 3 is pushed from above as indicated by the arrow, the hook portion 3a of the hook 3 causes the hook portion 3a of the holding means 7. It is pushed down while coming into contact with 7a. Here, since the holding means 7 is formed of a substantially U-shaped spring made of an elastic body, when the hook portion 3a of the hook 3 is pushed down, the hook portion 7a of the holding means 7 is pushed leftward as shown by an arrow in the figure. Be done.
When the tips of both hooks 3a and 7a are pushed down to the position where they are released, the spring of the holding means 7 is restored and the hook 3a of the hook 3 is restored.
And the hook 7a of the holding means 7 are fitted to each other, and the detection conductor wire 2 is locked as shown in FIG. 2 (B). Hook 3 in this state
Even if it is pulled upward, it is firmly fitted by the restoring force of the spring of the holding means 7 and cannot be easily removed.

When the product 1 with the anti-theft buzzer tag 6 locked is purchased by regular sale, it is necessary to remove the anti-theft buzzer tag 6 at the cash register. Figure 2
The operation for releasing the detection conductor wire 2 locked in (C) is shown. In FIG. 2C, when the releasing jig 14 is inserted into the insertion opening 4a of the housing 4 and pushed in the direction of the arrow, the holding means 7 is formed of a spring, so the tip of the hook portion 7a of the holding means 7 is formed. Comes off from the hook 3a of the hook 3. Once released, the hook 7c on the opposite side of the hook 7a of the holding means 7 pushes the hook 3 to the left by the spring force as shown by the arrow in the figure, so that the hook 3 is pushed up as shown by the upward arrow, and the holding means 7 is held. Can be canceled.

Next, the structure and operation of the antitheft buzzer tag 6 of the present invention will be described in more detail with reference to FIGS. 1 (B) and 3.

In FIG. 1B, 8 is a detection gate 13.
Receiving means for receiving an oscillating radio wave of a specific frequency transmitted from the control means 9, control means for controlling the alarm means 10 to emit an alarm sound when receiving from the receiving means 8 or when the detection conductor wire 2 is disconnected, Reference numeral 12 is a power supply means for supplying power to each part in the alarm device 5, and T ₁ and T ₂ are detection conductor wires 2
And a first terminal and a second terminal, respectively, for connecting to.

In FIG. 3, L1 and C1 are coils and capacitors, respectively, which form a parallel resonance circuit of the receiving means 8, D1 is a diode for detecting a specific frequency received by the receiving means 8 and holding the voltage thereof, and C2 is A capacitor for smoothing and accumulating the voltage detected by the diode D1, Q2 is a switching transistor for supplying the positive potential of the power supply means 12 to the alarm means 10, and Q1 is Q2.
Controlling switching of the transistors Q3 and Q
Reference numeral 4 is a driving transistor for driving the buzzer BZ.

FIG. 1 (B) shows a state in which the antitheft buzzer tag 6 is attached to the product 1 by the detection conductor wire 2 and the locking means 11.

Now, when the detection conductor wire 2 is torn or cut by some means, the control means 9 detects it and the positive voltage of the power supply means 12 is output to the alarm means 10.
, Whereby the alarm means 10 can emit an alarm sound to notify the store clerk of shoplifting the product.

The operation will be described in detail with reference to FIG. In the steady state in which the anti-theft buzzer tag 6 is attached, the current due to the voltage on the positive electrode side of the power supply means 12 flows from the resistor R1 to the coil L.
1 and the sensing conductor wire 2. Since the DC resistance of the coil L1 and the sensing conductor wire 2 is almost zero, there is no voltage drop between the coil L1 and the sensing conductor wire 2, and the positive side of the diode D1, the base B ₁ and the emitter E ₁ of the transistor Q1 are almost the same. The potential becomes a potential, which turns off (cuts off) the transistor Q1. When the transistor Q1 turns off, the transistor Q2 also turns off.

[0026] Now, when the connected sensing conductor line 2 is cut to the first and second terminals T _1, T _2, the current resistance R
From 1 to the diode D1 side, electricity is stored in the capacitor C2, and at the same time a current is passed through the base B ₁ of the transistor Q1 to turn on (conduct) the transistor Q1. When the transistor Q1 is turned on, a base current flows through the transistor Q2 and the transistor Q2 is also turned on.

When the transistor Q2 is turned on, the voltage on the positive electrode side of the power supply means 12 becomes the emitter E _{2 of the} transistor Q2.
Is supplied to the alarm means 10 through the collector C ₂ .
The alarm means 10 is a transistor Q3 that drives the buzzer BZ.
A circuit is constructed from Q4 and Q4, and when a voltage is supplied to the circuit, the buzzer BZ sounds an alarm.

When the transistor Q2 is turned on,
A current flows from the collector C _{2 of the} transistor Q2 through the resistor R2, and electricity is stored in the capacitor C2, and at the same time, a current flows through the base B _{1 of the} transistor Q1, so that the sensing conductor line 2 once cut is returned to its original state. In that case, it has a self-holding function that the buzzer BZ continues to ring even if the cut portion is made conductive again.

On the other hand, in FIG. 1B, if an attempt is made to pass through the detection gate 13 with the anti-theft buzzer tag 6 attached, an oscillation radio wave of a specific frequency is transmitted to the detection gate 13, and the anti-theft buzzer tag is sent. The receiving means 8 in 6 receives a specific frequency and sounds the buzzer of the alarm means 10 via the control means 9.

The operation will be described in detail with reference to FIG. The coils L1 and C1 of the receiving means 8 are resonant circuits that resonate at a specific frequency. When a radio wave of a specific frequency is received, the induced voltage of the resonance circuit is detected by the diode D1 and the capacitor C2 is detected.
Is smoothed and the voltage is accumulated. When the accumulated voltage exceeds the base potential of the transistor Q1, a base current flows and the transistor Q1 turns on. When the transistor Q1 turns on, the transistor Q2 also turns on, and the voltage of the power supply means 12 is supplied to the alarm means 10. When the voltage is supplied to the alarm means 10, the buzzer BZ gives an alarm. Resistance R at the same time
A current is also applied to 2 to store electricity in the capacitor C2 and at the same time a current is applied to the base of the transistor Q1. Therefore, similarly to the above, the self-holding operation in which both the transistors Q1 and Q2 are turned on even when the induced voltage disappears. And then
The alarm can continue to sound and inform shopkeepers of shoplifting.

As is clear from the above description, the anti-theft buzzer tag 6 according to this embodiment does not cause any connection failure even if it is repeatedly used by being attached and detached, and it is possible to eliminate malfunctions. It was

Further, in the conventional example, when attaching and detaching the buzzer tag in the regular sale, it is necessary to disconnect the connector without fail, and it is necessary to operate the means for releasing the alarm each time. In the present invention, the alarm does not sound when the buzzer tag 6 is attached or removed, and the buzzer tag 6 can be easily attached and detached. R
2 to R6 are resistors, D2 is a diode, and C4 is a capacitor.

(Embodiment 2) A second embodiment of the present invention is shown in FIG.
Shown in.

FIG. 4 shows a second embodiment of means for locking the anti-theft buzzer tag on a product. In FIG. 4, 70 is a holding means for holding the detection conductor wire fixing portion 30, 71 is a fixing portion for fixing the holding means 70, 72 is a locking portion of the holding means 70, 31 is a engagement portion of the detection conductor wire fixing portion 30. Stop 2,
Reference numerals 4, 5 and 14 are a detection conductor wire, a housing, an alarm device and a releasing jig, respectively.

As shown in FIG. 4 (A), a detection conductor wire fixing portion 30 is attached to the tip of the detection conductor wire 2, and a holding means 70 for firmly fixing this is provided in the housing 4 of the alarm device 5. It is provided inside.

The detection conductor wire fixing portion 30 is made of, for example, a molded body of resin or the like, and the locking portion 31 at the tip thereof may be made of a material having sufficient strength to withstand insertion / removal. The holding means 70 is formed of a spring material, and the holding means 70 is pushed in the direction of the arrow by inserting the locking portion 31. When the locking portion 31 reaches the locking portion 72, the spring of the holding means 70 is restored, and the detection conductor wire fixing portion 30 and the holding means 70 are restored.
Are fitted together, as shown in FIG. 4 (B). In addition, the removal of the detection conductor wire fixing portion 30 from the alarm device 5 is performed as shown in FIG.
As shown in (B), the releasing jig 14 holds the holding means 70.
By pushing in the direction of the arrow to disengage the locking portion 72 from the locking portion 31 and pull out the detection conductor wire fixing portion 30.

As is clear from the above description, there is no malfunction due to the attachment and detachment of the detection conductor wire 2, and the attachment and detachment effects are the same as those of the first embodiment.

(Embodiment 3) A third embodiment of the present invention is shown in FIG.
And shown in FIG.

FIG. 5 shows a third embodiment of means for locking the anti-theft buzzer tag 6 on the product 1.

FIG. 6A is an explanatory view for explaining a state in which the detection conductor wires 2 are fixed by the fixing means 60 and a method of releasing the fixing means 60 by the fixing releasing jig 15.
(B) is a state diagram showing a state before the fixing means 60 is fixed or a state after the fixing means 60 is released.

As shown in FIG. 5, the detection conductor wire 2 is connected to the product 1.
The detection conductor wires 2 that are folded back through each other are overlapped and fixed by the fixing means 60 of the detection conductor wires 2 outside the alarm device 5.

In FIG. 6, reference numeral 60 designates surfaces f ₁ , f ₂ and g ₁
And a fixing means for fixing the detection conductor wire 2 having the groove portion 63, the locking convex portion 61 and the locking concave portion 62, and a and b are the convex and concave pieces of the fixing means 60 divided by the central edge c. , 15 are fixing means releasing jigs having faces F ₁ , F ₂ and G ₁ .

The fixing means 60 shown in FIG. 6 is formed, for example, by molding a resin material, and the groove 63 of the fixing means 60 has a cross-sectional area smaller than the four thicknesses of the covered detection conductor wires 2. Further, the central ridge C, which divides the fixing means 60 into a convex piece a and a concave piece b, is made of a thin skin of the same resin.
Further, a convex portion 61 for locking is formed on the convex piece a, and a concave portion 62 for locking is formed on the concave piece b.

As shown in FIG. 6 (B), four detection conductor wires 2 are bundled and placed in the groove 63, the convex pieces a and the concave pieces b are folded back along the central edge c and pressed by hand to make the locking convex. Fit the part and the lock recess. Since the groove 63 has a cross-sectional area smaller than the thickness of four detection conductor wires, the conductor wire 2 is firmly fixed by the fixing means 60 in the fitted state. Once the locking concave-convex portions 62 and 61 are fixed, the fixing cannot be easily released manually, and the fixing means releasing jig 15 shown in FIG.

The releasing jig 15 is a plier-like pinching tool having a concave member having F ₁ and F ₂ surfaces attached to one end thereof and a rod-shaped member having a G ₁ surface at the other end thereof. The member is attached.

When the releasing jig 15 is sandwiched as indicated by the arrows by applying the surfaces F ₁ , F ₂ and G ₁ to the fixing means 60 at the positions corresponding to f ₁ , f ₂ and g ₁ , respectively, the fixing means 60 can be easily fixed. The fixation can be released at.

As is clear from the above description, there is no malfunction due to attachment or detachment of the detection conductor wire 2,
Moreover, the same effect as in Example 1 was obtained with respect to attachment and detachment.

(Embodiment 4) A fourth embodiment of the present invention is shown in FIG.
Shown in.

FIG. 7 is a circuit diagram of an antitheft buzzer tag circuit using the first detection conductor wire 2 and the second detection conductor wire 2a.

FIG. 7 shows a circuit diagram added to a part of the antitheft buzzer tag circuit diagram (FIG. 3) of the first embodiment.
The additional circuit includes a resistor R connected between the collector C _{1 of the} transistor Q1 and the third terminal T ₃ and a third terminal T ₃
Pulled out of the housing 4 of the alarm device 5 from a second sensing conductor wires 2a of loop-shaped insulating coating is made back to the third terminal T ₃ again.

In FIG. 7, the first detection conductor line 2 is formed in a loop shape between the first terminal T ₁ and the second terminal T ₂ , and the first detection conductor line 2 and the second detection conductor line 2 are connected. Both loop-shaped tips of the conductor wire 2a are passed through the handle of the product 1, and the tips of both loops are locked to the hooks 3 and held by the holding means 7.

It has already been mentioned that the first sensing conductor wire 2 is the same as the sensing conductor wire 2 of the first embodiment, and the alarm is issued by the disconnection.

The second sensing conductor line 2a is a floating circuit which is electrically extended from the collector C _{1 of the} transistor Q1 through the resistor R. If the core wire of the second detection conductor wire 2a is connected to the negative electrode side (ground side) of the power supply means 12 by some operation, that is, if it contacts the conductor core wire of the first detection conductor wire 2 from which the insulating coating is removed. Since it is connected to the ground side, the base current of the switching transistor Q2 flows, Q2 is turned on, the voltage is supplied to the alarm means 10, and an alarm sound is emitted.

The colors and thicknesses of the coatings of the first and second detection conductor wires 2 and 2a are the same, and it is not possible to distinguish which is the first and second detection conductor wires 2 and 2a from the appearance. deep.

In the first embodiment of the present invention, when the product with the anti-theft buzzer tag is taken away, the coating on both ends of the detection conductor wire 2 on the housing 4 side is stripped to short the conductors so that the alarm does not sound. Thereafter, the remaining short-circuited detection conductor wire 2 was cut, and the buzzer tag 6 was removed from the product, thereby making it possible to easily carry out fraud.

However, in the fourth embodiment of the present invention, not only the first detection conductor wire 2 and the second detection conductor wire 2a cannot be identified, but also the first detection conductor wire 2 detects disconnection, Since the second detection conductor wire 2a detects a short circuit with the first detection conductor wire 2, it is almost impossible to correctly select these reciprocal events and to carry out fraud.

As described above, this embodiment is very effective for a person who intends to shoplift shop by constructing two kinds of sensing conductor wires having reciprocal events.

(Embodiment 5) A fifth embodiment of the present invention is shown in FIG.
Shown in.

FIG. 8 is an explanatory view for explaining the releasing operation when the alarm means operates and continues to emit the alarm sound.

In FIG. 8 (A), 50 is an embodiment of the reset means for releasing the alarm means, and 53 is an insertion port for inserting the release jig 54 of the reset means.

In FIG. 8A, the circuit excluding the reset means 50 is the same as the circuit diagram (FIG. 3) of the anti-theft buzzer tag described in the first embodiment.

The reset means 50 will be described with reference to FIG. The reset means 50 is composed of, for example, a normally open push button switch inserted between the base B ₁ of the transistor Q1 of the control means 9 and the emitter E ₁ , and the release jig 54 is inserted from the insertion opening 53. By pushing the push button switch, the base B ₁ and the emitter E ₁ of the transistor Q1 are short-circuited to have the same potential. That is, the electric charge of the capacitor C2 is completely discharged, and the transistor Q1 is turned off. When the transistor Q1 turns off, the transistor Q2 also turns off and no voltage is supplied to the alarm means 10, so that the alarm means 10 stops the alarm sound. However, unless the cause of the alarm sounding, that is, the disconnection of the detection conductor wire 2 or the reception of the oscillating radio wave of the specific frequency is removed, the alarm sound is emitted again when the releasing jig 54 is released.

Therefore, when the detection conductor wire 2 is cut, the cutting jig 54 may be repaired while the releasing jig 54 is being pressed, and the releasing jig 54 may be removed when the repairing is completed. Further, in the case of receiving the oscillated radio wave, it is sufficient to hold the release jig and bring it to a place where the radio wave does not arrive, and remove the release jig 54.

It is inconvenient to carry out the repair work while pressing the release jig 54. An example in which this is improved is shown in FIG. In FIG. 8B, 55 and 56 are terminals respectively connected to the base and emitter of the transistor Q1, 57 is a conductor made of elastic metal or the like, and a short-circuit conductor wire for short-circuiting the terminals 55 and 56, Reference numeral 58 is an insertion port for inserting the short-circuit conductor wire.

With the structure shown in FIG. 8B, the alarm is released by the elastic short-circuit conductor wire 57, so that the alarm can be released and the work for repairing the cause of the alarm can be easily performed.

[0066]

As described above, according to the present invention, unlike the conventional anti-theft buzzer tag, since there is no connector joint portion, there is no malfunction due to poor contact. Further, in the conventional anti-theft buzzer tag, an alarm sounds at the time of disconnecting the connector even during normal sale, so it is necessary to cancel the alarm in advance, but in the present invention, the alarm does not sound during normal sale, so the anti-theft buzzer tag It became easy to attach and remove.

Further, since it is composed of the first and second detection conductor wires, it is possible to realize a theft prevention buzzer tag which is highly effective in that it is extremely difficult for a person who intends to steal it. is there.

[Brief description of drawings]

FIG. 1A is a perspective view for explaining the operation when the anti-theft buzzer tag of the present invention is attached to a product. FIG. 1B is a block diagram showing the overall structure of the anti-theft buzzer tag of the present invention.

FIG. 2A is a cross-sectional view illustrating a state before the anti-theft buzzer tag of the present invention is locked to a product. FIG. 2B is a cross-sectional view illustrating a state where the anti-theft buzzer tag of the present invention is locked to a product. The sectional view (C) is a sectional view for explaining the operation of releasing the anti-theft buzzer tag of the present invention from the product.

FIG. 3 is a circuit diagram of the anti-theft buzzer tag of the present invention.

FIG. 4A is a cross-sectional view illustrating a second embodiment of the means for locking the anti-theft buzzer tag of the present invention on a product. FIG. 4B is an operation of releasing the anti-theft buzzer tag of the present invention from a product. Sectional view explaining

FIG. 5 is a perspective view illustrating a third embodiment of means for locking the anti-theft buzzer tag of the present invention on a product.

FIG. 6A is a perspective view for explaining a fixing means for fixing the detection conductor wires to each other and a method for releasing the fixing means according to the present invention. FIG. 6B is a state before being fixed to the fixing means or after being released. Perspective view showing the state

FIG. 7 is a circuit diagram of an anti-theft buzzer tag composed of a first detection conductor wire and a second detection conductor wire of the present invention.

FIG. 8A is a circuit diagram for explaining the first embodiment of the operation for canceling the alarm sound emitted from the alarm means of the present invention. FIG. 8B is the circuit diagram for canceling the alarm sound emitted from the alarm means of the present invention. Circuit diagram for explaining the second embodiment of the operation

FIG. 9 (A) is a perspective view for explaining the operation of attaching a conventional connector joint type anti-theft buzzer tag to a product. FIG. 9 (B) is a block diagram showing the overall configuration of a conventional connector joint type anti-theft buzzer tag.

[Explanation of symbols]

 1 Product 2 Detection Conductor Wire 3 Hook 4 Alarm Device Housing 5 Alarm Device 6 Anti-Theft Buzzer Tag 7 Holding Means 8 Receiving Means 9 Control Means 10 Alarm Means 11 Locking Means 12 Power Means 14 Release Jigs

Claims (9)

[Claims] 1. An alarm device, a loop-shaped detection conductor wire drawn from the alarm device, and locking means for locking the tip end portion of the detection conductor wire, the alarm device being provided from a detection gate. Receiving means for receiving the oscillating radio wave, alarm means for issuing an alarm by receiving the radio wave by the receiving means or cutting the detection conductor wire, control means for controlling the operation of the alarm means, the control means and the receiving means. An anti-theft buzzer tag having a power supply means for supplying power to the alarm means. 2. The detection conductor wire is a conductor obtained by short-circuiting a first terminal connected to one of the power supply means incorporated in the alarm device and a second terminal connected to one of the receiving means in a loop shape. The anti-theft buzzer tag according to claim 1, which is a line. 3. The hooking means for hooking the detection conductor wire, and the holding means for fixing the hook.
The anti-theft buzzer tag according to claim 1, comprising an insertion opening of a releasing jig for releasing the holding means. 4. An alarm device, a loop-shaped detection conductor wire drawn out from the alarm device, a detection conductor wire fixing portion attached to a tip of the detection conductor wire, and the detection conductor wire fixing portion being the alarm. The alarm device is provided with a holding means fixed to the device and an insertion opening of a releasing jig for releasing the holding means, and the alarm device receives the oscillating radio wave from the detection gate, and receives the radio wave by the receiving means. Alternatively, it comprises alarm means for issuing an alarm when the detection conductor wire is cut, control means for controlling the operation of the alarm means, and power supply means for supplying power to the control means, the receiving means and the alarm means. Anti-theft buzzer tag. 5. An alarm device, a loop-shaped detection conductor wire drawn out from the alarm device, and a fixing means for fixing the detection conductor wires to each other in a state where the detection conductor wire is hooked on a product. Is a receiving means for receiving the oscillated radio wave from the detection gate, an alarm means for issuing an alarm by receiving the radio wave by the receiving means or cutting the detection conductor wire, and a control means for controlling the operation of the alarm means. An antitheft buzzer tag comprising a power supply means for supplying power to the control means, the receiving means and the alarm means. 6. An alarm device, a loop-shaped first detection conductor wire and a second detection conductor wire drawn out from the alarm device, and the tip portions of these first and second detection conductor wires are locked. The alarm device has a receiving means for receiving an oscillating radio wave from the detection gate, and the receiving means receives the radio wave or disconnects the first detection conductor wire or the first and second detection conductors. An alarm means for issuing an alarm due to a short circuit of the wire,
An anti-theft buzzer tag comprising control means for controlling the operation of the alarm means and power supply means for supplying power to the control means, the receiving means and the alarm means. 7. The second detection conductor line extends from a third terminal connected through a resistor from the collector of the transistor included in the control means, and is connected again to the third terminal in a loop-like detection form. The anti-theft buzzer tag according to claim 6, which is composed of a conductor wire. 8. The control means has a reset means for canceling an alarm issued by the alarm means, and the alarm device has an insertion opening of a releasing jig for driving the reset means from the outside. Anti-theft buzzer tag. 9. The anti-theft buzzer tag according to claim 8, wherein the reset means is inserted between the base and the emitter of the transistor Q1 included in the control means.