JP2000322664A - Antitheft system and device and power feeding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an antitheft system of low running cost, an antitheft device provided in this antitheft system and a power feeding device for feeding power to this antitheft device. SOLUTION: An antitheft device 1 is constituted by fitting a lid member 12 outside a transparent plastic fitting member 11 fitted through an object so as to move it back and forth and the lid member 12 and the fitting member 11 are equipped with lock mechanisms for limiting the backward movement of the lid member 12. A plurality of antitheft devices 1, 1... are respectively longitudinally housed in a bookshelf-shaped display rack 50 and at the interval of suitable number of antitheft devices 1, 1..., power feeding devices 2, 2... for feeding power to the plurality of left and right side antitheft devices 1, 1... are inserted with the same outer dimension as the antitheft device 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a CD, a CD-RO
A system for preventing theft of an object, such as an M, MD or DVD disk or a cartridge containing a disk, which is housed in a case, an antitheft device provided in the antitheft system, and an antitheft device The present invention relates to a power supply device for supplying power.

[0002]

2. Description of the Related Art In stores and rental shops, C
D, CD-ROM, MD or DVD, etc., a plurality of products in which sound data and / or image data are recorded on a disk, and a disk or a cartridge containing the disk is stored in a rectangular plastic case. Displayed on display shelves for sale or rental. These products,
That is, the following devices have been developed to prevent the object from being stolen.

FIG. 8 is an external perspective view showing a conventional anti-theft device. The anti-theft device has a width substantially equal to the width of the case of the object to be stored, and is provided on one edge of a strip-shaped bottom plate 41 which is longer than the length of the case by a predetermined size. A square pillar-shaped anti-theft device main body 42 having a height substantially the same as the height of the anti-theft device and having the same width as the width of the bottom plate 41 is provided upright. The predetermined area is covered with a flexible sheet member 43 formed by bending a transparent sheet or a translucent sheet made of a synthetic resin into a U-shape in plan view, and a storage part 45 for storing the case is formed. .

The width and depth of the sheet member 43 are substantially the same as the width and length of the bottom plate 41, and the height of the sheet member 43 is substantially the same as the height of the anti-theft device body 42. It has been done. The portions near both ends of the sheet member 43 are opposed to the front and back surfaces of the anti-theft device main body 42, and the opposing portions are adhered to the anti-theft device main body 42 with a double-sided adhesive tape. Further, the bottom plate 41 of the seat member 43
A convex portion 44 having a width substantially equal to the width of the bottom plate 41 is provided at a portion facing the front end of the bottom plate 41. The convex portion 44 is bent at a right angle to the back surface of the bottom plate 41, and a stopper member made of synthetic resin is provided. And is fixed to the bottom plate 41.

The above-described anti-theft device main body 42 has a built-in button battery, an alarm buzzer, a receiver, and the like. An opening 47 is provided. Further, a rectangular hole 48 is opened substantially at the center of the side surface of the anti-theft device main body 42 facing the storage portion 45, and a lever switch 49 for operating the alarm buzzer is provided in the hole 48. Switch 49
Are provided so as to be swingable so that the front end portion thereof slightly protrudes from the hole 48.

In such an anti-theft device, an object is inserted into the storage portion 45 from the opening facing the bottom plate 41, and the lever switch 49 is tilted into the hole 48 by the case of the object, thereby preventing the theft. After activating the device main body 42, the anti-theft device and the object are displayed on the display shelf. At this time, since the lever switch 49 is tilted, no alarm buzzer is issued. On the other hand, without stopping the operation of the anti-theft device main body 42, the target object is pulled out of the storage section 45 and the lever switch 49 is pulled out.
When the vehicle starts up from the hole 48, the anti-theft device main body 42 activates an alarm buzzer and issues an alarm.

A gate for transmitting a signal for informing the anti-theft device is provided at an entrance or the like of the store, and the user enters the gate with the anti-theft device and an object stored therein. Then, when the anti-theft device main body 42 receives the signal transmitted by the gate, the anti-theft device main body 42 activates an alarm buzzer and issues an alarm.

[0008]

However, in the conventional anti-theft device, the battery built in the anti-theft device is consumed during use and the anti-theft device is discarded before the alarm buzzer stops operating. As a result, there is a problem that running costs increase because replacement with a new anti-theft device is required. On the other hand, it is conceivable that the anti-theft device is recovered before the alarm buzzer stops operating and the depleted battery is replaced with a new battery. However, the cost required for recovery and the cost required for battery replacement are high. Therefore, as described above, more cost is required in the case of replacing with a new anti-theft device.

The present invention has been made in view of the above circumstances, and has as its object the anti-theft system with low running cost, the anti-theft device provided in the anti-theft system, and the anti-theft system. An object of the present invention is to provide a power supply device for supplying power to a device.

[0010]

According to a first aspect of the present invention, there is provided an anti-theft system for storing an object to be stolen, a receiving coil for receiving a signal, and an object stored in the storage. It is provided with a detector for detecting whether or not the receiving coil has received a predetermined signal,
Alternatively, when the detector detects that an object is not stored in the storage unit, the anti-theft device includes an anti-theft device main body that outputs an alarm, and a power supply device that supplies power to the anti-theft device. An anti-theft system, wherein the power supply device generates a signal different from the signal,
A transmission coil for transmitting the generated signal, the anti-theft device main body includes a rectifier circuit for rectifying an induced current generated in the reception coil by a received signal, and an electric current by the rectified current of the rectifier circuit. And a power storage device for storing power. The power storage device is operated by the electricity stored in the power storage device.

According to a second aspect of the present invention, there is provided an anti-theft apparatus for storing an object to be stolen, a receiving coil for receiving a signal, and determining whether the object is stored in the storage section. A theft prevention device that outputs a warning when the receiving coil receives a predetermined signal, or when the detector detects that the target object is not stored in the storage unit. In a theft prevention device comprising a main body, a rectifier circuit for rectifying an induced current generated in the receiving coil by a received signal, and a power storage device for a power supply for storing electricity by the rectified current of the rectifier circuit, It is characterized by being operated by the electricity stored in the power storage device.

According to a third aspect of the present invention, there is provided a power supply device for storing an object to be stolen, a receiving coil for receiving a signal, and detecting whether the object is stored in the storage. An anti-theft device main body that outputs an alarm when the receiving coil receives a predetermined signal, or when the detector detects that an object is not stored in the storage unit. A power supply device for supplying power to the anti-theft device, comprising: a circuit that generates a signal different from the signal; and a transmission coil that transmits the generated signal.

In an anti-theft device including a storage unit for storing an object to be stolen and a main body of the anti-theft device, the detector detects that no object is stored in the storage unit. In this case, or when the receiving coil receives a predetermined signal, the anti-theft device outputs an alarm. The main body of the anti-theft device is provided with a power storage device for a power supply such as a capacitor and a secondary battery. The main body of the anti-theft device detects an object by a detector and generates an alarm by the electricity stored in the power storage device for the power source. Is occurring.

The power supply device generates a signal different from a signal for generating an alarm in the anti-theft device main body, and transmits the generated signal from the transmitting coil to the receiving coil of the anti-theft device main body. The anti-theft device main body rectifies an induced current generated in the receiving coil by a received signal with a rectifier, passes the rectified current to the power storage device, and stores the electricity in the power storage device.

As described above, the main body of the anti-theft device is operated by the electricity stored in the power storage device, and the power storage device accumulates electricity by the signal transmitted from the power supply device. As such, the anti-theft device may operate semi-permanently. Therefore, the running cost is low. Also, even if the anti-theft device containing the object is carried away from the power supply device, the anti-theft device main body is powered by the electricity stored in the power storage device during a practical time. Since it is operating, when a predetermined signal is received, an alarm is issued to prevent theft.

[0016]

Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a perspective view showing an anti-theft system according to the present invention. In the drawing, reference numeral 1 denotes a rectangular anti-theft device for preventing a disk or a cartridge containing a disk or the like from being housed in a case to prevent the object from being stolen. It is. The anti-theft device 1 includes a transparent plastic fitting member 11 in which an object is fitted, and a cover member 12 that is fitted to the outside so as to be able to advance and retreat. There is provided a lock mechanism for restricting retraction. A plurality of anti-theft devices 1, 1,... Are housed vertically in a book shelf display shelf 50, respectively, and the same number of anti-theft devices 1, 1,. Power supply devices 2, 2,... For supplying power to a plurality of left and right anti-theft devices 1, 1,.

FIGS. 2 and 3 are a side view and a plan view of the anti-theft device 1 shown in FIG. The fitting member 11 is provided on one side of the U-shaped frame portion 13 with a rectangular plate portion 14 having substantially the same area as the plane area of the case of the object and having a hole formed in the center. On the other side of the frame portion 13, a rectangular piece portion that prevents an object fitted in the frame portion 13 from being detached is provided at a corner of a side located at a U-shaped bottom of the frame portion 13. 15, 15 are protruding respectively.

Contact portions 16, 16 with which the legs 17, 17 of the lid member 12 abut are located on the outer peripheral surfaces near both ends of the frame portion 13 and at a predetermined distance from both ends of the frame portion 13. Each is protruding. Frame part 13 from both contact parts 16, 16
The fitting portion is provided so that the thickness of the portion extending over both ends of the fitting portion is thinner than the thickness of the other portion, and the fitting portion includes a frame portion.
The first projections are rectangular in side view in order from the side closer to both ends of 13.
19a, 19a and the second protrusions 19b, 19b
Are provided on the center line in the depth direction at an appropriate distance. The first protrusions 19a, 19a and the second protrusions 19b, 19b are provided with tapered portions that gradually decrease toward the corresponding ends of the frame portion 13.

The lid member 12 is a bottomed rectangular tube having a width larger than the thickness of the case of the object, and has legs 17, 17 having a rectangular shape in side view from the short side edge. It has been extended. The lid member 12 and the legs 17, 17 are formed of an opaque material. Protrusions having a predetermined height are provided near the base ends of the two legs 17, 17 of the lid member 12. Locking springs 18, 18 each having a rectangular hole formed in the center of a magnetic metal plate having a moire shape in a side view are provided in both legs 17, 17 to limit the retreat of the lid member 12. The two lock springs 18, 18 are cantilevered by the above-mentioned projections.

A rectangular parallelepiped anti-theft device main body 3 is fixed to the center of the bottom of the lid member 12. Anti-theft device body 3
Is smaller than the depth dimension of the lid member 12, and when the lid member 12 is fitted to the fitting member 11 fitted with the target object, the antitheft device main body 3 and the target object are substantially in contact with each other. It has been done.

A rectangular hole is formed at the front of the anti-theft device main body 3, that is, at the approximate center of the surface of the anti-theft device main body 3 facing the object. In this hole, the lever switch body 5a that activates the alarm buzzer built in the antitheft device body
However, it is fitted so as to close substantially half of the hole, and the lever 5b extending from the lever switch main body 5a is raised by a spring provided on the lever switch main body 5a to have an appropriate inclination angle. ing. The anti-theft device body 3
When the lever 5b is tilted into the hole, the alarm buzzer is turned off, and when the lever 5b starts up, the alarm buzzer is activated.

In such an anti-theft device, the legs 17, 17 of the lid member 12 are externally fitted to the fitting portion of the fitting member 11, and the lid member 12 is advanced, so that the lock springs 18, 18 The first projections 19a, 19a are fitted in the holes. As a result, the retreat of the lid member 12 is restricted, so that the lid member 12 is prevented from dropping from the fitting member 11. On the other hand, the lock springs 18
Since the frame 13 is open at both ends when it is fitted to the projections 19a, it is easy to fit the object into the fitting member 11 and take out the object from the fitting member 11. Can be done. When the object is fitted to the fitting member 11, both ends of the frame portion 13 and the side surface of the object are substantially flush.

After the object is fitted to the fitting member 11, the lid member 12 is advanced, and the fitting member 11 and a part of the object are inserted into the lid member 12. With the lid member 12 further advanced, the leg 1
The tips of 7 and 17 are brought into contact with the contact portions 16 and 16 provided on the frame portion 13, and the second protrusions are inserted into the holes of the lock springs 18 and 18.
19b, 19b are fitted inside. At this time, the lever 5b of the anti-theft device main body 3 is tilted by the side of the object.

In the state where the fitting member 11 and a part of the object are inserted into the lid member 12, the retreat of the lid member 12 is restricted,
The target object cannot be taken out of the fitting member 11. Further, since the anti-theft device main body 3 is provided inside the lid member 12, it is prevented that the anti-theft device main body 3 is tampered with from outside. Accordingly, the object is prevented from being pulled out of the fitting member 11 without causing the anti-theft device main body 3 to be alerted, and the anti-theft device is highly reliable.

When the object is taken out of the anti-theft device by any method, the lever 5b starts up,
The anti-theft device main body 3 issues an alarm buzzer. Also,
The anti-theft device main body 3 is designed to emit an alarm buzzer when a predetermined signal is received. At the entrance of the store, etc., a gate for transmitting a signal of a predetermined frequency is provided so as to alert the anti-theft device, and the user enters the gate with the anti-theft device and the object stored therein. Then, when the anti-theft device main body 3 receives the signal transmitted by the gate, the anti-theft device main body 3 activates an alarm buzzer and issues an alarm.

FIG. 4 shows the main body 3 of the anti-theft device shown in FIG.
FIG. 5 is a schematic plan view showing the configuration of FIG. A lever switch 5 having a lever switch body 5a and a lever 5b is provided near one end of the strip-shaped substrate 4.
However, the lever 5 b is mounted so as to protrude from one side edge of the substrate 4, and the lever switch 5 provides a signal when the lever 5 b tilted toward the substrate 4 rises in the direction away from the substrate 4. Is output.

In the vicinity of the other end of the substrate 4, a receiving coil 10 for receiving a signal transmitted by the above-mentioned gate is mounted, and a signal received by the receiving coil 10 is given to an alarm circuit 6. In the alarm circuit 6, the frequency of the signal transmitted by the gate is set in advance, and when the frequency of the signal given from the receiving coil 10 is the preset frequency, the alarm buzzer 7 is activated to activate the alarm. Emits. The alarm circuit 6
, A signal is also given from the lever switch 5. When a signal is given from the lever switch 5, the alarm circuit 6 activates the alarm buzzer 7 to issue an alarm.

The receiving coil 10 described above is connected to a power supply capacitor 8 via a rectifier circuit 9, and power is supplied to the alarm circuit 6 and alarm buzzer 7 from the power supply capacitor 8. The receiving coil 10 is supplied with an electromagnetic wave from any of the power supply devices 2, 2,... Shown in FIG. Then, the electric power is supplied to the power supply capacitor 8, and the electric charge is accumulated in the power supply capacitor 8.

FIG. 6 is a side view of the power supply device 2 shown in FIG. The power supply device 2 includes the above-described anti-theft device 1 (FIG. 2).
Similarly, a transparent fitting member 21 having a plate portion 24 provided on one side portion of a U-shaped frame portion 23 is provided with legs 27, 27 from the short side edge of the bottomed rectangular cylinder. An opaque lid member 22 formed by extending is externally fitted, and the lid member 22 and the fitting member 21 are
The dimensions are substantially the same as the dimensions of the lid member 12 and the fitting member 11 provided in the anti-theft device 1. A power supply device main body 26, which will be described later, is mounted in the cover member 22. The power supply device main body 26 has a cord 25 for receiving power from an external power supply (not shown).
However, they are connected by penetrating the lid member 22.

FIG. 7 is a block diagram showing the configuration of the power supply device main body 26, in which 31 is an oscillation circuit. Oscillation circuit 31
Is configured to oscillate a signal having a frequency different from the frequency of the signal transmitted from the gate described above. The signal oscillated by the oscillation circuit 31 is supplied to the drive circuit 32.
The oscillation circuit 31 and the drive circuit 32 are supplied with power from an external power supply via the cord 25 (see FIG. 6). The drive circuit 32 amplifies the signal given from the oscillation circuit 31 and sends the amplified signal. Sent from credit coil 30.

As shown in FIG. 4, the aforementioned receiving coil
Reference numeral 10 is attached to the substrate 4 such that the central axis of the receiving coil 10 is orthogonal to the substrate 4, and the substrate 4 is provided in parallel with the side surface of the lid member 12 (see FIG. 2). The transmitting coil 30 shown in FIG. 7 is used for transmitting when the power supply device 2 and the anti-theft device 1 are stored in the display shelf 50 in the cover member 22 (see FIG. 6) so as to overlap each other as shown in FIG. The coil 30 is arranged so that the central axis thereof substantially coincides with the central axis of the receiving coil 10.

Thus, the transmitting coil of the power supply device 2
The electromagnetic waves transmitted from 30 cause induced current in the receiving coils 10, 10,... Of the plurality of anti-theft devices 1, 1,. , 1,... Provided for the power supply capacitors 8, 8,.
The electric charge is accumulated in. .. Can operate semi-permanently, and there is no need to replace the anti-theft device 1 with a new one except when a failure occurs in a part, so that the running cost is low.

On the other hand, the anti-theft device 1 containing the object is
, Are carried away from the power supply devices 2, 2,... During a practical time, the anti-theft device main bodies 3, 3,. .. Operates by the electric charge accumulated in the gate, and when a signal transmitted by the gate is received, an alarm is issued to prevent theft.

In this embodiment, the anti-theft device 1
In addition, the power supply device 2 has a cover member externally fitted so as to be able to advance and retreat to a plastic fitting member in which the object is fitted. However, the present invention is not limited to this. For example, as shown in FIG. A square pillar-shaped anti-theft device main body or a power feeding device main body is erected on one edge portion of the strip-shaped bottom plate, and a predetermined area inside the anti-theft device main body or the power feeding device main body and the bottom plate is made of a synthetic resin transparent sheet or It goes without saying that the present invention can also be applied to a case where a storage portion is formed by covering a translucent sheet with a flexible sheet member bent in a U-shape in plan view.

The above-described power supply device main body 26 is connected to the display shelf 50.
The power supply device may be configured by burying the power supply device in the side wall.

Further, in the present embodiment, a signal having a frequency different from the frequency of the signal transmitted from the gate is transmitted from the transmitting coil 30, but the present invention is not limited to this, and the present invention is not limited to this. Signal transmitted by the transmission coil
The signals transmitted by 30 may have the same frequency as each other, and one of the gate and the transmission coil 30 may continuously transmit the signal, and the other may transmit the signal at a predetermined cycle.
The signal transmitted by the gate and the signal transmitted by the transmission coil 30 have the same frequency, and the gate and the transmission coil
The 30 may transmit signals at different periods from each other. As a result, both signals can be received with high sensitivity by one receiving coil, so that theft prevention reliability is high and the power supply efficiency is high.

In this embodiment, the case where the power supply capacitor 8 is provided as the power storage device is shown. However, the present invention is not limited to this, and a secondary battery is provided as the power storage device. Needless to say, it is good.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the description does not limit the present invention to the structure of the accompanying drawings.

[0039]

As described in detail above, in the present invention,
Since the anti-theft device can be operated semi-permanently, running costs are low. In addition, even if the anti-theft device containing the object is carried away from the power supply device, the anti-theft device itself is activated by the electric charge stored in the power supply capacitor during a practical time. Therefore, when an electromagnetic wave of a predetermined frequency is received, an alarm is issued to prevent theft, and the present invention has an excellent effect.

[Brief description of the drawings]

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

FIG. 2 is a side view of the anti-theft device shown in FIG. 1;

FIG. 3 is a plan view of the anti-theft device shown in FIG. 1;

FIG. 4 is a schematic plan view showing a configuration of the anti-theft device shown in FIG. 2;

FIG. 5 is a block diagram showing a configuration of the anti-theft device shown in FIG. 2;

6 is a side view of the power supply device shown in FIG.

FIG. 7 is a block diagram illustrating a configuration of a power supply device main body.

FIG. 8 is an external perspective view showing a conventional anti-theft device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 anti-theft device 2 power supply device 3 anti-theft device main body 5 lever switch 6 alarm circuit 7 alarm buzzer 8 power supply capacitor 9 rectifier circuit 10 receiving coil 26 power feeding device main body 30 transmitting coil 31 oscillation circuit

Claims (3)

[Claims] A storage section (11) for storing an object to be stolen, a receiving coil (10) for receiving a signal, and whether or not the object is stored in the storage section (11). Is provided, and the receiving coil (10) receives a predetermined signal, or the detector (5) does not store an object in the storage section (11). Anti-theft system comprising an anti-theft device (1) having an anti-theft device main body (3) for outputting an alarm when detected, and a power supply device (2) for supplying power to the anti-theft device (1). The power supply device (2) includes a circuit (31) for generating a signal different from the signal, and a transmission coil (30) for transmitting the generated signal, wherein the anti-theft device main body is provided. (3) is an induced current generated in the receiving coil (10) by a received signal. A rectifier circuit (9) for rectifying the electric current, and a power storage device (8) for a power supply for accumulating electricity by a current rectified by the rectifier circuit (9),
An anti-theft system, wherein the anti-theft system is operated by electricity stored in the power storage device (8). 2. A storage section (11) for storing an object to be stolen, a receiving coil (10) for receiving a signal, and whether an object is stored in the storage section (11). Is provided, and the receiving coil (10) receives a predetermined signal, or the detector (5) does not store an object in the storage section (11). A rectifying circuit (9) for rectifying an induced current generated in the receiving coil (10) by a received signal; A power storage device (8) for storing power by the rectified circuit (9) by a rectified current, and operating by the power stored in the power storage device (8). Theft prevention device characterized by the above-mentioned. 3. A storage section (11) for storing an object to be stolen, a receiving coil (10) for receiving a signal, and whether or not the object is stored in the storage section (11). Is provided, and the receiving coil (10) receives a predetermined signal, or the detector (5) does not store an object in the storage section (11). A power supply device for supplying power to the anti-theft device (1) including an anti-theft device main body (3) that outputs an alarm when detecting that a signal is generated, and a circuit (31) that generates a signal different from the signal. And a transmission coil (30) for transmitting the generated signal.