KR200209442Y1 - Electronic Article Surveillance - Google Patents

Abstract

The present invention relates to an anti-theft device of the present invention, the upper side tag 11 is formed integrally with the seating member (11a) is assembled to the locking device inward, and the upper tag 11 is assembled with one tag (11, 12 and a lower tag 12 having an opening 12a formed at one end thereof so that the locking pin 13 penetrates and is assembled and locked or unlocked by the locking device, and the inner bottom of the lower tag 12. The vibrating magnetic field sensitive sensor 14 and the vibrating magnetic field sensitive sensor 14 which are installed by being adhered in the longitudinal direction to the bottom surface of the lower tag 12 in a state spaced apart from the opening 12a formed at predetermined intervals and operated in a predetermined frequency band. By assembling one end in the horizontal direction and constructing an electric magnetic sensor 15 that operates at a lower frequency than the vibrating magnetic field sensor 14 to assemble the armature sensor and the vibrating magnetic field sensor in one tag. On It is possible to use a wide frequency band, regardless of the frequency of the deployed product anti-theft systems are in Sikkim improves the compatibility of the product anti-theft device.

Description

Anti-theft device {Electronic Article Surveillance}

The present invention relates to a product anti-theft device, in particular, the product is installed at the entrance of the store, and the product for detecting the unauthorized removal of goods through the entrance of the store by transmitting and receiving electrically connected to the transmission and reception antenna connected to the product theft prevention system An anti-theft device.

Electronic Article Surveillance (EAS) includes radio frequency (RF), electronic-magnetic (EM) and acoustic-magnetic technology (AT) depending on the driving method.

The anti-theft device applied to the RF system is operated by transmitting and receiving a predetermined frequency with a transmission and reception antenna installed in the entrance and the like of the store. If the RF-applied anti-theft device is removed from the store's doorway without permission, the transceiving antenna installed at the store's doorway and the RF-applied anti-theft device transmit and receive a predetermined frequency. An alarm is triggered by the prevention system to alert to unauthorized release of goods. The anti-theft device applied to the RF method uses a frequency of 8.2MHz, there is a disadvantage that can not detect the packaging of metal or foil components.

In order to improve the shortcomings of the RF method that cannot detect metal or foil components, the armature method and the vibration field method have appeared. In the armature method, an amorphous metal material is made long and thin in a wire shape, or a reinforcing magnetic material is assembled to the wire shape. The production cost is inexpensive by constructing a product anti-theft device in the shape of wire, but there is a disadvantage in that the sensing distance is short and a false alarm occurs due to the operation at 70Hz to 7.5KHz.

The vibrating magnetic field forms permalloy material in a thin strip to form an anti-theft device. The operating frequency is 58KHz or 60KHz single frequency, which is transmitted and received in a vibration form, so there is no false alarm and it is detected regardless of metal components. The high manufacturing cost and the use of a single frequency is incompatible with other models.

As described above, the conventional anti-theft device is configured to operate at a specific frequency such as an armature method or a vibrating magnetic field method to use the anti-theft product that operates at a specific frequency when a system for transmitting and receiving a specific frequency is not installed in a store. There is a disadvantage that can not be.

The object of the present invention is to provide an anti-theft device that can be used in a wide frequency band by assembling the armature sensor and the vibrating magnetic field sensor in a single tag (pack) regardless of the frequency of use of the product anti-theft system installed in the store have.

Another object of the present invention is to improve the compatibility of the anti-theft device by assembling the armature sensor and the vibrating magnetic field sensor in one tag of the anti-theft device.

1 is an exploded assembly perspective view of an anti-theft device according to the present invention,

2 is an enlarged perspective view of the armature and the vibrating magnetic field sensor shown in FIG.

3 is a cross-sectional view taken along line AA ′ of the armature and vibrating magnetic field sensitive sensors shown in FIG. 2.

<Code Description of Main Parts of Drawing>

11: upper member 11a: seating member

12: lower tag 12a: opening

13: locking pin 14: vibration magnetic field sensor

15: Electromagnetic sensor

The anti-theft device of the present invention is the upper side tag is formed integrally with the seating member is assembled to the locking device inwardly; A lower tag that is assembled with the upper tag to form one tag and that an opening is formed at one end so that the locking pin is penetrated and assembled to lock or unlock the locking device; A vibrating magnetic field sensitive sensor installed in the longitudinal direction to the bottom surface of the lower tag in a state spaced apart from the opening formed in the inner bottom surface of the lower tag at a predetermined interval and operating at a predetermined frequency band; And an armature sensitive sensor that is assembled by being bonded to one end of the vibrating magnetic field sensitive sensor in the longitudinal direction and operates at a lower frequency than the vibrating magnetic field sensitive sensor.

The vibrating magnetic field sensitive sensor and the armature sensitive sensor are separated by a predetermined distance, and the operating frequency band of the vibrating magnetic field sensitive sensor is operated at 50KHz to 60KHz, and the operating frequency band of the armature sensitive sensor is operated at 50Hz to 12.5KHz. The vibrating magnetic field sensor is attached to the case, a first strip formed of a permalloy material assembled inside the case, and a first strip assembled to the case to seal the first strip to the inside of the case. An insulating film to be bonded, a second strip formed of a permalloy material to interact with the first strip, and assembled to the bottom of the insulating film, and when the second strip is assembled, the second film is in close contact with the edge of the insulating film to seal the second strip. It is characterized by consisting of an adhesive tape to be bonded.

The armature-sensitive sensor is bonded to a wire formed of an amorphous material and closely adhered to the bottom surface in the longitudinal direction, and then overlapped to wrap the wire inwardly, and then the bonded end is sandwiched between the insulating film and the adhesive tape of the vibrating magnetic field sensor. It is characterized by consisting of a double-sided adhesive tape is inserted into the adhesive.

Hereinafter, the present invention will be described with reference to the accompanying drawings.

1 is an exploded assembly perspective view of a product anti-theft device according to the present invention, Figure 2 is an enlarged perspective view of the armature and vibrating magnetic field sensor shown in FIG. As shown, the upper tag 11 is formed integrally with the seating member (11a) is assembled to the locking device (not shown) inward, and the tag (11, 12) is assembled with the upper tag (11) In addition, the locking pin 13 is penetrated and assembled so that the lower tag 12 has an opening 12a formed at one end thereof so as to be locked or unlocked by the locking device, and an opening formed at the inner bottom of the lower tag 12. The vibrating magnetic field sensor 14 and the vibrating magnetic field sensor 14, which are installed by being attached to the bottom surface of the lower tag 12 in the longitudinal direction and spaced apart at a predetermined interval from each other and are operated at a predetermined frequency band, Bonded to one side end in the longitudinal direction and is composed of an armature sensitive sensor 15 that operates in a lower frequency band than the vibration magnetic field sensitive sensor (14).

Referring to the configuration and operation of the subject innovation in more detail as follows.

The anti-theft device 10 of the present invention is composed of an upper tag 11, a lower tag 12, a locking pin 13, a vibrating magnetic field sensor 14 and the armature sensor 15. The upper tag 11 is assembled on the lower tag 12 so as to form one tag (11, 12), the vibration magnetic field sensor 14 and the armature sensor 15 is the length of the tag (11, 12) Mounted in the direction and glued.

The upper tag 11 constituting one of the tags 11 and 12 is integrally formed with a seating member 11a into which a locking device (not shown) is assembled. The lower tag 12 has an opening at one end thereof. 12a is formed. The lower tag 12 is assembled with the locking pin 13 penetrating through the opening 12a formed at one end thereof so as to be locked or unlocked by the locking device. When the anti-theft device 10 of the present invention is attached to a product such as woven paper or the like, it is used by being attached between the lower tag 12 and the locking pin 13.

A sensor for generating a frequency for generating an alarm when an unauthorized product is removed from the store through the doorway of the store is assembled inside the product theft prevention device 10. In the sensor of the present invention, the vibrating magnetic field sensitive sensor 14 and the armature sensitive sensor 15 are integrally assembled to one tag 11 and 12. The vibrating magnetic field sensitive sensor 14 and the armature sensitive sensor 15 are integrally assembled to one tag 11 and 12 to operate the vibrating magnetic field sensitive sensor 14 at a frequency range of 50 KHz to 60 KHz, and the electric magnetic sensitive sensor 15. ) Can be operated by operating in the frequency range of 50Hz to 12.5KHz.

Looking at the assembling configuration of the vibrating magnetic field sensitive sensor 14 and the armature sensitive sensor 15 in more detail, the bottom surface of the lower tag 12 in a state spaced at a predetermined interval from the opening 12a formed on the inner bottom of the lower tag 12 The vibrating magnetic field sensor 14 is assembled to be bonded in the longitudinal direction. The armature sensitive sensor 15 is assembled by attaching one end of the vibrating magnetic field sensitive sensor 14 to the bottom surface of the lower tag 12 in a lengthwise direction and inserting one end of the vibrating magnetic field sensitive sensor 14 in the horizontal direction.

The armature sensitive sensor 15 operates in a lower frequency band than the vibrating magnetic field sensitive sensor 14, and vibrates the magnetic field sensitive sensor 14 so that the armature sensitive sensor 14 and the armature sensitive sensor 15 operate normally at respective frequencies of the vibrating magnetic field sensitive sensor 14 and the armature sensitive sensor 15. And the armature-sensitive sensor 15 are assembled with a predetermined distance (W) spaced apart. By adjusting the separation distance W between the vibrating magnetic field sensitive sensor 14 and the armature sensitive sensor 15, the vibrating magnetic field sensitive sensor 14 and the armature sensitive sensor 15 can operate at respective predetermined frequency bands. There will be no.

The vibrating magnetic field sensitive sensor 14, into which the armature sensitive sensor 15 is assembled by attaching one end of the vibrating magnetic field sensitive sensor 14, is largely divided into a case 14a, a first strip 14b, and a second strip 14c. And an adhesive tape 14d. The first strip 14b is assembled inside the case 14a, and the edge of the case 14a is sealed to seal the first strip 14b inside the case 14a after the first strip 14b is assembled. The insulating film 14c is adhered to and adhered thereto.

Thereafter, after assembling the second strip 14d on the bottom surface of the insulating film 14c to interact with the first strip 14b, the adhesive tape is attached to the edge of the insulating film 14c to seal the second strip 14d. 14e is brought into close contact with each other for adhesion. Here, the first strip 14b and the second strip 14d are each formed of a permalloy material.

When the assembling of the vibrating magnetic field sensitive sensor 14 is completed, the wire 15b formed of an amorphous material is closely adhered to the bottom surface of the double-sided adhesive tape 15a in the longitudinal direction and bonded. When the wire 15b is closely adhered to the bottom of the adhesive tape 15a in the longitudinal direction, the adhesive tape 15a is attached to the edge of one end in the longitudinal direction of the case 14a of the vibrating magnetic field sensor 14. Assemble by spaced apart by W).

As described above, by equipping one product anti-theft device with vibration magnetic field sensor and armature-sensing sensor in one tag, the vibration magnetic field method and the armature method are used in a wide frequency band regardless of the operating frequency of the product anti-theft system installed in the store. It can be used to improve the compatibility of the anti-theft device.

As described above, the present invention assembles the armature sensitive sensor and the vibrating magnetic field sensitive sensor into one tag so that they can be used in a wide frequency band regardless of the frequency of use of the anti-theft system installed in the store. To improve the effect.

Claims (6)

In the device for detecting theft of goods, The upper side tag is formed integrally with the seating member is assembled to the locking device inwardly; A lower tag that is assembled with the upper tag to form one tag and that an opening is formed at one end so that the locking pin penetrates and is assembled to lock or unlock the locking device; A vibrating magnetic field sensitive sensor installed in the longitudinal direction on the bottom surface of the lower tag in a state spaced apart from the opening formed in the inner bottom surface of the lower tag at a predetermined interval and operating at a predetermined frequency band; And Anti-theft device comprising an armature sensitive sensor that is assembled to the end of the vibrating magnetic field sensitive sensor so as to be inserted in the horizontal direction and is operated at a lower frequency than the vibrating magnetic field sensitive sensor. The product anti-theft device according to claim 1, wherein the vibrating magnetic field sensitive sensor and the armature sensitive sensor are assembled at a predetermined distance apart from each other. The anti-theft device according to claim 1, wherein the operating frequency band of the vibrating magnetic field sensitive sensor is operated at 50KHz to 60KHz. The anti-theft device of claim 1, wherein the operating frequency band of the armature sensitive sensor is operated at 50 Hz to 12.5 KHz. The vibration magnetic field sensitive sensor of claim 1, further comprising: a case; A first strip formed of a permalloy material assembled inside the case An insulating film adhered to the edges of the case after assembling the first strip to the case to seal the first strip to the inside of the case; A second strip formed of a permalloy material so as to interact with the first strip and assembled to a bottom surface of the insulating film; Anti-theft device, characterized in that consisting of an adhesive tape in close contact with the edge of the insulating film to seal the second strip. The sensor of claim 1, wherein the armature sensitive sensor comprises: a wire formed of an amorphous material; And Anti-theft device, characterized in that consisting of an adhesive tape bonded to the bottom surface in close contact with the wire in the longitudinal direction.