JP3226028B2 - Anti-theft tag, method of attaching and detaching the same, and device for removing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tag for notifying theft of an article such as a commodity when the article is taken out without permission. The present invention relates to an anti-theft tag that can be easily removed from an article. More specifically, the present invention relates to a method of attaching and detaching the tag and a tool for removing the tag.

[0002]

2. Description of the Related Art Conventionally, as this kind of anti-theft tag,
The resonance circuit of the tag attached to the theft monitoring article resonates with the radio wave of a specific frequency from the radio wave transmitting device, and the separation detecting means detects whether the tag has been separated from the theft monitoring article. There is disclosed a theft prevention tag in which a separation notification unit controls a notification sound output unit based on a detection output of the separation detection unit (Japanese Patent Application Laid-Open No. H8-18558).
4). In this anti-theft tag, the resonance circuit portion is formed by forming a conductive metal foil of a predetermined shape on both surfaces of an insulating dielectric thin film by etching or the like. For example, on the thin film surface,
A coil portion formed in a spiral shape by the conductive metal foil and a spiral-shaped center portion of the coil portion are formed with a surface-side planar pattern of the capacitor that is continuous with the coil portion. At the entrance of a store that sells the theft monitoring article, a transmitting antenna and a receiving antenna are erected at a predetermined interval from each other, and these antennas are electrically connected to a control unit.
The control unit is configured to transmit a radio wave having a frequency that resonates in the resonance circuit unit from the transmitting antenna, and to constantly check the signal level of a signal received from the receiving antenna. Further, a speaker for issuing an alarm is connected to the control output of the control unit.

In the anti-theft tag configured as described above, when an article monitored for theft tries to pass between the transmitting antenna and the receiving antenna without being cleared, the radio wave transmitted from the transmitting antenna is transmitted to the anti-theft tag. Resonance occurs in the resonance circuit section of the tag attached to the article, so that the reception antenna receives a reception signal whose reception level is modulated. As a result, the control unit issues a warning from the speaker, and can prevent the uncleared product from being taken out. Anyone attempting shoplifting who knows the existence of this tag will remove this tag before attempting to leave the store. For this reason, the anti-theft tag housed in a protective case made of plastic or the like is provided with a strong adhesive on the lower surface of the protective case and is attached to a product packaging box or the product itself.

[0004]

However, if the anti-theft tag in the protective case is strongly attached to the packaging box of the product or the product itself, if the clerk peels off the tag when the product is purchased properly, The packaging box or the product itself may be damaged, or the adhesive may remain, thereby impairing their appearance. In addition, it becomes difficult to reuse the removed tag.

It is an object of the present invention to provide an anti-theft tag which is difficult to remove from a shoplifter and which is easy to remove from an article handler such as a clerk. Another object of the present invention is to provide an attaching / detaching method which makes it difficult for a person who shoplifts an article to remove the anti-theft tag from the article and makes it easy for a person handling the article such as a clerk to easily remove the tag from the article. Is to do. Still another object of the present invention is to provide a removal tool that can easily remove the anti-theft tag adhered to an article.

[0006]

The invention according to claim 1 is
As shown in FIGS. 1 and 18, the transmission antenna 2 is accommodated in the protective case 11 and attached to the theft monitoring article 20.
In the anti-theft tag 10 provided with the resonance circuit portion 14 that resonates with a radio wave of a specific frequency transmitted from 1, the double-sided adhesive tape 16 is adhered to the lower surface of the protective case 11 and is about 35 degrees or less with respect to the adhesive surface. A stretch release adhesive tape which is peeled off from both the article 20 and the protective case 11 by being pulled at an angle θ, wherein the double-sided adhesive tape 16 has a length of 10 mm or less when the protective case 11 is attached to the article 20. This is an anti-theft tag having an enlargement portion 16a. The stretcher 16a of the adhesive tape is firmly gripped by the detaching tool 29 capable of gripping the stretcher 16a, and the adhesive tape 1 as shown in FIGS.
6, the width of the adhesive tape is reduced, and the adhesive tape 1
6 is peeled off from both the article 20 and the protective case 11.

According to a fifth aspect of the present invention, as shown in FIGS. 5 and 6, a resonance circuit portion 14 which resonates with a radio wave of a specific frequency transmitted from a transmission antenna 21 is housed in a protective case 11 to prevent theft. After bonding one main surface of the double-sided adhesive tape 16 to the lower surface of the protective case 11 of the tag 10 and bonding the other main surface of the double-sided adhesive tape 16 to the theft monitoring article 20, the protective case 11 is removed from the article 20. In the attaching / detaching method of the anti-theft tag to be detached, the double-sided adhesive tape 16 is a stretch-release adhesive tape which is peeled off from both the article 20 and the protective case 11 by being pulled at an angle θ of about 35 ° or less with respect to the adhesive surface. One main surface of the main part of the double-sided adhesive tape 16 is adhered to the lower surface of the protective case 11, and when the protective case 11 is attached to the article 20 with the double-sided adhesive tape 16, In the remaining portion of the double-sided adhesive tape 16 protruding from the lower surface of the tape 11, a folded loop portion 16b of a tape having a protruding length of 5 mm or less is provided, and the tip portion 30b of the needle-shaped removal tool 30 is inserted into the loop portion 16b. The anti-theft tag is characterized in that the protective case 11 is detached from the article 20 by grasping the mounting portion 30a and the tip portion 30b and pulling the double-sided adhesive tape 16 at an angle θ of about 35 ° or less with respect to the adhesive surface. It is a method of attaching and detaching. According to this method, the adhesive tape 16 is not pulled without using the removal tool 30 having a needle-like tip, so that it is possible to more reliably prevent the anti-theft tag 10 from being peeled off from the article 20 without fail.

[0008] The invention according to claim 10 is shown in FIGS.
As shown in FIG.
1 provided on any one or both of 7, 18, and 19
Or it has the engaging part 31d, 32b which can be engaged with two or more groove | channels 11d, 18a, 19c, and the extension tool 1 in the state which engaged the engaging parts 31d, 32b with the groove | channels 11d, 18a, 19c.
7, 7, and 19 are anti-theft tag removers 31, 32 configured to separate and pull the protective case 11, together with the double-sided adhesive tape 16. This removal tool 31,
By using 32, a person handling the article such as a clerk can easily pull the adhesive tape 16 and peel off the anti-theft tag 10 from the article 20.

[0009]

Next, a first embodiment of the present invention will be described. As shown in FIGS. 1 and 2, the anti-theft tag 10 has a plastic protective case 11, in which a resonant circuit comprising an antenna coil 12 and capacitors 13 connected to both ends of the antenna coil. 14 are accommodated. The protective case 11 has an upper lid 11a
And a base 11b. On the lower surface of the protective case 11, a double-sided adhesive tape 16 is provided. The protective case 11 of the tag 10 attaches the adhesive tape 16 to the theft monitoring article 20.
Mounted by Since the pressure-sensitive adhesive is applied to the adhesive tape 16 as described later, the protective case 11 is pressed against the article 20 with the force of a finger for about 30 seconds when bonding. The antenna coil 12 is formed by winding a conductive wire around a magnetic core 15 made of a plate-shaped magnetic material. The article 20 is, for example, an expensive commodity that can be easily carried. In this embodiment, as shown in FIG. 1 and FIG.
Numeral 0 is formed so that the corner radius formed by the side surface and the upper surface of the protective case 11 is 1/5 or more, preferably 2/3 or more of the thickness of the protective case (11). You. In conjunction with or separately from this rounding radius, the angle α formed by the side surface and the lower surface of the protective case 11 is set to 8
Preferably, it is formed at 0 degrees or less. This angle α is 60
It is more preferable that the temperature is not more than the degree. This makes it difficult for a person who tries to shoplift to grip the protective case 11, and further prevents unauthorized removal of the tag.

The double-sided adhesive tape 16 preferably has a width of 10 to 10.
It is more preferably 20 mm and made in a strip shape. The strip shape is preferable because the adhesive tape 16 is more easily stretched. The length of the adhesive tape and the number of strips in the form of strips are determined according to the area of the lower surface of the protective case. If one strip of adhesive tape cannot cover the lower surface of the protective case, it is preferable to arrange a plurality of adhesive tapes 16 in a direction perpendicular to the stretching direction. In FIG. 1, three strip-shaped adhesive tapes 16 are arranged. In addition, the adhesive tape 16 attaches the protective case 11 to the article 20.
It has a stretched portion 16a of an adhesive tape having a length of 10 mm or less when attached to the device. No adhesive layer is provided on the stretched portion 16a. The length of the extension 16a is 10
If it exceeds mm, a person attempting shoplifting can pull the adhesive tape 16 with fingers, which is not preferable. Preferably 3 to
5 mm.

As shown in FIG. 18, the resonance circuit 14 resonates with a radio wave of a specific frequency transmitted from, for example, a transmission antenna 21 provided upright at a doorway of a store. At this entrance, a receiving antenna 23 is erected at a predetermined interval from the transmitting antenna 21. Receiving antenna 23
Is connected to the control input of the control unit 24, and the transmission antenna 21 is connected to the control output of the control unit 24. The control unit 24
Is connected to a speaker 26 that issues an alarm. The control unit 24 is configured to cause the transmission antenna 13 to transmit a radio wave having a frequency that resonates in the resonance circuit unit 14 and to always check the signal level of the reception signal from the reception antenna 23. In other words, the signal level when the radio wave transmitted from the transmission antenna 13 is directly received by the reception antenna 23 is set as a reference value, and the radio wave transmitted from the transmission antenna 13 resonates in the resonance circuit unit 14 of the tag 12 and the reception antenna 23 Is received, the signal level becomes higher than the reference value by a predetermined value. At this time, the control unit 24 is configured to make the speaker 26 sound.

The double-sided adhesive tape 16 is about 3
JP-A-8-507941 and JP-A-9-502213 have the property of peeling off from both the article 20 and the protective case 11 by pulling at an angle θ of 5 degrees or less, preferably about 10 degrees or less. Stretching adhesive tape. When the angle exceeds about 35 degrees, the tensile force is not applied to the entire adhesive tape 16, and the adhesive tape 16
0 and the protective case 11 do not peel off. The adhesive tape 16 is composed of a support having a thickness of about 0.75 mm to about 25 mm and a pressure-sensitive adhesive layer applied to both sides of the support. The support comprises a layer of polymer foam and / or a layer of solid polymer film, having a Young's modulus of at least 2500 psi, and from about 50% to about 1% at break.
200% longitudinal elongation, preferably about 10 l
b. / Ft ³ to about 15 lb. / Ft ³ .
Polyolefins such as polyethylene, polypropylene and polybutadiene, including high-density polyethylene, low-density polyethylene, linear low-density polyethylene, and linear ultra-low-density polyethylene; Vinyl copolymers such as vinyl chloride and polyvinyl acetate; olefins such as ethylene / methacrylate copolymer, ethylene / vinyl acetate copolymer, acrylonitrile-butadiene-styrene copolymer, and ethylene / propylene copolymer Copolymers; acrylic polymers and acrylic copolymers; polyurethanes; and combinations thereof. Further, the above-mentioned polymers are polypropylene / polyethylene, polyurethane /
Mixtures or blends of plastic and elastomeric materials such as polyolefins, polyurethane / polycarbonate, polyurethane / polyester.

The pressure-sensitive adhesive layer has a peeling speed of 12.7 cm /
Min in PSTC-1, PSTC-3 and ASTM D90
At 180 ° peel angle, measured by 3-83, about 4
N / dm to about 200 N / dm, preferably about 25 N / d
It has adhesive properties ranging from m to about 100 N / dm.
The pressure-sensitive adhesive layer has a thickness of about 15 μm to about 1 mm, and includes a sticky rubber adhesive such as natural rubber; olefin; silicone; polyisoprene; polybutadiene; Synthetic rubber adhesives such as isoprene-styrene, styrene-ethylene-butylene-
Styrene and styrene-butadiene-styrene block copolymers and other synthetic elastomers; and radiation polymerization,
Sticky or non-stick acrylic adhesives such as copolymers of isooctyl acrylate and acrylic acid obtained by solution, suspension or emulsion polymerization are included.

As shown in FIG. 1 and FIG.
When the protective case 11 is peeled off after the protective case 11 is attached by the step 6, the protective case 11 is pressed against the article 20 by a finger or the like so that the protective case 11 does not fly with the adhesive tape when peeled off. The stretched portion 16a of the double-sided adhesive tape 16 is sandwiched by the stretcher 29 and is about 35 degrees or less, preferably about 1
Pull at an angle θ of 0 ° or less. Thereby, the adhesive tape 16
Stretches while reducing the width of the support, which causes acute-angle crack growth in the support as well as fracture of the vitreous material. This crack growth causes brittle delamination of the adhesive, which occurs with a slight force at the interface between the adhesive tape 16 and the protective case 11 and the article 20 without breaking the support. , Without leaving any residue of the pressure-sensitive adhesive on both the article 20 and the protective case 11, and without damaging both the article 20 and the protective case 11. After the adhesive tape 16 has been peeled off, it does not return to its original shape or dimensions due to the elastomeric properties of the support.

Next, a second embodiment of the present invention will be described with reference to FIGS.
An embodiment will be described. The configuration of the double-sided adhesive tape 16 is the same as in the first embodiment. In this embodiment, as shown in FIG. 5, a part of the peripheral edge of the protective case 11 is formed so as to protrude.
The adhesive tape 16 is provided on the lower surface of the protective case 11 so that the folded loop 16b of the adhesive tape 16 is disposed immediately below 1c. That is, the folded loop 16b protrudes from the lower surface of the protective case with a length of 5 mm or less. Preferably it is 3-5 mm. In this embodiment, a removal tool 30 shown in FIG. 6 is used. The removal tool 30 has a needle-like tip portion 30b and a mounting portion 30a. After attaching the protective case 11 with the adhesive tape 16 and removing the protective case 11, the loop 1
6b, by inserting the distal end portion 30b of the removal tool 30, grasping the mounting portion 30a and the distal end portion 30b, and pulling the adhesive tape 16 at an angle θ of about 35 degrees or less with respect to the adhesive surface.
The protective case 11 can be removed from the article 20.

Next, a third embodiment of the present invention will be described with reference to FIGS.
An embodiment will be described. The configuration of the double-sided adhesive tape 16 is the same as in the first embodiment. In this embodiment, a pair of grooves 11d, 11d are provided on the upper edge of the protective case 11, as shown in FIG. Three strip-shaped double-sided adhesive tapes 16 are provided on the lower surface of the protective case 11.
One main surface of the main part is adhered. This adhesive tape 1
An adhesive layer is also provided on both surfaces of the remaining portion of No. 6. A piece of paper 16c is attached to one of the remaining portions of the middle adhesive tape 16 so as to reduce the adhesive force of a later-described stretching tool 17 to the side of the protective case. Next, as shown in FIG. 8, when the protective case 11 is attached to an article (not shown) with the double-sided adhesive tape 16, one main surface of the remaining part of the double-sided adhesive tape 16 protruding from the lower surface of the protective case 11 is connected to the protective case 11. Glue to the side. Next, as shown in FIG. 9, a stretching tool 17 is bonded to the other main surface of the remaining portion. The pair of grooves 11
d, 11d may be any one, and a stretching tool 1
7 may be provided. The lower side of the stretcher 17 on the non-adhesive side has an inclined surface 17 so that it can easily fall down when the stretcher is peeled off.
a.

FIG. 10 shows a detaching tool 31 for pulling the stretching tool 17. The removal tool 31 has a shape like a scissors, and the two arms 31a and 31b support the fulcrum 31c.
Pivoted at. The tip of the arm 31a is bifurcated, and the tip of the arm 31b is shaped like a shovel 31e. The leading ends of the forks serve as engaging portions 31d, and the interval between them is equal to the interval between the grooves 11d, and the engaging portions 31d have a width that can be inserted into the grooves 11d. As in the case of ordinary scissors, the removal tool 31 grips the arms 31a and 31b close to each other so that the distal ends 31d, 31d and the shovel 31e can grip the stretching tool 17 (FIG. 12).
The shape of the cross section of the grooves 11d, 11d is not a square as shown, but a trapezoid, a triangle, a semicircle, or the like, and the shapes and dimensions of the cross sections of the engaging portions 31d, 31d of the removal tool 31 are shown. If the shape and the size of the cross section of the groove 11d are the same, it is possible to prevent the protective case 11 from being peeled off without using the removal tool 31. As shown in FIG. 11, after attaching the stretching tool 17 to the other main surface of the remaining portion of the adhesive tape 16, the distal ends 31d, 31d of the removing tool 31 are inserted into the grooves 11d, 11d, and the arm 31a is pointed by an arrow. And peel off the stretching tool 17 from the side of the protective case 11 as shown by the broken line. Since the paper piece 16c shown in FIG. 7 is interposed between the adhesive tape and the side surface of the protective case, the stretching tool 17 is easily peeled off by the leverage of the removing tool 31. Next, as shown in FIG.
1d and the shovel 31e, grasp the stretching tool 17 and pull it as shown by the broken line in the figure, and if the adhesive tape 16 is stretched, the protective case 11
Peels off.

Next, a fourth embodiment of the present invention will be described with reference to FIGS. Double-sided adhesive tape 16
Is similar to that of the first embodiment. The method of attaching the enlarger 18 to the protective case 11 is the same as in the third embodiment. In this embodiment, vertical grooves 18a, 18a are formed on both sides of the stretching tool 18, as shown in FIGS. In this embodiment, a removal tool 32 shown in FIG. 15 is used. The removal tool 32 has a handle 32a and engaging portions 32b, 32b fixed to the handle. The engaging portions 32b are formed in a pair of L-shaped hooks. When the protective case 11 is peeled off after the protective case 11 is attached with the adhesive tape 16, the engaging portions 32b, 32b are inserted into the grooves 18 from above.
a, 18a and pulled in the direction of the arrow in FIG.
When the adhesive tape 16 is stretched, the protective case 11 is peeled off from the article 20 as in the above embodiment. At this time, a piece of paper or the like is sandwiched between the adhesive tape surface on the side adhered to the side surface of the protective case 11 and a non-adhesive portion is formed as in the third embodiment, so that the stretching tool 18 can be protected. Case 11
Easy to peel off.

Next, a fifth embodiment of the present invention will be described with reference to FIGS. Double-sided adhesive tape 1
The configuration of No. 6 is the same as that of the first embodiment.
The method of attaching the enlarger 18 to the protective case 11 is the same as in the third embodiment. In this embodiment,
As shown in FIGS. 16 and 17, the stretching tool 19 has a central piece 19a and a holding piece 19b surrounding three sides of the central piece 19a. On both sides of the holding piece 19b, a vertical groove 19c,
19c is formed. The remaining portion of the adhesive tape 16 is sandwiched between the center piece 19a and the holding piece 19b so that the adhesive tape 16 has a hat-shaped cross section when viewed from above.
At 19d the two pieces merge. The presence of the central piece 19a weakens the adhesive strength of the adhesive tape 16 to the side of the protective case. In this embodiment, the same removal tool 32 shown in FIG. 15 as in the fourth embodiment is used, and the protection case 11 is attached and detached in the same manner as in the fourth embodiment.

[0020]

As described above, conventionally, after a tag for protection against theft contained in a protective case is strongly attached to a packaging box of a product or the product itself, if the product is purchased properly, a clerk is required. When the tag is peeled off, the packaging box or the product itself is damaged, or the adhesive remains, and those that have lost their appearance are pulled at an angle of about 35 degrees or less with respect to the bonding surface of the present invention. The use of a stretch-release adhesive tape that gives rise to peeling properties makes it difficult for the person who shoplifts the article to remove the anti-theft tag from the article. A person can easily remove this tag from the article. Further, according to the anti-theft tag and the method of attaching and detaching the tag according to the present invention, there is an advantage that the tag can be reused if the peeled-off tag is adhered to the article with the above-mentioned stretch peeling adhesive tape.

[Brief description of the drawings]

FIG. 1 is a sectional view of the anti-theft tag according to the first embodiment, taken along the line BB in FIG. 2;

FIG. 2 is a sectional view taken along line AA of FIG. 1;

FIG. 3 is a view corresponding to FIG. 2 in a state where the double-sided adhesive tape is pulled.

FIG. 4 is a perspective view of the anti-theft tag of FIG. 1;

FIG. 5 is a view corresponding to FIG. 1 of the anti-theft tag of the invention according to the second embodiment;

FIG. 6 is a perspective view of a removal tool for peeling off the adhesive tape of the anti-theft tag shown in FIG. 2;

FIG. 7 is a perspective view of the anti-theft tag of the third embodiment before the remaining portion of the adhesive tape is bonded.

FIG. 8 is a perspective view after the remaining portion of the adhesive tape is adhered.

FIG. 9 is a perspective view showing a state where a stretching tool is adhered to the remaining portion of the adhesive tape.

FIG. 10 is a perspective view of a removal tool used in the invention of the third embodiment.

FIG. 11 is a view showing a state in which the stretching tool is peeled off by using the removal tool.

FIG. 12 is a view showing a state in which a stretching tool is pulled together with an adhesive tape using the removal tool.

FIG. 13 is a plan view of the anti-theft tag according to the fourth embodiment of the present invention.

FIG. 14 is a side view thereof.

FIG. 15 is a plan view of a removal tool used in the inventions of the fourth and fifth embodiments.

FIG. 16 is a plan view of the anti-theft tag according to the invention of the fifth embodiment.

FIG. 17 is a sectional view of a principal part taken along line CC of FIG. 16;

FIG. 18 is a configuration diagram of a tag device for preventing theft of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Anti-theft tag 11 Protective case 12 Antenna coil 13 Capacitor 14 Resonant circuit 16 Double-sided adhesive tape 16a Adhesive tape stretched portion 16b Adhesive tape folded loop portion 17, 18, 19 Stretcher 20 Article 21 Transmitting antenna 29 , 30, 31, 32 Removal tool 30a Tip 30b Attachment 31d, 32b Engagement

Continued on the front page (72) Inventor Masami Miyake 1-5-1, Otemachi, Chiyoda-ku, Tokyo Mitsubishi Materials Corporation General Research Laboratory (72) Inventor Seiro Yawata 1-6-1, Otemachi, Chiyoda-ku, Tokyo (56) References JP-A-8-185584 (JP, A) JP-A-8-507941 (JP, A) JP-A-9-502213 (JP, A) (58) Fields surveyed ( Int.Cl. ⁷ , DB name) G08B 13/24 C09J 7/02

Claims (10)

(57) [Claims] A resonance circuit unit (14) housed in a protective case (11) and attached to an article (20) for theft monitoring and resonating with a radio wave of a specific frequency transmitted from a transmission antenna (21). In the anti-theft tag, a double-sided adhesive tape (16) is adhered to the lower surface of the protective case (11) and pulled at an angle (θ) of about 35 degrees or less with respect to the adhered surface, so that the article (20) and the A stretch release adhesive tape that is peeled off from both sides of the protective case (11), wherein the double-sided adhesive tape (16) wraps the protective case (11) with the article (2).
An anti-theft tag having a stretched portion (16a, 16b) of an adhesive tape having a length of 10 mm or less when attached to (0). 2. The anti-theft tag according to claim 1, wherein a rounded radius of a corner formed by a side surface and an upper surface of the protective case is at least 1/5 of a thickness of the protective case. 3. The anti-theft tag according to claim 1, wherein an angle (α) formed between a side surface and a lower surface of the protective case (11) is 80 degrees or less. 4. A protective case (11) in which a plurality of stretch release adhesive tapes (16) are formed in a strip shape in a direction perpendicular to the stretching direction.
The anti-theft tag according to claim 1, which is arranged on a lower surface of the tag. 5. A protection circuit for resonating with a radio wave of a specific frequency transmitted from a transmission antenna.
One main surface of the double-sided adhesive tape (16) is adhered to the lower surface of the protective case of the anti-theft tag (10) accommodated in the anti-theft tag (10), and the double-sided adhesive tape (16) is attached to the theft monitoring article (20). In the method of attaching and detaching the anti-theft tag for removing the protective case (11) from the article (20) after bonding the other main surface, the double-sided adhesive tape (16) has an angle of about 35 degrees or less with respect to the adhesive surface. Article (20) and protective case by pulling at an angle (θ)
(11) is a stretch peeling adhesive tape that is peeled off from both sides, wherein one main surface of a main part of the double-sided adhesive tape (16) is adhered to the lower surface of the protective case (11), and the protective case (11 ) Is attached to the article (20) with the double-sided adhesive tape (16), the remaining part of the double-sided adhesive tape (16) that protrudes from the lower surface of the protective case (11), and a folded loop of a tape having a length of 5 mm or less. Part (16b), the tip (30b) of a needle-shaped removal tool (30) is inserted into the loop part (16b), and the double-sided adhesive tape (16) is about 35 A method for attaching and detaching an anti-theft tag, wherein the protective case (11) is detached from the article (20) by pulling the protective case (11) at an angle (θ) of a degree or less. 6. A protective case (11) for resonating with a radio wave of a specific frequency transmitted from a transmitting antenna (21).
One main surface of a double-sided adhesive tape (16) is adhered to the lower surface of the protective case of the anti-theft tag accommodated in the other, and the other main surface of the double-sided adhesive tape (16) is attached to the theft monitoring article (11). The method for attaching and detaching the anti-theft tag for removing the protective case (11) from the article (20) after bonding the surfaces, wherein the double-sided adhesive tape (16) has an angle (θ ) And protective case
(11) is a stretch peeling adhesive tape that is peeled off from both sides, wherein one main surface of a main part of the double-sided adhesive tape (16) is adhered to the lower surface of the protective case (11), and the protective case (11 ) Is attached to the article (20) with the double-sided adhesive tape (16), and the remaining part of the double-sided adhesive tape (16) protruding from the lower surface of the protective case (11) is extended.
(17,18,19) is attached adjacent to the protective case (11), and the stretcher (17,18,19) together with the double-sided adhesive tape (16) is about 35 degrees or less with respect to the adhesive surface. The protective case (11) is removed from the article (20) by pulling at an angle (θ). 7. A double-sided adhesive tape, wherein one main surface of the remaining portion is bonded to a side surface of the protective case, and a stretching tool is bonded to the other main surface of the remaining portion. 6. A method for attaching and detaching the anti-theft tag according to 6. 8. A method for attaching and detaching an anti-theft tag according to claim 7, wherein a part of one main surface of the remaining portion of the double-sided adhesive tape (16) is not adhered to a side surface of the protective case (11). . 9. A side face of a protective case (11) to which one main surface of the remaining part of the double-sided adhesive tape (16) is adhered or a stretching tool (17,
18, 19) in one or both grooves.
d, 18a, 19c), and the engaging portions (31d, 32b) of the removal tool (31, 32) having the engaging portions (31d, 32b) engageable with the grooves (11d, 18a, 19c). The groove (1
The theft according to claim 7 or 8, wherein the stretching tool (17, 18, 19) is peeled off from the side of the protective case (11) together with the double-sided adhesive tape (16) by engaging with the 1d, 18a, 19c). How to attach / detach a tag for prevention. 10. The side of the protective case (11) or a stretching tool
Engaging portions (31d, 32b) engageable with one or more grooves (11d, 18a, 19c) provided in one or both of (17, 18, 19)
With the engagement portions (31d, 32b) engaged with the grooves (11d, 18a, 19c), a stretching tool (17, 18, 19) is attached to a double-sided adhesive tape.
An anti-theft tag remover configured to be pulled apart from the protective case (11) together with (16).