JP2001216488A - Electronic tag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure for surely destroying an electronic tag when the electronic tag is tried to be released from an object to be attached. SOLUTION: A winding start part 23 and a winding end part 24 of a lead wire 22 wound around a protruding part 32 of a planar bobbin 31 are guided through notched parts 41 and 41 to the side of another surface 31b of the planar bobbin 31. The winding start part 23 and the winding end part 24 of the lead wire 22 guided to the side of the other surface 31b of the planar bobbin 31 are spread over a hole part 33 so as to mutually cross. Middle parts 25 and 25 between the winding start part 23 and the winding end part 24 of the lead wire 22 are spread between a 3rd projecting part 37 and a 5th projecting part 39 and between a 6th projecting part 40 and a 4th projecting part 38 on the side of the other surface 31b of the planar bobbin 31. The other surface 31b of the planar bobbin 31, a circuit part 11, the winding start part 23, the winding end part 24 and the middle parts 25 and 25 are adhered to a second adhesive layer.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic tag which stores information given to an object such as an article and is mounted on the object.

[0002]

2. Description of the Related Art A bar code has been used as a system for reading and identifying information given to an object such as an article, but can handle a larger amount of information and has excellent environmental resistance. In addition, an electronic tag system called a data carrier system capable of remote reading has begun to be used. This electronic tag identification system is composed of a transponder called an electronic tag attached to an object to be mounted, and an interrogator connected to the host. Magnetics between the transponder and the interrogator, a dielectric electromagnetic field, It is characterized in that communication is performed in a non-contact manner via a transmission medium such as a microwave.

There are various information transmission systems of the electronic tag identification system. The present invention relates to a microwave system. In this microwave system, energy of a transmission signal from an interrogator is used as driving power of a transponder. Can be used. For this reason, the microwave method has an advantage that, unlike the case where a battery is used as a driving source, there is no fear that the response capability is degraded due to the approaching end of the battery life or the use limit is not reached.

An electronic tag (responder) in an electronic tag identification system has an antenna unit for transmitting and receiving signals to and from an interrogator, and a circuit unit. It is attached and attached. A circuit unit that stores information given to the object to be mounted;
For example, it has an IC chip or the like.

[0005]

By the way, an electronic tag (circuit portion) attached to an object to be mounted is stored with information given to the object itself to which the electronic tag is attached. If the electronic tag once pasted is peeled off from the object to be mounted and can be replaced with another object to be mounted, incorrect information is recognized by the electronic tag identification system, It has an adverse effect on the handling of goods. Therefore, it is necessary to have a structure in which the electronic tag once attached to the mounted object is peeled off from the mounted object and cannot be used again.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and is intended to remove an electronic tag from an object so as to prevent the electronic tag once attached to the object from being reused. It is an object of the present invention to provide a structure that can be reliably destroyed.

[0007]

An electronic tag according to the present invention comprises a circuit section including an element for storing information, and an antenna section for transmitting and receiving signals, comprising a conductor electrically connected to the circuit section. And a plate-shaped bobbin on which a conductor is wound in a coil shape on one surface side, and a part of the conductor is stretched on the other surface side of the plate-shaped bobbin, The internal component is characterized in that it is attached to the adhesive layer on the other surface side of the plate-shaped bobbin.

[0008] As described above, the electronic tag according to the present invention has an internal part provided with a circuit section, an antenna section, and a plate-shaped bobbin, and the other surface of the plate-shaped bobbin has a lead wire. A part is stretched, and the internal component is attached to the adhesive layer on the other surface side of the plate-shaped bobbin, so that the electronic tag (internal component) attached to the object is removed. When the plate bobbin is to be peeled from the adhesive layer, a part of the conductive wire stretched on the other surface side of the plate bobbin is broken, and internal components are destroyed. As a result, even if an attempt is made to attach and use the removed electronic tag again, it becomes impossible to transmit a signal from the electronic tag side, and the electronic tag cannot be used again. Further, since the conductor forming the antenna unit is wound around the plate-shaped bobbin, handling of the antenna unit is facilitated and damage to the conductor during manufacture can be prevented.

[0009] A part of the conductor is a winding start portion and a winding end portion of the conductor, and a hole penetrating the plate bobbin is formed inside a portion of the plate bobbin where the conductor is wound. The winding start portion and winding end portion of the conductor are stretched over the hole on the other surface side of the plate-shaped bobbin, and the circuit portion is stretched over the conductor portion stretched at the position of the hole. On the other hand, it is preferable that the plate-shaped bobbin is electrically connected in a state where the plate-shaped bobbin is placed on one side.
In this way, a part of the conducting wire is a winding start portion and a winding end portion of the conducting wire, and a hole portion passing through the plate bobbin is formed inside a portion where the conducting wire of the plate bobbin is wound,
The winding start portion and the winding end portion of the conductor are stretched over the hole on the other surface side of the plate-shaped bobbin, and the circuit portion is arranged with respect to the wire portion stretched at the position of the hole. By electrically connecting the plate-shaped bobbin with the plate-mounted bobbin placed on one side, the position of the conductive wire is determined by the plate-shaped bobbin, and the process of electrically connecting the circuit portion to the conductive wire is automated. It is possible to improve the productivity of the electronic tag. Further, since the winding start portion and the winding end portion of the conductive wire are adhered to the adhesive layer, a plurality of conductive wire portions are stretched on the other surface side of the plate-shaped bobbin, and when the plate-shaped bobbin is peeled off from the adhesive layer. The probability of disconnection of the conductor increases. Therefore, since the number of locations where the conductive wire stretched over the other surface side of the plate-shaped bobbin is easily broken increases, the conductive wire can be reliably disconnected.

[0010] As a part of the conductor, it is preferable that an intermediate portion between the winding start portion and the winding end portion of the conductor is stretched on the other surface side of the plate-shaped bobbin. In this way, as a part of the conductor, the middle part between the winding start part and the winding end part of the conductor is stretched on the other surface side of the plate-shaped bobbin, so that the winding start part and the winding end of the conductor are wound. Since the middle part between the parts is adhered to the adhesive layer, when the plate-shaped bobbin is peeled from the adhesive layer, positively disconnect the middle part between the winding start part and the winding end part of the conductor. Can be realized.

[0011] Further, on one surface side of the plate-shaped bobbin, an adhesive layer to which a conductive wire wound on one surface side of the plate-shaped bobbin is adhered is further adhered, and on one surface side of the plate-shaped bobbin. It is preferable that an insulating sheet is attached to the outside of the adhesive layer to which the conductive wire wound on the adhesive layer adheres. In this manner, on one surface side of the plate-shaped bobbin, an adhesive layer to which a conductive wire wound on one surface side of the plate-shaped bobbin is further adhered is wound on one surface side of the plate-shaped bobbin. When the insulating sheet is attached to the outside of the adhesive layer to which the conductive wire adheres, when the insulating sheet is to be peeled off to remove the electronic tag attached to the object, one surface of the plate-shaped bobbin is removed. A part of the conductive wire wound on the side can be disconnected. Therefore, the number of locations in the conductor that is easily broken is further increased, so that the conductor can be more reliably broken.

The adhesive strength of the adhesive layer to which the internal component is adhered on the other surface side of the plate bobbin is smaller than the adhesive force of the adhesive layer to which the conductive wire wound on one surface side of the plate bobbin adheres. It is preferable that the setting is strong. In this manner, the adhesive strength of the adhesive layer to which the internal component is adhered on the other surface side of the plate-shaped bobbin is stronger than the adhesive force of the adhesive layer to which the conductive wire wound on one surface side of the plate-shaped bobbin adheres. By setting, when it is attempted to peel off the insulating sheet to remove the electronic tag attached to the mounted object, the conductive wire wound on one surface side of the plate-shaped bobbin is attached to the adhesive layer on the insulating sheet side The insulating sheet will be peeled off in a state of sticking,
Since the internal component is kept in the state of being adhered to the adhesive layer on the mounted object side, first, a part of the conductive wire wound on one surface side of the plate-shaped bobbin can be surely disconnected.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of an electronic tag according to the present invention will be described below in detail with reference to the drawings.

First, the internal components of the electronic tag constituting the main part of this embodiment will be described. FIG. 1 is a plan view showing the configuration of the internal components included in the electronic tag according to the embodiment of the present invention, FIG. 2 is a rear view showing the configuration of the internal components, and FIG. It is a perspective view which shows a structure of.

The internal component 10 of the electronic tag 1 is shown in FIGS.
As shown in FIG. 3, the circuit unit 11, the antenna unit 21,
And a plate-shaped bobbin 31. The circuit section 11 includes an IC chip 12 as an element in which information on the mounted object 2 is stored, and a circuit board 1 on which the IC chip 12 is mounted.
And 3. The circuit board 13 is provided with a pair of connection terminals 14, 14.
Are formed by a conductive pattern formed on the circuit board 13, wire bonding, or the like (neither is shown).
It is electrically connected to a pad (not shown) of the C chip 12.

The antenna section 21 is formed by winding a conductive wire 22 in a coil shape, and is for transmitting and receiving signals and the like including information stored in the IC chip 12. In the present embodiment, a copper wire having a wire diameter of about 20 μm is used as the conductive wire 22, and an insulating layer is provided on the outer periphery of the copper wire. Furthermore, a coating is formed on the outer periphery of the insulating layer with a material that can be thermally welded. After winding the conductive wire 22 into a coil shape, heat treatment is performed to weld the coatings together to separate the conductive wire 22. I try not to.

As shown in FIG. 4, the plate-shaped bobbin 31 is made of a non-conductive thin plate member made of a synthetic resin having a circular shape in a plan view, and the conductive wire 22 is formed on one surface 31a of the plate-shaped bobbin 31. A protruding portion 32 for winding is formed. The protrusion 32 has a circular shape in plan view.
As shown in FIG. 3, the conducting wire 22 is wound in a coil shape. A hole 33 penetrating the plate-shaped bobbin 31 is formed inside a portion where the protruding portion 32 of the plate-shaped bobbin 31 is formed, that is, inside a portion where the conductive wire 22 is wound. Has a rectangular shape.

On the other surface 31 b of the plate-shaped bobbin 31, grooves 34, 34 for accommodating the winding start portion 23 and the winding end portion 24 of the conductive wire 22 are provided so as to straddle the hole 33. The grooves 34 have a width sufficiently larger than the diameter of the conductive wire 22.

On the outer peripheral portion of the plate-shaped bobbin 31, a conductive wire 22 is provided.
A first protrusion 35 for tangling and fixing the winding start portion 23, a second protrusion 36 for tangling and fixing the tip of the winding end portion 24 of the conductive wire 22, and a winding start portion for the conductive wire 22 Intermediate portion 2 between 23 and winding end portion 24
Third to sixth protrusions 37, 38, 39, and 40 are provided for fastening and fixing the fifth and the fifth. The third protrusion 37 and the fourth protrusion 38 are provided at a position rotated by approximately 90 degrees counterclockwise in FIG. 2 from the position where the first protrusion 35 and the second protrusion 36 are provided. Have been.
The fifth protrusion 39 and the sixth protrusion 40 are the first protrusions.
2 is provided at a position rotated approximately 90 degrees clockwise in FIG. 2 from the position where the protrusion 35 and the second protrusion 36 are provided. Therefore, the third protrusion 37 and the fourth
, The fifth protrusion 39 and the sixth protrusion 4
“0” is provided at a position opposed to the hole 33.

The middle portions 25, 25 between the winding start portion 23 and the winding end portion 24 of the conductive wire 22 are stretched on the other surface 31b side of the plate-shaped bobbin 31 as follows. The middle portion 25 of the conducting wire 22 is
7, the other surface 31b of the plate-shaped bobbin 31
Side so as to straddle the hole 33,
Is fixed to the projection 39. Next, after the intermediate portion 25 of the conductive wire 22 is hooked and fixed to the sixth protrusion 40, the hole 3 is formed on the other surface 31 b side of the plate-shaped bobbin 31.
3 and is fixed to the fourth protrusion 38. The middle portions 25, 25 of the conductive wire 22 are stretched at two places on the other surface 31b side of the plate-shaped bobbin 31 so as to cross each other so as to straddle the hole 33.

On the one surface 31a side of the plate-shaped bobbin 31, the winding start portion 23 and the winding end portion 24 of the conductive wire 22 wound on the protruding portion 32 are located at the same positions as the grooves 34, 34 as shown in FIG. Notches 41, 41 provided in
Through to the other surface 31b side of the plate-shaped bobbin 31. The notches 41, 41, the first protrusion 35, and the second protrusion 36 are provided at positions facing each other with the hole 33 interposed therebetween. The winding start portion 23 and the winding end portion 24 of the conductive wire 22 guided to the other surface 31 b of the plate-shaped bobbin 31 are housed in the grooves 34, 34, and cross each other so as to straddle the hole 33. It is stretched, and its tip is fixed to the first projection 35 and the second projection 36, respectively.

The circuit section 11 is disposed in the hole 33 as shown in FIGS. The circuit portion 11 is configured such that the conductive wire 22 is wound around the plate-shaped bobbin 31, and the winding start portion 23 and the winding end portion 24 of the conductive wire 22 straddle the hole 33 so that the plate-shaped bobbin 31 (the first protrusion 35 and the first 2 is fixed to the protrusions 36), the winding start portion 2
3 and a portion straddling the hole 33 of the winding end portion 24 such that each of the connection terminals 14 abuts on a portion straddling the hole 33 of the winding start portion 23 or the winding end portion 24.
The plate-shaped bobbin 31 is placed from one surface 31a side. Connection terminal 14 and winding start portion 23 or winding end portion 24
The portion straddling the hole 33 is electrically connected to each other by soldering or ultrasonic welding.

As shown in FIGS. 5 and 6, the electronic component 1 has the internal component 10 configured as described above sandwiched between the first adhesive layer 51 and the second adhesive layer 52, Outside the first adhesive layer 51, an insulating sheet 61 as a surface base material, for example, a sheet made of polyester resin,
A release sheet 71 is attached to the outside of the second adhesive layer, and has a structure integrated into a substantially sheet shape. First
The conductive wire 22 wound around the one surface 31 a of the plate-shaped bobbin 31 is adhered to the adhesive layer 51. On the second adhesive layer 52, the winding start portion 23 of the conductive wire 22 stretched on the other surface 31b of the plate-shaped bobbin 31, the circuit portion 11, and the other surface 31b side of the plate-shaped bobbin 31, and the winding end portion 2
4, and also the middle portions 25, 25 are adhered.

Here, in the present embodiment, the adhesive strength of the second adhesive layer 52 is set to be stronger than the adhesive strength of the first adhesive layer 51. In addition, as the insulating sheet 61,
For example, polyethylene, polypropylene, thermoplastic resin materials such as polyester and vinyl chloride resin, or paper or synthetic paper can be suitably used. Further, the material of the release sheet 71 is not particularly limited, but a release paper having a surface coated with a silicone resin, a fluororesin, or the like can be suitably used as a release agent.

The thickness of the plate-shaped bobbin 31 is
The gap A is formed between the circuit section 11 and the first adhesive layer 51 as shown in FIG. As described above, the thickness of the plate-shaped bobbin 31 is set to be larger than the thickness of the circuit portion 11, and the gap A is formed between the circuit portion 11 and the first adhesive layer 51. When an impact is applied from the insulating sheet 61 side due to, for example, a collision of an object, the gap A functions as a buffer and reduces the impact acting on the circuit unit 11. For this reason, breakage of the circuit section 11 can be suppressed.

In the present embodiment, an adhesive, for example, an acrylic adhesive is applied to one surface of the insulating sheet 61 to form a first adhesive layer 51, and internal components are formed on the first adhesive layer 51. Then, an adhesive, for example, an acrylic adhesive similar to the first adhesive layer 51 is applied on the first adhesive layer 51 and the internal component 10 to form the second adhesive layer 52. Has formed. In addition, the formed second adhesive layer 5
A release sheet 71 is adhered on the sheet 2 and pressed to be integrated into a sheet. In addition, the first adhesive layer 51 or the second
As the pressure-sensitive adhesive forming the pressure-sensitive adhesive layer 52, for example, an acrylic, rubber, polyester, silicone-based pressure-sensitive adhesive can be used, and the first pressure-sensitive adhesive layer 51 and the second pressure-sensitive adhesive layer 52 can be used.
The kind of the pressure-sensitive adhesive to be used may be the same or different.

FIG. 7 shows the state of the electronic tag 1 when the electronic tag 1 is to be peeled off after the electronic tag 1 is attached to the object 2.
A description will be given based on (a) to (c) and FIGS. 8 (a) to (c).

FIG. 7A shows the remaining portion obtained by peeling the release sheet 71 from the electronic tag 1 constructed as described above.
As shown in (2), it is attached to the surface of the mounted object 2 via the second adhesive layer 52. Thereafter, in order to remove the attached electronic tag 1, the insulating sheet 61 was peeled off as shown in FIG. 7B, and as shown in FIG. The insulating sheet 61 is peeled off with a part of the wound conductive wire 22 adhered to the first adhesive layer 51.

Since the adhesive strength of the second adhesive layer 52 is set to be stronger than the adhesive strength of the first adhesive layer 51, the state in which the plate-shaped bobbin 31 is adhered to the second adhesive layer 52 is maintained. Most of the rest of the conductive wire 22 wound around the plate-shaped bobbin 31 remains on the second adhesive layer 52 (the object 2). Therefore, the conductive wire 22 adhered to the first adhesive layer 51
Any force between the wire and the conductive wire 22 remaining on the plate-shaped bobbin 31 receives a force that is pulled upward via the insulating sheet 61 (the first adhesive layer 51), and the insulating sheet 61 is being peeled off. As a result, the conductive wire 22 is disconnected, and the electronic tag 1 (the internal component 10) is broken.

A part of the conductive wire 22 wound on the plate-shaped bobbin 31 does not adhere to the first adhesive layer 51 and the insulating sheet 61
Is peeled off, as shown in FIG.
The internal component 10 remains on the side of the second adhesive layer 52 (the object 2). When the plate-shaped bobbin 31 is to be peeled off from the second adhesive layer 52 in order to remove the internal component 10 in a state where the internal component 10 remains on the second adhesive layer 52 (the object 2). The other surface 31 of the plate-shaped bobbin 31
Winding start portion 23 of conductive wire 22 stretched on b side
Similarly, the winding end portion 24 and the middle portion 25
And the circuit section 11 are adhered to the second adhesive layer 52, so that the plate-shaped bobbin 31 is, as shown in FIG.
The winding start portion 23, the winding end portion 24, the middle portion 25 of the conductive wire 22, or the circuit portion 11 is formed of the second adhesive layer 52.
It is peeled off while being adhered to. In FIG. 8B,
The state where the middle portion 25 of the conductive wire 22 is adhered to the second adhesive layer 52 is shown.

When the plate bobbin 31 is to be further removed, as shown in FIG. 8C, the winding start portion 23, the winding end portion 24, or the intermediate portion 25 of the conductive wire 22 is formed.
Will be disconnected. In FIG. 8C, the conductor 2
The state where the middle part 25 of 2 is disconnected is shown. When the plate-shaped bobbin 31 is peeled off in a state where the circuit portion 11 is adhered to the second adhesive layer 52, the connection terminal 14 of the circuit portion 11 and the winding start portion 23 or the winding end portion 24 of the conductive wire 22 are in contact with each other. The gap will be cut off. Therefore, as described above, the second component can be
In the case of remaining on the side of the adhesive layer 52 (the mounting object 2),
Even if the user tries to remove the internal component 10, the electronic tag 1
(Internal part 10) will be destroyed.

As described above, according to the electronic tag 1 of the present embodiment, the internal component 10 including the circuit section 11, the antenna section 21, and the plate-shaped bobbin 31 includes the first adhesive layer 51 and the first adhesive layer 51. 2 between the first adhesive layer 52 and the second adhesive layer 52.
Conducting wire 22 wound on one surface 31a side of plate-shaped bobbin 31
The second adhesive layer 52 has, on the other surface 31b of the plate-shaped bobbin 31, the circuit portion 11, the winding start portion 23 of the conductive wire 22 stretched on the other surface 31b side of the plate-shaped bobbin 31, Similarly, the winding end portion 24 and the middle portion 25 are adhered, and the outside of the first adhesive layer 51 is covered with the insulating sheet 61, so that the electronic tag 1 attached to the mounted object 2 is removed. When the peeling is attempted, a part of the conductive wire 22 wound around the plate-shaped bobbin 31 is broken, and the internal component 10 is broken. As a result, since a part of the conductive wire 22 is broken on one surface 31a side of the plate-shaped bobbin 31, a signal is transmitted from the electronic tag 1 side even if the peeled-off electronic tag 1 is reattached and used. This makes it impossible to use the electronic tag 1 again.

A part of the conductive wire 22 wound on the plate-shaped bobbin 31 does not adhere to the first adhesive layer 51 and the insulating sheet 61
Is peeled off, the winding start portion 23 of the conductive wire 22,
The winding end portion 24 or the middle portion 25 is disconnected,
Alternatively, the connection between the connection terminal 14 of the circuit portion 11 and the winding start portion 23 or the winding end portion 24 of the conductive wire 22 is cut, and the internal component 10 is broken. As a result,
Since a part of the conductive wire 22 is broken on the other surface 31b side of the plate-shaped bobbin 31, even if the separated electronic tag 1 is reattached and used, it is difficult to transmit a signal from the electronic tag 1 side. It becomes possible, and the electronic tag 1 cannot be used again.

Further, since the conducting wire 22 constituting the antenna portion 21 is wound around the plate-shaped bobbin 31, the handling of the antenna portion 21 becomes easy, and the conducting wire 2 at the time of manufacturing is formed.
2 can be prevented.

A hole 33 passing through the plate-shaped bobbin 31 is provided inside the portion of the plate-shaped bobbin 31 around which the conductive wire 22 is wound.
Is formed, and the winding start portion 23 and the winding end portion 24 of the conductive wire 22 are formed on the other surface 31b of the plate-shaped bobbin 31.
The circuit portion 11 is placed on one side 31a of the plate-shaped bobbin 31 with respect to the conductive wire portion stretched at the position of the hole 33. Is electrically connected in the closed state,
The position of No. 2 is positioned by the plate-shaped bobbin 31, and the process of electrically connecting the circuit portion 11 to the conductive wire 22 can be automated, so that the productivity of the electronic tag 1 can be improved.

The winding start portion 23, the winding end portion 24, and the middle portion 25 of the conducting wire 22 stretched on the other surface 31b side of the plate-shaped bobbin 31 are adhered to the second adhesive layer 52. Therefore, the number of conductive wires stretched to the other surface 31 b side of the plate-shaped bobbin 31 is plural, and the probability that the conductive wires 22 are disconnected when the plate-shaped bobbin 31 is peeled off from the second adhesive layer 52 is increased. Accordingly, the number of locations where the wire is easily broken in the portion of the wire stretched over the other surface 31b of the plate-shaped bobbin 31 increases, so that the wire 22 can be reliably broken.

The conductor 22 has a simple configuration in which the winding start portion 23, the winding end portion 24, and the middle portion 25 of the conductor 22 are stretched over the other surface 31b of the plate-shaped bobbin 31. Can be positively and reliably disconnected on the other surface 31b side of the plate-shaped bobbin 31.

Further, the adhesive strength of the second adhesive layer 52 is
Is set to be stronger than the adhesive force of the adhesive layer 51, the plate-like bobbin 31 is attached to the plate-shaped bobbin 31 in a case where the insulating sheet 61 is to be peeled off in order to remove the electronic tag 1 attached to the mounted object 2. The insulating sheet 61 is peeled off with a part of the wound conductive wire 22 adhered to the first adhesive layer 51, and the plate bobbin 31 is maintained in a state adhered to the second adhesive layer 52. As a result, the conducting wire 22 wound around the plate-shaped bobbin 31 can be more reliably disconnected.

In the present embodiment, the adhesive force of the second adhesive layer 52 is set to be stronger than the adhesive force of the first adhesive layer 51. However, the present invention is not limited to this. The adhesive force of the first adhesive layer 51 may be set to be stronger than the adhesive force of the second adhesive layer 52, or the adhesive force may be set to be equal.

When the adhesive force of the first adhesive layer 51 is set to be stronger than the adhesive force of the second adhesive layer 52, the plate-shaped bobbin 31 adheres to the first adhesive layer 51, and the insulating sheet 61
It will be peeled off with it. However, the circuit part 1
1. The winding start portion 23, the winding end portion 24, and the middle portion 25 of the conductive wire 22 stretched on the other surface 31b side of the plate-shaped bobbin 31 are adhered to the second adhesive layer 52. Therefore, the plate-shaped bobbin 31 is
Winding start part 23, winding end part 24, middle part 2
5, or the circuit portion 11 is peeled off while being adhered to the second adhesive layer 52, and the winding start portion 23, the winding end portion 24, or the middle portion 25 of the conductive wire 22 is disconnected, or Connection terminal 14 of part 11 and conductor 2
2 and between the winding start portion 23 and the winding end portion 24. Therefore, the first adhesive layer 51
When the adhesive force of the second adhesive layer 52 is set to be stronger than the adhesive force of the second adhesive layer 52, the internal component 10 can be actively broken on the other surface 31b side of the plate-shaped bobbin 31.

In this embodiment, the first adhesive layer 51 is provided so that the internal components are sandwiched between the first adhesive layer 51 and the second adhesive layer 52. Without providing the adhesive layer 51, the insulating sheet 61 is attached to the second adhesive layer 52 so as to cover the internal component 10 in a state where the internal component 10 is attached to the second adhesive layer 52. May be configured. According to the present invention, even in the case of such a configuration, the other surface 31b of the plate-shaped bobbin 31 is provided.
On the side, the conductor 22 can be broken.

In this embodiment, the IC chip 12 is mounted on the circuit board 13,
Without providing the circuit board 13, a connection portion for electrically connecting the conductive wire 22 may be formed on the IC chip 12 itself, and the IC chip 12 may be mounted on the conductive wire 22.

In the present embodiment, the winding start portion 23, the winding end portion 24, and the middle portions 25, 25 of the conductive wire 22 are stretched on the other surface 31b side of the plate-shaped bobbin 31. Is configured as
The present invention is not limited to this. For example, only the winding start portion 23 of the conductive wire 22 may be configured to extend over the other surface 31b of the plate-shaped bobbin 31. The bobbin 31 may be configured to extend over the other surface 31b side. Further, only the middle portions 25, 25 of the conductive wire 22 are connected to the other surface 3 of the plate-shaped bobbin 31.
You may comprise so that it may extend to 1b side. Also, the middle portions 25, 25 of the conductive wire 22 stretched on the other surface 31b side of the plate-shaped bobbin 31 are connected to the third protrusion 37 and the fifth
Although two portions are stretched between the projection 39 and the sixth projection 40 and the fourth projection 38, the invention is not limited to this, and three or more locations may be stretched. Or may be configured to be stretched at one place.

[0044]

As described above in detail, according to the present invention, when the electronic tag is to be peeled off from the mounted object so that the electronic tag once attached to the mounted object is not reused. Thus, a structure in which the electronic tag is reliably destroyed can be realized.

[Brief description of the drawings]

FIG. 1 is included in an electronic tag according to an embodiment of the present invention.
FIG. 3 is a plan view showing a configuration of an internal component.

FIG. 2 includes an electronic tag according to an embodiment of the present invention.
It is a rear view showing the composition of an internal part.

FIG. 3 is included in the electronic tag according to the embodiment of the present invention;
It is a perspective view showing composition of an internal part.

FIG. 4 is included in the electronic tag according to the embodiment of the present invention.
It is a perspective view which shows the structure of a plate-shaped bobbin.

FIG. 5 is a plan view showing a configuration of the electronic tag according to the embodiment of the present invention.

FIG. 6 is a cross-sectional view illustrating a configuration of an electronic tag according to the embodiment of the present invention.

FIGS. 7A and 7B are cross-sectional views for explaining a state in which the electronic tag according to the embodiment of the present invention has been peeled off, where FIG. 7A shows a state in which the electronic tag is attached to an object to be mounted, and FIGS. c) shows a state where the insulating sheet and the first adhesive layer are peeled off.

FIG. 8 is a cross-sectional view for explaining a state in which the electronic tag according to the embodiment of the present invention has been peeled off, (a) showing a state in which the insulating sheet and the first adhesive layer have been peeled off, and (b). (C) shows a state in which the internal component is peeled from the mounted object.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Electronic tag, 2 ... Object to be mounted, 10 ... Internal parts, 11 ...
Circuit part, 12 ... chip, 13 ... circuit board, 14 ... connection terminal, 21 ... antenna part, 22 ... conductor, 23 ... conductor winding start part, 24 ... conductor winding end part, 25 ... conductor winding start part Midway between the end of winding, 31
... plate-shaped bobbin, 31a ... one surface, 31b ... the other surface,
32: Projection, 33: Hole, 34: Groove, 35: First projection, 36: Second projection, 37: Third projection, 3
Reference numeral 8: fourth protrusion, 39: fifth protrusion, 40: sixth protrusion, 41: notch, 51: first adhesive layer, 52
... second adhesive layer, 61 ... insulating sheet, 71 ... release sheet.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G06K 19/00 LF Term (Reference) 5B035 AA13 BB09 BC00 CA08 5J021 AA01 AB04 DB04 EA04 FA13 FA30 FA31 HA05 HA06 5J046 AA00 AB11 PA01 QA04 QA10

Claims (5)

[Claims] 1. A circuit section including an element for storing information, an antenna section for transmitting / receiving signals electrically connected to the circuit section, and a coil on one side of the antenna section for transmitting and receiving signals. A plate-shaped bobbin wound in a shape, and a part of the conductive wire is stretched on the other surface side of the plate-shaped bobbin, and the internal component is the plate-shaped bobbin. An electronic tag, wherein the other side of the bobbin is attached to an adhesive layer. 2. The part of the conductor is a winding start part and a winding end part of the conductor, and inside the part of the plate bobbin around which the conductor is wound,
A hole passing through the plate-shaped bobbin is formed, and a winding start portion and a winding end portion of the conductive wire are stretched across the hole on the other surface side of the plate-shaped bobbin. The circuit portion is electrically connected to a conductive wire portion stretched at the position of the hole while being placed from one surface side of the plate-shaped bobbin. The electronic tag according to claim 1. 3. A part of the conductive wire, which extends between a winding start portion and a winding ending portion of the conductive wire on the other surface side of the plate-shaped bobbin. The electronic tag according to claim 1 or 2, wherein 4. An adhesive layer to which said conductive wire wound on said one surface side of said plate-shaped bobbin adheres is further attached to one surface side of said plate-shaped bobbin; 4. The electronic device according to claim 1, wherein an insulating sheet is attached to the outside of the adhesive layer to which the conductive wire wound on the one surface side adheres. 5. tag. 5. The adhesive force of the adhesive layer to which the internal component is adhered on the other surface side of the plate-shaped bobbin is such that the conductive wire wound on the one surface side of the plate-shaped bobbin is adhered. The electronic tag according to claim 4, wherein the electronic tag is set stronger than the adhesive force of the adhesive layer.