JP2010262540A - Rfid tag - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an RFID tag deformed into a state to thin a thickness when carrying and storing an object to be attached, and restored to a state of securing a sufficient space with respect to a metal face when transceived. <P>SOLUTION: The FID tag includes an inlet holding body 3 provided with a nonmetallic carrying plate part 5 for carrying an RFID inlet 2, and a pair of restoration springs 6 for holding the carrying plate part 5 separatedly with a prescribed space from an outer face 9 of an object 7 to be attached, and for generating an elastic force when compression-deformed. The carrying plate part 5 is thereby brought into an evacuated state getting near to the outer face 9 of the object 7 to be attached, when the restoration springs 6 are compression-deformed by an external force from a surface side of the carrying plate part 5, and the carrying plate part 5 is restored to a stationary state separated with the prescribed space from the outer face 9 of the object 7 to be attached, by the elastic force generated in the compression-deformed restoration springs 6, when the external force is removed. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an RFID tag used by being attached to a metal attachment.

  An RFID tag such as a non-contact type IC tag used in an RFID (Radio Frequency Identification) system includes an IC chip and an antenna, and uses an electromagnetic wave between an input / output device (reader / writer) and is non-contact type. It has a function that can send and receive signals such as commands and data. When this RFID tag enters an effective electromagnetic wave zone radiated by the antenna on the input / output device side, the RFID tag antenna generates an induced electromotive force, which becomes an operating state by the electric power, and commands, data, etc. from the input / output device. In response to the command signal, the received data is stored in a memory capable of reading and writing data included in the IC chip, or the data stored in the memory is transmitted to the input / output device. In recent years, it has been introduced in a wide range of fields such as transportation / leisure field, logistics field, security field, factory production field, environmental field, etc.

  When such an RFID tag is directly attached to a metal attachment, it is known that the transmission / reception function is extremely lowered or transmission / reception is disabled. Therefore, conventionally, a non-metallic spacer made of synthetic resin or rubber is disposed on the back surface of the RFID tag, and the RFID tag is attached to a metal attachment object via the spacer, thereby the RFID tag antenna and the metal. A reduction in transmission / reception function is suppressed by separating the surface (see, for example, Patent Document 1).

Japanese Patent Laying-Open No. 2009-9205 ("0004", Fig. 5)

  By the way, when using a spacer as described above, it is necessary to increase the thickness of the spacer and secure a sufficient space between the antenna of the RFID tag and the metal surface in order to suppress the deterioration of the transmission / reception function. If the thickness of the spacer is increased, the size of the entire RFID tag including the spacer increases, and this protrudes from the outer surface of the attached object, which causes a problem that the attached object becomes bulky during transportation and storage. .

  The present invention has been made to solve such a problem, and is deformed so that the thickness is reduced during transportation and storage of the attached object, and a sufficient space is ensured between the metal surface during transmission and reception. An object of the present invention is to provide an RFID tag that can be restored to a state.

  The present invention includes an IC chip having a memory for storing data in a rewritable manner and an antenna connected to the IC chip, and an RFID having a function of transmitting and receiving the data in a contactless manner with a predetermined input / output device. An inlet, a non-metallic support plate portion that supports the RFID inlet, an external force from the front side of the support plate portion that holds the support plate portion at a predetermined distance from the outer surface of the metal attachment object The support plate portion is compressed and deformed in a retracted state close to the outer surface of the attachment object, and when the external force is removed, the support plate portion is separated from the outer surface of the attachment object at a predetermined interval by the elastic force. An RFID tag comprising an inlet holder having a restoring spring to be restored.

  Here, the RFID inlet is configured by supporting an IC chip and an antenna on a synthetic resin sheet, or by supporting an IC chip and an antenna on a synthetic resin sheet and covering them with a synthetic resin outer package. Can be configured.

  A configuration is proposed in which the RFID tag includes an elastically deformable protective cover body that covers the side portion of the inlet holder.

  In addition, a configuration is proposed in which the inlet holder includes a mounting plate portion of a restoring spring that is attached to the outer surface of a metal attachment object.

  Furthermore, the structure provided with the stopper which adjoins a mounting plate part and hold | maintains in a retracted state is proposed.

  As described above, the present invention includes an IC chip having a memory for storing data in a rewritable manner and an antenna connected to the IC chip, and transmits / receives the data to / from a predetermined input / output device in a contactless manner. An RFID inlet having a function, a non-metallic carrier plate that carries the RFID inlet, the carrier plate being held at a predetermined distance from the outer surface of the metal attachment, and the carrier plate Compressed and deformed by an external force from the surface side to bring the carrying plate portion into a retracted state close to the outer surface of the attachment, and when the external force is removed, the carrying plate portion is separated from the outer surface of the attachment by a resilient force. Since the RFID tag includes an inlet holder having a restoring spring that returns to a separated steady state, the RFID tag is attached by attaching one end of the restoring spring to the outer surface of a metal attachment object. The non-metallic carrier plate carrying the Nretto can be held is separated at predetermined intervals from the outer surface of the attachment object. In such a steady state that the holding plate portion is held at a predetermined interval from the outer surface of the metal attachment object, a predetermined interval is secured between the RFID inlet and the metal surface, so Therefore, data transmission / reception by the RFID inlet can be performed without any trouble. On the other hand, during transportation or storage of the attachment, the outer surface of the attachment to which the RFID tag is attached is connected to the outer surface of another attachment, the surface of the truck bed or the wall of the building via the RFID tag. When pressed against, the restoring spring is compressed and deformed by an external force applied from the surface side of the support plate portion, and the support plate portion is in a retracted state close to the outer surface of the attachment object. As a result, the thickness of the RFID tag is reduced and the protrusion width from the outer surface of the attached object is reduced, so that the bulkiness of the attached object due to the thickness of the RFID tag can be eliminated. Further, when the external force is removed, the carrying plate portion can be automatically returned to a steady state in which it is separated from the outer surface of the attachment by a predetermined interval by the elastic force generated in the compression-deformed restoring spring.

  In the RFID tag, in the configuration including an elastically deformable non-metallic protective cover body that covers the side of the inlet holder, the state of the inlet holder that changes between a retracted state and a steady state The protective cover body can follow the change through its elastic deformation action, and the protective cover body can prevent the impact applied from the side to the inlet holder and the intrusion of foreign matter into the inlet holder. In addition, the RFID inlet carried on the carrying plate portion can be protected.

  Further, in the configuration in which the inlet holding body includes a mounting plate portion of a restoring spring attached to the outer surface of the metal attachment object, the restoring spring of the inlet holding body is attached to the attachment object by the attachment plate portion. Can be easily installed on the outer surface.

  Furthermore, in the configuration having a stopper that holds the carrying plate portion close to the mounting plate portion and keeps it in the retracted state, it is necessary to transmit and receive data using the RFID inlet even when the attachment object is not transported or stored. When there is not, since the RFID tag does not protrude greatly from the outer surface of the attached object by holding the holding plate portion in the retracted state by the stopper, the RFID tag protruding from the outer surface of the attached object in the steady state is It is possible to prevent the RFID tag from being dropped or damaged or broken due to the collision.

1 is an external perspective view of an RFID tag 1A according to a first embodiment. The RFID tag 1A attached to the outer surface 9 of the attachment 7 is shown, (A) is a steady state, and (B) is a longitudinal sectional view in a retracted state. It is operation | movement explanatory drawing at the time of use of RFID tag 1A. It is an external appearance perspective view of RFID tag 1A concerning the modification of a 1st Example. FIG. 7 is an external perspective view showing an RFID tag 1B according to a second embodiment, with the inlet holder 3 and the protective cover body 10 separated. (A) is a longitudinal sectional view of the RFID tag 1B in the steady state, and (B) is a longitudinal sectional view in a retracted state. An RFID tag 1C according to a third embodiment is shown, in which (A) is an external perspective view, and (B) is a longitudinal sectional view of a state where the RFID tag 1C is attached to an outer surface 9 of an attachment 7. 4A and 4B show an RFID tag 1D according to a fourth embodiment, in which (A) is an external perspective view, and (B) is a longitudinal sectional view in a retracted state.

Below, the 1st Example of this invention is described based on FIGS. 1-3.
The RFID tag 1 </ b> A includes an RFID inlet 2 and an inlet holder 3 that holds the RFID inlet 2.

  The RFID inlet 2 includes an IC chip and an antenna electrically connected to the IC chip, and the IC chip and the antenna are disposed on a synthetic resin insulating sheet. The RFID inlet 2 is a non-contact type battery-less type that can transmit and receive signals such as commands and data without contact with an input / output device (reader / writer) (not shown). The RFID inlet 2 may be one in which an IC chip and an antenna are disposed on an insulating sheet and this is covered with a synthetic resin outer package. The RFID inlet 2 may operate in any band such as an HF band (for example, 13.56 MHz) and a UHF band (for example, 953 MHz or 2.45 GHz).

  The inlet holder 3 is made of a non-metallic carrier plate 5 that carries the RFID inlet 2 and the carrier plate 5 separated from the outer surface 9 of the metal attachment 7 (see FIG. 2) at a predetermined interval. And a restoring spring 6 that generates a resilient force when compressed and deformed.

  The supporting plate portion 5 is formed in a flat plate rectangular shape using a synthetic resin or synthetic rubber, and the RFID inlet 2 is fixed and supported on the back surface of the supporting plate portion 5 with an adhesive or an adhesive tape. On the other hand, the restoring spring 6 is made of a coil spring made of metal or synthetic resin, and the four restoring springs 6 are fixed to the four corner positions on the back surface of the support plate portion 5 formed in a flat plate rectangular shape with an adhesive. . One end of each restoring spring 6 is attached to the outer surface 9 of the metal attachment 7 by an adhesive tape 8 (see FIG. 2). In addition, the number and arrangement | positioning position of the restoring spring 6 are not limited to the said structure, if the urging | biasing effect | action which leaves | separates the support plate part 5 equally from the outer surface 9 of the to-be-attached thing 7 is obtained. . Further, a leaf spring can be used instead of the coil spring. Further, when the restoring spring 6 is formed of a ferromagnetic material such as iron, one end thereof is magnetized, and one end of the restoring spring 6 is attached to the outer surface 9 of the metal attachment 7 by its adsorption action. You may make it attach.

  In the steady state where the inlet holder 3 is not subjected to external force from the surface side of the support plate portion 5, the support plate portion 5 is attached to the attachment 7 by the restoring spring 6 as shown in FIG. The outer surface 9 is held at a predetermined interval. Then, when an external force is received from the surface side of the support plate portion 5, the restoring spring 6 is compressed and deformed as shown in FIG. 2B, and the support plate portion 5 is in the retracted state close to the outer surface 9 of the attachment 7. It becomes. When the external force from the surface side of the support plate portion 5 is removed, the support plate portion 5 is attached to the object to be attached as shown in FIG. 7 returns to a steady state separated from the outer surface 9 at a predetermined interval. In addition, it is preferable to set the space | interval which the support plate part 5 spaces apart from the outer surface 9 of the to-be-attached object 7 in a steady state to about 1 cm.

  FIG. 3A shows a state in which the RFID tag 1A is attached to the outer surface 9 of the side wall of the metal container as the attachment 7. In this state, a steady state (see FIG. 2 (A)) in which the non-metallic carrier plate portion 5 carrying the RFID inlet 2 is held at a predetermined interval from the outer surface 9 of the attachment 7 is held. Since the deterioration of the transmission / reception function is suppressed, data transmission / reception by the RFID inlet 2 can be performed without any trouble.

  On the other hand, during transportation and storage of the attachment 7, as shown in FIG. 3B, the outer surface 9 of the attachment 7 to which the RFID tag 1A is attached is connected to another attachment via the RFID tag 1A. When pressed against the outer surface 9 of the attachment 7 or the wall 18 of the truck bed (or the wall surface of the building), the restoring spring 6 is compressed and deformed by the external force applied from the surface side of the carrier plate 5, and the carrier plate 5 is covered. It will be in the retracted state (refer to Drawing 2 (B)) which adjoins outer surface 9 of attachment 7. As a result, the thickness of the RFID tag 1A is reduced and the protruding width of the attached object 7 from the outer surface 9 is reduced, so that the bulkiness of the attached object 7 due to the thickness of the RFID tag 1A can be eliminated. Further, when the external force is removed, a steady state in which the carrying plate portion 5 is separated from the outer surface 9 of the attachment 7 by a predetermined interval due to the elastic force generated in the compression spring 6 (see FIG. 2A). ) Can be automatically restored.

  FIG. 4 shows a modified embodiment of the first embodiment. In this modified embodiment, the restoring springs 6 are disposed at two locations in the front-rear direction or the left-right direction of the support plate portion 5. Even in this way, the restoring spring 6 can provide an urging action for equally separating the carrier plate portion 5 from the outer surface 9 of the attachment 7.

  In the first embodiment and the modified embodiment, the support plate portion 5 of the inlet holder 3 is not limited to a rectangular shape, and may have other shapes such as a circle, a triangle, and a polygon.

  5 and 6 show a second embodiment, and the RFID tag 1B of the second embodiment includes a protective cover body 10 that covers the side portion of the inlet holder 3. FIG. The protective cover body 10 includes a truncated pyramid-shaped inclined plate portion 12 that extends obliquely downward from the four edges of the substrate portion 11 fixed to the upper surface of the support plate portion 5 and surrounds the side portion of the inlet holder 3. The four corner portions of the inclined plate portion 12 are divided by cuts 13. The inclined plate portion 12 is in contact with the outer surface 9 of the attachment 7 when the carrier plate portion 5 is in a steady state (see FIG. 6A) where it is held away from the outer surface 9 of the attachment 7. The length is in contact. As a material of the protective cover body 10, an elastically deformable synthetic resin or synthetic rubber is used. In the case where such a protective cover body 10 is provided, the RFID inlet 2 can be fixed to the surface side of the carrier plate portion 5.

  In such a configuration, when the inlet holding body 3 selectively changes between the retracted state (see FIG. 6B) and the steady state (see FIG. 6A), the protective cover body 10 exerts its elastic deformation action. Through the state change of the inlet holder 3. Thereby, since the side part of the inlet holding body 3 can be always covered with the protective cover body 10, the impact applied to the inlet holding body 3 from the side and the entry of foreign matter into the inlet holding body 3 are prevented. In addition, the RFID inlet 2 carried on the carrying plate portion 5 can be protected.

  The protective cover body 10 can also be provided by integrally forming the inclined plate portion 12 with the carrying plate portion 5.

  FIG. 7 shows a third embodiment, and an RFID tag 1C according to the third embodiment includes an attachment plate portion 4 on which an inlet holder 3 is attached to an outer surface 9 of a metal attachment 7. The mounting plate portion 4 is formed in the same shape as the supporting plate portion 5 using a synthetic resin, a synthetic rubber, or a metal plate, and the adhesive plate 14 (see FIG. 7B) provided on the back surface of the mounting plate portion 4 It can be attached to the outer surface 9 of the attachment 7. A release paper (not shown) is detachably attached to the adhesive layer 14, and the adhesive surface is protected by the release paper until it is attached to the outer surface 9 of the attachment 7. The pressure-sensitive adhesive layer 14 can be provided by applying a pressure-sensitive adhesive on the back surface of the mounting plate portion 4 or attaching a double-sided pressure-sensitive adhesive tape. Further, instead of the adhesive layer 14, a magnet may be disposed on the mounting plate portion 4 and attracted to the outer surface 9 of the metal attachment 7 by the magnetic force of the magnet. Furthermore, when the attachment plate portion 4 is formed of a ferromagnetic material such as an iron plate, the ferromagnetic material may be subjected to a magnetization process.

  In this configuration, the restoring spring 6 of the inlet holder 3 can be easily attached to the outer surface 9 of the attachment 7 by the attachment plate portion 4.

  FIG. 8 shows a fourth embodiment, and an RFID tag 1D according to the fourth embodiment includes stoppers 15 and 15 for holding the carrier plate portion 5 in a retracted state. The stoppers 15 and 15 are disposed in the vicinity of the edge of the upper surface of the support plate portion 5 in the front-rear direction or a pair of left and right. Each stopper 15 is formed of a substantially U-shaped hook, and one end of the hook is pivotally connected to the upper surface of the supporting plate portion 5 via an attachment member 16 fixed in the vicinity of the edge of the upper surface of the carrier plate portion 5. In addition, a pair of engaging grooves 17, 17 that can engage the other ends of the stoppers 15, 15 are formed on the edge of the mounting plate portion 4.

  In such a configuration, in order to use the stoppers 15, 15, the carrier plate part 5 is pressed from the surface side to bring the carrier plate part 5 into a retracted state in the vicinity of the mounting plate part 4. By engaging the other end of 15 with the engagement grooves 17 and 17 of the attachment plate portion 4, the carrier plate portion 5 can be held in the retracted state as shown in FIG. 8B. Thereby, when it is not necessary to transmit and receive data by the RFID inlet 2 even when the attachment 7 is not transported or stored, the RFID tag is obtained by holding the supporting plate portion 5 in the retracted state by the stoppers 15 and 15. Since 1D does not protrude greatly from the outer surface 9 of the attachment 7, the RFID tag 1D protruding from the outer surface 9 of the attachment 7 in a steady state collides with the surrounding one, and the RFID tag 1D is dropped or damaged. Failure can be prevented in advance.

  In the fourth embodiment described above, the stoppers 15 and 15 are disposed on the carrier plate portion 5 and the engaging grooves 17 and 17 are disposed on the mounting plate portion 4. It is also possible to reverse the positional relationship between 15, 15 and the engaging grooves 17, 17. In addition, the stoppers 15 and 15 are substantially U-shaped hooks, but instead of this, a hook provided with a hook-and-loop fastener at the ends of a pair of flat strips or a hook that can be engaged and disengaged at the ends of the pair of flat strips. It may be provided.

1A to 1D RFID tag 2 RFID inlet 3 Inlet holder 4 Mounting plate portion 5 Supporting plate portion 6 Restoring spring 7 Mounted object 9 Outer surface 10 Protective cover body 15 Stopper

Claims (4)

An RFID chip having an IC chip having a memory for storing data in a rewritable manner and an antenna connected to the IC chip, and having a function of transmitting and receiving the data in a contactless manner with a predetermined input / output device;
A non-metallic support plate portion that supports the RFID inlet, and the support plate portion are held at a predetermined distance from the outer surface of the metal attachment object, and are compressed and deformed by an external force from the surface side of the support plate portion. Then, the carrying plate part is brought into a retracted state close to the outer surface of the attached object, and when the external force is removed, the restoring is performed by returning the carrying plate part to the steady state spaced apart from the outer surface of the attached object by a resilient force. An RFID tag comprising an inlet holding body including a spring.   The RFID tag according to claim 1, further comprising a protective cover body that is elastically deformable and covers a side portion of the inlet holder.   The RFID tag according to claim 1 or 2, wherein the inlet holder includes a mounting plate portion of a restoring spring that is attached to an outer surface of a metal attachment object.   4. The RFID tag according to claim 3, further comprising a stopper that holds the supporting plate portion close to the mounting plate portion and holds the supporting plate portion in a retracted state.

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