JP2012243290A - Non-contact ic card communication adjustment plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a non-contact IC card communication adjustment plate with very few reading errors regardless of specifications of an external reader and a hybrid non-contact IC card.SOLUTION: A set of two magnetic sheets 20 laminated on one side or both sides of a shield sheet 10 of a non-contact IC card communication adjustment plate 1 are allowed to change their positions on the shield sheet 10.

Description

  The present invention relates to a state of communication between an external reading device and a non-contact IC card that is used by being superimposed on a non-contact IC card that can communicate with the external reading device in a non-contact manner using electromagnetic waves transmitted from the external reading device. The present invention relates to a non-contact IC card communication adjustment plate for adjusting the color.

Examples of conventional non-contact IC card communication adjustment plates include those shown in Patent Document 1 and Patent Document 2 proposed by the applicant of the present application.
That is, Patent Document 1 is obtained by laminating a highly permeable layer having an area slightly narrower than the electromagnetic shield layer on one or both sides of a substantially quadrilateral electromagnetic shield layer having an electromagnetic shield effect. The highly permeable layer has a shape substantially similar to the electromagnetic shield layer, and the outer periphery is formed so as to be surrounded by the electromagnetic shield layer.

  Further, Patent Document 2 has parallel strip-shaped magnetic sheets, and each magnetic sheet extends along the long side on both sides of the non-contact IC card in a use state in which the shield sheet is superimposed on the non-contact IC card. The shield sheet extends from one end edge to the other end edge.

JP 2006-350748 A Japanese Patent No. 4096065

  However, in the technique described in Patent Document 1, since the high magnetic permeability layer is formed on the entire inner side of the electromagnetic shield layer, the communication between the external reader and the non-contact IC card is good. However, since the area occupied by the high permeability layer is large, there is a problem that it is expensive. Further, in the manufacturing process, in order to leave the outer peripheral edge portion of the electromagnetic shield layer, it is necessary to prevent the peripheral edge of the high magnetic permeability layer from overlapping the outer peripheral edge of the electromagnetic shield layer. There was a problem that it was necessary.

  On the other hand, in Patent Document 2, since the parallel strip-shaped magnetic sheets are extended from one end edge of the shield sheet to the other end edge, a laminate of the strip-shaped magnetic sheets parallel to the long shield sheet is used. It is only necessary to cut with a predetermined length, the manufacturing process is easy, and the number of magnetic sheets is smaller than that of Patent Document 1, so that the cost is reduced accordingly.

  However, in recent years, IC cards have become more multifunctional, and there are increasing numbers of composite IC cards (composite non-contact IC cards) in which a contact IC chip and a non-contact IC chip are mounted on the same card. Yes. In such a composite IC card, the shape, arrangement, size, and the like of an antenna, which is a component as a non-contact IC card, may be limited compared to a non-contact IC card that is not a composite type. For this reason, in the type of Patent Document 2 having an intermediate region in which the shield sheet is exposed between the parallel strip-shaped magnetic sheets, many of the antennas of the non-contact IC card are in the intermediate region in use. Some parts may be located. In this case, the external reading device has a problem that it becomes difficult to read the information of the non-contact IC card.

  Moreover, the reading performance of an external reading device for reading information from a non-contact IC card is not uniform. For example, the performance of an external reading device that reads a boarding card composed of a non-contact IC card such as Suica (registered trademark of East Japan Railway Company) varies depending on the region such as Hokkaido, East Japan, West Japan, and the like. For this reason, when a conventional contactless IC card communication adjustment plate is used, the external reader may or may not be able to read information satisfactorily depending on the region even if the same contactless IC card is used. There is.

  In addition, highly reactive IC cards are issued without being disclosed. Due to improvements in IC chips and antennas built into non-contact IC cards or higher performance, changes in responsiveness with external readers have occurred. For example, even for the same Suica, depending on the issuance time, there is a case where even the information of the non-contact IC card superimposed on the back side of the contacted IC card communication adjustment plate not facing the external reading device is read. Since the response performance is low, there is a case in which information cannot be read on the external reading device side even when facing the external reading device.

  As described above, when the conventional non-contact IC card communication adjustment plate is used, the external reader is good due to the difference in the strength of the radio wave transmitted from the non-contact IC card even if the reading performance of the external reader is substantially the same. However, there is a problem that data can be read or not.

  Conversely, in any case, when a non-contact IC card is used on both sides of a conventional non-contact IC card communication adjustment plate, the non-contact IC card communication adjustment plate does not face the external reader. There is also a problem that the external reading device reads even the information of the non-contact IC card superimposed on the back side.

  In addition, even if the specifications of the external reader are changed, the non-contact IC card communication adjustment plate that has been used in the same area without any inconvenience until now can cause electromagnetic waves to reach the back side of the non-contact IC card communication adjustment plate that does not face the external reader. Has a problem that the external reader may read the information of the non-contact IC card superimposed on the back side of the non-contact IC card communication adjustment plate.

  The present invention has been made paying attention to the problem of the reading error of the conventional technology, and the specifications of the external reading device and the composite non-contact IC card when using the composite non-contact IC card. It is an object of the present invention to provide a non-contact IC card communication adjustment plate with extremely few occurrences of reading errors.

The gist of the present invention for achieving the object lies in the inventions of the following items. [1] The external reading used by being superposed on a non-contact IC card (30) capable of non-contact communication with the external reading device (40) using electromagnetic waves transmitted from the external reading device (40). In the non-contact IC card communication adjustment plate (1) for adjusting the communication state between the device (40) and the non-contact IC card (30),
A shield sheet (10) that blocks or attenuates the electromagnetic wave between the external reader (40) and the non-contact IC card (30), and is laminated on one or both sides of the shield sheet (10), A magnetic sheet (20) that transmits the electromagnetic waves between the reader (40) and the non-contact IC card (30),
The shield sheet (10) is a shield along the long sides (31a, 31a) on both sides of the non-contact IC card (30) when the shield sheet (10) is superposed on the non-contact IC card (30). It has a sheet long side part (10a, 10a) and a shield sheet short side part (10b, 10b) along both side short sides (31b, 31b) of the non-contact IC card (30),
The magnetic sheet (20) is a set of at least two large pieces of magnetic sheets (20, 20) whose position on the shield sheet (10) can be changed. (1).

[2] The external reading used by being superimposed on a non-contact IC card (30) that can communicate with the external reading device (40) in a non-contact manner using electromagnetic waves transmitted from the external reading device (40). In the non-contact IC card communication adjustment plate (1) for adjusting the communication state between the device (40) and the non-contact IC card (30),
A shield sheet (10) that blocks or attenuates the electromagnetic wave between the external reader (40) and the non-contact IC card (30), and is laminated on one or both sides of the shield sheet (10), A magnetic sheet (20) that transmits the electromagnetic waves between the reader (40) and the non-contact IC card (30),
The shield sheet (10) is a shield along the long sides (31a, 31a) on both sides of the non-contact IC card (30) when the shield sheet (10) is superposed on the non-contact IC card (30). It has a sheet long side part (10a, 10a) and a shield sheet short side part (10b, 10b) along both side short sides (31b, 31b) of the non-contact IC card (30),
The magnetic sheet (20) is a set of at least two large pieces of magnetic sheets (20, 20) whose positions on the shield sheet (10) can be changed, and the set of large pieces of magnetic sheets (20, 20). 20), one is in contact with only one of the short sides (10b, 10b) of the shield sheet (10), and the other is both short sides (10b, 10b) of the shield sheet (10). ) Is in contact with only the other side, and the length of the edge (23a) contacting the short side portion (10b, 10b) of the shield sheet (10) is the length of the short side portion (10b, 10b) of the shield sheet (10). A non-contact IC card communication adjustment plate (1) characterized by being shorter than 1/2 of the length.

[3] The shield sheet (10) has a guide groove (11) having an opening (11a) formed narrower than the inside (11b) on the surface,
The large piece of magnetic sheet (20) has a protrusion (25) movably fitted in the guide groove (11), and the position can be changed along the guide groove (11). The contactless IC card communication adjustment plate (1) according to item [1] or [2], which is characterized.

[4] The shield sheet (10) has a plurality of fixing holes in which openings are formed narrower than the inside on the surface,
The large piece of the magnetic sheet (20) has projections that can be fitted into and detached from the plurality of fixing holes, and the projections can be selectively fitted into and detached from the fixing holes to change the position. The contactless IC card communication adjustment plate (1) according to item [1] or [2], which is characterized.

[5] The item [1] or [2], wherein each of the large pieces of the magnetic sheet (20) has an adhesive layer that can be freely attached to and detached from the shield sheet (10) on one side. Non-contact IC card communication adjustment plate (1).

[6] The item [1] to [5], wherein the shield sheet (10) has a mark (12) indicating a moving position of the large piece of the magnetic sheet (20). Non-contact IC card communication adjustment plate (1).

The present invention operates as follows.
The shield sheet (10) of the non-contact IC card communication adjustment plate (1) is a conductive sheet that can block or attenuate electromagnetic waves to be transmitted. Moreover, a magnetic sheet (20) can permeate | transmit electromagnetic waves more densely than an air layer.

  Therefore, when the contactless IC card communication adjustment plate (1) is overlaid on the side facing the external reading device (40) of the front and back surfaces of the contactless IC card (30), contactless Regardless of whether the surface on the IC card communication adjustment plate (1) side is a surface provided with a magnetic sheet (20), the shield sheet (10) blocks electromagnetic waves from the external reader (40) and Communication between the contact IC card (30) and the external reader (40) can be prevented.

  Conversely, the non-contact IC card communication adjustment plate (1) is superimposed on the non-contact IC card (30) on the side opposite to the side facing the external reader (40), that is, the non-contact IC card. (30) faces the external reader (40), and the superimposed non-contact IC card communication adjustment plate (1) side is a surface not provided with the magnetic sheet (20). In some cases, electromagnetic waves from the external reader (40) are transmitted through the non-contact IC card (30) and then attenuated by the shield sheet (10). In this case as well, communication with the external reader (40) is performed. Can be prevented.

  On the other hand, the non-contact IC card (30) superimposed on the non-contact IC card communication adjustment plate (1) is in a state facing the external reading device (40), and the superimposed non-contact When the surface on the IC card communication adjustment plate (1) side is a surface provided with the magnetic sheet (20), the electromagnetic wave from the external reader (40) is not blocked by the non-contact IC card communication adjustment plate (1). Directly to the non-contact IC card (30). When the antenna coil (33) receives the electromagnetic wave, a current is supplied into the non-contact IC card (30) by magnetic induction, whereby the non-contact IC card (30) operates to transmit the electromagnetic wave. In this way, the non-contact IC card communication adjustment plate (1) can enable or prevent communication between the non-contact IC card (30) and the external reader (40).

  In the non-contact IC card communication adjustment plate (1), the magnetic sheet (20) is laminated on one side or both sides of the shield sheet (10). This magnetic sheet (20) is a set of at least two large pieces of magnetic sheets (20, 20) whose positions on the shield sheet (10) can be changed. Accordingly, when a problem occurs in reading information of the non-contact IC card (30) by the external reader (40) due to a difference in specifications of the external reader (40) or the non-contact IC card (30), the user However, it is possible to prevent a problem from occurring by appropriately changing the position of the large piece of the magnetic sheet (20, 20) on the shield sheet (10).

  The shield sheet (10) has a guide groove (11) on its surface, and a protrusion (25) that fits movably in the guide groove (11) of the shield sheet (10) on the large magnetic sheet (20). In the provided one, the large piece of the magnetic sheet (20) is placed at an appropriate position on the shield sheet (10), and the protrusion (25) is moved from the opening (11a) to the inside (11b) of the guide groove (11). Just plug it in.

  Also, instead of the guide groove (11), a plurality of fixing holes are provided on the surface of the shield sheet (10), and a large piece of the magnetic sheet (20) is provided with protrusions that can be fitted into and removed from the plurality of fixing holes. In this case, the protrusions may be fitted into the fixing holes appropriately selected for the protrusions. In this way, by changing the position of the large piece of magnetic sheet (20) on the shield sheet (10), it is possible to cope with the difference in specifications of the external reader (40) and the non-contact IC card (30). The reading error of the external reading device (40) can be prevented.

  As a means for changing the position of the large piece of magnetic sheet (20) on the shield sheet (10), an adhesive layer that can be freely attached to and detached from the shield sheet (10) is formed on one side of the large piece of magnetic sheet (20). You may do it. In this case, it is not necessary to provide a guide groove (11) or a fixing hole in the shield sheet (10), or to provide a protrusion (25) in the large piece of magnetic sheet (20). The manufacturing cost of the plate (1) can be kept low.

  Further, in the case where the mark (12) indicating the moving position of the large piece of magnetic sheet (20) is provided on the shield sheet (10) side, the large piece of magnetic sheet (20) can be quickly and accurately placed at an appropriate position. Can be moved and changed.

  According to the non-contact IC card communication adjustment plate of the present invention, the specifications of the external reader and the non-contact IC card are changed when used in an area where the specifications of the external reader and the non-contact IC card are different or within the same area. Even in this case, by changing the position of the large piece of magnetic sheet on the shield sheet, the external reader can read information from the non-contact IC card without causing a reading error.

  In addition, a non-contact IC card communication adjustment plate capable of changing the position of the large magnetic sheet on the shield sheet by forming an adhesive layer that can be freely attached to and detached from the shield sheet on one side of the large magnetic sheet. It can be provided at low cost.

  Also, by providing a mark indicating the position of the large piece of magnetic sheet on the shield sheet side, anyone can move and change the large piece of magnetic sheet quickly and accurately to an appropriate position.

It is a top view which shows the non-contact IC card communication adjustment board which concerns on embodiment of this invention. It is a top view which shows the magnetic sheet in the non-contact IC card communication adjustment board of FIG. It is the side view which looked at the non-contact IC card communication adjustment board of FIG. 1 from the long side. It is a schematic diagram which shows the fitting state part of the projection part of the magnetic sheet in FIG. 2, and the guide groove in a shield sheet. It is a figure explaining the effect | action of the non-contact IC card communication adjustment board which concerns on embodiment of this invention. It is a perspective view which shows a non-contact IC card. It is the schematic which shows the use condition of a non-contact IC card.

Hereinafter, various preferred embodiments of the present invention will be described with reference to the drawings.
1 to 5 show an embodiment of the present invention.
FIG. 1 is a plan view showing a non-contact IC card communication adjustment plate according to an embodiment of the present invention. FIG. 2 is a plan view showing a magnetic sheet in the non-contact IC card communication adjustment plate of FIG. FIG. 3 is a side view of the non-contact IC card communication adjustment plate of FIG. 1 viewed from the long side. FIG. 4 is a schematic diagram illustrating a fitting state portion between the protrusion of the magnetic sheet and the guide groove of the shield sheet in FIG. FIG. 5 is a diagram for explaining the operation of the non-contact IC card communication adjustment plate according to the embodiment of the present invention.
FIG. 6 is a perspective view showing a non-contact IC card, and FIG. 7 is a schematic view showing a use state of the non-contact IC card.

  6 and 7, the non-contact IC card 30 using the non-contact IC card communication adjusting plate 1 includes an IC chip 32 and an antenna coil 33 connected to the IC chip 32. Is embedded, and reads and writes data and programs to and from the external reader 40 wirelessly and non-contactively using electromagnetic waves. The external reading device 40 is a card reader / writer or the like.

  When the non-contact IC card 30 is irradiated with an induced electromagnetic wave from the external reader 40 side, the antenna coil 33 receives the induced electromagnetic wave on the non-contact IC card 30 side, and an induced electromotive force is generated in the antenna coil 33. The induced electromotive force becomes the driving power for the non-contact IC card 30 and the data stored in the IC chip 32 is read by the electromagnetic wave superimposed on the induced electromagnetic wave.

  The non-contact IC card communication adjustment plate 1 that is used while being superimposed on the non-contact IC card 30 is used in order to prevent communication between the external reader 40 and the non-contact IC card 30. 30 and the external reading device 40 can be used to exhibit the action of blocking or attenuating electromagnetic waves.

  As shown in FIGS. 2 and 3, the non-contact IC card communication adjustment plate 1 is obtained by laminating a magnetic sheet 20 that transmits electromagnetic waves on a shield sheet 10 that blocks or attenuates electromagnetic waves. The non-contact IC card communication adjustment plate 1 is used to adjust a non-contact communication state performed between the external reading device 40 and the non-contact IC card 30 as shown in FIG.

  The shield sheet 10 is formed in a substantially quadrangular planar shape, and its size is larger than the antenna coil 33 built in the non-contact IC card 30 when it is superimposed on the non-contact IC card 30. It is preferable. Thereby, when the non-contact IC card communication adjustment plate 1 is superposed on the non-contact IC card 30, the wraparound of the electromagnetic waves from the periphery of the non-contact IC card communication adjustment plate 1 is reduced, and the external reader 40 and the non-contact IC card are adjusted. The electromagnetic wave between the contact IC card 30 can be surely blocked or attenuated.

  The antenna coil 33 of the non-contact IC card 30 is used for both transmission and reception, but is not limited thereto, and may include a transmission antenna and a reception antenna separately. If separate antennas are provided for transmission and reception, communication between the non-contact IC card 30 and the external reader 40 can be prevented if either one of the antennas can be shielded by the shield sheet 10. be able to.

  The shield sheet 10 is formed using a material that can obtain an electromagnetic shielding effect by having conductivity. Examples of the metal include gold, silver, platinum, copper, aluminum, iron, and nickel. Moreover, as a substance other than a metal, for example, a conductive ceramic can be used. These metals are used in the form of plates.

  The shield sheet 10 may be provided by attaching a metal or the like formed in a mesh shape, a lattice shape, a foil shape, a plate shape or the like to a base (Base) made of a predetermined medium. As the base material, for example, sheet-like plastic, cloth, paper, or the like can be used.

  Further, the shield sheet 10 may be one in which a powdery metal or the like is applied to a base formed in a flat plate shape. Alternatively, a metal powder may be contained in powdered plastic and formed into a layer shape. Furthermore, you may make it comprise the shield sheet | seat 10 by sticking a metal etc. to a layered base | substrate, or sewing it.

As the plastic used for the substrate, for example, polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), or any other resin material can be used. When these resin materials are used as a base, the shield sheet 10 is formed into a plastic film in which conductive powder is mixed in the base or a plastic film in which a metal thin film is deposited on the surface, A plastic film with a metal foil affixed to its surface, a plastic film with a conductive resin applied to its surface, or a metal wire or metal mesh embedded inside It can be formed into a plastic film.
The shield sheet 10 formed as described above can shield an electromagnetic wave to be transmitted.

  The magnetic sheet 20 laminated on the shield sheet 10 serves to guide the non-contact IC card 30 that communicates with the external reader 40 in a non-contact manner to communicate with the external reader 40. The communication state of the non-contact IC card 30 is suitably adjusted by the combination.

  The shield sheet 10 that blocks or attenuates electromagnetic waves is substantially rectangular and has four corners rounded. The shield sheet 10 includes shield sheet long side portions 10a and 10a along the long side edges 31a and 31a on both sides of the non-contact IC card 30 in a use state in which the non-contact IC card communication adjustment plate 1 is superimposed on the non-contact IC card 30. The non-contact IC card 30 has shield sheet short sides 10b and 10b along the short sides 31b and 31b on both sides.

  As shown in FIG. 1, the non-contact IC card communication adjustment plate 1 of the present embodiment has two large pieces of magnetic sheets 20 and 20 as magnetic sheets laminated on the shield sheet 10. Although FIG. 3 shows that the magnetic sheets 20 and 20 are laminated on only one side of the shield sheet 10, they may be laminated on both sides. In the case where the magnetic sheets 20 and 20 are laminated on only one side, the function as the non-contact IC card communication adjusting plate 1 is exhibited only when the single side is used, but the magnetic sheets 20 and 20 are laminated on both sides. Then, each non-contact IC card can be used by superimposing one non-contact IC card on each side of the non-contact IC card communication adjustment plate 1.

  The magnetic sheet 20 is made of a material excellent in magnetic permeability μ. For example, in the frequency of the electromagnetic wave to be used, the relative permeability is preferably 100 or more, more preferably 1000 or more. Specifically, permalloy, ferrite, sendust, directional silicon steel, or the like can be used. Thereby, the magnetic sheet 20 can permeate | transmit electromagnetic waves more densely than an air layer.

  The magnetic sheets 20 and 20 have the same shape. The illustrated example is a quadrilateral, and a magnetic sheet long side 21 extending parallel to the extending direction of the long sides 10 a and 10 a of the shield sheet 10, and an inclination extending in a direction inclined with respect to the magnetic sheet long side 21. It consists of the side 22 and the magnetic sheet short sides 23 and 24 extending parallel to the direction in which the short sides 10b and 10b of the shield sheet 10 extend.

  The magnetic sheet short sides 23 and 24 have different lengths, and the shorter magnetic sheet short side 23 is arranged such that the side edge 23a overlaps one side edge of the short side portions 10b and 10b of the shield sheet 10. . The length of the edge 23 a of the magnetic sheet short side 23 is shorter than ½ of the length of the short side 10 b of the shield sheet 10. The edge 23a should generally be shorter.

  On the other hand, the shorter side 24 of the longer magnetic sheet does not reach the short side 10 b of the shield sheet 10. Therefore, the magnetic sheet 20 is in contact with only one short side portion 10 b of the shield sheet 10.

  As shown in FIGS. 1, 3, and 4, two guide grooves 11 and 11 are formed in parallel on the surface of the shield sheet 10 for each magnetic sheet 20. As shown in FIG. 4, the opening 11a of the guide grooves 11, 11 is formed narrower than the inside 11b. The guide grooves 11, 11 extend in the direction in which the short side portion 10b of the shield sheet 10 extends. The guide groove 11 has, for example, a width of 0.5 mm and a length of 1.5 mm.

  On the other hand, the magnetic sheet 20 is provided with a protrusion 25 that is movably fitted in the guide groove 11. The protrusion 25 is formed with a head 25 a having a cross section larger than the opening 11 a of the guide groove 11 but having a size capable of being accommodated in the inside 11 b of the guide groove 11.

  The non-contact IC card communication adjusting plate 1 functions by fitting a protrusion 25 provided on the magnetic sheet 20 into a guide groove 11 formed on the shield sheet 10. The position of the magnetic sheet 20 can be changed within a range in which the protrusion 25 can be moved in the guide groove 11.

  In FIG. 1, in the state shown by the solid line, the magnetic sheets 20 and 20 are arranged so that the inclined sides 22 and 22 of the two magnetic sheets 20 and 20 are in contact with each other to form one magnetic sheet as a whole. An example is shown. Moreover, what was shown with the broken line has shown the example which has arrange | positioned the magnetic sheets 20 and 20 so that the shield sheet 10 may be exposed between the inclined sides 22 and 22 of two magnetic sheets 20 and 20, respectively.

  What is indicated by a solid line so as to overlap the broken line is a mark 12 that indicates a fixed position of the magnetic sheet 20 so that the position can be quickly and accurately moved and changed when the position of the magnetic sheet 20 is changed. The marks 12 are provided with a plurality of marks 12 for each of the two magnetic sheets 20 and 20. In FIG. 1, one magnetic sheet is shown for each of the magnetic sheets 20, and illustration of other marks is omitted.

  The non-contact IC card communication adjustment plate 1 configured as described above may be approximately the same size as the non-contact IC card 30 or may have a certain margin.

Next, the operation of the non-contact IC card communication adjustment plate 1 according to the present embodiment will be described.
FIG. 5 shows a non-contact IC in a use state in which the magnetic sheet 20 is provided on both surfaces of the non-contact IC card communication adjustment plate 1 according to the present embodiment, and the non-contact IC cards 30a and 30b are superimposed on each surface. It is a figure explaining the effect | action of the card communication adjustment board. In the illustrated usage state, the non-contact IC cards 30a and 30b are superimposed on both surfaces of the magnetic sheet 20 laminated on the shield sheet 10 of the non-contact IC card communication adjustment plate 1, respectively.

  In FIG. 5, arrows indicate electromagnetic waves (signals) for reading information from the non-contact IC cards 30a and 30b. In addition, “◯” indicates that communication is normally performed, and “X” indicates that communication is not normally performed.

  In FIG. 5, the influence of the shield sheet 10 on the electromagnetic wave traveling from the left side of the shield sheet 10 toward the non-contact IC card 30a is reduced by the magnetic sheet 20 disposed on the back side of the non-contact IC card 30a. Thereby, the non-contact IC card 30a can receive the electromagnetic wave from the outside without any problem, and can transmit the electromagnetic wave from the non-contact IC card 30a. This is because the non-contact IC card 30a is also placed in the magnetic field because the magnetic field tends to concentrate in the magnetic sheet 20 having a high magnetic permeability. For this reason, the non-contact IC card 30a can receive an electromagnetic wave from the outside and can transmit the electromagnetic wave. Therefore, when the external reading device 40 transmits an electromagnetic wave in a direction from the left side of the shield sheet 10 toward the non-contact IC card 30a, communication can be performed between the non-contact IC card 30a and the external reading device 40.

  On the other hand, an electromagnetic wave directed to the non-contact IC card 30a from the left side of the same shield sheet 10 is shielded by the shield sheet 10 of the non-contact IC card communication adjustment plate 1, and therefore, the non-contact IC superimposed on the right side of the shield sheet 10. The card 30b is never reached. For this reason, the non-contact IC card 30b does not receive electromagnetic waves coming from the opposite side across the non-contact IC card communication adjustment plate 1, and is not desired between the external reader 40 and the non-contact IC card 30b. Communication can be prevented.

  The same can be said for the electromagnetic wave traveling from the right side of the shield sheet 10 toward the non-contact IC card 30b.

  Generally, electromagnetic waves do not exist inside the conductor (shield sheet 10), and there is a property that electromagnetic waves are not sufficiently present even at the boundary surface between air and the conductor due to boundary conditions. For this reason, for example, as shown in FIG. 5, even when an electromagnetic wave for reading the non-contact IC card 30b is transmitted from the right side, the electromagnetic wave is attenuated due to the shield sheet 10 disposed on the back surface of the non-contact IC card 30b. End up. Thereby, the non-contact IC card 30b cannot communicate with the external reading device 40 that has transmitted electromagnetic waves to the non-contact IC card 30b.

  Further, the electromagnetic wave traveling from the right side of the shield sheet 10 with respect to the non-contact IC card 30a is blocked by the shield sheet 10 from the electromagnetic wave traveling from the left side of the shield sheet 10 with respect to the non-contact IC card 30b. Since it is interrupted by the shield sheet 10 in the same manner as described above, the contactless IC card 30a is not reached. For this reason, electromagnetic waves are not received by the non-contact IC card 30a, and communication between the external reader 40 on the right side of the shield sheet 10 and the non-contact IC card 30a is hindered.

  According to the non-contact IC card communication adjustment plate 1 according to the present embodiment, the non-contact IC card communication adjustment plate 1 and the non-contact IC card communication adjustment plate 1 are overlapped with each other. The communication between the non-contact IC cards 30a and 30b and the external reader 40 is suitably adjusted depending on how the combined non-contact IC cards 30a and 30b are positioned with respect to the direction in which the electromagnetic waves emitted by the external reader 40 come. can do.

  In the non-contact IC card communication adjustment plate 1, the exposed portion of the shield sheet 10 extends between the magnetic sheet long sides 21 and 21 along the long side portions 10 a and 10 a of the shield sheet. Due to the exposed portion of the shield sheet 10, the external reader 40 faces the external reader 40 even when the non-contact IC card 30 is disposed on both the front and back sides of the non-contact IC card communication adjustment plate 1. The reading error of reading information on the non-contact IC card 30 arranged on the back side opposite to the front side of the non-contact IC card communication adjustment plate 1 to be read from the shield sheet long side portions 10a, 10a side is almost completely prevented. .

  In addition, only the edge 23a of the shorter magnetic sheet short side 23 of the two magnetic sheet short sides 23, 24 reaches the edge of the short shield sheet short sides 10b, 10b. The length of the side edge 23a is shorter than ½ of the length of the short side part 10b of the shield sheet 10, and the shield sheet 10 is exposed at the peripheral part other than the side edge 23a. For this reason, the reading error which reads the non-contact IC card 30 arrange | positioned in the back side of the non-contact IC card communication adjustment board 1 from the peripheral parts other than the edge 23a by the external reader 40 is prevented. Thereby, the possibility of a reading error from the shield sheet short side portions 10b and 10b is reduced.

  The non-contact IC card communication adjustment plate 1 according to the present embodiment can move the positions of the magnetic sheets 20 and 20 in the direction in which the short side portion 10b of the shield sheet 10 extends. The magnetic sheets 20 and 20 can be moved in the same direction, or can be moved in opposite directions. The magnetic sheet 20 may be moved along the guide groove 11 because the protrusion 25 is movably fitted in the guide groove 11 of the shield sheet 10.

  Therefore, as shown by the solid line in FIG. 1, the two magnetic sheets 20 and 20 are arranged so that the inclined sides 22 and 22 are in contact with each other, and the magnetic sheets 20 and 20 become a single magnetic sheet as a whole. It can also be made, and it can also arrange so that shield sheet 10 may be exposed between inclined sides 22 and 22.

  Since the positions of the magnetic sheets 20 and 20 can be changed as described above, that is, the position and shape of the area occupied by the magnetic sheets 20 and 20 on the shield sheet 10 can be changed, so that a composite non-contact IC card is used. When using the non-contact IC card communication adjustment plate 1, the occurrence of reading errors is extremely small regardless of the specifications of the external reader 40 or the composite non-contact IC card.

  For example, in the case of the non-contact IC card 30 having low response performance, the antenna of the non-contact IC card 30 is obtained by moving the two magnetic sheets 20 and 20 toward the long side portion 10a of the shield sheet 10. Since the magnetic sheet covers a larger portion of the electromagnetic wave, more electromagnetic waves are supplied to the antenna, and communication between the non-contact IC card 30 and the external reading device 40 can be improved.

  On the other hand, in the case of the non-contact IC card 30 having high responsiveness, the two magnetic sheets 10 and 10 are moved closer to the center of the shield sheet 10 to increase the ratio of the outer peripheral portion of the shield sheet 10, thereby increasing the external ratio. It can adjust so that the non-contact IC card 30 piled up on the surface on the opposite side of the surface of the non-contact IC card communication adjustment plate 1 facing the reading device 40 does not react excessively.

The embodiments of the present invention have been described above with reference to the drawings. However, the specific configuration is not limited to the above-described embodiments, and the present invention can be changed or added without departing from the scope of the present invention. Included in the invention. For example, in the present embodiment, the magnetic sheet 20 has a quadrilateral shape as illustrated, but is not limited to a quadrilateral shape.
The inclined side 22 is shown as a straight line, but may be a refracted line or a curved line.

  Further, the width, length, number and the like of the guide groove 11 are not limited to those illustrated and illustrated. Further, the direction in which the guide groove 11 extends, that is, the direction in which the magnetic sheet is moved is not limited to the direction in which the short side portion 10b of the shield sheet 10 extends, and any method can be used as long as the magnetic sheet 20 does not protrude from the shield sheet 10 due to the movement. Such a direction may be used, or a moving direction that draws a circle or a curve may be used.

  Instead of the guide groove 11, a plurality of fixing holes may be provided on the surface of the shield sheet 10, and the large piece of the magnetic sheet 20 may be provided with protrusions that can be fitted into and removed from the plurality of fixing holes. In this case, the protruding portion may be removed from the fixing hole and reinserted into the appropriately selected fixing hole. In this way, the position of the large piece of magnetic sheet 20 on the shield sheet 10 can be changed, and the occurrence of a reading error in the external reading device 40 can be prevented.

  Further, the guide sheet 11 and the fixing hole are not provided on the shield sheet 10, the protrusion is not provided on the large piece of magnetic sheet 20, and the adhesive can be freely peeled off from the shield sheet 10 on one side of the large piece of magnetic sheet 20. An agent layer may be provided.

  In addition, the protrusion 25 provided on the magnetic sheet 20 is not provided directly on the magnetic sheet 20. For example, the magnetic sheet 20 is attached to the upper surface of a base sheet having the same shape as the magnetic sheet 20, and the protrusion 25 is provided on the lower surface. May be provided. The material of the base sheet is the same as that of the shield sheet 10, for example.

  The idea of the non-contact IC card communication adjusting plate according to the present invention can be widely applied as long as it is used in such a manner that information of the non-contact IC card is read by an external reader.

DESCRIPTION OF SYMBOLS 1 ... Non-contact IC card communication adjustment board 10 ... Shield sheet 10a ... Shield sheet long side part 10b ... Shield sheet short side part 11 ... Guide groove 11a ... Opening part 11b ... Inside 12 ... Mark 20 ... Magnetic sheet 21 ... Magnetic sheet length Side 22 ... Inclined side 23 ... Magnetic sheet short side 23a ... Edge 24 ... Magnetic sheet short side 25 ... Projection part 25a ... Head 30 ... Non-contact IC card 31 ... Main body 31a ... Non-contact IC card long side 31b ... Non Short side of contact IC card 32... IC chip 33... Antenna coil 40.

The gist of the present invention for achieving the object lies in the inventions of the following items. [1] The external reading used by being superposed on a non-contact IC card (30) capable of non-contact communication with the external reading device (40) using electromagnetic waves transmitted from the external reading device (40). In the non-contact IC card communication adjustment plate (1) for adjusting the communication state between the device (40) and the non-contact IC card (30),
A shield sheet (10) that blocks or attenuates the electromagnetic wave between the external reader (40) and the non-contact IC card (30), and is laminated on one or both sides of the shield sheet (10), A magnetic sheet (20) that transmits the electromagnetic waves between the reader (40) and the non-contact IC card (30),
The shield sheet (10) is a shield along the long sides (31a, 31a) on both sides of the non-contact IC card (30) when the shield sheet (10) is superposed on the non-contact IC card (30). It has a sheet long side part (10a, 10a) and a shield sheet short side part (10b, 10b) along both side short sides (31b, 31b) of the non-contact IC card (30),
The magnetic sheet (20) is a set of at least two large pieces of magnetic sheets (20, 20) whose position on the shield sheet (10) can be changed within a range that does not protrude from the shield sheet (10). Oh is, and wherein the total area is smaller than the area of the shielding sheet (10) the non-contact IC card communication adjusting plate (1).

[2] The external reading used by being superimposed on a non-contact IC card (30) that can communicate with the external reading device (40) in a non-contact manner using electromagnetic waves transmitted from the external reading device (40). In the non-contact IC card communication adjustment plate (1) for adjusting the communication state between the device (40) and the non-contact IC card (30),
A shield sheet (10) that blocks or attenuates the electromagnetic wave between the external reader (40) and the non-contact IC card (30), and is laminated on one or both sides of the shield sheet (10), A magnetic sheet (20) that transmits the electromagnetic waves between the reader (40) and the non-contact IC card (30),
The shield sheet (10) is a shield along the long sides (31a, 31a) on both sides of the non-contact IC card (30) when the shield sheet (10) is superposed on the non-contact IC card (30). It has a sheet long side part (10a, 10a) and a shield sheet short side part (10b, 10b) along both side short sides (31b, 31b) of the non-contact IC card (30),
The magnetic sheet (20) is a set of at least two large pieces of magnetic sheets (20, 20) whose position on the shield sheet (10) can be changed within a range that does not protrude from the shield sheet (10). The pair of large pieces of magnetic sheets (20, 20) has a total area smaller than the area of the shield sheet (10), while one of the edges (23a) has the shield sheet (10). ) Is in contact with only one of the short sides (10b, 10b), and the other is part of the short side (10b, 10b) of the shield sheet (10). Non-contact IC card communication adjustment plate (1), characterized in that it is in contact with only.
[3] The edge (23a) of each of the one magnetic sheet (20) and the other magnetic sheet (20) in contact with the short sides (10b, 10b) of the shield sheet (10), The contactless IC card communication adjustment plate (1) according to item [2], wherein the length is shorter than ½ of the length of the short side portion (10b) of the shield sheet (10).

[ 4 ] The shield sheet (10) has a guide groove (11) having an opening (11a) narrower than the inside (11b) on the surface,
The large piece of magnetic sheet (20) has a protrusion (25) movably fitted in the guide groove (11), and the position can be changed along the guide groove (11). The contactless IC card communication adjustment plate (1) according to item [1] , [2] or [ 3 ], which is characterized.

[ 5 ] The shield sheet (10) has a plurality of fixing holes in which openings are formed narrower than the inside on the surface,
The large piece of the magnetic sheet (20) has projections that can be fitted into and detached from the plurality of fixing holes, and the projections can be selectively fitted into and detached from the fixing holes to change the position. The contactless IC card communication adjustment plate (1) according to item [1] , [2] or [ 3 ], which is characterized.

[ 6 ] The item [1] , [2] or [ 6 ], wherein each of the large pieces of the magnetic sheet (20) has a pressure-sensitive adhesive layer that can be attached to and detached from the shield sheet (10) on one side. 3 ] The contactless IC card communication adjustment plate (1).

[ 7 ] The item [1] to [ 6 ], wherein the shield sheet (10) has a mark (12) indicating a moving position of the large piece of the magnetic sheet (20). Non-contact IC card communication adjustment plate (1).

In the non-contact IC card communication adjustment plate (1), the magnetic sheet (20) is laminated on one side or both sides of the shield sheet (10). The magnetic sheet (20) is the sum of the magnetic sheet (20, 20) der Ri area of shielding sheet (10) at least a set of two sheets possible position change on a large piece is than the area of the shielding sheet (10) Ru der thing is also small. Accordingly, when a problem occurs in reading information of the non-contact IC card (30) by the external reader (40) due to a difference in specifications of the external reader (40) or the non-contact IC card (30), the user There can be so that no problem by changing the appropriate position within the range that does not extend the magnetic sheet (20, 20) of a large piece of the shielding sheet (10) from the shield sheet (10).

Claims (6)

The communication state between the external reading device and the non-contact IC card is used by being superimposed on a non-contact IC card that can communicate with the external reading device in a non-contact manner using electromagnetic waves transmitted from the external reading device. In the non-contact IC card communication adjustment plate for adjustment,
A shield sheet that blocks or attenuates the electromagnetic wave between the external reader and the non-contact IC card, and is laminated on one or both sides of the shield sheet, between the external reader and the non-contact IC card A magnetic sheet that transmits the electromagnetic wave,
The shield sheet includes a shield sheet long side portion along both long sides of the non-contact IC card and a shield along both short sides of the non-contact IC card when the shield sheet is overlapped with the non-contact IC card. The sheet has a short side,
The non-contact IC card communication adjustment plate, wherein the magnetic sheet is a set of at least two large pieces of magnetic sheets whose positions on the shield sheet can be changed. The communication state between the external reading device and the non-contact IC card is used by being superimposed on a non-contact IC card that can communicate with the external reading device in a non-contact manner using electromagnetic waves transmitted from the external reading device. In the non-contact IC card communication adjustment plate for adjustment,
A shield sheet that blocks or attenuates the electromagnetic wave between the external reader and the non-contact IC card, and is laminated on one or both sides of the shield sheet, between the external reader and the non-contact IC card A magnetic sheet that transmits the electromagnetic wave,
The shield sheet includes a shield sheet long side portion along both long sides of the non-contact IC card and a shield along both short sides of the non-contact IC card when the shield sheet is overlapped with the non-contact IC card. The sheet has a short side,
The magnetic sheet is a set of at least two large pieces of magnetic sheet whose position on the shield sheet can be changed, and one of the pair of large pieces of magnetic sheet is one of both short sides of the shield sheet. Of the shield sheet, and the other is in contact with only the other of the short sides of the shield sheet, and the length of the edge contacting the short side of the shield sheet is the length of the short side of the shield sheet. A non-contact IC card communication adjustment plate characterized by being shorter than 1/2 of the length. The shield sheet has a guide groove having an opening formed narrower than the inside on the surface,
The said large piece magnetic sheet has the projection part which was fitted to the said guide groove so that a movement was possible, and the position change was possible along the said guide groove. Non-contact IC card communication adjustment board. The shield sheet has a plurality of fixing holes whose openings are formed narrower than the inside on the surface,
The large-sized magnetic sheet has protrusions that can be fitted into and removed from the plurality of fixing holes, and the protrusions can be selectively fitted into and removed from the fixing holes to change the position. The non-contact IC card communication adjustment plate according to claim 1 or 2. The non-contact IC card communication adjustment plate according to claim 1, wherein each of the large pieces of magnetic sheets has an adhesive layer that can be attached to and detached from the shield sheet on one side. The contactless IC card communication adjustment plate according to any one of claims 1 to 5, wherein the shield sheet has a mark indicating a movement position of the large piece of magnetic sheet.

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