JP2009288833A - Non-contact ic card communication adjustment plate and non-contact ic card holder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a non-contact IC card communication adjustment plate which is easily manufactured at a low cost by economically utilizing a magnetic sheet. <P>SOLUTION: This non-contact IC card communication adjustment plate 1 is overlapped on a non-contact IC card 30 communicable with an external device 40 in a non-contact state by use of an electromagnetic wave emitted by the external device 40 for use, blocks or attenuates the electromagnetic wave between the external device 40 and the non-contact IC card 30, and has: a shield sheet 10; a porous magnetic sheet 20, 20A laminated on one face or both faces of the shield sheet 10, having a plurality of through-holes 21, 21a transmitting the electromagnetic wave between the external device 40 and the non-contact IC card 30. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention adjusts the communication state between an external 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 device in a non-contact manner using electromagnetic waves transmitted from the external device. The present invention relates to a non-contact IC card communication adjusting plate and a non-contact IC card storage device that can be used while storing the non-contact IC card.

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.

  Similarly to Patent Document 1, Patent Document 2 is obtained by laminating a magnetic sheet on a conductive sheet, and the magnetic sheet has a shape smaller than the shape of the conductive sheet. They are not stacked.

JP 2006-350748 A Japanese Patent No. 3872496

  However, in the technique described in Patent Document 1, a highly permeable layer is formed on the entire inner side of the electromagnetic shield layer while leaving the outer peripheral edge, so that communication between the external device and the non-contact IC card is good. However, since the area occupied by the high magnetic permeability layer is large, there is a problem that it is expensive.

  Further, Patent Document 2 is formed by laminating a magnetic sheet on the inner side in the vicinity of an outer peripheral edge portion of a conductive sheet. The inner side of one magnetic sheet as a magnetic sheet covers a wide area. What has a cut-out shape is disclosed. However, in order to manufacture a magnetic sheet having such a shape, for example, the magnetic sheet must be formed into a quadrilateral and then cut through the center side, which may cause waste in the magnetic sheet. there were. In addition, there is a problem in that manufacturing technology is required for manufacturing without cutting through the center side. Furthermore, in order to stick the magnetic sheet having such a shape to the conductive sheet, a production technique for that purpose is required.

  The present invention has been made by paying attention to such problems of the conventional technology, and can eliminate waste in the magnetic sheet and can be manufactured easily at low cost. The purpose is to provide a board.

The gist of the present invention for achieving the object lies in the inventions of the following items. [1] The external device (40) used by being superimposed on a non-contact IC card (30) that can communicate with the external device (40) in a non-contact manner using electromagnetic waves transmitted from the external device (40). In the non-contact IC card communication adjustment plate (1) for adjusting the communication state between the non-contact IC card (30) and
A shield sheet (10) that blocks or attenuates the electromagnetic waves between the external device (40) and the non-contact IC card (30);
The shield sheet (10) has a plurality of through holes (21, 21a) which are laminated on one side or both sides of the shield sheet (10) and transmit the electromagnetic wave between the external device (40) and the non-contact IC card (30). A non-contact IC card communication adjustment plate (1) comprising a porous magnetic sheet (20, 20A).

[2] The porous magnetic sheet (20, 20A) has no protruding portion outside the periphery of the shield sheet (10), and the periphery (23, 23a) of the porous magnetic sheet (20, 20A) The contactless IC card communication adjustment plate (1) according to [1], wherein the contactless IC card communication adjustment plate (1) has a notch recess (22, 22a) formed with a through hole (21, 21a).

[3] The non-contact IC card (30) includes an antenna coil (33) connected to the IC,
The porous magnetic sheet (20, 20A) overlaps at least a part of the antenna coil (33) when the shield sheet (10) is overlaid on the non-contact IC card (30). The contactless IC card communication adjustment plate (1) according to [1] or [2].

[4] The external device (40) used by being superimposed on a non-contact IC card (30) that can communicate with the external device (40) in a non-contact manner using electromagnetic waves transmitted from the external device (40). In the non-contact IC card communication adjustment plate (1A) for adjusting the communication state between the non-contact IC card (30) and
A shield sheet (10) that blocks or attenuates the electromagnetic waves between the external device (40) and the non-contact IC card (30);
A plurality of magnetic sheet pieces (100) laminated on one or both sides of the shield sheet (10) and transmitting the electromagnetic waves between the external device (40) and the non-contact IC card (30). ,
The plurality of magnetic sheet pieces (100) can simultaneously contact two peripheral edges extending in two directions connected by one corner (101) of the peripheral edges of the shield sheet (10), but extend in the same direction. A non-contact IC card communication adjustment plate (1A) characterized in that it does not contact the two peripheral edges.

[5] The non-contact IC card (30) includes an antenna coil (33) connected to the IC,
At least one of the plurality of magnetic sheet pieces (100) overlaps a part of the antenna coil (33) when the shield sheet (10) is overlaid on the non-contact IC card (30). The contactless IC card communication adjustment plate (1A) according to [4], characterized in that

[6] In the non-contact IC card storage device (50, 60) used while storing the non-contact IC card (30) that can communicate with the external device (40) in a non-contact manner,
[1] for adjusting the communication state between the external device (40) and the non-contact IC card (30) in the IC card storage (51, 63) for storing the non-contact IC card (30). To [5], the contactless IC card communication adjustment plate (1, 1A) according to any one of
The non-contact IC card communication adjustment plate (1, 1A) is attached so as to overlap the non-contact IC card (30) stored in the IC card storage (51, 63). Card holder (50, 60).

The present invention operates as follows.
The shield sheet (10) can block or attenuate electromagnetic waves to be transmitted. Further, the porous magnetic sheet (20, 20A) and the magnetic sheet piece (100) can transmit electromagnetic waves at a higher density than the air layer.

  Accordingly, when the non-contact IC card communication adjustment plate (1A) is superimposed on the side facing the external device (40) of both the front and back surfaces of the non-contact IC card (30), the non-contact IC Regardless of whether the surface on the card communication adjustment plate (1A) side is a surface provided with the porous magnetic sheet (20, 20A) or the magnetic sheet piece (100), the shield sheet (10) is removed from the external device (40). By blocking the electromagnetic wave, communication between the non-contact IC card (30) and the external device (40) can be prevented.

  Conversely, the non-contact IC card communication adjustment plate (1A) is in a state of being superimposed on the non-contact IC card (30) on the side opposite to the external device (40), that is, the non-contact IC card (30) is external. The surface on the non-contact IC card communication adjustment plate (1A) side that is in a state facing the device (40) is provided with a porous magnetic sheet (20, 20A) or a magnetic sheet piece (100). When the surface is not, the electromagnetic wave from the external device (40) passes through the non-contact IC card (30) and is attenuated by the shield sheet (10). Communication can be prevented.

  On the other hand, the non-contact IC card (30) superimposed on the non-contact IC card communication adjustment plate (1A) is in a state facing the external device (40), and the superimposed non-contact IC. When the surface on the card communication adjustment plate (1A) side is a surface provided with the porous magnetic sheet (20, 20A) or the magnetic sheet piece (100), the electromagnetic wave from the external device (40) is adjusted to contactless IC card communication. The non-contact IC card (30) is reached directly without being blocked by the plate (1A). 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 (1A) can enable or prevent communication between the non-contact IC card (30) and the external device (40).

  In the non-contact IC card communication adjustment plate (1) according to item [1], the porous magnetic sheets (20, 20A) are laminated on one side or both sides of the shield sheet (10). In the porous magnetic sheet (20, 20A), a plurality of through holes (21, 21a) are cut out over the entire surface. As a result, the amount of magnetic material used for the plurality of through holes (21, 21a) can be reduced, so that it can be manufactured at low cost.

  Moreover, since the magnetic sheet piece cut out when forming the through holes (21, 21a) can be used for other types of non-contact IC card communication adjustment plates (1A) as described later, it is useless. Can be omitted.

  The periphery (23, 23a) of the porous magnetic sheet (20, 20A) laminated on the shield sheet (10) is formed in a size that does not protrude outside the periphery (23, 23a) of the shield sheet (10). Furthermore, in the case where the periphery has a notch recess (22, 22a) formed with a through hole (21, 21a), the periphery of the notch recess (22, 22a) has a notch recess (22, 22a). 22 and 22a) are recessed inwardly from the peripheral edge where no part is formed. For this reason, for example, the sizes of the porous magnetic sheet (20, 20A) and the shield sheet (10) are substantially the same, and the notched recess (22, 20a) of the peripheral edge (23, 23a) of the porous magnetic sheet (20, 20A). 22a) and the periphery of the shield sheet (10) coincide with the periphery of the shield sheet (10), the periphery (23, 23a) of the porous magnetic sheet (20, 20A) and the periphery of the shield sheet (10) The peripheral edges of the cutout recesses (22, 22a) are not aligned with each other, but are recessed inside the region surrounded by the peripheral edge of the shield sheet (10), and from the peripheral edge of the shield sheet (10). Always in a remote location.

  That is, the peripheral edge (23, 23a) of the porous magnetic sheet (20, 20A) does not reach the peripheral edge of the shield sheet (10) at the notch recess (22, 22a) of the porous magnetic sheet (20, 20A). As a result, in an in-use state, an electromagnetic wave from the external device (40) wraps around the non-contact IC card communication adjustment plate (1) and reads information on the non-contact IC card (30) on the opposite side. The possibility of occurrence can be reduced.

  Further, since the shield sheet (10) is exposed at the portions of the plurality of through holes (21, 21a), the electromagnetic wave incident on the portions cannot read the information on the non-contact IC card (30). In a use state in which the sheet (10) is superimposed on the non-contact IC card (30), the porous magnetic sheet (20, 20A) overlaps at least a part of the antenna coil (33) of the non-contact IC card (30). By doing so, the information of the non-contact IC card (30) can be read by the electromagnetic wave incident on the overlapped portion. Further, since the shield sheet (10) is exposed, there is a possibility of occurrence of a reading error that reads information on the non-contact IC card (30) on the opposite side of the non-contact IC card communication adjustment plate (1). Can be further reduced.

  In the non-contact IC card communication adjustment plate (1A) according to item [4], a plurality of magnetic sheet pieces (100) are laminated on one side or both sides of the shield sheet (10). This magnetic sheet piece (100) is formed, for example, when a plurality of through holes (21, 21a) are formed in the porous magnetic sheet (20, 20A) of the non-contact IC card communication adjustment plate (1) according to item [1]. In addition, a magnetic sheet piece cut out from the magnetic sheet can be used. Thereby, the non-contact IC card communication adjustment plate (1, 1A) can be manufactured with almost no waste of the magnetic material.

  The plurality of magnetic sheet pieces (100) can simultaneously contact two peripheral edges extending in two directions connected by one corner (101) of the peripheral edges of the shield sheet (10), but extend in the same direction. Since it is the size which does not contact one peripheral edge, when laminating | stacking on a shield sheet (10), since it can arrange | position at random, it can manufacture easily.

  When laminating the plurality of magnetic sheet pieces (100) on the shield sheet (10), the entire antenna coil (33) of the non-contact IC card (30) fits in the gap between the plurality of magnetic sheet pieces (100). It is only necessary to avoid such an arrangement. That is, at least one of the plurality of magnetic sheet pieces (100) may be overlapped with a part of the antenna coil (33) when the shield sheet (10) is overlaid on the non-contact IC card (30). . Thereby, the information of a non-contact IC card (30) can be read with the electromagnetic waves which inject into the magnetic sheet piece (100) superimposed on the antenna coil (33).

  The IC card storage unit (51, 63) for storing the non-contact IC card (30) has a non-contact IC card (30) stored in the IC card storage unit (51, 63) so as to overlap the non-contact IC card (30). According to the non-contact IC card storage tool (50, 60) to which the contact IC card communication adjustment plate (1, 1A) is attached, the non-contact IC card communication adjustment plate (1, 1A) and the non-contact IC card (30) Can overlap with an appropriate positional relationship, so that the effect exerted by the non-contact IC card communication adjustment plate (1, 1A) can be suitably exhibited.

  According to the non-contact IC card communication adjusting plate of the invention according to claim 1, since the magnetic sheet laminated on the shield sheet is a porous magnetic sheet having a plurality of through holes formed in the magnetic sheet, The magnetic material can be manufactured at a low cost because it requires less magnetic material, and the cut magnetic sheet pieces can be used as magnetic sheet pieces for other types of contactless IC card communication adjustment plates. It is possible to eliminate generation of waste.

  Further, the notch recess formed in the peripheral edge of the porous magnetic sheet is surely located inside the region surrounded by the peripheral edge of the shield sheet, and away from the peripheral edge of the shield sheet. It is possible to reduce the possibility of occurrence of a reading error in which the electromagnetic wave of the wrap around the non-contact IC card communication adjustment plate and reads information on the non-contact IC card on the opposite side. Further, since the exposed portion of the shield sheet is distributed over the entire surface of the non-contact IC card communication adjustment plate due to the through hole of the porous magnetic sheet, information on the non-contact IC card on the opposite side of the non-contact IC card communication adjustment plate The possibility of occurrence of a reading error that reads the data can be further reduced, and the reading of information from the non-contact IC card becomes stable.

  According to the non-contact IC card communication adjusting plate of the invention according to claim 4, instead of the magnetic sheet laminated on the shield sheet, a plurality of magnetic sheet pieces are laminated on the shield sheet, and the magnetic sheet pieces are shielded. The two peripheral edges extending in two directions connected at one corner of the peripheral edge of the sheet can be contacted at the same time, but are not in contact with the two peripheral edges extending in the same direction. There are no restrictions on the orientation and arrangement of the magnetic sheet pieces, and the magnetic sheet pieces can be arranged randomly and can be easily manufactured. Also, since there is an exposed portion of the shield sheet between the magnetic sheet pieces, there is a possibility of occurrence of a reading error that reads information on the non-contact IC card on the opposite side of the non-contact IC card communication adjustment plate. The reading of information from the non-contact IC card becomes stable.

  Also, as the magnetic sheet piece, it is possible to use a sheet cut from the magnetic sheet when manufacturing the porous magnetic sheet, so that a non-contact IC card communication adjustment plate can be manufactured at a low cost with almost no waste of magnetic material. can do.

  According to the non-contact IC card storage device according to claim 6, by storing the non-contact IC card in the IC card storage unit, the non-contact IC card communication adjustment plate and the non-contact IC card overlap in an appropriate positional relationship. Therefore, the effect which a non-contact IC card communication adjustment board show | plays can be exhibited suitably.

Hereinafter, various preferred embodiments of the present invention will be described with reference to the drawings.
1 to 5 show a first embodiment of the present invention.
FIG. 1 is a plan view showing a porous magnetic sheet laminated on a non-contact IC card communication adjusting plate according to the first embodiment of the present invention, and FIG. 2 is according to the first embodiment of the present invention. FIG. 3 is a side view seen from the long side of the non-contact IC card communication adjustment plate, and FIG. 3 is a diagram for explaining the operation of the non-contact IC card communication adjustment plate according to the first embodiment of the present invention. FIG. 4 is a plan view showing a modification of the porous magnetic sheet laminated on the non-contact IC card communication adjustment plate according to the first embodiment of the present invention, and FIG. 5 is a plan view of the first embodiment of the present invention. It is a top view which shows the modification of the non-contact IC card communication adjustment board which concerns on a form. FIG. 9 is a perspective view showing a non-contact IC card, and FIG. 10 is a schematic view showing a use state of the non-contact IC card.

  As shown in FIG. 9, the non-contact IC card 30 using the non-contact IC card communication adjustment plate 1 has an IC chip 32 and an antenna coil 33 connected to the IC chip 32 embedded in a card-type main body 31. In this case, data and programs are read / written from / to the external device 40 in a wireless and non-contact manner using electromagnetic waves. The external device 40 is a card reader / writer or the like.

  As shown in FIG. 10, when the non-contact IC card 30 is irradiated with the induced electromagnetic wave from the external device 40 side, the antenna coil 33 receives the induced electromagnetic wave on the non-contact IC card 30 side, and the induced electromotive force is generated in the antenna coil 33. Arise. 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 used by being superimposed on the non-contact IC card 30 is used to prevent communication between the external device 40 and the non-contact IC card 30. And the function of blocking or attenuating electromagnetic waves between the external device 40 and the external device 40 can be exhibited.

  As shown in FIGS. 2 and 3, the non-contact IC card communication adjustment plate 1 is formed 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 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 device 40 is not contacted. It is possible to reliably block or attenuate electromagnetic waves between the IC card 30 and the IC card 30.

  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 device 40 can be prevented if one of the antennas can be shielded by the shield sheet 10. it can.

  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 and the like used are those formed in a mesh shape, a lattice shape, a foil shape, a plate shape, or the like.

  The shield sheet 10 may be provided by attaching the metal or the like formed as described above 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, any resin material such as polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET) 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, a plastic film in which a metal thin film is deposited on the surface, Plastic film with metal foil attached to the surface, plastic film with conductive resin applied to the surface, plastic with metal wire or metal net embedded inside It can be formed into a film or the like.
The shield sheet 10 formed as described above can shield an electromagnetic wave to be transmitted.

  The magnetic sheet laminated on the shield sheet 10 serves to guide the non-contact IC card 30 that communicates with the external device 40 in a non-contact manner to communicate with the external device 40, and is combined with the shield sheet 10. Thus, the communication state of the non-contact IC card 30 is suitably adjusted.

  As shown in FIGS. 1 to 4, the magnetic sheet provided in the non-contact IC card communication adjustment plate 1 of the present embodiment has a plurality of through holes 21 and 21a. The magnetic sheet having the plurality of through holes 21 and 21a is hereinafter referred to as a porous magnetic sheet 20 and 20A. The porous magnetic sheets 20 and 20A are laminated on both surfaces of the shield sheet 10.

  The porous magnetic sheets 20 and 20A are provided with a large number of through holes 21 and 21a over the entire surface thereof. In FIG. 1, all the through holes 21 are illustrated as circular ones having the same size, and in FIG. 4, all the through holes are illustrated as square through holes 21a having the same size. However, the shape is limited to these shapes. It is not intended to be limited to other shapes. The through-holes 21 and 21a may have different sizes, and may have a plurality of shapes. 1 and 4 exemplify that a large number of through holes 21 and 21a are arranged substantially evenly over the entire surface of the porous magnetic sheets 20 and 20A, but the arrangement of the through holes 21 and 21a is as follows. It does not have to be equal. The section of the magnetic sheet when the through hole is cut through the magnetic sheet is, for example, the magnetic sheet piece 100 in FIG. 6, the magnetic sheet pieces 100a, 100b, 100c, 100d in FIG. 7, or the magnetic sheet piece 100e in FIG. The present invention can be effectively used for manufacturing a contactless IC card communication adjustment plate 1A of a type different from the contactless IC card communication adjustment plate 1 of the embodiment.

  The through holes 21 and 21a are large enough to accommodate the entire antenna coil 33 built in the non-contact IC card 30 when the non-contact IC card 30 is overlaid on the non-contact IC card communication adjustment plate 1, for example. Otherwise. However, the antenna coil 33 shown in FIG. 9 is arranged in a size that surrounds an area slightly smaller than the main body 31 of the non-contact IC card 30, but the antenna coil built in the non-contact IC card 30. Are not just those that are so big. For this reason, with respect to the non-contact IC card 30 in which the antenna coil 33 smaller than the illustrated antenna coil 33 is incorporated, the through-holes 21 and 21a are sized so that the entire antenna coil 33 can be accommodated. Even so, the porous magnetic sheets 20, 20 </ b> A may be perforated so as to have an arrangement in which at least part of the antenna coil 33 overlaps in the use state.

  As shown in FIG. 2, the porous magnetic sheets 20 and 20 </ b> A are arranged so that the peripheral edges 23 and 23 a do not protrude outside the peripheral edge of the shield sheet 10. In addition, as shown in FIG. 1 and FIG. 4, the through holes 21 and 21a are cut through the peripheral edges 23 and 23a of the porous magnetic sheets 20 and 20A, and they are notched in the peripheral edges 23 and 23a. Recesses 22 and 22a are formed. Therefore, when the shape and size of the porous magnetic sheets 20 and 20A are the same as the shield sheet 10, the peripheral edges 23 and 23a of the porous magnetic sheets 20 and 20A may be laminated so as to coincide with the peripheral edge of the shield sheet 10. The peripheral edges of the notched recesses 22 and 22 a are always located inside the peripheral edge of the shield sheet 10. Thereby, the non-contact IC card 30 on the opposite side to the surface facing the external device 40 is compared with the non-contact IC card communication adjustment plate in which the entire periphery of the shield sheet and the entire periphery of the magnetic sheet are coincident. The effect of preventing a reading error that is read by the external device 40 is improved. Further, the exposed portions of the shield sheet 10 are distributed over the entire surface of the non-contact IC card communication adjustment plate 1 by the through holes 21 and 21a of the porous magnetic sheets 20 and 20A. The possibility of occurrence of a reading error that reads information on the non-contact IC card 30 on the opposite side can be further reduced. Thereby, the reading of information from the non-contact IC card 30 from which information is to be read becomes more stable.

  For the porous magnetic sheets 20 and 20A formed in this way, a material having excellent magnetic permeability μ is used. For example, at the frequency of the electromagnetic wave 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 porous magnetic sheets 20 and 20A can transmit electromagnetic waves at a higher density than the air layer.

  The porous magnetic sheets 20 and 20A can be manufactured by punching through-holes 21 and 21a from a material obtained by vapor-depositing a material such as permalloy on a plastic film or the like.

  In addition, there is no restriction | limiting in particular as a method of laminating | stacking the shield sheet 10 and the porous magnetic sheets 20 and 20A, A well-known method can be used. As an example, there is a method of laminating and integrating the shield sheet 10 and the porous magnetic sheets 20, 20 </ b> A, which are independently formed, by means such as bonding with an adhesive or a pressure-sensitive adhesive.

  The non-contact IC card communication adjustment plate 1 manufactured in this way may be approximately the same size as the non-contact IC card 30 or may have a certain margin.

Next, the operation will be described.
Since the description of the non-contact IC card communication adjustment plate 1 and the non-contact IC card communication adjustment plate 1A is common, the non-contact IC card communication adjustment plate 1 will be described as a representative.
FIG. 3 is a diagram for explaining the operation of the non-contact IC card communication adjustment plate 1 in a use state in which the non-contact IC cards 30a and 30b are superimposed on both surfaces of the non-contact IC card communication adjustment plate 1 according to the present embodiment. It is. As shown in the figure, in the state of use, the non-contact IC cards 30a and 30b are superimposed on both surfaces of the non-contact IC card communication adjusting plate 1 in which the porous magnetic sheet 20 is laminated on the shield sheet 10.

  In FIG. 3, 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. 3, the influence of the shield sheet 10 on the electromagnetic waves traveling from the left side of the shield sheet 10 toward the non-contact IC card 30a is reduced by the porous 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 magnetic field tends to concentrate in the high magnetic permeability porous magnetic sheet 20, and the non-contact IC card 30a is also placed in the magnetic field. 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 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 device 40.

  On the other hand, the electromagnetic wave traveling from the left side of the same shield sheet 10 toward the non-contact IC card 30a is not transmitted to the non-contact IC card 30b superimposed on the right side of the shield sheet 10 by the shield sheet of the non-contact IC card communication adjustment plate 1. 10, the non-contact IC card 30 b is not 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 an undesired connection between the external device 40 and the non-contact IC card 30b. Communication can be prevented.

  Such an action is exactly the same 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. Therefore, for example, as shown in FIG. 3, 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 arranged 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 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, it does not reach the non-contact IC card 30a. For this reason, the electromagnetic waves are not received by the non-contact IC card 30a, and the external device 40 on the right side of the shield sheet 10 is prevented from communicating with the non-contact IC card 30a.

  As described above, 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. Communication between the non-contact IC cards 30a and 30b and the external device 40 is suitable depending on how the non-contact IC cards 30a and 30b superimposed on the plate 1 are positioned with respect to the direction in which the electromagnetic waves emitted by the external device 40 come. Can be adjusted.

  Moreover, even if the size of the porous magnetic sheet 20 is such that the portion of the peripheral edge 23 where the notch 22 is not formed coincides with the peripheral edge of the shield sheet 10, The peripheral edge of the notch recess 22 formed in each peripheral edge 23 along the edge is always located inside the peripheral edge of the shield sheet 10, and accordingly, the external device 40 is opposite to the surface facing the external device 40. The possibility of reading information on the non-contact IC card 30 is low. That is, the notch recess 22 has a function of improving the effect of preventing the occurrence of so-called reading errors.

  Furthermore, in order to enable communication between the external device 40 and the non-contact IC card 30, it is necessary that the porous magnetic sheet 20 overlaps at least a part of the antenna coil. Since many through holes 21 are formed on the entire surface, that is, since the magnetic sheet portion between the through holes 21 and the porous magnetic sheet 20 remains on the entire surface, the through holes 21 are made much larger. As long as the number is not reduced, the porous magnetic sheet 20 does not overlap the antenna coil 33, so that communication between the external device 40 and the non-contact IC card 30 cannot be prevented. Therefore, since there is almost no restriction on the shape and size of the through hole 21 and the distribution position of the through hole 21 on the porous magnetic sheet 20, the shape and size of the through hole 21 and the through hole 21 on the porous magnetic sheet 20 Various variations can be given to the distribution position and the like.

  The porous magnetic sheet 20 may be laminated only on one side instead of being laminated on both sides of the shield sheet 10. In this case, the non-contact IC card 30 stacked on the surface on which the porous magnetic sheet 20 is not stacked cannot be read by the external device 40.

  In addition, the porous magnetic sheets 20 disposed on both surfaces of the shield sheet 10 may be the same on both surfaces of the shield sheet 10, and the shape, size, and distribution of the arrangement of the through holes 21 are completely different. Also good.

In addition, you may color the porous magnetic sheets 20 and 20A with the paint and coloring material which do not contain a metal component. By color-coding in this way, the non-contact IC card communication adjusting plate 1 can reflect the user's preference.
Further, as shown in FIG. 5, the porous magnetic sheets 20 and 20A may be formed by painting or characters such as caricatures and characters on the surface with a paint or coloring material not containing a metal component. Also in this case, the non-contact IC card communication adjustment plate 1 can reflect the user's preference.

Next, a second embodiment of the present invention will be described.
6 to 8 show a second embodiment of the present invention.
FIG. 6 is a plan view showing a contactless IC card communication adjusting plate according to the second embodiment of the present invention, and FIG. 7 includes a magnetic sheet piece having a shape different from the magnetic sheet piece in FIG. FIG. 8 is a plan view of a non-contact IC card communication adjustment plate, and FIG. 8 is a plan view of the non-contact IC card communication adjustment plate provided with a magnetic sheet piece imitating a character.

  A non-contact IC card communication adjustment plate 1A illustrated in FIG. 6 is obtained by laminating a plurality of magnetic sheet pieces 100 on a shield sheet 10. The magnetic sheet piece 100 may be obtained by cutting a magnetic sheet produced in a tape shape into small pieces, or a magnetic sheet formed when the through hole of the porous magnetic sheet described in the first embodiment of the present invention is cut out. It may be a section.

  Since the material of the magnetic sheet piece 100, the method of laminating the magnetic sheet piece 100 on the shield sheet 10, and the like are the same as those of the porous magnetic sheets 20 and 20a in the first embodiment of the present invention, description thereof will be omitted. Moreover, since the effect | action of the shield sheet 10 is the same as what was demonstrated referring FIG. 3 about the non-contact IC card communication adjustment board 1 of 1st Embodiment of this invention, it abbreviate | omits.

  The plurality of magnetic sheet pieces 100 shown in FIG. 6 are rectangular, and are arranged so that the long sides thereof extend along the direction in which the long sides of the shield sheet 10 extend, and the direction in which the long sides of the shield sheet 10 extend. However, their shape, size and arrangement are not limited to those shown in the figure. However, the size of the magnetic sheet piece 100 can be simultaneously contacted with two peripheral edges extending in two directions connected by one corner 101 of the peripheral edge of the shield sheet 10, but two peripheral edges extending in two directions. It is preferable that the size does not come into contact with other peripheral edges.

  That is, the magnetic sheet piece 100 can simultaneously contact the long side and the short side of the shield sheet 10 connected by one corner portion 101 of the shield sheet 10, but extends in the same direction and faces the short side and the short side. Or it is preferable that it is a magnitude | size which does not contact a long side and long side which oppose simultaneously. By making such a size, it is not necessary to align the direction of each magnetic sheet piece 100 when laminating on the shield sheet 10, and the manufacturing is facilitated accordingly. Further, as long as the size is as described above, the size and shape of the magnetic sheet piece used for one non-contact IC card communication adjustment plate may be any.

  At least one of the plurality of magnetic sheet pieces 100 stacked on the shield sheet 10 overlaps with a part of the antenna coil 33 of the non-contact IC card 30 in a use state in which the shield sheet 10 is superimposed on the non-contact IC card 30. Is arranged. In the non-contact IC card communication adjustment plate 1A configured as described above, since each magnetic sheet piece 100 is formed with an exposed portion of the shield sheet between the magnetic sheet piece 100 and the surrounding magnetic sheet piece 100, the non-contact IC card The possibility of occurrence of a reading error that reads information on the non-contact IC card 30a or 30b on the opposite side of the communication adjustment plate 1A can be further reduced, and reading of information from the non-contact IC card 30b or 30a can be performed. It will be stable.

  7 is obtained by replacing the magnetic sheet piece 100 of the shield sheet 10 of FIG. 6 with magnetic sheet pieces 100a, 100b, 100c, and 100d imitating four kinds of marks of playing cards. That is, the magnetic sheet piece 100a of spade, the magnetic sheet piece 100b of clover, the magnetic sheet piece 100c of heart, and the magnetic sheet piece 100d of diamond. In FIG. 7, the orientation, size, and arrangement of each mark are shown to be aligned, but it is not necessary to align the orientation, size, and arrangement. Alternatively, the spade 100a and the clover 100b may be colored black with a paint or coloring material that does not contain a metal component, and the heart 100c and the diamond 100d may be colored with red. Furthermore, any kind of mark may be used, and the kind and size of the mark to be mixed are not particularly limited.

  FIG. 8 is a diagram in which a magnetic sheet piece 100 e depicting a face-like picture is laminated on the shield sheet 10. Also in this case, the size of the magnetic sheet piece 100e and the orientation of the face may be random, and the magnetic sheet piece 100e may be colored with a paint or coloring material that does not contain a metal component.

Next, a third embodiment of the present invention will be described.
FIG. 11 is a perspective view showing a non-contact IC card storage device 50 according to the third embodiment of the present invention.
The non-contact IC card storage tool 50 shown is of a card case type. The non-contact IC card storage tool 50 is configured to allow non-contact communication between the non-contact IC card 30 and the external device 40 while storing the non-contact IC card 30. This non-contact IC card storage device 50 is formed with an IC card storage portion 51 having a substantially rectangular cross section, and the inside thereof is divided into two in the non-contact state according to the first embodiment described above. The contact IC card communication adjustment plate 1 or the non-contact IC card communication adjustment plate 1A according to the second embodiment is attached. Non-contact IC card communication adjustment plate 1 or non-contact IC card communication adjustment plate 1A (hereinafter referred to as "non-contact IC card communication adjustment plate 1 or non-contact IC card communication adjustment plate 1A") 1A ”) is attached by adhesion, welding, sewing, or the like so as not to drop out of the IC card storage portion 51.

  When the non-contact IC card 30 is stored, the IC card storage unit 51 overlaps the non-contact IC card 30 and the non-contact IC card communication adjustment plate 1 or 1A relatively little in the vertical or horizontal direction. It is formed in such a size and shape.

  The non-contact IC card 30 can be accommodated in any part of the IC card storage part 51 partitioned into two parts by the non-contact IC card communication adjustment plate 1 or 1A. When the non-contact IC card communication adjustment plate in which the magnetic sheet 20 is disposed only on one side is mounted in the IC card storage unit 51, the non-contact IC card 30 is placed in any of the two divided parts. Since the effect of the non-contact IC card communication adjustment plate varies depending on whether the non-contact IC card 30 is stored, the non-contact IC card 30 may be stored as determined appropriately.

  When the IC card storage 51 is a non-contact IC card communication adjustment plate in which the porous magnetic sheet 20 or the magnetic sheet piece 100 is laminated only on one side, the inside of the IC card storage 51 The non-contact IC card communication adjustment plate may be attached along a part of the inner wall of the IC card storage unit 51 instead of dividing the card into two.

  When the non-contact IC card communication adjustment plate 1 or 1A in which the porous magnetic sheet 20 or the magnetic sheet piece 100 is disposed on both sides is mounted in the IC card storage unit 51, the portion divided into two parts The non-contact IC card communication adjusting plate 1 or 1A has the same effect even if the non-contact IC card 30 is housed in either of them.

  The non-contact IC card storage device 50 configured as described above enables or prevents communication between the non-contact IC card 30 and the external device 40 while the non-contact IC card 30 is stored in the IC card storage unit 51. You can make adjustments.

  Although the illustrated non-contact IC card storage device 50 has an IC card storage portion 51 having a substantially rectangular cross section, the card-like base member includes a pocket with little spatial play, The contactless IC card communication adjustment plate 1 or 1A may be attached to the base member side in the pocket, and the contactless IC card 30 may be inserted into the pocket.

FIG. 12 is a perspective view showing a modification of the non-contact IC card storage device according to the third embodiment of the present invention. This non-contact IC card storage tool 60 is of a wallet type. Hereinafter, this non-contact IC card storage tool 60 is referred to as a wallet 60. The illustrated wallet 60 is a two-fold wallet, and the facing side when the wallet 60 is opened is shown.
The wallet 60 is of the wallet type, and allows the contactless IC card 30 and the external device 40 to communicate in a contactless manner with the contactless IC card 30 stored therein. The wallet 60 includes a card storage unit 61 that can store various cards, a banknote storage unit 62 that stores banknotes, and an IC card storage unit 63 that can store a non-contact IC card 30. It has been.

  The non-contact IC card communication adjustment plate 1 or 1A is fixed inside the IC card storage unit 63 by sewing or the like. When the non-contact IC card 30 is stored in the IC card storage unit 63, the non-contact IC card 30 and the non-contact IC card communication adjustment plate 1 or 1A are relatively displaced in the vertical direction or the horizontal direction. It is formed in a size and shape so that they overlap without any problems.

  In the wallet 60 configured as described above, when the non-contact IC card 30 is stored in the IC card storage unit 63 as indicated by the arrow, the non-contact IC card communication adjustment plate 1 or 1A operates as described above. Therefore, the non-contact IC card 30 can be adjusted to enable or prevent communication between the non-contact IC card 30 and the external device 40 without removing the non-contact IC card 30 from the wallet 60.

  Further, when the non-contact IC card 30 is used, it is not necessary to separately possess a card case type for storing the non-contact IC card 30, and the wallet 60 (contains a non-contact IC card) that is more convenient. Tool 60).

  The exposed portion of the shield sheet 10 in the contactless IC card communication adjustment plate 1 of the first embodiment and the contacted IC card communication adjustment plate 1A of the second embodiment is 30% of the entire surface. The following is preferable. By setting the exposed portion of the shield sheet 10 to be 30% or less of the entire surface, the entire antenna coil 33 of the non-contact IC card 30 becomes the porous magnetic sheets 20, 20A and the magnetic sheet pieces 100, 100a, 100b, 100c, 100d, 100e. It is possible to prevent the occurrence of a situation where they do not overlap at all, and to maintain a good communication state between the non-contact IC card 30 and the external device 40.

It is a top view which shows the porous magnetic sheet laminated | stacked on the non-contact IC card communication adjustment board which concerns on the 1st Embodiment of this invention. It is the side view seen from the long side of the non-contact IC card communication adjustment board concerning a 1st embodiment of the present invention. It is a figure explaining the effect | action of the non-contact IC card communication adjustment board which concerns on the 1st Embodiment of this invention. It is a top view which shows the modification of the porous magnetic sheet laminated | stacked on the non-contact IC card communication adjustment board which concerns on the 1st Embodiment of this invention. It is a top view which shows the modification of the non-contact IC card communication adjustment board which concerns on the 1st Embodiment of this invention. It is a top view which shows the non-contact IC card communication adjustment board which concerns on the 2nd Embodiment of this invention. It is a top view of the non-contact IC card communication adjustment board provided with the magnetic sheet piece of a shape different from the magnetic sheet piece in FIG. It is a top view of a non-contact IC card communication adjustment board provided with other magnetic sheet pieces. 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. It is a perspective view which shows the non-contact IC card storage tool which concerns on the 3rd Embodiment of this invention. It is a perspective view which shows the modification of the non-contact IC card storage tool which concerns on the 3rd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,1A ... Non-contact IC card communication adjustment board 10 ... Shield sheet 20 ... Porous magnetic sheet 20A ... Porous magnetic sheet 21 ... Through-hole 21a ... Through-hole 22 ... Notch recessed part 22a ... Notch recessed part 23, 23a ... Perimeter 30 ... Non-contact IC card 30a ... Non-contact IC card 30b ... Non-contact IC card 31 ... Main body 32 ... IC chip 33 ... Antenna coil 40 ... External device 50 ... Non-contact IC card case 51 ... IC card storage 60 ... Wallet 61 ... Card Storage unit 62 ... bill storage unit 63 ... IC card storage unit 100 ... magnetic sheet piece 100a ... magnetic sheet piece 100b ... magnetic sheet piece 100c ... magnetic sheet piece 100d ... magnetic sheet piece 100e ... magnetic sheet piece 101 ... corner

Claims (6)

In order to adjust the communication state between the external device and the non-contact IC card, which is used by being superimposed on a non-contact IC card that can communicate with the external device in a non-contact manner using electromagnetic waves transmitted from the external device. In the non-contact IC card communication adjustment plate,
A shield sheet that blocks or attenuates the electromagnetic wave between the external device and the non-contact IC card;
And a porous magnetic sheet having a plurality of through-holes laminated on one or both sides of the shield sheet and transmitting the electromagnetic wave between the external device and the non-contact IC card. Contact IC card communication adjustment board.   2. The porous magnetic sheet is characterized in that there is no protruding portion outside the periphery of the shield sheet, and the periphery of the porous magnetic sheet has a notch recess formed with the through hole. A contactless IC card communication adjustment plate according to 1. The non-contact IC card incorporates an antenna coil connected to the IC,
The contactless IC card communication according to claim 1, wherein the porous magnetic sheet overlaps at least a part of the antenna coil in a use state in which the shield sheet is overlapped with the contactless IC card. Adjustment plate. In order to adjust the communication state between the external device and the non-contact IC card, which is used by being superimposed on a non-contact IC card that can communicate with the external device in a non-contact manner using electromagnetic waves transmitted from the external device. In the non-contact IC card communication adjustment plate,
A shield sheet that blocks or attenuates the electromagnetic wave between the external device and the non-contact IC card;
A plurality of magnetic sheet pieces laminated on one side or both sides of the shield sheet, and transmitting the electromagnetic waves between the external device and the non-contact IC card,
The plurality of magnetic sheet pieces can be simultaneously contacted with two peripheral edges extending in two directions connected at one corner of the peripheral edge of the shield sheet, but are not in contact with the two peripheral edges extending in the same direction. A non-contact IC card communication adjustment plate, characterized in that The non-contact IC card incorporates an antenna coil connected to the IC,
5. The non-contact according to claim 4, wherein at least one of the plurality of magnetic sheet pieces overlaps a part of the antenna coil in a use state in which the shield sheet is superimposed on the non-contact IC card. IC card communication adjustment board. In a non-contact IC card storage tool that is used while storing a non-contact IC card that can communicate with an external device in a non-contact manner,
The non-contact IC card communication according to any one of claims 1 to 5, for adjusting a communication state between the external device and the non-contact IC card in an IC card storage unit that stores the non-contact IC card. With an adjustment plate,
The non-contact IC card storage device, wherein the non-contact IC card communication adjusting plate is attached so as to overlap the non-contact IC card stored in the IC card storage unit.

Images