Game token and method of manufacturing same

Abstract

The present application provides a gaming chip in which an RFID tag is not easily removed and the RFID tag is not easily damaged by use. A gaming chip (10) in which an adhesive type RFID tag (14) is built in is provided with: an inner package member (12) having a prescribed shape for inner packaging of the RFID tag (14); a main body member (11) that is injection molded in a manner to inner package the inner package member (12) in which the RFID tag (14) is inner packaged; and a decal member (13) that shows the kind or amount of the gaming chip (10); the inner package member (12) includes a first portion (121) and a second portion (122), at least the first portion (121) or the second portion (122) has a flat surface capable of tightly adhering the adhesive type RFID tag (14), and the gaming chip is structured such that the first portion (121) and the second portion (122) are combined to form the inner package member (12), and the adhesive type RFID tag (14) is covered by the first portion (121) and the second portion (122).

Description

[0001] Cross Reference to Related Applications

[0002] In this application, the benefit of Japanese Patent Application No. 2020-74504 filed on April 20, 2020 is claimed, the contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to a gaming chip in which an RFID tag is built in, and a manufacturing method thereof. BACKGROUND

[0004] Conventionally, a gaming chip in which an RFID tag is built in as a security piece is known. The RFID tag stores therein security information such as authenticity judgment information, identification information, and the like, and a database stores therein various information related to the gaming chip in association with the security information. If the RFID tag is taken out from the gaming chip for an improper purpose, and is decrypted, copied, or the like, it adversely affects the security.

[0005] Figure 10 is a sectional view showing an example of a structure of a conventional gaming chip. In Figure 10 In the example of, a central portion of the gaming chip 100 is formed with a recess 101, and a decal member 103 is adhered in the recess. A sticker-type RFID tag 104 as a security piece is adhered to the back surface of the decal member 103 (for example, U.S. Patent No. 6659875). In the conventional gaming chip 100, the security piece can be built in the gaming chip by such a structure.

[0006] Further, a gaming chip in which a coil-type RFID tag is built in as a security piece is also known. With respect to the coil-type RFID tag, for example, a resin-made main body member is molded in a manner that the coil-type RFID tag is enclosed therein, thereby constituting a gaming chip in which the RFID tag is built in. SUMMARY

[0007] Problem to be solved by the invention

[0008] However, in the conventional gaming chip in which the sticker-type RFID tag is built in, the RFID tag can be taken out as long as the decal member is peeled off. Therefore, the RFID tag can be easily taken out in a state that it is not damaged, and the risk of being counterfeited is relatively high. Further, in the conventional gaming chip in which the sticker-type RFID tag is built in, since the RFID tag is located at a position close to the surface of the gaming chip, the RFID tag is subjected to an external force via the decal member, and the risk of being broken during use is relatively high.

[0009] Further, in the existing gaming chip in which the adhesive type RFID tag is built in, since the RFID tag is located near the surface of the gaming chip, when a plurality of gaming chips are stacked and a plurality of RFID tags are simultaneously read, the distance between the plurality of RFID tags is not uniform, and the reading of the RFID tags is unstable.

[0010] On the other hand, the coil type RFID tag can be built in the center of the thickness direction of the gaming chip, and thus can be relatively stably read when stacked, and the RFID tag can be covered with a molding resin, and thus the risk of forgery due to the RFID tag being taken out, and the risk of the RFID tag being damaged due to use are relatively small. However, the gaming chip in which the coil type RFID tag is built in is directly covered with the molding resin, and thus there is a risk that the RFID tag is damaged during the manufacturing process.

[0011] The present application is to solve at least a part of the above problems.

[0012] Solution to the problem

[0013] A gaming chip of an embodiment of the present application is built in with an adhesive type RFID tag, and includes: an inner wrapping member having a predetermined shape for wrapping the RFID tag; a main body member that is injection molded so as to wrap the inner wrapping member in which the RFID tag is wrapped; and a decal member that displays the kind or amount of the gaming chip; the inner wrapping member includes a first portion and a second portion, at least the first portion or the second portion has a flat surface that can tightly contact the adhesive type RFID tag, and the gaming chip is structured such that the first portion and the second portion are combined to form the inner wrapping member, and the adhesive type RFID tag is covered by the first portion and the second portion.

[0014] According to this structure, the adhesive type RFID tag is built in the gaming chip in a state of being wrapped in the inner wrapping member. Thus, the RFID tag is not easily taken out, and the RFID tag is not damaged due to use. Further, the RFID tag is injection molded with the main body member around it in a state of being wrapped in the inner wrapping member, and thus the possibility that the RFID tag is damaged due to this manufacturing process can be reduced.

[0015] The entire surface of the inner wrapping member can be covered by the injection molded main body member and the decal member. According to this structure, since the inner wrapping member in which the RFID tag is wrapped does not protrude to the surface of the gaming chip, security can be ensured.

[0016] The inner wrapping member in which the RFID tag is wrapped can be located in the center of the gaming chip, and the decal member can be located in the peripheral portion of the gaming chip in the thickness direction. According to this structure, the RFID tag can be located inside the decal.

[0017] The RFID tag can store information related to the gaming chip, and the gaming chip can be read in a state of being stacked. According to this configuration, a plurality of RFID tags of a plurality of gaming chips stacked on a gaming table or even a gaming chip tray can be read at the same time.

[0018] The RFID tag can be housed at a position within ±25% of the thickness of the gaming chip from the center in the thickness direction of the gaming chip. According to this configuration, even in a case where a plurality of gaming chips are stacked, the distance deviation between a plurality of adjacent RFID tags can be reduced, and thus the RFID tag can be stably read.

[0019] The first portion and the second portion can be combined to constitute a closed space for accommodating the RFID tag. According to this configuration, the adhesive-type RFID tag is built in the gaming chip in a state of being closed in the closed space formed by the housing member.

[0020] The closed space for accommodating the RFID tag can be constituted by pressing the first portion into the second portion. According to this configuration, the RFID tag can be easily and reliably housed in the housing member when the gaming chip is manufactured.

[0021] The closed space for accommodating the RFID tag can be constituted by engaging the first portion and the second portion with each other. According to this configuration, the RFID tag can be easily and reliably housed in the housing member when the gaming chip is manufactured.

[0022] The closed space for accommodating the RFID tag can be constituted by adhering the first portion and the second portion to each other. According to this configuration, the RFID tag can be easily and reliably housed in the housing member when the gaming chip is manufactured.

[0023] The housing member in which the RFID tag is housed can be constituted by sandwiching the RFID tag between the first portion and the second portion. According to this configuration, the RFID tag can be easily housed in the housing member when the gaming chip is manufactured.

[0024] The housing member in which the RFID tag is housed can be constituted by sandwiching the RFID tag between the first portion and the second portion and adhering the first portion and the second portion. According to this configuration, the RFID tag can be reliably housed in the housing member when the gaming chip is manufactured.

[0025] The first portion and the second portion can be linked. According to this configuration, the operation of housing the RFID tag in the housing member becomes easy.

[0026] The first portion and the second portion can be joined in a hinge shape. According to this structure, the operation of enclosing the RFID tag in the enclosing member becomes easy.

[0027] The diameter of the RFID tag can be larger than the diameter of the decal member. In the existing RFID tag which is attached to the back of the decal, the size of the RFID tag cannot be set larger than the decal, but by adopting a structure in which the main member is injection molded so as to cover the enclosing member in which the RFID tag is enclosed, the size of the RFID tag is no longer limited by the size of the decal and can be made sufficiently large.

[0028] The specific gravity of the enclosing member can be larger than the specific gravity of the main member. According to this structure, the gaming chip can be provided with an arbitrary weight.

[0029] The specific gravity of the enclosing member can be smaller than the specific gravity of the main member. According to this structure, the gaming chip can be provided with an arbitrary weight.

[0030] The enclosing member can be configured to be formed in the prescribed shape by injection molding. According to this structure, the enclosing member can be easily manufactured.

[0031] A manufacturing method of a gaming chip of one embodiment of the present application includes: a first step of attaching a sticker-type RFID tag to a first portion in which a flat surface for tightly attaching the sticker-type RFID tag is formed in advance; a second step of covering a second portion on the first portion in which the RFID tag is tightly attached, to configure an enclosing member in which the RFID tag is enclosed; and a third step of insert-molding the enclosing member in which the RFID tag is enclosed as an insert portion, to configure a main body in which the enclosing member in which the RFID tag is enclosed is enclosed.

[0032] According to this structure, a gaming chip in which a sticker-type RFID tag is built in a state of being enclosed in an enclosing member can be manufactured.

[0033] A gaming chip of one embodiment of the present application has an RFID tag built in, and includes: an enclosing member having a prescribed shape for enclosing the RFID tag; a main member which is injection molded so as to enclose the enclosing member in which the RFID tag is enclosed; and a decal member which displays the kind or amount of the gaming chip; the gaming chip is structured so that a first portion and a second portion are combined to form the enclosing member, the RFID tag is covered with the first portion and the second portion, and the enclosing member is covered with the main member and the decal member with the enclosing member as the center.

[0034] According to this structure, the RFID tag is built in the token in a state of being enclosed in the enclosing member. Thus, the RFID tag is not easily taken out, and the RFID tag is not damaged by use. Further, the RFID tag is injection-molded around the main member in a state of being enclosed in the enclosing member, and thus, it is possible to reduce the possibility that the RFID tag is damaged by this manufacturing process. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 A perspective view of a token related to the first embodiment of the present application;

[0036] Figure 2 A sectional view of a token related to the first embodiment of the present application;

[0037] Figure 3 An exploded sectional view of a token related to the first embodiment of the present application;

[0038] Figure 4 A flowchart of a manufacturing method of a token related to the first embodiment of the present application;

[0039] FIG. 5A is a view showing a stacked state of a conventional token in which an RFID tag is arranged on one side in a thickness direction of the token;

[0040] FIG. 5B is a view showing a stacked state of a token of the first embodiment of the present application in which an RFID tag is arranged at the center in a thickness direction of the token;

[0041] Figure 6 A view showing a structure of an enclosing member of the second embodiment of the present application;

[0042] Figure 7 A view showing a structure of an enclosing member of the third embodiment of the present application;

[0043] Figure 8 A sectional view of a token related to the fourth embodiment of the present application;

[0044] Figure 9 An exploded sectional view of a token related to the fourth embodiment of the present application;

[0045] Figure 10 A sectional view showing a structure example of a conventional token;

[0046] Figure 11 An exploded perspective view of an enclosing member and an RFID tag of a token related to the fifth embodiment of the present application;

[0047] Figure 12 A plan view of an RFID tag related to the fifth embodiment of the present application;

[0048] Figure 13 is a cross-sectional view of the game chip related to the fifth embodiment of the present application, and an RFID tag;

[0049] Figure 14 is a cross-sectional view of the game chip related to the fifth embodiment of the present application. DETAILED DESCRIPTION

[0050] Hereinafter, a game chip related to the present application will be described in detail with reference to the drawings. In the following description, a game chip as an embodiment of the present application is described as a circular plate-shaped game chip, but the present application is not limited to the following embodiment. For example, the game chip can be a rectangular plate-shaped game chip, or can be another shape. Further, the game chip can be a playing card. Further, the following embodiment includes elements that are easily thought of by those skilled in the art or are substantially the same.

[0051] Figure 1 is a perspective view of a game chip related to the first embodiment of the present application. As shown in Figure 1 the game chip 10 has a circular plate shape as a whole. Hereinafter, two planes of the circular plate shape are referred to as surfaces. The game chip 10 includes a main member 11 having at least an outer surface that is a part of the game chip 10, and a decal member 13 located at a central portion of the two surfaces of the game chip 10. On the surfaces of the game chip 10, the main member 11 has a donut shape, and the decal member 13 is disposed inside the main member 11, and the main member 11 is located around the decal member 13.

[0052] The side surface of the game chip 10 is composed of the main member 11. The side surface is color- divided into three layers in the thickness direction. The two layers on the two surface sides (outer sides) are the same color, and the color of the middle layer is different from the colors of the two layers on the surface sides. As a result, the game chip 10 has a stripe pattern in which the color changes in the thickness direction on the side surface.

[0053] Further, the game chip 10 is provided with a pattern at a predetermined angle interval, the pattern extending from the edge of the surface on one side of the main member 11 to the edge of the surface on the other side via the side surface. As a result, a stripe pattern in which the color changes in the circumferential direction is formed on the side surface, and a stripe pattern in which the color changes at a predetermined interval in the circumferential direction is also formed on the edge of the surface. The above pattern on the edge of the surface and the side surface of the main member 11 and the colors constituting the pattern indicate at least any one of the kind and the amount (value) of the game chip 10.

[0054] Figure 2 is a cross-sectional view of the game chip related to the first embodiment of the present application, Figure 3 is a cross-sectional view of the game chip related to the first embodiment of the present application, Figure 2 and Figure 3As shown, the token 10 includes a main member 11, an inner wrapping member 12, a decal member 13, and an RFID tag 14.

[0055] The RFID tag 14 is wrapped in the inner wrapping member 12. The main member 11 is formed so as to cover the edge portions of both surfaces of the inner wrapping member 12 throughout the entire circumference. The decal member 13 is disposed at the step between the main member 11 and the inner wrapping member 12. As a result, on the surface, the main member 11 and the decal member 13 are substantially flush.

[0056] The inner wrapping member 12 includes a first portion 121 and a second portion 122. The first portion 121 and the second portion 122 are each formed by injection molding resin. The first portion 121 has a peripheral wall 121a at the peripheral edge portion of a circular plate shape, and is substantially in the shape of a tray. An inner bottom portion 121b inside the peripheral wall 121a is a flat surface so as to be able to be in close contact with the adhesive type RFID tag 14. The second portion is a circular plate shape, and has a flange 122a at the peripheral edge portion.

[0057] The specific gravity of the inner wrapping member 12 can be greater than that of the main member 11, or can be less than that of the main member 11. By appropriately setting the specific gravity of the inner wrapping member 12, the weight of the token 10 is determined. That is, if the size (diameter and thickness) of the token 10 is determined and the material of the main member 11 is determined, the specific gravity of the inner wrapping member 12 can be determined so as to obtain the required weight of the token 10. Alternatively, after the size of the token 10 is determined and the material of the inner wrapping member 12 is determined, the specific gravity of the main member 11 can be determined so as to obtain the required weight of the token 10. The specific gravity of the inner wrapping member 12 and the main member 11 can be adjusted by mixing metal powder into the material thereof.

[0058] The RFID tag 14 is an adhesive type RFID tag, and is adhered to the flat inner bottom portion 121b of the first portion 121. The first portion 121 and the second portion 122 are combined with each other by pressing the second portion 122 into the peripheral wall of the first portion 121, and abutting the flange 122a of the second portion 122 against the upper portion of the peripheral wall 121a of the first portion 121. At this time, a closed space 12a for accommodating the RFID tag 14 is formed between the first portion 121 and the second portion 122. It is to be noted that the contact portion between the first portion 121 and the second portion 122 is adhered by an adhesive.

[0059] The RFID tag 14 is a passive type RFID tag, and obtains power by being excited by electromagnetic waves emitted from an RFID reader. The RFID reader reads the information stored in the RFID tag 14 using electromagnetic waves. The RFID reader is capable of simultaneously reading a plurality of RFID tags 14 respectively built in a plurality of tokens 10 stacked together.

[0060] The RFID tag 14 stores information related to the token 10. The information includes at least any of identification information (ID) for uniquely identifying the token 10, the kind of the token 10, and the amount, and further can include information indicating a history of the token 10 or the person who holds the token 10.

[0061] As described above, the housing member 12 is a capsule-shaped container having a hollow circular plate shape, and the RFID tag 14 is housed in the closed space 12a. Further, the RFID tag 14 is covered by the first portion 121 and the second portion 122 in a manner that the RFID tag 14 is sandwiched between the first portion 121 and the second portion 122. Further, the RFID tag 14 is in close contact with the planar inner bottom portion 121b of the first portion 121.

[0062] The main body member 11 is formed by injection molding in a manner that the peripheral edge portion and the side surface of the surface of the housing member 12 in which the RFID tag 14 is housed are covered throughout the entire circumference. Thus, the main body member 11 is formed in a hollow circular shape like a doughnut, and the housing member 12 is housed inside the main body member 11. That is, the main body member 11 is injection molded in a manner that the housing member 12 is housed.

[0063] If the main body member 11 is formed around the housing member 12, a portion of the surface of the main body member 11 other than the peripheral edge portion of the housing member 12 is exposed inside the surface of the main body member 11. A step is formed between the exposed portion 12b of the housing member 12 and the annular surface of the main body member 11, and a circular recess 12c is formed by the step.

[0064] The decal member 13 has substantially the same shape as the recess 12c, and is disposed in the recess 12c and adhered to the exposed portion 12b. As a result, the surface of the decal member 13 is at substantially the same height as the annular surface of the main body member 11.

[0065] The surface of the decal member 13 displays at least any of the kind and the amount of the token 10. The back surface of the decal member 13 is coated with an adhesive, and is adhered to the exposed portion 12b of the housing member 12 by the adhesive.

[0066] As described above, the entire surface of the housing member 12 is covered by the main body member 11 and the decal member 13, and the housing member 12 has no exposed portion in the token 10. Therefore, the possibility that the housing member 12 is damaged during use is small.

[0067] The RFID tag 14 is coated with an adhesive on the back surface, and is attached to the inner bottom portion 121b of the first portion 121 of the inner housing member 12 by the adhesive. Further, the height of the sealed space formed inside the inner housing member 12 is greater than the thickness of the RFID tag 14, and thus the RFID tag 14 does not contact the inner side surface of the second portion 122 in a state where the RFID tag 14 is attached to the inner bottom portion 121b of the first portion.

[0068] On the other hand, the height of the sealed space formed inside the inner housing member 12 is slightly greater than the RFID tag 14. Thus, if the inner housing member 12 is improperly taken out from the main body member 11 or the inner housing member 12 is broken to take out the RFID tag 14, the RFID tag 14 is likely to be broken. As such, in the gaming chip 10 of the present embodiment, it is difficult to take out the RFID tag 14 without breaking it.

[0069] As described above, in the gaming chip 10 of the present embodiment, the inner housing member 12 that houses the RFID tag 14 is located at the central portion in the thickness direction of the gaming chip 10, and the decal member 13 is located at the peripheral portion in the thickness direction of the gaming chip 10. Thus, the RFID tag 14 is located at substantially the center in the thickness direction of the gaming chip 10. Specifically, the RFID tag 14 is disposed at a position within ±25% from the center in the thickness direction of the gaming chip 10. Thus, even if a plurality of gaming chips 10 are stacked in an arbitrary orientation, the distance between adjacent RFID tags 14 is not deviated or is slightly deviated, and the RFID reader can stably read by electromagnetic waves.

[0070] Further, in the gaming chip 10 of the present embodiment, the size of the RFID tag 14 is not limited by the size of the decal member 13, and it is possible to ensure that the RFID tag 14 has a size necessary for reading by the RFID reader. In the present embodiment, as shown in FIG. 1, the diameter of the RFID tag 14 is greater than the diameter of the decal member 13. Figure 2

[0071] Figure 4 is a flowchart of a manufacturing method of a gaming chip to which the first embodiment of the present application relates. In the manufacturing method of the gaming chip 10, first, the first portion 121 and the second portion 122 that constitute the inner housing member 12 are prepared. Then, the RFID tag 14 is attached to the center of the planar inner bottom portion 121b of the first portion 121 (step S41).

[0072] ​Next, the second portion 122 is pressed into the first portion 121 in which the RFID tag 14 is attached to the inner bottom 121b, and the first portion 121 and the second portion 122 are closed in a state in which the RFID tag 14 is housed in the internal sealed space (step S42). The contact portions of the first portion 121 and the second portion 122 are bonded by an adhesive.

[0073] Next, the inner housing member 12 in which the RFID tag 14 is housed is held as an insert member in a mold, and the main body member 11 is formed by insert injection molding (step S43). Then, in the structure in which the inner housing member 12 and the main body member 11 are integrated, the decal member 13 is attached to each of the two exposed surfaces 12b of the inner housing member 12, and the token 10 is manufactured (step S44).

[0074] As described above, in the manufacturing method of the token 10 of the present embodiment, the first portion 121 and the second portion 122 that constitute the inner housing member 12 are formed in advance in a manner in which a sealed space for housing the RFID tag 14 is formed by combining with each other. Therefore, the first portion 121 and the second portion 122 do not significantly deform at the stage of housing the RFID tag 14 and at the stage of manufacturing the token 10, and the RFID tag 14 is protected by the inner housing member 12 in the manufacturing process of the token 10, and the RFID tag 14 is not subjected to a large external force. Therefore, it is possible to reduce the possibility of the RFID tag 14 being broken in the manufacturing process.

[0075] Further, as described above, in the token 10 of the present embodiment, the RFID tag 14 is located at substantially the center in the thickness direction of the token 10. Therefore, the distance from the RFID tag 14 to the upper and lower surfaces is substantially uniform regardless of which face of the token 10 is placed upward.

[0076] FIG. 5A is a view that shows a stacked state of a conventional token in which the RFID tag is disposed to one side in the thickness direction of the token, and FIG. 5B is a view that shows a stacked state of the token of the present embodiment in which the RFID tag is disposed at the center in the thickness direction of the token. In FIGS. 5A and 5B, the token 100 and the token 10 are schematically shown, and the size ratio of the token is shown differently in each of the above-described drawings for the sake of facilitating explanation of the effect of the present embodiment.

[0077] As shown in FIG. 5A, in the conventional token 100, since the RFID tag 104 is disposed to one side of the surface, in the case where a plurality of tokens 100 are stacked in an arbitrary orientation, the interval of the adjacent RFID tags 104 becomes uneven. It is known through experiments that, when a plurality of RFID tags 104 of a plurality of tokens 100 stacked in this manner are simultaneously read by an RFID reader, the reading is unstable.

[0078] On the other hand, as shown in FIG. 5B, in the gaming chip 10 of the present embodiment, since the RFID tag 14 is located at the center in the thickness direction of the gaming chip, the interval between adjacent gaming chips 10 is uniform even in the case where a plurality of gaming chips 10 are stacked in an arbitrary orientation. It is known through experiments that, when a plurality of RFID tags 14 of a plurality of gaming chips 10 stacked in this manner are simultaneously read by an RFID reader, the reading is stable compared to the case of FIG. 5A.

[0079] In order to obtain such an effect, as described above, the RFID tag 14 is preferably disposed at a position within ±25% from the center in the thickness direction of the gaming chip 10, more preferably within ±10% from the center in the thickness direction of the gaming chip 10, and further preferably within ±5% from the center in the thickness direction of the gaming chip 10.

[0080] Note that, in the above embodiment, the first portion 121 and the second portion 122 are fixed to each other by pressing the second portion 122 into the first portion 121, but the first portion 121 and the second portion 122 can be fixed to each other by latching the first portion 121 and the second portion 122 with a latching claw on this basis or instead. In this case, the latching claw is formed on one of the first portion 121 and the second portion 122, and a latching recess that latches with the latching claw is formed on the other.

[0081] Figure 6 is a view showing the structure of the inner packaging member of the second embodiment of the present application. In Figure 6 In the example, the first portion 121 and the second portion 122 that constitute the inner packaging member 12 are linked by a linking sheet 123. The linking sheet 123 is flexible, and the angle of the first portion 121 and the second portion 122 can be arbitrarily changed before the first portion 121 and the second portion 122 are combined. With this structure, the RFID tag 14 is disposed between the first portion 121 and the second portion 122, and the first portion 121 and the second portion 122 are fixed to each other by pressing or latching, so that the RFID tag 14 can be housed in the sealed space.

[0082] Note that, the first portion 121 and the second portion 122 can be linked in a hinge shape. In this case, the RFID tag 14 can be placed between the first portion 121 and the second portion 122 while the first portion 121 and the second portion 122 are kept linked, and the first portion 121 and the second portion 122 are combined to each other by pressing or latching in a state where the RFID tag 14 is housed in the sealed space.

[0083] Figure 7 is a view showing the structure of the inner packaging member of the third embodiment of the present application. InFigure 7 In the example, the inner packaging member 12' is formed of a bag-shaped film. That is, a first piece 121' and a second piece 122' are partially bonded, and are partially open. The RFID tag 14 is inserted between the first piece 121' and the second piece 122' from the open portion, so that the RFID tag 14 can be held by the first piece 121' and the second piece 122'. In this example, a closed space for accommodating the RFID tag 14 is formed between the first piece 121' and the second piece 122', and the RFID tag 14 is protected.

[0084] Note that the first piece 121' and the second piece 122' can be bonded to each other with the RFID tag 14 held therebetween. In this case, the RFID tag 14 cannot be taken out of the inner packaging member 12'. Further, the first piece 121' and the second piece 122' can not be connected. In this case, the first piece 121' and the second piece 122' can be bonded with the RFID tag 14 held therebetween.

[0085] Figure 8 is a sectional view of a gaming chip according to a fourth embodiment of the present application, Figure 9 is an exploded sectional view of a gaming chip according to the fourth embodiment of the present application. The same reference numerals are added to the same structures as those of the first embodiment, and the description thereof is omitted. In the gaming chip 10' of the present embodiment, the inner packaging member 12" is thinner than the inner packaging member 12 of the first embodiment. Further, the main body member 11 is injection molded so as to cover the entire surface of the inner packaging member 12' rather than only the edge thereof.

[0086] Specifically, the main body member 11 is formed by insert molding the inner packaging member 12" in which the RFID tag 14 is accommodated as an insert member. At this time, the inner packaging member 12" is supported by a support member in a mold, and thus a hole corresponding to the support member is formed in the surface of the main body member 11' to which the decal member 13 is attached. The hole is covered by the attachment of the decal member 13, and is not exposed in the manufactured gaming chip 10'.

[0087] According to the gaming chip 10' of the present embodiment, the entire surface of the inner packaging member 12" is covered by the main body member 11', and thus the RFID tag 14 is not exposed even if the decal member 13 is peeled off.

[0088] Figure 11An exploded perspective view of the inner package member and the RFID tag of the gaming chip according to the fifth embodiment of the present application. The inner package member 120 is formed by bonding a first part 1201 and a second part 1202. The first part 1201 and the second part 1202 are identical in shape, and a step 1203 is formed at the rim of the circular plate shape, and a protrusion 1204 of the circular plate shape is formed at the center of the circular plate shape. The step 1203 at the rim and the protrusion 1204 at the center are identical in height, and the respective upper surfaces are flat surfaces.

[0089] Figure 12 A plan view of the RFID tag according to the fifth embodiment of the present application. The RFID tag 14 is of the adhesive type, and is formed of a circular sheet-shaped film. An adhesive is provided on one side of the film. A circuit 141 is provided at the periphery of the film. An antenna 142 extends from one side of the circuit 141. The antenna 142 extends in a spiral shape along the outer periphery of the film, and is connected to the circuit 141. In this way, in the RFID tag 14 according to the present embodiment, the antenna is disposed along the outer periphery at the rim, avoiding the central portion. Thus, a larger range of radio waves can be received.

[0090] As shown in Figure 11 , the RFID tag 14 is aligned substantially at the center of the first part 1201 or the second part 1202, and is bonded and fixed to the protrusion 1204 of the first part 1201 or the second part 1202 (the side opposite to the bonding surface of the RFID tag 14). At this time, the antenna 142 is disposed so as to avoid the protrusion 1204.

[0091] Figure 13 An exploded sectional view of the inner package member and the RFID tag of the gaming chip according to the fifth embodiment of the present application. As described above, first, the bonding surface of the RFID tag 14 is bonded to the protrusion 1204 of either the first part 1201 or the second part 1202 in a manner aligned at the center. Thereafter, the step 1203 and the protrusion 1204 of each of the first part 1201 and the second part 1202 are bonded to each other by an adhesive. As shown in Figure 13 , the diameter of the RFID tag 14 is slightly smaller than the inner side of the step 1203 of the first part 1201 and the second part 1202 that form the inner package member 120, and thus, even if the step 1203 of the first part 1201 and the step 1203 of the second part 1202 are bonded, the RFID tag 14 does not interfere therewith.

[0092] Thus, the inner packaging member 12 in which the RFID tag 14 is housed is produced, and the circuit or antenna of the RFID tag 14 is not pressed by the first portion 1201 and the second portion 1202 of the inner packaging member 12, and the RFID tag 14 is fixed in the inner packaging member 120. The first portion 1201 and the second portion 1202 are aligned and bonded at the land portion 1203 and the protrusion portion 1204, and thus the inner packaging member 12 in a circular plate shape is produced.

[0093] Figure 14 A cross-sectional view of the gaming chip 10' according to the fifth embodiment of the present application. The inner packaging member 12 in a circular plate shape in which the RFID tag 14 is housed is housed in the main body member 11. The main body member 11 is provided so as to cover the entire circumference of the inner packaging member 12 from the side surface to the two flat surfaces of the inner packaging member 12. The central portion of the inner packaging member 12 in which the two flat surfaces are exposed is covered by the decal member 13.

[0094] Thus, the side surface and the peripheral edge of the flat surface of the inner packaging member 12 in which the RFID tag 14 is housed are covered by the main body member 11, and the remaining portion, i.e., the central portion of the two flat surfaces, is covered by the decal member 13, and thus the inner packaging member 12 is housed in the gaming chip without an exposed portion. In this manner, the side surface and the peripheral edge of the flat surface are both covered by the main body member 11, and thus the inner packaging member 12 and even the RFID tag 14 are protected from impact even in the case where an impact is applied to the gaming chip (for example, in the case where the gaming chip falls, etc.).

[0095] Note that the inner packaging member 12 and the main body member 11 can be made of different base materials (materials). Further, the surface of the inner packaging member 12 can be marked with information for identifying the RFID tag 14 by laser engraving or ink printing. Thus, even in the case where the RFID tag 14 malfunctions and cannot be read, the RFID tag 14 can be identified by the mark.

[0096] Note that in the above embodiments, the RFID tag 14 is of the adhesive type, but the RFID tag 14 is not limited thereto, and can be, for example, a sheet type having no adhesive surface. Further, the RFID tag 14 can be a coil type. Further, the RFID tag 14 can be an active type.

[0097] Further, in the above embodiments, the gaming chip 10, 10' is in a circular plate shape, but the shape of the gaming chip is not limited thereto, and can be, for example, a rectangular plate shape.

[0098] Symbol explanation:

[0099] 10, 10', 100 gaming chip;

[0100] 11, 11' body member;

[0101] 12, 12' inner packet member;

[0102] 121, 121' first portion;

[0103] 122, 122' second portion;

[0104] 13 applique member;

[0105] 14 RFID tag.

Claims

1. A gaming chip in which a sticking type RFID tag is built in, and which is provided with: an inner package member having a prescribed shape for inner packaging the RFID tag; a main body member which is injection molded in a manner of inner packaging the inner package member in which the RFID tag is inner packaged; and a decal member which shows a kind or an amount of the gaming chip, the inner package member including a first portion and a second portion, at least the first portion or the second portion having a flat surface capable of tightly contacting the sticking type RFID tag, the gaming chip being structured such that: the first portion and the second portion are combined to form the inner package member, the sticking type RFID tag is covered by the first portion and the second portion, and a gap is ensured between the RFID tag and either one of the first portion and the second portion.

2. The gaming chip according to claim 1, wherein: an entire surface of the inner package member is covered by the main body member and the decal member which are injection molded.

3. The gaming chip according to claim 1, wherein: an entire surface of the inner package member is covered by the main body member which is injection molded.

4. The gaming chip according to claim 1, wherein: the inner package member in which the RFID tag is inner packaged is located at a central portion of the gaming chip, and the decal member is located at a peripheral portion in a thickness direction of the gaming chip.

5. The gaming chip according to claim 1, wherein: the RFID tag stores information related to the gaming chip, and is capable of being read in a state in which a plurality of the gaming chips are stacked.

6. The gaming chip according to claim 1, wherein: the RFID tag is inner packaged at a position within ±25% of a thickness of the gaming chip from a center in a thickness direction of the gaming chip.

7. The gaming chip according to claim 1, wherein: the first portion and the second portion are combined to constitute a closed space for accommodating the RFID tag.

8. The gaming chip according to claim 7, wherein: the closed space for accommodating the RFID tag is constituted by pressing the first portion into the second portion.

9. The gaming chip according to claim 7, wherein: the closed space for accommodating the RFID tag is constituted by engaging the first portion and the second portion with each other.

10. The gaming chip according to claim 7, wherein: the closed space for accommodating the RFID tag is constituted by adhering the first portion and the second portion to each other.

11. The gaming chip according to claim 1, wherein: the inner package member in which the RFID tag is inner packaged is constituted by sandwiching the RFID tag between the first portion and the second portion.

12. The gaming chip according to claim 11, wherein: the inner package member in which the RFID tag is inner packaged is constituted by sandwiching the RFID tag between the first portion and the second portion and adhering the first portion and the second portion to each other.

13. The gaming chip according to claim 1, wherein: the first portion and the second portion are linked. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 14. The gaming chip according to claim 13, wherein the first portion is hingedly connected to the second portion.

15. The gaming chip according to claim 1, wherein a diameter of the RFID tag is larger than a diameter of the decal member.

16. The gaming chip according to claim 1, wherein a specific gravity of the inner package member is larger than a specific gravity of the main body member.

17. The gaming chip according to claim 1, wherein a specific gravity of the inner package member is smaller than a specific gravity of the main body member.

18. The gaming chip according to claim 1, wherein the inner package member is formed into the prescribed shape by injection molding.

19. A manufacturing method of a gaming chip, comprising: a first step of closely attaching a sticker-type RFID tag to a first portion, the first portion being previously formed with a flat surface for close attachment of the sticker-type RFID tag; a second step of covering the first portion with a second portion, the first portion having the RFID tag closely attached thereto, to thereby form an inner package member that packages the RFID tag; and a third step of insert-molding the inner package member that packages the RFID tag as an insert portion, to thereby form a main body that packages the inner package member that packages the RFID tag, a gap is ensured between the RFID tag and either one of the first portion and the second portion by the second step.

20. A gaming chip having an RFID tag built therein, comprising: an inner package member having a prescribed shape for packaging the RFID tag; a main body member that is injection-molded in a manner of packaging the inner package member that packages the RFID tag; and a decal member that displays a kind or an amount of the gaming chip, the gaming chip being structured as follows: a first portion and a second portion are combined to form the inner package member, the RFID tag being covered by the first portion and the second portion, and, with the inner package member as a center, the inner package member is covered by the main body member and the decal member, a gap is ensured between the RFID tag and either one of the first portion and the second portion.

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