JP2010178997A - Sealing structure for board protection case, and game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a board protection case with a seal disposed inside for eliminating the possibility of inappropriate opening caused by cutting and releasing of the seal which may occur when the seal is bonded to the outer surface of the case. <P>SOLUTION: The sealing structure the board protection case 1 including two case pieces 10 and 20 for housing a control board 50, and the seal 30 disposed between seal holding pieces 11 and 21 respectively attached to the two case pieces to bond the surfaces facing the respective seal holding pieces to the inner surfaces of the respective seal holding pieces. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention makes it possible to detect fraudulent acts by reliably leaving a trace that the board protection case has been opened by fraudulent acts such as exchanging ROM mounted on various gaming machines such as pachinko machines and slot machines. The present invention relates to a sealing structure of a substrate protection case that can be prevented and a gaming machine. In particular, in order to prevent unauthorized operation such as cutting and peeling of the seal seal that seals the protective case, it provides a technology to prevent unauthorized operation and unauthorized opening from the outside by placing the seal seal inside the protective case. is there.

By illegally replacing the ROM mounted on various gaming machines such as pachinko machines and slot machines, a so-called Goto teacher conducts a fraudulent act to conveniently advance the game contents to the player and acquire a ball. The method has become more sophisticated.
There is a high possibility that the illegal replacement of the ROM is performed before or after the game machine shipped from the factory is installed in the game hall.
As a countermeasure against such an illegal act, Patent Document 1 discloses a trace of the case where the coupling means is destroyed by coupling the case body surrounding the ROM on the control board and the cover body by a non-separable coupling means. There are proposals for technologies that ensure that these remain.
However, as the tricks of fraudsters become more sophisticated every day, there is a possibility that new coupling means may be assembled so that no trace remains after the coupling means is destroyed and the ROM is replaced.

Patent Document 2 discloses an apparatus configuration for preventing fraud, but has the same drawbacks as in Patent Document 1.
In order to deal with such problems, the board protective case is sealed with a seal sticker, but after cutting the seal sticker with a cutter, the board protective case is opened and the ROM is replaced. When the cut surface of the seal seal is repaired after the substrate protection case is closed, there are many cases in which the presence or absence of the cut portion cannot be visually determined. In order to cope with such a problem, a seal seal incorporating an RFID has been used.
That is, Patent Document 3 discloses a substrate protective case by bonding a seal seal incorporating an RFID (non-contact type storage medium) storing identification information across a case main body and a case lid constituting the substrate protective case. A technique is disclosed in which when RFID is illegally opened, RFID is broken or disconnected, making it impossible to read identification information. According to this, when the identification information stored in the RFID cannot be read using the reading device, it is possible to know that the substrate protection case has been illegally opened.
Patent Documents 4 and 5 also disclose similar fraud detection techniques using IC tags and tape-type inlets.

10 and 11 are a perspective view and an exploded perspective view showing a configuration of a conventional (unknown) substrate protection case. The substrate protective case 100 in which the control substrate 120 is accommodated has a configuration in which a transparent case main body 101 and a transparent case lid 102 are joined. A sealing seal 110 is bonded to the abutting portion 103 between the case main body and the case lid, which is located at one end of the substrate protection case 100, over the both. In addition, a fastening portion 130 with a caulking pin is provided at an end opposite to the abutting portion 103, and measures for preventing illegal acts by the seal seal 110 and the fastening portion 130 are taken.
The seal seal 110 includes an adhesive sheet 111 made of a material that can be easily broken, such as paper having an adhesive layer on one surface, and an RFID (for example, an IC tag) 112 fixed to the adhesive sheet. The RFID 112 includes a chip 113 including a power generation circuit, a modulation / demodulation circuit, a memory circuit, and a control circuit, and two conductor patterns (antenna portions) 114 extending from the chip in opposite directions. When a reading electromagnetic wave is irradiated from a reading device (not shown) toward the RFID 112, a power generation circuit in the chip generates an electromotive force by an electromagnetic induction action, and is stored in the storage circuit by a control circuit that operates by the electromotive force. The identification information can be read by reading the identification information and transmitting it from the antenna unit 114 to the reading device.

The conductor pattern 114 constituting the RFID 112 extends in the diagonal direction of the adhesive sheet 111, and the substrate protective case is illegally opened by adhering a seal seal so that the conductor pattern 114 intersects the abutting portion 103. In some cases, part of the conductor pattern may be disconnected, making it impossible to read stored information.
However, according to an experiment by the present applicant, even when the sealing pattern 110 is broken when the substrate protection case is opened and the conductor pattern constituting the RFID 112 is broken only at one place, when the substrate protection case is reclosed, It was possible to restore the continuity between the broken parts by repairing the state of the seal.
In particular, when the conductor pattern is cut at one place in the process of cutting the sealing seal 110 with a cutter along the linearly extending abutting portion 103, it is relatively easy to re-conduct the conductor pattern by a subsequent repair operation. Become.

In short, as long as the seal sticker is adhered to the outer surface of the circuit board protection case, it is impossible to reliably prevent unauthorized actions such as cutting with a cutter and peeling with a stripping solution. Although it is conceivable to adopt a structure that prevents access from the outside, for example, it is difficult to assemble the sealing seal between the inner walls of both case pieces or between the control board and the inner wall of one case piece. It is clear that it brings sex.

JP 2006-130352 A JP 2007-160004 A JP 2000-334154 A Japanese Patent No. 4129985 JP 2008-36228 A

As described above, in order to leave a trace that the board protection case containing the control board on which the ROM is mounted has been illegally opened, the board protection case is sealed by adhering the seal seal to the outer surface of the board protection case. In the case of adopting this method, it was possible to peel off the seal seal before opening the substrate protection case, or to cut so that no trace remained. Even when the board protection case is sealed with a seal sticker equipped with RFID, as long as the seal seal is exposed to the outside, it can be peeled off using a release agent, or the communication function can be restored when the case is resealed It was possible to cut in advance so that it was possible.
The present invention has been made in view of the above, and in order to eliminate the possibility of unauthorized opening by cutting and peeling of the seal seal that may occur when the seal seal is bonded to the outer surface of the case, the seal seal is disposed inside The present invention provides a substrate protective case. Moreover, the present invention provides a sealing structure for a substrate protection case that can reliably adhere a sealing seal to an arbitrary position within the case without deteriorating workability in the assembly process of the substrate protection case.
Furthermore, if the substrate protection case is illegally opened, it is an object to ensure that the seal seal is broken and leaves a trace of fraud.

In order to achieve the above object, a sealing structure of a substrate protection case according to the invention of claim 1 includes a substrate protection case having two case pieces for accommodating a control board, and a sealing seal provided on each of the two case pieces. And a sealing seal disposed between the holding pieces and having a surface facing each sealing seal holding piece adhered to an inner surface of each sealing seal holding piece.
When placing the seal sticker inside the board protection case, the problem is how to assemble the four parts of the case case, the control board, and the seal sticker. In the present invention, the seal projecting from both case pieces Since the seal seal is sandwiched and bonded between the seal holding pieces, the assembly procedure is greatly simplified, and the structure of each case piece can be simplified.
Since the both sides of the seal seal are sandwiched between the seal seal holding pieces, the seal seal can be broken in the process of opening the substrate protection case and replacing the electronic components. For this reason, the seal seal is severely divided and damaged, and cannot be recovered.

In the sealing structure of the substrate protection case according to the invention of claim 2, the sealing seal is a double-sided seal having a sheet base material and adhesive layers respectively formed on both sides of the sheet base material. And
By using the double-sided seal, it is easy to position and bond the sealing seal between the sealing seal holding pieces.
In the sealing structure of the substrate protective case according to the invention of claim 3, each adhesive layer constituting the double-sided seal is formed over substantially the entire surface of each sheet base material.
In the sealing structure of the substrate protective case according to the invention of claim 4, the inner surface of each sealing seal holding piece is provided with a convex surface that locally adheres to each adhesive layer of the double-sided seal, and is provided on each sealing seal holding piece. Further, each of the convex surfaces is formed so as to be shifted in position so that the adhesion portion with each adhesive layer does not overlap.
By constituting in this way, the part where the double-sided seal adheres to one seal seal holding piece and the other seal seal holding piece will not overlap, and when the both seal seal holding pieces are separated, The adhesion site can be separated on each sealed seal holding piece side. Even if the bonding portions are somewhat overlapped, they can be separated as long as they can be separated into the two sealed seal holding pieces at the time of opening.

In the sealing structure of the substrate protection case according to the invention of claim 5, each adhesive layer constituting the double-sided seal is partially arranged so that the positions of the adhesive layers of the adhesive layers do not overlap each other. It is characterized by.
By constituting in this way, the part where the double-sided seal adheres to one seal seal holding piece and the other seal seal holding piece will not overlap, and when the both seal seal holding pieces are separated, The adhesion site can be separated on each sealed seal holding piece side. Even if the bonding portions are somewhat overlapped, they can be separated as long as they can be separated into the two sealed seal holding pieces at the time of opening.
In the sealing structure of the substrate protective case according to the invention of claim 6, in claim 4, the convex surface is alternately striped, scattered, or meshed so that the adhesion portions with the respective adhesive layers do not substantially overlap. It is characterized by being shifted in position.
In the sealing structure of the substrate protective case according to the invention of claim 7, the adhesive layers according to claim 5 are alternately striped or meshed so that the adhesive portions with the seal seal holding pieces do not substantially overlap. It is characterized by being shifted in position.

In the sealing structure of the substrate protective case according to the invention of claim 8, the sealing seal includes a sheet base material and an adhesive layer formed on one surface of the sheet base material, and the sealing seal has an adhesive layer. It is arranged between the sealing seal holding pieces in a state where at least one valley is folded with the other surface side not inside as the inside.
In the sealing structure of the substrate protection case according to the invention of claim 9, the sealing seal includes an adhesive sheet, an IC chip fixed to the adhesive sheet surface, and an RFID including a conductor pattern extending from the IC chip. It is characterized by having.
In the sealing structure of the substrate protection case according to the invention of claim 10, when the sealing seal is divided along the convex surfaces or the adhesive layers by separating the sealing seal holding pieces, the RFID Is configured to be broken.
A gaming machine according to an eleventh aspect of the invention includes the sealing structure for a substrate protection case according to any one of the first to tenth aspects.

According to the present invention, the sealing sticker is arranged in the substrate protection case (between the sealing sticker holding pieces provided on both case pieces) so as to prevent unauthorized operation such as cutting and peeling from the outside and opening. Therefore, while improper work on the seal sticker is not possible, if the board protection case is opened improperly, the seal sticker placed inside will surely break, deform, discolor, etc. and leave a trace of fraud. Can do.
In particular, since the sealing seal is sandwiched and bonded between the sealing seal holding pieces provided at the edges of the two case pieces, and the substrate protective case is sealed so that the sealing seal cannot be accessed from the outside. Productivity can be increased by facilitating and increasing the efficiency of the sealing and sticking operation when assembling the substrate protection case.
In particular, it is configured to leave a clear trace of opening and breaking at a specific part of the seal seal that is easy to visually recognize through a transparent case piece, so it can be seen from the outside without disassembling the board protection case or using a reader It is possible to confirm the evidence of fraud. Therefore, it becomes easy to find fraud even when a seal of a type without RFID is used.

It is a disassembled perspective view of the board | substrate protective case provided with the sealing structure which concerns on one Embodiment of this invention. It is a perspective view which shows the assembly state of the board | substrate protective case of FIG. It is a front view of the board | substrate protective case of FIG. It is an expanded sectional view which shows the structure of a seal seal. (A) (b) And (c) is sectional drawing which shows the principal part structure of a board | substrate protective case. (A) And (b) is sectional drawing which shows the adhesion | attachment state and the state after peeling in the sealing structure which concerns on the 1st modification of this invention, (c) and (d) are the inner surface of each protrusion piece. FIG. (A) And (b) is explanatory drawing of the sealing structure which concerns on other embodiment of this invention. (A) And (b) is explanatory drawing of the sealing structure which concerns on other embodiment of this invention. It is a structure explanatory view of the seal sticker concerning other embodiments of the present invention. It is a perspective view which shows the structure of the conventional board | substrate protective case. It is a disassembled perspective view which shows the structure of the conventional board | substrate protective case.

Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings.
1 is an exploded perspective view of a substrate protection case having a sealing structure according to an embodiment of the present invention, FIG. 2 is a perspective view showing an assembled state thereof, FIG. 3 is a front view thereof, and FIG. FIG. 5 is an enlarged cross-sectional view showing a configuration of a seal seal, and FIGS. 5A, 5B, and 5C are cross-sectional views showing a main configuration of a substrate protection case.
The board protective case 1 is assembled to a back surface of a gaming machine such as a pachinko gaming machine via a pedestal (not shown) in a state in which a control board (printed board) 50 on which electronic components such as a ROM are mounted is housed inside.
The substrate protective case 1 is composed of two transparent resin-made case pieces (a lower case piece 10 and an upper case piece 20) accommodated inside with a control board (printed board) 50 mounted with a ROM interposed therebetween. Has been. The upper case piece 20 is fixed to the lower case piece 10 by a caulking fastening portion 3 using caulking pins 4 in a state of being fitted to the lower case piece 10 with the control board 50 interposed therebetween.

A caulking fastening portion 3 using a caulking pin 4 is disposed at an appropriate position along the edge of the substrate protection case 1, and the case pieces 10 and 20 are locked in a closed state by driving the caulking pin 4 into the fastening hole 3a. The By removing the caulking pin driven into the fastening hole 3a, the case pieces 10 and 20 can be opened / closed and detached.
The pedestal (not shown) is a connecting means for attaching the substrate protection case 1 to the back of the gaming machine, and the hook portion 10a provided on the lower case piece 10 is engaged with the shaft portion 60 provided on the pedestal. As a result, the substrate protection case 1 rotates in the vertical direction about the shaft portion 60. That is, since the lower case piece 10 of the board protection case 1 is held by this pedestal, the board protection case 1 rotates in the vertical direction around the shaft portion 60 on the gaming machine side.
The board protective case 1 containing the control board 50 is assembled with the lower case piece 10 attached to the back of a gaming board such as a pachinko gaming machine via a pedestal, so the upper case piece from the back side of the gaming board. Through 20, the electronic components mounted on the internal control board surface can be viewed. Further, by rotating the substrate protection case 1 upward about the shaft portion 60, the inside of the substrate protection case can be confirmed from the bottom surface of the transparent lower case piece 10.

A sealing seal 30 is used as means for sealing the substrate protective case 1 having the above-described configuration. The seal seal 30 may be a simple sheet-like adhesive seal, but in this example, a seal seal incorporating an RFID will be described as an example.
As shown in FIG. 1, the seal seal 30 includes an adhesive sheet 31 made of a material that is easily broken such as paper having an adhesive layer on one surface, and an RFID (for example, an IC tag or the like) fixed to one surface of the adhesive sheet 31. Non-contact type radio wave identification means) 35. The RFID 35 includes a chip 36 including a power generation circuit, a modulation / demodulation circuit, a storage circuit, and a control circuit, and two conductor patterns (antennas) 37 extending from the chip 36 in opposite directions. In the sealing seal 30 of this example, a chip 36 is disposed at a substantially central portion of a rectangular adhesive sheet 31 and each conductor pattern 37 is drawn from the chip 36 in a substantially diagonal direction.
When a reading electromagnetic wave is irradiated toward the RFID 35 from a reading device (not shown), the conductor pattern 37 as an antenna portion receives the electromagnetic wave and supplies the electromagnetic wave to the chip 36. With this electromagnetic wave, the power generation circuit in the chip 36 generates an electromotive force due to the electromagnetic induction effect, and the identification information stored in the storage circuit is read by the control circuit operated by this electromotive force and transmitted from the antenna unit to the reading device. Thus, the identification information is read.

The linear conductor pattern 37 constituting the RFID extends in a substantially diagonal direction of the adhesive sheet 31, and a sealing seal 30 is adhered so that the conductor pattern 37 is broken when the upper case piece and the control board are separated from each other. Thus, when the board protective case is illegally opened and the upper case piece and the control board are separated, a part of the conductor pattern is disconnected, and the stored information cannot be read out.
As shown in FIG. 4, the adhesive sheet 31 constituting the seal seal 30 according to this embodiment includes a sheet base material 40 made of a material that is easily broken, such as paper, and adhesive layers 41 and 42 formed on both surfaces thereof. It is composed of In short, the seal seal 30 according to this example is a double-sided adhesive seal.

As shown in FIGS. 5A, 5B, and 5C, the substrate protective case 1 has a sealing seal 30 between the protruding pieces (sealing seal holding pieces) 11 and 21 provided on the two case pieces 10 and 20, respectively. Are supported in an adhesive state. The sealing seal holding piece does not need to be a protruding piece protruding from each case piece, and may be any sealing seal bonding surface provided to face each case piece. This applies to all the following embodiments.
In the present embodiment, projecting pieces 11 and 21 made of a transparent material having substantially the same outer shape are provided at the same position on the periphery of the two case pieces 10 and 20, respectively, and sealed between the inner side surfaces of both case pieces. The front and back sides of the seal are bonded together. In particular, in this example, the inner surface of the protruding piece 11 on the lower case side is a recess 11a, and the protruding piece 21 on the upper case side is a plate shape that fits into the recess 11a. Is prevented from being displaced. On the other hand, since the seal seal 30 is a double-sided seal having the adhesive layers 40 and 41 on both sides, after bonding one surface of the seal seal 30 in the recess 11a, the inner surface of the projecting piece 21 is made to contact the other surface. By contacting, both projecting pieces 11 and 21 are joined via a seal seal.

The bottom surface of the recess 11a of the projecting piece 11 and the inner surface of the projecting piece 21 are both flat, and the adhesive layers 40 and 41 are formed over both surfaces of the adhesive sheet 31 (sheet base material 40). Therefore, both the protruding pieces 11 and 21 are joined with sufficient adhesive force.
When the protruding pieces 11 and 21 are forcibly peeled off, the sealing seal 30 breaks and falls apart on the condition that the adhesive force of the adhesive layers 40 and 41 is sufficiently stronger than the shape retention force of the adhesive sheet 31. Small pieces (broken pieces) 30A and 30B broken on one side remain. For this reason, it becomes possible to visually confirm the state where the seal seal is broken from the outside of the transparent protruding piece.
That is, in order to open the board protection case 1 and expose the electronic components on the upper surface of the control board 50, it is necessary to open both the case pieces 10 and 20, but when both case pieces are opened, the gap between the protruding pieces 11 and 21 is required. The sealing seal 30 sandwiched and sealed between the two is broken into a plurality of small pieces 30A and 30B, and the individual small pieces are separated while being bonded to the inner surface of one of the protruding pieces 11 and 21. For this reason, a part of the RFID 35 (the chip part 36 and the conductor pattern 37) is broken (disconnected) together with the adhesive sheet 31, and the communication function of the RFID is lost. If the RFID communication function is lost, even if electromagnetic waves are supplied from the reader, the RFID will not operate, and the stored identification information cannot be read, so that the circuit board protective case has been opened illegally. be able to.

Even when a type without an RFID is used as the seal seal, the broken seal remains on the seal seal. Therefore, the appearance of the fracture when the two case pieces are sealed after the ROM is replaced is determined from the appearance. be able to.
Alternatively, a tamper-proof seal that is commercially available as a security seal may be used as the seal seal. This security seal has a configuration in which characters such as “opened” appear when the both sides are adhered to the inner side surfaces of both protruding pieces 11 and 21 when opened. For example, a security label manufactured by Japan Management Label Co., Ltd. or Sanwa Supply Co., Ltd. can be exemplified.
In addition, one end in the longitudinal direction of the substrate protection case is fastened by the caulking fastening portion 3, while the other end in the longitudinal direction of the substrate protection case is fastened and joined by using the seal seal 30. It becomes possible.

Next, in the said embodiment, the inner surface (adhesion surface with a sealing seal) of both protrusion pieces (sealing seal holding piece) 11 and 21 is a flat surface, and the contact bonding layer is formed in the whole both surfaces of a sealing seal. In the case of such a configuration, when the adhesive force between any one of the adhesive layers and the protruding piece is lower than the adhesive force between the other adhesive layer and the protruding piece for some reason, When both projecting pieces are peeled off, the entire seal seal remains on the side of the adhesive layer having the stronger adhesive force, and may not break. If the seal seal is not broken and remains in its original shape, it is adhered and peeled off on one side of the protruding piece. When the fraudster re-closes both case pieces after replacing the ROM, both transparent protruding pieces It becomes difficult to determine the evidence of fraud from the state of the seals placed between them.
FIG. 6 and FIG. 7 are cross-sectional views showing examples of configurations in which the shapes of the inner side surfaces (adhesion surfaces) of both protruding pieces (sealing seal holding pieces) are devised in order to eliminate such problems.
First, FIGS. 6A and 6B are cross-sectional views showing a sealing structure according to a first modification, where FIG. 6A shows an adhesive state and FIG. 6B shows a state after peeling. Further, FIGS. 6C and 6D are configuration explanatory views of the inner surface of each protruding piece.
In this sealing structure, the inner surfaces of the projecting pieces 11 and 21 are provided with convex surfaces 12 and 22 that locally adhere to the adhesive layers 41 and 42 of the seal seal 30 as a double-sided seal. The positions are shifted so that the adhesion portions with the adhesive layers 41 and 42 do not overlap.

Specifically, each of the convex surfaces 12 and 22 may have a striped configuration composed of a belt-like surface where the bonding positions of the double-sided seals do not overlap each other as shown in FIG. 6C, or as shown in FIG. It is good also as mesh shape.
Thus, with respect to the sealing seal 30 having the adhesive layers 41 and 42 on both sides, by providing the partial convex surfaces 12 and 22 on the inner surface of the protruding pieces 11 and 21, the adhesive layers 41 and 42 are bonded to each other. Divided into parts. Therefore, when the protruding pieces 11 and 21 are separated by opening both the case pieces, the adhesive layers 41 and 42 of the seal seal 30 are bonded to the convex surfaces 12 and 22 as shown in FIG. It becomes easy to be divided into the small pieces 30A and 30B. Therefore, even if the fraudster unsuccessfully opens both the case pieces and replaces the ROM, the administrator does the fraud from the appearance of the seal when the protruding pieces 11 and 21 are viewed from the outside. Can be recognized. When the seal seal is of a type using RFID, since the RFID is broken at a plurality of locations, it is difficult to restore the RFID function by rejoining both protruding pieces.

In this example, the adhesive layers 41 and 42 constituting the double-sided seal are partially arranged so as to be displaced so that the adhesive portions of the adhesive layers do not substantially overlap, and therefore, as shown in FIG. As described above, it is separated and divided into a plurality of small pieces 30A and 30B at the time of unauthorized opening, but it is not necessary to configure the positions of the convex surfaces 12 and 22 so as not to overlap each other in a strict sense, and some overlap may be allowed.
Alternatively, as shown in FIG. 7A, while the inner surface of one protruding piece 21 is a flat surface, the protruding surface 12 is provided on the inner surface of the other protruding piece 11, thereby separating the protruding pieces. At this time, as shown in (b), the sealing seal may be divided into a plurality of small pieces 30A and 30B.

Next, FIGS. 8A and 8B are explanatory views of a modified example of the present invention. The adhesive layers 41 and 42 constituting the sealing seal 30 as a double-sided seal are substantially the same as the adhesive sites of the adhesive layers. The positions are partially shifted so as not to overlap. That is, each adhesive layer 41, 42 is composed of a plurality of adhesive layer portions 41a, 42a arranged discontinuously. The non-adhesive surface of the sheet base material 40 is exposed between the adhesive layer portions 41a and 41a and between the adhesive layer portions 42a and 42a.
For this reason, even if the inner side surfaces of both protruding pieces (sealing seal holding pieces) 11 and 21 are flat surfaces, the adhesive layers 41 and 42 on the seal seal side are composed of intermittent adhesive layer portions 41a and 42a. Therefore, when the projecting pieces are separated from each other, the sealing seal is divided into portions corresponding to the adhesive layer portions 41a and 42a as shown in FIG. 8B.
The adhesive layer portions 41a and 42a may have a striped configuration composed of a belt-like surface where the bonding positions with the protruding pieces 11 and 21 do not overlap each other, or may have a mesh shape (FIGS. 6C and 6D). See).

In each of the above embodiments, an example in which the sealing seal is a double-sided seal is shown. However, as shown in FIG. 9, for example, as the sealing seal 30, an adhesive formed on one surface of the sheet base material 40. A single-sided seal composed of the layer 45 may be used, and this seal seal may be arranged between the protruding pieces in a state where the other side without the adhesive layer 45 is inside and at least one valley-folded state. If comprised in this way, the sealing seal as a single-sided seal can be utilized similarly to the double-sided seal in each said embodiment. In this case, it goes without saying that the separation of the seal seal is facilitated when the protruding pieces 11 and 21 are separated from each other.
It goes without saying that the sealing seal according to FIG. 9 can be applied to the protruding piece (sealing seal holding piece) according to any of the embodiments of FIGS. 5, 6, and 7. Similarly, the configuration of the adhesive layer portions 41a and 42a according to the embodiment of FIG. 8 may be applied.

In addition, when using a seal provided with RFID as the seal seal, the arrangement of the convex surface in the embodiment of FIGS. 5 to 7, or the arrangement of the adhesive layer portion of FIG. Alternatively, when the seal seal is divided along each adhesive layer portion, the RFID is intensively broken.
Alternatively, if perforations, cutting lines, etc. are formed in advance on the seal sticker, the seal sticker will surely break along these perforations, etc. Repairing the sealed seal becomes even more difficult.
As described above, according to the present invention, since the sealing seal is enclosed in the substrate protection case so as not to be exposed to the outside, the sealing seal cannot be peeled off or cut by an external operation. On the other hand, when the transparent protective board case is forcibly opened, the sealing seal placed inside is surely broken, deformed, or discolored (colored). Since it remains, it is possible to detect the existence of fraud. Further, since the broken portion of the seal seal is inside the case (between both protruding pieces), it becomes difficult for an unauthorized person to repair and reassemble the broken portion of the seal seal.

In addition, since the sealing seal is sandwiched between the sealing seal holding pieces provided on the two case pieces and bonded, and the substrate protection case is sealed so that the sealing seal cannot be accessed from the outside, the board protection case is used. It is possible to improve the productivity by facilitating and increasing the efficiency of the seal seal bonding operation during assembly.
When a sealed seal incorporating RFID is used, the RFID contained in the sealed seal breaks or breaks due to unauthorized opening of the sealed substrate protective case, so even if you try to repair the sealed seal, RFID communication Functional recovery can be made difficult.
The board protection case according to the present invention can be used as a means for accommodating a control board provided in a gaming machine such as a pachinko gaming machine or a slot machine.

  DESCRIPTION OF SYMBOLS 1 ... Board protection case, 3 ... Crimp fastening part, 3a ... Fastening hole, 4 ... Crimp pin, 10 ... Lower case piece, 10a ... Hook part, 11 ... Projection piece (sealing seal holding piece), 11a ... Recess, 12, 22 ... Convex surface, 20 ... Upper case piece, 21 ... Projection piece (sealing seal holding piece), 30 ... Sealing seal, 30A, 30B ... Small piece, 31 ... Adhesive sheet, 35 ... RFID, 36 ... Chip, 36 ... Chip part, 37 ... Conductor pattern, 40 ... Sheet base material, 40, 41 ... Adhesive layer, 41a ... Adhesive layer portion, 45 ... Adhesive layer, 50 ... Control board, 60 ... Shaft

Claims (11)

  It is arranged between a board protection case having two case pieces for accommodating the control board and a seal seal holding piece provided on each of the two case pieces, and each seal seal holding is held on the surface facing each seal seal holding piece. A sealing structure for a substrate protection case, comprising: a sealing seal adhered to the inner surface of the piece.   2. The sealing structure for a substrate protection case according to claim 1, wherein the sealing seal is a double-sided seal having a sheet base material and adhesive layers respectively formed on both sides of the sheet base material.   The sealing structure for a substrate protection case according to claim 2, wherein each adhesive layer constituting the double-sided seal is formed over substantially the entire surface of each sheet base material.   The inner surface of each sealing seal holding piece has a convex surface that locally adheres to each adhesive layer of the double-sided seal, and each convex surface provided on each sealing seal holding piece does not overlap the adhesive site with each adhesive layer The sealing structure for a substrate protection case according to claim 2 or 3, wherein the sealing structure is formed by shifting the position as described above.   4. The substrate protection according to claim 2, wherein each of the adhesive layers constituting the double-sided seal is partially arranged so as to be shifted in position so that the adhesive sites of the adhesive layers do not substantially overlap. 5. Case sealing structure.   5. The convex surface according to claim 4, wherein the convex surfaces are alternately arranged in a striped shape, a scattered dot shape, or a mesh shape so that the adhesion portions with the respective adhesive layers do not substantially overlap each other. Sealing structure for board protection case.   6. The adhesive layer according to claim 5, wherein the adhesive layers are alternately arranged in a striped shape or a mesh shape so that the adhesive portions with the seal seal holding pieces do not substantially overlap each other. Sealing structure for board protection case.   The sealing seal includes a sheet base material and an adhesive layer formed on one surface of the sheet base material, and the sealing seal is folded at least at one place with the other surface side having no adhesive layer inside. 2. The sealing structure for a substrate protection case according to claim 1, wherein the sealing structure is disposed between the sealing seal holding pieces.   9. The seal according to claim 1, wherein the sealing seal includes an adhesive sheet, an IC chip fixed to the surface of the adhesive sheet, and an RFID including a conductor pattern extending from the IC chip. The sealing structure of the substrate protection case as described in any one of Claims.   The RFID is ruptured when the sealing seals are divided along the convex surfaces or the adhesive layers by separating the sealing seal holding pieces. 9. A sealing structure for a substrate protection case according to 9.   A gaming machine comprising the sealing structure for a substrate protection case according to any one of claims 1 to 10.

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