JP3574053B2 - Game machine fraud prevention structure - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gaming machine fraud prevention structure for preventing fraud on electronic components arranged on the back side of a gaming board of a gaming machine.
[0002]
[Prior art]
Conventionally, in a gaming machine such as a pachinko machine, a special game value can be obtained by electronic control.
The back of the center role and the back of the attacker protrude from the back of the game board of the pachinko machine, and the back of the game board located away from the center role has a plurality of electronic components for electronically controlling the game content. Game control board and relay board. A large number of wires are provided between the game control board and the relay board, between the game control board and the center role, and between the game control board and the attacker.
[0003]
By the way, Japanese Patent Application Laid-Open No. 2000-51493 discloses that, by housing the above-mentioned game control board in a board case, the electronic components of the game control board are protected from contact with the outside, and at the same time, an illegal IC chip such as a ROM. There is disclosed a technique for preventing the attachment of the horn.
The board case according to this technique includes a main body base and a main body cover, and the game control board is supported by the main body base and is covered and protected by the main body cover. Further, the main body cover has a coating release position for releasing the coating of the circuit board with respect to the main body base, and a mounting position for protecting the circuit board, and is fixed to the main body base by the fixing means at the mounting position of the main body cover. It has become. The fixing means is partially or entirely damaged when the fixing is attempted to be released improperly, so that traces can be left.
[0004]
[Problems to be solved by the invention]
However, the technique disclosed in Japanese Patent Application Laid-Open No. 2000-51493 only covers the control circuit board only with the board case, so that other components other than the control circuit board, the relay board, the center role item, and the attacker are illegal. There is a possibility that an IC chip such as a ROM, a board on which the IC chip is mounted, and unauthorized components such as wiring may be attached.
[0005]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a structure for preventing unauthorized use of a gaming machine that can reliably prevent unauthorized use of electronic components disposed on the back surface of a game board.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, a fraud prevention structure for a gaming machine according to the first aspect of the present invention arranges an accessory on the front surface and electronically controls the back of the accessory and the game content for the accessory on the back surface. In a gaming machine provided with a game board on which a circuit board and the like are arranged, a rear cover that covers the whole area of electronic components such as the back of the accessory and the circuit board is arranged on the back of the game board, and the rear cover is fixed. A front frame that is removably fixed to the rear surface by the portion and is hinged to the outer frame so as to be openable and closable, a frame-shaped frame, and a glass frame that is hinged to the frame-shaped frame so as to be openable and closable, A rear plate fixed to the back surface of the frame-shaped frame and removably attaching the game board to an inner peripheral surface of the frame-shaped frame, and covering the fixed portion on the rear plate from the back surface side A coating was provided.
[0008]
According to a second aspect of the present invention, in the structure for preventing unauthorized access of a gaming machine according to the first aspect, the rear cover is formed of a transparent member.
According to a third aspect of the present invention, in the game machine fraud prevention structure according to the first or second aspect, a plurality of fixing positions of the fixing portion are provided, and each time the rear cover releases the covering of the electronic component, The fixing part by the fixing part was cut and re-fixed sequentially at a new fixing part.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is a perspective view showing a state in which a game board 4 of a pachinko machine 2 according to the present invention is removed, and the pachinko machine 2 includes an outer frame 6 attached to an island of a shop, and the outer frame 6. A front frame 8 is hinged so as to be freely opened and closed, an upper plate set 10 provided with an upper plate and the like, and a lower plate set 12 provided with a lower plate and an operation handle.
[0011]
The front frame 8 has a veneer frame 14 hinged to the outer frame 6, a synthetic resin decorative frame member 16 fixed to the front surface of the frame 14, and a hinged opening and closing hinged to the frame 14. A glass frame 18 and a rear plate 20 fixed to the back surface of the frame 14 and capable of detachably attaching the game board 4 to the inside of the glass frame 18 with the inner peripheral surface of the frame 14 are provided. The rear plate 20 is formed by forming a metal plate into a shallow housing shape, and a relatively large window 22 is opened at a substantially central portion.
[0012]
Here, on both sides of the rear plate 20, a concave portion 24 is formed by bending a metal plate so as to be recessed to the rear side, and the concave portion 24 is provided with a rear cover 60 on the back surface of the game board 4 described later. In this case, the first cylindrical unit 62 is covered. In addition, the concave portion 24 corresponds to the covering portion of the present invention.
FIG. 2 is a perspective view showing the back side of the front frame 8 from which the gaming board 4 has been removed. The upper tank 26 for storing the ball from above, the lower tank 28 for guiding the ball, the processing of the winning ball, etc. A frame control box 30 for controlling the payout of prize balls is arranged, and a prize ball payout device 32 communicating with the lower tank 28 and a prize ball processing device 34 communicating with the prize ball payout device 32 are arranged respectively. The prize ball payout device 32 and the prize ball processing device 34 are detachably hinged to the rear plate 20, and FIG.
[0013]
On the other hand, as shown in FIG. 1, the game board 4 has a cell sheet 38 on which a design drawing is drawn integrally connected to the entire front surface of a game board 36 formed of a substantially rectangular plywood. Note that the cell sheet 38 includes a plurality of light emitting display units composed of electroluminescent lamps scattered on the back surface of a front panel made of a transparent polyethylene terephthalate film having light transmittance (commonly referred to as a PET film). And a non-light-emitting display portion formed by normal paint printing, which is a portion other than the light-emitting display portion.
[0014]
A plurality of nails (not shown) are driven all over the front surface of the game board 4, and the pachinko balls hit through the rails 40 bounce against the nails or are guided along the guide path formed by the nails. , Is falling. In addition to the nails, a windmill 44 is attached to a symmetrical position on the front surface so as to change the direction of the pachinko ball in an unexpected direction. A plurality of winning openings 46 and passing winning openings 47 are provided in the gauge section 42 at a plurality of positions. When a pachinko ball enters the winning opening 46, a predetermined number of pachinko balls are supplied to the player. When the pachinko ball passes through, a right to start an indicator (not shown) is obtained. Further, a center role item 48 is arranged in the center of the front surface, and below the display portion of the center role item 48, a start winning prize port 50 for starting the center role unit 48, and below the start winning prize port 50. , A special winning opening 52 is arranged.
[0015]
As shown in FIG. 3, the back of the center role 48 protrudes from the back surface of the game board 4, and the relay board 54 is arranged at a position around the back of the center role 48. The relay board 56 is also arranged at a position above the space 48. Further, a circuit board 58 of the game control circuit is arranged at a position on the left side of the center role object 48. On this circuit board 58, a microcomputer which operates according to a preset program constituting the game control circuit, a center role object 48 according to a game situation by detecting a winning in the above-described starting winning opening 50 or winning opening 46. And a game input / output unit for outputting a signal for operating the prize ball discharging mechanism. Note that, on the circuit board 58, a light-emitting output unit that outputs a signal for blinking a plurality of light-emitting display units of the cell sheet 38 according to a game situation may be mounted. Further, for simplification of the drawing, wiring between the center role object 48 and the circuit board 58, wiring between the center role object 48 and the relay board 54, and the like are omitted in FIG.
[0016]
Here, the back surface of the game board 4 is covered with a rear cover 60.
As shown in FIG. 3, the rear cover 60 has a box shape having a horizontal dimension S, a vertical dimension W, and a height dimension H that can completely cover the center role object 48, the relay board 54, and the circuit board 58 of the game control circuit. It is a formed transparent member made of synthetic resin, provided with a cutout portion 60a at a part of the upper edge portion, and a space formed between the cutout portion 60a and the back surface of the game board 4 is formed by the relay board 56 and The wiring space allows the wiring to pass between the circuit boards 58. Although not shown, a prize passage is formed below the rear cover 60 to collect prize balls entering the prize port 46, the starting prize port 50, and the special prize port 52, and to lead the prize balls to the prize ball processing device 34.
[0017]
The first cylindrical unit 62 is integrally formed at both lateral edges of the rear cover 60, and the first cylindrical unit 62 is formed when the rear cover 60 covers the back surface of the game board 4. Second cylindrical units 64 are also arranged on both sides of the back surface of the opposing gaming board 4, and the rear cover 60 is played by engagement of the first cylindrical unit 62 and the second cylindrical unit 64. It is detachably fixed to the board 4. The first and second cylindrical units 62 and 64 correspond to the fixing portion of the present invention.
[0018]
The first cylindrical body unit 62 is constituted by two cylinders of three cylindrical members 66 integrally formed on upper portions of both lateral edges of the rear cover 60 and three cylindrical members 66 integrally formed on the lower portion. I have.
As shown in FIG. 4, the cylindrical members 66 are arranged side by side along the lateral edge of the rear cover 60, and are connected to the edge by main connecting pieces 66a, respectively. 66 are connected by a sub-connection piece 66b.
[0019]
As shown in FIG. 5, a screw 66 c having a groove on the head to be fitted with the screwdriver and having a plus groove is housed inside the cylindrical member 66. The screw 66c has a male screw 66d formed from the front end to an intermediate portion in the axial direction, and a ring-shaped groove 66e is formed at the base of the male screw.
In addition, the second cylinder unit 64 is provided on the surface facing the rear cover 60 of the block body 64a arranged so as to embed a cutout formed by cutting out the center of both sides of the back surface of the game board 4. A cylindrical body 68a provided with three circular holes 68 at the same interval as the arrangement pitch of the cylindrical members 66 of the unit 62 is formed, and a screw 66c is provided on the inner peripheral surface of the circular hole 68 as shown in FIG. They are screwed together. A holding plate 68c is fitted into the opening of the circular hole 68 via a thin metal engagement plate 68b. A ring-shaped protrusion is formed on the holding plate 68c, and the end face of the cylindrical member 66 fits tightly into the ring-shaped protrusion.
[0020]
Here, when the screw 66c housed in the cylindrical member 66 of the first cylindrical unit 62 is screwed while being pushed into the circular hole 68 of the second cylindrical unit 64, the screw 66c moves the engaging plate 68b in the traveling direction. The screw is engaged while being elastically deformed, and when the tightening is completed, the tip of the engagement plate 68b enters the ring-shaped groove 66e provided in the screw 66c. Therefore, even if the screw 66c is to be unscrewed, the screw 66c cannot be disengaged by the engagement between the engagement plate 68b and the ring-shaped groove 66e.
[0021]
When the rear cover 60 is fixed to the back surface of the game board 4, the rear cover 60 is fixed using one of the three cylindrical members 66 of the first cylindrical unit 62.
Here, the rear cover 60 is removed by cutting off the main connecting piece 66a and the sub-connecting piece 66b of the first cylindrical unit 62 with a nipper or the like, leaving the fixed portion in the second cylindrical unit 64. Is possible. In the present embodiment, for fixing the game board 4 and the rear cover 60, two sets of three cylindrical members 66 are provided, and two sets are used one by one. It can be repeated.
[0022]
The game board 4 in which the center role object 48, the relay board 54, and the circuit board 58 are covered by the rear cover 60 fixed to the back surface, the front frame 8 is supported by the inner peripheral surface of the frame 14 and the rear plate 20. Assembled inside.
At this time, as shown in FIG. 6, the concave portions 24 provided on both sides of the rear plate 20 cover the first cylindrical unit 62 fixing the game board 4 and the rear cover 60 from outside.
[0023]
Next, the operation of the present embodiment for preventing unauthorized modification will be described.
The center role item 48 arranged on the game board 4 is controlled by a plurality of electronic components. The electronic components include a CPU, a ROM, an IC chip of a RAM, and the like, all of which are mounted on a circuit board 58 of a game control circuit arranged on the back surface of the game board 4.
[0024]
In the RAM on the circuit board 58 of this game control circuit, a plurality of special symbol combinations are stored in advance, and the CPU compares the actually displayed symbol combination with the stored symbol combination. At the same time, the result of the comparison (match or mismatch) is determined. Here, when the CPU determines that the comparison results match, a so-called winning state is established, the special winning opening 52 is opened for a predetermined time, and a large amount of pachinko balls are supplied to the player.
[0025]
The probability that the result of comparison by the CPU matches and a so-called hit state, that is, the game content in the pachinko gaming machine 2 is controlled by the ROM, so that the game content can be changed by illegally replacing the ROM. It is.
Further, even if an unauthorized IC chip such as an unauthorized ROM is connected in the middle of the wiring between the relay board 54 and the circuit board 58 or in the middle of the wiring between the center role object 48 and the circuit board 58, It is possible to change the game content.
[0026]
However, in the present embodiment, the rear cover 60 disposed on the back of the game board 4 covers the entirety of the center role object 48, the relay board 54, the circuit board 58, and the wiring connecting these electronic components, and the like. Even if the front frame 8 is opened, it is not possible to replace the above component with an unauthorized component or to connect the unauthorized component to wiring or the like.
Further, since the rear cover 60 is transparent, it is possible to easily inspect the appearance of the electronic components attached to the circuit board 58, other components, wiring, and the like while the rear cover 60 is fixed to the game board 4. it can.
[0027]
In addition, even if an attempt is made to cut the connecting portion of the first cylinder unit 62 that fixes the game board 4 and the rear cover 60 in order to perform a fraud, the first cylinder unit 62 is attached to both sides of the rear plate 20. Since it is covered by the provided recess 24, it cannot be broken. If only the game board 4 is removed from the front frame 8, the first tubular unit 62 is exposed and the connection portion can be cut off. Since a large amount of time is required after the first cylinder unit 62 is cut and then replaced with a fraudulent part or the fraudulent part is connected, it is impossible to perform fraud.
[0028]
Next, a procedure for attaching and detaching the rear cover 60 to and from the game board 4 will be described. At the time of shipment from the factory, the screws 66c housed in the lowermost cylindrical member 66 of the three cylindrical members 66 of the first cylindrical unit 62 in three units are replaced with the corresponding game board 4 It is assumed that the rear rear cover 60 is fixed to the game board 4 by screwing it into the circular hole 68 of the second cylindrical body unit using a screw driver.
[0029]
Normally, the circuit board 58 of the game control circuit disposed on the back surface of the game board 4 needs to be inspected for the ROM and the back surface (pattern) at predetermined intervals.
In order to separate the rear cover 60 from the game board 4, first, only the game board 4 is removed from the front frame 8, and then the cylindrical member 66 of the first cylindrical unit 62 used for fixing the rear cover 60 (three by three) The main connecting piece 66a and the sub-connecting piece 66b connected to the lowermost cylindrical member 66 of the two cylindrical members 66 are cut off. Thereby, the fixed cylindrical member 66 is separated from the rear cover 60, and the rear cover 60 can be separated from the game board 4.
[0030]
When the rear cover 60 is fixed to the game board 4 again after the inspection and accommodation, the screws 66c accommodated in the second cylindrical member 66 from the bottom among the two cylindrical members 66 each corresponding to three are changed to correspond to this. The screw is screwed into the circular hole 68 of the second cylinder unit on the game board 4 side to be engaged with and fixed in the circular hole 68 of the second cylinder unit on the game board 4 side. Thereafter, when the rear cover 60 is separated from the game board 4 for the inspection again, the main connecting piece 66a and the sub-connecting piece 66b connected to the second cylindrical member 66 are cut off. By repeating this, opening twice and fixing three times are possible.
[0031]
In this embodiment, the second tubular unit 64 is disposed on both sides of the back surface of the game board 4, and the first tubular unit 62 is disposed on both lateral edges of the rear cover 60. However, the arrangement positions of the first and second cylindrical units 62 and 64 are not limited to this.
In the present embodiment, the first and second cylindrical units 62 and 64 are arranged on both sides of the game board 4 and the rear cover 60, respectively, but the first and second cylindrical units are arranged on one of the two sides. The structure in which the game board 4 and the rear cover 60 are connected to each other by a hinge or the like may be used.
[0032]
In the present embodiment, the concave portions 24 provided on both sides of the rear plate 20 cover the first cylindrical unit 62 fixing the game board 4 and the rear cover 60 from the outside. The component is not limited to the recess 24 as long as it is an integrated component that covers the first cylindrical unit 62 from the outside.
The structure in which the screw 66c screwed into the first and second cylindrical body units 62 and 64 does not return is not limited to the fitting structure between the ring-shaped groove 66e of the screw 66c and the engagement plate 68b. Needless to say, a structure such that the engagement cannot be released unless broken, such as a rivet or an adhesive.
[0033]
Further, when the rear cover 60 is separated from the game board 4, it is performed by cutting the main connecting piece 66a and the sub-connecting piece 66b formed integrally with the cylindrical member 66, but the present invention is not limited to this. For example, there is no problem in a structure in which a connecting piece is provided on the second cylindrical unit 64 and cut off.
[0034]
As described above, according to the structure for preventing unauthorized use of a gaming machine according to the first aspect, the rear cover disposed on the back surface of the game board covers the whole area of the electronic components such as the back of the accessory and the circuit board. Since the fixing portion is detachably fixed to the back surface of the game board, it is possible to prevent the replacement of the unauthorized component and the connection of the unauthorized component to the wiring or the like.
In addition, since the fixing portion is covered from the back side by the covering portion of the rear plate constituting the front frame, it is possible to surely prevent fraud.
[0036]
According to the second aspect of the present invention, since the rear cover is transparent, electronic components such as the back of the accessory and the circuit board, and electronic components attached to the wiring, etc., can be used to prevent the rear cover from being attached to the game board. The appearance can be easily inspected while fixed.
Further , according to the third aspect of the present invention, it is possible to reliably prevent fraudulent acts and to securely fix the rear cover that is separated at the time of inspection a plurality of times.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a front side of a pachinko machine from which only a game board according to the present invention has been removed.
FIG. 2 is a perspective view showing the back side of the pachinko machine from which only the game board has been removed.
FIG. 3 is a perspective view showing a back surface of the game board and a rear cover fixed to the back surface.
FIG. 4 is a view showing a first cylindrical unit constituting a fixing portion provided integrally with the rear cover.
FIG. 5 is a diagram showing a first cylindrical unit provided on a rear cover and a second cylindrical unit provided on a game board;
FIG. 6 is a view showing a state in which a covering portion provided on the gaming machine main body side covers the fixing portion from the back surface side.
[Explanation of symbols]
2 gaming machine 4 gaming board 8 front frame 14 frame (frame-shaped frame)
18 Glass frame 20 Rear plate 24 Depression (covering part)
48 Center part (accessory)
58 Circuit board 60 Rear cover 62 First cylindrical unit 64 Second cylindrical unit 66 Cylindrical member 66a Main connecting piece 66b Secondary connecting piece 66c Screw 68 Round hole

Claims (3)

In a gaming machine comprising a game board in which a front role is arranged on the front side and a back portion of the role on the back side, and a circuit board for electronically controlling the game content with respect to the role,
On the back surface of the game board, a rear cover that covers the whole area of the electronic components such as the back of the accessory and the circuit board is arranged, and the rear cover is detachably fixed to the back surface by a fixing portion, and is attached to an outer frame. A front frame hinged to be openable and closable, a frame-shaped frame, a glass frame hinged to the frame-shaped frame to be openable and closable, and a rear surface of the frame-shaped frame. And a rear plate on which the game board is detachably assembled with a peripheral surface, and a cover portion is provided on the rear plate to cover the fixed portion from the back side, thereby preventing unauthorized access to the game machine. . 2. The structure according to claim 1 , wherein the rear cover is formed of a transparent member . A plurality of fixing positions of the fixing part are provided, and each time the rear cover releases the covering of the electronic component, the fixing part by the fixing part is cut and sequentially fixed again at a new fixing part. The structure for preventing fraud of a gaming machine according to claim 1 .

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