JPH1057574A - Board housing box for game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a circuit board housing box for a game machine in which a circuit board can be visually recognized from outside, in which a sufficient electromagnetic shield effect is provided, and in which breakage of the circuit board by external force is prevented. SOLUTION: A circuit board housing box 50 is composed of a box body 51 as an installation member on which a game control circuit board 100 is installed, a cover body 70 as a cover member of transparency installed on the box body 51 to cover the game control circuit board 100, where the cover body 70 has such an integrally provided transparent conductive layer 97 that can be seen through to see the inside. A sufficient electromagnetic shield effect is provided by the transparent conductive layer 97, and breakage of the game control circuit board 100 inside can be prevented by the cover body 70 composed of transparent synthetic resin material or the like even when external force is applied.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a gaming machine, for example,
The present invention relates to a board storage box for storing a circuit board provided in a pachinko game machine or a slot machine.

[0002]

2. Description of the Related Art Conventionally, pachinko game machines and slot machines are provided with many circuit boards. In particular, on a game control circuit board for controlling a game operation, a large number of electronic elements such as an MPU, a ROM, and a RAM constituting a microcomputer are mounted. For this reason, the game control circuit board is housed in a metal board storage box in order to prevent the microcomputer from malfunctioning under the influence of electromagnetic waves or static electricity from the outside. However, by exchanging the ROM in which the program for controlling the game operation is stored, it is possible to realize different game contents in many cases. Therefore, the ROM exchange is not permitted. To make it easier to find out
One in which a substrate storage box is made of a transparent synthetic resin has been proposed. However, when the substrate storage box is made of a transparent synthetic resin, there is a disadvantage that the electromagnetic shielding effect is weak and electronic components and the like are adversely affected by noise.

[0003]

In order to solve the above-mentioned drawbacks, for example, as shown in Japanese Utility Model Application Laid-Open No. 6-74182, a circuit board is covered with a metal mesh and electromagnetically shielded. However, when the circuit board is covered only with the metal mesh as described above, there is a disadvantage that the metal mesh is easily deformed by an external force and the internal circuit board is damaged. The present invention has been made in view of the above circumstances,
It is an object of the present invention to provide a board storage box for a gaming machine that allows a circuit board to be visually recognized from the outside, has a sufficient electromagnetic shielding effect, and can prevent damage to the circuit board due to external force. Is to do.

[0004]

Means adopted by the present invention to achieve the above object will be described with reference to the drawings. As shown in FIG. 4A, a pachinko gaming machine as a gaming machine is provided. In the board storage box 50 for storing the game control circuit board 100 as a circuit board provided in the box, the board storage box 50 includes a box body 51 as an attachment member to which the game control circuit board 100 is mounted, and the box body 51.
And a cover 70 as a transmissive cover member attached so as to cover the game control circuit board 100 with respect to the game control circuit board 100.
The transparent conductive layer 97 is provided integrally. With this configuration, the transparent conductive layer 9
It is possible to see the inside through 7 and
The transparent conductive layer 97 provides a sufficient electromagnetic shielding effect, and the internal game control circuit board 100 is not damaged by the cover 70 made of a transparent synthetic resin material or the like even when an external force acts.

[0005] As shown in FIGS. 8 and 9, the game control circuit board 100 includes an electronic component (for example, a ROM 105) on which an integrated circuit is formed. By providing a ground structure in which the ground line conductive portion 107a of the game control circuit board 100 and the transparent conductive layer 97 are connected to the mounting area side with screws 74, the flow of noise current to electronic components that are likely to malfunction can be suppressed. Can be.

Further, as shown in FIG. 12B, an antireflection layer 14 is formed on the outer surface of a resin material 140 as a cover member.
By forming 2, there is an advantage that the reflection of light from the outside is suppressed and the inside can be easily recognized.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. First, a configuration of a pachinko gaming machine 1 as an example of a gaming machine according to the embodiment will be described with reference to FIGS. FIG. 16 is a front view of the pachinko gaming machine 1, and FIG. 17 is a rear view of the pachinko gaming machine 1. In FIG. 16, the pachinko gaming machine 1
The opening of the front frame 2 formed in a frame shape is provided with a door holding frame 3.
A glass door frame 4 and a front door plate 5 are provided around the door holding frame 3.
Are openably and closably provided about one side (left side) as an axis. A game board 11 is arranged behind the glass door frame 4,
On the front surface of the front door plate 5, a hit ball supply tray 6 is attached. The hit ball supply tray 6 stores paid-out prize balls and supplies the prize balls to the firing position one by one as hit balls, and a speaker 7 for generating a sound effect related to the game in an internal space on an upstream side thereof. Is built-in. Below the front frame 2, there are provided an operation handle 9 operated when firing a hit ball, and a surplus ball tray 8 for storing surplus prize balls that cannot be stored in the hit ball supply tray 6. ing. Also,
A game effect lamp device 10 for notifying that a specific game state has been established is provided on an upper front surface of the front frame 2.

On the surface of the game board 11, a guide rail 12 for guiding shot balls shot is planted in a substantially circular shape, and a region defined by the guide rail 12 forms a game area 13. Make up. A variable display device 14 having a plurality (three) of rotating drums 15a to 15c is disposed substantially at the upper center of the game area 13. The rotating drums 15a to 15c of the variable display device 14 are driven to rotate by independent drum motors (not shown), and a built-in drum sensor (not shown) for detecting a symbol stop position thereof, and symbols to be further displayed. There is a built-in drum lamp (not shown) for irradiating decoration.

Further, the variable display device 14 is provided with a decoration LED 16 at an upper part thereof, and a start storage LED 17 at a lower part of the decoration LED 16. Decoration LED16
Is composed of 10 LEDs with reference numerals from 0 to 9, and the LED corresponding to a value extracted from a predetermined random number is turned on when a specific game state described later is entered. . Any one of the decoration LEDs 16 is randomly lit and displayed in association with the occurrence of the specific game state, and is not directly related to the content of the game, but is provided with a predetermined service (for example, in the specific game state). This service can be used to provide a service that permits a player to continuously play a game using a large number of obtained prize balls. For example,
A predetermined service may be provided when the decoration LED 16 of “7” is turned off. Also, the starting memory L
The ED 17 displays the stored hit balls among the winning prize holes 19 to be described later. Further, rotating drums 15a to 15c are provided on both sides of the variable display device 14.
A line display LED 18 for displaying five hit lines constituted by three vertical and horizontal symbols is provided. As shown, the hit line in the present embodiment includes an upper horizontal hit line 1 and a lower right diagonal hit line 2.
There is a hit line 3 at the middle level, a hit line 4 at the upper right diagonal, and a hit line 5 at the lower level. A predetermined symbol (sometimes referred to as a big hit symbol) is arranged on one of the hit lines. At that time, it becomes a big hit and causes a specific game state.

The variable display device 14 configured as described above.
A winning opening 19 for allowing rotation of the rotating drums 15a to 15c is provided below the opening. The winning ball that has won the start winning port 19 is guided to the back of the game board 11 and detected by the starting port switch 20. The rotation of the variable display device 14 based on the winning in the start winning opening 19 is stored a predetermined number of times (for example, four times), and the fact is indicated by the start storage LED 17 provided in the variable display device 14. ing.

The winning area 2 is located below the variable display device 14.
2 is provided. The winning area 22 of the variable winning ball device 21 is closed by an opening / closing plate 23 that is pivotally supported on both lower ends and that can be opened and closed in a direction perpendicular to the game board 11 surface. This opening / closing plate 23
The opening and closing is controlled by the open / close plate solenoid 24. During opening, the ball hitting the surface of the game board 11 is received and guided to the winning area 22 to be a winning ball. The winning area 22
Is divided into three sections, a specific area 25 is formed in the center, and normal areas are formed on the left and right sides. A specific area switch 26 is provided in the specific area 25, and a 10 count switch 27a, 2 is also provided in the normal winning area.
7b is provided.

In the center of the rear wall of the winning area 22, a ball hits the specific area 25 and the specific area switch 2
V that informs that the continuation right has been established when 6 is turned on
A display LED (not shown) is provided, and an opening number indicator (not shown) for displaying the number of times the opening / closing plate 23 is opened in the specific game state is provided on one side thereof. Below the winning area 22, specific area switches 26 and 1 are located.
A number display LED 28a for displaying the number of hit balls detected by the 0 count switches 27a and 27b is provided.

Thus, the variable winning ball device 21 configured as described above operates as follows. That is, when the hit ball wins the starting winning opening 19 and the starting opening switch 20 is turned on, the rotating drums 15a to 15c of the variable display device 14 are turned on.
Starts rotating, and after a lapse of a predetermined time (for example, 5 seconds), the rotation drums 15a are sequentially stopped from the left rotation drum 15a, and the combination of symbols when all the rotation drums 15a to 15c are stopped becomes a combination of big hit symbols. Sometimes it becomes a specific game state. In this specific game state, the opening and closing plate 23 of the variable winning ball device 21 is set to be opened for a predetermined period (for example, until 20 seconds elapse or until ten winning balls are generated), and the opening is performed. While playing the game board 11
It is designed to catch hit balls falling on the surface of the ball. When the player wins the specific area 25 provided in the winning area 22, the above-described open state is repeated again, and the specific area 2
Each time a winning ball wins in No. 5, a continuation right is established and the open state can be repeated up to 16 times.

Further, on the surface of the game board 11, a windmill lamp 28b is provided on the upper left and right sides of the variable display device 14, and a winning opening (no symbol) is provided on a lower side.
In addition, the windmill lamp 28b is lit or blinked in the specific game state or at the time of winning a prize to notify the user of the fact that the game area 13 has the same function.
Side lamps 29 are provided on the left and right of the vehicle. At the lowermost part of the surface of the game board 11, there is provided an out port (not shown) through which a hit ball that has not won any of the above-mentioned winning areas is guided to the rear of the game board 11. A rail decoration lamp 30 is provided along the outer periphery of the guide rail 12.

On the other hand, in the back surface configuration of the pachinko gaming machine 1, as shown in FIG. 17, a mechanism plate 31 is provided to be openable and closable. At the center of the mechanism plate 31, a window opening 32 is provided.
The game board 11 corresponding to the window opening 32 is provided with a winning ball set cover body 33 on the back surface thereof. The rearward projection of the variable display device 14 penetrates the winning ball aggregate cover body 33, and a drum relay board 34 is provided on the rear surface of the rearward projection. This drum relay board 3
4, the wires from the drum motor, the drum lamp, the drum sensor and the like are connected via a connector, and the wires connected to a game control circuit board 100 as a circuit board to be described later are also connected via a connector. It has become so. In addition, on the back of the winning ball collecting cover body 33, electric devices (for example, a starting port switch 20, a solenoid 24, a specific area switch 26, and a 10 count switch 27a, 27) provided on the game board 11 other than the variable display device 14 are provided.
b, various displays and lamps) are connected via a connector, while a wiring from the game control circuit board 100 is also provided with a relay board 35 connected via the connector. In short, the drum relay board 34 is also the relay board 3
5 also relays the wiring between the game control circuit board 100 and the electric equipment provided on the game board 11.

The mechanism plate 31 includes a prize ball tank 36 for paying out a predetermined number of prize balls based on a prize ball generated as is well known, a prize ball payout device 37, a prize ball processing device 38, and the like. Various mechanisms are provided, and further, a board for storing a game control circuit board 100 for controlling a game operation of a game device such as the variable display device 14 or the variable winning ball device 21 provided on the game board 11 described above. The storage box 50 is also attached to the back of the mechanism plate 31.
The game control circuit board 100 housed in the board housing box 50 is connected to a terminal board 39 provided on one upper side of the mechanism board 31 and is supplied with power. The terminal board 39 not only supplies power to the game control circuit board 100, but also supplies power to an electric drive source provided in the pachinko gaming machine 1, for example, a hitting ball launching device 40, and the pachinko gaming machine Also, a terminal for relaying a signal line inside the device 1 or a signal line between the pachinko gaming machine 1 and the outside is provided.

A card unit 41 for lending game balls to the pachinko gaming machine 1 is provided on the mechanism plate 31 described above.
Are installed adjacent to each other, an interface board 42 for relaying wiring from the card unit 41 is provided, and a payout control circuit board 43 for driving and controlling the prize ball payout device 37 is also provided. Further, in response to a signal from the gaming control circuit board 100, the windmill lamp 28b and the side lamp 2
9, a decoration control circuit board 44 for performing a display operation of the rail decoration lamp 30 and the like and an operation of generating a sound effect of the speaker 7 are also provided.

The above-described drum relay board 34, relay board 3
5, terminal board 39, interface board 42,
The payout control circuit board 43 and the decoration control circuit board 44
Since each of them is configured by mounting various electronic components on a printed wiring board, these boards 34, 35, 39, and 4 are provided like a game control circuit board 100 described later.
A configuration in which a transparent conductive layer is included in a cover body covering 2, 43, 44 may be adopted. In particular, the payout control circuit board 43 and the decoration control circuit board 44 include electronic components that are easily affected by noise such as a CPU, a ROM, and a RAM.

Next, the structure of the substrate storage box 50 constituting a main part of the present embodiment will be described with reference to FIGS. FIG. 1 is a plan view of the substrate storage box 50 according to the embodiment, FIG. 2 is an exploded perspective view of the substrate storage box 50, and FIG. 3 illustrates a case where the covering state of the substrate storage box 50 is released. FIG.
FIG. 4 shows a substrate storage box 5 cut along the line AA in FIG.
FIG. 5 is an enlarged sectional view showing the relationship between the locking piece 85 and the engagement opening 86 when the locking piece 85 is constituted by one piece. FIG. 6 shows a locking piece 85 and an engagement opening 86 when two locking pieces 85 are formed.
FIG. 7 is an enlarged view of a circle A in FIG. 8, and FIG. 8 is a cross-sectional view of the substrate storage box 50 taken along the line AA in FIG. FIG. 9 shows FIG.
10 is a cross-sectional view showing the structure for attaching the sealing paper 81, and FIG. 11 is a plan view when the sealing paper 81 is peeled off.

Thus, the board storage box 50 is constructed by assembling a box body 51 for housing and supporting the game control circuit board 100 and a cover body 70 for closing the upper surface of the box body 51.
The board storage box 50 thus assembled can be detachably attached to a mounting table 110 fixed to the back surface of the mechanism plate 31. Hereinafter, each of the assembled components will be described.

First, the box body 51 is formed of a conductive synthetic resin (or metal) containing a rectangular parallelepiped carbon powder having an open upper surface, and dissipates heat generated inside substantially all over the side wall. Many heat radiation holes 52 are formed.
A relatively large rectangular opening 53 is formed on the bottom surface of the box body 51, and a longitudinal opening edge of the opening 53 is
L that engages with an engagement rail 111 of the mounting base 110, which will be described later.
A letter-shaped engaging piece 54 is formed in a hanging manner. The box 5
As shown in FIG. 4 (A), the bottom surface of 1 is formed at a position slightly higher than the lower end of the side wall in a raised state.
The hanging engagement piece 54 is located on the same plane as the side wall of the box body 51.

Further, a locking hole 60 is formed in the center of the front part of the bottom surface of the box body 51, and support positioning projections 55 are protruded on the left and right sides of one long side, and on the left and right sides of the other long side. A stop projection 56 is provided to protrude. When the board storage box 50 is mounted on the mounting table 110, the locking hole 60
The entirety of the substrate storage box 50 is supported and fixed to the rear surface of the mechanism plate 31 by engaging with the locking projection 114 formed at 0. In addition, the support positioning projection 55 sandwiches and supports both ends of one long side portion of the game control circuit board 100 with a pressing member 79 described later provided on the cover body 70,
The stop projection 56 is for fixing and supporting both ends of the other long side of the game control circuit board 100 with screws 74 described later. The support positioning projection 55 and the stop projection 56 will be described later in detail.

Engagement holes 57 are formed at two places on one side wall in the longitudinal direction and one place on both side walls in the short side direction of the box body 51. When the cover body 70 is covered with the box body 51, the engagement hole 57 engages with a locking hanging piece 78 formed on the back surface of the cover body 70. In the normal state, the engagement state with the locking hanging piece 78 can be released from the outside by operating from outside, but in this embodiment, the short side of the box body 51 is Sealing paper 81 is affixed to a flat surface formed by a sealing paper sticking projection 61 projecting outward at the center of the upper edge and a sealing paper sticking projection 80 described later of the cover body 70. Since a part of the sealing member 81 is welded by the laser technique, when the box body 51 and the cover body 70 are separated from each other even when the engagement state between the engaging hole 57 and the locking hanging piece 78 is released, the sealing paper 81 is formed. Seal mark 82 is left.

Further, the other side wall in the longitudinal direction of the box body 51 is formed as a wiring draw-out recess 58 having a small height.
A plurality of elliptical openings 59 are provided. Opening 59
4A, as shown in FIG. 4A, a transparent plate 62 described below.
However, it does not have a function as a heat radiating hole, but contributes to a reduction in raw materials forming the box body 51.

In order to close the opening 53 of the box 51, a transparent plate 62 is provided in contact with the bottom of the box 51 from the inside. For this reason, through holes 64 are formed in the four corners of the transparent plate 62, and spacing cylinder members 63, 65 having holes of the same diameter as the through holes 64 are provided on the upper surface. As shown in FIG. 4 (A), 65 is penetrated through the support positioning projection 55 and the stop projection 56 and is held at a predetermined position. The lower surface is in contact with the transparent plate 6
2 and the game control circuit board 100.
A transparent conductive layer 67 is formed on the upper surface of the transparent plate 62 (the surface facing the game control circuit board 100). Is formed of a conductive material made of metal.

Here, the transparent conductive layer will be briefly described. The transparent conductive layer is made of a metal such as gold, platinum, silver, tin, aluminum, nickel, palladium, antimony, or a metal oxide such as indium oxide or tin oxide. Vacuum deposition, sputtering, ion plating, C
It is formed on a surface of a resin material or the like as a layer having a thickness having conductivity and transparency by a method such as VD. The thickness of the transparent conductive layer is usually about 5 to 1000 nm,
The electric conductivity is suitably an electrical resistivity of 10,000Ω / □ or less, preferably 1000Ω / □ or less.

Thus, the bottom surface of the box body 51 is
By closing with the transparent plate 62 in which the 7 is formed, the back surface (solder surface) of the game control circuit board 100 can be seen through from the outside, and if the solder surface is illegally operated (for example,
In the case of unauthorized manipulation (such as connecting jumper wiring or mounting electronic components), it is immediately known. In this sense, it is sufficient that the size of the opening 53 closed by the transparent plate 62 is such that the entire area of the solder surface can be seen while tilting the substrate storage box 50. The pressing projection 6 is provided at the center of one side of the transparent plate 62 in the longitudinal direction.
6, the pressing projections 66 are used to support the pressure from above when connecting the wiring to the connector 106 of the game control circuit board 100 so that the game control circuit board 100 is not deformed. is there.

On the other hand, the cover 70 for closing the upper surface of the box 51 is formed integrally with a transparent conductive layer 97 formed on the inner surface of a transparent synthetic resin. The side part is a partition piece 71 bent downward. The position of the partition piece 71 is such that when the cover body 70 is mounted on the box body 51, the connector mounting area 102 of the game control circuit board 100 appears outside to form the connection opening 75 as shown in FIG. It is bent at the position. Thus, it is possible to connect an external wiring to the connector 106 facing the connection opening 75 in a state where the cover body 70 is assembled to the box body 51. A fixing piece 72 having a stop hole 73 is protrudingly provided near both ends of the partitioning piece 71, and when the cover body 70 is covered with the box body 51, the game control circuit board 100 is fixed while being clamped. The stop hole 73 of the piece 72 corresponds to the stop protrusion 56. This fastening structure will be described later in detail.

In the area of the surface of the cover body 70 other than the separation cover body part 83, which will be described later, a large number of heat radiation holes 76 for releasing the heat generated inside to the outside are formed (indicated by a two-dot chain line in FIG. In addition, a through-hole 96 is formed on one side of the through-hole 96 so that a probability setting key 108 to be described later faces. Further, the long side edge and the short side direction edge of the cover body 70 are provided with a locking portion 77 that engages with the upper edge of the side wall of the box body 51.
Are protruded two by two at appropriate intervals, and a locking hanging piece 78 hanging downward is formed in the cover body 70 between the engaging portions 77. A hook 78 a is formed at the tip of the locking hanging piece 78, and the hook 78 a
In the engaging hole 57.

A pressing member 79 is hung on the back surface of both sides of the one side of the cover 70, and a sealing paper sticking projection 80 is provided at the center of the short side of the cover 70. The sealing paper sticking projections 80 are engaged with the recesses of the sealing paper sticking projections 61 of the box body 51 so as to be flush with each other, and are sealed at the boundary between the sealing paper sticking projections 61 and 80. Paper 81 is attached. Thus, the sealing paper 81 is made of the sealing paper sticking protruding pieces 61 and 8.
After being attached to the sealing paper 81, the laser oscillator 130 almost covers the vicinity of the center of the sealing paper 81 as shown in FIG.
Irradiation of the sealing paper 81 at the irradiated portion
Is welded to the boundary between the sealing paper affixing projections 61 and 80. Therefore, when the sealing paper 81 is forcibly peeled off, as shown in FIG. Peeled off with a hole in the center. For this reason, it can be easily determined whether or not the sealing paper 81 has been illegally peeled off. In addition, the sealing mark 82 by the laser beam 131
Is formed at the boundary, and if this is further removed, a trace will inevitably remain, making it possible to find fraudulent acts extremely easily. In addition, it is also possible to draw a character or the like with the laser beam 131 as the sealing mark 82. The sealing paper 81 is not limited to paper, but may be made of synthetic resin or vinyl.

The structure of the cover 70 is substantially as described above, but when the cover 70 is covered with the box 51, the game control circuit board 100 is supported inside by the pressing member 79 and the fastening piece 72. Fixed. Before describing the detailed configuration for supporting and fixing, the structure of the game control circuit board 100 will be briefly described. The game control circuit board 100 is formed of a printed wiring board as is well known, and its upper surface is formed. The electronic component mounting surface including the ROM 105 is used as a mounting surface, most of the mounting surface is used as the electronic component mounting area 101, and a part of the rear surface is the connector 1.
06 is the connector mounting area 102 in which the connector is mounted. On the game control circuit board 100, locking holes 103 corresponding to the support positioning protrusions 55 are formed on the left and right sides of one long side, and stop holes 104 corresponding to the stop protrusions 56 are formed on the left and right sides of the other long side. Is formed. Further, the ground line conductive portions 107a and 107b (FIG.
Is printed. Further, the game control circuit board 100 includes a probability setting key 10 for setting the appearance probability of the big hit symbol of the variable display device 14 on the game board 11.
8 is provided, and a probability display LED 109 for displaying a set value is also mounted.

Next, the operation of the holding member 79 of the cover body 70 and the fastening piece 72 will be described below. In the box body 51 with the transparent plate 62 attached, the game control circuit board 10
The locking hole 103 on one long side of the “0” is inserted into the tip protrusion of the support positioning protrusion 55, and the stop hole 104 on the other long side is placed on the stop protrusion 56. In this state, the game control circuit board 100 is temporarily placed on the box 51. Then, the cover body 70 is mounted from above the box body 51. At this time, as shown in FIG. 4A, the distal end of the pressing member 79 contacts the upper surface of the game control circuit board 100, and the support positioning protrusion 55 penetrating through the locking hole 103.
Is engaged with a hole formed at the center of the pressing member 79, so that one long side of the game control circuit board 100 is pinched and stopped by the support positioning protrusion 55 and the pressing member 79. Become.

On the other hand, the stop hole 73 of the fastening piece 72 coincides with the stop hole 104 on the other long side of the game control circuit board 100,
In addition, since the stop hole 104 coincides with the stop protrusion 56 of the box body 51, the other long side of the game control circuit board 100 is stopped by fastening the screw 74 from above the fastening piece 72. The game control circuit board 100 is completely fixed in the board storage box 50 by being fixed while being sandwiched between the projection 56 and the fixing piece 72.

When the screw 74 is used for fixing, the transparent conductive layer 97 formed on the inner surface of the cover 70 and the ground line conductive portion 107a on the upper surface of the game control circuit board 100 as shown in FIG. Is electrically conductive,
In addition, the transparent conductive layer 67 formed on the upper surface of the transparent plate 62 and the ground line conductive portion 107b on the lower surface of the game control circuit board 100 conduct through the metal spacing cylinder member 65, and furthermore, the ground. Line conductive parts 107a, 1
Since 07b is fixed to the stopper projection 56 of the box body 51 formed of a carbon-containing conductive resin with a metal screw 74, it is picked up by the transparent conductive layers 97 and 67 and the ground line conductive portions 107a and 107b. All the noise currents are grounded via the box body 51 (and a mounting base 110 described later). The position having this ground structure is shown in FIG.
As shown in the figure, the ROM 105 of the game control circuit board 100
Away from the CPU (not shown in detail,
And an integrated circuit such as a RAM is formed and separated from the electronic components), so that the flow of noise current to the electronic components that are likely to malfunction can be suppressed.

Incidentally, the cover body 70 is formed with a separation cover body portion 83. The configuration of the separation cover body 83 will be described in detail below mainly with reference to FIGS. The separation cover body portion 83 has a rectangular shape and has a ROM 105 mounted on the game control circuit board 100.
The cover 70 and the separation cover 83 are integrally formed by connecting projections 84 which are provided at corresponding positions in the upper portion of the upper part and are bridged two by two at appropriate positions in the longitudinal direction (this embodiment). In the form, it is formed integrally with a synthetic resin). Then, by cutting the connecting protrusion 84 using a tool such as a nipper, the separation cover body 83 can be completely separated from the cover 70.

On each of the four sides of the separation cover body 83, a locking piece 85 having a claw at the tip is provided so as to protrude upward. The locking piece 85 is attached to the cover 70 by cutting the connecting projection 84 and separating the separation cover 83 and inspecting the ROM 105 at the time of sample inspection or the like, and then turning over the separation cover 83 again. It is used when doing. Thus, the locking piece 85 in the present embodiment
Are formed as a pair of protruding pieces back to back, and the claw portions at the tips are directed outward from each other. Of course, only one of the locking pieces 85 on the outer side (the side along the edge of the separation cover body portion 83) may be used. However, as will be described later, only one locking piece 85 destroys the locking piece 85. This is not a preferable example because there is a possibility that the engagement state can be released without doing so. The base of the inner locking piece 85 has a claw forming opening 88 for integrally molding the locking piece 85 with synthetic resin.
Are formed.

When the connecting projection 84 is cut to separate the separating cover 83, a rectangular separating opening 87 is formed in the cover 70. An engagement opening 86 that engages with the locking piece 85 when the separation cover body portion 83 is mounted upside down is formed at the location, and the separation cover body portion 83 corresponding to the engagement opening 86 has: A notch 89 for forming an engaging opening for integrally molding the engaging opening 86 with a synthetic resin is formed.
Also, when the separation cover body portion 83 is turned upside down and mounted, the positioning recess 90 in the separation cover body portion 83 and the positioning protrusion 91 in the cover body 70 are each one so that the mounting direction can be easily understood. Formed on the side. Further, along the separation opening edge 87 of the cover body 70, an internal rib 92 for reinforcement is provided.
Are projected downward, and the engagement opening 86 is formed using the internal rib 92. A transparent conductive layer 97 is formed on the inner surface of the separation cover body 83, and the transparent conductive layer 97 is integrally formed over the entire area of the separation cover body 83. Note that the transparent conductive layer 97 of the separation cover body portion 83 is electrically connected to the transparent conductive layer 97 formed in the entire area of the cover body 70 via the transparent conductive layer 97 in the connection protrusion 84 in the initial state. Further, a heat radiating hole 98 (a range indicated by a two-dot chain line in FIG. 1) is also formed on the surface of the separation cover body 83.

Further, the separation cover body 83 and the cover 70
In the initial connection state in which the cover projections 84 are connected to each other, an inner sealing seal 93 is attached in advance on the inner surface of the cover body 70 so as to be bridged between the separation cover body section 83 and the cover body 70. I have. By sticking the inner seal 93 in this manner, even after the separation cover body portion 83 is separated and the covering state is restored by the locking pieces 85 and the engaging openings 86 again, the sticking state of the inner seal 93 is maintained. Cannot be restored, so that it can be understood that the covering state of the separation cover body 83 has been released at least once. Note that the portion of the separation opening edge 87 to which the inner seal 93 is attached is the meandering opening edge 8.
The reason for this is to prevent the inner sealing seal 93 from being cleverly cut by inserting a cutter knife or the like from the separation opening edge 87. Also, the connecting projection 8
7, the separation cover body part 83 is once separated from the cover body 70, and the sealing mark 94 of the inner sealing seal 93 is formed.
Remains in the separation cover body 83, so that the connecting projection 84
, And if the connecting projection 84 cut again is adhered with an adhesive or the like, it is possible to know from the sealing mark 94 whether the fraud has occurred.

In the substrate storage box 50 configured as described above, the box body 51 and the cover body 70 are
Since it is welded and sealed by 1, it is impossible to separate the box body 51 and the cover body 70 and release the covering state of the game control circuit board 100. Therefore, in order to release the covering state, the connecting projection 84 must be cut with a tool such as a nipper to separate the separation cover 83 from the cover 70 and expose the ROM 105. However, when the connecting protrusion 84 is cut in this manner, the cut causes the connecting protrusion 84 to disappear, so that the R of the game control circuit board 100 can be obtained only from that point.
It can be determined whether or not the OM 105 has been subjected to illegal processing.

In the amusement arcade, one out of the pachinko gaming machines 1 arranged on the pachinko island stand by the regulatory agency.
In some cases, the inspection (sample extraction inspection) of the ROM 105 may be performed by extracting two or about two units. When such a sample extraction test is performed, as shown in FIGS. 3A and 4B, the connecting protrusion 84 is cut with a nipper or the like to separate the separation cover body 83, and the ROM 105 is stored. Exposed
After pulling out the ROM 105 and examining it,
105 is mounted on the game control circuit board 100, and thereafter, as shown in FIGS. 3B and 4C, the separation cover body 83 is turned over and the locking piece 85 is engaged with the engagement opening 86. Then, the separation cover body part 83 is attached to the cover body 70.

The mounting structure will be described in more detail. As shown in FIG. 5 (A), when one locking piece 85a is engaged with the engaging portion of the engaging opening 86a, the cover 70 and The incorrect pin 120 is removed from the gap with the separation cover body 83.
By inserting the locking piece 85 and elastically deforming it,
By releasing the engagement state between the locking piece 85 and the engaging portion of the engaging opening 86, and in this state, as shown in FIG. There is a possibility that the covering state can be released without destroying. On the other hand, as in the present embodiment, when the locking piece 85 is composed of a pair of back-to-back protrusions,
As shown in FIG. 6A, even if there is a minute gap L1 between the cover body 70 and the separation cover body 83 on the left and right, as shown in FIG. Even if the pin 120 is inserted and the gap is widened to L2 to disengage the engaged state, the other gap L1 becomes a gap L3 as close as possible to zero and the illegal pin 120 cannot be inserted. The engagement state between the other engagement piece 85 and the engagement opening 86 cannot be released, and as a result, the left and right engagement pieces 8
5 cannot be released at the same time, it is almost impossible to release the covering state based on the locking pieces 85 and the engagement openings 86. Therefore, in order to release the covering state, at least the locking piece 85 must be destroyed, and when the locking piece 85 is broken, a trace remains, and based on the trace, the game control circuit board 1
It can be determined whether or not the illegal processing has been performed on the ROM 105 at 00. In the above-described embodiment, the separation cover body 83
After being separated, it is turned upside down and fixed. However, the present invention is not limited to this. A locking piece 85 is formed on the inner surface of the separation cover body 83, and after being separated, it is rotated 180 degrees without being turned upside down and fixed. Is also good. In this case, since the locking piece 85 does not protrude from the outer side from the beginning, there is an advantage that the locking piece 85 is not broken by an unavoidable force.

Further, the game control circuit board 100 is again covered in a state in which the separation cover body 83 is mounted upside down as described above, and in order to assure this covering state, the inspecting authority which has performed the inspection is required. Inspection sealed paper 95 issued by
May be attached so as to bridge between the separation cover body portion 83 and the cover body 70.

The substrate storage box 50 assembled as described above is configured to be detachably attached to a mounting table 110 fixed to the mechanism plate 41 as shown in FIG. Here, the configuration of the mounting base 110 will be briefly described. The mounting base 110 is integrally formed of a conductive synthetic resin (which may be metal) containing carbon powder or the like, and the engaging piece 54 is formed at the center thereof. A pair of engaging rails 111 to be engaged are formed in an inverted L-shape, and guide pieces 112 (the guide pieces 112 are not necessarily required) projecting from upper and lower edges thereof to guide the side wall of the substrate storage box 50. I have. On the other hand, a locking release lever 113 that is elastically deformed is formed at one end of the mounting base 110, and a locking projection 11 that engages with the locking hole 60 is formed at the base of the locking release lever 113.
4 are protruded. In addition, a ground wire 115 is fixed to the mounting base 110 with screws as necessary.

When the board storage box 50 is mounted on the mounting base 110, the engaging piece 54 is pushed from the side of the mounting base 110 so as to be engaged with the engaging rail 111, and is pushed further strongly to stop. The locking release lever 113 is elastically deformed downward along the inclined surface on the upper surface of the projection 114, and finally the locking projection 114 and the locking hole 60 are engaged to complete the mounting. On the other hand, to remove the substrate storage box 50, the locking release lever 113 is pressed downward to release the engagement between the locking hole 60 and the locking projection 114, and the substrate storage box 50 is pressed in a direction opposite to the pushing direction. Can be easily removed by pulling in the direction of.

As described above, the substrate storage box 5 according to the embodiment
Although the configuration of No. 0 has been described, the board storage box 50 according to the present embodiment is configured such that the game control circuit board 100 is attached to the box body 51 and the game control circuit board 100 is covered with the box body 51. And a cover body 70 made of a transparent synthetic resin to be attached. Since the transparent conductive layer 97 is provided integrally with at least the cover body 70, the inside can be seen through the transparent conductive layer 97. In addition to being possible, the transparent conductive layer 97 provides a sufficient electromagnetic shielding effect, and the internal game control circuit board 100 is not damaged by the cover 70 made of a transparent synthetic resin material or the like even when an external force is applied. .

The substrate storage box 50 described above
In FIG. 12, the transparent conductive layer 97 is formed on the inner surface of the synthetic resin. However, as shown in FIG. 12A, the transparent conductive layer 141 may be formed at an intermediate position of the synthetic resin material 140. Alternatively, as shown in FIG. 12B, a transparent conductive layer 141 is formed on the inner surface of the synthetic resin material 140, and the anti-reflection layer 14 is formed on the outer surface of the synthetic resin material 140.
2 may be formed. The anti-reflection layer 142 is made of various dielectric materials such as zirconium oxide, magnesium oxide, silicon oxide, magnesium fluoride, and aluminum oxide. Like the transparent conductive layer 97, the anti-reflection layer 142 has a vacuum deposition method, a sputtering method, and an ion plating method. It is formed on the surface of the synthetic resin material 141 by a method, a CDV method, or the like. Of course, since the anti-reflection layer 142 is also an extremely thin curtain,
The interior can be seen through and the synthetic resin 141
Is prevented from being reflected on the outer surface, so that there is an advantage that the visibility inside is improved.

In the above-described embodiment, the transparent conductive layers 97 and 67 are integrally formed on the cover 70 and the transparent plate 62. However, the transparent conductive layer 97 is formed on at least a part of the cover 70. It suffices if they are integrated. Conversely, for example, as shown in FIG. 13, when the box body 51 is made of a transparent synthetic resin material, the transparent conductive layer 141 is used.
May be sandwiched between the synthetic resin materials 51a and 51b. Then, an antireflection layer 142 may be formed on the outer surface of the box body 51 in order to improve the internal visibility.

In the above description, the embodiment in which the transparent conductive layer and the synthetic resin are integrated with each other to form the transparent conductive layer on the synthetic resin material constituting the cover body 70 has been described. As shown, the substrate storage box 15
A transparent conductive layer forming plate 152 including a transparent conductive layer in a synthetic resin formed separately from the synthetic resin constituting the transparent resin layer 0 is prepared.
It may be configured such that it is locked to a locking piece 151 formed on the cover body portion of the cover 50.

Further, as another example, as shown in FIG. 15, a thin transparent conductive film 162 may be used without being attached to the surface of the synthetic resin. In this case, holding rods 163 having locking holes 164 are fixed to both ends of the transparent conductive film 162, and the welding locking pins 16 protruding from the end corresponding to the cover body of the substrate storage box 160.
1, and the head of the welding locking pin 161 is welded to prevent the holding rod 163 from falling off by the welding portion 165, so that the transparent conductive film 162 can be accommodated in the substrate housing. The box 160 is configured to cover almost the entire surface of the cover body.

In the embodiment shown in FIGS. 14 and 15, a sufficient electromagnetic shielding effect is exhibited, and even if an external force acts, the internal game control circuit board is not damaged by the transparent synthetic resin material. . In addition, the material of the cover body having transparency is shown as a material using a synthetic resin as a base, but is not limited to this, and a transparent conductive layer may be integrated with a material such as glass as a base.

[0051]

As is apparent from the above description, in the present invention, the board storage box is attached to the mounting member to which the circuit board is attached, and is attached to the attaching member so as to cover the circuit board. A transparent conductive layer is provided integrally with at least the cover member. It has a shielding effect, and does not damage the internal circuit board due to the permeable synthetic resin material or the like even when an external force acts.

Further, the circuit board includes an electronic component on which an integrated circuit is formed, and has a ground structure in which the ground line conductive portion of the circuit board and the transparent conductive layer are connected at a position away from the electronic component. In addition, it is possible to suppress the flow of a noise current to an electronic component that is likely to malfunction.

Further, by forming an anti-reflection layer on the outer surface of the cover member, there is an advantage that reflection of light from the outside is suppressed and the inside can be easily recognized.

[Brief description of the drawings]

FIG. 1 is a plan view of a substrate storage box according to an embodiment.

FIG. 2 is an exploded perspective view of the substrate storage box.

FIG. 3 is a perspective view illustrating a case where a covering state of the substrate storage box is released.

FIG. 4 is a sectional view of the substrate storage box taken along line AA in FIG. 1 and an enlarged partial sectional view of a main part.

FIG. 5 is an enlarged cross-sectional view showing a relationship between a locking piece and an engagement opening when one locking piece is formed.

FIG. 6 is an enlarged cross-sectional view showing a relationship between a locking piece and an engagement opening when two locking pieces are formed.

FIG. 7 is an enlarged view of a portion A in FIG. 8;

8 is a cross-sectional view of the substrate storage box taken along line AA of FIG.

FIG. 9 is an enlarged view of a B circle portion of FIG. 8;

FIG. 10 is a cross-sectional view showing a structure for attaching a sealing paper.

FIG. 11 is a plan view when the sealing paper is peeled off.

FIG. 12 is a cross-sectional view showing another example of integration of a transparent conductive layer and a synthetic resin.

FIG. 13 is a cross-sectional view when a transparent conductive layer is integrated with a box body of a substrate storage box.

FIG. 14 is a perspective view of a substrate storage box showing another example of a state of being covered with a transparent conductive layer.

FIG. 15 is a perspective view of a substrate storage box showing still another example of a state of being covered with a transparent conductive layer.

FIG. 16 is a front view of a pachinko gaming machine as an example of the gaming machine.

FIG. 17 is a rear view of the pachinko gaming machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pachinko gaming machine (gaming machine) 50 Substrate storage box 51 Box (attachment member) 62 Transparent plate 65 (Metal) Space holding cylinder member 67 Transparent conductive layer 70 Cover body (cover member) 72 Fastening piece 74 Screw (earth) Structure) 97 Transparent conductive layer 100 Game control circuit board (circuit board) 105 ROM 107a, 107b Ground line conductive part 140 Resin material 141 Transparent conductive layer 150 Substrate storage box 152 Transparent conductive layer 160 Substrate storage box 162 Transparent conductive film

Claims (3)

[Claims] 1. A board storage box for storing a circuit board provided in a gaming machine, wherein the board storage box is configured to cover the circuit board with respect to the mounting member to which the circuit board is mounted. A transparent cover member to be attached;
Wherein a transparent conductive layer is provided integrally with at least the cover member. 2. The circuit board includes an electronic component on which an integrated circuit is formed, and a ground structure in which a ground line conductive portion of the circuit board and the transparent conductive layer are connected at a position away from the electronic component. 2. The board storage box for a gaming machine according to claim 1, wherein: 3. The board storage box of a gaming machine according to claim 1, wherein an anti-reflection layer is formed on an outer surface of said cover member.