JP3274408B2 - Gaming machine circuit board box - Google Patents

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 circuit board box for covering a circuit board provided in a pachinko game machine or a slot machine.

[0002]

2. Description of the Related Art Conventionally, a substitute for a circuit board provided in a game machine is provided.
Game control circuit board that controls game operation as a representative
On the game control circuit board , a large number of electronic elements such as an MPU, a ROM, and a RAM constituting a microcomputer are mounted. In many cases, different game contents can be realized by exchanging a ROM in which a program for controlling a game operation is stored. However, such ROM replacement is different with the original accepted game content, not allowed, in order to prevent this, the circuit group which covers the game control circuit board
Attach a fragile seal to the component parts of the board box, and if the seal is damaged,
The exchange was deemed to have taken place.

[0003]

However, recently,
By dissolving the glue of the sealing sheet in a special way peeled off the sealing sheet, fraud pasted again sealing sheet to replace the inside of the ROM is done, just by looking at the damage state of the sealing sheet, the circuit board Bo < There has been a problem that it is not possible to know whether or not an illegal process has been performed on the game control circuit board by opening the game box. The present invention has been made in view of the above problems, and has as its object to provide a rotating Michimoto Itabo box of the gaming machine can not be subjected to improper processing circuitry substrate that will be coated therein It is in.

[0004]

To achieve the above object SUMMARY OF THE INVENTION In the present invention, the circuit board box which covers the circuit board provided in a gaming machine, the circuit board board <br/> box, the circuit Places related to components for coating substrates
Release the covering state unless the specific part is destroyed
In addition to providing fixing means that cannot
It is characterized by being provided so as to protrude outside .

The present invention relates to a component for covering a circuit board.
Unless the specified part is destroyed, release the covering state.
Since bets are fixing means are found provided that can not be, the inside
To remove the Ru is covered circuitry substrate is no way other than to destroy some or all of the circuit board box, if the circuit group
If a part of the board box is destroyed, it is immediately known that the illegal processing has been performed. Also, the specified part is outside
Protrusion work is easy because it is provided protruding
That the inspection can be performed easily.
There is a point.

[0006]

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. 11 is a front view of the pachinko gaming machine 1, and FIG. 12 is a rear view of the pachinko gaming machine 1. In FIG. 12, 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 a shot hit is planted in a substantially circular shape, and an area 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 rotary drums 15a to 15c of the variable display device 14 are driven to rotate by an independent drum motor 16 (not shown), and a drum sensor 18 is built in to detect the symbol stop position. A drum lamp 17 (both symbols are shown in the block diagram of FIG. 5) is provided. In addition, each of the rotating drums 15a to 15
The pattern drawn on the outer peripheral surface of c is as shown in FIG. 10, which will be described later in detail.

Further, the variable display device 14 is provided with a decoration LED 20 on an upper part thereof, and a start storage LED 21 below the decoration LED 20. Decorative LED20
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 20 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 20 of “7” is turned off. Also, the starting memory L
The ED 21 displays the stored hit balls among the winning prize holes 23 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 22 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.
, A horizontal hit line 3 interrupted, a right upper diagonal hit line 4, and a lower horizontal hit line 5, and a predetermined symbol (sometimes called 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.

As shown in FIG. 10, there are a total of 21 symbols drawn on the outer peripheral surfaces of the three rotating drums 15a to 15c in the present embodiment.
(Red), "7 (blue)", "FEVER (hereinafter abbreviated as FV)", "King of Trump (hereinafter abbreviated as K)", "Queen of Trump (hereinafter abbreviated as Q)", "Jack of Trump (hereinafter abbreviated) , J) ""Trump's Ace
A), "Jumper of Trump (hereinafter abbreviated as JK)", and each row 15a to 15c as a missing symbol.
, 13 "heart marks", "spade marks", and "diamond marks" are drawn. Then, when the same big hit symbols are arranged in any one of the hit lines 1 to 5 described above, a big hit occurs. As shown in FIG. 9, all the big hit arrangement patterns correspond to a predetermined random number in advance. By extracting one value from the random number at the time of starting winning, it is determined which big hit symbol is lined up with which hit line. Further, the appearance probability of the specific gaming state may be improved for a predetermined period depending on the type of the big hit symbol.

The variable display device 14 configured as described above.
A start winning opening 23 that allows the rotation of the rotary drums 15a to 15c is provided below. The winning ball that has won the start winning port 23 is guided to the back of the game board 11 and detected by the starting port switch 24. The rotation of the variable display device 14 based on the winning in the start winning opening 23 is stored a predetermined number of times (for example, four times), and the fact is indicated by the start storage LED 21 provided in the variable display device 14. ing.

The winning area 2 is located below the variable display device 14.
6 is provided. The winning area 26 of the variable winning ball device 25 is closed by an opening / closing plate 27 which is pivotally supported at both lower ends and which can be opened and closed in a direction perpendicular to the game board 11 surface. This opening / closing plate 27
The opening and closing is controlled by an opening / closing plate solenoid 28, and during opening, a hit ball falling on the surface of the game board 11 is received and guided to the winning area 26 to be a winning ball. In addition, the winning area 26
Is divided into three parts, a specific area 29 is formed in the center, and a normal area is formed on the left and right sides. A specific area switch 30 is provided in the specific area 29, and a 10 count switch 31a, 3 is also provided in the normal winning area.
1b is provided.

In the center of the rear wall of the winning area 26, a ball hits the specific area 29 and the specific area switch 3
V that notifies that the continuation right has been established when 0 is turned on
A display LED 32 is provided, and on one side thereof, a number-of-openings indicator 33 for displaying the number of times the opening and closing plate 27 is opened in a specific game state is provided. A specific area switch 30 and a 10 count switch 3 are located below the winning area 26.
Number display L indicating the number of hit balls detected in 1a and 31b
An ED 34 is provided. Furthermore, the variable winning ball device 25
A normal winning opening (no sign)
Are integrally formed, and an attacker lamp 35 is provided outside the winning opening.

The variable winning ball device 25 configured as described above operates as follows. That is, the hit ball wins one of the starting winning ports 23 and the starting port switch 2
4 is turned on, the rotating drum 15 of the variable display device 14 is turned on.
a to 15c start rotating for a certain period of time (for example, 5 seconds)
, The rotation drums 15a to 15ca are sequentially stopped from the left side, and when the combination of symbols at the time of stopping all the rotation drums 15a to 15c becomes the combination of the big hit symbols, a specific game state is set. In this specific game state, the opening and closing plate 27 of the variable winning ball device 25 is set to open for a predetermined period (for example, until 20 seconds elapse or until ten winning balls are generated). While hitting, the ball hitting the surface of the game board 11 is received. When the player wins the specific area 29 provided in the winning area 26, the above-described open state is repeated again. Each time a winning ball wins in the specific area 29, the continuation right is established and the open state is repeated up to 16 times. Is available.

Further, on the surface of the game board 11, windmill lamps 37 are provided on the upper left and right sides of the variable display device 14, and a winning opening (no symbol) is provided on the lower side.
Further, the windmill lamp 37 is lit or flashed at the time of the specific game state or at the time of starting prize to inform the user of the fact, and has a similar function. Is provided. 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 38 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. 12, a mechanism plate 41 is provided so as to be openable and closable. At the center of the mechanism plate 41, a window opening 42 is provided.
The game board 11 corresponding to the window opening 42 is provided with a winning ball set cover body 39 on the back surface thereof. The rearward projection of the variable display device 14 penetrates the winning ball aggregate cover body 39, and the drum relay board 19 is provided on the rear surface of the rearward projection. This drum relay board 1
9, wires from the drum motor 16, the drum lamp 17, the drum sensor 18 and the like are connected via connectors, and wires connected to a game control circuit board 70 described later are also connected via connectors. It has become so. On the back of the winning ball set cover body 39, electric devices (for example, a starting port switch 24, a solenoid 28, a specific area switch 30, a 10 count switch 31a, 31b,
While wires from various displays and lamps are connected via a connector, a relay board 40 is also provided to which wires from the game control circuit board 70 are connected via the connector. In short, both the drum relay board 19 and the relay board 40 relay the wiring between the game control circuit board 70 and the electric equipment provided on the game board 11.

The mechanism plate 41 includes a prize ball tank 43 for paying out a predetermined number of prize balls based on a prize ball generated as is well known, a prize ball payout device 44, a prize ball processing device 45, and the like. Various types of mechanisms are provided, and a board for storing a game control circuit board 70 for controlling a game operation of a game device such as the variable display device 14 or the variable winning ball device 25 provided on the game board 11 described above. The storage box 50 is also attached to the back of the mechanism plate 41. The game control circuit board 70 housed in the board housing box 50 is connected to a terminal board 46 provided on one upper side of the mechanism plate 41 and receives power supply. Also,
The terminal board 46 not only supplies power to the game control circuit board 70, but also supplies power to an electric drive source provided in the pachinko gaming machine 1, for example, a hitting ball launching device 47, and also supplies power to the pachinko gaming machine 1. Terminals for relaying signal lines inside or for relaying signal lines between the pachinko gaming machine 1 and the outside are also provided.

Next, a circuit board constituting a main part of this embodiment will be described.
The configuration of the plate box 50 will be described with reference to FIGS. Figure 1 is a cross-sectional view and enlarged partial cross-sectional view of a circuit board box 50, FIG. 2 is an exploded perspective view of a circuit board box 50, FIG. 3 is a plan view of a circuit board box 50, FIG. 4 5 is a side view of the circuit board box 50. FIG. Thus, the circuit board box 50 is assembled from the box body 51 that houses and supports the game control circuit board 70, and the cover body 60 that closes the upper surface of the box body 51, and is thus assembled. The circuit board box 50 can be detachably attached to a mounting table 80 fixed to the back surface of the mechanism plate 41. Hereinafter, each of the assembled components will be described.

First, the box body 51 is formed of a synthetic resin (or metal) in the shape of a rectangular parallelepiped having an open upper surface, and a heat radiating hole 5 for radiating heat generated inside almost all over the side wall.
2 are drilled. Also, on the bottom of the box 51,
A relatively large rectangular opening 53 is opened.
An L-shaped engagement piece 54 that engages with an engagement rail 81 described later of the mounting base 80 is formed at the longitudinal opening edge of the mounting base 3 to hang down. As shown in FIG. 1A, the bottom surface of the box body 51 is formed at a position slightly above the lower end of the side wall in a raised state.
Are located on the same plane as the side wall of the box body 51.

Further, a locking hole 51a is formed in the center of the front part of the box body 51, support positioning protrusions 55 are protruded on the left and right parts of the front part, and stop protrusions 56 are protruded on the left and right parts of the rear part. ing. The locking hole 51a is provided in the circuit board box 5
When the “0” is mounted on the mounting base 80, it engages with a locking projection 84 formed on the mounting base 80 to support and fix the entire circuit board box 50 on the back surface of the mechanism plate 41. Further, the support positioning projection 55 is for holding both ends of the front part of the game control circuit board 70 with a pressing member 67 which will be described later provided on the cover body 60, and the stop projection 56 is provided for the game control circuit board 70. The both ends of the rear portion are fixedly supported by screws 73. The support positioning projection 55 and the stop projection 56 will be described later in detail. Locking projections 57 are formed on the inner sides of both sides in the longitudinal direction of the box body 51.
When the cover body 60 is covered with the box body 51, the locking protrusion 57 engages with a locking hanging piece 66 formed on the back surface of the cover body 60.
The engagement state between the lock hanging piece 66 and the locking hanging piece 66 constitutes fixing means that cannot be released from the engagement state by operating from the outside. This will be described in detail later. Further, the rear side wall of the box body 51 is a wiring lead-out recess 58 having a low height.

A transparent plate 59 is provided to close the opening 53 of the box body 51 from the inside of the box body 51 to the bottom surface. For this reason, at the four corners of the transparent plate 59, spacing cylinder portions 59a are formed on the upper surface.
As shown in FIG. 1A, the support positioning protrusion 5
5 and the retaining projection 56, which is held at a predetermined position,
Also, the game control circuit board 7 is provided on the upper surface of the space holding cylinder 59a.
0 contacts the transparent plate 59 and the game control circuit board 70
And hold the interval. By closing the bottom surface of the box 51 with the transparent plate 59, the game control circuit board 7 is closed.
The back surface (solder surface) of the “0” can be seen through from the outside, and an illegal operation is performed on the solder surface (for example, an illegal operation to connect a jumper wiring or mount an electronic element).
If you do, you will know immediately. In this sense, it is sufficient that the size of the opening 53 closed by the transparent plate 59 is large enough to allow the entire area of the solder surface to be seen while the circuit board box 50 is inclined.

On the other hand, the cover body 60 for closing the upper surface of the above-mentioned box body 51 is integrally formed of a transparent synthetic resin, and the rear portion thereof becomes a partition piece 61 bent downward. I have. The position of the partitioning piece 61 is such that when the cover body 60 is mounted on the box body 51, the connector mounting area 72 of the game control circuit board 70 appears outside to form the connection opening 62 as shown in FIG. It is bent at the position.
Thus, it is possible to connect a wiring from the outside to the connector facing the connection opening 62 in a state where the cover body 60 is assembled to the box body 51. A large number of radiating holes 63 for radiating internally generated heat to the outside are formed in almost the entire surface of the cover body 60 in a range excluding the display region 69 (a range surrounded by a two-dot chain line in FIG. 3). Have been. Also, the cover body 6
L-shaped L-shaped protrusions 64 are formed in rows on both sides of the upper surface of the zero. The L-shaped projection 64 can insert a metal plate for noise prevention as needed when the influence of external noise is great. Further, as shown in FIGS. 1A and 3, a hooking portion 6 that engages with the upper end edge of the side wall of the box body 51 is provided at the longitudinal edge of the cover body 60.
5 are protruded from the upper and lower portions at two places, and a locking hanging piece 6 hanging downward is provided on the cover body 60 between the engaging portions 65.
6 are formed. Further, pressing members 67 are hung on both sides of the front part of the cover body 60.
Is sealed to the box body 51 so that the seal paper 68 is stuck between the front hanging portions 65 and between the upper end of the locking hanging piece 66 and the side wall of the box body 51.

Before giving a detailed description of the pressing member 67 and the locking hanging piece 66, the structure of the game control circuit board 70 will be briefly described. The upper surface is used as a mounting surface for electronic components, most of the mounting surface is used as an electronic component mounting area 71, and a part on the rear side is used as a connector mounting area 72. Also, the game control circuit board 7
0 has locking holes 74 corresponding to the support positioning projections 55 on the front left and right sides thereof, and stop holes 75 corresponding to the stop projections 56 on the rear left and right sides.

The operation of the holding member 67 of the cover body 60 and the hanging piece 66 will be described below. First, the operation of the holding member 67 will be described. In the box 51 with the transparent plate 59 attached, the locking hole 74 in front of the game control circuit board 70 is
5 and the rear stop hole 75 is placed on the stop protrusion 56. In this state, the stop hole 75 and the stop protrusion 5
By screwing the screw 73 with the holes 6 aligned, the game control circuit board 70 is temporarily fixed to the box 51. After that, the cover body 60 is mounted from above the box body 51. At this time, the tip of the holding member 67 is
(A) (This drawing is a cross-sectional view cut along the line AA in FIG. 3). The support contacting the upper surface of the game control circuit board 70 and penetrating the locking hole 74. Since the tip projection of the positioning projection 55 engages with the hole formed at the center of the pressing member 67, the front portion of the game control circuit board 70 is clamped and fixed by the supporting positioning projection 55 and the pressing member 67. The game control circuit board 70 is completely fixed in the board storage box 50 by the fixing with the screw 73 at the rear part.

On the other hand, the operation of the locking hanging piece 66 will be described. The locking hanging piece 66 corresponds to the locking projection 57 provided on the inner side of the side wall of the box body 51, as shown in FIG. In addition, the locking hanging piece 66 is formed by penetrating through the through hole 66b formed in the cover body 60 and once protruding upward, then being bent in a U-shape and integrally connected to the upper surface of the cover body 60. A claw portion 66a projecting outward is formed at the lower end. On the other hand, the upper surface of the locking projection 57 is an inclined surface 57a, and the lower portion is an engaging surface 57b cut at an acute angle. Then, the cover body 60
Is mounted from above the box body 51, the claw 66a of the locking hanging piece 66 moves downward while being elastically deformed along the inclined surface 57a, and finally the claw 66a and the engaging surface 57b are engaged. It will be in the state of having done. Engagement of the locking suspended piece 66 and the locking projection 57 in this state, but it is necessary to move the pawl portion 66a of the locking suspended piece 66 on the inner side, the circuit board box 50
Since such a moving operation cannot be performed from the outside of the box 51, once the cover body 60 is once attached to the box body 51, the cover body 60 cannot be easily removed from the box body 51. Then
If you try to remove it, the circuit group as shown in FIG. 1 (B)
The part protruding outside with respect to the plate box 50 is B-
The locking hanging piece 66 must be separated from the cover body 60 by cutting with a nipper or the like along the line B as shown in FIG.

As described above, in this embodiment, the circuit
Box 5 in which board box 50 includes game control circuit board 70
Meanwhile it constituted assembling a plurality of components 1 and cover 60, made of engaging suspended piece 66 and the engaging projection 57 when assembling the cover member 60 is assembled components
Since the fixing means is provided, in order to take out the game control circuit board 70 which is covered inside, with respect to the circuit board box 50 of the locking hanging piece 66 which is a part of the cover body 60 .
There is no other way than cutting the part protruding outside ,
If the locking hanging piece 66, which is a part of the cover body 60, is cut, it is immediately known that an illegal processing operation has been performed. In addition, the locking hanging piece 66 described above may be formed directly on the back surface of the cover body 60 (without forming the through hole 66b). In this case, the cover body 60 at the locking hanging piece 66 portion is broken. Otherwise, the engagement between the cover body 60 and the box body 51 cannot be released. In addition, locking hanging piece 6
When a large number of 6 are formed, the engagement state cannot be released unless substantially all of the cover body 60 is destroyed.

The circuit board box 50, which is assembled so as to be inseparable from the outside as described above, is detachably mounted on a mounting table 80 fixed to the mechanism plate 41 as shown in FIG. Has become. Here, the mounting base 80 will be briefly described. The mounting base 80 is integrally formed of synthetic resin (or may be metal), and a pair of engaging rails 81 for engaging with the engaging pieces 54 is provided at the center thereof. is formed in an L-shape, the guide piece 82 for guiding the side wall of the circuit board box 50 at its upper and lower edge (the guide piece 82 is not necessarily required) is projected. On the other hand, the mounting table 80
An unlocking lever 83 that is elastically deformed is formed at one end of the lock lever. The locking hole 51 is formed at the base of the unlocking lever 83.
The locking projection 84 that engages with the projection a is protruded. When the circuit board box 50 is mounted on the mounting base 80, the engaging pieces 54 are engaged with the engaging rails 8 from the side of the mounting base 80.
1, and by further pushing the locking projection 84, the locking release lever 83 is elastically lowered along the inclined surface of the upper surface of the locking projection 84, and finally, the locking projection 84 and the locking hole 5.
1a is engaged to complete the mounting. On the other hand, remove the circuit board box <br/> box 50, a circuit board box 50 in a state in which the disengaging lever 83 to release the engagement between the engaging hole 51a and the engaging projection 84 is pressed downward It can be easily removed by pulling it out in the direction opposite to the pushing direction.

By the way, the pachinko gaming machine 1 shown in FIG.
The game operation appearing as described above is as described above, but the circuit configuration formed on the game control circuit board 70 for controlling the game operation is as shown in FIG. FIG. 5 is a circuit diagram showing a game control circuit in a block configuration, which is controlled by a main basic circuit 90 including an MPU, a ROM, a RAM, and an input / output circuit. The variable display device 14 is controlled by a sub basic circuit 91 controlled by the basic circuit 90. The detection signals from the 10 count switches 31a and 31b, the specific area switch 30, and the starting port switch 24 are input to the main basic circuit 90 via the switch input circuit 98. 90 is supplied with a chip select signal. When the power is turned on, a reset signal is supplied from the initial reset circuit 93 to the main basic circuit 90, and the clock reset pulse generating circuit 94 outputs the main basic circuit 90 and the sub basic circuit 9 at predetermined time intervals.
1 is supplied with a periodic reset signal.

On the other hand, a control signal is supplied from the main basic circuit 90 to the following devices and circuits. That is, the sound circuit 9
An audio signal is given to the speaker 7 through the
Opening number indicator 3 via LED / lamp drive circuit 96
3, number display LED34, decoration LED20, V display LE
D32, line display LED22, and start storage LED2
1 is provided with a display control signal, and is also connected to a solenoid 2 for an open / close plate via a lamp / solenoid / information output circuit 97.
8, side lamp 36, rail decoration lamp 38, attacker lamp 35, game effect lamp 10, windmill lamp 37
Is driven, and the jackpot information, the hit information, and the effective start information are derived to the outside.

The rotating drums 15a to 15c of the variable display device 14 are controlled by a dedicated sub basic circuit 91, to which a control signal is given from a main basic circuit 90. Thus, a drive signal is supplied from the sub basic circuit 91 to the drum lamp 17 via the drum lamp circuit 99, and the drum motor circuit 1
00, a drive signal is given to the drum motor 16;
From the drum sensor 18 incorporated in the drum motor 16, an input signal is sent to a sub basic circuit 91 and a basic circuit 90 via a sensor input circuit 101. It should be noted that the power supply circuit 10
2, power having various voltages is supplied to the drum lamp 17, and power having a predetermined voltage is supplied from the drum lamp power supply 103.

An example of a specific operation of the game control circuit described above will be described with reference to time charts and explanatory diagrams shown in FIGS. FIG. 6 is a time chart showing the variable display operation of the variable display device 14 based on the winning of the hit ball into the starting winning opening 23, and FIG. 7 is a list of random numbers used for hitting / losing. FIG. 8 is an explanatory diagram for explaining a method of selecting a winning symbol determined when a hit ball wins the starting winning opening 23, and FIG. 9 is a table showing a correspondence relationship between a big hit symbol and a random number. And FIG.
5 is a developed view of a symbol formed on the outer peripheral surface of the rotating drums 15a to 15c. In FIG. 6, when a ball hits the starting winning opening 23 and turns on the starting opening switch 24 to derive the starting signal S1, one value is extracted from the random 1 and stored at the rising of the starting signal S1. Is done. As shown in FIG. 7, the random number 1 is a random number for determining whether or not it is a hit symbol.
The 254 numerical values of “3” fluctuate every moment.

After deriving the start signal S1, the value of the random 1 stored when 0.128 seconds or 0.130 seconds have elapsed is read out, and after deriving the start signal S1, 0.132 seconds or 0.132 seconds is read.
One second is extracted from random 3 when the read value of random 1 is not a hit when seconds or 0.134 seconds have elapsed, and one value is selected from random 2, 4, 5 when the read of random 1 is a hit. The value is extracted. As shown in FIG. 7, random 2 is a random number for determining the arrangement of the big hit symbols shown in FIG.
Zero values change every moment. Random 3 is "0
9261 "are changed every moment, and the symbol corresponding to the extracted value is displayed at a predetermined position, which is a position visible to the player. The random number 4 is a random number for determining the lighting position of the decoration LED 20, and the random number 5 is the rotating drums 15a to 15c at the time of the reach or the big hit.
Is a random number for determining the rotation pattern.

When the numerical value extracted from the random 1 is "8", a big hit is determined as shown in FIG. 8, and the symbol and arrangement to be the big hit are determined by the random 2 data. When the extracted numerical value is other than “8”, it is determined that the hit is not a big hit but a loss, and the symbol corresponding to the value extracted at random 3 is a position where the symbol can be visually recognized by the player as described above. It is displayed at the position. However, if the extracted value coincides with the big hit symbol by accident, 1 is added to the three random data and the data is displayed as a missing symbol.

As described above, at the time of deriving the start signal S1, it is determined whether or not the combination of the symbols displayed on the variable display device 14 is a hit, and the symbol displayed at the time of stop is also determined. Is completed (in the present embodiment, after 0.206 seconds have elapsed after derivation of the start signal S1), first, the left rotating drum 15a (hereinafter, referred to as a symbol 15a) starts to fluctuate, and a slight time interval (0 .100 seconds)
, The right rotating drum 15c (hereinafter, symbol 15c) and the center rotating drum 15b (hereinafter, symbol 15b) start to fluctuate sequentially. In addition, symbols 15a to 15
In the variable start operation c, the rotation may be started in the order determined as described above in normal times, and the start order may be changed in reach or big hit. As a result, the player can be notified in advance that the fluctuation result will be a reach or a big hit.

Thus, in the variation display of the symbol 15a, the variation is set at a predetermined variation speed during the basic time (6.300 seconds), and when the basic time elapses, the variation time of one symbol elapses. When you stop. Similarly, pattern 15
In the variation display of c, the variation speed is set at a predetermined variation speed during the basic time (6.200 seconds) slightly shorter than the above, and when the basic time elapses, the variation time for six symbols elapses. Stopped.

On the other hand, in the variation display of the symbol 15b,
When the stopped symbols on the hit lines displayed on the symbols 15a and 15c that have already stopped are not hit symbols (when not in the reach state) and when they are hit symbols (in the reach state).
And variably displayed in different modes. Therefore, first, the fluctuation display when not in the reach state will be described. For a shorter basic time (6.100 seconds), the fluctuation speed is set at a predetermined fluctuation speed, and when the basic time elapses, 11 symbols are displayed. Stops when the fluctuation time has elapsed.

On the other hand, in the variation display in the reach state, the variation is displayed in a different pattern depending on the extracted value of the random number 5. Specifically, when the extracted value of the random 5 is other than “4”, the fluctuation pattern displayed as reach 1, that is, the predetermined fluctuation speed is set during the basic time (6.100 seconds). After changing the basic time, 21 to 42 symbols are changed at a slightly slower changing speed and stopped. When the extracted value of the random number 5 is “4”, the fluctuation is displayed in the fluctuation pattern displayed as the reach 2, that is, after the fluctuation is stopped in the same pattern as the reach 1, the short fluctuation and the stop are repeated a plurality of times. And stop. When the stop symbol is "7 (red)", the short fluctuation and the stop temporarily stop at the hit symbol "7 (blue) four symbols before the stop symbol" 7 (red) ", and then stop. Stop once at the hit symbol "J" three symbols before, stop once at the hit symbol "A" two symbols before, and then hit one symbol "J" before the symbol.
The stop is temporarily stopped at "K" and finally stopped at the stop symbol "7 (red)". In other words, control is performed so as to stop for each hit symbol in front of four stop symbols (the number of symbols is not counted in the calculation of this number). It should be noted that such short fluctuation and stop may be performed not only on the symbol 15b that is stopped last but also on other symbols 15a and 15c at the same time. Further, the variation mode of the reach 2 may be performed only when the big hit finally occurs.

As described above, the game control circuit board 7 according to the embodiment
Although the configuration and operation of the circuit board box 50 that covers the cover 0 have been described, according to the present embodiment, the circuit board box 50 is formed of the box body 51 and the cover body 60 including the game control circuit board 70. Meanwhile constituted assembling a plurality of components, fixed hand consisting engaging suspended piece 66 and the engaging projection 57 when assembling the cover member 60 is assembled components
Since the step is provided, in order to take out the game control circuit board 70 covered inside, the locking hanging piece 66 which is a part of the cover body 60 is externally attached to the circuit board box 50.
There is no other method than cutting the protruding portion . If the locking hanging piece 66, which is a part of the cover body 60, is cut, it can be immediately recognized that an illegal processing operation has been performed.
Also, the predetermined portion is provided so as to protrude outside.
Can easily perform destruction work and inspection
There is the advantage that it can be done.

In the above-described embodiment, the box 51, the cover 60, and the game control circuit board 70 are used as the assembly components of the circuit board box 50, but the game control circuit board 70
Any structure may be used as long as it covers the surface. For example, the circuit board box is integrally formed, and the game control circuit board 70 is released unless it is broken when the game control circuit board 70 is inserted from the insertion opening of the integrally formed circuit board box.
A structure in which the game control circuit board 70 is covered by a fixing means that does not come into contact may be used. Also, the circuit board box 50
The substrate coated on is not limited to the one that controls the game operation,
The present invention can also be applied to a circuit board box that covers a control circuit (for example, a prize ball payout control circuit) in which cheating is easily performed.

[0039]

As is apparent from the above description, according to the present invention, a structure for covering a circuit board is provided.
Unless the specified part of the part is destroyed,
Since fixing means can not be released is al provided to take out the circuitry substrate that will be covered within the circuit groups
No way other than to destroy some or all of the plate box, if it is temporarily destroyed part of the circuit board boxes,
It is immediately apparent that an illegal process has been performed. Also prescribed
Is protruding outside, so destruction work
Can be performed easily, and inspection can be performed easily.
There is an advantage that you can do it.

[Brief description of the drawings]

FIG. 1 is a sectional view and an enlarged partial sectional view of a circuit board box according to an embodiment.

FIG. 2 is an exploded perspective view of a circuit board box.

FIG. 3 is a plan view of a circuit board box.

FIG. 4 is a side view of the circuit board box.

FIG. 5 is a circuit diagram showing, in a block configuration, a game control circuit formed on a game control circuit board.

FIG. 6 is a time chart showing a variable display operation of the variable display device based on winning of a ball hitting a start winning opening.

FIG. 7 is a table showing a list of random numbers used for hits and misses.

FIG. 8 is an explanatory diagram illustrating a method of selecting a winning symbol determined when a hit ball wins a starting winning opening.

FIG. 9 is a table showing a correspondence between a big hit symbol and a random number.

FIG. 10 is a development view of a symbol formed on the outer peripheral surface of the rotary drum.

FIG. 11 is a front view of a pachinko gaming machine as an example of the gaming machine according to the embodiment.

FIG. 12 is a rear view of the pachinko gaming machine.

[Explanation of symbols]

1 Pachinko gaming machine 50 Circuit board box 51 Box body 57 Locking projection (fixing means) 57a Inclined surface 57b Engaging surface 60 Cover body 66 Locking hanging piece (fixing means) 66a Claw portion 66b Through hole 70 Game control circuit board ( Circuit board) 80 Mounting base 90 Basic circuit

Claims (2)

(57) [Claims] 1. A circuit board box for covering a circuit board provided in a gaming machine, wherein the circuit board box releases its covering state unless a predetermined portion relating to a component for covering the circuit board is destroyed. A circuit board box for a gaming machine, wherein a fixing means that cannot be provided is provided, and the predetermined portion is provided so as to protrude outside. 2. The circuit board box includes the circuit board.
Claims wherein the solder surface of the device can be seen through from the outside
Item 2. A circuit board box for a gaming machine according to Item 1.