JPH09239131A - Game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the illegal modification of the contents of game control information and easily inspect the information by mounting a game control means, an inspection information memory means and a game control information memory means respectively on a game control substrate. SOLUTION: A basic circuit 66 for controlling each equipment of a pachinko (Japanese pinball game) machine according to a control program is provided with a game control CPU 96, RAM 97, ROM 98 and a clock generation circuit 99. Also, the circuit 66 is provided with CPU 100 and RAM 102 for a security check. Furthermore, a program write circuit 103 and inspection ROM 117 are respectively housed in separate semiconductor packages and mounted on a game control substrate 113. In particular, the ROM 117 is mounted so as to be detachable from the substrate 113 for the convenience of program inspection. As a result, the contents of the game control information is protected against an illegal modification and can be easily inspected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gaming machine represented by a pachinko gaming machine, a coin gaming machine, a slot machine or the like, and more specifically, a gaming machine for controlling a gaming state based on stored gaming control content information. Regarding

[0002]

2. Description of the Related Art Information related to the contents of game control such as a program for game control (hereinafter referred to as game control content information) is stored in a generally known game machine of this type. There has been a gaming machine in which game control content information is read from a ROM and a CPU for game control controls a gaming state based on the information.

With this type of gaming machine, the ROM for gaming control is inspected. In that inspection,
Whether the game control content information stored in the ROM for game control is read by the inspector, and whether the read game control content information is a sound game that has passed a certain standard. Is judged. Such an inspection is performed, for example, on the gaming machine after being installed in the game arcade.

The ROM for game control is generally formed on a semiconductor chip different from the CPU for game control as game control means. Such a ROM is detachably attached to the game control board by itself. Then, at the time of the above-mentioned inspection, the ROM is
Is removed from the board, the above-mentioned inspection is performed, and then the board is mounted on the board again.

[0005]

However, in the conventional game machine of this type, since the ROM for game control is attached to the board for game control as a single unit, the R for inspection is used.
Although it is easy to remove the OM and read the information from the ROM, on the other hand, there is a problem that the ROM is apt to be illegally modified such as being replaced with an illegal ROM. That is, in the conventional gaming machine, there is a problem that the game control content information used for the game control is likely to be illegally modified.

The present invention has been conceived in view of the actual situation, and an object thereof is to prevent illegal modification of game control content information as much as possible and to easily inspect the game control content information. Is to provide.

[0007]

The present invention according to claim 1 is a gaming machine for controlling a gaming state based on stored gaming control content information, and is used for controlling a gaming state of the gaming machine. Includes a game control board, the game control board stores game control content information and game control means for controlling a game state of the gaming machine based on the game control content information, and stores the stored information. When the inspection is performed, the inspection information storage unit for reading out the stored game control content information and the game control unit are integrally formed, store the game control content information, and store the stored game control. It is characterized in that the content information is attached to a game control information storage means used for controlling the game state by the game control means.

According to a second aspect of the present invention, in addition to the configuration of the first aspect of the invention, the inspection information storage means includes:
The game control content information is stored in advance, and the game control information storage means reads and stores the game control content information previously stored in the inspection information storage means, and is stored thereafter. The game control content information is used for controlling the game state by the game control means.

According to a third aspect of the present invention, in addition to the configuration of the second aspect of the invention, the game control content information stored in the inspection information storage means is the game control information storage means. It is characterized in that it further comprises an information rewriting disabling means for disabling the rewriting of the game control content information stored in the game control information storage means after it has been read and stored.

[0010]

According to the present invention as set forth in claim 1, the game control means, the inspection information storage means and the game control information storage means are attached to the game control board used for controlling the game state of the gaming machine. ing. The operation of the game control means controls the game state of the game machine based on the game control content information. The inspection information storage means stores the game control content information, and when the stored information is inspected, the stored game control content information is read. The game control information storage means is formed integrally with the game control means. The game control information storage means stores the game control content information, and the stored game control content information is used by the game control means to control the game state. In this way, when the inspection of the game control content information is performed, the game control content information stored in the inspection information storage means is read and used for the inspection, while the game control means controls the game state. , The game control content information stored in the game control information storage means is used.

According to the present invention described in claim 2, in addition to the operation of the invention described in claim 1, the following operation is performed.
The game control content information is stored in advance by the inspection information storage means. In the game control information storage means, game control content information stored in advance in the inspection information storage means is read and stored. Then, after that, the game control content information stored in the game control information storage means is used for the control of the game state by the game control means. In this way, the game control content information stored in the inspection information storage means becomes the storage information in the game control information storage means.

According to the present invention described in claim 3, in addition to the operation of the invention described in claim 2, the following operation is performed.
By the function of the information rewriting disabling means, the game control content information stored in the inspection information storage means is once read and stored in the game control information storage means, and then stored in the game control information storage means. Rewriting of game control content information is disabled. Therefore, the game control content information once stored in the game control information storage means cannot be rewritten to information other than the information read and stored from the inspection information storage means.

[0013]

Embodiments of the present invention will be described below in detail with reference to the drawings. In the following embodiments, a pachinko gaming machine is shown as an example of the gaming machine, but the present invention is not limited to this, and may be a coin gaming machine, a slot machine, or the like, and is stored. As long as the gaming machine controls the gaming state based on the gaming control content information, it can be applied to all gaming machines.

First Embodiment FIG. 1 is a front view showing a structure of a game board of a game machine according to an embodiment of the present invention. Two partition rails 2 are planted in a circle on the front surface of the game board 1. Partition rail 2
Is composed of an outer rail and an inner rail, and a region surrounded by the outer rail and the inner rail is called a game region.

The pachinko game machine 34 (see FIG. 2) having the game board 1 is provided with a game operation handle 44 (see FIG. 2) for the player to operate the hitting of a ball. When the player operates the hit ball operation handle 44, hit balls are fired one by one. The fired ball is guided to the game area 3 by a guide path formed between the outer rail and the inner rail.

At the center of the game area 3, a variable display device 4 for variably displaying a plurality of types of images is provided.
Below the variable display device 4, a starting opening 10 and a variable winning ball device 11 are provided. In the case of the present embodiment, the variable display device 4 is composed of a CRT (liquid crystal display device) and has a variable display section 5. Further, on the left side of the variable winning ball device 11, which is commonly called “sleeve part”,
A variable starter device (normal electric outlet) 14 including a so-called electric tulip is provided. The left and right sides of the game area 4 are side lamps A22 and B23, respectively.
Is provided. The side lamp A22 has a lamp 32
The side lamp B23 is provided with a lamp 31
Is provided. Furthermore, a winning opening 7 is provided above the variable display device 4. In addition, a winning opening 20 is provided at the lower right "sleeve" of the game area 3.

The variable winning ball device 11 is provided with an opening / closing plate 12 which can be tilted in a predetermined range in the front-back direction of the game area 3. The variable winning ball device 11 closes the opening / closing plate 12 except when a big hit occurs, and is in a second state which is disadvantageous for a player who cannot win a ball. On the other hand, the starting opening 1 of the variable starting opening device (ordinary electric part) 14
5 or a variable display portion 5 of the variable display device 4 by hitting a ball at the starting opening 10 provided on the upper part of the variable winning ball device 11 and detecting the ball hit by the starting ball detector 26 or 29.
In the above, variable display of three symbols is performed (hereinafter, each symbol is particularly referred to as "special symbol"). When this variable display is stopped, a combination of three symbols becomes a predetermined specific combination and a big hit occurs, the variable winning ball device 11 is a player who can win a ball from the second state. This is the first state that is advantageous for
1 is in the open state. The game state in which a big hit occurs is particularly called a specific game state.

The first state of the variable winning ball device 11 is as follows:
After the opening / closing plate 12 is in the open state, 30 seconds elapse, or 1 hit ball is placed in the special winning opening of the variable winning ball device 11.
The process ends when the earlier condition of the winning of zero is satisfied. That is, when the above conditions are satisfied, the opening / closing plate 12 is closed, and the variable winning ball device 11
Is the second state that is disadvantageous to the player. The hit balls that have won the special winning opening are detected by the prize winning detector 28 provided inside the special winning opening of the variable winning ball device 11.

On the left side inside the special winning opening is usually "V
A specific area called a "pocket" is provided. When the hit ball that has entered the special winning opening wins this specific area, the specific winning ball is detected by the specific ball detector 27 provided in the V pocket. When a specific winning ball is detected, the variable winning ball device 11 is driven to the first state again after waiting for the first state of the variable winning ball device 11 advantageous to the player to end. Repeated continuous control for controlling is performed. By this repeated continuation control, the variable winning ball device 11 is brought into the first state for 16 consecutive times at the maximum. The number of hit balls entering the special winning opening is sequentially displayed on the number display 24. After the repetition continuation control is completed, the first state, which is advantageous to the player, is changed to the second state, which is disadvantageous to the player.

The variable display of the variable display device 4 is started in response to the occurrence of a so-called start winning due to a ball hitting the starting port 10 or the starting port 15, and the variable display is being performed. The starting winnings generated in 1 are stored, and the number of the starting memories is notified to the player by lighting the starting memory display 6. When there is a start memory, after the variable display is stopped, the variable display based on the start memory is started again. The upper limit of starting memory is set to four.

The game area 3 is provided with a passage opening 13, and when a hit ball passes through the passage opening 13, the fact is detected by the passage ball detector 30, and the variable starting opening device 14 is provided.
The variable display of the symbols on the variable display 17 (hereinafter, the symbol displayed on the variable display 17 is referred to as a normal symbol) is started. Then, when the variable stop result becomes a predetermined symbol, the left and right movable pieces 16 of the variable start port device 14 are opened, and the ball is in a state where it is easy to hit the start port 15. If the hitting ball passes through the passage opening 13 while the variable display of the variable display 17 is being performed, the number of passages is displayed on the passage memory display 18. The upper limit of the memory of this passing ball is set to four. In addition, the hitting ball 13
Passing, is particularly called the starting pass of the normal symbol, the memory of the passing ball displayed on the passing memory display 18 is particularly called the starting pass memory of the normal symbol.

When the number of stored winning awards displayed on the starting memory indicator 6 has reached the upper limit value, even if more starting winnings occur, the winnings are not stored and are invalid. Similarly, the starting pass of the normal symbol that occurs when the passing ball storage number displayed on the passing storage display 18 (starting pass storage number of the normal symbol) has reached the upper limit value is invalidated without being stored. Therefore, the variable display of the special symbol or the normal symbol based on the starting winning or the starting passage of the ordinary symbol is not performed. The starting prize generated when the number of stored starting prizes reaches the upper limit is called an invalid starting prize, and the ball hitting the starting prize is called an invalid starting prize ball. On the other hand, a start winning that occurs in a state where the number of stored starting winnings does not reach the upper limit is called a particularly effective starting winning, and a ball hit with a starting winning is particularly called an effective starting winning ball.

On the left and right sides of the variable display device 4, there are provided passages 8 for guiding ball hitting, which are named warp entrances.
The ball hitting the warp entrance 8 is guided to the warp exit 9 provided above the starting winning opening 10, and is discharged into the game area 3 again and falls. Variable winning ball device 11
The winning openings 21 are provided on the left and right sides of the. In addition, a windmill 19 is provided in the game area 3.

When the shot hit ball has not entered any of the winning openings, it enters the outlet 25 and the hit balls are collected.

FIG. 2 is an overall front view showing a pachinko gaming machine 34 having the gaming board 1 of FIG. 1 and a card unit 35. The card unit 35 is provided with a card available indicator lamp 47, and the card unit 35 can be used only when the card available indicator lamp 47 is lit or blinking. The card unit 35 is installed in a state where it is inserted between a plurality of pachinko gaming machines 34 installed on the gaming machine installation island, and a connection stand direction display indicates which of the left and right gaming machines is connected. Is displayed by the container 49. Then, the player inserts the common card from the card insertion slot 50. Then
The card balance recorded on the common card is read. When the player performs a ball rental operation, the predetermined input and set loan unit amount is reduced from the balance, and the ball rental amount is borrowed in the upper plate 39. It Note that the common card is a prepaid card dedicated to a gaming machine that can be used in common even at game centers nationwide as long as the gaming site is a member of the common card system.

The card unit 35 has a fraction switch 48
The information display device (not shown) of the gaming machine displays information such as a card balance, a balance before insertion of a card, and an error code when an error occurs by pressing the fraction display switch 48. Can be displayed. In the figure, reference numeral 51 denotes a card unit lock, which is configured so that the front side of the card unit 35 can be opened by inserting a predetermined key into the card unit lock 51 and performing an unlocking operation. The pachinko gaming machine 34 is provided with a glass frame 37 that can be opened and closed freely, and the gaming area 3 is visible from the glass plate provided on the glass frame 37. When the player rotates the hit ball operation handle 44, the hit balls stored in the upper plate 39 are hit into the game area 3 one by one.

Left and right speakers 94 and 95 for producing stereo sound effects are provided on the left and right of the upper portion of the game area 3.

Below the upper plate 39, an upper plate punching lever 40 is provided.
The lower plate 41 for storing hit balls discharged from the upper plate 39 by operating the lower plate 41 is provided.
The hit balls stored in (1) can be discharged by operating the lower dish dropout lever 42. In the figure, reference numeral 38 denotes a key for preventing the front frame from being opened and closed, and reference numeral 43 denotes an ashtray used by the player. A frame lamp 45 is provided so as to surround the game area 3. Reference numeral 46 is a lamp composed of an LED, which is used to blink or light up when a big hit occurs to enhance the game effect.

Next, the game features of the pachinko gaming machine 34 will be described in more detail. When the special symbols that are variably displayed on the variable display unit of the variable display device 4 are stopped and displayed in a predetermined combination, a big hit occurs, but there is a high probability (probability fluctuation) in some special symbol combinations that are big hits. It contains a special combination that produces This combination is particularly called a combination of probability variation symbols. When the game is in the high probability state, the probability that a big hit will occur is adjusted to be higher than in the normal state. Further, the probability that the variable display result of the ordinary symbol on the variable display 17 will be a hit is adjusted to be high.

In the pachinko gaming machine 34 shown in the present embodiment, a big hit occurs based on the combination of the stochastic fluctuation symbols, and after a predetermined number of repetition continuation controls are all completed, 1
After the probability change of the second time occurs, and then a big hit occurs, 2
The probability change of the second time occurs. If the big hit that occurred at the first or second probability fluctuation is due to the combination of probability fluctuation patterns, after the big hit, the first time, 2 again
The probability change of the second time occurs. That is, if a big hit due to the combination of probability fluctuation patterns, after the big hit,
At least until a big hit occurs twice, the high probability state is set in the second state, which is disadvantageous to the player who is not subjected to the repeated continuous control. If the combination of symbols that has been a big hit by the time the second probability fluctuation has occurred is not a combination of probability fluctuation symbols, the state returns to the state where no probability fluctuation has occurred, after the repetition continuation control accompanying the big hit has ended.

Also, in this pachinko gaming machine 34, a big hit occurs during the above-mentioned second high probability state, and when the predetermined repeated continuation control ends and the probability returns to a state where it does not change, a normal symbol Control for reducing the variation time (variable display time) of the normal symbol on the display device 17 (hereinafter, variation time reduction control) is performed. The variable time reduction control is continued until the variable display device displays the variable display 60 times after the jackpot state described above is finished. When such a variable time reduction control is performed, the movable piece 16 is frequently opened, so that even if the probability of a big hit is not improved, a big hit is likely to occur in a short time, which is advantageous for the player. . In this way, without directly increasing the probability of a big hit,
A gaming state adjusted so that a big hit is likely to occur in a short period of time is called a normal electric power open state. further,
A state that is neither the normal electric power open improved state nor the high probability state, nor the big hit state (specific game state) is particularly called a normal state.

The fluctuation time (variable display time) of a normal symbol is 30 seconds in a normal state, and 5 seconds in an ordinary power open improvement state in which fluctuation time reduction control is performed.

In the pachinko gaming machine 34, it is not necessary to directly increase the probability of occurrence of a big hit, but to form a general power opening improved state adjusted so that a big hit is easily generated in a short period of time. Although the time reduction control is configured to be performed, other means may be used. For example, in order to facilitate the starting winning to the variable starting port device 14, the opening time extension control is performed so that the opening time of the movable piece 16 that is opened based on the variable stop result of the normal symbol is extended. Alternatively, the number of times of opening of the movable piece 16 is controlled to be increased (for example, the normal state is once and the normal electric open improved state is twice). It may be configured to Alternatively, the ordinary power opening improvement state may be configured by combining the fluctuation time reduction control, the opening time extension control, and the opening number increase control.

Further, a specific symbol called a "lucky number" is included in the symbols constituting the special symbol combination which makes a big hit in the pachinko gaming machine 34 shown in the present embodiment. Normally, a prize ball acquired by the occurrence of a big hit must be temporarily exchanged for a prize or the like, so that the prize ball cannot be directly used for a game. However, when a big hit occurs with a lucky number, the acquired prize ball can be directly used for a game. Such a lucky number causes a big hit and shifts to a specific game state is called a lucky start.

FIG. 3 is a rear view of the pachinko gaming machine 34 and the card unit 35 shown in FIGS. 1 and 2.

A card processor controller (not shown), a card reader / writer controller (not shown), and a unit box controller (not shown) are provided in the card unit 35. The card processor control unit and the interface board 59 are electrically connected to each other, and the card processor control section and the interface board 59 are configured to be capable of transmitting and receiving information to and from each other. Further, the interface board 59 and the payout control board housed in the payout control board box 58 are electrically connected. Further, the interface board 59 and the relay board 61 are electrically connected, and the relay board 61, the game control board 113 housed in the game control board box 54, and the prize ball payout unit 53, respectively. It is electrically connected.

Further, switches of various indicators and various operation buttons provided on the upper plate 39 (see FIG. 2) are connected to the interface board 59.

When a predetermined ball rental amount is input and set in the card unit 35, the set ball rental amount is stored in the card processor controller. If the player inserts a common card into the card insertion slot 50 and performs a ball lending operation, the ball lending amount is supplied into the upper plate 39 and a predetermined unit amount is inserted from the inserted common card. It is repeatedly reduced until is equivalent to the ball lending amount. A unit price sales signal resulting from the reduction of the unit amount is transmitted to the management device, which is the host computer of the game arcade, and is also transmitted to the card issuing company via the terminal box installed in the game arcade. Also,
A unit number, which is the number of the card unit 35, is set in the unit box control section, and the set number is transmitted to the management device and also to the card issuing company via the terminal box. The card reader / writer control unit is a control unit for reading or rewriting the recorded data of the common card inserted from the card insertion slot 50.

The prize ball payout unit 53 is provided with a payout motor (not shown), and the ball guide rail 57b.
Are fed sideways by the rotational force of the payout motor, and the fed balls fall down one by one and are paid out into the upper plate 39. Ball guidance rail 5
Reference numeral 7b is for causing the stored balls in the ball tank 57a to flow down while being aligned in two rows, and a tank ball cutout switch (not shown) and a rail ball cutout switch (not shown) are respectively provided in the two rows of flow paths. Provided, a ball tank 5
It is detected that there is no stored ball in 7a and that there is no flowing ball on the ball guide rail 57b, and the detection signal is input to the payout control board in the payout control board box 58.

Replenishment balls are replenished to the game ball storage tank 57a from a game machine installation island through a replenishing device (not shown). The supply balls supplied to the game ball storage tank 57a are detected by the supply ball detector in the supply device,
Upon detecting that a predetermined number (for example, 10) of replenishment balls have been supplied, a one-pulse detection signal is output from this replenishment ball detector. In response to a ball lending request signal from the card unit 35, the supply balls in the game ball storage tank 57a are not paid out to the upper plate 39, but the hit balls purchased by the player from the ball lender are in the upper plate 39. In the case of a conventional general pachinko gaming machine that puts in a game and is played, an output signal output from the replenishing device is transmitted to the management device, and the management device plays the game based on the transmitted detection signal. The number of disadvantageous spheres that is disadvantageous to the field is detected. However, as in the present embodiment, in the pachinko gaming machine of the system that pays out a part of the stored balls in the game ball storage tank 57a based on the ball lending request signal from the card unit 35, Balls to be rented that do not result in any number of unfavorable spheres for the amusement hall will be supplied to the game sphere storage tank 57a, and the supplied balls will be detected by the replenishment ball leasing detector and will be used as the number of unfavorable balls. As a result of being input to the management device, there arises a disadvantage that the management device cannot accurately detect the number of disadvantageous balls. Therefore, in the pachinko gaming machine 34, a predetermined pulse signal is output from the payout control board before the predetermined number (for example, 10) of prize balls to be paid out based on the winning of a hit ball, and the predetermined pulse signal is output. Is transmitted from the information output terminal 62 to the management device.
With this configuration, a pulse signal is transmitted to the management device only for paying out prize balls accompanying a prize, without outputting a pulse signal as disadvantageous ball number information to the management device with respect to hit ball lending. Then, the management device can collect accurate information on the number of disadvantageous balls.

The game control board 113 formed in the game control board box 54 is an image display device 55 forming the variable display section 5 of the variable display device 4 (see FIG. 1), and information relay of the relay substrate 61. It is connected to the terminal 820 by wiring. On the right side of the back of the game control board box 54, a probability setting switch (not shown) composed of a key switch is provided. This probability setting switch variably sets the probability that the display result when the variable display device 4 is variable stopped will be a combination of specific identification information, that is, the probability that a big hit will occur. The normal position, the setting position, and the confirmation position. The switching operation can be performed at three positions. The probability can be changed by inserting a predetermined key into this probability setting switch and performing a switching operation.According to the number of times of this switching operation,
The jackpot probability can be switched and set in three stages. The probability setting switch may be, for example, a slide switch, a push button switch, a snap switch, a push-pull switch, a rotary switch, a digital switch, or the like, instead of the key switch.

Reference numeral 60 in the drawing denotes a hitting ball unit, which is operated by the player operating the hitting ball operation handle 44,
This is for launching the ball hits in the upper plate 39 one by one into the game area 3. Further, the power supply board 52 is provided with a power switch 56 of the pachinko gaming machine 34. By operating the power switch 56, the power can be turned off and then turned on again, and the game control microcomputer of the game control board 113 can be reset when the power is turned on.

The information relay terminal 820 of the relay board 61 has
Whether or not the big hit information, probability variation information, effective starting information, variation time of the normal symbol is shortened or controlled from the game control board 113, or whether the opening time extension control of the movable piece 16 is performed or not. Various game information related to the game control such as the normal electric power open improvement state information shown is transmitted.
The big hit information input to the information relay terminal 820 is output to the outside of the gaming machine through the information output terminal 62 and transmitted to the management device. Further, the valid start information is externally output from the information output terminal 63, the probability variation information is externally output from the information output terminal 64, and the universal electric open improvement information is externally output from the information relay terminal 830.

Next, the control circuit used for the game control board 113 of the pachinko gaming machine 34 will be described. FIG.
And FIG. 5 is a block diagram showing a configuration of a control circuit of the game control board 113.

Referring to FIGS. 4 and 5, the control circuit is
Basic circuit 66, input circuit 67, LED circuit 68, solenoid circuit 69, address decode circuit 70, periodic reset circuit 71, initial reset circuit 72, information output circuit 7
3, illumination signal circuit 74, CRT circuit 75, lamp circuit 7
6, including a power supply circuit 77.

The basic circuit 66 controls various devices of the pachinko gaming machine according to the control program. Basic circuit 66
Inside, a ROM storing a game control program and the like, a CPU for performing a control operation according to the game control program, a RAM functioning as a work memory of the CPU, an I / O port, And a clock generation circuit. The internal configuration of the basic circuit 66 is omitted here and will be described later.

The input circuit 67 includes a starting ball detector 26 for detecting a ball hitting the starting opening 10 and a specific ball detector 2 for detecting a ball hitting a specific area of the special winning opening.
7, a winning ball detector 28 for detecting a hit ball that has won a special winning opening of the variable winning ball device 11, and a variable starting opening device 1
Starting ball detector 29 for detecting the ball hit in 4
And a passing ball detector 30 for detecting a ball hitting the passing port 13 are connected. The input circuit 67 transmits the detection signal output from each detector to the basic circuit 66. L
In the ED circuit 68, the number display LED of the number display 24,
LED of the starting memory indicator 6, LED for displaying the normal pattern of the variable indicator 17, LED of the passing memory indicator 18
Connected to The LED circuit 68 controls the lighting state of each LED according to the control signal output from the basic circuit 66.

The solenoid circuit 69 is the variable winning ball device 1
1 is a circuit for controlling a solenoid 74 for driving the first opening / closing plate 12 and a solenoid 75 for driving the movable piece 16 of the variable starting port device 14. The solenoid circuit 69 operates the solenoid 74 and the solenoid 75 at a predetermined timing in response to the control signal output from the basic circuit 66. The decorative LED 33 provided in the LED circuit 68 is turned on in synchronization with the operation timing of the solenoid 74. Further, the lamps (LEDs) 31 and 32 provided in the LED circuit 68 blink according to the operation of the solenoid 75.

The address decoding circuit 70 comprises the basic circuit 6
6 is a circuit that decodes the address signal sent from 6 and outputs a signal for selecting any one of the ROM, RAM, I / O port, etc. included in the basic circuit 46.

The regular reset circuit 71 is a circuit for giving a reset pulse to the basic circuit 66 periodically (every 2 msec, for example) to repeatedly execute a predetermined game control program from the beginning.

The initial reset circuit 72 is a circuit for resetting the basic circuit 66 when the power is turned on. In response to the initial reset pulse sent from the initial reset circuit 72, the basic circuit 66 initializes the pachinko gaming machine.

The information output circuit 73 is a circuit for outputting various game information to the relay board 61 based on the data signal given from the basic circuit 66. In the game information, the big hit information for indicating the occurrence of the big hit, the probability variation information for indicating the occurrence of the probability varying state, and the variable display of the variable display device 4 among the hit balls winning the starting opening 10 or 15 are effective. The effective start information relating to the start winning to be performed by the user, the general electric open improvement state information for indicating the occurrence of the general electric open improvement state described above, and the like are included.

The illumination signal circuit 74 transmits the lamp control data D0 to D3 to an illumination board (not shown) which controls the lighting state of a plurality of types of illumination (not shown) provided in the gaming machine. The lamp control data D <b> 0 to D <b> 3 are data for controlling the lighting state of the electric decoration, and specify the lighting state of the electric decoration during a big hit or a high probability state. Note that the lamp control data common is a common line signal.

The CRT circuit 75 is a circuit for driving and controlling the image display device (CRT display) 55 included in the variable display device 4 in accordance with the control signal output from the basic circuit 66. Among the signals transmitted from the CRT circuit 75 to the CRT display 55, CD0 to CD0 as command signals are included.
The CD 7 and the initialization signal INT are included. Furthermore, the signal lines connecting the CRT circuit 75 and the CRT display 55 include a + 5V line for supplying power, a + 12V line, and a GND line which is a ground signal line.

The lamp circuit 76 includes a frame lamp 45 and an LED.
46 is connected. The lamp circuit 76 controls the lighting state of each lamp according to the control signal output from the basic circuit 66.

The power supply circuit 77 is connected to an AC power supply of 24V AC, and is + 30V, + 12V, + 5V, + 12.5V.
Is a circuit for supplying a plurality of types of DC voltage to each circuit. The + 30V DC voltage generated from the power supply circuit 77 is output to the image display device (CRT display) 55. Further, the DC voltage of + 12.5V generated from the power supply circuit 77 is output to the program writing circuit 103 described later for writing the game control program.

The CRT display 55 described above includes a display control board (not shown). On this display control board, an image display control circuit for controlling display of an image displayed on the variable display section 5, and control of sounds such as sound effects output from the left channel speaker 94 and the right channel speaker 95. And a sound control circuit for performing. next,
The control circuit formed on the display control board will be described in detail.

FIG. 6 is a block diagram showing a control circuit formed on the display control board. The image display control circuit and the sound control circuit formed on the display control board include a connector 78 and a CPU 79 as common components. Further, the sound control circuit includes a voice ROM 80, a voice synthesis circuit 81, an amplifier 82, connectors 83, 84, 8
7, right channel amplifier 85, left channel amplifier 8
6, a left channel speaker 94, and a right channel speaker 95 are included. In addition, the image control circuit has a W
A (work) RAM 90, a mask ROM 91, a video color encoder (VCE) 88, a video display controller (VDC) 92, a V (video) RAM 93, and a connector 89 are included. In these control circuits, the CPU 79 connects the basic circuit 6 via the connector 78.
6, the VCE 88 is connected via a connector 89 to a CRT display circuit (not shown) in the CRT display 55, and an image is displayed on the variable display section 5 by the CRT display circuit.

The CPU 79 receives a command for image display and a command for voice control from the basic circuit 66 via the connector 78, and performs image display control and voice control. Image display control is performed as follows.
When the CPU 79 receives a command for displaying an image,
Based on the image display program and data stored in the mask ROM 91, image display is performed using the WRAM 90 as a work area. The procedure is as follows.

The CPU 79 reads the display data from the mask ROM 91 in accordance with the received command, and VDC
Give to 92. At this time, the CPU 79 controls not only the image data but also the coordinates for display and VR such as scrolling.
Data for AM control is also provided to the VDC 92. The VDC 92 receives data for image display, allocates the data to the VRAM 93, and processes the data such as color and brightness. The VDC 92 gives the image display data thus created to the VCE 88. V
The CE 88 converts the data given from the WRAM 90 into a composite sync signal for displaying on the variable display unit 5, and gives it to the CRT display 55 via the connector 89.

Sound control is performed as follows.
The command for voice control sent from the basic circuit 66 via the connector 78 is given to the voice synthesis circuit 81 via the CPU 79. The voice synthesis circuit 81 changes the voice ROM 80 from the ADPCM in response to the given command.
After reading (Adaptive Differential Pulse Code Modulation) data and playback control data, and reading the right channel and left channel data in accordance with a given command and according to the read playback control data,
The voices are synthesized, and finally the left and right analog voice signals are given to the amplifier 82.

The amplifier 82 amplifies the left and right analog audio signals and supplies the amplified analog audio signals to the right channel amplifier 85 and the left channel amplifier 86 via the connectors 83 and 84. In the right channel amplifier 85 and the left channel amplifier 86, the given analog audio signals are sequentially amplified, and the amplified analog audio signals are supplied to the right channel speaker 95 and the left channel speaker 94 via the connector 87, respectively. give. As a result, the right channel speaker 95
Also, stereo sound based on various sounds including natural sounds is reproduced from the left channel speaker 94, and a predetermined sound effect is generated during variable display by the variable display device 4 and when a big hit occurs.

FIG. 7 is an explanatory diagram showing the types and contents of the random counters used in the pachinko gaming machine 34 of this embodiment. The random counter is a counter that counts random numbers used for the variable display control of the special symbol of the variable display device 4. In the present embodiment, WC
RND1, WC RND L, WC RND C, W
Five types of random counters, C RND R and WC RND RCH, are used. The values of these random counters are read at a predetermined timing during the pachinko game,
The variable display operation of the variable display device 4 is controlled based on the value. The reading process of the count value of the random counter
The CPU provided inside the basic circuit 66 is a control ROM.
It is executed according to the control program.

WC RND1 is a jackpot determination random counter for determining in advance whether or not a jackpot should be generated, as a result of the variable display of the special symbols on the variable display device 4. The WC RND1 has three types of counter value ranges of setting 1 to setting 3, which are determined by the setting operation of the probability setting switch described above. In setting 1, 0-293
, The counter value is incremented by 1 every 0.002 seconds. Then, when it is counted up to the upper limit, it is configured to count from 0 again. Note that 0.002 seconds is an interval at which the control program is repeatedly executed in the basic circuit 66 in response to the periodic reset signal output from the periodic reset circuit 71. In the case of the setting 2, the counter value is counted up in the range of 0 to 377 as in the case of the setting 1. In setting 3, the counter value is incremented in the range of 0 to 407 as in setting 1.

WC RND L, WC RND C, W
C RND R is a type of special symbol that is stopped and displayed in each of the left, center, and right symbol display areas when it is determined in advance that a non-big hit is to be made as a result of the variable display of the special symbol on the variable display device 4. Is a random counter. The count range of WC RND L is 0-12. The count range of WC RND C is 0 to 15. The count range of WC RNDR is 0-12. The counter value of the WC RNDL is incremented by one every 0.002 seconds. The WCRND C counter value is incremented by one every 0.002 seconds.
The remaining time of the interrupt processing operation 6 is counted up. The counter value of WC RND R is WC RND
When C is carried, it is incremented by one. W
C RND RCH is a random counter for determining the specified reach operation number for designating a predetermined reach operation from a plurality of reach operations. "Reach" here
This means that two hit symbols are stopped and displayed together on the variable display unit 5 of the variable display device 4, and a big hit occurs when one more hit symbol is stopped and displayed.
Among the types of reach determined by the WC RND RCH, there is also a procedure in the case of a final jackpot combination. The counter value of the WC RND RCH is incremented by one every 0.002 seconds, and is incremented by one by using the remaining time of the interrupt processing operation of the basic circuit 66.

8 to 10 show a random counter W.
It is a flow chart which shows the control procedure for deciding beforehand whether a big hit should be generated by the value of CRND1. Referring to the figure, it is determined whether the result of the variable display of the special symbol on the variable display device 4 is a big hit or a non-big hit, and further, the left symbol and the middle symbol stopped and displayed on the variable display unit 5. The procedure for determining the type of the right symbol will be described.

In FIG. 8, the aforementioned jackpot occurrence probability is set to 1
6 is a flowchart when it is set to. WC
If the value of RND1 is "7", it is a big hit, and if it is other than "7", it is a big hit. In the high probability state, if WC RND1 is any of "7", "11", and "79", it is a big hit, and if it is a value other than these values, it is a big hit. When it is determined that a big hit is to be made, the type of a special symbol for generating a big hit is determined by subsequently determining the value of WC RND L.

On the other hand, when it is determined that the jackpot is not the big hit, the WC RNDL, WC RND
By determining the values of C and WC RND R, the types of the left symbol, the middle symbol, and the right symbol to be stopped and displayed are determined. In addition, in the case other than the big hit, the combination of the determined stop symbols happens to be a big hit combination, if the value of WC RND C is incremented by "1", it is forcibly removed. Adjust so that it will stop.

FIG. 9 is a flowchart when the jackpot occurrence probability is set to setting 2. In the case of setting 2, similarly to setting 1, if the value of WC RND1 is “7”, it is determined in advance that it is a big hit, and if it is other than “7”, it is a big hit. In the high probability state, unlike the setting 1, "7", "11", "79", "30"
It is determined in advance that any of the values of “7”, “311”, “331”, and “373” is a big hit, and if it is a value other than these values, it is a big hit. After it is determined whether to make a big hit or something other than a big hit, the display selection control method of the stop symbol is the same as the contents described in the setting 1 of FIG.

FIG. 10 is a flowchart when the jackpot occurrence probability is set to setting 3. In setting 3, similarly to setting 1, if the value of WC RND1 is “7”, it is determined in advance that it is a big hit, and if it is other than “7”, it is a big hit. In the probability fluctuation state, unlike the setting 1, the value of the WC RND1 is “7”,
“11”, “79”, “307”, “311”, “33”
It is determined in advance that if any one of the values “1”, “373”, and “401” is a big hit, if the value is other than these values, it is not a big hit. After it is determined in advance whether to make a big hit or something other than a big hit, the display selection control method of the stop symbol is the same as the contents described in the setting 1 of FIG.

From the above, the probability of a big hit being set to 1/294 in setting 1 in the normal state,
In setting 2, 1/378 is set, and in setting 3, 1
It is set to / 408. On the other hand, the probability of a big hit occurring in the high probability state is set to 3/294 in setting 1, to 7/378 in setting 2, and
In setting 3, it is set to 8/408.

FIG. 11 is an operation explanatory view for explaining the generation operation of the high probability state. Here, the condition device shown in FIG. 11 is configured by a game control program stored in the ROM in the basic circuit 66, and when the specific game state (big hit state) is reached, the stopped state is changed to the activated state. The operation state is maintained until switching and the jackpot control is completed. If the display result of the variable display device 4 at the time of occurrence of this special game state is a combination of special symbols, the state is controlled to a high probability state in which the probability of occurrence of the subsequent big hit is improved. Then, if a big hit occurs in the high probability state, the big hit control is started again, and the condition device is activated. If the display result of the variable display device 4 at the time of occurrence of the second big hit is a combination of special symbols that make a big hit but not a combination of probability-variable symbols, a high probability is obtained even if the second big hit control is ended. It does not become a state. In FIG. 11, if the combination of special symbols is any one of “1”, “3”, “5”, “7”, and “9”, the combination of probability fluctuation symbols that is in a high probability state Is shown. Then, the first and second high-probability states occur based on the occurrence of the big hit due to the combination of the probability variation symbols.

FIG. 12 is a view showing special symbols displayed on the variable display device 4. Variable display unit 5 of variable display device 4
The left symbol displayed on the left side, the middle symbol displayed on the center, and the right symbol displayed on the right side are respectively shown. And, the numbers shown on the left side of FIG. 12 are numbers representing the symbol positions, and the symbols constituting the intermediate symbols are assigned numbers from 00 to 15, respectively. The middle pattern is a number pattern of "1" to "9" and "A" to
It is composed of the letter "G". On the other hand, the symbols constituting the left symbol and the right symbol are composed of numeral symbols “1” to “9” and alphabet symbols “A” to “D” in order from the symbol position of 00 to 12. ing. These symbols are variably displayed on the variable display portion 5, and as a result of the variable display, if the left symbol, the middle symbol, and the right symbol are all stopped at the same symbol, a big hit occurs.

In this pachinko gaming machine 34, two types of ROMs are used for storing game control programs: ROM used for inspection of the game control program and ROM used for game control. Board 1
13. Those two kinds of ROM
Are included in the basic circuit 66.

FIG. 13 is a block diagram showing a detailed structure of the basic circuit 66. The basic circuit 66, CPU96 for game control, RAM97 for game control, R for game control
OM98, clock control circuit 99 for game control, CPU100 for security check, ROM101 for security check, RAM for security check
102, a program writing circuit 103, and a ROM 117 for inspection are included.

The CPU 96, the RAM 97, the ROM 98, the clock generation circuit 99, the CPU 100, the ROM 101, and the RAM 102 are integrally formed in one semiconductor chip 116. That is, the semiconductor chip 11
Reference numeral 6 constitutes a so-called one-chip microcomputer. This semiconductor chip 116 is attached to the game control board 113 in a form of being housed in one semiconductor package as a one-chip microcomputer.

Further, the program write circuit 103 and the RO
The M117 and the M117 are individually attached to the game control board 113 in the form of being housed in separate semiconductor packages. In particular, the ROM 117 is configured to be attachable / detachable to / from the game control board 113 in order to be tested by the game control program. Specifically, the ROM 117
Can be pulled out and reinstalled by hand.

A power supply voltage for operation is supplied to the basic circuit 66 from a power supply circuit 77. In particular, a power supply circuit 77 supplies a power supply voltage of 12.5 V to the program write circuit 103 for writing a game control program.

A game control program is stored in advance in the ROM 117. The game control program stored in the ROM 117 is read at the first power-on after the pachinko gaming machine 34 is installed in the game hall, and is read and stored in the ROM 98 via the program writing circuit 103. The ROM 98 does not store the game control program at the stage before the game control program is supplied from the ROM 117. ROM in this way
When the game control program transferred from 117 to the ROM 98 and stored therein is executed by the CPU 96, game control by the CPU 96 is performed.

The ROM 117 is also used for checking the contents of the game control program. The inspection is an inspection for checking whether or not the contents of the game control program can carry out a healthy game which has passed a certain standard. The inspection is performed, for example, after the pachinko gaming machine 34 is installed in the game hall. In the inspection, the ROM 117 is removed from the game control board 113 by the inspector, and the stored game control program is read out and inspected, and then mounted on the game control board 113 again. To be

As described above, since the ROM 117 is easily removably attached on the game control board 113, the pachinko gaming machine 34 can easily inspect the game control program.

The CPU 96, RAM 97, ROM 98, and clock generation circuit 99 are used for game control. That is, the CPU 96 controls the clock generation circuit 9
It operates by receiving an operation clock signal from 9, and in the operation, it reads and executes a game control program from the ROM 98, and uses the RAM 97 as a work memory to perform the game control as described above.

The CPU 100, the ROM 101, and the RAM 102 form a security circuit 112. The security circuit 112 has a program abnormality determination function of checking the security of the game control program, and further transfers the game control program from the ROM 117 to the ROM 98 via the program writing circuit 103, and the game control program is transferred to the game control program. ROM9
It also has a program write control function for storing (writing) in 8.

ROM 101 stores a program for determining a program abnormality and controlling program writing. The RAM 102 is used as a work memory of the CPU 100. CPU100 is ROM1
The program stored in 01 is read out and the RAM 10
Using 2 as a work memory, the program writing process and the program abnormality determining process are appropriately performed. The contents of these processes will be described later.

CPU 100 gives a program output instruction to ROM 117 and a write instruction to program writing circuit 103 when performing a program writing process. The ROM 117 outputs the stored game control program to the program writing circuit 103 in response to receiving the program output command. The program writing circuit 103 responds to the reception of the write command with R
ROM98 the game control program output from the OM
Write to.

From the program write circuit 103 to CP
U102 is supplied with a write state signal indicating by a signal level whether the game control program is being written in the ROM 98 or the writing is finished. The CPU 100 determines whether or not the writing of the game control program by the program writing circuit 103 is completed based on the writing state signal.

Further, the CPU 100 sends the address of the game control program currently being executed from the CPU 96 (ROM 9
Address information indicating the address of the storage area 8). Then, the CPU 100 is the CPU 9
It is determined whether the address indicated by the address information received from 6 is within a predetermined address range used by the regular game control program, and if the address is not within the predetermined address range, the game control program Is considered to have been tampered with (remodeled).

When it is determined that the address information from CPU 96 is not within the predetermined address range, CPU 100 gives a stop instruction to clock generating circuit 99 to stop the operation of clock generating circuit 99. When the operation of the clock generation circuit 99 is stopped in this way, CP
U96 stops and the execution of game control by the basic circuit 66 is stopped. That is, in that case, the game control function is stopped.

FIG. 14 is a flowchart showing the processing contents of the processing executed by the CPU 100. In FIG. 14, (a) shows the program writing process, and (b) shows the program abnormality determination process.

First, the program writing process will be described. Referring to FIG. 14A, first, at step S (hereinafter, simply referred to as S) 1, is it the first (first) power-on time of the pachinko gaming machine 34 after being installed in the game hall? It is determined whether or not. If it is determined that it is not the first time the power is turned on, this program writing process ends. on the other hand,
If it is determined that the power is turned on for the first time, the process proceeds to S2.

In S2, the ROM1 called an external ROM
Processing for giving a program output command to 17 is performed.
As a result, the game control program stored in advance is read from the ROM 117 and the program writing circuit 10 is read.
3 given. Next, in S3, a process of giving a write command to the program writing circuit 103 is performed. As a result, the program writing circuit 103 writes the game control program provided from the ROM 117 in the ROM 98.

Next, in S4, the program write circuit 1
By checking whether or not the write state signal given from 03 indicates the write end state, it is determined whether or not the writing of the game control program from the program write circuit 103 to the ROM 98 is finished. To be judged. In S4,
The program writing process is terminated after the writing of the game control program to the ROM 98 is completed.

Next, the program abnormality determination processing will be described. Referring to (b) of FIG. 14, first, by S11,
A process of reading address information (address of the game control program currently being executed) from the CPU 96 is performed. Next, in S12, a process of collating the read address information with the predetermined address range determined in advance is performed.

Here, the ROM 101 stores a range of predetermined addresses that can be taken by the regular game control program (game control program stored in the ROM 117 in advance). The CPU 100, in S12,
The range of the predetermined address and the address information read from the CPU 96 are compared and collated.

The reason for performing the process of collating the address of the game control program currently being executed with the predetermined address range is as follows. That is, the range of addresses that the regular game control program can take is within a predetermined address range. on the other hand,
When the game control program is illegally tampered with by a person who illegally modifies the game, an unauthorized program is generally added to the legitimate game control program. That is, when such an illegal game control program is created, an illegal program is placed in an address outside the range of addresses used by the regular game control program (addresses exceeding the upper limit of the regular address). Is added.

Therefore, since the illegally tampered game control program uses an address in a range beyond the range of addresses that can be taken by the regular game control program, the address of the currently executed game control program is It exceeds the upper limit value of the address that can be taken by a predetermined regular game control program. Therefore, by comparing and collating the address of the game control program currently being executed by the CPU 96 with a predetermined regular address range, the game control program currently being executed has been tampered with illegally. It is possible to judge whether or not it is a program.

After the address collation is performed in S12, the process proceeds to S13, and as a result of the address collation in S12, the address information is within the upper limit value of the predetermined address range (the address range of the regular game control program). It is determined whether or not. If it is determined by S13 that the address information is within the upper limit, it is determined that the game control program that is currently being executed is a regular game control program, and this program abnormality determination processing ends. On the other hand, S
When it is determined by 13 that the address information is not within the upper limit value, it is determined that the game control program currently being executed is a game control program that has been tampered with illegally, and S
Proceed to 14.

At S14, a process of giving a stop instruction to clock generating circuit 99 is performed. As a result, the operation of the clock generation circuit 99 is stopped and the supply of the clock signal to the CPU 96 is cut off. As a result, the operation of the CPU 96 is stopped and the game control function is stopped. After that, this program abnormality determination processing ends.

The following effects can be obtained by performing the program writing process described above. ROM for inspection
If the game control program is written and stored in 117 beforehand, the game control program is automatically read (written) and stored in the game control ROM 98 at the first power-on. . Therefore, in this case, the work for writing the program can be simplified as compared with the case where the game control program is individually written and stored in the ROM 117 and the ROM 98. Further, it becomes easy to unify the contents of the program between the game control program stored in the inspection ROM 117 and the game control program stored in the game control ROM 98.

Further, the following effects can be obtained by performing the above-described program abnormality determination processing. When the game control program stored in the game control ROM 98 is tampered with illegally, the security circuit 11
By the function of 2, the generation of the clock signal is stopped and the CP
The function of game control by U96 is stopped. For this reason,
When the game control program is illegally tampered with due to illegal replacement of the game control ROM 98, the game control is not performed, and thus the game control by the illegally tampered game control program is performed. Can be prevented from executing. As a result, it is possible to prevent unauthorized modification of the game control program as much as possible. Such an effect is particularly effective in discovering an unauthorized alteration act in the case of performing a sophisticated unauthorized alteration action in which it is difficult to visually identify that an unauthorized alteration has been performed.

Two types of ROMs, a ROM 117 for inspection and a ROM 98 for game control, are provided for storing the game control program, and the inspection ROM 117 can be attached to and detached from the game control board 113. By configuring and forming the game control ROM 98 integrally with the game control CPU 96 and the like, the following effects can be obtained.

ROM 98 for game control C for game control
By integrally forming with the PU 96 or the like, it is possible to make it extremely difficult to illegally modify the game control program actually used for game control. The reason why illegal modification of the game control program can be made extremely difficult is as follows, for example. That is, in order to illegally modify the game control program stored in the game control ROM 98, the semiconductor chip 116, which is a one-chip microcomputer, is removed and the ROM 9 is used.
It is necessary to read out the game control program stored in 8, tamper with the program, and further store the tampered game control program in the ROM 98.
However, even if such illegal modification is performed, it is extremely difficult to illegally modify the game control program stored in the ROM 98 because the ROM 98 cannot be removed from the semiconductor chip 116 by itself.

Further, even if the game control program stored in the ROM 98 is illegally modified, it is found that the game control program is illegally modified by the above-described program abnormality determination processing. In this pachinko gaming machine 34, it is impossible to illegally modify the game control program and perform the game control by the illegally modified game control program.

C in the security circuit 112
When it is determined that the game control program has been tampered with by the PU 100, the control for stopping the generation of the clock signal is performed as shown in S14. In addition to this, in such a case, You may make it control which alert | reports that the program for game control was falsified illegally. Such notification may be performed by displaying on the variable display portion 5 of the variable display device 4,
Alternatively, the sound may be generated from the left channel speaker 94 and the right channel speaker 95. Further, such notification may be performed by both such display and sound generation. Further, the method is not limited to the stop of the clock signal, and any method capable of preventing the CPU 96 from operating may be used.

Next, the structure of the ROM 98 for game control will be described. FIG. 15 shows the ROM 98 shown in FIG.
FIG. 3 is a block diagram showing the configuration of FIG. In (a) of FIG. 15, a state where the game control program is stored (written) in the ROM 98 is shown, and (b) in the figure.
Shows the state after the storage (writing) of the game control program in the ROM 98 is completed.

Referring to FIG. 15A, the ROM 98
Has a large number of lead pins for input and output. Among these lead pins, a program writing lead pin 105 used for writing a game control program, a ground lead pin (earth pin) 109,
Also, a program read lead pin 110 for outputting the game control program to the CPU 96 is included. Further, the switching circuit 10 is provided inside the ROM 98.
6, a storage unit 107 and a voltage detection circuit 108 are provided.

The storage unit 107 is composed of a memory array for storing information, and stores information such as a control program. The switching circuit 106 switches the transmission state of the game control program input from the program writing lead pin 105 to either one of the state of transmitting to the storage unit 107 and the state of transmitting to the ground lead pin 109. Circuit, and is composed of, for example, a changeover switch circuit. Depending on the switching state of the switching circuit 106, the game control program input from the program writing lead pin 105 is transmitted to the storage unit 107 or the ground lead pin 109 via the switching circuit 106. To be done.

The voltage detection circuit 108 detects (detects) the voltage applied to the program write lead pin 105 at the time of inputting (at the time of writing) the game control program in the program write processing described above. The voltage detection circuit 108 is a switching circuit 1 when the voltage applied to the program write lead pin 105 is lowered at the end of inputting the game control program.
A control signal is sent to the control circuit 06 to switch the signal transmission path of the switching circuit 106 from the transmission path to the storage unit 107 to the transmission path to the ground lead pin 109.

The switching circuit 106 is set so that the signal transmission path becomes the transmission path to the storage section 107 side in the initial state where the game control program is not input. Then, during the input of the game control program in the manufacturing stage, the program write lead pin 10
Since the voltage is applied to 5, the voltage detection circuit 108 does not give the control signal to the switching circuit 106. For this reason, the switching circuit 1 during the input of such a game control program.
06 is in a state of transmitting the control program input from the program writing lead pin 105 to the storage unit 107. This state is shown in FIG.

When the input of the game control program in such a program writing process is completed, no voltage is applied to the program writing lead pin 105. In that case, the voltage detection circuit 108 detects that the applied voltage has become equal to or lower than a predetermined value, and the voltage detection circuit 108 supplies a control signal for switching the signal transmission path to the switching circuit 106. In response to the control signal, switching circuit 106 switches the transmission path of the input signal from the transmission path to storage unit 107 to the transmission path to ground lead pin 109. The state is shown in FIG.

The voltage detection circuit 108 is provided with the switching circuit 10 once.
After applying the control signal to 6, the control signal is not output.
Therefore, the transmission path of the switching circuit 106 is temporarily switched to the side of the ground lead pin 109, and then the storage unit 107.
It does not switch to the transmission path to the side of.

Therefore, the ROM 98 is constructed so that the contents of the game control program cannot be tampered with illegally after the game control program is once stored from the ROM 117 via the program writing circuit 103. . As a result, the ROM 98 can prevent the alteration of the program by an unauthorized person by itself.

In this pachinko gaming machine 34, the game control board 113 is a box-shaped game control board box 54.
Is housed inside. The configuration of the game control board box 54 will be described below.

In this type of pachinko gaming machine, the ROM is inspected by the inspector once after the gaming machine is installed in the game hall. In this pachinko gaming machine 34, the ROM 117 for inspection is inspected in such ROM inspection.

The game control board box 54 is initially sealed when installed in the game hall. Then, the game control board box 54 is opened once at the time of the inspection of the ROM by the inspector, and is sealed again after the inspection is completed. After the inspection of the ROM is completed, it is desirable that the game control board box 54 is in a state in which it is difficult to open it, in order to prevent unauthorized modification of the ROM and the like.

However, the conventional game control board box is
The structure is such that it can be opened and closed easily, and even after the inspection of the ROM is completed, it is simply sealed with a sealing paper and can be easily opened by peeling off the sealing paper. For this reason, the conventional game control board box can easily be illegally modified, and if a forged seal is put on after the illegal modification such as ROM replacement is performed, it is illegal. The fact that the remodeling was done was hard to find.

In order to prevent such illegal modification, it is desirable that the game control board box has a structure that is as difficult to open as possible after being opened once during inspection of the ROM in the game hall. The game control board box 54 of the pachinko gaming machine 34 has a structure in which it is difficult to open after opening once in order to prevent such unauthorized modification.

FIG. 16 is an exploded perspective view of the game control board box 54. The game control board box 54 includes a box body 200, a box back surface cover portion 209, and a box body cover portion 201. Box body 2
00 has a box shape having an opening at the top. The box back cover portion 209 is a plate-shaped member made of synthetic resin. The box body cover 201 is a plate-shaped member having an opening in a part thereof, and a plate-shaped R is provided in the opening.
The OM cover part 202 is fitted. A detailed description of these will be given later.

The box back cover portion 209 is attached to the bottom surface of the box body 200. Board 11 for game control
3 is mounted on the box back cover 209 in the box body 200. Game control board 113
Is fixed to the bottom surface of the box main body 200 by screws via the box rear surface cover portion 209.

On the game control board 113, a semiconductor chip 116 constituting a one-chip microcomputer,
The program write circuit 103 and electric parts such as the ROM 117 are attached. The program writing circuit 103 and the semiconductor chip 116 constituting the one-chip microcomputer are mounted on the game control board 113 by soldering. Further, the ROM 117 is
As described above, the game control board 113 is easily and detachably attached.

RO mounted on the game control board 113
A sealing paper 210 is attached on the M117. This sealing paper 210 has game control board 11 at both ends.
It is pasted on top of 3. With this sealing paper 210,
The ROM 117 mounted on the game control board 113 is sealed.

As described above, the seal paper 2 is stored in the ROM 117.
Since 10 is attached, if the sealing paper 210 is removed without a valid reason, it can be considered that the ROM 117 has been illegally removed.

A box body cover 201 is mounted on the opening of the box body 200. A plurality of sealing papers 206 are attached to the box main body cover 201 and the box main body 200.
By 06, the game control board box 5 with the box body cover 201 attached to the box body 200
Sealing is done from the surface side of 4. Further, a plurality of internal sealing papers 205 are attached to the back surfaces of the box body cover 201 and the ROM cover 202. Thereby, the box body cover portion 201 and the ROM cover portion 202 are sealed from the back surface side of the game control board box 54.

The game control board box 54 thus configured is attached and fixed to the box attachment board 208 fixed to the mechanism plate 600 provided on the back surface of the pachinko gaming machine 34. The attachment is the box body 20
A pair of sliding portions 200a (one of which is omitted in the drawing) formed on the bottom portion of 0 meshes with a pair of guide rails 208a formed on the surface of the box mounting board 208. This is done by sliding and mounting.

FIG. 17 is a plan view of the game control board box 54 according to the first embodiment. The game control board box 54 is a box-shaped box body 2 having an opening at the top.
00 and a box body cover portion 201 attached to the opening on the box body. Box body 200
Is formed of an opaque synthetic resin. On the other hand, the box body cover portion 201 is formed of a plate-shaped transparent synthetic resin. The box body cover part 201 has an opening partly, and a plate-like ROM cover part 202 made of a transparent synthetic resin is fitted into the opening part. A ROM 117 for inspection and the like are housed in the box body 200 below the ROM cover 202. The box body 200 and the box body cover 201 may be transparent or opaque.

The box body 200 and the box body cover portion 201 are adhered by a strong adhesive,
It is difficult to open it. Further, a plurality of sealing papers 206 are attached to the box main body 200 and the box main body cover portion 201, and are sealed by the sealing papers 206. The joint between the box body 200 and the box body cover portion 201 is not limited to this, and may be welding or rivets such as blind rivets described below. Further, inside the box body 200, a plurality of internal sealing papers 205 are attached between the box body cover portion 201 and the ROM cover portion 202, and the ROM cover portion 202 and the box body cover portion 201 are separated from each other. It is sealed from the inside. The sealing with the sealing paper 206 and the internal sealing paper 205 is attached at the manufacturing stage of the pachinko gaming machine 34, and also at the stage where the pachinko gaming machine 34 is installed in the game hall. .

The ROM cover portion 202 has a rectangular shape, and two long first locking hooks 203 are provided on each long side thereof.
Is provided. Further, one second locking hook 204 is provided on each long side and each short side thereof. The first locking hook 203 is the box body cover portion 20 before the inspection of the game control ROM (production stage).
It is used to lock the ROM cover portion 202 with respect to 1. The second locking hook 204 replaces the first locking hook 203 after the ROM inspection is completed, and replaces the first locking hook 203 with the ROM cover portion 202 with respect to the box body cover portion 201.
Used to lock the.

FIG. 18 is a perspective view showing a state in which the ROM cover portion 202 of the game control board box 54 according to the first embodiment is attached and a state in which the ROM cover portion 202 is removed. 18A shows a state in which the ROM cover portion 202 is attached, and FIG. 18B shows a state in which the ROM cover portion 202 is removed. With reference to FIG. 18A, the first locking hooks 203 and the second locking hooks 204 are provided so as to project on one surface of the ROM cover portion 202. Part of the first locking hook 203 is a claw portion protruding outward from the outer edge of the ROM cover portion 202,
This claw is locked to the box body cover 201.

The second locking hook 204 has a claw at its tip. The claw portion of the second locking hook 204 has a shape in which a part of the claw portion projects outward from the outer edge of the ROM cover portion 202, and the degree to which the claw portion projects outwardly decreases toward the tip thereof, so-called. It has a tapered shape. The claw portion of the second locking hook 204 is formed at a position farther from the surface of the ROM cover portion 202 than the claw portion of the first locking hook 203. Therefore, even when the claw portion of the first locking hook 203 is engaged with the upper surface of the box body cover portion 201, the claw portion of the second locking hook 204 does not have the upper surface of the box body cover portion 201. Does not engage.

The ROM cover portion 202 has the first locking hook 203 and the second locking hook 2 at the manufacturing stage.
It is fitted into the box body cover portion 201 with the surface provided with 04 facing upward (front). In that case, the ROM cover 202 is locked to the box body cover 201 by the first locking hook 203. Then, when the ROM 117 is inspected after being installed in the game hall, after the first locking hook 203 is cut by a nipper or the like,
The ROM cover part 202 is removed from the box body cover part 201. In that case, the internal sealing paper 205
Is peeled off.

After the inspection of the ROM 117 is completed,
As shown in FIG. 18B, the ROM cover unit 20
2 is reattached to the box body cover 201 with the front and back reversed and the back side up. That is, RO
At the time of reattaching, the M cover part 202 is fitted into the box body cover part 201 with the surface provided with the second locking hooks 204 facing downward.

When the ROM cover part 202 is turned upside down and fitted into the box body cover part 201, a portion of the opening of the box body cover part 201 facing the second locking hook 204 is extended by a predetermined width. Part 2
08 is formed. The projecting portion 208 has a shape that projects into the opening of the box body cover 201. On the other hand, in the ROM cover part 202, an overhang part 209 for engaging with the overhang part 208 on the side of the box body cover part 201 is formed in the vicinity of the part where the second locking hook 204 is provided. . The projecting portion 209 projects outward from the outer edge of the ROM cover 202.

Therefore, when the ROM cover section 202 is turned upside down and fitted into the box body cover section 201, the overhanging section 209 contacts the overhanging section 208, whereby the ROM cover section 202 is moved to the box body cover section 201. Locked against. When the ROM cover part 202 is turned over and fitted into the box body cover part 201, the seal paper 2 for reattachment from the front side is provided between them.
07 is affixed and sealed.

When the ROM cover section 202 is turned over and fitted into the box body cover section 201, the second
Since the locking hook 204 is tapered toward the tip, it is easy to fit the ROM cover part 202 into the box body cover part 201. However, after the ROM cover part 202 is once fitted into the box body cover part 201, when the ROM cover part 202 is tried to be removed, the claw part of the second locking hook 204 is attached to the back surface of the box body cover part 201. Since it abuts and is locked, it becomes difficult to remove. Further, even if the first locking hook 203 is regenerated with an adhesive or the like, it is extremely difficult to apply the already peeled internal sealing paper 205.

Therefore, this game control board box 5
4 can easily remove the ROM cover part 202 once when the ROM 117 is inspected, but the ROM cover part 202 is attached again after the inspection is completed,
It is difficult to remove the cover portion 202. Therefore, this game control board box 54, RO
It is possible to prevent the illegal modification action performed by opening the game control board box 54 after the inspection of M117.

Second Embodiment Next, a second embodiment will be described. In the second embodiment, another example of the game control board box will be described. FIG. 19 is a plan view of the game control board box according to the second embodiment. With reference to FIG. 19, the game control board box 112 includes a box-shaped box body 300 having an opening at the top and a plate-shaped box body cover portion 301 attached to the opening on the box body 300. Contains. Since the box body 300 and the box body cover portion 301 are joined by the same method as that of the first embodiment, the description thereof will be omitted. Inside the box body 300, a game control board to which the ROM 117 and the like are attached is stored. The materials of the box body 300 and the box body cover portion 301 are the same as the corresponding materials in the game control board box 54 according to the first embodiment described above.

A part of the box body cover portion 301 is
A rectangular notch is formed. The ROM 117 is located inside the box main body 300 below the cutout. A slide guide 303 having a predetermined width is provided along the outer edge portion of the cutout portion of the box body cover portion 301.

A plate-like ROM cover portion 302a made of synthetic resin is fitted into the notch of the box body cover portion 301 along the slide guide 303.
That is, the ROM cover portion 302a is fitted into the cutout portion of the box body cover portion 301 by being slid inward from the outside of the game control board box 112 along the slide guide 303.

The ROM cover portion 3 fitted in this way
On the side surface side of the game control board box 112 in 02a, a locking portion 302b having a shape protruding outward is formed. The ROM cover portion 302a is fixed by screwing a screw 304 into a screw receiving member (not shown) provided inside the box main body 300 in a state where the ROM cover portion 302a is fitted in the cutout portion of the box main body cover portion 301. .

FIG. 20 is a sectional view taken along the line CC of FIG. Referring to FIG. 20, a box back surface cover portion 308 is attached to a lower portion inside the box body 300. A pair of sliding portions 307 is provided on the lower surface of the box back surface cover portion 308. This sliding portion 307, the box main body 300 pachinko gaming machine 34
Used when mounting on.

Inside the box main body 300, a game control board 113 is attached to the upper part of the box back cover portion 308, and the game control board 11 is attached.
Electrical components such as a ROM 117 for game control are mounted on the 3. The slide guide 303 sandwiches the ROM cover portion 302a from both the front side and the back side of the box body cover portion 301, and the ROM cover portion 302a.
Is configured to be slidable.

The locking portion 302b is the ROM cover portion 302.
It has a configuration in which a portion integrally formed with a and a portion integrally formed with the box body 300 are welded. The welding of the member on the side of the ROM cover 302a and the member on the side of the box body 300 in this locking portion 302b is performed as shown in FIG.
The ultrasonic welding method described below is used.

As described above, since the end portion of the ROM cover portion 302a and the end portion of the box body 300 are welded to each other in the engaging portion 302b, the ROM in this state is
The cover 302a cannot slide outward along the slide guide 303.
Further, a thin constricted portion 302c is formed at the boundary between the engagement portion 302b and each of the ROM cover portion 302a and the box body 300.

This game control board box 112 is manufactured in a mode as shown in FIG. 20 at the manufacturing stage, and is in such a state even when the pachinko gaming machine is installed in the game hall. And ROM11
When the inspection of No. 7 is performed, the mode is set as shown in the next FIG.

FIG. 21 is an enlarged view of an essential part of FIG. 20 showing a state where the ROM cover 302a is slid outward. Referring to FIG. 21, when the ROM 117 is inspected, R
The OM cover 302a is slid outward. The procedure is as follows. First, the engaging portion 302b is cut. The engaging portion 302b can be easily cut by applying a force to the constricted portion 302c because the constricted portion 302c has a small thickness. Then, the ROM cover portion 302a is slid outward along the slide guide 303 (in the direction of the arrow a in the figure). When the ROM cover portion 302a is slid outward in this manner, the box body cover portion 301
Since the notch portion is open, the ROM 117 can be inspected.

After the inspection of the ROM 117 is completed, the ROM cover portion 302a is slid inward to close the opening in the cutout portion of the box body cover portion 301. Further, the screw 304 shown in FIG. 19 is screwed into a screw receiving member provided inside the box main body 300 via the ROM cover portion 302a, so that the ROM
The cover 302a is fixed. And that screw 30
4 is covered with the sealing paper 306 (see FIG. 19) at the time of re-mounting so as to cover the ROM cover 302a and the box body 3
It is sealed by pasting it between 00 and 00.

In this way, the game control board box 112
In the above, when opening the ROM cover part 302a, the locking part 302b must be cut. Therefore, when the locking portion 302b of the game control board box 112 which is not inspected of the ROM 117 is cut, the ROM cover portion 302a of the game control board box 112 has been illegally opened. That is, if the uninspected game control board box 112 is tampered with, a trace of the locking portion 302b being cut remains, so by checking the state of the locking portion 302b, the uninspected game control board box 112. With respect to, it is possible to easily determine whether or not any unauthorized modification has been performed.

Third Embodiment Next, a third embodiment will be described. In the third embodiment, another example of the game control board box will be described. FIG. 22 is a sectional view of the game control board box according to the third embodiment. In FIG. 22, the whole sectional view of the game control board box 114 is shown in (a),
(B) and (c), the game control board box 114
An enlarged view of the main part of is shown.

Referring to FIG. 22 (a), this game control board box 114 is different from the game control board box 112 shown in FIG. 20 in ROM cover section (302a).
Is not provided, and the locking portion 352 is formed by welding the end portion of the box body cover portion 351 and the end portion of the box body 350.

In FIG. 22A, the sliding portion 353 is formed.
20 corresponds to the sliding portion 307 of FIG. 20, the box back surface cover portion 354 corresponds to the box back surface cover portion 308 of FIG. 20, and the game control board 11
3b corresponds to the game control board 113 in FIG.

In this game control board box 114, a part of both ends on the long side of the box body cover 351
The game control board 112 is formed so that a part of both ends on the long side of the box body 350 forms a locking portion 352.
Is formed so as to project toward the outside. And the locking part 3
As in the case of the locking portion 302b shown in FIG. 20, 52 is configured by welding a member on the side of the box main body cover 351 and a member on the side of the box main body 350. A constricted portion 355 having a small wall thickness is formed between the locking portion 352 and each of the box body 350 and the box body cover portion 351. The locking portion 35
Two may be provided at three or more locations on the outer edge of the game control board box 114.

The game control board box 114 has a structure as shown in FIG. 22 (a) at the manufacturing stage, and is in such a state even when installed in the game hall. And R in the box body 350
When the OM is inspected, the entire box body cover portion 351 is removed from the box body 350 as shown below.

The method for removing and reattaching the box body cover 351 will be described below.

First, referring to FIG. 22B, when the ROM in the box body 350 is to be inspected, the engaging portions 352 provided at a plurality of locations are all cut off. By cutting the engaging portion 352 in this way, the box body cover portion 351 can be detached from the box body 350. Then, by removing the box body cover 351 in such a state, it becomes possible to inspect the ROM accommodated in the box body 350.

After the inspection of the ROM, FIG.
As shown in (c), the box body cover portion 351
The box body cover portion 351 is attached to the box body 350 by screwing the screw 304 into the screw receiving portion 356 provided in the box body 350 via. Here, the screw receiving portion 356 is the box body 350.
There are multiple locations inside. And screw 304
The resealing sealing paper 306 is affixed between the box body cover portion 351 and the box body 350 so as to seal the box.

In this game control board box 114, when the box body cover 351 is opened,
It is necessary to cut the locking portion 352 without fail. Therefore,
If the lock portion 352 of the game control board box 114 that has not been inspected for the ROM is cut, the box body cover portion 3 of the game control board box 114 is cut.
51 is illegally opened. That is, when the uninspected game control board box 114 is illegally modified, a trace that the locking portion 352 is cut remains. For this reason,
By observing the state of the locking portion 352, it is possible to easily determine whether or not an unauthorized modification action has been performed on the uninspected game control board box 114.

Next, the locking portion 302b provided in the game control board box 112 shown in FIGS. 19 to 21 and the locking portion 352 provided in the game control board box 114 shown in FIG. 22 are common. A specific example of the welding method will be described. FIG. 23 is an explanatory diagram for explaining a method of welding the locking portions 302b and 352 shown in FIGS. 19 to 22.

In FIG. 23, different kinds of welding methods are shown in each of (a) to (c). All of the following welding methods are ultrasonic welding methods.

First, the first welding method will be described with reference to FIG. The lower member (box body 300 or box body 350) is placed on the pedestal 501. Then, the upper member (ROM cover portion 302a or box body cover portion 351) is placed on the lower member.

Then, the ultrasonic transmitting section (horn) 500 presses the upper member against the lower member, and in this state, the ultrasonic transmitting section 500 vibrates based on the ultrasonic waves.
The vibration causes friction between the upper member and the lower member, and the frictional heat welds the upper member and the lower member.

The result of the welding is shown at the tip of the white arrow in the figure. Basically, the welding method shown in (a) of FIG. 25 also welds those shown in (b) and (c).

23 (a), (b) and (c) in FIG. 23 are different from each other in the following points. That is, in the welding method shown in (a), the protrusion 600 is formed on the lower surface of the upper member. Therefore, in the case of (a), since the protrusion 600 is embedded in the lower member and the joint surface between the upper member and the lower member is widened, the welding strength is improved. .

In the case of (b), the protrusion 601 is formed on the upper member, and the protrusion 6 is formed on the lower member.
A hole 602 into which 01 can be inserted is formed. And
When welding the upper member and the lower member, the projection 6
01 is inserted into the hole 602 and welded. The result of the welding is shown in the figure before the white arrow in the figure. By adopting such a form of the welding surface, in the welding method of (b), since the welding surface between the upper member and the lower member is widened, the welding strength is further improved.

The welding method (c) is performed by the ultrasonic wave transmitting section 502.
Is characterized by its shape. That is, the protruding portion 502a is formed at the end of the ultrasonic wave transmitting portion 502 shown in (c). Therefore, the ultrasonic transmission unit 5 having such a shape
When welding is performed using 02, the upper member is pushed into the lower member by the protrusion 502a, and unevenness is generated on the welding surface between the upper member and the lower member. The specific shape is shown in the figure before the white arrow in (c). As described above, when unevenness is generated on the welding surface, the welding surface becomes wider, so that the strength of the welding can be improved.

Fourth Embodiment Next, a fourth embodiment will be described. In the fourth embodiment, another example of the game control board box will be described.

FIG. 24 is a plan view of a game control board box according to the fourth embodiment. With reference to FIG. 24, the game control board box 115 includes a box body 400 having an opening in the upper portion, and a plate-shaped box body cover portion 401 attached to the opening on the box body 400.
Box body 400 and box body cover portion 401
Are each made of synthetic resin.

The box body cover portion 401 is provided with screws 40.
It is fixed to the box main body 400 at four points by screwing using 4 and the box main body 4 is fixed at four points by using an aluminum blind rivet 402.
It is fixed at 00. In the box body cover part 401, the box body 4 is formed by using the blind rivet 402.
The blind rivet 402 is attached to the portion fixed to 00.
Thus, a locking hook 403 engaged with the box body 400 is formed. In addition, the seal paper 40 is provided between the box body cover part 401 and the box body 400.
No. 6 is attached and a seal is made.

FIG. 25 is a sectional view taken along the line EE of FIG. 25, sliding portion 407 corresponds to sliding portion 307 shown in FIG. The box back surface cover portion 406 corresponds to the box back surface cover portion 308 shown in FIG. The game control board 113c corresponds to the game control board 113 shown in FIG. A plurality of through holes 400a are formed in the side wall portion of the box body 400. Locking hooks 403 are formed at both ends of the box body cover portion 401.

Next, the manner of attaching the box body cover 401 to the box body 400 and the method of removing the box body cover 401 will be described. FIG. 26 shows
It is a principal part expanded sectional view of FIG. In FIG. 26,
The state before the box body cover portion 401 is removed is shown in (a), and the box body cover portion 401 is shown in (b).
The state after removal of is shown.

Referring to FIG. 26A, a locking hook 403 formed at the end of the box body cover portion 401.
Is integrally formed with a bent portion 403a protruding upward (front side) of the box body cover portion 401 and a locking portion 403b protruding downward (back side) of the box body cover portion 401. The hook 403 itself is an extension of the end portion of the box body cover portion 401.

The bent portion 403a has a shape in which the end portion of the box body cover portion 401 is once bent upward (front direction) and then further bent downward (back direction). Therefore, when the bent portion 403a is cut along the line FF in the figure, the locking portion 403b and the main body portion of the box main body cover portion 401 are separated. The locking portion 403b is formed with a through hole 403c having the same diameter as the through hole 400a on the box body 400 side, and the blind rivet 402 is inserted into the through holes 400a and 403c. In this manner, the box body 400 and the box body cover portion 4 are moved by the blind rivet 402.
01 and are fixed.

At the manufacturing stage of the pachinko gaming machine 34, the game control board box 115 has a structure as shown in FIG. 26A, but the ROM for game control is inspected at the game hall. (A)
The bent portion 403a is cut along the line F-F. When the bent portion 403 is cut, as described above, the locking portion 403.
b and the box body cover portion 401 are separated, the box body cover portion 401 is
It is ready to be removed from 0. The state is shown in FIG.

As shown in FIG. 26B, the box body cover portion 401 is lifted upward so that the box body cover portion 401 is moved to the box body 400.
Removed from Then, after the inspection of the ROM for game control is completed, the box body cover portion 401 is placed on the box body 400, and the box body cover portion 401 is screwed by using the screw 404 shown in FIG. It is attached to the box body 400. Further, as shown in FIG. 24, a sealing paper 405 is attached between the box main body cover portion 401 and the box main body 400 so as to cover the screw 404, so that sealing is performed.

In the game control board box 115, when opening the box body cover portion 401,
It is always necessary to cut the bent portion 403a of the locking hook 403. Therefore, when the locking hook 403 of the game control board box 115 which is not inspected for the ROM is cut, the game control board box 115 is cut.
The box main body cover part 401 is opened illegally. That is, uninspected game control board box 11
When the 5 is illegally modified, a trace that the locking hook 403 is cut remains. Therefore, by checking the state of the locking hook 403, the uninspected game control board box 115
With respect to, it is possible to easily determine whether or not any unauthorized modification has been performed.

Next, a method of mounting the blind rivet 402 mounted on the game control board box 115 will be described. FIG. 27 is an explanatory diagram for explaining a method of mounting the blind rivet 402. In FIG. 27, (a) shows the state when the blind rivet 402 is attached, and (b) shows the blind rivet 402.
The state is shown after mounting the.

Referring to FIG. 27 (a), the blind rivet 402 is made of a relatively soft metal such as aluminum or aluminum alloy. And the member 402b. The locking member 402a is a member provided with a through hole having a predetermined diameter in the axial direction of the main body portion of the rivet 402, and a thin rod-shaped pulling member 402b is inserted into the through hole. The pull-out member 402b has one end in the longitudinal direction having a larger diameter than the diameter of the through hole in the locking member 402a. The pull-out member 402b is inserted into the through hole in such a manner that the large-diameter portion 402c is located outside the tip of the locking member 402a.

When the blind rivet 402 is mounted, the small-diameter side tip portion 402d of the pulling member 402b is pulled by a dedicated tool for the blind rivet 402, as shown in FIG. 27 (b). When the pulling member 402b is pulled in such a manner, the pulling member 402b
The large diameter portion 402c of b is gradually pushed into the through hole of the locking member 402a, and the tip end portion of the locking member 402a expands in the radial direction. As a result, the locking member 402a fixes the box body 400 and the box body cover portion 401 in a sandwiching manner.

Next, major modifications and the like of the present invention will be listed. (1) The ROM 117 shown in FIG. 13 stores game control content information (game control program), and when the stored information is inspected, the stored game control content information is read out. The use information storage means is configured and is formed integrally with the game control means (CPU 96) by the ROM 98 shown in FIG. 13, stores the game control content information, and the stored game control content information is the game control means. Although the game control information storage means used for controlling the game state by is configured, the following means may be further provided. That is, as shown in FIG.
A game control content information writing unit (program writing circuit 103) for writing the game control content information stored in the inspection information storage unit into the game control information storage unit may be further provided.

(2) Further, the following means may be provided. That is, when the game control means controls the gaming state of the gaming machine based on the game control content information stored in the game control information storage means, the game control content information is previously stored in the inspection information storage means. You may further provide the game control content information abnormality determination means which determines whether it is the stored game control content information. The game control content information abnormality determination means is configured by, for example, the CPU 100 included in the security circuit 112 shown in FIG.

(3) The game control content information abnormality determination means may be formed integrally with the game control means (see FIG. 13).

(4) Further, in addition to the game control content information abnormality determining means, the following means may be provided. That is, when the game control content information abnormality determination means determines an abnormality in the game control content information used for control of the game control means, an abnormality notification means may be provided to inform that the abnormality is determined. Good. The abnormality notifying means is, for example, the variable display section 5 of the variable display device 4 shown in FIG.
The left channel speaker 94 and the right channel speaker 95 shown in FIG. 2 are included.

(5) The abnormality notifying means may notify the abnormality by means of a display by the display means (variable display section 5), or a sound generating means (for the left channel speaker 94 and the right channel). It may be notified by the sound generated by the speaker 95). Further, the abnormality notifying unit may notify the abnormality by using both the display unit and the sound generating unit.

(6) The game control board 113 shown in FIG. 3 and the like constitutes a game control board, but the game control board may be housed in the board housing means. The board storing means is constituted by, for example, the game control board box 54 shown in FIG.

(7) The substrate housing means may have a structure in which it is difficult to open it once it has been opened and sealed (see FIG. 16).

[0185]

[Specific examples of means for solving the problem]

(1) The game control board 113 shown in FIG. 13 and the like constitutes a game control board used for controlling the gaming state of the gaming machine. A game control means, an inspection information storage means, and a game control information storage means are attached to the game control board. The game control means controls the game state of the game machine (pachinko game machine 34) based on the game control content information (game control program), and is constituted by the CPU 96 shown in FIG. The inspection information storage means stores game control content information (game control program), and the stored game control content information is read out when the stored information is inspected. ROM 1 shown in 13
17. The game control information storage means is integrally formed with the game control means, stores game control content information (game control program), and the stored game control content information is used for controlling the game state by the game control means. The ROM 98 shown in FIG. 13 is used.

(2) The inspection information storage means (ROM
117) prestores game control content information (game control program). The game control information storage means (ROM 98) reads and stores the game control content information stored in advance in the inspection information storage means, and thereafter the stored game control content information is the game control means ( C
It is used to control the game state by the PU 96).

(3) Switching circuit 106 shown in FIG.
And by the voltage detection circuit 108, after the game control content information (game control program) stored in the inspection information storage means (ROM 117) is once read and stored in the game control information storage means (98), Information rewriting disabling means for disabling rewriting of the game control content information stored in the game control information storage means is configured.

[0188]

[Effect of a concrete example of means for solving the problem]
Regarding, since it is possible to inspect the game control content information using the inspection information storage means attached to the game control board, it is possible to easily inspect the game control content information. Furthermore, since the game control information storage means for storing the game control content information used directly for the game control of the gaming machine is formed integrally with the game control means, the game control content information actually used for controlling the game state. It is possible to prevent unauthorized modification of the above. In other words, it is possible to provide a gaming machine in which it is easy to inspect the game control content information and which is difficult to illegally modify the game control content information.

With respect to claim 2, the following effect can be obtained in addition to the effect according to claim 1. That is, the game control content information previously stored in the inspection information storage means is read and stored in the game control information storage means, and since the information is used for controlling the game state, it is separately stored in both storage means. The operation of storing the game control content information can be simplified as compared with the case of performing the operation of storing the game control content information. Furthermore, since the same game control content information is stored in both storage means, the content of the game control content information can be easily unified between these storage means.

Regarding claim 3, in addition to the effect according to claim 2, the following effect can be obtained. That is, after the game control content information is read from the inspection information storage means and stored in the game control information storage means, the stored information in the game control information storage means cannot be rewritten, so that the game is not played. The effect of preventing unauthorized modification of the game control content information used for controlling the state can be further enhanced.

[Brief description of drawings]

FIG. 1 is a front view of a game board of a pachinko gaming machine according to the present invention.

FIG. 2 is a front view showing a pachinko gaming machine and a card unit according to the present invention.

FIG. 3 is a rear view showing a pachinko gaming machine and a card unit.

FIG. 4 is a diagram showing a configuration of a control circuit used in a pachinko gaming machine.

FIG. 5 is a diagram showing a configuration of a control circuit used in a pachinko gaming machine.

FIG. 6 is a diagram showing a configuration of an image display control circuit used in a pachinko gaming machine.

FIG. 7 is a diagram illustrating various random counters used for variable display control of the variable display device.

FIG. 8 is a flowchart showing a variable display control operation of the variable display device.

FIG. 9 is a flowchart showing a variable display control operation of the variable display device.

FIG. 10 is a flowchart showing a variable display control operation of the variable display device.

FIG. 11 is an operation explanatory view for explaining the occurrence operation of the high probability state.

FIG. 12 is a diagram showing a stop symbol displayed on the variable display device.

FIG. 13 is a block diagram showing a detailed configuration of a basic circuit.

FIG. 14 is a flowchart showing the processing contents of processing executed by the CPU of the security circuit.

FIG. 15 is a block diagram showing a configuration of a game control ROM shown in FIG. 13.

FIG. 16 is an exploded perspective view of the game control board box according to the first embodiment.

FIG. 17 is a plan view of the game control board box according to the first embodiment.

FIG. 18 is a perspective view showing a state in which the ROM cover portion of the game control board box according to the first embodiment is attached and a state in which the ROM cover portion is removed, for comparison.

FIG. 19 is a plan view of the game control board box according to the second embodiment.

FIG. 20 is a sectional view taken along line CC of FIG. 19;

FIG. 21 is an enlarged view of a main part of FIG. 20, showing a state where the ROM cover part is slid.

FIG. 22 is a sectional view of the game control board box according to the third embodiment.

FIG. 23 is an explanatory diagram for explaining a method of welding the locking portion shown in FIGS. 19 to 22.

FIG. 24 is a plan view of the game control board box according to the fourth embodiment.

25 is a cross-sectional view taken along the line EE of FIG.

26 is an enlarged sectional view of a main part of FIG. 25.

FIG. 27 is an explanatory diagram for explaining a method of attaching a blind rivet.

[Explanation of symbols]

113, 113a, 113b, 113c are game control boards, 98, 98a, 98b, 117 are ROMs, 96, 1
00 is a CPU, 103 is a program writing circuit, 99 is a clock generation circuit, 112 is a security circuit, 106 is a switching circuit, 108 is a voltage detection circuit, 4 is a variable display device,
5 is a variable display unit, 94 is a left channel speaker, 95 is a right channel speaker, 54, 112, 113, 11
4, 115 is a game control board box.

Claims (3)

[Claims] 1. A game machine for controlling a game state based on stored game control content information, including a game control board used for controlling the game state of the game machine, wherein the game control board is , Game control means for controlling a game state of the gaming machine based on the game control content information, and the game control content stored when the game control content information is stored and the stored information is inspected An inspection information storage unit from which information is read, and the game control unit are integrally formed, store the game control content information, and the stored game control content information is used for controlling the game state by the game control unit. A gaming machine, to which a game control information storage means is attached. 2. The inspection information storage means stores in advance the game control content information, and the game control information storage means stores in advance the game control content stored in the inspection information storage means. The information is read and stored, and thereafter, the stored game control content information is
The game machine according to claim 1, wherein the game machine is used for controlling a game state by the game control means. 3. The game control content information stored in the inspection information storage means is once read and stored in the game control information storage means, and then stored in the game control information storage means. 3. The gaming machine according to claim 2, further comprising information rewriting disabling means for disabling the rewriting of the game control content information.