JP2012040402A - Game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a game machine which can prevent a fraudulent act against a game control board and with which performance of a fraudulent act can be easily and surely identified when the fraudulent act has been committed.SOLUTION: A second projection part 244 of a board case 214 is provided with a claw member 248. The claw member 248 is engaged with a nut member 250 that tries to rotate in one direction of rotation to prevent the nut member 250 from rotating and lock the nut member 250. Therefore, by rotating a bolt member 218 in one direction of rotation, the nut member 250 and the bolt member 218 are allowed to rotate relative to each other, which increases a degree of screwing between the two members. On the other hand, the claw member 248 is not engaged with the nut member that tries to rotate in the other direction of rotation, allowing the nut member 250 to rotate. Therefore, when the bolt member 218 is tried to be rotated in the other direction of rotation, the nut member 250 and the bolt member 218 rotate together in the other direction of rotation and the screwed state between the two members is not canceled.

Description

The present invention relates to a pachinko machine, a slot machine, or the like provided with a game control board for controlling a game using a game medium such as a game ball or a game medal, and a game control board housing member for housing the game control board. It relates to gaming machines.

Conventionally, a storage case for storing a game control board (for example, a main control board or a payout control board) for controlling a game is attached to the back surface of the game board or the back surface of the game machine housing. Yes. The housing case includes a case main body that holds the game control board and a case cover that is joined to the case main body. The case body and the case cover are coupled to each other by being fixed by a fixing tool such as a one-way screw.

Japanese Patent Laid-Open No. 11-226220 JP 2004-113526 A

By the way, in the method in which the case main body and the case cover are bonded together by fixing with a one-way screw, the one-way screw can be removed without leaving a trace by using a special dedicated tool. Then, the case body and the case cover are separated, the game control board accommodated in the inside is taken out, an illegal act is performed on the game control board, the game control board is returned to the case body again, and the case body And the case cover can be combined with one-way screw.

When such a fraudulent act is performed, there is no trace of the fraudulent act, so it becomes difficult to notice the fraudulent act, and the game is started by the control by the game control board in which the fraudulent act is performed. As a result, there arises a problem that an illegal game proceeds.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a gaming machine that can prevent illegal acts on a game control board and easily and surely find out that an illegal act has been performed even if the illegal act has been performed.

The invention according to claim 1 is a gaming machine comprising a game control board for controlling a game and a game control board housing member for housing the game control board, wherein the game control board housing member is The housing member main body provided with the first hole portion formed along the thickness direction, and covering the game control board between the housing member main body and the housing member main body so as to surround the game control board, and the thickness direction A housing member lid body including a second hole portion that is formed along the first hole portion and communicates with the first hole portion in a state of being joined to the housing member body body, and a joint state between the housing member body body and the housing member lid body And a bolt member interposed between the first hole and the second hole inserted from the opening of the first hole or the second hole. , Relative to the bolt member toward one side in the rotational direction A nut member that engages with the bolt member by rolling, and that releases the screw engagement with the bolt member by rotating relative to the bolt member toward the other side in the rotational direction; Either the housing member lid or the housing member main body engages with the nut member to be rotated in one direction of rotation, thereby allowing relative rotation between the nut member and the bolt member. And a rotation adjusting means for rotating the nut member and the bolt member together without engaging with the nut member to be rotated in the other direction of rotation,
The rotation adjusting means is formed in a part of an inner peripheral surface of the first hole or the second hole, and is engaged with an outer surface of the nut member to prevent rotation of the nut member. A second recess formed on a part of the inner peripheral surface of the first hole or the second hole and allowing the nut member to rotate without engaging the outer surface of the nut member. The first hole or the bottom of the second hole formed with the first recess and the second recess is interposed between the nut member and the first hole or the second hole. An elastic member that adjusts the distance between the bottom portion and the nut member by elastic deformation is provided, and when the pressing force from the bolt member acting on the nut member is larger than the elastic force of the elastic member, the elastic member Is elastically deformed and the first hole or the second
The distance between the bottom of the hole and the nut member is shortened so that the outer surface of the nut member and the first recess are engaged, and the pressing force from the bolt member acting on the nut member is the elastic force. When the elastic force of the member is smaller than the elastic force of the member, the elastic member is elastically deformed to increase the separation distance between the bottom of the first hole or the second hole and the nut member, and the nut member becomes the second recess. The engagement state between the outer surface of the nut member and the first recess is released by moving to the side.

According to invention of Claim 1, the bolt member which comprises a fixing tool is inserted from the opening part of a 1st hole part or a 2nd hole part, and interposes inside the 1st hole part and the 2nd hole part, The nut member constituting the fixing tool is screwed. Thereby, the joining state of a storage member main body and a storage member lid can be maintained.
The bolt member and the nut member are configured to be able to be screwed by rotating relative to one side in the rotation direction, and to be released by rotating to the other side in the rotation direction.

Here, either one of the housing member lid or the housing member main body is provided with a rotation adjusting means, and the rotation adjusting means engages with the nut member to be rotated in one direction of rotation to rotate the nut member. And the nut member is fixed. Thereby, relative rotation between the nut member and the bolt member is enabled by rotating the bolt member to one side in the rotation direction, and the degree of screwing of both can be advanced.

On the other hand, the rotation adjusting means allows the nut member to rotate without engaging with the nut member that attempts to rotate in the other direction of rotation. Thereby, when it is going to rotate a bolt member to the rotation direction other side, a nut member and a bolt member will rotate together toward the rotation direction other side, and both screwing state is not cancelled | released. For this reason, even if the fraudster tries to rotate the bolt member to the other side in the rotation direction, the screwed state between the bolt member and the nut member continues to be maintained.
The bolt member cannot be pulled out from the opening of the first hole or the second hole.

As described above, by providing the rotation adjusting means on either the housing member lid or the housing member main body, it is possible to prevent the bolted member and the nut member from being unscrewed, and the game control board can be used as the game control board housing member. Can be prevented from being illegally taken out, and its deterrence can be demonstrated. In addition, when trying to forcibly take out the game control board from the game control board housing member, the bolt member, the first hole or the second hole will be broken or damaged,
There will surely be a trace of fraud. As a result, the fact of fraud can be easily and reliably discovered.

According to the first aspect of the present invention, when the pressing force from the bolt member acting on the nut member is larger than the elastic force of the elastic member, the elastic member is elastically deformed to cause the first hole portion or the first hole portion. The distance between the bottom of the two holes and the nut member is reduced, and the outer surface of the nut member and the first recess are engaged. As a result, the nut member can be fixed, so that the bolt member and the nut member can be rotated relative to each other by rotating the bolt member to one side in the rotational direction, and the degree of screwing of both is advanced and the screwed state. Can be maintained.

On the other hand, when the pressing force from the bolt member acting on the nut member is smaller than the elastic force of the elastic member, the elastic member is elastically deformed and the bottom portion of the first hole portion or the second hole portion is separated from the nut member. The distance increases. Thereby, since a nut member moves to the 2nd crevice side, the engagement state of the outside surface of a nut member and 1 crevice is canceled. As a result, when the bolt member is rotated to the other side in the rotational direction, the relative rotation between the bolt member and the nut member becomes impossible, and the nut member rotates together with the bolt member. It will never be done.

The invention disclosed in the present specification for reference (hereinafter referred to as “reference invention”) includes a game control board for controlling a game, and a game control board housing member for housing the game control board. The gaming control board housing member is provided between the housing member main body having a first hole formed in the thickness direction and the housing member main body joined to the housing member main body. And a housing member lid provided with a second hole portion that is formed along the thickness direction and is connected to the housing member main body and communicates with the first hole portion. A fixing tool that maintains a joined state between the housing member main body and the housing member lid, and the fastening tool is inserted from the opening of the first hole or the second hole, and Bolt member interposed in the hole and the second hole, and rotation The bolt member is screwed into the bolt member by rotating relative to the bolt member toward one side, and the bolt member is rotated relative to the bolt member toward the other side in the rotation direction. A nut member that releases the threaded engagement with the nut member, and engages with the nut member to be rotated in one direction of rotation on either the housing member lid body or the housing member main body. Rotation adjusting means for enabling relative rotation between a member and the bolt member, and rotating the nut member and the bolt member together without engaging with the nut member to be rotated in the other direction of rotation. , And
A plurality of projecting portions are provided on the outer surface of the nut member at a predetermined interval, and the rotation adjusting means is provided on either the housing member lid or the housing member main body. The claw member is engageable, and the claw member engages with the projecting portion of the nut member to be rotated in one direction of rotation to prevent rotation of the nut member, and to the other side in the rotation direction. The nut member is allowed to rotate without engaging with the protruding portion of the nut member to be rotated.

According to the reference invention, the rotation adjusting means is a claw member that is provided on either the housing member lid or the housing member main body and can be engaged with the protruding portion, and the claw member rotates in one direction of rotation. The nut member is engaged with the protruding portion of the nut member to be prevented, and the nut member is prevented from rotating. Thereby, the relative rotation of the bolt member and the nut member is enabled by rotating the bolt member to one side in the rotation direction, and the screwing state can be advanced and the screwed state can be maintained.

On the other hand, the claw member allows rotation of the nut member without being engaged with the protruding portion of the nut member that attempts to rotate in the other direction of rotation. As a result, when the bolt member is rotated to the other side in the rotation direction, relative rotation between the bolt member and the nut member becomes impossible, and the screwed state is maintained. Thus, the relative rotation of the bolt member and the nut member can be adjusted with a simple configuration.

It is possible to provide a gaming machine that can prevent fraudulent acts on the game control board and can easily and surely detect fraudulent acts even when the fraudulent acts are performed.

1 is a front view of a gaming machine according to a first embodiment of the present invention. It is a rear view of the gaming machine according to the first embodiment of the present invention. It is a front view of the game board of the gaming machine according to the first embodiment of the present invention. It is a rear view of the game board of the gaming machine according to the first embodiment of the present invention. It is a block diagram which shows the structure of a part of electronic control apparatus of the game machine which concerns on 1st Embodiment of this invention. It is explanatory drawing for demonstrating the sub control board which comprises the electronic controller of the gaming machine which concerns on 1st Embodiment of this invention. FIG. 3 is a side view of a state in which the housing member main body and the housing member lid of the game control board housing member of the gaming machine according to the first embodiment of the present invention are in contact with each other (joined state of the housing member main body and the housing member lid). is there. The state before the bolt member and a nut member are screwed together in the state which made the accommodation member main body and accommodation member lid of the game control board accommodation member of the gaming machine concerning a 1st embodiment of the present invention contact is shown. FIG. The part which showed the state which screwed together the bolt member and the nut member in the state which made the accommodation member main body and accommodation member cover body of the game control board accommodation member of the gaming machine concerning a 1st embodiment of the present invention contact FIG. It is the top view which showed the positional relationship of the rotation adjustment means (claw member) used for the gaming machine which concerns on 1st Embodiment of this invention, and a nut member. A state in which the housing member main body and the housing member lid of the game control board housing member of the gaming machine according to the second embodiment of the present invention are in contact with each other and before the bolt member and the nut member are completely screwed together It is the partial block diagram which showed. A state in which the housing member main body and the housing member lid of the game control board housing member of the gaming machine according to the second embodiment of the present invention are in contact with each other and the bolt member and the nut member are completely screwed together. It is the partial block diagram shown. The state when the accommodation member main body and accommodation member lid of the game control board accommodation member of the gaming machine concerning a 2nd embodiment of the present invention are brought into surface contact and a bolt member and a nut member rotate together is shown. Is a partial configuration diagram It is the perspective view which showed the rotation adjustment means (a 1st recessed part and a 2nd recessed part) used for the game machine which concerns on 2nd Embodiment of this invention.

(First embodiment)
Next, a gaming machine according to the first embodiment of the present invention will be described with reference to the drawings. In addition,
In the present embodiment, a configuration in which the present invention is applied to a game control board housing case of a pachinko machine that is an example of a ball game machine will be described, but with respect to a game control board housing case for housing a game control board of a slot machine However, it can be easily applied.

As shown in FIG. 1, the front part of the pachinko machine (game machine) 10 according to the first embodiment mainly includes an outer frame 12, an inner frame 14, a front frame 16, an upper plate part 18, and a lower part. A dish portion 20, a locking device 22, a firing handle 24, and the like are provided. The outer frame 12 is obtained by assembling and fixing a wooden plate-like body into a substantially rectangular frame shape. The inner frame 14 is entirely made of plastic, and the outer frame 12
It is supported so that it can be opened and closed. A locking device 22 is provided slightly below the center of the right end of the inner frame 14. The front frame 16 is a specific example of the front door of the present invention, occupies about 2/3 of the entire front portion of the pachinko machine 10, and is pivotally supported at the left end of the inner frame 14 so that it can be opened and closed. Has been. The front frame 16 is entirely made of plastic and has a game board 26.
In order to visually recognize (see FIG. 3) from the front, an opening 30 formed in a substantially circular shape corresponding to the shape of the game area 28 (see FIG. 3) formed in the game board 26 is provided. A glass plate 32 is attached to the back surface of the front frame 16 by a glass frame (not shown). Then, based on the player, the game area 28 formed on the game board 26 is positioned behind the glass plate 32.

Further, an upper plate portion 18 is provided below the front frame 16. In this upper plate part 18,
An effect button 40 and a ball lending operation unit 155 are provided.

A lower dish portion 20 is provided below the upper dish portion 18. A launching handle 24 for launching a game ball is provided on the lower right side of the lower plate part 20. The firing handle 24 is provided with a firing lever 44 and a firing stop button 46, respectively.

In addition, on the lower left and right sides of the lower plate part 20, each sub-speaker 4 for outputting a predetermined sound effect is provided.
8 are provided.

The inner frame 14 has an opening (not shown) that matches the shape of the game area 28. A game board 26 is attached to the inner surface of the inner frame 14. Thereby, the player can visually recognize the game area 28 of the game board 26 through the opening of the inner frame 14 and the opening 30 of the front frame 16.

Furthermore, a ball lending device (game medium lending unit) 154 is provided on the left side of the front surface of the pachinko machine 10. In this embodiment, a CR unit is applied as the ball lending device 154. The ball lending device 154 is formed with a card insertion slot 157 for inserting a prepaid card. In addition, the structure which provided the cash unit as the ball lending apparatus 154 may be sufficient. In this cash unit, instead of the card insertion slot 157, a cash insertion slot (not shown) for inserting cash is formed.

Further, the ball lending operation unit 155 has a ball lending switch (lending operation means) for requesting ball lending.
156 and a return switch 158 for requesting the return of the prepaid card inserted into the card insertion slot 157, respectively.

For example, when a prepaid card is inserted into the card insertion slot 157 of the ball lending device 154, the stored information of the prepaid card is read by a card reader / writer inside the ball lending device 154. When the remaining frequency of the prepaid card is “0”, the prepaid card is automatically returned from the card insertion slot 157. On the other hand, when the remaining frequency of the prepaid card is not “0”, when the ball lending switch 156 is pressed, the remaining frequency of the prepaid card is subtracted by the card reader / writer and the stored information of the prepaid card is rewritten. A number of game balls (lending balls) corresponding to the number of times (rented amount) are guided from the payout device (game medium payout means) 161 to the upper plate 18. At this time, for example, when the remaining frequency of the prepaid card is subtracted to “0”, the prepaid card is automatically returned from the card insertion slot 157.

In the configuration using a cash unit as the ball lending device 154, cash is counted by a cash counter inside the ball lending device when cash is inserted into the cash slot of the ball lending device. If the ball lending switch is pressed after the input amount reaches the predetermined amount, the input amount is reduced by the cash counter and the number of game balls (rental balls) corresponding to the reduced amount (loan amount) ) Is guided from the dispensing device 161 to the upper plate 18.

As shown in FIG. 2, a back mechanism board 200 is attached to the inner frame 14 of the pachinko machine 10 so as to cover the back side of the game board 26. The back mechanism panel 200 mainly supplies power to the payout control board case set 202 containing the payout control board 104, the launch control board case set 204 containing the launch control board 108, and the pachinko machine 10. Power supply board 2
A power supply board case set 208 containing 06 is attached. Each of these board case sets 202, 204, and 208 is configured to protrude to the back side of the pachinko machine 10 through the outer frame 12 after being assembled.

  Next, the surface structure of the game board 26 will be described.

As shown in FIG. 3, the game board 26 is held by the inner frame 14, and the back side of the game board 26 is covered by the back mechanism board 200. In the game board 26, a substantially circular game area 28 is formed by an outer rail 50 and an inner rail 52 provided on the surface of the game board 26. Game area 28
Inside, there are a central device 54, a start port 56B, a warp entrance 58 and a number of obstacle nails 60.
Etc. are arranged respectively.

The central device 54 is disposed substantially at the center of the game area 28 and includes an effect symbol display device 62, a center accessory 64, and a lamp device 66.

The effect symbol display device 62 is display-controlled based on control signals from the main control board (game control board) 102 (see FIG. 5) and the sub control board 106 (see FIG. 5), and has a substantially rectangular display surface. (Display area). On this display surface, special design effects are displayed.
Specifically, on the display surface of the effect symbol display device 62, an effect symbol display area is formed in which one or more effect symbols are displayed while being changed one after another in a predetermined direction and then stopped.
That is, the left effect symbol display area for displaying the left effect symbol, the center effect symbol display area for displaying the center effect symbol, and the right effect symbol display area for displaying the right effect symbol are arranged in a substantially horizontal row. They are formed side by side (not shown). In each effect symbol display area, the symbol variation direction is set in a direction (vertical direction) substantially orthogonal to the arrangement direction of these display areas,
A plurality of effect symbols are sequentially displayed in that direction.

The effect symbol display device 62 causes the effect symbols displayed in the display area of the display surface to change and stop display when the game ball enters the start opening 56B. Then, for example, when the production symbols are aligned with the same three-digit symbols “7, 7, 7” and stopped (determined display), the big winning opening 86 of the big winning device 84 arranged in the variable winning device 80 is opened. Is done. In the pachinko machine 10 of the present embodiment, when a game ball enters the start opening 56B, each effect symbol is changed, and the effect symbol is arranged in the same three-digit symbol, thereby giving a specific value of “big hit”. is there.

Here, in the pachinko machine 10 of the present embodiment, for example, two types of big hits are set in advance. Specifically, there is a probable big hit that is established when three digits of the same odd-numbered effect symbols such as “7, 7, 7” are arranged. In addition, there is a normal jackpot that is established when the same even-numbered effects such as “8, 8, 8” are arranged in three digits.

The probable big hit and the normal big hit are big hits having a relatively large number of rounds (for example, 15 rounds) and the opening time of the big winning opening 86 being about 26 seconds. For this reason, the number of prize balls is relatively large. In each big hit, a predetermined number (for example, 10) of game balls enter the big winning opening 86, or a predetermined time (for example, 10) even if a predetermined number (for example, 10) of the game balls do not enter. For example, when 26 seconds) elapses, the big winning opening 86 is closed and one round is completed.

Further, the probability variation state is a state in which the probability of shifting to a big hit (meaning two kinds of big hits, a probable big hit and a normal big hit) becomes a predetermined high probability. The open time extended state is a state in which the opening time of the start port 56B is extended more than usual. For example, the normal opening time is about 0.1 seconds, while in the extended opening time state, it is extended to about 4 seconds.
The start port 56B is opened by winning a normal symbol lottery, and functions as a normal electric accessory.

In addition, after the probable big hit, the probability of shifting to the big hit becomes a special symbol probability fluctuation state in which the probability is higher than the normal gaming state. Then, the variation time of the special symbol and the normal symbol is shortened until the next big hit is generated, or until the special symbol variation display is performed a predetermined number of times (for example, 10,000 times), and the start port 56B. The open extension function is activated. In addition, after the normal jackpot, the probability of shifting to the big jackpot becomes a predetermined low probability state that is the same as the normal gaming state, and the variation time of the special symbol and the normal symbol is reduced by a predetermined number of times (for example, 100 times). When the opening extension function of the start port 56B is activated, the short game state is set.

The center accessory 64 is mounted so as to protrude from the front peripheral portion of the effect symbol display device 62.
The center accessory 64 has a pair of movable blade pieces 64A. The opening area of the warp entrance 58 is changed by the movement of the blade piece 64A.

In addition, on the lower left side of the game area, a 7-segment display board (design) which controls display of an identification symbol (which means an identification symbol of a special symbol and an identification symbol of a normal symbol) based on a control signal from the main control board 102. Display device) 68 is arranged. The 7-segment display board 68 displays a 7-segment display 70 for displaying a special symbol identification symbol, four normal symbol hold display LEDs 72, four special symbol hold indication LEDs 74, and a normal symbol identification symbol. Two normal symbol display L
ED76.

Here, in the case of a probable big hit, a predetermined identification symbol (for example, a probable big hit symbol consisting of an odd number) is stopped and displayed on the 7-segment display 70. In the case of a big hit, the 7-segment display 70 has another predetermined identification symbol (for example,
The regular big hit symbol consisting of an even number) is stopped and displayed.

Further, a normal symbol operation gate 78 is arranged on the left side of the effect symbol display device 62.
A gate switch 124 (see FIG. 5) is disposed inside the normal symbol operating gate 78. Thus, when the game ball passes through the normal symbol operating gate 78, the gate switch 1
24 is operated, and the normal symbol display LED 76 of the 7-segment display board 68 is variably displayed.

Each normal symbol hold display LED 72 and each special symbol hold display LED 74 are composed of four round red LEDs, and are arranged close to the left and right sides of the 7-segment display 70. In this case, the number of game balls that have passed through the normal symbol operation gate 78 is set to hold the normal symbols up to four, and the lights are sequentially turned on and shifted for each passage. In addition, the number of game balls that have entered the start opening 56B is also reserved for up to four special symbols, which are sequentially lit and shifted for each incoming ball. Each time the variable display on the 7-segment display 70 starts, the number of unstarted times is exhausted, and one special symbol hold display LED 74 is turned off. In addition, each time the normal symbol display LED 76 starts to change the normal symbol, the number of unstarted times is exhausted and one normal symbol hold display LED 72 is displayed.
Turns off. Then, when a predetermined jackpot symbol is stopped and displayed on the 7-segment display 70, a jackpot is generated and the jackpot 86 is opened. In addition, two normal symbol display L
When the ED 76 is stopped and displayed in a predetermined display mode (a winning symbol), a normal symbol hit occurs and the start port 56B is opened. The special symbol identification symbol displayed on the 7-segment display 70 and the special symbol effect symbol displayed on the effect symbol display device 62 indicate the same game result (lottery result). .

The start port 56B is disposed below the effect symbol display device 62 and is formed so as to open and close the pair of wing piece members 56A in a so-called tulip type. Inside thereof, there are a start port switch 120 (see FIG. 5) for detecting the passing of a game ball, and a wing piece member 56A.
And a start-up solenoid 130 (see FIG. 5). When the pair of wing piece members 56A are opened to the left and right, the opening area of the start port 56B is increased, and the possibility of entering a game ball is increased. When the pair of wing piece members 56A are closed and the separation distance is reduced. The opening area of the start opening 56B is reduced, and the normal state is reduced where the possibility of entering a game ball is reduced.

The variable winning device 80 is disposed below the start opening 56 </ b> B, and includes a substrate 82 and a big winning device 84. Here, the grand prize winning device 84 is disposed substantially at the center, and has a grand prize winning opening 86 opened in a strip shape, an opening / closing plate 88 for opening or closing the special winning prize opening 86, and opening / closing the opening / closing plate 88. A large winning opening solenoid 132 (see FIG. 5) and a count switch 126 (see FIG. 5) for detecting a winning ball.

A windmill 63 is disposed on the lower left side of the central device 54. Further, a pair of side lamps 90 are respectively disposed on the lower left portion and the lower right portion of the game area.

Further, an out port 92 is provided below the game board 26, and a back ball preventing member 94 is provided below the out port 92. The back ball preventing member 94 is provided in the gaming area 2
The game ball that has returned without reaching 8 is prevented from returning to the launch position again. A foul ball prevention member 96 is attached to the tip of the inner rail 52.

Here, as shown in FIG. 4, on the back surface of the game board 26, a main control board case set (game control board housing member) 210 containing the main control board 102 and a sub control board containing the sub control board 106 are accommodated. A storage set 212 is attached to each. The detailed configuration of the main control board case set 210 will be described later.

  Next, an electronic control device that constitutes the pachinko machine 10 will be described.

As shown in FIGS. 5 and 6, the electronic control unit includes a main control board 102 and a payout control board 10.
4, a sub-control board 106, and a launch control board 108.

As shown in FIG. 5, the main control board 102 includes a CPU 102A and a ROM 102B.

The CPU 102A of the main control board 102 controls the start opening solenoid 130, the big prize opening solenoid 132, the symbol display device 134, and the sub control board 106 based on the data stored in the ROM 102B. The CPU 102A of the main control board 102
It controls the entire game and mainly determines the game state such as determination of success / failure.

In particular, the CPU 102A executes a jackpot lottery process (special game lottery process) triggered by the entry of a game ball into the start port 56B, and determines the success / failure using an arbitrary random number (special symbol determination random number). It has. In addition, with the execution of the special symbol success / failure determination, the CPU 102A
Has a function of determining a variation pattern (variation time) of a special symbol (identification symbol).

The variation pattern of the identification symbol corresponds to the effect pattern (game effect) of each effect symbol displayed on the effect symbol display device 62. The “determination of the variation pattern of the identification symbol” performed by the CPU 102A is “effect symbol”. Corresponds to “determining the production pattern (game production)”. When the variation pattern of the special symbol (identification symbol) (the production pattern of the production symbol) is determined, the 7-segment display 70 starts the variation display of the special symbol (identification symbol) and produces the production symbol display device 62. When the variation display of the effect symbol is started and the variation time specified by the determined variation pattern elapses, the special symbol and the effect symbol are stopped and displayed. The player's success / failure determination result (big hit lottery result) is notified to the player. In addition, the production symbol display device 62 is approximately at the center of the surface (board surface) of the game board 26,
It is arranged in a state that is easy to enter the player's field of view. On the other hand, the 7-segment display 70 is connected to the game board 2
6 is placed at the end of the surface (board surface) of 6 (in the present embodiment, the left side of the board surface) in a state that it is difficult to enter the player's field of view. For this reason, it is common for a player to play a game while paying attention to the display content of the effect symbol display device 62.

Then, the CPU 102A performs payout control of prize balls generated when the game balls enter the various control holes 106 provided on the board, the sub-control board 106 that controls the above-described variation display and stop display of the effect symbols. The dispensing control board 104 is directly controlled. Also, the main control board 102
The CPU 102A indirectly controls the effect display board 110, the amplifier board 112, the decoration drive board 114, and the effect button board 116 via the sub-control board 106.

The ROM 102B of the main control board 102 stores a program for realizing control of the entire game executed by the CPU 102A.

Further, the main control board 102 is electrically connected to the start port switch 120, the big prize port switch 122, the gate switch 124, and the count switch 126 via the relay terminal plate 118, respectively.

Further, the main control board 102 is connected to the start-up solenoid 130 via the relay terminal board 128,
The big prize opening solenoid 132 and the symbol display device 134 are electrically connected to each other. The 7-segment display board 68 is an embodiment of the symbol display device 134.

The payout control board 104 is electrically connected to the glass frame switch 138, the external tank switch 140, and the tank switch 142 via the relay terminal plate 136, respectively. Further, the payout control board 104 is electrically connected to the error LED 146 via the relay terminal board 144. The payout control board 104 is electrically connected to the lower pan full tank switch 148. Further, the payout control board 104 is electrically connected to a ball rental display board 152 and a ball rental apparatus (CR unit) 154 via a relay terminal board 150, respectively.

The ball rental display board 152 is electrically connected with a ball rental switch 156 and a return switch 158, respectively. The payout control board 104 is electrically connected to a payout device 161 having a payout motor 162 and a payout switch 164 via a relay terminal plate 160. Further, the payout control board 104 includes the main control board 102 and the launch control board 1.
08 are electrically connected to each other.

As shown in FIGS. 5 and 6, the sub control board 106 is electrically connected to the effect display board 110, the amplifier board 112, the decoration drive board 114, and the effect button board 116.

The sub-control board 106 controls game effects based on control signals from the main control board 102. The sub-control board 106 includes a CPU 106A and a ROM 10
6B.

The CPU 106 </ b> A of the sub control board 106 receives the control signal from the main control board 102 and controls each board such as the effect display board 110, the amplifier board 112, the decoration drive board 114, and the effect button board 116.

The ROM 106B stores data (especially information related to game decoration) necessary for controlling each board.

As shown in FIG. 6, an effect display device 166 (62) and an effect display ROM 168 are electrically connected to the effect display board 110. In the effect display ROM 168, data (image data) of effect symbols that are displayed in a variable manner and stopped on the effect symbol display device 62.
Is remembered. The effect symbol display device 62 is an embodiment of the effect display device 166.

The amplifier board 112 is electrically connected to various speakers 170 (48) that output predetermined sound effects. The sub-speaker 48 is an embodiment of various speakers 170.

In addition, various types of LEDs and lamps 172 (66) are electrically connected to the decorative driving board 114. The decoration driving board 114 receives a control signal from the sub-control board 106 and performs control related to game decoration. In particular, the decorative drive board 114 is a sub-control board 1.
Based on the control signal from 06, the light emission of each lamp device 66 is controlled. In addition, an operation switch 174 (40) is electrically connected to the effect button board 116. The lamp device 66 is an embodiment of various LEDs / lamps 172. In addition, the production button 40 is
10 is an embodiment of the operation switch 174;

Next, a detailed configuration of the main control board case set 210 will be described.
The configuration of the payout control board case set 202 is as follows.
Since it is the same as that of the structure of 10, description is abbreviate | omitted. Sub control board case set 212
The launch control board case set 204 and the power supply board case set 208 have a low need for fraud countermeasures, and a simple configuration that simply engages them is employed, so that the description thereof is omitted.

As shown in FIG. 7, the main control board case set 210 includes a board case (housing member body) 2.
14, case cover (housing member lid) 216, substrate case 214, and case cover 21
6, and a nut member 250 that is screwed into the bolt member 218.

The substrate case 214 is a case for holding the main control substrate 102 inside, and is made of a colorless and transparent resin. On the outer surface of the substrate case 214, a first transparent colorless resin is formed.
A flange portion (first flange member) 220 is integrally formed. A first insertion hole (first hole portion) into which a bolt member 218 is inserted into a first projecting piece portion (described later) 240 of the first flange portion 220.
222 is formed to extend in the thickness direction of the first projecting piece 240 of the first flange 220. The diameter (diameter) of the first insertion hole 222 is the diameter of the shaft portion 218A of the bolt member 218 (
It is set to be the same as or slightly larger than the diameter.

Here, as shown in FIGS. 8 and 9, the first flange portion 220 has a first projecting piece portion 240 formed with the first insertion hole 222 and an outer wall of the first flange portion 220. Opening hole part 242 formed by lacking and flat part 246 functioning as the bottom part of first insertion hole 222
The 2nd protrusion piece 244 provided with is formed. The nut member 250 is placed on the flat surface portion 246 of the second protruding piece portion 244. The nut member 250 is located in the opening hole 242, and when the substrate case 214 is taken out from the pachinko machine 10, the opening hole 24 is formed.
2 can access the nut member 250. Therefore, when the bolt member 218 and the nut member 250 are screwed together, the nut member 250 in the opening hole 242 is gripped and fixed, and the bolt member 218 is easily screwed by rotating in a predetermined direction. be able to. On the other hand, in a state where the substrate case 214 is attached inside the pachinko machine 10,
Since the components of the pachinko machine 10 are located in the vicinity of the opening hole 242, the nut member 250 cannot be gripped from the opening hole 242. This
If the board case 214 is installed on the back surface of the game board 26, not only the fraudster but also the hall personnel cannot touch the nut member 250.

Further, a claw member (rotation adjusting means) 248 is provided on the flat surface portion 246 of the second projecting piece portion 244. As shown in FIG. 10, the claw member 248 has a predetermined elastic force,
It engages with a projection (projection) 252 formed on the outer peripheral surface of the nut member 250. In detail,
When the nut member 250 is about to rotate in one direction of rotation (arrow A direction in FIG. 10), the claw member 248 engages with the protrusion 252 on the outer peripheral surface of the nut member 250 and the nut member 250.
Is prevented from rotating in one direction of rotation. On the other hand, the nut member 250 rotates in the other direction of rotation (FIG. 1
When attempting to rotate in the direction of arrow B in the middle of 0), the claw member 248 does not engage with the protrusion 252 on the outer peripheral surface of the nut member 250, and allows the nut member 250 to rotate to the other side in the rotational direction. As described above, the claw member 248 prevents rotation of the nut member 250 in one direction of rotation and allows rotation in the other direction of rotation of the nut member 250 to adjust the rotation of the nut member 250 (rotation). Function as an adjusting means).

As shown in FIG. 7, the case cover 216 is bonded to the substrate case 214 and attached to the substrate case 2.
14 is a colorless and transparent cover made of resin that covers the main control board 102 so as to surround the main control board 102. On the outer surface of the case cover 216, a second flange portion (second flange member) 22 made of colorless and transparent resin is provided.
4 is integrally formed. A second insertion hole (second hole portion) 226 into which the pin member 218 is inserted is formed in the second flange portion 224 so as to penetrate in the thickness direction of the second flange portion 224 (case cover 216). . The second insertion hole 226 includes an enlarged hole portion 226A having a relatively large inner diameter, and a reduced diameter hole portion communicating with the enlarged hole portion 226A and having a diameter smaller than the diameter (diameter) of the enlarged hole portion 226A. 226B. Diameter (diameter) of the enlarged hole portion 226A
Is set to be the same as or slightly larger than the diameter (diameter) of the head portion 218B constituting the bolt member 218. Further, the diameter (diameter) of the reduced diameter hole portion 226B is set to be substantially the same as or slightly larger than the diameter (diameter) of the shaft portion 218A.

As shown in FIG. 9, the bolt member 218 has an opening 228 of the second insertion hole 226 (see FIG. 7).
In the state where the head portion 218B is screwed into the nut member 250 from the inside thereof,
In order to engage with the stepped portion 230 between 26A and the reduced diameter hole portion 226B,
Further movement of the insertion hole 226 in the depth direction is prevented, and the bolt member 218 is moved to the first insertion hole 2.
Positioning is performed in a state of straddling from the inside of 22 to the inside of the second insertion hole 226.

  Next, a detailed configuration of the fixing tool will be described.

As shown in FIGS. 8 and 9, the fixing tool is configured by a bolt member 218 and a nut member 250. The bolt member 218 is made of metal or resin, and has a shaft portion 218A extending in a predetermined direction and a diameter (diameter) larger than the diameter (diameter) of the shaft portion 218A provided at one end portion in the axial direction of the shaft portion 218A. Diameter) head portion 218B. Also, the shaft portion 21
A male screw is formed on the outer peripheral surface of 8A. Moreover, the nut member 250 is comprised with the metal or resin, and the through-hole 256 regarding the thickness direction is formed in the center part. On the inner peripheral surface of the through hole 256, a female screw that is screwed with the male screw of the shaft portion 218A is formed. As shown in FIG. 10, a plurality of protrusions 252 are formed on the outer peripheral surface of the nut member 250. The projecting portion 252 of the projecting portion 252 has directionality, and the nut member 2
When 50 is going to rotate in one direction of rotation (arrow A direction in FIG. 10), the nut member 25
0 engages with the claw member 248, and the rotation of the nut member 250 to one side in the rotation direction is prevented. As a result, even when the bolt member 218 rotates to one side in the rotational direction, the nut member 250
Is in a fixed state, and the degree of screwing between the bolt member 218 and the nut member 250 proceeds.
On the other hand, when the nut member 250 tries to rotate in the other direction of rotation (arrow B direction in FIG. 10), the nut member 250 and the claw member 248 are not engaged, and the rotation of the nut member 250 in the other direction of rotation is not performed. Permissible. As a result, when the bolt member 218 rotates to the other side in the rotation direction, the nut member 250 rotates (co-rotates) together with the bolt member 218. For this reason, even if the bolt member 218 rotates to the other side in the rotational direction in a state where the bolt member 218 and the nut member 250 are already screwed together, the nut member 250 only rotates together with the bolt member 218. The screwing is not resolved.

As shown in FIG. 9, in a state where the bolt member 218 and the nut member 250 are screwed together, the nut member 250 is placed on the flat surface portion 246 of the second protruding piece portion 244.
In particular, the nut member 250 can be positioned on the second projecting piece 244 by forming a hole (not shown) in the second projecting piece 244 and placing the nut member 250 in the hole.

Next, a method for attaching the fixing tool to the substrate case 214 and the case cover 216 will be described. The attachment of the fixing tool to the substrate case 214 and the case cover 216 is performed before the substrate case 214 and the case cover 216 are attached to the back surface of the game board 26, in other words, in a state where they are taken out from the pachinko machine 10.

As shown in FIG. 7, the first flange portion 220 of the substrate case 214 and the second flange portion 224 of the case cover 216 are brought into surface contact, and the first insertion hole 222 and the second insertion hole 226 are communicated with each other. Thus, the first insertion hole 222 and the reduced diameter hole portion 226B of the second insertion hole 226 are connected to form one communication hole.

Next, as shown in FIG. 8, the second insertion hole 2 of the second flange portion 224 of the case cover 216 is used.
The bolt member 218 constituting the fixing tool is inserted from the 26 opening 228. At this time, the tip end portion of the shaft portion 218A of the bolt member 218 reaches the reduced diameter hole portion 226B from the enlarged diameter hole portion 226A of the second insertion hole 226, and is eventually formed in the first protruding piece portion 240 of the substrate case 214. It reaches the first insertion hole 222.

When the distal end portion of the shaft portion 218 </ b> A of the bolt member 218 passes through the first insertion hole 222, it reaches the opening hole portion 242. Here, a nut member 250 is provided on the second projecting piece portion 244, which is the opening hole portion 242, and the bolt member 218 of the bolt member 218 is engaged in a state where the claw member 248 is engaged with the protruding portion 252 of the nut member 250. The distal end portion of the shaft portion 218A is inserted into the through hole 256 of the nut member 250. Then, the bolt member 218 is rotated to one side in the rotation direction (arrow A direction side in FIG. 10).

When the bolt member 218 is rotated in one direction of rotation, as shown in FIG.
8 and the protrusion 252 of the nut member 250 maintain the engaged state.
0 is in a state where it cannot rotate even if it tries to rotate in one direction of rotation together with the bolt member 218. That is, the nut member 250 is in a fixed state even when it receives a rotational force toward one side in the rotational direction. For this reason, relative rotation with respect to the nut member 250 of the bolt member 218 is attained. As a result, as shown in FIG. 9, the bolt member 218 and the nut member 2
The degree of screwing of 50 can be advanced. Thus, the bolt member 218 and the nut member 2
50 is screwed together so that the joined state between the substrate case 214 and the case cover 216 can be maintained, and illegal acts can be prevented. In this way, after the bolt member 218 and the nut member 250 are screwed together, the board case 214 is attached to the back surface of the game board 26.

In the state where the bolt member 218 is completely screwed into the nut member 250, the bolt member 2
The 18 head portions 218 </ b> B are engaged with the stepped portion 230, and the tip portion of the shaft portion 218 </ b> A of the bolt member 218 is screwed into a screw (female screw) hole 254 formed in the second protruding piece portion 244. Thereby, the bolt member 218 is fixed to the substrate case 214.

Here, as shown in FIG. 10, the cheating person moves the bolt member 218 to the other side in the rotational direction (FIG. 1).
When it is rotated in the direction of arrow B in the middle of 0), the engagement state between the claw member 248 and the protrusion 252 of the nut member 250 is released. For this reason, the nut member 250 is not fixed by the claw member 248, and receives the rotational force of the bolt member 218 and rotates together with the bolt member 218. That is, even when the bolt member 218 is rotated to the other side in the rotation direction, the bolt member 218 continues to rotate together with the nut member 250 to the other side in the rotation direction without rotating relative to the nut member 250. Specifically, when the nut member 250 rotates in the other direction of rotation,
As long as the claw member 248 contacts the tip of the protrusion 252 so as to stroke it, the two do not engage with each other. Thereby, even when the bolt member 218 is rotated to the other side in the rotation direction, the screwed state between the bolt member 218 and the nut member 250 cannot be released. As a result, even if the fraudster tries to rotate the bolt member 218 to the other side in the rotational direction, the bolt member 218 is
And the nut member 250 are not released, and the case cover 216 and the substrate case 214 are not released.
Can not be separated, so that fraud can be prevented. The substrate case 21
4 and the case cover 216 are attached to the back surface of the game board 26, the opening hole 24
Since the other constituent members are positioned in the vicinity of 2, the nut member 250 is blocked by the other constituent members. For this reason, once the board case 214 is attached to the game board 26, it is impossible for an unauthorized person to contact the nut member 250. In this way, an illegal act of pulling out the bolt member 218 can be prevented.

As described above, in the first embodiment, since the screwed state of the bolt member 218 and the nut member 250 can be maintained, the bolt member 218 cannot be taken out, and the main control housed inside Unauthorized acts on the substrate 102 can be prevented.

Further, the substrate case 214, the case cover 216, the bolt member 218, or the nut member 25
The case cover 216 and the substrate case 214 can be physically separated by forcibly damaging or breaking 0, but in such a case, the substrate case 214, the case cover 216, the bolt member 218, or the nut The member 250 will leave traces of breakage or breakage. As a result, it is possible to easily and surely find out the fact that fraud has been performed.

In particular, if the bolt member 218 or the nut member 250 is made of resin and set so as to be easily damaged even by a small amount of fraud, the trace can be left immediately and the fact of the fraud can be recognized. it can. For the same reason, the bolt member 218 or the nut member 2
50 may be made of rubber so that the bolt member 218 or the nut member 250 can be easily damaged.

In addition, oil, oil, grease, or the like may be attached to the nut member 250 and the protruding portion 252 to reduce the frictional resistance between the nut member 250 and the flat portion of the second protruding piece portion 244. Thereby, even when the bolt member 218 is rotated to the other side in the rotational direction due to fraud, the frictional force generated between the claw member 248 and the protrusion 252, the back surface of the nut member 250, and the second protruding piece 244 The frictional force generated during the period can be reduced. For this reason, the nut member 250 can be easily rotated to the other side in the rotational direction on the second protruding piece portion 244, and the bolt member 218 and the nut member 250 can be reliably rotated together.

(Second Embodiment)
Next, a pachinko machine according to a second embodiment of the present invention will be described.
In addition, about the structure similar to the pachinko machine 10 which concerns on 1st Embodiment, while attaching | subjecting a same sign, the description is abbreviate | omitted.

As shown in FIGS. 11 to 13, the flat portion 246 of the second protruding piece 244 has a part of the first insertion hole 222 on the extension of the first insertion hole 222 formed in the first protruding piece 240. A rotation adjustment hole (rotation adjustment means) 260 is formed. As shown in FIG. 14, the rotation adjusting hole 2
Reference numeral 60 denotes a non-engagement hole (second recess) 260A having an inner peripheral surface formed in a circle in plan view, and an engagement hole (first recess) in which an inner surface is formed in a hexagon in plan view. 260B and a bottom portion 260C. Specifically, the rotation adjusting hole 260 formed in the flat surface portion 246 of the second projecting piece 244 includes a non-engaging hole portion 260A formed in a shallow portion and a depth direction lower than the non-engaging hole portion 260A. The engagement hole 260B is formed on the side, and the bottom 260C is formed on the lower side in the depth direction of the engagement hole 260B. The non-engaging hole 260A and the engaging hole 260B are formed so as to be continuous in the depth direction. Note that the thickness dimension of the engagement hole 260B is set to be equal to or less than the thickness dimension of a spring washer (elastic member) 262 described later.

Further, the diameter of the non-engaging hole portion 260A is set to be the same as or slightly larger than the diameter of the nut member 264 (the dimension from the center of the nut member 264 to the farthest part).
Further, the engagement hole 260B is set to have substantially the same size and shape as the outer surface of the nut member 264.

Here, in this embodiment, the nut member 264 is an existing nut member having a hexagonal shape in a plan view and having no protrusion on the outer surface.

Further, as shown in FIGS. 11 to 13, the rotation adjusting hole 2 formed in the second projecting piece 244.
A spring washer 262 is provided on the bottom portion 260 </ b> C of 60. The spring washer 262 is freely elastically deformed according to the pressure that affects the vertical direction (axial direction). A nut member 264 is disposed above the spring washer 262. Further, the lower portion of the spring washer 262 is in contact with the bottom portion 260 </ b> C of the rotation adjustment hole 260. For this reason, the spring washer 262 includes the nut member 264 and the bottom portion 26 of the rotation adjustment hole 260.
It is interposed between 0C. The spring washer 262 is twisted and extended in the axial direction in a state where no external force is applied, and the upper end of the spring washer 262 reaches the upper surface of the engagement hole 260B. For this reason, the nut member 264 (no external force acts) is simply attached to the spring washer 2.
Since the nut member 264 is supported by the elastic force of the spring washer 262 in the state of being placed on the upper portion of the 62, the nut member 264 does not reach the region of the engagement hole 260B, and the region of the non-engagement hole 260A. That is, the outer surface of the nut member 264 comes to a position facing the inner peripheral surface of the non-engaging hole 260A. In this state, the nut member 264 is not engaged with the non-engaging hole 260A, and the nut member 264 can freely rotate.

According to the second embodiment, as shown in FIG. 11, when the board member 214 and the case cover 216 are coupled by screwing the bolt member 218 and the nut member 264, the bolt member 218 is the first member. The insertion hole 222 and the second insertion hole 226 are passed through. And the bolt member 218
When the shaft portion 218A reaches the nut member 264, a predetermined pressing force (a pressure larger than the elastic force of the spring washer 262) is applied from the bolt member 218 to the nut member 264. Thereby, the nut member 264 moves to the bottom 260 </ b> C side so as to oppose the elastic force of the spring washer 262. At this time, since the elastic force of the spring washer 262 is smaller than the pressing force from the nut member 264, the spring washer 262 contracts in the axial direction.
When the nut member 264 is moved to the bottom portion 260C side, the nut member 264 may be gripped from the opening hole portion 242 so as not to rotate.

When the spring washer 262 contracts in the axial direction and the nut member 264 moves toward the bottom portion 260C, the nut member 264 eventually reaches the region of the engagement hole portion 260B. At this time, the outer surface of the nut member 264 faces and engages with the inner surface of the engagement hole 260B. For this reason, when the nut member 264 reaches the region of the engagement hole 260B, the nut member 264 cannot be rotated around the central axis. As a result, even if a rotational force acts on the nut member 264 via the bolt member 218, the nut member 264 does not rotate and remains fixed.

Then, when the bolt member 218 is rotated to one side in the rotational direction in a state where the nut member 264 reaches the region of the engagement hole 260B and is fixed, the bolt member 218 rotates relative to the nut member 264. . As a result, the degree of screwing between the bolt member 218 and the nut member 264 advances, and the shaft portion 218A of the bolt member 218 gradually passes through the through hole 256 of the nut member 264. Soon, as shown in FIG. 12, the shaft portion 218A of the bolt member 218 is formed.
Of the bolt member 2 is screwed into a screw (female screw) hole 254 formed in the bottom portion 260C.
18 is fixed to the substrate case 214. At this time, even if the pressing force applied to the bolt member 218 is released, the force generated in the screwed state between the bolt member 218 and the bottom portion 260 </ b> C formed on the second projecting piece portion 244 is applied to the spring washer 262. Because it becomes larger than the elastic force,
The screwed state between the bolt member 218 and the bottom portion 260C formed on the second protruding piece portion 244 can be maintained, and as a result, the engaged state between the nut member 264 and the engaging hole portion 260B is maintained.

In the state where the bolt member 218 is fixed to the substrate case 214, the bolt member 218.
The head portion 218 </ b> B is engaged with the stepped portion 230, thereby completing the connecting operation of the bolt member 218 to the nut member 264. As a result, the substrate case 214 and the case cover 216 are firmly connected by the fixing tool.

Here, as shown in FIG. 13, when the fraudulent person rotates the bolt member 218 to the other side in the rotational direction, the nut member 264 is engaged with and fixed to the engagement hole portion 260B. Therefore, the bolt member 218 advances in a direction in which the screwed state with the nut member 264 is eliminated.
That is, the bolt member 218 moves in the direction opposite to the bottom portion 260C (the second flange portion 224 side of the case cover 216).

When the bolt member 218 moves to the opposite side of the bottom portion 260C by a predetermined distance, the screwed state between the shaft portion 218A of the bolt member 218 and the screw (female screw) hole 254 of the bottom portion 260C is canceled. When the screwing between the bolt member 218 and the nut member 264 is eliminated, the pressing force applied to the nut member 264 from the bolt member 218 is reduced, and the elastic force of the spring washer 262 is eventually increased. .

The pressing force acting on the nut member 264 from the bolt member 218 is applied to the spring washer 2.
When smaller than the elastic force of 62, the spring washer 262 gradually extends in the axial direction. Thereby, the nut member 264 moves so as to be lifted to the first protruding piece 240 side by the spring washer 262. Then, the nut member 264 moves from the region of the engagement hole 260B to the region of the non-engagement hole 260A. Here, the nut member 2
Even if 64 moves to the region of the non-engaging hole portion 260A, the insertion depth of the shaft portion 218A of the bolt member 218 into the nut member 264 is shallow, but the bolt member 218 and the nut member 264 are reduced.
The screwed state is maintained.

When the nut member 264 moves to the region of the non-engagement hole 260A, the outer surface of the nut member 264 and the inner peripheral surface of the non-engagement hole 260A face each other, but the nut member 264 does not engage. Since it is not fixed by the hole 260A, the rotation of the nut member 264 is allowed.

In this state, even if the fraudster rotates the bolt member 218 to the other side in the rotational direction, the nut member 264 only rotates (co-rotates) together with the bolt member 218, and the nut member 264 and the bolt member 218 are screwed together. The condition will never be cleared. For this reason, the bolt member 2
The bolt member 218 and the nut member 264 continue to rotate together only by rotating 18 in the other direction of rotation. As a result, the bolt member 218 cannot be pulled out from the first insertion hole 222 and the second insertion hole 226, and it becomes impossible to separate the board case 214 and the case cover 216 and take out the main control board 102 inside. .

Here, the bolt member 218 or the nut member 264 is forcibly damaged, and the substrate case 21
4 and the case cover 216 may be separated, but in such a case, the bolt member 218 or the nut member 264 is damaged, leaving a trace of fraud.
For this reason, it is possible to easily and reliably recognize the fact of fraud, and to respond quickly.

Similarly to the first embodiment, the bolt member 218 or the nut member 264 is made of resin or rubber, so that a design that is easily damaged is possible. In such a configuration, the bolt member 218 or the nut member 264 may be damaged even by a small amount of fraud, so that traces remain reliably at an early stage of the fraud, and the fraudulent person is discouraged from further fraud. In addition, the hall officials can be informed of the fact of fraud.

Further, by attaching oil, oil, grease or the like to the inside of the rotation adjustment hole 260 of the second projecting piece 244, the nut member 264 and the non-engagement hole 260A in the region of the non-engagement hole 260A. Even when the inner peripheral surface is in contact with each other, the frictional force generated between them can be reduced. As a result, the nut member 264 can reduce the influence of the frictional force received from the inner peripheral surface of the non-engaging hole portion 260A that comes into contact, and can make the nut member 264 easier to rotate.

In each of the above-described embodiments, the present invention has been described by taking as an example a configuration in which the present invention is applied to the main control board case set 210 that accommodates the main control board 102. However, the present invention is not limited to this configuration. The present invention can also be easily applied to cases that accommodate boards related to other games, such as the case set 212, the payout control board case set 202, the launch control board case set 204, and the power board case set 208.

In the above embodiment, the bolt member 218 is connected to the second insertion hole 226 of the case cover 216.
Although the structure inserted from the opening portion 228 of the first case 220 is shown, the first flange portion 220 of the substrate case 214 is shown.
Alternatively, the configuration of the second flange portion 224 of the case cover 216 may be designed to be opposite (reverse) so that the bolt member 218 is inserted from the opening of the first insertion hole 222 of the substrate case 214.

10 Pachinko machines (game machines)
102 Main control board (game control board)
210 Main control board case set (game control board housing member)
214 Substrate case (housing member body)
216 Case cover (housing member lid)
218 Bolt member 222 First insertion hole (first hole)
226 Second insertion hole (second hole)
248 Claw member (rotation adjustment means)
250 Nut member 252 Projection (projection)
260 Rotation adjustment hole (Rotation adjustment means)
260A Non-engagement hole (second recess)
260B engagement hole (first recess)
262 Spring washer (elastic member)

Claims (1)

A gaming machine comprising a game control board for controlling a game, and a game control board housing member for housing the game control board,
The game control board housing member is
A housing member body having a first hole formed along the thickness direction;
The first member is joined to the housing member main body so as to surround the game control board between the housing member main body and is formed along the thickness direction and joined to the housing member main body.
A housing member lid provided with a second hole communicating with the hole;
A fixing tool for maintaining a joined state between the housing member body and the housing member lid;
Have
The fastener is
A bolt member inserted from the opening of the first hole or the second hole and interposed between the first hole and the second hole;
The bolt is engaged with the bolt member by rotating relative to the bolt member toward one side in the rotational direction, and the bolt is rotated relative to the bolt member toward the other side in the rotational direction. A nut member for releasing screwing with the member;
Have
Either the housing member lid or the housing member main body engages with the nut member to be rotated in one direction of rotation, thereby allowing relative rotation between the nut member and the bolt member. Rotation adjusting means for rotating the nut member and the bolt member together without engaging with the nut member to be rotated in the other direction of rotation,
Provided,
The rotation adjusting means is formed in a part of an inner peripheral surface of the first hole or the second hole, and is engaged with an outer surface of the nut member to prevent rotation of the nut member. A second recess formed on a part of the inner peripheral surface of the first hole or the second hole and allowing the nut member to rotate without engaging the outer surface of the nut member. ,
The bottom of the first hole or the second hole is interposed between the bottom of the first hole or the second hole formed with the first and second recesses and the nut member. An elastic member that adjusts the distance between the nut member and the nut member by elastic deformation;
When the pressing force from the bolt member acting on the nut member is greater than the elastic force of the elastic member, the elastic member is elastically deformed and the bottom of the first hole or the second hole and the nut The outer surface of the nut member and the first recess are engaged with each other by reducing the distance from the member,
When the pressing force from the bolt member acting on the nut member is smaller than the elastic force of the elastic member, the elastic member is elastically deformed and the bottom of the first hole or the second hole and the nut A gaming machine, wherein the engagement state between the outer surface of the nut member and the first recess is released when the nut member is moved to the second recess side with an increased distance from the member.

Images