JP2894800B2 - Pachinko machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention is advantageous for a player in connection with the result of stopping variable display performed by a variable display device being a predetermined special display mode. And a game machine such as a pachinko machine capable of generating a special game state.

(Prior Art) Conventionally, a variable display device and a specific winning opening are provided in a game area, and a variable display device starts variable display of a plurality of identification information based on a game ball winning in the specific winning opening. ,
There are known gaming machines capable of generating a special gaming state advantageous to a player when the variable display stop result mode is a special display mode.

(Problem to be Solved by the Invention) In such a gaming machine, the probability that the stop result mode of the variable display performed by the variable display device becomes the special display mode is a predetermined fixed probability. In order to change the profit status of each gaming machine,
The winning frequency of the game ball of the specific winning opening for starting the variable display has been changed.

Conventionally, in order to change the winning rate of the specific winning opening, it is necessary to adjust obstacle nails related to the winning rate of the specific winning opening. However, even with very subtle adjustments, the winning rate of these obstacle nails changes, so skill is required to make such adjustments, and if the adjustments cannot be made accurately, either the game store or the player will have a profit state. There was a problem that it was too biased. In addition, there is a problem that the work load is large because adjustment work of obstacle nails is required for a large number of gaming machines installed in a game arcade.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and can easily and accurately adjust the probability that a special display mode in a variable display relating to a special game state advantageous to a player will be established. It is an object of the present invention to provide a gaming machine capable of maintaining a profit balance between a game store and a player without making adjustments.

(Means for Solving the Problems) In order to solve the above problems, the present invention provides a game board (1) disposed on a front frame (17) that can be opened and closed with respect to a machine frame (for example, a main body frame 16). A variable display device (4) capable of variably displaying a plurality of pieces of identification information, and a special display mode (for example, “7, 7, 7 , Etc.), a gaming machine (e.g., a pachinko machine) capable of generating a special gaming state advantageous to the player, including a predetermined case, and a stop result of the variable display. A control device (100) that controls the mode to be the special display mode with a required probability, wherein the control device determines the probability that the stop result mode is the special display mode based on an external operation in a plurality of steps (for example, , 1 /
240, 1/250, 1/260, 1/270, 1/280, 1/290) key operation type probability setting change means (for example, setting key switch 92 etc.) capable of changing the setting; Setting display means (for example, a setting display unit 93) capable of displaying setting information set by the means, and an insertion part for a key (for example, an operation key 91) for operating the probability setting changing means is provided. The setting device is provided on a predetermined surface of the case, and the setting display means is provided so as to be visible from the predetermined surface side, and the control device is provided with the predetermined surface facing the rear surface side of the gaming machine. It was arranged at the site.

(Operation) According to the present invention, the control device including the predetermined case controls the variable display device to stop the variable display on the variable display device in the special display mode with a required probability.

The control device is provided with a key-operated probability setting change unit and a setting display unit. When a key is inserted into an insertion portion of a key provided on a predetermined surface of the case and operated, the probability setting is set by the probability setting change unit. Is changed. The setting information set by the probability setting change means is displayed on the setting display means, and this display is displayed so as to be recognizable from a predetermined side of the case, that is, from outside the case. Therefore, when changing the setting of the probability, it is possible to easily and accurately change the setting from outside the case without having to open the case.

Since the control device including the above case is disposed at a predetermined portion on the back side of the gaming machine, it is usually configured such that a player or the like cannot illegally change the setting, and when performing the setting change, When the front frame is opened, the predetermined surface of the case facing the back side of the gaming machine is moved so that the setting can be easily changed, so that the setting can be easily changed while the control device is attached to the gaming machine. become.

(Example) In FIG. 1, on the surface of the game board 1 of the pachinko machine,
A variable display device 4 is provided substantially at the center of the game area 3 surrounded by the guide rail 2, and a variable winning device 5 is provided below the variable display device 4.

A first specific winning opening 6 is provided directly below the variable display device 4, and a second specific winning opening 7 is provided on the right side.

As will be described later, if you win these special winning openings 6,7,
This is detected by the switches S1 and S2, and the variable display operation of the variable display device 4 is started.

A start port 8 is provided directly below the variable winning device 5. When the switch S3 detects that the variable opening result is a big hit and that the starting port 8 is won, a special game is generated and the variable winning device is generated. 5 opens to a state where game balls can be easily received.

Reference numeral 9 denotes a natural winning opening, reference numeral 10 denotes a general winning opening, reference numerals 11a and 11b denote tulip-style sleeve winning openings, and reference numeral 12 denotes an out opening. 13
Reference numerals a and 13b denote game lamps that are turned on during the game.

As shown in FIG. 2, a front frame 17 mounted to be openable and closable with respect to the main body frame 16 is provided at a lower portion of the game board 1 with a supply tray 13 for pachinko balls, a tray 14, and a hitting ball launching device. Operation unit 15
Is provided, and the game ball hit by the hit ball launching device is guided by the guide rail 2 and enters the game area 3.

An indicator light device 20 for displaying the operating state of the game and the like is provided above the front frame 17. As shown in FIG. 3, a matrix type operation state display LED 22 capable of displaying characters, numerals, and the like is provided in the center of a substrate 21 attached to the front frame 17, and a large hit occurs on the left and right sides. A right occurrence lamp 23 that flashes at the time and a special game lamp 24 that flashes at the time of occurrence of the special game are provided.

A transparent or translucent display cover 25 is attached to the operation state display LED 22, the lamps 23 and 24 via a protective frame 26.

Next, the configurations of the variable display device 4 and the variable winning device 5 will be specifically described.

First, as shown in FIG. 4, the variable display device 4 comprises three columns of variable display units A, B, and C for displaying numbers, symbols, and the like.
The board which segment LED30a, 30b, 30c attaches to game board 1
When the special winning opening 6, 7 is won, the display of the variable display sections A, B, C changes, and after a predetermined time, these displays are stopped in order from the left, and these stoppages are stopped. When the combination of the display of the respective columns at the time becomes a specific mode, for example, “7, 7, 7”, a jackpot is won, and a right for a special game is generated.

FIG. 5 shows the contents of the symbols displayed by the LEDs 30a, 30b, 30c.

Also, at the time of occurrence of a special game,
Opening times display LED3 that displays the opening times of the variable winning device 4
2, and a winning number display LED 33 for displaying the number of winning in the variable winning device 4 at one opening.

A game mode display unit 35 is attached below the variable display units A, B, and C. The game mode display unit 35 switches the game mode to A, B, or C due to occurrence of a special game, as described later.
The switching mode state is displayed, and the jackpot occurrence probability of the variable display on the variable display device 4 is switched with the mode switching. In this embodiment, the jackpot occurrence probability is relatively low in the A mode, but the jackpot occurrence probability is extremely high in the B and C modes, so that the jackpot occurs immediately.

As shown in FIG. 1, a storage number display LED 36 is provided on the surface of the starting port 8 to store and display the number of game balls that have won the starting port 8 when a special game has occurred.

Next, as shown in FIGS. 6 and 7, the variable winning device 5 has an opening 41 formed in a substrate 40 attached to the game board 1,
In order to open and close this opening 41, a pair of left and right opening gates
42a and 42b, and a turning flap 43 that turns 90 degrees forward and opens.

The pivoting flap 43 has left and right hinge pins 44 at the base end,
The bracket 40 is rotatably supported by a bracket 45 attached to the back surface of the bracket 40, and swings back and forth around the hinge pin 44. Also, a return spring 46 is provided to elastically bias the turning flap 43 toward the closed position, and the return spring 46 engages with a pin 47 protruding from an end of the turning flap 43, When the other end is engaged with the locking pin 48 of the substrate 40 and the turning flap 43 is free, the opening 41 is always closed.

Left and right opening / closing gates 42a, 42b are arranged inside the turning flap 43 in a completely closed state.The opening / closing gates 42a, 42b push the turning flap 43 against the return spring 46 from inside. It is designed to open while pushing forward, and when fully open, the open / close gates 42a, 42b
Is on the upper surface of the turning flap 43.

The left and right opening / closing gates 42a, 42b can be opened by turning 90 ° forward in a horizontal plane about the base rotating shaft 51 while the distal end of the arm 50 is formed in a mountain shape.

The open / close gates 42a and 42b are housed in a base box 52 attached to the back surface of the substrate 40, and are fixed to a pair of left and right rotating shafts 51 provided through the base box 52. The end of each rotating shaft 51 protrudes from the upper surface of the base box 52, and gears 53a and 53b are attached to the protruding portions, respectively. An idler gear 57 that meshes with a drive gear 56 of a drive (large winning opening) motor 55 and that is also meshed with the drive gear 56 is rotatably supported by a protruding shaft 58 provided on the upper surface of the base box 52. , This idler gear 57
Are in mesh with the other gear 53b.

Therefore, the left and right gears are
53a and 53b rotate in the opposite directions to each other.
a, 42b are closed inward or open outward synchronously.

A motor position detection switch S6 is provided to detect the rotational position of the drive motor 55. In this embodiment, since each gear has the same number of teeth, the rotation angle of the motor 55 required to open the open / close gates 42a, 42b from the fully closed position to the fully open position by 90 ° is 90 °. Become. Therefore,
The switch S6 for detecting the rotational position of the motor 55 is
A part of 56 is cut out by a rotation range of 90 °, and this is optically or magnetically detected.

Next, the opening 41 is located on the lower surface on the back side of the opening 41.
A pair of left and right inclined shelves 58a, 58b for guiding the entered game ball
A count switch S4 for detecting a winning number is attached to the center of the inclined shelf plates 58a, 58b.

In this way, the variable winning device 5 wins from the display result of the variable display device 4 and a special game right is generated. Thereafter, when another game ball wins in the starting port 8, the above-mentioned open / close gates 42a and 42b Open right and left, and at the same time, the turning flap 43 opens back and forth, and a special game is executed.

FIG. 8 to FIG. 10 show nails 60 for guiding game balls to the above-mentioned specific winning ports 6, 7 and starting port 8 and the like. FIG. Plastic pins 64 for covering the front surface of an entrance 63 such as a winning opening with a transparent member 62, and guiding game balls on both upper sides of the entrance 63, are integrally provided on the substrate 65. .

FIG. 9 shows an example in which the pin 64 supporting the transparent member 62 is also used as a guide nail although it is not an integral type. Also, the tenth
The figure shows a case where a hollow pin 66 with a base is attached to the game board 1 by a nail 67.

In any case, the guide nail is set in an unadjustable (unnecessary) state as described above, and as described later, the occurrence of the special game is performed based on the probability of occurrence of the jackpot of the variable display result.
The control of the payout rate is not performed based on the winning rate of the special winning openings 6, 7 and the starting opening 8.

FIG. 11 shows a back mechanism of the game board 1, in which 71 is a tank for storing prize balls, 72 is an alignment rail for aligning the prize balls guided from the tank 71, and 73 is a prize ball when the prize balls are discharged. Is a discharge gutter leading to the supply tray 13 on the front of the game board 1, 74 is a prize ball box also connected to the catch tray 14, 75 is a motor of the hit ball launching device, and 76 is a driving hammer for launching.

A control device 100 for controlling various electric devices such as the variable display device 4 and the variable winning device 5 is attached to the rear surface. The control device 100 is connected to an external power supply via a plug 78 of a power cord 77.

The specific configuration of the control device 100 is shown as a block diagram in FIG.

The control device 100 is configured by a microcomputer including a CPU, a RAM, a ROM, and the like, and based on data stored in the ROM by an arithmetic program stored in the RAM, a switch for detecting a winning in the specific winning opening 6, 7 or the starting opening 8. S1, S2, S3, count switch S4 of variable winning device 5, motor position detection switch
S6, receiving each detection signal of the probability setting switch S5 described below, etc., the variable display units A, B, C, the game mode display unit 35, the right generation lamp 23, the special game lamp 24, the game lamps 13a, 13b,
Open count LED 32, winning number LED 33, stored number display
It controls the operation of the LED 36, the operation state display LED 22, the drive motor 55 of the variable winning device 4, the setting display unit 86 of the probability setting unit 90 described later, and the like.

Reference numeral 101 denotes a low-pass filter for shaping the waveform of input data to the CPU, 102 denotes a buffer gate, 103 denotes an output port for outputting output data from the CPU, and 104 denotes a driver (drive circuit). Reference numeral 105 denotes a frequency dividing circuit, reference numeral 106 denotes a power supply circuit, reference numeral 107 denotes a sound generator for generating sound by an output of the CPU, and reference numeral 108 denotes a speaker.

On the other hand, as shown in FIG. 13 (A), a probability setting device 90 attached to the control device 100 to adjust the probability of occurrence of a jackpot is provided with a pin 83 through a small hole 82 provided on the back surface of the case of the control device 100. Is provided and a setting switch S5 which is turned on when the setting button 84 is pressed is provided.
A setting display section 86 on which the LED display changes is formed on the case surface.

When the power of the control device 100 is turned on while pressing the setting button 84, the setting display section 86 flashes. When the setting button 84 is pressed as it is, the numerical value of the setting display section 86 is incremented by one, and then the power is turned on. When the switch is turned off and then turned on again, data corresponding to the numerical value (set value) displayed on the setting display unit 86 is stored in the RAM of the control device 100 as a random number value of the variable display device 4. After this storage, the setting display section 86 is turned off.

A jackpot occurs due to a combination of numbers on the variable display unit 4, and a random number value for adjusting the probability of occurrence of the jackpot is selected.
, The jackpot probability is 1/240, 2 is 1/2
50, 3 = 1/260, 4 = 1/270, 5 = 1 /
In the case of 280 and 6, it is set to 1/290.

However, as shown in FIG. 14, this is, as described above, when the gaming mode at the time of right generation is A, and will be described in detail later. Has a very high probability of 1/20. Therefore, the probability setting can be adjusted for mode A, but cannot be adjusted for modes B and C.

Then, when the setting button 84 is pressed, the preset numerical value is displayed. When the setting button 84 is pressed again, the setting display section 86 is turned off. The probability setting device 90 can be housed in a special case without being attached to the control device 100 and installed at another position of the pachinko machine. Further, a backup battery 87 is provided so that the stored value of the RAM does not disappear due to power interruption or the like. When the power supply voltage value falls below a predetermined value, the power supply of the RAM is switched to the backup battery 87. 88 covers the backup battery 87 during manufacturing
Insulation sheet sandwiched between 89 and removed when used.

As shown in FIG. 13 (B), the probability setting device 90 includes a password input button 95 and a front frame 17 of the pachinko machine.
A setting key switch 92 which can be operated by an operation key 91 for unlocking the key, and a setting display section 93 for displaying a set numerical value.
And a setting completion button 94, enabling the setting of the probability to be changed when a predetermined password is input, inserting the operation key 91, and operating the setting key switch 92 to change the numerical value of the setting display section 93. When a predetermined numerical value has been selected, the setting button 94 may be pressed to store the random number corresponding to the numerical value in the RAM of the control device 100.

Next, regarding the control content executed by the control device 100,
This will be described with reference to FIGS. 15 to 21.

FIG. 15 shows a main routine, and FIGS. 16 to 18 show an interrupt routine. When the power of the control device 100 is turned on, the main routine and the interrupt routine are started.

In the main routine of FIG. 15, the I / O ports and RAM are initialized, the game processing is waited, and the random number value is set by the probability setting device 90 on condition that the power of the management device is turned off. Make changes possible.

First, when the setting switch S5 is turned on for setting the probability (setting switch flag = 1), the setting flag is set to 1 by turning off the power of the management device, and the setting display is blinked to set the probability setting. Operate the setting switch (push button) of the container 90 to select the set value. Upon completion of the selection, the setting switch flag is set to 0 (steps 0.01 to 0.08).

When the setting flag is 1, it is determined that the setting is completed, and the return flag and the setting flag are both set to 0 (steps 0.09 to 0.1).
2). Note that when the return flag is 1, steps 0.12 to
At 0.15, the return flag is set to 0, and the internal register is restored.

After clearing the RAM in step 0.13, depending on whether or not the special game flag = 1, one of the special winning openings 6, 7 is selected, and it is determined whether or not the switch S1 or S2 is turned on. At this time, the process shifts to a game process described later (steps 0.16 to 0.19).

In other words, the variable display device 4 is started to operate by winning the specific winning openings 6 and 7. However, it does not operate regardless of the winning, and either one is selected depending on the state of the special game flag. The special winning opening for starting the operation of the variable display is different between during the special game and other times.

The interrupt routine shown in FIG.
This interrupt processing is for executing the interrupt processing shown in the figure. This interrupt processing reads the random number value of the big hit from the RAM at the time of detecting the winning in the starting port 8 with the start of the game, changes the probability setting during operation, The timer of the main routine is updated, the output of the sound is controlled, and the display symbols and the like on the display device are read.

At the start of the pachinko game, it is detected from the signals from the detection switches S1 to S3 whether or not a specific winning opening 6, 7 or the starting opening 8 has been won, stored in the RAM, and first, the start switch S3 is turned on. Determine if it is.

When the start switch S3 is ON, a special game flag that becomes 1 when a special game occurs is determined as described later, and it is determined whether or not the special game flag = 1.

If the flag is 1, it is determined whether or not the maximum value of the number of start storages is 8 or less.

When a jackpot right is generated, a special game is performed by winning in the starting port 8, but this can be repeated up to eight times each time the winning port 8 is won. When the special game flag = 1, the number of winnings to the starting port 8 is stored.

Next, when the random number value is changed by the probability setting unit 90, the process proceeds to steps 2.07 to 2.11, the setting switch flag is set to 1, the result is determined, and the setting display is updated in the same manner as described above. Or turn on the setting display.

If there is no change, the setting switch flag is set to 0 and the display is turned off (steps 2.12 and 2.13).

Next, the timer in the main routine is updated, and the necessity of audio output is determined, output to the sound generator as necessary, and the symbols are read out from the variable display device 4 and stored (steps 2.14 to 2.18). .

The interrupt routine shown in Fig. 18 is an interrupt for saving the contents of RAM when the power is turned off. The internal register is saved in RAM, the return flag is set to 1, the I / O port is initialized, Back up power (step
3.01 to 3.04).

The game processing routine shown in FIGS.
In FIG. 15, this is started by winning the specific winning opening 6 or 7 (see steps 0.16 to 0.19). First, the rotation (variable) display of the LEDs A, B, C of the variable display device 4 is started,
A character being rotated is displayed on the operation state display LED, the in-game signal is turned on, and a sound is output (steps 4.01 to 4.04).

Next, the random number value read and stored in the interrupt processing of FIG. 17 is taken out, and it is determined whether or not a big hit has occurred.

Therefore, first, it is determined whether or not the right occurrence flag = 1, and when the flag is 1, a right random number value having a high probability of occurrence of a jackpot is selected when the game mode is a B or C mode described later. Is compared with the actual random value (steps 4.06 and 4.07).

On the other hand, when the right occurrence flag is not 1, it is determined in steps 4.08 to 4.18 which of the set values 1 to 6 selected by the probability setter 90, and the corresponding jackpot random numbers 1 to 6 are further determined. Is compared with an actual random number, and if they match each other, a jackpot is won.

If it is a jackpot, a jackpot symbol is taken out, and if not, a lost symbol is taken out (steps 4.19, 4.20).

Next, in steps 4.21 to 4.23, the control waits for a fixed stop time to elapse, and stops the symbols in the order of the LEDs A, B, and C of the variable display device. The stop symbol differs depending on whether the hit is a jackpot or not. In the case of the jackpot, for example, the display of “7, 7, 7” is selected.

If it is a big hit, it is determined in step 4.24 whether or not the game mode display is A, and if it is A, step 4.
At 25 to 4.28, the right generation flag is set to 1, the special game shown in FIG. 20 is entered, the game mode display is switched to B, and the right generation lamp blinks.

If the game mode is not A, it is determined at step 4.29 whether or not game mode display = B. If B, at step 4.30 to 4.31, a special game is performed and the game mode display is switched to C.

If the game display mode is not B in step 4.29 (that is, the game mode = C), the process shifts to steps 4.32 to 4.36 to shift to the special game and set the right generation flag to 0.
The game mode display is set to A, the right generation lamp is turned off, and the sound is turned off.

On the other hand, if it is not a jackpot, the operation status display LE
D is displayed as usual, the game signal output is turned off, the sound is lost, and a loss wait time process is performed (steps 4.38 to 4.41), and the process returns to the previous state.

FIG. 20 shows a special game routine. When the special game is started, the special game flag is set to 1 and the game signal output is turned off.

A counter for counting the number of times the variable winning device 5 is opened is set to 0, a counter for storing the winning number in the starting port 8 is set to 0, initialization is performed, and then the special game lamp 24 blinks.

Further, the counter that counts the number of winnings when the variable winning device 5 is open is set to 0, a fanfare or the like with a big hit is output, and the operation state display LED displays a big hit.

Then, the timer that sets the opening time (for example, 10 seconds) of the variable winning device 5 is set to 0 (steps 5.01 to 5.09).

Then, in steps 5.10 to 5.13, it is confirmed that the start storage counter is equal to or less than the maximum value of 8, and if the start storage counter is larger than the release counter, the count value of the release counter is increased by one. Then, the opening process of the variable winning device 5 shown in FIG. 21 is started, and thereafter, the process returns to step 5.06, and the same operation is repeated up to eight times.

When the winning opening 8 is won after the jackpot right is generated, the processing shifts to the opening processing of the special game. In this case,
Regarding the start winning number, the start port switch S3 is turned on when the special game flag = 1 in the interrupt routine of FIG.
Each time becomes, the stored value of the start storage counter is incremented by one, so that the transition to the special game can be determined by looking at the start storage counter value.

The opening number counter value counts the number of times the variable prize winning device 5 is actually opened, that is, the number of cycles in which a special game is generated. This should not be larger than the number of winnings in the starting port 8, but if In such a case, the opening process is not performed, the process returns to the original state, and the start storage counter value is determined again.

On the other hand, if the start memory value exceeds seven before the maximum value, the process proceeds to steps 5.14 to 5.20, where the value of the release number counter is increased by 1, and after the last release processing is performed, the special game lamp is executed. To OFF, reset the winning number counter, open counter, start memory counter, respectively,
The special game flag is set to 0 to end the special game.

Next, the open / close gates 42a, 42 of the above-mentioned variable winning device 5
The release processing of b will be described with reference to FIG.

With the sound open, drive (grand prize mouth) motor 55
Is rotated counterclockwise until the motor detection switch S6 is turned on (steps 6.01 to 6.04).

Thereby, the left and right opening and closing gates 42a,
42b rotates outward from the fully closed position, and at the same time, the turning flap 43 expands forward and opens the opening 41. For this reason,
A state in which a game ball is very easy to win the variable winning device 5 is achieved.

The gaming balls that have won the variable winning device 5 are counted by the winning number counter when passing through the count switch S4, and when the winning number counter reaches 10, or the opening timer of the variable winning device 5 sets the set time (10 seconds). Until you reach
Maintain the open state (steps 6.05-6.08).

When the set period has elapsed, the variable winning device 5
Motor 55 is now clockwise
Rotate until S6 turns ON, and together with the open / close gates 42a, 42b,
The turning flap 43 returns to the fully closed position, and one cycle of the special game ends (steps 6.09 to 6.11).

In this manner, the special game in which the opening and closing gates 42a and 42b are opened is as shown in steps 5.06 to 5.13 in FIG.
Thereafter, the game can be continued until the number of winnings in the starting opening 8 becomes eight. After the continuation of eight cycles, this special game is finished.

Next, each control described above will be described with reference to FIG. 22, which is a functional block diagram.

When the setting switch is set to set the jackpot occurrence probability by the probability setting device 90, the hit random number value selecting means 200 for selecting the set random value from among the hit random values 1 to 6 is configured. Is done.

The selected random number value is compared with the actual random number extracted from the random number generation means 202 by the random number determination means 201 to make a determination.

Reference numeral 203 denotes a symbol generating unit, and a big hit symbol and a lost symbol are extracted by a symbol extracting unit 204.

When the power supply is turned on or off, backup control is performed by a battery when the power supply is turned off, and the selected random number value is held.

The variable display part A,
In order to activate B and C, a switching means 205 for switching a specific winning opening, and an operation timing control means 206 are configured, take out a random number from the hit random number value selecting means 200, determine, and determine a symbol of a big hit and a miss. Take out each display variable means 20
Operate 7A, 207B and 207C.

Each of the display variable means 207A, 207B, 207C, while synchronizing with the display update pulse, transmits the symbol signal to the operation timing control means.
Display comparing means 208A based on the timing signal from 206,
Accept from 208B, 208C.

In order to determine the jackpot, a jackpot determination unit 209 is configured to read the output of the display variable units 207A, 207B, 207C and determine a jackpot when the respective displays at the time of stop match.

The determination result of the hit determination unit 209 is output from the hit control unit 210 to the game mode control unit 211, the right generation control unit 212, and the special winning opening control unit 213.

The winning control means 210, based on the winning in the starting port from the storage control means 214 that stores the winning in the starting port, to generate a special game, a special game lamp, a winning number display
Controls the operation of the LED, the stored quantity table LED, and the release count display LED.

Further, the game mode control means 211 controls the game mode display section, and the right generation control means 212 activates the right generation lamp and outputs a right generation signal to the random number selection means 200. The special winning opening control means 213 controls rotation of the special winning opening motor.

In this way, when a winning in the starting port is detected when a jackpot is generated, a special game is performed and the variable winning device 5 is opened.

When a hit occurs, the operation state display means 215 controls the operation of the speaker and the game lamp, and sets the operation state display LED to a hit display.

Note that one special game is controlled by the control means 210 when a signal from the count switch is input, and the continuation of the special game is also up to eight times by the signal from the winning storage control means 214. Is controlled as follows.

Next, the overall operation will be described.

With the start of the pachinko game, when a game ball hit into the game area 3 enters the specific winning opening 6, the display of the variable display units A, B, and C of each row of the variable display device 4 is changed to a big hit game. Challenge is started.

However, the specific winning opening that is valid is switched from the specific winning opening 6 to 7 during the occurrence of the special game. Therefore, when the player wins the special winning opening 7 which is not valid at the normal time, the variable display device 4 is not started, and the winning ball is simply discharged.

After the operation of the variable display device 4, if the combination of the display in each column when the variable display is stopped becomes a predetermined specific mode, for example, “7, 7, 7”, a jackpot right is generated.

If the winning opening 8 is won when a jackpot right is generated, the game shifts to a special game. The open / close gates 42a and 42b of the variable winning device 5 open rightward and leftward, and the turning flap 43 expands forward, changing to a state in which game balls are very easily received.

For this reason, the game balls launched into the game area 3 can win the variable winning device 5 with extremely high probability, and a large number of prize balls are discharged in accordance with the number of the winning balls.

In one special game, open and close gates 42a, 42
b is kept in the open state for a predetermined time (10 seconds) or until the number of winning balls reaches 10 during this time, and one cycle is completed by achieving either of them.

Then, after this, when the winning opening 8 below the variable winning device 5 is won, the process moves to the next second cycle, and the variable winning device 5 is opened again.

In this way, the special game can be repeated only up to eight times, and the player can acquire many prize balls in the meantime.

By the way, the special game is updated to the next cycle by winning in the starting opening 8, but the winning number in the starting opening 8 is eight.
When the number of pieces is reduced, the special game ends even if the actual number of times of opening does not reach eight.

For this reason, if the winning result is continuously given to the starting port 8 after the display result of the variable display device 4 becomes a big hit, the game ends before the actual number of times of opening becomes eight times, and the player has a sufficient prize. I can't get the ball.

However, the starting opening 8 is located immediately below the variable winning device 5, and when the open / close gates 42a, 42b of the variable winning device 5 are open, the upper portion of the starting opening 8 is covered by the turning flap 43. In this state, the game ball rarely wins after the starting port 8, and the next win is when the open / close gates 42a and 42b are closed.

Therefore, after one cycle is completed, the starting port 8
Therefore, the number of winnings in the starting opening 8 and the number of times the variable winning device 5 is opened substantially match, and the player can surely exercise the right eight times. The danger of such disadvantages is very small.

In addition, the transition to the special game switches the effectiveness of the specific winning ports 6,7. In other words, before winning the special game, when the player wins the specific winning opening 6, the operation of the variable display device 4 is started, but during the special game, the valid winning device is switched to the specific winning opening 7, so that the right is prevented from disappearing. There is no need to change the handle operation position so as not to enter the specific winning opening 6.

By the way, the winning probability when the variable display device 4 is activated by winning the specific winning openings 6 and 7 is a jackpot occurrence probability, which varies depending on the game mode at that time,
As shown in FIG. 14, the occurrence probability in the A mode is a low value of 1/240 to 1/290, depending on the setting at that time, but in the B and C modes, It is a very high value of 1/20.

This game mode is switched every time a special game occurs. In the case of the A mode, even if it is difficult to generate a big hit, B,
In the case of the C mode, a jackpot is likely to be generated, and the expectation for the special game is remarkably increased.

Therefore, while watching the display on the game mode display section 35,
Know the current game mode, and if you are in the A mode, by the next special game, B, C likely to hit big
Since the mode continues, it is possible to wait for the mode change with expectation.

In this way, the occurrence of special games is quite difficult, but depending on the game mode at that time, the occurrence of jackpots is not a dream, and special games that have the opportunity to acquire a large prize ball, until now, Since the game occurs only with a relatively low probability, the game of this kind of pachinko machine, which tends to be monotonous, can be made very varied and interesting.

On the other hand, the occurrence of a big hit in the A mode can be freely adjusted by the probability setting device 90 according to the situation.

Therefore, in order to adjust the payout rate of pachinko machines, it is not necessary to adjust the nails around the specific winning ports 6, 7 and the starting port 8 to change the winning rate for these, and the probability of a jackpot occurrence By changing, the payout rate can be easily adjusted.

As a result, it is not necessary to perform a nail adjustment that requires skill and a great deal of labor and time for the operation, and the game shop also has an advantage of excellent handling operability and manageability.

In addition, even if the winning rate of the special winning openings 6, 7 is increased, the winning rate can be appropriately suppressed by selecting the probability of occurrence of a jackpot, and as a result, the variable display device can be obtained by winning the special winning openings 6, 7. 4, the chances of a big hit increase, and the interest in the game can be raised accordingly.

If it is not necessary to adjust the obstacles for the special winning openings 6, 7 etc. as described above, the synthetic resin, etc., which cannot bend the nails to the winning openings 6, 7 etc. from the outside due to wrongdoing by the player By integrally molding the above, the motivation of cheating can be eliminated, and the soundness of the game can be further enhanced.

The nail may be formed of a synthetic resin or a nail made of a shape memory alloy that always returns to the initial shape.

In this embodiment, the specific winning ports 6 and 7 are switched to the occasion of the occurrence of a special game, but may be invalidated instead of being moved.

Further, when the occurrence probability of the big hit is low, that is, when the variable display of the variable display device 4 is stopped in a combination of the big hit symbols when the game mode is A, the occurrence probability of the next and the next big hit is increased. Regardless of the game mode, when the variable display of the variable display device 4 is stopped at a combination of special symbols among the symbols of the jackpot, the probability of occurrence of the next jackpot may be increased.

In addition, the variable display device 4 starts variable display when a specific winning opening 6 or 7 is won, and when a special game right is generated due to a combination of symbols at the time of stoppage, the variable opening device 5 is activated. To open a special game,
In this case, a predetermined variable winning device or the like is operated on condition that the symbol combination at the time of stopping the variable display of the variable display device 4 is a big hit symbol combination, and a hit ball wins at a specific position of the variable winning device. Thus, a special game right may be generated, and if the player wins the starting port 8 at this time, the game may be shifted to the special game with the variable winning device 5 opened. In addition, the positions of these specific winning ports 6, 7 and starting port 8,
Alternatively, the number of installations, the configuration of the variable prize winning device 5, and the like are not limited to this embodiment, and changes can be made freely within the technical idea of the present invention.

Similarly, the probability setting device 90 is attached to the control device 100 of the back mechanism of the pachinko machine, but its installation position can be freely changed,
As a backup method when the power is turned off, a battery is mounted on the board.
EPROM may be used.

(Effects of the Invention) According to the present invention, there is provided a control device configured to include a predetermined case and configured to control a variable display stop result mode on the variable display device to be a special display mode with a required probability. A key-operated probability setting change unit capable of changing the probability that the stop result mode of the variable display becomes the special display mode based on an external operation in a plurality of stages; and display setting information set by the probability setting change unit. With the provision of the possible setting display means, the probability setting change means can be operated while watching the display of the setting display means, so that the occurrence probability of the special display mode can be easily and accurately changed, and It is possible to maintain an appropriate profit balance between the game and the game store. Further, by changing the setting of the probability by operating the key, it is possible to simultaneously realize the function of preventing the change of the setting by a person who does not have a key and the function of changing the setting of the probability.

In addition, a key insertion portion for operating the probability setting change means is provided on a predetermined surface of the case, and the setting display means is provided so as to be visible from the predetermined surface side. In addition, the control device can be protected by the case, and the setting can be changed easily and accurately from outside the case without opening the case.

In addition, since the control device is disposed at a predetermined portion on the back side of the gaming machine with the predetermined surface of the case related to the probability setting changing means and the setting display means facing the back side of the gaming machine, the In addition to preventing unauthorized change of settings by the user, etc., when making setting changes, the front frame is opened and the control device is arranged at a predetermined part on the back side of the gaming machine, easy and accurate setting Change work can be performed.

[Brief description of the drawings]

1 is a front view of a game board showing an embodiment of the present invention, FIG. 2 is a perspective view, FIG. 3 is an exploded perspective view of a display lamp, FIG. 4 is a front view of a variable display device, and FIG. 6 is an exploded perspective view of the variable winning device, FIG. 7 is a perspective view of the variable winning device, FIG. 8 is a perspective view of the winning opening, FIG. 9 is a perspective view of the variable winning device, Fig. 10 is an illustration of nail installation.
11 is a front view of the back mechanism of the pachinko machine, FIG. 12 is a block diagram of the control system, FIGS. 13A and 13B are perspective views of the probability setting device, and FIG. 14 is a probability of the probability setting device. FIG. 15 to FIG. 21 show a control operation routine executed by the control device. FIG. 15 is a flowchart of a main routine, and FIG. 16 and FIG. Flowchart of a routine, FIG. 18 is a flowchart of an interruption routine at the time of power stop, FIG. 19 (A)
(B) is a flowchart of a game processing routine, FIG. 20 is a flowchart of a special game routine, FIG. 21 is a flowchart of a release processing routine in a special game, and FIG. 22 is a block diagram of a control function of the present invention. 1 ... game board, 3 ... game area, 4 ... variable display device, 5
…… variable prize device, 6,7 …… Specific prize port, 8 …… Start port, 42a, 42b …… Opening / closing gate, 43 …… Turn flap, 55
…… Motor, 90 …… Probability setting device, 100 …… Control device.

Claims (1)

(57) [Claims] 1. A game board disposed on a front frame that can be opened and closed with respect to a machine frame, comprising a variable display device capable of variably displaying a plurality of identification information, and stopping the variable display performed by the variable display device. In a gaming machine capable of generating a special gaming state advantageous to a player in association with the result mode being a predetermined special display mode, the gaming machine is configured to include a predetermined case, and the variable display is stopped. A control device that controls the result mode to be the special display mode with a required probability, wherein the control device can change the probability of the stop result mode to be the special display mode in multiple stages based on an external operation. Key setting type probability setting changing means, and setting display means capable of displaying setting information set by the probability setting changing means. The setting device is provided on a predetermined surface of the case, and the setting display means is provided so as to be visible from the predetermined surface side, and the control device is provided with the predetermined surface facing the rear surface side of the gaming machine. A gaming machine characterized in that it is arranged in a part.