JP2011189061A - Pachinko game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a Pachinko game machine whenever a ready-to-win condition variation having an extremely high winning probability is produced, capable of optionally concealing it by a player's operation. <P>SOLUTION: The Pachinko game machine includes: an operation button disposed at the front face of a game machine body and switches over the ready-to-win condition variation modes of special symbols A, B and C by the player's operation; a dummy symbol creating means creating a dummy symbol creation process of a low-provability ready-to-win condition variation mode where a probability of stationarily displaying the special symbols A, B and C in a winning mode is low; and a ready-to-win condition mode switching means configured such that when a symbol creation process of a high-probability ready-to-win condition variation mode where a probability of stationarily displaying the special symbols A, B and C in a winning mode is high, is displayed to a symbol display device 19, the symbol creation process is switched over by the operation of the operation button during the display, to the dummy symbol creation process that is preliminarily prepared by the dummy symbol creating means. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a pachinko gaming machine that displays a series of symbol generation processes from a change start to a change stop of a special symbol on a symbol display device.

  A symbol display device that variably displays a special symbol, a special start port through which a game ball can pass, a variation mode including a reach variation mode and a stop mode with the game ball passing through the special start port or digesting the special symbol start memory number And a symbol control means for selecting a series of symbol generation processes from the start of fluctuation of the special symbol to the stop of the fluctuation, and displaying the selected symbol generation process on the symbol display device, and the special symbol is a hit state in the symbol display device. There is known a pachinko gaming machine including a game control means having a control content for executing a special game operation in which a special prize opening is opened in a predetermined manner when the stop is displayed (for example, see Patent Document 1). .

  In this kind of pachinko gaming machine, various symbol variation modes including the reach variation mode are displayed on the symbol display device, but in particular, the reach variation with a very high probability that the special symbol is stopped and displayed in the hit mode. Sometimes, during a series of symbol generation processes from the start of fluctuation of special symbols to the stop of variation, for example, a special notice effect design such as introducing a school of fish or changing the color of the flame surrounding the character is displayed. The player is informed or suggests that the reach fluctuation is a premium reach with a very high probability of winning, and the expectation for the big hit is enhanced.

JP 2003-334332 A

  By the way, the reach fluctuation with the extremely high hit probability as described above is easy to catch attention because it is a flashy production content. When the reach fluctuation occurs, the other players nearby look at the transition of the reach fluctuation. Often seen. Although the player welcomes the occurrence of the reach change, he / she may feel discouraged and embarrassed if the final stoppage is off due to high expectations for the big hit. I have a lot of feelings that I don't want other players to see changes in reach.

  The present invention has been made in view of such a conventional situation, and provides a pachinko gaming machine which can be arbitrarily concealed by a player's operation whenever a reach fluctuation with a very high probability of hit occurs. It is for the purpose.

  The present invention includes a symbol display device that variably displays a special symbol, a special start port through which a game ball can pass, a variation including a reach variation mode as the game ball passes through the special start port or a special symbol start memory number is consumed. A symbol control means for selecting a series of symbol generation processes from the start of variation of special symbols to the stop of variation in a mode and a stop mode, and displaying the selected symbol generation process on the symbol display device, and a special symbol on the symbol display device In a pachinko gaming machine comprising a game control means having a control content for executing a special game operation in which a special prize opening is opened in a predetermined mode when the game is stopped and displayed in a winning manner, the pachinko gaming machine is arranged on the front surface of the gaming machine main body. The operation button for switching the reach variation mode of the special symbol by the player's operation, and the dummy symbol generation process of the reach variation mode with a low probability that the special symbol is stopped and displayed in the hit mode. When the symbol generation process of the reach variation mode with a high probability that the special symbol is stopped and displayed on the symbol display device is displayed on the symbol display means, and the operation button on the display is operated, A pachinko gaming machine comprising: a reach mode switching unit that switches a symbol generation process to a dummy symbol generation process prepared in advance by a dummy symbol generation unit.

  Here, the reach variation mode with a high probability that a special symbol will be stopped and displayed in the hit mode is a special notice effect displayed in a hit mode by displaying a specific notice effect symbol during the reach variation symbol generation process. This is a reach variation mode that informs or suggests that there is a high possibility of being performed. In addition, the reach variation mode with a low probability that the special symbol is stopped and displayed in the hit mode is a reach variation mode that does not include the display of the specific notice effect design. This specific notice effect design can be displayed separately from the special design, or can be displayed together with the special design, and can be static in addition to the dynamic design. The form is not particularly limited. Moreover, it is preferable that the dummy symbol generation process is instantaneously switched from the variation progress scene of the symbol generation process during the variation display to the same variation progress scene in response to the operation of the operation button.

  In the pachinko gaming machine, a configuration is proposed in which the dummy symbol generation means extracts a dummy symbol generation process to be displayed from a predetermined data storage area in which a plurality of dummy symbol generation processes are stored in advance.

  According to the present invention, when the symbol generation process of the reach variation mode with a high probability that the special symbol is stopped and displayed in the hit mode is displayed, the player operates the operation button to display the symbol of the reach variation mode. The generation process is switched to a dummy symbol generation process having a reach variation mode with a low hit probability. This makes it possible to arbitrarily conceal reach fluctuations with extremely high hit probability each time, and such reach fluctuations with low hit probability do not attract the attention of other players. Never seen.

1 is a perspective view of a pachinko gaming machine 1 according to the present invention. 2 is a front view of a game board 15. FIG. It is a block diagram of the control circuit which comprises a game control means. It is explanatory drawing which shows the reach fluctuation aspect with high hit probability displayed on the symbol display apparatus 19. FIG. It is explanatory drawing which shows the state switched from the reach fluctuation aspect with a high hit probability to the reach fluctuation aspect with a low hit probability.

  Embodiments of a pachinko gaming machine according to the present invention will be described below with reference to the accompanying drawings.

  As shown in FIG. 1, the pachinko gaming machine 1 is a vertically long rectangular outer frame 2 fixed to a gaming island (not shown), and a gaming machine attached so as to cover the opening of the outer frame 2 from the front. It consists of a main body 3.

  The gaming machine main body 3 includes a main body panel 9 to which a game board 15 (see FIG. 2) is attached, and a front door 4 disposed on the front side of the main body panel 9. Is pivotally connected to the left edge of the upper and lower hinges via upper and lower hinges 5 and 5. Further, the front door 4 is attached to the left side edge of the main body panel 9 through a hinge connection so as to be able to open one side. The front door 4 includes a transparent plate 6 that shields a substantially circular opening formed at a position near the upper center of the front door 4, and a game area of an internal game board 15 (see FIG. 2) through the transparent plate 6. 17 can be seen through.

  An upper tray 7 for storing game balls supplied to a launching device (not shown) is provided at the lower front portion of the front door 4. A lower tray 10 is provided at the lower center of the front surface of the main body panel 9 located at the lower portion of the upper tray 7. A ball discharge port 11 is opened at the back of the lower tray 10, and when the upper tray 7 is full, the overflowing game ball flows down the ball channel (not shown) in the gaming machine body 3 and is released. It is discharged from the outlet 11 into the lower tray 10. A firing handle 12 protrudes on the right side of the lower tray 10 and an operation button 14 is disposed on the left side of the lower tray 10. The operation button 14 includes a pressure detection sensor 42 (see FIG. 3). When the operation button 14 is pressed, a pressure detection signal is transmitted from the pressure detection sensor 42, and a special operation described later is performed based on the signal. The reach variation modes of symbols A, B, and C can be switched. In addition, by providing the operation button 14 on the front surface of the gaming machine main body 3 in this way, the player can operate the button.

  As shown in FIG. 2, the game board 15 is provided with a game area 17 surrounded by a substantially circular guide rail 16 on the front side thereof, and a center case 18 is arranged at the approximate center of the game area 17. It is installed. The center case 18 is assembled with a symbol display device 19 composed of a liquid crystal display. The display screen 20 of the symbol display device 19 has three special symbols A, B, C and two normal symbols E1, E2 is displayed in a variable manner. Further, various notice effect symbols are displayed on the display screen 20 in a predetermined display pattern. A CRT display can also be used as the symbol display device 19.

  A special symbol start memory number display device 21 composed of four light emitting diodes is disposed at the center lower portion of the center case 18. In this special symbol start memory number display device 21, a ball detection signal from a special symbol start switch S1, which will be described later, is stored in a partial area of a storage device RAM of a main control board 60 (see FIG. 3), which will be described later, up to a predetermined number. If stored, the number of special symbol starting memories is displayed by the number of lighting of the light emitting diodes. In addition, a normal symbol start memory number display device 22 composed of four light emitting diodes is disposed in the lower left part of the center case 18, and a ball detection signal from a normal symbol start switch S2 described later has a predetermined number. When the upper limit is stored in a partial area of the storage device RAM of the main control board 60 (see FIG. 3), the normal symbol start storage number is displayed by the number of lighting of the light emitting diodes. Note that the special symbol start memory number and the normal symbol start memory number are each set to an upper limit number of four.

  On the other hand, normal symbol starting gates (normal symbol starting regions) 23, 23 are disposed on the left and right sides of the center case 18, and the normal symbol starting gates 23 provided by the respective normal symbol starting gates 23 by passing of the game balls. When a ball detection signal is generated from the switch S2 (see FIG. 3), the normal symbols E1 and E2 on the display screen 20 fluctuate and stop after a predetermined time, and various symbol patterns are displayed.

  Below the center case 18, an ordinary electric accessory 24 is arranged in which the opening degree of the special start port 25 is changed by the movable blade pieces 26 and 26. When the display results of the normal symbols E1 and E2 are in a predetermined hit state, the movable blade pieces 26 and 26 are driven for a predetermined time (for example, about 0.2 seconds) using the normal electric accessory solenoid 31 (see FIG. 3) as a drive source. As a result, the game ball is easy to enter the special start opening 25. The special start port 25 is a winning opening that triggers the change of the special symbols A, B, and C of the symbol display device 19, and the special symbol start switch S1 disposed therein (see FIG. 3). As a result of the game ball winning detection, the display screen 20 of the symbol display device 19 displays a series of symbol generation processes from the start of change to the stop of change of the special symbols A, B, and C. Further, during the variation of the special symbols A, B, and C, the number of ball detection signals from the special symbol start switch S1 is one of the storage devices RAM of the main control board 60 (see FIG. 3) as the special symbol start memory number. When the variation is completed, the variation of the special symbols A, B, and C is started again based on the number of special symbol starting memories.

  A variable winning device 27 is disposed below the ordinary electric accessory 24. The variable prize-winning device 27 includes a horizontally long large prize opening 28 and a horizontally long rectangular opening / closing plate 29 for opening and closing the big prize opening 28, and the opening / closing plate 29 is a large prize opening solenoid 32 (see FIG. 3) is controlled to open and close to an open position that tilts forward to open the special winning opening 28 and a closed position that stands rearward from the open position and closes the special winning opening 28. It has come to be. A known drive mechanism for the opening / closing plate 29 can be applied.

  When the special symbols A, B, and C that are variably displayed on the display screen 20 of the symbol display device 19 are fixedly displayed in a predetermined combination, the special game operation as a big hit is executed. In this special game operation, the opening / closing plate 29 is tilted forward and opened, and in the opened state, the game ball is guided into the special winning opening 28 through the guiding action of the upper surface of the opening / closing plate 29 and a predetermined opening time ( For example, a predetermined number of open / close rounds in which the open / close plate 29 rises and the special winning opening 28 is closed due to expiration of a predetermined number (for example, nine) of game balls during the predetermined opening time or the winning of the opening / closing plate 29 is closed. For example, a large number of game balls are won by executing this special game operation, and a predetermined profit is provided to the player. Inside the variable winning device 27, there is provided a count switch S3 (see FIG. 3) for counting the number of winning balls for each opening / closing round.

  In addition, the game area 17 is provided with a plurality of general winning openings 30, and a predetermined number of winning balls are associated with the winning detection of gaming balls by the general winning switch S 4 (see FIG. 3) provided therein. Will be paid out.

FIG. 3 shows a control circuit constituting the game control means of the pachinko gaming machine 1 described above.
The main control board 60 constituting the microcomputer is provided with a board circuit for controlling the game operation and the like of the pachinko gaming machine 1, and a main control central control unit CPU is disposed on the board circuit. ing. The central control CPU for main control processes and executes general control related to games.

  In the main control CPU for main control, a storage device ROM for storing an operation program used for arithmetic processing and a storage device RAM capable of reading and writing necessary data at any time receive information for specifying an address for reading and writing data. Are connected via an address bus (not shown) for transmission and data bus (not shown) for exchanging data, and constitute a board circuit of the main control board 60. The storage device ROM includes a control program, a jackpot special random number table, a jackpot symbol random number table, a lost symbol random number table, a reach random number table, a reach symbol random number table, a reach mode random number table, a regular hit random number table, an ordinary hit symbol random number table The fixed data such as is stored. Then, when the game ball passes through the special start port 25 and the special symbol start switch S1 is turned ON, the main control central control unit CPU draws random numbers in the required random number table, and the big hit special random number value, big hit A design random number value, a lost design random value, a reach random number value, a reach design random value, a reach mode random value, etc. are selected. Further, when the game ball passes through the normal symbol start gate 23 and the normal symbol start switch S2 is turned ON, the main control central control unit CPU performs random number value lottery in the required random number table, A normal winning design random value is selected. On the other hand, the storage device RAM temporarily stores random number values selected from each random number table and information such as a special symbol start switch S1, a normal symbol start switch S2, a count switch S3, and a ball detection signal from the general winning switch S4. Are provided with a storage area, a register area constituting a soft timer, a work area, and the like.

  The board circuit of the main control board 60 is provided with a clock device (not shown) that outputs a predetermined clock pulse, and is connected to the main control central control unit CPU. The main control central control unit CPU performs arithmetic processing in time series in accordance with clock pulses at regular intervals output by the clock device, and sequentially executes a series of processing operations. In addition, a timer TM that counts clock pulses output by the clock device and measures time is also connected.

  The board circuit of the main control board 60 is provided with an input port (not shown) and an output port (not shown) through which the main control central processing unit CPU performs data communication with peripheral devices. The control command signal from the main control board 60 is transmitted to the input ports of the symbol display control board 62, the sound source control board 63, the light source control board 64, and the payout control board 65 via the control board. A special symbol start switch S1 is connected to the input port of the main control board 60, and a press detection sensor 42, a normal symbol start switch S2, a count switch S3, and a general prize switch S4 are connected via a panel relay board 61. Is connected. The main control board 60 checks the signal input state from the pressure detection sensor 42 and each of the switches S1 to S4 every predetermined time (for example, every 2 ms), and when there is a signal input, the signal is waveform-shaped by the waveform shaping circuit. The information is input to the main control CPU and stored in the storage device RAM. The main control board 60 is connected to a prize winning solenoid 32 and a normal electric accessory solenoid 31 via a panel relay board 61 to the output port of the main control board 60, and the central control CPU for main control selects a predetermined condition. Activated when

  Further, the central control unit CPU for main control and each central control unit CPU installed on each of the control boards 62, 63, 64, 65 are computations coupled with arithmetic units (ALUs) for processing predetermined data. It comprises a device, a register for storing data input to and output from this arithmetic unit and a read instruction, a decoder for decoding the instruction, and the like. Note that the arithmetic processing capability of each central control unit CPU is determined by the number of coupled arithmetic units. The central control device CPU for main control transmits a control command signal generated in a predetermined format to each of the control boards 62, 63, 64, 65, and the central control apparatus of each control board 62, 63, 64, 65. The CPU executes predetermined control according to this control command signal.

  The symbol display control board 62 is provided with a substrate circuit for controlling the display mode of symbols displayed on the display screen 20 of the symbol display device 19. This circuit board has a symbol control central control unit CPU for controlling a symbol display mode, a storage device ROM storing an effect program, a storage device RAM capable of reading and writing necessary data, an input port and an output port. And. The storage device ROM stores special symbol A, B, and C symbol patterns, variation modes, and operation programs thereof. That is, in the data storage area of the storage device ROM, the jackpot symbol random number value, the loss symbol random number value, the reach symbol random value, and the reach aspect random number value selected by the central control CPU for main control of the main control board 60 described above are included. After the special symbols A, B, and C change in the symbol variation mode and the stop mode allocated respectively, a plurality of variation mode data of a series of symbol generation processes to be stopped are stored. By displaying a specific notice effect design symbol 33 (see FIG. 4) during the symbol generation process, the probability of hitting is high that informs or suggests that there is a high probability that the special symbols A, B, and C will be stopped and displayed in a hit state. The variation mode data of the reach variation mode is included. Further, in the data storage area of the storage device ROM, a dummy symbol generation process consisting of a reach variation mode that varies with the same symbol format and variation time as the reach variation mode with a high probability of hitting and that does not display the specific notice effect design pattern 33 is displayed. A plurality of fluctuation mode data are stored.

  When the symbol display control board 62 receives the symbol control command signal from the main control board 60 through the input port, the symbol display control board 62 extracts the variation pattern data of the predetermined symbol generation process designated by the symbol control command signal from the storage device ROM. To the display driver via the output port. The display driver displays the symbol generation process of the special symbols A, B, and C in a predetermined variation manner on the display screen 20 of the symbol display device 19 according to the variation manner data. The display driver and the symbol display control board 62 and the main control board 60 select a series of symbol generation processes from the start of change to the stop of change of the special symbols A, B, and C, and the selected symbols. Symbol control means for displaying the generation process on the symbol display device 19 is configured.

  In addition, the symbol display control board 62 performs a symbol generation process of a reach variation mode with a high probability of hitting when the received symbol control command signal from the main control board 60 displays a specific notice effect design symbol 33 (see FIG. 4). If specified, the variation pattern data of the symbol generation process is transmitted to the display driver via the output port, while a plurality of dummy symbol generation processes are stored in advance from the data storage area of the storage device ROM. Fluctuation data of the dummy symbol generation process that fluctuates in the same symbol form and variation time as the reach variation mode of the symbol generation process is extracted and synchronized with the start of the fluctuation of the true symbol generation process displayed by the display driver. Hide and change. The symbol display control board 62 constitutes a dummy symbol generation means for generating a dummy symbol generation process in a reach variation mode in which the probability that the special symbols A, B, and C are stopped and displayed in the hit mode is low.

  In addition, the symbol display control board 62 displays the symbol generation process of the reach variation mode in which the probability that the special symbols A, B, and C are stopped and displayed in the hit mode is displayed on the symbol display device 19 during the display. By operating the operation button 14, a control for switching the symbol generation process to a dummy symbol generation process prepared in advance by the dummy symbol generation means is executed. The symbol display control board 62, the operation buttons 14, and the main control board 60 constitute reach mode switching means.

  The sound source control board 63 is provided with a board circuit for controlling sound effects generated from the speakers. This circuit board circuit includes a storage device ROM that stores fixed data such as operation programs and sound generation patterns, a storage device RAM that reads and writes necessary data, and an input to a central control unit CPU for sound source control that controls sound A port and an output port. The sound source control board 63 performs arithmetic processing on the sound control command signal received from the main control board 60 via the input port by the sound source control central control unit CPU, and sends predetermined sound data to the sound generator via the output port. Transmitting and outputting a predetermined sound effect from the speaker.

  Further, the light source control board 64 is provided with a board circuit for controlling an electric decoration device such as a light emitting diode and a decoration lamp provided in the pachinko gaming machine 1. This circuit board circuit has a storage device ROM in which fixed data such as an operation program and an illumination pattern are stored in a central control device CPU for controlling a light source that controls lighting, blinking, etc. of the illumination device, and necessary data. It comprises a storage device RAM for reading and writing, and an input port and an output port. This light source control board 64 is a central control unit CPU for light source control, performs arithmetic processing on the electrical control command signal received from the main control board 60 through the input port, and sends predetermined light effect data through the output port. Are transmitted to the light source operation board, and the light emitting diodes and the decorative lamps of the lighting device, the special symbol starting memory number display device 21 and the normal symbol starting memory number display device 22 are turned on and blinked in a predetermined production manner.

  Further, the payout control board 65 is provided with a board circuit for controlling the rental or prize balls of game balls. This circuit board operates various solenoids included in the ball rental unit and the prize ball unit to control the supply of predetermined balls and prize balls to the central control unit CPU for payout control. A storage device ROM that stores fixed data such as a sphere number pattern of a sphere, a storage device RAM that reads and writes necessary data such as sphere count data, and an input port and an output port are provided. The payout control board 65 computes the payout control command signal received from the main control board 60 via the input port by the payout control central control unit CPU, and sends predetermined data to the payout relay board via the output port. Based on this data, various solenoids of the ball rental unit and the prize ball unit are actuated to pay out a predetermined ball or prize ball.

Next, the control mode by the control circuit shown in FIG. 3 will be described according to the operation of the pachinko gaming machine 1.
A game ball is fired from a launcher (not shown) to the game area 17 of the game board 15, and when the game ball passes through the special start port 25 and the special symbol start switch S1 is turned on, the special symbol start switch S1 is sent out. The main control board 60 recognizes the detected ball detection signal. By this ball detection signal, the main control central processing unit CPU of the main control board 60, by lottery from each random number table stored in the storage device ROM, a big hit special random number value, a big hit symbol random number value, a lost symbol random number value, A reach random value, a reach design random value, and a reach mode random value are selected, and each random number is temporarily stored in the storage device RAM.

  Further, based on the ball detection signal of the special symbol start switch S1, the main control board 60 transmits a payout control command signal processed by the main control central control unit CPU to the payout control board 65 and interlocks with the prize ball operation. An acoustic control command signal such as a prize ball sound is transmitted to the sound source control board 63, and an electric decoration control command signal such as a prize ball lamp is sent to the light source control board 64. The payout control board 65 that has received the payout control command signal from the main control board 60 performs arithmetic processing in the payout control central control unit CPU using the data stored in the storage device ROM and the storage device RAM, and the prize ball is obtained according to the result. A solenoid (not shown) of the unit is operated to pay out a predetermined number of prize balls. In synchronization with this, the sound source control board 63 that has received the acoustic control command signal performs arithmetic processing in the central control device CPU for sound source control using the storage data in the storage device ROM or storage device RAM, and the speaker is determined according to the result. Further, a predetermined prize ball payout sound is output in accordance with the prize ball payout. At the same time, also on the light source control board 64, the central control unit CPU for light source control performs arithmetic processing using the data stored in the storage device ROM or storage device RAM in accordance with the received electrical decoration control command signal, and according to the result, a predetermined light emitting diode or decoration Turn on and blink the lamp.

  When the game ball passes through the special start port 25 continuously, the number of game balls detected by the special symbol start switch S1 is stored in the storage device RAM of the main control board 60, and based on the storage, as described above. In addition, the light emitting diodes of the special symbol starting memory number display device 21 are sequentially turned on and held up to four times. This light emitting diode is turned off each time the special symbols A, B, C on the display screen 20 start to fluctuate, and the number of memories decreases. In addition, when the start memory | storage number is full (four), even if a game ball passes the special start port 25, it becomes invalid.

  Then, the symbol start condition is established by either the ON operation of the special symbol start switch S1 when the special start port 25 passes the game ball or the digestion of the number of special symbol start memories stored in the storage device RAM of the main control board 60. When the symbol variation of the special symbols A, B, and C is started as a trigger, the central control CPU for main control determines the jackpot special random number value, and based on the determination result, the jackpot symbol random number value and the lost symbol disorder One of the numerical values is validated, and a symbol control command signal generated based on a predetermined random number value stored in the storage device RAM is transmitted to the symbol display control board 62.

  In response to the symbol control command signal, the symbol control central control unit CPU of the symbol display control board 62 uses the predetermined operation program stored in the storage device ROM in accordance with the symbol control command signal. The symbol variation mode and the stop mode to be displayed are determined. Then, the special symbols A, B, and C are sequentially stopped according to the symbol variation mode and the stop mode, and the symbol generation process for confirming and displaying the special symbols A, B, and C is executed.

  In addition, the central control CPU for main control 60 of the main control board 60 transmits an acoustic control command signal to the sound source control board 63 in order to synchronize the sound operation and the light emission operation with the above-described pattern variation mode, and the electrical decoration control command signal. Is transmitted to the light source control board 64. Upon receiving the sound control command, the sound source control board 63 performs arithmetic processing by the sound source control central control unit CPU using an operation program or the like stored in the storage device ROM, and outputs the obtained predetermined sound data to the sound generator. Output from the speaker. Further, in the light source control board 64, a predetermined light effect obtained by performing arithmetic processing in the light source control central control unit CPU using an operation program or the like stored in the storage unit ROM in accordance with the electrical control command signal. Based on the data, the light emitting diode or the decoration lamp is turned on and blinked via the light source operation board.

  When the above-mentioned jackpot special random number value is a predetermined hit random number value, the main control board 60 validates the jackpot symbol random number value, validates the reach symbol random number value, and the reach mode random number value. The symbol control command signal generated based on this is transmitted to the symbol display control board 62. Then, the symbol display control board 62 stops the special symbol at A = C in the symbol form assigned to the reach symbol random value, and executes the reach operation in the reach variation manner assigned to the reach manner random value. The special symbols A, B, and C are stopped and displayed in the hit mode assigned to the jackpot symbol random value. At the same time, the light source control board 64 and the sound source control board 63 generate predetermined lighting effects and sound effects. As the reach variation mode assigned to each reach mode random value, there are various variation modes such as long reach, low speed scrolling, reverse running, acceleration from low speed running, and reversal of symbols.

  When the special symbol A, B, C hit state is stopped and displayed in this way, the main control board 60 drives the special winning opening solenoid 32 via the panel relay board 61 to tilt the opening / closing plate 29 forward. Thus, a series of special game operations are executed as a big hit to open the special winning opening 28.

  That is, the sound generator emits a fanfare, the big prize opening solenoid 32 is driven, and an open / close round is started in which the open / close plate 29 is driven to open and close in a predetermined operation mode. This open / close round is continued until a predetermined opening time (for example, 30 seconds) elapses or until a predetermined number (for example, 9) of game balls are detected by the count switch S3 within the predetermined opening time. Then, once the opening / closing plate 29 is driven to close and the first opening / closing round is completed, the special winning opening 28 is opened again and the next opening / closing round is started. When such an open / close round is repeated a predetermined limit number of times (for example, 14 times), the special game operation ends.

  On the other hand, when the big hit special random number value is not the predetermined hit random number value, the main control board 60 validates the lost symbol random number value, and makes the reach random number value, the reach symbol random number value, the reach aspect random number value valid, A symbol control command signal generated based on these random number values is transmitted to the symbol display control board 62. The symbol display control board 62 stops and displays the special symbols A, B, and C in a lost manner in accordance with the symbol control command signal. Further, when the reach operation is executed by the reach random number value, the special symbol is stopped at A = C in the reach symbol form assigned to the reach symbol random value, and the reach fluctuation assigned to the reach manner random value is determined. After the reach operation is generated in the mode, the lost mode is confirmed and displayed.

  In such a configuration, as described above, when the reach operation is executed by the reach random value, the reach change mode in which the specific notice effect design 33 (see FIG. 4) is displayed is assigned. When the mode random value is selected, this specific notice effect design 33 is displayed during the symbol generation process of the reach variation mode displayed on the display screen 20 of the design display device 19.

  As shown in FIG. 4, the specific notice effect design symbol 33 is composed of, for example, a school of fish. Then, as shown in FIG. 4A, when the special symbols A and C are stopped in the same symbol form and the reach operation occurs, as shown in FIG. Appears from one end side of the display screen 20, crosses the center of the display screen 20 as shown in FIG. 4C, and disappears to the other end side of the display screen 20 as shown in FIG. go. Next, as shown in FIG. 4 (E), an effect design 34 in which a rock is grown is displayed so as to rise from the lower end of the display screen 20, and the image changes with time.

  Since the display of this specific notice effect design 33 is informed or suggested that the design generation process being displayed is a reach variation mode in which the special symbols A, B, and C are likely to be stopped and displayed in a hit mode. However, when a symbol generation process including such a specific notice effect symbol 33 is displayed, if the player presses the operation button 14 (see FIG. 1) during the display, the operation button 14 is provided. A pressing detection signal is sent from the pressing detection sensor 42 to be input to the main control board 60. The main control board 60 transmits a predetermined control command signal generated on the basis of the press detection signal to the symbol display control board 62, and on the basis of the control command signal, the symbol display control board 62 performs the symbol generation process being displayed. Is switched to a dummy symbol generation process prepared in advance by the dummy symbol generator.

  Here, as described above, the dummy symbol generation process prepared in advance fluctuates in the same symbol form and variation time as the symbol generation process being displayed, and is performed simultaneously with the symbol generation process being displayed. Due to the change, when the operation button 14 is pressed, the change progress scene of the symbol generation process being displayed is instantly switched to the same change progress scene of the dummy symbol generation process. FIG. 5 shows a state where the displayed symbol generation process is switched to the dummy symbol generation process. As shown in FIG. 5A, the special symbols A and C are stopped in the same symbol form, and the reach operation is performed. When it occurs, as shown in FIG. 5 (B), a specific notice effect design 33 consisting of a school of fish appears from one end side of the display screen 20. At this time, when the operation button 14 is pressed, it is specified instantly. Is switched to the dummy symbol generation process without the notice effect design symbol 33, and thereafter, as shown in FIGS. 5C to 5E, the special symbols A, B, and C have a low probability of being stopped and displayed in a hit state. The reach variation mode is displayed. As a result, when a specific notice effect symbol 33 such as a school of fish is displayed on the display screen 20, the specific notice effect symbol 33 such as a school of fish is instantly erased from the display screen 20 by pressing the operation button 14. be able to. Note that whether the special symbol A, B, C stop mode in the dummy symbol generation process is a hit mode or an off mode is determined by the dummy symbol generation step based on the selection result of the jackpot special random value described above. Since it is extracted, it depends on the selection result of the jackpot special random value.

  As described above, according to the present invention, when the symbol generation process of the reach variation mode in which the probability that the special symbols A, B, and C are stopped and displayed in the hit mode is displayed, the player presses the operation button 14. By performing the operation, the symbol generation process in the reach variation mode can be switched to the dummy symbol generation process in the reach variation mode with a low hit probability. This makes it possible to arbitrarily conceal reach fluctuations with extremely high hit probability each time, and such reach fluctuations with low hit probability do not attract the attention of other players. Never seen.

DESCRIPTION OF SYMBOLS 1 Pachinko machine 3 Game machine main body 14 Operation button 19 Symbol display device 25 Special start opening 28 Big prize opening A, B, C Special design

Claims (2)

A symbol display device for variably displaying special symbols;
A special starting port through which game balls can pass,
As the game ball passes through the special start opening or the special symbol start memory number is digested, a series of symbol generation processes from the change start of the special symbol to the stop of the change in the change mode including the reach change mode and the stop mode are selected, and A symbol control means for displaying the selected symbol generation process on the symbol display device;
In a pachinko gaming machine comprising a game control means having a control content for executing a special game operation in which a special winning opening is opened in a predetermined manner when a special symbol is stopped and displayed on the symbol display device.
An operation button disposed on the front surface of the gaming machine main body and switching the reach variation mode of the special symbol by the player's operation,
A dummy symbol generation means for generating a dummy symbol generation process of a reach variation mode with a low probability that a special symbol is stopped and displayed in a hit mode;
When a symbol generation process with a reach variation mode with a high probability that a special symbol will be stopped and displayed in a hit state is displayed on the symbol display device, the symbol generation process is performed by operating the operation button during the display. A pachinko gaming machine comprising reach mode switching means for switching to a dummy symbol generation process prepared in advance by means.   2. The pachinko gaming machine according to claim 1, wherein the dummy symbol generation means extracts a dummy symbol generation process to be displayed from a predetermined data storage area in which a plurality of dummy symbol generation processes are stored in advance.

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