JP2009291361A - Pachinko game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a game state full of variety by creating difference between the rates of entrance of game balls when the left side of a variable winning device is opened and when the right side of the device is opened. <P>SOLUTION: In the Pachinko game machine, a random number is obtained with the entrance of a game ball into a starting hole 6A or 6B as the trigger. Whe the obtained random number is a jackpot random number, jackpot symbols are stopped/displayed in a special symbol display (a symbol variable display device) 11, and the variable winning device 3 is operated in the opened state for a prescribed number of rounds. The variable winning device 3 is configured to take three motion patterns; a full-open state, a left-side opened state and a right-side opened state. The easiness of entrance of the game ball into the variable winning device 3 is different when the variable winning device 3 is in the left-side opened state or in the right-side opened state. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a pachinko gaming machine, and more particularly to a variable winning device for a pachinko gaming machine.

  As a pachinko gaming machine, when a random number is acquired in response to the winning of a game ball at the start opening, and the acquired random number is a jackpot random number value (a random number for generating a jackpot among random numbers for jackpot determination) A pachinko gaming machine is known in which a jackpot symbol is stopped and displayed in a symbol variation display device, and a variable winning device is operated in a released state by a predetermined number of rounds to generate a jackpot state. During the big hit, a large number of game balls are won in the open variable winning device, and a large number of game balls are paid out as award balls, resulting in a game state advantageous to the player.

Conventionally, as a variable winning device, when a big hit occurs, the movable door moves to the left or right, and when the movable door moves to the left, the left side of the variable winning device opens and a game is played from this opening. On the other hand, when the movable door moves in the right direction, a variable winning device is known that is configured such that the right side of the variable winning device opens and a game ball can be won from this opening. (For example, refer to Patent Document 1).
JP 2005-278904 A

  According to the conventional variable winning device, the player performs a hitting operation to collect game balls on the left side of the variable winning device when the left side of the variable winning device opens, and on the other hand, when the right side of the variable winning device opens, the player Since the batting operation for collecting game balls on the right side of the apparatus is performed, an effect that the batting operation can be performed with interest is generated.

  However, the winning percentage of the game balls is almost the same when the left side of the variable winning device is opened and when the right side is opened, and the gaming state is poorly changed.

  The present invention has been made paying attention to the above points, and it is possible to change by generating a difference in the winning percentage of the game ball between the case where the left side of the variable winning device is opened and the case where the right side is opened. An object is to provide a pachinko gaming machine capable of realizing a rich gaming state.

  The pachinko gaming machine according to the present invention is a pachinko gaming machine comprising a variable winning device that has a movable portion and can take three operation patterns of a fully closed state, a left open state, and a right open state depending on the position of the movable portion. The ease of winning a game ball for the variable winning device when the variable winning device is in the left open state and the ease of winning of the game ball for the variable winning device when the variable winning device is in the right open state are mutually It is configured to be different.

  According to the pachinko gaming machine of the present invention, it is configured such that the ease of winning a game ball to the variable winning device is different when the variable winning device is in the left open state and in the right open state. A difference occurs in the winning percentage of the game balls, and it is possible to realize a game state rich in change.

  Here, according to the arrangement pattern of the nail members erected on the board surface of the game board, the ease of winning of the game ball with respect to the variable winning device when the variable winning device is in the left open state, and the variable winning device is on the right side. The ease of winning of the game ball with respect to the variable winning device when in the open state can be made different from each other.

  Further, due to the difference between the left opening width and the right opening width, the ease of winning the game ball with respect to the variable winning device when the variable winning device is in the left open state, and when the variable winning device is in the right open state. The ease of winning a game ball with respect to the variable winning device can be made different from each other.

  Further, the pachinko gaming machine of the present invention is a pachinko gaming machine provided with a symbol variation display device, and an operation pattern of the variable prize winning device is determined by a symbol that is stopped and displayed on the symbol variation display device. When configured in this way, the player will play a game while expecting that the jackpot symbol that will be in an open state that is easy to win on the variable winning device will be displayed in a stopped state. The game will be played with interest.

  Further, the pachinko gaming machine of the present invention is a pachinko gaming machine that drives and controls the variable prize-winning device to the left open state or the right open state by a plurality of rounds when a predetermined condition is satisfied, and constitutes the plurality of rounds Corresponding to each round, the variable winning device is driven and controlled to either the left open state or the right open state. If comprised in this way, since the round which is easy to win in a variable winning apparatus, and the round which is hard to win will generate | occur | produce during a jackpot, the jackpot which was rich in change is realizable.

  Further, the pachinko gaming machine of the present invention is based on the condition that the game ball has passed a specific area in a round in which the variable winning device is controlled to be driven to the left open state or the right open state where the game ball is difficult to win. At least in the next round, the variable winning device is controlled to be driven to the left open state or the right open state where game balls can be easily won. With this configuration, the player seriously plays a game in order to make the variable winning device win a game ball in a round in which it is difficult for the game ball to win the variable winning device, and the game ball won in the variable winning device. The joy of moving through a specific area and moving to the next round is great.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 is a front view of a game board of a pachinko gaming machine according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of a variable winning device, and FIG. 3 is an explanatory diagram of three operation patterns of the variable winning device, FIG. 4 is a block diagram of the electrical system of the pachinko gaming machine, FIG. 5 is a flowchart of the start-up process executed by the game control board, FIG. 6 is a flowchart of the symbol variation process executed by the game control board, and FIG. FIG. 8 is a flowchart of the suspension process in the symbol variation process, FIG. 9 is a flowchart of a part of the big prize opening process executed by the game control board, and FIG. FIG. 11 is a flowchart of the remaining prize-winning process, FIG. 11 is a flowchart of the big prize opening switch process executed by the game control board, and FIG. 12 is a flowchart executed by the game control board according to another embodiment. The main part of the flowchart of the prize mouth process, FIG. 13 is the main part of the flowchart of the big prize opening process executed by the game control board according to still another embodiment, and FIG. 14 is the flowchart of the specific area switch process in the same embodiment. FIG. 15 is an explanatory diagram of three operation patterns of the variable winning device according to still another embodiment.

  In FIG. 1, a game board 1 of a pachinko gaming machine includes a game area 2 in which a game ball launched by a player operating a handle (not shown) falls while rolling.

  In the game area 2, a variable winning device (also referred to as a big winning port) 3, two normal winning ports 4 A and 4 B, two gates 5 A and 5 B, two starting ports 6 A and 6 B, and an out port 7 are arranged. The

  As shown in FIG. 2 and FIG. 3 (FIG. 3 shows the state where the front cover part is removed), the variable prize winning device 3 has a movable part 21, a roof part 22, a front cover part 23, and a ball passage part. 24 and the rotation drive part 25 are provided.

  The movable portion 21 is formed in a substantially U shape or V shape in front view, protrudes from the board surface 1 a of the game board 1, and can be rotated clockwise and counterclockwise by the rotation driving portion 25.

  The roof part 22 acts to distribute the game balls falling from above in the left-right direction.

  The front cover part 23 is attached to the lower front part of the movable part 21.

  The ball passage portion 24 passes through the game ball received by the movable portion 21 and guides it to a ball detection switch (not shown in FIG. 2) on the downstream side.

  The rotation drive unit 25 has a drive source 25 a made of an electric motor such as a stepping motor that rotates the movable unit 21.

  The variable winning device 3 takes three operation patterns including a fully closed state shown in FIG. 3 (A), a left open state shown in FIG. 3 (B), and a right open state shown in FIG. 3 (C). Can do.

  When the variable winning device 3 is in the fully closed state, the movable portion 21 is in the neutral position, and a space through which a game ball can pass is not formed between the movable portion 21 and the roof portion 22, and the variable winning device 3 The ball is prohibited from winning.

  When the variable winning device 3 is in the left open state, the movable portion 21 is at a position rotated by a predetermined angle counterclockwise from the neutral position, and a game ball is placed between the left door portion 21a of the movable portion 21 and the roof portion 22. A space that can be passed is formed, and it is possible to win a game ball to the variable winning device 3.

  When the variable winning device 3 is in the open state on the right side, the movable portion 21 is at a position rotated clockwise by a predetermined angle from the neutral position, and the game ball is between the right door portion 21b of the movable portion 21 and the roof portion 22. Is formed so that a game ball can be won in the variable winning device 3.

  Although a part of the game area 2 is omitted, a large number of nail members are erected, and the game area 2 that extends from the left side to the right side of the variable prize apparatus 3 is moved to the variable prize apparatus 3. A group of nail members 31 that are directly involved in the winning of the game balls are erected.

  Of the group of nail members 31, the left nail group 31A located on the left side is erected in an array pattern in which gaps 31a through which game balls can pass are formed intermittently, while the right side nail member 31A is located on the right side. The nail group 31B is erected in an array pattern that guides the game balls to the upper right part of the variable winning device 3. Therefore, when the variable winning device 3 is in the left open state, the left nail group 31A is mainly involved in winning the game balls to the variable winning device 3, and the left nail group 31A has the above game balls. Since the gap 31a through which the player can pass is formed, a gaming state in which it is difficult for the game ball to win a prize with respect to the variable winning device 3 is realized. When the variable winning device 3 is in the right open state, the right nail group 31B is mainly involved in the winning of the game balls to the variable winning device 3, and the right nail group 31B is a game ball as described above. Is placed upright in the upper right part of the variable winning device 3, so that a gaming state in which a game ball can easily win the game is realized with respect to the variable winning device 3.

  An image display 8 is arranged at the center of the game area 2. The image display 8 is composed of a liquid crystal display or the like, and on the display screen 8a, a well-known demo display, a symbol variation display based on winning at the start openings 6A and 6B, a reach effect, a jackpot effect, and the like are performed.

  In addition, the game board 1 is provided with four special symbol holding lamps 9, a normal symbol indicator 10, a special symbol indicator 11, and the like.

  Next, the electrical system of the pachinko gaming machine will be described with reference to FIG.

  In FIG. 4, the electric system has a game control board 50 as a central part, an effect control board 51, a payout control board 52, and a board external information terminal board 53 are connected to the game control board 50, and an image control board is connected to the effect control board 51. 54 and the lamp control board 55 are connected, and the frame external information terminal board 56 is connected to the payout control board 52. The game control board 50, the effect control board 51, the payout control board 52, the image control board 54, and the lamp control board 55 each include a CPU, a ROM, a RAM, an I / O, and the like.

  The game control board 50 includes a start opening switch 57A, 57B, a start opening solenoid 58, a gate switch 59A, 59B, a large winning opening switch 60, a large winning opening motor (electric motor 25a), a normal winning opening switch 61A, 61B, special. The symbol holding lamp 9, the special symbol indicator 11, and the normal symbol indicator 10 are connected to each other.

  The start port switches 57A and 57B detect that the game ball has won the start ports 6A and 6B. The start opening solenoid 58 drives to open the pair of movable pieces of the start opening 6B when the fluctuation display pattern of the normal symbol display 10 stops displaying with a predetermined pattern. The gate switches 59A and 59B detect that the game ball has passed through the gates 5A and 5B as a trigger for operating the start opening solenoid 58. The big winning opening switch 60 detects that the game ball has won the variable winning device 3 when the variable winning device 3 is opened. The normal winning opening switches 61A and 61B detect that the game ball has won the normal winning openings 4A and 4B. The special symbol holding lamp 9 displays the number of holding balls of game balls won in the start openings 6A and 6B. The special symbol display 11 displays the special symbol in a synchronized manner in synchronism with the variation display of the decorative symbol on the image display 8. The normal symbol display 10 variably displays the normal symbol when the game ball passes through the gates 5A and 5B.

  To the payout control board 52, a payout drive motor 62 that is a drive source of a prize ball payout device that pays out a prize ball, a payout ball detection switch 63 that detects a game ball paid out by the prize ball payout device, and a prize ball payout device A ball presence detection switch 64 for detecting that there is a game ball to be supplied, and a ball storage tray for storing the game ball supplied to the ball launching device are fully detected by the game ball that has been paid out. Each of the tongue detection switches 65 is connected.

  An image display 8 and a speaker 66 are connected to the image control board 54.

  A frame lamp 67, a panel lamp 68, and a movable accessory 69 are connected to the lamp control board 55.

  Next, the start opening process, the symbol variation process, the special winning opening process, and the special winning opening switch process executed by the game control board 50 will be described in order based on FIGS.

(1) Start-up process (Figure 5)
The game control board 50 determines whether or not the start opening switches 57A and 57B are turned on (step S1). When the start opening switches 57A and 57B are turned on, it is determined whether or not the number of retained balls U is less than 4. Determination is made (step S2), and if the number of reserved balls U is less than 4, the number of reserved balls U is incremented by 1 (step S3), and a random number is acquired and stored (step S4).

(2) Symbol variation processing (Figs. 6-8)
In FIG. 6, the game control board 50 determines whether or not the jackpot that occurs when the acquired random number is a jackpot random value (step S11). Here, during the big hit, the variable winning device 3 is held open for a predetermined number of rounds, and a large number of game balls can be won in the variable winning device 3, which is a gaming state advantageous to the player.

  If it is not a big hit, it is determined whether or not the special symbol display 11 is changing, that is, when the special symbol is variably displayed (step S12). Here, the variation of the special symbol occurs when a game ball wins the start opening 5A or 5B.

A.
1) When the symbol is not changing (step S12), it is determined whether or not the number of reserved balls U is 1 or more (step S13). When the number of reserved balls U is 1 or more, the number of reserved balls U is decremented by 1 (step S14). Next, the variation pattern selection process shown in FIG. 7 is executed (step S15).

2) Fluctuation pattern selection processing (Fig. 7)
In FIG. 7, the game control board 50 determines whether or not the random number acquired and stored in step S4 corresponds to a jackpot random value that generates a jackpot (step S31).

  If the random number is a jackpot random value, the type of jackpot symbol to be stopped and displayed on the special symbol display 11 is set (step S32). Note that the type of jackpot symbol is determined based on the random number acquired in step S4. On the other hand, if the random number is a lost random value, the type of lost symbol is set (step S33), and the presence / absence of reach and the type of reach (normal reach, special reach, etc.) are determined (step S34). Next, a variation pattern of an image to be displayed on the image display device 8 is set (step S35).

        3) Next, the game control board 50 sets a change start command and transmits it to the effect control board 51 (step S16). Next, the game control board 50 starts the special symbol change in the special symbol display 11 (step S17). Then, measurement of the variation time is started (step S18).

B.
1) If it is not a big hit but the symbol is changing (steps S11 and S12), it is determined whether or not the changing time has ended (step S19). When the variation time ends, a variation stop command is set and transmitted to the effect control board 51 (step S20). Next, the game control board 50 stops the special symbol change in the special symbol display 11 (step S21). Then, the variation time is reset (step S22). Next, the stop process shown in FIG. 8 is executed (step S23).

2) Processing during stoppage (Fig. 8)
In FIG. 8, the game control board 50 determines whether or not the symbol whose variation has been stopped corresponds to the jackpot symbol (step S41).

  When the symbol whose change has stopped is a jackpot symbol, the jackpot is started (step S42), and the jackpot opening display is started (step S43). In addition, when the symbol whose variation has been stopped is a reach lose symbol or a lose symbol, the in-stop process is terminated.

(3) Grand prize opening process (Figs. 9 and 10)
In FIG. 9 and FIG. 10, the game control board 50 first determines whether or not it is a big hit (step S51), and if it is a big hit, determines whether or not it is opening (step S52). . Here, “opening” means a period from the occurrence of a jackpot to the start of the first round of jackpot.

  Immediately after the occurrence of the jackpot, since the opening is in progress, it is next determined whether or not the opening time, that is, the time from the occurrence of the jackpot to the start time of the first round of the jackpot has elapsed (step S53).

  Before the opening time elapses, step S51, step S52 and step S53 are repeatedly executed.

  Thereafter, when the opening time elapses, the round number R is incremented by “1” (step S54). Immediately after the opening time elapses, the number of rounds R so far is “0”, so the number of rounds R after the addition in step S54 is “1”. Next, the winning number C won in the variable winning device 3 is cleared to “0” (step S55).

  Next, it is determined whether or not the jackpot symbol is a left-side open symbol (step S56). Here, the left open symbol means a jackpot symbol for selecting the operation pattern of the variable winning device 3 to the left open state. For example, when special symbols “3” and “7” are set as jackpot symbols among the special symbols “0” to “9”, the special symbol “3” is set as the left open symbol, and the special symbol “7” is set. It can be set as a right open symbol. In contrast to the above, the special symbol “7” may be set as the left open symbol, and “3” may be set as the right open symbol. In addition, when there are three or more jackpot symbols, the symbols may be divided into two groups, a left open symbol and a right open symbol.

  When the jackpot symbol corresponds to the left open symbol, a command signal is output to the big prize opening motor 25a, and the operation pattern of the variable prize winning device 3 is changed from the fully closed state shown in FIG. 3 (A) to the one shown in FIG. 3 (B). When the left winning state is shifted to the left open state (step S57), on the other hand, when the big winning symbol corresponds to the right open symbol, a command signal is output to the big winning opening motor 25a, and the operation pattern of the variable winning device 3 is shown in FIG. The fully closed state shown in the figure is shifted to the right side open state shown in FIG. 3C (step S58).

  When the variable winning device 3 is in the left open state, as described above, the gaming ball is in a gaming state in which it is difficult for the variable winning device 3 to win a prize. On the other hand, when the variable winning device 3 is in the right-side open state, as described above, the gaming state is such that the game ball can easily win the variable winning device 3.

  Next, it is determined whether or not a preset opening time, that is, a time during which the variable winning device 3 can maintain the opening state has elapsed (step S59).

  Immediately after the variable winning device 3 shifts to the open state, the determination result in step S59 is “NO”. Next, whether or not the winning number C won in the variable winning device 3 is the predetermined value “9”. (Step S60). Since the determination result is “NO”, the process returns to step S51, and then step S52 is executed. The determination result in step S52 is “NO” because the opening is no longer being performed at this point, and it is then determined whether or not the variable winning device 3 is open (step S61). Since “YES”, the process proceeds to step S59. Thereafter, step S59 to step S61, step S51, and step S52 are repeatedly executed.

  While repeatedly executing Step S59 to Step S61, Step S51, and Step S52, every time a game ball wins the variable winning device 3, in other words, every time the big winning opening switch 60 detects a game ball, The number C increases to “1”, “2”,. The counting of the number of winning prizes C will be described in the big prize opening switch process described later. When the winning number C becomes “9”, the determination result in step S60 becomes “YES”, or when the release time elapses before the winning number C becomes “9”, the determination result in step S59 becomes “YES”. The command signal is output to the big prize opening motor 25a, and the operation pattern of the variable winning device 3 is changed from the left open state shown in FIG. 3 (B) or the right open state shown in FIG. 3 (C) to FIG. 3 (A). The illustrated state is shifted to the fully closed state (step S62).

  Next, it is determined whether or not the round number R is “15” (step S63). At this time, since the round number R is “1”, the determination result in step S63 is “NO”, and the process returns to step S51.

  After returning to step S51, after step S51 and step S52, step S61 is executed. At this point, the variable winning device 3 is not open, so the determination result in step S61 is “NO” and the next ending It is determined whether or not (step S64). Here, “ending” means when the jackpot end effect is performed on the image display 3 after the end of the fifteenth round.

  At this point, since it is immediately after the end of the first round, the determination result in step S64 is “NO”, and it is next determined whether or not the interval time has passed (step S65). Here, the interval time refers to a preset delay time from the time when the variable winning device 3 is fully closed until the time when the variable winning device 3 is opened to start the next round. At this point, since the variable winning device 3 has just started the fully-closed operation, the determination result in step S14 is “NO”, and the process returns to step S51.

  After returning to step S51, step S51, step S52, step S61, step S64 and step S65 are repeatedly executed before the interval time elapses.

  Thereafter, when the interval time elapses, the determination result in step S65 is “YES”, then the round number R is added by “1”, the round number R is set to “2” (step S54), and the winning number C is set to “ It is cleared to “0” (step S55), the variable winning device 3 is opened on the left side or on the right side corresponding to the jackpot symbol, and the second round is started (step S57 or S58).

  In the second round, the same process as the process in the first round described above is performed, and when the winning number C reaches “9” or before the winning number C reaches “9”, the opening time elapses. When this happens, the variable winning device 3 is shifted to the fully closed state (step S62).

  After execution of step S62, the same processing as when the first round is completed is performed, and the third round is started after the interval time has elapsed.

  Thereafter, the third round, the fourth round,... The fourteenth round are performed, and when the fifteenth round is completed, the determination result in step S63 is “YES”, and the round number R is cleared to “0” (step S66). Ending is started (step S67). Thereafter, when the ending time has elapsed (step S68), the ending is terminated and the jackpot is terminated (step S69).

(4) Grand prize opening switch processing (Figure 11)
In FIG. 11, the game control board 50 adds the winning number C by “1” when the big prize opening switch 60 is turned on (step S71), and the prize is 15 (step S72, step S73). A command is set and transmitted to the payout control board 52 (step S74). The payout control board 52 that has received the 15 prize balls command outputs a command signal to the payout drive motor 62, and the payout drive motor 62 is driven to pay out 15 prize balls.

  As described above, the pachinko gaming machine according to the present embodiment acquires a random number in response to a winning of a game ball to the start openings 6A and 6B, and when the acquired random number is a jackpot random number value, This is a pachinko gaming machine in which the jackpot symbol is stopped and displayed on the display (symbol variation display device) 11 and the variable winning device 3 is operated in the open state by a predetermined number of rounds. The variable winning device 3 is in the fully closed state and the left open state. The game balls are configured to be able to take the three movement patterns of the right open state, and the ease of winning the game ball to the variable winning device 3 differs depending on whether the variable winning device 3 is in the left open state or the right open state.

  According to the pachinko gaming machine of the present embodiment, since the ease of winning a game ball to the variable winning device 3 is different when the variable winning device 3 is in the left open state and in the right open state, 1 Differences occur in the winning percentage of the game balls in the two variable winning devices 3, and it is possible to realize a gaming state rich in change.

  Further, in the pachinko gaming machine of the present embodiment, the operation pattern of the variable winning device 3 is determined corresponding to the jackpot symbol that is stopped and displayed on the symbol variation display device 3, and the variable winning device 3 is in the left open state or the right open state. Since the player is configured to be operated in one of the open states, the player starts playing the game while expecting that the jackpot symbol that is in the open state that is easy to win in the variable winning device 3 is displayed in a stopped state. The game is played with interest as to which symbol the jackpot symbol that is stopped and displayed becomes.

  The pachinko gaming machine according to the present embodiment opens the variable winning device 3 on the left side depending on whether the jackpot symbol corresponds to the left open symbol or the right open symbol in the big prize opening process shown in FIGS. 9 and 10. Although configured to be opened on the right side (steps S56 to S58), steps S56 to S58 are replaced with steps S56A to S58A shown in FIG. 12, and the variable winning device 3 is opened on the left side or on the right side depending on the current round. For example, in the case of the first round R1, the third round R3, the fifth round R5, the seventh round R7, the ninth round R9, the eleventh round R11, the thirteenth round R13, and the fifteenth round R15, the variable prize device 3 is on the left side. In other rounds R2, R4, R6, R8, R10, R12, R14, the variable winning device 3 may be configured to be opened on the right side. If comprised in this way, since the round which is easy to win and the round which is hard to win will generate | occur | produce in the variable prize-winning apparatus 3 during jackpot, the jackpot rich in change is realizable.

  Further, the above steps S56 to S58 are replaced with steps S56B to S58B shown in FIG. 13, and the flag F that is set to “1” in the specific area switching process (steps S81 to S83) shown in FIG. In the round in which the flag F that is set to “1” is not set when the specific area switch provided in 3 is turned on during a predetermined effective period, it is difficult for the game ball to win the variable winning device 3 After the game ball that has won the variable winning device 3 passes through the specific region and the specific region switch is turned on with the left side open, the game ball wins the variable winning device 3 in all rounds after the next round. You may comprise so that it may open on the right side. In addition, the round which opens the variable prize-winning device on the right side may be at least the round next to the round in which the specific area switch is turned on. With this configuration, the player seriously plays a game to make the variable winning device 3 win a game ball in a round in which it is difficult for the game ball to win the variable winning device 3, and wins the variable winning device 3 The joy when the game ball that has passed through the specific area can move to the next round is great.

  Further, in the pachinko gaming machine according to the present embodiment, the number of jackpot rounds is set to “15” in both cases where the variable winning device 3 is set to the left open state and the right side open state during the jackpot. However, if the jackpot round is set to the left open state, the jackpot round number is set to a small value, for example, “7”. There is a big difference in the ball, which can make the player feel angry.

  In addition, the pachinko gaming machine according to the present embodiment has a game in which the variable winning device 3 in the left open state and the variable winning device 3 in the right open state are arranged according to the arrangement pattern of the nail members 31 erected on the board surface 1a of the game board 1. The balls are configured to have different winning easiness, but the arrangement pattern of the nail members 31 is set to a normal arrangement pattern as in the conventional pachinko gaming machine, and as shown in FIG. The movable portion 21 is formed asymmetrically, that is, the inner surface of the left door portion 21a is formed closer to the vertical surface than the inner surface of the right door portion 21b, and in the left open state shown in FIG. On the other hand, it is possible to create a gaming state in which it is difficult for the game ball to win, while in the right open state shown in FIG. . Further, by using the symmetrically movable unit 21 shown in FIG. 3, by making a difference between the rotation angle when the movable unit 21 is rotated clockwise and the rotation angle when it is rotated counterclockwise, The ease of winning a prize in the variable winning device 3 may be different. In short, by making the left opening width and the right opening width of the variable winning device 3 different, it becomes possible to vary the ease of winning of the game ball to the variable winning device 3.

1 is a front view of a game board of a pachinko gaming machine according to an embodiment of the present invention. It is sectional drawing of a variable winning apparatus. It is explanatory drawing of three operation | movement patterns of a variable winning apparatus. It is a block diagram of the electric system of a pachinko gaming machine. It is a flowchart of the start port process which a game control board performs. It is a flowchart of the symbol variation process which a game control board performs. It is a flowchart of the change pattern selection process in a design change process. It is a flowchart of the stop process in the symbol variation process. Flowchart of a part of the big prize opening process executed by the game control board It is a flowchart of the remaining part of the same prize winning opening process. It is a flowchart of a big winning opening switch processing executed by the game control board. It is a principal part of the flowchart of the big prize opening process which the game control board which concerns on other embodiment performs. It is a principal part of the flowchart of the big prize opening process which the game control board concerning other embodiment performs. Flow chart of specific area switch processing in the embodiment It is explanatory drawing of three operation | movement patterns of the variable prize apparatus which concerns on other embodiment.

Explanation of symbols

1 game board 1a board surface 3 variable prize device 6A, 6B start port 11 special symbol display (design variable display device)
21 Movable part 31 Nail member

Claims (6)

In a pachinko gaming machine that has a movable part and includes a variable prize device that can take three operation patterns of a fully closed state, a left-side open state, and a right-side open state depending on the position of the movable part,
Ease of winning a game ball for the variable winning device when the variable winning device is in the left open state, and ease of winning a game ball for the variable winning device when the variable winning device is in the open state of the right side A pachinko gaming machine that is configured to be different from each other.   The arrangement pattern of the nail members erected on the board surface of the game board makes it easy for the game ball to win the variable winning device when the variable winning device is in the left open state, and the variable winning device is in the right open state. 2. The pachinko gaming machine according to claim 1, wherein the ease of winning a game ball with respect to the variable winning device is different from each other.   Due to the difference between the left-side opening width and the right-side opening width, the ease of winning of the game ball with respect to the variable winning device when the variable winning device is in the left open state, and the above when the variable winning device is in the right open state The pachinko gaming machine according to claim 1, wherein the ease of winning a game ball with respect to the variable winning device is different from each other. A pachinko gaming machine equipped with a pattern variation display device,
The pachinko gaming machine according to any one of claims 1 to 3, wherein an operation pattern of the variable winning device is determined based on a symbol that is stopped and displayed on the symbol variation display device. A pachinko gaming machine that drives and controls the variable prize-winning device to the left open state or the right open state for a plurality of rounds by establishment of a predetermined condition,
The drive control of the said variable prize-winning apparatus corresponding to each round which comprises the said multiple round number to either one of a left open state or a right open state is carried out. The pachinko machine described.   In the round in which the variable winning device is driven and controlled to the left open state or the right open state in which it is difficult to win the game ball, the variable winning device is at least in the next round on condition that the game ball has passed a specific area. The pachinko gaming machine according to any one of claims 1 to 3, wherein the game ball is controlled to be in a left open state or a right open state in which a game ball can be easily won.

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