JP2001129192A - Pachinko game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pachinko game machine by which a large sum of loss in a game player is suppressed to obtain a wholesomeness in a game, the tense feeling and the desire of the player to the game are raised and a freshness and amusement are also raised. SOLUTION: In the pachinko game machine, a state is shifted to the second probability one where a next time big hit occurrence probability is higher than that in the first probability state in the case of a normality when a prescribed condition is satisfied in the case of big hit establishment and also the state is shifted to the third probability one from the first one, where the big hit occurrence probability is higher than the first probability one when the prescribed condition being different from that for shifting the state into the second one in the first probability state is satisfied.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pachinko game machine, and more particularly, to a pachinko game machine in which a large winning opening is continuously opened when a jackpot is established to enable a large number of winnings.

[0002]

2. Description of the Related Art Conventionally, there is a pachinko game machine in which a predetermined special game state called "big hit" is generated during a game. In such a model, the starting port,
An image display device is provided on the game board surface for displaying a plurality of symbols consisting of numbers, symbols, pictures, and the like, by changing and stopping them based on display control means. The image display device usually has a configuration in which a plurality of display units are arranged, and is capable of changing and stopping a symbol for each image display unit. The starting port is constituted by two movable pieces, and the two movable pieces are controlled so as to be changeable between a substantially vertical narrow open state which is a normal state and a substantially V-shaped expanded open state. Things are common.

When a game ball wins in the starting opening, the symbol displayed on the image display device starts to change, and after a predetermined time change, the stopped symbols are displayed on a plurality of display portions of the image display device. When the stop display symbol becomes a specific combination, for example, a so-called zigzag line composed of a combination of the same symbols, a "big hit" is established, and in the other combinations, "miss". When the "big hit" is established, a large winning port on the game board surface is continuously opened to enable a large number of winnings, and a large amount of prize balls are paid out during the winning.

In recent years, in the pachinko gaming machine, when a predetermined condition is satisfied when a jackpot is established, specifically, when a predetermined specific combination among the combinations of symbols in which the jackpot is established is determined, the jackpot (special combination) is set. In addition to the occurrence of the jackpot, the probability change function that shifts from the normal low probability state to the high probability state by changing the next jackpot occurrence probability to a high probability so as to be advantageous to the player after the end of the jackpot. Models equipped with are widely used.

[0005] In addition, when a predetermined combination of symbols for which a jackpot is established is set for the purpose of improving the sense of speed and tension in the game, the jackpot is terminated in addition to the occurrence of the jackpot. Thereafter, by increasing the open-open state (opened state) of the starting port or increasing the frequency of occurrence of the open-open state, it becomes easier for game balls to win the starting port, and accordingly, the image display section In some cases, a special symbol is provided on the image display unit so that the special symbol can be changed frequently by shortening the symbol change time.

[0006]

However, in the above-mentioned conventional pachinko gaming machine, the high probability state (probability fluctuation state) or the symbol fluctuation time shortening state continues many times, and the jackpot is continuously established many times. While players have the opportunity to win a large number of prize balls, the jackpot is not established for a very long time, and the player often loses a large amount of money in a short time. In addition, when the jackpot is not established for a long time as described above, the player is frustrated, causing a loss of tension in the game and a decrease in the desire to play the game.

Recently, Japanese Patent Application Laid-Open No. 10-11344 discloses
No. 8, such as a pachinko gaming machine, a device configured to prevent a succession of jackpots having a low probability of occurrence of the next jackpot has been proposed. In this case, Since it is an indispensable condition that the jackpot is established, the large loss of the player cannot be compensated unless the jackpot is established. Furthermore, in the pachinko gaming machine, when the jackpot is established after the low-probability state continues for a predetermined period, that is, even if the jackpot symbol is not a specific combination that fluctuates in probability, the next jackpot occurrence probability is set to a high probability. Because of the change, the player can predict to some extent whether or not the probability changes. For this reason, contingency (fairness), which is the original fun of this type of gaming machine
Was lost, and lacked freshness for the game.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and suppresses a large loss of a player to bring about the soundness of the game. Moreover, the player's sense of tension and willingness to play the game increases. The aim is to provide a pachinko gaming machine that will increase freshness and interest.

[0009]

According to the present invention, when a predetermined condition is satisfied when a jackpot is established, the next jackpot occurrence probability is higher than the first probability state in normal time.
In the pachinko gaming machine adapted to shift to the probability state, when a predetermined condition different from the condition for shifting to the second probability state is satisfied at the time of the first probability state, the pachinko gaming machine shifts from the first probability state to the second probability state. The present invention is characterized in that it is configured to shift to a third probability state in which the jackpot occurrence probability is higher than the first probability state. As in the second aspect of the present invention, the third
The jackpot occurrence probability of the probability state may be different from the jackpot occurrence probability of the second probability state.

Preferably, a first probability period determining means for determining that the first probability state has continued for a predetermined period or more, and a first probability value for a predetermined period or more by the determining means. Probability switching means for determining whether to shift from the first probability state to the third probability state when the continuation of the state is determined may be provided.

Further, the invention according to claim 4 is provided with a starting port, and an image display section for displaying a plurality of symbols in a variable manner and then stopping the display by awarding a game ball to the starting port, and satisfying a predetermined condition when a jackpot is established. In the case, in the pachinko game machine in which the symbol change time of the image display unit is shifted to the second symbol change state which is shorter than the first symbol change state in the normal time, the symbol change time is in the first symbol change state. When a predetermined condition different from the condition for shifting to the second symbol variation state is satisfied, the first symbol variation state is shifted to a third symbol variation state in which the symbol variation time is shorter than the first symbol variation state. It is characterized by comprising.

Preferably, the first symbol variation period determining means for determining that the first symbol variation state has been continued for a predetermined period or more, and the first symbol variation period determining means for determining whether the first symbol variation state has continued for a predetermined period or more. It is preferable to provide a symbol variation time reduction determining means for determining whether to shift from the first symbol variation state to the third symbol variation state when the continuation of the symbol variation state is determined. Further, as in the invention according to claim 6, a configuration may be such that a winning of the game ball to the starting port in the third symbol change state is easier than in the first symbol change state.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 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 back view of a game board of the pachinko gaming machine of the embodiment, and FIG. 3 is a pachinko gaming machine of the embodiment. FIG. 2 is a block diagram schematically showing system control of FIG.

An outer guide rail 4 and an inner guide rail 5 of a game ball are erected substantially at the edge of the game board 3 of the pachinko gaming machine shown in FIGS. 1 and 2, and the game is surrounded by the inner guide rail 5. On the center line of the surface 6, in order from the top to the bottom, an image display device 9, a first-type starting port 11 which is a tulip type ordinary electric accessory, a special winning accessory 15 which is a special electric accessory, and an out opening 17. In addition, lamp windmills 18a and 18b are provided on both upper sides, a normal design change start left gate 19 and a normal design change start right gate 21 are provided below them, windmills 22a and 22b are provided below them, and a left sleeve prize is provided therebelow. The mouth 23 and the right sleeve winning opening 25, and furthermore, on both sides of the large winning opening 15, the leftward winning opening 27 and the rightward winning opening 2
9 are provided. When a game ball wins in the various winning ports, a predetermined number of game balls are paid out as prize balls. In addition, when a predetermined jackpot state (special game state) is reached under specific conditions described later in detail, the special winning opening 15 is opened, and a state in which game balls are easily won is established. Hereinafter, the required components will be described in more detail.

The image display device 9 comprises an ordinary symbol display device 41 at the upper part thereof and a special symbol display device 43 at the center thereof, so that symbols such as numbers, alphabets, symbols or pictures can be changed and displayed. I have. The ordinary symbol display device 41 has an ordinary symbol display section 45 composed of a 7-segment LED or the like. Also, on both sides of the ordinary symbol display section 45, an ordinary symbol variation number storage display 47 made of an LED or the like is provided, and a game ball passes through the ordinary symbol variation start left gate 19 and the ordinary symbol variation start right gate 21. The number of symbol fluctuation starts caused by the change is stored and displayed as the number of suspensions (in this example, a maximum of four times), excluding those currently changing.

The special symbol display device 43 includes a window frame 49.
Inside, an image display unit 50 composed of a liquid crystal display panel or the like is provided. The display screen of the image display unit 50 is divided into three display areas arranged side by side, and the left display unit 50a and the middle display unit 50
b, a right display section 50c.
At 0c, a special symbol (a symbol for displaying the determination result) can be displayed in a variable manner and stopped. The window frame 4
On the left and right inner sides of 9, there is provided a special symbol change number storage indicator 51 made of an LED or the like.

The first-type starting port 11 is provided directly below the image display device 9, and the two movable pieces 11a and 11b are in a substantially vertical narrow opening state in a normal state by the first-type starting port solenoid 53 on the back surface. And a substantially V-shaped expanded and opened state. The opening and opening of the first type start-up port 11 is performed when the symbol of the ordinary symbol display section 45 stops changing and a specific symbol is displayed. In this example, when the stop symbol of the ordinary symbol display section 45 is the specific symbol during the normal game state, the first type start-up port 11 is opened and opened once for 0.4 seconds, and further the opening and closing of the opening is performed. Type 1 starting port 1
When the number of winning balls to 1 reaches six, the expansion opening is forcibly terminated. On the other hand, when the stop symbol of the ordinary symbol display unit 45 is the specific symbol in the second and third probability states and the second and third symbol change states, which will be described later, 1.7.
The opening and opening of the first-type starting port 11 for two seconds are performed three times at intervals of 2 seconds (narrow opening during this period), and the number of winning balls to the first-type starting port 11 during the widening and opening is further reduced. When the number reaches six, the expansion opening is forcibly terminated.

On the back of the game board 3, a special symbol change start switch 55 for detecting a ball winning the first kind starting port 11 is provided in a winning ball passage, and by detecting the winning ball. The symbol change of the special symbol display device 43 is started. At this time, regarding the number of balls that have won the first-type starting port 11 during the special symbol change, that is, the number of times the special symbol change is started, the number of holdings (in this example, a maximum of four times) is determined by the special symbol change number. The information is displayed on the storage display 51, and the number of displays on the display 51 is reduced by reducing the number of storages.

The normal symbol variation start left gate 19 and the normal symbol variation start right gate 21 are provided on the left and right sides of the image display device 9 and include ordinary symbol variation start switches 56 and 57, respectively. , 57, by detecting a game ball passing through both gates 19, 21, the symbol change of the ordinary symbol display device 41 is started.

The special winning opening 15 is provided below the first type starting opening 11 and includes a solenoid 59 for opening a special winning opening and an opening / closing plate 61 which is opened and closed by the solenoid 59. The special winning opening 15 has a specific area winning opening 63 which is normally closed when the opening / closing plate 61 is opened, and which opens when opened. Further, the specific area winning opening 63 has an opening / closing door (not shown) which is opened and closed by a specific area opening solenoid 64 under predetermined conditions. The specific area winning opening 63 is provided with a specific winning ball detection switch 65 for detecting a specific winning ball, and the detection of the winning ball establishes a right to continue opening the special winning opening 15 again. A winning ball count switch 67 for detecting the number of winning balls is provided substantially at the center of the special winning opening 15.

The operation of the special winning opening 15 will be described. As described above, the game ball wins the first kind starting port 11,
When a winning symbol is detected by the special symbol change start switch 55, the change of the special symbol is started on the left display portion 50a, the middle display portion 50b, and the right display portion 50c of the image display portion 50 of the special symbol display device 43. After a predetermined time change, for example, the left display unit 50a, the middle display unit 50b, and the right display unit 50
c, left display unit 50a, right display unit 50c, middle display unit 5
The special symbols fluctuate and stop in the order of 0b and the stopped symbols are fixedly displayed. When the combination of the stop display symbols at that time becomes a predetermined special jackpot combination, for example, a so-called zigzag line composed of the same symbol combination, the jackpot is established. At the time of the big hit, the opening and closing plate 61 of the big winning opening 15 is opened to receive the game ball falling on the surface of the gaming surface 6 so that the big winning opening 15 can be won. The open / close plate 61 is closed after a predetermined time (for example, 29 seconds) has elapsed or when the number of winning balls detected by the winning ball count switch 67 reaches a predetermined number (for example, 10). . Further, every time the specific winning ball detection switch 65 detects a winning ball to the specific area winning opening 63, the right to repeat the jackpot is generated again, and a predetermined maximum number of times (for example, a maximum of 16 times), the opening / closing plate 61 is opened. It is designed to open repeatedly.

The control of the symbol variation in the special symbol display device 43 is performed by a main control circuit 70 shown in FIG. 3 and a display control circuit 81 connecting the circuit 70 and the special symbol display device 43.

The main control circuit 70 has a CPU inside.
A one-chip microcomputer 71 including a RAM 72, a RAM 73, and a ROM 74; an I / O (input / output) bus 75 connecting the computer 71 and the display control circuit 81;
A power supply circuit 76, an output port 77, a driver 78,
It is composed of a buffer gate 79, a low-pass filter 80 and the like.

The CPU 72 includes a control section, an operation section, various counters, various registers, various flags, and performs arithmetic control. A random number that determines the probability of occurrence of “open” is also generated. The RAM 73 has a storage area for a detection signal of the special symbol variation start switch 55 and a detection signal of the ordinary symbol variation start switches 56 and 57,
A storage area for various random numbers generated in U72, a storage area and a flag for temporarily storing various data, and a work area for the CPU 72 are provided. Further, in the ROM 74,
In addition to a control program and control data for the game, a determination value of a big hit and a hit by a normal symbol in each game state described later is written. In addition,
The driver 78 has a first-class starting port 11 and a large winning port 1
5, an ordinary symbol display device 41, an ordinary symbol variation number storage indicator 47, a special symbol variation number storage indicator 51, various decorative lamp LEDs 86, and the like are connected, and a special symbol variation start switch 55, an ordinary symbol is connected to the low-pass filter 80. The change start switches 56 and 57, the specific winning ball detection switch 65, the winning ball count switch 67, and the like are connected.

The display control circuit 81 has a control unit, a calculation unit, various counters, various registers, various flags, and the like, and has a CPU for performing arithmetic control, a storage area for various data, and a work area for the CPU. A RAM having
A ROM or the like in which design data such as display data for the image display unit 50 and various display programs are written is provided.

The display data written in the ROM of the display control circuit 81 is displayed on the image display unit 50 when a big hit is established. ].
On the other hand, the symbol data written in the ROM of the display control circuit 81 includes the left display unit 50 of the image display unit 50.
a, special symbols displayed on the middle display 50b and the right display 50c, respectively, in this embodiment, "1, 2, 3, 4, 5, 5
6, 7, 8, 9, 9, Fri, Sakura, Jade ”.

This pachinko gaming machine has a probability variation function and a time shortening function. When the jackpot is established, the combination of the jackpot symbols is a combination of positively-variable symbols, such as "3333" and "7777". , 'Sakura Cherry Blossom', 'Jade Ball'
When a jackpot occurs in any of the above, in addition to the occurrence of the jackpot (special game state), a probability change occurs after the end of the jackpot, that is, the next jackpot occurrence probability is higher than the first probability state in normal time to the second probability state. The state is shifted, and the second probability state continues until the next jackpot. Furthermore, the combination of the jackpot symbol is a combination of time saving symbols '111', '555', '999',
When a big hit is made in any of “gold, gold, gold”, the special symbol change time of the image display units 50a, 50b, 50c is changed to the second symbol change state in which the special symbol change time is shorter than the first symbol change state in a normal time after the jackpot. The second symbol change state is continued until the symbol changes a predetermined number of times (for example, 100 times), and returns to the first symbol change state again when the symbol change number reaches the predetermined number.

Further, as shown in Table 1, the counters of the CPU 72 of the main control circuit 70 in this embodiment include a label -RNDTA, a label -RNDZA,
Label-RNDZ1, Label-RNDZ2, Label-R
NDZ3, label-RNDFA, label-RNTDB,
There are eight types of random counters (random numbers) of label-RNDTC, and others are label-CA. The label-RNDTA, label-RNDZA, label-R
NDZ1, Label-RNDZ2, Label-RNDZ3
Label-RNTDB and label-RNDTC are labeled T
HR1 to HR4 (special symbol storages 1 to 4), and the label-RNDFA is labeled UHR1 to UHR4.
(Ordinary symbol memories 1 to 4). As the random counter, one for selecting a method of changing the special symbol of the image display unit 50, such as whether or not to reach at the time of detachment, and one for selecting a temporary stop symbol (temporary stop symbol) when the special symbol changes. Etc. may be added as appropriate. The operation of each counter will be described below.

[0029]

[Table 1]

The label -RNDTA is a random counter for determining a jackpot or a miss, and its numerical value range is from "0" to "486". This label-RNDTA
Starts from '0' when the pachinko machine is powered on,
1 every predetermined interruption time (for example, 2.000 ms)
Are added, and when the numerical value becomes '486', it becomes '0' again.
And the above addition is repeated. The numerical value of the label -RNDTA is extracted when the game ball wins the first kind starting port 11 and is detected by the special symbol change start switch 55, and is compared with a predetermined jackpot comparison value to determine whether or not the jackpot is a jackpot. Is determined. In this embodiment, in the first probability state in normal times, '0' to '48
If the hits are '7' and '257' out of 6 ', a jackpot is established (jackpot occurrence probability = 2/487), and' 7 'and' 25 'are set in the second probability state where the probability has changed after the end of the jackpot.
In the case of “57”, “157” and “357” in addition to “7”, a jackpot is established (jackpot occurrence probability = 5 /
487), and in the third probability state described later, a jackpot is established if the flag is' 57 'and' 157 'in addition to 7' and '257' (jackpot occurrence probability = 4/48).
7). In addition, before the determination of the success or failure is completed, the game ball may win the first-type starting port 11 and the value of the label -RNDTA may be extracted again.
A maximum of four stored extracted values (updated extracted numerical values) of A, excluding the currently determined extracted value, are stored in the RA of the main control circuit 70.
It is stored in the storage area of M73, and is sequentially subjected to determination.

When the label -RNDZA is a jackpot,
Left display part 50a, middle display part 50 of the image display part 50
b, to determine a big hit symbol that is stopped at the same position on the right display unit 50c. This label-RNDZA is
It consists of numbers from '0' to '11', and is '0' when power is turned on
Starting from the above, add '1' for each interruption time,
When it reaches "11", it repeats returning to "0" again. The numerical value of the label-RNDZA is extracted when the winning ball of the first kind starting port 11 is detected by the special symbol change start switch 55, and the number of the main control circuit 70 is up to four except for the symbol for which the big hit is displayed. Is stored in the RAM 73. A symbol corresponding to each numerical value of the label -RNDZA is assigned in advance. In the embodiment, symbols are assigned as shown in Table 2 to the numerical value of the label -RNDZA.

[0032]

[Table 2]

Label-RNDZ1, Label-RNDZ
The label 2, RNDZ3, is used for determining a lost symbol to be stopped and displayed on the image display unit 50 when a large hit is lost. The label-RNDZ1
Is the left display unit 50a, and the label -RNDZ2 is the right display unit 50.
c, label-RNDZ3 respectively correspond to the symbol of the middle display part 50b. This label-RNDZ1, label-RN
DZ2 and label-RNDZ3 are '0' to '1 respectively.
It is composed of a numerical value of 1 '. And the label-RND
When the power is turned on, the value of Z1 starts from '0' and is incremented by '1' at each interruption time. When returning from '11' to '0' again, the value of label-RNDZ2 is incremented by '1'. By repeating the addition, the label-RN
When the value of DZ2 increases to “11” and returns to “0” again, the value of label-RNDZ3 is incremented by “1”. Thereby, the label -RNDZ1,
Even if the random number ranges of the label-RNDZ2 and the label-RNDZ3 are the same, the label-RNDZ1, the label-
Synchronization (addition with the same combination) of RNDZ2 and label-RNDZ3 can be avoided. Further, in this embodiment, label-RNDZ1, label-RNDZ2,
When the numerical value of the label -RNDZ3 matches, the numerical value of the label -RNDZ3 is subtracted by one.

The label-RNDZ1 and the label-RND
Symbols corresponding to the numeric values of Z2 and label-RNDZ3 are assigned in advance. In this embodiment, label-RNDZ1, label-RNDZ2, label-RN
Symbols are assigned to the numerical values of DZ3 as shown in Table 2 above. Each time a winning ball is detected by the special symbol change start switch 55, a label -RNDZ
1, a label-RNDZ2, a label-RNDZ3, and a combination of numerical values extracted from the label-RNDZ3.
0 left display unit 50a, middle display unit 50b, right display unit 50c
The stop symbol displayed on is determined. Label-RND
The extracted numerical values of Z1, label-RNDZ2, and label-RNDZ3 are stored in the RAM 73 of the main control circuit 70 in a predetermined number, up to a maximum of four in this example, excluding the numerical value for the missing symbol being displayed.

The label-RNDFA is normally displayed on the symbol display section 4.
The normal symbol to be stopped and displayed at 5 is determined, and the hit and the loss of the normal symbol are determined.
When the power is turned on, the value starts from '0' and is incremented by '1' at each interruption time. After reaching '9', the addition is repeated starting from '0'. The value of this label-RNDFA is represented by a normal symbol change start left gate 19 and a normal symbol change start right gate 21.
The game ball that has passed through the normal symbol change start switch 56,5
Each time it is detected in step 7, up to four pieces are stored in the RAM 73 of the main control circuit 70 except for the one for the ordinary symbol being displayed.

In addition, a normal symbol corresponding to each numerical value of the label -RNDFA is assigned in advance. In the embodiment, when the extracted numerical value of the label-RNDFA is "1", the extracted symbol of the label-RNDFA is directly changed to "1", and the extracted numerical value of the label-RNDFA is directly changed to "1". Is assigned as a normal symbol to be stopped and displayed.

Further, in this embodiment, the extracted numerical value of the label-RNDFA is "1", "3", "5",
In the case of odd numbers of '7' and '9', it is a normal symbol hit, and in the normal game state in peacetime (in the first probability state and in the first symbol change state), it is 0.
The first kind opening 11 of the first kind opening 11 for 4 seconds is performed once, while the first kind opening 11 for 1.7 seconds in the second and third probability states or the second and third symbol change states. Is expanded and opened three times. Note that the label-RNDFA extraction values are '0', '2', '4',
When the numbers are even numbers of '6' and '8', the pattern usually falls off, and the first-type starting port 11 remains in the narrow and open state.

The label -RNTDB is the first in normal times.
A random counter (corresponding to a probability switching determining means of claim 3) for determining whether or not to transition from the probability state to a third probability state having a higher jackpot occurrence probability than the first probability state. In the example, the value range is' 0 'to' 4
9 '. When the power of the pachinko gaming machine is turned on, this label -RNDTB starts from '0' and is incremented by one every interruption time. When the value becomes '49', it returns to '0' and repeats the addition. It has become.
If the numerical value of the label-RNDTB satisfies a predetermined condition, in this embodiment, the number of special symbol changes from the end of the final jackpot (previous jackpot) in the first probability state is equal to or more than a specific number (for example, 1000). , And extracted each time it is not in a special state (including the jackpot state and the second and third symbol fluctuation states), and the state is shifted to the third probability state by being compared with a predetermined shift comparison value. It is determined whether or not. In this embodiment, the label -R
If the extracted value of NDTB is “10”, the transition to the third probability state is determined.

The label RNDTC is the first in normal times.
6. A random counter for determining whether to shift from the symbol variation state to a third symbol variation state in which the symbol variation time of the image display unit 50 is shorter than the first symbol variation state. In the embodiment, the numerical value range is '0' to '49'. When the power of the pachinko game machine is turned on, this label-RNDTC is set to "0".
, And is incremented by one for each interruption time,
When the numerical value becomes '49', it returns to '0' again and the above addition is repeated. When the predetermined condition is satisfied, the value of the label -RNDTC is, in this embodiment, when the number of special symbol changes from the end of the final jackpot in the first symbol change state becomes a specific number (for example, 1000) or more, Moreover, it is extracted each time it is not in the special state (including the jackpot state and the second and third probability states) and is compared with a predetermined shift comparison value to determine whether to shift to the third symbol change state. Is done. In this embodiment, the extracted value of the label-RNDTC is "10", "2".
If it is 0 'or' 30 ', the transition to the third symbol change state is determined.

The label -CA indicates the number of special symbol changes from the last jackpot (previous jackpot) in the first probability state (or the first symbol change state) in normal times, or more precisely, from the end of the last jackpot state. A counter for counting (the first probability period determining means of claim 3 or the first probability period determining means of claim 5);
It corresponds to symbol fluctuation period determination means. ). The label -CA starts from '0' at the end of the final jackpot, and is incremented by one each time a game ball is awarded in the first kind starting port 11 and detected by the special symbol change start switch 55, and the numerical value is increased. When a specific value, in the embodiment, a jackpot, is returned to '0' again, the above addition is repeated.
In this embodiment, the label -CA is used also as the first probability period determination means and the first symbol variation period determination means. Of course, two counters for counting the number of special symbol variations are provided, and one of them is provided. As the first probability period determination means,
The other may be used as first symbol variation period determination means.

Next, a method of shifting to the third probability state, a method of shifting to the third symbol change state, and the like will be described in detail with reference to the flowchart of FIG.

First, when the first kind starting opening 11 is won and detected by the special symbol change start switch 55,
It is not a jackpot state, and is not in a probability variation state (second probability state or third probability state) or a symbol variation time reduction state (second symbol variation state or third symbol variation state), that is, a first probability state, The main control circuit 7 determines that the first symbol is in a variable state (normal game state).
0 based on the control program written in the ROM 74 (S10), and the label-R
NDTA is "7" or "25" for big hits
It is confirmed based on the control program that 7 ′ has not been extracted (S11).

Next, based on the label-CA, it is determined whether or not the number of special symbol changes of the image display unit 50 has reached a specific number (for example, 1000) from the final jackpot (S1).
2). If no big hit has been made since the power-on, it is determined whether or not the number of special symbol changes since the power-on has reached a specific number. When the number of times of the special symbol change reaches a specific number, the RAM of the main control circuit 70
The stored value of the label -RNTDB is read from 73 (S13), and it is determined whether or not the stored value is "10" (S13).
14).

When the stored value of the label-RNDTB is "10", a probability variation flag check on the program is called, and the next prize to the first type start-up port 11 is used to compare the label-RNDTA with the label-RNDTA. The number (the number of contrast values for the jackpot) is more than two in the first probability state, in this example four (less than five) in the second probability state (specifically, “7” in the first probability state) And '257' plus '5'
7 'and' 157 'are added) to shift to the third probability state in which the next jackpot occurrence probability has increased from 2/487 of the first probability state to 4/487 (S15).

In this example, when shifting to the third probability state,
The background color of the image display unit 50 is changed to a color different from the first probability state and the second probability state (S16). Specifically, the background color of the image display unit 50 is set to blue in the first probability state, the background color of the image display unit 50 is set to red in the second probability state, and the background color of the image display unit 50 is set to the third probability state. Yellow etc. In this way, it is possible to easily recognize that the player has transitioned to the third probability state, thereby increasing the player's expectation of the jackpot, and at the same time freshness and excitement for the game. Degree and tension can be increased.

In this example, the third probability state continues until the number of special symbol changes of the image display unit 50 after the transition to the state reaches a predetermined number (for example, 20). If the jackpot is not established during the probability state and the number of times of the special symbol change reaches a predetermined number, the probability change flag check is called, and the label-RNDTA is again executed.
Returns to two first probability states. In the third probability state, in addition to the probability fluctuation, the fluctuation time of the special symbol of the image display unit 50 is shortened, or the extended opening state of the first type starting port 11 is increased,
The frequency of occurrence of the widening and opening state may be increased so that game balls can easily enter the starting opening 11.

On the other hand, if the stored value of the label -RNTDB is not "10", the state does not shift to the third probability state, but remains in the normal first probability state (low probability state). At the same time, the stored value of the label-RNDTC is read from the RAM 73 of the main control circuit 70 (S17),
It is determined whether the stored value is '20' or '30' (S18).

When the stored value of the label -RNDTC is "20" or "30", a symbol variation time reduction flag check on the program is called, and the next type 1 starting opening 11 is awarded. , The change time of the special symbol of the image display unit 50 is shorter than the normal first symbol change state (specifically, half of the change time of the first symbol change state).
The setting is made, and the process shifts to the third symbol change state (S19). If the stored value of the label -RNDTC is other than '20' or '30', the state does not shift to the third symbol change state, but remains in the normal first symbol change state.

In this example, the third symbol change state continues until the number of special symbol changes of the image display unit 50 after the transition to the state reaches a predetermined number (for example, 50 times). When the special symbol variation count reaches a predetermined number without a jackpot being established during the variation status, the symbol variation time reduction flag check is called, and the first symbol variation time of the image display unit 50 is long again in the first symbol variation state. To return to. In addition, in the third symbol change state, in addition to shortening the special symbol change time of the image display unit 50, the first type start-up port 11 is extended or opened, or the first type opening 11 is expanded or opened. By increasing the frequency, that is, by increasing the probability of hitting a normal symbol, it is possible to make it easier for game balls to win the first starting port 11 than in the first symbol change state. By doing so, it is possible to increase the sense of speed and the sense of tension for the game in the third symbol change state.

The present invention is not limited to the above-described embodiment, and can be implemented by appropriately changing a part of the configuration without departing from the spirit of the invention. For example,
In the above embodiment, the first probability period determination means or the first probability period determination means
As a symbol change period determining means, a label-CA that counts the number of special symbol changes from the end of the final jackpot is used, and when the number of special symbol changes reaches a specific number, the state changes to the third probability state or the third symbol change state. The determination as to whether or not to make a transition is made, but the present invention is not limited to this. As the first probability period determination unit or the first symbol variation period determination unit, a timer or the like that measures the elapsed time from the end of the final big hit is measured. The device may be used to determine whether to shift to the third probability state or the third symbol change state when the elapsed time reaches a predetermined time.

[0051]

As shown and described above, in the pachinko gaming machine according to the present invention, in the first probability state where the jackpot occurrence probability is low or in the first symbol variation state where the special symbol variation time of the image display unit is long. When a predetermined condition different from the jackpot establishment condition is satisfied, the state shifts from the first probability state to the third probability state in which the jackpot occurrence probability is higher than the first probability state, or from the first symbol change state to the first probability change state. Since the game shifts to the third symbol fluctuation state in which the symbol fluctuation time is shorter than the symbol fluctuation state, even if the big hit is not established, the player can feel the game feeling similar to the second probability state or the second symbol fluctuation state in the case of the big hit. You can taste. for that reason,
In addition to reducing the irritation of the player due to the jackpot not being established for a long time, it is possible to eliminate problems such as loss of nervousness to the game and attenuation of the willingness of the game. Can be given, and a game can be enjoyed more happily than a conventional gaming machine.

Further, when shifting from the first probability state to the third probability state, the jackpot occurrence probability of the third probability state is different from the jackpot occurrence probability of the second probability state as in the invention of claim 2. If determined, the interest and freshness of the game will further increase. Further, when shifting from the first symbol variation state to the third symbol variation state, the special symbol variation starting port is expanded and opened (open state) as in the invention of claim 6.
By increasing the length of the opening and the frequency of occurrence of the widening and opening state, the winning of the game ball to the starting port in the third symbol change state becomes easier than in the first symbol change state. If this is the case, it is possible to increase the sense of speed and the sense of tension for the game in the third symbol change state.

In addition, as in the third or fifth aspect of the present invention, when the first probability state or the first symbol fluctuation state continues for a predetermined period or more, the third probability state or the third symbol fluctuation state. If it is possible to shift to, the jackpot becomes easy to be established, the loss of a large amount of the player can be suppressed, the soundness of the game can be achieved, and for the game hall, the game for one game machine There is also an advantage that the time is longer and the operation rate is improved. Further, as in the third or fifth aspect of the present invention, the state is shifted to the third probability state or the third symbol fluctuation state by the probability switching determining means or the symbol fluctuation time shortening determining means acting by an accidental factor such as winning of a game ball. If the player decides whether or not to play,
It is not possible to assume whether or not to shift to the probability state or the third symbol fluctuation state, and it is possible to maintain the contingency (fairness) which is the original fun of this kind of gaming machine.

[Brief description of the drawings]

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

FIG. 2 is a rear view of the gaming board of the pachinko gaming machine according to the embodiment.

FIG. 3 is a block diagram schematically showing system control of the pachinko gaming machine according to the embodiment.

FIG. 4 is a flowchart relating to an example of control for shifting to a third probability state or a third symbol change state.

[Explanation of symbols]

 Reference Signs List 3 game board 6 game surface 9 image display device 11 first-class start-up 15 large winning opening 41 ordinary symbol display device 43 special symbol display device 50 image display section

Claims (6)

[Claims] When a predetermined condition is satisfied when a jackpot is established, a pachinko gaming machine in which the next jackpot occurrence probability shifts to a second probability state higher than the first probability state in normal times, When a predetermined condition different from the condition for shifting to the second probability state is satisfied in the state, the first probability state is shifted to a third probability state having a higher jackpot occurrence probability than the first probability state. A pachinko gaming machine characterized by being constituted. 2. The jackpot occurrence probability of the third probability state and the second probability
2. The pachinko gaming machine according to claim 1, wherein the jackpot occurrence probability of the probability state is determined to be different. 3. A first probability period determination means for determining that the first probability state has continued for a predetermined period or more, and a first probability period determination means for determining that the first probability state has continued for a predetermined period or more by the determination means. The pachinko gaming machine according to claim 1 or 2, further comprising a probability switching determining means for determining whether to shift from the probability state to the third probability state. 4. A start port, and an image display section for displaying a plurality of symbols in a fluctuating display after a game ball is awarded to the start port, and displaying the symbols in a stopped state. In a pachinko gaming machine in which the symbol change time is shifted to the second symbol change state which is shorter than the first symbol change state in normal times, the shift to the second symbol change state is performed during the first symbol change state. If certain conditions that are different from the conditions for
A pachinko gaming machine configured to transition from a first symbol change state to a third symbol change state in which the symbol change time is shorter than the first symbol change state. 5. A first symbol variation period determining means for determining that the first symbol variation state has continued for a predetermined period or more, and when the determination means determines that the first symbol variation state has continued for a predetermined period or more. The pachinko gaming machine according to claim 4, further comprising a symbol change time reduction determining means for determining whether to shift from the first symbol change state to the third symbol change state. 6. The game machine according to claim 4, wherein a game ball can be awarded to the starting port in the third symbol change state more easily than in the first symbol change state. Pachinko machine.