JP3880141B2 - Bullet ball machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pachinko gaming machine and a ball game machine such as a coin gaming machine in which a predetermined number of enclosed pachinko balls are ejected by coins to compete for scores.
[0002]
More specifically, the present invention relates to a ball game machine in which a symbol change of a symbol display means is started when a game ball wins a specific winning opening.
[0003]
[Prior art]
At game stores that operate with ball and ball machines such as pachinko machines in operation, the number of balls that the player bounces with the ball and ball machines (number of shots) and pays the player as a prize ball. It is necessary to consider the number of balls that have been broken. For example, in the case of a pachinko gaming machine, if the number of shot balls consumed by a player on a single pachinko machine is less than the number of balls, the player wins and the game shop side is negative. Therefore, for a game store, the ratio of the number of award balls (the number of balls out of the number of balls launched) to the number of game balls consumed by a player for each pachinko machine, the so-called winning rate (divisor), is determined by the management of the game store. It is necessary to adjust the actual pachinko machine so that the value is appropriate, and in the past, this adjustment was left to a person with a special skill called a nail artist.
[0004]
Recently, as a separate game to be performed separately from the normal bullet game, the variable symbol display unit is changed when the launch ball wins in a specific area provided in the game area, and the variable display is stopped in a specific mode. In this case, a ball game machine that allows a player to obtain a large amount of prize balls by opening a variable winning ball apparatus as a “big hit” has become mainstream. In such a gaming machine, since the variable display is controlled to stop in a specific manner with a predetermined probability by a control device such as a microcomputer, the probability of occurrence of a jackpot falls within a roughly scheduled range. However, the probability of winning in a specific area that triggers a jackpot is still left to the nail adjustment of the path to the specific area. In particular, when many of the game balls that are driven into the game area are directed to the specific area by adjusting the nails, the probability of winning the specific area affects the winning rate of the entire pachinko machine. Therefore, when the nail is adjusted to make it easier to win a specific area in order to set the winning rate of the pachinko machine high at the game store side, the variation time of the symbol is different from the time the player is playing the game. The proportion increases.
[0005]
In such a model, the general player's interest is attracted by whether or not the fluctuating symbol is stopped in a specific manner, so that during the symbol fluctuating, the player stops the ballistic operation of the game ball. There are many cases where you can expect to see variations in symbols. Such interruption of the game leads to a decrease in the operating rate for the amusement store, leading to a decrease in sales.As a countermeasure, even if a game ball wins a specific area during symbol fluctuation, Pachinko machines that guarantee the variation of symbols by the number of specific winning balls have appeared. In this type of gaming machine, during the symbol variation, each time a game ball wins a specific area, a lamp is turned on to display the number of symbol variation rights to the player. Without interrupting the operation, a ball can be shot aiming at a specific area in order to obtain the right to change symbols.
[0006]
[Problems to be solved by the invention]
However, the skilled player pays attention to the variation time of the symbol, and as the ratio of the variation time of the symbol to the gaming time is larger, the nail adjustment is performed so that the game store can easily win a specific area as described above. You can select a pachinko machine with a high winning rate based on the symbol variation time. As a result, there arises a problem that the difference in profits obtained between the skilled player and the normal player becomes large and the game control purpose is not met.
[0007]
Therefore, the object of the present invention is that it does not require nail adjustment by a special skill, is not greatly influenced by the skill of the player in the actual game, and produces a result in accordance with the planned winning rate, and the game It is to provide a ball game machine in which it is difficult to judge the magnitude of the winning rate from the comparison of the symbol variation time with respect to the time of performing.
[0008]
[Means for Solving the Problems]
The first aspect of the present invention includes a plurality of special Fluctuating the design special When the symbol display means and the game ball wins, special A start winning opening at which the symbol change of the symbol display means is started, and a shot ball winning determination means for determining a prize every time a game ball is launched into the game area; , Count means for performing an addition operation every time the firing ball winning determination means determines that a winning is achieved, and performing a subtraction operation every time a game ball is won at the start winning opening And this If the counting value by the counting means is a certain value or more, the winning frequency of the game ball to the start winning opening increases. Pre-set to in front Complete In award judgment plural Winning probability One from Choice Each time the game ball wins a prize at the start winning opening, and waits until the variable display corresponding to the winning is started from the winning point. time Win a prize The A timing means for starting timing for each game ball; Said special Symbol change time of symbol display means Corresponding to the winning probability selected by the selecting means. Said special Symbol change time of symbol display means In accordance with the winning probability selected by the selection means, control is performed so that the waiting time is subtracted from the preset time so that it is short when the winning probability is high and long when the winning probability is low. With control means It is characterized by that.
[0011]
First 2 Aspect 1's Aspect Bullet In the ball game machine, the symbol variation time of the special symbol display means is selected simultaneously with the selection of the winning probability in the winning determination.
[0015]
[Action and effect]
The fired ball winning determination means performs a winning determination every time the fired ball is fired. The counting means performs an addition operation when the determination result is a win, and performs a subtraction operation each time a game ball wins a winning prize opening. Accordingly, the counted value counted by the counting means is likely to increase when the winning probability of the winning determination is high, and does not increase easily when the winning probability is low. In addition, when the game ball wins the start winning opening, the count value decreases, and when the game ball wins the start winning opening even though the determination result is not winning in the winning determination, the count value may be lower than the initial value. In this way, the count value goes up and down, so if one numerical value is determined, the count value goes up and down the numerical value (a constant value). When the count value is equal to or greater than a certain value, the winning frequency at the start winning opening is configured to increase.
[0016]
When a game ball wins the start winning opening, the symbol change of the symbol display means is started.
[0017]
A plurality of winning probabilities in the shot ball winning determination are set, and any one of the winning probabilities can be selected and set.
[0018]
Regardless of whether the selected winning probability is high or low, the symbol change time of the symbol display means per game time is adjusted to be substantially the same. That is, as the winning probability increases, the count value tends to exceed a certain value, and the winning frequency of the game ball at the start winning opening increases, so the number of symbol fluctuations increases and the symbol fluctuation time should be uniform. For example, the symbol variation time per game time will increase, but the higher the selected winning probability, the shorter the symbol variation time per game, or the more times the game ball is won at the start prize opening, By adjusting the symbol variation time per game time to be approximately the same by shortening the symbol variation time, etc., the player should not be able to select a gaming machine based on the symbol variation time. Can do.
[0019]
As a method of adjusting the symbol variation time, a time measuring unit is provided to start timing each time a game ball is won at the start winning opening, and a time obtained by subtracting the time measured from the symbol variation time to the symbol variation start, The design was changed. When the winning probability is high and the winning frequency at the start winning opening is increased, a game ball is won at the starting winning opening during the symbol variation, but the next symbol variation is not started until the symbol variation is completed. In the next symbol variation, the symbol variation time per game time can be adjusted by subtracting this waiting time from a predetermined symbol variation time.
[0020]
When multiple game balls win a start winning opening during one symbol variation time, each waiting time is deducted, so the winning timing affects the symbol variation time, and the symbol variation time is different for each symbol variation. Change, it becomes difficult for the player to guess the level of the winning rate, and even if a skilled player of pachinko game continues to win a lot of game balls in a specific area, the symbol variation time will be shortened, so If the player stops firing during the change, the impact will be less.
[0021]
The adjustment of the symbol variation time as described above is performed when a lot of game balls are won at the start winning opening during symbol variation and a lot of symbol variation waiting times occur in the actual game situation of the ball game machine. By changing the symbol variation time per time, the symbol variation time per total game time is controlled to an appropriate average time, and can be applied to any kind of ball game machine.
[0023]
If a corresponding symbol variation time is selected from a plurality of symbol variation times set at the same time as the selection of the winning probability, a setting error does not occur, and it is possible to save time and effort for individual selection and setting. it can.
[0026]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a front view showing a game board surface of a pachinko gaming machine as an example of a ball game machine according to the present invention.
[0027]
The player drives the game ball launching device 20 shown in FIG. 4 by operating a handle for launching a game ball (not shown), and drives the game ball (pachinko ball) into the game area 10 formed on the game board 1. To play games.
[0028]
In the game area 10, a normal symbol display device 2 and a special symbol display device 3 are provided as symbol display means capable of variably displaying a plurality of symbols (including numbers and symbols).
[0029]
The normal symbol display device 2 is composed of a single-digit 7-segment LED display. The special symbol display device 3 is composed of a liquid crystal display, and electrically displays the rotation of three rows of mechanical reels in the slot machine on the display screen. Both the normal symbol display device 2 and the special symbol display device 3 can use a mechanical reel device used in a slot machine, but an electrical indicator such as a liquid crystal, LED, CRT, or plasma display is also used. In this case, for example, the normal symbol display device 2 can be configured with a liquid crystal display, or the special symbol display device 3 can be configured with a 7-segment LED display. Alternatively, the normal symbol display device 2 may display a plurality of digits of identification information, and the special symbol display device 3 may display the single digit identification information.
[0030]
Normal symbol operating gates 6a and 6b as specific areas in which the normal symbol display device 2 can be variably displayed are provided on the left and right of the lower side of the special symbol display device 3, and a game ball that has passed through each gate. As specific winning ball detecting means for detecting (specific winning ball), normal symbol operating switches 7a and 7b are provided.
[0031]
Furthermore, below the special symbol display device 3, it is possible to convert between a first state that is disadvantageous to the player and a second state that is advantageous to the player. A mouth 4 and a large winning mouth (so-called attacker) 5 for paying out 15 prize balls when there are winning balls are provided. The normal symbol display device 2, the start winning port 4 and the big winning port 5 are unitized as a variable winning ball device 9 and are installed at the lower part of the game area. The start winning opening 4 is composed of a variable winning ball apparatus that maintains a winning space in which about one game ball can win even in the first state.
[0032]
On the game board surface, lamp windmills 11a and 11b having a light emitting part on the back side, normal windmills 12a and 12b, and a general winning opening 13a to pay out 15 prize balls to the player every time there is a winning ball. 13g and board surface side lamps 14a and 14b are provided.
[0033]
As shown in FIG. 2, the variable winning ball apparatus 9 has a structure that is fixed to the gaming board 1 by sandwiching the gaming board 1 between the base 91 and the claw portions 92 provided on the left and right sides of the winning ball apparatus. Yes. A general winning opening 13e is provided at the uppermost portion on the surface side of the base 91, and a start winning opening 4 is provided below the general winning opening 13e. The start winning opening 4 is a variable winning device that makes it easy or difficult to win a game ball by opening and closing the movable wing piece. In addition, a large winning opening 5 is provided below the start winning opening 4. The big winning opening 5 is composed of a variable winning device having a configuration that makes it easy or difficult to win the game ball by sliding the movable arm to the left and right.
[0034]
The normal symbol display device 2 is provided at the lowermost part of the game area 10, and four normal symbol storage lamps 14 are provided around it. The normal symbol memory lamp 14 is turned on when a game ball wins the normal symbol operating gates 6a and 6b, and indicates the number of times that the normal symbol display device 2 can perform variable display. That is, the four lamps are sequentially turned on from the second time to the fifth time when a game ball is won in the normal symbol operation gates 6a and 6b while the normal symbol display device 2 is variably displayed. The player can be notified of the number of times that the symbol display device 2 can perform variable display (5 is the upper limit). The 6th and subsequent wins are not counted, Invalid become.
[0035]
The special symbol display device 3 is also provided with four special symbol memory lamps 15 that are turned on when a game ball wins the start winning opening 4 when the symbol changes. The four lamps sequentially light the game balls at the start winning opening 4 from the second time to the fifth time, and inform the player of the number of times the special symbol display device 3 can be varied (upper limit is five times). . The 6th and subsequent wins are not counted, Invalid become.
[0036]
On the back side of the base 91, a start prize opening solenoid 30 for converting and driving the start prize opening 4, and a start prize opening as a start prize ball detecting means for detecting a game ball (start prize ball) won in the start prize opening 4. Necessary for counting the switch 31, the big prize opening solenoid 32 that drives the big prize opening 5, and counting the game balls that won the big prize opening 5 and determining whether or not to open the big prize opening 5 again. And a big prize opening switch 33 for generating a simple detection signal.
[0037]
FIG. 3 shows the configuration of the normal symbol operating gate 6. The gate 6 has a structure in which the claw portion 62 and the base 61 sandwich the game board 1 and the normal symbol operation switch 7 provided inside the gate is attached so as to protrude from the game board surface.
[0038]
In the gaming machine of FIG. 1, the specific winning balls that have passed through the normal symbol actuating gates 6a and 6b flow down the game board surface, but each time there is this specific winning ball, a certain number of winning balls are paid out to the player. You may do it.
[0039]
FIG. 4 shows an installation position of a detection switch for detecting a game ball (launch ball) and a return ball launched from the game ball launching device. In the figure, the game ball launching device 20 has a structure in which a plunger type solenoid is excited to fire a game ball, but a structure using a rotary solenoid or a motor as a drive source may be used.
[0040]
A fire ball detection right switch 21a and a fire ball detection left switch 21b are provided as fire ball detection means for detecting a game ball fired from the game ball launching device 20. The two shot ball detection switches are for determining whether or not the game ball has been reliably fired. After the drive signal is output to the game ball launching device 20 and the shot ball detection right switch 21a outputs the detection signal, It is determined that the game ball has been fired for the first time when the fire ball detection left switch 21b detects the detection output. Therefore, if the shot ball detection left switch 21b first outputs a detection signal, and then the shot ball detection right switch 21a outputs a detection signal, an error occurs and the game ball is not shot.
[0041]
Further, even if the game ball passes through the fire ball detection right switch 21a and the fire ball detection left switch 21b in order, the return ball detection switch 22 is used to detect a return ball that has weak elasticity and has not reached the game area. Is provided.
[0042]
Next, game control of the pachinko gaming machine as described above will be described. This type of pachinko gaming machine includes a microcomputer as a control means, and thereby controls the entire game. As shown in the block diagram of FIG. 5, the control means of the above embodiment is also configured around a microcomputer.
[0043]
The microcomputer 50 includes a CPU 50A, a RAM 50B, a ROM 50C, and an input / output (I / O) port IC 50D. The microcomputer 50 processes each input signal input from the input circuit 51 in accordance with a program written in the ROM 50C. Then, an output signal is sent from the output circuit 52 to each driving means. In addition, a random number generator 53 that generates a random number used in the progress of each game is connected to the CPU 50A. As the random number generating means, the CPU may generate a random number by updating a numerical value in accordance with a predetermined signal on the program.
[0044]
The input circuit 51 includes a setting key switch constituting the setting switching device 60 (FIG. 15) as described later. unit 62, a setting changeover switch 64, launch ball detection switches 21a and 21b, a return ball detection switch 22, a normal symbol operation switch 7, a start winning port switch 31, a big winning port switch 33 and the like are connected to the output circuit 52. Are connected to a normal symbol display device 2, a special symbol display device 3, a normal symbol memory lamp 14, a special symbol memory lamp 15, a start winning port solenoid 30, a special winning port solenoid 32, and the like.
[0045]
When the power switch is turned on, the microcomputer performs initialization processing of memory and registers, and when an interrupt signal (reset pulse) is generated, it sequentially executes interrupt processing such as update processing of random numbers used in game control. To do.
[0046]
6 and 7 are flowcharts showing a game processing procedure by the microcomputer.
[0047]
When starting the gaming machine, a setting process is performed to select and set the probability that the first random number generated according to the shot ball will be a winning (winning) from among a plurality of set winning probabilities by a setting key operation. (ST11). This setting process will be described later in detail.
[0048]
Next, it is determined whether there is a firing ball (ST12). Here, when there is a detection output from both the launch ball detection right switch 21a and the launch ball detection left switch 21b in accordance with the game ball launched from the launch device 20 by the player's operation, it is determined that there is a launch ball. . At this time, first random number extraction is performed (ST13). That is, one random number value is extracted from the random number generation means at a predetermined timing. This random number extraction timing may be when there is a detection output from the two fired ball detection switches or after a certain time has elapsed. Then, it is determined whether or not the extracted random number value is a predetermined value (winning, that is, winning) (ST14). If “YES” (winning), the winning condition counter as the counting means is incremented by “+1”. However, if it is “NO” (out), the winning condition counter does not change. In this gaming machine, 128 is set as the initial value of the winning condition counter.
[0049]
Here, the function of the winning condition counter will be described. In the pachinko machine shown in FIG. 1, in order to adjust the winning probability independent of the skill of the player, the benefit of opening a start winning opening, for example, in the case of winning as a result of random number extraction by the timing of game ball launch Can be considered. However, not only in pachinko machines, but in ball game machines, it can be said that a game was actually played only after the released game ball was in contact with some member provided in the game area. Such a way of giving a privilege is strange in the light of the basic game in which profits can be obtained according to the skill of the player, and as a result, the player may be distrusted.
[0050]
Therefore, if the result of the random number determination is successful, the result is accumulated in the counter, and the start winning is obtained on the condition that the game ball actually wins the normal symbol operation gate 6 provided in the game area 10. The winning probability in the winning determination of the second random number, which is a condition for opening the mouth, is changed according to the count value of the counter, the time from the opening of the start winning opening 4 until closing, or the opening cancellation condition In the normal symbol display device 2 provided as a condition for changing the opening process conditions such as the number of winning game balls to the start winning opening according to the count value of the counter or opening the starting winning opening 4 The opening of the start winning opening 4 is controlled by changing the symbol variation time according to the count value of the counter and controlling the number of times the normal symbol hit determination (the second random number winning determination) is performed. If, that inspire distrust, such as described above to the player will not.
[0051]
For this reason, when the result of the first random number lottery with the shot ball is a win, it is stored (for example, each time the random number lottery hits, the value of the winning condition counter is incremented by +1).
[0052]
Next, some of the launch balls have passed through the above two switches but returned without reaching the game area 10 due to weak resilience and the like. It is detected by the switch 22. Accordingly, in the process of FIG. 6, it is determined whether or not there is a return ball (ST16). If there is a return ball, the random number is extracted if the random number is extracted for the game ball to be fired next time. Extraction is stopped (ST17).
[0053]
When the game ball launched into the game area 10 wins the normal symbol operating gate 6 and is detected by the normal symbol operating switch 7 (ST18), the second random number is extracted (ST19) and the normal symbol is extracted. The display device 2 is operated to start normal symbol variation (ST20).
[0054]
Note that the second random number extraction may be performed after the normal symbol display device 2 starts operating.
[0055]
Next, it is determined whether or not the value of the winning condition counter is larger than a predetermined value (ST21). For example, when the initial value is 128, the predetermined value is set to a value larger than the initial value of the counter to be used, such as 129 or more. If the result of the determination is greater than a predetermined value, a high probability is selected from the probabilities provided in the second random number winning determination (ST22), while if it is smaller than the predetermined value, a low probability is selected. Then, the second random number winning determination is performed (ST24). Therefore, the winning determination of the second random number is advantageous when the value of the winning condition counter is a predetermined value or more.
[0056]
Instead of the winning probability setting process (ST22, ST23) in the second random number winning determination based on the counted value of the winning condition counter, as shown in FIG. 8, the normal symbol is based on the counted value of the winning condition counter. You may perform the setting process of fluctuation time.
[0057]
That is, when the winning condition counter is larger than the predetermined value, the short symbol variation time data is set (ST22 ′), and when it is small, the long symbol variation time data is set (ST23 ′). With this time adjustment, the number of times that the normal symbol display device 2 is variably displayed and six or more game balls are won in the normal symbol operation gates 6a and 6b is lost, and the number of times the normal symbol fluctuates is reduced. And the number of times of determination of winning of the second random number increases, so that the chance of winning increases.
[0058]
The winning determination of the second random number extracted in ST19 is performed (ST24), and if the result is a win, the winning symbol is stopped and displayed on the normal symbol display device 2 (ST25), and the start winning opening 4 is opened. (ST27). In the case of detachment, the detachment symbol is stopped and displayed (ST26), and the start winning opening 4 is not opened.
[0059]
As described above, the probability that the random number value by the shot ball becomes a predetermined value, the winning probability (ordinary symbol winning probability) or the variation time of the ordinary symbol in the winning determination of the second random number that causes the start winning opening to be in the second state, Is changed by selecting based on a predetermined condition, and the winning probability of the game ball to the start winning start opening 4 is adjusted by changing the condition for opening the start winning opening 4.
[0060]
When a game ball wins the start winning opening 4 and the start winning opening switch 31 outputs a detection signal (ST28), the winning condition counter is decremented by "1" (ST29). This subtraction is the same as adding “−1” in the calculation process. Here, “+1” (addition) as described above results in a condition for opening the start winning opening 4, but conversely, “1” subtraction means starting start winning opening. It will move away from the achievement of the conditions for opening 4. In the above, when one game ball is won at the start winning opening 4, the winning condition counter is decremented by “1”, but two game balls are won and “1” is subtracted or one is won and “ 2 ”may be subtracted.
[0061]
In the opening process of the start winning opening 4 (ST27), the starting winning opening 4 is closed after a predetermined condition, for example, when a predetermined number of winning balls are present after a predetermined time has elapsed.
[0062]
It is also possible to adjust the winning of the game ball to the start winning opening 4 by changing the condition of the opening process according to the count value of the winning condition counter.
[0063]
For example, as shown in FIG. 9, after the start of normal symbol variation (ST20), the second random number winning determination is performed (ST41), and in the case of winning, the winning symbol is stopped and displayed (ST42), and the winning condition counter Is longer than a predetermined value (ST44), and if it is equal to or higher than the predetermined value, a long-time opening process for setting a long time from opening to closing the start winning opening 4 (ST45) Thus, the possibility of winning the game ball at the start winning opening 4 is increased, and when it is less than a predetermined value, the time from when the starting winning opening 4 is opened until it is closed is set short. Perform a short opening process (ST46) As a result, the possibility of winning at the start winning opening 4 is reduced.
[0064]
In addition to changing the opening time of the start winning opening 4, two types of game ball winning numbers are set as closing conditions, and if the winning condition counter is equal to or greater than a predetermined value, a higher number is selected, If the number is less than the value, a low number is selected, and the opening / closing of the start winning opening 4 is adjusted to adjust the probability of winning the game ball to the starting winning start opening 4.
[0065]
If the winning determination of the second random number in ST41 is out, the symbol is not displayed normally (ST43), and the start winning opening is not opened.
[0066]
When a game ball wins the start winning opening 4, as described above, the winning condition counter is subtracted (ST29), the third random number is extracted, the special symbol display device 3 is operated, and the special symbol variation process is performed. (ST31) The game process ends.
[0067]
The special symbol variation process is performed so that the special symbol variation time per game time is substantially the same regardless of the winning probability selected and set in the setting of the first random number winning probability in ST11. This special symbol variation process will be described in detail later.
[0068]
In the game control process including the conversion and other operations of the start winning opening 4 as described above, the random number lottery for determining the probability is whether or not the value of the extracted random number hits a specific value. If the random lottery is always performed within the same range or the same specific value, the result of the lottery is predicted by the player, and the purpose of the game control based on the probability as described above cannot be achieved. Therefore, for example, each time an interrupt signal is generated, the random number lottery can be further changed by changing (that is, updating) a value obtained by adding a constant value (for example, +1) to the previous specific value (for example, a random value that is “winning”). It can be effective.
[0069]
FIG. 10 shows a random number update process performed based on the above-described idea in the pachinko gaming machine described above.
[0070]
First, the jackpot determination random number for determining whether or not to stop the variable display of the special symbol display device 3 in a specific manner (big hit) is updated within a certain range (ST101). This random number is extracted when a game ball wins the start winning opening 4.
[0071]
Next, it is determined whether or not the current gaming state is a high probability state (ST102). This determination is made based on whether or not a flag indicating a specific condition (high probability state) is set (set) at an address specified in the RAM of the microcomputer.
[0072]
In the case of the low probability state (flag set release) in the above determination (ST102), the random numbers extracted according to the six types of fired balls set in the winning probability table storing various winning occurrence probabilities are predetermined values. From the probability data, the setting switching device 60 confirms which one is designated (ST103).
[0073]
After the confirmation, data in the designated random range for low probability is selected (ST104). This low-probability random number range data is data set to lower the probability that the random number extracted according to the launch ball will be a predetermined value by widening the random number update range, There are differences for each of the six probability values set.
[0074]
On the other hand, in the case of the high probability state (flag set) in the determination of ST102, data set to increase the hitting probability of the shot ball by narrowing the random number update range is selected (ST105). As described above, the random number update is continued within the random number update range (ST106).
[0075]
The probability can be adjusted by changing the random number update range as described above. Furthermore, the probability value set in the winning probability table is expressed as “number of random numbers per random number update range”, and the numerator is smaller than the normal denominator. It is possible to finely adjust the probability.
[0076]
Next, the determination random number is updated to determine whether or not to stop the normal symbol in a specific manner. That is, the random number is updated within a predetermined range of the random number generated when the game ball wins the normal symbol operating gate 6 (ST107).
[0077]
In addition, as a production effect until the special symbol is stopped in the case of “big hit”, the random number is updated within a predetermined range of random numbers that cause a different stop process from the special symbol stop process in the normal time (ST108). ), The random number is updated within a predetermined range of the random number corresponding to the special symbol displayed at the time of stoppage in the case of the jackpot (ST109).
[0078]
Furthermore, the random number is updated within a predetermined range of random numbers corresponding to the normal symbol displayed at the time of stopping in the case of winning (ST110), and the random number corresponding to the normal symbol displayed at the time of stopping in the case of a loss is changed. The random number is updated within a predetermined range (ST111).
[0079]
This completes one random number update process and repeats the above procedure. Meanwhile, random numbers are extracted from the corresponding random number update process by the generation of a predetermined detection signal.
[0080]
As shown in FIG. 7, the operation of the start winning opening 4 is controlled to adjust the winning rate. Among these, the winning condition counter and the normal symbol are hit and stopped at the symbol, and the probability that the starting winning opening 4 is opened, In other words, the relationship between the two types of winning probabilities set for determining the winning of the second random number or the two types of normal symbol variation times will be described with reference to FIG.
[0081]
FIG. 11 shows two types of winning probabilities (referred to as normal symbol winning probabilities in the figure) or two types of normal symbol variation time data set for determining the winning of the second random number corresponding to the transition of the winning condition counter value. It shows the transition of switching (in parentheses).
[0082]
The winning condition counter is an 8-bit counter that can take an area of “0 to 255”, and “128” is set as an initial value when the power is turned on or a big hit occurs.
[0083]
Here, when winning in ST14 of FIG. 6, the value of the winning condition counter is incremented by “1” from the initial value “128” to become “129”. At this time, the winning probability data is switched from a low probability to a high probability (ordinary symbol variation time data is switched from a long time to a short time). When the value of the winning condition counter becomes “128” or less, it switches again to a low probability (switches for a long time).
[0084]
The same applies to the case where the opening condition of the start winning port 4 is changed by the value of the winning condition counter. If the winning condition counter is “129” or more, the opening process is performed for a long time (or a large number of winning prizes). If it is “128” or less, the opening process is switched to a short time (or a small number of winning prizes).
[0085]
As shown in FIG. 11, the winning condition counter is decremented every time a game ball wins the start winning opening 4, so if the winning frequency of the game ball to the starting winning opening 4 is high, the value of the winning condition counter is There is also a case where the value decreases further and greatly falls below the initial value (in the case of the counter value 126 in the figure). If the counter value reaches 126, then the first winning determination for each shot ball will not be 129, which is the predetermined value unless the winning condition is counted three times. Be strong.
[0086]
In this way, the subtraction of the winning condition counter is not performed after each of the above determinations (ST21, ST44) but every time a game ball wins at the start winning opening 4, so that the winning ball winning probability is obtained. In addition to adjusting the winning at the start winning opening 4, it is possible to adjust according to the actual winning situation at the starting winning opening 4. In other words, the adjustment based on the probability may result in good luck or excellent skill, and there may be repeated winnings of the game ball to the start winning opening 4. It is possible to make it difficult to win a game ball in the winning opening 4.
[0087]
On the other hand, a plurality of winning probabilities (referred to as per-launching ball probabilities) in the first random number winning determination performed each time there is a firing ball are set so as to be selectable. The probability tables shown in FIG. 12 and FIG. 13 are the probability data for the six types of setting values 1 to 6 stored in the ROM 50C shown in the block diagram of FIG. From the plurality of winning probabilities, a predetermined winning probability is set according to the purpose when the gaming machine is started.
[0088]
In FIG. 12 or FIG. 13, if the set value is 3, Corresponds to “3” A value “7/111” in which the probability per shot ball is set becomes the hit probability of the shot ball. Then, “111”, which is the denominator of this probability, becomes the random number update range, and “7” of the numerator becomes the number of random number values.
[0089]
As can be seen from the value indicating this probability, the denominator is extremely large compared to the numerator, and therefore there is an advantage that a detailed launch ball winning probability can be obtained by changing the denominator. Therefore, as for the probability of hitting the shot ball, all the probabilities corresponding to the set values change the denominator. As described above, the difference between the low probability and the high probability is caused by setting the random number generation region to be wide or narrow.
[0090]
Furthermore, the normal symbol winning probability shown in the table of FIG. 12 is used in the determination of ST21 in the flowchart of the game processing operation of FIG. 7, and when the winning condition counter is greater than or equal to a predetermined value, a high probability (250/256) is selected. (ST22) When the winning condition counter is less than the predetermined value, the low probability (25/256) is selected (ST23).
[0091]
The normal symbol variation time shown in the table of FIG. 13 is used in the determination of ST21 in the flowchart of FIG. 7, as shown in the flowchart of FIG. Is selected (ST22 '), and when the winning condition counter is less than a predetermined value, a long time (10 seconds) is selected (ST23').
[0092]
In the tables of FIGS. 12 and 13, data of the special symbol change time of the special symbol display device 3 is also set. The special symbol variation time is set so that the variation time (34, 32, 30, 28, 26, 24 seconds) becomes shorter as the probability per shot ball becomes higher. That is, when the winning probability of the launch ball increases, the count value tends to exceed a certain value, and the winning frequency of the game ball at the start winning opening increases, so the number of special symbol fluctuations increases, and the symbol fluctuation time increases. If it is uniform, the symbol variation time per gaming time will increase, but in this way, the higher the winning probability, the shorter the symbol variation time, so as not to increase the symbol variation time per gaming time, It is possible to prevent the player from giving a guide for selecting the game stand.
[0093]
In the winning probability table as described above, probability data used by the setting switching device 60 shown in FIG. 15 is set. This setting is performed as the first random number winning probability setting process in ST11 described above. The procedure is shown in FIG.
[0094]
First, when the gaming machine is powered on (ST201), the microcomputer 50 checks whether the setting key is in the “ON” state (ST202). This check determines whether or not the correct setting key is inserted into the key hole of the setting switching device 60, and a detailed determination method and structure will be described later (FIG. 15).
[0095]
If the inserted setting key is correct, a signal is sent to the microcomputer 50 by rotating the setting key in a predetermined direction, and the winning probability table provided in the ROM 50C is switched ( ST203).
[0096]
When the winning probability is switched to the desired one, the winning probability table is fixed by pulling out the setting key (ST204). If the winning probability table currently set after the power is turned on is desired, an operation such as inserting a setting key into the key hole is unnecessary. As described above, a desired winning probability table is set.
[0097]
FIG. 15 shows details of the setting keys and the setting switching device necessary for the setting process. The key portion of the setting key 61 is formed in a shape including convex portions 61a and 61c and a concave portion 61b. On the other hand, in the setting switching device 60, when the key part is inserted from the key hole 65, setting key switches 62a, 62b, and 62c for detecting the shapes at positions corresponding to the concave and convex parts 61a, 61b, and 61c, respectively. A setting key switch unit 62 having three units is installed.
[0098]
Therefore, when the setting key 61 is inserted into the keyhole 65, when the setting key switch unit 62 recognizes that the shape is convex or concave, it is determined that the setting key is ON (" YES ”). In other words, it is configured to determine whether or not the inserted key is a legitimate one based on a predetermined combination of ON / OFF signals of the setting key switch unit 62.
[0099]
In this way, when the combination of the output signals of the setting key switch unit 62 is correct, the key inserted in the setting switching device 60 is correct and the winning probability table is set to a desired probability. can do. This mechanism is the setting key switch unit A setting changeover switch 64, which is a rotary switch, is provided at the back of 62, and the rotary shaft of the setting changeover switch 64 is engaged with the portion where the inside of the key tip of the setting key 61 is splined to switch the switch. ing.
[0100]
By selecting and setting one of the setting values 1 to 6 in the winning probability table by setting key operation, the special symbol variation time corresponding to the probability per shot ball is set by one key operation. Aim can be achieved.
[0101]
The higher the probability per shot ball, the shorter the special symbol variation time, so that even if the winning rate at the start prize opening 4 increases and the number of special symbol variations increases, the special symbol variation time per game time increases. The object of the present invention of adjusting the symbol variation time to be almost constant can be achieved.
[0102]
The second and third embodiments in which the variation time of the special symbol per game time is adjusted will be sequentially described.
[0103]
In the second embodiment, the microcomputer 50 in the block diagram of FIG. 5 is provided with a holding ball counter which is a second counting means for counting game balls won in the start winning opening 4 during the special symbol variation. The reserved ball counter adds up to an upper limit value of 5. Holding ball A set value of the special symbol variation time corresponding to the count values 1 to 5 of the counter is stored in the ROM 50C. In the special symbol variation time table set corresponding to the count value of the reserved ball counter shown in FIG. 16, the special symbol variation time becomes shorter as the count value becomes larger.
[0104]
The special symbol variation process will be described with reference to the flowcharts of FIGS. 17 and 18.
[0105]
In ST28 of the game processing procedure of FIG. 7, if there is a game ball winning at the start winning opening 4, it is determined whether or not the count value of the holding ball counter is an upper limit value (for example, 5) (ST301). If “NO” is determined, the third random number is extracted (ST302) and the reserved ball counter is incremented by 1 (+1) (ST303). If “YES” is determined in ST301, the third random number extraction (ST302) and the reserve ball counter addition (ST303) are not performed. Therefore, the count value of the holding ball counter does not exceed 5.
[0106]
Next, whether the special symbol is changing (ST304) T It is determined whether or not the coin is being opened (ST305) and the reserved ball counter is 0 (ST306). If all are "NO", the variation of the special symbol is started (ST307). If any of them is “YES”, these determinations are repeated, and if there is a winning at the start winning opening 4 during that time, the count value of the holding ball counter increases sequentially, but when the count value becomes 5, The above addition is in line Nawa At the same time, random numbers are not extracted.
[0107]
When the change of the special symbol is started, it is determined whether or not the value of the reserved ball counter is “1” (ST308). If the value of the reserved ball counter is “1” and the above determination is “YES”, the symbol variation time (30 seconds) corresponding to the counter value “1” is selected (ST309). If the determination in ST308 is “NO” (the value of the holding ball counter is “2” or more), it is determined whether or not the holding ball counter is “2” (ST310). The symbol variation time (15 seconds) corresponding to the counter value “2” is selected (ST311). If the determination in ST310 is “NO” (the value of the holding ball counter is “3” or more), it is determined whether or not the holding ball counter is “3” (ST312). The symbol variation time (10 seconds) corresponding to the counter value “3” is selected (ST313).
[0108]
If the determination in ST312 is “NO” (the value of the holding ball counter is “4” or more), it is determined whether the holding ball counter is “4” (ST314). Then, the symbol variation time (7.5 seconds) corresponding to the counter value “4” is selected (ST315).
[0109]
If the determination in ST314 is “NO” (the value of the holding ball counter is “5”), the symbol variation time (6 seconds) corresponding to the counter value “5” is selected (ST315).
[0110]
30 seconds if the value of the holding ball counter is “1”, 15 seconds if “2”, 10 seconds if “3”, 7.5 seconds if “4”, and “5” The pattern fluctuates for 6 seconds each. As described above, the value of the holding ball counter is the number of times that the special symbol including that time can be changed. Therefore, when such a state always continues, the change time of the special symbol is 30 seconds × 1 respectively. 15 seconds × 2, 10 seconds × 3, 7.5 seconds × 4, 6 seconds × 5, which are almost the same.
[0111]
During the symbol variation, the winning determination of the random number extracted in ST302 is performed (ST317). When it is determined to be “YES” (winning), the winning symbol display is stopped (ST318), the attacker is opened (ST319), When it is determined as “NO” (disengagement), the discontinuation symbol display is stopped (ST320), the reserved ball counter is decremented by 1 (ST321), and the special symbol fluctuation process is terminated.
[0112]
In the above embodiment, the higher the probability of winning the shot ball winning determination, the higher the possibility of winning the game ball at the start winning opening, and the higher the number of game balls won at the starting winning opening, the count value of the holding ball counter Since the change time of the special symbol is adjusted to be shorter as the value of the holding ball counter is higher, the change time of the special symbol per game time is independent of the winning frequency of the game ball at the start winning opening. It can be kept almost constant.
[0113]
Next, a third embodiment will be described.
[0114]
A game ball is won at the start winning opening, and the special symbol starts to change. A timing means is provided to start timing when a game ball wins at the starting winning opening during the special symbol change. By subtracting the time measured by the timekeeping means from the symbol variation time, the symbol variation time per game time is almost the same even if a large number of game balls are won at the start winning opening. Can be adjusted.
[0115]
In this embodiment, the CPU 50 </ b> A in the block diagram of FIG. 5 executes a timer operation that starts timing in response to a signal from the start winning port switch 31. The CPU 50A starts the timer operation every time there is a signal from the start winning a prize opening switch 31, and is reset when measuring a predetermined time (for example, 30 seconds). In addition, even if a signal more than the number of times set as the upper limit (for example, 5 times) is generated, no further timer operation is performed, and a third random number is generated and a special number is awarded for winnings exceeding the upper limit number of times. It includes a timer counter for not changing symbols. As the timer counter, the reserved ball counter of the second embodiment may be used.
[0116]
19 and 20 are flowcharts showing the procedure of the special symbol variation process accompanied by the operation of the timer.
[0117]
In ST28 of the game processing procedure of FIG. 7, if there is a game ball winning in the start winning opening 4, it is determined whether or not the count value of the timer counter is an upper limit value (for example, 5) (ST401). If “NO” is determined, the timer counter is incremented by 1 (ST 402 ), The timer starts counting (ST403), and a third random number is extracted (ST404). If “YES” is determined in ST401, the timer counter addition (ST402), the timer timing start (ST403), and the third random number extraction (ST404) are not performed. Therefore, the count value of the timer counter does not exceed the upper limit value 5.
[0118]
Next, whether the special symbol is changing (ST405) T It is determined whether the power is being opened (ST406) or the timer counter is 0 (ST407). If all are "NO", the variation of the special symbol is started (ST408). If any of them is “YES”, these determinations are repeated. During this time, the timer time increases, and if there is a winning at the start winning port 4, the count value of the timer counter increases sequentially, but when the count value reaches 5, no further addition is performed. Nawa At the same time, the timer is not started.
[0119]
When the change of the special symbol is started, the special symbol is changed by a time obtained by subtracting the time measured by the timer from a predetermined time (for example, 30 seconds) (ST409).
[0120]
During symbol variation, the winning determination of the random number extracted in ST404 is performed (ST410). When it is determined as “YES” (winning), the winning symbol display is stopped (ST411), and the attacker is opened (ST412). When it is determined as “NO” (displacement), the discontinuation symbol display is stopped (ST413), the timer counter is decremented by 1 (ST414), and the special symbol variation process ends.
[0121]
FIG. 21 shows the variation time of the special symbol in the third embodiment. The top row shows an example of timing when the start winning port switch 31 that outputs a signal when a game ball wins the starting winning port 4 is turned on, and the lower row shows the start winning port switch 31 turned on. The output state of the timer that measures the symbol variation time set in the microcomputer program according to the timings a to f is shown, and the bottom row indicates the variation / stop time variation of the special symbol. .
[0122]
First, when a winning ball is generated at timing a, the CPU of the microcomputer 50 as the symbol variation control means starts a first timer in response to the detection signal. This timer measures a set time (for example, 30 seconds) and is then reset. With the start of the first timer, the variation of the special symbol is started, the operation of the first timer is stopped after the set time shown in (a), and the variation of the symbol is also stopped. This is a single symbol variation performed in response to a winning ball. When a new winning ball is generated during the symbol variation, the symbol variation time changes as follows.
[0123]
That is, if four winning balls are generated at timings b, c, d, and e during the symbol change corresponding to the first winning ball (within the time counted by the first timer), the second to second at the timings. 5 Timers start operating sequentially.
[0124]
Thereafter, when the first timer counts the set time (30 seconds), the second timer is in operation, that is, the symbol variation corresponding to the second winning ball generated at timing b has not ended. Is once stopped and then started again. Then, the symbol variation stops when the second timer times the set time. However, if the third timer is in operation, the symbol variation is resumed. Thereafter, the symbol variation is similarly performed up to the fifth timer. Therefore, when a winning ball is generated while the symbol is changing, as shown in the lowermost part of FIG. 20, the symbol is displayed according to the length of the elapsed time from the generation of the previous winning ball to the generation of the next winning ball. The fluctuation time also changes.
[0125]
When a winning ball is generated after the end of symbol variation as indicated by timing f, the symbol variation is executed at a predetermined set time in the same manner as the specific winning ball generated at the first timing a.
[0126]
In the above embodiment, the higher the probability of winning the shot ball winning determination, the higher the possibility of winning the game ball at the starting winning opening, and the more winning the game ball at the starting winning opening, the more the winning ball corresponds to the winning ball. By using the delay in the start of the special symbol to be delayed, the delay time is counted, the special symbol corresponding to the winning ball is varied by subtracting the time measured from the predetermined time, and the special symbol variation time The variation time of the special symbol per game time can be kept almost constant even if a lot of game balls are won at the start winning opening.
[0127]
Although the illustrated pachinko gaming machine has been described above, the present invention is not limited to pachinko gaming machines of various configurations, and various game machines that control the gaming state based on a predetermined probability. The same applies to gaming machines.
[Brief description of the drawings]
FIG. 1 is a front view showing a game board surface of a pachinko game machine as an example of a ball game machine according to the present invention.
FIG. 2 is a perspective view showing details of a variable winning ball apparatus.
FIG. 3 is a perspective view showing details of a normal symbol operating gate.
FIG. 4 is a simplified diagram showing a relationship between installation positions of a game ball launching device and a detection switch.
FIG. 5 is a block diagram showing a configuration of a control device for a pachinko gaming machine.
FIG. 6 is a flowchart showing a game processing procedure by the control device.
FIG. 7 is a flowchart showing a game processing procedure by the control device.
FIG. 8 is a flowchart showing a game processing procedure by the control device.
FIG. 9 is a flowchart showing a game processing procedure by the control device.
FIG. 10 is a flowchart showing random number update processing.
FIG. 11 is a graph showing a transition of selection of a normal winning probability (or normal symbol variation time) corresponding to a winning condition counter value.
FIG. 12 is a conceptual diagram of a probability per shot ball and a variation time table of special symbols.
FIG. 13 is a conceptual diagram of a probability per shot ball and a special symbol variation time table.
FIG. 14 is a flowchart showing winning probability setting processing;
FIG. 15 is a perspective view showing details of the setting switching device.
FIG. 16 is a conceptual diagram of a special symbol variation time table corresponding to the count value of the reserved ball counter.
FIG. 17 is a flowchart showing a special symbol variation processing procedure.
FIG. 18 is a flowchart showing a special symbol variation processing procedure.
FIG. 19 is a flowchart showing a special symbol variation processing procedure;
FIG. 20 is a flowchart showing a special symbol variation processing procedure.
FIG. 21 is a time chart showing the operation timing of the timer and the special symbol display device corresponding to the generation of a winning ball at the start winning opening.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Game board, 2 ... Normal symbol display device, 3 ... Special symbol display device, 4 ... Start prize opening, 5 ... Large prize opening, 6 ... Normal symbol operation gate, 7 ... Normal symbol operation switch, 9 ... Variable Winning ball device, 20 ... game ball launching device, 21 ... launching ball detection Switch, 22 ... Return ball detection 30 ... Start winning port solenoid, 31 ... Start winning port solenoid, 32 ... Large winning port solenoid, 50 ... Microcomputer, 53 ... Random number generator, 60 ... Setting switching device, 61 ... Setting key, 62 ... Setting key switch unit 64 ... Setting changeover switch.

Claims (2)

A special symbol display means for variably displaying a plurality of special symbols;
When the game ball wins, a start winning opening where the symbol change of the special symbol display means is started,
A launch ball winning determination means for determining a prize every time a game ball is launched into the game area;
Counting means for performing an addition operation each time the firing ball winning determination means determines that a winning is achieved, and performing a subtraction operation each time a game ball is won in the starting winning opening,
Selection for selecting one of a plurality of winning probabilities in the winning determination set in advance so that the winning frequency of the game ball to the start winning opening increases when the count value by the counting means is a certain value or more Means,
Each time a game ball wins at the start winning opening, a waiting time until starting a variable display corresponding to the win from the time of the win, a time measuring means for starting time counting for each winning game ball,
Corresponding to the winning probability selected by the selecting means, the waiting time from a preset time so that the symbol changing time of the special symbol display means is short when the winning probability is high and long when the winning probability is low. A bullet ball game machine comprising control means for performing control to obtain a time obtained by subtracting. 2. The ball game machine according to claim 1 , wherein a symbol variation time of the special symbol display means is selected simultaneously with selection of a winning probability in the winning determination.

Images