JPS6335263B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a pachinko machine that automatically controls the winning rate of batted balls so that it approaches a preset winning rate.

<Conventional technology> Generally, pachinko machines have multiple obstacle nails on the game board.
It is equipped with a winning chuck car, an outro, etc. If a ball fired by a player lands in the winning chuck car, it is safe, a predetermined number of balls are brought to the player as a prize ball, and if it hits the outro, it is out, and the game is played. It will be a loss for the person. Therefore, for example, satisfying the following formula: K = Number of prize balls/Number of outs x 100 (%) means the large or small winning rate of the pachinko machine, and it is necessary for pachinko parlors to set this winning rate K for management purposes. How to set it up is an extremely important issue. This winning rate K changes depending on whether the ball is an out ball or a safe ball, and is calculated based on the number of balls that result in a loss for the player and the number of balls that result in a profit. This depends on adjusting the spacing between the obstacle nails, etc., but how to set these usually requires special skills and experience, which is extremely difficult and requires a large number of human resources.

As a conventional pachinko machine that attempts to solve the above-mentioned problems, the applicant proposed the
There is one described in Publication No. 141736. This pachinko machine calculates the ratio K between the number of safes and the number of outs, compares this K with the setting value set on the setting device, and based on the comparison result, tilts the pachinko machine body in the front and back direction, A winning rate control device is installed that changes the position of the center of gravity by making obstacle nails appear and disappear above the chuck car installed on the board, or by moving weights up and down on the back side of the main body, thereby directly controlling the winning rate. It is the composition.

<Problems to be Solved by the Invention> The above-mentioned conventional pachinko machines have been designed to adjust the center of gravity by tilting the main body of the pachinko machine in the front-back direction, by making obstacle nails appear above the player, or by moving the weights up and down. Since the structure of the winning rate control machine that changes the position of the winning rate control machine is complicated and large-scale, assembly work is troublesome, and these winning rate control machines have the drawback of being poor in practicality. In particular, conventional pachinko machines have the drawback that players easily learn that the winning rate is directly controlled. If the player discovers that the winning rate is controlled during business hours, the player will feel uncomfortable or suspicious, and the interest in the pachinko game will be significantly diminished.

<Means for Solving the Problems> The present invention has been proposed in view of the above, and includes a special prize opening provided with a detector for detecting winning batted balls on the game board surface, and a plurality of display parts, A variable display device that performs an auxiliary game in which a plurality of display sections display variable information, and can be converted into a first state in which it does not accept or is difficult to accept a batted ball and a second state in which it is easy to accept a batted ball by driving an electric drive source. In a pachinko machine equipped with a variable winning device, the frequency of displaying a specific display section from among the plurality of display sections of the variable display device is controlled and variably displayed based on the signal from the detector of the special winning hole. a central processing unit that causes an auxiliary game to be played and converts the variable winning device from a first state to a second state by operating an electric drive source of the variable winning device based on a specific display mode of a game result in the auxiliary game; In a pachinko game, the winning rate, which changes depending on whether the ball is an out ball or a safe ball, is calculated based on the number of balls that result in a loss for the player and the number of balls that result in a profit, during a game. As the winning rate, the state of occurrence of safe balls compared to out balls that occur in the process of pachinko gaming is calculated as the winning rate at that time under predetermined conditions, and this calculated value and the expected basic winning rate are set in advance. and a winning rate comparison control means for comparing the set position and sending an output based on the comparison result to the central processing unit.

<Function> In addition to calculating the winning rate in the gaming process,
This winning rate is compared with a set value, and based on the comparison result, the display frequency of the specific display part in the auxiliary game is controlled, so that the winning rate of the batted ball is brought closer to the preset value through the auxiliary game. Control indirectly.

<Example> Hereinafter, an example of the present invention will be described based on the drawings.

Figure 1 is a block diagram of the winning rate comparison control means in a pachinko machine. In the figure, 1 is a calculation unit built into a mini-computer, etc., which will be described later, and calculates the number of safe balls input as an electrical signal. Calculate the ratio K between the number of winning pitches and the number of out pitches, and compare this winning rate K with the setting value K 2 of the upper setting device 2 and the lower setting device ₃ set as the basic winning rate.
Compare with the setting value _K3 . Then, when the comparative winning rate K exceeds the set value _K2 of the upper setting device, a close signal _S2 is generated to cause the winning rate control section 4, which will be described later, to perform an operation to reduce the winning rate K.
When the winning rate K exceeds the set value _K3 of the lower setting device 3, an open signal _S1 is generated to cause the winning rate control section 4 to perform an operation to increase the winning rate K. Figure 2 shows the winning rate K based on these actions.
It is a characteristic diagram showing the state of change of K. As is clear from the diagram, the wider the range between the set values K ₂ and K ₃ , the more the winning rate K changes dynamically, allowing you to enjoy a dynamic game, and the smaller this range is. You can play games with little fluctuation in winnings.

FIG. 3 shows another embodiment of the winning rate comparison control means in a pachinko machine, and the same parts as in FIG. 1 are denoted by the same reference numerals. Reference numeral 5 denotes a storage unit, which functions to give a calculation command to the calculation unit 1 to perform calculation operations when a predetermined condition is satisfied, such as when the number of fired balls reaches a certain number n. 6 is a desired setting device for setting the basic winning rate.

According to such a configuration, when the number of shot balls reaches a certain number n, the calculation unit 1 calculates the comparative winning rate K.
is calculated, and when this winning rate K is larger than the set value _K4 of the desired setting device 6, a close signal _S2 is sent to the winning rate control section 4, and this winning rate K is set as the setting value K of the desired setting device 6. When it is smaller than ₄ , a close signal _S1 is sent to the winning rate control section 4. Thereby, the winning rate K during the game is controlled every time a predetermined condition is satisfied. FIG. 4 is a characteristic diagram showing how the winning rate K changes based on such an operation.

FIG. 5 shows another embodiment of the winning rate comparison control means in a pachinko machine, and the same parts as in FIG. 3 are denoted by the same reference numerals. Reference numeral 7 denotes a repeat calculation instruction device according to an arbitrary set time, which sends a signal to the storage section 5 at every set time t, and causes the calculation section 1 to perform a calculation operation at this time t.

According to such a method, the calculation unit 1 can be operated every fixed set time t, which is a predetermined condition, and the comparative winning rate K obtained by calculation is greater than the set value _K5 , which is the basic winning rate. When the time is small, the close signal S ₁ is sent out, and when it is small, the open signal S ₁ is sent out, and the winning rate K
can be controlled within a certain range. FIG. 6 is a characteristic diagram showing how the winning rate K changes based on such an operation.

Next, how the winning rate K is controlled based on the operation of the winning rate control section 4 will be explained using FIGS. 7 and 8.

In FIG. 7, 8 is a pachinko machine, and the pachinko machine 8 includes a special prize opening 9 and first to third slots.
A detector 13 that detects safe balls that have entered the variable prize winning device 10 and are collectively flowing down from the gutter 11 and sends out a safe signal, and a detector that detects out balls that have flowed into the out port 14 and sends out an out signal. 15
, a detector 16 that detects the batted ball that has entered the special winning hole 9 and sends out a detection signal, and a detector 16 that has a code such as a number on the surface and a light emitting element etc. inside, and is arranged in an annular shape as shown in the drawing. A variable display device 18 consisting of a disposed display section 17 is provided as an auxiliary game means.
The detection signals from the detector 13 and the detector 15 are supplied to the winning rate comparison control means, and the detection signal from the detector 16 is supplied to the central processing unit 12, which will be described later, and is used for an auxiliary game. In this case, the display sections 17 with the same suffix are lit at the same time, and in this embodiment, for example, when the display section ₁₇₁ is lit and a ball hits the special winning hole 9,
Variable prize winning device 1 commonly known as Chulip
0, the variable winning device 10 ₁ with the corresponding subscript is converted from the first state in which it does not accept or is difficult to accept the batted ball to the second state in which it is easy to accept the ball, and the display units 17 ₂ and 17 ₃ light up. Even when I'm
Each variable winning device 10 ₂ , 10 ₃ is converted to the second state, and furthermore, if a ball wins while the display unit 17 ₄ is lit, all variable winning devices 10 . . . are converted to the second state. Such an operation is achieved, for example, by the control circuit configuration shown in FIG. 8, in which numeral 12 is a central processing unit that drives and controls the variable display device 18 and converts and controls the variable prize winning device 10, and its storage section. Stores information for generating signals for driving the drive circuit 19 in a highly random order. The drive circuit 19 emits a signal to light up the display portions 17 of the variable display device 18 in a random order, and sends an output signal to the OR circuit 20. The output signal of the drive circuit 19 ₄ is supplied to the other input terminal of the all-OR circuit 20 . The output signal of the OR circuit 20 is supplied to an AND circuit 21, and the output signal of the AND circuit 21 is supplied to a switching element 23 connected to an electric drive source 22 such as a magnet, which is built in the variable prize winning device 10 and controls the conversion state. are supplied respectively. Note that the other input terminal of the AND circuit 21 is supplied with a signal from the detector 16 that generates the winning signal described above.

A switching circuit 24 is inserted in the front stage of the drive circuit 19, and the circuits 24 ₁ to 24 ₃ operate to transmit the signals from the central processing unit 12 to the drive circuits 19 ₁ to 1, respectively.
The signal sent to the drive circuit 9 ₃ is sent to the drive circuit 19 ₄ , and the circuit 24 ₄ sends the signal sent to the drive circuit 19 ₄ to the drive circuit 19 ₁ .

The winning rate control section 4 of the winning rate comparison control means is an open signal.
The switching circuit 24 ₁ operates based on S ₁ .
24 ₃ is operated based on the close signal S ₂ to operate the switching circuit 24 ₄ to perform a switching operation.

To explain the operation, when the central processing unit 12 sends out a pulse P at random timing as shown in FIG. 9 to the drive circuit 19 according to programming, the drive circuit 19 is activated by this pulse P. The display section 17 is turned on in a random order.

When a pachinko game is started and a batted ball flows into the special winning hole 9 while the display section 17 ₁ is lit due to the operation of the drive circuit 19 ₁ , the ball is sent from the drive circuit 19 ₁ to the AND circuit 21 ₁ via the OR circuit 20 ₁ . Since the signal and the signal from the detector 16 are sent, the AND circuit 21 ₁ sends out an output signal to turn on the switching element 23 ₁ , which excites the electric drive source 22 ₁ and activates the variable prize winning device 10. ₁ is converted into a second state in which it is easier to accept pachinko balls. Even if a pachinko ball flows into the special winning hole 9 while the display section 17 ₂ is on or the display section 17 ₃ is on, the corresponding variable winning devices 10 ₂ and 10 ₃ are converted.

Here, the display section ₁₇₄ lights up due to the operation of the drive circuit ₁₉₄ , and during this time, when a batted ball flows into the special winning hole 9, a signal from the drive circuit ₁₉₄ is sent to each AND circuit ₂₁₁ to ₂₁₃ to each OR circuit. 20 and also the signal from the detector 16, each AND circuit 21 sends a signal to the switching elements 23 ₁ to 23 ₃ , which causes the electrical drive sources 22 ₁ to 22 ₃ to be activated. When excited, all the variable prize winning devices 10 ₁ to 10 ₃ are converted.

When the open signal S ₁ is supplied to the winning rate control section 4 and the signal is sent to the switching circuits 24 ₁ to 24 ₃ to operate the switching circuits 24 ₁ to 24 ₃ , the drive circuit 19 is activated as shown by the broken line in FIG. Pulses P ₁ to _{P 3} to be sent to ₁ to 19 ₃ are driven by the drive circuit 1
9 ₄ and the lighting frequency of the display section 17 ₄ becomes higher, thereby increasing the profit brought to the player based on the winning batted ball, thereby increasing the winning rate K.

Note that increasing the lighting frequency of the display section 17 ₄ increases the total lighting time of the display section 17 ₄ within a single time period.

In addition, a close signal _S2 is supplied to the winning rate control unit 4,
When a signal is sent to the switching circuit ₂₄₄ and the switching circuit ₂₄₄ operates, the pulse _P4 that should be sent to the drive circuit ₁₉₄ is sent to the drive circuit ₁₉₁ , as shown by the broken line in FIG.
By lighting up the display section ₁₇₁ , that is, by reducing the lighting frequency of the display section ₁₇₄ , the profit brought to the player becomes smaller, and the winning rate can be reduced.

In this way, according to this embodiment, the display sections 17 are programmed to light up in a random order, and the benefit brought to the player when a ball hits the special winning hole 19 is determined by which display section 17. It changes depending on whether it is lit or not. Therefore, when the lighting state of the display section is controlled to set the winning rate K within a certain range, the quantity converted to the second state of the variable winning device 10 increases or decreases, and the prize balls are ejected to the player. The degree changes, and as a result, the winning rate of the batted ball can be brought closer to a preset value.

In addition, in the example, the winning rate K was explained as number of prize balls/number of outs x 100 (%), but the winning rate K can be calculated using other calculation formulas, such as number of winning balls/(number of outs + number of safes) x 100. It can also be expressed in (%), etc.

Further, although the variable display device described above has a plurality of display sections arranged in a ring, the variable display device of the present invention is not limited to this, and a display section can be selected from among the plurality of display sections. Any configuration may be used as long as the auxiliary game can be performed.

<Effects of the Invention> As explained above, according to the present invention, the calculated value of the winning rate calculated during the game is compared with the set value preset by the setting device as the comparative winning rate, and based on the comparison result, Since the winning rate is indirectly adjusted by controlling the display frequency of each display part of the variable display device,
It is possible to automatically bring the batted ball winning rate of the pachinko machine closer to a setting value set in advance by the setting device. Therefore, it is possible not only to eliminate the need for troublesome work that relies on the operator's intuition, such as adjusting obstacle nails, but also because it is difficult for the player to find out when adjusting the winning rate of the ball hit during the game. To allow a player to enjoy a game with peace of mind without making him feel uncomfortable or suspicious, and without spoiling the interest of a pachinko game.

Furthermore, since the present invention adjusts the winning rate of batted balls using only electrical control, there is no need to install mechanical components for adjusting the winning rate of batted balls during the assembly work of a pachinko machine, making it extremely practical. be.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention, and include FIG.
Figures 3 and 5 are block diagrams of the winning rate control means in a pachinko machine, Figures 2, 4, and 6 are characteristic diagrams showing changes in the winning rate K, and Figures 7 and 8 are A front view and a circuit diagram showing one embodiment of the winning rate control section, and FIG. 9 are waveform diagrams for explaining its operation. In the figure, 1 is a calculation unit of the winning rate comparison control means, 2 is an upper setter of the winning rate comparison control means, 3 is a lower setter of the winning rate comparison control means, and 4 is a winning rate control unit of the winning rate comparison control means. , 5 is a storage unit of the winning rate comparison control means, 6 is a desired setting device of the winning rate comparison control means, 8
1 is a pachinko machine, 9 is a special prize opening, 10 is a variable prize winning device, 13 is a detector for detecting safe balls, 15 is a detector for detecting out balls, 17 is a display section, 18
12 is a variable display device, and 12 is a central processing unit.

Claims (1)

[Claims] 1. A variable display for playing an auxiliary game in which the game board has a special winning hole equipped with a detector for detecting winning batted balls and a plurality of display sections, and the plurality of display sections variably display an auxiliary game. In a pachinko machine equipped with a variable prize winning device that can be converted into a first state in which it does not accept or cannot accept batted balls and a second state in which it is easy to accept batted balls by driving an electric drive source, the above-mentioned special An auxiliary game is performed in which the frequency of displaying a specific display section of a plurality of display sections of the variable display device is controlled and variably displayed based on the signal from the detector of the winning opening, and a specific display of the game result in this auxiliary game is performed. A central processing unit that converts the variable winning device from a first state to a second state by activating an electric drive source of the variable winning device based on the mode, and whether a ball hit is an out ball or a safe ball in a pachinko game. The winning rate calculated from the number of pitches that result in a loss and the number of balls that result in a profit for the player is calculated as the winning rate during the game, and is calculated as a safe ball against out balls that occur in the process of pachinko play. Calculate the occurrence state of the winning rate at that time under predetermined conditions, compare this calculated value with a preset setting as the expected basic winning rate, and output based on the comparison result. winning rate comparison control means for sending the winning rate comparison control means to the central processing unit, and the central processing unit receiving the output from the winning rate comparison control unit controls the display frequency of the specific display part in the auxiliary game of the variable display device, thereby causing the ball to be hit. A pachinko machine characterized in that the winning rate of the pachinko machine is indirectly controlled through an auxiliary game so that the winning rate approaches the set value.