JP2002113179A - Pachinko machine and expected value changing method for ready-to-win picture pattern therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the fun of a PACHINKO machine by varying the expected value of great success for each ready-to-win picture pattern and announcing that value. SOLUTION: When a power source circuit 306 is turned on, in the case of great success, when the number of balls entering a starting hole reaches a prescribed numerical value or when a reset circuit 305 is reset, information on the expected value of great success occurrence for each of ready-to-win picture patterns is displayed on a special picture pattern display device 202. Thus, a player can estimate the expected value for each of ready-to-win picture patterns during play and the player can enjoy the fun of the machine.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pachinko machine and a method of changing an expected value of a reach symbol thereof.

[0002]

2. Description of the Related Art Some pachinko machines are provided with a special symbol display device in a game board which can variably display a symbol composed of a plurality of figures, figures and the like. As a special symbol display device, a liquid crystal display device (hereinafter, LCD (Liquid Crystal Disp.)
lay)) and variable display devices such as CRT (Cathode Ray Tube) displays, 7 segment LED (light emitting dio)
de), a device having a dot matrix display device, a drum, and others.

[0003] A pachinko machine equipped with such a special symbol display device operates, for example, as follows. That is, in response to the timing at which the ball fired by the player wins the starting winning opening, a predetermined probability, that is, the number of times the winning winning opening has been won, the probability of occurrence of a jackpot described later, A lottery is performed to determine whether or not to generate a special game state (so-called big hit) in which the game is developed in an advantageous manner for the player, and when the big hit is determined, the game shifts to the special game state. At the same time as determining the jackpot, the next jackpot occurrence probability is determined to be a normal probability or to shift to a probability that is advantageous to the player (that is, to change the probability (probable change)) by lottery. Then, on the special symbol display device, a predetermined symbol indicating whether it is a jackpot with a normal probability or a jackpot with a probability change is stopped and displayed, and thereafter, a special winning opening is set to, for example, one at a time.
It is released up to 16 times on condition that no ball is thrown in or 30 seconds elapse, so that a game development advantageous to the player can be realized.

[0004] By winning a winning opening, symbols are displayed on the special symbol display device in a fluctuating manner. For example, a combination of a plurality of symbols is "7", "7", "7".
As in the case of (1), when the symbols stop in a predetermined combination (in this case, a set of the same number) on a predetermined line (effective line) determined in the game, a big hit is displayed. Also, for example, in the symbol variation display, the combination state of the number symbols is a state where the left symbol of the left reel and the middle symbol of the middle reel are stopped at the same number on the activated line, and the right symbol of the right reel. Is called a reach or a reach state, and thereafter, a jackpot confirmation display or a loss confirmation display (that is, three numbers on the active line are not the same) is displayed. In this way, the reach occurs not only at the jackpot but also at the off.

[0005]

However, the appearance probability of each reach symbol at the time of the reach is constant. Therefore, even if the reach symbol appearing at the time of the reach is changed for each reach, the player may not generate a big hit. There is a great possibility that expectations are weakened. In particular, the longer the game is played on the same stand, the stronger the tendency.

Accordingly, the present invention has been proposed in consideration of the above points, and makes the expected value of the jackpot occurrence different between the respective reach symbols, and changes the expected value at an appropriate timing. This allows the player to infer the expected value for each reach symbol during the game,
Therefore, an object of the present invention is to provide a pachinko machine and a method of changing the expected value of a reach symbol of the pachinko machine, which can attract a player's interest and can keep the player from playing even during a long game. .

[0007]

In order to achieve the above object, an invention according to claim 1 comprises an expectation value storage means for storing an expectation value of occurrence of a jackpot of each reach symbol, at power-on, at the time of jackpot, The expected value of occurrence of a big hit of at least one reach symbol in the expected value storage means when the number of balls entering the starting port reaches a predetermined numerical value or when the main control unit is reset by the reset circuit. And changing means for changing

According to a second aspect of the present invention, in the first aspect, the control means for displaying, on a display means, information on an expected value of occurrence of the jackpot of the reach symbol based on the expected value in the expected value storage means. It is characterized by having.

According to a third aspect of the present invention, in the second aspect, the timing for displaying the expected value of occurrence of the jackpot of the reach symbol on the display means by the control means is the timing for changing the expected value by the changing means. It is characterized by being based on.

According to a fourth aspect of the present invention, an expected value of occurrence of a jackpot of each reach symbol is stored, and when a power-on, a jackpot, the number of balls entering the starting port reaches a predetermined numerical value, and a reset circuit is provided. At any one of resets of the main control unit, the stored expected value of the jackpot occurrence of at least one reach symbol is changed.

According to a fifth aspect of the present invention, in the fourth aspect, based on the stored expected value, information relating to the expected value of occurrence of the jackpot of the reach symbol is displayed on a display means.

According to a sixth aspect of the present invention, in the fifth aspect, the timing of displaying the expected value of the occurrence of the jackpot of the reach symbol on the display means is based on the timing of changing the expected value.

[0013]

Embodiments of the present invention will be described below in detail with reference to the drawings. In each of the drawings, similar portions are denoted by the same reference numerals, and will not be described repeatedly. The mechanical structure of a pachinko machine is described in, for example,
Since the configuration can be the same as that of the conventional example as disclosed in Japanese Patent Application Laid-Open No. 19252 and the like, the description is limited to the components related to the present invention and the supplementary portions thereof.

FIG. 1 shows an example of a front view of a game board of a pachinko machine.

In FIG. 1, a pachinko machine according to the present embodiment is a game board 20 on which an accessory of the pachinko machine is mounted on a board.
1. Special symbol display device 202, starting winning opening 203, left ordinary symbol display device operating gate 204, right ordinary symbol display device operating gate 205, ordinary symbol display device 206, ordinary electric accessory 207, variable winning ball device 208 .

The special symbol display device 202 displays an image (symbol) corresponding to a game state in response to a control signal from a main control unit described later. Here, a special symbol (hereinafter, simply referred to as a symbol) composed of three reels in a parallel display in which ten numbers 0 to 9 are rotated and displayed is variably displayed, and other images are displayed.

When a ball hit by a player wins, a start winning port 203 is provided inside a special symbol start switch 3.
When a trigger of 01 (described later) is generated, a winning is detected, and a trigger of a symbol change of the special symbol display device 202 is given.

When the ball struck by the player passes, the left-side normal symbol display device operation gate 204 and the right-side normal symbol display device operation gate 205 are activated by a trigger of an internal normal symbol operation switch 302 (to be described later). An opportunity to change the ordinary symbol of the display device 206 is given.

The ordinary symbol display device 206 variably displays ordinary symbols displayed by a 7-segment LED or the like.

The ordinary electric accessory 207 is opened when the ordinary symbol display device 206 stops displaying a specific ordinary symbol,
Assist in winning in the starting winning opening 203.

The variable prize ball device 208 is a large prize port on the front of the variable prize ball device 208 when the stop symbol of the special symbol display device 202 is a predetermined combination of specific symbols, that is, when a big hit occurs. Release operation.
The variable winning prize ball device 208 is provided with a special winning opening switch and a specific area (ie, so-called V zone) passage detection switch for determining the opening of the next special winning opening at the time of a big hit. The number of balls that have entered the special winning opening is counted based on the trigger generated by the entry of the ball through the switch.

FIG. 2 shows a control circuit configuration of the pachinko machine.

The main control unit 308 is a CPU for controlling the entire pachinko machine. The main control unit 308 uses a one-chip CPU having a built-in ROM 309 and RAM 310 or a CPU having the ROM 309 and RAM 310 externally connected to a bus. Good. The ROM 309 stores a program for controlling the pachinko machine for the main control unit 308. RAM
Reference numeral 310 stores the expected value of each reach symbol at the time of reach, that is, the reliability (probability) of the occurrence of a big hit at the time of displaying the reach symbol, under the control of the main control unit 308, the trigger from the special symbol start switch. When a reach is generated in response, a reach symbol to be displayed can be determined with reference to the stored expected value of each symbol at the time of the reach. This expected value can be different between each reach symbol. In addition, the RAM 310 temporarily stores input / output data for the main control unit 308, data for arithmetic processing, various counters such as a random number counter related to the game, and the like.

The main control unit 308 receives triggers from the special symbol start switch 301, the ordinary symbol activation switch 302, the special winning opening switch 303, and the specific area passage detection switch 304 via the input port 307.
09, a control signal for controlling each section described later is generated in accordance with a control program in 09, and the generated control signal is output via the output port 311 to the special symbol display device 202, the ordinary symbol display device 206, the special winning opening operation solenoid. 31
2. It is supplied to the ordinary electric accessory actuation solenoid 313, the movable piece actuation solenoid 318, the lamp display device 314, the sound effect generator 315, and the prize ball payout device 316.

The reset circuit 305 sets the main control unit 308 in an initial state. The power supply circuit 306 supplies power to the entire circuit of FIG.

The special symbol start switch 301 generates a trigger when the ball hit by the player and hits the start winning opening 203 passes this switch, detects a winning, and changes the symbol of the special symbol display device 202. Give an opportunity.

The normal symbol operation switch 302 is driven out by the player to activate the left ordinary symbol display device operation gate 20.
The ball which has passed through the switch 4 and the right-side normal symbol display device operation gate 205 generates a trigger when passing through this switch, and gives a trigger to change the ordinary symbol of the ordinary symbol display device 206.

The special winning opening switch 303 detects a winning of a ball into the variable winning sphere device 208 when a big hit occurs.

The ordinary electric accessory operating solenoid 313 opens the ordinary electric accessory 207 when the ordinary symbol display device 206 stops and displays a specific ordinary symbol.

The movable piece operating solenoid 318 drives a movable piece (shutter) for opening and closing a specific area in the special winning opening. When the special winning opening is opened during a big hit, the specific area (V zone) is opened. In order to allow only one ball to enter the movable area, based on a control signal from the main control unit 308 in response to a trigger from the specific area passage detection switch 304 which detects that the specific area has entered the ball. Close.

The lamp display device 314 is a display device for lamps related to the game, and selectively turns on / off a plurality of lamps according to an instruction from the main control unit 308.

The sound effect generator 315 generates sound related to the game. The prize ball payout device 316 pays out a prize ball when a special symbol start switch 301, a special winning opening switch 303, or another winning opening switch detects a winning.

When the ball launching device 317 detects the ball launching operation of the player with the pachinko machine handle, the ball launching device 317 moves the ball to the game board 201.
Fire to

The main control unit 308 performs a special winning opening operation solenoid 312 so as to perform a predetermined number of opening operations of the special winning opening on the front of the variable winning sphere device 208 when a big hit occurs.
Control. In addition, one opening operation is completed when a predetermined time (for example, 30 seconds) elapses from the start of opening or when a predetermined number of balls enter the special winning opening obtained based on a trigger from the special winning opening switch. Controls opening and closing of the special winning opening.

The main control unit 308 is provided, for example, when the power supply circuit 306 is turned on, at the time of a big hit, when the number of balls entering the starting port reaches a predetermined value (for example, 500 or 1000), or when the reset circuit When resetting 305, R
The expected jackpot value of at least one reach symbol in the AM 310 can be changed. For example, an example of the expected value before the change is shown in Table A below, and an example of the expected value after the change is shown in Table B below.

[0036]

[Table 1]

[0037]

[Table 2]

Further, the main control unit 308 displays information on the expected value of the occurrence of the jackpot of each reach symbol on the special symbol display device 202 in the following manner.

That is, for example, as shown in FIG. 3, the expected value of each reach symbol can be displayed on the special symbol display device 202 as it is.

For example, as shown in FIG. 4, the special symbol display device 20 is arranged in the order of the symbol having the higher expected value from the symbol having the lower expected value.
2 can be displayed in a ranking.

Furthermore, not all symbols but only some symbols can be displayed. Further, instead of displaying all symbols at once as shown in FIGS. 3 and 4, they can be displayed sequentially.

The timing of displaying the information on these expected values on the special symbol display device 202 is, for example, when the power circuit 306 is turned on, when a big hit occurs, or when the number of balls entering the starting port reaches a predetermined value. Alternatively, a response can be made at the time of reset of the reset circuit 305 or the like, and as a display mode, only information relating to the expected value of the jackpot occurrence of each reach symbol before the change of the jackpot expected value of at least one reach symbol is displayed. Or display only the information about the expected value of jackpot occurrence of each reach symbol after the change, or display the information about the expected value of jackpot occurrence of each reach symbol before and after the change sequentially it can.

[0043]

As described above, according to the present invention,
By changing the expected value of the jackpot occurrence between the respective reach symbols and changing the expected value at an appropriate timing, the player can infer the expected value for each of the reach symbols during the game. Therefore, it is possible to provide a pachinko machine having extremely high playability and a method of changing an expected value of a reach symbol of the pachinko machine, which can attract a player's interest and can keep a player from playing a game for a long time. .

[Brief description of the drawings]

FIG. 1 is a schematic view showing a front view of a game board of a pachinko machine according to an embodiment of the present invention.

FIG. 2 is a block diagram illustrating a control circuit configuration of the pachinko machine according to the embodiment of the present invention.

FIG. 3 is a diagram showing a display example of information on expected values on a special symbol display device according to the embodiment of the present invention.

FIG. 4 is a diagram showing another display example of information on expected values on the special symbol display device according to the embodiment of the present invention.

[Explanation of symbols]

 201 game board 202 special symbol display device 203 starting winning opening 204 variable winning ball device 206 ordinary symbol display device 301 special symbol starting switch 302 ordinary symbol operating switch 303 large winning opening switch 304 specific area passage detection switch 305 reset circuit 306 power supply circuit 307 Input port 308 Main control unit 309 ROM 310 RAM 311 Output port 312 Big winning opening operating solenoid 313 Normal electric accessory operating solenoid 314 Lamp display 315 Sound effect generator 316 Award ball payout device 317 Ball launching device 318 Movable single-acting solenoid

Claims (6)

[Claims] 1. An expected value storage means for storing an expected value of occurrence of a jackpot of each reach symbol, at the time of power-on, at the time of a jackpot, when the number of balls in the starting port reaches a predetermined value, and by a reset circuit. A pachinko machine comprising: a changing means for changing an expected value of occurrence of a big hit of at least one reach symbol in the expected value storage means at any time of resetting of the main control unit. 2. The apparatus according to claim 1, further comprising control means for displaying, on a display means, information on an expected value of the occurrence of the jackpot of the reach symbol based on the expected value in the expected value storage means. Pachinko machine. 3. The timing according to claim 2, wherein the timing at which the control means displays the expected value of occurrence of the jackpot of the reach symbol on the display means is based on the timing at which the changing means changes the expected value. Pachinko machine. 4. An expected value of occurrence of a jackpot of each reach symbol is stored, and when the power is turned on, at the time of a jackpot, when the number of balls entering the starting port reaches a predetermined value, and a reset circuit resets the main control unit. And changing the stored expected value of the jackpot occurrence of the at least one reach symbol at any one of the times. 5. The expectation of a reach symbol of a pachinko machine according to claim 4, wherein information relating to an expectation value of the jackpot occurrence of the reach symbol is displayed on a display means based on the stored expected value. How to change the value. 6. The reach symbol of a pachinko machine according to claim 5, wherein the timing at which the expected value of the jackpot occurrence of the reach symbol is displayed on the display means is based on the timing of changing the expected value. How to change expected value.