JP3841335B2 - Slot machine and winning probability change method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a slot machine in which a part of a symbol drawn on a reel drum is displayed from a display window portion, and a prize is awarded when the symbol is arranged in a predetermined combination, and in particular, the number of games is preset. The present invention relates to a slot machine in which a special gaming state advantageous to a player occurs when no winning is made before the number of times is reached.
[0002]
[Prior art]
The slot machine is provided with a plurality of reel drums arranged with a plurality of types of symbols drawn at predetermined intervals on the outer peripheral surface, and each reel drum starts to rotate independently from each other by a predetermined start operation and a predetermined stop. When the reel drums are sequentially stopped by the operation, and the symbols of the reel drums at the time of the stop are displayed in a state where they are arranged in a predetermined combination, a winning is won and a large number of payout medals are paid out.
[0003]
In such a slot machine, the player expects a special bonus (RB) winning in which a large number of payout medals are paid out or a special winning that gives rise to the right of a big bonus (BB) game that can be awarded at a high rate. And playing games.
[0004]
[Problems to be solved by the invention]
However, these winnings must first be won by a random symbol lottery performed for each game, and the winning combination of special symbols must be won, but the probability of winning a special symbol that is a big win is set low. Therefore, even if you play for a long time, such a special prize may never occur, and depending on the game luck of the player, you can not taste the game taste according to the money drop, just money There were times when the game ended just by wasting money.
[0005]
In this way, first of all, a special symbol lottery will be won and the game will be displayed for the first time. However, if the game characteristics cannot be enjoyed according to the money drop, the player's fan psychology cannot be grasped, and there is a problem that the interest of the game is impaired.
[0006]
Therefore, the present invention does not impair the interest of the game by generating a game state that is advantageous to the player if the special symbol that is a big hit is not won before the predetermined number of games is exhausted. It is an object of the present invention to provide a slot machine.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a slot machine of the present invention according to claim 1 includes a plurality of reel drums rotated by operation of a start means, and performs random number lottery by a start signal of the start means, and the random number lottery In the slot machine which displays a winning combination by a combination of symbols appearing in the display window when the plurality of reel drums are sequentially stopped by a stop operation, the number of games is counted. And a game counter for setting the number of bottom games to be the bottom of the game, and if the number of games counted by the game counter does not win before reaching a preset number of games, the winning probability by the random number lottery is determined as the start A winning combination lottery table for storing a winning combination for a random number sampled by a start signal of means Game control means for controlling the game so that a special gaming state is generated by changing it for the probability, and the game control means stores the winning combination lottery table with the number of bottom games set by the game counter. When the game control is performed by changing to a high probability, and the count information of the number of games is reset when the slot machine body is turned on, the winning is performed based on the number of games less than the number of bottom games. The game control is performed by changing the role lottery table for high probability.
[0008]
Therefore, when a special symbol is not won before a certain number of games is exhausted, the game is controlled so that a special gaming state advantageous to the player is generated by increasing the winning probability by random number lottery. It will form the bottom of itself, and it will be possible for the player to enjoy fair game characteristics that are not affected by game luck.
[0009]
A slot machine according to a second aspect of the present invention is the slot machine according to the first aspect, wherein the game control means is in a special gaming state while the game control means controls the game so that the special gaming state is generated. It has a notification means for notifying.
[0010]
A slot machine according to a third aspect of the present invention is the slot machine according to the first or second aspect, wherein the game control means randomly determines the number of games less than the number of bottom games by lottery. It is characterized by.
The winning probability changing method of the present invention according to claim 4 comprises a plurality of reel drums that are rotated by the operation of the starting means, the random number lottery is performed by the start signal of the starting means, and the winning is determined according to the result of the random number lottery. In the winning probability changing method of the slot machine, wherein a winning game is displayed based on a combination of symbols appearing in the display window when the plurality of reel drums are stopped by a sequential stop operation while making a determination, A counting step for counting the number of games by a game counter for setting the number of times, and if the number of games counted in the counting step does not win before reaching a preset number of games, the winning probability by random number lottery is determined by the start means A winning combination lottery table that memorizes the winning combination for random numbers sampled by the start signal And a game control step for controlling the game so that a special gaming state is generated by changing the game number, and the game control step has a high probability that the winning combination lottery table is determined by the number of bottom games set by the game counter. If the game count information is reset when the slot machine body is turned on, the winning combination lottery is performed based on the number of games less than the bottom game count. The game control is performed by changing the table for high probability.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of a slot machine according to the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing an appearance of a slot machine 1 according to the present invention. At the lower center of the front panel 2, a medal slot 3, a start lever 4 for starting games, and stop buttons 5L, 5C, 5R are provided. Three reel drums 6L, 6C, and 6R, left, middle, and right, are arranged inside the center of the front panel 2, and various designs are drawn on the circumferential surface. By operating the start lever 4, the three reel drums 6L, 6C, 6R start to rotate, and the rotation is sequentially stopped by turning on the stop buttons 5L, 5C, 5R.
[0012]
At this time, for example, among the symbols drawn on the three reel drums 6L, 6C, and 6R, if the same specific symbols are aligned in five lines that are horizontally aligned in the upper, middle, and lower rows, or diagonally aligned on the diagonal, In addition, the number of medals corresponding to each prize is paid out from a tray 7 provided at the lower part of the front panel 2.
[0013]
A liquid crystal display 8 for assisting game contents and displaying various effects and a special game state notification means 24 to be described later are installed on the upper portion of the front panel 2, and an effect lamp that flashes at the time of a big hit at the top of the panel 2 Class 9 is installed.
[0014]
FIG. 2 is a block diagram showing an electrical configuration of the slot machine 1. The start lever 4 is connected to a system controller 10 comprising a CPU, ROM, and RAM for controlling the slot machine 1 via a start signal generator 4a. To the system controller 10, a medal insertion sensor 3 a that detects a medal installed in the medal insertion slot 3 and a medal payer 12 are connected via a driver 11. The start signal generator 4a outputs a game start signal when the start lever 4 is operated, and the medal insertion sensor 3a outputs a random number generation signal when the medal is detected.
[0015]
The system controller 10 is connected to a motor control circuit 13 that operates in response to a start signal. Pulse motors 14L, 14C, 14R for rotating the reel drums 6L, 6C, 6R are connected to the motor control circuit 13 via drivers 15L, 15C, 15R, and the rotational positions of the reel drums 6L, 6C, 6R are adjusted. Position sensors 16L, 16C, and 16R to be detected are also connected. The motor control circuit 13 performs stop control of each reel drum 6L, 6C, 6R from the drive pulse output to each pulse motor 14L, 14C, 14R and the position detected by the position sensors 16L, 16C, 16R.
[0016]
A random number generator 17 for generating a random number is connected to the system controller 10, and a sampling circuit 18 that performs sampling by a start signal is connected to the random number generator 17. The random number sampled by the sampling circuit is stored in the system controller 10. Is output.
[0017]
The system controller 10 includes a winning combination lottery table 19 for storing a winning combination for a sampled random number, a winning determination table 20 for storing a winning range at a reel drum stop position, and the number of payout medals for each symbol combination. Are also connected to each of the payout tables 21. In addition, effect means 22 (in FIG. 1, the liquid crystal display 8 and the flashing lamp 9 provided on the upper portion of the front panel 2) for connecting various effects of light and sound at the start of the game, during the game progress, and at the time of winning a prize is also connected. Yes.
[0018]
The system controller 10 is connected to a game counter 23 that counts the number of games and can store and set an arbitrary number of games in advance. If the special symbol is not won by random lottery for each game, the game counter 23 cumulatively counts the number of games as the number of digested games and counts until the number reaches a preset number, for example, 500. When the game digest count reaches the set count, the game counter 23 outputs an output signal to that effect to the system controller 10. Upon receiving this signal, the system controller 10 is configured to change the table of the winning combination lottery table 19 for high probability and perform game control as a special gaming state. Also connected to the system controller 10 is a special gaming state notification means 24 for notifying the player that the number of games consumed by the game counter 23 has been controlled to the special gaming state over 500 times. Yes.
[0019]
FIG. 3 is a flowchart showing a flow of game control in the slot machine configured as described above. As shown in the figure, first, when a medal is inserted into the medal insertion slot 3 in step S1 and the start lever 4 is operated, a game in step S2 is started, and a lottery process in step S3 is performed. In step S4, it is determined whether or not the big bonus BB is won in the current lottery. If BB is won, the process proceeds to the branch route (2).
[0020]
If BB is not won, the number of games is cumulatively counted by the game counter 23 in step S5, and it is determined whether or not the preset number of games 500 has been reached in step S6. If so, proceed to branch route (2). If it is determined that the number has reached 500, the winning combination lottery table 19 is changed to a high probability in step S7 and the process proceeds to the branch route (2).
[0021]
When proceeding to the branch route {circle around (2)}, it is determined in step S8 whether or not the stop buttons 5L, 5C, and 5R have been operated. If it is determined that the stop buttons have been operated, reel stop control is performed in step S9. In step S10, it is determined whether or not the BB symbols have been won together. If a prize is awarded for the BB symbol, a big bonus game process is performed in step S11.
[0022]
If it is determined in step S10 that the BB symbol has not been won, it is determined in step S12 whether or not a small role symbol other than the special symbol has been won. In S13, a medal payout process is performed, and if the winning combination is not a small role, the process proceeds to the branch route (1). When the BB game process in step S11 or the medal payout process in step S13 ends, the process proceeds to the branch route (1), and the same game control as described above is performed.
[0023]
As a result of the above-described game control, if the BB is not won out of the preset 500 times of game digestion, the winning combination lottery table is changed to a high probability, and a special gaming state is set to be advantageous to the player. A game can be played. By setting such a number of games, it is possible to avoid a game mode in which a state that is not won by being influenced by game luck continues without bottom, and the player tries to enjoy the game without impairing the interest in the game A certain amount of loss can be prevented from increasing in the financial burden to be dropped.
[0024]
In the above-described embodiment, when the number of games that will be the bottom of the game is set in advance, the count information of the number of games is reset when the slot machine body is turned on. If a considerable amount of time has not passed, the special gaming state will not start. Therefore, only when the power of the slot machine main body is turned on, the set number of game times at which the special game state for the game counter 23 starts from the system controller 10 may be output. In this case, the number of settings is reduced to, for example, 50 times, 100 times, and 200 times with respect to the above 500 times, and the time from the opening of the store to the occurrence of a special gaming state is shortened, so You can create a lively atmosphere and enhance the effect of attracting customers. This initial setting itself can be determined at random by lottery to further enhance the production effect.
[0025]
【The invention's effect】
As is apparent from the above description, according to the slot machine of the present invention, a gaming state advantageous to the player occurs when a special symbol that is a big hit is not won until the preset number of games is exhausted. Since the game is controlled in this manner, the bottom of the so-called game itself is formed, and it is possible for the player to enjoy fair game characteristics that are not influenced by game luck.
[0026]
In addition, since the number of games that is different from the preset number of games can be set only when the slot machine body is turned on, the ratio of the special gaming state occurring only at the start of business is changed to change the game performance for the player It is also possible to entertain the player without further impairing the fun of the game.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an appearance of a slot machine according to the present invention.
FIG. 2 is a block schematic diagram showing an electrical configuration of the slot machine of the present invention.
FIG. 3 is a flowchart showing a flow of game control.
[Explanation of symbols]
1 slot machine 2 front panel 3 medal slot 4 start lever 5L, 5C, 5R stop button 6L, 6C, 6R reel drum 10 system controller 23 game counter

Claims (4)

A plurality of reel drums rotated by the operation of the start means are provided, a random number lottery is performed by a start signal of the start means, a winning determination is made according to the result of the random number lottery, and the plurality of reel drums are sequentially stopped. In the slot machine that displays a prize by a combination of symbols appearing in the display window when stopped by
A game counter that counts the number of games and sets the number of bottom games as the bottom of the game,
If the game number of times the game counter has counted does not win to reach the number of games that have been set in advance, the winning probability by the random number lottery, and stores the winning against sampled random by the start signal of the start means Game control means for controlling the game so that a special gaming state is generated by changing the winning lottery table for high probability and raising it,
The game control means performs the game control by changing the winning combination lottery table to a high probability with the number of bottom games set by the game counter, while the count information of the game count is reset when the slot machine body is turned on. If it is, changing the winning combination lottery table for high probability based on the number of games less than the number of bottom games, to perform the game control,
A slot machine featuring. The slot machine according to claim 1, wherein
Notification means for notifying that the game state is in the special game state while the game control means controls the game so that the special game state occurs.
A slot machine comprising: The slot machine according to claim 1 or 2,
The game control means randomly determines the number of games less than the number of bottom games by lottery,
A slot machine featuring. A plurality of reel drums rotated by the operation of the start means are provided, a random number lottery is performed by a start signal of the start means, a winning determination is made according to the result of the random number lottery, and the plurality of reel drums are sequentially stopped. In the winning probability changing method of the slot machine that displays a prize by a combination of symbols appearing in the display window when stopped by
A counting step of counting the number of games by a game counter that sets the number of bottom games as the bottom of the game;
When the number of games counted in the counting step does not win before reaching a preset number of games, the winning probability by random number lottery is stored as a winning combination for the random number sampled by the start signal of the start means A game control step for controlling the game so that a special gaming state is generated by changing the role lottery table for high probability and enhancing it,
The game control step performs the game control by changing the winning combination lottery table to a high probability with the number of bottom games set by the game counter, while the count information of the number of games is reset when the slot machine body is turned on. If it is, changing the winning combination lottery table for high probability based on the number of games less than the number of bottom games, to perform the game control,
The winning probability changing method characterized by

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