JPH0630656B2 - Ball game machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a ball game machine such as a pachinko machine,
More specifically, a ball game machine equipped with a variable winning device capable of converting a game ball (hit) launched on a game board surface into a first state that is disadvantageous to the player and a second state that is advantageous to the player. Regarding

[Prior Art] Conventionally, a pachinko gaming machine provided with a variable winning device as described above converts a variable winning device from a first state to a second state when a hit ball wins, thereby giving a player a large number of prize balls. I try to give an opportunity to get. In this type of pachinko gaming machine, the probability that a hit ball enters the winning device changes depending on the position and orientation of the nails arranged on the game board surface, the bending angle, the spacing between the nails, and the like. Therefore, adjusting nails is an important task in pachinko parlors, while finding a pachinko parcel that has been adjusted so that balls often appear is a condition for players to win more prize balls. 1
It has become one.

[Problems to be Solved by the Invention] However, for a specific player called a professional,
If you adjust the nail near the variable winning device or place the variable winning device in a position where it is difficult for the game ball to win, the player with poor skill will not be able to win the prize ball, and as a result, the player's skill will be reduced. As a result, there is a big difference in the number of prize balls to be acquired, and there is a problem that the game is not even for a general person.

The present invention has been made in view of such problems,
It is an object of the present invention to provide a ball game machine which gives an opportunity of winning a prize ball with an equal probability regardless of the skill of a player and which does not require conventional nail adjustment.

[Means for Solving the Problem] The present invention relates to a launching device for launching a game ball onto a game board surface,
In a ball game machine equipped with a variable winning device capable of converting a first state, which is disadvantageous to a player, and a second state, which is advantageous to a player, with respect to winning of a game ball emitted from the launching device, Each time a predetermined number of game balls are launched, a launch ball detecting means for detecting it, a random number generating means for generating a random number, a determining means for determining the value of the random number generated by the random number generating means, and the launch ball When the first random number generated by the random number generation means is determined to be a predetermined value according to the detection signal from the detection means, the variable winning device is driven to be converted into the second state until a predetermined number of game balls are won, and When the second random number generated separately from the first random number is determined to be a predetermined value, the control unit changes the range of the numerical value determined for the first random number.

As one aspect of the present invention, the random number generating means includes a first random number generating section that generates a first random number according to a detection signal from the launch ball detecting means, and a second random number generating section that separately generates a second random number. Two
And a random number generator of. A microcomputer is used as such random number generating means.

In addition, the probability that the second random number hits a predetermined value is set to be much smaller than the probability that the first random number hits, and when the second random number hits, a relatively large number of variable winning devices are played. It is advisable to convert and drive to the second state until the ball wins.

Alternatively, when the second random number is determined to be the predetermined value, the random number generating means generates a third random number each time the detection signal is output from the launch ball detecting means, and the third random number is the predetermined value. When it is determined that, the control means may stop the conversion driving of the variable winning device to the second state.

[Operation] In the ball game machine of the present invention, the random number generating means generates a first random number each time a predetermined number (for example, one) of game balls are emitted from the emitting device, and the determining means determines the value. judge.
As a result, when the value of the first random number is determined to be the predetermined value,
The variable winning device is converted and driven to the second state which is advantageous to the player. This conversion drive includes not only the case where the second state is continued, but also the case where the first state and the second state are alternately repeated. If a predetermined number of game balls are won in the variable winning device during the conversion driving, the conversion driving of the variable winning device to the second state is stopped. If a predetermined number of game balls are not won, it will be carried over to the next time. That is, the next conversion drive is performed until the number of game balls including the carry-over amount is won. Further, the random number generating means generates a second random number in addition to the first random number generated according to the detection signal from the launch ball detecting means. When the value of the second random number is determined to be the predetermined value, the control means sets the first
By changing the range of numerical values determined for the random numbers, and thus the probability of hitting the first random number, the chances of converting the variable winning device to the second state, which is advantageous to the player, are increased many times,
A special value can be given to the player.

As described above, the conversion of the variable winning device to the second state is determined by the probability that the first random number generated for a predetermined number of launch balls will hit, and the probability that the first random number will hit the second random number. Since it is changed according to the value of the random number, the player is given equal chances of winning the variable winning device and obtaining a large profit with a predetermined probability, and without the conventional nail adjustment in the amusement hall. You can manage the winning rate.

[Embodiment] FIG. 1 is a front view of a pachinko gaming machine which is an embodiment of the present invention. On the gaming board surface 2 of this pachinko gaming machine 1,
A plurality of variable prize winning devices 3 (in this case, left, center, right of the board surface) are converted into a first state in which the game balls launched from the launching device described later on the game board surface 2 cannot win and a second state in which the game ball can win. ). In addition, a large number of nails 4 are arranged on the game board surface 2 as guide means for guiding the shot game balls to the upper part of the variable winning device. On the other hand, a ball hitting handle 5 is provided on the lower right side of the front surface, and when a player operates it, a game ball is launched from a launching device attached to the back side of the game board, and the guide rails 6, 7 on the game board surface 2 are launched. It is designed to move along.

As the game ball launching device, for example, the one shown in FIG. 2 is used. The launching device 9 includes a ball launching portion 11 including a solenoid that causes the plunger 10 to project by an electromagnetic force so as to project the game ball P, and a hitting ball guide portion 12 provided on the plunger projecting side. The hitting ball guide portion 12 is formed of a cylindrical member having a notched end portion for feeding the game ball P, and a pair of guide members 12 for guiding the game ball P flipped by the tip end of the plunger 10 forward on the inner bottom surface thereof. It has parallel ribs 13.

Further, since each time a game ball P is launched from the launching device 9, it is detected, the launch ball sensor 1 is provided in front of the launching device 9.
4 are arranged. The launch ball sensor 14 is composed of a magnetic sensor having a hole through which the launched game ball P can pass,
The output is sent to a launch ball counter 18 (FIG. 3) described later.

The game ball P launched from the launching device 9 passes through the launch ball passage 15 and rises along the guide rail 6 toward the game board surface 2 as shown in FIG. 3, but does not reach the game board surface 2. The return ball P ′ returning to the launching device 9 falls into the recovery path 16. A return ball sensor 17 for detecting this is arranged in the middle of the recovery path 16, and the output of the return ball sensor 17 is sent to the return ball counter 19. As a result, the game ball (return ball) that has returned to the launching device 9 without reaching the game board surface 2 is not counted as a launch ball.

The above-mentioned launch ball sensor 14, return ball sensor 17, launch ball counter 18, and return ball counter 19 constitute a launch ball detection device 20 connected to the circuit of FIG. Here, the launch ball counter 18 increases the count value by one when the launch ball sensor 14 detects the game ball P, and the return ball counter 1
In No. 9, when the return sphere sensor 17 detects the return sphere P ', the count value increases by one.

The circuit of FIG. 5, which will be described later, generates a random number in response to a detection signal from the launch ball detection device 20, and when the random number value reaches a predetermined number, the variable winning device 3 is advantageous to the player. Two
Conversion drive to the state, and when the game ball wins in any of them, the conversion drive is stopped and returned to the first state. If a predetermined number (for example, one) of game balls does not win during these conversion drives, the next conversion drive is performed until twice the predetermined number (for example, two) of game balls wins.

Conversion drive of the variable winning device as described above may be continuous or continuous. In addition, as a method of driving the plurality of variable winning apparatuses, there is a method of converting and driving all of the variable winning apparatuses all at once, or a method of converting and driving each of the winning apparatuses one by one into two states. According to this method, the winning opening to be converted is circulated, and while the display is interesting, the variable winning device that is being converted is stopped when a predetermined number of game balls are won. Compared to the case where all of the variable winning devices are stopped, the change of all the variable winning devices is small, which is visually desirable.

The variable winning device 3 is configured, for example, as shown in FIG.

First, a pair of movable pieces 42a and 42b are arranged to be openable and closable on the front side of the game board, and the lower part thereof is covered with a cover member 43. This variable winning device includes a pair of movable pieces 42a, 42a.
When b is closed as shown in FIG. 4 (A), the game ball is in the first state in which the prize cannot be won, and as shown in FIG. 4 (B), the game ball is in the second state in which it can be won.

A bracket 45 accommodating a solenoid 44 is attached to the back side of the game board. Circular engagement plates 47 and 48 are fixed to the upper and lower ends of the plunger 46 protruding from the upper and lower sides of the solenoid 44, and the circular disc 47 at the upper end and the bracket 4 are fixed.
A coil spring 49 is arranged between the upper surface of the coil 5 and the upper surface of the coil 5. When the solenoid 44 is energized and excited, the lower end of the plunger 46 projects downward from the state of FIG. 4 (A).
Then, when the energization is stopped and the solenoid 44 is demagnetized, the plunger 46 is returned to the original state by the force of the coil spring 49. The variable winning device 3 uses the movement of the plunger 46 to open and close the pair of movable pieces 42a and 42b.

Each of the pair of movable pieces 42a, 42b has a cylindrical base portion, and is rotatably supported inside the cover member 43 by an eccentric shaft 51 provided on the front side of each base portion. Each movable piece 4
A motion transmission member 52 that converts the vertical reciprocating motion of the plunger 46 into the opening / closing motion of the movable pieces 42a and 42b is provided between the bases of the 2a and 42b and the solenoid 44. The motion transmitting member 52 is mainly composed of a rectangular plate, and is rotatably supported by supporting portions 41a and 41b extending to the left and right rear of a mounting plate of the variable winning a prize device, with projections 53a and 53b provided on the left and right end surfaces thereof serving as fulcrums. It Further, the motion transmitting member 52 has an L-shaped convex portion 54 that sandwiches the disc 48 below the solenoid on the back side, and a pair of front side extending to the bases of the corresponding movable pieces 42a and 42b. It has transmission rods 55a and 55b. The tip of each transmission rod 55a, 55b is formed thin,
Hole 56 provided on the back side of the base of each movable piece 42a, 42b
It is slidably inserted into a and 56b.

Between the bases of the pair of movable pieces 42a, 42b, there is arranged a winning ball receiving portion 58 having a triangular convex portion 57 which receives a game ball won when both the movable pieces are opened and is directed backward.
A gutter 59 for discharging the winning balls is provided on the lower rear side thereof. The winning ball receiving portion 58 receives the winning ball and also receives the winning ball.
When 2a and 42b are opened, the pair of movable pieces 42a and 42b are opened as shown in FIG. 4B by locking the protruding pieces 60a and 60b protruding downward from the base of each movable piece. Has the function of holding in.

In the variable winning device 3 having the above structure, the pair of movable pieces 42a and 42b are closed as shown in FIG. 4 (A) when the solenoid 44 is not driven. Where the solenoid 44
When it is energized and excited, the plunger 46 is lowered against the spring 49, and the convex portion 54 of the motion transmitting member 52 is pushed down via the disk 48 at the lower end thereof. Therefore, the motion transmission member 52 rotates and lifts the transmission rods 55a and 55b on the front side. As a result, as shown in FIG. 4 (B), the pair of movable pieces 42a, 42b are opened to the left and right, and the respective lower protruding pieces 6 are
0a and 60b stop when they hit the winning ball receiving portion 58. As a result, the game balls can be won, and the prize balls are discharged from the prize ball receiving portion 58 through the gutter 59 into the prize ball passage. On the other hand, when the energization is stopped and the solenoid 44 is demagnetized,
The force of the coil spring 49 returns the plunger 46 to the original state. By the upward movement of the plunger 46, the motion transmission member 52 rotates in the opposite direction to the above, and the transmission rod 55
Lower a and 55b. As a result, the pair of movable pieces 42a,
42b is in a closed state.

In the present embodiment, the above-described variable winning device is used, but other variable winning devices may be used. For example, by making a bar-shaped winning restriction member appear and disappear above a winning opening provided on the game board surface, a first state in which a gaming ball cannot or is difficult to win in the winning opening, and a second state in which a gaming ball can win. Between the position where the game ball cannot win or is difficult to win the prize hole (first state) and the position where the game ball can win (second state). Those that are movably formed can be used.

Next, the electric circuit section of the embodiment will be described.

As shown in FIG. 5, the first and second random numbers are generated according to the output signals a and b from the launch ball counter 18 and the return ball counter 19 which form the above-described launch ball detection device 20.
Random number generation units 21 and 22, first and second determination units 23 and 24 that determine the value of each generated random number, and
When the first random number determined by the determination unit 23 is a predetermined value, the plurality of variable winning devices 3 are driven to be converted into the second state until a predetermined number of game balls are won in one of them, and the second When the second random number determined by the determination unit 24 has a predetermined value, the first random number
Control unit 25 for changing the range of numerical values determined for random numbers of
And are provided.

In addition, a winning ball sensor 61 and a winning ball counter 62 are provided as winning ball detecting means for detecting when a game ball enters the variable winning device 3. The winning ball sensor 61 is composed of a magnetic sensor having a hole through which the gaming ball passes, and detects the winning ball from the change in the magnetic field when the gaming ball exiting from each variable winning device passes through the hole. Of course, a sensor (optical sensor, micro switch, etc.) other than the magnetic sensor may be used. The detection signal of the winning ball sensor 61 is input to the winning ball counter 62, where the number of winning balls is counted.

Further, in the case of a big hit described later, the variable winning device 3 is driven to be converted into the second state until the number of game balls (total) won in any of the variable winning devices 3 reaches a predetermined large number (for example, 300). Therefore, the counting unit 63 that counts the winning balls by the count signal from each winning ball counter 62 is provided. When the content of the counting unit 63 reaches a predetermined number (for example, 300), the control unit 25 causes the drive circuit 64 that drives the solenoid 44 of each variable winning device 3 to have the variable winning device 3
Send a signal to stop the conversion drive of.

In the circuit of FIG. 5, the first random number generator 21 generates a random number by performing a predetermined calculation each time the firing ball counter 18 counts 1. However, if the value of the return sphere counter 19 is 0, and the count value is 1 or more, no random number is generated. For example, when the count of the return ball counter 19 is 2, the count output of the firing ball counter 18 is passed twice (no random number is generated) from the time when it is counted. Then, the signal c that counts down the return ball counter 19 to 0 is output for that number of times.

When the value of the random number generated by the first random number generator 21 reaches a predetermined number, the variable winning device 3 is converted into the second state which is advantageous to the player as described above. Is defined as follows. For example, when the range in which the random numbers are generated is 1 to 4096, and the range in which the variable winning device 3 is in the second state is 1 to 137, the probability that the random numbers fall within the range is about 1/30. Become.

The first determination unit 23 determines whether or not the value of the random number generated by the first random number generation unit 21 falls within (hits) the range defined as above.

The control unit 25 drives the movable piece of the variable winning a prize device 3 to open and close when the determination by the first determination unit 21 is successful.
4 to drive the solenoid 44 so that the variable winning apparatus 3 is in the second state. During this conversion drive, when a game ball wins any of the variable winning devices 3 and the counter 62 outputs, the variable winning device 3 is returned to the first state, which is disadvantageous to the player, and stopped.

On the other hand, the second random number generator 22 also generates a second random number by performing a predetermined calculation each time the firing ball counter 18 counts 1, similar to the first random number generator. When the value of this random number reaches a predetermined number, the range (probability) of the first random number is changed. The probability that the second random number will hit is determined as follows. For example, the range in which the second random number is generated is 1 to
If it is 5000 and the number of hits is 1, the odds of hitting are 1/5000 (this is a big hit).

The second determination unit 24 determines whether or not the value of the random number generated by the second random number generation unit 22 is a big hit.

As a result, in the case of a big hit, the probability of hitting the first random number (for example, one-third) is increased (for example, ten-fold to one-third). This can be realized by enlarging the range where the first random number hits or reducing the range where the first random number occurs. In the case of, for example, when the range where the random number is generated is 1 to 4096, the range where the random number hits is 1
If changed to ˜1365, the probability that the random number value falls within that range is about one third. In this case, a command (probability change) signal from the control unit 25 is sent to the first determination unit 23 to change the determination range (the range where the first random number hits). On the other hand, in the case of, the range in which the random number is generated is 1 to 4
If it is 10, the probability for the range of random numbers 1 to 137 is about one third. In this case, as shown by the broken line in FIG. 5, the command (probability change) signal from the control unit 25
The random number generation unit 21 is configured to change the random number generation range. The range (probability) of the random number value thus changed is returned to the normal range (probability) by the reset signal from the control unit 25 when the state conversion of the variable winning device 3 in the case of a big hit is completed.

Further, when the result of the determination of the second random number is a big hit, a special value is given to the player until the total number of winning balls counted by the counting unit 63 reaches a relatively large number (for example, 300). The variable winning device 3 is driven to be converted into the second state. In other words, the conversion driving of the variable winning device 3 to the second state ends when the count value of the counting unit 63 reaches a predetermined number.

Alternatively, as an alternative end condition, when the second random number is a big hit, a third random number is generated, and when the random number hits a predetermined value, conversion driving of the variable winning device 3 to the second state is performed. You may make it stop. In this case, as shown by the broken line in FIG. 5, third random number generating means 26 for generating a random number each time a detection signal is output from the launch ball detection device 20, and a third determination for determining the value. When a big hit is determined by the second determination unit 23, the control unit 25 starts the third random number generation unit 26, and the value thereof reaches a predetermined value (the probability is, for example, The conversion drive of the variable winning device 3 is stopped.

In addition, a variable winning device that is driven for conversion when the probability of hitting the first random number is changed may be distinguished from a normal one, and a dedicated variable winning device that is converted to the second state only when the probability is changed may be provided.

To summarize the operation of the above-described embodiment, normally, a first random number is generated for each predetermined number of launch balls, and when the value is hit (for example, a probability of 1/30), the variable winning device 3 is set to the second. The state is continuously or intermittently converted, and when a predetermined number of game balls are won, the conversion drive is stopped. On the other hand, when a second random number is generated for the same launch ball and the value is hit (for example, 5000
The probability of the first random number is increased (for example, 10 times). As a result, the period during which the variable winning device 3 is converted to the second state is greatly increased. In this case, as a special value, in the conversion driving of the variable winning device 3 to the second state, the number of winning balls is relatively large (for example, 300).
Until the number reaches. Or generate a third random number,
Until the value reaches a predetermined value, the probability is set relatively low (for example, a probability of 1/900).

By the way, in the circuit of FIG. 5, the first to third random number generators 21, 22, 26 and the decision units 23, 24, 27 are
Each can be configured as a single random number generating means and a determining means. In addition, the random number generation unit, the determination unit,
The control unit and the counting unit can be configured by known electronic circuits, but these operations may be performed by a microcomputer.

In that case, the microcomputer is configured to have a predetermined number (eg, 1
Each time a game ball is shot, the first random number is shaken, and when the value hits the lottery, the flag 1 is set. Then, a signal for intermittently or continuously converting and driving the variable winning device 3 to a second state that is advantageous to the player is output, and the conversion driving is stopped when a game ball wins one of the variable winning devices 3. To be programmed to. If the game ball does not win even if the flag 1 is set, the flag generated in the next lottery is set to 2 and
The variable winning device is converted and driven until the number of game balls including the carry-over amount is won. In addition, when the flag 1 is set, if, for example, two game balls are won in the variable winning device 3, the flag is set to -1, and the flag 1 generated in the next lottery is offset. On the other hand, generate a second random number,
When the value hits the big hit, a flag corresponding to the big hit is set and the probability that the flag is set for the first random number is changed. Further, when the third random number is generated when the second random number hits, a flag corresponding to the predetermined value is set when the third random number hits a predetermined value.

By the way, the variable winning device 3 of the embodiment sets the state in which the game ball cannot be won by closing the pair of movable pieces, but the first state of the variable winning device used in the present invention is It may be in a state where it is difficult to win the prize (it is difficult if not impossible). In that case, even if the variable winning device is in the first state, that is, when the flag 1 is not set, the game ball may win the variable winning device. It is detected at 61. At that time, the microcomputer sets the flag to -1, and cancels it with the flag 1 generated in the subsequent lottery.

By using the microcomputer as described above and setting the flag, the state conversion of the variable winning a prize device can be executed with a predetermined probability. The first and second random numbers are generated for each predetermined number of launch balls regardless of other winning conditions, and the storage unit 28 stores the flag generated as a result of each lottery.
By sequentially storing in (FIG. 5), the operation corresponding to each flag can be executed as needed.

Although the embodiments have been described above, the present invention is not limited to pachinko game machines, but can be applied to smart ball machines, sparrow ball game machines, and other ball game machines. Also, the number and arrangement of the variable winning devices are appropriately determined.

[Effects of the Invention] As described above, in the ball game machine of the present invention, the variable winning device is made advantageous to the player by the value of the first random number generated every time a predetermined number of game balls are shot. In addition to the conversion, the probability of state conversion of the variable winning device is changed by the value of the second random number, so that the state conversion of the variable winning device and the probability of jackpot can be adjusted respectively. Therefore, the players are equally given the opportunity to obtain profits by winning the variable winning device, and can enjoy the ball game regardless of the skill of the player. It is possible to manage the winning rate.

[Brief description of drawings]

FIG. 1 is a front view of a pachinko gaming machine which is an embodiment of the present invention, FIG. 2 is a view showing an example of a game ball launching device and a launch ball sensor, and FIG. 3 is a sensing device for launching balls and return balls. Shown, 4th
FIG. 5 is a diagram showing an example of a variable winning device, and FIG. 5 is a block diagram of an electric circuit section of the embodiment. 1 ... Pachinko machine, 2 ... Game board surface, 3 ... Variable winning device, 4 ... Nail, 5 ... Hit ball handle, 6,7 ... Guide rail, 9 ... Launching device, 14 ... Launching ball Sensor, 17 ... Returning ball sensor, 18 ... Launching ball counter, 19 ... Returning ball counter, 20 ... Launching ball detecting device, 21 ... First random number generating section, 22 ... Second random number generating section , 23 ... First determination section, 24 ... Second determination section, 25 ... Control section, 26 ... Third random number generation section, 27 ... Third determination section, 28 ... Storage section, 42a, 42b ... Movable piece, 43 ... Cover member, 44 ... Solenoid, 46 ... Plunger, 52 ... Motion transmission member, 55a, 55b ... Transmission rod, 58 ... Winning ball receiving section, 59 ... Winning ball discharge gutter, 61 ... winning ball sensor, 62 ... winning ball counter, 63 ... Counting unit, 64 ... Driving circuit.

Claims (4)

[Claims] 1. A launching device for launching a game ball on a game board surface, and a conversion into a first state which is disadvantageous to the player and a second state which is advantageous to the player with respect to winning of the game ball emitted from the launching device. In a ball game machine equipped with a variable winning device which is possible, each time a predetermined number of game balls are launched from the launch device, a launch ball detecting means for detecting it, a random number generating means for generating a random number, and the random number The determining means for determining the value of the random number generated by the generating means, and the variable winning device when the first random number generated by the random number generating means is determined to be a predetermined value according to the detection signal from the launch ball detecting means. Is converted into a second state until a predetermined number of game balls are won, and when the second random number generated separately from the first random number is determined to be a predetermined value, a numerical value determined for the first random number. Control means for changing the range of A ball-and-ball game machine that features 2. A first random number generator for generating the first random number in response to a detection signal from the launch ball detecting means, and a second random number separate from the first random number. The ball game machine according to claim 1, further comprising a second random number generator for generating. 3. The probability that the second random number hits the predetermined value is relatively smaller than the probability that the first random number hits the predetermined value.
When the random number of is determined to be a predetermined value, the control means converts and drives the variable winning device to the second state until a relatively large number of game balls are won. Ball game machine. 4. When the second random number is determined to be a predetermined value, the random number generating means generates a third random number each time a detection signal is output from the launch ball detecting means, and the third random number is generated. The ball game machine according to claim (1) or (2), wherein when the random number is determined to be a predetermined value, the control means stops the conversion drive of the variable winning device to the second state.