JPH08238355A - Ball shooting device for pachinko machine - Google Patents

Abstract

PURPOSE: To make the probability of a prize wining ratio for a big hit decrease intentionally. CONSTITUTION: A rotary solenoid 23 which drives a shooting lever is driven under the condition that a player touches a shooting handle by a touch panel. When a single shooting switch 19 is depressed while the shooting operation of a ball is being performed, no current is supplied to the rotary solenoid 23, which stops the shooting operation. After that, when the single shooting switch 19 is released, a controller 31 detects the fact, and reads out a random number from a random number table written on a ROM 33. When a read out value is subtracted from data and data reaches zero, the current is supplied to the rotary solenoid 23. Since a time until a signal for supplying current from the controller 31 is outputted is determined by a random number extracted at random, a time until the rotary solenoid 23 is driven is delayed at random.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ball striking device for a pachinko machine.

[0002]

2. Description of the Related Art Conventionally, a so-called digital pachinko machine is controlled by a microcomputer, and the jackpot judgment is determined by a value taken from a random number table when a pachinko ball wins a start chucker. It The time (rotation cycle) for which the value fetched from the random number table or the like makes a round is a fixed time because of program control. Only the value extracted from the random number table etc. corresponds to, for example, a big hit, so if the timing of the big hit is known,
If you win the start chucker every rotation cycle,
In theory, you can always expect a jackpot.

By the way, a touch sensor is incorporated in an operation handle for firing a pachinko ball, and if the player does not actually touch the handle, the touch handle is operated even if the operation handle is rotated. It is designed not to be fired. On the other hand, a push button switch called a one-shot switch is arranged adjacent to the operation handle, and by pressing this one-shot switch while rotating the operation handle to shoot a pachinko ball. The hitting operation can be stopped by cutting off the power supply to the electric firing mechanism at any time. In other words, if you release the single-shot switch, you can fire the ball again,
By pressing or releasing the single-shot switch, it is possible to shoot pachinko balls at a desired shooting interval.

In addition to such a method, there is a method of firing at a desired interval. That is, when the operating handle is operated to an appropriate angular position, a coin or the like is bitten on the operating handle and held at that position. At this time, if the player does not touch the handle, the electric firing mechanism is stopped by the touch sensor, but when the handle is touched again, the handle is already held at the position where the predetermined firing strength is reached, so that the pachinko ball It will be fired.

[0005]

Therefore, if a single shot switch can be used or a handle held by a coin or the like can be momentarily touched, a hit ball can be shot at intervals corresponding to the above-described rotation cycle. , It may be possible to achieve a big hit intentionally with a high probability. Conventionally, a device for experiencing such a rotation cycle has been commercially available, and it has been difficult to take measures against it.

The present invention has been developed and devised in view of the above-mentioned conventional problems, and an object thereof is to provide a hitting ball launching device for a pachinko machine which makes it impossible to realize such an intentional big hit. It is to be.

[0007]

In order to achieve the above object, the invention of claim 1 is provided with a launching operation section provided on the front surface of a pachinko machine and operated by a player, and driven by the operation of this launching operation section. An electric drive source, a hitting ball launching mechanism for launching a pachinko ball by receiving the driving force of the electric drive source, and the electric drive source by the opening / closing operation of the player when the launching operation section is in the operating state. Switch means for enabling the supply and stop of electric power to the electric device at a desired time, and delay means for randomly changing the output timing of the operation command issued to the electric drive source in accordance with the operation of the switch means. It is characterized by having.

[0008]

The operation of the invention of claim 1 is as follows. When the firing operation unit is operated, the hitting ball firing mechanism is driven via the electric drive source, and thereby the pachinko ball is fired into the game area. In this way, when the switch means is operated while the firing operation part is in the operating state, the operation command signal is turned on / off from the delay means to the electric drive source,
Based on this, electric power is supplied to the electric drive source and stopped, and a pachinko ball is fired when desired.

However, since the output timing of the operation command signal from the delay means changes randomly, even if the operation timing of the switch means is intentionally aimed at, the operation timing to the electric drive source is randomly deviated, resulting in a pachinko machine. It is not possible to artificially aim at the firing timing of the ball.

[0010]

As described above, according to the present invention, the drive timing of the electric drive source when the switch means is operated is randomly varied. Therefore, the winning cycle is intentionally made by utilizing the rotation cycle of the random number table or the like. Operations that increase the probability can be prevented.

[0011]

Embodiments of the present invention will be described below with reference to FIGS.

First, the pachinko machine 1 will be described with reference to FIG. A metal frame 3 is attached to the front frame 2 of the pachinko machine 1. A glass door frame 4 having a glass plate and a front plate 5 are provided on the metal frame 3 so as to be openable and closable. A game board 6 is arranged behind the glass door frame 4, and the game board 6 is detachably attached to a game board fixing frame (not shown) fixed to the back surface of the front frame 2.

On the front surface of the game board 6, a guide rail 8 for guiding a pachinko ball is planted in a substantially circular shape. The area surrounded by this guide rail 8 is a game area 9. A variable winning a prize device 10 is provided substantially in the center of the game area 9. The variable winning device 10 has a pair of opening and closing blades, and opens until the opening and closing blades 11 have passed a fixed time (for example, 30 seconds) or a fixed number (for example, 10), and Open several times (eg 1
Repeatedly (six times), perform a jackpot operation that generates a large number of winning balls in a short time. Further, below the variable winning device 10, a variable display including a plurality of digital displays is formed. The variable display 12 is a start chucker 13a, 13b, 13c provided below the game area 9.
The display mode of the pachinko ball starts to change when it is won, and it stops after a certain time (for example, 5 seconds) has elapsed. When the display mode of the plurality of digital indicators when stopped is a predetermined display mode, the opening / closing wing piece 11 is opened as described above.

Further, in the game area 9, the above-mentioned variable winning device 10 and start chuckers 13a, 13b, 13 are provided.
In addition to c, general winning openings 14a to 14d are provided, and any of the above-described winning apparatuses or an outlet 15 through which a pachinko ball that has not won a prize is guided is formed.

On the surface of the front plate 5, there is attached an upper plate 16 which stores the prize balls paid out by the generation of the winning balls and guides the pachinko balls to the firing position.

Further, below the front frame 2, a firing handle 17 as a firing operation section operated by a player is attached. The firing handle 17 is rotatably provided with an adjusting lever 18 for adjusting the elastic force of the pachinko ball. In this example, the adjusting lever 18 is also used as a touch switch. Further, below the front frame 2 and near the firing handle 17, a single-shot switch 19 that constitutes the switch means of the present invention together with the touch switch 18 is arranged. The single-shot switch 19 is for stopping the drive of a hitting ball launching mechanism such as a launching punch 20 described later while the switch is being pushed, and for restarting the drive by releasing it.

Further, below the front frame 2 and to the side of the firing handle 17, a lower plate 21 for storing the prize balls which cannot be stored in the upper plate 16 is attached.

Next, the partial structure of the back side of the pachinko machine 1 will be described with reference to FIG.
A mounting plate 22 is arranged on the back side of the, and a rotary solenoid 23 which is a part of a hitting ball firing mechanism is mounted on the mounting plate 22. As shown in FIG. 4, the rotary solenoid 23 is composed of an electromagnetic coil 24 fixed to the shaft center and a cylindrical movable cylinder 25 coaxial with the electromagnetic coil 24 and rotatable around the shaft center. There is. The launching punch 20 extends in a radial direction from the movable barrel 25, and when the movable barrel 25 rotates, the resilient part 20a provided at the tip of the launching barrel 20 is held by the guide rail 26 while drawing an arc. Move toward the pachinko ball. In order to cause the launching punch 20 to move in this manner, the electromagnetic coil 24 includes a pair of magnetic pole generating pieces 24.
On the other hand, the movable cylinder 25 is provided with a pair of attraction pieces 25a, 25b made of a magnetic material corresponding to the magnetic pole generation pieces 24a, 24b. Of these, one suction piece 25a is formed integrally by bending the base of the launching punch 20. Thus, when no magnetic pole is generated on the magnetic pole generating pieces 24a and 24b, the attracting piece 2
5a and 25b are at the positions shown by the solid line in FIG. 4, and when magnetic poles are generated in the magnetic pole generating pieces 24a and 24b, the attraction pieces 25a and 25b are attracted to the magnetic pole generating pieces 24a and 24b and are shown by the two-dot chain line in the figure. Displaces to the position.
A pair of stoppers 27 sandwiching the launching punch 20 from the left and right are provided at an intermediate position of the launching punch 20, whereby the rotation range of the launching punch 20 is limited to a certain angular range.

On the other hand, a drive box 29 having a power amplification circuit 28 (see FIG. 2) for the rotary solenoid 23 is provided on the side of the mounting plate 22, and the power amplification circuit 28 is connected to the rotary solenoid 23 via a lead wire. It is connected to the electromagnetic coil 24. Further, on the rear surface side of the firing handle 17, a variable resistor 30 whose resistance value is adjusted according to the rotating operation of the adjusting lever 18 is attached to the shaft end of the adjusting lever 18, and the variable resistor 30 is used for power amplification. It is connected to the circuit 28. Further, the power amplification circuit 28 is connected to a control device 31 (the arrangement state thereof is not shown) arranged on the back surface of the pachinko machine, which will be described later.

Next, the electrical connection structure of each component related to the hitting ball firing mechanism such as the drive box 29 and the rotary solenoid 23 will be described with reference to FIG. 2 or FIG.

The above-mentioned control device 31 includes a CPU 32, RO
M33, RAM34, and interface 36
It is composed of a microcomputer provided with a and b. In this example, the variable winning device 10 and the variable display 12
It is provided separately from the main control unit that integrally controls the operations such as, and is set as a unit for launching a struck ball (however, it may be configured to be used also as these). CPU32 is RO
Processing is performed according to the program stored in M33. A random number table in which a large number of random numbers are written in the ROM 33 (this example is separate from the one provided in the main control unit for jackpot processing, but may be the same) Is formed,
When the CPU 32 performs a delay process as described below,
Numerical values stored at each address in the random number table are sequentially RA
Read on M. Further, a single-shot switch 19 and a touch switch 18 are connected to the input side of the control device 31 via an interface 37a, and the control device 31 receives the output signals from these and enables or disables the pulse oscillation circuit 40. Let One-chip CPU
Alternatively, the pulse oscillation circuit 40 and the power amplification circuit 28 may be incorporated as a single unit.

The touch switch (adjustment lever 18) is set by the player based on the capacitance between the ground and the touch switch 18
When touching, a high level signal can be output to the control device 31, and when not touching, a low level signal can be output. In addition, the single-shot switch 19 used in this example is of a normally closed type, and normally outputs a high level signal to the control device 31 (when it is not operated) and is pressed by the player. Outputs a low level signal.

A chattering prevention circuit (not shown) is interposed between the touch switch 18 and the one-shot switch 19 and the control device 31 to prevent the output signals from becoming unstable. .

On the other hand, a pulse oscillating circuit 40 is connected to the output side of the control device 31, and in the control device 31, the input signals from the touch switch 18 and the one-shot switch 19 are both high-level touch signals. On the basis of the above judgment, the high-level emission signal is output to the pulse oscillation circuit 40 with or without performing the delay processing (the delay processing will be described later). In response to the signal, the pulse oscillating circuit 40 oscillates a firing timing pulse representing the firing timing of the hit ball. And
The power amplification circuit 28 amplifies and outputs the current to the rotary solenoid 23 based on the input of the firing timing pulse.

Next, a hitting ball firing control routine according to the embodiment of the present invention, which is executed by the controller 31, will be described.

This hitting ball firing control routine is performed when the player operates the single-shot switch 19 or the touch switch 18 in the above-described manner to launch a single pachinko ball. No. 23, etc.), the driving time is randomly varied, and is repeatedly executed at predetermined time intervals. Hereinafter, a detailed description will be given with reference to the flowcharts of FIGS. 6 and 7.

The control device 31 first determines the touch switch 1
The output signal from 8 is read, and it is determined whether or not this is a high level (step 100).

That is, when the player grips the firing handle 17, in step 100, the touch switch 18
If the output signal from is determined to be high level,
That is, when the player touches the touch switch 18 and the capacitance between the touch switch 18 and the ground becomes large, it is determined that the output line of the touch switch 18 is in the high level state, and then the one-shot switch 19 is pressed. It is determined (step 110).

The single-shot switch 19 outputs a high level signal in a normal state where it is not pressed.
Therefore, when it is determined that the game is not being operated in the normal game, it is determined whether the flag F is 1 (step 120). This flag F is a one-shot switch 1
It corresponds to the presence / absence of the pressing operation of 9 and the contact / non-contact of the touch switch, that is, the output line of the one-shot switch 19 is in the high level state and the touch switch 1
Value 0 when the output line of 8 is in the high level state
Corresponds, and when either is in the low level state, the value is 1
It corresponds to each. The flag F is set to either value 0 or value 1 when the pachinko machine is powered on.

Therefore, as long as the normal handle is held by holding the firing handle 17 without pressing the single-shot switch 19, the value of the flag F is set to 0, so during the normal game. A negative determination is made in step 120, a high-level emission signal is output from the control device to the pulse oscillation circuit 40, the value 0 is assigned to the flag F (steps 130 and 140), and then the process returns.

During the above period, the control device 31 outputs a high-level emission signal, so that the pulse oscillation circuit 4
0 outputs a firing timing pulse at a predetermined timing, and the current amplified by the power amplification circuit 28 is supplied to the rotary solenoid 23 to cause the firing pestle 20 to perform a pachinko ball firing operation at a constant timing. . The current supplied to the rotary solenoid 23 is adjusted according to the rotation operation angle of the adjusting lever 18, and the variable resistor 3
It changes depending on the resistance value of 0. For example, the adjustment lever 18
When the rotational operation angle of the magnetic pole is large, the current supplied to the rotary solenoid 23 becomes large and the magnetic pole generating piece 24
The magnetic field generated in a and 24b becomes strong. Therefore, since the suction pieces 25a and 25b on the movable cylinder 25 side are attracted with a strong force, the movable cylinder 25 is angularly displaced at a high speed. Since the launching punch 20 is also rapidly displaced in association with the angular displacement of the movable barrel 25, the pachinko ball held by the guide rail 26 is launched at a high speed. On the contrary, if the rotation operation angle of the adjusting lever 18 is small, the current supplied to the rotary solenoid 23 is also small, so that the magnetic field generated is weak, the displacement speed of the launching punch 20 is correspondingly small, and the launching speed of the pachinko ball is also small. .

By the way, during the game, the random number generating program is operated by the main control unit (not shown) as described above, and the start chucker 13
The jackpot process is performed based on the random number value determined at the time of winning a, 13b, 13c. Since the rotation cycle of the random number table is constant, if the timing of the big hit is found by some method, the start chuckers 13a, 13b, 13 are held while keeping the rotation cycle by using this timing.
If a pachinko ball is launched into the game area 9 at a certain timing such that a prize is awarded to c, that is, if such a launch operation is repeated using the single-shot switch 19, the probability of a jackpot is intentionally increased. According to this example, this is solved as follows.

That is, after rotating the adjusting handle (touch switch 18) to adjust it to a predetermined angular position, a coin or the like is held in this state by being bitten into the handle.
It was previously stated that by touching or not touching the touch switch 18 in that state, a pachinko ball can be fired in a single shot.

When such an operation is performed, a negative determination is first made in step 100. Then step 1
At 50, the value 1 is assigned to the flag F, that is, the value of the flag F is changed from 0 to 1, and then the pulse oscillation circuit 4
A low level signal is output to 0 (step 16
0) and then return.

The above operation will be described more specifically. Since the handle held by a coin or the like is not touched by the player, the capacitance between the touch switch 18 and the ground is small, and the touch switch 18 is therefore small. 1
Since the output line of 8 is in the low level state, the control device 31 does not output the operation command to the pulse oscillation circuit 40, and therefore the pulse oscillation circuit 40 does not issue the firing timing pulse. For this reason, the drive current to the rotary solenoid 23 is not supplied from the power amplification circuit 28, and as a result, the pachinko ball firing is stopped.

Thus, the adjusting lever (touch switch 1
When 8) is rotated and held by a coin or the like, the resistance value of the variable resistor 30 is set to a state in which a desired amount of current can be supplied to the power amplification circuit 28, that is, the resilience is increased. The repulsive action has been suspended in the already adjusted state.

Thereafter, when the player momentarily touches the touch switch 18 at a predetermined timing, an affirmative decision is made in step 100, and since the single-shot switch 19 is not operated at this time, the affirmative decision is likewise made in step 110. Then, the process proceeds to step 120. At this time, since the value 1 indicating that the touch switch 18 was not touched last time is assigned to the flag F, an affirmative determination is made in step 120, and thereafter, the delay process for firing a hit ball (see FIG. 6). Is done. After that, the value 0 is assigned to the flag F, and the process returns to the return (step 22).
0).

As described above, random numbers are generated in the control device 31 in a constant cycle, and this value is sequentially read out on the RAM. Then, the value read at the predetermined time is set as the variable R (steps 170, 18).
0). Next, in steps 190 and 200, 1 is subtracted from the value of the variable R, and this is repeated until it becomes 0. In this way, this 0
The time to reach is different. In addition, if this time is changed in about 500 msec, the object can be achieved without any trouble in the normal game.

When it is determined in step 200 that the value of the variable R has become 0, the pulse oscillation circuit 4
A high level signal is output for 0 (step 21
0) and then return to the return through step 220.

Thus, as a result of the high level signal being output to the pulse oscillating circuit 40, the rotary solenoid 23 is excited and the firing pestle performs an elastic operation, but the control device fires the pulse oscillating circuit 40. Since the time until the signal is output is determined by the random number value taken out,
The output timing varies randomly. Therefore, even if the contact / non-contact operation interval for the touch switch 18 is intentionally adjusted at regular time intervals, the pachinko ball firing interval changes randomly. Therefore, it is possible to surely limit the operation that increases the winning probability.

Incidentally, in addition to the operation by the touch switch 18 described above, a single shot can be intentionally launched by an operation using the single shot switch 19 during a game (while continuously firing a hit ball). In this case, since the operation is performed while touching the touch switch 18, a positive determination is made in step 100, but the following step 11
At 0, a negative determination is made. As a result, the flag F is changed to the value 1 (step 150), and the pulse oscillation circuit 4
For 0, a low level signal is output and ball firing is interrupted.

Then, at a predetermined timing, the single-shot switch 1
When the pressing operation of 9 is released, that is, the touch switch 1
When only the single-shot switch 19 is released while touching 8, a positive determination is made in step 110, and the process proceeds to step 120.

However, since the flag F is set to the value 1 in the flag F due to the single-shot switch 19 being pressed last time, the above-mentioned delay process is started.
As a result, even if the timing of pressing / releasing the single-shot switch 19 is aligned with a fixed time interval, the firing interval of the pachinko balls changes randomly.

The present invention can be modified in various ways,
The following modifications are also included in the technical scope of the present invention.

In this example, the rotary solenoid 23 is used as the drive source of the hitting ball firing mechanism, but the drive source is not limited to this, and may be another electric drive source such as an induction motor, a pulse motor or a solenoid.

In this example, a microcomputer is used as the control device, but the function realized by this computer may be realized by an electronic circuit realized by a wired logic circuit using electronic parts.

[Brief description of drawings]

1] Front view of a pachinko machine

FIG. 2 is a block diagram showing an electric circuit of a hitting ball launching device.

FIG. 3 is a perspective view showing the vicinity of a launching pestle.

FIG. 4 is a sectional view schematically showing the operation of the rotary solenoid.

FIG. 5 is a flowchart for performing a delay operation.

FIG. 6 is a flowchart showing a delayed firing process.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Pachinko machine 17 ... Launching handle 18 ... Touch switch (tentacle detection means, switch means) 19 ... Single-shot switch (switch means) 23 ... Rotary solenoid 31 ... Control device

Claims (1)

[Claims] 1. A launching operation section provided on the front surface of a pachinko machine and operated by a player, an electric drive source driven by the operation of the launching operation section, and a driving force of the electric drive source. A hitting ball launching mechanism for launching a pachinko ball, and a switch means for enabling and stopping the supply of electric power to the electric drive source at a desired time by an opening / closing operation of a player when the launching operation section is in an operating state, A hitting ball launching device for a pachinko machine, comprising: a delay unit that randomly changes an output timing of an operation command issued to the electric drive source in accordance with an operation of a switch unit.