JPH0464718B2 - - Google Patents

Description

[Detailed description of the invention] [Technical field to which the invention pertains] The present invention relates to a ball hitting device for a pachinko game machine, and more specifically, the present invention relates to a ball hitting device for a pachinko game machine, and more specifically, a ball hitting device that responds to changes in magnetic flux generated by the on/off operation of a solenoid, such as a rotary solenoid. In a ball hitting device equipped with a driving force source that rotates a ball batting rod, for example, it is possible to effectively prevent a decrease in elastic force caused by an increase in internal resistance caused by heat generation of the solenoid during long-term play. The present invention relates to a ball hitting device for a pachinko game machine.

[Technical background of the invention]

In recent years, ball hitting devices have been devised that include a driving force source that drives a ball hitting rod in response to changes in magnetic flux caused by the on/off operation of a solenoid such as a rotary solenoid.

In this type of ball hitting device, when the solenoid is off, the ball stick is returned to its initial position by its own weight or a return spring, and when the solenoid is on, the ball stick is energized to return to the ball hitting position. A pachinko ball is being fired.

However, in the case of the seed ball hitting device, the resistance value of the solenoid increases due to the influence of the heat generated by the solenoid as the game time passes, and the current flowing through the solenoid decreases, causing the magnetic flux density to decrease and the ball to be fired. The phenomenon of decreased power generation occurs,
There is a drawback that as the game time progresses, a stable rebound force cannot be obtained unless the rebound force adjustment lever is operated one after another.

[Purpose of the invention]

The present invention has been made in view of these drawbacks, and provides a ball hitting device for a pachinko game machine that can effectively prevent a decrease in elastic force caused by an increase in internal resistance caused by heat generation of a solenoid. The purpose is to provide

[Summary of the invention]

In summary, the ball hitting device of the pachinko game machine of the present invention is configured to increase the driving power in response to the increase in the heat generation amount of the solenoid, and the amount of rotation of the elastic force adjustment lever remains unchanged even after the playing time has elapsed. As long as is kept constant, a stable rebound force can be obtained.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

First, FIG. 1 is a mechanical diagram of a ball hitting device of a pachinko game machine, and a launch board 2 on which movable parts of a ball hitting mechanism are mounted is fixed to a machine frame 1 of the game machine. A rotary solenoid 3 that fits within the thickness of the machine frame 1 as an example of a driving force source is fixed approximately at the center of the firing board 2, and a ball hitting rod 5 is fixed to the rotating shaft 4 of the rotary solenoid 3 with a nut 6. Further, 7, 8, and 9 are buffer members that cushion the impact when hitting the ball. Furthermore, 10
is a return spring provided as desired, and is used to place the batting rod 5 in the initial position by its traction force.

In addition, reference numeral 11 in the figure shows an example of an operating mechanism that differentially moves the movable members of the ball-hitting mechanism. Specifically, the operating mechanism 11 includes a bowl-shaped base 12 that serves as an attachment member to the machine frame 1, and a bowl-shaped base 12 that serves as an attachment member to the machine frame 1. A bowl-shaped lid part 13 is coaxial with the bowl-shaped lid part 12 and has a known touch sensor for detecting changes in stray capacitance due to the player's tentacles. It is provided on the bowl-shaped lid part 13, and includes an elastic force adjustment lever 14 to be adjusted, and a variable resistor 15 whose slider moves and its resistance value increases as the amount of rotation of the elastic force adjustment lever 14 is increased. The detected output of the touch sensor and the output of the variable resistor 15 are applied to a control circuit 17 via a lead wire 16.

The details of the control circuit 17 will be described later, but the control circuit 17 synchronizes with the pulse cycle when the player touches the tentacle, and sends a drive current with an amplitude corresponding to the amount of rotation of the elastic force adjustment lever 14 via the lead wire 18. It is adapted to be supplied to the rotary solenoid 3. Further, the rotary solenoid 3 has a structure in which a rotor is placed in a magnetic field formed by a solenoid, which is a stator, and when a drive current is supplied to the solenoid, the rotor suddenly moves due to the electromagnetic force acting on the rotor. , and rotates the ball batting rod 5 fixed to the rotating shaft 4 clockwise in the drawing, so that the tip 19 of the ball batting rod 5 is aligned with the guide rail 2.
A pachinko ball placed at a ball hitting position 21 of 0 is fired.

When the pachinko ball at the ball hitting position 21 is fired in this way, the driving lever 22 swings around the shaft 23 in conjunction with the firing action of the ball batting rod 5 at this time, and the driven lever 24 on the same axis swings. It also sways. Therefore, the balance 25
The pachinko ball also swings, and one pachinko ball supplied from the supply tray 26 is sequentially fed into the ball hitting position 21 through the supply window 27.

By the way, what ultimately determines the repulsive force in the seed ball hitting device is the electromagnetic force acting on the rotor of the rotary solenoid 3, but as mentioned above, in the seed ball hitting device, heat generation due to the passage of playing time As the resistance value of the solenoid increases, the current flowing through the solenoid decreases and its magnetic flux density decreases, and the electromagnetic force acting on the rotor of the rotary solenoid 3 decreases, and the elastic force also decreases. .

Therefore, in the present invention, a means for detecting heat loss is provided in the control circuit 17, and a stable elastic force can be obtained by controlling the driving power to the rotary solenoid 3 in response to the heat loss.

Therefore, from FIG. 2 onwards, a specific example of the control circuit 17 will be explained along with its operation.

FIG. 2 is a circuit diagram showing an example of the control circuit 17. First, 3, 13, and 15 are the rotary solenoid 3, bowl-shaped lid 13, and variable resistor 15 shown in FIG. Reference numeral 33 indicates a touch sensor that detects a player's tentacle on the bowl-shaped lid 13, and 33 indicates an oscillator that oscillates when the touch sensor 32 is in an on state. Further, 34 indicates a frequency dividing circuit that divides the frequency of the pulse generated by the oscillator 33. When the oscillator 33 starts oscillating, the frequency dividing circuit 34 has a cycle of 610 ms.
outputs a positive pulse with a pulse width of 60ms.

Further, 35 is connected between the voltage source 36 and the ground,
A transistor is shown as an example of a switching element connected in series with the rotary solenoid 3. The transistor 35 is turned on using the on-pulse of the frequency divider circuit 34 as a base current, and a driving current is supplied to the rotary solenoid 3 from a voltage source 36. It is for flowing.

Also, 37 is the rotary solenoid 3 due to heat generation.
The magnetic flux density detector 37 detects a change in the resistance value as a change in magnetic flux density.
Specifically, it is constituted by a Hall element and placed in the magnetic field of a solenoid constituting the rotary solenoid 3. The level of the detection output of this magnetic flux density detector 37 decreases as the magnetic flux density decreases, and the output voltage of this magnetic flux density detector 37 is increased by the operational amplifier 38.
is added to the inverted input of

On the other hand, a level determined by the output level of the voltage source 36 and the voltage division ratio of the resistor R1, the variable resistor 15, and the resistor R2 is applied to the non-inverting input of the operational amplifier 38, and the differential output of the operational amplifier 38 is It is applied to the control input of voltage source 36. This voltage source 36 is configured to increase its output level when the control input level increases. The drive current that is the output of the voltage source 36 is applied to the rotary solenoid 3 when the transistor 35 is turned on by the on-pulse of the frequency divider circuit 34.

Next, the operation of the embodiment shown in FIG. 2 will be explained.

First, when the player turns the spring force adjustment lever 14 shown in FIG.
5 is determined, and the touch sensor 32 is activated by the player's tentacle on the bowl-shaped lid 13.
turns on. When the touch sensor 32 is turned on, the oscillator 33 starts oscillating and applies a positive pulse to the frequency dividing circuit 34. The frequency dividing circuit 34 divides this frequency and applies it to the base input of the transistor 35, and
Since the transistor 35 is turned on at the timing of the on-pulse of the frequency dividing circuit 34, the transistor 35 is turned on for a period of 60 ms with a period of 610 ms.

Since the rotary solenoid 3 is connected in series with the transistor 35 between the voltage source 36 and the ground, a drive current flows through the rotary solenoid 3 every time the transistor 35 is turned on.
An electromagnetic force corresponding to this drive current acts on the rotor. Therefore, the rotor bounces the pachinko balls in the ball hitting device 21 with a bounce force corresponding to the drive current.

By the way, as the gaming time elapses in this way, the resistance value of the rotary solenoid 3 increases due to the heat of the rotary solenoid 3 itself, so if a constant voltage is continued to be applied, the drive current flowing through the rotary solenoid 3 will increase. decreases, and its elasticity also decreases.

Therefore, in the embodiment shown in FIG. 2, the magnetic flux density detector 37 works to ensure that the elastic force is not reduced due to heat generation.

That is, the magnetic flux density detector 37 is arranged at a position interlinked with the magnetic flux generated by the rotary solenoid 3, and its output level is proportional to the magnetic flux density of the rotary solenoid 3, so that the resistance value of the rotary solenoid 3 increases. When the magnetic flux density of the rotary solenoid 3 decreases due to this, the level that the magnetic flux density detector 37 applies to the inverting input of the operational amplifier 38 also decreases. Therefore, the output level of the operational amplifier 38 increases, and the voltage source 36 increases its output level and acts in the direction of increasing the drive current flowing through the rotary solenoid 3, so that the elastic force generated by the batting rod 5 is restored. .

As mentioned above, the variable resistor 15 is configured so that its resistance value increases in accordance with the amount of rotation of the elastic force adjustment lever 14, so if the player rotates the elastic force adjustment lever 14 a lot. Then, the non-inverting input level of the operational amplifier 38 rises, and the output level of the operational amplifier 38 rises. Therefore, the output level of the voltage source 36 increases, so that the elastic force increases.

Next, FIG. 3 shows a modification of the embodiment shown in FIG. 2, and the same elements as in the example shown in FIG. 2 are given the same symbols as in FIG. 2, and redundant explanations are omitted. However, in the embodiment shown in FIG. 3, a temperature sensor 39 such as a thermistor is used to ensure that the elastic force is not reduced due to heat generation.

That is, in the embodiment shown in FIG.
The composition thereof is such that it exhibits a positive resistance value as the detected temperature increases. In addition, the temperature sensor 39 is connected in series with the resistor R3 between the power supply and the ground in terms of the circuit, and in terms of the structure, it is buried in the magnetic core of the rotary solenoid 3 or other places affected by the heat generated by the rotary solenoid 3. Placed.

According to the embodiment of FIG. 3, the operational amplifier 38
The level of the non-inverting input of resistor R3 and temperature sensor 3
It is determined by the partial pressure ratio of 9. When the temperature of the rotary solenoid 3, that is, the temperature of the temperature sensor 39 rises as a result of a long game, the resistance value of the temperature sensor 39 rises and the level of the non-inverting input of the operational amplifier 38 rises. Therefore, the output level of the operational amplifier 38 increases, and the output level of the voltage source 36 also increases, so that the drive current of the rotary solenoid 3 increases and a stable elastic force can be obtained.

Next, FIG. 4 is a circuit diagram showing another embodiment of the present invention, in which the rotary solenoid 3 and the bowl-shaped lid part 1
3. Variable resistor 15. Touch sensor 32. Oscillator 3
3.Resistors R1, R2, etc. are the same as in the example of FIGS. 2 and 3. Furthermore, the output period and pulse width of the frequency divider circuit 40 are determined by the frequency divider circuit 34 shown in FIGS. 2 and 3.
However, in the example of FIG. 4, the frequency divider circuit 40 outputs a negative pulse as shown in FIG.

The output of the frequency dividing circuit 40 is the transistor 41
It is applied to the base input of the transistor 43 via the inverter 42, thereby turning on and off the transistors 41 and 43 at the same time. In this embodiment, when the transistor 43 is on, the capacitor 46 is charged from the detection power supply 44 via the diode 45 - the resistor R4 - the transistor 43, and the change in the resistance value of the rotary solenoid 3 is reflected in the charge level of the capacitor 46. Detect as a change.

On the other hand, when the transistor 41 is turned on,
A base current flows from the drive power supply 47 to the transistor 48 via the resistor R5, turning on the transistor 48, and the transistor 48 is turned on from the drive power supply 47.
A drive current is supplied to the rotary solenoid 3 via the rotary solenoid 3.

In this embodiment, by controlling the base current flowing through the transistor 48 in accordance with the charge level of the capacitor 46, the amount of drive current flowing through the rotary solenoid 3 is stabilized even if the resistance value of the rotary solenoid 3 changes. Even if the resistance value of the rotary solenoid 3 increases as a result of long-term gaming, a stable elastic force can be obtained.

In the figure, 49 and 50 are operational amplifiers, and 51 is an operational amplifier.
5 represents a reference power supply that provides a reference level to the operational amplifier 50, R6 and R7 represent resistors for adjusting the gain of the operational amplifier 49, and 52 represents a diode that controls the base current of the transistor 48.

Next, the operation of the embodiment shown in FIG. 4 will be explained.

First, to outline the operation, in the case of the embodiment shown in FIG.
A drive current is supplied to the rotary solenoid 3 through the rotary solenoid 3, and when the amount of drive current is determined, the magnetic flux density of the rotary solenoid 3 is determined, and its elastic force is also determined. When the resistance value of the rotary solenoid 3 increases due to a rise in temperature, the drive current flowing through the rotary solenoid 3 decreases. However, in this embodiment, the capacitor 46 The conductivity of the transistor 48 is changed in response to the change in the charge level of the capacitor 46, and the drive current flowing through the rotary solenoid 3 is stabilized even if the resistance value of the rotary solenoid 3 changes. It is done like this.

Next, let's explain its operation in more detail.

First, the output of the frequency dividing circuit 40 is connected to the transistor 41.
Since the transistor 41 is added to the base of
T1 time is off and T2 time is on, repeating intermittent on and off. When the transistor 41 is on, the base of the transistor 48 falls to the ground, so the transistor 48
is cut off and no driving current is supplied to the rotary solenoid 3, and the ball hitting rod 5 is connected to the return spring 10.
is placed in the initial position by the tensile force of Also, when the transistor 41 is off, the transistor 48
Since the base current is supplied from the drive power supply 47 via the resistor R5 to the rotary solenoid 3, the transistor 48 is turned on, and the drive current is supplied from the drive power supply 47 to the rotary solenoid 3 via the transistor 48. The ball rod 5 performs a springing action against the tensile force of the coil spring 10.

As the popping action is executed in this way, the rotary solenoid 3 generates heat and its resistance value increases, as mentioned above, so if the voltage applied to the rotary solenoid 3 is constant, the rotary The amount of current flowing through the solenoid 3 decreases, and the elastic force of the ball hitting rod 5 decreases.

Therefore, in this embodiment, during time T2 when the transistor 43 is on, the resistance value of the rotary solenoid 3 is detected as the charge level of the capacitor 46, and the transistor 48 Even if the resistance value of the rotary solenoid 3 fluctuates, the combined resistance of the transistor 48 and the rotary solenoid 3 is stabilized, so that a stable drive current is supplied to the rotary solenoid 3. ing.

That is, since the output of the frequency dividing circuit 40 is inverted by the inverter 42 and applied to the base of the transistor 43, a time base current of T2 flows through the transistor 43, and the transistor 43 is turned on.

In addition, the rotary solenoid 3 has a detection current 44.
A voltage is applied to the rotary solenoid 3 through a diode 45 and a resistor R4, and the terminal level of the rotary solenoid 3 is determined by the voltage division ratio between the resistance value of the resistor R4 and the resistance value of the rotary solenoid 3 itself. When the transistor 43 is turned on, the capacitor 46 is charged to the terminal level of the rotary solenoid 3, but since the resistance value of the resistor R4 is constant, the charging level of the capacitor 46 is only the resistance value of the rotary solenoid 3. It will be decided depending on.

First, immediately after starting the game, rotary solenoid 3
Since the amount of heat generated by the capacitor 46 is small and its resistance value is low, the charge level of the capacitor 46 is relatively low.Furthermore, as the resistance value of the rotary solenoid 3 increases as the temperature rises as the game time passes, the capacitor 46
6 has a relatively high charge level.

The charge level of capacitor 46 is then applied to the non-inverting input of operational amplifier 49 to
The output level of the operational amplifier 49 is applied to the non-inverting input of the operational amplifier 50 and amplified, so the output level of the operational amplifier 50 changes in accordance with the output level of the capacitor 46. As the charge level of capacitor 46 increases, the output level of operational amplifier 50 also increases.

Then, when the time T2 ends and the time T1 arrives, the transistor 41 is cut off by the output of the frequency divider circuit 40.

On the other hand, in this embodiment, the level of the drive power supply 47 is
Around 30V, and the level of operational amplifier 50 is 20V
It is set to increase and decrease before and after. Current is supplied from the drive power supply 47 to the common terminal point of the base of the transistor 48, the collector of the transistor 41, and the anode of the diode 52 via the resistor R5, so when the transistor 41 is in the on state, the resistor R5 is All the current supplied through the transistor 41 flows to ground through the transistor 41.
When the transistor 41 is cut off at the time T1 as described above, this current flows to the base of the transistor 48 and is passed through the diode 52 to the output side of the operational amplifier 50.

As already mentioned, as the resistance value of the rotary solenoid 3 increases as the game time passes, the charge level of the capacitor 46 increases, and the output level of the operational amplifier 50 also increases. The forward voltage decreases, and the amount of current passed to the output of the operational amplifier 50 via the diode 52 decreases. Then, since the decreased amount of current handled by the output of the operational amplifier 50 flows as the base current of the transistor 48, the conductivity of the transistor 48 increases and the drive current supplied to the rotary solenoid 3 increases. act in the direction of

Therefore, according to this embodiment, even if the resistance value of the rotary solenoid 3 changes due to heat generation over time, the amount of current supplied to the rotary solenoid 3 is stabilized, so that the resistance value of the variable resistor 15 changes. Unless it is artificially changed, the rebound force from the batting rod 5 will also be stable.

Next, FIG. 6 is a circuit diagram showing another embodiment of the present invention. The embodiment shown in FIG. 6 has most of the same structures and functions as the embodiment shown in FIG. 4, so components that are the same as those in the embodiment shown in FIG. will be added to omit duplicate explanations. Also, its basic operation is similar to the embodiment shown in FIG. 4, in which the conductivity of the transistor 48 is determined in accordance with the charge level of the capacitor 46, and the rotary solenoid 3 is Even if the resistance value of the rotary solenoid 3 fluctuates, the combined resistance of the transistor 48 and the rotary solenoid 3 is stabilized, and the drive current flowing through the rotary solenoid 3 is kept constant.

To explain the difference from FIG. 4, the frequency divider circuit 53 is different from the frequency divider circuit 4 in FIG. 4, as shown in FIG.
In addition to generating a negative pulse φ1 with a period of 610ms and a pulse width of 60ms as in 0, a negative pulse φ1 with a period of 610ms, a pulse width of 50ms, and a phase of 50m is generated.
A negative pulse φ2 advanced by s is generated.

In this embodiment, at time T3 shown in FIG. 7, the pulse φ2 generated by the frequency dividing circuit 53 turns on the transistor 43 and the transistor 54 to charge the capacitor 46. As in the illustrated embodiment, the conductivity of transistor 48 at time T1 is determined in response to the charge level of capacitor 46.

More specifically, when the transistor 43 and the transistor 54 are turned on by the pulse φ2, the capacitor 46 is charged to a level determined by the voltage division ratio between the resistance value of the resistor R4 and the resistance value of the rotary solenoid 3. Ru.

Therefore, the charge level of the capacitor 46 increases as the resistance value of the rotary solenoid 3 increases as the temperature increases with the passage of gaming time. Since this embodiment is otherwise configured similarly to the embodiment shown in FIG. 4, the higher the charge level of the capacitor 46, the more
8 base current increases and the conductivity of transistor 48 increases. Therefore, even in the case of this embodiment, even if the resistance value of the rotary solenoid 3 changes due to the influence of heat generation, the combined resistance of the transistor 48 and the rotary solenoid 3 remains constant, and a stable drive current is supplied to the rotary solenoid 3. The ball rod 5 performs a springing action with a stable springing force.

In the case of the embodiment shown in FIG. 6, current is only supplied from the detection power supply 44 to the rotary solenoid 3 during a very short period of time T3.
Even without providing the return spring 10, the ball batting rod 5 can return to its initial position by its own weight when the transistor 48 is cut off.

Next, FIG. 8 is a circuit diagram showing another embodiment of the present invention, and the embodiment of FIG. , shows an example of a circuit for differentially driving a driving force source that rotates a rotor in both left and right directions by reversing the direction of magnetic flux formed by a solenoid.

The structure of this driving force source will be explained with reference to FIG. 9. This driving force source has a structure in which a rotor 3c having SN poles is placed in a magnetic field formed by solenoids 3a and 3b. P2 is always placed at ground level. Then, at the time of firing, the terminal point P
1, P3 is set to a positive potential, currents I1 and I2 are caused to flow,
When it is not triggered, the terminal point P1 is set to a positive potential and the terminal point P3 is set to a positive potential.
Currents I3 and I4 are caused to flow with the voltage set to negative potential.

Then, by flowing the currents I1 and I2, the solenoids 3a and 3b generate magnetic fluxes B1 and B2, respectively, so the rotor 3c rotates clockwise from the initial position to the state shown in the figure, and is fixed to the rotor 3c. The hit ball rod 5 performs a firing action accordingly. Also, by flowing currents I3 and I4, solenoid 3
The magnetic fluxes a and b generate magnetic fluxes B3 and B4, respectively, and these magnetic fluxes B3 and B4 cancel each other out, so that no magnetic force acts on the rotor, and the ball hitting rod 5 returns to its initial position under its own weight. Therefore, when the driving force source shown in FIG. 9 is used, the return spring 10 becomes unnecessary.

The embodiment shown in FIG. 8 also basically increases the conductivity of the transistor 48 in response to the increase in the resistance value of the solenoids 3a and 3b due to heat generation, thereby stabilizing the combined resistance of the transistor 48 and the solenoids 3a and 3b. Moreover, it is designed to be able to supply a stable drive current to the solenoids 3a and 3b regardless of resistance changes in the solenoids 3a and 3b, and therefore, many of its components are shown in FIGS. This is common to the embodiment. Regarding the common elements, please refer to the 4th section.
The same reference numerals as in FIG. 6 and FIG. 6 are used to avoid duplication of explanation, and different elements will be explained below. In the figure, 55 is a current I3 flowing through the solenoid 3a when the batting rod 5 returns to its initial position. transistor, 5
Reference numeral 6 denotes a transistor that causes a current I4 to flow through the solenoid 3b when the batting rod 5 returns to its initial position, 57 a diode that prevents the current from flowing backward when the batting rod 5 returns to its initial position, and 58 a negative current I4 for flowing the current I4. Each auxiliary power source is shown.

Next, the operation of the embodiment shown in FIGS. 8 and 9 is as follows.
Let's explain with reference to the time chart in FIG.

First, the pulse φ1 generated by the frequency dividing circuit 40 is applied to the base of the transistor 41, turning the transistor 41 on for a time T2. Therefore,
Since the base of the transistor 48 falls to the ground during T2, the transistor 48 is cut off and no current is supplied from the drive power supply 47 to the solenoids 3a and 3b.

Further, the pulse φ1 generated by the frequency dividing circuit 40 is passed through the inverter 42 to the transistors 43, 55, 5.
6, the transistors 44, 55, and 56 are also turned on at the same time during T2.

First, when the transistor 55 is turned on, a current I3 flows from the detection power supply 44 to the ground via the solenoid 3a, and when the transistor 56 is turned on, a current I4 flows from the ground to the auxiliary power supply 58 via the solenoid 3b. flows.

Therefore, as explained in FIG. 9, the solenoid 3a carries the magnetic flux B3, and the solenoid 3b carries the magnetic flux B4.
are generated, and these magnetic fluxes B3 and B4 cancel each other out, so no magnetic force acts on the rotor 3c,
The ball hitting rod 5 connected to the rotor 3c returns to its initial position under its own weight.

Also, at this time, the transistor 43 turns on at the same time, so that the capacitor 46 is charged to the level of the terminal point P1. Also in this embodiment, the charging level of the capacitor 46 is determined by the voltage division ratio between the solenoid 3a and the resistor R4, so the charging level of the capacitor 46 increases as the resistance value of the solenoid 3a increases due to the influence of heat generation. It turns out.

In this embodiment as well, the circuit system for controlling the conductivity of the transistor 48 during the time T1 in accordance with the charge level of the capacitor 46 during the time T2 is similar to the embodiments shown in FIGS. 4 and 6. As the temperature rises, solenoid 3a
When the resistance value of the transistor 48 increases, the conductivity of the transistor 48 also increases, and due to the influence of heat generation, the solenoid 3a,
Even if the resistance value of b increases, the combined resistance of the transistor 48 and the solenoids 3a and b during time T1 remains stable. Therefore, solenoid 3 due to heat generation
Regardless of changes in the resistance values of a and b, stable driving currents I1 and I are supplied to the solenoids 3a and 3b, respectively.
2 is supplied, and the repulsive force of the batting rod 5 becomes stable.

In the above example, the present invention is applied to an example in which the elastic force is adjusted by the variable resistor 15 linked to the elastic force adjustment lever 14. It is also possible to apply the present invention to a ball hitting device in which the initial position of the ball rod 5 is varied to adjust the spring force.

Furthermore, although the above example uses a touch sensor that detects changes in stray capacitance caused by the player's tentacles and provides a batting instruction, it is also possible to use any other known switch mechanism for batting instructions. can.

Further, although the above example shows an example in which the present invention is applied to a ball hitting device that rotates in response to the on/off operation of a solenoid, the present invention may also be applied to a ball hitting device that slides linearly due to the operation of a solenoid. You can also do that.

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to prevent a decrease in elastic force caused by an increase in the internal resistance of the solenoid that occurs as the solenoid heats up due to long-term gaming, so it is possible to effectively reduce the so-called uneven flight of a batted ball. Not only can this be prevented, but also a stable resilient force corresponding to the amount of rotation of the resilient force adjustment lever can be obtained, allowing the player to freely finely adjust the resilient force.

[Brief explanation of the drawing]

FIG. 1 is a mechanical diagram of a ball hitting device of a pachinko game machine according to an embodiment of the present invention, and FIGS.
6 and 8 are circuit diagrams showing circuit examples of embodiments of the present invention, FIGS. 5 and 7 are timing diagrams, respectively, and FIG. 9 is a mechanism diagram of a driving force source. 3... Rotary solenoid, 5... Batting rod,
15... Variable resistor, 36... Voltage source, 37... Magnetic flux density detector, 39... Temperature sensor, 44... Detection power source, 46... Capacitor, 47... Drive power source, 48... Transistor.

Claims (1)

[Scope of Claims] 1. A ball-striking device for a pachinko game machine that includes at least a solenoid that is intermittently activated by pulsed drive power, and a springing section that makes a springy movement by the intermittent operation of the solenoid, comprising: a command value generation means for generating a command value for commanding force; a detection means for detecting the amount of heat generated by the solenoid; and a command value generated by the command value generation means and a detection value detected by the detection means. 1. A ball hitting device for a pachinko game machine, comprising operation amplifying means for controlling the drive power of the solenoid in response to deviation. 2. In the ball hitting device for a pachinko game machine according to claim 1, the detection means detects the amount of heat generated by the solenoid,
A magnetic flux density detector is provided which detects a change in magnetic flux density generated by the solenoid due to a change in resistance value of the solenoid corresponding to heat generation of the solenoid, and the output of the magnetic flux density detector is connected to the differential amplification means. A ball hitting device for a pachinko game machine, characterized in that feedback is provided to the player. 3. In the ball hitting device for a pachinko game machine according to claim 1, the detection means includes a temperature sensor that directly detects the amount of heat generated by the solenoid, and the output of the temperature sensor is transmitted to the differential amplification means. A ball hitting device for a pachinko game machine characterized by feedback. 4. In the ball hitting device for a pachinko game machine according to claim 1, the detection means detects the amount of heat generated by the solenoid,
Detecting the current supply point voltage of the solenoid that changes due to a change in the resistance value of the solenoid corresponding to the heat generation of the solenoid, and detecting that the current supply point voltage of the solenoid is fed back to the differential amplification means. A ball-striking device for pachinko gaming machines.