JP2002065971A - Magnetic body launch device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve problems with a magnetic body launch device that launches an iron ball with a plunger inserted into an electromagnetic solenoid, including a decrees in repetitive motion life due to wear of an operating portion, a change in launch position accuracy, an increase power consumption due to operation of the solenoid, an increase in the number of device parts and enlargement due to a complex structure, an increase in device manufacturing cost and noise of an operating body striking an iron ball. SOLUTION: A magnetic material is accelerated noncontactually by making a magnetic field act on the magnetic material (iron ball) by appropriately controlling passage of current to an electromagnetic solenoid.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device capable of firing a magnetic flying object with an electromagnetic force, a launching device such as an iron ball of a game machine, and a magnetic flying object.

[0002]

2. Description of the Related Art Conventionally, as an electromagnetic launching device for a magnetic substance such as an iron ball, a magnetic movable element called a plunger inserted into an electromagnetic solenoid is energized by a solenoid coil and operated to strike an iron ball at the tip of the movable element. What is fired is widely used in gaming machines and the like. An example can be seen in Japanese Patent No. 3027434 as an example.

[0003]

However, in the prior art launching apparatus including such an operating part, wear of the operating part and occurrence of a change in the firing position accuracy cause a reduction in the repetitive operating life and the operation of the solenoid. This has led to an increase in power consumption, an increase in device parts due to a complicated structure, an increase in size, and an increase in device manufacturing costs. Particularly in a game machine using a steel ball, the playing surface is often vertical in many cases, and the steel ball must be launched against the gravity, and the ball moving force of the solenoid movable element requires a strong force. For example, 1m against gravity
In order to launch a steel ball at a height of, means for obtaining an initial velocity of 4 m / sec or more is required. About 6 g iron ball with a 5 cm stroke mover To obtain this speed, the ball must have a hitting force of 2N or more, and the solenoid is inevitably large, which increases power consumption and makes it difficult to store it in a limited space. Was accompanied. There was also a loud noise from the operator hitting the iron ball. SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a magnetic launching device that is small, has high reliability, has a long life, and consumes little power.

[0004]

SUMMARY OF THE INVENTION The present inventor has studied the above-mentioned problems of the prior art, and applied a magnetic field generated by appropriately controlling energization of an electromagnetic solenoid to a magnetic material (iron ball). The present inventors have found that the magnetic material can be accelerated without contact, and have reached the present invention.

That is, according to the present invention, a magnetic substance is arranged in one opening of an electromagnetic solenoid having both ends opened, and the magnetic substance is drawn into the solenoid by instantaneous energization of the solenoid, and the current flowing before the magnetic substance passes through the solenoid is reduced. To prevent the magnetic body from moving backward and to obtain a predetermined speed at the launch port side. Since a magnetic movable element is not required unlike the conventional apparatus, the structure is simple, wear and the like can be greatly reduced, and a quiet launch apparatus with high reliability, long life, and low noise can be obtained.

The launching device according to claim 2 is claim 1.
The discharge of the electric charge charged in the capacitor is used as the solenoid drive current source of the launching device of the present invention. There is an advantage that a large load is not required for the power supply source because the force can be applied and the discharge charge is temporarily stored in the capacitor.

According to a third aspect of the present invention, there is provided a launching apparatus.
The amount of electric charge stored in the capacitor is adjusted by controlling the charging voltage for the adjustment of the electromagnetic force applied to the magnetic material of the launching device, and has the advantage that it can be electrically precisely adjusted.

[0008] The launching device according to claim 4 is claim 2.
The adjustment of the electromagnetic force applied to the magnetic material of the launching device is performed by controlling the discharge time of the electric charge stored in the capacitor, and has the advantage that the electrical precision can be adjusted.

According to a fifth aspect of the present invention, in the launching apparatus of the second aspect, the firing cycle of the magnetic material is controlled by adjusting the charging time of the capacitor. Time constant τ determined from the resistance r of the charging circuit and the capacitance C of the capacitor
= Cr to change the electric resistance r of the charging circuit.

The launching device according to claim 6 is claim 1.
In the launching device of No. 5, the launching cycle of the magnetic material can be electronically set and controlled, and can be realized by various electric timer devices.

The launching device according to claim 7 is the launching device according to claim 5, wherein the saturation charge time of the capacitor is 0.6.
The charging circuit is configured to be longer than the second. The time constant of the charging circuit is represented by τ = Cr, but the saturation charging time can be set to 0.6 sec or more by a combination of the capacitor C and the charging circuit resistance r. 0.6 sec
Reflects the regulation of 100 launch cycles per minute for public gaming machines.

[0012] The launching device according to claim 8 is claim 1 to claim 1.
7 is characterized in that the firing speed of the magnetic body is adjusted by changing the relative position between the opening of the solenoid and the magnetic body. That is, the force with which the magnetic substance is drawn into the solenoid rapidly decreases as the distance between the solenoid and the magnetic substance increases. Also, the electromagnetic force changes when a magnetic body is previously arranged in the solenoid. The position at which the electromagnetic force that pulls the magnetic material into the solenoid is the strongest depends on the shape of the solenoid and the conditions of the coil winding, but with a general solenoid, the position where the tip of the magnetic material slightly enters the magnetic material supply port side of the solenoid Often a relationship.
In this case, for example, a positioning member for the magnetic body is arranged on the magnetic body supply port side of the solenoid so that the magnetic body can be set at a position where the magnetic body slightly enters the solenoid. The magnetic material may be supplied from the launch port side. In the case where the solenoid is disposed in a vertical position or a position close to the vertical position, the magnetic body may be dropped from the firing port side to the set position.
By utilizing such characteristics, the electromagnetic force acting on the magnetic material can be mechanically adjusted to control the firing speed.

According to a ninth aspect of the present invention, in the launching apparatus of the third aspect, the charging voltage generates a random variation within a range of ± 20%, and the range of the variation can be set arbitrarily. Such means are for example 0 to
A number from 0 to 99 can be generated by two random number generators up to 9, and a random variation can be electrically generated within a variation range. Such a function is particularly important in a game machine.

[0014] The launching device according to claim 10 is claim 4.
The discharge time (which means that the discharge current is cut off) can be set arbitrarily and the range in which the discharge current is changed can be set arbitrarily so as to generate a random change in the firing speed in a range of ± 20% in the firing device of the present invention. Things.
The same effect as that of the launching device according to claim 9 can be obtained.

[0015] The launching device according to claim 11 is claim 1.
In the firing devices of (10) to (10), the discharge current change accompanying the electric resistance change due to the heat generation of the solenoid is detected directly or indirectly by the repeated discharge, the charging voltage is controlled, the discharge current is made constant, and the magnetic force (magnetic force is generated by the solenoid coil Magnetic field, that is, the product of the product of the number of windings per unit length and the current flowing through the coil and the product of the gradient of the magnetic field at the point where the magnetic material is located). There is no inconsistency with the function of the launching device of claims 9 and 10.

[0016] The launching device according to claim 12 is claim 1.
In the launch devices of Nos. 1 to 11, the basic launch speed of the magnetic sphere, the random variation range of the launch speed, and the control range of the launch cycle can be set, and the operator can change within the control range. Such a function is particularly required in a gaming machine.

The launching device according to claim 13 is claim 2.
In the launching devices of (1) to (12), the solenoid coil has a plurality of structures and a plurality of charge / discharge circuits corresponding to the structure, and the inductance-induced current after the main discharge of a predetermined coil is accumulated in the capacitor of another charge / discharge circuit. In addition, the shortage is replenished and alternately charged and discharged. Usually, the discharge current induced by the inductance is effectively lost as Joule heat, and has an effect of reducing power consumption.

The launching device according to claim 14 is claim 1.
In the firing devices of (13) to (13), at least the inner surface side of the opening of the solenoid coil winding which is in contact with the magnetic material is made of non-magnetic high-hardness ceramics to increase wear resistance. As a result, the number of repetition cycles can be greatly increased, and a highly reliable launch device can be obtained.

The launching device according to claim 15 is claim 2.
When the electrical resistance of the LCR series discharge circuit system is R, the inductance is L, and the capacitance of the capacitor is C, the circuit constant is set so as to satisfy the following conditional expression, and the discharge characteristics of critical or over-attenuated are as follows: It is characterized by.

[0020]

(Equation 1)

In the above equation (Equation 1), when the sign is equal, critical vibration occurs, and when the sign is not equal, damped vibration occurs. In the case of an inequality sign opposite to the above equation (Equation 1), excessive vibration occurs, and the discharge current waveform becomes in a vibration damping state, so that an extra electric element such as a diode for reverse current bypass is required.

A launching device according to claim 16 is claim 1.
In the launching devices of (1) to (15), the magnetic material is spherical and can easily roll and be positioned at the opening of the solenoid.

A launching device according to claim 17 is claim 1.
In the launching devices of (1) to (16), the magnetic material has a non-magnetic portion, and when a part of the sphere is non-magnetic, the point of application of the electromagnetic force and the center of gravity are different, and a rotating motion can be obtained. The magnetic material may have a non-magnetic support and a rudder portion at the front end or the rear end.

The launching device according to claim 18 is claim 1.
In the launching devices of Nos. 6 and 17, the solenoid is arranged vertically and the spherical magnetic body can be automatically positioned by its own weight in opposition to the lower opening of the solenoid. Such a structure can be easily realized by inclining the supply portion of the spherical magnetic material, and does not require a special supply device.

The launching device according to claim 19 is claim 1.
In the 6 and 17 launchers, the solenoids are arranged diagonally or horizontally and the launch direction (generally upward) from the launch port side
And a guide for guiding the magnetic ball. With such a structure, a limited space such as a device including a launch device, for example, a game machine can be effectively used.

[0026] The launching device according to claim 20 is claim 1.
6 to 19 launchers. A magnetic sphere that has been fired upward falls on a slope and rolls, and is collected at the bottom of the firing device, automatically supplied to the firing device, and can be repeatedly fired, collected, and supplied. The present invention can also be applied to a display for continuously firing and collecting a body in a fountain shape.

The launching device according to claim 21 is claim 1.
In any one of the first through fifth aspects, the flying magnetic body is made of a permanent magnet. For example, when a permanent magnet such as a ferrite magnet, a rare-earth magnet, or a bond magnet magnetized on a cylindrical NS is used, the magnetic force can be obtained many times as much as that when iron of the same size is used. However, if the polarity of the magnetic field attracted by the solenoid and the polarity of the permanent magnet are not matched, a repulsive force is generated, and the object cannot be achieved.

The launching device according to claim 22 is claim 1.
In the launching apparatus of the present invention, when the flying magnetic material is a combination of a permanent magnet portion and a soft magnetic yoke that efficiently converges the magnetic flux of the permanent magnet, the magnetic field of the solenoid works effectively as compared with the case where the permanent magnet alone is used. It is possible to obtain a stronger electromagnetic firing force.

The launching device according to claim 23 is claim 1.
In any one of the firing devices of (1) to (17), the magnetic substance is dispersed in a powdery liquid material and stored in an elastic film. If such a flying object is, for example, one in which a liquid containing a fluorescent dye mixed with a soft magnetic powder is contained in a rubber-like film, it ruptures at the time of collision with an object and can dye the collision object.

The launching device according to claim 24 is claim 1.
7 is a launching apparatus using a flying magnetic body with a flexible string attached thereto. Such a flying object can be pulled back by pulling a string from the flight arrival point to the firing position.
Even such a long flying object does not hinder the flight at all because it travels straight through the center opening of the solenoid.

The launching device according to claim 25 is claim 2.
In the launching device of No. 4, the scale is marked on the string, so that the flying distance of the magnetic body can be easily measured.

The launching device according to claim 26 is claim 1.
In each of the firing devices of Nos. 1 to 25, the charging power source for the condenser is a dry battery. It is suitable for use in places where there is no commercial power supply, and can accumulate electric charge in a capacitor and then obtain a large instantaneous current by discharging.

The launching device according to claim 27 is claim 1.
In any one of the first to twenty-fifth launch apparatuses, the power supply for charging the condenser is a generator. In the case of the battery of the twenty-sixth aspect, there is a problem in the life. However, the battery can be omitted by storing the electric charge generated by the manual generator in a capacitor and using the electric charge.

The launching device according to claim 28 is claim 2.
6 and 27 are characterized in that they are portable because of their small size and light weight. Applicable to disaster rescue equipment.

The launching device according to claim 29 is claim 1
28 to 28, the launching device has a waterproof structure and can operate in various liquids including water. In particular, the projectile of the launching device of the present invention is electrically and mechanically independent of the launching device main body side and has a feature that both are easily insulated completely.

[0036] The launching device according to claim 30 is claim 1.
29 to 29 are characterized in that a permanent magnet is arranged in a magnetic material supply section in which a solenoid flies, and a magnetic material can be positioned by its attraction force. The permanent magnet to be placed acts as a negative force to the electromagnetic force to be emitted if the magnetic material is excessively attracted, so it is necessary to select an appropriate value that can stably position the magnetic material. There is an advantage that positioning can be performed.

The launching device according to claim 31 is the launching device according to any one of claims 1, 7 to 10, 12, 14 to 25, 29 and 30, and the power supply to the solenoid is a half-wave (50 Hz) of a general commercial power supply. 1/100 in case
Since the current supply time within sec) is controlled and used, there is an advantage that the capacitor can be omitted and the configuration of the electric circuit can be simplified. However, since the commercial power supply is temporarily used as it is, it is necessary to consider the capacity of the line power.

[0038]

BEST MODE FOR CARRYING OUT THE INVENTION The values of inductance and DC resistance of three types of solenoids produced by winding a plastic bobbin having an inner diameter of 12 mm and an effective length of 40 mm as shown in Table 1 are shown. The solenoid was placed vertically, an iron ball was placed in the lower opening of the solenoid, and the flying height of the iron ball was measured by an electromagnetic force induced by a discharge current of a capacitor of 9000 μF. In the experiment, the charging voltage of the condenser was changed, and an iron ball having a diameter of 10.98 mm and a weight of 6 g was used. Table 2 shows the results.

[0039]

[Table 1]

[0040]

[Table 2]

FIG. 1 shows a basic principle diagram of the present magnetic material emitting apparatus. The charge stored in the capacitor C from a charging circuit (not shown) is applied to a solenoid having an electric resistance R and an inductance L by turning on a switch (a solid switch such as a thyristor is generally used).
Flows as a discharge current. Under the conditions of Tables 1 and 2, the discharge current has a peak value I at a short time tm of several msec.
m. The value of Im is 70 depending on the specifications of the solenoid.
It becomes a value of several tens to 100 A at the time of V charging (84 A, 55 A
A) Decrease to 1/10 or less of the peak value in 20 to 30 msec. For example, in the case of coil No. 3, the peak current Im (55 A) is reached in about 1 msec, and the magnetic field at the center of the solenoid at this time is about half of this at the end of about 255000 A / m (3200 Oe). Accordingly, the iron ball placed under the solenoid is drawn into the solenoid by the generated electromagnetic force. At this time, the electromagnetic force acting on the iron ball is proportional to the product of the magnitude of the magnetization generated in the iron ball by the magnetic field applied to the iron ball and the gradient of the magnetic field toward the center of the solenoid. Cannot be obtained from the side. Therefore, it is necessary that at least the peak current arrival time has elapsed before the iron ball passes through the solenoid, and ideally, the iron ball is turned on by the solenoid when the discharge current has attenuated to about 1/10 of the peak current value. It is preferable to set the electrical constants L, C, and R of the discharge circuit that passes through the center.

This circuit constant is R ≧ 2√ (L / C)
By satisfying the condition (1), critical oscillation or damped oscillation occurs, and no backflow occurs in the discharge current waveform, and backflow prevention means and the like can be omitted. Since the peak value of the discharge current can be controlled by adjusting the charge voltage to the capacitor and changing the amount of charge stored, the electromagnetic force, that is, the firing speed of the iron ball can be adjusted. The same effect can be obtained even if the discharge current is cut off and controlled by an electric switch before the time Tm that reaches the peak current Im. Further, by adjusting the distance between the solenoid opening and the iron ball, the electromagnetic force acting on the iron ball can be adjusted, and thus the firing speed can be adjusted.

Further, the set value of the charging voltage can be intentionally randomly varied within a predetermined range by a known random voltage generating circuit.

For the charging time of the capacitor, various known electric charging circuits (details omitted) can be used, and the charging time is a time constant τ which is a product of the electric resistance r of the charging circuit (omitted) and the capacitance C of the capacitor. = Cr, the firing cycle of the iron ball can be adjusted by adjusting the electric resistance. The shortest charging time in the embodiment of Table 2 is about 10 from the relation of the output capacity of the power supply.
It was 0 msec. Further, when an electric resistance of 1 KΩ was added to the charging circuit, the saturation charging time was about 10 sec. In this way, an electric circuit configuration is possible in which the discharge switch cannot be turned on until the predetermined charging voltage is reached by adjusting the electric resistance of the charging circuit, and the upper limit of the firing cycle is set. Further, it is needless to say that the repetitive operation by the electronic timer can be set below the upper limit cycle.

In addition, when the electric resistance of the solenoid increases due to Joule heat generated by the repeated discharge, the resistance value increases and affects the discharge current. In other words, when the electromagnetic force acting on the iron ball is affected, the discharge current is directly or indirectly applied to the discharge circuit. Means for detecting a deviation from a set value by a detecting means (generally, generally using a terminal voltage of a low electric resistance connected in series with a discharging circuit) and adjusting a charging voltage so as to have a constant discharging current value. Can be taken.

Although the structure of the discharge circuit is complicated, the solenoid has a plurality of coils (a plurality of windings or a plurality of solenoids), and has a plurality of charge / discharge circuits corresponding thereto. It is also possible to provide a control circuit that accumulates the inductance-induced current in a capacitor of another charging / discharging circuit, further replenishes the shortage, and alternately charges / discharges. An example in which such a circuit configuration is used for controlling a fuel injection electromagnetic valve of an automobile engine is disclosed in, for example,
000-100621 and the like.

In this embodiment, the winding frame of the solenoid is made of polyacetal resin. However, when a large number of operations are required and wear occurs due to the contact between the flying magnetic body and the inner surface of the solenoid, at least the winding frame in contact with the magnetic body. Can be used as non-magnetic high hardness ceramics.

The flying magnetic body can take various shapes and configurations, but by making it a simple sphere, various types of positioning and recovery can be performed by utilizing rolling by gravity.

FIG. 3 shows an example in which the magnetic material emitting device of the present invention is applied to a display device. In the figure, reference numeral 1 denotes a firing solenoid (a power supply unit is omitted), and 2 denotes an iron ball, whose surface may be colored. Reference numeral 3 denotes a curved dish-shaped iron ball receiving member which is inclined toward the iron ball supply port at the bottom of the solenoid, and the iron balls emitted from the solenoid roll and automatically gather there. Reference numeral 4 denotes a permanent magnet, which may be arranged when accurate positioning of the iron ball is required. It is also possible to use a plurality of solenoids 1 so that iron balls collect on each solenoid. If a firing cycle is set, an iron ball fountain-like display device can be obtained. In addition, by making the cavity eccentrically inside the iron ball or a part of the iron ball a non-magnetic material, it is possible to make the point of action of the electromagnetic force different from that of the ball core so that the iron ball is rotated and fired.

FIG. 4 shows another application example in which the flying object comprises a magnetic member 2 'instead of an iron ball, a non-magnetic bar-shaped member 5 and a flexible cord-shaped member 6, and is set on the solenoid 1 as shown in the figure. . When fired by energization, if the string-shaped member 6 is longer than the flight distance, the rest will remain at the firing position. By setting a scale on the string, the approximate reach distance can be confirmed. The magnetic member 2 'can be a permanent magnet to increase the firing force. Although vertical magnetization is effective in the figure, a soft magnetic yoke member can be attached to the permanent magnet to converge the magnetic flux and obtain a stronger electromagnetic force. Of course, the efficiency can be increased by covering the outer periphery of the solenoid with a magnetic yoke. Such a launching device is effective as a life-saving device or the like.

In the launching apparatus of the present invention, the flying magnetic body and the launching apparatus main body are completely independent of each other, so that it is easy to electrically and mechanically insulate them from the outside and operate in a liquid such as water. A launch device can also be realized.

Further, the magnetic material may be dispersed in a liquid material in the form of a powder and stored in the elastic film. Such a flying object, for example, if a liquid containing a fluorescent dye mixed with a soft magnetic powder is accommodated in a rubber-like film, ruptures at the time of collision with an object and can stain the collision object, which is effective for crime prevention and the like. Applicable.

In the above description, the description of the power supply for charging the capacitor is omitted, but a battery or a manual generator can be applied if the charging conditions are optimized. This means that a small-sized portable launch device is possible. For example, a typical electrolytic capacitor having a large capacity that requires the most space has an outer diameter of 35 mm and a length of 50 mm in the case of 10,000 μF. As a method of obtaining an instantaneous large current in place of the means for discharging the electric charge stored in the capacitor, the power supply is a method of controlling the energization time within a half-wave (1/100 sec in the case of 50 Hz) of a general commercial power supply. Can be omitted, the configuration of the electric circuit can be simplified, and there is an advantage that the launching device can be downsized. However, since the commercial power supply is temporarily used as it is, it is necessary to consider the capacity of the line power and the like. However, industrially effective means can be applied to all the various applications in the case of discharging the charge stored in the capacitor.

FIG. 5 shows an example of a block diagram of an electric circuit using the charging and discharging of the condenser of the launching apparatus of the present invention.

FIG. 6 shows a circuit example in which an electric circuit is specifically manufactured based on the block diagram of FIG.

The upper graph of FIG. 7 shows the discharge current characteristics of the electric circuit of FIG. When the firing switch S1 is turned on, a pulsed current flows through the solenoids (VAml, R16, L4). The graph below shows the current characteristic and the voltage change at VOUT measured synchronously.

[0057]

According to the launching apparatus of the present invention, since the electromagnetic force is directly applied to the iron ball by the solenoid to accelerate the iron ball, instead of hitting and firing the iron ball in the working part, the size and reliability are reduced. , A long-life, low-power-consumption magnetic material launching device can be provided.

[Brief description of the drawings]

FIG. 1 shows a basic structure of a magnetic material emitting device according to the present invention, showing a series LCR discharge circuit of a solenoid and a capacitor, and an electromagnetic force acting on a magnetic material ball.

FIG. 2 shows an example of a discharge current waveform of the discharge circuit of FIG.

FIG. 3 shows a fountain-like launching device in another example of the launching device of the present invention.

FIG. 4 shows an example of another launching device of the present invention.

FIG. 5 shows an example of a block diagram of an electric circuit using the capacitor charging / discharging of the launching apparatus of the present invention.

FIG. 6 shows an example of an electric circuit of the launching device of the present invention.

FIG. 7 is a discharge current characteristic of the electric circuit of FIG.

[Explanation of symbols]

 1: Launch solenoid 2: Iron ball (magnetic material) 3: Iron ball receiving member

Claims (31)

[Claims] A magnetic material is disposed in one opening of an electromagnetic solenoid having both ends opened, and the current is controlled before the magnetic material passes through the solenoid by drawing the magnetic material into the solenoid by instantaneous energization of the solenoid. A magnetic material launching device which prevents the magnetic material from moving backward and obtains a predetermined speed at the launch port side. 2. The magnetic launching device according to claim 1, wherein the current is supplied by discharging a charge charged in the capacitor. 3. The magnetic body emitting device according to claim 2, wherein the firing speed of the magnetic body is controlled by controlling a charging voltage of a capacitor. 4. The magnetic material emitting device according to claim 2, wherein the firing speed of the magnetic material is controlled by controlling the discharge time of the condenser. 5. The magnetic material emitting device according to claim 2, wherein the firing cycle of the magnetic material can be controlled by the charging time of the capacitor. 6. The firing cycle of the magnetic material is set electronically.
The magnetic material launching device according to claim 1, wherein the magnetic launching device can be controlled. 7. The saturation charge time of the capacitor is set to 0.6 s.
7. The magnetic material launching device according to claim 6, wherein the value is ec or more. 8. The magnetic body emitting device according to claim 1, wherein the firing speed of the magnetic body can be adjusted by a relative position between the solenoid opening and the magnetic body. 9. The magnetic material emitting device according to claim 3, wherein the set charging voltage is randomly generated within a variation range of ± 20%, and the variation range can be set arbitrarily. 10. The set discharge time is randomly generated within a range corresponding to a firing speed variation of ± 20%, and the variation range can be set arbitrarily.
The magnetic material launching device according to the above. 11. The method according to claim 1, wherein a discharge current change accompanying an electric resistance change due to heat generation of the solenoid is detected directly or indirectly in the repetitive discharge to control a charging voltage and to constantly compensate the discharge current. The magnetic material launching device according to any one of the above. 12. The magnetic body according to claim 1, wherein a control range of a basic firing speed and a firing cycle of the magnetic body can be set and an operator can change within the control range. Launcher. 13. A solenoid coil having a plurality of structures and a plurality of charge / discharge circuits corresponding thereto, and a current induced by inductance after main discharge of a predetermined coil is accumulated in a capacitor of another charge / discharge circuit. 13. The magnetic material emitting device according to claim 2, wherein the shortage is supplemented and charged and discharged alternately. 14. The magnetic body according to claim 1, wherein the solenoid has a winding frame, and at least the inner surface of the opening in contact with the magnetic body is made of non-magnetic ceramic. apparatus. 15. When the electric resistance of the discharge circuit system is R, the inductance is L, and the capacity of the capacitor is C, the discharge circuit system has a critically decay or overattenuation discharge characteristic satisfying the following conditional expression. The magnetic material launching device according to the above. R ≧ 2√ (L / C) 16. The magnetic body emitting device according to claim 1, wherein the flying magnetic body is spherical. 17. The magnetic body launching device according to claim 1, wherein the flying magnetic body has a non-magnetic portion. 18. The magnetic body emitting device according to claim 16, wherein the solenoid is arranged vertically and the spherical magnetic body can be arranged in a lower opening of the solenoid. 19. The magnetic body emitting device according to claim 16, wherein the solenoid is disposed obliquely or horizontally and has a guide for guiding the magnetic body ball in the firing direction from the firing port side. 20. The method according to claim 1, wherein the magnetic ball projected upward falls on a slope and rolls, is collected at a lower portion of the firing device, is automatically supplied to the firing device, and can repeatedly perform firing, collection, and supply. 20. The magnetic material emitting device according to claim 16, wherein: 21. The magnetic body emitting device according to claim 1, wherein the flying magnetic body is made of a permanent magnet. 22. The magnetic body launching device according to claim 1, wherein the flying magnetic body comprises a permanent magnet and a soft magnetic body. 23. The magnetic material launching device according to claim 1, wherein the flying magnetic material is dispersed in a powdery liquid material and stored in an elastic film. 24. The magnetic device according to claim 17, wherein the non-magnetic portion is a flexible string. 25. The magnetic material emitting device according to claim 24, wherein a scale is attached to the flexible string. 26. The magnetic device according to claim 1, wherein a power supply for charging the condenser of the device is a battery. 27. The magnetic material launching device according to claim 1, wherein the condenser charging power source of the launching device is a manual generator. 28. The magnetic body emitting device according to claim 26, wherein the launching device is portable. 29. The magnetic device according to claim 1, wherein the device has a waterproof structure and is operable in a liquid. 30. The magnetic material launching device according to claim 1, wherein a permanent magnet is arranged in the magnetic material supply section of the solenoid so that the magnetic material can be attracted and positioned. 31. The solenoid according to claim 1, wherein the energizing current of the solenoid is obtained by controlling an energizing time within a half-wave of a general commercial power supply. 3. The magnetic material launching device according to claim 1.