JPH0258944B2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> Unlike conventional rotary solenoids with a rotating element in the center, the present invention has a magnetic pole generating part that generates magnetic poles by energizing a coil, which is fixed to a mounting board. The drive source is an electromagnetic drive machine in which a cylindrical rotating body having a magnetic pole attracting member in the body is rotatably fitted on the outside of the stator to serve as a stator, and a rotating body is used as a rotor. This invention relates to an electric ball hitting device for a pachinko machine in which a firing rod is provided on a rotating element.

<Prior Art> In a so-called rotary solenoid ball launcher, the flight distance of a ball is adjusted by the strength of the magnetic force of an excitation coil. This magnetic force adjustment is performed by electrically adjusting the power supplied to the excitation coil of the rotary solenoid using a power variable function section.

<Problem to be solved by the invention> The power variable function section is composed of electrical components such as variable resistors, and the performance of these electrical components tends to vary slightly from component to component, and this individual difference itself is relatively small. difficult to avoid. Therefore, in conventional rotary solenoid ball launchers, even if they have the same circuit configuration, the standards for the power supplied to the coils may differ somewhat. For this reason, when it is incorporated into a pachinko machine, a problem arises in that the standard of the ball hitting strength, that is, the initial ball flight distance, differs depending on the pachinko machine. This inconvenience is an issue that must be resolved by factories that want to efficiently manufacture pachinko machines of the same quality and performance.

<Means for Solving the Problems> The present invention has been proposed in view of the above, and includes a stator fixed to a mounting board 3, which has a coil 8 that excites a magnetic pole generator 7 whose end portion is disposed on the outer circumferential side. 4, a cylindrical rotating body 20 that encloses the stator and is rotatable concentrically is fitted onto the stator, and a magnetic adsorption member 24 is attached to the body of the cylindrical rotating body at the end of the magnetic pole generating section. An electromagnetic drive machine A consisting of a rotor 5 arranged corresponding to
a firing rod 6 which is provided on the rotator of the electromagnetic drive machine and is capable of firing a ball waiting at a firing position 30 of the firing rail 29; The firing drive control means B includes a firing drive control means B that controls driving between a first state in which the firing rod waits at a ready position and a second state in which the firing rod is rotated to a firing position and fires a bullet. A power amplification circuit that amplifies power in accordance with the pulse output adjusted by the pulse generation circuit 48 that generates and the power variable function section 35 that adjusts the pulse output of the pulse generation circuit, and supplies the pulsed power to the coil. 54
and an initial ball flight distance setting circuit 55 that can variably set the initial pulse power to the coil by adjusting the resistance value of the variable resistor in advance.

<Function> In the burst drive control means B, when the pulse generation circuit 48 generates a pulse, the power variable function section 35 is set to the initial operation position with this pulse, and the power amplification circuit 54 amplifies this pulse and sends it to the coil 8. Provides pulsed power. Since there are individual differences in the performance of the electrical components that make up the power variable function unit 35 and the power amplification circuit 54, the variable resistors (for example, R ₂ , R ₃ ) of the initial ball flight distance setting circuit 55 are adjusted according to these individual differences. Adjust the resistance value. This adjustment substantially eliminates individual differences in electrical components. Therefore, the initial pulse power supplied from the power amplification circuit 54 to the coil 8 is made constant in all ball hitting devices, and therefore the initial output of the electromagnetic drive machine A is made the same, and as a result, the initial pulse power of each pachinko machine is The flight distance of the ball can be adjusted in the same way.

<Example> Hereinafter, an example of the present invention will be described based on the drawings.

The electric ball hitting device 1 includes a mounting board 3 that is attached to the lower part of the back surface of a frame-shaped front frame 2 of a pachinko machine, a stator 4 that is fixed to the mounting board 3 and becomes a magnetic pole when energized, and a stator 4 that is attached to the outside of the stator 4. An electromagnetic drive machine A consisting of a stator 4 and a cylindrical rotor 5 rotatably fitted concentrically is used as a driving source, and a ball is fired by rotation of a firing rod 6 fixed to the rotor 5. It is something.

The stator 4 is made of a magnetic material such as iron, and includes a magnetic pole generating section 7 with an end that becomes a magnetic pole placed on the outer circumferential side, and a magnetic pole generating section 7 that is excited to generate magnetic poles of an S pole and an N pole at the end. It consists of a coil 8 for generating , a fixed shaft 9 for fixing these to the mounting board 3, and the like.

According to the illustrated embodiment, the magnetic pole generating section 7 includes a disk-shaped side plate 11 formed at one end of a cylindrical boss 10, and a magnetic pole generating piece slightly shorter than the boss 10 extending from the outer peripheral edge of the side plate 11. 12a, 12b, 12c respectively
A first magnetic pole generating member 13 extending horizontally at three locations at 120 degree intervals and a second magnetic pole generating member 13' having the same configuration as the first magnetic pole generating member 13 are connected to both magnetic pole generating pieces 12a and 12d, 12b, 12e, 12c
and 12f are combined in a substantially cylindrical shape so as to face each other.
f' are opposed to each other with a distance l, and a space 14 for accommodating the coil 8 is formed around the bosses 10 and 10'. Note that when the end surface of one boss 10' is formed into a convex shape and the end surface of the other boss 10 is formed into a concave shape and they are fitted together, the first magnetic pole generating member 13 and the second magnetic pole generating member 1
3' can be reliably joined at a predetermined position.

The coil 8 is made by winding a conducting wire, and in the illustrated embodiment, all the magnetic pole generating pieces 1 are connected to each other by a single coil.
2a, 12b, .
to be contained within. Note that the coil 8 may have any configuration as long as it can excite the magnetic pole generating section 7 by energization, and may be provided for each magnetic pole generating piece 12, or may be provided for each of the bosses 10, 10' as in the embodiment.
It can also be wound along the length of the boss 1.
It may be wound radially from 0,10'.

In order to fix the coil 8 and the magnetic pole generating section 7 to the mounting board 3, the bosses 10 and 1 of the magnetic pole generating section 7 are fixed.
A fixed shaft 9 is inserted into the fixed shaft 9, and an adjustment spacer 17 is screwed into a male threaded portion 16 formed at one end of the fixed shaft 9. Then, attach the tip of the male threaded portion 16 to the mounting board 3.
is inserted into the shaft hole 18 of the mounting board 3, and a tightening nut 19 is screwed onto the tip of the male threaded part 16 protruding from the mounting board 3 to fix it. In the illustrated embodiment, the fixed shaft 3 is passed through the magnetic pole generating section 7, but independent shafts may be provided on both sides of the magnetic pole generating section 7, and the fixed shaft 3 may be fixed by these shafts.

The rotor 5 which rotates along the outer peripheral surface of the stator 4 formed as described above has a cylindrical rotating body 20 rotatably provided outside the stator 4 so as to enclose the stator 4. A magnetic attraction member is disposed on the body of the rotating body 20 so as to correspond to the portion that becomes the magnetic pole of the magnetic pole generating section 7, that is, the end portions facing each other on the outer circumferential side. In the illustrated embodiment, disks 22 and 22' having a diameter slightly larger than that of the magnetic pole generating section 7 are rotatably attached to fixed shafts 9 protruding from both sides of the magnetic pole generating section 7 by bearings 23 and 23, respectively. support,
Three magnetic adsorption plates 24a, 24 made of magnetic adsorption material such as iron are arranged at intervals between the outer peripheral edges of both discs 22, 22'.
b, 24C to the three pairs of ends 12a' and 12d', 1
Correspond to 2b' and 12e', 12c' and 12f', respectively.
Erect it at 120 degree intervals and secure it with screws 25 etc.
In the remaining portion, protective side plates 26a, 26b, 26c made of a non-magnetic material such as synthetic resin are fixed to screws 25, etc., and a cylinder is provided that encloses the stator 4 and can rotate concentrically with the stator 4. A shaped rotating body 20 is configured.

Note that the distance between the inner surfaces of the magnetic adsorption plates 24a, 24b, and 24c and the outer surface of the magnetic pole generating section 7 is desirably close enough that they do not come into contact with each other.

In addition, in the illustrated embodiment, the magnetic adsorption plate 2
4a, 24b, 24c and protective side plates 26a, 26
b and 26c are fixed alternately in the circumferential direction to constitute the body of the cylindrical rotating body 20. However, the cylindrical protective side plate made of a non-magnetic material is used as the body of the cylindrical rotating body 20, and this Magnetic adsorption plates 24a, 24b, and 24c may be fixed to the inner or outer surface of the protective side plate.

In FIG. 2, reference numeral 27 denotes an arcuate long hole formed in the disk 22, and the conductor 8' of the coil 8 passed through the conductor take-out hole 28 formed in the magnetic pole generating section 7.
This is a hole for penetrating the rotor 5, and has an appropriate length that does not cause any problem even when the rotator 5 rotates. This long hole 27
A notch may be provided instead of opening a hole.

The firing rod 6 that launches the ball has a resilient portion 6' made of an elastic body at its upper end, and its base end is fixed to the rotator 5.
It is configured to rotate integrally with the rotating element 5.

In the illustrated embodiment, the base end of the firing rod 6 is fixed to the disk 22 on the mounting board 3 side with a screw 25', but it is formed integrally with one of the magnetic adsorption plates, for example 24a, so that the entire structure is It may be L-shaped, with the vertical part of the L-shape serving as the firing rod 6 and the horizontal part serving as the suction plate 24a. By integrally molding the suction plate 24 in this way, both can be attached and detached in one operation. That is, by screwing the left and right ends of the suction plate 24 to the discs 22, 22', the firing rod 6 can be firmly fixed.

As described above, since the firing rod 6 in the present invention is fixed to the cylindrical rotating body 20, the length can be made shorter than that fixed to the output shaft of a conventional rotary solenoid. Therefore, lateral vibration during rotation can be extremely reduced, and defective firing such as uneven skipping caused by lateral vibration can be eliminated. In addition, since the force of the rotator 5 can be applied efficiently to the firing rod 6, in other words, the point of force can be brought closer to the springing part 6', which is the point of application, so that the same strength can be applied according to the principle of leverage. Even with magnetic force, it is possible to obtain a stronger elastic force compared to a conventional rotary solenoid that rotates around the center.

In order to attach the ball hitting device 1 constructed as described above to a pachinko machine, as shown in FIG. 30 so that the mounting board 3 faces the specified position on the back side of the front frame 2, and then tighten the screws 2
5'', etc. To adjust the firing part 6' of the firing rod 6 to enter the center of the firing position 30, use the adjustment spacer 17 and nut 19 of the fixed shaft 9.
is rotated appropriately to change the distance between the mounting board 3 and the rotator 5, and adjust the position of the firing rod 6.

The rotation angle of the firing rod 6 is determined from the rear firing preparation position (the first state shown by the solid line in FIG. 4) to the front hitting ball firing position (the second state shown by the chain line in FIG. 4) using the center of the fixed shaft 9. A temperature of about 30 degrees is best. The rotation angle of the firing rod 6 is regulated by stoppers 31a and 31b implanted on the mounting board 3. In order for the firing rod 6 to rotate back and forth between the firing preparation position and the ball firing position, when the firing rod 6 is located at the ball firing position, the end of the magnetic pole generating portion 7 of the stator 4 The position of the magnetic pole generating part 7 is determined in advance so that the center lines of the magnetic adsorption plates 24a, 24b, 24c provided correspondingly to the parts 12a', 12b', etc. coincide with the radial straight line from the fixed shaft 9. and suction plates 24a, 24b, 2
Adjust the position with 4c. Further, at the firing position, the firing rod 6 is stopped with a slight backward inclination. In addition, when the firing rod 6 is located at the firing preparation position, it is desirable that the end of the magnetic pole generating section 7 and the magnetic adsorption plate partially overlap.

Next, the operation of the electromagnetic drive machine A will be explained.

When a player operates the ball hitting operation section 32 provided at the lower right side of the pachinko machine, a coil 8 connected via a lead wire from a bounce drive control means (to be described later) is activated.
A pulse with a constant width is supplied to the coil 8, and the coil 8 is excited. As a result, the magnetic pole generating portion 7 is magnetized, and a magnetic pole is generated at each end portion 12a', 12b', 12c', . . . of each magnetic pole generating piece 12a, 12b, 12c, . For example, the adjustment spacer 17 side of the stator 4 is N
If it is a pole, the other end becomes an S pole, and the magnetic flux coming out from the N pole is at the end 1 of the magnetic pole generating pieces 12a, 12b, 12c.
2a', 12b', and 12c', respectively, and the ends 12 of the other magnetic pole generating pieces 12d, 12e, and 12f.
S poles are formed at d', 12e', and 12f', respectively. Therefore, the end 12a' (N pole) of the magnetic pole generating piece 12a
and ends 12d' (S pole), 12b' (N pole) and 12e' (
S
A strong magnetic field is generated between 12c' (N pole) and 12f' (S pole), and the corresponding magnetic attracting plates 24a, 24b, and 24c are immediately attracted to each other. The rotating element 5 rotates due to the attractive force of this magnetic force, and the firing rod 6 rapidly rotates from the firing preparation position (first state) to the ball firing position to hit the ball at the firing position 30 ( (transformed into the second state).

When the firing rod 6 rotates to the ball firing position, the pulse power supply to the coil 8 disappears and the coil 8 is demagnetized, so that the ends 12a', 12b'... The magnetic field disappears. Therefore, the firing rod 6 rotates back due to the reaction of the bullet and its own weight, and returns to the firing preparation position. In addition, in order to ensure that the firing rod 6 returns to its original position and to make the next shot stable, the firing rod 6 may be slightly biased toward the firing preparation position using a weak spring or the like.

Then, when the next pulse is supplied to the coil 8, the magnetic pole generator 7 is excited again. Thereafter, by repeating this process, balls are fired intermittently.

In the present invention, the ball is hit as described above, but in order to start or end the ball hitting motion or adjust the firing force, when operating the ball hitting operation section 32 provided on the front of the Pachinko machine, This is done electrically by the firing drive control means B that is activated.

This firing drive control means B operates between a first state in which pulse power is supplied to the electromagnetic drive machine A and the firing rod 6 is on standby at a firing preparation position separated from the firing position, and a first state in which the firing rod 6 is rotated to the firing position. A control circuit 33 that controls the drive to the second state of firing, a switch function section 34 that is provided in conjunction with the batting operation section 32 and sends a start command to the control circuit 33, and a pulse power supply to the electromagnetic drive machine A. It consists of a power variable function section 35 that adjusts and subtracts power.

The ball-hitting operation section 32 shown in FIG. 5 has an operation lever 39 rotatably provided between a front handshake member 36 and a rear handshake member 38 having a cylindrical holding part 37.
The operating lever 39 is biased counterclockwise by a spring 40, and the base end of the holding portion 37 is brought into contact with the front surface of the mounting board 3, and is fixed from the rear surface of the mounting board 3 with screws 41. . A micro switch 34' is provided as a switch function part 34 inside the rear handshake member 38, and a pressing piece 42 protruding from the back side of the operating lever 39 is made to face the operating protrusion of the micro switch 34'. This microswitch 34' is always in an open state (OFF) because the pressing piece 24 presses the operating protrusion under the bias of the spring 40. When the player turns the operating lever 39 clockwise against the bias of the spring 40, the pressing piece 42 separates from the operating protrusion, and the micro switch 34' changes from the open state (OFF) to the closed state ( ON) and
A start command is sent to the control circuit 33 via the lead wire.

Note that the switch function section 34 is not limited to the above-mentioned micro switch 34', but may be any type of switch that switches (ON-OFF) in conjunction with the player's operation of the batting ball operation section 32. It can also be a configuration. For example, the surface of the front handshake member 36 is plated with chrome to provide electrical conductivity, a lead wire 43 is wired to the front handshake member 36, and the lead wire 43 is connected to the touch detection circuit 44, so that the player can control the ball hitting operation section 32. When the front handshake member 36 is touched, the touch detection circuit 44 may be switched on and send an activation command to the control circuit 33.

In addition, the ball-hitting operation section 32 shown in FIG.
Variable resistor 3 functioning as power variable function section 35
The rotating shaft 35a' of the variable resistor 35' is connected via a cylindrical connecting member 46, and the main body 35b' of the variable resistor 35' is fixed to the support protrusion 47 on the back side of the mounting board 3. Therefore, when the player rotates the operating lever 39 clockwise, the rotation shaft 35a' is interlocked, and the variable resistor 3
The resistance value of 5' can be changed in accordance with the amount of rotation of the operating lever 39. Variable resistor 35'
When the resistance value of the electromagnetic drive source A changes, the control circuit 33 connected via the lead wire increases or decreases the power supplied to the coil 8 of the electromagnetic drive device A according to the amount of operation of the operating lever 39. The output increases or decreases, thereby making it possible to change the launch force of the batted ball as appropriate.

In the above embodiment, the microswitch 34' and the variable resistor 35' are provided separately, but the microswitch 34' and the variable resistor 35' may be provided integrally. For example, a variable resistor with a built-in switch that is turned on and off by the rotation of the rotation axis can be connected to the shaft 45 of the operating lever 39.
may be connected to. When such a variable resistor with a built-in switch is used, there is no need to provide a pressing piece 42 on the operating lever 39, and the ball-striking operating section 32 can be just an operating lever or an operating dial with restoring force. , the structure of the ball hitting operation section 32 can be extremely simplified. Therefore, the assembly work at the assembly factory is also simplified.

In addition, a ball-hitting operation section 32 and a power variable function section 35
is not limited to a rotating type, but may be a sliding type. For example, as shown in FIG. 6, a handle 32' is provided on the front of the pachinko machine as a ball-striking operation section 32 so as to be movable in the horizontal direction.
The handle 32' may be connected to a sliding portion 35a'' of a sliding variable resistor 35'' and biased in one direction (to the left in FIG. 6) by a return spring 40. A micro switch 34' is provided at one end of the movement range of the handle 32'.
When 2' is released, the bias of the spring 40' presses the operating protrusion of the micro switch 34', turning it OFF.
state, or when the player moves the handle 32' even slightly against the bias of the spring 40'.
Switch to ON state. In this way, not only can the firing force be adjusted, but also the firing force can be visually observed quantitatively depending on the position of the handle 32'. can be immediately set to its original state. Note that it is more effective to provide a scale to indicate the position of the handle 32'.

As shown in FIG. 7, the control circuit 33 includes a switch function section 34, for example, the micro switch 3
4', the pulse repetition frequency can be adjusted by a pulse number variable section 49, and a pulse width setting device 50.
The pulse width can be set by Such pulse generators are already known,
For example, configure a timer using NE556 and its CR
This can be obtained by adjusting the time constant using a variable resistor. 51 is a rectifier bridge connected to a 24 volt alternating current power source via a plug 52, and 53 is a smoothing circuit capacitor. One conductor of the coil 8 is connected to this rectifying and smoothing circuit, and the other conductor is connected to a power amplification circuit 54 consisting of Darlington-connected transistors, a resistor R ₁ ,
It is grounded via an initial ball flight distance setting circuit 55 formed by connecting variable resistors R ₂ and R ₃ in parallel.
Note that 56 is a free-hold diode.

The base of the transistor constituting the power amplifier circuit 54 is connected to the output terminal of the pulse generating circuit 48 via a variable resistor 35' serving as the power variable function section 35.

Therefore, when the player turns the operating lever 39 of the ball-hitting operating section 32 to close (ON) the micro-switch 34', the micro-switch 34' closes (ON).
Pulse generating circuit 48 receives a start command from 4'
starts. Note that when the touch detection circuit 44 is provided, when the player touches the front handshake member 36 of the ball hitting operation section 32, the touch detection circuit 44 closes and starts the pulse generation circuit 48.

When the pulse generation circuit 48 starts, the setting device 49
A pulse is generated with the repetition frequency and pulse width determined by , and 50, and is input to the power amplifier circuit 54 via the variable resistor 35'. Therefore, the variable resistor 3 corresponding to the rotation angle position of the operating lever 39
The transistor of the power amplifier circuit 54 operates with a base current corresponding to the resistance value of the resistor 5', and power can be supplied to the coil 8 with a power pulse corresponding to the base current. Therefore, the coil 8 excites the magnetic pole generator 7 according to the amount of rotation of the operating lever 39. That is, the more the player turns the operating lever 39, the stronger the electric power is applied to the coil 8, and therefore the magnetic pole generating pieces 12a, 1
2b, 12c and magnetic adsorption plates 24a, 24b, 24
The adhesion force with c is strengthened, the torque of the rotator 5 increases, and the launch force of the ball is increased, thereby extending the flight distance of the ball.

The flight distance of the ball needs to be stable when the operating lever 39 is held at a desired angle. However, the current flowing through the transistor increases as the temperature rises, and the power supplied to the coil 8 changes. In order to compensate for this change, in this embodiment, the variable resistor 3
5', an appropriate number of semiconductor diodes are inserted in series in the forward direction as a constant power stabilizing circuit. This is because the internal resistance of a semiconductor diode generally increases as the temperature rises, which acts to suppress the input current to the next stage transistor circuit. It is clear that variations in the current or voltage of the pulsed power applied to the coil 8, or both, affect the flight distance of the ball, and the diodes 57 comprehensively compensate for these variations. Therefore, the circuit portion including the diodes 57 functions as a constant power stabilizing circuit. Note that this constant power stabilizing circuit may have any configuration as long as it comprehensively compensates for fluctuations in the current and voltage of the pulsed power applied to the coil 8, and in addition to the above-mentioned diode, it may be configured using a thermistor or the like with positive characteristics. may be configured.

In addition, even if the control circuit 33 has the same circuit configuration, there are differences in the electrical components such as transistors, capacitors, and resistors used, so the standards for the power supplied to the coil 8 are slightly different, and the power supplied to the pachinko machine differs. When installed in a pachinko machine, the standard of ball hitting strength, that is, the initial ball flight distance may differ somewhat depending on the pachinko machine. Therefore, the control circuit 33 shown in FIG.
In the embodiment, the initial ball flight distance setting circuit 5
Variable resistors R ₂ and R ₃ are provided as 5, and the resistance values of these variable resistors R ₂ and R ₃ can be adjusted. By adjusting the resistance values of variable resistors R ₂ and R ₃ , we get
Individual differences in electrical components such as transistors, capacitors, and resistors are substantially eliminated, and as a result, the initial pulse power to the coil 8 is adjusted, making it possible to adjust the initial flight distance of the ball. As a result, in the assembly factory, the initial ball flight distance of each pachinko machine can be adjusted to a predetermined distance by simply adjusting the resistance values of the variable resistors R ₂ and R ₃ .

Therefore, the pachinko machine assembled in this manner allows the player to adjust the flight distance of the ball to the desired distance with the same feeling no matter which pachinko machine the player plays.

The control circuit 33 also includes a pulse number variable section 4.
9 is connected, so if the operation section of the pulse number variable section 49 is provided on the front of the pachinko machine, the player can control the pulse generation circuit 4 by operating the operation section.
By increasing or decreasing the number of pulses of 8, the number of ball launches can be appropriately controlled.

As described above, by operating the ball-hitting operation section 32, the player can start a ball-hitting motion and adjust the flight distance of the ball. Furthermore, by operating the operation section of the pulse number variable section 49, the number of balls hit per unit time can be adjusted.

The ball hitting device can hit balls supplied to the firing position 30 one after another in response to the above operation of the ball hitting operation section 32 by the player. Then, a supply device supplies balls one by one to the empty firing position 30 in synchronization with the firing operation of the firing rod 6.

The balls thrown into the saucer 58 on the front of the pachinko machine are
The guide gutter 61 is arranged in a line by the lead-out gutter 59 connected to the saucer 58 and flows from the inlet port 60 of the front panel to the guide gutter 61.
flow down inside. At the downstream end of the guide trough 61, a flow prevention part 63 of a ball sending member 62 provided facing the firing position 30 of the firing rail 29 faces so as to be movable forward and backward. The ball feeding member 62 is rotatably supported by a shaft, and normally uses its own weight to lower the flow prevention portion 63 into the flow path of the guide trough 61 and stop it there. Therefore, the saucer 58
The tip of the ball that has flown down from the guide gutter 61 is prevented from flowing down by the flow prevention part 63 and stops at the lower end of the guide gutter 61.
Below the ball feeding member 62, there is an inverted L having a substantially horizontal protrusion 64 that abuts the lower end of the ball feeding member 62.
A letter-shaped feed arm 65 is pivotally supported, and a hanging portion 66 of this arm 65 comes into contact with a hook-shaped rod 67 provided on the firing rod 6 in a detachable manner. and,
When the firing rod 6 is in the firing preparation position, the rod 67 rotates the feed arm 65, as shown in FIG. When the sending arm 65 rotates, the protrusion 64 rotates to push up the ball sending member 62, so the flow prevention part 63 retreats upward and is removed from the first ball. Therefore, the first ball rests on the ball receiving part 68 that projects laterally from the lower part of the ball sending member 62, and is prevented from flowing down by the upper edge of the delivery port 69.
Stop. In this state, when the firing rod 6 rapidly rotates toward the firing position and the rod 67 separates from the feed arm 65, the feed arm 65 returns and rotates due to its own weight, and the protrusion 64 descends. When the protrusion 64 descends, the ball sending member 62 rotates back down the ball receiving portion 68 due to its own weight and the weight of the first ball. When the ball receiver 68 descends, the first ball descends and is released from the upper edge of the outlet 69, so that this ball falls from the outlet 69 onto the launch rail 29.
A firing position 30 is provided. Note that when the ball receiving part 68 descends, the flow-down prevention part 63 also lowers, so that the next ball is prevented from flowing down by the flow-down prevention part 63 and stops. Then, when the firing rod 6 returns to the firing preparation position, the rod 67 moves the feed arm 6.
Since the ball sending member 62 is rotated by rotating the ball 5, the ball released from the flow prevention part 63 waits on the ball receiving part 68 in the same manner as described above. Thereafter, by repeating this process, one ball is supplied to the firing position 30 each time the firing rod 6 is fired.

In addition, in the above-mentioned ball supply operation, there is no need for a driving force to raise the ball, and the member that prevents the ball from flowing down is simply advanced or retreated, so that when the firing rod 6 returns to its original position due to its own weight, It can be easily operated by force. Further, when the firing rod 6 performs a firing operation, the feed arm 65 is simply released, so that the driving force of the rotator 5 can be effectively used as the elastic force of the ball without wasting it. Furthermore, even if the firing rod 6 fires at a high speed of about 100 rounds per minute, the next ball can be supplied immediately after the ball at the firing position 30 is fired, so the firing rod 6 can supply the next ball immediately after the ball at the firing position 30 is fired. By the time the ball starts, the ball has stopped at the proper position of the firing position 30. Therefore, the direction and flight distance of the ball can be stabilized.

<Effects of the Invention> As explained above, according to the present invention, there are individual differences in electrical components such as resistors that constitute the elastic drive control means of the electromagnetic drive machine, and therefore, the initial resistance to the coil of the electromagnetic drive machine is Even if the pulse power slightly differs from ball hitting device to ball hitting device, by finely adjusting the resistance value of the variable resistor of the initial ball flight distance setting circuit in advance, individual differences in electrical components can be substantially eliminated.
Therefore, in an assembly factory, it is possible to make the initial ball flight distance uniform for all pachinko machines by simply fine-tuning the resistance value. Even in the case of a drive-type ball hitting device, the efficiency of adjusting the initial ball flight distance during assembly work can be improved. If the amount of operation of the firing control dial is the same,
Since the flight distance of the ball is stable regardless of the pachinko machine, it is possible to eliminate the feeling of discomfort in adjusting the flight distance of the ball when the player moves the pachinko machine to another machine. Therefore, it is possible to easily correct the variation in the initial ball flight distance, which has been a drawback of the conventional rotary solenoid type ball hitting device, at the factory assembly stage.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a perspective view of the electric ball hitting device seen from the back side of the front frame;
Fig. 2 is an exploded perspective view of the stator and rotator, Fig. 3 is a vertical cross-sectional view of the stator and rotator, Fig. 4 is a cross-sectional view of the same, and Fig. 5 is an exploded perspective view of the ball-hitting operation section. , FIG. 6 is a plan view of another embodiment of the ball-striking operating section, FIG. 7 is a block diagram of the spring drive control means, and FIGS. 8 to 10 are front views of the ball supply mechanism. In the figure, 1 is an electric ball hitting device, 3 is a mounting board, 4 is a stator, 5 is a rotator, 6 is a firing rod, 7 is a magnetic pole generator, 8 is a coil, 20 is a cylindrical rotating body, and 24 is magnetic 29 is a firing rail, 30 is a firing position, 32 is a batting operation unit, 33 is a control circuit, 34 is a switch function unit, 35 is a power variable function unit, 48 is a pulse generation circuit, and 54 is a magnetic attraction plate as an attraction member. A power amplifier circuit, 57 a diode as a constant power stabilizing circuit, A an electromagnetic drive machine, and B an explosive drive control means.

Claims (1)

[Scope of Claims] 1. A stator having a coil for exciting a magnetic pole generator with an end disposed on the outer circumferential side and fixed to a mounting board;
A cylindrical rotating body that encloses the stator and can rotate concentrically is fitted onto the stator, and a magnetic adsorption member is arranged on the body of the cylindrical rotating body so as to correspond to the end of the magnetic pole generating section. an electromagnetic drive machine consisting of a rotator provided thereon; a launch rod that is provided on the rotor of the electromagnetic drive machine and capable of ejecting a ball waiting at a launch position on a launch rail; and a firing drive control means for driving and controlling the firing rod into a first state in which the firing rod is placed in a standby position at a firing preparation position separated from the firing position, and a second state in which the firing rod is rotated to the firing position and fires the bullet; The drive control means amplifies the power according to the pulse output adjusted by the pulse generation circuit that generates the pulse and the power variable function section that adjusts the pulse output of the pulse generation circuit, and applies the pulse power to the coil. A pachinko machine characterized by having a power amplification circuit for supplying power and an initial ball flight distance setting circuit that can variably set the initial pulse power to the coil by adjusting the resistance value of a variable resistor in advance. Electric ball hitting device.