JPS59183776A - Electromotive ball hitting apparatus of pinball machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Unlike conventional rotary solenoids in which the central part is a rotating element, the present invention has a magnetic pole generating part that generates magnetic poles when a coil is energized, which is fixed to a mounting board as a stator. The drive source is an electromagnetic drive machine in which a cylindrical rotating body having a suction plate in the body is rotatably fitted on the outside of the stator and used as a rotator,
A firing rod is provided on the rotor of the electromagnetic drive machine, and a power variable function section that adjusts the pulse output from the pulse oscillation circuit at least a little, and power is applied to the coil according to the pulse output from the power variable function section. The present invention relates to an electric ball hitting device for a pachinko machine in which the rotational movement and firing force of a firing rod are electrically controlled by a ball driving control means having a power amplification circuit.

A ball hitting device for a conventional pachinko machine using a rotary solenoid has at least a pair of magnetic poles fixed to the outside of a rotatable rotor located at the center, and these magnetic poles are energized. A field pole is formed by winding a coil, and the rotor at the center is rotated by a certain angle by magnetic force, and this rotational force is transmitted to the firing rod through the rotation axis of the rotor, and the firing rod is fired by rapid rotation of the rod. It involved hitting the ball at a certain position. This kind of configuration requires space in the center for the rotor to rotate, so if you try to increase the number of turns of the excitation coil to increase the generated torque, it will become significantly larger, and the larger the size, the higher the torque. It was difficult to obtain.

Furthermore, since the firing rod that fires the ball is connected to the rotating shaft of the rotor, the length of the firing rod becomes long. For this reason, lateral vibration is likely to occur during rotation, resulting in inconveniences such as uneven flight of the ball and unstable flight distance.

Furthermore, since the axis of the firing rod is the fulcrum, the outer periphery of the rotor is the point of force, and the springing part of the firing rod is the point of action, it is difficult to make the fulcrum and the point of force long enough to rotate efficiently. ,
Therefore, a large amount of electric power is required to obtain the desired torque.

Furthermore, as is well known, in a pachinko game, the player does not simply hit a large number of balls in succession, but also finely adjusts the firing force of each ball. In most conventional ball hitting devices using a rotary solenoid as a driving source, the firing force is adjusted by mechanically adjusting the rotation angle of the firing rod. However, adjusting by mechanical means in this way results in a complicated structure and makes assembly work at an assembly factory troublesome.

The present invention has been proposed in view of the above, and includes a stator in which a magnetic pole generator that becomes a magnetic pole when a coil is energized is fixedly provided on a mounting board, and a cylinder rotatably fitted on the outside of the stator. A magnetic adsorption plate is provided on a shaped rotating body in correspondence with the outer peripheral end of the magnetic pole generating part to serve as a rotator, and a firing rod is fixedly provided on the rotator to suppress the generation of magnetic poles that frequently occur when the coil is energized. The rotator and the firing rod can be rapidly rotated by the attraction between the end of the part and the magnetic adsorption plate to hit and launch the ball, making it possible to obtain a large hitting force while being small and lightweight. It is possible to perform a stable batting operation every month,
Moreover, the batted ball drive control includes at least a power variable function section that changes the pulse output of the pulse oscillation circuit, and a power amplification circuit that supplies power to the coil according to the pulse output whose intensity is changed by the power variable function section. It is an object of the present invention to provide an electric ball hitting device for a pachinko machine in which the rotational movement and firing force of a firing rod can be electrically adjusted by providing means.

The present invention will be explained below based on drawings of embodiments.

The electric ball hitting device l according to the present invention is fixed to a mounting board 3 attached to a lower part of the back surface of a frame-shaped front frame of a pachinko machine.
The driving source is an electromagnetic drive machine A consisting of a stator which becomes a magnetic pole when energized, and a cylindrical rotor S rotatably fitted on the outside of the stator so as to be concentric with the stator. , the ball is hit by rapid rotation of a firing lever provided on the rotator 5.

The one-to-one stator is made of a magnetic material such as iron, and includes a magnetic pole generating part 7 with an end that becomes a magnetic pole placed on the outer circumferential side, and an S pole and an N pole by exciting the magnetic pole generating part 7. It consists of a coil g for generating magnetic poles, 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 has a cylindrical boss /θ
A disc-shaped side plate /l is formed at one end, and magnetic pole generating pieces /co α, /27) and /coC, which are slightly shorter than the boss 10, are spaced 120 degrees apart from the outer periphery of the side plate //. A first magnetic pole generating member /3 extending horizontally at three locations, and the first magnetic pole generating member /3
Second magnetic pole generating member/3 having the same configuration as magnetic pole generating member/3
” and both magnetic pole generating pieces /ko α and /ko d, /, 2b and /
:1. e, /YC and 12f are combined so as to face each other, and are approximately cylindrical, and the outer circumferential side has ends located approximately in the center /2a' and 7.2d', /, 2b' and /, 2e'
, /C' and /21' face each other with a distance l, and the boss 10°1
A space /g for accommodating the coil g is formed around 0'. Note that when the end surface of one boss 10' is formed into a convex shape and the end surface of the other boss IO is formed into a concave shape and they are fitted -7-, the first magnetic pole generating member /3 and the second magnetic camellia generating member 73
′ can be reliably joined at a predetermined position.

The coil g is a winding of a conducting wire, and in the illustrated embodiment, all the magnetic pole generating pieces /, 2α, /2 are generated by a single coil.
The above-mentioned boss 10 is wound into a cylindrical shape so as to be able to excite b...
, 10' are inserted and accommodated in the space /4'. The coil g 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/unit, or it may be provided for each of the bosses 10, 10 as in the embodiment.
Even if it is wound along the length direction, the bosses 10, 1
It may be wound radially from 0'.

In order to fix such a coil band and magnetic pole generating section 7 to the mounting board 3, the boss io of the magnetic pole generating section 7 is fixed.

The fixed shaft 9 is inserted into the fixed shaft 10', and the adjustment spacer 7 is screwed into the male screw portion formed at one end of the fixed shaft 9. Then, the tip of the male threaded part /A is inserted into the shaft hole 7g of the mounting board 3, and the tightening nut /9 is screwed onto the tip of the male threaded part /A 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, but independent shafts are provided on both sides of the magnetic pole generating section 7, respectively.
It may be fixed by this shaft.

The rotor S, which rotates along the outer circumferential surface of the stator to be applied as described above, can freely rotate the cylindrical rotating body 20 by enclosing the stator on the outside of the stator. A magnetic adsorption plate is disposed on the body of the rotating body O in correspondence with 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, the fixed shaft 9 protruding from both sides of the magnetic pole generating section 7 includes a disk having a slightly larger diameter than the magnetic pole generating section 2.2. ．． 2.2' is rotatably supported by bearings 23, :13, etc., and three magnetic adsorption plates made of a magnetic material such as iron are placed between the inner circular plate and the outer periphery of 2.2.1'. ,2daα,,24(b,,1
4/c as the three pairs of ends/, 2a' and 7.2d', /,
1 corresponding to 2b' and /, 2e', Inc' and /if
They are installed at 20 degree intervals and fixed with screws, 2S, etc., and the remaining parts are covered with protective side plates made of non-magnetic material such as synthetic resin, ua, 2tb.
.

, 26c are fixed with screws, 23, etc., thereby forming a cylindrical rotating body 20 that encloses the stator and can rotate concentrically with the stator.

Note that it is desirable that the distance between the inner surfaces of the magnetic adsorption plates 1a, 21b, and 1g C and the outer surface of the magnetic pole generating section 7 be so close to the dust that they come into contact with each other.

In addition, in the illustrated embodiment, the magnetic adsorption plates λ are α, λ
The body of the cylindrical rotating body 20 was constructed by alternately fixing the protective side plates llb, cc and the protective side plates ``a'', ``ab'', and ``c'' in the circumferential direction. The protective side plate may be used as the body of the cylindrical rotating body 20, and magnetic adsorption plates Ia, :l'lb, and lQc may be fixed to the inner or outer surface of this protective side plate.

In Fig. 2, the core is a circular arc-shaped long hole opened in the disk 1, and a conductor take-out hole opened in the magnetic pole generation part 7, for passing the conductor g' of the coil passed through the inside of the magnetic pole generator 7. It is a hole and has an appropriate length that does not cause any problem even when the rotator S rotates. Instead of opening this elongated hole 27, a notch may be provided.

10- The firing rod t that shoots the ball has a resilient part 6' made of an elastic body at its upper end, and its base end is fixed to the rotator S so that it rotates integrally with the rotor S. It is.

In the illustrated embodiment, the base end of the firing rod 6 is fixed to the disk 2.2 on the mounting board 3 side with a screw J', but it may be fixed integrally with one of the magnetic adsorption plates, for example 2'la. The L-shaped vertical part may be the firing rod 6, and the horizontal part may be the suction plate 24Ia.

When integrally molded with the suction plate 24' in this manner, both can be attached and detached by one operation. That is, the suction plate 24/
The left and right ends of the disk are disks, 2.2. ．． By screwing 2.2', the firing rod can be firmly fixed.

In this way, the firing rod 6 in the present invention is a cylindrical rotating body, 2O
Since it is fixed to the output shaft of a conventional rotary solenoid, the length can be made shorter than that of a conventional rotary solenoid fixed to the output shaft. Therefore, lateral vibration during rotation can be extremely reduced, and defective firing caused by lateral vibration can be eliminated. Efficiently fires the twisted torque of rotor 3.
//- Since the force can be applied to the rod 6, in other words, the point of force can be brought closer to the resilient part 6', which is the point of application, so even if the magnetic force is of the same strength, the central part It is possible to obtain a stronger elastic force compared to a conventional rotary solenoid that rotates.

In order to attach the ball hitting device/formed as described above to a pachinko machine, as shown in FIG.
Launch position 3 at the base end of the launch rail 29 attached to the game board
0, the mounting board 3 faces a predetermined position on the back surface of the front frame, and is fixed with screws J' or the like. In order to adjust so that the bullet sA' of the firing rod 6 enters the center of the firing position 30, the adjustment spacer/7 and nut/9 of the fixed shaft 9 are rotated appropriately and the mounting board 3 is rotated +3. The position of the firing rod 6 is adjusted by changing the distance between the two.

The rotation angle of the firing rod 6 is preferably about 30 degrees from the rear firing preparation position (solid line in Figure 4) to the front ball firing position (dashed line in Figure 4) about the fixed shaft 9. The rotation angle of the firing rod 6 is determined by the stopper 3/a installed on the mounting board 3.
, 31b. In order for the firing rod 6 to rotate back and forth between the firing preparation position and the batting ball firing position, when the firing rod 6 is located at the batting ball firing position, the stator q
The ends of the magnetic pole generating part 7 /2α', /2b'... and adsorption plates provided correspondingly, 2daα, 1Atl), 2'
Align the position of the magnetic pole generation part and the adsorption plate 2 in advance so that the center line of 1 and 2 coincide with the radial line from the fixed shaft.

Adjust the position with Collb, 2daC. Further, at the firing position, the firing rod 6 is stopped with a slight backward inclination. Note that when the firing lever is located at the firing preparation position, it is desirable that the end of the magnetic pole generating section 7 and the suction plate partially overlap.

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

Players can perform ball hitting operations provided at the bottom of the front of the pachinko machine.
When 32 is operated, a pulse of a constant width is supplied to the coil g connected via a lead wire from the control circuit described later.
Coil g is momentarily excited. As a result, the magnetic pole generating portions are magnetized, and each magnetic pole generating piece 7.2n, /, 2b, /, :lc...
Each end of /, 2a', /, 2b'.

A magnetic pole is generated at /2c'.... For example, if the adjustment spacer /7 side of stator y is the N pole, the other end is the S pole, and the magnetic flux coming out from the N pole is the magnetic pole generating piece /2a, /,2
b, end of /2c/,2α',/,2b',/,2
C′ respectively form an N pole, and the other magnetic pole generating piece /ld,
/, 2. , /end of 2f/, 2d', /:le'
S poles are formed at , /, and 2f', respectively. Therefore, magnetic pole generating piece/, 2α end/2α' (N pole) and end/2d'
(S pole), /2b' (N pole) and /, 2e' (S pole) A strong magnetic field is generated between /2c' (N pole) and 7.2f' (S pole). , suction plate corresponding to each! 9α,,2
11b.

, lQc are instantly attracted. The attraction force of this magnetic force causes the rotation +3 to rotate, and the firing rod 6 rapidly rotates from the firing preparation position to the ball firing position to hit the ball at the firing position 3θ.

When the firing rod 6 rotates to the ball firing position, the pulse power supply to the coil disappears and the coil g is demagnetized, so that the ends of the magnetic pole generating pieces /2a, /2b, etc. α'.

The magnetic field of /b'... disappears. Therefore, the firing rod 6 rotates back due to the reaction of the bullet and its own weight, and the firing rod 6 fires 14 tons.
- Return to ready 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 g, the magnetic pole generator 7 is excited again. By repeating this,
Balls are fired intermittently.

The knife of the present invention hits the ball as described above, but in order to finish the ball hitting operation after it has started, or to adjust the firing force, it is necessary to operate the three ball hitting operation parts provided on the front of the pachinko machine. This is done electrically by the ball-hitting drive control means B that is in operation.

This batting ball drive control means B is provided so as to be interlocked with a control circuit 33 that supplies pulse power to the electromagnetic drive machine A, and the three batting operation units, and includes a switch function unit 31I that sends a start command to the control circuit 33, and an electromagnetic drive Power variable function unit 3 that adjusts the pulse power supply to machine A! Consists of r etc.

The ball-hitting operation unit 3.2 shown in FIG. 5 includes a rotatable operation lever 3 between a front handshake member 36 and a rear handshake member 3g-/S- having a cylindrical holding part 37. The operating lever 39 is biased counterclockwise by a spring qo, and the base end of the holding portion 37 is held against the front surface of the mounting board 3, and is fixed from the rear surface of the mounting board 3 with screws. . A microswitch 3' is provided inside the rear handshake member 3g as a switch function part 3, and a suppressing piece q protruding from the back side of the operating lever 3q is made to face the operating protrusion of the microswitch 3'l'. This microswitch 3' is always in the open state (OFF') because the pressing piece presses the operating protrusion under the bias of the spring
). Then, when the player turns the operating lever 3de clockwise against the bias of the spring qθ, the suppression piece is separated from the operating protrusion, so that the micro switch 31
I' switches from the open state (OFF) to the closed state (ON) and sends a start command to the control circuit 33 via the lead wire.

The power switch function section 3'l is the micro switch 3 mentioned above.
The player is not limited to the ball hitting operation section 3.
Switching (ON-OF) occurs in conjunction with the operation of 2.
F) Any configuration may be used as long as it does. For example, the surface of the front handshake member 3A is plated with chrome to provide electrical conductivity, and the lead wire 13 is wired to the front handshake member 3A,
The lead wire 11.3 is connected to a known touch detection circuit ++, and when the player touches the front handshake member 36 of the ball batting operation section 32, the touch detection circuit 11.3 is switched on and turned ON.
Then, a start command may be sent to the control circuit 33.

In addition, the ball-striking operation section 3.2 shown in FIG. 'α is connected to the tip of the shaft 1 of the variable resistor 35', which functions as the power variable function section 3S, via a cylindrical connecting member 6, to the rotating shaft 3 of the variable resistor 3', which functions as the variable resistor 3S. Main body 3! Mount f'b on the support protrusion 9 on the back side of the board 3? Fixed to. Therefore, when the player rotates the operating lever 3d clockwise, the rotating shaft 34 rotates integrally, and the resistance value of the variable resistor 3 left ′ is changed in accordance with the amount of rotation of the operating lever 39. be able to. When the resistance value of the variable resistor 33' changes 77-, the control circuit 33 connected via the lead wire increases or decreases the power supplied to the coil g of the electromagnetic drive machine A according to the amount of operation of the operating lever 3. Therefore, the output of the electromagnetic drive machine A increases or decreases, thereby making it possible to appropriately change the firing force of the batted ball.

In the above embodiment, the microswitch 3da' and the variable resistor 3 left' are provided separately, but both 3'l', .
3! ;' may be provided integrally. For example, a variable resistor having a built-in switch that turns on and off by rotating the rotation shaft may be connected to the shaft lIs of the operating lever 39. If such a variable resistor with a built-in switch is used, there is no need to provide a pressing piece 4'J provided on the operation lever 39, and the ball-striking operation section 3.2 can be replaced with an operation lever or an operation lever with restoring force. Since only a dial is required, the structure of the ball-hitting operation section 3.2 can be extremely simplified. Therefore, the assembly work at the assembly factory is also simplified.

Further, the ball hitting operation section 3λ and the power variable function section 3s are not limited to rotary type ones, but may be sliding type ones. For example, as shown in FIG. 6-7g, a handle 32' is provided on the front side of the pachinko machine as a ball-striking operation unit 3 unit so as to be movable in the horizontal direction.
．． 2' is the sliding part of the sliding variable resistor 3', y
r'a, and return spring ll.

It may be biased in one direction (to the left in FIG. 6) by.

A microswitch 3' is provided at one end of the movement range of the handle 3.2', and when the handle 3.2' is released, the microswitch 3'l' is biased by the spring motor O'.
It is switched to the OFF state by pressing the operating protrusion, and to the ON state when the player moves the handle 32' even slightly against the bias of the spring ao'.

Of course, you can adjust the firing force by doing something like this,
Since the firing force can be visually observed quantitatively depending on the position of the handle 32', the firing force can be immediately set to the original state when the player leaves the pachinko machine and starts playing the game again. Note that it is even 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 31. For example, in the above microswitch, -79 to 71I'
- It has a pulse oscillation circuit y-g which is triggered by a pulse generator, whose pulse repetition frequency can be adjusted by a pulse number variable part 9, and whose pulse width can be set by a pulse width setter SO. Such a pulse generator is already known and can be obtained, for example, by constructing a timer using NE 556 and adjusting its CR time constant with a variable resistor. S/ is a plug! It is a rectifier bridge connected to a 24 volt AC power supply via r:l, and 33
indicates a smoothing circuit capacitor. One conductor of the coil g is connected to this rectifying and smoothing circuit, and the other conductor is connected in parallel to a power amplifier circuit 12 consisting of Darlington-connected transistors and a resistor R1° and variable resistors R2 and Rs. It is grounded via an initial ball flight distance setting circuit material.

Note that this is a freehold diode.

Power amplifier circuit! The pace of the transistor constituting rq is the variable resistor 35 as the gravity variable function capital 3 left.
' is connected to the output terminal of the pulse oscillation circuit pg.

Therefore, when the player turns the operating lever 39 of the ball-hitting operation unit 3' to close (ON) the microswitch 31I', the pulse oscillation circuit tig receives the activation command from the microswitch 3'I'. Start.

In the case where the touch detection circuit lI<z is provided, when the player touches the front handshake member 36 of the three ball-striking operation units, the touch detection circuit 11 closes and the pulse generation circuit 12 starts.

When the pulse oscillation circuit yg starts, the setting devices lI9 and 5
A pulse is generated with a repetition frequency set to 0 and a pulse width, and is input to the left side of the power amplifier circuit via the variable resistor 35'. Therefore, the transistor of the power amplifier circuit 5 operates with a base current according to the resistance value of the variable resistor 3 left ′ corresponding to the rotation angle position of the operating lever 39, and power is supplied to the coil g with a current pulse corresponding to the base current. I can do it.

Therefore, the coil g excites the magnetic pole generator 7 according to the amount of rotation of the operating lever 39. That is, the player presses the operating lever 3.
The more you turn q, the stronger the power to the coil becomes.
Therefore, the magnetic pole generating piece /, 2α, i, 2b.

-Co/- The suction force between /2c and the suction plates Ylla, 211b, 211c is strengthened, the torque of the rotator S is increased, the launch force of the ball is increased, and the flight distance of the ball is thereby extended. .

It is desirable that the flight distance of the ball is 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 g changes.

In order to compensate for this change, in this embodiment, an appropriate number of semiconductor diodes 7 are inserted in series with the variable resistor 35' in the forward direction. This is because the internal resistance value of a semiconductor diode generally increases as the temperature rises, and acts to suppress the input current to the next stage transistor circuit. It is clear that fluctuations in the pulse current or voltage applied to the coil g, or both, affect the flight distance of the ball, and the diodes S7, etc. compensate for these fluctuations in general. Therefore, the circuit portion formed by this diode S functions as a constant power stabilizing circuit. Note that this constant power stabilizing circuit may be configured with a thermistor or the like having positive characteristics in addition to the above-mentioned diode code.

Furthermore, even if the control circuit 33 has the same circuit configuration, there are actual individual differences in the transistors, capacitors, resistors, etc. used, so the standards for the power supplied to the coil g are somewhat different. For this reason, when incorporated into a pachinko machine, the standard of the ball hitting strength, that is, the initial ball flight distance, may vary somewhat depending on the pachinko machine. Therefore, the control circuit 33 shown in FIG.
In this case, the variable resistance R2 of the initial ball flight distance setting circuit sr
, R3, the initial flight distance of the ball can be adjusted.

This allows the initial ball flight distance of all pachinko machines to be adjusted to a predetermined distance in the assembly factory. Therefore, no matter which pachinko machine the player plays, he or she can adjust the flight distance of the ball as desired with the same sense of longevity.

Furthermore, since the control circuit 33 is connected to the pulse number variable section lIq, if the operation section of the pulse number variable section l19 is provided on the front of the pachinko machine, the player operates the -,23- operation section. This allows the number of pulses of the pulse oscillation circuit yg to be increased or decreased, thereby making it possible to appropriately control the number of balls fired.

As described above, by operating the ball-hitting operation section 3.2, the player can start the ball-hitting motion and electrically adjust the distance of the ball. Also, pulse number variable @ llq
By operating the control panel, you can also adjust the number of balls hit per unit time.

The ball hitting device can hit the balls supplied to the firing position 30 one after another in response to the above operations of the ball hitting operation parts 3 by the player. Then, the supply device supplies one ball to the empty firing position w30 in synchronization with the firing operation of the firing rod 6.

The balls thrown into the saucer sr installed on the front side of the pachinko machine are
They are arranged in a line by a lead-out gutter S9 connected to the saucer Sg.
, and flows down into the guide gutter AI from the inlet 10 of the front panel. At the downstream end of the guide gutter AI, a flow prevention part A3 of a ball sending member A2 provided facing the firing position 30 of the firing rail 2q faces so as to be movable forward and backward. The ball feeding member 6 is rotatably supported by a shaft, and normally uses its own weight to lower the flow prevention part 3 into the flow path of the guide trough 6/ and stop it. Therefore, the foremost ball that has flown down from the saucer sg is prevented from flowing down by the flow prevention part A3 and is stopped at the lower end of the guide gutter A/ with a force of 1. An inverted-shaped feed arm 6k having a substantially horizontal protrusion A'l that abuts the lower end of the ball feeding member 4.2 is rotatably supported below the ball feeding member All. 6. The left hanging portion AA comes into contact with a hook-shaped rod 6 provided on the firing rod in a detachable manner. Then, when the firing rod 6 is located at the firing preparation position side, the rod A7 is moved to the feed arm A as shown in FIG.
, rotate t. When the feed arm Ajt rotates, the protrusion A
'l rotates so as to push up the ball sending part @t, 2, so the flow blocking part t3 retreats upward and is removed from the first ball. Therefore, the first ball is placed on the ball receiving part 6g that projects laterally from the lower part of the ball sending members A and 2, and
9. Stop the flow at the upper edge of the pipe. In this state, the firing rod 6 rapidly rotates toward the firing position, and when the rod 6 separates from the feed arm 6s, the feed arm tS returns and rotates due to its own weight, and the protrusion 4475: lower-co-S- descends. do. When the protrusion 44' is lowered, the ball sending member A2 rotates back in the direction of lowering the ball receiving portion tg due to its own weight and the weight of the first ball. When the ball receiver Ag descends, the first ball descends and is released from the upper edge of the delivery port A9, so that it falls from the delivery port 6q onto the firing rail and is supplied to the firing position 30. Note that when the ball receiving part Ag descends, the flow prevention part A3
Since the ball also descends integrally, the next ball will fall through this flow prevention part 63.
The flow is blocked and stopped. When the firing rod 6 returns to the firing preparation position, the rod A7 moves the feed arm 6s.
Since the ball feeding member A2 is rotated by rotating the ball feeding member A2, the ball released from the flow prevention portion 63 waits on the ball receiving portion AI, as described above. By repeating this process, one ball is supplied to the firing position 3o each time the firing rod 6 performs a firing operation.

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 moved forward and backward, so the force when the firing rod 6 returns to its original position due to its own weight can easily be used. can be operated. Also, the firing rod
When performing a firing motion, the feed arm tS is simply released, so the driving force on the left side of the rotator can be effectively used as the spring force of the ball.

Furthermore, even if the firing rod 6 fires at a high speed of about 100 rounds per minute,
Since the next ball can be supplied immediately after the ball at the firing position 30 is fired, the ball stops at the proper position of the firing position 30 by the time the firing rod 6 starts the next firing operation.

Therefore, the direction and flight distance of the ball can be stabilized.

As explained above, according to the present invention, the magnetic pole generating portion that becomes a magnetic pole when the coil is energized is fixedly provided on the mounting board to form a stator, and the cylindrical shape is rotatably fitted on the outside of the stator. A magnetic adsorption plate is provided on the rotating body in correspondence with the outer circumferential end of the magnetic pole generating part to serve as a rotating element, and a firing rod is provided on the rotating element.
It is possible to obtain a large hitting force with a small size and light weight, and since the firing rod can be made shorter than before, stable ball hitting operation can be performed. In addition, the present invention allows the point of force of the firing rod to be brought closer to the point of action (the firing part), so even lever-type FA machinery can operate with less electric power than before, which saves energy. Contribute to

Further, the present invention provides at least a pulse oscillation circuit that generates pulses, a power variable function section that adjusts the pulse output of the pulse oscillation circuit, and a power amplification circuit that performs power amplification according to the pulse output adjusted by the power variable function section. Since a ball-hitting control means consisting of a power amplification circuit that supplies power to the coil is provided,
This ball hitting control means controls power supply to the coil of the electromagnetic drive machine, thereby electrically adjusting the rotational movement and firing force of the firing rod. Therefore, there is no need to provide mechanical adjustment means such as a moving stopper for adjusting the rotation range of the firing rod, and the structure of the pachinko machine can be simplified.

Therefore, the assembly process at the assembly factory can be more streamlined than before.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a perspective view of the front frame from the back side, FIG. 2 is an exploded perspective view of the stator and rotor, and FIG. 3 is the stator and a perspective view of the rotor. 59-183776(
8) A vertical cross-sectional view of the mover, FIG. 4 is a cross-sectional view thereof, FIG. 5 is an exploded perspective view of the ball-striking operation section, FIG. 6 is a plan view of another embodiment of the ball-striking operation section, and FIG. 7 is a plan view of another embodiment of the ball-striking operation section. The block diagram of the control circuit and FIGS. 8 to 10 are front views of the ball supply mechanism. /... Electric ball hitting device, 3... Mounting board, G... Stator, S... Rotator, t... Launching rod, 7... Magnetic pole generator, g... Coil , 20... Cylindrical rotating body 1.2
ri...magnetic adsorption plate, 30...launch position, 3S...
Power variable function section, Rig... Pulse oscillation circuit, 311.
... Power amplifier circuit, A... Electromagnetic drive source, B... Hitting ball drive control means. Patent applicant Sophia Co., Ltd.: 2
．． ．． :,/

Claims (1)

[Claims] A stator that has a coil that excites a magnetic pole generator whose end portion is disposed on the outer circumferential side and is fixed to a mounting board, and a cylindrical rotating body that can concentrically rotate with the stator inside. an electromagnetic drive machine comprising a rotor whose body is fitted in a stator, and a rotor in which a magnetic adsorption plate is disposed on the body of the cylindrical rotating body so as to correspond to the end of the magnetic pole generating section;
A firing rod that is provided on the rotator of the electromagnetic drive machine and that hits the ball at the firing position, at least a pulse oscillation circuit that generates pulses, and adjusts the pulse output of the pulse oscillation circuit. and a power amplification circuit that amplifies power according to the pulse output adjusted by the power variable function section and supplies the power to the coil, the ball drive control means comprising: An electric ball hitting device for a pachinko machine, characterized in that the rotational movement and firing force of the firing rod are electrically controlled by controlling power supply to the core coil of the electromagnetic drive machine.