JPH0338867B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a ball launcher for a pachinko machine that uses a rotary solenoid. A magnetic pole generating section that generates magnetic poles when a coil is energized is fixed to a mounting board to form a stator, and a cylindrical rotating body having a magnetic attraction member in its body is rotatably fitted to the outside of the stator and rotates. The present invention relates to a ball launcher that launches a ball by rotating a launch rod provided on a rotor through the attraction between the magnetic pole generator and the magnetic attraction member.

(Prior art and its problems) A conventional ball launcher using a rotary solenoid has at least one pair of magnetic pole generators arranged around a rotor that is rotatably located in the center. A coil is wound around this magnetic pole generating part to form a field pole, and the magnetic force generated there rotates the rotor at a certain angle.
This rotational force was transmitted to the firing rod via the output shaft of the rotor, and the rapid rotation of the firing rod fired the ball at the firing position. An example of this is shown in FIG. 1 of Japanese Utility Model Publication No. 57-6303.

However, such a conventional configuration requires a 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. It was difficult to obtain large torque.
In addition, increasing the size of the device poses a fatal problem in terms of whether it can be implemented in pachinko machines that do not have enough installation space.

Furthermore, since the firing rod that launches the ball is connected to the output shaft of the rotor located in the center of the device, the length of the firing rod is inevitably increased.

The longer the launch rod, the more likely it is that it will sway horizontally when it rotates, which can lead to uneven flight and unstable flight distance of the ball.

In addition, since the output shaft of the rotor itself, to which the base end of the firing rod is fixed, serves as the point of effort and fulcrum, the firing part at the tip that is far enough away from the base end can efficiently rotate the firing rod, which is the point of action. It is difficult to
Therefore, a large amount of power is required to obtain the desired torque.

The object of the present invention is to eliminate such drawbacks and inconveniences, and to provide a ball launcher that is small and lightweight, can obtain a large electromagnetic force, and also prevents the launch rod from rolling and exhibits stable rotational force. It is.

(Means for solving the problem) A ball launcher for a pachinko machine according to the present invention includes:
A fixed shaft 1 fixed to the mounting board 11, and the fixed shaft 1
a stator having a coil 2 wound around the coil 2 and magnetic pole generating parts 4A to 4D extending from the end of the coil 2 to the outer circumferential side; A rotor having a rotatable cylindrical rotating body 8 fitted concentrically and a magnetic adsorption member 6 formed on the body of the cylindrical rotating body 8 to correspond to the magnetic pole generating section 4; and a firing rail 15. The firing rod 9 consists of a main rod part 9A whose tip end springing part 13 faces the firing position 16 of the firing rail 15; A fixing portion 9 extending substantially perpendicularly from the base end
The fixed portion 9B of the firing rod 9 is detachably fixed to the outer surface of the body of the rotating body 8.

(Function) A stator is formed by winding a coil around a fixed shaft, and a rotor is formed on the outside of this fixed shaft with a magnetic adsorption member that can rotate concentrically with the shaft, so the coil can be wound efficiently. It can be wound, and an electromagnetic drive device that is relatively small and has a large rotational force can be constructed.

In addition, the firing rod is formed into a substantially right-angled cross section by the main rod portion and the fixed portion, and this fixed portion is detachably fixed to the rotor side, so that the ball firing device can be easily attached to the pachinko machine. Work efficiency when attaching and detaching the firing rod is improved.

(Example) Hereinafter, the present invention will be explained based on drawings showing an example of implementation.

1 to 3, a fixed shaft 1 is fixed to a mounting board 10 attached to the lower part of the back surface of a frame-shaped front frame 10 of a pachinko machine, and the fixed shaft 1 is mounted approximately in the center of this fixed shaft 1. The coil 2 is wound so as to form a magnetic core.

An insulating board 3 is placed in contact with both ends of the coil 2 in the axial direction, and two pairs of magnetic poles are placed on the fixed shaft 1 on the outside of both insulating boards 3 as a magnetic pole generator, which are perpendicular to and opposite to the fixed shaft 1. Generation pieces 4A and 4C, magnetic pole generation piece 4B,
Provide 4D.

The magnetic pole generating pieces 4A and 4C and the magnetic pole generating pieces 4B and 4D are each a pair, and each magnetic pole generating piece 4A, 4
B, 4C, and 4D extend from the end of the coil 2 wound around the fixed shaft 1 to the outer circumferential side thereof.

In this way, a stator consisting of the fixed shaft 1, the coil 2, and the magnetic pole generators 4A, 4B, 4C, and 4D is constructed.

The fixed shaft 1 has magnetic pole generating pieces 4 on its left and right sides.
Ring-shaped bearings 5, 5 are fitted further outside of A, 4B, 4C, 4D, and the radius of these bearings 5, 5 is slightly longer outwardly than the magnetic pole generating piece 4.

Between the left and right bearings 5, 5, disk-shaped suction cups 6, 6 are fixed as magnetic suction members made of magnetically sensitive members in correspondence with the pair of magnetic pole generating pieces 4A, 4B and 4C, 4D. It is constructed in one axis direction.

The remaining space on the outer circumferential side of the coil 2 excluding the space where the suction cup 6 exists between the left and right bearings 5, 5 is filled with protective side plates 7, 7 made of non-magnetic material.
has been erected.

In this way, a rotor is constructed which includes suction cups 6, 6 as magnetic attraction members and protective side plates 7, 7.

This rotor includes a rotatable cylindrical rotating body 8 that encloses the stator and is fitted concentrically to the fixed shaft 1 of the stator, and has magnetic poles in the body of the cylindrical rotating body 8. It is characterized in that it has a magnetic attraction member formed to correspond to the generating part.

The firing rod 9 that launches the ball waiting at the firing position 16 of the firing rail 15 has a springing part 13 at the tip that faces the firing position 16 of the firing rail 15 and is approximately perpendicular to the main rod part 9A from the base end of the main rod part 9A. It is integrally formed with a fixing part 9B extending in the direction.

The firing rod 9 is detachably fixed at its fixed portion 9B to the outer surface of the body of the rotating body 8.

The firing rod 9 of the embodiment is entirely formed into an L-shape, with the vertical portion of the L-shape serving as the main rod portion 9A, and the horizontal portion of the L-shape serving as the fixing portion 9B.

The horizontal portion of this L-shape, that is, is configured to also function as the suction cup 6.

As mentioned above, this firing rod 9 has the L-shaped horizontal part that functions as the suction cup 6 as its fixed part 9B, and the fixed part 9B is fitted on both ends of the fixed shaft 1. The firing rod 9 is bridged between the outer circumferential surface of the bearing 5 and the outer circumferential surface of the bearing 5, and the firing rod 9 is attached to the outer circumferential surface of the body of the cylindrical rotating body 8 as a rotor by a fixing member such as a screw. It is attached and detachable.
With such a configuration, the work of attaching and replacing the firing rod becomes easy.

That is, the left and right ends of the bent fixed part 9B of the firing rod 9 are connected to the bearing 5,
5, so when replacing the firing rod 9, there is no need to remove the solenoid part from its mounting board 11 as in the conventional case.
Only the firing rod 9 can be easily replaced.

In addition, the firing rod 9 is bent at right angles in the middle, and the bent fixing part 9B is fixed to the surface side of the body of the rotor. Compared to the case where the firing rod 9 is fixed, the length of the straight portion of the firing rod 9 can be reduced to approximately 1/2.

Therefore, by adopting a method of fixing the firing rod 9 to the outer surface side of the body of the cylindrical rotating body 8, the length of the firing rod can be shortened compared to the conventional one, and the lateral side of the firing rod can be reduced. Since the vibration can be reduced, problems such as uneven flight and unstable flight distance of the ball can be eliminated.

Therefore, the weight of the firing rod can also be reduced by shortening the firing rod or reducing its plate thickness.

On the firing rod 9 side of the fixed shaft 1, there is a mounting board 11 for the pachinko machine frame 10 for positioning the firing rod 9.
A spacer portion 12 is formed between the bearing 6 and the bearing 6. In the spacer portion 12 of the embodiment, the corresponding portion of the fixed shaft 1 is made into a large diameter.

The thickness of this spacer portion 12 in the direction of the fixed axis is set so that the springing portion 13 at the tip of the firing rod 9 is appropriately located at the center of the firing position 16 of the firing rail 15 attached to the game board. There is.

Fixed shaft 1 located further outside of the spacer portion 12
A male threaded portion 17 is formed at the base of the male threaded portion 1.
7 is fitted into the mounting board 11, protrudes into the through hole 18 of the machine frame 10, and is fastened with a nut 19.

In this way, the firing rod 9 and the rotary solenoid mechanism section consisting of the stator and rotor that rotate the firing rod 9 are integrally formed, and only the fixed shaft 1 forming the center of the rotary solenoid mechanism section is used. When it is fastened to the mounting board 11, it is possible to easily attach and detach the ball launcher itself to the mounting board 10.

In addition, compared to conventional methods where support frames and fixed support rods were installed in a complicated manner using a large number of parts, this not only simplifies the installation and removal work, but also eliminates the need for those support frames and support rods. The entire device can be significantly simplified and lightened.

In FIGS. 1 and 4, the firing rod 9 is in a first state in which it is in a standby position at a position spaced backward from the batted ball firing position 16 at the base end of the firing rail 15, that is, in a firing preparation position, and in a first state in which it is waiting at a firing preparation position; When energized, it rotates to the firing position and reciprocates so as to alternately change to a second state in which the ball located at the firing position 16 is hit.

In order to attach the device of the present invention constructed as described above to a pachinko machine, as shown in FIG. The mounting board 11 may be mounted at a predetermined position on the back surface of the front frame 2 so as to enter the firing position 16 at the base end.

The shape and dimensions of the spacer portion 12 of the fixed shaft 1 are predetermined so that the resilient portion 13 of the firing rod 9 enters the firing position 16.

The rotation angle of the firing rod 9 is centered around the fixed axis 1.
The firing rod 9 rotates from the first state in which it is separated from the standby position in the publication, and the firing part 13 moves to the firing position 16.
The preferred angle is about 30 degrees until the second state where the ball enters the ball and launches the ball. The rotation angle of the firing rod 9 is regulated by stoppers 20A and 20 planted on the mounting base 11.

Then, the firing rod 9 is in the firing preparation position (first state)
In order to reciprocate between the ball firing position and the ball firing position (second state), when the firing rod 9 is located at the batting ball firing position, the end of the magnetic pole generating part of the stator and the The position of the magnetic pole generator and the position of the suction cup 6 are adjusted in advance so that the center line of the suction cup 6 provided correspondingly coincides with a straight line radiating from the fixed shaft 1.

When the firing rod 9 is in the firing preparation position, the end of the magnetic pole generating part and the suction cup 6 are partially overlapped, and the firing rod 9 rotates to launch the ball. At the position, it is desirable that the end of the magnetic pole generating portion and the suction cup 6 overlap as widely as possible.

Next, a ball supply mechanism that supplies balls to the firing position 16 will be explained.

In FIG. 1, the ball supply mechanism includes a flow stopper 42 that is linked to the rotation of the firing rod 9 and is located near the inclined lower end of the ball outlet gutter 22 to stop the balls from flowing down. It has a rotating member 49 consisting of a ball receiving part 25 connected to the part 42 and a supply regulating part 48 that closes the ball receiving part 25 on the firing rail 15 side.
When converts to the first state, the rotating member 49 rotates to send the ball from the flow stopper 42 to the ball receiver 25,
When changing to the second state, the ball is rotated back and the ball placed on the ball receiving part 25 is sent out from the supply regulating part 48 to the firing position 16.

The ball lead-out gutter 22 shown in the embodiment has a control view 2 from the inclined lower end of the saucer 21 provided at the front of the pachinko machine.
4, and the balls thrown into the tray 21 are flowed down while being rectified one by one in a line.

In addition, as a means for ensuring that the balls flow down one by one, for example, the control rod 24 as in the embodiment is used, and the balls are flowed down one by one toward the ball supply mechanism based on the tilting of this control rod 24. It is known to cause

The flow stopper 42 temporarily prevents the balls flowing down from the ball guide gutter 22 according to the rotation of the firing rod 9.
In the embodiment, it is positioned to face the downstream end of the control rod 24, which is a positional element constituting the ball outlet gutter 22.

The ball receiver 25 accepts only one ball that has passed through the flow stopper 42, operates in conjunction with the rotation of the firing rod 9 to override the regulation of the supply regulator 48, and releases the ball. Send it to firing position 16.

The ball receiving part 25 of the embodiment is connected to the above-mentioned flow stopping part 42.

The supply regulating section 48 has a function of preventing the balls received by the ball receiving section 25 from naturally flowing down toward the firing position 16 side.

In the embodiment, a wall formed between the firing position 16 of the firing rail 15 and the ball receiving part 25 so as to close the firing rail 15 side is provided with a function as the supply regulating part 48 .

This wall is bored with an outlet 43 through which the ball can pass, and the ball receiving portion 25 that receives the ball is raised by tilting the rotating member 49 in accordance with the rotation of the firing rod 9. When the ball faces the outlet 43, the ball flows into the outlet 43 and is sent to the firing position 16.

In the embodiment, the receiving surface of the ball receiving portion 25 is inclined so that the ball naturally flows down toward the wall.

The operation of the ball receiving portion 25 is linked to the rotation of the rotation member 49, and in the embodiment, it supports an engaging portion that engages with the rotation member 49 so that it moves up and down in accordance with the rotation of the firing rod 9. A rod 27 screwed to the firing rod 9 is connected to the cam plate 14 at the other end of the shaft 26, and is lowered in response to the backward rotation of the firing rod 9 to feed the ball supply mechanism 23.
The ball is supplied to the firing position 16 side through the outlet 23 of the ball.

Next, the operation of the ball launcher will be explained.

When the rotatable operating lever 29 of the operating section 28 provided at the lower front of the pachinko machine is rotated, the operating section 28
The internal starting switch SW is turned on, and a pulse of a certain width is supplied from the control circuit 30 that controls the rotation of the firing rod 9 to the coil 2 connected via the lead wire 31, and the coil 2 is instantaneously activated. Excited.

As a result, the fixed shaft 1 is magnetized and a magnetic pole is generated in each of the magnetic pole generating pieces 4A, 4B, 4C, and 4D.

For example, if the spacer part 12 side of the fixed shaft 1 is the north pole, the other end is the south pole, and the magnetic flux coming out of the north pole forms the north pole in the magnetic pole generating pieces 4A, 4C, respectively, and the other magnetic pole generating piece 4B, 4D, respectively, to form an S pole.

Therefore, the magnetic pole generating pieces 4A (N pole) and 4B (S pole),
A strong magnetic field is generated between the magnetic pole generating pieces 4C (N pole) and 4D (S pole), and the corresponding suction cups 6, 6 (fixed portion 9B) are instantly attracted.

The cylindrical rotary body 8 is rapidly rotated by the attractive force of the magnetic force, and the firing rod 9 is therefore rapidly rotated and the ball at the firing position 16 is fired.

At the same time as the firing rod 9 ejects the ball, the coil 2 is demagnetized, and the magnetic poles of the magnetic pole generating pieces 4A and 4C and the magnetic pole generating pieces 4B and 4D disappear and decrease. The firing rod 9 quickly returns to the firing standby position by the traction spring and its own weight.

Then, when the next pulse is supplied to the coil 2, it is excited again.

Thereafter, by repeating this process, the ball is intermittently launched (launched).

The flight distance of the ball is adjusted by adjusting the resistance value of a variable resistor 33 provided at the tip of the shaft 32 which is rotated by the control lever 29 of the control unit 28, and by the power amplifier circuit 30A in the control circuit 30. This is done by adjusting the current value to coil 2.

That is, the larger the operating lever 29 is rotated, the stronger the current to the coil 2 becomes, and the longer the ball travels.

(Effects of the Invention) As described above, the present invention forms the firing rod in an L-shape, the vertical part thereof is the main rod part of the firing rod, and the horizontal part is the fixed part of the firing rod. is fixed to the outer surface of the body of the rotor, so it is less likely to come loose than when it is fixed at one point to the output shaft of the solenoid at the base end of the firing rod, as in the past.
The firing rod can be fixed more stably and firmly, and the mounting strength of the firing rod can be increased.

Furthermore, since the firing rod is not attached to the output shaft that protrudes toward the front frame, that is, the end surface of the solenoid section on the front frame side, as in the conventional case, the solenoid section can be fixed without removing it from its mounting base. Only the firing rod can be attached and detached.

Furthermore, since a wide working space is provided from the outer peripheral surface of the solenoid part, tools can be used relatively freely and work can be done quickly and easily.

Furthermore, since the firing rod of the present invention can be significantly shortened in its overall length compared to conventional ones, the shortness of the firing rod makes it possible to reduce horizontal vibration during operation, which reduces the unevenness of the ball's flight. It can eliminate defective firing such as unstable flight distance.

Further, desired torque can be efficiently obtained with relatively small electric power.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a perspective view of a batted ball launcher, FIG. 2 is an exploded perspective view of a solenoid section, FIG. 3 is a longitudinal sectional view of the solenoid section, and FIG.
The figure is a cross-sectional view of the solenoid section, and FIG. 5 is a power supply circuit diagram to the rotary solenoid. 1...Fixed shaft (stator), 2...Coil (stator), 4A...Magnetic pole generation piece (stator) as a magnetic pole generation part, 4B...Magnetic pole generation piece (stator) as a magnetic pole generation part , 4C...Magnetic pole generation piece (stator) as a magnetic pole generation part, 4D...Magnetic pole generation piece (stator) as a magnetic pole generation part, 5...Bearing (fixed part), 6
...Suction cup (rotor) as a magnetic attraction member, 8
... Cylindrical rotating body (rotor), 9 ... Launching rod, 9A
...Main rod part (launching rod), 9B... Fixed part (launching rod), 11... Mounting board (stator), 15... Launching rail, 16... Launching position.

Claims (1)

[Scope of Claims] 1. A stator having a fixed shaft fixed to a mounting board, a coil wound around the fixed shaft, and a magnetic pole generating section extending outward from an end of the coil; A rotatable cylindrical rotating body containing a stator and fitted concentrically to the fixed shaft of the stator; and a magnetic adsorption member formed on the body of the cylindrical rotating body to correspond to the magnetic pole generating portion. and a firing rod that launches the ball waiting at the firing position of the firing rail. Ball firing for a pachinko machine, characterized in that the firing rod is integrally formed with a fixing part extending in a substantially perpendicular direction from the base end, and the fixing part of the firing rod is detachably fixed to the outer surface of the body of the rotating body. Device. 2. The ball launcher according to claim 1, wherein the fixing portion of the launch rod is a magnetic adsorption member.