JP2002331080A - Ball feeder for pachinko machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ball feeder for pachinko machines which enables stable supply of balls by reducing impacts when a ball feeding member is attracted onto a solenoid and facilitates the assembling or disassembling thereof by simplifying the structure thereof. SOLUTION: A magnetic plate 6 attracted onto the solenoid 3 is fitted onto the ball feeding member 2 by bending it at both side ends thereof hence dispensing with fixing parts such as pins. The periphery of the tip face of a core 31 of the solenoid 3 is covered with an end face of a bobbin case 32 so that the rotation of the ball feeding member 2 is received by the bobbin case 32 without letting the magnetic plate 6 contact the core 31 directly when the ball feeding member 2 is attracted onto the solenoid 3. Moreover, the core 31 is provided with a retaining hole to let the solenoid 3 be mounted gently on a unit case 10 with a protrusion 12, thereby buffering impacts.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ball feeder of a pachinko machine for sending balls supplied from a ball supply tray one by one to a ball firing rail in a pachinko machine.

[0002]

2. Description of the Related Art At the bottom of a game board of a pachinko machine, FIGS.
As shown in the figure, a ball such as a ball launching rail 30, a rotary solenoid 40, a ball hammer 41 driven by the rotary solenoid 40 to play a ball, and a unit case 10 of a ball feeder for sending out balls to the ball launching rail 30 one by one. Is provided on the game board surface. Then, as one of the ball feeding devices for sending the game balls one by one to the ball launching position in the pachinko machine, for example, as shown in FIGS. An inlet 4 for receiving a ball sent from a supply tray (not shown);
And a ball feed member 2 that is oscillated by energization of the solenoid 3 in addition to a communication port 5 provided with a discharge port 5 that sends the ball to the outlet 3. Such a ball feeder,
When the ball feed member 2 on which the magnetic plate 6 is mounted is suctioned and rotated upward while the solenoid 3 is ON, the leading ball of the ball row fed from the ball supply tray is pressed by the pressing force of the ball feed member 2. The ball is taken into the ball receiving portion 7 to be a receiving ball. In this state, the receiving ball is supported by a part of the outlet 5 and cannot flow out of the ball receiving portion 7. Next, as shown in FIGS. 10 and 11, the solenoid 3 is turned off.
The receiving ball can be sent out to the ball launching rail 30 by rotating the ball sending member 2 downward by gravity to make the ball receiving portion 7 the same height as the bottom surface of the sending port 5.
Such a ball is received and sent out 100 times per minute continuously, and the ball is hit on the game board.

In the above-described ball feeder, it is required that the repetitive operation of supplying the ball to the ball launch position and stopping it just before launch is stable for a long time. However, in the conventional ball feeder of the pachinko machine, the attractive force of the solenoid 3 fluctuates due to the accumulation of residual magnetism due to the direct contact of the magnetic plate 6 with the iron core,
When the ball feed member 2 collides with the iron core of the solenoid 3, an impact or vibration is generated, which may hinder the stationary state of the ball and may cause variation in the firing speed of the ball. Also, since the mounting of the solenoid to the unit case was firmly fixed with screws or the like, the vibration of the solenoid was easy to propagate without being attenuated. If a stopper is provided near the tip of the iron core in order to avoid such a direct collision of the ball feed member 2 with the iron core, there is a mounting error between the pachinko machine in the gap between the stopper and the iron core, and the solenoid has There are problems that the suction force varies, and that a stopper must be provided on the stopper to reduce the impact. Also, in the ball feeder, there is a demand for simplifying the configuration of the device so as to eliminate the need for maintenance and to reduce the cost. In particular, the attachment of the magnetic plate 6 to the plastic ball feed member 2 has conventionally been fixed by inserting a pin or the like into the through-hole, so that assembling is troublesome and disassembly at the time of sorting and collecting is troublesome. There was a problem.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, reduces the impact when the ball feed member is sucked by the solenoid, and can supply the ball stably for a long period of time. The purpose of the present invention is to provide a ball feeder for a pachinko machine which has a simple structure and can be easily assembled and disassembled.

[0005]

SUMMARY OF THE INVENTION A ball feeder of a pachinko machine according to the present invention, which has been made to solve the above-mentioned problems, swings by intermittent excitation of a solenoid to reduce a ball supplied from a ball supply tray. In a ball feeding device of a pachinko machine provided with a ball feeding member for feeding a ball to a ball launching rail, a magnetic plate attracted by a solenoid is fitted to the ball feeding member by bending both side ends thereof. It is assumed that.
The periphery of one end face of the iron core of the solenoid is covered with an end face of a bobbin case around which a coil is wound, and a step is provided between the end face of the bobbin case and the tip face of the iron core to avoid direct contact between the magnetic plate and the iron core. In addition to the above, it is desirable to provide a locking hole for loosely mounting the solenoid in the iron core.

In the ball feeding device of the pachinko machine of the present invention, the magnetic plate is mounted on the ball feeding member by bending both sides of the magnetic plate into a hook shape and fitting the magnetic plate by utilizing the elastic deformation of the magnetic plate. As a result, it is easy to disassemble, reduce the number of parts, and reduce the number of parts. The impact at the time can be reduced. In addition, the periphery of the one end surface of the iron core was covered with the end surface of the bobbin case around which the coil was wound, and a step was provided between the end surface of the bobbin case and the end surface of the iron core, so that the ball feed member was attracted to the solenoid. At this time, the rotation of the ball feed member can be stopped by being received by the end surface of the bobbin case without the magnetic plate directly touching the iron core. Therefore, a stopper equipped with a cushioning material as in the related art can be dispensed with, and since the residual magnetism of the magnetic material does not accumulate in the iron core, the attraction force of the solenoid does not fluctuate. Further, the gap between the magnetic plate and the iron core when the rotation of the ball feed member is stopped can be kept constant by the step, so that there is no variation in the suction force due to a mounting error between the pachinko machines. Further, the impact is not directly applied to the iron core mounted on the unit case of the ball feeder, and the vibration can be attenuated by the solenoid. In addition, since the solenoid is loosely mounted in the unit case by the locking hole provided in the iron core, the vibration transmitted to the unit case can be significantly reduced, the sent ball stops immediately and the firing speed of the ball is stabilized And keep it constant.

[0007]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a view showing a main part of a ball launching device provided with a ball feeder of a pachinko machine according to the present invention. As described above, the ball launching device includes a ball launching rail 3.
0, a rotary solenoid 40, a ball hammer 41 driven by the rotary solenoid 40 to play a ball, and a unit case 10 of a ball feeder for sending the balls one by one to the ball firing rail 30. In addition, unit case 1
Numeral 0 is attached to the game board so that it can be opened and closed by a hinge 1. Reference numeral 20 denotes an opening / closing panel provided with a ball supply tray (not shown) on the front surface.

FIG. 2 is a view showing the inside of the unit case 10, wherein 1 is the above-mentioned hinge, 2 is a ball feed member, 3 is a solenoid, 4 is an inlet for a ball fed from a ball supply tray, and 5 is a ball. This is a ball outlet for sending the balls received by the feed member 2 to the ball firing rail 30 one by one. A magnetic plate 6 is fitted to the ball feed member 2 and the solenoid 3 is
When the power is turned on at N, the solenoid 3 rotates around the shaft 22 and is sucked. In the figure, the solenoid 3 is turned off and is in a non-energized state, and the ball feed member 2 rotates counterclockwise due to gravity and is received by a stopper 11 formed integrally with the unit case 10.
In this state, the ball is prevented from flowing down because the ball stopper 23 of the ball feeding member 2 faces the inlet 4 of the ball fed from the ball supply tray.

Next, when the solenoid 3 is turned on, the magnetic plate 6 is attracted to the solenoid 3 as shown in FIG. Stop when it hits the tip. At this time, the leading sphere of the row of spheres whose flow has been prevented from flowing down is released from the stop of the flow by the ball stopper 23 and can flow into the ball receiver 7. However, in this state, the ball receiving portion 7
There is a slight shift between the position of the ball and the position of the ball outlet 5, so that the incoming ball is not sent to the firing rail 30 as it is. Next, when the solenoid 3 is turned off and the ball feeding member 2 returns to the state shown in FIG. 2 and the position of the ball receiving portion 7 coincides with the ball outlet 5, the ball is sent out to the ball firing rail 30. Then, the leading ball of the next row of balls is prevented from flowing down again by the ball stopper 23 and cannot flow into the ball receiver 7. As described above, the balls are sent out to the ball firing rail 30 in synchronization with the movement of the ball-and-ball hammer 41 one by one.

FIG. 4 is a view showing the structure of the ball feeding member 2. A magnetic plate 6 attracted by a solenoid 3 is mounted on the ball feeding member 2 made of plastic such as hard resin. This magnetic plate 6 is formed in a hook shape by bending both ends into a U-shape as shown in FIG. The magnetic plate 6 having such a shape can be elastically deformed even if the frontage of the front end is widened, so that the shape can be restored. Therefore, using this elastic deformation, the magnetic plate 6 is fitted on the surface of the ball feed member 2 which comes into contact with the solenoid 3. In addition,
As the magnetic plate 6, iron, nickel, or an alloy thereof that can be attracted to a magnet can be used.

As shown in FIG. 5, the solenoid 3 has a bobbin case 32 in which a coil 33 is wound around an iron core 31 formed in a substantially U-shape. The periphery of one end surface of the iron core 31 is covered with the end surface of the bobbin case 32, and a step is provided between the end surface of the bobbin case 32 and the end surface of the iron core 31 so that the bobbin case 32 is slightly smaller than the iron core 31. It is formed high. Therefore, when the solenoid 3 attracts the ball feed member 2, the magnetic plate 6 does not directly hit the iron core 31.
1 and the suction force of the solenoid 3 does not fluctuate. Further, since the gap between the magnetic plate 6 and the iron core 31 when the suction of the ball feed member 2 is stopped can be kept constant by the step, the variation in the suction force due to the mounting error between the pachinko machines as in the related art is reduced. Will not occur.
Furthermore, the impact when the rotation of the ball feed member 2 is stopped, which was conventionally transmitted directly from the iron core 31 to the unit case 10, is absorbed by the bobbin case 32 and the coil 33. In addition, a locking hole 34 is provided in the iron core 31, and as shown in FIG.
It is installed without backlash by the seating surface 13 and the side surface of the unit case 10. Therefore, the solenoid 3
Even if the vibration occurs, a slight gap can be formed between the unit case 10 and the vibration transmitted to the unit case 10 can be significantly reduced.

[0012]

As described above, in the ball feeder of the pachinko machine according to the present invention, the magnetic plate is mounted on the ball feeder by bending both ends of the magnetic plate into a hook shape and elasticity of the magnetic plate. By adopting the method of fitting using deformation, it is easy to assemble and disassemble without the need for conventional fixing parts such as pins for fixing, reduce the number of parts, and feed the ball It is possible to reduce the weight of the member and reduce the impact upon suction to the solenoid. In addition, the periphery of the one end surface of the iron core was covered with the end surface of the bobbin case around which the coil was wound, and a step was provided between the end surface of the bobbin case and the end surface of the iron core, so that the ball feed member was attracted to the solenoid. At times, the rotation of the ball feed member can be stopped by the bobbin case without receiving the magnetic plate from directly touching the iron core. Therefore, a stopper equipped with a cushioning material as in the related art can be dispensed with, and since the residual magnetism of the magnetic material does not accumulate in the iron core, the attraction force of the solenoid does not fluctuate. Further, since the gap between the magnetic plate and the iron core when the rotation of the ball feed member is stopped can be kept constant by the step, there is no variation in the suction force due to a mounting error between the pachinko machines. The response to the operation is improved, and the ball feeding operation can be performed quickly. Also,
Since the rotation of the ball feed member is received by the bobbin case, no direct impact is applied to the iron core. Also, since the solenoid is loosely mounted in the unit case by the locking hole provided in the iron core, a slight gap is formed between the solenoid and the unit case even if the solenoid vibrates. Can be reduced. Therefore, the ball feeding device of the pachinko machine of the present invention can quickly stop the sent ball and keep the firing speed of the ball stable and constant for a long time.

[Brief description of the drawings]

FIG. 1 is a plan view showing a main part of a ball launching device.

FIG. 2 is a front view of the unit case in a state where a ball feeding member is detached from a solenoid.

FIG. 3 is a front view of the unit case in a state where a ball feed member is sucked by a solenoid.

FIG. 4 is a front view (a) and a side view (b) showing a structure of a ball feeding member, and a cross-sectional view and a plan view (c) of a magnetic material.

FIG. 5 is a side view (a) and a front view (b) of a solenoid.

FIG. 6 is a front view of the ball launching device.

FIG. 7 is a plan view of FIG. 6;

FIG. 8 is a cross-sectional view of the side surface of the ball feeding device immediately after the ball is sent.

FIG. 9 is a front view of FIG. 8;

FIG. 10 is a cross-sectional view of a side surface of the ball feeding device during ball sending.

FIG. 11 is a front view of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hinge 2 Ball feed member 3 Solenoid 4 Ball inlet 5 Ball outlet 6 Magnetic plate 7 Ball receiver 10 Unit case 11 Stopper 12 Projection 13 Seating surface 20 Opening / closing panel 22 Axis 23 Ball stopper 30 Ball firing rail 31 Iron core 32 bobbin case 33 coil 34 locking hole 40 rotary solenoid 41 bullet hammer

Claims (2)

[Claims] 1. An oscillator which is oscillated by intermittent excitation of a solenoid,
In a ball feeder of a pachinko machine equipped with a ball feed member for sending a ball supplied from a ball supply plate to a ball firing rail one ball at a time, a magnetic plate attracted by a solenoid is provided on both ends of the ball feed member. A ball feeder for a pachinko machine, which is bent and fitted. 2. A peripheral edge of one end face of an iron core of a solenoid is covered with an end face of a bobbin case wound with a coil to avoid direct contact between the magnetic plate and the iron core between the end face of the bobbin case and the end face of the iron core. The ball feeder of a pachinko machine according to claim 1, further comprising a step for providing a solenoid and a locking hole for gently mounting the solenoid.