JPS6216779A - Solenoid drive apparatus in 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 [Industrial Field of Application] The present invention relates to a solenoid drive device used for moving a prize opening, etc. in a pachinko machine.

[Prior Art] In a pachinko machine, a solenoid increases the interest of the pachinko game by widening the prize opening provided on the game board for a certain period of time to increase the chance of winning a ball, or by changing the flow path of the ball. It has traditionally been widely used for this purpose. In that case, if the solenoid is left energized for a long time, it may overheat and burn out.

[Object of the Invention] Therefore, the present invention aims to prevent the solenoid in the pachinko machine from overheating even when it is energized for a long time.

[Means for Achieving the Object] In order to achieve the object, the solenoid drive device for a pachinko machine according to the present invention includes a microswitch that switches the driving voltage of the solenoid between a relatively high voltage and a relatively low voltage. Alternatively, the microswitch is provided to face an operation interlocking member connected to the plunger, and when a high voltage is applied to the solenoid and the plunger of the solenoid is activated, the microswitch switches the drive voltage of the solenoid from high voltage to low voltage. It is characterized by being made to be able to be used.

[Embodiment] In this embodiment, the present invention is applied to drive a solenoid for a ball flow path changing device. First, the structure of the ball flowing path changing device will be explained in detail.

In the figure, reference numeral 1 denotes a horizontally elongated rectangular mounting board, and a plurality of shaft supports 3 with shaft holes 2 drilled in the center are provided on the upper back side of the mounting board 1 at regular intervals in the horizontal direction, and the lower side A horizontally long guide hole 4 is provided in parallel to the side edge. Reference numeral 5 denotes a partition plate located on the front surface of the mounting board 1, in which a protruding shaft 6 provided at the upper end is fitted into the shaft hole 2 of each shaft support 3 and rotatably supported; The support piece 5a corresponding to the supporting piece 5a and the side piece 5b protruding from one side edge to the front side form a cross-shaped planar shape. A flow path 7 through which balls can pass vertically is formed in a horizontal line. Furthermore, a pin 8 is provided at the lower end of the support piece 5b of each partition plate 5 so as to protrude from the back side of the mounting board 1, facing the guide hole 4.

Reference numeral 9 denotes an actuating plate which is movable laterally along the guide hole 4 on the back surface of the mounting board 1, and connects the pins 8 of each of the partition plates 5 in a horizontal direction. A spring 10 is installed to pull the partition plate 5 into the sixth position.
The actuating plate 9 is urged to maintain the vertical position shown by the solid line in the figure. Reference numeral 11 denotes a solenoid which is a driving means, and is fixed to the back surface of the game board a via a mounting plate 12. The plunger 3 of the solenoid 11 and one end of the actuating plate 9 are connected to each other by a shaft 14 in the center of the solenoid. They are connected by a supported motion interlocking member 15.

FIG. 5 shows an example in which this flow path converting device is attached to a game board a. That is, this flow path converting device is installed on the left and right sides of the approximate center of the game board a, and the prize openings 16 are arranged directly below each flow path 7' of each flow path 7 formed by each partition plate 5. , an obstacle nail 17 is planted above the flow path 7' in which the prize opening 16 is arranged.

Therefore, under normal conditions, the solenoid 11 is demagnetized and each partition plate 5 is connected to the sixth
The ball is placed vertically as shown by the solid line in the figure, and the balls passing through each downstream path 7 are guided downward as they are, and the balls passing through each downstream path 7' enter the winning hole 16 and win a prize. however,
In this case, the obstructing nails 17 prevent the balls from easily passing through each flow path 7', making it difficult for the balls to enter the winning opening 16.

In this state, when the solenoid 11 is energized and the plunger 13 is pulled, the actuating plate 9 moves laterally against the spring 10 as shown by the chain line in Figure 3, and each partition plate 5 moves as shown by the chain line in Figure 5. By rotating the shaft 6 at the upper end as a fulcrum, each of the flow passages 7 and 7' is tilted, thereby creating a flow passage 7 free of any obstructive nails 17 above.
face the prize opening 16.

Therefore, when the hit balls pass through each flow path 7, all of the hit balls enter the winning hole 16 and become winning balls, and the chances of winning a prize are very high. When the solenoid 11 is demagnetized, the actuating plate 9 moves back to the solid line position in FIG.
Return to the solid line position in the figure.

Reference numeral 18 denotes a microswitch provided opposite the operation interlocking member 15, and the microswitch 18 is a first
As shown in the figure, the microswitch 1 is connected in series to the power supply circuit of the solenoid 11 and is operated by the operating member 15.
When the actuating protrusion 19 of No. 8 is pressed, the microswitch 18 is actuated to switch the driving voltage of the solenoid 11 from 24 volts to 10 volts. Reference numeral 20 denotes a transistor that is turned on in response to a command from the microcomputer to excite the solenoid 11, and when its base voltage increases in response to a command from the microcomputer, its emitter.

The collectors are electrically connected and voltage is applied to the solenoid 11 via the microswitch 18. Note that 21 is a diode connected in parallel with the solenoid 11 to prevent reverse current to the transistor 20.

In the solenoid drive device configured in this manner, when the transistor 20 is turned on in response to a command from the microcomputer, an operating voltage of 24 volts is applied to the solenoid 11 because the microswitch 18 is conductive to the 24 volt side. When the solenoid is excited by this voltage and the plunger 13 is pulled, the motion interlocking member 15 tilts as shown by the dashed line in FIG. Therefore, the actuating protrusion 19 of the microswitch 18 is
When pressed, the microswitch 18 switches its contact from the high voltage side to the low voltage side, and an operating voltage of 10 volts is applied to the solenoid 11. The flow path changes by driving the solenoid 11, and the flow of balls can be varied in a wide area in the lateral direction of the game board.

Then, when the transistor 20 is turned off by a command from the microcomputer, the solenoid 11 is demagnetized and the operation interlocking member 15 returns to its original state due to the elasticity of the spring 10, so the contact of the microswitch 18 also returns to its original state and is connected to the 24 volt side again. .

[Effects of the Invention] As explained in the embodiments above, in the solenoid drive device of the present invention, when the solenoid starts operating, a relatively high voltage is applied to the solenoid and it is strongly excited, so even if the operation interlocking members etc. Even if the movement is heavy, enough power can be obtained to move it = 7- On the other hand, when the movement interlocking member moves, a microswitch is activated and the voltage is switched to a low voltage, so excessive current flows to the solenoid. Even if it is energized for a long time, it will not overheat or burn out. Therefore, the present invention is extremely effective as a means for preventing overheating and burnout of solenoids in pachinko machines and at the same time reducing power consumption.

[Brief explanation of drawings]

The drawings show an embodiment of a solenoid drive device for a pachinko machine according to the present invention, and FIG. 1 is a circuit diagram. Figure 2 is a perspective view of the flow path converting device, Figure 3 is its back view, Figure 4 is its vertical side view, Figure 5 is its front view when it is attached to a game board, and Figure 6 is its back view. FIG. 3 is a front view, partially in section, for explaining the action. 11...Solenoid, 13...Plunger, 1
5...Operation interlocking member, J8...Micro switch, 20...Transistor. =8- Figure 1 Figure 2 Figure 8 Figure 5

Claims (1)

[Claims] A microswitch for switching the drive voltage of the solenoid between a relatively high voltage and a low voltage is provided to face the plunger of the solenoid or an operation interlocking member connected to the plunger, and a high voltage is applied to the solenoid to control the solenoid. 1. A solenoid drive device for a pachinko machine, characterized in that when the plunger operates, the drive voltage of the solenoid is switched from a high voltage to a low voltage by the microswitch.