JPH054859Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of the Invention] This invention relates to a pachinko ball detector used in a pachinko game machine.

[Prior art and its problems]

In conventional pachinko ball detectors, no special measures were taken between the ball passage hole, the magnet provided on the card, and the reed switch.

Therefore, iron powder is generated every time a pachinko ball passes through the ball passage hole (out-of-ball balls are polished and then circulated back into the game machine, but iron powder is generated during this polishing process, and the iron powder is There was a problem in that the iron powder (which adheres to the balls and leaves the pachinko balls when it passes through the ball passage hole) adheres to the magnets, causing malfunctions and malfunctions.

〔the purpose〕

The invention of the present application was made in order to improve the above-mentioned problem, and the object is to provide a pachinko ball detector that does not malfunction or malfunction due to iron powder generated every time a pachinko ball passes.

[Effect of invention]

In the present invention, the magnet and reed switch provided in the card of the pachinko ball detector are isolated from the ball passage hole, so that iron powder generated every time a pachinko ball passes through the ball passage hole does not adhere to the magnet.

[Structure and effect of the idea]

In order to achieve the above object, the present invention has a structure including a case 15 that has a part of the ball passage hole 1, a cover 6 that fits with the case 15 to form the ball passage hole 1, and a tip portion that forms the ball passage hole 1. An actuator piece 8 that protrudes into the hole 1 and rotates around a support part 12 provided on a part of the case 15 or cover 6 through a ball passage, a spring means 9 for returning to the initial position, and a magnet 7.
A card 2 whose operation protrusion is pushed and driven by the rotation of an actuator piece 8, a reed switch 3 which is turned on and off by the approach of a magnet 7 provided on the card 2, and a case 15 or a cover 6.
The pachinko ball detector comprises wall parts 4, 4' integrally formed with the card 2 and separating at least a magnet 7 provided on a card 2 and a reed switch 3 from a ball passage hole 1.

With the above configuration, there is no malfunction or malfunction caused by iron powder generated each time a pachinko ball passes through the ball passage hole, and highly reliable pachinko ball detection is possible. In addition, the wall that hermetically isolates the magnet and reed switch included in the card is integrally formed with the case or cover, so the above-mentioned superior effects not previously achieved can be achieved without increasing the number of parts and manufacturing processes compared to conventional methods. be able to.

[Explanation of Examples]

FIGS. 1 and 2 are diagrams showing the configuration of a pachinko ball detector that is one embodiment of the invention of the present application. 1 in the figure is the ball passage hole through which the pachinko balls pass.
2 is a card (including an operating protrusion) driven by an actuator piece 8 that rotates when a pachinko ball passes through the ball passage hole 1; 3 is an input terminal 10;
and 11, 4 and 4' are walls that isolate the card 2, spring material 9, reed switch 3, etc. from the ball passage hole 1, 5 is a holding part that holds the actuator piece, and 6 is a ball. 7 is a permanent magnet attached to the card 2; 8 is an actuator piece; 9 is a spring material; 11 and 12 are input terminals formed by forming a copper foil pattern on a board; 12 is an actuator. Rotation support part of piece 8, 13 is fulcrum of card 2, 14 is wall part 4
and 4', and 15 is a case having a part of the ball passage hole.

As shown in FIG. 1, the pachinko ball detector consists of two members, a case 15 and a cover 6, and is assembled by fitting these two members together.

The wall portion 4 is continuous with and integrally formed with the case 15. This wall portion 4 extends in three directions as shown in FIG. The direction along the ball passage hole (the diagonal line extending vertically between the ball passage hole 1 and the spring material 9 in Fig. 2), the plane parallel to the top surface of the detector (as seen in Fig. 1) (the diagonal line extending in the left-right direction between the rotation support part 12 and the fulcrum 13 of the card 2 in FIG. 2), the bottom surface of the detector (the surface of the reed switch 3 in FIG. 2) (the diagonal line extending in the left-right direction below).

The side wall portion 4' is integrally formed with the cover 6. This wall portion 4' is intended to compensate for the portion that cannot be isolated by the wall portion 4 alone. That's the second
The gaps in the wall portion 4 are covered where the hatched areas in the figure are interrupted, that is, the operation protrusion portions of the card 2 and the substrate portions of the input terminals 10 and 11.

In this way, the isolation part 14 is completely isolated from the ball passage hole and the pachinko balls by the three-sided wall 4, wall 4', inner wall of the case 15, and inner wall of the cover 6. It is being done. In other words, the isolation part 14 is completed by fitting the case 15 and the cover 6 together.

Next, the operation of the pachinko ball detector will be explained.

When the pachinko ball A passes through the ball passage hole 1, the actuator piece 8 is moved by the pachinko ball to the rotation support part 1.
2 as a fulcrum and presses the card 2. The card 2 rotates about the fulcrum 13 while resisting the repulsive force of the spring member 9, which is a return spring. As the card 2 operates, the position of the permanent magnet approaches the reed switch 3. and,
When the distance between the permanent magnet 7 and the reed switch 3 becomes shorter than the operating distance of the reed switch 3, the reed switch turns on, keeping the output terminals 10 and 11 in an electrically closed state. An electric control unit (not shown) senses this and detects the passing of the pachinko balls.

After that, when the pachinko balls pass through the ball passage hole 1, the card 2 is pushed up by the spring material 9, so that the permanent magnet moves away from the reed switch and the reed switch is turned off. At the same time, the actuator piece 8 returns to its initial position.

The pachinko ball detector repeats the above operation,
It is assumed that iron powder is generated when the pachinko balls pass through the ball passage hole 1 during that time. However, since the permanent magnet 7 and the reed switch are hermetically isolated from the ball passage hole and the pachinko balls by the walls 4 and 4', iron powder does not adhere to the permanent magnet. In other words, the ball detector will not malfunction or malfunction due to iron powder.

[Brief explanation of the drawing]

FIG. 1 is a top view of the pachinko ball detector according to this invention, and FIG. 2 is a sectional view taken along line K-Y in FIG. 1...Ball passage hole, 2...Card, 3...Reed switch, 4, 4'...Wall part, 5...Holding part, 6
... Cover, 7 ... Permanent magnet, 8 ... Actuator piece, 9 ... Spring material, 10, 11 ... Input terminal, 12 ... Support part, 13 ... Fulcrum, 14 ... Isolation part, 15 ... Case, A... Pachinko balls.

Claims (1)

[Claims for Utility Model Registration] A case 15 having a part of the ball passage hole 1, a cover 6 that fits with the case 15 to form the ball passage hole 1, a tip portion protruding into the ball passage hole 1, The actuator piece 8 is provided with an actuator piece 8 that rotates around a support part 12 provided on a part of the case 15 or the cover 6 as a fulcrum when the ball passes through the actuator piece, and a spring means 9 and a magnet 7 for returning the actuator piece 8 to the initial position. A card 2 whose operation protrusion is pressed by rotation to drive the card 2; a reed switch 3 which is turned on and off by the approach of a magnet 7 provided on the card 2; and a reed switch 3 which is integrally formed with the case 15 or the cover 6. Magnet 7 provided on at least card 2
and wall portions 4 and 4' for isolating the reed switch 3 from the ball passage hole 1.