JPH0441884Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> This invention is a variable winning device for pachinko machines that changes the shape of the winning part so that a large number of balls can win when certain conditions are met. In particular,
The present invention relates to an improvement in a detection means for detecting winning balls in a variable winning device.

<Prior art> In a pachinko machine, when a certain condition is met, such as when a ball enters a specific winning opening, the form of the winning part is changed to allow a large number of balls to win. There is Publication No. 57-24381. This idea places a downwardly pivotally supported opening/closing plate facing the opening of the mounting board, which is tilted forward by a solenoid to open the opening, and the opening/closing plate allows the ball to be released. It was designed to be taken onto the plane. However, opening the above openings without limit would bring extremely large profits to the players, and would especially arouse the gambling spirit of the players.
There is a problem that game parlors have to eject a large number of prize balls, which puts them at a disadvantage, and some kind of restriction means is necessary.

Therefore, the conventional variable prize winning device detects the balls entering the prize in the opening, and closes the opening/closing plate when, for example, 10 balls are detected. The winning ball detection means includes a ball passage communicating with the opening on the back side of the mounting board, and an actuating member facing this ball passage, so that when the actuating member tilts due to the weight of the passing ball, The configuration is such that the detection switch is conductive.

In addition, as a detection means, a photoelectric switch consisting of a pair of light emitting element and light receiving element is disposed in front of the opening so as to face each other, and the light projected from the light emitting element to the light receiving element is blocked by the passing sphere. There is a device that detects balls by
147483).

<Problems to be solved by the invention> However, with the above-mentioned conventional mechanical detection means using an operating member and a detection switch, the configuration is complicated, and it is difficult to align the balls entering the opening with the ball path. Since each ball is detected one by one, there is a time lag between when the ball enters the opening and when it is detected.Even though there are already 11 or more balls in the opening, the detection switch still does not detect 10 balls. There may be cases where only the following are detected. In this case, since the opening/closing board remains open, more balls than the predetermined number will enter the prize, which not only makes the game less fair but also puts the game parlor at a disadvantage.

In addition, in the case of a variable prize winning device having a photoelectric switch, the ball passes between the light emitting element and the light receiving element while the opening and closing plate is not opened even though a signal to open the opening and closing plate is issued. As a result, the ball that should have been a winning ball ends up being an out ball. Additionally, if a ball collides with the top surface of the opening/closing plate while the opening/closing plate is open and bounces, the bounced ball may cross the photoelectric switch again and be double counted, resulting in inaccurate detection. Frequently. Furthermore, the distance between the game board and the front glass varies from pachinko machine to pachinko machine, and the course of the balls flowing down the game board surface is also not constant. Therefore, depending on the position where the photoelectric switch is provided, there may be cases where the photoelectric switch is not detected even though it passes within the winning area.

<Means for solving the problem> The present invention was proposed in view of the above. A horizontally long opening is provided in the mounting board, and an opening/closing plate that can be opened and closed faces the opening, and this opening/closing plate is In a variable prize winning device that can be opened and closed by a driving source to convert between a first state in which a ball cannot be won and a second state in which a ball can be easily won, there is provided a variable prize winning device located behind the mounting board and facing the back surface of the mounting board. A pair of light-emitting elements and a light-receiving element are provided facing each other at both left and right ends of this gap, and a photoelectric switch is installed. , and in the second state, the ball entering the opening and falling through the gap is detected by blocking the light projected from the light emitting element toward the light receiving element. This is how it was done.

<Function> A gap is formed at the back of the mounting board, and a photoelectric switch consisting of a pair of light-emitting elements and a light-receiving element is provided at both ends of the gap, so that the ball falling through the opening is formed at the back of the mounting board. However, the ball can be detected by blocking the light projected from the light emitting element toward the light receiving element.

<Embodiments> The present invention will be described below with reference to embodiments of the drawings.

The variable prize winning device 1 according to the present invention includes a mounting board 3 in which an opening 2 serving as a big prize opening is opened, an opening/closing plate 4 that faces the opening 2 in a freely openable/closable manner, and the opening/closing plate 4.
It has a drive source 5 such as a solenoid for driving the ball, and a photoelectric switch 6 as a detection means for detecting the ball entering the opening 2.

A horizontally long opening 2 is formed in the mounting board 3, and a flange 8 fixed to the front surface of the game board 7 is formed around the opening 2. Furthermore, a rib 9 is provided on the back surface of the mounting board 3, extending above and to the left and right of the opening 2. Furthermore, according to the embodiment shown in the drawings, protrusions 10 are provided on the left and right sides of the opening 2 that protrude in the viewing direction, and the protrusions 10 are provided with an indicator 11 such as a lamp, and an indicator 11 such as a lamp is provided on the protrusions 10. 12 possible winning openings have been opened. An exit 13 for the ball that has entered the prize opening 12 is provided in the collar 8 facing backwards.

On the other hand, at the rear of the mounting board 3, a holding plate 14 facing the back surface of the mounting board 3 is provided to communicate with the opening 2 and to open the lower part 15.
form. The interval 〓15 is preferably approximately equal to the diameter of the sphere (11 mm), for example, approximately 12 mm.

An opening/closing plate 4 which can be opened and closed freely faces the opening 2. The opening/closing plate 4 has its left and right lower ends pivoted to the mounting board 3 via a rotation shaft 16. Further, the opening/closing plate 4 has weights 17, 17 on both left and right ends, and normally the opening/closing plate 4 stands up and closes the opening 2 to maintain the first state in which no balls can enter the prize. Furthermore, a cam portion 18 that projects rearward is provided on the back surface of one side of the opening/closing plate 4, and the cam portion 18 is connected to the drive source 5.
It is connected to the operating lever 19 of.

The drive source 5 consists of a solenoid, etc., and this solenoid is energized when a certain condition is satisfied, such as when a ball enters a specific winning hole. When the solenoid is energized, the plunger 21 is pulled up against the spring 20, and the operating lever 19 moves upward, and the opening/closing plate 4, which is connected to the operating lever 19 by a cam portion 18, rotates forward. The opening 2 is opened and the ball is converted into a second state in which it can easily win.

In the variable prize winning device configured as described above, when the opening 2 is in the second state in which it is opened, the balls flowing down the game board surface are guided to the upper surface of the opening/closing plate 4, and the connection between the mounting board 3 and the holding plate 14 is The space formed between = 15
will fall. Therefore, in the present invention, the ball falling through the field 15 during this period is detected by the photoelectric switch 6 consisting of a light emitting element 6a and a light receiving element 6b.

The light emitting element 6a is, for example, a light emitting diode,
The light receiving element 6b is, for example, a phototransistor. The light-emitting element 6a and the light-receiving element 6b are provided at both ends of the opening 2 so as to face each other. In this case, the light emitting element 6a and the light receiving element 6b constituting the photoelectric switch 6 are provided eccentrically toward the mounting board 3 or toward the holding plate 14 rather than at the center of the interval 15, and the light emitting element 6a
It is also preferable to form a narrow optical path 22 in front of the light receiving element 6b to narrow down the light beam. If the photoelectric switch 6 is arranged as described above and a part of the vicinity of the outer periphery of the sphere blocks the light flux to detect the sphere, the passing of the sphere can be accurately detected. In other words, even when multiple spheres pass successively or overlap, which cannot be detected by detecting light by blocking the light with the diameter of the sphere,
There is always a moment when the trace is cut off near the outer periphery, so multiple balls will not be detected as one. Also,
The present invention detects the plurality of balls that have entered the horizontally long opening 2 as they fall without aligning them at intervals 15, so there is no time difference between winning and detection.

It is possible to assume that a plurality of balls fall at exactly the same height within the interval 15, but this does not pose any problem since the probability that the falling balls will fall at exactly the same height is extremely rare.

When the number of balls detected by the photoelectric switch 6 reaches a predetermined number, the drive source 5 is demagnetized and the opening/closing plate 4 is rotated to return to the first state in which no balls can win.

Although the present invention has been described above with reference to the embodiments shown in the drawings, the present invention is not limited to the above-mentioned embodiments, and can be implemented in any manner as long as the structure described in the claims for utility model registration is not changed. For example, the space may be divided into a plurality of sections, and the ball passing through each section may be detected by a photoelectric switch installed in each section. It may be a configuration.

<Effects of the invention> In this invention, a hole is formed at the back of the mounting board during which the ball falls after entering the opening, and a photoelectric switch consisting of a light-emitting element and a light-receiving element is provided at both ends of this hole to detect the ball. As a result, there is no need for a structure for aligning the balls or a mechanical detection mechanism, which not only simplifies the structure of the variable prize winning device, but also allows the ball entering the opening to be detected accurately and quickly. be able to. That is, according to the present invention, there is no fluctuation in the number of winning balls due to incorrect detection of consecutive winning balls or a time difference between winning and detection.
Therefore, according to the present invention, it is possible to accurately control the variable prize winning device with a predetermined number of winning balls, and as a result, it is possible to play a fair pachinko game, thereby significantly increasing the interest of the pachinko game.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and Fig. 1 is a vertical cross-sectional view of the opening/closing plate attached to the game board with the opening/closing plate open, Fig. 2 is a partially cutaway rear view, and Fig. 3 is a view of the structure shown in Fig. 2. −
A cross-sectional view along the line, FIG. 4 is a front view. DESCRIPTION OF SYMBOLS 1... Variable winning device, 2... Opening, 3... Mounting board, 4... Opening/closing plate, 5... Drive sources 6, 14...
...Press plate, 15...times.

Claims (1)

[Scope of utility model registration request] A horizontally elongated opening is provided in the mounting board, and an opening/closing plate that can be opened and closed is placed in front of the opening, and this opening/closing plate is opened and closed by a drive source to create a first state in which the ball cannot enter the prize and a first state in which the ball can easily enter the prize. In a variable prize winning device that can be converted into a second state in which a second state is possible, a presser plate is provided at the rear of the mounting board and faces the back surface of the mounting board, and communicates with the opening while the lower part is open. A photoelectric switch is constructed by providing a pair of light-emitting elements and light-receiving elements facing each other at both left and right ends of the gap, and in the second state, a ball enters from the opening and falls inside the gap. A variable prize winning device for a pachinko machine, characterized in that a ball entering an opening is detected by blocking light projected from a light emitting element toward a light receiving element.