JP2589894Y2 - Detection switch - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detection switch effectively used for detecting a passing pachinko ball in a pachinko machine.

[0002]

2. Description of the Related Art Conventionally, many detection switches have been used in pachinko machines. For example, a switch for detecting a shortage of a tank for storing balls for prize balls, a switch for detecting release of prize balls and turning on an indicator lamp, a switch for detecting a supply ball, and a switch for detecting the number of remaining balls, etc. Many switches are used, and switches are incorporated in the winning device to detect a winning ball and also to detect the number of jumps.

Although the switch for detecting the shortage of the storage tank is sufficiently used even if it is a mechanical switch, the switch incorporated in the prize winning device is frequently operated, so that a switch having excellent durability is required. Also, since it is necessary to accurately count the winning balls passing at a considerable speed, high accuracy is required, and it is in a state where a mechanical switch cannot sufficiently cope with it.

[0004] For this reason, it has been practiced to use a photosensor as a detection switch, in which a light-emitting element and a light-receiving element are opposed to each other and a passing ball is detected by blocking light.
When incorporated in a winning device, there is a high risk of being affected by light from the outside, and countermeasures have become an important issue. In particular, since the prize winning device is mounted on the front of the game board, it is exposed to the blinking of display lamps and lighting lamps, and receives illumination in the store, and as a usage environment of the photo sensor, Improper. Conventionally, a switch which can be used in such an environment is disclosed in Japanese Patent Application Laid-Open No. 2-8497.
No. 9 has proposed a detection device. This device is characterized in that the photosensor is covered with a light-shielding cover, so that it is not affected by external light.

[0005]

However, one problem of this device is that it detects the passing sphere and at the same time blocks the light from the light emitting element or opens the light blocking element. is there. That is, when the protruding member receives a collision of a passing ball, the leaf spring supporting the protruding ball is flexed, and the rear end portion inserted between the light emitting element and the light receiving element is slid in the front-rear direction so as to enter and exit. However, when a passing ball is continuously received, it may not be able to follow the ball, and there is a problem of lack of accuracy.

The present invention has been conceived in view of such problems and has been devised for the purpose of remedying the problem. A photosensor comprising a light emitting element and a light receiving element is entirely enclosed in a case to prevent intrusion of light from the outside. An object of the present invention is to provide a highly durable detection switch that completely blocks a pachinko ball passing therethrough and prevents erroneous detection. Another object of the present invention is to provide a detection switch capable of detecting a passing pachinko ball not only in one direction but also in two directions.

[0007]

That is, in the present invention, a rotating body is rotatably supported via a support shaft inside a case, and a pachinko machine outside the case is provided through a window which opens a lever extending from a peripheral portion to the case. Projects into the ball passage and supports the pachinko balls passing from two directions of the passage so as to be able to swing equally, and always urges the lever protruding from the window to the neutral position by a return spring stretched between the ball and the case. On the other hand, a light-emitting element and a light-receiving element of a photo sensor are provided inside the case with the rotating body interposed therebetween, and when the rotating body is in the neutral position, a part of the rotating body is interposed between the two elements to shield light. State, or a notch formed in the rotating body is faced and held in the light receiving state, and the pachinko ball is
When passing from any one of the directions, the lever is swung in the passing direction of the ball to rotate the rotating body, and the passing of the pachinko ball is detected by the photo sensor. To provide a switch. Next, the present invention will be described in detail with reference to the illustrated example.

[0008]

FIG. 1 is a front view of a detection switch according to the present invention.
FIG. 2 is a longitudinal side view, and FIG. 3 is a plan view taken along a line AA of FIG. Reference numeral 1 in the drawing is a cover that wraps the entire detection switch, 2 is a rotating body that is rotatably supported on a hollow portion 3 inside the cover with a support shaft 4 as a fulcrum, and 5 is a light emitting element 5a that sandwiches this rotating body. And a photosensor in which the light receiving element 5b and the light receiving element 5b are provided opposite to each other.

The rotating body 2 shown in this embodiment is formed in a fan shape. A bearing 2a is provided at a necessary portion, and a support shaft 4 is penetrated therethrough to support the rotating body 2 freely. A lever 6 extending from the edge of the cover 1 projects out of a vertically long rectangular window 7 formed in the front wall 1a of the cover 1.

The photosensor 5 has a light emitting element 5a and a light receiving element 5b erected on one surface of a substrate 8 so as to be opposed to each other. Thus, the two elements are projected inward so that the fan-shaped rotator 2 is inserted between the two elements.

In the drawing, reference numeral 10 denotes a coil-shaped return spring which is stretched to keep the rotating body 2 at a constant position at all times. This spring is hooked at one end to a shaft 11 planted on a cover and rotated at the other end. It is engaged with a hole 12 formed in the edge of the body 2 and is stretched in a state of tension between the two.
1 are located on a straight line connecting them. In the drawing, reference numeral 13 denotes a slit-shaped notch formed in a portion facing between the light emitting element 5a and the light receiving element 5b when the rotating body 2 is in a normal state by the return spring 10.

The detection switch of the present invention is constructed as described above. In actual use, for example, when used as a detection switch for a prize ball in a prize device, it is disposed vertically as shown in the drawing. The lever 6 protruding from the window 7 of the case is placed along the winning ball passage 14 so as to protrude into the passage.

FIGS. 2 and 3 show this installation state, in which current is supplied through the lead wire 16 and light from the light emitting element 5a is irradiated on the light receiving element 5b through the notch 13 of the rotating body. When the prize ball P that has flown into the prize device (not shown) flows down the passage 14 and collides with the lever 6 as shown in the drawing, the rotator 2 receiving the weight of the sphere moves the lever 2 against the return spring 10. It rotates while lowering 6, allowing the ball to pass. At the same time, as the rotating body 2 rotates, the notch 13 is
Since the rotator moves between a and 5b, the rotator blocks the light of the light emitting element 5a, and one signal is emitted.

When the rotating body 2 rotated by the depression of the lever 6 is released by the passage of the ball P, the rotating body 2 is returned to the original state by the return spring 10, and the notch 13 is again inserted into the two elements 5a and 5a.
b, the winning ball passage 14 is shifted to the pachinko ball P
Each time is caused to flow down, the lowering and raising movements of this lever are repeated, so that the light of the light emitting element 5a is interrupted each time and a signal is emitted.

The photo sensor 5 can be used in any manner whether it receives light from the light emitting element or receives light from the light emitting element. If the rotating body is in a normal state, that is, the return spring 10 is most compressed. When the light from the light emitting element 5a is cut off when it is still in a short state, and the lever 6 swings with the passage of the pachinko ball, the light receiving element 5b can receive light to generate a signal. As shown in FIG. 5, instead of the fan-shaped rotating body 2, a rotating body 15 having a rectangular shielding piece 15a may be used.

The rotating body 15 is supported on the pivot 4 in the same manner as the rotating body 2, and one end of the return spring 10 is always hooked on the shaft 11 and the other end is hooked on the hole 12. May be interposed between the light emitting element 5a and the light receiving element 5b.

By the way, in the above embodiment, an example was described in which the length of the window 7 was aligned with the path 14 of the ball and the lever 6 was pressed down by the ball P falling from above. 6 can be swung in the opposite direction, and by the movement, the notch 13 or the shielding piece 15a provided on the rotating bodies 2 and 15 can be moved to the two elements 5a and 5b.
It can be installed in the opposite direction because it can be moved in and out of the room. Of course, this means that the river 6 can be operated from both directions. For example, when the lever is installed to swing in the horizontal direction, it is possible to operate the ball from either the left or right direction of the lever. The signal can be emitted by retracting and entering the notch 13 or the shielding piece 15a facing between the elements 5a and 5b.

The window 7 formed in the case 1 has a rectangular hole in consideration of the swing range of the lever 6 and has a width that allows the lever 6 to be inserted.
It is preferable that the rotating body 2 that fits into the window is thicker than the width of the window so that the window can be substantially covered and hidden from the inside when supported by the support shaft 4.

[0019]

As described above, the detection switch of the present invention has a light-emitting element and a light-receiving element completely enclosed in a case and is not affected by external light. Therefore, even if the switch is used in a state where the entire switch is exposed, it does not malfunction due to other light, and therefore has an advantage that it can be used in a stable state even when incorporated in a winning device installed on the front of the game board. is there. In addition, the detection switch of the present invention generates a signal through the rotation of the rotating body, so that the photo sensor does not directly contact the pachinko ball, and this switch returns to the rotation of the rotating body and the original state. Since it works only by the expansion and contraction of the spring, there is an advantage that the durability is excellent without any particular wear. Further, since the detection switch is configured to operate in the same manner with respect to the flow of the sphere from two directions, there is an advantage in that the use of the detection switch is small and it can be advantageously used. In addition, since the number of parts is small, it is excellent in manufacturability and can be assembled in a small size. It is particularly advantageous as a detection switch when it is assembled in a limited space of a limited place such as a winning device. There are advantages that can be used.

[Brief description of the drawings]

FIG. 1 is a front view of a detection switch according to the present invention.

FIG. 2 is a vertical side view of a detection switch.

FIG. 3 is a plan view showing a cross section taken along line AA of FIG. 2;

FIG. 4 is a side view of the rotating body.

FIG. 5 is a side view of a rotating body according to another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case 2, 15 Rotating body 4 Support shaft 5 Photosensor 5a Light emitting element 5b Light receiving element 6 Lever 7 Window 10 Return spring 13 Notch part 14 Winning ball passage 15a Shielding piece

Claims (1)

(57) [Scope of request for utility model registration] 1. A rotating body is rotatably supported inside a case via a support shaft, and a lever extending from a peripheral portion of the rotating body projects through a window opened in the case into a passage of a pachinko ball outside the case. A pachinko ball that passes from the same direction is swingably supported, and a lever that projects from the window is always urged to a neutral position by a return spring that is stretched between the case and the case. A light-emitting element and a light-receiving element of a photo sensor are provided opposite to each other with a rotating body therebetween, and when the rotating body is in the neutral position, a part of the rotating body is interposed between the two elements and held in a light-shielding state, or Face the notch to be formed and hold it in the light receiving state,
When the pachinko ball passes through the passage from any one of two directions, the lever is swung in the passing direction of the ball to rotate the rotating body, and the passage of the pachinko ball is detected by the photo sensor. A detection switch characterized by the following.