JPH0683076U - Detection switch - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a detection switch for a pachinko machine having a built-in photo sensor. [Structure] A photo sensor 5 having a light emitting element 5a and a light receiving element 5b arranged in a case is housed in a case 1, and a rotating body 2 which is rotatably supported by a spindle 4 as a fulcrum is housed in the case 1. The lever 6 is housed and inserted between the light emitting element 5a and the light receiving element 5b, and the lever 6 extending from the edge of the rotating body 2 is projected to the outside through a window 7 opened in the case 1. A detection switch in which a notch portion 13 or a shield piece 15a provided on a rotating body is made to face between both the elements 5a and 5b by a return spring 10 stretched between the element and the case 1.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a detection switch effectively used for detecting a pachinko ball passing through a pachinko machine.

[0002]

[Prior art]

 Conventionally, many detection switches have been used in pachinko machines. For example, a switch for detecting the shortage of tanks for storing balls for prize balls, a switch for detecting the discharge of prize balls and turning on the display lamp, a switch for detecting replenishment balls, and a switch for detecting the number of remaining balls. Many switches are used, but the winning device also has a switch built in to detect the winning ball and the number of jumps.

The above-mentioned switch for detecting the shortage state of the storage tank can be sufficiently used even if it is a mechanical switch, but since the switch incorporated in the prize winning device operates frequently, it is required to have excellent durability. In addition, since it is necessary to accurately count winning balls that pass at a considerable speed, high precision is required, and mechanical switches cannot provide sufficient support.

For this reason, a light sensor and a light receiving element are provided as a detection switch so as to use a photosensor that detects a passing ball by blocking light. The risk of being affected by light is high, and countermeasures against it are important issues. In particular, since the prize winning device is equipped on the front of the game board, it is exposed to the flashing lamps and lighting lamps for display, and is also exposed to the lighting in the store. Is inappropriate. Conventionally, a detection device described in Japanese Patent Application Laid-Open No. 2-84979 has been proposed as a switch that can be used in response to such an environment. This device is characterized in that the photo sensor is covered with a light-shielding cover so that it is not affected by external light.

[0005]

[Problems to be solved by the device]

 However, one problem with this device is the support structure of the projecting member that blocks the light from the light-emitting element at the same time as detecting the passing sphere or releases the blocking of the light. That is, when the projecting member receives a collision of a passing ball, the leaf spring supporting the projecting member is bent to interrupt between the light emitting element and the light receiving element, and the rear end is slid in the front-back direction to move in and out. However, there is a problem of lack of accuracy because it may not be able to follow when passing balls are continuously received.

The present invention has been made in view of the above problems and was devised for the purpose of improving the problems. The entire photosensor including a light emitting element and a light receiving element is enclosed in a case to prevent light from entering from the outside. It is an object of the present invention to provide a detection switch with excellent durability that completely intercepts the pachinko balls that pass and prevents false detections. In addition, the present invention is intended to provide a detection switch that can detect passing pachinko balls not only in one direction but also in two directions.

[0007]

[Means for solving problems]

 That is, according to the present invention, a rotating body is rotatably supported inside a case by a supporting shaft, and a lever extending from a peripheral portion is projected to the outside through a window that opens in the case. A light emitting element and a light receiving element are provided in a pair, and a return spring which is always stretched between the case and the case biases the lever protruding from the window to a neutral position, and at the same time, the rotating body is interposed between the light receiving element and the light receiving element. An object of the present invention is to provide a detection switch characterized in that it is held in a light-shielded state by inserting it through or is held in a state where it can receive light by facing a notch formed in the rotating body. The invention will now be described in detail according to the example shown.

[0008]

【Example】

 1 is a front view of a detection switch according to the present invention, FIG. 2 is a vertical side view, and FIG. 3 is a plan view of a cross section taken along the line AA of FIG. Reference numeral 1 in the drawing is a cover that encloses the entire detection switch, 2 is a rotating body that is rotatably supported by a hollow portion 3 inside the cover about a support shaft 4, and 5 is a light-emitting element sandwiching this rotating body. It is a photosensor in which a light receiving element 5b and a light receiving element 5b are provided in a pair.

The rotating body 2 shown in this embodiment is formed in a fan shape, and a bearing portion 2a is provided at a main portion, and a spindle 4 is passed through the bearing portion 2a so as to be supported rotatably. A lever 6 extending from the edge of the cover 1 is projected outside from a vertically long rectangular window 7 formed in the front wall portion 1a of the cover 1.

The photo sensor 5 has a light emitting element 5a and a light receiving element 5b which are vertically arranged on one surface of the substrate 8 so as to oppose each other. The two elements are projected inward so that the fan-shaped rotating body 2 is inserted between the two elements.

In the figure, 10 is a coiled return spring stretched to maintain the posture of the rotating body 2 at a constant position at all times. One end of this spring is hooked on a shaft 11 which is erected on the cover and the other end is rotated. The body 12 is locked in a hole 12 formed in an edge portion of the body 2 and stretched in a tensioned state between the two, and the hole 12 is always positioned on a straight line connecting the support shaft 4 and the shaft 11. Reference numeral 13 in the drawing denotes a slit-shaped notch formed in the portion facing between the light emitting element 5a and the light receiving element 5b when the rotating body 2 is in the normal state by the return spring 10.

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

FIG. 2 and FIG. 3 show this installation state. Now, in a state where electricity is applied through the lead wire 16 and light from the light emitting element 5a is applied to the light receiving element 5b through the cutout portion 13 of the rotating body. When the winning ball P, which has jumped into the winning device (not shown) when set, flows down the passage 14 and collides with the lever 6 as shown, the rotating body 2 receiving the weight of this ball resists the return spring 10. The lever 6 rotates while descending to allow the ball to pass. At the same time, the notch 13 moves from between the two elements 5a and 5b of the photosensor as the rotating body 2 rotates, so that the rotating body shields the light of the light emitting element 5a and one signal is emitted. Will be done.

When the rotating body 2 rotated by pushing down 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 returned again between the elements 5a and 5b. Every time the pachinko ball P flows down the winning ball passage 14, the lever is repeatedly moved down and up to shut off the light from the light emitting element 5a and emit a signal each time.

The method of using the photo sensor 5 is arbitrary whether the light from the light emitting element is in a light receiving state or a light shielding state. If the rotating body is in a normal state, that is, the return spring 10 is most effective. The light from the light emitting element 5a is blocked when it is stationary in a contracted state, and when the lever 6 swings with the passage of a pachinko ball, the light receiving element 5b can receive light to generate a signal. In this case, the fan-shaped rotating body 2 may be replaced with a rotating body 15 having a rectangular shielding piece 15a as shown in FIG.

Similar to the rotating body 2, the rotating body 15 is supported by the pivot 4, and one end of the return spring 10 is always hooked on the shaft 11. 15a may be interposed between the light emitting element 5a and the light receiving element 5b.

By the way, in the above-described embodiment, the example in which the windows 7 are installed in the lengthwise direction of the passage 14 of the sphere and the lever 6 is pushed down by the sphere P falling from above has been described. 6 can be swung in the opposite direction, and the cutout portion 13 or the shield piece 15a provided in the rotating bodies 2 and 15 can be moved in and out from between the elements 5a and 5b by the movement, so that It can be installed in Of course, this means that the river 6 can be operated in both directions. For example, if the lever is installed so that it swings horizontally, the sphere should act from either the left or right direction of this lever. Even if the notch 13 or the shield piece 15a facing between the elements 5a and 5b is retracted and entered, a signal can be emitted.

The window 7 opened in the case 1 is a rectangular hole in consideration of the swinging range of the lever 6, and the width thereof is formed so that the lever 6 can be inserted, while the hollow portion 3 It is advisable to make the rotor 2 that fits into the wall thicker than the width of this window so that when it is supported by the support shaft 4, this window can be substantially covered from the inside.

[0019]

[Effect of device]

 As described above in detail with reference to the embodiments of the present invention, the detection switch of the present invention has the light emitting element and the light receiving element completely enclosed in the case and is not affected by light from the outside. Even if it is used with the whole exposed, it does not malfunction due to other light, so there is an advantage that it can be used in a stable state even when it is installed in the winning device installed on the front of the game board. Further, 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 is used for the rotation of the rotating body and its original state. Since it works only by the expansion and contraction of the spring to be returned, it has the advantage of excellent durability without any particular wear. Further, since the detection switch is configured to act on the flow of the sphere from the two directions in the same manner, there is an advantage that the detection switch can be advantageously used because of its limited use. Also, because it has a small number of parts and can be assembled, it excels in manufacturability and can be assembled in a small size, so it can be used as a detection switch when it is installed in a limited space of a limited part such as a winning device. There is an advantage that it can be used particularly advantageously.

[Brief description of drawings]

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

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

3 is a plan view of a cross section taken along the line AA of FIG.

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

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

[Explanation of symbols]

 1 Case 2, 15 Rotating Body 4 Spindle 5 Photo Sensor 5a Light-Emitting Element 5b Light-Receiving Element 6 Lever 7 Window 10 Return Spring 13 Notch 14 14 Winning Ball Passage 15a Shielding Piece

Claims (1)

[Scope of utility model registration request] 1. A rotator is rotatably supported inside a case by a supporting shaft, and a lever extending from a peripheral edge is projected to the outside through a window that opens in the case, and the photosensor emits light with the rotator interposed. The element and the light receiving element are provided in a pair, and the lever protruding from the window is urged to the neutral position by a return spring which is always stretched between the case and the rotating body between the light receiving element and the light receiving element. A detection switch characterized by being inserted and held in a light-shielded state, or being held in a state capable of receiving light by facing a notch formed in a rotating body.