JPH09114U - Pachinko ball passage detection switch - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To detect a plurality of pachinko balls that closely flow without a gap, one by one, which is highly reliable and free from erroneous detection, and which has low manufacturing cost and high durability. Provide a passage detection switch. A pachinko ball passage detection switch (10) has a frame (12) having a pachinko ball passage (11), a protrusion (13) protruding into the pachinko ball passage (11) and movable back and forth, a first contact (14) and a second contact (14) that function as contacts. And a contact point 15. The rear end portion 13b of the protrusion 13 elastically abuts the arm portion 14a of the first contact 14 formed in a ┏ shape.
The arm portion 14a of the first contact point 14 is formed with a contact portion 14b that is bent to the side opposite to the rear end portion 13b. In the frame 12,
The second contact 15 formed in a ┓ shape on the side opposite to the projection 13 with the arm 14a of the first contact 14 interposed therebetween has its contact arm 15a facing the arm 14a of the first contact 14 in parallel with a required distance. Will be placed.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention relates to a pachinko ball passage detection switch provided in a pachinko ball flow passage of a pachinko machine, and more specifically, when a plurality of pachinko balls pass continuously through the flow passage, they come into close contact with each other. The present invention relates to a pachinko ball passage detection switch that can detect each of the above-mentioned items with certainty and that does not cause a malfunction.

[0002]

[Prior art]

 As is well known, in the case of a pachinko machine, the game board is provided with prize devices and prize devices, and the pachinko balls that are hit on the game board enter the prize devices and prize devices, so-called safe balls. , Various prize ball operations are performed. In addition, other pachinko balls that do not enter the prize-winning equipment or prize-winning device are leaked to the back of the pachinko game board as loose balls. As described above, in the pachinko machine, it is necessary to determine whether the pachinko balls hit on the game board are safe balls or miss balls, and detect the number of them. Therefore, pachinko ball passage detection switches are installed at various places in the pachinko ball flow passage provided on the back side of the pachinko machine, and the pachinko balls are detected by the switches.

Conventional pachinko ball passage detection switches are roughly classified into three types: a micro switch type, an optical sensor type, and a magnetic proximity sensor type. This micro switch type uses the principle of leverage to detect the passage of pachinko balls, and as shown in FIG. 7, the arm 1 arranged on the switch body 4 arranged along the pachinko ball circulation path 2 is used. , Facing the pachinko ball flow passage 2. When the pachinko ball 3 passes in this state, the arm 1 is pressed by the pachinko ball 3, and the contact point of the microswitch main body 4 contacts (turns on) to detect the passage of the pachinko ball 3. In this micro switch type, as shown in the figure, the arm 1 facing the pachinko ball flow passage 2 is set to be long, and the contacts are turned on with a low load.

The optical sensor type includes a pass type and a reflective type, and in the pass type optical sensor, as shown in FIG. 8, a light emitting element 5 and a light receiving element 6 are arranged to face each other with a pachinko ball flow passage 2 interposed therebetween. The light emitted from the light emitting element 5 to the light receiving element 6 is blocked by the pachinko ball 3 to detect the passage of the pachinko ball 3. In addition, as shown in FIG. 9, the reflection type optical sensor has a light emitting element 7 and a light receiving element 8 arranged in a required relationship, and the reflected light emitted from the light emitting element 7 and reflected on the surface of the pachinko ball 3 is a light receiving element. It is set to detect the passage of the pachinko ball 3 by receiving light at 8. As shown in FIG. 10, the magnetic proximity sensor type has a coil 9 that allows passage of the pachinko ball 3 in the pachinko ball flow passage 2, and the pachinko ball 3 that is a magnetic body passes through the coil 9. The pachinko ball 3 is detected by detecting the magnetic change that occurs as a result.

[0005]

[Problems to be solved by the device]

 The pachinko ball passing detection switch used in the pachinko machine here must meet the following requirements. First of all, it is possible to detect each one of the pachinko balls that continuously flow in the pachinko ball flow passage, that is, a plurality of pachinko balls that closely flow without a gap. Second, it has high reliability and does not cause false detection. In other words, if you mistakenly judge multiple winning balls that come in consecutively as one, or if you mistakenly judge that you have not won, you may cause trouble between the customer and the store. The first and second requirements are important.

The third requirement is that the manufacturing cost is low. This is because one pachinko machine almost always uses a plurality of pachinko ball passage detection switches, and if the unit price of the switch is high, the cost of the one pachinko machine increases. The fourth reason is that the durability is high. This is because recent pachinko machines can fire about 100 pachinko balls per minute, and must be able to withstand tens of millions of on / off operations in consideration of the service life of the machine.

[0007] None of the conventional pachinko ball passage detection switches described above can detect the individual pachinko balls that come in continuously as they are, and some means for separating consecutive pachinko balls is required. However, there is a problem that the cost will increase accordingly. For example, in the micro switch type, when a plurality of pachinko balls pass continuously, as a result of the arm being set to a long length, the arm is always pressed and a plurality of pachinko balls pass. Nevertheless, it is detected as one pachinko ball. In addition, in the pass-through type optical sensor type, since multiple pachinko balls pass in close contact with each other, the light emitted from the light emitting element to the light receiving element is always blocked by the pachinko ball. The ball is detected as one pachinko ball.

The above-mentioned photosensor type sensor cannot detect the light of the light emitting element if the light receiving element erroneously detects light other than the corresponding light emitting element or if the light receiving element has dust or dirt. There was a point. In the case of the reflective type, if the surface of the pachinko ball is dirty, it may not be possible to obtain reflected light that can be detected by the light-receiving element, and moreover, the arrangement position of the light-receiving element and the light-emitting element is set. It was difficult.

Further, the magnetic proximity sensor type malfunctions due to an external radio wave or the like or a nearby iron plate or the like, so that there is a problem in that the arrangement position is limited. In a pachinko machine, a plurality of detection switches are arranged in series in the pachinko ball flow passage to detect a plurality of signals by passing one pachinko ball. This magnetic proximity sensor is used. Type switch, if the switches are brought close to each other, they will magnetically interfere with each other and normal detection cannot be performed. Therefore, each switch must be arranged with a required interval, and the arrangement space becomes wider. Problems are also pointed out. As described above, the conventional detection switches described above do not satisfy all of the above four requirements, and therefore, there is awaited a proposal of an appropriate technique that can satisfy these requirements.

[0010]

[Purpose of the invention]

 The present invention has been devised in order to solve the above-mentioned problems inherent in the prior art in a suitable manner, and in particular, the pachinko machine that continuously enters the pachinko ball flow passage of a pachinko machine. It is an object of the present invention to provide a pachinko ball passing detection switch that can detect balls one by one without fail and does not cause malfunction.

[0011]

[Means for Solving the Problems]

 In order to overcome the above-mentioned problems and achieve the intended purpose, the present invention provides a pachinko ball passage that allows passage of a pachinko ball, and always faces the pachinko ball passage in a forward state and presses by passing the pachinko ball. It is provided with a projection that is moved backwards and moves, and a first contact and a second contact that are spaced apart from each other outside the pachinko ball passage. When the projection moves backward, the first contact and the second contact are closed. In a pachinko ball passage detection switch that is configured to open or close and is arranged in the pachinko ball flow passage of a pachinko machine, a length in which the tip of the front end of the protrusion projects toward the pachinko ball passage. Is set to be approximately 1/3 of the radius of the pachinko ball.

Also, in order to overcome the above-mentioned problems and achieve the intended purpose, another invention of the present application is a pachinko ball passage which allows passage of a pachinko ball and a pachinko ball passage which is always in a forward state. The pachinko ball is provided with a projection that is pushed by the passage of the pachinko ball and moves backward, and a first contact and a second contact that are spaced apart from each other outside the pachinko ball passage. A pachinko ball passage detection switch configured to close or open the first contact and the second contact, the pachinko ball passing detection switch being arranged in a pachinko ball flow passage of a pachinko machine, wherein a tip of a front end of the protrusion is the pachinko ball. The length protruding to the side of the passage is the tip of the front end to the gap defined between the pachinko balls that are in close contact with each other when a plurality of pachinko balls continuously flow into the pachinko ball flow passage. Entered The length is set so that the closed state or open state of the first contact point and the second contact point can be changed depending on the time and when the front end portion is pushed backward by the individual pachinko balls and moved backward. It is characterized by

[0013]

【Example】

 Next, a pachinko ball passage detection switch according to the present invention will be described below with reference to the accompanying drawings with reference to preferred embodiments.

FIG. 2 shows a rear view of a pachinko machine in which the pachinko ball passage detection switch according to the embodiment is adopted, and a pachinko ball flow passage 2 shown in the figure is defined on the back surface of the game board 34. This flow passage 2 communicates with a prize winning device or a prize winning device (neither shown) arranged on the surface of the game board 34 through a discharge port 35, and requires a safe ball winning the prize winning prize or the prize winning device. Functions to drain to a location. A pachinko ball passage detection switch 10 is arranged at a required position in the flow passage 2. In the embodiment, the pachinko ball passage detection switch 10 is used for safe ball detection.

As shown in FIG. 1, this pachinko ball passage detection switch 10 has a hole 11 (hereinafter referred to as “pachinko ball passage”) which becomes a part of the pachinko ball flow passage 2 when installed in a pachinko machine. Basically, it has a frame 12 which has a frame 12, a projection 13 which projects into the pachinko ball passage 11 by a required length and can move back and forth, and a first contact 14 and a second contact 15 which are made of a leaf spring and function as contacts. Is composed of.

As shown in FIG. 3, the protrusion 13 of the switch 10 extends in the direction away from the pachinko ball passage 11 and the front end portion 13 a that projects toward the pachinko ball passage 11 side and has a rounded tip. Installed between the rear end 13b and the front end 13a and the rear end 13b. It is elastically abutted on the arm portion 14a of the first contact 14 made of a conductor (preferably a gold alloy leaf spring) formed in the above. That is, as shown in FIG. 3A, the protrusion 13 is constantly urged by the forearm portion 14a so that the stopper portion 13c comes into contact with the frame body 12.

Further, the arm portion 14a with which the rear end portion 13b of the first contact point 14 abuts is formed with a contact portion 14b bent to the side opposite to the rear end portion 13b, and the contact portion 14b functions as a contact point. To do. That is, the arm 12 a of the first contact 14 is sandwiched between the frame 12. The second contact 15 of high quality is arranged so that its contact arm 15a faces the arm 14a of the first contact 14 in parallel at a required interval. The pachinko ball passing detection switch 10 is in the off state. When the projection 13 is pressed by the pachinko ball 3, the arm 14a of the first contact 14 is bent by the projection 13 toward the second contact 15 as shown in FIG. The contact portion 14b comes into contact with the contact arm 15a of the second contact 15. As a result, the detection switch 10 is turned on and the passage of the pachinko balls 3 is detected.

When the stopper portion 13c is in contact with the anti-pachinko ball passageway 11 side of the frame body 12 (the state shown in FIG. 3 (a)), the tip of the front end portion 13a projects toward the pachinko ball passageway 11 side. The protruding length t is set to be 1/3 of the radius r of the pachinko ball. That is, when the projection length t of the protrusion 13 into the pachinko ball passage 11 is set to about t = r / 3, when a plurality of pachinko balls 3 continuously flow down the flow passage 2 as described later. In addition, the projection 13 surely projects into the gap 22 defined between the closely-contacting pachinko balls 3, 3 and each continuous pachinko ball 3 can be detected.

[0019]

Operation of the embodiment

 Next, the operation of the pachinko ball passage detection switch configured as described above will be described in the case where a plurality of pachinko balls 3 continuously flow down into the flow passage 2. In the detection switch 10, when the power is turned on, the arm portion 14a of the first contact 14 is brought into a non-contact state with the contact arm 15a of the second contact 15 as shown in FIG. 3 (a). Has become. Under this condition, when the pachinko balls 3 hit on the game board 34 flow out into the flow passage 2 through the discharge port 35, the safe balls come to the detection switch 10 arranged at a required position in the flow passage 2. At this time, it is assumed that the plurality of pachinko balls 3 are continuously flowing down in the flow passage 2 in a state of being in close contact with each other.

In this state, when the leading pachinko ball 3 passes through the pachinko ball passage 11 of the pachinko ball passage detection switch 10, as shown in FIG. 4A, the protrusion 13 is pressed and the first contact 14 of the first contact 14 is pressed. The contact arm 14a is bent toward the second contact 15. As a result, the contact portion 14b of the first contact 14 comes into contact with the contact arm 15a of the second contact 15, and the switch 10 is turned on to detect the passage of the pachinko ball 3. Next, when the leading pachinko ball 3 passes through the pachinko ball passage 11, as shown in FIG. 4 (b), the protrusion 13 is instantly pushed back by the elastic action of the first contact point 14 and the front thereof. The end portion 13a projects into the gap 22 defined between the continuous pachinko balls 3, 3. As a result, the contact portion 14b is separated from the contact arm 15a of the second contact 15, the switch 10 is turned off, and the passage detection of the leading pachinko ball 3 is completed.

Next, when the second pachinko ball 3 passes through the passage 11, as shown in FIG. 4C, the protrusion 13 is pressed again to turn on the switch 10, and the second pachinko ball 3 is turned on. It is possible to reliably detect the passage of the pachinko balls 3 in the same manner as described above by detecting the passage of the pachinko balls 3. That is, even if a plurality of pachinko balls 3 are in close contact with each other, the projections 13 surely project into the gap 22 defined between them, so that it is possible to reliably detect the continuous pachinko balls 3 one by one. Is possible.

The projection length t of the protrusion 13 into the passage 11 is not limited to t = r / 3, and it is obtained when the front end 13a enters the gap 22 between the pachinko balls and the pachinko ball. The length may be such that the contact / separation state of the first contact 14 and the second contact 15 changes when the front end 13a is pushed by the ball 3. Further, in the above-described embodiment, as shown in FIG. 3B, the edge of the contact portion 14b contacts the contact arm 15a of the second contact 15. As a result, the contact portion between the two is always in a state where dirt is scraped off by the edge, and contact failure can be prevented in advance.

Next, FIGS. 5 and 6 show another embodiment of the pachinko ball passage detection switch according to the present invention. The switch 10 shown in FIG. 5 is a type of switch that opens its contact (is turned off) when the pachinko ball 3 passes through. As shown in the drawing, a through hole 36 is formed in the arm portion 14a of the first contact 14, and the rear end portion 13b of the protrusion 13 is inserted into the through hole 36 so as to be able to move forward and backward. The rear end portion 13b is elastically abutted on the contact arm 15a of the second contact 15, and the stopper portion 13c is always urged to abut on the frame 12. Further, the contact portion 14b formed on the arm portion 14a in this state contacts the contact arm 15a of the second contact 15, so that the switch 10 is in the ON state.

That is, as shown in FIG. 6, when the pachinko ball 3 passes through the pachinko ball passage 11, the protrusion 13 is pressed to separate the second contact 15 from the contact portion 14 b of the first contact 14. Is pressed to turn off the switch 10. Thereby, the passage of the pachinko balls 3 is detected. In this other embodiment as well, similar to the above-described embodiment, it is possible to reliably detect a plurality of consecutive pachinko balls 3 one by one.

[0025]

[Effect of the invention]

 As described above, according to the pachinko ball passage detection switch of the present invention, even if a plurality of pachinko balls flow down continuously in the pachinko ball flow passage of the pachinko machine, the pachinko balls that are in close contact with each other are It has an excellent effect that it is possible to surely detect one by one and no malfunction such as erroneous detection or erroneous detection does not occur.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of a pachinko ball passing detection switch according to a preferred embodiment of the present invention.

FIG. 2 is a rear view showing a schematic configuration of the pachinko machine.

3A and 3B show a main part of the pachinko ball passage detection switch shown in FIG. 1; FIG. 3A is a configuration diagram showing a state in which a projection is not pressed by a pachinko ball; FIG. It is a block diagram showing the state where the projection was pressed by the pachinko ball.

FIG. 4 is an explanatory diagram showing a state in which continuous pachinko ball passing is detected by the pachinko ball passing detection switch shown in FIG. 1 over time.

FIG. 5 is a schematic configuration diagram showing another embodiment of the present invention in a state where the projection is not pressed by the pachinko ball.

6 is a schematic configuration diagram showing a state in which a projection of the pachinko ball passage detection switch shown in FIG. 5 is pressed by the pachinko ball.

FIG. 7 is an explanatory diagram of a conventional microswitch.

FIG. 8 is an explanatory diagram of a conventional pass-through optical sensor switch.

FIG. 9 is an explanatory diagram of a conventional reflection type optical sensor switch.

FIG. 10 is an explanatory diagram of a conventional magnetic proximity sensor switch.

[Explanation of symbols]

 2 Pachinko ball flow passage 3 Pachinko ball 11 Pachinko ball passage 13 Protrusion 13a Front end 14 First contact point (leaf spring) 15 Second contact point (leaf spring)

Claims (2)

[Utility model registration claims] A pachinko ball passage (11) that allows the passage of a pachinko ball (3), and always faces the pachinko ball passage (11) in an advancing state, and is pressed by the passage of the pachinko ball (3). A projection (13) that moves backward, and a first contact (14) and a second contact (15) that are spaced apart from the pachinko ball path (11).
The first contact is provided by the retreat movement of the projection (13).
(14) and the second contact (15) are configured to close or open, and a pachinko ball passage detection switch provided in a pachinko ball flow passage (2) of a pachinko machine, wherein: The length (t) of the tip of the end portion (13a) protruding toward the pachinko ball path (11) is set to be approximately 1/3 of the radius (r) of the pachinko ball (3). A pachinko ball passage detection switch characterized by the following. 2. A pachinko ball path (11) that allows the passage of a pachinko ball (3), and always faces the pachinko ball path (11) in an advancing state, and is pressed by the passage of the pachinko ball (3). A projection (13) that moves backward, and a first contact (14) and a second contact (15) that are spaced apart from the pachinko ball path (11).
The first contact is provided by the retreat movement of the projection (13).
(14) and the second contact (15) are configured to close or open, and a pachinko ball passage detection switch provided in a pachinko ball flow passage (2) of a pachinko machine, wherein: The length (t) of the tip of the end portion (13a) projecting toward the pachinko ball passage (11) is such that a plurality of pachinko balls (3) flowed in the pachinko ball flow passage (2) continuously. The gap defined between pachinko balls (3, 3)
(22), and when the front end (13a) is pushed by each pachinko ball (3) and retreats, the first contact point (13). 14) and the second contact (1
5) A pachinko ball passage detection switch, which is set to a length that can change the closed state or the open state of 5).