JP2533407Y2 - Pachinko ball passage detection switch - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pachinko ball passage detection switch provided in a pachinko ball passage of a pachinko machine, and particularly to a pachinko ball passage detection switch which is excellent in durability and does not malfunction. is there.

As is well known, in a pachinko machine, a prize-winning tool or a prize-winning device is arranged on a game board, and a pachinko ball hit on a game-playing board enters a prize-winning tool or a prize-winning device. In this case, various prize ball operations are performed. Also,
The other pachinko balls that do not enter the prize-winning tool, the prize-winning device, or the like are discharged to the back of the pachinko game board as missed balls. As described above, in the pachinko machine, it is necessary to determine whether the pachinko ball hit on the game board is a safe ball or a missed ball, or to detect the number or the like. Therefore, a pachinko ball passage detection switch is attached to each part of the pachinko ball flow passage provided on the back side of the pachinko machine, and the pachinko ball is detected by the switch.

Conventional pachinko ball passage detection switches are roughly classified into three types: microswitch type, optical sensor type, and magnetic proximity sensor type. This microswitch type detects the passage of a pachinko ball using the principle of leverage, and as shown in FIG. 7, an arm 1 disposed on a switch body 4 disposed along a pachinko ball flow passage 2. In 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 of the micro switch body 4 contacts (turns on) to detect the passage of the pachinko ball 3. In this microswitch type, as shown in the figure, the arm 1 facing the pachinko ball flow passage 2 is set to be long, and the contact is turned on with a low load.

The optical sensor type includes a pass type and a reflective type. As shown in FIG. 8, the pass type optical sensor has a light emitting element 5 and a light receiving element 6 opposed to each other with the pachinko ball flow path 2 interposed therebetween. The light emitted from the light emitting element 5 to the light receiving element 6 is blocked by the pachinko balls 3 to detect the passage of the pachinko balls 3. In addition, as shown in FIG.
The light emitting element 7 and the light receiving element 8 are arranged in a required relationship, and the light reflected from the pachinko ball 3 surface emitted from the light emitting element 7 is received by the light receiving element 8 to detect the passage of the pachinko ball 3. It is set as follows. In the magnetic proximity sensor type, as shown in FIG. 10, a coil 9 that allows the pachinko ball 3 to pass is disposed in the pachinko ball flow passage 2, and the pachinko ball 3 made of a magnetic material passes through the coil 9. The pachinko ball 3 is detected by detecting a magnetic change caused by the above.

Problems to be Solved by the Invention Here, the pachinko ball passing detection switch used in the pachinko machine needs to satisfy the following requirements. First, the pachinko balls continuously flowing in the pachinko ball flow path, that is, a plurality of pachinko balls flowing in close contact with no gap can be detected one by one. Second, it is highly reliable and does not cause erroneous detection. In other words, a plurality of winning balls coming in consecutively may be erroneously determined to be one,
The first and second requirements are important because a false determination that a prize has not been entered may cause trouble between the customer and the store.

A third requirement is that the manufacturing cost is low. In most cases, a single pachinko machine uses multiple pachinko ball passage detection switches.
If the unit price of the switch is high, the cost of the single pachinko machine increases. Fourth, the durability is high. Pachinko machines in recent years
This is because about 100 pachinko balls can be fired per minute, and in view of the service life of the machine, it must withstand tens of millions of on / off operations.

The above-described conventional pachinko ball passage detection switches are capable of continuously inputting pachinko balls one by one.
Since it is not possible to detect the individual pachinko balls, some means for separating continuous pachinko balls is required, and there is a problem that the cost increases accordingly. For example, in the micro switch type,
When a plurality of pachinko balls pass in succession, as a result of the arm being set to be long, the arm is always in a pressed state, and although one pachinko ball has passed, one pachinko ball has passed. It is detected as a ball. Also,
In the pass-through type optical sensor type, a plurality of pachinko balls pass through in close contact with each other, so that the light emitted from the light emitting element to the light receiving element is always blocked by the pachinko balls. Will be detected as pachinko balls.

The light sensor type has a drawback that the light receiving element cannot detect the light of the light emitting element if light other than the corresponding light emitting element is erroneously detected, or if dust or dirt adheres to the light receiving element. . In the case of the reflection type, if the back surface of the pachinko ball is dirty, reflected light that the light receiving element can detect may not be obtained, and it is difficult to set the arrangement position of the light receiving element and the light emitting element. Was.

Furthermore, the magnetic proximity sensor type malfunctions due to an external radio wave or the like or a nearby iron plate or the like, and thus has a drawback in that its arrangement position is limited. In the pachinko machine, a plurality of detection switches are arranged in series in the pachinko ball flow path,
A plurality of signals are detected by passing a single pachinko ball, but this magnetic proximity sensor type performs normal detection by magnetically interfering with each other when switches are brought close to each other. Inevitably, each switch must be arranged at a required interval, and a problem that the arrangement space is widened is pointed out. As described above, since each of the above-described conventional detection switches does not satisfy all of the four requirements, there is a need for a proposal of an appropriate technology that can satisfy the requirements.

Object of the Invention This invention has been devised in view of the problems inherent in the prior art described above, and has been devised in order to appropriately solve the problem. A pachinko ball passage detection switch that satisfies all the four requirements described above is provided. The purpose is to provide.

Means for Solving the Problems In order to overcome the above problems and achieve the intended purpose, the present invention provides a pachinko ball passage that allows the passage of pachinko balls, and always faces the pachinko ball passage in an advancing state. A pachinko ball is provided in a pachinko ball flow passage of a pachinko machine, comprising: a projection that is pressed by the passage of a pachinko ball and moves backward; and a first contact and a second contact that are separately disposed outside the pachinko ball passage. In the pachinko ball passing detection switch described above, the first contact elastically contacts an end extending rearward of the projection, and an end extending forward of the projection always faces the pachinko ball passage. However, the second contact is located behind the first contact, the mechanical contact with the first contact is always released, and the electrical continuity between the two contacts is cut off. Is a contact extending toward the second contact. A portion is formed in a branch, and the pachinko ball passes through the pachinko ball passage to retreat the protrusion and the first contact, thereby bringing the contact portion into contact with the second contact and electrically connecting the first contact and the second contact. The front end of the projection projects into the pachinko ball passage, and the length of the protrusion is such that the head of the front end enters the gap between two pachinko balls that pass continuously through the pachinko ball passage. When returning forward, the first
The electrical connection between the contact and the second contact is set to be disconnected.

Another solution of the present invention for overcoming the above-mentioned problem and achieving the intended purpose is a pachinko ball passage which allows the passage of a pachinko ball, and always faces the pachinko ball passage in an advancing state. And a first contact and a second contact spaced apart outside the pachinko ball passage, and are provided in the pachinko ball flow passage of the pachinko machine. In the pachinko ball passage detection switch, the second contact is disposed rearward of the first contact, and the second contact resiliently contacts the rearwardly extending end of the projection to extend forward of the projection. The contact portion always faces the pachinko ball path, and the first contact has a contact portion extending toward the second contact and always in mechanical contact with the second contact to provide electrical continuity to both contacts. The pachinko ball is branched and the pachinko ball is Wherein through the road protrusion and a second
By retreating the contact, the second contact is separated from the contact portion of the first contact, so that electrical conduction between the first contact and the second contact is interrupted. The length protruding into the pachinko ball path is such that when the head of the front end enters the gap between two pachinko balls continuously passing through the pachinko ball path and returns forward, the first contact point and the first contact point It is characterized in that the dimensions are set so as to provide electrical conduction between the two contacts.

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

FIG. 2 is a rear view of a pachinko machine in which the pachinko ball passage detection switch according to the embodiment is employed, and a pachinko ball flow passage 2 shown in the drawing is defined on the back surface of the game board. The flow passage 2 communicates with a prize-winning tool or a prize-winning device (neither is shown) disposed on the surface of the game board 34 through a discharge port 35, and requires a safe ball that has won the prize-winning device or the prize-winning device. Works to drain to the point. A pachinko ball passage detection switch 10 is provided at a required position in the flow passage 2.
In the embodiment, the pachinko ball passing detection switch 10 is used for safe ball detection.

As shown in FIG. 1, the pachinko ball passage detection switch 10 has a frame 11 having a hole 11 (hereinafter, referred to as a "pachinko ball passage") which is a part of the pachinko ball flow passage 2 when disposed in a pachinko machine. It basically comprises a projection 12, which projects into the pachinko ball path 11 by a required length and is movable forward and backward, and a first contact 14 and a second contact 15 which are made of a leaf spring and function as contacts.

As shown in FIG. 3, the projection 13 of the switch 10 has a front end 13 which projects toward the pachinko ball passage 11 and has a rounded tip.
a, a rear end 13b extending in a direction away from the pachinko ball path 11, and a flange-shaped stopper 13c provided between the front end 13a and the rear end 13b. The rear end 13b of the projection 13 elastically contacts the arm 14a of the first contact 14 made of a conductor (preferably a leaf spring made of a gold alloy). That is, as shown in FIG. 3A, the projection 13 is constantly urged by the arm portion 14a so that the stopper portion 13c abuts on the frame 12.

Further, a contact portion 14b bent to the opposite side to the rear end portion 13b is formed on the arm portion 14a with which the rear end portion 13b of the first contact 14 contacts, and the contact portion 14b functions as a contact. That is,
The frame 13 has a projection 13 with an arm 14a of the first contact 14 interposed therebetween.
On the opposite side, a second contact 15 made of a conductor (preferably a leaf spring made of gold alloy) is formed so as to face its contact arm 15a in parallel with the arm 14a of the first contact 14 at a required interval. (Pachinko ball passing detection switch 10
Is off). When the projection 13 is pressed by the pachinko ball 3, the arm 13a of the first contact 14 is bent toward the second contact 15 by the projection 13 as shown in FIG.
The contact portion 14b of the contact 14 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 ball 3 is detected.

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

Next, the operation of the pachinko ball passing detection switch configured as described above will be described with respect to a case where a plurality of pachinko balls 3 continuously flow down the flow passage 2. The detection switch 10
Is the arm 14a of the first contact 14 in the power-on state.
Is a contact arm 15a of the second contact 15 as shown in FIG.
In a non-contact state. Game board 34 under this
The pachinko balls 3 that have been ejected into the passageway 2 through the outlet 35
The safe ball arrives at the detection switch 10 disposed at a required portion of the flow passage 2 when the safety ball flows out. At this time, the flow passage 2
It is assumed that a plurality of pachinko balls 3 are continuously flowing down in a state where they are in close contact with each other. In this state, the top pachinko ball 3
When the ball passes through the pachinko ball passage 11 of the pachinko ball passage detection switch 10, the projection 13 is pressed and the contact arm 14a of the first contact 14 is bent toward the second contact 15 as shown in FIG. Will be tuned. As a result, the contact portion 14b of the first contact 14 contacts the contact arm 15a of the second contact 15, the switch 10 is turned on, and the passage of the pachinko ball 3 is detected. Next, when the leading pachinko ball 3 has passed through the pachinko ball path 11, as shown in FIG.
It is instantly pushed back under the elasticity of 14 and its front end 13
a protrudes into a gap 22 defined between successive pachinko balls 3,3. As a result, the contact portion 14b is connected to the contact arm 15a of the second contact 15.
, The switch 10 is turned off, and the detection of the passage of the leading pachinko ball 3 is completed.

Next, when the second pachinko ball 3 passes through the passage 11, the projection 13 is pressed again to turn on the switch 10 as shown in FIG. Is detected, and the pachinko ball 3 is surely detected in the same manner as described above.
Can be detected. That is, even if the plurality of pachinko balls 3 are in close contact with each other, the projections 13 reliably project into the gaps 22 defined therebetween, so that it is possible to reliably detect the continuous pachinko balls 3 one by one. It becomes possible.

The length t of the projection 13 protruding into the passage 11 is not limited to t = r / 3, and is different from when the front end 13a enters the gap 22 between the pachinko balls and when the pachinko balls 3 It is only necessary that the length is such that the contact / separation state of the first contacts 14 and 15 changes when the end 13a is pressed. Further, in the above-described embodiment, as shown in FIG. 3 (b), the edge of the contact portion 14b contacts the contact arm 15a of the second contact 15. As a result, the contact portions of the two are always in a state in which dirt is scraped off by the edge, and a poor contact can be prevented beforehand.

Alternative Device FIGS. 5 and 6 show an embodiment of a pachinko ball passage detection switch according to another device of the present invention. Fifth
The switch 10 shown in the figure is a switch of a type in which a contact is opened (turned off) when the pachinko ball 3 passes.
As shown in the drawing, a through hole 36 is formed in the arm portion 14a of the first contact point 14, and the rear end 13b of the projection 13 is inserted into the through hole 36 so as to be able to advance and retreat. The rear end portion 13b elastically contacts the contact arm 15a of the second contact point 15, and the stopper portion 13c is always
It is urged to abut the 12. In this state, the contact portion 14b formed on the arm portion 14a is in contact with the contact arm 15a of the second contact 15.
, The switch 10 is turned on.

That is, as shown in FIG. 6, when the pachinko ball 3 passes through the pachinko ball passage 11, the projection 13 is pressed and
The switch 15 is turned off by pressing the contact 15 in a direction away from the contact portion 14b of the first contact 14, whereby
The pachinko ball 3 is configured to detect passage. In this alternative device, a plurality of continuous pachinko balls 3 can be detected one by one, as in the above-described embodiment.

Effects of the Invention The pachinko ball passage detection switch of the present invention can detect successive pachinko balls one by one without erroneous detection. In addition, since the structure of the movable portion is simple, the durability is excellent, and since the mass production is possible, the cost can be reduced. Furthermore, because of the mechanical configuration, a malfunction does not occur due to external light, magnetic noise, or the like, and a plurality of switches can be arranged in close proximity. That is, all of the above four requirements required as a switch for a pachinko machine are provided.

[Brief description of the drawings]

1 is an overall configuration diagram of a pachinko ball passage detection switch according to a preferred embodiment of the present invention, FIG. 2 is a rear view showing a schematic configuration of a pachinko machine, and FIG. 3 is a pachinko ball shown in FIG. 3 (a) is a configuration diagram showing a state in which the projection is not pressed by a pachinko ball, and FIG. 3 (b) is a configuration diagram showing a state where the projection is not pressed by a pachinko ball. FIGS. 4 (a) to 4 (c) are explanatory diagrams showing the state in which continuous pachinko ball passing is detected by the pachinko ball passing detection switch shown in FIG. 1 over time, and FIGS. And FIG. 6 is a schematic diagram showing another embodiment of the present invention in a state where the projection is not pressed by the pachinko ball.
The figure is a schematic configuration diagram showing a state in which the 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 reflective optical sensor switch, and FIG. It is explanatory drawing of the conventional magnetic proximity sensor switch. 2 ... Pachinko ball flow passage, 3 ... Pachinko ball passage, 10 ... Pachinko ball passage detection switch, 11 ... Pachinko ball passage, 13
... Projection, 13a ... Front end, 13b ... Rear end, 14 ...
1st contact (leaf spring), 14b ... contact part, 15 ... 2nd contact (leaf spring).

Claims (2)

(57) [Scope of request for utility model registration] 1. 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 pachinko ball distribution device for a pachinko machine, comprising: a projection (13) that retreats; and a first contact (14) and a second contact (15) that are separately disposed outside the pachinko ball passage (11). In the pachinko ball passage detection switch disposed on the road (2), the first contact (14) elastically contacts an end (13b) extending rearward of the projection (13), and The end (13a) extending forward of (13) is always pachinko ball passage (11)
The second contact (15) is located behind the first contact (14), and the mechanical contact with the first contact (14) is always released, and the two contacts (14, 15) are released. The first contact (14) has a contact portion (14b) extending toward the second contact (15), and the pachinko ball (3) Moves the projection (13) and the first contact (14) backward through the pachinko ball path (11), so that the contact portion (14b) comes into contact with the second contact (15) and the first contact (14) and the second contact point (15) are electrically connected to each other, and the length (t) of the protrusion (13) at which the front end (13a) protrudes into the pachinko ball path (11) is determined by the length of the pachinko ball. Two pachinko balls (3,
When the head of the front end portion (13a) enters the gap (22) in 3) and returns forward, the electrical continuity between the first contact point (14) and the second contact point (15) is cut off. A pachinko ball passing detection switch characterized by being set to dimensions. 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 pachinko ball distribution device for a pachinko machine, comprising: a projection (13) that retreats; and a first contact (14) and a second contact (15) that are separately disposed outside the pachinko ball passage (11). In the pachinko ball passage detection switch disposed on the road (2), the second contact (15) is disposed behind the first contact (14), and an end extending to the rear of the protrusion (13). Department (13
b), the end (13a) extending forward of the projection (13) always faces the pachinko ball path (11), and the first contact (14) is A contact portion (14b) extending toward the two contacts (15), always in mechanical contact with the second contact (15), and providing electrical continuity to the two contacts (14, 15); When the pachinko ball (3) passes through the pachinko ball path (11) and retreats the protrusion (13) and the second contact (15), the second contact (15) is connected to the first contact (14). The projection (13) is separated from the contact portion (14b) to cut off electrical continuity between the first contact (14) and the second contact (15). The length (t) projecting into the ball passage (11) is such that two pachinko balls (3,
When the head of the front end portion (13a) enters the gap (22) of 3) and returns forward, electrical conduction is provided between the first contact point (14) and the second contact point (15). A pachinko ball passage detection switch that is set to dimensions.