JP2887661B2 - Pachinko ball detector for pachinko machines - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pachinko ball detecting device for detecting a hit ball, an outgoing ball, a safe ball, and the like on a board of a pachinko machine.

[0002]

2. Description of the Related Art Conventionally, as a pachinko ball detecting device for detecting a ball hitting a pachinko ball, an outgoing ball entering an out hole, a safe ball entering a safe hole, etc., on the surface of the pachinko machine, the pachinko machine is installed along the pachinko machine surface. A matrix sensor that arranges transmission lines and reception lines in a matrix on a glass substrate arranged in a matrix is provided, and a device that detects a pachinko ball by outputting a signal of a constant frequency from the transmission circuit to each transmission line in order is proposed (See, for example, JP-A-4-189380).

[0003]

In this pachinko ball detection device, when a signal of a constant frequency is sequentially output from a transmission circuit to each transmission line, an electromotive force is generated in a reception line electromagnetically coupled to the transmission line, In the vicinity of the intersection of the transmission line and the reception line through which the pachinko ball has passed, the passage of the pachinko ball is detected by using a phenomenon in which an electromotive force generated in the reception line changes due to a change in impedance.

However, this kind of pachinko ball detecting device is
The amount of change in electromotive force generated by the approach of pachinko balls is relatively small, and is therefore susceptible to noise.
In addition, when the pachinko ball approaches the vicinity of the intersection between the transmission line and the reception line, a change in the voltage on the reception line due to a change in impedance occurs not only in the other reception lines adjacent to the pachinko ball but also in the detection line. There was a problem that the error was large and it was difficult to accurately detect the approach of the pachinko ball.

Therefore, the present inventor has disclosed in Japanese Patent Laid-Open No. 7-1321.
No. 55, etc., a phenomenon in which an oscillation circuit is connected to a ball detection unit made of a transparent conductor provided in a matrix on a glass substrate, and the frequency of a signal output from the oscillation circuit changes when passing a pachinko ball. A pachinko ball detection device that detects the passage of a pachinko ball using the proposed method has been proposed.

Although this pachinko ball detection device can detect a pachinko ball to the effect, a scanning circuit is connected between each ball detection unit and an oscillation circuit, and a ball detection unit made of a transparent conductor provided in a matrix is provided. Since scanning is performed vertically and horizontally and connected to the oscillation circuit, the oscillation operation of the oscillation circuit is likely to be unstable due to the influence of the multiplexer and the like of the scanning circuit, and the operation of detecting a pachinko ball tends to be inaccurate. there were.

The present invention has been made in view of the above points, and provides a pachinko ball detecting device capable of accurately detecting a hit ball, an out ball, a safe ball, etc. of a pachinko ball on a board of a pachinko machine. The purpose is to do.

[0008]

Means for Solving the Problems In order to achieve the above object, a pachinko ball detecting device according to the present invention is a pachinko ball detecting device for detecting pachinko balls on a board of a pachinko machine. A ball detection unit in which a large number of transparent conductive lines are arranged in a matrix on a glass substrate provided with each other, and each transparent conductive line is connected to each resonance circuit, and a pachinko ball approaches the transparent conductive line. A plurality of oscillation circuits that change the oscillation frequency when passing, a plurality of FM detectors connected to the output side of each oscillation circuit to detect a frequency signal from the oscillation circuit, and an output side of each FM detector A plurality of waveform shaping circuits connected to each other for shaping the waveform of the signal from the FM detector, a microcomputer for inputting a pachinko ball detection signal output from the waveform shaping circuit, and a plurality of waveform shaping circuits Circuit and is connected between the microcomputer and the connection switching circuit for connecting by switching the output side of the waveform shaping circuit in order to the microcomputer, each of
Connected to the oscillation circuit and does not perform pachinko ball detection operation
Prohibit signal is output to the oscillation circuit of the transparent conductive line to oscillate
And a prohibition circuit for prohibiting .

According to a second aspect of the present invention, each of the oscillation circuits and the FM detector connected to each of the transparent conductive lines is housed in each of the integrated circuits.

[0010]

[0011]

In the pachinko ball detecting device having such a configuration, a ball detecting portion made of a transparent conductor is provided as a matrix of a large number of transparent conductive lines on a glass substrate covering the board surface. The line is connected to each oscillation circuit. The oscillation frequency signal of the oscillation circuit is sent to the FM detector, and is sent to the microcomputer via the waveform shaping circuit and the connection switching circuit. The connection switching circuit sets the output side of the FM detector of each transparent conductive line in advance. The connection is switched so as to connect to the microcomputer in the registered order.

When a pachinko ball is driven into the board and the pachinko ball approaches or passes near a specific position of the vertical / horizontal transparent conductive line of the ball detector, the reactance or / and capacitance of the resonance circuit changes, The oscillation frequency of the oscillation circuit connected to the transparent conductive line changes, that is, frequency shift occurs due to the approach and passage of the pachinko ball.

The frequency signal output from the oscillation circuit is F
The signal sent to the M detector is detected, and the signal output from the detector is sent to a microcomputer through a waveform shaping circuit and a connection switching circuit. The microcomputer detects the input, for example, a high-level signal to detect a pachinko ball. It is input as a signal and totals the number of pachinko balls hit, the number of safe balls, the number of out balls and the like.

As described above, instead of connecting the scanning circuit for scanning the vertical and horizontal transparent conductive lines of the ball detecting section vertically and horizontally to the preceding stage of the oscillation circuit and scanning, the connection switching circuit provided at the subsequent stage of the waveform shaping circuit. As a result, the circuit for detecting each transparent conductive line is switched and the microcomputer captures the ball detection signal, so that the oscillation circuit does not become unstable due to the influence of the scanning circuit, and the oscillation operation is stably performed. Can do
Pachinko balls can be accurately and stably detected.

Further, if each oscillation circuit and FM detector connected to each transparent conductive line are housed in an integrated circuit, they can be connected with the shortest distance, and can be hardly affected by outside.

Furthermore, a prohibition circuit for prohibiting oscillation is connected to each of the oscillation circuits, and a prohibition signal is output to the oscillation circuit of the transparent conductive line that does not perform the pachinko ball detection operation to prohibit oscillation. In addition, a circuit for actually detecting a ball can be stably detected without being affected by another oscillation circuit.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

In the pachinko machine, as shown in a perspective view in which the glass door is opened in FIG. 1, a guide rail 2 is mounted on a board 1 and pachinko balls are passed through a driving passage 3 provided on the left side of the guide rail 2. It is stamped into the board surface 1. Board 1
Are provided with a plurality of safe holes 4 at arbitrary locations, and a number of nails for playing balls are driven. In the center, a slot machine type display is provided, when a pachinko ball enters a specific safe hole, the display of the display rotates / stops, and the combination of numbers and patterns is set in advance In addition, a prize winning device 5 is provided in which a large number of pachinko balls are used as safe prizes. Further, an out hole 6 is provided in a lower portion of the board surface 1.

The glass door covering the board surface 1 has an outer glass 7 and an inner glass attached to a glass frame 8, and the inner glass has a matrix shape, that is, a large number of vertically transparent conductive lines 1.
1 and a horizontal transparent conductive line 12 at a predetermined interval on a glass substrate.

That is, as shown in FIG.
A horizontal transparent conductive line 12 is adhered on the upper side, and an insulating sheet 13 is put on the horizontal transparent conductive line 12.
A number of vertically transparent conductive lines 11 are attached on the substrate 3 at regular intervals. Then, an insulating sheet 14 is placed on the vertical transparent conductive line 11, a transparent conductive film 15 for shielding is placed on the insulating sheet 14, and a protective glass 16 is adhered thereon.

The vertical transparent conductive line 11 and the horizontal transparent conductive line 12 are arranged in a non-contact state with each other, and constitute a safe ball detecting unit 30 described later. The transparent conductive film for shielding 15 is attached to substantially the entire surface of the glass substrate, and
Connected to ground via PC, vertical transparent conductive line 1
1 and the horizontal transparent conductive line 12 are shielded from the outside, thereby preventing a malfunction when a metal object or the like approaches from the outside.

As the glass substrate 10 and the protective glass 16, a plate glass having a thickness of about 1.4 mm is used. As the insulating sheets 13 and 14, a transparent resin sheet having a thickness of about 0.05 mm is used. 11. Transparent transparent conductive line 1
2, and a thickness of about 0.0
5 mm of ITO (indium tin oxide) is used.

[0024] ITO typically has a surface resistance of 150 ohms per unit area. For this reason, the signal level at which a pachinko ball is detected at a position far from the connection end between the vertical transparent conductive line 11 and the horizontal transparent conductive line 12 is lower than that at the time of detection at a close position.

Therefore, no matter where the pachinko ball is detected in each line, as shown in FIG. 5, the line width increases as the distance from the connection terminal portion 12b increases so that a signal of the same level can be obtained. It is formed to be wide. Also,
As the length of the transparent connection line 12a connecting each connection terminal portion 12b and each horizontal transparent conductive line 12 increases, the width thereof increases, the resistance value of each connection line becomes equal, and the signal of the same level is obtained. Is to be obtained.

The connection end of each of the vertical transparent conductive lines 11 and the horizontal transparent conductive lines 12 is connected to each conductive line of an FPC (flexible printed board) on the side or upper part of the glass door. For example, the connection portion of the vertical transparent conductive line 11 is
As shown in FIG. 4, silver paste 18 is printed on the end of the vertical transparent conductive line 11, carbon paste 19 is printed on the silver paste 18, the tip of the FPC 17 is inserted into the end, and each conductive material of the FPC 17 is inserted. The parts are brought into contact so that good conductivity is obtained, and the tip of the base part of the FPC is bonded with an adhesive. The ends of the horizontal transparent conductive lines 12 are connected to the FPC in a similar structure.

The vertical and horizontal transparent conductive lines 11 and 12 in the form of a matrix are provided in a portion of the board 1 covering the area where the plurality of safe holes 4 are provided.
Resonance circuits of the oscillation circuit 41 of the detection IC circuit 31 are connected to 1 and 12, respectively.

Further, as shown in FIG. 2, in the driving path 3 along the pachinko ball guide rail 2, as the ball detecting section 37, two transparent conductive films 20 and 21 are provided on the upstream and downstream sides of the path. Are arranged at intervals. The transparent conductive films 20 and 21 are also attached on the glass substrate 10 like the vertical and horizontal transparent conductive lines 11 and 12, and are connected to the FPC. Further, as an out ball detecting unit 38 for detecting an out ball entering the out hole 6 in the lower part of the board 1, the out hole 6
, Two transparent conductive films 22 and 23 are arranged at intervals on the upstream side and the downstream side.

The transparent conductive films 22 and 23 are also attached to the glass substrate 10 like the vertical and horizontal transparent conductive lines 11 and 12, and are connected to the FPC. in this way,
When two transparent conductive films 20 and 21 are provided for detecting a hit ball and two transparent conductive films 22 and 23 are provided for detecting an out ball, the pachinko ball does not flow back and becomes a hit ball or an out ball. By subtracting the number of balls, the number of hit balls and the number of out balls can be accurately detected.

FIG. 6 is a block diagram of the pachinko ball detecting device. Numeral 30 denotes a safe ball detecting unit composed of a matrix-shaped vertical transparent conductive line 11 and a horizontal transparent conductive line 12, and each transparent conductive line 11, 12 is an FP.
The oscillation circuit 41 of each detection IC circuit 31 via C17
Connected to the resonance circuit.

As shown in FIG. 7, each detection IC circuit 31 includes an oscillation circuit 41, an FM detector 42, an amplifier 43,
The FC 45 and the prohibition circuit 44 are formed in a single integrated circuit. Each detection IC circuit 41 is connected to each of the transparent conductive lines 11 and 12 and each of the hit ball detection units 37 and the out ball detection unit 38. Connected. Thus, the oscillation circuit 41, F
By housing the M detector 42, the amplifier 43, and the AFC 45 in an integrated circuit, the connection length between each circuit is minimized,
It is possible to reduce the influence of the induction noise or the like from the outside.

The FM detector 42 is connected to the output side of the oscillation circuit 41, and the output side of the FM detector 42 is connected to the waveform shaping circuit 34 via the amplifier 43. The oscillation circuit 41 has an AFC for automatically adjusting the oscillation frequency to a specific frequency.
45, and a prohibition circuit 44 for stopping the oscillation of the oscillation circuit 41 connected to the transparent conductive line other than the transparent conductive line for taking in data.

The output side of the amplifier 43 of each detection IC circuit 31 is connected to a connection switching circuit 35 via a waveform shaping circuit 34.
Is connected to the input side. The connection switching circuit 35 includes a switching circuit 32 controlled by the microcomputer 25 described later.
And an AND gate 33 that receives a signal output from the switching circuit 32 and opens a gate in response to the signal.

The microcomputer 25 outputs a control signal to the connection switching circuit 35 to output each of the transparent conductive lines 1.
The oscillation circuits 41 of the detection IC circuits 31 of 1 and 12 are sequentially operated to operate so as to sequentially take in the detection signals of the balls of each transparent conductive line. By registering the position of the safe hole 4 in the microcomputer 25 in advance, The vertical transparent conductive line 11 and the horizontal transparent conductive line 12 other than those corresponding to the positions of the safe holes 4 are skipped to speed up data acquisition.

In each detection IC circuit 31, a pachinko ball is
When approaching or passing through either the vertical transparent conductive line 11 or the horizontal transparent conductive line 12, the oscillation circuit 41 connected thereto
The reactance or capacitance of the resonance circuit changes, and the oscillation frequency of the oscillation circuit 41 changes. The oscillation frequency of the oscillation circuit 41 is, for example, 10.7 MHz,
A change in the frequency of about 500 Hz occurs when the pachinko balls approach or pass. The change in the frequency, that is, the frequency modulation is sent to the FM detector 42 and detected.

The detection output signal of the FM detector 42 is subjected to waveform shaping through an amplifier 43 and a waveform shaping circuit 34 to become a signal indicating the detection of a pachinko ball. The detection signal is sent to the microcomputer 25 through a connection switching circuit 35. Is entered.

CPU 26 of microcomputer 25
Controls the connection switching circuit 35 based on the program data stored in the ROM 27 to sequentially connect the detection IC circuits 31 of the transparent conductive lines 11 and 12 of the safe ball detection unit 30 to the input / output circuit 29, and from there, The pachinko balls entering the safe hole 4 registered in advance are detected by taking in the detection signal of the above, and the counting is performed.

Similarly, the CPU 26 also takes in the hit ball detection signal and the out ball detection signal from the hit ball detection unit 37 and the out ball detection unit 38, which will be described later, and counts the number of hit balls and the number of out balls. I do.

As shown in FIG. 2, the hit ball detecting section 37 is composed of two transparent conductive films 20 and 21 provided in the driving passage 3, and each of the transparent conductive films 20 and 21 has its own It is connected to the oscillation circuit 41 of the detection IC circuit 31. When a pachinko ball approaches or passes through the transparent conductive films 20 and 21, the oscillation frequency of the oscillation circuit 41 changes due to a change in the reactance or capacitance of the resonance circuit.

An output side of the oscillation circuit 41 is connected to an FM detector 42 for detecting a frequency shift, that is, a frequency modulation component. An output side of the FM detector 42 is connected to a microcomputer via an amplifier 43 and a waveform shaping circuit 34. 25 input / output circuits 29.

CPU 26 of microcomputer 25
When the downstream transparent conductive film 21 detects a pachinko ball after the upstream transparent conductive film 20 detects a pachinko ball, one hit ball is added, and conversely, the downstream transparent conductive film 21 After detecting the pachinko ball, when the transparent conductive film 20 on the upstream side detects the pachinko ball, one hit ball is subtracted,
Perform arithmetic processing.

The out-ball detecting section 38 is composed of two transparent conductive films 22 and 23 provided below the board 1, and each of the transparent conductive films 22 and 23 oscillates in each detection IC circuit 31 in the same manner as described above. Each is connected to the resonance circuit of the circuit 41. When a pachinko ball approaches or passes through the transparent conductive films 22 and 23, the oscillation frequency of the oscillation circuit 41 changes due to a change in reactance or capacitance of the resonance circuit.

The output side of the oscillation circuit 41 is connected to an FM detector 42 for detecting a change in frequency, that is, a frequency modulation component. The output side of the FM detector 42 is connected to a microcomputer via an amplifier 43 and a waveform shaping circuit 43. 25 input / output circuits 29.

CPU 26 of microcomputer 25
Means that when the upstream transparent conductive film 23 detects a pachinko ball and then the downstream transparent conductive film 22 detects a pachinko ball, one out ball is added, and conversely, the downstream transparent conductive film 2
2 detects the pachinko ball, the transparent conductive film 23 on the upstream side
When a pachinko ball is detected, an arithmetic process is performed so that one out ball is subtracted.

An operation monitoring circuit 39 is connected to the microcomputer 25. The operation monitoring circuit 39 is constituted by a CPU or the like, and inputs data of the number of hit balls, the number of safe balls, and the number of out balls sent from the microcomputer 25, and the total of the number of safe balls and the number of out balls for a predetermined time is the number of hit balls. Monitor whether it matches. If the total number of safe balls and the number of out-balls does not match the number of hit balls due to double detection by pachinko ball bouncing or the like, the number of hit balls, the number of safe balls, or the number of safe balls at that time is stored. The number of out balls is subtracted or added.

Since each of the detection IC circuits 31 needs to be disposed close to the safe ball detection unit 30, the hit ball detection unit 37, and the out ball detection unit 38, as shown in FIG. Small mounting circuit 5 together with connection switching circuit 35
As 0, it is disposed on the inner edge of both glasses of the glass door.
Then, the microcomputer 25, the operation monitoring circuit 3
9. The communication circuit 40 is installed on the back side of the pachinko machine.

Next, the operation of the pachinko ball detection device having the above configuration will be described.

First, the apparatus is set to the registration mode, and the safe hole 4 is set.
And the position of the winning combination device 5 are set and registered in the microcomputer 25. In this case, the glass door of the pachinko machine is opened, and as shown in FIGS. 9 and 10, a jig 9 made of a pachinko ball B with a support portion is placed on the life nail just above each safe hole 4. The jig 9 is formed so as to always enter the safe hole 4 when the pachinko ball reaches the position of the ball B supported by the nail and the support. Also, a box-shaped jig 99 made of steel plate is placed directly above the winning combination device 5.

Then, the glass door is closed, and the CPU 25
A predetermined registration mode is executed, the connection switching circuit 35 is operated, and each of the transparent conductive lines 11, 1
2 from the detection IC circuit 31 in order,
The position of the intersection of the vertical and horizontal transparent conductive lines to which the detection signal is input is recognized, and the position is registered as the position (coordinate position) of the safe hole 4.

As described above, the position of the safe hole 4 and the position of the winning accessory device 5 can be registered by the registration mode processing using the jigs 9 and 99, so that the positions of the safe hole and the winning accessory device can be registered. The same pachinko ball detection device can be applied to a plurality of different types of pachinko machines.

In the operation mode, when the pachinko machine is used and the pachinko balls are driven through the driving passage 3, the pachinko balls first approach and pass through the transparent conductive film 20, and then the transparent conductive film thereon. By approaching / passing through 21, the hit ball detection unit 37 detects the hit ball.

That is, when the pachinko ball approaches and passes through the transparent conductive film 20, the reactance or capacitance of the resonance circuit of the oscillation circuit 41 changes, and the oscillation frequency changes, thereby performing frequency modulation. This frequency modulation is extracted by the FM detector 42, the signal is amplified by the amplifier 43, the waveform is shaped by the waveform shaping circuit 34, and the ball detection signal is taken into the microcomputer 25.

Next, when the pachinko ball approaches or passes through the transparent conductive film 21, the oscillation circuit 41
Oscillation frequency changes, and the pachinko ball detection signal is FM
The signal is sent to the microcomputer 25 via the detector 42, the amplifier 43, and the waveform shaping circuit 34.

When the detection signal of the downstream transparent conductive film 21 is input immediately after the detection signal of the upstream transparent conductive film 20, the microcomputer 25 adds one hit ball. On the other hand, when the upstream transparent conductive film 20 detects a pachinko ball after the downstream transparent conductive film 21 detects a pachinko ball, one hit ball is subtracted.

Therefore, even when the pachinko balls hit on the board 1 hit the nails and return to the driving path 3, the number of hits can be corrected and the accurate number of hits can be measured.

On the other hand, in the safe ball detecting section 30 composed of each vertical transparent conductive line 11 and each horizontal transparent conductive line 12, the oscillation circuit 41 of each vertical transparent conductive line 11 and each horizontal transparent conductive line 12 is connected. , One oscillation circuit 41 whose oscillation is not inhibited by the inhibition circuit 44 is connected to the connection switching circuit 3.
5, the signal is input to the FM detector 42, the signal from the FM detector 42 is sent to the connection switching circuit 35 via the amplifier 43 and the waveform shaping circuit 34, and the connection switching circuit 35 Are switched in the order in which the input circuits are registered, and the signals are sequentially transmitted to the microcomputer 25.
It is taken in.

When a pachinko ball driven into the board 1 enters a certain safe hole 4, the reactance or capacitance of the resonance circuit of the oscillation circuit 41 connected to the vertical and horizontal transparent conductive lines 11 and 12 intersecting at that portion. Changes,
The oscillation frequency changes and frequency modulation is performed. The frequency modulation component is extracted by the FM detector 42, the signal is amplified by the amplifier 43, and the waveform is shaped by the waveform shaping circuit 34. Then, the detection signal is taken into the microcomputer 25 through the connection switching circuit 35.

At this time, the CPU 26 determines that a pachinko ball has entered the safe hole and adds one to the number of safe balls. Also, the driven pachinko ball is the winning character device 5
In the same manner as described above, the detection is performed by a change in the frequency of the oscillation circuit 41 of each transparent conductive line of the safe ball detection unit 30, and the detection signal is input to the microcomputer 25.

On the other hand, when the shot ball does not enter the safe hole 4 but enters the out hole 6, first the ball approaches and passes through the transparent conductive film 23 above the out hole, and then the transparent conductive film 2 thereunder.
2 is detected by the out-ball detection unit 38 by approaching / passing through 2. That is, when the pachinko ball approaches or passes through the transparent conductive film 23, the oscillation circuit 4 connected to the transparent conductive film 23
The reactance or capacitance of the first resonance circuit changes, the oscillation frequency changes, and frequency modulation is performed. The frequency modulation component is extracted by the FM detector 42, the signal is sent to the amplifier 43 and the waveform shaping circuit 34, and the pachinko ball detection signal is sent from the waveform shaping circuit 34 to the microcomputer 25.

Next, when the pachinko ball approaches / passes through the transparent conductive film 22, the oscillation circuit 41 is operated in the same manner as described above.
Changes the oscillation frequency of the FM detector 42, the amplifier 43,
A pachinko ball detection signal is sent to the microcomputer 25 via the waveform shaping circuit 34.

When the detection signal of the transparent conductive film 22 on the downstream side is input immediately after the detection signal of the transparent conductive film 23 on the upstream side, the microcomputer 25 adds one out ball. On the other hand, after the downstream transparent conductive film 22 detects a pachinko ball, when the upstream transparent conductive film 23 detects a pachinko ball, one hit ball is subtracted.

Therefore, even if the pachinko ball which tries to enter the out hole 6 rises again with excessive momentum and returns again to enter the out hole, the number of out balls is corrected and the accurate number of out balls is measured. Can be.

By the way, in a pachinko machine, a pachinko ball may be caught on a nail or the like, and ball retention may occur. In such a case, the microcomputer 25 operates the connection switching circuit 35 and the safe ball detection unit 30 one to three seconds after the driving of the ball is stopped to determine the presence or absence of a ball stuck on the board. .

That is, the microcomputer 25 operates the connection switching circuit 35 to connect the vertical transparent conductive lines 11 and the horizontal transparent conductive lines 11 of the safe ball detecting section 30 composed of the vertical transparent conductive lines 11 and the horizontal transparent conductive lines 12. Of the oscillation circuits 41 connected to the line 12, one oscillation circuit 41 whose oscillation is not inhibited by the inhibition circuit 44 is sequentially oscillated by the operation of the connection switching circuit 35.

At this time, the signal of the oscillation circuit 41 of the conductive line that has detected the ball is taken into the microcomputer 25 via the FM detector 42, the amplifier 43, the waveform shaping circuit 34, and the connection switching circuit 35, and By continuously detecting balls at the same location, ball retention on the board is detected. Microcomputer 25 that has detected ball jam
Generates an alarm, recognizes the position where the ball bomb occurred, from the intersection of the transparent conductive lines 11 and 12, and stores the position.

As described above, after the driving of the ball is stopped, after 1 to 3 seconds, the operation of detecting the ball retention is performed.
A shift hit of hitting one ball per second may be detected to issue an alarm or the like.

[Brief description of the drawings]

FIG. 1 is a perspective view of a pachinko machine provided with a pachinko ball detection device according to an embodiment of the present invention.

FIG. 2 is an explanatory front view showing a board, a safe ball detection unit, a hit ball detection unit, and an out ball detection unit;

FIG. 3 is an enlarged partial cross-sectional view showing the periphery of a vertical and horizontal transparent conductive line.

FIG. 4 is an enlarged partial cross-sectional view showing a connection portion of the line.

FIG. 5 is an enlarged front view of vertical and horizontal transparent conductive lines.

FIG. 6 is a block diagram of the pachinko ball detection device.

FIG. 7 is a block diagram of a detection IC circuit.

FIG. 8 is a connection diagram of a connection switching circuit.

FIG. 9 is a perspective view of the jig 9;

FIG. 10 is a front view of a state where the jigs 9 and 99 are placed on the board surface.

[Explanation of symbols]

 Reference Signs List 10-Glass substrate 11-Vertical transparent conductive line 12-Horizontal transparent conductive line 20, 21-Transparent conductive film 25-Microcomputer 31-Detection IC circuit 34-Waveform shaping circuit 35-Connection switching circuit 41-Oscillation circuit 42-FM detection vessel

Claims (2)

(57) [Claims] 1. A pachinko ball detection device for detecting pachinko balls on a board of a pachinko machine, wherein a large number of transparent conductive lines are arranged in a matrix on a glass substrate provided along the board of the pachinko machine. A ball detection unit comprising: a plurality of oscillation circuits for connecting each transparent conductive line to each resonance circuit; and changing an oscillation frequency when a pachinko ball approaches or passes through the transparent conductive line; A plurality of FM detectors connected to an output side of the circuit for detecting a frequency signal from the oscillation circuit; and a plurality of FM detectors connected to the output side of each of the FM detectors for waveform shaping of the signal from the FM detector A waveform shaping circuit; a microcomputer for inputting a pachinko ball detection signal output from the waveform shaping circuit; a microcomputer connected between the plurality of waveform shaping circuits and the microcomputer; A connection switching circuit for sequentially switching and connecting the output side of the shape shaping circuit to the microcomputer; and a pachinko ball detecting operation connected to each of the oscillation circuits.
The prohibition signal is output to the oscillation circuit of the transparent conductive line that does not perform
A pachinko ball detection device for a pachinko machine, comprising: a prohibition circuit for prohibiting oscillation by force . 2. The pachinko ball detecting device of a pachinko machine according to claim 1, wherein an oscillation circuit and an FM detector connected to each transparent conductive line are housed in each integrated circuit.