JP2789268B2 - Pachinko ball detection device and pachinko game machine - 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 apparatus and a pachinko game machine, and more particularly to a pachinko ball detecting apparatus for detecting a pachinko ball on a pachinko game machine.

[0002]

2. Description of the Related Art Accurately grasping, for each pachinko game machine, a player's playing, pachinko ball hitting, out-hole entering an out-hole, and ball entering a safe-hole, etc., is required for profit management of amusement arcades. Very important in customer management.

[0003] For this reason, Japanese Patent Laid-Open Publication No.
-279186.

[0004] That is, in the publication, a matrix sensor is configured by arranging a transmission coil row group and a reception coil column group on a glass substrate in a cross direction, and the matrix sensor is attached along the surface of the pachinko game machine and transmitted. There is disclosed a technique of sensing a pachinko ball by an impedance change at a superimposed portion between a unit and a reception unit.

A transmitting circuit sequentially transmits signals of a predetermined frequency to the transmitting coil row group, and a receiving circuit sequentially receives signals from the receiving coil array group in synchronization with the transmitting circuit.

[0006]

However, in the above-mentioned conventional technology, since noise is generated in the pachinko game machine, erroneous detection occurs in the matrix sensor due to the influence thereof, and the sensitivity characteristics of the matrix sensor become uneven. There was a problem that it became.

The present invention has been made in view of such a conventional problem, and a pachinko ball detecting apparatus and a pachinko ball detecting apparatus capable of preventing erroneous detection by a matrix sensor and having uniform sensitivity characteristics. It is an object of the present invention to provide a pachinko game machine equipped with a pachinko ball detection device.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned object, the gist of the present invention is: (1) A pachinko ball detecting device which is mounted along the surface of a pachinko game machine, comprising: a matrix sensor;
A receiving board, wherein the matrix sensor has a transmission line having a plurality of parallel folded straight portions arranged on one side of a glass substrate, and a plurality of parallel folded shapes whose electromagnetic characteristics change due to the approach of a pachinko ball. A reception line having a straight line portion is electromagnetically coupled in a direction intersecting with the straight line portion of the transmission line , is arranged on the opposite surface of the glass substrate, and is formed in a planar shape. It has a detection unit in the surrounding part with each receiving line,
The transmitting / receiving board has a transmitting circuit and a receiving circuit on a mounting board, the transmitting circuit has a configuration for sequentially transmitting a signal of a predetermined frequency to each transmitting line, and the receiving circuit has a receiving line And a plurality of CT transformers corresponding to the first and second transmission lines, each of which is synchronized with the transmission circuit and sequentially receives a signal from each reception line via each CT transformer. A pachinko ball detection device, wherein

[0009] The transmission connector has a transmission connector and a reception connector, the transmission connector connects the transmission terminal of each transmission line and the transmission circuit, and the reception connector connects the reception terminal of each reception line and the reception circuit. The pachinko ball detection device according to claim 1, wherein the row of the CT transformers is arranged on the mounting board closer to the reception connector than the transmission connector.

[0010] A pachinko game machine characterized in that the pachinko ball detecting device according to item 1 or 2 is attached to a mounting frame of a front glass along the board surface.

[0011]

In the pachinko ball detection device, when a signal of a predetermined frequency is sequentially transmitted from a transmission circuit to a plurality of folded transmission lines to generate a magnetic field, mutual induction is applied to a reception line electromagnetically coupled to the transmission line. An electromotive force is generated by the action. At this time, when the pachinko ball approaches the matrix sensor, an eddy current is generated on the surface of the pachinko ball in a direction to cancel the magnetic flux by the matrix sensor.

[0012] The impedance of the transmission line changes due to the influence of the eddy current, thereby changing the current. In response, the reception line changes the magnitude of the electromotive force. The receiving circuit attached to the transmitting / receiving board synchronizes with the transmitting circuit and receives a signal from each receiving line. Thus, the transmission line and the reception line having changed electromagnetic characteristics can be detected, and the position of the pachinko ball in the matrix sensor can be grasped as coordinates from the intersection position.

The receiving circuit sequentially receives signals from each receiving line via the CT transformer. Each CT transformer amplifies a received signal while insulating it from the matrix sensor. Therefore, the size is smaller than when the received signal is amplified by the OP amplifier, and furthermore, it is not affected by the noise generated in the pachinko game machine.

Further, the CT transformers are arranged in a line on the mounting board, so that the interference between the CT transformers is smaller than in the case where the CT transformers are skewed, and the sensitivity characteristics are made uniform.

When the row of CT transformers is arranged near the receiving connector, the sensitivity characteristics are made more uniform than when the rows are arranged near the transmitting connector.

In the pachinko game machine, the movement of the pachinko ball on the board can be tracked as a change in coordinates by the pachinko ball detecting device, and the progress of the game can be monitored, and the hit ball, out ball, and the prize winning device can be safely monitored. It is possible to know the condition of the ball, to check for an error due to hitting management and fraud, and to use the data as nail adjustment data.

[0017]

An embodiment of the present invention will be described below with reference to the drawings. 1 to 18 show an embodiment of the present invention. As shown in FIG. 2, the pachinko game machine 10
Pachinko balls are driven into the board 11 along the guide rails 12, and the inside of the guide rail 12 of the board 11 forms a game area.

In this game area, a large number of nails 13, 13...
a, 14a,..., a winning combination device 14b is provided at the center of the board between the upstream and the downstream, and an out hole 15 is provided at the lower end of the game area.

The winning combination device 14b is a device that changes a large number of pachinko balls and changes them into safe balls according to the winning. On the front of the pachinko game machine 10, a launching handle 33 for performing a pachinko ball launching operation, and a ball tray 3 for receiving a payout.
4 are provided.

As shown in FIG. 3, the pachinko game machine 10
A mounting frame 80 is provided on the front face of the camera so as to be freely opened and closed.
The attachment frame 80 has two front glasses attached thereto. The two front glasses are a surface glass body 16 covering the outside.
And an inner glass body 17 on the inner side and on the board surface side. When the mounting frame 80 is closed, the front glass body 16 and the inner glass body 17 cover the board surface 11 along the board surface 11, as shown in FIG.

As shown in FIG. 4, the inner glass body 17 is
It has a shape in which two lower corners of a substantially square shape are cut out. As shown in FIG. 7, the matrix sensor 20 is formed in a planar shape using the inner glass body 17 as a glass substrate, and is provided between the front glass body 16 and the board surface 11.

As shown in FIG.
In this case, the transmission line 22 having a plurality of straight portions is configured such that one transmission line 22 has a parallel folded shape (or a loop shape) that is U-turned at the folded portion 61, and these are parallel in one direction. Then, it is arranged and mounted on one side of the inner glass body 17.

Similarly, the plurality of receiving lines 26 have a plurality of linear portions such that one receiving line 26 is U-turned into a parallel folded shape (or a loop shape). The transmission wires 26 are formed, and these are arranged side by side and mounted on the opposite side of the inner glass body 17. The transmission terminal 23 and the reception terminal 27 are concentrated on the lower end of the inner glass body 17 when attached to the pachinko game machine.

Each of the receiving lines 26 is electromagnetically coupled to each of the transmitting lines 22, and is disposed in a direction perpendicular to the plane parallel to each of the transmitting lines 22 so that the electromagnetic characteristics change when the pachinko balls approach. Each transmission line 22 having the body 17 as a substrate
And the receiving lines 26 constitute a planar matrix sensor 20.

In the front view of FIG. 7, each of the square surrounding portions surrounded by the intersecting transmission lines 22 and reception lines 26 is
The detection units 20a, 20a,... For detecting pachinko balls by impedance change, which is an electromagnetic characteristic value.

FIG. 8A is an enlarged cross-sectional view of the inner glass body 17, and FIG. 8B is an enlarged view of a portion circled by a broken line in FIG. The inner glass body 17 is connected to the receiving line 26 (FIG. 7).
Internal protective glass plate 1 which is a protective sheet for
7a, a receiving-side glass base substrate 17b, a transmitting-side glass base substrate 17c, and an outer glass plate 17d, which is a protective sheet for the transmission line 22 (shown in FIG. 7), have a four-layer structure.

The inner glass body 17 typically has a vertical length a
Is a glass substrate having a square shape with a size of 367 mm ± 10 mm and a horizontal length b of 405 mm ± 10 mm,
It has a thickness of ~ 3.5 mm. Internal protective glass plate 17
a and the outer glass plate 17d are shorter in vertical length than the receiving glass base substrate 17b and the transmitting glass base substrate 17c, and the lower end 17p of the inner glass body 17 is exposed.

Between the inner protective glass plate 17a and the receiving-side glass base substrate 17b, a plurality of parallel folded receiving lines 26 are sandwiched.
A plurality of parallel transmission lines 22 are sandwiched between c and the outer glass plate 17d.

Therefore, the inner glass body 17 has the transmission line 22 attached to one surface of the transmission-side glass base substrate 17c by the transparent adhesive layer 18a, and the outer glass plate 17d is covered so as to cover the transmission line 22. The receiving line 26 is attached to the other surface of the receiving-side glass base substrate 17b with the transparent adhesive layer 18c, and the internal protective glass plate 17a is attached so as to cover the receiving line 26.
Are bonded by a transparent adhesive layer 18d, and the other surface of the transmission-side glass base substrate 17c and the other surface of the reception-side glass base substrate 17b are bonded by a transparent adhesive layer 18e.

A transparent conductive film for shielding is additionally provided on the entire surface of the outer glass plate 17d on the front side of the plurality of transmission lines 22. The transparent conductive film is formed of an indium oxide (ITO) film, a tin oxide film, or the like.

As shown in FIG. 7, a rectangular transmission-side glass base substrate 17c is bonded to a transmission-side folded substrate 19a formed of an elongated flexible printed circuit (FPC) along one side in the vertical direction. An L-shaped transmission-side routing board 19b also made of a flexible board is adhered along the opposite side and a part of the lower side.

As shown in FIG. 9, a plurality of, specifically, 32 arc-shaped folded portions 61 are formed in a row on the transmission-side folded substrate 19a by a conductor pattern made of copper foil, as shown in FIG. Then, one end 62a of a wire 62 is connected to one end 61a of each folded portion 61 by soldering using solder 63 or welding.

The transmission-side routing board 19b on the opposite side has a part protruding at the lower end, and the protruding part has a copper foil on the edge thereof along a part of the side as shown in FIG. A plurality of, specifically 64, transmission terminals 23 for external connection extending in the vertical direction are formed by the conductor pattern composed of.

The terminal side of each transmission line 22 has a transmission terminal 23 of each transmission line 22 and a routing section 64 to each transmission terminal 23. The routing portion 64 for each transmission terminal 23 is formed on the transmission side routing substrate 19b by a conductor pattern, and extends from each transmission terminal 23 along the transmission side routing substrate 19b.

The other end 62b of the wire 62 extending from one end 61a of each of the folded portions 61 is provided with a tension on the wire 62, and is soldered to the starting point 64a of the corresponding wrapping portion 64 on the terminal side using solder 63 or Connected by welding, and the routing portion 64
Is connected to the transmission terminal 23 via the. In addition, in order to remove a high-frequency disturbance, the routing portion 64 connects two straight portions with a circular arc portion 64R.

Similarly, the rectangular receiving-side glass base substrate 17b is bonded to the receiving-side folded substrate 29a along one side of the upper end in the horizontal direction, and is elongated along a part of the side of the lower end in the horizontal direction. The side routing board 29b is adhered. Similarly to the transmission-side folded board 19a, the reception-side folded board 29a is composed of a plurality of conductor patterns made of copper foil, specifically 32.
One end 61a of each folded portion is formed by forming an arc-shaped folded portion 61
One end 62a of the wire 62 is connected by soldering using solder 63 or welding.

As shown in FIG. 13, the receiving side routing board 29b on the opposite side has a lower end partly protruding, and the protruding portion has a transmitting side glass on the edge thereof along a part of the side. When the receiving-side glass base substrate 17b is bonded to the base substrate 17c, a plurality of, specifically, 64, longitudinally extending receptions for external connection are provided at non-opposing positions by a conductor pattern made of copper foil. A terminal 27 is formed.

The terminal side of each receiving line 26 has a receiving terminal 27 of each receiving line 26 and a routing section 64 to each receiving terminal 27. The routing part 64 to each receiving terminal 27 is formed on the receiving side routing board 29b by a conductor pattern, and extends from each receiving terminal 27 along the receiving side routing board 29b.

The other end 62b of the wire 62 extending from one end 61a of each of the folded portions 61 is provided with a tension on the wire 62, and is connected to the starting point 64a of the corresponding terminal side wrapping portion 64 by soldering using solder 63 or Connected by welding, and the routing portion 64
Is connected to the receiving terminal 27 via the.

The transmission line 22 and the reception line 26 are connected to the respective folded portions 6 formed on the respective folded substrates 19a and 29a.
1, each routing portion 64 formed on each routing board 19b, 29b, each wire 62, the transmission terminal 23 forming the end of the transmission line 22, and the reception terminal 27 forming the end of the reception line 26. It consists of.

The pattern of the matrix sensor 20 suitable for the ordinary pachinko game machine 10 is as follows.
The reception line 26 has 32 columns, and the number of the detection units 20a is 1 in total.
There are 024 patterns. In FIG. 7, patterns other than the outer patterns are omitted.

The thickness of the wires forming the transmission line 22 and the reception line 26 is preferably set to a value of 25 μm to 30 μm. In the case of the present embodiment, as shown in FIG.
And the overall widths c and d of the receiving terminal 27 are 12
As shown in FIG. 9, the width e of the vertically extending portion of the transmission-side folded substrate 19a is 10 mm or less, and the width f of the vertically extending portion of the transmission-side routing substrate 19b is 2 mm.
It is formed to 2 mm or less. Further, as shown in FIG. 11, each of the transmission terminal 23 and the reception terminal 27 has one width g.
Is 1.5 mm.

As shown in FIGS. 12 and 13, the matrix sensor 20 is provided with a connector mounting plate 66 at the lower end of the receiving glass base substrate 17b and the transmitting glass base substrate 17c. Connector mounting plate 66
The lower end 17p of the inner glass body 17 is
Are fixed integrally to the inner glass body 17 with both sides sandwiched between them.

The connector mounting plate 66 is made of stainless steel, extends downward along the width of the inner glass body 17, and has one surface formed on the inner protective glass plate 1 of the matrix sensor 20.
7a are arranged on the same plane. Connector mounting plate 66
Has a protruding fixing portion 66b on the opposite surface facing the front glass body 16 side. The fixing portion 66 b is a plate-like member bent in a crank shape, and has a lower end attached to the connector attaching plate 66. A fixing hole is formed at the upper end of the fixing portion 66b.

As shown in FIG. 7, the transmitting connector 67a and the receiving connector 67b are fixed to the connector mounting plate 66 at positions corresponding to the transmitting terminal 23 and the receiving terminal 27. The transmission connector 67a is connected to the transmission terminal 23 of each transmission line 22, and the reception connector 67b is connected to the reception terminal 27 of each reception line 23.

As shown in FIG. 5, the matrix sensor 20
The inside glass body 17 has a transmission / reception board 171 attached to the lower end 17p. The transmission / reception board 171 is arranged between the front glass body 16 and the matrix sensor 20. The transmission / reception board 171 includes a mounting board 171a formed of a printed board mounted on both sides. The mounting substrate 171a is a horizontally elongated substrate.
Since the mounting board 171a is configured by a double-sided mounting board, the transmitting / receiving board is made compact.

The transmission circuit 40,
The receiving circuit 50 and two joining connectors 37 respectively connected to the transmitting connector 67a and the receiving connector 67b are attached. The mounting board 171a has two through holes 171b separated in the length direction.

The transmission circuit 40 is a circuit for sequentially transmitting a signal of a predetermined frequency to the plurality of transmission lines 22 of the matrix sensor 20, and the reception circuit 50 sequentially transmits signals from the plurality of reception lines 26 in synchronization with the transmission circuit 40. It is a circuit for receiving. As a voltage waveform to the transmission line 22 by the transmission circuit 40, a continuous sine wave centered on 0 V at a frequency of 1 to 1.3 MHz is preferable.

Transmission connector 67a and reception connector 6
7b and each joining connector 37 are connected to each other, so that a transmitting / receiving board 171 is attached to the lower end 17p of the inner glass body 17, the transmitting terminal 23 is connected to the transmitting circuit 40, and the receiving terminal 27 is connected to the receiving circuit 50. It is supposed to connect.

As shown in FIG. 12 and FIG.
A matrix I / O case 35 is provided so as to cover the receiving board 171. The matrix I / O case 35
The mounting substrate 171a has a concave portion 35a at a position corresponding to each through hole 171b, and has a mounting hole penetrating each concave portion 35a. The matrix I / O case 35 is disposed with the transmission / reception board 171 interposed between the transmission / reception board 171 and the fixing portion 66 b of the connector mounting plate 66.

The screw 36 is attached to each mounting hole and each through hole 171b.
The matrix I / O case 35, the transmission / reception board 171 and the washer 39 are interposed between the fixing part 66b and the fixing part 66b. . The end 36a of each screw 36 on the side of the concave portion 35a is connected to the matrix I / O case 3
It is housed in the concave portion 35a so as not to protrude from the position 5.

FIGS. 14 to 18 show a signal processing system constituting a pachinko ball detecting device for detecting pachinko balls.
As shown in FIG. As shown in FIG. 14, the matrix sensor 20 includes a matrix I / O transmission / reception board 171
Is under the control of the CPU memory control board 172. The CPU memory control board 172
A data processing device is configured and can communicate with a communication line 179. CPU memory control board 1
Reference numeral 72 denotes an interface unit 176 for the CPU unit 30 to read monitoring points from the RAM card 173.
have.

The card 173 is a memory card of a monitoring memory that stores a monitoring point of a pachinko ball in a readable manner and is detachable from the interface unit 176. Card 1
Reference numeral 73 denotes safe holes 14a, 14a... Provided on the board surface of the pachinko game machine 10, a hit ball detection position, and an out hole 1.
The data at the position 5 and the algorithm for detecting the pachinko balls entering the safe holes 14a, 14a... And the out hole 15 are recorded as monitoring data. Note that a RAM card, a mask ROM, an EPROM, a one-time ROM, or the like can be used as the card.

An option 174 connected to the CPU memory control board 172 is a device for recording a trajectory of a pachinko ball moving around between the board surface 11 of the pachinko game machine 10 and the inner glass body 617. The recorded data is applied to a computer incorporating software for analyzing the trajectory of a pachinko ball, and is subjected to arithmetic processing, whereby necessary data can be obtained in a pachinko game hall (hall).

As shown in FIG. 15, the transmitting circuit 40 includes a transmitting connector 41, an amplifier 42 and a channel switching logic 43 connected to the transmitting connector 41, and an amplifier 42.
And an analog multiplexer 44 connected to the channel switching logic 43, and a plurality of analog multiplexers connected to the analog multiplexer 44 via the transmission connector 67a.
Specifically, 32 PNP + NPN totem pole drivers 45 connected to the transmission line 22 side of 32 circuits, respectively.
It is composed of

The channel switching logic 43 operates using two control lines for clock and reset by effectively using the counter IC 43a.

As shown in FIG. 16, the receiving circuit 50 includes a plurality of CT transformers (current transformers) 51 connected to a plurality of, specifically, 32 receiving lines 26 via a receiving connector 67b. , An analog multiplexer 52 connected to a CT transformer 51, and an analog multiplexer 52
53 and channel switching logic 5 connected to
4 and a receiving connector 55 connected to the amplifier 53 and the channel switching logic 54. Therefore, the receiving circuit 50 receives a signal from each receiving line 26 via each CT transformer 51.

[0058] As shown in FIG.
The transmission / reception boards 171 are arranged in a row along the upper edge of the mounting board 171a. The row of the CT transformers 51 is arranged such that the connection connector 37 of the transmission connector 67a is connected to the connection connector 3 of the reception connector 67b on the mounting board 171a.
It is located closer to seven.

The CT transformer 51 insulates each receiving line 26 from the analog multiplexer 52 and amplifies the signal from each receiving line 26 ten times. The analog multiplexer 52 sequentially receives signals from the respective CT transformers 51, and the amplifier 53 amplifies signals from the analog multiplexer 52. The channel switching logic 54 is a member similar to the channel switching logic 43 of the transmission circuit 40.

As shown in FIG. 17, the CPU memory control board 172 includes a CPU unit 3 on the transmitting side.
CPU connector 46 connected to CPU connector 4 and CPU connector 4
6, a sequence control circuit 47 for transmitting a transmission clock in response to a start signal from the CPU unit 30, a band-pass filter 48 for receiving the transmission clock and transmitting the transmission signal, and an amplifier for amplifying the transmission signal and transmitting it to the transmission connector. 49. On the receiving side, the CPU memory control board 172 includes an amplifier 71 for amplifying a signal received from the receiving connector 55, a band-pass filter 72 for receiving the amplified signal, and a full-wave rectifier for receiving a signal from the band-pass filter 72. An amplifier 73, two-stage low-pass filters 74a and 74b for receiving a signal from the full-wave rectifier / amplifier 73, and receiving a signal from the low-pass filter 74b and controlled by a sequence control circuit 47 to bidirectionally transmit digital data. A / D sent to RAM76
The converter 75 receives the digital data, receives the digital data under the control of the sequence control circuit 47, writes the received data, and transmits the received data to the CPU unit 30 via the CPU connector 46 in response to a read signal from the CPU connector 46.
And a two-way RAM 76 for sending to the

The bi-directional RAM 76 is a memory that stores the position of the pachinko ball as detection data of the detection unit 20a by each transmission line 22 and each reception line 26 based on a signal from the reception circuit 50, and has a built-in RAM. It has a counter, and all the processing of the matrix data of pachinko balls is performed by the counter. Further, the CPU memory control board 172 has a power supply unit 77.

The CPU unit 30 reads the monitoring area data of the card 173, reads the detection data of the bidirectional RAM 76, and monitors the pachinko balls by associating the detection data with the monitoring area data of the pachinko balls. .

Next, the operation will be described. CPU unit 30
Address and control signals from the CPU
The signal is transmitted to the matrix sensor 20 via the connector 46.

In the matrix sensor 20, on the transmitting side, the sequence control circuit 47 receives a start signal and outputs a 16 MHz signal.
The transmission clock is output by dividing the original clock of z as necessary. The transmission clock from the sequence control circuit 47 is subjected to waveform shaping from a digital signal to an analog signal by a band-pass filter 48, amplified by an amplifier 49, and sent to a transmission connector 41.

Further, the transmission signal is amplified by the amplifier 42 in the transmission circuit 40. Analog multiplexer 44
Is a channel that is switched by the channel switching logic 43, and sequentially operates the totem pole driver 45, whereby the totem pole driver 45 sequentially outputs the signal amplified by the amplifier 42 to the transmission line 22 at a predetermined cycle. (See step 91 in FIG. 18).

In the matrix sensor 20, the transmitting circuit 40
When a signal of a predetermined frequency is sequentially transmitted to a plurality of folded transmission lines 22 to generate a magnetic field, an electromotive force is generated in a reception line 26 electromagnetically coupled to the transmission line 22 by a mutual induction action. . At this time, when the pachinko ball, which is a metal, approaches the detection unit 20a of the matrix sensor 20,
An eddy current is generated on the surface of the pachinko ball in a direction to cancel the magnetic flux generated by the matrix sensor 20. The impedance of the transmission line 22 changes due to the influence of the eddy current, thereby changing the current. In response, the reception line 26 changes the magnitude of the electromotive force.

On the receiving side, the receiving circuit 50 synchronizes with the transmitting circuit 40 by the sequence control circuit 47 and sequentially receives signals from each receiving line 26 via each CT transformer 51. As shown in FIG. 16, the current as the electromagnetic characteristic value appearing on the plurality of reception lines 26 is supplied by the CT
It is amplified twice. Since amplification is performed by the CT transformer 51, it is not necessary to increase the amplification of the amplifier on the receiving side.

Each CT transformer 51 is connected to each reception line 26 of the matrix sensor 20 constituting the metal sensor and the reception circuit 5.
Amplifying the received signal by isolating the analog signal from the zero analog multiplexer 52. Each CT transformer 51 prevents noise from entering the receiving circuit 50 from the pachinko game machine 10,
Avoid the effects of noise generated by pachinko game machines.

Each CT transformer 51 is mounted on the mounting substrate 1.
The CT transformers 51 are arranged in a line on the line 71a, so that the interference between the CT transformers 51 is smaller than in the case where the CT transformers 51 are arranged in a biased manner.
The sensitivity characteristics can be made uniform. Furthermore, CT transformer 5
Since the first row is arranged closer to the receiving connector 67b, the sensitivity characteristics can be made more uniform than in the case where it is arranged closer to the transmitting connector 67a.

The CT transformer 51 can prevent the occurrence of noise and DC drift due to the OP amplifier itself, as compared with the case where an OP amplifier is used, and can improve the detection accuracy of the received signal. An OP amplifier is generally large in comparison with a CT transformer, and if an OP amplifier attempts to obtain the same level of accuracy as a CT transformer, it will be expensive.

On the other hand, the CT transformer 51 is smaller and simpler in construction than the OP amplifier, and
By using the CT transformer 51 in the matrix
The I / O transmission / reception board 171 and the pachinko ball detection device can be reduced in size.

The matrix I / O transmission / reception board 1
71 is a CT transformer 51 and an analog multiplexer 5
By adopting a simple configuration mainly including 2 and the amplification period 53, the size is reduced and the number of lead lines is reduced.

The analog multiplexer 52 switches signals from the respective receiving lines 26 through the CT transformer 51 by the channel switching logic 54 and sequentially outputs the signals at a predetermined cycle. The signal from the analog multiplexer 52 is amplified 100 times by the amplifier 53 (FIG. 18).
See step 92).

The received signal is transmitted to the receiving connector 55 and the amplifier 7
1. Amplification and detection are performed via the band-pass filter 72. The received signal from the bandpass filter 72 is an analog signal, and this analog signal is
Waveform shaping is performed by the full-wave rectifier / amplifier 73. The signal from the full-wave rectifier / amplifier 73 is supplied to a low-pass filter 7.
At 4a and 74b, averaging is performed by integration processing.

Next, the received signal is supplied to the A / D converter 75
Sent to The A / D converter 75 converts a signal from the matrix sensor 20 into a digital signal in a predetermined bit unit such as 12 bits, and controls the sequence control circuit 63 to record the detection data in the bidirectional RAM 76 (step in FIG. 18). 93). This processing speed is as high as 25,000 times per second. Bidirectional RAM 7
6 is C by a write signal from the sequence control circuit 63.
After recording the detection data irrespective of the operation of the PU unit 30, the address is increased by inputting one clock.
Increase by 1 (see step 94 in FIG. 18). Two-way RA
The capacity of M76 is, for example, 2048 bytes.

Next, the analog multiplexer 52 of the receiving circuit 50 switches the signal from each receiving line 26 (FIG. 18).
(Refer to step 95), 32 according to the 32 reception lines 26
The above steps are repeated once (see step 96 in FIG. 18). After 32 repetitions, the analog multiplexer 44 of the transmission circuit 40 switches the transmission line 22 (see step 97 in FIG. 18), and repeats the signal processing again.

Thus, the reception line 26 in which the reception signal has changed
., Transmitted at that time are detected by scanning, and the position of the pachinko ball in the matrix sensor 20 can be grasped as coordinates from the intersection. The number of the detection units 20a is 32 for the transmission line 22.
Since the total number of rows and reception lines 26 is 1024 in 32 columns,
Even if the pachinko ball passes through any of the safe holes 14a and the out holes 15 of the board 11, it can be detected.

The bidirectional RAM 76 determines the position of the pachinko ball in the matrix sensor 20 from the intersection of the reception line 26 where the reception signal has changed and the transmission line 22 transmitted at that time, based on the signal from the reception circuit 50. It is stored as detection data of the detection unit 20a by each transmission line 22 and each reception line 26.

The CPU unit 30 reads the detection data relating to the position of the pachinko ball recorded in the bidirectional RAM 76 according to the read start signal as necessary, performs an arithmetic processing, and converts the detection data into the pachinko ball stored in the card 173. The pachinko balls are monitored in correspondence with the monitoring data.

CPU unit 30 repeats this process. The matrix sensor 20 can follow the movement of the pachinko ball on the board 11 of the pachinko game machine 10 as a change in coordinates. Pachinko game machine 10
Then, the progress of the game is monitored by the matrix sensor 20, and the status of the hit ball, the out ball, and the safe ball of the winning prize device 14b is known. It can be used as data.

In the matrix sensor 20, the transmitting connector 67a and the receiving connector 67b are connected to the mating connector 3.
7 can be easily detached from the matrix I / O transmission / reception board 171 even if it breaks down, and can be easily replaced or attached. The matrix sensor 20 can be easily attached to a pachinko game machine that has not been used.

The inner glass body 17 is formed of a four-layer structure of an inner protective glass plate 17a, a receiving glass base substrate 17b, a transmitting glass base substrate 17c, and an outer glass plate 17d. 17b
In addition, the transmission-side glass base substrate 17c may be configured as a single sheet to form a three-layer structure.

[0083]

According to the pachinko ball detecting device and the pachinko game machine according to the present invention, the CT transformers are arranged in a line on the mounting board, so that the CT transformers are compared with the case where the CT transformers are biased. Interference between them is small, and the sensitivity characteristics can be made uniform. When the row of CT transformers is arranged near the receiving connector, the sensitivity characteristics can be made more uniform than when the rows are arranged near the transmitting connector.

In the pachinko game machine, the movement of the pachinko ball on the board can be tracked as a change in coordinates by the pachinko ball detection device.

[Brief description of the drawings]

FIG. 1 is a front view showing an arrangement of a CT transformer on a matrix I / O transmission / reception board of a pachinko ball detection device according to one embodiment of the present invention.

FIG. 2 is a perspective view conceptually exploded of a pachinko game machine and a matrix sensor according to an embodiment of the present invention.

FIG. 3 is a front view of the pachinko game machine according to the embodiment of the present invention in a state where an attachment frame is opened.

FIG. 4 is a schematic front view of a pachinko ball detection device according to one embodiment of the present invention.

FIG. 5 is a schematic side view of a pachinko ball detection device according to one embodiment of the present invention.

FIG. 6 is a partial vertical sectional view of the pachinko game machine of one embodiment of the present invention.

FIG. 7 is a front view of the pachinko ball detection device according to one embodiment of the present invention.

FIG. 8 is an enlarged sectional view of the pachinko ball detection device according to one embodiment of the present invention.

FIG. 9 is a detailed front view of a transmission line of the pachinko ball detection device according to one embodiment of the present invention.

FIG. 10 is an enlarged sectional view showing a connection state of wires of a transmission line of the pachinko ball detection device according to one embodiment of the present invention.

FIG. 11 is an enlarged front view of a transmission terminal of the pachinko ball detection device according to one embodiment of the present invention.

12 is a cross-sectional view of the pachinko ball detection device shown in FIG. 4 according to one embodiment of the present invention, taken along line XII-XII.

13 is a cross-sectional view of the pachinko ball detection device shown in FIG. 4 according to one embodiment of the present invention, taken along line XIII-XIII.

FIG. 14 is a schematic configuration diagram of a pachinko ball detection device according to one embodiment of the present invention.

FIG. 15 is a block diagram of a transmission circuit of a matrix I / O transmission / reception board of the pachinko ball detection device according to one embodiment of the present invention.

FIG. 16 is a block diagram of a reception circuit of a matrix I / O transmission / reception board of the pachinko ball detection device according to one embodiment of the present invention.

FIG. 17 is a view showing a C of the pachinko ball detecting device according to one embodiment of the present invention
It is a block diagram of a receiving and transmitting circuit of a PU memory control board.

FIG. 18 is a flowchart of scanning of the pachinko ball detection device according to one embodiment of the present invention.

[Explanation of symbols]

B: Pachinko ball, 10: Pachinko game machine, 11: Board surface, 14a: Safe hole, 15: Out hole, 17: Inner glass body, 17a: Internal protective glass plate, 17b: Receiving glass base substrate, 17c: Transmitting side Glass base substrate, 1
7d: outside glass plate, 17e: transparent conductive film, 19a, 2
9a: folded substrate, 19b, 29b: routing substrate, 20: matrix sensor, 20a: detection unit, 22: transmission line, 2
3 ... transmission terminal, 26 ... reception line, 27 ... reception terminal, 30 ...
CPU unit, 35 ... Matrix I / O case, 40 ...
Transmission circuit, 50 ... Reception circuit, 51 ... CT transformer, 61
... Folding portion, 62... Wire, 64... Routing portion, 66... Connector mounting plate, 67 a... .

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A63F 7/02

Claims (3)

(57) [Claims] 1. A pachinko ball detection device mounted along a board surface of a pachinko game machine, comprising: a matrix sensor; and a transmission / reception board, wherein the matrix sensor has a plurality of parallel folded back shapes.
A transmission line having a straight portion is disposed on one surface of a glass substrate, and a reception line having a plurality of parallel folded straight portions whose electromagnetic characteristics change due to the approach of a pachinko ball is formed by the transmission line .
It is electromagnetically coupled in a direction crossing the straight line portion , is arranged on the opposite surface of the glass substrate, is formed in a planar shape, and has a detection unit in an enclosing portion of each transmission line and each reception line, and The board has a transmission circuit and a reception circuit on a mounting board, the transmission circuit has a configuration for sequentially transmitting a signal of a predetermined frequency to each transmission line, and the reception circuit has a plurality of transmission lines corresponding to each reception line. Having a configuration in which signals are sequentially received from each receiving line via each CT transformer in synchronization with the transmission circuit, and each CT transformer is arranged in a row on the mounting board. A pachinko ball detector. A transmission connector and a reception connector;
The transmission connector connects a transmission terminal of each transmission line and the transmission circuit, the reception connector connects a reception terminal of each reception line and the reception circuit, and the row of CT transformers is on the mounting board. The pachinko ball detection device according to claim 1, wherein the pachinko ball detection device is disposed closer to the reception connector than the transmission connector. 3. A pachinko game machine wherein the pachinko ball detecting device according to claim 1 or 2 is mounted on a mounting frame of a front glass along a board surface.