JPH04189383A - Pinball game machine - Google Patents

Abstract

PURPOSE:To decide the approach of a pinball by constituting the pinball game machine so that a detection matrix which is provided with plural transmitting lines and receiving lines, and constituted by placing them in the orthogonal direction, detects the transmitting line and the receiving line whose electromagnetic characteristic is varied, and grasps a position of a metal as a coordinate. CONSTITUTION:In the pinball game machine, a detection matrix 20 is constituted by placing plural parallel turn-back-like transmitting lines 22 like the same plane, and placing plural parallel turn-back-like receiving lines 26 which are coupled electromagnetically with each transmitting line 22, and whose electromagnetic characteristic is varied by approach of a metal, in the orthogonal direction in a face parallel position to the transmitting lines 22, and a metallic sensor for detecting the transmitted transmitting line 22 in plural transmitting lines 22 and the receiving line 26 whose electromagnetic characteristic is varied due to approach of a pinball B in plural receiving lines 26, and sensing a position of the pinball B by the detection matrix 20 from an intersecting position of the transmitting line 22 and the receiving line 26 is attached to front glass, and a DC resistance value of the transmitting line 22 and the receiving line 26 has a value of 10OMEGA-2000OMEGA. In such a way, a safe-bass and an out-ball can be detected on the board surface of the pinball game machine.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a pachinko game machine, and particularly to one having a metal sensing configuration.

``Prior Art'' There is a pachinko game machine that detects the passage of pachinko balls along their path. In such pachinko game machines,
For each pachinko game machine, it is most important to accurately understand the balls played by players, the so-called incoming balls, and the balls that go out as prizes for balls that enter the safe holes for each pachinko game machine, in terms of profit management and customer management. This is great information.

Therefore, as a conventional technique for detecting the passage of pachinko balls through the path of a pachinko game machine, there is a technique disclosed in Japanese Patent Publication No. Sho 64-3506.

That is, in the same publication, an upper sheet and a lower sheet having contact pairs are provided, and when a pachinko ball is placed on the upper sheet, the contact pair becomes conductive due to the weight of the pachinko ball, thereby detecting a pachinko ball. something is disclosed.゛``Problem to be solved by the invention'' However, with the above conventional technology, pachinko balls can only be detected in the flow path of the pachinko game machine. There were problems in that it was not possible to detect how the pachinko balls entered the machine, it was impossible to know how the game was progressing, and there was a lack of functionality for accurate management of the pachinko game machine.

Additionally, the detection of the passage of pachinko balls is delicate due to the size and weight of the pachinko balls, and the resolution may be poor, or the positional relationship may be incorrect because multiple positions react to one pachinko ball. The problem was that it was difficult to grasp and the detection accuracy was inconsistent.

The present invention has been made by focusing on such conventional problems, and it is possible to detect safe balls and out balls on the board of a pachinko game machine, and to detect pachinko balls with constant detection accuracy. The purpose of the present invention is to provide a pachinko game machine equipped with the following functions.

"Means for Solving the Problems" The gist of the present invention to achieve the above object is as follows: ■ A plurality of parallel folded transmission lines are arranged on the same plane, and each transmission line is electromagnetically connected to the other. A detection matrix is constructed by arranging a plurality of parallel folded reception lines whose electromagnetic characteristics change due to the proximity of metals in a direction orthogonal to the plane parallel to the transmission line, and one of the plurality of transmission lines The transmitted transmission line and the reception line whose electromagnetic characteristics have changed due to the approach of the pachinko balls among the plurality of reception lines are detected, and the detection matrix detects the pachinko balls from the intersection position of the transmission line and the reception line. 1. A pachinko game machine having a metal sensor for detecting a position attached to a front glass, wherein the transmission line and the reception line have a DC resistance value of 100 or more and 200Ω or less.

2 The DC resistance value of the transmission line and the reception line is 25
2. The pachinko game machine according to item 1, wherein the pachinko game machine is Ω.

3 A plurality of parallel folded transmission lines are arranged on the same plane, and are electromagnetically coupled to each transmission line, and a plurality of parallel folded reception lines whose electromagnetic characteristics change due to the proximity of metal are connected to the transmission line. A detection matrix is configured by arranging the detection matrix in a direction perpendicular to the plane parallel to the line, and one of the plurality of transmission lines is a transmission line that has transmitted, and one of the plurality of reception lines is a reception line whose electromagnetic characteristics have changed due to the approach of a pachinko ball. A pachinko game machine in which a metal sensor is attached to the front glass to detect the position of a pachinko ball in the detection matrix from the intersection position of the transmission line and the reception line, the transmission line and the reception line A pachinko game machine characterized in that the lines are folded back in parallel, and the width of the folded lines is 4 mm or more and 16 mm or less.

4 The folding width of the transmission line and the reception line is 8.
3. The pachinko game machine according to item 3, wherein the pachinko game machine is m.m.

5 The diameter of the transmission line and the reception line is 20JLm.
Paragraphs 1 and 2 characterized in that they are greater than or equal to 50 IL, and less than or equal to m.
The pachinko game machine according to item 3 or 4.

6 A plurality of parallel folded transmission lines are arranged on the same plane, and are electromagnetically coupled to each transmission line, and a plurality of parallel folded reception lines whose electromagnetic characteristics change due to the proximity of metal are connected to the transmission line. A detection matrix is configured by arranging the detection matrix in a direction perpendicular to the plane parallel to the line, and one of the plurality of transmission lines is a transmission line that has transmitted, and one of the plurality of reception lines is a reception line whose electromagnetic characteristics have changed due to the approach of a pachinko ball. A pachinko game machine that is attached to a front glass of a metal sensor that detects the position of a pachinko ball in the detection matrix from the intersection position of the transmission line and the reception line, the current being sent to the transmission line. is a pachinko game machine characterized by a continuous sine wave centered on 0V.

7 The transmission frequency body of the transmission line is 0.5~2°OM
7. The pachinko game machine according to item 6, wherein the pachinko game machine is in the Hz range.

8 A plurality of parallel folded transmission lines are arranged on the same plane, and are electromagnetically coupled to each transmission line, and a plurality of parallel folded reception lines whose electromagnetic characteristics change due to the proximity of metal are connected to the transmission line. A detection matrix is configured by arranging the detection matrix in a direction perpendicular to the plane parallel to the line, and one of the plurality of transmission lines is a transmission line that has transmitted, and one of the plurality of reception lines is a reception line whose electromagnetic characteristics have changed due to the approach of a pachinko ball. A pachinko game machine in which a metal sensor is attached to the front glass to detect the position of a pachinko ball in the detection matrix from the intersection position of the transmission line and the reception line, the detection matrix having 32 row of transmission lines and 32 rows of receivers,
The present invention resides in a pachinko game machine characterized by having 1024 detection units arranged in a direction orthogonal to the signal line.

``Effect'' When a current is passed through the folded transmission line and a magnetic field is generated,
An electromotive force is generated in the receiving line electromagnetically coupled to the transmitting line due to mutual induction. At this time, when a pachinko ball approaches a metal sensor, an eddy current is generated on the surface of the pachinko ball in a direction that cancels out the magnetic flux caused by the metal sensor. The impedance of the transmission line changes due to the influence of the eddy current, causing the current to change. Correspondingly, the receiving line changes the magnitude of the electromotive force. By detecting this change, it is possible to determine whether the pachinko balls are approaching.

A detection matrix that has multiple transmission lines and reception lines arranged in orthogonal directions detects the transmission line and reception line whose electromagnetic characteristics have changed, and determines the position of the metal in the detection matrix from the orthogonal position. can be understood as coordinates.

Metal sensors can track the movement of pachinko balls as changes in coordinates on the board of a pachinko game machine, and monitor the progress of the game by placing metal sensors at key points on the board, such as the safe hole and out hole. Ball in.

The information can be used to know the status of the balls being put out, to manage the ball delivery, to check for irregularities due to fraud, and to use as data for nail adjustments, etc.

DC resistance value of transmitting line and receiving line is 100 or more 200Ω
Below, if the resistance is preferably 25Ω, or if the folding width of the transmitting line and the receiving line is 4 mm or more and 16 mm or less, preferably 8 mm, it is suitable for pachinko balls and pachinko game machines, and for - pachinko balls. Has good reaction sensitivity.

In addition, the diameter of the transmitting line and receiving line is 20 μm or more and 50 μm or more.
When the transmission line and the reception line are below Bm, pachinko balls can be detected well without the transmission line and the reception line becoming an eyesore for the game.

If the current sent to the transmission line is a continuous sine wave centered at 0, no noise will be generated as in the case of a square wave, and the influence on other equipment will be minimal.

When the transmission frequency band of the transmission line is in the range of 1 to 1.3 MHz, the pachinko game machine itself is less affected by noise generated and the response sensitivity is high.

When the detection matrix has a detection unit of 1024 m in 32 x 32 rows, it is suitable for the size of pachinko balls,
To successfully detect the passage of a ball through a safe hole and an out hole at any position on a board of a pachinko game machine.

"Example" Hereinafter, various embodiments of the present invention will be described based on the drawings.

1 to 7 show a first embodiment of the present invention. In the first embodiment, a metal detection device is constructed using a metal sensor, and this is applied to a pachinko game machine 10.

As shown in FIGS. 2 and 3, a pachinko game machine 1
A detection matrix 20 constituting a metal sensor is attached along the board surface 11 of 0.

On the board surface 11 of the pachinko game machine 10, the inside of the guide rail 12 forms a game area, and a large number of nails 13, 13, etc. that play pachinko balls are driven into this game area, and safe holes 14a, 14a, etc. are driven into the game area. - has been opened, and 15 out holes have been opened at the lower end of the game area.

The front glass lid covering the board surface 11 is the surface glass body 16
It has a double structure with an inner glass body 17 and an inner glass body 17.

The front face of the pachinko game machine 10 is provided with a launch handle 18 for operating the launch operation of pachinko balls, and a ball surface 19 for receiving and receiving the balls.

The detection matrix 20 is provided on the inner glass body 17, which is the inner side of the two glass bodies that cover the board surface 11 and is on the board surface side.

The inner glass body 17 includes an inner protective glass plate 17a, which is a protective sheet for the receiving line 26, and a glass base substrate 17b.
, an outer glass plate 1 which is a protective sheet for the transmission line 22
It has a triple laminated structure of 7c, with 1 internal protective glass plate.
A plurality of parallel folded (or looped) reception lines 26 are sandwiched between the glass base substrate 17b and the glass base substrate 17b, and a plurality of parallel folded (or looped) reception lines 26 are sandwiched between the glass base substrate 17b and the outer glass plate 17c. A transmission line 22 (or loop-shaped) is sandwiched.

A transparent conductive film 28 for shielding is attached to the entire surface of the outer glass plate 17c, which is the front side of the plurality of transmission lines 22. The transparent conductive film 28 is made of indium oxide (1,T,
It is formed of a film of O, ) or a film of tin oxide.

As shown in FIG. 5, the transmission line 22 is formed by attaching a metal 2 such as aluminum to the surface of one side of the glass base substrate 17b.
2a is vapor-deposited to form a folded transmission line pattern, and on the vapor-deposited part along the pattern,
It is formed by plating a metal 22b such as copper to form a metal plating pattern. Similarly, the reception line 26 is formed by vapor-depositing aluminum on the other surface of the glass base substrate 17b to form a folded reception line pattern so as to cross the transmission line pattern. It is formed by plating.

By changing the thickness of this copper plating, it is possible to control the response sensitivity of the transmission line or reception line. For example, if the thickness of the copper plating is increased, the direct current resistance of the transmission line or reception line will be lowered, and the reaction sensitivity to pachinko balls will be increased.

The inner glass body 17 has an inner protective glass plate 17a on the reception line 26 and an outer glass plate 17c on the transmission line 22.
Constructed by joining with transparent adhesive.

As shown in FIG. 1, the plurality of transmission lines 22 are configured such that one transmission line 22 is turned in a U-turn and folded back in parallel, and these lines are arranged in parallel in one direction on the same plane. .

Further, the plurality of reception lines 22 are similarly connected to one reception line 26.
are formed in a U-turn and folded in parallel, and these are arranged in parallel in one direction on the same plane.

Each receiving line 26 is electromagnetically coupled to each transmitting line 22 and placed in a plane parallel position to each transmitting line 22 (in other words, the folded transmitting line 22 Receipt of face and folded letter containing @26
parallel to the plane containing),
Each transmission line 22 and each reception line 26 constitute a detection matrix 20.

In the front view of FIG. 1, each transmission line 22 and each reception line 2 intersect.
Each square portion surrounded by 6 constitutes a detection unit 20a, 20a, .

External connection terminals 23 and 27 are provided at the ends of the plurality of transmission lines 22 and the plurality of reception lines 26, respectively, and as shown in FIG. 4, some of the detection units 20a, 20a... Safe hole 14a.

14a... is supported.

Note that the transmission line 22. The shape of the receiving line 26 is delicate depending on the size of the pachinko ball, and if the detection units 20a, 20a, etc. are too large, the resolution will be poor.
If it is too small, the resolution will increase and accurate shape identification will be possible, but it will be necessary to increase the scanning speed.

Therefore, the transmission line 22. The DC resistance value of the receiving line 26 is preferably set to 1, which provides the best response sensitivity to pachinko balls.
It is set to a value of 00 or more and 200Ω or less, and optimally about 25Ω.

Also, the transmission line 22. The folding width a of the reception line 26 is preferably 4[l] as a width that provides good response sensitivity for detecting pachinko balls.
Optimally, it is set to a value of ll1ll1 to 16 to n+. Also, 22 questions for each sending line and 2 questions for each receiving line.
A width of about 0.5 to 2 mm has shown good results.

Detection matrix 2 suitable for normal pachinko game machine 10
0 pattern has 32 lines of transmitting lines 22 and 3 lines of receiving lines 26.
The number of detection units 20a in two rows is a total of 1024 patterns.

Also, the transmission line 22. The diameter of the conductor constituting the reception line 26 also has a large effect; if it is thin, the impedance will be too high, and if it is thick, the inner diameter of the pattern will become small, resulting in poor sensitivity. Furthermore, the detection matrix 20 includes an inner glass body 1 that covers the board surface 11.
7, so it needs to be as thin as possible without obstructing the game.

Therefore, the transmission line 22. The diameter of the conductor constituting the reception line 26 is preferably 20JLm or more and 50JLm or more. It is set to a value of μm or less.

The signal processing system constituting the metal detection device for detecting pachinko balls is as shown in FIGS. 6 and 7.

The system is under the control of a CPU unit 30 which is the main control device, and around the CPU unit 30 there is a logic controller 31 that relays control signals etc. from the CPU unit 30, and an output system from the detection matrix 20 to the CPU unit 30. Impedance matching driver 32. DC offset converter 33. Hold part 34. A
A /D converter 35, a timing generator 36, and a power supply unit 37 are provided.

The logic controller 31 and the output system are connected to an external connector 38.

On the pachinko game machine 10 side, an output system 40 that supplies power to the plurality of transmission lines 22 of the detection matrix 20 and an input system 50 from the plurality of reception lines 26 are provided.

The output system 40 is provided on the side of the plurality of transmission lines 22, and the output system 40 includes a transmission driver 41 that sequentially outputs signals to the transmission lines 22, 22, . However, a decoder 42 is provided which controls the transmission driver 41 to operate sequentially in accordance with a control signal originating from the CPU unit 30. As the voltage waveform 81 to the transmission line 22, as shown in FIG.
A continuous sine wave centered at 0V in Hz is preferred.

Further, a logic sequencer 43, a timing generator 44, a transmission line row counter 45, and the like are provided in the output system 40.

The logic sequencer 43 operates according to a control signal from the CPU unit 30, and synchronizes a decoder 42 on the transmitting side with a multiplexer 52 on the receiving side, which will be described later. It controls the timing of

The timing generator 44 determines the scanning cycle, and is used to determine the scanning cycle of the pachinko game machine 10.
In order to cope with the upward movement of pachinko balls, a minimum frequency of 10 KHz is required, and in the embodiment, it is set to 100 KHz. The transmission line row counter 45 counts the transmission lines 22, 22, . . . according to the scanning cycle. The input system 50 is provided on the side of the plurality of reception lines 26, is connected to the plurality of reception lines 26, and is connected to each reception line 26, 26, .
A converter 51 that receives a current, which is an electromagnetic characteristic value, and converts it into a manageable voltage signal;
A multiplexer 52 is connected to the receiving lines 26, 26, and sequentially receives and outputs signals from the receiving lines 26, 26, .

The multiplexer 52 is connected to a receiving line row counter 53 provided after the logic sequencer 43 of the output system 40, and the output system 40 and input system 50 are connected to a sending line row counter 45 connected to the logic sequencer 43 and a receiving line row counter 53. It is designed to be synchronized with the column counter 53, and for example, one reception line 26 of the plurality of reception lines 26.26 is synchronized with the plurality of reception lines 26.26 for one scanning of the plurality of transmission lines 22.22. There are some things that can be detected.

Contrary to the above synchronization mode, for one transmission of one transmission line 22 among the plurality of transmission lines 22, the reception line 26.26
There are some that are detected by scanning - times.

The output of the multiplexer 52 of the input system 50 is connected to the external connection connector 38 of the CPU unit 30 via an impedance converter 54.

Next, the effect will be explained.

When the address signal and control signal are output from the CPU unit 30 to the logic controller 31, these signals are transmitted to the pachinko game machine IO via the external connection connector 38.

In the pachinko game machine 10, the logic sequencer 43 of the output system 40 issues a sequence signal based on the input signal, and the signal is transmitted to the decoder 42 and timing generator 44. It is output to the transmission line row counter 45 and the reception line column counter 53.

The timing generator 44 determines the scanning period of the plurality of transmission lines 22 of the detection matrix 20, and the transmission line row counter 45 counts and synchronizes the transmission lines 22, 22, . . . corresponding to the scanning period. We aim to

The decoder 42 controls the transmission driver 41 to operate sequentially, so that the transmission driver 41 transmits data at a predetermined period.
Signals are sequentially output to lines 22, 22, . . .

On the side of the plurality of reception lines 26, the reception line 2 of the plurality of reception lines 26
6. The converter 51 which receives the electric current which is the electromagnetic characteristic value appearing in 26... converts this electromagnetic characteristic value into a manageable voltage signal.

The multiplexer 52 that receives the converted signals from each reception line 26, 26, . . . sequentially outputs the signals from each reception line 26, 26, .

The decoder 42 on the transmitting side and the multiplexer 52 on the receiving side are a logic sequencer 43 that operates based on control signals.
A transmission line row counter 45 which is operated by a control signal of . The operation is synchronous with the count of the receiving line array counter 53.

The logic sequencer 43 causes the converter 518 and multiplexer 52 on the receiving side to detect information on one receiving line 26 among the plural receiving lines 26 for each scanning of the plurality of transmission lines 22, or vice versa. transmission line 2
Multiple receptions per transmission on one of the transmission lines 22! 126 or one time for detection.

When a pachinko ball hits the detection unit 20a, the impedance, which is the electromagnetic property of the detection unit 20a, changes, and this change occurs in the receiving line 26, 26, etc. at that position, and the transmitting line 22, 22, etc. at that position. The corresponding receiving line 26, [6
...can be detected by scanning.

That is, when a constant sine wave signal is transmitted to each of the plurality of transmission lines 22 of the detection matrix 20, the reception line 26
．． 26...26 and the transmission lines 22, 22...22 are inductively coupled, and a predetermined impedance value is generated in the plurality of transmission lines 22. Note that the voltage waveform 81 to the transmission line 22 is O
Since it is a continuous sine wave centered on v, it does not generate noise unlike a rectangular wave, and can prevent the influence on other devices such as the CPU unit 30.

When a pachinko ball approaches and passes the detection unit 20a, the electromagnetic characteristics of the plurality of transmission lines 22, specifically, the impedance value, change, and the electromagnetic characteristics of the corresponding receiving line 26, specifically, the receiving current also changes. , the change is applied from the converter 51 to the multiplexer 52 as described above. The number of detection units 20a is 32 lines for the transmission line 22 and 32 lines for the reception line 26.
Since there are a total of 1024 balls in the row, it is possible to suit the thickness and size of the pachinko balls and detect them well no matter where they pass through the safe hole 14a and the out hole 15 on the board 11 of the pachinko game @10. It's coming.

The output of multiplexer 52 is connected to impedance converter 54
Perform impedance conversion with the external connection connector 38.
The signal then enters the impedance matching driver 32 on the CPU unit 30 side, where impedance matching is performed. The DC offset converter 33 following the impedance matching driver 32 receives only the reaction wave out of the output from the detection matrix 20 and outputs it to the halt section 34 .

The hold unit 34 stores the data sent at high speed to the next A.
The data is temporarily held and stored until the A/D conversion by the /D converter 35 is completed.

The A/D converter 35 converts the analog signal from the detection matrix 20 into a digital signal in predetermined bit units, such as 12 bits, for example, and sends the digital data to the CPU unit 30 via the data bus. Hold part 34.
The operation of the A/D converter 35 is controlled by the logic controller 3.
1 or a signal from a timing generator 36.

A separate output terminal may be provided in the A/Dp converter 35, and the movement of all the pachinko balls on the detection matrix 20 may be stored for a long time.

By detecting the transmission line 22 whose impedance value has changed and the reception line 26 whose reception current has changed, the position of the pachinko ball can be grasped as the coordinates of the position where these intersect.

Note that the detection matrix 20 includes a transmission line 22 and a reception line 26.
Because they are arranged in U-turns and parallel to each other, and are perpendicular to each other, the pattern is simple and unobtrusive, and can be easily manufactured using wire materials such as copper wire. Further, the transmission line 22 and the reception line 26 of the detection matrix 20 are
Compared to the case where the receiving line 26 and the receiving line 26 are bent, the length of the line is shorter and the direct current resistance is lower, so the response sensitivity is better.

Furthermore, the diameter of the transmission line 22 and the reception line 26 is 207t.
Since the transmitting line 22 and the receiving line 26 are thin, ranging from m to 50 JLm, they can detect pachinko balls well without obstructing the game.

Moreover, the transparent conductive film 28 on the surface of the outer glass plate 17c is
It has the effect of shielding the electrical influence of metals and derivatives from the outside and increasing the reaction sensitivity to pachinko balls.

The positions of the detection units 20a, 20a, etc. corresponding to the safe holes 14a, 14a, etc. are memorized, and the position of the out hole 15 is also memorized (no detection is done at the out hole 15, and the detection unit is fired and the board surface 11, and monitor the state of the pachinko balls as the game progresses. Depending on the situation, the data may be used to manage the setting, check for abnormalities due to fraud, or use as data for nail adjustments, etc.

(Experiment 1) In order to examine the relationship between the direct current resistance values of the transmission line 22 and the reception line 26 and the reaction sensitivity, the following experiment was conducted.

The width between the 22 transmitting lines and the receiving line 26 is 1 mm+, the folding width of the transmitting line 22 and the receiving line 26 is 8 mm, and the diameter is 30 mm, and the current sent to the transmitting line 22 is a continuous sine wave centered at 0. Using normal pachinko balls and a normal-sized pachinko game machine, the DC values of the transmitting line 22 and receiving line 26 were varied by the same value, and the reaction sensitivity was measured.

The results are shown in FIG. In addition, in FIG. 17, since the reaction sensitivity varies in a complicated manner depending on the distance between the detection matrix 20 and the pachinko ball, it is schematically shown as a graph.

Referring to FIG. 17, if the reaction sensitivity is below point Q, the passing of a pachinko ball cannot be effectively detected, and if the reaction sensitivity is above point P, the passing of the pachinko ball cannot be effectively detected. Or, the reception line may react, making the reaction position inaccurate. Therefore, for reaction sensitivity, it is desirable that the direct current resistance value of the transmission line 22 and the reception line 26 be 10Ω or more and 200Ω or less, and 25Ω is particularly good in order to make it inconspicuous to the player.

(Experiment 2) In order to examine the relationship between the folding width of the transmission line 22 and the reception line 26 and the response sensitivity, the following experiment was conducted.

The width between the 22 transmission lines and the reception line 26 is 1 mm.

The direct current resistance value of the transmitting line 22 and the receiving line 26 is 25Ω, the diameter is 3011II11, the current sent to the transmitting line 22 is a continuous sine wave centered on Ov, and a normal size pachinko ball is used. In a Bachinko game machine, the folding widths of the transmitting line 22 and the receiving line 26 were changed to the same value, and the response sensitivity was measured.

The results are shown in FIG. Furthermore, in Fig. 18, the first
Similar to Figure 7, this is a schematic graph.

Referring to Figure 18, similar to Experiment I, the reaction sensitivity is
Since it needs to be set within the range of Q point or more and P point or less,
It can be seen that the reaction sensitivity is good when the folding width of the transmission line 22 and the reception line 26 is 4 mm or more and 16 mm or less, especially 8n+m in relation to the size and distance of the pachinko balls.

Next, a second embodiment of the present invention will be described.

FIG. 9 shows the shape of the transmission line or reception line of the second embodiment. That is, the transmission line 222 or the reception line is bent in a zigzag shape. This embodiment is the same as the first embodiment except for this difference in shape.

Next, a third embodiment of the present invention will be described.

FIG. 10 shows the shape of the transmission line or reception line of the third embodiment. That is, the transmission line 322 or the reception line is
The detection unit 20b has a rounded shape.

This embodiment is also the same as the first embodiment except for this shape.

Next, a fourth embodiment of the present invention will be described.

FIG. 11 shows the shape of the transmission line or reception line of the fourth embodiment. That is, the transmission line 422 or the reception line is
The detection unit 20c has a zigzag shape, and the detection unit 20c bulges out into a square shape, and is arranged in a zigzag shape to mesh with the adjacent transmission line or reception line. This embodiment is also the same as the first embodiment except for this shape.

As shown in the second, third, and fourth embodiments, the transmission line or the reception line can have various shapes depending on the use, purpose, etc.

Next, the fifth embodiment of the present invention will be explained. Ru.

FIG. 12 shows the shape of the detection matrix of the fifth embodiment. That is, the plurality of transmission lines 522 and the plurality of reception lines 526 are led from the same direction (downward direction in FIG. 12),
The detection matrix 520 is formed by bending and stretching at 45 degrees in directions that intersect with each other, thereby arranging them in orthogonal directions. This example also differs from the first one except for this shape.
This is similar to the example.

Next, the effect will be explained.

In this embodiment, as shown in FIG.
and area 522B are processed with approximately constant lengths, and the plurality of transmission lines 522 and reception lines 526 have no difference in their total length, compared to the case of the first embodiment. Multiple transmit lines 522 and multiple receive lines 526
This means that the DC resistance values of the transmission line 522 and the reception line 526 are almost the same, so that it is easy to average the DC resistances in the transmission line 522 and the reception line 526, and as a result, it is possible to average the reaction sensitivity.

Next, a sixth embodiment and a seventh embodiment of the present invention will be described.

FIG. 13 shows the shape of the detection matrix of the sixth embodiment. This embodiment is the same as the first embodiment except for this difference in shape.

In this embodiment, the slam lengths are extremely different between area 122A and area 126B.

Further, in the area 126B, the line portion 126a and the line portion 126b have different lengths.

Therefore, the plurality of transmission lines 22 and the plurality of reception lines 26 are
There is variation in DC resistance value.

FIG. 14 shows the shape of the detection matrix of the seventh embodiment. This embodiment is also similar to the first embodiment except for this difference in shape.

In this embodiment as well, the area 222A, the area 226B, and the area 227B have different slam lengths.
7B, the length of the baton is different between the line portion 227a and the line portion 227b.

Therefore, the plurality of transmission lines 22 and the plurality of reception lines 26 are
There is variation in DC resistance value.

However, the detection matrix may have the shapes shown in the sixth and seventh embodiments depending on the application, purpose of use, etc.

In this way, the sensing matrix can have various shapes depending on the application, intended use, etc.

Next, an eighth embodiment of the present invention will be described.

FIG. 15 shows the structure of the inner glass body with the sensing matrix of the eighth embodiment. That is, the inner glass body 817 includes an internal protective glass plate 817a, a receiving glass base substrate 817b, a transmitting glass base substrate 917b,
It has a quadruple laminated structure of outer glass plates 817c, and a plurality of parallel folded receiving lines 826 are formed on one side of the receiving side glass base substrate 817b, and an inner protective glass plate 817a is bonded thereon. A plurality of parallel folded transmission lines 822 are connected to the transmission side glass base substrate 9.
17b, and an outer glass plate 817 is formed on one side of the glass plate 17b.
C or pasted together.

The inner glass body 817 is connected to the substrate surface of the receiving side glass base substrate 817b and the transmitting side glass base substrate 917b.
It is manufactured by bonding the substrate surfaces of the substrate together using a transparent adhesive. The rest is the same as the first embodiment.

In this way, the two glass base substrates 817b and 917b are bonded together to form the inner glass body 817.
By manufacturing the inner glass body 817, it becomes easy to manufacture the inner glass body 817.

In this embodiment, instead of using two glass base substrates 817b and 917b, one sheet is used, and both sides of the glass base substrates 817b and 917b are slapped to form folded transmission lines 8.
22 and a folded receiving line 826 may be formed.

Further, a slamming process may be formed on the inner protective glass plate 817a and the outer glass plate 817c.

Furthermore, the glass base substrates 817b and 917b may be made of a plastic film in addition to glass.

Next, a ninth embodiment of the present invention will be described.

FIG. 16 shows the transmission line or reception line of the ninth embodiment. That is, the transmission line 922 is connected to the glass base substrate 1
A transparent conductor pattern of 1, T, O, film 922a is formed on the surface of one side of 17b by vapor deposition using high-temperature or low-temperature sputtering, and a copper film is formed on the vapor-deposited portion along the pattern. The metal 922b is formed by vapor deposition. Similarly, the reception line is formed by forming a transparent conductor pattern of 1, T, O, film on the other surface of the glass base substrate 117b, and depositing copper thereon.

Next, the effect will be explained.

Even if the copper pattern of the transmission line 922 or the reception line is disconnected, the transparent conductor pattern underneath is connected, so that the transmission line or reception line pattern can be prevented from disconnection.

In addition, copper is 1. Instead of vapor depositing the T, O, film, a copper foil may be attached using a conductive adhesive.

Although the above embodiment shows a pachinko game machine, the detection matrix can be used not only for pachinko game machines, but also for detection devices that count and inspect pachinko balls, such as counting and checking pachinko balls at prize exchange locations. It can be applied to

In addition, by adjusting the density of the detection matrix, it is possible to closely track the trajectory of pachinko balls, allowing for detailed monitoring of the game. The detection matrix may be arranged on the back side of the board of the pachinko game machine.

Note that the detection units 20a, 2oa, . . . do not necessarily have to be square, and may have various shapes as appropriate.

Also, the transmission line 22. The conductor constituting the reception line 26 may be made of copper, metal such as aluminum or gold, or a transparent conductive film such as an indium oxide film or a tin oxide film.

Furthermore, in each of the above embodiments, a metal sensor is described in which the transmission line or the reception line or a plurality of detection matrices are configured. It may consist of a simple configuration.

It is also possible to follow the trajectory of pachinko balls, and the game can be monitored in detail. The detection matrix may be arranged on the back side of the board of the pachinko game machine.

Note that the detection units 20a, 20a, . . . do not necessarily have to be square, and may have various shapes as appropriate.

Also, the transmission line 22. The conductor constituting the reception line 26 may be made of copper, metal such as aluminum or gold, or a transparent conductive film such as an indium oxide film or a tin oxide film.

Furthermore, in each of the above embodiments, a metal sensor is described in which a plurality of transmission lines or reception lines constitute a detection matrix, but the number of transmission lines or reception lines does not necessarily have to be plural; It may consist of a simple configuration.

Next, a tenth embodiment of the present invention will be described.

19 to 32 show a first embodiment of the present invention. In the tenth embodiment, similarly to the first embodiment, a metal detection device is configured using a metal sensor, and this is applied to a pachinko game machine.

As shown in FIG. 19, the plurality of transmission lines 622 are configured such that one transmission line 622 makes a U-turn at the folded part 61 to form a parallel folded shape, and one of these lines is arranged in parallel in one direction on the same plane. It is located. Further, the plurality of reception lines 626 are similarly configured such that one reception line 626 is U-turned and folded back in parallel, and these are arranged in parallel in one direction on the same plane. Transmission terminal 623 and reception terminal 62
7 are concentrated at the lower end of the inner glass body (front glass) 617 in vertical relation when attached to the pachinko game machine.

Each receive line 626 is electromagnetically coupled to each transmit line 622;
The detection matrix 620 is arranged in a plane parallel to each transmission line 622 and in a perpendicular crossing direction so that the electromagnetic characteristics change when a metal such as a pachinko ball approaches. There is.

A detection matrix 620 shown in FIG. 19 is attached along the board of a pachinko game machine as shown in FIG. 2, as in the first embodiment. In the front view of FIG. 19, each square portion surrounded by each crossing transmission line 622 and each reception line 626 is a detection unit 620a, 620a...
・I am doing the following. Some of the detection units 620a, 620m... are safe holes 14a, as shown in FIG.

14a... is supported. The detection matrix 620 is provided on an inner glass body (front glass) 617, which is the inner side of the two glass bodies that cover the board as shown in FIG. 3 and is on the board side.

FIG. 20 (A) shows an enlarged cross-sectional view of the inner glass body, and (B)
) shows an enlarged view of the part circled by a broken line in (A). The inner glass body 617 has an inner protective glass plate 617 that is a protective sheet for the receiving line 626 (shown in FIG. 19).
It has a four-layered structure including a receiving side glass base substrate 617b, a transmitting side glass base substrate 617c, and an outer glass plate 617d which is a protective sheet for the transmitting line 622 (shown in FIG. 19).

The inner glass body (front glass) 617 typically has a vertical length a of 367±10 mm and a horizontal length b of 405111 mm.
The glass substrate has a rectangular shape with a size of m±10 mm and a thickness of 3.0 to 3.5 cm. The inner protective glass plate 617a and the outer glass plate 617d are shorter in vertical length than the receiving glass base substrate 617b and the transmitting glass base substrate 617c, and the inner glass plate 61
7, the lower end 617p is exposed.

Internal protective glass plate 617a and receiving side glass base substrate 6
17b, a plurality of parallel folded reception lines 626 are sandwiched between the transmitting side glass base substrate 617c and the outer glass plate 617d, a plurality of parallel folded transmission lines 622 are sandwiched between the transmission side glass base substrate 617c and the outer glass plate 617d. It is sandwiched. Therefore, the inner glass body 617 is arranged by bonding the transmission line 622 on one surface of the transmission side glass base substrate 617c with a transparent adhesive layer 618a, and the outer glass plate 617 is placed on the L thereof.
d with a transparent adhesive layer 618b, a receiving line 626 is bonded and placed on the other side of the receiving side glass base substrate 617b with a transparent adhesive layer 618c, and an internal protective glass plate 617a is transparently bonded thereon. agent layer 618d
The other surface of the transmitting glass base substrate 617c and the other surface of the receiving glass base substrate 617b are bonded together using a transparent adhesive layer 618e.

Outer glass plate 617d that is the front side of the plurality of transmission lines 622
A transparent conductive film for shielding is attached to the entire surface of the . The transparent conductive film is made of indium oxide (1, T, O
, ) or a tin oxide film.

As shown in FIG. 19, a rectangular transmitting-side glass base substrate 617c has a transmitting-side folded substrate 619a made of an elongated flexible printed circuit board (FPC) adhered along one vertical side thereof, and a transmitting-side folded substrate 619a made of an elongated flexible printed circuit board (FPC) is adhered to the transmitting side glass base substrate 617c on the opposite side in the vertical direction. An L-shaped transmission-side routing board 619b, also made of a flexible board, is bonded along the sides of and a part of the bottom side. As shown in FIG. 21, the transmitting side folded board 619a has a plurality of, specifically 32 arc-shaped folded parts 61 formed in a row using a conductive pattern made of copper foil, and as shown in FIG. , one end 62a of the wire 62 is connected to one end 61a of each folded portion 61 by soldering using solder 63 or by welding.

FIG. 23 shows an enlarged view of the portion circled by broken lines in FIGS. 19 and 20. As shown in FIG. 23, on the lower edge of the transmission side routing board 619b on the opposite side,
Along a part of the side, a plurality of, specifically 64, vertically extending transmission terminals 623 for external connection are formed using a conductor pattern made of copper foil.

As shown in FIG. 20(A), the transmission terminal 623 is arranged at the lower end 617p of the inner glass body 617, and is exposed without being covered by the outer glass plate 617d. That is, the outer glass plate 617d is a foldable glass base substrate 617.
C is pasted on top of the transmission line 622 except for the transmission terminal 623. The terminal side of each transmission line 622 has a transmission terminal 623 of each transmission line 622 and a routing section 64 to each transmission terminal 623. Routing section 64 to each transmission terminal 623
is formed on the transmission side routing board 619b by a conductor pattern, and is connected from each transmission terminal 623 to the transmission side routing board 619b.
It stretches along the

The other end 62b of the wire 62 extending from one end 61a of each folded portion 61 is connected to the starting point 64a of the routing portion 64 on the corresponding terminal side by soldering or welding using solder 63, while giving tension to the wire 62. Then, it is connected to the transmission terminal 623 via the routing section 64. In addition, in order to remove high frequency interference, the routing section 64 connects the two straight sections to the circular arc section 64.
Connected with R.

Similarly, the rectangular receiving side glass base substrate 617a has a receiving side folded substrate 61 along one side of its upper end in the lateral direction.
9a, and a receiving side routing board 629b which is elongated along a part of the lower end side in the lateral direction.

is glued. Similar to the transmitting side folding board 619a, the receiving side folding board 629a has a plurality of, specifically 32, arc-shaped folded parts 61 formed of a conductive pattern made of copper foil, and a wire is attached to one end 61a of each folded part. One end 62a of 62
are connected by soldering using solder 63 or by welding.

At one lower end of the receiving side routing board 629b on the opposite side, a transmitting side glass base board 61 is placed on the edge thereof and along a part of the side.
When the receiver glass base substrate 617b is attached to the receiver glass base substrate 617b, a plurality of receiver terminals 627 for external connection are formed by conductor patterns made of copper foil at non-opposing positions that do not overlap with each other, specifically extending in the vertical direction of the 64 tree. is formed.

As shown in FIG. 20, the receiving terminal 627 is arranged at the lower end 617p of the inner glass body 617, and is not covered by the inner protective glass plate 617a and is exposed. That is, the internal protective glass plate 617a is connected to the receiving side glass base substrate 61.
7b is pasted on top of the receiving line 626 excluding the receiving terminal 627. The terminal side of each reception wA 626 includes a reception terminal 627 of each reception line 621 and a routing section 64 to each reception terminal 627. The routing portion 64 to each receiving terminal 627 is connected to the receiving side routing board 629b by a conductor pattern.
from each receiving terminal 627 to the receiving side routing board 62.
It extends along 9b.

The other end 62b of the wire 62 extending from one end 61a of each folded portion 61 is connected to the starting point 64a of the routing portion 64 on the corresponding terminal side by soldering or welding using solder 63, while giving tension to the wire 62. The receiving terminal 627 is connected to the receiving terminal 627 via the routing section 64.

The transmission line 622 and the reception line 626 are thus connected to each folded portion 61 formed on each folded substrate 619a, 629a,
Each routing portion 6 formed on each routing board 619b, 629b
4, each wire 62, a transmission terminal 623 forming the end of the transmission line 622, and a reception terminal 627 forming the end of the reception line 626.
It is composed of. Each wire 62 is black in color with a matte finish applied to its surface to prevent reflection of light so as not to be noticeable to players.

Detection matrix 6 suitable for normal pachinko game machine 10
20 patterns have 622 transmission lines or 32 lines and 62 reception lines.
There are 32 rows of 6, and the total number of detection units 620a is 1024.
pattern. Note that in FIG. 19, patterns other than those on the outside are omitted.

Transmission line 622. The thickness of the wire constituting the receiving line 626 is preferably 25 μm to 30 #1. is set to the value of m. In the case of this embodiment, as shown in FIG.
The overall widths c and d of the reception terminal 627 are each 1
26 mm, and as shown in FIG. 21, the widths e and f of the vertically extending portions of the transmitting side folding board 619a and the transmitting side routing board 619b are each formed to be 110l11 or less.

Further, as shown in FIG. 23, the width g of each of the transmitting terminal 623 and the receiving terminal 627 is 1.5 m+o. By setting the widths e and f of the routing portion 64 to 10 mm or less, the transmitting side folding board 619a and the transmitting side routing board 619b are hidden in the mounting frame for the inner glass body (front glass) 617 of the pachinko game machine. 9 so that it cannot be seen from the front side where the players are.

As shown in FIG. 24, a transmitting circuit board 66a and a receiving circuit board 66b are installed at the inner lower part of the mounting frame. 640 is provided, and the receiving circuit board 66b is provided with a receiving circuit 650 that receives signals from the plurality of receiving lines 626. These substrates 66a
.

Above 66b, there is a transmitting terminal 623 and a receiving terminal 627.
Transmit connector 67a and receive connector 6 at positions corresponding to
7b is provided.

The transmission connector 67a connects the transmission terminal 623 to the transmission circuit board 6.
The receiving connector 67b is an edge connector for detachably connecting the receiving terminal 627 to the receiving circuit 650 on the receiving circuit board 66b. That is, the transmission connector 67a and the reception connector 67b are
A groove 68a is formed along the length of the elongated insulator 68 along the transmitting circuit board 66a and the receiving circuit board 66b.
are formed, and each circuit board 66a,
A large number of conductive wires connected to the substrates 66b are buried vertically in each of the substrates 66a and 66b while being insulated by a rubber base so as not to contact each other.

In the groove 68a of each insulator 68, an inner glass body (front glass) 6 in which a transmitting terminal 623 and a receiving terminal 627 are arranged.
The transmitting connector 67a is connected to the transmitting terminal 623 of the transmitting line 622 while sandwiching the inner glass body 617 from both sides, and the receiving connector 67b is connected to the receiving terminal 627 of the receiving line 626 in this state. Connecting.

Transmission terminal 623 and reception terminal 627 and transmission circuit 640
For connection with the receiving circuit 650, the transmitting terminal 623 and the receiving terminal 627 are positioned below the inner glass body 617 so as to be connectable to the transmitting connector 67a and the receiving connector 67b, and inserted into the groove 68a. This is done by mounting the inner glass body 617 within the mounting frame so that the transmitting terminal 623 and the receiving terminal 627 are reliably connected to the transmitting connector 67a and the receiving connector 67b by their own weight.

The signal processing system constituting the metal detection device for detecting pachinko balls is as shown in FIGS. 25 to 29.

As shown in FIG. 25, the detection matrix 620 is under the control of the CPU memory control board 72 via the matrix I10 transmit/receive board 71. The CPU memory control boat 72 can communicate via a communication line 79, and can also read and use data on the card 73. The cart 73 contains data on the positions of the safe holes 14a, 14a... and the safe hole 1.
4a, 14a, . . . , the detection algorithm for pachinko balls entering the pachinko balls is recorded. In addition, as a cart, RAM
Card, mask ROM, EPROM, one-shot RO
M etc. can be used.

An option card 74 connected to the CPU memory control board 72 is a device for recording the trajectory of pachinko balls moving between the board 11 and the inner glass body 617 of the pachinko game machine 10. The option card 74 may be stored in a semiconductor memory or the like, but during times when the number of players increases, the operation rate of the pachinko game machine 10 is high, so a huge amount of storage capacity is required. Semiconductor memory that requires this is generally expensive or requires more space, so hard disks are now being used to record the movements of pachinko balls. The recorded data is processed by a computer equipped with software for analyzing the trajectory of pachinko balls, and the necessary data can be obtained at the pachinko parlor (hall).

The matrix I10 transmitting/receiving board 71 includes the transmitting circuit 6
40 and a receiving circuit board 66b including a receiving circuit 650.

As shown in FIG. 26, the transmitting circuit 640 includes a transmitting connector 641 and an amplifier 64 connected to the transmitting connector 641.
2, channel switching logic 643, and amplifier 64
2 and an analog multiplexer 644 connected to channel switching logic 643; It is composed of a totem pole driver 645.

As shown in FIG. 27, the channel switching logic 643 effectively utilizes the counter IC 643a and operates using two control lines, one for clock and one for reset.

As shown in FIG. 28, the receiving circuit 650 connects a plurality of, specifically 32, receiving lines 6 via a receiving connector 67b.
32 CT sensors (current transformers) 651 each connected to the 26 side, an analog multiplexer 652 connected to the CT sensor 651, an amplifier 653 connected to the analog multiplexer 652, and a channel switching logic 6.
54, amplifier 653 and channel switching logic 6
54 and a receiving connector 655 connected to the terminal 54. The CT sensor 651 insulates each receiving line 626 from the analog multiplexer 652 and amplifies the signal from each receiving line 626 by ten times. Channel switching logic 654 is a member similar to channel switching logic 643 of transmitting circuit 640.

As shown in FIG. 29, the CPU memory control board 72 has a CPU connector 662 connected to a CPU unit (not shown) and a CPU connector 66 on the transmitting side.
2, a sequence control circuit 663 that sends a transmission clock in response to a start signal from the CPU unit, and a bandpass filter 6 that receives a transmission clock and sends a transmission signal.
64, and an amplifier 665 for amplifying the transmission signal and sending it to the transmission connector.

Further, on the receiving side, the CPU memory control board 72 includes an amplifier 671 that amplifies the received signal from the receiving connector 655, and a bandpass filter 6 that receives the amplified signal.
72, an aftereffect rectifier/amplifier 673 that receives the received signal from the bandpass filter 672, and an aftereffect rectifier/amplifier 67.
A two-stage low-pass filter 67 receives the received signal from 3.
4a, 674b, and the low-pass filter 674b, and is controlled by the sequence control circuit 663 and sends it to the digital data bidirectional RAM 676.
A converter 675, its digital data receiver, and a bidirectional RAM 676 that writes received data under the control of a sequence control circuit 663 and sends the received data to the CPU unit via the CPU connector 662 in response to a read signal from the CPU connector 662. have.

The bidirectional RAM 676 has an internal counter, and all processing of pachinko ball matrix data 54 is performed by this counter. moreover,
The CPU memory control boat 72 has a power supply unit 677.

The voltage waveform to the transmission line 622 has a frequency of 0.5 to 2.
．． A continuous sine wave centered around 0■ of 0MHz, especially,
A sine wave of 1.0 to 1.3 MHz is suitable. The pachinko game machine 10 generates noise of various frequencies depending on the model. If the frequency of this noise and the transmission frequency to the detection matrix 620 match or are close to each other, the accuracy of detecting pachinko balls will deteriorate significantly. Therefore,
0.5 to 2.0 depending on the model of pachinko game machine 10
Prepare several metal detection devices with a transmission frequency that does not match or approach the frequency of the noise in the MHz frequency band, and select a metal detection device with a transmission frequency suitable for the pachinko game machine 10 to be installed. Select
Make sure to install it.

Next, the effect will be explained.

Address signals and control signals from the CPU unit are sent to the CPU connector 662 in the same manner as in the first embodiment.
The information is then transmitted to the pachinko game machine 10.

In the pachinko game machine 10, on the transmission side, a sequence control circuit 663 receives the start signal, divides the 16 MHz original clock as necessary, and outputs a transmission clock. The transmission clock from the sequence control circuit 663 is waveform-shaped from a digital signal to an analog signal by a bandpass filter 664, amplified by an amplifier 665, and sent to the transmission connector 641.

Furthermore, the transmission signal is amplified by an amplifier 642 in a transmission circuit 640 . The analog multiplexer 644 sequentially operates the totem bold 2 driver 645 according to the channel switched by the channel switching logic 643.
Thereby, the totem pole driver 645
The signal amplified by 42 is sent to the transmission line 622 at a predetermined period.
(See step 691 in FIG. 30).

On the receiving side, as shown in FIG.
The current that is the electromagnetic characteristic value appearing in the CT sensor 65
1, it is amplified ten times.

Since amplification is performed by the CT sensor 651, there is no need to increase the amplification degree of the amplifier on the receiving side. C
Since the amplification by the T sensor 651 is performed by insulating each receiving line 626 and the analog multiplexer 652,
This can be done without generating noise. As a result, compared to the case where an OP amplifier is used, it is possible to prevent the generation of noise and DC drift due to the OP amplifier itself, and it is possible to improve the detection accuracy of the received signal.

By using the CT sensor 651, there is no need to use an OP amplifier, which is generally larger than a CT sensor, and the matrix I10 transmission/reception board 71 can be made smaller.

The analog multiplexer 652 switches the signals from each receiving line 626 that have passed through the CT sensor 651 using a channel switching logic 654, and sequentially outputs the signals at a predetermined period. The signal from analog multiplexer 652 is amplified 100 times by amplifier 653 (see step 692 in Figure 30).

The received signal is amplified and detected through a receiving connector 655, an amplifier 671, and a bandpass filter 672. The received signal from the band pass filter 672 is an analog signal in which one scan is several cycles, as shown in FIG. 31(A). This analog signal is subjected to waveform shaping in the aftermath rectifier/amplifier 673, as shown in FIG. 31(B).

The signal from the aftereffect rectifier/amplifier 673 is averaged by an integration process in a low-pass filter 674a as shown in FIG. ), averaging is performed. As a result, noise is also averaged with the received signal, but the amount of noise is extremely small compared to the signal, and errors due to noise can be ignored. This is because when averaging is performed by the low-pass filters 674a and 674b, there is no noise sufficient to cause an error since the signal has already passed through the band-pass filter 672. For this reason, the transmission frequency is selected to be a frequency that is not affected by the noise of the pachinko game machine IO, or a band pass filter 672 that is suitable for the transmission frequency is used.

The received signal is then sent to A/D converter 675. The A/D converter 675 converts the signal from the detection matrix 620 into a digital signal in units of predetermined bits, such as 12 bits, and records the received data in the bidirectional RAM 676 under the control of the sequence control circuit 663 (the 30th (see step 693). This processing speed is 25,000 times per second. Bidirectional RAM6
76 records the received data independently of the operation of the CPU unit 30 by the write signal from the sequence control circuit 663, and then increments the address by +1 by inputting the l clock (see step 694 in FIG. 30). The capacity of the bidirectional RAM 676 is, for example, 2048 bytes.

In this way, the analog multiplexer 6 of the receiving circuit 650
52 or the signal from each receiving line 626 (see step 695 in FIG. 30), and repeating the above steps 32 times depending on the 32 receiving lines 626 (step 69 in FIG. 30).
(see 6). After 32 repetitions, the analog multiplexer 644 of the transmitter circuit 640 switches the transmitter line 622 (
(see step 697 in FIG. 30), the signal processing is repeated again.

The CPU unit reads the data regarding the position of the pachinko balls recorded in the bidirectional RAM 676 according to the read start signal as necessary, and performs arithmetic processing. and,
The CPU unit repeats this process. Each circuit and CPU unit of the CPU memory control board 72 are as follows:
Since processing is performed while ignoring mutual waiting time, CP
The burden on the U unit 30 is reduced, and the CPU unit 30
This can speed up the processing speed.

For the CPU unit 30, if the algorithm for ball detection is simple, it is sufficient to use an inexpensive 8-bit CPU; if a complicated algorithm is required, a CPU unit 30 can be used to perform high-speed processing. , 16-bit l-CPU
It is best to choose one that uses In either case, the scanning speed of the pachinko balls is not affected by the CPU because the scanning does not involve the CPU.

In this way, when a current is passed through the folded transmission line 622 to generate a magnetic field, and an electromotive force is generated by mutual induction in the reception line 626 which is electromagnetically coupled to the transmission line 622, the detection unit 620a detects a pachinko field. When a ball is hit, an eddy current is generated on the surface of the metal pachinko ball in a direction that cancels out the magnetic flux produced by the detection matrix 620. As a result, the impedance, which is an electromagnetic characteristic of the detection matrix 620, changes at that position, and the magnitude of the electromotive force in the receiving line 626 changes. At this time, the transmission lines 622, 622, . . . and the corresponding reception lines 626, 626, . . . are detected by scanning.

Therefore, the position of the pachinko ball is determined by the receiving lines 626, 626... whose impedance has changed and the transmitting line 62 at that position.
It can be understood as the coordinates of the intersecting position, such as 2,622... The number of detection units 620a is the transmission line 62.
Since there are 32 rows of 2 and 626 receiving lines or 32 columns for a total of 1024 balls, which safe hole 14a on the board 11 does the pachinko ball fall into?
It can also be detected even if it passes through the out hole 15.

Note that the voltage waveform to the transmission line 622 is a continuous sine wave centered on Ov, so it does not generate noise like a square wave and can prevent the influence on other devices such as the CPU unit. can.

In addition, the voltage waveform has a transmission frequency band of 0.5 to 2.0MH.
z, more preferably 1.0 to 1.3 MHz,
In addition to making it less susceptible to the effects of noise generated by the Bachinkome machine IO itself and its peripheral equipment, it is also possible to increase reaction sensitivity. Note that components that can process signals in a frequency band of 0.5 to 2.0 MHz are cheaper than components that process signals in a higher frequency band. Furthermore, depending on the model of the pachinko game machine 10, a metal detection device whose transmission frequency matches or does not approach the frequency of the noise is selected, so that good pachinko ball detection accuracy is obtained without being affected by noise. Something will happen.

Moreover, the transparent conductive film 28 on the surface of the outer glass plate 17d is
It has the effect of shielding the electrical influence of metals and derivatives from the outside and increasing the reaction sensitivity to pachinko balls.

The CPU unit reads the positional data of the detection units 620a, 620a, etc., which correspond to important points such as the safe holes 14a, 14a, . . . The progress of the game is monitored by tracking the movement of pachinko balls on the board as changes in coordinates. Depending on the situation, this information can be used to control the setting of nails, check for abnormalities caused by fraud, or be used as data for nail adjustments, etc. When monitoring the state of pachinko balls in the new pachinko game machine 10, the card 73 may be replaced accordingly. The card 73 can be manufactured by copying one card as long as it is used in the same model of pachinko game machine 10.

In addition, in order to connect the transmitting terminal 623 and the receiving terminal 627 to the transmitting and receiving connectors 67a and the receiving connector 67b on the inside lower part of the mounting frame with the transmitting terminals 623 and receiving terminals 627 facing downward, the weight of the inner glass body (front glass) 617 is used. In addition, the connection can be made simultaneously when the inner glass body 617 is attached to the mounting frame. However, the transmitting connector 67a and the receiving connector 6 are located on the inside upper part of the mounting frame.
7b, and the transmitting terminal 623 and the receiving terminal 627 may be connected with the upper side. In this case, the transmitting connector 67a, the receiving connector 67b, the transmitting circuit board 66a, and the receiving circuit board 66b may be hidden from view. can do.

When replacing or attaching the inner glass body 617 provided with the detection matrix 620, the transmitting connector 67a and the receiving connector 67b are removable, and the inner glass body 617 can be easily removed from the transmitting circuit 640 and the receiving circuit 650 of the mounting frame. Therefore, a failed detection matrix 620 can be easily replaced, and the detection matrix 620 can also be easily attached to a pachinko game machine that is not equipped with the detection matrix 620.

(Experiment 3) The following experiment was conducted to examine the relationship between the noise frequency of a pachinko game machine and the suitability of the transmission frequency.

The noise frequency was measured for 10 pachinko game machines from PI to PIO, and a detection matrix was attached to each pachinko game machine according to the configuration of Example 1O, and the noise frequency was 0.57 MHz.
, 0.8 MHz, 1.0 MHz, and 1.3 MHz. The determination of the occurrence of noise was made based on the number of mask bits at which noise disappears with respect to the received signal converted into a digital signal by the A/D converter.

The results are shown in FIG. In Figure 32, the occurrence of noise is determined using a 3-bit mask with no noise as ◎ and 4.
If the bit mask eliminates noise and is determined to be ◎ by adjusting the transmission voltage up, etc., the noise will disappear with the O15 bit mask, if there is a 4 bit mask and a few noises flicker, △, and below these are indicated by X. There is.

Referring to FIG. 32, it can be seen that by separating the transmission frequency from the noise frequency by about 0.2 to 0.3 MHz, the influence of noise on the received signal can be significantly reduced. In addition, in cases where noise is generated over a wide range of frequencies, such as the Pachinko game machines Pi and P7, increasing the frequency increases the response sensitivity, so it is 1.3
It can be seen that the influence of noise is the least at a transmission frequency of MHz. Also, at a transmission frequency of 1.3MHz,
It can be seen that almost no noise effect is observed in all pachinko game machines from PI to PIO.

Next, an eleventh embodiment of the present invention will be described.

33 to 35 show an eleventh embodiment of the present invention. This embodiment is the same as the 10th embodiment except for the connection between the transmitting terminal and the receiving terminal and the transmitting circuit and the receiving circuit, and the same members as those in the 10th embodiment are given the same reference numerals. and omit duplicate explanations.

As shown in FIG. 33, a transmitting circuit board 766a and a receiving circuit board 766b are installed on the inner lower part 765 of the mounting frame, and on top of them are a transmitting terminal 723 and a receiving terminal 765.
A transmitting connector 67a and a receiving connector 67b are provided at positions corresponding to 27. The transmitting connector 67a is a rubber connector for removably connecting the transmitting terminal 723 to the transmitting circuit, and the receiving connector 67b is a rubber connector for removably connecting the receiving terminal 727 to the receiving circuit. That is, the transmission connector 67a and the reception connector 67b are constructed by winding a large number of connection wires 69 around an elongated insulator 68 along the transmission circuit board 766a and the reception circuit board 766b. The connection wires 69 are connected to the transmission terminals 723, the reception terminals 727, and their corresponding transmission circuit terminals and reception circuit terminals in an l-to-l or one-to-many manner, that is, one or more wires for each of them, preferably. It is connected in a way that corresponds to 5 times.

Each transmission terminal 723 and each reception terminal 727 are arranged on the edge of the lower end 617p of the inner glass pair 617, or
As shown in FIGS. 34 and 35, a terminal fitting 720a is further provided thereon, sandwiching the edge of the lower end 617p of the inner glass body 617 from both sides.

The transmission terminal 723 and the reception terminal 727 are connected to the transmission circuit and the reception circuit, as shown in FIG.
The transmitting terminal 723 and the receiving terminal 727 on the edge of the inner glass body 617 are positioned at the bottom of the inner glass body 617 due to their own weight of about 1.2 kg, and the transmitting connector 67a and the receiving connector 67b
This is done by mounting the inner glass body 617 within the mounting frame so as to contact and connect with the top of the frame.

Next, a twelfth embodiment of the present invention will be described.

This embodiment is the same as the 1st and 10th embodiments, except that it has a triple laminated structure of an inner glass body or an inner protective glass plate, a glass base substrate, and an outer glass plate, and the members are the same as those of the 10th embodiment. The same reference numerals are given to the members, and duplicate explanations will be omitted.

FIG. 36 shows the structure of the inner glass body with the sensing matrix of the twelfth embodiment. In other words, the inner glass body 617 includes an inner protective glass plate 617a, a glass base substrate 887. It has a triple laminated structure of outer glass plates 617c, and has a plurality of parallel folded reception lines 6.
26 is formed on one side of the glass base substrate 887, on which the internal protective glass plate 617a is bonded, and a plurality of parallel transmission lines 622 are formed on the opposite side of the glass base substrate 887, and An outer glass plate 617c is pasted on top.

Note that instead of patterning the transmission line 622 and the reception line 626 on both sides of the glass base substrate 887, they may be formed on the inner protective glass plate 617a and the outer glass plate 617c.

Furthermore, the glass base substrate 887 may be made of a plastic film in addition to glass.

Next, a thirteenth embodiment of the present invention will be described.

This embodiment is the same as the 1st O embodiment except that the routing board has lead parts on both sides, and the same members as those in the 1st O embodiment are given the same reference numerals. , duplicate explanations will be omitted.

As shown in FIG. 37, a rectangular transmitting side glass base substrate 617c has a transmitting side folded substrate 619a made of an elongated flexible printed circuit board (FPC) adhered along one vertical side thereof, and the opposite side in the vertical direction An L-shaped transmitting side routing board 719 is adhered along the side of , and part of the lower end side. As shown in FIG. 23, at the lower end of the transmission side routing board 719, a plurality of external boards, specifically 64 boards, also made of flexible printed circuit boards, extend in the vertical direction along a part of the side. A transmission terminal 623 for connection is also formed.

The routing section 64 to each transmission terminal 623 is connected to each transmission terminal 623.
The wires extend alternately from one wire to the other on both sides of the transmission side routing board 719. The starting point 64a of the end of each routing portion 64 on the back side of the sending-side routing board 719, that is, the side facing the sending-side glass base substrate 617c, corresponds to that of the sending-side routing board 719. It is connected to the front side by a through hole 720 formed at a position. The starting point 64a of each routing portion 64 is connected to the other end 62b of the wire 62 extending from one end 61a of each corresponding folded portion by soldering or welding using solder 63, with tension applied to the wire 62. There is.

In this embodiment, the width of the routing portion extending in the vertical direction of the glass base substrate can be easily shortened to, for example, about 1 On+m or less.

Note that the receiving side routing board of the receiving side glass base board also has through holes formed in the same way as the sending side routing board 719.
Routing portions can be formed alternately for each tree on both sides.

Further, in order to shorten the width of the routing portion, the routing portion may be provided on both sides of the routing substrate, or a plurality of routing substrates may be laminated.

In addition, in each example, the folding board and the routing board are as follows:
One or both of them are flexible printed circuit boards (FP).
Instead of C), it may also consist of a thin glass epoxy substrate. Because the glass epoxy board is milky white, it is unnoticeable when in use, and is resistant to heat, which prevents it from being destroyed by heat when soldering the transmitting and receiving wires.

"Effects of the Invention" According to the pachinko game machine according to the present invention, the trajectory of pachinko balls on the board, the number of pachinko balls hit by a player,
It becomes possible to easily and quickly obtain data such as the rate of balls entering the safe hole, and it becomes possible to know the details of the game remotely, which makes it possible to raise the level of counting management of pachinko game machines. Anyone can easily adjust the nails of a pachinko game machine.

Furthermore, since it has a metal sensor suitable for pachinko game machines, the reaction sensitivity and detection accuracy are consistently good.

[Brief explanation of drawings]

Figures 1 to 8 show a first embodiment of the present invention, with Figure 1 being a schematic front view showing the shape of the detection matrix, and Figure 2 conceptually disassembling the pachinko game machine and the detection matrix. FIG. 3 is a partial vertical sectional view of the pachinko game machine, FIG. 4 is a front view of the detection matrix, FIG. 5 is an enlarged sectional view of the transmission line or reception line, and FIG. 6 is the signal processing. FIG. 7 is a block diagram showing the pachinko game machine side of the system, FIG. 7 is a block diagram showing the main controller side, FIG. 8 is a schematic waveform diagram showing the voltage waveform to the transmission line, and FIG. 9 is a diagram of the second embodiment. FIG. 10 is a schematic front view of the third embodiment; FIG. 11 is a schematic front view of the fourth embodiment; FIG. 12 is a detection diagram of the fifth embodiment. A schematic front view showing the shape of the matrix, FIG. 13 is a schematic front view of the sixth embodiment, FIG. 14 is a schematic front view of the seventh embodiment, and FIG. 15 is a detection matrix of the eighth embodiment. An enlarged sectional view of the inner glass body, FIG. 16 is an enlarged sectional view of the transmitting line or receiving line of the ninth embodiment, and FIG. 17 is a graph showing the relationship between the direct current resistance value of the transmitting line and the receiving line and the reaction sensitivity. Fig. 18 is a graph showing the relationship between the folding width of the transmission line and the reception line and the reaction sensitivity, Figs. 19 to 31 show the tenth embodiment of the present invention, and Fig. 19 shows the front view of the detection matrix. Fig. 20 is an enlarged sectional view of the inner glass body with the detection matrix, Fig. 21 is a detailed front view of the transmission line, Fig. 22 is an enlarged sectional view of the transmission line showing the wire connection state, and Fig. 23. 24 is an enlarged front view of the transmitting terminal, FIG. 24 is a perspective view showing the state in which the inner glass body is connected to the transmitting connector and the receiving connector, FIG. 25 is a schematic configuration diagram of the metal detection device, and FIG. 26 is the matrix I10 transmitting terminal. A block diagram of the transmitting circuit of the receiving board, FIG. 27 is a block diagram showing the main part of the channel switching logic, FIG. 28 is a block diagram of the receiving circuit of the matrix I10 transmitting/receiving board,
Fig. 29 is a block diagram of the receiving and transmitting circuit of the CPU memory control board, Fig. 30 is a flow chart of detection matrix scanning, Fig. 31 is a waveform diagram showing signal processing of the received signal, and Fig. 32 is a pachinko game machine. Embodiment 33 to Embodiment 35 show the eleventh embodiment of the present invention, and FIG. FIG. 34 is a partially enlarged perspective view of the transmitting terminal or receiving terminal; FIG. 35 is a side view showing the inner glass body connected to the transmitting connector and the receiving connector; FIG. 36 is a perspective view showing the state connected to the receiving connector; The figure is an enlarged cross-sectional view of an inner glass body having a detection matrix according to the twelfth embodiment, and FIG. 37 is a schematic front view of the routing board according to the thirteenth embodiment. B... Pachinko ball 10... Pachinko game machine 11... Board surface 13... Nail 14a... Safe hole 15... Out hole 17.617... Inner glass body 20... Detection matrix 20a...Detection unit 22.622...Transmission line 26.626...Reception line 28...Transparent conductive film 30...CPU unit 31...Logic controller 32...Impedance matching driver 33...
・DC offset converter 34...Hold unit 35...A/D converter 40...Output system 41...Transmission coil driver 42...Decoder 43...Logic sequencer 44...Timing generator 45 ... Transmission line row counter 50 ... Input system 51 ... Converter 52 ... Multiplexer 53 ... Reception line row counter 54 ... Impedance converter 61 ... Turning section 62 ... Wire 64 ... Routing section 67a... Transmission connector 67b... Reception connector 619a, 629a-folding board 619b, 629b... Routing board 623... Transmission terminal 627... Reception terminal Fig. 1, Fig. 3 Figure 17 Inner glass body / Figure 4 7 ・'=C''7,7゜16 Surface cuff body, -1121
Figure 5 22 22b Figure 11 Figure 12 Figure 526A vdozIj Figure 15 Figure 16 Figure 17 DC resistance value (Ω) Figure 20 (B) 18b Figure 21 2b Figure 23 Control signal from controller □ Fig. 34 720a Fig. 35 Fig. 36 617 18C 66q Fig. 37

Claims (1)

[Claims] 1. A plurality of parallel folded transmission lines arranged on the same plane, electromagnetically coupled to each transmission line, and whose electromagnetic characteristics change as metal approaches. A detection matrix is formed by arranging receiving lines in a plane parallel to the transmitting lines in a direction perpendicular to the transmitting lines, and the electromagnetic characteristics are determined by the approach of the transmitting line among the plurality of transmitting lines and the pachinko ball among the plurality of receiving lines. A pachinko game machine in which a metal sensor is attached to the front glass for detecting a change in the reception line and detecting the position of the pachinko ball in the detection matrix from the intersection position of the transmission line and the reception line, A pachinko game machine, wherein a DC resistance value of the transmission line and the reception line is a value of 10Ω or more and 200Ω or less. 2 The DC resistance value of the transmission line and the reception line is 25
2. The pachinko game machine according to claim 1, wherein the pitch is Ω. 3 A plurality of parallel folded transmission lines are arranged on the same plane, and are electromagnetically coupled to each transmission line, and a plurality of parallel folded reception lines whose electromagnetic characteristics change due to the proximity of metal are connected to the transmission line. A detection matrix is configured by arranging the detection matrix in a direction perpendicular to the plane parallel to the line, and one of the plurality of transmission lines is a transmission line that has transmitted, and one of the plurality of reception lines is a reception line whose electromagnetic characteristics have changed due to the approach of a pachinko ball. A pachinko game machine in which a metal sensor is attached to the front glass to detect the position of a pachinko ball in the detection matrix from the intersection position of the transmission line and the reception line, the transmission line and the reception line A pachinko game machine characterized in that the lines are folded back in parallel, and the folded width is 4 mm or more and 16 mm or less. 4 The folding width of the transmission line and the reception line is 8m.
4. The pachinko game machine according to claim 3, wherein the pachinko game machine is m. 5. Claims 1 and 2, characterized in that the diameters of the transmission line and the reception line are 20 μm or more and 50 μm or less,
Pachinko game machine according to item 3 or 4. 6 A plurality of parallel folded transmission lines are arranged on the same plane, and are electromagnetically coupled to each transmission line, and a plurality of parallel folded reception lines whose electromagnetic characteristics change due to the proximity of metal are connected to the transmission line. A detection matrix is configured by arranging the detection matrix in a direction perpendicular to the plane parallel to the line, and one of the plurality of transmission lines is a transmission line that has transmitted, and one of the plurality of reception lines is a reception line whose electromagnetic characteristics have changed due to the approach of a pachinko ball. A pachinko game machine in which a metal sensor is attached to the front glass to detect the position of a pachinko ball in the detection matrix from the intersection position of the transmission line and the reception line, the current being sent to the transmission line. is a pachinko game machine characterized by a continuous sine wave centered on 0V. 7 The transmission frequency body of the transmission line is 0.5 to 2.0MH
7. The pachinko game machine according to claim 6, wherein the pachinko game machine is in the range of z. 8 A plurality of parallel folded transmission lines are arranged on the same plane, and are electromagnetically coupled to each transmission line, and a plurality of parallel folded reception lines whose electromagnetic characteristics change due to the proximity of metal are connected to the transmission line. A detection matrix is formed by arranging a detection matrix in a direction perpendicular to the plane parallel to the line, and one of the plurality of transmission lines is a transmission line that has transmitted, and one of the plurality of reception lines is a reception line whose electromagnetic characteristics have changed due to the approach of a pachinko ball. A pachinko game machine in which a metal sensor is attached to the front glass to detect the position of a pachinko ball in the detection matrix from the intersection position of the transmission line and the reception line, the detection matrix having 32 A pachinko game machine characterized by having 1024 detection units in which rows of transmission lines and 32 rows of reception lines are arranged in orthogonal directions.