JP3376992B2 - 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 game equipped with a detection device for detecting, in a non-contact manner, movement information such as the presence or movement direction of an object to be detected made of a magnetic material or a metal material.
Regarding the device .

[0002]

2. Description of the Related Art Conventionally, as a detecting portion of this type of detecting device, there has been known one which detects the proximity thereof by changing the circuit constant of an oscillating circuit by utilizing the magnetism or conductivity of the object to be detected. As shown in FIG. 13, when the detected body K enters the magnetic field generated from the oscillation coil L in the high frequency oscillation circuit of several tens kHz, an eddy current flows in the detected body K. The generation of this eddy current causes current loss and consumes the oscillation energy of the high-frequency oscillation circuit, so that oscillation normally stops,
The presence of the detected object K is detected from this oscillation state.

Also, when the object to be detected is a magnetic material,
When the detected object K enters the magnetic field of the oscillation coil L, the interlinkage magnetic flux Φ of the oscillation coil L changes, the self-inductance value of the oscillation coil L changes, the high-frequency oscillation condition collapses, and oscillation stops. Similarly, the presence of the detected object K can be detected.

Therefore, if a plurality of such detection units are provided and the detection condition is determined based on the oscillation condition of each detection unit, it is possible to know the proximity condition such as the moving direction or moving speed of the object K to be detected.

[0005]

However, as shown in FIG.
In the detection part of the detection device shown in FIG. 3, since it is necessary to provide the oscillation coil L having a relatively large size beside the passage of the object K to be detected, there is a problem that the entire device cannot be designed compactly. . In order to know the close condition of the detected body K in detail, it is necessary to provide more detection units on the movement path of the detected body K, and the problem becomes more remarkable. Moreover, in order to know the approaching speed of the detected object K, it is not enough to detect that the detected object K has passed at an approximate position, and so to speak, pinpoint detection is required. In the device, there is a problem in that there are considerable variations in the detection position, and it is difficult to accurately detect the proximity speed and the like.

Further, since the conventional detecting device is composed of a plurality of oscillating coils L and a circuit board electrically connected to the oscillating coils L, the number of parts is large, the assembling work is complicated, and the reliability is high. There was a problem of low. In particular, when a lead wire or the like is used for electrical connection between the plurality of oscillation coils L and the circuit board, not only the number of assembling steps is increased, but also the connection is wrong and the reliability of the device is lowered. It was If the connection is wrong, the moving direction of the object K to be detected may be recognized in a direction opposite to the actual direction, and the reliability of the apparatus will be greatly affected.

The detection device of the present invention has been made for the purpose of solving these problems and improving the reliability and assembling workability, and at the same time, enabling the miniaturization of the entire device. .

[0008]

[Means for Solving the Problem and Its Action / Effect] A pachinko game machine according to the present invention is provided with a pachinko ball, which is launched from a pachinko ball launcher, on a launch path for guiding the pachinko ball to a game board.
At least two detectors that detect the passage of the ball
Arranged so that the launched pachinko ball can pass,
Based on a combination of detection states of the plurality of arranged detection units,
Detecting the moving direction of the pachinko sphere,
A pachinko ball that went out of the game board from the ball launch device
Is a pachinko game machine provided with a means for counting the number of the coil , the detection unit includes a coil formed of a wiring pattern , an oscillation circuit that oscillates using the inductance component of the coil, and an oscillation of the oscillation circuit. Depending on the situation, the switching circuit that turns on and off and the shot pachinko ball can communicate.
A circuit board provided with a through hole for
The surface of the circuit board around the through hole.
And the fact that it is formed on the back surface .

In the pachinko gaming apparatus of the present invention having the above-described structure, the detection unit allows the launched pachinko ball to pass.
And a circuit board provided with a through hole to
Wiring on the front and back of the circuit board around the through hole
A coil as a pattern is formed. Each detector operates as follows. If the pachinko ball is not in the through hole) of the circuit board, the oscillation circuit oscillates using the inductance component of the coil. On the other hand, the object to be detected is a circuit board
When the pachinko ball is positioned in the magnetic field generated by the coil after passing through the through hole of the coil, the oscillation condition is disrupted due to the change of the self-inductance value of the coil or the eddy current loss, and the oscillation state of the oscillator circuit changes and oscillation stops. . The switching circuit is turned on / off according to the oscillation state of the oscillation circuit, and outputs a signal according to the presence or absence of a pachinko ball to the outside.

A plurality of detection units are provided in the launch path of the pachinko ball .
Since a plurality of detectors are arranged adjacent to each other, the detection conditions of the plurality of detectors change depending on the approach or passage of the pachinko balls . Therefore, based on the combination of signals from a plurality of detector, and this <br/> counting the number of pachinko balls detected the direction pass the firing path of least pachinko balls, and went into the game board You can In particular, place the coil of the detector in the launch path.
Therefore, the detection unit can detect the pachinko ball extremely accurately, pinpointed if the detection accuracy is increased,
The accuracy of proximity detection is improved. Also, this slingshot
In the game machine, because it detects the passing direction , it fires
It is possible to measure the number of pachinko balls that go out of the road into the game board and never return . Pachinko this case, the examples of which pass in opposite directions, came I returned, passed
If you subtract the number of balls , without returning to the launch path
It is possible to measure only the number of pachinko balls that have passed and left on the game board .

Here, is the game board on the launch path of the pachinko ball?
There is a branch to the return ball path where the return balls return to the saucer.
If there is a
It can be provided on the game board side from the branch with
It Also, place the detector at a position outside the glass surface of the game board.
It is also possible to provide it on the launch path.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION In order to further clarify the structure and operation of the present invention described above, preferred embodiments of the detection device of the present invention will be described below. FIG. 1 is a perspective view showing an appearance of the detection unit 10, FIG. 2 is an explanatory view showing a schematic configuration of a pachinko gaming machine 1 equipped with a detection device 2 of the embodiment, FIG. 3 is an exploded perspective view of the detection unit 10A, and FIG. Is a circuit diagram of the detection unit 10, and FIG. 5 is a circuit diagram of the entire detection device. Hereinafter, description will be given with reference to each drawing as appropriate.

In this embodiment, a pachinko ball is used as the object to be detected, and the detection device is a pachinko ball which is launched toward the game board 3 on the pachinko game stand 1 and detects the gaming status of the pachinko ball actually used for the game. It was used as a ball launch detection device. This pachinko ball firing detection device is shown in FIG.
5 and the control circuit 70 as the movement information determination unit shown in FIG. For explaining the use of the pachinko gaming machine 1, the detection unit 1
The description will start from 0. As shown in FIG. 2, the detection unit 10 is in the middle of the launch path 5 in which a pachinko ball launched from a pachinko ball launching device (not shown) jumps out to the pachinko game board 3, and a branch point with the return ball path 9. It is located downstream.

The return ball path 9 (one-dot chain line in the figure) is returned to the launch path by the return ball when the initial speed of launch from the pachinko ball launching device is insufficient, or by the elastic force of the nail of the pachinko gaming machine. It is configured so that the returned returning ball is guided to the tray 7 and does not interfere with the firing of the next pachinko ball. Therefore, the pachinko ball to the detection unit 10 normally passes in the direction from the pachinko ball launching device to the pachinko game board 3,
If the initial velocity of launch is insufficient, the vehicle passes in the opposite direction.

Next, the pachinko ball firing detection device 2 is constructed.
The detection unit 10 will be described. As shown in FIG. 1, the detection unit 10 of the pachinko ball ejection detection device 2 has a shape in which two identical detection units 10A and 10B are stacked. The detection units 10A and 10B can be used alone, and here, two of them are stacked and bonded together with an adhesive or the like. The detection unit 10 is arranged in the pachinko ball firing path so that the detection unit 10A is on the upstream side, that is, in the case of a pachinko ball fired by the firing device, the detection unit 10A detects first. The detailed structure of the detection units 10A and 10B will be described. Note that the two detection units 10A and 10
B has the same structure, and in order to avoid duplication of description, structures common to both detection units 10A and 10B are denoted by reference characters A and B.
Will be omitted.

As shown in FIGS. 1 and 3, the detection unit 10 includes
An upper lid 11 and a lower box 12 are provided, and a circuit board 13 is provided inside the combination of both members. The upper lid 11 is provided with a pair of substantially L-shaped L-shaped pieces 21 and 22 and a pair of substantially T-shaped T-shaped pieces 23 (only one side is shown in the drawing). Includes a pair of protruding pieces 31 and 32 that engage with the L-shaped pieces 21 and 22, respectively, and a pair of protruding pieces 33 and 34 that engages with the T-shaped piece 23 (only one side is shown in the figure). Is provided. The upper lid 11 and the lower box 12 are combined with one touch by engaging the respective pieces to form a cubic box body. In addition, the upper lid 11 and the lower box 12,
Through holes 41, 42 through which the pachinko balls P penetrate are provided respectively.

One end of the circuit board 13 projects out of a box body composed of an upper lid 11 and a lower box 12 thereof, and is used as terminals T1 and T2 for connecting to a control circuit 70 which will be described later. The circuit board 13 has a coil L shown in FIG.
1, electronic components such as the transistors Tr1 and Tr2 are assembled. As shown in FIG. 3, the circuit board 13
Is provided with a through hole 51 of the pachinko ball P at a position communicating with the through holes 41 and 42 when the upper lid 11 and the lower box 12 are combined, and the coil L1 has the through hole 5 thereof.
The wiring pattern 52 has a total of two turns, one turn each on the front and back sides, formed around the circumference of one. The back surface of the double-sided board serves as a Faraday shield to prevent noise and prevent the circuit board 13 from malfunctioning.

On the circuit board 13, as shown in FIG.
A power supply terminal T1 to which 2 volts is supplied and a detection terminal T2 are provided. The detection terminal T2 also serves as the ground level of the circuit, and is grounded via the resistor RD on the MPU 72 side. The circuit board 13 includes an oscillator circuit C.
O and a switching circuit SW that is turned on / off based on the oscillation state of the oscillation circuit CO are provided.

The switching circuit SW has a power supply terminal T1.
The voltage of 12V is applied from the
2 is grounded by the resistor RD (resistance value 680Ω in this embodiment), the power supply voltage (voltage between terminals T1 and T2) of the switching circuit SW is equal to the switching circuit S.
It changes depending on the on / off state of the W transistor Tr2. On the other hand, in the oscillation circuit CO, the Zener voltage Vz (this embodiment) which is stabilized by the resistor R1 (resistance value 27 KΩ in this embodiment) interposed between the power supply terminal T1 and the detection terminal T2 and the Zener diode D1 is provided. In the example, about 5.5 volts) is supplied.

The oscillator circuit CO is a twin transistor Tr in which two transistors having the same characteristics are formed in the same chip.
1 and a capacitor C1 and a coil L1 interposed between one emitter of the twin transistor Tr1 and the ground line, and between the other emitter of the twin transistor Tr1 and an intermediate tap of the coil L1. The resistor R3 and the capacitor C2 constitute a Colpitts type high frequency oscillation circuit. The base of the twin transistor Tr1 is connected to the power supply line via the resistor R2. The oscillation frequency of the oscillation circuit CO is the inductance of the coil L1 and the capacitors C1 and C.
2 and the capacity is about 300 KHz in this embodiment.
Has become.

One of the collectors of the twin transistor Tr1 is not used, but the other is connected to the base terminal of the transistor Tr2 of the switching circuit SW. To the base terminal of the transistor Tr2, a capacitor C3 is connected to the ground line, and a resistor R4 is connected to the power supply line. A resistor R5 (220Ω in this embodiment) is connected to the emitter terminal. The collector terminal of the transistor Tr2 is connected to the power supply line. When the oscillating circuit CO is oscillating, the twin transistor Tr1 is repeatedly turned on and off at about 300 KHz, and when the twin transistor Tr1 is on, its collector current flows from the base of the transistor Tr2 of the switching circuit SW, and the transistor Tr2 is turned on. Turn on Tr2. On the other hand, the oscillator circuit CO
While the bi-transistor Tr1 is turned off for a short time due to the oscillation of, the base current of the transistor Tr2 is continued by discharging and charging the capacitor C3, and the transistor Tr2 is kept in the on state.

When the pachinko ball P, which is a metallic object to be detected, passes through the through hole 51 of the circuit board 13 while the oscillation circuit CO is oscillating, the magnetic flux of the coil L1 causes the pachinko ball P to move.
As a result, an eddy current flows in the pachinko ball P, causing a current loss. The pachinko balls P are usually made of metal, but even if the pachinko balls are made of a material other than metal and have their surfaces plated, a thin film such as plating causes a considerable eddy current loss because of a small cross-sectional area. Since the generation of the eddy current consumes the oscillation energy of the oscillation circuit CO, the high frequency oscillation is significantly attenuated and almost stopped.

When the pachinko ball P does not pass through the through hole 51 and is not close to the coil L1, that is, when the oscillation circuit CO is oscillating, the transistor Tr2 is in the ON state, while the oscillation circuit is on the other hand. When the CO oscillation is almost stopped, the transistor Tr2 of the switching circuit SW is
Turns off. Since the resistance value of the resistor R5 is smaller than that of the resistor R1 (220Ω: 27KΩ in this embodiment), when the transistor Tr2 is turned on, the current flowing from the power supply terminal T1 to the Zener diode D1 via the transistor Tr2 and the resistor R5. Is larger than the current flowing through the resistor R1 (in the present embodiment, about 130 times). Since this current finally flows to the ground side via the resistor RD connected to the detection terminal T2, the voltage across the resistor RD, that is, the voltage at the input port P of the MPU 72, is the transistor Tr2 in the off state. About 0.2 volts,
It will be about 4.9 volts in the on state. Therefore, MPU72
By monitoring the state of the input port P, it is possible to easily know the state in which the detection unit 10 detects the pachinko ball P (low level) and the state in which it is not detected (high level).

As described above, the detection signals from the detection units 10A and 10B are input to the input ports PA and PB of the MPU 72, and the MPU 72 can know the passing status of the pachinko balls in the middle of the launch path. The input port PA,
The PB can be read at once. Figure 5 shows this MP
It is a circuit block diagram of the control circuit 70 comprised centering on U72. The control circuit 70 operates as a movement information determination unit, but simultaneously drives and controls the number of rotations of a motor 82 that constitutes the pachinko ball launching device 80, a pachinko gaming console accessory, and the like.

As shown in the figure, the MPU 72 is a one-chip computer having built-in peripheral circuits such as a ROM that stores a program in a nonvolatile manner and a RAM that temporarily stores information. Further, the MPU 72 controls not only the detection signal from the detection unit 10 described above but also the motor driver 74 that adjusts the supply voltage to the DC motor 82 that drives the pachinko ball launching device 80, and is provided in the pachinko game board 3. Input / output interface 90
Controlled or monitored via 6. I / O device 90
There are input devices such as a touch sensor that detects an operation of the handle 92, a winning ball sensor that detects a winning ball, various switches, and electrical components such as a solenoid for driving a accessory and a lamp.

Next, of the various programs executed by the MPU 72, the effective sphere count processing routine for realizing the function of processing the detection signals from the detection units 10A and 10B will be described. FIG. 6 is a flowchart of the pachinko ball firing program. This program is repeatedly processed by interrupt processing at the same time when the MPU 72 starts energization control of the DC motor 82 when the player detects that the player has operated the firing handle 92 with the touch sensor. This repeated processing is executed at sufficient intervals to detect the moving direction of the pachinko balls P. The flags Fn, F in the processing described below
The default value of r and the like is 0.

When this routine is started, the MPU 72
First, a process of reading the states of the ports PA and PB is performed (step S100), and then this state is determined (step S110). When the pachinko ball P passes from the detection unit 10A side, that is, along the normal launch path 5, the detection unit 10A detects the invasion of the pachinko ball P before the detection unit 10B, so that the port PA has a low level (value 0). ), The port PB becomes high level (value 1). In this case, the process proceeds to step S120, and a process of setting the value 1 to the flag Fn is performed (step S120).

On the other hand, when the pachinko ball P enters the detection unit 10 from the detection unit 10B side, the port PB is at the low level and the port PA is at the high level, which is the timing first. In the case where the pachinko ball P enters from the detection unit 10B side, when the pachinko ball P bounces back on the nail of the pachinko game board 3 or comes back, the initial speed of the pachinko ball launching by the pachinko ball launching device 80 is small and the pachinko ball P is a ball. This occurs when returning to the launch path 5 without being hit by the pachinko game board 3 while passing through the launch detection device 2 once. In this case, the flag Fr is set to the value 1 (step S130).

The pachinko ball P is a pachinko ball firing detection device 2
Flag Fn depending on which direction
Alternatively, after setting the flag Fr (step S12
0, 130) and whether or not the contradictory flags Fr, Fn have the value 1 is determined (steps S140, 150). Immediately after the pachinko ball P enters the detection unit 10, the contradictory flags Fr or Fn are not set, so M
After resetting the timer built in the PU 72 (t ← 0) (step S155), the process goes to “NEXT” and this routine is once ended. On the other hand, the pachinko ball P is the detection unit 1.
When passing through 0, or when the detection unit 10 has just returned halfway and returned, both flags are set. Therefore, the behavior of the pachinko ball P and the state of determination will be described.

The states of the ports PA and PB are detected by the detection unit 10
Based on the outputs of A and 10B, both are pachinko balls P
Assuming that the state of not detecting is represented as “11”, the state of one being detected as “01” and “10”, and the state of both being detected as “00”, the behavior of the pachinko ball P is The following five types of changes are possible. When the pachinko ball P is fired and passes normally "11" → "01" → "00" → "10" → "11" When the pachinko ball P returns from the pachinko game board 3 and passes through, "11" → “10” → “00” → “01” → “11” When the pachinko ball P comes to the middle of the pachinko ball firing detection device 2 and returns (A) When only the detection unit 10A detects and returns “11” → “01” → “01” → “01” → “11” (B) When both the detection units 10A and 10B detect and return “11” → “01” → “00” → “01” → “11” (C) When only the detection unit 10B is in the state of detecting once and then returning, "11" → "01" → "00" → "10" → "00" →
"01" → "11"

In the case of step S150, the determination in step S150 finally becomes "YES", and the variable CS indicating the total number of shots of the pachinko balls P is incremented by 1 (step S160). In the case of, the judgment in step S140 finally becomes “YES”,
A process of decrementing the variable CS indicating the total number of shots of the pachinko balls P by 1 is performed (step S170).
In the case of (C), since the determination in step S150 is once “YES” and the variable CS is incremented, the determination in step S140 is subsequently “YES” and the variable CS is decremented. As a result, the variable CS indicating the total number of shots does not increase or decrease. After the processing of steps S120 to S170, the MPU 72 resets the built-in timer by writing the timer variable t value 0, and starts the processing from 0 (step S155).

In the cases of (A) and (B), step S
The judgments at 140 and 150 are never "YES". In such a case, the pachinko ball P is detected by the detection unit 10.
When the ports are released from, both ports PA and PB eventually become high level (value 1), and the process proceeds to step S180. In step S180, the timer t reset in step S155 determines whether or not the time t1 has elapsed since the last pachinko ball P was detected. If not, the flags Fn and Fr are set to 0. (Step S190), exit to "NEXT" and end this routine. As a result, in the cases of (A) and (B), the flag finally returns to the initial state, and the variable CS indicating the total number of shots does not change.

On the other hand, when it is determined that the time t1 has elapsed, the pachinko ball firing detection device 2 does not detect the pachinko ball P for a predetermined time t1 even though the player operates the firing handle 92. In this case, it can be determined that the pachinko balls P have not been supplied to the saucer or that ball clogging has occurred, so abnormal processing is performed (step S200). For abnormal processing, pachinko game machine 1
It is conceivable to perform processing such as notifying the host computer connected to the device or stopping the pachinko ball launching device 80 for a predetermined time.

As described above, according to the pachinko ball firing detection device 2 of the present embodiment, the passing direction of the pachinko ball P can be reliably ensured only by installing this device at one location on the pachinko ball firing path 5. It is possible to identify and reliably detect the total number CS of the pachinko balls P supplied to the pachinko game board 3. The total number CS is reset to 0 every predetermined time,
It may be counted as the number per unit time. Also,
The pachinko ball firing detection device 2 of this embodiment is a pachinko ball P.
Can be reliably detected without contact. Moreover, since the detection unit 10 is configured with the coil L1 by the wiring pattern 52 formed on the circuit board 13, it is integrated with the circuit board 13 and the number of parts is reduced. Therefore, reliability can be improved. Further, since the number of parts is reduced, the assembling workability is excellent, and in particular, it is not necessary to assemble the coil L1 to the circuit board 13. Moreover, the size of the detection unit 10 is limited only to the size of the circuit board 13 itself, and can be made thin and compact.

In addition, the MPU 72 can be simply configured to measure the time from the setting of the flag Fn to the setting of the flag Fr. In this case, the firing speed of the pachinko balls P is detected. It's also easy.

Next, another embodiment of the present invention will be described. FIG. 7 is a circuit diagram showing a schematic configuration of the second embodiment. As shown in the figure, this detection device uses the detection units 10A and 10B described in the first embodiment as they are,
In the control circuit 70, a detection circuit including a pachinko ball passing direction is provided in hardware. The detection result is MPU7
MPU7 by 2 interrupt input INT and input port PC
2 will be notified.

In this embodiment, the output signals from the detectors 10A and 10B are CMOS type Schmitt triggers 2.
01 and 202, and after being waveform-shaped here, both are input to the 2-input NAND gate 204, and the output of the Schmitt trigger 201 is applied to the data terminal D of the D-type flip-flop 205 and the Schmitt trigger 2
The output of 02 is input to the clock terminal CLK of the D-type flip-flop 205. The output of the NAND gate 204 is supplied to the interrupt input INT of the MPU 72 by D
The positive output Q of the type flip-flop 205 is input to the input port PC of the MPU 72.

Detection unit 10A or detection unit 1 of the detection device
When 0B detects the pachinko ball P, as shown in FIG.
The output of the NAND gate 204 becomes high level and the MPU
The interrupt request INT is applied to 72. On the other hand, changes in the outputs of the detection unit 10A and the detection unit 10B have a deviation due to the passage of the pachinko balls P, so the D-type flip-flop 20
The output Q of 5 is the pachinko ball P as shown in FIG.
Is maintained at the low level when passing from the detection unit 10A side to the detection unit 10B side, and is set to the high level in the opposite case as shown in FIG. 8B. Therefore, the MPU 72 which has received the interrupt request receives the input port P after a predetermined time.
By reading the state of C, the passing direction of the pachinko ball P can be known.

According to the second embodiment described above, the same effects as those of the first embodiment can be obtained, and the pachinko ball P can be used in hardware.
Since it is possible to detect the passing direction of the MPU 72, the load on the MPU 72 can be reduced. In this circuit, the D-type flip-flop 205 does not need to be reset or set to the initial state, and the circuit configuration is simple.

Next, a third embodiment of the present invention will be described. Compared to the first embodiment, the detection device of this embodiment is provided with two sets of the oscillation circuit CO and the switching circuit SW on the same substrate, and further has the direction determination circuit DD for detecting the passing direction of the pachinko balls P on the substrate. It was built into. As shown in FIG. 9, this detection device includes a first coil L1A, a first oscillation circuit COA, and a first switching circuit SWA on one surface of a substrate 210 having an opening 209 through which an object to be detected passes. And a direction discriminating circuit DD. Also,
On the back surface of the substrate 210, the second coil L2B and the second coil L2B
The oscillator circuit COB and the second switching circuit SWB are provided.

The electrical construction of the detection device is shown in FIG.
The outputs from the first and second switching circuits SWA and SWB are input to the direction discriminating circuit DD, and the outputs SA and SB of the direction discriminating circuit DD are input to the microcomputer. The direction determination circuit DD includes signals QA and QB from the first and second switching circuits SWA and SWB.
Schmitt triggers 211 and 21 for inputting and shaping the waveform
2, a 2-input NOR gate 214 connected to the outputs of the Schmitt triggers 211 and 212, a D-type flip-flop 21 that operates using the output of the Schmitt trigger 211 as data D and the output of the Schmitt trigger 212 as the clock CLK.
5. AND gates 217 and 21 for masking the output QC of the NOR gate 214 and outputting the negative output Qn and the positive output Qp of the D-type flip-flop 215 as the outputs SA and SB.
It is composed of 8.

The operation of the direction discriminating circuit DD will be described with reference to the timing chart of FIG. As shown in the figure, when the object to be detected passes from the coil L1A side to the coil L1B side, the oscillation of the first oscillation circuit COA stops first, and the output QA of the first switching circuit SWA goes low first. Invert. Then, the second oscillator circuit COB
Stops and the output QB of the second switching circuit SWB is inverted to the low level. Therefore, while both signals fall to the low level, the output QC of the NOR gate 214
Is inverted to high level.

At this time, the D-type flip-flop 215
Operates in the same manner as in the second embodiment, and the detected object moves from the A side to the B side.
When passing to the side, the negative output Qn is at a high level, and as a result, the output SA of the AND gate 217.
Becomes high level only while the output QC of the NOR gate gate 214 is high level, and the pulse signal is output only to the output SA. On the other hand, when the object to be detected passes from the B side to the A side, the positive output Qp becomes high level, so that the pulse signal is output only to the output SB of the AND gate 218.

As described above, according to the detection apparatus of this embodiment, the passage of the object to be detected can be detected as the pulse signal output which differs depending on the passage direction. Therefore, for example, the first
If the total number of detection objects that have passed in one direction is to be detected as in the embodiment, the outputs SA and SB may be connected to the count-up input terminal and the count-down input terminal of one up-down counter, respectively. If the number of detection objects that have passed in each direction is to be detected separately, it may be connected to two independent counters. Further, in the present embodiment, the oscillation circuits COA, COB, etc. are formed on both sides of the substrate 210, and the coils L1A, L1B are formed on both sides of the substrate 210, so that the device can be further downsized. Since the coils L1A and L1B are formed on both surfaces of the substrate 210, it is possible to detect the movement of the detected object with extremely high accuracy.

In the present embodiment, the coils L1A and L1B are provided in close proximity to each other, so that the object to be detected does not necessarily have to pass through the through hole. For example, in the above-described embodiment, the circuit board 210 may not be provided with a through hole, and the portion of the substrate 210 where the coils L1A and L1B are provided may be exposed from the case, or this portion may be covered with a laminate film or the like. . In this case, the detected object approaches the surface of the substrate 210 on which the coil L1A is provided or the surface of the substrate 210 on which the coil L1B is provided. If the sensitivities of the first and second oscillating circuits COA and COB are adjusted so as to stop the oscillation even when the object to be detected approaches from the back surface of the coils L1A and L1B,
It is easy to detect which surface the object to be detected approaches after the oscillation of the first and second oscillation circuits COA and COB is stopped. Similarly, a plurality of circuit boards each having a coil formed thereon are arranged at positions sandwiching the passage of the object to be detected, and the positions of the coils are displaced from each other by a predetermined distance along the moving direction of the object to be detected. If you don't have a through hole,
The passage of the object to be detected can be detected including the passage direction.

In the embodiment described above, the circuit board 13,
Although an ordinary printed circuit board made of resin is used as the base material of 210, a film-like one having high flexibility may be used instead. With such a structure, it is possible to provide a circuit board that is further thinned and that is less likely to damage the portions around the through holes 51 and 209. Further, it is also suitable for further increasing the detection accuracy of the above-described detection unit 10 in which the detection target does not penetrate. For example, it is assumed that a film-shaped printed circuit board is formed into a cylindrical shape or a gutter shape, through which an object to be detected passes, and two or more coils are formed at positions displaced in the passing direction of the object to be detected.
It is also possible to configure the detection device. The detection unit 10 and the MPU 72 can be formed on the same substrate regardless of the material of the circuit substrate.

In some of the above embodiments, coil L1
The wiring pattern 52 forming the wiring pattern has only one turn on the front surface and the back surface. Instead, as shown in FIG. 12, the wiring pattern 61 forming the coil L1 on the circuit board 60 is formed on the surface. It may be formed on the back and two turns each. Of course, a configuration with more turns is also possible.
Further, the number of detecting units is not limited to two, and may be three or more.

The embodiments of the present invention have been described above.
The present invention is not limited to these embodiments. For example, the circuit board is not stored in a case and is used as it is, and a plurality of through holes are provided on the circuit board to cover any of the through holes. It goes without saying that the present invention can be implemented in various modes without departing from the scope of the present invention, such as a configuration for detecting a detection body when it passes.

[0049]

[Brief description of drawings]

FIG. 1 is a perspective view showing a configuration of a detection unit 10 of a pachinko ball launch detection device according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing an arrangement of a detection unit 10 on a pachinko gaming table 1.

FIG. 3 is an exploded perspective view showing a configuration of a detection unit 10.

FIG. 4 is a circuit diagram showing an electrical configuration of a detection unit 10.

FIG. 5 is an electric circuit diagram showing an entire pachinko ball firing detection device 2.

FIG. 6 is a flowchart of a program corresponding to a movement information determination unit of the pachinko ball launch detection device 2.

FIG. 7 is a block diagram showing a main part of a second embodiment.

FIG. 8 is a timing chart explaining the operation of the circuit of the second embodiment.

FIG. 9 is an explanatory diagram showing a configuration of a detection unit 10 in the third embodiment.

FIG. 10 is a block diagram showing a configuration of a determination unit DD in a third embodiment.

FIG. 11 is a timing chart similarly illustrating the operation.

FIG. 12 is a plan view showing another aspect of the wiring pattern forming the coil.

FIG. 13 is an explanatory diagram showing a state of conventional detection of an object using eddy current.

[Explanation of symbols]

10 ... Detector 11 ... Top cover 12 ... Lower box 13 ... Circuit board 51 ... Through hole 52 ... Wiring pattern 70 ... Control circuit 72 ... MPU CO ... Oscillation circuit L1 ... coil SW ... Switching circuit Tr1 ... twin transistors

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G01P 13/04 A63F 7/02 304

Claims (3)

(57) [Claims] 1. A to the firing path for guiding the game board a pachinko ball which is launched from the launching device of the pachinko balls, through the pachinko ball
At least two detectors for detecting excess are fired.
The pachinko balls are arranged so that they can pass through, and
Based on the combination of the detection states of multiple detectors,
The pachinko ball launching device for detecting the moving direction of the ball
Count the number of pachinko balls that went out of the game board from
In a pachinko game device including means for detecting , the detection unit includes a coil formed of a wiring pattern,
An oscillation circuit that oscillates using the inductance component of the coil, a switching circuit that turns on and off according to the oscillation state of the oscillation circuit, and the shot pachinko ball passes through.
And a circuit board provided with a through hole, wherein the coil has the circuit board around the through hole.
Pachinko gaming device formed on the front and back surfaces of . 2. The pachinko game machine according to claim 1.
In the launch path, return balls from the game board are returned to the saucer.
And a branch to the return ball path in the launch path.
A pachinko gaming device that is installed closer to the game board. 3. The detection unit is a glass surface of the game board.
The pachi according to claim 1, wherein the pachi is provided on the launch path at an outer position.
Nko game machine.