JP3213963B2 - Pachinko ball detector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pachinko ball detecting device for detecting the presence of pachinko balls in a non-contact manner.

[0002]

2. Description of the Related Art Conventionally, this kind of pachinko ball detecting device has
It is used for detecting a payout ball in a pachinko machine or a ball lending machine, and a device that detects a pachinko ball in a non-contact manner by an optical method is known. For example, as shown in FIG. 9, a light projector S and a light receiver D are provided at positions traversing the path of the pachinko balls, and the presence of the pachinko balls P is detected by blocking the detection light from the light projector S with the pachinko balls P. is there. As such a pachinko ball detection device, there is a device that outputs a pulse signal each time the pachinko ball blocks detection light, or a device that outputs an active level signal while a pachinko ball is present.

[0003] The latter signal will be described in accordance with an actual configuration. For example, when paying out a prize ball at a pachinko machine, a plurality of pachinko balls are continuously discharged. Therefore, in the prize ball payout mechanism, the pachinko balls are tandemly arranged, and a detection device is provided at the position of the predetermined number of pachinko balls from the beginning to determine whether or not a sufficient number of pachinko balls are ready for payout, and the state of the output signal thereof Is detected by monitoring.

[0004]

However, in the conventional pachinko ball detecting device using light, when the pachinko ball moves, even if the pachinko ball moves in a state of contacting the adjacent pachinko ball, the pulse is detected. There is a problem that a signal is output. That is, as shown in FIG. 9, when a plurality of pachinko balls move in a row, light is not completely blocked between adjacent pachinko balls. The device outputs a pulse signal SP. As a result, even if a sufficient number of pachinko balls are available for payout, it is not possible to obtain a level signal SL that is continuously active. In such a case, if an attempt is made to recognize that pachinko balls are continuously present based on the pulse signal from the pachinko ball detection device, signal processing such as ignoring the pulse signal during a predetermined time must be performed. There is a problem that unnecessary processing is required for processing.

Further, even when the moving speed of the pachinko ball is slow (when the interval between the pulse signals is long), if the level signal is to be reliably obtained, the time constant of the circuit must be considerably large. When the processing is performed, the responsiveness of detection when one pachinko ball passes is reduced.

Although it is possible to provide a circuit for performing the above-described signal processing in the detection apparatus itself, in this case, two types of pachinko ball detection apparatuses having greatly different circuit configurations are required, and the compatibility of parts is required. In addition to loss of performance, new problems such as an unnecessary increase in the number of parts and an increase in labor for inventory management are caused.

The pachinko ball detecting device of the present invention solves such a problem, and can detect pachinko balls in a non-contact manner. Furthermore, the pachinko balls that move in contact with adjacent pachinko balls with almost the same circuit configuration can be used. The purpose is to enable continuous detection, and the following configuration is adopted.

[0008]

A pachinko ball detection device according to the present invention is a pachinko ball detection device in which a pachinko ball detection unit and a circuit board are housed in a housing.
An oscillation circuit that oscillates using the inductance component of the coil constituting the detection unit, and a switching circuit that is turned on and off according to the oscillation state of the oscillation circuit are provided. At least two or more coils can be accommodated in the facing direction, and the coil accommodating position is a distance between the centers of the coils that is equal to or greater than the diameter of the pachinko ball to be detected and is not an integral multiple of the diameter of the pachinko ball. The gist is that the two or more coils are connected to the oscillation circuit so as to be independent inductance components.

In the case where the oscillation circuit is constituted by using a capacitor, the housing is capable of accommodating a plurality of sets of each of a pair of electrodes forming the capacitor at positions straddling the path of the pachinko ball. The distance between the centers of adjacent capacitors is not less than the diameter of the pachinko ball to be detected and is not an integral multiple of the diameter of the pachinko ball, and the plurality of sets of capacitors are mutually separated with respect to the oscillation circuit. A structure in which the components are connected so as to be independent capacitance components can be provided.

[0010] The housing of the coil or capacitor may be such that the coil or capacitor is completely housed in the housing, or a form in which a part of the coil or capacitor is housed. Further, the coil or the capacitor may be fixed directly to the circuit board by a method such as soldering, or may be provided separately from the circuit board.

[0011]

In the pachinko ball detection device of the present invention configured as described above, when there is no pachinko ball, the oscillation circuit oscillates using the inductance component of the coil serving as the detection unit housed in the housing. On the other hand, when the pachinko ball approaches the coil and the magnetic flux formed by the coil crosses the pachinko ball, oscillation energy is lost mainly due to eddy current loss, the oscillation state of the oscillation circuit changes, and normal oscillation stops. I do. The switching circuit is turned on / off according to the oscillation state of the oscillation circuit, and outputs a signal to the outside according to the presence or absence of the pachinko ball.

At this time, if there are a plurality of coils as the detecting section, the distance between the axial centers of these coils is not less than the diameter of the pachinko ball to be detected and not an integral multiple of the diameter of the pachinko ball. Therefore, when the pachinko balls are in contact with the adjacent pachinko balls, all the coils do not hit the position between the pachinko balls at the same time. In addition, the plurality of coils are connected to the oscillation circuit so as to have mutually independent inductance components. Accordingly, energy loss occurs in at least one of the coils, and the oscillation state of the oscillation circuit changes without fail. In the case of one coil, a pulse signal is output with good responsiveness each time a pachinko ball passes.

In order to change the oscillation state of the oscillation circuit, an electrode for forming a capacitor is provided at a position straddling the path of the pachinko ball, instead of consuming oscillating energy due to eddy current loss based on the presence or absence of the pachinko ball. This is also achieved by a configuration in which a pachinko ball passes between them.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to further clarify the structure and operation of the present invention described above, a preferred embodiment of the pachinko ball detecting device of the present invention will be described below. FIG. 1 is a sectional view showing the structure of a pachinko ball detection device as an embodiment, FIG. 2 is the same circuit, and FIG. 3 is a schematic configuration diagram of a pachinko machine on which the pachinko ball detection device is provided.

First, the configuration of the pachinko machine will be described. As shown in FIG. 3, the pachinko machine includes a machine frame 1, a front frame 3 openably and closably mounted on the front surface of the machine frame 1, and a game board 5 detachably mounted on the back surface of the front frame 3. It is configured at the center. On the back surface of the game board 5, a mechanism plate 7 on which various mechanisms are mounted is rotatably mounted.
A prize ball tank 10 for storing pachinko balls fed from a pachinko ball feeding device (not shown) is fixed to an upper portion of the back surface of the game machine. Below the prize ball tank 10, a lead-out gutter 1 for guiding pachinko balls serving as prize balls in two rows in a row.
2, a pachinko ball delivery device 20 is attached to the lower end thereof. Further, a ball firing device 14 is attached to a lower portion of the front frame 3.

In the middle of the outlet gutter 12, a delivery device 20 is provided.
Ball interlock switch 1 that detects when a sufficient number of pachinko balls are not accumulated for the operation of
5 are provided. In addition, at the end of the outlet gutter 12 and immediately before the delivery device 20, a ball jam interlock switch 17 for detecting a ball jam or the like in the outlet gutter 12 and a ball confirmation switch 18 which is an embodiment of the pachinko ball detector are provided. Is provided. Further, a prize ball confirmation switch 19 according to another embodiment of the present invention is provided directly below the pachinko ball discharge side of the delivery device 20. Only when the interlock switch 17 is off and the ball confirmation switch is on, the delivery device 20 sends out the premium ball while confirming the pachinko ball to be delivered by the premium ball confirmation switch 19.

The ball supply interlock switch 1
5, two interlock switches 17, a ball confirmation switch 18, and a prize ball confirmation switch 19 are provided for each of the two rows of lead-out gutters 12; In the description, only one is shown.
The configuration and operation of the ball confirmation switch 18 and the prize ball confirmation switch 19 will be described later in detail together with the configuration and operation of the delivery mechanism 20.

The delivery of the prize ball by the delivery device 20 is performed in accordance with the winning ball. The winning ball is detected by a detector 24 provided on the winning ball deriving path 23. The winning balls are classified into three according to the type of the winning item and the like, and three sets of detectors 24 are provided. In the sense of a signal to start sending pachinko balls,
This is connected to the first, second and third start switches (24a,
b, c). One of these start switches, for example, the third start switch 24c may be used as an operation switch of a ball lending machine or the like provided adjacent to the pachinko machine. In this case, the ball lending machine lends a predetermined number of pachinko balls in response to a signal from the third start switch 24c.

Below the delivery device 20, a discharge gutter 26 for guiding the pachinko balls counted and released by the delivery device 20 to an upper plate and a lower plate provided on the front surface of the front frame 3.
Is provided. In the vicinity of the connection between the discharge gutter 26 and the upper and lower plates, an upper and lower plate interlock switch 2 for detecting that the upper and lower plates are full of pachinko balls.
7 are provided.

Next, the configuration of the delivery device 20 will be described. As shown in FIGS. 4 and 5, the delivery device 20 has a hollow rectangular cylindrical case 29 that is opened up and down, and is provided at a position corresponding to the lower end of the outlet gutter 12 inside the case 29.
A row of ball passages 31 and 32 are provided. A horizontal shaft 35 having both ends supported by the wall surface of the case 29 is provided inside the case 29.
Provided on the horizontal axis 35 are two ball cutting disks 41, 4
2 is integrally and rotatably supported by the connecting cylinder portion 43 with respect to the horizontal shaft 35.

Each of the ball cutting disks 41 and 42 has two sprockets 44 having semicircular notches Pa at 13 positions on the outer periphery.
And a bracket 45 to which the sprocket 44 is fixed on both sides. The balls 41, 42
The outer periphery is provided at a position facing the inside of the ball passages 31, 32, as shown in FIG. Also, sprocket 4
Since the diameter of the notch Pa provided on the outer periphery of 4 is almost the same as that of pachinko balls, when the ball cutting disks 41 and 42 rotate, the pachinko balls B in the ball passages 31 and 32 become one by one.
It will be sent to the discharge gutter 26. In addition, the ball-cutting disks 41 and 42 are exactly ピ ッ チ of the pitch of the notch Pa.
The pachinko balls are sent out alternately by being fixed to each other at rotational positions shifted only by them.

A worm gear 46 is fixed to the outer periphery of the connecting cylinder 43 connecting the two sets of ball cutting disks 41 and 42. A worm 47 for driving the worm gear 46 is meshed with the worm gear 46. One end of the shaft 49 to which the worm 47 is attached is rotatably supported by the outer wall of the case 29, and the other end is fixed to the rotating shaft 51 of the stepping motor 50. The stepping motor 50 is
The case 29 is fixed to the outer wall. When the stepping motor 50 rotates, the worm gear 46 rotates through the rotation of the worm 47 directly connected to the rotation shaft 51, and the ball cutting disks 41 and 42 also rotate. In order to detect the rotation state of the ball cutting disks 41 and 42, a transmission type photodetector 55 using infrared light is provided at a position sandwiching one sprocket 44 of the ball cutting disk 42. The transmission type photodetector 55 sends out a pulse signal from the notch Pa of the sprocket 44 every time light is transmitted or cut off, that is, every time one pachinko ball is sent out.

The positional relationship between the delivery device 20, the ball confirmation switch 18, and the premium ball confirmation switch 19 will be described. As shown in FIG. 5, the ball confirmation switch 18 is a ball passage 31 of the ball delivery device 20. , 32, and the premium ball confirmation switch 19 is provided immediately below.

Next, an electronic control unit 60 for controlling the entire pachinko machine will be briefly described with reference to FIG. The electronic control unit 60 is mainly composed of a one-chip microcomputer (hereinafter, referred to as an MPU) 61 having a well-known arithmetic logic unit, ROM, RAM and the like. The electronic control unit 60 takes in signals from the various switches described above and the touch detection switch 63 provided on the handle 62, and outputs the ball firing device 14, the ball sending device 2
0 or a display element group 65 such as a winning display lamp is controlled.

Various switches are connected to input ports PA to PB of the MPU 61, and the ball launching device 14 and the like are connected to output ports PC to PE. MPU61
Although an interface circuit corresponding to a device to be connected is provided between the switch and these switches and an external device, their illustration and description are omitted here.

Ball confirmation switch 18 according to an embodiment of the present invention
And the structure of the premium ball confirmation switch 19 and the electronic control unit 6
The connection with 0 and the principle of pachinko ball detection will be described. As shown in FIG. 1, the ball confirmation switch 18 and the prize ball confirmation switch 19 are provided with a housing 71 having a U-shaped cross section.
And a substrate 73 is provided therein. One end of the substrate 73 protrudes out of the housing 71 and has connection terminals 75.
It is used as Electronic components such as the transistor shown in FIG. 2 are assembled on the substrate 73.

As shown in FIG. 1, coils L1 and L2 are
"It is stored in the protruding storage portions 81 and 82 of the U-shaped casing 71. The distance between the centers of the storage portions 81 and 82, that is, the distance between the centers of the coils L1 and L2 is exactly 1 of the diameter of the pachinko ball B. .5 times the distance.

The ball confirmation switch 18 and the prize ball confirmation switch 19 include two balls L1 and L
2 and the prize ball confirmation switch 19 is a single coil L1.
Except for having the same circuit configuration,
Hereinafter, the ball confirmation switch 18 will be described as an example. As shown in FIG. 2, the ball confirmation switch 18 has a power supply terminal T1 to which 12 volts are supplied and an input port PB of the MPU 61.
1 is connected to the detection terminal T2. This detection terminal T2 also serves as the ground level of the circuit, and is grounded via the resistor RD on the electronic control unit 60 side. The ball confirmation switch 18 includes a high-frequency oscillation circuit CO and a switching circuit SW that is turned on / off based on the oscillation state of the high-frequency oscillation circuit CO.

The switching circuit SW has a power terminal T1
From the detection terminal T
2 is grounded by the resistor RD (the resistance value is 680Ω in this embodiment), the power supply voltage of the switching circuit SW changes depending on the on / off state of the transistor Tr2 of the switching circuit SW. On the other hand, the high-frequency oscillation circuit CO has a resistor R1 (in this embodiment, a resistance value of 27 KΩ) interposed between the power supply terminal T1 and the detection terminal T2 and a Zener voltage V stabilized by a Zener diode D1.
z (approximately 5.5 volts in this embodiment).

The high-frequency oscillation circuit CO includes a double transistor Tr1 in which two transistors having the same characteristics are formed in the same chip, and a resistor R3 interposed between both emitters of the double transistor Tr1 and the ground line. , Capacitors C1, C2 and coils L1, L2 constitute a Colpitts-type high-frequency oscillation circuit. The base of the double transistor Tr1 is connected to a power supply line via a resistor R2. The oscillation frequency of the high-frequency oscillation circuit CO is determined by the inductance of the coils L1 and L2 and the capacitance of the capacitors C1 and C2, and is approximately 300 K [Hz] in the present embodiment.

One of the collectors of the double transistor Tr1 is not used, but the other is connected to the base terminal of the transistor Tr2 of the switching circuit SW. A capacitor C3 is connected between the base terminal of the transistor Tr2 and the ground line, and a resistor R4 (220Ω in this embodiment) is connected to the emitter terminal. The collector terminal of the transistor Tr2 is
Connected to power line. In a state where the high-frequency oscillation circuit CO is oscillating, the double transistor Tr1 is about 300
On / off is repeated at K [Hz], and when the double transistor Tr1 is on, the collector current flows from the base of the transistor Tr2 of the switching circuit SW to turn on the transistor Tr2. on the other hand,
Due to the oscillation of the high-frequency oscillation circuit CO, the double transistor Tr1
Is turned off for a short period of time, the base current of the transistor Tr2 is continued by charging and discharging of the capacitor C3, and the transistor Tr2 is kept on.

When the pachinko ball B approaches the coil L1 or the coil L2 while the high-frequency oscillation circuit CO is oscillating, the magnetic flux of the coils L1 and L2 passes through the pachinko ball B, and the vortex in the pachinko ball B This causes current loss. The pachinko ball B is usually made of metal. However, even when the pachinko ball is made of a material other than metal and has a plated surface, a thin film of plating or the like has a considerably large eddy current loss due to a small cross-sectional area. Since the eddy current loss consumes the oscillation energy of the high-frequency oscillation circuit CO, the high-frequency oscillation remarkably attenuates and almost stops. Coil L
1 and L2 are the same, so that the same applies regardless of which coil the pachinko ball approaches.

When the pachinko ball B is not approaching any of the coils L1 and L2, the transistor Tr2 is in an on state. On the other hand, when the oscillation of the high frequency oscillation circuit CO is almost stopped, the switching circuit SW is turned off. Transistor Tr2 is turned off. Since the resistance value of the resistor R4 is smaller than that of the resistor R1 (in this embodiment, 220Ω:
27KΩ), when the transistor Tr2 is turned on,
The current flowing from the power supply terminal T1 to the Zener diode D1 via the transistor Tr and the resistor R4 is
(About 130 times). Since this current finally flows to the ground side via the resistor RD in the electronic control unit 60 connected to the detection terminal T2, the voltage across the resistor RD, that is, the MPU 61
Of the input port PB1 is about 0.2 volts when the transistor Tr2 is off and about 4.9 volts when the transistor Tr2 is on. Therefore, by monitoring the state of the input port PB1, the MPU 61 can easily know the state where the ball confirmation switch 18 is detecting the pachinko ball B (low level) and the state where it is not detected (high level).

When the transistor Tr2 is turned on and the current flowing through the Zener diode D1 increases, the Zener voltage Vz increases to some extent depending on the characteristics of the Zener diode D1. Therefore, the base potential of the dual transistor Tr1 of the high-frequency oscillation circuit CO increases, and the oscillation conditions of the high-frequency oscillation circuit CO are strengthened. On the other hand, if the twin transistor Tr1 is turned off, the Zener voltage Vz
Therefore, the oscillation condition becomes worse, and the oscillation is easily stopped. That is, in the circuit of the present embodiment, when the Zener voltage characteristic of the Zener diode is poor (when the Zener voltage when the current increases becomes higher than a certain level), positive oscillation is applied to the oscillation condition of the high-frequency oscillation circuit CO,
The switching characteristics of the switching circuit SW when the pachinko balls approach and leave the coils L1 and L2 are improved. Note that a Zener diode D having excellent Zener characteristics is used.
When 1 is used, as shown in FIG. 7, the collector of the transistor Tr2 is connected to the ground line via the resistor R5, and is also fed back to the base of the double transistor Tr1 via the resistor R6. The effect of can be obtained.

The coils L1 and L of the ball confirmation switch 18
2, the center distance DL is 1.5 times the diameter of the pachinko ball B as shown in FIG. Therefore, when the center of the pachinko ball B is located at the center of the coil L1 (maximum magnetic flux density), the center of the coil L2 is located substantially corresponding to the contact point of the adjacent pachinko balls. In other words, as the center of the coil L1 deviates from the center of the pachinko ball, the center of the pachinko ball approaches the center of the coil L2. Therefore, if the pachinko balls are adjacent to each other, even if the entire pachinko balls are moving, eddy current loss occurs due to one of the magnetic fluxes of the coils L1 and L2, and the oscillation of the high-frequency oscillation circuit CO is constantly performed. It is almost stopped, and the transistor Tr of the switching circuit SW
2 is turned off, and the input port PB1 of the MPU 61 is turned off.
Becomes low level. This operation principle is the same when three or more coils are used.

On the other hand, since the coil L2 does not exist in the prize ball confirmation switch 19, the oscillation of the high-frequency oscillation circuit CO is interrupted every time the pachinko ball B passes, and the pachinko ball continues to be very close. , The detection terminal T2 goes low for a short time in accordance with the passage of each pachinko ball B. Therefore, the MPU of the electronic control unit 60
By monitoring the level of the input port PB2, the 61 can individually detect the passage of a prize ball and count it.

FIG. 8 is a flowchart schematically showing a process executed by the electronic control unit 60 when a winning ball is detected by the start switch 24. The number N of prize balls to be paid out is set according to the start signal (step S10).
0), when the conditions for paying out are satisfied without occurrence of clogging or the like (step S110), the delivery device 2
The process proceeds to the process of transmitting a pulse signal to 0 (step S120 and subsequent steps). In the payout process, it is determined whether or not the ball confirmation switch 18 detects a pachinko ball (step S120).
A pulse signal is sent to 0 to start paying out the pachinko ball B (step S130). Each time a pulse signal is output, the value 1 is subtracted from the number N of prize balls (step S140),
Steps 120 to 140 described above until N becomes 0
Is repeated (step S150). When the number of unpaid premium balls N has become zero (step S15
0), end this routine.

On the other hand, if the payout condition is not satisfied, or if the ball confirmation switch 18 cannot detect a pachinko ball (steps S110 and S120), it is determined whether the state has continued for a predetermined time (step S160). . The confirmation is repeated until the predetermined time elapses, and after the predetermined time elapses, error processing is performed (step S170), and this routine ends.

The pachinko balls paid out from the delivery device 20 are detected by the premium ball confirmation switch 19,
It is easy to count the number of the pachinko balls by another interrupt routine (not shown) and monitor whether or not the number matches the set value N. If the number of pachinko balls paid out differs from the number actually paid out due to a failure of the delivery device 20 or the like, error processing is performed as a failure.

As described above, the configuration of the pachinko machine and the function thereof have been described. The ball confirmation switch 18 and the prize ball confirmation switch 19, which are embodiments of the pachinko ball detection device, reliably detect pachinko balls in a non-contact manner. Can be. Moreover, in the ball confirmation switch 18, when the pachinko balls move while maintaining a distance of contact with each other, the center-to-center distance between the coil L1 and the coil L2 is about 1.5 times the diameter of the pachinko balls. By detecting this, a continuous signal can be output. Therefore, there is no need to perform another process on the detection signal as in the related art. In addition, a type that outputs a pulse signal for each pachinko ball and a type that outputs a continuous signal for continuous pachinko balls are realized with the same configuration except for the coil L2. The components can be shared.

The embodiments of the present invention have been described above.
The present invention is not limited to such an embodiment. For example, the configuration used in a device for counting and paying out the number of pachinko balls, such as a pachinko ball lending device, and a coil for detection of 3
The configuration provided above, the detection unit arranges a plurality of pachinko ball detection devices, connects the output thereof to a multi-input NAND gate, and detects even if one of the cascaded pachinko balls is missing. Instead, a configuration in which the electrode of the capacitor C1 is provided so as to straddle the path of the pachinko ball, the coil L
1 and intervals distance than 1.5 times the diameter of the pachinko balls to the L2, 1, for example. Obviously, the present invention can be implemented in various modes without departing from the gist of the present invention, such as a configuration having a distance other than an integral multiple such as three times. The present invention has been made by paying attention to the fact that a magnetic flux formed by a coil generates an eddy current in a metal object and consumes oscillation energy of an oscillation circuit. The metal object to be detected is other than a pachinko ball. For example, metal or coins may be used.

[0042]

As described above, in the pachinko ball detecting apparatus of the present invention, the detection of a pachinko ball moving in a state in which it is connected to the detection of each pachinko ball is performed by a detecting unit such as an electrode of a coil or a capacitor. Others can be performed with a common configuration only by changing the number, and the number of parts can be reduced. In particular, when a plurality of detection units are used, the distance is set to a distance other than an integer multiple of the diameter of the pachinko ball. This can be detected as a signal. Therefore, it is not necessary to perform a predetermined conversion process one by one, and it is possible to greatly reduce the trouble in use.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a ball confirmation switch as one embodiment of a pachinko ball detection device of the present invention.

FIG. 2 is a circuit diagram of the same.

FIG. 3 is a schematic configuration diagram of a pachinko machine to which a ball confirmation switch and the like of the present embodiment are attached.

FIG. 4 is a perspective view showing the structure of the delivery device 20.

FIG. 5 is a sectional view of the same.

FIG. 6 is a block diagram illustrating a configuration of an electronic control device 60 that controls the entire pachinko machine.

FIG. 7 is a circuit diagram showing another configuration example of the present invention.

FIG. 8 is a flowchart illustrating an example of a process executed by the electronic control device 60;

FIG. 9 is an explanatory diagram showing a state of conventional pachinko ball detection.

[Explanation of symbols]

 Reference Signs List 10 premium ball tank 12 lead-out gutter 18 ball confirmation switch 19 premium ball confirmation switch 20 sending-out device 60 electronic control device 61 MPU 71 housing 73 substrate 75 connection terminal CO high frequency oscillation circuit L1, L2 coil SW switching circuit Tr1 double transistor

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A63F 7/02 304 A63F 7/02 324

Claims (2)

(57) [Claims] 1. A pachinko ball detection device in which a pachinko ball detection unit and a circuit board are housed in a housing, wherein the circuit board has an oscillation that oscillates using an inductance component of a coil constituting the detection unit. A circuit and a switching circuit that is turned on and off in accordance with the oscillation state of the oscillation circuit, wherein the housing is capable of housing at least two or more coils in a direction in which one end of the coil faces the pachinko ball path. the storage position of the coil, between the axial center of the coil, detects Pachi
A pachinko ball detection device, wherein the distance is not less than the diameter of the ball and not an integral multiple of the diameter of the pachinko ball, and the two or more coils are connected to the oscillation circuit so as to have independent inductance components. 2. A pachinko ball detection device in which a pachinko ball detection unit and a circuit board are housed in a housing, wherein the circuit board includes an oscillation circuit that oscillates using a capacitance component of a capacitor, ON depending on the circuit oscillation status
A switching circuit that is turned off, wherein the housing is capable of storing a plurality of sets of electrodes each forming a capacitor having the capacitance component at a position straddling the path of the pachinko ball, and setting the capacitor storage position , between the centers of adjacent capacitor, the pachinko ball detecting linear
A pachinko ball detection device comprising a plurality of capacitors connected to the oscillation circuit so as to have independent capacitance components with respect to the oscillation circuit, the distance being not less than the diameter and not being an integral multiple of the diameter of the pachinko ball.