JP2010213882A - Game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a game machine for detecting a fraudulent act by a magnet in almost all game areas without lowering visibility of the game area. <P>SOLUTION: The game machine 1 includes: a game board 20 having an almost circular game area 21 where game balls are shot; a frame member 3 which is placed on the front surface side of the game board 20 and has a window part 5 through which the game area 21 is visible; a transparent plate unit 4 attachable/removable to and from the window part 5; a coil 12 which is provided at transparent plate unit 4 and wound around the periphery of the game area 21; and a fraudulence detection part 53 for detecting the fraudulent act on the basis of induced electromotive force generated in the coil 12. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a gaming machine such as a pachinko gaming machine that launches a game ball on a game board surface.

  A gaming machine such as a pachinko gaming machine, when game balls launched into the game area of the game board are bounced off by a number of nails, etc., flow down the game area and enter the various winning holes, a predetermined number of prize balls Pay out. In such a gaming machine, an illegal act using a magnet may be performed. That is, by moving the magnet in a state where the magnet is close to the game board surface, the game ball is illegally guided to the winning opening.

  Conventionally, in this type of gaming machine, as one of the techniques for detecting fraud by a magnet, for example, a reed switch type magnetic sensor in which a reed switch is closed when a magnet approaches, a frame member positioned on the front side of the gaming machine The technique of arrange | positioning between these two glass plates is proposed (patent document 1). In this technique, a plurality of reed switch type magnetic sensors are arranged on a flat plate member or a card member, and are inserted between two glass plates.

JP 2005-137877 A

  However, in the case of the above prior art, when the magnetic detection area is enlarged, a flat plate member or a card-like member is arranged in a form covering a part of the game area visually recognized by the player. There is a problem of lowering. In particular, if the entire game area is to be a magnetic detection area, it is necessary to dispose a flat plate member of approximately the same size as the glass plate between the two glass plates, which significantly reduces the visibility of the game area. Become.

  Further, the glass plate located on the front side of the game area is often hit by the player. The frame member holding the glass plate is opened and closed many times by the store clerk. Therefore, if the reed switch type magnetic sensor is placed between the two glass plates, the impact caused by the player hitting the glass plate or the impact caused by the opening / closing operation of the frame member by the store clerk can easily act on the reed switch type magnetic sensor. Or cause damage.

  Therefore, the present invention has been made for the purpose of solving the above-described problems, and can detect an illegal act by a magnet in almost the entire game area without reducing the visibility of the game area. It provides a gaming machine.

  In order to achieve the above object, the invention according to claim 1 is a gaming machine, comprising a gaming board having a substantially circular gaming area on which a gaming ball is launched, and a front side of the gaming board, wherein the gaming area A frame member having a window part that can be visually recognized, a transparent plate unit that can be attached to and detached from the window part, a coil that is provided on the transparent plate unit and is wound around the periphery of the game area, and the coil And fraud detection means for detecting fraud based on the induced electromotive force generated in the circuit.

  According to a second aspect of the present invention, in the gaming machine according to the first aspect, the transparent plate unit is arranged in parallel with the first transparent plate and the first transparent plate at a predetermined interval. The coil is provided between the first transparent plate and the second transparent plate.

  According to a third aspect of the present invention, in the gaming machine according to the second aspect, the transparent plate unit includes a holding portion that holds a peripheral portion of the first transparent plate and the second transparent plate, and the coil includes: It is provided along the holding part.

  The invention according to claim 4 is the gaming machine according to any one of claims 1 to 3, further comprising self-diagnosis means for detecting disconnection of the coil.

  According to the gaming machine according to the present invention, it is possible to satisfactorily detect fraudulent acts caused by magnets in almost the entire gaming area without reducing the visibility of the gaming area.

It is a perspective view which shows the external appearance structure of the game machine which is one Embodiment of this invention. It is a figure which shows an example of the game board provided in a game machine main body. It is a figure which shows the state which open | released the frame member of the gaming machine. It is a figure which shows the state which removed the transparent plate unit from the frame member. It is a perspective view of the state where a part of transparent plate unit was cut. It is a partial expanded sectional view which shows the example of arrangement | positioning of the coil in a transparent plate unit. It is a figure which expands and shows the part of the connector in a transparent plate unit. It is a figure which shows the form by which the connector of a coil is connected by mounting | wearing a frame member with a transparent plate unit. It is the figure which looked at the gaming machine from the front. It is a block diagram which shows the control mechanism of a gaming machine. It is a figure which shows the concept of the signal processing when the fraudulent act by a magnet is performed. It is a figure which shows the example of 1 structure of the self-diagnosis circuit which detects the disconnection of a coil.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In the embodiments described below, members that are common to each other are denoted by the same reference numerals, and duplicate descriptions thereof are omitted.

  FIG. 1 is a perspective view showing an external configuration of a gaming machine 1 in the present embodiment. A gaming machine 1 according to the present embodiment includes a gaming machine main body 2 fixed to an island facility of a hall (store) and a frame member 3 provided on the front side of the gaming machine main body 2. The frame member 3 is pivotally supported by a support portion 2a provided at the left end portion of the gaming machine body 2 so as to be openable and closable around a predetermined vertical axis. In addition, the frame member 3 has a window portion 5 in which a transparent plate unit 4 for enabling visual recognition of the game board 20 provided in the gaming machine main body 2 is fitted at the center thereof.

  Here, first, an example of the gaming board 20 provided in the gaming machine main body 2 of the gaming machine 1 will be described. FIG. 2 is a front view showing an example of the game board 20. As shown in FIG. 2, the game board 20 has a substantially circular game area 21 surrounded by an outer rail 22 and an inner rail 23. The game ball is launched into the game area 21 from the gap between the outer rail 22 and the inner rail 23 provided on the left side of the game area 21. An image display 25 is provided inside the game area 21 so as to be positioned substantially at the center of the game board 20, and various board lamps and movable accessories for production are provided at the periphery of the image display 25. A center accessory 24 equipped with the above is provided. The image display 25 is composed of a liquid crystal display or the like, and is used to display various effect images for effects, a notification image for the player, and the like. In addition, the game area 21 includes known members such as a number of nails, through gates, windmills, various winning openings, and out openings around the center role 24. Therefore, the game ball launched into the game area 21 rolls while changing the course by many nails and windmills, passes through the through gate, enters the various winning holes, or discharges from the out port. Is done. In the case of the illustrated example, below the image display 25, there are a start opening 26 and an electric tulip 27 in which a big hit lottery is performed by entering a game ball, and a big winning opening 28 that opens and closes a predetermined number of times when the big win lottery is won Is arranged. In addition, an out-port 29 is provided at the bottom of the game area 21 for discharging a game ball that has not won any win.

  In addition, a display 30 for displaying a special symbol corresponding to the jackpot lottery result or displaying the number of held balls entered in the start opening 26 on the lower right side of the game board 20 outside the game area 21. Is provided.

  When the player plays a game, substantially the entire game area 21 of the game board 20 as described above can be visually recognized through the transparent plate unit 4 fitted in the frame member 3.

  Moreover, as shown in FIG. 1, the lower part of the frame member 3 becomes the bulging part 6 bulging to the front side. A handle lever 7 operated by the player is provided on the right side of the bulging portion 6. When the player rotates the handle lever 7 in the clockwise direction, the game ball is launched into the game area 21 of the game board 20 at a predetermined time interval with a hitting force corresponding to the operation angle. In addition, on the upper part of the bulging part 6, a ball receiving part 8 that receives a prize ball paid out from the gaming machine 1 and various effect buttons 9 that are operated by the player to enjoy the effect are provided. The frame member 3 includes a frame lamp 10 for various effects along the periphery of the window portion 5. Further, the frame member 3 includes a pair of left and right speakers 11 at the top thereof.

  FIG. 3 is a view showing a state in which the frame member 3 of the gaming machine 1 is opened. When the player plays a game, the frame member 3 is closed and locked by the gaming machine main body 2 as shown in FIG. 1, whereas a ball jam or the like occurs in the game area 21 during the game. Then, the store clerk unlocks the frame member 3 and opens the frame member 3 as shown in FIG.

  As shown in FIG. 3, the frame member 3 is provided with locking members 13 for fixing the transparent plate unit 4 at a plurality of peripheral edge portions of the window portion 5. These engaging members 13 fix the transparent plate unit 4 to the frame member 3 by engaging with the peripheral edge portion of the transparent plate unit 4 fitted into the window portion 5 from the back side of the frame member 3. Therefore, even if the opening / closing operation of the frame member 3 is repeatedly performed, the transparent plate unit 4 does not fall off the frame member 3. As will be described later, the transparent plate unit 4 is provided with a coil 12 for detecting fraud caused by a magnet. The coil 12 is electrically connected to the frame member 3 at the lower right portion of the transparent plate unit 4. For this purpose, a connector 14 is provided.

  FIG. 4 is a diagram illustrating a state where the transparent plate unit 4 is detached from the frame member 3. When removing the transparent plate unit 4 attached to the window 5, for example, as shown in FIG. 4, the locking member 13 is rotated in the R direction so that the engagement state between the locking member 13 and the transparent plate unit 4 is changed. To release. Then, the transparent plate unit 4 can be removed on the back side of the frame member 3. Conversely, when the transparent plate unit 4 is attached to the frame member 3, the transparent plate unit 4 is fitted into the window portion 5 from the back side of the frame member 3, and the locking member 13 is placed in a direction opposite to the R direction shown in FIG. The transparent plate unit 4 can be fixed by rotating and engaging the locking member 13 with the transparent plate unit 4. When the transparent plate unit 4 is fixed to the frame member 3, the connector 14 of the transparent plate unit 4 is connected to the connector 15 provided at the lower right side of the back side of the frame member 3. explain in detail.

  As shown in FIG. 4, the transparent plate unit 4 includes a transparent plate 40 made of a transparent glass plate and the like, and a holding portion 43 provided along the peripheral edge of the transparent plate 40. The holding portion 43 holds the transparent plate 40, and a flange portion 44 that engages with the locking member 13 of the frame member 3 is provided at a predetermined position on the left and right of the upper portion, and the connector 14 is provided at a predetermined position on the right side of the lower portion. Is provided.

  FIG. 5 is a perspective view of a state in which a part of the transparent plate unit 4 is cut in order to explain the detailed configuration of the transparent plate unit 4. As shown in FIG. 5, the transparent plate unit 4 includes two transparent plates 41 and 42 as the transparent plate 40, and these transparent plates 41 and 42 are parallel to each other by a holding portion 43 with a predetermined interval therebetween. Is retained. Among these, the 1st transparent plate 41 is a transparent plate located in the player side during a game. The second transparent plate 42 is a transparent plate located on the game board 20 side during the game.

  Further, as shown by a broken line in FIG. 5, the transparent plate unit 4 is provided with a coil 12. The coil 12 is provided between the first transparent plate 41 and the second transparent plate 42 and is disposed in a state of being wound a predetermined number of times along a holding portion 43 that holds the transparent plate 40. The coil 12 detects magnetism in the vicinity of the front of the game board 20. Since the coil 12 does not have a movable part (open / close switch) like a conventional reed switch type magnetic sensor, even if an impact or the like acts, the possibility of breakage is lower than in the past.

  FIG. 6 is a partial enlarged cross-sectional view illustrating an arrangement example of the coils 12 in the transparent plate unit 4. The holding portion 43 that holds the peripheral portions of the first transparent plate 41 and the second transparent plate 42 holds the gap between the first transparent plate 41 and the second transparent plate 42 at a predetermined interval. It has a spacer portion 43 a located between the second transparent plates 42.

  In the arrangement example of FIG. 6A, a concave groove 45 is formed on the surface of the spacer portion 43 a of the holding portion 43 facing the second transparent plate 42, and the coil 12 is arranged in the concave groove 45. Since the concave groove 45 is an annular groove formed along the periphery of the transparent plates 41, 42, by winding the coil 12 along the concave groove 45, a substantially entire region of the transparent plates 41, 42 is obtained. It can be stored inside the coil 12. Then, as shown in FIG. 6 (a), by providing the concave groove 45 on the surface of the spacer portion 43a facing the second transparent plate 42, a gaming state in which the transparent plate unit 4 is mounted on the frame member 3 (see FIG. 1). In the state shown), it can be arranged so that the player can not visually recognize the coil 12. In the arrangement example shown in FIG. 6A, the coil 12 is provided between the first transparent plate 41 and the second transparent plate 42, and is thus protected by the transparent plates 41 and 42. Therefore, for example, the coil 12 can be prevented from being cut by a malicious player or the like. 6A illustrates the case where the concave groove 45 is formed on the surface of the spacer portion 43a facing the second transparent plate 42, the surface on the opposite side, that is, the first transparent plate. The groove 12 may be formed in the surface facing 41, and the coil 12 may be arranged there.

  Further, in the arrangement example of FIG. 6B, the coil 12 is arranged along the distal end portion of the spacer portion 43 a of the holding portion 43. Since the holding portion 43 is an annular member that holds the peripheral portions of the transparent plates 41 and 42, the coil 12 is wound along the distal end portion of the spacer portion 43 a, so that the substantially entire region of the transparent plates 41 and 41 is coiled. 12 can be stored inside. And the coil 12 can be arrange | positioned, without reducing the visibility of the game area | region 21 by fixing the coil 12 to the front-end | tip part of the spacer part 43a with an adhesive agent. Also in the arrangement example shown in FIG. 6B, the coil 12 is provided between the first transparent plate 41 and the second transparent plate 42 and is thus protected by the transparent plates 41 and 42. Therefore, for example, the coil 12 can be prevented from being cut by a malicious player or the like.

  Next, FIG. 7 is an enlarged view showing the connector 14 in the transparent plate unit 4. The connector 14 includes two terminals 17 and 17 connected to the coil 12 as shown in FIG. 7A when viewed from the side corresponding to the front side of the gaming machine 1. FIG.7 (b) is sectional drawing at the time of cut | disconnecting by the AA line in Fig.7 (a). In this embodiment, for example, as shown in FIG. 7B, the holding portion 43 and the connector 14 are integrally formed. The coil 12 provided in the spacer portion 43 a of the holding portion 43 is connected to the terminal 17 of the connector 14 by a conducting wire 19 wired inside the holding portion 43. Thereby, it can prevent that the conducting wire 19 which connects the coil 12 and the terminal 17 of the connector 14 is cut | disconnected intentionally.

  Since such a connector 14 is provided at a predetermined location of the holding portion 43 so as to correspond to the position of the connector 15 provided on the back side of the frame member 3, the transparent plate unit 4 is attached to the frame as shown in FIG. By fitting into the window portion 5 from the back side of the member 3, the connector 14 of the transparent plate unit 4 and the connector 15 of the frame member 3 are connected to each other. That is, when attaching the transparent plate unit 4 to the frame member 3, it is not necessary to separately perform an operation for connecting the connectors 14 and 15. Therefore, the coil 12 provided in the transparent plate unit 4 can be reliably connected, and the mounting operation and the replacement operation of the transparent plate unit 4 can be performed efficiently.

  When the transparent plate unit 4 is attached to the frame member 3 as described above, a player who is playing the game cannot directly touch the coil 12. Further, for example, even when a ball jam occurs during the game and the store clerk opens the frame member 3, it is possible to prevent the player from touching the coil 12 directly.

  FIG. 9 is a view of the gaming machine 1 according to the present embodiment as viewed from the front. In the state shown in FIG. 9, the player plays the game while paying attention to the behavior of the game ball launched into the game area 21 through the window portion 5 of the frame member 3 and the display screen of the image display 25. In FIG. 9, the above-described coil 12 is arranged as indicated by a broken line in the drawing, for example. That is, the coil 12 is wound a predetermined number of times along the periphery of the game area 21, and almost the entire game area 21 is accommodated inside the coil 12. Therefore, when the player brings the magnet close to the transparent plate unit 4, the magnetic flux penetrating the coil 12 is changed by any part of the game area 21. As a result, an induced electromotive force is generated in the coil 12 in a direction to cancel the magnetic flux change. The gaming machine 1 is configured to detect an illegal act by a magnet by detecting an induced electromotive force generated in the coil 12.

  FIG. 10 is a block diagram showing the control mechanism of the gaming machine 1 and shows various control boards attached to the back side of the gaming machine 1. The gaming machine 1 includes a main control board 100 that controls main operations related to games, and a sub-control board 200 that controls each unit based on signals and commands output from the main control board 100. In the case of this embodiment, the sub control board 200 includes a payout control board 120, an effect control board 130, an image control board 140, a lamp control board 150, and the like.

  The main control board 100 detects whether or not a fraudulent act has been performed by a game control unit 50 that controls operations related to the game, a signal processing circuit 51 that processes an output signal (induced electromotive force) from the coil 12, and a magnet. A fraud detection unit 53 that performs The signal processing circuit 51 is provided with a self-diagnosis circuit 52 that automatically detects disconnection of the coil 12.

  The main control board 100 also includes a start port switch 81 for detecting that a game ball has entered the start port 26, an electric chew solenoid 82 for opening and closing the electric tulip 27, and a fact that the game ball has passed a predetermined through gate. A gate switch 83 for detecting, a normal winning port switch 84 for detecting that a game ball has entered the normal winning port, a big winning port switch 85 for detecting that a game ball has entered the main winning port 28, and a big winning port A special winning opening solenoid 86 for driving the opening / closing 28, a normal symbol display 31, a normal symbol hold indicator 32, a special symbol indicator 33, and a special symbol hold indicator 34 are connected. The normal symbol display 31, the normal symbol hold indicator 32, the special symbol indicator 33, and the special symbol hold indicator 34 are displays included in the indicator 30 provided in the lower right part of the game board 20.

  The game control unit 50 includes a CPU 101, a ROM 102, and a RAM 103. The game control unit 50 sends a winning ball command to the payout control board 120 when each of the start port switch 81, the normal winning port switch 84, and the big winning port switch 85 detects the entry of a game ball. The payout control board 120 includes a CPU 121, a ROM 122, and a RAM 123, and is configured to control a payout motor 124 provided on the back side of the game board 20. When a prize ball command is input from the main control board 100, A predetermined number of balls are paid out in accordance with the winning entrance.

  In addition, the game control unit 50 is configured to perform a big hit lottery or a normal symbol lottery. For example, when the gate switch 83 detects the passage of a game ball, a normal symbol lottery for opening and closing the electric tulip 27 is performed. . When the start switch 81 detects entry, the game control unit 50 performs a lottery lottery, starts a special symbol variation display on the special symbol display 33, and performs an effect according to the lottery result. In order to do so, a signal or command is sent to the effect control board 130. Also, when the start port switch 81 detects a ball entry, if the special symbol variation display is in progress, the special symbol variation display accompanying the ball entry is suspended and the number of suspensions is displayed on the special symbol hold indicator 34. . In addition, when the jackpot lottery is won by the game control unit 50, the game control unit 50 displays a special symbol corresponding to the winning type after the change display of the special symbol, and the sub control board 200 according to the winning type. Control each part.

  The effect control board 130 includes a CPU 131, a ROM 132, a RAM 133, and a real time clock (RTC) 134. In addition, the effect control board 130 receives a signal when the effect button 9 is operated. The production control board 130 determines specific production contents based on signals and commands from the main control board 100, and controls each of the image control board 140 and the lamp control board 150. In addition, when the player operates the effect button 9, the effect control board 130 may change the effect content accordingly. The real-time clock (RTC) 134 is a clock circuit (timer) that counts the current time in real time regardless of whether the power is turned on.

  The image control board 140 includes a CPU 141, a ROM 142, a RAM 143, and a VRAM 144. The image control board 140 displays a variation of the decorative symbols on the image display 25 based on an instruction from the effect control board 130 and is designated by the effect control board 130. The display image on the image display unit 25 is controlled, for example, by stopping the variable display with the selected pattern. The image control board 140 performs various effects such as a reach effect and a character appearing on the image display 25 based on the designation from the effect control board 130. The VRAM 144 is a memory that writes an image to be displayed on the image display 25. The CPU 141 executes various processes such as background image display processing, decorative design display processing, and character image display processing on the VRAM 144, so that a background image, decorative design image, character image, etc. are displayed on the image display 25. It can be displayed in a superimposed manner. Further, the image control board 140 generates a sound effect for production from the speaker 11.

  The lamp control board 150 includes a CPU 151, a ROM 152, and a RAM 153, and lights various lamps including the frame lamp 10 and the panel lamp 61 based on instructions from the presentation control board 130, and various movable functions for presentation. The accessory driving unit 62 for driving the object is controlled.

  The signal processing circuit 51 provided on the main control board 100 is a circuit including various circuits such as a signal amplifier, a noise removal circuit, an inverting circuit, and an A / D converter, and an induced electromotive force generated by the coil 12 is provided. Is processed and output to the fraud detector 53. However, the signal processing circuit 51 is not necessarily provided on the main control board 100. For example, if the frame member 3 is provided in the vicinity of the coil 12, the wiring from the coil 12 to the signal processing circuit 51 can be shortened as much as possible, and the noise component input to the signal processing circuit 51 can be suppressed.

  The fraud detection unit 53 is a processing unit that detects the presence or absence of fraudulent acts by a magnet based on an output signal from the signal processing circuit 51. When the fraud detection unit 53 detects a fraudulent act using a magnet, the fraud detection unit 53 outputs a signal indicating that the fraudulent act is being performed to the game control unit 50.

  FIG. 11 is a diagram illustrating a concept of signal processing when an illegal act using a magnet is performed. When moving the magnet M from the front side of the gaming machine 1 in the direction F1 approaching the transparent plate unit 4 and moving the magnet M in the direction F2 away from the transparent plate unit 4 as shown in FIG. The magnetic flux passing through the coil 12 provided in the frame member 3 increases, for example, at first, and then decreases. Therefore, the coil 12 outputs an output signal (induced electromotive force) SG1 shown in FIG. 11B as the magnet M moves in the directions F1 and F2. In addition, when the winding direction of the coil 12 is the reverse direction, the sign of the induced electromotive force is opposite to that in FIG. The signal processing circuit 51 outputs the output signal SG2 by sequentially performing signal processing in the various circuits described above on the output signal SG1 from the coil 12 as shown in FIG. The output signal SG2 is a signal corresponding to the induced electromotive force generated by the coil 12, and is output as a digital signal, for example. The fraud detector 53 can detect whether or not the gaming machine 1 is cheating with a magnet by inputting the output signal SG2. The number of turns of the coil 12 can be set as appropriate so as to have sufficient sensitivity to the approach and separation of the magnet M.

  Since the coil 12 of this embodiment is wound so as to surround the game area 21 in the frame member 3, in particular, in the direction F <b> 1 in which the magnet M approaches the transparent plate unit 4 as shown in FIG. A large induced electromotive force is generated in the coil 12 when it moves or when it moves in the away direction F2. Therefore, it is possible to satisfactorily detect an initial operation of the player who tries to bring the magnet closer to the transparent plate unit 4 in order to perform an illegal act.

  Further, if the magnet is moved in the vertical and horizontal directions with respect to the game area 21 while the magnet is close to the transparent plate unit 4, the magnetic flux penetrating the coil 12 also changes to some extent. Therefore, also in this case, an induced electromotive force is generated in the coil 12. The induced electromotive force generated at this time is a small electromotive force as compared with the case of moving in the direction F1 or F2 shown in FIG. 11A, but the signal amplification factor in the signal processing circuit 51 is set to an appropriate value in advance. It is possible to detect fraudulent behavior by adjusting to.

  As described above, the gaming machine 1 according to the present embodiment can detect the magnet 12 in the vicinity of the game area 21 by the coil 12, the signal processing circuit 51, and the fraud detection unit 53, and in particular, a game. It has high sensitivity to the movement of the magnet approaching the area 21 and the movement of the magnet moving away from the game area 21.

  Next, FIG. 12 is a diagram illustrating a configuration example of the self-diagnosis circuit 52. The self-diagnosis circuit 52 is inserted, for example, at a position before the signal processing circuit 51 inputs the output signal SG1 from the coil 12. The self-diagnosis circuit 52 includes a current source 52a connected to one end of the coil 12, a current detection unit 52b connected to the other end of the coil 12, and a disconnection of the coil 12 based on the detection result of the current detection unit 52b. And an abnormality detection unit 52c that detects the disconnection of the coil 12 when the abnormality detection unit 52c detects the disconnection of the coil 12. The current source 52 a generates a weak constant current and causes the constant current to flow to one end of the coil 12. When the coil 12 is not disconnected, the current detector 52b detects a constant current generated by the current source 52a. On the other hand, when the coil 12 is disconnected, the current detector 52b does not detect a constant current generated by the current source 52a. The abnormality detection unit 52c determines the disconnection of the coil 12 based on the current value detected by the current detection unit 52b. For example, when the current detection unit 52 b does not detect any current, the abnormality detection unit 52 c determines that the coil 12 is disconnected and outputs an abnormality signal to the fraud detection unit 53. If the current detection unit 52b detects a current, the abnormality detection unit 52c determines that the coil 12 is not disconnected, and does not output an abnormality signal to the fraud detection unit 53. Therefore, the self-diagnosis circuit 52 can self-diagnose whether the coil 12 is functioning normally. Such a self-diagnosis circuit 52 may always perform a self-diagnosis after the game machine 1 is powered on. Further, after the power is turned on, the self-diagnosis may be repeatedly performed at regular time intervals.

  And the fraud detection part 53 can detect the cutting | disconnection of the coil 12 by inputting the abnormality signal output from the abnormality detection part 52c, and is the situation where the fraud detection function by a magnet is not operating | operating effectively. Grasp that. Then, when detecting the disconnection of the coil 12, the fraud detection unit 53 outputs a signal indicating that the coil 12 is disconnected to the game control unit 50.

  The game control unit 50 shown in FIG. 10 performs control according to the progress of the game by outputting a signal, a command, or the like to the sub-control board 200 as described above. The output of the fraud detector 53 is monitored.

  And when the signal which shows that the fraudulent act is performed from the fraud detection part 53, the game control part 50 performs various processes for a fraud countermeasure at the timing. For example, by outputting a fraud warning command to the effect control board 130, a warning screen is displayed on the image display 25 and a warning sound is generated from the speaker 11. Further, the surrounding lamps are informed by lighting the frame lamp 10 and the like in a predetermined pattern. In addition, the game control unit 50 notifies the hall computer through a communication interface (not shown) that an illegal act using a magnet is being performed. Thereby, on the hall side, it is possible to grasp in real time which of the gaming machines installed in the game machine is being cheated by the magnet.

  When the signal indicating that the coil 12 is disconnected is received from the fraud detector 53, the game control unit 50 executes various processes for coping with the coil disconnection at that timing. For example, by outputting a predetermined command to the effect control board 130, a screen such as “Please call a clerk” is displayed on the image display 25, or a predetermined sound is generated from the speaker 11. Further, the surrounding lamps are informed by lighting the frame lamp 10 and the like in a predetermined pattern. In addition, the game control unit 50 notifies the hall computer through a communication interface (not shown) that the coil 12 has been disconnected. Thereby, on the hall side, it is possible to grasp in real time which gaming machine is in a state in which the coil 12 is cut among a large number of installed gaming machines. As a result, it is possible to stop the use of the gaming machine from which the coil 12 has been cut, or to quickly replace the transparent plate unit 4.

  As described above, in the gaming machine 1 according to the present embodiment, the coil 12 is disposed on the transparent plate unit 4 that is detachable from the window portion 5 of the frame member 3, and the illegality is based on the induced electromotive force generated in the coil 12. It is the structure which detects an action. Compared to a conventional reed switch type magnetic sensor or the like, the coil 12 has a very simple structure. Therefore, when the player strikes the transparent plate unit 4 or when a store clerk performs an opening / closing operation of the frame member. The possibility of failure or damage due to the impact of the battery is extremely low, and stable fraud detection is possible.

  In addition, since the coil 12 in the present embodiment is wound around the periphery of the game area 21, it does not reduce the visibility of the game area 21, and also detects illegal acts by magnets in almost the entire area of the game area 21. Is possible. In addition, as described above, the gaming machine 1 according to the present embodiment can satisfactorily detect the initial operation of the player who is going to perform an illegal act from now on, so that the player can display the warning screen on the image display 25. It is also possible to prevent misconduct in advance, for example, by deterring misconduct.

  Moreover, in this embodiment, since the coil 12 is provided along the holding | maintenance part 43 of the transparent plate unit 4, it has the structure which the coil 12 does not stand out at all. And since the coil 12 can be protected by providing the coil 12 between the 1st transparent plate 41 and the 2nd transparent plate 42, it can prevent that the impact which is enough to break the coil 12 acts on the coil 12. At the same time, the possibility of the coil 12 being cut by a malicious player or the like can be reduced.

  Further, in the present embodiment, since the self-diagnosis circuit 52 that detects the disconnection of the coil 12 is provided, even if the coil 12 is disconnected and an improper act by the magnet cannot be detected, It is possible to detect and deal with it promptly.

  As mentioned above, although one Embodiment regarding this invention was described, this invention is not restricted to the content mentioned above, A various modification is applicable.

  For example, in the above-described embodiment, a gaming machine in which a big hit lottery is performed when a game ball enters the start opening 26 and the big winning opening 28 is opened and closed a predetermined number of times when the big hit lottery is won is exemplified. However, the gaming machine of the present invention is not necessarily limited to such a gaming machine, and can be applied to various gaming machines other than the gaming machines described above.

DESCRIPTION OF SYMBOLS 1 Game machine 2 Game machine main body 3 Frame member 4 Transparent board unit 40 Transparent board 41 1st transparent board 42 2nd transparent board 5 Window part 12 Coil 20 Game board 21 Game area 51 Signal processing circuit 52 Self-diagnosis circuit (self-diagnosis means) )
53 Fraud detection unit (fraud detection means)

Claims (4)

A game board having a substantially circular game area in which a game ball is launched;
A frame member disposed on the front side of the game board and having a window portion through which the game area can be visually recognized;
A transparent plate unit detachable from the window,
A coil provided in the transparent plate unit and wound around the gaming area;
Fraud detection means for detecting fraud based on the induced electromotive force generated in the coil;
A gaming machine comprising: The transparent plate unit is
A first transparent plate;
A second transparent plate disposed in parallel with the first transparent plate at a predetermined interval;
With
The gaming machine according to claim 1, wherein the coil is provided between the first transparent plate and the second transparent plate. The transparent plate unit has a holding portion for holding peripheral edges of the first transparent plate and the second transparent plate,
The gaming machine according to claim 2, wherein the coil is provided along the holding portion.   The gaming machine according to claim 1, further comprising self-diagnosis means for detecting disconnection of the coil.

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