JP5513016B2 - Game machine - Google Patents

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 due to a magnet, for example, a reed switch type magnetic sensor in which a reed switch is closed when a magnet approaches the front frame located on the front side of the gaming machine. The technique arrange | positioned between the two glass plates of a member is proposed (patent document 1). In this technique, a plurality of reed switch type magnetic sensors are mounted on a flat plate member or card member, and the flat plate member or card member is installed in a state of being inserted between two glass plates.

JP 2005-137877 A

  However, when the magnetic detection area is enlarged in the above prior art, a flat plate member or a card-like member is arranged so as to cover a part of the game area visually recognized by the player. There is a problem of lowering.

  Further, the glass plate located on the front side of the game area is often hit by the player. The front frame member holding the two glass plates is opened and closed many times by the store clerk. Therefore, if the reed switch type magnetic sensor is arranged between two glass plates, the impact caused by the player hitting the glass plate or the impact caused by the store clerk opening and closing the front frame member is likely to act on the reed switch type magnetic sensor. Cause failure or damage.

  Especially in this type of gaming machine, if the sensor for detecting the magnet breaks down, it will not be possible to detect fraudulent acts by the player, which may cause great damage to the hall (store). is there. Therefore, a sensor for detecting fraud is required to take all possible measures against failure and damage. However, when taking countermeasures against damage or damage to a movable type sensor in which the reed switch is operated by magnetic force as in the past, the number of components around the sensor (for example, shock-absorbing material) increases, so that fraud is detected. There is a problem that the cost for doing so increases.

  Therefore, the present invention has been made for the purpose of solving the above-mentioned problems, and it is possible to detect illegal acts by magnets stably and inexpensively without reducing the visibility of the game area. The present invention provides a gaming machine that can be used.

In order to achieve the above object, the invention according to claim 1 is a gaming machine having a gaming area in which a gaming ball is launched, and disposed on the front side of the gaming board so that the gaming area can be visually recognized. A front frame member having a flexible window, a coil provided on the game board, which generates an induced electromotive force as the magnet moves in the vicinity of the window, and an illegal electromotive force based on the induced electromotive force generated in the coil. A fraud detection means for detecting an action; and an image display unit attached to substantially the center of the game area of the game board, wherein the coil is provided in a state of being wound along a back surface or a side surface of the image display unit. It is characterized by being able to.

According to such a configuration, the visibility of the game area is not deteriorated, and the coil can be arranged in a state of covering most of the game area.

The invention according to claim 2 is the gaming machine according to claim 1 , further comprising self-diagnosis means for detecting disconnection of the coil. According to such a configuration, it is possible to grasp whether the gaming machine is in a state where it is possible to detect an illegal act by a magnet, and in the unlikely event that the coil is disconnected, it is possible to quickly take a corresponding action.

  According to the gaming machine of the present invention, the game board is provided with a coil that generates an induced electromotive force in accordance with the movement of the magnet, and an illegal act by the magnet is detected by the induced electromotive force generated in the coil. Therefore, it is not necessary to arrange a sensor with respect to the window part that allows the game area to be visually recognized, and the visibility of the game area is not lowered. In addition, since the coil is less expensive than the conventional reed switch type magnetic sensor, it is possible to provide the gaming machine with a fraud detection function at a low cost. Furthermore, the coil does not have a movable object, has a simple structure, is resistant to impacts, and is less likely to be damaged than a conventional reed switch type magnetic sensor. Therefore, the gaming machine of the present invention can detect fraudulent acts using magnets stably at low cost.

It is a perspective view which shows the external appearance structure of a game machine. It is a front view which shows one structural example of a game board. It is a figure which shows an example of the attachment aspect of the game board with respect to a main body frame in the state which open | released the front frame member of the game machine. It is a figure which shows the state which attached the game board inside the main body frame in the state which open | released the front frame member of the gaming machine. It is a figure which shows an example of the arrangement | positioning form of the coil with respect to a game board. It is a figure which shows one structural example of a coil. It is a figure which expands and shows the back side of a game board partially. It is the figure which looked at the gaming machine in the first embodiment 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 in 1st Embodiment. It is a figure which shows the example of 1 structure of the self-diagnosis circuit which diagnoses the disconnection of a coil. It is the perspective view which looked at the image display unit from the back side. It is the perspective view which looked at the image display unit from the front side. It is the figure which looked at the gaming machine in 2nd Embodiment from the front. It is a figure which shows the concept of the signal processing when the fraudulent act by a magnet is performed in 2nd Embodiment.

  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.

(First embodiment)
FIG. 1 is a perspective view showing an external configuration of a gaming machine 1 in the present embodiment. The gaming machine 1 according to the present embodiment includes a main body frame 2 fixed to an island facility of a hall (store) and a front frame member 3 provided on the front side of the main body frame 2. The front frame member 3 is pivotally supported by a support portion 2a, 2a provided at the left end portion of the main body frame 2 so as to be openable and closable around a predetermined vertical axis. Further, the front frame member 3 has a window portion 5 in which a transparent plate unit 4 for fitting a game area 21 of the game board 20 provided inside the main body frame 2 is visible.

  Further, as shown in FIG. 1, the front frame member 3 has a ball receiving portion 6 formed in a state of projecting to the front side of the gaming machine 1 below the window portion 5. On the upper surface of the ball receiving portion 6, a ball receiving tray 8 formed in a concave shape for receiving a prize ball paid out from the gaming machine 1 is provided. For example, the bottom of the ball tray 8 is inclined rightward, and when a game ball is paid out, the game class rolls the ball tray 8 rightward and is provided on the back side of the front frame member 3. Guided to the game ball launch mechanism. Further, on the upper surface of the ball receiving portion 6, there are provided various effect buttons 9 that are operated by the player to enjoy the effects.

  A handle lever 7 operated by the player is provided at the lower right portion of the ball receiving portion 6. When the player rotates the handle lever 7 clockwise, the game ball launching mechanism is activated, and the game ball is launched into the game area 21 of the game board 20 at a predetermined time interval with the hitting force according to the operation angle. It is. When the game ball enters a variety of winning holes provided on the game board 20, the corresponding prize ball is paid out to the ball tray 8.

  Further, the front frame member 3 includes frame lamps 10 for various effects provided on the upper side and both left and right sides of the window portion 5 and on the lower side of the ball receiving portion 6. Further, the front frame member 3 is provided with a pair of left and right speakers 11 at the top thereof, and generates sound for various effects.

  Next, an example of the gaming board 20 provided inside the main body frame 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 unit 24 is provided inside the game area 21 so as to be positioned approximately at the center of the game board 20. The image display unit 24 is fitted into a through-hole formed substantially at the center of the game board 20, and is attached to the game board 20 by a fixing means such as a screw.

  The image display unit 24 includes an image display 25 including a liquid crystal display at the center. The image display 25 displays effect images for performing various effects as the game progresses, notification images for performing various notifications to the player regardless of the progress of the game, and the like. The image display unit 24 also includes various board lamps for presentation and movable accessories arranged around the image display 25.

  The game area 21 is provided with known members such as a large number of nails, through gates, windmills, various winning holes, and out holes arranged around the image display unit 24. Therefore, the game balls launched into the game area 21 roll down the game area 21 while changing the course by many nails, windmills, etc., and pass through the through gates or enter various winning holes. It is balled or discharged from the outlet. In the case of the illustrated example, a through gate 29 is provided on the left side of the image display unit 24, and a game ball passes through the through gate 29, so that a normal symbol lottery is performed in the gaming machine 1. Also, below the image display unit 24, there are provided a start opening 26 and an electric tulip 27 in which a big hit lottery is performed when a game ball enters, and a big winning opening 28 that opens and closes a predetermined number of times when winning in the big hit lottery. Yes. When the electric tulip 27 wins the normal symbol lottery performed in association with the game ball passing through the through gate 29, the left and right blade members are opened for a predetermined time and a predetermined number of times. Further, at the bottom of the game area 21, an out port 21a is provided for discharging game balls that have not entered any of the winning ports to the back side of the game board 20.

  A display 30 made up of, for example, a plurality of LED light emitting elements is provided outside the game area 21 and in the lower right part of the game board 20. The display 30 includes, for example, a normal symbol display 31 for displaying a normal symbol lottery result, a normal symbol hold indicator 32 for displaying the number of normal symbol lotteries held, and a special symbol corresponding to the result of the jackpot lottery. It has a special symbol display 33 for displaying, and a special symbol hold indicator 34 for displaying the number of lottery lotteries held. That is, the display 30 is for displaying the result of the normal symbol lottery and the result of the jackpot lottery as the game progresses. Such a display device 30 has a display size smaller than that of the image display device 25 and is displayed in a manner that makes it difficult for the player to grasp the various lottery results. Therefore, the player usually plays a game while visually recognizing the effect image displayed on the image display 25.

  For example, when a game ball launched into the game area 21 enters the start port 26 or the electric tulip 27, the gaming machine 1 performs a big hit lottery based on the ball. Then, the gaming machine 1 activates the special symbol display 33 to display the special symbol variation for a predetermined time, stops the variation display after the predetermined time has elapsed, and displays the special symbol corresponding to the result of the big hit lottery. As the types of winning in the jackpot lottery, for example, there are “big jackpot” and “small jackpot”. When the jackpot is won, the special symbol display 33 starts a special symbol variation display for a predetermined time. After a lapse, the player stops with a special symbol corresponding to the jackpot displayed. In addition, when winning a small hit, the special symbol display 33 stops after displaying a special symbol corresponding to the small hit after a predetermined time has elapsed since the start of the special symbol variation display. However, the special symbol corresponding to each of the big hit and the small hit is a symbol (display mode) that is difficult to distinguish and grasp at a glance.

  On the other hand, in the image display 25, during the special symbol variation display in the special symbol display 33, for example, three columns of decorative symbols with numbers are displayed. During the variation display of the decorative symbols, various effects such as a notice effect and a reach effect may be performed on the gaming machine 1. For example, when stopping in a state where two rows of decorative symbols out of three rows of decorative symbols are aligned, a shift is made to reach production, and a moving image for reach production is displayed on the image display 25. The three-column decorative symbol variation display is stopped simultaneously with or just before the special symbol variation display on the special symbol display 33 is stopped, and the player is notified of the result of the big hit lottery. For example, if the jackpot is won, the three rows of decorative symbols stop in a state where all of the decorative symbols such as “7, 7, 7” are aligned, so that the player can know that the jackpot has been won. .

  When the jackpot lottery is won, the gaming machine 1 shifts to the jackpot game (special game state), and the jackpot 28 is opened and closed. In this jackpot game, for example, the opening time per opening for opening the big winning opening 28 is set to a predetermined time (for example, 30 seconds), and the opening setting time for each time elapses or predetermined during the opening. If the number of balls (for example, nine) is counted, a round for closing the special winning opening 28 is repeated a predetermined number of times (for example, 15 rounds). Therefore, the player can acquire a lot of prize balls by putting a lot of game balls into the big prize opening 28 in the jackpot game.

  In addition, when a small win is won in the big win lottery, the gaming machine 1 shifts to a small win game, and in this case, the big winning opening 28 is opened and closed. However, in the small hit game, the opening time per time for opening the big winning opening 28 is set to a shorter time (for example, 0.1 second) than the big hit game. Therefore, in the small hit game, it is usually difficult to enter many game balls into the open large winning opening 28, and it is difficult for the player to obtain many prize balls.

  The game board 20 as described above can be visually recognized by the player through the transparent plate unit 4 fitted in the window portion 5 of the front frame member 3, and in particular, an abbreviation of the game area 21 in the game board 20. The whole can be visually recognized. The transparent plate unit 4 includes, for example, two transparent glass plates, and is configured to hold the peripheral edge portion of each transparent glass plate so that the two transparent glass plates are separated from each other by a predetermined gap. .

  FIG. 3 is a view showing an example of the manner in which the game board 20 is attached to the main body frame 2 with the front frame member 3 of the gaming machine 1 being opened. 4 is a view showing a state in which the front frame member 3 of the gaming machine 1 is opened and the game board 20 is attached to the inside of the main body frame 2. As shown in FIG. 3 and 4, illustration of the above-described members provided in the game board 20 is omitted. As shown in FIG. 3, the game board 20 is mounted inside the main body frame 2 from the front side of the main body frame 2. Then, the game board 20 mounted inside the main body frame 2 is fixed to the main body frame 2 with screws or the like. As a result, the game board 20 is held inside the main body frame 2 as shown in FIG.

  When the player plays a game, the front frame member 3 is closed to the main body frame 2 and locked as shown in FIG. 1, whereas a ball jam or the like occurs in the game area 21, for example. Then, the store clerk unlocks the front frame member 3 and opens the front frame member 3 as shown in FIG.

  Further, as shown in FIG. 3, the game board 20 is provided with a coil 12 for detecting fraud by a magnet. The coil 12 is arranged in a state where it is wound a predetermined number of times along the side surface of the game board 20, and the entire area of the board surface of the game board 20 is contained inside the coil 12. Therefore, the coil 12 surrounds almost the entire game area 21 where the game ball is launched.

  Further, as shown in FIG. 3, a flat plate-like support portion 15 is provided at a predetermined position of the main body frame 2 so as to face the back of the game board 20, and a connector 16 is provided on the support portion 15. Yes. The connector 16 is for electrically connecting the coil 12 provided on the game board 20 to a control mechanism described later. The other connector that forms the pair of connectors 16 is provided on the back side of the game board 20, which will be described later.

  FIG. 5 is a view showing an example of the arrangement of the coils 12 with respect to the game board 20, and FIG. 5A is an enlarged view of the corner A of the game board 20 shown in FIG. 3, and FIG. Is a cross-sectional view thereof. As shown in FIG. 5, the side surface 20 a of the game board 20 is provided with an annular groove 20 b formed over the entire circumference of the game board 20. The coil 12 is laid in a state of being immersed in the annular groove 20b, and has a mounting form that does not protrude outward from the side surface 20a of the game board 20. Therefore, when the game board 20 is attached to the inside of the main body frame 2 or when the game board 20 is attached to the main body frame 2, the coil 12 does not rub against the inner side of the main body frame 2, and the coil 12 12 is prevented from being damaged. Further, by providing the coil 12 on the side surface 20a of the game board 20, when the game board 20 is attached to the main body frame 2, the coil 12 is concealed by the main body frame 2 as shown in FIG. Therefore, the coil 12 can be arranged so as not to be noticeable. Further, even if a malicious person tries to intentionally cut the coil 12, the gap between the game board 20 and the main body frame 2 is small, so that it is difficult to cut and there is an advantage that the intentional cutting action can be prevented well. .

  However, the arrangement of the coils 12 is not limited to that shown in FIG. For example, an annular groove that surrounds at least substantially the entire game area 21 may be formed on the front side or the back side of the game board 20, and the coil 12 may be disposed in the annular groove. In this case, from the viewpoint of preventing the coil 12 from being intentionally cut, it is more preferable that the coil 12 is disposed on the back side of the game board 20.

  FIG. 6 is a diagram illustrating a configuration example of the coil 12. The coil 12 is comprised by the cable 19 which has several core wire 19a-19h, for example. The cable 19 has a diameter that can be accommodated in the annular groove 20b of the game board 20, and a plurality of core wires 19a to 19h accommodated therein are each provided with an insulating coating, and each of the core wires 19a to 19h is independent. It has become a conducting wire. The cable 19 is cut according to the length of the annular groove 20b, and the core wires 19a to 19h appearing at both ends thereof are alternately connected as shown in FIG. 6, so that the coil 12 having the number of turns corresponding to the number of core wires is obtained. Is configured. The core wire 19a appearing at one end of the cable 19 and the core wire 19h appearing at the other end are not connected to any other core wire, and become both ends of the coil 12. That is, when a magnetic flux change occurs in the coil 12, the induced electromotive force appears between the core wire 19a at one end of the cable 19 and the core wire 19h at the other end. In the case of the illustrated example, since the number of core wires is eight, the number of turns of the coil 12 is eight, but this is not necessarily limited thereto. The configuration of the coil 12 described above is an example and is not necessarily limited thereto, and a coil 12 different from the above configuration may be employed.

  Next, FIG. 7 is an enlarged view showing the back side of the game board 20, and shows the configuration of the back side of the lower left corner of the game board 20 when viewed from the front. First, in the example shown in FIG. 7A, a coil connection portion 20 c is formed at the corner on the back side of the game board 20. The coil connection portion 20c is formed in a thin plate shape, for example, compared with other portions of the game board 20. A support substrate 41 is provided on the surface of the coil connection portion 20 c, and two connectors 14 and 43 are provided on the support substrate 41. The connectors 14 and 43 are electrically connected to each other by wiring formed on the support substrate 41. The connector 43 is for connecting the connector 42 to which the core wires 19 a and 19 h extending from the coil 12 are connected. By attaching the connector 42 to the connector 43, the coil 12 is electrically connected to an electrode (not shown) provided on the connector 14. To do.

  In the example shown in FIG. 7B, only the connector 14 is provided on the support substrate 41, and the core wires 19a and 19h extending from the coil 12 are directly connected to the electrodes (not shown) provided on the connector 14. Connected to The other points are the same as in the example of FIG.

  7A and 7B, the connector 14 is at a position facing the connector 16 provided on the main body frame 2. The connector 14 and the connector 16 are a pair of one male and the other female, and by connecting the two, the coil 12 provided on the game board 20 is electrically connected to a control mechanism described later. can do. In particular, in this embodiment, by attaching the game board 20 to a predetermined position inside the main body frame 2, the connector 14 and the connector 16 are attached to each other, the internal electrodes are connected to each other, and the coil 12 is made conductive. can do. That is, if the game board 20 is appropriately attached to the main body frame 2, the operation of electrically connecting the coil 12 is thereby completed.

  Further, since the coil connection portion 20c of the game board 20 is formed in a thin plate shape, when the game board 20 is attached to the main body frame 2 and the connector 14 and the connector 16 are attached to each other, the support portion 15 is attached to the game board 20. It can also be set so as to be substantially flush with the back surface of. In this case, since the installation space for the connectors 14 and 16 for connecting the coil 12 can be substantially accommodated within the thickness of the gaming board 20, when installing other members inside the gaming machine 1, It can suppress that 16 becomes an obstacle.

  As described above, in this embodiment, when the game board 20 is mounted on the main body frame 2, the connectors 14 and 16 are connected to each other, and the coil 12 is electrically connected to the gaming machine 1. There is no need to perform work for connecting the connectors 14 and 16 separately. Therefore, there is an advantage that the coil 12 provided on the game board 20 can be reliably connected to the gaming machine 1 and the work of attaching the game board 20 can be efficiently performed.

  Further, when the game board 20 is attached to the main body frame 2, 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 front frame member 3, it is possible to prevent the player from touching the coil 12 directly.

  FIG. 8 is a view of the gaming machine 1 according to the present embodiment as viewed from the front. In the state shown in FIG. 8, 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 front frame member 3 and the display of the decorative symbols on the image display 25. Do. In FIG. 8, the coil 12 mentioned above is arrange | positioned as shown with the broken line in the figure, for example. However, the coil 12 shown in FIG. 8 is in a state where it cannot be visually recognized from the front side of the gaming machine 1.

  As shown in FIG. 8, the coil 12 is wound a predetermined number of times so as to surround the entire game area 21. That is, the entire game area 21 is housed inside the coil 12. For this reason, when the player attempts to cheat, when the magnet is brought 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. 9 is a block diagram showing a control mechanism of the gaming machine 1 and shows various control boards attached to the back side of the gaming machine 1 (further back side of the game board 20). 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 determines whether a game control unit 50 that controls main operations related to the game, a signal processing circuit 51 that processes an output signal (inductive electromotive force) from the coil 12, and whether or not a fraudulent act has been performed by a magnet. And a fraud detection unit 53 for detection. 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 includes a start port switch 81 for detecting that a game ball has entered the start port 26 or the electric tulip 27, an electric chew solenoid 82 for opening and closing the electric tulip 27, and a game ball having a predetermined through gate 29. A gate switch 83 for detecting that the ball has passed, a normal winning port switch 84 for detecting that the game ball has entered the normal winning port, and a big winning port switch for detecting that the game ball has entered the big winning port 28 85, a special winning opening solenoid 86 for opening and closing the special winning opening 28, a normal symbol display 31, a normal symbol holding display 32, a special symbol display 33, and a special symbol holding display 34 are connected.

  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, and if elected, the electric chew solenoid 82 is driven for a predetermined time or a predetermined number of times to open the electric tulip 27. . 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. . Also, when the jackpot lottery by the game control unit 50 is won, the game control unit 50 displays a special symbol corresponding to the hit type after the change display of the special symbol, and starts opening / closing driving of the big winning opening solenoid 86. At the same time, by controlling each part of the sub-control board 200 according to the hit type, the gaming machine 1 is shifted to the jackpot game.

  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. For example, a decorative symbol variation display pattern, lighting patterns of various lamps, and the like are determined based on a variation pattern input from the main control board 100 along with a special symbol variation display, and the special control variation display is performed by the main control substrate 100. During the period of time, each of the image control board 140 and the lamp control board 150 is controlled so as to produce an effect according to the result of the big hit lottery. In addition, when the player operates the effect button 9, the effect control board 130 may change the content of the effect 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 a background image display process, a decorative symbol display process, and a character image display process on the VRAM 144, so that a background image, a decorative symbol image, a character image, etc. are displayed on the image display unit 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 87 based on instructions from the presentation control board 130, and various movable functions for presentation. The accessory driving unit 88 for driving the object is controlled.

  The signal processing circuit 51 provided on the main control board 100 is a circuit including various processing units such as a signal amplifier, a noise removal circuit, an inverting circuit, and an A / D converter. The power is signal 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 it is provided in the vicinity of the coil 12 of the game board 20, the wiring for connecting the coil 12 to the signal processing circuit 51 can be shortened as much as possible, and noise components input to the signal processing circuit 51 can be suppressed. it can.

  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. 10 is a diagram illustrating a concept of signal processing when an illegal act using a magnet is performed. As shown in FIG. 10A, the magnet M is moved from the front side of the gaming machine 1 in the direction F <b> 1 approaching the transparent plate unit 4 (or the window portion 5), and then the magnet M is moved away from the transparent plate unit 4. When moving to F2, the magnetic flux passing through the coil 12 provided on the game board 20 increases, for example, at first, and then decreases. Therefore, the coil 12 outputs an output signal (induced electromotive force) SG1 as shown in FIG. 10B 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 connected to the coil 12 performs the signal processing in the various processing units described above on the output signal SG1 from the coil 12 as shown in FIG. Output. The output signal SG2 is a signal corresponding to the induced electromotive force SG1 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 may be set as appropriate so as to have sufficient sensitivity to the approach and separation of the magnet M.

  Further, since the coil 12 is wound so as to surround the game area 21 on the game board 20, it is possible to detect the magnet M in almost the entire area of the game area 21, and particularly shown in FIG. As described above, when the magnet M moves in the direction F1 approaching the transparent plate unit 4 or moves in the direction F2 away from the transparent plate unit 4, a large induced electromotive force is generated in the coil 12. Therefore, for example, there is an advantage that it is possible to satisfactorily detect an initial action of a player who tries to bring a magnet closer to the transparent plate unit 4 in order to perform an illegal act.

  Further, if the magnet M is moved in the vertical and horizontal directions with respect to the game area 21 while the magnet M 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. 10A, 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.

  Thus, in the gaming machine 1 of the present embodiment, the magnet M moves in the vicinity of the window 5 on the front side of the game area 21 by the coil 12, the signal processing circuit 51, and the fraud detection unit 53 provided on the game board 20. If so, it can be detected. In particular, it has high sensitivity to the movement of the magnet M approaching the game area 21 and the movement of the magnet M moving away from the game area 21.

  Next, FIG. 11 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 54 connected to one end side of the coil 12, a current detection unit 55 connected to the other end side of the coil 12, and a disconnection of the coil 12 based on the detection result of the current detection unit 55. And an abnormality detection unit 56 that detects the disconnection of the coil 12 when the abnormality detection unit 56 detects the disconnection of the coil 12.

  The current source 54 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 detection unit 55 detects a constant current generated by the current source 54. On the other hand, when the coil 12 is disconnected, the current detection unit 55 does not detect a constant current generated by the current source 54. The abnormality detection unit 56 determines the disconnection of the coil 12 based on the current value detected by the current detection unit 55. For example, when the current detection unit 55 does not detect any current, the abnormality detection unit 56 determines that the coil 12 is disconnected, and outputs an abnormality signal SG5 to the fraud detection unit 53. If the current detection unit 55 detects a current, the abnormality detection unit 56 determines that the coil 12 is not disconnected, and does not output an abnormality signal to the fraud detection unit 53.

  Such a self-diagnosis circuit 52 can self-diagnose whether the coil 12 is functioning normally. The timing at which the self-diagnosis circuit 52 performs the self-diagnosis can be set as appropriate. 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 disconnection of the coil 12 by inputting the abnormality signal SG5 output from the abnormality detection part 56, and the fraud detection function by the magnet is not operating effectively. Know that there is. When the fraud detection unit 53 detects that the coil 12 is in a disconnected state, the fraud detection unit 53 outputs a signal indicating that the coil 12 is in a disconnected state to the game control unit 50.

  The game control unit 50 shown in FIG. 9 performs control according to the progress of the game by outputting a signal or a command 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 production control board 130, a warning image is displayed superimposed on the front side of the decorative design on the image display 25, or for warning from the speaker 11. Generate sound. 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 detection unit 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 production control board 130, an image such as “Please call a clerk” is displayed on the image display unit 25 so as to be superimposed on the front side of the decorative design, or from the speaker 11. A predetermined sound is generated. Further, the surrounding lamps are informed by lighting the frame lamp 10 and the like in a predetermined pattern. Further, the game control unit 50 notifies the hall computer via a communication interface (not shown) that the coil 12 is disconnected. Thereby, on the hall side, it is possible to grasp in real time which one of the many gaming machines installed has a broken state of the coil 12. Appropriate measures can be taken promptly, such as discontinuing use of the gaming machine with the coil 12 disconnected.

  As described above, in the gaming machine 1 of the present embodiment, the coil 12 is arranged on the game board 20 having the game area 21 in which a game ball is launched, and the illegality caused by the magnet is based on the induced electromotive force generated in the coil 12. Actions can be detected. Since the configuration of the coil 12 is extremely simple compared to a conventional reed switch type magnetic sensor or the like, the illegal act detection function can be imparted to the gaming machine 1 at a low cost. Further, by providing the coil 12 on the game board 20, the coil 12 is damaged by an impact or the like even when the player strikes the transparent plate unit 4 or when the store clerk performs the opening / closing operation of the front frame member 3. The possibility is extremely low, and stable fraud detection is possible.

  Further, since the coil 12 in this embodiment is wound so as to surround the entire game area 21, the visibility of the game area 21 is not deteriorated, and fraudulent acts by magnets in almost the entire game area 21. Can be detected satisfactorily. In addition, as described above, since it is possible to detect well the initial operation of a player who intends to perform a fraudulent act from now on, a warning image or the like is displayed on the image display 25 so that the player can be cheated. It is also possible to prevent fraudulent acts before they occur.

  Furthermore, in the gaming machine 1 of the present embodiment, if the gaming board 20 is attached to the main body frame 2, the connector 14 is thereby attached to the connector 16, so that the gaming board is separate from the mounting work of the gaming board 20. There is no need to perform wiring work or connection work for connecting the coil 12 provided on the work piece 20, and work efficiency when the transparent plate unit 4 is mounted is improved.

(Second Embodiment)
Next, a second embodiment will be described. In the present embodiment, a configuration example in which the coil 12 is arranged with respect to the image display unit 24 provided in the game board 20 will be described. In the present embodiment, the same members as those already described in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

  FIG. 12 is a perspective view of the image display unit 24 viewed from the back side. As shown in FIG. 12, in this example, the coil 12 is disposed on the back side of the image display unit 24. On the back side of the image display unit 24, holding members 48 that hold the coil 12 are attached at a plurality of locations. The coil 12 is held on the back side of the image display unit 24 by the plurality of holding members 48.

  Next, FIG. 13 is a perspective view of the image display unit 24 viewed from the front side. As shown in FIG. 13, in this example, the coil 12 is disposed on the side surface of the image display unit 24. For example, holding members 48 as shown in FIG. 12 are provided at a plurality of locations on the side surface of the image display unit 24, and the coils 12 are arranged.

  In the present embodiment, as shown in FIG. 12 or FIG. 13, the coil 12 may be provided on either the back surface or the side surface of the image display unit 24. Since the image display unit 24 is attached in a state of being fitted into a through-hole formed at substantially the center of the game board 20 as described above, the image display unit 24 on which the coil 12 is arranged as described above is attached to the game board 20. If it is attached to the coil 12, the coil 12 cannot be viewed from the front side of the gaming machine 1, and a malicious person cannot intentionally cut the coil 12.

  FIG. 14 is a view of the gaming machine 1 according to the present embodiment as viewed from the front. In FIG. 14, the coil 12 is arranged as indicated by a broken line in the drawing, for example. However, the coil 12 shown in FIG. 14 is in a state where it cannot be viewed from the front side of the gaming machine 1.

  As shown in FIG. 14, the coil 12 does not surround the entire game area 21, but is wound a predetermined number of times while surrounding most of the game area 21. That is, most of the central area of the game area 21 is housed inside the coil 12. For this reason, when the player attempts to cheat, when the magnet is brought close to the transparent plate unit 4, the magnetic flux penetrating the coil 12 is changed by any part of the game area 21. In particular, most of the fraudulent acts are to guide the game ball to the starting opening 26 or the big winning opening 28 located below the image display unit 24. The magnetic flux passing through the coil 12 provided in the display unit 24 changes. As a result, an induced electromotive force is generated in the coil 12 in a direction to cancel the magnetic flux change. Therefore, 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 provided in the image display unit 24. The control mechanism of the gaming machine 1 in the present embodiment is the same as that described in the first embodiment, and the induced electromotive force output from the coil 12 is signal processing provided on the main control board 100. Detected by circuit 51. Then, the fraud detector 53 detects the presence or absence of fraud by the magnet based on the output signal from the signal processing circuit 51.

FIG. 15 is a diagram illustrating the concept of signal processing when an illegal act using a magnet is performed. As shown in FIG. 15 (a), the magnet M is moved from the front side of the gaming machine 1 in the direction F3 approaching the start port 26, the big prize opening 28, etc., and then the magnet M is moved in the direction F4 away. As a result, the magnetic flux around the coil 12 changes, and accordingly, the magnetic flux passing through the coil 12 also changes. Therefore, the coil 12 outputs an output signal (induced electromotive force) SG3 as shown in FIG. 15B as the magnet M moves in the directions F3 and F4. 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. Signal processing circuit 51 connected to the coil 12, to the output signal SG 3 from the coil 12 as shown in FIG. 15 (b), the output signal by sequentially performing the signal processing in the various processing units described above SG4 Is output. The output signal SG4 is a signal corresponding to the induced electromotive force SG3 generated by the coil 12, and is output as a digital signal, for example. The fraud detector 53 can detect whether or not an illegal act by a magnet is performed in the gaming machine 1 by inputting the output signal SG4. It should be noted that the number of turns of the coil 12 may be set as appropriate so as to have sufficient sensitivity to the approach and separation of the magnet M with respect to the start opening 26 and the big winning opening 28.

  Therefore, also in the present embodiment, an induced electromotive force is generated in the coil 12 with the movement of the magnet M in the vicinity of the window portion 5, and therefore it is possible to detect an illegal act based on the induced electromotive force. . Particularly in the present embodiment as well, it is possible to satisfactorily detect an initial operation of a player who tries to bring the magnet M close to the transparent plate unit 4 in order to perform an illegal act, for example.

  Further, if the magnet M is moved in the vertical and horizontal directions with respect to the game area 21 while the magnet M is close to the transparent plate unit 4, the magnetic flux penetrating the coil 12 is changed accordingly. The magnetic flux change in this case becomes larger than that in the first embodiment. Therefore, the gaming machine 1 of the present embodiment has high sensitivity when the magnet M moves in the vertical and horizontal directions with respect to the gaming area 21 in the vicinity of the window portion 5.

  Other configurations are the same as those in the first embodiment. For example, a self-diagnosis circuit 52 for diagnosing a disconnection of the coil 12 is also provided in this embodiment. The preferred connection form of the coil 12 in this embodiment is the same as that in the first embodiment. For example, the connector 14 provided on the game board 20 with wiring from the coil 12 provided on the image display unit 24 (see FIG. 7). It is preferable to adopt a connection form in which the connector 14 and the connector 16 are attached to each other by attaching the game board 20 to the main body frame 2.

  As described above, the gaming machine 1 according to the present embodiment is arranged in a state in which the coil 12 is wound a predetermined number of times along the back surface or side surface of the image display unit 24 provided on the game board 20. The visibility of the game area 21 is not reduced. Moreover, in the case of this embodiment, the arrangement is such that the coil 12 cannot be touched only by opening the front frame member 3. Therefore, there is no possibility of the coil 12 being cut by a malicious person, and it is possible to detect fraudulent acts by the magnet stably at low cost.

(Modification)
As mentioned above, although several embodiment regarding this invention was described, this invention is not limited 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.

  Further, in the first embodiment described above, an example in which the coil 12 is arranged so that the entire game area 21 is accommodated inside the coil 12 is exemplified. It is intended to be guided to the start opening 26, the big winning opening 28, etc. located below the display unit 24. Therefore, for example, an annular groove that surrounds at least the start opening 26, the big prize winning opening 28, and the like may be formed on the back side of the game board 20, and the coil 12 may be disposed in the annular groove. Thereby, many fraudulent acts can be detected, and the size of the coil 12 can be reduced.

  Moreover, in the said embodiment, although the example which arrange | positions one coil 12 with respect to the game machine 1 was shown, you may arrange | position a some coil. In this case, when an illegal act with a magnet is performed, each of the plurality of coils generates an induced electromotive force. Therefore, even if one coil causes a contact failure or the like, an illegal act can be detected well if another coil generates an induced electromotive force.

DESCRIPTION OF SYMBOLS 1 Game machine 2 Main body frame 3 Front frame member 4 Transparent board unit 5 Window part 12 Coil 14 Connector (1st connector)
16 connector (second connector)
20 game board 20b annular groove 21 game area 24 image display unit 51 signal processing circuit 52 self-diagnosis circuit (self-diagnosis means)
53 Fraud detection unit (fraud detection means)

Claims (2)

A game board having a game area in which game balls are launched;
A front frame member that is disposed on the front side of the game board and has a window portion through which the game area can be visually recognized;
A coil that is provided in the game board and generates an induced electromotive force in accordance with the movement of the magnet in the vicinity of the window;
Fraud detection means for detecting fraud based on the induced electromotive force generated in the coil;
An image display unit that is attached to substantially the center of the game area of the game board;
With
The game machine according to claim 1, wherein the coil is provided in a state of being wound along a back surface or a side surface of the image display unit. The gaming machine according to claim 1, further comprising self-diagnosis means for detecting disconnection of the coil.

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