JP5381431B2 - Game machine - Google Patents

Description

  The present invention relates to a gaming machine.

  One type of gaming machine is a pachinko machine. In a pachinko machine, for example, a big hit lottery is performed based on a game ball launched into a game area entering a working port. When winning the occurrence of the big hit state in the lottery, for example, after the symbols that are variably displayed on a predetermined display device are stopped and displayed in a predetermined combination, the variable pitching device provided in the game area is opened and closed. Executed. Then, a privilege is given to the player such that a game ball corresponding to the number of balls entered into the variable pitching device is paid out (see, for example, Patent Document 1).

  In addition, the game area is provided with prize ball openings at positions separated from each other, and when a game ball enters the prize ball opening, a privilege that a certain game ball is paid out is given to the player. The

JP 2004-756 A

  Here, for example, an illegal act of illegally guiding the game ball to the operation port may be performed using a small magnet or the like. This makes it easy for the game ball to enter the operation port, and thus is likely to be a big win.

  In order to suppress the fraud, for example, a reed switch may be provided as a magnetic sensor for detecting magnetism, and a notification may be provided when the reed switch detects magnetism.

  However, even with such a configuration, the strength of the magnetic field decreases depending on the distance, so when a magnet is used at a position away from the reed switch installation location, the magnetic force generated from the magnet May not be detected.

  In addition, the illegal act using the magnet is not limited to the illegal induction to the operation port, and for example, there is an illegal activity that guides the game ball to the prize ball entrance using the magnet. In particular, when a plurality of prize ball openings are arranged at positions spaced apart from each other, or when the prize ball opening is arranged at a position separated from the operation opening, it is possible to illegally guide the game ball with a magnet. The area will be extensive.

  Furthermore, it is not limited to fraudulent acts that use a magnet to directly lead to the operation port and prize ball port, and the game ball is concentrated at a predetermined location in the game area using the magnet to intentionally cause clogging of the ball. In some cases, an illegal act of guiding the game ball to the operation port and the prize ball port may be performed.

  From the above, there are various methods for guiding the game ball with the magnet, and there are cases where the area where the game ball can be illegally guided with the magnet is wide in the game area. In such a case, there is a limit to the configuration in which a reed switch is simply provided.

  In addition, the above subject is not limited to a pachinko machine, and is the same also in other game machines in which a magnetic sensor such as a reed switch is used.

  The present invention has been made in view of the circumstances exemplified above, and an object thereof is to provide a gaming machine capable of suppressing an illegal act of obtaining a privilege illegally using a magnet or the like.

In order to solve the above problems, a gaming machine of the present invention is a gaming board in which a gaming ball flows down, and a gaming area in which a ball passing portion and a plurality of nails are arranged is formed on the front side, Based on the fact that the game ball has passed through the ball passing portion, a privilege granting means for granting a privilege and a back side of the game board so as to detect magnetism are provided, and the ball passing portion is provided in the detectable region. A magnetic detection means arranged to be included; a first output means for outputting a predetermined detection signal when a magnetic field having a strength higher than a predetermined value is applied to the magnetic detection means; and the detection An input means for inputting a signal; and a first signal for outputting a predetermined signal when the detection signal is input to the input means and the detection signal is continuously output for a predetermined period . 2 output means and the magnetic detection means with respect to the predetermined A magnetic field applying means for applying a pre-magnetic field is weaker magnetic field than the strength, when said detection signal is not output, the orientation of the pre-magnetic field applied by said magnetic field applying means, the long switching interval than the predetermined time period And a switching means for switching alternately .

  According to the present invention, fraud using a magnet or the like can be suppressed.

The front view which shows a pachinko machine. The perspective view which expand | deploys and shows the main structures of a pachinko machine. The front view which shows the structure of a game board. Explanatory drawing which shows a relationship between a magnetic sensor unit and a game board. Explanatory drawing which shows the internal structure of a magnetic sensor unit. Explanatory drawing which shows the area | region which a reed switch can detect magnetism. The perspective view which shows the back surface structure of a game board. The perspective view which shows the structure of a main controller unit. The front view which shows the structure of a back pack unit. The block diagram which shows the electrical constitution of a pachinko machine. Explanatory drawing which shows the outline | summary of the various counters used for game control. The circuit diagram which shows a detection circuit. The circuit diagram which shows a bias circuit. The flowchart which shows the NMI interruption process by MPU of the main control board. The flowchart which shows the timer interruption process by MPU of a main control board. The flowchart which shows a start winning process. The flowchart which shows a main process. The flowchart which shows a normal process. The flowchart which shows a magnetic sensor monitoring process. (A) Timing chart showing transition of output state from MPU to bias circuit, (b) Timing chart showing transition of current flowing through coil, (c) Timing chart showing transition of magnetic field generated from coil. The circuit diagram which shows the modification of the structure which applies a magnetic field.

  Hereinafter, embodiments of a pachinko gaming machine (hereinafter referred to as “pachinko machine”), which is a type of gaming machine, will be described in detail with reference to the drawings. FIG. 1 is a front view of the pachinko machine 10, and FIG. 2 is a perspective view showing the main configuration of the pachinko machine 10 in an exploded manner.

  The pachinko machine 10 includes an outer frame 11 that forms an outer shell of the pachinko machine 10, and a gaming machine main part 12 that is rotatably attached to the outer frame 11. The pachinko machine 10 is installed in the game hall by attaching and fixing the outer frame 11 to the island facility.

  The gaming machine main part 12 includes a main body frame 13 as a base body, a front door frame 14 disposed in front of the main body frame 13, and a back pack unit 15 disposed behind the main body frame 13. . The main body frame 13 of the gaming machine main part 12 is supported so as to be rotatable with respect to the outer frame 11.

  A front door frame 14 is rotatably supported by the main body frame 13 and can be rotated forward with the left side as a rotation base end side and the right side as a rotation front end side in a front view. Further, as shown in FIG. 2, the backpack unit 15 is rotatably supported on the main body frame 13, and when viewed from the front, the left side is the rotation base end side and the right side is the rotation front end side. It is possible to move.

  Note that the gaming machine main part 12 is provided with a locking device 16 at its rotating tip, and has a function of locking the gaming machine main part 12 to the outer frame 11 so that it cannot be opened. In addition, the front door frame 14 has a function of locking the front door frame 14 to the main body frame 13 so as not to be opened. Each of these locked states is released by performing an unlocking operation using the unlocking key on the cylinder lock 17 that is exposed on the front surface of the pachinko machine 10.

  The front door frame 14 is provided so as to cover the entire front side of the main body frame 13. A window portion 21 is formed on the front door frame 14 so that almost the entire gaming area described later can be viewed from the front. The window portion 21 has a substantially oval shape and is fitted with a transparent glass 22. Around the window portion 21, light emitting means such as various lamps are provided. For example, an annular lamp portion 23 incorporating a light emitting means such as an LED is provided along the periphery of the window portion 21. The annular lamp unit 23 is turned on or flashed according to a change in the gaming state at the time of a big hit or a predetermined reach. In addition, an error display lamp unit 24 that is turned on at the time of a predetermined error is provided in the center of the annular lamp unit 23 and at the uppermost part of the pachinko machine 10, and a prize ball that is lit during the payout of the prize ball is provided on the left and right sides thereof. A lamp unit 25 is provided. In addition, a speaker unit 26 is provided at a position close to the left and right prize ball lamp units 25 to output a sound effect corresponding to the gaming state.

  Below the window portion 21 in the front door frame 14, an upper bulging portion 31 and a lower bulging portion 32 that bulge to the near side are provided side by side. An upper pan 33 that opens upward is provided inside the upper bulging portion 31, and a lower pan 34 that also opens upward is provided inside the lower bulging portion 32. The upper plate 33 has a function of temporarily storing game balls paid out from a payout device described later and guiding them to the game ball launching mechanism side while aligning them in a row. In addition, the lower tray 34 has a function of storing game balls that become surplus in the upper tray 33.

  A game ball launching handle 41 is provided on the right side of the lower bulging portion 32 so as to protrude toward the front side. By operating the game ball launch handle 41, the game ball is launched from the game ball launch mechanism mounted below the main body frame 13.

  A game board 50 is detachably attached to the main body frame 13. The game board 50 is made of plywood, and the front surface of the game board 50 is exposed to the front side of the main body frame 13.

  Here, the structure of the game board 50 is demonstrated based on FIG. FIG. 3 is a front view of the game board 50.

  An inner rail portion 51 and an outer rail portion 52 are attached to the game board 50, and a game area Z surrounded by the rail portions 51 and 52 is formed. The inner rail portion 51 and the outer rail portion 52 constitute a guide rail, and a game ball launched from a later-described game ball launching mechanism is guided to the upper part of the game area Z.

  In the game area Z, a plurality of large and small openings penetrating in the front-rear direction are formed by performing router processing. Each opening is provided with a general winning port 53, a variable winning device 54, an operating port 55, a through gate 56, a variable display unit 57, and the like. A total of four general winning ports 53 are provided on the left and right, respectively, and are arranged at positions spaced apart from each other by a predetermined distance. When a game ball enters the general winning port 53, the variable winning device 54, and the operation port 55, it is detected by a detection sensor disposed on the game board 50, and a predetermined number of award balls are paid out based on the detection result. Executed. In particular, an internal lottery is performed as to whether or not a predetermined special gaming state (hereinafter referred to as a jackpot) is won by using a winning at the operation port 55 as a trigger.

  In addition, an out port 58 is provided at the lowermost part of the game board 50, and game balls that have not entered various winning ports etc. are discharged from the game area Z through the out port 58. In addition, the game board 50 is provided with a large number of nails 59 in order to appropriately disperse and adjust the falling direction of the game balls, and various members (instruments) such as a windmill.

  The variable display unit 57 is provided with a symbol display device 61 that variably displays symbols with a winning at the operation port 55 as a trigger. The variable display unit 57 is provided with a center frame 62 so as to surround the symbol display device 61. A first specific lamp portion 63 and a second specific lamp portion 64 are provided on the upper portion of the center frame 62. Reserving lamp portions 65 and 66 are provided at the upper and lower portions of the center frame 62, respectively. The lower holding lamp unit 65 corresponds to the symbol display device 61 and the first specific lamp unit 63, and the number of times that the game ball has passed through the operation port 55 is held up to four times, and the holding lamp unit 65 is turned on. The number of reserved items is displayed. The upper holding lamp section 66 corresponds to the second specific lamp section 64, and the number of times that the game ball has passed through the through gate 56 is held up to four times, and the number of the holding balls is displayed by turning on the holding lamp section 66. It has become so.

  The symbol display device 61 is configured as a liquid crystal display device including a liquid crystal display, and display contents are controlled by a display control device described later. On the symbol display device 61, for example, symbols are displayed side by side on the left, middle, and right, and these symbols are variably displayed as they are scrolled up and down. When a predetermined combination of symbols is stopped and displayed on a preset active line, the variable winning device 54 is opened as a big hit.

  In the first specific lamp unit 63, the emission color is switched in a predetermined order using a winning at the operation port 55 as a trigger, and if the display is stopped in a predetermined color, a big hit occurs. Further, in the second specific lamp section 64, the emission color is switched in a predetermined order triggered by the passage of the game ball through the through gate 56, and when the stop color is displayed in a predetermined color, the operation port 55 is displayed. The accompanying electric accessory is opened for a predetermined time.

  The variable winning device 54 is normally in a closed state in which a game ball cannot be won or difficult to win, and is switched to a predetermined open state in which a game ball is easy to win in the case of a big win. As an opening mode of the variable winning device 54, the variable winning device 54 is repeated with a predetermined time (for example, 30 seconds) or a predetermined number (for example, 10) of winnings as one round and a plurality of rounds (for example, 15 rounds) as an upper limit. What is opened is common.

  Here, the game board 50 is provided with a magnetic sensor unit 81 as magnetic detection means. The magnetic sensor unit 81 will be described with reference to FIGS. 4 is a partial cross-sectional view schematically showing a cross-section in the front-rear direction of the game board 50, and is an explanatory view showing the positional relationship between the game board 50 and the magnetic sensor unit 81. FIG. FIG. 6 is an explanatory diagram showing an internal structure of the unit 81, and FIG. 6 is an explanatory diagram showing an area where the magnetic sensor unit 81 can detect magnetism.

  The magnetic sensor unit 81 is installed on the back side of the game board 50 around the operation port 55. The magnetic sensor unit 81 is configured to detect a magnetic field when a magnetic field is applied from the outside. As described above, the internal lottery to determine whether or not the jackpot is won is triggered by winning the operating port 55. Therefore, a magnet is brought near the operating port 55 in front of the glass 22 to illegally guide the game ball to the operating port 55. An act to be attempted is assumed. On the other hand, by providing the magnetic sensor unit 81, it is possible to detect an illegal act using the magnet.

  Further, the magnetic sensor unit 81 is provided with a connector 82, and the magnetic sensor unit 81 is electrically connected to a later-described main controller via the connector 82, and the detection result of the magnetic sensor unit 81 is Input to the main controller. When the main control device identifies an illegal act using a magnet based on the detection result of the magnetic sensor unit 81, it performs a process for notifying that magnetism has been detected.

  The configuration relating to the magnetic detection of the magnetic sensor unit 81 will be described in detail. The magnetic sensor unit 81 includes a box 83 in which a sealed internal space is formed. The box 83 is turned on by the presence or absence of a magnetic field. Alternatively, a reed switch 90 that is turned off is provided.

  The reed switch 90 includes a glass tube 91 having a substantially cylindrical shape and a sealed internal space, and has a substantially cylindrical shape as a whole. Since the position of the glass tube 91 is fixed in the box 83, the relative positional relationship between the reed switch 90 and the box 83 is fixed. Specifically, the reed switch 90 is arranged such that its longitudinal direction is along the board surface of the game board 50. In particular, the reed switch 90 is arranged such that its longitudinal direction extends in the width direction of the game board 50 and is substantially parallel to the board surface of the game board 50.

  The reed switch 90 includes a first lead piece 92 and a second lead piece 93 enclosed in a glass tube 91. Each of the lead pieces 92 and 93 is a conductive ferromagnetic material and is formed of a material that can be elastically deformed. Each of the lead pieces 92 and 93 is inserted from both ends in the longitudinal direction of the reed switch 90, and the insertion location is fixed by the glass tube 91. Each of the lead pieces 92 and 93 is formed to be displaceable in the short direction of the reed switch 90 with a fixed portion fixed by the glass tube 91 as a fixed end and a distal end side as a free end.

  A first contact portion 92a and a second contact portion 93a are provided at the free ends of the first lead piece 92 and the second lead piece 93, respectively. In a situation where no external force is applied, the first contact portion 92a and the second contact portion 93a are arranged to face each other with a predetermined interval L1 in the short direction of the reed switch 90. This state is the initial state, and the positions of the first contact portion 92a and the second contact portion 93a in the initial state are set as the initial positions. In the initial state, the reed switch 90 is in an off state.

  According to such a configuration, when a magnetic field is applied to each lead piece 92, 93 from the outside, each lead piece 92, 93 is magnetized, and between the first contact portion 92a and the second contact portion 93a. Magnetic attraction works. In this case, each of the lead pieces 92 and 93 bends with the fixed portion as a fulcrum, and the contact portions 92a and 93a come into contact with each other. As a result, the reed switch 90 is turned on.

  On the other hand, when the application of the magnetic field is stopped, the contact portions 92a and 93a return to the initial positions by the elastic force of the lead pieces 92 and 93. As a result, the reed switch 90 is turned off.

  Here, an area where the reed switch 90 can detect magnetism (hereinafter referred to as a detectable area of the reed switch 90) will be described. As shown by a broken line in FIG. The operation ports 55 are included in the detectable region of the reed switch 90 in the initial state. In other words, the reed switch 90 is arranged so that the operation port 55 is included in the detectable region of the reed switch 90 in the initial state. Thereby, it is possible to detect the magnetism at least around the operating port 55. Therefore, the illegal induction | guidance | derivation of the direct game ball to the operation port 55 using a magnet can be suppressed.

  In addition, since each contact part 92a, 93a is enclosed with the glass tube 91, it is hard to receive to the influence of external environments, such as gas and dust in air | atmosphere. Further, the inside of the glass tube 91 is filled with nitrogen gas in order to suppress activation due to contact between the lead pieces 92 and 93.

  The magnetic sensor unit 81 includes a coil 101. The coil 101 is accommodated in the box 83 together with the reed switch 90. The position of the coil 101 is fixed in the box 83, and the relative relationship with the box 83 is fixed. That is, the magnetic sensor unit 81 is configured as a unit including the reed switch 90 and the coil 101.

  Specifically, the coil 101 is arranged at a predetermined interval L2 with respect to the reed switch 90 in the short direction of the reed switch 90. The coil 101 is arranged such that its axial direction is substantially parallel to the longitudinal direction of the reed switch 90. An iron core is inserted into the coil 101. When the coil 101 is energized, a magnetic field corresponding to the current value flowing through the coil 101 is formed. In this case, since the axial direction of the coil 101 and the longitudinal direction of the reed switch 90 are substantially parallel, the direction of the magnetic field applied to the reed switch 90 by the coil 101 is a direction along the longitudinal direction of the reed switch 90. Yes.

  Here, depending on adjustment of the value of the current flowing through the coil 101, the contact portions 92a and 93a approach each other without the reed switch 90 being turned on. This state is called a preliminary application state. In the preliminary application state, the sensitivity of the reed switch 90 with respect to a magnetic field from other than the magnetic field from the coil 101 is increased. In this case, as shown by a two-dot chain line in FIGS. 4 and 6, the detectable region of the reed switch 90 extends in front of the game board 50 and extends in a direction along the board surface of the game board 50. From the above, it becomes possible to expand the detectable region of the reed switch 90 by energizing the coil 101.

  Next, the configuration of the back surface of the game board 50 will be described. FIG. 7 is a perspective view of the game board 50 as viewed from the rear.

  The variable display unit 57 disposed in the center of the game board 50 is provided with a frame cover 111 made of synthetic resin that covers the center frame 62 from the back, and is provided rearward with respect to the frame cover 111. A symbol display device 61 is attached and a display control device for driving the symbol display device is attached (not shown). The symbol display device 61 and the display control device are arranged so as to overlap in the front-rear direction (the symbol display device is in front and the display control device is in rear), and the sound lamp control device unit 112 is mounted on the rear side. The sound lamp control device unit 112 includes a sound lamp control device 113 and a mounting base 114, and the sound lamp control device 113 is mounted on the mounting base 114.

  The sound lamp control device 113 includes a sound lamp control board that controls sound and lamp display and control of the display control device in accordance with instructions from a main control device to be described later, and the sound lamp control substrate is made of a transparent resin material or the like. It is configured to be accommodated in the substrate box 115.

  A main controller unit 120 is mounted on the back of the game board 50. The configuration of main controller unit 120 will be described with reference to FIG. FIG. 8 is a perspective view showing the configuration of the main controller unit 120.

  The main control unit 120 has a synthetic resin mounting base 121, and the main control unit 122 is mounted on the mounting base 121. The main control device 122 includes a main control board having a function (main control circuit) that controls the main control of the game and a function (power failure monitoring circuit) that monitors the power source, and the main control board is a transparent resin. It is configured to be accommodated in a substrate box 123 made of a material or the like.

  The substrate box 123 includes a substantially rectangular parallelepiped box base (front case body) and a box cover (back case body) that covers an opening of the box base. The box base and the box cover are connected so as not to be opened by a sealing portion 124 as a sealing means, whereby the substrate box 123 is sealed. Five sealing portions 124 are provided on the long side portion of the substrate box 123, and at least one of them is used for sealing processing.

  Any structure can be applied to the sealing portion 124 as long as the trace remains when the box base and the box cover are opened, but the box can be obtained by inserting a locking claw into the long hole constituting the sealing portion 124. The base and the box cover are coupled so as not to be opened. The sealing process by the sealing unit 124 prevents unauthorized opening after the sealing, and makes it possible to detect such a situation early and easily even if the unauthorized opening is performed. It is possible to perform the sealing process again even after it has been performed. That is, the sealing process is performed by inserting a locking claw into at least one of the five sealing portions 124. When opening the board box 123 such as when a failure occurs in the accommodated main control board or when inspecting the main control board, the connecting part between the sealing part into which the locking claw is inserted and another sealing part is provided. Disconnect. Thereby, the box base and the box cover of the board box 123 are separated, and the internal main control board can be taken out. Thereafter, when the sealing process is performed again, the locking claws are inserted into the long holes of the other sealing portions. If the history of opening the board box 123 is left in the board box 123, it can be easily found that the illegal opening has been performed by looking at the board box 123.

  A plurality of coupling pieces 125 are provided on one short side portion of the substrate box 123 so as to protrude laterally. These coupling pieces 125 have a one-to-one correspondence with a plurality of coupled pieces 126 formed on the mounting base 121, and the coupling pieces 125 and the coupled pieces 126 are connected between the board box 123 and the mounting base 121. Sealing is performed.

  Next, the back pack unit 15 will be described. FIG. 9 is a front view of the back pack unit 15.

  The back pack unit 15 includes a back pack 131, and a payout mechanism part 132 and a control device assembly unit 133 are attached to the back pack 131. The back pack 131 is formed of a synthetic resin having transparency, and includes a base portion 141 to which the payout mechanism portion 132 and the like are attached, and a protective cover portion 142 that protrudes rearward from the pachinko machine 10 and has a substantially rectangular parallelepiped shape. The protective cover portion 142 has a shape in which the left and right side surfaces and the upper surface are closed and only the lower surface is opened, and has a size sufficient to surround at least the variable display unit 57.

  The base portion 141 is provided with an external terminal plate 143 at the upper right portion thereof. The external terminal plate 143 is provided with various output terminals, and various signals are output to the management control device on the game hall side through these output terminals.

  The base portion 141 is provided with a payout mechanism portion 132 so as to bypass the protective cover portion 142. That is, a tank 151 opened upward is provided at the uppermost portion of the back pack 131, and the game balls supplied from the island facilities of the game hall are sequentially replenished to the tank 151. A tank rail 152 that is gently inclined toward the downstream side is connected to the lower side of the tank 151, and a case rail 153 that extends in the vertical direction is connected to the downstream side of the tank rail 152. A payout device 154 is provided at the most downstream portion of the case rail 153. The game balls paid out from the payout device 154 are supplied to the game ball distribution portion 155 provided in the base portion 141 of the back pack 131 through a payout passage (not shown) provided on the downstream side of the payout device 154.

  The game ball distribution unit 155 is provided with a game ball paid out from the payout device 154 at the lower end of the upper plate 33, the lower plate 34, or the base unit 141, and guides the game ball to an island facility of the game hall ( (Not shown).

  A backpack substrate 156 is installed in the payout mechanism portion 132. The back pack substrate 156 is supplied with, for example, a main power of AC 24 volts, and is turned on or off by a switching operation of the power switch 156a.

  A control device assembly unit 133 is attached to the lower end portion of the base portion 141. The control device collective unit 133 has a horizontally long mounting base 161, and a payout control device 162 and a power supply and launch control device 163 are mounted on the mounting base 161. The payout control device 162 and the power supply / launch control device 163 are arranged so as to overlap each other so that the payout control device 162 is behind the pachinko machine 10.

  The payout control device 162 contains a payout control board in the board box 164, and is configured to control the payout device 154 so as to pay out a predetermined game ball in accordance with a signal from the main control device 122. Yes.

  The power source and launch control device 163 includes a power source and launch control board housed in a board box 165, and the board generates and outputs predetermined power required by various control devices and the like, and further a game ball by the player Control of the launch of the game ball accompanying the operation of the firing handle 41 is performed. Further, the power and launch control device 163 is provided with a RAM erase switch 166. This pachinko machine 10 has a function to store and store various data so that even if a power failure occurs, it maintains the state at the time of the power failure, and when it recovers from the power failure, it can be restored to the state at the time of the power failure. It has become. Therefore, for example, when the power supply is shut down by a normal procedure as in the case of the game hall being closed, the state before the power shut-off is stored, but when the power is turned on while pressing the RAM erase switch 166, the RAM data is initialized. It is like that.

  Note that the RAM erasure switch 166 is not limited to the configuration provided in the power supply and launch control device 163, and may be configured in the main control device 122, for example.

<Electric configuration of pachinko machine 10>
Next, the electrical configuration of the pachinko machine 10 will be described based on the block diagram of FIG. In FIG. 10, a power supply line is indicated by a double line arrow, and a signal line is indicated by a solid line arrow.

  The main control device 122 is provided with a main control board 201 and a power interruption monitoring board (power failure monitoring board) 202.

  An MPU 211 is mounted on the main control board 201. The MPU 211 temporarily stores various control programs executed by the MPU 211 and a ROM (non-volatile storage means) 212 storing fixed value data, and various data when the control program stored in the ROM 212 is executed. A RAM (volatile storage means) 213, which is a memory for storing data, and various circuits such as an interrupt circuit, a timer circuit, and a data input / output circuit are incorporated. Note that some or all of the MPU 211, the ROM 212, and the RAM 213 may be provided as separate chips.

  The MPU 211 is provided with an input port 211a and an output port. Note that an input / output port may be provided, and input / output may be appropriately changed in the MPU 211.

  The input monitoring port 211a of the MPU 211 is connected to the power interruption monitoring board 202, the payout control device 162, and other sensor groups. In this case, a power supply and launch control device 163 is connected to the power failure monitoring board 202, and the MPU 211 is connected to the + 12V DC and logic for operating power from the power supply and launch control device 163 via the power failure monitoring board 202. DC + 5V is supplied.

  As a part of the sensor group, a plurality of detection sensors provided in the ball entering portion such as the operation port 55 and the variable prize winning device 54 are connected, and the MPU 211 of the main control device 122 performs the ball entering determination of the ball entering portion. Is called. Further, the MPU 211 executes the jackpot occurrence determination based on the entrance to the operation port 55 in the entrance portion.

  Here, the electrical configuration for determining the occurrence of a jackpot in the MPU 211 will be described with reference to FIG.

  The MPU 211 uses various counter information during the game to perform jackpot lottery, setting of the emission color of the first specific lamp unit 63, setting of symbol display of the symbol display device 61, and the like. The jackpot random number counter C1 used for the lottery, the jackpot type counter C2 used when determining the jackpot type such as the probability variation jackpot or the normal jackpot, and the reach random number counter used for the reach lottery when the symbol display device 61 is moved out and fluctuates. C3, the random number initial value counter CINI used for setting the initial value of the jackpot random number counter C1, the period for switching the color displayed on the first specific lamp unit 63, and the symbol variable display time in the symbol display device 61 are determined. The fluctuation type counter CS to be used is used.

  Each of the counters C1 to C3, CINI, and CS is a loop counter that adds 1 to the previous value every time it is updated and returns to 0 after reaching the maximum value. Each counter is updated at short time intervals, and the updated value is appropriately stored in the lottery counter buffer 213a of the RAM 213. The RAM 213 is provided with a holding ball storage area 213b composed of one execution area and four holding areas (holding first to fourth areas). In each of these areas, a game ball to the operation port 55 is provided. Each of the values of the jackpot random number counter C1, the jackpot type counter C2 and the reach random number counter C3 are stored in time series in accordance with the ball entry history.

  For details of each counter, the jackpot random number counter C1 is configured such that, for example, 1 is sequentially added within a range of 0 to 676, and after reaching the maximum value (that is, 676), it returns to 0. In particular, when the jackpot random number counter C1 makes one round, the value of the random number initial value counter CINI at that time is read as the initial value of the jackpot random number counter C1. The random number initial value counter CINI is a loop counter similar to the big hit random number counter C1 (value = 0 to 676). The jackpot random number counter C1 is periodically updated and stored in the reserved ball storage area 213b of the RAM 213 at the timing when the game ball enters the operation port 55.

  The jackpot type counter C2 is incremented by 1 within a range of 0 to 49, and reaches a maximum value (that is, 49) and then returns to 0. In the present embodiment, the jackpot type counter C2 determines whether the probability change state or the normal state is set after the jackpot is finished. The jackpot type counter C2 is periodically updated and stored in the reserved ball storage area 213b of the RAM 213 at the timing when the game ball enters the operation port 55.

  For example, the reach random number counter C3 is incremented one by one within a range of 0 to 238, for example, and reaches a maximum value (that is, 238) and then returns to 0. The reach random number counter C3 is periodically updated and stored in the reserved ball storage area 213b of the RAM 213 at the timing when the game ball enters the operation port 55.

  For example, the variation type counter CS is incremented one by one within a range of 0 to 240, for example, and reaches a maximum value (that is, 240) and then returns to 0. The switching display time as a period for switching the color displayed on the first specific lamp unit 63 is determined by the variation type counter CS. This switching display time corresponds to the symbol variation display time of the symbol display device 61. The variation type counter CS is updated once every time a normal process to be described later is executed once, and is repeatedly updated even within the remaining time in the normal process. Then, the buffer value of the variation type counter CS is acquired at the time of starting the switching of the color displayed on the first specific lamp unit 63 and determining the variation pattern at the time of starting the variation of the symbol by the symbol display device 61.

  At the start of one game round, the MPU 211 of the main control board 201 uses the values of the counters C1 to C3 and CS stored in the reserved ball storage area 213b to perform a big hit lottery or the first specific lamp unit 63. The switching time of the color displayed on the screen is determined, but the information on the lottery result and the switching time determined here are transmitted to the sound lamp control device 113 as a game turn command. The sound lamp control device 113 determines the effect contents of the corresponding game times, such as the fluctuation pattern in the symbol display device 61 and the presence / absence of reach, based on the game times command.

  In addition to the counters described above, a second specific lamp random number counter used for lottery for determining whether or not to open the electric accessory provided in the operation port 55 is provided. The value of the second specific lamp random number counter at that time is acquired at the timing when a winning occurs, and a lottery is performed as to whether or not to open the electric accessory based on the acquired value.

  Returning to the description of FIG. 10, the power interruption monitoring board 202, the payout control device 162, and the sound lamp control device 113 are connected to the output port of the MPU 211. Various commands such as a prize ball command are output to the payout control device 162. The game control command and the like are output from the main control board 201 to the sound lamp control device 113.

  The power interruption monitoring board 202 relays between the main control board 201 and the power supply and launch control device 163, and monitors the voltage of DC + 24V that is the maximum voltage output from the power supply and launch control device 163. When this voltage is + 22V or more, a HI level signal as a non-interruptible signal (first information) is output (transmitted) to the main control board 201. And a LOW level signal as a power failure signal (second information) is output (transmitted) to the main control board 201. The main control board 201 confirms the input of the LOW level signal in a predetermined manner, and executes a power interruption process (power failure process) to be described later based on the confirmation result.

  The payout control device 162 controls the payout device 154 to pay out a predetermined game ball based on a prize ball command or the like input from the main control board 201.

  The power supply and launch control device 163 is connected to, for example, a commercial power supply (external power supply) in a game hall or the like via the back pack substrate 156. Based on the external power supplied from the commercial power supply, the operating power required for each of the main controller 122, the payout controller 162, etc. is generated, and the generated operating power is supplied through the path indicated by the double line arrow. To do. As its outline, the power supply and launch control device 163 takes in the AC 24 volt power supplied via the back pack substrate 156, and drives the various sensors, motors, etc. DC + 12V voltage, logic DC + 5V voltage Are generated, and these DC + 12V voltage and DC + 5V voltage are supplied to the main controller 122, the payout controller 162, and the like.

  The power supply and launch control device 163 is responsible for launch control of the game ball launch mechanism in accordance with the operation of the game ball launch handle 41 by the player, and the game ball launch mechanism is in the case where a predetermined launch condition is in place. Driven.

  In addition, the power supply and launch control device 163 is equipped with a power supply unit for power interruption. When the power of the pachinko machine 10 is in an OFF state or when a power interruption occurs in a commercial power supply (from an external power supply) In the case where the power supply is interrupted), the storage holding power is supplied from the power interruption power supply unit to the RAM 213 of the main control board 201. Therefore, even in such a situation, the information stored in the RAM 213 is stored and held without being erased.

  The sound lamp control device 113 controls the various lamp units 23, 24, 25, the speaker unit 26, and the display control device 214 based on various commands output from the main control board 201. The display control device 214 controls the symbol display device 61 based on the display command input from the sound lamp control device 113.

  Here, the main control board 201 and the magnetic sensor unit 81 are electrically connected. Specifically, the main control board 201 is provided with a detection circuit 220, and the detection circuit 220 is connected to the reed switch 90. The detection circuit 220 outputs a signal corresponding to the state of the reed switch 90.

  The detection circuit 220 will be described in detail with reference to FIG. FIG. 12 is a circuit diagram of the detection circuit 220.

  The detection circuit 220 is connected to the MPU 211. The detection circuit 220 is supplied with a voltage of +12 V DC and +5 V DC from the MPU 211. The detection circuit 220 outputs a predetermined magnetic detection signal to the MPU 211 based on the reed switch 90 being turned on.

  Specifically, the detection circuit 220 includes a comparator 221 as a comparison unit. The comparator 221 is of an open collector type and includes two input terminals (an inverting input terminal (− terminal) and a non-inverting input terminal (+ terminal)) and one output terminal. A reed switch 90 is connected to the + terminal, and the input voltage Vmg inputted to the + terminal changes according to the operation of the reed switch 90.

  Specifically, the + terminal is grounded via the reed switch 90. Specifically, the first lead piece 92 is connected to the + terminal, and the second lead piece 93 is grounded. The input to the + terminal is pulled up. Specifically, a voltage of +12 V is applied to the + terminal via the pull-up resistor 222.

  According to such a configuration, when the reed switch 90 is in the OFF state, Vmg is +12 V corresponding to the HI level, whereas when the reed switch 90 is in the ON state, the + terminal is grounded and Vmg is LOW. It becomes 0V corresponding to the level.

  A CR integration circuit 223 as a low-pass filter is provided on a path connecting the reed switch 90 and the + terminal. Thereby, the malfunction of the detection circuit 220 that may be caused by chattering of the reed switch 90 is suppressed.

  The constant voltage Vref to be compared with the input voltage Vmg is input to the − terminal. Specifically, the detection circuit 220 is provided with a constant voltage circuit 224 that generates the constant voltage Vref and outputs the Vref to the negative terminal. The constant voltage circuit 224 includes a Zener diode 224a and a resistor 224b. The anode of the Zener diode 224a is grounded. A voltage of + 12V is applied to the cathode of the Zener diode 224a through the resistor 224b. The Zener voltage (breakdown voltage) of the Zener diode 224a is set smaller than + 12V (for example, + 5V). The terminal is connected in parallel to the Zener diode 224a.

  According to such a configuration, in a situation where the voltage applied to the Zener diode 224a exceeds the Zener voltage (breakdown voltage), the Zener diode 224a becomes conductive, current flows through the resistor 224b and the Zener diode 224a, and the Zener diode A voltage drop occurs until the applied voltage of 224a becomes smaller than the Zener voltage. When the voltage applied to the Zener diode 224a becomes smaller than the Zener voltage due to the voltage drop, no current flows through the Zener diode 224a, and no voltage drop occurs.

  As a result of the operation being repeated at a high speed, a Zener voltage is applied to the Zener diode 224a. The Zener voltage is input to the − terminal as Vref. In other words, it can be said that the Zener diode 224a allows a current to flow so that a voltage applied to the Zener diode 224a becomes a Zener voltage. Thereby, even if the voltage applied to the Zener diode 224a fluctuates, Vref becomes constant. As a result, by comparing the constant voltage Vref with Vmg that varies according to the operation of the reed switch 90, it is possible to reliably grasp the change in the state of the reed switch 90. Specifically, Vmg> Vref when the reed switch 90 is off, and Vmg <Vref when the reed switch 90 is on.

  In the constant voltage circuit 224, a bypass capacitor 224c is provided in parallel with the Zener diode 224a. The bypass capacitor 224c performs discharging or storing according to the change in the Zener voltage of the Zener diode 224a. As a result, noise generated when the Zener diode 224a becomes conductive is reduced.

  The comparator 221 outputs a signal corresponding to the comparison result between Vmg and Vref from the output terminal. Specifically, when Vmg> Vref, the output terminal is open. On the other hand, when Vmg <Vref, the output terminal is grounded.

  Here, the output terminal is connected to the MPU 211, and the input of the MPU 211 is pulled up. Specifically, a voltage of +5 V is applied via a pull-up resistor 225 on the path connecting the output terminal and the MPU 211. Thus, when Vmg> Vref and the output state from the comparator 221 is an open state, +5 V corresponding to the HI level signal is applied to the MPU 211. On the other hand, when Vmg <Vref and the output state from the comparator 221 is LOW level, 0 V corresponding to the LOW level signal is applied to the MPU 211.

  From the above, when the reed switch 90 is turned on, a LOW level signal as a magnetic detection signal is output from the detection circuit 220 to the MPU 211, and the MPU 211 receives that LOW level signal. Based on this, it is recognized that magnetism has been detected.

<Regarding Bias Circuit 230>
The main control board 201 is provided with a bias circuit 230 that energizes the coil 101. The bias circuit 230 is connected to the coil 101. The bias circuit 230 controls energization of the coil 101.

  Specifically, as shown in FIG. 10, the bias circuit 230 is connected to the MPU 211 and receives a voltage supply of +12 V from the MPU 211. The bias circuit 230 energizes the coil 101 based on the input of a signal from the MPU 211 and changes the direction of the current flowing through the coil 101 according to the signal from the MPU 211.

  The bias circuit 230 will be described in detail with reference to FIG. FIG. 13 is a circuit diagram of the bias circuit 230.

  The bias circuit 230 includes a drive circuit 231 that applies a + 12V voltage to the coil 101. The drive circuit 231 includes a first drive circuit 231a and a second drive circuit 231b. One end of the coil 101 is connected to the first drive circuit 231a, and the other end of the coil 101 is connected to the second drive circuit 231b.

  Specifically, the first drive circuit 231a includes a p-type MOSFET 232a and an n-type MOSFET 233a. Hereinafter, the p-type MOSFET 232a is referred to as a pMOS 232a, and the n-type MOSFET 233a is referred to as an nMOS 233a. Similarly, each MOSFET described later is also referred to as a MOS.

  A path for connecting the drains of the pMOS 232a and the nMOS 233a is provided, and the path is connected to one end of the coil 101 (the side indicated by A in FIG. 13). A voltage of + 12V is applied to the source of the pMOS 232a, and the source of the nMOS 233a is grounded. + 12V is applied to the gate of the pMOS 232a and the gate of the nMOS 233a via the pull-up resistors 234a and 235a, respectively.

  Similar to the first drive circuit 231a, the second drive circuit 231b includes a pMOS 232b and an nMOS 233b. The second drive circuit 231b is the same as the first drive circuit 231a except that the path connecting the drains of the pMOS 232b and the nMOS 233b is connected to the other end of the coil 101 (the side indicated by B in FIG. 13). Therefore, the description is omitted.

According to such a configuration, whether or not the coil 101 is energized is determined according to whether each MOS of the drive circuit 231 is on or off. In particular,
(A) When pMOS 232a and nMOS 233b are on and pMOS 232b and nMOS 233a are off (B) When pMOS 232a and nMOS 233b are off and pMOS 232b and nMOS 233a are on 101 is energized.

  Specifically, in the case of (A), +12 V on the first drive circuit 231 a side is applied to the coil 101. Thereby, as shown by the arrow in FIG. 13, a current + I flows from one end side (A side) to the other end side (B side) of the coil 101, and a magnetic field corresponding to the current direction is formed. Specifically, a magnetic field having one end side of the coil 101 as the S pole and the other end side as the N pole is formed. Then, a magnetic field + H in the direction along the longitudinal direction of the reed switch 90 is applied to the reed switch 90. By applying the magnetic field + H, the first lead piece 92 and the second lead piece 93 are magnetized. Since the reed switch 90 is disposed at a position separated from the coil 101 by a distance L2, the magnetic field + H applied to the reed switch 90 is weaker than the magnetic field formed from the coil 101.

  Here, the current + I flowing through the coil 101 is a magnetic field in which the strength H of the magnetic field applied to the reed switch 90 triggers the on / off operation of the reed switch 90 in consideration of the distance L2 between the reed switch 90 and the coil 101. It is set to be smaller than the strength of. Thereby, the initial state is shifted to the preliminary application state, and the first lead piece 92 and the second lead piece 93 approach each other without being in contact with each other as shown in FIG. Specifically, the interval L3 between the first contact portion 92a and the second contact portion 93a in the preliminary application state is smaller than the interval L1 in the initial state. Thereby, the sensitivity of the reed switch 90 is improved.

  That is, by applying a preliminary magnetic field + H that is weaker than the strength that triggers the on / off operation of the reed switch 90 to the reed switch 90, the first contact portion 92a and the second contact portion 93a approach each other without being in contact with each other. Therefore, the substantial sensitivity of the reed switch 90 is increased. As a result, as shown in FIGS. 4 and 6, the detectable region of the reed switch 90 in the preliminary application state becomes larger than that in the initial state. Specifically, the detectable region of the reed switch 90 in the preliminary application state extends to the front of the game board 50 and extends in a direction along the board surface of the game board 50.

  On the other hand, in the case of (B), +12 V on the second drive circuit 231 b side is applied to the coil 101. Thereby, as shown by the arrow in FIG. 13, the current −I flows from the other end side (B side) to the one end side (A side) of the coil 101, and a magnetic field corresponding to the current direction is formed. That is, a magnetic field in the direction opposite to that in the case of (A) is formed. Specifically, a magnetic field is formed in which the other end side of the coil 101 is an S pole and one end side is an N pole. Thereby, the preliminary magnetic field −H in the opposite direction is applied to the reed switch 90. Therefore, the 1st lead piece 92 and the 2nd lead piece 93 are magnetized to the opposite polarity to the case of (A). In this case, as in the case of (A), the initial application state shifts to the preliminary application state, and the first contact portion 92a and the second contact portion 93a approach each other without being in contact with each other. Thereby, the sensitivity of the reed switch 90 is improved. Therefore, the detectable region of the reed switch 90 in the preliminary application state is larger than that in the initial state.

  From the above, the direction of the current flowing through the coil 101 changes according to the combination of ON / OFF of the pMOSs 232a and 232b and the nMOSs 233a and 233b of the drive circuit 231.

  The bias circuit 230 includes a control circuit 241 that controls the operation of the drive circuit 231 in accordance with a signal from the MPU 211. The control circuit 241 is connected to the drive circuit 231 and is also connected to the MPU 211. The control circuit 241 controls the drive circuit 231 so that the coil 101 is energized based on the signal input from the MPU 211, and the direction of the current flowing through the coil 101 is determined according to the signal from the MPU 211. The drive circuit 231 is controlled so as to be switched.

  Here, a Schmitt inverter 242 is provided on a path connecting the control circuit 241 and the MPU 211. The Schmitt inverter 242 inverts the signal from the MPU 211 and outputs the inverted signal to the control circuit 241. Since the Schmitt inverter 242 has hysteresis between the threshold voltage for outputting the HI level and the threshold voltage for outputting the LOW level signal, the Schmitt inverter 242 is less susceptible to noise than a normal inverter. Thereby, noise of a signal input from the MPU 211 to the control circuit 241 is reduced.

  The control circuit 241 will be described in detail. The control circuit 241 includes a first control circuit 241a that performs switching control of the first drive circuit 231a, and a second control circuit 241b that performs switching control of the second drive circuit 231b. ing. The first control circuit 241a is connected to the first drive circuit 231a, and the second control circuit 241b is connected to the second drive circuit 231b. The first control circuit 241a and the second control circuit 241b are each connected to the MPU 211.

  Here, a Schmitt inverter 243 is further provided separately from the Schmitt inverter 242 only on the path connecting the second control circuit 241 b and the MPU 211. Specifically, the Schmitt inverter 243 is provided on a path connecting the second control circuit 241b and the Schmitt inverter 242. As a result, the signal input from the MPU 211 is inverted between the first control circuit 241a and the second control circuit 241b. Therefore, although the same signal is output from the MPU 211, the operation of the first control circuit 241a and the operation of the second control circuit 241b are different.

  The control circuits 241a and 241b will be described in detail. Here, since the second control circuit 241b has the same configuration as the first control circuit 241a, only the first control circuit 241a will be described. In the description of the first control circuit 241a below, the second control circuit 241b is described by replacing “a” in the reference numerals of the members with “b”.

  The first control circuit 241a includes an nMOS 244a that controls switching of the pMOS 232a and an nMOS 245a that controls switching of the nMOS 233a. The sources of the nMOSs 244a and 245a are grounded. The drains of the nMOSs 244a and 245a are connected to the gate of the pMOS 232a and the gate of the nMOS 233a, respectively. In this case, since the gates of the pMOS 232a and the nMOS 233a are each pulled up to + 12V, a voltage of + 12V is applied to the drains of the nMOSs 244a and 245a. The gates of the nMOSs 244a and 245a are connected to the MPU 211.

  According to the control circuit 241 configured as described above, the coil 101 is energized according to the signal from the MPU 211 and the direction of the current flowing through the coil 101 is switched. Specifically, when the LOW level signal is output from the MPU 211, the HI level signal is input to the first control circuit 241a and the LOW level signal is input to the second control circuit 241b. Then, the nMOSs 244a and 245a are turned on, while the nMOSs 244b and 245b are turned off. As a result, the condition (A) is satisfied, so that a current + I flows through the coil 101 and a + H preliminary magnetic field is applied to the reed switch 90.

  On the other hand, when the HI level signal is output from the MPU 211, the LOW level signal is input to the first control circuit 241a and the HI level signal is input to the second control circuit 241b. Then, the nMOSs 244a and 245a are turned off, while the nMOSs 244b and 245b are turned on. As a result, the condition (B) is satisfied, so that the current −I flows through the coil 101, and a −H preliminary magnetic field is applied to the reed switch 90.

  Note that the bias circuit 230 is capable of energizing the coil 101 and further switching the direction of the current flowing through the coil 101 by focusing on the point where the coil 101 is energized and the point where the current direction is switched. 231 and a control circuit 241 that controls the drive circuit 231 so as to switch the direction of the current flowing through the coil 101 in accordance with a signal from the MPU 211.

  Note that no electronic components other than the two MOSs are mounted on the energization path of the coil 101 so that a voltage is directly applied to the coil 101. Thereby, since the increase in the resistance value and the inductance on the energization path is suppressed, the delay period due to the transient phenomenon that may occur when the current flowing through the coil 101 is switched is sufficiently small.

<Processing Configuration in MPU 211 of Main Control Board 201>
Next, each control process executed by the MPU 211 of the main control board 201 will be described. The processing of the MPU 211 is roughly divided into a main processing that is started when the power is turned on, a timer interrupt processing that is started by periodically interrupting the normal processing of the main processing, and a power failure to the NMI terminal (non-maskable terminal). There is an NMI interrupt process activated by signal input. For convenience of explanation, the NMI interrupt process and the timer interrupt process will be described first, and then the main process will be described.

  FIG. 14 shows an NMI interrupt process, which is executed when the power of the pachinko machine 10 is interrupted due to the occurrence of a power failure or the like. That is, when the power of the pachinko machine 10 is cut off due to the occurrence of a power failure or the like, a power failure signal is output from the power failure monitoring board 202 to the NMI terminal of the MPU 211, and the MPU 211 interrupts the current control and performs NMI interrupt processing. To start. In the NMI interrupt process, the power failure flag is set in the power failure flag storage area in the various flag storage areas 213c of the RAM 213 in step S101, and this process ends. Thereafter, when it is confirmed that the power failure flag is set in the normal processing described later, the power failure processing is executed.

<Timer interrupt processing>
FIG. 15 is a flowchart showing timer interrupt processing. The timer interrupt process is periodically started as described above. In this case, the present embodiment is configured to be activated at a cycle of 2 msec, but this cycle is arbitrary. However, since the timer interrupt processing is set to be executed repeatedly in a short cycle such as confirmation of power interruption signal or fraud detection signal, confirmation of various winnings, etc., other processing is set. It is preferably set shorter than the repetition period of the normal process described later.

  In the timer interrupt process, first, in step S201, a signal reading process is executed. In the signal reading process, information input to the input port 211a from the ball detection sensors provided individually for the general winning port 53, the variable winning device 54, the operating port 55, and the through gate 56 is confirmed, and the confirmation result To determine whether or not there is a ball entering each ball club. Specifically, input of a signal (for example, a LOW level signal) corresponding to not detecting a game ball in any one process is confirmed, and a game ball is detected in the subsequent two processes. When the input of a signal (for example, an HI level signal) corresponding to being performed is continuously confirmed, it is specified that a game ball has entered in the entrance corresponding to the detection sensor.

  After the signal reading process is executed, the random number initial value counter CINI is updated in step S202. In subsequent step S203, the big hit random number counter C1, the big hit type counter C2, and the reach random number counter C3 are updated. Such an update corresponds to an update by the numerical information update means. Specifically, the value of each random number counter is incremented by 1 and it is determined whether or not the added value is an upper limit value. If the added value exceeds the upper limit value, the counter value is set to the initial value. Here, with respect to the jackpot random number counter C1, the value of the random number initial value counter CINI at that time is read as the initial value of the jackpot random number counter C1. Since the random number initial value counter CINI is a random value, the initial value of the jackpot random number counter C1 varies. Therefore, the timing at which the value of the jackpot random number counter C1 coincides with the winning value is different every time the jackpot random number counter C1 makes a round, so it is difficult to grasp the timing at which the value of the jackpot random number counter C1 becomes the winning value. It has become.

  Thereafter, a start winning process is executed in step S204. In the start winning process, as shown in the flowchart of FIG. 16, first, in step S301, by determining whether or not the operation port flag is stored in the operation port flag storage area in the various flag storage areas 213c of the RAM 213, It is determined whether or not the game ball has won a prize (start prize) at the operation port 55. The operating port flag is stored when winning in the operating port 55 is confirmed in the signal reading process in step S201.

  If it is determined that the game ball has won the operating opening 55, in the following step S302, is the number N of operation reserved balls of the first specific lamp unit 63 and the symbol display device 61 less than the upper limit value (4 in the present embodiment)? Determine whether or not. The process proceeds to step S303 on the condition that there is a winning at the operation port 55 and the operation reserved ball number N <4, and the operation reserved ball number N is incremented by one. Note that the operation port flag is deleted after the process of step S303. In the subsequent step S304, the values of the jackpot random number counter C1, the jackpot type counter C2 and the reach random number counter C3 stored in the lottery counter buffer 213a are stored in the first free area of the reserved ball storage area 213b of the RAM 213. Store.

  Then, after the start winning process, the MPU 211 once ends the timer interrupt process.

<Main processing>
Next, the main process that is started upon reset at power-on will be described with reference to the flowchart of FIG.

  First, in step S401, a startup process associated with power-on is executed. Specifically, in order to wait for the slave control board to be in an operable state, it waits for about 500 msec, for example.

  In the subsequent step S402, it is determined whether or not 1 sec, which is a permission prohibition period, has elapsed since the start-up process in step S401. If 1 sec has not elapsed, the process of step S402 is executed again. This time measurement is performed by counting the number of times of processing in step S402. For example, if the time required to execute the process of step S402 again after making a negative determination in step S402 is 0.1 msec, the count value is 10,000 times, so that after the startup process of step S401 It is determined that 1 sec has passed. Note that the specific configuration of time measurement is arbitrary, and for example, time measurement may be performed using a real-time clock. If it is determined in step S402 that 1 sec has elapsed, the process proceeds to step S403.

  In step S403, access to the RAM 213 is permitted. Thereafter, in step S404, it is determined whether or not the RAM erase switch 166 provided in the power supply and launch control device 163 is turned on. In subsequent step S405, it is determined whether or not the power failure flag is stored in the RAM 213. In step S406, a RAM determination value is calculated. In subsequent step S407, it is determined whether or not the RAM determination value matches the RAM determination value stored when the power is turned off, that is, the validity of the stored data is determined. The RAM determination value is a checksum value at a work area address in the RAM 213, for example. It is also possible to determine the validity of data stored and held based on whether or not the keywords written in a predetermined area of the RAM 213 are correctly stored.

  As described above, in the pachinko machine 10, when RAM data is initialized when the power is turned on, for example, at the start of business in the hall, the power is turned on while pressing the RAM erase switch 166. Therefore, if the RAM erase switch 166 is pressed, the process proceeds to steps S408 to S409. Similarly, when the information on occurrence of power shutdown is not set, or when abnormality of data stored and held is confirmed by the RAM determination value (checksum value or the like), the process proceeds to steps S408 to S409.

  In step S408, the used area of the RAM 213 is cleared to 0 (initialized), and in step S409, initialization processing of the RAM 213 is executed. Thereafter, magnetic field application processing is executed in step S410, interrupt permission is set in step S411, and the routine proceeds to normal processing.

  On the other hand, if the RAM erase switch 166 has not been pressed, a power failure is detected from the RAM 213 in step S412 on the condition that the power failure flag is stored and that the RAM judgment value (checksum value etc.) is normal. In addition to deleting the flag, the RAM determination value stored in the RAM 213 is deleted in step S413. Thereafter, magnetic field application processing is executed in step S410, interrupt permission is set in step S411, and the routine proceeds to normal processing. Thereby, it returns to the state before power-off.

  In the magnetic field application process, +12 V voltage supply to the bias circuit 230 is started and a process of outputting a HI level signal or a LOW level signal is executed. As a result, the bias circuit 230 becomes active and shifts from the initial state to the preliminary application state.

  Here, since the magnetic field application processing is executed in the main processing executed when the pachinko machine 10 is turned on, it is already in the preliminary application state when the game is started. The bias circuit 230 is always active in a power ON state (a state in which power is supplied from the external power source to the pachinko machine 10). That is, the preliminary application state is continued in the power ON state. Thereby, since the preliminary magnetic field is applied to the reed switch 90 in the power-on state, the state where the reed switch 90 is highly sensitive is maintained in a situation where a game is being performed.

<Normal processing>
Next, normal processing will be described with reference to the flowchart of FIG. The normal process is configured to be activated at a cycle of 4 msec.

  In the normal process, in step S501, a magnetic sensor monitoring process for determining whether or not a magnetic field is applied is executed.

<About magnetic sensor monitoring processing>
The magnetic sensor monitoring process will be described with reference to the flowchart of FIG. 19. First, in step S601, it is determined whether a magnetic detection signal is input. Specifically, it is determined whether or not a LOW level signal is input from the detection circuit 220.

  If a magnetic detection signal has been input, the process proceeds to step S602, and update processing of a detection counter TC that measures the detection period is executed. Specifically, a process of adding 1 to the value of the detection counter TC in the various counter areas 213d of the RAM 213 is executed.

  In a succeeding step S603, it is determined whether or not the value of the detection counter TC is “49”. If the value of the detection counter TC is not “49”, the process is terminated as it is. If the detection counter TC is “49”, the process proceeds to step S604.

  Thereafter, in step S604, the detection counter TC is cleared. Specifically, the value of the detection counter TC is set to “0”. In subsequent step S605, a magnetic detection notification process is executed. In this process, a signal indicating that magnetism has been detected is output to the management control device on the game hall side via the external terminal board 143. Thereby, the administrator can confirm that the magnetism has been detected.

  Here, the magnetic sensor monitoring process is a part of the normal process, and is executed at a cycle of 4 msec. Thus, the value of the detection counter TC being “49” means that the state in which the magnetic detection signal is input continues for 0.2 sec. That is, the magnetic detection notification process is not executed immediately when the magnetic detection signal is input, but when the magnetic detection signal is input for a predetermined detection period (0.2 sec). It is supposed to be executed. Therefore, the erroneous detection of magnetism that may occur due to the sensitivity improvement of the reed switch 90 is suppressed.

  That is, in general, the reed switch 90 may react instantaneously due to the influence of noise. The instantaneous reaction is likely to occur as the sensitivity of the reed switch 90 increases. On the other hand, since the magnetic detection notification process is executed when the input state of the magnetic detection signal has passed for a predetermined detection period (0.2 sec), the magnetic detection notification process is executed by an instantaneous reaction due to noise. Being suppressed. Thereby, the erroneous detection of the magnetism which may arise from the sensitivity improvement of the reed switch 90 is suppressed.

  Here, when performing illegal guidance of a game ball using a magnet or the like, it is necessary to apply a magnetic field over a predetermined period, so that a magnetic detection notification process is executed when a predetermined detection period has elapsed. Even in the case of the configuration, detection of fraud is not hindered. Thereby, the misdetection of the magnetism which may arise by the sensitivity improvement of the reed switch 90 can be suppressed, suppressing the fraud by a magnet etc.

  When the state in which the magnetic detection signal is input does not continue for 0.2 seconds, the value of the detection counter TC is held in an accumulated state. This makes it possible to detect fraudulent acts that intermittently apply a magnetic field.

  If no magnetic detection signal is input in step S601, the process proceeds to step S606, and processing for updating the switching counter CC in the various counter areas 213d of the RAM 213 is executed. Specifically, 1 is subtracted from the value of the switching counter CC. The switching counter CC is a timer counter that defines a period for switching the direction of the current flowing through the coil 101.

  Thereafter, in step S607, processing for determining whether or not the value of the switching counter CC is “0” is executed. When it is determined in the determination process that the value of the switching counter CC is not “0”, the present process is terminated as it is, and it is determined that the value of the switching counter CC is “0”. If YES, “1249” is stored in the switching counter CC in step S608.

  In subsequent step S609, a current direction switching process is executed. Specifically, the signal output from the MPU 211 toward the bias circuit 230 is inverted. Thereby, the direction of the current flowing through the coil 101 is switched.

  A mode of the magnetic sensor unit 81 based on the switching will be described in detail with reference to the timing chart of FIG. 20A shows the transition of the output state from the MPU 211 to the bias circuit 230, FIG. 20B shows the transition of the current flowing through the coil 101, and FIG. 20C shows the transition of the magnetic field generated from the coil 101. Is shown. The delay period of the transient phenomenon that can occur when the current flowing through the coil 101 is switched is sufficiently small with respect to the current direction switching period (5 sec), and the influence of the change in the magnetic field due to the transient phenomenon is sufficiently small. In FIG. 20, illustration is omitted.

  When a LOW level signal is output from the MPU 211, a + I current flows through the coil 101, and a + H preliminary magnetic field is generated by the current. Thereafter, when the switching counter CC becomes “0”, “1249” is set in the switching counter CC and the output from the MPU 211 is inverted.

  Then, the direction of the current flowing through the coil 101 is reversed, a current of −I flows through the coil 101, and a −H preliminary magnetic field is generated by the current. As a result, the direction of the preliminary magnetic field applied to the reed switch 90 is switched. This state is maintained until the switching counter CC becomes “0” on condition that no magnetic detection signal is input.

  Since the switching counter CC is decremented by 1 every time the normal process is executed on condition that no magnetic detection signal is input, the switching counter CC becomes “0” in a cycle of 5 sec. That is, the current direction switching process is periodically executed at a cycle of 5 sec, and the direction of the current flowing through the coil 101 is set to switch alternately every 5 sec. If attention is paid to a transient phenomenon at the time of switching, it can be said that the magnitude of the current changes at the time of the switching.

  Here, in a situation where a preliminary magnetic field formed by the coil 101 is applied, the reed switch 90 reacts sensitively to a magnetic field in the same direction as the preliminary magnetic field. On the other hand, when a magnetic field in the direction opposite to the direction of the preliminary magnetic field formed by the coil 101 is applied, both cancel each other, and as a result, the reed switch 90 is not turned on. This causes a disadvantage that the magnetic field cannot be detected even though the magnetic field is applied.

  On the other hand, according to the present embodiment, since the current direction is alternately switched, the direction of the preliminary magnetic field previously applied to the reed switch 90 is alternately switched. Thus, if the unit period is a combination of the period in which the HI level signal is output from the MPU 211 and the period in which the LOW level signal is output, the reed switch 90 has a bidirectional magnetic field orientation within the unit period. It reacts sensitively. Therefore, magnetism can be detected regardless of which magnetic field is applied. Therefore, the above inconvenience can be avoided.

  Further, when a magnetic detection signal is input, the update process of the switching counter CC is not performed. Thereby, the switching of the current direction is not executed over the period during which the magnetic detection signal is input. Therefore, the current direction is switched in a situation where the detection result indicating the magnetism is shown, and as a result, the occurrence of detection omission that is a detection result where the magnetism is not detected is suppressed.

  Returning to the description of the normal processing (FIG. 18), in step S502, the variation type counter CS is updated. In a succeeding step S502, a first specific lamp unit control process for switching the color displayed on the first specific lamp unit 63 is executed. In the first specific lamp unit control process, jackpot determination, on / off control of a light source switch of an LED lamp arranged in the first specific lamp unit 63, and the like are performed. In the first specific lamp unit control process, the symbol display device 61 also sets the first symbol variation display.

  Specifically, it is determined whether or not the jackpot is based on the value of the jackpot random number counter C1. More specifically, it is determined whether or not the value of the jackpot random number counter C1 coincides with a winning value that is a predetermined jackpot winning. Further, the type of jackpot is determined based on the value of the jackpot type counter C2 (determining whether or not it is a so-called probable big hit). Further, based on the value of the reach random number counter C3 and the value of the variation type counter CS, the switching display time of the color displayed on the first specific lamp unit 63 and the variation display time of the first symbol are determined. Each time the on-off control of the first specific lamp unit 63 is started in the first specific lamp unit control process, the number N of the operation-reserved balls is decremented, and when the operation-reserved ball number N is 0, the on-off control is performed. Does not start.

  After the first specific lamp unit control process, a special winning opening opening / closing process is executed in step S503. In the big prize opening / closing process, the big prize opening of the variable prize winning device 54 is opened or closed in the case of a big hit state. That is, it is determined whether the big winning opening is opened for each round of the big hit state, and whether the maximum opening time of the big winning opening has passed or whether a predetermined number of game balls have been won in the big winning opening. The determination as to whether or not the predetermined number has been won is made by confirming the big prize counters in the various counter areas 213d of the RAM 213. When either of these conditions is satisfied, the special winning opening is closed.

  Thereafter, in step S504, a second specific lamp unit control process for switching the color displayed on the second specific lamp unit 64 is executed. In the second specific lamp unit control process, switching of the display color in the second specific lamp unit 64 is started on the condition that a game ball has won the through gate 56. At this time, the display color switching time is also set. Further, a color to be stopped and displayed is set based on the value of the second specific lamp random number counter acquired when the game ball wins the through gate 56. When a predetermined color is set as the stop-displayed color, the electric accessory associated with the operation port 55 is released for a predetermined time after the stop display of the color.

  After step S504, a game ball launch control process is executed in step S505. In the game ball launch control process, the game ball is launched toward the game area Z once every predetermined period (for example, 0.6 sec) on condition that a launch permission signal is input from the power supply and launch control device 163. As shown, the game ball launching mechanism is driven. Specifically, the MPU 211 outputs a firing pulse signal to the power source and launch controller 163 every time a predetermined period has elapsed. Based on the input of the launch pulse signal, the power source and launch control device 163 directs the drive signal (drive voltage) obtained by amplifying the voltage of the launch pulse signal to the solenoid mounted on the game ball launch mechanism. The output of the solenoid is moved to the firing position and the storage position to control the launch of the game ball.

  Thereafter, in step S506, it is determined whether or not a power failure flag is stored in the RAM 213. If the power failure flag is not stored, the process proceeds to step S507 to determine whether or not the next normal process execution timing has been reached, that is, an interrupt criterion that is set in advance by a plurality of timer interrupt processes from the start of the previous normal process. It is determined whether or not the number of times (specifically, twice) has occurred. Specifically, the number of timer interrupts is grasped by adding 1 to the value of the interrupt counter in the various counter areas 213d of the RAM 213 every time the timer interrupt is activated, and immediately before the processing of step S501 is executed. At the timing, the counter value is cleared to 0 (initialized). If the timer interruption process has not occurred for the number of interruptions, the process proceeds to step S508.

  In step S508, the random number initial value counter CINI is updated. Specifically, the random number initial value counter CINI is incremented by 1 and cleared to 0 (initialized) when the counter value reaches the maximum value. The updated value of the random number initial value counter CINI is stored in the lottery counter buffer 213a of the RAM 213. In step S509, the variation type counter CS is updated. Specifically, the variation type counter CS is incremented by 1 and cleared (initialized) to 0 when the counter values reach the maximum value. Then, the update value of the variation type counter CS is stored in the lottery counter buffer 213a of the RAM 213.

  Thereafter, the process proceeds to step S506. Thereafter, the above-described processing is repeated from the start of the previous normal processing until the timer interrupt processing occurs for the interrupt reference count, and when the interrupt reference count is reached, the processing returns to step S501. That is, when the power failure flag is not stored, the processing from step S501 to step S505 is repeatedly executed at a cycle of 4 msec. Note that the period is not limited to 4 msec as long as the progress of the game can be well controlled.

  When the power failure flag is stored, the power failure process after step S510 is executed. That is, in step S510, the generation of the timer interrupt process is prohibited, and then the RAM determination value is calculated and stored in step S511. After the access to the RAM 213 is prohibited in step S512, the power supply is completely shut off and the process is performed. Continue infinite loop until no longer runs.

  According to the present embodiment described in detail above, the following excellent effects are obtained.

  The reed switch 90 is provided with a coil 101 capable of applying a preliminary magnetic field that is weaker than the magnetic field strength at which the reed switch 90 is turned on. Thereby, the substantial sensitivity of the reed switch 90 can be increased by energizing the coil 101 so that the preliminary magnetic field is applied to the reed switch 90. Therefore, since the detectable region of the reed switch 90 is larger than in the initial state, it is easy to detect fraud using a magnet or the like. Therefore, fraud using a magnet or the like can be suppressed.

  In particular, as shown in FIG. 6, the reed switch 90 is arranged so that the operation port 55 is included in the detectable region in the initial state from the viewpoint of suppressing direct fraud induction of the game ball to the operation port 55. In a situation, a wide area including the operation port 55 becomes a detectable area of the reed switch 90 by entering the preliminary application state. As a result, not only the operation port 55 but also a portion where the game ball is guided to the operation port 55 is included in the detectable region of the reed switch 90, so that indirect illegal induction of the game ball to the operation port 55 is also suppressed. be able to.

  Further, as the detectable area of the reed switch 90 increases, the detectable area of the reed switch 90 includes not only the operation port 55 but also a plurality of general winning ports 53, a variable winning device 54, and a through gate 56. It will be. Thereby, since the reed switch 90 can detect these surrounding magnetisms, it is possible to suppress the direct illegal guiding of the game ball to these using a magnet or the like.

  Here, fraudulent acts using a magnet are often performed by bringing the magnet closer from the front of the game board 50. In this regard, as shown in FIG. 4, the detectable region of the reed switch 90 in the preliminary application state is extended to the front of the game board 50. Thereby, it becomes easy to detect fraud using a magnet.

  The detectable regions of the reed switch 90 are formed from both ends in the longitudinal direction. Therefore, for example, when the reed switch 90 is arranged so that the longitudinal direction of the reed switch 90 is orthogonal to the direction along the board surface of the game board 50, the detectable area in the game area Z is formed from one end side of the reed switch 90. Only the detectable area.

  On the other hand, according to the present embodiment, since the reed switch 90 is arranged so that the longitudinal direction of the reed switch 90 is along the board surface of the game board 50, the detectable area in the game area Z is the reed switch 90. This is a region combining the detectable regions respectively formed from the both end sides. Thereby, since the ratio of the detectable area | region occupied to the game area | region Z becomes large, it is possible to detect magnetism over a wider area | region. Therefore, it is possible to more appropriately suppress fraud using a magnet or the like.

  In the preliminary application state, the reed switch 90 responds sensitively to a magnetic field in the same direction as the preliminary magnetic field formed by the coil 101. On the other hand, when a magnetic field in a direction opposite to the direction of the preliminary magnetic field formed by the coil 101 is applied, both cancel each other, resulting in a disadvantage that the reed switch 90 does not react.

  On the other hand, in the present embodiment, the direction of the current flowing through the coil 101 is set to be switched alternately. Accordingly, if attention is paid to a period including a period in which a positive current flows and a period in which a negative current flows as a unit period, the reed switch 90 can react sensitively to a bidirectional magnetic field. Therefore, the inconvenience can be avoided.

  In the main process performed when the pachinko machine 10 is powered on, the bias circuit 230 is set to be active, and in a situation where power is supplied to the pachinko machine 10 from an external power source, the bias circuit 230 Was set to always be active. Thereby, in the situation where a game is performed, the state where the sensitivity of the reed switch 90 is reliably increased is maintained. Therefore, the illegal induction | guidance | derivation of a game ball in the condition where the sensitivity of the reed switch 90 is not raised can be suppressed.

  The bias circuit 230 includes pMOSs 232a, 232b, and nMOSs 233a, 233b as drive circuits 231 that allow a current to flow through the coil 101 and switch the direction of the current, and to the coil 101 based on a signal from the MPU 211. NMOSs 244 a, 244 b, 245 a, 245 b and a Schmitt inverter 243 are provided as a control circuit 241 for controlling the drive circuit 231 so that the direction of the flowing current is switched. Thereby, since the current direction is switched based on the signal from the MPU 211, the switching can be controlled. That is, current direction control is possible by signal control.

  When the magnetic detection signal is continuously output for a predetermined detection period, the magnetic detection notification process is executed. Thereby, even if it is a case where the reed switch 90 reacts instantaneously with noise, a magnetic detection alerting | reporting process is not performed. Thereby, the erroneous detection of the magnetism which may arise from the malfunctioning of the reed switch 90 is suppressed.

  Here, since the period required for fraudulent induction using a magnet is generally sufficiently longer than the reaction period reacted by noise, by setting the detection period between the period required for fraudulent induction and the reaction period, Magnetic misdetection that may be caused by malfunction of the reed switch 90 can be suppressed while detecting fraudulent guidance.

  The detection period was set to be shorter than the switching interval in the current direction. Thereby, the switching of the current direction is performed in the situation where the detection result indicating the magnetism is shown, and as a result, the occurrence of the detection omission resulting in the detection result where the magnetism is not detected is suppressed.

  Further, when the magnetic detection signal is input, the update process of the switching counter CC is not executed. Thereby, the switching of the current direction is not executed over the period during which the magnetic detection signal is input. Therefore, the detection omission can be reliably prevented.

<Other embodiments>
In addition, it is not limited to the description content of embodiment mentioned above, For example, you may implement as follows. Incidentally, each of the following configurations may be applied alone to the configuration of the above embodiment, or may be applied to the configuration of the above embodiment in a predetermined combination. Moreover, you may apply each following structure to embodiment which is not illustrated as an application object of the structure.

  (1) In the above embodiment, the reed switch 90 is used as the magnetic detection means. However, the present invention is not limited to this. For example, a magnetoresistive element may be used as the magnetic detection means. In this case, the magnetoresistive element and the reference resistor may be connected in series, and a voltage divided by the magnetoresistive element and the reference resistor may be input to the + terminal of the comparator 221 of the detection circuit 220. As a result, a voltage corresponding to the resistance value of the magnetoresistive element is input to the + terminal. The resistance value of the magnetoresistive element depends on the strength of the magnetic field applied from the outside. Therefore, when an external magnetic field is applied, the voltage input to the + terminal changes as the resistance value of the magnetoresistive element changes. Thereby, since the signal input to MPU211 changes, it can recognize that magnetism is detected.

  Even in this case, the sensitivity to detect magnetism can be increased by applying a magnetic field in advance so as to approach the threshold resistance value that triggers a change in the signal input to the MPU 211.

  In the case where a magnetoresistive element is used as the magnetic detection means, it may be configured to determine whether or not a magnetic field is applied from the outside based on a change in the current value flowing through the magnetoresistive element.

  Further, for example, a Hall element may be used instead of the magnetoresistive element, or a magneto-optical element may be used. In short, any physical quantity may be used as long as a magnetic field is applied from the outside.

  (2) In the above embodiment, the pre-applied state is maintained in the situation where the power to the pachinko machine 10 is turned on. However, the present invention is not limited to this. For example, when a predetermined condition is satisfied It is good also as a structure which stops electricity supply to the coil 101 once. Thus, for example, as a predetermined condition, when the period during which the operation of the game ball launching handle 41 is not performed has elapsed for a predetermined period, the coil is not likely to be in the game area Z in the situation The energization to 101 is stopped. Therefore, while the sensitivity of the reed switch 90 can be increased in a necessary situation, power consumption can be reduced by not energizing the coil 101 in an unnecessary situation. However, in the case of the above configuration, since it is necessary to periodically determine whether or not a predetermined condition is satisfied, the pre-applied state of the coil 101 is maintained in a situation where the power to the pachinko machine 10 is turned on. The configuration is superior in terms of processing load.

  (3) In the above embodiment, the direction of the preliminary magnetic field applied to the reed switch 90 is switched by switching the direction of the current flowing through the coil 101. However, the present invention is not limited to this. For example, as shown to Fig.21 (a), it is good also as a structure which provides the 1st coil 301 and the 2nd coil 302 from which the direction through which an electric current flows differs, and switches the object supplied with electricity. In this case, for example, an nMOS 303 for controlling energization of the first coil 301 is provided, and an nMOS 304 for controlling energization of the second coil 302 is provided. When the gates of the nMOSs 303 and 304 are connected to the MPU 211, and the inverter 305 is provided only on the path connecting the gates of the nMOSs 304 and the MPU 211 so that signals input to the gates of the nMOSs 303 and 304 are different. Good. According to such a configuration, when a LOW level signal is output from the MPU 211, a current flows through the first coil 301, whereas when a HI level signal is output from the MPU 211, a current flows through the second coil 302. . Thereby, the direction of the preliminary magnetic field applied to the reed switch 90 is alternately switched by alternately switching the signal from the MPU 211. Therefore, the same effects as those of the above embodiment can be obtained, and the configuration of the bias circuit 230 can be simplified. However, since two coils are used, the above embodiment is superior from the viewpoint of simplifying the configuration of the magnetic sensor unit 81.

  In addition, as shown in FIG. 21B, a first reed switch 401 and a second reed switch 402 are provided, and the reed switches 401 and 402 are arranged opposite to each other in the longitudinal direction of the reed switch 90 with the coil 101 interposed therebetween. It is good. Thereby, when the coil 101 is energized, the magnetized polarities are reversed. Therefore, both N pole and S pole magnetism can be detected.

  In this case, the detection circuit 220 may be provided with an AND circuit that outputs a signal corresponding to a signal input from each of the reed switches 401 and 402 toward the + terminal. In this case, each input terminal of the AND circuit is preferably pulled up. As a result, when each of the reed switches 401 and 402 is in an OFF state, since the HI level signal is output from the AND circuit, the HI level signal is input to the MPU 211. On the other hand, when at least one of the reed switches 401 and 402 is turned on, since a LOW level signal is input to the + terminal, a LOW level signal is input to the MPU 211. As a result, it is possible to detect either polarity of magnetism without switching the current direction. However, since two reed switches are used, the above embodiment is superior from the viewpoint of simplifying the configuration of the magnetic sensor unit 81.

  (4) In the above embodiment, the coil 101 is used as means for applying the preliminary magnetic field to the reed switch 90. However, the present invention is not limited to this. For example, a permanent magnet may be used. In this case, the magnetic force of the permanent magnet and the distance between the permanent magnet and the reed switch 90 may be adjusted so that a reserve magnetic field having a strength that does not turn on the reed switch 90 is applied to the reed switch 90.

  In this case, when the direction of the preliminary magnetic field is switched, it is necessary to rotate the permanent magnet and switch the direction of the permanent magnet. Therefore, it is necessary to provide a mechanism for realizing the switching. On the other hand, in the above embodiment, since it is only necessary to switch the direction of the current, the above embodiment is superior in terms of simplification of the configuration.

  (5) In the above embodiment, the reed switch 90 is arranged so that the longitudinal direction thereof is along the board surface of the game board 50, but the present invention is not limited to this, and for example, the longitudinal direction is the board surface of the game board 50. The reed switch 90 may be arranged so as to be orthogonal. In this case, the detectable area of the reed switch 90 is larger in the front-rear direction of the game board 50 than when the reed switch 90 is arranged along the board surface of the game board 50. Thereby, it becomes easy to detect the magnetic field of the magnet from the front in the game board 50, and it can respond easily to the change of the thickness of the board surface of the game board 50, or the change of the game area Z in the front-back direction. However, the configuration in which the reed switch 90 is arranged so that the longitudinal direction is along the board surface of the game board 50 is superior in that the ratio of the detectable area to the game area Z is large.

  (6) In the above embodiment, when the magnetic detection signal is input, the switching counter CC is not updated. However, the present invention is not limited to this, and the switching counter is switched when the magnetic detection signal is input. It is good also as a structure which performs the update process of CC. Even in this case, since the switching interval is small with respect to the detection period, it is possible to suppress detection omission that may occur due to switching of the current direction. However, the above embodiment is superior in that it can reliably prevent detection leakage due to switching of the current direction.

In addition, as a specific structure, it is good to set it as the structure which performs the update process of the switching counter CC before execution of the determination process of whether the magnetic detection signal is input,
(7) According to the above embodiment, the bias circuit 230 is mounted on the main control board 201, and the main control board 201 is housed in the board box 123. However, the present invention is not limited to this. For example, The bias circuit 230 may be accommodated in the magnetic sensor unit 81. However, from the viewpoint of suppressing illegal acts on the bias circuit 230, a configuration in which the bias circuit 230 is mounted in the substrate box 123 is preferable.

  (8) According to the above embodiment, the reed switch 90 and the coil 101 are unitized in a state of being opposed to each other with a predetermined distance L2, but the present invention is not limited to this and is unitized. It does not have to be. However, if the distance L2 between the reed switch 90 and the coil 101 varies, the strength of the magnetic field applied to the reed switch 90 varies, so that it is possible to apply a presumed magnetic field. Is better.

  (9) In the above embodiment, the reed switch 90 is arranged around the operation port 55. However, the present invention is not limited to this. For example, the reed switch 90 may be arranged around the general winning port 53.

  (10) In the above embodiment, the magnetic detection signal is input to the main controller 122. However, the present invention is not limited to this. For example, the sound lamp controller 113 may be used, and the payout controller 162 may be used. Also good. Moreover, it is good also as a structure which a magnetic detection signal is output toward the management control apparatus of a game hall directly via the external terminal board 143.

  (11) In the above embodiment, when a magnetic detection signal is input to the MPU 211, a signal indicating that magnetism has been detected is output to the management control device on the game hall side via the external terminal plate 143. However, the present invention is not limited to this. For example, a command may be transmitted to the sound lamp control device 113 so that the symbol display device 61 displays that the magnetism has been detected. Moreover, it is good also as a structure which alert | reports not only by a display but with an audio | voice. In short, as long as it is possible to recognize that the magnetism has been detected, the manner of notification is arbitrary.

  (12) In the above embodiment, the Schmitt inverter 242 for removing noise included in the signal from the MPU 211 is provided on the path connecting the control circuit 241 and the MPU 211. However, the present invention is not limited to this. A buffer may be used. In this case, since the signal is not inverted, the direction of the current flowing through the coil 101 is reversed.

  Further, the Schmitt inverter 242 may be omitted. However, the above embodiment is superior in that it can suppress malfunction due to noise in the signal output from the MPU 211.

  (13) In the above embodiment, the bias circuit 230 is configured to be supplied with the operating voltage from the MPU 211, but is not limited thereto, and may be configured to be directly supplied from, for example, the power source and the launch control device 163. . In this case, a switching element that permits or blocks the supply of the operating voltage to the bias circuit 230 based on a signal from the MPU 211 may be provided. Thus, the operation of the bias circuit 230 can be controlled by performing on / off control of the switching element.

  (14) In the above embodiment, the main control board 201 is configured to be supplied with operating power from the power supply and launch control device 163 via the power interruption monitoring board 202. However, the present invention is not limited to this. 202 may be omitted. In this case, it is necessary to provide a circuit for monitoring the voltage on the main control board 201.

  (15) In the above embodiment, the magnetic sensor monitoring process is executed in the normal process. However, the present invention is not limited to this. For example, the magnetic sensor monitoring process may be executed in the timer interrupt process. Moreover, it is good also as a structure performed in an NMI interruption process. In short, the magnetic sensor monitoring document only needs to be set to be performed at a certain frequency.

  (16) In the above embodiment, when the state in which the magnetic detection signal is input does not continue for 0.2 seconds, the value of the detection counter TC is held in an accumulated state. The detection counter TC may be reset when the state in which the magnetic detection signal is input is not continued for 0.2 sec. In this case, it is possible to suppress erroneous detection that may occur due to accumulation of the value of the detection counter TC.

  As a specific configuration, a configuration is conceivable in which a process of resetting the detection counter TC (setting “0”) is executed when a negative determination is made in step S601.

  (17) In the above embodiment, a normally-off reed switch that is turned on when a magnetic field is applied in the off state in the natural state is used. However, the present invention is not limited to this, and the magnetic field is applied in the on state in the natural state. Alternatively, a normally-on reed switch that is turned off may be used. In this case, HI-LOW is inverted.

  (18) In the above embodiment, both the lead pieces 92a and 92b are bent by applying a magnetic field to the lead pieces 92a and 92b. However, the present invention is not limited to this. The lead piece may be fixed. Thereby, control of a contact space | interval can be performed easily.

  (19) Other types of pachinko machines different from the above embodiment, for example, a pachinko machine in which an electric accessory is released a predetermined number of times when a game ball enters a specific area of a special device, or a game ball in a specific area of a special device The present invention can also be applied to a pachinko machine that generates a right if a player enters, a pachinko machine equipped with other objects, an arrangement ball machine, a sparrow ball, and the like.

  Also, a non-ball-type gaming machine, for example, a plurality of reels with a plurality of types of symbols attached in the circumferential direction, starts rotation of the reel by inserting a medal and operating a start lever, and a stop switch is operated. Or, if a specific symbol or a combination of specific symbols is established on an active line visible from the display window after the reel has stopped after a predetermined period of time, a privilege such as paying out medals is given to the player The present invention can also be applied to a slot machine.

  In addition, a pachinko machine and a slot machine that have a take-in device and start rotation of a reel by operating a start lever after a predetermined number of game balls stored in the storage unit are taken in by the take-in device The present invention can also be applied to a gaming machine in which is integrated.

<Invention Group Extracted from the Embodiments>
Hereinafter, the features of the invention group extracted from the above-described embodiment will be described while showing effects and the like as necessary. In the following, for ease of understanding, the corresponding configuration in the above embodiment is appropriately shown in parentheses, but is not limited to the specific configuration shown in parentheses.

Features 1. Magnetic detection means (reed switch 90) for detecting magnetism;
A first output means (detection circuit 220) for outputting a predetermined detection signal when a magnetic field having a predetermined strength or more is applied to the magnetic detection means;
Input means (MPU211) for inputting the detection signal;
Second output means (MPU 211) for outputting a predetermined signal based on the detection signal being input to the input means;
Magnetic field applying means (coil 101) for applying a preliminary magnetic field, which is a magnetic field weaker than the predetermined strength, to the magnetic detection means;
A gaming machine equipped with.

  According to the feature 1, when a magnetic field having a strength higher than a predetermined value is applied to the magnetic detection unit, a detection signal is output. Based on the input of the detection signal to the input unit, a predetermined signal is output. A signal is output. Thereby, it can confirm that magnetism was detected by confirming a predetermined signal.

  Here, it is necessary for the magnetic field application means to have a predetermined strength by applying a preliminary magnetic field, which is a magnetic field weaker than a predetermined strength that triggers the output of the detection signal, to the magnetic detection means in advance. The strength of the external magnetic field is weakened. This substantially improves the sensitivity of the magnetic detection means. Therefore, since the area | region which a magnetic detection means can detect magnetism becomes large, it is easy to detect the fraud using a magnet. Therefore, fraud using a magnet or the like can be suppressed.

  Feature 2. The gaming machine according to claim 1, wherein the magnetic field applying means applies the preliminary magnetic field continuously.

  According to the feature 2, since the preliminary magnetic field is continuously applied to the magnetic detection means, the state where the sensitivity of the magnetic detection means is high is maintained. Therefore, since the state where it is easy to detect fraud using a magnet or the like is maintained, fraud using a magnet or the like can be suitably suppressed.

Feature 3. The magnetic field application means starts application of the preliminary magnetic field based on the fact that the operating power is supplied to the control means (main control board 201) for controlling the game.
3. The gaming machine according to claim 2, wherein the application of the preliminary magnetic field is continued in a state where operating power is supplied to the control means.

  According to the feature 3, the application of the magnetic field is started based on the supply of the operating power to the control means, and the application state of the magnetic field is maintained until the supply of the operating power to the control means is stopped. Thereby, in the situation where a game is performed, the sensitivity of the magnetic detection means is always increased. Therefore, the illegal act using a magnet can be suppressed in the situation where the game is performed.

  Further, since the application of the preliminary magnetic field is started by supplying the operating power to the control means, there is no need for human work for starting the magnetic field applying means. This reduces the burden on the administrator associated with applying the preliminary magnetic field.

  Further, when the control means executes a process for initializing information used when performing the control regarding the game as a step before performing the control regarding the game, the control means is based on the fact that the initializing process is performed. Thus, the application of the preliminary magnetic field may be started. Thereby, the application of the preliminary magnetic field is started at a stage before the game is performed.

  Feature 4. 4. The gaming machine according to claim 1, further comprising switching means (bias circuit 230) for alternately switching the direction of the preliminary magnetic field applied by the magnetic field applying means.

  In a situation where a preliminary magnetic field in a predetermined direction penetrates the magnetic detection means by the magnetic field application means, when a magnetic field in the opposite direction to the direction of the preliminary magnetic field by the magnetic field application means is applied to the magnetic detection means, Since both cancel each other, as a result, there is a disadvantage that magnetism is not detected.

  On the other hand, according to this feature, since the direction of the preliminary magnetic field applied to the magnetic detection unit is alternately switched, the magnetic field in any direction is applied to the magnetic detection unit. The magnetic field can be detected. Thereby, the inconvenience which may arise by applying a preliminary magnetic field can be avoided.

  Feature 5 The gaming machine according to any one of claims 1 to 4, wherein the magnetic field applying means includes a coil (coil 101) that forms a magnetic field when energized.

  According to the feature 5, a magnetic field is formed by energizing the coil. Thereby, a magnetic field can be generated by a simple method of energization.

  Regarding the relationship with the feature 4, it is preferable that “the switching means switches the direction of the current flowing through the coil alternately”. According to such a configuration, the direction of the magnetic field generated from the coil is switched by switching the direction of the current flowing through the coil. Thereby, the effect of the characteristic 4 can be produced with a simple configuration.

  A more specific configuration of the switching unit is as follows: “The switching unit allows a current to flow through the coil and switch the current direction, and the coil according to an input signal. And a control circuit that controls the driving circuit so that the direction of the current flowing through the switching circuit is switched. Thus, the direction of the current flowing through the coil can be controlled by controlling the signal input to the control circuit.

Feature 6 Control means (main control board 201) for controlling the progress of the game;
A box (substrate box 123) for accommodating the control means;
With
6. The gaming machine according to claim 4 or 5, wherein the input means, the first output means, the second output means, and the switching means are accommodated in the box.

  According to the feature 6, the input means, the first output means, the second output means, and the switching means are accommodated in the box that accommodates the control means for controlling the progress of the game. The box is generally formed by a plurality of box structures, and is further provided with fixing means for fixing the plurality of box structures and leaving a predetermined trace when the fixing is released by destruction or removal. There are many. In this case, unauthorized access to the control means can be suppressed, and unauthorized access to the input means, the first output means, the second output means, and the switching means can be suppressed.

  Feature 7. The gaming machine according to any one of claims 1 to 6, wherein the magnetic detection unit and the magnetic field application unit are unitized so as not to change a relative positional relationship with each other.

  Since the strength of the magnetic field applied to the magnetic detection means depends on the distance between the magnetic detection means and the magnetic field application means, when the distance varies, the strength of the magnetic field applied to the magnetic detection means also varies. To do.

  On the other hand, according to this feature, since the magnetic detection means and the magnetic field application means are unitized so as not to change the relative positional relationship with each other, fluctuations in the distance between the magnetic detection means and the magnetic field application means are suppressed. Has been. Thereby, the strength of the magnetic field applied to the magnetic detection means can be set to a strength assumed in advance.

Feature 8 A game board (game board 50) in which a game ball flows down, and a game area in which a ball passage portion (operating port 55) and a plurality of nails are arranged is formed on the front side;
Based on the fact that a game ball has passed through the ball passing section, a privilege granting means for granting a privilege,
With
Any one of the features 1 to 7, wherein the magnetic detection means is disposed on the back side of the game board and further includes the ball passage portion in a detectable region of the magnetic detection means. A gaming machine according to claim 1.

  According to the feature 8, since the magnetic detection means is installed on the back side of the game board, when the game ball flows through the game area, the flow is not hindered by the magnetic detection means.

  Here, since a privilege is granted based on the passing of the game ball through the ball passage portion, an illegal act of guiding the game ball to the ball passage portion using a magnet or the like may be performed. On the other hand, according to this feature, since the magnetic detection means is arranged so that the ball passage portion is included in the detectable region of the magnetic detection means, the game ball is directly guided to the ball passage portion. Can be detected.

  In particular, if the magnetic detection means is arranged so that the sphere passage part is included in the detectable region in a situation where the preliminary magnetic field is not applied, by applying the preliminary magnetic field, a wide area including the periphery of the sphere passage part can be obtained. This makes it possible to detect such a region by the magnetic detection means. As a result, it is possible to include not only the ball passing portion itself but also the portion where the game ball is guided to the detectable region of the magnetic detection means, and indirectly indirect illegal guiding of the game ball to the ball passing portion. Can be suppressed.

Feature 9 A game board in which a game ball flows down and has a plurality of ball passage portions (general winning port 53, operation port 55 and through gate 56) and a game region in which a plurality of nails are arranged (front side) Game board 50),
A privilege granting means for granting a privilege based on the fact that a game ball has passed through any of the plurality of ball passing portions;
With
The magnetic detection means is disposed on the back side of the game board so that a plurality of predetermined ball passing portions are included in a detectable region of the magnetic detection means. 8. The gaming machine according to any one of 7.

  According to the feature 9, since the magnetic detection means is installed on the back side of the game board, when the game ball flows through the game area, the flow is not hindered by the magnetic detection means.

  Here, since a privilege is given based on a game ball passing through one of a plurality of ball passage parts, an illegal act of guiding a game ball to one of a plurality of ball passage parts using a magnet or the like May be performed. On the other hand, according to this feature, since the magnetic detection means is arranged so that the predetermined plurality of sphere passing portions are included in the detectable area of the magnetic detection means, at least the detectable area of the magnetic detection means It is possible to detect direct guidance of the game ball to the ball passage included in the.

  Further, a wide area including the periphery of the sphere passing portion can be detected by the magnetic detection means depending on the size of the detectable region that can include a plurality of predetermined sphere passing portions. As a result, not only the ball passage part itself but also the part where the game ball is guided to it can be made a detectable region of the magnetic detection means, and the indirect illegal induction of the game ball to the ball passage part can be achieved. Can be suppressed.

  In particular, in a situation where the substantial sensitivity of the magnetic detection means is improved by applying the preliminary magnetic field, the detectable area of the magnetic detection means is large, and therefore, a predetermined plurality of sphere passage portions Detectable regions that can contain are easily formed.

Feature 10 The magnetic detection means includes a first magnetic body and a second magnetic body disposed at a position spaced apart from the first magnetic body by a predetermined interval, and when a magnetic field is applied, A reed switch that detects magnetism by contacting the first magnetic body and the second magnetic body;
The gaming machine according to claim 8 or 9, wherein the reed switch is arranged such that an axial direction of the reed switch is a direction along a board surface of the gaming board.

  In the reed switch, a detectable region is formed from each end in the axial direction. For this reason, when the reed switch is arranged so that the axial direction of the reed switch is perpendicular to the board surface of the game board, the detectable area occupying the game area is only the detectable area formed from one end side. It becomes.

  On the other hand, according to the present feature, the reed switch is arranged so that the axial direction of the reed switch is a direction along the board surface of the game board. In this case, the detectable area in the game area is a combination of the detectable areas formed from both ends. As a result, the detectable area in the game area is larger than in the case where the reed switch is arranged so that the axial direction of the reed switch is orthogonal to the board surface of the game board. Therefore, it becomes easier to detect fraud using a magnet. Therefore, fraud using a magnet can be suitably suppressed.

  Feature 11. 11. The gaming machine according to claim 1, wherein the second output means outputs the predetermined signal when the detection signal is output for a predetermined period. .

  The magnetic detection means may react instantaneously due to noise. In particular, it is considered that such a phenomenon is likely to occur when the sensitivity of the magnetic detection means is increased. On the other hand, in the case of fraud using a magnet or the like, the state in which the magnetic detection means has reacted for a relatively long period of time is maintained as compared with the case of noise.

  Here, according to this feature, a predetermined signal is output when a detection result indicating that magnetism is detected is maintained for a predetermined period. Thereby, even if the magnetic detection means reacts instantaneously due to the influence of noise or the like, a predetermined signal is not output. Therefore, it is possible to detect an illegal act using a magnet or the like, and it is possible to suppress erroneous detection of magnetism that may be caused by a malfunction of the magnetic detection means due to noise.

  In relation to the feature 4, it is preferable that “the switching interval by the switching unit is set longer than the predetermined period”. As a result, in response to a magnet or the like, the direction of the magnetic field is switched while the detection result indicating the detection of magnetism is shown, so that a detection result in which no magnetism is detected is obtained, and as a result, the magnetism is detected. It is possible to suppress the inconvenience that would result in a detection result of not being detected. Therefore, the effect of this feature can be obtained while ensuring the effect shown in feature 4.

  Feature 12. The gaming machine according to any one of claims 1 to 11, further comprising notification execution means for performing notification that magnetism has been detected based on the output of the predetermined signal.

  According to the feature 12, when magnetism is detected, a notification that magnetism has been detected is given. Thereby, the administrator can easily confirm that magnetism has been detected.

Feature 13. A first member (first lead piece 92) and a second member (second lead piece 93) disposed at a position spaced apart from the first member by a predetermined distance are applied with a magnetic field. In some cases, at least one of the first member and the second member is displaced, and when the first member and the second member are in contact with each other, magnetic detection means (reed switch 90) for detecting magnetism,
Input means (detection circuit 220) for inputting a detection result by the magnetic detection means;
An output means (detection circuit 220) for outputting a predetermined signal when the detection result input to the input means is a detection result indicating that magnetism is detected;
An interval adjusting means for adjusting an interval between the first member and the second member;
A gaming machine characterized by comprising:

  According to the feature 13, when a magnetic field is applied to the magnetic detection means, at least one of the first member and the second member disposed at a position separated from the first member is displaced, A 1st member and a 2nd member contact. As a result, a detection result indicating that magnetism is detected is input to the input means, and a predetermined signal is output. Therefore, it is possible to confirm whether or not magnetism has been detected by detecting the predetermined signal.

  Here, by adjusting the interval between the first member and the second member by the interval adjusting unit, the sensitivity of the magnetic detection unit depending on the interval is adjusted. Thereby, sensitivity can be improved by narrowing the space | interval of a 1st member and a 2nd member within the range which a malfunction does not produce easily. Therefore, since the magnetism detectable region in the magnetism detection means is larger than that in the case where the interval is not narrowed, it is easy to detect fraud using a magnet or the like. Therefore, fraud using a magnet or the like can be suppressed.

Feature 14. A first magnetic body (first lead piece 92) and a second magnetic body (second lead piece 93) disposed at a position spaced apart from the first magnetic body by a predetermined distance; A reed switch (reed switch 90) for detecting magnetism by contact or separation between the first magnetic body and the second magnetic body;
Input means (detection circuit 220) for inputting a detection result by the reed switch;
An output means (detection circuit 220) for outputting a predetermined signal when the detection result input to the input means is a detection result indicating that magnetism is detected;
An interval adjusting means for adjusting an interval between the first magnetic body and the second magnetic body;
A gaming machine characterized by comprising:

  According to the feature 14, by adjusting the interval between the first magnetic body and the second magnetic body by the interval adjusting means, the sensitivity of the reed switch depending on the interval is adjusted. Thereby, sensitivity can be improved by narrowing the space | interval of a 1st member and a 2nd member within the range which a malfunction does not produce easily. Therefore, since the magnetism detectable region in the reed switch is larger than the case where the interval is not narrowed, it is easy to detect fraud using a magnet or the like. Therefore, fraud using a magnet or the like can be suppressed.

Feature 15. The reed switch indicates a detection result in which magnetism is detected by contact between the first magnetic body and the second magnetic body when a magnetic field having a strength higher than a predetermined level is applied. ,
The gaming machine according to claim 2, wherein the interval adjusting means includes magnetic field applying means (coil 101) that applies a preliminary magnetic field that is weaker than the predetermined strength to the reed switch. .

  According to the feature 15, since the interval can be adjusted by a non-contact method of applying a preliminary magnetic field, compared with the case of adjusting by a contact method such as pressing the first magnetic body and the second magnetic body, There is no need to apply special treatment to the first magnetic body and the second magnetic body. Thereby, the space | interval of the existing reed switch which does not have the mechanism for adjusting space | interval can be adjusted. Therefore, the versatility of the reed switch to which the means of the present invention is applied can be ensured.

  The configurations of the features 13 to 15 may be the configurations of the embodiments (2) to (19) in the above embodiment and other embodiments, and the embodiments described below are applied. May be.

  (20) Instead of the configuration in which the preliminary magnetic field is applied so that the first lead piece 92 and the second lead piece 93 are close to each other, for example, an electromagnetic actuator or a piezoelectric actuator is used, and the first lead piece 92 and the second lead piece 93 are used. You may provide the contact-type space | interval adjustment mechanism which mutually approaches. Even in this case, the sensitivity of the reed switch 90 can be improved. However, in the case of the contact type distance adjusting mechanism, it is necessary to provide the distance adjusting mechanism in the reed switch 90 in advance. On the other hand, the non-contact distance adjustment of applying a magnetic field is superior from the viewpoint of versatility because it is not necessary to perform a process on the structure of the reed switch 90 in advance.

  (21) A relay circuit may be used in place of the reed switch 90 as the magnetic detection means. Even in this case, by applying a preliminary magnetic field that is weaker than the magnetic field necessary for the operation of the relay circuit, the contact distance of the relay circuit is narrowed, so that the same effect as the above embodiment can be obtained. it can.

  The basic configuration of various gaming machines to which the above features can be applied is shown below.

  Pachinko gaming machine: operation means operated by a player, game ball launching means for launching a game ball based on the operation of the operation means, a ball path for guiding the launched game ball to a predetermined game area, and a game A gaming machine that includes each gaming component arranged in an area, and gives a bonus to a player when a gaming ball passes through a predetermined passing portion of each gaming component.

  Revolving type gaming machine such as a slot machine: equipped with a picture display device for variably displaying a plurality of pictures, variably starting display of the plurality of pictures due to the operation of the start operation means, and due to the operation of the stop operation means Then, the variable display of the plurality of patterns is stopped, and the gaming machine gives a privilege to the player according to the pattern after the stop.

  DESCRIPTION OF SYMBOLS 10 ... Pachinko machine as a gaming machine, 81 ... Magnetic sensor unit, 90 ... Reed switch, 101 ... Coil, 122 ... Main controller, 201 ... Main control board, 211 ... MPU, 220 ... Detection circuit, 230 ... Bias circuit, 231 ... Drive circuit, 241 ... Control circuit, 243 ... Schmitt inverter.

Claims (1)

A game board in which a game ball flows down and a game region in which a ball passage portion and a plurality of nails are arranged is formed on the front side;
Based on the fact that a game ball has passed through the ball passing section, a privilege granting means for granting a privilege,
Magnetic detection means provided on the back side of the game board so as to detect magnetism, and arranged so that the ball passage portion is included in the detectable region ;
A first output means for outputting a predetermined detection signal when a magnetic field having a predetermined strength or more is applied to the magnetic detection means;
Input means for inputting the detection signal;
A second output means for outputting a predetermined signal when the detection signal is input to the input means and the detection signal is continuously output for a predetermined period ;
Magnetic field applying means for applying a preliminary magnetic field, which is a magnetic field weaker than the predetermined strength, to the magnetic detection means;
Switching means for alternately switching the direction of the preliminary magnetic field applied by the magnetic field applying means when the detection signal is not output, at a switching interval longer than the predetermined period;
A gaming machine equipped with.

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