JP2013146394A - Pinball game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pinball game machine capable of covering a proximity sensor in a wider range by a minimum radio-wave sensor.SOLUTION: A pinball game machine includes: a proximity sensor 34, etc. capable of detecting game balls passing through a prescribed site within a playfield 5a on a game board 5; and a radio-wave sensor 72 capable of detecting radio waves causing malfunction of the proximity sensor 34, etc. The proximity sensor, etc. and the radio-wave sensor are disposed on the game board 5 or on game components mounted on the game board 5. The radio-wave sensor 72 is disposed in such a state that a radio-wave detection surface thereof is inclined related to the board surface of the game board 5.

Description

  The present invention relates to a ball game machine equipped with a radio wave sensor for detecting radio waves emitted for the purpose of obtaining an illegal profit by causing a proximity sensor or the like to malfunction.

  In a ball game machine such as a pachinko machine, for example, a penetrating proximity sensor is provided to detect a game ball that has won a prize or passed through a gate corresponding to a prize hole or a gate arranged in the game area. Based on the detection of the game ball by the proximity sensor, a state advantageous to the player, such as paying out a predetermined number of prize balls and starting a symbol lottery game, occurs. This through-type proximity sensor has a detection hole through which one regular game ball can pass, and a ring-shaped detection coil that constitutes a high-frequency oscillation circuit is embedded so as to surround the detection hole. Due to the change in impedance of the detection coil when passing through the detection hole, it is possible to detect the passage of the game ball without contact.

  By the way, in recent years, fraudulent acts caused by malfunctioning by irradiating this proximity sensor with strong radio waves have become a problem. For example, the trick of fraudulent action called “Otama Goto” is as follows. That is, an iron ball slightly larger than a regular game ball (hereinafter referred to as an illegal ball) is placed in a dish and fired in the same manner as a regular game ball to be awarded a predetermined prize opening. The proximity sensor is stopped in the detection hole so that the proximity sensor is always in a detection state. Then, the proximity sensor that stops the illegal ball is irradiated with a strong radio wave of a specific frequency from outside the gaming machine, and the proximity sensor is erroneously operated so as to be in a non-detection state intermittently. This is to create a detection state similar to that in the case of continuously winning.

  As a countermeasure against fraudulent acts such as this “Otama Goto”, it is considered that a radio wave sensor (see Patent Document 1) capable of detecting the radio wave irradiated toward the proximity sensor is placed on the game board and monitored. It is done.

JP 2008-3005 A

  When radio wave sensors are arranged on a game board or the like as a countermeasure against fraud as described above, the radio wave reception range of all proximity sensors to be monitored must be within the radio wave detection range of the radio wave sensor. is there. However, there are cases where the radio wave sensor cannot be placed at the best position due to various restrictions, and the increase in the number of radio wave sensors or the use of radio wave sensors with a wide radio wave detection area increases the cost. There is a demand for efficiently arranging the sensors.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a ball game machine capable of covering a wider range of proximity sensors with a minimum radio wave sensor.

  The present invention provides proximity sensors 34, 38, 45, 50, 58, 64a to 64c capable of detecting a game ball that has passed a predetermined part in the game area 5a on the game board 5, and the proximity sensors 34, 38, 45. , 50, 58, 64a to 64c in a ball game machine in which a radio wave sensor 72 capable of detecting a radio wave causing malfunction is arranged on the game board 5 or the game component 19 mounted on the game board 5. The radio wave sensor 72 is arranged such that the radio wave detection surfaces 80 a and 80 b are inclined with respect to the board surface of the game board 5.

  The radio wave detection surfaces 80a and 80b may be provided on an outer surface substantially parallel to the antenna 77 disposed inside the radio wave sensor 72.

  Further, the magnetic sensor 71 may be disposed in the vicinity of the radio wave sensor 72, and for example, the magnetic sensor 71 and the radio wave sensor 72 may be mounted via a common sensor holder 73.

  According to the present invention, since the radio wave detection area of the radio wave sensor 72 becomes wider on or near the game board 5 on which the proximity sensor is arranged, the radio wave sensor 72 with the minimum area covers a wider range of proximity sensors. It becomes possible to do.

1 is an overall front view of a pachinko machine showing an embodiment of the present invention. It is a front view of the game board in the pachinko machine. It is a principal part front view of the back case and fraud prevention sensor unit in the pachinko machine. It is side sectional drawing of the right normal winning means in the same pachinko machine, and its vicinity. It is a side sectional view of the upper and lower start winning means, the big winning means and the vicinity thereof in the pachinko machine. It is side sectional drawing of the 1st normal winning means in the pachinko machine, and its vicinity. It is a plane sectional view of the fraud prevention sensor unit and its vicinity in the pachinko machine. It is a disassembled perspective view of the fraud prevention sensor unit in the pachinko machine. It is a perspective view of the radio wave sensor in the pachinko machine. It is a figure which shows the detection area distribution with respect to the radio wave of the predetermined level in the XZ plane (FIG. 9) of the radio wave sensor in the pachinko machine. Detection area distribution of each radio wave sensor and each proximity sensor when the radio wave sensor is disposed obliquely with respect to the game board as in the present embodiment (a) and when the radio wave sensor is disposed straight with respect to the game board (b) It is a figure which shows the relationship with the unauthorized radio wave reception range. It is a block diagram of the control system in the pachinko machine which shows one Embodiment of this invention. It is a principal part front view of the game board which shows the modification of this invention. It is a figure which shows the relationship between the detection area distribution of the radio wave sensor in the AA cross section of FIG. 13, and the unauthorized radio wave reception range of each proximity sensor.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1-12 has illustrated one Embodiment which employ | adopted this invention for the pachinko machine. In FIG. 1, a gaming machine main body 1 is an inner frame that is pivotally attached to a rectangular outer frame 2 and a left and right side of the outer frame 2, for example, a left hinge 3 so as to be openable and detachable around a longitudinal axis. And a frame 4.

  The game board 5 shown in FIG. 2 is arranged on the upper side of the inner frame 4 and the launching means (not shown) is arranged on the lower side. The game board 5 is located on the front side of the inner frame 4. A glass door 6 that covers the front side, and a lower opening / closing door 7 that covers the front side of the launching unit and the like below the glass door 6 are pivotally mounted by a hinge 8 on the same side as the hinge 3 so as to be openable and detachable. The glass door 6 is provided with a glass window 9 corresponding to the game area 5a on the game board 5 side, and the lower opening / closing door 7 has a storage tray 10 for storing game balls to be supplied to the launching means, and launching means. A firing handle 11 or the like is provided for operating the.

  On the front side of the game board 5, as shown in FIG. 2, a guide rail 12 for guiding a game ball fired by the launching means is arranged in a substantially annular shape, and in the game area 5a in the guide rail 12, The gaming parts such as the central display unit 13, the gate unit 14, the start winning port unit 15, the big winning port unit 16, and the normal winning port unit 17 are detachably mounted. Further, as shown in FIG. 3 and the like, a back case 19 that holds a liquid crystal type and other image display means 18, a fraud prevention sensor unit 20, and the like are mounted on the back side of the game board 5.

  The guide rail 12 is formed of a metal plate, for example, and is erected on the front side of the game board 5. The guide rail 12 is arranged such that the outer rail 12a and the inner rail 12b inside thereof partially overlap inside and outside, and the guide rail 12 is fired by the launching means between the outer rail 12a and the inner rail 12b. A launch guide passage 21 for guiding the game ball to the game area 5a is formed.

  The central display unit 13 constitutes a display frame of the image display means 18 disposed substantially at the center of the game area 5a, and is detachable from the front side in a display frame mounting hole 5b (FIG. 4) provided in the game board 5. It is fixed to the game board 5 by screwing or the like, and in addition to the display window 22 at the approximate center, normal symbol display means 23, special symbol display means 24, normal reserved number display means 25, special reserved number display Various display means such as means 26, stage 27, right normal winning means 28, etc. are provided.

  Further, as shown in FIGS. 3 and 7, the back case 19 is formed in a substantially box shape whose front side is open, and a rectangular opening 29 corresponding to the display screen 18a of the image display means 18 is formed in the approximate center thereof. It is attached to the back side of the game board 5 so as to substantially cover the rear side of the central display unit 13 and the like, and is attached to the game board 5 by screwing or the like at the hook-shaped fixing portion 19a integrally provided on the front end side thereof. It is fixed. The image display means 18 constitutes the effect symbol display means 30 and the like, and is detachably fixed to the back side of the back case 19 with the display screen 18 a aligned with the opening 29.

  The stage 27 is arranged in a horizontally long shape below the display window 22 on the central display unit 13, and a game ball that has entered a stage entrance 31 provided on one of the left and right sides, for example, the left side of the central display unit 13. It is allowed to fall from the center or its left and right falling parts by playing in the left-right direction.

  The right normal winning means 28 is disposed, for example, at the lower right end of the central display unit 13, and as shown in FIGS. 2 to 4, a right normal winning opening 32 that opens upward in the game area 5a, A rear guide passage 33 in the substantially front-rear direction that guides the game ball won in the normal winning port 32 to the rear side of the game board 5 and the proximity for detecting the game ball won in the right normal winning port 32 (passed through a predetermined part). Sensor 34.

  The proximity sensor 34 has a substantially circular detection hole 35 formed in a diameter (for example, about 12 mm) through which a regular game ball (diameter 11 mm) can pass, for example, at one end side thereof, and forms a high-frequency oscillation circuit. The detection coil is incorporated so as to surround the detection hole 35, and the passage of the game ball can be detected by the impedance change of the detection coil when the game ball passes through the detection hole 35. Note that all other proximity sensors described later have the same configuration as that of the proximity sensor 34.

  The proximity sensor 34 of the right normal winning means 28 is disposed, for example, on the downstream end side of the rear guide passage 33, and detects the game ball won in the right normal winning port 32 on the rear side of the game board 5. Yes. If it is determined based on the detection signal from the proximity sensor 34 that the game ball has won the right normal winning opening 32, a predetermined number of winning balls are paid out for each winning.

  The gate unit 14 normally constitutes the symbol starting means 36. For example, on the left side of the central display unit 13, the gate unit 14 is detachably attached to the gate unit mounting hole (not shown) provided in the game board 5 from the front side, for example. It is fixed to the game board 5 by screws or the like. As shown in FIG. 2, the normal symbol starting means 36 includes a normal symbol starting gate 37 arranged in the vertical direction in the game area 5a, and a proximity sensor 38 for detecting a game ball passing through the normal symbol starting gate 37. It consists of The normal symbol start gate 37 is for starting the symbol variation by the normal symbol display means 23, and it is determined that the game ball has passed through the normal symbol start gate 37 based on the detection signal from the proximity sensor 38. The normal symbol display by the normal symbol display means 23 starts to be changed.

  The normal symbol display means 23 is composed of, for example, two light emitters (for example, LEDs) corresponding to two types of normal symbols “O” and “X”, and the game ball passes through the normal symbol start gate 37. When the two light emitters blink alternately for a predetermined time on the condition, and the hit determination random number value acquired when the game ball is detected by the proximity sensor 38 of the normal symbol start gate 37 matches the predetermined hit determination value So that the “○” side illuminant corresponding to the hit state emits light, and in other cases, the “×” side illuminant corresponding to the disengagement state emits light and the blinking ends. It has become.

  Further, when the game ball passes through the normal symbol starting gate 37 during the fluctuation display of the normal symbol display means 23 or in the normal profit state described later, a hit determination random number value acquired at the time of the passing is determined in advance. The maximum number of reserved numbers, for example, 4 is stored as a limit, and the number of light emitting units for which the normal number-of-holds display means 25 made of the same number of light emitters as the maximum number of reserved numbers for example is stored according to the number of light emission (hereinafter referred to as the number of normal reserved numbers) ) Is displayed to inform the player of the number of normally reserved items at that time.

  The start winning port unit 15 is detachably mounted from the front side to the starting winning port unit mounting hole 5c provided in the game board 5, for example, below the central display unit 13, and is attached to the game board 5 by screwing or the like. The upper start winning means 41 and the lower start winning means 42 are provided vertically.

  The upper start winning means 41 is a non-actuated winning means having no opening and closing means, and as shown in FIGS. 2, 3 and 5, an upper start winning opening 43 that opens upward in the game area 5a, Detect a game ball that has won a prize in the upper start winning port 43 and a rear guide passage 44 in the substantially front-rear direction for guiding the game ball won in the upper start winning port 43 to the rear side of the game board 5, and a game ball that has won the upper start winning port 43 (passed through a predetermined part) The proximity sensor 45 is provided. The proximity sensor 45 is disposed, for example, on the downstream end side of the rear guide passage 44 and detects a game ball won in the upper start winning opening 43 on the rear side of the game board 5.

  The lower start winning means 42 is an openable and closable actuating winning means. As shown in FIGS. 2, 3 and 5, the lower start winning means 42 is a pair that opens to the left and right sides below the upper start winning prize port 43. A lower start winning opening 46, a pair of left and right opening / closing wings 47 capable of switching the lower starting winning opening 46 between, for example, a closed state in which a game ball cannot be won and an open state in which a winning can be easily made, Opening / closing drive means 48 including an electromagnetic solenoid for driving, a rear guide passage 49 in a substantially front-rear direction for guiding a game ball won in the lower start prize opening 46 to the rear side of the game board 5, and a prize in the lower start prize opening 46 And a proximity sensor 50 that detects the game ball that has been played, and when the normal symbol display means 23 changes to the stop symbol and the normal profit state occurs, the opening / closing blade is driven by the opening / closing driving means 48. 47 is open for a predetermined time It is adapted to changes in the state. The proximity sensor 50 is disposed, for example, on the downstream end side of the rear guide passage 49, and detects the game ball won in the lower start winning opening 46 on the rear side of the game board 5.

  Both the upper start winning means 41 and the lower start winning means 42 are for starting the symbol variation by the special symbol display means 24, and the game ball is started up and down based on the detection signals from the proximity sensors 45 and 50. On the condition that it is determined that one of the winning openings 43, 46 has been won, the special symbol display means 24 starts to display the variation of the special symbol, and a predetermined number of prize balls are paid out for each winning prize. It has become.

  The special symbol display means 24 is composed of one or a plurality of display means, for example, a seven-segment type display means capable of displaying one special symbol in a variable manner. The special symbol is variably displayed for a predetermined time on the condition that a prize is awarded to any of the winning prizes 46, and the jackpot determination random number obtained when winning the upper starting prize winning opening 43 or the lower starting winning prize slot 46 is a predetermined jackpot When it coincides with the judgment value, it is stopped in a predetermined jackpot mode, and in other cases, it is stopped in a disengagement mode.

  The special symbol is not a numerical symbol, for example, but is composed of a plurality of types of symbols and combinations of lines and points that have no special meaning as such, and one or more of those symbols are jackpots, Other than that, it is set to the detachment mode. In addition, when a game ball is won in the upper start winning opening 43 or the lower starting winning opening 46 during the special symbol fluctuation display or in the special profit state described later, a jackpot determination random number value acquired at the time of winning is obtained. A predetermined upper limit reserved number, for example, four is stored as a limit, and for example, the special reserved number display means 26 made up of the same number of light emitters as the upper limit reserved number is used to store the number of jackpot determination random number values (hereinafter referred to as a special number). The number of reserved items) is displayed, and the special number of reserved items at that time is notified to the player.

  During the special symbol variation display by the special symbol display means 24, for example, the effect symbol display effect 30 is performed by the effect symbol display means 30. The effect symbol display means 30 is configured such that one or a plurality of effect symbols, for example, three effect symbols in the left-right direction can be variably displayed together with various effect images. The design symbols are stopped in a predetermined order, such as left, right, and middle, so that the symbols are started to be changed and finally stopped at the same time as the special symbols are stopped. The effect symbol display means 30 may perform an effect that is not directly related to the variation content of the special symbol.

  The big prize opening unit 16 is, for example, detachably attached from the front side to the big prize opening unit attachment hole 5d provided in the game board 5 on the lower side of the start prize opening unit 15, and is secured by screwing or the like. And is provided with a big winning means 51.

  The big winning means 51 is an actuable winning means that can be opened and closed. As shown in FIGS. 2, 3, and 5, for example, a big winning opening 53 formed in a front opening at a position on the front side of the game board 5. And an open / close driving means 55 comprising an open / close plate 54 capable of switching between a closed state in which the game ball can not be won and an open state in which the winning ball can be easily won, and an electromagnetic solenoid or the like for driving the open / close plate 54. A winning room 57 that accepts the game balls won in the big prize opening 53 and drops them down from the winning ball discharge outlet 56 on the rear side of the game board 5, and the proximity to detect the gaming balls won in the big prize opening 53 Sensor 58, and when the special symbol display means 24 changes and the stop symbol after the change becomes a big hit mode and a special profit state occurs, the opening and closing drive means 55 drives the opening and closing plate 54 according to a predetermined pattern. Change to state There.

  The proximity sensor 58 is disposed, for example, at the downstream end side of the winning room 57, that is, at the winning ball discharge port 56, and detects the game ball won at the big winning port 53 on the rear side of the game board 5. . When it is determined that the game ball has won the big prize opening 53 based on the detection signal from the proximity sensor 58, a predetermined number of prize balls are paid out for each winning.

  The normal winning opening unit 17 is arranged along the inner side of the inner rail 12b on the left side of the large winning unit 16, for example, and a plurality of, for example, three first to third normal winning means 61a to 61a are arranged along the longitudinal direction. 61c are arranged in a line from the upper side to the lower side. The normal winning port unit 17 is detachably mounted from the front side with respect to a normal winning port unit mounting hole 5e provided in the game board 5, and is fixed to the game board 5 by screwing or the like.

  As shown in FIGS. 2, 3 and 6, the first to third ordinary winning means 61 a to 61 c include first to third ordinary winning openings 62 a to 62 c that open upward in the game area 5 a, ˜Proximity sensors 64a to 64c that detect game balls that have won (passed through a predetermined portion) in the third ordinary winning holes 62a to 62c. The proximity sensors 64a to 64c are arranged on the rear end side of the rear guide passage 63 that guides the game balls won in the first to third normal winning ports 62a to 62c to the rear side of the game board 5, respectively. A game ball won in the third ordinary winning holes 62a to 62c is detected on the rear side of the game board 5.

  When it is determined that the game ball has won the first to third ordinary winning ports 62a to 62c based on the detection signals from the proximity sensors 64a to 64c, the first to third ordinary for each winning. A predetermined number of prize balls set for each of the winning openings 62a to 62c are paid out. If two or more of the first to third normal winning holes 62a to 62c are set to the same number of payout balls, the game balls won in these winning holes are detected by a common proximity sensor. You may do it.

  The fraud prevention sensor unit 20 holds the magnetic sensor 71, the radio wave sensor 72, and the magnetic sensor 71 and the radio wave sensor 72 on the rear side of the game board 5, for example, as shown in FIGS. It comprises a sensor holder 73.

  The magnetic sensor 71 is for detecting the magnetism when a strong magnet is pressed against the front side of the glass window 9, and as shown in FIG. 8, for example, a connection terminal 74 is provided at one end side in the longitudinal direction. It is formed in a substantially rectangular parallelepiped shape and is configured to output a magnetic detection signal from the connection terminal 74 to, for example, the main control board 75 via a predetermined signal line. The magnetic sensor 71 is configured such that the detection distance on the front side in the longitudinal direction is longer than the detection distance on the side orthogonal to the longitudinal direction, that is, the detection sensitivity is higher on the tip surface side than on the side surface side. It is configured. By arranging this magnetic sensor 71 on or near the game board 5, for example, when trying to guide an illegal ball to a predetermined winning opening using a magnet at the time of “large ball goto”, at that time It is possible to detect cheating.

  The radio wave sensor 72 is for detecting radio waves illegally irradiated so as to cause a malfunction of the proximity sensor. As shown in FIG. 9, for example, a case body 76 formed in a flat, substantially rectangular parallelepiped shape, A printed circuit board 78 in which a radio wave detection circuit including an antenna 77 is formed, housed in the case body 76, and a connection terminal 79 mounted on the printed circuit board 78 and disposed on one end in the longitudinal direction of the case body 76, for example. And a radio wave detection signal is output from the connection terminal 79 to, for example, the main control board 75 via a predetermined signal line.

  In the radio wave sensor 72, for example, both front and back surfaces of the case body 76 are radio wave detection surfaces 80a and 80b, and the printed circuit board 78 is parallel (or substantially parallel) between the pair of radio wave detection surfaces 80a and 80b. The antenna 77 is formed as a ring-shaped copper foil pattern on one surface side. That is, the radio wave detection surfaces 80 a and 80 b are provided on the outer surface parallel to the antenna 77 in the radio wave sensor 72.

  FIG. 10 shows the case where the center of the antenna 77 of the radio wave sensor 72 is the origin, the Z axis is in the longitudinal direction of the radio wave sensor 72, and the X axis is in the direction perpendicular to the radio wave detection surfaces 80a and 80b (see FIG. 9). The detection area distribution with respect to the radio wave of the predetermined level of the radio wave sensor 72 on the XZ plane is shown. As can be seen from FIG. 10, the distribution of the detection area on the XZ plane of the radio wave sensor 72 is four substantially symmetric balloons that swell toward each quadrant with the origin at the center. And the shape is constricted to the origin side on the Z axis.

  A range in which a predetermined proximity sensor can malfunction due to a predetermined level of radio waves (eg, a spherical region with a predetermined radius centered on the proximity sensor as shown in FIG. 11; hereinafter referred to as “illegal radio wave reception range”) If all the detection areas corresponding to the predetermined level by the sensor 72 are included, the radio wave sensor 72 can reliably detect the radio wave illegally emitted so as to cause the proximity sensor to malfunction. The sensor is protected from fraudulent acts caused by radio wave irradiation.

  In the present embodiment, among all the proximity sensors arranged on the game board 5, each proximity sensor corresponding to the right normal winning means 28, the upper start winning means 41, and the first to third normal winning means 61a to 61c. 34, 45, 64a to 64c are targets to be protected at a minimum by the radio wave sensor 72 (hereinafter, the proximity sensors 34, 45, 64a to 64c are referred to as protection target sensors). The normal symbol starting means 36 is not accompanied by payout of a winning ball, and the lower starting winning means 42 and the big winning means 51 are software so that the detection of winning in a closed state in which a game ball cannot be won is ignored. In this embodiment, the proximity sensors 38, 50, and 58 corresponding to them are not necessarily protected by the radio wave sensor 72. Of course, it is desirable to arrange the radio wave sensor 72 so that the proximity sensors 38, 50, and 58 are under the protection of the radio wave sensor 72 as much as possible. In the present embodiment, the protection target sensors 34, 45, 64 a to 64 c are all disposed in the vicinity of the back side of the game board 5 with the detection holes 35 facing up and down.

  As shown in FIGS. 7 and 8, the sensor holder 73 includes a magnetic sensor holding portion 81 that holds the magnetic sensor 71 and a radio wave sensor holding portion 82 that holds the radio wave sensor 72. Corresponding to the rear side (an example of a game part to which the radio wave sensor 72 is attached) 19 is attached to the front side of the back case 19 by screwing or the like, and the base body 83 is detachably attached. It is comprised with the holding body 84. FIG.

  For example, the holding body 84 is integrally provided with a hook-shaped fulcrum engaging portion 85 at one end in the left-right direction and an engaging claw 86 at the other end, and the fulcrum engaging portion 85 is provided on the base body 83 side. In a state where the fulcrum engaged portion 87 is engaged from the front side, the fulcrum engaged portion 87 is swung backward with respect to the fulcrum, and the engaging claw 86 on the other end side is engaged with the locking portion 88 on the base body 83 side. Thus, the base body 83 is detachably fixed to the front side.

  The magnetic sensor holding portion 81 is provided on the holding body 84, for example, and a front opening 81a for exposing the front end surface of the magnetic sensor 71 at the front end is connected to the connection terminal 74 of the magnetic sensor 71 at the rear end. The rear opening 81b for pulling out the harness to be pulled out is formed in a square tube shape in the front-rear direction, and the magnetic sensor 71 is positioned at, for example, the front end surface thereof abutting or approaching the back surface of the game board 5 It comes to hold in. The magnetic sensor 71 can be attached to and detached from the magnetic sensor holding portion 81 on the holding body 84 via the rear opening 81b on the rear side in a state where the holding body 84 is detached from the base body 83.

  The radio wave sensor holding part 82 is constituted by, for example, a front holding part 82a on the holding body 84 side and a rear holding part 82b on the base body 83 side, and is arranged so as to be close to, for example, one of the left and right sides of the magnetic sensor holding part 81. When the holding body 84 is attached to the base body 83, the radio wave sensor 72 is held by being sandwiched between the front holding part 82a and the rear holding part 82b from the side of the radio wave detection surfaces 80a and 80b, respectively.

  In addition, the radio wave sensor holding unit 82 moves the radio wave sensor 72 to the following positions and positions so that all of the unauthorized radio wave reception ranges of the protection target sensors 34, 45, 64 a to 64 c are included in the detection area by the radio wave sensor 72. It is designed to hold in a posture.

  First, the holding position of the radio wave sensor 72 by the radio wave sensor holding unit 82 is preferably an intermediate position between the protection target sensors 34, 45, 64a to 64c in all of the vertical direction, the horizontal direction, and the front-back direction. If the ideal position cannot be arranged due to various restrictions, the position should be as close as possible. In the present embodiment, the vertical position of the radio wave sensor 72 is a position close to the middle between the uppermost protection target sensor 64a and the lowermost protection target sensor 64c among the protection target sensors 34, 45, 64a to 64c. Yes, the position of the radio wave sensor 72 in the front-rear direction is a position in the vicinity of the back side of the game board 5 that is substantially the same as all the protection target sensors 34, 45, 64a to 64c. A position displaced to the left larger than the intermediate position between the leftmost protection target sensor 64a and the rightmost protection target sensor 34 due to restrictions on arrangement to avoid interference with other parts (not shown), ie, protection It is in the vicinity of the target sensor 64b.

  Next, the holding posture of the radio wave sensor 72 by the radio wave sensor holding unit 82 will be described. As described above, the XZ plane when the center of the antenna 77 of the radio wave sensor 72 is the origin, the Z axis is the longitudinal direction of the radio wave sensor 72, and the X axis is the direction perpendicular to the radio wave detection surfaces 80a and 80b. As shown in FIG. 10, the detection area distribution of the radio wave sensor 72 on the top is four substantially symmetric balloons that swell toward each quadrant with the origin at the center, and are on the origin side on the X axis and the Z axis. It has a constricted shape. Referring to this detection area distribution, on the X-Z plane, the direction in which the width of the detection area is the largest with the origin as the center is the direction substantially in the middle between the X axis and the Z axis, that is, the X axis or the Z axis. The direction is about ± 45 degrees (hereinafter referred to as “maximum detection width direction”). In the present embodiment, the largest distance between the radio wave sensor 72 and the protection target sensors 34, 45, 64a to 64c is the left-right direction among the up-down direction, the left-right direction, and the front-rear direction.

  Therefore, in the present embodiment, the direction of the radio wave detection surfaces 80a and 80b of the radio wave sensor 72 is set so that the maximum detection width direction of the radio wave sensor 72 substantially coincides with the left-right direction, that is, as shown in FIGS. The holding posture of the radio wave sensor 72 by the radio wave sensor holding portion 82 is set so that the tilt angle is approximately 45 degrees in the horizontal plane with respect to the board surface of the game board 5. Thereby, for example, compared with the case where the radio wave sensor 72 is arranged so that the direction of the radio wave detection surfaces 80a and 80b is parallel to the board surface of the game board 5 (FIG. 11B), the game using the same radio wave sensor 72 is used. A wider range on the board 5 can be covered.

  In the case of this embodiment, assuming that the radio wave sensor 72 is arranged so that the direction of the radio wave detection surfaces 80a and 80b is parallel to the board surface of the game board 5, the proximity sensor 34 is illegal as shown in FIG. A part of the radio wave reception range (shaded part) is out of the detection area of the radio wave sensor 72, but the radio wave detection surfaces 80a and 80b are oriented so that the direction of the radio wave detection surfaces 80a and 80b is inclined approximately 45 degrees in the horizontal plane with respect to the board surface of the game board 5. By arranging the sensor 72, the illegal radio wave reception ranges of all the protection target sensors 34, 45, 64a to 64c including the proximity sensor 34 are within the detection area of the radio wave sensor 72 as shown in FIG. Is in the range.

  Next, a configuration for monitoring an illegal winning by a large ball goto etc. in the control system of the pachinko machine will be described. In the main control board 75 of the present embodiment, as shown in FIG. 12, a winning processing means 91 for performing processing related to winning of game balls to each winning means 28, 41, 42, 51, 61a to 61c, and a normal symbol Symbol processing means 92 that performs processing related to symbol variation of the display means 23 and the special symbol display means 24, and an accessory processing that performs processing related to the operations of the opening / closing blades 47 of the lower start winning prize means 42, the opening / closing plate 54 of the big prize winning means 51, etc. Means 93 are provided. Further, for example, the winning processing means 91 is provided with an abnormality monitoring means 94 for monitoring an abnormality with a high probability of fraud based on detection signals from the magnetic sensor 71 and the radio wave sensor 72.

  The winning processing means 91 is based on the detection signals from the proximity sensors 34, 45, 50, 58, 64a to 64c corresponding to the winning means 28, 41, 42, 51, 61a to 61c. , 42, 51, 61a to 61c is determined whether or not a game ball has been won in the winning openings 32, 43, 46, 53, 62a to 62c, and if it is determined that there has been a win, a prize ball is paid out, etc. The winning process is executed. In this winning process, with respect to the lower start winning means 42 and the big winning means 51 which are actuated winning means, the proximity sensors 50 and 58 detect the winning when the game ball is in a closed state where the winning is impossible. Ignore it. As a result, if the proximity sensor 58 malfunctions due to unauthorized radio wave irradiation and a winning detection signal is generated even though the big winning means 51 etc. are not open, the winning detection signal is ignored and illegal. No prize ball will be paid out to the actor.

  The symbol processing means 92 executes normal symbol variation processing by the normal symbol display means 23 based on the proximity sensor 38 of the normal symbol starting means 36 detecting a game ball, and also the proximity sensor of the upper starting prize winning means 41. The special symbol display means 24 performs a special symbol variation process based on the proximity sensor 50 of 45 or the lower start winning opening 46 detecting a game ball.

  The accessory processing means 93 opens the lower start winning means 42 in a predetermined pattern when the stop symbol after the fluctuation of the normal symbol display means 23 is hit and a normal profit state occurs, and also displays a special symbol display. The special winning means 51 is opened in a predetermined pattern when the stop symbol after the change of the means 24 becomes a big hit mode and a special profit state occurs.

  The abnormality monitoring unit 94 performs predetermined error processing such as error display on the image display unit 18, error warning sound when a magnetic detection signal is received from the magnetic sensor 71 and a radio wave detection signal is received from the radio wave sensor 72. , An error notification by an error signal output from an external output terminal, etc., and a process of stopping the payout process are executed.

  With such a configuration, for example, when a so-called large ball goto is executed, if an attempt is made to guide a wrong ball to a winning opening such as the right normal winning means 28 using a magnet, the magnetic detection from the magnetic sensor 71 at that time is performed. Error processing is performed by the abnormality monitoring means 94 that has received the signal, and damage can be prevented beforehand.

  Also, even when the illegal ball is not guided by the magnet, when the illegal ball is stopped by the proximity sensor such as the right normal winning means 28 and the strong switch is irradiated with the illegal ball, Since the radio wave is detected by the radio wave sensor 72 and the error processing is executed by the abnormality monitoring means 94 that has received the radio wave detection signal from the radio wave sensor 72, damage due to large goto can be prevented in advance.

  As mentioned above, although embodiment of this invention was explained in full detail, this invention is not limited to these embodiment, A various change is possible in the range which does not deviate from the meaning of this invention. For example, as shown in FIG. 9, when the Z axis is taken in the longitudinal direction of the radio wave sensor 72, the X axis is taken in the direction of the radio wave detection surfaces 80a and 80b, and the Y axis is taken in a direction orthogonal to them, The example in which the radio wave sensor 72 is arranged so that the plane is substantially horizontal is shown. However, if the X axis is directed in a predetermined oblique direction that is neither parallel nor perpendicular to the board surface of the game board 5, the Y axis and the Z axis The direction of is arbitrary.

  Therefore, for example, as shown in FIGS. 13 and 14, the protection target sensors (proximity sensors 34 and 64 a to 64 c in the examples of FIGS. 13 and 14) are arranged substantially in a row in an oblique direction. The radio wave sensor 72 is arranged so that the X axis of the radio wave sensor 72 is inclined with respect to the game board 5 and, for example, the XZ plane is substantially parallel to the arrangement direction of the protection target sensors 34, 64a to 64c. May be.

  In the embodiment, an example in which only one radio wave sensor 72 is mounted is shown, but a plurality of radio wave sensors 72 may be mounted. Further, the number of magnetic sensors 71 is also arbitrary. The radio wave sensor 72 may be mounted on, for example, a prize opening unit to which a proximity sensor is mounted, or may be mounted to a central display unit or the like that is not mounted with a proximity sensor. The radio wave sensor 72 should be set on the game board 5 because its position should be set in accordance with the arrangement of the proximity sensors. For example, the radio wave sensor 72 is placed on the inner frame 4 other than the game board 5, for example. It is also possible to do.

  In the embodiment, an example of a radio wave sensor having directivity on both the front and back sides is shown, but a radio wave sensor having directivity only on one side is also arranged on the game board 5 by being disposed obliquely with respect to the game board 5. The point that the detection area becomes wide is the same.

  In addition, although pachinko gaming machine was illustrated in embodiment, it cannot be overemphasized that it can implement similarly in other ball game machines, such as an arrangement ball machine and a sparrow ball game machine.

5 Game board 5a Game area 19 Back case (game parts)
34 proximity sensor 38 proximity sensor 45 proximity sensor 50 proximity sensor 58 proximity sensor 64a to 64c proximity sensor 71 magnetic sensor 72 radio wave sensor 73 sensor holder 77 antenna 80a radio wave detection surface 80b radio wave detection surface

Claims (4)

A proximity sensor capable of detecting a game ball that has passed a predetermined part in a game area on the game board, and a radio wave sensor capable of detecting a radio wave that causes a malfunction of the proximity sensor are provided on the game board or the game board. In the ball game machine arranged on a mounted game part, the radio wave sensor is arranged such that the direction of the radio wave detection surface is inclined with respect to the board surface of the game board Machine. The ball game machine according to claim 1, wherein the radio wave detection surface is provided on an outer surface substantially parallel to an antenna disposed inside the radio wave sensor. The ball game machine according to claim 1, wherein a magnetic sensor is disposed in the vicinity of the radio wave sensor. 4. The ball game machine according to claim 3, wherein the magnetic sensor and the radio wave sensor are mounted via a common sensor holder.

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