JP2010119672A - Game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a game machine in which an illegal behavior by a magnet can be inexpensively detected and the presence of a magnetic sensor is not noticed. <P>SOLUTION: A game board 12 includes a transparent plate 21 and a back unit. In the transparent plate 21, a starting prize winning device 27 is provided. In the transparent plate 21, a plurality of game nails 30 forming guide paths 31 and 32 are studded which can guide Pachinko balls toward the starting prize winning device 27. In the transparent plate 21, in a lower side of the lower guide path 32, side decorative parts 34 having a plurality of ordinary prize winning ports 33 formed is provided. In the back unit, the magnetic sensor 44 is provided so as to be hidden in the back side of the side decorative parts 34. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a gaming machine provided with a start winning device that gives a start condition of symbol variation by a symbol display device in response to winning of a game ball.

  A pachinko machine, which is a typical gaming machine, has a decorative member arranged in a game area defined on a board surface of a gaming board set in the machine, and is arranged on the back side of the machine in an opening formed in the decorative member. A start winning device is provided in the game area so that the display unit of a liquid crystal type or drum type symbol display device is exposed, and a start condition for symbol variation by the symbol display device is given. Then, based on the winning of the pachinko ball to the start winning device, a symbol combination game or reach effect is performed on the symbol display device, and when a predetermined symbol is stopped and displayed on the display unit, a big hit gaming state is generated. As a result, players have the chance to win many prize balls.

  In the pachinko machine, the player is playing a game with an expectation for winning the start prize device, but if the probability that a pachinko ball flowing down the game area will flow toward the start prize device is low, The expectation of the person will also be lowered and you will be bored as a pachinko machine. Therefore, by using the game nails planted in the game board, a pachinko ball that flows down the game area can be guided to the start winning device with a high probability of guiding so that the player's expectation can be maintained. A slingshot machine has been proposed.

  Here, at the pachinko game hall, a “got action by magnet” in which a pachinko ball that flows down the game area with a magnet close to the glass surface of the pachinko machine is directly guided to the start winning device or collected at a predetermined place. Cheating, sometimes referred to as For example, the guideway is provided with a drop opening for adjusting the probability of a pachinko ball to be guided to the starting prize-winning device, but a large number of pachinko balls are collected on the guide path by a magnet and the drop opening is intentionally blocked. By doing so, there is a risk that fraudulent acts that increase the probability of pachinko balls being guided to the start winning device will be performed.

For example, in the pachinko machine disclosed in Patent Document 1, when a magnetic sensor is arranged on the back side of a game board or a collective bowl and the magnet is brought close to the glass surface in order to carry out the fraud, the magnet The anti-tampering measures such as stopping the ball hitting device by detecting the magnetism of the sensor with a magnetic sensor.
Japanese Patent Laid-Open No. 60-40078

  In the pachinko machine of Patent Document 1, since a magnetic sensor is attached to the back side of the game board or the collective bowl, the magnetism of the magnet close to the glass surface is taken into consideration in consideration of the thickness of the game board or the collective bowl. A high-performance magnetic sensor that can be detected is required, which increases the cost. In addition, since the magnetic sensor protrudes rearward from the game board or the collective bowl, it is pointed out that there are difficulties such as obstructing the mounting of other members or requiring additional parts for protecting the magnetic sensor.

  In addition, it is conceivable that a magnetic sensor with low detection sensitivity can be used by inserting a magnetic sensor into a through hole provided in the game board so as to shorten the distance between the magnetic sensor and the glass surface. . However, in this case, the player can see the magnetic sensor, which not only deteriorates the appearance, but also reveals the position of the magnetic sensor to the fraudulent person, so that fraud is performed to avoid the magnetic sensor. There is a fear.

  That is, the present invention has been proposed to solve this problem in view of the above-described problems inherent in the gaming machine according to the prior art, and is capable of detecting fraudulent acts caused by magnets at a low cost. It is an object of the present invention to provide a gaming machine in which the existence of the game is not known.

In order to overcome the above-mentioned problems and achieve the intended purpose, the invention according to claim 1 of the present application provides:
A game board (12) in which a game area (12a) is defined on the front side, and a display unit arranged on the back side of the game board (12) and capable of variably displaying symbols are provided on the game board (12). The symbol display device (14) that can be viewed from the front side through the visible portion, and the game balls arranged on the game board (12) and flowing down the game area (12a) can win, and the game balls can be won. As a trigger, a start winning device (27) that gives a start condition of symbol variation by the symbol display device (14), and a game ball that is implanted in the game board (12) and directed toward the start winning device (27). And a plurality of game nails (30) forming a guide path (31, 32) having a drop opening (31a, 32a) into which a game ball can drop toward the out opening (36) In the machine
The game board (12) includes a transparent plate (21) in which the game area (12a) is defined on the front side and the start winning device (27) and the game nail (30) are provided, and the transparent plate (21 ), And the symbol display device (14) comprises a back unit (22) disposed on the back side,
At a position facing the lower side of the guide path (32) between the transparent plate (21) and the back unit (22), the magnetic sensor (44) is placed close to the transparent plate (21) with the detection unit (44a). Arranged,
The transparent plate (21) is provided with a component (34) for hiding the magnetic sensor (44) from the front side invisible.

  According to the first aspect of the present invention, since the game board is constituted by the transparent board and the back unit, the thickness of the transparent board defining the game area is less than that of the game board formed of a single piece such as a plywood board. The thickness can be reduced by the unit, and the separation distance between the magnetic sensor disposed between the transparent plate and the back unit and the front surface of the transparent plate can be shortened. That is, it becomes possible to use a magnetic sensor with low detection sensitivity, and cost can be reduced. Further, by hiding the magnetic sensor by the parts arranged on the transparent plate, the player is not informed of the presence of the magnetic sensor, and illegal acts can be suppressed without impairing the decoration. Furthermore, since the magnetic sensor is arranged between the transparent plate and the back unit, the magnetic sensor does not protrude behind the game board, and the magnetic sensor is an obstacle to the mounting of other members, or there are parts to protect. It is not necessary separately.

In the invention according to claim 2, the part that hides the magnetic sensor (44) is a decorative part (34) that forms a normal winning opening (33) through which the game ball flowing down the game area (12a) can win. This is the gist.
According to the invention of claim 2, since the part that hides the magnetic sensor is a decorative part that forms the normal winning opening, there is no need to separately provide a part for hiding the magnetic sensor, reducing the number of parts and reducing the cost. It can be reduced.

In the invention according to claim 3, the transparent plate (21) is provided with a plurality of normal winning openings (33, 33) in the game area (12a) facing the lower side of the guide path (32). The gist is that the detection unit (44a) of the magnetic sensor (44) is arranged so as to face between the adjacent normal winning openings (33, 33) on the back side of (21).
According to the invention of claim 3, the magnetism of the magnet brought close to illegally win the game ball directly to the normal winning opening by allowing the detection unit of the magnetic sensor to face between the adjacent normal winning openings, It is possible to detect fraud by detecting with the magnetic sensor.

In the invention according to claim 4, the transparent plate (21) is provided on the back side of the transparent plate (21) with the discharge bowl (41) for discharging and guiding the game balls won in the normal winning opening (33), and the transparent plate (21). The ball discharge path member (43) that guides and discharges the game balls won in the other winning openings is arranged so as to overlap in the front and rear, and the relay arranged behind the ball discharge path member (43) located on the rear side The magnetic sensor (44) that is connected to the terminal plate (47) and extends forward is held by holding portions (48, 41c) provided on the ball discharge path member (43) and the discharge rod (41), respectively. The summary is as follows.
According to the fourth aspect of the present invention, the discharge rod and the ball are disposed so as to overlap the front and rear of the magnetic sensor connected to the relay terminal plate disposed at a position spaced rearward from the transparent plate and extending forward. It can hold | maintain with each holding | maintenance part of a discharge path member, and can position the detection part of this magnetic sensor stably in an appropriate position with respect to a transparent plate. In addition, since the discharge basket and the ball discharge path member are components for discharging and guiding the game ball, a dedicated member for positioning and holding the magnetic sensor can be omitted to reduce the number of parts and reduce the cost. It can be kept low.

  According to the gaming machine according to the present invention, it is possible to detect fraudulent acts by magnets at low cost and to prevent the presence of a magnetic sensor from being known.

  Next, the gaming machine according to the present invention will be described in detail below with reference to the accompanying drawings by giving a preferred embodiment. In the embodiment, a pachinko machine that plays a game using a pachinko ball as a game ball will be described as an example. Further, in the following description, “front”, “rear”, “left”, and “right” are states when the pachinko machine is viewed from the front side (player side) as shown in FIG. 1 unless otherwise specified. It points at.

(About pachinko machines)
As shown in FIG. 1, the pachinko machine 10 according to the embodiment is formed in a rectangular frame shape, and a game board 12 can be attached to and detached from an opening front side of an outer frame 11 installed on an installation frame base (not shown) of a game store. The middle frame 13 held in the box is assembled so as to be openable and detachable, so that the symbol display device 14 capable of variably displaying various symbols can be attached to and detached from the back side of the game board 12. A front frame 15 provided with a glass plate 15a for seeing through and protecting the game board 12 is assembled on the front side of the middle frame 13 so that it can be opened and closed, and pachinko balls are stored below the front frame 15. The lower ball tray 16 is assembled so that it can be opened and closed. In the embodiment, an upper ball tray 17 for storing pachinko balls is integrally assembled at a lower position of the front frame 15, and the upper ball tray 17 is also integrated with the opening and closing of the front frame 15. Configured to open and close.

(About the middle frame)
As shown in FIG. 2, the middle frame 13 includes an upper frame member 13a forming an upper edge, a lower frame member 13b forming a lower edge, a left frame member 13c forming a left edge, and a right frame member forming a right edge. The upper and lower frame members 13a, 13b, 13c, and 13d are formed into a rectangular frame shape that aligns with the opening of the outer frame 11 when assembled. And the opening part opened to the front and rear when the said frame member 13a, 13b, 13c, 13d of the upper and lower sides and right and left functions as the game board holding | maintenance part 18 which installs the said game board 12. FIG.

  As shown in FIG. 2, on the inner side of the opening of the left frame member 13c (on the side of the game board holding portion 18), the left end portion of the game board 12 is rotatably and detachably held at a position spaced vertically. A plurality of holders 19 (two in the embodiment, but may be one or three or more) are provided, and at the right end (on the right frame member 13d side) of the upper and lower frame members 13a and 13b, Fixtures 20 for fixing the upper right and lower ends of the right side of the game board 12 are provided. That is, the game board 12 faces the game board holding portion 18 obliquely from the front side with respect to the middle frame 13, and the left end portion of the game board 12 faces the rotary holders 19, 19. In this state, the right end portion of the game board 12 is pushed in and rotated around the left end portions (rotating holders 19 and 19) of the game board 12 so that the entire game board 12 is moved to the game board holding section 18. In this state, the upper and lower ends of the right side of the game board 12 are supported by the fixtures 20 and 20 from the front side. The game board 12 assembled to the middle frame 13 has the rotating holders 19 and 19 and the fixtures in a state in which the rear surface of the peripheral edge is in contact with and supported by the upper and lower and left frame members 13a, 13b and 13c. The front surface of the corresponding part is abutted and supported at 20 and 20, and movement in the front-rear direction is restricted. In this state, the front surface of the game board 12 (the front surface of a transparent plate 21 described later) is separated from the glass plate 15a of the front frame 15 assembled to the middle frame 13 by a preset distance. It is configured to face the position (see FIG. 8).

(About game board)
As shown in FIG. 3 or 4, the game board 12 includes a flat transparent plate 21 made of a light-transmitting synthetic resin material such as acrylic or polycarbonate, and a back side of the transparent plate 21. The rear unit 22 is assembled to the rear unit 22. The symbol display device 14 capable of variably displaying various symbols is detachably attached to the back side of the back unit 22, and a visible display portion 22 a (see FIG. 6) that opens at the front and rear formed in the back unit 22. ) Through which the display unit of the symbol display device 14 can be viewed from the front side.

(About transparent plate)
As shown in FIG. 3, an inner rail 23 and an outer rail 24 are arranged in a semicircular arc shape on the front surface of the transparent plate 21, and a game area 12 a in which a pachinko ball can flow down by both rails 23, 24 is transparent. A pachinko ball defined on the front surface of the board and launched from a not-shown hitting ball launcher is launched into the game area 12a. The inner rail 23 is configured so that the open end faces the upper part on the left side of the transparent plate 21, and the pachinko balls launched from the ball striking device are moved from the lower side to the left side of the transparent plate 21 by both rails 23, 24. Guided and driven from the open end of the inner rail 23 to the upper part of the game area 12a.

  In the transparent plate 21, corner decorations 25 made of a non-transparent synthetic resin material that covers the area from the front surface are provided in areas outside the outer rail 24. As shown in FIG. 3, each corner decoration 25 has an inner peripheral surface facing the game area 12 a that is curved along the outer rail 24. That is, the game board 12 of the embodiment is configured such that the back side can be visually recognized through the transparent plate 21 in almost all regions except the portion where the corner decoration 25 is disposed.

  On the front surface of the transparent plate 21, a decorative member 26 formed in a frame shape surrounding a region where a symbol variation game is mainly developed in the symbol display device 14 is disposed. In addition, on the front surface of the transparent plate 21, a start winning device 27 and a second winning device 27 that can win a pachinko ball flowing down the game area 12a, as shown in FIGS. One special prize-winning device 28 is provided. When the pachinko ball wins the start winning device 27, the control means (not shown) is given a start condition of the symbol variation game on the symbol display device 14, and the symbol is based on the control signal from the control means. A symbol variation game is developed on the display device 14. As a result of the symbol variation game, when the symbols are stopped and displayed on the symbol display device 14 with a predetermined symbol combination, the opening / closing plate 28a of the first special winning device 28 is operated from the closed state to the open state. The winning opening is opened and a so-called jackpot is generated, so that a large number of prize balls can be obtained.

  As shown in FIG. 3, the start winning device 27 is provided with two winning holes 27a and 27b in the upper and lower stages, and the upper winning hole 27a in the upper stage is formed as a mere opening that always opens and allows winning. On the other hand, the lower winning opening 27b in the lower stage is opened and closed by a pair of openable and closable blade members 27c and 27c. Only when the members 27c and 27c are operated in the open state, the lower prize opening 27b is opened and can be awarded.

  On the front surface of the transparent plate 21, a ball passage gate 29 through which a pachinko ball flowing down the game area 12a can pass is provided in the game area 12a facing the left side of the decorative member 26. When the pachinko ball passing through the gate 29 is detected, the ball passing gate 29 outputs a normal symbol ball detecting means for outputting a ball detection signal that triggers a variation display of a normal symbol in a normal symbol display device (not shown). (Not shown) is provided. The normal symbol entry detecting means is electrically connected to the control means, and the control means starts on the condition that the normal symbol entry detecting means detects a pachinko ball passing through the ball passage gate 29. It is set to perform a lottery on whether or not to open the blade members 27c, 27c of the winning device 27.

(About taxiway)
A plurality of game nails 30 are planted in the game area 12 a of the transparent plate 21, and the flow direction of the pachinko balls flowing down the game area 12 a is changed by the game nails 30. Guidance paths 31 and 32 that can guide pachinko balls toward the start winning device 27 by the game nail 30 are formed in the game areas 12a on both the left and right sides of the start winning device 27. The configuration of the left and right guide paths 31, 32 is the same as that shown in FIG. 3 except that the lengths of the flow paths are different. Therefore, only the configuration of the left guide paths 31, 32 will be described.

  The guide paths 31 and 32 are formed in two upper and lower stages, and the upper guide path 31 follows a line that inclines the plurality of game nails 30 obliquely downward toward the top winning port 27a of the start winning device 27. The pachinko ball formed by being implanted in the transparent plate 21 and flowing down along the upper guide path 31 is configured to be guided toward the upper winning opening 27a. The lower guide path 32 is formed by planting a plurality of game nails 30 on the transparent plate 21 along a line inclined obliquely downward toward the lower prize opening 27b of the start winning device 27, and the lower guide path The pachinko ball that flows down along the direction 32 is configured to be guided toward the lower prize opening 27b. The upper and lower guide paths 31 and 32 are provided with a plurality of drop openings 31a and 32a in the middle of the flow path for dropping pachinko balls flowing down along the guide paths 31 and 32 to the outside of the guide path. The drop probabilities 31a and 32a adjust the guidance probabilities to the upper and lower prize winning openings 27a and 27b.

  The transparent plate 21 is provided with normal winning openings 33 on both the left and right sides of the first special winning device 28 at a position below the lower guide path 32. In the embodiment, one ordinary winning opening 33 is positioned on the right side, whereas three ordinary winning holes 33 are arranged on the left side in a step shape substantially along the lower guide path 32. A plurality of game nails 30 are also planted in the game area 12a between the lower guideway 32 and each normal winning port 33 to adjust the winning probability of the pachinko ball to each normal winning port 33. The

  The upper two normal winning openings 33, 33 located on the left side are formed in a side decorative part (decorative part) 34 disposed on the transparent plate 21. The side decorative component 34 is an opaque member having a required decoration on the front surface side, and is screwed in a state of being inserted from the front side into a mounting hole 21a (see FIG. 8) formed in the transparent plate 21. It has been stopped. Further, the lower left normal winning opening 33 and the right ordinary winning opening 33 are center decorations arranged on the transparent plate 21 so as to surround the first special winning device 28 from the lower side. A part 35 is formed. The central decorative part 35 is also an opaque member having a required decoration on the front side, and is screwed in a state where it is inserted from the front side into an attachment hole (not shown) formed in the transparent plate 21. Stopped.

  At the bottom of the game area 12a, the pachinko ball that has flowed down without winning the start winning device 27, the first and second special winning devices 28, 39, and the respective normal winning ports 33 is discharged to the back of the machine. A mouth 36 is formed.

(About decorative members)
The decorative member 26 is screwed into the mounting hole (not shown) provided in the transparent plate 21 while being inserted from the front side, and the opening of the symbol display device 14 is provided through an opening 26a provided at a substantially central position. The display unit is configured to be visible from the front side of the game board 12. A hook part extending forward is formed on the upper edge of the decorative member 26, and a pachinko ball launched into the game area 12a flows down across the area where the symbol variation game is developed in the symbol display device 14. It is comprised so that it may control with this collar part. In the embodiment, the region corresponding to the opening 26 a of the decorative member 26 is the visible portion of the game board 12 that allows the display unit of the symbol display device 14 to be viewed from the front side.

  As shown in FIGS. 1 and 3, a stage 37 capable of rolling a pachinko ball taken in the frame to the left and right is disposed at the lower edge of the decorative member 26. The pachinko balls discharged to the area 12a are configured to be able to win the start winning device 27, the normal winning port 33, and the like. In addition, a ball guide portion 38 (so-called warp passage) through which a pachinko ball flowing down the game area 12a can be inserted is provided on the left frame portion 26b located on the left side of the stage 37 in the decorative member 26. The pachinko ball that has entered 38 is guided to the left end side of the stage 37.

  A second special prize device 39 including a single blade member 39a that is opened and closed by a driving means such as an electromagnetic solenoid (not shown) disposed on the back side is disposed above the left frame portion 26b of the decorative member 26. Has been. As a result of the symbol variation game developed by the symbol display device 14 based on the winning of the pachinko ball to the start winning device 27, the second special prize winning device 39 has a predetermined symbol combination (first combination) When the symbol is stopped and displayed by a combination of the special winning device 28 and the opening / closing plate 28a being opened), the blade member 39a is operated from the closed state to the open state to receive a winning port (other winning ports). ), A so-called jackpot is generated, and a large number of prize balls can be obtained. In addition, a ball passage member (not shown) that communicates with the winning opening of the second special winning device 39 is disposed along the opening 26a on the back side of the left frame portion 26b. The pachinko ball is configured to guide a ball discharge path member 43 described later.

(About the back unit)
As shown in FIG. 4 or FIG. 6, the back unit 22 has a box-shaped frame-shaped main body 40 that is formed of a synthetic resin material that cannot be seen through (for example, ABS resin) and opens to the front side. The visible display portion 22a is formed in a rectangular shape at approximately the center position of 40. At the front ends of the upper, lower, left, and right sides of the frame-shaped main body 40, flange portions 40a extending in parallel with the transparent plate 21 are formed outwardly. The frame-shaped main body 40 including the flange portions 40a includes the flange portions 40a. The entire outer shape is formed in a size and shape substantially matching with the transparent plate 21. The transparent plate 21 is disposed in a state where the back surface is in contact with the front surfaces of the upper and lower and left and right flange portions 40a of the frame-shaped main body 40, and a required space is provided between the rear surface of the transparent plate 21 and the frame-shaped main body 40. It is configured to define a space. And various parts, such as a decoration and a movable body, are accommodated in the space between the transparent plate 21 and the frame-shaped main body 40.

  In the game board 12 composed of the transparent plate 21 and the back unit 22, the portion where the flange portion 40a of the back unit 22 and the transparent plate 21 come into contact with the frame members 13a, 13b, 13c of the middle frame 13 and the rotation holding. It is comprised so that it may be clamped with the tool 19 and the fixing tool 20. FIG. That is, the combined thickness of the flange portion 40a and the transparent plate 21 is the same as the thickness of a single game board made of conventional plywood or the like, so that the inner frame 13 can be used in common with the conventional product. It has become.

(About magnetic sensors)
In the back unit 22, a collective discharge rod for discharging and guiding the pachinko balls won in the three normal winning holes 33 located on the left side at a position corresponding to the arrangement position of the side decorative component 34 on the transparent plate 21 ( A discharge basket 41) is provided. As shown in FIGS. 5 to 7, the collective discharge rod 41 is formed in a bowl shape opened to the front side, and has three receiving portions 41 a extending in the vertical direction corresponding to the respective normal winning holes 33. A pachinko ball that is in communication with the three receiving portions 41a at the lower end and inclined downward in the right direction, and the pachinko balls that have passed through the receiving portions 41a are located below the game board 12 via the collecting portions 41b. Configured to be discharged.

  A decorative member 42 formed in a required shape is detachably disposed on the collective discharge rod 41, and a part of the decorative member 42 is visible from the front side through the transparent plate 21. Yes. In addition, a ball discharge path member 43 communicating with the ball path member is detachably disposed on the back side of the collective discharge rod 41. As shown in FIGS. 6 and 7, the ball discharge path member 43 is composed of a front half 43a and a rear half 43b that can be divided into front and rear, and the front half 43a is screwed to the collective discharge rod 41 from the back side. The rear half 43b is screwed to the front half 43a from the back side. Then, by assembling both halves 43a and 43b, a path for discharging and guiding the pachinko ball flowing down the ball path member below the game board 12 is defined.

  A magnetic sensor 44 for detecting an illegal act by an external magnet is disposed on the collective discharge basket 41, the decoration member 42, and the ball discharge path member 43. As shown in FIGS. 7 and 8, the magnetic sensor 44 includes a main body 45 formed in the shape of a prism that is long in the front-rear direction and provided with a magnetic element (not shown) therein, and a rear end of the main body 45 It is basically composed of a connector 46 disposed in the section. The connection port of the connector 46 is opened rearward, and the connector 46 is inserted and connected to a connector connection part (not shown) provided on the relay terminal plate 47 disposed in the back unit 22 through the connection port. The magnetic sensor 44 is electrically connected to the control means. A main body 45 extending forward from the relay terminal plate 47 is disposed so as to be supported by the collective discharge rod 41, the decoration member 42, and the ball discharge path member 43, and a detection unit at the front end of the main body 45 44a is brought close to the back surface of the transparent plate 21. In addition, as a magnetic element, what can detect magnetism, such as a Hall element and a magnetoresistive element, can be appropriately employed.

  As shown in FIGS. 7 and 8, the main body 45 of the magnetic sensor 44 is provided with a stepped portion 45a at a rear end upper portion thereof that is lowered by a predetermined height from the upper surface of the main body. Further, an extending portion 45 b extending downward is provided on the front side of the position where the connector 46 is provided in the main body 45.

  As shown in FIGS. 7 and 8, a support opening 42a through which the main body 45 of the magnetic sensor 44 can be inserted is provided in the front-rear direction at a position where the decorative member 42 faces the back side of the side decorative component 34 and is hidden from the front side. It is formed through. In addition, a concave portion (holding portion) 41c for supporting the main body 45 of the magnetic sensor 44 from the lower side is formed in the collective discharge rod 41 facing the rear of the support port portion 42a. Further, the ball discharge path member 43 is formed with a holding portion 48 capable of positioning and holding the rear portion of the magnetic sensor 44 at a position facing the rear of the concave portion 41 c, and the rear portion is held by the holding portion 48. A main body portion extending forward from the ball discharge path member 43 in the magnetic sensor 44 is supported from below by the concave portion 41c and is inserted and supported by the support port portion 42a, so that the detection portion 44a is attached to the transparent plate 21. It is configured to be held in an appropriate position. As shown in FIG. 5, the support port portion 42a of the decorative member 42 is positioned in the vicinity of a fixing portion where the decorative member 42 is screwed to the collective discharge rod 41, and is inserted into the support port portion 42a. The front end of the magnetic sensor 44 can be stably supported. Further, as shown in FIG. 3, the detection unit 44 a of the magnetic sensor 44 faces the rear side of the side decorative component 34 positioned between the normal winning openings 33 and 33 adjacent in the left-right direction.

  The holding portion 48 of the ball discharge path member 43 includes a front holding portion 49 formed on the front half side and a rear holding portion 50 provided on the rear half side. As shown in FIGS. 7 and 8, the front holding portion 49 has a front through-hole portion 49a into which the main body 45 of the magnetic sensor 44 can be inserted, and a front recess 49 that is recessed below the front through-hole portion 49a and opens rearward. When the main body 45 of the magnetic sensor 44 is inserted into the front through hole 49a from the rear side, the front surface of the extending portion 45b comes into contact with the front restricting portion 49b. It is configured to restrict forward movement. The front portion of the main body 45 is inserted into and supported by the support opening portion 42a of the decorative member 42 at a position where the extension portion 45b is in contact with the front restriction portion 49b and restricted, and the detection portion 44a is formed on the transparent plate 21. It is positioned at a position that substantially contacts the back surface.

  As shown in FIGS. 7 and 8, the rear holding portion 50 formed in the latter half body 43b includes a rear through hole portion 50a through which the connector 46 of the magnetic sensor 44 can be inserted, and a lower portion above the rear through hole portion 50a. A rear regulating portion 50b projecting toward the side, and when the connector 46 of the magnetic sensor 44 is inserted into the rear through hole portion 50a from the front side, the stepped portion 45a abuts on the rear regulating portion 50b. The magnetic sensor 44 is configured to be sandwiched and held between the front half 43a and the rear half 43b. That is, the magnetic sensor 44 is positioned and fixed by assembling the latter half body 43b to the front half body 43a, and a screw or the like for positioning and fixing the magnetic sensor 44 can be omitted.

(Effects of Example)
Next, the operation of the pachinko machine according to the above-described embodiment will be described.

  The pachinko ball launched into the game area 12 a flows down the irregular flow path mainly through the game area 12 a on the left side of the decorative member 26 by the plurality of game nails 30. Then, when the pachinko balls flowing down the game area 12a enter the ball guiding portion 38, the pachinko balls are passed through the stage 37, and after rolling the stage 37 to the left and right, are discharged to the game area 12a. This pachinko ball can be awarded to the top winning port 27a and the normal winning port 33 of the start winning device 27. Pachinko balls that did not win any of the winning openings 27a, 33 are discharged from the out opening 36 to the back of the board.

  Pachinko balls that have not entered the ball guiding portion 38 reach the inclined upper ends of the upper and lower guiding paths 31 and 32 on the left side. Then, the pachinko balls introduced into the upper guide path 31 are guided toward the upper winning opening 27a of the start winning device 27, and can be won in the upper winning opening 27a. Further, the pachinko ball introduced into the lower guide path 32 is guided toward the lower winning opening 27b of the start winning device 27. If the blade members 27c and 27c are in the closed state, the pachinko ball cannot be won in the lower winning opening 27b. Therefore, the pachinko ball guided by the lower guide path 32 passes the game area 12a to the lowest end. It flows down and is discharged from the out port 36 to the back side of the panel. Since the upper and lower guide paths 31, 32 are formed with a plurality of drop openings 31a, 32a, all the pachinko balls guided by the guide paths 31, 32 reach the upper and lower winning openings 27a, 27b. It is not guided and falls outside the road from the drop openings 31a and 32a in the middle of guidance. However, there is a possibility that the pachinko ball dropped from the drop port 31 a of the upper guide path 31 is guided toward the lower prize port 27 b of the start winning device 27 by the lower guide path 32.

  Pachinko balls that have dropped from the drop port 32 a of the lower guide path 32 flow down irregularly by the game nail 30, and can enter the plurality of normal winning ports 33. Further, pachinko balls that have not won the normal winning opening 33 are discharged from the out opening 36 to the back side of the board.

  When the pachinko ball flowing down the left game area 12a passes through the ball passage gate 29, the normal symbol display device performs a lottery based on the ball detection by the normal symbol entry detecting means. If the winning is determined as a result of the lottery, the blade members 27c and 27c of the start winning device 27 are opened, and the winning probability to the lower winning port 27b is increased. When a pachinko ball wins the winning hole 27a, 27b above or below the start winning device 27, the symbols on the symbol display device 14 start to fluctuate based on the control signal of the control means, and the required symbol combination game is played. Be expanded. When a symbol is stopped and displayed in a predetermined symbol combination on the symbol display device 14 as a result of the symbol variation game developed on the symbol display device 14, the opening / closing plate 28a of the first special winning device 28 or By operating the blade member 39a of the second special winning device 39 from the closed state to the open state, the winning opening is opened, so-called big hit occurs, and a large number of winning balls can be obtained.

  Here, on the lower side of the guide paths 31 and 32 located on the lower side of the left region of the decorative member 26 where the pachinko balls launched into the game area 12a mainly flow down, a plurality of ordinary winning holes 33 and Since there are a plurality of game nails 30 for adjusting the winning probability of the pachinko ball to the normal winning opening 33, the region has a structure that is easy to clog the pachinko ball. For this reason, the lower part of the lower guideway 31 is formed on the glass plate for the purpose of blocking the fall openings 31a, 32a of the upper and lower guideways 31, 32 by an unauthorized player who intends to cheat. It is easy to perform an action of bringing the magnet close to 15a and collecting the pachinko balls below the drop opening 31a so as to clog the pachinko balls between the game nail 30 and the side decorative part 34. In this case, since the magnetic sensor 44 is disposed on the back side of the side decorative part 34 that forms the normal winning opening 33 (see FIG. 3), the glass plate facing the lower side of the lower guide path 31. When a magnet is brought close to 15a, the magnetic force of the magnet is detected by the magnetic sensor 44, and it can be found that an illegal act is being performed.

  In addition, when an illegal act of closing the drop openings 31a, 32a of the guide paths 31, 32 with a pachinko ball is made, the winning probability to the start winning device 27 is abnormally increased. Can know. For this reason, the illegal player may perform an act of illegally earning a winning ball by directly winning a pachinko ball in the normal winning opening 33 using a magnet. However, since the detection unit 44a of the magnetic sensor 44 is close to the normal winning holes 33, 33, the magnet close to the glass plate 15a to illegally win pachinko balls directly to the normal winning holes 33, 33. The magnetic sensor 44 can also detect the magnetic field. In other words, the magnetic sensor 44 of the embodiment detects both an action for illegally increasing the induction probability of the pachinko ball to the start winning device 27 and an action for illegally winning the pachinko ball directly to the normal winning opening 33. Can do.

  The game board 12 of the embodiment is composed of the transparent plate 21 and the back unit 22 as described above, and the thickness of the transparent plate 21 is thinner than that of the conventional single game board. The separation distance between the detecting portion 44a of the magnetic sensor 44 disposed close to the glass plate 15a and the glass plate 15a can be made shorter than in the past. Therefore, even if the detection sensitivity required for the magnetic sensor 44 is lower than that used for a conventional single game board, the same detection capability can be exhibited by shortening the separation distance. And cost can be kept low. Further, since the magnetic sensor 44 is hidden by the side decorative part 34 in which the normal winning opening 33 is formed and is not visible from the front side, the decorativeness of the board surface is not deteriorated. Furthermore, since the unauthorized player is not allowed to recognize the presence and location of the magnetic sensor 44, it is possible to suppress the unauthorized operation at a site where the magnetic sensor 44 cannot detect magnetism. In addition, since the side decorative part 34 for hiding the magnetic sensor 44 is a part for forming the normal winning opening 33, a dedicated part for hiding the magnetic sensor 44 is omitted to reduce the number of parts. And cost can be kept low.

  Next, the operation of the magnetic sensor arrangement structure will be described.

  When the magnetic sensor 44 is assembled to the game board 12, the decorative member 42 and the front half 43a of the ball discharge path member 43 are screwed to the collective discharge rod 41, respectively. The main body 45 of the magnetic sensor 44 is inserted into the front through hole 49a of the front half 43a from the rear side, and the front portion of the main body 45 protruding forward of the front half 43a is used as the support opening 42a of the decorative member 42. Insert. At this time, the main body 45 facing the front half 43a and the support opening 42a is supported by the concave portion 41c of the collective discharge rod 41 as shown in FIG. That is, the main body 45 of the magnetic sensor 44 that is long in the front-rear direction is stably supported by the decorative member 42, the collective discharge rod 41, and the front half 43 a of the ball discharge path member 43.

  Next, the latter half body 43b is positioned and screwed to the rear side of the front half body 43a so that the connector 46 of the magnetic sensor 44 protruding rearward of the front half body 43a is inserted into the rear through hole 50a from the front side. . In the magnetic sensor 44, the extension portion 45b is brought into contact with the front restricting portion 49b of the front half body 43a to restrict the position to the front side, and the step portion 45a of the magnetic sensor 44 is made to be the rear restricting portion of the latter half body 43b. The position of the rear side is regulated by coming into contact with 50b. That is, the magnetic sensor 44 is sandwiched and held between the front half 43a and the rear half 43b. Accordingly, a screw or the like for positioning and fixing the magnetic sensor 44 can be omitted. In addition, the collective discharge rod 41, the decorative member 42, and the ball discharge path member 43 that position and hold the magnetic sensor 44 are components having other functions, and therefore, a dedicated member for positioning and holding the magnetic sensor 44 is used. It can be omitted to reduce the number of parts and the cost can be kept low.

  The collective discharge rod 41 and the ball discharge path member 43 to which the magnetic sensor 44 is assembled are assembled to the front side of the frame-shaped main body 40 in the back unit 22. At this time, the connector 46 of the magnetic sensor 44 is connected to the relay terminal plate 47 disposed on the frame-shaped main body 40. Then, by assembling the transparent plate 21 on the front surface of the back unit 22, the magnetic sensor 44 is positioned on the back side of the side decorative component 34 disposed on the transparent plate 21. As described above, the detection portion 44a of the magnetic sensor 44, the rear portion of which is sandwiched from both the front and rear by the half halves 43a and 43b of the ball discharge path member 43, substantially contacts the back surface of the transparent plate 21, as shown in FIG. Since it is positioned at an appropriate position in contact with it, it is possible to reliably detect an illegal act using the magnet described above. Moreover, since the magnetic sensor 44 is disposed between the transparent plate 21 and the back unit 22, the magnetic sensor 44 does not protrude behind the game board 12, and other members disposed on the back side of the game board 12. The magnetic sensor 44 does not become an obstacle to the mounting of the sensor. Further, a dedicated component for protecting the magnetic sensor 44 can be omitted.

(Example of change)
The present application is not limited to the configuration of the above-described embodiment, and other configurations can be appropriately employed.
(1) In the embodiment, the magnetic sensor is arranged in the back unit through the collective discharge rod and the ball discharge path member, but the magnetic sensor is arranged through the mounting member on the back side of the decorative part arranged on the transparent plate. It is possible to adopt a configuration that does this.
(2) In the embodiment, the winning opening of the start winning apparatus is formed in two upper and lower stages, but it may be either one of upper or lower, and in that case, one guiding path is also formed at the corresponding position. It only has to be.
(3) In the embodiment, three normal winning holes are provided on the lower side of the guide path formed mainly in the left game area where the pachinko balls flow down, but there are one, two or four such normal winning holes. There may be more than one.
(4) In the embodiment, the case where the mounting hole for disposing the decorative member is provided in the transparent plate has been described. However, the transparent plate may be provided with no mounting hole. In this case, a decorative member and various parts arranged on the transparent plate are disposed on the front and back surfaces of the transparent plate, and game balls are passed from the game area to the back side of the board, and from the back side to the game area. What is necessary is just to set it as the structure which forms the through-hole to make in a transparent plate.
(5) In the embodiment, the magnetic sensor is configured to be positioned and held by the collective discharge rod, the decorative member, and the ball discharge path member. However, instead of the support port portion of the decorative member, the magnetic discharge sensor is supported as a holding portion. It is possible to adopt a configuration in which the mouth portion is formed and the magnetic sensor is positioned and held by the two members of the collective discharge rod and the ball discharge path member.
(6) In the embodiment, the case where one magnetic sensor is provided has been described. However, a plurality of magnetic sensors may be arranged at a place where fraudulent acts are easily performed, and close to each of the left regular winning openings. Thus, it is possible to employ a configuration in which a magnetic sensor is arranged or a magnetic sensor is arranged in the vicinity of the right normal winning opening.
(7) The gaming machine is not limited to a pachinko machine, and may be various other gaming machines such as an arrangement ball machine or a slot machine using a pachinko ball.

1 is a front view showing a pachinko machine according to a preferred embodiment of the present invention. It is a front view which shows the outer frame and middle frame of the pachinko machine which concern on an Example. It is a front view which shows the game board which concerns on an Example. It is a side view which disassembles the transparent board and back unit about the game board which concerns on an Example. It is a front view which shows the principal part of the back unit which concerns on an Example. It is a disassembled perspective view which shows the components relevant to the assembly | attachment of the magnetic sensor which concerns on an Example. It is an expansion disassembled perspective view which shows the components relevant to the assembly | attachment of the magnetic sensor which concerns on an Example. It is a vertical side view which shows roughly the relationship of each component of the arrangement | positioning site | part of the magnetic sensor which concerns on an Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 12 Game board 12a Game area 14 Symbol display apparatus 21 Transparent board 22 Back unit 27 Start winning apparatus 30 Game nail 31 Upper guide path (guide path)
31a Drop port 32 Lower taxiway (taxiway)
32a Drop opening 33 Regular winning opening 34 Side decoration parts (Hide parts, decorative parts)
36 Out port 41 Collective discharge rod (discharge rod)
41c Concave part (holding part)
43 ball discharge path member 44 magnetic sensor 44a detector 47 relay terminal board 48 holder

Claims (4)

A game board in which a game area is defined on the front side, and a display unit arranged on the back side of the game board and capable of displaying the symbols in a variable manner are made visible from the front side through the visible part provided on the game board. A symbol display device, a winning game device that is arranged on the game board and can flow down the game area, and a start winning device that gives a symbol variation start condition by the symbol display device triggered by the winning of the game ball; A plurality of game nails that are implanted in the game board and that can guide a game ball toward the starting prize-winning device and that form a guide path having a drop-out port from which the game ball can fall toward an out-port In gaming machines,
The game board has the game area defined on the front side, a transparent plate on which the start winning device and game nails are provided, a back side of the transparent plate, and the symbol display device on the back side. The back unit,
A magnetic sensor is disposed close to the transparent plate at a position facing the lower side of the guide path between the transparent plate and the back unit,
The gaming machine, wherein the transparent plate is provided with a component that hides the magnetic sensor from the front side invisible.   The gaming machine according to claim 1, wherein the part that hides the magnetic sensor is a decorative part that forms a normal winning opening through which a game ball flowing down the game area can win.   The transparent plate is provided with a plurality of normal winning holes in the game area facing the lower side of the guide path, and arranged so that the detection unit of the magnetic sensor faces between the adjacent normal winning ports on the back side of the transparent plate. The gaming machine according to claim 1 or 2 to be played.   On the back side of the transparent plate, there are a discharge bowl for discharging and guiding the game balls won in the normal winning opening, and a ball discharge path member for discharging and guiding the game balls won in other winning holes provided on the transparent plate. The ball discharge path member and the discharge trough are provided with the magnetic sensor that is connected to a relay terminal plate disposed behind the ball discharge path member positioned on the rear side and extends forward. The gaming machine according to claim 2 or 3, wherein each of the gaming machines is held by a holding unit.

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