JP4347826B2 - Fraud detection device and gaming machine using the same - Google Patents

Description

  The present invention relates to a fraud detection device that detects whether or not an illegal act has been performed when a medal is inserted, and a gaming machine using the fraud detection device.

  Slot machines that are installed and used in amusement halls such as pachinko parlors are called pachislot machines, and given a certain value to the medals that serve as the game media, various medals earned by playing games (games) Can be exchanged for a free gift. In addition to the medals, the game media include coins, pachinko balls, cards dedicated to slot machines, and the like. In the present specification, explanation will be given using medals as an example. In addition, in addition to inserting a medal from a medal slot, the insertion of a medal includes a case where a credited medal is used. In this specification, “inserting a medal” An explanation will be given by taking as an example the case of loading from the loading slot.

In such a slot machine, when a medal is inserted from the medal slot, it is determined whether or not the inserted medal is authentic (authentication determination), and a medal tray in which the non-regular medal is provided in the slot machine is determined. (Patent Document 1). In such a slot machine, a medal sorting device called a selector is provided inside the slot machine, and generally the authenticity of medals inserted by this selector is selected. This selector is provided with a medal passage bent in a substantially L shape. For example, when the inserted medal is a regular medal, the inside of the medal passage is guided and guided into the storage tank of the hopper device. At this time, it is detected by a photoelectric sensor provided in the selector. On the other hand, if the inserted medal is a medal with a different size from the regular medal, or a medal inserted at an improper timing, it deviates from the medal passage provided in the selector, and finally the medal tray Will be paid out.
JP 2002-260048 A

  By the way, in recent years, a so-called goto action, in which a medal is inserted by a method different from a regular method, may be performed. As one of the goto actions, for example, a goto device in which a plurality of LEDs are arranged in series at the front end of a plate bent in a substantially L shape is inserted from the medal insertion slot along the bending direction of the medal passage. Can be mentioned. In this case, after the plurality of LEDs face the photoelectric sensor, the LEDs are blinked. Note that the plurality of LEDs perform blinking control at different timings to cause the photoelectric sensor to erroneously detect that a medal has passed. As a result, no medal is actually inserted from the medal slot, but a medal is inserted inside the slot machine. For example, by performing the above action a plurality of times, medals are credited, and a player who inserts a medal using a goto device draws out the credited medal or plays a game with the inserted medal. Profits can be gained illegally by such actions.

  If some players gain profits illegally due to such a goth act, the profits of the game hall will be lost, and the players will lose interest in games because they cannot play fair games. I will let you. As a result, preventing goto acts is one of the biggest challenges not only for game hall managers, but also for manufacturers that provide slot machines for playgrounds. The fact is that no effective countermeasures have been taken.

  The present invention has been made to solve the above-described problems, and provides a fraud detection device capable of preventing a goat act of illegally inserting a medal and a gaming machine using the same. With the goal.

In order to achieve the above object, the fraud detection device of the present invention has a medal passage in which the inserted medal passes and a wall surface of the medal passage facing one of the front and back surfaces of the medal in the direction of the flow of the medal. A first optical sensor that detects the passage of the medal on the upstream side and a second optical sensor that detects the passage of the medal on the downstream side, and is supported vertically movably along the wall surface in the flow-down direction. A first protrusion projecting into the medal path upstream from the first photosensor and a downstream side from the second photosensor when the first and second photosensors are in a shielding position. Provided integrally with the projecting second protrusion, when the medal flows down the medal path, the outer periphery of the medal moves to the maximum movement position away from the shielding position by abutting against the first protrusion. The After exposing the first and second photosensors, the outer periphery of the medal is in contact with the first protrusion and the second protrusion, so that the first and first positions are between the shielding position and the maximum movement position. A shutter which is held at a position where the two-light sensor is exposed and moves to the maximum movement position by contact between the second protrusion and the outer periphery of the medal, and the shutter is directed from the maximum movement position to the shielding position. Upon receiving signals from a biasing member that biases, a shutter detection sensor that detects that the shutter has moved to the maximum movement position, and the first and second photosensors and the shutter detection sensor, the first The time from when the optical sensor detects the passage of the medal until the shutter reaches the maximum moving position, and the shutter after the second optical sensor detects the passage of the medal If the time to reach the large movement position equal, the medal, characterized in that it comprises, a determination unit that the medals normal. In addition, the both sides of a medal show the surface along the radial direction of a medal, when a medal consists of a disk shape. Further, the outer periphery of the medal includes a ridge line between a surface along the radial direction of the medal and the outer peripheral surface of the medal in addition to the outer peripheral surface of the medal.

In addition, the first and second protrusions are respectively positioned in gaps formed by a preceding medal and a succeeding medal when a plurality of medals pass through the medal path continuously. When the first protrusion comes into contact with the outer periphery of the succeeding medal and the shutter is held at the position where the first and second photosensors are exposed between the shielding position and the maximum movement position, It is preferable that the first and second protrusions are arranged at an interval so that the shutter moves to the maximum movement position by contact between the outer periphery of the medal to be performed and the first protrusion .

  In addition, when the medals passing through the medal passage are brought into contact with each other, the protrusion causes the medal to flow backward through the slope that moves the shielding member to the maximum movement position by the momentum of the medals and the inside of the medal passage. It is preferable to have a backflow prevention surface that prevents this.

  The gaming machine according to the present invention includes the above-described fraud detection device.

According to the fraud detection device of the present invention, with the configuration as described above, for example, when a regular medal is inserted, regular detection is performed by an optical sensor or a shutter detection sensor. When a non-regular medal is detected without being ejected, or when an illegal act using a goto device is performed, only the detection signal of the optical sensor is output, or the detection signal from the shutter detection sensor is output However, since the output of the detection signal is different from the case where a regular medal is inserted, the act of attempting to illegally insert a medal using a goto device without using a regular medal. It becomes possible to prevent. Further, when the goto action described above is performed using a goto instrument in which a plate bent into a substantially L shape is a thin plate, even if the tip of the plate reaches the position of the photosensor, the photosensor Is covered with the shielding member, the goto instrument cannot be detected by the optical sensor, and it is possible to prevent the goto action using the goto instrument.

In addition, since the protrusions are provided at intervals as described above, even when regular medals are inserted, even if a plurality of consecutive medals are inserted or randomly inserted, The same number of detection signals from the shutter detection sensor are output for each medal that is made. Thus, for example, when a medal is illegally inserted using a goto device, the detection signal from the shutter detection sensor is output continuously, the detection signal from the optical sensor is output, but the shutter detection The detection signal from the means is not output, or the detection signal from the optical sensor is output at the same timing as when a regular medal is inserted, but the detection signal from the shutter detection sensor is in response to the output of the optical sensor. Therefore, it is possible to clearly differentiate between a case where a regular medal is inserted and a case where a medal is illegally inserted using a goto device.

  In addition, when the medals passing through the medal passage are brought into contact with each other, the protrusion causes the medal to flow backward through the slope that moves the shielding member to the maximum movement position by the momentum of the medals and the inside of the medal passage. For example, when the width of the tip portion of the goto device is longer than the width of the other portion, the tip portion of the goto device prevents the back flow of the protrusion. Since it will be caught on the surface, it will not be possible to remove the goto tool from the medal slot. Thereby, it becomes easy for the surrounding players to recognize that the goth act was performed, and the goth act can be prevented beforehand.

  As shown in FIG. 1, the slot machine 2 includes a first reel 10, a second reel 11, and a reel 3 in a housing 3 including a storage box 4 and a front door 5 provided on the front surface of the storage box 4. The third reel 12, the hopper device 35 (see FIG. 2), the power supply device 36 (see FIG. 2) and the like are arranged.

  The front door 5 is composed of two doors, an upper door 6 and a lower door 7. A display window 8 is provided on the upper door 6. A first reel 10, a second reel 11, and a third reel 12 are disposed in the back of the display window 8. As is well known, on the outer circumference of the first reel 10, the second reel 11, and the third reel 12, for example, a plurality of types of symbols are arranged at regular intervals. When these reels are stopped, three symbols per reel are displayed through the display window 8, and when all the reels of the first reel 10, the second reel 11, and the third reel 12 are stopped, a total of nine symbols are displayed. The symbol is displayed through the display window 8.

  A liquid crystal display device 15 is provided on the side of the display window 8. The liquid crystal display device 15 performs an effect using an animation display when a game is executed, or performs a demonstration display when the game is not performed.

  Various operation buttons such as a single bet button 20, a MAX bet button 21, and a payout button 22 that are operated at the start of the game are provided on the upper portion of the lower door 7. Since the functions of these buttons are well known, details thereof are omitted. Also, in the vicinity of these buttons, a start lever 23 that is operated after a medal bet is placed, a first stop button 25 that stops a rotating reel, a second stop button 26, and a third stop button 27 are provided. . Note that the medal bet means that the 1-bet button 20 or the MAX bet button 21 is used after the medal 120 (see FIG. 8) is inserted from the medal insertion slot 30 or using the credited medal 50 (see FIG. 3). This is done by pressing.

  In addition to the buttons and levers described above, a medal slot 28 for inserting a medal 50 is provided at the upper part of the lower door 7. Further, at the lower part of the lower door 7, there are provided a payout opening 29 through which medals 50 are paid out when a winning is obtained, and a medal tray 30 for storing medals 50 paid out from the payout openings 29.

  As shown in FIG. 2, when the lower door 7 is opened, the hopper device 35, the power supply device 36, and the like provided at the lower portion of the storage box 4 are exposed. The hopper device 35 pays out medals 50 in the number of payouts according to the winning when winning in the game in the slot machine 2. Also, it operates when the payout button 22 is pressed when there is a credited medal 50 and pays out the credited medal 50 by the number of credits. A storage tank 37 for storing medals 50 is provided above the hopper device 35, and regular medals 50 that have passed a medal selector 40 described later are stored in the storage tank 37.

  On the other hand, on the rear surface of the opened lower door 7, a medal selector 40, a discharge passage (not shown) through which medals determined to be illegal by the medal selector 40 and medals discharged from the hopper device 35 are guided. Is provided.

  As shown in FIG. 3, in addition to the main body base 45, the sorting device 46, and the shutter device 47, the medal selector (tamper detection device) 40 includes a first medal sensor (see FIG. 6) 75 and a second medal sensor described later. (See FIG. 6) 76 and a shutter detection sensor (see FIG. 6) 78. The main body base 40 is made of resin. The main body base 45 is formed with a medal passage 51 made of a groove that is slightly wider than the diameter of the medal 50 made of a conductive member. When the medal selector 40 is attached to the lower door 7, the medal inlet 45a of the medal passage 51 communicates with the medal slot 28, and the medal 50 inserted from the medal slot 28 passes from the medal inlet 45a to the medal path. 51 is sent into the interior. The medal passage 51 is formed to be bent in a substantially L shape, and the medal 50 fed into the medal passage 51 from the medal entrance 45a falls to the bent portion of the medal passage 51, and then the traveling direction thereof is It changes in the direction (B direction in FIG. 3) substantially orthogonal to the falling direction (A direction in FIG. 3). Note that an end portion of the medal passage 51 communicating with the medal entrance 45 a has a rectangular tube shape, and the falling medal 50 is prevented from deviating from the medal passage 51.

  On one wall surface forming the medal passage 51 of the main body base 45, a distribution device mounting portion 45b is provided above the medal passage 51 on the downstream side of the bent portion of the medal passage 51 when viewed from the medal inlet 45a. ing. The distribution device mounting portion 45b forms a concave groove space above the wall surface, and a distribution device 46 is provided so as to face the medal passage 51 in this groove space.

  The distribution device 46 includes an attachment plate 52 attached to the wall surface of the main body base 45, a rotation plate 53 attached to the attachment plate 52 so as to be rotatable in the C direction or the D direction in FIG. A solenoid 120 (see FIG. 8) that rotates by applying an action and a spring (not shown) that biases the rotating plate 53 are configured.

  The attachment plate 52 and the rotation plate 53 are formed of a thin metal plate. The attachment plate 52 is formed in a rectangular shape, and is attached to the main body base 45 so as to protrude perpendicularly to the wall surface of the distribution device attachment portion 45b of the main body base 45. The rotating plate 53 is formed in a substantially T-shape that spreads downward, and is attached so as to face the wall surface of the distribution device mounting portion 45b with the tip in the protruding direction of the mounting plate 52 as a rotating shaft. It is attached to the plate 52. When the rotation plate 53 is attached to the attachment plate 52, a gap through which one medal 50 can pass is formed by the medal distribution portion 53a and the wall surface of the distribution device attachment portion 45b, which are wide portions of the rotation plate. Form. In a state where the medal distribution unit 53a faces the wall surface of the distribution device attachment unit 45b substantially in parallel, the distance between the lower edge of the medal distribution unit 53a and the bottom surface of the medal passage 51 serving as the contact surface of the medal 50 is The rotating plate 53 is attached so that the diameter of the medal 50 is shorter and the upper part of the medal 50 can be supported.

  As a result, when the medal 50 is a regular size, the medal sorting unit 53a supports the rolling of the medal 50 in the medal passage 51, so that the medal 50 can pass through the medal passage 51 and is stored by the medal guide member 54. Guided to tank 37. On the other hand, when the medal 50 is not a normal size, the medal sorting unit 53a does not support the rolling of the medal 50 in the medal passage 51, so that the medal 50 falls in the direction E in FIG. 3 and is paid out through the discharge passage. It is discharged from the mouth 29.

  Further, the rotating plate 53 has a passing position (FIG. 3) that allows the medal 50 to pass by using the excitation action of the solenoid 120 and the restoring force of the spring as described above, with the tip in the protruding direction of the mounting plate 52 as a rotating shaft. And a discharge position (a position indicated by a two-dot chain line in FIG. 3) where the medal is dropped from the medal passage in the direction E in FIG.

  When the power of the slot machine 2 is turned on, the exciting action by the solenoid 120 is activated, so that the rotating plate 53 is driven to be rotated and set to the passing position. Thereby, if the medal 50 is a normal size, the medal 50 can pass through the medal passage 51.

  Further, when the number of medals 50 credited has reached the upper limit of storage number (for example, 50), or while playing a game (operating the start lever 23, the first, second, third In a state from when the reels 10, 11, 12 rotate until all the reels 10, 11, 12 are stopped), the excitation action of the solenoid 120 is cut off, and the rotating plate 53 is moved by the restoring force of the spring. It is rotated from the passing position to the discharging position. As a result, the medal 50 falls in the direction E in FIG. 3 and is paid out from the payout port 29 via the discharge passage.

  The shutter device 47 is provided at the downstream end of the medal passage 51. As shown in FIGS. 4 and 5, the shutter device 47 includes a shutter (shielding member) 55 and coil springs (biasing means) 56 and 57. The shutter 55 has a shape including a groove portion 60 whose lower surface is opened. The shutter 55 shields the light guide holes 66 and 67 provided below the opening 58 of the main body base 45 from the first shielding part 62 that covers the wall surface of the medal passage 51 and the back side of the main body base 45. A second shielding part 63 is provided, and the groove part 60 is provided between the first shielding part 62 and the second shielding part 63. The groove portion 60 is inserted through the wall surface of the main body base 45 that is continuous with the opening 58, and the wall surface 60 a constituting the groove portion 60 is in contact with the lower wall surface 58 a of the inner wall surface of the opening 58. At this time, the light guide holes 66 and 67 of the main body base 45 are shielded by the first shielding part 62 and the second shielding part 63. Hereinafter, the position of the shutter 55 in this state will be described as a shielding position. In the following description, the position of the shutter 55 when the wall surface 60a constituting the groove portion 60 and the lower wall surface 58a of the opening 58 are in contact with each other will be described as a shielding position.

  Contact pieces (projections) 64 and 65 are provided on the outer wall surface of the first shielding part 62. The contact piece 64 is disposed on the upstream side of the light guide hole 66 provided in the main body base 45, and the contact piece 65 is disposed on the downstream side of the conduction hole 67 provided in the main body base 45. The tip portions of the pieces 64 and 65 protrude into the medal passage 51.

  A sloped surface 64 b that is inclined toward the downstream side of the medal passage 51 is provided at the tip of the wall surface 64 a that is the wall surface of the abutting piece 64 and is upstream of the medal passage 51. The slope 64b is in contact with the outer periphery of the medal 50 rolling in the medal passage 51, and is provided to push up the shutter 55 in the direction F in FIG. 9 by the momentum of the rolling medal 50. The wall surface 64c opposite to the wall surface 64a is formed in a rectangular shape, and functions as a backflow prevention surface that prevents the medal 50 from flowing back when the medal 50 flows backward through the medal passage 51, for example. The outer periphery of the medal 50 that rolls on the medal passage 51 is in contact with the backflow prevention surface 64c after contacting the inclined surface 64b of the contact piece 64, the inclined surface 64b, the ridge line 64e of the front end surface 64d, and the front end surface 64d in this order. It contacts the ridge line 64f with the tip surface 64d. When the front end surface 64d of the contact piece 64 and the outer periphery of the medal 50 are in contact with each other, the movement amount of the shutter 55 is maximized. The position where the movement amount of the shutter 55 is maximized will be described below as the maximum movement position.

  On the other hand, the abutting piece 65 is a member for pushing up the shutter 55 when the tip of the abutting piece 65 abuts on the medal 50, similarly to the abutting piece 64. The contact piece 65 includes an inclined surface 65 b in which the tip of the wall surface 65 a on the upstream side of the medal passage 51 is inclined toward the downstream side of the medal passage 51. Further, when the front end surface 65c of the contact piece 65 and the outer periphery of the medal 50 are in contact, the movement amount of the shutter 55 from the shielding position is the movement of the shutter 55 when it comes into contact with the front end surface 64a of the contact piece 64. It will be the same as the amount. Further, the wall surface 65 d constituting the contact piece 65 is a backflow prevention surface for preventing the backflow of the medal 50, similarly to the backflow prevention piece 64 c of the contact piece 64.

  When the outer periphery of the medal 50 is in contact with the backflow prevention surface 64c of the contact piece 64 and the ridge line 64f of the end surface 64d, the shutter 55 is moved toward the shielding position by the restoring force of the coil springs 56 and 57. However, the contact piece 65 is arranged so that the tip of the contact piece 65 contacts the outer periphery of the medal 50 at the position where the light guide holes 66 and 67 are exposed. The contact piece 64 is arranged at a predetermined interval. In this embodiment, the place where the contact piece 65 contacts the outer periphery of the medal 50 is a ridge line 65e between the inclined surface 65a and the end surface 65b. In addition to this, the outer periphery of the medal 50 is applied to the inclined surface 65a. It is also possible to make contact.

  Guide pieces 63 a and 63 b are provided on both side surfaces of the second shielding portion 63, and the guide pieces 63 a and 63 b are opposite to the wall surface constituting the medal passage 51, that is, the back side of the main body base 45. Are inserted into the groove portions 70a and 71a of the guide rails 70 and 71 provided on the wall surfaces, respectively. Thereby, when the shutter 55 moves, the moving direction of the shutter 55 is regulated.

As shown in FIGS. 6 and 7, the first medal sensor ( first optical sensor ) 75 is disposed on the back side of the main body base 45 of the medal selector 40, and emits a detection light and a light emitting unit 75 a. And a light receiving portion 75b that receives detection light from the light receiving portion. The light emitting part 75 a and the light receiving part 75 b are arranged so that the optical axis of the detection light coincides with the central axis of the light guide hole 66. For example, when the shutter 55 is in the shielding position or when the medal 50 passes (see FIG. 6), the light guide hole 66 is shielded, so that the detection light from the light emitting unit 75a is received by the light receiving unit 75b. I can't. As a result, the signal from the first medal sensor 75 is turned off. On the other hand, when the light guide hole 66 is exposed (see FIG. 7), the detection light emitted from the light emitting portion 75a passes through the light guide hole 66 and is received by the light receiving portion 75b. As a result, the signal from the first medal sensor 75 is turned on.

Similarly to the first medal sensor 75, the second medal sensor ( second optical sensor ) 76 includes a light emitting unit 76a and a light receiving unit 76b. Since the detection method in the second medal sensor 76 is the same as that of the first medal sensor 75, the description thereof is omitted. The second medal sensor 76 detects the same medal 50 when the medal 50 is detected by the first medal sensor 75 on the downstream side of the first optical sensor 75 and when the medal 50 passes. It is placed in a position where it can be done. The detection of the medal 50 by the second medal point 76 is performed using the light guide hole 67.

  The shutter detection sensor 78 detects that the shutter 50 described above is located at the maximum movement position. The shutter detection sensor 78 is disposed on the back side of the main body base 45 of the medal selector 40, and includes a light emitting unit 78a that emits detection light and a light receiving unit 78b that receives detection light from the light emitting unit 78a. . As shown in FIG. 6, when the shutter 55 is in the shielding position, the detection light from the light emitting unit 78 a is received by the light receiving unit 78 b through the opening 58. Thereby, the shutter detection sensor 78 is turned on. On the other hand, as shown in FIG. 7, when the shutter 55 is at the maximum movement position, the detection light from the light emitting unit 78a is blocked by the shutter 55, so that the detection light cannot be received by the light receiving unit 78b. . In this case, the shutter detection sensor 78 is turned off. It is also possible to detect that the shutter is at the maximum movement position by providing a position detection piece on the shutter 55 and detecting the position detection piece with a shutter detection sensor.

  FIG. 8 is a functional block diagram showing an electrical configuration of the slot machine 2. Game control of the slot machine 2 is performed by a control device (fraud detection device) 90. The control device 90 includes a CPU 91, a ROM 92, and a RAM 93. The CPU 91 performs processing in the game based on the game control program 95 stored in the ROM 92.

  The start switch sensor 96 is provided inside the start lever 23, is turned on when the start lever 23 is operated, and outputs an on signal (game start signal) to the CPU 91. In response to this, the CPU 91 controls the rotation of the first reel 10, the second reel 11, and the third reel 12.

  Indices 10a, 11a, and 12a are provided at the reference positions of the first reel 10, the second reel 11, and the third reel 12, respectively. The passage of the indexes 10a, 11a, 12a is photoelectrically detected. Detection signals from the photosensors 100, 101, and 102 are output to the CPU 91 as a reset signal for each reel. The first reel 10, the second reel 11, and the third reel 12 are press-fitted with drive shafts of stepping motors 105, 106, and 107, respectively. The reel 10, the second reel 11, and the third reel 12 rotate. In FIG. 8, for convenience, the first reel 10 and the stepping motor 105, the second reel 11 and the stepping motor 106, and the third reel 13 and the stepping motor 107 are surrounded by solid lines. Reference numerals 108, 109, and 110 denote drivers that drive the stepping motors 100, 101, and 102, respectively.

  The CPU 91 is provided with a pulse counter (not shown) for each stepping motor, and counts the number of drive pulses supplied to each stepping motor. As a result, each time a reset signal is input from the photosensors 100, 101, and 102, it is cleared and counted up again. By monitoring the count value of the pulse counter for each reel, the CPU 91 can identify, for example, which symbol has moved on the center winning effective line, and how much the reel should be rotated. It is possible to predict whether the target symbol will move on the winning line.

  A stop switch sensor is provided in each of the first stop button 25, the second stop button 26, and the third stop button 27. When an ON signal from each stop switch sensor is input to the CPU 91, the CPU 91 reads the ROM 92. Referring to a symbol table (not shown) stored in the table, the target symbol is stopped from the display window 8, or when the target symbol cannot be displayed from the display window, another symbol is displayed. Thus, after supplying the drive pulse to the corresponding stepping motor, the supply of the drive pulse is lethal. When a winning is obtained, the CPU 91 operates the hopper device 35 and pays out the number of medals for the winning. Reference numeral 112 denotes a liquid crystal controller, which is provided to display an image on the display screen of the liquid crystal display device 15.

  The CPU (determination means) 91 receives output signals from a first medal sensor 75, a second medal sensor 76, and a shutter detection sensor 78 provided in the medal selector 40, respectively. Since the CPU 91 reads the determination program 115 stored in the ROM 92, the inserted medal 50 is actually detected based on the ON signals from the first medal sensor 75, the second medal sensor 76, and the shutter detection sensor 78. It is determined whether or not it is a medal. When it is determined that the inserted medal 50 is an actual medal, a bet process is performed on the medal. On the other hand, when it is determined that the inserted medal 50 is an illegal operation, that is, a pseudo-inserted one using a goth tool, the error determination program 116 stored in the ROM 92 is read, for example, In addition to displaying a warning on the liquid crystal display device 15, an alarm sound is reproduced by a speaker (not shown), or an illumination such as an LED provided in the slot machine 2 is different from the lighting / extinguishing control in the game. Turn on / off control. In addition, a warning signal is output to a hall computer (not shown) that manages the slot machines 2 arranged in the game hall.

  Further, the CPU 91 confirms how many medals have been credited with reference to the RAM 93. For example, when the number of credits stored in the RAM 93 reaches 50, the power supply to the solenoid 120 is stopped. Thus, even if the medal 50 is inserted from the medal insertion slot 28, the medal 50 is discharged from the payout slot 29.

  Next, the effect | action of this embodiment is demonstrated based on the time chart of FIGS. 9-13 and FIGS. 9 to 13, the coil springs 56 and 57 are omitted in order to prevent the illustration from being complicated. When the medal 50 is not inserted, the light guide holes 66 and 67 are shielded by the first shielding part 62 and the second shielding part 63 of the shutter 55, that is, the shutter 55 is positioned at the shielding position. is doing. For this reason, since the light receiving portions 75b and 76b of the first medal sensor 75 and the second medal sensor 76 cannot receive the inspection light from the light emitting portions 75a and 76a, the first medal sensor 75 and the second medal sensor 76 are respectively Turn off.

  When the player inserts a medal 50 from the medal insertion slot 28 when performing a game, the inserted medal 50 passes from the medal insertion slot 28 to the medal passage 51 provided in the medal selector 40 from the medal entrance 45a of the medal selector 40. And fall. Since the medal passage 51 is bent in a substantially L shape, the medal 50 that has fallen into the medal passage 51 is guided in the direction A in FIG. Then, the medal 50 dropped to the L-shaped bent portion rolls in the B direction in FIG. 3 along the medal passage 51 on the downstream side of the bent portion. Note that the rotating plate 53 of the sorting device 46 provided on the downstream side of the bent portion of the medal passage 51 is held at a position indicated by a solid line in FIG. 3 from the time when power is supplied to the slot machine 2. . As a result, when the medal 50 rolling on the medal passage 51 on the downstream side of the bent portion of the medal passage 51 has a normal size, the upper end portion of the rolling medal 50 is placed on the rotating plate 53. It rolls to the downstream side of the medal passage 51 while being supported by the provided medal distributing portion 53a.

  When the medal 50 whose upper end of the radial surface of the medal 50 is supported by the medal distributing portion 53 a further rolls on the medal passage 51, the contact piece 64 provided so that the outer periphery of the medal 50 protrudes from the medal passage 51. It contacts the slope 64b. At this time, the pressing force in the S direction in FIG. 9 is applied to the inclined surface 64b of the contact piece 64.

  Since the inclined surface 64b is composed of a surface inclined downstream with respect to the wall surface 64a, the pressing force from the medal 50 to the contact piece 64 is the normal direction of the inclined surface 64b (T direction in FIG. 9), It can be disassembled in the horizontal direction (U direction in FIG. 9) of the slope 64b. Among these, the contact piece 64 receives the pressing force in the X direction in FIG. 9 by the pressing force decomposed in the T direction in FIG. 9. As a result, the shutter 55 moves in the direction F in FIG. 9 from the shielding position.

  When the shutter 55 is moved in the direction F in FIG. 9 by the medal 50 rolling on the medal passage 51, the ridge line 64e between the inclined surface 64b of the contact piece 64 and the front end surface is brought into contact with the outer periphery of the medal 50, and further the contact piece. 64 will be pushed up. In the process in which the contact piece 64 is pushed up, the shielding of the light guide holes 66 and 67 by the first shielding part 62 and the second shielding part 63 of the shutter 55 is released, and the light guiding holes 66 and 67 are exposed. . Since the light emitting portions 75a and 76a of the first medal sensor 75 and the second medal sensor 76 always emit detection light toward the light receiving portions 75b and 76b, the light guide holes 66 and 67 are exposed. The detection light passes through the light guide holes 66 and 67 and is received by the light receiving portions 75b and 76b. As a result, the first medal sensor 75 and the second medal sensor 76 are turned on.

Even after the first medal sensor 75 and the second medal sensor 76 are turned on, the medal 50 rolls on the medal passage 51 and the shutter moves in the direction F in FIG. The light guide hole 66 is shielded by the surface facing the wall surface 45c among the radial surfaces of the rolling medal 50 (the surface along the radial direction of the medal), and the light guide hole 66 is completely shielded. As a result, the first medal sensor 75 is turned off. Then, as shown in FIG. 10, when the front end surface 64d of the contact piece 64 comes into contact with the uppermost portion (vertex) after the outer periphery of the medal 50, the shutter 55 moves in the direction F in FIG. Stops and reaches the maximum movement position. When the shutter 55 reaches the maximum movement position, the shutter detection sensor 78 is turned off and the output is output to the CPU 91.

  Since the medal 50 continues to roll on the medal passage 51, the light guide hole 67 is shielded by the surface facing the wall surface among the radial surfaces of the medal 50. When the light guide hole 67 is completely shielded, the second medal sensor 76 is turned off. In addition, after the front end surface 64d of the contact piece 64 and the outer periphery of the medal 50 are in contact, the ridge line 64f between the front end surface 64d and the wall surface 64c of the contact piece 64 is in contact with the outer periphery of the medal 50. Since the outer periphery of the medal 50 is inclined downward after reaching the apex, the shutter 55 is moved from the maximum movement position toward the shielding position by the coil springs 56 and 57 that urge the shutter 55 to the shielding position (in FIG. 10). Move in the G direction). Thereby, the shutter detection sensor 78 is turned on.

  After the second medal sensor 76 is turned off, the outer periphery of the rolling medal 50 comes into contact with the tip surface 65b of the contact piece 65 and the ridge line 65e of the tip surface 65b. As a result, the movement of the shutter in the G direction in FIG. 10 is stopped. The ridge line 65e of the contact piece 65 is in contact with a portion of the outer periphery of the medal 50 that is inclined upward toward the uppermost portion (vertex). 65 is pushed up, that is, the shutter 55 moves toward the maximum movement position (in the F direction in FIG. 11). Before the shutter 55 reaches the maximum movement position, the shielding of the light guide hole 66 by the medal 50 is released, and the first medal sensor 75 is turned on. Thereafter, the front end surface 65c of the contact piece 65 is brought into contact with the uppermost portion (vertex) of the outer periphery of the medal 50, whereby the shutter 55 is again positioned at the maximum movement position, and the shutter detection sensor 78 is turned off. .

  After the abutment piece 65 abuts on the uppermost portion (vertex) of the outer periphery of the medal 50, the outer periphery of the medal 50 is inclined downward, so that the abutment piece 65 is in contact with the outer periphery of the medal 50. Further, the shutter 55 moves from the maximum movement position toward the shielding position (in the G direction in FIG. 12) by the bias of the coil springs 56 and 57. Thereby, the shutter detection sensor 78 is turned on. The second medal sensor 76 is turned on by releasing the shielding of the light guide hole 67 by the medal 50 before the contact between the abutting piece and the outer periphery of the medal 50 is released.

  The light guide holes 66 and 67 are shielded by the first shielding portion 62 and the second shielding portion 63 of the shutter 55 before the contact between the outer periphery of the medal 50 and the contact piece is released. As a result, the first medal sensor 75 and the second medal sensor 76 are turned off. When the shutter 55 reaches the shielding position, the inner wall surface 58a of the opening 58 and the wall surface 60a of the groove 60 are brought into contact with each other, and the shutter 55 is held at the shielding position.

  On the other hand, two medals 50 may roll in the medal passage 51 continuously. In this case, the operation of the shutter 55 that is moved by the preceding medal 50 is the same as that performed when a regular medal is inserted, and is omitted here. Then, when the preceding medal 50 is in contact with the contact piece 65 and the shutter 55 moves to the shielding position, the subsequent medal 50 comes into contact with the inclined surface 64b of the contact piece 64. The movement to the shielding position is stopped. Since the contact piece 65 is arranged at a predetermined interval with respect to the contact piece 64, the abutment piece 65 contacts the medal 50 preceded by the leading end surface 65c of the contact piece 65 and the ridge line 65f of the wall surface 65d. When the slope 64b of the piece 64 comes into contact with the subsequent medals 50, the light guide holes 66 and 67 are exposed. In this state, the first medal sensor 75 and the second medal sensor 76 are turned on. Thereafter, the contact between the outer periphery of the preceding medal 50 and the tip surface 65c of the contact piece 65 and the ridge line 65f of the wall surface 65d is released, and the preceding medal 50 is stored in the storage tank 37 of the hopper device 35 by the medal guide member 54. It is stored in.

On the other hand, when the shutter 55 is moved again to the maximum movement position by the subsequent medal 50, the shutter detection sensor 78 is turned off. In addition, since the movement of the shutter and the medal 50 after the subsequent medal 50 and the tip surface 64d of the abutting piece 64 abut is the above-described operation, the details thereof are omitted here. As a result, as shown in FIGS. 14 and 15, when the regular medal 50 is inserted, the shutter detection sensor 78 is turned off after the first medal sensor 75 is turned on, and then the shutter detection sensor 78 at one end. Is turned on , but after the second medal sensor 76 is turned off , the shutter detection sensor 78 is turned off again. Further, since the time from the medal detection in each medal sensor to the detection of the shutter 55 reaching the maximum movement position is the same, the medal 50 passing through the medal path 51 and each medal detection sensor or shutter detection sensor 78. It is possible to grasp the relative position.

  Among the players, there are those who perform an illegal operation as if the regular medal 50 was inserted using the goto equipment without inserting the regular medal 50 from the medal slot 28. For example, as shown in FIG. 16, when the thickness of the goto tool 130 is thick, it is possible to push up the abutting pieces 64 and 65 protruding into the medal passage 51. The goto device 130 can be moved in the H direction in FIG. 16 to sequentially turn off the first medal sensor 75 and the second medal sensor 76. However, when the shutter 55 is moved to the maximum movement position and the goto tool 130 is moved in the H direction in the figure, the first medal sensor 75 is turned on after the first medal sensor 75 is turned on. Before the shutter detection sensor 78 is turned off, the shutter detection sensor 78 remains off while the first medal sensor 75 and the second medal sensor 76 are turned on / off by the tip portion 130a of the goto tool 130. (See FIG. 14).

  In addition, as shown in FIG. 17, the light guide holes 66 and 67 are exposed without moving the shutter to the maximum movement position by the goto tool 130, and the first medal sensor 75 and the first medal sensor 75 are passed at the timing when the regular medal 50 passes. Although the case where the two medal sensors 76 are sequentially turned off can be considered, in this case, the shutter detection sensor 78 remains on (see FIG. 14). Thereby, since the on / off state of each sensor when a regular medal is inserted is different, it is possible to determine that an act of illegally inserting a medal has been performed.

  Further, for example, in the case of the goto device 130 with a thin plate, even if the tip 130 a of the goto device 130 contacts the contact pieces 64, 65, the thickness of the contact pieces 64, 65 is narrower than the width of the medal passage 51. Therefore, it becomes difficult to push up the contact pieces 64 and 65 of the goto tool 130. Accordingly, since the shutter 130 remains held at the shielding position, it is possible to prevent an illegal medal insertion using the goto tool 130.

  Note that the shutter detection sensor 78 is turned off when the goto device 130 is improved and the first medal sensor 75 is turned off, and the shutter detection sensor 78 is turned off when the second medal sensor 76 is turned off. Even if the first medal sensor 75 is turned off, the elapsed time from when the shutter detection sensor 78 is turned off, or after the second medal sensor 76 is turned off, the shutter detection sensor is turned off. If the elapsed time during which 78 is turned off is not the same as the elapsed time when a regular medal is inserted, it can be determined whether or not an act of illegally inserting a medal has been performed. If the determination program 115 determines that the medal has been inserted illegally by the CPU 91, the CPU 91 reads the error processing program 116 from the ROM 92 and causes the liquid crystal display device 15 to display a warning. An alarm sound is reproduced by a speaker (not shown), or an alarm signal is output to a host computer in a game hall.

  Furthermore, the goto device 130 may be used to turn on / off each sensor at the same timing as when a regular medal 50 is inserted. As shown in FIG. 18, for example, when the width of the tip portion 130 a of the goto tool 130 is larger than the distance between the tip surfaces 64 d and 65 c of the contact pieces 64 and 65 and the bottom surface of the medal passage 51, the goto tool 130. 18a is locked by the contact piece 65 and cannot be moved in the J direction in FIG. 18, so that the goto tool 130 cannot be extracted from the medal slot 28. As a result, the player who intends to cheat tries to pull out the goto device 130 so hard that he / she can recognize that he / she is illegally throwing medals around. Moreover, even if it is decided to remove the goto device 130 from the medal slot 28, it is known to the surroundings that the goto device has been used. Can do.

  In this embodiment, a contact piece that protrudes into the medal path is provided on the shutter, the medal that rolls in the medal path is brought into contact with the contact piece, and the shutter is pushed up by using the momentum of the rolling medal. However, the present invention is not limited to this. For example, after the first shielding portion of the shutter protrudes into the medal passage, the medal is brought into contact with the first shielding portion, and then the shutter is pushed up using the momentum of the medal. Is possible.

  In this embodiment, the moving direction of the shutter is parallel to the radial surface of the medal and orthogonal to the rolling direction of the medal. However, the present invention is not limited to this, and the shutter slides in the medal rolling direction. In addition, the contact piece may be retracted from the medal path in the process of sliding.

  In the present embodiment, the position of the conduction hole is the upper end portion of the medal passage. However, the present invention is not limited to this, and it can be provided at the lower end portion of the medal passage.

  In the present embodiment, an example in which the fraud detection device is incorporated in a slot machine has been taken up. However, the present invention is not limited to this, and the fraud detection device of the present invention can be applied to other gaming machines and devices into which medals and coins are inserted. Can be incorporated.

  In the present embodiment, when medals are continuously inserted, the one-time shutter is moved from the maximum movement position to the shielding position and the maximum movement position in the process in which the preceding medals pass through a place where the shutter is arranged in the medal path. When the light guide hole is moved to a position where the light guide hole is exposed, the outer periphery of the succeeding medal and the contact piece on the upstream side are in contact with each other. After the preceding medal passes, the shutter may be moved to the shielding position.

It is a perspective view which shows the external appearance of the slot machine of this invention. It is a perspective view which shows the structure inside a slot machine. It is a perspective view which shows the structure of a medal selector. It is a perspective view which shows the structure of a shutter apparatus. It is a perspective view which shows the structure of the rear surface side of a shutter. It is a perspective view which shows the positional relationship of the shutter in a shielding position, a medal sensor, and a shutter detection sensor. It is a perspective view which shows the positional relationship of the shutter in a maximum movement position, a medal sensor, and a shutter detection sensor. It is a functional block diagram showing an electrical configuration of the slot machine. It is a front view which shows the state which the medal contact | abutted to the upstream contact piece. It is a front view which shows the state which the shutter moved to the maximum moving position. It is a front view which shows the state which the medal contact | abutted to the contact piece of the downstream side. It is a front view which shows the state which the shutter moved to the maximum movement position again. It is a front view which shows the state by which the contact piece of the upstream side contact | abutted to the medal which the downstream contact piece precedes, respectively. It is a timing chart which shows the state of ON / OFF of a 1st medal sensor, a 2nd medal sensor, and a shutter detection sensor. It is a timing chart which shows the ON / OFF state of the 1st medal sensor, the 2nd medal sensor, and the shutter detection sensor when medals are inserted continuously. It is a front view which shows an example in the case where a shutter is moved to the maximum movement position using a goto device and a medal insertion operation is performed illegally. It is a front view which shows an example in the case of making a medal insertion operation | movement illegally, without moving a shutter to a maximum moving position using a goto apparatus. It is a front view which shows an example at the time of making it impossible to pull out a goto instrument from a medal insertion slot with a contact piece.

Explanation of symbols

2 Slot machine 28 Medal slot 40 Medal selector (fraud detection device)
47 Shutter device 50 Medal 51 Medal passage 55 Shutter (shielding member)
56, 57 Coil spring (biasing means)
64, 65 contact piece (protrusion)
64b, 65b Slope 66, 67 Light guide hole 64c, 65d Wall surface (backflow prevention surface)
75 First medal sensor ( first optical sensor )
76 Second medal sensor ( second optical sensor )
78 Shutter detection sensor 90 Control device (illegal detection device)
91 CPU (determination means)

Claims (4)

A medal passage for passing the inserted medal,
The medal passage wall facing one of the front and back surfaces of the medal is spaced apart in the medal flow direction, and a first optical sensor for detecting the passage of the medal on the upstream side and a first light sensor for detecting on the downstream side. A two-light sensor;
The medal path is supported upstream of the first light sensor along the wall surface and vertically movable in the flow-down direction, and is upstream of the first light sensor when in the shielding position for shielding the first and second light sensors. And a second protrusion protruding downstream from the second optical sensor, and when the medal flows down the medal path, the outer periphery of the medal is the first protrusion. The outer periphery of the medal comes into contact with the first protrusion and the second protrusion after the first and second photosensors are exposed after being moved to the maximum movement position away from the shielding position by a predetermined amount. As a result, the first and second photosensors are held between the shielding position and the maximum movement position, and the maximum movement position is obtained by contact between the second protrusion and the outer periphery of the medal. Shut to move And,
A biasing member that biases the shutter from the maximum movement position toward the shielding position;
A shutter detection sensor for detecting that the shutter has moved to the maximum movement position;
Receiving signals from the first and second light sensors and the shutter detection sensor, and a time from when the first light sensor detects the passage of the medal until the shutter reaches the maximum movement position; Determination means for determining that the medal is a regular medal when the time from when the second optical sensor detects the passage of the medal to when the shutter reaches the maximum movement position is equal;
A fraud detection device comprising:   When a plurality of medals pass through the medal passage continuously, the medals followed by the first projection when the first and second projections are respectively positioned in gaps generated by the preceding medal and the succeeding medal. And the shutter is held at a position where the first and second photosensors are exposed between the shielding position and the maximum movement position, and then the outer periphery of the subsequent medal and the first protrusion 2. The fraud detection apparatus according to claim 1, wherein the first and second protrusions are arranged at an interval so as to move the shutter to the maximum movement position by contact. The first and second protrusions include a slope that moves the shutter to the maximum movement position by a force of the medal when a medal that passes through the medal passage is abutted, and a medal in the medal passage. The fraud detection device according to claim 1, further comprising a backflow prevention surface for preventing the backflow of the backflow.   A gaming machine comprising the fraud detection device according to claim 1.

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