JP4074600B2 - Slot machine - Google Patents

Description

  The present invention relates to a slot machine capable of generating a predetermined winning according to a display result of a variable display device capable of changing a display state, and more particularly to a slot machine that plays a game based on insertion of medals from the outside. .

  In this type of slot machine, medals inserted from the outside are detected by a sensor, and the number of bets is set based on the number of detected medals, or stored as credits for setting the number of bets. For example, there is a possibility that an illegal act of pulling a game medium once inserted from the outside and reusing it, that is, an illegal act such as so-called reversal is performed. There have been proposed two or three arranged so that the direction of the medal flow can be detected based on the detection order of the plurality of sensors (see, for example, Patent Documents 1 and 2).

  Further, as a technique related to the present invention, two sensors for detecting medals paid out from a medal payout device are provided, and a light projecting element and a light receiving element that constitute one of these sensors, and the other sensor. The light projecting element and the light receiving element that constitute the sensor are mounted so that the light projecting directions of the light projecting elements are opposite to each other, and even if one sensor cannot be detected by dust or the like, the other sensor detects it. There has been proposed one that can perform (see, for example, Patent Document 3).

JP 2000-325549 A (first page) Japanese Patent Laying-Open No. 2003-281492 (page 3, FIG. 2) Japanese Patent Laid-Open No. 2003-10389 (page 4-5, FIG. 4)

  In the slot machine as described above, as a sensor for detecting the insertion of a medal inserted from the outside, the light receiving unit detects the blocking of light from the light projecting unit having a light projecting unit and a light receiving unit. Photosensors that detect the passage of medals have been used, but in recent years, a portion where a light emitting element of an illegal instrument in which a light emitting element such as an LED is mounted on a non-translucent substrate is inserted from the medal slot. The light emitting element is placed between the light projecting part and the light receiving part so that the light receiving part of the sensor faces the light receiving part, and the light from the light projecting part is blocked when the medal passes by blinking the light emitting element. By reproducing, there is a problem of fraud that misdetects the insertion of a medal even though no medal is inserted.

  Here, by applying the technique described in Patent Document 3, it is conceivable to arrange the light projecting unit and the light receiving unit of a plurality of sensors so that the directions of the sensors are opposite to each other as a sensor for detecting insertion of a medal. In this case, it is necessary to use an instrument having light emitting elements mounted on both sides of the board, and it is difficult to insert an unauthorized instrument from the medal slot to the sensor position due to the increased thickness of the instrument. It can be. However, the technique described in Patent Document 3 is a technique for a sensor for detecting a medal paid out from a payout device, and further, a light projecting unit and a light receiving unit of the sensor are used to increase the reliability of medal detection. Therefore, the technique described in Patent Document 3 is applied to a sensor for detecting the insertion of medals, resulting in an effect of suppressing the use of unauthorized equipment. It is difficult. Further, even in this case, there is a problem that fraud using a fraudulent instrument having light emitting elements mounted on both sides of the substrate cannot be sufficiently suppressed if the path through which the inserted medal flows down is wide.

  The present invention has been made paying attention to such a problem, and provides a slot machine capable of effectively suppressing an illegal act of erroneously detecting the insertion of a medal using an illegal instrument equipped with a light emitting element. With the goal.

In order to solve the above-described problem, a slot machine according to claim 1 of the present invention provides:
The game can be started by setting a predetermined number of bets for one game, and the display result of the variable display device capable of changing the display state is derived and displayed, whereby one game is completed. , A slot machine in which a winning can be generated according to the display result of the variable display device,
A take-in route for taking in medals inserted from the medal slot for use in setting the bet number;
A discharge path for discharging the medals inserted from the medal slot to the outside;
A flow path switching means for switching a flow path of medals inserted from the medal insertion port to a flow path of either the discharge path or the intake path;
First switching control means for causing the flow path switching means to switch the flow path from the take-in path to the discharge path when a medal cannot be received;
Second switching control means for causing the flow path switching means to switch the flow-down path from the discharge path to the take-in path when a medal can be received;
It consists of a pair of light projecting units and light receiving units arranged at positions facing each other across the take-in route, and flows down the take-in route by detecting light blocking from the light projecting unit to the light receiving unit. An inserted medal sensor for detecting medals;
Determining means for determining whether or not a medal inserted from the medal slot is appropriate based on a detection state of the inserted medal sensor;
Error processing means for executing predetermined error processing based on the fact that the continuous detection time of medals by the inserted medal sensor exceeds a predetermined maximum flow-down time;
Invalidating means for invalidating detection by the inserted medal sensor when the first switching control means switches the medal flow path to the discharge side path;
Invalidation canceling means for canceling the invalidation of detection by the inserted medal sensor when the time to be invalidated has passed,
With
The inserted medal sensor includes a first inserted medal sensor and a second inserted medal sensor arranged along the take-in path,
The determination means determines that the medal inserted from the medal slot is appropriate on the condition that the detection order detected by the first inserted medal sensor and the second inserted medal sensor is normal. ,
Of the first inserted medal sensor and the second inserted medal sensor, an inserted medal sensor located upstream is disposed so as to be close to the flow path switching means,
The invalidation time is longer than the maximum flow-down time from the time when the invalidation means invalidates the detection by the insertion medal sensor, and the display result is derived to the variable display device from the start of the game, and the game The time is set to be shorter than the shortest time required for one game until the game ends.
Further, the direction of the light projecting portion and the light receiving portion of one of the first inserted medal sensors is opposite to the direction of the light projecting portion and the light receiving portion of the other inserted medal sensor. It is characterized by preventing fraud using a fraudulent instrument having a light emitting element mounted on only one side .
According to this feature, medals inserted on condition that the detection order of the first insertion medal sensor and the second insertion medal sensor provided along the flow-down direction of the take-in path is normal are appropriate. Therefore, the detection pattern of the first insertion medal sensor and the second insertion medal sensor is complicated, and it becomes difficult to reproduce by the light emitting element mounted on the unauthorized device described above. Since the direction of the light projecting portion and the light receiving portion of one inserted medal sensor is opposite to the direction of the light projecting portion and the light receiving portion of the other inserted medal sensor, When using a fraudulent instrument equipped with a light-emitting element to misdetect the insertion of a medal, the light-emitting element must be mounted on both sides of the board, and the thickness of the instrument increases and the illegal instrument is inserted into the medal slot. Throw from It becomes difficult to insert to the position of the medal sensor, it is possible to effectively suppress the abuse by unauthorized device equipped with such a light-emitting element. In addition, although the flow path switching means switches the medal flow down path to the return path, the medal may be swallowed by the momentum that has been thrown in. In this case, the time for the medal to flow down is normal. In many cases, it takes longer than the time to flow down, but detection by the insertion medal sensor is invalid from when the flow path switching means switches the flow path of medals to the return path until the invalidation time elapses. The invalidation time when the detection by the inserted medal sensor is invalidated is set longer than the maximum detection time for determining that the medal is jammed in the take-in route, The swallowing time is long when swallowing occurs because the detection time of medals flowing down the take-in route is sufficiently secured by swallowing medals It is possible to prevent error judgment by it.
Note that the predetermined number of bets is at least one bet number, and a game can be started by setting a bet number of two or more or setting a maximum bet number. good.
In addition, taking in the inserted medals for use in setting the bet number is not only taking in the inserted medals in order to set the bet number directly, but also setting the inserted medals in the bet number setting. It also includes taking in as a credit for use for storage inside.

A slot machine according to claim 2 of the present invention is the slot machine according to claim 1 ,
The inserted medal sensor includes a third inserted medal sensor in addition to the first inserted medal sensor and the second inserted medal sensor,
The first insertion medal sensor and the second insertion medal sensor are arranged at a position where one edge of the upper edge or the lower edge of the medal flowing down the take-in path can be detected,
The third inserted medal sensor is an upper edge of a medal flowing between the first inserted medal sensor and the second inserted medal sensor arranged along the take-in path and flowing down the take-in path. Part or lower edge part is arranged at a position where an edge part different from the first insertion medal sensor and the second insertion medal sensor can be detected,
The determination means is a medal inserted from the medal slot on condition that the detection order detected by the first inserted medal sensor, the second inserted medal sensor, and the third inserted medal sensor is normal. It is characterized by determining that is appropriate.
According to this feature, the detection order of the first, second, and third inserted medal sensors is normal even when an illegal act is performed that causes the inserted medal sensor to perform a false detection by rotating a semi-disc shaped disk. Since it becomes different from the detection order by the flow of medals, it is possible to detect fraud.

A slot machine according to claim 3 of the present invention is the slot machine according to claim 1,
The error determining means is characterized in that an error is determined even when a continuous medal detection time by the inserted medal sensor is less than a predetermined minimum detection time.
According to this feature, when the flow time of a medal detected by the inserted medal sensor is less than the flow time of a medal that flows normally, for example, even when fraud using radio waves is performed, Can be detected.

A slot machine according to claim 4 of the present invention is the slot machine according to claim 1 or 3 ,
A payout device for paying out the medal;
The error processing means immediately executes the error processing when the error determination means determines an error when the medal payout operation is not performed by the payout device, and the medal payout operation is performed by the payout device. When the error determination means makes an error determination when waiting, the error processing is executed after the payout operation is completed.
According to this feature, when a medal payout operation is performed by the payout device, the error processing is executed after the completion of the operation, and the control of the payout operation and the error processing do not overlap, so that the control load can be reduced.

  Examples of the present invention will be described below.

  An embodiment of a slot machine to which the present invention is applied will be described with reference to the drawings. As shown in FIG. 1, the slot machine 1 of this embodiment includes reels 2L, 2C in which a plurality of types of symbols are arranged on the outer periphery. 2R (hereinafter also referred to as a left reel, a middle reel, and a right reel) are juxtaposed in the horizontal direction, and three consecutive symbols among the symbols arranged on these reels 2L, 2C, 2R are the slots machine 1 It arrange | positions so that it can see from the see-through | perspective window 3 provided in the front.

  The reels 2L, 2C, and 2R are rotated by reel motors 34L, 34C, and 34R (see FIG. 2) provided correspondingly, so that the symbols of the reels 2L, 2C, and 2R are continuous with the see-through window 3. In addition to the display being changed, the rotation of the reels 2L, 2C, and 2R is stopped, and three consecutive symbols are derived and displayed on the fluoroscopic window 3 as display results.

  Further, in the slot machine 1 of this embodiment, a medal insertion unit 4 into which medals can be inserted, a one-BET switch 5 and a MAXBET switch 6 which are operated when setting a bet number using credits, a game is started. A start switch 7 that is operated at the time, and stop switches 8L, 8C, and 8R that are operated when stopping the rotation of the reels 2L, 2C, and 2R are provided.

  Further, in the slot machine 1 of the present embodiment, a take-in flow path 302 (see FIG. 3A) for guiding medals inserted from the medal insertion unit 4 to a hopper tank (not shown) or a medal payout hole. A medal selector 300 (see FIG. 3) that distributes to any one of the discharge side flow paths 303 (see FIG. 3 (a)) leading to 9 (see FIG. 1) is provided. Unauthorized medals with different diameters and thicknesses are sorted by the medal selector 300 and returned from the medal payout holes 9.

  In addition, the medal selector 300 is provided with a flow path switching solenoid 36 (see FIG. 2) for selectively switching the flow path of the flowing medal to either the intake side flow path 302 or the discharge side flow path 303. It has been. In the normal state, the flow path switching solenoid 36 is energized, and medals flowing down in this state flow down the intake side flow path 302 and are detected by the insertion medal sensors 31a to 31c (see FIGS. 2 and 3A). After being done, it is stored in the hopper tank. When the medal cannot be inserted, the excitation of the flow path switching solenoid 36 is released, the flow path is switched to the discharge side flow path 303 and returned from the medal payout hole 9.

  When a game is played in the slot machine 1 of the present embodiment, first, medals are inserted from the medal insertion unit 4 or a bet number is set using credits. To use credits, the MAX BET switch 6 or the single BET switch 5 may be operated. When a predetermined number of bets are set, the winning lines L1, L2, L2 ′, L3, and L3 ′ (see FIG. 1) are enabled according to the set bets, and the operation of the start switch 7 is enabled That is, the game can be started. The predetermined number of bets may be at least one bet number.

  When the start switch 7 is operated in a state where the game can be started, the reels 2L, 2C, and 2R rotate, and the symbols of the reels 2L, 2C, and 2R continuously vary. If any one of the stop switches 8L, 8C, 8R is operated in this state, the rotation of the corresponding reels 2L, 2C, 2R is stopped, and the display result is derived and displayed.

  Then, when all the reels 2L, 2C, 2R are stopped, one game is finished, and is determined in advance on any of the pay lines L1, L2, L2 ′, L3, L3 ′ activated according to the number of bets. When the given symbol combination stops as a display result of each reel 2L, 2C, 2R, a winning occurs, and a predetermined number of medals are awarded to the player and added to the credit Is done. When the credit reaches the upper limit (50 in this embodiment), medals are paid out directly from the medal payout hole 9 (see FIG. 1).

  FIG. 2 is a block diagram showing a configuration of the slot machine 1. As shown in FIG. 2, the slot machine 1 is provided with a game control board 40 and an effect control board 90. The game state is mainly controlled by the game control board 40, and the effect control board 90 responds to the game state. The production is controlled.

  The game control board 40 is connected with the above-described single BET switch 5, MAXBET switch 6, start switch 7, stop switches 8L, 8C, and 8R, and detects a medal inserted from the medal insertion unit 4. The medal sensors 31a to 31c, the payout sensor 33 that detects medals paid out from the medal payout hole 9, and the reel sensor 35 that detects the reference positions of the reels 2L, 2C, and 2R are connected. A detection signal is input.

  The game control board 40 is connected to the reel motors 34L, 34C, 34R described above, and the hopper motor 32 for paying out the medals stored in the hopper tank from the medal payout hole 9, as described above. A flow path switching solenoid 36 is connected, and these electric components are driven based on control of a main control unit 41 (described later) mounted on the game control board 40.

  The game control board 40 includes a CPU that performs calculations according to a predetermined procedure, a ROM that stores CPU control programs and various data tables, a main control unit 41 that includes a RAM that writes and reads necessary data, and a game control board. 40, a switch circuit 42 to which a detection signal input from the sensor is input, a motor circuit 43 for controlling the driving of the reel motors 34L, 34C, 34R, and the like are mounted. In response to detection signals from switches and sensors connected to the game control board 40, various controls are performed in accordance with the progress of the game.

  The effect control board 90 is connected with a liquid crystal display 51 (see FIG. 1) disposed on the front surface of the slot machine 1, an effect LED 52, speakers 53 and 54, and a reel lamp 55. It is driven on the basis of control by a later-described sub-control unit 91 mounted on the control board 90.

  The effect control board 90 includes a sub-control unit 91 having the same CPU, ROM, and RAM as the main control unit 41, a liquid crystal drive circuit 92 that controls the driving of the liquid crystal display 51 connected to the effect control board 90, and an effect. A lamp drive circuit 93 that performs drive control of the LED 52, a sound output circuit 94 that performs sound output control from the speakers 53 and 54, and the like are mounted, and the sub-control unit 91 is a main control mounted on the game control board 40. In response to a command transmitted from the unit 41, various controls are performed to produce an effect.

  3A and 4A are cross-sectional views showing the structure of the medal selector 300 provided in the slot machine 1 of this embodiment, and FIG. 3B is a cross-sectional view taken along the line AA in FIG. 4B is a cross-sectional view taken along line BB in FIG. 4A, FIG. 5A is an enlarged view of inserted medal sensors 31a to 31c provided in the medal selector 300, and FIG. FIG. 5C is a schematic view of a fraudulent instrument, and FIG. 5C is a perspective view showing an arrangement state of inserted medal sensors 31a and 31c.

  As shown in FIG. 3 (a), the medal selector 300 has an insertion channel 301 through which medals inserted from the medal insertion unit 4 flow down, and a take-in side that guides the medals flowing down the insertion channel 301 to the hopper tank. A flow path 302 is formed. Further, as shown in FIGS. 3A and 3B, below the input flow path 301, there are a flow path switching plate 304 that swings around the shaft 304 a by the excitation of the flow path switching solenoid 36 and the input flow path 301. A discharge-side channel 303 is provided for guiding the medals dropped from the medals to the medal payout holes 9.

  When the flow path switching solenoid 36 is not excited, the flow path switching plate 304 has its upper end 304b housed in a recess 305 provided in the medal selector body as shown in FIGS. Since the charging flow path 301 and the discharge side flow path 303 are in communication with each other, the medal flowing down the input flow path 301 falls into the discharge side flow path 303 and is discharged from the medal payout hole 9. Is done. 4A and 4B, the flow path switching plate 304 has a shaft 304a as a fulcrum at the top of the flow path switching plate 304, as shown in FIGS. 4A and 4B. By swinging in the direction (arrow direction), the upper end portion 304 b of the flow path switching plate 304 protrudes from the recess 305, so that the medal flowing down the input flow path 301 is the upper end portion 304 b of the flow path switching plate 304. Along the intake side flow path 302 and guided to the hopper tank.

  Further, as shown in FIG. 4 (a), in the take-in flow path 302, inserted medal sensors 31a to 31c (hereinafter referred to as inserted medal sensors 31a are sensors) that detect passage of medals flowing down the take-in flow path 302. 1, the inserted medal sensor 31 b is also referred to as sensor 2, and the inserted medal sensor 31 c is also referred to as sensor 3). Of these, the sensor 1 and sensor 3 are positioned along the upper portion of the intake-side flow path 302, that is, The passage of the upper end of the disk-shaped medal flowing down the intake side flow path 302 is disposed at a position where it can be detected on the upstream side and the downstream side, and the sensor 2 is positioned below the intake side flow path 302. That is, it is arranged at a position where the passage of the lower end portion of the disk-shaped medal flowing down the take-in flow path 302 can be detected. Further, the sensor 2 is disposed between the sensor 1 and the sensor 3, that is, at a position where a medal that normally flows down the intake-side flow path 302 is detected in the order of the sensor 1, the sensor 2, and the sensor 3.

  Further, in the present embodiment, as shown in FIG. 5A, the passage width (s) of the take-in flow path 302 is formed to be 1.5 times the medal thickness (m). Further, the sensors 1 to 3 include a light projecting unit 37 and a light receiving unit 38, and the light receiving unit 38 blocks light from the light projecting unit 37 when a medal passes between the light projecting unit 37 and the light receiving unit 38. A photo sensor that detects the passage of a medal by detecting it is used, and the separation width between the light projecting unit 37 and the light receiving unit 38, that is, the width of the space through which the medal passes is 1 of the medal thickness (m). A photosensor formed 5 times is used.

  Further, the sensor 1 and the sensor 3 arranged at positions where the upper end portion of the disk-shaped medal flowing down the intake side flow path 302 can be detected on the upstream side and the downstream side are shown in FIG. As shown, the direction of one light projecting unit 37 and the light receiving unit 38 is arranged opposite to the direction of the other light projecting unit 37 and the light receiving unit 38.

  As described above, in this embodiment, the directions of the light projecting unit 37 and the light receiving unit 38 of the sensor 1 and the sensor 3 arranged on the upstream side and the downstream side are arranged in opposite directions. In the case of using a fraudulent instrument having the above in the slot machine 1, as shown in FIG. 5 (c), light emitting elements such as LEDs must be mounted on both sides of the board. This increases the thickness of the fraudulent instrument and makes it difficult to insert the fraudulent instrument from the medal insertion part 4 to the position where the sensors 1 to 3 are disposed. It can be effectively suppressed.

  Furthermore, as described above, the passage width of the intake-side flow path 302 is formed slightly wider than the thickness of the medal, and the separation width between the light projecting unit 37 and the light receiving unit 38 is larger than the thickness of the medal. A photosensor formed slightly wider is used. That is, the light projecting unit 37 and the light receiving unit 38 are arranged so as to be slightly wider than the thickness of the medal. As a result, it is almost impossible to dispose an unauthorized instrument having a thickness equal to or greater than the thickness of the medal between the light projecting unit 37 and the light receiving unit 38 without disturbing the flow of the medal. Actions can be more effectively suppressed.

  In the present embodiment, the passage width of the intake-side flow path 302 is formed slightly wider than the medal thickness, and the light projecting portion 37 and the light receiving portion 38 are slightly wider than the medal thickness. The distance between the medal insertion section 4 and the sensor 3 disposed on the most downstream side (including the distance between the light projecting section 37 and the light receiving section 38 disposed on the path) is medal. If it is formed slightly wider than the thickness, the same effect as described above can be obtained.

  Further, being formed slightly wider than the thickness of the medal means that it is formed to a width up to about twice the thickness of the medal. If the gap between the light receiving portion 38 and the light receiving portion 38 is too wide, it is easy to insert a fraudulent instrument, and if it is too narrow, the medal may be clogged. Therefore, the width is about 1.2 to 1.5 times the thickness of the medal. More preferably, it is formed.

  In addition, although not implemented in this embodiment, on the medal passage, there is no hindrance to the flow of medals in the flow direction, but a reverse valve that restricts movement of the medals in the reverse direction may be provided. This makes it difficult for the light emitting element to be caught by the reverse valve when removing the illegal instrument once inserted, and even in this case, the illegal act by the illegal instrument equipped with the light emitting element is more effectively performed. Can be suppressed.

  FIGS. 6A to 6F are diagrams illustrating the flow situation of medals that normally flow down the intake-side flow path 302, that is, medals that flow in a normal direction (right direction in the drawing).

  As shown in FIGS. 6A to 6F, the medal that normally flows down the intake-side flow path 302 flows down to the right side in the drawing, so that the sensor 1, the sensor 2, and the sensor 3 in that order. Passage is detected. Specifically, first, the upper end of the medal is detected by the sensor 1 at the upper end on the upstream side of the intake side flow path 302, and then the lower end of the medal is detected by the sensor 2 at the lower end of the intake side flow path 302. The upper end of the medal is detected by the sensor 3 at the upper end on the downstream side of the insertion-side flow path 302.

  The transition of the detection state by the sensors 1 to 3 of the medals that normally flow down the intake side flow path 302, that is, the history of the change of the detection state by the sensors 1 to 3 is always as shown in the timing chart of FIG.

  Specifically, states ab (sensor 1: on, sensor 2: off, sensor 3: off) where only sensor 1 is detected, states bc (sensor 1) where both sensor 1 and sensor 2 are detected : On, sensor 2: on, sensor 3: off), state cd (sensor 1: on, sensor 2: on, sensor 3: on), sensor 2, sensor 3 Are detected (de: sensor 1: off, sensor 2: on, sensor 3: on), and only the sensor 3 is detected (e: sensor 1: off, sensor 2: off, sensor 3). : On), the detection state of the sensors 1 to 3 changes.

  As described above, in this embodiment, the transition of the detection state by the sensors 1 to 3 of the medals that normally flow down the intake-side flow path 302 is always the same pattern state transition, so the transition of the detection state by the sensors 1 to 3 When the state changes to a different state, an abnormality in the state transition is determined, and fraud related to the medal insertion can be detected.

  For example, in the medal selector 300 of the present embodiment, the sensors 1 and 3 are disposed at positions where the passage of the upper end of the medal flowing down the take-in flow path 302 can be detected on the upstream side and the downstream side, respectively. Therefore, as shown in FIG. 8A, when the flow direction is different, that is, when an illegal act of pulling a medal once inserted from the outside and using it again, so-called reverse is performed. As shown in FIG. 8B, the sensor 3, the sensor 2, and the sensor 1 are detected in this order. That is, since the sensor 3 provided on the downstream side of the sensor 1 is detected earlier, the abnormality of the state transition is determined at the time (e1 in the figure) when the sensor 3 is detected earlier than the sensor 1. It is possible to detect that reversion has been performed.

  Further, in the medal selector 300 according to the present embodiment, medals flowing down the take-in channel 302 based on the detection order of medals by the sensors 1 and 2 respectively arranged on the upstream side and the downstream side of the take-in channel 302. The flow direction of the medals can be detected, and the flow direction of the medals can be reliably detected with a simple configuration.

  In the medal selector 300 of the present embodiment, the sensor 2 that detects the passage of the lower end of the medal is disposed between the sensors 1 and 3 that detect the passage of the upper end of the medal. In other words, the medal that normally flows down the intake-side flow path 302 is arranged at a position where the sensor 1, the sensor 2, and the sensor 3 are detected in this order, and as shown in FIG. When a fraudulent act that causes erroneous detection by rotating the so-called half medal rotation is performed, the sensor 1, the sensor 3, and the sensor 2 are detected in this order. That is, when such a fraud is performed, the detection order by the sensors 1 to 3 is different from the detection order of medals that normally flow down, and therefore the detection order by the sensors 1 to 3 normally flows down. An abnormality in the state transition is determined at a time (e2 in the figure) different from the medal detection order, and it can be detected that half a medal has been rotated.

  Next, the control content of the inserted medal determination process executed by the main control unit 41 will be described below based on the flowchart of FIG.

  The inserted medal determination process is a process for monitoring the insertion of medals based on the detection status of the sensors 1 to 3, and is a timer interrupt process executed at predetermined intervals (0.56 ms in this embodiment). It is a process to be executed.

  First, in the inserted medal determination process, when the medal cannot be accepted, that is, the excitation of the flow path switching solenoid 36 is released, and the medal flow path is changed from the intake side flow path 302 to the discharge side flow path 303. It is confirmed whether or not the detection invalid time (500 ms) has elapsed since the time of switching to (S1), and if the detection invalid time (500 ms) has not elapsed, the medal cannot be accepted. After adding 1 to the value of the unacceptable time counter for measuring the time (S2), the process is terminated. That is, even if medals are detected by the sensors 1 to 3 until the detection invalid time elapses after the medal reception is impossible, the detection is ignored.

  In addition, when the detection invalid time (500 ms) has elapsed since the medal cannot be accepted in step S1, the time from when the medal cannot be accepted is measured. After clearing the value of the unacceptable time counter for performing (S3), the detection states of the sensors 1 to 3 are acquired (S4), and the sensors 1 to 1 are acquired based on the acquired detection states of the sensors 1 to 3 and their transitions. It is checked whether or not any of the sensors 3 has been turned on from the state in which all 3 are turned off (S5).

  When any of the sensors 1 to 3 is changed from the off state to the on state, a start prohibition flag for invalidating the detection of the start switch 7 is set (S6), and the step of S4 The transition of the detection state of the sensors 1 to 3 is updated based on the detection state acquired in (S7). If any of the sensors 1 to 3 is not changed from the off state to the on state in step S5, the process proceeds to step S7, and based on the detection state acquired in step S4. The detection state transition of the sensors 1 to 3 is updated.

  Then, when it becomes possible to insert only one more medal (for example, when the maximum bet number is set and one medal is inserted to reach the credit limit, If the maximum number of bets has already been reached and a single medal is inserted, the maximum number of bets can be determined by inserting one medal with the addition of medals restricted. In the case where the final medal flag is set, it is confirmed whether or not the final medal flag is set (S8). If the final medal flag is set, whether or not the sensor 1 is on based on the detection state of the sensors 1 to 3 updated in step S4, that is, whether or not a medal is detected by the sensor 1 is determined. (S9), if the sensor 1 is in the ON state, it is further confirmed whether or not the continuous detection time, that is, the time from the start of medal detection is 2 ms or more (S10). If the time is 2 ms or longer, an unacceptable flag is set (S11).

  The unacceptable flag is a flag indicating that the excitation of the flow path switching solenoid is to be released. When this flag is set, the excitation of the flow path switching solenoid is released in the subsequent processing, and the medal flow path is taken in. The side flow path 302 is switched to the discharge side flow path 303. Note that it is preferable to check whether the continuous detection time is 2 ms or more when the sensor 1 is in the on state in step S9 because it can prevent erroneous detection due to noise or the like. However, in step S9, the sensor 1 If the ON state is detected, the unacceptable flag may be set regardless of the detection time.

  After the steps S8 to S11, it is confirmed whether or not the detection state transition of the sensors 1 to 3 updated in the step S4 is normal (S12). Specifically, if the detection state transition of the sensors 1 to 3 updated in step S4 matches the state transition shown in FIG. On the other hand, as shown in FIG. 8B, the sensor 2 or the sensor 3 changes to on before the sensor 1 changes to on (e1 in the figure), or as shown in FIG. 9B. When the sensor 2 changes from 1 to on but before the sensor 2 changes to on (e2 in the figure), that is, the detection states of the sensors 1 to 3 change in an order different from the normal state transition. In this case, it is determined that there is an abnormality at that time.

  If the detection state transition of the sensors 1 to 3 is normal in step S12, whether or not the insertion of medals has been completed, that is, whether or not the detection state transition of the sensors 1 to 3 has been completed normally. Confirm (S13).

  If the insertion of medals has been completed in step S13, the minimum detection time (10 ms) in which the continuous detection time (here, the time required for a to f shown in FIG. 7) is the minimum time required for these detections. Whether or not (S14), and if the continuous detection time is equal to or longer than the minimum detection time (10 ms), the medal can be accepted based on whether or not the acceptance impossible flag is set, That is, the flow path switching solenoid 36 is excited, the medal flow path is set as the take-in flow path 302, and it is confirmed whether or not a bet number or credit can be added (S15).

  If the medal can be accepted in step S15, a medal insertion flag indicating that the medal has been inserted normally is set (S16), and a continuous detection time counter for measuring the continuous detection time is set. After clearing the transition of the values and detection states of the sensors 1 to 3 (S17, S18), the start prohibition flag is cleared and the process is terminated (S19). If the medal insertion flag is set in step S16, the bet number is incremented by 1 if the bet number can be set in the subsequent processing. In addition, if the bet number has reached the maximum bet number, 1 is added to the credit. If the medal cannot be accepted in step S15, the value of the continuous detection time counter and the transition of the detection state of the sensors 1 to 3 are cleared without setting the medal insertion flag (S17, S18). ), The start prohibition flag is cleared, and the process ends (S19). That is, the detection of medals by the sensors 1 to 3 is ignored.

  Further, if the insertion of medals has not been completed in step S13, all of the sensors 1 to 3 are in an off state, that is, whether or not any sensor 1 to 3 has detected a medal. (S20), if any one of the sensors 1 to 3 is in the on state, it is within the continuous detection time, that is, the elapsed time from the time when the sensor 1 first detected the medal. It is confirmed whether it is within the maximum detection time (100 ms) which is the maximum time required for these detections (S21). If the continuous detection time is within the maximum detection time (100 ms), 1 is added to the continuous detection time counter. (S22), and the process ends.

  If no medal is detected in any of the sensors 1 to 3 in step S20, it is confirmed whether or not the final medal flag is set (S23), and if the final medal flag is set. Further, it is confirmed whether or not the unacceptable flag is set (S24). If the unacceptable flag is set, after clearing the unacceptable flag (S25), the value of the continuous detection time counter and the sensors 1 to 3 is cleared (S17, S18), the start prohibition flag is cleared and the process is terminated (S19). In other words, even if only one more medal can be inserted, the sensor 1 is detected and the unacceptable flag is set, and even if the flow path of the medal switches from the intake-side flow path 302 to the discharge-side flow path 303, When the sensors 1 to 3 are not detected because the insertion has not been completed, the acceptance disapproval flag is cleared and the medal flow path is switched from the discharge side flow path 303 to the intake side flow path 302 again. It is like that. If the final medal flag is not set in step S23 or if the unacceptable flag is not set in step S24, the value of the continuous detection time counter and the transition of the detection state of sensors 1 to 3 are cleared. (S17, S18), the start prohibition flag is cleared and the process is terminated (S19).

  If the detection state transition of the sensors 1 to 3 is different from the normal state transition in step S12, whether or not the sensors 1 to 3 are all changed from the off state to the on state of the sensor 1 only. After confirming (S26), if all the sensors 1 to 3 are changed from the off state to the on state only of the sensor 1, the value of the continuous detection time counter and the transition of the detection state of the sensors 1 to 3 are cleared. (S17, S18), the start prohibition flag is cleared and the process is terminated (S19). That is, even if the transition of the detection state of the sensors 1 to 3 is different from the normal state transition, the detection is ignored if the sensors 1 to 3 are all changed from the off state to the on state of the sensor 1 only. The

  Further, when the continuous detection time is less than 10 ms which is the minimum detection time in the step of S14, or when the continuous detection time exceeds 100 ms which is the maximum detection time in the step of S21, or all are turned off in the step of S26. If it is determined that only the sensor 1 has not changed from the current state to the on state, it is determined that the input error has occurred, a charging error flag indicating that is set (S27), and the process ends. By setting this insertion error flag, an error process, which will be described later, is executed in a later process, and the progress of the game is disabled.

  Further, as described above, the start prohibition flag is set from the time when any one of the sensors 1 to 3 is turned on from the time when the sensors 1 to 3 are turned off until all the sensors are turned off, and the detection of the start switch 7 is invalidated. It has come to be. For this reason, during the detection of medals by the sensors 1 to 3, since the start switch 7 is effectively detected and the game does not start, the medals are not detected nor returned normally. Ingestion (so-called swallowing) can be prevented.

  In the slot machine 1 according to the present embodiment, when the main control unit 41 follows the control as described above, the insertion error is determined in the situation described below.

  First, when the detection state transition of the sensors 1 to 3 is different from the normal state transition, that is, as shown in FIG. 8B, the sensor 2 or the sensor 3 is turned on before the sensor 1 is turned on. In the case (e1 in the figure), or as shown in FIG. 9 (b), when the sensor 2 changes to on before the sensor 2 changes to on (e2 in the figure). A throw-in error is determined when the detection states of the sensors 1 to 3 change in an order different from the normal state transition. As a result, it is possible to reliably detect that the above-mentioned fraudulent acts such as reversal and half-medal rotation have been performed.

  In this embodiment, as shown in FIGS. 11A and 11B, when the medal cannot be received when another medal is inserted, when the sensor 1 detects the medal, Before other sensors detect the medal, the medal flow path is switched from the intake-side flow path 302 to the discharge-side flow path 303. As a result, in a state where only one more medal can be inserted, the flow path of the medal is switched from the intake side flow path 302 to the discharge side flow path 303 as early as possible after the last one medal is inserted. Further, even when medals flow down, it is possible to prevent the medals from being taken inside.

  However, in this case, as shown in FIGS. 12 (a) and 12 (b), the sensor 1 may be detected but fall into the discharge side channel 303. In this case, the sensor 1 Since the sensor 2 is not turned on when it is turned off, the detection state transition of the sensors 1 to 3 is determined to be different from the normal state transition at that time (e3 in the figure), and an error is determined. It will end up. For this reason, in this embodiment, even when the detection state transitions of the sensors 1 to 3 are different from the normal state transitions, as shown in FIGS. When only the sensor 1 is changed to the on state, since it is not determined as an input error, determination of an unnecessary input error can be prevented.

  Even if the detection state transitions of the sensors 1 to 3 are normal state transitions, if the continuous detection time required for the detection exceeds 100 ms which is the maximum detection time, a throwing error is determined. . Thereby, it can be detected that medals are clogged in the intake side flow path 302.

  Further, even when the detection state transition of the sensors 1 to 3 is a normal state transition and the completion of insertion is detected, if the continuous detection time required for the detection is less than 10 ms which is the minimum detection time, A feed error is determined. Thus, for example, even when an illegal act that causes the sensors 1 to 3 to perform unauthorized detection using radio waves is detected.

  Further, as shown in FIG. 13A, the medal cannot be accepted, the excitation of the flow path switching solenoid 36 is released, and the flow path of the inserted medal is taken from the intake side flow path 302. The detection of the sensors 1 to 3 is ignored for a period from when switching to the discharge-side flow path 303 until 500 ms set as the detection invalid time elapses. That is, the detection of the sensors 1 to 3 is invalidated.

  In the slot machine 1 of the present embodiment, the detection state of the sensors 1 to 3 is constantly monitored because the above-described fraud such as reversal is not always performed, but the medal insertion cannot be accepted. When the intake-side flow path 302 is switched to the discharge-side flow path 303, the inserted medal flows down to the intake-side flow path 302 with the momentum of flowing down or the medal flowing down from behind. There is. In this case, it often takes a longer time than the time for the medal to flow down normally, and the continuous detection time exceeds 100 ms which is the maximum detection time, but an error is determined, but the medal cannot be accepted. Since the detection of the sensors 1 to 3 is invalidated until 500 ms determined as the detection invalid time elapses after entering the state, it becomes impossible to accept medal insertion, When switching from the path 302 to the discharge-side flow path 303, it is determined that a throw-in error has occurred even if the inserted medal flows down to the intake-side flow path 302 due to the force of flowing down or the force of medals flowing down from the rear. Can be prevented.

  In such a case, as described above, it often takes a long time compared to the time when the medal normally flows down. However, in this embodiment, the detection invalid time is the maximum for determining clogged medal. Since it is set longer than the detection time and a time for invalidating the detection of medals flowing down the take-in flow path 302 is secured, it is possible to reliably prevent the occurrence of the insertion error.

  Further, in order to prevent the occurrence of a throw-in error, it is preferable to set the detection invalid time as long as possible. However, if the detection invalid time is excessively long, if the time required for one game is short, the next game is Since there is a possibility that detection of medals inserted in this manner may be invalidated, it is necessary to make the detection invalid time shorter than the shortest time required for one game.

  In the case of the present embodiment, as shown in FIG. 13B, the time from the start of the game until the stop operation of each reel becomes effective is 100 ms at the shortest, and the stop operation of any reel is performed. After the reels to be stopped are stopped, the time required for the remaining reels to be stopped again becomes a minimum of 200 ms (in the case of no symbol pull-in). The shortest theoretical time required is 500 ms. In addition, the time from the start of the game until the stop operation of each reel becomes effective normally takes 100 ms or more, and the time required for the stop operation of the remaining reels to become effective again after the reel stops is also controlled. In many cases, it takes 200 ms or more, so the actual minimum time required for one game is over 500 ms.

  For this reason, in this embodiment, the detection invalid time is set as long as possible in the range of 500 ms, that is, the shortest time required for one game, and the detection time of the medal flowing down the take-in flow path 302 is invalidated. Is sufficiently secured, and it is possible to reliably prevent the occurrence of an insertion error and to avoid the inconvenience that the detection of medals inserted in the next game is invalidated.

  Further, in this embodiment, the detection of the sensors 1 to 3 is ignored by ignoring the detection of the sensors 1 to 3 until the detection invalid time elapses after the medal insertion cannot be accepted. The detection is invalidated, and the detection can be invalidated only by changing the control without changing the circuit configuration for detecting the sensors 1 to 3.

  Further, the main control unit 41 described above disables the progress of the game until the error is canceled by the reset operation when it is determined that the insertion error is detected in the insertion medal determination process, that is, when the insertion error flag is set. Then, an error process is executed in which an error code is displayed on a game number display (not shown) to notify the fact.

  FIG. 14 is a timing chart showing the execution timing of error processing based on the occurrence of the input error.

  The trigger for executing the error process based on the setting of the inserted medal error flag in the inserted medal determination process differs depending on whether or not the hopper motor 32 is performing a medal payout operation at that time.

  Specifically, when the inserted medal error flag is set in the inserted medal determination process, if the medal payout operation by the hopper motor 32 is not performed, error processing is executed at that time, and the progress of the game is not performed. Control as possible. In other words, the progress of the game is disabled by determining the insertion error.

  In addition, when the inserted medal error flag is set in the inserted medal determination process, if a medal payout operation is being performed by the hopper motor 32, error processing is executed after the completion, and the game does not progress. Control as possible.

  As described above, in this embodiment, when an insertion error is determined in the insertion medal determination process, the progress of the game is disabled, and the progress of the game can be stopped until the error is resolved. Therefore, it is possible to prevent the game from proceeding in a state in which the player is in an unauthorized state or has a defect such as a clogged medal.

  In addition, in the error processing, in addition to disabling the progress of the game, an error code is displayed on the game number display device to notify that, so that a game attendant or the like can promptly respond to the occurrence of the insertion error. Can respond.

  Further, in this embodiment, even when the insertion error is determined in the insertion medal determination processing, if the medal payout operation by the hopper motor 32 is performed, the error processing is executed after waiting for the completion. Therefore, it is not necessary to perform complicated control such as interrupting the medal payout operation by the hopper motor 32 at the time of determination of the insertion error and restarting the medal payout operation by the hopper motor 32 once the error is released. The control load on the main control unit 41 can be reduced.

  Although the embodiments of the present invention have been described with reference to the drawings, the present invention is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. Needless to say.

  For example, in the above embodiment, the detection invalid time is set to 500 ms, but can be arbitrarily changed as long as it is set to be longer than at least the maximum detection time for detecting clogged medals.

  In the above embodiment, a normal slot machine capable of playing a game using medals is used as a game medium. However, the present invention is not limited to this, and a pachinko ball is used as a game medium. You may apply to the slot machine which plays a game.

  Each element in the embodiment corresponds to the present invention as follows.

Claim 1 of the present invention provides
A game can be started by setting a predetermined number of bets for one game, and variable display devices (reels 2L, 2C, 2R) is a slot machine 1 in which one game is completed by deriving and displaying a display result, and winning can be generated according to the display result of the variable display device,
A take-in path (take-in flow path 302) for taking in the medals inserted from the medal slot (medal slot 4) for use in setting the bet number;
A discharge path (discharge side channel 303) for discharging the medals inserted from the medal slot (medal slot 4) to the outside;
The flow path of medals inserted from the medal insertion slot (medal insertion slot 4) is switched to either the discharge path (discharge side flow path 303) or the intake path (discharge side flow path 303). Flow path switching means (flow path switching plate 304, flow path switching solenoid 36, main control unit 41),
When the medal cannot be received, the flow path switching unit switches the flow path from the intake path (take-in flow path 302) to the discharge path (discharge-side flow path 303). First switching control means (flow path switching solenoid 36, main control unit 41);
When the medal can be received, the flow path switching means switches the flow-down path from the discharge path (discharge-side flow path 303) to the intake path (take-in flow path 302). 2 switching control means (flow path switching solenoid 36, main control unit 41),
It consists of a pair of light projecting parts (37) and a light receiving part (38) arranged at positions facing each other across the take-in path, and detects the blocking of light from the light projecting part to the light receiving part. Inserted medal sensors {inserted medal sensors 31a to 31c (sensors 1 to 3)} for detecting medals flowing down the take-in path;
Determining means for determining whether or not a medal inserted from the medal insertion slot (medal insertion slot 4) is appropriate based on a detection state of the insertion medal sensor {inserted medal sensors 31a to 31c (sensors 1 to 3)}. Main control unit 41 (inserted medal determination process)},
An error for executing predetermined error processing based on the fact that the continuous detection time of medals by the inserted medal sensor {inserted medal sensors 31a to 31c (sensors 1 to 3)} exceeds a predetermined maximum flow-down time (100ms). Processing means {main control unit 41 (processing to disable the progress of the game)};
When the first switching control means switches the medal flow path to the discharge side path (discharge side channel 303), the inserted medal sensors {inserted medal sensors 31a to 31c (sensors 1 to 3)}. Invalidating means for invalidating detection {main control unit 41 (processing for ignoring the detection state of the sensor)};
Invalidation canceling means {main control unit 41 (sensor detection) for canceling invalidation of detection by the inserted medal sensors {inserted medal sensors 31a to 31c (sensors 1 to 3)} at the time when the invalidation time has elapsed. Processing to resume state monitoring)},
With
The inserted medal sensor includes a first inserted medal sensor {inserted medal sensor 31a (sensor 1)} and a second inserted medal sensor {inserted medal sensor 31c (sensor 3)} arranged along the take-in path. Including
In the determination means, the detection order detected by the first inserted medal sensor {inserted medal sensor 31a (sensor 1)} and the second inserted medal sensor {inserted medal sensor 31c (sensor 3)} is normal. On the condition that the medal inserted from the medal slot (medal slot 4) is appropriate,
The inserted medal sensor {inserted medal sensor 31a (sensor 1)} located upstream of the first inserted medal sensor and the second inserted medal sensor is connected to the flow path switching means (flow path switching plate 304). Are placed close together,
The time to be invalidated is longer than the maximum flow down time (100 ms) from the time when the invalidating means invalidates the detection by the inserted medal sensor {inserted medal sensors 31a to 31c (sensors 1 to 3)}. In addition, the time (500 ms) is set to be shorter than the shortest time (time exceeding 500 ms) required for one game from the start of the game to the end of the game after the display result is derived on the variable display device. ,
Further, the light projecting unit and the light receiving unit of one of the first inserted medal sensors {inserted medal sensor 31a (sensor 1)} and second inserted medal sensor {inserted medal sensor 31c (sensor 3)}. Is arranged opposite to the direction of the light projecting portion and the light receiving portion of the other inserted medal sensor, thereby preventing fraud using an unauthorized instrument having a light emitting element mounted on only one side .

Claim 2 of the present invention provides
The inserted medal sensor includes a third inserted medal sensor in addition to the first inserted medal sensor {inserted medal sensor 31a (sensor 1)} and the second inserted medal sensor {inserted medal sensor 31c (sensor 3)}. {Insert medal sensor 31b (sensor 2)},
The first inserted medal sensor and the second inserted medal sensor are arranged at positions where one edge (upper end) of the medal flowing down the take-in path can be detected. And
The third inserted medal sensor is located between the first inserted medal sensor and the second inserted medal sensor arranged along the take-in path, and the take-in path (take-in side flow path 302). ) Is arranged at a position where an edge (lower end) different from the first inserted medal sensor and the second inserted medal sensor can be detected, of the upper edge or the lower edge of the medal flowing down
The determination means {main control unit 41 (inserted medal determination process)} has a normal detection order detected by the first inserted medal sensor, the second inserted medal sensor, and the third inserted medal sensor. It is characterized in that it is determined that the medal inserted from the medal slot is appropriate on the condition.

According to a third aspect of the present invention, the error determination means {main control unit 41 (inserted medal determination process)} is a continuous medal detection time by the inserted medal sensors {inserted medal sensors 31a to 31c (sensors 1 to 3)}. Is characterized in that an error is determined even when the minimum detection time (10 ms) is not satisfied.

Claim 4 of the present invention provides
A payout device (hopper motor 32) for paying out the medal;
The error processing means {main control unit 41 (processing for disabling the progress of the game)} is performed when the medal payout operation is not performed by the payout device. Determination process)} immediately executes the error process when the error is determined, and ends the payout operation when the error determination means determines an error when the payout device is performing the medal payout operation. It is characterized in that the error processing is executed after waiting.

It is a front view of the slot machine of the Example to which this invention was applied. It is a block diagram which shows the structure of a slot machine. (A) is sectional drawing which shows the structure of the medal selector provided in the slot machine, (b) is AA sectional drawing of (a). (A) is sectional drawing which shows the structure of the medal selector provided in the slot machine, (b) is BB sectional drawing of (a). (A) is an enlarged view of the inserted medal sensor provided in the medal selector, (b) is a perspective view showing an arrangement state of the inserted medal sensor, and (c) is a schematic diagram of an unauthorized instrument. . (A)-(f) is a figure which shows the flow situation of the medal in a medal selector. It is a timing chart which shows the transition of a normal detection state when the insertion medal sensor provided in the medal selector detects a medal. (A) is a figure which shows an example of fraud accompanying medal insertion, (b) is a timing chart which shows the transition of the detection state of the insertion medal sensor at that time. (A) is a figure which shows an example of fraud accompanying medal insertion, (b) is a timing chart which shows the transition of the detection state of the insertion medal sensor at that time. It is a flowchart which shows the control content of the insertion medal determination process which a main control part performs. (A) is a timing chart showing the switching state of the medal flow path when the inserted medal sensor is detected in a state where it becomes impossible to accept a medal by inserting another medal. (B) It is a figure which shows the flow situation of the medal at that time. (A) is a timing chart which shows an example of a transition of the detection state of an insertion medal sensor, and (b) is a figure which shows the flow situation of the medal at that time. (A) is a timing chart showing the valid / invalid control of the inserted medal sensor accompanying the flow path switching by the medal selector. (B) is a timing chart showing the structure of the shortest time required for one game. (A) (b) is a timing chart which shows the execution opportunity of the error process which a main control part performs.

Explanation of symbols

1 slot machine 2L, 2C, 2R reel 4 medal insertion part 31a-c insertion medal sensor (sensors 1-3)
36 flow path switching solenoid 37 light projecting section 38 light receiving section 41 main control section 302 intake side flow path 303 discharge side flow path

Claims (4)

The game can be started by setting a predetermined number of bets for one game, and the display result of the variable display device capable of changing the display state is derived and displayed, whereby one game is completed. , A slot machine in which a winning can be generated according to the display result of the variable display device,
A take-in route for taking in medals inserted from the medal slot for use in setting the bet number;
A discharge path for discharging the medals inserted from the medal slot to the outside;
A flow path switching means for switching a flow path of medals inserted from the medal insertion port to a flow path of either the discharge path or the intake path;
First switching control means for causing the flow path switching means to switch the flow path from the take-in path to the discharge path when a medal cannot be received;
Second switching control means for causing the flow path switching means to switch the flow-down path from the discharge path to the take-in path when a medal can be received;
It consists of a pair of light projecting units and light receiving units arranged at positions facing each other across the take-in route, and flows down the take-in route by detecting light blocking from the light projecting unit to the light receiving unit. An inserted medal sensor for detecting medals;
Determining means for determining whether or not a medal inserted from the medal slot is appropriate based on a detection state of the inserted medal sensor;
Error processing means for executing predetermined error processing based on the fact that the continuous detection time of medals by the inserted medal sensor exceeds a predetermined maximum flow-down time;
Invalidating means for invalidating detection by the inserted medal sensor when the first switching control means switches the medal flow path to the discharge side path;
Invalidation canceling means for canceling the invalidation of detection by the inserted medal sensor when the time to be invalidated has passed,
With
The inserted medal sensor includes a first inserted medal sensor and a second inserted medal sensor arranged along the take-in path,
The determination means determines that the medal inserted from the medal slot is appropriate on the condition that the detection order detected by the first inserted medal sensor and the second inserted medal sensor is normal. ,
Of the first inserted medal sensor and the second inserted medal sensor, an inserted medal sensor located upstream is disposed so as to be close to the flow path switching means,
The invalidation time is longer than the maximum flow-down time from the time when the invalidation means invalidates the detection by the insertion medal sensor, and the display result is derived to the variable display device from the start of the game, and the game is The time is set to be shorter than the shortest time required for one game until the game ends.
Further, the direction of the light projecting portion and the light receiving portion of one of the first inserted medal sensors and the direction of the light projecting portion and the light receiving portion of the other inserted medal sensor are opposite to each other. The slot machine is characterized by preventing fraud using a fraudulent instrument having a light emitting element mounted only on one side . The inserted medal sensor includes a third inserted medal sensor in addition to the first inserted medal sensor and the second inserted medal sensor,
The first insertion medal sensor and the second insertion medal sensor are arranged at a position where one edge of the upper edge or the lower edge of the medal flowing down the take-in path can be detected,
The third inserted medal sensor is an upper edge of a medal flowing between the first inserted medal sensor and the second inserted medal sensor arranged along the take-in path and flowing down the take-in path. Part or lower edge part is arranged at a position where an edge part different from the first insertion medal sensor and the second insertion medal sensor can be detected,
The determination means is a medal inserted from the medal slot on condition that the detection order detected by the first inserted medal sensor, the second inserted medal sensor, and the third inserted medal sensor is normal. The slot machine according to claim 1 , wherein the slot machine is determined to be appropriate.   2. The slot machine according to claim 1, wherein the error determination means determines an error even when a continuous medal detection time by the inserted medal sensor is less than a predetermined minimum detection time. A payout device for paying out the medal;
The error processing means immediately executes the error processing when the error determination means determines an error when the medal payout operation is not performed by the payout device, and the medal payout operation is performed by the payout device. 4. The slot machine according to claim 1 or 3 , wherein when the error determination means determines an error when the error is detected, the error processing is executed after completion of the payout operation.

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