JP4509617B2 - Game machine - Google Patents

Description

  The present invention relates to a gaming machine that launches a game ball into a game area by launching means.

  Conventionally, there is a pachinko machine in this kind of gaming machine. A general pachinko machine is configured such that a game area in which a large number of nails are planted faces a front surface of a device on a game board attached to the front surface of the device. When a hitting ball operating handle provided below the game board is operated, a game ball is launched and enters the game area through the ball launch area. The game ball launched into the game area is prevented from returning to the ball launch area by a return prevention member provided at the tip of the ball launch area. When game balls hit in a prize area such as a prize opening provided in the game area wins, a number of game balls corresponding to the prize contents are paid out to the player.

Some pachinko machines detect a game ball entering a game area with a sensor and count the number of detected game balls. In this pachinko machine, the number of game balls (safe balls) won in the winning area in the game area and the number of game balls (out balls) that did not win in the winning area and the hitting operation handle. By calculating the difference ball from the number of game balls that have been played, the presence or absence of fraud is determined. In determining the fraudulent act, it is necessary to calculate the difference ball in consideration of a so-called return ball that flows backward in the ball launch area without entering the game area from the ball launch area. For this reason, as shown in Patent Document 1 below, a pachinko machine has been proposed that detects a game ball with two transmission sensors arranged along the movement path of the game ball until it enters the game area. Yes. In this pachinko machine, the second transmission type sensor on the downstream side of the movement path of the game ball within a predetermined time after the passage of the game ball is detected by the first transmission type sensor on the upstream side of the movement path of the game ball. When it is detected that the game ball has passed, it is detected that the game ball has entered the game area.
JP 2000-308747 A (paragraphs [0077] to [0082])

  However, in the conventional pachinko machine, the passage of the game ball is detected by the first transmission type sensor, and the passage of the game ball is detected by the second transmission type sensor within a predetermined time. It is determined that a game ball has entered. For this reason, even if the game ball detected by the first transmission type sensor does not enter the game area and returns to the ball launching area, the game ball in the game area is detected within a predetermined time from the detection by the first transmission type sensor. When another game ball is detected by the second transmission type sensor, there is a problem that it is erroneously detected that the game ball has entered the game area and causes erroneous counting.

The present invention has been made to solve such a problem. A game area formed in front of the device, a launching means for launching a game ball to the game area, and a game fired by the launching means. In a gaming machine comprising a shot ball detecting means for detecting a ball, the shot ball detecting means is arranged at a predetermined interval on a path until a game ball launched from the launch means enters the game area. The game ball launched from the launch means enters the game area through the first launch ball detection means and the second launch ball detection means. When the first game ball detection means detects the game ball and outputs a detection signal that is turned on, and the second game ball detection means detects the game ball and is turned on. time and for outputting a detection signal is duplicated, A signal combining means for combining the signals from the first shot ball detecting means and the second shot ball detecting means, and when the signal combined by the signal combining means is detected for a predetermined time or more, And determining means for determining that the vehicle has entered.

  According to this configuration, when the detection signal from the first projecting ball detection unit and the detection signal from the second projecting ball detection unit are combined by the signal combining unit, and this combined signal is detected for a predetermined time or more, It is determined that the game ball has entered the game area. For this reason, when the passage of the game ball is not detected continuously by the first shot ball detection means and the second shot ball detection means, the synthesized signal is not detected for a predetermined time or more, so the game ball is within the game area. It is not judged to have entered. That is, after the passage of the game ball is detected by the first shot ball detecting means, if the game ball is not detected by the second shot ball detecting means at a predetermined timing, it is detected by the first shot ball detecting means. It is determined that the game ball has returned without entering the game area, and it is not determined that the game ball has entered the game area. Accordingly, the passage of the game ball is detected by the first shot ball detecting means, and the game ball has entered the game area only by detecting the passage of the game ball by the second shot ball detecting means within a predetermined time. Compared to a conventional gaming machine that is determined to be, it is possible to suppress erroneous counting that occurs when other game balls in the game area are detected by the second shot ball detection means.

  Further, the present invention is characterized in that the first projecting ball detecting means and the second projecting ball detecting means comprise proximity sensors.

  According to this configuration, since the detection range of the proximity sensor is wider than that of the transmission type sensor, it is possible to lengthen the detection time of the game ball by the first launching ball detection unit and the second launching ball detection unit. it can. When a transmissive sensor is used as the ball detection means, the detection time of the game ball at each sensor is short, and there is no time for the detection signals to overlap, so the detection signals from the sensors are combined with an overlap. This requires a plurality of flip-flop circuits. However, when a proximity sensor is used as the detection means, the detection signal of each sensor can be overlapped without using a special circuit, so that the OR (logical sum) is less expensive than a flip-flop circuit. A synthesized signal can be generated using a circuit. Therefore, according to the above configuration using the proximity sensor, it is possible to prevent erroneous counting while suppressing the manufacturing cost of the gaming machine. In addition, when using a proximity sensor, the signal synthesis means is composed of an OR circuit composed of fewer circuit elements than a flip-flop circuit. Therefore, it is difficult to be affected by external noise, and the occurrence of erroneous counting due to noise can be suppressed.

  The present invention also includes a ball launch area that guides the game ball launched from the launch means to the game area, and a return prevention member that prevents the game ball from returning from the game area to the ball launch area. The ball detection means is provided in the ball launch area, and the second shot ball detection means is provided in the game area.

  According to this configuration, the return prevention member prevents the game ball in the game area from returning to the ball launch area. For this reason, the game ball that has once entered the game area returns to the ball launch area, and the detection signals from the second shot ball detection means and the first ball launch detection means are combined, resulting in an erroneous count. Can be prevented.

  Further, the present invention is characterized in that the first projecting ball detecting means and the second projecting ball detecting means are provided in the vicinity of the return preventing member.

According to this configuration, since the distance between the first shot ball detecting unit and the second shot ball detecting unit is shortened and the combined signal is also shortened, it is determined by the determining unit that the game ball has entered the game area. The predetermined time until can be shortened. For this reason, it becomes difficult to receive the influence of an external noise, and it can make it difficult to produce the miscount by noise.
Moreover, this invention is characterized by providing the following structures.
The signal synthesis means comprises a signal synthesis circuit composed of an OR circuit, and the signal synthesis circuit is connected to the first launch ball detection means and the second launch ball detection means, and the first launch ball detection means and the first launch ball detection means. Storage areas corresponding to the respective signals from the two shot ball detecting means, and when the first shot ball detecting means and the second shot ball detecting means detect the passage of the game ball and output detection signals, The bit of the storage area corresponding to the signal is turned on, and the respective logical sums are taken and synthesized.
According to the present invention, signal combining processing can be easily performed.

  According to the present invention as described above, it is possible to make it difficult to cause an erroneous count of the game balls fired by the ball launching means as described above.

  Next, the best mode for carrying out the present invention will be described.

FIG. 1 is a perspective view showing a pachinko machine 1 according to the present embodiment. The pachinko machine 1 is provided with a transparent game board 12 in the center of the front surface, and a liquid crystal display device 13c provided behind the transparent game board 12 is observed through the board surface. Below the transparent gaming board 12, tray unit 11b is provided consisting of an upper pan 11b ₁ and the lower receiving plate 11b _2. The right side of the lower receiving plate 11b ₂ launching handle 13a is provided. A special symbol displayed via the transparent game board 12 is visually recognized on the liquid crystal display device 13c. When the special symbols displayed on the liquid crystal display device 13c are arranged in a predetermined jackpot combination, a so-called jackpot occurs.

Passing holes (not shown) are provided on the left and right sides of the portion 12a where the special symbol on the transparent game board 12 is visually recognized. In addition, a start winning opening 12b is provided at the bottom of the transparent game board 12. When the game ball T shot out on the board by operating the ball launch handle 13a wins the start winning opening 12b, the special symbol is variably displayed on the liquid crystal display device 13c and the special symbol game is started. Further, on the left and right sides of the start winning opening 12b, there are provided general winning openings 12c through which a predetermined number, for example, 10 winning balls are paid out when the game ball T wins. Although prize balls are paid out to the upper pan 11b ₁ dish unit 11b, an upper pan 11b ₁ is when full are paid out to the lower receiving tray 11b _2. Also, below the start winning opening 12b, there is provided a large winning opening 12d that opens and closes the door in the big winning game that is performed when the big winning prize is generated. Below the big winning opening 12d, there is provided an out opening 12e through which a game ball that has not won the starting winning opening 12b or the like enters.

The jackpot game is performed after the special symbol jackpot combination is stopped and displayed at the end of the special symbol game, and a predetermined number of, for example, ten game balls T are won in the big winning opening 12d, or for a predetermined time, for example, 30 seconds. Until the lapse of time, a maximum of 15 rounds of games in which the special winning opening 12d remains open is performed, for example. During the round, if the game ball T that has won the grand prize opening 12d wins a specific area called V zone provided inside the big prize opening 12d, it can continue to the next round. If the player does not win the V zone, it becomes a so-called puncture, and even before the 15th round is reached, the jackpot game is terminated at that round and ends. During the game, an effect is produced by lighting of the illumination LED 11a ₁ provided above the surface of the transparent game board 12.

FIG. 2 is an exploded perspective view of the pachinko machine 1. In the figure, the same parts as those in FIG. The pachinko machine 1 is configured by attaching a middle frame 13 to the front surface of a rectangular frame-shaped wooden frame 14. The middle frame 13 is pivotally supported on the left side of the wooden frame 14 so that it can be opened and closed on the front surface of the wooden frame 14. A transparent game board 12 is attached to the center of the front surface of the middle frame 13, and a pair of speakers 13b and 13b from which a game effect sound and the like are emitted are attached to the upper part. Further, the above-described firing handle 13 a is attached to the lower right portion of the front surface of the middle frame 13. The transparent gaming board 12 and the speakers 13b and 13b are covered with a glass door 11a, and the board surface of the gaming board 12 is observed from the transparent glass portion of the glass door 11a. The upper portion of the glass door 11a illuminations LEDs 11a ₁ are provided as described above. Further, the above-described dish unit 11 b is attached to the lower part of the middle frame 13.

A liquid crystal display device 13c is attached to the center of the back surface of the middle frame 13 so as to face the transparent game board 12, and a ball payout unit 15a and a substrate case unit 15b are attached so as to cover the liquid crystal display device 13c from the back. The ball paying unit 15a is pivotally supported by the middle frame 13 on the left side, and the right side of the substrate case unit 15b is pivotally supported by the middle frame 13. The ball paying unit 15a and the substrate case unit 15b are opened in a door-like manner to expose the back of the liquid crystal display device 13c. The liquid crystal display device 13c performs an effect display according to the gaming state or the like on the front surface, and displays a special symbol on the liquid crystal display device 13c as described above. Ball disbursement unit 15a supplies a number of game balls T which corresponds to a winning result to the upper pan 11b ₁ and the lower receiving plate 11b _2. The board case unit 15b accommodates a main board, an effect board, a ball launch control board, and the like for controlling game operations, effect display, ball launch, and the like.

  FIG. 3 is a front view showing an outline of the configuration of the transparent game board 12. In the figure, the same or corresponding parts as those in FIGS. 1 and 2 are denoted by the same reference numerals, and the description thereof is omitted.

  The transparent game board 12 includes a substantially circular game area 12A, and a substantially arc-shaped ball launch area 12B provided along the game area 12A from the lower left part of the game area 12A to the middle part and the upper side. The game area 12A is provided with the above-described winning ports 12b to 12d (not shown in the figure). The ball launch area 12B is an area for guiding a game ball T launched from a launch device 13c described later to the game area 12A. The ball launch area 12B and the game area 12A are partitioned by a return prevention member 12e. The return prevention member 12e is for preventing the game ball T in the game area 12A from returning to the ball launch area 12B, and is made of a plate-like body having elasticity. A first launch ball detection switch 25 is provided on the back side of the board on the ball launch area 12B side, and a second launch ball detection switch 26 is provided on the back side of the board side on the game area 12A with the return prevention member 12e interposed therebetween. It arrange | positions in the vicinity of the member 12e. The first launch ball detection switch 25 and the second launch ball detection switch 26 constitute a launch ball detection means for detecting the game ball T launched by the launch device 13c, and each includes a proximity sensor. The first launch ball detection switch 25 and the second launch ball detection switch 26 have a mutual detection range partially on the path until the game ball T launched from the launch device 13c enters the game area 12A. They are arranged at a distance that overlaps.

  FIG. 4 is a perspective view showing a state in which the middle frame 13 is attached to the wooden frame 14. In the figure, the same or corresponding parts as those in FIG.

At the lower part of the middle frame 13, a launching device 13c and a ball feeding portion 13d are provided. The game ball T in the upper tray 11b ₁ is sent to the launching device 13c by the ball feeding portion 13d. In the launching device 13c, the hammer strikes the game ball T with the excitation of the exciting coil, and the game ball T is launched. The game ball T launched from the launching device 13c passes from the ball launch area 12B of the transparent game board 12 through the return preventing member 12e and enters the game area 12A. The launching device 13c constitutes launching means for launching the game ball T to the game area 12A.

  FIG. 5 is a block diagram illustrating a main configuration of an electronic circuit that controls the gaming operation of the pachinko machine 1 according to the present embodiment. The electronic circuit includes a main control circuit 30 that controls game processing, an effect control circuit 40 that produces a game according to instructions from the main control circuit 30, a payout that controls the payout of prize balls and the like, and the release of the game ball T -It is comprised from the launch control circuit 60 grade | etc.,.

  Electronic components such as a main CPU 31, an initial reset circuit 32, and a serial communication IC 33 are mounted on the main control circuit 30. The main control circuit 30 includes a main ROM (not shown) in which a program for the main CPU 31 to process and control gaming operations of the pachinko machine 1 is stored, and a main ROM (not shown) in which data is temporarily stored during process control. A RAM (Random Access Memory) is also mounted. The initial reset circuit 32 erases the contents of the gaming state stored in the main RAM when the main control circuit 30 is activated, and generates a reset signal for starting the gaming process according to the program stored in the main ROM. . Further, the serial communication IC 33 serially transmits a control signal sent from the main CPU 31 to the control circuits 40 and 60.

  The main control circuit 30 is provided on the inner side of the above-described passage hole, and detects a game switch T which detects the game ball T passing through the passage hole and the start winning prize for detecting the game ball T won in the start winning opening 12b. A ball sensor 21S is connected. In addition, a count switch 22S that detects a game ball T that has won a prize winning opening 12d, a V count switch 22V that detects a game ball T that has passed through the V zone inside the big prize opening 12d, and a game ball that has won a prize in the general winning opening 12c. A general winning ball sensor 23S for detecting T is connected. In addition, the main control circuit 30 includes, as actuators, a start winning port 12b that expands the ball receiving port, a large winning port 12d that opens and closes the door, and a game ball T after the game ball T has won the V zone inside the large winning port 12d. A V zone guiding device 34 for guiding T to other than the V zone is connected.

  When the sensors and switches detect the game ball T, the detection signal is input to the main CPU 31 of the main control circuit 30, and the main CPU 31 controls the actuators 12b, 12d, and 34 according to the input detection signal. Each drive is controlled.

  The main control circuit 30 is connected to a signal synthesis circuit 24 composed of an OR circuit. The signal launching circuit 25 is connected to the first launching ball detection switch 25 and the second launching ball detection switch 26 described above. The signal synthesis circuit 24 is connected to the first launching ball detection switch 25 and the second launching ball detection switch 25. A signal synthesizing means for synthesizing by taking the logical sum of the signals from the shot ball detection switch 26 is constructed. The main CPU 31 constitutes determination means for determining that the game ball T has entered the game area 12A when the signal synthesized by the signal synthesis circuit 24 is on for a predetermined time (8 msec in this embodiment) or longer. Yes. In the present embodiment, the main CPU 31 reads the composite signal output from the signal synthesis circuit 24 by the interruption process performed every 2 msec, and when the composite signal is detected continuously by four readings, It is determined that the game ball T has entered the game area 12A.

The effect control circuit 40 performs image display control for displaying an image on the liquid crystal display device 13c, sound control for emitting a sound effect from the speakers 13b and 13b, and lighting for controlling the light emission of the lighting LED 11a ₁ according to the gaming state Take control. In the effect control circuit 40, a sub CPU 41, a program ROM 42, and a work RAM 43 are mounted. The sub CPU 41 interprets a control command received from the main control circuit 30 and sets parameters of a VDP (video display processor) 44. The program ROM 42, sub CPU41 is, a liquid crystal display device (LCD) 13c, a speaker 13b, 13b, a control program for processing controlling each operation of the electric decoration LEDs 11a ₁ are stored stored. The work RAM 43 serves as a temporary storage unit when the sub CPU 41 performs processing control according to the control program.

  In addition, the effect control circuit 40 is provided with an image data ROM 45, a VDP 44, and an initial reset circuit 46. The image data ROM 45 stores and stores dot data for forming an image to be displayed on the liquid crystal display device 13c. The VDP 44 reads dot data in the image data ROM 45 according to the parameters set by the sub CPU 41, and generates image data to be displayed on the liquid crystal display device 13c. The initial reset circuit 46 generates a reset signal for resetting the effect control circuit 40.

  The main CPU 31 makes a jackpot determination when the game ball T wins the start winning opening 12b and a start win occurs. The production control circuit 40 causes the liquid crystal display device 13c to stop and display the special symbols sequentially in a manner corresponding to the result of the jackpot determination, and when the left state and the right symbol are aligned and stopped in the same design, the reach state is reached. A reach effect is performed on the liquid crystal display device 13c using the special symbol and the effect image.

The speaker driving circuit includes a sound source IC 48 for generating an original sound effect signal, a sound source data ROM 49 connected to the sound source data ROM 49, an amplifier 50 for amplifying the original signal output from the sound source IC 48, and three stages. And a volume changeover switch 51 for designating a one-stage volume output level. The speakers 13b and 13b are controlled by a drive signal from the sub CPU 41. The drive circuit 52 controls the light emission of the illumination LED 11a ₁ according to the gaming state of the pachinko machine 1 according to the drive signal from the sub CPU 41.

  The payout / launch control circuit 60 is connected to a payout device 61 for paying out a prize ball and the like, and a launch device 13c for launching the game ball T to the transparent game board 12. The payout / firing control circuit 60 drives and controls the payout device 61 according to the payout command signal output from the main control circuit 30 according to various winnings, pays out the winning ball, and responds to the operation of the firing handle 13a. Then, the launching device 13c is driven and controlled to launch the game ball T.

  Next, the detection operation of the game ball T entering the game area 12A in the pachinko machine 1 configured as described above will be described.

  FIG. 6 is a diagram showing the relationship between the detection signals at the detection switches 25 and 26 and the synthesized signal at the signal synthesis circuit 24.

When the launch handle 13a is operated, the main CPU 31 controls the payout / launch control circuit 60 to launch the game ball T from the launch device 13c. Emitted from the launching device 13c game ball T is, when entering the game region 12A passes through the respective detection switches 25 and 26, from the first shot ball detection switch 25 time t ₀ shown in FIG. (A) ~ detection signal is turned on at t _4, from the second shot ball detection switch 26 detects signals that are turned on at time t ₃ ~t ₇ shown in (b) is output. These detection signals are input to the signal synthesizing circuit 24, from the signal synthesizing circuit 24 combined signal of about 10msec which is turned on at time t ₀ ~t ₇ shown in (c) it is output.

The main CPU 31 reads the composite signal output from the signal synthesis circuit 24 in an interrupt process performed at a time interval of 2 msec at times t ₁ , t ₂ , t ₅ , and t ₆ , and determines whether or not the composite signal is on. Is determined each time.

  Next, with reference to FIG. 7, the fired ball detection process performed by the main CPU 31 of the main control circuit will be described.

  The shot ball detection process counts the game balls T that have entered the game area 12A based on the result of reading the synthesized signal output from the signal synthesis circuit 24 by the interrupt process performed by the main CPU 31 every 2 msec as described above. It is processing to do.

  In the shot ball detection process, first, the main CPU 31 determines whether or not the determination result in the interrupt process is ON continuously four times, that is, whether an output signal of 8 msec or more from the signal synthesis circuit 24 is detected. (Step (hereinafter referred to as S) 1). If this determination is “YES”, “1” is added to the value of the firing ball counter (S2), and the firing ball detection process is terminated. On the other hand, if the determination in S1 is “NO”, the shot ball detection process is terminated. Based on the value of the launch ball counter added in the launch ball detection process and the number of safe balls and the number of out balls in the game area 12A, the presence / absence of fraud is determined.

In the case illustrated in FIG. 6, in the fired ball detection process, the main CPU 31 continuously turns on the composite signal in four interrupt processes at times t ₁ , t ₂ , t ₅ , and t _6. Therefore, it is determined that the game ball T launched by the launching device 13c has entered the game area 12A, and “1” is added to the value of the launch ball counter in S2. At this time, since the composite signal is on for about 10 msec, the on-state is reliably detected continuously by four interruption processes. Further, when at time t ₅ does not detect the ON of the composite signal, since immediately game balls T is determined not to have entered the game region 12A, due to being detected by the second shot ball detection switch 26 False counting can be suppressed.

  As described above, in the pachinko machine 1 according to the present embodiment, when the combined signal of the detection signal from the first launch ball detection switch 25 and the detection signal from the second launch ball detection switch 26 is ON for 8 msec or more. It is determined that the game ball T has entered the game area 12A. For this reason, when the passage of the game ball T is not detected continuously by the first shot ball detection switch 25 and the second shot ball detection switch 26, the synthesized signal is not detected for more than 8 msec. It is not determined that the vehicle has entered the area 12A.

  That is, when the game ball T is detected only by the first shot ball detection switch 25, it is not determined that the game ball T has entered the game area 12A. Similarly, even if there is no detection by the first launch ball detection switch 25 and detection by the second launch ball detection switch 26, it is not determined that the game ball T has entered the game area 12A. Further, even if noise of 8 msec or less enters, it is not determined that the game ball T has entered the game area 12A. In addition, after the passage of the game ball T is detected by the first launch ball detection switch 25, when the passage of the game ball T is detected by the second launch ball detection switch 26 after a while, the first The game ball T detected by the launch ball detection switch 25 returns to the ball launch region 12B without entering the game region 12A, and a game ball T different from the one detected by the first launch ball detection switch 25 is detected. It is assumed that it has been detected by the second shot ball detection switch 26.

  Therefore, the passage of the game ball T is detected by the first launch ball detection switch 25, and the passage of the game ball T is detected by the second launch ball detection switch 26 within a predetermined time, so that the game area T is within the game area 12A. Compared to the conventional pachinko machine in which it is determined that the game ball T has entered, it is possible to suppress an erroneous count caused by the detection of another game ball T in the game area 12A by the second shot ball detection switch 26. it can. As a result, the reliability of detection and counting of the game ball T is increased.

  In addition, compared to a transmission type sensor that detects the passage of a game ball by blocking the light emitted from the light emitting element and received by the light receiving element, this implementation detects the passage of the game ball by a change in the magnetic field. Since the detection range of the proximity sensor in the embodiment is wide, in this embodiment, the detection time of the game ball T by the first launch ball detection switch 25 and the second launch ball detection switch 26 can be extended. When a transmission type sensor is used as both the detection switches 25 and 26, the detection time of the game ball T at each detection switch 25 and 26 is short, and there is no time for the detection signals to overlap. A plurality of flip-flop circuits are required to combine the detection signals in FIG. However, when proximity sensors are used as the detection switches 25 and 26, as shown in FIG. 6, the detection signals at the detection switches 25 and 26 can be overlapped without using a special circuit. Therefore, a composite signal can be generated using an OR circuit that is cheaper than a flip-flop circuit. Therefore, according to the configuration of the present embodiment using the proximity sensor, it is possible to prevent erroneous counting while suppressing the manufacturing cost of the pachinko machine 1. Further, when the proximity sensor is used as in the present embodiment, the signal synthesis circuit 24 is configured by an OR circuit including fewer circuit elements than the flip-flop circuit. Compared to the case of using a type sensor, it is less affected by external noise, and the occurrence of erroneous counting due to noise can be suppressed.

  In addition, since the first launch ball detection switch 25 is provided in the ball launch region 12B and the second launch ball detection switch 26 is provided in the game region 12A, the game ball T in the game region 12A is placed in the ball launch region. Returning to 12B is prevented by the return preventing member 12e. Therefore, the game ball T that has once entered the game area 12A returns to the ball launch area 12B, and the detection signals from the second launch ball detection switch 26 and the first ball launch detection switch 25 are combined. It is possible to prevent erroneous counting from occurring.

  Further, since both detection switches 25 and 26 are provided in the vicinity of the return preventing member 12e, the distance between both detection switches 25 and 26 is shortened and the composite signal is also shortened, so that the game ball T is placed in the game area 12A. The predetermined time until it is determined that the vehicle has entered can be shortened. For this reason, it becomes difficult to receive the influence of an external noise, and it can make it difficult to produce the miscount by noise.

  In the above embodiment, the case where the main CPU 31 performs an interrupt process every 2 msec and reads the synthesized signal generated by the signal synthesis circuit 24 every 2 msec has been described. However, the time interval for reading the composite signal is not necessarily every 2 msec, and may be every 1 msec, for example. In this way, by shortening the reading time interval, the waveform of the composite signal can be read accurately, so that the occurrence of erroneous counting can be further suppressed. Further, the output time of the composite signal that is a reference for determining that the game ball T launched from the launching device 13c has entered the game area 12A does not necessarily have to be 8 msec or more, and the arrangement interval between the two detection switches 25 and 26 Alternatively, the speed may be changed as appropriate according to the speed of the game ball T passing through the detection ranges of the detection switches 25 and 26. In the above-described embodiment, the case where both detection switches 25 and 26 are arranged in the vicinity of the return preventing member 12e has been described. However, both detection switches 25 and 26 are not necessarily arranged near the return preventing member 12e, and may be arranged near the launching device 13c, for example.

  In the above embodiment, the case where the gaming machine according to the present invention is applied to a pachinko machine that adjusts the payout rate with a nail has been described, but a pachikon machine that adjusts the payout rate using a computer instead of a nail It is possible to apply the present invention to other ball game machines. Even when the present invention is applied to such a gaming machine, the same effects as the above-described embodiment can be obtained.

It is a perspective view which shows the external appearance of the pachinko machine by one Embodiment of this invention. 1 is an exploded perspective view of a pachinko machine according to an embodiment of the present invention. It is a front view which shows the outline of a structure of the transparent game board of the pachinko machine by one Embodiment of this invention. It is a perspective view which shows the inner frame of the pachinko machine by one Embodiment of this invention. It is a block diagram which shows the main structures of the electronic circuit which processes and controls the game operation | movement of the pachinko machine by one Embodiment of this invention. It is a timing chart which shows the relationship between the detection signal in the detection switch in the pachinko machine by one Embodiment of this invention, and the synthesized signal in a signal synthesis circuit. It is a flowchart of the shot ball detection process by main CPU in the pachinko machine by one Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Pachinko machine 12 ... Transparent game board 13 ... Middle frame 13c ... Ball launcher 24 ... Signal synthesis circuit 25 ... 1st launch ball detection switch 26 ... 2nd launch ball detection switch 30 ... Main control circuit 31 ... Main CPU

Claims (4)

In a gaming machine comprising a game area formed facing the front of the device, a launching means for launching a game ball to the game area, and a launching ball detecting means for detecting a game ball launched by the launching means,
The fired ball detecting means includes a first fired ball detecting means and a second fired ball arranged at a predetermined interval on a path until the game balls launched from the launch means enter the game area. Consisting of detection means,
When the game ball launched from the launch means passes through the first launch ball detection means and the second launch ball detection means and enters the game area, the first game ball detection means The time for detecting the game ball and outputting the detection signal that is turned on overlaps the time for the second game ball detection means to detect the game ball and output the detection signal that is turned on,
A game synthesizer that synthesizes signals from the first sphere detection means and the second sphere detection means, and a game ball when a signal synthesized by the signal synthesizer is detected for a predetermined time or more. And a judging means for judging that the player has entered the gaming area.   A ball launch area for guiding a game ball launched from the launch means to the game area; and the game area
A return preventing member for preventing return of the game ball from the ball launching area to the ball launching area,
  2. The gaming machine according to claim 1, wherein the first launching ball detection means is provided in the ball launching area, and the second launching ball detection means is provided in the gaming area.   The gaming machine according to claim 2, wherein the first shot ball detecting means and the second shot ball detecting means are provided in the vicinity of the return prevention member.   The signal synthesis means comprises a signal synthesis circuit composed of an OR circuit,
  The signal synthesis circuit includes:
Connected to the first projecting ball detecting means and the second projecting ball detecting means;
A storage area corresponding to each signal from the first launching ball detection means and the second launching ball detection means;
When the first shot ball detection means and the second shot ball detection means detect the passage of the game ball and output a detection signal, the bit of the storage area corresponding to each signal is turned on, and each logical sum The gaming machine according to claim 1, wherein the game machines are combined.

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