JP2004358216A - Motor stop control device and game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To manufacture a reel unit with a few processes, suppress the cost of a stepping motor low and stop reels at highly precise positions without spoiling the smoothness of braking of the stepping motor. <P>SOLUTION: The subject motor stop control device for a reel type game machine 1 is provided with the stepping motor 70 having two pairs of excitation phases as a drive source of the reels 3 displaying a plurality of patterns and stops the stepping motor 70 according to the operation command from the outside. This motor stop control device is further provided with a speed reduction transmission mechanism 700 transmitting the rotation of the stepping motor 70 at a predetermined reduction ratio to a rotating shaft rotating the reels 3; and a CPU (central processing unit) main 40, when a stop command of the stepping motor 70 is issued by an operation command from the outside, controlling to reduce the rotation speed of the stepping motor 70 and controlling to stop the stepping motor 70 by two-phase excitation. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention includes a motor having a pair of excitation phases as a drive source of a reel displaying a plurality of symbols, a motor having a pair of excitation phases, and a motor stop control device of a spinning-type gaming machine for stopping the motor in response to an operation instruction from the outside, The present invention relates to a gaming machine including a driving unit for driving a predetermined device and a power supply unit for supplying a predetermined power to a control circuit for controlling the driving unit.

2. Description of the Related Art Conventionally, in a symbol changing device for a spinning-type gaming machine (for example, a pachislot gaming machine), a reel is directly connected to a rotating shaft of a stepping motor (a direct-acting system) (for example, see Patent Document 1). According to this direct-acting system, the rotation torque of the stepping motor is directly transmitted to the rotation shaft of the reel, so that the structure around the stepping motor is simplified.
JP-A-10-71240 (page 4-5, FIG. 1)

  However, in the above-mentioned linear motion system, since no mechanical decelerating means is incorporated, the stepping motor needs to generate a rotational torque according to the inertia of the reel, so that an expensive stepping motor capable of generating a high torque is used. (For example, a hybrid type). Therefore, there has been a problem that the manufacturing cost of the reel unit including the stepping motor cannot be significantly reduced.

  In general, the reel control in the linear motion system is performed by performing stop control of a stepping motor by all-phase excitation, and using a detent torque of the stepping motor. However, the detent torque varies from reel to reel, and the inertia also varies from reel to reel. Therefore, the stop position of the symbol was not stable, and the symbol displayed on the reel surface could not be accurately stopped.

  Further, in order to prevent the variation in the stop position of the symbol from occurring, a sorting operation for reducing the variation in the detent torque of the stepping motor and the balance between the detent torque and the inertia (moment of inertia) of the reel. Must be adjusted by the operator (balance adjustment). In this case, there is a problem that the number of steps for assembling the reel unit increases.

  In addition, since a stepping motor capable of generating a high torque requires a 24 V DC power supply, a power supply unit provided in the game machine generates 5 V DC serving as a power supply for sensors and the like and 5 V DC serving as a power supply for a control circuit. , And three kinds of power of 24 VDC serving as the power of the stepping motor need to be supplied to the control circuit. Therefore, there is a problem that the power supply unit becomes expensive. Note that DC5V, which is a power supply of the control circuit, needs to be stably supplied to the control circuit, and thus needs to be generated from a DC12V power supply.

  In view of the above, the present invention has been made in view of the above-described circumstances, and it is necessary to keep the cost of the stepping motor low, manufacture the reel unit in a small number of steps, and achieve high precision without impairing the smoothness of braking of the stepping motor. It is an object to provide a motor stop control device capable of stopping a reel at a proper position and a gaming machine capable of reducing the number of types of power supplied to a control circuit from a power supply unit.

  In order to solve the above-described problems, the invention according to the present application includes a motor having two pairs of excitation phases as a drive source of a reel displaying a plurality of symbols, and a motor for stopping the motor in response to an external operation instruction. A motor stop control device for a barrel-type game machine, wherein a speed reduction transmission mechanism (for example, a speed reduction transmission mechanism 700) for transmitting rotation of a motor to a rotating shaft for rotating a reel at a predetermined reduction ratio, And motor stop control means (for example, the main CPU 41) for executing a control to reduce the rotation speed of the motor when it is generated by an operation instruction from the CPU and then executing a stop control by two-phase excitation for the motor. Features.

  According to the present invention, since the speed reduction transmission mechanism transmits the rotation of the motor to the rotation shaft that rotates the reel with a predetermined reduction ratio, the designer can use a low-cost motor (for example, PM Type) can be adopted. Further, after the motor stop control means executes the control to reduce the rotation speed of the motor, and then executes the stop control by two-phase excitation for the motor, the motor stop control means stops the reel at a highly accurate position. Can be done.

  Further, since the motor stop control means executes the control for reducing the rotation speed of the motor, the motor stop control means does not impair the smoothness of the braking of the motor than sharply reducing the rotation speed of the motor. The reel can be stopped at a highly accurate position. As a result, since it does not depend on the braking by the detent torque when the reel is stopped, the above-described balance adjustment at the time of manufacturing becomes unnecessary, and the operator can manufacture the reel unit in a small number of steps.

  Further, the present invention includes a motor having two pairs of excitation phases as a drive source of a reel displaying a plurality of symbols, and a motor stop control of a spinning-type gaming machine for stopping the motor in response to an external operation instruction. A deceleration transmission mechanism for transmitting rotation of a motor to a rotating shaft for rotating a reel at a predetermined reduction ratio; and a two-phase excitation for the motor when a motor stop command is generated by an external operation instruction. And a vibration damping member (for example, a vibration damping member 75) for attenuating reel vibration generated when rotation of the reel is stopped by the stop control of the motor stop control means. It is characterized by the following.

  In the above invention, when the motor stop command is generated by an external operation instruction, the motor stop control means executes stop control by two-phase excitation for the motor after executing control to reduce the rotation speed of the motor. May be performed.

  According to the present invention, since the speed reduction transmission mechanism transmits the rotation of the motor to the rotation shaft that rotates the reel at a predetermined reduction ratio, the designer can employ a low-cost motor with small rotation torque. Can be. Further, since the motor stop control means executes stop control of the motor by two-phase excitation, the motor stop control means can stop the reel at a highly accurate position.

  Furthermore, since the damping member performs a braking function when the reel rotates and attenuates the reel vibration generated when the motor is braked, the damping member has high precision without impairing the smoothness of the motor braking. The reel can be stopped at an appropriate position. As a result, the above-described balance adjustment at the time of manufacturing becomes unnecessary, and the operator can manufacture the reel unit in a small number of steps.

  The reduction ratio is preferably obtained from the ratio of the number of steps of one rotation of the motor and the least common multiple calculated from the number of symbols displayed on the reel and the number of steps of one rotation of the stepping motor 70. In this case, the reduction ratio is obtained from the ratio of the number of steps of one rotation of the motor and the least common multiple calculated from the number of symbols displayed on the reel and the number of steps of one rotation of the stepping motor 70. The symbol can be stopped at an appropriate position by the speed reduction ratio.

  The vibration damping member may be an oil damper, a high friction member (for example, rubber or felt) or a wave washer. Further, the speed reduction transmission mechanism may be formed by a plurality of rubber roller rows formed of a soft member containing rubber or polyamide. Further, the deceleration transmission mechanism may have a configuration in which a stretchable belt formed of a soft member containing rubber or urethane and input and output pulleys are combined. Further, the reduction transmission mechanism may include an output gear and an input gear formed of spur gears, and one of the output gear and the input gear may be a scissor gear. Furthermore, the material of the spur gear may be a soft member such as polyamide.

  Further, the present invention provides a driving unit (stepping motor 70) for driving a predetermined device (reel 3L), a control unit (main control circuit 40) for controlling the driving unit, and a power supply unit for supplying power to the control unit. (Power supply unit 300), the power supply means supplies the first power supply (12V) and the second power supply (5V) to the control means, and the control means It is operated by the generated third power supply (5 V), and the drive means is operated by the first power supply and the second power supply supplied from the power supply means via the control means.

  According to such an invention, the driving means is operated by the first power supply (12V) and the second power supply (5V), so that the type of power supplied from the power supply means to the control means can be reduced. Can also be reduced. That is, in the conventional gaming machine, there are three types of power supplied from the power supply unit to the control unit (DC5V and DC24V for operating the drive unit, and DC5V for operating the control unit). In contrast, in the gaming machine of the present invention, the type of power supplied from the power supply means to the control means is two (5 V DC and 12 V DC). As a result, a power supply means (power supply unit 300), which is cheaper than in the past, can be employed in the gaming machine.

  Since the third power supply (DC5V) for operating the control means needs to be stably supplied to the control means, the second power supply (DC5V) supplied from the power supply means is controlled by the control means. Cannot be used as a third power supply (5 V DC) for operating the. Therefore, the control means generates a third power supply (5 VDC) from the first power supply (12 VDC) supplied from the power supply means.

  The present invention also provides a gaming machine comprising: a driving unit for driving a predetermined device; a control unit for controlling the driving unit; and a power supply unit for supplying power to the control unit. Is supplied to the control unit, the control unit is operated by the third power supply (5 V DC) generated from the first power supply, and the driving unit is supplied from the power supply unit via the control unit. It operates by a first power supply and a third power supply generated by the control means.

  According to such an invention, the control means generates the third power supply (5 VDC) for operating the control means from the first power supply (12 VDC) supplied by the power supply means, and the driving means comprises: By operating with the third power supply (DC 5 V) generated by the control means, the type of power supplied from the power supply means to the control means can be reduced as compared with the related art. That is, in the conventional gaming machine, there are three types of power supplied from the power supply means to the control means (DC5V and DC12V for operating the drive means, and DC5V for generating DC5V for operating the control means). In contrast, in the gaming machine of the present invention, the type of power supplied from the power supply means to the control means is one (DC12V). As a result, a power supply means (power supply unit 300), which is cheaper than in the past, can be employed in the gaming machine.

  As described above, according to the present invention, the cost of the stepping motor is kept low, the reel unit is manufactured in a small number of steps, and the reel is stopped at a highly accurate position without impairing the smoothness of braking of the stepping motor. It is possible to provide a motor stop control device capable of causing the game to be stopped and a gaming machine capable of reducing the number of types of power supplied from the power supply unit to the control circuit.

(Basic configuration of motor stop control device)
A motor stop control device according to the present embodiment will be described with reference to the drawings. FIG. 1 is an external view of a spinning-type gaming machine 1 according to the present embodiment.

  As shown in FIG. 1, three panel display windows 5L, 5C, and 5R are formed on the front surface of a cabinet that forms the whole of the spinning-type gaming machine 1. The reels 3L, 3C, 3R forming the reel unit are visually recognized through these panel display windows 5L, 5C, 5R. In the panel display windows 5L, 5C, and 5R, three pay lines 6 in the horizontal direction and two pay lines 6 in the diagonal direction are described. The number of activated pay lines is determined according to the number of coins inserted from the insertion slot 7 or the type of the BET button 2 to be operated (1 BET button, 2 BET button, or MAX BET button). .

  When the player inserts a coin into the insertion slot 7 and operates the start lever 9, each of the reels 3L, 3C, 3R starts rotating. Then, when the player presses the stop buttons 4L, 4C, 4R provided corresponding to the respective reels 3L, 3C, 3R, the rotation of the respective reels 3L, 3C, 3R is stopped. The winning mode is determined by the combination of the symbols of the reels 3L, 3C, 3R visually recognized through the panel display windows 5L, 5C, 5R at the time of the rotation stop. At the time of winning, the number of coins corresponding to the winning mode is determined by the tray. 8 paid out.

  In addition, a liquid crystal display device 15 that displays effect contents (for example, a predetermined character image or the like) according to a game state is provided on the front of the cabinet described above. Further, below the liquid crystal display device 15, there is provided a waist panel 100 on which characters related to the spinning-type gaming machine 1, model names of the spinning-type gaming machine 1, and the like are drawn. In addition, the waist panel 100 is configured such that a character or a model name drawn on the waist panel is emphasized by emitting a fluorescent tube from the back side of the waist panel 100.

  FIG. 2 is a perspective view showing a configuration of a reel unit provided inside each of the panel display windows 5L, 5C, 5R. As shown in FIG. 2, the reel unit includes three mounting plates 80L, 80C, 80R, three reels 3L, 3C, 3R arranged inside the mounting plates 80L, 80C, 80R, and a reel. It is provided with three PM type stepping motors 70L, 70C, 70R that individually drive the 3L, 3C, 3R to rotate.

  In the following, for convenience of description, the three reels 3L, 3C, 3R, the three mounting plates 80L, 80C, 80R, and the three stepping motors 70L, 70C, 70R are on the right side. The description will be limited to the reel 3L (reel 3), the mounting plate 80L (the mounting plate 80), and the stepping motor 70L (the stepping motor 70), but unless otherwise specified, the other reels 3C, 3R, the mounting plates 80C, 80R and each of the stepping motors 70C and 70R have the same configuration.

  FIG. 3 is a diagram illustrating a right side surface of the reel 3. As shown in FIG. 3, a position detection sensor 10 as a reel position detection circuit for detecting the rotation position of the reel 3 is provided within a rotation radius r1 of the reel 3 on a mounting plate 80 (not shown). ing. The center of the reel 3 is rotatably supported by a reel post 76 extending vertically from the surface of the mounting plate 80.

  As shown in FIG. 3, the reel 3 is composed of six arms 31 extending radially from the center thereof and a cylindrical member 32 integrally formed so as to extend the tip of each arm 31 in the extending direction. It is configured. One of the arms 31 is provided with a detection piece 11 as a reference position at a position that can be detected by the position detection sensor 10.

The detection piece 11 is disposed so as to pass through the position detection sensor 10 every time the reel 3 makes one rotation. The position detection sensor 10 is configured to output a detection signal each time the detection piece 11 passes and detects the detection piece 11.

  In the present embodiment, a total of 21 symbol marks 33 are printed at a constant pitch on the side periphery of the tubular member 32. A symbol sheet (not shown) is attached. The symbol sheet is attached to the outer peripheral surface of the tubular member 32 by a method such as bonding so that the center of the displayed symbol is positioned on the symbol mark 33.

  As shown in FIG. 3, a reduction transmission mechanism 700 is provided between the drive shaft of the stepping motor 70 and the rotation shaft of the reel 3. The deceleration transmission mechanism 700 transmits the rotation of the stepping motor 70 to the rotation shaft that rotates the reel 3 at a predetermined reduction ratio.

  As shown in FIG. 3, the speed reduction transmission mechanism 700 includes an output gear 71 provided on the drive side of the stepping motor 70, And an input side gear 72 disposed on the reel 3 such that

  As the output gear 71 and the input gear 72, for example, spur gears are used. The number of teeth of the input gear 72 according to the present embodiment is set to be seven times that of the output gear 71. Therefore, the reduction transmission mechanism 700 is configured to reduce the rotation speed of the stepping motor 70 to 1/7 and transmit the rotation to the reel 3.

  The gear ratio (reduction ratio) between the output side gear 71 and the input side gear 72 is determined by the number of steps of one rotation of the stepping motor 70, the number of symbols displayed on the reel 3, and the number of steps of one rotation of the stepping motor 70. It is determined from the ratio with the least common multiple calculated from.

  Specifically, for example, when the number of steps in one rotation of the stepping motor 70 is “48 steps” and the number of symbols displayed on the reel 3 is “21”, “48” and “21” Is "336". Then, the ratio of “48”, which is the number of steps for one rotation of the stepping motor 70, to the least common multiple “336” is “48: 336 = 1: 7”. Therefore, the gear ratio between the output side gear 71 and the input side gear 72 can be obtained as “1: 7 × n (n is an integer)”.

  When the rotation speed of the reel 3 is 80 rpm and the gear ratio is 1: 7 (when the above-mentioned n is 1), the rotation speed of the stepping motor 70 is 1.33 rpm. Therefore, when the number of steps per rotation of the stepping motor 70 is 48, the driving frequency of the stepping motor 70 is 1.33 rps × the above “336” = 448 pps.

  This driving frequency is in the range of an appropriate driving frequency (about 300 to 500 pps) of the two-phase excitation stepping motor 70. When n is 2 or more, the drive frequency of the stepping motor 70 becomes 896 pps or more by the same calculation, which is outside the range of the appropriate drive frequency.

  Therefore, the combination where n is 1 (rotational speed 80 rpm, gear ratio 1: 7, number of steps 48) is the optimum condition. That is, an appropriate reduction ratio is uniquely determined by the combination of “the least common multiple of the number of steps and the number of symbols in one rotation of the stepping motor 70” and “the driving frequency of the stepping motor 70”.

  FIG. 4 is a perspective view showing a peripheral portion of a rotation shaft of the reel 3. FIG. 5A is a diagram illustrating a structure of a shaft support 720 that rotatably supports the reel 3. FIG. 5B is a cross-sectional view illustrating a structure in which the reel 3 is pivotally supported by the pivot support 720 attached to the mounting plate 80. FIG. 6 is an overall sectional view showing a structure in which the reel 3 is pivotally supported by the pivot support 720.

  As shown in FIG. 5A, the shaft support 720 includes a stopper 73, collars 74a and 74b, a damping member 75, and a reel post 76. The reel post 76 includes a rotation shaft support portion 76a that rotatably supports the input side gear 72 by inserting the input side gear 72, a position fixing portion 76b for inserting a member for fixing the position of the reel 3, and a reel post 76. A projecting portion 76c protruding from the bottom surface of the mounting plate 80 toward the mounting plate 80 and inserting the reel post 76 into the hole 81 of the mounting plate 80; and a screw hole 76d for fixing the reel post 76 to the mounting plate 80 with screws. A stop hole 76e is provided for stopping the input gear 72 from being pulled out by the stopper member 73 (for example, a screw) via the collars 74a and 74b and the vibration damping member 75.

  The damping member 75 performs a braking function when the reel 3 rotates, and attenuates the vibration of the reel 3 that occurs when the rotation of the reel 3 stops, under the stop control of the main CPU 41. The vibration damping member 75 is, for example, a spring. The spring 75 is used as the vibration damping member 75 according to the present embodiment. As shown in FIG. 5B, after the input side gear 72 is inserted into the rotary shaft support 76a, the spring 75 is inserted into the position fixing portion 76b while being sandwiched between the collars 74a, 74b.

  As shown in FIG. 5B, the stopper member 73 stops the collars 74a, 74b and the spring 75 inserted in the position fixing portion 76b by being inserted into the stopper hole 76e. The spring 75 retained by the stopper member 73 presses the input side gear 72 toward the mounting plate 80 via the collar 74b due to the repulsive force of the spring 75. Due to the frictional force generated at this time, the vibration damping member 75 can attenuate the vibration of the reel 3 generated when the rotation of the reel 3 is stopped.

  As shown in FIG. 6, the input side gear includes projections 72 a and 72 b which are vertically projected from both surfaces having a plate-shaped gear and have cavities along the vertical axis into which the rotation shaft support 76 a can be inserted. It is provided integrally. The input gear 72 is inserted into the rotary shaft support 76a with one of the protrusions 72b facing the mounting plate 80. The other protruding portion 72a is press-fitted into the hole 34 at the center of the reel 3. Accordingly, the rotation of the output gear 72 causes the reel 3 and the input gear to rotate integrally about the rotation shaft support 76a.

  FIG. 7 is a block diagram illustrating an electrical configuration of the spinning-type gaming machine 1 including the motor stop control device. This motor stop control device includes a stepping motor 70 having two pairs of excitation phases as a drive source of the reel 3 displaying a plurality of symbols, and stops the stepping motor 70 in response to an operation instruction from the outside. . The configuration corresponding to this motor stop control device corresponds to the configuration shown in FIG.

  As shown in FIG. 7, the main control circuit 40 includes a main CPU 41 (motor stop control means), which is a main body of control and calculation, a program ROM 43 for storing programs and fixed data, and a control for reading and writing data. A RAM 42 and a random number generator (not shown) for generating a predetermined random number value are provided.

  The main CPU 41 is credited via the I / O 60 by the start switch 9S for detecting the operation of the start lever 9, the reel stop signal circuit 12 for detecting the operations of the stop buttons 4L, 4C, 4R, and the push button operation. Payout completion that generates a payout completion signal indicating that payout of medals has been completed, based on the BET switches 2a to 2c for betting the medals being paid and the detection result of the medals to be paid out (the detection result by the medal detection unit 14S). Each input unit such as the signal generation circuit 16 is connected. Further, the main CPU 41 is connected to output units such as a motor drive circuit 20 for driving a stepping motor 70, a hopper drive circuit 13 for driving a hopper 14 for paying out medals, and a sub control circuit 50. .

  The main CPU 41 reads and writes data from and to the control RAM 42 according to a program stored in the program ROM 43, controls a series of operations of each input / output unit, and performs a lottery process using a random number value generated by a random number generator. Execute. The sub control circuit 50 executes the effect contents according to the game state based on the command from the main CPU 41. For example, the sub-control circuit 50 displays a character image or the like according to the game state on the liquid crystal display device 15.

  The main CPU 41 internally executes a lottery process after detecting an operation by the start lever 9. Here, the main CPU 41 executes a lottery process by sampling a predetermined random number value generated from the random number generator and determining whether or not the sampled random number value is within a predetermined range. Since the lottery process is known, a detailed description is omitted.

  After that, when a stop operation is performed by the stop buttons 4L, 4C, 4R, if the lottery is internally won, the main CPU 41 draws the winning predetermined symbol into a winning line and executes the stop control. . On the other hand, if the lottery has not been internally won, the main CPU 41 performs a sliding process (this process is performed by a predetermined number of symbols) so that the timing of the stop operation by the stop buttons 4L, 4C, 4R does not become a predetermined winning combination. After that, stop control is executed.

  Here, a process including a process of drawing a predetermined symbol won by the main CPU 41 into a winning line and a process including a process of sliding a predetermined number of symbols so that the main CPU 41 does not become a predetermined winning combination are hereinafter referred to as “symbol processing”. .

  The motor drive circuit 20 drives or stops the stepping motor 70 based on a command from the main CPU 41. In this embodiment, the motor drive circuit 20 controls the current flowing through the drive coil by the chopper operation. This chopper operation means that the current is repeatedly turned ON / OFF at a high frequency. Thus, the motor drive circuit 20 can efficiently drive the rotor of the stepping motor 70 to rotate.

  Here, the stepping motor 70 is a four-phase motor and has A-phase to D-phase drive coils. In the present embodiment, the phases are in the order of A phase, B phase, C phase, and D phase in the counterclockwise direction. Further, the A-phase and the C-phase or the B-phase and the D-phase are paired, and one of the paired two phases has an opposite current to the current flowing in the other phase. Current flows in phase.

  The motor drive circuit 20 sequentially excites the drive coils of each phase based on a command from the main CPU 41, so that the rotor inside the stepping motor 70 is rotationally driven. When the stepping motor 70 is driven, the main CPU 41 supplies a pulse with a phase shift to each bipolar transistor (or unipolar transistor) in each phase of the motor drive circuit 20.

  As a driving method of the stepping motor, there are one-phase excitation, two-phase excitation, and “1-2-phase excitation”. In the present embodiment, a two-phase excitation method that simultaneously excites two-phase drive coils is used. Used. In the present embodiment, the two-phase excitations (for example, the C-phase and the D-phase) are applied to the two excitation phases so that the directions of the magnetic fields generated in the two excitation phases are the same. It means flowing. In the stop control by the two-phase excitation (for example, the C-phase and the D-phase), a stronger braking force can be obtained as compared with the all-phase excitation, the one-phase excitation, and the three-phase excitation.

  Further, as the stepping motor 70 according to the present embodiment, for example, a PM-type stepping motor having 48 steps per rotation, that is, a PM having a rotation angle of 7.5 degrees per step is used.

  FIG. 8 is a diagram showing the details of the reel stop processing performed until the reel 3 is finally stopped. As shown in FIG. 8, the reel stop process includes a “stop process” indicating a process from when any one of the stop buttons 4 is pressed to a time when the holding process is started, and after the “stop process” is completed. "Holding processing" indicating processing until the reel 3 is completely stopped is included.

  The “stop process” illustrated in FIG. 8 includes a process of drawing a predetermined symbol won by the main CPU 41 to a winning line, or a process of sliding a predetermined number of symbols so that the main CPU 41 does not become a predetermined winning combination. The “symbol processing” executed from the time the stop button 4 is pressed until the reel 3 is stopped at the target stop position, and the control processing for reducing the rotation speed of the stepping motor 70 at the time of stopping are referred to as “symbol processing”. Is completed until the reel 3 is stopped at the target stop position. Here, in the “deceleration process” according to the present embodiment, two-phase excitation (for example, B-phase and C-phase) is employed.

  Further, the “holding process” includes “excitation process” indicating a process (stop control) for exciting each phase to stop the stepping motor 70, and a process for stopping the rotation of the stepping motor 70 using the damping member 75. The term "damping action by the damping member 75" indicating that the generated vibration of the reel 3 is attenuated is included.

  As shown in FIG. 8, the reel stop processing including the “stop processing” and “holding processing” includes “general reel stop processing”, “first reel stop processing”, and “second reel stop processing”. Stop processing "and" third reel stop processing ". The reel stop processing will be described below in order.

(1) General reel stop processing FIG. 9 is a diagram showing the contents of “general reel stop processing”. FIG. 9A is a diagram illustrating pulses of each phase transmitted from the main CPU 41 to the motor drive circuit 20 in the “stop processing” and the “holding processing”. FIG. 9B is a diagram illustrating a rotation speed of the reel 3 with respect to a time when the motor driving circuit 20 drives the stepping motor 70 based on the pulse of each phase received from the main CPU 41. It is assumed that the time shown in FIG. 9B according to the present embodiment corresponds to the time shown in FIG. 9A. This “general reel stop processing” means a reel stop processing that has been conventionally performed.

  Here, the space between the two dotted lines shown in FIG. 9B indicates the range of the variation of the actual stop position. The actual stop position is determined by the balance between the detent torque of the stepping motor 70 and the inertia of the reel 3. Therefore, the actual stop position varies depending on the balance of the balance. Since this balance adjustment is performed artificially, the manufacturing cost is high. In the following “first reel stop processing” to “third reel stop processing”, “deceleration processing”, “excitation processing”, or “damping action by the damping member 75” is adopted. The variation of the “actual stop position” is almost zero.

  As shown in FIGS. 9A and 9B, the "general reel stop processing" executes the "symbol processing" after the stop button 4 is pressed, and performs "excitation" by all-phase excitation. This means that the "process" is executed and the reel 3 is stopped. In this “general reel stop processing”, as shown in FIG. 8, the “deceleration processing” and the “damping action by the damping member 75” performed in the first to third reel stop processings are not performed. And The “general reel stop processing” does not include the speed reduction transmission mechanism 700 but has a drive mechanism for the stepping motor 70 by a direct-acting system.

  As shown in FIG. 9A, the interrupt processing in the “general reel stop processing” is performed at a time interval of 1.8773 ms, for example. Here, the time interval of this interrupt processing is determined by the relationship of the driving frequency of the stepping motor 70. The driving frequency S of the stepping motor 70 can be expressed by a relational expression of S = (the number of rotations of the reel 3 per second) × (the number of steps per rotation of the stepping motor 70).

  According to the present embodiment, (the number of rotations of the reel 3 per second) is, for example, 80 rpm / 60 seconds, (the number of steps per rotation of the stepping motor 70) is, for example, 200, and the excitation method is 1 When the two-phase excitation method is employed, the number of steps per rotation is 400, and the driving frequency S of the stepping motor 70 is 533 pps according to the above relational expression.

  Therefore, since the oscillation period T is 1 / S, it is 1.875 ms. Since the oscillation cycle T (1.875 ms) is a value (oscillation cycle T> clock cycle) close to the minimum clock cycle (for example, 1.2 ms) used in the main CPU 41, the interrupt processing is performed for 1.875 ms. Done at time intervals.

  Further, as shown in FIG. 9, the maximum number of interrupts from when the stop button 4 is pressed to when the stop processing is completed can be obtained by the following relational expression. However, since the symbol attached to the reel 3 is 21 frames and the number of steps in one rotation of the stepping motor 70 is 400, the number of steps per frame is 400 steps / 21 frames = 19.05. It is not an integer. Therefore, an even number of steps cannot be assigned to 21 frames, and 400 steps are set to {19 steps × 20 frames + 20 steps × 1 frame}. Further, from the relational expression of the vibration cycle T, one step corresponds to one interrupt number.

  Therefore, the general maximum number of interrupts is 1 (the number of interrupts required to detect the stop button) +18 (maximum waiting time = 19 steps-1) +4 (maximum four-frame slips) .times.19 (steps) +5 (reel) The number of interrupts used for adjusting the position of No. 3) = 100 interrupts.

  Therefore, the maximum time from when the stop button 4 is pressed to when the stop processing is completed is 100 (interruption) × 1.875 ms (interruption time interval) = about 187.73 ms. Thus, the “stop processing” performed by the main CPU 41 is performed within about 190 ms as shown in FIG. After the “stop processing” is completed, as shown in FIG. 9, the main CPU 41 executes stop control by all-phase excitation (all-phase ON) for about 375 ms (200 (interruption) × 1.875 ms).

  It should be noted that the braking time Δt of the stepping motor 70 requires about 100 ms in actual measurement as shown in FIG. Here, since the all-phase excitation is equivalent to the non-excitation state, only the detent torque Td of the stepping motor 70 acts on the load torque in the main braking process.

  Therefore, assuming that the braking time Δt indicates the time from the completion of the stop processing to the stop to the expected position and the moment of inertia J indicates the momentum generated on the rotation axis of the reel 3, the detent torque Td becomes J · ω / Δt. , And the braking time Δt is J · ω / Td.

  As shown in FIG. 8, the conventional "general reel stop processing" is such that the rotation shaft of the stepping motor 70 is directly fitted to the center of the reel 3, and the "deceleration processing" and "control Since the "vibration damping action by the vibration member 75" is not performed, the braking time Δt is set to the "first reel stop processing", the "second reel stop processing", and the "third reel stop processing" according to the present invention. Is longer than the braking time. The “first reel stop processing”, the “second reel stop processing”, and the “third reel stop processing” will be described below in order.

(2) First Reel Stop Process FIG. 10 is a diagram showing the contents of the “first reel stop process”. FIG. 10A is a diagram illustrating pulses of each phase transmitted to the motor drive circuit 20 by the main CPU 41 in the “stop processing” and the “holding processing”. FIG. 10B is a diagram illustrating a rotation speed of the reel 3 with respect to a time when the motor driving circuit 20 drives the stepping motor 70 based on the pulse of each phase received from the main CPU 41.

  It is assumed that the time shown in FIG. 10B according to the present embodiment corresponds to the time shown in FIG. The dotted line in FIG. 10B indicates the rotation speed of the reel in FIG. 9B. The “stop processing completion” illustrated in FIG. 10B substantially coincides with the “target stop position” and the “actual stop position” illustrated in FIG. 9B, as described later in detail. The same applies to “stop processing completed” shown in FIGS. 11B and 12B.

  In this embodiment, when the stop command of the stepping motor 70 is generated by an external operation instruction, the “first reel stop processing” is performed by the main CPU 41 at a speed lower than the rotation speed at which the stepping motor 70 is rotating at a constant speed. This means that the main CPU 41 executes a control to reduce the rotation speed to a low rotation speed, and thereafter executes a stop control by two-phase excitation for the stepping motor 70.

  Specifically, in the “first reel stop processing”, as shown in FIGS. 10A and 10B, after the stop button 4 is pressed, the main CPU 41 executes the “symbol processing”, and After that, the main CPU 41 executes the "deceleration process", and thereafter, after the main CPU 41 executes the "excitation process" by the two-phase excitation, the reel 3 is stopped. As shown in FIG. 8, the “first reel stop processing” includes “deceleration processing” and “excitation processing (two-phase excitation)” which are not included in “general reel stop processing”.

  As shown in FIG. 10A, the interrupt processing according to the present embodiment is performed at a time interval of, for example, 2.232 ms, unlike the above-described “general reel stop processing”. Here, the time interval of the interrupt processing can be determined based on the relationship of the driving frequency of the stepping motor 70 as described above. The drive frequency S of the stepping motor 70 at a constant speed can be expressed by a relational expression of S = (the number of rotations of the reel 3 per second) × (the number of steps per rotation of the stepping motor 70).

  The above (the number of rotations of the reel 3 per second) is, for example, 80 rpm / 60 sec × 7 (reduction ratio), (the number of steps per rotation of the stepping motor 70) is, for example, 48, and the excitation method is Assuming that the two-phase excitation method is adopted and the reduction ratio is 1: 7, the driving frequency S of the stepping motor 70 is 448 pps.

  Therefore, since the oscillation period T is 1 / S, it is 2.232 ms. Since the oscillation cycle T (2.232 ms) is a value (oscillation cycle T> clock cycle) close to the minimum clock cycle (for example, 1.2 ms) used in the main CPU 41, the interrupt processing is performed for 2.2232 ms. Done at time intervals. In the "second reel stop processing" and "third reel stop processing" to be described later, interrupt processing is performed at similar time intervals.

  As shown in FIG. 10B, the “first reel stop processing” is performed during the time (about 190 ms) from when the stop button 4 is pressed until the stop processing is completed. Done. In this “deceleration process”, the main CPU 41 issues a command for reducing the constant rotation speed (for example, 80 rpm) of the reel 3 to a predetermined rotation speed (for example, 40 rpm) for a time corresponding to the predetermined interrupt number. Only to the motor drive circuit 20.

  Specifically, as shown in FIG. 10, the main CPU 41 performs two-phase excitation as a command to reduce the constant rotation speed (for example, 80 rpm) of the reel 3 to a predetermined rotation speed (for example, 40 rpm). The pulse is transmitted for a predetermined time interval. The motor drive circuit 20 that has received the two-phase excitation pulse excites, for example, the B phase and the C phase based on the received pulse, and reduces the rotation speed of the rotor (for example, to 40 rpm).

  When the “deceleration process” is completed, the main CPU 41 executes stop control (excitation process) by two-phase excitation. In the “excitation process” by two-phase excitation, the main CPU 41 transmits, for example, a pulse for exciting the C phase and the D phase to the motor drive circuit 20 after the “deceleration process” ends, as shown in FIG. . The motor drive circuit 20 excites, for example, the C phase and the D phase for a predetermined time interval based on the received pulse. When the “excitation process” continues for a predetermined time interval, the stepping motor 70 stops completely.

  Here, since the reduction transmission mechanism 700 according to the present embodiment has a reduction ratio of “1: n” (for example, n = 7), the inertia moment J ′ generated when the reel 3 is rotating is reduced. It is a value (J / n) obtained by dividing the moment of inertia J when the transmission mechanism 700 is not provided by n at the speed reduction ratio.

  Therefore, the detent torque Td1 in the “first reel stop process” is 1 / n of the detent torque Td in the “general reel stop process” {Td1 = Td / n = (J / n) · ω / Δt}. Therefore, the braking time Δt1 in the “first reel stop process” also becomes a value reduced by n at the reduction ratio “1: n” {Δt = (J / n) · ω / Td1}.

  Similarly, in the “second reel stop process” and the “third reel stop process” described later, the detent torques Td2 and Td3 and the braking times Δt2 and Δt3 in the respective processes are also the same as the detent torque Td1 and the braking time Δt1. Is reduced by the same relational expression.

  Therefore, the “first reel stop processing”, the “second reel stop processing”, and the “third reel stop processing” can reduce the magnitude of the detent torque in the “general reel stop processing”. At the same time, the braking time in the “general reel stop processing” can be reduced.

(3) Second Reel Stop Processing FIG. 11 is a diagram showing the contents of the “second reel stop processing”. FIG. 11A is a diagram illustrating pulses of each phase transmitted to the motor drive circuit 20 by the main CPU 41 in “stop processing” and “holding processing”. FIG. 11B is a diagram illustrating a rotation speed of the reel 3 with respect to a time when the motor driving circuit 20 drives the stepping motor 70 based on each phase pulse received from the main CPU 41. The time shown in FIG. 11B according to the present embodiment corresponds to the time shown in FIG. The dotted line in FIG. 11B indicates the rotation speed of the reel in FIG. 9B.

  In the “second reel stop processing”, when the stop command of the stepping motor 70 is generated by an external operation instruction, the main CPU 41 causes the stepping motor 70 to perform two-phase excitation (for example, C-phase and D-phase). Means that the vibration damping member 75 attenuates the vibration of the reel 3 generated when the rotation of the reel 3 is stopped.

  Specifically, in the “second reel stop processing”, as shown in FIGS. 11A and 11B, after the stop button 4 is pressed, the “symbol processing” is executed, and the two-phase After the “excitation process” by the excitation is performed, and after the “damping action by the damping member 75” acts, the reel 3 is stopped. As shown in FIG. 8, the "second reel stop processing" includes a "damping action by the damping member 75" which is not included in the "general reel stop processing", and further includes a "two-phase excitation". Excitation process ”is included.

  As shown in FIG. 8, the “second reel stop processing” does not include the “deceleration processing” in the “first reel stop processing”, but the “damping action by the damping member 75” operates. I do. The “damping action by the damping member 75” means that the vibration of the reel 3 generated when the rotation of the reel 3 is stopped is attenuated by using the damping member 75.

  As a result, the braking time Δt2 and the detent torque Td2 of the reel 3 in the “second reel stop processing” are the same as the braking time Δt1 and the detent torque Td1 in the “first reel stop processing”. The braking time Δt and the detent torque Td in the “processing” can be reduced.

(4) Third reel stop processing
FIG. 12 is a diagram illustrating the content of the “third reel stop process”. FIG. 12A is a diagram illustrating pulses of each phase transmitted from the main CPU 41 to the motor drive circuit 20 in “stop processing” and “holding processing”. FIG. 12B is a diagram illustrating a rotation speed of the reel 3 with respect to a time when the motor driving circuit 20 drives the stepping motor 70 based on each phase pulse received from the main CPU 41. The time shown in FIG. 12B according to the present embodiment corresponds to the time shown in FIG. The dotted line in FIG. 12 (b) indicates the rotation speed of the reel in FIG. 9 (b).

  This “third reel stop process” is performed when the stop command of the stepping motor 70 is generated by an external operation instruction, and the main CPU 41 sets the rotation speed to a rotation speed lower than the rotation speed at which the stepping motor 70 is rotating at a constant speed. The control for reducing the speed is executed, and the stop control by the two-phase excitation (for example, the C phase and the D phase) is executed for the stepping motor 70. 3 means to attenuate the vibration.

  Specifically, in the “third reel stop processing”, as shown in FIGS. 12A and 12B, after the stop button 4 is pressed, “symbol processing” is executed, and “deceleration” is performed. After that, the "excitation process" by two-phase excitation is executed, and the "damping action by the damping member 75" is further actuated, and the reel 3 is stopped.

  The “third reel stop processing” includes a “damping action by the damping member 75” which is not included in the “general reel stop processing”, and the “third reel stop processing” is not executed in the “general reel stop processing”. "Deceleration processing" and "excitation processing" by two-phase excitation are included. Since the description of each process is as described above, the details are omitted here.

  For this reason, the braking time Δt3 and the detent torque Td3 of the reel 3 in the “third reel stop processing” are the same as the respective braking time and detent torque in the “first reel stop processing” and the “first reel stop processing”. Similarly, it is possible to reduce the braking time Δt and the detent torque Td in “general reel stop processing”.

(5) Actually Measured Waveform FIG. 13A is an actually measured waveform showing the rotation speed of the reel 3 with respect to the time when the “general reel stop processing” (see FIG. 8) is executed. FIG. 13B does not show measured waveforms for the “first reel stop processing” to “third reel stop processing”, but shows the time when only “excitation processing by two-phase excitation” is performed. 6 is an actually measured waveform showing the rotation speed of the reel 3. FIGS. 13C to 13E are actually measured waveforms showing the rotation speed of the reel 3 with respect to the time when the “first reel stop processing” is executed.

  Here, in “448 pps → deceleration processing (224 pps × 2 pulses) → holding processing” shown in FIG. 13C, “symbol processing” having an interruption processing at an interval of 2.232 ms (cycle of the driving frequency 448 pps) is performed. Then, "deceleration processing" having an interruption process of 2.232 ms.times.4 (double the period of the driving frequency of 224 pps) is performed, and then "holding process" is performed. Similarly, the flow of arrows in FIGS. 13D and 13E is shown by the flow according to FIG. 13C.

  FIG. 13B shows a comparison between the measured waveform of “general reel stop processing” shown in FIG. 13A and the measured waveform of only “excitation processing by two-phase excitation” shown in FIG. The braking time Δt1 (the time from when the excitation process is executed to when the reel 3 reaches the target stop position; the same applies hereinafter) is clearly shorter than the Δt0 shown in FIG. Similarly, when the measured waveform of the “general reel stop processing” shown in FIG. 13A is compared with the measured waveform of the “first reel stop processing” shown in FIGS. The braking times Δt21, Δt22 and Δt23 shown in FIGS. 13 (c) to 13 (e) are clearly shorter than Δt0 shown in FIG. 13 (a). As a result, the “excitation processing by two-phase excitation” according to the present embodiment can clearly shorten the braking time as compared with the “excitation processing by all-phase excitation” in the “general reel stop processing”.

  Also, comparing the actually measured waveform of only the “excitation process by two-phase excitation” shown in FIG. 13B and the actually measured waveform of the “first reel stop process” shown in FIGS. 13C to 13E, The amplitude of the reel 3 shown in FIGS. 13C to 13E is smaller than the amplitude of the reel 3 shown in FIG. As a result, the amplitude of the reel 3 can be more effectively attenuated by executing the “deceleration process” according to the present embodiment than by the stop process that does not execute this process.

  Further, comparing the measured waveforms shown in FIGS. 13 (c) to 13 (e), the processing time in the “deceleration process” becomes longer (FIG. 13 (c) → FIG. 13 (d) → FIG. 13 (e)). The amplitude of the reel 3 becomes smaller, and the decay time of the amplitude of the reel 3 becomes shorter (about 300 ms → about 210 ms). Therefore, the longer the processing time in the “deceleration process”, the more effectively the amplitude of the reel 3 can be reduced, and further, the time of decay of the amplitude of the reel 3 can be reduced.

  FIGS. 14A and 14B are actually measured waveforms showing the rotation speed of the reel 3 with respect to the time when the “second reel stop processing” and the “third reel stop processing” are executed, respectively. The pressing force on the reel 3 in FIGS. 14A and 14B is 200 gf and 100 gf, respectively. The pressing force applied to the reel 3 means the weight given to the reel 3 by the damping member 75 in the "damping action by the damping member 75".

  In “448 pps → holding process” shown in FIG. 14A, “symbol process” having an interrupt process at an interval of 2.232 ms (cycle of 448 pps in drive frequency) is performed, and “holding process” is performed. Means that In “448 pps → deceleration processing (224 pps × 2 pulses) → holding processing” shown in FIG. 14 (b), “symbol processing” having an interruption processing at an interval of 2.232 ms (cycle of the driving frequency 448 pps) is performed, and This means that “deceleration processing” having an interruption process of 2.232 ms × 4 (twice the cycle of the drive frequency 224 pps) is performed, and then “holding process” is performed.

  Since the decay time of the amplitude of the reel 3 in the “second reel stop processing” (448 pps → holding processing) shown in FIG. 14A has the pressing force (200 gf) on the reel 3, The decay time of only the "excitation processing by two-phase excitation" (448 pps → holding processing) without pressing force is shorter than that of FIG. 13B (the decay time of FIG. 14A is about 80 ms, and that of FIG. It can be seen that the decay time is about 320 ms). Therefore, the “second reel stop process” does not include the deceleration process in the “first reel stop process”, and the decay time of only the “excitation process by two-phase excitation” shown in FIG. Thus, the decay time can be reduced, and the reel 3 can be more effectively damped.

  The decay time of the amplitude of the reel 3 in the “third reel stop processing” (448 pps → deceleration processing (224 pps × 2 pulses) → holding processing) shown in FIG. FIG. 13 (c) “First reel stop processing” (448 pps → deceleration processing (224 pps × 2 pulses) → holding processing) having the same deceleration processing and no pressing force on reel 3 ) Is shorter (the decay time in FIG. 14B is about 80 ms, and the decay time in FIG. 13C is about 300 ms). Accordingly, the “third reel stop processing” is not sufficiently shortened because the processing time in the deceleration processing is short, and thus the decay time is not sufficient. Further, the attenuation time can be shortened, and the reel 3 can be more effectively damped.

  As shown in FIG. 8, the “third reel stop process” illustrated in FIG. 14B is obtained by adding “deceleration process” to the process in the “second reel stop process”. 14A, the decay time can be reduced to the same extent as in FIG. 14A, and the reel 3 can be more effectively controlled. Can be shaken.

(Reel stop control method by motor stop control device)
The reel stop control method by the motor stop control device having the above configuration can be implemented by the following procedure. FIG. 15 is a diagram illustrating a flow of control by the motor stop control device.

  As shown in FIG. 15, when the player inserts a medal into the insertion slot 7 or presses the BET switch 2, the process in S101 becomes “YES”, and the main CPU 41 operates the start lever 9 It is monitored whether it has been performed (S102). Then, when the player operates the start lever 9, the main CPU 41 executes a process of simultaneously rotating the three stepping motors 70 (S103).

  Next, when the player presses any one of the stop buttons 4, the process in S104 becomes “YES”, and the main CPU 41 executes a reel stop process in the procedure shown in FIG. 16 (S105). When all of the three reels 3 have stopped, the main CPU 41 executes a winning determination process (S106, S107).

  Thereafter, when a winning is established, the process in S108 becomes "YES", and the main CPU 41 executes a winning process (for example, effect control for displaying a predetermined image on a screen, or a plurality of lamps in a predetermined order). And the like (lamp control for sequentially lighting) (S109). On the other hand, when the winning is not established, the process in S108 is “NO”, and the main CPU 41 ends without executing the process in S109.

  FIG. 16 is a flowchart showing details of S105 in FIG. FIG. 16A is a diagram illustrating a flow of the above-described “first reel stop processing”. Here, in the “deceleration process” according to the present embodiment, two-phase excitation is employed.

  As shown in FIG. 16A, the main CPU 41 is waiting for the start of the “symbol processing”. When the stop button 4 is operated by the player, the main CPU 41 executes a process of drawing a predetermined internally-winned symbol into the payline or, if this process is not performed, a process of the player. In accordance with the operation of the stop button 4, a deceleration process is performed to reduce the rotation speed (for example, 40 rpm) lower than the rotation speed (for example, 80 rpm) of the reel rotating at a constant speed (S202). In this deceleration process, the main CPU 41 outputs a pulse to the motor drive circuit 20 to make the rotation speed lower than a certain rotation speed.

  At this time, the main CPU 41 measures the duration of the deceleration process (S203). Then, when the predetermined time has elapsed, the process in S204 becomes “YES”, the main CPU 41 ends the deceleration process, and performs two-phase excitation (for example, C-phase and D-phase) via the motor drive circuit 20. (S205).

  Then, the main CPU 41 counts the duration of the excitation process by the two-phase excitation (S206), and when a predetermined time has elapsed, the process in S207 becomes “YES”, and the main CPU 41 The excitation process (stop control) by the two-phase excitation is terminated (S208).

  FIG. 16B is a diagram illustrating a flow of the above-described “second reel stop processing”. As shown in FIG. 16B, the main CPU 41 is waiting for the start of the “symbol processing”. When the stop button 4 is operated by the player, the main CPU 41 executes a process of drawing a predetermined internally-winned symbol into the payline or, if this process is not performed, a process of the player. In accordance with the operation of the stop button 4, an excitation process (stop control) by two-phase excitation (for example, C phase and D phase) is executed via the motor drive circuit 20 (S302). While the excitation processing by the two-phase excitation is being performed, the vibration damping member 75 performs the vibration damping action in parallel.

  Then, the main CPU 41 measures the duration of the excitation process by the two-phase excitation (S303), and when a predetermined time has elapsed, the process in S304 becomes “YES”, and the main CPU 41 The excitation process (stop control) by the two-phase excitation is terminated (S305). Since the damping action of the damping member 75 is a mechanical brake mechanism, it ends at the same time when the reel 3 stops.

  FIG. 16C is a diagram showing a flow of the above-described “third reel stop processing”. In the “third reel stop processing”, the vibration damping member 75 performs the damping action in parallel with the “first reel stop processing” shown in FIG. Therefore, the flow of the “third reel stop processing” is the same as the flow of the above-described “first reel stop processing”, and thus the details are omitted here.

(Operation and effect of the motor stop control device)
According to the invention according to the present application, the reduction transmission mechanism 700 transmits the rotation of the stepping motor 70 to the rotation shaft that rotates the reel 3 at a predetermined reduction ratio. A simple stepping motor can be employed.

  Further, after the main CPU 41 executes the control for reducing the rotation speed of the stepping motor 70, and then executes the stop control by the two-phase excitation for the stepping motor 70, the main CPU 41 places the reel 3 at a highly accurate position. Can be stopped. Furthermore, since the main CPU 41 can also execute stop control of the stepping motor by only two-phase excitation, the main CPU 41 can stop the reel 3 at a position with higher accuracy.

  Furthermore, since the main CPU 41 executes the control for reducing the rotation speed of the stepping motor 70, the main CPU 41 may impair the smoothness of the braking of the stepping motor 70 rather than sharply reduce the rotation speed of the stepping motor 70. And the reel 3 can be stopped at a highly accurate position. As a result, since it does not depend on the braking by the detent torque when the reel 3 is stopped, the above-mentioned balance adjustment at the time of manufacturing becomes unnecessary, and the operator can manufacture the reel unit in a small number of steps.

  Furthermore, since the damping member 75 is constantly urged against the reel 3, the damping member 75 can attenuate the vibration of the reel 3 when the rotation of the reel 3 is stopped. As a result, the damping member 75 can stop the reel 3 at a highly accurate position without impairing the smoothness of braking of the stepping motor 70. Further, since the vibration damping member 75 is provided, the above-described balance adjustment at the time of manufacturing becomes unnecessary, and the operator can manufacture the reel unit with fewer steps.

(First modification example)
Note that the present invention is not limited to the above embodiment, and the following changes can be made. In this modification, an oil damper 90 is provided instead of the vibration damping member 75 according to the above embodiment. FIG. 17 is a perspective view of an oil damper 90 according to the present modification.

  The oil damper 90 includes a rotating part 91 and a base 92, as shown in FIG. The base 92 is filled with oil having a predetermined viscosity. Since the base 92 is filled with oil, the rotational force of the rotating part 91 is buffered.

  FIG. 18 is a diagram showing an arrangement relationship of an oil damper 90 according to the present modification. As shown in FIG. 18, the oil damper 90 is arranged inside the reel 3 so that the gear formed on the rotating part 91 contacts the input gear 72.

  According to such a modified example, the rotational force of the rotating portion 91 is reduced by the oil filled in the base portion 92 (buffering force). For this reason, since the gear formed on the rotating portion 91 is in contact with the input side gear 72, the oil damper 90 has a braking action when the reel 3 is stopped by the buffering force of the rotating portion 91. Further, the oil damper 90 can attenuate the vibration of the reel 3 generated at the time of braking (or at the time of back crash) of the stepping motor 70 at an early stage.

(Second modification example)
Note that the present invention is not limited to the above embodiment, and the following changes can be made. This modification includes a felt 751, a high-friction member such as rubber, or a wave washer 752 instead of the vibration damping member 75 according to the above embodiment.

  FIG. 19A is a diagram illustrating a configuration of the felt 751 as viewed from above. FIG. 19B is a diagram illustrating a positional relationship where the felt 751 is arranged. As shown in FIGS. 19A and 19B, the felt 751 has a circular shape, and a hole into which the stopper 73 can be inserted is formed at the center. The felt 751 is stopped by the stopper member 73.

  FIG. 20A is a diagram illustrating a configuration of the wave washer 752 as viewed from above. FIG. 20B is a diagram illustrating a positional relationship in which the wave washers 752 are arranged. As shown in FIGS. 20A and 20B, the wave washer 752 has a wavy surface shape from the center to the outside, and a hole into which the stopper 73 can be inserted is formed in the center. ing. The wave washer 752 is stopped by the stopper member 73.

  In this case, the high friction member including the felt 751 and the wave washer 752 retained by the stopper member 73 can attenuate the vibration of the reel 3 generated during braking due to the frictional force of the high friction member. .

(Third modification example)
Note that the present invention is not limited to the above embodiment, and the following changes can be made. In this modification, the output gear 71 and the input gear 72 according to the above-described embodiment are formed by rubber rollers 711 and 721.

  FIG. 21 is a diagram illustrating a positional relationship in which the rubber rollers 711 and 721 are arranged. The two rubber rollers 711 and 721 make contact with each other and transmit rotation without slip due to a high friction coefficient. These two rubber rollers 711 and 721 are arranged inside the reel 3. Thereby, when vibration occurs on the axis of the reel 3 during braking of the stepping motor 70 (or at the time of back crash), the vibration can be absorbed by the rubber rollers 711 and 721 being elastically deformed.

  In this modification, instead of the output-side gear 71 and the input-side gear 72 formed of spur gears, the periphery of the output-side pulley 71 and the input-side pulley 72 is formed of a soft member containing rubber or urethane. A configuration in which an elastic belt 723 is stretched may be used. FIG. 22 is a diagram showing a positional relationship in which an output pulley 71, an input pulley 72, and a belt 723 made of rubber are arranged. The output pulley 71 and the input pulley 72 rotate as the belt 72 stretched around the output pulley 71 and the input pulley 72 rotates.

  Thus, when vibration occurs on the shaft of the reel 3 during braking of the stepping motor 70 (or at the time of back crash), the belt 72 made of a soft member expands and contracts to absorb the vibration.

  In this modification, any one of the output side gear 71 and the input side gear 72 formed of a spur gear may be a scissors gear. This eliminates backlash of the gears and makes it difficult to vibrate, and when vibration occurs on the shaft of the reel 3 during braking of the stepping motor 70, the output side gear or the input side gear formed by the scissors gear is used. Vibration can be absorbed. The material of the spur gear may be changed to a soft member such as polyamide. Thereby, the spur gear made of the soft member can absorb the vibration generated on the shaft of the reel 3 due to the elastic deformation.

  In the present embodiment, the deceleration process is added to the stop control of the stepping motor 70 that rotates at a constant speed. For example, the deceleration process may be performed by stop control when the rotation speed of the reel 3 fluctuates between 60 rpm and 80 rpm.

  In the present embodiment, the PM type is used for the stepping motor 70. However, the present invention is not limited to this. For example, a hybrid type having a small torque may be used for the direct acting type.

(Fourth modification)
As described above, according to the gaming machine according to the present invention, a low-cost stepping motor having a small rotating torque can be adopted, so that a stepping motor driven by a smaller power supply than before can be adopted for the gaming machine. It is possible (for example, a stepping motor in which the driving power supply of the conventional stepping motor is DC24V while the driving power supply of the conventional stepping motor is DC24V can be adopted in the game machine).

  Hereinafter, a method for supplying power to circuits and devices provided in the gaming machine will be described with reference to the drawings.

  First, in a conventional gaming machine, a method of supplying power to circuits and devices provided in the spinning-type gaming machine will be described with reference to the example of the spinning-type gaming machine. FIG. 23 is a diagram for explaining a method of supplying power to circuits and devices provided in a conventional spinning-type gaming machine.

  As shown in the figure, a power supply unit 200 includes a circuit (a main control circuit 210, a sub-control circuit 220, etc.) provided in a spinning-type gaming machine, and a device (a fluorescent tube 230 that irradiates light to a waist panel, The motor / solenoids 240, the button / sensors 250, the liquid crystal display device 260, etc.) are supplied with power required by the circuits and devices. Note that the motor / solenoids 240 are a drive unit of a stepping motor or a hopper, and the button / sensors 250 are a start switch, a inserted medal sensor, and the like.

  Specifically, the power supply unit 200 generates power of DC5V, DC12V and DC24V based on the supplied power of AC100V. Further, the power supply unit 200 supplies 100 V AC power to the fluorescent tube 230 and supplies the generated DC 5 V, 12 V DC and 24 V DC power to the main control circuit 210 and the sub control circuit 220.

  The main control circuit 210 generates 5 V DC as a power supply for logic (main CPU and the like) on the main control circuit 210 based on the 12 V DC power supplied from the power supply unit 200. In addition, the main control circuit 210 supplies power of DC 5 V and DC 24 V supplied from the power supply unit 200 to the motor solenoids 240. Further, the main control circuit 210 supplies the 5 V DC power supplied from the power supply unit 200 to the button sensors 250.

  The sub-control circuit 220 generates 5 V DC as a power source for logic (CPU, VDP, etc.) on the sub-control circuit 220 based on the 12 V DC power supplied from the power supply unit 200. The sub-control circuit 220 supplies 24 V DC supplied from the power supply unit 200 to the liquid crystal display device 260.

  According to the power supply unit configured as described above, the power supply unit 200 can supply power required by the circuits and devices to the circuits and devices provided in the spinning-type gaming machine. Here, since the conventional stepping motor and the liquid crystal display device 260 require a 24 V DC power supply, the power supply unit 200 generates the 24 V DC power supply and uses the generated 24 V DC power supply with the main control circuit 210 and the sub control circuit. 220 had to be supplied.

  Hereinafter, a method of supplying power to circuits and devices provided in the gaming machine according to the present invention will be described with reference to an example of a spinning-type gaming machine. FIG. 24 is a diagram for explaining a method of supplying power to circuits and devices provided in the spinning-type gaming machine according to the present invention in this modification.

  As shown in the figure, the power supply unit 300 provided in the spinning-type gaming machine 1 includes a circuit (the main control circuit 40, the sub-controlling circuit 50, and the like in the above-described embodiment) provided in the spinning-type gaming machine 1. And a device (the fluorescent tube 100a for irradiating the waist panel 100 with light in the above-described embodiment, the motor / solenoids 340, the button / sensors 350, the liquid crystal display device 15 in the above-described embodiment, and the like), Supply the power required by the equipment. Note that the motor / solenoids 340 are the drive unit of the stepper motor 70 and the hopper 14 in the above-described embodiment, and the button / sensors 350 are the start switch 9S and the inserted medal sensor 7S in the above-described embodiment. It is.

  Specifically, the power supply unit 300 generates a DC5V and a DC12V power supply based on the supplied AC100V power supply. In addition, the power supply unit 300 supplies AC 100 V power to the fluorescent tube 230 and supplies the generated DC 5 V and DC 12 V power to the main control circuit 40 and the sub control circuit 50.

  The main control circuit 40 generates DC5V as a power supply for logic (the main CPU 41 and the like) on the main control circuit 40 based on the DC12V power supply supplied from the power supply unit 300. Further, the main control circuit 40 supplies DC 5 V and DC 12 V power supplied from the power supply unit 300 to the motor solenoids 340. Here, the DC 5V power supplied to the motor / solenoids 340 is the power of the sensors (such as the position detection sensor 10 and the medal detection unit 14S) provided in the motor / solenoids 340. Is supplied to the motor / solenoids 340 by a drive unit (stepping motor 70, hopper drive unit, etc.). Further, the main control circuit 40 supplies DC 5 V power supplied from the power supply unit 300 to the button sensors 350.

  The sub-control circuit 50 generates 5 V DC as a power source for logic (CPU, VDP, etc.) on the sub-control circuit 50 based on the 12 V DC power supplied from the power supply unit 300. In addition, the sub-control circuit 50 supplies 12 V DC supplied from the power supply unit 300 to the liquid crystal display device 15.

  In this modification, the motor / solenoids 340 constitute driving means for driving predetermined devices (for example, reels 3L to 3R), and the main control circuit 40 constitutes controlling means for controlling the driving means. , The power supply unit 300 constitutes a power supply means for supplying power to the control means.

  In this modification, the gaming machine has been described as being a spinning-type gaming machine 1 (for example, a pachislot machine). However, the present invention is not limited to this, and a pachinko machine (ball-type gaming machine) may be used. There may be. At this time, the driving unit provided in the motor / solenoids 340 described above includes a solenoid for firing a game ball onto a game board, a solenoid for opening and closing a starting port and a winning port, and the like. The sensor provided in the solenoids 340 is a sensor that detects a game ball that has won a starting port or a special winning port.

  According to the spinning-type gaming machine 1 of the present modification, the turning-type gaming machine 1 includes the motor solenoids 340 driven by 12 V DC and the liquid crystal display device 15, so that the power supplied from the power supply unit 300 can be reduced. The number of types can be smaller than before. That is, in the conventional spinning-type gaming machine, the type of power supplied from the power supply unit 200 is three (5 V DC, 12 V DC and 24 V DC). There are two types of power supplied from the unit 300 (5 V DC and 12 V DC). As a result, a power supply unit 300 that is less expensive than in the past can be employed in the spinning-type gaming machine 1.

  Further, the main control circuit 40 generates a 5V DC as a power source for logic (the main CPU 41 and the like) on the main control circuit 40, and a driving unit (the stepping motor 70 or the like) provided in the motor solenoids 340. A common power supply (DC 12 V power supply) supplied from the power supply unit 300 can be used as the power supply to the hopper drive unit and the like.

(Fifth modification example)
The gaming machine according to the present invention is not limited to the above-described fourth embodiment, and the following changes may be made. FIG. 25 is a diagram for describing a method of supplying power to circuits and devices provided in a gaming machine according to the present invention in this modification, taking a case of a spinning-type gaming machine as an example.

  As shown in the figure, the power supply unit 300 generates a DC 12 V power supply from the supplied AC 100 V power supply, and supplies the generated DC 12 V power supply to the main control circuit 40 and the sub control circuit 50.

  The main control circuit 40 generates DC5V as a power supply for logic (the main CPU 41 and the like) on the main control circuit 40 based on the DC12V power supply supplied from the power supply unit 300. Further, the main control circuit 40 supplies the power of DC12V supplied from the power supply unit 300 and the generated power of DC5V to the motor solenoids 340. Here, the DC 5V power supplied to the motor / solenoids 340 is the power of the sensors (such as the position detection sensor 10 and the medal detection unit 14S) provided in the motor / solenoids 340. Is supplied to the motor / solenoids 340 by a drive unit (stepping motor 70, hopper drive unit, etc.). Further, the main control circuit 40 supplies the generated DC 5 V power to the button sensors 350.

  The sub-control circuit 50 generates 5 V DC as a power source for logic (CPU, VDP, etc.) based on the 12 V DC power supplied from the power supply unit 300. In addition, the sub-control circuit 50 supplies 12 V DC supplied from the power supply unit 300 to the liquid crystal display device 15.

  In this modification, the gaming machine has been described as being a spinning-type gaming machine 1 (for example, a pachislot machine). However, the present invention is not limited to this, and a pachinko machine (ball-type gaming machine) may be used. There may be. At this time, the driving unit provided in the motor / solenoids 340 described above includes a solenoid for firing a game ball onto a game board, a solenoid for opening and closing a starting port and a winning port, and the like. The sensor provided in the solenoids 340 is a sensor that detects a game ball that has won a starting port or a special winning port.

  According to the spinning-type gaming machine 1 in the present modification, the main control circuit 40 supplies the DC 5V power generated from the DC 12V power supplied from the power supply unit 300 to the motor solenoids 340 and the button sensors 350. By supplying the power, the types of power supplied from the power supply unit 300 can be further reduced. That is, in the conventional spinning-type gaming machine, the type of power supplied from the power supply unit 200 is three (5 V DC, 12 V DC and 24 V DC). The type of power supplied from the unit 300 is one (DC12V). As a result, a power supply unit 300 that is less expensive than in the past can be employed in the spinning-type gaming machine 1.

  Further, the main control circuit 40 generates a 5V DC as a power source for logic (the main CPU 41 and the like) on the main control circuit 40, and a driving unit (the stepping motor 70 or the like) provided in the motor solenoids 340. A common power supply (DC 12 V power supply) supplied from the power supply unit 300 can be used as the power supply to the hopper drive unit and the like.

It is a front view showing the front of the spinning-type gaming machine 1 according to the present embodiment. It is a perspective view showing composition which looked at a reel in this embodiment from an oblique direction. It is a figure showing the side of a reel in this embodiment. It is a figure showing the structure near the central axis of the reel in this embodiment. It is a figure showing the structure of the axis support part in this embodiment. It is sectional drawing which shows the structure at the time of the shaft support part in this embodiment being attached to the attachment plate. It is a figure showing the internal structure of spinning-type gaming machine 1 in this embodiment. It is a figure showing the contents of the reel stop processing in this embodiment. It is a figure showing the contents of "general reel stop processing" in this embodiment. It is a figure showing the contents of "1st reel stop processing" in this embodiment. It is a figure showing the content of the "2nd reel stop processing" in this embodiment. It is a figure showing the contents of the "3rd reel stop processing" in this embodiment. It is a figure showing an actually measured waveform of reel stop processing in this embodiment. It is a figure showing an actually measured waveform of reel stop processing in this embodiment. It is a figure showing the flow of the reel stop control method concerning this embodiment. It is a figure showing the flow of the reel stop processing concerning this embodiment. It is a figure showing the structure of the oil damper in the first modification. It is a figure showing the arrangement relation of the oil damper in the first modification. It is a figure which shows the structure and arrangement | positioning relationship of the felt in a 2nd modification. It is a figure which shows the structure and arrangement | positioning relationship of the wave washer in the 2nd modification. It is a figure showing the arrangement relation of the rubber roller felt in the 3rd modification. It is a figure showing the arrangement relation of the output side gear, the input side gear, and the timing belt in the third modification. It is a figure for explaining the prior art which supplies electric power to the circuit and the equipment provided in the spinning-type gaming machine. In the fourth modification, it is a figure for explaining a method of supplying electric power to circuits and devices provided in the spinning-type gaming machine 1. In the fifth modification, it is a figure for explaining a method of supplying power to circuits and devices provided in the spinning-type gaming machine 1.

Explanation of reference numerals

  DESCRIPTION OF SYMBOLS 1 ... Rotating machine, 2 ... BET switch, 3 ... Reel, 4 ... Stop button, 5 ... Panel display window, 6 ... Winning line, 7 ... Slot, 7S ... Insert medal sensor, 8 ... Tray, 9 Start lever, 9S Start switch, 10 Position detection sensor, 11 Detection piece, 12 Reel stop signal circuit, 13 Hopper drive circuit, 14 Hopper, 14S Medal detection Reference numeral 15, a liquid crystal display device, 16 a payout completion signal generation circuit, 20 a motor drive circuit, 31 an arm, 32 a cylindrical member, 33 a symbol mark, 34 a hole, 40 a main control circuit 41, Main CPU, 42, Control RAM, 43, Program ROM, 50, Sub-control circuit, 60, I / O, 70, Stepping motor, 71, Output gear, 72 ... Input gear, 72a, 72 ... Projecting portion, 73 ... Stopper material, 74a, 74b ... Collar, 75 ... Damping member, 76 ... Reel post, 76a ... Rotating shaft support, 76b ... Position fixing portion, 76c ... Projecting portion, 76d ... Screw hole, 76e ... Hole, 80 ... Mounting plate, 90 ... Oil damper, 91 ... Rotating part, 92 ... Base, 100 ... Waist panel, 100a ... Fluorescent tube, 200 ... Power supply unit, 210 ... Main control circuit , 220 ... sub-control circuit, 230 ... fluorescent tube, 240 ... motor solenoids, 250 ... button sensors, 260 ... liquid crystal display device, power supply unit 300, 340 ... Motor solenoids, 350 button sensors, 700 reduction transmission mechanism, 711, 721 rubber roller, 720 shaft support, 723 belt, 751 felt, 752 wave washer

Claims (5)

A motor stop control device for a spinning-type gaming machine, comprising a motor having two pairs of excitation phases as a drive source of a reel displaying a plurality of symbols, and stopping the motor in response to an operation instruction from outside,
A reduction transmission mechanism that transmits the rotation of the motor to a rotation shaft that rotates the reel with a predetermined reduction ratio,
When the motor stop command is generated by an external operation instruction, a motor stop control unit that executes control to reduce the rotation speed of the motor and performs stop control by two-phase excitation for the motor. A motor stop control device comprising: A motor stop control device for a spinning-type gaming machine, comprising a motor having two pairs of excitation phases as a drive source of a reel displaying a plurality of symbols, and stopping the motor in response to an operation instruction from outside,
A reduction transmission mechanism that transmits the rotation of the motor to a rotation shaft that rotates the reel with a predetermined reduction ratio,
A motor stop control unit that executes stop control by two-phase excitation for the motor when the motor stop command is generated by an external operation instruction;
A motor damping control device comprising: a damping member configured to attenuate a vibration of the reel caused when the rotation of the reel is stopped by a stop control of the motor stop control means.   The motor stop control means, when the motor stop command is generated by an external operation instruction, executes control to reduce the rotation speed of the motor, and then executes stop control by two-phase excitation for the motor. The motor stop control device according to claim 2, wherein A game machine comprising: driving means for driving a predetermined device; control means for controlling the driving means; and power supply means for supplying power to the control means.
The power supply means supplies a first power supply and a second power supply to the control means,
The control means operates by a third power supply generated from the first power supply,
The gaming machine, wherein the driving means is operated by the first power supply and the second power supply supplied from the power supply means via the control means. A game machine comprising: driving means for driving a predetermined device; control means for controlling the driving means; and power supply means for supplying power to the control means.
The power supply unit supplies a first power supply to the control unit,
The control means operates by a third power supply generated from the first power supply,
The gaming machine, wherein the driving means is operated by the first power supply supplied from the power supply means via the control means, and the third power supply generated by the control means.

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