JP6512342B2 - Gaming machine - Google Patents

Description

  The present invention relates to a gaming machine suitable for being applied to a slot machine or the like for playing a game by stopping a plurality of rotation drums and then stopping the rotation drums.

  A slot machine etc. are known as a game machine which plays a game by stopping a plurality of revolving bodies after stopping the revolving bodies, for example (see, for example, patent document 1).

  For example, in a slot machine game, as well known, when a player bets medals and operates a start lever, the game is started, and when the start lever is operated by internal processing, the game is won for that game It is determined whether or not it is. When it is determined that the player wins, and the player operates the stop button to stop the rotation of each orbiter, the medals will be paid out if the winning symbols (patterns) are aligned, or the player is advantageous for the special It is a game which shifts to a game, and it is possible to enjoy a wide variety of games.

Japanese Patent Application Laid-Open No. 10-174739

  As exemplified above, for example, the orbiting body accelerates in conjunction with the operation of the start lever, etc., and then shifts to constant speed rotation, and repeats the operation such as stopping in conjunction with the operation of the stop button etc. As a drive motor suitable for driving a rotating body, a four-phase stepping motor, a five-phase stepping motor and the like are known as well as a two-phase stepping motor.

  The present invention proposes a gaming machine capable of realizing suitable rotation in a gaming machine using the stepping motor as exemplified above.

The invention according to claim 1 is
A rotating body with a pattern,
A stepping motor for rotating the orbiting body;
Drive control means for driving and controlling the stepping motor;
A gaming machine for playing a game by stopping the rotating body after rotating the rotating body,
The drive control means
Stop control means for executing stop control to stop the rotation of the orbiting body;
Rotation amount detection means for detecting, as rotation amount information, a rotation amount of the orbiting body from when the stop control is executed by the stop control means to when the rotation of the orbiting body is stopped;
The rotation control according to the rotation start position is executed, and the rotation of the orbiting body is advanced by the rotation amount information from the rotation position of the orbiting body when the stop control is executed by the stop control means. Rotation control means for executing rotation control to start rotation of the orbiting body with the position as the rotation start position;
Equipped with
The process of driving and controlling the stepping motor by the drive control means is executed as part of a timer interrupt process which is periodically executed while interrupting other processes.
The drive control means outputs an excitation signal for driving and controlling the stepping motor without waiting for the end of a process different from the process for driving and controlling the timer interrupt process as the process for driving and controlling the stepping motor. And
The rotation control means
First means for specifying an initial excitation phase at the start of the next rotation of the orbiting body based on the excitation phase when the stop control is executed by the stop control means;
From the initial excitation phase specified by the first means, the excitation phase to be excited is advanced by the step angle number corresponding to the rotation amount information detected by the rotation amount detection means to set the initial excitation phase A second means for correcting and deriving a corrected excitation phase;
Third means for outputting the excitation signal to the corrected excitation phase derived by the second means at the start of the next rotation;
It is characterized by having.

  According to the present invention, suitable rotation can be realized in a gaming machine using a stepping motor.

It is a perspective view in the state where the front door was closed at the time of applying the gaming machine concerning this invention to a slot machine. It is a perspective view of a slot machine in the state where a front door was opened. It is a circuit block diagram of a slot machine. It is an assembly perspective view of a left rotation drum. It is an expanded view of a seal wound on a left convoluted cylinder. It is a figure which shows the operation principle of a stepping motor. It is a connection diagram showing a drive system of a stepping motor. It is explanatory drawing which shows the example of an excitation process of 1-2 phase excitation. It is a figure which shows the drive characteristic of a stepping motor. It is a figure which shows the relationship of the excitation phase at the time of acceleration processing. It is a figure which shows the relationship at the time of stop processing of a rotating drum. It is a figure which shows the relationship between the excitation order of an excitation phase, and the sliding of a rotor. It is a systematic diagram which shows an example of an arithmetic processing circuit when a rotary encoder is used as a sliding amount detection means. FIG. 6 is a waveform diagram for describing the operation thereof. It is a flowchart which shows the example of a power activation process. It is a flowchart of a main flow. It is a flowchart of a lottery processing routine. It is a flowchart of a rotation control process routine. It is a flowchart of a medal payout processing routine. It is a flowchart of a special state processing routine. It is a flowchart of a bonus symbol / replay symbol determination processing routine.

  First, the invention group that can be extracted from the present embodiment will be divided and shown as means n (n = 1, 2, 3...), And these will be described while showing effects etc. as necessary. In the following, for ease of understanding, the corresponding configuration in the present embodiment is appropriately described in parentheses or the like, but the present invention is not limited to the specific configuration illustrated in the parentheses or the like.

(Means 1) "In a gaming machine which plays a game by stopping the rotating drum after rotating the plurality of rotating drums, the rotational position detecting means for detecting the rotational position of the rotating drum drive motor is provided. A game machine characterized in that an excitation phase of a rotating drum drive motor at the time of starting the above-described rotating drum is controlled based on the output of the position detecting means. "
According to this gaming machine, the excitation phase (initial excitation phase) of the drive motor at the time of initial rotation of the turning drum is determined in consideration of the excitation phase at the time of stop or rotation start of the drive motor. The excitation phase is obtained based on rotational position information at the time of stopping or starting of the drive motor when the drive motor is braked. By considering the excitation phase at the time of stop or start, the continuity of phase excitation at the time of rotation start is secured, and the deviation from the original initial excitation phase is eliminated. Therefore, the stability at the start of rotation of the drive motor In other words, the stability of the rotating drum at the time of start of rotation can be secured. By securing the stability of the rotation start, concentration on the game can be increased, and the player's interest can be enhanced.

(Means 2) "In means 1, the rotation position information of the drive motor is a rotor sliding amount."
According to this gaming machine, the rotational position of the drive motor when the drive motor is stopped corresponds to the amount of sliding movement of the rotor, so that the detection information from the sliding amount detection means can be used as rotor rotational position information.

(Means 3) "In means 1, the amount of sliding includes at least the amount of sliding from when the rotation motor is braked to when the rotation of the drive motor actually stops. "
In this gaming machine, the sliding amount is a concept including at least a rotation amount (rotation angle) from when the drive motor is braked to when the rotation of the rotor is stopped, and the initial excitation phase is determined from this sliding amount. The rotational position of the rotor after applying the brake is the rotational position when the rotor starts, and the stop rotational position when the rotor stops by applying the brake, and forcibly rotating this rotor after the rotor stops. It refers to any of the rotational positions when sliding.

(Means 4) "In means 1, a game machine characterized in that the rotational position detecting means is a sliding amount detecting means."
In this gaming machine, the amount of rotation of the rotor after braking is equivalent to the amount of sliding of the rotor, so the rotational position of the rotor can be detected by the sliding amount detecting means.

(Means 5) A gaming machine characterized in that, in the means 1, the rotational position detection means is attached to the rotating drum drive motor.
In this gaming machine, by directly attaching (directly connecting) the rotational position detecting means to the rotating drum drive motor, the rotational state of the rotating drum can be detected simply.

(Means 6) [Means 4 are characterized in that the excitation phase of the drive motor at the time of the start of rotation of the rotating cylinder is controlled based on the detection output at the time of rotation stop obtained from the sliding amount detecting means] A game machine. "
In this gaming machine, since the detection output of the sliding amount detection means at the time of rotation stop of the rotating drum corresponds to the excitation phase at the time of rotation stop, based on this detection output so that the continuity of the excitation phase is secured. The excitation phase of the drive motor is set. The excitation phase next to the excitation phase when the rotation is stopped is the initial excitation phase. Since the drive motor is started based on the original initial excitation phase by such setting processing of the excitation phase, stable initial rotation of the drive motor can be realized, and out-of-step and unstable initial rotation can be swept out.

(Means 7) "In means 4, the excitation phase of the drive motor at the time of the rotation start of the rotating cylinder is controlled based on the detection output at the time of the rotation start obtained from the sliding amount detection means A game machine. "
According to this gaming machine, the excitation phase at the start of rotation can be determined by processing the sliding amount detection output, so the excitation phase next to this excitation phase is set as the initial excitation phase. As a result, the excitation order for the drive motor becomes the normal excitation order, and a more stable initial drive can be realized. Since the initial excitation phase is determined based on the excitation phase at the start of rotation, even when the rotor rotational position at start is different from the rotor rotational position at the time of braking and stopping, the detection output at the start of rotation Can be used to detect the excitation phase at the start of rotation.

(Means 8) "In means 4, the above-mentioned sliding amount detecting means is a rotary encoder."
According to this gaming machine, by using the rotary encoder, it is possible to detect the sliding amount of the drive motor at the time of rotation stop or rotation start, so the next initial excitation phase can be obtained just by storing the excitation phase corresponding to the sliding amount. It can be easily set.

(Means 9) "In means 8, an excitation phase corresponding to the sliding amount detection output when the drive motor is braked, and a sliding amount corresponding to the sliding amount detection output when the drive motor is stopped From the above, a game machine characterized in that an initial excitation phase is set. "
According to this gaming machine, the sliding amount of the rotor from when the brake is applied is detected from the sliding amount output when the brake is applied and the sliding amount output when the rotor is stopped, which corresponds to the sliding amount The next excitation phase of the excitation phase advanced by the step angle number is set as the initial excitation phase. By so doing, continuity of the excitation phase is secured, and stable rotational start can be realized.

(Means 10) A gaming machine characterized in that, in means 8, an initial excitation phase at the time of driving of the next motor is set based on the sliding amount detection output at the time of rotation stop of the drive motor.
Since the stop excitation phase is known based on the sliding amount detection output at the time of rotation stop, the next initial excitation phase can be set more easily. The amount of slippage to the rotational position (rotational position at stop) where the brake is applied to the rotational drive motor is the amount of sliding as described above, but when this rotational position at stop actually starts the rotational drive motor It may be different from the rotation position (rotation position at start-up). For example, although it is rare, the rotation stop position may be intentionally changed, and then the start rotation position is different from the stop rotation position at which the brake was actually stopped. It may be expressed as the amount of sliding including. Normally, the stop rotational position of the drive motor coincides with the start rotational position.

  When using an absolute encoder as a rotary encoder, the amount of sliding movement, and hence the excitation phase at the starting rotational position, can be known even when the rotor is turned intentionally after stopping the rotor, thus ensuring continuity of the excitation phase it can.

  Since this is an absolute encoder, it is possible to detect the rotor rotational position at startup even when the power is turned on.

(Means 11) "In means 4, the sliding amount detecting means has a plurality of sliding amount detecting sensors, and the plurality of sliding amount detecting sensors are arranged along the rotation direction of the rotating drum. A game machine to play. "
According to this gaming machine, the plurality of sliding amount detection sensors are appropriately arranged along the rotation direction of the rotating drum, and the outputs from the plurality of sliding amount detection sensors are used to slide the driving motor when the rotation is stopped. Since the quantity can be detected, stable rotational start can be realized.

(Means 12) A gaming machine characterized in that, in the means 1, the drive motor is a two-phase stepping motor adopting a one-two phase excitation system.
According to this gaming machine, since the drive motor is a stepping motor, high torque and high stop accuracy can be obtained. In addition to this, since it is a 1-2 phase excitation system, eight types of excitation steps (excitation order) are decided by the combination of 2 types of 1 phase excitation and 2 phase excitation, and the specification of the excitation phase when the rotation is stopped is It will be easier.

(Means 13) A gaming machine characterized in that, in the means 12, an excitation period of one-phase excitation and two-phase excitation is gradually shortened during an acceleration period until the above-mentioned turning drum reaches constant speed rotation.
According to this gaming machine, it accelerates to reach constant speed rotation while absorbing as much as possible indefinite rotation (the short-term vibration including rotation fluctuation and rotation unevenness. Hereinafter referred to as rotation fluctuation) of the drive motor at the time of rotation start. Since the interruption timing (application timing) of the excitation signal applied to each excitation phase is controlled to be gradually shortened, the step out due to the omission of the excitation signal is eliminated and the instability of the rotation due to the rotational vibration can be avoided. As a result, it is possible to provide a gaming machine capable of immersing in a game without diverting the player's interest.

  When the minimum interrupt timing for the drive motor is about 1.49 msec in terms of time, this time 1.49 msec is the interrupt minimum time of the excitation signal. By increasing the interrupt timing (time to hold the same excitation state) at the initial stage of acceleration and gradually shortening the interrupt timing as approaching the constant speed rotation, it is possible to increase the rotational torque at the initial stage of acceleration while avoiding the influence of the rotational shake. This makes it possible to absorb the vibrations of the rotor even in the case where the stop position of the rotor is forced, that is to say intentionally changed, so that there is no risk that the rotational stability will be impaired even in such special cases. .

(Means 14) A gaming machine characterized in that, in the means 13, the end of the acceleration period is a 1-2 phase excitation in which 1 phase excitation and 2 phase excitation are sequentially switched at a minimum interrupt interval to transition to constant speed rotation.
According to this gaming machine, by setting the end of the acceleration period to 1-2 phase excitation in which 1 phase excitation and 2 phase excitation are sequentially switched at the minimum interrupt interval, the combination with the configuration of the means 11 makes it possible to determine more smoothly. It can transition to fast rotation.

(Means 15) “In the above means 1, when the spinning drive processing is set as a part of the timer interrupt processing, the excitation signal to the drive motor is driven in the above drive without waiting for the completion of processing other than the spinning drive processing. A game machine characterized by outputting to the motor side. "
According to this gaming machine, even if there are many processes other than the rotating drum driving process in the periodic interrupt process, it is the minimum without waiting for the processing time required for the processes other than the rotating drum driving process. The excitation signal can be output to the input / output port in synchronization with the interrupt cycle. Therefore, since the drive motor is always excited in synchronization with this interrupt cycle, very stable rotational drive can be realized.

  Incidentally, when an excitation signal is output to the input / output processing circuit (input / output port) after waiting for processing other than spinning drive processing, the output timing to the input / output processing circuit is an interrupt based on the length of time required for those processing. It will be longer or shorter than the cycle. Since the interruption cycle of the excitation signal to the drive motor fluctuates by this time fluctuation, phase excitation synchronized with the interruption cycle can not be realized, resulting in unstable rotation driving. Periodic interrupt processing can be realized by timer interrupt processing.

  (Mean 16) "In any of means 1 to 15, the gaming machine is a pachinko machine." Here, the pachinko machine has an operating handle as its basic configuration, and the gaming ball is operated according to the operation of the operating handle. In a predetermined game area, and the variable display of the symbols on the display device is started on the condition that the game ball wins in the operation opening disposed at the predetermined position in the game area. Also, during the occurrence of the special gaming state, the game ball can be won by the winning opening disposed at a predetermined position in the gaming area being opened in a predetermined manner, and a valuable value is awarded according to the number of winnings. Game machine made to be played. The valuable value may be reduced as a prize ball, or card-like recording media such as a magnetic card may be used to write valuable information corresponding to the valuable value.

  In a pachinko machine, a special gaming state (big hit state) which is a state advantageous to a player who can obtain at least a large number of game balls, and a normal gaming state which is a state disadvantageous to a player consuming the game balls There are various game modes.

  (Means 16) "In any of means 1 to 15, the gaming machine is a slot machine." Here, as a basic configuration, the slot machine has a plurality of units for identifying the gaming state according to the gaming state. The display device is provided to display the symbols after changing the symbol row consisting of the symbols, and the variation of the symbols is started due to the operation of the starting operation means (for example, the operation lever) and the operation for stopping It is made to stop the fluctuation of the symbol due to the operation of the means (for example, stop button) or when the predetermined time elapses, and it is advantageous for the player as the necessary condition that the final symbol at the stop is the specific symbol. It is a gaming machine provided with a special gaming state generating means for generating a special gaming state.

  In the gaming machine described above, a special gaming state (big hit state) which is a state advantageous to a player who can obtain at least a large number of game media, and a normal gaming state which is a state disadvantageous to a player consuming game media There are two types of gaming modes. As a game medium used in this type game machine, coins, medals and the like can be mentioned as typical examples.

  (Means 18) "In any of means 1 to 15, the gaming machine is a gaming machine combining a pachinko machine and a slot machine." Such a gaming machine (multifunction machine) has, as its basic configuration, According to the game state, the display device is provided to display the symbol after the variable display of the symbol row consisting of a plurality of identification information for identifying the game state, and further, the operation of the starting operation means such as the operation lever As a result, the variation of the symbol is started, and the variation of the symbol is stopped due to the operation of the stop operation means such as the stop button or when the predetermined time elapses, and the final symbol at the time of the stop is the specific symbol And a special game state generation means for generating a special game state advantageous to the player as a necessary condition, using a game ball as a game medium, and starting to change identification information Is on the occasion requires a predetermined number of game balls are configured gaming machine as upon occurrence of a special game state is a number of game balls are paid out.

  In the gaming machine described above, a special gaming state (big hit state) which is a state advantageous to a player who can obtain at least a large number of game balls, and a normal gaming state which is a state disadvantageous to a player consuming the game balls There are two types of gaming modes.

  Next, embodiments of the present invention will be described using examples. FIG. 1 is a perspective view of a slot machine 10 according to an embodiment of the present invention in a state in which the front door is closed, FIG. 2 is a perspective view of the slot machine 10 in a state in which the front door is opened. Is a block diagram illustrating an example connection.

  In the slot machine 10 applied as this embodiment, the front door 12 is pivotably attached to the main body 11 with the left side as a pivot, and the front door 12 is locked by the locking device 20 when the front door 12 is closed. .

  The front door 12 has an upper lamp 13 which lights and blinks with the progress of the game, and speakers 14 and 14 for emitting various sound effects and notifying the player of the game state as the game progresses. The game panel 30, which can see through the left upper drum 15, the left rotating drum L, the middle rotating drum M, and the right rotating drum R, and various buttons 51, 53 to 56 in the approximate middle, respectively. , 61 to 63, the start lever 52, and the medal insertion slot 57, the lower plate 16 on which the model name and characters related to the game are displayed, and the medals paid out from the medal payout opening 17 A medal receiver 18 to be received is attached. Inside the main body of the slot machine 10, a power supply box 85 (see FIG. 3) and a control device 70 (see FIG. 3) are mounted.

  The game panel 30 is disposed on the left side of the exposure window 31L and exposure windows 31L, 31M, 31R that expose the state of the left rotation drum L, the middle rotation drum M, the right rotation drum R during stop or rotation to the outside Five bet lamps 32, 33, 33, 34, 34, and three display units (credit number display unit 35, game number display unit 36, and payout number provided below the exposed windows 31L, 31M, 31R) And a display unit 37).

  The exposure windows 31L, 31M, and 31R are formed to have sizes that can expose three patterns vertically for the left rotating drum L, the middle rotating drum M, and the right rotating drum R, respectively, which are stopped. For this reason, 3 × 3 = 9 (symbol) is displayed to the player in a state where all the turning drums L, M, R are stopped. Then, a total of five lines, that is, the upper, middle, and lower horizontal lines and a pair of diagonal lines displayed by alternate long and short dash lines in FIG. 1 are appropriately validated according to the number of medals to be betted. The exposure windows 31L, 31M, and 31R can be integrated into one to be a common exposure window.

  Note that the activated line is referred to as an "effective line", and the combination of a predetermined award being awarded is referred to as a "winning". However, when "Cherry" is present in the symbols on the effective line among the three symbols of the left rotating drum L which has stopped, this is also referred to as "winning".

  Since the left rotating drum L, the middle rotating drum M, and the right rotating drum R are configured by the same units, the left rotating drum L will be described as an example based on FIGS. 4 and 5. FIG. 4 is an assembled perspective view of the left convoluted cylinder L, and FIG. 5 is a developed view of the seal 47 wound around the left convoluted cylinder L. As shown in FIG. The left rotating drum L is a cylindrical frame member in which seals 47 having 21 symbols (identifying elements) drawn at equal intervals are wound on the outer peripheral surface of a cylindrical frame member 40 forming a cylindrical cage. The bosses 41 are attached to the drive shaft of the left stepping motor 71L via a disk-shaped boss reinforcing plate 42.

  The left stepping motor 71L is fixed by a screw 43a to a motor plate 43 vertically provided inside the main body 11 shown in FIG. 2, and the light emitting element and the light receiving element are paired with the motor plate 43. A rotating cylinder index photo sensor (rotational position detection sensor) 44 is installed. A pair of photo sensors (not shown) constituting the rotating drum index sensor 44 are arranged above and below with a predetermined interval.

  The stepping motor 71L is provided with a sliding amount detecting means 73 for detecting the sliding amount of the stepping motor 71L, that is, the rotating drum as described later. A rotary encoder or the like can be used as the sliding amount detection means 73. In the case of a rotary encoder, this rotary encoder is directly connected to the rotation shaft of the stepping motor 71L. With this direct coupling structure, the sliding amounts of the rotating drums L, M, R can be simply detected by the configuration of the sliding amounts of the drive motors 71 (71L, 71M, 71R).

  A proximal end portion 45b of the sensor cut bun 45 extending in the radial direction is fixed to the boss reinforcing plate 42 integrated with the left convoluted barrel L by a screw 45c. The tip end portion 45 a of the sensor cut bun 45 is bent so as to be approximately 90 ° and is aligned so as to be able to pass through the gap between both elements of the revolving index photo sensor 44. Then, each time the left turning cylinder L makes one rotation, the turning cylinder index photo sensor 44 detects the passage of the front end portion 45 a of the sensor cut van 45 and outputs a detection signal to the control device 70 each time detection is performed. Based on this detection signal, the angular position of the left turning drum L can be confirmed and corrected every one rotation. In addition, as for the seal | sticker 47 wound by each rotating cylinder, the thing from which the order and the generation frequency of the pattern drawn in each differed is used.

  The stepping motor 71L is set so that the left turning cylinder L makes one revolution by a drive signal (excitation signal) of 504 pulses, and the rotational position is controlled by this pulse. That is, since the 21 symbols are sequentially exposed from the exposure window 31L when the left turning cylinder L makes one revolution, it takes 24 pulses (= 504 pulse ÷ 21 symbols) to switch from one symbol to the next. Then, based on the number of pulses from the time when the detection signal of the rotating body index photo sensor 44 is output, it is recognized which pattern is exposed from the exposure window 31L, or exposing any pattern from the exposure window 31L Can.

  FIG. 6 is a connection diagram showing the operation principle of the stepping motor 71L. In this embodiment, a hybrid (HB) type two-phase stepping motor employing a 1-2 phase excitation system is used as the stepping motor 71L. The stepping motor is not limited to a hybrid type or two phase, and various stepping motors such as a four phase or five phase stepping motor can be used.

  As is well known, the hybrid stepping motor 71L comprises a rotor 60 disposed at the center and first to fourth poles 601 to 604 disposed around the rotor 60.

  The rotor 60 is composed of a near side rotor 60a magnetized to an N pole and a far side rotor 60b magnetized to an S pole, and teeth (small teeth) and teeth provided around the near side rotor 60a. In the meantime, it is attached to the rotating shaft in a state of being relatively shifted by 1/2 pitch so that the teeth provided around the back side rotor 60b are located. A cylindrical magnet (not shown) is attached between the near side rotor 60a and the far side rotor 60b.

  The exciting coils L0 and L2 are bifilar wound on the first and third poles 601 and 602 as shown in FIG. 7, and the winding end of the exciting coil L0 and the winding start end of the exciting coil L2 are connected. A predetermined DC power supply + B (for example, +24 volts) is applied to the Similarly, the exciting coils L1 and L3 are also bifilar wound on the second and fourth poles 602 and 604, and the winding end of the exciting coil L1 and the winding start end of the exciting coil L3 are connected, and the DC described above Power supply + B is applied.

  Here, as described above, the excitation signal is applied to the first excitation coil L0 to excite the first pole 601 to the S pole, and the phase exemplified to the third pole 603 to the N pole is the A phase, The excitation signal is applied to the excitation coil L2 of No. 3 to excite the first pole 601 to the N pole, and the phase to excite the third pole 603 to the S pole is the A-phase, and to the second excitation coil L1. The excitation signal is applied to excite the second pole 602 to the S pole, and the phase that excites the fourth pole 604 to the N pole is B phase, and the excitation signal is applied to the fourth excitation coil L3, A phase in which the 2 pole 602 is excited to the N pole and a fourth pole 604 is excited to the S pole is referred to as a B-phase.

  Then, in the case of the one-phase excitation drive method, the rotor 60 is rotationally driven clockwise (or counterclockwise) by sequentially applying excitation signals to the A-phase, B-phase, A-phase and B-phase. Can.

  That is, for example, when electricity is first applied to the A phase, the protrusion of the first pole 601 which has become the S pole, the teeth of the near side rotor 60a, the protrusion of the third pole 603 which has become the N pole and the teeth of the back side rotor 60b respectively When the suction force faces each other and the B phase is energized next, the protrusion of the second pole 602 which has become the S pole, the teeth of the near side rotor 60a, the protrusion of the fourth pole 604 which has become the N pole and the teeth of the back side rotor 60b. When the A-phase is energized, the projection of the first pole 601 which has become the N pole, the teeth of the back side rotor 60b, the projection of the third pole 603 which has become the S pole and the front side The teeth of the rotor 60a face each other by suction, and then, when the B-phase is energized, the projection of the second pole 602 which has become the N pole, the teeth of the back side rotor 60b, and the fourth pole 604 which has become the S pole. Projection and front side rotor 60 And teeth facing the respective suction force. By exciting in this order, the rotor 60 rotates clockwise in FIG. 6 (one-phase excitation drive).

  On the other hand, in this embodiment, the 1-2 phase excitation drive which performs 1 phase excitation and 2 phase excitation alternately is adopted. In the 1-2 phase excitation drive, excitation is performed according to the following excitation sequence (excitation sequence) of (1) to (8).

  That is, as shown also in FIG. 8, in 1-2 phase excitation drive, (1) A phase is energized (1 phase excitation), and (2) both A phase and B phase are energized (2 phase excitation) Similarly, (3) B phase is energized, (4) both B phase and A-phase are energized, (5) A-phase is energized, (6) A-phase and B-phase both (7) B-phase, (8) both B-phase and A-phase are energized, and then return to (1). By adopting this 1-2 phase excitation drive, the angle change per step is about 0.714 ° per step of the 1 phase excitation drive.

  Drive signals for the stepping motors 71L, 71M, 71R are given to the motor driver 712 as excitation phase pattern data (hereinafter referred to as excitation data) for determining an excitation phase as shown in FIG. The excitation data is stored in the RAM 76 shown in FIG. 3, and is output to the input / output processing circuit 80 based on a command from the CPU 72 by timer interrupt processing in a rotation control processing routine described later. An excitation phase for the stepping motors 71L, 71M, 71R is determined by the excitation data, and an excitation signal (current) is supplied to the excitation phase.

  If the above-described excitation order is disturbed at the start of rotation, that is, at the time of initial excitation, as described later, in some cases, step-out may occur or rotation may become unstable.

  As shown in FIG. 1, the one-bed lamp 32 is disposed on the left side of the middle horizontal line, and the two-bed lamps 33 and 33 are disposed on the left side of the upper horizontal line and the lower horizontal line. The lamps 34, 34 are disposed on the left side of the pair of diagonal lines. The timing at which each bet lamp 32, 33, 33, 34, 34 lights up will be described in the procedure for betting medals described later.

  The credit number display unit 35 displays the number stored in the slot machine when a credit function to be described later is effective. The number-of-games display unit 36 performs JAC (jack) several times after the big bonus, for example. It displays the number of times whether or not the JAC symbol formation still remains at the time of the JAC game whether it is possible or the number-of-payouts display unit 37 is paid out when the same symbol is aligned on the effective line. The number is displayed.

  The operation unit 50 includes a credit button 51, a start lever 52, a left rotation stop button 53, a middle rotation stop button 54, a right rotation stop button 55, a return button 56, and a horizontal step provided on the front surface. A medal insertion slot 57, a single bet button 61, a double bet button 62 and a max bet button 63 provided in the unit are provided.

  The credit button 51 is turned on when it is pressed once, turned off when it is pressed again, and then it is configured as a toggle type in which the on / off is switched each time the push button operation is performed. When the credit button 51 is in the OFF state, the display of the credit number display unit 35 disappears, and the medal inserted from the medal insertion slot 57 and the medal to be paid out when winning is paid out to the medal receiver 18 from the medal payout opening 17. Further, when the credit button 51 is in the on state, a number (“0” when turned off from on) is displayed on the credit number display unit 35, and the credit function is enabled. Here, the credit function is a function of storing the exceeded number of sheets in the slot machine when the number inserted from the medal insertion slot 57 exceeds the number of max bets (here, 3 sheets), Is displayed on the number-of-credits display section 35. When one or more credit number display units 35 are displayed and the credit button 51 is pressed to turn off, medals corresponding to the displayed number are paid out from the medal payout opening 17 to the medal receiver 18 and medals are paid out. Every time the credit number display unit 35 decrements the value by one, the display disappears after the value becomes zero.

  The start lever 52 is a lever that the player manually presses to start the game and automatically returns to the original position after the player's hand is released. When the start lever 52 is operated while the medals are betted, the start switch 52a (see FIG. 3) is turned on to generate a start command, and the drums L, M, R are simultaneously moved by the start command. Start to rotate.

  The stop button 53 for the left turning cylinder, the stop button 54 for the middle turning cylinder, and the stop button 55 for the right turning cylinder respectively stop the left turning cylinder L, the middle turning cylinder M, and the right turning cylinder R during rotation. Is a button for pressing with a finger, and interlocked with each button 53, 54, 55 when it is pressed, stop switch 53a for the left turning cylinder, stop switch 54a for the middle turning cylinder, stop switch 55a for the right turning cylinder (see FIG. 3) is turned on and a stop command is generated. Each stop button 53, 54, 55 is turned on by a lamp (not shown) while the turning drums are rotating at a constant speed, and is turned off when the rotation is stopped.

  The return button 56 is a button that is pressed when the medal inserted into the medal insertion slot 57 is clogged, and when the button is pressed, the clogged medal is returned from the medal payout opening 17. The medal insertion slot 57 is an entrance for inserting a medal, and the inserted medal is either to a storage passage 91 leading to a hopper 86 provided therein or to a payout passage 92 leading to the medal payout opening 17. Led. Switching between the storage passage 91 and the payout passage 92 is performed by the medal passage switching solenoid 66.

  Each bet button 61, 62, 63 is a button for determining the number of medals to be betted in the game before the game is started. Here, the procedure for betting medals will be described. When the credit button 51 is off (when the credit number display unit 35 is off) or when the credit button 51 is on and the stored number and the bet number are both zero ("0" is displayed in the credit number display unit 35) When a medal is inserted from the medal insertion slot 57), a bet is displayed.

  When the first medal is inserted into the medal insertion slot 57, the single bet lamp 32 is turned on, the middle horizontal line corresponding thereto becomes an effective line, and the second medal is inserted into the medal insertion slot 57. Then, the two bet lamps 33 and 33 are turned on, and a total of three lines including the upper and lower horizontal lines corresponding to the two bets become effective lines, and the third medal is inserted into the medal insertion slot 57. Then, the three bet lamps 34 and 34 are turned on, and a total of five lines including a pair of diagonal lines corresponding to the lights become effective lines.

  When four or more medals are inserted into the medal insertion slot 57, the medals are returned from the medal payout opening 17 to the medal receiver 18 when the credit button 51 is off, that is, when the credit function is not effective. When is on, that is, when the credit function is valid, the activated line is stored in the slot machine by the number of medals inserted as it is, and the stored number is displayed on the credit number display unit 35. The maximum number of credits is determined (for example, 50), and when the number of medals exceeding that is inserted, it is returned from the medal payout opening 17 to the medal receiver 18.

  When three or more medals are stored, when the one-bet button 61 is pressed, the numerical value displayed on the credit number display unit 35 is decremented by one and the one-bed lamp 32 is turned on. The horizontal line becomes an effective line, and when the 2 bet button 62 is pressed, the numerical value displayed on the credit number display portion 35 is decremented by 2 and the 1 bet lamp 32 and the 2 bet lamps 33, 33 are displayed. Lights up to activate a total of 3 lines, and when the max bet button 63 is pressed, the value displayed on the credit number display section 35 is decremented by 3 and all bet lamps 32, 33, 33, 34 , 34 lights up, and a total of five valid lines are activated.

  On the other hand, when two medals are stored, the same operation as before is performed when the one-bed button 61 or the two-bed bet button 62 is pressed, but when the max bet button 63 is pressed, the two-bed bet button 62 is operated. It operates in the same manner as when it is pressed, and when only one medal is stored, it operates in the same manner as the previous when one bet button 61 is pressed, but the two bet button 62 and the max bet button 63 When it is pressed, it operates in the same manner as when the 1-bed bet button 61 is pressed.

  As shown in FIG. 2, the power supply box 85 includes a power switch 81, a reset switch 82, a setting key insertion hole 83, and the like. When the power switch 81 is turned on, power is supplied to the CPU 72 and other components. When the power switch 81 is turned on while the reset switch 82 is turned on, the contents of the RAM 76 are reset, and when it is turned on, the error state is reset. Setting key switch 83a (see FIG. 3) is turned on by inserting a setting key (not shown) in setting key insertion hole 83, and the setting state of slot machine 10 can be changed from "setting 1" to "setting 6".

  The hopper 86 comprises an auxiliary tank 87 for storing medals, and a payout device 88 for dispensing the medals in the auxiliary tank 87 to the medal payout opening 17 through the opening 93 communicating with the payout passage 92. The payout device 88 feeds the medals to the opening 93 while rotating a medal delivery rotary plate (not shown) by the hopper drive motor 65 (see FIG. 3).

  As shown in FIG. 3, the control device 70 is configured as a microcomputer centered on the CPU 72. The CPU 72 is connected to a power supply box 85 for supplying power and a clock circuit 78 for outputting a rectangular wave of a predetermined frequency. In addition, a ROM 74 for storing processing programs, a RAM 76 for temporarily storing data, and an input / output processing circuit 80 are connected by a bus 79.

  The counter 77 is used to detect the rotation state of the rotating drums L, M, R, and is reset every rotation, and is incremented every 24 steps, and is incremented every one step, It consists of a symbol offset counter that is reset in 24 steps.

  In the control device 70, a detection signal from the rotation index photo sensor 44, a reset signal from the reset switch 82, an on / off signal from the setting key switch 83a, and each bet switch 61a, 62a interlocked with the bet buttons 61, 62, 63. , 63a, an on / off signal from the credit switch 51a linked to the credit button 51, a start command signal from the start switch 52a linked to the start lever 52, left, middle, right turn stop button 53, 54, 55, stop command signals from the left, middle, and right torso stop switches 53a, 54a, 55a, detection signals from the payout sensor 64 for detecting medals dispensed from the hopper 86, left torso L, middle torso M, Stepper motor 7 for driving left, middle and right rotating drums to drive right rotating drum R L, 71M, such as the position detection signal from the 71R is input through the input-output processing circuit 80.

  From the control device 70, lighting signals to the upper lamp 13 and the 1 to 3 bet lamps 32, 33 and 34, display signals to the credit number display unit 35, the game number display unit 36 and the payout number display unit 37, and payout Drive signals to the hopper drive motor 65 that causes the apparatus 88 to perform dispensing operations, to the left, middle, and right stepping motor stepping motors 71L, 71M, and 71R that drive the left turning drum L, the middle turning drum M, and the right turning drum R. Control signals for driving the medal passage switching solenoid 66, which controls whether the medal inserted in the medal insertion slot 57 is led to the hopper 86 or the medal payout opening 17, and the sound effect generated from the speaker 14, etc. A command signal to the audio control device 84, a command signal to the display control device 94 for controlling the display contents of the liquid crystal display 15, etc. are output through the input / output processing circuit 80.The control device 70 is provided with various counters such as a credit counter that counts the number of credits.

  By the way, in the case of using the stepping motor 71 (71L, 71M, 71R) as a rotating body drive motor of the slot machine, a drive characteristic as shown in FIG. 9 is required. This drive characteristic is such that an acceleration period Ta from when the stepping motor 71 starts rotating after the start button 52 (which may be a start control lever) is operated to a constant speed rotation, a constant speed rotation period Tb, It is divided into stop periods Tc including a predetermined slip in relation to the operation of the stop buttons 53-55. While there is no restriction on how much the acceleration period Ta has to be, when the stop buttons 53 to 55 are not operated, the time obtained by adding the constant velocity period Tb to the acceleration period Ta must be at least 30 seconds. There is a regulation. The stop period Tc is also required to fix the excitation phase to the drive motor within a maximum of about 190 msec after operating the stop button.

  In the acceleration period Ta, it is necessary to shift to the constant speed rotation state as soon as possible, and for that purpose, the interrupt to the excitation phase to the stepping motor 71 (switching from one phase excitation to two phase excitation which is excitation phase and 2 It is sufficient to speed up the switching from phase excitation to one phase excitation), but doing so may also promote step-out and rotational instability as described above. Therefore, it is necessary to perform optimal interrupt processing to realize the shortest acceleration processing without causing step-out and rotational instability.

  In order to apply an excitation signal to the excitation coil by interrupt processing, it is necessary to set an appropriate interrupt timing for the excitation phase, in order to at least avoid the influence of rotational vibration of the rotor 60 as much as possible especially during motor acceleration. Instead of switching the excitation phase in the minimum unit, hold the excitation state for the initial excitation phase to which the excitation signal is applied for a while.

  Basically, it is considered to be able to avoid the influence of the magnitude of the rotational torque at the time of rotational start and the instability and the instability of the rotation as much as possible. The degree of convergence of rotational vibration (fine vibration) of the rotor 60 generated when the teeth of the rotor 60 are attracted to the tooth sides of the poles 601 to 604 is different depending on the suction force generated by the initial excitation. The difference also depends on the inertia of the rotating drums L, M, R, etc. According to the experiment, the rotor 60 is stopped after 5 to 6 reciprocations of one reciprocation (cycle) per 30 msec are repeated, so the influence of the rotation sway In order to avoid as much as possible, about 10 times the minimum interrupt timing is required. Therefore, this period is fixed (held) at least to the same excitation phase. However, as the stepping motor, a hybrid (HB) type two-phase stepping motor employing a 1-2 phase excitation system is used.

  Here, when the minimum interrupt time to the CPU 72 described above is set to 1.49 msec, the initial excitation holding time is set to 1.49 msec × 10 interrupts = 14.9 msec. Of course, setting longer than this is no problem.

  The excitation data for the excitation signal shown in FIG. 8 is output to the motor driver 712 so as to be continuously excited during the 10 interruption period. The acceleration period is set to about 138 msec in the example of FIG. 8, but the value is arbitrary.

  Even during the acceleration period from the initial excitation, one-phase excitation and two-phase excitation are alternately repeated. However, as an excitation timing of the excitation phase, in other words, as a phase excitation retention period, for example, as shown in FIG. Is finely controlled so that In the hybrid (HB) type two-phase stepping motor adopting the 1-2 phase excitation method as the stepping motor, in the example shown, the first excitation (initial excitation) is performed for 10 interrupts, and therefore phase excitation holding for 10 interrupts The second excitation is performed for eight interrupts, and as shown in FIG. 10 below, the interrupt is set to be gradually shorter to shorten the excitation time, and finally the excitation phase is performed with the minimum interrupt interval. Is set to an interrupt that can transition to the normal 1-2 phase excitation (constant speed rotation period) in which is sequentially switched.

  Therefore, as shown in FIG. 10, when the last excitation phase of the acceleration period is two-phase excitation and this is one interrupt, the first excitation phase of the next constant-speed rotation period is one-phase excitation, and It is one interrupt which is the minimum interrupt interval. As described above, by shortening the interrupt processing timing in the acceleration period as the constant speed rotation is sequentially made, high speed acceleration processing can be realized in a short time, and a smooth transition to constant speed rotation is possible. Become.

  The acceleration period shown in FIG. 10 is an example when the entire acceleration period is set to approximately 138.57 msec. Therefore, when the overall acceleration period is set to a value different from this, the acceleration period shown in FIG. Needless to say, the interrupt processing timing is selected, and the interrupt processing different from the interrupt processing shown in FIG. 10 is performed accordingly.

  The drive control processing for the winding drum is performed in a timer interrupt processing routine for the CPU 72 as shown in FIG. 16 described later, and this drive control processing routine is also processed in a loop of various processing routines, and all processing ends. Information indicating the processing result at the stage is given to the input / output processing circuit (input / output port) 80 shown in FIG. However, since these processing times by interrupt processing differ depending on the event that occurs, the output timing of the excitation signal for driving the rotating drum is also influenced by this interrupt processing time.

  As a result, an interrupt is performed every minimum interrupt time (1.49 msec), and data for an excitation signal necessary for one-phase excitation or two-phase excitation (for example, 8-bit data (hexadecimal display) as shown in FIG. 8) Even if it is attempted to output to the motor driver 712 via the input / output processing circuit 80, the output intervals can not be made uniform. That is, the output interval slightly fluctuates due to the length of the other interrupt processing time. This can not realize more stable rotation of the trunk.

  In order to solve this, the data output interval is equalized by outputting the data for the excitation signal to the input / output processing circuit 80 without waiting for the processing time of the other timer interrupt processing. By so doing, it is possible to output excitation signal data to the motor driver 712 at constant intervals regardless of the amount of other interrupt processing time. As a result, the phase excitation timing becomes constant, and the rotation of the stepping motors 71L, 71M, 71R becomes stable, so that the player can be concentrated on the game by the stable rotation of the turning drums L, M, R.

  Subsequently, stop processing (brake processing) of the rotating drums L, M, R will be described. After the stop button is operated, stop the rotating drums L, M, R within the specified time ts (= 190 msec) shown in Fig. 111, including slip processing (rotation processing for 1 to 4 symbols as described later) I have to let it go. Therefore, in the embodiment, at the time of the stop processing, the switching from the 1-2 phase excitation to the four phase excitation is performed. The suction force acts on all the poles 601 to 604 by the four-phase excitation, so that the rotating drums L, M, and R can be smoothly stopped without disturbance in rotation.

  The timing (interruption) to switch from 1-2 phase excitation to 4 phase excitation is immediately after 2 phase excitation. This is because stepping motors 71L, 71M, and 71R are easier to identify the rotational position in the two-phase excitation mode than in the single-phase excitation mode, so stopping position accuracy immediately after the two-phase excitation improves the stop position accuracy. It is because

  By the way, as described above, when any one of the stop buttons 53, 54, 55 is operated, the drive motors 71L, 71M, 71R at the timing when each rotating drum L, M, R is stopped with a predetermined symbol. Is braked against When it is time to apply the brake, the excitation phase at that time is four-phase excitation as described above, so all phases are excited simultaneously.

  Since the rotor 60 and the rotating drum have inertia, for example, even if the brake is applied to the timing of the A phase as shown in FIG. 12, the rotor 60 does not stop at this A phase but slides by a predetermined step angle It is normal to stop from Since one step angle is a rotation angle when an excitation signal is given to one excitation phase, for example, when sliding is performed by n step angles and stopped, the excitation phase to be excited next to rotate the rotating drum is A, When the rotor 60 is stopped by sliding by 4 step angles as shown in FIG. 12 as shown in FIG. 12, it is the next excitation phase (A-phase and B-phase). The excitation phase of is the excitation phase during the next rotation. A more stable start can be expected by giving an excitation signal to this original initial excitation phase.

  Conventionally, only the excitation phase at the braking timing can be grasped, so the excitation phase next to the excitation phase at the braking timing is often the initial excitation phase at the next rotation. The reason why only the excitation phase at the time of applying the brake can be grasped is that there is no means for grasping the sliding amount of the drive motor 71.

  Therefore, conventionally, the initial excitation phase at the next rotation of the spinning drum is determined based on the excitation phase when the brake is applied. Therefore, depending on the sliding amount, a step out (rotation stop in the forward or reverse direction) Or, it may be unstable initial rotation. For example, it has been confirmed by various experiments that such a phenomenon easily occurs when the excitation phase is separated by about 4 step angles as shown in FIG. Such a phenomenon that occurs in the initial stage of rotation of the turning drum can also reduce the player's interest.

  Ideally, as shown in FIGS. 12 and 8, the brake is applied at the timing of A phase which is one phase excitation, and the rotor 60 is stopped at the excitation phase (A-phase) advanced four phases from that. Then, in the next rotation, the next excitation phase (A-phase and B-phase) of the excitation phase (A-phase) becomes the initial excitation phase.

  In this way, the continuity of the excitation order at the time of rotational start can be secured, and it is possible to avoid the step-out phenomenon such as the rotation stop that is likely to occur at the time of rotational start and unstable rotation. The setting process of the initial excitation phase may be performed when the drive motor 71 is stopped, or may be performed at the time of reading an excitation signal at the time of performing the initial excitation (during rotation start).

  As described above, in order to control the excitation of the next rotation including the sliding amount generated when the drive motor is stopped, rotational position information at the time of the rotation stop or at the time of the rotation start is used in relation to the drive motor 71. As the rotational position information, it is optimal to use the sliding amount of the rotor after applying the brake, and therefore, the sliding amount detecting means 73 for the drive motor is provided.

  The initial excitation phase is calculated using the output from the sliding amount detecting means 73. In this case, as shown in FIG. 4R>, in addition to the rotational position detection sensor 44, a sliding amount detection means 73 may be provided for the drive motor 71 (71L, 71M, 71R). In this example, a rotary encoder is attached as the sliding amount detecting means 73. The rotary encoder 73 is directly connected to the rotation shaft of the drive motor 71 in order to simplify the configuration.

  As the rotary encoder 73, either an absolute encoder or an incremental encoder is used. In the case of an absolute encoder, the current position can be detected even when the slot machine device power is turned on. In the case of an incremental encoder, the current position is not known at startup of the device power supply, but the current position can be detected by counting the number of pulses from this origin if the drive motor is rotated once to detect the origin. .

  The resolution of the rotary encoder 73 is required to be at least the number of steps of the drive motor 71 (step 504 in this example as described later). Preferably, if the resolution is equal to or the integral multiple of the number of steps, control can be easily performed since the step angle can be calculated simply by using the encoder output.

  By using the rotary encoder 73, the position of the pattern drawn on the seal 47 and the amount of sliding movement in the pattern can be grasped respectively, so the rotor 60 based on the excitation phase when the brake is applied as shown in FIG. The amount of sliding can be detected from this rotary encoder output.

  For example, when the brake is applied in the A phase, the rotary encoder output REa at that time is temporarily stored in the RAM 76 as shown in (Usage example 1) of FIG. Then, from the difference (ΔRE = REb−REa), the sliding amount, that is, the sliding step angle number is calculated.

  When the rotary encoder output RE is output as a pulse corresponding to 1: 1 with respect to the step angle, the number of pulses from when the brake is applied corresponds to the number of step angles of the sliding amount. If the next excitation phase of the excitation phase advanced by the number of pulses is set as the initial excitation phase, the excitation phase when the brake is applied and the excitation phase corresponding to the position at which the rotor 60 actually stopped are shifted. Even at this time, since the next excitation phase of the excitation phase corresponding to the position at which the rotor 60 has stopped can be set as the initial excitation phase, stable initial rotation can be realized as described above.

  FIG. 13 shows a specific example of the arithmetic processing circuit 75 equipped when using an incremental encoder as the rotary encoder 73. As shown in FIG. From the rotary encoder 73, pulse signals of the a-phase and the b-phase which are 90 ° out of phase with each other are output. These a-phase and b-phase signals are supplied to the waveform shaping circuit 751 constituting the arithmetic processing circuit 75, and are output as pulse signals (a-phase, b-phase) whose waveform is shaped as shown in FIGS. 14A and 14B.

  These pulse signals subjected to waveform shaping are supplied to the rotation direction detection circuit 753 to detect the rotation direction (clockwise or counterclockwise). For example, in the case of FIGS. 14A and 14B, a high level rotation direction signal (FIG. 14C) is obtained. On the other hand, in the case of FIGS. 14D and 14E, a low level rotational direction signal (FIG. 14F) is obtained, so that the rotational direction of the rotor 60 (clockwise CW and counterclockwise CCW) can be detected by this level difference. .

Among the pulse signals whose waveform is shaped, for example, the pulse signal of a phase is further supplied to the counter 754, and the number of pulses at the time of rising is counted, for example. When the resolution of the rotary encoder 73 is the same as the step angle number of the drive motor 71, the sliding amount can be directly calculated by this count number. By the way,
One count = 360 ° / 504 = 0.7 ° = 1 step angle.

  The detection output of the rotational direction and the counter output of the counter 754 are respectively supplied to a latch circuit 755, and each value is latched every one step angle, that is, every one count, and in this example, as 8-bit digital data. The setting of the initial excitation phase and the transmission timing of the excitation signal for the initial excitation phase are controlled by being sent to the RAM 76 and the CPU 72 via the input / output processing circuit (input / output port) 80 (see FIG. 3R> 3).

  Instead of detecting the sliding amount from the difference, the following means may be taken. As shown in (Usage example 2) of FIG. 8, the rotary encoder output REb at the point where the rotor 60 is stopped by applying a brake is temporarily stored. One rotation of the rotor 60 is 504 pulses. As shown in FIG. 8, since the excitation order (excitation step) in which the excitation phase makes a round is eight steps, the rotor 60 makes one rotation at 8 × 63 steps = 504 steps. Therefore, for example, when a rotary encoder output RE where one step angle corresponds to one pulse is obtained, it is possible to know at which excitation step the rotor 60 has stopped by calculating the remainder of (REb / 8). The next excitation phase next to the excitation phase corresponding to this stopped excitation step is the next initial excitation phase. These arithmetic processes are performed by the CPU 72 to obtain the initial excitation phase of the next rotation.

  The setting process of the initial excitation phase may be performed when the drive motor 71 stops (during rotation stop), or may be performed at the time of reading an excitation signal when performing the initial excitation (during rotation start).

  The following problems can also be addressed when determining the initial excitation phase at the start of rotation. For example, in a game arcade in which a slot machine is installed, an employee or the like turns the rotor 60 by hand before the shop is opened, and all three symbols are specific symbols (such as a symbol for regular bonus and a symbol for big bonus) There is a game arcade which takes a method to increase the degree of expectation to a big chance for a player who enjoys a game at the same time as opening a store. In such a case, the rotor 60 is stopped at a rotational position (i.e., a rotational position at start-up) that is completely different from the rotor rotational position (stop-time rotational position) stopped when the brake is applied.

  When an absolute encoder is used as the rotary encoder 73, the rotational position of the rotor 60 can be detected even when the drive motor 71 is stopped or the power is turned on. Therefore, the encoder output of the rotary encoder 73 is detected at the time of rotational start. If so, the initial excitation phase can be easily determined from this encoder output, and even when the rotor 60 is intentionally rotated, the continuity of the excitation phase can be secured and stable rotational start can be realized.

  As described above, even when the starting rotational position is different from the stopping rotational position, the amount of sliding movement can be detected including the amount of sliding by this manual turning, so that it is possible to perform initial excitation by the continuous excitation phase.

  A sliding amount detection means other than the rotary encoder 73 can also be used. For example, if the rotational position detection sensor 44 of the rotor 60 is provided for the drive motor 71 and the counter 77 described later is operated by the output from the rotational position detection sensor 44, the symbol position etc. can be grasped based on the counter output . FIG. 4 shows an embodiment in which both the rotary encoder 73 and the rotational position detection sensor 44 are equipped.

  Here, 21 symbols (see FIG. 5) are drawn on one seal 47. Assuming that the stepping motor 71 uses a motor that makes one rotation at 252 steps × 2 = 504 steps, a sliding amount of 504/21 = 24 steps is required to rotate one symbol. In FIG. 4, a rotational position detection sensor 44 with respect to the rotating drum is provided. The counter 77 clears the detection output of the rotational position detection sensor 44, and if it increments by +1 every 24 steps, the value of the counter (referred to as a symbol number) corresponds to the symbol, and its value is "21" and the rotating drum 1 It will be a lap. Further, since one step is equal to the unit sliding amount of the symbol, the rotational position of the symbol can be grasped by the number of steps (symbol offset). In the present example, the counter 77 is composed of a symbol counter and a symbol offset counter.

  The sliding amount detection means may be other than the rotary encoder 73. For example, it can also be constituted by a plurality of sliding amount detection sensors. By arranging the plurality of sliding amount detection sensors while changing the attachment positions in the radial direction and the circumferential direction, for example, along the rotational direction of the revolving drums L, M, R, several step angle units or one The sliding amount can be detected in step angle units. Such rotation control processing and stop control processing are both performed in the rotation control processing routine S230 (see FIG. 18) as described later.

  Next, the operation of the slot machine 10 according to this embodiment will be described. The CPU 72 of the control device 70 starts the power on process shown in FIG. 15 when the power is turned on from the power off state. In the power-on process, first, it is determined whether the power switch 81 is turned on in a state where the reset switch 82 of the power supply box 85 is pressed (step S100). When the power switch 81 is turned on in a state where the reset switch 82 is pressed, the contents of the RAM 76 up to that point are cleared (step S110) and the power recovery flag is reset (= 0) (step S120). The power recovery flag is a flag that is set (= 1) when the power is off. That is, when the power is turned off, the power recovery flag is set, the state at that time is stored in the RAM 76 as power failure occurrence information, and the power failure occurrence information is held by the backup power supply.

  After the power recovery flag is reset in step S120, or when the power switch 81 is turned on without pressing the reset switch 82 in step S100, a setting key (not shown) is inserted into the setting key insertion hole 83 of the power supply box 85. It is determined whether the setting key switch 83a is turned on (step S130). When setting key switch 83a is turned on, one of six setting states ("setting 1" to "setting 6") can be selected by setting switch 83a, so it is determined which setting state is selected. Then, the internal processing according to the selected setting state is executed (step S140). Thereafter, the content stored in the RAM 76 is cleared (step S150), and the power recovery flag is reset (step S160).

  After resetting the power recovery flag in step S160, or when the setting key switch 83a is not turned on in step S130, it is determined whether or not the power recovery flag is set (step S170). When it is set, the power recovery processing for returning to the state before the power is turned off is performed based on the power failure occurrence information stored in the RAM 76 (step S180), and then this routine is ended.

  On the other hand, when the power recovery flag is not set in step 170, the power supply processing routine is ended as it is. By this power recovery process, for example, even if the power is turned off due to a power failure, when the power is recovered, the state before the power is turned off is restored.

[Main flow]
Next, the main flow of the slot machine 10 will be described. The CPU 72 of the control device 70 starts the main flow shown in FIG. In this main flow, first, it is determined whether or not a medal has been bet (step S200). When the medal is betted, the start lever 52 is subsequently operated to turn on the start switch 52a to determine whether or not the start command is generated (step S210), and when the start command is generated, the drawing of FIG. After the processing routine (step S220), the torso control processing routine of FIG. 18 (step S230), the medal payout processing routine of FIG. 19 (step S240), and the special state processing routine of FIG. The data generated by the process of (1) is output to the input / output processing circuit 80 (step S247). However, the data processed in the drum control process routine S230 is output to the input / output processing circuit 80 without waiting for the results of other process routines.

  When the output processing to the input / output processing circuit 80 is completed, the process returns to step S200. On the other hand, when the medal is not bet at step S200 or when the start command is not generated at step S210, the process returns to step S200.

[Lottery processing routine]
In the lottery process routine, as shown in FIG. 17, the CPU 72 of the control device 70 first determines whether to win or not based on the number of medals bet, the current setting of the slot machine 10, the high / low probability of the small winning combination, etc. A random number table is selected (step S250). Here, the number of medals betted is any one of 1 to 3, and a random number table is selected such that the winning probability of the winning combination increases as the number of medals increases, for example, the probability when 3 bets are made A random number table is selected so as to be higher than three times the probability when one bet is placed.

  Further, the setting state of the slot machine 10 is any one of “setting 1” to “setting 6” set using a setting key (not shown), and the random number with the lowest winning probability of the winning combination in the case of “setting 1”. A table is selected, and when "setting 6", a random number table having the highest winning probability of the winning combination is selected. Furthermore, there are two types of small part probabilities, and the higher random number table is selected when the current payout rate is lower than a predetermined expected value, and the lower random number is selected when it is higher than a predetermined expected value. A table is selected.

  Subsequently, the random number table thus selected is illuminated for the random number latched from the random number counter when the start switch 52a is turned on this time, and a lottery for a winning combination is performed (step S260). Then, it is determined whether or not the winning combination has been won (step S270), and if not, the routine is ended. If the winning combination is won, the winning flag corresponding to the combination is set and the symbols are aligned. A valid line to be determined is determined (step S280), a slip table for loop stop control is determined, and this is stored in the slip table storage area of the RAM 76 (step S290). Here, the slip table is different from the symbol on the predetermined effective line at the timing when the stop button is pressed and the symbol to be stopped on the effective line (the symbol according to the hand etc. selected and determined in advance). In this case, it is a table that defines how much the reel should slide so as to stop the symbol to be stopped on a predetermined effective line.

[Roller control processing routine]
In the winding control process routine, as shown in FIG. 18, the CPU 72 of the control device 70 first performs a weight process (step S300). In this weight processing, processing is performed to wait (wait) without starting rotation of the turning drum in the current game until a predetermined time (for example, 4.1 seconds) elapses from the time when rotation of the turning drum starts in the previous game It is. For this reason, even if the player bets and operates the start lever 52, the left, middle and right turning cylinders L, M and R may not rotate immediately. Subsequently to this weight processing, the following rotation processing described later is performed (step S310), and the left, middle, and right rotation drums L, M, and R are subjected to the rotation processing so as to have drive characteristics as shown in FIG. Do.

  For the initial excitation phase that performs one-phase excitation or two-phase excitation, in this embodiment, 10 interruptions are performed as shown in FIG. Two-phase excitation (or two-phase excitation and one-phase excitation) is sequentially and alternately performed for a predetermined amount of interruption to accelerate. The output timings of the excitation signal data when the rotating drums L, M, R are rotating at a constant speed are synchronized with the timer interrupt processing timing as described above without waiting for processing other than the rotating drum control processing. It will be.

  When accelerating the rotating drum and rotating at a constant speed, the input / output processing circuit 80 is excited from now on without waiting for the processing result of another processing routine (processing routine such as step S220 and step S230) shown in FIG. The excitation data for the excitation phase to be output is output in synchronization with the minimum interrupt unit. The excitation data shown in FIG. 8 uses the data stored in the RAM 76.

  Subsequently, it is determined whether any one of the left, middle, and right center cylinder stop buttons 53, 54, and 55 is pressed to generate a stop command (step S320). When the stop command is not generated, it is determined in advance. It is determined whether or not a predetermined maximum rotation time (for example, 40 seconds) has elapsed (step S330), and when the maximum rotation time has not elapsed, the process returns to step S320 again, and when the maximum rotation time has elapsed The forced stop process for forcibly stopping all the rotating cylinders is switched to four-phase excitation immediately after the two-phase excitation (step S340). When the stop processing is performed, the symbol number and the value (symbol number and symbol offset value) of the counter 77 (see FIG. 3) for symbol offset are stored in the RAM 76 each time.

  On the other hand, when one of the left, middle and right stop cylinders 53, 54 and 55 is pressed in step S320 and a stop command is generated, a rotation stop processing is performed (step S350). In this spinning stop execution process, the spinning drum corresponding to the stop button pressed this time among the left, middle, and right spinning barrel stop buttons 53, 54, 55 is stopped. The rotation stop is performed by switching to four-phase excitation immediately after the two-phase excitation as described above. By switching to four-phase excitation, the stepping motors 71L, 71M, 71R corresponding to the stop buttons 53, 54, 55 become a kind of regenerative mode.

  When the winning symbol is set by winning the winning combination in the winning combination, referring to the slip table stored in the slip table storage area of the RAM 76, the winning combinations will be arranged on the predetermined effective line as much as possible. Make it For example, when the button "BELL" is pressed at the timing when the symbol "BELL" stops on the upper horizontal line when the player wins the role of arranging the symbol "BELL" on the lower horizontal line, it is rotated by two symbols. Slide to stop on the horizontal line. However, since the range which can be slid is predetermined (for example, four symbols at maximum), depending on the timing at which the stop button is pressed, the symbol "bell" may not stop on the lower horizontal line. When the winning flag is set in the above-mentioned forced stop processing, the same processing is performed.

  Subsequently, it is determined whether or not the current stop command is the first stop command, that is, whether or not the stop button has been pressed while all of the three turning cylinders are rotating (step S360). At this time, the slip table changing process is performed (step S370). In this slip table change process, for example, it is determined whether combination of the combination occurs when trying to align the combination on the winning line that has won, and when the combination of the combination does not occur, this process is skipped, the combination of the combination When occurs, the activated line which has been won is changed to another activated line, and it is changed to a slip table which is on the changed activated line, and this processing is exited.

  Here, with the combination of the roles, for example, when trying to align the symbol "bell" on the middle horizontal line, a plurality of roles are displayed as in the case where the symbol "cherry" appears on the lower horizontal line with the left turning drum. When it occurs simultaneously. In addition, although the symbol other than the symbol “cherry” is aligned when it is aligned on the predetermined effective line, the symbol “cherry” is three of the left turning drum L exposed from the exposed windows 31L, 31M, 31R. When one of the symbols is the symbol "cherry", a symbol is generated regardless of the symbols of the other rotating drums M and R. In addition, slip table change processing may be performed other than when avoiding combination of roles.

  On the other hand, when it is determined in step S360 that the current stop command is not the first stop command, whether or not it is the second stop command, that is, one of the three rotating cylinders L, M, R stops and the two rotating cylinders rotate. When it is determined that the stop button has been pressed (step S380), it is determined whether or not the second stop command is issued (step S390).

  In the stop determination processing, it is determined whether or not the two turnings are aligned with the bonus symbol (for example, "7" etc.) when the two turning drums stop. The control unit 84 generates sound effects and the like from the speakers 14 and 14 and then the process exits. In this stop eye determination processing, it may be determined whether or not another condition other than the alignment of two bonus symbols is satisfied, or an effect other than a sound effect may be performed.

  Then, after the forced stop process at step S340, after the slip table change process at step S370, or after the stop point determination process at step S390, or at step S380, the current stop command is not the second stop command. When it is determined, it is determined whether or not all the rotations of left, middle and right rotating cylinders L, M and R have stopped (step S400), and any one of left, middle and right rotating cylinders L, M and R When the rotation is not stopped, the process returns to step S320 again, and when all rotations of the left, middle and right turning cylinders L, M and R are stopped, the payout determination process is performed (step S410), and this routine is ended. In the payout determination process, it is determined whether or not the winning combinations are aligned on the active line, and when the winning combinations are not aligned on the active line, zero is set in the expected payout number storage area of the RAM 76, and the winning combinations are aligned on the active line. If yes, it is determined whether or not the combination matches the winning combination, and if it does not match, an error is displayed by the upper lamp 13 or the like, and zero is set in the planned number-of-payouts storage area. At the same time, the number of sheets to be paid out is stored with an upper limit of 15 sheets.

[Medal payout processing routine]
In the medal payout processing routine, as shown in FIG. 19, the CPU 72 of the control device 70 first counts the count value of the payout counter (also referred to as the number of payouts) and the numerical value stored in the planned number of payouts storage area (the planned number of payouts) If the number of payouts does not match the planned number of payouts, it is determined whether the credit switch 51a has been turned on by the operation of the credit button 51 (step S430). (Step S435) When turned on, it is determined whether the count value of the credit counter has reached the upper limit (Step S440), and when the upper limit has not been reached, the count value of the credit count and the number of payouts are incremented by one. (Step S450). As a result, the numbers of the credit number display unit 35 and the payout number display unit 37 are respectively incremented by one. On the other hand, when the credit switch 51a is off, or when the count value of the credit counter reaches the upper limit, the hopper drive motor 65 is driven to make medals from the hopper 86 via the medal payout opening 17 by the payout device 88. The number of payouts is incremented by one in accordance with the medal detection signal of the payout sensor 64 attached to the hopper 86 (step S470), while being dispensed to the tray 18 (step S460). As a result, the number of the payout amount display unit 37 is incremented by one. Then, after incrementing the number of payouts by 1 in step S450 or step S470, the process returns to step S430 again. If it is determined in step S430 that the number of payouts and the number of payouts match, the hopper drive motor 65 is stopped (step S480), and this routine is ended. The number of payouts and the number-of-payouts display portion 37 are reset when the start lever 52 is operated next time.

[Special state processing routine]
In this embodiment, as shown in FIG. 20, the special state processing routine (step S245) is included in the subroutine processing. The special state process will be described below, but prior to the description, the bonus game will be described.

  The regular bonus (hereinafter referred to as "RB") game is composed of 23 JAC games. The JAC game is a game in which only one bet is permitted, and is a game in which the probability that the JAC symbol (in this case, a replay symbol) is aligned on the effective line, that is, the probability of the JAC symbol being established is very high. When the JAC symbol is established in the JAC game, the maximum number (15 in this case) of medals is paid out. Then, when the JAC symbol is established eight times, the RB game is ended even before the JAC game reaches twelve times. On the other hand, the big bonus (hereinafter referred to as "BB") game is composed of 30 small role games and 3 JAC ins. A small role game is a game in which a small role is hit with a high probability (a symbol “Bell” etc. is aligned on the active line), and a JAC in means to enter 12 JAC games, a small role game When the JAC pattern is aligned on the effective line, JAC in is established. The JAC game is similar to the RB game. Also, when the third JAC-in JAC game ends, the BB game ends even before the small-combination game reaches 30 times, and when the 30 small-combination games end, before the JAC-in reaches three times Even if there is a BB game is over.

  Now, in the special state process, as shown in FIG. 20, the CPU 72 of the control device 70 first determines whether the gaming state is the bonus state (step S500), and when the gaming state is not the bonus state, the bonus symbol Replay symbol determination processing is performed (step S524). In this bonus symbol / replay symbol determination process, as shown in FIG. 21, first, it is determined whether or not the RB is won by the lottery for the winning combination and the RB winning flag is set (step S700). It is determined whether the RB symbol (for example, symbol "BAR") is aligned in the current effective line (step S710). If the RB symbol is not aligned, an irregular flag is set (step S730), and this process is ended. Do. The irregular flag is a flag for instructing to perform an irregular operation when starting to rotate the toroid next time. On the other hand, when the RB symbol is aligned on the effective line this time, the RB winning flag and the irregular flag are reset and the RB setting flag is set to set the RB state which is one kind of bonus state, and the RB game of (Table 1). The initialization process is executed (step S720), and this routine is ended.

  If the RB winning flag is not set in step S700, it is determined whether the BB winning flag is set by winning the BB in the winning combination lottery (step S740). It is determined whether or not the symbol (for example, symbol "7") is aligned (step S750), and if the BB symbol is not aligned, the irregular flag is set (step S730), and this process is ended. On the other hand, when the BB symbol is aligned on the effective line this time, the BB winning flag and the irregular flag are reset, and the BB setting flag is set to set the BB state which is a kind of bonus state. The process is executed (step S760), and this routine ends.

  When the BB winning flag is not set in step S740, the replay symbol determination process is executed (step S770). That is, it is determined whether the replay winning is won by the lottery of the role, the replay winning flag is set, and the replay symbol is aligned on the activated line, and this routine is ended when a negative decision is made, and the replay is decided when a negative decision is made. The winning flag is set to end the routine in the replay state. In the replay state, the number betted last time in step S200 of the main flow is forcibly betted, but the medals of the player are not consumed.

  In Table 1 below, the remaining small combination game counter represents the number of remaining small combination games (also referred to as the number of remaining small combination games), and the remaining JAC in counter is the number of remaining JAC in available times (also the number of remaining JAC ins) Represents the number of remaining JAC symbols that can be established (also referred to as the number of remaining JACs), and the remaining JAC game counter represents the number of remaining JAC games (also referred to as the number of remaining JAC games). . The number of remaining small winning combination games, the number of remaining JAC ins, the number of remaining JACs established, and the number of remaining JAC games are appropriately displayed on the number-of-games display section 36. By the way, when the small winning combination or the replay winning flag is set by winning the small winning combination or the replay in the lottery of the winning combination, these winning flags will not be aligned on the effective line of the small winning combination symbol or the replay symbol in the game. Is reset, but when the RB or BB winning flag is set by winning RB or BB in the lottery for the role, even if the RB symbol or BB symbol is not aligned on the effective line in the game The winning flag of will be carried over to the next time.

さて、図２０に戻り、ステップＳ５００で遊技状態がボーナス状態のときにはそのボーナス状態がＲＢ状態か否かを判定し（ステップＳ５０２）、ＲＢ状態でないときつまりＢＢゲームの小役ゲーム中のときにはＪＡＣ図柄が有効ライン上に揃ったか否かを判定し（ステップＳ５０４）、ＪＡＣ図柄が有効ライン上に揃ったときにはＲＢ状態になる（ＢＢ状態と併存）と共に（表１）のＢＢ中ＲＢゲーム初期設定処理を行い（ステップＳ５０６）、このルーチンを終了する。一方、ステップＳ５０４でＪＡＣ図柄が有効ライン上に揃わなかったときには、ＢＢ状態で小役ゲームが１ゲーム消化されたことになるため、残小役ゲーム数を１ディクリメントし（ステップＳ５０８）、その残小役ゲーム数がゼロになったか否かを判定し（ステップＳ５１０）、ゼロでないときにはこのルーチンを終了し、ゼロのときには各種設定フラグやＢＢ設定フラグや各種カウンタなどを適宜リセットしたりエンディング処理を行ったりする特別遊技状態終了処理を行い（ステップＳ５２６）、このルーチンを終了する。

Now, returning to FIG. 20, it is determined in step S500 whether the bonus state is the RB state if the gaming state is the bonus state (step S502), and if it is not the RB state, that is, the small winning combination game of the BB game JAC symbol It is judged whether or not it is on the effective line (step S504), and when the JAC symbol is on the effective line, the RB state (coexist with the BB state) is established and the RB game initialization processing in BB (Table 1) is performed. (Step S506), and this routine ends. On the other hand, when the JAC symbol is not aligned on the effective line in step S504, since the small combination game is digested by one game in the BB state, the number of remaining small combination games is decremented by 1 (step S508). It is determined whether the number of remaining small winning combination games has become zero (step S510). If it is not zero, this routine is ended. If it is zero, various setting flags, BB setting flags, various counters, etc. are appropriately reset or ending processing And the special game state end processing is performed (step S526), and this routine is ended.

  When the gaming state is the RB state in step S502, it is determined whether or not the JAC symbol is aligned on the activated line (step S512), and when the JAC symbol is aligned on the activated line, the remaining JAC formation number is decremented by 1 ( Step S514). Thereafter, or if the JAC symbols are not aligned on the effective line in step S512, the number of remaining JAC games is decremented by 1 (step S516) since each JAC game has been consumed. Subsequently, it is determined whether or not either the remaining JAC formation number or the remaining JAC game number has become zero (step S518), and when none of them has become zero, that is, the JAC symbol is still established eight times. Also, if the JAC game has not been consumed 12 times, this routine ends.

  On the other hand, when one of the JAC symbols has been established eight times or when the JAC game has been digested 12 times, one of the JAC ins has been digested, so the remaining JAC ins count is 1 di Then, it is determined whether or not the remaining JAC-in count is zero (step S522), and when it is zero, the special game state end processing described above is performed (step S526), and this routine is ended. . By the way, if the RB symbols are aligned on the effective line and the RB winning flag is set after winning the RB in the lottery for the role, the initial number of remaining JAC ins is 1 (see Table 1), so in step S520 It becomes zero and a positive determination is always made in step S522, and the RB setting flag is reset in the special game state end process.

  On the other hand, when the remaining JAC-in count is not zero in step S522, that is, when JAC-in has not been digested three times in the BB state, the RB state end processing for resetting the RB setting flag is performed (step S523). Since one small game is consumed when the game is in, the number of remaining small combination games is decremented by one (step S508), and it is determined whether the number of remaining small combination games has become zero (step) When the number of remaining small winning combination games is zero, the special game state ending process described above is performed (step S526), and this routine is ended. On the other hand, when the number of remaining small winning combination games is not zero, this routine is ended because the small winning combination games in the BB state have not reached 30 and the JAC in has not reached 3 times. At this time, the RB state is eliminated but the BB state is continued.

  As described above, according to the present invention, in the gaming machine which plays a game by stopping the rotating drum after rotating the plurality of rotating drums, the rotational position detecting means for detecting the rotational position of the rotating drum drive motor is provided. According to the output of the rotational position detecting means, the excitation phase of the rotating drum drive motor at the time of starting the rotating drum is controlled.

  According to this, since the excitation phase (initial excitation phase) of the drive motor at the time of rotation start is determined based on the excitation phase at the time of stop or rotation start of the drive motor, continuity of the excitation phase at the time of rotation start is Since it is secured and the deviation from the original initial excitation phase is eliminated, it is possible to ensure the stability of the drive motor at the start of rotation, in other words, the stability of the rotating drum at the time of start of rotation. By securing the stability of the rotation start, concentration on the game can be increased, and the player's interest can be enhanced.

  The amount of rotation at least from the time the brake is applied to the spinning drum drive motor to the time at which the rotation of the drive motor actually stops is equivalent to the amount of sliding motion, and the initial excitation phase is determined from this amount of sliding motion. Moreover, since the sliding amount can be obtained including the difference between the stop rotational position when the brake is applied and the start rotational position, the sliding amount detecting means functioning as the rotational position detecting means excites the excitation phase at the starting rotational position. Can be detected, and can be dealt with even when the rotor is intentionally turned. The sliding amount detection means can be attached to the spinning drum drive motor to detect the rotational state of the spinning drum simply.

  The excitation phase of the drive motor at the start of rotation of the rotary drum is controlled by the detection output at the time of rotation stop obtained from the sliding amount detecting means. Since the detection output of the sliding amount detection means at the time of rotation stop of the rotating drum corresponds to the excitation phase at the time of rotation stop, setting the initial excitation phase of the drive motor based on this detection output The drive motor can be started based on the excitation phase, whereby stable initial rotation of the drive motor can be realized, and out-of-step or unstable initial rotation can be swept out.

  The detection output at the start of rotation obtained from the sliding amount detection means, when controlling the excitation phase at the start of rotation of the rotary drum, even when the stop rotational position of the rotor and the rotational position at start are different. Since the excitation phase at the starting rotational position can be detected, even when the rotor of the drive motor is intentionally turned, the drive motor can be initially driven by the initial excitation phase in which the continuity of the excitation phase is secured.

  The sliding amount detecting means can use a rotary encoder. By using the rotary encoder, it is possible to sequentially detect the amount of sliding of the drive motor at the time of rotation stop or rotation start, so it is easy to store the next initial excitation phase only by storing the excitation phase corresponding to the amount of slide at the rotation stop. And it can be determined accurately.

  From the excitation phase corresponding to the output of the sliding amount detection means when the drive motor is braked and the sliding amount corresponding to the sliding amount detection output when the motor slips by a predetermined step angle number, the initial excitation phase Is set. According to this, from the sliding amount output when the brake is applied and the sliding amount output when the rotor is stopped, the sliding amount of the rotor from when the brake is applied is detected, and the step angle corresponding to the sliding amount The next excitation phase of the excitation phase advanced by a number can be set as the initial excitation phase. Since the continuity of the excitation phase is secured by this, stable starting rotation can be realized.

  The excitation phase at the time of stop of the drive motor is calculated from the sliding amount detection output at the time of rotation stop of the drive motor, and the initial excitation phase at the time of next motor drive can be set based on the calculated excitation phase. The relationship between the detection output and the excitation phase at the time of rotation stop can be grasped from the relationship between the step angle of the drive motor and the rotary encoder output and the relationship between the excitation order of the excitation phase, and as a result, the initial excitation phase can be set easily.

  Since the stop excitation phase is known based on the sliding amount detection output at the time of rotation stop, as a result of the rotor being turned manually, even if the start rotation position differs from the stop rotation position at which braking was actually applied, It can secure the continuity of the phases. In particular, when using an absolute encoder as a rotary encoder, the excitation phase based on the sliding amount both when the rotor is intentionally turned after stopping the rotor and when the power of the drive motor is turned on. The excitation phase in the rotational position of the hour can be known.

  The sliding amount detecting means may be arranged with a plurality of sliding amount detecting sensors along the rotational direction of the rotating drum. Even when the plurality of sliding amount detection sensors are appropriately arranged along the rotation direction of the rotating drum with different radii, the outputs from the plurality of sliding amount detection sensors are used to stop the rotation of the drive motor. Since the amount of sliding can be detected, stable rotational start can be realized.

  The drive motor is a two-phase stepping motor adopting a one-two phase excitation system. Since the drive motor is a stepping motor, high torque and high stop accuracy can be obtained. In addition to this, since it is a 1-2 phase excitation system, eight types of excitation sequences (excitation order) are determined by the combination of 2 types of 1 phase excitation and 2 phase excitation, and it is easy to identify the excitation phase when the rotor rotation is stopped. become.

  In the acceleration period until the rotating drum reaches constant speed rotation, the excitation period of one-phase excitation and two-phase excitation is gradually shortened. Since the interruption timing (application timing) of the excitation signal applied to each excitation phase is controlled so as to be gradually shortened so as to accelerate to a constant speed rotation while absorbing the rotational vibration of the drive motor at the time of rotational start as much as possible. In addition to eliminating the step out due to the omission of the excitation signal, it is possible to avoid the instability of the rotation due to the rotational shake. As a result, it is possible to provide a gaming machine capable of immersing in a game without diverting the player's interest.

  At the end of the acceleration period, there is a 1-2 phase excitation in which one phase excitation and two phase excitation are sequentially switched at a minimum interrupt interval, and transition to constant speed rotation is made. By setting the end of the acceleration period to 1-2 phase excitation in which 1 phase excitation and 2 phase excitation are sequentially switched at the minimum interrupt interval, smooth transition to constant speed rotation can be achieved.

  When the drum drive process is set as part of the timer interrupt process, an excitation signal for the drive motor is output to the drive motor without waiting for the completion of the process other than the drum drive process. According to this, even if there are many processes other than the rotating drum driving process in the periodic interrupt process, the minimum interrupt cycle is performed without waiting for the processing time required for the processes other than the rotating drum driving process. The excitation signal can be output to the input / output port in synchronization with Therefore, since the drive motor is always excited in synchronization with this interrupt cycle, very stable rotational drive can be realized.

  The gaming machine described above is a pachinko machine. A pachinko machine is provided with an operating handle as its basic configuration, and in response to the operation of the operating handle, the gaming ball is fired to a predetermined gaming area, and the gaming ball is paid to an operating opening arranged at a predetermined position in the gaming area. The variation display of the symbols on the display device is started with the requirement to be set, and the winning opening arranged at a predetermined position in the game area is in a predetermined mode during the occurrence of the special game state. It is a gaming machine in which a game ball can be won by being opened at the time of opening, and a valuable value corresponding to the number of winnings is given.

  The valuable value may be reduced as a prize ball, or card-like recording media such as a magnetic card may be used to write valuable information corresponding to the valuable value. In a pachinko machine, a special gaming state (big hit state) which is a state advantageous to a player who can obtain at least a large number of game balls, and a normal gaming state which is a state disadvantageous to a player consuming the game balls There are various game modes.

  The above-described gaming machine is a slot machine. The slot machine has, as its basic configuration, a display device for variably displaying a symbol row consisting of a plurality of symbols for identifying the gaming state according to the gaming state, and for displaying the symbols finalized, for operation of the operation lever The variation of the symbol is started as a result, and the variation of the symbol is made to stop by the operation of the stop button or when the predetermined time elapses, and the final symbol at the time of stop is the specific symbol Is a gaming machine provided with special game state generation means for generating a special game state advantageous to the player as a necessary condition.

  In this gaming machine, a special gaming state (big hit state) which is a state advantageous to a player who can obtain at least a large number of game media, and a normal gaming state which is a state disadvantageous to a player consuming game media. There are various game modes. As a game medium used in this type game machine, coins, medals and the like can be mentioned as typical examples.

  The above-described gaming machine is a gaming machine in which a pachinko machine and a slot machine are fused. Such a gaming machine (multi-function machine) has, as its basic configuration, a display device for displaying a symbol in a fixed manner after variably displaying a symbol row consisting of a plurality of identification information for identifying the gaming state according to the gaming state. Furthermore, the variation of the symbol is started due to the operation of the starting operation means such as the operation lever, and the symbol is caused by the operation of the stop operation means such as the stop button or by the lapse of a predetermined time Is provided with special game state generation means for generating a special game state advantageous to the player on the condition that the fixed symbol at the time of the stop is the specific symbol, and the game ball is used as a game medium The gaming machine is configured to require a predetermined number of gaming balls to start changing the identification information, and to pay out a large number of gaming balls when the special gaming state occurs.

  In this gaming machine, a special gaming state (big hit state) which is an advantageous state for a player who can obtain at least a large number of gaming balls, and a normal gaming state which is a disadvantageous state for a player who consumes gaming balls There are various game modes.

  The present invention is not limited to the gaming machine of the above-described embodiment, and it goes without saying that the present invention can be embodied in various forms within the technical scope of the present invention.

  For example, the number of rotating drums may be two or more, and the display device including the rotating drum may be vertical or horizontal. It is not necessary to align the rotation directions of the rotating drums in the same direction, and the present invention can be applied to gaming machines having rotating drums that rotate in reverse directions. The present invention may be applied to any slot machine, not limited to so-called A-type slot machines, such as B-type, C-type, composite type of A-type and C-type, composite type of B-type and C-type, Furthermore, the present invention may be applied to a complex machine in which a slot machine and a pachinko machine are combined, and it is apparent that the same operation and effect as the above-described embodiment can be obtained in any case.

  DESCRIPTION OF REFERENCE NUMERALS 10 slot machine 11 body 12 front door 30 game panel 31 L, 31 M 31 R exposed window 40 cylindrical frame member 41 boss portion 42 boss reinforcing plate 43 motor plate 44 ... rotating body index photo sensor, 45 ... sensor cut van, 47 ... seal, 51 ... credit button, 52 ... start lever, 53 ... left rotating body stop button, 54 ... middle rotating body stop button, 55 ... right rotating body For the stop button, 70: control device, 71L: stepping motor for left drum, 71M: stepping motor for middle drum, 71R: stepping motor for right drum, 72: CPU, L: left drum, M: middle Body, R: Right rotating body, 73: Rotary encoder, 75: Arithmetic processing circuit.

Claims (1)

A rotating body with a pattern,
A stepping motor for rotating the orbiting body;
Drive control means for driving and controlling the stepping motor;
A gaming machine for playing a game by stopping the rotating body after rotating the rotating body,
The drive control means
Stop control means for executing stop control to stop the rotation of the orbiting body;
Rotation amount detection means for detecting, as rotation amount information, a rotation amount of the orbiting body from when the stop control is executed by the stop control means to when the rotation of the orbiting body is stopped;
The rotation control according to the rotation start position is executed, and the rotation of the orbiting body is advanced by the rotation amount information from the rotation position of the orbiting body when the stop control is executed by the stop control means. Rotation control means for executing rotation control to start rotation of the orbiting body with the position as the rotation start position;
Equipped with
The process of driving and controlling the stepping motor by the drive control means is executed as part of a timer interrupt process which is periodically executed while interrupting other processes.
The drive control means outputs an excitation signal for driving and controlling the stepping motor without waiting for the end of a process different from the process for driving and controlling the timer interrupt process as the process for driving and controlling the stepping motor. And
The rotation control means
First means for specifying an initial excitation phase at the start of the next rotation of the orbiting body based on the excitation phase when the stop control is executed by the stop control means;
From the initial excitation phase specified by the first means, the excitation phase to be excited is advanced by the step angle number corresponding to the rotation amount information detected by the rotation amount detection means to set the initial excitation phase A second means for correcting and deriving a corrected excitation phase;
Third means for outputting the excitation signal to the corrected excitation phase derived by the second means at the start of the next rotation;
A game machine characterized by comprising:

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