JPH0458968A - Rotation display device for game machine - Google Patents

Abstract

PURPOSE:To obtain the rotation display device for a game machine which can stop a rotating body in an exact position extending over a long period by providing a part to be detected of a reference position of a rotating state on the rotation side of a stepping motor, and providing a reference position detector on the fixed side. CONSTITUTION:A stepping motor 82a is constituted of a stator forming fitting plate 83 for constituting the fixed side, a center stator forming cylinder 91 and a stator forming cover plate 95, and a rotor 97 for constituting the rotation side, and constitutes two sets of stepping motors of a unipolar driving type, and stepped by (theta/4) degree each when a driving pulse is sent and stepped by two degrees each at every driving pulse. Accordingly, by sending a driving signal consisting of four excitation patterns to the stepping motor 82a, a rotary drum 65a can be rotated at a prescribed speed of revolution, and it is set so that the speed of revolution becomes smaller as it goes to the right side from the left side. As a result, a relative position of the part to be detected and a reference position detector is not varied extending over a long period, a reference position can be detected exactly extending over a long period, and the rotating body can be stopped in an exact position.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a rotating display device for a gaming machine, which is configured to rotate a rotating body on which a plurality of pieces of identification information are formed by a stepping motor. It is.

[Prior Art] Conventionally, as a gaming machine equipped with a rotating display device configured to rotate a rotating body on which a plurality of pieces of identification information are formed by a stepping motor, there have been used, for example, a throttle machine, a pachinko gaming machine, etc. is offered to the market. In order to determine the identification information (also called a pattern) drawn on the surface of the rotating body of these rotating display devices and displayed when the rotation is stopped, for example, Japanese Patent Application Laid-Open No. 63-255081 As shown in , a reflective tape (detection area) is provided at one place on the edge of the drum surface of the rotating drum as a rotating body, and a reflective photo sensor (reference) is placed on the back side of the rotating drum opposite the edge of the drum surface. The structure was equipped with a position detector).

[Problems to be Solved by the Invention] Incidentally, the rotating drum provided in a game machine is generally molded from synthetic resin, but in this case, the drum surface of the rotating drum is exposed to driving heat and molding during long-term use. In such cases, the relative position between the detected part and the reference position detector shifts, making it impossible to accurately detect the reference position of the stepping motor, and the rotating body may become deformed due to residual stress. There was a problem that it could not be stopped at an accurate position.

This invention was made in view of the above-mentioned problems, and its purpose is to provide a rotating display device for a gaming machine that can stop a rotating body at an accurate position for a long period of time. be.

[Means for Solving the Problems] In order to achieve the above-mentioned object, a rotating display device for a gaming machine according to the present invention has the following features: A rotating body on which a plurality of pieces of identification information are formed on the surface thereof is driven to rotate by a stepping motor. The stepping motor is provided with a detected part for detecting a reference position of the rotation state at an appropriate position on the rotation side of the stepping motor,
The device is characterized in that a reference position detector for detecting the detected portion is provided on the fixed side thereof.

[Function] Since the detected part and the reference position detector for specifying the identification information formed on the rotating body are provided on the rotating side and the fixed side of the stepping motor, respectively, the detected part and the reference position detector can be connected to each other. The relative position of the rotating body does not change over a long period of time, so the reference position can be detected accurately over a long period of time, and the rotating body can be stopped at an accurate position.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.

Configuration of Gaming Machine First, in the embodiment, a pachinko gaming machine will be exemplified as an example of a gaming machine to which a rotary display device is applied. Now, with reference to FIG. 11, the configuration of the game board 1 of the pachinko game machine will be explained. FIG. 11 is an enlarged partial front view of the game board 1. In the figure, a rotating display device 20 having a plurality of rotating drums 65a to 65c is provided approximately at the center of the surface of the game board 1, and a variable winning ball device 2 having a winning area 4 below the rotating display device 20 is provided. It is provided.

The variable winning ball device 2 has a mounting board 3 that is attached to the game board 1, and a rectangular winning area 4 is provided on the top of the mounting board 3.

This winning area 4 is covered by an opening/closing plate 5 which is pivotally supported on both sides of the lower end and can be freely opened and closed in a direction perpendicular to the mounting board 3. The opening/closing plate 5 is controlled to open and close by a solenoid 6 (not shown), and while it is open, it receives the balls falling on the surface of the game board 1 and guides them to the winning area 4 to win a prize. In addition, the inside of the winning area 4 is divided into three parts,
A specific winning lower is set in the center, and normal winning openings 8a and 8b are set on the left and right sides. The specific winning lower is equipped with a winning ball detector 9 (sometimes referred to as a V sensor), and a winning ball detector 10 that detects all the balls that have entered the winning area 4.
A count detector 10 is also provided. The number of balls hit by this 10 count detector 10 is normally displayed on a winning number display 10a provided on the rear wall of the winning opening 8b.

The variable prize winning ball device 2 configured as described above operates as follows. That is, when the combination of identification information of the rotary drums 65a to 65C of the rotary display device 20 becomes a predetermined display mode, a specific gaming state is entered.

In this specific gaming state, the opening/closing plate 5 of the variable winning ball device 2 is set to open for a predetermined period of time (for example, until 20 seconds pass or until 10 winnings occur), and It is designed to catch balls falling on the surface of the game board 1 while playing.

Then, when a prize is won in the specific prize winning lower that is provided in the winning area 4, the above-mentioned open state is repeated again, and the opened state can be repeated up to 10 times each time a winning occurs in the specific winning lower. There is.

Below the variable winning ball device 2, the rotating drums 65a-
Starting prize openings 11a to 11C that allow rotation of 65C are provided. When a hit ball wins in the starting winning hole 11a provided in the middle among these starting winning holes 11a to 11C, the number of prize balls paid out (for example, 7) will be lower than the number of prize balls won in other winning areas. The number of prize balls is set to be smaller than the number of prize balls (for example, 13) that will be paid out at that time. In addition, the starting winning holes 11a to 11C are integrally provided with starting switches 12a to 12c, so as to detect the winning balls in the starting winning holes 11a to ttC and send a detection signal to the microcomputer 110, which will be described later. It has become. Note that a stop switch 13 (not shown; however, shown in the block diagram of FIG. 7) that can be operated by the player to stop the rotation of the rotating drums 65a to 65c is provided. Even if this stop switch 13 is not operated, the rotating drums 65a to 65c automatically stop after a certain period of time (for example, 5 seconds) has elapsed since the start of rotation. In this case, only the latter automatic stop is sufficient.

Further, on the surface of the game board 1, there are normal winning openings 14a14b, 15a on the left and right sides and the lower side of the rotary display device 20.
, 15b are provided. Further, a normal winning opening 23 is also provided at the top of the rotary display device 20.

Further, on the surface of the game board 1, there are windmills 16a, 16b, 17a, 17b that change the speed and direction of the falling balls.
and a large number of obstacle nails (no reference numerals) are provided, as well as game effect lamps 18a and 18b that light up or flash to notify the player when the specific game state is over.
is provided. These game effect lamps 18a, 18b
The same effect is achieved by the winning openings 15a and 15b with lamps provided on the lower left and right sides of the entry winning openings, and the windmills 16a with lamps disposed on the upper left and right of the windmills.
, 16b. Note that these lamps are used not only when a specific game state is entered, but also when the rotating drums 65a to
When the 65c etc. are rotating, or when a prize is started, they light up or blink in different ways to liven up the atmosphere of the game. Furthermore, at the lowest part of the surface of the game board 1 (below the starting prize opening 11a), there is an out opening (not shown) through which the balls that have not landed in any of the winning areas described above are guided to the rear of the gaming board 1. ) is provided.

Rotating Display Device Next, with reference to FIGS. 1 to 5C, the configuration of the rotating display device 20, which constitutes the main part of this embodiment, will be explained.

The rotary display device 20 is divided into a mounting board 21 that is attached to the front surface of the game board 1, and a box body 50 that houses a drive mechanism part that is attached to the back surface of the game board 1. First, the configuration of the mounting board 21 attached to the surface of the game board 1 will be explained with reference mainly to FIGS. 11 and 4. Note that other drawings will be cited whenever necessary for explanation.

An upper decorative plate 22 is protruded from the upper part of the mounting board 21.
A normal prize opening 23 is formed at the upper center of the upper decorative plate 22. A continuation count display 24 for displaying the continuation count of the opening/closing plate 5 of the variable winning ball device 2 is provided on the front surface of the upper decorative plate 22, and on the left and right of the continuation count display 24, the starting winning opening 11a is provided. -llc are provided with start-up winning memory display devices 25a to 25d that inform that the number of winning balls has been stored up to a maximum of four. Furthermore, decorative lamps 26 a to 26 d are built in inside the upper decorative board 22 and on the left and right sides of the normal winning opening 23 to decorate the upper part of the rotary display device 20 .

The above-mentioned continuation number display 24, starting winning memory display 25
a to 25d and decorative lamps 26a to 26d are formed on one wiring board 27 and fixed to the mounting board 21 from the back surface. Further, a square display window 28 is provided in the lower part of the mounting board 21, and a transparent lens cover 29 is attached to the display window 28 in an arc shape. This lens cover 29 is selected to have a size that allows three pieces of identification information (designs) drawn on the surface of the rotating drums 65a to 65c to be seen, and is formed into a lens shape so that the identification information appears larger. .

Furthermore, fitting tubes 30a, 30b are formed on the mounting board 21 so as to protrude rearward, and these fitting tubes 30a, 30b
A fitting protrusion 32 of the light source mounting frame 31 on the drive unit side will be described later in .
a and 32b are inserted, and the mounting board 21 and the box body 5 are
The mutual positional relationship with 0 is precisely defined.

On the other hand, the structure of the box body 50 that houses the drive mechanism part attached to the back side of the game board 1 will be explained mainly with reference to FIG. 4. In the front of the box body 50, there are
The front support frame 42 and the light source mounting frame 31 are fixed. Therefore, first, the light source mounting frame 31 will be explained. The light source mounting frame 31 is formed in a square thin plate shape with an opening in the center.
, 30b are provided in a protruding manner. Furthermore, fitting grooves 3.3a to 33c and 34a to 34c are formed at appropriate intervals above and below the central opening. These fitting grooves 33a to 33c, 34a to 34
The light emitting source substrates 35a to 35c are attached to the panel c from the rear. The light emitting source substrates 35a to 35c are formed in an arc shape, and each of the light emitting source substrates 35a to 3
5C, there are three sets of light emitting sources 36 in the vertical direction.
A to 36c, 37a to 37c, and 38a to 38C are provided. The set of light emitting sources illuminates one side of an information board member 74 provided on the rotating drums 65a to 65c, which will be described in detail later. Therefore, three sets of light sources 36a are provided on one light source substrate (for example, 35a).

37a and 38a illuminate three information board members 74 located in front of one rotating drum 65a. Also,
The light emitting source boards 35a to 35c include light emitting sources 36a to 36c.
, 37a to 37c, and 38a to 38c are connected with wirings 39a to 39C for supplying electricity.
Connectors 40a to 40c are provided at the end of 39c. Note that the wirings 39a to 39c are connected to terminals 60a to 60c provided on the relay board 59 after passing through wiring through holes 54a to 54c, which will be described later. In addition, in the case of this embodiment, the light emitting source is a light emitting LED.
is used.

At approximately four corners of the light source mounting frame 31 configured as described above, there are mounting holes 41 that are fixed to the front support frame 42 with screws 44.
is drilled.

On the other hand, like the light source mounting frame 31, the front support frame 42 is also formed in a square plate shape with an open center, and is formed to be slightly wider than the light source mounting frame 31.

Mounting holes 43 are also formed in the four corners of the front surface of the front support frame 42, and by making these mounting holes 43 correspond to the mounting holes 41 and screwing them with screws 44, the light source mounting frame 31 and the front support frame 42 are connected. are integrally constituted. Further, a square opening 45 facing the rotating drums 65a to 65c is provided in the center of the front support frame 42, and the opening 45 is
Partition pieces 46a and 46b are erected to partition into two. The partition pieces 46a and 46b are connected to the light emitting source substrates 35a to 35c.
It comes into contact with the rear end, and when the front support frame 42 and the light source mounting frame 31 are integrated, the light source boards 35a to 3
This prevents 5c from falling off backwards. Additionally, above and below the rear end of the opening 45, rotating drum mechanisms 64a to 64a to be described later are provided.
Positioning grooves 47a to 47c, 4 for locking the upper and lower front sides of motor fixing plates 78a to 78C that constitute motor fixing plate 64c.
Attachment tubes 49 are formed at the top and bottom of the front support frame 42 (however, the bottom is not shown), and are connected to the box body 50 with screws 49a.

The box main body 50 is formed in a box shape with an open front,
Attachment holes 51 for fixing to the front support frame 42 are bored at the front upper and lower sides, and a rotating drum 65a is provided inside the attachment holes 51 for fixing to the front support frame 42.
~65c is accommodated. rotating drum 6
5a to 65c are respectively rotary drum mechanisms 64a.
It is unitized as ~64c and can be easily assembled into a box body 5.
It is set to be stored at 0. The rotating drum mechanisms 64a to 64c will be described in detail later. by the way,
Positioning projections 79a to 7 of motor fixing plates 78a to 78c, which will be described in detail later, are provided on the top and bottom of the front opening of the box body 50 to hold the rotating drum mechanisms 64a to 64c in predetermined positions.
Positioning groove 52a into which 9c, 80a to 80c are inserted
-52c, 53a-53c are formed, and wiring through holes 54a-54c are formed on the top and bottom of the rear wall of the box body 50.
55a to 55c are formed. The wiring through holes 54a to 54c formed above are provided with the light emitting source substrates 35a to 35c.
Wirings 39a to 39c extending from 35c are passed through, and collective wirings 106a to 106C extending from stepping motors 82a to 82c, which will be described later, are passed through wiring through holes 55a to 55c formed below.

Further, on the back side of the box body 50, a motor fixing plate 78 is provided.
Mounting pieces 81a to 81 formed above and below the rear ends of a to 78c
c and the heat sink plate 5 with screws through the rear wall of the box body 5o.
7 are attached almost closely together, and the heat generated by the stepping motors 82a to 82c is transferred to the motor fixing plate 78a.
~78c, the screws 58 are conducted to transmit heat to the heat sink 57 disposed outside the box body 5o, thereby radiating heat. Further, mounting bosses 56 are protruded from the four corners of the rear surface of the box body 5o, and a relay board 59 is provided on the mounting bosses 56.
Terminals 60a to 60c are fixed to this relay board 59 by screws 63.

Terminals 61a to 61c and 62 are provided, and terminals 60a to 61c are provided.
Connectors 4°a to 40c of the wirings 39a to 39c extending from the light emitting source boards 35a to 35C are connected to the terminal 60c, and the stepping motor 82 is connected to the terminals 61a to 61c.
Connectors 107a to 107c of collective wirings 106a to 106c extending from a to 82c are connected. Furthermore, wiring (not shown) for connection to a microcomputer 110, which will be described later, is connected to the terminal 62.

The rotating drum mechanisms 64a to 64c housed in the box body 5o described above are one rotating drum mechanism 64 in FIG.
As shown in Fig. a (the other two rotation 1 to ram mechanisms 64b and 64c have exactly the same configuration), there are rotating drums 65a to 65c with a plurality of identification information drawn on their outer peripheral surfaces, and rotating drums 65a to 65c. Stepping motors 82a to 82c that rotate 65c, and stepping motors 82a to 82c.
It is composed of motor fixing plates 78a to 78C for fixing the motor 82c. Hereinafter, each configuration will be explained by taking up one rotating drum mechanism 64a.

First, as shown in FIGS. 4 and 5A, the rotating drum 65a includes a cylindrical body 66 constituting the drum body, and an information plate member attached to the outer peripheral surface of the cylindrical body 66 and on which identification information is formed. 74. The cylindrical main body 66 has a cylindrical outer periphery, a "+"-shaped spoke 67 is formed from the cylindrical portion toward the center, and a shaft fitting hole 68 is formed in the center of the spoke 67. Moreover, they are integrally formed from synthetic resin. The shaft fitting hole 68 is formed into a 01-shaped cross section, and an output shaft 100 (described later) of the stepping motor 82a is fitted therein in a predetermined positional relationship. A reinforcing rib 69.7o is provided at the connecting portion of the spoke 67 and the outer connecting portion of the shaft fitting hole 68.
is formed to increase the rigidity of the cylindrical main body 66 made of synthetic resin. In addition, partition locking pieces 71 are provided on the cylindrical portion of the cylindrical body 66 in a radial manner protruding outward, and approximately in the middle of the adjacent partition locking pieces 71 and on one side edge of the cylindrical portion. A locking piece 72 is formed, and a light shielding plate portion 73 is formed between adjacent partition locking pieces 71 and along the other side edge of the cylindrical portion. Partition locking piece 71, locking piece 72, and light shielding plate portion 7
3, as shown in FIGS. 5A to 5C, an information plate member 74 on which one piece of identification information is formed is detachably attached to the cylindrical main body 66. That is, the upper end of the partition locking piece 71 has an inverted triangular shape as shown in FIG. 5A, and the tip of the locking piece 72 has a locking claw shape as shown in FIG. 5C. ing. Therefore, by inserting the information plate member 74 into the space between the partition locking pieces 71 from the side opposite to the light shielding plate part 73 and locking it with the locking pieces 72, the information plate member 74 can be inserted into the cylindrical body. Can be installed on 66,
Further, when removing the information board member 74, it can be easily removed by pulling out the information board member 74 while pushing down the locking piece 72.

By the way, as shown in FIGS. 5A to 5C, the information board member 74 is made of transparent synthetic resin having a predetermined thickness, and has a large number of small openings 75 engraved on its back surface.

The small recess 75 allows the light emitting source 3 to be inserted from the side of the information board member 74.
When irradiated by 6a to 36c, 37a to 37c, and 38a to 38c, the irradiated light is scattered. However, this edge portion 75 is not carved randomly, but is formed so as to surround the outline of a predetermined pattern as identification information when viewed from the front of the information board member 74. be. For example, as shown in FIG. 5B, when the identification information is the number "7", a small recess 75 is carved to surround the outer contour of "7". Note that a decorative seal 76 is provided between the information board member 74 and the cylindrical portion of the cylindrical main body 66. This decorative sticker 76 has a design as identification information drawn in a specific color, and in the example of FIG. 5B, the number "7" is specifically drawn in a predetermined color. Therefore, in this embodiment, one piece of identification information is constituted by the design drawn on the decorative seal 76 surrounded by the small recess 75.

The rotating drum 65a configured as described above is fixed to the stepping motor 82a side by fitting its shaft fitting hole 68 to the output shaft 100 of the stepping motor 82a and screwing it with the screws 77. As mentioned above, the stepping motor 82a is fixed to the motor fixing plate 78a, and there are
Positioning protrusions 79a and 80a are formed. The positioning protrusions 79a, 80a engage with the positioning grooves 52a, 53a of the box main body 50 and the positioning grooves 47a, 48a of the front support frame 42, so that the positioning protrusions 79a, 80a engage with the positioning grooves 52a, 53a of the box main body 50 and the positioning grooves 47a, 48a of the front support frame 42, and move the rotating drum mechanism 64a toward the box main body 50 side. Precise mounting position is regulated.

Furthermore, mounting pieces 81a connected to the heat sink 57 described above are formed on the upper and lower rear ends of the motor fixing plate 78a.

In this way, all the rotating drum mechanisms 64a to 64c are unitized and housed and fixed in the box body 50, so that assembly is easy and replacement in the event of failure is extremely easy.

Next, the configuration of the stepping motor 82a, which is fixed to the motor fixing plate 78a and constitutes the main part of this embodiment, will be explained with reference to FIGS. 1 to 3. As shown in FIG. 1, the stepping motor 82a includes a stator forming mounting plate 83, a central stator forming cylinder 91, and a stator forming cover plate 9, which constitute a fixed side (hereinafter referred to as a stator).
5, and a rotor 97 forming a rotating side (hereinafter referred to as a rotor). First, the configuration on the stator side will be described. The stator forming mounting plate 83 has a bearing tube 84 fixed thereto in which a bearing hole 85 is formed through.
A donut-shaped sensor mounting board 86 is arranged in the bearing tube 84. The sensor mounting board 86 is provided with a reset position detector 87 as a reference position detector, a sensitivity adjuster 88 for adjusting the sensitivity of the reset position detector 87, and a circuit for driving them. In this embodiment, the reset position detector 87 is composed of a reflective photosensor, and derives an output signal by detecting reflected light. Note that the position of the reset position detector 87 on the sensor mounting board 86 is provided at a position corresponding to a point on the rotation locus of the detected portion 102, which will be described in detail later. Further, the sensor mounting board 86 is fixed to the stator forming mounting plate 83 with screws, and in the fixed state, the wiring 105 is connected to the back side of the stator forming mounting plate 83.
is being drawn out. Further, the stator forming mounting plate 83 is provided with a large number (45 in the embodiment) of needle-shaped stator cores 90.
A is formed to protrude inward in a circular shape. In addition,
Mounting pieces 89a and 89b are formed on the upper and lower sides of the stator forming mounting plate 83 for fixing the stepping motor 82a to the motor fixing plate 78a with screws (not shown).

The central stator forming cylinder 91 is formed into a cylindrical shape with the front and rear sides open, and the central part in the width direction is formed in a donut shape, and the stator core 9 extends from the circumference of the center in both the front and rear directions.
The same number of needle-shaped stator cores 90b and 90c as 0a are formed in a protruding manner. And each stator core 90b,
Winding coils 92a and 92b are arranged around the outer periphery of 90c. In addition, the central stator forming cylinder 91 includes a winding coil 92.
Wire pull-out parts 94a and 94b that pull out the wires 93a and 93b extending from a and 92b to the outside (however, 94a is
(not shown) is formed. The central stator-forming cylinder 91 is integrally fixed to the stator-forming mounting plate 83 by inserting and fixing the stator-forming mounting plate 83 into its minus-side open end surface. In addition, the winding coils 92a, 9
Wirings 93a and 93b extending from 2b and wiring 105 extending from the sensor mounting board 86 are connected to one connector 107a as a collective wiring 106a, pass through the wiring through hole 55a, and are connected to the terminal 61a of the relay board 59. Ru.

The stator forming cover plate 95 has the same number of needle-shaped stator cores 9C1d as the stator core 90a protruding inward, and has an output shaft penetrating hole in the center thereof for passing the output shaft 100 therethrough. Hole 96 has been opened. This stator forming cover plate 95 is also fixed to the central stator forming cylinder 91 by inserting it into the other open end surface of the central stator forming cylinder 91 and tightening it. As described above, the stator forming mounting plate 83
When the central stator forming cylinder 91 and stator forming cover plate 95 are integrally assembled, stator cores 90a and 90b1
The positional relationship is such that the stator cores 90c and 90d mesh with each other, and the four stator cores 90a to 90
The teeth of d are arranged out of phase so that they are equally spaced.

On the other hand, the rotor side is composed of a rotor 97 made of iron and a rotating shaft 98 fixed to the center of the rotor 97 and protruding in the front-rear direction. rotate! ll! Ill98 is passed through the bearing hole 85 of the bearing sleeve 84 and protrudes outside the stator forming mounting plate 83, and a fixing washer 104 (see FIG. 3) is locked in a fixing groove 99 formed at its rear end. The rotor 97 is rotatably supported. Note that a smooth washer 103 is interposed on the rotating shaft 98 to make the rotor 97 rotate more smoothly. Moreover, the rotor 97 is
It is formed to have a diameter slightly smaller than the diameter of the stator cores 90a to 90d provided in a circular shape, and as shown in FIG. It is configured to have a small width dimension. A detected portion 102 is provided inside the rotor 97 so as to protrude toward the sensor mounting board 86 . The detected portion 102 has a white color applied to the tip facing the reset position detector 87 so that it can be detected by the reset position detector 87.

Furthermore, an output shaft 100 having a cut surface 101 is fixed to the tip of the rotating shaft 98, and the rotating drum 65a is accurately fitted onto this output shaft 100.

The stepping motor 82a configured as described above is
It constitutes a so-called two-phase unipolar drive type stepping motor, and when a drive pulse is sent, it is stepped by "θ/4" degrees (θ: tooth bit of the stator core). That is, in this embodiment, since θ=360/45=8, the step is stepped by 2 degrees for each drive pulse. Therefore, a drive signal consisting of four excitation patterns shown in FIG. 10A, which will be described later, is applied to the stepping motor 82.
The rotating drum 65a can be rotated at a predetermined number of rotations by sending the rotation drum 65a to a predetermined number of rotations. In reality, the stepping motors 82a to 82c are set to have different rotation speeds. In other words, the rotation speed is set to decrease from the left side to the right side.

In the stepping motor 82a described above, the reset position detector 87 and the detected part 102 are configured inside the stepping motor 82a, that is, the stator forming mounting plate 83, the central stator forming cylinder 91, and the stator forming cover 95. Since the reset position detector 87 is installed in a space where dust is attached to the reset position detector 87, it is possible to prevent detection failures, thereby ensuring stable detection operation over a long period of time. I can do it. Furthermore, since the detected portion 102 is provided on the rotor 97 on the rotating side of the stepping motor 82a, compared to the conventional case where the detected portion is provided on a rotating drum molded from synthetic resin. hand,
The relative positional relationship between the detected part 102 and the reset position detector 87 is maintained accurately over a long period of time, and this also makes it possible to ensure stable detection operation over a long period of time.

In addition, in the above-mentioned stepping motor 82a,
Although the reset position detector 87 and the detected portion 1°2 are shown to be installed inside the stepping motor 82a,
For example, as shown in FIG.
The rotating shaft 98 constituting the rotating side of a is attached to the stator forming mounting plate 8.
3, and a rotating disk 10 is placed at the protruding position.
8 is fixed, and a detected part 102 is provided inside the outer periphery of the rotary disk 108. On the other hand, a sensor mounting board 86 is fixed to the back side of the stator forming mounting plate 83 to detect the detected part 102 and the reset position. The structure may be such that it faces the container 87. In the case of such a structure, dust etc. tend to adhere to the reset position detector 87 compared to the structure shown in FIG. The stability of the relative positional relationship between the position detector 87 and the detected part 102 does not change, and the stability of the detection operation based on this is ensured.

Operation of the rotary display device The operation of the rotary display device 20 having the above-described configuration will be explained with reference to FIGS. 7 to 10C. Detector (sensor)
87a to 87c are input/output circuits (I/O circuits) as shown in FIG.
lo) 120 to the microcomputer 110 . The microcomputer 110 includes an MPU 111 that can execute control operations according to predetermined procedures.
, a ROM 112 that stores operational program data for the MPUI 11, and a RAM 113 that can write and read necessary data. In the RAM 113, there is a step counter (SCI to 5C3) 11 that counts the number of driving steps of the stepping motors 82a to 82c.
4 to 116, and random display data (RDI to RD3) that is taken out from the random number table and confirmed at the time of starting winning.
117 to 119. In addition, the microcomputer 110 is connected via an input/output circuit 120 to the start switches 12a to 12c, the stop switch 13, the solenoid 6 of the variable winning ball device 2, and the V
A winning ball detector (V sensor) 9 is connected to each.

By the way, when the power is turned on, the rotating display device 2
0 performs the operation shown in FIG. In other words, the power is on
Step Sl) is used to determine whether or not the stepping motors 82a to 82C are turned ON.
Hereinafter, the SP1 to SP3 motors) (hereinafter referred to as SP1 to SP3 motors) are started to be driven (steps S2°S2', S2'').Hereinafter, since the same process is performed for all SP motors, the process for the SPI motor will be explained.

When the SP1 motor is driven in step S2, the step counter S provided in the microcomputer 110
It is determined whether the value of CI is a reset value (step S3). By the way, the stepping motor is the 10th
As shown in FIG. A and FIG. 10B, pulse signals φ1φ2, φ3, and φ4 having a phase shift are applied for each drive pulse that determines the step feed timing, and the drive is driven one step at a time. That is, in step O, the signal is (1100), in step 1, the signal is (0'1lO), and in step 2
In step 3, the signal is (0011), and in step 3, it is (1001).
, and since the 1-step signal rotates 2 degrees at a time, the 180-step signal causes the S.
P motors 1 to 3 rotate once. Therefore, the number of identification information drawn on the rotating drums 65a to 65c is, for example, 1.
If there are five, a signal of 12 steps is sent to drive one piece of identification information. Thus, step counter SCI detects the reset value of step O every time there is a signal of four steps.

Here, the reset value refers to one pattern (in the illustrated example, φ1 and φ2) out of four excitation patterns based on a set of two pulse signals that are repeated five times at a four-step cycle as shown in FIG. 10B. set) is used as a reference excitation pattern, and the reference excitation pattern is used as a reset value. Therefore, the reset value in step S3 is determined based on whether the step of the stepping motor indicates the value of step 0 (1100).

When step counter SCI detects the reset value in step S3, it is determined whether sensor 1 (reset Q position detector 87) is ON or not (step S4). This is determined to be ON when the sensor 1 detects the detected portion 102. If the sensor 1 is not determined to be ON even after the predetermined time T has elapsed (step S6), an alarm process is performed (step S7) and an alarm is issued. This is because the SP1 motor may be out of order or the sensor 1 may be out of order.

On the other hand, when the sensor 1 is turned on, the rotating drum 65a
The step number 01 of the display data corresponding to the identification information to be displayed is called and processed (step S5), and then,
It is determined whether the value of the step counter SCI and the number of steps n1 of the display data are the same (step S8),
When they become the same, the SPI motor is stopped (step S9) and predetermined identification information is displayed.

The processing of steps S3 to S9 of the SPI motor described above is as follows:
Steps S3' to S9 of SP2 motor and SP3 motor
' and steps 33'' to 89'' are also applied, and predetermined identification information is displayed on the rotating drums 65b, 65c.

In this manner, in this embodiment, when the power is turned on, the stepping motors 82a to B2c are unconditionally rotated, predetermined identification information is displayed, and then stopped.

Therefore, it is possible to determine whether the rotary display device 20 is defective before the player starts the game.

Next, referring to FIG. 9, the operation of the rotary display device 20 during a game will be explained. First, the ball starts winning hole 11a~
It is determined whether or not the start switches 12a to 12c have been turned on after winning the llc (step 5IO), and when the start switches 12a to 12c have been turned on, the randomly extracted data RDI to RD
3 (steps Sit, Sll', Si1''
). The data RDI to RD3 correspond to the SPI to SP3 motors, respectively. Also, data RDI to RD3
is also data for specifying the identification information displayed on the rotating drums 65a to 65c. Therefore, in this operational example, the combination of identification information to be displayed on the rotating drums 65a to 65c is determined at the time when a hit ball wins in the starting winning openings 11a to 11C.

The following processing is the same for each SP motor, so SP
The processing procedure of the I motor will be explained.

After the data RDI is determined, the spt motor is driven (step 512). When driving this SPI motor, a large signal of pulse 1] is initially applied so as to gradually increase the rotational speed, and a signal with a smaller pulse width is gradually applied. This is done because the starting torque of the SPI motor is small. Also, S
When stopping the PI motor, it is also preferable to gradually reduce the rotational speed. This is because if the drum is suddenly stopped, the inertial force of the drum becomes greater than the magnetic attraction force, which may cause the drum to rotate excessively.

After the drive of SP1 motor starts, sensor 1 becomes ONL.
/ONL (step 513), the step counter SCI is reset (step 514) and the step counter S01 starts counting (step 515). Note that the step counter SCI is reset when the reset value is step 0 (1100) (logical product of output A and output B) and sensor 1 is ON, as shown in FIGS. 10B and 10C.
(Output C) (logical product of output A, output B, and output C). To explain this, the stepping motor rotates while repeating starting and stopping every time there is a single step, so it always rotates while shaking. Therefore, when the detected part 102 is detected by the sensor 1, noise due to vibration may occur before and after the rise and fall of the output signal (position detection signal C in FIG. 10B). In other words, the detected part 102 and the sensor 1
If the reference position for resetting the step counter SCI is detected only by the step counter SCI, it may cause malfunction.

Therefore, as shown in FIG. 10C, false detection can be prevented by taking the logical product of the output of the reference excitation pattern (logical product of output A and output B) and the output of sensor 1 (output C). , the reset position of the step counter SC1 is accurately detected.

After the step counter SC1 starts counting, it is determined whether there is a stop command signal from the stop switch 13 or the timer (step 516), and if there is a stop command signal, the value of the step counter SCI and the data RD are determined.
It is determined whether the values of I are the same (step 51
7). And when those values are the same, SPI
The motor is stopped (step 318). At this time, the identification information displayed on the rotating drum 65a is the data R.
The processing from steps 313 to S18, which is the identification information determined corresponding to the DI, is performed in SP2. Steps 313'-818' and step 813 in SP3 motor
″~318″, and the rotating drums 65b, 65c
The data RD2. Identification information corresponding to RD3 is displayed.

In the above-mentioned embodiment, the identification information to be displayed when a winning is started is determined, but the combination of identification information may also be determined by detecting the stopped position after receiving a stop command signal. good. This means that the sensor
This can be determined by counting the number of steps from when the SP1 to SP3 motors are detected.

The rotary display device 2o according to the embodiment has been described above, but according to this embodiment, the rotary drums 65a to 65
The detected part 10 for specifying the identification information formed in c.
2 and the reset position detector 87 to the stepping motor 8
Since they are provided on the rotating side and fixed side of 2a to 82c,
The relative positions of the detected part 1.2 and the reset position detector 87 do not change over a long period of time, and therefore,
The reset position can be detected accurately over a long period of time, and the rotating drums 65a to 65c can be stopped at accurate positions.

In the above-described embodiment, the rotating drums 65a to 65c are used as examples of rotating bodies, but a disk with identification information drawn on the outer periphery may be rotated by a stepping motor. Furthermore, although a reflective photosensor is shown in the above embodiment as the reference position detector, it may also be a facing photosensor, or a sensor with a completely different structure, such as a sensor consisting of a magnet and a Hall element. But that's fine. Further, as a method for counting the number of drive steps of the stepping motor, a method has been shown in which the number of steps is counted after resetting, but a method may also be used in which the number is set and subtracted from the original number of steps instead of resetting.

Furthermore, although a pachinko game machine to which a rotating display device is applied is illustrated as a gaming machine, what kind of gaming machine (for example, a throttle machine, an arrangement type It may also be a pachinko game machine (pachinko game machine, etc.).

[Effects of the Invention] As is clear from the above explanation, the rotating display device for a gaming machine according to the present invention includes a detected part and a reference position detector for specifying identification information formed on a rotating body. are provided on the rotating side and fixed side of the stepping motor, so the relative position between the detected part and the reference position detector does not change over a long period of time. The reference position can be detected, and the rotating body can be stopped at an accurate position.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of a stepping motor according to an embodiment, FIG. 2 is a partially cutaway front view of the stepping motor, FIG. 3 is a sectional view of the stepping motor, and FIG.
The figure is an exploded perspective view of the rotary display device according to the embodiment, No. 5A.
The figure is a side view of a rotating drum provided in a rotating display device;
Fig. 5B is a sectional view taken along the line AA' in Fig. 5A, Fig. 5C is a sectional view taken along the line BB' in Fig. 5A, and Fig. 6 shows that the reset position detector and the detected part are different. FIG. 7 is a block diagram showing the control circuit that controls the game; FIG. 8 is a flow diagram showing the operation when the rotating display device is powered on; FIG. 9 is a flowchart showing the operation of the rotary display device during gaming, FIGS. 10A to 10C are explanatory diagrams explaining a method for detecting the reference position of the stepping motor, and FIG. 11 is a flowchart showing the operation of the rotating display device during gaming. It is a partially enlarged front view of a game board of a pachinko game machine to which a display device is applied. 2. Game board (constituting a part of the game machine) Rotating display device a to 65c Rotating drum (rotating body) a to 82c Stepping motor Reset position detector (reference position detector) 2 ...Detected part patent applicant Sankyo Co., Ltd.

Claims (1)

[Scope of Claims] A rotating display device for a gaming machine configured to rotate a rotating body on which a plurality of pieces of identification information are formed on its surface by a stepping motor, wherein the stepping motor has an appropriate position on its rotation side. A detected part is provided for detecting the reference position in the rotating state,
A rotating display device for a gaming machine, characterized in that a reference position detector for detecting the detected portion is provided on the fixed side thereof.