JP3877803B2 - Rotating display device for gaming machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rotation display device for a gaming machine used for displaying characters or designs of a pachinko machine or a slot machine.
[0002]
[Prior art]
In general pachinko machines or slot machines, a plurality of characters or designs are drawn on the outer periphery of the rotating drum, and the rotating drum is mechanically rotated and then stopped to display the required characters or designs. Some have a display device.
[0003]
As shown in FIG. 15, the conventional rotary display device includes three rotary display devices 10 arranged side by side to form a display device main body 12. The rotary display device 10 is configured such that an inner rotor type motor 16 is installed at the center of a substrate 14, and a rotary drum 24 is attached to an output shaft 22 of a reduction gear mechanism 20 interlocking with a drive shaft 18.
[0004]
The rotating drum 24 is made of plastic and has a shape in which a bottom surface portion is provided in one opening of a cylindrical body. As shown in the figure, the output shaft 22 is fitted in a hole portion provided in a projecting portion 26 at the center of the circular bottom surface. The motor 16 is attached to the inside of the cylinder of the rotary drum 24.
[0005]
Further, a rod-like origin positioning boss 28 is erected at a predetermined position on the inner surface of the cylinder on the bottom surface of the rotating drum 24, and a U-shaped cross section for detecting the passage of the boss 28 at a predetermined position on the rotation locus of the boss 28. The position detection sensor 30 is arranged.
[0006]
Then, the motor 16 is driven to rotate the rotating drum 24 via the reduction gear mechanism 20 and the origin when the boss 28 passes the position detection sensor 30 is set. Control is performed so that a required character or design drawn at a predetermined position on the circumferential surface of the rotating drum 24 is displayed after the rotation angle is turned.
[0007]
In the conventional rotary display device as described above, one rotary drum 24 is individually driven by one motor 16, and the motor 16 is housed in each rotary drum 24. Since the width cannot be made narrower than the width of the motor 16, there is a problem that a narrow rotating drum cannot be made.
[0008]
Further, since the motor 16 and the reduction gear mechanism 20 are miniaturized for the purpose of being housed in the rotary drum 24, the structural rigidity of this portion such as increasing the bearing for the output shaft 22 of the reduction gear mechanism 20 is increased. Cannot be made sufficiently large, and the output shaft 22 tends to be thin. For this reason, when trying to rotate the large rotating drum 24 with a small bearing that supports the thin output shaft 22, there is a problem that the balance is lost, so-called core blurring occurs, and the operation is not smoothly performed.
[0009]
[Problems to be solved by the invention]
In consideration of the above-described facts, the present invention newly provides a rotation display device for a gaming machine in which the width of the rotary drum can be reduced, the shaft support portion of the rotary drum is increased in rigidity, and the rotary drum can be smoothly rotated. For the purpose.
[0010]
[Means for Solving the Problems]
According to a first aspect of the present invention, there is provided an annular stepping motor stator mounted on a fixed shaft attached to an apparatus main body, a bearing member provided on the outer periphery of the stator and having the stator disposed therein, relative to the stator by the bearing member disposed outside of the bearing member and the rotor of the rotating freely axially supported by the annular stepping motor, assembled on the outer periphery of the rotor, characters or symbols displayed on the outer peripheral surface And a drum member .
[0011]
The invention according to claim 1 has a large and rigid structure related to the bearing member by rotatably supporting the rotor via the bearing member at a position on the circumference of the large diameter called the outer peripheral portion of the stator. Therefore, even if the balance on rotation on the rotor side is slightly disturbed, the bearing member has high rigidity to suppress the core runout and to smoothly rotate the rotor.
[0012]
According to a second aspect of the present invention, in the first aspect of the present invention, an origin detection sensor is provided that has an origin detected portion at one predetermined position of the rotor and the stator, and detects the origin detected portion at the other of the rotor and the stator. It is provided.
[0013]
In the invention according to claim 2, since the origin detecting means is provided at a predetermined position in the multi-pole magnetized rotor for the stepping motor, the relative position between the multi-pole magnetized position on the rotor and the origin detecting means is relatively small. Since there is no error in assembly or operation in the positional relationship, the reliability of the origin position detection can be kept high.
[0016]
The invention according to claim 3 is the invention according to claim 1, wherein the stator includes a plurality of coils arranged in a plurality of rows in the axial direction of the rotor.
[0017]
In the invention according to claim 3 , since the stator includes a plurality of coils arranged in a plurality of rows in the axial direction of the rotor, the rotation direction of the rotor can be controlled.
[0018]
The invention according to claim 4 is the invention according to claim 3 , wherein the stator further includes a cylindrical body having a plurality of openings formed in a circumferential direction.
[0019]
The invention according to claim 5 is characterized in that, in the invention of claim 3 , the stator further includes a claw pole having a comb shape and meshing with each other.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
(First embodiment)
FIG. 1 shows a rotary display device for a gaming machine according to a first embodiment of the present invention applied to a pachinko machine. The main body 50 of the rotary display device is disposed at the center of the game board 52 in the pachinko machine and has three rotary drums 54. Further, pachinko ball passages 56 are respectively provided from both lateral sides of the rotary display device main body 50 to the lower portion, and start ports 58 are provided at the lower portions of the respective passages 56.
[0021]
A big prize opening 60 is provided below the start opening 58, and a detachment opening 62 is further provided below the winning opening 60. On the board surface of the game board 52, a general winning port 64, a windmill 66, and the like are provided.
[0022]
As shown in FIGS. 2 to 4, each rotary drum 54 of the rotary display device main body 50 is configured as a stepping motor, and is fixed to a fixed shaft 72 that is bridged between a pair of mounting plates 68 and 70. Is provided.
[0023]
A coil bobbin 73 is fitted on the fixed shaft 72, and the fixed shaft 72 and the coil bobbin 73 are positioned by positioning means (not shown) (for example, a key and a key groove formed on the fixed shaft 72 and the coil bobbin 73 are fitted together). They cannot rotate with respect to each other.
[0024]
A coil 74 is wound around the coil bobbin 73, and stator members 76 and 78 are fitted to the coil 74 from both ends thereof. These two stator members 76, 78 are arranged in such a manner that their serrated corrugated stator poles 76A, 76B are arranged such that one tooth is located between the other teeth as shown in FIG. Yes. A portion of the annular shape of the two combined stator members 76 and 78 is cut out, and a printed circuit board 80 is installed so as to be accommodated in the cutout portion.
[0025]
On the printed circuit board 80, an origin detection sensor 80A configured with a drive circuit and a Hall element connected to the connection connector 81 and the coil 74 is configured.
[0026]
As described above, the stator members 76 and 78 provided with the printed circuit board 80 are fitted into the inner ring 82A of the bearing member 82 formed of a ball bearing, and the stator members 76 and 78 on the fixed shaft 72 side and the inner ring 82A are connected. It is fixed integrally. A rotor member 84 is fitted to the outer ring 82B of the bearing member 82.
[0027]
The bearing member 82 is formed of a material other than a magnetic material that does not hinder the exciting action between the stator members 76 and 78 and the rotor member 84.
[0028]
As shown in FIG. 5, the rotor member 84 is alternately magnetized with N pole portions 84A and S pole portions 84B as rotor magnetic poles in the circumferential direction at predetermined intervals. In addition, a magnetized portion 86 that is a target to be detected by the origin detection sensor 80A is provided at one predetermined outer peripheral portion of the rotor member 84. That is, the origin detection sensor 80 </ b> A of the printed circuit board 80 is positioned adjacent to the turning locus of the magnetized portion 86 of the rotor member 84.
[0029]
A cylindrical drum member 88 is assembled to the outer peripheral portion of the rotor member 84. The drum member 88 is made of a synthetic resin and is formed in an inverted U-shaped cross section in the first embodiment, and a plurality of characters or symbols are displayed on the outer peripheral surface portion thereof. The drum member 88 is aligned by using a positioning boss (not shown) provided on the rotor member 84 in order to match the position of the symbol displayed on the drum member 88 with the origin magnetizing portion 86 of the rotor member 84. Then press fit and assemble together. Alternatively, the drum member 88 may be provided on the rotor member 84 by integral molding. In this way, the drum member 88 can be easily assembled to the rotor member 84. Furthermore, by changing the width of the drum member 88, the width of display of characters or symbols can be changed.
[0030]
In the stepping motor according to the first embodiment described above, the rotation direction of the rotary drum 54 is designated in advance by the shape of the magnetic pole.
[0031]
In addition, support columns 90 are installed to bridge the four even portions of the pair of mounting plates 68 and 70 of the rotary display device main body 50, respectively, and the structural rigidity of the device is reinforced.
[0032]
As described above, the configured rotating drum 54 may be used alone or in a plurality. When the rotary drum 54 is used alone, one rotary drum 54 is mounted between a pair of mounting plates 68 and 70 as shown in FIG.
[0033]
Further, when a plurality of rotating drums 54 are used side by side, for example, a configuration in which three rotating drums 54 are used side by side is configured as shown in FIG. In this case, the fixed shaft 72, the printed circuit board 80, and the support 90 are formed to be long corresponding to the three rotating drums 54. Coil bobbins 73 are fitted and inserted into predetermined three portions of the long, single fixed shaft 72, and the fixed shaft 72 and the coil bobbin 73 are made unrotatable by positioning means (not shown). A coil 74 is wound around the coil bobbin 73. At the same time, a drive circuit and an origin detection sensor 80A are provided at predetermined three locations on one long printed circuit board 80, respectively.
[0034]
The rotating shaft 54 is assembled to the fixed shaft 72 at three predetermined positions where the coil 74 is wound, as described above, and the adjacent portions of the rotating drums 54 are spaced apart from each other by a predetermined interval. A collar member 92 is provided for maintaining the above.
[0035]
Next, the control operation of the rotary display device configured as described above will be described. The rotating drum 54 of the display device supplies a required driving pulse current through the connection connector 81. Then, the rotor member 84 is rotated integrally with the drum member 88 by supplying power to the coil member 74 while changing the direction in which the drive pulse current flows for each pulse by the drive circuit of the printed circuit board 80. Then, on the basis of the time when the origin magnetized portion 86 of the rotor member 84 passes the position of the origin detection sensor 80A, the number of pulses of the drive pulse current is counted by a control device (not shown) so that the origin of the rotor member 84 from the origin. Calculate the amount of rotation.
[0036]
From the amount of rotation of the rotor member 84, it is detected which character or symbol is currently displayed on the outer peripheral surface of the drum member 88 that rotates integrally with the rotor member 84. Alternatively, in order to display a desired character or design of the drum member 88, a predetermined amount of rotation from the origin for the desired character or design is read from the storage device, and the required amount of rotation is set based on the origin. A corresponding drive pulse current is supplied to control the rotor member 84 to stop after the required amount of rotation. The rotation display device including a plurality of rotating drums 54 performs the above-described control operation independently for each rotating drum 54.
[0037]
Next, the operation when a rotary display device having three rotary drums 54 is used in a pachinko machine will be described. In this case, when a pachinko ball enters the start port 58, the control unit (not shown) hits the ball in response to the timing when the ball enters, determines whether the ball is detached, and displays characters or symbols displayed on each rotary drum 54. decide.
[0038]
Then, the rotation amount from the origin of each character or symbol to be displayed is read from the storage unit, and the drive pulse current of the number of pulses corresponding to each rotation amount is detected when the origin detection sensor 80A detects the origin magnetization unit 86. Power is supplied to the rotating drums 54 corresponding to the respective standards, and desired characters or designs are displayed respectively.
[0039]
When a win display is made on the rotary display device (for example, display of numerals 7, 7, and 7), the big winning opening 60 is released, and when it is off, the next start opening 58 is awaited. It works like this.
[0040]
In the first embodiment described above, the rotation direction of the rotary drum 54 is specified by the shape of the magnetic pole, but it is specified by the shape of the bear removing coil starting type, one-way clutch, one-way rotation gear, and stator teeth. May be.
[0041]
(Second Embodiment)
A second embodiment of the present invention will be described with reference to FIGS. The second embodiment is an example in which the bearing members 100 and 102 are arranged at both ends of the rotor member 84 and the stator coil 104 is divided into the A-phase coil 106 and the B-phase coil 108 in the axial direction. 8 to 13, portions corresponding to those in FIGS. 1 to 7 are denoted by the same reference numerals, and detailed description thereof is omitted.
[0042]
As shown in FIGS. 8 and 9, the A-phase coil 106 and the B-phase coil 108 are housed in coil bobbins 110 and 112 in a wound state. A cylindrical body 114 as a stator member is arranged on the outer periphery of the A-phase coil 106 and the B-phase coil 108 so as to cover the A-phase coil 106 and the B-phase coil 108. Here, the reason why the stator coil 104 is divided into the A-phase coil 106 and the B-phase coil 108 to have two phases is to control the forward and reverse rotation directions of the drum member 88. The stator coil 104 is not limited to two phases, and a plurality of phases may be appropriately combined.
[0043]
As shown in FIG. 8, a long hole 116 is formed in the cylindrical body 114 at a portion corresponding to the printed circuit board 80 along the axial direction, and the printed circuit board 80 is fitted into the long hole 116. The cylinder body 114 is fixed to the mounting plates 68 and 70 by positioning means (not shown). A required drive pulse current is supplied to the A-phase coil 106 or the B-phase coil 108 through the connection connector 81 on the printed circuit board 80.
[0044]
A plurality of openings 118 </ b> A and 118 </ b> B are formed in the circumferential wall of the cylindrical body 114 along the circumferential direction at portions facing the A-phase coil 106 and the B-phase coil 108. As shown in FIG. 12, these openings 118A and 118B are continuously arranged in a letter C shape, and these are referred to as an A-phase pole 119A and a B-phase pole 119B. The A-phase pole 119A and the B-phase pole 119B are arranged such that a predetermined angle, for example, a 1/2 pitch phase (electrical angle 90 °) is shifted from each other.
[0045]
The reason why the A-phase pole 119A and the B-phase pole 119B are shifted by ½ pitch is formed between the openings 118A and 118A when the drive current is supplied to the A-phase coil 106 and the B-phase coil 108. This is because the rotor member 84 shown in FIG. 8 is rotated by the magnetic energy generated between the A-phase pole 119A and the B-phase pole 119B formed between the openings 118B and 118B.
[0046]
As shown in FIG. 9, between the bearing members 100 and 102, the outer peripheral surface of the cylindrical body 114 constituting the stator and the rotor member 84 are directly opposed. That is, as shown in FIG. 10, the cylinder 114 and the rotor member 84 are arranged such that an air gap 120 is provided therebetween. The air gap 120 is, for example, about 0.05 to 0.5 mm.
[0047]
In this embodiment, since the bearing members 100 and 102 are disposed at both ends of the cylindrical body 114 in the axial direction, the rotor member 84 (drum member 88) can be supported in a stable state.
[0048]
Based on FIG. 11, the connection of the exciting winding will be described. 11 shows an example of unipolar drive, FIG. 11A is a connection diagram of the excitation winding of the A-phase coil 106, and FIG. 11B is a connection diagram of the excitation winding of the B-phase coil 108. is there.
[0049]
As shown in FIG. 11A, in the A-phase coil 106, a terminal 120 and a terminal 122 constitute an A-phase and an A′-phase, and a common terminal 124 connected to these terminals 120 and 122 is connected. ing. The phase A is when current flows from the terminal 124 to the terminal 120, and the phase A ′ is when current flows from the terminal 124 to the terminal 122.
[0050]
As shown in FIG. 11B, in the B-phase coil 108, a terminal 126 and a terminal 128 constitute a B-phase and a B′-phase, and a common terminal 130 connected to the terminal 126 and the terminal 128 is connected. Has been. The B phase is a case where current flows from the terminal 130 to the terminal 126, and the B 'phase is a case where current flows from the terminal 130 to the terminal 128. Other configurations are the same as those of the first embodiment shown in FIG.
[0051]
Next, the control operation of the rotary display device configured as described above will be described. The drive circuit of the printed circuit board 80 shown in FIG. 8 supplies a drive pulse current to the A-phase coil 106 and the B-phase coil 108 while changing the flowing direction for each pulse. For example, as shown in FIG. 12A, when a current flows from the terminal 124 to the terminal 122 (see an arrow) and a current flows from the terminal 130 to the terminal 126 (see the arrow), the rotor member 84 shown in FIG. Since the center P of the S pole portion 84B (indicated by a one-dot chain line in FIG. 12) is located at the position where the A phase pole 119A and the B phase pole 119B are excited to the N pole, an attractive force acts on the rotor member 84. Rotate downward (arrow CW in FIG. 12).
[0052]
Next, as shown in FIG. 12B, when a current is passed from the terminal 130 of the B-phase coil 108 (see FIG. 11B) to the terminal 128 to obtain the B′-phase, the B-phase was replaced with the N-pole by switching the magnetic field. The part of the pole 119B is the S pole. Therefore, a repulsive force acts on the rotor member 84 and further rotates downward.
[0053]
Further, as shown in FIG. 12C, when a current is passed from the terminal 124 of the A-phase coil 106 to the terminal 120 to form the A-phase, the portion of the A-phase pole 119A that is the S-pole is replaced by the N-pole. It becomes. Therefore, a suction force acts on the rotor member 84 and further rotates downward.
[0054]
Next, as shown in FIG. 12D, when a current is passed from the terminal 130 of the B-phase coil 108 to the terminal 126 to make the B-phase, the portion of the B-phase pole 119B that has been N-pole due to the exchange of the magnetic field is S. Become the pole. Therefore, a repulsive force acts on the rotor member 84 and further rotates downward.
[0055]
The rotor member 84 is rotated by a predetermined amount by sequentially performing the excitation switching. When the rotor member 84 is rotated in the direction opposite to the arrow CW direction in FIG. 12, the excitation switching opposite to the example in FIG. 12 is sequentially performed.
[0056]
In the present embodiment, the cylindrical body 114 is set to rotate at a step angle that is a multiple of the pattern. That is, in the case of 21 pictures, it is “84” poles multiplied by “4”. Since other operations are the same as those in the first embodiment, description thereof will be omitted.
[0057]
According to the second embodiment, the cylindrical body 114 and the rotor member 84 are directly opposed to each other, and the air gap 120 is set to a distance of about 0.05 to 0.5 mm. Therefore, the rotor member 84 (the rotating drum 88) is efficiently disposed. Can be rotated.
[0058]
When a plurality of rotating drums 88 according to the second embodiment are used side by side, for example, a configuration in which three rotating drums 88 are used side by side is configured as shown in FIG. Since the configuration and operation when a rotary display device including three rotary drums 88 is used in a pachinko machine are the same as those in the first embodiment, description thereof will be omitted.
[0059]
(Third embodiment)
A third embodiment of the present invention will be described with reference to FIG. The third embodiment is an example in which claw poles 132 and 134 that are generally used are used instead of the cylindrical body 114 of the second embodiment of FIG. In FIG. 14, parts corresponding to those in FIG. 8 are denoted by the same reference numerals, and detailed description thereof is omitted.
[0060]
That is, in the third embodiment, the claw pole 132 is disposed so as to face the A-phase coil 106, and the claw pole 134 is disposed so as to face the B-phase coil 108. The pole portions 132A and 132B of the claw pole 132 and the pole portions 134A and 134B of the claw pole 134 are coupled by being rotationally displaced by 1/2 pitch. Other configurations and operational effects are the same as those of the second embodiment, and thus description thereof is omitted.
[0061]
Furthermore, instead of the bearing member 82 of the first embodiment, a thin seal such as a plastic synthetic resin can be used as long as the rotor member 84 can be easily slipped and the air gap between the stator members 76 and 78 and the rotor member 84 can be shortened. A polychloro-triflowethylene (trade name) seal or the like may be interposed between the stator members 76 and 78 and the rotor member 84. In this case, since thickness can be made thinner than the bearing member 82 of 1st Embodiment, the rotary display apparatus main body 50 can be reduced in size.
[0062]
【The invention's effect】
As described above, according to the first aspect of the invention, since the rotor is pivotally supported by the bearing member disposed at the circumferential position of the large diameter provided on the outer peripheral portion of the stator, the balance at the time of rotation on the rotor side is achieved. Even if it is somewhat collapsed, it can be pivotally supported with high rigidity, so that there is an effect that core rotation during rotation can be suppressed and the rotor can be smoothly rotated.
[0063]
Furthermore, since the rotary display device itself is configured as a stepping motor, a reduction gear mechanism or the like is not required unlike the conventional one, and the structure can be simplified. In addition, since the rotor can be made thin and a separate wide drum member can be attached to the rotor, there is an effect that the area of the character or symbol display portion can be freely changed.
[0064]
According to the second aspect of the present invention, since the origin detection means is directly provided in the rotor, there is an effect that an error in manufacturing and assembly is eliminated, and the origin position of the rotor can be detected with high accuracy by the origin detection means on the stator side. . Further, if the origin detecting means is provided at the time of manufacturing the rotor, there is an effect that it is possible to manufacture a high-quality one with less errors.
[0066]
According to the third aspect of the present invention, since the stator includes a plurality of coils arranged in a plurality of rows in the axial direction of the rotor, the rotation direction of the rotor can be controlled.
[Brief description of the drawings]
FIG. 1 is a main part schematic front view showing a state in which a rotation display device of a gaming machine according to a first embodiment of the present invention is installed on a game board of a pachinko machine.
2 is an exploded perspective view of a main part showing the configuration of one rotating drum of the rotary display device shown in FIG. 1;
3 is a longitudinal sectional view showing the rotary display device shown in FIG.
4 is a longitudinal side view showing a cross section of the rotary drum section shown in FIG. 3; FIG.
FIG. 5 is a perspective view showing a rotor member according to the first embodiment.
FIG. 6 is a perspective view showing a stator member according to the first embodiment.
FIG. 7 is a longitudinal sectional view showing a rotary display device including three rotary drums according to the first embodiment.
FIG. 8 is an exploded perspective view of a main part showing a configuration of one rotating drum of a rotary display device according to a second embodiment of the present invention.
9 is a longitudinal sectional view showing the rotary display device shown in FIG.
10 is a longitudinal side view showing a cross section of the rotary drum portion shown in FIG. 9; FIG.
FIG. 11 is a connection diagram for explaining excitation characteristics of an excitation winding according to a second embodiment.
FIG. 12 is an operation diagram showing a movement state of a magnetic field by excitation switching between an A-phase pole and a B-phase pole of a cylindrical body according to a second embodiment.
FIG. 13 is a longitudinal sectional view showing a rotary display device including three rotary drums according to a second embodiment.
FIG. 14 is a perspective view showing a claw pole when a claw pole type is used instead of the cylinder according to the second embodiment.
FIG. 15 is a schematic longitudinal sectional view illustrating a conventional rotary display device.
[Explanation of symbols]
50 Rotation display main body 54 Rotating drum 72 Fixed shaft 73 Coil bobbin 74 Coil member 76 Stator member 76A Stator pole 78 Stator member 78A Stator pole 80A Origin detection sensor 82 Bearing member 84 Rotor member 84A N pole part (rotor magnetic pole)
84B S pole (rotor pole)
86 Origin magnetized portion 88 Drum member 100 Bearing member 102 Bearing member 104 Stator coil 114 Cylindrical body 118A Opening 118B Opening 132 Claw pole 134 Claw pole

Claims (5)

A stepping motor stator mounted on a fixed shaft attached to the apparatus body;
A bearing member disposed on the outer periphery of the stator;
An annular stepping motor rotor that is capable of accommodating the stator in a hollow interior, and capable of displaying characters or designs on the outer peripheral side, and is rotatably supported by the bearing member with respect to the stator;
A rotary display device for a gaming machine, comprising: An origin detected part is provided at a predetermined location on one of the rotor and stator,
2. The rotation display device for a gaming machine according to claim 1, wherein an origin detection sensor for detecting the origin detected portion is provided on the other of the rotor and the stator. The rotation display device for a gaming machine according to claim 1 or 2, wherein the stator includes a plurality of coils arranged in a plurality of rows in the axial direction of the rotor. The rotation display device for a gaming machine according to claim 3, wherein the stator further includes a cylindrical body having a plurality of openings formed along a circumferential direction. 4. The rotary display device for a gaming machine according to claim 3, wherein the stator further includes a claw pole having a comb shape and meshing with each other.

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