JP2003310819A - Reel unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the precision of the fitting position of a position detecting part in the rotating direction of a reel, to reduce costs, to surely detect the position of the rotating direction of the reel, to avoid increase of dimensions, cost increase and reduction in the rigidity of a fixing plate. <P>SOLUTION: The reel unit is provided with: a reel 21 which displays a plurality of kinds of patterns on a peripheral surface; a motor 22 for rotate-driving the reed 21; a back light part 30 arranged on the side of the inner periphery of the reel 21 for illuminating the patterns on the reel 21 from its back; a reference piece 26a to be rotated with the reel 21; and a reference piece detection part 40 for detecting the passage of the reference piece 26a in rotation of the reel 21 for detecting a reference position in the rotating direction of the reel 21. The reference piece 26a is arranged adjacently to the center of rotation rather than the midpoint of the rotation center and the outer end of the reel 21 in the radial direction of the reel 21, and the reference piece detection part 40 is fixed to a back light part 30. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reel unit which is used in a slot machine, a ball game machine or the like, and which has a reel having a plurality of types of symbols displayed on its outer peripheral surface.

[0002]

2. Description of the Related Art Conventionally, a reel unit having a reel having a plurality of types of symbols displayed on its outer peripheral surface, a drive source (motor or the like) for driving the reel, and a sensor portion for reading a reference position of the reel is provided. , A plurality of variable display devices arranged in parallel are used in slot machines and ball game machines. Such a symbol variation display device is configured to stop the reel at a predetermined position by driving and controlling the motor based on the input signal from the sensor unit based on the result of the lottery performed inside the control device. There is.

Specifically, as shown in FIG. 26, the reel 101 is attached to a detection piece (light-shielding portion) 101a protruding from the outer ring portion (rim portion) in the inner circumferential direction and a substrate portion 103 for fixing the motor 102. The reference position of the reel 101 is specified by the sensor substrate 104 having the sensor (made up of the light emitting portion and the light receiving portion) 104a provided at a position where the passage of the detection piece 101a can be read. By calculating the movement amount from the position (the number of steps when the motor 102 is a stepping motor), the reel 101 is stopped at the position to be stopped while determining the symbol position.

Further, as shown in FIG. 27, the motor 105
Inside, a detection piece 105b (having a light-transmitting portion 105c) fixed to the rotating shaft 105a of the motor 105,
There is also a form in which the reference position is specified by a sensor 105d provided at a position where the passage of the light transmitting portion 105c can be read in the case portion of the motor 105.

[0005]

However, the above-mentioned conventional techniques have the following problems. In the first example, a predetermined relative positional accuracy between the reference piece 101a provided on the reel 101 and the sensor 104a that optically detects the passage of the reference piece 101a is required. For example, the reference piece 10
If the positions of 1a and the sensor 104a are too close to each other, there is a problem that the reference piece 101a interferes (contacts) with the sensor 104a when the reference piece 101a passes the sensor 104a when the reel 101 rotates. Further, if the reference piece 101a and the sensor 104a are too far apart from each other, there is a problem that the passage of the reference piece 101a cannot be optically detected.

In particular, when the reference piece 101a and the sensor 104a are too close to each other and the reference piece 101a passes the sensor 104a when the reel 101 rotates, the reference piece 1
When 01a comes into contact with the sensor 104a, the reference piece 1
There is a problem that 01a may be damaged.

Here, when the reel 101 is for a slot machine, since the radius of the reel 101 is as large as about 115 mm, the rotation axis of the reel 101 is 0.5 (deg) with respect to the rotation axis of the motor 102. ) When mounted at an angle, it is approximately 1 mm at the position of the reference piece 101a.
It will shift. However, the reference piece 101a and the sensor 104
In order to secure the predetermined relative position accuracy with respect to a, there is a problem that it takes time to assemble and the assembly cost is high.

Further, in the first example, since the reel 101 is rotated at a relatively high speed, the reference piece 101 is accordingly accompanied.
The peripheral speed of a also becomes faster. As a result, there is a problem that the reference piece 101a may not be reliably detected depending on the mounting position accuracy of the reference piece 101a and the sensor 104a, the detection capability of the sensor 104a, and the like.

Furthermore, in the first example, the sensor 10
The sensor substrate 104 having 4a has a general structure that is fixed to the mounting plate 103 to which the motor 102 is mounted. However, the sensor of the mounting plate 103 is considered in consideration of the positional relationship between the sensor 104a and the reference piece 101a. It is necessary to consider the shape of the portion to which the substrate 104 is attached. As a result, the shape of the portion of the mounting plate 103 to which the sensor substrate 104 is mounted becomes complicated and the strength of the mounting plate 103 becomes weak. If the rigidity of the mounting plate 103 is lowered, the motor 102
If resonance or the like occurs due to the rotation of the, there is a problem that it causes the generation of abnormal noise.

Further, if the components for detecting the reference position in the rotation direction (detector 105b, sensor 105d, etc.) are provided inside the motor 105 as in the second example, the motor 105 becomes large and the motor 105 becomes larger. There is a problem that the cost of 105 becomes high.

Therefore, the problem to be solved by the present invention is to improve the mounting position accuracy of the portion for detecting the position of the reel in the rotation direction and to reduce the cost of the portion for detecting the position of the reel in the rotation direction. In addition to making it possible to reliably detect the position of the
The purpose is to prevent the rigidity of the mounting plate of the drive unit such as the motor from decreasing without increasing the size of the drive unit such as the motor and increasing the cost.

[0012]

The present invention solves the above-mentioned problems by the following solving means. (Claim 1) The invention of claim 1 is a reel in which a plurality of types of symbols are displayed on the outer peripheral surface, a drive unit for rotationally driving the reel, and an inner peripheral side of the reel. A backlight unit that illuminates the symbol displayed on the outer peripheral surface from behind, a reference piece that is rotated together with the reel, and the reference piece when the reel is rotated in order to detect a reference position in the rotation direction of the reel. A reel unit including a reference piece detection unit for detecting passage of
The reference piece is arranged at least on the rotation center side with respect to an intermediate point between the rotation center and the outer end of the reel in the radial direction of the reel, and the reference piece detection unit is fixed to the backlight unit. It is characterized by being

According to the first aspect of the invention, firstly, the reference piece is arranged at least on the rotation center side with respect to the midpoint between the rotation center and the outer end of the reel in the radial direction of the reel. For example, the reference piece is arranged near the rotation center of the reel. Therefore, the peripheral speed of the reference piece can be slower than when the reference piece is provided near the outer circumference of the reel. Accordingly, the reference piece detection unit can more reliably detect the reference piece.

Further, since the distance between the rotation center of the reel and the reference piece is shortened, the positional deviation of the reference piece when the reel is rotated is reduced. Therefore, the reference piece and the reference piece detecting section can be more easily aligned with each other. Accordingly, the accurate position of the reference piece with respect to the reference piece detection unit can be ensured, and, for example, contact between the reference piece and the reference piece detection unit can be prevented. Further, by facilitating the positional accuracy, the assembling becomes easier, so that the assembling cost can be reduced.

Secondly, the reference piece detecting section is fixed to the backlight section. Therefore, since the reference piece detection unit is not attached to the attachment plate to which the drive unit is attached, the structure of the attachment plate can be simplified and the rigidity of the attachment plate can be secured. As a result, it is possible to prevent the mounting plate from resonating when the driving unit is driven. Further, since the reference piece detection unit is not provided inside the drive unit such as the motor, the size of the drive unit is not increased and the cost is not increased. Further, when the reference piece detecting portion is fixed to the backlight portion, if it is formed in a shape that can be attached only by screwing or the like, the number of parts of the reel unit can be reduced.

According to a second aspect of the present invention, a reel in which a plurality of types of symbols are displayed on the outer peripheral surface, a drive portion for rotationally driving the reel, and an inner peripheral side of the reel are arranged. A backlight unit that illuminates the symbols displayed on the outer peripheral surface of the reel from behind, a reference piece that is rotated together with the reel, and a reference position in the rotation direction of the reel. A reel unit comprising a reference piece detection unit for detecting passage of the reference piece, wherein the reference piece is an independent member that is a member separate from the reel, and is detachably attached from the reel. The reference piece detection unit is fixed to the backlight unit.

In the invention of claim 2, firstly, the reference piece is an independent member which is a member separate from the reel,
It is formed so that it can be separated from the reel. Therefore, for example, when the ball game machine or the slot machine provided with the reel unit is disposed of, the reference piece can be taken out, so that the reference piece can be reused for a new ball game machine or slot machine. It will be possible. When the reference piece is integrally formed on the reel, the outer peripheral surface of the reel is provided with a pattern by printing or the like, so that the reel can hardly be reused for a new ball game machine, slot machine, or the like. .
Further, if the reference piece is damaged, only the reference piece needs to be replaced, and it is not necessary to replace the entire reel. Therefore, even if the reference piece is damaged during assembly or the like, the cost can be minimized.

Furthermore, secondly, as in claim 1,
The reference piece detection unit is fixed to the backlight unit. Therefore, since the reference piece detection unit is not attached to the attachment plate to which the drive unit is attached, the structure of the attachment plate can be simplified and the rigidity of the attachment plate can be secured.
As a result, it is possible to prevent the mounting plate from resonating when the driving unit is driven. Further, since the reference piece detection unit is not provided inside the drive unit such as the motor, the size of the drive unit is not increased and the cost is not increased. Further, when the reference piece detecting portion is fixed to the backlight portion, if it is formed in a shape that can be attached only by screwing or the like, the number of parts of the reel unit can be reduced.

[0019]

DETAILED DESCRIPTION OF THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. In the following embodiments, the reel unit of the present invention is applied to a ball game machine. (First Embodiment) FIG. 1 is a front view showing an example in which the reel unit 20 of the first embodiment is attached to a game board 1 of a ball game machine. As shown in FIG. 1, a game board 1 is provided with rails (inner reel and outer reel) 2 for guiding a game ball launched from a launching device (not shown) to a game area 3.
Inside the symbol variation display device 10, a specific winning opening 4 which is the variation start condition of the symbol of the symbol variation display device 10, the combination of the symbols displayed by the symbol variation display device 10 is a predetermined stop mode, For example, as in AA-A, there are arranged a large winning opening 6 and a general winning opening 5 that allow the hit ball to be opened when the A symbols are aligned.

Here, the game outline of the ball game machine of the present embodiment will be briefly described. First, when a game machine is driven by a player's operation to enter a game ball into the game area 3, the game ball contacts a windmill, a nail, or the like (not shown) and changes its falling direction, while the winning hole (specification The winning opening 4 or the like) is sent to the outlet 7. When a game ball is won in the winning opening, a predetermined number of prize balls are paid out from a payout device (not shown).

In addition, when the specific winning opening 4 is won,
In addition to the payout of prize balls, a game is displayed in which the symbols displayed on the symbol variable display device 10 are displayed in a fixed manner and then stopped and displayed. Then, as a result of this game, that is, when the combination of symbols displayed in a stopped state becomes a predetermined combination of symbols, the special winning opening 6 is opened, and a jackpot game in which it is easy to give a profit to the player is performed. .

Next, the symbol variation display device 10 and the reel unit 20 will be described. Design variation display device 10
As shown in FIG. 1, is composed of a transparent display window 11 and a plurality of reel units 20 arranged behind the display window 11. In this embodiment, the reel units 20 are arranged in three rows (left reel unit 20,
The middle reel unit 20 and the right reel unit 20) are arranged side by side and housed in a case. In the following description, the reel unit 20 will be described using the left reel unit 20.

FIG. 2 is a front view (partially sectional view) showing an essential part of the reel units 20 arranged side by side, in which the right reel unit 20 is omitted. Further, in FIG. 2, a part of the reel 21 is cut so that the internal structure can be seen, and further, inside the reel 21 on the left side,
The partial cross section of an internal structure is shown. In addition, FIG.
It is a figure which expands and shows a partial cross section of the internal structure of the left reel unit 20 inside.

FIG. 4 is a side view (partially sectional view) of the reel unit 20. Furthermore, FIG.
It is a figure which shows the positional relationship of the reference | standard piece 26a and the sensor 41 in detail inside. Further, FIG. 6 shows a reel unit 20.
FIG. 9 is an exploded perspective view showing the reel 21, the motor 22, and each member mounted between them.

As shown in FIG. 6, the reel unit 20 includes a motor 22 and a mounting plate 23 for fixing the motor 22.
The reel boss 24, the reference piece forming member 26, the reel 21, and the backlight section 30. The reel 21 is formed in a ring shape, and a plurality of types and a predetermined number of symbols are arranged at predetermined intervals on the outer peripheral surface thereof (see FIG. 15). The design is formed by printing or the like. As shown in FIGS. 4 and 6, the reel 21 has an outer ring portion 21a that constitutes an outer peripheral surface and a flange portion 21b that is a central portion that is connected to the motor 22. A plurality of (eight in this embodiment) arm portions 21c extending in the same direction and arranged at substantially equal angles in the rotation direction of the reel 21 are connected.

The motor 22 corresponds to the drive unit in the present invention, and is for rotating the reel 21. The motor 22 is fixed to the mounting plate 23 and is arranged on the inner peripheral portion of the reel 21.
The rotating shaft 22a of the motor 22 has a substantially D-shaped cut surface (hereinafter referred to as a D-cut shape) when cut along a surface perpendicular to the axial direction.

The reel boss 24 is used for the rotary shaft 2 of the motor 22.
It is fixed to 2a. As shown in FIG. 3, a hole 24 is formed in the center of the surface of the reel boss 24 facing the motor 22.
a is formed, and this hole 24a is formed in a D-cut shape. Then, by inserting the rotary shaft 22a of the motor 22 into the hole 24a, the rotary shaft 2 of the motor 22
The reel boss 24 is attached to 2a. Further, as shown in FIG. 3, the reel boss 24 makes the rotation shaft 22 of the motor 22.
After being attached to a, the screw 25 is attached to the screw hole 24b formed in a part of the side surface of the reel boss 24 so as to be screwed and fixed. Further, on the side of the reel boss 24 opposite to the side where the rotary shaft 22a of the motor 22 is attached, a cylindrical portion 24c having a D-cut shape (see FIG. 6).
See).

As shown in FIG. 6, the reference piece forming member 26 has a reference piece 26a on a part of the outer peripheral side surface of a substantially disk-shaped base body.
Is integrally formed. The reference piece 26a is detected by a sensor 41 described later, and the reference position in the rotation direction of the reel 21 is detected by the detection of the reference piece 26a.

A hole 26b having a D-cut shape is formed in the center of the reference piece forming member 26, and the hole 26b is formed.
And the cylindrical portion 24c of the reel boss 24 having the D-cut shape are fitted to each other. Then, the cylindrical portion 2 of the reel boss 24 is inserted into the hole 26b of the reference piece forming member 26.
The both are fitted by the entry of 4c. In addition,
When the tubular portion 24c of the reel boss 24 is inserted into the hole 26b of the reference piece forming member 26, the tubular portion 24c becomes the reference piece forming member 2
6 through the holes 26b and project from the outer surface of the reference piece forming member 26.

A flange portion 24d is formed on the outer peripheral surface of the reel boss 24 at a substantially central position in the axial direction.
As shown in FIG. 3, the flange portion 24d and the engaging portion 26j in which the reference piece forming member 26 has a substantially concave cross section are fitted to each other. Further, as shown in FIG. 3, in the flange portion 21b of the reel 21, an engagement portion 21f having a substantially concave cross section is formed on the side where the motor 22 is attached, and the engagement portion 21f and the reel boss 24 are formed. The tubular portion 24c is fitted.

Further, as shown in FIG. 6, at the center of the flange portion 21b of the reel 21 (center of rotation of the reel 21),
A through hole 21d is formed. A screw hole 24e is formed in the cylindrical portion 24c of the reel boss 24. Then, as shown in FIG. 3, the hole 21d of the reel 21
A screw 27 is inserted into the screw, and the screw 27 and the screw hole 24e of the reel boss 24 are screwed.

As a result, the reference piece forming member 26 and the reel 21 are fixed to the reel boss 24 fixed to the motor 22. As described above, when the rotary shaft 22a of the motor 22 rotates, the reel boss 24, the reference piece forming member 26, and the reel 21 that are fixed to and integrated with the rotary shaft 22a rotate.

The reel unit 20 includes a reel 2
The backlight unit 30 is provided for illuminating the symbol 1 from the back and for blinking and extinguishing when outputting various effects (see FIGS. 4 and 6). The backlight unit 30 is arranged on the inner peripheral side of each reel 21, and is fixed to the mounting plate 23.

As shown in FIGS. 4 and 6, the backlight section 30 includes a lamp case 38 and a sensor mounting section 31 which are integrally formed on a plate-shaped backlight pedestal 37, respectively. The lamp case 38 is for mounting a lamp board (not shown) on which a lamp is mounted. Here, in the present embodiment, three lamps are arranged side by side on the lamp board, and in order to illuminate three symbols which are continuous from above and below the reel 21 which are seen from the display window 11, respectively, behind the positions of these symbols. The lamps are arranged so as to be arranged.

Further, as shown in FIGS. 4 and 6, the sensor mounting portion 31 has an eaves-like shape, and the backlight pedestal 3 is provided.
It is provided on the upper part of 7. Furthermore, the reel unit 20 includes a sensor substrate 40 (corresponding to a reference piece detection unit in the present invention) having a sensor 41 for detecting the reference piece 26a. The sensor substrate 40 is screwed to the sensor mounting portion 31. The sensor 41 is
As shown in FIGS. 2 and 6, the optical sensor is formed in a concave shape and includes a light emitting element and a light receiving element on the inner wall side thereof.

Further, the sensor board 40 has the sensor mounting portion 31.
2 and 5, the positional relationship between the sensor 41 and the reference piece forming member 26 is as shown in FIGS. That is, when the reference piece forming member 26 is rotated along with the rotation of the motor 22, the reference piece 26a is arranged so as to pass between the light emitting / receiving elements (inside of the concave shape) of the sensor 41. As a result, once every time the reel 21 makes one rotation,
The reference piece 26a comes to pass the sensor 41.

In the reel unit 20 having the above structure, the reference piece forming member 26 and the reel 21 are rotated by the rotation of the motor 22 as described above. When the reference piece forming member 26 rotates, the reference piece 26 a passes the sensor 41 every time the reel 21 makes one rotation. Sensor 41
Detects the reference piece 26a. When the reference piece 26 a does not exist between the concave portions of the sensor 41 (the reference piece 26 a
When a is not passing), the light emitted from the light emitting element of the sensor 41 can be received by the light receiving element. However, when the reference piece 26a is passing through the sensor 41, Since the emitted light is blocked by the reference piece 26a, it does not enter the light receiving element. When the emitted light cannot be detected, it is determined that the reference piece 26a has passed.

The sensor 41 may be a magnetic sensor or a contact type sensor other than the optical sensor shown in this embodiment. When a magnetic sensor is used, for example, a magnetic body is attached to the reference piece forming member 26 or the reference piece forming member 26 is magnetized so that the reference piece forming member 26 has magnetism.
It may be formed of a magnetic material. When the contact type sensor is used, the reference piece forming member 26 is the sensor 41.
It is sufficient to form the reference piece forming member 26 and the sensor 41 so that at least a part thereof comes into contact with each other when passing through.

Therefore, if the reference piece 26a is set at the reference position (home position) in the rotation direction of the reel 21, this reference position can be detected. Further, by detecting the reference position and counting the number of rotation pulses of the motor 22, it is possible to determine to what position the reel 21 has been rotated from the reference position.
Then, if the number of rotation pulses of the motor 22 after detecting the reference position and the symbol displayed on the outer peripheral surface of the outer ring portion 21a of the reel 21 are stored in association with each other, the position of the symbol can be determined. You can

Further, in the present invention, the reference piece 26a is the rotation center and the outer end of the reel 21 in the radial direction of the reel 21 (the radial direction perpendicular to the axial direction of the reel 21) (the outer peripheral surface on which the symbol is displayed). It is arranged at least on the side of the center of rotation from the midpoint between and. In particular, it is preferable to dispose the reference piece 26a near the center of rotation of the reel 21.

Although the first embodiment of the present invention has been described above, the following effects can be expected in the first embodiment. In the present embodiment, the reference piece 26a is provided near the rotation center of the reel 21.
Are arranged, the peripheral speed of the reference piece 26a becomes slower than in the case where the reference piece 101a is provided on the inner circumference of the outer ring portion of the reel 101 as in the conventional case (FIG. 26). Therefore, even when the rotation speed of the motor 22 is increased while utilizing the conventional sensor configuration, the reference piece 26a can be reliably detected.

Further, since the reference piece 26a revolves around a position near the rotation shaft 22a of the motor 22, the reference piece 101a is provided on the inner circumference of the outer ring portion of the reel 101 far from the rotation axis of the motor 102 as in the conventional case. The deviation of the reference piece 26a in the left-right direction is reduced as compared with the case where the reference piece 26a is provided. Therefore, it is not necessary to attach the sensor 41 more precisely than in the conventional case, and not only the number of assembly steps of the reel unit 20 can be expected to be reduced, but also the reference piece 26 that is not required to be assembled.
It is possible to reduce the possibility of damage to the sensor a and the sensor 41.

Further, in the present embodiment, the reference piece 26a is formed separately from the reel 21, so that it is conventional (FIG. 26).
Like a reference piece 101a on the inner circumference of the outer ring portion of the reel 101
It becomes easier to set the mounting position of the sensor 41 to an arbitrary place as compared with the case where the sensor is provided.

Further, in this embodiment, the sensor substrate 40
Is not attached directly to the mounting plate 23 that fixes the motor 22, but is attached (fixed) to the backlight unit 30 side. Therefore, the sensor 104 is attached to the mounting plate 103 as in the prior art (FIG. 26). The structure of the mounting plate 23 can be simplified and the rigidity can be easily ensured as compared with the above.

(Second Embodiment) FIGS. 7 and 8 are views showing a second embodiment of the present invention. FIG. 7 is an exploded perspective view showing a main part of the second embodiment, and FIG. 8 is a reel 21A.
It is a front view (partially sectional view) which cuts and shows a part of outer ring part 21a so that the inside of can be seen. In the second embodiment, a member corresponding to the member of the first embodiment and different from the first embodiment is denoted by reference numeral “A”.

In the first embodiment, the reference piece forming member 26.
Was sandwiched between the reel boss 24 and the reel 21, and the reel 21 and the reel boss 24 were screwed with the screw 27 to fix the reference piece forming member 26. On the other hand, in the second embodiment, the reference piece forming member 26A is directly screwed to the reel 21A. As shown in FIG. 7, two through holes 26c are formed in the reference piece forming member 26A. As shown in FIG. 8, the surface of the through hole 26c facing the reel 21A has a boss shape.

Further, the flange portion 21b of the reel 21A
Has a screw hole 21e formed therein. When the reference piece forming member 26A is attached to the reel 21A,
The reference piece forming member 26A is attached to the flange portion 21 of the reel 21A.
b, and further screw 51 to the reference piece forming member 26.
It is inserted into the through hole 26c of A and screwed into the screw hole 21e.

A boss portion 26d is formed at the center of the reference piece forming member 26A. This boss 26d
The outer shape corresponds to the reel boss 24 shown in the first embodiment. That is, the outer shape of the central portion of the reference piece forming member 26A is the outer shape including the reel boss 24 in the central portion of the reference piece forming member 26 when the reference piece forming member 26 and the reel boss 24 are fitted in the first embodiment. Equivalent to.

A screw hole 26e corresponding to the screw hole 24b formed in the reel boss 24 of the first embodiment is formed in the boss portion 26d, and this screw hole 26e is formed as in the first embodiment. By attaching the screw 25 to the, it is screwed to the rotating shaft 22a of the motor 22,
It is fixed. If formed as described above, the number of parts of the reel boss 24 in the first embodiment can be reduced.

(Third Embodiment) FIGS. 9 and 10 are views showing a third embodiment of the present invention. FIG. 9 is a side view showing the vicinity of the flange portion 21b of the reel 21B, which is an essential part of the third embodiment, and FIG. 10 is shown by cutting a part of the outer ring portion 21a so that the inside of the reel 21B can be seen. It is a front view (partial sectional view). In the third embodiment, a member corresponding to the member of the first embodiment and different from the first embodiment is denoted by reference numeral “B”.

In the first embodiment (similarly to the second embodiment), the reference piece forming member 26 is formed separately from the reel 21. However, in the third embodiment, the reference piece forming member 26B is integrally formed with the flange portion 21b of the reel 21B. The reference piece forming member 26B of the third embodiment is the first
Unlike the reference piece forming member 26 of the embodiment, it does not have a disc-shaped base body, but has an annular outer ring portion 26f, and a reference piece 26a is formed in a part thereof. Therefore, the length of the reference piece 26a is longer than that of the reference piece 26a of the first embodiment, but the distance from the center of rotation to the tip of the reference piece 26a is the same as that of the first embodiment. is there. In addition, the sensor 41
Is the same as the sensor 41 of the first embodiment. As shown in FIG. 10, since the length of the reference piece 26a is increased, a rib is provided on one surface side of the reference piece 26a to prevent it from collapsing during molding.

Further, in the third embodiment, when the reel 21B and the reference piece forming member 26B are integrally formed by molding, a molding die which is divided in the rotation axis direction of the reel 21B is used. Considering the dividing direction of the molding die, the reference piece forming member 26a is arranged between the arm portions 21c of the reel 21B.

When the reference piece forming member 26B is formed as in the third embodiment, the reference piece forming member 26B and the reel 21B are integrated so that the number of parts unique to the reference piece forming member 26B can be reduced. Further, even when they are integrally formed, the reference piece forming member 26B can be arranged in the vicinity of the reel 21B as shown in the present embodiment.

(Fourth Embodiment) FIGS. 11 and 12 are views showing a fourth embodiment of the present invention. FIG. 11 is an exploded perspective view showing a main part of the fourth embodiment, and FIG. 12 is a front view (partially sectional view) showing a part of the outer ring part 21a so that the inside of the reel 21 can be seen. Is. In the fourth embodiment, a member corresponding to the member of the first embodiment and different from the first embodiment is denoted by reference numeral “C”.

In the fourth embodiment, the reference piece forming member 26C.
Equipped with. The reference piece forming member 26C is different from the reference piece forming member 26 of the first embodiment in that the reference piece forming member 26C includes a tubular portion 26g. That is, the reference piece forming member 2 of the first embodiment
As shown in FIG. 6 and the like, 6 has a substantially disk-shaped base body, and a reference piece 26a is provided on a part of the outer peripheral side surface thereof. On the other hand, in the reference piece forming member 26C of the fourth embodiment, the tubular portion 26g extending from the base body of the reference piece forming member 26 of the first embodiment in the rotation axis direction is provided. A reference piece forming member 26a is integrally formed at the lower end of the tubular portion 26g.

As shown in FIG. 12, the cylindrical portion 26g has a size capable of accommodating the motor 22 therein.
The reel boss 24 has the same shape as that of the first embodiment and is attached at the same position as that of the first embodiment. Further, in the first embodiment, the sensor board 40 is attached to the sensor attachment portion 31 of the backlight portion 30 and the backlight portion 30 is attached to the attachment plate 23. On the other hand, in the fourth embodiment, the sensor substrate 40
Are directly attached to the flat surface of the attachment plate 23.

As described above, in the fourth embodiment, the reference piece 2
6a is arranged near the mounting plate 23. And
The length of the tubular portion 26g is set so that the reference piece 26a is located between the light emitting and receiving elements of the sensor 41 when the sensor substrate 40 is directly attached to the attachment plate 23. If formed as described above, the sensor substrate 40 can be directly attached to the attachment plate 23, so that
Since it is not necessary to form the sensor mounting portion 31, the shape of the backlight portion 30 can be simplified.

(Fifth Embodiment) FIGS. 13 and 14 are views showing a fifth embodiment of the present invention. FIG. 13 is an exploded perspective view showing a main part of the fifth embodiment, and FIG.
It is a side view which shows the relationship between the reference | standard piece formation member 26D and sensor 41D of embodiment. In the fifth embodiment, a member corresponding to the member of the first embodiment and different from the first embodiment is denoted by reference numeral “D”.

In the fifth embodiment, the reference piece forming member 26D.
Equipped with. The reference piece forming member 26D is different from the reference piece forming member 26 of the first embodiment in that, firstly, the length of the reference piece 26a is different. The reference piece 26a of the fifth embodiment is formed longer than that of the first embodiment.

In addition to the reference piece 26a, a position detection piece 26h is provided on the outer peripheral side surface of the reference piece forming member 26D. In this embodiment, nine position detecting pieces 26h are provided at intervals of 36 degrees in the rotation direction. Further, the distance between the reference piece 26a and the position detecting piece 26h in the rotation direction is also set to 36 degrees. That is, one reference piece 26a and nine position detection pieces 26h are arranged at intervals of 36 degrees on the outer peripheral side surface of the reference piece forming member 26D. Furthermore, the length of the position detection piece 26h is formed shorter than the length of the reference piece 26a (about the length of the reference piece 26a of the first embodiment).

Further, the sensor substrate 40D is provided with a sensor 41D having a structure different from that of the first embodiment. The sensor 41D is a sensor 42 including a light emitting element and a light receiving element.
And 43 are arranged side by side. As shown in FIG.
The sensors 42 and 43 of the sensor 41D are formed to have different heights.

Further, as shown in FIG. 14A, the reference piece 26a is formed so as to pass through both the sensors 42 and 43. On the other hand, as shown in FIG. 6B, the position detection piece 26h is formed so as to pass the sensor 43 but not the sensor 42.

The sensor 42 has the same shape and function as the sensor 41 of the first embodiment, and detects the passage of the reference piece 26a to detect the reference position in the rotation direction of the reel 21. Further, the sensor 43 detects the position in the rotation direction of the reel 21 by detecting the reference piece 26a and the position detection piece 26h. here,
For example, ten symbols are displayed on the outer peripheral surface of the outer ring portion 21a of the reel 21, and the reference piece 2 is provided at a position corresponding to each symbol.
By arranging 6a or the position detection piece 26h, each symbol can be detected by the sensor 43. Further, similarly to the first embodiment, the reference position of the reel 21 can be detected together.

In this way, the position of the symbol can be detected by detecting the reference piece 26a and the position detecting piece 26h, so that the number of rotation pulses of the motor 22 is counted as in the first embodiment. It is possible to detect the symbol on the reel 21 without any trouble. In this embodiment,
Since ten symbols are arranged on the reel 21, a total of ten reference pieces 26a or position detection pieces 26h are provided. However, the number and arrangement intervals of the position detection pieces 26h may be set according to the number of symbols. That is, when changing the number of symbols on the reel 21, it is sufficient to replace the reference piece forming member 26D having the position detection pieces 26h by the number of symbols.

FIG. 15 is a front view showing a comparison of reel position detection between the first embodiment and the fifth embodiment. In the figure,
The left reference piece 26a and the sensor 41 are those of the first embodiment, and the right sensor 41D and the reference piece 26a and the position detection piece 26h are those of the fifth embodiment. Figure 1
As shown in FIG. 5, symbols “B”, “A”, “P”, and “O” are displayed as the four symbols on the reel 21. Of these, the symbol “A” is set as the reference position.

In this case, in the first embodiment, the reference piece 2
When 6a passes the sensor 41, the reference position of the reel 21 (the position of the symbol "A") is detected. Further, in the fifth embodiment, the sensor 42 of the sensor 41D is arranged at the position where the sensor 41 of the first embodiment is arranged. Then, when the reference piece 26a passes the sensor 42, the reference position of the reel 21 (the position of the symbol "A") is detected. Further, a position detection piece 26h is arranged at a position corresponding to the symbols "B" and "P" (in FIG. 15, the position detection piece 26h corresponding to the symbol "O" is omitted). . Then, when the reference piece 26a or the position detection piece 26h passes the sensor 43, the position (the position of each symbol) in the rotation direction of the reel 21 is detected.

(Sixth Embodiment) FIGS. 16 and 17 are views showing a sixth embodiment of the present invention. FIG. 16 is a perspective view showing a sensor substrate 40E having a sensor 41E of the sixth embodiment, and FIG. 17 is a side view showing the relationship between the reference piece forming member 26E and the sensor 41E of the sixth embodiment.
In the sixth embodiment, a member corresponding to the member of the first embodiment and different from that of the first embodiment is denoted by reference numeral “E”.

The sixth embodiment is a modification of the fifth embodiment, and like the fifth embodiment, the symbol position is detected in addition to the reference position of the reel 21. Sixth
In the embodiment, the sensor substrate 40E shown in FIG. 16 is provided. The sensor board 40E includes a sensor 41E in which two sensors 42 shown in the fifth embodiment are arranged side by side. That is, in the sixth embodiment, unlike the fifth embodiment, two sensors 42 having the same shape are provided.

Further, in the sixth embodiment, a reference piece forming member 26E is provided. The reference piece forming member 26E is the reference piece 26.
a and a position detection piece 26i. Position detection piece 26
i corresponds to the position detection piece 26h of the fifth embodiment.

Furthermore, the lengths of the reference piece 26a and the position detection piece 26i are almost the same as those of the reference piece 26a of the first embodiment. Furthermore, the reference piece 26a and the position detection piece 26i
Is the reference piece 26a and the position detection piece 26h of the fifth embodiment.
It is located in the same position as. That is, the reference piece 26a and the position detection piece 26i are provided at equal intervals of 36 degrees in the rotation direction of the reference piece forming member 26E.

Further, the reference piece 26a has substantially the same width as the reference piece 26a of the first embodiment, but the position detecting piece 2a
The horizontal width of 6i is about half the horizontal width of the reference piece 26a and the position detection piece 26h of the fifth embodiment.

In FIG. 17A, the reference piece forming member 2
Assuming that 6E is rotating counterclockwise in the figure,
When the reference piece 26a passes the sensor 41E, the sensor 42 on the right side first detects the reference piece 26a. When the reference piece forming member 26E further rotates, the left sensor 42
Detects the reference piece 26a. Here, the left sensor 42
When the sensor 42 on the right side still detects the reference piece 26a when it detects the reference piece 26a, it is determined that the reference piece 26a is detected instead of the position detection piece 26i.

On the other hand, as shown in FIG.
When the position detection piece 26i passes the sensor 41E,
The sensor 42 on the right side first detects the position detection piece 26i, but the position detection piece 26i does not enter the sensor 42 on the left side while the position detection piece 26i passes through the sensor 42 on the right side. The sensor 42 is a position detecting piece 26i
Does not detect. Further, the reference piece forming member 26E rotates counterclockwise in the figure, and the position detecting piece 26i causes the left sensor 4 to move.
When passing 2, the position detection piece 26i is located outside the right sensor 42. Therefore, the left sensor 4
When 2 detects the position detection piece 26i, the right sensor 42 does not detect the position detection piece 26i.

Thus, the position detecting piece 26i is detected by only one of the sensors 42 when passing through the sensor 41E. Thus, the right sensor 42
Is not detected by the left sensor 42,
Further, when the left sensor 42 is detecting and the right sensor 42 is not detecting, it is determined that the position detecting piece 26i is detected instead of the reference piece 26a.

In this way, the reference position of the reel 21 can be detected by detecting the reference piece 26a. Further, by detecting either the reference piece 26a or the position detection piece 26i, the position of the reel 21 in the rotation direction can be detected, as in the fifth embodiment. Further, similarly to the fifth embodiment, the sensor 41
By the detection by E, each symbol can be detected.

(Seventh Embodiment) FIG. 18 shows a seventh embodiment of the present invention.
It is a figure which shows embodiment and is a perspective view which decomposes | disassembles and shows the sensor board 40F and the backlight part 30F. In addition, in the seventh embodiment, a member corresponding to the member of the first embodiment and different from the first embodiment is denoted by reference numeral “F”.
Is attached.

As shown in FIG. 18, the backlight unit 30
A sensor attachment member 32 is attached to F. The sensor mounting member 32 has an upper wall and a side wall, and the outer shape is substantially L-shaped, and the side wall side is screwed to the backlight unit 30F. On the side wall of the sensor mounting member 32,
An oval through hole 32b and an arcuate through hole 32c are formed. Further, a screw hole 34 is formed on the surface of the backlight unit 30F on which the sensor mounting member 32 is mounted.
(See FIG. 19) are formed. Then, the screws 3 are respectively inserted in the through holes 32b and 32c of the sensor mounting member 32.
The sensor mounting member 32 is fixed to the backlight portion 30F by inserting 3 and screwing it into the screw hole 34.
Further, an elongated hole (through hole) 32a is formed in the upper wall of the sensor mounting member 32 along the longitudinal direction of the upper wall (the rotation axis direction of the reel 21).

A pressing plate 35 is arranged on the upper surface of the upper wall of the sensor mounting member 32. The pressing plate 35 is
The cross section is formed into a substantially reverse concave shape, and the upper wall of the sensor mounting member 32 is housed in the reverse concave shape. Further, the pressing plate 35 is formed with a concave cutout portion 35b. Further, a through hole 35 a is formed in the upper wall of the pressing plate 35.

A sensor board 40F is arranged on the lower surface side of the upper wall of the sensor mounting member 32. Sensor board 4
The board surface of 0F is formed to be larger than that in the first embodiment, and a convex portion is provided in a part thereof, and the connector 45 is mounted on the convex portion.

When the pressing plate 35 is attached to the upper side of the upper wall of the sensor mounting member 32 and the sensor board 40F is attached to the lower side thereof, the connector 45 of the sensor board 40F is placed outside the upper wall of the sensor mounting member 32. And is housed in the cutout portion 35b of the pressing plate 35. Further, the through hole 35a of the pressing plate 35, the elongated hole 32a of the sensor mounting member 32, and the screw hole 44 of the sensor substrate 40F are arranged at positions overlapping in the vertical direction. Then, the screw 36 is passed through the through hole 35a and the long hole 32a, and is screwed into the screw hole 44,
Presser plate 35, sensor mounting member 32, and sensor substrate 4
0F is fixed.

In the seventh embodiment, the position of the sensor 41 can be adjusted. First, the position of the sensor 41 in the rotation axis direction of the reel 21 can be adjusted. 19 and 20 show the reel 21 in the seventh embodiment.
20 is a view for explaining the position adjustment of the sensor 41 in the rotation axis direction of FIG. 19, FIG. 19 is a side view, and FIG. 20 is a plan view (partially sectional view).

As described above, when the screw 36 is screwed into the screw hole 44, the pressing plate 35 and the sensor mounting member 32 are attached.
The sensor board 40F is fixed, but if the screw 36 is loosened, the sensor board 40F slides along with the pressing plate 35 along the longitudinal direction of the upper wall of the sensor mounting member 32. This is because the screw 36 can move along the elongated hole 32a in the elongated hole 32a of the sensor mounting member 32.

As a result, as shown in FIGS. 19 and 20, in addition to the position shown by the solid line, the sensor substrate 40F and the pressing plate 35 are connected in the longitudinal direction of the upper wall of the sensor mounting member 32 as shown by the chain double-dashed line. Can be moved along. Then, by screwing the screw 36 at an appropriate position where the reference piece 26a has entered the sensor 41 (for example, the reference piece 26a is located in the center of the sensor 41) (FIG. 1).
9), the sensor 41 can be fixed to the reference piece 26a at an appropriate position. In this way, reel 2
The position of the sensor 41 with respect to the reference piece 26a can be adjusted in the direction of the first rotation axis. If the elongated hole 32a is formed as in the present embodiment, the sensor 41 can be continuously changed.
The position of the sensor 41 can be adjusted, but the position of the sensor 41 can also be adjusted in multiple steps by arranging a plurality of through holes instead of the elongated hole 32a as shown by the dotted line in FIG.

Second, in the seventh embodiment, secondly, the sensor 4 in the rotation direction of the motor 22, that is, the reel 21 is used.
The position of 1 can be adjusted. 21 is a cross-sectional view taken along the line AA of FIG. In FIG. 21, the sensor 41 is shown by being cut from the middle. Through holes 32b and 32c are formed in the side wall of the sensor mounting member 32 as described above, and the sensor mounting member 32 is screwed to the backlight unit 30F by the screw 33 through the through holes 32b and 32c. .

Here, when the two screws 33 are loosened, the sensor mounting member 32 can be moved in the arrow direction in FIG. 21 within the movable range of the through holes 32b and 32c. Therefore, the sensor mounting member 32 can be screwed to a desired position within this range. As a result, the position of the sensor 41 can be adjusted in the rotation direction of the reel 21. Although not shown, if the through holes 32b and 32c are formed by arranging a plurality of holes in parallel, the position of the sensor 41 can be adjusted in multiple steps as in the above.

(Eighth Embodiment) FIGS. 22 and 23 are views showing an eighth embodiment of the present invention. 22 is a side view (partially sectional view) viewed in the rotation axis direction of the motor 22G, and FIG. 23 is a front view (partially sectional view) showing the front side of FIG. 22 in an exploded manner. . In the eighth embodiment, a member corresponding to the member of the first embodiment and different from that of the first embodiment is denoted by reference numeral “G”.

The eighth embodiment is a modification of the seventh embodiment, and the position of the sensor 41 in the rotation direction of the reel 21 can be adjusted as in the seventh embodiment. The structure is different. FIG. 22
Also, as shown in FIG. 23, a sensor attachment member 32G is provided in the eighth embodiment. Sensor mounting member 3
The 2G has an upper wall and a side wall as in the seventh embodiment, has an outer shape of a substantially L shape, and the side wall side is screwed to the mounting plate 23G.

Here, the shape of the side wall of the sensor mounting member 32G is different from that of the seventh embodiment, and the shape of the upper wall is the same as that of the seventh embodiment. In addition, the sensor substrate 40 of the eighth embodiment
G has the same shape as the sensor substrate 40F of the seventh embodiment, and is attached to the upper wall of the sensor attachment member 32G by the pressing plate 35. Then, similarly to the seventh embodiment, the position of the sensor 41 can be adjusted by sliding the sensor substrate 40G in the rotation axis direction of the reel 21.

Further, as shown in FIG. 22, the lower part of the side wall of the sensor mounting member 32G is formed in a circular shape, and a circular opening 32d is formed in the center thereof. Furthermore, a cylindrical boss 22b is formed on the surface of the motor 22G opposite to the surface on which the rotary shaft 22a is provided. The boss 22b and the opening 32d are formed so as to fit with each other.

Further, a circular opening 23a for allowing the boss 22b to penetrate is formed in a portion of the mounting plate 23G where the motor 22G is mounted. Motor 22G
When fixing the to the mounting plate 23G, while inserting the screw 53 into the through hole 23b formed in the mounting plate 23G,
The motor 22G is screwed into a screw hole (not shown) formed in the surface provided with the boss 22b.

Here, four washers 52 are attached to the surface of the motor 22G on which the boss 22b is provided.
Then, the screw 53 is screwed into the screw hole of the motor 22G via the through hole 23b and the washer 52. Further, the sensor mounting member 3 is attached to the boss 22b of the motor 22G.
The 2G opening 32d enters and the motor 22G
The tip of the boss 22b is screwed into the opening 23a of the mounting plate 23G.

Further, an arc-shaped through hole 32e similar to that of the seventh embodiment is formed in the side wall of the sensor mounting member 32G. Further, on the mounting plate 23G side, a screw hole 23c
Are formed. Then, by inserting the screw 33 into the through hole 32e and screwing the screw 33 into the screw hole 23c, the sensor mounting member 32G is fixed to the mounting plate 23G.

Here, when the screw 33 is loosened, the sensor mounting member 32G becomes rotatable about the boss 22b of the motor 22G within the movable range of the through hole 32e. Therefore, if the sensor mounting member 32G is rotated to adjust the mounting position of the sensor mounting member 32G to the mounting plate 23G, the position of the sensor 41 is adjusted in the rotation direction of the reel 21 as in the seventh embodiment. be able to.

24 and 25 are side views showing an example of adjusting the position of the sensor 41 in the rotation direction of the reel 21, and also show the symbols on the reel 21.
24 and 25, the reference piece 26a of the reference piece forming member 26 and the reel 21 are arranged in the radial direction of the reel 21.
It is assumed that the upper symbol "A" is set to be located on the same line.

FIG. 24 shows a state in which the reference piece 26a and the symbol "A" on the reel 21 are located on the same line in the radial direction of the reel 21. That is, in the radial direction of the reel 21, the line passing through the center of the reference piece 26 a of the reference piece forming member 26 passes through the center position of the symbol “A” on the reel 21. In this state, if the screw 33 is screwed so that the screw 33 is located substantially at the center in the longitudinal direction of the through hole 32e, and the sensor mounting member 32G is fixed to the mounting plate 23G, the symbol "A" is at the reference position. Sometimes, the reference piece 26a can be set to pass the sensor 41.

On the other hand, FIG. 25 shows an example in which the positions of the symbols on the reel 21 are displaced. In this case,
In the radial direction of the reel 21, a line passing through the center of the reference piece 26a of the reference piece forming member 26 does not pass through the center position of the symbol “A” on the reel 21. Therefore, the reference position of the reel 21 does not correctly match the position of the symbol "A".

In this case, as shown in FIG. 25, the screw 33 is loosened, and the sensor mounting member 32G is rotated clockwise in the drawing, and when the symbol "A" is at the reference position, the reference The piece 26a can be set to pass the sensor 41. Then, at this position, screw 33 again
You can screw it on.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and various modifications can be made. For example, although the first to eighth embodiments have been described as the embodiments, two or more of these can be appropriately selected and combined. Specifically, for example, the cylindrical portion 26g shown in the fourth embodiment may be provided with the reference piece 26a and the position detection piece 26h or 26i shown in the fifth or sixth embodiment.

[0099]

According to the invention of claim 1,
The reference piece can be detected more reliably by the reference piece detection unit. Further, since the reference piece and the reference piece detection unit can be more easily aligned with each other, an accurate position of the reference piece with respect to the reference piece detection unit can be ensured, for example, the reference piece and the reference piece detection unit. It is possible to prevent contact with. Further, since it is easy to secure the positional accuracy, the assembling becomes easy, so that the assembling cost can be reduced.

Furthermore, since the reference piece detecting portion is fixed to the backlight portion, not to the mounting plate for fixing the driving portion, the structure of the mounting plate can be simplified and the rigidity of the mounting plate can be improved. Can be secured. As a result, it is possible to prevent the mounting plate from resonating when the driving unit is driven and causing abnormal noise. Also,
Since the reference piece detection unit is not provided inside the drive unit such as the motor, the size of the drive unit is not increased and the cost is not increased. Further, when the reference piece detecting portion is fixed to the backlight portion, if it is formed in a shape that can be attached only by screwing or the like, the number of parts of the reel unit can be reduced.

(Claim 2) According to the invention of claim 2, it becomes possible to reuse the reference piece for a new ball game machine or slot machine. Further, if the reference piece is damaged, only the reference piece needs to be replaced, and it is not necessary to replace the entire reel. Therefore, even if the reference piece is damaged during assembly or the like, the cost can be minimized.

Furthermore, since the reference piece detecting portion is fixed to the backlight portion instead of the mounting plate for fixing the driving portion, the structure of the mounting plate can be simplified and the rigidity of the mounting plate can be improved. Can be secured. As a result, it is possible to prevent the mounting plate from resonating when the driving unit is driven and causing abnormal noise. Also,
Since the reference piece detection unit is not provided inside the drive unit such as the motor, the size of the drive unit is not increased and the cost is not increased. Further, when the reference piece detecting portion is fixed to the backlight portion, if it is formed in a shape that can be attached only by screwing or the like, the number of parts of the reel unit can be reduced.

[Brief description of drawings]

FIG. 1 is a front view showing an example in which the reel unit of the first embodiment is attached to a game board of a ball game machine.

FIG. 2 is a front view (partially sectional view) showing a main part of juxtaposed reel units, with the right reel unit omitted.

FIG. 3 is a more enlarged view of a partial cross section of the internal structure of the left reel unit in FIG.

FIG. 4 is a side view (partially sectional view) of the reel unit.

FIG. 5 is a diagram showing the positional relationship between the reference piece and the sensor in FIG. 4 in more detail.

FIG. 6 is an exploded perspective view showing a reel, a motor, and members mounted between them in the reel unit.

FIG. 7 is a diagram showing a second embodiment of the present invention, wherein
It is an exploded perspective view showing the important section of an embodiment.

FIG. 8 is a view showing a second embodiment of the present invention, and is a front view (partial cross-sectional view) showing a part of the outer ring portion so that the inside of the reel can be seen.

FIG. 9 is a diagram showing the third embodiment of the present invention,
FIG. 3 is a side view showing the vicinity of the flange portion of the reel, which is the main part of the embodiment.

FIG. 10 is a view showing the third embodiment of the present invention and is a front view (partially sectional view) showing a part of the outer ring portion so that the inside of the reel can be seen.

FIG. 11 is a view showing a fourth embodiment of the present invention and is an exploded perspective view showing a main part of the fourth embodiment.

FIG. 12 is a view showing the fourth embodiment of the present invention and is a front view (partially sectional view) showing a part of the outer ring portion so that the inside of the reel can be seen.

FIG. 13 is a view showing a fifth embodiment of the present invention and is an exploded perspective view showing a main part of the fifth embodiment.

FIG. 14 is a view showing the fifth embodiment of the present invention and is a side view showing the relationship between the reference piece forming member and the sensor of the fifth embodiment.

FIG. 15 is a side view showing a comparison of reel position detection between the first embodiment and the fifth embodiment.

FIG. 16 is a diagram showing a sixth embodiment of the present invention and is a perspective view showing a sensor substrate having a sensor of the sixth embodiment.

FIG. 17 is a view showing a sixth embodiment of the present invention and is a side view showing the relationship between the reference piece forming member and the sensor of the sixth embodiment.

FIG. 18 is a view showing a seventh embodiment of the present invention and is a perspective view showing a sensor substrate and a backlight unit in an exploded manner.

FIG. 19 is a side view for explaining the position adjustment of the sensor in the rotation axis direction of the reel in the seventh embodiment.

FIG. 20 is a plan view (partial cross-sectional view) for explaining the position adjustment of the sensor in the reel rotation axis direction in the seventh embodiment.

21 is a cross-sectional view taken along the line AA of FIG.

FIG. 22 is a view showing the eighth embodiment of the present invention and is a side view (partially sectional view) as seen in the direction of the rotation axis of the motor.
Is.

FIG. 23 is a view showing the eighth embodiment of the present invention and is a front view (partially sectional view) showing the front side of FIG. 22 in an exploded manner.

FIG. 24 is a side view showing an example of adjusting the position of the sensor in the rotation direction of the reel, and also showing the symbols on the reel.

FIG. 25 is a side view showing an example of adjusting the position of the sensor in the rotation direction of the reel, and also showing the symbols on the reel.

FIG. 26 is a schematic plan view (partially sectional view) showing a first example of a conventional method for detecting a reference position in the rotation direction of a reel.
Is.

FIG. 27 is a view for explaining the second example of the conventional method for detecting the reference position in the rotation direction of the reel, and is a schematic perspective view showing the internal structure of the motor.

[Explanation of symbols]

1 game board 2 guide rail 3 game area 4 specific winning opening 5 general winning opening 6 special winning opening 7 out opening 10 symbol variation display device 11 display window 20 reel unit 21, 21A, 21B reel 21a outer ring portion 21b flange portion 21c arm portion 21d hole 21e screw hole 21f engaging part 22, 22G motor (driving part) 22a rotating shaft 22b boss 23, 23G mounting plate 23a opening 23b through hole 23c screw hole 24 reel boss 24a hole 2 24b screw hole 24c tubular part 24d flange part 24e screw hole 25 screw 26, 26A, 26B, 26C, 26D, 26E reference piece forming member 26a reference piece 26b hole 26c through hole 26d boss portion 26e screw hole 26f outer ring portion 26g tubular portion 26h position detecting piece 26i position detecting piece 26j Engagement part 27 Screw 30, 30F Backlight part 31 Sensor 32, 32G sensor mounting member 32a elongated hole 32b through hole 32c through hole 32d opening 32e through hole 33 screw 34 screw hole 35 pressing plate 35a through hole 35b notch 36 screw 37 backlight pedestal 38 lamp case 40, 40D, 40E, 40F, 40G Sensor board (reference piece detection part) 41, 41D, 41E Sensor 42 Sensor 43 Sensor 44 Screw hole 45 Connector 51 Screw 52 Washer 53 Screw

Claims (2)

[Claims] 1. A reel in which a plurality of types of symbols are displayed on the outer peripheral surface, a drive unit for rotationally driving the reel, a symbol arranged on the inner peripheral side of the reel, and displayed on the outer peripheral surface of the reel. A backlight unit that illuminates from behind, a reference piece that rotates together with the reel, and a reference piece that detects passage of the reference piece when the reel rotates in order to detect a reference position in the rotation direction of the reel. A reel unit including a detector, wherein the reference piece is arranged at least on the rotation center side with respect to an intermediate point between a rotation center and an outer end of the reel in a radial direction of the reel, and the reference piece detection The reel unit is characterized in that the section is fixed to the backlight section. 2. A reel in which a plurality of types of symbols are displayed on the outer peripheral surface, a drive unit for rotationally driving the reel, a symbol arranged on the inner peripheral side of the reel, and displayed on the outer peripheral surface of the reel. A backlight unit that illuminates from behind, a reference piece that rotates together with the reel, and a reference piece that detects passage of the reference piece when the reel rotates in order to detect a reference position in the rotation direction of the reel. A reel unit including a detector, wherein the reference piece is made of an independent member that is a separate member from the reel, and is detachably attached from the reel. A reel unit characterized by being fixed to the light section.