JP4857016B2 - Rotating body drive device for gaming machine - Google Patents

Description

  The present invention relates to a rotating body driving device for a gaming machine including a rotating body in which identification information such as numbers and pictures is arranged on an outer peripheral surface.

  Conventionally, a rotating body with figures and pictures drawn on the circumference is rotated by the player's starting operation, then stopped by the player's stopping operation, and winning by matching the symbols at the time of stopping. The game machine to be determined is known (such as a pachinko machine or a slot machine). As a rotating body driving device for driving such a rotating body of a gaming machine, a motor mounted on a motor mounting plate is arranged in a casing (reel drum) of the rotating body in Patent Document 1 or the like, and the motor Describes a configuration in which the housing is directly attached to the drive shaft so that the drive shaft is the rotational shaft of the housing, and the rotation (number of rotations) of the motor is directly transmitted to the rotating body (direct drive). .

  However, in the structure as disclosed in Patent Document 1, since a large rotating body is directly connected to a motor as a driving source and driven, the motor outputs torque necessary for driving and braking the rotating body. Needs to be enlarged. As a result, a space for attaching components other than the motor to the rotating body driving device is reduced, and the cost of the motor increases and the overall weight also increases.

  Therefore, in Patent Document 2, etc., there is provided driving force transmission means that spans an endless belt between the rotating shaft of the rotating body and the driving shaft of the motor, and transmits the rotation of the motor to the rotating body through the endless belt. Thus, a configuration for increasing the degree of freedom in arranging the motor is described. Further, in Patent Document 2, a stepping motor is used as a motor, and the number of driving steps is controlled so that the design on the peripheral surface of the rotating body is accurately stopped at an appropriate position.

In the driving force transmission means disclosed in Patent Document 2, the motor speed can be reduced and transmitted to the rotating body, so that the motor can be downsized and its torque can be reduced. In addition, the cost of the motor can be reduced.
JP 2002-248199 A (see FIG. 4) Japanese Patent Laid-Open No. 2003-325730 (see FIGS. 4 and 6)

  However, if a motor with a small torque is used, when the drive source is started, the load on the rotating body is too large relative to the motor torque. In particular, in the case of a stepping motor, the rotation of the motor is controlled by the motor. There was a problem that a step-out that could not be synchronized with the pulse occurred, causing a problem in driving the rotating body.

  The present invention solves the above-described problem, and aims to reduce the size of a drive source for driving a rotating body of a gaming machine and to transmit the rotation of the driving source to the rotating body accurately and reliably. The object is to realize a rotating body drive device.

In order to achieve the above object, the rotating body drive device according to the first aspect of the present invention includes a rotating body in which identification information such as numerals and patterns is arranged on the outer peripheral surface, and a drive source for driving the rotating body. In the rotating body drive device of a gaming machine provided, a driving force for transmitting the rotation of the driving shaft of the driving source to the rotating shaft of the rotating body via an endless belt between the driving source and the rotating body. A transmission means is provided, and a disk member around which the endless belt is wound is attached to one end of the rotating shaft, and the disk member is fixed to the rotating shaft so as to rotate integrally with the rotating shaft. A first disk part; a second disk part around which the endless belt is wound and assembled coaxially with the first disk part; and a spring-like elastic body connected to the first disk part and the second disk part with the door, the first disk portion than the second disc portion The first disc portion is provided with a penetrating portion disposed on the tip side of the rotating shaft, and the surface of the first disc portion opposite to the second disc portion has the spring-like elasticity. A first locking piece for locking one end of the body projects, and the second disk part protrudes from the surface of the first disk part through the inside of the through part of the first disk part. A second locking piece for locking the other end of the spring-like elastic body, and when the tension of the endless belt is substantially constant during steady rotation of the drive source, the second disk portion is When the tension of the endless belt suddenly increases when the drive source is activated, the second disk portion extends the spring-like elastic body. Alternatively, the first disk portion is rotated through the spring-like elastic body while rotating in conjunction with the endless belt while being compressed. It is characterized in that rotates while following the second disk portion.

  According to a second aspect of the present invention, in the rotating body drive device for a gaming machine according to the first aspect, the second disk portion has an outer diameter smaller than an outer diameter of the first disk portion and the endless belt is wound around the second disk portion. And a large-diameter portion having an outer diameter larger than that of the small-diameter portion and disposed so as to face the first disk portion with the small-diameter portion interposed therebetween. is there.

According to a third aspect of the present invention, in the rotating body driving device for a gaming machine according to the first or second aspect , the driving source is disposed inside the rotating body with a driving shaft substantially parallel to the rotating shaft. The driving force transmitting means is arranged so that the rotational speed of the driving source is reduced and transmitted to the rotating body.

  According to the first aspect of the present invention, the driving force transmitting means for transmitting the rotation of the driving shaft of the driving source to the rotating shaft of the rotating body via the endless belt is provided, and the rotating shaft of the rotating body includes the endless belt. When a disk member is attached by connecting a second disk part around which the first disk part is wound and a first disk part fixed to the rotating shaft with a spring-like elastic body, and when the tension of the endless band suddenly increases when the drive source is activated, Since the second disk portion of the disk member can rotate in conjunction with the endless belt prior to the rotation of the entire rotating body, the load on the drive source is immediately reduced and the drive source is stabilized. Rotation can be started. Since the rotating body is provided so as to rotate integrally with the first disk portion, when the first disk portion follows the second disk portion via the spring-like elastic body, the rotating body also starts to rotate quickly.

  In addition, since the rotation of the drive shaft is transmitted to the rotating shaft of the rotating body using the driving force transmitting means, the drive source can be installed at an arbitrary position compared to the case where the drive shaft and the rotating shaft are directly connected. There is an effect that the degree of freedom of arrangement of the drive source is increased.

  According to invention of Claim 2, since the 1st disk part with a larger outer diameter than a small diameter part and the large diameter part are facing on both sides of the small diameter part around which an endless belt is wound, the 1st disk part The large-diameter portion has an effect of preventing the endless belt from falling off.

According to the first aspect of the present invention, the first locking piece and the second locking piece to which the spring-like elastic body is locked are formed so as to protrude toward the distal end side of the rotating shaft. The cylindrical elastic body can be disposed on the tip side of the rotating shaft, that is, on the surface side of the disk member, and it is easy to secure a space for arranging the spring-shaped elastic body.

According to the third aspect of the present invention, since the drive source is disposed so as to be accommodated inside the rotator, the entire rotator drive device can be made compact. In addition, since the driving force transmission means decelerates the rotational speed of the driving source and transmits it to the rotating body, the torque of the driving source can be reduced and the size can be reduced. Therefore, even when a drive source has a small torque, a rotating body with a large load can be stably rotated from the time of activation. In other words, since a small drive source can be adopted as the drive source accommodated in the rotator, the limited space in the rotator drive device can be used effectively for the arrangement of other components.

  Below, basic embodiment of this invention is described using FIGS. 1-7. The embodiment is applied to a rotating body drive device 10 mounted on a slot machine 100 as a gaming machine.

  As shown in FIGS. 1 and 2, the slot machine 100 includes a front panel 103 on the front surface of a box-shaped main body frame 102 on which various displays and switches are arranged. In the hollow interior of the main body frame 102, the rotating body driving device 10 of the present invention, the circuit board 105 including the control circuit, and the like are incorporated in the upper position, and the medal for storing a large number of medals in the lower position. A discharger 106 and the like are incorporated.

  Although details of the rotating body driving device 10 will be described later, the rotating body driving device 10 includes three rotating bodies 11 having a pattern on the peripheral surface (first rotating body 11a, sequentially from the left side in FIGS. 1 and 3). A second rotating body 11b and a third rotating body 11c). Then, the rotating body driving device 10 is placed on the mounting plate 107 arranged so as to be spanned in the frontage direction in the main body frame 102.

  On the front panel 103, a window 110 for displaying the three symbols continuous to the first rotating body 11a, the second rotating body 11b, and the third rotating body 11c to the outside, and rotation of each rotating body 11 is started. A starter 112 that is a lever or a switch, a medal slot 114, a medal payout port 116, a medal tray 118, and the player rotates the first rotating body 11a, the second rotating body 11b, and the third rotating body 11c. Are provided with stop buttons 121, 122, and 123, respectively. In addition to the case of manual stop based on the operation of these stop buttons 121 to 123, each rotary body 11 is stopped automatically by a changeover switch (not shown) (based on the operation of the starter 112, by a control circuit, a random number, etc.). Thus, the design to be displayed on the window 110 may be determined and automatically switched to a mode in which the rotating bodies 11 are sequentially stopped.

  Generally, a transparent member such as glass is used for the window part 110, and as shown in FIG. 1, a winning line is displayed horizontally and diagonally. The player first inserts one or more medals into the medal insertion slot 114 and then operates the starter 112 to start the rotation of the entire rotating body 11. Next, when the stop buttons 121 to 123 are pressed, the rotation of each rotating body 11 is stopped in an arbitrary order.

  The game is in a straight line according to the number of medals inserted (for example, one middle medal when three medals are inserted, three horizontal pay lines when two medals are inserted, and three medals when three medals are inserted. If a specific pattern is aligned on a total of 5 straight lines (3 horizontal winning lines and 2 diagonal winning lines), it will be a “role” or “hit” (bonus game or big bonus game). The game starts or a predetermined number of medals are discharged from the medal payout opening 116 to the medal tray 118. If the slot machine is set in the credit processing state instead of the medal discharge, the medal payout is a predetermined frequency (for example, 50) or until the end button on the front panel 103 is operated. The current credit level (corresponding to the number of medals) is displayed on a credit indicator (not shown) on the front panel 103.

  Next, the configuration of the rotating body driving device 10 of the present invention will be described in detail. In the rotating body drive device 10, as shown in FIG. 3, three approximately short cylindrical rotating bodies 11a to 11c are arranged in parallel along the rotation axis O thereof. Each rotating body 11 is individually supported by support members 12 erected along one end surface (a surface orthogonal to the circumferential surface), and the three support members 12 are supported by an outer frame member (not shown). It is connected.

  One support member 12 has a U-shape when viewed from the side, a base portion 12 a provided in parallel with an end surface orthogonal to the peripheral surface of the rotating body 11, and an outer side than the peripheral surface of the rotating body 12. And leg portions 12b and 12b extending from the base portion 12a so as to be parallel to the peripheral surface. The support member 12 is held by fixing the leg portion 12b to an outer frame member (not shown).

  An auxiliary support member 13 for connecting the rotary body 11 is fixed to the surface of the base portion 12a on the rotary body 11 side. The auxiliary support member 13 has a substantially plate-like shape parallel to the base portion 12a with a space therebetween. A mounting portion 13a is provided. One surface of the attachment portion 13a is exposed to the outside by an opening portion 12c drilled in the central portion of the base portion 12a. For convenience, the surface on the opening portion 12c side of the attachment portion 13a is a surface, The opposite surface is described as the back surface. The driving force transmission means 20 described later is accommodated in a space 12d formed between the base portion 12a and the mounting portion 13a, that is, these means are configured not to protrude outward from the opening portion 12c. Consideration is given so that the arrangement of the driving force transmission means 20 does not hinder the arrangement of the adjacent rotating bodies 11.

  A rotating shaft 14 of the rotating body 11 is attached to the center of the attaching portion 13a so as to penetrate the front and back surfaces, and the rotating shaft 14 is rotatably held by a bearing 15 fixed to the attaching portion 13a. . A motor 17 serving as a drive source is fixed at a lower position on the back surface of the attachment portion 13a, and a drive shaft 18 of the motor 17 protrudes to the surface side of the attachment portion 13a. A stepping motor is applied to the motor 17. Driving force transmission means 20 for transmitting the driving shaft 18 to the rotating shaft 14 is disposed on the surface side of the mounting portion 13a.

  A reel drum 16 of the rotating body 11 is fixed to the tip of the rotating shaft 14 protruding to the back side of the mounting portion 13a. The reel drum 16 has a hollowed-out short cylinder and is provided with a plurality of crosspieces 16a extending radially from the center to the outer periphery. On the outer peripheral surface of the reel drum 16, there are figures, pictures, and other symbols on the front or back surface. A reel tape 19 drawn at a predetermined interval is wound around.

  The driving force transmitting means 20 is configured to transmit the rotation of the driving shaft 18 to the rotating shaft 14 by an endless band 21 wound around the driving shaft 18 and the rotating shaft 14. The endless belt 21 is a timing belt, and the driving shaft 18 and the rotating shaft 14 have a driving shaft pulley 22 and a rotating shaft pulley (corresponding to a disk member in claims) having outer peripheral surfaces engaged with the timing belt, respectively. 23) are fixed to each other. The rotating shaft pulley 23 is formed to have a larger diameter than the driving shaft pulley 22, and the rotational speed of the motor 17 is reduced and transmitted to the rotating body 11.

  A sensor 40 for detecting the rotational position of the rotating body 11 is attached to each rotating body. As shown in FIG. 4, the sensor 40 is composed of a light emitting element 41 that emits light and a light receiving element 42 that receives the light, and is one shield provided so as to protrude from the crosspiece 16 a of the reel drum 16. The plate 43 grasps the origin position of the rotating body 11 by blocking the light of the light emitting element by the rotation.

  In this embodiment, a stepping motor in which one rotation is divided into 48 is adopted as the motor 17, and the rotating body 11 is configured so that one rotation is divided into 252 (steps), and 21 on the peripheral surface of the reel tape 19. A picture is displayed. That is, since the 12 steps of the rotating body 11 correspond to one pattern, the display of the pattern is easily controlled.

  The rotary shaft pulley 23 has a first disk portion 50 fixed to the rotary shaft 14 so as to rotate integrally therewith, and a second disk around which the endless belt 21 is wound and is coaxially assembled to the first disk portion 50. A disk part 51 and a spring-like elastic body 53 connected to the first disk part 50 and the second disk part 51 are provided.

  The first disc portion 50 and the second disc portion 51 of the pulley 23 for the rotating shaft are assembled so as to be relatively slidable with their respective rotation centers coinciding with the center line O of the rotating shaft 14. The sliding surfaces of the first disk portion 50 and the second disk portion 51 are formed on a surface along the peripheral surface of the rotating shaft 14. A spring-like elastic body 53 is connected to the first disk portion 50 and the second disk portion 51, and sliding between the first disk portion 50 and the second disk portion 51 is an extension of the spring-like elastic body 53. Done with contraction.

  As shown in FIGS. 4 to 6, the rotary shaft pulley 23 includes a first disk portion so as to extend the spring-like elastic body 53 when the tension of the endless belt 21 is suddenly increased when the motor 17 is started. 50 and the second disk part 51 slide, the second disk part 51 rotates in conjunction with the endless belt 21, and the first disk part 50 passes through the spring-like elastic body 53 to form the second disk. Rotating while following the portion 51, but when the tension of the endless belt 21 is substantially constant during the steady rotation of the motor 17, the first disc portion 50 and the second disc portion 51 do not slide and the rotary shaft 14. It is comprised so that it may rotate integrally. Of course, not only when the motor 17 is started, but also when a situation occurs in which the tension of the endless belt 21 suddenly increases during steady rotation, the second disk portion 51 extends the spring-like elastic body 53 while Sliding occurs between the disc portion 50 and the disc.

  In this embodiment, the first disk part 50 includes a cylindrical part 50a having a multi-stage outer peripheral surface and the rotating shaft 14 being inserted inside the inner periphery, and a thin disk-like central part 50a. And a plate-like portion 50b having a hole corresponding to the outer periphery. The multi-stage shape of the outer peripheral surface of the cylindrical portion 50 a is formed in a stepped shape so as to increase in diameter as the cylindrical portion 50 a is attached to the rotating shaft 14 and the distance from the distal end side of the rotating shaft 14 increases. One of the step portions of the cylindrical portion 50a (hereinafter referred to as the first step portion 60) is overlaid with the plate-like portion 50a along a direction parallel to the center line O. On the side opposite to the tip of the rotating shaft 14 in the first step portion 60, a second step portion 63 is adjacent with a step approximately the same as the thickness dimension of the small diameter portion 51a of the second disk portion 51 described later. A small diameter portion 51 a is superimposed on the second step portion 63 along a direction parallel to the center line O.

  The first step portion 60 of the cylindrical portion 50 a has a female screw portion 62 drilled, and a screw 57 passing through the mounting hole 61 drilled in the plate-like portion 50 b is screwed into the female screw portion 62. The plate-like portion 50b can be fixed to the tubular portion 50a.

  The outer diameter of the plate-like portion 50b is set to a size that greatly protrudes outward in the radial direction of the tubular portion 50a in a state where the plate-like portion 50b is fixed to the tubular portion 50a. In the plate-like portion 50b, a long hole-shaped through portion 54 that is long along the circumferential direction of the plate-like portion 50b is arranged point-symmetrically with respect to the center of the plate-like portion 50b in plan view. It is drilled in several places. In addition, on the same circumference as the circumference where the penetrating portions 54 are arranged, the plate-like portion 50b is cut and raised at a position on the reverse side (opposite side) in the rotation direction A with respect to each penetrating portion 54. The formed first locking piece 55 is provided at a predetermined interval from the through portion 54.

  The second disk part 51 has a disk-shaped small-diameter part 51a around which the endless belt 21 is wound and has a smaller outer diameter than the plate-like part 50b of the first disk part 50, and has substantially the same outer diameter as the plate-like part 50b. And a thin disk-shaped large-diameter portion 51b. At the center of the small-diameter portion 51a, a hole 65 that fits to the outer periphery of the first disc portion 50 is formed, and at positions corresponding to the two through portions 54 of the plate-like portion 50b, female screws are respectively provided. A portion 64 is formed (see FIG. 7). The first disc portion 50 and the second disc portion 51 slide between the inner peripheral surface of the hole portion 65 of the small diameter portion 51a and the outer peripheral surface of the cylindrical portion 50a. It is set to the extent possible. Concavities and convexities (protrusions, not shown) are formed on the outer peripheral surface of the small-diameter portion 51a so as to correspond to the concavities and convexities of the endless belt 21 that is a timing belt.

  The large-diameter portion 51b has a side surface perpendicular to the peripheral surface of the small-diameter portion 51a, and the side surface orthogonal to the peripheral surface of the small-diameter portion 51a overlaps the side surface opposite to the side surface facing the plate-like portion 50b. Specifically, the step portion formed on the side surface of the small diameter portion 51a is fitted into the center hole of the large diameter portion 51b so that the small diameter portion 51a and the large diameter portion 51b are fixed (caulking, welding, etc.). It has become.

  The assembly of the first disk portion 50 and the second disk portion 51 for constituting the rotary shaft pulley 23 will be described. First, the large diameter part 51b is overlapped and fixed to one side surface of the small diameter part 51a to form the second disk part 51, and the hole part 65 of the small diameter part 51a of the second disk part 51 is formed on the cylindrical part 50a. One side surface of the small diameter part 51a is overlapped on the second step part 63 of the cylindrical part 50a.

  Next, the plate-like portion 50b is overlaid on the first step portion 60 of the tubular portion 50a, and the plate-like portion 50b is fixed to the tubular portion 50a with screws 57. Since the plate-like portion 50b is also in contact with the small-diameter portion 51a of the second disc portion 51, the second disc portion 51 is fixed to the cylindrical portion 50a by fixing the plate-like portion 50b to the cylindrical portion 50a. The pressing force acts on the step 65 side (see FIG. 6).

  Next, inside the through portion 54 of the plate-like portion 50b, a screw that becomes the second locking piece 56 is continuously screwed into the nut 66 and the tubular portion 50a. The spring-like elastic body 53 is attached to each of the first locking piece 55 and the second locking piece 56 (two sets here) (see FIG. 7), and the assembly of the rotary shaft pulley 23 is completed. The second locking piece 56 is disposed inside the penetration part 54 of the plate-like part 50b. When the second disk part 51 slides with respect to the first disk part 50, the second locking piece 56 penetrates. The distance between the first locking piece 55 and the second locking piece 56, that is, the extendable length of the spring-like elastic body 53 is the penetration portion because the inner side of the portion 54 moves relatively. The size of 54 is defined. The size of the through portion 54 and the spring constant of the spring-like elastic body 53 are set to appropriate values in consideration of the load applied to the motor 17 when the motor 17 is started.

The assembled rotary shaft pulley 23 is attached to the rotary shaft 14 such that the plate-like portion 50b is on the tip side, and the cylindrical portion 50s is fixed to the rotary shaft 14 with a screw (not shown) . An endless belt 21 is stretched between the pulley 23 and the drive shaft pulley 22 of the drive shaft 18. In the rotary shaft pulley 23 , the large-diameter portion 51b and the plate-like portion 50b are formed to have an outer diameter larger than the small-diameter portion 51a, so that the endless belt 21 is prevented from falling off.

  In the slot machine 100 configured as described above, when a player inserts one or several medals from the medal insertion slot 114 and operates the starter 112, the motor 17 is activated and is driven by the driving force transmission means 20. The rotation is transmitted to the rotating body 11, and the reel tape 19 starts to rotate. When the rotating body 11 starts to rotate from this stopped state, the rotating body becomes a heavy load, and thus the tension of the endless belt 21 increases rapidly. In the above embodiment, the rotation attached to the rotating shaft 14 is performed. Of the shaft pulley 23, the second disk portion 51 around which the endless belt 21 is wound slides with respect to the first disk portion 50 fixed to the rotating shaft 14.

  In other words, the second disk portion 51, which is small as a load, starts rotating before the entire rotating body starts rotating, so the rotating shaft pulley 23 exhibits a damper function that relaxes the tension of the endless belt 21. As a result, the load on the motor 17 is reduced at the beginning of rotation, and the motor 17 can start to rotate stably.

  Since the second disk part 51 and the first disk part 50 are connected by a spring-like elastic body 53, the second locking piece 56 is moved in the direction of arrow B (see FIG. 7) by the sliding of the second disk part 51. ) And the spring-like elastic body 53 immediately expands. Since the extension amount of the spring-like elastic body 53 is defined by the size of the penetrating portion 54, when the extension amount reaches a predetermined length, the first disc portion 50 follows the second disc portion 51 and starts rotating. At the same time, the rotating shaft 14 integrated with the first disk portion 50 and thus the rotating body 11 also starts rotating.

  As the rotational speed of the motor 14 increases and the tension applied to the endless belt 21 becomes lighter, the spring-like elastic body 53 is gradually shortened to the initial length by its restoring force. When the motor 14 is in a state of steady rotation and the tension of the endless belt 21 becomes substantially constant, the first disk portion 50 and the second disk portion 51 that are the pulley 23 for the rotation shaft and the rotation shaft 14 are Rotates integrally.

  Next, another example in which the above embodiment is modified will be described with reference to FIGS. In this embodiment, when the second disk portion 51 slides with respect to the first disk portion 50, a spring-like elastic body 53 provided between the first locking piece 55 and the second locking piece 56. Is configured to slide while being compressed.

  Specifically, as shown in FIG. 8, the second locking piece 56 is located at a position where the first locking piece 55 is on the forward side in the rotational direction A with respect to the second locking piece 56 (through portion 54). It is provided at a predetermined interval from the (penetrating portion 54). Accordingly, when the rotating body 11 starts rotating from the stopped state and the tension of the endless belt 21 increases rapidly, the second disk portion 51 slides with respect to the first disk portion 50, and the second locking piece 56 Moving in the direction of arrow C (see FIG. 9), the spring-like elastic body 53 is immediately compressed. When the compression amount of the spring-like elastic body 53 reaches a predetermined value, the first disk portion 50 starts to rotate following the second disk portion 51, and at the same time, is integrated with the first disk portion 50. The rotating shaft 14 and thus the rotating body 11 also starts to rotate.

  In the above embodiment, a stepping motor that is small and has a relatively small torque is employed for the motor 17. Therefore, the rotating body 11 is overloaded with respect to the starting torque of the motor 17. The drive shaft 18 does not follow the control step, and the step-out easily occurs.

  However, in any of the above-described embodiments, when the motor 17 is started, the entire rotating body 11 having a large load does not start rotating, but only the second disk portion 51 having a small load starts rotating first. Since a sudden increase in the tension of 21 can be buffered and the step-out in the motor 17 can be reliably prevented, a small motor can be employed with peace of mind for the motor 17.

  As a result, in the rotating body drive device 10, even if the motor 17 is arranged inside the rotating body 11, a space other than the motor can be secured widely, and the internal space of the rotating body 11 can be used for effects such as lighting devices. It can be greatly utilized for arrangement of members, decorative members, and other arbitrary members. Of course, since it is not necessary to arrange a motor outside the rotator 11, the rotator driving apparatus 10 as a whole can be made compact. In addition, a small motor has advantages in that the parts cost is low and the weight can be reduced as compared with a large motor having a large torque.

FIG. 3 is a front external view of a slot machine to which the gaming machine rotary drive device of the present invention is applied. FIG. 2 is a schematic diagram showing an internal configuration of the slot machine of FIG. 1. It is a perspective view which shows schematic structure of the rotational drive apparatus of 1st Embodiment. FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 3. FIG. 5 is a view taken along line VV in FIG. 4. It is a principal part enlarged view of FIG. FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. 5. It is a figure equivalent to FIG. 5 of another example. FIG. 9 is a cross-sectional view taken along line IX-IX in FIG. 8.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Rotating body drive apparatus 11 Rotating body 14 Rotating shaft 17 Motor 18 Driving shaft 20 Driving force transmitting means 21 Endless belt 22 Driving shaft pulley 23 Rotating shaft pulley 50 First disk portion 50a Cylindrical portion 50b Plate-like portion 51 Second Disk portion 51a Small diameter portion 51b Large diameter portion 53 Spring-like elastic body 54 Through portion 55 First locking piece 56 Second locking piece 100 Slot machine

Claims (3)

In a rotating body drive device of a gaming machine provided with a rotating body in which identification information such as numbers and patterns is arranged on the outer peripheral surface, and a drive source for driving the rotating body,
Between the driving source and the rotating body, driving force transmission means for transmitting the rotation of the driving shaft of the driving source to the rotating shaft of the rotating body via an endless belt is provided,
A disk member around which the endless belt is wound is attached to one end of the rotating shaft,
The disk member includes a first disk portion fixed to the rotation shaft so as to rotate integrally with the rotation shaft, and a second disk on which the endless belt is wound and coaxially assembled to the first disk portion. And a spring-like elastic body connected to the first disk part and the second disk part,
The first disk part is disposed closer to the distal end side of the rotation shaft than the second disk part,
The first disk part is provided with a through-hole, and a first end of the spring-like elastic body is locked to a surface of the first disk part opposite to the second disk part. A locking piece is projected,
The second disk portion has a second engagement member with which the other end of the spring-like elastic body is locked so as to protrude from the surface of the first disk portion through the inside of the through portion of the first disk portion. A stop is provided,
When the tension of the endless belt is substantially constant during steady rotation of the drive source, the second disk portion rotates integrally with the first disk portion and the rotation shaft,
When the tension of the endless belt suddenly increases when the drive source is activated, the second disk portion rotates in conjunction with the endless belt while extending or compressing the spring-like elastic body, A rotating body driving device for a gaming machine, wherein the disk portion rotates while following the second disk portion via the spring-like elastic body.   The second disk portion includes a small-diameter portion around which the endless belt is wound with an outer diameter smaller than an outer diameter of the first disk portion, an outer diameter larger than the small-diameter portion, and the first portion sandwiching the small-diameter portion. 2. The rotating body drive device for a gaming machine according to claim 1, further comprising a large-diameter portion disposed so as to face the disk portion. The drive source is disposed inside the rotating body with its driving shaft substantially parallel to the rotating shaft, and the driving force transmitting means reduces the number of rotations of the driving source and is transmitted to the rotating body. 3. A rotating body drive device for a gaming machine according to claim 1 or 2 , wherein the device is configured as described above.

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