JP4483281B2 - Game media lifting device - Google Patents

Description

The present invention relates to a conveyor belt hung only passed between the upper roller located below the roller and the upper located under the pumped tube body which is erected on a vertical form is circulating by driving the electric driving source The present invention relates to a game medium feeding device provided with a tension roller mechanism for feeding game media and applying tension to the transport belt.

  Conventionally, a ball feeding device is known as a device for lifting a game medium such as a pachinko ball from the lower part to the upper part of the pachinko island. In this ball feeding device, a lower roller is provided at the lower part of an upright cylinder body, and an upper roller is provided at the upper part. An endless conveyor belt is bridged between these rollers, and A guide rail is provided in which a belt-like polishing member is laid on the front side so as to face the rising surface of the belt. Then, by rotating the lower roller or the upper roller with the driving force of the motor, the conveyor belt is circulated, and the pachinko balls are sandwiched between the conveyor belt and the polishing member so that the pachinko balls are polished and lifted up. It is like that.

  In addition, such a ball lifting device is equipped with a tension roller mechanism that smoothly rotates the conveyor belt by pressing the conveyor belt with a tension roller and applying tension to the conveyor belt. .

  Further, when the transport belt is deteriorated or damaged, the transport belt needs to be replaced. Therefore, the tension roller mechanism described above does not press the transport belt and the pressing position where the tension roller presses the transport belt. The tension roller can be moved to the pressing release position.

  There are two types of tension roller mechanisms having such a function. The first is a roller between a pressing position and a pressing release position, as disclosed in JP-A-6-296750. It is of the type that moves the axis in parallel. However, in this type, when the conveyor belt is replaced, after the tension roller is moved from the pressing position to the pressing release position, the conveyor belt is removed and attached unless the tension roller is further removed from the tension roller mechanism. In other words, the work is complicated and the workability is poor. Further, as the members constituting the tension roller mechanism, two support members for supporting both ends of the roller shaft in order to move the roller shaft in parallel, two rotation shafts for rotating the two support members, Since many members such as two connecting members for connecting the supporting member to the main body of the feed cylinder are required, there is a problem that the structure becomes extremely complicated.

The second type, as disclosed in Japanese Patent Application Laid-Open No. 2001-120828, is such that the roller shaft is on a substantially horizontal plane with one end of the roller shaft between the pressing position and the pressing release position. Rotate and move. In this type, when replacing the conveyor belt, if the tension roller is rotated from the pressing position to the pressing release position, the conveyor belt can be removed and attached without removing the tension roller from the tension roller mechanism. Can work easily and has excellent workability. Further, since the tension roller mechanism is configured only by the support shaft that supports one end of the roller shaft and the fixing member that fixes the other end of the roller shaft, the structure is also simple. Thus, the second type tension roller mechanism solves the problems of the first type tension roller mechanism.
JP-A-6-296750 (page 3, FIG. 1) Japanese Patent Laid-Open No. 2001-120828 (page 7, FIG. 6)

  However, the tension roller mechanism of the second type described above must move the tension roller from the pressing release position to the pressing position after attaching a new conveying belt in the operation of replacing the conveying belt. The two operations of fixing the other end of the roller shaft of the tension roller with a fixing member while holding the tension roller in a substantially horizontal direction against the repulsive force received from the conveyor belt must be performed simultaneously. Therefore, the work is complicated and the workability is not good.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a game medium feeding device capable of improving the workability of the tension roller mechanism.

To achieve the above object, in the invention according to claim 1, multiplied only passed between the upper roller located below the roller and the upper located under the pumped tube body which is erected on a vertical form In the game medium transporting apparatus provided with a tension roller mechanism that revolves the transport belt to be driven by an electric drive source and feeds the game medium, and applies tension to the transport belt, the tension roller mechanism A tension roller including a roller member that abuts on the conveyance belt and a roller shaft that rotatably supports the roller member, a first support portion that supports one end of the roller shaft, and the other end of the roller shaft are supported. A first support shaft that rotatably supports one end of the roller shaft on a substantially vertical plane, and the second support portion includes the roller. Axial An adhering member that can be in an adhering state in which an end is adhering or in an adhering release state in which the adhering state is released; and an abutting surface formed on a side facing the conveying belt; The surface is provided at a position where the outer surface of the roller shaft facing the contact surface contacts when the tension roller is in a pressing position for pressing the transport belt, and the contact surface of the second support portion And the outer surface of the roller shaft are in contact with each other, and are fixed by the fixing member.

  Moreover, in the invention which concerns on Claim 2, the said 2nd support part is provided with the side plate integrally formed in the said pumping cylinder main body, The said contact surface is the side facing the said conveyance belt of the said side plate. It is the surface formed in this.

  According to a third aspect of the present invention, the second support portion includes an adjustment block that moves in a substantially vertical direction by an operation of the adjustment member, and the contact surface faces the conveyance belt of the adjustment block. It is the surface formed in the side, It is characterized by the above-mentioned.

  In the invention according to claim 4, the axial direction of the first support shaft of the first support portion is substantially horizontal, and the tension roller includes a pressing position for pressing the transport belt and the transport belt. It is characterized in that it rotates and moves on a substantially vertical plane with the first support shaft as a center between a pressing release position where it is not pressed.

  In the invention according to claim 5, the fixing member is composed of a shaft fixing bolt including a head portion and a shaft portion, and a nut screwed to the shaft portion, and the other end of the roller shaft. Includes a first insertion hole through which the shaft portion is inserted, an engagement portion that is formed on a side facing the conveyor belt and that engages the head to prevent rotation of the shaft fixing bolt. The side plate having the contact surface or the adjustment block has a second insertion hole through which the shaft portion is inserted, and the shaft fixing bolt has the shaft portion through the first insertion hole. In a state where the head is inserted through the second insertion hole, the head is disposed at a position where the head is engaged by the engaging portion, and the nut is screwed onto the shaft portion at the position, and the nut is tightened. By slowly operating, the low A stuck state in which the other end of the shaft is fixed, and wherein the fixing-released state in which the fixed state is released, the made thing.

  In the invention according to claim 6, when the contact surface and the outer surface of the roller shaft slide on the outer surface of the roller shaft that contacts the contact surface and / or the corresponding contact surface, It is characterized by being processed to reduce the frictional resistance.

  The invention according to claim 7 is characterized in that the first support portion includes a first support frame that restricts movement of the roller shaft in an axial direction of the first support shaft.

  In the invention according to claim 1, since the repulsive force received by the tension roller from the conveying belt at the pressing position is received by the contact surface of the second support portion, the roller shaft is conveyed even when the other end of the roller shaft is not fixed by the fixing member. The tension roller does not move due to the repulsive force from the belt. For this reason, the two operations that had to be performed in the prior art in which the other end of the roller shaft is fixed by the fixing member while the tension roller is pressed at the pressing position against the repulsive force of the conveying belt are not performed simultaneously. Therefore, workability can be improved.

  In the invention according to claim 2, since the contact surface is a surface of the side plate formed integrally with the lifting cylinder body, the repulsive force of the conveyor belt received from the outer surface of the roller shaft can be easily received. Can do.

  In the invention according to claim 3, since the adjustment block moves in a substantially vertical direction by operating the adjustment member, and the height position of the other end of the roller shaft changes in conjunction with the movement, one end of the roller shaft is The tilt angle of the roller shaft can be changed as the center, and the transport belt can be moved in the lateral direction by changing the tilt angle of the roller shaft when the transport belt position is shifted laterally from an appropriate position. Can be in the proper position.

Further, in the invention according to claim 4, since the tension roller does not rotate and move on a substantially horizontal plane unlike the conventional tension roller mechanism, the tension at the pressing position that could not be used in the conventional one. A space having a high utility value located on a substantially horizontal plane when viewed from the roller can be used for other purposes, and design restrictions can be reduced. For example, if the electrical drive source is designed to be installed in the vicinity of the horizontal plane when viewed from the tension roller at the pressing position, the length in the horizontal direction of the lifting device can be made short and compact. It becomes possible to alleviate the congestion inside the pachinko island platform where various devices are installed, and to enlarge the storage tank installed inside the pachinko island platform to store game media.
In addition, since the tension roller rotates and moves on a substantially vertical surface around the first support shaft, a space on the substantially vertical surface along the conveyance belt that has not been used in the past because it is close to the conveyance belt, It can be effectively used as a space in which the tension roller rotates.
The repulsive force that the tension roller at the pressing position receives from the conveyor belt is such that the force in the vertical direction is smaller than the force in the horizontal direction. Conventionally, the force in the vertical direction, which is a small force, is received by the first support portion, and the tension roller is moved against the force in the horizontal direction, which is a large force. When the tension roller is moved from the pressing release position to the pressing position because a large force in the horizontal direction is received by the first support portion and the tension roller is moved against the small force in the vertical direction. The tension roller can be moved with a smaller force than before, and even in the operation of moving the tension roller, it is easy to apply force using the weight of the tension roller and the weight of the operator. Can be moved relatively easily to the pressed position.
Further, when the present invention and the invention of claim 3 are combined, the conventional one adjusts the direction in which the tension roller rotates (substantially horizontal direction) and the inclination angle in the pressing position and the pressing release position. In this case, since the direction in which the tension roller rotates (substantially vertical direction) differs between the substantially horizontal direction and the substantially vertical direction, an adjustment range of the inclination angle is set around the substantially vertical support shaft that supports one end of the roller shaft. A large clearance that must be taken into account must be provided, and the tension roller rattles with this clearance. However, in the present invention, these two directions are set to the same substantially vertical direction around the first support shaft. It is not necessary to provide the clearance as described above, and it is possible to make the structure that the tension roller does not rattle. It is possible to prevent the problem of the shift or the like.

In the invention according to claim 5, in the conventional one, the shaft fixing bolt that passes through the first insertion hole of the roller shaft is operated to be tightened and the shaft portion is rotated by this tightening operation. It was a thing. For this reason, the position of the other end of the roller shaft may be shifted from the first insertion hole with which the shaft portion comes into contact due to the influence of the rotation of the shaft portion.
In the present invention, since the nut is tightened, the shaft portion is not rotated by this tightening operation, and the position of the other end of the roller shaft can be prevented from being displaced by the tightening operation. .
Further, when the present invention and the invention of claim 3 are combined, this effect becomes even more remarkable. That is, when adjusting the inclination angle of the roller shaft, the fixing member is tightened and loosened as the first operation, and the fixing is loosened, and the operation member is operated as the second operation to adjust the inclination angle of the roller shaft appropriately. According to the angle, as the third operation, the fixing member is tightened and tightened again to fix again, but when the roller shaft is displaced by the tightening operation as in the above-described prior art, Folding angle Even if the inclination angle of the roller shaft is adjusted to an appropriate angle in the second operation, the roller shaft is displaced from the appropriate angle in the third operation. According to the present invention, since the roller shaft does not shift in the third operation, the workability that can be easily adjusted even by a non-skilled worker is improved. .

  In the invention according to claim 6, since the outer surface of the roller shaft that contacts the contact surface is easily slid, the tension roller is moved to the pressing position while the outer surface of the roller shaft is slid on the contact surface. The work to move can be performed easily.

  In the invention according to claim 7, the first support frame restricts the tension roller from moving in the axial direction of the first support shaft, that is, in the horizontal direction. There is almost no movement in the horizontal direction, and the tension roller can be rotated and moved only on the substantially vertical plane more reliably.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 6. FIG. 1 is a side view showing an entire ball feeding device 1 as a game medium feeding device, FIG. 2 is a perspective view showing a state in which a tension roller mechanism 7 is disassembled, and FIG. 3 is a tension roller. FIG. 4 is a side view and a plan view showing the tension roller mechanism 7, and FIG. 5 is a front view showing the inclination of the tension roller 8. FIG. 6 is a side view showing another embodiment of the tension roller mechanism 7.

  In the drawing, the ball lifting device 1 is provided with a lifting cylinder support member 14 made of the same material as that of the support base 2 welded and fixed to an upper portion of a support base 2 formed of a thick steel plate. The feed cylinder main body 3 is erected vertically on the member 14. And the leather conveyance belt 6 hang | overlaid between the lower roller 4 located in the lower part of the feed cylinder main body 3, and the upper roller 17 located in the upper part so that the circumference | surroundings of the feed cylinder main body 3 may circulate. It has become. Between the lower roller 4 and the upper roller 17, intermediate rollers (not shown) for guiding the conveyor belt 6 are pivotally supported by a roller shaft (not shown) and provided at a plurality of locations inside the feed cylinder body 3. However, the intermediate roller functions to assist the rotation of the conveyor belt 6.

  Further, as shown in FIG. 1, the above-described lifting cylinder support member 14 is formed so as to project toward the front side (right side in the figure) of the ball lifting device 1, and at the upper part thereof, a motor mounting portion A motor 13 as an electric drive source for rotating the lower roller 4 is attached via 18. An opening / closing plate 23 that is opened and closed when the transport belt 6 is replaced is attached.

  The feeding cylinder main body 3 has a rectangular shape with one side surface (the front side surface of the ball lifting device 1) opened, and the other side surface (a surface on which a guide rail 5 described later faces) corresponds to an intermediate roller. An opening (not shown) is provided at a position so that a part of the outer peripheral surface of the intermediate roller projects. An opening on one side of the lifting cylinder body 3 is formed as an opening surface (not shown), and a lifting cylinder cover (not shown) is locked to the opening surface. The lifting cylinder cover is fixed so as to cover the opening surface of the lifting cylinder body 3 over the entire length of the lifting cylinder body 3, and when the intermediate roller is repaired or replaced, or inside the lifting cylinder body 3. In case of troubles, the lifting tube cover can be removed to repair, replace, or deal with troubles.

  The conveyor belt 6 described above is driven to rotate around the lifting cylinder body 3 by the rotation of the lower roller 4 that is rotationally driven by the motor 13. In order to apply tension to the conveyor belt 6, a tension roller mechanism 7 having a tension roller 8 with which the conveyor belt 6 abuts is attached above the lower roller 4. The tension roller 8 of the tension roller mechanism 7 is between a pressing position that presses the transport belt 6 (a position indicated by a solid line in FIG. 3) and a press release position that does not press the transport belt 6 (a position indicated by a dotted line in FIG. 3). It can be rotated and moved, and is mainly operated when the conveyor belt 6 is replaced. The tension roller mechanism 7 will be described later in detail. In addition, an introductory basket 11 for aligning pachinko balls as inflowing game media in a plurality of rows is fixed to the lower part of the lifting cylinder body 3, and the pachinko balls after polishing are fixed to the upper part of the lifting cylinder body 3. An upper bent rod 15 is integrally formed with a discharge rod portion 16 from which is discharged.

  Thus, the pachinko balls that have flowed in from the introduction basket 11 are transported from the lower roller 4 toward the upper roller 17 by the conveyor belt 6 and then discharged from the discharge basket 16. The dirt adhering to the pachinko balls is wiped off by the frictional force with the cloth belt 19 as a polishing member provided around the guide rail 5 to be described next, and the pachinko balls that have been cleaned are discharged from the discharge basket 16. Will be. As shown in FIG. 1, an inclination angle adjusting bolt 12 that adjusts the inclination angle of the introduction rod 11 is attached to the introduction rod 11. The inclination angle adjusting bolt 12 is provided with a spring so that the pachinko balls are smoothly aligned even when an excessive force is applied to the introduction rod 11 by the pachinko balls flowing inside. .

  On the other hand, a guide rail 5 is attached to the other side surface of the above-described lifting cylinder body 3 through a support hinge (not shown) attached to one end surface of the lifting cylinder body 3 so as to be freely opened and closed. The support hinges are provided at several places in the vertical direction of the lifting cylinder body 3 and are attached to the guide rail 5 with mounting screws. Further, a stopper 25 is attached to the other end surface of the feed cylinder body 3 via a stopper 26, and on the side of the guide rail 5, the stopper is located at a position corresponding to the stopper 25. An engagement protrusion 24 for locking 25 is provided.

  The guide rail 5 is mainly composed of a guide rail base 5a that forms the base of the guide rail 5, and a guide rail member (not shown) in which a ball passage (not shown) that is a pachinko ball feeding passage is formed. Yes.

  Further, as shown in FIG. 1, the guide rail 5 has a cloth belt tension locking member 22 for locking one end of the cloth belt 19 on the back side and a cloth belt tension for pulling and locking the other end of the cloth belt 19. The locking member 20 is attached, and cloth belt rollers 21 (the cloth belt roller at the lower end is not shown) are provided at the upper and lower ends of the locking member 20 for guiding the cloth belt 19 in a folded manner. Thus, the cloth belt 19 locked to the cloth belt fixing / locking member 22 passes from a cloth belt roller 21 at the lower end of the guide rail 5 through a cloth belt insertion portion (not shown) formed in the guide rail base 5a. The belt is stretched over the fabric belt roller 21 at the upper end, and is tensioned and locked to the fabric belt tension locking member 20.

  Thus, the guide rail 5 is closed with the conveying belt 6 and the cloth belt 19 attached as described above, and the stopper 25 is engaged with the engaging protrusion 24 so that the guide rail 5 is attached to the lifting cylinder body 3. After that, by causing the conveyor belt 6 to rotate, the pachinko balls fitted into the ball path of the guide rail member via the cloth belt 19 rise while the dirt is wiped off by the cloth belt 19.

  At the end of business, the cloth belt 19 is replaced every day. The cloth belt 19 is replaced by a cloth positioned above the cloth belt tension locking member 20 while the cloth belt 19 can move while the cloth belt fixing and locking member 22 and the cloth belt tension locking member 20 are loosened. Pull the belt 19 and position the fabric belt 19 so that the unused surface faces the conveyance belt 6. Then, the fabric belt fixing and locking member 22 and the fabric belt tension and locking member 20 are tightened to lock the fabric belt 19. To do. Thus, the preparation for the next day's polishing is completed. The cloth belt 19 has a length that is approximately seven times the length of the guide rail 5, and the cloth belt 19 corresponding to the length of the guide rail 5 is replaced by the replacement work. Can be used for a week. In this way, when the replacement work is repeated for one week and the cloth belt 19 is used up, the replacement work of the cloth belt 19 is performed. In the replacement operation, first, the cloth belt fixing and locking member 22 and the cloth belt tension and locking member 20 are loosened, and the used cloth belt 19 is removed. Next, an unused new cloth belt 19 is stretched over the cloth belt fixing and locking member 22, the upper and lower ends of the guide rail 5, and the cloth belt tension and locking member 20, and then the cloth belt fixing and locking member 22 and the cloth belt tension. By tightening the locking member 20 and locking the fabric belt 19, the replacement operation of the fabric belt 19 is completed.

  The replacement work of the cloth belt 19 described above can be performed with the guide rail 5 opened from the lifting cylinder body 3 or with the guide rail 5 kept closed, but the unused new cloth belt 19 can be replaced. In the case of the replacement work to be replaced, it is necessary to carry out the guide rail 5 with the guide tube 5 opened from the lifting cylinder body 3.

Next, the tension roller mechanism 7 constituting the main part of the present embodiment will be described.
As described above, the tension roller mechanism 7 applies tension to the conveyor belt 6 that is stretched over the lifting cylinder body 3, and the roller member 31 that contacts the conveyor belt 6 and the roller member 31 are rotatable. The tension roller 8 includes a roller shaft 30 that supports the shaft, a first support portion 9 that supports one end of the roller shaft 30, and a second support portion 10 that supports the other end of the roller shaft 30. .
In addition, the 1st support part 9 and the 2nd support part 10 are members which comprise the tension roller mechanism 7, and are each formed in the side of the roller support frame 40 mentioned later.

First, the tension roller 8 will be described. As shown in FIG. 2, the tension roller 8 includes a roller member 31 and a roller shaft 30.
The roller member 31 is a member that comes into contact with the conveyor belt 6 when the conveyor belt 6 is pressed by the tension roller 8 and is formed in a substantially cylindrical shape. It is formed larger than the diameter dimension. That is, it is formed in a so-called drum-like shape in which the diameter gradually decreases from the central portion to both ends.
The roller shaft 30 that rotatably supports the roller member 31 is formed in a cylindrical shape, and a first chamfered portion 36 having two parallel chamfers is formed at one end thereof. The other end is provided with a second chamfered portion 37 as an outer surface, which is chamfered on one surface parallel to one surface of the first chamfered portion 36, and a screw recess 38 as an engaging portion (see FIG. 4B). Is formed. The first chamfered portion 36 has a first shaft insertion hole 32 through which a shaft fixing bolt 54 described later is inserted, and a shaft fixing bolt 34 described later is inserted from the second chamfered portion 37 to the screw recess 38. Second shaft insertion holes 33 are formed as first insertion holes.

Next, the roller support frame 40 that is a member constituting the tension roller mechanism 7 will be described.
The roller support frame 40 is formed by bending a flat plate into a substantially U-shape, and the bent portion on the first insertion hole 32 side (right side in FIG. 2) of the roller shaft 30 is the first bent portion. 43, a bent portion on the second insertion hole 33 side (left side in FIG. 2) of the roller shaft 30 is formed as a second bent portion 44.
The roller support frame 40 has a plurality of frame mounting holes 41 through which frame mounting bolts 42 for mounting the tension roller mechanism 7 to the feed cylinder main body 3 are inserted (in this embodiment, four locations, one location is illustrated). (Omitted) drilled.

A first support frame 50 composed of two projecting pieces is joined to the tip end portion of the first bent portion 43 of the roller support frame 40 at a predetermined interval. The predetermined interval is formed as a roller shaft insertion portion 57 into which a portion of the first chamfered portion 36 at one end of the roller shaft 30 is inserted. The width dimension of the roller shaft insertion portion 57 is equal to that of the roller shaft 30. It is set slightly larger than the dimension between the two surfaces of the first chamfered portion 36.
The reason why the width dimension of the roller shaft insertion portion 57 can be set to be substantially the same as the width dimension between the two surfaces of the first chamfered portion 36 in this way is that the first shaft insertion hole 32 and the shaft fixing described later are fixed. This is because the bolt 54 is not screwed (the relationship between the screw and the bolt). If the first shaft insertion hole 32 and the shaft fixing bolt 54 are screwed, the position of the roller shaft 30 in the horizontal direction (the axial direction of the shaft fixing bolt 54) is the pressing position and the pressing releasing position. Therefore, the width of the roller shaft insertion portion 57 must be set in consideration of this movement. In the present embodiment, no thread groove is provided on the inner side of the first shaft insertion hole 32 and the outer side of the shaft fixing bolt 54 (the portion located in the first shaft insertion hole 32 when screwed), Since it is in the insertion relationship and the roller shaft 30 does not move in the horizontal direction even if the roller shaft 30 is rotationally moved, it can be set in this way. In order to achieve the insertion relationship, only one of the inner side of the first shaft insertion hole 32 and the outer side of the shaft fixing bolt 54 may be formed so as not to provide a thread groove.

The first support frame 50 protrudes toward the center of the roller support frame 40, and the tension roller 8 is provided in the vicinity of the front end portion of the first support frame 50 on the front side (right side in FIG. 2). An attachment hole 52 through which a shaft fixing bolt 54 as a first support shaft for attachment to the roller support frame 40 is inserted is located near the tip of the first support frame 50 on the back side (left side in FIG. 2). A mounting screw hole 51 into which the fixing bolt 54 is screwed is formed.
Since the screw groove is provided inside the mounting screw hole 51, it is not necessary to provide a nut on the receiving side of the shaft fixing bolt 54, and two nuts (supporting the nut are supported by eliminating the nut). The work that had to be performed simultaneously with the work and the work of turning the shaft fixing bolt 54 can be made into one work (work of turning the shaft fixing bolt 54).
As shown in FIG. 4B, the first support frame 50 causes the roller shaft 30 of the tension roller 8 to move in the axial direction of the shaft fixing bolt 54 (vertical direction in FIG. 4B), that is, in the horizontal direction. Therefore, when the tension roller 8 is rotationally moved between the pressing position and the pressing release position, the tension roller 8 hardly moves in the horizontal direction even if the repulsive force of the conveying belt 6 is received. Can be reliably rotated only on a substantially vertical plane.

In addition, when the tension roller 8 is in a pressing release position where the tension roller 8 is released and does not press the conveying belt 6, the tension roller 8 is placed diagonally above the roller shaft insertion portion 57 and on the upper surface of the first bent portion 43. A magnet piece 53 for fixing at the pressing release position is provided.
When the roller shaft 30 is attracted by the magnetic force of the magnet piece 53, the tension roller 8 is fixed at the pressing release position, so that it is possible to prevent the tension roller 8 from inadvertently moving. For this reason, it is possible to perform the work safely without paying attention to the fact that the tension roller 8 moves when the exchange work of the transport belt 6 is performed, and the workability can be improved.
In this embodiment, the fixing means is constituted by the magnet piece 53 formed of a triangular prism-shaped permanent magnet. However, the fixing means is not limited to this, as long as the tension roller 8 can be fixed at the pressing release position. Well, for example, a hole is formed in each of the roller shaft 30 and the first support frame 50 so as to form a hole in a state of communication when the tension roller 8 is in the press release position. The roller shaft 30 in the pressing release position may be fixed to the first support frame 50 by inserting a pin into the hole, and if configured in this way, the pin is not removed. Since the tension roller 8 cannot move as long as possible, the tension roller 8 can be more securely fixed at the pressing release position than the fixing means constituted by the magnet piece 53. Further, the fixing means may hold the tension roller 8 in the pressing release position at that position, and may have a shape such as a magnet piece 53 formed of a material such as metal or resin. In addition, a locking projection is provided on the surface of the first support frame 50 on the side of the roller shaft insertion portion 57 to displace between a protruding state due to the action of the elastic member and a buried state against the action of the elastic member. The movement is restricted by the locking projection in a state where the roller shaft 30 in the protruding state is moved, and the roller shaft 30 is rotated and moved by a force more than a predetermined force, so that the locking projection is buried and the locking projection is It may be something that releases the regulation. In such a case, the tension roller 8 can be fixed or released only by rotating the tension roller 8 and the workability can be remarkably improved.

On the other hand, a second support frame 60 for attaching an adjustment block 70 for adjusting the inclination angle of the tension roller 8 and a second end of the tension roller 8 at the tip of the second bent portion 44 of the roller support frame 40. A side plate 61 having a contact surface 68, which is a substantially vertical surface with which the chamfered portion 37 abuts, on the surface facing the conveyor belt 6 is joined.
The second support frame 60 and the side plate 61 are integrally formed by bending a flat plate in a substantially U-shape, and two bent portions constitute the second support frame 60, and two portions are formed. A portion connecting the second support frame 60 constitutes a side plate 61. As shown in FIG. 2, the second support frame 60 and the side plate 61 are arranged on the roller support frame 40 so that the second support frame 60 is positioned vertically and the side plate 61 is positioned on the back side (left side in FIG. 2). Projected toward the center.

In addition, an attachment hole through which an adjustment bolt 64 that is an adjustment member for supporting the adjustment block 70 by the second support frame 60 and adjusting the vertical position of the adjustment block 70 is inserted at substantially the center of the second support frame 60. 63 is drilled.
Further, in the vicinity of the side end portion of the side plate 61, a shaft fixing bolt 34 including a head portion 39 and a shaft portion (not shown) for fixing the roller shaft 30 of the tension roller 8 to the adjustment block 70 is inserted. An adjustment slot 62 is formed.
The adjustment block 70 is formed in a rectangular parallelepiped shape, and has an attachment hole 72 through which the shaft fixing bolt 34 is inserted and an adjustment screw hole 71 into which the adjustment bolt 64 is screwed.

Next, assembly of the tension roller mechanism 7 will be described.
First, the roller support frame 40 is attached to the feed cylinder body 3. This is because the frame mounting bolt 42 inserted through the mounting hole 41 is screwed into a mounting screw hole (not shown) drilled in the lifting cylinder body 3, so that the roller support frame 40 is attached to the lifting cylinder body 3. Installation is complete.
Next, one end of the roller shaft 30 is attached to the roller support frame 40. The first chamfered portion 36 of the roller shaft 30 is inserted into the roller shaft insertion portion 57 and the center of the first shaft insertion hole 32 is aligned with the center of the mounting screw hole 51 and the mounting hole 52. Then, the shaft fixing bolt 54 through which the washer 55 and the spring washer 56 are inserted is inserted into the mounting hole 52 and the first shaft insertion hole 32 and is screwed into the mounting screw hole 51. When one end of the roller shaft 30 is attached in this manner, as shown in FIG. 3, the tension roller 8 is pivotally supported in a range indicated by an arrow in FIG. It will be in the state.
The first support frame 50, the mounting screw hole 51, the mounting hole 52, the magnet piece 53, the shaft fixing bolt 54, the washer 55, the spring washer 56, and the roller shaft insertion portion 57 constitute the first support portion 9. It is.

  As described above, the tension roller 8 is rotatably supported on the substantially vertical surface by the shaft fixing bolt 54, and the tension roller 8 does not rotate and move on a substantially horizontal plane unlike the conventional tension roller mechanism. A space with high utility value located on a substantially horizontal plane when viewed from the tension roller 8 at a pressing position that could not be used in the conventional one can be used for other purposes, and there are design restrictions. Can be reduced. In the present embodiment, since the motor 13 is installed at a position near the horizontal plane when viewed from the tension roller 8 at the pressing position, the length of the ball lifting device 1 in the horizontal direction (left and right direction in FIG. 1) is set. It can be made short and compact, and it can be used to relieve congestion inside the pachinko island platform (not shown) where various devices are installed, and a storage tank (not shown) installed inside the pachinko island platform to store balls. It is also possible to make it large.

  Further, since the tension roller 8 rotates on a substantially vertical plane around the shaft fixing bolt 54, it is used in the prior art because it is close to the conveyor belt 6 (because there is a concern about some influence). The space on the substantially vertical plane along the conveying belt 6 that has not been present can be effectively used as a space in which the tension roller 8 rotates.

  The repulsive force that the tension roller 8 at the pressing position receives from the conveyor belt 5 is such that the force in the vertical direction is smaller than the force in the horizontal direction. Conventionally, the first support portion receives a small force in the vertical direction and moves the tension roller 8 against a large force in the horizontal direction. Since the force in the horizontal direction which is a large force is received by the first support portion 9 and the tension roller 8 is moved against the force in the vertical direction which is a small force, the tension roller 8 is moved from the pressing release position to the pressing position. Can be moved with a smaller force than in the past, and even in the operation of moving the tension roller 8, it is easy to apply force using the weight of the tension roller 8 and the weight of the operator. The tension roller 8 can be moved relatively easily from the pressing release position to the pressing position.

Next, the adjustment block 70 is attached to the second support frame 60.
First, the adjustment block 70 is positioned between the two second support frames 60, and the center of the adjustment screw hole 71 is aligned with the center of the attachment hole 63. Then, after the adjustment bolt 64 inserted through the washer 65 is inserted into the upper mounting hole 63 and screwed into the adjustment screw hole 71 and inserted into the lower mounting hole 63, the washer 67 is inserted from the tip of the adjustment bolt 64. The insertion is completed by screwing the two nuts 66 through.

Next, the conveyor belt 6 is stretched over the lifting cylinder body.
In this state, the upper bending rod 15 is removed, and the conveyor belt 6 is passed over the upper roller 17 and the lower roller 4 with the opening / closing plate 23 opened. And it completes by attaching the upper bending rod 15 and closing the opening-and-closing plate 23.

Next, the other end of the roller shaft 30 is attached with a shaft fixing bolt 34.
First, the tension roller 8 is rotationally moved from the pressing release position to the pressing position.
This rotational movement can be made to move on a substantially vertical plane while receiving the repulsive force of the conveyor belt 6 by the first support frame 50, and the roller member 31 rotates to rotate the roller. Since the member 31 moves while rolling on the conveyor belt 6, the contact resistance generated by the contact with the conveyor belt is reduced and can be performed easily.
Further, the movement from the position where the tension roller 8 approaches the pressing position (the position where the second chamfered portion 37 starts to face the contact surface 68) to the pressing position is because the repulsive force of the transport belt 6 gradually increases. The roller shaft 30 is slightly pressed toward the side plate 61 and the second chamfered portion 37 moves to the pressing position while being in contact with the contact surface 68.
In addition, if the surface of the second chamfered portion 37 and / or the contact surface 68 is a low resistance surface subjected to processing for reducing frictional resistance such as Teflon (registered trademark) processing, for example, the rotational movement described above. Can be performed even more easily.

  At this time, since the contact surface 68 is a surface of the side plate 61 formed integrally with the lifting cylinder body 3, the repulsive force of the transport belt 6 received from the second chamfered portion 37 of the roller shaft 30 can be easily received. Can do.

Then, the head 39 of the shaft fixing bolt 34 is fitted into the screw recess 38 in the shaft fixing bolt 34 from the conveying belt 6 side into the second shaft insertion hole 33, the adjustment slot 62, and the mounting hole 72 as the second insertion hole. The roller shaft 30 is tightened together with the side plate 61 and the adjustment block 70 by screwing the nut 73 after the washer 74 and the spring washer 75 are further inserted, and the attachment is completed.
In this way, the repulsive force received by the tension roller 8 from the conveying belt 6 at the pressing position is received by the contact surface 68, so that the conveying belt can be used even when the other end of the roller shaft 30 is not fixed by the shaft fixing bolt 34 and the nut 73. The tension roller 8 does not move due to the repulsive force from 6. For this reason, two operations that had to be performed in the conventional method of fixing the other end of the roller shaft 30 with the fixing member while pressing the tension roller 8 at the pressing position against the repulsive force of the conveying belt 6 are performed. It is not necessary to carry out simultaneously, and workability can be improved.

  The shaft fixing bolt 34, the second support frame 60, the side plate 61, the adjustment elongated hole 62, the attachment hole 63, the adjustment bolt 64, the washer 65, the nut 66, the washer 67, the adjustment block 70, the adjustment screw hole 71, the attachment. The hole 72, the nut 73, the washer 74, and the spring washer 75 constitute the second support portion 10.

Further, the shaft fixing bolt 34 and the nut 73 constitute a fixing member.
The fixing member is not limited to the shaft fixing bolt 34 and the nut 73, and any member can be used as long as the other end of the roller shaft 30 can be in a fixed state and a fixed state. May be. For example, instead of the shaft fixing bolt 34, a rivet having a hole drilled at the tip, a spring pin instead of the nut 73, and after inserting the rivet into the second shaft insertion hole 33, the adjustment slot 62, and the mounting hole 72, The roller shaft 30 may be fixed to the side plate 61 and the adjustment block 70 by inserting a spring pin into the hole at the tip. The nut 73 cannot be turned unless a jig (such as a spanner) is used, but if a handle bar protruding from the side surface of the nut 73 is provided integrally, the nut 73 can be rotated without using a jig. It will be something you can do.

Next, an inclination angle adjustment for changing the inclination angle of the tension roller 8 and returning the conveyance belt 6 to an appropriate position when the conveyance belt 6 is displaced laterally from an appropriate position will be described.
The tension roller 8 has a structure in which the inclination angle can be changed within the range shown in FIGS.
When the tension roller 8 is at the position shown in FIG. 5B, the tension roller 8 is in a substantially horizontal state, and the contact state where the conveyance belt 6 and the roller member 31 are in contact is in a substantially horizontal state. Therefore, the roller member 31 does not give the action of moving the transport belt 6 in the lateral direction.
When the tension roller 8 is located from the position shown in FIG. 5B to the position shown in FIG. 5A, the tension roller 8 is inclined downward to the right. Since the contact state with the member 31 is also in the same inclined state, the roller member 31 acts to move the conveyor belt 6 to the left side.
In this case, the action of moving the transport belt 6 in the lateral direction according to the inclination angle of the tension roller 8 is also increased.
Further, when the tension roller 8 is located from the position shown in FIG. 5B to the position shown in FIG. 5C, the tension roller 8 is inclined downward to the left. Since the contact state with which the member 31 contacts is also in the same inclined state, the roller member 31 has an action of moving the conveyor belt 6 to the right side.
In this case as well, the action of moving the conveyor belt 6 in the lateral direction according to the inclination angle of the tension roller 8 is also increased.

The conveyor belt 6 circulates in a U-shaped groove (not shown) formed on the other side surface of the lifting cylinder body 3 and is appropriately used due to uneven wear due to long-term use or adhesion of foreign matters. There is a case where a so-called lateral misalignment that is laterally deviated from the center position of the U-shaped groove, which is a non-standard position, is regularly inspected for occurrence of the lateral misalignment in the game hall.
Therefore, for example, when the tension roller 8 is in a substantially horizontal state (the state shown in FIG. 5B) at the time of inspection and the conveyor belt 6 is laterally shifted to the right side, the tension roller 8 is gradually moved. An action of inclining downward to the right is given to the conveyor belt 6 to move to the left, and the tension roller 8 is fixed when the conveyor belt moves to the left and moves to an appropriate position.
As described above, even when the conveyance belt 6 is displaced laterally from an appropriate position due to the above-described causes, the conveyance belt 6 can be returned to an appropriate position by changing the inclination angle of the tension roller 8. It has become.

Next, a specific operation method for changing the inclination angle of the tension roller 8 will be described.
First, when the inclination angle of the tension roller 8 is changed, the nut 73 screwed to the shaft fixing bolt 34 is loosened so that the adjustment block 70 can be moved in the vertical direction.
At this time, the rotation of the shaft fixing bolt 34 is restricted because the head 39 of the shaft fixing bolt 34 is fitted in the screw recess 38 (the state shown in FIG. 4B). Thus, since the shaft fixing bolt 34 is structured not to rotate, the structure can be brought into a relaxed state without simultaneously performing two operations of turning the nut 73 while pressing the shaft fixing bolt 34.
Then, after loosening the nut 73, the two nuts 66 screwed to the adjustment bolt 64 are loosened. By turning the adjustment bolt 64 with the nut 66 loosened, the adjustment block 70 screwed to the adjustment bolt 64 moves in the vertical direction, and the other end of the tension roller 8 also moves in the vertical direction accordingly. Therefore, the inclination angle of the tension roller 8 is changed.
When the conveyor belt 6 is in an appropriate position, the loosened nut 66 is tightened to fix the adjustment bolt 64 so that it does not rotate. Thereby, the position of the adjustment block 70 is fixed. By tightening the loosened nut 73, the end of the roller shaft 30 is fixed to the side plate 61 and the adjustment block 70, and the inclination angle adjustment of the tension roller 8 is completed.

In addition, the structure of the 2nd support part 10 of this embodiment differs in the following points compared with the conventional one.
Firstly, in the conventional one, the nut 73 is disposed on the side closer to the conveyor belt 6 and the shaft fixing bolt 34 is disposed on the side farther from the conveyor belt 6 to operate the shaft fixing bolt 34, thereby fixing or relaxing. I was in a state. However, when the shaft fixing bolt 34 is tightened, the shaft portion of the shaft fixing bolt 34 also rotates, so that the rotation of the shaft portion contacts and affects the second shaft insertion hole 33 through which the shaft portion is inserted. Therefore, even though the folding angle and the conveyance belt 6 have been adjusted to an appropriate position, the position of the roller shaft 30 is displaced at the final fixing stage, and the conveyance belt 6 is displaced from the appropriate position. there were. In the present embodiment, the nut 73 that does not have the shaft portion is operated in consideration of the above, so that even if operated, the roller shaft 30 is not affected. The conveyor belt 6 is not displaced from an appropriate position in stages.
Secondly, in the case of the conventional one, if the shaft fixing bolt 34 corresponding to the nut 73 of this embodiment is loosened even slightly when changing from the fixed state to the relaxed state, it will be the same as in this embodiment. Since there is no contact surface 68, the roller shaft 30 pressed by the repulsive force of the conveyor belt 6 moves in a substantially horizontal direction away from the conveyor belt 6, and in this state, the conveyor belt 6 is adjusted to an appropriate position. However, when returning from the relaxed state to the fixed state, the roller shaft 30 moves again in a substantially horizontal direction approaching the conveyor belt 6 again. As a result, the roller shaft 30 is displaced at the final fixing stage and eventually the conveyor belt. 6 sometimes deviated from an appropriate position. In the present embodiment, since the contact surface 68 is provided, the roller shaft 30 is not displaced in the substantially horizontal direction even if the shaft fixing bolt 34 is loosened too much. 6 is not shifted from an appropriate position.
Due to these two differences, the present embodiment can easily adjust the inclination of the tension roller 8 even for beginners.

  As described above, the adjustment block 70 is moved in the vertical direction by the operation of the adjustment bolt 64, and the height position of the other end of the roller shaft 30 is changed in conjunction with the movement, so that the roller shaft 30 is centered on the shaft fixing bolt 54. The inclination angle of the roller shaft 30 is changed when the position of the conveyor belt 6 is shifted laterally from an appropriate position, and the conveyor belt 6 is moved in the lateral direction. An appropriate position can be obtained. Further, in the prior art, the direction in which the tension roller 8 rotates when moving to the pressing position and the pressure releasing position (substantially horizontal direction), and the direction where the tension roller 8 rotates when adjusting the tilt angle (substantially vertical). Direction) is substantially different between the substantially horizontal direction and the substantially vertical direction. Therefore, a large clearance in consideration of the adjustment range of the inclination angle must be provided around the substantially vertical support shaft that supports one end of the roller shaft 30. Although the tension roller has a structure that rattles with clearance, in the present embodiment, these two directions are set to the same substantially vertical direction with the shaft fixing bolt 54 as the center, so even if the clearance as described above is not provided. It is possible to improve the structure so that the tension roller 8 does not rattle and prevent problems such as deviation of the conveyor belt 6 caused by this rattling. It can be.

  In the above-described embodiment, the second support portion 10 includes the side plate 61. However, the present invention is not limited to this, and as shown in FIG. The second support frames 60 may be individually formed without being integrally formed with the side plate 61. In this case, as shown in FIG. 6A, the second chamfered portion 37 that is the outer surface of the roller shaft 30 is a contact that is a surface formed on the side of the adjustment block 70 that faces the conveyor belt 6. The contact surface 68 of the adjustment block 70 plays the same role as the contact surface 68 of the side plate 61 of the above-described embodiment.

  In the above-described embodiment, the side plate 61 is located on the conveyance belt 6 side of the adjustment block 70. However, the present invention is not limited to this, and as shown in FIG. It may be located on the opposite side of the conveyor belt 6 side. Also in this case, as shown in FIG. 6B, the second chamfered portion 37 of the roller shaft 30 abuts against a contact surface 68 that is a surface formed on the side of the adjustment block 70 facing the conveyance belt 6. The contact surface 68 of the adjustment block 70 plays the same role as the contact surface 68 of the side plate 61 of the above-described embodiment.

Further, in the above-described embodiment, the adjustment block 70 is formed in a rectangular parallelepiped shape, and the roller shaft 30 is fixed to the adjustment block 70 by the shaft fixing bolt 34 and the nut 73. As shown in FIG. 6C, the adjustment block 70 may be formed in a U shape having an insertion portion 76, and the end of the roller shaft 30 may be inserted into the insertion portion 76.
In this case, the fitting convex portion 77 is provided on the side wall of the insertion portion 76 on the conveying belt 6 side, and the fitting concave portion 35 is provided at the tip of the roller shaft 30 (the position of the second chamfered portion 37 in the above-described embodiment). As shown in FIG. 6C, the fitting shaft 77 and the fitting recess 35 are fitted to each other, so that the roller shaft 30 can be prevented from coming off from the insertion portion 76. More specifically, in a state where the fitting convex portion 77 and the fitting concave portion 35 are fitted, the tension roller 8 is pressed by the repulsive force of the conveyor belt 6, that is, the fitting concave portion 35 is fitted. Since it is in a state where it is pushed in the direction of the convex portion 77 and the fitting concave portion 35 is not moved in the direction opposite to the direction of the fitting convex portion 77, the fitting cannot be released, so the fitting is released. There is nothing, and it functions as a fixing member different from the shaft fixing bolt 34 and the nut 73. In this embodiment, since the roller shaft 30 must be movable in the substantially horizontal direction by the amount of protrusion of the fitting convex portion 77, the width dimension of the roller shaft insertion portion 57 is set in consideration of this. It is set slightly larger than the dimension between the two surfaces of the first chamfered portion 36. In this embodiment, the surface formed on the side of the fitting convex portion 77 facing the conveyance belt 6 forms the contact surface 68. As the contact surface, the contact surface 68 of this embodiment and the substantially vertical contact surface 68 of the other embodiments are shown, but the repulsive force that the tension roller 8 receives from the conveying belt 6 at the pressing position is received. Even if the other end of the roller shaft 30 is not fixed, the roller shaft 30 may have any shape or structure as long as the tension roller 8 can be prevented from moving. But it ’s okay.

  In the above-described embodiment, the ball lifting device 1 that lifts pachinko balls is shown as a game medium lifting device. However, the present invention is not limited to this, and a game media lifting device that lifts medals and the like as game media. It may be.

  In the above-described embodiment, the tension roller 8 is rotatably supported by the first support portion 9, and the shaft fixing bolt 54 as the first support shaft is provided in the first shaft insertion hole 32 of the roller shaft 30. However, the present invention is not limited to this, and any structure may be used as long as the tension roller 8 can be rotatably supported. For example, the first chamfered portion 36 of the roller shaft 30 has a concave shape instead of the first shaft insertion hole 32. And a convex fitting projection as a first support shaft instead of the shaft fixing bolt 54 is provided on the roller shaft insertion portion 57 side of the first support frame 50 so as to project one of the first support frames 50. The structure is such that the protrusions constituting the support frame 50 are moved, and the protrusions are moved and the fitting protrusions are fitted into the fitting holes so that the tension roller 8 is rotatably supported. It may be a structure. Further, the first support shaft may be substantially vertical in the axial direction.

  In the above-described embodiment, the tension roller mechanism 7 includes one tension roller 8. However, the present invention is not limited to this, and the tension roller mechanism 7 includes a plurality of tension rollers. A tension roller having the same structure may be used. In the above-described embodiment, the second support unit 10 has the adjustment mechanism such as the adjustment block 70. However, the present invention is not limited to this, and the second support unit 10 may have no adjustment mechanism.

  In the above-described embodiment, the roller member 31 of the tension roller 8 is formed in a drum shape in which the diameter of the central portion is larger than the diameter of the side portion. The roller member formed in this may be sufficient, and what provided the protrusion in the center part may be used. In the above-described embodiment, the motor 13 is shown as an electrical drive source. However, any motor may be used as long as it can drive the conveyor belt by driving. Moreover, what provided the handle part which a player can turn by hand in the head of the nut 73 and the adjustment bolt 64 which are operated when loosening a fixed state may be used.

It is a side view which shows the whole ball lifting apparatus. It is a perspective view which shows the state which decomposed | disassembled the tension roller mechanism. It is a perspective view which shows the state which a tension roller rotates and moves on a substantially vertical surface. It is the side view and top view which show a tension roller mechanism. It is a front view which shows the inclination of a tension roller. It is a side view which shows other embodiment of a tension roller mechanism.

Explanation of symbols

1 Ball lifting device (game media lifting device)
3 Lifting cylinder body 5 Guide rail 6 Conveying belt 7 Tension roller mechanism 8 Tension roller 9 First support portion 10 Second support portion 13 Motor (electric drive source)
30 Roller shaft 31 Roller member 32 First shaft insertion hole 33 Second shaft insertion hole (first insertion hole)
34 Shaft fixing bolt (fixing member)
35 Fitting recess 37 Second chamfer (outer side)
38 Screw recess (engagement part)
39 head 40 roller support frame 50 first support frame 51 mounting screw hole 53 magnet piece 54 shaft fixing bolt (first support shaft)
60 Second support frame 61 Side plate 64 Adjustment bolt (adjustment member)
70 Adjustment block 72 Mounting hole (second insertion hole)
73 Nut (fixing member)

Claims (7)

Fried game media by circulating by driving the pawl in place electric driving source to the conveyor belt which is passed between the upper roller located below the roller and the upper located under the pumped tube body which is erected on a vertical form In the game medium lifting device provided with a tension roller mechanism that applies tension to the conveyor belt,
The tension roller mechanism includes a tension roller including a roller member that contacts the transport belt and a roller shaft that rotatably supports the roller member, a first support portion that supports one end of the roller shaft, and the roller A second support part for supporting the other end of the shaft,
The first support portion includes a first support shaft that rotatably supports one end of the roller shaft on a substantially vertical plane ,
The second support portion is formed on a side facing the conveying belt and a fixing member that can be in a fixed state in which the other end of the roller shaft is fixed or a fixed release state in which the fixed state is released. A contact surface
The contact surface is provided at a position where an outer surface of the roller shaft facing the contact surface contacts when the tension roller is in a pressing position for pressing the transport belt,
The game medium transporting apparatus, wherein the abutting surface of the second support portion and the outer surface of the roller shaft are in contact with each other and fixed by the fixing member.   The second support portion includes a side plate formed integrally with the lifting cylinder body, and the contact surface is a surface formed on a side of the side plate facing the conveyance belt. The game medium lifting device according to claim 1.   The second support portion includes an adjustment block that moves in a substantially vertical direction by an operation of an adjustment member, and the contact surface is a surface formed on a side of the adjustment block that faces the conveyance belt. The game medium transport device according to claim 1. The first support shaft of the first support portion has a substantially horizontal axial direction,
The tension roller rotates and moves on a substantially vertical plane around the first support shaft between a pressing position that presses the transport belt and a press release position that does not press the transport belt. The game medium transport device according to any one of claims 1 to 3. The fixing member is composed of a shaft fixing bolt including a head portion and a shaft portion, and a nut screwed to the shaft portion,
At the other end of the roller shaft, a first insertion hole through which the shaft portion is inserted and a side facing the conveyor belt are formed, and the head is engaged to rotate the shaft fixing bolt. An engaging part for blocking,
The side plate having the contact surface or the adjustment block has a second insertion hole through which the shaft portion is inserted,
The shaft fixing bolt is disposed at a position where the head is engaged by the engagement portion in a state where the shaft portion is inserted through the first insertion hole and the second insertion hole, and the nut is Screwed to the shaft portion in position,
5. The tightening operation of the nut results in a fixed state in which the other end of the roller shaft is fixed and a fixed release state in which the fixed state is released. The game medium transport device according to any one of the above.   The outer surface of the roller shaft that is in contact with the contact surface and / or the corresponding contact surface is processed to reduce frictional resistance when the contact surface and the outer surface of the roller shaft slide. 6. The game medium transport device according to claim 1, wherein the game media transport device is provided. The said 1st support part is provided with the 1st support frame which controls that the said roller axis | shaft moves to the axial direction of the said 1st support shaft, The Claim 1 thru | or 6 characterized by the above-mentioned. Game media lifting device.

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