JP4873474B2 - Game media transport device - Google Patents

Description

  The present invention relates to a game medium transport apparatus that transports game media such as pachinko balls, and more particularly to a game medium transport apparatus that transports game media by rotating a spiral transport spring in a transport pipe.

  In the game medium conveyance device that conveys the game medium in the conveyance pipe so as to be lifted by rotating the helical conveyance spring with one end connected to a motor or the like and the other end being a free end, When the amount of game media transported suddenly increases, the transport spring expands while rotating, and the free end may come into contact with the side wall of the storage chamber that houses the free end of the extended transport spring. If the contact frequently occurs, the side wall may be damaged due to friction with the rotating free end, or the load on the transport spring may increase and the transport spring may be broken or deformed.

  In order to cope with such a situation, a conveying device in which one end of a helical conveying spring is fixed to a rotating assembly has been proposed (see, for example, Patent Document 1). In addition, there is a conveyance device in which a linear reinforcing body is provided inside the spiral wire ring along the longitudinal direction of the spiral wire ring to prevent the spiral wire ring from extending (see, for example, Patent Document 2). .

JP 2003-79913 A Japanese Utility Model Publication No. 51-19093

  However, when one end of the transport spring is fixed to the rotary assembly, the load applied to the transport spring during transport of the game medium increases, and the motor that rotationally drives the transport spring may break down.

  Also, if one end of the transport spring is fixed to the rotary assembly or a linear reinforcement is provided on the spiral wire ring, even if the number of game media to be transported increases, the extension of the transport spring and the spiral wire ring is suppressed. The pitch does not expand, and the number of game media entering the pitch is reduced compared to the case where one end is a free end. Moreover, as a result of not extending | stretching, the restoring force of a conveyance spring or a spiral wire ring does not increase, and the game medium swept up by this restoring force decreases. As described above, fixing one end of the conveying spring to the rotary assembly or providing a linear reinforcing body on the spiral wire ring causes a problem that the conveying ability is reduced as compared with the case where the rotating end is extended to the free end. It was.

  The present invention seeks to solve the above-mentioned problems, and damages to the inner wall of the end of the conveying pipe due to the contact of the extended free end while maintaining the advantage of extending the conveying spring with one end as a free end. It is an object of the present invention to provide a game medium transport device that can prevent the above-described problem.

  The gist of the present invention for achieving the object lies in the inventions of the following items.

[1] A spiral conveying spring (13), a conveying pipe (12) through which the conveying spring (13) is passed, and an end of the conveying pipe (12) are connected to accommodate one end of the extended conveying spring. A conveying spring drive means (14) connected to the other end of the accommodating chamber (30) and the conveying spring (13) opposite to the accommodating chamber (30) to rotate the conveying spring (13). And the conveying spring (13) is rotated by the conveying spring driving means (14) with one end of the conveying spring (13) being a free end, thereby allowing the game medium in the conveying pipe (12) to be rotated. In a game medium transport device for transporting
When the free end of the conveying spring (13) extended while rotating is abutted and pressed inside the side wall (30b) of the storage chamber (30) facing the free end of the conveying spring (13), A game medium transporting device comprising a contact body (36) that rotates together with the transport spring (13) to protect the side wall (30b) of the storage chamber (30).

  In the above invention, the contact body (36) rotates together with the transport spring (13) when the free end of the transport spring (13) extended while rotating contacts and is pressed. Thereby, a side wall (30b) can be protected from the damage by the direct contact with the free end of the conveyance spring (13) extended while rotating, and the side wall (30b) of a storage chamber (30).

[2] The method according to [1], further including a guide member (34) for guiding the free end of the conveying spring (13) extending while rotating toward the contact body (36). Game media transport device.

  In the above invention, since the free end of the conveying spring (13) that extends while rotating is guided to the contact body (36) by the guide member (34), the free end is located at a place other than the contact body (36), for example, accommodated Contact with the inner peripheral wall or the like of the chamber (30) is prevented from being damaged. Further, the free end of the conveying spring (13) is reliably received by the contact body (36) and the side wall (30b) is protected by reliably guiding the free end to the contact body (36). Can do.

[3] The guide member (34) includes a guide shaft (34) extending in the axial direction of the transfer pipe (12) from the side wall (30b) to the inside of the storage chamber (30), and extends while rotating. The game medium according to [2], wherein the guide shaft (34) enters the spiral of the transport spring (13) and guides the transport spring (13) to the contact body (36). Conveying device.

[4] The contact body (36) includes an insertion hole (36a) that penetrates, and is fitted into the guide shaft (34) through the insertion hole (36a).
A retaining member (37) for preventing the contact body (36) from falling off is provided at a position opposite to the side wall (30b) across the contact body (36) of the guide shaft (34). The game medium carrying device according to [3], wherein

  In the above invention, the abutment body (36) can be disposed in the vicinity of the side wall (30b) so that the abutment body (36) can be efficiently abutted on the side wall (30b) and from the guide shaft (34). It is possible to prevent the contact body (36) from falling off with a simple structure.

[5] The retaining member (37) is tapered toward both the contact body (36) side and the tip end side of the guide shaft (34). [4] Game media transport device.

  In the above invention, the retaining member (37) is tapered toward the distal end side of the guide shaft (34), so that the retaining member is placed inside the spiral of the transport spring (13) when the transport spring (13) is extended. (37) enters smoothly. Further, since the other end of the retaining member (37) is also tapered, even when the transport spring (13) is retracted, the transport spring (13) is smoothly retracted without the retaining member (37) being caught. .

[6] The game medium transport according to any one of [1] to [5], wherein the contact body (36) is tapered toward an end opposite to the side wall (30b). apparatus.

  In the above invention, when the transport spring (13) extends, the tip of the contact body (36) smoothly enters the inside of the spiral of the transport spring (13), so the center of the transport spring (13) and the contact body The free end of the transport spring (13) is brought into contact with the contact body (36) after being aligned so that the rotation center of (36) coincides.

[7] The contact body (36) is provided so as to be displaced by one or more game media in a direction orthogonal to a direction pressed by the free end of the extended transport spring (13). The game medium transport device according to any one of [1] to [6].

  In the above invention, when a game medium enters the gap between the contact body (36) and the inner peripheral wall of the accommodation chamber (30), the contact body (36) is perpendicular to the pressing direction by being pushed by the game medium. The game medium is prevented from biting, and smooth rotation of the contact body (36) is ensured.

[8] The abutting body (36) receives and supports the free end (13a) of the transport spring (13) that extends while rotating toward the side wall (30b), and rotates the transport spring (13). A conveying spring receiving member (61) that rotates in response to
A bearing (62) for receiving at least an axial load of the conveying spring receiving member (61) rotating toward the side wall (30b);
An abutting member (63) that receives pressure toward the side wall (30b) from the bearing (62) and abuts on the side wall (30b);
The game medium carrying device according to any one of [1] to [7], wherein

  In the above invention, the friction between the contact body (36) and the side wall (30b) is provided via the bearing (62) that receives the axial load acting in the direction toward the side wall (30b) with respect to the conveying spring receiving member (61). And the load on the transport spring (13) is further reduced.

  According to the game medium transport device of the present invention, damage to the side wall of the storage chamber due to contact of the free end of the transport spring extended while rotating is maintained while maintaining the advantage of extending the transport spring with one end as a free end. Can be prevented.

  Hereinafter, various embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows an example of a state in which the game medium transport device 10 according to the first embodiment of the present invention is installed on the gaming machine island 2, and FIG. 2 shows the internal configuration of the game medium transport device 10. The gaming machine island 2 houses a large number of gaming machines 3 back-to-back in a frame constructed on the floor of the gaming store, side by side. Hereinafter, in this example, the gaming machine 3 is described as a pachinko machine, and the gaming medium is described as a gaming ball (pachinko ball).

  The gaming machine island 2 has been collected by the collection path 4 that collects the game balls used in the gaming machine 3 below the gaming machine 3 and transports them to the center of the gaming machine island 2, and has been collected and transported by the collection path 4. A game medium transport device 10 as a lifting and polishing device that transports game balls upward while polishing the game balls, an upper tank 5 that stores game balls transported by the game medium transport device 10, and each gaming machine 3 from the upper tank 5 A supply path 6 for supplying game balls to the game machine island 2 is provided, and the game balls are circulated and reused inside the game machine island 2.

  The game medium transporting apparatus 10 is configured to simultaneously grind and lift the game ball by mixing the game ball and the abrasive grains and transporting them while stirring. The abrasive grains are resin grains that are about the size of rice grains. As long as the abrasive grains are sufficiently smaller than the game ball and can remove the dirt of the game ball by stirring with the game ball, the material and shape thereof may be set appropriately.

  The game medium transport device 10 includes a spiral transport spring 13, a transport pipe 12 that passes the transport spring 13, and a storage chamber 30 that communicates with an end of the transport pipe 12 and stores one end of the extended transport spring 13. And a transport motor 14 serving as a transport spring driving unit that is connected to the other end of the transport spring 13 opposite to the storage chamber 30 and rotationally drives the transport spring 13. One end (lower end) of the conveying spring 13 on the side opposite to the driving end is a free end 13a.

  The storage chamber 30 includes an inner peripheral wall 30a and a side wall 30b, and thereby has a cylindrical inner space that is substantially the same inner diameter as the transfer pipe 12, communicates with the transfer pipe 12, and extends the transfer pipe 12. is doing. A game ball introduction port 31 for introducing game balls collected by the collection path 4 into the inside is formed in the inner peripheral wall 30a of the storage chamber 30, and abrasive particles are provided at a connecting portion between the storage chamber 30 and the transfer pipe 12. Abrasive grain introduction port 32 is formed for introducing. In the vicinity of the lower part of the abrasive grain introduction port 32, the inside of the transport pipe 12 forms a merging portion 33 for merging the game ball and the abrasive grains. In addition, this invention is applicable also when the storage chamber 30 is made into a box shape instead of being cylindrical.

  The game medium transport device 10 further collects the separated abrasive grains, a separation rail 15 for separating the game balls and abrasive grains that have flowed out from the end of the transport pipe 12 (the end opposite to the storage chamber 30). And a polishing particle recovery path 17 that guides the abrasive particles recovered by the recovery tower 16 to the polishing particle inlet 32.

  A rotating plate 19 that is rotated by a motor 18 is provided in the middle of the recovery tower 16, and a dust collection nozzle 21 is disposed near the lower portion of the rotating plate 19. The dust collection nozzle 21 is connected to a dust collection device 23 through a dust collection hose 22.

  The rotating plate 19 that is driven to rotate by the motor 18 strikes the abrasive grains falling in the recovery tower 16 and scatters the deposits from the abrasive grains. The scattered deposits are sucked from the dust collection nozzle 21 to the dust collection device 23 and collected.

  The general operation of the game medium transport device 10 is as follows. The game medium transport device 10 rotates the spiral transport spring 13 inserted through the transport pipe 12 in a predetermined direction by the transport motor 14 to agitate and mix the game ball and the abrasive grains from the junction 33 to the upper tank 5. In the meantime, the game ball is polished with abrasive grains (arrow P1 in FIG. 2).

  The transported game balls and abrasive grains flow out one after another from the end of the transport pipe 12 to the separation rail 15 (arrow P2 in FIG. 2). The separation rail 15 is configured by arranging a plurality of rails at intervals that allow abrasive grains to pass but not game balls. The game balls separated by the separation rail 15 are dropped and stored in the upper tank 5 (arrow P3 in FIG. 2). On the other hand, the abrasive particles fall downward from the gap between the separation rails 15 and fall in the recovery tower 16 (arrow P4 in FIG. 2), and collide with the rotating plate 19 in the middle, and are scattered, such as dirt and dust. Is sucked from the dust collection nozzle 21 and removed. The abrasive particles that have further dropped from the recovery tower 16 are guided from the abrasive particle recovery path 17 to the merging section 33 in the storage chamber 30, and are merged and mixed with the game balls from the recovery path 4 at the merging section 33 for reuse. The

  Next, the configuration of the accommodation chamber 30 will be described in more detail.

  FIG. 3 shows the internal structure of the storage chamber 30. The side wall 30b of the storage chamber 30 that faces the free end 13a of the transfer spring 13 is an elongated columnar shape that protrudes in the axial direction of the transfer pipe 12 (the direction toward the axial center of the transfer pipe 12 at the connection portion with the storage chamber 30). The guide shaft 34 is attached by a fixing nut 35. The guide shaft 34 has such a length that the front end 34a reaches the vicinity of the free end 13a of the transport spring 13 when the number of game balls to be transported is relatively small, and is supported by the support member 34b in the vicinity of the front end 34a. It is supported. The outer diameter of the guide shaft 34 is smaller than the inner diameter of the spiral of the conveying spring 13.

  Further, the contact body 36 having a tapered columnar shape and having an insertion hole 36a penetrating on the central axis has an insertion hole in the guide shaft 34 with the tapered tip 36b facing the opposite side of the side wall 30b. It is inserted through 36a. The inner diameter of the insertion hole 36 a is larger than the outer diameter of the guide shaft 34, and the contact body 36 can be displaced in the radial direction of the guide shaft 34 by the difference. The difference between the inner diameter of the insertion hole 36a and the outer diameter of the guide shaft 34 is set to be larger than the diameter of the game ball Y (here, slightly larger than the diameter of one game ball Y).

  Further, the guide shaft 34 is fitted with a retaining member 37 for preventing the contact body 36 from falling off. The retaining member 37 has a circular cross section, and an end portion facing the side wall 30b and an opposite end portion thereof are tapered, and an insertion hole 37a for passing the guide shaft 34 passes through the central axis. The contact member 36 is fixed to the guide shaft 34 so as to sandwich the contact member 36 between the retaining member 37 and the side wall 30b with a slight gap. With the above-described configuration, the contact body 36 rotates freely around the guide shaft 34, and the drop-off from the guide shaft 34 is prevented by the presence of the retaining member 37.

  Next, the movement of the game medium transport device 10 in the accommodation chamber 30 will be described.

  The game balls collected through the collection path 4 flow into the storage chamber 30 from the game ball introduction port 31. On the other hand, the abrasive grains K recovered through the recovery tower 16 and the abrasive grain recovery path 17 flow into the junction portion 33 of the storage chamber 30 from the abrasive grain inlet 32 and merge with the game ball Y. Furthermore, the merged game ball Y and the abrasive grains K are agitated and mixed by a conveyance spring 13 that is driven by a conveyance motor 14 and rotates in a predetermined direction in the conveyance pipe 12, and the inside of the conveyance pipe 12 enters the upper tank 5. It is conveyed while being polished.

  Here, when the transport amount of the game ball Y is small, the stretch amount of the transport spring 13 is small and the free end 13a rotates in the vicinity of the front end 34a of the guide shaft 34 as shown in FIG.

  As the transport amount of the game ball Y increases, the transport load increases and the transport spring 13 extends as shown in FIG. At this time, the guide shaft 34 enters the inside of the spiral of the extending conveying spring 13, and the conveying spring 13 is guided along the guide shaft 34 such that the free end 13 a is directed to the contact body 36.

  When the free end 13a of the conveying spring 13 that is extended while rotating comes into contact with the contact body 36 and presses the contact body 36 toward the side wall 30b, the contact body 36 pushes the free end 13a of the transport spring 13. While receiving and supporting, it rotates with the rotation of the conveyance spring 13. Thereby, the free end 13a of the rotating conveyance spring 13 is in direct contact with the side wall 30b of the storage chamber 30, and damage to the side wall 30b due to friction or the like is prevented.

  In addition, since the contact body 36 rotates smoothly, the load for rotating the transport spring 13 is reduced compared to the case where the free end 13a is in direct contact with the side wall 30b and a large amount of friction is generated. It is possible to prevent troubles such as breaking or deforming along the way.

  Furthermore, since the counter-drive end of the transport spring 13 is the free end 13a, the load applied to the transport motor 14 when the game ball Y is transported is reduced, and deterioration or failure of the transport motor 14 is prevented. In addition, when the number of game balls Y increases, the conveying spring 13 extends, and the pitch becomes longer and the number of game balls Y entering the pitch increases. Further, the restoring force of the conveying spring 13 is strengthened by the extension, and the game balls Y that are lifted up by this restoring force also increase. Therefore, the conveyance amount of the game ball Y can be increased by setting one end of the conveyance spring 13 to the free end 13a.

  Further, since the inner diameter of the insertion hole 36a provided in the contact body 36 is larger than the outer diameter of the guide shaft 34 by the diameter of one game ball Y, as shown in FIG. When the ball Y enters the lower part of the contact body 36, the position of the contact body 36 is pushed by the game ball Y in the radial direction of the guide shaft 34 (that is, by the free end 13a of the extended conveying spring 13). It shifts in a direction perpendicular to the direction in which the contact body 36 is pressed. For this reason, even when the amount of the game ball Y increases and the game ball Y enters the gap between the inner peripheral wall 30a of the storage chamber 30 and the contact body 36, the game ball Y becomes the inner peripheral wall (bottom surface) of the storage chamber 30. 30a and the contact body 36 are not bitten, and smooth rotation of the contact body 36 is maintained.

  Further, the guide shaft 34 guides the free end 13a of the conveying spring 13 toward the contact body 36, so that the free end 13a is prevented from hitting the inner peripheral wall 30a of the storage chamber 30 and causing damage. Further, the free end 13 a of the extended conveying spring 13 can be reliably brought into contact with the contact body 36. Guidance by the guide shaft 34 or the like is particularly effective when the transport pipe 12 is bent in a J shape or the like.

  Further, since the retaining member 37 and the contact body 36 are tapered toward the end opposite to the side wall 30b, when the transport spring 13 is extended, the transport spring 13 extends into the spiral. It smoothly enters the retaining member 37 and the contact body 36. On the other hand, since the end of the retaining member 37 on the side wall 30b side is tapered toward the side wall 30b, the transport spring 13 can be smoothly retracted from the stretched state without being caught by the retaining member 37. .

  Further, since the guide shaft 34 is fitted into the insertion hole 36a of the contact body 36, and the contact body 36 is attached so as to be sandwiched with a slight gap between the side wall 30b and the retaining member 37, the guide body 34 rotates freely and The attachment structure of the contact body 36 that can move in the radial direction of the guide shaft 34 is realized with a simple configuration. The contact between the contact body 36 and the side wall 30b is preferably contact with as little friction as possible, for example, contact on a smooth surface or contact with a lubricant.

  Next, a second embodiment will be described.

  The game medium transport apparatus 10 according to the second embodiment has the same configuration as that of the first embodiment except that the manner of attaching the contact body 60 is different, and the difference will be described below.

  As shown in FIG. 5, the contact body 60 is a single unit between the contact member 63 that contacts the side wall 30 b and the transport spring receiving member 61 that receives and supports the free end 13 a of the transport spring 13 that rotates and extends. The thrust ball bearing 62 is interposed.

  When the free end 13a of the conveying spring 13 that is extended while rotating comes into contact with the conveying spring receiving member 61 and presses the conveying spring receiving member 61 toward the side wall 30b, the conveying spring receiving member 61 and the single thrust ball bearing 62 are interposed. Then, the abutting member 63 is pressed and abutted toward the side wall 30b. The conveyance spring receiving member 61 smoothly rotates with the rotation of the conveyance spring 13 by way of the single type thrust ball bearing 62, while the abutting member 63 in contact with the side wall 30b does not rotate and is between the side wall 30b. There is no sliding. Therefore, the influence of friction between the side wall 30b and the contact member 63 is reduced. Further, since the smooth rotation is ensured by the interposition of the single type thrust ball bearing 62, the load for rotating the conveying spring 13 is further reduced. The single type thrust ball bearing 62 may be a double type or a roller bearing. Further, the bearing may be capable of receiving both an axial load applied in the axial direction and a radial load applied in a direction perpendicular to the axis. In short, any bearing that can receive an axial load may be used.

  Next, a third embodiment will be described.

  In the third embodiment, a protection member 70 for protecting the side wall 30b from damage due to contact is attached to the free end 13a of the transport spring 13.

  As shown in FIG. 6, the protection member 70 includes a disk-shaped base 71 attached to the free end 13 a of the transport spring 13, a disk-shaped contact part 72 that contacts the side wall 30 b, and a base 71. It is comprised from the rolling part 73 interposed between the contact parts 72. FIG. The rolling part 73 is composed of a single thrust ball bearing that receives an axial load. The base portion 71 and the contact portion 72 are engaged with each other by an engagement portion 75 provided at the periphery, and the rolling portion 73 is held so as to be sandwiched between the base portion 71 and the contact portion 72.

  The base 71, the abutting part 72, and the rolling part 73 are each provided with a through hole 74 through which the guide shaft 34 passes, and the guide shaft is inserted into the hole 74 when the conveying spring 13 is extended. By entering 34, the protection member 70 is guided toward the side wall 30b.

  When the abutting portion 72 of the protective member 70 provided at the tip of the conveying spring 13 extending while rotating contacts the side wall 30b, the base 71 rotates smoothly together with the conveying spring 13 due to the presence of the rolling portion 73, and abuts. The part 72 contacts the side wall 30b without rotating, and the side wall 30b is protected. The protective member 70 is not limited to the above-described configuration, and may be any member that can prevent the side wall 30b from being damaged by the contact between the free end 13a of the transport spring 13 and the side wall 30b. That is, any member may be used as long as it is a member that ensures contact with the side wall 30b with little friction, and may simply have a flat surface or spherical surface as a contact surface with the side wall 30b.

  The embodiment of the present invention has been described with reference to the drawings. However, the specific configuration is not limited to that shown in the embodiment, and there are changes and additions within the scope of the present invention. Are also included in the present invention.

  For example, in the embodiment, the conveying pipe 12 is installed in a J-shape, but it may be a straight pipe. Further, the transport pipe 12 may be installed in any of vertical, horizontal, and diagonal directions.

  The side wall 30b is not limited to the one that seals the end of the storage chamber 30, but may be a net or a lattice. The side wall 30b has a hole or a gap as long as it closes the end of the storage chamber 30 to the extent that the game medium does not escape. It doesn't matter.

  The configuration for moving the contact body 36 in the radial direction of the guide shaft 34 (the direction orthogonal to the direction pressed by the free end 13a of the conveying spring 13) is that the inner diameter of the insertion hole 36a of the contact body 36 is set to the guide shaft. The configuration is not limited to the illustrated configuration such that the outer diameter of the guide shaft 34 is larger than the outer diameter of the guide shaft 34. It doesn't matter. In addition, for example, when the guide shaft 34 is installed horizontally, the moving direction in the radial direction is not limited to the configuration in which it can move in the vertical direction as long as it can move in the vertical direction. In short, when a game ball enters between the contact body 36 and the inner peripheral wall 30a of the storage chamber 30, the game ball is prevented from being bitten (in the direction from the game ball toward the central axis of the guide shaft 34). What is necessary is just to move the contact body 36. FIG.

  Further, the guide member that guides the free end 13 a of the conveying spring 13 that extends while rotating toward the contact body 36 in the accommodation chamber 30 is not limited to the guide shaft 34 that enters the inside of the spiral of the conveying spring 13. For example, a guide that restricts the path of the conveyance spring 13 toward the contact body 36 from the outer peripheral side of the conveyance spring 13 by gradually reducing the diameter of the cross section of the storage chamber 30 toward the contact body 36. It may be a member.

  Further, the contact body 36 and the retaining member 37 do not need to have a circular cross section, and may have a polygonal cross section.

  In the embodiment, a game ball has been described as an example of a game medium. However, a medal used in a slot machine may be used.

It is explanatory drawing which shows an example of the state which installed the game media conveying apparatus concerning the 1st Embodiment of this invention in the gaming machine island. It is explanatory drawing which shows the internal structure of the game media conveying apparatus concerning the 1st Embodiment of this invention. It is explanatory drawing which expanded and illustrated the accommodation chamber inside (when the amount of transport of a game ball is small) of the game medium transport apparatus according to the first embodiment of the present invention. It is explanatory drawing which expanded and illustrated the accommodation chamber inside (when the amount of conveyance of a game ball is large) of the game media conveyance apparatus concerning the 1st Embodiment of this invention. It is explanatory drawing which expanded and illustrated the accommodation chamber inside of the game media conveying apparatus concerning the 2nd Embodiment of this invention. It is explanatory drawing which expanded and illustrated the accommodation chamber inside of the game media conveying apparatus concerning the 3rd Embodiment of this invention.

Explanation of symbols

K ... Abrasive grain Y ... Game ball 2 ... Game machine island 3 ... Game machine 4 ... Collection path 5 ... Upper tank 6 ... Replenishment path 10 ... Game medium conveyance device 12 ... Conveyance pipe 13 ... Conveyance spring 13a ... Free end 14 ... Conveyance Motor 15 ... Separation rail 16 ... Recovery tower 17 ... Abrasive grain recovery path 18 ... Motor 19 ... Rotating plate 21 ... Dust collection nozzle 22 ... Dust collection hose 23 ... Dust collector 30 ... Storage chamber 30a ... Inner peripheral wall 30b ... Side wall 31 ... Game ball inlet 32... Abrasive grain inlet 33. Junction 34. Guide shaft 34 a. Tip of guide shaft 34 b. Support member 35... Fixing nut 36 .. Abutting body 36 a. Detachment member 37a ... Insertion hole 60 ... Contact body 61 ... Conveying spring receiving member 62 ... Single thrust ball bearing 63 ... Contact member 70 ... Protection member 71 ... Base 72 ... Contact portion 73 ... Rolling portion 74 ... hole 75 ... engagement part

Claims (8)

A spiral conveying spring; a conveying pipe that passes the conveying spring; an accommodation chamber that communicates with an end of the conveying pipe and accommodates one end of the extended conveying spring; and the accommodating chamber of the conveying spring; A conveying spring driving means connected to the other end of the opposite side to rotate the conveying spring; and rotating the conveying spring by the conveying spring driving means with one end of the conveying spring being a free end. In the game medium transport device for transporting the game medium in the transport pipe,
When the free end of the conveying spring extended while rotating is in contact with and pressed inside the side wall of the storage chamber facing the free end of the transfer spring, the side wall of the storage chamber rotates with the transfer spring when pressed. A game medium transporting device comprising a contact body for protection. The game medium transport device according to claim 1, further comprising a guide member that guides the free end of the transport spring that extends while rotating toward the contact body. The guide member includes a guide shaft extending in the axial direction of the transport pipe from the side wall to the inside of the storage chamber, and the guide shaft enters the spiral of the transport spring extended while rotating and the transport spring is The game medium conveying device according to claim 2, wherein the game medium conveying device is guided to the contact body. The contact body includes an insertion hole therethrough, and is fitted into the guide shaft through the insertion hole.
The game medium conveyance according to claim 3, wherein a retaining member for preventing the contact body from falling off is provided at a position opposite to the side wall with the contact body of the guide shaft interposed therebetween. apparatus. The game medium transport device according to claim 4, wherein the retaining member is formed to be tapered toward both the abutment body side and the tip end side of the guide shaft. The game medium carrying device according to any one of claims 1 to 5, wherein the contact body is formed to be tapered toward an end portion opposite to the side wall. The contact body is provided so as to be displaced by one or more game media in a direction orthogonal to a direction pressed by a free end of the extended transport spring. 6. The game medium carrying device according to 6. The contact body receives and supports a free end of the transport spring that extends while rotating toward the side wall, and a transport spring receiving member that rotates according to the rotation of the transport spring;
A bearing that receives at least an axial load of the conveying spring receiving member that rotates while facing the side wall;
A contact member that receives pressure toward the side wall from the bearing and contacts the side wall;
The game medium transport device according to claim 1, wherein the game media transport device is configured to include

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