JP7348656B2 - Game ball cleaning device - Google Patents

Description

The present invention relates to a game ball cleaning device.

For example, as described in Patent Document 1 below, a gaming machine (enclosing machine) is known that is equipped with a predetermined number of game balls and uses them cyclically. In this game machine, a game ball is fired toward a game board by a firing device. All game balls fired from the launch device, such as game balls that enter the prize opening provided in the game area of the game board, and game balls that do not reach the game area and return to the launch device side, are stored inside the game machine. The ball is collected, guided to a firing device, and fired again by the firing device toward the game board.

Patent No. 5832738

In general, in gaming machines (pachinko machines), fine dust generated when the gaming balls rub against the gaming board, accessories, various paths, etc., or when the gaming balls collide with each other, adheres to the surface of the gaming balls. . A game ball is fired with dust attached to the game ball, and when the game ball passes through the gaming area, the dust from the game ball adheres to the game board, accessories, etc., and causes damage to the game board, accessories, etc. There is a risk that the machine will get dirty and spoil the aesthetic appearance of the gaming machine. In particular, the above-mentioned problem tends to become noticeable in gaming machines (enclosing machines) in which game balls are used cyclically.

An object of the present invention is to provide a game ball cleaning device that wipes (removes) dirt from game balls. In addition, in the following description of each component of the present invention, in order to facilitate understanding of the present invention, the reference numerals of corresponding parts in the embodiment are written in parentheses, but each component of the present invention is as follows: It should not be interpreted as being limited to the configuration of corresponding parts indicated by the reference numerals in the embodiments.

In order to achieve the above object, the game ball cleaning device (1) according to the present invention wipes away dirt attached to the surface of the game ball 'PB' that is linearly conveyed in a predetermined direction. The game ball cleaning device (1) includes a belt-shaped sheet (23) that extends parallel to the predetermined direction and faces the game balls that are being transported, and that contacts a portion of the game balls; A first roller (30) and a second roller (40) each extending parallel to the predetermined direction, each supported rotatably around an axis extending in the predetermined direction, and whose outer peripheral surface is Of the game balls being transported, the game balls are arranged so as to come into contact with parts located on one end side and the other end side in a direction parallel to the band width direction of the sheet, respectively, when viewed from the contact part with the sheet. A first roller and a second roller, and a drive device (60) that rotates the first roller and the second roller around the axis, and the outer peripheral surface of the first roller and the second roller is connected to the game ball. The first roller and the second roller are rotated in mutually opposite directions so that a portion located on the opposite side of the seat when viewed from the contact portion approaches the game ball, passes through the game ball, and moves toward the seat side. and a drive device for causing.

In the game ball cleaning device of the present invention, the first roller rotates in a state where the game ball and the first roller are in contact (a state where friction occurs). Therefore, a rotational force in the direction opposite to that of the first roller acts on the game ball. On the other hand, the second roller rotates in a state where the game ball and the second roller are in contact with each other (a state where friction occurs). Therefore, a rotational force in a direction opposite to that of the second roller acts on the game ball. Since the rotation directions of the first roller and the second roller are opposite, a force that presses the game ball toward the seat side is generated as a result (see FIG. 10). Since the game ball is conveyed in a predetermined direction (the direction in which the sheet extends) while being pressed against the sheet (with friction occurring), a rotational force acts on the game ball to roll it along the sheet ( (See Figure 11). In this way, the game ball rotates (rotates) while being pressed against the sheet during its conveyance. Therefore, instead of only one point (and its vicinity) of the game ball continuing to contact the sheet, a wider area of the ball comes into contact with the sheet, and dirt from that area is wiped away by the sheet. In addition, dirt on the portions not in contact with the sheet is wiped off by the first roller and the second roller. That is, according to the game ball cleaning device of the present invention, dirt can be wiped (removed) from substantially the entire surface of the game ball.

In the game ball cleaning device according to one aspect of the present invention, the rotational speed of the first roller and the rotational speed of the second roller are different.

For example, when the rotational speed of the first roller is higher than the rotational speed of the second roller, the rotational force generated by the first roller is greater than the rotational force generated by the second roller (see FIG. 10). Therefore, a rotational force as a difference between the rotational force of the first roller and the second roller acts on the game ball. While such rotational force is applied to the game ball, the game ball is conveyed in a predetermined direction while being pressed against the sheet. When the rotational speeds of the first roller and the second roller are the same, the direction of the rotation axis is approximately parallel to the width direction of the sheet (perpendicular to the extending direction of the sheet). On the other hand, when the rotation speeds of the first roller and the second roller are different, the rotation axis of the game ball is inclined with respect to the width direction of the seat and the extending direction of the seat. Therefore, in the process of transporting game balls, if the rotation speeds of the first roller and the second roller are different, the game balls can be spread over a wider range than when the rotation speeds of the first roller and the second roller are the same. The part that spans comes into contact with the sheet, and the dirt on that part is wiped away by the sheet. That is, according to the game ball cleaning device according to this aspect, dirt on substantially the entire surface of the game ball can be wiped away with the sheet.

1 is a perspective view of a gaming machine (pachinko machine) to which a game ball cleaning device according to an embodiment of the present invention is applied. It is a perspective view of a game ball cleaning device. It is an exploded perspective view of a game ball cleaning device. It is an exploded perspective view of a nonwoven fabric cassette. It is a perspective view showing the process of attaching and detaching a nonwoven fabric cassette. It is a front view of a frame. FIG. 3 is a perspective view showing the upper shaft support part. It is a perspective view showing a lower shaft support part. It is a perspective view showing the locus of movement of the game ball. FIG. 3 is a cross-sectional view perpendicular to the extending direction of the central axes of the first roller, the second roller, and the spiral shaft. FIG. 3 is a cross-sectional view parallel to the central axis of the spiral shaft. FIG. 2 is a perspective view showing how a unit including a nonwoven fabric cassette 20, a first roller, and a second roller is replaced.

A game ball cleaning device 1 according to an embodiment of the present invention will be described. First, an outline of a pachinko machine PM as a gaming machine to which the game ball cleaning device 1 is applied will be explained. As shown in FIG. 1, the pachinko machine PM is a substantially rectangular parallelepiped-shaped device extending in the vertical direction. In the following description, the height direction (vertical direction) of the pachinko machine PM will be referred to as the vertical direction. Further, the width direction of the pachinko machine PM is called the left-right direction, and the depth direction of the pachinko machine PM is called the front-back direction.

As shown in the figure, the pachinko machine PM includes a game board BD, a firing device BS, and the like. The game board BD is a substantially rectangular plate member extending in the vertical direction. The game board BD is arranged to face the player. That is, the board thickness direction of the game board BD matches the front-rear direction.

The firing device BS is arranged below the game board BD. The firing device BS fires game balls PB (see FIG. 9) one ball at a time toward the game board BD. The game ball cleaning device 1 (see FIG. 2) of this embodiment is arranged near the firing device BS.

Next, the configuration of the game ball cleaning device 1 will be explained. The game ball cleaning device 1 includes a frame 10, a nonwoven fabric cassette 20, a first roller 30, a second roller 40, a spiral shaft 50, a drive device 60, and a cover 70 (see FIGS. 3, 8, etc.).

The frame 10 is a support member that supports a nonwoven fabric cassette 20, a first roller 30, a second roller 40, a spiral shaft 50, and a drive device 60, which will be described later. The frame 10 extends in the vertical direction. The frame 10 is made of synthetic resin. Each part of the frame 10 is manufactured as a separate part and assembled to form the frame 10. The frame 10 has two blocks (cassette support part 11 and shaft support part 12) (see FIG. 6). The configuration of each part of the frame 10 will be explained in conjunction with the explanation of the parts to be supported (the first roller 30, the second roller 40, the spiral shaft 50, etc.), which will be described later.

The nonwoven fabric cassette 20 includes a cassette case 21, a bobbin 22, a nonwoven fabric 23, and a cover 24 (see FIG. 4). The cassette case 21 is a thin box-shaped member extending in the vertical direction, and its thickness direction is parallel to the left-right direction. The bobbin 22 includes a pair of upper and lower bobbins 221 and 222. The bobbin 22 is housed inside the cassette case 21. The upper bobbin 221 and the lower bobbin 222 have rotating shafts extending in the left-right direction, and are supported by the cassette case 21 so as to be rotatable around the rotating shafts. The nonwoven fabric 23 is a thin strip-shaped member. The width of the band of the nonwoven fabric 23 is approximately half the diameter of the game ball PB (see FIG. 9). One end of the nonwoven fabric 23 is fixed to an upper bobbin 221 and the other end is fixed to a lower bobbin 222. An intermediate portion of the nonwoven fabric 23 (a portion between the upper bobbin 221 and the lower bobbin 222) is pulled out from the upper and lower parts of the front end of the cassette case 21. A nonwoven fabric support portion 21a extending in the vertical direction is provided at the front portion of the cassette case 21. The nonwoven fabric support portion 21a is made of a soft material (for example, sponge). The extra length of the nonwoven fabric 23 is wound around the upper bobbin 221 so that the nonwoven fabric 23 is stretched vertically along the front surface of the nonwoven fabric support part 21a (a certain amount of tension is applied to the nonwoven fabric 23). There is.

The cover 24 is attached to the rear part of the cassette case 21 and covers the rear part of the bobbin 22. A notch is provided at the lower corner of the rear part of the cover 24, and a portion of the lower bobbin 222 is exposed from this notch. By pushing the exposed portion of the lower bobbin 222 with your hand and rotating the lower bobbin 222 counterclockwise when viewed from the right side of the cassette case 21, the portion located on the front surface of the nonwoven fabric support portion 21a ( The intermediate portion of the nonwoven fabric 23 is wound onto the lower bobbin 222, and the portion that was wound onto the upper bobbin 221 is pulled out to the front of the nonwoven fabric support portion 21a. The cassette case 21 also includes a latch mechanism (not shown) that allows the bobbin 22 to rotate only in a certain direction (counterclockwise when viewed from the right). This latch mechanism includes, for example, a pawl that is latched to the lower bobbin 222 each time the bobbin 22 is rotated by a predetermined rotation angle.

The nonwoven fabric cassette 20 described above is removably attachable to the rear surface of the cassette support portion 11 of the frame 10 (see FIG. 5). The cassette support part 11 is a substantially rectangular box-shaped part that extends in the vertical direction and is open to the rear. That is, the cassette support section 11 includes a front plate 111, a bottom plate 112, and a pair of left and right side plates 113 (see FIGS. 5 and 6). The front plate 111 has a rectangular shape extending in the vertical direction. The front plate 111 has an opening OP that extends in the vertical direction. The opening OP penetrates the front plate 111 in the front-rear direction (see FIG. 6). That is, the front plate 111 of the cassette support section 11 has a rectangular frame shape extending in the vertical direction. The bottom plate 112 extends rearward from the lower side of the front plate 111 (see FIG. 5). The side plates 113, 113 extend rearward from the left and right sides of the front plate 111, respectively. The nonwoven fabric cassette 20 is housed in a space surrounded by a front plate 111, a bottom plate 112, and a pair of left and right side plates 113.

With the nonwoven fabric cassette 20 attached to the cassette support part 11, the nonwoven fabric 23 stretched on the front surface of the nonwoven fabric support part 21a is located within the opening OP (see FIG. 10).

The configurations of the first roller 30 and the second roller 40 are the same. The first roller 30 and the second roller 40 each include a round bar-shaped shaft portion S extending in the vertical direction, and a thin brush B spirally wound along the outer peripheral surface of the shaft portion S (see FIG. 7). The brush B is fixed to the shaft portion S.

The spiral shaft 50 is a shaft member that extends in the vertical direction. A spiral groove 51 extending in the vertical direction is formed on the outer circumferential surface of the spiral shaft 50. The groove width of the groove portion 51 is slightly larger than the diameter of the game ball PB. The depth of the groove portion 51 is smaller than the diameter of the game ball PB. The spiral shaft 50 is slightly longer than the first roller 30 and the second roller 40.

The first roller 30 and the second roller 40 include a gear 31 and a gear 41. Gear 31 and gear 41 are spur gears. A gear 31 and a gear 41 are attached to the upper portions of the first roller 30 and the second roller 40, respectively. Further, the spiral shaft 50 includes an upper gear 52 and a lower gear 53. The upper gear 52 and the lower gear 53 are spur gears. An upper gear 52 and a lower gear 53 are attached to the upper and lower parts of the spiral shaft 50, respectively.

The upper and lower ends of the first roller 30, the second roller 40, and the spiral shaft 50 are respectively supported by the shaft support part 12 of the frame 10 so that they can rotate around their central axes. ing. The shaft support section 12 includes an upper shaft support section 121 and a lower shaft support section 122 (see FIG. 6). The upper shaft support section 121 and the lower shaft support section 122 protrude forward from the front surface of the cassette support section 11 .

The upper shaft support portion 121 is a flange-shaped portion that protrudes forward above the cassette support portion 11 (above the upper end of the opening OP). Recesses R1, R2, and RS corresponding to the first roller 30, second roller 40, and spiral shaft 50, respectively, are provided on the lower surface (see FIG. 7). The upper ends of the first roller 30, the second roller 40, and the spiral shaft 50 are inserted into the recesses R1, R2, and RS.

The lower shaft support section 122 is provided at the bottom of the cassette support section 11 (see FIG. 6). The lower shaft support portion 122 has grooved portions G1 and G2 corresponding to the first roller 30 and second roller 40, respectively, and a grooved portion GS corresponding to the spiral shaft 50 (see FIG. 8). The groove-shaped portions G1 and G2 extend in the front-rear direction near the lower ends of the right and left walls of the opening OP, and are opened upward, and their front ends are opened forward. There is. The lower ends of the first roller 30 and the second roller 40 are inserted into the grooves G1 and G2, respectively. The groove-shaped portion GS extends in the front-rear direction below the opening OP, is open upward, and has a front end thereof open forward. A lower end portion of the spiral shaft 50 is inserted into the groove portion GS.

Note that by attaching a cover 70, which will be described later, to the frame 10, the front ends of the groove portions G1, G2, and GS are closed by the cover 70. This prevents the lower end portions of the first roller 30, the second roller 40, and the spiral shaft 50 from slipping out forward from the grooved portions G1, G2, and GS.

The upper gear 52 of the spiral shaft 50 directly meshes with the gear 31 of the first roller 30. Here, the frame 10 includes a gear Ga. The gear Ga is attached to the lower surface of the upper shaft support portion 121 (see FIG. 7). The gear Ga is rotatably supported around a rotating shaft extending in the vertical direction. The upper gear 52 of the spiral shaft 50 meshes with the gear 41 of the second roller 40 via the gear Ga.

The drive device 60 includes an electric motor 61 and a speed reduction device 62 (see FIG. 3). The drive device 60 is arranged on the rear side of the lower short portion of the frame 10. The electric motor 61 is a well-known DC motor. The speed reduction device 62 includes a plurality of gears 621 and a frame 622. The frame 622 is a thin box-shaped member. The upper surface of the frame 622 is directed upward. A plurality of gears 621 are housed within the frame 622. The electric motor 61 is fixed to the upper surface of the frame 622. The output shaft of the electric motor 61 is directed downward. A through hole (not shown) is provided on the upper surface of the frame 622, and the output shaft of the electric motor 61 is inserted into this through hole. A first-stage gear 621 of the reduction gear device 62 is attached to the output shaft of the electric motor 61. A gear 621 at the final stage of the reduction gear 62 meshes with the lower gear 53 of the spiral shaft 50.

The cover 70 is attached to the front surface of the frame 10 and covers the first roller 30, the second roller 40, the spiral shaft 50, etc. (see FIG. 3).

The frame 10 also includes an introduction path 14 for guiding the dirty game ball PB into the interior (the lower end of the spiral shaft 50), and a guideway 14 for feeding the game ball PB from which the dirt has been removed toward the firing device BS. A discharge path 15 is provided (see FIGS. 2 and 9). The introduction path 14 is provided at the lower end of the frame 10. The introduction path 14 extends linearly toward a rearwardly directed portion of the lower end portion of the groove portion 51 of the spiral shaft 50 (between the groove portion 51 and the lower end portion of the cassette support portion 11). The starting end (entrance) of the introduction path 14 is located on the right side, the terminal end is located on the left side, and the introduction path 14 is inclined so that the terminal end side is located below the starting end side. The discharge path 15 is provided at the upper end of the cassette support portion 11 of the frame 10 (between the opening OP and the upper shaft support portion 121). The starting end of the discharge path 15 is located behind the upper end of the groove 51 of the spiral shaft 50. The discharge path 15 extends from its starting end toward the left and further curves toward the front. The end of the discharge path 15 is directed forward and to the right.

All the game balls PB fired from the firing device BS are collected and guided to the game ball cleaning device 1. These game balls PB reach from the starting end of the introduction path 14 to the terminal end of the introduction path 14 (the lower end of the groove portion 51). The spiral shaft 50 is rotationally driven in a counterclockwise direction by a drive device 60 when viewed from above (in FIG. 10). Therefore, the game ball PB is transported upward. Note that a guide portion 111a for preventing the game ball PB from moving in the circumferential direction of the spiral shaft 50 is provided on the frame 10 (see FIG. 10).

The game ball PB rises and reaches the front of the lower end of the opening OP. Here, as described above, the upper gear 52 is directly meshed with the gear 31. Therefore, the first roller 30 is rotating in the opposite direction to the rotation of the spiral shaft 50. The upper gear 52 meshes with the gear 41 via the gear Ga. Therefore, the second roller 40 is rotating in the same direction as the rotation direction of the spiral shaft 50. That is, when viewed from the terminal end side (upper side) in the transport direction of the game ball PB, the first roller 30 rotates clockwise, and the second roller 40 rotates counterclockwise. In other words, of the outer circumferential surfaces of the first roller 30 and the second roller 40, the portion located on the opposite side of the nonwoven fabric 23 when viewed from the contact portion with the game ball PB (for example, the portion facing forward) The first roller 30 and the second roller 40 are rotating so that the ball approaches the game ball PB, passes through the game ball PB, and moves to the nonwoven fabric 23 side.

Further, as described above, the groove depth of the groove portion 51 is set smaller than the diameter of the game ball PB. Therefore, in a state where the game ball PB enters the groove 51 of the spiral shaft 50, a part of the game ball PB is exposed (projects to the outside of the groove 51). The outer circumferential surfaces (brush B) of the first roller 30 and the second roller 40 are in contact with this exposed portion, and friction is generated in these contact portions. The first roller 30 rotates in a state where the game ball PB and the first roller 30 are in contact (a state where friction occurs). Therefore, a rotational force F1 _CCW in the opposite direction to the rotation of the first roller 30 acts on the game ball PB. On the other hand, the second roller 40 rotates in a state where the game ball PB and the second roller 40 are in contact with each other (a state where friction occurs). Therefore, the rotational force F1 _CW in the opposite direction to the second roller 40 acts on the game ball PB. Since the directions of the rotational force F1 _CCW and the rotational force F1 _CW are opposite, as a result, a force _Fp is generated that presses the game ball PB toward the nonwoven fabric 23 (pugs it backward) (see FIG. 10). As mentioned above, since the non-woven fabric support part 21a is made of a soft material, when the game ball PB is pressed against the non-woven fabric 23, the non-woven fabric 23 and the non-woven fabric support part 21a are aligned along the surface of the game ball PB. transforms into That is, the game ball PB and the nonwoven fabric 23 are not in point contact but in surface contact.

Since the game ball PB is conveyed upward while being pressed against the nonwoven fabric, a rotational force F2 (rotational force for rolling along the nonwoven fabric 23) in the clockwise direction when viewed from the right acts on the game ball PB (Fig. (see 11). Further, as described above, the rotational force F1 _CCW and the rotational force F1 _CW are acting on the game ball PB. Here, since the rotational speed of the first roller 30 is set higher than the rotational speed of the second roller 40, the rotational force F1 _CCW generated by the first roller 30 is greater than the rotational force F1 _CW generated by the second roller 40. bigger. Therefore, the game ball PB has a rotational force ΔF1 (=F1 _CCW - F1 _CW ) is in effect (see Figure 10). In this way, the game ball PB rotates (rotates) while being pressed against the nonwoven fabric 23 during its conveyance due to the action of the rotational force (the resultant force of the rotational force ΔF1 and the rotational force F2) shown in FIGS. 10 and 11. ing. Therefore, when the game ball PB reaches the upper end of the nonwoven fabric, the dirt on almost the entire surface of the game ball PB has been wiped (removed) by the nonwoven fabric 23 and the brush B. Thereafter, the game ball PB is discharged from the game ball cleaning device 1 through the discharge path 15. As described above, according to the game ball cleaning device 1, dirt can be wiped (removed) from substantially the entire surface of the game ball PB.

In addition, in this embodiment, the first roller 30 and the second roller 40 have a brush B wound around the shaft portion S, and the brush B is in contact with the game ball PB. Therefore, the frictional force between the brush B and the game ball PB changes slightly depending on the vertical position of the game ball PB and the rotational positions of the first roller 30 and the second roller 40. Therefore, the rotational force F1 _CCW and the rotational force F1 _CW are not constant but change slightly. Therefore, the direction of the rotation axis during the transportation process of the game ball PB is not constant, but slightly fluctuates. As described above, the movement of the game ball PB is complicated, and due to such a complicated movement, the dirt on the game ball PB is more easily wiped away.

Further, in this embodiment, one driving device 60 is used to drive the spiral shaft 50, the first roller 30, and the second roller 40. Therefore, compared to the case where these shaft members are driven individually, the device can be made smaller.

Note that by manually rotating the bobbin 22 periodically (for example, about once a day), the dirty portion of the nonwoven fabric can be wound up, and the unused portion of the nonwoven fabric can be placed in the opening OP. Further, it is provided with an electric motor for rotating the bobbin and its control device, and every time a certain period of time passes or at a predetermined time, the control device drives the electric motor to rotate the bobbin 22, and the non-woven fabric is The unused portion may be placed inside the opening OP. Furthermore, with the cover 70 removed from the frame 10, the first roller 30 and the second roller 40 can be easily replaced from the front side of the frame 10. In addition, as shown in FIG. 12, the frame 10 is configured to be able to be divided into a front half and a rear half, and a nonwoven fabric cassette 20, a first roller 30, and a second roller 40 supported on the rear half of the frame 10 are separated. The entire unit is replaceable.

Furthermore, the implementation of the present invention is not limited to the above-described embodiments, and various changes can be made without departing from the purpose of the present invention.

For example, the rotation speed of the first roller 30 and the rotation speed of the second roller 40 may be the same. In this case, the rotational force F1 _CCW by the first roller 30 and the rotational force F1 _CW by the second roller 40 are the same. That is, although the rotational force ΔF1 for rotating the ball clockwise or counterclockwise when viewed from above is "0", the game ball PB is pressed toward the nonwoven fabric 23 side from the left and right sides with the same force. That is, the rotational force F2 shown in FIG. 11 acts on the game ball PB. Therefore, during the transportation process, the game ball PB rotates (rotates) around an axis extending in the left-right direction. Therefore, only the dirt in the center of the game ball PB in the left-right direction is wiped (removed) by the nonwoven fabric 23, and the dirt in other parts is removed by the brushes B of the first roller 30 and the second roller 40.

Further, in the above embodiment, the nonwoven fabric 23 is mainly used to wipe away dirt on the game ball PB, but instead of this, a sheet-like member (for example, paper) or the like may be used. Further, instead of the brush B of the first roller 30 and the second roller 40, a soft member (for example, a sponge) may be used.

Further, in the embodiment described above, the spiral shaft 50, the first roller 30, and the second roller 40 are driven using one drive device 60. Instead, drive devices that individually drive the spiral shaft 50, the first roller 30, and the second roller 40 may be used.

DESCRIPTION OF SYMBOLS 1...Game ball cleaning device, 10...Frame, 11...Cassette support part, 12...Shaft support part, 14...Inlet path, 15...Ejection path, 20...Nonwoven fabric cassette, 21...Cassette case, 22...Bobbin, 23...Nonwoven fabric , 30... First roller, 31... Gear, 41... Gear, 50... Spiral shaft, 51... Groove, 52... Upper gear, 53... Lower gear, 60... Drive device, 61... Electric motor, 62... Reduction device, 70...Cover, 121...Upper shaft support part, 122...Lower shaft support part, B...Brush, G1, G2, GS...Groove part, 111a...Guide part, OP...Opening part, PB...Game ball, PM... pachinko machine

Claims (2)

A game ball cleaning device that wipes away dirt attached to the surface of game balls that are linearly conveyed in a predetermined direction,
a belt-shaped sheet extending parallel to the predetermined direction and facing the game balls being transported, the sheet coming into contact with a portion of the game balls;
A first roller and a second roller each extending in parallel to the predetermined direction, each of which is rotatably supported around an axis extending in the predetermined direction, and whose outer circumferential surface is attached to the game ball that is being transported. Among them, a first roller and a second roller are arranged so as to contact portions located on one end side and the other end side of the sheet in a direction parallel to the band width direction, respectively, when viewed from the contact portion with the sheet. roller and
A drive device that rotates the first roller and the second roller around the shaft, and the drive device rotates the first roller and the second roller around the shaft, and the outer circumferential surfaces of the first roller and the second roller include the A drive device that rotates the first roller and the second roller in mutually opposite directions so that a portion located on the opposite side of the seat approaches the game ball, passes through the game ball, and moves toward the seat side. and,
A game ball cleaning device equipped with In the game ball cleaning device according to claim 1,
A game ball cleaning device in which the rotational speed of the first roller and the rotational speed of the second roller are different.

Images