JP2011067257A - Token dry-cleaning apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To securely remove handling soil or stains of metal powder or the like collected in uneven patterns or cracks on the surface of a token without using washing water. <P>SOLUTION: A cylinder 5 with a token outlet 5a opened on a side surface is disposed at a position below a token slot 2. An upper brush disk 3 with bristles 3a planted on the lower surface is attached at the lower end of the token slot 2, and a lower brush disk 4 with bristles 4a planted on the upper surface is rotatably mounted inside the cylinder 5 in such a way that bristles 3a and 4a face each other. A pair of upper and lower brush rollers 11 for scrubbing off the stains on the surface of the token m are disposed at positions ahead of the token outlet 5a in a conveying pathway 6, and a pair of upper and lower adhesive rollers 12 for adsorbing the stains scrubbed from the token are disposed at positions ahead of the brush rollers 11 in the conveying pathway 6. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a medal cleaning device used in a game such as a slot machine, and more particularly, to a technology that can reliably remove unevenness on the surface of a medal and dirt accumulated in a dent of a scratch without using cleaning water. .

  A conventional dry-type medal cleaning device is disclosed in Patent Document 1. In this technique, as shown in FIG. 9, a belt conveyor 22 that conveys medals m is provided below the medal insertion slot 21, and the medals m that overlap the middle position of the belt conveyor 22 are separated and passed one by one. An alignment roller 23 is provided, and a plurality of pairs of upper and lower adhesive rollers 24 that feed out dirt on the surface of the medal m with an adhesive force are provided at the transport destination of the belt conveyor 22.

  By the way, since the surface of the medal m has a concavo-convex pattern and scratches formed during use, the adsorption by the adhesive roller 24 of the above technique removes large dust and dirt, but the concavo-convex pattern and dents of the scratches are removed. Dirt such as dirt and metal powder collected on the surface was difficult to remove because the adhesive surface was difficult to reach.

JP 2009-148629 A

  The problem to be solved by the present invention is to solve these conventional problems and to ensure that dirt such as hand dust and metal powder accumulated in the concave and convex pattern on the surface of the medal and scratches is not used without using cleaning water. Another object of the present invention is to provide a dry medal cleaning device that can be removed.

The configuration of the present invention that solves this problem is as follows.
1) A medal feeding device that feeds out a plurality of medals without overlapping each other at a position below the medal insertion slot is provided, and a pair of upper and lower brush rollers that scrapes dirt on the surface of the medal at the transport path position of the medal feeding device. A dry medal cleaning device provided with a pair of upper and lower adhesive rollers for adsorbing dirt scraped to the transport path position ahead of the brush roller. 2) A strong adhesive roller having a stronger adhesive force than the adhesive roller is in contact with the adhesive roller. The dry medal cleaning device according to 1) provided as described above 3) The brush hair of the pair of upper and lower brush rollers has a wire diameter of 0.4 mm or less and a length of 5 to 13 mm, 1) or 2) The dry medal cleaning device 4) The brush hair of the pair of upper and lower brush rollers has a wire diameter of 0.2 to 0.3 mm, and the brush hair density is 80 to 1 per 1 cm in the circumferential direction. The dry medal cleaning device 5) described in 1) or 2), wherein the medal feeding device has a medal discharge port opened on a side surface at a position below the medal insertion port. A cylinder is provided, and the height of the medal discharge port of the cylinder is formed to a height equal to or less than the thickness of two medals. The dry medal cleaning device 6) according to any one of the above 1) to 4), which has a structure provided so as to have a height. The dry-type medal cleaning apparatus according to 5), wherein an upper brush board having brush hairs planted on the lower surface is provided at a position opposite to the upper brush board, and an opening communicating with the medal insertion slot is formed at the center of the upper brush board.

  In the present invention, a plurality of medals inserted into the medal insertion slot are sent out so as not to overlap with the medal feeding device, and the sent out medals are rubbed on both sides by a pair of upper and lower brush rollers in the middle of the conveyance path, Dirt accumulated in uneven patterns and scratches is scratched. Thereafter, the scraped dirt is sent out while being adsorbed by a pair of upper and lower adhesive rollers. Therefore, it becomes possible to surely remove the uneven pattern and the dirt of the dents that are difficult to remove with only the adhesive roller, and the cleaning ability is higher than that of the conventional technique.

It is a longitudinal cross-sectional view of the dry-type medal cleaning apparatus of an Example. It is a disassembled perspective view of the dry-type medal cleaning apparatus of an Example. It is a perspective view of the brush roller and adhesive roller of an Example. It is explanatory drawing of the brush roller of an Example. It is explanatory drawing which shows the use condition of the dry-type medal cleaning apparatus of an Example. It is explanatory drawing which shows a motion of the bristle of the brush roller of an Example. It is a longitudinal cross-sectional view of the dry-type medal cleaning apparatus of the other example of an Example. It is a longitudinal cross-sectional view of the dry-type medal cleaning apparatus of the other example of an Example. It is a longitudinal cross-sectional view of the conventional dry medal cleaning apparatus.

  As the brush roller of the present invention, a brush hair having a wire diameter of 0.4 mm or less, desirably 0.2 to 0.3 mm and having a length of 5 to 13 mm is implanted. It is preferable because the dirt accumulated in the depression can be surely scraped off. When the bristle is flocked in a spiral shape, the bristle moves obliquely with respect to the medal transport direction, and friction is generated by the relative movement to improve the cleaning ability. A practical range of the flocking density is 80 to 120 per cm in the circumferential direction. Furthermore, if the rotation speed of the upper and lower brush rollers is made different, or if the medal feeding speed of the medal feeding device is made different from the feeding speed of the brush roller, the relative movement causes friction to further improve the cleaning ability. To do.

  As an adhesive roller, a roller or a synthetic resin having a hard or elastic material to which an adhesive such as an acrylic or silicon is added, a roller made of the synthetic resin as a surface layer of a base roller, There are those in which the pressure-sensitive adhesive is applied to the outer peripheral surface of the base roller, and those in which an adhesive tape is wound around the outer peripheral surface of the base roller. The distance between the upper and lower adhesive rollers is slightly smaller than the thickness of the medal, so that the adhesive roller is surely in contact with both sides of the medal. Alternatively, the adhesive rollers may be lightly in contact with each other to such an extent that the mutual adhesive force does not affect the rotation. If a strong adhesive roller with stronger adhesive strength than the adhesive roller is provided in contact with the adhesive roller, dirt on the surface of the adhesive roller is transferred to the strong adhesive roller to maintain the adhesive force of the adhesive roller, and the adhesive roller needs to be replaced less frequently. This is preferable. The material of the strong adhesion roller is the same as that of the above-mentioned adhesion roller, and the one having more adhesive added to increase the adhesive force is used. One or a plurality of brush rollers and adhesive rollers are provided depending on the cleaning ability.

  As a medal feeding device, a rotating disk that sends overlapping medals in a circumferential direction by centrifugal force and a belt conveyor that sends medals stacked with rollers provided on the conveying surface while sending them apart. The thing of the structure which can be sent out in an overlapping manner so that both surfaces can be cleaned is used. As a rotating disk, a brush disk with brush bristles is used, and the brush disk and another brush disk mounted facing the upper position can be sent out while polishing both sides of the medal. The effect is improved and preferable.

  Embodiments of the present invention will be specifically described below with reference to the drawings. 1 is a longitudinal sectional view of a dry-type medal cleaning device of the embodiment, FIG. 2 is an exploded perspective view of the dry-type medal cleaning device of the embodiment, FIG. 3 is a perspective view of the brush roller and the adhesive roller of the embodiment, and FIG. FIG. 5 is an explanatory view showing the usage state of the dry medal cleaning device of the embodiment, and FIG. 6 is an explanatory view showing the movement of the brush bristles of the brush roller of the embodiment.

  In the figure, 1 is a dry medal cleaning device, 2 is a medal slot, 3 is an upper brush board, 3a is brush hair, 3b is open, 4 is a lower brush board, 4a is brush hair, 4b is a soft sheet, 5 is Cylindrical body, 5a is a medal discharge port, 6 is a conveyance path, 7 is a discharge port, 8 is a rotation shaft, 8a is a driven roller, 9 is a motor, 9a is a drive roller, 10 is a drive belt, 11 is a brush roller, 11a is Core material, 11b brush hair, 11c gear, 12 adhesive roller, 12a gear, 13 rotating shaft, 13a gear, 13b small gear, 14 motor, 14a drive gear, 15 drive chain, 16 Is a tray and m is a medal.

  As shown in FIGS. 1 and 2, the dry medal cleaning device 1 of the present embodiment includes a mortar-shaped medal slot 2 at the top, and brush bristles 3a are planted on the lower surface of the medal slot 2 at the lower surface. The upper brush board 3 formed at the center is attached. A cylindrical body 5 having a medal discharge opening 5a opened on the side surface is attached to a position below the medal insertion slot 2, and a lower brush disc 4 having brush bristles 4a planted on the upper surface inside the cylindrical body 5 is rotatable. It is arranged. The central portion of the bottom surface of the cylindrical body 5 is opened so that the lower brush disc 4 and the rotary shaft 8 are attached to each other, and the drive belt 10 is hung between the driven roller 8 a of the rotary shaft 8 and the drive roller 9 a of the motor 9. It is built.

  The lower brush board 4 is arranged such that the bristles of the bristles 4a and the upper surface of the soft sheet 4b are at the same height as the bottom surface of the medal discharge port 5a. The soft sheet 4b is made of a material having friction, and is provided to prevent the medal m from slipping on the bristles 4a. The interval between the brush bristles 3a and 4a is set to be slightly smaller than the thickness of the medal m. The medal discharge port 5a is formed to have a height equal to or less than the thickness of two medals m, and when the medals m are to be discharged while being overlapped, the medal discharge port 5a is blocked by the upper wall. It is designed to be discharged one by one. The width of the medal discharge port 5a is formed such that a plurality of medals m can be discharged simultaneously.

  A pair of upper and lower pairs of brush rollers 11 and a pair of upper and lower pairs of adhesive rollers 12 are provided in the middle of the conveying path 6 along the conveying direction, and the cleaned medal m is discharged to the delivery destination of the adhesive rollers 12. A discharge port 7 is opened. As shown in FIG. 3, gears 11c and 12a are attached to the shaft ends of the brush roller 11 and the adhesive roller 12, and a rotating shaft 13 having a gear 13a is disposed immediately below the lower brush roller 11 and the adhesive roller 12. The upper and lower gears 11c, 12a, and 13a mesh with each other. A small gear 13b is attached to the shaft end of the rotary shaft 13, and a drive chain 15 is hung between the small gear 13b and the drive gear 14a of the motor 14 so as to be interlocked. The brush roller 11 and the adhesive roller 12 are inserted into a vertically long bearing (not shown) so as to be removable from above so that the gears 11c, 12a, and 13a mesh with each other so that they can be easily replaced during maintenance. Good.

  As shown in FIG. 4, the brush roller 11 has a brushing density of 100 mm per 1 cm in the circumferential direction of nylon bristles 11 b having a wire diameter of 0.2 mm and a length of 8 mm on the peripheral surface of the core material 11 a. Thus, the hairs of the brush bristles 11b that are vertically opposed to each other are axially supported at positions where the bristles of the bristles 11b that are vertically opposed to each other are substantially in contact. Under the lower brush roller 11 and the adhesive roller 12, a tray 16 for receiving the dropped dust is provided. The medal m has a thickness of 1.6 mm, an outer diameter of 25 mm, and the depth of the concave / convex recess is about 0.3 mm.

  In this embodiment, when the motors 9 and 14 are operated, the lower brush board 4, the brush roller 11, and the adhesive roller 12 rotate. As shown in FIG. 5, when the dirty medal m is inserted into the medal insertion slot 2, the lower brush board 4 rotates to enter between the brush bristles 3a and 4a to take a horizontal posture. The brush bristles 3a and 4a While both surfaces are polished, the surface is moved in the circumferential direction by centrifugal force, and discharged one by one from the medal discharge port 5a (a plurality of sheets in the width direction are simultaneously discharged). The removed large dust and dirt fall from the peripheral edge of the lower brush disc 4 to the bottom of the cylinder 5.

  The discharged medal m enters between the pair of upper and lower brush rollers 11, and as shown in FIG. 6, the bristles 11b press the surface of the medal m while deforming in contact with the medal m, and the hair tips are uneven. Or hit a dent in the wound. The medal m is transported by the rotational force of the brush roller 11 and passes through the brush roller 11. When the brush bristles 11 b move away from the surface of the medal m, the bristles bounce off the uneven pattern or the dent of the scratches by the repulsive force of the bristles 11 b. So that the dirt is scraped away. The scraped dirt adheres to the brush bristles 11b, reattaches to the surface of the medal m, or falls to the tray 16.

  After that, it enters between the pair of upper and lower adhesive rollers 12, the scraped dirt adhering to the surface of the medal m is adsorbed, sent to the discharge port 7 and discharged. The dirt adsorbed on the adhesive roller 12 remains adsorbed by the adhesive force, but falls to the tray 16 when peeled off. As described above, according to the present embodiment, it is possible to surely remove the uneven pattern and the dirt on the scratches that are difficult to remove with the adhesive roller 12 alone, and the cleaning ability is higher than that of the conventional technique. It was.

  FIG. 7 shows another example of the dry medal cleaning device according to the embodiment provided with the strong adhesion roller. FIG. 7 is a longitudinal sectional view of another example of the dry medal cleaning device according to the embodiment. In the figure, 17 is a strong suction roller. In this example, a small-diameter strong adhesive roller 17 showing an adhesive force stronger than that of the adhesive roller 12 is provided in contact with the adhesive roller 12. Thereby, the dirt adsorbed on the adhesive roller 12 is transferred to the strong adsorption roller 17 so that the adhesive force of the adhesive roller 12 is maintained, and the frequency of replacement of the adhesive roller 12 can be reduced. The strong adhesion roller 17 may be driven directly, or may be driven by the rotation of the adhesion roller 12 by the mutual adhesive force or friction caused by pressure contact. In other respects, the reference numeral, the configuration, and the operational effects are the same as in the embodiment.

  FIG. 8 shows another example of the dry medal cleaning device according to the embodiment using a plate-shaped rotating disk instead of the lower brush disk. FIG. 8 is a longitudinal sectional view of another example of the dry medal cleaning device according to the embodiment. In the figure, 18 is a rotating disk and 18a is a soft sheet. In this example, the upper brush plate 3 of the embodiment is omitted, and a plate-like rotating plate 18 having a non-slip soft sheet 18a on the upper surface is attached instead of the lower brush plate 4. Further, two sets of brush rollers 11 are provided with one set of adhesive rollers 12, and dirt of the medal m is removed by the two sets of brush rollers 11 including large dust. This example is used when the number of medals m to be cleaned is relatively small, and the structure is simple and can be implemented at low cost. In other respects, the reference numeral, the configuration, and the operational effects are the same as in the embodiment.

  The technology of the present invention can be used for cleaning coins and articles having similar shapes in addition to medals used in games such as slot machines.

DESCRIPTION OF SYMBOLS 1 Dry medal cleaning apparatus 2 Medal insertion slot 3 Upper brush board 3a Brush bristles 3b Opening 4 Lower brush board 4a Brush bristles 4b Soft sheet 5 Cylinder 5a Medal discharge port 6 Conveyance path 7 Discharge port 8 Rotating shaft 8a Follower roller 9 Motor 9a Drive roller 10 Drive belt 11 Brush roller 11a Core material 11b Brush bristles 11c Gear 12 Adhesive roller 12a Gear 13 Rotating shaft 13a Gear 13b Small gear 14 Motor 14a Drive gear 15 Drive chain 16 Receptacle 17 Strong adhesive roller 18 Rotary plate 18a Soft sheet 21 Medal slot 22 Belt conveyor 23 Alignment roller 24 Adhesive roller m Medal

Claims (6)

  A medal feeding device that sends out a plurality of medals without overlapping each other at a position below the medal slot, and a pair of upper and lower brush rollers that scrape dirt on the surface of the medal at the transport path position of the sending destination of the medal feeding device, A dry medal cleaning device provided with a pair of upper and lower adhesive rollers for adsorbing dirt scraped to the transport path position ahead of the brush roller.   2. The dry medal cleaning device according to claim 1, wherein a strong adhesive roller having a stronger adhesive force than the adhesive roller is provided so as to contact the adhesive roller.   The dry medal cleaning apparatus according to claim 1 or 2, wherein the brush bristles of the pair of upper and lower brush rollers have a wire diameter of 0.4 mm or less and a length of 5 to 13 mm.   The bristles of a pair of upper and lower brush rollers are implanted in a spiral shape so that the flocking density is 80 to 120 per 1 cm in the circumferential direction in the range of a wire diameter of 0.2 to 0.3 mm. The dry-type medal cleaning device according to claim 1 or 2.   The medal feeder is provided with a cylindrical body with a medal outlet opening at the side of the medal slot, and the height of the medal outlet of the cylinder is less than the thickness of two medals. The dry-type medal cleaning device according to any one of claims 1 to 4, wherein the dry-type medal cleaning device is formed and has a structure in which a rotating disk is provided in a cylindrical body so that an upper surface thereof is flush with a bottom surface of the medal discharge port.   The rotating board is a brush board with brush hairs planted on the upper surface, and an upper brush board with brush hairs planted on the lower surface is provided facing the upper side of the brush board, and a medal is placed at the center of the upper brush board The dry medal cleaning apparatus according to claim 5, wherein an opening communicating with the insertion port is formed.

Images