JP2002103208A - Pachinko ball cleaning device and abrasive cloth - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent soil absorbed and removed from a pachinko ball from transferring to another pachinko ball at cleaning and provide an excellent cleaning performance suitable for a long-term use. SOLUTION: This pachinko ball cleaning device comprises a guide plate in which a single-sided surface is made open and a spiral pachinko ball guide groove is formed, and the circular abrasive cloth provided so as to be opposite to the opening single-sided surface of the guide plate. In the cleaning device, cleaning of the pachinko ball is carried out such that at least any one of the guide plate and the abrasive cloth is pressurized to an opposite direction thereby being driven and rotated. The abrasive cloth is formed of a nonwoven cloth which is comprised of resin fiber as a material.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pachinko ball cleaning apparatus for cleaning pachinko balls of a pachinko game machine used as, for example, mass entertainment, and more particularly, to a pachinko ball cleaning apparatus and a polishing cloth having improved cleaning performance. About.

[0002]

2. Description of the Related Art Generally, a pachinko ball cleaning apparatus of this kind is provided in a supply process of supplying a pachinko ball to a pachinko ball game machine or in a collecting process of collecting a pachinko ball from a pachinko ball game machine. Opposite the polishing cloth toward the conveying path to be conveyed, by bringing this polishing cloth into pressure contact with the pachinko balls passing through the path, the fine, dust, dust attached to the pachinko balls passing therethrough,
The abrasive cloth wipes off dust such as metal powder and oily dirt.

[0003]

However, as this polishing cloth removes dirt from the pachinko balls, the dirt gradually adheres to the polishing cloth, and the adhered dirt is transferred to the surface of the pachinko balls in reverse. Yes, the degree of transfer becomes remarkable with long-term use, and the cleaning performance is reduced. Therefore, the replacement of the polishing pad is frequently required, resulting in an increase in cost. Further, since the polishing pad is soft and has no waist, there has been a problem that the replacement operability when attaching / detaching to / from a fixed position is poor.

Accordingly, the present invention provides a pachinko ball cleaning device and a polishing cloth which prevent dirt absorbed and removed from a pachinko ball from being transferred to another pachinko ball during cleaning and which has high cleaning performance suitable for long-term use. The purpose is to:

[0005]

According to the present invention, there is provided a guide plate having a spiral pachinko ball guide groove which is opened on one side and a circular polishing cloth provided on one side open side of the guide plate. A pachinko ball cleaning device for cleaning a pachinko ball by pressing and rotating at least one of the guide plate and the polishing cloth in an opposing direction, wherein the polishing cloth is made of a nonwoven fabric made of a resin fiber. It is characterized by being formed by.

As a result, when the pachinko balls are cleaned, the properties of the non-woven fabric used as the material of the polishing pad have the effect of trapping the dirt of the pachinko balls in the resin fibers, thereby preventing the transfer of the dirt. In addition, a stable cleaning function can be maintained while maintaining the polishing effect for a long time. Therefore, it becomes a polishing cloth suitable for long-term use, and the life can be extended. Therefore, the frequency of replacement of the polishing pad can be reduced and the cost can be reduced.

Here, the nonwoven fabric is a fabric made by mechanically entangled resin fibers such as polyamide, polyester, polyethylene and polypropylene, or chemically or thermally treated. Usually, the oil agent contained in the nonwoven fabric adheres to the pachinko balls and causes contamination of the moving path. Therefore, it is desirable to use a nonwoven fabric which does not contain the oil agent that adheres in the process of manufacturing fibers and cloth. When using a nonwoven fabric containing an oil agent, wash off the oil agent before use.

In another aspect of the invention, when the surface of the pachinko ball is cleaned with a polishing cloth by being brought into pressure contact with the pachinko ball,
Cleaning is performed using a polishing cloth in which a sheet-like reinforcing material is adhered to the back surface of a nonwoven fabric made of a resin fiber.

In this case, since the reinforcing material is adhered to the polishing cloth, the durability is high, and since the sheet is easy to handle, it can be easily attached and detached and the workability for replacement is improved.

The sheet-like reinforcing material having the above-described structure has a thickness of, for example, 50 μm in view of heat resistance at the time of bonding, shape stability, and post-processing properties.
m or more, and a plastic film sheet having a thickness of at least m is preferable, and other paperboard such as synthetic paper and recycled paper can also be used.

Another aspect of the present invention is characterized in that a double-sided polishing cloth is used in which a nonwoven fabric made of a resin fiber is bonded to both sides of a sheet-like reinforcing material.

In this case, since one polishing cloth has polishing surfaces on both sides, if it is reversed and used one by one, two polishing can be used, and one reinforcing material can be effectively used. Thus, a polishing cloth suitable for long-term use can be produced economically.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. The drawing shows a pachinko ball cleaning device. In FIGS. 1 and 2, the pachinko ball cleaning device 11 is provided with a pachinko ball P on a pachinko game table.
A guide plate 12 that is incorporated in a pachinko ball path for supplying or recovering pachinko balls and guides the pachinko balls one by one to a polishing position, a polishing cloth 13 for polishing pachinko balls, a holding mechanism 14 for the polishing cloth, It comprises a polishing cloth attaching / detaching mechanism 15 and a drive motor M for driving the polishing cloth 13 to rotate.

The above-mentioned guide plate 12 has a disk shape, and has a spiral guide groove 16 having a semicircular cross section for guiding a pachinko ball in a spiral shape by opening the outer surface side on one side thereof. A pachinko ball supply pipe 17 is connected to the center of the spiral guide groove 16, and the pachinko balls P supplied here are spiraled from the center position to the outer peripheral position along the spiral guide groove 16 one by one. It is made to go around and is discharged outside through a pachinko ball discharge pipe 18 connected to the outer peripheral portion.

The guide plate 12 is fixedly held via a connecting plate 19 connected to the rear side and a fixed base described later, and a polishing cloth 13 described later is directed toward the spiral guide groove 16 on the front side. It is opposed.

The above-mentioned polishing cloth 13 is made of the above-described guide plate 1.
As shown in FIG. 4A, a non-woven fabric 20 made of a resin fiber and a reinforcing sheet 21 using a plastic film sheet on its back surface are integrally formed as shown in FIG. After bonding, as shown in FIG.
The polishing cloth 13 is constituted. A centering hole 13a for alignment is opened in the center.

The surface of the pachinko ball is cleaned by rotating the polishing cloth 13 with the non-woven fabric 20 facing the spiral guide groove 16 of the guide plate 12 while keeping the non-woven fabric 20 in pressure contact therewith.

In this case, the nonwoven fabric 20 has a function of confining the dirt of the pachinko balls in the resin fibers of the nonwoven fabric 20 when the pachinko balls are cleaned due to the characteristics of the nonwoven fabric itself. The nonwoven fabric 20 can always provide a stable cleaning action to the pachinko balls P. For this reason, the polishing effect can be maintained for a long time, and the life of the polishing pad 13 can be prolonged and the cost can be reduced.

The above-mentioned nonwoven fabric 20 is a fabric made by mechanically or chemically or thermally treating resin fibers such as polyamide, polyester, polyethylene and polypropylene. In this case, the oil agent contained in the nonwoven fabric is used. Since non-woven fabrics adhere to pachinko balls and cause contamination of the movement path, it is desirable to use a non-woven fabric that does not include an oil agent that adheres in the process of manufacturing fibers and cloth. When using a nonwoven fabric containing an oil agent, wash off the oil agent before use.

When a non-woven fabric is formed using resin fibers, short fibers are apt to generate fiber waste, and long fibers are suitable. Further, since the finer the fiber diameter, the better the wiping effect can be obtained, 1 denier or less, preferably 0.5 denier or less is suitable.

Next, since the reinforcing sheet 21 has the same circular shape and is integrally adhered to the back surface of the non-woven fabric 20, it is rich in durability and has a circular sheet shape in which deformation is suppressed. The sheet is easy to be attached and detached, and the workability for replacement is improved.

At this time, the reinforcing sheet 21 has a thickness of, for example, 50 to 2 due to heat resistance at the time of bonding, shape stability, and post-processability.
A plastic film sheet such as a 00 μm polyethylene terephthalate film is preferred. In addition, a paperboard such as synthetic paper or recycled paper can be used as the reinforcing sheet.

In bonding the nonwoven fabric 20 and the reinforcing sheet 21, any of a solvent type adhesive, an emulsion adhesive, a reactive type adhesive and a hot melt adhesive may be used. Hot melt adhesives are desirable on the surface. The adhesive strength at this time is 100 g / 2.
It preferably has an adhesive strength of 5 mm or more.

A holding mechanism 14 for holding the above-mentioned polishing cloth 13
Is provided with a circular holding plate 22 slightly smaller in diameter than the polishing cloth 13,
One side of the circular holding plate 22 is set as a polishing cloth mounting surface,
Here, the polishing cloth 13 is attached with the reinforcing sheet 21 side facing each other. A rotary drive shaft 23 is integrally connected to the center of the other one surface, and a main shaft of a drive motor M is connected to the rotary drive shaft 23 to rotate the circular holding plate 22 at a constant speed. The rotation drive shaft 23 is rotatably supported by a support frame 25 via a bearing 24.

The attachment / detachment mechanism 15 for allowing attachment / detachment of the above-mentioned polishing cloth.
Is mounted so that the fixed base 26 and the guide plate 12 are axially opposed to each other, and the guide plate 12 is allowed to slide in the axial direction with the connecting shaft 27, the urging spring 28 and the slide pin 29 interposed between the opposed surfaces. ing.

At this time, the connecting shaft 27 connects the fixed base 26 and the guide plate 12, and the guide plate 12 is separated from the fixed base 26 by the urging force of the urging spring 28 interposed between the connecting portions. The polishing pad 13 is pressed and urged, and the above-described polishing cloth 13 is opposed to the pressed and urged guide plate 12.

In this case, the slide pin 29 is provided so as to be stepped from a small diameter to a large diameter in order from the distal end to the proximal end, and the distal end penetrates through the center hole 30 of the guide plate 12, and the distal end of the pin 29 In a state in which the center portion 31 of the circular holding plate 22 is desired, the axial step portion 32 at the penetrated distal end receives the pressing force of the pressing spring 33 and presses and holds the central portion of the polishing pad 13.

As a result, the polishing pad 13 is positioned and fixed at a fixed position. Also, this slide pin 29
When the pin portion 34 formed at the base end of the pin is pinched with a fingertip and slid in the retreating direction, the pin 29 of the pin 29 is retracted against the pressing force of the pressing spring 33 so that the axial step portion 32 on the tip side is retreated and the polishing cloth is removed. 13 is released, and the polishing cloth 13 can be easily replaced by detaching operation during this time.

The operation of the pachinko ball cleaning device 11 thus configured will be described below. First, when the drive motor M is driven, the polishing cloth 13 integrated with the circular holding plate 22 starts to rotate at a constant speed based on the drive motor M. At this time, the polishing pad 13 is brought into pressure contact with the pachinko balls P on the side of the guide plate 12 which faces the polishing pad 13, and the polishing pad 13 wipes off the dirt attached to the surfaces of the pachinko balls P by frictional contact force. To remove.

In this case, the pachinko balls P are conveyed while rolling in the spiral guide groove 16, and the pachinko ball discharge pipe 1
By the time it is discharged to 8, the entire peripheral surface is in contact with the polishing pad 13 and is beautifully polished. In particular, since the polishing cloth 13 has a function of confining the dirt of the pachinko balls P in the resin fibers of the nonwoven fabric 20 due to the characteristics of the nonwoven fabric 20, the transfer of the dirt from the polishing cloth 13 can be prevented, and the polishing effect can be obtained. Is maintained for a long time, and a stable cleaning function can be maintained.

When the rotation of the drive motor M is stopped, the rotation of the polishing pad 13 integral with the circular holding plate 22 is stopped, and the cleaning operation is stopped. Therefore, the cleaning operation can be arbitrarily started / stopped only by turning ON / OFF the drive motor M.

Incidentally, dirt adhering to the polishing cloth 13 in which the pachinko balls were polished was enlarged and analyzed using a microscope.
It was confirmed that oily stains had permeated the inside of the resin fiber. From this, it was recognized that transfer of dirt was suppressed and a cleaning effect of the nonwoven fabric suitable for long-term use was obtained.

Next, when replacing the polishing cloth 13 with a long-term use, first, to remove the polishing cloth 13, hold the outer peripheral portion of the polishing cloth 13 by hand while holding the knob 34 of the slide pin 29.
Is pulled in the evacuation direction and slid, the tip of the pin 29 is withdrawn from the center hole 31 of the circular holding plate 22 and pulled out.

At this time, the polishing cloth 13 is released from the circular holding plate 22 by releasing the pressing and holding action of the step portion 32 on the tip side of the slide pin, and is allowed to be removed from the circular holding plate 22, and the outer peripheral edge of the polishing cloth 13 is pinched with a fingertip. It can be removed by pulling it outward.

Subsequently, when the polishing pad 13 is mounted, a new polishing pad 13 is inserted to the set position while the slide pin 29 is pulled in the retracting direction, and the centering hole 13a is inserted.
When the position is set to the set position, the slide pin 29 is released. Then, the slide pin 29 slides back to the original position, and the tip end of the pin 29 enters the centering hole 13a of the polishing cloth 13 and the center hole 31 of the circular holding plate 22, and is positioned and at the same time the polishing cloth 13 Is pressed and held by the axial step portion 32 of the pin 29, and the polishing pad 13 is pressed and held at a fixed position and attached.

In this case, the polishing cloth 13 has an advantage that it is rich in durability because the reinforcing sheet 21 is adhered to one surface, and it is easy to handle while maintaining one flat sheet shape that is not deformed. Can be easily handled and operated with the fingertip picked up. For this reason, the attachment and detachment of the polishing pad 13 is easy, the workability for replacement is improved, and operation suitable for long-term cleaning of pachinko balls can be achieved.

FIG. 5 shows a polishing cloth according to another embodiment of the present invention. Since this polishing cloth is the same as the nonwoven fabric and the reinforcing sheet constituting the polishing cloth described above, only different points will be described.

As shown in FIG. 5A, this polishing cloth 51
5A and 5B show a first non-woven fabric 53 and a second non-woven fabric 54 made of resin fibers attached to both sides of a circular reinforcing sheet 52, respectively.
As shown in (B), it is configured integrally with three layers.

In this case, since one polishing cloth 51 has polishing surfaces on both sides, if it is turned over and used one by one,
Polishing for the number of sheets can be achieved, and a polishing cloth suitable for long-term use can be economically manufactured by effectively using one reinforcing sheet 52.

Also in this case, since the reinforcing sheet 52 has the same circular shape and is integrally adhered to the polishing cloth 51, the sheet is highly durable and easy to handle to maintain a circular sheet with suppressed deformation. It is easy to attach and detach, and the replacement workability is improved.

As described above, when the pachinko balls are cleaned, the effect of confining the dirt wiped from the pachinko balls into the resin fibers of the nonwoven fabric can be obtained due to the properties of the nonwoven fabric used as the material of the polishing cloth. The transfer of dirt to other pachinko balls can be prevented. In addition, since the reinforcing sheet is provided, the sheet is highly durable, and the sheet is easy to handle.

In the correspondence between the structure of the present invention and the above-described embodiment, the spiral pachinko ball guide groove of the present invention corresponds to the spiral guide groove 16 of the embodiment, and similarly, the reinforcing material is However, the present invention can be applied based on the technical concept described in the claims, and is not limited to only the configuration of the above-described embodiment.

Next, the present invention will be specifically described with reference to examples and reference examples.

First Embodiment A hot melt adhesive was applied to a reinforcing sheet using a polyethylene terephthalate film having a thickness of 100 μm, and then a polyamide long-fiber nonwoven fabric containing no oil agent (for example, Niace RO manufactured by Unitika Ltd.)
905 WTO) to prepare a polishing cloth substrate. Subsequently, the polishing cloth substrate was punched into the same circular shape as the polishing cloth 13 described above to prepare a polishing cloth.

Using this polishing cloth in a pachinko ball cleaning apparatus, dirt adhering to the polishing cloth when used for polishing pachinko balls for about 100 hours was enlarged and analyzed with a microscope. It was confirmed that a relatively large amount of greasy dirt was permeated.

[Second Embodiment] In the same manner as in the first embodiment, except that a polyamide long fiber nonwoven fabric is used, an olefin long fiber nonwoven fabric (for example, Elves S0703WD manufactured by Unitika Ltd.) is used.
O) was washed with an organic solvent (toluene) to remove the oil agent to prepare a polishing cloth base, and then the polishing cloth base was punched into the same circular shape as the above-mentioned polishing cloth 13 to prepare a polishing cloth.

Using this polishing cloth in a pachinko ball cleaning apparatus, dirt adhering to the polishing cloth when used for polishing the pachinko balls for about 100 hours was enlarged and analyzed by a microscope. It was confirmed that a lot of greasy dirt was permeated.

[Third Embodiment] Similar to the first embodiment, except that a polyester-based long-fiber nonwoven fabric (for example, Marix 90503) is washed with an organic solvent (toluene) to remove an oil agent instead of a polyamide long-fiber nonwoven fabric. A polishing material was prepared, and then the polishing cloth substrate was punched into the same circular shape as the polishing cloth 13 described above to prepare a polishing cloth.

Using this polishing cloth in a pachinko ball cleaning apparatus, dirt adhering to the polishing cloth when used for polishing utilization of pachinko balls for about 100 hours was enlarged and analyzed with a microscope. It was confirmed that the oily stain was slightly impregnated.

Reference Example A polishing cloth substrate was prepared in the same manner as in the third embodiment except that the oil agent of the polyester long-fiber non-woven fabric was not washed off.
A polishing cloth was prepared by punching into the same circular shape as No. 3.

Using this polishing cloth in a pachinko ball cleaning apparatus, dirt adhering to the polishing cloth when used for polishing pachinko balls for about 100 hours was enlarged and analyzed by a microscope. It was confirmed that the oily stain was slightly infiltrated.

Comparing the cleaning effects of a plurality of polishing cloths performed as described above, the cleaning effects were obtained in the order of the second embodiment> the first embodiment> the third embodiment> the reference example.

As a result, it was confirmed that the polishing cloth of the second embodiment exhibited the highest cleaning ability, and was excellent in confining the stains of the pachinko balls in the resin fibers of the nonwoven fabric. Further, as can be seen from the Reference Examples, it was recognized that the nonwoven fabric containing the oil agent had little effect of confining greasy dirt in the fibers.

As a result, it was recognized that the nonwoven fabric effectively functions to prevent the transfer of dirt, and in particular, the nonwoven fabric containing no oil agent can always provide a stable cleaning action to pachinko balls.

[0055]

According to the present invention, dirt wiped from a pachinko ball is confined in the resin fiber of the nonwoven fabric, so that transfer of the dirt to another pachinko ball can be prevented, and the polishing effect can be maintained for a long period of time. it can.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part showing a pachinko ball cleaning device of the present invention.

FIG. 2 is a vertical sectional view showing a main part of the pachinko ball cleaning device of the present invention.

FIG. 3 is a schematic front view showing a guide state of a spiral guide groove of the present invention.

FIG. 4 is a perspective view showing a polishing cloth of the present invention.

FIG. 5 is a perspective view showing a polishing pad according to another embodiment of the present invention.

[Explanation of symbols]

 11 Pachinko ball cleaning device 12 Guide plate 13, 51 Polishing cloth 16 Spiral guide groove 20, 53, 54 Nonwoven fabric 21, 52 Reinforcement sheet P Pachinko ball

 ──────────────────────────────────────────────────の Continuation of the front page (71) Applicant 598174004 Co., Ltd. Shoei Giken 3790-2, Nakatsu, Aikawa-cho, Aiko-gun, Kanagawa Prefecture Inside OMRON Corporation (72) Inventor Yasuo Kasahara 801 Minami-Fudo-cho, Higashi-iri, Shiokoji-dori, Shimogyo-ku, Kyoto-shi Inside OMRON Corporation (72) Inventor Satoru Noguchi 4085 Nakatsu, Aikawa-cho, Aiko-gun, Kanagawa Pref. (72) Inventor Satoshi Watanabe 2-3-20 Kobuchi, Sagamihara-shi, Kanagawa Prefecture CTC Co., Ltd. (72) Masakatsu Matsuno 3790 Nakatsu, Aikawa-cho, Aiko-gun, Kanagawa 2 F-term in Matsuei Giken Co., Ltd. (Reference) 2C088 BA92 BA98 BA99 3C058 AA09 AA12 AA14 AA16 AB03 AB04 AC05 CA01

Claims (3)

[Claims] 1. A guide plate having a spiral pachinko ball guide groove formed by opening one side thereof, and a circular polishing cloth opposed to one side open side of the guide plate. A pachinko ball cleaning device, wherein at least one of the pachinko ball cleaning devices is driven to rotate while being pressed in an opposing direction, wherein the polishing cloth is formed using a nonwoven fabric made of a resin fiber. 2. A polishing cloth for cleaning the surface of a pachinko ball by pressure contact with the pachinko ball, wherein the polishing cloth is formed by bonding a sheet-like reinforcing material to the back surface of a nonwoven fabric made of a resin fiber. 3. A polishing cloth for cleaning the surface of a pachinko ball by pressure contact with the pachinko ball, wherein a nonwoven fabric made of a resin fiber is provided on both sides of a sheet-like reinforcing material. cloth.