JP4418816B2 - Medal cleaning device - Google Patents

Description

  The present invention is provided in a game hall where a large number of gaming machines such as slot machines, coin game machines, and pachinko machines that use medals (same as coins and circular chips) are used as game media, and for cleaning the medals. It relates to the device.

Since medals used as game media in amusement halls are soiled by the player's hand dirt, friction with the circulation passage, etc., a medal cleaning device has been conventionally provided in the circulation passage to keep the medals clean. I am doing so.
The following Patent Documents 1 to 4 exemplify a conventional medal cleaning device (same as a coin polishing device). In Patent Documents 1 and 2, while the medals are leveled, the medals are sandwiched between a conveyor belt and a guide and rotated. The polishing cloth is configured to be slidably brought into contact with the upper and lower surfaces of the medal. Moreover, in patent document 3, the medal pushing means was provided and it was comprised so that a medal might be extruded between upper and lower polishing cloth. In Patent Document 4, a medal transport device is configured by connecting a large number of medal holding members each having a medal holding frame portion to a plate material having a thickness equal to or less than the thickness of the medal, and a polishing cloth is disposed so as to sandwich the medal from both sides. The both sides of the medal conveyed by the medal conveying device are polished and cleaned by the polishing cloth.
Japanese Patent Laid-Open No. 7-220134 JP-A-7-220136 Patent No. 3660112 Japanese Patent No. 3767813

  By the way, there are generally medals having a diameter of 30 mm and medals having a diameter of 25 mm, and the medals that can be used differ depending on the type of gaming machine. For this reason, in amusement arcades where a large number of gaming machines are installed, there are currently two types of large and small medals in circulation, the problem of how to handle these two types of medals without fail, and how to save equipment. The problem is whether both medals can be processed in a space-saving manner.

However, the conventional medal cleaning devices as shown in the above-mentioned Patent Documents 1 to 3 are only compatible with medals having a constant diameter, and therefore cannot be dealt with when large and small medals are mixed in. There was a problem of breakdown and stoppage.
Further, the medal cleaning device disclosed in Patent Document 4 has a complicated configuration of the transport device, and the size of the device is increased, and both surfaces of the medal are simultaneously brought into contact with the polishing cloth for cleaning. However, there was a problem that a sufficient frictional force was not applied, and the cleaning was not performed cleanly.
The present invention seeks to eliminate these problems.

In order to achieve the above object, a medal cleaning apparatus according to claim 1 is a medal cleaning apparatus that sequentially cleans medals one side at a time by a first cleaning section and a second cleaning section, and the first cleaning section is endless. Conveyors for transporting medals by a belt-shaped transport belt and endless belt-shaped wet wipes impregnated with a cleaning liquid are stretched in parallel with the transport surface of the transport belt at an appropriate distance from each other, and the wet wiping is performed. A wiping cloth supporting mechanism that wipes the surface of the medal with the wet wiping cloth by running the cloth, and a pressing plate is provided on the back surface of the wet wiping cloth, and the wet wiping cloth is elastically applied to the medal surface by the pressing plate. The second cleaning unit is arranged to dispose the conveyor and the wiping support mechanism in an inverted relationship between the conveyor and the wiping support mechanism in the first cleaning unit. Conveyor belt Nbeya is characterized in that to move between the wet wipers and conveying belt medals by those of high friction by forming fine irregularities on the surface.
Thus, by providing the 1st washing | cleaning part and the 2nd washing | cleaning part, it becomes possible to wash | clean medals beautifully one side at a time.

The medal cleaning device according to claim 2 is a medal cleaning device that sequentially cleans medals one side at a time by the first cleaning unit and the second cleaning unit, and the first cleaning unit includes an endless transport belt. Engagement portions whose height is lower than the thickness of the medal are formed side by side in the width direction of the transport belt at intervals smaller than the diameter of the medal, and the transport surface of the transport belt faces obliquely upward from the medal collection box A conveyor in which the medals of the medal collection box are engaged between the engaging portions and conveyed obliquely upward by supporting the medallion box in an upright posture, and an endless belt-like wet wipe impregnated with a cleaning liquid A wiping cloth that stretches the cloth in parallel with the conveying surface of the conveying belt at an appropriate interval, and allows the surface of the medal to be wiped by the wet wiping cloth by running the wet wiping cloth in a fixed direction. Branch And a wiping cloth pressing mechanism that elastically presses the wet wiping cloth against the medal surface by the pressing plate. The conveyor and wiper support mechanism are arranged in a relationship where the top and bottom are turned upside down, and the conveyor belt of the conveyor has a high frictional property by forming fine irregularities on the surface, so that the medals are wet wiped And the conveyor belt are moved obliquely downward.
As described above, in the first cleaning unit, a high polishing effect can be obtained by pressing the wet wiping cloth against the medal conveyed obliquely upward against the gravity to polish the medal. Further, in the second cleaning unit, the medal moves diagonally downward due to its own weight, so there is no possibility that the medal is jammed in the middle, and the movement is smooth.

According to a third aspect of the present invention, in the medal cleaning device, the traveling speed of the transport belt of the first cleaning unit is set lower than the traveling speed of the transport belt of the second cleaning unit, and the first cleaning unit In addition, the traveling speed of the wet wipes of the second cleaning unit is set to be lower than the traveling speed of the respective conveyor belts.
For this reason, it is difficult for troubles such as medals to stay in the second cleaning section, and the medals are always transported smoothly.

The invention described in claim 4 is characterized in that , in the medal cleaning device, the conveyor of the first cleaning section and the conveyor of the second cleaning section are arranged so as to be connected in a front “H” shape via a transfer plate. To do.
For this reason, even if a long wet wipe is provided for each of the first cleaning unit and the second cleaning unit, the overall length in a plan view is suppressed, and no installation space is required, so the cleaning device can be miniaturized.

According to a fifth aspect of the present invention, in the medal cleaning apparatus, a guide roller is rotatably supported on a hollow support shaft having a plurality of small holes formed in the peripheral wall, and the wet wipe is applied to the guide roller. The cleaning liquid is stretched, and the cleaning liquid supplied into the support shaft is discharged from the small holes so that the cleaning liquid is replenished to the wet wiping cloth in a fixed amount.
For this reason, the wet wiping cloth is always kept in an appropriate wet state, and the cleaning effect can be enhanced.

According to a sixth aspect of the present invention, in the medal washing apparatus, the medal aggregating device is provided with a medal agitating device for electrically moving the protrusion rod from the bottom portion.
For this reason, the medals in the medal collection box can be surely sent out on the transport surface of the conveyor.

  Even if medals of different sizes are mixed in, they can be washed without problems. For this reason, the equipment cost, installation space, etc. of the medal washing apparatus in the game hall are reduced. In addition, the medal can be washed more neatly.

  FIG. 1 is a front elevational view of a medal cleaning device according to the present invention. In the figure, A is the first cleaning unit, B is the second cleaning unit, 10 is the medal collection box, and the medals M1 and M2 accommodated in the medal collection box are the first cleaning unit A and the second cleaning unit B. By passing, it is washed one by one in order and reaches the hopper 11.

  The 1st washing | cleaning part A and the 2nd washing | cleaning part B are formed in the front surface of the assembly board 12 supported vertically, 20a is a conveyor of the 1st washing | cleaning part A, 20b is a conveyor of the 2nd washing | cleaning part B. . The medal collecting box 10 has an upper surface 10a open and a bottom surface 10b formed as an inclined surface, and a lower end portion of the conveyor 20a of the first cleaning unit A faces the inclined lower side surface.

  2 is an enlarged longitudinal sectional view of the first cleaning section A, FIG. 3 is a sectional view taken along the line AA in FIG. 4, and an endless transport belt 21a of the conveyor 20a is composed of a constant width belt-like rubber cloth belt. As shown in the perspective view, a number of engaging portions 22a whose height is slightly lower than the thickness of the medals M1 and M2 (height 1.4 mm) and whose diameter is about 3 mm are arranged in the width direction of the belt surface. They are formed side by side at intervals of 22 mm narrower than the diameters of the medals M1 and M2, and are continuously formed at intervals of 35 mm wider than the diameters of the medals M1 and M2 in the longitudinal direction of the belt surface. Reference numerals 23a and 24a denote a driving roller and a driven roller of the conveyor 20a around which the conveyor belt 21a is wound. The conveyor 20a is supported so that the conveying surface of the conveying belt 21a is inclined upward (standing angle: about 70 degrees) from the medal collecting box 10 and drives the conveying belt 21a in the direction indicated by the arrow. As a result, the medals M1 and M2 in the medal collection box are engaged with each other in a state of being fitted between a pair of adjacent engaging portions 22a as shown in FIG.

  Reference numeral 13 denotes a medal agitating device provided in the medal collecting box 10, and the medal agitating device is provided so as to penetrate the plurality of protruding rods 14 in the bottom surface 10b as shown in FIG. A plurality of eccentric cams 16 are provided adjacent to each other on 15 rotation shafts, a ring 17 is provided so as to be in sliding contact with the outer periphery of the eccentric cam 16, and a lower end portion of each protruding rod 14 is connected to the ring, When the eccentric cam 16 rotates, the thrust bar 14 moves in and out of the medal collection box 10, so that the medals M1 and M2 in the medal collection box 10 are agitated. The medals M1 and M2 in the box 10 are easily engaged between the engaging portions 22a of the transport belt 21a.

  In addition, 30a stretches an endless belt-shaped wet wiping cloth 31a impregnated with a cleaning liquid in parallel to the conveying surface of the conveying belt 21a at an appropriate interval and travels in a fixed direction. By the wiping cloth supporting mechanism that wipes the surfaces of the medals M1 and M2 with the wet wiping cloth, the wet wiping cloth 31a is wound around the guide roller 32a, the guide roller 33a, and the driving rubber roller 34a, and the tension roller 35a is The wet wipe is stretched in parallel with the conveyance surface of the conveyance belt 21a by being pressed against the wet wipe 31a, and the drive rubber roller 34a is rotated to move the wet wipe in the direction indicated by the arrow. Let it run. The traveling speed of the wet wipe 31a is set to be lower (approximately 1/10 speed) than the traveling speed of the transport belt 21a. In this way, by causing the wet wipe 31a to run in the same direction as the medal conveyance direction and at a lower speed than the conveyance belt, the wet wipe 31a applies an excessive load to the medal being conveyed due to friction, and the medal is It prevents it from jumping out on both sides of the conveyor belt.

Further, as shown in FIG. 6, the guide roller 32a has a plurality of roller members 36a that are divided in the axial direction rotatably supported by a hollow support shaft 37a, and a plurality of roller members 36a are provided on the peripheral wall of the support shaft. A small hole 38a is opened.
Then, one end of the support shaft is communicated with the cleaning liquid tank via an electromagnetic valve, and the electromagnetic valve is opened every 5 minutes, for example, by the operation of a timer, so that the cleaning liquid is supplied to the guide roller 32a from the cleaning roller, for example, 2 to 3 cc. The wet wiping cloth 31a is always maintained in an appropriate wet state by being replenished one by one and discharging the cleaning liquid from the small holes 38a.
A wet sensor for detecting the wet state of the wet wipe 31a may be provided so that the cleaning liquid is automatically replenished from the cleaning liquid tank by the detection, so that the wet wipe 31a is maintained in an appropriate wet state. .

  Reference numeral 40a denotes a wiping cloth pressing mechanism provided to elastically press the wet wiping cloth 31a on the surfaces of the medals M1 and M2 conveyed by the conveying belt 21a. The wiping cloth pressing mechanism is shown in FIG. In this way, a synthetic resin pressing plate 42a having a plurality of longitudinal grooves 41a formed on the surface at appropriate intervals is disposed inside the cover plate 43a, and a support shaft 44a fixedly planted on the back surface of the pressing plate 42a is provided. The cover plate 43a is inserted into the cover plate 43a, and an elastic body 45a such as a coil spring is interposed between the pressing plate 42a and the cover plate 43a in a compressed state, and the cover plate 43a is attached to the frame of the conveyor 20a. The pressing plate 42a is configured to be able to press the wet wipe 31a from the back by the elasticity of the elastic body 45a by being detachably assembled by the 46a. The cover plate 43a and the pressing plate 42a are detached from the conveyor frame by loosening the knob screw 46a so that the wet wipe 31a can be replaced as necessary.

  Next, the structure of the 2nd washing | cleaning part B is demonstrated. In the second cleaning section B, the conveyor 20b and the wiping cloth support mechanism 30b are arranged in a relationship where the upper and lower sides of the first cleaning section A are turned upside down. The conveyor belt 21b of the conveyor 20b and the wet wiping cloth 31b of the wiping cloth support mechanism 30b The conveyance surface formed by is inclined obliquely downward (downward tilt angle: about 30 degrees). 47 is for receiving the medals M1 and M2 discharged from the upper end of the conveyor 20a of the first cleaning section A and guiding the medals to the distance between the transport belt 21b of the second cleaning section B and the wet wipe 31b by its own weight. It is a transfer board provided in an inclined shape. For this reason, the conveyor 20a of the 1st washing | cleaning part A and the conveyor 20b of the 2nd washing | cleaning part B are arrange | positioned on the front surface of the assembly | attachment board 12 so that it may continue in a front "H" shape via the transfer board 47. The conveyor 20b is formed by winding a conveyor belt 21b made of a constant-width belt-like rubber belt around a driving roller 23b and a driven roller 24b in the same manner as the conveyor 20a. The conveyor belt 21b has a conveyor belt 21a on the surface. Such an engaging portion is not formed, and as shown in FIG. 8, by using a member having fine irregularities on the surface, high frictional properties can be obtained with respect to the medal surface. For this reason, the medals M1 and M2 sliding down from the transfer plate 47 are transported diagonally downward between the wet wipes 31b by driving the transport belt 21b in the direction indicated by the arrow. Thus, since the engaging part like the conveying belt 21a is not formed in the conveying belt 21b, there is no possibility that the medal rides on the engaging part in the second cleaning part B. There is no trouble that the sent medals stay, and the medals can always be smoothly transported.

  The traveling speed of the conveyor belt 21b is set slightly higher than the traveling speed of the conveyor belt 21a. This is to prevent the medals transported by the transport belt 21a from accumulating on the transfer plate 47. Similarly to the wiping support mechanism 30a, the wiping support mechanism 30b has a wet wiping cloth 31b wound around a guide roller 32b, a guide roller 33b, and a driving rubber roller 34b, and is driven by the driving rubber roller 34a in the direction indicated by the arrow. The vehicle travels at a lower speed (about 1/10 speed) than the travel speed of 21b. The drive rollers 24a and 24b, the drive rubber rollers 34a and 34b, and the like are driven by a transmission mechanism such as a sprocket, chain, and gear provided on the back side of the assembly plate 12 and a motor (not shown) as a drive source. Driven at speed.

  Similarly to the guide roller 32a, the guide roller 32b is replenished with the cleaning liquid from the cleaning liquid tank, and the wet wiping cloth 31b is always kept in a proper wet state. Similar to the wiping cloth pressing mechanism 40a, the wiping cloth pressing mechanism 40b has a pressing plate 42b disposed inside the cover plate 43b, and a support shaft 44b fixed on the back surface of the pressing plate 42b is inserted into the cover plate 43b. In addition, an elastic body 45b such as a coil spring is interposed between the pressing plate 42b and the cover plate 43b in a compressed state, and the cover plate 43b is detachably assembled to both side frames of the conveyor 20b by a plurality of knob screws 46b. Accordingly, the pressing plate 42b presses the wet wiping cloth 31b by the elasticity of the elastic body 45b, and the wet wiping cloth 31b is transported downward on the surface (lower surface) of the medals M1 and M2 by the transport belt 21b. It is comprised so that 31b may be pressed elastically.

In the medal cleaning apparatus configured as described above, the medals M1 and M2 having different diameters can be simultaneously conveyed by engaging with the engaging portion 22a of the conveying belt 21a, and the wet wipe 31a is pressed against the surface of the medal. The medals can be surely wiped off by pressing the plate 42a with appropriate pressing force. Further, after passing through the first cleaning section A, the medals M1 and M2 reach the second cleaning section B and are transported obliquely downward by friction with the transport belt 21b, and a wet wiping cloth 31b is pressure-bonded to the lower surface of the medals. By doing so, the medals M1 and M2 can be cleaned cleanly one by one.
For this reason, it is not necessary to install two or more cleaning devices for each medal size as a game facility, and the equipment cost and installation space can be greatly reduced, and both sides are always cleaned cleanly in the game facility. Medals can be circulated.

  In addition, although the engaging part 22a of the conveyance belt 21a illustrated in the above embodiment is a short cylindrical protrusion, in the present invention, the engaging part 22a is not limited to this shape, and the medals M1 and M2 are used. As long as it can be locked to the surface of the conveyor belt, it may be formed in other forms, for example, a U-shaped engaging portion is formed. In addition, although the fine unevenness (concave portion or convex portion) illustrated in the above embodiment is formed in a striped pattern on the conveyor belt 21b, other conveyor belts 21b may be used to increase the friction coefficient with the medals M1 and M2. Of course, it may be formed into a form.

The front view which carried out the longitudinal section of the medal washing device concerning the present invention. The principal part expanded longitudinal cross-sectional view of FIG. FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. The perspective view of the conveyance belt of the 1st washing | cleaning part in the medal washing apparatus which concerns on this invention. The longitudinal cross-sectional view of the medal stirring apparatus in FIG. The perspective view of the guide roller in the medal cleaning apparatus which concerns on this invention. The perspective view of the press board of the wiping cloth support mechanism in the medal cleaning apparatus which concerns on this invention. The perspective view of the conveyance belt of the 2nd washing | cleaning part in the medal washing apparatus which concerns on this invention.

Explanation of symbols

A 1st washing | cleaning part B 2nd washing | cleaning part M1, M2 Medal 10 Medals collection box 12 Assembly plate 13 Medal agitation device 14 Raising bar 20a, 20b Conveyor 21a, 21b Conveying belt 22a, 22b Engagement part 30a, 30b Wiping cloth Support mechanism 31a, 31b Wet wipe 32a, 32b Guide roller 33a, 33b Guide roller 36a, 36b Roller member 37a, 37b Support shaft 38a, 38b Small hole 40a, 40b Wiping cloth pressing mechanism 41a, 41b Vertical groove 42a, 42b Press plate 43a, 43b Cover plate 45a, 45b Elastic body 47 Transfer plate

Claims (6)

  A medal cleaning device that sequentially cleans medals one side at a time by a first cleaning unit and a second cleaning unit, wherein the first cleaning unit includes a conveyor configured to transport medals by an endless transport belt, and a cleaning liquid. The impregnated endless belt-shaped wet wiping cloth is stretched in parallel with a distance from the conveying surface of the conveying belt, and the medal surface is wiped by the wet wiping cloth by running the wet wiping cloth. A wiping cloth supporting mechanism, and a wiping cloth pressing mechanism that elastically presses the wet wiping cloth against the medal surface with the pressing plate provided on the back surface of the wet wiping cloth. The conveyor and wiper support mechanism are disposed in an inverted relationship between the conveyor and the wiper support mechanism in the first cleaning section, and the conveyor belt has high friction by forming fine irregularities on the surface. Medals cleaning apparatus characterized by a medal by those of in which is moved between the wet wipers and conveying belt.   A medal cleaning device that sequentially cleans medals one side at a time by a first cleaning unit and a second cleaning unit, wherein the first cleaning unit is engaged with a surface of an endless transport belt whose height is lower than the thickness of the medal. Are formed side by side in the width direction of the transport belt at intervals narrower than the diameter of the medals, and the medals are supported so that the transport surface of the transport belt is in an upright posture obliquely upward from the medal collection box. A conveyor in which the medals of the assembly box are engaged between the engaging portions and conveyed obliquely upward, and an endless belt-shaped wet wipe impregnated with the cleaning liquid are appropriately spaced from the conveying surface of the conveying belt. And a wiping support mechanism for wiping the surface of the medal with the wet wiping cloth by running the wet wiping cloth in a fixed direction, and a pressing plate on the back surface of the wet wiping cloth In And a wiping cloth pressing mechanism that elastically presses the wet wiping cloth against the surface of the medal by the pressing plate, and the second cleaning section has a conveyor and a wiping cloth in a relationship in which the top and bottom of the first cleaning section are turned upside down. A support mechanism is provided, and the conveyor belt of the conveyor is made of high friction by forming fine irregularities on the surface, thereby moving the medal diagonally downward between the wet wipe and the conveyor belt. Medal washing device characterized by being a thing. The traveling speed of the transport belt of the first cleaning unit is set to be lower than the traveling speed of the transport belt of the second cleaning unit, and the traveling speed of the wet wipes of the first cleaning unit and the second cleaning unit is set to each of the transports. 3. The medal washing apparatus according to claim 1 , wherein the medal washing apparatus is set at a lower speed than a running speed of the belt. The medal according to any one of claims 1 to 3 , wherein the conveyor of the first cleaning section and the conveyor of the second cleaning section are arranged so as to be continuous in a front "H" shape via a transfer plate. Cleaning device. A guide roller is rotatably supported on a hollow spindle having a plurality of small holes formed in the peripheral wall, the wet wipe is stretched on the guide roller, and the cleaning liquid supplied into the spindle is reduced in the small size. medals cleaning apparatus according to any one washing liquid to the wet wipers of claims 1-4, characterized in that it has to be replenished by quantified by discharging from the hole. The medal washing apparatus according to any one of claims 2 to 5 , wherein a medal agitation device is provided in the medal collecting box for electrically moving the protruding rod from the bottom.

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