JP4268858B2 - Medal cleaning device - Google Patents

Description

  The present invention relates to a medal cleaning apparatus that cleans medals used in, for example, a slot machine.

  As a medal cleaning device for cleaning medals used in a slot machine or the like, generally, a medal transfer means for transferring medals, a cleaning means for cleaning medals transferred by the medal transfer means with a cleaning liquid, and this cleaning means A device provided with a cleaning liquid removing means for removing the cleaning liquid attached to the medal is known.

For example, in Patent Document 1 by the applicant of the present invention, a pair of upper and lower water-absorbing rollers that absorb cleaning liquid adhering to medals and a pair of upper and lower water-absorbing rollers that are respectively provided and rotated and absorb water. There is disclosed a technique of a medal supply device including a cleaning liquid removing unit including a pair of upper and lower squeezing rollers that squeeze the cleaning liquid absorbed by the water absorption roller while pressing the roller.
JP 2000-296256 A

  However, in the prior art of the above-described medal cleaning apparatus, the squeezing roller is provided on the upstream side of the water absorption roller from the idea that the cleaning liquid is squeezed on the upstream side of the water absorption roller and does not flow downstream. For this reason, the upper squeezing roller inevitably retains the cleaning water squeezed by the squeezing roller slightly above the contact portion between the squeezing roller and the water-absorbing roller, thereby improving the drainage efficiency of the cleaning liquid removing means. There was a limit.

  The present invention has been made in view of the above problems, and provides a medal cleaning device that can smoothly drain the cleaning water squeezed by the upper squeeze roller and can significantly improve the drainage efficiency of the medal cleaning device. It is an issue.

In order to solve the above problems, the present invention provides a medal transfer means for transferring a medal, a cleaning means for cleaning the medal transferred by the medal transfer means with a cleaning liquid, and the cleaning means is attached to the upper and lower sides of the medal. And a pair of upper water-absorbing rollers that absorb each of the cleaning liquids by interposing the medal between them, and a pair of water-absorbing rollers on the upper lower side and a pair of water-absorbing rollers that rotate and press the water-absorbing rollers while rotating. And a pair of upper and lower squeezing rollers that squeeze the cleaning liquid absorbed by the upper squeezing roller , wherein the upper squeezing roller has an axial center that is lower than the upper water absorbing roller. The squeeze between the side suction rollers and the lower suction roller is provided on the downstream side and the lower side . On the other hand, the shaft center of the lower squeezing roller is the same as that of the lower suction roller. Lower Provided in the discharge direction upstream side of the medals written meshes between water roller and the upper water roller, a lower upper draw roller, the upper part than the discharge area of the medal discharged from both water roller, A drainage receptacle for receiving wash water squeezed from the upper water absorption roller is arranged.

According to the present invention, the upper squeezing roller provided on the downstream side of the upper water-absorbing roller rotates and presses the upper water-absorbing roller to squeeze the cleaning liquid absorbed by the upper water-absorbing roller, and the squeezed cleaning water. However, since the water is smoothly drained from the lower part of the upper water absorption roller to the drain receiver, the drainage efficiency of the medal cleaning device is significantly improved. Further, the lower squeezing roller provided on the upstream side of the lower water absorbing roller rotates and presses the upper water absorbing roller to squeeze the cleaning liquid absorbed by the upper water absorbing roller, and the squeezed cleaning water is Since the water is smoothly drained from the lower part of the lower water absorption roller, the drainage efficiency of the medal cleaning device is remarkably improved.

  It is preferable that the upper squeezing roller and the lower squeezing roller are provided with a drain hole through which at least one surface allows cleaning water staying on the surface to escape.

  According to this preferred aspect, the drainage holes provided on the surfaces of the upper squeeze roller and the lower squeeze roller allow the wash water staying on the surface of the squeeze roller to escape, so the squeezed wash water is drained from the drainage hole. As a result of smooth drainage to the receiver, the drainage efficiency of the medal cleaning device is significantly improved.

  Further, the upper squeezing roller and the upper water absorbing roller are synchronized in rotation so that no slip occurs in the mutual contact portion, and the lower squeezing roller and the lower water absorbing roller are in the mutual contact portion. It is preferred that their rotations are synchronized so that no slip occurs.

  According to this preferable aspect, since rotation of each roller is synchronized so that no slip occurs between the squeezing roller and the water absorbing roller both in the upper and lower directions, the wear of the surface of each roller is small, and a highly durable medal It can be a cleaning device.

  Further, a medal cleaning device according to the present invention includes a drying unit in which the upper squeezing roller, the upper water absorbing roller, the lower squeezing roller, and the lower water absorbing roller are integrally incorporated. It is preferable to be provided so as to be detachable from the cleaning device main body.

  According to this preferable aspect, since the drying unit in which the upper and lower squeezing rollers and the water absorption roller are integrated is provided to be removable from the medal cleaning device main body, maintenance in the drying process of the medal cleaning device, It becomes possible to exchange easily.

  The cleaning means includes a cleaning brush that brushes medals, and an alignment brush that is provided on the upstream side of the cleaning brush and that removes extra medals at the tip of the brush while rotating. It is preferable to eliminate excess medals exceeding one sheet by disposing them above the transfer means so as to provide a gap between the transfer means so that the sheets can be passed one by one.

  According to this preferred embodiment, the aligning brush eliminates excess medals exceeding one sheet at the tip of the brush while rotating, and the cleaning brush removes medals that have passed through the gap between the aligning brush and the transfer means. Since the brushing is performed one by one, all the medals supplied to the medal cleaning device can be thoroughly cleaned.

  As described above, according to the present invention, since the squeezed wash water is smoothly drained, the drainage efficiency of the medal washing apparatus can be remarkably improved.

  Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a perspective view showing an appearance of a medal cleaning device 10 according to an embodiment of the present invention, and FIG. 2 is a side view showing an internal configuration of the medal cleaning device 10.

  Referring to FIG. 2, the medal cleaning device 10 according to the illustrated embodiment of the present invention is transferred to the main body 2 by the medal transfer means 3 for transferring the medal 1 and the medal transfer means 3. The cleaning means 4 for cleaning the medal 1 with the cleaning liquid and the cleaning liquid removing means 5 for removing the cleaning liquid attached to the medal 1 in the cleaning means 4 are provided.

  The medal 1 is a circular coin-shaped metal member used as a game medium in place of money in various games. In the present embodiment, the medal used for a slot machine is a target.

  The main body 2 is a box that is assembled into a generally rectangular shape using stainless steel, a synthetic resin-coated steel plate, or the like. The main body 2 is configured to receive the medal 1 so as to slide on the inclined plate 2a provided on the upper portion and supply it to the medal transfer means 3 provided below the lower end of the inclined plate 2a.

  The medal transfer means 3 has an endless belt 3a and two rotating rollers 3b and 3c around which the endless belt 3a is stretched.

  Here, one rotating roller 3b is driven by a motor 6a (FIG. 7) of a driving mechanism 6 described later, and the other rotating roller 3c is configured to follow the rotating roller 3b via an endless belt 3a. Yes. Further, since the rotating roller 3b is disposed at a position higher than the rotating roller 3c, the endless belt 3a is inclined. The roller rotation direction is set so that the medal 1 on the endless belt 3a is sent from the rotating roller 3c side to the rotating roller 3b side. Further, on the rotating roller 3c side of the endless belt 3a, a dropout prevention plate 2b is provided for restraining the medal 1 dropped from the inclined plate 2a so as not to drop out of the endless belt 3a.

  The cleaning means 4 is for cleaning the medal 1 on the medal transfer means 3 and is provided at a position on the upper side of the endless belt 3a and closer to the rotating roller 3b, and for cleaning the medal 1 while rotating. A brush 4a and an alignment brush 4b provided on the upstream side of the cleaning brush 4a and for removing excess medals 1 at the tip of the brush while rotating are provided.

  Here, the cleaning brush 4a and the alignment brush 4b rotate counterclockwise in FIG. 2, and the portion of the cleaning brush 4a and the alignment brush 4b on the endless belt 3a side is the moving direction (medal conveyance) of the endless belt 3a. It moves in the opposite direction to (direction).

  Further, the alignment brush 4b is arranged above the transfer means 3 so as to provide a gap between the transfer means 3 so that the medals 1 can be passed one by one. 1 is excluded.

  The upper sides of the cleaning brush 4a and the alignment brush 4b are covered with partition plates 2c and 2d, and a water spray pipe 4c for injecting water as a cleaning liquid is provided on the inner side. Then, the water from the sprinkling pipe 4c is sprinkled on the cleaning brush 4a and the alignment brush 4b, thereby being supplied to the medals 1 that pass under the alignment brush 4b one by one. It is comprised so that the dirt adhering to 1 may be scraped off.

  Next, the cleaning liquid removing means 5 removes the cleaning liquid attached to the medal 1 in the cleaning means 4, and the upper lower pair that absorbs the cleaning liquid attached to the upper lower side of the medal 1 in the cleaning means 4, respectively. The upper water absorbing roller 5a and the lower water absorbing roller 5b, and the upper lower pair of water absorbing rollers 5a and 5b, respectively, and the cleaning liquid absorbed by the water absorbing roller while rotating and pressing the water absorbing roller are provided. A pair of upper and lower squeezing rollers, that is, an upper squeezing roller 5c and a lower squeezing roller 5d are provided.

  The upper squeezing roller 5c is provided on the downstream side of the upper water-absorbing roller 5a, and a drain receiver 5f disposed below the upper squeezing roller 5c receives the wash water squeezed from the upper water-absorbing roller 5a. It is configured as follows.

  Further, the lower squeezing roller 5d is provided on the upstream side of the lower water absorbing roller 5b, and is configured such that the cleaning water squeezed from the lower water absorbing roller 5b is drained downward.

  Although not shown in detail, the upper and lower pair of water-absorbing rollers 5a and 5b are composed of a shaft portion made of metal and a cylindrical portion made of, for example, a sponge-like resin provided on the outside thereof. The pair of squeezing rollers 5c and 5d are made of a metal cylindrical portion.

  Here, FIG. 3 is a perspective view showing the configuration of the drying unit 5k of the cleaning liquid removing means 5, and FIG. 4 is a front view showing the configuration of the drying unit 5k. FIG. 5 is a rear view showing the configuration of the drying unit 5k, and FIG. 6 is a side view showing the configuration of the drying unit 5k.

  3 to 6, the squeezing rollers 5c and 5d and the water absorbing rollers 5a and 5b are integrated as a drying unit 5k, and the integrated drying unit 5k is a medal washing device. 10 is provided so as to be slidable with respect to the support frame 2e and the support frame 2f (FIG. 2) having a U-shaped cross section provided on the main body 2, and is configured to be detachable from the main body 2.

  In the drying unit 5k, the upper squeezing roller 5c and the upper water absorbing roller 5a are synchronized with each other so that slippage does not occur in the mutual contact portion by contacting each other. Further, the lower squeezing roller 5d and the lower water absorbing roller 5b are also in contact with each other, so that their rotations are synchronized so that slippage does not occur at the mutual contact portion.

  In the present embodiment, the upper squeezing roller 5c and the lower squeezing roller 5d are provided with drain holes 5e on their respective surfaces, and the surface of the upper squeezing roller 5c and the surface of the lower squeezing roller 5d The washing water staying in the tank can be discharged downward.

  The water squeezed from the water absorption rollers 5a and 5b by the squeezing rollers 5c and 5d and the water from which the dirt of the medal 1 is washed away by the cleaning brush 4a and the alignment brush 4b are provided in the entire lower area of the main body 2. A cleaning unit 5j filled with a filter (not shown) is disposed below the drain 5h of the cleaning water recovery unit 5g. And although not shown in figure, in order to circulate the water filtered by this purification | cleaning part 5j to the said water spray pipe 4c, the collection | recovery piping, the washing | cleaning liquid tank, the pump, and the supply piping are provided in the medal washing | cleaning apparatus 10. Yes.

  Here, with reference to FIG. 7, the drive mechanism 6 that drives the rotating roller 3b, the water absorbing rollers 5a and 5b, and the squeezing rollers 5c and 5d will be described.

  FIG. 7 is a side view of the internal configuration of the medal cleaning device 10 according to the embodiment of the present invention as viewed from the drive side, and the medal 1 is transferred from left to right in FIG.

  The drive mechanism 6 includes a drive motor 6a and belts 6b and 6c. A drive roller 6d provided on the drive motor 6a rotates clockwise in FIG. The rotating roller 3b and the lower water absorbing roller 5b are configured to rotate clockwise.

  Then, when the lower water absorption roller 5b rotates clockwise, the upper water absorption roller 5a rotates counterclockwise, the upper diaphragm roller 5c rotates clockwise, and the lower diaphragm roller 5d rotates counterclockwise.

  Further, when the rotating roller 3b rotates clockwise, the cleaning brush 4a and the alignment brush 4b rotate clockwise via the belt 6c. The other rotating roller 3c rotates clockwise via the endless belt 3a.

  Next, with reference to FIG. 2, an operation of the medal cleaning device 10 according to the embodiment of the present invention will be described.

  With reference to FIG. 2, in the medal washing apparatus 10 according to the embodiment of the present invention, as shown in the figure, the medal 1 is given to the medal transfer means 3 so as to slide on the inclined plate 2a of the main body 2, In the process of being conveyed on the endless belt 3a, the sheets are separated one by one by the alignment brush 4 and supplied to the cleaning brush 4a.

  And the dirt adhering to medal 1 is scraped off by this washing brush 4a and the water (cleaning liquid) from sprinkling pipe 4c, and dirt is washed.

  The cleaned medal 1 is discharged from the upper end of the endless belt 3a, and is then inserted between the water absorption rollers 5a and 5b via the guide member 2g, where the cleaning water is absorbed and removed, and the water is removed. The medal 1 is collected in a medal tank (not shown) provided below through a shooter 2 h provided in the main body 2.

  On the other hand, the water absorbed by the water absorbing rollers 5a and 5b is drained below the water absorbing rollers 5a and 5b by being squeezed by the squeezing rollers 5c and 5d.

  Here, the water from which the dirt of the medal 1 has been washed away by the cleaning brush 4a and the alignment brush 4b, and the water squeezed by the squeezing roller 5d from the water absorption roller 5b are below the endless belt 3a and on the inner wall of the main body 2. It is received by the washing water recovery unit 5g provided over the entire area. Further, the cleaning water squeezed out from the upper water absorption roller 5a is once received by a drainage receiver 5f disposed below the upper squeezing roller 5c, and flows into the cleaning water recovery part 5g through a path not shown. Has been.

  Then, the waste water is filtered from the washing water recovery unit 5g by a filtration filter (not shown) of the purification unit 5j disposed below, and the water filtered by the purification unit 5j is further provided in the medal washing device 10. It circulates through the unillustrated recovery pipe, the cleaning liquid tank, the pump, and the supply pipe, and is supplied again to the watering pipe 4c.

  As described above, according to the medal cleaning device 10 according to the embodiment of the present invention, the upper squeezing roller 5c provided on the downstream side of the upper water absorption roller 5a rotates and presses the upper water absorption roller 5a. The cleaning liquid absorbed by the upper water absorption roller 5a is squeezed out, and the squeezed cleaning water is smoothly drained from the lower part of the upper water absorption roller 5a to the drain receiver 5f, so that the drainage efficiency of the medal cleaning device 10 is remarkably improved. To do.

  Next, the lower squeezing roller 5d provided on the upstream side of the lower water absorbing roller 5b rotates and presses the upper water absorbing roller 5a while squeezing the cleaning liquid absorbed by the upper water absorbing roller 5a. As a result, the drainage efficiency of the medal cleaning device 10 is remarkably improved.

  Further, the drainage holes 5e provided on the surfaces of the upper squeezing roller 5c and the lower squeezing roller 5d release the cleaning water staying on the surfaces of the squeezing rollers 5c and 5d, so that the squeezed cleaning water is discharged into the drainage hole 5e. As a result, the drainage efficiency of the medal cleaning device 10 is significantly improved.

  Further, since the rotation of each roller is synchronized so that no slip occurs between the squeezing rollers 5c and 5d and the water absorbing rollers 5a and 5b, the medal washing device has low surface wear and high durability. 10 can be used.

  Further, since the drying unit 5k in which the upper and lower squeezing rollers 5c and 5d and the water absorbing rollers 5a and 5b are integrated is provided so as to be detachable from the main body of the medal cleaning device 10, maintenance in the drying process of the medal cleaning device 10 is performed. In addition, the device can be easily replaced.

  Further, while the alignment brush 4b rotates, the extra medal 1 exceeding one sheet is eliminated at the tip of the brush, and the cleaning brush 4a removes the medal 1 that has passed through the gap between the alignment brush 4b and the transfer means. Since the brushing is performed one by one, all the medals 1 supplied to the medal cleaning device 10 can be thoroughly cleaned.

  The above-described embodiment is merely a preferred specific example of the present invention, and the present invention is not limited to the above-described embodiment.

  For example, the medal 1 is not limited to the medal used in the slot machine. Moreover, it is not limited to a circular coin-shaped metal member. As long as it can be used as a game medium instead of money in various games, medals of various materials and shapes can be adopted.

  The main body 2 is not limited to a box assembled in a rectangular shape with stainless steel, synthetic resin-coated steel plate, or the like, and various design changes such as material and shape are possible.

  In addition, the inclined plate 2a, the fall prevention plate 2b, the partition plates 2c and 2d, the support frames 2e and 2f are not necessarily limited to the illustrated shapes. Various design changes are possible.

  Further, the driving mechanism 6 is not necessarily limited to the shape shown in the drawing, and various driving methods such as individually driving the rotating roller 3b, the lower water absorbing roller 5b, and the like can be adopted.

  In addition, it goes without saying that various design changes are possible within the scope of the claims of the present invention.

It is a perspective view which shows the external appearance of the medal cleaning apparatus which concerns on embodiment of this invention. It is a side view which shows the structure inside a medal cleaning apparatus. It is a perspective view which shows the structure of the drying unit of a washing | cleaning liquid removal means. It is a front view which shows the structure of a drying unit. It is a rear view which shows the structure of a drying unit. It is a side view which shows the structure of a drying unit. It is the side view which looked at the internal structure of the medal cleaning apparatus which concerns on embodiment of this invention from the drive side.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Medal 3 Medal transfer means 4 Cleaning means 4a Cleaning brush 4b Alignment brush 5 Cleaning liquid removal means 5a, 5b Water absorption roller 5c, 5d Squeezing roller 5e Drain hole 5f Drain receptacle 5k Drying unit 10 Medal cleaning device

Claims (5)

And the medal transporting means for transporting the medal, and cleaning means for cleaning the medals to be transferred by the medal transporting means with the washing solution, each of the cleaning liquid adhering to the upper lower side of the medal in the washing unit, while the medal An upper lower side provided on each of the upper lower pair of water absorbing rollers that bite and absorb, and the upper lower pair of water absorbing rollers that rotate and press the water absorbing roller while squeezing the cleaning liquid absorbed by the water absorbing roller. A medal cleaning device comprising a pair of squeezing rollers,
The shaft center of the upper squeezing roller is provided on the downstream side in the discharge direction of medals caught between the upper water-absorbing roller and the lower water-absorbing roller with respect to the axis of the upper water-absorbing roller , and on the lower side . On the other hand, the shaft center of the lower squeezing roller is provided upstream of the axis of the lower water absorption roller in the discharging direction of medals caught between the lower water absorption roller and the upper water absorption roller,
A medal characterized in that a drain receiver for receiving the washing water squeezed from the upper water-absorbing roller is disposed below the upper squeezing roller and above the discharge area of the medals discharged from both water-absorbing rollers. Cleaning device.   2. The medal cleaning device according to claim 1, wherein the upper squeezing roller and the lower squeezing roller are provided with a drain hole through which at least one of the cleaning water staying on the surface escapes.   The upper squeezing roller and the upper water absorbing roller are synchronized in rotation so that no slip occurs in the mutual contact portion.
  3. The medal washing apparatus according to claim 1, wherein the lower squeezing roller and the lower water absorbing roller are synchronized in rotation so as not to slip at a mutual contact portion.   A drying unit in which the upper squeezing roller, the upper water absorbing roller, the lower squeezing roller, and the lower water absorbing roller are integrated;
  4. The medal cleaning device according to claim 1, wherein the drying unit is provided so as to be detachable from the medal cleaning device main body.   The cleaning means includes a cleaning brush for brushing medals,
  Provided on the upstream side of this cleaning brush, with an alignment brush that removes extra medals at the tip of the brush while rotating,
  The alignment brush is disposed above the transfer means so as to provide a gap between the transfer means so that medals can be passed one by one, thereby eliminating excess medals exceeding one sheet. The medal washing apparatus according to any one of claims 1 to 4, characterized in that: