JP2889534B2 - Coin cleaning equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coin washing apparatus used in a slot machine installed in a pachinko parlor or the like.

[0002]

2. Description of the Related Art Coins used in slot machines installed in pachinko parlors and the like are regularly cleaned because they become dirty with hand marks or the like during long-term use.
Coin cleaning is performed by a coin cleaning device arranged inside a so-called island formed by an array of slot machines in a pachinko parlor or the like.

Conventionally used coin cleaning devices are roughly classified into two types, a hot water cleaning system and an abrasive polishing system, and each of them is properly used depending on installation conditions and the like.

[0004] A hot-water type coin cleaning device is for immersing coins in hot water for brushing cleaning. Specifically, the coins that have been permuted and conveyed by a parts feeder or the like are placed on a dedicated cleaning disk, and the cleaning disks are rotated in hot water, and the surface is brushed for cleaning. When the washing is completed, the coins are pulled out of the hot water, dried with hot air, etc., and then returned to the slot machine or the coin vending machine.

[0005] On the other hand, a coin cleaning device of the abrasive grain type removes dirt on the coin surface with synthetic resin abrasive grains by mixing and stirring the coin with pellet-shaped synthetic resin abrasive grains. Specifically, a mixture of coins and abrasives made of synthetic resin is transported while being stirred by a screw conveyor or the like, and finally coins and abrasives are sorted by a sieve, and the coins are again slot machine or coin vending machine. The process of reducing to is adopted.

[0006]

The hot water type coin washing apparatus conventionally used not only consumes a large amount of hot water but also requires drainage treatment. In addition, since the hot water becomes dirty as the washing operation is repeated, periodic replacement is required, and the replacement operation requires much labor and time. Also,
Since a separate facility for drying coins after washing with hot water is required,
The device becomes complicated and large.

On the other hand, a conventional abrasive-type coin cleaning device is:
As the cleaning work is repeated, the dirt on the coin moves to the synthetic resin abrasive grains, so the abrasive grains themselves need to be washed,
This cleaning operation is very troublesome. Further, it is necessary to periodically replace the synthetic resin abrasive grains.

[0008] Further, since the cleaning speed of all the conventional coin cleaning apparatuses is low, the cleaning ability tends to be insufficient for the amount of coins circulating in the pachinko parlor.

[0009] However, since the inside of the island formed in the pachinko parlor is small and there is no sufficient installation space, there is a limit to improving the cleaning ability by increasing the size of the coin cleaning device.

It is an object of the present invention to provide a coin cleaning apparatus which is small in size, has excellent cleaning ability, and is easy to handle and maintain.

[0011]

In order to solve the above-mentioned problems, a coin washing apparatus according to the present invention rotates at least one of a pair of abrasives disposed opposite to each other and allows the coin to pass between the abrasives. The coin is washed. When at least one of a pair of abrasives disposed opposite to each other is rotated by a motor or the like, and a coin is passed between the abrasives, the coin is polished by the rotating abrasives while moving toward the outer peripheral direction of the abrasives. Move.

Therefore, not only the surface of the coin in contact with the rotating abrasive material but also the surface and side surface of the coin in contact with the other abrasive material are polished, so that the dirt on the entire coin is removed. Here, for the other abrasive,
It is possible to employ a mechanism for rotating the rotating abrasive with a speed difference in the same direction as the rotating abrasive, a mechanism for rotating the rotating abrasive in the opposite direction to the rotating abrasive, or a mechanism for keeping the rotating abrasive stationary.

[0013] Further, the coin washing apparatus of the present invention comprises: an upper disc having a blade plate on an upper surface and an upper abrasive material on a lower surface rotatably supported by a cylindrical shaft body through which the coin can pass;
A lower disk fixed to the rotary drive shaft disposed below the cylindrical shaft body and having a lower abrasive on the upper surface, and disposed in a casing such that the upper abrasive and the lower abrasive are in contact with each other. I do.

The upper abrasive material and the lower abrasive material are opposed to each other with their tip portions in contact with each other. The upper disk is rotatably supported by a cylindrical shaft, and the lower disk is fixed to a rotary drive shaft.

Therefore, when the lower disk is rotated by rotating the rotary drive shaft with a motor or the like, the upper disk also rotates accordingly. At this time, since the upper disk has the blade plate on the upper surface, the rotation is hindered by the resistance of the air received by the blade plate, and the blade rotates with a delay after the lower disk.

Here, when a coin is inserted into the cylindrical shaft supporting the upper disk, the coin falls to the center of the upper surface of the rotating lower disk, but from the center to the outer periphery by centrifugal force. It is swung out, passes between the upper abrasive and the lower abrasive, and is discharged from the outer peripheral portion to the outside. At this time, the coin is polished by moving both sides and side surfaces of the coin while contacting the tip portions of the abrasives above and below, thereby removing stains such as hand marks.

As described above, since the upper disk is constantly rotating with a delay from the lower disk, the coin passes between the upper and lower abrasives having a difference in rotation speed. Therefore, the trajectory through which the coin passes is longer than the trajectory when passing between the upper and lower abrasives rotating at the same speed, and the polishing effect is greatly improved.

As a mechanism for generating a rotational speed difference between the upper disk and the lower disk, there are other mechanisms such as a method of rotating the lower disk while applying an electromagnetic brake or a mechanical brake to the upper disk. However, in the case of the electromagnetic brake, the structure is complicated, and in the case of the mechanical brake, there is a problem that the brake portion is worn. However, according to the mechanism of the present invention, since the rotation speed difference is generated by the resistance of the air received by the blades on the upper disk upper surface, the structure is simple, there is no wear portion, and the durability is excellent. There are benefits. Further, as will be described later, it is also a great advantage that dust can be collected by utilizing an air flow generated in the casing by the rotation of the blade plate on the upper disk upper surface.

As described above, the coin, which has been washed by passing between the upper abrasive and the lower abrasive, jumps out of the outer peripheral portion of the abrasive, and then goes out of the apparatus through a coin outlet or the like provided in the casing. Is discharged.

Here, the coin washing apparatus of the present invention forms a coin descending surface by inclining a lower inner surface of the casing in a funnel shape, and has a coin discharging disk which rotates together with a rotary drive shaft below the coin descending surface. And a coin discharge opening is provided in a casing at an outer peripheral portion of the coin discharge disk.

Since the lower inner surface of the casing is inclined in a funnel shape to form a coin descending surface, the washed coin that has passed between the upper abrasive material and the lower abrasive material descends along the coin descending surface. To go. A coin ejection disk that rotates together with the rotation drive shaft is provided below the coin lowering surface, so that the washed coin falls on the coin ejection disk, and immediately moves in the outer peripheral direction by the rotation, and the coin is ejected. The coin is ejected outside from the coin ejection opening provided in the casing on the outer periphery of the disk. Since the washed coins are ejected by the rotating coin ejection disc, the coin ejection capacity is greatly improved,
It can contribute to improvement of the cleaning speed.

Further, in the coin cleaning device of the present invention, the exhaust port opened on the side of the casing and the intake port opened on the upper side of the casing are connected by a dust collection duct, and a dust outlet is further opened on the side of the casing. It is characterized by.

Due to the rotation of the blades formed on the upper surface of the upper disk, a flow of air is generated in the casing from the center to the outer periphery. For this reason, if the exhaust port opened on the side of the casing and the intake port opened on the upper surface of the casing are connected by a dust collection duct, the air inside the casing exits from the exhaust port, passes through the dust collection duct, and Move through the mouth into the casing. Therefore, if a dust outlet is provided on the side surface of the casing, the abrasive dust generated in the casing can be discharged out of the dust outlet together with the air by utilizing the air flow generated by the rotation of the blades. .

Further, the coin cleaning apparatus of the present invention is characterized in that the upper abrasive and the lower abrasive are formed in a donut shape, and a coin guiding inclined surface is formed in at least one inner peripheral portion of the abrasive. . The coin thrown into the cylindrical shaft body and dropped on the lower disk moves in the outer peripheral direction by centrifugal force and enters the space between the upper and lower abrasives. Therefore, by forming the upper abrasive and the lower abrasive in a donut shape and providing a coin guiding inclined surface on at least one inner peripheral portion of the abrasive, the inserted coin slides on the coin guiding inclined surface. Since the coin moves while the coin is in a horizontal state, the coin is smoothly guided between the upper and lower abrasives.

On the other hand, the coin washing apparatus of the present invention is characterized in that at least one of the lower disk and the coin discharging disk is provided with a centrifugal acceleration unit for applying a centrifugal force to the coin. If the lower disk is provided with a centrifugal acceleration unit, the coin thrown into the cylindrical shaft and dropped on the lower disk contacts the centrifugal acceleration unit and is applied with centrifugal force, so that it moves smoothly in the outer peripheral direction. To enter the space between the upper and lower brushes. Also,
If the centrifugal acceleration unit is provided on the coin ejection disk, the coin that has fallen on the coin ejection disk contacts the centrifugal acceleration unit and is applied with centrifugal force. You. Here, the material of the centrifugal acceleration unit is not limited, but rubber or the like having a large friction coefficient with a coin can be suitably used.

Further, the coin washing apparatus of the present invention is characterized in that an impact buffer is provided on the inner surface of the casing. By providing the shock-absorbing material on the inner surface of the casing, it is possible to reduce the impact when the coin comes into contact with the inner surface of the casing, so that damage to the coin and generation of noise can be prevented.

Further, the coin cleaning apparatus of the present invention is characterized in that the abrasive is a polishing brush. By using the polishing brush as an abrasive, the brush tip is cleaned while being in contact with both sides of the coin having fine irregularities, so that it can be cleaned to every corner. In addition, as the abrasive material, besides an abrasive brush, a cloth with a long tip, buff, skin, artificial grass, or the like, or a material in which a sponge or the like is wrapped with a cloth to give a cushioning property can be used. .

[0028]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a plan view showing a coin cleaning apparatus according to an embodiment, FIG. 2 is a front view including a cross-sectional view taken along line AA of FIG. 1, FIG. 3 is a cross-sectional view taken along line BB of FIG. 2, and FIG. 2 is a sectional view taken along the line CC of FIG. 2, and FIG. 5 is a sectional view taken along the line DD of FIG.

In FIG. 1, reference numeral 10 denotes a coin washing device,
1 is a cleaning unit main body, 12 is a motor, 13 is a motor base,
14 is a tension bolt, 15 is a power transmission belt, 17 is a dust collection duct hose, 18 is an exhaust duct hose, 19 is a brush gap adjusting handle, 20 is an assembly bracket, and 21 is a coin slot.

In FIG. 2, reference numeral 21 denotes a coin slot, 22 denotes a cylindrical shaft, 23 denotes a blade plate, 24 denotes an upper polishing brush, 25 denotes an upper disk, 26 denotes a rotary drive shaft, and 27 denotes a lower polishing brush. , 28 is a lower disk, 29 is a casing, 30
Is a coin lowering surface, 31 is a coin discharge disk, 32 is a coin discharge opening, 33 is a centrifugal acceleration unit, 34 is an impact buffer, 35
Is a coin discharge pipe.

In the coin washing apparatus 10 of the present embodiment, an upper disk 25 is rotatably supported on a cylindrical shaft 22 through which a coin C can pass, and a wing plate 23 is formed on the upper surface thereof.
The lower surface is provided with an upper polishing brush 24 with the bristle points down. A lower disk 28 is supported on a rotary drive shaft 26 disposed below the cylindrical shaft 22, and a lower polishing brush 27 having a bristle tip facing upward is provided on the upper surface.

As shown in FIG. 2, the upper polishing brush 24 and the lower polishing brush 27 are opposed to each other with their tips being in contact with each other. The upper disk 25 is rotatably supported by the cylindrical shaft body 22 so that it can rotate freely. The lower disk 28 is fixed to a rotation drive shaft 26, and the rotation drive shaft 26 is a transmission belt. Driven by a motor 12 via a motor 15.

When the power switch of the motor 12 is turned on to rotate the lower disk 28, the upper disk 25 rotates accordingly. At this time, the wing plate 23 is placed on the upper surface of the upper disk 25.
Therefore, the rotation is hindered by the resistance of the air received by the blade plate 23, and the blade disk 23 rotates with a delay from the lower disk 28. Therefore, from the coin slot 21 to the cylindrical shaft 22
When the coin C is inserted into the inside, the coin C falls to the centrifugal acceleration unit 33 at the center of the upper surface of the rotating lower disc 28, where the centrifugal force is applied and the coin C is ejected to the outer periphery.

Here, the upper polishing brush 24 and the lower polishing brush 27 are formed in a donut shape, and the coin guide inclined surfaces 36 and 37 are formed on the inner peripheral portions thereof. Centrifugal coin C
Is moved horizontally while sliding on the coin guiding inclined surfaces 36 and 37, and is smoothly guided between the upper and lower brushes. Although the material of the centrifugal acceleration unit is not limited, the use of rubber having a large coefficient of friction with the coin C made it possible to apply a strong centrifugal force with little slippage.

Thereafter, the coin C is put on the upper polishing brush 24.
And the lower polishing brush 27, and the coin C is polished by moving while the both sides and side surfaces of the coin C are in contact with the brush tips of the upper and lower brushes, thereby removing dirt such as hand marks. Is done.

At this time, since the upper disk 25 is always rotating with a delay from the lower disk 28 due to the action of the blade plate 23, the coin C passes between the upper and lower polishing brushes having a difference in rotation speed. Will go on. Therefore, coin C
Is longer than the trajectory when passing between the upper and lower polishing brushes rotating at the same speed, and the polishing effect is improved.

As described above, the coin cleaning device 10 employs a mechanism for generating a rotational speed difference between the upper and lower polishing brushes by the resistance of air received by the blade plate 23 on the upper surface of the upper disk 25. Unlike a system in which a lower rotational speed is generated by rotating the lower disk 28 while applying an electromagnetic brake or a mechanical brake to 25, the structure is simple, there is no wear portion, and the durability is excellent. . Further, as will be described later, dust can be collected by utilizing the airflow generated in the casing 29 by the rotation of the blade plate 23 on the upper surface of the upper disk 25.

Upper polishing brush 24 and lower polishing brush 27
The coin C, which has been washed by passing through the space, jumps out of the outer peripheral portion, contacts the inner surface of the casing 29, and falls downward. At this time, the shock absorbing material 34 is attached to the inner surface of the casing 29, and the coin C that has jumped out from between the upper polishing brush 24 and the lower polishing brush 27 is received by the shock absorbing material 34. And noise can be prevented.

Further, since the coin lowering surface 30 inclined in a funnel shape is formed on the lower inner surface of the casing 29, the coin C that has fallen in contact with the shock absorbing material 34 descends along the coin lowering surface 30. To go. Since the coin discharge disk 31 that rotates together with the rotary drive shaft 26 is provided below the coin lowering surface 30, the washed coin C falls onto the coin discharge disk 31 and is immediately rotated in the outer peripheral direction by the rotation. It moves and is discharged out of the apparatus through a coin discharge pipe 35 from a coin discharge port 32 opened in the casing 29 of the outer peripheral portion. As described above, since the washed coin C is discharged by the rotating coin discharging disk 31, the coin discharging ability is greatly improved, which can contribute to an increase in the cleaning ability. Note that a rubber centrifugal acceleration unit 41 is provided on the upper surface of the coin discharging disc 31.
Is provided, a strong centrifugal force can be applied to the coin C by the same operation as the centrifugal acceleration unit 33.

In the coin washing apparatus 10, an exhaust port 38 is provided on the side surface of the casing 29 so that the casing 2
9 An intake port 39 is opened on the upper surface, and an exhaust port 38 and an intake port 39 are provided.
Are connected by a dust collection duct 17, and a dust outlet 40 is opened on the side surface of the casing 29, and an exhaust duct hose 18 is connected.

When the upper disk 25 rotates, the rotation of the blade plate 23 formed on the upper surface generates a flow of air in the casing 29 from the center to the outer periphery. For this reason, if the exhaust port 38 and the intake port 39 are connected by the dust collection duct 17, the air inside the casing 29 exits from the exhaust port 38, passes through the dust collection duct 17, and flows from the intake port 39 into the casing 29. Move to enter. Therefore, the abrasive dust generated in the casing 29 can be discharged out of the dust outlet 40 together with the air using the airflow generated by the rotation of the blade plate 23. Since the abrasive dust discharged from the dust outlet 40 can be collected at a predetermined place through the exhaust duct hose 18, there is no possibility that the abrasive dust is scattered in the air.

The upper polishing brush 24 of the coin cleaning device 10
The material of the lower polishing brush 27 is not particularly limited. However, when a nylon brush containing silicon oxide was used, the function of removing the dirt and the like of the coin C was excellent, and a good cleaning effect was obtained.

When the coin cleaning device 10 is used for a long time,
The tips of the upper polishing brush 24 and the lower polishing brush 27 are worn, and a gap is formed between the upper and lower brushes. In such a case, the brush clearance adjusting handle 1 above the cylindrical shaft body 22
If the upper disk 25 can be moved up and down together with the cylindrical shaft body 22 by pulling it up horizontally, if the upper disk 25 is lowered according to the amount of wear of the brush, the bristles of the upper and lower brushes come into contact again. Can be done. Thereafter, when the brush gap adjusting handle 19 is returned to the vertical position, the upper disk 25 is fixed at that position, so that the cleaning operation can be immediately resumed.

As described above, the coin cleaning device 10 performs the coin cleaning by passing the coin C between the upper polishing brush 24 and the lower polishing brush 27 that rotate while generating a rotation difference. As in the case of the apparatus, auxiliary materials such as hot water and abrasive grains and drying equipment are not required. For this reason, not only can the apparatus be simplified and downsized, but also the handling is simplified. For this reason, it does not occupy a large space at the time of installation, and is an optimal coin washing apparatus for the inside of an island of a pachinko parlor having only a limited space.

Unlike the conventional coin cleaning device, the cleaning operation by the coin cleaning device 10 is a continuous process, so that the cleaning speed is extremely high, and the brush cleaning is very powerful. Therefore, even in a large-scale pachinko parlor where a large amount of coins are distributed, there is no shortage of cleaning ability. Further, since maintenance of dirty hot water and cleaning of abrasive grains are not required, maintenance is easy.

In the coin cleaning apparatus 10, since the upper polishing brush 24 and the lower polishing brush 27 are used as abrasives, it is possible to completely clean every corner of the coin C having fine irregularities. In addition, besides the polishing brush, it is possible to use a cloth with a long tip, buff, skin, artificial grass, etc., or a material in which a sponge or the like is wrapped with a cloth to give a cushioning property. it can.

[0047]

According to the present invention, the following effects can be obtained.

(1) Since coins are washed by rotating at least one of a pair of abrasives disposed opposite to each other and passing the coins between the abrasives, the coins can be washed continuously. The cleaning speed is also fast.

(2) An upper disc having a vane plate on the upper surface and a polishing brush on the lower surface, rotatably supported by a cylindrical shaft body through which the coin can pass, and a lower part of the cylindrical shaft body. A lower disk fixed to the arranged rotary drive shaft and having a lower abrasive on the upper surface is disposed in the casing so that the upper abrasive and the lower abrasive are in contact with each other, and a coin passes between the rotating upper and lower abrasives. By performing the cleaning, high-speed cleaning can be automatically performed, and the cleaning power is excellent.

(2) Since hot water and abrasive grains are not used, and no drying equipment is required, the apparatus can be simplified and downsized, and handling and maintenance become easy. For this reason, it is possible to provide an optimum coin cleaning device inside the island of a pachinko parlor that does not occupy a large space at the time of installation and has only a limited space.

(3) During the cleaning operation, coin cleaning is performed between the lower abrasive which is driven to rotate and the upper abrasive which rotates with a delay from the lower abrasive, so that excellent cleaning power is obtained. Can be

(4) The lower abrasive is rotatably supported by an upper disk having a blade plate on the upper surface and an upper abrasive on the lower surface, and a lower disk rotationally driven and having a lower abrasive on the upper surface. Since it is a mechanism for generating a difference in rotation speed between the lower abrasive and the lower abrasive, the structure is extremely simple, and there is no wear portion, so that the durability is excellent. Further, dust can be collected by an air flow generated by rotation of the blades of the upper disk.

(5) The inner surface below the casing is inclined in a funnel shape to form a coin descending surface, and below the coin descending surface,
Provide a coin ejection disk that rotates with the rotation drive shaft,
By providing a coin discharge port in the casing on the outer peripheral portion of the coin discharge disk, the coin discharge capacity is greatly improved, which can contribute to an increase in the cleaning speed.

(6) The exhaust port opened on the side of the casing and the intake port opened on the top of the casing are connected by a dust collection duct, and the exhaust port is opened on the side of the casing. By utilizing the generated air flow, the abrasive dust generated in the casing can be discharged to the outside together with air from the dust outlet.

(7) The upper abrasive and the lower abrasive are formed in a donut shape, and a coin guiding inclined surface is formed on at least one of the inner peripheral portions of the abrasive, so that the inserted coins are kept horizontal. It can be guided smoothly between the upper and lower abrasives, and the cleaning speed is improved.

(8) By providing a centrifugal acceleration unit for applying a centrifugal force to the coin at the center of the lower disk, the centrifugal force is applied to the coin dropped on the lower disk to smoothly move the coin in the outer peripheral direction. Then, the cleaning material can be fed between the upper and lower abrasives, so that the cleaning speed can be improved.

(9) By providing the shock absorbing material on the inner surface of the casing, it is possible to reduce the impact when the coin comes into contact with the inner surface of the casing, so that damage to the coin and generation of noise can be prevented.

(10) By using a polishing brush as a polishing material, it is possible to completely clean every corner of a coin having fine irregularities.

[Brief description of the drawings]

FIG. 1 is a plan view showing a coin cleaning device according to an embodiment.

FIG. 2 is a front view including a sectional view taken along line AA of FIG. 1;

FIG. 3 is a sectional view taken along line BB of FIG. 2;

FIG. 4 is a sectional view taken along line CC of FIG. 2;

FIG. 5 is a sectional view taken along line DD of FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Coin washing | cleaning apparatus 11 Cleaning part main body 12 Motor 13 Motor base 14 Tension bolt 15 Transmission belt 17 Dust collection duct hose 18 Exhaust duct hose 19 Brush clearance adjustment handle 20 Assembly metal fittings 21 Coin slot C Coin 22 Tubular shaft 23 Blade Plate 24 Upper polishing brush 25 Upper disc 26 Rotating drive shaft 27 Lower polishing brush 28 Lower disc 29 Casing 30 Coin descending surface 31 Coin discharging disk 32 Coin discharge port 33, 41 Centrifugal acceleration part 34 Impact buffer 35 Coin discharge Pipes 36, 37 Inclined surface for coin guide 38 Exhaust port 39 Inlet port 40 Dust port

Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A63F 7/02 351 B24B 29/00

Claims (7)

(57) [Claims] 1. An upper disc having a vane plate on an upper surface and a top abrasive material on a lower surface rotatably supported by a cylindrical shaft body through which a coin can pass, and a coin below the cylindrical shaft body. A coin cleaning device comprising: a lower disk fixed to an arranged rotary drive shaft and having a lower abrasive on an upper surface; and a lower disk disposed in a casing such that the upper abrasive and the lower abrasive are in contact with each other. 2. A coin lowering surface is formed by inclining a lower inner surface of the casing in a funnel shape, and a coin discharging disk which rotates together with the rotary drive shaft is provided below the coin lowering surface, and the coin discharging circle is provided. 2. The coin washing apparatus according to claim 1, wherein a coin outlet is opened in an outer casing of the plate. 3. An exhaust port opened on the side surface of the casing and an intake port opened on the upper surface of the casing are connected by a dust collection duct, and a dust outlet is further opened on the side surface of the casing. Coin cleaning equipment. 4. The coin cleaning apparatus according to claim 1, wherein the upper abrasive and the lower abrasive are formed in a donut shape, and a coin guiding inclined surface is formed on an inner peripheral portion of the abrasive. 5. The coin washing apparatus according to claim 4, wherein at least one of the lower disk and the coin discharging disk is provided with a centrifugal acceleration unit for applying a centrifugal force to the coin. 6. The coin washing apparatus according to claim 1, wherein an impact buffer is provided on an inner surface of said casing. 7. The coin cleaning device according to claim 1, wherein the abrasive is a polishing brush.