JPH0517735Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a coin dispensing device used in money changers, vending machines, game machines, etc. This relates to a device that scoops up and dispenses one sheet at a time.

[Conventional technology]

A coin dispensing device that has a rotating disk arranged at an angle and scoops up a large number of stored coins one by one is called a ``hopper.''
It is built into currency exchange machines, vending machines, game machines, etc. A conventional coin dispensing device (hereinafter referred to as a hopper) has a disc-shaped protrusion in the center with a height that is almost the same as the thickness of the coin, and a plurality of claws on the periphery that are arranged at predetermined pitches. A flat rotary plate made of is used and is installed at an angle. Further, a scraper whose tip is in contact with the protrusion is disposed at or past the top of the rotary plate, and a chute having a rectangular passage slightly larger than the thickness of the coin behind the scraper. There is. When throwing out a coin, the rotary plate is rotated by a motor at a predetermined speed, and the coin leaning against the rotary plate is held by the protrusion and the claw and scooped up. The coins scooped up by the rotary plate are separated from the rotary plate by a scraper and thrown into the chute.

The smaller the inclination of the rotary plate is to make it more horizontal, the easier it is for coins to ride on it.However, since multiple coins are thrown out in a piled state, there is a risk of coins getting stuck at the entrance of the chute. This is especially noticeable when the rotating plate is rotated at high speed. On the other hand, by increasing the inclination of the rotary plate so that it approaches verticality, it is possible to eliminate the overlapping of coins, but on the other hand, it becomes difficult to scoop up the coins, and the so-called coins cannot be scooped up continuously. Problems arise such as "breathing" and coins being left behind without being scooped up by the rotating plate.

From this point of view, as disclosed in Japanese Patent Application Laid-Open No. 61-25292, it has been proposed to use a rotary plate having a dish-like configuration with the inner surface of the peripheral portion inclined inward. According to this, compared to the case where a flat rotating plate is used, the coin will be in a nearly vertical posture near the entrance of the chute, and the angle of the rotating plate will be more horizontal near the area where the coin is scooped up. It becomes possible to significantly improve coin payout efficiency.

[Problem that the invention attempts to solve]

However, when a dish-shaped rotary plate is used as described above, the shape of the rotary plate increases toward the outer periphery. For this reason, as the coin is separated from the rotary plate by the scraper and moved toward the entrance of the chute, the outer periphery of the rotary plate comes into contact with the tip of the coin, making it easy for the coin to fall toward you. , the coin may fall from the scraper before reaching the entrance of the chute.

The present invention was developed to solve these problems, and uses a rotating plate shaped like a plate with an inwardly inclined inner surface to ensure that the coins reach the entrance of the chute without falling from the top of the scraper. The purpose of the present invention is to provide a coin dispensing device that allows coins to be sent to

[Means for solving problems]

In order to achieve the above object, the present invention forms the rotary plate into a dish shape by forming the inner surface of the rotary plate into a slope that becomes lower toward the center, and furthermore, the inner surface along the outer periphery of the rotary plate is It is arranged to be inclined away from the inclined surface. and,
The coin moving on the scraper is prevented from falling due to being pushed by the outer peripheral edge of the rotary plate.

Embodiments of the present invention will be described below with reference to the drawings.

〔Example〕

1 and 2, an L-shaped mounting plate 2 is fixed to a substrate 1, and this mounting plate 2 is inclined at about 60 degrees with respect to the substrate 1. A cylindrical motor holder 3 is fixed to the back surface of the mounting plate 2, and a motor 4 is fixed to this. A rotating shaft 4a of this motor 4 passes through a hole 2a formed in the mounting plate 2, and a rotating plate 6 is fixed to the tip thereof. As shown in detail in FIG. 3, this rotary plate 6 has an inclined surface 60a that is inclined inward at an angle θ1 on the inner surface of its peripheral portion 60, and the rotary plate as a whole has a dish shape.
This angle θ1 is preferably 20 degrees, and since the entire body is inclined at 60 degrees, it is 40 degrees below the rotary plate 6 and 80 degrees above it. Therefore, at the position of the coin 7a, the slope is gentle, making it easier to scoop up the coin, and at the position of the coin 7c, the slope is steeper, making it easier to separate from the rotary plate 6, and also to scoop up the coin from the vertically arranged chute 8. It becomes easier to input.

Further, as shown in the figure, the inner surface in contact with the outer peripheral edge of the rotary plate 6 is a flat surface that matches the rotation surface of the rotary plate 6.
60b, with a plane parallel to the mounting plate 2. Note that this flat surface 60b does not necessarily have to be parallel to the mounting plate 2, and may be inclined in a direction in which it retreats from the inclined surface 60a, that is, as long as it does not protrude from the inclined surface 60a.

A plurality of pins 10 are provided on the inclined surface 60a of the rotary plate 6 at intervals somewhat wider than the diameter of the coin. The height of these pins 10 is set so that the two coins do not get caught.
It is the same thickness as the coin or less. In the center of the rotary plate 6, a first protrusion 61 is formed in the shape of a flange with a flat front surface and has a height approximately equal to the thickness of the coin in order to guide only one coin. There is. A second protrusion 62 having a diameter slightly smaller than the first protrusion 61 is formed on the first protrusion 61 . Furthermore, a conical stirring protrusion 63 is formed around the second protrusion 62 .

A cylinder 12 is attached to the mounting plate 2 so as to surround the rotating plate 6.
is fixed to. This cylinder 12 has a notch at the top, and a scraper 13 is provided in this notch 12a.
has entered. Further, a tapered surface 12b inclined by an angle θ1 is formed on the inner surface of the tube 12, and the edge of the coin can be received on this tapered surface 12b.

The coin storage part 15 includes a cylinder part 15a, a cover part 15b, and a bracket 15c.The cover part 15b enters into the cylinder 12, and the screw 1
At 6, a bracket portion 15c is freely attached to the end edge of the tube 12 via a coil spring. In the case of a money exchange machine, a large number of coins are stored in the cylinder part 15a in advance, and in the case of a vending machine, coins inserted from the coin slot are replenished into the cylinder part 15a.

The scraper 13 is attached to a bracket 17 fixed to the mounting plate 2, and has a sharp tip like a claw. This sharp tip is arranged so as to be in contact with the shoulder of the first protrusion 61 . Further, the scraper 13 has a flat top surface 13a, on which a coin can be placed. Note that a notch 13b is formed in the upper surface 13a for passing the pin 10 provided on the rotating plate 6. In this embodiment, the scraper 13
is arranged so that its tip is on the vertical line of the rotary plate 6, but it may be arranged in a position where the coin ends past this vertical line.

An inlet 8a of the chute 8 is located so as to be continuous with the upper surface 13a of the scraper 13. This chute 8 has a rectangular passage formed therein, and is made slightly larger than the thickness of the coin to prevent two coins from overlapping in the passage. Further, a wall 8b located on the back side of the chute 8 is extended beyond the entrance 8a to prevent the coins taken out by the scraper 13 from falling behind the rotary plate 6. Further, the tip of this wall 8b is bent backward and fixed to the mounting plate 2 with screws 20.

The counter plate 22 is rotatably supported by a shaft 23, and a roller 24 is attached to the tip thereof. When this counter plate 22 is pushed up by the edge of the coin, a pin 25 planted at the other end turns on a micro switch 26. Then, when the center of the coin passes through the center of the roller 24, the counter plate 22 is quickly returned by the spring 27, so that the coin is bounced toward the entrance 8a of the chute 8.

Next, the operation of the embodiment having the above configuration will be explained. When power is supplied to the motor 4, the rotating shaft 4a of the motor 4 rotates at a predetermined speed to drive the rotating plate 6. A large number of coins are stored in the coin storage section 15, and these coins are subjected to a force of gravity directed toward the rotating plate 6, and are stirred by the stirring projections 63, so that the coins do not rotate. It comes to rest on the inclined surface 60a of the plate 6. In this case,
Since the rotating plate 6 has a dish shape with the inclined surface 60a, the inclination becomes gentle below the inclined surface 60a, for example, at the position where the coin 7a is located, and the coin is placed on the inclined surface 6 of the rotating plate 6.
It is received in a stable state at 0a.

The coin received by the rotary plate 6 is hooked by a pin 10 and is held by a tapered surface 12 of a tube 12.
It is scooped upward while contacting b. When the coin passes the horizontal center line of the cylinder 12, it moves toward the center of the rotary plate 6 due to gravity, and the edge of the coin contacts the shoulder of the first protrusion 61, and then rises above this shoulder. I will be riding on. In this case,
The coin is held by the first protrusion 61 and the pin 10 so that it does not fall. When the coin rotates together with the rotary plate 6 and reaches its highest position, the tip of the scraper 13 touches the first protrusion 61.
Because it is placed in contact with or in close proximity to
The coin rides on this scraper 13.

Since the rotary plate 6 is plate-shaped, the inclination gradually becomes steeper as it goes upward, and the scraper 1
At position 3, the slope is the steepest. Therefore, since the coin stands upright, it becomes easier to enter the chute 8 which is disposed approximately vertically, and it also becomes easier to leave the rotary plate 6.

The coin that has landed on the scraper 13 is further pushed by the pin 10, and therefore moves while being guided by the scraper 13. When the coin moves on this scraper 13, it hits the roller 24, so the counter plate 22 is rotated clockwise against the spring 27. As a result, the pin 25 provided at one end of the counter plate 22 allows the micro switch 2 to be
6 turns on. Turn on this micro switch 26
The signal is sent to a counting device (not shown) such as a microcomputer. When this counting device counts a predetermined number of coins, it short-circuits the motor 4 to stop it suddenly.

By the way, in this way, the inclined surface 6 of the rotary plate 6
When the coin rolls on the scraper 13 while leaning against the pin 10, the outer circumference of the rotary plate 6 protrudes further forward than the pin 10, so that the outer circumferential edge of the rotary plate 6 It comes in contact with coins. As shown by the dashed line in FIG. 3, the inclined surface 60a of the rotary plate 6 is
If the scraper 13 is formed up to the outer periphery of the scraper 13, the amount of the protrusion becomes large and the coins on the scraper 13 often fall to the left. In this regard, in the rotating plate 6 used in the present invention, the inner surface on the outer peripheral side thereof is formed as a flat surface 60b, so that the outer peripheral edge of the rotating plate 6 escapes in a direction away from the inclined surface 60a. As a result, the protrusion of the rotary plate 6 on the outer circumferential side is regulated so that it does not exceed the necessary level, so that it is possible to eliminate the problem caused by coins falling from the top of the scraper 13.

When the center of the coin passes the center of the roller 24, the spring 27 causes the counter plate 22 to quickly return counterclockwise to the position where it collides with the protrusion 28, so that the coin is bounced toward the entrance 8a of the chute 8. It can be done. Since this chute 8 stands almost perpendicular to the base plate 1, it can smoothly receive the coin in an upright state without colliding with the entrance 8a, and the frictional force caused by the leaning of the coin is small. It can be rolled smoothly inside the chute 8. Since the chute 8 has a passageway wide enough to pass one coin, the passageway will not be clogged by overlapping coins. The coins that have entered the chute 8 roll in a downwardly inclined passage and are sent to a coin outlet or a vertically arranged coin elevator.

When a large number of coins are stored in the coin storage section 15 or when the rotary plate 6 rotates at high speed, two coins may be scooped up while being overlapped by the rotary plate 6. In this case, the coin in front, for example 7e, stands up as it moves upward, so it falls due to vibrations caused by the coin's agitation or the like. If the coin does not fall even after this, the edge of the coin has come off the first protrusion 61 and is in contact with the outer periphery of the second protrusion 62, so it will not ride on the scraper 13. Since the rotating plate 6 is plate-shaped, a gap is formed between the coin 7e and the coin below, making it easy to peel off the coin 7e with the scraper 13. The coin 7e is guided by the ridgeline 13c of the scraper 13 and falls below it. A coin that has fallen to the lower side is caught by the empty pin 10, such as coin 7d, and is scooped up again.

Even when the number of coins in the coin accommodating portion 15 is running low, the coins can easily lean against the rotating plate 6 because the rotating plate 6 has a plate shape. In addition, since the coins leaning on the cover part 15b of the coin storage part 15 are pushed by the stirring protrusion 6d, the coins are changed in direction and rest on the rotary plate 6, ensuring that no coins are left behind. It can be scooped up using the rotary plate 6.

In place of the rotary plate 6 of the embodiment described above, a rotary plate 70 as shown in FIG. 4 may be used.
This rotary plate 70 has a plurality of inclined planes 71 arranged along its circumference on its inner surface, and each plane 71 is inclined at an angle of about 20°, for example, so that it becomes lower toward the center as in the previous embodiment. It is slanted. A flat surface 70b is formed on the inner surface of each of these flat surfaces 71 on the outer peripheral side. Further, instead of installing pins 10 on the rotary plate 6 to push out coins, a rising portion 72 is provided at a required portion of the rotary plate 70 so as to form a dogleg shape on a plane. Furthermore, like the above-mentioned rotary plate 10, the first protrusion 73,
A second protrusion 74 is provided, and a coil spring 75 is attached to stir the coins. Such a rotary plate 70 can be easily manufactured by drawing or the like, and is similar to the rotary plate 6 described above.
A similar effect can be obtained. In addition, by making the rising part 72 into a "dog" shape on a plane and pushing out the coin with its bent part (which has an obtuse angle), even if the outer periphery of the coin has serrations, The rising portion 72 does not dig into the serrations, and the coin can be pushed out smoothly.

[Effect of idea]

As described above, according to the coin dispensing device of the present invention, the inner surface on the outer peripheral side of the rotary plate, which is formed into a dish shape by making the inner surface an inclined surface, is tilted in a direction away from the inclined surface. ing. As a result, it is possible to prevent the coin being separated from the rotating plate by the scraper and being moved towards the chute from being pushed forward by the outer periphery of the rotating plate and falling from the chute. It becomes possible to further improve the coin dispensing efficiency of the coin dispensing device using the rotary plate.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing one embodiment of the present invention. FIG. 2 is a sectional view of FIG. 1. FIG. 3 is a sectional view showing the main parts of the rotating plate. FIG. 4 is a perspective view showing another embodiment of the rotating plate. 4... Motor, 6... Rotating plate, 60a... Inclined surface, 60b... Flat surface, 61... First protrusion, 6
2... Second protrusion, 63... Stirring protrusion, 8... Chute, 8a... Inlet, 10... Pin, 12...
Cylinder, 13... Scraper, 15... Coin storage section, 22... Counter plate, 26... Micro switch, 70... Rotating plate, 70b... Flat surface, 71
...Slope surface.

Claims (1)

[Claims for Utility Model Registration] (1) A rotary plate whose inner surface is inclined so that the center side is concave in the shape of a dish is tilted and rotated in a coin storage section, and the inclined surface and the inner surface are formed on the center side of the rotary plate. Coins that have been sent upward by the support of the protrusions that protrude in a step-like manner and the protrusions that protrude inward from the outer peripheral side of the rotary plate are guided along the inclined surface and the tip is brought close to the protrusions. A coin dispensing device configured to feed coins one by one onto a scraper arranged at a distance, wherein the inner surface along the outer periphery of the rotary plate is tilted in a direction in which coins are retreated from the inclined surface. . (2) The coin dispensing device according to claim 1, wherein the inclined surface is composed of a plurality of planes arranged radially on the inner surface of the rotary plate so as to surround the protrusion. .