JPH0445085Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The invention provides a coin feeding disk at the bottom of a hopper that stores a large number of coins or medals in bulk.
This relates to a hopper-type coin dispensing device that dispenses a required number of coins from a hopper by rotating a coin feeding disc as required, and in particular, the coin dispensing device dispenses coins in the hopper of this type of coin dispensing device. It relates to a means for stirring.

(Prior Art) Conventionally, as a coin stirring rod of a hopper type coin feeding or dispensing device, for example, as described in Japanese Patent Application Laid-Open No. 54-5498, A radial-shaped stirring member made of elastomer material of a predetermined thickness is fixed on the top, and
As described in Japanese Patent Publication No. 19646, a truncated pyramid-shaped protrusion is provided at the center of the coin feeding disk, and this ridgeline is configured as a stirring element.
As described in Publication No. 100278, a plurality of coil springs are provided extending radially from the center of the coin feeding disk along the surface of the central platform, and as described in Publication of Utility Model Publication No. 52-33277. As shown in the above, a plurality of stirring members are protruded from the surface of the peripheral part of the central platform of the coin feeding disk at positions spaced apart in the circumferential direction, and as described in Publication of Utility Model Publication No. 55-33409. Various structures are known depending on the type of coin dispensing device, such as one in which a stirring plate is fixed to the central platform of a rotating disk and stirring claws are protruded from both ends.

However, as mentioned above, the conventional stirring member or stirring element stirs the coins located near the surface of the coin feeding disk within the hopper by pushing them in the direction of rotation of the coin feeding disk. The agitation effect on the coins in the part spaced upward from the surface of the coin feeding disk is not sufficient, and therefore, when increasing the depth of the hopper to increase the number of coins that can be accommodated in the hopper, it is necessary to The coin bridging phenomenon occurs inside the hopper, which is located upward from the surface of the coin feeding disk, and even though many coins remain in the hopper, the coins are not fed out by the coin feeding disk. In particular, in a coin dispensing device having a narrow and deep hopper, there is a problem in that a coin bridging phenomenon occurs within the hopper, resulting in a situation similar to coin outage.

In order to prevent the above-mentioned coins from stagnation and bridging in the hopper, it is possible to increase the stirring capacity by increasing the height of the projections protruding from the disk surface. Since any stirring member or element is located radially away from the axis of rotation of the coin feed disc, increasing the dimensions of the stirring member or element will significantly increase the stirring resistance and prevent the coins from rotating together with the stirring member. There is a problem in that the rotational load on the feed disk increases significantly. In order to solve this problem, the coins are removed from the portion of the hopper that is spaced upwardly from the surface of the coin feed disk located at the bottom of the hopper, without significantly increasing the rotational load on the coin feed disk. By directly stirring the coins in the hopper and moving them toward the coin feeding disk, the coins are stagnant,
Japanese Utility Model Application No. 62-57860 discloses a stirring means that can efficiently eliminate bridging and improve coin dispensing efficiency. In the stirring means described in this bulletin, a flexible first coin stirring rod is rotated coaxially and integrally with the coins on the rotating shaft of a coin feeding disk that opens at the bottom of a hopper that accommodates a large number of coins. The first coin stirring rod is connected to the hopper and extends upward into the hopper perpendicularly to the coin feeding disk, and a spiral protrusion protrudes from the outer periphery of the first coin stirring rod. A second rotating shaft rotated in the opposite direction is provided at a position spaced apart to the side of the disk rotating shaft, and a second flexible coin stirring rod is coaxially rotated integrally with the second rotating shaft. The second coin stirring rod has a spiral protrusion protruding from its outer periphery in the same winding direction as the spiral protrusion on the first coin stirring rod, and the second coin stirring rod has a hopper above the first coin stirring rod. It is extended inside. By configuring the stirring means in this way and by making the stirring rod extending upward into the hopper flexible, at least the upper end is curved by the coins in the hopper, and as a result, when rotating, the coin feeding circle is curved. The coins are stirred around each of the stirring rods in the hopper that are spaced above the plate, and the coins in the hopper are stirred by providing a spiral protrusion around the flexible stirring rod. The first coin stirring bar provides sufficient strength and propels the surrounding coins downward toward the coin feeding disk, and the second coin stirring bar extends into the hopper above the first coin stirring bar. This applies an upward thrust to the coins around it, thereby preventing bridging in the hopper and constantly moving the coins in the hopper toward the coin feeding disk without stagnation, resulting in smooth coin ejection. can be made to do so.

(Problems to be Solved by the Invention) The present invention is attached to the center of the coin feeding disk so as to rotate coaxially and integrally with the rotating shaft of the coin feeding disk described above, and is capable of stirring the coins in the hopper and feeding the coins at the same time. This is intended to increase the propulsion effect of the coin stirring rod that propels it downward toward the disk.

This increase in the propulsion effect of the coin stirring rod can be achieved by making the flexible coin stirring rod into a screw shape and increasing the height of the spiral protrusion. However, when the height of the spiral protrusion is increased, the flexibility of the coin stirring rod is reduced and it no longer bends elastically, reducing the effect of stirring the coins and the coin receiving hole of the coin feeding disc. There is a problem that it obstructs the entry of coins.

Therefore, the present invention has a large propulsion effect without impairing the flexibility of the coin stirring rod made of elastomer material, and also actively guides the coins into the coin receiving hole. It is an object of the present invention to provide a means for stirring coins suitably configured to improve the penetration of coins.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides a coin feeding disk 5 in which a plurality of coin receiving holes 11 are opened at circumferentially spaced positions, as shown in the drawings. A flexible coin stirring rod 25 made of an elastomer material is connected to the center of the coin feeding disc 5 coaxially with the rotating shaft 10 so as to rotate together with the coin feeding disc 5, and is inserted into the hopper 1 perpendicularly to the coin feeding disc 5. It is provided to extend upward, and is wound around the coin stirring rod 25 in a spiral with a winding interval S greater than the thickness t of the coin and smaller than 2t, so that the middle part has the outer diameter of the coin stirring rod 25 like a lantern shape or a spindle shape. A coil 26 wound in a shape with a much larger diameter and tapered upper and lower ends is attached to the coin stirring rod 25 so as to rotate integrally, and the lower end 26a of the coil is attached to the outside so that the lower end 26a of the coil is substantially in contact with the upper edge 11a of the coin receiving hole 11. It is characterized by having a diameter.

(Function) According to the present invention, a coil forming a spiral is attached to an elastomer stirring rod at only the upper and lower ends so as to rotate together, and the winding diameter at the middle portion is much larger than the outer diameter of the stirring rod. By doing so, the propulsive force during rotation can be increased, and moreover, it can be easily elastically deformed to produce a large stirring action.

When the stirring bar rotates, the coin largely enters between the successive spiral turns of the coil, receives a large propulsion action and stirring action, and the coin that escapes from between the spiral turns at the tapered lower end of the coil is pushed upwards. The pushing down action of the coins in the located coil helical turns or between the helical turns forces them into the receiving holes of the coin feed disc, thereby increasing the coin dispensing efficiency of the device.

(Embodiment) The drawing shows an embodiment of the present invention, in which 1 is a hopper for storing a large number of coins, the upper end of a cylindrical case 2 is fitted into the lower end of this hopper 1, and the cylindrical case is placed on an inclined base plate 3. The inclined substrate 3 is fixed on a support base 4 in a removable manner as is known in the art.

Inside the cylindrical case 2, a coin feeding disk 5 is rotatably mounted on an inclined base plate 3, and a disk boss portion 6
is supported in a support hole 7 provided in the inclined base plate 3,
A disk boss portion 6 is fixed to a coin feeding disk rotating shaft 10 driven by a drive motor 8 via an electric device 9, whereby the coin feeding disk 5 is rotated concentrically within the cylindrical case 2. It is configured like this.

The coin feeding disk 5 is provided with a plurality of coin receiving holes 11 spaced apart from each other in the circumferential direction and passing through the coin receiving holes 11 having a size that allows the coins to be dispensed to enter therein. A coin feeding arm 12 protruding from the lower surface of the coin feeding disk 5 with a thickness sufficient to feed one coin is provided extending in the radial direction to a circle connecting approximately the centers of the coin receiving holes 11, 11. The coin is configured to enter the receiving hole 11 and be pushed through the cylindrical case 2 onto the base plate 4 by the coin feeding arm 12 as the coin feeding disk 5 rotates.

An outlet hole 13 is opened in the lower part of the peripheral wall on one side of the cylindrical case 2, and the substrate 4 is opened downstream of the outlet hole 13 in the coin feeding direction by the coin feeding disk 5, which is rotated in the counterclockwise direction as shown by arrow A. An exit guide member 14 is provided protrudingly above, and the coins pushed onto the base plate 4 by the coin sending arm 12 are pressed against the exit guide member 14, so that the traveling direction of the coins is directed toward the exit hole 13. It is configured to be deflected.

A scraper 15 is provided on the base plate 4 on the outlet hole 13 side of the cylindrical case 2 in line with the coin feeding disk 5.
The same number of feeding blades 16 as the coin receiving holes 11 are provided extending radially in the radial direction, and the tips 16a of the feeding blades 16 pass through the opening 13a of the outlet hole 13 and pass through the coin feeding circle in the cylindrical case 2. A scraper 15 is arranged on the lower side of the plate 5 so as to protrude between each adjacent coin receiving hole 11, 11.

Further, the scraper 15 is fixed at its center to a scraper rotation shaft 17 which is rotated synchronously with the coin feeding disc rotation shaft 10 by a drive motor 8 via a reduction gear 9. is synchronously rotated in the opposite direction, that is, in the clockwise direction shown by arrow B, so that the coin feeding disk 5
After each coin sending arm 12 and each sending blade 16 of the scraper 15 cooperate to push the coin toward the exit guide member 14, each coin is sent to the exit hole 13 by each sending blade 16 of the scraper 15. The coin feeding arm 12 is moved to take the coin out of the cylindrical case 2.
The relative positions of the feed blade 16 and the feed blade 16 are determined.

On the substrate 3 are the feed blades 1 of the scraper 15.
Actuating lever arm 19 of proximity switch 18 for counting dispensed coins along the path of coins fed out by 6
An upper roller 20 is provided, which contacts the roller 20 before the coin is ejected through the coin ejecting chute 21 and rotates the operating lever 19 around a pivot pin 22 against the spring force of a spring 23. By activating the proximity switch 18, the dispensed coins are counted reliably.

In the illustrated example, a flexible first tube made of urethane rubber is used.
The coin stirring rod 25 is attached to the center of the coin feeding disk 5, that is, so as to rotate coaxially and integrally with the rotating shaft 10, and extends into the hopper 1 perpendicularly to the surface of the coin feeding disk 5, thereby stirring the coins. As shown in the figure, a steel wire coil 26 is spirally wound in a lantern shape with a winding interval S greater than the thickness t of the coin and smaller than 2t, as shown in the figure, and is rotated integrally with the coin stirring bar 25 at its upper and lower ends. The winding 26a at the lower end of the coil has an outer diameter substantially in contact with the upper edge 11a of the coin receiving hole 11. 27 is the coin feeding disk 5
The stirring and guiding protrusions projecting above are shown.

In addition, a flexible second coin stirring rod 28 made of urethane rubber, which is the same as the coin stirring rod 25 described above, is attached to the center of the scraper 15 so that it rotates coaxially and integrally with the scraper rotating shaft 17, and is perpendicular to the surface of the scraper. The first coin stirring rod 25 is placed inside the hopper 1.
The outer circumference of the second coin stirring rod 28 is also provided with a spiral with a winding interval S greater than the thickness t of the coin and smaller than 2t, with the middle part being much larger than the outer diameter of the coin stirring rod 28. A steel wire coil 29 wound into a spindle shape with a diameter is attached to the coin stirring rod 28 at its upper and lower ends so as to rotate together.

(Coin of the invention) According to the invention, a large propulsion effect can be obtained without impairing the flexibility of the coin stirring rod made of elastomer material, and coins can be easily inserted into the coin receiving hole, making it easier to use the device. Coin dispensing efficiency can be improved.

[Brief explanation of the drawing]

FIG. 1 is a partially sectional side view of a coin dispensing device according to the present invention, and FIG. 2 is a plan view of the device of FIG. 1 with the hopper removed. 1...Hopper, 2...Cylindrical case, 3...
Substrate, 4... Support stand, 5... Coin feeding disc, 6...
...Disk boss portion, 7...Support hole, 8...Drive motor, 9...Transmission device, 10...Coin feed disk rotation shaft, 11...Coin receiving hole, 12...Coin feed arm,
13...Exit hole, 13a...Opening, 14...Exit guide member, 15...Scraper, 16...Feeding blade, 16a...Tip, 17...Scraper rotating shaft, 25...First coin stirring rod , 26...Lantern-shaped coil, 28...Second coin stirring rod, 29...Spindle-shaped coil.

Claims (1)

[Scope of utility model registration request] A hopper that stores a large number of coins in loose form,
a coin feeding disk rotated by a rotating shaft at the bottom of the hopper, and a plurality of coin receiving holes having a diameter slightly larger than the coin diameter are provided in the coin feeding disk spaced apart in the circumferential direction, A flexible coin stirring rod 25 made of an elastomer material is configured to send out coins that have entered the coin receiving hole toward the exit by rotating the coin sending disk in a predetermined direction.
A coin stirring rod 25 is connected to the center of the coin feeding disk 5 so as to rotate together coaxially with the rotating shaft 10 of the coin feeding disk 5, and is provided perpendicularly to the coin feeding disk 5 and extending upwardly within the hopper 1. In a coin dispensing device in which a spiral coil is attached to the outer periphery of the coin so as to rotate integrally, the winding interval S of the spiral coil 26 is greater than the thickness t of the coin and smaller than 2t, and the outer shape of the coil is lantern-shaped or spindle-shaped. As shown in the figure, the middle part has a much larger diameter than the outer shape of the coin stirring rod 25, the upper and lower ends have a tapered shape, and the winding 26a at the lower end of the coil is substantially in contact with the upper edge 11a of the coin receiving hole 11. A coin dispensing device characterized by having a diameter.