JPH0219882Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention provides a coin feeding disk at the bottom of a hopper that accommodates a large number of coins or medals, and rotates the coin feeding disk to rotate the bottom of the hopper as required. The present invention relates to a hopper-type coin dispensing device for dispensing a predetermined number of coins from a coin dispensing device, and particularly to a device for stirring the coins in the hopper of this type of coin dispensing device.

(Prior Art) Conventionally, as a coin stirring means 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 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, and JP-A-60
- 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 No. 52-33277. As described, there is a coin feeding disc in which a plurality of stirring members are protruded from the peripheral surface of the central platform at positions spaced apart in the circumferential direction, and as described in Publication No. 1983-33409. 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 by pushing them in the rotational direction of the coin feeding disk within the hopper. A short and small agitation member protrudes from the coin feeding disk that rotates at the bottom of the deep hopper containing the coins, so that the agitation action does not reach the coins located far upward from the surface of the coin feeding disk. , these multiple coins tend to clump together and stagnate to form bridges, causing the problem that the coins are not fed out by the coin feed disc even though a large number of coins remain in the hopper. In particular, narrow hopper-type coin dispensing devices installed in game halls to dispense coins or medals into spaces approximately 100 to 120 mm wide between machines such as pachinko machines and throttle machines. In this case, a problem arises in which a coin bridging phenomenon occurs in the hopper, resulting in a situation similar to a coin run-out.

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 protrusions protruding from the disk surface, but the conventional method 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 in unison with the stirring member. There is a problem in that the rotational load on the feed disk increases significantly.

(Problem to be solved by the invention) The invention efficiently stirs coins in the hopper located at an upper position far from the surface of the coin feeding disk located at the bottom of the hopper, without significantly increasing the stirring load. The purpose of this invention is to provide a means to prevent these coins from clumping together and forming bridges.

(Means for Solving the Problems) As shown in FIG. 1, the present invention includes a hopper 1 with a large height that accommodates a large number of coins, and a coin feeding circle rotated by a rotating shaft 10 at the bottom of the hopper. In the coin dispensing device comprising a plate 5, a first coin stirring rod 25 is coaxially connected to the rotating shaft 10 of the coin feeding disk 5 and is vertically moved upward into the hopper 1 with respect to the coin feeding disk 5. The first
A spiral protrusion 27 is provided on the outer periphery of the coin stirring rod 25, and a second rotating shaft 17 that is rotated in the opposite direction to the disk rotating shaft 10 of the coin feeding disk 5 is connected to the disk rotating shaft 10.
The second rotating shaft 1
A second coin stirring rod 28 is coaxially connected to 7,
The first coin stirring rod 25 is attached to the outer periphery of the second coin stirring rod 28.
A spiral protrusion 30 in the same winding direction as the upper spiral protrusion is protruded, and the second coin stirring bar 28 is connected to the first coin stirring bar 2.
It is characterized by being provided in the hopper 1 in parallel with the hopper 5 and extending upwardly.

(Function) According to the present invention, as the coin feeding disk 5 rotates, the first coin stirring rod 25 extending upward from the coin feeding disk 5 into the hopper 1 rotates around its own axis at a fixed position. Possibly, the first coin stirring rod 2
A thrust is applied in the axial direction to the coins in the hopper located around the second coin stirring rod 25, and at the same time, the second coin stirring rod 28 similarly moves its own axis at a fixed position spaced laterally from the first coin stirring rod 25. by rotating the second coin stirring rod 25 in the opposite direction to the first coin stirring rod 25.
An axial thrust in the opposite direction to the axial thrust by the first coin stirring rod 25 is applied to the coins in the hopper located around the coin stirring rod 28, and these opposite axial thrusts are used to move the coins in the vertical direction, respectively. The coins are moved to the top of the hopper to agitate the coins and prevent them from clumping together, thereby preventing the formation of bridges. Although the coin stirring rods 25 and 28 extend long into the upper part of the hopper, they are connected to the respective rotating shafts on the same axis and rotate around their own axes at fixed positions. This prevents a significant increase in load.

(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 8 provided in the inclined base plate 4,
A disk boss portion 6 is fixed to a coin feeding disk rotating shaft 10 driven by a drive motor 8 via a transmission 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 entering the receiving hole 11 is configured to be pushed inside the cylindrical case 2 onto the base plate 4 by the coin sending arm 12 as the coin sending disk 5 rotates.

An outlet hole 13 is opened in the lower part of the circumferential 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 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 lower end of the coin stirring rod 25 is fixed to the center of the coin feeding disk 5, that is, coaxially connected to the rotating shaft 10, and extends into the hopper 1 perpendicularly to the surface of the coin feeding disk 5. A coil spring 26 is attached around the coil spring 25 as shown in the figure, and a clockwise spiral protrusion 27 is provided on the outer periphery.

In addition, the lower end of a flexible first coin stirring rod 28 made of urethane rubber, which is the same as the coin stirring rod 25 described above, is fixed to the center of the scraper 15, that is, connected coaxially to the scraper rotating shaft 17, and the surface of the scraper is A coil spring 29 is attached to the outer periphery of the second coin stirring rod 28, and a clockwise spiral protrusion 30 is provided on the outer periphery of the second coin stirring rod 28. There is.

By attaching clockwise ordinary coil springs around the first and second coin stirring rods 25 and 28 in this way, these coin stirring rods 2
The first coin stirring rod 2
The coins around the second coin stirring rod 28 are propelled downward and moved, and the coins around the second coin stirring rod 28 are propelled upward and moved. Therefore, the coins in the hopper 1 can be agitated in the vertical direction and the coins can be propelled and fed toward the coin feeding disk 5 rotating within the cylindrical case 2.

As mentioned above, in the illustrated example, the coin stirring rod 2
Coil springs 26, 29 are attached to the outer periphery of the coin stirring rods 5, 28 to provide the outer peripheral spiral protrusions 27, 30, but the spiral protrusions can be integrally molded and provided on the outer periphery of a coin stirring rod having appropriate elasticity. Of course.

(Effect of the invention) According to the invention, the coins in the hopper located in the upper position far from the surface of the coin feeding disk are efficiently stirred without a large load, and the coins form a lump in the upper part of the hopper. Formation of bridges can be prevented, thereby providing a coin dispensing device with excellent dispensing efficiency.

[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 , 27...Spiral protrusion, 28...Second coin stirring bar, 30...Spiral protrusion.

Claims (1)

[Scope of utility model registration request] In a coin dispensing device comprising a hopper that accommodates a large number of coins and a coin feeding disc 5 rotated by a rotating shaft 10 at the bottom of the hopper, the first coin stirring rod 25 controls the rotation of the coin feeding disc 5. The first shaft is connected to the shaft 10 on a coaxial line and is provided perpendicularly to the coin feeding disk 5 and extends upwardly within the hopper 1.
A spiral protrusion 27 is provided on the outer periphery of the coin stirring rod 25, and a second rotating shaft 17 that is rotated in the opposite direction to the disk rotating shaft 10 of the coin feeding disk 5 is connected to the disk rotating shaft 10.
The second rotating shaft 1
A second coin stirring rod 28 is coaxially connected to 7,
The first coin stirring rod 25 is attached to the outer periphery of the second coin stirring rod 28.
A spiral protrusion 30 in the same winding direction as the upper spiral protrusion is protruded, and the second coin stirring bar 28 is connected to the first coin stirring bar 2.
5. A coin dispensing device characterized in that the coin dispensing device is provided in a hopper 1 in parallel with the coin dispensing device 5 in an upwardly extending manner.