JPH0749574Y2 - Coin discharging device of coin processing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a coin discharging device of a coin processing machine for counting inserted coins, mainly coins, or sorting by coins.

[Conventional technology]

FIG. 5 shows a general structure of the conventional coin processor seen from above, and FIG. 6 shows a sectional structure taken along the line I--I of FIG. An outline of the operation of the conventional coin processing machine will be described with reference to FIGS. 5 and 6. First, the mixed coins put into the hopper 1 of FIG. Exit gap control section of hopper 1 (coin delivery exit)
The coins are separated one by one by 3 and sent out to the coin transport passage 4.

The coins sent to the coin transport passage 4 are pulleys 5 and 6
The belt 7 wound around the sheet conveys it in the direction of arrow B in the figure. The pulleys 5 and 6 rotate by receiving power transmission from a motor (not shown).

After that, when the coin comes into contact with the slope 91 of the guide 9, the rubber roller 8 bends the coin at a right angle in the direction of arrow C in FIG. At that time, the rubber roller 8 rotates by receiving power from a motor and a belt (not shown). In the transfer passage 11, a drive shaft 12 fixed to a pulley 13 receives a driving force by a motor (not shown), and a belt 15 and a driven pulley 14 that rotate thereby cause a coin to move on the transfer passage 11 in the direction of arrow D in FIG. Is conveyed in the direction.

At this time, the pulley 5, the pulley 6, and the driven pulley 14 each independently perform a swinging motion as shown by an arrow in this figure when a coin is conveyed. As a result, coins are stably transported. For example, the driven pulley 14 is attached to a supporting plate 17 fixed to the base plate 16 and a pulley supporting plate 20 having a shaft 19 supported by a pressing roller supporting plate 18 as a fulcrum and swings as shown by an arrow in FIG. Do dynamic exercise.

The distance between the window holes 22a to 22f of the transfer passage 11 and the coin rail 23,
That is, the window hole dimensions 22a to 22f are, as shown in FIG. 5, slightly larger than the outer dimensions (¥ 1, ¥ 50, ¥ 5, ¥ 100, ¥ 10, ¥ 500) of each coin, and the coins concerned. It is set to be smaller than the outer diameter of coins that are one rank larger than the outer diameter of.

Further, the window hole dimensions 21a to 21f are set so as to be gradually increased along the traveling direction of the arrow D. For this reason, the coins that have been conveyed fall at the predetermined window hole.

In this way, coins fall from the specified window holes in order of decreasing outer diameter,
Sensors 32 (32a-3) provided on the chute 31 (31a-31f)
2f) counts and falls into the collection box 33 (33a to 33f) to enable sorting, counting, and storage of each type of money.

FIG. 7 shows a sectional structure of the coin discharging device of FIG. 1 taken along the line II-II. As shown in the figure, the coins put into the hopper 1 are the coins C and the surface 2a of the rotary disc 2.
The coin C also rotates with the rotation of the rotating disk 2 due to the frictional force between At that time, the coin C moves to the outer periphery of the hopper 1 by the centrifugal force and is conveyed, is discharged to the outside from the opening of the outlet gap regulating portion 3, and is conveyed on the conveying passage 4 by the belt 7 of FIG.

Next, the structure of the coin discharging device described above will be described. The boss portion 2H of the rotating disc 2 is placed on the upper inner ring portion 22a of the bearing 22 placed on the seat portion 21a of the hopper base 21. Further, the central shaft 24 is fixed to the center of the rotating disc 2 via a connecting pin 25, and transmits a rotating force to the rotating disc 2. Head shape of this shaft 24
24a has an eccentric shape to break the balance so that coins do not stay in the central portion. The shaft 24 combined with the rotating disc 2 is inserted into the bearing 22, and is guided in the rotating direction by combining another bearing 23 from the lower side,
The structure is such that the rotating disk 2 does not shake. Also, at the position below the lower bearing 23, the connecting boss
The shaft 26 is covered with the shaft 24, and the screw 26a provided on the connecting boss 26 is pressed against the D cut portion 24b of the shaft 24 to fix the connecting boss 26.

By attaching the connecting boss 26, it is possible to prevent the rotary disc 2 and the shaft 24 from coming off upward, and prevent the disc from swinging when a coin is inserted into the rotary disc 2.

The connecting boss 26 also serves as a guide for the connecting shaft 27 that engages with the output shaft 28 of the motor 29 and the shaft 24, and the D cut portion 27a of the connecting shaft 27 and the D cut portion 24c of the shaft 24 are combined. Being a motor 29
Is transmitted to the shaft 24 and the rotary disc 2. The connecting shaft 27 is fixed to the D cut portion 28a of the output shaft 28 of the motor 29 with a screw 27b.

With the above configuration, the rotation of the motor 29 is transmitted to the rotary disc 2.

In order to reliably transmit the rotational force of the rotary shaft 24 to the rotary disc 2, a long groove into which the connecting pin 25 is inserted in the rotary disc 2 and a relief portion for accommodating the head shape 24a of the rotary shaft 24. It is necessary to have a step. Further, the rotating disc 2 is selected from a material having a relatively high hardness in order to prevent abrasion due to friction with coins. Therefore, conventionally, an iron casting is machined or manufactured, or iron or stainless steel is used. The bar material was cut by a lathe to a predetermined diameter φD and then manufactured by milling or drilling.

[Problems to be solved by the device]

However, in the conventional coin discharging device as described above, the centrifugal force caused by the rotation of the rotating disc moves the coin to the peripheral edge thereof and tries to send the coin to the coin sending port.
As shown in the figure, the coins 100 are in close contact with each other on the peripheral edge of the rotating disk 2, so that a so-called coin bridge is generated, so that the coins 100 are not delivered from the coin delivery port 3 to the outside (coin transfer passage) 4. There was a serious problem that could happen.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned drawbacks and to provide a coin discharging device for a coin processing machine in which the generation of coin bridges is prevented and coins are smoothly delivered to the outside.

[Means for Solving the Problems]

In order to achieve such an object, the present invention has a hopper fence that holds a plurality of inserted coins, a coin delivery port that opens at the lower end of the hopper fence, and moves coins to the peripheral edge of the hopper fence by centrifugal force due to rotation. And a rotating disc that sends out one by one from the coin delivery port to the outside, and a curved smooth surface that pushes upward the coins that come into contact when the rotating disc rotates at a position near the periphery of the rotating disc. It is characterized in that a protrusion having a curved surface is formed.

[Action]

According to the present invention, as described above, the protrusion having the smooth curved surface that is curved so as to push up the coin abutting when the rotating disc is rotated is provided in the vicinity of the peripheral edge on the rotating disc. By rotating the smooth protrusions formed on the rotating disk within the outer diameter of one coin from the peripheral edge of the hopper fence, with respect to the coin bridge generated by contact between the peripheral edges of the fence and the coins,
Since the coin bridge is vibrated while pushing up the coins in the thickness direction of the rotating disc, the contact between the end faces of the coins is released and the coin bridges are prevented from being generated, whereby the coins are smoothly sent out one by one to the outside. .

That is, according to the present invention, the protrusions having the smooth curved surface as described above sequentially push upward the coins that are in the bridge state (stop state) and are connected to the peripheral edge when the rotating disc rotates, so that the end surfaces of the coins come into contact with each other. To prevent the occurrence of bridges.

〔Example〕

 Hereinafter, embodiments of the invention will be described in detail with reference to the drawings.

FIG. 1 shows an example of the entire structure of a coin discharging device of a coin processing machine to which the present invention is applied, and FIGS. 2 and 3 show details of the rotary disc portion of FIG. The structural difference between the embodiment of the present invention shown in FIG. 1 and the conventional example shown in FIG. 7 lies in the rotating disk portion. The rotating disc portion will be described in detail below.

As shown in FIGS. 1 to 3, the rotary disc part according to the present invention comprises a flat plate-shaped rotary disc 2A and a combination of the rotary disc 2A and a flange-shaped boss 35 which is a separate body. Become. At the center of the rotating disc 2A, a through hole 2f of the same shape into which the arcuate stepped head of the shaft 24 is insertably inserted, and a plurality of holes are formed on the same circumference in the vicinity of the through hole 2f. The provided counterbore 2e is formed.
On the other hand, the boss 35 has a through hole into which the shaft portion (body portion) of the shaft 24 is inserted, and is integrally fixed to the back surface of the rotating disc 2A by a plurality of flat head screws 36 at the center position of the rotating disc 2A. . At this time, the head of the countersunk screw 36 is seated in the counterbore 2e of the rotary disc 2A.

With the above configuration, when assembling the device, the screw hole 35 of the boss 35 placed on the upper inner ring of the upper bearing 22 of FIG.
Align the counterbore 2e of the rotary disc 2A with a (Fig. 1), and stack it, and fix it with the flat head screw 36.

Next, the D-cut portion 24d of the shaft 24 is inserted in alignment with the D-cut portion 2g of the hole 2f of the rotary disc 2, and the shaft 24 and the motor output shaft 28 are connected in the same manner as in the conventional example shown in FIG. .

With the above configuration, the rotation of the motor output shaft 28 is transmitted to the shaft 24, and the rotational force is transmitted to the disc 2A via the D cut portion 24d of the shaft 24 and the D cut portion 2g of the rotating disc 2A. The boss 35 is fixed to the disc 2A to prevent the rotating disc 2A from swinging.

Further, as shown in detail in FIGS. 2 and 3, the rotating disk 2A has a hemispherical shape or a smooth conical projection at the top.
101 is integrally formed. As shown in FIG. 4, this protrusion 101 is set within the outer diameter of one coin from the peripheral edge of the hopper fence 1A, and even if a coin bridge occurs, the coin 100 can be replaced by the plate thickness of the rotating disc 2. Since it rotates so as to vibrate while pushing up in the direction (vertical direction),
The end face contact between coins is released. Further, since the protrusion 101 is formed only at one place on the rotary disc 2A and has a smooth curved surface such as a hemispherical shape or a head-like smooth cone shape, the coin jamming that the coin is not discharged from the coin outlet 3 to the outside. There is no adverse effect, and the effect on the coin ejection timing during coin ejection operation is extremely small and cannot be ignored.

In this way, the protrusions 101 on the rotating disc 2A make it difficult for the end faces of the coins 100 to come into contact with each other, so that a coin bridge caused by the end face contact is prevented from occurring, and
Even if a coin bridge is generated, the rotating projection 101 pushes up the coin 100 to release the contact between the end faces of the coins, and the coin bridge collapses. Therefore, according to the present embodiment, as shown in FIG. 4, the coins 100 in the hopper 1 are smoothly sent one by one from the coin outlet 3 to the external coin transport passage 4 and the coins are not discharged. Is eliminated.

[Effect of device]

As described above, according to the present invention, since the protrusion having the curved surface which is curved so as to push up the coin abutting when the rotating disc is rotated is provided in the vicinity of the peripheral edge on the rotating disc, By this protrusion, coins that are in a bridge state (stopped state) are sequentially pushed upward by being connected to the peripheral edge when the rotating disc rotates, thereby releasing the end face contact between the coins and preventing the occurrence of bridges. A remarkable effect that a smooth discharging operation can always be ensured is obtained.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing the overall structure of a coin discharging device of a coin processing machine according to an embodiment of the present invention, and FIG. 2 is a plan view showing the structure seen from above the rotary disc portion of FIG. 3 is a longitudinal sectional view showing a sectional structure of the rotary disc portion taken along the line AA of FIG. 2, and FIG. 4 is a plan view showing an operation mode of the coin discharging device of FIG. FIG. 6 is a plan view showing the overall construction of a conventional coin processing machine, FIG. 6 is a longitudinal sectional view showing a sectional structure taken along the line II of FIG. 5, and FIG. 7 is II-II of FIG. FIG. 8 is a vertical cross-sectional view showing the structure of the coin discharging device along the cutting line, and FIG. 8 is a plan view showing an operating mode of the rotary disc portion of FIG. 1 ... Hopper, 1A ... Hopper fence, 2A ... Rotating disk, 24 ... Shaft, 100 ... Coin, 101 ... Protrusion.

Claims (1)

[Scope of utility model registration request] 1. A hopper fence that holds a plurality of inserted coins, a coin delivery port that opens at the lower end of the hopper fence, and a centrifugal force generated by rotating the coins to move them to the periphery of the hopper fence. A rotating disc that sends out one by one from the coin delivery port to the outside, and a curved smooth surface that pushes upward the coins that come into contact with the rotating disc at the vicinity of the peripheral edge when the rotating disc rotates. A coin discharging device for a coin processing machine, wherein a protrusion having a curved surface is formed.