JPH11203524A - Coin discharging device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attain lightening in weight by reducing metallic materials without damaging any function by forming the rotor and rotor guide of a coin feeding part of synthetic resin materials having wear resistance and reducing the coefficient of friction on the surface. SOLUTION: A rotor 7 and a rotor guide 9 of a coin feeding part 4 are formed of the synthetic resin materials having wear resistance and reducing the coefficient of friction on the surface. For example, a polyacetal (POM) resin can be used. Concerning the rotor 7 or rotor guide 9 formed from such POM resin, the coefficient of friction on its surface becomes about 0.1, the friction coefficient is remarkably reduced in comparison with the coefficient 0.67 of friction on the surface of conventional metallic one, a surface to easily slide is provided and further, the wear resistance on its surface is improved as well. Besides, since the rotor 7 is made of synthetic resin, weight is reduced in comparison with the conventional metallic rotor, therefore, inertia at the time of device operating is reduced and a load on a driving motor is reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coin discharging device incorporated in a money changing machine, various vending machines, and the like.

[0002]

Generally, in a vending machine having a mechanism for exchanging bills into coins and a mechanism for dispensing coins as change, for example, Japanese Patent Publication No. 53-31
No. 759 and Japanese Unexamined Utility Model Publication No. 3-70678, coins are stored in a coin hopper prepared for each denomination, and coins are sent out from the coin hopper as needed. A coin ejection device is provided inside. FIGS. 1 to 4 show the coin discharging device 1, in which a coin hopper 2 whose upper part is largely open as a coin slot, and a coin feeding part 4 connected to a lower opening 3 of the coin hopper 2 are shown. And a payout passage portion 5 adjacent to the coin feeding portion 4. The lower opening 3 of the coin hopper 2 is inclined, and the coin feeding portion 4 connected to the inclined lower opening 3 is, as shown in FIGS. 1 and 2, a circle of a coin of a specific denomination. A disk-shaped rotor 7 having a plurality of coin introduction holes 6 corresponding to its shape is rotatably provided on a coin receiving surface 8, and an annular rotor guide 9 is attached to the coin receiving surface 8 to form the rotor. 7 is disposed inside the rotor guide 9, and the connection is achieved by fitting the lower opening 3 of the coin hopper 2 into the inner edge of the upper end of the rotor guide 9. At the upper end of the inclined side of the rotor guide 9, there is a coin outlet 10 opened to a size through which coins pass, and the payout passage portion 5 is attached to a position facing the coin outlet 10. In discharging coins by the coin discharge device 1, when the rotor 7 is rotated by receiving power from the drive motor 11 in a state where coins are inserted into the respective coin introduction holes 6, the coins are discharged from the coin delivery unit 4. The rotor guide 9 is provided so as to guide the coin toward the coin outlet 10 while sliding the coin against the coin receiving surface 8 by the rotation of the rotor 7. Coin discharge port 1
0, and the coin a reaching the coin outlet 10 under the centrifugal force generated by the rotation of the rotor 7
As shown in FIG. 3, it enters the payout passage section 5 and is sent out to a required payout port.

[0003] Each component of the above-mentioned conventional coin ejection device is manufactured from a metal member, so that the production cost is high, and this is one of the factors that make the entire coin ejection device heavier. For example, the rotor and the rotor guide in the coin feeding portion are made of metal formed by die casting or sintering, and the metal portion is also used in the payout passage portion. Then, in the rotor, the rotor guide, and the payout passage portion, coins hit or rub against each other, so that there is an inconvenience that abnormal noise and metal powder are easily generated.

On the other hand, coins enter the coin introduction hole at an inappropriate angle and bite between the rotor and the coin receiving surface, or coins bite between the rotor and the rotor guide. The rotor may be in a locked state in which the rotor does not rotate with a normal rotational force from the drive motor. In order to release the locked state, as shown in FIG. A lock release knob 13 is attached to the end, and the lock release knob 13 is devised so that the locked state can be broken by manually rotating the lock release knob 13 manually. However, this unlocking knob is also made of metal such as aluminum, which is one of the causes of making the coin ejection device heavy. In particular, since the unlocking knob is set to a certain size or more so that the rotating shaft that has stopped rotating can be manually rotated by a fingertip, the weight of the unlocking knob is reduced. Can't be smaller. Further, there is an inconvenience that a large load is applied to the drive motor that is operating normally. Also, as a countermeasure against slipping when rotating with a fingertip, processing to make the outer peripheral surface uneven is performed, but if a deep cutting groove is provided, high processing cost will be required, and therefore, the degree of processing is small. Lock release knob which is easy to rotate without increasing the manufacturing cost of coin ejector, which is currently provided with non-slip, such as knurling with a relatively shallow cutting depth. Was difficult to obtain. In view of the above circumstances, the present invention has been made to reduce the amount of metal material without impairing the function of the coin ejection device, to reduce the weight of the coin ejection device, and
An object of the present invention is to eliminate inconveniences such as generation of abnormal noise, generation of metal powder, and increase in processing cost due to use of a metal material.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above-mentioned problems, and has a disk-shaped rotor having a plurality of coin introduction holes formed in a lower opening of a coin hopper inside an annular rotor guide. A coin delivery portion, which is rotatably disposed on the coin delivery portion, and a payout passage portion is provided at a position facing a coin outlet of the coin delivery portion, and coins of a rotor which rotate coins fed into the coin hopper rotate. In the coin discharge device configured to enter the introduction hole and to be fed out of the coin toward the payout passage by the rotation of the rotor, the rotor and the rotor guide of the coin feed-out unit may include:
The object of the present invention is to solve the above-mentioned problems by providing a coin discharging device characterized by being made of a synthetic resin material having abrasion resistance and a small surface friction coefficient.

In another aspect of the present invention, a coin delivery portion is provided in which a disc-shaped rotor having a plurality of coin introduction holes is rotatably disposed in an annular rotor guide at a lower opening of a coin hopper. And a payout passage portion is provided at a position facing the coin discharge port of the coin feeding portion,
In a coin discharging device in which the coin fed into the coin hopper enters a coin introduction hole of a rotating rotor and the coin is fed toward the payout passage by rotation of the rotor, the payout passage includes: A coin discharging device characterized by being made of a synthetic resin material having abrasion resistance and having a small surface friction coefficient. The coin discharging device is provided to solve the above problem.

Still another aspect of the present invention is a coin feeder in which a disc-shaped rotor having a plurality of coin introduction holes is rotatably arranged inside an annular rotor guide at a lower opening of a coin hopper. And, a payout passage portion is provided at a position facing a coin discharge port of the coin sending portion,
In a coin ejection device in which the coin fed into the coin hopper enters a coin introduction hole of a rotating rotor and the coin is sent out toward the payout passage by rotation of the rotor, the rotor guide includes: A coin discharging device characterized in that a plurality of dust removing holes are opened, and the problem is solved by providing the coin discharging device.

Still another invention is that a drive motor for rotating the rotor is mounted on a rotor for guiding coins fed from a coin hopper in a predetermined direction by rotation, and an unlocking knob is mounted on a rotation shaft of the drive motor. In a coin discharging device having a configuration in which the rotation shaft can be forcibly rotated by rotating the lock release knob, the lock release knob is thin and made of a synthetic resin material and provided in a large-diameter disk shape. A coin discharging device characterized by the above feature, and is provided with the coin discharging device to solve the above problem. Further, in the present invention, it is preferable that the concave / convex portion for fingerholding is provided integrally over the periphery of the unlocking knob.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described in detail based on embodiments. 1 to 4 are denoted by the same reference numerals, and the description thereof will be omitted. That is, in the first invention, the coin delivery unit 4
The rotor 7 and the rotor guide 9 are formed from a synthetic resin material having abrasion resistance and a small surface friction coefficient. For example, a POM (polyacetal) resin can be used. In the case of a rotor or a rotor guide formed of the POM resin, the surface has a coefficient of friction of 0.1.
About 1, which is much lower than the conventional coefficient of friction of metal rotors and rotor guides of 0.67, that has a slippery surface, and that the surface has high wear resistance. Becomes Further, since the rotor is made of synthetic resin, the weight is smaller than that of a conventional metal rotor, so that the moment of inertia during operation of the device is reduced, and the load on the drive motor is reduced.

In the second invention, the dispensing passage portion 5 shown in FIG. 3 is made of a synthetic resin having good wear resistance and a small surface friction coefficient similarly to the rotor and the rotor guide described above. It is formed from a material, and is provided so that the inner surface of the dispensing passage portion 5 has wear resistance and a low friction coefficient. In the case of the dispensing passage section 5, for example, a POM (polyacetal) resin can be used as a molding material. The dispensing passage portion 5 formed of the POM resin has a surface friction coefficient of about 0.1 in the same manner as in the above-described example, and is 0, which is the friction coefficient of the inner surface of the conventional dispensing passage portion made of metal. .67, has a much lower coefficient of friction, has a slippery surface, and has higher inner surface wear resistance. Further, since the payout passage is made of synthetic resin, the weight is smaller than that of the conventional metal, and the entire weight of the coin discharging device 1 is reduced.

In the third invention, as shown in FIG. 5, a plurality of dust removing holes 14 are provided in the rotor guide 9 of the coin feeding section 4 in the circumferential direction. As a result, the weight of the rotor guide 9 itself is reduced, and metal powder, fine dust, and the like generated by the operation of the coin feeder 4 are discharged to the outside of the coin discharge device through the dust removal hole 14. As a result, there is no accumulation of metal powder and fine dust in the coin feeding section 4. FIG. 5 shows a state where the rotor guide is viewed from a direction different from the side where the coin outlet is provided.

In the fourth invention, as shown in FIG. 6, the lock release knob 13 attached to the lower end of the rotating shaft 12 of the drive motor is a disk-shaped member formed of a synthetic resin material. Only the central portion 15 which is a portion to be attached to the rotating shaft 12 is formed to be thick, and the thin plate portion 16 integrally disposed therearound is greatly extended, so that it has a larger diameter than the conventional unlocking knob. It is provided as follows. In the unlocking knob 13, on the peripheral edge of the thin plate portion 16, a fingering concave / convex portion 17 having a large amount of entering and exiting in the radial direction is provided in an integrated state when the unlocking knob is formed. For example, in the example shown in FIG. 6, the uneven portion 17 is provided in a wavy shape with large ingress and egress in and out in the radial direction to improve finger grip, and to manually rotate the knob when rotating the knob. Rotation can be easily performed. In the above embodiment, the uneven portion is described as having a corrugated shape, but the present invention is not limited to this embodiment. Furthermore, an example in which the rotor and the rotor guide of the coin feeding portion are provided from a synthetic resin material, an example in which the payout passage portion is provided from a synthetic resin material, an example in which a dust removal hole is provided in the rotor guide, and an unlocking knob are provided. Although the examples provided from the synthetic resin material have been described as single examples, the techniques described in the respective embodiments may be combined.

[0013]

As described above, in the coin discharging device, the rotor of the coin feeding portion, the rotor guide, and the discharge passage portion are made of a synthetic resin material having abrasion resistance and a small surface friction coefficient. The lock release knob is made thin with a synthetic resin material to have a large-diameter disk shape, and by providing a dust removal hole in the rotor guide of the coin feeding portion, the weight of each member is reduced, so that The weight of the coin discharging device itself is reduced.

The rotor and the rotor guide of the coin feeding section are made of a synthetic resin material having wear resistance and a small surface friction coefficient, so that the friction coefficient between the rotor and the rotor guide is reduced. Is small, and when coins come into contact with the coins, the coins easily move, and the coins cannot be ejected due to the biting of the coins. In addition, since the surface of the rotor and the rotor guide are provided with good wear resistance, generation of resin powder due to contact with coins can be reduced. Furthermore, since the rotor itself is made of synthetic resin, it is lightweight and has a small moment of inertia,
The load on the drive motor is reduced. And
Compared with the manufacture of a conventional metal rotor or rotor guide, a rotor or a rotor guide having a small surface friction coefficient and wear resistance can be manufactured at low cost.

Similarly, when the dispensing passage is made of a synthetic resin material having abrasion resistance and a small surface friction coefficient, the generation of resin powder due to contact with coins can be suppressed. . Then, compared to the conventional manufacturing of the metal dispensing passage, a dispensing passage having a small surface friction coefficient and abrasion resistance can be manufactured at low cost.

Further, by providing a dust removing hole in the rotor guide of the coin dispensing section, in addition to reducing the weight of the rotor guide described above, minute dust adhering to coins and the like is utilized by centrifugal force. Then, the dust can be discharged to the outside through the dust removing hole, and the dust can be prevented from accumulating in the coin feeding portion. The load on the drive motor can be greatly reduced by reducing the weight of the lock release knob, and the diameter of the lock release knob can be increased without increasing the weight by using a synthetic resin molded product. Due to the large diameter, the rotation of the rotary shaft can be easily performed manually. Further, the use of a synthetic resin molded product makes it easy to form uneven portions having an anti-slip effect around the periphery, and by integrally forming the uneven portions, a knob for unlocking which can be more easily rotated. Can be obtained without increasing the manufacturing cost.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a coin discharging device.

FIG. 2 is an explanatory diagram showing a rotor and a rotor guide.

FIG. 3 is an explanatory view showing a payout passage.

FIG. 4 is an explanatory view showing a conventional unlocking knob.

FIG. 5 is an explanatory view showing an example in which a dust removal hole is provided in a rotor guide in the coin ejection device according to the present invention.

FIG. 6 is an explanatory diagram showing a lock release knob of the coin ejection device according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Coin discharger 4 ... Coin delivery part 5 ... Payout passage part 6 ... Coin introduction hole 7 ... Rotor 9 ... Rotor guide 11 ... Drive motor 12 ... Rotating shaft 13 ... Lock release knob 14 ... Dust removal hole 16 ... Thin part 17 ... uneven part

Claims (5)

[Claims] 1. A coin feeder comprising a disc-shaped rotor having a plurality of coin introduction holes rotatably disposed inside a ring-shaped rotor guide at a lower opening of a coin hopper. A dispensing passage portion is provided at a position facing the coin discharge port of the coin sending portion, and the coin fed into the coin hopper enters a coin introduction hole of a rotating rotor, and the rotation of the rotor causes the coin to move toward the dispensing passage portion. In the coin discharging device configured to feed coins, the rotor and the rotor guide of the coin feeding portion are made of a synthetic resin material having abrasion resistance and a small surface friction coefficient. Coin ejector. 2. A coin delivery section comprising a disc-shaped rotor having a plurality of coin introduction holes rotatably disposed inside a ring-shaped rotor guide at a lower opening of the coin hopper; A dispensing passage portion is provided at a position facing the coin discharge port of the coin sending portion, and the coin fed into the coin hopper enters a coin introduction hole of a rotating rotor, and the rotation of the rotor causes the coin to move toward the dispensing passage portion. A coin discharging device configured to discharge coins, wherein the payout passage portion is made of a synthetic resin material having wear resistance and a small surface friction coefficient. 3. A coin feeder in which a disc-shaped rotor having a plurality of coin introduction holes is rotatably disposed inside an annular rotor guide at a lower opening of the coin hopper; A dispensing passage portion is provided at a position facing the coin discharge port of the coin sending portion, and the coin fed into the coin hopper enters a coin introduction hole of a rotating rotor, and the rotation of the rotor causes the coin to move toward the dispensing passage portion. A coin discharging device configured to discharge coins, wherein a plurality of dust removal holes are opened in the rotor guide. 4. A lock for unlocking said lock by attaching a drive motor for rotating said rotor to a rotor for guiding coins fed from a coin hopper in a predetermined direction by rotation, and attaching a lock release knob to a rotation shaft of said drive motor. In the coin discharging device having a configuration in which the rotation shaft can be forcibly rotated by a rotation operation of a knob for lock, the knob for unlocking is thin and made of a synthetic resin material and provided in a large-diameter disk shape. Coin ejection device. 5. The coin ejection device according to claim 4, wherein a concave / convex portion for holding a finger is provided integrally with a periphery of the unlocking knob.