JPS632937Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Field of the invention This invention is, for example, in a vending machine, when there are no change coins in the change hopper that releases change, the coins stored in the coin storage part are released. This invention relates to a coin replenishing device that discharges coins from an outlet and replenishes a change hopper with coins.

(b) Background of the invention Conventionally, the above-mentioned coin replenishing device was developed by
There is a device disclosed in Publication No.-2198.

In this conventional device, a shutter that swings around a shaft is provided at the change delivery port of the change delivery conveyor, and the shutter is configured to be closed by the biasing force of a spring and opened by the driving force of a solenoid. ing.

According to this conventional device, when change is not being released, the shutter is closed by the biasing force of the spring, but when vibration is transmitted from the main body side, this vibration creates a gap in the shutter, and at the same time, as mentioned above, When the coins at the end of the change delivery conveyor fall toward the shutter due to the vibration, the dropped coins fall downward through the gap in the shutter, causing the problem that coins are unexpectedly replenished.

In order to prevent this natural fall, it is possible to set the biasing force of the spring mentioned above to a large value so that the shutter does not open unexpectedly due to vibrations, but in this case, the driving force of the solenoid that opens the shutter also increases. This has the problem of increasing the size of the device and increasing costs.It is also conceivable to provide a lock mechanism to keep the shutter closed, but this also has the problem of increasing costs.

Another conventional device is a hopper gate disclosed in Japanese Unexamined Patent Publication No. 133665/1982, but the device is large and costly, and cannot be used as a coin replenishing device.

(c) Purpose of the invention This invention is a mechanism that maintains the shutter closed by a unique structure that closes the shutter with a large moment when a coin is placed on the shutter provided at the coin ejection opening. , a coin replenishing device which does not require the above-mentioned spring or locking mechanism, and which can firmly maintain the closed state of the shutter the more coins fall into the shutter, and reliably prevent coins from spontaneously ejecting. For the purpose of providing.

(d) Summary of the invention This invention provides a shutter whose middle part is swingably supported by a spindle at the coin ejection opening, and a moment is always generated at one end of the shutter by its own weight alone. , when a coin is placed, the coin's own weight generates a moment larger than the above moment to close the discharge port, forming a coin receiving part, and a coin receiving part is provided at the other end of the shutter with respect to the shutter. Add a moment opposite to the above moment,
The coin replenishing device is characterized by having a shutter drive device that opens the ejection port.

(e) Effects of the invention According to this invention, when a coin falls toward the discharge port, it is caught by the coin receiving part of the shutter, and the weight of the falling coin acts as a moment in the closing direction of the shutter. The larger moment causes the shutter to remain closed, thereby reliably preventing the coin from spontaneously ejecting.

Furthermore, since the shutter is maintained in the closed state by the weight of the shutter and the weight of the coins due to the unique structure of the coin receiving section, there is no need for, for example, a spring or lock mechanism to keep the shutter closed. , the structure can be simplified and miniaturized, and costs can be reduced.

(F) Embodiment of the invention An embodiment of the invention will be described below in detail based on the drawings.

The drawings show a coin replenishing device that conveys coins stored in a coin storage section by a belt conveyor and discharges them from a discharge port. In FIGS. It is formed by a rear wall plate 3 and side wall plates 4, 4, and the upper and lower parts are open.

A belt conveyor 5, which is shown as an example of a conveyance means, is located at a slight slant in the lower part of the coin storage section 1, and in the coin storage section 1, coins are prevented from moving laterally against the above-mentioned peripheral wall. It is regulated and stored in a pile on the conveyance surface 6 of the belt conveyor 5.

Also, the coin conveying direction X of the belt conveyor 5
The rear part is closed by the rear wall plate, and the front part has an opening 7 between it and the front wall plate 2.

The above-mentioned belt conveyor 5 is formed by a conveyor belt 8 stretched around pulleys 9a, 9b, one pulley 9a being rotatably attached to the side wall plates 4, 4 via a shaft 10, and a driving chain 11. It is connected to the motor 12 via.

The rotation of the motor 12 is controlled by the belt conveyor 5.
is set to be driven in the coin transport direction X.

The other pulley 9b is rotatably attached to a shaft 13, and the shaft 13 is connected to a long groove 1 formed in the side wall plates 4, 4.
4 so as to be slidable.

This shaft 13 is engaged with the tip of a position adjustment screw 15, and this position adjustment screw 15 is threadedly engaged with a threaded portion 17 of a fixing member 16, and a lock nut 18 is engaged with the shaft 13.
It can be fixed at an appropriate position.

The position of the pulley 9b can be adjusted using the position adjustment screw 15, and the tension of the conveyor belt 8 can be set freely.

Note that side guides 19, 19 are fixed to side wall plates 4, 4 on both sides of the conveying surface 6 of the belt conveyor 5.

These side guides 19, 19 allow the coin to
This prevents the belt conveyor 5 from entering the gap between the belt conveyor 5 and the side wall plates 4, and blocking the conveyance operation of the belt conveyor 5.

Further, the distance between the side guides 19, 19 and the conveying surface 6 increases from the rear to the front in the conveying direction It is set to prevent the operation from being blocked.

A discharge port 20 is formed below the end of the belt conveyor 5 in the conveyance direction X to discharge coins taken out from the coin storage section 1 by the belt conveyor 5.

Note that an appropriate change hopper is located at the bottom of this outlet 20.

A U-shaped shutter 21 is vertically located at the discharge port 20 so as to be openable and closable. The upper part of the shutter 21 is swingably supported on a support shaft 22, and a coin receiving portion 21a is formed at a position corresponding to the discharge port 20.

The vertical line passing through the center of the support shaft 22 is the discharge port 20.
The shaft is mounted on the side wall plates 4, 4 at a position where it passes outside of the wall.

With the above-mentioned configuration, when the shutter 21 is in a free state, the center of gravity of the shutter 21 tends to move on the vertical line passing through the above-mentioned support shaft 22 in order to maintain a stable posture, and the center of gravity of the shutter 21 tends to move in the direction of closing the discharge port 20. moment, and is set to close the discharge port 20.

When the shutter 21 closes the discharge port 20, the belt conveyor 5 may
A coin located at the upper end in the transport direction X may fall and be placed on the coin receiving section 21a.

At this time, the moment of the shutter 21 in the direction of closing the discharge port 20 increases due to the increase in mass, and the shutter 21 closes the discharge port 20 with a larger moment in the closing direction than before.

A solenoid 23 serving as a drive device for the shutter 21 is provided opposite to the upper end 21b of the shutter 21, and when operated, this solenoid 23 comes into contact with the upper end 21b to move the shutter 21 from the discharge port 20. The action is set to force you to leave.

In addition, a coin supply cassette 24 is set in the upper part of the above-mentioned coin storage section 1, and can be set therein.
The coins in the coin storage section 1 are stored at any time in the coin supply cassette 24.
It is supplemented by more.

The operation of the coin replenishing device configured as described above will be described below.

When the change coins in the appropriate change hopper that discharges change run out, the belt conveyor 5 of the coin replenishing device is driven and the solenoid 23 is activated to replenish the change coins into the change hopper.
In order to turn on the shutter 2 and open the discharge port 20,
1 is driven.

Then, the belt conveyor 5 takes out the coins stored in the coin storage section 1 through the opening 7, discharges them from the discharge port 20, and supplies them to an appropriate change hopper located at the lower part of the discharge port 20.

At this time, the side guides 19 prevent the coins being conveyed from falling into the gap between the belt conveyor 5 and the side wall plate 4, and the belt conveyor 5 is not stopped.

When the change hopper is replenished with a predetermined amount of change coins, the belt conveyor 5 is stopped, the solenoid 23 is also turned off, the shutter 21 becomes free, and its own weight closes the discharge port 20. do.

When the shutter 21 closes the discharge port 20, the coins located at the front end of the belt conveyor 5 in the conveying direction
Even if the coin falls to zero, due to the mutual relationship between the shutter 21 and its support shaft 22, the shutter 21 continues to close the ejection port 20 with a large moment due to the added mass of the coin, and the coin is not ejected. The coin is received by the coin receiving portion 21a, and spontaneous release of the coin is reliably prevented.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention, with FIG. 1 being a side sectional view of the coin replenishing device, and FIG. 2 being a front view. 1... Coin storage section, 5... Belt conveyor, 2
0...Discharge port, 21...Shutter, 21a...Coin receiver, 23...Solenoid.

Claims (1)

[Scope of Claim for Utility Model Registration] A device that is provided with a conveyance means for conveying coins to a discharge port at the bottom of a coin storage section that stores coins, the device having an intermediate portion swingable by a pivot at the discharge port. A freely pivoted shutter is provided, and at one end of the shutter, a moment is always generated only by its own weight, and when a coin is placed, a moment larger than the above moment is generated due to the weight of the coin, and a moment is generated at one end of the shutter. forming a coin receiving portion for closing the shutter, and applying a moment opposite to the moment to the shutter to the other end of the shutter;
A coin replenishing device equipped with a shutter drive device that opens the ejection port.