JP2001225978A - Paper sheet pay out device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To securely pay out paper sheets one by one. SOLUTION: This paper sheet payout device is constituted by providing a roller which sandwiches stacked sheets in its intermediate part and rotates on one side providing a picking roller giving a pay out force to the sheets on the other side. The roller is held at a predetermined fixed torque in the direction opposite to the direction of pay out of the sheets.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic ticket vending machine and an automatic ticket vending machine.
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper sheet feeding device incorporated in a device for handling paper sheets such as M, and more particularly to a device capable of accurately feeding only one sheet from a plurality of stacked sheets.

[0002]

2. Description of the Related Art Conventionally, in an apparatus for handling paper sheets such as an automatic ticket vending machine or an ATM, for example, a predetermined number of paper sheets (banknotes) are fed out one by one from paper sheets (banknotes) stacked and inserted into a bill insertion slot. May need to be transported to a location.

[0003] As described above, in the conventional sheet feeding device for feeding one sheet from the stacked sheets, a picking roller (feeding roller) is positioned on the upper surface of the stacked sheets. In addition, the picking roller is driven to rotate.

[0004]

However, since the above-mentioned conventional sheet feeding device is configured to be positioned on the upper surface of the stacked sheets by the picking roller and to rotate the picking roller, the picking roller is worn out. There is a drawback that double feed and feeding failure are likely to occur depending on the state or the difference in frictional force between paper sheets.

The present invention has been made in order to solve the above-mentioned drawbacks, and an object of the present invention is to provide a paper sheet capable of reliably feeding out paper sheets one by one from stacked paper sheets. An object of the present invention is to provide a similar feeding device.

[0006]

In order to achieve the above object, the paper sheet feeding device according to the present invention is provided with a rotating roller provided on one side of the paper sheet sandwiching the stacked paper sheets in the middle. A sheet feeding device provided with a picking roller for applying a feeding force to the sheet on the other side, wherein the roller is held at a predetermined constant torque in a direction opposite to a direction in which the sheet is fed. It is characterized by having.
Further, the predetermined constant torque is generated by a motor driven by a predetermined constant current to rotate the roller. The predetermined constant torque is adjusted according to environmental conditions such as ambient temperature or humidity.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration diagram of a paper sheet feeding device according to an embodiment.

In FIG. 1, P is a picking roller (feeding roller), which is located on the upper surface in the feeding direction (the direction of the thick arrow in FIG. 1) of the paper sheets A inserted in a stacked state into the insertion slot S. are doing. As shown partially enlarged in FIG. 1A, the surface of the picking roller P is provided with grooves parallel to the direction of the rotation axis, and is formed with irregularities. The picking roller P is configured to be rotatable by a motor (not shown) so as to apply a feeding force to the paper sheet A (see an arrow in FIG. 1).

In FIG. 1, R is a roller, which is provided at a position facing the picking roller P with the stacked sheets A in the middle. The roller R and / or the picking roller P can be moved toward the other roller (R, P) so that the roller R or the picking roller P or both can follow the lamination thickness of the sheets.

In FIG. 1, M is a motor, which is configured to be driven to rotate by a power source E. The motor M can be a DC motor or an AC motor, but is preferably a DC motor in order to accurately adjust the torque of the roller R as described later.

The motor M is connected to the roller R by a belt V. When the motor M is driven by the constant current control circuit 1 at a predetermined constant current, the rotation direction of the picking roller P with respect to the roller R is changed. It is determined to rotate in the same direction as (the arrow in FIG. 1) (see the arrow in FIG. 1).
The setting device 2 is used to set the current of the constant current control circuit 1.

In the paper sheet feeding apparatus having the above-described structure, the picking roller P and the roller R are started to rotate in order to feed the stacked paper sheets a one by one (see arrows in FIG. 1). reference). At this time, the frictional force of the roller R is adjusted so that the picking roller P draws out only the paper sheet A in contact with the picking roller P. That is, when the frictional force of the roller R is weak, the rotational driving force of the roller R is rotated as indicated by the arrow.

When the number of stacked sheets decreases, for example, when only one sheet A exists between the picking roller P and the roller R, the frictional force of the roller R increases, The rotational force of the picking roller P wins and is rotated as indicated by the arrow, that is, in the direction opposite to the rotational direction of the picking roller P.

As described above, the roller R is set so as to rotate with a predetermined constant torque. Therefore, the frictional force generated when the paper sheet A is fed out causes the roller R to move in the same direction as the picking roller P or in the opposite direction. The picking roller P rotates in the direction, and can play a role of feeding out the sheets A one by one.

The current value set by the constant current control circuit 1 is:
It can be set through the setting device 2 by experience. However, since the above-mentioned frictional force is affected by the surrounding temperature and humidity, the environment condition is detected and the setting device 2 is automatically or manually operated. can do.

In the above example, the picking roller P
Is positioned on the upper surface of the paper sheet A and the roller R is positioned on the lower surface thereof, but this may be reversed. Further, in the above-described example, the example in which the paper sheets are stacked and inserted into the insertion slot is shown, but a case where the paper sheets stacked in the stacker are fed out one by one may be used. Further, the paper sheets are not limited to banknotes, but may be cards. Furthermore, although the torque of the roller is adjusted by the motor M, the adjustment may be performed mechanically.

[0017]

In the paper sheet feeding apparatus according to the present invention, the rollers are held at a predetermined constant torque in the direction opposite to the paper sheet feeding direction, so that the paper sheets are reliably fed one by one. Can be put out. Further, when the predetermined constant torque is performed by a motor driven by the roller with a predetermined constant current, the torque of the roller can be easily adjusted. Then, when the predetermined constant torque is adjusted according to the environmental conditions such as the ambient temperature or humidity, it is possible to more reliably feed out one sheet.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a paper sheet feeding device according to an embodiment of the present invention.

[Explanation of symbols]

 1 constant current control circuit 2 setting device P picking roller (feeding roller) R roller M motor V belt S insertion slot a sheet

Claims (3)

[Claims] 1. A paper sheet feeding device comprising: a rotating roller provided on one side sandwiching stacked sheets in the middle; and a picking roller for applying a feeding force to the paper sheet on the other side. The paper sheet feeding device, wherein the roller is held at a predetermined constant torque in a direction opposite to a direction in which the sheet is fed. 2. The sheet feeding device according to claim 1, wherein the predetermined constant torque is generated by a motor that drives the rotational force of the roller with a predetermined constant current. . 3. The paper sheet feeding device according to claim 1, wherein the predetermined constant torque is adjusted according to an environmental condition such as ambient temperature or humidity.