JPH0696311A - Paper sheets taking-out device - Google Patents

Abstract

PURPOSE:To obtain a paper sheets taking-out device which accurately separates and conveys paper sheets such as stacked paper money at a high speed without multiple feeding, paper jamming, etc. CONSTITUTION:The paper sheets taking-out device which separates and conveys many stacked paper sheets 2 in order by a takeout roller 16 and is provided with a backup member 17 for imparting contact and a load on the takeout roller and paper sheets is provided with a guide part 20 which guides the backup member 17 so that the load placed by the backup device 17 is directed to the center of the takeout roller at the contact point (c) between the takeout roller 16 and paper sheets.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automated teller machine (ATM) and a cash dispenser (C) used in financial institutions.
The present invention relates to a paper sheet take-out device such as a paper money take-out device which is a part of the equipment constituting D).

[0002]

2. Description of the Related Art FIG. 7 is a cross-sectional view showing a schematic construction of a conventional bill take-out device, in which a paper stacking unit 3 for accommodating a large number of bills 2 in a vertically stacked state is provided on a machine frame 1. It is provided. The banknote take-out port 4 is provided on the lower end front surface of the banknote stacking unit 3.
Is provided below the bill outlet 4, and a roller 5 having a layer 5a formed of a friction member, for example, a rubber layer 5 on a part or all of the outer periphery thereof is arranged below the bill taking port 4, and above the roller 5. Rotates in the opposite direction to the roller 5 in order to separate the second and subsequent banknotes from the first banknote. The entire outer circumference is the friction member 6a.
For example, a roller 6 formed of a rubber member is provided oppositely.

On the front side (the left side in the figure) of the pair of rollers 5 and 6, there is provided a conveyor belt 7 for conveying the bills sent from the rollers 5 and 6 to a predetermined position. The conveyor belt 7 is rotated by a drive motor (not shown), and rollers 10, 10 are provided above the pulleys 8, 9 around which the conveyor belt 7 is wound.
11 are provided opposite to each other.

By the way, the front wall of the banknote stacking unit 3 constitutes a front guide plate 12 for guiding the front edge of the banknote 2. The front guide plate 12 facilitates separating the banknotes 2 from each other and taking them out. The upper part is inclined forward with respect to the vertical plane so that it is located forward. Further, the lower surface guide plate 13 that constitutes the bottom wall of the banknote stacking unit 3 is also inclined forward and downward with respect to the horizontal plane.

An opening 15 is formed in the lower guide plate 13, and a take-out roller 16 is provided below the opening 15.
And the upper opening 1 of the take-out roller 16 is provided.
Part of the banknotes is projected into the banknote stacking section 3 through the bank 5, and comes into contact with the bottom surface of the banknotes stored in the banknote stacking section 3. The take-out roller 16 is entirely covered with a friction member 16a such as rubber.

On the other hand, a backup member 17 is placed on the banknotes stored in the banknote stacking unit 3 in a stacked state so that the bottom surface of the banknote is in sufficient contact with the roller 16.

When the rollers 16, 5, 6 and the conveyor belt 7 are rotationally driven, first, the lowermost banknote is taken out between the rollers 5 and 6 by the frictional force of the roller 16 by the rotation of the roller 16. Further, it is delivered to the conveyor belt 7 by the roller 5. In this case, the roller 6 rotates in the opposite direction to the roller 5 and separates the second and subsequent banknotes from the first banknote (the lowermost banknote).

The banknotes that have reached the conveyor belt 7 are sequentially pressed against the conveyor belt 7 by the rollers 10 and 11, and are conveyed to the next processing portion by the conveyor belt 7.

By the way, the front guide plate 1 of the banknote stacking unit 3
As shown in FIG. 8, the vertical slit 2 is provided in the slit 2, and the backup member 1 is provided on the slit 18.
The arm 17a protruding from 7 is engaged, and the slit 18 guides the backup member 17. A guide rail is provided instead of the slit 18,
The backup member 17 is moved in the vertical direction along the guide rail, and a tension spring is provided on the guide rail so that the backup member is pressed against the bill by the tension spring.

[0010]

The point is how the bill take-out section can separate and convey the bills at high speed and accurately one by one, and the force applied by the rollers to the bills is kept constant to prevent slipping. It is necessary. For that purpose, it is necessary to maintain good contact between the bill and the take-out roller 16 by the backup member 17, depending on how to apply the backup member 17.

However, in the conventional device as described above, since the moving direction of the backup member is simply defined in the vertical direction, the position of the force applied by the backup member changes depending on the number of bills. I have a problem.

That is, as shown in FIG. 7, assuming that the center of gravity of the backup member 17 is a point A ₁ when the number of bills is large, a load is applied to the point B ₁ at the bottom of the bill, and the number of bills is small. so that the load is applied to the point B ₂ at the lowermost portion when the the point a ₂ centroid of backup member 17 when the. In such a case, the backup member 10 exerts a force between the lower surface guide plate 14 and the bill, and a sliding portion is generated in the front, which makes it difficult to convey the frictional force between the take-out roller 16 and the bill. However, there are problems such as double feed or paper jam. Further, if the direction in which the load is applied is not constant, the posture of the accumulated banknotes may change.

In view of the above points, the present invention has an object to obtain a paper sheet take-out device capable of accurately separating and conveying paper sheets such as stacked banknotes at high speed.

[0014]

According to the present invention, a large number of paper sheets are stacked, and the stacked paper sheets are sequentially separated and conveyed by a take-out roller, and contact is made between the take-out roller and the paper sheet. And a sheet take-out device provided with a backup member for giving a load, the guide for guiding the backup member so that the load by the backup member is directed toward the center of the take-out roller at the contact point between the take-out roller and the sheet. It is characterized by having a section.

Further, in the paper sheet take-out device constructed as described above, the take-out is performed so that the center of gravity of the further laminated paper sheets is always on the paper take-out port side from the contact point between the take-out roller and the paper sheet. It is characterized in that the position of the roller and the mounting angle of the guide plate for holding the laminated paper sheets are set.

[0016]

When the stacked paper sheets are taken out by the rotation of the take-out roller, the load by the backup member is regulated so as to be directed in a predetermined direction, so that the direction of the force applied to the take-out roller becomes constant and the stacked paper sheets The posture is less likely to change, and the frictional force can be efficiently applied at the contact point between the take-out roller and the sheet.

[0017]

Embodiments of the present invention will be described below with reference to the accompanying drawings. In the figure, the same parts as those in FIG. 7 are designated by the same reference numerals, and detailed description thereof will be omitted.

In FIG. 1, a large number of banknotes are accommodated in the banknote stacking unit 3 in a vertically stacked state, and the front guide plate 12 for guiding the front edge of the banknote is a lower surface guide plate 14. Is 90 degrees or less, and the lower surface guide plate 14 is slightly inclined forward and downward so that the stacked banknotes can be easily separated and taken out, and the front surface guide plate 12 is slightly bent forward with respect to the vertical surface. Is inclined to.

On the other hand, the take-out roller 1 is provided on both left and right side wall portions (side wall portions orthogonal to the front guide plate 12) of the bill stacking unit 3.
At a contact point between the bill 6 and the bill, a slit-shaped guide 20 parallel to the axis of the take-out roller is formed, and the arm 1 projecting left and right from the backup member 17 is formed.
The guide portions of the backup member 17 are configured by engaging the corresponding guides 7a with each other.

FIG. 2 is a diagram showing another embodiment of the present invention, in which the left and right side wall portions of the banknote stacking unit 3 have an axis line directed toward the center of the takeout roller at the contact point between the takeout roller 16 and the bill. A rail 21 extending in parallel with the backup member 17 is provided, and rollers 22 provided on the left and right sides of the backup member 17 are engaged with the rail 21 to form a guide portion of the backup member 17.

However, in both embodiments, as shown in FIG. 3, only the component force f of the weight F of the backup member 17 in the direction along the guide 20 or the rail 21 is taken out.
6, the direction in which this force is applied is always constant because the backup member 17 descends along the guide 20 or the rail 21 as the bill 2 decreases. Therefore, the frictional force is efficiently applied at the contact point between the take-out roll and the bill regardless of the amount of the bill 2.

A spring or the like may be connected to the arm 17a of the backup member 17 or the roller 22 to control the load of the backup member 17, and the guide 20 or the rail 2 may be used.
1 may be formed on the front guide plate 12 side. It is preferable that the friction between the guide 20 or the rail 21 and the arm 17a or the like be as small as possible.
It is advisable to manufacture the 0, the rail 21, the arm 17a, or the like from polytetrafluoroethylene (PTFE), high-rigidity plastic, or the like.

On the other hand, as for the position of the take-out roller 16, the position of the take-out roller 16 and the front guide plate 12 or the lower surface guide are set so that the center of gravity of the stacked banknotes is always in front of the contact point C between the take-out roller 16 and the banknote 2. The mounting angle of the plate 14 is set. Therefore, the posture of the banknotes stacked in the vertical direction is directed toward the take-out port side and does not change, and the occurrence of paper jam of the banknotes is prevented.

The take-out roller 16 conveys the bill 2 to the rollers 5 and 6 by the frictional force of the rubber roller.
The take-out roller 16 has a shape, hardness,
The take-out speed etc. greatly depends on the material. Generally, a rubber roller having a larger friction coefficient can take out a bill at a higher speed. Experiments have revealed that the friction coefficient decreases as the load applied to the roller 16 increases.

It is also empirically known that paper dust adheres to the roller to reduce the friction coefficient. Therefore, it is preferable that the take-out roller has a large friction coefficient and measures against paper dust. FIG. 4 is a view showing the outer appearance of a conventional take-out roller, and the roller has a comb-teeth shape as a measure against paper dust. However, in the case of this comb-tooth shape, the rigidity of the roller is low, the roller is crushed and the coefficient of friction is small due to the tooth portion being the rubber layer, and it becomes difficult to transfer the bill at high speed.

FIG. 5 is a diagram showing an embodiment of the roller 16 having high rigidity and measures against paper dust, in which the convex portion 31 of the comb tooth is wider than the concave portion 32 in the circumferential direction. In addition, when the comb tooth concave portion is located directly below the banknote, there are disadvantages that the portion in contact with the banknote is reduced and it is difficult to predict the amount of movement of the banknote. Therefore, as a countermeasure, for example, FIG.
As shown in (a), two or more pairs of comb-teeth rollers are arranged adjacent to each other, and the cycles of the concave portion 32 and the convex portion 31 are shifted so that the convex portion 31 of the take-out roller is always in contact with the contact point with the bill. There is. Further, as shown in FIG. 3B, the concave portion 32 and the convex portion 3 are arranged so that the convex portion of the take-out roller is always in contact with the bill.
1 may be formed obliquely, or as shown in (c) and (d) of the figure, the unevenness formed on the roller may have a shape having high rigidity and a high friction coefficient. Further, in FIG. 8E, instead of forming the concave portion and the convex portion on the roller, two or more sets of drum-shaped rollers are provided adjacent to each other to prevent paper dust and have high rigidity. In this case, however, it is not necessary to form the groove or the unevenness, so that the manufacturing cost is low. Further, FIG. 6 (f) shows a frictional force formed by forming a large number of minute protrusions on the metal. As a result of an experiment, this roller has a friction coefficient of 70 to 80% of that of a conventional rubber roller, but it is not deformed by a load, the friction coefficient is less decreased with time as compared with the rubber roller, and the friction is lower than that of the rubber roller. There are advantages such as short life and long life.

In the above embodiment, the bills are vertically taken out and the lowermost bills are taken out sequentially. However, from the state where the bills are stacked laterally (horizontally), It can also be applied to the one in which the frontmost bills are sequentially taken out.

In the above embodiment, the bill take-out device has been described, but the present invention is not limited to bills and can be applied to a device that sequentially separates and conveys paper sheets from stacked paper sheets such as plain paper and specifications.

[0029]

As described above, according to the present invention, the guide portion of the backup member is provided so that the load by the backup member is directed toward the center of the take-out roller at the contact point between the take-out roller and the sheet. Efficient and stable frictional force can be applied between the take-out roller and the paper sheet, and it is possible to prevent the posture change of the paper sheet, double feed and paper jam, and to stably and accurately take out and convey the paper sheet. be able to.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of a paper sheet take-out device of the present invention.

FIG. 2 is a sectional view showing another embodiment of the present invention.

FIG. 3 is an operation explanatory view of the present invention.

FIG. 4 is a view showing the outer appearance of a conventional take-out roller.

FIG. 5 is a perspective view showing an embodiment of a take-out roller used in the present invention.

6A to 6F are views showing an embodiment of a take-out roller.

FIG. 7 is a cross-sectional view showing an embodiment of a conventional banknote take-out device.

FIG. 8 is a front view of a stacking unit of a conventional bill takeout device.

[Explanation of symbols]

 2 banknotes 3 banknote stacking section 4 banknote take-out port 5, 6, 10, 11 roller 12 front guide plate 15 lower surface guide plate 16 take-out roller 17 backup member 17a arm 20 guide 21 rail

Claims (2)

[Claims] 1. A stack of a large number of paper sheets, the stacked paper sheets are sequentially separated and conveyed by a take-out roller, and a backup member is provided between the take-out roller and the paper sheets to apply a contact and a load. In the paper sheet take-out device,
A sheet take-out device comprising a guide portion for guiding the backup member so that the load of the backup member is directed toward the center of the take-out roller at a contact point between the take-out roller and the sheet. 2. A guide plate for holding the position of the take-out roller and the laminated paper sheet such that the center of gravity of the laminated paper sheet is closer to the take-out port side of the paper sheet than the contact point between the take-out roller and the paper sheet. 2. The paper sheet take-out device according to claim 1, wherein the attachment angle is set.