JPH0692478A - Lower feeding device for paper sheets - Google Patents

Abstract

(57) [Summary] [Object] The present invention constantly and downwardly delivers paper sheets without being affected by the storage amount of the paper sheets by making the pressing load constant when the paper sheets are downwardly delivered. Provided is a lower feeding device for paper sheets. According to the present invention, a feeding roller for feeding a paper sheet one by one in contact with a lower surface of a stored paper sheet at a lower portion of a paper sheet storage unit in which the paper sheets are vertically stacked and stored. A lower sheet feeding device including a sheet, comprising a pressing support mechanism for absorbing a sheet load for upwardly supporting the lower surface of the stored sheet around the feeding roller. Characterize.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lower feeding device for a paper sheet which is internally configured in an automatic transaction machine for handling paper sheets such as banknotes, and more particularly to a paper sheet having an improved lower feeding performance. Related to a lower feeding device.

[0002]

2. Description of the Related Art Generally, a lower feeding device for paper sheets is shown in FIG.
As shown in FIG. 3, a pressing plate 33 is arranged above the paper sheet storage unit 32 in which the paper sheets 31 are stacked in the vertical direction, and the pressing plate 33 is moved by the pressing motor M1 and the pressing force transmission mechanism 34. When the paper sheet 31 is pressed and urged downward, and the paper sheet 31 is urged downward, the paper sheet 1 is brought into contact with the lower surface of the paper sheet 31 by one sheet.
An auxiliary feeding roller 35 for feeding the sheets one by one is arranged, and further, a feed roller 36 and a gate roller 37 for limiting the feeding of one sheet are arranged in the feeding direction, and based on driving the feeding motor M2, the auxiliary feeding is carried out. Roller 35
The first clutch C1 and the second clutch C2 of the feed roller 36 are connected to feed the paper sheet 31, and this feeding is detected and confirmed by the feeding detection sensor S1.

Further, the pressing detection sensor S2 detects the tilt amount of the pressing detection lever 38 attached to the auxiliary feeding roller 35, and when the pressing is insufficient, the pressing motor M1 is drive-controlled,
The feeding pressure is raised to a proper level. 39 is a lever return spring.

Next, the lower feeding operation of the paper sheets will be described with reference to the flowchart of FIG. Now, when the lower feeding signal is input, the feeding motor M2 is driven based on this, and the pressure detection sensor S2 detects whether or not the feeding pressure is appropriate before the feeding, and the feeding pressure is insufficient. At this time, the pressing motor M1 is driven to increase the delivery pressure and adjust to an appropriate delivery pressure (steps n1 to n3).

When it is determined that the feeding pressure is appropriate, the clutches C1 and C2 are connected to each other, and the auxiliary feeding roller 35 is connected.
Then, the feeding force is transmitted to the feed roller 36 to feed one sheet (step n4).

When the feeding detection sensor S1 detects and confirms that one sheet has been fed, the auxiliary feeding roller 3
The clutch C1 of No. 5 is disengaged to complete the feeding of one sheet, and the next feeding is prepared (steps n5 to n6).

This feeding operation is repeatedly executed until the number of sheets required to be fed out is reached, and when the designated number of sheets is fed, the feeding operation is finished (step n7).

[0008]

By the way, this type of lower feeding device naturally applies a pushing-out pushing force by the weight of paper sheets when a large number of paper sheets are stored in the paper sheet storage section. In order to raise it, it can be delivered without applying delivery pressure, and the delivery pressure is applied only when the number of stored sheets is small.

However, if the storage amount of the paper sheets is too large, an excessive pressing force cannot be reduced, which makes it easy to cause unstable feeding such as continuous feeding and skew, and as a result, The efficiency of feeding out the paper sheets was low due to the increase in the number of collected paper sheets.

In view of this, the present invention makes it possible to constantly stably feed paper sheets downward without being affected by the storage amount of paper sheets, by making the pressing load applied at the time of feeding paper sheets downward. The purpose is to provide a lower feeding device of the same kind.

[0011]

SUMMARY OF THE INVENTION According to the present invention, a sheet of paper is placed in a lower portion of a sheet storage unit in which sheets are stacked in a vertical direction and is in contact with a lower surface of the stored sheets. A lower feeding device for a paper sheet, which is provided with a feeding roller for feeding each sheet, and presses and supports the lower surface of the stored paper sheet upwardly around the feeding roller to absorb the load of the paper sheet. It is characterized by having a mechanism.

[0012]

According to the present invention, when the number of sheets stored in the sheet storage section increases, a pressing support mechanism, other than the feeding roller below, receives the accumulated load of the sheets and moves upward to absorb the sheet load. Corresponding to the pressure support, the load on the sheet feeding roller is reduced, and the feeding operation is performed in a state where the contact resistance friction between the sheet feeding roller and the sheet is reduced.

[0013]

As a result, the contact pressure between the sheet to be delivered and the delivery roller supporting the lower surface of the sheet is naturally adjusted to the delivery pressing force suitable for feeding one sheet. As a result, stable feeding of one sheet can be obtained without being affected by the amount of paper sheets stored and by preventing unstable feeding such as continuous feeding and skew.
Further, since the collected paper sheets due to the feeding failure are reduced, the feeding efficiency of the paper sheets is surely improved.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. 1 and 2 show a lower feeding device 11 for banknotes. This lower feeding device 11 for banknotes corresponds to the bottom feeding device of FIG. Around the auxiliary feeding roller 12 is arranged a pressing support mechanism 13 for absorbing the banknote load, which presses and supports the lower surface of the banknote A upward.

The pressing support mechanism 13 includes a lower pressing plate 15 to which several pushing rollers 14 are attached, and the lower pressing plate 1.
5 for urging and supporting 5 upwardly, several push-up rollers 14 are arranged around the auxiliary feeding roller 12, and the height is substantially the same as that of the auxiliary feeding roller 12. The rollers 14 are arranged at positions so that the entire bottom surface of the bill A is uniformly supported by the rollers 14 ... As a result, the stacking load of the banknote A is distributed and applied on each of these rollers 14 ... 12 to prevent the stacking load from being concentrated on the auxiliary feeding roller 12.

In the figure, 17 is an upper pressing plate, 13 is a stacker 18 for allowing a large number of banknotes A to be stacked, and the stacker 18 has
Feed roller 19 and gate roller 2 for regulating single sheet feeding
0 is set.

Next, the lower payout processing operation of the lower payout device 11 of the bill thus constructed will be described. As shown in FIG. 1, when the number of stacked banknotes in the stacker 18 is large when the banknotes are being unrolled, the push-up rollers 14 of the pressing support mechanism 13 as well as the auxiliary payout rollers 12 are under the stacking load. ... are dispersed to absorb the load of the bill and reduce the load of the entire bill on the auxiliary feeding roller 12. For this reason, the frictional resistance between the auxiliary feeding roller 12 and the bill A, which come into feeding contact with each other, is reduced by a certain amount, and the feeding operation is performed in a pressing state suitable for the feeding pressure for feeding one sheet. The fed-out banknote A is fed and managed more reliably by the one-sheet feeding restricting portion.

On the contrary, as shown in FIG. 2, when the stacking amount of the bills A is small, the upper pressing plate 17 is pushed down to increase the stacking pressure to a dispensing pressure suitable for dispensing one sheet, and the dispensing operation is performed.

As described above, the contact pressure between the stored paper sheets and the feeding roller supporting the lower surface thereof is always the feeding pressure suitable for feeding one sheet, and is not affected by the storage amount of the paper sheets. It is possible to prevent the occurrence of continuous feeding, emptying, and skew, and to obtain stable one-sheet feeding. Furthermore, since the number of collected paper sheets due to the feeding failure is reduced, the paper sheet feeding efficiency is improved.

In the correspondence between the present invention and the configuration of the above-described embodiment, the lower feeding device for paper sheets of the present invention corresponds to the lower feeding device 11 for banknotes according to the embodiment. Corresponds to the auxiliary feeding roller 12, the paper sheet storage unit corresponds to the stacker 18, and the paper sheet corresponds to the banknote A. However, the present invention is limited to the configuration of the above-described embodiment. Not a thing.

[Brief description of drawings]

FIG. 1 is a side view of essential parts showing a multi-stored state of a banknote lower feeding device of the present invention.

FIG. 2 is a side view of the essential parts of the bill lowering device of the present invention showing a small storage state.

FIG. 3 is a schematic side view showing a conventional lower feeding device for paper sheets.

FIG. 4 is a flowchart showing a processing operation of a conventional lower sheet feeding device for paper sheets.

[Explanation of symbols]

 11 ... Lower payout device for bills 12 ... Auxiliary payout roller 13 ... Pressing support mechanism 14 ... Pushing up roller 18 ... Stacker A ... Paper currency

Claims (1)

[Claims] 1. A feeding roller, which is in contact with a lower surface of the stored paper sheets and which feeds the paper sheets one by one, is provided at a lower portion of the paper sheet storage unit in which the paper sheets are vertically stacked and stored. A lower sheet feeding device for a paper sheet, the paper sheet having a pressing support mechanism for absorbing a paper sheet load for pressing and supporting the lower surface of the stored paper sheet in the vicinity of the feeding roller. Lower feeding device.