JPS6133461A - Paper sheet discharge mechanism - Google Patents

Abstract

PURPOSE:To prevent adhesion of paper sheet to the discharge port due to charging thus to eliminate curling or jamming by arranging a paper sheet shake down member operatable in the direction of self-weight falling of paper sheet at the discharge port of paper sheet. CONSTITUTION:The paper sheet 9 is discharged from a roller 8 into a stacker 4 while lifting the shake down board 15 around the upper fulcrum 14. The paper sheet 9 will try to adhere to the endface of stacker 4 through electrostatic attraction 16, but separated forcefully through the self-weight of said board 15 and stacked in the stacker 4. The paper sheet 9 stacked in the stacker 4 is blocked from self-weight falling because of the electrostatic repellency of the stacked paper sheet 6 and collapsed forcefully through the self-weight of said board 15 to be stacked in the stacker 4. Consequently, adhesion of the paper sheet 9 to the discharge port in the stacker can be prevented.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a paper sheet discharging mechanism that has a paper sheet discharging function, and suppresses the adhesion of charged banknotes to the inside of the discharge port and the repulsion of banknotes against each other due to static electricity. The present invention relates to a sheet ejecting mechanism suitable for various cases.

[Background of the invention]

The overall configuration of a conventional banknote discharging mechanism is shown in FIG. 1, and the details of the stacker section are shown in FIG. 2. Patent No. 58-44879 The banknotes 2 in the reference cassette 1 are fed out one by one by the separation mechanism 3, and after being deposited in a designated number on the stacker 4, they are supplied to the user. When multiple bills are sent at the same time due to a mistake in the separating mechanism 8, the detector 5 is activated and the stacker 4 receives the banknotes 6.
are collected all at once into the collection box 7.

The banknotes 9 discharged to the stacker 4 by the feed roller 28 hit the bottom surface 10b of the panel 10 at the discharge speed of the feed roller 8, and then fall toward the stacked banknotes 6 due to their own weight. When a banknote comes into contact with an object to be transported during transport, static electricity may be generated depending on the degree of dryness of the banknote or environmental conditions (temperature, humidity), and the banknote itself may become electrically charged. When this charged banknote is discharged into the stacker 4, the banknote 9 is transferred to the wall surface 4a of the stacker.
Since the paper or banknotes attached to the bank are charged with the same polarity, a phenomenon occurs in which the banknotes repel each other and prevent their own weight from falling.

When this phenomenon occurs, the next banknote transport path 11 cannot be secured, and the banknotes collide with each other, causing curling. If subsequent bills are successively released into this curled portion, a jam occurs.

Further, as a conventional example, there is Japanese Patent Publication No. 58-4892. This is because the bill guiding device 7 has the effect of guiding the tip of the bill ejected into the ejection port in the stacker stacking direction. It does not adhere to the conveyance guide surface and accumulate on the stacker (does not fall under its own weight). In this state, even if the flapper falls under its own weight, it does not have the effect of peeling off the central part of the banknote, and there is a risk that the flapper will collide with the next banknote, causing the banknote to curl or jam.

[Purpose of the invention]

An object of the present invention is to reduce curling and jamming phenomena caused by electrostatically charged paper sheets adhering to a discharge port.

[Summary of the invention]

A paper leaf knocking member that can move in the direction in which paper leaves fall under their own weight is installed within the discharge port.

The charged paper sheet enters the discharge port with the brush-off member lifted around the rotational fulcrum. The paper leaf that has entered the outlet tries to stick to the vicinity of the outlet due to electrostatic attraction, but
The area of the brushed leaves is smaller than the area near the outlet, and because it is further away from the side of the outlet, the electrostatic attraction is small. In this state, the brushed-off leaves that were lifted when the paper sheets entered the stack fall under their own weight, and the paper sheets that are about to stick can be forcibly stacked by electrostatic attraction.

Furthermore, the electrostatic repulsive force between the stacked sheets can be resolved by forcibly pressing them against each other using the weight of the scraping plate when it falls.

Since this brushing member is constructed so as to protrude into the ejection port when ejecting banknotes, there is no secondary problem during collection, there is no discomfort to the user, and there is no need to install a new drive source. mechanism can be realized.

[Embodiments of the invention]

An embodiment of the present invention will be described below. Figure 3 shows details of the outlet.

The panel 10 is arranged flush with the body 12 and has an inner surface 10b.
constitutes the bottom surface of the stacker 4 and is rotatable on a lower fulcrum 13. The stacker 4 is installed obliquely with respect to a horizontal plane, and is rotatable around an upper fulcrum 14 with respect to the panel 10. The wipe-off plate 15 is rotatably held on the upper fulcrum 14 of the stacker 4, and its end face 15b is configured so as not to protrude beyond the end face 4a when the stacker 4 performs a collecting operation.

Further, the end surface 15b of the wipe-off plate 15 is configured so as not to protrude beyond the stacker end surface 4a even when the stacker 4 is tilted toward the user about the lower support 13. As shown in FIG. 4, the wipe-off plate 15 narrows the width of the end surface 15b that contacts the banknotes to minimize the effect of electrostatic attraction.
That's how it is. The number of dispensing plates 15 to be installed is determined depending on the charging voltage conditions.

Next, the operation of this embodiment will be explained.

FIG. 5 is a diagram showing the operation of the knock-off plate against the electrostatic attraction of banknotes.

The banknotes 9 discharged by the rollers 8 are discharged into the stacker 4 while lifting the knock-off plate 15 about the upper fulcrum 14 as shown in FIG. 5(a).

The ejected banknotes 9 tend to adhere to the end surface 4a of the stacker 4 due to static frost on the banknotes and the attractive force 16 (see FIG. 5(b)).
) are forcibly separated by the falling weight of the lifted scraping plate 15 and deposited in the stacker 4 (FIG. 5(C)).

FIG. 6 is a diagram showing the operation of the knock-off plate against electrostatic repulsion between banknotes.

The banknotes 9 discharged into the stacker 4 are prevented from falling under their own weight by the electrostatic repulsive force 17 of the stacked banknotes 6 (the state shown in FIG. 6(b)); The falling particles are forcibly crushed by their own weight and deposited in the stacker 4 (FIG. 6(C)).

Since the structure utilizes the weight of the knock-off plate 15, no other additional mechanism is required.

In the example shown in FIG.
Install and configure. Grass 918 also wipes off board 15
18
The banknotes are forcibly stacked in the stacker 4 by their own weight. <
918 is the end face 15 of the knock-off plate 15, which is the area that touches the bill.
Since the surface area b is smaller than the surface area b, it is less susceptible to the action of electrostatic attraction, and since the holder 18 lifted by the banknote assumes a whip-like posture when falling under its own weight, it is highly effective in brushing off the banknote.

In the example shown in FIG. 9, a knock-off plate 15 and a link 18 are combined, and the link 18 is suspended from near the center of the feed roller 8. If the pressure on the band becomes very high,
The banknotes come to adhere to the upper part of the end surface 4a of the stacker 4. When such a situation occurs, the filter 18 suspended from the vicinity of the feed roller 8 has a large peeling effect.

FIG. 10 shows an embodiment in which a knock-off plate 15 is attached to the banknote conveyance guide surface. Banknotes 2 transported by the feed roller 19
0 is guided by the banknote guide 21 and deposited in the stacker 22. The knock-off plate 15 is inside the banknote conveyance! It is rotatably supported by a shaft 24 so as to protrude beyond 28. The banknote guide 21 is rotatably held by a shaft 26 inside the shutter 25, and is configured to move one step along with the seven yoke 25 and be pushed up into the shutter 25 when the shutter 25 is opened. The charged banknotes adhering to the conveyance guide surface 23 are peeled off by the own weight of the wipe-off plate 15.

FIG. 7 is a graph showing the curl and jam rate of banknotes. If a banknote is discharged in an environment where the ambient humidity is low and the temperature inside the device has risen due to some degree of operation, i.e., where banknotes are most likely to be charged, static electricity will be generated even more than during the conveyance of the banknote, and the conventional discharge port will As for the mechanism, the number of ejected sheets increases, the curl and jam rate increases, and the occurrence rate reaches a maximum of nearly 70 sheets.

Curl jam frequency occurrence rate - Teoto frequency x 100 When the number of bills discharged is small, the static electricity of the bills is discharged from the metal etc. of the stacker, but as the number of bills discharged increases, it becomes impossible to discharge because the bills are an insulator, and the electrostatic voltage increases. I will do it. There is almost a correlation between this increase in charging voltage and the occurrence rate of curling and jamming.

When the banknotes of the embodiment are discharged under the same conditions as above, the curling and jam rates are significantly reduced, and there is no correlation with the charging voltage, resulting in a very suitable discharge mechanism for static electricity of banknotes.

The curl and jam rate data shown in Figure 7 are as follows:
This is the result of discharging banknotes 10,000 times.

In the embodiments shown in FIGS. 3 to 9, the end face of the scraping plate does not protrude into the discharge port when collecting banknotes and discharging them to the user, so there is no problem with collection, and furthermore, there is no problem in discharging banknotes to the user. Does not make you feel uncomfortable.

〔Effect of the invention〕

According to the present invention, it is possible to forcibly stack charged banknotes by using a member that removes static attraction and repulsion within the discharge port, so that jamming of banknotes is less likely to occur.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a conventional banknote discharging mechanism, FIG. 2 is a cross-sectional view of a conventional banknote discharging mechanism, FIG. 3 is a cross-sectional view of a dispensing mechanism of the present invention, and FIG. 4 is a cross-sectional view of a conventional bill discharging mechanism. 5 and 6 are cross-sectional views of the discharge port mechanism showing the operation of the discharging plate when discharging banknotes, and Fig. 7 shows the curling and jam rate of banknotes and the charging voltage of banknotes 8 to 10 are cross-sectional views of modified embodiments of the present invention. 4/22 Nistatska, 15/18: Removed parts. Engraving of the drawings (no changes to the contents) Fig. 1 Fig. 2 Fig. $ 3 Fig. $ 4 Calculation 5
CI Figure 6 $ 7 District Figure 8 (712) $ IO review procedure amendment (method) Display of case 1982 Patent Application No. 151202 Name of invention Paper sheet ejection mechanism Person who makes amendments Case and Patent 1 Applicant Name (510) Stock Accounting Hitachi, Ltd. Representative Address Address: 5-1 Marunouchi-chome, Chiyoda-ku, Tokyo, Hitachi, Ltd. Telephone: u+y 212
-1111 (Major representative) Subject of amendment Contents of amendments to application, specification, and drawings (No change to the original contents of engravings and attached sheets), Q'1 %

Claims (1)

[Scope of Claims] 1. A stacker that temporarily stores ejected paper sheets, and a stacker that protrudes onto the trajectory of the ejected paper sheets as they reach the stack, and shakes off the paper leaves passing on this trajectory and drops them into the stacker. A paper leaf ejection mechanism comprising a paper leaf blowing member. 2. The paper sheet discharging mechanism according to claim 1, wherein the paper leaf discharging member is arranged at the discharge port so as to change the path of the paper sheets in the direction in which the paper sheets fall under their own weight.