JPS6254732B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for detecting the frontmost banknotes from a group of banknotes deposited in a hopper, such as an automatic teller machine, an automatic cash deposit machine, an automatic cash exchange machine, an automatic cash deposit/dispensing machine, etc. This invention relates to a paper sheet delivery device that separates and sends paper sheets one by one.

When feeding paper sheets accumulated in the hopper at a high speed from the transverse direction, if there are strong creases in the paper sheets, it is likely that the paper sheets will not be able to be fed out smoothly, so these creases must be carefully considered. Must be.

For example, banknotes M are generally folded into four or three folds as shown in Figs. The folds of a book protrude in opposite directions, and in a three-fold fold, two folds remain;
The folds will protrude in the same direction.

FIG. 3 shows a banknote feeding device (Japanese Patent Publication No. 54-32222) filed by the same applicant, in which a group of banknotes M is thrown into the hopper section and pressed against the pick-up roller 3 by the push plate 1b of the hopper 1. The state shown is as follows. The bill M is fed out by rotating the pick-up roller 3 after the push plate 1b presses the bill M against the pick-up roller 3.
The pressing plate 1b presses the banknote group M in parallel against the pick-up roller 3, and the pressing force is applied by a spring.

In the conventional banknote dispensing device shown in FIG. 3, when a banknote M with a four-fold crease Q is inserted into the hopper as shown in FIGS. A portion where the fold line Q faces the pick-up roller 3 in a convex shape and a portion where it faces the pick up roller 3 in a concave shape are formed.

Therefore, when the pick-up roller 3 rotates, the side facing the convex shape of the banknote M receives a stronger conveying force than the pick-up roller 3 at the crease Q, and the side facing one of the concave shapes receives a weaker conveying force than the pick-up roller 3. This results in a large slope of the delivery.

Also, as shown in Figure 6, the three-fold fold Q
When a certain banknote M is thrown into the hopper, the two folds Q of the banknote both face the pick-up roller 3 in a convex manner as shown in the figure. Now, when the pick-up roller 3 rotates, the two folds receive a strong conveying force, but if the fold Q is not exactly at the point where the banknote M is divided into three equal parts, the pick-up roller will move the bill to the fold Q. There will be a difference in the moment received by the machine, resulting in a delivery with a large slope.
Three folded banknotes M set as shown in Fig. 7
In this case, since the fold Q no longer faces the pick-up roller 3, the paper is fed out with a small slope.

When the banknotes M are sent out at an angle, jams occur at the joints and gates of the conveyance path, and
When recognizing this banknote M, recognition errors are likely to occur.

In view of the above-mentioned points, the present invention has been developed to provide a paper sheet feeder that can smoothly feed out the paper sheets stored in the hopper without tilting them even if there are four-fold or three-fold creases remaining on the paper sheets. The purpose is to provide a device.

A feature of the present invention is that the pick-up roller for sending out the paper sheets accumulated in the storage section to the separating means is arranged so that the pick-up roller, in the sheet sending state, is not placed on a line that divides the paper sheets into four equal parts or on a line that divides the paper sheets into three equal parts. The reason for this is that multiple units were placed at different locations.

Hereinafter, the paper sheet feeding device of the present invention will be explained with reference to FIGS. 8 and 9, taking an automatic teller machine as an example.

In FIGS. 8 and 9, reference numeral 1 denotes a hopper in which banknotes M input from the input slot 2 are stored in an upright position. It is composed of a bottom plate 1c and a side plate (not shown), and there is a gap between the front plate 1a and the bottom plate 1c at the lower end corner of the hopper 1 for feeding the frontmost banknote M downward by a pick-up roller to be described later. is provided. Further, a long hole 1d is bored in the horizontal direction slightly below the center of the front plate 1a of the hopper 1, and the frontmost banknote M of the group of banknotes in the hopper 1 is inserted into this long hole 1d. A pick-up roller 3 for feeding the bill into the gap is faced, and a friction member 3a made of rubber or the like is provided on the circumferential surface of the pick-up roller 3 to avoid the four-fold and three-fold folds of the bill. The banknote M is placed in contact with the banknote M at the forefront of the group of banknotes. Numeral 4 is a feed roller mounted on a shaft 4a which is close to the gap provided at the lower end corner of the hopper 1 and is rotatably supported on the machine frame at a distance to the left and right regardless of the fold line of the banknote. The feed roller 4 has a groove 4b around the entire circumference, and a friction member 4c made of rubber or the like of a required length is attached to the large diameter portion on both sides of the groove 4a. I'm trying to scrape out M. The shaft 4a of this feed roller 4 is driven by an electric motor via a clutch brake. The rotation of the shaft 4a of this feed roller 4 is
A roller 5 having a convex portion 5a integrally attached to the a end
The signal is then transmitted to the pick-up roller 3 via the rubber roller 6. Reference numeral 7 denotes a gate roller disposed facing the groove 4b of the feed roller 4. These gate rollers 7 are made of a material having a large coefficient of friction and are supported by a shaft 7a. Only the frontmost bill M pulled out downward by the pick-up roller 3 is sent to the conveyor belt 8 by the feed roller 4 and the gate roller 7.

When the bill M is pushed between the feed roller 4 and the gate roller 7 by the rotation of the pick-up roller 3, if there is only one bill, the feed roller 4
However, when two stacked banknotes are fed in, the banknotes on the feed roller 4 side are conveyed, but the banknotes on the gate roller 7 side are fed out because the shaft 7a of the gate roller 7 is stopped. , no conveying force is generated, and shearing force is generated between the banknotes to separate the banknotes.

The banknotes M stored in the aforementioned hopper 1 are the first
As shown in FIG. 0, when the four-fold crease Q remains, when pressed against the pick-up roller 3 by the push plate 1b, the friction member 3a of the pick-up roller 3 will remove the fold of the bill M. A straight banknote M with no creases, which does not hit the eye Q but hits the flat part P of the banknote as many as the number of friction members installed in 6 places.
Therefore, the bill M can be fed out without being tilted as shown by the broken line in FIG. 11. Similarly, in the case of a triple-folded banknote shown in FIG. 12, the friction member 3a of the pick-up roller 3 does not hit the fold of the banknote but the flat part P, so that it does not tilt as shown by the broken line in FIG. Banknotes M can be sent out using the following steps.

As described in detail above, according to the present invention, even if the paper sheet has creases, the pick-up roller ensures reliable contact between the paper sheet and the pick-up roller for feeding it. Left and right imbalances are less likely to occur in the application of conveying force to paper sheets.

As a result, conventional separation mechanisms are unable to achieve highly reliable separation of sheets because the conveyance force is insufficient and misfeeds occur, or large skews occur in the separated sheets. However, according to the present invention, these conventional problems can be solved and sheet separation can be performed with high accuracy and reliability.

[Brief explanation of the drawing]

Figures 1 and 2 are explanatory diagrams showing the folds of banknotes, Figure 3 is a schematic diagram of a conventional banknote delivery unit, Figures 4 to 7 are schematic diagrams of a conventional banknote delivery unit and folded banknotes; FIG. 8 is a side view of a bill dispensing device showing one embodiment of the present invention, FIG. 9 is a schematic front view thereof, and 10th to 13th FIG.
The figure is a diagram showing the operating state of the present invention. DESCRIPTION OF SYMBOLS 1...Hopper, 1b...Press plate, 3...Pick-up roller, 3a...Friction member, M...Banknote.

Claims (1)

[Scope of Claims] 1. The paper sheets M accumulated in the storage section 1 are sent to the separating means 4, 7 by a plurality of pick-up rollers 3, 3a disposed opposite to the paper sheet sending surface, and the paper sheets M are sent to the separating means 4, 7. In the paper sheet feeding device which separates and conveys paper sheets one by one, the pick-up rollers 3, 3a are disposed at positions avoiding the line dividing the paper sheet into four equal parts and the line dividing the paper sheet into three equal parts in the paper sheet delivery state. A paper sheet feeding device characterized by the following.