JPS6265864A - Paper sheet accepting device - Google Patents

Abstract

PURPOSE:To perform acceptance of paper sheet by detecting absence, presence and multiple presence of sheet to control an accepting device of the sheet according to the detected signals and making the detections invalid, when sheet with a tape adhered thereto is accepted. CONSTITUTION:An output from a paper sheet thickness detector 6 is sent to a comparing circuit 21, in which it is compared with a reference value R1 corresponding to a single sheet and a reference value R2 corresponding to two sheets, and after the comparison, a sheet presence signal S1 and a multiple sheet presence signal S2 are generated. A CPU 22 to which the respective signals S1, S2 are sent transmits an output signal S6 for controlling an accepting roller through an electromagnetic clutch 7. Any tape adhered to the sheet turns on a thickness detection invalid switch 26. This causes an FF circuit 25 to be set, the output signal S4 of an inverter circuit 24 to be set to '0' and the gate of an AND gate 23 to be closed. Therefore, the CPU 22 does not discriminate that there are a plurality of sheets.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a paper sheet taking-in device that takes in inserted banknotes while detecting their thickness using, for example, two adjacent rows.

[Technical Background of the Invention] Generally, for example, in order to accurately count banknotes, it is important to know that there is exactly one banknote. A paper sheet intake device used for this purpose is a device that sandwiches bills between two rollers that are in contact with each other (one is a fixed roller and the other is a movable roller).
There is a device that detects the amount of displacement of the movable roller and determines whether there is one sheet, or two or more sheets. and,
If it is determined that there is one bill, each roller continues to rotate to take in the bill, and if it is determined that there are two or more bills, the rotation of each roller is stopped to stop taking in the bill.

[Problems with the Background Art] However, in the case of such a paper sheet intake device, for example, if a piece of cellophane tape having the thickness of one banknote is attached to the surface of one banknote. , it is determined by the above-mentioned thickness detection that there are two or more bills, and the banknotes cannot be taken in.

[Object of the Invention] The present invention has been made in view of the above circumstances, and its purpose is to make it possible to capture even paper sheets having a thickness of one or more sheets, such as paper sheets to which tape is attached. The object of the present invention is to provide a paper sheet intake device.

[Summary of the Invention] In order to achieve the above object, the present invention is provided with a switch means for disabling thickness detection only for the target paper sheet.

[Embodiment of the Invention] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows a paper sheet intake device according to the present invention. That is, a fixed roller 1 rotates in six directions shown by arrows, and is supported by a rotating shaft 2, and both ends of the rotating shaft 2 are rotatably supported by bases 3 and 4. A movable roller 55 is in rolling contact with the fixed roller 1,
Obtaining the rotational force of the fixed roller 1, it rotates in the direction of arrow B shown in the figure,
When a banknote P is inserted between both rollers 1 and 5, the banknote P
The movable roller 5 moves in the direction of arrow C (upward) according to the thickness of the
It is designed to move (displace).

A thickness detector 6 for detecting the thickness of the banknote P is provided above the movable roller 5, and detects the displacement l of the movable roller 5 in the direction of arrow C. On the other hand, one end of the rotating shaft 2 is connected to an output shaft of an electromagnetic clutch 7. This electromagnetic clutch 7 is turned on and off tl! by a control signal from a control circuit which will be described later. By being I@,
The rotational force of the input shaft 8 is transmitted to the rotating shaft 2 connected to the output shaft. And the above electromagnetic latch 7
An input shaft 8 is connected to a motor 10 via a timing belt 9.
The rotational force of the motor 10 is transmitted to the input shaft 8 of the electromagnetic clutch 7 via the timing belt 9.

FIG. 2 shows the control circuit. That is, the output signal of the thickness detector 6 is supplied to the comparison circuit 21. This comparison circuit 21 compares the input output signal of the thickness detector 6 with a preset reference value R1 equivalent to one banknote and a reference value R2 equivalent to two banknotes, and as a result of the comparison, Present signal S1 and 2 or more banknotes signal S
Outputs 2. This output banknote presence signal S1 is CP
In addition to being supplied to a U (central processing unit) 22, the two or more banknotes signal S2 is supplied to one input terminal of an AND circuit 23, and an output signal S5 of this AND circuit 23 is supplied to the CPU 22. The output signal S4 of the inverter circuit 24 is supplied to the other input terminal of the AND circuit 23, and the output signal S4 from the set output terminal (Q) of the flip-flop circuit (hereinafter simply referred to as FF circuit) 25 is supplied to the inverter circuit 24. A signal S3 is provided. A signal from the thickness detection disabling switch 26 is supplied to the set input terminal (S) of the FF circuit 25, and
The banknote presence signal S1 is supplied to the reset input terminal (R). As a result, when the thickness detection disable switch 26 is turned on, the FF circuit 25 is set and the AND circuit 2
Gate 3 is closed, and the signal S2 for two or more banknotes is the signal S.
5 is not transmitted. Also, “F circuit 2
5 is reset when the banknote P finishes passing through the two rollers 1.5, and is set again when the thickness detection invalidation switch 26 is turned on again. Also, CPt
J22 turns the electromagnetic clutch 7 on and off by turning on and off the clutch control signal S6! III@shi, fixed low 5
1 rotation and stop control.

Here, the relationships among the above-mentioned signals 81 to S5 are shown in FIGS. 3 to 6. FIG. 3 shows the fourth factor when the thickness detection disabling switch 26 is off for a banknote without tape pasting, and the fifth factor when the thickness detection disabling switch 26 is off for a banknote with tape pasting or two or more bills. The figure shows a case where the thickness detection disable switch 26 is on for a banknote without tape, and FIG. 6 shows a case where the thickness detection disable switch 26 is on for a banknote with tape or two or more bills. .

By the way, this paper sheet taking-in device is based on the premise that an operator inserts banknotes one by one into the taking-in roller section. At this time, if, due to an operator's mistake, the inserted bill was thought to be one bill, but actually there were two or more bills, the two or more bills signal S2 from the comparator circuit 21 becomes 1'', and the thickness detection disable switch 26 is activated. If not turned on, signal S5
becomes “1”. As a result, the CPU 22 determines that the number of inserted bills P is two or more, turns off the clutch control signal $6, turns off the electromagnetic clutch 7, stops the rotation of the fixed roller 1, and stops taking in the bills P. (Figure 4). This is the normal loading state, but if the banknote P is covered with sellotape or the like of the same thickness as the banknote P, the CPIJ 22 makes the same determination as above, and the banknote P cannot be loaded. Therefore, in such a case, when the operator turns on the thickness detection disable switch 26, it becomes possible to take in the banknotes P even if the signal S2 of two or more banknotes from the comparison circuit 21 is "1" (the Figure 6). That is, when the thickness detection disabling switch 26 is turned on, the FF circuit 2
5 is set, and the output signal S4 of the inverter circuit 24 becomes "Oe+", so the gate of the AND circuit 23 is closed.Thus, even if the signal S2 for two or more banknotes is "1", it becomes the signal S5. Since the CPI 122 does not determine that there are two or more bills and does not turn off the clutch control signal S6, the fixed roller 1 continues to rotate and can take in the bills P.

In this way, a switch is provided to disable thickness detection for the target banknote, and in the case of a banknote with sellotape, etc., by turning on this switch, thickness detection is disabled and it is possible to import the banknote. That is. This makes it possible to capture even banknotes to which a tape or the like having the same thickness as the banknote is attached, for example.

In the above embodiment, the paper sheets to be taken in are banknotes, but the present invention can be similarly applied to the case of securities other than banknotes, mail, etc.

[Effects of the Invention] As detailed above, according to the present invention, there is provided a paper sheet taking-in device that is capable of taking in sheets having a thickness of one or more sheets, such as paper sheets pasted with tape. Can be provided.

[Brief explanation of drawings]

The drawings are for explaining one embodiment of the present invention. FIG. 1 is a perspective view showing the overall configuration, FIG. 2 is a configuration diagram of a control circuit, and FIGS. 3 to 6 each illustrate the operation. It is a timing chart for explanation. 1... Fixed roller, 5... Movable roller, 6... Thickness detector, 7... Electromagnetic clutch, 10... Motor , 21...Comparison circuit, 22...CPtJ, 23...AND circuit, 25...FF circuit, 26...
・Thickness detection disable switch. 52, -11111go”54
□(y□Figure 3 Figure 4 Figure 5 Figure 6

Claims (3)

[Claims] (1) In a paper sheet intake device that takes in inserted paper sheets while detecting their thickness, there is a fixed roller connected to a drive means and rotationally driven by the drive means, and a fixed roller that is in rolling contact with the fixed roller. a movable roller that is displaced according to the thickness of the paper sheet inserted between it and the fixed roller; a detection means that detects the displacement of the movable roller; and a detection means that detects the displacement of the movable roller based on the output signal of the detection means. determining means for calculating the amount and determining whether the number of paper sheets inserted between the fixed roller and the movable roller is one or two or more;
A control means for stopping the driving means when two or more judgment signals are output from the judgment means, and a switch means for invalidating the two or more judgment signals output from the judgment means as necessary. A paper sheet intake device characterized by comprising: (2) The paper sheet taking-in device according to claim 1, wherein the switch means is configured to function only for one time of taking in sheets. (3) The paper sheet intake device according to claim 1, wherein the paper sheet is a banknote.