JPH033844A - Paper sheet handling mechanism - Google Patents

Abstract

PURPOSE:To keep detecting accuracy constant by providing a sheet detecting means on a paper sheet conveying path, and comparing the length of a sheet detected by the sheet detecting means to a reference value. CONSTITUTION:When two sheets 10a, 10b are conveyed by mistake one above another, the upper sheet 10a of these sheets 10a, 10b is conveyed as usual by rotating rollers 3a, 6, while a blocking force is applied to the lower sheet 10b by a high friction non-rotating member 7 to produce a slippage between the upper sheet 10a and the lower sheet. In this case, sheet detecting sensors 8, 9 detect that plural sheets exist simultaneously, and then the conveyance of overlapped sheets can be detected by a discriminating circuit.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a paper sheet handling mechanism and a device using the same.
In particular, the present invention relates to a paper sheet handling mechanism suitable for detecting overlapping paper sheets.

[Prior Art] Conventionally, as a method for detecting overlapping paper sheets in a paper sheet handling mechanism, for example, Japanese Patent Application Laid-Open No. 63137870
The method disclosed in the above publication was known. This method is based on the thickness of a single sheet, and detects overlapping of sheets by opening the thickness of the target sheet.

[Problem to be solved by the invention] In the above-mentioned conventional technology, when the paper sheets to be detected are thin, the resolution of the means for detecting overlapping paper sheets must be high, and high accuracy is required. Therefore, there was a problem that the mechanism was expensive. Furthermore, there is also the problem that the accuracy may be reduced due to changes over time in the sensor constituting the detection means.

The present invention has been made in view of the above circumstances, and its purpose is to solve the above-mentioned problems in the prior art, and to provide paper sheets that are inexpensive and whose detection accuracy does not easily change. It is an object of the present invention to provide a paper sheet handling mechanism that includes O;1'' overlap detection means of the same type.

[Means for Solving the Problems] The object of the present invention is to provide a paper sheet handling device having a paper sheet transport path, and to provide a sheet detection means for detecting paper in the paper sheet transport path 11, In the paper sheet handling mechanism or the paper sheet handling device, characterized in that the paper length detected by the paper detection means is configured to be compared with a reference value, in the paper sheet transport path, A paper sheet comprising: a conveying means having rotating paper sheet conveying rollers and a high friction non-rotating portion side supported oppositely; and a paper detecting means provided in a position close to the conveying means. This is achieved through a handling mechanism.

[Function] In the paper sheet handling mechanism according to the present invention, the paper sheet transport path is provided with a 1-fold paper detecting means, so that when sheets overlap, this is detected as a change in length. ,”
- Since the paper length detected by the paper sheet detection means is configured to be compared with a reference value such as a preset value, the paper sheet overlap detection means is inexpensive and whose detection accuracy is difficult to change. It is possible to realize a paper sheet handling mechanism.

In addition, in order to reliably detect this as a change in length when sheets overlap, a part of the pair of conveyance rollers is connected to a high-friction non-rotating roller that is supported opposite to the paper sheet conveyance rotating roller. It is composed of members. Furthermore, by configuring the above-mentioned sheet conveyance rotary roller and the high-friction non-rotating member so that they intersect with each other, conveyance when sheets are not overlapping and separation when sheets are overlapping are improved. This can be made even more reliable.

[Example] Hereinafter, an example of the present invention will be described in detail based on the drawings.

FIG. 1 is a schematic diagram of a paper sheet handling mechanism according to an embodiment of the present invention, and FIG. 1(a) is a side view thereof. As shown in the figure, in the paper sheet handling mechanism shown in this embodiment, a conveyance path for conveying sheets is formed by frames 2a and 2b, and a conveyance path for conveying sheets is formed by frames 2a and 2b. Rotating roller 3a.

4a, and a driven roller 3b that is pressurized and rotates as a result of the rotation.
4b is provided.

FIG. 1(b) is a cross-sectional view of a plane including the axes of the rotating roller 3a and the driven roller 3b, and the rotating roller 3a is configured to be driven by means such as a motor (M) or a belt drive. There is. The rotating roller 4a and the driven roller 4b are also
It is configured similarly. FIG. 1(C) is a cross-sectional view of two sets of rotating rollers 3a, 3t); 4a, /lb on a plane including the axis of the roller portion located approximately in the center.

This roller part has a shape 2 that is the same as the two rotating rollers 3a.
A rotary roller 5a with a function and a driven roller 51) with the same shape and dual functions as the driven roller 3b are provided. A rotating roller 6, which rotates together with the rotating roller 5a and is slightly larger in size than the rotating roller 5a, is attached to the shaft of the rotating roller 5a. Further, a non-rotating member 7 made of two high friction coefficient members is arranged opposite to the rotating roller 6. The non-rotating member 7 is circular here and has the same shape as the other driven rollers 3b, 4b, 5b, etc., but this has no particular meaning. In addition, before and after the rotating roller 6,
As shown in FIG. 1(a), two sets of paper detection sensors 8, 9
However, the distance between them is set to be slightly larger than the length of the paper to be conveyed.

FIG. 2 is an explanatory diagram of the operation of the paper sheet handling mechanism of this embodiment configured as shown in FIG. 1. Paper being conveyed along the conveyance path 1 in the direction of the arrow is conveyed one after another by the rotation of the rotary rollers 3a and 6.4a, and is sent to the conveyance path behind the rotary roller 4a.

At this time, the paper detection sensors 8 and 9 indicate that paper is present.

Absence is detected alternately, but since the distance between the two is set to be larger than the paper length, normally both do not detect the presence of paper at the same time.

Now, suppose that two sheets of paper are accidentally conveyed overlapping each other. -I- side paper 108. Let the paper on the bottom side be 10b. The upper paper 10 is moved by rotating rollers 3a,
6, the paper is transported in the same way as normal, but the lower paper
01), static force is applied by the high friction non-rotating portion 7, causing a deviation from the sheet 10a. In this case, the paper detection sensors 8 and 9 simultaneously detect the presence of paper, and from this, the discrimination circuit can detect overlapping conveyance of paper.

In the first embodiment, two sets of paper detection sensors 8 and 9 are used, but by combining them with a time monitoring circuit according to the paper length, the purpose can be achieved with either one of them. For example, if only the paper detection sensor 8 is used, if the trailing edge of the paper is detected within a predetermined time after detecting the leading edge of the paper being conveyed, the trailing edge of the paper will be detected after the predetermined time, rather than being conveyed in an overlapping manner. Alternatively, if the presence of paper is detected even after a predetermined period of time, it can be determined that the conveyance is due to heavy paper.

In the paper sheet handling mechanism shown in Figure 1, Figure 3 (a)
), the installation of the two sets of high-friction non-rotating members 7 can be done by providing a position adjustment screw 12 on the stand 11 and making it possible to change the facing distance between the rotating roller 6 and the high-friction non-rotating member 7. , it becomes possible to adjust the above-mentioned static force according to the thickness, rigidity, etc. of the paper being conveyed. Similarly, as shown in FIG. 3(b), even if the pressure force can be adjusted by providing the adjustment screw I4 of the pressure spring 13 of the high-friction non-rotating member 7, the above-mentioned static force cannot be adjusted. becomes possible. Furthermore, if these position adjustment screws 12 or 14 are configured to be driven by a motor to control the amount of rotation, the above-mentioned static force can be controlled at any time, and the required static force can be varied. This has the effect of making it possible to cope with continuous conveyance of paper.

FIG. 4 is a side view showing a main part of another embodiment of the present invention, in which the high-friction non-rotating member 7 described above has a circular shape and its mounting shaft is driven by a motor (M) or the like. It is constructed as follows. According to this embodiment, when overlapping sheets are detected, they can be easily transported, discharged, or collected.

By the way, if paper is conveyed by a paper sheet handling mechanism not shown in each of the above embodiments, the high friction non-rotating part 7 mentioned above
However, it is thought that it will gradually wear out. For this,
As shown in FIG. 5, by rotating the fixed end ft1t of the mounting shaft of the high-friction non-rotating member 7 by a certain angle so that it can be inserted into the cylinder, the unworn portions can be sequentially moved toward the paper side. This allows for easy maintenance. In addition, as described in ``1'', the fixed end portion 15 of the mounting shaft of the high-friction non-rotating member 7 can be set by rotating it at a certain angle. As a shape having opposing parallel surfaces, it is possible to adopt a method of fitting it into a hole in a holder, or a method of dropping it into a vertical groove provided in a holder.

Furthermore, the aforementioned high-friction non-rotating member 7 is made into a circular shape as shown in FIG. 6, and each portion of this is divided radially into
By using materials with different coefficients of friction, the above-mentioned static force can be controlled at any time, making it possible to cope with the continuous conveyance of sheets with different required static forces. Furthermore, by making the high-friction, non-rotating portion 7, which is made up of a plurality of materials with different friction coefficients, as shown in FIG. Even when being transported, the required static force can be set sequentially.

All of the above embodiments are given as examples;
The present invention includes arbitrary selection and combination of these. Note that the present invention can be effectively utilized in a device configured to feed out sheets having different coefficients of friction from a plurality of hoppers.

〔Effect of the invention〕

As described in detail above, according to the present invention, in a paper sheet handling device having a paper sheet transport path, a paper detecting means is provided in the paper sheet transport path, and the paper sheet detecting means detects the paper sheet. Since the paper length is configured to be compared with a reference value, it is possible to realize a paper sheet handling mechanism that is inexpensive and equipped with a paper sheet overlap detection means whose detection accuracy is difficult to change. It is something.

[Brief explanation of the drawing]

Fig. 1 is a configuration diagram of a paper sheet handling mechanism which is an embodiment of the present invention, Fig. 2 is an explanatory diagram of the operation of the paper sheet handling mechanism shown in Fig. 1, and Figs. FIG. 3 is a configuration diagram showing another embodiment of the invention. 1, conveyance path, 3 a + 4 a + 5 a and 6
9 rotating roller, 3 b, 4 b, 5 b driven roller, 7 high friction non-rotating member, 8, 9. Paper detection sensor. 2nd figure 365- 6th figure=366

Claims (1)

[Claims] 1. In a paper sheet handling device having a paper sheet conveyance path,
A paper sheet handling mechanism, characterized in that a paper detecting means is provided in the paper sheet conveying path, and the paper length detected by the paper detecting means is compared with a reference value. 2. The paper sheet handling mechanism according to claim 1, wherein the paper detecting means comprises two detecting elements whose mutual spacing is adjustable. 3. The paper sheet handling mechanism according to claim 1, wherein the paper detecting means comprises one detecting element and a time monitoring circuit. 4. In a paper sheet handling device having a paper sheet conveyance path,
A conveying means having a paper sheet conveying rotary roller and a high-friction non-rotating member that are supported in opposition to each other is provided in the paper sheet conveying path, and a paper detecting means is provided at a position close to the conveying means. A paper sheet handling mechanism featuring: 5. The paper sheet handling mechanism according to claim 4, wherein the paper sheet detection means comprises two detection elements whose mutual spacing is adjustable. 6. The paper sheet handling mechanism according to claim 4, wherein the paper detecting means comprises one detecting element and a time monitoring circuit. 7. The sheet conveying rotary roller and the high-friction non-rotating member constituting the conveying means are constructed such that they intersect with each other with respect to the sheet conveying surface.
6. The paper sheet handling mechanism according to any one of 6. 8. The paper sheet handling mechanism according to claim 7, further comprising a means for adjusting the opposing position or pressure of the paper sheet transport rotating roller and the high-friction non-rotating member constituting the transport means. . 9. The high friction member constituting the conveyance means,
The paper sheet handling mechanism according to claim 7 or 8, characterized in that it has a circular shape and is configured to be rotatable and set at predetermined angles. 10. The paper sheet handling mechanism according to claim 9, wherein the high friction member is composed of a plurality of members having different coefficients of friction.