JPH09198542A - Device and method for discriminating original - Google Patents

Abstract

PROBLEM TO BE SOLVED: To discriminate the authenticity of securities such as a coupon ticket using thermosensitive paper without requiring power for operations by providing a pressing member for scrubbing a thin film sheets while pressing it onto the surface of an original. SOLUTION: Securities 8 to be discriminated of its authenticity is placed on a flat supporting table 10 and a thin film sheet 2 is arranged on its surface. When a main body 3 of device is manually pressed and slid on this surface, a rubber blade 7 of the pressing member presses and scrubs the thin film sheet 2 on the surface of the securities 8. When the securities 8 is true one composed of a printed matter, its surface is smooth so that the thin film sheet 2 is not changed. When the securities 8 is forged one composed of a copied matter on the other hand, fine ruggedness caused by the presence/absence of toner exists on its surface so that this ruggedness is transferred onto the thin film sheet 2 and visually observed. Namely, when the securities 8 is a copy, its printed image is floated on the surface of the thin film sheet 2 so that the truth/copy can be discriminated by visually observing this image.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a document discriminating apparatus and method.

[0002]

2. Description of the Related Art At present, color copying machines have become popular and their reproducibility has been improved. For this reason, when a bill or securities is copied by a color copying machine, it is difficult to visually determine the authenticity of the bill or the securities, which is a social problem.

In order to solve this problem, Japanese Patent Laid-Open No. 7-237380 discloses a printed matter capable of authenticity discrimination and a method of discriminating authenticity thereof. In this, the authenticity determining portion is printed on the printed matter by the conductive ink, and the authenticity of the printed matter is determined by the conductivity. Further, in Japanese Patent Laid-Open No. 7-29045, similarly, a scanning region is formed on an object to be detected by using a magnetic polymer, and the authenticity of the printed matter is magnetically determined by scanning the object.

However, these are the originals for discriminating authenticity,
It is necessary to form in advance the part that determines the authenticity.
Therefore, it is difficult to apply it to existing banknotes and securities, and it is not preferable because a large amount of manuscript requires cost. That is, although the above method determines authenticity by detecting a genuine article, it is actually required to determine authenticity by detecting a counterfeit article.

In reality, as described above, the problem is that fakes such as banknotes can be easily created by a color copying machine.
If the copy can be detected, the authenticity of the original can be determined. In order to realize this, attention is paid to the fact that the toner of the copy is melted by heating, and there is a device that arranges a sheet on the surface of the original and heats and pressurizes it at the same time. In this apparatus, when the original is a copy, the sheet is attached, and when the original is a printed, the sheet is not attached, so that the authenticity of a bill or securities can be determined.

[0006]

In the above-mentioned apparatus, it is possible to determine the authenticity of the original by utilizing the fact that the toner of the copying machine adheres by heating.

However, since it is necessary to heat the heater, it is difficult to use it in a place where there is no commercial power source, and it is also difficult to downsize it to a portable size. For example, although it is possible to assume that the power source is a dry battery, it is difficult to use the dry battery as a power source because a large amount of power is required to heat an original document to a temperature at which toner adheres.

Further, since thermal paper is used for securities such as coupons, it is not preferable to heat such securities.

[0009]

An original discriminating apparatus according to a first aspect of the present invention comprises a thin film sheet arranged on the surface of the original document, and a pressing member for pressing the thin film sheet against the surface of the original document to scrape it. Therefore, when the thin film sheet arranged on the surface of the original is pressed by the pressing member and abraded, fine irregularities on the surface of the original are transferred to the thin film sheet.

According to a second aspect of the document discriminating apparatus of the present invention, in the document discriminating apparatus according to the first aspect of the invention, a conveying mechanism for movably supporting the pressing member is provided. Therefore, the pressing member movably supported by the conveying mechanism presses and scrapes the thin film sheet arranged on the surface of the original.

According to a third aspect of the document discriminating apparatus, in the document discriminating apparatus according to the first aspect, a sheet accommodating portion for accommodating the thin film sheet in a freely fed manner is provided. Therefore, the thin film sheets sequentially fed from the sheet storage unit are pressed against the surface of the original by the pressing member and rubbed against each other.

According to a fourth aspect of the original discriminating apparatus, in the original discriminating apparatus according to the first, second or third aspect, an enlarging mechanism for optically enlarging the surface of the thin film sheet is provided. Therefore,
The fine unevenness of the original document transferred to the thin film sheet is optically enlarged by the enlargement mechanism.

In the document discriminating apparatus according to the fifth aspect, the document discriminating apparatus according to the first, second, third or fourth aspect is provided with an illumination mechanism for illuminating the surface of the thin film sheet. Therefore, the minute unevenness of the document transferred to the thin film sheet is illuminated by the illumination mechanism.

According to the document discrimination method of the sixth aspect, a thin film sheet is arranged on the surface of the document, and the thin film sheet is pressed against the surface of the document to be abraded. Therefore, fine irregularities on the surface of the document are transferred to the thin film sheet.

[0015]

FIG. 1 shows a first embodiment of the present invention.
This will be described below based on First, the securities discriminating system 1 exemplified here as a document discriminating device has a thin film sheet 2 and a device main body 3.

The thin film sheet 2 is made of aluminum having a film thickness of 15 (μm), and many are prepared as consumables here. The device main body 3 has a main body box 4, and wheels 5 are rotatably attached to the four corners of the lower surface of the main body box 4. An inclined support portion 6 is provided on the front surface of the main body box 4, and a rubber blade 7 as a pressing member is attached to the support portion 6. The rubber blade 7 is made of urethane rubber having a plate thickness of 5.0 (mm), and its tip projects downward from the wheel 5. That is, the thin film sheet 2 is formed on the surface of the securities 8 which is the original.
And the main body box 4 on the surface of which the wheels 5 are placed.
When it is slid while being pressed with
Presses the thin film sheet 2 against the surface of the securities 8 and scrapes it, so that the main body box 4 and the wheels 5 form a transport mechanism 9 here.

In such a configuration, the securities discriminating system 1 according to the present embodiment utilizes the fact that the surface of the copy has fine irregularities depending on the presence or absence of toner, and the securities 8 are either genuine or copy. To determine. The method of discriminating securities, which is the method of discriminating the manuscript, will be described below.

First, the securities 8 for judging authenticity are placed on a flat support 10 and the thin film sheet 2 is placed on the surface thereof. When the apparatus main body 3 is manually pressed against this surface and made to slide, the rubber blade 7 presses the thin film sheet 2 against the surface of the securities 8 and scrapes it. Then, when the security 8 is a genuine printed matter, the surface of the security 8 is smooth and the thin film sheet 2 does not change.

On the other hand, when the security 8 is a fake made of a copy, fine irregularities due to the presence or absence of toner are present on the surface thereof, and the irregularities are transferred to the thin film sheet 2 and are visually observed. That is, if the security 8 is a copy, the printed image thereof appears on the surface of the thin film sheet 2. Therefore, by visually observing this, it is possible to determine whether the security 8 is a genuine or a copy. In a general copy, it has been confirmed that the adhered toner protrudes from the surface of the printing paper to the extent of 3 to 10 (μm), which is the thin film sheet 2 of aluminum with a thickness of 15 (μm) described above. Can be transferred in a visible state.

Securities discriminating system 1 of the present embodiment
Can easily discriminate whether the securities 8 are genuine or copied as described above, and the operation does not require electric power.
It can also be used in places without commercial power sources. Moreover, since the structure is simple, it is easy to reduce the size to a portable size. Further, since the securities 8 are not heated, the authenticity of the securities 8 using a thermal paper like a coupon ticket can be discriminated.

Further, in the device main body 3 of the securities discriminating system 1 of the present embodiment, the rubber blade 7 is mounted on the main body box 4 which is slidable by the wheels 5, so that the rubber blade 7 covers the thin film sheet 2. The securities 8 can be pressed with an optimum constant pressure, and the securities 8 can be easily moved in this optimum state. That is, the authenticity of the securities 8 can be properly determined without requiring a delicate operation, and the operability is good.

The present invention is not limited to the securities discriminating system 1 described above, and allows various modifications. For example, although the rubber blade 7 as a pressing member is movably supported by the conveying mechanism 9 here, the pressing member is formed as a tool such as a stick or a brush without providing the conveying mechanism 9. It is also possible to do so.

Further, here, the thin film sheet 2 has a film thickness of 15 (μ
Although it is exemplified that it is formed of aluminum of m), it is only necessary that the unevenness of the toner can be transferred in a visible state, so that a thin film of copper or gold can also be used. further,
In addition to such a metal thin film, a resin thin film is used to form the thin film sheet 2.
It is also possible to form

For example, a thin film sheet 2 having a film thickness of 10 to 15 (μm)
When it is formed of a transparent polyethylene sheet, the toner portion develops white when it is rubbed while being pressed against the surface of the copy by a pressing member such as a rubber blade 7. In other words, when such a resin thin film sheet 2 is pressed against the convex portion of the toner, composition destruction such as microscopic cracks or cracks occurs in that portion, and it becomes white turbid, so that it changes from transparent to white. Visually visible as an image.

The thin film sheet 2 as described above can be used repeatedly because the securities 8 do not change if they are genuine, and the degree of consumption is low and it is more economical than an apparatus that consumes power. is there. Further, as described above, since the image of the copy is transferred to the thin film sheet 2 in a visible state, this becomes a copy of the copy with low quality, and the securities discriminating system 1 is used as a simple copying machine. It is also possible.

Next, a second embodiment of the present invention will be described with reference to FIG.
This will be described below with reference to FIG. Regarding the securities discriminating apparatus 21 exemplified here as the document discriminating apparatus, the same parts as the securities discriminating system 1 described above are as follows.
Detailed description will be omitted by using the same names and reference numerals.

The securities discriminating device 21 of the present embodiment is
As shown in FIG.
3 is provided, and the thin film sheet 24 is stored in the sheet storage portion 23 so as to be freely fed. This thin film sheet 2
4 is formed in a slender shape with the same width as the rubber blade 7 and is wound around a rotatable support shaft 25. The support shaft 25 is detachably mounted inside the main body box 22, and a slit 26 through which the thin film sheet 24 is inserted is formed on the front surface of the main body box 22.
The slit 26 is located directly below the rubber blade 7, and the thin film sheet 24 is provided at the tip of the rubber blade 7.
A sheet cutter 27 for cutting the sheet is attached.

With such a structure, the securities discriminating apparatus 21 of the present embodiment can discriminate the authenticity of the securities 8. In that case, as shown in FIG. 4, the thin film sheet 24 is pulled out from the main body box 22 and its tip is held on the surface of the securities 8.
Glide. Then, the rubber blade 7 presses the thin film sheet 24 against the surface of the securities 8 and rubs them against each other, so that the authenticity of the securities 8 can be determined.

After the above work, when the securities 8 are counterfeit copies and the image is transferred to the thin film sheet 24, the thin film sheet 24 is used.
7 and cut. If the securities 8 are genuine, the thin film sheet 24 does not change. In this case, therefore, it is preferable to rewind the thin film sheet 24 for reuse.

Since the lower surface of the body box 22 is open, the thin film sheet 24 can be easily rewound with fingers. In order to simplify this work, the support shaft 25
It is also possible to project the to the side surface of the main body box 22 and attach a handle (not shown) thereto. Further, since the support shaft 25 is detachably attached to the main body box 22, it is possible to replace the thin film sheet 24 which is a consumable item, and this is also easily performed from the opening on the lower surface of the main body box 22. be able to.

The securities discriminating apparatus 21 of the present embodiment is
As described above, the thin film sheet 24 is housed so that it can be fed freely, so that the work of determining the authenticity of the securities 8 can be easily executed. Moreover, since the sheet cutter 27 that cuts the thin film sheet 24 is attached to the tip of the rubber blade 7, the thin film sheet 24 as evidence can be stored, and the unnecessary thin film sheet 24 can be easily discarded. .

Next, a third embodiment of the present invention will be described with reference to FIG.
This will be described below based on Regarding the securities discriminating apparatus 31 illustrated as the document discriminating apparatus here, the same parts as those of the securities discriminating apparatus 21 described above are denoted by the same names and reference numerals, and detailed description thereof will be omitted.

The securities discriminating apparatus 31 of the present embodiment is
A pair of guide rails 32 are provided on both sides of the upper surface of the body box 22.
The pair of guide rails 32 slidably supports a Fresnel lens 33, which is a magnifying mechanism. The Fresnel lens 33 is formed in substantially the same shape as the upper surface of the main body box 22, and a stopper knob 34 is provided at the front edge portion thereof.

In such a configuration, the securities discriminating device 31 of the present embodiment also has the securities discriminating device 2 described above.
As in the case of 1, the authenticity of the securities 8 can be determined.
In that case, as shown in the figure, when the Fresnel lens 33 is projected in front of the main body box 22, the surface of the thin film sheet 24 is optically enlarged by the Fresnel lens 33. Therefore, the surface of the thin film sheet 24 can be observed finely and the authenticity of the securities 8 can be accurately broken.

In particular, the securities discriminating apparatus 2 of the present embodiment
1, the Fresnel lens 33 is provided in front of the body box 22.
Is formed so that the relationship between the optical characteristics and the height thereof becomes appropriate, the surface of the thin film sheet 24 can be satisfactorily observed. Further, the Fresnel lens 33 can be detached from the main body box 22 and used, if desired, so that the thin film sheet 24 can be observed better.

Further, since the thin film sheet 24 can be satisfactorily observed by the Fresnel lens 33 in this way,
The thin film sheet 24 can be formed narrowly. That is, the securities discriminating device 31 can be made smaller and lighter to improve portability, and the economical efficiency of the thin film sheet 24, which is a consumable item, can be improved.

Next, a fourth embodiment of the present invention will be described with reference to FIG.
This will be described below based on Regarding the securities discriminating apparatus 41 exemplified here as the document discriminating apparatus, the same parts as those of the securities discriminating apparatus 21 described above are denoted by the same names and reference numerals, and detailed description thereof will be omitted.

The securities discriminating apparatus 41 of the present embodiment is
An illumination mechanism 43 is provided above the front surface of the main body box 42. The illumination mechanism 43 has a shade 44 formed integrally with the main body box 42, and a miniature light bulb 45 which is a light source disposed inside the shade 44. A dry battery 46, which is a power source of the miniature bulb 45, is housed in the rear portion of the main body box 42 in a replaceable manner, and an on / off switch 47 thereof is provided above the side surface of the main body box 42 so as to project.

The inner surface of the shade 44 is, for example,
It is formed into a mirror surface that reflects light rays well by coating plating or mounting a metal plate. Further, since the shade 44 also serves as the support portion 6, the rubber blade 7 is attached to the lower surface thereof.
Is installed.

In such a configuration, the securities discriminating device 41 of the present embodiment also has the securities discriminating device 2 described above.
As in the case of 1, the authenticity of the securities 8 can be determined.
In that case, the on / off switch 47 is operated to operate the illumination mechanism 4.
When 3 is turned on, the thin film sheet 2 is illuminated by the illumination mechanism 43.
The surface of 4 is illuminated. Therefore, the surface of the thin film sheet 24 can be observed finely and the authenticity of the securities 8 can be accurately broken.

In particular, the securities discriminating device 2 of the present embodiment.
In No. 1, since the illumination mechanism 43 is formed so as to illuminate the front of the rubber blade 7 satisfactorily, the surface of the thin film sheet 24 can be satisfactorily observed. Moreover, since the illumination mechanism 43 structurally doubles as the support portion of the rubber blade 7, the structure is simple and the productivity is good.

Since the thin film sheet 24 can be satisfactorily observed by the illumination mechanism 43 as described above, the thin film sheet 24 can be formed with a narrow width. That is, the securities discriminating apparatus 41 can be formed smaller and lighter to improve portability, and the economical efficiency of the thin film sheet 24, which is a consumable item, can be improved.

The securities discriminating apparatus 4 according to the present embodiment.
1 uses the dry battery 46 as a consumable item,
The electric power required for lighting 5 is small and the lighting time is short, so that its economical efficiency is good. Although the lighting mechanism 43 is turned on here by manually operating the on / off switch 47, for example, a pressure switch (not shown) is provided on the bearing of the front wheel 5 to resist the elasticity of the rubber blade 7. A structure in which the illumination mechanism 43 is automatically turned on only when the box 42 is pressed downward is also possible.

[0044]

The original discriminating apparatus according to the first aspect of the present invention has the thin film sheet arranged on the surface of the original document, and the pressing member for pressing and rubbing the thin film sheet against the surface of the original document. Since it is possible to transfer minute irregularities to a thin film sheet, it is possible to determine whether the original is a copy or not, and since its operation does not require electric power, it can be used even in a place without a commercial power source. Since the structure is simple, it is possible to reduce the size and weight to a portable size.

In the document discriminating apparatus according to the second aspect of the invention, since the conveying mechanism for movably supporting the pressing member is provided,
Since the pressing member can be moved while being pressed against the thin film sheet with a certain appropriate pressure, the work can be easily performed without requiring a delicate operation.

In the document discriminating apparatus according to the third aspect of the invention, since the sheet storage portion for storing the thin film sheet in a freely feedable manner is provided, it is not necessary to prepare a separate thin film sheet, and workability is good. The portability of the document discrimination device can be improved.

In the original discriminating apparatus according to the present invention, since the surface of the thin film sheet can be satisfactorily observed by providing the enlarging mechanism for optically enlarging the surface of the thin film sheet, the authenticity of the original document is precisely determined. Can be determined.

In the document discriminating apparatus according to the fifth aspect, since the illumination mechanism for illuminating the surface of the thin film sheet is provided, the surface of the thin film sheet can be satisfactorily observed, so that the authenticity of the document is precisely discriminated. be able to.

According to the document discrimination method of the sixth aspect, a thin film sheet is arranged on the surface of the document, and the thin film sheet is pressed against the surface of the document so as to rub against the surface of the document. Since it can be transferred to a sheet,
It is possible to determine whether the original is a copy or not, and it is possible to determine the authenticity of banknotes or securities.

[Brief description of drawings]

FIG. 1 is a perspective view showing a securities discriminating system which is a first embodiment of an original discriminating apparatus of the present invention.

FIG. 2 is a perspective view showing a securities discriminating apparatus which is a second embodiment of the document discriminating apparatus of the present invention.

FIG. 3 is a perspective view showing a state in which a part of the securities discriminating device is broken.

FIG. 4 is a perspective view showing a state in which the securities discriminating apparatus is used.

FIG. 5 is a perspective view showing a securities discriminating apparatus which is a third embodiment of the original discriminating apparatus of the present invention.

FIG. 6 is a perspective view showing a securities discriminating apparatus which is a fourth embodiment of the original discriminating apparatus of the invention.

[Explanation of symbols]

 1, 21, 31, 41 Document Discriminating Device 2, 24 Thin Film Sheet 7 Pressing Member 8 Document 9 Transport Mechanism 23 Sheet Storage Section 33 Enlargement Mechanism 43 Illumination Mechanism

Claims (6)

[Claims] 1. A thin film sheet arranged on the surface of an original,
An original document discriminating apparatus comprising: a pressing member that presses the thin film sheet against the surface of the original document to scrape it. 2. The document discriminating apparatus according to claim 1, further comprising a conveying mechanism for movably supporting the pressing member. 3. The document discriminating apparatus according to claim 1, further comprising a sheet storage portion for storing the thin film sheet so that the thin film sheet can be fed freely. 4. The document discriminating apparatus according to claim 1, further comprising an enlarging mechanism for optically enlarging the surface of the thin film sheet. 5. The original document discriminating apparatus according to claim 1, further comprising an illumination mechanism for illuminating the surface of the thin film sheet. 6. A method of discriminating an original document, characterized in that a thin film sheet is arranged on the surface of the original document, and the thin film sheet is pressed against the surface of the original document and rubbed against it.