JPH0679200B2 - Stamp record sheet - Google Patents

Description

Description: [Industrial field of application] The present invention relates to a stamp recording sheet in which information on various articles, outdoor facilities, individuals, etc. is recorded.

[Conventional technology]

For example, in boxes packed with various products and deliveries, in order to improve the efficiency and labor of operations such as sales calculation, inventory management, and sorting work, various types of information regarding those items are displayed in various widths. A bar code label recorded by being coded as a bar is attached and is widely used.

[Problems to be Solved by the Invention]

By the way, such a bar code label usually has a structure in which a black bar is printed on a label material such as white, but the label surface is stained or the bar portion is discolored due to the influence of sunlight (ultraviolet rays). If it becomes thin, there is a possibility that the information recorded on the bar code label cannot be read reliably and accurately, and there is a problem especially when it is used outdoors.

Therefore, in view of the above-mentioned conventional problems, the present invention is capable of reliably and accurately recording information over a long period of time without the risk of reading failure due to stains or discoloration. At the same time, it is an object of the present invention to provide a stamp recording sheet that can be easily scanned when reading information with a magnetic sensor.

[Means for Solving the Problems]

In the stamped recording form of the present invention, a recording portion in which a groove serving as an uneven surface corresponding to recorded information is stamped with an array pattern of barcode symbols is formed on a substrate made of a magnetic material, and the recording portion is made of a non-magnetic material. As the groove width of the concave portion which forms the recording portion is narrower, the groove is formed deeper and the recording portion is made of a non-magnetic material such that at least the unevenness is not visible. It is the one that is covered.

[Action]

The stamp recording form of the present invention can magnetically read the pattern as follows. That is, in this stamped recording form, for example, a sensor in which a magnet and an MR element are integrated is provided on the upper surface, and a magnetic field is supplied from the magnetic field generation source to distort the magnetic field line distribution near the edges of the concave and convex portions of the recording unit. Therefore, by detecting the strain in the width direction of the recess as the change in resistance of the MR element (magneto-resistive element), the maximum and minimum resistance change is shown at each edge, so An analog signal with a corresponding peak level can be obtained. Then, by decoding this signal, the pattern recorded in the recording section can be reproduced. Also in this case, since the recording sheet is stamped, the pattern can be read even if dirt or the like is attached.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. First, a reference example will be described prior to this example.

FIG. 1 shows a stamp recording sheet of a reference example for explaining the present invention, and this stamp recording sheet has a structure in which a protective film 2 is formed on an outer surface of a substrate 1.

The substrate 1 is formed in a rectangular thin plate shape using a magnetic material such as iron, and in particular, the upper and lower surfaces which are mirror-finished with as few irregularities as possible are used. And this substrate 1
On the top of the, various information, such as soldiers, construction machinery, vehicles,
A recording unit 3 is engraved in order to recognize the affiliation name and the number of manufactures related to gas cylinders, machine parts, factory process control, outdoor facilities such as steel towers. The recording portion 3 is composed of a concavo-convex surface formed with a width corresponding to various kinds of information, and has a pattern similar to the bar code symbol array pattern. Particularly, in this reference example, it is composed of a groove formed by punching. There is.

The protective film 2 does not corrode over a long period of time, and the recording portion 3 is not corroded.
To protect the substrate from the non-magnetic material such as plastic or nickel coated with a non-corrosive material on the entire surface of the substrate 1 in a thin film, or non-magnetic material such as lead (Pb) or tin (Sn). It is made by plating the following stainless steel.

Therefore, according to this reference example, the protective film 2 is applied over the entire surface of the substrate 1, the manufacturing process is simple, and the manufacturing cost is low.

FIG. 2 shows a stamped recording sheet of a second reference example for explaining the present invention. This stamped recording sheet is made of a magnetic material such as iron (F _e ), cobalt (C _o ), nickel. A thin plate-like substrate 4 made of a ferromagnetic material formed of (N _i ), etc.
The recording section 5 has grooves having large and small widths formed at predetermined intervals in the arrangement pattern of the bar code symbols, and the non-magnetic film 6 is molded so that the grooves are completely buried in the recording surface 5 side of the substrate 4. Has become.

In order to suppress the occurrence of an error during reading, the substrate 4 is usually one on which upper and lower surfaces are mirror-finished with high precision.

In this embodiment, the recording unit 5 has a predetermined width according to the information to be recorded on the upper surface portion of the substrate 4, and the distance between the recording unit 5 and an adjacent one is set to a predetermined length with a constant depth d. It is composed of carved grooves. And this recording unit 5
When a magnetic field is supplied from the outside by a magnet or the like, the magnetic field lines are distorted due to concentration of magnetic field lines toward the groove side surface, and the width direction component of the distribution is detected to detect the signal corresponding to the edge of the groove. It is possible to obtain, in other words, a signal corresponding to the width of the recess and the length between adjacent recesses, that is, a signal corresponding to the concavo-convex pattern. Further, by decoding the signal, the original recording pattern can be recognized and reproduced.

The non-magnetic film 6 has a structure in which a non-magnetic material such as plastic resin is molded from the recording surface 5 to a constant thickness.

Next, examples of the present invention will be described.

FIG. 3 shows a stamp recording sheet according to the present invention. This stamp recording sheet has a groove of the concave portion 7 forming the recording portion, particularly the _{one having} a narrow groove width (W ₁ ) of the concave portion 7. The depth (d ₁ ) is deeper (d ₁ > d ₂ ) than the groove depth (d ₂ ) of the wider groove width (W ₂ ).

Thus, by making d ₂ shallower than d ₁ , it is possible to prevent the magnetic field in the vicinity of the wide groove from being greatly distorted, so that the magnetic field on the upper surface of the adjacent narrow groove is less distorted.

Therefore, according to this embodiment, by changing the depth of the groove depending on the width of the groove, the output waveform corresponding to the concave portion 7 at the time of reading information is less distorted, and the performance is improved. It will be possible.

〔The invention's effect〕

As described above, according to the stamp recording sheet of the present invention, the concave-convex pattern formed by the grooves engraved on the substrate surface is configured as the recording unit, and there is a risk that the recording unit will be lost due to stains or sunlight. Even if it is used outdoors for a long period of time, the information can be surely recorded, and the output waveform at the time of reading the information is less distorted, and higher performance can be achieved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a stamp recording sheet of a reference example, FIG. 2 is a sectional view showing a stamp recording sheet of a reference example, and FIG. 3 is a sectional view showing an embodiment of a stamp recording sheet according to the present invention. . 3,5 …… Recording section, 1,4 …… Board.

Claims (1)

[Claims] 1. A recording portion, in which irregularities are engraved in a shape corresponding to information to be recorded, is formed on a substrate surface, and the substrate surface is covered with a non-rusting material such as plastic or nickel to form a concave portion constituting the recording portion. An engraved recording form characterized in that the groove having a narrow groove width is deeply formed.