JPH0270500A - Erasable writing device - Google Patents

Abstract

PURPOSE:To perform simple writing, to protect a recording medium, and to improve its portability by separably providing a flexible sheet containing phosphor on the surface of a film secured planely onto a base material, and incorporating a recording medium formed with a magnetic recording region in one side face of the base material. CONSTITUTION:A writing device 1 is composed by separably providing a soft polyvinyl chloride sheet 5 containing phosphor on the surface 4 of a propylene film 3 secured planely onto a base material 2 made of sheet or the like. Soft polyvinyl chloride sheets 8 are applied to a both-side adhesive tape 9 to contain a card form body 7 such as a telephone card or the like on the other side face 6 of the material 2. When the sheet 5 is pressed by a finger's nail in a state that the sheet is brought into close contact with the surface of the film 3, a desired writing content can be written, and when the sheet 5 is peeled from the film 3, it is erased. Accordingly, the card form body 7 can be protected, and advantageously written, thereby improving its convenience.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention develops color by pressing a sheet provided on a base material with a fingernail or the like, and releases the color by separating the sheet from the base material by 1 minute. The present invention relates to a writing device capable of erasing display content displayed by color development.

BACKGROUND OF THE INVENTION In recent years, so-called telephone cards, which are plate-shaped recording media on which a magnetic recording area is formed, have been used to use public telephones. This card is housed in a bag-like sheet made of processed paper or soft vinyl chloride coated with synthetic resin, for example. This is configured to prevent information signals such as the number of times the telephone has been used, which are stored in the magnetic recording area of the card, from being demagnetized by static electricity or the like.

Also, when using a telephone with such a card, it is often necessary to record the contents of the conversation in writing, and in such cases, separate recording paper and a pen must be prepared in advance. You must prepare writing utensils such as
fl1 I have poor bowel movements. Moreover, in the place 3 where different contents are frequently written down, many writing papers must be carried around at all times, which poses a problem of poor portability.

SUMMARY OF THE INVENTION An object of the present invention is to provide an erasable writing device with excellent portability and improved convenience.

Means for Solving the Problems The present invention provides an erasable writing device characterized in that a soft sheet containing a fluorescent agent is removably provided on the surface of a film fixed in a planar manner on a base material. It is.

Further, the present invention is characterized in that the film is made of polypropylene, and the sheet is made of polyvinyl chloride.

Further, the present invention provides: - A flat plate-shaped recording medium having a magnetic recording area formed on its surface is housed on one surface side of a base material, and a polypropylene film is placed on the other surface of the base material in a planar shape. A soft polysalt vinyl sheet containing a fluorescent agent is removably provided on the polypropylene film, and one end of this sheet is fixed to the base material. It is an erasable writing device.

Function According to the present invention, a film is fixed to a base material, and a soft sheet containing a fluorescent agent is removably provided on the surface of the film, so that the sheet can be attached tightly to the surface of the film. When the sheet is pressed with a fingernail or the like, it can be colored in a desired color depending on the type of the fluorescent m1, thereby allowing desired written content to be written. In addition, when erasing the written content, it is erased by peeling the sheet from the film.

Further, according to the present invention, since the film is made of polypropylene and the sheet is made of polysalt C hibinyl,
The color development can be made clear, and the written content can be clearly displayed.

Further, according to the present invention, a recording medium is housed on one surface of the base material, a polypropylene film is fixed to the other surface, and a soft polyvinyl chloride sheet containing a fluorescent agent is placed on the polypropylene film. Since the sheet is provided in a removable manner, written contents can be written by pressing the sheet with a fingernail or the like, and the written contents can be erased by peeling the sheet from the film. can. Furthermore, a recording medium such as a telephone card can be stored on one surface side of the base material. Therefore, by storing the recording medium, it is possible to protect the recording medium, and it is also possible to conveniently write in connection with the use of the recording medium, thereby improving convenience.

Embodiment 1 [2I is a perspective view of one embodiment of the present invention;
[2I is a cross-sectional view taken from the section line ■--■ of the first [21], and FIG. 3 is a cross-sectional view taken from the section line ■--■ of FIG. Note that FIGS. 2 and 3 are shown enlarged in the thickness direction for ease of illustration.

The writing device 1 is basically made of polypropylene fixed in a planar manner on a base material 2 made of paper or the like.A soft polysalt containing a fluorescent agent (made of Hivinyl) is applied to the surface 4 of the lume 3.
-5 is provided in a releasable manner.

The other surface 6 of the base material 2 is provided with a soft material for storing a card-like book 7 such as a telephone card, which is a flat plate-like recording medium having a magnetic recording area formed on its surface. A polyvinyl chloride sheet 8 is adhered with double-sided tape 9.

A cutout 10 is formed in the base material 2 and the film 3 to insert the card-like body 7 therein. Further, one end of the sheet 5 is adhered to the film 3 with double-sided tape 11. As a result, even if the sheet 5 is peeled off from the film 3, it is possible to prevent the sheet 5 from coming off completely from the film 3, and therefore the peeled sheet 5
The positioning when bringing the film 3 into close contact with the film 3 again becomes easy, and the convenience is good. Note that the sheet 5 and film 8 may be heat-welded to the base material 2 using a high-frequency sewing machine called a high-frequency welder instead of the double-sided tee 19.11, or may be joined using an ultrasonic welder. You may also do so.

4th (2I) is an exploded perspective view of the writing device 1. For example, an adhesive is applied to one surface 15 of the base material 2. The material of this adhesive is, for example, a poly incyanate-based curing agent. A mixture of a polyester adhesive base agent and a solvent such as lacquer thinner can be used.

On the surface 15 of the base material 2 coated with such an adhesive,
The film 3 is adhered. With the film 3 adhered to the base material 2 in this manner, the portions indicated by the imaginary lines 16a and 16b are cut by punching or the like in order to form the cut portion 10. Next, the double-sided chip 9 is attached to the shaded area 17 of the protective sheet S, and in this state, the protective sheet 8 is attached to the other surface 18 of the base material 2.
is glued. In this way, the film 3 and the protective sheet 8 are adhered to the base material 2! A first notch 20 (indicated by A) is formed by cutting the portions indicated by imaginary lines 19a, 19b, and 19c by punching or the like.

A double-sided chip 11 is adhered to one longitudinal end of the surface 4 of the film 3 adhered to the base material 2 over a region 21 indicated by hatching, and the sheet 5 is adhered thereto.

The sheet 5, film 3, base material 2, and paper sheet 8 stacked in this manner are each formed into a band shape, for example, and the plurality of card-like writing devices 1 are formed by punching the band-like body. be able to.

The sheet 5 is made by dissolving a fluorescent dye of a desired color in the formed resin, such as polyvinyl chloride, as a coloring agent, together with the initial shrinkage of the water-soluble shrinkable formed resin, thereby causing shrinkage. It is formed by fixing the pigment in the resin. Therefore, as shown in FIG. 1, the sheet 5 is
When pressed while in close contact with the surface 4 of the film 3,
For example, written content 24 such as a telephone number can be colored and displayed in a desired color. Moreover, since the written content 4 can be visually recognized by emitting light using the fluorescent agent, the writing device 1 of Mitsuaki Otomoto can be suitably used even in a dark environment. In addition, the magnetic recording area formed on one side of the card-like body 7 between the base material 2 and the security sheet 8 can be protected through the cut 9, and the information stored in the magnetic recording area can be demagnetized. Furthermore, the written content 24 displayed as described above is
The part exposed from the notch 20 can be easily erased by grasping it with your fingers and peeling it off, making it possible to record new written content a again.

Effects of the Invention According to the present invention, since a sheet containing a fluorescent agent is provided on the surface of the film, desired content can be clearly seen even in a relatively dark place by pressing the sheet with a fingernail or the like. can be displayed. Further, since the sheets 1 to 1 are provided so as to be peelable from the film, written contents can be easily erased. Therefore, as described in the prior art, there is no need to prepare pens, writing paper, etc. in advance, thereby improving convenience.

Further, according to the present invention, since the recording medium can be stored on one surface side of the base material, it is possible to write easily with a fingernail or the like as described above, and the recording medium can be protected from static electricity. can. This makes it possible to improve portability and greatly improve convenience.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of one embodiment of the present invention, and Fig. 2I2I is a perspective view of an embodiment of the present invention.
A sectional view taken from the section line ■-■ in the figure, No. 3I21 is No. 1
FIG. 4 is an exploded perspective view of the writing device 1. FIG. 1...Writing + A placement, 2...Base material, 3...Film,
4. Surface, 5. Sheet, 6. Other surface, 7.
...Card-like body, 8...Protection sheet Agent Patent attorney Number of strokes Keiichi 1st figure 1st figure

Claims (3)

[Claims] (1) An erasable writing device characterized in that a soft sheet coated with a fluorescent agent is removably provided on the surface of a film fixed in a planar manner on a base material. (2) The erasable writing device according to claim 1, wherein the film is made of polypropylene, and the sheet is made of polyvinyl chloride. (3) A flat plate-shaped recording medium with a magnetic recording area formed on one surface is stored on one surface side of a base material, and a polypropylene film is fixed in a planar shape to the other surface of the base material. and an erasable writing device characterized in that a soft polyvinyl chloride sheet containing a fluorescent agent is removably provided on the polypropylene film, and one end of the sheet is fixed to the base material. .