JPH0939370A - Highly durable braille and tool for forming the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the abrasion resistance of braille by a method wherein a curing agent brought to a liquid or mist state by melting, dissolving or atomization is bonded to or infiltrated into the marking part of braille paper to be solidified. SOLUTION: Braille paper is hardened by a physical method absorbing a certain substance to dry the same or chemical reaction such as the polymerization of a substance to increase the hardness of a braille marking part. When carnauba wax being high m.p. wax is used as a substance hardened after absorption or adhesion, carnauba wax 9 being a hardener is housed in the container 3 provided in the grip part of braile brush in a shape suitable for use, for example, a cylindrical shape and a heating element 5 capable of heating carnauba wax to necessary temp. to melt the same is provided. At a time of use, carnauba wax 9 is made liquid by heating to be passed through a perforated braille brush neede 7 and supplied to the braille paper from the tip thereof to be infiltrated thereinto at a braille marking position.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to Braille and a tool for making Braille.

[0002]

2. Description of the Related Art Braille works, for example, publications such as dictionaries and documents, are used for a long period of time, that is, when a document written in Braille is frequently read by touching a fingertip (hereinafter referred to as tactile reading). , Braille translators who have hard-printed Braille often wear it by rubbing against the fingertips while reading it many times, making it difficult to read. Conventionally, in order to reduce this abrasion, the thickness of the paper used has been increased.

[0003]

However, in the conventional method, even if the thickness of the Braille paper is increased, the abrasion resistance is limited to a few tens of tactile readings in a practical range. There is a problem that literacy becomes difficult when touching more times than this.

Another problem is that a book engraved on thick Braille paper is bulky.

Furthermore, since thick braille paper requires power for inscription, there is also a problem that the braille translator's fatigue is accelerated.

[0006]

The above-mentioned problems are caused by the limit of wear resistance of Braille paper, the trade-off between wear resistance and paper thickness, and the trade-off between wear resistance and workability. In order to solve these problems, we paid attention to the fact that it is effective to give some reinforcement to the braille part at the time of or after engraving.

In order to solve the above-mentioned problems, according to a first aspect of the present invention, the hardened portion of the Braille paper is adhered or impregnated with a hardening agent in the form of a liquid or a mist and then solidified to make the Braille wear resistance. Improved.

A second aspect of the present invention relates to a braille engraving tool for engraving braille for producing the braille of the first aspect. In addition to the needle portion that performs engraving, a hardener storage portion is provided for impregnating and solidifying the hardened agent that has liquefied at the time of engraving into the engraved portion of Braille paper, and a passage that guides the liquid agent to the tip of the needle portion. .

A third aspect of the present invention relates to a braille curing tool for producing braille by impregnating and solidifying a liquefied curing agent into an engraved portion of a braille paper after the usual engraving to make the braille according to the first aspect. , A curing agent storage section, a contact section that contacts the engraved section, and means for guiding the liquid agent from the curing agent storage section to the contact section.

According to a fourth aspect of the present invention, in order to produce the Braille of the first aspect, Braille curing is performed by spraying or impregnating the atomizing portion of the Braille paper with a curing agent that is atomized after the usual inscription. Regarding tools. It is provided with a curing agent storage section, an atomization section, and a spray gas delivery means.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention utilizes the absorbability or adhesiveness of a liquid substance that ordinary paper has. Braille paper is a physical substance that absorbs a certain substance and dries, or by a chemical reaction such as polymerization of the substance,
It increases the hardness of the engraved part of braille.

The following substances were tested with respect to the choice of substances which harden after being absorbed or attached to the paper. An aqueous solution of gum arabic, which is a type of vegetable gum, a boiling aqueous solution of starch, a varnish-based organic solvent solution, a cyanoacrylate used as an instant adhesive, a solvent solution of a thermoplastic,
Carnauba wax is a high-melting wax. Although each substance has advantages and disadvantages, it was found that the high temperature melting wax is the best when comprehensively judged.

According to the second aspect of the present invention, characters are engraved by a brush, and at the same time, a part of the curing agent stored in the curing agent reservoir is impregnated into the engraved portion of the Braille paper through the guide passage to solidify.
When a high-temperature molten wax that is solid at room temperature is used as a curing agent, the curing agent is heated and liquefied by a heater and then sent to the engraved portion. When the tip of the brush is separated from the engraved portion, the high-temperature molten wax impregnated in the braille paper is deprived of heat by the braille paper and the surrounding air and solidifies, and has the same hardness as a human nail.

According to the third aspect of the present invention, after the normal engraving, a part of the curing agent stored in the curing agent storage part of the braille curing tool is impregnated into the engraved part of the braille paper and its periphery through the contact part to be solidified. The contact part has a structure in which the width of one braille character or the width of plural characters can be applied at one time. When a high temperature molten wax that is solid at room temperature is used as a curing agent, the curing agent is heated and liquefied by a heater and then sent to the contact portion. When the contact portion of the braille curing tool separates from the engraved portion, the high temperature molten wax impregnated in the braille paper is solidified by the heat of the braille paper and the surrounding air.

According to the present invention, the hardener suitable for spraying is atomized after the ordinary engraving and sprayed on the engraved portion of the Braille paper to adhere or impregnate it to improve the hardness of the Braille. The curing agent

Any of the above may be used as well.

[0016]

EXAMPLE The use of carnauba wax is illustrated as an example using a high temperature molten wax. Of course, the substances exemplified as the substances tested in the action may be used. Carnauba wax has a freezing point of about 82 ° C and has a hardness similar to that of a human nail at room temperature. By heat-melting and impregnating this into the braille-engraved portion of Braille paper and solidifying at room temperature, the hardness of the paper can be strengthened and the intended purpose can be achieved. This carnauba wax can be easily made into a liquid having a low viscosity by heating it to a temperature above the freezing point, and has a performance suitable for the use according to the present invention.

In order to use this substance in the present invention, the following three methods can be considered. The first method is to provide a heating device for accommodating a shape suitable for use of carnauba wax, for example, a cylindrical shape, as shown in FIG. When used, the liquid is passed through a perforated stylus needle as a liquid carnauba wax, and the carnauba wax is supplied and impregnated into the braille marking position of the braille paper from its tip. 1 and 2, it is in the shape of a braille, but it may be adopted as a part of the mechanism of a braille typewriter or a braille printer.

The second method, as shown in FIG. 3, is Braille 1
Impregnation with carnauba wax by sliding the required engraved part of the paper after the usual braille engraving with a braille curing tool that has a contact part that can apply the width of a character or the width of multiple characters at a time. You can As can be seen from the shape of FIG. 4, since the vertical and horizontal dimensions of the contact portion are changed, the width of contact can be changed by changing the orientation of the curing tool by 90 degrees. Although the shape is easy to hold in FIGS. 3 and 4, it may be adopted as a part of the mechanism of the Braille typewriter or the Braille printer.

The third method is a spray method having the structure described in claim 4. Carnauba wax is not suitable as a curing agent in this method. Suitable curing agents include melts of thermoplastics having a hardness suitable for the application, shellac varnish-based or phthalic acid synthetic resin paints, and the like.
Particularly quick-drying materials are suitable. This method can also be used as a handheld spray can. It can also be used as a part of the mechanism of a braille typewriter or a braille printing machine to produce a large amount of braille. At this time, a pressure type product by an air compressor is suitable.

[0020]

Since the present invention is configured as described above, it has the following effects.

According to the first aspect of the present invention, the engraved portion of the Braille paper is adhered or impregnated with a hardening agent in a liquid or mist state and then solidified, thereby significantly improving the abrasion resistance of Braille. You can

A second aspect of the present invention relates to a braille engraving tool for engraving braille for producing the braille of the first aspect.
A needle portion for engraving, a hardener reservoir for impregnating and solidifying the hardened agent liquefied at the time of engraving into the engraved portion of Braille paper, and
A passage for guiding the liquid agent to the tip of the engraved portion is provided.
With this method, braille with excellent abrasion resistance can be produced in the same number of steps as when producing conventional braille.

A third aspect of the present invention relates to a Braille curing tool for producing Braille by impregnating and solidifying a liquefied curing agent into an inscription portion of a Braille paper after the usual inscription in order to produce the Braille according to the first aspect. , A curing agent storage section, a contact section that contacts the engraved section, and means for guiding the liquid agent from the curing agent storage section to the contact section. With this method, it is possible to improve the abrasion resistance of Braille already produced by the conventional method.

According to a fourth aspect of the present invention, in order to produce the braille according to the first aspect, the braille curing is carried out by spraying or impregnating the atomizing portion of the braille paper with the sprayed hardener after the usual inscription. It relates to a tool, and is provided with a curing agent storage section, an atomization section, and a spray gas delivery means. With this method, similarly to the third aspect, it is possible to improve the abrasion resistance of Braille already produced by the conventional method. It is also suitable for creating large amounts of Braille.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing an embodiment in which a liquefied curing agent is delivered from the tip of a brush.

FIG. 2 is a perspective view showing an embodiment in which a liquefied curing agent is sent out from the tip of a brush.

FIG. 3 is a vertical cross-sectional view showing an embodiment in which a hardener is impregnated by sliding a required portion of a sheet of paper after a normal braille marking.

FIG. 4 is a perspective view showing an embodiment in which a hardener is impregnated by sliding a required portion of a sheet of paper after normal braille marking.

[Explanation of symbols]

 1 Braille curing tool main body 2 Braille curing tool upper lid 3 Curing agent container 4 Curing agent container upper lid 5 Heating element 6 Heating element electrode 7 Needle portion 8 Curing agent passage 9 Curing agent 10 Electric heating terminal 11 Curing agent outflow adjustment net 12 Insulating material 13 Contact part felt 14 Contact part holding part

Claims (4)

[Claims] 1. A high durability Braille which is characterized in that a marking agent of Braille paper is adhered or impregnated with a curing agent which is melted, dissolved or atomized and then solidified. 2. A needle portion for engraving braille paper, a hardener reservoir for impregnating and solidifying a hardener melted or dissolved at the time of engraving into the engraved portion of braille paper, and the liquid agent is guided to the tip of the needle portion. The braille engraving tool for engraving Braille according to claim 1, wherein the braille engraving tool is provided. 3. A curing agent storage part for impregnating and solidifying a curing agent melted or dissolved after a normal engraving into a marking part of Braille paper, a contact part in contact with the marking part, and the same liquid agent from the curing agent storage part. The braille hardening tool for producing Braille according to claim 1, characterized in that it comprises means for guiding to the contact portion. 4. A hardening agent reservoir for atomizing and adhering a hardening or melting agent, which has been melted or dissolved after the usual marking, to the marking part of Braille paper by spraying, an atomizing part, and a gas supply means for spraying. A braille hardening tool for producing the braille according to claim 1.