JP2002046386A - Heating metal type writing instrument for stereoscopic handwriting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that a visually handicapped person must utilize braille because characters, symbols, a picture or the like written by a conventional writing instrument such as a pencil, a ballpoint pen, a fountain pen or the like do not almost have a ruggedness on a writing surface of a sheet or the like so that the person cannot identify it merely by contacting the writing surface by a hand without visually confirming with the result that it is the same as no writing. SOLUTION: A resin or the like (17) which is solid at an ordinary temperature and melted by heating is used instead of an ink of the writing instrument. Heaters (2) and (3) are assembled in the instrument (the drawing) to a structure in which the molten resin (17) is molten out from a tip (4) of the instrument (the drawing). The molten resin or the like is adhered to the writing surface, then cooled and solidified at the ordinary temperature in a short time and has a high viscosity so that a stereoscopic character, symbol, picture or the like can be expressed. Accordingly, a written matter can be identified merely by contacting the matter by the hand.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a writing instrument which makes it possible to obtain a three-dimensional handwriting which can be distinguished only by touching with a hand.

[0002]

For people who are visually impaired, the inability to distinguish characters, symbols, pictures, etc., written on paper or the like is a major problem in everyday life. Braille is one of the means by which visually impaired people can distinguish characters, but it takes time and is complicated to hit braille. In addition, Braille can be identified only by a small number of people besides visually impaired people who have learned Braille.

[0003] People who are visually impaired really want a means and a writing instrument that can communicate freely with ordinary people who do not know Braille through ordinary characters. It is a writing instrument that can take notes, and not only visually impaired people, but also visually. For that purpose, writing instruments that can leave three-dimensional handwriting are indispensable.

[0004] Therefore, when trying to produce a writing instrument that leaves three-dimensional handwriting, the viscosity and quick-drying properties of the ink become problems. In general, a writing instrument has almost no thickness in its handwriting. Conventionally, a liquid having fluidity at room temperature such as a fountain pen, a ballpoint pen, and Magic (registered trademark) is used, or a pencil, chalk, or the like is used. Solids have been used. For liquids, it is necessary that the thickness of the handwriting be thin to enable quick drying, and for solids, the writing mechanism that uses friction with the writing surface,
Handwriting remains only on the thickness of the writing surface. Thus, it is impossible to leave a three-dimensional handwriting with a conventional writing instrument.

[0005]

According to the present invention, in order to leave a three-dimensional handwriting, a thermoplastic material or a material having a melting point higher than room temperature and having a viscous A substance that becomes a high liquid or gel (hereinafter, referred to as a fusible ink) is used by being mounted inside the writing instrument. A heating device is provided inside the writing instrument, and when writing, the heating device is operated to change the fusible ink into a fluid state, and the writing instrument is discharged from the pen tip to write the writing instrument. Has been realized.

At this time, even if the meltable ink is heated to increase its fluidity, it has a high viscosity, so that the soluble ink discharged from the pen tip rises on the writing surface unlike the ink of a general writing instrument. Fixes, cools at room temperature and solidifies rapidly. By using a soft fusible ink, the writing surface, for example, characters, symbols, pictures, etc. drawn on paper can flexibly follow the bending of the paper, and the characters etc. bend and peel from the paper surface. There is no.

The heating device supplies current to the heater wire from a battery, but it is also conceivable to obtain electric power from an AC power supply or to use heat generated by a chemical reaction. In any case, it is necessary to provide a heat insulating structure in the outer case portion of the writing implement so that heat generated by the heating device is not easily transmitted to the grip on the surface of the writing implement.

Also, due to the viscosity of the fusible ink inside the writing instrument according to the present invention, a mechanism for pushing out the fusible ink from behind by a spring or the like is necessary for discharging the fusible ink. The control of the spring and the like is preferably linked with the power supply of the heating device.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION A heating / melting writing instrument for three-dimensional handwriting equipped with a heating device using a rechargeable battery as a power source was manufactured by using polyurethane as a fusible ink to be mounted inside the writing instrument according to the present invention. Examples written on paper are shown below.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A meltable ink (17) used in place of the ink of a general writing instrument is mounted (1) on a writing instrument according to the present invention as a hollow structure (18). When the switch (11) is turned on, current is supplied from the battery (10), and the external heater (2) is heated. The outer heater (2) heats the outside of the fusible ink (17) through the inner wall (5), and the inner heater (3) is the inner heater cover (6).
To heat the cavity (18) side of the fusible ink (17). As described above, by simultaneously heating not only the outside of the meltable ink (17) but also the cavity (18) side, the meltable ink (17) can have fluidity in a short time.

In this embodiment, a rechargeable battery (10) is used as a power source and portability is emphasized. However, if long-time writing is emphasized, the outside of the writing implement is charged as shown in FIG. It is also possible to provide a battery (12) and a DC cord (13), and make the AC plug and the AC cord detachable from the rechargeable battery (12). It is also possible to use a household AC power supply directly.

Next, a fusible ink having fluidity (1)
7) is pushed out toward the pen tip (4) by the spring and the pushing surface (7) installed inside the writing instrument according to the present invention, and is discharged from the pen tip (4).

Here, using the writing instrument according to the present invention,
When the line (20) is drawn as shown in (FIG. 4), the cross section of the line (20) becomes as shown in (FIG. 5), and is rapidly cooled and solidified by the space (19) and the outside temperature. At this time, the fusible ink (17)
Is made of polyurethane, its melting point is sufficiently high with respect to the outside temperature, and the written line (20), that is, the handwriting, not only rapidly cools and solidifies, but also melts even when exposed to direct sunlight. The stability of the handwriting increases because it is difficult to perform.

[0014]

According to the writing implement of the present invention, a three-dimensional handwriting having a cross section as shown in FIG. 5 can be drawn. Therefore, even a visually impaired person can determine the drawn handwriting. This makes it possible for a visually impaired person to use the three-dimensional handwriting drawn by using the writing instrument according to the present invention as a means of communication instead of the conventional Braille.

Further, the handwriting drawn by the writing instrument according to the present invention is significantly different from the handwriting drawn by a conventional general writing instrument in the shape of three-dimensionality, and therefore, it can be used for design, painting and the like. At this time, it is considered that the meltable ink is widely used because it is easy to color various colors.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an internal structure of a writing instrument main body having a power supply therein according to the present invention.

FIG. 2 is a cross-sectional view showing an internal structure of a writing instrument main body having an external power supply according to the present invention, and a schematic view of an external power supply.

FIG. 3 is a diagram showing a form of a fusible ink used by being mounted inside a writing instrument according to the present invention.

FIG. 4 is a perspective view when a character is written on a paper surface using the writing instrument according to the present invention.

FIG. 5 is a cross-sectional view of a case where characters are written on paper using the writing implement according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 The part to which fusible ink is mounted 2 External heater 3 Internal heater 4 Nib 5 Inner wall 6 Internal heater cover 7 Extrusion surface 8 Spring 9 Insulation cover 10 Dry or rechargeable battery 11 Switch 12 Rechargeable battery 13 DC cord 14 Detachable Structure 15 AC cord 16 AC plug 17 Meltable ink 18 Cavity inside meltable ink 19 Paper 20 Line drawn with meltable ink

Claims (2)

[Claims] 1. A thermoplastic material (1) instead of ink.
7) is mounted inside the writing implement (1), and heating devices (2) and (3) are provided inside the writing implement.
7) The thermoplastic material (17) is made to have fluidity by heating, discharged from the pen tip (4), fixed on the writing surface (19), and cooled at room temperature to obtain three-dimensional handwriting. (2
Writing implement that can obtain 0). 2. A writing implement capable of obtaining a three-dimensional handwriting (20) in the same manner as in claim 1, using a substance having a melting point higher than room temperature instead of the thermoplastic substance (17) in claim 1. .