JPH0952486A - Writing tip and fountain pen - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fountain pen with which lines having different thicknesses can be drawn by a single writing tip and writing with a line having an optional thickness is possible. SOLUTION: Writing is performed with a top point 7 of a curved pointed part 3A by holding a pen barrel 1 and inclining it to a predetermined angle. In this case, a line thins the most. Without changing the holding state, the angle of the pen barrel 1 to a paper is made smaller than its angle so as to make a bent part 6 butt against the paper. The thickest line can be drawn with the bent part 6. Writing with the bent part 6 is useful, for example, for drawing an underline and smearing. By writing with an optional part of the pointed part 3A, a line of optional thickness which is intermediate of thicknesses at two points can be drawn.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pen tip capable of writing on at least two parts and an improvement of a fountain pen using the pen tip.

[0002]

2. Description of the Related Art Conventional pen tip structures include, for example, Japanese Utility Model Publication No. 3-50486 and Japanese Utility Model Publication No. 5-70975.
Those described in Japanese Patent Publications and the like are known. Each of the nibs shown in these publications is formed in a tapered shape, and an ink guide slit extends toward the tip. Therefore, when writing with this pen tip, the pen shaft is gripped and the tip of the pen tip is pressed against the writing paper.
The ink is guided to the tip through the slit and is guided to the surface of the writing paper.

[0003]

However, such a conventional nib has a structure having a single writing contact portion, and only writing with a single line of thickness is possible. could not. Even if you apply force to the tip of the pen to spread the tip of the slit and write, you can only draw a slightly thick line. In addition to the diversification of writing instruments in recent years, there has been a demand for even pen and fountain pens to be drawn with thick lines when drawing, for example, underlining or filling. Therefore, the conventional pen tip cannot fully meet the demand for drawing lines with such different thicknesses.

[0004]

OBJECTS OF THE INVENTION It is an object of the present invention to be able to draw lines of different thickness with a single nib. An object of the present invention is to provide a fountain pen capable of writing with a line having an arbitrary thickness.

[0005]

According to a first aspect of the present invention, there is provided a pen tip having a tapered shape and an ink guide slit extending toward the tip, the tip end of which is directed outward. By bending, the pen tip is configured so that writing can be performed on each of the tip and the bent portion.

According to a second aspect of the invention, the tip portion is
The pen tip according to claim 1, wherein the pen tip has a plurality of bent portions, and at least three portions are configured to allow writing.

The pen tip according to a third aspect is the pen point according to the first aspect, wherein the tip side portion is curved with respect to the bent portion, and writing is possible at the curved portion.

According to a fourth aspect of the present invention, there is provided a pen tip which is tapered and has an ink guide slit extending toward the tip, and the tip of which is bent outward.
It is a fountain pen with a pen shaft that supports this nib.

[0009]

With the pen tip according to the present invention, both the tip and the bent portion can be written. in this case,
The slit width at the tip is smaller and narrower than that at the bent portion.
Therefore, it is possible to write lines having a plurality of thicknesses using a single pen tip. Similarly, even with a fountain pen, it is possible to draw thin letters and lines at the tip, and to write thicker lines and letters at the bent portion. In addition, in these writings, if writing is performed in each part, it is possible to write with a line of each thickness and stable thickness, regardless of the writing pressure. In particular, by curving the tip side from the bent portion, the thickness of the line can be continuously changed to an arbitrary thickness.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a pen tip according to the present invention will be described below with reference to the drawings. 1 to 3 are views showing a pen tip portion of a fountain pen according to an embodiment of the present invention. In these figures, 1 is a pen shaft, and a pen tip 2 is fixed to the tip thereof. The pen tip 2 is a metal (stainless steel or the like) plate material, and is formed to be curved with a predetermined curvature in the width direction. Specifically, a band-shaped member having a predetermined thickness is curved so as to form a part of a cylinder centered on an axis extending in parallel with the lengthwise direction, and further,
One end side (tip side) thereof is cut into a tapered shape in a triangular shape.

The tapered tip portion 3 is provided with an ink guiding slit 4 extending toward the apex thereof. That is, a circular hole 5 for ink storage is formed in the center of the tip portion 3 in the width direction, and a slit 4 having a slight width is formed from the circular hole 5 to the tapered apex 7. Of. Therefore, in this fountain pen, the ink supply unit (eg, cartridge) built in the pen shaft 1
Ink is supplied to the circular hole 5 through a supply pipe (not shown), and is guided to the writing section by being guided to the slit 4 by the capillary phenomenon.

In the tip portion 3, the tip side portion 3A is bent and bent at a predetermined angle toward the outside of the center of curvature. Further, the tip side portion 3A with respect to the bent portion 6 is formed by being curved with a predetermined curvature so that the center of curvature is located outside thereof. As a result, in the pen tip 2, innumerable writing portions are formed at two locations, the bent portion 6 and the tip apex 7 of the tip side portion 3A, and further in the curved tip side portion 3A.

When writing with the fountain pen having the above structure, the pen shaft 1 can be gripped and tilted at a predetermined angle to write at the apex 7 of the tip side portion 3A. In this case, the thickness of the line becomes thin. Then, without changing the gripped state, the angle of the pen shaft 1 with respect to the paper is made smaller than the above angle, and the bent portion 6 is brought into contact with the paper. As a result, a thicker line can be drawn at the bent portion 6 than in the case of writing at the apex 7. This is because when writing, the slit 4 is opened and a large amount of ink can be discharged from the apex 7. Writing on the bent portion 6 is useful for, for example, underlining and filling. Further, even when writing characters, it is suitable for address writing. In addition, it is possible to write at any position on the tip side portion 3A, and it is possible to write a line of any thickness.

In the above embodiment, the curved nib 2 is made of a curved metal plate whose tip is cut and formed in a triangular shape. However, the pen tip 2 is not limited to this. It can also be molded and used. It is also possible to form the pen tip by forming a flat plate member with a tapered tip and bending it at a predetermined angle.

In the present invention, it is also possible to form a plurality of bent writing parts by bending the tip end side portion at two or more places. As a result, three or more lines with different thickness can be drawn with one fountain pen.

[0016]

As described above, according to the present invention, since a plurality of writing parts are formed on the pen tip, one pen or fountain pen can be used without changing its holding manner.
You can easily draw multiple lines with different thickness. Further, such a useful nib can be manufactured by a simple improvement of a commercially available nib.

[Brief description of drawings]

FIG. 1 is a side view showing a pen tip according to an embodiment of the present invention.

FIG. 2 is a plan view showing a pen tip according to an embodiment of the present invention.

FIG. 3 is a perspective view showing a pen tip according to an embodiment of the present invention.

[Explanation of symbols]

 1 pen shaft, 2 pen tip, 3A tip side part (writing part), 4 slits, 6 bending part (writing part), 7 vertex (writing part).

Claims (4)

[Claims] 1. A pen tip having a tapered shape and an ink guide slit extending toward the tip, wherein the tip is bent outward so that each of the tip and the bent portion is formed. A pen tip that can be written on. 2. The tip portion has a plurality of bent portions,
The nib according to claim 1, wherein the pen tip is configured to be writable by at least three parts. 3. The tip side portion is curved from the bent portion,
The pen tip according to claim 1, wherein writing is possible at the curved portion. 4. A fountain pen having a tapered nib, which has an ink guide slit extending toward the tip, the tip of which is bent outward, and a pen shaft which supports the nib.