JP2002019370A - Writing material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a writing material capable of observing simply the opposite side of the seeing direction of a nib and recognizing easily the terminal point of line drawing while capable of coping with both of marking and reading of a character after marking even in the writing material mounting ink high in the density of tint. SOLUTION: In the writing material A having the nib, the nib 10 is equipped with ink lead-out units 12, 12, capable of forming two pieces of writing lines, and a visible unit 11, permitting the see-through of a writing direction and arranged at a position immediately above a contacting part between the pen points of the nib 10 and a writing surface.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a writing instrument having a pen tip, and more particularly, to a liquid writing instrument of a type generally called a paint marker, an oily marker, an aqueous marker, or a fluorescent underline marker.

[0002]

2. Description of the Related Art Conventionally, in a writing instrument having a thick writing line such as a paint marker and a fluorescent underline marker, a portion hidden by a pen tip in a writing direction cannot be seen, so that a stop portion cannot be visually recognized. There were problems such as overdrawing of lines.

[0003] In order to solve such a problem, the present applicant has filed an application in Japanese Patent Application Laid-Open No. 2000-52682 with a writing instrument provided with a visible portion immediately above the writing portion. However, with this writing instrument, although the above-mentioned problem has been solved, a writing instrument equipped with an ink that tends to appear with a high hue density has a problem that, when marking on a character, the character is difficult to read due to the dark hue of the ink. There is. In addition, the purpose of marking characters is to make important parts of the text stand out and to easily determine the importance and the classification of contents by color coding, etc. For that purpose, the use of ink with high hue density is very important. It is.

[0004]

SUMMARY OF THE INVENTION The present invention is to solve the above-mentioned problems of the prior art, and it is intended to provide a writing direction when marking a character with a writing instrument having a thick writing line such as a fluorescent underline marker. A writing implement that eliminates the problem of not being able to see the part hidden by the pen tip, and also enables the marking of characters and the interpretation of the characters after marking to be compatible even with writing implements equipped with ink that tends to appear with high hue density The purpose is to provide.

[0005]

SUMMARY OF THE INVENTION In view of the above-mentioned conventional problems, the present inventor has sought to solve this problem. In a writing instrument having a pen point, the pen point has a specific structure. They found that the desired writing implement could be obtained, and completed the present invention. That is,
The present invention resides in the following (1) to (5). (1) In a writing instrument having a pen tip, the pen tip includes an ink lead-out portion in which two writing lines are formed, and a visible portion that can see a writing direction right above a contact portion of the pen tip with a writing surface. A writing implement characterized by comprising: (2) The writing implement according to (1), wherein the distance between the writing lines is 2 mm or more. (3) The writing implement according to the above (1) or (2), wherein the visible part is made of a transparent member. (4) The writing implement according to any one of the above (1) to (3), wherein a contact portion of the tip of the pen tip with the writing surface between the ink outlet portions is made of a flexible member having no capillary force. (5) Any of the above (1) to (3), wherein the contact portion of the tip of the pen tip with the writing surface between the ink outlet portions is made of a member having no capillary force, and is made of a material that is easy to repel ink. Writing instrument according to one of the above.

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows an embodiment of a writing implement A of a type in which ink is stored in an ink storage body 2 housed in a shaft cylinder 1 serving as a writing implement main body. This first
The pen tip 10 according to the embodiment is configured such that writing lines are
Ink forming portions 12 are provided at both side ends of the support member 11 so as to form the main portion.
The rear end portions of the ink storage units 2 and 12 are respectively inserted into the ink storage units 2. The support member 11 serves as a visible portion, and is made of a transparent resin or glass or the like that allows visual recognition of the writing direction, specifically, a parallel light transmittance of 30% or more, preferably a parallel light transmittance of 50% or more. And more preferably a parallel light transmittance of 7
It is composed of a member such as transparent resin or glass of 0% or more (hereinafter, also referred to as a “transparent member”). If the member is made of resin, glass, or the like having a parallel light transmittance of less than 30%, the writing direction cannot be clearly recognized, which is not preferable. Examples of the resin satisfying the physical properties include a styrene-isoprene resin, an ionomer resin, and S
BR-PP blend resin, acrylic resin, nylon resin, polymethylpentene, and the like can be given.

The ink lead-out section 12 is made of a polymer foam such as a sponge, a porous rubber body used for a permeation mark, a nonwoven cloth, a felt, a fiber bundle hardened with a resin, a metal, a ceramic, or the like. , A porous member such as a polymer sintered body, and these porous members (similarly in the following embodiments) are fitted, bonded by an adhesive, or welded. It is fixed to both ends of the support member 11. In addition, fitting grooves or the like may be provided at both ends of the support member 11 in order to further secure the ink lead-out portion 12. FIG. 2A shows the support member 11.
Adhesive 1 such as hot-melt type in the groove provided on both sides of
2 and 3 show examples of a pen tip to which the ink outlets 12 and 12 are fixedly attached. FIG. 2B shows an example of a pen tip in which the ink outlets 12 and 12 are inserted into insertion holes formed in the support member 11. .

Further, in FIG. 1, the front end surfaces of the support member 11 and the ink outlet portions 12, 12 are shown to have an inclination of 45 degrees or less with respect to the axial direction, but may be a plane.
These shapes are appropriately set according to usability such as writing. The distance between the ink outlets 12, 12, ie, the distance between the writing lines, depends on the size of the character to be marked, but is preferably 2 mm or more, and more preferably 3 mm or more. If the interval is less than 2 mm, the writing line is often formed on the character, which is not preferable. In particular, when an ink which has a high hue density and tends to appear is used, it is even more undesirable. Inks that tend to appear with a high hue density include inks that are conventionally used for underlining, such as purple and blue, which tend to appear strongly, and inks that are used for conventional markers such as blue, red, and green. (The same applies hereinafter). Further, the supporting member 11 serving as the visible portion
Is constituted by a lens member having a lens effect (the same applies to the following embodiments), it is possible to enlarge the field of view seen through.

In the writing implement having the pen tip 10 according to the first embodiment, when the writing implement A is normally written from left to right using the right hand, two writing lines are formed at predetermined intervals by the ink lead-out portions 12 and 12. And the ink deriving unit 1
Immediately above the portion to be the writing surface between 2 and 12 is a transparent member 1
Since it is a visible part that can see the writing direction by 1,
The right side of the pen tip is easy to see, so that the position of the right end point of the line can be easily specified, and both the marking on the character and the interpretation of the character after the marking can be made compatible. In particular, when an ink having a high hue density is used, marking on a character and reading of the character after the marking are excellent. In addition, when the border of the table is drawn on the imitation paper, when the horizontal writing material is used to mark a character with the above-mentioned writing tool with an underline or the like, or when used in a relatively narrow place such as a train or an airplane, remarkable usability is improved. Can be done.

FIG. 3 shows a modification of the first embodiment. The pen tip 20 of the second embodiment has substantially the same configuration as the pen tip 10 of the first embodiment, and the difference is that The visible portion of the member 11 is made into a window portion 21 through which the ink is drawn out, and the ink lead-out portions 12 and 12 are formed at a predetermined interval (the writing line width is a predetermined interval). The spacing member 22 to be formed is connected to the ink outlet 1
2 and 12 are different. Note that the same components as those of the pen tip of the first embodiment are denoted by the same reference numerals, and description thereof is omitted. Further, in the second embodiment, the writing direction can be visually recognized through the window 21 which is transparent, so that the spacing member 22 does not necessarily need to be made of a transparent resin or the like.

FIG. 4 shows a modification of the first embodiment. The pen tip 30 of the third embodiment has substantially the same configuration as the pen tip 10 of the first embodiment. A contact portion between the ink leading-out portions 12 and 12 at the leading end and the writing surface is formed by fitting, bonding, welding, or the like a flexible member 31 having no capillary force to the lower surface of the support member 11 serving as a visible portion. Are different. Note that the same components as those of the pen tip 10 of the first embodiment are denoted by the same reference numerals, and description thereof will be omitted. Examples of the flexible member 31 include a high-density sponge having no communication hole, a polymer sintered body, and the like. In the third embodiment, in addition to the effects of the above-described first embodiment, the arrangement of the flexible member 31 ensures that the ink lead-out portions 12 and 12 come into contact with the writing surface and that the grounding during writing is stable. And writing (marking) is further facilitated. Further, if the flexible member 31 is made of a member having no capillary force and is made of a material which is easy to repel ink, for example, a fluororesin (Teflon), a silicone resin, or the like, the ink deriving portions 12 and 12 are further improved.
This has the effect of eliminating the disturbance of the writing line due to ink stains on the members between.

FIG. 5 shows an embodiment of a writing instrument of the type having a valve (valve) mechanism. In the writing implement of the fourth embodiment, a valve mechanism 16 is provided between a pen tip 40 and an ink chamber (not shown) of a shaft cylinder 15 serving as a writing implement main body.
By pushing in the 0 direction, the valve stem 16a is retracted against the urging force of a spring (not shown) to release a valve portion (not shown), and ink is drawn out. Also,
When the viscosity of the ink is high or the components of the ink tend to settle, a stirring ball (not shown) may be built in the ink chamber. Reference numeral 16b denotes a valve seat portion, and 17 denotes an ink occluding body. FIG. 6 shows an embodiment of a writing instrument of a type having an ink reservoir (collector member). In the writing implement of the fifth embodiment, an ink reservoir 18 having a large number of fins is disposed between a pen tip 50 and an ink chamber (not shown) in a barrel 17 serving as a writing implement main body. An ink relay core 19 is provided at the center, and ink is supplied to the pen tip 50. Similarly to the pen tips of the first embodiment 10, the pen tips 40 and 50 of these writing utensils are configured such that the ink led out from the valve mechanism or the collector member is led to the ink lead-out parts 12 and 12 to derive the ink. The visible portion makes it easier to see the right side of the pen tip, so that the position of the right end point of the line can be easily specified, and both the marking on the character and the interpretation of the character after the marking can be made compatible.

As described above, the embodiment of the writing implement having various nibs has been described. However, the nib, which is the gist of the present invention, is not limited to the above-described embodiment. The embodiment can be applied in appropriate combination with a structure such as a writing implement main body shown in FIGS. 1 to 6 (a writing implement having a batting structure in FIG. 1, a writing implement having a valve structure in FIG. 5, and a direct liquid writing implement having a collector structure in FIG. 6). The configuration other than the pen tip, which is the gist of the present invention, is not particularly limited. The ink composition used for the writing implement of the present invention is not particularly limited, but is particularly effective for a writing implement using an ink which tends to appear with a high hue density as described above. Furthermore, instead of the ink, a liquid material such as a liquid cosmetic, a liquid medicine, a coating liquid, and a correction liquid is used, and a writing portion is used in accordance with the liquid material, for example, using an appropriately shaped coating member made of a porous member. It may be.

In the writing implement of each embodiment of the present invention configured as described above, when writing from left to right with the right hand, the pen tip has a visible portion in which the writing direction can be visually recognized. The right side of the pen tip is easy to see, and the position of the right end point of the line can be easily specified. This makes it possible to remarkably improve usability when drawing front borders on imitation paper, when filling horizontal writing with characters using an underline pen, or when using in relatively small places such as trains and airplanes. Becomes In addition, it is possible to achieve both marking on the character and interpretation of the character after the marking.

[0015]

According to the present invention, the opposite side of the pen tip in the viewing direction can be easily visually recognized, the end point of the drawing can be easily recognized, and the marking on the character and the interpretation of the character after the marking can be made compatible. A writing implement is provided. In particular, a writing instrument equipped with an ink which tends to appear with a high hue density has excellent marking on characters and legibility of the characters after marking.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a writing instrument according to a first embodiment of the present invention in a longitudinal sectional view.

FIGS. 2 (a) and 2 (b) are cross-sectional views showing examples of a pen tip which is the gist of the present invention, respectively, in a cross-sectional mode.

FIG. 3 is a schematic view showing a second embodiment of the writing instrument of the present invention in a longitudinal sectional view.

FIG. 4 is a schematic view showing a writing instrument according to a third embodiment of the present invention in a longitudinal sectional view.

FIG. 5 is a schematic view showing a writing instrument according to a fourth embodiment of the present invention in a longitudinal sectional view.

FIG. 6 is a schematic view showing a writing instrument according to a fifth embodiment of the present invention in a longitudinal sectional view.

[Explanation of symbols]

 A writing implement 10 pen tip 11 visible part 12 ink lead-out part

Claims (5)

[Claims] In a writing instrument having a pen tip, the pen tip includes an ink lead-out portion in which two writing lines are formed, and a visual direction directly above a contact portion of the pen tip with a writing surface. Writing implement characterized by having a part. 2. The writing implement according to claim 1, wherein the distance between the writing lines is 2 mm or more. 3. The writing instrument according to claim 1, wherein the visible portion is made of a transparent member. 4. The writing implement according to claim 1, wherein a contact portion of the tip of the pen tip with the writing surface between the ink outlet portions is made of a flexible member having no capillary force. 5. A contact portion between the ink outlet portion of the pen tip and the writing surface is made of a member having no capillary force, and
4. A material which is easy to repel ink.
The writing implement according to any one of the above.