JP3284337B2 - Nib for marking pen - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nib for a marking pen.

[0002]

2. Description of the Related Art The pen point of a writing instrument such as a marking pen or the like is made of a synthetic resin fiber or the like converged in a rod shape to impart a capillary action and to draw out the ink loaded in the writing instrument body, thereby enabling writing. .

[0003] Further, with the spread of writing implements in which a fluorescent color ink is loaded in a main body, a user desires a pen tip capable of drawing a wide line. With the appearance of a nib in the so-called shape, the user can make a selection according to the application, and the work has become comfortable.

However, since the pen tip surface is usually exposed and the side surface of the pen tip is also an ink leaching surface, when a line is drawn using a ruler, the contact surface of the ruler with the pen tip becomes dirty. Was always there. In addition, if the same work is repeated with writing instruments of different ink colors in such a state, the pen tip side surfaces will also be soiled, and in order to avoid such inconvenience, remove the ink attached to the ruler for each work. The inconvenience of having to do so.

[0005]

SUMMARY OF THE INVENTION In view of the above circumstances, the present invention eliminates the adhesion of ink to the ruler during the drawing operation using a ruler and does not stain the pen tip of the marking pen used for the drawing. It is another object of the present invention to provide a nib in which the film thickness of the covering member and the diameter of the substrate portion are within a range that can be effectively used as a marking pen.

[0006]

In order to achieve the above object, a nib for a marking pen of the present invention has a fiber diameter of 1 to 1.
A 10-denier polyester synthetic fiber is bundled, impregnated with a synthetic resin-based adhesive, dried and solidified, and the pen tip portion composed of a solidified substrate portion is integrally coated with a thermoplastic synthetic resin together with the substrate portion. Set the thickness of the covering member to 0.
As. 01 to 2.00 mm, the ratio of the diameter of the film thickness and the substrate portion of the cover member 1: 4 to 1: with the 800, the substrate portion, a covering member made of synthetic resin for covering integrally polyethylene , polypropylene, and polyacetal, the thermoplastic synthetic resin <br/> such vinyl chloride or elastomeric rubber, and a synthetic resin-coated member obtained by integrally covering the substrate portion, intended to be transparent or colored there are, only substrate portion of the pen tip apex portion side of the pen tip of the substrate portion, than the synthetic resin covering member covering integrally
About 0.1mm~2.0mm protruding der made by is, further
The Ru der those which confer antimicrobial properties to the coating member.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, a fiber diameter of 1
A polyester pen of 10 denier is bundled, impregnated with a synthetic resin adhesive, dried and solidified on a pen tip for a marking pen having a solidified substrate portion, with a thickness of 0.01 to
Prevents ink from sticking to the ruler when drawing with a ruler by coating it with a 2.00 mm covering member made of a thermoplastic synthetic resin such as polyethylene, polypropylene, polyacetal, vinyl chloride, or elastomeric rubber. It becomes the pen tip for the marking pen which was done.

The polyester synthetic fiber used in the present invention has a fiber diameter of 1 to 10 denier, preferably 2 to 5 denier. When the fiber diameter is less than 1 denier, the space between the fibers when the fibers are bundled becomes dense, so that the flow of ink becomes worse. When the fiber diameter exceeds 10 denier, the fibers become less dense when bundled. Since the space generated between the fibers becomes sparse, it is difficult to control the flow of the ink, which is not preferable. In addition, it is preferable that the synthetic fiber is bundled, dried and solidified, and the substrate portion is formed by cutting the tip into a knife-cut shape, and has a diameter of 4 to 800 times, preferably 4 to 100 times the film thickness of the covering member. is there.

[0009] The thickness of the covering member used in the present invention, which is made of a thermoplastic synthetic resin such as polyethylene, polypropylene, polyacetal, vinyl chloride or elastomer rubber, is 0.01 to 2.00 mm, preferably 0.1 to 2.00 mm. 04 to 1.00 mm is good. If the thickness of the covering member made of a synthetic resin is less than 0.01 mm, a part that is not covered partially occurs, and when a line is drawn using a ruler, the covering member of the synthetic resin is broken, and its function is lost. When the synthetic resin-coated member is no longer formed and the thickness exceeds 2.00 mm, not only molding is difficult, but also errors occur due to the thickness of the coated member, and a line is drawn using a ruler. At this time, it is difficult to draw a line at the position desired by the user,
Not preferred. If the covering member is thinner than 0.01 mm and the substrate portion is smaller than four times the covering member, the strength as a writing member cannot be maintained together with the covering member, and the covering member is thicker than 2.00 mm. If the diameter of the substrate portion exceeds 800 times that of the covering member, it cannot be used as a member for writing or the like.

In order to prevent quality deterioration due to microorganisms during use and / or preservation, a marking tip for a marking pen having the substrate portion covered with a synthetic resin covering member is provided. There is no special restriction on the material as long as it gives the resin antibacterial properties,
Preferably a silver-based inorganic antibacterial agent carrying silver ions on various inorganic substances, for example, an antibacterial agent carrying ammine silver between layers of an inorganic layered compound such as montmorillonite, an antibacterial agent carrying silver ions on magnesium aluminosilicate An antibacterial agent in which silver ions are supported on zirconium phosphate by ion exchange, an antibacterial agent in which silver ions are supported on poorly soluble phosphate or condensed phosphate, and calcination after adsorbing and holding silver ions on hydroxyapatite The antibacterial agent and the like obtained as described above can be suitably used.

Further, one or a plurality of marks may be provided at any appropriate position on the surface of the covering member depending on the use of the nib for the marking pen.

[0012] This is because, when a user draws with a ruler in a normal use mode, the pen tip of the marking pen is oriented in the long axis direction of the writing surface of the pen tip with respect to the drawing direction, or A line is drawn in the short axis direction, and the writable writing line width that can be selected is two, but it is used by giving one or more marks at any appropriate position on the surface of the covering member If the user uses the mark given to the ruler at the time of drawing as a guide of the ruler, it becomes easy to select the width of the writing line written at the time of drawing as much as possible.

[0013] In the pen tip for marking pen, a film-shaped covering member made of synthetic resin, which covers the substrate portion integrally and also covers the pen tip portion formed in a knife-cut shape, is transparent or transparent. By using the same color as the marking pen, the color of the marking pen can be easily and reliably determined to prevent misuse. In addition, only the tip of the pen tip at the tip of the substrate portion To
In addition , the synthetic resin coating member that covers the substrate part integrally and also covers the pen tip is desirably flush with the drawing, but in a range that does not reduce the strength of the tip to enable writing,
By slightly protruding the substrate portion by 2.0 mm or less, it is possible to prevent the hardness of the substrate portion, particularly the pen tip portion, which is caused when the pen tip portion is largely protruded, and to give an appropriate hardness. And smooth writing over a long period of time.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a nib for a marking pen according to the present invention.

Basically, as shown in FIG. 1, a nib (1) for a marking pen according to the present invention is made by bundling, for example, polyester-based synthetic fibers having a fiber diameter of 1 to 10 denier and forming a synthetic resin-based adhesive. And a dried and solidified substrate portion (2), and a film-like covering member (3) for coating the substrate portion (2). The substrate portion (2) is usually referred to as knife cut. It consists of a pen tip ( 2a ) polished to a shape and a shaft (2b) connected to the pen tip ( 2a ) , and has a thickness of 0.01 to 0.01 mm on the outer periphery of the pen tip ( 2a ).
It is covered with a 2.00 mm thermoplastic synthetic resin coated member (3) such as polyethylene, polypropylene, polyacetal, vinyl chloride or elastomer rubber. At this time, the pen tip (2a) is covered with the covering member (3).
The covering member (3) is not pressed so much that its shape is deformed, and the covering member (3) is attached to the pen tip portion (2).
a) without being detached from a).

The above-mentioned thermoplastic synthetic resin covering member (3) such as polyethylene, polypropylene, polyacetal, vinyl chloride or elastomer rubber for covering the pen tip portion (2a) has a silver-based inorganic antibacterial agent. Is added, but there is no particular limitation, as long as it can impart antimicrobial properties that can prevent quality deterioration by microorganisms during use and / or storage.

As shown in FIG. 2, if the length of the long side (4) of the pen tip is m, the length of the short side (5) is n, and the writing line width is x, writing is possible. Write line width m ≧ x ≧ n
In order to easily select a writing line width within a writable range, as shown in FIG. 3, a covering member that covers a pen tip portion (2a) from a pen core writing portion central portion (6). Extension line L virtually drawn in the pen axis direction on the surface of (3)
_A mark (a) can be provided at the intersection of the front end surface (9) of the pen core gripping portion (8) with the mark 1, and as shown in FIG.
Nib apex nib section from (7) the front end surface of the extension line L ₂ and the pen core gripper drawn virtually the pen axis direction on the surface of (2a) covering member for covering the (3) (8) A mark (b) is given to the intersection with (9), and further, as shown in FIG. 5, a pen point (2) formed by the two marks, a-b
A mark (c) can be provided at the center of the arc on the surface of the covering member (3) covering a).

Further, the above-mentioned pen nib for a marking pen (1)
In the above, the substrate portion (2) is integrally coated, and is formed into a knife-cut shape to cover the pen tip portion (2a).
For example, by making the covering member (3) made of a thermoplastic synthetic resin such as polyethylene or polypropylene colorless and transparent or colored in the same color as the marking pen, the color possessed by the marking pen can be easily and reliably made by the user. is intended to be able to determine, on which can prevent misuse of the marking pen in use, the pen tip apex of the pen tip portion of the distal end of the substrate portion (2) (2a)
Only on the part (7) side, the substrate part (2) is integrally covered, and is about 0.1 mm to 2.0 mm thicker than the covering member (3) made of a thermoplastic synthetic resin such as polyethylene or polypropylene. It is desirable and this to slightly protrude, nib portion (2a) greatly protruded substrate portion caused when allowed (2), with in particular to prevent a reduction in hardness of the nib portion (2a), providing a suitable hardness This allows the user to write smoothly over a long period of time.

[0019]

As described above, the nib for the marking pen is covered with the above-mentioned thermoplastic synthetic resin covering member such as polyethylene, polypropylene, polyacetal, vinyl chloride or elastomeric rubber, and the substrate portion and the covering member are covered with each other. By limiting the ratio of diameter and film thickness, it is possible to effectively limit the ink leaching surface at the pen tip, so even if you draw a line using a ruler, the contact surface of the ruler with the pen tip is not stained, In each case, the inconvenience of removing the ink attached to the ruler can be avoided, and in particular, the range of the ratio of the diameter of the substrate portion to the film thickness of the covering member is limited, thereby clarifying the range of use as a marking pen. It has excellent effects that can be achieved.

[Brief description of the drawings]

FIG. 1 shows a nib for a marking pen showing an embodiment of the present invention.

FIG. 2 is a plan view of a nib for a marking pen showing an embodiment of the present invention.

FIG. 3 shows a marking pen nib in which a mark (a) is provided on the surface of a covering member (3) covering a pen tip portion (2a) in an embodiment of the present invention.

FIG. 4 shows a marking pen nib in which a mark (b) is provided on the surface of a covering member (3) covering the pen tip portion (2a) in the embodiment of the present invention.

FIG. 5 is a plan view of a marking pen nib in which a mark (c) is provided on the surface of a covering member (3) covering the pen tip (2a) in the embodiment of the present invention.

FIG. 6 illustrates a mode of use of an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pen tip for marking pen 2 Substrate part 2a Pen tip part 2b Shaft part 3 Covering member 4 Pen tip long side 5 Pen tip short side 6 Pen core writing part central part 7 Pen tip apex part 8 Pen core gripping part 9 Front end surface

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-53-25116 (JP, A) JP-A-56-164346 (JP, A) Japanese Utility Model Application Sho 59-162281 (JP, U) Japanese Utility Model Application 79588 (JP, U) JP-A 55-93580 (JP, U) JP-A 62-50992 (JP, U) JP-A 62-50993 (JP, U) Patent 2896883 (JP, B2) -66279 (JP, B2) Jikken Sho 59-39943 (JP, Y2) (58) Field surveyed (Int. Cl. ⁷ , DB name) B43K 1/12

Claims (1)

(57) [Claims] 1. A pen tip portion composed of a substrate part obtained by bundling polyester synthetic fibers having a fiber diameter of 1 to 10 denier, impregnating with a synthetic resin adhesive, drying and solidifying, and a thermoplastic resin together with the substrate part. Integrally coated with synthetic resin,
Assuming that the thickness of the covering member is 0.01 to 2.00 mm,
The ratio of the film thickness of the covering member to the diameter of the substrate portion is 1: 4 to 1: 8.
00, and a covering member made of a synthetic resin that integrally covers the substrate portion is a thermoplastic synthetic resin such as polyethylene, polypropylene, polyacetal, vinyl chloride, or an elastomer rubber , and the substrate portion is integrally formed. the synthetic resin-coated member obtained by coating, there is to be transparent or colored, pen tip of the substrate portion
A pen nib for a marking pen, which protrudes slightly by about 0.1 mm to 2.0 mm from a synthetic resin-coated member that integrally covers only the substrate portion on the vertex side of the pen tip.