JP7108097B2 - marking pen - Google Patents

Description

The present invention relates to marking pens. More particularly, it relates to a marking pen that stores ink in a barrel and supplies the ink to a pen body at the tip of the barrel via an ink guide member.

Conventionally, in Patent Document 1, a notch is formed by leaving two or more vertical ribs in the cylindrical middle part of a ball-point pen tip to which a ball is rotatably attached to the tip, and a notch is formed to lead ink into the tip. A ball-point pen is disclosed in which an ink relay core is installed inside and the base of the tip is attached to the body of the barrel.

Japanese Utility Model Publication No. 59-016227

The ball-point pen of Patent Document 1 has poor material selectivity because the flexibility of the cylindrical portion (corresponding to the holder portion of the present application) cannot be obtained unless the longitudinal rib forming portion is made of resin. In addition, since the relay core (corresponding to the ink guide core of the present application) is in contact with the inner surface of the cylindrical portion (corresponding to the inner surface of the holder portion of the present application) and the inner surface of the vertical rib, when the cylindrical portion is elastically deformed, the tip ( (corresponding to the pen body of the present application) and the tip of the relay core may become unstable.

The present invention is intended to solve the above-mentioned conventional problems. It is possible to impart flexibility to the holder portion regardless of the specific material, and when the holder portion is elastically deformed, the pen body and the ink will be separated from each other. To provide a writing utensil in which the contact state with the vicinity of the tip of an induction lead is stable.

The first invention of the present application is
A marking pen that stores ink in a barrel and supplies the ink to a pen body at the tip of the barrel via an ink guide core,
A cylindrical holder part for holding the pen body at the tip part is provided at the tip part of the barrel,
A plurality of notches opening radially outward and radially inward are formed at different positions in the axial direction in a side wall of the holder portion rearward of the pen body holding portion of the holder portion and forward of the tip of the barrel,
A collar portion is formed between the notches of the holder portion,
The collar portions of the holder portion are connected to each other by a connecting portion,
A requirement is that the ink guide core is connected to the pen body.

The marking pen of the first invention,
A plurality of notches opening radially outward and radially inward are formed in the holder side wall (flexibility imparting portion) behind the pen body holding portion of the holder portion and in front of the tip of the barrel. Formed at different positions, flange portions are formed between the notches of the holder portion, and the flange portions of the holder portion are connected to each other by connecting portions, thereby providing a strong holder portion with high flexibility. The entire writing surface is in contact with the paper surface during writing, and stable writing performance can be obtained.

The second invention of the present application is
The pen body has an inner hole that opens rearward,
The tip of the ink guide wick is
It is required to be inserted into the inner hole of the pen body.

The marking pen of the second invention is
Since the tip of the ink guide core is inserted into the inner hole of the pen body, the ink guide core can reliably contact the pen body even when the holder part is bent, and the entire pen body can be covered sufficiently. The ink spreads quickly and stable writing performance is obtained.

The third invention of the present application is
The ink guide wick comprises:
It is required that the brim portion is not in contact with the inner surface of the holder portion.

The marking pen of the third invention is
Since the ink guide core is not in contact with the inner surface of the holder portion of the flange, the ink guide core does not bend along the bent inner surface of the holder portion even when the holder portion is bent. The contact state of the rear end of the pen body is properly maintained, and more stable writing performance can be obtained.

The fourth invention of the present application is
The holder part is required to be made of resin.

The marking pen of the fourth invention is
Since the holder part is made of resin, it is possible to impart greater and appropriate flexibility to the holder part.

The fifth invention of the present application is
A marking pen that stores ink in a barrel and supplies the ink to a pen body at the tip of the barrel via an ink guide core,
A cylindrical holder part for holding the pen body at the tip part is provided at the tip part of the barrel,
At least one or more helical notches opening radially outward and radially inward are formed in the side wall of the holder part behind the pen body holding part of the holder part and in front of the tip of the barrel,
connecting portions are formed between the cutouts of the holder portion;
A requirement is that the ink guide core is connected to the pen body.

The marking pen of the fifth invention is
At least one or more helical notches opening radially outward and radially inward are formed in the side wall of the holder part behind the pen body holding part of the holder part and in front of the tip of the barrel, By forming connecting portions (or collar portions) between the notches of the holder portion, it is possible to impart high flexibility to the strong holder portion, and the entire writing surface is in contact with the paper surface during writing. , stable writing performance is obtained.

The marking pen of the present invention is
High flexibility can be imparted to the strong holder portion, and the entire writing surface is in contact with the paper surface during writing, making it possible to obtain stable writing performance.

1 is a diagram of a first embodiment of a marking pen with a holder part according to the invention; FIG. FIG. 2 is an enlarged vertical cross-sectional view of a main portion of FIG. 1; It is the (a) front view and (b) bottom view near the holder part of the 1st Embodiment of this invention. FIG. 4 is an enlarged longitudinal sectional view of a main portion of FIG. 3; FIG. 5 is a cross-sectional view (AA) and a cross-sectional view (BB) taken along a line AA and a line BB in FIG. 4; 1 is an enlarged perspective view of a main part of a first embodiment of the invention; FIG. It is the (a) front view and (b) bottom view near the holder part of the 2nd Embodiment of this invention. FIG. 6 is an enlarged perspective view of a main portion of a second embodiment of the present invention; It is the (a) front view and (b) bottom view near the holder part of the 3rd Embodiment of this invention. FIG. 10 is an enlarged longitudinal sectional view of a main portion of FIG. 9; FIG. 11 is a (CC) cross-sectional view, a (DD) cross-sectional view, and a (EE) cross-sectional view taken along the cutting lines CC, DD, and EE of FIG. 10; FIG. 11 is an enlarged perspective view of a main portion of a third embodiment of the present invention; It is the (a) front view and (b) bottom view near the holder part of the 4th Embodiment of this invention. FIG. 14 is an enlarged longitudinal sectional view of a main portion of FIG. 13; FIG. 14 shows (FF), (GG) and (HH) cross-sectional views taken along cutting lines FF, GG and HH of FIG. 14; FIG. 11 is an enlarged perspective view of a main part of a fourth embodiment of the present invention; It is the (a) front view and (b) bottom view near the holder part of the 5th Embodiment of this invention. FIG. 18 is an enlarged longitudinal sectional view of a main portion of FIG. 17; FIG. 19 is a cross-sectional view (II), a cross-sectional view (JJ) and a cross-sectional view (KK) taken along the cutting lines II, JJ and KK of FIG. 18; FIG. 11 is an enlarged perspective view of a main portion of a fifth embodiment of the present invention; FIG. 11 is an enlarged vertical cross-sectional view of a main part of a sixth embodiment of the present invention;

An embodiment of the marking pen of the present invention is shown in FIGS. 1 to 21. FIG.

<First embodiment>
1 to 6 show a first embodiment of the present invention.
The marking pen 1 of the present embodiment includes a pen body 3, an ink retaining member 5, a holder portion 4 that couples the pen body 3 and the ink retaining member 5, a barrel 21 that directly accommodates ink, a barrel It consists of a writing utensil body 2 equipped with an ink guide core 6 for guiding ink in 21 to a pen body 3.

- Mandrel The mandrel 21 is a cylindrical body with an open front end and a closed rear end obtained by injection molding of synthetic resin. The inner surface of the front end opening 21 a of the barrel 21 is fitted with the ink retaining member 5 .

Ink Storage Portion The ink storage portion 21b is formed inside the shaft tube 21 which is a bottomed cylindrical body having an open front end and a closed rear end. Four axially extending ribs 21c are integrally formed at equal intervals on the inner peripheral surface of the ink containing portion 21b. The rib 21c also serves as a stopper for the ink retaining member 5. As shown in FIG.

・Pen Body The pen body 3 consists of a cylindrical body obtained by resin-processing polyester fibers. The pen body 3 has tapered inclined surfaces 32 on both sides of the writing tip 31 and a fitting portion 33 at the rear end. The pen body 3 has an inner hole 33a that opens rearward, and the ink guide core 6 is inserted into the inner hole 33a.

The pen body 3 is a resin-processed body of polyester fiber, a fiber bundle heat-sealed body, a felt-processed body, a fountain pen type plate-like pen body having a slit at the tip, a writing brush pen body, a porous synthetic resin. It may also be a pen body of a marking pen comprising a foam body, an extruded body of synthetic resin having an ink guide path in the axial direction, or the like.

Ink guide lead The ink guide lead 6 is inserted into the inner hole 33 a of the pen body 3 . The ink guide wick 6 may be of any type as long as it has an ink lead-out path in the axial direction having capillary force. In this embodiment, a rod-shaped body obtained by resin-processing fibers is employed. Other examples include porous bodies and rigid resin extruded bodies.

The ink guide wick 6 is not in contact with the inner surface 44 of the holder part. As a result, even when the holder portion 4 is bent, the ink guide core does not bend along the bent inner surface 44 of the holder portion. , more stable writing performance can be obtained. For the same reason, it is preferable that the ink guide wick 6 is inserted in the deepest part of the inner hole 33a without coming into contact therewith.

Ink Reserving Member The ink reserving member 5 is a member that temporarily holds excess ink in response to an increase in pressure inside the ink containing portion 21b. The ink reserving member 5 includes an ink reserving portion 51 (comb groove portion) made up of a plurality of comb teeth, a rear end of the ink reserving portion 51 (that is, a rear end surface of the rear end comb tooth 52), and an area in front of the front end of the ink reserving portion 51. The mounting portion 53 projecting outward is made of an integrally formed synthetic resin (for example, ABS resin) injection molded body. A shaft center hole 54 extending in the axial direction and having both ends opened is provided at the shaft center of the ink reservoir member 5 . The ink guide wick 6 is inserted into the axial hole 54 . The holder portion 4 is attached to the attachment portion 53 . In addition to the configuration, the ink retaining member 5 according to the present invention may be configured such that the ink retaining portion 51 is formed of a spiral groove or a labyrinthine groove, or the ink retaining portion 51 is formed of a fiber material or a porous material. Either can be used.

The ink guide wick 6 is inserted into the axial hole 54 . The front end of the ink guide core 6 is connected to the pen body 3 , and the rear end of the ink guide core 6 is substantially aligned with or protrudes from the rear end surface of the ink reservoir member 5 .

·Holder part The holder part 4 is made of, for example, a metal processed member or a cylindrical body obtained by injection molding of synthetic resin. The inner surface of the pen body holding portion 41 on the front side of the holder portion 4 and the outer surface of the pen body 3 are fitted together, and the inner surface of the main body mounting portion 42 on the rear side of the holder portion 4 and the mounting portion 53 of the ink retaining member 5 are fitted together. Further, it is more preferable that the holder portion 4 and the mounting portion 53 (the ink retaining member 5) are integrally molded to reduce the number of parts.

The holder part 4 may be made of metal or a synthetic resin material. Examples of the synthetic resin material include polypropylene, polyethylene, polystyrene, polycarbonate, polyethylene terephthalate, polyacetal, acrylic, nylon, acrylonitrile-styrene copolymer resin ( AS resin), acrylonitrile-butadiene-styrene copolymer resin (ABS resin) and other relatively hard synthetic resins. Moreover, if it is a metal, an aluminum alloy can be illustrated.

A plurality of semicircular cutouts 43a opening radially outward and radially inward are formed in the holder side wall 43 behind the pen body holding portion 41 of the cutout holder portion 4 and in front of the main body mounting portion 42. They are formed at different positions in the direction, and a flange portion 43b is formed between the cutouts 43a. That is, the notch 43a penetrates from the holder side wall 43 to the holder inner surface 44. As shown in FIG. Further, the flange portions 43b are connected to each other by a connecting portion 43c.

A plurality of cutouts 43a are formed in the holder portion side wall 43 of the holder portion 4 at different positions in the axial direction. You can give it character.

As shown in Figure 3,
When the notch 43a that penetrates the writing surface 34 perpendicularly to the long side direction X and opens in the long side direction X is provided, the holder part 4 can be given flexibility in the long side direction X of the writing surface 34. can.

Since the holder part 4 can be given flexibility in the long side direction X of the writing surface 34, the person who writes does not need to put the writing surface 34 along the surface of the paper by himself, and the writing tip part 31 is not excessively attached. Since writing pressure is not applied, it is possible to prevent the writing tip 31 from being crushed, and it is possible to obtain good handwriting more easily.

Further, since the collar portions 43b are connected to each other by the connecting portion 43c, the pen body 3 is bent with the connecting portion 43c as a fulcrum, and the holder portion 4 can be provided with higher flexibility.

<Second embodiment>
A second embodiment of the present invention is shown in FIG. 7 or FIG.
As shown in Figure 7,
When the notch 43a that penetrates the writing surface 34 perpendicularly in the short-side direction Y and opens in the short-side direction Y is provided, the holder part 4 can be given flexibility in the short-side direction Y of the writing surface 34. can.

By imparting flexibility in the short side direction Y of the writing surface 34 to the holder part 4, excessive writing pressure is not applied to the writing tip 31, so that the writing tip 31 can be prevented from being crushed. In addition, the writing feeling becomes softer than when the holder portion 4 is not flexible, and the writing feeling can be arbitrarily set by adjusting the dimensions and the number of the cutouts 43a.

<Third embodiment>
9 to 12 show a third embodiment of the invention.
As shown in Figure 9,
A notch 43a penetrating perpendicularly to the long-side direction X of the writing surface 34 and opening in the long-side direction X and a notch 43a penetrating perpendicularly to the short-side direction Y of the writing surface 34 and opening in the short-side direction Y are axes. When they are formed alternately in the direction, the holder part 4 can be given flexibility in all directions of the radial direction and the axial direction.

By giving the holder part 4 flexibility in all directions of the radial direction and the axial direction, the entire surface of the writing surface 34 contacts the paper surface when writing, and stable writing performance is obtained, and the writing tip 31 is excessively flexible. Since excessive writing pressure is not applied, it is possible to prevent the writing tip portion 31 from being crushed. In addition, the writing feeling becomes softer than when the holder portion 4 is not flexible, and the writing feeling can be arbitrarily set by adjusting the dimensions and the number of the cutouts 43a.

<Fourth Embodiment>
13 to 16 show a fourth embodiment of the invention.
As shown in Figure 13,
A deformed notch 43a penetrating perpendicularly to the long-side direction X of the writing surface 34 and opening in the long-side direction X, and a deformed notch 43a perpendicularly penetrating the writing surface 34 in the short-side direction Y and opening in the short-side direction Y. When the notches 43a are formed alternately in the axial direction, the same flexibility as in the third embodiment can be imparted to the holder part 4, and the same effect can be obtained.

The notch 43a can be set in any shape as long as it can impart flexibility to the holder part 4, regardless of the shape of the band.

<Fifth embodiment>
17 to 20 show a fifth embodiment of the invention.
As shown in Figure 17,
When at least one spiral notch 43 opening radially outward and radially inward is formed in the holder side wall 43, that is, at least one notch 43a is formed in the holder side wall 43. In the case of carving, the same flexibility as in the third embodiment can be imparted to the holder part 4, and the same effect can be obtained.

When the notch 43a is threaded in the holder side wall 43, a spiral connecting portion 43c (or flange portion 43b) is formed.

<Sixth Embodiment>
Flexibility restraining member Fig. 21 shows a sixth embodiment of the present invention.
The flexibility suppressing member 7 is made of, for example, a metal processing member or a cylindrical body obtained by injection molding of synthetic resin. Further, by fitting the flexibility suppressing member 7 to the holder portion 4 as shown in FIG. 21, the flexibility imparted to the holder portion 4 can be suppressed.

Further, by attaching and detaching the flexibility suppressing member 7, the presence or absence of flexibility of the holder portion 4 can be arbitrarily set. Further, when the flexibility suppressing member 7 itself has flexibility, it can be changed to an arbitrary flexibility by attaching the flexibility suppressing member 7 to the holder portion 4 .

1 Marking pen 2 Writing instrument main body 21 Axle tube 21a Front end opening 21b Ink storage part 21c Rib 3 Pen body 31 Writing tip part 32 Tapered inclined surface 33 Fitting part 33a Inner hole 34 Writing surface 4 Holder part 41 Pen body holding part 42 Main body Mounting portion 43 Holder portion side wall 43a Notch 43b Collar portion 43c Connecting portion 44 Holder portion inner surface 5 Ink retaining member 51 Ink retaining portion 52 Rear end comb groove 53 Mounting portion 54 Shaft hole 6 Ink guide core 7 Flexibility suppressing member

Claims (6)

A marking pen that stores ink in a barrel and supplies the ink to a pen body at the tip of the barrel via an ink guide core,
The pen body has a fitting portion at the rear end,
A cylindrical holder part for holding the pen body at the tip part is provided at the tip part of the barrel,
The inner surface of the pen body holding portion in front of the holder portion and the fitting portion are fitted,
A stepped portion is formed behind the pen body holding portion, and the rear end of the fitting portion is in contact with the stepped portion,
A plurality of notches opening radially outward and radially inward are formed at different positions in the axial direction in the side wall of the holder portion behind the pen body holding portion and in front of the tip of the barrel. ,
A flange portion is formed between the notches of the holder portion,
The collar portions of the holder portion are connected to each other by a connecting portion,
A marking pen, wherein the ink guide core is connected to the pen body. The stepped portion has a chamfered portion that expands rearwardly.
The marking pen according to claim 1, characterized by: The pen body has an inner hole that opens rearward,
The tip of the ink guide wick is inserted into the inner hole,
3. A marking pen according to claim 1, wherein said ink guide core does not come into contact with the inner surface of said holder portion of said collar portion. The tip of the ink guide wick is inserted into the inner hole in such a manner that it does not contact the deepest part of the inner hole.
The marking pen according to claim 3, characterized by: The pen body
With a writing tip forward,
and a writing surface that contacts the paper surface when writing,
The writing tip has tapered slanted surfaces on both sides,
The notch penetrates perpendicularly to the long side direction of the writing surface and opens in the long side direction.
The marking pen according to any one of claims 1 to 4, characterized in that: The pen body
With a writing tip forward,
and a writing surface that contacts the paper surface when writing,
The writing tip has tapered slanted surfaces on both sides,
The notch penetrates perpendicularly to the short side direction of the writing surface and opens in the short side direction.
The marking pen according to any one of claims 1 to 4, characterized in that:

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