JP2022040290A - Ball point pen - Google Patents

Ball point pen Download PDF

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Publication number
JP2022040290A
JP2022040290A JP2022005715A JP2022005715A JP2022040290A JP 2022040290 A JP2022040290 A JP 2022040290A JP 2022005715 A JP2022005715 A JP 2022005715A JP 2022005715 A JP2022005715 A JP 2022005715A JP 2022040290 A JP2022040290 A JP 2022040290A
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Prior art keywords
tip
holder
pen body
ink
pen
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JP7289941B2 (en
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嘉人 光崎
Yoshito Mitsusaki
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Pilot Ink Co Ltd
Pilot Corp
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Pilot Ink Co Ltd
Pilot Corp
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Priority claimed from JP2016250810A external-priority patent/JP7013126B2/en
Application filed by Pilot Ink Co Ltd, Pilot Corp filed Critical Pilot Ink Co Ltd
Priority to JP2022005715A priority Critical patent/JP7289941B2/en
Publication of JP2022040290A publication Critical patent/JP2022040290A/en
Priority to JP2023089347A priority patent/JP2023106581A/en
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Abstract

PROBLEM TO BE SOLVED: To provide a writing implement capable of providing flexibility to a holder with no need for the holder to be made of a specific material, as well as providing stability in a state of contact between a pen body and a part in a vicinity of a tip of an ink guide core when the holder is elastically deformed.
SOLUTION: A ball point pen stores an ink in a barrel, and supplies the ink to a pen body at a tip of the barrel through an ink guide core. A ball is rotatably held at a tip of the pen body. The ball point pen holds the pen body at the tip, and comprises a cylindrical holder at the tip part of the barrel. Multiple notches open toward radially outward and radially inward are formed at axially different positions in a side wall of the holder behind a part holding the pen body of the holder and in front of the tip part of the barrel. Flange parts are formed between respective adjacent ones of the notches in the holder. Adjacent ones of the flange parts of the holder are connected via connection parts. The ink guide core is connected with the pen body.
SELECTED DRAWING: Figure 1
COPYRIGHT: (C)2022,JPO&INPIT

Description

本発明は、ボールペンに関する。詳細には、軸筒内にインキを収容し、前記インキを前記軸筒先端のペン体にインキ誘導部材を介して供給するボールペンに関する。 The present invention relates to a ballpoint pen. More specifically, the present invention relates to a ballpoint pen in which ink is stored in a barrel and the ink is supplied to a pen body at the tip of the barrel via an ink guiding member.

従来、特許文献１には、先端にボールを回動自在に取り付けたボールペンチップの円筒中間部に、２本以上の縦リブを残して切欠部を形成し、チップ内にインキを導出するためのインキ中継芯を内装し、該チップの基部を軸筒本体に取り付けたボールペンが記載されている。 Conventionally, in Patent Document 1, a notch is formed in a cylindrical middle portion of a ballpoint pen tip in which a ball is rotatably attached to the tip, leaving two or more vertical ribs, and ink is drawn out into the tip. A ballpoint pen in which an ink relay core is installed and a base of the chip is attached to a barrel body is described.

実公昭５９－０１６２２７号公報Jikkensho 59-016227 Gazette

前記特許文献１のボールペンは、縦リブ形成部分は樹脂でなければ円筒部（本願のホルダー部に相当）の柔軟性が得られないことより、材料の選択性に乏しい。また、中継芯（本願のインキ誘導芯に相当）が円筒部内面（本願のホルダー部内面に相当）及び縦リブの内面に接触していることより、円筒部を弾性変形させた際、チップ（本願のペン体に相当）と中継芯の先端との接触状態が不安定になるおそれがある。 In the ballpoint pen of Patent Document 1, the flexibility of the cylindrical portion (corresponding to the holder portion of the present application) cannot be obtained unless the vertical rib forming portion is made of resin, and therefore the material selectivity is poor. Further, 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, the tip (corresponding to the elastic deformation of the cylindrical portion). The contact state between the pen body of the present application) and the tip of the relay core may become unstable.

本発明は、前記従来の問題点を解決するものであって、特定の材質によらずホルダー部に柔軟性を付与することができ、また、ホルダー部を弾性変形させた際、ペン体とインキ誘導芯の先端近傍との接触状態が安定している筆記具を提供しようとするものである。 The present invention solves the above-mentioned conventional problems, can impart flexibility to the holder portion regardless of a specific material, and when the holder portion is elastically deformed, the pen body and ink. It is intended to provide a writing tool in which the contact state with the vicinity of the tip of the guide core is stable.

本願の第１の発明は、
軸筒内にインキを収容し、前記軸筒先端のペン体にインキ誘導芯を介して前記インキを供給するボールペンであって、
前記ペン体は先端にボールを回転可能に抱持され、
先端部に前記ペン体を保持する筒状のホルダー部を前記軸筒の先端部に備え、
前記ホルダー部のペン体保持部より後方且つ前記軸筒先端より前方の前記ホルダー部側壁に、径方向外方及び径方向内方に開口する複数の切欠が、軸方向に異なる位置に形成され、
前記ホルダー部の前記切欠相互間に鍔部が形成され、
前記ホルダー部の前記鍔部相互間は連結部によって連結され、
前記インキ誘導芯が前記ペン体に接続される
ことを要件とする。 The first invention of the present application is
A ballpoint pen that stores ink in a barrel and supplies the ink to the pen body at the tip of the barrel via an ink guide core.
The pen body is rotatably held by the tip of the ball.
A cylindrical holder portion for holding the pen body is provided at the tip portion at the tip portion of the shaft cylinder.
A plurality of notches opening radially outwardly and radially inward are formed at different positions in the axial direction on the side wall of the holder portion rearward of the pen body holding portion of the holder portion and in front of the tip of the barrel.
A flange portion is formed between the notches of the holder portion, and the flange portion is formed.
The flanges of the holder are connected to each other by a connecting portion.
It is a requirement that the ink guide core is connected to the pen body.

前記第１の発明のボールペンは、
前記ホルダー部のペン体保持部より後方且つ前記軸筒先端より前方の前記ホルダー部側壁（柔軟性付与部）に、径方向外方及び径方向内方に開口する複数の切欠が、軸方向に異なる位置に形成され、前記ホルダー部の前記切欠相互間に鍔部が形成され、前記ホルダー部の前記鍔部相互間は連結部によって連結されることより、強度のあるホルダー部に高い柔軟性を付与することができ、柔らかな筆記感を得ることができる。また、必要以上の負荷を筆記先端部にかけることがなくなるため、筆記先端部の損傷を防ぐことができる。 The ballpoint pen of the first invention is
A plurality of notches opening radially outward and radially inward are axially formed in the holder portion side wall (flexibility imparting portion) behind the pen body holding portion of the holder portion and in front of the tip of the barrel. The holders are formed at different positions, and the flanges are formed between the notches of the holders, and the flanges of the holders are connected to each other by the connecting portions, so that the strong holder portion has high flexibility. It can be given and a soft writing feeling can be obtained. In addition, since an excessive load is not applied to the writing tip, damage to the writing tip can be prevented.

本願の第２の発明は、
前記ペン体は後方に開口する内孔を備え、
前記インキ誘導芯の先端部が、
前記ペン体の内孔に挿着されてなる
ことを要件とする。 The second invention of the present application is
The pen body has an inner hole that opens rearward and has an inner hole.
The tip of the ink guide core
It is a requirement that the pen be inserted into the inner hole of the pen body.

前記第２の発明のボールペンは、
前記インキ誘導芯の先端部が、前記ペン体の内孔に挿着されてなることより、ホルダー部が撓んだ状態でも、インキ誘導芯が確実にペン体の内孔の最深部に接触し、ペン体に十分なインキを迅速に供給し、安定した筆記性能が得られる。 The ballpoint 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 surely contacts the deepest part of the inner hole of the pen body even when the holder portion is bent. , Sufficient ink is quickly supplied to the pen body, and stable writing performance can be obtained.

本願の第３の発明は、
前記インキ誘導芯は、
前記鍔部のホルダー部内面に非接触である
ことを要件とする。 The third invention of the present application is
The ink guide core is
It is a requirement that the inner surface of the holder portion of the flange portion is not in contact with the inner surface.

前記第３の発明のボールペンは、
インキ誘導芯が前記鍔部のホルダー部内面に非接触であることより、ホルダー部が撓んだ状態でも撓んだホルダー部内面に沿ってインキ誘導芯が曲がることが無いため、インキ誘導芯とペン体の内孔の最深部の接触状態が適切に保たれ、より安定した筆記性能が得られる。 The ballpoint 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 portion, the ink guide core does not bend along the inner surface of the bent holder portion even when the holder portion is bent. The contact state of the deepest part of the inner hole of the pen body is properly maintained, and more stable writing performance can be obtained.

本願の第４の発明は、
前記ホルダー部は樹脂製である
ことを要件とする。 The fourth invention of the present application is
The holder portion is required to be made of resin.

前記第４の発明のボールペンは、
ホルダー部が樹脂製であることより、より大きな且つ適切な柔軟性をホルダー部に付与することができる。 The ballpoint pen of the fourth invention is
Since the holder portion is made of resin, it is possible to impart greater and appropriate flexibility to the holder portion.

本願の第５の発明は、
軸筒内にインキを収容し、前記軸筒先端のペン体にインキ誘導芯を介して前記インキを供給するボールペンであって、
前記ペン体は先端にボールを回転可能に抱持され、
先端部に前記ペン体を保持する筒状のホルダー部を前記軸筒の先端部に備え、
前記ホルダー部のペン体保持部より後方且つ前記軸筒先端より前方の前記ホルダー部側壁に、径方向外方及び径方向内方に開口する少なくとも１つ以上の螺旋状の切欠が形成され、
前記ホルダー部の前記切欠相互間に連結部が形成され、
前記インキ誘導芯が前記ペン体に接続される
ことを要件とする。 The fifth invention of the present application is
A ballpoint pen that stores ink in a barrel and supplies the ink to the pen body at the tip of the barrel via an ink guide core.
The pen body is rotatably held by the tip of the ball.
A cylindrical holder portion for holding the pen body is provided at the tip portion at the tip portion of the shaft cylinder.
At least one spiral notch that opens radially outwardly and radially inward is formed on the side wall of the holder portion that is rearward of the pen body holding portion of the holder portion and in front of the tip of the barrel.
A connecting portion is formed between the notches of the holder portion, and the connecting portion is formed.
It is a requirement that the ink guide core is connected to the pen body.

前記第５の発明のボールペンは、
前記ホルダー部のペン体保持部より後方且つ前記軸筒先端より前方の前記ホルダー部側壁に、径方向外方及び径方向内方に開口する少なくとも１つ以上の螺旋状の切欠が形成され、前記ホルダー部の前記切欠相互間に連結部（または鍔部）が形成されることより、強度のあるホルダー部に高い柔軟性を付与することができ、柔らかな筆記感を得ることができる。また、必要以上の負荷を筆記先端部にかけることがなくなるため、筆記先端部の損傷を防ぐことができる。 The ballpoint pen of the fifth invention is
At least one spiral notch that opens radially outwardly and radially inward is formed on the side wall of the holder portion that is rearward of the pen body holding portion of the holder portion and in front of the tip of the barrel. Since the connecting portion (or the flange portion) is formed between the notches of the holder portion, high flexibility can be imparted to the strong holder portion, and a soft writing feeling can be obtained. In addition, since an excessive load is not applied to the writing tip, damage to the writing tip can be prevented.

本発明のボールペンは、
強度のあるホルダー部に高い柔軟性を付与することができ、柔らかな筆記感を得ることができる。また、必要以上の負荷を筆記先端部にかけることがなくなるため、ペン体の筆記先端部の損傷を防ぐことができる。 The ballpoint pen of the present invention
High flexibility can be given to the strong holder portion, and a soft writing feeling can be obtained. In addition, since an excessive load is not applied to the writing tip, damage to the writing tip of the pen body can be prevented.

本発明のホルダー部を備えたボールペンの第１の実施の形態の図である。It is a figure of the 1st Embodiment of the ballpoint pen provided with the holder part of this invention. 図１の要部拡大縦断面図である。It is an enlarged vertical sectional view of a main part of FIG. 本発明の第１の実施の形態のホルダー部近傍の（ａ）正面図及び（ｂ）底面図である。It is (a) front view and (b) bottom view near the holder part of the 1st Embodiment of this invention. 図３の要部拡大縦断面図である。FIG. 3 is an enlarged vertical sectional view of a main part of FIG. 図４の切断線Ａ－Ａ及び切断線Ｂ－Ｂにおける（Ａ－Ａ）断面図及び（Ｂ－Ｂ）断面図である。It is (AA) sectional drawing and (BB) sectional drawing in the cutting line AA and the cutting line BB of FIG. 本発明の第１の実施の形態の要部拡大斜視図である。It is an enlarged perspective view of the main part of the 1st Embodiment of this invention. 本発明の第２の実施の形態のホルダー部近傍の（ａ）正面図及び（ｂ）底面図である。It is (a) front view and (b) bottom view near the holder part of the 2nd Embodiment of this invention. 図７の要部拡大縦断面図である。FIG. 7 is an enlarged vertical sectional view of a main part of FIG. 7. 図８の切断線Ｃ－Ｃ、切断線Ｄ－Ｄ及び切断線Ｅ－Ｅにおける（Ｃ－Ｃ）断面図、（Ｄ－Ｄ）断面図及び（Ｅ－Ｅ）断面図である。8 is a cross-sectional view taken along the line (CC), a cross-sectional view taken along the line (DD), and a cross-sectional view taken along the line (E) taken along the cutting line CC, the cutting line DD and the cutting line EE of FIG. 本発明の第２の実施の形態の要部拡大斜視図である。It is an enlarged perspective view of the main part of the 2nd Embodiment of this invention. 本発明の第３の実施の形態のホルダー部近傍の（ａ）正面図及び（ｂ）底面図である。It is (a) front view and (b) bottom view near the holder part of the 3rd Embodiment of this invention. 図１１の要部拡大縦断面図である。FIG. 11 is an enlarged vertical sectional view of a main part of FIG. 図１２の切断線Ｆ－Ｆ、切断線Ｇ－Ｇ及び切断線Ｈ－Ｈにおける（Ｆ－Ｆ）断面図、（Ｇ－Ｇ）断面図及び（Ｈ－Ｈ）断面図である。12 is a (FF) cross-sectional view, (GG) cross-sectional view, and (HH) cross-sectional view taken along the cutting line FF, the cutting line GG, and the cutting line HH in FIG. 本発明の第３の実施の形態の要部拡大斜視図である。It is an enlarged perspective view of the main part of the 3rd Embodiment of this invention. 本発明の第４の実施の形態のホルダー部近傍の（ａ）正面図及び（ｂ）底面図である。It is (a) front view and (b) bottom view near the holder part of the 4th Embodiment of this invention. 図１５の要部拡大縦断面図である。FIG. 15 is an enlarged vertical sectional view of a main part of FIG. 図１６の切断線Ｉ－Ｉ、切断線Ｊ－Ｊ及び切断線Ｋ－Ｋにおける断面図（Ｉ－Ｉ）、断面図（Ｊ－Ｊ）及び断面図（Ｋ－Ｋ）である。16A and 2B are a cross-sectional view (II), a cross-sectional view (JJ) and a cross-sectional view (KK) of the cutting line I-I, the cutting line JJ and the cutting line KK of FIG. 本発明の第４の実施の形態の要部拡大斜視図である。It is an enlarged perspective view of the main part of the 4th Embodiment of this invention. 本発明の第５の実施の形態の要部拡大縦断面図である。It is an enlarged vertical sectional view of the main part of the 5th Embodiment of this invention.

本発明のボールペンの実施の形態を図１乃至図１９に示す。 Embodiments of the ballpoint pen of the present invention are shown in FIGS. 1 to 19.

〈第１の実施の形態〉
図１乃至図６に本発明の第１の実施の形態を示す。
本実施の形態のボールペン１は、ペン体３と、インキ保留部材５と、ペン体３及びインキ保留部材５とを結合させるホルダー部４と、インキを直接収容する軸筒２１と、軸筒２１中のインキをペン体３に誘導するインキ誘導芯６を備えた筆記具本体２からなる。 <First Embodiment>
1 to 6 show a first embodiment of the present invention.
The ballpoint pen 1 of the present embodiment has a pen body 3, an ink holding member 5, a holder portion 4 for connecting the pen body 3 and the ink holding member 5, a shaft cylinder 21 for directly storing ink, and a shaft cylinder 21. It is composed of a writing tool main body 2 provided with an ink guiding core 6 for guiding the ink inside to the pen body 3.

・軸筒
軸筒２１は、合成樹脂の射出成形より得られる前端が開口され且つ後端が閉鎖された有底円筒体からなる。軸筒２１の前端開口部２１ａの内面は、インキ保留部材５が嵌合される。 The shaft cylinder The shaft cylinder 21 is made of a bottomed cylinder having an open front end and a closed rear end, which is obtained by injection molding of synthetic resin. The ink holding member 5 is fitted to the inner surface of the front end opening 21a of the shaft cylinder 21.

・インキ収容部
インキ収容部２１ｂは、前端が開口され且つ後端が閉鎖された有底円筒体の軸筒２１の内部に形成される。インキ収容部２１ｂの内周面には、軸方向に延びる４本のリブ２１ｃが等間隔に一体に形成される。また、リブ２１ｃはインキ保留部材５のストッパも兼ねる。 Ink accommodating portion The ink accommodating portion 21b is formed inside a bottomed cylindrical shaft cylinder 21 having an open front end and a closed rear end. Four ribs 21c extending in the axial direction are integrally formed at equal intervals on the inner peripheral surface of the ink accommodating portion 21b. The rib 21c also serves as a stopper for the ink holding member 5.

・ペン体
ペン体３は、金属製のパイプの先端近傍を外面より内方に押圧変形させたボール抱持部３２ａにボール３２を抱持してなるチップ、或いは、金属材料をドリル等による切削加工により形成したボール抱持部３２ａにボール３２を抱持してなるチップ、金属又はプラスチック製チップ内部に樹脂製のボール受け座３２ｂを設けたチップ等を適用できる。
又、前記ボール３２は、超硬合金、ステンレス鋼、ルビー、セラミック、樹脂、ゴム等の０．３～３．０ｍｍ、好ましくは０．３～１．５ｍｍ、より好ましくは０．４～１．０ｍｍ径程度のものが適用できる。 -Pen body The pen body 3 is a tip formed by holding a ball 32 in a ball holding portion 32a in which the vicinity of the tip of a metal pipe is pressed and deformed inward from the outer surface, or a metal material is cut by a drill or the like. A chip formed by holding the ball 32 in the ball holding portion 32a formed by processing, a chip provided with a resin ball receiving seat 32b inside a metal or plastic chip, or the like can be applied.
The ball 32 is 0.3 to 3.0 mm, preferably 0.3 to 1.5 mm, more preferably 0.4 to 1. Those with a diameter of about 0 mm can be applied.

前記ペン体３は、後端に嵌合部３３を有する。ペン体３は、後方に開口する内孔３３ａを備え、該内孔３３ａにインキ誘導芯６が挿着される。 The pen body 3 has a fitting portion 33 at the rear end. The pen body 3 is provided with an inner hole 33a that opens rearward, and the ink guide core 6 is inserted into the inner hole 33a.

・インキ誘導芯
インキ誘導芯６は、ペン体３の内孔３３ａに挿着される。インキ誘導芯６は毛細管力を有する軸方向のインキ導出路を備えるものであればいずれであってもよく、本実施例では、繊維の樹脂加工により得られる棒状体が採用されているが、これ以外にも、例えば、多孔質体、剛性樹脂の押出成形体が挙げられる。 -Ink guide core The ink guide core 6 is inserted into the inner hole 33a of the pen body 3. The ink guide core 6 may be any as long as it has an axial ink lead-out path having a capillary force, and in this embodiment, a rod-shaped body obtained by resin processing of fibers is adopted. In addition, for example, a porous body and an extruded body made of a rigid resin can be mentioned.

インキ誘導芯６がホルダー部内面４４に非接触である。それにより、ホルダー部４が撓んだ状態でも撓んだホルダー部内面４４に沿ってインキ誘導芯が曲がることが無いため、インキ誘導芯６とペン体３の内孔３３ａの最深部の接触状態が適切に保たれ、より安定した筆記性能が得られる。 The ink guide core 6 is not in contact with the inner surface 44 of the holder portion. As a result, the ink guide core does not bend along the bent inner surface 44 of the holder portion even when the holder portion 4 is bent, so that the ink guide core 6 and the deepest portion of the inner hole 33a of the pen body 3 are in contact with each other. Is maintained properly, and more stable writing performance can be obtained.

・インキ保留部材
インキ保留部材５は、インキ収容部２１ｂ内の圧力上昇に応じた余剰インキを一時的に保持する部材である。インキ保留部材５は、複数の櫛歯よりなるインキ保留部５１(櫛溝部)と、該インキ保留部５１の後端（即ち後端櫛歯５２後端面）と、インキ保留部５１の前端より前方に突出された取付部５３とが、一体に形成された合成樹脂（例えば、ＡＢＳ樹脂）の射出成形体よりなる。また、インキ保留部材５の軸心には、軸方向に延び且つ両端が開口された軸心孔５４が設けられる。軸心孔５４にはインキ誘導芯６が挿着される。取付部５３には、ホルダー部４が取り付けられる。尚、本考案におけるインキ保留部材５は、構成以外にも、インキ保留部５１が螺旋状溝や迷路状溝からなるもの、あるいは、インキ保留部５１が繊維材料または多孔質材料からなるもの等、いずれであってもよい。 -Ink holding member The ink holding member 5 is a member that temporarily holds excess ink in response to an increase in pressure in the ink accommodating portion 21b. The ink holding member 5 includes an ink holding portion 51 (comb groove portion) composed of a plurality of comb teeth, a rear end of the ink holding portion 51 (that is, a rear end surface of the rear end comb teeth 52), and an anterior side of the front end of the ink holding portion 51. The mounting portion 53 protruding from the surface is made of an injection-molded body of synthetic resin (for example, ABS resin) integrally formed. Further, the axial center of the ink holding member 5 is provided with an axial center hole 54 extending in the axial direction and having both ends opened. The ink guide core 6 is inserted into the shaft core hole 54. The holder portion 4 is attached to the attachment portion 53. In addition to the configuration, the ink holding member 5 in the present invention may have an ink holding portion 51 made of a spiral groove or a maze-shaped groove, or an ink holding portion 51 made of a fiber material or a porous material. It may be either.

軸心孔５４には、インキ誘導芯６が挿着される。インキ誘導芯６の前端は、ペン体３に接続され、インキ誘導芯６の後端は、インキ保留部材５の後端面と略一致または突出している。 The ink guide core 6 is inserted into the shaft core 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 substantially coincides with or protrudes from the rear end surface of the ink holding member 5.

・ホルダー部
ホルダー部４は、例えば、金属加工部材または合成樹脂の射出成形より得られる円筒体からなる。ホルダー部４の前方のペン体保持部４１内面とペン体３外面が嵌合され、ホルダー部４の後方の本体取付部４２内面とインキ保留部材５の取付部５３が嵌合される。また、ホルダー部４と取付部５３（インキ保留部材５）は一体成型品であると部品点数が減ってより好ましい。 -Holder portion The holder portion 4 is made of, for example, a cylindrical body obtained by injection molding of a metal processing member or a synthetic resin. The inner surface of the pen body holding portion 41 in front of the holder portion 4 and the outer surface of the pen body 3 are fitted, and the inner surface of the main body mounting portion 42 behind the holder portion 4 and the mounting portion 53 of the ink holding member 5 are fitted. Further, it is more preferable that the holder portion 4 and the mounting portion 53 (ink holding member 5) are integrally molded products because the number of parts is reduced.

前記ホルダー部４は、金属または合成樹脂材からなるものであればよく、前記合成樹脂材料として例えば、ポリプロピレン、ポリエチレン、ポリスチレン、ポリカーボネート、ポリエチレンテレフタレート、ポリアセタール、アクリル、ナイロン、アクリロニトリル・スチレン共重合樹脂（ＡＳ樹脂）、アクリロニトリル・ブタジエン・スチレン共重合樹脂（ＡＢＳ樹脂）等の比較的硬質な合成樹脂が例示できる。また、金属であればアルミニウム合金が例示できる。 The holder portion 4 may be made of a metal or a synthetic resin material, and the synthetic resin material may be, for example, polypropylene, polyethylene, polystyrene, polycarbonate, polyethylene terephthalate, polyacetal, acrylic, nylon, acrylonitrile / styrene copolymer resin ( Examples thereof include relatively hard synthetic resins such as AS resin) and acrylonitrile-butadiene-styrene copolymer resin (ABS resin). Further, if it is a metal, an aluminum alloy can be exemplified.

・切欠
ホルダー部４のペン体保持部４１より後方且つ本体取付部４２より前方のホルダー部側壁４３に、径方向外方及び径方向内方に開口する半円状の複数の切欠４３ａが、軸方向に異なる位置に形成され、切欠４３ａ相互間に鍔部４３ｂが形成される。すなわち、切欠４３ａはホルダー部側壁４３からホルダー部内面４４まで貫通しているため、内部のインキ誘導芯６の色が視認可能となり、収納されているインキ色を識別することができる。また、鍔部４３ｂ相互間は連結部４３ｃによって連結される。 A plurality of semicircular notches 43a that open radially outwardly and radially inward are provided on the side wall 43 of the holder portion rearward from the pen body holding portion 41 of the notch holder portion 4 and in front of the main body mounting portion 42. It is formed at different positions in the direction, and a flange portion 43b is formed between the notches 43a. That is, since the notch 43a penetrates from the side wall 43 of the holder portion to the inner surface 44 of the holder portion, the color of the ink guide core 6 inside can be visually recognized, and the color of the stored ink can be identified. Further, the flange portions 43b are connected to each other by the connecting portion 43c.

ホルダー部４のホルダー部側壁４３に、複数の切欠４３ａが、軸方向に異なる位置に形成され、切欠４３ａ相互間に半円板状の鍔部４３ｂが形成されることにより、ホルダー部４に柔軟性を付与することができる。 A plurality of notches 43a are formed at different positions in the axial direction on the side wall 43 of the holder portion of the holder portion 4, and semicircular flange portions 43b are formed between the notches 43a, whereby the holder portion 4 is flexible. Gender can be imparted.

図３の様に、
方向Ｘに垂直に貫通し、方向Ｘに開口する切欠４３ａが設けられている場合、ホルダー部４に方向Ｘの柔軟性を付与することができる。 As shown in Fig. 3.
When the notch 43a that penetrates perpendicularly to the direction X and opens in the direction X is provided, the holder portion 4 can be provided with the flexibility of the direction X.

ホルダー部４に方向Ｘの柔軟性を付与することができることで、柔らかな筆記感を得ることができる。また、必要以上の負荷を筆記先端部にかけることがなくなるため、筆記先端部の損傷を防ぐことができる。また、筆感は、切欠４３ａの寸法や数量によって任意に設定することができる。 By imparting the flexibility of the direction X to the holder portion 4, a soft writing feeling can be obtained. In addition, since an excessive load is not applied to the writing tip, damage to the writing tip can be prevented. Further, the brush feeling can be arbitrarily set according to the size and quantity of the notch 43a.

また、鍔部４３ｂ相互間は連結部４３ｃによって連結されることより、連結部４３ｃを支点としてペン体３が撓り、より高い柔軟性をホルダー部４に付与することができる。 Further, since the flange portions 43b are connected to each other by the connecting portion 43c, the pen body 3 bends with the connecting portion 43c as a fulcrum, and higher flexibility can be imparted to the holder portion 4.

〈第２の実施の形態〉
図７乃至図１０に本発明の第２の実施の形態を示す。
図７の様に、
方向Ｘに垂直に貫通し、方向Ｘに開口する切欠４３ａと、方向Ｙに垂直に貫通し、方向Ｙに開口する切欠４３ａが軸方向に交互に形成されている場合、ホルダー部４に径方向及び軸方向の全方向の柔軟性を付与することができる。 <Second embodiment>
7 to 10 show a second embodiment of the present invention.
As shown in Fig. 7.
When the notch 43a penetrating perpendicular to the direction X and opening in the direction X and the notch 43a penetrating perpendicularly to the direction Y and opening in the direction Y are alternately formed in the axial direction, the holder portion 4 is formed in the radial direction. And omnidirectional flexibility in the axial direction can be imparted.

ホルダー部４に径方向及び軸方向の全方向の柔軟性を付与することで、柔らかな筆記感を得ることができる。また、必要以上の負荷を筆記先端部にかけることがなくなるため、筆記先端部の損傷を防ぐことができる。また、筆感は、切欠４３ａの寸法や数量によって任意に設定することができる。 By imparting flexibility in all directions in the radial direction and the axial direction to the holder portion 4, a soft writing feeling can be obtained. In addition, since an excessive load is not applied to the writing tip, damage to the writing tip can be prevented. Further, the brush feeling can be arbitrarily set according to the size and quantity of the notch 43a.

〈第３の実施の形態〉
図１１乃至図１４に本発明の第３の実施の形態を示す。
図１１の様に、
方向Ｘに垂直に貫通し、方向Ｘに開口する異形の切欠４３ａと、方向Ｙに垂直に貫通し、方向Ｙに開口する異形の切欠４３ａが軸方向に交互に形成されている場合、ホルダー部４に前記第３の実施の形態と同様の柔軟性を付与することができるとともに、同様の効果も得られる。 <Third embodiment>
11 to 14 show a third embodiment of the present invention.
As shown in FIG.
When the irregular notch 43a that penetrates perpendicularly to the direction X and opens in the direction X and the irregular notch 43a that penetrates perpendicularly to the direction Y and opens in the direction Y are alternately formed in the axial direction, the holder portion. The same flexibility as that of the third embodiment can be imparted to No. 4, and the same effect can be obtained.

切欠４３ａは帯状の形態に関わらず、ホルダー部４に柔軟性を付与することができれば任意の形状で設定することができる。 The notch 43a can be set in any shape as long as flexibility can be imparted to the holder portion 4, regardless of the strip-shaped shape.

〈第４の実施の形態〉
図１５乃至図１８に本発明の第４の実施の形態を示す。
図１５の様に、
ホルダー部側壁４３に、径方向外方及び径方向内方に開口する少なくとも１つ以上の螺旋状の切欠４３が形成されている場合、つまりホルダー部側壁４３に少なくとも１つ以上の切欠４３ａが螺刻されている場合、ホルダー部４に前記第３の実施の形態と同様の柔軟性を付与することができるとともに、同様の効果も得られる。 <Fourth Embodiment>
15 to 18 show a fourth embodiment of the present invention.
As shown in FIG.
When at least one spiral notch 43 that opens radially outwardly and radially inward is formed on the holder portion side wall 43, that is, at least one notch 43a is screwed on the holder portion side wall 43. When engraved, the holder portion 4 can be imparted with the same flexibility as in the third embodiment, and the same effect can be obtained.

ホルダー部側壁４３に、切欠４３ａが螺刻されている場合、螺旋状の連結部４３ｃ（または鍔部４３ｂ）が形成される。 When the notch 43a is threaded on the side wall 43 of the holder portion, a spiral connecting portion 43c (or a flange portion 43b) is formed.

〈第５の実施の形態〉
・柔軟性抑制部材
図１９に本発明の第５の実施の形態を示す。
柔軟性抑制部材７は、例えば、金属加工部材または合成樹脂の射出成形より得られる円筒体からなる。また、図２１の様にホルダー部４に柔軟性抑制部材７を嵌着することで、ホルダー部４に付与されている柔軟性を抑制することができる。 <Fifth Embodiment>
-Flexibility Suppressing Member FIG. 19 shows a fifth embodiment of the present invention.
The flexibility suppressing member 7 is made of, for example, a metal processed member or a cylindrical body obtained by injection molding of a 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.

また、柔軟性抑制部材７の着脱により、ホルダー部４の柔軟性の有無を任意に設定することができる。また、柔軟性抑制部材７自体が柔軟性を有する場合、ホルダー部４に柔軟性抑制部材７を冠着することで任意の柔軟性に変化させることができる。 Further, by attaching / detaching the flexibility suppressing member 7, the presence / 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 any flexibility by attaching the flexibility suppressing member 7 to the holder portion 4.

１ ボールペン
２ 筆記具本体
２１ 軸筒
２１ａ 前端開口部
２１ｂ インキ収容部
２１ｃ リブ
３ ペン体
３１ 筆記先端部
３２ ボール
３２ａ ボール把持部
３２ｂ ボール受け座
３３ 嵌合部
３３ａ 内孔
４ ホルダー部
４１ ペン体保持部
４２ 本体取付部
４３ ホルダー部側壁
４３ａ 切欠
４３ｂ 鍔部
４３ｃ 連結部
４４ ホルダー部内面
５ インキ保留部材
５１ インキ保留部
５２ 後端櫛溝
５３ 取付部
５４ 軸芯孔
６ インキ誘導芯
７ 柔軟性抑制部材 1 Ballpoint pen 2 Writing instrument body 21 Shaft cylinder 21a Front end opening 21b Ink storage part 21c Rib 3 Pen body 31 Writing tip part 32 Ball 32a Ball gripping part 32b Ball receiving seat 33 Fitting part 33a Inner hole 4 Holder part 41 Pen body holding part 42 Main body mounting part 43 Holder part Side wall 43a Notch 43b Flip part 43c Connecting part 44 Holder part inner surface 5 Ink holding member 51 Ink holding part 52 Rear end comb groove 53 Mounting part 54 Shaft core hole 6 Ink guide core 7 Flexibility suppressing member

Claims (5)

軸筒内にインキを収容し、前記軸筒先端のペン体にインキ誘導芯を介して前記インキを供給するボールペンであって、
前記ペン体は先端にボールを回転可能に抱持され、
先端部に前記ペン体を保持する筒状のホルダー部を前記軸筒の先端部に備え、
前記ホルダー部のペン体保持部より後方且つ前記軸筒先端より前方の前記ホルダー部側壁に、径方向外方及び径方向内方に開口する複数の切欠が、軸方向に異なる位置に形成され、
前記ホルダー部の前記切欠相互間に鍔部が形成され、
前記ホルダー部の前記鍔部相互間は連結部によって連結され、
前記インキ誘導芯が前記ペン体に接続される
ことを特徴とするボールペン。 A ballpoint pen that stores ink in a barrel and supplies the ink to the pen body at the tip of the barrel via an ink guide core.
The pen body is rotatably held by the tip of the ball.
A cylindrical holder portion for holding the pen body is provided at the tip portion at the tip portion of the shaft cylinder.
A plurality of notches opening radially outwardly and radially inward are formed at different positions in the axial direction on the side wall of the holder portion rearward of the pen body holding portion of the holder portion and in front of the tip of the barrel.
A flange portion is formed between the notches of the holder portion, and the flange portion is formed.
The flanges of the holder are connected to each other by a connecting portion.
A ballpoint pen characterized in that the ink guide core is connected to the pen body. 前記ペン体は後方に開口する内孔を備え、
前記インキ誘導芯の先端部が、
前記ペン体の内孔に挿着されてなる
ことを特徴とする請求項１記載のボールペン。 The pen body has an inner hole that opens rearward and has an inner hole.
The tip of the ink guide core
The ballpoint pen according to claim 1, wherein the ballpoint pen is inserted into an inner hole of the pen body. 前記インキ誘導芯は、
前記鍔部のホルダー部内面に非接触である
ことを特徴とする請求項１又は２に記載のボールペン。 The ink guide core is
The ballpoint pen according to claim 1 or 2, wherein the ballpoint pen is not in contact with the inner surface of the holder portion of the flange portion. 前記ホルダー部は樹脂製である
ことを特徴とする請求項１乃至３のいずれか一項に記載のボールペン。 The ballpoint pen according to any one of claims 1 to 3, wherein the holder portion is made of resin. 軸筒内にインキを収容し、前記軸筒先端のペン体にインキ誘導芯を介して前記インキを供給するボールペンであって、
前記ペン体は先端にボールを回転可能に抱持され、
先端部に前記ペン体を保持する筒状のホルダー部を前記軸筒の先端部に備え、
前記ホルダー部のペン体保持部より後方且つ前記軸筒先端より前方の前記ホルダー部側壁に、径方向外方及び径方向内方に開口する少なくとも１つ以上の螺旋状の切欠が形成され、
前記ホルダー部の前記切欠相互間に連結部が形成され、
前記インキ誘導芯が前記ペン体に接続される
ことを特徴とするボールペン。
A ballpoint pen that stores ink in a barrel and supplies the ink to the pen body at the tip of the barrel via an ink guide core.
The pen body is rotatably held by the tip of the ball.
A cylindrical holder portion for holding the pen body is provided at the tip portion at the tip portion of the shaft cylinder.
At least one spiral notch that opens radially outwardly and radially inward is formed on the side wall of the holder portion that is rearward of the pen body holding portion of the holder portion and in front of the tip of the barrel.
A connecting portion is formed between the notches of the holder portion, and the connecting portion is formed.
A ballpoint pen characterized in that the ink guide core is connected to the pen body.
JP2022005715A 2016-12-26 2022-01-18 ballpoint pen Active JP7289941B2 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49101123A (en) * 1972-10-20 1974-09-25
JPH11268471A (en) * 1998-03-24 1999-10-05 Mitsubishi Pencil Co Ltd Writing utensil
JP2013252655A (en) * 2012-06-07 2013-12-19 Mitsubishi Pencil Co Ltd Ballpoint pen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49101123A (en) * 1972-10-20 1974-09-25
JPH11268471A (en) * 1998-03-24 1999-10-05 Mitsubishi Pencil Co Ltd Writing utensil
JP2013252655A (en) * 2012-06-07 2013-12-19 Mitsubishi Pencil Co Ltd Ballpoint pen

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