WO2005012001A1 - Shaft tube for writing implement - Google Patents

Shaft tube for writing implement Download PDF

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Publication number
WO2005012001A1
WO2005012001A1 PCT/JP2004/010723 JP2004010723W WO2005012001A1 WO 2005012001 A1 WO2005012001 A1 WO 2005012001A1 JP 2004010723 W JP2004010723 W JP 2004010723W WO 2005012001 A1 WO2005012001 A1 WO 2005012001A1
Authority
WO
WIPO (PCT)
Prior art keywords
grip
resin
hard resin
grip member
engaged
Prior art date
Application number
PCT/JP2004/010723
Other languages
French (fr)
Japanese (ja)
Inventor
Kazuyoshi Karaki
Norio Moriyama
Original Assignee
Kabushiki Kaisha Pilot Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kabushiki Kaisha Pilot Corporation filed Critical Kabushiki Kaisha Pilot Corporation
Priority to JP2005512503A priority Critical patent/JP4364868B2/en
Publication of WO2005012001A1 publication Critical patent/WO2005012001A1/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43KIMPLEMENTS FOR WRITING OR DRAWING
    • B43K23/00Holders or connectors for writing implements; Means for protecting the writing-points
    • B43K23/008Holders comprising finger grips

Definitions

  • the present invention relates to a barrel of a writing instrument in which a grip member is attached to a grip portion of the barrel.
  • the grip member is formed integrally with the barrel by two-color molding, or formed in advance by forming the grip member formed in advance into a tip portion member and a grip portion of the barrel with smaller diameters than other barrels. It is installed by being inserted between the steps.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 10-297161 (Japanese Patent Application No. 9-123441)"
  • Patent Document 2 Japanese Utility Model Application No. 7-7985
  • the grip member does not rotate or rotate with respect to the barrel, but it is preferable that it is integral with the barrel and the hard resin as described above.
  • the shape of the exposed part considering that part of it is exposed to the outside The shape may have been limited by other barrel shapes.
  • a sink mark may occur at the exposed portion.
  • the concave and / or convex portion (engaged portion) formed on the inner wall of the grip member and the convex and / or concave portion (gripping attachment engaging portion) formed on the shaft cylinder are engaged in a concavo-convex manner
  • the grip member is a soft resin
  • the convex portions of the soft resin are elastically deformed, or a portion opposed to the convex portions of the shaft cylinder is also elastically deformed and can be fitted.
  • the present invention has as its first technical object to provide a cylinder for a writing tool which is easy to assemble.
  • the second technical problem is to make the position in the rotational direction of the grip member constant.
  • the cylinder (1) of the writing instrument of the present invention has a grip mounting engaging portion (4) and a grip (3) smaller in diameter than other portions of the cylinder.
  • An engaged portion (8b) engaged with the grip attachment portion (4); and the grip attachment portion (4) and the engaged portion (8b) are engaged with each other.
  • It is an axial cylinder (1) of a writing instrument having a grip member (G) which is circumferentially positioned and attached to the grip portion (3), It is formed by two-color molding of a hard resin (8) and a soft resin (9), and a part of the hard resin (8) is exposed to the outside and inside the hard resin (8) and the soft resin (9).
  • At least one end (9b) of the grip member (G) in the axial direction is the soft resin.
  • the grip member (G) is fitted in the grip portion (3) by press-fitting the inner wall (9a) of the soft resin (9) exposed inside to the grip portion (3) It is also possible.
  • the grip member (G) may be formed of a hard resin (8) different in color from the force barrel, and a soft resin (9) different in color from the barrel and hard resin (8).
  • the hard resin (8) of the present invention is an AS resin, an ABS resin, a POM resin, a PS (polystyrene) resin, a PET (polyethylene terephthalate) resin, a PBT (polybutylene terephthalate) resin
  • Hard resins such as PP resin, PMMA (polymethacrylic) resin, PC (polycarbonate) resin
  • the soft resin (9) of the present invention is a thermoplastic elastomer known generally as a grip member (G) of a writing instrument, such as polystyrene-based, polyurethane-based, polyolefin-based thermoplastic elastomer 1 or the like.
  • a thermoplastic elastomer known generally as a grip member (G) of a writing instrument, such as polystyrene-based, polyurethane-based, polyolefin-based thermoplastic elastomer 1 or the like.
  • the heat fusible elastomers in view of coating the above-mentioned hard resin (8) by two-color molding, in consideration of moldability and fusion property with the selected hard resin (8), etc. It may be selected appropriately.
  • the grip member (G) is formed by two-color molding of a hard resin (8) and a soft resin (9), and the hard resin 8) is exposed to the outside, and the hard resin (8) and the soft resin (9) are exposed inside, and the hard resin (4) in which the grip mounting engaging portion (4) is exposed inside It is formed in 8).
  • the shaft cylinder (1) of the writing instrument can be easily made
  • the position of the grip member (G) in the rotational direction can be made constant.
  • the soft resin (9) exposed inside is formed at at least one end (9b) of the grip member (G) in the axial direction, the soft resin (9) can be compressed and held.
  • the position of the grip member (G) or the position of the member which abuts on the soft resin (9) and whose position is determined can be determined without any gap without strict dimensional accuracy. Further, when the grip member (G) is attached to the grip portion (3), the inner wall (9a) of the soft resin (9) exposed to the inside is press fitted into the grip portion (3). In this case, rattling and rotation of the grip member (G) can be prevented, so that the cylinder (1) of the writing tool can be easily assembled. Furthermore, after the grip mounting engagement portion (4) and the engaged portion (8b) formed on the hard resin (8) start to engage, the inner wall (9a) of the soft resin (9) is formed.
  • the grip member (G) can be positioned before press-fitting, which further facilitates assembly.
  • the grip member (G) is formed of a hard resin (8) different in color from the shaft cylinder, and a soft resin (9) different in color from the shaft cylinder and the hard resin (8), a decorative grip member (G) can be provided.
  • the grip member G is attached to the grip portion 3 formed with the outer diameter of the cylinder main body 2 at a small diameter, but the grip member G is a blue hard resin in advance. 8 (ABS resin), a part of the hard resin 8 is exposed to the outside, and the black soft resin 9 (Olefin is formed so that the hard resin portion 8a and the soft resin portion 9a are formed on the inner wall of the grip member G).
  • the system is formed by coating by two-color molding.
  • the convex portion (grip mounting engagement portion) 4 formed on the grip portion 3 and the inner wall 8a of the hard resin portion of the grip member G are provided.
  • the positional relationship between the inner wall 8a and the convex portion 4 of the grip portion 3 is set, and the minimum inner diameter L of the inner wall 9a of the soft resin portion, the minimum inner diameter M of the inner wall 8a of the hard resin portion, and the maximum diameter of the grip portion 3
  • the relationship of the outer diameter N is L ⁇ N ⁇ M.
  • the assembly 9a is preferable because the assembly is further facilitated.
  • the soft resin 9 can be compressed and held when the tip member 6 is screwed.
  • the gap is not formed between the fore-end member 6 and the grip member G, even if the dimensional accuracy is not strictly defined or the dimensional change due to the passage of time, etc.
  • the relationship between the minimum inner diameter L of the inner wall 9 a of the soft resin portion 9, the minimum inner diameter M of the hard resin portion 8 and the maximum outer diameter N of the grip portion 3 is given by L ⁇ N ⁇ M.
  • the inner wall 9a of the soft resin portion 9 is pressed into the grip portion 3 of the barrel 1 after engagement of the convex portion 4 formed in the grip portion 3 and the recess 8b formed in the hard resin portion 8 is started.
  • the minimum inner diameter of the inner wall 9a of the soft resin portion 9 and the minimum inner diameter of the hard resin portion 8 are the same, and A convex portion 4 formed on the grip portion 3 by changing the outer diameter of the grip portion 3 corresponding to the inner wall 9a of the resin portion 9 and the outer diameter of the grip portion 3 corresponding to the inner wall 8a of the hard resin portion 8;
  • the inner wall 8a of the soft resin portion 8 may be pressed into the grip portion 3 of the barrel 1 after the engagement with the concave portion 8b formed in the hard resin portion 8 is started.
  • the convex portion 4 is illustrated as the grip mounting engaging portion, and the concave portion 8b is illustrated as the engaged portion.
  • the present invention is not limited to this.
  • the inner wall 9a of the soft resin portion 9 to be press-fit into the grip portion 3 is disposed at the front end, but is not limited thereto.
  • the portion where the press-fit is performed at the rear end portion it is possible to arrange the portion where the press-fit is performed at the rear end portion, and make the inner end portion 9a of the soft resin portion 9 at the tip end portion and the grip portion 3 not press-fit. is there.
  • both the configuration in which the grip portion 3 and the grip member G are press-fit and the configuration in which the soft resin 9 is provided at the end portion are used. It is also possible to
  • the present invention can be applied to an application where it is necessary to decorate the shaft cylinder with clips, characters, pictures and the like and to specify the positions of the shaft cylinder and the grip member.
  • FIG. 1A is an explanatory view of an embodiment of a barrel of a writing instrument according to the present invention
  • FIG. 1A is a partly omitted longitudinal sectional view showing the barrel of the writing instrument according to the present invention
  • FIG. 2 is a view showing a barrel of the writing instrument before assembly in FIG.
  • FIG. 3 is a cross-sectional view taken along the line ⁇ _ ⁇ in FIG. 1A.
  • FIG. 4 is a view showing the assembly process of the grip member in the barrel of the writing instrument, and FIG. 4 is an explanatory view of a state in which the engagement portion for mounting the drip and the engaged portion have started to be engaged; 4 is an explanatory view of a state in which the inner wall of the grip member and the grip portion have started press-fitting. Explanation of sign

Landscapes

  • Pens And Brushes (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)

Abstract

[PROBLEMS] A shaft tube for a writing implement, the shaft tube being easy to assemble. [MEANS FOR SOLVING PROBLEMS] A shaft tube (1) for a writing implement has a holding portion (3) and a grip member (G). The holding portion (3) has an engagement portion (4) for grip installation and is smaller in diameter than other portions of the shaft tube. The grip portion (G) has a to-be-engaged portion (8b) engaging the engagement portion (4) for grip installation and is installed on the holding portion (3) with the engagement portion (4) for grip installation and the to-be-engaged portion (8b) engaged with each other for circumferential positioning. The shaft tube (1) is formed by two-color forming using a hard resin (8) and a soft resin (9). A portion of the hard resin (8) is exposed to the outside and the hard resin and the soft resin are exposed to the inside. The shaft tube (1) has the grip member (G) having the to-be-engaged portion (8b) formed on the hard resin exposed to the inside.

Description

明 細 書  Specification
筆記具の軸筒  Shaft of writing instrument
技術分野  Technical field
[0001] 本発明は、軸筒の把持部にグリップ部材を装着してなる筆記具の軸筒に関する。  The present invention relates to a barrel of a writing instrument in which a grip member is attached to a grip portion of the barrel.
背景技術  Background art
[0002] 従来から、軸筒の把持部に、弾性体からなるグリップ部材を装着してなる筆記具の 軸筒はよく知られている。  [0002] Conventionally, a shaft cylinder of a writing tool in which a grip member made of an elastic body is attached to a grip portion of the shaft cylinder is well known.
[0003] こうした筆記具において、グリップ部材は、二色成形により軸筒と一体形成したり、 予め形成したグリップ部材を口先部材と軸筒の把持部を他の軸筒より小径にすること により形成される段部間に嵌挿させて配設している。  [0003] In such a writing instrument, the grip member is formed integrally with the barrel by two-color molding, or formed in advance by forming the grip member formed in advance into a tip portion member and a grip portion of the barrel with smaller diameters than other barrels. It is installed by being inserted between the steps.
[0004] また、硬質樹脂の一部が外部に露出するように、軟質樹脂を二色成形により被覆し て形成した筆記具として、本願出願人は、特開平 10—297161 (特願平 9一 123441) 号公報「筆記具または塗布具の軸筒」にて開示してレ、る。  Further, as a writing instrument formed by covering a soft resin by two-color molding so that a part of the hard resin is exposed to the outside, the applicant of the present application has disclosed Japanese Patent Application Laid-Open No. 10-297161. No. "The barrel of a writing instrument or applicator".
[0005] また、予め形成したグリップ部材を口先部材と軸筒の把持部を他の軸筒より小径に することにより形成される段部間に、グリップ部材が回転しないように嵌揷する構造と して、実開平 7 - 7985号公報「筆記具の滑り止め装置」に、筆記具本体の先端側の 指当部の外周面に突縁ないし凹入縁を、ゴム等の弾性素材より成る弾性筒体の内周 面に凹入縁ないし突縁を、少なくともそれぞれの軸線方向に沿わせて部分的に設け 、指当部の凹入縁ないし突縁を弾性筒体の突縁ないし凹入縁に係合して弾性筒体 に前記指当部を挾入した、筆記具の滑り止め装置が開示されている。  In addition, a structure in which the grip member is fitted so as not to rotate between stepped portions formed by making the grip portion of the tip member and the grip portion of the shaft cylinder smaller in diameter than the other shaft cylinders. Japanese Utility Model Laid-Open Publication No. 7-7985, "Anti-slip device for writing instrument", an elastic cylindrical body made of an elastic material such as rubber, with a raised or recessed edge on the outer peripheral surface of the finger rest on the tip end side of the writing instrument A recessed edge or flange is partially provided on the inner peripheral surface of the elastic member along at least each axial direction, and the recessed edge or flange of the finger contact part is engaged with the flange or recessed edge of the elastic cylinder. There is disclosed an anti-slip device for a writing instrument, in which the finger rest is inserted into an elastic cylinder.
特許文献 1:「特開平 10-297161 (特願平 9-123441)号公報」  Patent Document 1: "Japanese Patent Application Laid-Open No. 10-297161 (Japanese Patent Application No. 9-123441)"
特許文献 2 :「実開平 7— 7985号公報」  Patent Document 2: "Japanese Utility Model Application No. 7-7985"
発明の開示  Disclosure of the invention
発明が解決しょうとする課題  Problem that invention tries to solve
[0006] しかし、軟質樹脂を二色成形により被覆することによって、軸筒に対しグリップ部材 が回転しにくぐあるいは回転しなくなるので好ましいが、軸筒と一体で、尚且つ前述 したように硬質樹脂の一部が外部に露出させることを考慮すると、露出する部分の形 状は、その他の軸筒形状によって制限されてしまうことがあった。また、肉厚が厚くな るため露出する部分に成形時のヒケ(くぼみ)が発生する恐れもあった。 However, by coating the soft resin by two-color molding, it is preferable because the grip member does not rotate or rotate with respect to the barrel, but it is preferable that it is integral with the barrel and the hard resin as described above. The shape of the exposed part, considering that part of it is exposed to the outside The shape may have been limited by other barrel shapes. In addition, since the wall thickness is increased, there is a possibility that a sink mark (dent) may occur at the exposed portion.
[0007] また、グリップ部材の内壁に形成した凹部及び/または凸部(被係合部)と、軸筒に 形成した凸部及び/または凹部(グリップ装着用係合部)を凹凸係合させて回り止め を行うと、グリップ部材が軟質樹脂であるため、グリップ部材の内壁に形成した凹部及 び/または凸部と、これに対応する位置に軸筒に形成した凸部及び/または凹部がな い状態であっても、ある程度の押圧力を加えると、軟質樹脂の凸部は弾性変形し、あ るいは、軸筒の凸部に対向する部分も弾性変形して嵌揷できてしまう。そのため、ダリ ップ部材の回転方向の位置を、軸筒に対して一定にすることが難しぐ特に機械組み においてグリップの回転方向の位置を一定にすることは難しいという問題があった。 本発明のような硬質樹脂の一部が外部に露出し、装飾的に方向性を有するグリップ 部材では、グリップ部材の回転方向の位置を、軸筒に対して一定にすることが重要と なる。  Further, the concave and / or convex portion (engaged portion) formed on the inner wall of the grip member and the convex and / or concave portion (gripping attachment engaging portion) formed on the shaft cylinder are engaged in a concavo-convex manner If the grip member is a soft resin, the concave and / or convex part formed on the inner wall of the grip member and the convex and / or concave part formed on the shaft cylinder at the corresponding position Even in the absence of pressure, when a certain amount of pressing force is applied, the convex portions of the soft resin are elastically deformed, or a portion opposed to the convex portions of the shaft cylinder is also elastically deformed and can be fitted. Therefore, there is a problem that it is difficult to make the position in the rotational direction of the drip member constant with respect to the shaft cylinder, and it is difficult to make the position in the rotational direction of the grip constant particularly in a mechanical assembly. In a grip member having a part of the hard resin as in the present invention exposed to the outside and having decorative orientation, it is important to make the position of the grip member in the rotational direction constant with respect to the barrel.
[0008] 前述の事情に鑑み、本発明は、組立が容易な筆記具の軸筒を提供することを第 1 の技術的課題とする。  [0008] In view of the above-mentioned circumstances, the present invention has as its first technical object to provide a cylinder for a writing tool which is easy to assemble.
また、グリップ部材の回転方向の位置を一定にすることを第 2の技術的課題とする。 課題を解決するための手段  In addition, the second technical problem is to make the position in the rotational direction of the grip member constant. Means to solve the problem
[0009] 次に、前記課題を解決した本発明を説明するが、本発明の要素には、後述の実施 の形態の具体例(実施例)の要素との対応を容易にするため、実施例の要素の符号 をカツコで囲んだものを付記する。また、本発明を後述の実施例の符号と対応させて 説明する理由は、本発明の理解を容易にするためであり、本発明の範囲を実施例に 限定するためではない。  Next, the present invention solving the above-mentioned problems will be described. The elements of the present invention will be described in the embodiment in order to facilitate the correspondence with the elements of the specific example (embodiment) of the embodiment described later. The code of the element of is enclosed by katsuko. Further, the reason why the present invention is described in correspondence with the reference numerals of the embodiments described later is for the purpose of facilitating the understanding of the present invention, and is not for limiting the scope of the present invention to the embodiments.
[0010] (本発明)  (Invention)
前記技術的課題を解決するために、本発明の筆記具の軸筒(1)は、グリップ装着 用係合部(4)を有し軸筒の他の部分よりも小径の把持部(3)と、前記グリップ装着用 係合部 (4)と係合する被係合部(8b)を有し前記グリップ装着用係合部 (4)と前記被 係合部(8b)とが係合して周方向の位置決めがされて前記把持部(3)に装着される グリップ部材 (G)と、を有する筆記具の軸筒(1)であって、 硬質樹脂 (8)と軟質樹脂(9)との二色成形により形成され、前記硬質樹脂(8)の一 部が外部に露出し且つ内部に前記硬質樹脂 (8)と前記軟質樹脂(9)とが露出すると ともに、内部に露出した前記硬質樹脂 (8)に前記グリップ装着用係合部 (4)が形成さ れた前記グリップ部材 (G)を備えたことを特徴とする。 In order to solve the above technical problems, the cylinder (1) of the writing instrument of the present invention has a grip mounting engaging portion (4) and a grip (3) smaller in diameter than other portions of the cylinder. An engaged portion (8b) engaged with the grip attachment portion (4); and the grip attachment portion (4) and the engaged portion (8b) are engaged with each other. It is an axial cylinder (1) of a writing instrument having a grip member (G) which is circumferentially positioned and attached to the grip portion (3), It is formed by two-color molding of a hard resin (8) and a soft resin (9), and a part of the hard resin (8) is exposed to the outside and inside the hard resin (8) and the soft resin (9). And the grip member (G) in which the grip mounting engaging portion (4) is formed on the hard resin (8) exposed to the inside.
[0011] また、前記グリップ部材 (G)の軸方向の少なくとも一方の端部(9b)を前記軟質樹脂 [0011] Further, at least one end (9b) of the grip member (G) in the axial direction is the soft resin.
(9)で形成することも可能である。  It is also possible to form by (9).
[0012] さらに、内部に露出した前記軟質樹脂(9)の内壁(9a)が前記把持部(3)に圧入嵌 合して前記把持部(3)に装着される前記グリップ部材 (G)とすることも可能である。 Furthermore, the grip member (G) is fitted in the grip portion (3) by press-fitting the inner wall (9a) of the soft resin (9) exposed inside to the grip portion (3) It is also possible.
[0013] また、前記グリップ装着用係合部 (4)と、前記硬質樹脂 (8)に形成された前記被係 合部(8b)とが係合を開始した後に、前記軟質樹脂(9)の内壁 (9a)が軸筒の把持部In addition, after the grip attachment engaging portion (4) and the engaged portion (8b) formed on the hard resin (8) start to engage, the soft resin (9) Inner wall (9a) is the grip of the barrel
(3)に圧入嵌合を開始するように構成することも可能である。 It is also possible to configure (3) so as to start the press fitting.
[0014] さらに、前記グリップ部材 (G)力 軸筒と色の異なる硬質樹脂(8)、軸筒及び硬質 樹脂 (8)と色の異なる軟質樹脂(9)で形成することも可能である。 Furthermore, the grip member (G) may be formed of a hard resin (8) different in color from the force barrel, and a soft resin (9) different in color from the barrel and hard resin (8).
[0015] 本発明の硬質樹脂(8)は、 AS樹脂、 ABS樹脂、 POM樹脂、 PS (ポリスチレン)樹 脂、 PET (ポリエチレンテレフタレート)樹脂、 PBT (ポリブチレンテレフタレート)樹脂The hard resin (8) of the present invention is an AS resin, an ABS resin, a POM resin, a PS (polystyrene) resin, a PET (polyethylene terephthalate) resin, a PBT (polybutylene terephthalate) resin
、 PP樹脂、 PMMA (ポリメタクリル)樹脂、 PC (ポリカーボネート)樹脂等の硬質樹脂(, Hard resins such as PP resin, PMMA (polymethacrylic) resin, PC (polycarbonate) resin
8)である。 8).
[0016] 本発明の軟質樹脂(9)は、ポリスチレン系、ポリウレタン系、ポリオレフイン系の熱可 塑性エラストマ一等、筆記具のグリップ部材 (G)として一般的に知られている熱可塑 性エラストマ一や熱融着性エラストマ一のなかから、前述した硬質樹脂(8)に二色成 形により被覆することを鑑みて、選択した硬質樹脂 (8)との成形性や融着性等を考慮 して適宜選定すればよい。  The soft resin (9) of the present invention is a thermoplastic elastomer known generally as a grip member (G) of a writing instrument, such as polystyrene-based, polyurethane-based, polyolefin-based thermoplastic elastomer 1 or the like. Among the heat fusible elastomers, in view of coating the above-mentioned hard resin (8) by two-color molding, in consideration of moldability and fusion property with the selected hard resin (8), etc. It may be selected appropriately.
[0017] (本発明の作用)  (Operation of the Present Invention)
前記構成要件を備えた本発明の筆記具の軸筒(1)では、グリップ部材 (G)は、硬 質樹脂 (8)と軟質樹脂(9)との二色成形により形成され、前記硬質樹脂(8)の一部が 外部に露出し、内部に前記硬質樹脂 (8)と前記軟質樹脂(9)とが露出するとともに、 前記グリップ装着用係合部 (4)を内部に露出した硬質樹脂(8)に形成している。硬質 樹脂 (8)にグリップ装着用係合部 (4)を形成することにより、筆記具の軸筒(1)を容易 に組み立てることができると共に、グリップ部材 (G)の回転方向の位置を一定にす ること力できる。また、内部に露出した軟質樹脂(9)が前記グリップ部材 (G)の軸方向 の少なくとも一方の端部(9b)に形成されている場合、軟質樹脂(9)を圧縮して保持 することができるので、寸法精度を厳密にしなくてもグリップ部材 (G)の位置や軟質 樹脂(9)に当接して位置が決まる部材の位置が隙間無く定まる。また、前記グリップ 部材 (G)が前記把持部(3)に装着される際に、内部に露出した前記軟質樹脂(9)の 内壁(9a)が前記把持部(3)に圧入嵌合される場合、グリップ部材 (G)のガタツキや 回転を防止できるので、筆記具の軸筒(1)を容易に組み立てることができる。さらに、 前記グリップ装着用係合部 (4)と前記硬質樹脂 (8)に形成された前記被係合部 (8b) とが係合を開始した後に、前記軟質樹脂(9)の内壁(9a)が軸筒の把持部(3)に圧 入嵌合を開始するようにした場合、圧入前にグリップ部材 (G)の位置出しができるの で、さらに組立が容易なる。また、前記グリップ部材 (G)を、軸筒と色の異なる硬質樹 脂 (8)、軸筒及び硬質樹脂 (8)と色の異なる軟質樹脂(9)で形成した場合、装飾的 なグリップ部材 (G)を提供できる。 The grip member (G) is formed by two-color molding of a hard resin (8) and a soft resin (9), and the hard resin 8) is exposed to the outside, and the hard resin (8) and the soft resin (9) are exposed inside, and the hard resin (4) in which the grip mounting engaging portion (4) is exposed inside It is formed in 8). By forming the grip mounting engaging part (4) on the hard resin (8), the shaft cylinder (1) of the writing instrument can be easily made The position of the grip member (G) in the rotational direction can be made constant. In addition, when the soft resin (9) exposed inside is formed at at least one end (9b) of the grip member (G) in the axial direction, the soft resin (9) can be compressed and held. Therefore, the position of the grip member (G) or the position of the member which abuts on the soft resin (9) and whose position is determined can be determined without any gap without strict dimensional accuracy. Further, when the grip member (G) is attached to the grip portion (3), the inner wall (9a) of the soft resin (9) exposed to the inside is press fitted into the grip portion (3). In this case, rattling and rotation of the grip member (G) can be prevented, so that the cylinder (1) of the writing tool can be easily assembled. Furthermore, after the grip mounting engagement portion (4) and the engaged portion (8b) formed on the hard resin (8) start to engage, the inner wall (9a) of the soft resin (9) is formed. In the case where the grip portion (3) of the barrel starts pressing fit, the grip member (G) can be positioned before press-fitting, which further facilitates assembly. When the grip member (G) is formed of a hard resin (8) different in color from the shaft cylinder, and a soft resin (9) different in color from the shaft cylinder and the hard resin (8), a decorative grip member (G) can be provided.
発明の効果  Effect of the invention
[0018] 前述の本発明により、組立が容易で、かつグリップ部材が回転することなぐ装飾的 なグリップ部材の位置を一定にすることが容易な筆記具の軸筒を提供できる。  According to the present invention as described above, it is possible to provide a cylinder for a writing instrument which is easy to assemble and which makes it easy to keep the position of the decorative grip member fixed so that the grip member does not rotate.
発明を実施するための最良の形態  BEST MODE FOR CARRYING OUT THE INVENTION
[0019] 装飾的なグリップ部材の位置を一定にする筆記具の軸筒を提供する目的を、組立 性を損なわずに実現した。 [0019] The purpose of providing a cylinder for a writing instrument which makes the position of the decorative grip member constant is realized without impairing the assemblability.
実施例 1  Example 1
[0020] 図 1から図 4に示す筆記具の軸筒 1は、軸筒本体 2の外径を小径に形成した把持部 3にグリップ部材 Gを装着するが、グリップ部材 Gは予め青色の硬質樹脂 8 (ABS樹 脂)に、硬質樹脂 8の一部が外部に露出し、グリップ部材 Gの内壁に、硬質樹脂部 8a と軟質樹脂部 9aとを形成するように、黒色の軟質樹脂 9 (ォレフィン系の融着性エラス トマ一)を二色成形により被覆して形成してある。  In the cylinder 1 of the writing instrument shown in FIGS. 1 to 4, the grip member G is attached to the grip portion 3 formed with the outer diameter of the cylinder main body 2 at a small diameter, but the grip member G is a blue hard resin in advance. 8 (ABS resin), a part of the hard resin 8 is exposed to the outside, and the black soft resin 9 (Olefin is formed so that the hard resin portion 8a and the soft resin portion 9a are formed on the inner wall of the grip member G). The system is formed by coating by two-color molding.
[0021] グリップ部材 Gを軸筒本体 2の把持部 3に装着する時には、把持部 3に形成した凸 部(グリップ装着用係合部) 4と、グリップ部材 Gの硬質樹脂部の内壁 8aに形成した、 凸部 4に対応する凹部 (被係合部) 8bとを係合する。 When mounting the grip member G to the grip portion 3 of the barrel body 2, the convex portion (grip mounting engagement portion) 4 formed on the grip portion 3 and the inner wall 8a of the hard resin portion of the grip member G are provided. Formed Engage with the concave portion (engaged portion) 8 b corresponding to the convex portion 4.
[0022] また、グリップ部材 Gの凹部 8bと把持部 3の凸部 4との凹凸係合の開始(図 4の Aの 状態)し、その後、さらにグリップ部材 Gの装着が進む(図 4の矢印方向)と、グリップ部 材 Gの軟質樹脂部の内壁 9aと把持部 3が圧入嵌合を開始(図 4の Bの状態)するよう に、軟質樹脂部の内壁 9aと、硬質樹脂部の内壁 8aと、把持部 3の凸部 4との位置関 係を設定し、軟質樹脂部の内壁 9aの最小内径 Lと、硬質樹脂部の内壁 8aの最小内 径 Mと、把持部 3の最大外径 Nの関係を L< N< Mとする。その後、 口先部材 6の内 壁に形成した雌ねじ部 7を、軸筒本体 2の先端に形成した雄ねじ部 5に螺着して筆記 具の軸筒を得ている。図示はしていないが、筆記具として使用する場合には、軸筒内 には、先端にボールペンチップを装着したボールペンレフィルを収納する。  In addition, the concavo-convex engagement between the concave portion 8b of the grip member G and the convex portion 4 of the grip portion 3 is started (state of A in FIG. 4), and thereafter the mounting of the grip member G proceeds (FIG. 4 And the inner wall 9a of the soft resin portion and the hard resin portion so that the inner wall 9a of the soft resin portion of the grip member G and the grip portion 3 start press fitting (state B in FIG. 4). The positional relationship between the inner wall 8a and the convex portion 4 of the grip portion 3 is set, and the minimum inner diameter L of the inner wall 9a of the soft resin portion, the minimum inner diameter M of the inner wall 8a of the hard resin portion, and the maximum diameter of the grip portion 3 The relationship of the outer diameter N is L <N <M. Thereafter, the female screw 7 formed on the inner wall of the tip member 6 is screwed to the male screw 5 formed on the tip of the barrel body 2 to obtain the barrel of the writing tool. Although not shown, when used as a writing instrument, a ballpoint pen refill fitted with a ballpoint pen tip at the tip is housed in the shaft cylinder.
[0023] 硬質樹脂の軸筒本体 2の把持部 3に形成した凸部 4と、グリップ部材 Gの硬質樹脂 部 8の内壁 8aに形成した凹部 8bとを凹凸係合するので、グリップ部材 Gの位置出し が容易なり、さらに、軟質樹脂部 9の内壁 9aが、軸筒本体 2の把持部 3に圧入嵌合す るので、グリップ部材 Gのガタツキ及び回転を確実に防止する。  The convex portion 4 formed on the grip portion 3 of the hard cylinder main body 2 and the concave portion 8b formed on the inner wall 8a of the hard resin portion 8 of the grip member G engage with each other. Positioning becomes easy, and furthermore, since the inner wall 9a of the soft resin portion 9 is press-fit fitted to the grip portion 3 of the barrel body 2, rattling and rotation of the grip member G are reliably prevented.
[0024] また、硬質樹脂の軸筒本体 2の把持部 3に形成した凸部 4と、グリップ部材 Gの硬質 樹脂部 8の内壁 8aに形成した凹部 8bとを凹凸係合を開始した後に、軟質樹脂部 9の 内壁  After the convex portion 4 formed on the grip portion 3 of the hard cylinder main body 2 and the concave portion 8b formed on the inner wall 8a of the hard resin portion 8 of the grip member G are engaged with each other, Soft resin part 9 inner wall
9aが、軸筒本体 2の把持部 3に圧入嵌合を開始することによって、圧入前にグリップ 部材 Gの位置出しができるので、さらに組立が容易なるので好ましい。  Since the positioning of the grip member G can be performed before the press-fitting by starting the press-fitting into the grip portion 3 of the barrel body 2, the assembly 9a is preferable because the assembly is further facilitated.
[0025] また、グリップ部材 Gのどちらか一方、好ましくは両方の端面 9bを軟質樹脂で形成 することにより、 口先部材 6を螺合する時に、軟質樹脂 9を圧縮して保持することがで き、寸法精度を厳密にしなくても、或いは経時による寸法変化等により、 口先部材 6と グリップ部材 Gとの間に隙間が形成されなレ、ので好ましレ、。  Further, by forming one or both, preferably both end surfaces 9 b of the grip member G with soft resin, the soft resin 9 can be compressed and held when the tip member 6 is screwed. The gap is not formed between the fore-end member 6 and the grip member G, even if the dimensional accuracy is not strictly defined or the dimensional change due to the passage of time, etc.
[0026] 本実施の形態では、便宜上、軟質樹脂部 9の内壁 9aの最小内径 Lと、硬質樹脂部 8の最小内径 Mと、把持部 3の最大外径 Nの関係を L< N< Mとし、把持部 3に形成 した凸部 4と、硬質樹脂部 8に形成した凹部 8bとが係合を開始した後に、軟質樹脂部 9の内壁 9aが軸筒 1の把持部 3に圧入するようにしてある力 図示はしていないが、 軟質樹脂部 9の内壁 9aの最小内径と、硬質樹脂部 8の最小内径とを同一とし、軟質 樹脂部 9の内壁 9aに対応する把持部 3の外径と、硬質樹脂部 8の内壁 8aに対応する 把持部 3の外径とを変えることにより、把持部 3に形成した凸部 4と、硬質樹脂部 8に 形成した凹部 8bとが係合を開始した後に、軟質樹脂部 8の内壁 8aが軸筒 1の把持部 3に圧入するようにしてもょレ、。 In the present embodiment, for convenience, the relationship between the minimum inner diameter L of the inner wall 9 a of the soft resin portion 9, the minimum inner diameter M of the hard resin portion 8 and the maximum outer diameter N of the grip portion 3 is given by L <N <M. And the inner wall 9a of the soft resin portion 9 is pressed into the grip portion 3 of the barrel 1 after engagement of the convex portion 4 formed in the grip portion 3 and the recess 8b formed in the hard resin portion 8 is started. Although not shown, the minimum inner diameter of the inner wall 9a of the soft resin portion 9 and the minimum inner diameter of the hard resin portion 8 are the same, and A convex portion 4 formed on the grip portion 3 by changing the outer diameter of the grip portion 3 corresponding to the inner wall 9a of the resin portion 9 and the outer diameter of the grip portion 3 corresponding to the inner wall 8a of the hard resin portion 8; The inner wall 8a of the soft resin portion 8 may be pressed into the grip portion 3 of the barrel 1 after the engagement with the concave portion 8b formed in the hard resin portion 8 is started.
[0027] また、本実施例では、グリップ装着用係合部として凸部 4を例示し、被係合部として 凹部 8bを例示したが、これに限定されず、グリップ装着用係合部として凹部または凸 部と凹部との組み合わせを使用することも可能であり、被係合部として前記グリップ装 着用係合部に対応して凸部ゃ凹部と凸部との組み合わせを使用することも可能であ る。 Further, in the present embodiment, the convex portion 4 is illustrated as the grip mounting engaging portion, and the concave portion 8b is illustrated as the engaged portion. However, the present invention is not limited to this. Alternatively, it is possible to use a combination of a convex portion and a concave portion, and it is also possible to use a combination of a convex portion, a concave portion and a convex portion corresponding to the grip-wearing engagement portion as the engaged portion. is there.
さらに、本実施例では、把持部 3に圧入する軟質樹脂部 9の内壁 9aを先端部に配 置したが、これに限定されず、後端部や中央部に配置することも可能である。例えば 、前記圧入が行われる部分を後端部に配置し、先端部分の軟質樹脂部 9の内壁 9a と把持部 3とが圧入せず、 口先部材 6で圧縮可能な構成とすることも可能である。さら に、本実施例では、把持部 3とグリップ部材 Gとが圧入する構成と、軟質樹脂 9を端部 に設ける構成の両方を使用したが、何れか一方の構成のみを備えた軸筒 1とすること も可能である。  Furthermore, in the present embodiment, the inner wall 9a of the soft resin portion 9 to be press-fit into the grip portion 3 is disposed at the front end, but is not limited thereto. For example, it is possible to arrange the portion where the press-fit is performed at the rear end portion, and make the inner end portion 9a of the soft resin portion 9 at the tip end portion and the grip portion 3 not press-fit. is there. Furthermore, in the present embodiment, both the configuration in which the grip portion 3 and the grip member G are press-fit and the configuration in which the soft resin 9 is provided at the end portion are used. It is also possible to
産業上の利用可能性  Industrial applicability
[0028] 軸筒にクリップや文字や絵などの装飾を施し、軸筒とグリップ部材の位置の特定が 不可欠な用途にも適用できる。 The present invention can be applied to an application where it is necessary to decorate the shaft cylinder with clips, characters, pictures and the like and to specify the positions of the shaft cylinder and the grip member.
図面の簡単な説明  Brief description of the drawings
[0029] [図 1]本発明の筆記具の軸筒の実施例の説明図であり、図 1 Aは本発明の筆記具の 軸筒を示す一部省略した要部縦断面図であり、図 1Bは図 1 Aの矢印 IB方向から見 た上面図である。  FIG. 1A is an explanatory view of an embodiment of a barrel of a writing instrument according to the present invention, and FIG. 1A is a partly omitted longitudinal sectional view showing the barrel of the writing instrument according to the present invention; Is a top view seen from the direction of arrow IB in FIG. 1A.
[図 2]図 1における組立前の筆記具の軸筒を示す図である。  FIG. 2 is a view showing a barrel of the writing instrument before assembly in FIG.
[図 3]図 1Aの ΠΙ_ΠΙ線断面図である。  FIG. 3 is a cross-sectional view taken along the line ΠΙ_ΠΙ in FIG. 1A.
[図 4]筆記具の軸筒におけるのグリップ部材の組立行程を示す図であり、図 4Αはダリ ップ装着用係合部と被係合部とが係合を開始した状態の説明図、図 4Βはグリップ部 材の内壁と把持部とが圧入嵌合を開始した状態の説明図である。 符号の説明 FIG. 4 is a view showing the assembly process of the grip member in the barrel of the writing instrument, and FIG. 4 is an explanatory view of a state in which the engagement portion for mounting the drip and the engaged portion have started to be engaged; 4 is an explanatory view of a state in which the inner wall of the grip member and the grip portion have started press-fitting. Explanation of sign
1 筆記具の軸筒、 1 Shaft of writing instrument,
2 軸筒本体、 2-shaft cylinder body,
3 把持部、 3 grips,
4 凸部 (グリップ装着用係合部)、 4 convex part (gripping attachment engaging part),
5 雄ねじ部、 5 male threads,
6 口先部材、  6 mouthpieces,
7 雌ねじ部、  7 female screw,
8 硬質樹脂、  8 hard resin,
8a 硬質樹脂部の内壁、  8a Inner wall of hard resin part,
8b 凹部 (被係合部)、  8b Recess (engaged part),
9 軟質樹脂部、  9 Soft resin part,
9a 軟質樹脂部の内壁。  9a Inner wall of soft resin part.

Claims

請求の範囲 The scope of the claims
グリップ装着用係合部を有し軸筒の他の部分よりも小径の把持部と、前記グリップ装 着用係合部と係合する被係合部を有し前記グリップ装着用係合部と前記被係合部と が係合して周方向の位置決めがされて前記把持部に装着されるグリップ部材と、を 有する筆記具の軸筒であって、 The grip attachment portion has a grip attachment portion and a grip portion having a diameter smaller than that of the other portion of the barrel, and an engaged portion engaged with the grip attachment engagement portion. A grip member which is engaged with the engaged portion, is positioned in the circumferential direction, and is mounted on the grip portion;
硬質樹脂と軟質樹脂との二色成形により形成され、前記硬質樹脂の一部が外部に 露出し且つ内部に前記硬質樹脂と前記軟質樹脂とが露出するとともに、内部に露出 した前記硬質樹脂に前記グリップ装着用係合部が形成された前記グリップ部材を備 えた前記筆記具の軸筒。  The hard resin and the soft resin are formed by two-color molding of a hard resin and a soft resin, a part of the hard resin is exposed to the outside, the hard resin and the soft resin are exposed to the inside, and the hard resin is exposed to the inside. An axis cylinder of the writing instrument provided with the grip member in which a grip attachment portion is formed.
前記グリップ部材の軸方向の少なくとも一方の端部が前記軟質樹脂で形成されたグ リップ部材を備えた請求項 1に記載の筆記具の軸筒。 The cylinder of the writing instrument according to claim 1, wherein at least one axial end of the grip member includes a grip member formed of the soft resin.
内部に露出した前記軟質樹脂の内壁が前記把持部に圧入嵌合して前記把持部に 装着される前記グリップ部材を有する請求項 1または 2に記載の筆記具の軸筒。 前記グリップ装着用係合部と、前記硬質樹脂に形成された前記被係合部とが係合を 開始した後に、前記軟質樹脂の内壁が軸筒の把持部に圧入嵌合を開始することを 特徴とする請求項 3に記載の筆記具の軸筒。 The cylinder of the writing instrument according to claim 1 or 2, further comprising the grip member mounted on the grip portion by press-fitting the inner wall of the soft resin exposed to the inside into the grip portion. After the engagement portion for grip attachment and the engaged portion formed in the hard resin start to be engaged, the inner wall of the soft resin starts press-fitting into the grip portion of the barrel. The barrel of the writing instrument according to claim 3, characterized in that:
前記グリップ部材が、軸筒と色の異なる硬質樹脂、軸筒及び硬質樹脂と色の異なる 軟質樹脂で形成したことを特徴とする請求項 1ないし 4のいずれかに記載の筆記具 の軸筒。 The writing cylinder according to any one of claims 1 to 4, wherein the grip member is formed of a hard resin different in color from the shaft cylinder, and a soft resin different in color from the shaft cylinder and the hard resin.
PCT/JP2004/010723 2003-07-31 2004-07-28 Shaft tube for writing implement WO2005012001A1 (en)

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JP2003283900 2003-07-31

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JP3071682U (en) * 2000-03-13 2000-09-14 ミクロ株式会社 Writing implement
JP2002002182A (en) * 2000-06-22 2002-01-08 Kotobuki:Kk Grip for writing implement and writing shaft body
JP2003025784A (en) * 2001-07-23 2003-01-29 Micro Kk Writing instrument and method for manufacturing its grip cylinder

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8775141B2 (en) 2007-07-02 2014-07-08 Schlumberger Technology Corporation System and method for performing oilfield simulation operations
EP2221186A1 (en) * 2007-11-14 2010-08-25 Mitsubishi Pencil Company, Limited Writing implement
EP2221186A4 (en) * 2007-11-14 2013-10-23 Mitsubishi Pencil Co Writing implement
JP2015174326A (en) * 2014-03-14 2015-10-05 ゼブラ株式会社 writing instrument

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CN100475553C (en) 2009-04-08
JPWO2005012001A1 (en) 2007-09-27
JP4364868B2 (en) 2009-11-18
CN1832866A (en) 2006-09-13

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