JP2002337495A - Grip member of writing instrument - Google Patents

Grip member of writing instrument

Info

Publication number
JP2002337495A
JP2002337495A JP2001145799A JP2001145799A JP2002337495A JP 2002337495 A JP2002337495 A JP 2002337495A JP 2001145799 A JP2001145799 A JP 2001145799A JP 2001145799 A JP2001145799 A JP 2001145799A JP 2002337495 A JP2002337495 A JP 2002337495A
Authority
JP
Japan
Prior art keywords
grip member
writing instrument
peripheral surface
barrel
grip
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
JP2001145799A
Other languages
Japanese (ja)
Inventor
Arata Inoue
新 井上
Takeo Fukumoto
剛生 福本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Pencil Co Ltd
Original Assignee
Mitsubishi Pencil Co Ltd
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 Mitsubishi Pencil Co Ltd filed Critical Mitsubishi Pencil Co Ltd
Priority to JP2001145799A priority Critical patent/JP2002337495A/en
Publication of JP2002337495A publication Critical patent/JP2002337495A/en
Withdrawn legal-status Critical Current

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  • Pens And Brushes (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a grip member which can be easily attached to a barrel and in which no problem occurs on an appearance after attaching. SOLUTION: The grip member of the writing instrument is made of a thermoplastic elastomer, rubber or the like attached to the barrel of the instrument. The grip member is uniformly provided with a ruggedness having numerous fine strips in an axial direction of the inner peripheral surface of the member.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は、筆記具の軸筒に取け付
けられる滑り止め用のグリップの改良に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a non-slip grip attached to a barrel of a writing instrument.

【0002】[0002]

【従来の技術】従来、筆記具では長時間筆記をする場合
などに握り部が滑ったり、指が痛くなったりすることを
解消するために軸筒の握り部にゴムなどの軟質材料を被
嵌した筆記具が知られている。また筆記具の軸筒に取り
付けられるグリップ部材は、シリコンゴムやNBRなど
のゴム、熱可塑性エラストマーなどで成形されている。
ところで、このようなグリップ部材は、軟質性で取り扱
いにくく、通常は内面が滑らかに形成されているため、
軸筒に挿入して取付ける際に軸筒の外面とグリップ部材
の内面とが吸着状に密着することによって著しくグリッ
プ部材の取付が困難となり、極めて生産性が悪い問題が
あった。またグリップ部材を取付けた状態に於いて、軸
筒の外面とグリップ部材の内面との間には密着部と非密
着部とがランダムに形成され、グリップ部材が透明ある
いは半透明の場合にはしみ状のまだらが発生して外観を
悪くする問題がある。
2. Description of the Related Art Conventionally, in a writing instrument, a soft material such as rubber is fitted on a grip portion of a shaft cylinder in order to prevent a grip portion from slipping and a finger from being hurt when writing for a long time. Writing instruments are known. The grip member attached to the barrel of the writing instrument is formed of rubber such as silicone rubber or NBR, thermoplastic elastomer, or the like.
By the way, such a grip member is soft and difficult to handle, and usually has a smooth inner surface.
At the time of insertion into the shaft cylinder and mounting, the outer surface of the shaft cylinder and the inner surface of the grip member are in close contact with each other in a suction-like manner, so that the mounting of the grip member becomes extremely difficult, resulting in a problem of extremely low productivity. In addition, when the grip member is attached, a contact portion and a non-contact portion are randomly formed between the outer surface of the barrel and the inner surface of the grip member. There is a problem that the appearance is bad due to the occurrence of mottled shapes.

【0003】またその問題を解決する為に、グリップ部
材を成形する際にその内面を形成する金型のコアピンの
外面に、ブラスト加工や放電加工で梨地状の粗面を形成
することによって摩擦抵抗を小さくするようにしたもの
が知られているが、粗面の形状によっては取付にくくな
ったり、透明あるいは半透明なグリップ部材の場合に外
観上の欠点が更に生じるなどの問題が存在する。
In order to solve the problem, a frictional resistance is obtained by forming a matte rough surface by blasting or electric discharge machining on an outer surface of a core pin of a mold which forms an inner surface when forming a grip member. However, there is a problem that it is difficult to mount the grip member depending on the shape of the rough surface, and furthermore, a transparent or translucent grip member causes further defects in appearance.

【0004】[0004]

【発明が解決しようとする課題】本発明は、上記従来例
の問題を解決し、軸筒への取付が容易で、且つ取付後の
外観に問題が発生しないグリップ部材の提供を課題とす
る。
SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems of the prior art and to provide a grip member which can be easily mounted on a barrel and does not cause any problem in appearance after mounting.

【0005】[0005]

【課題を解決するための手段】本発明は、上記課題を達
成する為に以下の構成を有する。請求項1に記載の発明
に係る筆記具のグリップ部材は、筆記具の軸筒に取り付
けられる熱可塑性エラストマー又はゴム等のグリップ部
材に於いて、該グリップ部材の内周面軸方向に無数の微
細な線条の凹凸部を均一に設けられてなる。
The present invention has the following arrangement to achieve the above object. The grip member of the writing instrument according to the first aspect of the present invention is a grip member such as a thermoplastic elastomer or rubber attached to a shaft cylinder of the writing instrument, wherein an infinite number of fine lines are formed in the axial direction of the inner peripheral surface of the grip member. The uneven portion of the stripe is provided uniformly.

【0006】[0006]

【実施例】本発明の筆記具のグリップ部材は、先端に筆
記部を突出あるいは筆記部を出没可能に収容する軸筒に
於いて、筆記に際して軸筒の握り部となる部位に指が滑
ったり、指が痛くなったりすることを解消するために設
けられるものである。図1の筆記具1は、一例としてシ
ャープペンシルで示されており、軸筒2の前方に位置す
る握り部にグリップ部材3が装着され、グリップ部材3
を挟着する状態で軸筒2の前端に先具6が固定されてい
る。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A grip member of a writing instrument according to the present invention includes a shaft cylinder that has a writing portion protruding at the tip or a writing portion that can be protruded and retracted. This is provided to prevent the finger from being hurt. The writing instrument 1 in FIG. 1 is shown by a mechanical pencil as an example, and a grip member 3 is attached to a grip portion located in front of the barrel 2.
The leading tool 6 is fixed to the front end of the shaft cylinder 2 in a state in which is clamped.

【0007】図2はグリップ部材3の半断面図を示して
いる。図に示すように、グリップ部材3は筒体をなし、
その外周面には滑り止めや装飾性を目的として、溝や凹
凸部が形成され、内周面には軸方向に無数の微細な線条
の凹凸部5が均一に形成されている。また凹凸部5の底
部及び頂部の形状は略U字あるいはV字状で形成され、
着色半透明の熱可塑性エラストマーで肉厚を略1mmと
した場合、その高さは20μm〜45μmとなされる。
また20μm以下だとグリップ部材取付けの容易性の効
果が低く、高さを45μm以上とすると凹凸部の痕跡が
外面に現れてくる問題がある。
FIG. 2 shows a half sectional view of the grip member 3. As shown in the figure, the grip member 3 forms a cylindrical body,
Grooves and irregularities are formed on the outer peripheral surface for the purpose of preventing slippage and decorativeness, and countless fine linear irregularities 5 are uniformly formed on the inner peripheral surface in the axial direction. The shape of the bottom and top of the uneven portion 5 is formed in a substantially U-shape or V-shape,
When the thickness is about 1 mm with a colored translucent thermoplastic elastomer, the height is 20 μm to 45 μm.
When the thickness is 20 μm or less, the effect of easy attachment of the grip member is low, and when the height is 45 μm or more, there is a problem that traces of the uneven portions appear on the outer surface.

【0008】またグリップ部材3の材質としては、シリ
コ−ンゴム、エチレンプロピレンゴム、や熱可塑性エラ
ストマ−などの透明性のある材質や半透明性の材質、ま
た着色半透明性の材質などが選ばれる。またグリップ部
材の内周面に軸方向に無数の微細な線条の凹凸部を均一
に形成する手段としては、射出成形型のコアピンにエッ
チング加工あるいは機械加工によって行うことができ
る。
As the material of the grip member 3, a transparent or translucent material such as silicone rubber, ethylene propylene rubber, or thermoplastic elastomer, or a colored translucent material is selected. . Means for uniformly forming an infinite number of fine linear irregularities on the inner peripheral surface of the grip member in the axial direction can be performed by etching or machining a core pin of an injection mold.

【0009】[0009]

【作用】グリップ部材3を軸筒2に装着する場合には、
グリップ部材の内周面4に形成された線条の凸部が軸筒
の外周面を線接触し、摩擦抵抗が軽減された状態でグリ
ップ部材がスムーズに摺動する。またグリップ部材の挿
着後に於いては、微細な線条の凸部が軸筒の外周面に線
接触した状態にあるので、面接触によりまだら状のしみ
が発生しない。また、従来例の梨地状の凹凸部に於いて
は、透明なグリップ部材の場合に、透明性を目立たせる
のに難があるが、線条の凹凸部の場合には乗船の凸部を
適宜間隔に設けるなどによって透明性を目立たせる効果
が期待できる。また凹凸部の高を45μm以上とした場
合にはその凹凸部の痕跡が目立つようになるが、軸方向
に均一に形成された凹凸部を逆に浮き出させて装飾効果
を上げることが期待できる。
When the grip member 3 is mounted on the barrel 2,
The projections of the filaments formed on the inner peripheral surface 4 of the grip member make line contact with the outer peripheral surface of the shaft cylinder, and the grip member slides smoothly with reduced frictional resistance. In addition, after the grip member is attached, the projections of the fine filaments are in line contact with the outer peripheral surface of the barrel, so that mottled spots do not occur due to surface contact. Further, in the case of a conventional satin-like uneven portion, in the case of a transparent grip member, it is difficult to make the transparency stand out, but in the case of a linear uneven portion, the convex portion of the embarkation is appropriately adjusted. The effect of making the transparency conspicuous can be expected by providing at intervals. When the height of the uneven portion is set to 45 μm or more, traces of the uneven portion become conspicuous, but it is expected that the uneven portion uniformly formed in the axial direction is raised in reverse to enhance the decorative effect.

【0010】[0010]

【発明の効果】本発明は、グリップ部材の内周面に形成
された線条の凸部が軸筒の外周面に線接触し、摩擦抵抗
が軽減された状態で装着されるのでグリップ部材の取付
が容易となり、生産性が良くなり、且つグリップ部材の
挿着後に於いては、微細な線条の凸部が軸筒の外周面に
線接触した状態にあるので、グリップ部材と軸筒との間
にまだら状のしみが発生して外観を悪くする問題が解決
可能となる。
According to the present invention, the grip member is mounted in a state where the protrusion of the filament formed on the inner peripheral surface of the grip member comes into line contact with the outer peripheral surface of the shaft cylinder and the frictional resistance is reduced. Mounting is easy, productivity is improved, and after the grip member is inserted, the fine ridges are in line contact with the outer peripheral surface of the barrel. The problem that mottled spots are generated between them and the appearance is deteriorated can be solved.

【図面の簡単な説明】[Brief description of the drawings]

【図1】軸筒にグリップ部材を取付けた筆記具の一実施
例を示す外観図である。
FIG. 1 is an external view showing an embodiment of a writing instrument in which a grip member is attached to a shaft cylinder.

【図2】実施例であるグリップ部材の半断面図である。FIG. 2 is a half sectional view of a grip member according to the embodiment.

【符号の説明】[Explanation of symbols]

1 筆記具 2 軸筒 3 グリップ部材 4 内周面 5 凹凸部 6 先具 DESCRIPTION OF SYMBOLS 1 Writing implement 2 Shaft cylinder 3 Grip member 4 Inner peripheral surface 5 Uneven part 6 Tip

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 筆記具の軸筒に取り付けられる熱可塑性
エラストマー又はゴム等のグリップ部材に於いて、該グ
リップ部材の内周面軸方向に無数の微細な線条の凹凸部
を均一に設けたことを特徴とする筆記具のグリップ部
材。
1. A grip member such as a thermoplastic elastomer or rubber attached to a shaft barrel of a writing instrument, in which countless fine linear irregularities are uniformly provided in an axial direction of an inner peripheral surface of the grip member. A grip member for a writing instrument, characterized in that:
JP2001145799A 2001-05-16 2001-05-16 Grip member of writing instrument Withdrawn JP2002337495A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001145799A JP2002337495A (en) 2001-05-16 2001-05-16 Grip member of writing instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001145799A JP2002337495A (en) 2001-05-16 2001-05-16 Grip member of writing instrument

Publications (1)

Publication Number Publication Date
JP2002337495A true JP2002337495A (en) 2002-11-27

Family

ID=18991551

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001145799A Withdrawn JP2002337495A (en) 2001-05-16 2001-05-16 Grip member of writing instrument

Country Status (1)

Country Link
JP (1) JP2002337495A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005000600A1 (en) * 2003-06-26 2005-01-06 Kabushiki Kaisha Pilot Corporation Writing instrument
WO2019003548A1 (en) * 2017-06-26 2019-01-03 倉松 八代 Writing tool gripping part having gripping guide
JP2019006102A (en) * 2017-06-26 2019-01-17 倉松 八代 Writing instrument holding part with guide for holding manner

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005000600A1 (en) * 2003-06-26 2005-01-06 Kabushiki Kaisha Pilot Corporation Writing instrument
JPWO2005000600A1 (en) * 2003-06-26 2006-11-30 株式会社パイロットコーポレーション Writing instrument shaft
US7794164B2 (en) 2003-06-26 2010-09-14 Kabushiki Kaisha Pilot Corporation Layered gripping member for a writing instrument
JP4602250B2 (en) * 2003-06-26 2010-12-22 株式会社パイロットコーポレーション Writing instrument shaft
WO2019003548A1 (en) * 2017-06-26 2019-01-03 倉松 八代 Writing tool gripping part having gripping guide
JP2019006102A (en) * 2017-06-26 2019-01-17 倉松 八代 Writing instrument holding part with guide for holding manner

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Legal Events

Date Code Title Description
A300 Withdrawal of application because of no request for examination

Free format text: JAPANESE INTERMEDIATE CODE: A300

Effective date: 20080805