JP4132383B2 - Writing instrument cap - Google Patents

Writing instrument cap Download PDF

Info

Publication number
JP4132383B2
JP4132383B2 JP10447099A JP10447099A JP4132383B2 JP 4132383 B2 JP4132383 B2 JP 4132383B2 JP 10447099 A JP10447099 A JP 10447099A JP 10447099 A JP10447099 A JP 10447099A JP 4132383 B2 JP4132383 B2 JP 4132383B2
Authority
JP
Japan
Prior art keywords
cap
blocking wall
inner member
writing instrument
wall
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.)
Expired - Fee Related
Application number
JP10447099A
Other languages
Japanese (ja)
Other versions
JP2000289383A (en
Inventor
洋康 安部
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.)
Pilot Ink Co Ltd
Original Assignee
Pilot Ink 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 Pilot Ink Co Ltd filed Critical Pilot Ink Co Ltd
Priority to JP10447099A priority Critical patent/JP4132383B2/en
Publication of JP2000289383A publication Critical patent/JP2000289383A/en
Application granted granted Critical
Publication of JP4132383B2 publication Critical patent/JP4132383B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Description

【0001】
【発明の属する技術分野】
本発明は、筆記具のキャップに関する。詳細には、ペン先と当接する内部材をキャップ本体内に収容した筆記具のキャップに関する。本発明において、「前」とは閉塞側を指し、「後」とは開口側を指す。
【0002】
【従来の技術】
従来、垂直面状外面を有する閉塞壁を備えたキャップ本体内に、ペン先と当接しペン先の乾燥を防止する内部材(例えば、弾性体、多孔質体等)を収容したものは広く知られている。
【0003】
【発明が解決しようとする課題】
しかし、図5に示すように、キャップ本体2aが傾斜面状外面を有する閉塞壁21aを備え、内部材3aが、両端に垂直面を有する場合、ただ単に、内部材3aの外周面をキャップ本体2a内周面によって径方向にのみ保持した構造であると、キャップ1aを筆記具本体5aのペン先2a側に装着した際、ペン先2aの前方への押圧により、内部材3aが斜めになってしまい、ペン先2aが折れ曲がるおそれがある。
【0004】
本発明は前記課題を解決するものであって、キャップ本体が、傾斜面状外面を有する閉塞壁を備えたとしても、ペン先が当接した際に内部材を斜めにすることがなく、内部材が安定保持される筆記具のキャップを提供しようとするものである。
【0005】
【課題を解決するための手段】
〔1〕本発明は、ペン先と当接する内部材3をキャップ本体2内に収容した筆記具のキャップ1であって、前記キャップ本体2が、前端に傾斜面状外面を有する閉塞壁21を備え且つ後端に開口部22を備えた有底筒体よりなり、前記内部材3が、軸線に対して垂直な当接部31を前面に有し、前記閉塞壁21の内面に、前記内部材3の当接部31と軸方向に当接し且つ前記当接部31を軸線に対して垂直に支持する支持部23を設け、前記閉塞壁21が傾斜面状内面を有し、前記閉塞壁21の傾斜面状内面から軸方向の長さの異なる縦リブよりなる支持部23を一体に突設したこと(請求項1)を特徴とする。
【0006】
前記キャップ本体2内に前記内部材3を収容したとき、前記内部材3の前面に形成した軸線に対して垂直な当接部31は、閉塞壁21内面の支持部23と、軸線に対して垂直に当接支持されている。それにより、前記内部材3は、ペン先の押圧によっても、斜めになることがなく、前記キャップ本体2内に安定保持されている。
【0007】
【0008】
【0009】
キャップ本体2を合成樹脂材料の射出成形により得る場合、閉塞壁21内面から一体に突設された軸方向に延びる縦リブにより構成したことによって、閉塞壁21の肉厚変動部分が少なくなり、閉塞壁21外面に、肉厚変動により生じる凹み(いわゆるヒケ)を十分に防止できる。もし仮に、前記縦リブによらず、閉塞壁21内面に垂直平面によりなる支持部21を設ける場合、閉塞壁21が傾斜面状外面と垂直平面状内面とからなるため、閉塞壁21の肉厚変動部分が広くなり、閉塞壁21の外面に大きなヒケが発生するおそれがある。
【0010】
また、前記縦リブが、閉塞壁21の傾斜面状内面より軸方向の長さが異なる構成であるため、支持部23の当接面を軸線に対して垂直面状に配設することができ、閉塞壁21の内面が傾斜面状であっても、内部材3を安定的に保持可能な支持部23を容易に設けることができる。
【0011】
尚、前記縦リブは、板状突出部(例えば、十字状等の放射状縦リブ、複数の分散状縦リブ、円筒状縦リブ等)であり、閉塞壁21の傾斜面状の内面より軸方向に一体に連設されていればよく、キャップ本体2内周面とは径方向に一体に連設されていても、いなくてもよい。
【0012】
〕前記請求項1の筆記具のキャップ1において、前記閉塞壁21の傾斜面状外面に表示部を設けること(請求項)が好ましい。
【0013】
前記表示部とは、筆記具本体のペン先サイズやインキ色を表すものであり、文字や図形等よりなる。前記表示部を、閉塞壁21の傾斜面状外面に設けたことにより、陳列状態にある筆記具を、購入時、消費者が容易に識別することができる。
【0014】
また、前記閉塞壁21の傾斜面状の外面は、特に、請求項の構成により、ヒケの発生が抑えられているため、平滑面を維持でき、そこに表示部を印刷等により確実に設けることができる。
【0015】
【発明の実施の形態】
本発明の実施の形態について図面に従って説明する。
【0016】
図1〜図4に本発明・筆記具のキャップ1の一実施例を示す。キャップ1は、多孔質体よりなる内部材3と、その内部材3を内部に収容したキャップ本体2とからなる。
【0017】
前記キャップ本体2は、後端に開口部22を有し、前端に傾斜面状の閉塞壁21を有する有底円筒状体であり、合成樹脂(例えばポリプロピレン、ポリエチレン等)の射出成形により得られる。また、前記キャップ本体2の閉塞側外周面には、クリップ26(図1及び図4の二点鎖線部分)が一体に設けられている。また、前記閉塞壁21の傾斜面状の外面には、ペン先サイズを表示する「太」、「中」、「細」等の文字からなる表示部が印刷されている。
【0018】
前記傾斜面状の閉塞壁21は、軸線に対する垂直面に対し傾斜した外面及び内面を有する。また、前記閉塞壁21は、その外面及び内面が互いに平行であり、均一の肉厚を有する。
【0019】
また、前記閉塞壁21の内面、及び前記閉塞壁21内面より前方に連接するキャップ本体2内周面には、支持部23となる軸方向に延びる縦リブが、十字状(放射状)に一体に形成されている。前記縦リブよりなる支持部23の後端面(当接面)は、内部材3の前面の垂直面状の当接部31と軸方向に当接支持される。また、前記縦リブは、クリップ側とクリップ反対側とでは、閉塞壁21内面から支持部23までの軸方向の長さが異なり、クリップ反対側に比べクリップ側の方が短く設定されている。
【0020】
さらに、前記支持部23の後方のキャップ本体2内周面には、内部材3の円周状外周面を径方向に圧接保持する円周状の保持部24が形成されている。また、前記保持部24の後方のキャップ本体2内周面には、等間隔に複数本(ここでは8本)の軸方向に延びる縦リブよりなるガイド部25が一体に形成されている。前記ガイド部25により、内部材3を円滑に保持部24へ挿入収容させることができる。
【0021】
前記内部材3は、外周面が横断面円形状であり且つ両端面が軸線に対して垂直面状である円柱体である。前記内部材3は、多孔質材料(例えば、フェルト加工体、繊維の樹脂加工体、合成樹脂の発泡体等)よりなる。
【0022】
尚、前記内部材3は、例えば、ペン先がボールペンチップ又は小管状ペン体等の場合は、ペン先を密封する弾性体(例えば、合成ゴムや熱可塑性エラストマー等)よりなるものが好ましく、また、ペン先がプラスチック押出成形ペン体や繊維ペン体等の場合は、多孔質体が好ましく、それにより、ペン先上向き状態でのペン先からのインキの下降やペン先からのインキの蒸発を防止する。
【0023】
【発明の効果】
請求項1の筆記具のキャップは、内部材が、ペン先の押圧によっても斜めになることがなく、キャップ本体内に安定保持される。
【0024】
請求項の筆記具のキャップは、キャップ本体を合成樹脂材料の射出成形により得る場合、閉塞壁の肉厚変動部分が少なくなり、閉塞壁外面にヒケが発生することを十分に防止できる。
【0025】
請求項の筆記具のキャップは、表示部を、閉塞壁21の傾斜面状外面に設けたことにより、陳列状態にある筆記具を、購入時、消費者が容易に識別することができる。特に、前記請求項の構成と相まって、ヒケのない閉塞壁外面に、表示部を印刷等により確実に設けることができる。
【図面の簡単な説明】
【図1】本発明の実施例を示す縦断面図である
【図2】図1のA−A線断面図である。
【図3】図1のB−B線断面図である。
【図4】図1のキャップ本体を示す縦断面図である。
【図5】従来の不具合を説明する図である。
【符号の説明】
1 キャップ
2 キャップ本体
21 閉塞壁
22 開口部
23 支持部(縦リブ)
24 保持部
25 ガイド部(縦リブ)
26 クリップ
3 内部材
31 当接部
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a writing instrument cap. In detail, it is related with the cap of the writing instrument which accommodated the inner member contact | abutted with a nib in the cap main body. In the present invention, “front” refers to the closed side, and “rear” refers to the open side.
[0002]
[Prior art]
Conventionally, a cap body having a closed wall having a vertical outer surface and containing an inner member (for example, an elastic body, a porous body, etc.) that contacts the pen tip and prevents the pen tip from drying is widely known. It has been.
[0003]
[Problems to be solved by the invention]
However, as shown in FIG. 5, when the cap body 2a includes the blocking wall 21a having the inclined outer surface and the inner member 3a has vertical surfaces at both ends, the outer surface of the inner member 3a is simply used as the cap body. When the cap 1a is mounted on the pen tip 2a side of the writing instrument body 5a, the inner member 3a is inclined by the forward pressing of the pen tip 2a. As a result, the pen tip 2a may be bent.
[0004]
The present invention solves the above-mentioned problem, and even if the cap body has a blocking wall having an inclined outer surface, the inner member is not inclined when the pen tip comes into contact with the cap body. An object of the present invention is to provide a writing instrument cap in which a material is stably held.
[0005]
[Means for Solving the Problems]
[1] The present invention is a writing instrument cap 1 in which an inner member 3 that comes into contact with a pen tip is accommodated in a cap body 2, and the cap body 2 includes a closing wall 21 having an inclined outer surface at the front end. The inner member 3 has a contact portion 31 perpendicular to the axis on the front surface, and the inner member 3 the contact portion 31 and the axial direction of 3 abuts and provided a support portion 23 for supporting vertically the contact portion 31 relative to the axis, the closing wall 21 has an inclined surface shaped inner surface, said closing wall 21 The support part 23 which consists of the vertical rib from which the length of an axial direction differs from the inclined surface inner surface of this is integrally projected (Claim 1), It is characterized by the above-mentioned.
[0006]
When the inner member 3 is accommodated in the cap body 2, the abutting portion 31 perpendicular to the axis formed on the front surface of the inner member 3 is connected to the support portion 23 on the inner surface of the blocking wall 21 and the axis. It is abutted and supported vertically. Thereby, the inner member 3 is stably held in the cap body 2 without being inclined even when the pen tip is pressed.
[0007]
[0008]
[0009]
When the cap body 2 is obtained by injection molding of a synthetic resin material, it is constituted by vertical ribs extending in the axial direction integrally projecting from the inner surface of the blocking wall 21. It is possible to sufficiently prevent a dent (so-called sink) caused by the wall thickness variation on the outer surface of the wall 21. If the supporting portion 21 having a vertical plane is provided on the inner surface of the blocking wall 21 regardless of the vertical ribs, the wall of the blocking wall 21 is thick because the blocking wall 21 includes an inclined outer surface and a vertical planar inner surface. There is a possibility that the fluctuating part becomes wide and large sink marks are generated on the outer surface of the blocking wall 21.
[0010]
Further, since the longitudinal rib has a configuration in which the length in the axial direction is different from that of the inclined plane inner surface of the blocking wall 21, the contact surface of the support portion 23 can be arranged in a plane perpendicular to the axis. Even if the inner surface of the blocking wall 21 is inclined, the support portion 23 that can stably hold the inner member 3 can be easily provided.
[0011]
The vertical ribs are plate-like protrusions (for example, radial vertical ribs such as a cross, a plurality of dispersed vertical ribs, cylindrical vertical ribs, etc.), and are axially directed from the inclined inner surface of the blocking wall 21. The cap body 2 may or may not be continuous with the inner peripheral surface of the cap body 2 in the radial direction.
[0012]
[ 2 ] In the cap 1 of the writing instrument according to the first aspect, it is preferable to provide a display portion on the inclined outer surface of the blocking wall 21 (Claim 2 ).
[0013]
The display unit represents the pen tip size or ink color of the writing instrument body, and is composed of characters, figures, and the like. By providing the display unit on the inclined outer surface of the blocking wall 21, the consumer can easily identify the writing instrument in the display state at the time of purchase.
[0014]
In addition, the slanted outer surface of the blocking wall 21 can maintain a smooth surface because the occurrence of sink marks is suppressed particularly by the configuration of claim 1 , and the display unit is reliably provided there by printing or the like. be able to.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings.
[0016]
1 to 4 show an embodiment of the present invention / writing instrument cap 1. The cap 1 includes an inner member 3 made of a porous body and a cap main body 2 in which the inner member 3 is accommodated.
[0017]
The cap body 2 is a bottomed cylindrical body having an opening 22 at the rear end and an inclined blocking wall 21 at the front end, and is obtained by injection molding of a synthetic resin (for example, polypropylene, polyethylene, etc.). . Further, a clip 26 (two-dot chain line portion in FIGS. 1 and 4) is integrally provided on the outer peripheral surface of the cap body 2 on the closing side. In addition, on the inclined outer surface of the blocking wall 21, a display portion made up of characters such as “thick”, “medium”, and “thin” for displaying the pen tip size is printed.
[0018]
The inclined blocking wall 21 has an outer surface and an inner surface that are inclined with respect to a plane perpendicular to the axis. In addition, the outer wall and the inner surface of the blocking wall 21 are parallel to each other and have a uniform thickness.
[0019]
In addition, on the inner surface of the blocking wall 21 and the inner peripheral surface of the cap body 2 that is connected to the front side of the inner surface of the blocking wall 21, vertical ribs that extend in the axial direction as the support portion 23 are integrally formed in a cross shape (radially). Is formed. The rear end surface (contact surface) of the support portion 23 made of the vertical rib is contacted and supported in the axial direction with the vertical surface contact portion 31 on the front surface of the inner member 3. Further, the length of the vertical rib from the inner surface of the blocking wall 21 to the support portion 23 is different between the clip side and the clip opposite side, and the length of the vertical rib is set shorter on the clip side than on the clip opposite side.
[0020]
Further, a circumferential holding portion 24 is formed on the inner peripheral surface of the cap body 2 behind the support portion 23 to press and hold the circumferential outer peripheral surface of the inner member 3 in the radial direction. Further, a plurality of guide portions 25 (in this case, eight) extending in the axial direction at equal intervals are integrally formed on the inner peripheral surface of the cap body 2 behind the holding portion 24. With the guide portion 25, the inner member 3 can be smoothly inserted and accommodated in the holding portion 24.
[0021]
The inner member 3 is a cylindrical body whose outer peripheral surface is circular in cross section and whose both end surfaces are perpendicular to the axis. The inner member 3 is made of a porous material (for example, a felt processed body, a fiber resin processed body, a synthetic resin foam, or the like).
[0022]
The inner member 3 is preferably made of an elastic body (for example, synthetic rubber or thermoplastic elastomer) that seals the nib when the nib is a ballpoint pen tip or a small tubular pen body, for example. When the pen tip is a plastic extrusion pen or fiber pen, etc., a porous body is preferable, which prevents ink from descending from the pen tip and ink evaporation from the pen tip when the pen tip is upward. To do.
[0023]
【The invention's effect】
The cap of the writing instrument according to claim 1 is stably held in the cap body without the inner member being inclined even when the pen tip is pressed.
[0024]
When the cap body of the writing instrument of claim 1 is obtained by injection molding of a synthetic resin material, the wall thickness variation portion of the blocking wall is reduced, and the occurrence of sink marks on the outer surface of the blocking wall can be sufficiently prevented.
[0025]
The cap of the writing instrument according to claim 2 is provided with the display portion on the inclined outer surface of the blocking wall 21, so that the consumer can easily identify the writing instrument in the display state at the time of purchase. In particular, in combination with the configuration of the first aspect , the display portion can be reliably provided on the outer surface of the closed wall without sink by printing or the like.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention. FIG. 2 is a sectional view taken along line AA in FIG.
FIG. 3 is a cross-sectional view taken along line BB in FIG.
4 is a longitudinal sectional view showing the cap body of FIG. 1. FIG.
FIG. 5 is a diagram for explaining a conventional problem.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cap 2 Cap main body 21 Closure wall 22 Opening part 23 Support part (vertical rib)
24 holding part 25 guide part (vertical rib)
26 Clip 3 Inner member 31 Contact part

Claims (2)

ペン先と当接する内部材(3)をキャップ本体(2)内に収容した筆記具のキャップであって、前記キャップ本体(2)が、前端に傾斜面状外面を有する閉塞壁(21)を備え且つ後端に開口部(22)を備えた有底筒体よりなり、前記内部材(3)が、軸線に対して垂直な当接部(31)を前面に有し、前記閉塞壁(21)の内面に、前記内部材(3)の当接部(31)と軸方向に当接し且つ前記当接部(31)を軸線に対して垂直に支持する支持部(23)を設け、前記閉塞壁(21)が傾斜面状内面を有し、前記閉塞壁(21)の傾斜面状内面から軸方向の長さの異なる縦リブよりなる支持部(23)を一体に突設したことを特徴とする筆記具のキャップ。A cap of a writing instrument in which an inner member (3) that comes into contact with a nib is accommodated in a cap body (2), wherein the cap body (2) includes a blocking wall (21) having an inclined outer surface at a front end. The inner member (3) has a contact portion (31) perpendicular to the axis on the front surface, and has the closed wall (21). On the inner surface of the inner member (3) is provided with a support portion (23) that is in axial contact with the contact portion (31) of the inner member (3) and that supports the contact portion (31) perpendicular to the axis , The blocking wall (21) has an inclined inner surface, and a support portion (23) made of vertical ribs having different axial lengths is integrally projected from the inclined inner surface of the blocking wall (21). Writing instrument cap characterized by. 前記閉塞壁(21)の傾斜面状外面に表示部を設けた請求項1記載の筆記具のキャップ。 The writing instrument cap according to claim 1, wherein a display portion is provided on the inclined outer surface of the blocking wall (21) .
JP10447099A 1999-04-12 1999-04-12 Writing instrument cap Expired - Fee Related JP4132383B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10447099A JP4132383B2 (en) 1999-04-12 1999-04-12 Writing instrument cap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10447099A JP4132383B2 (en) 1999-04-12 1999-04-12 Writing instrument cap

Publications (2)

Publication Number Publication Date
JP2000289383A JP2000289383A (en) 2000-10-17
JP4132383B2 true JP4132383B2 (en) 2008-08-13

Family

ID=14381482

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10447099A Expired - Fee Related JP4132383B2 (en) 1999-04-12 1999-04-12 Writing instrument cap

Country Status (1)

Country Link
JP (1) JP4132383B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010083097A (en) * 2008-10-02 2010-04-15 Mitsubishi Pencil Co Ltd Cap for marking pen

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017115843A1 (en) * 2015-12-28 2017-07-06 三菱鉛筆株式会社 Writing implement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010083097A (en) * 2008-10-02 2010-04-15 Mitsubishi Pencil Co Ltd Cap for marking pen

Also Published As

Publication number Publication date
JP2000289383A (en) 2000-10-17

Similar Documents

Publication Publication Date Title
JP6869127B2 (en) Marking pen
KR920700934A (en) Writing utensils
JP4132383B2 (en) Writing instrument cap
JP2021151793A (en) Marking pen
JP2011079206A (en) Thermochromic writing utensil
KR20050006055A (en) Writing instrument
JP2006123337A (en) Cap for writing instrument
JP5469561B2 (en) Writing instrument clip structure
JP3137996U (en) Writing instrument cap
JP2595123Y2 (en) Writing implement
TWI827627B (en) Note utensils
JP3946340B2 (en) Mating structure of writing instrument cap
JP2516858Y2 (en) Writing instrument cap
JP2018094877A (en) Writing instrument
JPH0616796Y2 (en) Writing instrument
JP4401509B2 (en) Writing instrument
JP3958600B2 (en) Intrusive writing instrument
JP6511348B2 (en) Writing instrument
JPH0639485U (en) Writing instrument cap
JPH0237578Y2 (en)
JP6985008B2 (en) Marking pen
JPH10329490A (en) Double ended type writing instrument
JP2577320Y2 (en) Writing implement
JP4014952B2 (en) Eraser mounting structure
JP4666795B2 (en) Capless writing instrument

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20060227

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20071106

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20071127

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20071130

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20080527

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20080602

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110606

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

LAPS Cancellation because of no payment of annual fees