JP2516879Y2 - Writing instrument cap fitting structure - Google Patents
Writing instrument cap fitting structureInfo
- Publication number
- JP2516879Y2 JP2516879Y2 JP1990114894U JP11489490U JP2516879Y2 JP 2516879 Y2 JP2516879 Y2 JP 2516879Y2 JP 1990114894 U JP1990114894 U JP 1990114894U JP 11489490 U JP11489490 U JP 11489490U JP 2516879 Y2 JP2516879 Y2 JP 2516879Y2
- Authority
- JP
- Japan
- Prior art keywords
- fitting
- cap
- projection
- steady rest
- annular projection
- 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
Links
Landscapes
- Pens And Brushes (AREA)
- Closures For Containers (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、筆記具キャップの嵌合構造に関する。更
に、詳細には、万年筆、サインペン、水性ボールペンな
どの筆記具に適用され、筆記先端部を気密状態に保持
し、乾燥を防止するキャップ嵌合構造に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a fitting structure for a writing instrument cap. More specifically, the present invention relates to a cap fitting structure that is applied to a writing instrument such as a fountain pen, felt-tip pen, and water-based ballpoint pen, and keeps a writing tip end in an airtight state to prevent drying.
従来より、筆記具のキャップ嵌合構造として、キャッ
プ内壁に、筆記先端部の気密を保持する環状突起と、軸
筒と摺接嵌合して軸筒のぐらつきを防止する振れ止め突
起（通常、複数の支持突起からなるため、軸筒と気密嵌
合を成さない）とが、前後に間隔をおいて設けられ、一
方、軸筒にはキャップの前記環状突起と対応した乗り越
え嵌合部と、前記振れ止め突起と対応した摺接嵌合部が
形成され、前記２箇所の嵌合部によって、筆記先端部の
気密及びキャップ装着の安定が確保された構造のものが
広く知られている。BACKGROUND ART Conventionally, as a cap fitting structure of a writing instrument, an annular projection that maintains airtightness of a writing tip portion on an inner wall of a cap, and a steady rest (usually a plurality of steady projections that slidably fit with a shaft cylinder to prevent wobbling of the shaft cylinder). Of the support projections of (1), which does not form an airtight fit with the shaft cylinder) are provided at a front and back with a space therebetween, while the shaft cylinder has a ride-over fitting portion corresponding to the annular projection of the cap, A structure is widely known in which a sliding contact fitting portion corresponding to the steady rest projection is formed, and the two fitting portions ensure the airtightness of the writing tip and the stability of cap mounting.
前記従来のキャップ嵌合構造（第７図乃至第９図参
照）は、気密保持用の乗り越え嵌合部と、ぐらつき防止
用の摺接嵌合部（気密保持機能を有さない）の２箇所の
嵌合部を有しているため、キャップ装着過程で、少なく
とも気密嵌合部より先に摺接嵌合部において、嵌合作用
が始まる場合、完全な気密嵌合が行われる前に、使用者
は摺接嵌合の嵌合初期の抵抗感によって、キャップの装
着が終了したと錯覚しがちであり、キャップ装着行為を
中止してしまうことがしばしばあった（第７図）。その
ため、筆記具はキャップ装着中途のまま（いわゆる半キ
ャップ状態）に放置され、筆記先端部のインキを蒸発さ
せてしまい、ついには筆記不能にした。The conventional cap fitting structure (see FIG. 7 to FIG. 9) has two locations, namely, a crossover fitting portion for maintaining airtightness and a sliding contact fitting portion (having no airtightness retaining function) for preventing wobble. Since it has a fitting part of, when the fitting action starts at least in the sliding contact fitting part before the airtight fitting part in the cap mounting process, it is used before complete airtight fitting is performed. A person tends to have an illusion that the wearing of the cap is completed due to a resistance feeling at the initial stage of the sliding contact fitting, and often stops the action of wearing the cap (FIG. 7). Therefore, the writing instrument was left as it was while the cap was being attached (so-called semi-capped state), the ink at the tip of the writing was evaporated, and the writing was finally disabled.
又、乗り越え嵌合する前の摺接嵌合の途中で、使用者
はキャップ装着を中断してしまうため、乗り越え嵌合終
了時に発生する音（いわゆるパッチン音）を聞くことが
できず、気持ちのよい嵌合感を味わえなかった。In addition, since the user interrupts the cap attachment during the sliding contact fitting before the overpass fitting, the user cannot hear the sound (so-called patchy sound) generated at the end of the overpass fitting, which is a feeling. I couldn't feel a good fit.
本考案は、前記従来の不具合を解消し、半キャップ状
態を起こさず、常に確実な気密の保持を可能とするキャ
ップ嵌合構造を提供しようとするものである。SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems and provides a cap fitting structure that does not cause a half-cap state and can always maintain reliable airtightness.
本考案筆記具のキャップ嵌合構造は、内壁に気密嵌合
用の環状突起11と複数の支持突起よりなる振れ止め突起
12が前後に間隔をおいて配設されたキャップ１を、前記
環状突起11が乗り越えて気密嵌合される環状の膨大部21
と、前記振れ止め突起12が摺接する係合部22とを設けた
軸筒２に装着させる筆記具のキャップ嵌合構造であっ
て、前記環状突起11が膨大部21に当接してから前記乗り
越え嵌合終了までの環状突起11と膨大部21の接触長さL1
と、前記振れ止め突起12が係合部22に当接してから前記
嵌合が終了するまでの摺接長さL2の関係が、次式 L1≧L2 を満足させるよう構成されてなることを要件とする。The cap fitting structure of the writing instrument of the present invention comprises an anti-sway projection having an annular projection 11 for airtight fitting and a plurality of support projections on the inner wall.
An annular enlarging portion 21 in which the annular projection 11 rides over the cap 1 in which the front and rear 12 are spaced apart from each other and is airtightly fitted.
And a cap fitting structure for a writing instrument to be mounted on the barrel 2 provided with an engaging portion 22 with which the steady rest 12 comes into sliding contact. Contact length L 1 between annular protrusion 11 and enlarged portion 21 until the end of joining
And the relationship of the sliding contact length L 2 from the contact of the steady rest 12 with the engaging portion 22 to the end of the fitting is configured to satisfy the following expression L 1 ≧ L 2. It is a requirement.
環状突起11及び膨大部21は、気密保持を目的とした乗
り越え嵌合部を形成する。環状突起11の最小内径は膨大
部21の最大外径よりわずかに小さく設定され、更に、嵌
着後においても膨大部21に対して締め付け力を有するよ
うに設定される。The annular projection 11 and the enlarged portion 21 form a crossover fitting portion for the purpose of maintaining airtightness. The minimum inner diameter of the annular protrusion 11 is set to be slightly smaller than the maximum outer diameter of the enlarged portion 21, and further, it is set so as to have a tightening force against the enlarged portion 21 even after the fitting.
又、前記環状突起11及び膨大部21はスムーズな嵌合を
行うため、ゆるやかなＲ形状面あるいはテーパ面に形成
され、特に環状突起11、膨大部21の少なくともどちらか
一方のＲ形状面あるいはテーパ面を大きくゆるやかにす
ることによって、接触長さL1を比較的長く設定すること
ができる。Further, the annular projection 11 and the enlarged portion 21 are formed into a gentle R-shaped surface or a tapered surface for smooth fitting, and in particular, at least one of the annular protrusion 11 and the enlarged portion 21 has an R-shaped surface or a tapered surface. The contact length L 1 can be set relatively long by making the surface large and gentle.
振れ止め突起12は、通常環状の突起を分割した４点あ
るいは複数の支持突起によって形成され、具体的には、
半球体、又は突起頂部を平面に形成した面突条などが挙
げられ、その内接円の径は係合部22の外径よりわずかに
小さく設定される。又、係合部22は摺接面をストレート
あるいは後方へわずかの拡径テーパによって形成され
る。The steady rest projection 12 is usually formed by four points or a plurality of support projections obtained by dividing an annular projection, and specifically,
Examples thereof include a hemisphere or a surface ridge having a protrusion top portion formed into a flat surface. The diameter of the inscribed circle is set to be slightly smaller than the outer diameter of the engaging portion 22. Further, the engaging portion 22 has a sliding contact surface formed straight or with a taper that slightly expands rearward.
又、乗り越え嵌合部と摺接嵌合部の前後の位置を逆に
設定してもよい。Further, the front and rear positions of the ride-over fitting portion and the sliding contact fitting portion may be set reversely.
尚、接触長さL1及び摺接長さL2は、環状突起11及び振
れ止め突起12が、それぞれ膨大部21及び係合部22に当接
し始めてから、乗り越え嵌合が終了し、キャップ嵌合が
完了するまでの間、それぞれの突起の移動距離をいう。Note that the contact length L 1 and the sliding contact length L 2 are determined by the cap fitting when the annular projection 11 and the steady rest projection 12 start contacting the enlarged portion 21 and the engaging portion 22, respectively, and then the overpass fitting is completed. It means the movement distance of each protrusion until the matching is completed.
又、キャップ１内には、軸線方向の複数のリブ13が設
けられてもよく、ストッパーとして軸筒２前面に当接
し、軸筒２の前方移動を停止させることも可能である。Further, a plurality of ribs 13 in the axial direction may be provided in the cap 1, and it is possible to stop the forward movement of the shaft cylinder 2 by contacting the front surface of the shaft cylinder 2 as a stopper.
キャップ１及び軸筒２の材質は、嵌合部がわずかの弾
性変形を有するようポリエチレン、ポリプロピレン、ポ
リ塩化ビニル、ポリエチレンテレフタレートなどのプラ
スチックが適宜選択される。As the material of the cap 1 and the barrel 2, plastics such as polyethylene, polypropylene, polyvinyl chloride, and polyethylene terephthalate are appropriately selected so that the fitting portion has a slight elastic deformation.
軸筒２にキャップ１を装着する過程において、先ず、
キャップ１内壁の環状突起11と軸筒の膨大部21が当接し
（第１図参照）、更にキャップ押し込み力を上げて前記
環状突起11に前記膨大部21を乗り越えさせ、環状突起11
前面と膨大部21後面が圧接状態となるに至り、嵌合が完
了する（第２図参照）。In the process of mounting the cap 1 on the barrel 2, first,
The annular projection 11 on the inner wall of the cap 1 and the enlarged portion 21 of the shaft cylinder come into contact with each other (see FIG. 1), and the cap pushing force is further increased to allow the annular protrusion 11 to pass over the enlarged portion 21.
The front surface and the rear surface of the enlarged portion 21 come into a pressure contact state, and the fitting is completed (see FIG. 2).
一方、振れ止め突起12と係合部22は前記乗り越え嵌合
の当接開始から嵌合途中で当接が開始され（第３図参
照）、少なくとも環状突起11と膨大部21が当接する前
に、振れ止め突起12と係合部22が摺接することはない。On the other hand, the steady rest projection 12 and the engaging portion 22 start abutting in the middle of the fitting from the start of the abutment fitting (see FIG. 3), and at least before the annular projection 11 and the enlarged portion 21 abut. The steady rest projection 12 and the engaging portion 22 do not come into sliding contact with each other.
本考案実施例を図面について説明する。（第１図乃至
第６図参照） （第１実施例） 第１図乃至第３図は、第１実施例において、キャップ
が軸筒に装着される過程を示す。第１図は環状突起11が
膨大部21に当接を開始した状態、第２図はキャップ１と
軸筒２が完全に嵌合を終了させた状態、第３図は振れ止
め突起12が係合部22に当接を開始した状態をあらわす。Embodiments of the present invention will be described with reference to the drawings. (See FIGS. 1 to 6) (First Embodiment) FIGS. 1 to 3 show a process of mounting the cap on the barrel in the first embodiment. FIG. 1 shows a state in which the annular projection 11 has started contact with the enlarged portion 21, FIG. 2 shows a state in which the cap 1 and the shaft tube 2 are completely fitted together, and FIG. The state where the contact with the joint 22 is started is shown.
２箇所の嵌合部は、軸筒２の前部の気密用乗り越え嵌
合部、その後部にがたつき防止用摺接嵌合部を配設して
なる。The two fitting portions are provided with an airtight crossover fitting portion in the front portion of the shaft cylinder 2 and a rattle preventing sliding contact fitting portion in the rear portion thereof.
キャップ１内は、前方にリブ13、中央部に環状突起1
1、後方に振れ止め突起12が間隔をおいて設置されてい
る。前記振れ止め突起12は４個の支持突起によりなり
（第４図参照）、軸筒係合部22と摺接する。前記リブ13
は、軸線方向に６本延設され、該後端部は軸筒２前端と
当接する。Inside the cap 1, there are ribs 13 on the front and an annular protrusion 1 on the center.
1. The steady rest projections 12 are installed on the rear side with a space. The steady rest projection 12 is composed of four support projections (see FIG. 4) and is in sliding contact with the shaft cylinder engaging portion 22. The rib 13
Are extended in the axial direction, and the rear end portion thereof contacts the front end of the barrel 2.
軸筒２の前端には、ゆるやかなＲを有する膨大部21が
環状に形成される。また、前記膨大部21の後方には、段
形状の係合部22が形成されている。An enlarged portion 21 having a gentle R is formed in an annular shape at the front end of the barrel 2. Further, a stepped engagement portion 22 is formed behind the enlarged portion 21.
軸筒２にキャップ１を装着する場合、環状突起11と膨
大部21との接触長さL1は両者のゆるやかなＲによって、
比較的大きく、振れ止め突起12と係合部22との間の摺接
長さL2は、係合部22の段形状によって小さく設定され
る。When the cap 1 is attached to the shaft cylinder 2, the contact length L 1 between the annular protrusion 11 and the enlarged portion 21 is determined by the gentle R of the two.
It is relatively large, and the sliding contact length L 2 between the steady rest 12 and the engaging portion 22 is set small by the step shape of the engaging portion 22.
（第２実施例） 軸筒２の前部にがたつき防止用摺接嵌合部、その後部
に気密用乗り越え嵌合部を配設してなる。（第５図、第
６図参照） キャップ１内は、前方にリブ13、中央部に４点支持の
振れ止め突起12、後部に環状突起11が設けられてなる。
軸筒２は、前端に前記振れ止め突起12が摺接する係合部
22、その後方には前記環状突起11と嵌合する膨大部21が
設けられてなる。Second Embodiment A rattling-preventing sliding contact fitting portion is provided at the front portion of the shaft cylinder 2, and an airtight ride-over fitting portion is provided at the rear portion thereof. (See FIGS. 5 and 6) Inside the cap 1, a rib 13 is provided at the front, a steady rest projection 12 supporting four points at the center, and an annular projection 11 at the rear.
The shaft cylinder 2 has an engaging portion with which the steady rest projection 12 is in sliding contact with the front end.
22, and an enlarged portion 21 fitted to the annular projection 11 is provided behind it.
前記環状突起11と膨大部21との間の接触長さL1は、突
起断面のＲ形状や、大きさなどによって適宜設定され
る。The contact length L 1 between the annular protrusion 11 and the enlarged portion 21 is appropriately set depending on the R shape of the protrusion cross section, the size, and the like.
前記振れ止め突起12と係合部22との間の摺接長さL
2は、キャップ内の振れ止め突起12と環状突起11との距
離、あるいは振れ止め突起12とストッパー用リブ13当接
部との距離によって容易に調節でき、L1より小さく設定
される。Sliding contact length L between the steady rest protrusion 12 and the engaging portion 22
2 can be easily adjusted by the distance between the steady rest projection 12 and the annular projection 11 in the cap, or the distance between the steady rest projection 12 and the contact portion of the stopper rib 13 and is set to be smaller than L 1 .
本考案筆記具のキャップ嵌合構造は、環状突起と膨大
部との間の接触長さL1が、振れ止め突起と係合部との間
の摺接長さL2より大に設定されたことにより、振れ止め
突起と係合部との摺接初期の抵抗感により、キャップ装
着が終了したと錯覚して、キャップ装着を中断させるこ
とがなくなり、筆記先端部を半キャップ状態に放置し筆
記不能にさせることがない上、パチンという嵌着音を伴
うスムーズな嵌合感を味わうことができ、キャップの気
密機能のみならず使いごこちも十分満足させることがで
きる。In the cap fitting structure of the writing instrument of the present invention, the contact length L 1 between the annular protrusion and the enlarged portion is set to be larger than the sliding contact length L 2 between the steady protrusion and the engaging portion. By this, the resistance feeling at the initial sliding contact between the steady rest and the engaging part does not cause the illusion that the cap mounting is completed and the cap mounting is not interrupted, and the writing tip is left in a half cap state and writing is not possible. In addition, it is possible to enjoy a smooth fitting feeling with a snapping sound, and it is possible to satisfy not only the airtight function of the cap but also the usability.
第１図乃至第３図は本考案の第１実施例のキャップ装着
段階を示す縦断面図、第４図は第３図のＡ−Ａ線断面
図、第５図は第２実施例を示す縦断面図、第６図は第５
図のＢ−Ｂ線断面図、第７図乃至第９図は従来例のキャ
ップ装着段階を示す縦断面図である。 １……キャップ、２……軸筒 11……環状突起、21……膨大部 12……振れ止め突起、22……係合部 13……リブ L1……接触長さ L2……摺接長さ1 to 3 are longitudinal sectional views showing a cap mounting step of the first embodiment of the present invention, FIG. 4 is a sectional view taken along the line AA of FIG. 3, and FIG. 5 is a second embodiment. Longitudinal sectional view, FIG.
FIG. 7 is a vertical cross-sectional view showing a cap mounting step of a conventional example, taken along the line BB of FIG. 1 ...... caps, 2 ...... barrel 11 ...... annular projection, 21 ...... enlarged portion 12 ...... bracing projection, 22 ...... engagement portion 13 ...... ribs L 1 ...... contact length L 2 ...... sliding Contact length
Claims (1)
の支持突起よりなる振れ止め突起（12）が前後に間隔を
おいて配設されたキャップ（１）を、前記環状突起（1
1）が乗り越えて気密嵌合される環状の膨大部（21）
と、前記振れ止め突起（12）が摺接する係合部（22）と
を設けた軸筒（２）に装着させる筆記具のキャップ嵌合
構造において、前記環状突起（11）が膨大部（21）に当
接してから前記乗り越え嵌合終了までの環状突起（11）
と膨大部（21）の接触長さL1と、前記振れ止め突起（1
2）が係合部（22）に当接してから前記嵌合が終了する
までの摺接長さL2の関係が、次式 L1≧L2 を満足させるよう構成されてなる筆記具のキャップ嵌合
構造。1. A cap (1) having an annular projection (11) for airtight fitting and a steady rest projection (12) comprising a plurality of support projections, which are arranged on the inner wall at anteroposterior intervals, and the annular projection (12). 1
Ring-shaped enlarging part (21) over which 1) gets over and is airtightly fitted
And a cap fitting structure of a writing instrument to be mounted on a shaft tube (2) provided with an engaging portion (22) with which the steady rest projection (12) is slidably contacted, the annular projection (11) has an enlarged portion (21). Annular projection (11) from abutting to the end to the end of the overcoming fitting
And the contact length L 1 between the enlarged portion (21) and the steady rest (1
2) The cap of the writing instrument configured such that the relationship of the sliding contact length L 2 from the contact with the engaging portion (22) to the end of the fitting satisfies the following expression L 1 ≧ L 2. Mating structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990114894U JP2516879Y2 (en) | 1990-10-31 | 1990-10-31 | Writing instrument cap fitting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990114894U JP2516879Y2 (en) | 1990-10-31 | 1990-10-31 | Writing instrument cap fitting structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0471288U JPH0471288U (en) | 1992-06-24 |
| JP2516879Y2 true JP2516879Y2 (en) | 1996-11-13 |
Family
ID=31862617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990114894U Expired - Fee Related JP2516879Y2 (en) | 1990-10-31 | 1990-10-31 | Writing instrument cap fitting structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2516879Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007296657A (en) * | 2006-04-27 | 2007-11-15 | Pilot Ink Co Ltd | Writing utensil |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5593965B2 (en) * | 2010-08-27 | 2014-09-24 | ぺんてる株式会社 | Pressure contact structure of cylindrical member |
| JP6482303B2 (en) * | 2015-02-05 | 2019-03-13 | テルモ株式会社 | Body moisture meter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0519740Y2 (en) * | 1986-07-21 | 1993-05-24 |
-
1990
- 1990-10-31 JP JP1990114894U patent/JP2516879Y2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007296657A (en) * | 2006-04-27 | 2007-11-15 | Pilot Ink Co Ltd | Writing utensil |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0471288U (en) | 1992-06-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |