JP2595123Y2 - Writing implement - Google Patents
Writing implementInfo
- Publication number
- JP2595123Y2 JP2595123Y2 JP1993071398U JP7139893U JP2595123Y2 JP 2595123 Y2 JP2595123 Y2 JP 2595123Y2 JP 1993071398 U JP1993071398 U JP 1993071398U JP 7139893 U JP7139893 U JP 7139893U JP 2595123 Y2 JP2595123 Y2 JP 2595123Y2
- Authority
- JP
- Japan
- Prior art keywords
- refill
- tip
- tube
- base
- barrel
- 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)
Description
【０００１】[0001]
【産業上の利用分野】本考案は、リフィールを装着する
ボールペン等の筆記具に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a writing instrument such as a ballpoint pen to which a refill is attached.
【０００２】[0002]
【従来の技術】軸筒内にリフィールを収納した筆記具
は、そのリフィールが筆記時に振れてカタカタしないよ
うに防止する必要がある。従来、このリフィールの振れ
を防止する手段としては、まず、口金の内径をリフィー
ルのチップの外径と同一か、又は僅かに大きくして、振
れを最小に抑える方法がある。この方法によると、口金
の内径の寸法精度を保つ必要があるので、軸筒が樹脂製
であっても、別部品の金属製の口金を用いる必要性が生
じてコストアップとなっていた。また、別の手段として
は、口金の内径をリフィールのチップ外径より僅かに小
さくして、口金に対してチップを軽い圧入により密着さ
せる方法がある。この方法では、圧入になるため、リフ
ィールを交換可能にするためには金属製の口金は使用で
きない。また、圧入によって口金が割れないように軟質
樹脂製の口金としなければならず、材料が限定されると
いう問題がある。また、別の手段としては、リフィール
の全長を軸筒より僅かに長くして、リフィールを撓ませ
ることによりその復元力を利用してリフィールを軸筒に
押し付けるという方法がある。この方法によると、リフ
ィールのインキ量を目視できるように軸筒を透明にした
場合に、曲がったリフィールの姿が見えて外観上の体裁
が悪いという問題や、リフィールが長時間撓んだままの
状態で置かれると、やがてクリープ現象により復元力が
失われて、振れ防止効果がなくなるという問題がある。2. Description of the Related Art A writing instrument in which a refill is stored in a shaft cylinder needs to prevent the refill from shaking during writing and rattling. Conventionally, as means for preventing the refill from swaying, there is a method in which the inner diameter of the base is made equal to or slightly larger than the outer diameter of the tip of the refill to minimize the sway. According to this method, it is necessary to maintain the dimensional accuracy of the inner diameter of the base. Therefore, even if the shaft cylinder is made of resin, it is necessary to use a metal base as a separate part, resulting in an increase in cost. As another means, there is a method in which the inner diameter of the base is slightly smaller than the outer diameter of the tip of the refill, and the chip is brought into close contact with the base by light press-fitting. In this method, metal fittings cannot be used in order to make the refill replaceable because of press-fitting. In addition, the base must be made of a soft resin so that the base is not broken by press fitting, and there is a problem that the material is limited. Further, as another means, there is a method in which the entire length of the refill is slightly longer than that of the barrel, and the refill is bent to use the restoring force to press the refill against the barrel. According to this method, when the barrel is made transparent so that the ink amount of the refill can be visually observed, the appearance of the bent refill can be seen and the appearance of the refill can be poor, or the refill can remain bent for a long time. When placed in a state, there is a problem that the restoring force is eventually lost due to the creep phenomenon, and the effect of preventing vibration is lost.
【０００３】[0003]
【考案が解決しようとする課題】そこで本考案は、リフ
ィールの振れを防止することができ、しかも、口金を金
属製とすることを要求されたり材料を限定されることが
なく、又、外観の体裁が悪くなるという不利をまねくこ
ともない筆記具の提供を目的とする。SUMMARY OF THE INVENTION Accordingly, the present invention can prevent the refill from swaying, does not require the base to be made of metal, does not limit the material, and has an improved appearance. It is an object of the present invention to provide a writing instrument that does not have the disadvantage of a bad appearance.
【０００４】[0004]
【課題を解決するための手段】上記目的を達成するため
に、本考案の筆記具は、軟質樹脂材よりなるチューブ１
の先端に筆先チップ２を取付けてなるリフィール３を軸
筒４内に収納する筆記具において、軸筒４の先端部の内
面における周方向の複数箇所にリフィール３のチューブ
１の外面に対しその内面を密着させてリフィール３の振
れを防止するリブ５を設けたことを特徴として構成され
るものである。In order to achieve the above object, a writing instrument of the present invention comprises a tube 1 made of a soft resin material.
In the writing instrument for accommodating the refill 3 having the tip 2 attached to the tip of the tube in the barrel 4, the inner surface of the tube 1 of the refill 3 is provided at a plurality of circumferential locations on the inner surface of the tip of the barrel 4. It is characterized in that a rib 5 is provided so as to be in close contact to prevent the deflection of the refill 3.
【０００５】[0005]
【作用】本考案の筆記具では、リフィール３の筆先チッ
プ２を口金によって固定するのではなく、チューブ１を
リブ５によって固定することになる。従って、筆先チッ
プ２の外径と口金又は軸筒４の口金相当部位の内径との
寸法関係にそれ程の精度が要求されずラフでもよいこと
になる。In the writing instrument of the present invention, the tube 1 is fixed by the rib 5 instead of fixing the tip 2 of the refill 3 by the base. Therefore, the dimensional relationship between the outer diameter of the writing tip 2 and the inner diameter of the base or the base equivalent portion of the barrel 4 does not need to be so precise, and may be rough.
【０００６】[0006]
【実施例】以下、本考案の一実施例のボールペンについ
て図面に基づき説明する。まず、符号３がボールペン用
のリフィールであり、このリフィール３は、インキを収
容したポリプロピレン製のチューブ１の先端に、転写用
のボール６を先端に抱持した筆先チップ２を接合して構
成されている。次に、符号４がプラスチック製の軸筒で
あり、別個の金属製の口金を螺着するものではなく、そ
の前端部に口金に相当する部位を一体的に設け、軸方向
においてリフィール３のチューブ１の前端部と対応する
位置の内面の周方向の複数箇所に、チューブ１の外径よ
りもその内接円の直径を僅かに小さく設定したリブ５を
一体的に形成すると共に、それらリブ５の前端に一連に
内接円の直径を更に小さく設定した副リブ７を一体的に
形成している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A ballpoint pen according to an embodiment of the present invention will be described below with reference to the drawings. First, reference numeral 3 denotes a refill for a ball-point pen, and the refill 3 is formed by joining a brush tip 2 holding a transfer ball 6 to the tip of a polypropylene tube 1 containing ink. ing. Next, reference numeral 4 denotes a plastic barrel, which is not screwed with a separate metal base, but is integrally provided with a portion corresponding to the base at the front end thereof, and a tube of the refill 3 in the axial direction. At a plurality of circumferential locations on the inner surface at positions corresponding to the front end of the tube 1, ribs 5 whose inscribed circles are set slightly smaller than the outer diameter of the tube 1 are integrally formed. Are formed integrally at the front end of the sub-rib 7 in which the diameter of the inscribed circle is set smaller.
【０００７】リフィール３は、そのチューブ１を軸筒４
のリブ５の内部に圧入して、チューブ１の前端縁を副リ
ブ７の後端斜面に当接して固定され、筆先チップ２は軸
筒４に対し非接触となる。[0007] The refill 3 is composed of a tube 1
, And the front end of the tube 1 abuts against and is fixed to the rear end slope of the sub rib 7, so that the writing tip 2 is not in contact with the barrel 4.
【０００８】[0008]
【考案の効果】本考案は上記のとおりであり、リフィー
ル３の筆先チップ２を口金で固定して筆記時の振れを防
止するのではなく、リフィール３のチューブ１を軸筒４
に設けたリブ５で固定して筆記時の振れを防止するよう
にしたので、口金の内径の寸法精度を保つために口金を
軸筒とは別の金属製にするような必要がなく、口金に相
当する部位を軸筒４とプラスチックにより一体成形して
コストアップを避けることができ、又、筆先チップを圧
入することもないので割れを防ぐために軟質の材料を用
いることが必要となることもなく材料が限定される不自
由をまねくこともない。また、全周ではなく、リブによ
って部分的に固定するので、リフィールのチューブ外径
寸法が多少バラついても吸収される利点もある。更に、
リフィールのチューブを曲げる必要もないので軸筒４を
透明にしてインキ量を目視できるようにしても外観の見
映えが悪くなることもない。[Effect of the Invention] The present invention is as described above. Instead of fixing the tip 2 of the refill 3 with a base to prevent runout during writing, the tube 1 of the refill 3 is connected to the barrel 4.
Is fixed by the ribs 5 provided on the base to prevent run-out during writing, so that the base does not need to be made of a metal different from the barrel to maintain the dimensional accuracy of the inner diameter of the base. In addition, it is possible to avoid the cost increase by integrally molding the portion corresponding to the shaft cylinder 4 and the plastic, and it is also necessary to use a soft material to prevent cracking because the tip of the writing tip is not pressed. There is no inconvenience of limited materials. In addition, since it is partially fixed not by the entire circumference but by the ribs, there is an advantage that even if the outer diameter of the tube of the refill is slightly varied, it is absorbed. Furthermore,
Since it is not necessary to bend the tube of the refill, the appearance of the outer appearance does not deteriorate even if the shaft cylinder 4 is made transparent so that the amount of ink can be visually checked.
【図１】要部縦断面図である。FIG. 1 is a longitudinal sectional view of a main part.
【図２】図１のＡ−Ａ線断面図である。FIG. 2 is a sectional view taken along line AA of FIG.
１ チューブ ２ 筆先チップ ３ リフィール ４ 軸筒 ５ リブ ６ ボール ７ 副リブ 1 Tube 2 Tip 3 Refill 4 Shaft 5 Rib 6 Ball 7 Secondary Rib
Claims (1)
筆先チップ２を取付けてなるリフィール３を軸筒４内に
収納する筆記具において、軸筒４の先端部の内面におけ
る周方向の複数箇所にリフィール３のチューブ１の外面
に対しその内面を密着させてリフィール３の振れを防止
するリブ５を設けたことを特徴とする筆記具。1. A writing instrument for accommodating a refill 3 in which a writing tip 2 is attached to a tip of a tube 1 made of a soft resin material in a shaft cylinder 4 at a plurality of circumferential locations on the inner surface of the tip of the shaft cylinder 4. A writing instrument, comprising a rib 5 for tightly contacting the inner surface of the refill 3 with the outer surface of the tube 1 to prevent the refill 3 from swaying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993071398U JP2595123Y2 (en) | 1993-12-07 | 1993-12-07 | Writing implement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993071398U JP2595123Y2 (en) | 1993-12-07 | 1993-12-07 | Writing implement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0733679U JPH0733679U (en) | 1995-06-20 |
| JP2595123Y2 true JP2595123Y2 (en) | 1999-05-24 |
Family
ID=13459375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1993071398U Expired - Fee Related JP2595123Y2 (en) | 1993-12-07 | 1993-12-07 | Writing implement |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2595123Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102458298A (en) * | 2009-06-04 | 2012-05-16 | 太阳星光齿磨公司 | Oral care instrument |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014168195A1 (en) * | 2013-04-10 | 2014-10-16 | 三菱鉛筆株式会社 | Writing implement |
| JP6159559B2 (en) * | 2013-04-10 | 2017-07-05 | 三菱鉛筆株式会社 | Writing instrument |
| JP6242067B2 (en) * | 2013-04-10 | 2017-12-06 | 三菱鉛筆株式会社 | Writing instrument |
-
1993
- 1993-12-07 JP JP1993071398U patent/JP2595123Y2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102458298A (en) * | 2009-06-04 | 2012-05-16 | 太阳星光齿磨公司 | Oral care instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0733679U (en) | 1995-06-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19990112 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |