JPS59153178U

JPS59153178U - Tip of water-based ballpoint pen

Info

Publication number: JPS59153178U
Application number: JP4523883U
Authority: JP
Inventors: 稲葉　孝男; 達夫青木
Original assignee: パイロツトインキ株式会社
Priority date: 1983-03-29
Filing date: 1983-03-29
Publication date: 1984-10-13

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案実施例の要部縦断面図、第２図及び第３
図は前記のＡ−Ａ線、Ｂ−Ｂ線の各横断面図である。１・・・水性ボールペンの先端部、２・・・チップ、２
−１・・・ボール、２−２・・・チップ筒、２−３・・
・多孔質インキ誘導芯、３・・・ペン芯部材、３−１・
・・横溝部、３−２・・・筒状延長部、３−３・・・内
孔、３−４・・・中心孔、４・・・プラスチック芯。Figure 1 is a vertical sectional view of the main part of the embodiment of the present invention, Figures 2 and 3 are
The figures are cross-sectional views taken along the line A-A and line B-B. 1... Tip of water-based ballpoint pen, 2... Tip, 2
-1... Ball, 2-2... Chip tube, 2-3...
・Porous ink guide core, 3...Pen core member, 3-1・
...Horizontal groove part, 3-2... Cylindrical extension part, 3-3... Inner hole, 3-4... Center hole, 4... Plastic core.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

水性ボールペンのチップをペン芯部材に接続シてインキ
タンクからインキを導出させるタイプの水性ボールペン
において、前記チップ２は先端にボール２−１を保持し
たチップ筒２−２の後部に多孔質インキ誘導芯２−３が
挿着されてなり、ペン芯部材３は横溝部３−１と該横溝
部の一側に延設される筒状延長部３−２を備え、横溝部
には前記延長部の内孔３−３より小′径の中心孔３−４
が前記内孔と連通して貫設されており、前記筒状延長部
の内孔３−３には前記チップ筒の後部を挿着させると共
に中心孔３−４にはインキを導出させるプラスチック芯
体４が挿入されて前記多孔質インキ誘導芯２−３の後端
と当接させてなる水性ボールペンの先端部。In a water-based ballpoint pen of the type in which the tip of the water-based ballpoint pen is connected to a pen core member to draw out ink from an ink tank, the tip 2 is a porous ink guide at the rear of a tip cylinder 2-2 that holds a ball 2-1 at the tip. The pen core member 3 has a lateral groove 3-1 and a cylindrical extension 3-2 extending to one side of the lateral groove, and the lateral groove has the extension. The center hole 3-4 has a smaller diameter than the inner hole 3-3.
is provided through the inner hole in communication with the inner hole, the rear part of the tip tube is inserted into the inner hole 3-3 of the cylindrical extension part, and a plastic core from which ink is drawn out is provided in the center hole 3-4. A tip portion of a water-based ballpoint pen into which the body 4 is inserted and brought into contact with the rear end of the porous ink guide core 2-3.