JPS5821474U

JPS5821474U - writing utensil pen core

Info

Publication number: JPS5821474U
Application number: JP11510981U
Authority: JP
Inventors: 東　大三郎; 正幸川崎
Original assignee: ぺんてる株式会社
Priority date: 1981-07-31
Filing date: 1981-07-31
Publication date: 1983-02-09
Also published as: JPH0110236Y2

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す要部縦断面図、第２図
乃至第６図はそれぞれ第１図のＩ−Ｉ線乃至ｖ−ｖ線横
断面図である。Ａ・・・外部材、２・・・インキ溜溝、３・・・インキ
溝、５・・・中心孔、Ｂ・・・内部材、１０・・・係止
突起、１１・・・大径部、１２−・・小径部、１３ａ、
　　１３ｂ、　　１３Ｃ。１３ｄ・・・インキ通路、１４・・・突起、１５ａ・・
・インキ路の小幅部、１５ｂ・・・インキ路の大幅部。FIG. 1 is a longitudinal cross-sectional view of a main part showing an embodiment of the present invention, and FIGS. 2 to 6 are cross-sectional views taken along lines I-I to V-V in FIG. 1, respectively. A... External material, 2... Ink reservoir groove, 3... Ink groove, 5... Center hole, B... Internal material, 10... Locking protrusion, 11... Large diameter Part, 12-... Small diameter part, 13a,
13b, 13C. 13d... Ink passage, 14... Protrusion, 15a...
- Narrow part of the ink path, 15b... wide part of the ink path.

Claims

[Scope of utility model registration request]

An external member A having a comb-shaped ink reservoir groove in a longitudinal section, a slit-like ink groove communicating with the ink reservoir groove, and a center hole communicating with at least a part of the ink groove; consisting of an internal member B inserted into the central hole of A;
The inner member B has an ink passage, and an ink passage is formed between its outer wall surface and the inner wall face of the center hole of the outer member A, and the ink passage is connected to the narrow portion and the narrow width portion (
a wide part, and at least a part of the wide part is located in a communicating part with the center hole of the ink groove of the external material A,
Further, the inner wall surface of the center hole of the outer member A and the outer wall surface of the inner member B have contact portions at at least two or more different positions in the axial direction, and at least one of the contact portions A pen core of a writing instrument, wherein one location is located in the wide part of the ink path.