JPS6122678U

JPS6122678U - ballpoint pen

Info

Publication number: JPS6122678U
Application number: JP10664884U
Authority: JP
Inventors: 正男海田
Original assignee: Individual
Current assignee: Individual
Priority date: 1984-07-13
Filing date: 1984-07-13
Publication date: 1986-02-10

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

[Brief explanation of drawings]

第１図は本考案の実施例を示し胴中間部を省略した拡大
縦断面図、第２図乃至第４図は夫々第１図中ｎ−ｎ線、
ｍ−ｍ線、ＩＶ−ＩＶ線断面図、第５図は作用を示す第
１図と同様の断面図、第６図は嵌合体の変形例を示す要
部の斜視図、第７図は第二の実施例を示す要部の縦断面
図、第８図は従来例を示す第１図と同様の断面図である
。符号説明、１・・・・・・芯部、１ａ・・・・・・イン
ク充填孔、２・・・・・・胴、３・・・・・・首部キャ
ップ、５・・曲胴先端の小径部、８・・・・・・チップ
、６・・・・・・尾部キャップ、１０・・・・・・胴後
端の小径部、１１・・・・・・雄ねじ、１３・・・・・
・ストッパー、１３ａ・・・・・・段部、１３ｂ・・・
・・・遊辺ζ １４・・・・・・嵌合突起、１５・・・
・・・抜出し防止用ストッパー、１５ａ・・・・・・後
端辺、ａ・・・・・・チップの突出寸法、ｂ・・・・・
・雄ねじの軸線方向全長、Ｃ・・・・・・ストッパー後
端辺と胴先端小径部先端との間隔、Ｌ・・・・・・胴先
端小径部の肉厚、１・・・・・・ストツパーの膨出寸法
。FIG. 1 is an enlarged vertical cross-sectional view showing an embodiment of the present invention, with the middle part of the trunk omitted, and FIGS. 2 to 4 are taken along line nn in FIG.
5 is a sectional view similar to FIG. 1 showing the function, FIG. 6 is a perspective view of the main part showing a modification of the fitted body, and FIG. FIG. 8 is a vertical sectional view of the main part showing the second embodiment, and is a sectional view similar to FIG. 1 showing the conventional example. Description of symbols: 1... core, 1a... ink filling hole, 2... barrel, 3... neck cap, 5... tip of curved barrel Small diameter part, 8...Tip, 6...Tail cap, 10...Small diameter part at rear end of body, 11...Male thread, 13...・
・Stopper, 13a...Stepped portion, 13b...
... Free side ζ 14 ... Fitting protrusion, 15 ...
... Stopper for preventing extraction, 15a ... Rear end side, a ... Chip protrusion dimension, b ......
・Total length in the axial direction of the male thread, C... Distance between the rear end of the stopper and the tip of the small diameter section at the tip of the barrel, L... Thickness of the small diameter section at the tip of the barrel, 1... Stopper bulge dimension.

Claims

[Scope of utility model registration request]

A fitting body 14 with a predetermined shaft length is provided at the inner bottom of the tail cap 9, which is screwed onto a double-thread male thread 11 formed on the outer periphery of the small-diameter portion 10 at the rear of the body 2. The rear end of the stopper 15 is removably inserted into the fitting body 14, and a stopper 15 is attached to the tip of the core 1 so that the protruding top portion is located within the wall thickness L width of the small diameter portion 5 at the tip of the body 2.
is provided, and the protruding dimension a of the core tip 8 from the tip of the neck cap 3 corresponds to the double thread male thread 11-.
The total axial length b of the stopper 15 and the rear end side 15a of the stopper 15
The distance between C and the tip of the small diameter part 5 at the tip of the body is equal to or slightly 1
A ballpoint pen with short dimensions.