JPS61122876U

JPS61122876U -

Info

Publication number: JPS61122876U
Application number: JP664985U
Authority: JP
Priority date: 1985-01-21
Filing date: 1985-01-21
Publication date: 1986-08-02

Description

[Brief explanation of the drawing]

第１図及び第２図は本考案の実施例を示すもの
で、第１図は中継芯非装着状態のボールペンチツ
プの先端部縦断面図、第２図は中継芯装着状態の
ボールペンチツプの先端部縦断面図である。第３
図及び第４図は従来例を示すもので第３図は中継
芯のテーパ角をチツプ内面のテーパ角より鈍角に
したものの縦断面図、第４図は中継芯に段差を設
けたものの縦断面図である。１……ボールペンチツプ、２……中継芯、３…
…中継芯の先端部テーパ面、４……ボールペンチ
ツプの内面テーパ部、４ａ……前方の内面テーパ
部、４ｂ……後方の内面テーパ部、５……段差、
６……ボール、７ａ，７ｂ……中継芯、８ａ，８
ｂ……先端テーパ部、９……ボールペンチツプ、
１０……内孔部のテーパ面、１１……段差。 Figures 1 and 2 show an embodiment of the present invention. Figure 1 is a longitudinal sectional view of the tip of a ballpoint pen tip without a relay core attached, and Figure 2 is a longitudinal sectional view of the tip of a ballpoint pen tip with a relay core attached. FIG. Third
Figures 4 and 4 show conventional examples. Figure 3 is a vertical cross-sectional view of a relay core with a taper angle that is more obtuse than the taper angle of the inner surface of the chip, and Figure 4 is a vertical cross-section of a relay core with a step. It is a diagram. 1...Ballpoint pen tip, 2...Relay lead, 3...
...Tapered surface of the tip end of the relay core, 4...Inner taper part of the ballpoint pen tip, 4a...Front inner taper part, 4b...Rear inner taper part, 5...Step,
6...Ball, 7a, 7b...Relay core, 8a, 8
b...Tapered tip, 9...Ballpoint pen tip,
10...Tapered surface of inner hole, 11...Step.

Claims

[Scope of utility model registration request]

A ballpoint pen nib characterized in that a step is provided in an inner surface tapered part of the inner hole of the ballpoint pen tip where the tip of a relay core comes into contact.