JPS60157285U

JPS60157285U - double writing instrument

Info

Publication number: JPS60157285U
Application number: JP4642684U
Authority: JP
Inventors: 清一小林
Original assignee: 三菱鉛筆株式会社
Priority date: 1984-03-30
Filing date: 1984-03-30
Publication date: 1985-10-19
Also published as: JPH0335594Y2

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 the drawing]

第１図は本考案に係る複式筆記具の縦断面図で、第２図
は同筆記具の構成部分である選択リング部分の正面図、
第３図は同選択リング部分の右側面図、第４図は同選択
リング部分の縦断側面図、第５図は同選択リング部分の
展開説明図、章６図は同選択リング部分の他の実施例の
展開説明図、第７図は同選択リング部分の更に他の実施
例を示す展開説明図で、第８図は同選択リング部分の他
の動作状態を示す展開説明図、第９図乃至第１３図は夫
々選択リング部分の異なる実施例を示す展開説明図であ
る。２・・・先軸、４・・・ガイド筒、５．６．　７・・・
摺動溝、９．２Ｇ、２１・・・摺動コマ、１３・・・円
筒カム、１５，２４，２５・・・筆記体、１７・・・先
端孔、２６・・・カム斜面、２７・・・ボス部、２Ｂ・
・・選択リング、３２・・・縦溝、３３・・・周溝、３
２ａ、３３ａ。 ′　３３ｂ・・・ストッパ、３４・・・突起部。Fig. 1 is a longitudinal cross-sectional view of a double-action writing instrument according to the present invention, and Fig. 2 is a front view of the selection ring portion, which is a component of the writing instrument.
Figure 3 is a right side view of the selection ring part, Figure 4 is a longitudinal side view of the selection ring part, Figure 5 is an explanatory diagram of the development of the selection ring part, and Figure 6 is the other part of the selection ring part. FIG. 7 is an expanded explanatory view showing still another embodiment of the same selection ring portion, FIG. 8 is an expanded explanatory view showing another operating state of the same selection ring portion, and FIG. 9 is an expanded explanatory view of the embodiment. FIGS. 13 to 13 are exploded explanatory diagrams showing different embodiments of the selection ring portion. 2... Tip shaft, 4... Guide tube, 5.6. 7...
Sliding groove, 9.2G, 21... Sliding piece, 13... Cylindrical cam, 15, 24, 25... Cursive writing, 17... Tip hole, 26... Cam slope, 27...・Boss part, 2B・
... Selection ring, 32 ... Vertical groove, 33 ... Circumferential groove, 3
2a, 33a. '33b...Stopper, 34...Protrusion.

Claims

[Scope of utility model registration request]

(1) A cursive piece was fitted into each of the three sliding grooves formed in the guide tube through a sliding piece fixed to the rear end so that it could move back and forth, and a cam slope was formed on the front surface. The cylindrical cam is rotatably fitted onto the outer periphery of the guide tube, and by rotating the cylindrical cam, the sliding piece slides on the cam slope to integrate the three writing fonts with the guide tube. In a double writing instrument configured to protrude from and be stored in the tip hole of the tip shaft provided in the guide tube, a protrusion protruding from the inner surface of the cylindrical cam is rotatably fitted into the circumferential groove of the selection ring provided at the rear of the guide tube. and the selection ring is integrally fixed to the guide cylinder in the rotational direction, but configured to be movable in the axial direction,
A double writing instrument characterized in that a stopper is formed in the circumferential groove and can freely come into contact with the protrusion.

(2) The dual-action writing instrument according to claim 1, characterized in that the selection ring is configured to be moved back and forth by its own weight.

(3) A vertical groove continuous with the circumferential groove is provided on the outer periphery of the selection ring, the circumferential groove is formed so that the protrusion of the cylindrical cam can rotate approximately 240 degrees, and a stopper is provided at a position rotated approximately 1200 degrees from the vertical groove. 2. The dual-action writing instrument according to claim 1 or 2, characterized in that at least one of the cursive fonts is a mechanical pencil.