JPS60191385U

JPS60191385U - Push-out writing instrument

Info

Publication number: JPS60191385U
Application number: JP7961084U
Authority: JP
Inventors: 趙　文貴
Original assignee: Individual
Current assignee: Individual
Priority date: 1984-05-31
Filing date: 1984-05-31
Publication date: 1985-12-18
Also published as: JPH0333509Y2

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]

一第１図はこの考案の一実施例を示す押出式筆記具の分
解斜視図、第２図はこめ考案の押出式筆記具の使用可能
状態を委す縦断面図、第３図はこの考案における押出式
筆記具の芯押出し動作状態を　−示す縦断面図、第４図
はこの考案の押出式筆記具の先端部の拡大斜視図、第５
図ａはこの考案における芯の削り状態を示す説明図、第
５図すは第５図ａのＢ−Ｂ線に沿う断面図、第６図はこ
の考案におけるチャック筒の他の実施例を示す側面図で
ある。１・・・軸筒、２・・・係止筒、３・・・チャック筒、
４・・・締付リング、５・・・内筒、６・・・ばね、７
・・・カバー筒、８・・・押圧ヘッド、９・・・消ゴム
、１０・・・刃、１１・・・ガイド用突部、１３・・・
フランジ、１４・・・スリット、２１・・・円筒部、２
２ａ、２２ｂ・・・係止片、２３　ａ、　２３　ｂ・・
・爪、２４・・・環状突部、３１・・・軸芯孔、３２　
ａ、　　３２　ｂ・・・スリット、４１・・・マーク、
８１・・・消ゴム収納部、８２・・・嵌合部。Fig. 1 is an exploded perspective view of a push-out writing instrument that shows one embodiment of this invention, Fig. 2 is a vertical sectional view showing the usable state of the push-out writing instrument of this invention, and Fig. 3 is an exploded perspective view of an extrusion-type writing instrument of this invention. Fig. 4 is an enlarged perspective view of the tip of the extrusion-type writing instrument of this invention;
Figure a is an explanatory diagram showing the state of cutting the core in this invention, Figure 5 is a sectional view taken along line B-B in Figure 5 a, and Figure 6 shows another embodiment of the chuck tube in this invention. FIG. 1... Shaft cylinder, 2... Locking cylinder, 3... Chuck cylinder,
4... Tightening ring, 5... Inner cylinder, 6... Spring, 7
... Cover cylinder, 8 ... Pressing head, 9 ... Eraser, 10 ... Blade, 11 ... Guide protrusion, 13 ...
Flange, 14...Slit, 21...Cylindrical part, 2
2a, 22b...locking pieces, 23a, 23b...
・Claw, 24... Annular protrusion, 31... Shaft hole, 32
a, 32 b...slit, 41... mark,
81... Eraser storage section, 82... Fitting section.

Claims

[Scope of utility model registration request]

(1) A shaft cylinder with both ends open, and a pair of opposing locking pieces, one end of which is connected to the opening at one end of the shaft cylinder so that the axis line coincides with the other end and extendable to the other end. A locking tube having a lead-clamping claw at the tip of the locking piece, a pencil lead movably disposed on the axis within the locking tube, and a pencil lead movably inserted into the core hole, and each of the above. a chuck tube having a pair of slits facing the locking piece into which the winter melon is loosely inserted; A tightening ring that tightens and opens the chuck tube and expands the locking piece as it reciprocates in the axial direction; an inner cylinder coupled to the inner cylinder, a spring interposed between an annular protrusion provided on the inner surface of the locking cylinder where the connecting edge of the inner cylinder and the tightening ring abut, and an outer periphery of the locking cylinder. A push-out writing instrument characterized by comprising a covering cylinder and a pressing head removably fitted to the outer end of the inner cylinder.

(2) The push-out writing instrument according to claim 1, wherein the tightening ring has a mark on its outer peripheral surface.

(3) The extrusion type writing instrument according to claim 1, wherein the cover tube has a through hole through which the mark of the tightening ring can be seen from the outside.

(4) The push-out writing instrument according to claim 1, wherein the locking piece is curved inward.

(5) The extrusion type writing implement according to claim 1, wherein the outer diameter of the chuck tube is tapered so as to increase toward the tip thereof.

(6) The push-out writing instrument according to claim 1, wherein the chuck portion has a flange on the upper part.

(7) The extrusion type writing instrument according to claim 1, wherein the tip of the chuck part has a slit that communicates with the pawl loose insertion slit.

(8) The push-out writing instrument according to claim 1, wherein the pressing head has a ■-shaped blade for sharpening the lead and a lead guide.

(9) The push-out writing instrument according to claim 1, wherein the pressing head has an eraser.