JPS5855990U

JPS5855990U - Shape pencil lead protector

Info

Publication number: JPS5855990U
Application number: JP15151781U
Authority: JP
Inventors: 石橋信
Original assignee: 石橋　信
Priority date: 1981-10-14
Filing date: 1981-10-14
Publication date: 1983-04-15
Also published as: JPS5851026Y2

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図は従来のシャープペンシルの芯保護装置
１　　の縦断面図、第２図以下は本考案の実施の一例を
］　　示すもので、第２図は本考案に係るシャープペン
シルの芯堡護装置の縦断面図、第３図は摺接体の二　　
部分縦断面図、第４図はチャックの正面図である。１０・・・芯保護パイプ、１１・・・先軸、１２・・・
スラ−イド穴、１３・・・芯、１４・・・摺接体、１５
・・・スライ：　　ド穴摺接体部、１６・・・摺接体止
め金具、１７・・・戻ｋ　　り止め体保持金具、２０・
・・戻り止め体、２１・・・芯）　　挿通孔。　　　　
　゛逗- Figure 1 is a vertical cross-sectional view of a conventional mechanical pencil lead protection device 1, Figure 2 and the following are examples of implementation of the present invention], and Figure 2 is a mechanical pencil lead protection device according to the present invention. A vertical cross-sectional view of the device, Figure 3 shows the two parts of the sliding body.
FIG. 4, a partial longitudinal sectional view, is a front view of the chuck. 10... Core protection pipe, 11... Tip shaft, 12...
Slide hole, 13...core, 14...sliding body, 15
... Sliding: hole sliding contact part, 16... sliding contact fitting, 17... return stopper body holding fitting, 20.
... Detent body, 21 ... core) insertion hole.
゛Visit

Claims

[Scope of utility model registration request]

A lead protection pipe is provided in front of the tip shaft to retreat as the lead wears, and a sliding contact member is provided at one end of the lead protection pipe that protrudes into the slide hole of the tip shaft and slides into contact with one surface of the slide hole. In the mechanical pencil lead protection device,
The sliding contact body includes a slide hole sliding contact portion made of elastic wood whose outer diameter is formed to be larger than the inner diameter of the slide hole and press-fitted therein, and the via on one side of the slide hole sliding contact portion. '&, the sliding contact part stopper that is press-fitted and the core detent holding metal fitting hole formed on the other side of the slide hole sliding contact part, and the pipe &2 are press-fitted. A detent body made of an elastic material, which is equipped with a lead detent body holding fitting, a detent body fitting hole formed in the holding fixture, and a core insertion hole having a diameter smaller than the diameter of the core. 2. A lead protection device for a mechanical pencil, characterized in that: 1. the outer edge of the holding fitting is caulked inward;