JPS5860486U

JPS5860486U - Shape pencil

Info

Publication number: JPS5860486U
Application number: JP15519281U
Authority: JP
Inventors: 藤原政七
Original assignee: 有限会社　東京金属製作所
Priority date: 1981-10-17
Filing date: 1981-10-17
Publication date: 1983-04-23
Also published as: JPS5845115Y2

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図は本考案シャープペンシルの筆記可能な状態を示
す一部縦断正面図、第２図は筆記芯、可動先金、可動環
、細管を引込むための動作開始時を示す同正面図、第３
図は該動作中の同正面図、゛第４図は該動作中における
筆記芯、細管、可動先金、可動環の引込み直前を示す同
正面図、第５図は筆記芯、細管、可動先金、可動環を引
込んだ直後の状態を示す同正面図、第６図は完全に引込
んだ筆記不要時の状態を示す同正面図である。図中、１は軸筒、２はチャック、３は引込バネ、４は締
リング、５は細管、６は可動先金、７は芯保持環、８は
可動環、９は芯ケース、１０はクッションバネ、１１は
中具、１２はクッションバネ　゛の作動機構、ａは筆記
芯である。Fig. 1 is a partially longitudinal front view showing the mechanical pencil of the present invention in a writable state; 3
The figure is a front view of the same during said operation, Figure 4 is a front view of the writing lead, thin tube, movable tip, and the movable ring immediately before retraction during said operation, and Figure 5 is the same front view showing the writing tip, thin tube, and movable tip during said operation. FIG. 6 is a front view showing the state immediately after the movable ring is retracted, and FIG. 6 is a front view showing the state when writing is not required when the movable ring is completely retracted. In the figure, 1 is a barrel, 2 is a chuck, 3 is a retraction spring, 4 is a tightening ring, 5 is a thin tube, 6 is a movable tip, 7 is a lead holding ring, 8 is a movable ring, 9 is a lead case, 10 is a A cushion spring, 11 is a middle tool, 12 is an operating mechanism of the cushion spring, and a is a writing lead.

Claims

[Scope of utility model registration request]

A chuck 2 provided in the barrel 1 is pulled in the retraction direction by a retraction spring 3, the chuck is fitted into the tightening ring 4 to grip and hold the writing lead a, and the writing lead a is released from the tightening ring 4. A releasing writing instrument, which is configured so that a movable thin tube 5 protruding from the tip of the shaft tube 1 is pulled into the shaft decoration 1 by a knocking operation of the knock cap when writing is not required. An elastic core retaining ring 7 is attached to the inner surface of the movable tip 6 provided at the base of the chuck 2, and the inner surface of the movable ring 8 into which the chuck 2 is fitted and removed is formed into a bowl-shaped slope, and the base of the chuck 2 is attached to the core retaining ring 7. The flange 203 provided near the proximal end of the chuck 2 is engaged with the inside of the tip of the core case 9 so that the flange 203 of the chuck 2 and the core case 9 are tightly fitted to the inside of the case 9 so as to be movable. A cushion spring 10 is interposed between the core case 9 and the bushing 901 provided near the inner tip of the core case 9 and the shaft tube 1.
A retraction spring 3 is disposed across the inner member 11, and a movable ring 8 is disposed between the tightening ring 4 and the movable tip 6 in the tip of the shaft tube 1, and the movable ring 8 is arranged between the tip of the core case 9 and the movable tip 6. The base end of the inner tool 11 and the distance 1 between these ends constitute an operating mechanism 12 of the cushion spring, and the operating mechanism has a distance 1 between the two ends.
A mechanical pencil that is longer than the total forward distance of Chuck 2.