JPS5983586U

JPS5983586U - Knotsuku style pencil

Info

Publication number: JPS5983586U
Application number: JP16561783U
Authority: JP
Inventors: 柴田　保次
Original assignee: 株式会社柴田製作所
Priority date: 1983-10-26
Filing date: 1983-10-26
Publication date: 1984-06-06

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図は本考案に係るノック式シャープペンシルの要部
の拡大断面図、第２図は芯縁出量調整筒の拡径部に対す
る嵌合例を示す拡大断面図、第３図は本考案の変更実施
例を示す拡大断面図、第４図は従来品の要部の拡大断面
図である。１・・・軸継手、２・・・軸筒、５・・・拡径部、６・
・・ねじ溝部、７・・・芯縁出量調整筒、９・・・スト
ッパ一部、１０・・・締リング、１１・・・段部、１２
・・・芯チャツク、１６・・・コイルばね、１９・・・
口金。Fig. 1 is an enlarged cross-sectional view of the main parts of the knock-type mechanical pencil according to the present invention, Fig. 2 is an enlarged cross-sectional view showing an example of fitting the lead edge amount adjustment tube to the enlarged diameter part, and Fig. 3 is the present invention FIG. 4 is an enlarged sectional view of the main part of the conventional product. DESCRIPTION OF SYMBOLS 1... Shaft coupling, 2... Shaft cylinder, 5... Expanded diameter part, 6...
... Thread groove part, 7 ... Core edge amount adjustment tube, 9 ... Part of stopper, 10 ... Tightening ring, 11 ... Step part, 12
...Core chuck, 16...Coil spring, 19...
Base.

Claims

[Scope of utility model registration request]

(1) An enlarged diameter part having a certain length in the axial direction is provided on the inner surface of the shaft joint that joins the barrel and the base of the mechanical pencil, and a part of the stopper is provided at the tip of the enlarged diameter part, A stepped portion is provided at the rear end, and the tightening ring of the core chuck is slidably fitted into the enlarged diameter portion, and the length corresponds to the distance between part of the stopper and the tip of the tightening ring. In a knock-type mechanical pencil that regulates the amount of lead drawn out at a constant level, an enlarged diameter part that opens on the inner surface of the shaft joint to form a step at the same position from the tip to a position that extends a certain length in the axial direction. This enlarged diameter part has a part of a stopper at the tip, and the rear end side of the lead edge amount adjusting cylinder, into which the tightening ring is slidably fitted, is adjusted to match the desired lead delivery amount. Knock-type percentage type %, which is fitted and fixed, and the base has an inner wall in which the tip of the core edge adjustment cylinder is inscribed.

(2) A utility model in which the lead edge amount adjusting tube is fitted and fixed to the expanded diameter portion by driving the lead edge amount adjusting tube into the expanded diameter portion and crimping and fixing the same tube to the expanded diameter portion with a bonding force that can withstand writing pressure. Knock-type mechanical pencil according to registered claim No. 1