JPS58131474U

JPS58131474U - disk cartridge

Info

Publication number: JPS58131474U
Application number: JP2748882U
Authority: JP
Inventors: 谷口　富蔵; 杉浦　康昭
Original assignee: 日立マクセル株式会社
Priority date: 1982-02-26
Filing date: 1982-02-26
Publication date: 1983-09-05

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１まこの考案に係るディスクカートリッジを適用
した磁気ディスクカートリッジの一例を示す分解斜視図
、第２図は同ディスクカートリ゛ンジの縦断面図、第３
図Ａ、　Ｂはそれぞれ上下ケースの融着部分を示す融着
前および融着後の断面−、第４図Ａ、　Ｂはそれぞれ磁
気ディスク挟持用の上下ハブを示す結合前および結合後
の断面図１．第５図Ａ、　Ｂはそれぞれ位置決め用凹お
よび凸部を示す圧入嵌着前ねよび嵌着後の断面図、第６
図は誤消去防止用可動子の設定部分を示す正面断面図、
第７図は可動子の操作窓を示す正面図、第８図はスライ
ダ復帰用ばねの係止ピンを示す断面図、第９図はシャッ
タ部材の動作説明図、第１０図はこの考案の要部の変形
構造を示す分解斜視図である。第１１図は要部の他の変形構造を示す斜視図、第１２図
は従来例の説明図である。１・・・ケース本体、１０・・・磁気ディスク、１３・
・・上ハブ、１４・・・下ハブ、１４ａ・・・環状ボス
部、１５．１００・・・中央孔、Ｒ１・・・中央孔内径
、Ｒ２・・・ボス部外径。Fig. 1 is an exploded perspective view showing an example of a magnetic disk cartridge to which the disk cartridge according to the present invention is applied; Fig. 2 is a vertical sectional view of the same disk cartridge;
Figures A and B are cross-sectional views of the fused portions of the upper and lower cases before and after fusion, respectively, and Figures 4A and B are sectional views of the upper and lower hubs for holding magnetic disks before and after fusion, respectively. 1. Figures 5A and 5B are cross-sectional views before and after press-fitting, showing the positioning recesses and protrusions, respectively;
The figure is a front sectional view showing the setting part of the mover for preventing accidental erasure.
Fig. 7 is a front view showing the operation window of the movable element, Fig. 8 is a sectional view showing the locking pin of the slider return spring, Fig. 9 is an explanatory diagram of the operation of the shutter member, and Fig. 10 is the main point of this invention. FIG. 3 is an exploded perspective view showing a modified structure of the part. FIG. 11 is a perspective view showing another modified structure of the main part, and FIG. 12 is an explanatory diagram of a conventional example. 1...Case body, 10...Magnetic disk, 13.
...Upper hub, 14...Lower hub, 14a...Annular boss portion, 15.100...Central hole, R1...Inner diameter of center hole, R2...Outer diameter of boss portion.

Claims

[Scope of utility model registration request]

A sheet-shaped magnetic disk rotatably set inside the case body, a pair of upper and lower hubs that are bonded to each other to sandwich the magnetic disk, and one of the hubs protrudes from the main surface of the two hubs. a disk cartridge comprising a central hole of the magnetic disk and an annular boss fitting into the central hole of the other hub, the inner diameter of the central hole of the magnetic disk being smaller than the outer diameter of the boss. .