JPS59104373U

JPS59104373U - magnetic disk cassette

Info

Publication number: JPS59104373U
Application number: JP20244682U
Authority: JP
Inventors: 根本　常夫; 治小泉
Original assignee: ソニー株式会社
Priority date: 1982-12-28
Filing date: 1982-12-28
Publication date: 1984-07-13
Also published as: JPS6316055Y2

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図は本考案の実施例の磁気ディスクカセットの組立
手順を説明するための゛工程図、第２Ａ図はねじりコイ
ルバネの平面図、・第２Ｂ図は第２Ａ図の側面図、・第
３図はねじりコイルバネの部分詳細図、第４図はシャッ
ターのバネ係止部の構造を示す部分斜視図、第５図はバ
ネを係止した状態の第４図と同様な部分斜視図、第６図
、第７図及び第８図は夫々バネの係止構造の変形例を示
す第４図と同様な部分斜視図、第９Ａ図及び第９Ｂ図は
シャッターの動作を説明するためのディスフカセラ斗の
部分平面図、第１０Ａ図及び第１０Ｂ図は　。シャッターのロック機構を示す部分斜視図である。なお図面に用いた符号において、１・・・・・・磁気デ
ィスク、２・・・・・・上ハーフ、３・・・−下ハ−７
，４・・・・・・シャッター、５・・・・・・ねじりコ
イルバネ、５ａ・・・・・・巻回部、５ｂ、　　５ｃ・
・・・・・端、５ｄ・・・・・・軸受部、６・・・・・
・支軸、７・・・・・・係止部、１０・・・・・・ヘッ
ド挿入孔、１２・・・・・・窓孔、である。Fig. 1 is a process diagram for explaining the assembly procedure of a magnetic disk cassette according to an embodiment of the present invention, Fig. 2A is a plan view of a torsion coil spring, - Fig. 2B is a side view of Fig. 2A, - Fig. 3 The figure is a partial detailed view of the torsion coil spring, Figure 4 is a partial perspective view showing the structure of the spring locking part of the shutter, Figure 5 is a partial perspective view similar to Figure 4 with the spring locked, and Figure 6 FIGS. 7 and 8 are partial perspective views similar to FIG. 4 showing modified examples of the spring locking structure, respectively, and FIGS. 9A and 9B are diagrams showing a disengagement caser for explaining the operation of the shutter. The partial plan view, Figures 10A and 10B are as follows. FIG. 3 is a partial perspective view showing a locking mechanism of the shutter. In addition, in the symbols used in the drawings, 1...magnetic disk, 2...upper half, 3...-lower half 7
, 4... Shutter, 5... Torsion coil spring, 5a... Winding portion, 5b, 5c.
... End, 5d ... Bearing part, 6 ...
- Support shaft, 7...Locking portion, 10...Head insertion hole, 12... Window hole.

Claims

[Scope of utility model registration request]

A cassette housing consisting of upper and lower halves for accommodating a flexible magnetic disk, and a shutter slidably attached to the cassette housing to open and close a head insertion hole formed in the cassette housing; The shutter is biased to a position that closes the head insertion hole by a V-shaped torsion coil spring consisting of a winding part and straight parts at both ends, and the shutter has one end of the straight part of the torsion coil spring. A locking portion is provided to lock the shutter in a state where it cannot be easily removed, and the other straight portion of the torsion coil spring is provided with a locking portion that connects this end to a support shaft portion formed on one of the upper and lower halves. 1. A magnetic disk cassette characterized in that a fitting portion is formed in the magnetic disk cassette so that the fitting portion can be fitted rotatably in a direction perpendicular to the axis of the magnetic disk cassette.