JPS62101169U

JPS62101169U -

Info

Publication number: JPS62101169U
Application number: JP19178385U
Authority: JP
Priority date: 1985-12-13
Filing date: 1985-12-13
Publication date: 1987-06-27

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を概略的に示す分解
斜視図、第２図は下シエルの内側を示す概略平面
図、第３図は下シエルの外側を示す概略平面図、
第４図は上シエルの内側を示す概略平面図、第５
図はシヤツタ板の上シエル側の面を示す概略平面
図、第６図はシヤツタ板の概略側面図、第７図は
シヤツタ板の下シエル側の面を示す概略平面図、
第８図はシヤツタ板の要部を示す一部切欠斜視図
、第９図はシヤツタ板がスピンドル挿入孔を閉蓋
した状態を下シエル側から示す平面図、第１０図
は第９図の―線面断面図、第１１図はシヤツ
タ板がスピンドル挿入孔を閉蓋した状態を下シエ
ル側から示す平面図である。第１２図は本考案の
他の実施例における上シエルの内側を示す概略平
面図であり、第１３図は上記上シエルを使用した
場合のデイスクカセツトの断側面図である。２……上シエル、３……下シエル、４……デイ
スク状回転記録媒体、５……シヤツタ板、２５，
３５……開口窓部、３３……スピンドル挿入孔、
３９……ガイド凹部、４１……磁気記録媒体、４
２……センターコア、５７……押圧部。 FIG. 1 is an exploded perspective view schematically showing an embodiment of the present invention, FIG. 2 is a schematic plan view showing the inside of the lower shell, and FIG. 3 is a schematic plan view showing the outside of the lower shell.
Figure 4 is a schematic plan view showing the inside of the upper shell;
6 is a schematic side view of the shutter plate; FIG. 7 is a schematic plan view showing the surface of the shutter plate on the lower shell side;
Fig. 8 is a partially cutaway perspective view showing the main parts of the shutter plate, Fig. 9 is a plan view showing the state in which the shutter plate closes the spindle insertion hole from the lower shell side, and Fig. 10 is the same as that shown in Fig. 9. A line sectional view and FIG. 11 are plan views showing the state in which the shutter plate closes the spindle insertion hole from the lower shell side. FIG. 12 is a schematic plan view showing the inside of the upper shell in another embodiment of the present invention, and FIG. 13 is a sectional side view of a disk cassette in which the above-mentioned upper shell is used. 2... Upper shell, 3... Lower shell, 4... Disc-shaped rotating recording medium, 5... Shutter plate, 25,
35...Opening window portion, 33...Spindle insertion hole,
39... Guide recess, 41... Magnetic recording medium, 4
2...Center core, 57...Press portion.

Claims

[Claims for Utility Model Registration] A thin rectangular upper shell and a lower shell, and a center that is rotatably housed between the upper shell and the lower shell and has a center hole in which a drive shaft is fitted. A disk-shaped rotating recording medium to which a core is attached, and a drive shaft for rotating the recording medium is bored in the lower shell to fit into a center hole of a center core attached to the recording medium. a drive shaft insertion hole; an opening window formed in at least one of the shell and the lower shell for inserting a magnetic head for writing and/or reading information signals on the recording medium; the drive shaft insertion hole and the opening; In a disk cassette having a shutter plate that opens and closes a window part, a pressure force is applied to the shutter part of the shutter plate facing the drive shaft insertion hole to press and support the recording medium when closing the drive shaft insertion hole. A disk cassette characterized by having a section.