JPH02123768U

JPH02123768U -

Info

Publication number: JPH02123768U
Application number: JP2982289U
Authority: JP
Priority date: 1989-03-17
Filing date: 1989-03-17
Publication date: 1990-10-11

Description

[Brief explanation of drawings]

第１図は本考案の実施例１によるフロツピーデ
イスクの分解斜視図、第２図は実施例１のアツパ
ーシエルの平面図、第３図は実施例１の要部の断
面図、第４図は従来のフレキシブル磁気デイスク
カートリツジの一例の３．５″マイクロフロツピ
ーデイスクの分解斜視図、第５図は同従来のフロ
ツピーデイスクのアツパーシエルの平面図、第６
図は同従来のフロツピーデイスクのロアーシエル
の平面図、第７図は同従来のフロツピーデイスク
の断面図、第８図は同従来のフロツピーデイスク
の要部の断面図である。１……アツパーシエル、２……ロアーシエル、
３……シヤツター、４……金属ハブ、５……接着
リング、６ａ，６ｂ……不織布、７……センター
プレート、８……フレキシブル磁気デイスク、９
……リフター、１０……開閉バネ、１１……ライ
トプロテクター、１２……小突起、１３……傾斜
面、１４……フロツピーデイスクドライブの駆動
軸。 Fig. 1 is an exploded perspective view of a floppy disk according to Embodiment 1 of the present invention, Fig. 2 is a plan view of the upper shell of Embodiment 1, Fig. 3 is a sectional view of the main parts of Embodiment 1, and Fig. 4 is FIG. 5 is an exploded perspective view of a 3.5" micro floppy disk as an example of a conventional flexible magnetic disk cartridge. FIG. 5 is a plan view of the top shell of the conventional floppy disk, and FIG.
7 is a sectional view of the conventional floppy disk, and FIG. 8 is a sectional view of the main parts of the conventional floppy disk. 1... Atsupashiel, 2... Lower Ciel,
3... Shutter, 4... Metal hub, 5... Adhesive ring, 6a, 6b... Nonwoven fabric, 7... Center plate, 8... Flexible magnetic disk, 9
... Lifter, 10 ... Opening/closing spring, 11 ... Light protector, 12 ... Small protrusion, 13 ... Inclined surface, 14 ... Drive shaft of floppy disk drive.

Claims

[Claims for Utility Model Registration] 1. An upper protective case member having a small protrusion on its inner wall, a lower protective case member having a lifter facing the small protrusion on the inner wall, and a space between the upper protective case member and the upper protective case member. a protective case fixed to the upper protective case member and the lower protective case member, respectively; a nonwoven fabric fixed to the inner surfaces of the upper protective case member and the lower protective case member; In a flexible magnetic disk cartridge including a flexible magnetic disk, the thickness of the upper protective case member is increased toward the inner circumference so that the space becomes narrower toward the inner circumference along the radial direction of the flexible magnetic disk. 1. A flexible magnetic disk cartridge, characterized in that the structure has an inclined surface, and the small protrusion is formed on the inclined surface. 2. The flexible magnetic disk cartridge according to claim 1, wherein the length of the small protrusion in the circumferential direction of the flexible magnetic disk is increased toward the inner circumference of the flexible magnetic disk.