JPS6423776U

JPS6423776U -

Info

Publication number: JPS6423776U
Application number: JP11505787U
Authority: JP
Priority date: 1987-07-29
Filing date: 1987-07-29
Publication date: 1989-02-08

Description

[Brief explanation of the drawing]

第１図乃至第６図は本考案の第１実施例に係る
デイスクカートリツジを示し、第１図は分解斜視
図、第２図は上ケースを除去して内部の構成を示
す平面図、第３図はデイスク駆動装置内への挿入
状態を示す平面図、第４図は窓孔の開放状態を示
す平面図、第５図は光学ヘツド及び励磁コイルの
装着状態を示す要部断面図、第６図はデイスクカ
ートリツジを反転した場合のデイスク駆動装置内
への挿入状態を示す平面図である。第７図は第２
実施例に係るデイスクカートリツジの断面図、第
８図は第３実施例に係るデイスクカートリツジの
上ケースを除去した平面図、第９図は第３実施例
に係るデイスクカートリツジの要部断面図、第１
０図は第４実施例に係るデイスクカートリツジの
上ケースを除去した平面図、第１１図は第５実施
例に係るデイスクカートリツジの上ケースを除去
した平面図である。第１２図乃至第１４図は従来
技術を示すものであつて、第１２図は従来のデイ
スクカートリツジの斜視図、第１３図及び第１４
図はシヤツタの開成動作を説明する要部平面図で
ある。１：下ケース、２：第２のシヤツタ板、３：デ
イスク状記録媒体、４：第２のシヤツタ板、５：
保持ローラ、６：付勢ローラ、７：上ケース、８
：接合用壁、９：窓孔、１０：接続片、１１：保
持突起、１２：スリツト、１３：ねじ、１４：透
孔、１５：アーム、１６：付勢ばね、２１：シヤ
ツタ、２２，２３：シヤツタ板、２４：フランジ
、２７：切欠、３１：運動変換部材、３５：スト
ツパ、Ａ：デイスク駆動装置、Ｂ，Ｃ：駆動手段
、Ｄ：光学ヘツド、Ｅ：励磁コイル。 1 to 6 show a disk cartridge according to a first embodiment of the present invention, in which FIG. 1 is an exploded perspective view, FIG. 2 is a plan view showing the internal structure with the upper case removed, and FIG. 3 is a plan view showing the state of insertion into the disk drive device, FIG. 4 is a plan view showing the window hole in the open state, FIG. FIG. 6 is a plan view showing a state in which the disk cartridge is inserted into the disk drive device when the disk cartridge is reversed. Figure 7 is the second
FIG. 8 is a plan view of the disk cartridge according to the third embodiment with the upper case removed; FIG. 9 is a cross-sectional view of the main part of the disk cartridge according to the third embodiment. Figure, 1st
0 is a plan view of the disk cartridge according to the fourth embodiment with the upper case removed, and FIG. 11 is a plan view of the disk cartridge according to the fifth embodiment with the upper case removed. 12 to 14 show the prior art, in which FIG. 12 is a perspective view of a conventional disk cartridge, and FIGS.
The figure is a plan view of essential parts for explaining the opening operation of the shutter. 1: lower case, 2: second shutter plate, 3: disk-shaped recording medium, 4: second shutter plate, 5:
Holding roller, 6: Urging roller, 7: Upper case, 8
: Connection wall, 9: Window hole, 10: Connection piece, 11: Holding protrusion, 12: Slit, 13: Screw, 14: Through hole, 15: Arm, 16: Biasing spring, 21: Shutter, 22, 23 : Shutter plate, 24: Flange, 27: Notch, 31: Motion conversion member, 35: Stopper, A: Disk drive device, B, C: Drive means, D: Optical head, E: Excitation coil.

Claims

[Scope of Claim for Utility Model Registration] (1) In a disk cartridge comprising a shutter for opening and closing a window hole provided in the cartridge case and rotatably storing a disk-shaped recording medium therein, the cartridge case A through hole having substantially the same shape as the window hole is formed between the inner surface of the disk cartridge and the disk-shaped recording medium, and a circular shutter that rotates in conjunction with the insertion of the disk cartridge into the disk drive device is installed. A disc cartridge that is characterized by: (2) In the disk cartridge described in claim (1) of the utility model registration, the two shutters formed in a circular flat plate shape are connected to the inner surface of the upper case constituting the cartridge case and the double-sided recording type. and a front surface of the disk-shaped recording medium, and between an inner surface of a lower case constituting the cartridge case and a back surface of the disk-shaped recording medium. (3) In the disk cartridge described in claim (1) of the utility model registration claim, the one shutter formed in a circular flat plate shape is connected to the inner surface of the upper case constituting the cartridge case and the single-sided recording type. A disk cartridge, characterized in that it is interposed between a recording surface of the disk-shaped recording medium and a recording surface of the disk-shaped recording medium. (4) In the disc cartridge according to claim (1) of the utility model registration, the outer peripheral edges of two shutter plates are joined to form the hollow cylindrical shutter, and the disc-shaped shutter is disposed within the shutter. A disk cartridge characterized by rotatably storing a recording medium. (5) Scope of claims for utility model registration, paragraphs (2) to (4)
3. The disk cartridge according to item 1, wherein a part of the outer peripheral edge of the shutter protrudes outward from a side surface of the cartridge case. (6) In the disk cartridge according to claim (5) of the utility model registration, a connecting means is provided on the outer periphery of the shutter to ensure connection with a shutter driving means provided in a disk drive device. A disk cartridge characterized by forming a. (7) The disc cartridge according to claim (6) of the utility model registration, characterized in that, as the joining means, a rough surface or an engagement tooth row is formed on the outer peripheral edge of the shutter. Tritsuji. (8) In the disk cartridge according to claim (1) of the utility model registration, a motion is provided in the cartridge case to convert the insertion force of the disk cartridge into the disk drive device into rotational force of the shutter. A disk cartridge featuring a conversion component inside. (9) The disk cartridge according to claim (8) of the utility model registration, characterized in that a friction wheel or a pinion is used as the motion converting member.