JP2722691B2 - Floppy disk - Google Patents
Floppy diskInfo
- Publication number
- JP2722691B2 JP2722691B2 JP19579489A JP19579489A JP2722691B2 JP 2722691 B2 JP2722691 B2 JP 2722691B2 JP 19579489 A JP19579489 A JP 19579489A JP 19579489 A JP19579489 A JP 19579489A JP 2722691 B2 JP2722691 B2 JP 2722691B2
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- magnetic sheet
- floppy disk
- recording surface
- case
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明はフロッピ・ディスク（フレキシブル・ディス
ク・カートリッジ）に係り、特にケースと磁気シート間
に保護シートが設けられるフロッピ・ディスクに関す
る。Description: TECHNICAL FIELD The present invention relates to a floppy disk (flexible disk cartridge), and more particularly to a floppy disk provided with a protective sheet between a case and a magnetic sheet.
（従来の技術） フロッピ・ディスクには各種サイズ・構造のものが知
られでいるが、例えば3.5インチフロッピ・ディスクで
は第２図に示すように、磁気記録媒体たる磁気シート31
とこの磁気シート31を収納するケース32との間に保護シ
ート（ライナーと称される）33を介在させ、この保護シ
ート33をケース32の内面に一端を固定した板ばね（ディ
フターと称される）の他端（自由端）で押圧し、これに
より保護シート33を磁気シート31の記録面に接触させ、
以て磁気シート31の記録面の清掃と摩耗防止とを図るよ
うにしている。(Prior Art) Various sizes and structures are known for floppy disks. For example, a 3.5-inch floppy disk has a magnetic sheet 31 as a magnetic recording medium as shown in FIG.
A protective sheet (referred to as a liner) 33 is interposed between the magnetic sheet 31 and a case 32 for accommodating the magnetic sheet 31. ) At the other end (free end), thereby bringing the protective sheet 33 into contact with the recording surface of the magnetic sheet 31,
Thus, the recording surface of the magnetic sheet 31 is cleaned and wear is prevented.
即ち、回転駆動される磁気シート31の記録面がケース
32の内面に直接接触して摩耗するのを防止する。また、
ケース32に設けられるヘッドウィンド部付近で磁気シー
ト31の記録面に付着する埃やごみを除去するような構造
になっている。That is, the recording surface of the magnetic sheet 31 driven to rotate is a case.
Prevents wear by directly contacting the inner surface of 32. Also,
The structure is such that dust and dirt adhering to the recording surface of the magnetic sheet 31 near the head window provided in the case 32 are removed.
（発明が解決しようとする課題） 上述したように、従来の3.5インチ等のフロッピ・デ
ィスクでは、保護シートを板ばねで磁気シートの記録面
に接触させ、ヘッドウィンド部付近で磁気シートの記録
面に付着する埃やごみを除去するようにしているが、こ
こで「除去」とはヘッドウィンド部における磁気シート
の記録面からの除去であって、その除去された埃やごみ
は保護シートと記録面との接触部位に集積され累積され
る。この埃等の累積は減少することなく増大を続ける。
そして、保護シートに劣化がある場合には増幅傾向が一
層強くなる。(Problems to be Solved by the Invention) As described above, in a conventional 3.5-inch floppy disk or the like, the protection sheet is brought into contact with the recording surface of the magnetic sheet by a leaf spring, and the recording surface of the magnetic sheet is near the head window. The dust and dirt attached to the magnetic sheet are removed from the recording surface of the magnetic sheet in the head window, and the removed dust and dirt are removed from the protective sheet and the recording sheet. It accumulates and accumulates at the site of contact with the surface. This accumulation of dust and the like continues to increase without decreasing.
When the protection sheet is deteriorated, the amplification tendency is further increased.
そうすると、この堆積された埃やごみが原因となって
磁気シート記録面に傷が付き、あるいは、埃等が磁気シ
ート記録面に付着することが考えられ、再生出力の低下
を招来するという問題がある。Then, it is considered that the deposited dust and dirt may damage the recording surface of the magnetic sheet, or dust or the like may adhere to the recording surface of the magnetic sheet, thereby causing a problem of lowering the reproduction output. is there.
本発明はこのような問題に鑑みなされたもので、その
目的は、磁気シート記録面と保護シート間に埃等が堆積
しない構造のフロッピ・ディスクを提供することにあ
る。The present invention has been made in view of such a problem, and an object of the present invention is to provide a floppy disk having a structure in which dust and the like do not accumulate between a recording surface of a magnetic sheet and a protective sheet.
（課題を解決するための手段） 前記目的を達成するために、本発明のフロッピ・ディ
スクは次の如き構成を有する。(Means for Solving the Problems) In order to achieve the above object, a floppy disk of the present invention has the following configuration.
即ち、本発明のフロッピ・ディスクは、磁気記録媒体
たる磁気シートとこの磁気シートを収納するケースとの
間に介在させた保護シートを、ケース内面に固定した板
ばねで磁気シート記録面に接触させるようにしたフロッ
ピ・ディスクにおいて；前記保護シートの前記板ばね近
傍の所定部位に半径方向に細長の穴を設けたこと；を特
徴とするものである。That is, in the floppy disk of the present invention, the protective sheet interposed between the magnetic sheet as the magnetic recording medium and the case for storing the magnetic sheet is brought into contact with the magnetic sheet recording surface by the leaf spring fixed to the inner surface of the case. The above-mentioned floppy disk is characterized in that an elongated hole is provided in a predetermined portion of the protective sheet near the leaf spring in a radial direction.
（作 用） 次に、前記の如く構成される本発明のフロッピ・ディ
スクの作用を説明する。(Operation) Next, the operation of the floppy disk of the present invention configured as described above will be described.
板ばね近傍の保護シートとケースの間には隙間ができ
ている。従って、保護シートと磁気シート記録面の接触
部位に累積される埃等は、保護シートの板ばね近傍の所
定部位に設けた半径方向に細長の穴から前記「隙間」に
排出されることとなり、保護シートと磁気シート記録面
間に埃等が一方的に堆積しないようにすることができ
る。There is a gap between the protective sheet and the case near the leaf spring. Therefore, dust and the like accumulated in the contact portion between the protective sheet and the recording surface of the magnetic sheet are discharged to the “gap” from a radially elongated hole provided in a predetermined portion near the leaf spring of the protective sheet, Dust and the like can be prevented from unilaterally depositing between the protective sheet and the recording surface of the magnetic sheet.
（実 施 例） 以下、本発明の実施例を添付図面を参照して説明す
る。Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
第１図は本発明の一実施例に係るフロッピ・ディスク
を示す。第１図において、保護シート33は、第１図
（ａ）に示すように、ドーナツ状のもので、従来ではヘ
ッドウィンド部36以外には穴がなく、通常周縁部がケー
ス32の内面に貼着されることによってケース32の内面に
固定保持される。それ故、板ばね34の自由端で押圧する
と、保護シート33は磁気シート31の記録面に容易に当接
接触し、保護シート33とケース32間に隙間35が形成され
る（第２図参照）。FIG. 1 shows a floppy disk according to an embodiment of the present invention. In FIG. 1, the protection sheet 33 has a donut shape as shown in FIG. 1 (a), and has no hole except for the head window portion 36 in the related art, and the peripheral portion is usually attached to the inner surface of the case 32. By being worn, it is fixed and held on the inner surface of case 32. Therefore, when pressed at the free end of the leaf spring 34, the protection sheet 33 easily comes into contact with the recording surface of the magnetic sheet 31, and a gap 35 is formed between the protection sheet 33 and the case 32 (see FIG. 2). ).
そこで、本発明では、保護シート33の板ばね34近傍の
所定部位に半径方向に細長（図示例では長方形）の穴１
を形成してある。Therefore, according to the present invention, an elongated (rectangular in the illustrated example) hole 1 is formed at a predetermined portion of the protection sheet 33 near the leaf spring 34 in the radial direction.
Is formed.
その結果、保護シート33と磁気シート31の記録面の接
触部位に集積される埃等は、穴１から隙間35へ排出され
ることになり、保護シート33と磁気シート31の記録面の
接触部位に埃等が一方的に集積され蓄積されて行くのを
防止できる。As a result, dust and the like accumulated at the contact portion between the protection sheet 33 and the recording surface of the magnetic sheet 31 are discharged from the hole 1 to the gap 35, and the contact portion between the protection sheet 33 and the recording surface of the magnetic sheet 31 is formed. Dust and the like can be prevented from being unilaterally accumulated and accumulated.
（発明の効果） 以上説明したように、本発明のフロッピ・ディスクに
よれば、保護シートに穴を設け、保護シートと磁気シー
ト記録面の接触部位に集積される埃等を当該穴から保護
シートとケース間の隙間へ排出させるようにしたので、
埃等の一方的な累積をなくすことができ、磁気シート記
録面の傷付や埃等付着による再生出力低下の発生可能性
を小さくできる効果がある。(Effects of the Invention) As described above, according to the floppy disk of the present invention, a hole is formed in the protective sheet, and dust or the like accumulated in the contact portion between the protective sheet and the recording surface of the magnetic sheet is removed from the hole through the protective sheet. So that it is discharged into the gap between the case
One-sided accumulation of dust and the like can be eliminated, and there is an effect that the possibility of the reproduction output drop due to scratches on the recording surface of the magnetic sheet and adhesion of dust or the like can be reduced.
第１図は本発明の一実施例に係るフロッピ・ディスクの
構成例を示す概略平面図（第１図（ａ））および概略断
面図（第１図（ｂ））、第２図は従来のフロッピ・ディ
スクの概略断面図である。 １……細長の穴、31……磁気シート、 32……ケース、33……保護シート、 34……板ばね、35……隙間、 36……ヘッドウィンド部。FIG. 1 is a schematic plan view (FIG. 1 (a)) and a schematic sectional view (FIG. 1 (b)) showing a configuration example of a floppy disk according to an embodiment of the present invention, and FIG. FIG. 2 is a schematic sectional view of a floppy disk. 1 ... elongated hole, 31 ... magnetic sheet, 32 ... case, 33 ... protective sheet, 34 ... leaf spring, 35 ... gap, 36 ... head window.
Claims (1)
ートを収納するケースとの間に介在させた保護シート
を、ケース内面に固定した板ばねで磁気シート記録面に
接触させるようにしたフロッピ・ディスクにおいて；前
記保護シートの前記板ばね近傍の所定部位に半径方向に
細長の穴を設けたこと；を特徴とするフロッピ・ディス
ク。1. A floppy disk wherein a protective sheet interposed between a magnetic sheet as a magnetic recording medium and a case for accommodating the magnetic sheet is brought into contact with a recording surface of the magnetic sheet by a leaf spring fixed to an inner surface of the case. A floppy disk according to claim 1, wherein said protective sheet is provided with an elongated hole in a radial direction at a predetermined portion near said leaf spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19579489A JP2722691B2 (en) | 1989-07-28 | 1989-07-28 | Floppy disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19579489A JP2722691B2 (en) | 1989-07-28 | 1989-07-28 | Floppy disk |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0359860A JPH0359860A (en) | 1991-03-14 |
| JP2722691B2 true JP2722691B2 (en) | 1998-03-04 |
Family
ID=16347083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19579489A Expired - Fee Related JP2722691B2 (en) | 1989-07-28 | 1989-07-28 | Floppy disk |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2722691B2 (en) |
-
1989
- 1989-07-28 JP JP19579489A patent/JP2722691B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0359860A (en) | 1991-03-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |