JPS62289982A - Floppy disk - Google Patents

Floppy disk

Info

Publication number
JPS62289982A
JPS62289982A JP13418186A JP13418186A JPS62289982A JP S62289982 A JPS62289982 A JP S62289982A JP 13418186 A JP13418186 A JP 13418186A JP 13418186 A JP13418186 A JP 13418186A JP S62289982 A JPS62289982 A JP S62289982A
Authority
JP
Japan
Prior art keywords
floppy disk
weight
disk
attached
doughnut
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.)
Pending
Application number
JP13418186A
Other languages
Japanese (ja)
Inventor
Tadashi Tsuyuki
正 露木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP13418186A priority Critical patent/JPS62289982A/en
Publication of JPS62289982A publication Critical patent/JPS62289982A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To reduce the surface shake of a floppy disk by attaching a doughnut- shaped soft weight to the outermost peripheral part of the floppy disk. CONSTITUTION:A doughnut-shaped weight 10 is attached to a floppy disk 11. Any weight is used if it is soft. For example, materials like a rubber are cut into a doughnut and are attached. Resins may be used. An optimum value of its weight has the rotation number, the diameter of the flexible disk, etc., as parameters. If it is too heavy, the flexible disk is inclined down by the influence of gravity; and if it is too light, it means nothing. Since the weight increases the centrifugal of the floppy disk, the occurrence of surface shake is reduced.

Description

【発明の詳細な説明】 3、発明の詳細な説明 〔産業上の利用分野〕 スピンドルモーターがフロッピーディスクを回転させ、
磁気ヘッドがフロッピーディスクニ接触しながら記録再
生を行なう磁気記録装置に使用するフロッピーディスク
に関する。
[Detailed Description of the Invention] 3. Detailed Description of the Invention [Field of Industrial Application] A spindle motor rotates a floppy disk,
The present invention relates to a floppy disk used in a magnetic recording device in which a magnetic head performs recording and reproduction while making contact with a floppy disk.

〔従来の技術〕[Conventional technology]

従来のフロッピーディスクを、525インチのミニフロ
ッピーディスクを例にとって示す。
A conventional floppy disk will be explained using a 525-inch mini-floppy disk as an example.

第2図(a) I (b)はジャケットを除いたディス
クの外形図である◇磁性層を塗布したポリエステルフィ
ルムを円盤状に打ちぬいただけのもので、シンプルな形
状をしている。
Figures 2(a) and 2(b) are external drawings of the disk without the jacket.◇It has a simple shape, consisting of a disk-shaped punch made from a polyester film coated with a magnetic layer.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

従来形のフロッピーディスクを使用するフロッピーディ
スクドライブは、磁気ヘッドとフロッピーディスクの接
触方法として以下に上げる2つの方法のいずれか一方を
とっていた。
A conventional floppy disk drive using a floppy disk uses one of the following two methods for contacting the magnetic head and the floppy disk.

(1)磁気ヘッドまたはバットでフロッピーディスクを
はさむ。ある一定のはさみこみ荷重で磁気ヘッドとフロ
ッピーディスクの接触を良好に保つ。
(1) Grip the floppy disk with a magnetic head or bat. To maintain good contact between a magnetic head and a floppy disk under a certain pinching load.

(2)  磁fiヘッドを70ツピ一デイスク面に対し
ある一定量突き出させる。フロッピーディスクをしなら
せ、磁気ヘッドとフロッピーディスクノ接触を良好に保
つ。
(2) Make the magnetic FI head protrude a certain amount from the disk surface by 70 pins. To make the floppy disk flex and maintain good contact between the magnetic head and the floppy disk.

(1)の方法はデジタル信号を記録するコンビューター
周辺機器のフロッピーディスクドライブで使用され、(
2)の方法はビデオフロッピーで使用されている。
Method (1) is used in floppy disk drives of computer peripherals that record digital signals;
Method 2) is used in video floppies.

しかし、(1)の方法は、高速回転時に、ヘッド及びフ
ロッピーディスクの磨耗が大きいOまだ(2)の方法は
外周側での接触状態に問題がある0そこで、ベルスーイ
形のヘッド、フロッピーディスク接触法が提案された。
However, method (1) causes a large amount of wear on the head and floppy disk during high-speed rotation, while method (2) has a problem with the contact condition on the outer circumference. A law was proposed.

(昭和61年度電子通信学会総合全国大会予講集1−1
86N’l’T電通研、安田、金子) この方法のポイントはいかにフロッピーディスクの面振
れをすくなく回転させるか、にあるO本発明の目的はフ
ロッピーディスクに改良をほどこすことにより、フロッ
ピーディスクの面ぶれをすくなくすることにある0 〔問題点を解決するための手段〕 本発明フロッピーディスクは最外層部にドーナッツ状の
やわらかい重りをつけた。
(Collection of preparatory lectures for the 1986 IEICE Comprehensive National Conference 1-1
(86N'l'T Dentsu Research Institute, Yasuda, Kaneko) The point of this method is how to rotate the floppy disk while minimizing its surface runout.The purpose of the present invention is to improve the floppy disk by improving the floppy disk. [Means for solving the problem] The floppy disk of the present invention has a donut-shaped soft weight attached to the outermost layer.

〔作 用〕 重りは回転するフロッピーディスクの遠心力を増すので
、ディスクが強い力で一様に外側に引っばられるように
なり、上下からの力に起因する面振れが減る。
[Function] The weight increases the centrifugal force on the rotating floppy disk, so the disk is pulled uniformly outward with a strong force, reducing surface runout caused by forces from above and below.

〔実施例〕〔Example〕

本発明の実施例を図面を用いて説明する◇第1図(a)
 、 (6)は本発明フロッピーディスクの外見図であ
る。11のフロッピーディスクに、10のドーナッツ状
の重りが取りつけられている。この重りはやわらかなも
のであれば何でもよい。この場合はゴム状のものをドー
ナッツ状に切りとり、とりつけた0もちろん、樹脂類な
どでもよい。
Embodiments of the present invention will be explained using drawings ◇Figure 1 (a)
, (6) is an external view of the floppy disk of the present invention. Ten donut-shaped weights are attached to eleven floppy disks. This weight can be anything as long as it is soft. In this case, a rubber-like material is cut into a donut shape and attached. Of course, resins or the like may also be used.

このドーナッツ状のものは重りとしでっかうので重さが
大切である。重さの最適値は回転数と、フレキシブルデ
ィスクの直径などをパラメーターとしてもつ。重すぎる
と、重力の影響がでてきて、下に傾くし、軽すぎると、
取りつけた意味がなくなる。
This donut-shaped thing acts as a weight, so its weight is important. The optimum value for weight depends on parameters such as rotation speed and the diameter of the flexible disk. If it's too heavy, gravity will affect it and it will tilt downwards; if it's too light,
It loses its meaning.

第5図には、ドーナッツ状の重りをフロッピーディスク
に取りつける様子を示す。このように、重りは簡単にフ
ロッピーディスクにとりつく。
FIG. 5 shows how a donut-shaped weight is attached to a floppy disk. In this way, the weight easily attaches to the floppy disk.

第4図(d) 、 (&)は、重りを取りつけた他の例
である◎フロッピーディスクの両面に重りが取りついて
いる。
Figure 4(d) and (&) are other examples of weights attached. ◎Weights are attached to both sides of the floppy disk.

第5図(a) 、 (6)も、重りを取りつけた他の例
である。フロッピーディスクをはさむように重りがとり
ついている。
Figures 5(a) and 5(6) are also other examples in which weights are attached. There is a weight attached to it that holds a floppy disk in between.

参考:昭和61年度電子通信学会総合全国大会予講集1
−186  NTT電通研 安田、金子) 〔発明の効果〕 本発明フロッピーディスクは回転時、面ぶれをしにくい
Reference: 1986 IEICE Comprehensive National Conference Preliminary Lecture Collection 1
-186 NTT Dentsu Research Institute Yasuda, Kaneko) [Effects of the invention] The floppy disk of the present invention is less prone to wobbling when rotated.

【図面の簡単な説明】[Brief explanation of drawings]

第1図(a) 、 (6)は本発明フロッピーディスク
外見図0 第2図((1) 、 (6)は従来の7四ツピ一デイス
ク外見図O 第3図はフロッピーディスクに重りを取りつける様子を
示した図。 第4図(α) 、 (6) ハ本発明フロッピーディス
クの他例の図。 第5図(a) 、 (b)は本発明フロッピーディスク
の他例の図。 以  上 出願人 セイコーエプソン株式会社 代理人 弁理士最 上 務 他1名 第3図 第4図(a) 第4図(b)
Figures 1 (a) and (6) are external views of the floppy disk of the present invention; Figure 2 (1) and (6) are external views of a conventional 74-pin disk; A diagram showing how it is attached. Figures 4 (α) and (6) are diagrams of other examples of the floppy disk of the present invention. Figures 5 (a) and (b) are diagrams of other examples of the floppy disk of the present invention. Applicant: Seiko Epson Co., Ltd. Agent, Patent Attorney Tsutomu Mogami, and 1 other person Figure 3 Figure 4 (a) Figure 4 (b)

Claims (1)

【特許請求の範囲】[Claims] スピンドルモーターが円盤状のやわらかな磁気記録媒体
となるフロッピーディスクを回転させ、磁気ヘッドがフ
ロッピーディスクに接触しながら記録再生を行なう磁気
記録装置に使用するフロッピーディスクにおいて、最外
層部にドーナッツ上のやわらかい重り(10)をつけた
ことを特徴とするフロッピーディスク。
In floppy disks used in magnetic recording devices, in which a spindle motor rotates a floppy disk, which is a disk-shaped soft magnetic recording medium, and a magnetic head records and plays while in contact with the floppy disk, the outermost layer has a soft dough like a donut. A floppy disk characterized by having a weight (10) attached.
JP13418186A 1986-06-10 1986-06-10 Floppy disk Pending JPS62289982A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13418186A JPS62289982A (en) 1986-06-10 1986-06-10 Floppy disk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13418186A JPS62289982A (en) 1986-06-10 1986-06-10 Floppy disk

Publications (1)

Publication Number Publication Date
JPS62289982A true JPS62289982A (en) 1987-12-16

Family

ID=15122333

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13418186A Pending JPS62289982A (en) 1986-06-10 1986-06-10 Floppy disk

Country Status (1)

Country Link
JP (1) JPS62289982A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6876520B2 (en) 2001-12-13 2005-04-05 Fuji Photo Film Co., Ltd. Magnetic disk cartridge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6876520B2 (en) 2001-12-13 2005-04-05 Fuji Photo Film Co., Ltd. Magnetic disk cartridge

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