JPS6190311A - Magnetic head for floppy disk - Google Patents
Magnetic head for floppy diskInfo
- Publication number
- JPS6190311A JPS6190311A JP20936084A JP20936084A JPS6190311A JP S6190311 A JPS6190311 A JP S6190311A JP 20936084 A JP20936084 A JP 20936084A JP 20936084 A JP20936084 A JP 20936084A JP S6190311 A JPS6190311 A JP S6190311A
- Authority
- JP
- Japan
- Prior art keywords
- core
- spacer
- read
- write
- core body
- 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
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/265—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この祐明ねフロッピーディスク用の磁気ヘッドに関する
ものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) This invention relates to a magnetic head for a floppy disk.
（従来の技術）
従来よりフロッピーディスク用の磁気ヘッドとしている
いろの構造のものがあるが、その中でいわゆるバルクΦ
タイプのトンネル・イレーズ・ヘッドａ、リード・ライ
ト用のコア体とイレーズ用のコア体との間は、非磁性材
料で作られにスペーサを配置して構成されてい７Ｃ。(Prior art) There have been various structures used as magnetic heads for floppy disks, but among them, the so-called bulk Φ
A type of tunnel erase head 7C is constructed by placing a spacer made of a non-magnetic material between the read/write core body and the erase core body.
（発明が解決しようとする問題点）
このようなタイプの磁気ヘッドで６．リード・ライトギ
ャップとイレーズ・ギャップとの間隔が規定されている
にめ、スペーサの厚さも制約を受 。(Problems to be solved by the invention) With this type of magnetic head, 6. Since the distance between the read/write gap and the erase gap is specified, the thickness of the spacer is also subject to restrictions.
けて十分に厚くとることができない。そこで上記の従来
例のようにスペーサに非常性材料を用いるものでも、リ
ード・ライト用のコア体とイレーズ用のコア体との間で
磁気的に干渉するいわゆるクロストークを生じ、これが
問題となっていて。I can't get it thick enough. Therefore, even if the spacer is made of an emergency material like the conventional example above, so-called crosstalk, which is magnetic interference between the read/write core and the erase core, occurs, which poses a problem. Keep it up.
この発明は、いわゆるクロストークの心配なくスペーサ
を十分に薄くでき、製造が容易で、出気効粒の良い磁気
ヘッドを提供することにある。The object of the present invention is to provide a magnetic head in which the spacer can be made sufficiently thin without worrying about so-called crosstalk, is easy to manufacture, and has good air output efficiency.
（問題点ｔ−解決するπめの手段）
この発明は、リード嶋ライト用のコア体とイレーズ用の
コア体との間に配置されるスペーサが、リード・ライト
用のコア体の出来方向に沿う方向に透磁率が太きい出猟
異方性材料で作られているところにある。(Problem t - πth means for solving problem) In this invention, the spacer disposed between the read/write core body and the erase core body is arranged in the direction in which the read/write core body is formed. It is made of an anisotropic material with high magnetic permeability in the longitudinal direction.
（作用）
このような出猟異方性材料でスペーサが作られると、そ
れぞれのコア体が、他に対して山気的にシールドされて
いる効果を生じ、クロストークが低減する。このπめに
スペーサは、より薄いものにできる。このことはスベ２
−サを薄くできる分だけコア体を構成するＩコアの厚み
を厚くすることができ、製造を容易にするとともは、コ
ア体の磁気効率を艮ぐすることになる。(Function) When a spacer is made of such an anisotropic material, each core body has the effect of being shielded from the others, reducing crosstalk. This π spacer can be made thinner. This is sube2
- The thickness of the I-core constituting the core body can be increased to the extent that the I-core can be made thinner, which facilitates manufacturing and improves the magnetic efficiency of the core body.
（実施ｆｉｌ ）
図に示すようは、リード・ライト用のコア体１とイレー
ズ用のコア体２とにスペーサ６を間に挾んで配置しであ
る。両コア体１．２ｆｉＩコア１１゜２１とＬコア１２
、２２との後端部側面にバックパー１３．２３が接合
して形成されてかり、■コア１１とＬコア１２との対向
する先端部の間隙がリード・ライト−ギャップ１０であ
シ、エコア２１とＬコア２２との対向する先端部の間隙
がイレーズ−ギャップ２０である。Ｌコア１２にはリー
ド・ライト・コイル１４が巻回してあり、Ｌコア２２に
はイレーズ・コイル２４が巻回しである。(Implementation File) As shown in the figure, a core body 1 for reading/writing and a core body 2 for erasing are arranged with a spacer 6 interposed therebetween. Both core bodies 1.2fiI core 11゜21 and L core 12
, 22 are formed by joining back pars 13 and 23 to the side surfaces of their rear ends, and ■ the gap between the opposing tips of the core 11 and the L core 12 is a read/write gap 10; The gap between the opposing tips of the L core 21 and the L core 22 is the erase gap 20. A read/write coil 14 is wound around the L core 12, and an erase coil 24 is wound around the L core 22.
■コア１１とＩコア２１との間隙に介装しであるスペー
サ３は、単結晶フェライトなどの８気異方性材料で作ら
れているもので、リード・ライト・コイル１４によシコ
ア体１内に生じる出来方向に沿う方向に透磁率が大とな
るように構成しである。■The spacer 3 inserted in the gap between the core 11 and the I-core 21 is made of an anisotropic material such as single-crystal ferrite. The structure is such that the magnetic permeability increases in the direction along the direction of formation within the magnetic field.
このために一方のコア体から他方のコア体へスペーサ５
ｔ−横切る方向へは透磁率が小であるので。For this purpose a spacer 5 is inserted from one core body to the other.
t- Since the permeability is small in the transverse direction.
いわゆるクロストークに生じにぐぐ、スペーサ３の厚み
を極めて薄いものにすることが可能となる。It becomes possible to make the thickness of the spacer 3 extremely thin without causing so-called crosstalk.
し罠がってスペーサ３を薄くしπ分だけエコア１１．２
１’ｉ厚くできる。However, the spacer 3 is made thinner and the ecocore is 11.2 by π.
Can be made 1'i thicker.
（発明の効果）
このようにこの発明によれば、−気嚢方性材料で作られ
にスペーサを介在させるので、各コア体が他のコア体に
対して山気的にシールドされている効果を生じ、このπ
めにいわゆるクロストークを低減できる。また製造を容
易にでき、山気効率上向上できる。(Effects of the Invention) According to the present invention, as described above, since the core body is made of an air sac material and the spacer is interposed therebetween, each core body is effectively shielded from other core bodies. arise, this π
Therefore, so-called crosstalk can be reduced. In addition, it can be manufactured easily and the efficiency can be improved.
図面はこの発明の一実Ｍ例を示す斜睨図である。 １・・・リード・ライト用のコア体 ２・・・イレーズ用のコア体 ５・・・スペーサ 以上 The drawing is a perspective view showing an example M of the present invention. 1... Core body for read/write 2...Core body for erasing 5...Spacer that's all
Claims (1)
にスペーサが配置してあり。 上記スペーサは、リード・ライト用のコア体の磁束方向
に沿う方向に透磁率が大きい磁気異方性材料で作られて
いる ことを特徴とするフロッピーディスク用磁気ヘッド。[Claims] A spacer is arranged between a read/write core body and an erase core body. A magnetic head for a floppy disk, characterized in that the spacer is made of a magnetically anisotropic material having high magnetic permeability in the direction along the magnetic flux direction of the read/write core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20936084A JPS6190311A (en) | 1984-10-05 | 1984-10-05 | Magnetic head for floppy disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20936084A JPS6190311A (en) | 1984-10-05 | 1984-10-05 | Magnetic head for floppy disk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6190311A true JPS6190311A (en) | 1986-05-08 |
Family
ID=16571649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20936084A Pending JPS6190311A (en) | 1984-10-05 | 1984-10-05 | Magnetic head for floppy disk |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6190311A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01138606A (en) * | 1987-11-25 | 1989-05-31 | Matsushita Electric Ind Co Ltd | Magnetic head |
| EP0356031A2 (en) * | 1988-08-22 | 1990-02-28 | International Business Machines Corporation | A read-after-write magnetic head |
| EP0412261A2 (en) * | 1989-08-11 | 1991-02-13 | Pioneer Electronic Corporation | A magnetic head with two canted gaps and the manufacturing method thereof |
| US5144741A (en) * | 1989-08-11 | 1992-09-08 | Pioneer Electronic Corporation | Method of manufacturing a magnetic head with two canted gaps |
| US5450264A (en) * | 1990-02-16 | 1995-09-12 | Mitsubishi Denki Kabushiki Kaisha | Magnetic head |
-
1984
- 1984-10-05 JP JP20936084A patent/JPS6190311A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01138606A (en) * | 1987-11-25 | 1989-05-31 | Matsushita Electric Ind Co Ltd | Magnetic head |
| EP0356031A2 (en) * | 1988-08-22 | 1990-02-28 | International Business Machines Corporation | A read-after-write magnetic head |
| EP0356031A3 (en) * | 1988-08-22 | 1992-01-15 | International Business Machines Corporation | A read-after-write magnetic head |
| EP0412261A2 (en) * | 1989-08-11 | 1991-02-13 | Pioneer Electronic Corporation | A magnetic head with two canted gaps and the manufacturing method thereof |
| US5144741A (en) * | 1989-08-11 | 1992-09-08 | Pioneer Electronic Corporation | Method of manufacturing a magnetic head with two canted gaps |
| US5450264A (en) * | 1990-02-16 | 1995-09-12 | Mitsubishi Denki Kabushiki Kaisha | Magnetic head |
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