JPS58199424A - Floppy disk type vertical magnetic recording and reproducing head - Google Patents
Floppy disk type vertical magnetic recording and reproducing headInfo
- Publication number
- JPS58199424A JPS58199424A JP8346882A JP8346882A JPS58199424A JP S58199424 A JPS58199424 A JP S58199424A JP 8346882 A JP8346882 A JP 8346882A JP 8346882 A JP8346882 A JP 8346882A JP S58199424 A JPS58199424 A JP S58199424A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- slider
- magnetic pole
- auxiliary
- main
- 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
- 239000000696 magnetic material Substances 0.000 abstract description 8
- 229910000889 permalloy Inorganic materials 0.000 abstract description 5
- 229910000859 α-Fe Inorganic materials 0.000 abstract description 5
- 230000035699 permeability Effects 0.000 abstract description 3
- 238000004544 sputter deposition Methods 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 abstract 2
- 238000010168 coupling process Methods 0.000 abstract 2
- 238000005859 coupling reaction Methods 0.000 abstract 2
- 230000009977 dual effect Effects 0.000 abstract 1
- 230000004907 flux Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 229930091051 Arenine Natural products 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
- Magnetic Heads (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は媒体を両面よル挾んで動作するフロッピィディ
スク型の垂直磁気記録再生ヘレドの構造に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of a floppy disk-type perpendicular magnetic recording/reproducing device which operates by sandwiching a medium on both sides.
垂直磁気記録再生ヘッドはフレキシブルディスク媒体を
表裏両面よシヘッドで挾んで動作させる方式の研究が進
められている０これは、従来の水平記録あフロッピィデ
ィスクヘッドｉ改良したものであり、第１図および第２
図に示すような構造を着している。ナなもち、このフロ
ッピィディスクヘッドはパーマロイなどの高透磁率ｉ性
体の薄い主磁極ｌをスパッタなどで↓喪ミック片２に形
成しアセンブリ゛し泥上方メ２イダ３と、前記１磁
。Research is underway on a system in which a perpendicular magnetic recording/reproducing head operates by sandwiching a flexible disk medium between the front and back sides of the head. This is an improved version of the conventional horizontal recording floppy disk head, as shown in Figures 1 and 2. Second
It has the structure shown in the figure. However, this floppy disk head is made by forming a thin main magnetic pole l made of a high magnetic permeability material such as permalloy on the magnetic piece 2 by sputtering, etc.
.
極１に比べｉるかに厚いフェライトなどの磁性体で作っ
た補助磁極４を具備した下方スライダ５とで、ｉ電磁気
異方性を有ｊるフレキシブル媒体６を挾む構造とならて
いる。It has a structure in which a flexible medium 6 having electromagnetic anisotropy is sandwiched between a lower slider 5 having an auxiliary magnetic pole 4 made of a magnetic material such as ferrite which is much thicker than the pole 1.
□このヘッドは上方哀ライダめ表面に無比した主磁極ｌ
と、下方スライダの表面に算出した補助磁極４とを対向
させ、補助磁極４に巻かれたコイル７に′より磁束の励
起あるいは、磁束の読み出しを ′行ない媒体面に対
して垂直方向に記録あるいは再生作用を行うもので、磁
束の流れは第２図に示す破線で示される。第２図におい
て、主磁極１および補助磁極４を流れた磁束は、自由空
間を伝って閉磁路を形成するがこの方式の欠点としては
、磁性体による完全な閉磁−構造ではないため、磁気回
路の磁気抵抗が大きく、記録時には大きな起磁力を要し
、また再生時には′媒体からの磁束がコイル７と鎖交す
る率、いわゆる再生効率が悪いためにＳ／Ｎが低下し、
エラーレイトが悪くなっていた。それでも、特開昭５４
−５１８１０のように二層膜媒体を使用することによシ
、等測的に補助磁極を主磁極に接近させると、記録およ
び再生効率は向上するが、前記媒体の生産の安定性が悪
くまた高価格となるなど問題があっ九。□This head has an unparalleled main magnetic pole on the upper surface of the rider.
The calculated auxiliary magnetic pole 4 is placed on the surface of the lower slider, and the coil 7 wound around the auxiliary magnetic pole 4 is used to excite the magnetic flux or read out the magnetic flux, thereby recording or reading data perpendicularly to the medium surface. It performs a regenerative action, and the flow of magnetic flux is shown by the broken line in FIG. In Figure 2, the magnetic flux flowing through the main magnetic pole 1 and the auxiliary magnetic pole 4 travels through free space to form a closed magnetic path. However, the disadvantage of this method is that it does not have a completely closed magnetic structure made of magnetic material, so the magnetic circuit The magnetic resistance is large, and a large magnetomotive force is required during recording, and during reproduction, the rate at which the magnetic flux from the medium interlinks with the coil 7, so-called reproduction efficiency, is poor, resulting in a decrease in S/N.
The error rate was getting worse. Still, JP-A-54
By using a double-layered film medium such as 51810, the recording and reproducing efficiency is improved by isometrically placing the auxiliary magnetic pole closer to the main magnetic pole, but the production stability of said medium is poor and There are nine problems, including high prices.
本発明は、磁性体で磁気的な閉磁路を形成することによ
シ、上記欠点を解決し、記録および再生効率の良好な垂
直磁気記録再生ヘッドを提供することにある。An object of the present invention is to solve the above-mentioned drawbacks by forming a closed magnetic path using a magnetic material, and to provide a perpendicular magnetic recording/reproducing head with good recording and reproducing efficiency.
・本発明によればフレキシブル媒体と対向し接触する双
胴型スライダーの一方のスライダー表面に主磁極を具備
し、同一スライダー表面内あるいは他方のスライダー表
面内に前記主磁極のスライダー表面の露出面積よシも十
分大きな露出面積を有する第１の補助磁極を具備し、か
つ前記両磁極を磁気的に結合した上方スライダーと、前
記媒体をはさんで反対側に前記上方スライダーのそれぞ
れの磁極の算出部分と対向する位置に、前記主磁極のス
ライダー表面の露出面積よ勺も十分大きな露出面積を有
する第２および第３の補助磁極をそれぞれ配置し両磁極
が磁気的に結合し巻線が施、された双胴型の下方スライ
ダーとを有することにより構成される垂直磁気記録再生
ヘッドが得られる。-According to the present invention, a main magnetic pole is provided on one slider surface of a double-barreled slider that faces and contacts the flexible medium, and the exposed area of the slider surface of the main magnetic pole is provided within the same slider surface or within the other slider surface. The upper slider also includes a first auxiliary magnetic pole having a sufficiently large exposed area and magnetically couples both of the magnetic poles, and a calculated portion of each magnetic pole of the upper slider on the opposite side with the medium in between. Second and third auxiliary magnetic poles each having an exposed area sufficiently larger than the exposed area of the slider surface of the main magnetic pole are arranged at positions facing the main magnetic pole, and both magnetic poles are magnetically coupled and winding is applied. A perpendicular magnetic recording/reproducing head having a double-barrel type lower slider is obtained.
本発明は主磁極と補助磁極とを磁気的に閉回路構造とす
ることにより、磁気回路の磁気抵抗を小さくシ、記録お
よび再生効率を向上させる作用を行う。The present invention has the effect of reducing the magnetic resistance of the magnetic circuit and improving recording and reproducing efficiency by forming the main magnetic pole and the auxiliary magnetic pole into a magnetically closed circuit structure.
次に、本発明の実施例について図面を参照して説明する
。Next, embodiments of the present invention will be described with reference to the drawings.
第３図は本発明の一実施例を示す。第３図において、本
実施例は双胴型の上方スライダー１３にパーマロイなど
の高透磁率磁性体をスパッタなどで形成した主磁極１１
と、フェライトなどの磁性体で作られた第１の補助磁極
１８とを磁気的に結合したコの字型の上方コアを具備し
、両磁極をそれぞれスライダー表面に露出させたもので
ある。FIG. 3 shows an embodiment of the invention. In FIG. 3, this embodiment has a main magnetic pole 11 formed by sputtering a high permeability magnetic material such as permalloy on a twin-barrel type upper slider 13.
and a first auxiliary magnetic pole 18 made of a magnetic material such as ferrite are magnetically coupled to each other in a U-shaped upper core, and both magnetic poles are exposed on the surface of the slider.
ここでは、主磁極１１を保持するためセラミック片１２
を使用している。Here, a ceramic piece 12 is used to hold the main magnetic pole 11.
are using.
双胴型の下方スライダー１５、はフェライトなどで作っ
た第２．第３の補助磁極を磁気的に結合し九コの字型の
下方コア１４を具備し、５両補助磁極をそれぞれスライ
ダー表面に無比させ、前記上方スライダーの各磁極と、
媒体６を挾んで、対向させたものである。The twin-barrel type lower slider 15 has a second slider made of ferrite or the like. A third auxiliary magnetic pole is magnetically coupled to a nine U-shaped lower core 14, and each of the five auxiliary magnetic poles is disposed on the slider surface, and each magnetic pole of the upper slider,
The media 6 is sandwiched between the media 6 and the media 6 are placed facing each other.
第４図は、第３図のＹ−Ｙ断面を示し、磁束の流れを破
線で示したもので、下方コア１４に巻かれたコイク１７
に電流を流すと、破線で示すよう５−
に磁束が流れ、スライダー表面の露出面積のｌトさな主
磁極１１に磁束が集中し媒体への磁化が行なわれる。こ
の時、上方コアと下方コアとで磁性体による閉磁路は、
従来と比較して、磁束が自由空間を伝わる距離が少なく
なるように形成され磁気回路の磁気抵抗が小さくなる。FIG. 4 shows the Y-Y cross section of FIG. 3, and the flow of magnetic flux is shown by broken lines.
When a current is applied to the main magnetic pole 11, which has a small exposed area on the slider surface, the magnetic flux flows in the direction indicated by the broken line, and the medium is magnetized. At this time, the closed magnetic path created by the magnetic material between the upper core and the lower core is
Compared to the conventional method, the magnetic flux is formed so that the distance traveled through free space is reduced, and the magnetic resistance of the magnetic circuit is reduced.
したがって本実施例は記録時には小さな起磁力で記録が
可能となシ、記録効率が向上し、再生時には同様に磁束
の流れが容易となるため再′生効轡が向上してＳ／Ｎを
良くすることができる。 、第５
図は、本発明の他の実施例、で第３図の実施、例とは異
なシ、双胴型の上方スライダー２３および下方スライダ
ー２５の片方のスライダー表面に主磁極２１および補助
磁極２８．２４をそれぞれ露出させたものである。Therefore, in this embodiment, recording can be performed with a small magnetomotive force during recording, and the recording efficiency is improved, and during reproduction, the flow of magnetic flux is similarly facilitated, so the reproduction efficiency is improved and the S/N is improved. can do. , 5th
The figure shows another embodiment of the present invention, which is different from the implementation and example shown in FIG. are exposed respectively.
第６図は、第５図のＺ−２断面を示す。磁束の流れは磁
性体Ω閉磁路を破線で示すように流れるため磁気回路の
磁気哲抗が小さくなり、記録および再生効率を向上させ
ることができる。FIG. 6 shows a Z-2 cross section in FIG. 5. Since the magnetic flux flows through the magnetic Ω closed magnetic path as shown by the broken line, the magnetic resistance of the magnetic circuit is reduced, and recording and reproducing efficiency can be improved.
また、本発明の実施例においては７レキシプル６−
媒体面に、たとえばＣ，−Ｃｒ の垂直異方性膜の下
層にパーマロイを形成したような、いわゆる二層膜媒体
を使用すれば、記録効率がさらに向上する。In addition, in the embodiment of the present invention, if a so-called two-layer film medium, such as a permalloy film formed under a perpendicularly anisotropic film of C, -Cr, is used on the medium surface, recording efficiency can be improved. further improves.
この場合、再生用コイルは、主磁極を有する上方コアに
巻く方が媒体のパーマロイ層を閉磁路に利用できるため
、再生効率がさらに向上する。In this case, if the reproducing coil is wound around the upper core having the main magnetic pole, the permalloy layer of the medium can be used as a closed magnetic path, so that the reproducing efficiency is further improved.
また、本発明の更に他の実施例としては第７図のように
、コの字型の上方コア３８および下方コア３４をそれぞ
れ二つ具備させ、Ｃ０−Ｃｒ膜９１とパーマロイ膜９２
とをペース材９３の表裏にそれぞれ形成した両面二層膜
媒体９を用いれば、両面の記録が行なわれることがわか
る。二つの主磁極部３１．３１’は第８図（第７図のＡ
−Ａ断面）に示されるように並べられたｉ合、磁束の流
れは破線のように示される。この構造で稈再生を、効率
よく行うために再生コイル３７を主磁極を有するコア３
８．３８’側に巻けば良い。Further, as a further embodiment of the present invention, as shown in FIG.
It can be seen that by using the double-sided double-layer film medium 9 in which the paste material 93 is formed on the front and back sides of the paste material 93, recording can be performed on both sides. The two main magnetic pole parts 31 and 31' are shown in Fig. 8 (A in Fig. 7).
-A cross section), the flow of magnetic flux is shown as a broken line. In order to perform culm regeneration efficiently with this structure, the regeneration coil 37 is connected to the core 3 having the main magnetic pole.
8. Just wrap it to the 38' side.
本発明は以上説明したようにＪ磁性体で閉磁路を形成す
ることにより、記録および再生効率の良好な垂直記録再
生ができ、また、両面二層膜媒体にも応用できる効果が
ある。As explained above, the present invention enables perpendicular recording and reproduction with good recording and reproduction efficiency by forming a closed magnetic path using J magnetic material, and has the effect that it can also be applied to double-sided double-layer film media.
第１図および第２図は従来の磁気ヘッドの全体および磁
束の流れを示す図、第３図、第４図および第７図は本発
明の実施例である各磁気ヘッドを示す図、第４図、第６
図および第８図は各実施例の磁気ヘッドにおける磁束の
流λを示す図である。
１．１１，２１，３１，３１’・・・・・・主磁極、４
，１４．２４．３４．３４’、１８．２８，３８．３８
’・・・・・補助磁極、２゜１２・・・・・・セラミッ
ク片、３，１３，２３．３３ ・・・・・・上方スラ
イダー、５，１５，２５．３５ ・・・・・・下方ス
ライダー、６・・・・・・媒体、’７；’１７，２７，
３７．３７’・・・・・・コイル、９・・・・・・二層
膜媒体、９１・・・・・・Ｃ，−Ｃｒ膜、第１図
第４閉
第５１￥１
＄６ｒｎ1 and 2 are diagrams showing the entire conventional magnetic head and the flow of magnetic flux; FIGS. 3, 4, and 7 are diagrams showing each magnetic head according to an embodiment of the present invention; Figure, 6th
8 and 8 are diagrams showing the magnetic flux flow λ in the magnetic head of each embodiment. 1.11, 21, 31, 31'... Main magnetic pole, 4
, 14.24.34.34', 18.28, 38.38
'...Auxiliary magnetic pole, 2゜12...Ceramic piece, 3,13,23.33...Upper slider, 5,15,25.35... Downward slider, 6...Medium, '7;'17,27,
37.37'... Coil, 9... Double layer film medium, 91... C, -Cr film, Figure 1, 4th closed, 51 yen 1 $6rn
Claims (1)
一方のスライダー表面に主磁極を具備し、同一スライダ
ー表面内あるいは他方めスライダー表面内に、前記主磁
極め゛スライダー表面の露出面積よシも十分大きな算出
面積を有する第１の補助磁極を具備し、かつ前記゛両磁
極を磁気的に結合した上方スライダーと、前記媒体をは
さんで反対側に前記上方スライダーのそれぞれの磁極め
露出部分と対向する位置に、前記主磁極のスライダー表
面の露出面積よりも十分大きな露出面積を有する第２お
よび第３゛の補助磁極をそ五ぞれ配置し両磁極を磁気的
に結合し巻線が施された双胴型の下方スライダーとを有
するフロッピィディスク型の垂直磁気記録再生ヘッド。A main magnetic pole is provided on one slider surface of a double-barreled slider that faces and contacts the flexible medium, and the exposed area of the main magnetic pole and the slider surface is sufficiently large within the same slider surface or within the other slider surface. an upper slider having a first auxiliary magnetic pole having a calculated area, and facing the exposed portion of each magnetic pole of the upper slider on the opposite side with the medium in between; Five second and third auxiliary magnetic poles each having an exposed area sufficiently larger than the exposed area of the slider surface of the main magnetic pole are arranged at the positions, and the two magnetic poles are magnetically coupled and wound. A floppy disk type perpendicular magnetic recording/reproducing head having a twin body type lower slider.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8346882A JPS58199424A (en) | 1982-05-18 | 1982-05-18 | Floppy disk type vertical magnetic recording and reproducing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8346882A JPS58199424A (en) | 1982-05-18 | 1982-05-18 | Floppy disk type vertical magnetic recording and reproducing head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58199424A true JPS58199424A (en) | 1983-11-19 |
Family
ID=13803297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8346882A Pending JPS58199424A (en) | 1982-05-18 | 1982-05-18 | Floppy disk type vertical magnetic recording and reproducing head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58199424A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62200517A (en) * | 1986-02-27 | 1987-09-04 | Alps Electric Co Ltd | Vertical magnetic recording magnetic head and its manufacture |
-
1982
- 1982-05-18 JP JP8346882A patent/JPS58199424A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62200517A (en) * | 1986-02-27 | 1987-09-04 | Alps Electric Co Ltd | Vertical magnetic recording magnetic head and its manufacture |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4575777A (en) | Magnetic recording and reproducing head | |
| JP3200060B2 (en) | Thin film magnetic head | |
| JPH0291806A (en) | Vertically magnetized thin-film head | |
| JPH028365B2 (en) | ||
| JP3368247B2 (en) | Thin-film single-pole magnetic recording head | |
| JPH05274627A (en) | Magnetoresistive thin film magnetic head | |
| JPS58199424A (en) | Floppy disk type vertical magnetic recording and reproducing head | |
| KR20030076179A (en) | Magnetic head for recording and magnetic memory apparatus | |
| JPS60256907A (en) | Thin film magnetic head | |
| JP2788403B2 (en) | Magnetoresistive head | |
| JPH0298803A (en) | Magnetic head | |
| JPH04119509A (en) | Horizontal type perpendicular magnetic head | |
| JPS5826312A (en) | Multitrack magnetic recording head for vertical magnetization | |
| JPH07244822A (en) | Magnetoresistive magnetic head | |
| JPS61151819A (en) | Thin film magnetic head | |
| JP2982841B2 (en) | Composite type thin film magnetic head | |
| JPS6323769Y2 (en) | ||
| JP3129765B2 (en) | Thin film magnetic head | |
| JP2979966B2 (en) | Magnetic head | |
| JPS626421A (en) | Thin film magnetic head | |
| JPS6367250B2 (en) | ||
| JPS59221801A (en) | Perpendicular magnetic recording method | |
| JPS5853013A (en) | Main magnetic pole for magnetic head for vertical magnetizing recording | |
| JPS6059516A (en) | Composite head for vertical magnetic recording and reproducing | |
| JPH04119506A (en) | Thin film magnetic head |