JPS6228910A - Magnetic head - Google Patents

Magnetic head

Info

Publication number
JPS6228910A
JPS6228910A JP16837585A JP16837585A JPS6228910A JP S6228910 A JPS6228910 A JP S6228910A JP 16837585 A JP16837585 A JP 16837585A JP 16837585 A JP16837585 A JP 16837585A JP S6228910 A JPS6228910 A JP S6228910A
Authority
JP
Japan
Prior art keywords
magnetic pole
magnetic
input
auxiliary
recording medium
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
JP16837585A
Other languages
Japanese (ja)
Inventor
Hiroyoshi Kou
太好 高
Ryoichi Konno
良一 今野
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.)
Ricoh Research Institute of General Electronics Co Ltd
Ricoh Co Ltd
Original Assignee
Ricoh Research Institute of General Electronics Co Ltd
Ricoh Co Ltd
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 Ricoh Research Institute of General Electronics Co Ltd, Ricoh Co Ltd filed Critical Ricoh Research Institute of General Electronics Co Ltd
Priority to JP16837585A priority Critical patent/JPS6228910A/en
Publication of JPS6228910A publication Critical patent/JPS6228910A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127Structure or manufacture of heads, e.g. inductive
    • G11B5/1278Structure 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)
  • Magnetic Heads (AREA)

Abstract

PURPOSE:To reduce electrostatic coupling, to increase magnetic coupling, and to improve the writing/reading efficiency of information by constituting an auxiliary magnetic pole in three-dimensional structure having plural projection parts, and using one projection part as a recording medium facing magnetic pole and the other projection part as an iron core for input/output winding. CONSTITUTION:A magnetic head consists of a main magnetic pole 1 and the auxiliary magnetic pole 2 and a the magnetic pole film 1A of the main magnetic pole 1 is sandwiched between magnetic film holding members 1B and 1C. The plural projection parts are formed on the magnetic pole 2A of the auxiliary magnetic pole 2 facing the main magnetic pole 1 across a recording medium 5 and those projection parts are used as iron cores 2B, 2C, and 2D for input/ output winding. Those iron cores 2B, 2C, and 2D are provided with input/output windings 3A, 3B, and 3C, whose tips are covered with cylindrical ferrite sleeves 4 to shield the respective magnetic pole parts. Thus, the electrostatic coupling of the magnetic head is reduced and the magnetic coupling is increased to improve the writing and reading efficiency of information.

Description

【発明の詳細な説明】 一技11分野一 本発明は、高密度記録用磁気ヘッド(以下、単にヘッド
という)に関するものである。
DETAILED DESCRIPTION OF THE INVENTION Technical Field: Eleven Fields: The present invention relates to a magnetic head for high-density recording (hereinafter simply referred to as a head).

−背−夙−技術− 垂直磁気記録力・式は、従来からの水平磁気記録方式に
比べて高密度記録における反磁界の影響が少なく安定し
た磁化が得られる記録方式として近年研究開発が盛んに
行われている。
-Background-Technology- The perpendicular magnetic recording force/formula has been actively researched and developed in recent years as a recording method that can obtain stable magnetization with less influence of demagnetizing fields in high-density recording than the conventional horizontal magnetic recording method. It is being done.

前記垂直磁気記録方式に使用されるヘッドにおいて、ト
ラック幅を狭くしても書込み磁界の垂直成分を大きくシ
そ高密度で垂直磁化記録を行うことができるよ゛うにす
るために、例えば、特公昭56−15042号公報に記
載されているように、鉄心の複数の先端部が垂直方向に
磁化容易極を有する磁気記録媒体面に対向して配置され
、1個の鉄心先端部から一方向磁場を高密度に作りつる
ように、その磁気記録媒体対向面を狭くし、複数の巻線
を前記鉄心に巻回し、他の鉄心先端部か起逆方向の磁場
を低密度で作りうるように、その磁気記録媒イ本対向−
を十分広くしているものがある。
In the head used in the perpendicular magnetic recording system, in order to increase the perpendicular component of the write magnetic field even if the track width is narrowed and to perform perpendicular magnetization recording at high density, for example, As described in Japanese Patent No. 56-15042, a plurality of tips of an iron core are disposed facing a magnetic recording medium surface having easy magnetization poles in the perpendicular direction, and a unidirectional magnetic field is applied from one tip of the iron core. The surface facing the magnetic recording medium is narrowed so as to create a high-density magnetic recording medium, and multiple windings are wound around the core so that a magnetic field in the reversal direction can be created at low density from the tip of the other core. Magnetic recording medium facing each other
There are some that are sufficiently wide.

また、情報書込み及び読出し効率を上げるために、例え
ば、特−昭52−24509号公報、実開昭57−14
9523号公報等に記載されるように、同一磁極に複数
の巻線を巻回したものがある。
In addition, in order to improve information writing and reading efficiency, for example, Japanese Patent Publication No. 52-24509,
As described in Japanese Patent No. 9523, etc., there is one in which a plurality of windings are wound around the same magnetic pole.

このような従来の同一磁極に複数の巻線を巻回した′磁
気ヘッドでは、同一磁極に巻線を施すと、各巻線間の分
布容量が発生し、巻線間の電気的結合を誘導性結合たけ
にすることができない。そのために電気的結合を疎にし
ようとしても容置性で結合してしまう。その結果として
再生特性の変化範囲が狭くなり、所望の再生特性を得る
ことができないという問題かあった。
In such a conventional magnetic head in which multiple windings are wound around the same magnetic pole, when the windings are wound around the same magnetic pole, distributed capacitance occurs between each winding, and the electrical coupling between the windings becomes inductive. Cannot be combined. Therefore, even if an attempt is made to make the electrical coupling loose, the coupling will occur due to capacitance. As a result, the range of change in reproduction characteristics becomes narrower, resulting in a problem that desired reproduction characteristics cannot be obtained.

目−的一 本発明の目的は、情報書込み及び読出し特性の変化範囲
を広くすることが可能なヘットを提供することにある。
OBJECT 1 An object of the present invention is to provide a head that can widen the range of change in information writing and reading characteristics.

本発明の他の目的は、磁極間の静電結合を小さくシ、磁
気結合のみを大きくして、情報書込み及び読出しの効率
を向」二させることが可能なヘットを提供することにあ
る。
Another object of the present invention is to provide a head that can improve the efficiency of information writing and reading by reducing the electrostatic coupling between magnetic poles and increasing only the magnetic coupling.

本発明の前記ならびにその他の目的と新規な特徴は、本
明細書の記述及び添付図面によって明らかになるであろ
う。
The above and other objects and novel features of the present invention will become apparent from the description of this specification and the accompanying drawings.

構成一 本発明は、前記の目的を達成させるため、4ミ磁極と補
助磁極を有する磁気ヘッドにおいて、前記補助磁極は複
数の突出部を有する三次元構造体を構成し、その一つの
突出部を記録媒体対向用磁極とし、その他の突出部を入
出力巻線用鉄心とし、該入出力巻線用鉄心に情報書込み
及び読出し用入出力巻線をそれぞれ巻回したことを特徴
とするものである。
Structure 1 In order to achieve the above object, the present invention provides a magnetic head having four magnetic poles and an auxiliary magnetic pole, in which the auxiliary magnetic pole constitutes a three-dimensional structure having a plurality of protrusions, and one of the protrusions is The magnetic pole is for facing the recording medium, the other protrusion is an input/output winding core, and information writing and reading input/output windings are wound around the input/output winding core. .

以−1へ本発明の構成について、本発明を、補助磁極励
磁型の磁気ヘッドを有する垂直磁気記録装置に適用した
一実施例とともに説明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Below-1, the structure of the present invention will be described together with an embodiment in which the present invention is applied to a perpendicular magnetic recording device having an auxiliary pole excitation type magnetic head.

なお、全回において、同一の機能を有するものは同一符
号を付け、その繰り返しの説明は省略する。
In addition, in all the episodes, parts having the same functions are given the same reference numerals, and repeated explanations will be omitted.

害施例 本発明の・実施例の垂直磁気記録用磁気ヘッドの概略構
成を第1図に示す。
Embodiment FIG. 1 shows a schematic configuration of a magnetic head for perpendicular magnetic recording according to an embodiment of the present invention.

第1図において、■は主磁極であり、磁極膜IAを磁極
膜保持部材IBとIcで挟持したものである。磁極膜I
Aは、例えば、Co−Crからなる簿膜で構成され、磁
極膜保持部材IB及びlCは、例えば、硬質ガラス、セ
ラミック等で構成されている。補助磁極2は、例えば、
Mn−Znフ−3= エライl−、Nj−Znフェライト等の円柱状の高透磁
率磁性体からなり、この円柱状の高透磁率磁性体を複数
の突出部を有する構造体に構成し、その一つの突出部を
記録媒体に対向する磁極2Aとし、その他の突出部を入
出力巻線用鉄心2 B + 2 C。
In FIG. 1, ``■'' is the main magnetic pole, and the magnetic pole film IA is held between the magnetic pole film holding members IB and Ic. Magnetic pole film I
A is made of, for example, a film made of Co--Cr, and the magnetic pole film holding members IB and 1C are made of, for example, hard glass, ceramic, or the like. The auxiliary magnetic pole 2 is, for example,
Mn-Zn F-3 = consisting of a cylindrical high magnetic permeability magnetic material such as Elai l-, Nj-Zn ferrite, and configuring this cylindrical high permeability magnetic material into a structure having a plurality of protrusions, One of the protrusions is a magnetic pole 2A facing the recording medium, and the other protrusions are input/output winding iron cores 2B+2C.

2Dとしたものである。そして、入出力巻線用鉄心2 
B y 2 C+ 2 r)には、情報書込み及び読出
し用入出力巻線3A、3B、3Cがそれぞれ巻回されて
いる。これらの入出力巻線3A、3B、3Cが巻回され
た入出力巻線用鉄心2B+ 2CI 2F)に、必要に
応じて円筒型のフェライト製スリーブ4を被せるように
なっている。これにより各磁極間をシールドするととも
にQ値を」二げることかできる。
It is 2D. And iron core 2 for input/output winding
Input/output windings 3A, 3B, and 3C for information writing and reading are wound around B y 2 C+ 2 r), respectively. If necessary, a cylindrical ferrite sleeve 4 is placed over the input/output winding iron core 2B+2CI 2F) around which the input/output windings 3A, 3B, and 3C are wound. This makes it possible to shield between each magnetic pole and to increase the Q value.

記録媒体5は、例えば、フィルム状のポリエチレンテレ
フタレートからなる基板の];に、Ni−Feからなる
高透磁率層とCo−Crからなる垂直磁化層を積層して
構成されている。
The recording medium 5 is constructed by laminating, for example, a high magnetic permeability layer made of Ni--Fe and a perpendicular magnetization layer made of Co--Cr on a substrate made of polyethylene terephthalate in the form of a film.

前記のように補助磁極を構成することにより、それぞれ
の入出力巻線用鉄心2B+ 2 C”、 、 2 F)
からなる磁極間の静電容量を小さくすることかできる。
By configuring the auxiliary magnetic poles as described above, each input/output winding iron core 2B+2C", 2F)
The capacitance between the magnetic poles can be reduced.

また、前記入出力巻線用鉄心2B、2C,2D相互の角
度、径、距離を変更することにより、磁極間の静電容量
及び磁気特性を任意に調整することが可能であり、設計
の自由度を増すことができる。また、入出力巻線用鉄心
2B、2G、2Dのそれぞれをさらに木の枝状に分岐す
ることにより、さらに細かい調整を行うことも可能であ
る。
In addition, by changing the angle, diameter, and distance between the input and output winding cores 2B, 2C, and 2D, it is possible to arbitrarily adjust the capacitance and magnetic characteristics between the magnetic poles, allowing for freedom in design. You can increase the degree. Further, by further branching each of the input/output winding cores 2B, 2G, and 2D into tree branch shapes, it is also possible to perform even more fine adjustment.

幼米− 以−1−説明したように、本発明によれば、補助磁極を
複数の突出部を有する二次元構造体に構成し、その一つ
の突出部を記録媒体対向用磁極とし、その他の突出部を
入出力巻線用鉄心とし、これらの入出力巻線用鉄心に情
報書込み及び読出し用人出力巻線をそれぞれ巻回する構
造としたことにより、補助用磁極相互の角度、径、距離
を変更することができるので、入出力巻線用鉄心間の静
電容量及び磁気特性を、任意に調整することが可能であ
り、設計の自由度を増すことができる。
Young Rice - Part 1 - As explained above, according to the present invention, the auxiliary magnetic pole is formed into a two-dimensional structure having a plurality of protrusions, one of the protrusions is used as the recording medium facing magnetic pole, and the other By using the protrusion as the input/output winding core, and winding the information writing and reading personal output windings around the input/output winding core, the angle, diameter, and distance between the auxiliary magnetic poles can be adjusted. Since it can be changed, the capacitance and magnetic characteristics between the input and output winding cores can be adjusted as desired, and the degree of freedom in design can be increased.

これにより、静電結合を小さくし、磁気結合のみを大き
くして、情報書込み及び読出しの効率を向上させた磁気
ヘッドを提供することができる。
Thereby, it is possible to provide a magnetic head that improves the efficiency of information writing and reading by reducing electrostatic coupling and increasing only magnetic coupling.

なお、本発明は、前記実施例に限定されるものではなく
、その要旨を逸脱しない範囲において種々変更可能であ
ることはいうまでもない。
It goes without saying that the present invention is not limited to the embodiments described above, and can be modified in various ways without departing from the spirit thereof.

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

第1図は、本発明の一実施例の垂直磁気記録用磁気ヘッ
ドの概略構成を模写図である。 図中、l・・主磁極、IA・・・磁極膜、IB、Ic・
・・磁極膜保持部材、2・・・補助磁極、2A・・・磁
極、2B、2C,2D・・入出力巻線用鉄心、3A、3
B、3C・・・入出力巻線、4・・・円筒状のフェライ
ト製スリーブ、5・・・記録媒体である。
FIG. 1 is a schematic diagram of the configuration of a magnetic head for perpendicular magnetic recording according to an embodiment of the present invention. In the figure, l...main magnetic pole, IA... magnetic pole film, IB, Ic...
... Magnetic pole film holding member, 2... Auxiliary magnetic pole, 2A... Magnetic pole, 2B, 2C, 2D... Iron core for input/output winding, 3A, 3
B, 3C: input/output winding, 4: cylindrical ferrite sleeve, 5: recording medium.

Claims (1)

【特許請求の範囲】[Claims] (1)主磁極と補助磁極を有する磁気ヘッドにおいて、
前記補助磁極を複数の突出部を有する三次元構造体に構
成し、その一つの突出部を記録媒体対向用磁極とし、そ
の他の突出部を入出力巻線用鉄心とし、これらの入出力
巻線用鉄心に情報書込み及び読出し用入出力巻線をそれ
ぞれ巻回したことを特徴とする磁気ヘッド。
(1) In a magnetic head having a main magnetic pole and an auxiliary magnetic pole,
The auxiliary magnetic pole is formed into a three-dimensional structure having a plurality of protrusions, one of the protrusions serves as a recording medium facing magnetic pole, the other protrusions serve as an iron core for input/output windings, and these input/output windings A magnetic head characterized in that an input/output winding for information writing and reading is wound around a magnetic core.
JP16837585A 1985-07-30 1985-07-30 Magnetic head Pending JPS6228910A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16837585A JPS6228910A (en) 1985-07-30 1985-07-30 Magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16837585A JPS6228910A (en) 1985-07-30 1985-07-30 Magnetic head

Publications (1)

Publication Number Publication Date
JPS6228910A true JPS6228910A (en) 1987-02-06

Family

ID=15866930

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16837585A Pending JPS6228910A (en) 1985-07-30 1985-07-30 Magnetic head

Country Status (1)

Country Link
JP (1) JPS6228910A (en)

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