JPH0536224A - Floating type magnetic head - Google Patents
Floating type magnetic headInfo
- Publication number
- JPH0536224A JPH0536224A JP21043291A JP21043291A JPH0536224A JP H0536224 A JPH0536224 A JP H0536224A JP 21043291 A JP21043291 A JP 21043291A JP 21043291 A JP21043291 A JP 21043291A JP H0536224 A JPH0536224 A JP H0536224A
- Authority
- JP
- Japan
- Prior art keywords
- shaped core
- slider
- magnetic head
- gimbal
- floating magnetic
- 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
Landscapes
- Supporting Of Heads In Record-Carrier Devices (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は固定磁気ディスク装置用
の浮動型磁気ヘッドに関し、特にＣ型コアの変形を防止
する構成に係る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floating magnetic head for a fixed magnetic disk drive, and more particularly to a structure for preventing deformation of a C-shaped core.
【０００２】[0002]
【従来の技術】最近、固定磁気ディスク装置は、小型・
薄型化してきた。それに伴い浮動型磁気ヘッドも薄型化
の傾向が顕著である。従来の固定磁気ディスク装置用の
浮動型磁気ヘッドは、磁気ディスクの回転によって発生
する空気流による揚力により浮上し、磁気ディスクに対
抗して近接する位置に配置される。2. Description of the Related Art Recently, fixed magnetic disk devices are
It has become thinner. Along with this, the tendency of thinning of the floating magnetic head is remarkable. 2. Description of the Related Art A conventional floating magnetic head for a fixed magnetic disk device is levitated by a lift force of an airflow generated by the rotation of a magnetic disk and is arranged at a position close to and opposite to the magnetic disk.
【０００３】図３は従来の固定磁気ディスク装置用の浮
動型磁気ヘッドの側面図、図４は図３の浮動型磁気ヘッ
ドの一部の斜視図である。両図において、１はＣ型コ
ア、２はＩ型コア、３は両コア１，２の接合用ガラス、
４はスライダ、５はＣ型コア１に巻回されたリード・ラ
イト用のコイル線、６はジンバル、７はロードアーム、
８は絶縁チューブ固定爪、９は絶縁チューブ、10は樹
脂、11は浮動型磁気ヘッドギャップ、12は磁気記録媒
体、13はロードポイント、14は浮動型磁気ヘッド重心、
15はスライダ面、Ｆは空気流、Ｍはジンバル６に加わる
曲げモーメントである。FIG. 3 is a side view of a conventional floating magnetic head for a fixed magnetic disk device, and FIG. 4 is a perspective view of a part of the floating magnetic head of FIG. In both figures, 1 is a C-shaped core, 2 is an I-shaped core, 3 is a glass for bonding both cores 1 and 2,
Reference numeral 4 is a slider, 5 is a read / write coil wire wound around the C-shaped core 1, 6 is a gimbal, 7 is a load arm,
8 is an insulating tube fixing claw, 9 is an insulating tube, 10 is resin, 11 is a floating magnetic head gap, 12 is a magnetic recording medium, 13 is a load point, 14 is a floating magnetic head center of gravity,
Reference numeral 15 is a slider surface, F is an air flow, and M is a bending moment applied to the gimbal 6.
【０００４】図５はＩ型コア２の斜視図であり、ここで
は、インライン・タイプの浮動型磁気ヘッドにつき説明
する。図３に示す空気流Ｆの流れ方向(矢印)、つまり浮
動型磁気ヘッドの長手方向に図４に示すようにロードア
ーム７が取り付けられる。また、図３に示すようにＩ型
コア２の上面に基準面２sと、リード・ライト用のコイ
ル線５を巻線したＣ型コア１の上面の基準面１sとを同
一平面上に正確に配置し、接合用ガラス３によって接着
固定されてスライダ４が形成される。浮動型磁気ヘッド
ギャップ部11は、下面のスライダ面15においてＣ型コア
１の磁極の先端とＩ型コア２の磁極の角端との間で形成
される。FIG. 5 is a perspective view of the I-shaped core 2. Here, an in-line type floating magnetic head will be described. A load arm 7 is attached as shown in FIG. 4 in the flow direction (arrow) of the air flow F shown in FIG. 3, that is, in the longitudinal direction of the floating magnetic head. In addition, as shown in FIG. 3, the reference surface 2s on the upper surface of the I-shaped core 2 and the reference surface 1s on the upper surface of the C-shaped core 1 on which the read / write coil wire 5 is wound are exactly on the same plane. The slider 4 is formed by arranging and adhering and fixing it by the bonding glass 3. The floating magnetic head gap portion 11 is formed on the lower slider surface 15 between the tip of the magnetic pole of the C-shaped core 1 and the corner end of the magnetic pole of the I-shaped core 2.
【０００５】ロードアーム７は、その先端に取付けられ
たジンバル６により、Ｃ型コア１の上面の基準面１s
と、Ｉ型コア２の上面の基準面２sの両方に跨かって、
通常、熱硬化型エポシキ樹脂等の樹脂10を介在させてス
ライダ４に接着、固定される。The load arm 7 has a reference surface 1s on the upper surface of the C-shaped core 1 by means of a gimbal 6 attached to its tip.
And across the reference surface 2s on the upper surface of the I-shaped core 2,
Usually, it is adhered and fixed to the slider 4 with a resin 10 such as a thermosetting epoxy resin interposed.
【０００６】また図４に示すように前記ロードアーム７
の一部には切り起こし加工により爪８が形成され、この
爪８により絶縁チューブ９を固定し、該絶縁チューブ９
の中の接続線によりリード・ライト用のコイル線５が固
定される。Further, as shown in FIG.
A claw 8 is formed on a part of the claw by cutting and raising, and an insulating tube 9 is fixed by the claw 8.
The coil wire 5 for reading and writing is fixed by the connecting wire inside.
【０００７】また、図３に示すようにＩ型コア２の下面
のスライダ面15と固定磁気ディスク装置の磁気記録媒体
面12の間の回転によって発生する空気流Ｆによる揚力に
よりスライダ４は浮上する。浮動型磁気ヘッドの揚力
は、Ｉ型コア２の右端の空気流入端よりＬの距離にある
ロードポイント13によりロードアーム７に伝達され、前
記スライダ４，リード・ライト用のコイル線５，その他
の付属品よりなるサスペンションの荷重と釣り合い、そ
の浮上姿勢はロードアーム７に取り付けた前記ジンバル
６によって保持される。Further, as shown in FIG. 3, the slider 4 is levitated by the lift force by the air flow F generated by the rotation between the slider surface 15 on the lower surface of the I-shaped core 2 and the magnetic recording medium surface 12 of the fixed magnetic disk device. .. The lift force of the floating magnetic head is transmitted to the load arm 7 by a load point 13 located at a distance L from the air inflow end at the right end of the I-shaped core 2, and the slider 4, the read / write coil wire 5, and other The gimbal 6 mounted on the load arm 7 holds the floating posture of the suspension, which balances with the load of the accessory.
【０００８】なお、浮動型磁気ヘッドギャップ部11は、
磁気記録媒体12の面に近接する程、高い記録密度と大き
な出力を得るため、通常スライダ面15と対抗する磁気記
録媒体12の面との最小隙間隔ならびに位置は、スライダ
面15の形状，荷重，および荷重の作用点ロードポイント
13の位置に依って決定される。The floating magnetic head gap portion 11 is
The closer to the surface of the magnetic recording medium 12, the higher the recording density and the larger the output, so that the minimum gap distance and the position between the surface of the magnetic recording medium 12 and the surface of the magnetic recording medium 12 that normally opposes the slider surface 15 are , And load action point load point
Determined by 13 positions.
【０００９】[0009]
【発明が解決しようとする課題】上述したスライダ４の
Ｃ型コア１の上にもジンバル６が位置するＨＧＡ(ヘッ
ドジンバル・アッセイ)に於いて、樹脂10の収縮によ
り、図３に示すように曲げモーメントＭが発生し、ジン
バル６を変形させる。このジンバル６の変形により、ス
ライダ４のＣ型コア１を空気流(負荷)Ｆで押すことにな
り、Ｃ型コア１がスライダ面15より僅かｄ(約100nm)だ
け押し下げられ凸となる(図３の破線)。この結果、スラ
イダ面15が磁気記録媒体12の面と同一平面でなくなり、
磁気ディスクを長時間に亘りコンタクト・スタート・ス
トップさせると磁気記録媒体12の面に傷をつけ、また、
浮動型磁気ヘッド自体も損傷するという問題があった。In the HGA (head gimbal assay) in which the gimbal 6 is located also on the C-shaped core 1 of the slider 4 described above, as shown in FIG. A bending moment M is generated and the gimbal 6 is deformed. Due to this deformation of the gimbal 6, the C-shaped core 1 of the slider 4 is pushed by the air flow (load) F, and the C-shaped core 1 is pushed down from the slider surface 15 by only d (about 100 nm) to be convex (Fig. 3 (dashed line). As a result, the slider surface 15 is not flush with the surface of the magnetic recording medium 12,
When the magnetic disk is contact-started / stopped for a long time, the surface of the magnetic recording medium 12 is damaged, and
There is a problem that the floating magnetic head itself is also damaged.
【００１０】本発明は、このような従来の問題点を鑑み
なされたもので、樹脂10の収縮によるジンバル６による
Ｃ型コア１の変形を防ぐ浮動型磁気ヘッドを提供するこ
とを目的とする。The present invention has been made in view of such conventional problems, and an object of the present invention is to provide a floating magnetic head which prevents the gimbal 6 from deforming the C-shaped core 1 due to the contraction of the resin 10.
【００１１】[0011]
【課題を解決するための手段】本発明はこの問題を解決
するため、Ｉ型コアとＣ型コアの夫々の上面を同一平面
上に正確に配置し、両コアの下面のスライダ面で前記Ｃ
型コアの磁極の先端と前記Ｉ型コアの磁極の角端との間
で浮動型磁気ヘッドギャップ部を形成し、接合用ガラス
によって前記Ｃ型コアと前記Ｉ型コアとを接着固定して
スライダが形成される固定磁気ディスク装置用の浮動型
磁気ヘッドにおいて、ロードアームの先端のジンバル
を、前記Ｃ型コアの上部にかけずに、Ｉ型コアの上部だ
けにかけて、熱硬化型エポシキ樹脂等の樹脂を介在させ
て前記スライダに接着、固定したことを特徴とする。In order to solve this problem, the present invention accurately arranges the upper surfaces of the I-shaped core and the C-shaped core on the same plane, and the slider surfaces on the lower surfaces of both cores are used to form the C-shaped core.
A floating magnetic head gap is formed between the tip of the magnetic pole of the mold core and the corner of the magnetic pole of the I core, and the C-shaped core and the I-shaped core are bonded and fixed to each other with a glass for bonding. In a floating magnetic head for a fixed magnetic disk device in which a disk is formed, a resin such as a thermosetting epoxy resin is applied only to the upper part of the I-shaped core without the gimbal at the tip of the load arm being applied to the upper part of the C-shaped core. It is characterized in that it is adhered and fixed to the slider with the interposition of.
【００１２】[0012]
【作用】本発明によれば、スライダ４のＣ型コア１の上
にはジンバル６が位置しないので、樹脂の収縮による曲
げモーメントＭ′が発生しても、このジンバル６の変形
は、Ｃ型コア１にまでは及ばず変形は起こらず、Ｃ型コ
ア１によるスライダ面15の押し下げも無い。According to the present invention, since the gimbal 6 is not located on the C-shaped core 1 of the slider 4, even if the bending moment M'is generated due to the contraction of the resin, the deformation of the gimbal 6 is C-shaped. It does not reach the core 1 and is not deformed, and the slider surface 15 is not pushed down by the C-shaped core 1.
【００１３】[0013]
【実施例】以下、本発明の実施例を図面により説明す
る。図１は本発明の一実施例による浮動型磁気ヘッドの
側面図、図２は図１の浮動型磁気ヘッドの斜視図であ
る。図の符号は前図と同じである。Embodiments of the present invention will be described below with reference to the drawings. 1 is a side view of a floating magnetic head according to an embodiment of the present invention, and FIG. 2 is a perspective view of the floating magnetic head of FIG. The reference numerals in the figure are the same as in the previous figure.
【００１４】Ｉ型コア２とＣ型コア１とは上部と下部と
を同一平面上に正確に配置し、接合用ガラス３によって
接着固定されて、スライダ４が形成される。浮動型磁気
ヘッドギャップ部11はスライダ面15で前記Ｃ型コア１の
磁極の先端と前記Ｉ型コア２の磁極の角端との間で形成
される。The I-shaped core 2 and the C-shaped core 1 are accurately arranged with their upper and lower parts on the same plane, and are bonded and fixed by the bonding glass 3 to form the slider 4. The floating magnetic head gap portion 11 is formed on the slider surface 15 between the tip of the magnetic pole of the C-shaped core 1 and the corner end of the magnetic pole of the I-shaped core 2.
【００１５】ロードアーム７の先端のジンバル６は、前
記Ｃ型コア１にかけずに、前記Ｉ型コア２の上部だけに
かけて、熱硬化型エポシキ樹脂等の樹脂10を介在させて
スライダ４に接着、固定される。The gimbal 6 at the tip of the load arm 7 is not attached to the C-shaped core 1 but only to the upper portion of the I-shaped core 2 and is adhered to the slider 4 with a resin 10 such as a thermosetting epoxy resin interposed. Fixed.
【００１６】本発明の浮動型磁気ヘッドのスライダ４の
前記Ｉ型コア２の空気流入端(図面の右側)よりロードポ
イント13までの距離Ｌ′は、Ｌ′＝Ｌとなるよう設定さ
れる。その為、本発明の前記ジンバル６の前記ロードポ
イント13からジンバル６の先端迄の長さＢは適切に設定
される。The distance L'from the air inflow end (right side of the drawing) of the I-shaped core 2 of the slider 4 of the floating magnetic head of the present invention to the load point 13 is set so that L '= L. Therefore, the length B from the load point 13 of the gimbal 6 of the present invention to the tip of the gimbal 6 is appropriately set.
【００１７】このような構成であるので曲げモートＭ′
が発生しジンバル６が仮りに変形しても、スライダ４の
Ｃ型コア１におよばず従来のようなスライダ面15が僅か
に押し下げられる(図３)ことがない。With such a structure, the bending moat M '
Even if the gimbal 6 is deformed and the gimbal 6 is deformed, it does not reach the C-shaped core 1 of the slider 4 and the conventional slider surface 15 is not slightly pushed down (FIG. 3).
【００１８】本発明の浮動型磁気ヘッドは、インライン
・タイプについて説明したが、スタンダード・タイプで
も差し支えないことは勿論である。The floating magnetic head of the present invention has been described as the in-line type, but it goes without saying that the standard type may also be used.
【００１９】このように構成された従来と本発明の浮動
型磁気ヘッドの浮上度の平面データを夫々図６，図７に
示し、本発明の浮動型磁気ヘッドの浮上度の平面度デー
タである図７からその有効性が証明される。The flying height plane data of the conventional and the floating magnetic heads of the present invention thus constructed are shown in FIGS. 6 and 7, respectively, and are the flying degree flatness data of the floating magnetic head of the present invention. Its effectiveness is proved from FIG.
【００２０】[0020]
【発明の効果】以上説明したように、本発明の浮動型磁
気ヘッドは、スライダのＣ型コアとＩ型コアのジンバル
取り付け面が同一平面上にあり、インライン・タイプの
ＨＧＡに於いて、巻線が施される側の前記Ｃ型コアの上
には前記ジンバルが位置しないように、スライダとジン
バルを熱硬化樹脂等の樹脂を介在させて接着させたもの
である。As described above, in the floating magnetic head of the present invention, the gimbal mounting surfaces of the C-type core and the I-type core of the slider are on the same plane, and in the in-line type HGA, the winding type magnetic head is wound. A slider and a gimbal are adhered with a resin such as a thermosetting resin interposed so that the gimbal is not positioned on the C-shaped core on the side where the wire is applied.
【００２１】この結果、第１に樹脂の収縮により、図１
に示すように曲げモーメントＭ′が発生し前記ジンバル
を変形させるが、この該ジンバルの変形は、前記Ｃ型コ
アにまでは及ばず変形が起こらず、該Ｃ型コアによるス
ライダ面の押し下げも無い。As a result, firstly, due to the shrinkage of the resin,
Bending moment M'is generated to deform the gimbal as shown in FIG. 2, but the deformation of the gimbal does not extend to the C-shaped core, and the deformation does not occur, and the slider surface is not pushed down by the C-shaped core. ..
【００２２】第２に本発明の磁気ディスクを動作させ、
長時間に亘りコンタクト・スタート・ストップさせて
も、スライダ面が変形していないので、磁気記録媒体面
に傷をつけ、記録情報を破壊することがない。Secondly, the magnetic disk of the present invention is operated,
Even after contact start / stop for a long time, since the slider surface is not deformed, the surface of the magnetic recording medium is not scratched and the recorded information is not destroyed.
【００２３】第３の浮動型磁気ヘッドギャップ部自体も
損傷されないため、ヘッド電磁変換特性の劣化がない。
また、荷重の位置(ロード・ポイント)は従来と同じ位置
に設定しているため、浮動型磁気ヘッドの浮上量、及び
浮上姿勢が従来と変わることがない。Since the third floating magnetic head gap portion itself is not damaged, the head electromagnetic conversion characteristics are not deteriorated.
Further, since the load position (load point) is set at the same position as in the conventional case, the flying height and the floating posture of the floating magnetic head are the same as in the conventional case.
【図１】本発明の一実施例による浮動型磁気ヘッドの側
面図である。FIG. 1 is a side view of a floating magnetic head according to an embodiment of the present invention.
【図２】図１の浮動型磁気ヘッドの斜視図である。FIG. 2 is a perspective view of the floating magnetic head of FIG.
【図３】従来の固定磁気ディスク装置用浮動型磁気ヘッ
ドの側面図である。FIG. 3 is a side view of a conventional floating magnetic head for a fixed magnetic disk device.
【図４】図３の浮動型磁気ヘッドの一部の斜視図であ
る。FIG. 4 is a perspective view of a part of the floating magnetic head of FIG.
【図５】Ｉ型コアの斜視図である。FIG. 5 is a perspective view of an I-shaped core.
【図６】従来の浮動型磁気ヘッドの浮上度の平面度デー
タである。FIG. 6 is flying degree flatness data of a conventional floating magnetic head.
【図７】本発明の浮動型磁気ヘッドの浮上度の平面度デ
ータである。FIG. 7 is flying degree flatness data of the floating magnetic head of the present invention.
１…Ｃ型コア、 ２…Ｉ型コア、 ３…接合用ガラス、
４…スライダ、 ５…リード・ライト用コイル線、
６…ジンバル、 ７…ロードアーム、 ８…絶縁チュー
ブ固定爪、 ９…絶縁チューブ、 10…樹脂、 11…浮
動型磁気ヘッドギャップ、 12…磁気記録媒体、 13…
ロードポイント、 14…浮動型磁気ヘッド重心、 15…
スライダ面、 Ｆ…空気流、 Ｍ，Ｍ′…曲げモーメン
ト。1 ... C type core, 2 ... I type core, 3 ... Bonding glass,
4 ... slider, 5 ... read / write coil wire,
6 ... Gimbal, 7 ... Load arm, 8 ... Insulation tube fixing claw, 9 ... Insulation tube, 10 ... Resin, 11 ... Floating magnetic head gap, 12 ... Magnetic recording medium, 13 ...
Load point, 14 ... Floating magnetic head center of gravity, 15 ...
Slider surface, F ... Air flow, M, M '... Bending moment.
Claims (1)
平面上に正確に配置し、両コアの下面のスライダ面で前
記Ｃ型コアの磁極の先端と前記Ｉ型コアの磁極の角端と
の間で浮動型磁気ヘッドギャップ部を形成し、接合用ガ
ラスによって前記Ｃ型コアと前記Ｉ型コアとを接着固定
してスライダが形成される固定磁気ディスク装置用の浮
動型磁気ヘッドにおいて、 ロードアームの先端のジンバルを、前記Ｃ型コアの上部
にかけずに、Ｉ型コアの上部だけにかけて、熱硬化型エ
ポシキ樹脂等の樹脂を介在させて前記スライダに接着、
固定したことを特徴とする浮動型磁気ヘッド。Claim: What is claimed is: 1. The upper surfaces of the I-shaped core and the C-shaped core are accurately arranged on the same plane, and the tip of the magnetic pole of the C-shaped core and the slider surface of the lower surface of both cores Fixed magnetic disk device in which a floating magnetic head gap is formed between the magnetic poles of the I-shaped core and the C-shaped core and the I-shaped core are bonded and fixed by a bonding glass to form a slider. In a floating magnetic head for use in a vehicle, the gimbal at the tip of the load arm is not applied to the upper portion of the C-shaped core but only to the upper portion of the I-shaped core, and a resin such as a thermosetting epoxy resin is interposed to adhere to the slider. ,
A floating magnetic head characterized by being fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21043291A JPH0536224A (en) | 1991-07-29 | 1991-07-29 | Floating type magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21043291A JPH0536224A (en) | 1991-07-29 | 1991-07-29 | Floating type magnetic head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0536224A true JPH0536224A (en) | 1993-02-12 |
Family
ID=16589227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21043291A Pending JPH0536224A (en) | 1991-07-29 | 1991-07-29 | Floating type magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0536224A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07320435A (en) * | 1994-03-31 | 1995-12-08 | Nec Corp | Magnetic head assembly and magnetic disk device formed by using the same |
-
1991
- 1991-07-29 JP JP21043291A patent/JPH0536224A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07320435A (en) * | 1994-03-31 | 1995-12-08 | Nec Corp | Magnetic head assembly and magnetic disk device formed by using the same |
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