JPS5860404A - Magnetic disk device - Google Patents
Magnetic disk deviceInfo
- Publication number
- JPS5860404A JPS5860404A JP15916681A JP15916681A JPS5860404A JP S5860404 A JPS5860404 A JP S5860404A JP 15916681 A JP15916681 A JP 15916681A JP 15916681 A JP15916681 A JP 15916681A JP S5860404 A JPS5860404 A JP S5860404A
- Authority
- JP
- Japan
- Prior art keywords
- head
- core
- magnetic
- magnetic disk
- data head
- 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
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B5/596—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks
Abstract
Description
【発明の詳細な説明】
この発明は電子計算機２周辺端末機器等に用いられる磁
気ディスク装置に関するものである従来この種の装置と
して第１図に示すものがあった。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a magnetic disk device used in peripheral terminal equipment of a computer 2, etc. Conventionally, there has been a device of this type as shown in FIG.
図において、（１）は磁気ディスクで、情報を記録する
ものである。（２）はモーターで、モータ軸（３）に固
定された磁気ディスク（１）を回転駆動する。（４）は
サーボヘッドで、磁気ディスク（１）から位置情報を読
み出すものである。（５）はデータヘッドで、磁気ディ
スク（１）に（から）情報を記録（再生）するものであ
る。（６）はキャリッジで、サーボヘッド（４）とデー
タヘッド（５）を図示していない駆動機構で移動させる
ものである。（７）はベースで、モータ（２）やその他
図示していない駆動機構を固定する台である。（８）は
引出し線、（９）はＩＣ，ＯＣ）はコアである。In the figure, (1) is a magnetic disk that records information. (2) is a motor that rotates a magnetic disk (1) fixed to a motor shaft (3). (4) is a servo head that reads position information from the magnetic disk (1). (5) is a data head that records (reproduces) information on (from) the magnetic disk (1). (6) is a carriage that moves the servo head (4) and data head (5) by a drive mechanism (not shown). (7) is a base, which is a stand on which the motor (2) and other drive mechanisms (not shown) are fixed. (8) is a leader line, (9) is an IC, OC) is a core.
次に動作について説明する。モータ（２）によっって磁
気ディスク（１）が回転すると、磁気ディスク（１）の
面上に粘性空気流が発生し、ザ〜ボヘソド（４）とデー
タヘッド（５）の板バネの加圧力と平衡して微小な空隙
を保ちながら、サーボヘッド゛（４）（データヘッド（
５））は、（訂気デ、イスク（１）の而−４−に浮上し
、磁気ディスク（］）から（に）位置情報を読み出す（
情報を記録１１１生する）ことができる。電子計算機か
ら命令が受けとられると、サーボヘッド（４１（７）
：Ｉ −ｆ （１（ｐ 、引き出Ｌ ＋Ｖｄｉ！（３）
、ｒ（’３（り）を介して磁気ディスク（１）の位置を
読み、出しながら９図示していがい駆ｌ１ｌＩＪ％構に
」：つてギ、 ＩＪノジ（６）が移動位置決めさＪｌ、
だ後、データヘッド（５）の引き出し線（ｓ）、 Ｉ
０（９）、 コア（１（着を介して（調気ディスク
（１）に（から）情報を記録（Ｉ１１生）する従来の磁
気ディスク装置は以上のように構成されているので、デ
ータヘット′（５）のコア（１（事等を介して情報を記
録するときに、記録電流によって発生する漏洩磁界が空
中を仏間して、サーボヘッド（４）やサーボヘッド（４
）から構成される装置情報が誤り信号になったり、信号
雑音比が低下したりして、データヘノｌ−’ （５）に
位置ずれを起し、情報の記録又は再生にミスを生ずる欠
点があった。Next, the operation will be explained. When the magnetic disk (1) is rotated by the motor (2), a viscous air flow is generated on the surface of the magnetic disk (1), and the force of the leaf spring of the head (4) and the data head (5) is increased. While maintaining a minute gap in equilibrium with the pressure, the servo head (4) (data head (
5)) levitates to the surface of (1) and reads the position information from the magnetic disk (]).
The information can be recorded (111). When a command is received from the electronic computer, the servo head (41(7)
:I −f (1(p, drawer L +Vdi!(3)
,r('3(ri)) to read the position of the magnetic disk (1), and while taking it out, 9 shows the position of the insulator (11lIJ%).
After that, the lead line (s) of the data head (5), I
0 (9), core (1), the conventional magnetic disk device that records information (I11 raw) on (I11 raw) (through) the core (1) is configured as described above. '(5) When recording information through the core (1), the leakage magnetic field generated by the recording current travels through the air, causing damage to the servo head (4) and the servo head (4).
) may become an erroneous signal or the signal-to-noise ratio may drop, causing a positional shift in the data (5) and causing errors in recording or reproducing information. Ta.
この発明は、上記のような従来のものの欠点を除去する
ためになされたもので、サーボヘッド（４）又はデータ
ヘッド（５）のコア（１０の記録再生ギャップ、コイル
又は磁性材等の側面に、コアＯＱを囲むように導電体（
層）又は磁性体（層）を設けることにより、データヘッ
ド（５）から発生する漏洩磁界がサーボヘッド（４）に
回シ込む磁路を遮蔽し、上記従来の欠点を除去できる装
置を提供することを目的としている。This invention was made in order to eliminate the drawbacks of the conventional ones as described above, and includes a core (10 recording/reproducing gaps, a coil, a magnetic material, etc.) on the side of the servo head (4) or data head (5). , a conductor (
To provide a device that can eliminate the above-mentioned drawbacks of the conventional technology by providing a magnetic material (layer) or a magnetic material (layer) to shield a magnetic path through which a leakage magnetic field generated from a data head (5) enters a servo head (4). The purpose is to
以下、この発明の一実施例を図について説明する。第２
図、第３図において、（１）〜００は第１図と同じであ
る。α１）はコアシールドで、サーボヘッド（４）又は
データヘッド（５）のコアｆｌＯの記録再生ギャップ、
コイル又は磁性材の側面に、コア四を囲むように取り付
けられた導電体（層）又は磁性体（層）である。An embodiment of the present invention will be described below with reference to the drawings. Second
3, (1) to 00 are the same as in FIG. 1. α1) is a core shield, which is the recording/reproducing gap of the core flO of the servo head (4) or data head (5);
It is a conductive material (layer) or a magnetic material (layer) attached to the side surface of the coil or magnetic material so as to surround the core 4.
コアシールド（ｌυは、サーボヘッド（４）とデータヘ
ッド（５）の浮上に影響ない位の軽い薄い小さい材料で
できている。The core shield (lυ) is made of a light, thin, and small material that does not affect the flying of the servo head (4) and data head (5).
次に動作について説明する。Next, the operation will be explained.
データヘッド（５）に記録電流が流ね、ると、データヘ
ッド（５）のコア（１０等から発生する漏洩磁界が、コ
アシールド０１）によって遮蔽されるために。When a recording current flows through the data head (5), the leakage magnetic field generated from the core (10, etc.) of the data head (5) is shielded by the core shield 01.
サーボヘッド（４）のコアＯＩ等に回り込んで混入１〜
たり、雑音になったりしない。Contamination by getting around to the core OI of the servo head (4) 1~
or create noise.
したがって、データヘッド（５）が位置ずれの力い状態
で情報が正しく記録又は再生される。Therefore, information can be recorded or reproduced correctly even when the data head (5) is strongly misaligned.
他の動作は、従来の装置と同様に行なわれるなお、上記
実施例では、磁気ディスク装置を挙げたが、録音装置、
録画装置等信の装置にも広く適用される。また、」二記
実Ｍｌｉ例でシＬ、キャリッジの駆動を直線的に行って
いるが１回転させても同じである。Other operations are performed in the same manner as in conventional devices. In the above embodiment, a magnetic disk device is used, but a recording device,
It is also widely applied to communication devices such as recording devices. In addition, in the second example, the carriage is driven linearly, but the same effect is achieved even if the carriage is rotated once.
１だ、」１記実施例では、コアシールドを、板にしたが
メッキや蒸着でもよく、サーボヘッド又はデータヘッド
のコアに設けたが両ヘッドのコアに設けてもよく、上記
実施例と同様の効果を奏する。In the first embodiment, the core shield was a plate, but it could also be plated or vapor-deposited, and although it was provided on the core of the servo head or the data head, it may be provided on the cores of both heads, similar to the above embodiment. It has the effect of
以上のように、この発明によれば１位置読み出しヘッド
又は情報記録再生ヘッド等磁気ヘッド 空隙２巻線又は
磁性材の側面を囲むように、磁気ヘッドに導電体又は磁
性体もしくは導電層又は磁性層を設けたので、情報記録
再生ヘッドから位置読み出しヘッドへの漏洩磁 を遮蔽
し、情報を正しく記録又は再生できる効果がち図、第２
図はこの発明の一実施例による磁気ディスク装置を示す
側面図、第８図は第２図の平面図である。As described above, according to the present invention, a magnetic head such as a one-position read head or an information recording/reproducing head is provided with a conductive material or a magnetic material or a conductive layer or a magnetic layer so as to surround the sides of the two air-gap windings or the magnetic material. Since the magnetic head is provided with a magnetic head, magnetic leakage from the information recording/reproducing head to the position reading head can be shielded, and information can be recorded or reproduced correctly.
The figure is a side view showing a magnetic disk device according to an embodiment of the present invention, and FIG. 8 is a plan view of FIG. 2.
（１）・・・磁気ディスク、（２）・・・モータ、（４
）−・・サーボヘッド、（５）・・データヘッド、（６
）・・・キャリッジ。(1)...Magnetic disk, (2)...Motor, (4
)-- Servo head, (5) Data head, (6
)···carriage.
（ｌｉ・・・コア、 （１υ・・・コアシールド。(li...core, (1υ...core shield).
なお９図中同一符号は、同一、又は相当部分を示す。Note that the same reference numerals in Figure 9 indicate the same or equivalent parts.
Claims (1)
うに、磁気ヘッドにコアシールド材を設けたことを特徴
とする磁気ディスク装置。 （２１コアシールド拐として導電体を用いたことを特徴
とする特許請求の範囲第（１）項記載の磁気ディスク装
置。 （３） コアシールド材として磁性体を用いたことを
特徴とする特許請求の範囲第（１）項記載の磁気ディス
ク装置。 （４） コアシールド材と（−で蒸着等の手段により
形成した導電体層を用いたことを特徴とする特許請求の
範囲第（１）項記載の磁気ディスク装置０ （５） コアシールド材として蒸着等の手段により形
成した磁性体層を用いたことを特徴とする特許請求の範
囲第（１）項記載の磁気ディスク装置。Claims: (1) A magnetic disk device characterized in that a core shield material is provided on the magnetic head so as to surround two air gap windings or the side surface of the core of the magnetic head. (21) A magnetic disk device according to claim (1), characterized in that a conductive material is used as the core shield material. (3) A patent claim, characterized in that a magnetic material is used as the core shield material. A magnetic disk device according to claim (1). (4) Claim (1) characterized in that a core shield material and a conductive layer formed by vapor deposition or the like are used. (5) The magnetic disk device according to claim (1), characterized in that a magnetic layer formed by means such as vapor deposition is used as the core shield material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15916681A JPS5860404A (en) | 1981-10-06 | 1981-10-06 | Magnetic disk device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15916681A JPS5860404A (en) | 1981-10-06 | 1981-10-06 | Magnetic disk device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5860404A true JPS5860404A (en) | 1983-04-09 |
Family
ID=15687711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15916681A Pending JPS5860404A (en) | 1981-10-06 | 1981-10-06 | Magnetic disk device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5860404A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60136024A (en) * | 1983-12-23 | 1985-07-19 | Mitsubishi Electric Corp | Magnetic head for servocontrol |
| US5043213A (en) * | 1989-03-20 | 1991-08-27 | Mitsubishi Denki Kabushiki Kaisha | Magnetic disk |
-
1981
- 1981-10-06 JP JP15916681A patent/JPS5860404A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60136024A (en) * | 1983-12-23 | 1985-07-19 | Mitsubishi Electric Corp | Magnetic head for servocontrol |
| US5043213A (en) * | 1989-03-20 | 1991-08-27 | Mitsubishi Denki Kabushiki Kaisha | Magnetic disk |
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