JPS5897130A - Magnetic disc device - Google Patents

Magnetic disc device

Info

Publication number
JPS5897130A
JPS5897130A JP19647281A JP19647281A JPS5897130A JP S5897130 A JPS5897130 A JP S5897130A JP 19647281 A JP19647281 A JP 19647281A JP 19647281 A JP19647281 A JP 19647281A JP S5897130 A JPS5897130 A JP S5897130A
Authority
JP
Japan
Prior art keywords
head
lead
information
data head
servo
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.)
Granted
Application number
JP19647281A
Other languages
Japanese (ja)
Other versions
JPH036567B2 (en
Inventor
Shinji Sengoku
千石　真治
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP19647281A priority Critical patent/JPS5897130A/en
Publication of JPS5897130A publication Critical patent/JPS5897130A/en
Publication of JPH036567B2 publication Critical patent/JPH036567B2/ja
Granted legal-status Critical Current

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

Landscapes

  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)

Abstract

PURPOSE:To shield leakage magnetic field of a servo head from a data head and to record and reproduce information correctly, by providing a cnductor for a position where a servo head and a lead of a data head correspond or between both the heads. CONSTITUTION:The device consists of a magnetic disc 1 rotating by a motor 2, a position readout servo head 4, a data head 5 for information recording and reproduction, a lead 8 and an IC9 for amplification, and a lead shield 10 is a conductor fitted to the lead 8. When a recording current flows to the data head 5, the leakage magnetic flux generated from the lead 8 is not mixed to each part of a servo head 4 shielded with the lead shield 10 as noise. Thus, position information from the servo head 4 is correctly transmitted and information can be recorded and reproduced correctly with the data head 5 which is not shifted.

Description

【発明の詳細な説明】 この発明は電子計算機９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。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a magnetic disk device used in computer peripheral terminal equipment and the like.

従来、この株の装置として第１図に示すものがあった。Conventionally, there was a device for this strain as shown in FIG.

図において、（１）は磁気ディスクで。In the figure, (1) is a magnetic disk.

情報を記録するものである。（２）はモータで、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）か讐
位置情報を読み出すものである。（５）はデータヘッド
磁気ディスク（１）に情報を記録し、又磁気ディスク（
１）から情報を再生するものである。It 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) records information on the data head magnetic disk (1), and also records information on the magnetic disk (
1) to reproduce information.

（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）はペースで、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。(6) is a carriage that moves the servo head (4) and data head (5) by a drive mechanism (not shown). (7) is a pace, which is a stand on which the motor (2) and other drive mechanisms (not shown) are fixed.

（８）は引き出し線、（９）は増幅用のＩＣである。(8) is a lead line, and (9) is an amplification IC.

次に動作について説明する。モータ（２）によって磁気
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、サーボヘッド（４）とデータ
ヘッド（５）に浮力を与え、サーボヘッド（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）。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), which gives buoyancy to the servo head (4) and the data head (5). ) and the servo head (4) while maintaining a minute gap in balance with the pressing force of the leaf spring of the data head (5).

データヘッド（５）は、磁気ディスク（１）の面上に浮
上し、磁気ディスク（１）から位置情報を読み出したり
、磁気ディスク（１）に情報を記録再生する事ができる
。電子計算機から命令が受けとられると、サーボヘッド
（４）の引き出し線（８）とＩＣ（９１を介して磁気デ
ィスク（１）の位置を読み出しながら。The data head (5) floats above the surface of the magnetic disk (1) and can read positional information from the magnetic disk (1) and record and reproduce information on the magnetic disk (1). When a command is received from the electronic computer, the position of the magnetic disk (1) is read out via the lead wire (8) of the servo head (4) and the IC (91).

図示していない駆動機構によってキャリッジ（６）が移
動位置決めされた後、データヘッド（５）の引き出し線
（８）とＩＣ＋９１を介して磁気ディスク（１）に情報
を記録、又は磁気ディスク（１）から情報を再生する。After the carriage (6) is moved and positioned by a drive mechanism (not shown), information is recorded on the magnetic disk (1) via the lead wire (8) of the data head (5) and the IC+91. Play information from.

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、データヘッド（５）の引き出し線（８）を介して
情報を記録する時に、記録電流によって発生する漏洩磁
界が空中を伝播して、サーボヘッド（４）やサーボヘッ
ド（４）の引き出し線（８）やＩＣ（９１に雑音となっ
て混入し、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、
データヘッド（５）に位置ずれを起し、情報の記録又は
再生に誤誤りを生ずる欠点があった。Since the conventional magnetic disk device is configured as described above, when information is recorded through the lead wire (8) of the data head (5), the leakage magnetic field generated by the recording current propagates through the air. Noise may enter the servo head (4), the lead wire (8) of the servo head (4), and the IC (91), causing the device information composed of the servo head (4) to become an erroneous signal, or causing the signal-to-noise ratio to deteriorate. may decrease,
This has the disadvantage that the data head (5) may be misaligned, resulting in errors in recording or reproducing information.

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）の引き出し線（８）に、サーボヘッド（４
）とデータヘッド（５）の間に、導電体又Ｖｓ、磁性体
を設ける事により、データヘッド（５）から発生する漏
洩磁界がサーボヘッド（５）に回り込む磁路を！蔽し、
上記従来の欠点を除去できる装置を提供する事を目的と
している。This invention was made in order to eliminate the drawbacks of the conventional ones as described above.
) and the data head (5), by providing a conductor, Vs, or a magnetic material, a magnetic path is created in which the leakage magnetic field generated from the data head (5) goes around to the servo head (5)! cover,
It is an object of the present invention to provide a device that can eliminate the above-mentioned conventional drawbacks.

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）〜（９）は＠１図と同じで
あり９０〔は引き出し線シールドで。An embodiment of the present invention will be described below with reference to the drawings. Second
In Figures 3 and 3, (1) to (9) are the same as in Figure @1, and 90 [ is the lead wire shield.

サーボヘッド（４）又はデータヘッド（５）の引き出し
線（８）に張り付けた導電体（例えば銅板）である。It is a conductor (for example, a copper plate) attached to the lead wire (8) of the servo head (4) or data head (5).

引き出し線シールド（１０１は、サーボヘッド（４）と
データヘッド（５）とキャリッジ（６）の移動に対して
は。The lead wire shield (101) is used for the movement of the servo head (4), data head (5), and carriage (6).

ぶつからないようになっている。This prevents them from colliding.

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）に記録電流が流れると、データヘッ
ド（５）の引き出し線（８）から発生する漏洩磁界が、
引き出し線シールド叫によって遮蔽されるために、サー
ボヘッド（４）の各部に回り込んで混入した９、雑音に
なりたりしない。When a recording current flows through the data head (5), a leakage magnetic field generated from the lead wire (8) of the data head (5)
Since the outgoing wire is shielded by the shielding wire, it does not get mixed into various parts of the servo head (4) and become noise.

従って、データヘッド（５）が位置ずれのない状態で、
情報が正しく記録又は再生される。他の動作は、従来の
装置と同様に行なわれる。Therefore, when the data head (5) is not misaligned,
Information is recorded or reproduced correctly. Other operations are similar to conventional devices.

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、録画装置等他の装置にも広く適用される。ま
た、上記実施例では、キャリッジの駆動を直線的に行な
っているが１回転させても同じである。Note that in the above embodiment, a magnetic disk device was mentioned, but
It is also widely applied to other devices such as recording devices and recording devices. Further, in the above embodiment, the carriage is driven linearly, but the same effect can be achieved even if the carriage is driven one revolution.

また、上記実施例では、引き出し線シールドを導電体と
したが、パーマロイ等の磁性体でもよく、また、板状の
ものにしたがメッキや蒸着等による層状のものでもよい
。さらに、上記実施例ではサーボヘッド又はデータヘッ
ドの引き出し線に設けたが１両ヘッドの引き出し線間に
設けてもよく、上記実施例と同様の効果を奏する。Further, in the above embodiment, the lead wire shield is made of a conductive material, but it may be made of a magnetic material such as permalloy, and although it is made into a plate shape, it may be made into a layered material by plating, vapor deposition, etc. Further, in the above embodiment, the wire is provided on the lead line of the servo head or the data head, but it may be provided between the lead lines of both heads, and the same effect as in the above embodiment can be obtained.

またサーボヘッド（４）又はデータヘッド（５）とＩＣ
（９）との間に限らず、Ｉｃｆ９１と図示していないカ
ードの間に設けても同じである。Also, the servo head (4) or data head (5) and IC
The same effect can be provided not only between Icf91 and a card (not shown), but also between Icf91 and a card (not shown).

以上のように、この発明によれば９位置読み出しヘッド
又は情報記録再生ヘッドの引き出し線又は印刷基板に１
両ヘッド間に、導電体又は磁性体を設けたので、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界を遮
蔽し、情報を正しく記録又は再生できる効果がある。As described above, according to the present invention, the lead line or the printed circuit board of the 9-position read head or the information recording/reproducing head is
Since a conductive material or a magnetic material is provided between both heads, leakage magnetic fields from the information recording/reproducing head to the position reading head are shielded, and information can be recorded or reproduced correctly.

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

第１図は従来の磁気ディスク装置を示す側面図、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３図はこの発明の一実施例による磁気ディスク
装置を示す平面図である。 （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、（８）・・・引き出し線、００
）・・・引き出し線シールドなお９図中、同一符号は同
一、又は相当部分を示す。 代理人　葛　野　信　−FIG. 1 is a side view showing a conventional magnetic disk device, FIG. 2 is a side view showing a magnetic disk device according to an embodiment of the present invention, and FIG. 3 is a plan view showing a magnetic disk device according to an embodiment of the present invention. It is a diagram. (1)...Magnetic disk, (2)...Motor, (4
)... Servo head, (5)... Data head, (
6) Carriage, (8) Lead line, 00
)...Leader wire shield In Figure 9, the same reference numerals indicate the same or equivalent parts. Agent Shin Kuzuno −

Claims (1)

【特許請求の範囲】[Claims] 記憶ディスクを挾んで配置された位置読み出し用のサー
ボヘッドと情報記録再生用データヘッドの引き出し線と
対応した位置に、又は上記両ヘッド間に、導電体又は磁
性体を設けた事を特徴とする磁気ディスク装置。A conductive material or a magnetic material is provided at a position corresponding to the lead line of a servo head for position reading and a data head for recording and reproducing information, which are arranged to sandwich the storage disk, or between the two heads. Magnetic disk device.
JP19647281A 1981-12-07 1981-12-07 Magnetic disc device Granted JPS5897130A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19647281A JPS5897130A (en) 1981-12-07 1981-12-07 Magnetic disc device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19647281A JPS5897130A (en) 1981-12-07 1981-12-07 Magnetic disc device

Publications (2)

Publication Number Publication Date
JPS5897130A true JPS5897130A (en) 1983-06-09
JPH036567B2 JPH036567B2 (en) 1991-01-30

Family

ID=16358366

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19647281A Granted JPS5897130A (en) 1981-12-07 1981-12-07 Magnetic disc device

Country Status (1)

Country Link
JP (1) JPS5897130A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5395009A (en) * 1977-01-31 1978-08-19 Fujitsu Ltd Magnetic disc apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5395009A (en) * 1977-01-31 1978-08-19 Fujitsu Ltd Magnetic disc apparatus

Also Published As

Publication number Publication date
JPH036567B2 (en) 1991-01-30

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