JPS6161223A - Magnetic disk device - Google Patents
Magnetic disk deviceInfo
- Publication number
- JPS6161223A JPS6161223A JP18234484A JP18234484A JPS6161223A JP S6161223 A JPS6161223 A JP S6161223A JP 18234484 A JP18234484 A JP 18234484A JP 18234484 A JP18234484 A JP 18234484A JP S6161223 A JPS6161223 A JP S6161223A
- Authority
- JP
- Japan
- Prior art keywords
- arm
- magnetic head
- recording
- reproducing information
- 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
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
- G11B5/54—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 into or out of its operative position or across tracks
- G11B5/55—Track change, selection or acquisition by displacement of the head
- G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
-
- 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
- G11B5/488—Disposition of heads
- G11B5/4886—Disposition of heads relative to rotating disc
Abstract
Description
【発明の詳細な説明】
本発明は磁気デイスク装置に関し、特に情報記録・再生
用の磁気ヘッドに改良を加えた磁気ディスク装置。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a magnetic disk device, and more particularly to a magnetic disk device with an improved magnetic head for recording and reproducing information.
従来の技術
従来この毬の磁気ディスク装置は、第４図及び第５図に
示すように磁気ヘッド５のアーム１００の形状が、磁気
ヘッド５の長手方向（Ｘ−Ｘ軸）及び板厚方向（Ｙ−Ｙ
軸）ＶＣ対して共（線対称な形状となっておらず、且つ
、磁気ヘッド５の信号線包含用のフラットケーブル１０
１が片面のみに設けられて−る。従って、情報の記録時
と、再生時とで、温度差がある場合、磁気ヘッド５のア
ーム１００の熱的ノリ、ねじれ等の変形がおこる為、所
謂、サーマルオフトラック現象を起こし、情報の書込み
・読出しに誤動作を発生するという欠点がちった。2. Description of the Related Art As shown in FIGS. 4 and 5, in this conventional magnetic disk drive, the shape of the arm 100 of the magnetic head 5 is oriented in the longitudinal direction (X-X axis) and the thickness direction (X-X axis) of the magnetic head 5. Y-Y
A flat cable 10 that does not have a line-symmetrical shape with respect to the axis) VC and is used to include the signal line of the magnetic head 5.
1 is provided on only one side. Therefore, if there is a temperature difference between recording and reproducing information, the arm 100 of the magnetic head 5 will be deformed, such as thermally glued or twisted, resulting in the so-called thermal off-track phenomenon, which prevents information from being written. - It had the disadvantage of causing malfunctions during reading.
本発明は、情報の記録時と再生時とで温度差がちる場合
に生じていた磁気ヘッドのアームの熱的ソリ、ねじれ等
の変形による所謂サーマルオフトラック現象をなくして
上記欠点を解決し、情報の書込み・読出しの誤動作を極
力少くシ、信頼性を高めるようにするものである。The present invention solves the above-mentioned drawbacks by eliminating the so-called thermal off-track phenomenon caused by thermal warpage, twisting, and other deformation of the arm of the magnetic head that occurs when there is a difference in temperature between recording and reproducing information. The purpose is to minimize malfunctions in writing and reading information and improve reliability.
本発明の磁気ディスク装置は、磁気ディスク群と、該磁
気ディスク群を支持回転させるスピンドル回転機構と、
情報記録・再生用の複数の磁気ヘッドと、該磁気ヘッド
を保持し位置決めを行うキャリッジとを具備する磁気デ
ィスク装置に於て、前記情報記録・再生用の磁気ヘッド
は、磁気ヘッドのアーム長手方向及び板厚方向に対６し
て共に線対称に形成されたものとすることによシ、上記
従来の問題点を解決している。A magnetic disk device of the present invention includes a magnetic disk group, a spindle rotation mechanism that supports and rotates the magnetic disk group,
In a magnetic disk device equipped with a plurality of magnetic heads for recording/reproducing information and a carriage for holding and positioning the magnetic heads, the magnetic heads for recording/reproducing information are arranged in the longitudinal direction of the arm of the magnetic head. The above-mentioned problems of the prior art are solved by forming the plates symmetrically with respect to the plate thickness direction.
次に本発明の一実施例について第１図〜第３図を参照し
て説明する。第１図は本発明の一実施例である磁気ディ
スク装置の正面図を示し、第２図は第１図の本実施例に
使用される磁気ヘッドのアームの詳細図を示し、第３図
は第２図のＡ−Ａ線断面図を示す。Next, one embodiment of the present invention will be described with reference to FIGS. 1 to 3. FIG. 1 shows a front view of a magnetic disk device that is an embodiment of the present invention, FIG. 2 shows a detailed view of the arm of the magnetic head used in the embodiment of FIG. 1, and FIG. A sectional view taken along the line A-A in FIG. 2 is shown.
第１図を参照するに、スピン、ドル１は複数枚の磁気デ
ィスク２をほぼ平行に固定して搭載し、ハウジングベー
ス３．ハウジングベース４１Ｃ各々軸受（図示せず〕を
介して回転自在に取り付けられており、専用゛のモータ
（図示せず）Ｋよって駆動される。この磁気ディスク２
に対して、データ信号の書込み・読出しを行う磁気ヘッ
ド５（リードライトヘッド）および位置決め信号（サー
ボ信号）を記録してちるサーボディスク２ａからサーボ
信号を読出すためのサーホ゛ヘッド６とを搭載するキャ
リッジ７は、ハウジングペース３の上を磁気ディスク２
の中心方向く向かって直線的く往復運動を行う。このキ
ャリッジ７の往復運動を駆動するため、永久磁石によっ
て構成されるボイスコイルモータ８が設けられておシ、
ボイスコイルモータ８はフレーム９を介して、ハウジン
グペース４゜及びハウジングペース３に取シ付けられ、
キャリッジ７に設けられているコイル（図示せず）と共
働してキャリッジ７の往復運動を行う。Referring to FIG. 1, a spindle 1 has a plurality of magnetic disks 2 fixedly mounted on a housing base 3. Each housing base 41C is rotatably attached via a bearing (not shown) and is driven by a dedicated motor (not shown) K. This magnetic disk 2
A magnetic head 5 (read/write head) for writing and reading data signals and a servo head 6 for reading servo signals from the servo disk 2a for recording positioning signals (servo signals) are mounted on the servo disk 2a. The carriage 7 moves the magnetic disk 2 over the housing space 3.
performs linear reciprocating motion toward the center of the In order to drive the reciprocating motion of the carriage 7, a voice coil motor 8 composed of a permanent magnet is provided.
The voice coil motor 8 is attached to the housing space 4° and the housing space 3 via a frame 9,
The reciprocating motion of the carriage 7 is performed in cooperation with a coil (not shown) provided on the carriage 7.
これらの磁気ディスク２．キャリッジ？、＠気ヘッド５
．サーボヘッド６は、ハウジングペース３、ハウシング
ベース４．フレーム９１ボイス；イルモータ８及びカバ
ー（図示せず）とくよって覆われ、密封ケース内に収容
されている。These magnetic disks2. carriage? , @ki head 5
．． The servo head 6 includes a housing pace 3, a housing base 4. The frame 91 is covered with the motor 8 and a cover (not shown), and is housed in a sealed case.
第２図及び第３図を参照するに、本発明の一実施例を示
すＩＥＩ図に使用される磁気ヘッド５のアーム５ａ形状
は、アーム５ａの長手方向ｖ−■及び板厚方向Ｗ−Ｗに
対して共に線対称な構造となっている。Referring to FIGS. 2 and 3, the shape of the arm 5a of the magnetic head 5 used in the IEI diagram showing one embodiment of the present invention is as follows: Both have a line-symmetrical structure.
上述のように構成された磁気ディスク装置は次のように
動作する。モータによって駆動されて磁気ディスク２が
スピンドルｌと共に回転しているとき、上位装置から位
置決め指令を受けるとキャリッジ７に位置決め制御回路
（図示せず）に指示されてシーク動作を行い、指令所定
＆置に於て磁気ヘッド５にて情報の記録或いは再生を行
う。従って、情報の記録時と再生時の密封ケース内の温
度及び、磁気ヘッド５の温度は使用環境温度差及び、篭
−夕によってスピンドルｌが駆動された時間の相異によ
る温度差により大きく異なっている場合がおる。The magnetic disk device configured as described above operates as follows. When the magnetic disk 2 is driven by the motor and rotates together with the spindle l, when a positioning command is received from a host device, the carriage 7 is instructed by a positioning control circuit (not shown) to perform a seek operation and perform a seek operation according to the command. At this time, information is recorded or reproduced using the magnetic head 5. Therefore, the temperature inside the sealed case and the temperature of the magnetic head 5 when recording and reproducing information vary greatly due to the temperature difference in the usage environment and the temperature difference due to the difference in the time during which the spindle l is driven by the cage. There are cases where there are.
本発明の実施例では、アーム５ａの形状がアーム５ａの
長手方向ｖ−ｖ及び板厚方向Ｗ−Ｗに対して共に線対称
な構造となっている為、磁気ヘッド５はアーム５ａの熱
的ソリ、ねじれの変形が発生せず、情報の記録時と再生
時とでの温度差が大きい場合くも、磁気ヘッドの熱的変
形く起因するサーマルオフトラック現象が生じな（なシ
、情報の記録・再生に於ける誤動作が少くなるものであ
る。In the embodiment of the present invention, the shape of the arm 5a is symmetrical with respect to both the longitudinal direction v-v and the thickness direction WW of the arm 5a, so the magnetic head 5 is Even if no warping or twisting deformation occurs, and there is a large temperature difference between recording and reproducing information, the thermal off-track phenomenon caused by thermal deformation of the magnetic head will not occur. - Malfunctions during playback are reduced.
なお、アーム５ａの上面に信号線包含用フラットケーブ
ルを配置する場合には、アーム５ａの下面にも同一の信
号線包含用フラットケーブルを設け、アーム５Ｒの板厚
方向く対して線対称構造とすることが望ましいことはい
うまでもない。Note that when a flat cable for signal line inclusion is arranged on the upper surface of arm 5a, the same flat cable for signal line inclusion is also provided on the lower surface of arm 5a, creating a line-symmetrical structure in the thickness direction of arm 5R. Needless to say, it is desirable to do so.
本発明は以上説明したように、磁気ヘッドのアームを長
手方向及び板厚方向共に線対称な形状とするととくよシ
、従来、情報の記録時と再生時とで温度差がある場合く
生じる所謂サーマルオフトラック現象をなくシ、その結
果情報の書込み・読出しに於ける誤動作を少くすること
ができるという効果がある。As explained above, the present invention is advantageous in that when the arm of a magnetic head is made in a line-symmetrical shape in both the longitudinal direction and the plate thickness direction, so-called thermal damage occurs when there is a temperature difference between recording and reproducing information. This has the effect of eliminating the off-track phenomenon and, as a result, reducing malfunctions in writing and reading information.
【図面の簡単な説明】
第１図は、本発明の一実施例を示す正面図、第２図は、
本発明の一実施例に使用される磁気ヘッドのアームの詳
細図、
第３図は、ｔｌｃ２図ｏＡ−Ａｌ１＜沿う断面図、第４
図は、従来の磁気ヘッドのアームの詳細図、そして、第
５図は、第４図のＢ−Ｂ線に沿う断面図である。
ｌ・・・アーム ２・・・磁気ディスク５・・
・磁気ヘッド ７・・・中ヤリッジ１００・・・ア
ーム[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is a front view showing an embodiment of the present invention, and FIG. 2 is a front view showing an embodiment of the present invention.
A detailed view of the arm of the magnetic head used in one embodiment of the present invention.
This figure is a detailed view of an arm of a conventional magnetic head, and FIG. 5 is a sectional view taken along the line BB in FIG. 4. l...Arm 2...Magnetic disk 5...
・Magnetic head 7...Middle head 100...Arm
Claims (1)
スピンドル回転機構と、情報記録再生用の複数の磁気ヘ
ッドと、該磁気ヘッドを保持し位置決めを行うキャリッ
ジを具備する磁気ディスク装置において、前記情報記録
再生用の磁気ヘッドは、該磁気ヘッドのアームの長手方
向及び板厚方向に対して共に線対称に形成されているこ
とを特徴とする磁気ディスク装置。A magnetic disk device comprising a group of magnetic disks, a spindle rotation mechanism that supports and rotates the group of magnetic disks, a plurality of magnetic heads for recording and reproducing information, and a carriage that holds and positions the magnetic heads. A magnetic disk device characterized in that a magnetic head for reproduction is formed axisymmetrically with respect to both the longitudinal direction and the plate thickness direction of an arm of the magnetic head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18234484A JPS6161223A (en) | 1984-08-31 | 1984-08-31 | Magnetic disk device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18234484A JPS6161223A (en) | 1984-08-31 | 1984-08-31 | Magnetic disk device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6161223A true JPS6161223A (en) | 1986-03-29 |
Family
ID=16116663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18234484A Pending JPS6161223A (en) | 1984-08-31 | 1984-08-31 | Magnetic disk device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6161223A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5014145A (en) * | 1987-07-10 | 1991-05-07 | Hitachi, Ltd. | Head arm structure mounting a circuit element in a magnetic disc device |
-
1984
- 1984-08-31 JP JP18234484A patent/JPS6161223A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5014145A (en) * | 1987-07-10 | 1991-05-07 | Hitachi, Ltd. | Head arm structure mounting a circuit element in a magnetic disc device |
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