JPS6288183A - Magnetic disk device - Google Patents

Magnetic disk device

Info

Publication number
JPS6288183A
JPS6288183A JP22920785A JP22920785A JPS6288183A JP S6288183 A JPS6288183 A JP S6288183A JP 22920785 A JP22920785 A JP 22920785A JP 22920785 A JP22920785 A JP 22920785A JP S6288183 A JPS6288183 A JP S6288183A
Authority
JP
Japan
Prior art keywords
carriage
head
magnetic
magnetic disk
coil
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
JP22920785A
Other languages
Japanese (ja)
Other versions
JPH0559509B2 (en
Inventor
Masayuki Kimura
雅幸 木村
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Priority to JP22920785A priority Critical patent/JPS6288183A/en
Publication of JPS6288183A publication Critical patent/JPS6288183A/en
Publication of JPH0559509B2 publication Critical patent/JPH0559509B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Supporting Of Heads In Record-Carrier Devices (AREA)
  • Moving Of Heads (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)

Abstract

PURPOSE:To prevent a thermal off-track phenomenon caused by the heating of a coil, and to eliminate a malfunction at the time of recording and reproduction, by providing a heat insulating member between a magnetic head and a carriage. CONSTITUTION:When a magnetic disk 2 is rotating together with a spindle 1, a carriage 7 executes a seek operation, based on a command, and information is recorded or reproduced by a magnetic head 5. Accordingly, sometimes the temperature of the carriage 7 is greatly different due to the difference of heating values of the coil 10 at the times of recording and reproduction. Therefore, between the heat 5 and the carriage 7, a head arm holder 6 is provided, and the heat insulating member 11 is provided so that heating of the coil 10 is not brought to heat transmission to the head 5. Accordingly, no difference is generated in the thermal expansion quantity of the head arm of each magnetic head 5, a thermal off-track caused by the heating of the coil is not generated, and when information is recorded and reproduced, the malfunction is prevented.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は磁気ディスク装置に関し、特に情報記録・再生
用の磁気ヘッド群のキャリッジへの取シ付は構造を改良
した磁気ディスク装置に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a magnetic disk device, and more particularly to a magnetic disk device in which the structure of mounting a group of magnetic heads for recording and reproducing information on a carriage is improved.

〔従来の技術〕[Conventional technology]

従来、この種の磁気ディスク装置においては、磁気ヘッ
ド群のキャリ、ジへの取シ付けは、ヘッドアームブロッ
クを介して磁気ヘッドのへラドアーム端面とキャリッジ
の端面を各々直接へラドアームプロ、りに押し幽て固定
する構造となっていた。
Conventionally, in this type of magnetic disk drive, the magnetic head group was attached to the carriage by pushing the end face of the head arm of the magnetic head and the end face of the carriage directly onto the head arm block through the head arm block. It had a structure that kept it in place.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

上述した従来の磁気ディスク装置は、キャリッジに取り
付は固定されているコイルの発熱カヘッドアームホルダ
を経由して磁気ヘッド群に伝達されるが、磁気ヘッド群
の各々のへラドアームに伝導される伝熱量が異なる為、
ヘッドアームの熱膨張量が各々異なシ、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ある。
In the above-mentioned conventional magnetic disk device, the heating power of the coil fixedly attached to the carriage is transmitted to the magnetic head group via the head arm holder, and is conducted to the magnetic head arm of each magnetic head group. Because the amount of heat transfer is different,
Since the amount of thermal expansion of each head arm is different, a so-called thermal off-track phenomenon occurs, resulting in malfunctions in writing and reading information.

〔問題点を解決するだめの手段〕[Failure to solve the problem]

本発明の磁気ディスク装置は、磁気ディスク群と、前記
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
、前記磁気ディスク群に情報の記録・再生を行う磁気ヘ
ッド群と、前記磁気ヘッド群を保持固定するヘッドアー
ムホルダと、前記へラドアームホルダを保持し位置決め
を行うキャリッジとを具備する磁気ディスク装置におい
て、前記磁気ヘッド群と前記キャリッジとの間に断熱部
材を有している。
The magnetic disk device of the present invention includes a magnetic disk group, a spindle rotation mechanism for supporting and rotating the magnetic disk group, a magnetic head group for recording and reproducing information on the magnetic disk group, and holding and fixing the magnetic head group. The magnetic disk drive includes a head arm holder that holds and positions the head arm holder, and a heat insulating member is provided between the magnetic head group and the carriage.

〔実施例〕〔Example〕

次に本発明の一実施例について図面を参照して説明する
Next, an embodiment of the present invention will be described with reference to the drawings.

第1図は本発明の一実施例である磁気ディスク装置の局
部破断正面図、第2図は第1図中のキャリ、ジ近傍を詳
細に示す正面断面図、第3図は第2図の側面図である。
FIG. 1 is a partially cutaway front view of a magnetic disk drive according to an embodiment of the present invention, FIG. 2 is a front cross-sectional view showing details of the vicinity of the carrier and jig in FIG. 1, and FIG. FIG.

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、ハウジンクベース4に各々軸受(図示せず)を介
して回転自在に取り付けられてお夛、専用のモータ(図
示せず)によって駆動される。
Referring to FIG. 1, a spindle 1 has a plurality of magnetic disks 2 mounted thereon in a substantially parallel manner, and is rotatably attached to a housing base 3 and a housing base 4 via bearings (not shown). It is driven by a dedicated motor (not shown).

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)を記録しであるサーボディス
ク2aからサーボ信号を胱出すためのサーボヘッド5a
とを、断熱部材11を有するへ、ドアームホルダ6を介
して塔載するキャリ、シフは、リニアガイド(図示せず
)上を磁気ディスク2の中心方向に向かって直線的に往
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磁気回路8がフレー
ム9を介してハウジングベース4、及びハウジングベー
ス3に取り付けられ、キャリッジ7に設けられているコ
イル1oと共働してキャリッジ7の往復運動を行う。
A magnetic head 5 (read/write head) writes and reads data signals to and from the magnetic disk 2, and a servo head 5a records positioning signals (servo signals) and outputs servo signals from the servo disk 2a.
The carrier and the shifter, which are mounted on the door arm holder 6 and having the heat insulating member 11, reciprocate linearly toward the center of the magnetic disk 2 on a linear guide (not shown). In order to drive the reciprocating motion of the carriage 7, a magnetic circuit 8 constituted by a permanent magnet is attached to the housing base 4 and the housing base 3 via a frame 9, and cooperates with a coil 1o provided on the carriage 7. The carriage 7 moves back and forth.

これらの磁気ディスク2、キャリッジ7、磁気ヘラ)”
5は、ハウジンクベース4、ハウジンクベース3、フレ
ーム9、磁気回路8、及びカバ(図示せず)とによって
覆われ、密封ケース内に収容されている。
These magnetic disk 2, carriage 7, magnetic spatula)
5 is covered with a housing base 4, a housing base 3, a frame 9, a magnetic circuit 8, and a cover (not shown), and is housed in a sealed case.

第2図を参照するに、磁気ヘッド5を固定するヘッドア
ームホルダ6には断熱部材11が設けられており、キャ
リッジ7に固定されているコイル10の発熱が、磁気ヘ
ッド5に伝達し難い構造となっている。
Referring to FIG. 2, the head arm holder 6 that fixes the magnetic head 5 is provided with a heat insulating member 11, which has a structure that makes it difficult for the heat generated by the coil 10 fixed to the carriage 7 to be transmitted to the magnetic head 5. It becomes.

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1と共に回転しているとき、上位ifから位
置決め指令を受けると千ヤリッジ7は、位置決め制御回
llI?(図示せず)に指示されてシーク動作を行い、
指令所定位置において、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とのコ
イル10の発熱量の相異によυ千ヤリッジの温度が大き
く異なる場合がある。
The magnetic disk device configured as described above operates as follows. When the magnetic disk 2 is being driven by the motor and rotating together with the spindle 1, upon receiving a positioning command from the upper if, the carriage 7 executes the positioning control cycle llI? (not shown) performs a seek operation,
At the commanded predetermined position, the magnetic head 5 records or reproduces information. Therefore, due to the difference in the amount of heat generated by the coil 10 when recording and reproducing information, the temperature of the υ thousand carriages may vary greatly.

この実施例では、磁気ヘッド5とキャリッジ7との間に
ヘッドアームホルダ6を設け、ヘッドアームホルダ6に
は断熱部材11を設ける構造となっているため、キャリ
ッジ7に固定されているコイル10の発熱が断熱部材1
1の働きによシ磁気へ、ド5に伝熱せず、情報の記録時
と再生時とでキャリッジ7の温度が大きく異なる場合に
も、コイル10の発熱による各々の磁気ヘッド5のへラ
ドアームの熱膨張量に差異が生じることなく、コイルの
発熱に起因するサーマルオフトラ、り現象が発生せず、
情報の記録・再生における誤動作が少くなるという効果
がある。
In this embodiment, a head arm holder 6 is provided between the magnetic head 5 and the carriage 7, and the head arm holder 6 is provided with a heat insulating member 11, so that the coil 10 fixed to the carriage 7 is Heat insulating member 1
Even if the temperature of the carriage 7 differs greatly between recording and reproducing information, the heat is not transferred to the magnetic head 5 due to the action of the coil 10. There is no difference in the amount of thermal expansion, and there is no thermal off-trace phenomenon caused by heat generation in the coil.
This has the effect of reducing malfunctions during information recording and reproduction.

なお、断熱部材11をキャリッジ7の端面或いは、磁気
へ、ド5のへ、ドアーム端面に設けても本実施例と同等
の効果があることはいうまでもないO 〔発明の効果〕 以上説明したように本発明は、磁気ヘッドとキャリッジ
との間に断熱部材を設けることにより、コイルの発熱の
影響を受けることなく、コイルの発熱に起因するサーマ
ルオフトンックが皆無となシ、情報の記録・再生におけ
る誤動作を少くできる効果がめる。
It goes without saying that even if the heat insulating member 11 is provided on the end face of the carriage 7, on the magnetic side, on the door 5, or on the end face of the door arm, the same effect as this embodiment can be obtained. According to the present invention, by providing a heat insulating member between the magnetic head and the carriage, information can be recorded without being affected by the heat generated by the coil, and with no thermal off-tock caused by the heat generated by the coil.・It has the effect of reducing malfunctions during playback.

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

第1図は本発明の一実施例を示す局部破断正面図、第2
図、第3図は第1図の本実施例に使用されるキャリッジ
近傍を詳細に示す正面断面図、側面図である。 1・・・・・・スピンドル、2・・・・・・磁気ティス
フ、5・・・・・・磁気ヘッド、6・・・・・・へ、ド
アームホルダ、7・・・・・・千ヤリッジ、11・・・
・・・断熱部制。 奉1 回 叢2回  第3図
FIG. 1 is a partially cutaway front view showing one embodiment of the present invention, and FIG.
3 are a front sectional view and a side view showing in detail the vicinity of the carriage used in this embodiment of FIG. 1. 1...Spindle, 2...Magnetic disk, 5...Magnetic head, 6...To, door arm holder, 7...Thousand ridges, 11...
...Insulated department system. Book 1 Series 2 Figure 3

Claims (1)

【特許請求の範囲】[Claims] 磁気ディスク群と、前記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、前記磁気ディスク群に情報の
記録・再生を行う磁気ヘッド群と、前記磁気ヘッド群を
保持固定するヘッドアームホールダと、前記ヘッドアー
ムホルダ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おいて、前記磁気ヘッド群と前記
キャリッジとの間に断熱部材を設けたことを特徴とする
磁気ディスク装置。
A magnetic disk group, a spindle rotation mechanism for supporting and rotating the magnetic disk group, a magnetic head group for recording and reproducing information on the magnetic disk group, a head arm holder for holding and fixing the magnetic head group, and the head. 1. A magnetic disk device comprising a carriage that holds and positions an arm holder, characterized in that a heat insulating member is provided between the magnetic head group and the carriage.
JP22920785A 1985-10-14 1985-10-14 Magnetic disk device Granted JPS6288183A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22920785A JPS6288183A (en) 1985-10-14 1985-10-14 Magnetic disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22920785A JPS6288183A (en) 1985-10-14 1985-10-14 Magnetic disk device

Publications (2)

Publication Number Publication Date
JPS6288183A true JPS6288183A (en) 1987-04-22
JPH0559509B2 JPH0559509B2 (en) 1993-08-31

Family

ID=16888495

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22920785A Granted JPS6288183A (en) 1985-10-14 1985-10-14 Magnetic disk device

Country Status (1)

Country Link
JP (1) JPS6288183A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63311674A (en) * 1987-06-12 1988-12-20 Fujitsu Ltd Magnetic head positioner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63311674A (en) * 1987-06-12 1988-12-20 Fujitsu Ltd Magnetic head positioner

Also Published As

Publication number Publication date
JPH0559509B2 (en) 1993-08-31

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