JPH03144972A - Magnetic disk device - Google Patents

Magnetic disk device

Info

Publication number
JPH03144972A
JPH03144972A JP28352989A JP28352989A JPH03144972A JP H03144972 A JPH03144972 A JP H03144972A JP 28352989 A JP28352989 A JP 28352989A JP 28352989 A JP28352989 A JP 28352989A JP H03144972 A JPH03144972 A JP H03144972A
Authority
JP
Japan
Prior art keywords
magnetic disk
magnetic
head
magnetic head
movable ends
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
Application number
JP28352989A
Other languages
Japanese (ja)
Inventor
Tsutomu Ota
勉 太田
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.)
Seiko Epson Corp
Original Assignee
Seiko Epson 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 Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP28352989A priority Critical patent/JPH03144972A/en
Publication of JPH03144972A publication Critical patent/JPH03144972A/en
Pending legal-status Critical Current

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  • Moving Of Heads (AREA)

Abstract

PURPOSE:To make the constitution of a magnetic disk device simple and compact by composing a magnetic head positioning mechanism of parallel supporting springs. CONSTITUTION:A magnetic head 3 is held through a head suspension 4 to movable ends 5 of the parallel supporting springs. Fixed ends 7 and the movable ends 5 of the parallel supporting springs are engaged by two parallel supporting springs 6 and permanent magnets 8 are fixed at the movable ends 5 and constitute a magnetic movable type linear actuator together with driving coils 9 arranged while being faced each other. Since a prescribed control current flows to the coils 9, driving force is generated in the permanent magnets 8 and the movable ends 5 are moved only with a prescribed amount. The, the head 3 is moved and set at the prescribed position of a disk 1 through the suspension 4. Thus, since a serial arrangement for the magnetic head positioning mechanism such as head 3 - suspension 4 - movable ends 5 - springs 6 - fixed ends 7 is geometrically turned at the movable ends 5, a plane space can be reduced.

Description

【発明の詳細な説明】 [産業上の利用分野コ 本発明は、コンピュータ用記憶装置として広く使われて
いる磁気ディスク装置、特に3.5インチ以下の小型磁
気ディスク装置の磁気ヘッド位を決め機構の構造に関す
るものである。
DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a magnetic head positioning mechanism of a magnetic disk device widely used as a storage device for computers, particularly a small magnetic disk device of 3.5 inches or less. It is related to the structure of

[従来の技術] 磁気ディスク装置はその特徴である高容量・高速・高信
頼性により急激に使われるようになり最近ではパーソナ
ルコンピュータへの搭載も一般的に行なわれるようにk
ってきている。小型化。高容量化の要求に対し磁気ディ
スク・磁気ヘッドなど主要コンポーネントの改良が重ね
られ3.5インチ型で40MBの容量を持つに至りいわ
ゆるラップトツブ型コンピュータと呼ばれるポータプル
コンピュータにも使用されるようになってきた。このよ
うに磁気ディスク装置は小型軽量化されてきてはいるが
真に携帯性に優れるポータプルコンピュータを実現する
為にはさらに画期的な構造が考案実現されなげればなら
ない。
[Prior Art] Magnetic disk drives have rapidly come into use due to their characteristics of high capacity, high speed, and high reliability, and recently they have become commonly installed in personal computers.
It's coming. Miniaturization. In response to the demand for higher capacity, major components such as magnetic disks and magnetic heads were improved, and a 3.5-inch model with a capacity of 40 MB was developed, which is now being used in portable computers called laptop computers. Ta. As described above, magnetic disk drives have become smaller and lighter, but in order to realize a portable computer with truly excellent portability, an even more innovative structure must be devised and realized.

従来の磁気ディスク装置の構造は以下に述べるようなも
のであった。情報を記録する磁気ディスクは必要とされ
る記憶容量に応じて通常1枚あるいは2枚使われる。磁
気ディスクは回転モーターに係合されるスピンドルハブ
に装着し3000rpm程度の回転数で回転させる。一
方磁気ディスク表面に情報を記録・再生する為の磁気ヘ
ッドは、7磁気ヘッド位置決め機構によって使持され磁
気ディスクの情報記録領域上を移動・位置決めされ所定
のトラック上に情報を記録したり、必要とする情報を再
生したりする。磁気ヘッド位置決め機構には従来から直
線運動型と回転運動型の2種類が使用されているが最近
の装置小型化に伴ない回転運動型が多く使用されている
。第2図(α)及び(b)はこの回転運動型磁気ヘッド
位置決め機構によって成る磁気ディスク装置の構造を示
したものである。
The structure of a conventional magnetic disk device is as described below. Generally, one or two magnetic disks are used to record information, depending on the required storage capacity. The magnetic disk is mounted on a spindle hub that is engaged with a rotary motor and rotated at a rotation speed of about 3000 rpm. On the other hand, the magnetic head for recording and reproducing information on the surface of the magnetic disk is used by the 7 magnetic head positioning mechanism to move and position itself over the information recording area of the magnetic disk, recording information on a predetermined track, and recording information on the required track. and play back information. Conventionally, two types of magnetic head positioning mechanisms have been used: a linear motion type and a rotary motion type, but the rotary motion type is increasingly being used as devices have become smaller in recent years. FIGS. 2(α) and 2(b) show the structure of a magnetic disk device comprising this rotary movement type magnetic head positioning mechanism.

磁気ディスク1はスピンドルモータ2に固持され回転さ
せられる。磁気ヘッド5は回転軸11を中心として回転
するスイングアーム10にヘッドサスベンジ1ン4を介
して担持される。またスイングアーム10はモータプー
リ13に巻き付けたスチールベルト12を介してヘッド
駆動モータ14に係合されている。
A magnetic disk 1 is firmly supported by a spindle motor 2 and rotated. The magnetic head 5 is supported by a swing arm 10 which rotates about a rotation axis 11 via a head suspension 1 4. Further, the swing arm 10 is engaged with a head drive motor 14 via a steel belt 12 wrapped around a motor pulley 13.

以上の様な構成においてヘッド駆動モータ14を所定角
度だけ回転させるとモータプーリ13も同じ角度だけ回
転する。この時モータプーリ13に巻きつげたスチール
ベルト12が回転角度に応じた量だけ繰り出される。ス
イングアーム10はスチールベルト12に係合されてい
る為スチールベルト12の繰り出し量に応じた角度分だ
け回転軸11を中心に回転しヘッドサスペンション4を
介して磁気ヘッド3を磁気ディスク10所定位置に移動
位置決めする事ができる。
In the above configuration, when the head drive motor 14 is rotated by a predetermined angle, the motor pulley 13 is also rotated by the same angle. At this time, the steel belt 12 wound around the motor pulley 13 is let out by an amount corresponding to the rotation angle. Since the swing arm 10 is engaged with the steel belt 12, it rotates around the rotating shaft 11 by an angle corresponding to the amount of extension of the steel belt 12, and moves the magnetic head 3 to a predetermined position on the magnetic disk 10 via the head suspension 4. Can be moved and positioned.

[発明が解決しようとする課題] しかし前述の如き従来技術の磁気ディスク装置において
は、その装置の小型化を目的として様々な工夫・改善が
威されてきたにもかかわらず、昨今の軽薄短小化の要求
に対しては基本構成要素の配置制約から限界があり、こ
たえられないという課題を有する。
[Problems to be Solved by the Invention] However, in the magnetic disk devices of the prior art as described above, although various efforts and improvements have been made with the aim of making the devices smaller, the recent trend toward lighter, thinner, and smaller devices. There are limits to the requirements due to the layout constraints of the basic components, and there is a problem that it is impossible to meet these demands.

そこで本発明はこのような課題を解決しようとするもの
で、その目的とするところは磁気ディスク装置の小型化
の要求にこたえられる超小型み磁気ディスク装置を提供
するところにある。
SUMMARY OF THE INVENTION The present invention aims to solve these problems, and its purpose is to provide an ultra-compact magnetic disk device that can meet the demand for miniaturization of magnetic disk devices.

[課題を解決する為の手段] 本発明の磁気ディスク装置は、情報を記録する為の磁気
ディスクとこれを回転させる為のモータ及び磁気ディス
クに情報を記録再生する為の磁気ヘッドとこれを磁気デ
ィスク上で所定の位置に移動・停止させる為の磁気ヘッ
ド位置決め機構とを有する磁気ディスク装置において前
記磁気ヘッド位置決め機構が平行はね支持によって構成
される事を特徴とする。
[Means for Solving the Problems] A magnetic disk device of the present invention includes a magnetic disk for recording information, a motor for rotating the magnetic disk, a magnetic head for recording and reproducing information on the magnetic disk, and a magnetic head for recording and reproducing information on the magnetic disk. A magnetic disk drive having a magnetic head positioning mechanism for moving and stopping at a predetermined position on a disk is characterized in that the magnetic head positioning mechanism is configured by parallel spring support.

[実施例] 以下に本発明の実施例について図面を用いて詳細に説明
する。第1図(α)及び(b 、)は本発明の実施例の
磁気ディスク装置の構成を示す図である。磁気ディスク
1はスピンドルモータ2に固持され回転させられる。磁
気ヘッド3は平行支持ばね可動端5にヘッドサスペンシ
ョン4を介して担持される。平行支持ばね固定端7と平
行支持ばね可動端5は2枚の平行支持ばね6によって係
合され、平行支持はね可動端5には永久磁石8が固定さ
れ対向して配置される駆動コイル9とともに磁石可動型
リニアアクチエエータを構成する。駆動コイル9に所定
の制御電流を流す事によって永久磁石8に駆動力が生じ
平行支持ばね可動端5が所定量だけ移動しヘッドサスペ
ンション4を介して磁気ヘッド5を磁気ディスク1の所
定位置に移動・位置決めする事ができる。平行支持ばね
の特徴は構造がf!illである上に、位置の再現精度
が高いという事であり近年ではコンパクトディスク装置
の光ピツクアップ対物レンズ支持機構などに多く使われ
ている。本実施例の場合は、上述の平行支持はねの長所
を効果的に利用し磁気ディスク装置の小型化を実現して
いる。つまり磁気ヘッド−ヘッドサスペンション−平行
支持ばね可動端一平行支持はね一平行支持はね固定端と
いう一連の磁気ヘッド位置決め機構の配置を平行支持ば
ね可動端で幾何学的に折り返すようにする事によって平
面的スペースを小さくする事ができた。
[Example] Examples of the present invention will be described in detail below with reference to the drawings. FIGS. 1(α) and 1(b) are diagrams showing the configuration of a magnetic disk device according to an embodiment of the present invention. A magnetic disk 1 is firmly supported by a spindle motor 2 and rotated. The magnetic head 3 is supported by a parallel support spring movable end 5 via a head suspension 4. The parallel support spring fixed end 7 and the parallel support spring movable end 5 are engaged with each other by two parallel support springs 6, and a permanent magnet 8 is fixed to the parallel support spring movable end 5 and a driving coil 9 is disposed facing each other. Together, they form a movable magnet linear actuator. By applying a predetermined control current to the drive coil 9, a driving force is generated in the permanent magnet 8, and the parallel support spring movable end 5 moves by a predetermined amount, moving the magnetic head 5 to a predetermined position on the magnetic disk 1 via the head suspension 4.・Can be positioned. The feature of the parallel support spring is its structure f! In addition to being an illumination device, it also has high position reproducibility, and in recent years has been widely used in optical pickup objective lens support mechanisms of compact disc devices. In the case of this embodiment, the advantages of the above-mentioned parallel support springs are effectively utilized to realize miniaturization of the magnetic disk device. In other words, the arrangement of the magnetic head positioning mechanism, which is a series of magnetic head, head suspension, parallel support spring movable end, parallel support spring, and parallel support spring fixed end, is geometrically folded back at the parallel support spring movable end. We were able to reduce the flat space.

[発明の効果コ 以上説明したように磁気ヘッド位置決め機構を平行支持
ばねによって構成したので、磁気ディスク装置の構造を
簡素化・小型化する事が可能となり、ポータプルコンビ
エータに搭載可能な超小型軽量の磁気ディスク装置を提
供する事ができるという効果を有する。
[Effects of the invention] As explained above, since the magnetic head positioning mechanism is constructed using parallel support springs, the structure of the magnetic disk device can be simplified and miniaturized, making it ultra-compact and lightweight that can be mounted on a portable combinator. The present invention has the advantage that it is possible to provide a magnetic disk device with the following characteristics.

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

第1図(α)は本発明の磁気ディスク装置の実施例を示
す平面図。第1図(b)は本発明の磁気ディスク装置の
実施例を示す断面図。 第2図(α)は従来の磁気ディスク装置の構造を示す平
面図。第2図(b)は従来の磁気ディスク装置の構造を
示す断面図。 1・・・・・・・・・磁気ディスク 2・・・・・・・・・スピンドルモータ6・・・・・・
・・・磁気ヘッド ・・・・・・・・・ヘッドサスペンション・・・・・・
・・・平行支持はね可動端・・・・・・・・・平行支持
はね ・・・・・・・・・平行支持ばね固定端・・・・・・・
・・永久磁石 ・・・・・・・・・駆動コイル ・・・・・・・・・スイングアーム ・・・・・・・・・回転軸 ・・・・・・・・・スチールベルト ・・・・・・・・・モータプーリ ・・・・・・・・・ヘッド駆動モータ
FIG. 1(α) is a plan view showing an embodiment of the magnetic disk device of the present invention. FIG. 1(b) is a sectional view showing an embodiment of the magnetic disk device of the present invention. FIG. 2(α) is a plan view showing the structure of a conventional magnetic disk device. FIG. 2(b) is a sectional view showing the structure of a conventional magnetic disk device. 1...Magnetic disk 2...Spindle motor 6...
・・・Magnetic head・・・・・・Head suspension・・・・・・
...Parallel support spring movable end...Parallel support spring...Parallel support spring fixed end...
・・Permanent magnet・・・Drive coil・・・Swing arm・・Rotating shaft・・・Steel belt・・・・...Motor pulley ...Head drive motor

Claims (1)

【特許請求の範囲】[Claims] 情報を記録する為の磁気ディスクとこれを回転させる為
のモータ及び磁気ディスクに情報を記録再生する為の磁
気ヘッドとこれを磁気ディスク上で所定の位置に移動・
停止させる為の磁気ヘッド位置決め機構とを有する磁気
ディスク装置において前記磁気ヘッド位置決め機構が平
行ばね支持によって構成される事を特徴とする磁気ディ
スク装置。
A magnetic disk for recording information, a motor for rotating it, a magnetic head for recording and reproducing information on the magnetic disk, and moving it to a predetermined position on the magnetic disk.
1. A magnetic disk device comprising a magnetic head positioning mechanism for stopping the magnetic head, wherein the magnetic head positioning mechanism is configured by parallel spring support.
JP28352989A 1989-10-31 1989-10-31 Magnetic disk device Pending JPH03144972A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP28352989A JPH03144972A (en) 1989-10-31 1989-10-31 Magnetic disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP28352989A JPH03144972A (en) 1989-10-31 1989-10-31 Magnetic disk device

Publications (1)

Publication Number Publication Date
JPH03144972A true JPH03144972A (en) 1991-06-20

Family

ID=17666716

Family Applications (1)

Application Number Title Priority Date Filing Date
JP28352989A Pending JPH03144972A (en) 1989-10-31 1989-10-31 Magnetic disk device

Country Status (1)

Country Link
JP (1) JPH03144972A (en)

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