JPH06302153A - Magnetic disk device - Google Patents

Magnetic disk device

Info

Publication number
JPH06302153A
JPH06302153A JP8441593A JP8441593A JPH06302153A JP H06302153 A JPH06302153 A JP H06302153A JP 8441593 A JP8441593 A JP 8441593A JP 8441593 A JP8441593 A JP 8441593A JP H06302153 A JPH06302153 A JP H06302153A
Authority
JP
Japan
Prior art keywords
magnetic disk
disk
air bearing
magnetic
outer peripheral
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
JP8441593A
Other languages
Japanese (ja)
Inventor
Yasumasa Kuroba
康雅 黒羽
Tomoyoshi Yamada
朋良 山田
Takahiro Imamura
孝浩 今村
Toru Kimihira
徹 公平
Shinji Koganezawa
新治 小金沢
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP8441593A priority Critical patent/JPH06302153A/en
Publication of JPH06302153A publication Critical patent/JPH06302153A/en
Pending legal-status Critical Current

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  • Supporting Of Heads In Record-Carrier Devices (AREA)

Abstract

PURPOSE:To prevent the rotation run-out in a vertical direction of a magnetic disk surface generated by the degradation in the rigidity of air bearings for supporting a spindle with a reduction in the size and thickness of the device by providing the device with the air bearings in the state of supporting the bearings with elastic supporting members. CONSTITUTION:The air bearings 22 in the form of holding the front and rear surfaces of the outer peripheral part of a magnetic disk 1 are disposed in the prescribed positions at least at one point in the outer peripheral part of the disk 1 in the state of supporting the air bearings by the elastic supporting members 23, etc. The disk 1 is rotated by a spindle part 21, by which the air flow generated by rotation of the disk 1 is blown to the front and rear surfaces of the disk 1 and the upper and lower spacings of the bearings 22 respectively facing these surfaces. A dynamic pressure is generated in the upper and lower spacings by this air pressure, by which the dynamic air bearings are formed and, therefore, the rotation run-out in the axial direction of the disk 1 passing the inside of the dynamic air bearings is suppressed. Then, the floating posture of the magnetic head 10 floating on the disk 1 surface is stabilized and the stable recording and reproducing operations are realized.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明はコンピュータシステムの
外部記憶装置として用いられる磁気ディスク装置に係
り、特に磁気ディスク装置の小型化に伴って生じる磁気
ディスク面のアキシャル方向への回転振れを防止する装
置構成に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic disk device used as an external storage device of a computer system, and more particularly to a device for preventing rotational runout of a magnetic disk surface in the axial direction which is caused by miniaturization of the magnetic disk device. It is related to the configuration.

【0002】近年、コンピュータシステムにおける情報
処理量の増大により、磁気ディスク装置への記録情報も
増加し、大容量・小型化が進められている。ところが磁
気ディスク装置の小型化により、磁気ディスクを回転さ
せるスピンドル部における組立て精度、ボールベアリン
グの剛性等の低下によって回転する磁気ディスク面がア
キシャル方向に振れる現象が生じ、該磁気ディスク面に
対して記録・再生を行う磁気ヘッドの浮上姿勢が不安定
になる傾向がある。このため、そのような磁気ディスク
面のアキシャル方向への回転振れを防止して、磁気ディ
スク面に対する磁気ヘッドの浮上姿勢を安定化させるこ
とが必要である。
In recent years, due to an increase in the amount of information processing in a computer system, the amount of information recorded on a magnetic disk device also increases, and a large capacity and a small size are being promoted. However, due to the downsizing of the magnetic disk device, a phenomenon in which the surface of the rotating magnetic disk swings in the axial direction due to a decrease in assembly accuracy in the spindle portion for rotating the magnetic disk, a decrease in rigidity of the ball bearing, etc.・ The flying attitude of the magnetic head for playback tends to be unstable. For this reason, it is necessary to prevent such rotational shake of the magnetic disk surface in the axial direction and stabilize the flying posture of the magnetic head with respect to the magnetic disk surface.

【0003】[0003]

【従来の技術】従来の磁気ディスク装置は図5(a) の要
部平面図及び図5(b) の要部側断面図に示すように、磁
気ディスク1がスピンドルハブ2を介してスピンドル3
に固定され、該スピンドル3は上下に2つのボールベア
リング4a, 4bを介してベース体5に回転可能に支持され
ている。また前記磁気ディスク1はスピンドル3の周囲
のスピンドルハブ2側に設けたロータ7とこれと対応す
るベース体5側に設けたステータ6とで構成される回転
モータによって回転している。
2. Description of the Related Art In a conventional magnetic disk drive, as shown in a plan view of a main part of FIG. 5A and a side sectional view of the main part of FIG. 5B, a magnetic disk 1 is connected to a spindle 3 via a spindle hub 2.
The spindle 3 is rotatably supported by the base body 5 via two ball bearings 4a and 4b which are vertically arranged. The magnetic disk 1 is rotated by a rotary motor composed of a rotor 7 provided on the spindle hub 2 side around the spindle 3 and a stator 6 provided on the base body 5 side corresponding to the rotor 7.

【0004】更に、回転する磁気ディスク1面上には、
図示しないアクセス機構 (アクチュエータ) のヘッドア
ーム8に支持ばね9を介して支持された磁気ヘッド10を
微小隙間で浮上させ、該アクセス機構により所定位置に
位置決めした磁気ヘッド10によって前記磁気ディスク1
に対する情報の記録・再生を行っている。
Further, on the surface of the rotating magnetic disk 1,
A magnetic head 10 supported by a head arm 8 of an access mechanism (actuator) (not shown) via a support spring 9 is levitated in a minute gap, and the magnetic disk 1 is positioned by the access mechanism at a predetermined position.
Recording and reproducing information to and from.

【0005】前記スピンドル3の回転を支持するべアリ
ングの剛性はそのベアリングの大きさ及び設置スパンに
比例するが、回転時の摩擦損失等を少なくするには小型
なベアリングの適用が望ましい。また組立て精度は相対
的なものであるので、当該装置が小型になった場合はそ
れに伴ってその組立て精度も高める必要がある。
The rigidity of the bearing for supporting the rotation of the spindle 3 is proportional to the size and installation span of the bearing, but it is desirable to use a small bearing to reduce friction loss during rotation. Further, since the assembling accuracy is relative, it is necessary to increase the assembling accuracy accordingly when the device becomes smaller.

【0006】[0006]

【発明が解決しようとする課題】ところで、上記したよ
うな磁気ディスク装置のより一層の小型化・薄型化に伴
い、スピンドルを支持するベアリングとしても、より小
型なベアリングを上下に短い設置スパンで用いることに
なるので、それらのベアリングに十分な剛性が得られな
くなり、それによって回転する磁気ディスク面の上下方
向(アキシャル方向)への非繰り返し的な振れが生じ、
その振れが増えるという問題がある。
By the way, with the further miniaturization and thinning of the magnetic disk drive as described above, a smaller bearing is used as a bearing for supporting the spindle with a vertically short installation span. As a result, sufficient rigidity cannot be obtained for those bearings, which causes non-repetitive run-out of the rotating magnetic disk surface in the vertical direction (axial direction).
There is a problem that the fluctuation increases.

【0007】また、そのような小型化により組立精度を
高めることも困難な場合には、前記回転する磁気ディス
ク面の上下方向(アキシャル方向)への非繰り返し的な
振れに加えて、繰り返し的な振れも大きくなる。
When it is difficult to improve the assembling accuracy due to such miniaturization, in addition to the non-repetitive swing of the surface of the rotating magnetic disk in the up-down direction (axial direction), repetitive swing The swing also becomes large.

【0008】従って、前記した磁気ディスク面の非繰り
返し的及び繰り返し的な振れにより、該磁気ディスク面
上に浮上する磁気ヘッドの浮上状態が不安定となり、安
定した記録・再生動作が困難となる問題があった。
Therefore, due to the non-repetitive and repetitive shake of the magnetic disk surface, the flying state of the magnetic head floating above the magnetic disk surface becomes unstable, and stable recording / reproducing operation becomes difficult. was there.

【0009】本発明は上記した従来の問題点に鑑み、装
置の小型化・薄型化に伴いスピンドルを支持するベアリ
ングを小型化し短い設置スパンで用いても、回転する磁
気ディスク面の上下方向(アキシャル方向)への非繰り
返し的及び繰り返し的な振れの発生を防止した新規な磁
気ディスク装置を提供することを目的とするものであ
る。
In view of the above-mentioned problems of the prior art, the present invention makes the bearing for supporting the spindle smaller and smaller even if the bearing is used with a short installation span in accordance with the miniaturization and thinning of the apparatus, and the vertical direction (axial) of the rotating magnetic disk surface is It is an object of the present invention to provide a novel magnetic disk device which prevents non-repetitive and repetitive shakes in the direction).

【0010】[0010]

【課題を解決するための手段】本発明は上記した目的を
達成するため、スピンドル部に装着された磁気ディスク
と、該磁気ディスク面の所定位置にアクセス機構により
位置決めして情報の記録・再生を行う磁気ヘッドを有す
る磁気ディスク装置において、前記磁気ディスクの外周
部の少なくとも1箇所の位置に、そのディスク外周部の
表裏面を挟む形状の空気軸受を弾性支持部材で支持した
状態に設けた構成とする。
In order to achieve the above-mentioned object, the present invention records and reproduces information by positioning a magnetic disk mounted on a spindle portion and an access mechanism at a predetermined position on the surface of the magnetic disk. In a magnetic disk device having a magnetic head for performing, at least one position of the outer peripheral portion of the magnetic disk is provided with an air bearing having a shape sandwiching the front and back surfaces of the outer peripheral portion of the magnetic disk supported by elastic supporting members. To do.

【0011】また、前記空気軸受は磁気ディスクの半径
方向に移動するようにアクセス機構に連結すると共に、
その空気軸受の各先端部にそれぞれ支持ばねを介して記
録再生用の磁気ヘッドを配設した構成とする。
The air bearing is connected to the access mechanism so as to move in the radial direction of the magnetic disk, and
A magnetic head for recording and reproduction is arranged at each tip of the air bearing via a support spring.

【0012】更に、前記空気軸受における磁気ディスク
の表裏面と対向する面に記録再生用の電磁変換素子を設
けると共に、該空気軸受をアクセス機構により磁気ディ
スクの半径方向に移動するようにした構成とする。
Further, an electromagnetic conversion element for recording and reproduction is provided on the surface of the air bearing which faces the front and back surfaces of the magnetic disk, and the air bearing is moved in the radial direction of the magnetic disk by an access mechanism. To do.

【0013】[0013]

【作用】本発明では、スピンドル部に装着された磁気デ
ィスクの外周部の少なくとも1箇所の位置に、そのディ
スク外周部の表裏面を挟む形状の空気軸受を弾性支持部
材で支持した状態に設け、前記磁気ディスクを回転する
ことにより、該磁気ディスクの表裏面と、それぞれ対向
する空気軸受との間隙に磁気ディスクの回転によって生
じる空気流が吹き込まれ、その空気圧により動圧空気軸
受が形成される。
According to the present invention, at least one position of the outer peripheral portion of the magnetic disk mounted on the spindle portion is provided with an air bearing having a shape sandwiching the front and back surfaces of the outer peripheral portion of the magnetic disk supported by elastic supporting members, By rotating the magnetic disk, an air flow generated by the rotation of the magnetic disk is blown into the gaps between the front and back surfaces of the magnetic disk and the air bearings facing each other, and the air pressure forms a dynamic pressure air bearing.

【0014】その結果、前記動圧空気軸受内を通過する
磁気ディスクのアキシャル方向への回転振れが抑制され
ので、かかる磁気ディスク面上に浮上する磁気ヘッドの
浮上姿勢が安定化し、安定した記録・再生動作を実現す
ることができる。
As a result, the rotational runout of the magnetic disk passing through the dynamic pressure air bearing in the axial direction is suppressed, so that the flying posture of the magnetic head floating above the surface of the magnetic disk is stabilized, and stable recording / writing is performed. A playback operation can be realized.

【0015】また、基本的には磁気ディスク面の磁気ヘ
ッドにより記録・再生を行っていく領域での回転振れを
抑制すればよいので、前記磁気ディスクの外周部の表裏
面を挟む形状に設けた空気軸受の各先端部にそれぞれ支
持ばねを介して磁気ヘッドを配設する、或いは該空気軸
受における磁気ディスクの表裏面と対向する面に記録・
再生用の電磁変換素子を配設すると共に、その空気軸受
をアクセス機構により磁気ディスクの半径方向に移動す
るように構成することにより、磁気ディスク面の磁気ヘ
ッド、或いは記録・再生用の電磁変換素子により記録・
再生を行う領域でのアキシャル方向への回転振れが抑制
される。
Further, basically, since it is sufficient to suppress the rotational shake in the area where recording and reproduction are performed by the magnetic head on the surface of the magnetic disk, the magnetic disk is provided in a shape sandwiching the front and back surfaces of the outer peripheral portion. A magnetic head is provided at each tip of the air bearing via a support spring, or recording / recording is performed on the surface of the air bearing that faces the front and back surfaces of the magnetic disk.
A magnetic head on the surface of the magnetic disk or an electromagnetic conversion element for recording / reproduction is provided by arranging an electromagnetic conversion element for reproduction and arranging its air bearing to move in the radial direction of the magnetic disk by an access mechanism. Recorded by
Rotational shake in the axial direction in the reproduction area is suppressed.

【0016】従って、該磁気ディスク面上に安定した浮
上姿勢の磁気ヘッドにより安定な記録・再生動作を実現
することができる。
Therefore, a stable recording / reproducing operation can be realized by the magnetic head in a stable flying posture on the surface of the magnetic disk.

【0017】[0017]

【実施例】以下図面を用いて本発明の実施例について詳
細に説明する。図1(a), (b)は本発明に係る磁気ディス
ク装置の第1実施例を示す図であり、図(a) は要部平面
図、図(b) は図(a) の要部側面図である。
Embodiments of the present invention will be described in detail below with reference to the drawings. 1 (a) and 1 (b) are views showing a first embodiment of a magnetic disk device according to the present invention. FIG. 1 (a) is a plan view of a main part, and FIG. 1 (b) is a main part of FIG. It is a side view.

【0018】これら両図において、21は図5(a), (b)に
示す従来例と同様に磁気ディスク1をスピンドルハブ2
を介してスピンドル3に固定し、該スピンドル3は上下
に2つのボールベアリング4a, 4bを介してベース体5に
回転可能に支持され、該スピンドル3の周囲のスピンド
ルハブ2側に設けたロータ7とこれと対応するベース体
5側に設けたステータ6とで構成される回転モータによ
り磁気ディスク1を回転させるスピンドル部である。
In both of these figures, reference numeral 21 designates the magnetic disk 1 and the spindle hub 2 as in the conventional example shown in FIGS. 5 (a) and 5 (b).
Is fixed to a spindle 3 via a rotor 7, and the spindle 3 is rotatably supported by a base body 5 via two ball bearings 4a and 4b, and a rotor 7 provided around the spindle 3 on the spindle hub 2 side. And a stator 6 provided on the side of the base body 5 corresponding thereto, which is a spindle unit for rotating the magnetic disk 1 by a rotary motor.

【0019】また、前記磁気ディスク1の外周部の少な
くとも1箇所の所定位置には、図1(b) に示すようにそ
のディスク外周部の表裏面を挟む形状の空気軸受22が弾
性支持部材23等により支持した状態に配設されている。
Further, at least at a predetermined position on the outer peripheral portion of the magnetic disk 1, an air bearing 22 having a shape sandwiching the front and back surfaces of the outer peripheral portion of the disk is provided at an elastic supporting member 23 as shown in FIG. 1 (b). It is arranged in a state of being supported by the above.

【0020】そして、前記磁気ディスク1をスピンドル
部21により回転することにより、該磁気ディスク1の表
裏面と、それぞれ対向する空気軸受22との上下の間隙に
磁気ディスクの回転によって生じる空気流が吹き込ま
れ、その空気圧により前記上下の間隙で動圧が発生して
動圧空気軸受が形成されるので、該動圧空気軸受内を通
過する磁気ディスク1のアキシャル方向への回転振れが
抑制される。
When the magnetic disk 1 is rotated by the spindle portion 21, the air flow generated by the rotation of the magnetic disk is blown into the upper and lower gaps between the front and back surfaces of the magnetic disk 1 and the air bearings 22 which face each other. As a result, a dynamic pressure is generated in the upper and lower gaps by the air pressure to form a dynamic pressure air bearing, so that rotational deflection of the magnetic disk 1 passing through the dynamic pressure air bearing in the axial direction is suppressed.

【0021】従って、磁気ディスク1面上にアクセス機
構24の図示しないヘッドアームに支持ばね9を介して支
持され、かつ浮上する磁気ヘッド10の浮上姿勢が安定化
し、安定した記録・再生動作を実現することができる。
Therefore, the flying attitude of the magnetic head 10 which is supported on the head arm (not shown) of the access mechanism 24 via the support spring 9 on the surface of the magnetic disk 1 and which is floating is stabilized, and stable recording / reproducing operations are realized. can do.

【0022】なお、以上の実施例では磁気ディスク1の
外周部の1箇所の所定位置に、その外周部の表裏面を挟
む形状の空気軸受22を設けた場合の例について説明した
が、そのような例に限定するものではなく、例えば磁気
ディスクの外周部の2箇所の所定位置、或いは図2の平
面図で示すように磁気ディスク1の外周部の3箇所の所
定位置にそれぞれその外周部の表裏面を挟む形状の空気
軸受22a,22b,22c を設けた構成とすることにより、磁気
ディスク1のアキシャル方向への回転振れをより効果的
に抑制することが可能となる。
In the above embodiment, an example in which the air bearing 22 having a shape sandwiching the front and back surfaces of the outer peripheral portion is provided at one predetermined position on the outer peripheral portion of the magnetic disk 1 has been described. However, the present invention is not limited to this example, and for example, at two predetermined positions on the outer peripheral portion of the magnetic disk, or at three predetermined positions on the outer peripheral portion of the magnetic disk 1 as shown in the plan view of FIG. By providing the air bearings 22a, 22b, 22c having a shape sandwiching the front and back surfaces, it is possible to more effectively suppress the rotational runout of the magnetic disk 1 in the axial direction.

【0023】図3は本発明に係る磁気ディスク装置の第
2実施例を示す要部側面図であり、図1(b) と同等部分
には同一符号を付している。この図で示す実施例が図1
(b) の第1実施例と異なる点は、磁気ディスク1の外周
部の所定位置に、そのディスク外周部の表裏面を挟む形
状に設けた空気軸受22の各先端部にそれぞれ支持ばね9
を介して記録再生用の磁気ヘッド10を配設すると共に、
その空気軸受22を弾性支持部材23を介してアクセス機構
(アクチュエータ)24 に取付け、該アクセス機構24によ
り前記空気軸受22と磁気ヘッド10とを磁気ディスク1の
半径方向に移動するように構成したことである。
FIG. 3 is a side view of the essential parts showing a second embodiment of the magnetic disk apparatus according to the present invention, in which the same parts as those in FIG. 1 (b) are designated by the same reference numerals. The embodiment shown in this figure is shown in FIG.
The point different from the first embodiment of (b) is that the support spring 9 is provided at each predetermined position on the outer peripheral portion of the magnetic disk 1 at each tip portion of the air bearing 22 provided in a shape sandwiching the front and back surfaces of the outer peripheral portion of the magnetic disk 1.
While disposing the magnetic head 10 for recording and reproducing via
The air bearing 22 is provided with an elastic support member 23 to provide an access mechanism.
The actuator is attached to an (actuator) 24, and the air bearing 22 and the magnetic head 10 are moved by the access mechanism 24 in the radial direction of the magnetic disk 1.

【0024】このような実施例の構成により、磁気ディ
スク1面における前記磁気ヘッド10により情報の記録、
或いは再生を行う領域及びその近傍でのアキシャル方向
への回転振れを抑制することが可能となり、その磁気デ
ィスク面上に浮上する前記磁気ヘッドの浮上姿勢が安定
化し、図1の第1実施例と同様に安定な記録・再生動作
を実現することが可能となる。
With the structure of this embodiment, recording of information by the magnetic head 10 on the surface of the magnetic disk 1,
Alternatively, it becomes possible to suppress the rotational runout in the axial direction in the reproducing area and its vicinity, and the flying posture of the magnetic head floating above the magnetic disk surface is stabilized, and the first embodiment of FIG. Similarly, stable recording / reproducing operations can be realized.

【0025】図4は本発明に係る磁気ディスク装置の第
3実施例を示す要部側面図であり、図1(b) と同等部分
には同一符号を付している。この図で示す実施例が図1
(b) の第1実施例と異なる点は、磁気ディスク1の外周
部の所定位置に、該外周部の表裏面を挟む形状に設けた
空気軸受22における磁気ディスクの表裏面と対向する面
の一部に記録・再生用の電磁変換素子31を図示のように
配設すると共に、その空気軸受22は弾性支持部材23を介
してアクセス機構 (アクチュエータ)24 に取付け、該ア
クセス機構24により前記空気軸受22と電磁変換素子31と
を磁気ディスク1の半径方向に移動可能に構成したこと
である。
FIG. 4 is a side view of the essential parts showing a third embodiment of the magnetic disk device according to the present invention, in which the same parts as those in FIG. 1 (b) are designated by the same reference numerals. The embodiment shown in this figure is shown in FIG.
The difference from the first embodiment of (b) is that the surface of the air bearing 22 that is provided at a predetermined position on the outer peripheral portion of the magnetic disk 1 in a shape sandwiching the front and rear surfaces of the outer peripheral portion faces the front and rear surfaces of the magnetic disk. A recording / reproducing electromagnetic conversion element 31 is disposed in a part as shown, and its air bearing 22 is attached to an access mechanism (actuator) 24 via an elastic support member 23, and the air is transmitted by the access mechanism 24. The bearing 22 and the electromagnetic conversion element 31 are configured to be movable in the radial direction of the magnetic disk 1.

【0026】このような実施例の構成によっても、磁気
ディスク1面における前記電磁変換素子31により情報の
記録、或いは再生を行う領域及びその近傍でのアキシャ
ル方向への回転振れを抑制することが可能となり、図1
の第1実施例、または図3の第2実施例と同様に安定な
記録・再生動作を実現することが可能となる。
With the structure of this embodiment as well, it is possible to suppress rotational shake in the axial direction in the area where information is recorded or reproduced by the electromagnetic conversion element 31 on the surface of the magnetic disk 1 and in the vicinity thereof. And Fig. 1
It is possible to realize stable recording / reproducing operations as in the first embodiment or the second embodiment of FIG.

【0027】なお、図3の第2実施例及び図4の第3実
施例では記録再生用の磁気ヘッド10や電磁変換素子31が
空気軸受22より磁気ディスク1の内周側に設けている場
合の例について説明したが、前記磁気ヘッド10や電磁変
換素子31が空気軸受22より磁気ディスク1の外周側に設
け、該空気軸受22と磁気ヘッド10、或いは電磁変換素子
31とをアクセス機構により磁気ディスク1の半径方向に
移動可能に構成することにより、前記図3の第2実施例
及び図4の第3実施例と同様な効果が得られると共に、
磁気ディスクの外周面がデータゾーンとして用いられる
ので、該磁気ディスクの記録容量を効果的に増加するこ
とができる。
In the second embodiment shown in FIG. 3 and the third embodiment shown in FIG. 4, the magnetic head 10 for recording / reproducing and the electromagnetic conversion element 31 are provided on the inner peripheral side of the magnetic disk 1 with respect to the air bearing 22. The magnetic head 10 and the electromagnetic conversion element 31 are provided on the outer peripheral side of the magnetic disk 1 with respect to the air bearing 22, and the air bearing 22 and the magnetic head 10 or the electromagnetic conversion element are described.
By configuring 31 and 31 to be movable in the radial direction of the magnetic disk 1 by the access mechanism, the same effects as those of the second embodiment of FIG. 3 and the third embodiment of FIG. 4 can be obtained, and
Since the outer peripheral surface of the magnetic disk is used as the data zone, the recording capacity of the magnetic disk can be effectively increased.

【0028】[0028]

【発明の効果】以上の説明から明らかなように、本発明
に係る磁気ディスク装置によれば、小型・薄型化した磁
気ディスク装置のスピンドル部におけるボールベアリン
グの剛性低下に伴う磁気ディスク面のアキシャル方向へ
の回転振れを抑制することが可能となり、回転する磁気
ディスク面上に浮上する前記磁気ヘッドの浮上姿勢が安
定化し、安定した記録・再生動作が実現できる等、実用
上優れた効果を奏する。
As is apparent from the above description, according to the magnetic disk device of the present invention, the axial direction of the magnetic disk surface is reduced due to the decrease in the rigidity of the ball bearing in the spindle portion of the magnetic disk device which is small and thin. It is possible to suppress the rotational runout to the magnetic disk, stabilize the flying posture of the magnetic head that floats on the surface of the rotating magnetic disk, and realize stable recording / reproducing operations.

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

【図1】 本発明の磁気ディスク装置の第1実施例を示
す要部平面図とその要部側面図である。
FIG. 1 is a plan view of a main part and a side view of the main part showing a first embodiment of a magnetic disk device of the present invention.

【図2】 本発明の磁気ディスク装置の第1実施例の変
形例を示す要部平面図である。
FIG. 2 is a main part plan view showing a modified example of the first embodiment of the magnetic disk device of the present invention.

【図3】 本発明の磁気ディスク装置の第2実施例を示
す要部側面図である。
FIG. 3 is a side view of essential parts showing a second embodiment of the magnetic disk device of the present invention.

【図4】 本発明の磁気ディスク装置の第3実施例を示
す要部側面図である。
FIG. 4 is a side view of essential parts showing a third embodiment of the magnetic disk device of the present invention.

【図5】 従来の磁気ディスク装置を説明するための要
部平面図とその要部側断面図である。
FIG. 5 is a plan view of a main part and a side sectional view of the main part for explaining a conventional magnetic disk device.

【符号の説明】[Explanation of symbols]

1 磁気ディスク 9 支持ばね 10 磁気ヘッド 21 スピンドル部 22,22a,22b,22c 空気軸受 23 弾性支持部材 24 アクセス機構 31 電磁変換素子 DESCRIPTION OF SYMBOLS 1 Magnetic disk 9 Support spring 10 Magnetic head 21 Spindle part 22, 22a, 22b, 22c Air bearing 23 Elastic support member 24 Access mechanism 31 Electromagnetic conversion element

───────────────────────────────────────────────────── フロントページの続き (72)発明者 公平 徹 神奈川県川崎市中原区上小田中1015番地 富士通株式会社内 (72)発明者 小金沢 新治 神奈川県川崎市中原区上小田中1015番地 富士通株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toru Kohei 1015 Kamiodanaka, Nakahara-ku, Kawasaki City, Kanagawa Prefecture, Fujitsu Limited (72) Inventor Shinji Koganazawa, 1015, Kamedotachu, Nakahara-ku, Kawasaki City, Kanagawa Prefecture, Fujitsu Limited

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 スピンドル部(21)に装着された磁気ディ
スク(1)と、該磁気ディスク(1)面の所定位置にア
クセス機構(24)により位置決めして情報の記録・再生を
行う磁気ヘッド(10)を有する磁気ディスク装置におい
て、 前記磁気ディスク(1)の外周部の少なくとも1箇所の
位置に、そのディスク外周部の表裏面を挟む形状の空気
軸受(22)を弾性支持部材(23)で支持した状態に設けたこ
とを特徴とする磁気ディスク装置。
1. A magnetic disk (1) mounted on a spindle section (21) and a magnetic head for recording / reproducing information by positioning at a predetermined position on the surface of the magnetic disk (1) by an access mechanism (24). In the magnetic disk device having (10), at least one position of the outer peripheral portion of the magnetic disk (1) is provided with an elastic bearing member (23) having an air bearing (22) having a shape sandwiching the front and back surfaces of the outer peripheral portion of the disk. A magnetic disk device, which is provided in a state of being supported by.
【請求項2】 前記空気軸受(22)は磁気ディスク(1)
の半径方向に移動するようにアクセス機構(24)に連結す
ると共に、その空気軸受(22)の各先端部にそれぞれ支持
ばね(9)を介して記録再生用の磁気ヘッド(10)を配設
したことを特徴とする請求項1の磁気ディスク装置。
2. The air bearing (22) is a magnetic disk (1).
Is connected to the access mechanism (24) so as to move in the radial direction of the magnetic head, and a magnetic head (10) for recording and reproducing is arranged at each tip of the air bearing (22) via a support spring (9). The magnetic disk device according to claim 1, wherein
【請求項3】 前記空気軸受(22)における磁気ディスク
(1)の表裏面と対向する面に記録再生用の電磁変換素
子(31)を設けると共に、該空気軸受(22)をアクセス機構
(24)により磁気ディスク(1)の半径方向に移動するよ
うにしたことを特徴とする請求項1の磁気ディスク装
置。
3. An electromagnetic conversion element (31) for recording and reproducing is provided on a surface of the air bearing (22) facing the front and back surfaces of the magnetic disk (1), and the air bearing (22) is provided with an access mechanism.
The magnetic disk drive according to claim 1, wherein the magnetic disk (1) is moved in a radial direction by (24).
JP8441593A 1993-04-12 1993-04-12 Magnetic disk device Pending JPH06302153A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8441593A JPH06302153A (en) 1993-04-12 1993-04-12 Magnetic disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8441593A JPH06302153A (en) 1993-04-12 1993-04-12 Magnetic disk device

Publications (1)

Publication Number Publication Date
JPH06302153A true JPH06302153A (en) 1994-10-28

Family

ID=13829962

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8441593A Pending JPH06302153A (en) 1993-04-12 1993-04-12 Magnetic disk device

Country Status (1)

Country Link
JP (1) JPH06302153A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6903899B2 (en) * 2001-04-13 2005-06-07 Fujitsu Limited Magnetic disk device with wind shield members
JP2009158002A (en) * 2007-12-26 2009-07-16 Toshiba Corp Disk drive

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6903899B2 (en) * 2001-04-13 2005-06-07 Fujitsu Limited Magnetic disk device with wind shield members
JP2009158002A (en) * 2007-12-26 2009-07-16 Toshiba Corp Disk drive

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