JPH02206083A - Base structure of information recording and reproducing device - Google Patents
Base structure of information recording and reproducing deviceInfo
- Publication number
- JPH02206083A JPH02206083A JP2578089A JP2578089A JPH02206083A JP H02206083 A JPH02206083 A JP H02206083A JP 2578089 A JP2578089 A JP 2578089A JP 2578089 A JP2578089 A JP 2578089A JP H02206083 A JPH02206083 A JP H02206083A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic disk
- recording medium
- base
- spindle
- 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
- 230000000712 assembly Effects 0.000 abstract description 3
- 238000000429 assembly Methods 0.000 abstract description 3
- 125000006850 spacer group Chemical group 0.000 abstract description 3
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Landscapes
- Rotational Drive Of Disk (AREA)
Abstract
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係り、特に記録媒体並び
に記録媒体回転機構の配置方法による温度分布の均一化
による熟度影防止及び剛性向上による振動抑制に好適な
ベース構造に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a magnetic disk device, and in particular, the present invention relates to a magnetic disk device, and in particular, to prevent ripeness shadows and improve rigidity by making temperature distribution uniform by a method of arranging a recording medium and a recording medium rotation mechanism. The present invention relates to a base structure suitable for vibration suppression.
従来の磁気ディスク装置におけるベース構造は、特開昭
５９−２２７０７７号公報に記載のように、ベースの両
面に記録媒体が対称に配置されているが、記録媒体起動
時であるスピンドルモータ及びスピンドル軸を共有する
構造となっていた。The base structure of a conventional magnetic disk device has a recording medium arranged symmetrically on both sides of the base, as described in Japanese Patent Application Laid-Open No. 59-227077. It was structured to share the following.
上記従来技術は、第２図に示すように小径の記録媒体を
多数積層した際に、実装スペースの制約から記録媒体回
転機構を構成するスピンドルモータの小形化が必要とな
る。しかしスピンドルモータの小形化は、起動トルクを
低下させる結果となり、記録媒体起動時において情報記
録再生用変換器と記録媒体の接触に伴う摩擦力との関係
についての構造的配慮が充分でなく、記録媒体が回転出
来ない等の問題があった。In the above-mentioned conventional technology, when a large number of small-diameter recording media are stacked as shown in FIG. 2, it is necessary to downsize the spindle motor that constitutes the recording medium rotation mechanism due to mounting space constraints. However, the miniaturization of the spindle motor results in a decrease in starting torque, and insufficient structural consideration has been given to the relationship between the frictional force that accompanies the contact between the information recording/reproducing converter and the recording medium when starting the recording medium. There were problems such as the media not being able to rotate.
また、記録媒体を多数積層するとスピンドル軸が長くな
り、剛性を維持するためにスピンドル軸径を太くする等
の配慮を必要とする。しかしスピンドルモータの小形化
で制約を生じスピンドル軸か細くかつ長くなり、剛性不
足による振動発生等の問題があった。Furthermore, when a large number of recording media are stacked, the spindle shaft becomes long, and consideration must be given to increasing the diameter of the spindle shaft in order to maintain rigidity. However, the miniaturization of spindle motors has resulted in restrictions, and the spindle shaft has become thinner and longer, resulting in problems such as vibration generation due to lack of rigidity.
本発明の目的は、上記記録媒体回転機構の起動トルク不
足と剛性不足の解消を目的としたベース構造を提供する
ことにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a base structure that eliminates the insufficient starting torque and insufficient rigidity of the recording medium rotation mechanism.
上記目的を達成するために、磁気ティスフ装置の記録媒
体に回転力を与えるスピンドルモータを剛性の高いベー
スの両側に対称となるよう分散配置したものである。In order to achieve the above object, spindle motors that apply rotational force to a recording medium of a magnetic disk device are arranged symmetrically and distributed on both sides of a highly rigid base.
また、記録媒体を回転支持するスピンドル軸をスピンド
ルモータに対応して分離し、独立したスピンドル構造を
構成したものである。Further, the spindle shaft that rotatably supports the recording medium is separated in correspondence with the spindle motor, thereby configuring an independent spindle structure.
ベースの両側に配置された磁気ディスク組立体は、それ
ぞれ独立したスピンドル構造体で支持され、ハウジング
を介して取付られたスピンドルモータにより個別に回転
駆動される。前記スピンドルモータは、ベースの片側に
装着された磁気ディスク組立体のみ回転駆動させるに必
要な性能で良く小形、小出力化が可能となり、スピンド
ルモータ及びスピンドル部の発熱が低減し、かつ分散さ
せるためベースの温度分布が平均化され、温度差による
熱ヒスミか減少する。従って磁気ディスクに苅する磁気
へソ１くの位置決め！ｒｉ度を向上することかできる。The magnetic disk assemblies disposed on both sides of the base are supported by independent spindle structures, and are individually rotationally driven by spindle motors attached through the housing. The spindle motor has the performance necessary to rotationally drive only the magnetic disk assembly mounted on one side of the base, and can be made smaller and smaller in output, and the heat generation of the spindle motor and spindle part is reduced and dispersed. The temperature distribution of the base is averaged, and thermal hissence due to temperature differences is reduced. Therefore, position the magnetic heel on the magnetic disk! It is possible to improve the ri degree.
また、磁気ディスク組立体は、スピンドル構造体で回転
支持されるが、スピンドル構造体は、ベース両側に独立
して構成されるので、スピンドル軸を短かくすることが
でき、かつスピンドル軸に対する負荷が磁気ディスク組
立体の分割で減少するためにスピンドル構造体の剛性は
高くなり、磁気ティスフ組立体の振動を抑制することが
できる。Furthermore, the magnetic disk assembly is rotatably supported by a spindle structure, and since the spindle structures are constructed independently on both sides of the base, the spindle shaft can be shortened and the load on the spindle shaft can be reduced. Since the rigidity of the spindle structure is reduced by dividing the magnetic disk assembly, the vibration of the magnetic disk assembly can be suppressed.
以下、本発明の−・実施例を第１図により説明する。磁
気ディスク６とスペーサ１２は、ハブ７に複数枚積層さ
れ、ディスククランプ１１により固定され磁気ディスク
組立体１５を構成する。２体に分割された磁気ディスク
組立体１５は、ベース１の両面に対称に配置され軸受１
０を介してハウ、 ３ 。Embodiments of the present invention will be described below with reference to FIG. A plurality of magnetic disks 6 and spacers 12 are stacked on the hub 7 and fixed by a disk clamp 11 to form a magnetic disk assembly 15. The magnetic disk assembly 15, which is divided into two parts, is arranged symmetrically on both sides of the base 1 and has a bearing 1.
Howe, 3 via 0.
・ ４ ・
ジング１４にて支持される。磁気ディスク組立体１５は
ステータコイル３とロータマグネット４て形成されたス
ピンドルモータ１６により回転駆動される。磁気ヘッド
５は、ベース１に支持された磁気ヘッド位置決め機構８
を介してホイスコイルモータ９により回転駆動され、磁
気ディスク６」−に位置決めされる。・ 4 ・ Supported by ring 14. The magnetic disk assembly 15 is rotationally driven by a spindle motor 16 formed by a stator coil 3 and a rotor magnet 4. The magnetic head 5 includes a magnetic head positioning mechanism 8 supported by the base 1.
It is rotated by a whirlpool coil motor 9 and positioned on the magnetic disk 6''.
本実施例によれば、磁気ディスク組立体１５を駆動する
スピンドルモータ１６が必要とする起動トルクは、磁気
ディスク６と磁気ヘッド５の静摩擦力と半径方向の位置
関係で決定されるが、ベース１を境に片側の磁気ディス
ク組立体１５のみ考慮すれば良く、従来と比較してスピ
ンドルモータ１６の小形化、小出力化が可能となる。ま
たベース１の両面に熱源となるスピンドルモータ１６と
スピンドル軸受１０が対称的に分散配置され、スピンド
ルモータ１６の小出力化との相乗効果により磁気ディス
ク装置内部の温度分布が均一化され、温度差によってベ
ース１等の熱変形低減に効果がある。さらに磁気ディス
ク組立体１５を支持するスピンドル軸２はベース１を貫
通することなく片側の磁気ディスク組立体１５のみ負荷
すれば良く、スピンドル軸２の短縮との効果で、スピン
ドル軸２の曲げ剛性を高めることができる。従ってスピ
ンドル軸２の曲げ振動周波数は高くなり、磁気ディスク
組立体１５の振動抑制に効果がある。According to this embodiment, the starting torque required by the spindle motor 16 that drives the magnetic disk assembly 15 is determined by the static friction force and the radial positional relationship between the magnetic disk 6 and the magnetic head 5. Only the magnetic disk assembly 15 on one side of the magnetic disk assembly 15 needs to be considered, and the spindle motor 16 can be made smaller and have a lower output than the conventional case. In addition, the spindle motor 16 and spindle bearing 10, which serve as a heat source, are symmetrically distributed on both sides of the base 1, and the synergistic effect with the small output of the spindle motor 16 makes the temperature distribution inside the magnetic disk device uniform, and the temperature difference This is effective in reducing thermal deformation of the base 1 and the like. Furthermore, the spindle shaft 2 supporting the magnetic disk assembly 15 does not pass through the base 1, and only one side of the magnetic disk assembly 15 needs to be loaded, and the effect of shortening the spindle shaft 2 improves the bending rigidity of the spindle shaft 2. can be increased. Therefore, the bending vibration frequency of the spindle shaft 2 becomes high, which is effective in suppressing the vibration of the magnetic disk assembly 15.
本発明によれば、ベースの熱変形を少くできるので、磁
気ディスクに対する磁気ヘッドの位置決め精度が向上し
、情報の高密度記録再生化に効果がある。According to the present invention, since the thermal deformation of the base can be reduced, the positioning accuracy of the magnetic head with respect to the magnetic disk is improved, which is effective for high-density recording and reproduction of information.
また、磁気ディスク起動時の必要トルクに対し、スピン
ドルモータの起動トルクを充分確保できるので、磁気デ
ィスク起動不良等の障害防止に効果がある。In addition, sufficient starting torque for the spindle motor can be ensured for the torque required for starting up the magnetic disk, which is effective in preventing failures such as failure to start up the magnetic disk.
さらにスピンドル軸の高剛性化により、スピンドル部へ
の磁気ディスク積層数の増加が可能となり、情報記憶容
量の増大に効果がある。Furthermore, by increasing the rigidity of the spindle shaft, it is possible to increase the number of magnetic disks stacked on the spindle portion, which is effective in increasing the information storage capacity.
第１８図は、本発明の一実施例の磁気ディスク装置の縦
断面図、第２図は、従来装置１′ｉに於ける例を示す縦
断面図である。
１・・・ベース、２・・・スピンドル軸、３・・ステー
タコイル、４・・・ロータマグネット、５・・・磁気ヘ
ッド、６・・磁気ディスク、７ ハブ、８・・磁気ヘッ
ト位置決め機構、９ ポイスコイルモータ。
１０−・軸受、」−１・・ディスククランプ、１２スペ
ーサ、］３ カバー、］／］ ・ハウジング。
１５ ・磁気ディスク組立体、］−６・・スピン［へル
モータ。
ヰ
〜
ビ汝層とFIG. 18 is a vertical cross-sectional view of a magnetic disk device according to an embodiment of the present invention, and FIG. 2 is a vertical cross-sectional view showing an example of a conventional device 1'i. DESCRIPTION OF SYMBOLS 1... Base, 2... Spindle shaft, 3... Stator coil, 4... Rotor magnet, 5... Magnetic head, 6... Magnetic disk, 7 Hub, 8... Magnetic head positioning mechanism, 9 Pois coil motor. 10 - Bearing, 1. Disc clamp, 12 Spacer, ] 3 Cover, ]/] - Housing. 15 ・Magnetic disk assembly, ]-6...Spin [Helmotor. I~ Be with you
Claims (1)
媒体に情報を記録再生する変換器と、変換器を移動する
ことにより、選択的に前記記録媒体の半径方向に位置決
めする位置決め機構と前記の記録媒体、記録媒体回転機
構、変換器及び位置決め機構を支持する情報記録再生装
置のベース構造において、前記記録媒体及び記録媒体回
転機構を前記ベースの両側に対称となるよう個別に配置
したことを特徴とする情報記録再生装置のベース構造。1. A recording medium rotated by a recording medium rotation mechanism; a converter for recording and reproducing information on the recording medium; a positioning mechanism for selectively positioning the recording medium in the radial direction by moving the converter; In a base structure of an information recording and reproducing device that supports a recording medium, a recording medium rotation mechanism, a converter, and a positioning mechanism, the recording medium and the recording medium rotation mechanism are individually arranged symmetrically on both sides of the base. Base structure of information recording and reproducing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2578089A JPH02206083A (en) | 1989-02-06 | 1989-02-06 | Base structure of information recording and reproducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2578089A JPH02206083A (en) | 1989-02-06 | 1989-02-06 | Base structure of information recording and reproducing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02206083A true JPH02206083A (en) | 1990-08-15 |
Family
ID=12175352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2578089A Pending JPH02206083A (en) | 1989-02-06 | 1989-02-06 | Base structure of information recording and reproducing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02206083A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6188660B1 (en) * | 1995-07-07 | 2001-02-13 | Sony Corporation | Disc recording and/or reproducing apparatus |
-
1989
- 1989-02-06 JP JP2578089A patent/JPH02206083A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6188660B1 (en) * | 1995-07-07 | 2001-02-13 | Sony Corporation | Disc recording and/or reproducing apparatus |
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