JPS5994273A - Information recording and reproducing disk device - Google Patents

Information recording and reproducing disk device

Info

Publication number
JPS5994273A
JPS5994273A JP20481382A JP20481382A JPS5994273A JP S5994273 A JPS5994273 A JP S5994273A JP 20481382 A JP20481382 A JP 20481382A JP 20481382 A JP20481382 A JP 20481382A JP S5994273 A JPS5994273 A JP S5994273A
Authority
JP
Japan
Prior art keywords
support system
head support
downstream side
flowing speed
plate
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
JP20481382A
Other languages
Japanese (ja)
Other versions
JPH0125160B2 (en
Inventor
Shinji Hayama
葉山　眞治
Shigehiko Kaneko
成彦 金子
Takaharu Ariga
敬治 有賀
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 JP20481382A priority Critical patent/JPS5994273A/en
Publication of JPS5994273A publication Critical patent/JPS5994273A/en
Publication of JPH0125160B2 publication Critical patent/JPH0125160B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
    • G11B25/04—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card
    • G11B25/043—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card using rotating discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/02—Cabinets; Cases; Stands; Disposition of apparatus therein or thereon
    • G11B33/08—Insulation or absorption of undesired vibrations or sounds
    • 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
    • G11B5/58—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 for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/60—Fluid-dynamic spacing of heads from record-carriers
    • G11B5/6005—Specially adapted for spacing from a rotating disc using a fluid cushion

Landscapes

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

Abstract

PURPOSE:To suppress greatly the vibrations due to the air flow of a head support system to reduce read/write errors and to attain easily a disk device having high recording density, by providing a current plate at the downstream side of the head support system which is used for access to an information record disk. CONSTITUTION:A current plate 8 is provided at the downstream side of a head support system, and therefore an almost clean laminar flow state is obtained with a low flowing speed at a region A of the upstream side of the plate 8. While a turbulent flow state is produced with a comparatively high flowing speed at a region A of the downstream side of the plate 8. In general the fluid power is proportional to a square of flowing speed. Therefore the exciting force is greatly reduced with a low flowing speed. In other works, the vibration suppressing effect is improved with reduced read/write errors.

Description

【発明の詳細な説明】 （１１発明の技術分野 本発明はヘッドに与えられる振動を抑制するための手段
を改良した情報記録再生ディスク装置に関する。DETAILED DESCRIPTION OF THE INVENTION (11) Technical Field of the Invention The present invention relates to an information recording/reproducing disk device with improved means for suppressing vibrations applied to a head.

（２シ　　技術の背景 従来の磁気ディスク装置におけるヘッドはディスク面か
ら微小なすきまで浮上しているスライダ上に取付けられ
、そのスライダは曲げ方向にやわらかいばねをもつジン
バルを介してアクセスアームに取付けられている。(2) Background of the Technology The head in a conventional magnetic disk drive is mounted on a slider that floats up to a minute gap from the disk surface, and the slider is attached to an access arm via a gimbal with a soft spring in the bending direction. ing.

このような支持系内のジンバルはディスクの周速で数＋
１−　もあり、ディスクからある程度離れた位置でも１
０ｍ／（３）以上という高速且つ乱れの多い空気流中に
置かれることになるため、ジンバルが空気流により励振
されて有害表振動を起すことがあってヘッドによる情報
の読取り、書込みにエラーを生じさせてしまうことがあ
った。このような不具合は、最近の高記録密度ディスク
装置では、顕著に現われる傾向を有するので、これを解
決することが焦眉の急となっている。The gimbals in such a support system are
1-, even at a certain distance from the disc.
Since the gimbal will be placed in a high-speed and turbulent airflow of over 0m/(3), the airflow may cause harmful surface vibrations, which may cause errors in the reading and writing of information by the head. There were times when I caused it to occur. Since such problems tend to appear more prominently in recent high-density disk drives, it is urgent to solve them.

（３）、従来技術と問題点 従来においても、上述のような振動を抑制する手段はあ
ったが、その手段は第１図に示すように、アームａの上
流側にスポイラｂを設けるというものである。この手段
によれば、スポイラｂによｐ空気流がせきとめられるた
め、ディスク間の空気流の速度はかなり低下される。な
お、第１図において、Ｃはジンバル、ｄはヘッドを取り
付けているスライダ、ｅはヘッド駆動モータ、ｆＨディ
スク、ｇはベース及びカバーである。(3) Prior Art and Problems Conventionally, there have been means to suppress the vibrations mentioned above, but that means is to provide a spoiler b on the upstream side of arm a, as shown in Figure 1. It is. According to this means, the spoiler b blocks the air flow p, so that the speed of the air flow between the disks is considerably reduced. In FIG. 1, C is a gimbal, d is a slider to which the head is attached, e is a head drive motor, fH disk, and g is a base and cover.

しかしながら、ジンバルＣはスポイラｂの後流中におか
れるため渦が発生し易く、乱れはむしろ増加する。従っ
て、全体としては成る程度の振動抑制効果はあると云え
るが、その効果は必ずしも十分なものではなかった。However, since the gimbal C is placed in the wake of the spoiler b, vortices are likely to occur, and the turbulence actually increases. Therefore, although it can be said that there is a certain degree of vibration suppression effect as a whole, the effect was not necessarily sufficient.

（４）０発明の目的 本発明は上述した従来装置の有する欠点に鑑みて創案さ
れたもので、その目的はヘッド支持系の空気流による振
動を抑制して読取り、書込みに不共合を与えることなく
読取り、書込みを行える情報記録再生ディスク装置を提
供することにある。(4) Purpose of the Invention The present invention was devised in view of the above-mentioned drawbacks of the conventional device, and its purpose is to suppress vibrations caused by air flow in the head support system, which cause incongruence in reading and writing. An object of the present invention is to provide an information recording/reproducing disk device that can read and write information without any trouble.

（５）０発明の構成 そして、この目的は情報記録ディスクへのアクセスに用
いられるヘッド支持系の下流側に整流板を設けることに
よって達成される。(5) Structure of the Invention This object is achieved by providing a current plate on the downstream side of the head support system used for accessing the information recording disk.

（６）１発明の実施例 以下、添付図面を参照しながら、本発明の詳細な説明す
る。(6) First Embodiment The present invention will be described in detail below with reference to the accompanying drawings.

第２図は本発明の一実施例を示す。１は情報記録再生デ
ィスク装置（以下、磁気ディスク装置について説明する
。）の本体で、この本体１　　゛に磁気ディスク（情報
記録ディスク）２が回転可能に取付けられている。磁気
ディスク２へのアクセスを行うアクセス機構３が又、本
体１に取付けられている。アクセス機構３はモータ４と
、モータ４の出力軸に取付けられたアーム５と、ジンバ
ル６と、ヘッドを取付けたスライダ７とから成る。アー
ム５と、ジンバル６と、スライダ７とはヘッド支持系を
構成している。ヘッド支持系の下流側に整流板８が取付
けられている。整流板８は磁気ディスクの枚数だけ有し
、第３図に示す如き櫛形７ＩＩ造をなしている。FIG. 2 shows an embodiment of the invention. Reference numeral 1 denotes a main body of an information recording/reproducing disk device (hereinafter, the magnetic disk device will be explained), and a magnetic disk (information recording disk) 2 is rotatably attached to the main body 1. An access mechanism 3 for accessing the magnetic disk 2 is also attached to the main body 1. The access mechanism 3 includes a motor 4, an arm 5 attached to the output shaft of the motor 4, a gimbal 6, and a slider 7 to which a head is attached. The arm 5, gimbal 6, and slider 7 constitute a head support system. A current plate 8 is attached to the downstream side of the head support system. The rectifier plates 8 have the same number of magnetic disks as the number of magnetic disks, and have a comb-shaped 7II structure as shown in FIG.

このように、ヘッド支持系の後流側に、整流板８を設け
る構成にすると、ディスク間の流れの可視化の結果を模
式的に描いた第４図から判るように、整流板８の上流側
の領域Ａでは、＃１ｙきれいな層流状態で且つ流速も遅
い（第５図も参照。この第５図は整流板付近の周方向平
均流速の測定結果を示す。）のに対し、整流板８の下流
側の領域Ｂでは、かなり乱れの多い乱流で且つ流速もか
なり大きい（第５図参照）ことが判った。In this way, if the current plate 8 is provided on the downstream side of the head support system, the upstream side of the current plate 8 will be In region A, #1y is in a clean laminar flow state and the flow velocity is slow (see also Figure 5. This figure shows the measurement results of the circumferential average flow velocity near the rectifier plate). It was found that in region B on the downstream side, the flow was quite turbulent and the flow velocity was also quite high (see Fig. 5).

このように、第４図の位置Ｐにヘッド支持系を配置し、
その下流側に整流板８を設置すれば、　　・、位置Ｐで
の平均流速は遅くなり、層流れの乱れは少なくなる。一
般に、流体力は流速の２乗に比例するから、上述の如く
、流速が遅くなると、加振力が大幅に減少されることと
なる。つまり、振動抑制効果を向上させることが出来、
読取り、書込みエラーも少なくなる。その効果は高記録
、密度の場合に有効に効いて来るので、そのような装置
に有用性を与える。なお、こ＼で流速はグイスフ間流速
であり、スライダを浮上させているディスクのごく近傍
の流れには殆んど影響しないためスライダ浮上特性に関
しては通常とまったく異なるところはない。In this way, the head support system is placed at position P in FIG.
If the straightening plate 8 is installed on the downstream side, the average flow velocity at position P will be slowed down, and the disturbance of the laminar flow will be reduced. Generally, fluid force is proportional to the square of the flow velocity, so as the flow velocity becomes slower, the excitation force is significantly reduced, as described above. In other words, the vibration suppression effect can be improved,
Read and write errors are also reduced. The effect becomes more effective at high recording densities, giving such devices utility. Note that the flow velocity here is the Guisphere flow velocity, and it has almost no effect on the flow in the immediate vicinity of the disk on which the slider is floating, so there is no difference at all in the slider floating characteristics from normal.

鼻７）１発明の効果 以上述べたように、本発明によれば、 （１１ヘッド支持系の空気流による振動を高度に抑制し
、 （２）　　これにより読取り、書込みのエラーを少なく
し、高記録密度装置の実現を容易にする等の効果が得ら
れる。Nose 7) 1. Effects of the Invention As mentioned above, according to the present invention, (11) the vibration caused by the air flow in the head support system is highly suppressed; (2) this reduces errors in reading and writing; Effects such as facilitating the realization of a recording density device can be obtained.

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

第１図は従来装置を示す図、第２図は本発明の一実施例
を示す図、第３図は本発明装置に用いられる整流板の斜
視図、第４図はディスク間の空気流の可視表示を模式的
に示す図、第５図は整流板付近の周方向平均流速を示す
図である。 図中、２は磁気ディスク、３はヘッド支持系、８は整流
板である。 特許出願人　富士通株式会社 第１図 第３図 第４図 第２図FIG. 1 is a diagram showing a conventional device, FIG. 2 is a diagram showing an embodiment of the present invention, FIG. 3 is a perspective view of a rectifying plate used in the device of the present invention, and FIG. 4 is a diagram showing air flow between disks. FIG. 5, which is a diagram schematically showing the visible display, is a diagram showing the average flow velocity in the circumferential direction near the rectifier plate. In the figure, 2 is a magnetic disk, 3 is a head support system, and 8 is a rectifying plate. Patent applicant: Fujitsu Limited Figure 1 Figure 3 Figure 4 Figure 2

Claims (1)

【特許請求の範囲】[Claims] 情報記録再生ディスクへのアクセスに用いられるヘッド
支持系の下流側に整流板を設けたことを特徴とする情報
記録再生ディスク装置。An information recording/reproducing disk device characterized in that a current plate is provided on the downstream side of a head support system used for accessing the information recording/reproducing disk.
JP20481382A 1982-11-22 1982-11-22 Information recording and reproducing disk device Granted JPS5994273A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20481382A JPS5994273A (en) 1982-11-22 1982-11-22 Information recording and reproducing disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20481382A JPS5994273A (en) 1982-11-22 1982-11-22 Information recording and reproducing disk device

Publications (2)

Publication Number Publication Date
JPS5994273A true JPS5994273A (en) 1984-05-30
JPH0125160B2 JPH0125160B2 (en) 1989-05-16

Family

ID=16496795

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20481382A Granted JPS5994273A (en) 1982-11-22 1982-11-22 Information recording and reproducing disk device

Country Status (1)

Country Link
JP (1) JPS5994273A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60136980A (en) * 1983-12-26 1985-07-20 Hitachi Ltd Magnetic disc device
US4821130A (en) * 1987-09-04 1989-04-11 Digital Equipment Corporation Disk extender baffles
WO2001097221A2 (en) * 2000-06-14 2001-12-20 Seagate Technology Llc Drive level flow-field conditioning to reduce flow field turbulence
WO2003021596A1 (en) * 2001-08-31 2003-03-13 3M Innovative Properties Company Disk drive having airflow adjusting mechanism and thin-plate member incorporated therein
KR100421054B1 (en) * 2002-03-25 2004-03-04 삼성전자주식회사 Hard disk drive having a means for reducing disk fluttering
US6961219B2 (en) 2001-08-31 2005-11-01 3M Innovative Properties Company Disk drive head positioner with thin-film air-flow adjusting mechanism, thin film member and method of manufacturing
US7072140B2 (en) 2001-08-31 2006-07-04 3M Innovative Properties Company Disk drive having airflow adjusting mechanism and thin-plate member incorporated therein
JP2007323788A (en) * 2006-06-05 2007-12-13 Hitachi Global Storage Technologies Netherlands Bv Magnetic disk apparatus

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0447918B2 (en) * 1983-12-26 1992-08-05 Hitachi Ltd
JPS60136980A (en) * 1983-12-26 1985-07-20 Hitachi Ltd Magnetic disc device
US4821130A (en) * 1987-09-04 1989-04-11 Digital Equipment Corporation Disk extender baffles
GB2379321B (en) * 2000-06-14 2004-04-21 Seagate Technology Llc Drive level flow-field conditioning to reduce flow field turbulence
WO2001097221A2 (en) * 2000-06-14 2001-12-20 Seagate Technology Llc Drive level flow-field conditioning to reduce flow field turbulence
WO2001097221A3 (en) * 2000-06-14 2002-06-06 Seagate Technology Llc Drive level flow-field conditioning to reduce flow field turbulence
GB2379321A (en) * 2000-06-14 2003-03-05 Seagate Technology Llc Drive level flow-field conditioning to reduce flow field turbulence
US6989959B2 (en) * 2000-06-14 2006-01-24 Seagate Technology Llc Drive level flow-field conditioning to reduce flow field turbulence
WO2003021596A1 (en) * 2001-08-31 2003-03-13 3M Innovative Properties Company Disk drive having airflow adjusting mechanism and thin-plate member incorporated therein
US6961219B2 (en) 2001-08-31 2005-11-01 3M Innovative Properties Company Disk drive head positioner with thin-film air-flow adjusting mechanism, thin film member and method of manufacturing
US7072140B2 (en) 2001-08-31 2006-07-04 3M Innovative Properties Company Disk drive having airflow adjusting mechanism and thin-plate member incorporated therein
KR100421054B1 (en) * 2002-03-25 2004-03-04 삼성전자주식회사 Hard disk drive having a means for reducing disk fluttering
JP2007323788A (en) * 2006-06-05 2007-12-13 Hitachi Global Storage Technologies Netherlands Bv Magnetic disk apparatus

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Publication number Publication date
JPH0125160B2 (en) 1989-05-16

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