JPS62110679A - Loader and unloader for floating type slider - Google Patents
Loader and unloader for floating type sliderInfo
- Publication number
- JPS62110679A JPS62110679A JP25125685A JP25125685A JPS62110679A JP S62110679 A JPS62110679 A JP S62110679A JP 25125685 A JP25125685 A JP 25125685A JP 25125685 A JP25125685 A JP 25125685A JP S62110679 A JPS62110679 A JP S62110679A
- Authority
- JP
- Japan
- Prior art keywords
- slider
- medium
- leaf spring
- recording medium
- loading
- 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
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おけるスライダのロード・
アンロード装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is applicable to loading and unloading of sliders in magnetic disk devices.
This invention relates to an unloading device.
従来の技術
従来より磁気ディスク装置においては、媒体の走行によ
りディスクヘッド間に発生する動圧を利用して、記録媒
体上に微少な隙間を一定に保ち浮上する動圧型浮上式ス
ライダが用いられている。Conventional technology Conventionally, magnetic disk drives have used hydrodynamic floating sliders that fly above the recording medium while keeping a constant minute gap by using the dynamic pressure generated between the disk heads as the medium travels. There is.
この浮動式スライダの磁気変換素子は記録媒体と近接す
る程高い記録密度と高出力を得るため、スライダを低浮
上化することが求められる。この実現のために、媒体、
ヘッド各々の表面の表面性の向上が図られている。The magnetic transducer of this floating slider obtains higher recording density and output as it approaches the recording medium, so the slider must be lower in flying height. To achieve this, the medium,
The surface properties of each head are improved.
発明が解決しようとする問題点
この浮上式スライダをコンタクト・スタート・ストップ
(C3S)方式で用いる場合、媒体の回転停止中、磁気
記録媒体面とスライダ面が接触しており、長時間放置さ
れたとき、記録媒体上にスライダ面が密着し容易に離れ
ない現象が生ずる。Problems to be Solved by the Invention When this floating slider is used in the contact start/stop (C3S) method, the magnetic recording medium surface and the slider surface are in contact with each other while the medium is stopped rotating, and the slider surface is left unattended for a long time. At this time, a phenomenon occurs in which the slider surface comes into close contact with the recording medium and cannot be easily removed.
この密着状態でディスクの回転を開始すると、媒体面に
傷をつけ、記録情報を破壊するだけでなく、ヘッド・フ
レクシュア等のアセンブリ機構をも破壊する可能性があ
った。If the disk begins to rotate in this closely-contact state, there is a possibility that it will not only damage the medium surface and destroy the recorded information, but also destroy the assembly mechanism such as the head flexure.
また、媒体面は完全な鏡面でなく、任意の相さと、うね
りがあるため媒体の始動時や停止直前の低速時では浮上
せずに接触して走行し、スライダ、媒体の磨耗が生ずる
ことがあった。In addition, the media surface is not a perfect mirror surface, but has an arbitrary shape and undulations, so when the media starts or at low speed just before stopping, it runs in contact without floating, which can cause wear on the slider and media. there were.
問題点を解決するための手段
本発明は媒体、スライダ間を、停止中及び始動や停止の
直前などスライダの非浮上時は、動圧がスライダに生じ
ない程度に離しておき、一定回転後スライダをロードし
、回転中にアンロード機構をとる。その機構は媒体一定
回転中、スライダ前端より媒体面へ近付けることで、安
定な浮上状態へ遷移せしめるロード機構であり、アンロ
ード時は後端より離して動圧を減じ、媒体よりスライダ
ロード機構においてディスクとの接触もな(、媒体、ス
ライダ面の磨耗及び傷等の発生もなく、かつディスクと
の密着も生じない。Means for Solving the Problems The present invention maintains a distance between the medium and the slider to such an extent that no dynamic pressure is generated on the slider when the slider is not floating, such as when the slider is stopped or immediately before starting or stopping, and after a certain rotation, the slider is loaded and has an unloading mechanism during rotation. The mechanism is a loading mechanism that transitions to a stable flying state by moving the slider closer to the media surface than the front end during constant rotation of the medium.When unloading, move it away from the rear end to reduce dynamic pressure, and the slider loading mechanism is moved closer to the media than the media. There is no contact with the disk (no wear or scratches on the media or slider surface, and no close contact with the disk).
実施例
以下本発明の浮上式スライダのロード・アンロード装置
の一実施例について説明する。本実施例で使用される浮
上式スライダは自己荷重式の負圧型スライダである。上
記スライダ1は、板バネ状のフレクテュア2の略中心に
取り付けられて、そのフレクテュア2はまたアーム3に
固定される。Embodiment An embodiment of the floating slider loading/unloading device of the present invention will be described below. The floating slider used in this embodiment is a self-loading negative pressure slider. The slider 1 is attached approximately to the center of a leaf spring-like flexure 2, and the flexure 2 is also fixed to an arm 3.
上記スライダ、フレクテュアのアセンブリ状態にて、フ
レクテュア2はスライダ1の垂直方向及びスライダ中心
回りの回転等の自由度を有する。板バネ状のフレクテュ
ア2に対してスライダの反対側に、ローディング用の第
2の板バネ6が配されている。その第1の板バネ4の一
端はアーム3に固定されて、他端はスライダ方向へ略直
角に曲げられ、その先端5は尖っている。この先端5が
第2図に示すように外部の力によってスライダ1の方向
へ曲げられた時、スライダ1の中心より前端寄りに位置
するフレクシエア2上の一点を押すように構成されてい
る。また、第2の板バネ6も一端はアーム3に固定され
、他端はスライダ1の方向へ曲げられ、その尖った先端
7はフレクテュア2のスライダ1の背面の中心より後方
寄りに位置する点に接着されている。この第2の板バネ
6のバネ定数はフレクテュア2のバネ定数に対して充分
に弱(設定している。第4図にスライダ1と媒体10の
間の圧力の関係を示す。第4図Aにはスライダ1を前の
めりに傾けた状態を示しており、スライダ1を前のめり
に傾けるとスライダ1の前部と媒体10の間の圧力が高
くなっていることがわかる。スライダ1は媒体の回転停
止中及び回転中も非浮上時は、回転による動圧が生じず
媒体との接触等が無いよう0.1mm以上離している。In the assembled state of the slider and flexure, the flexure 2 has degrees of freedom such as the vertical direction of the slider 1 and rotation around the center of the slider. A second leaf spring 6 for loading is arranged on the opposite side of the slider to the leaf spring-shaped flexure 2. One end of the first leaf spring 4 is fixed to the arm 3, the other end is bent at a substantially right angle toward the slider, and its tip 5 is pointed. When this tip 5 is bent toward the slider 1 by an external force as shown in FIG. 2, it is configured to push a point on the flexiair 2 located closer to the front end than the center of the slider 1. Also, one end of the second leaf spring 6 is fixed to the arm 3, and the other end is bent toward the slider 1, and its sharp tip 7 is located toward the rear of the center of the back surface of the slider 1 of the flexure 2. is glued to. The spring constant of this second leaf spring 6 is set to be sufficiently weaker than that of the flexure 2. Fig. 4 shows the relationship between the pressure between the slider 1 and the medium 10. Fig. 4A shows the slider 1 tilted forward, and it can be seen that when the slider 1 is tilted forward, the pressure between the front part of the slider 1 and the medium 10 increases.The slider 1 stops the rotation of the medium. During the rotation and when not floating, the distance is 0.1 mm or more so that no dynamic pressure is generated due to rotation and there is no contact with the medium.
これは以下の理由による。つまり動圧が生じないよう媒
体とスライダの間に保つ間隔は10μmもあれば充分で
あるが、回転中の媒体振動やアセンブリにおける組立交
差を考慮する必要がある。This is due to the following reasons. In other words, it is sufficient to maintain a distance of 10 .mu.m between the medium and the slider so as not to generate dynamic pressure, but it is necessary to take into account the vibration of the medium during rotation and the assembly overlap in the assembly.
回転中の媒体の振動の振幅は最大50μm程度もあり、
また組立交差は通常40μm以下にすることは難しい。The amplitude of the vibration of the rotating medium is about 50 μm at maximum,
Further, it is usually difficult to reduce the assembly intersection to 40 μm or less.
よって上記0.1mm程度ヘッド、媒体を離してお(必
要がある。Therefore, it is necessary to separate the head and medium by about 0.1 mm.
この状態からスライダを媒体上ヘロードする時、電磁ソ
レノイド8によって板バネ4を押すことで、板バネ4の
先端5はスライダ背面の中心より前端側を押し媒体10
の面に前のめりの姿勢で接近させる。この時、第4図A
に示すようにスライダ前部には、媒体・スライダを接触
をおこさせない程度に充分な正圧力を発生し、以降スラ
イダ後端が近づき安定な浮上姿勢へ遷移する。最後に電
磁ソレノイド8は元に戻り、これに伴い第1の板バネ4
も元に戻り、フレクテュア2及びスライダ1はフレクテ
ュア2の剛性とスライダの動圧がつりあい安定な浮上状
態へ移行する。When loading the slider onto the medium from this state, the electromagnetic solenoid 8 pushes the leaf spring 4, so that the tip 5 of the leaf spring 4 pushes the front end of the slider towards the medium 10 from the center of the rear surface.
approach the surface while leaning forward. At this time, Figure 4A
As shown in , sufficient positive pressure is generated at the front of the slider to prevent the medium from coming into contact with the slider, and thereafter the rear end of the slider approaches and transitions to a stable flying position. Finally, the electromagnetic solenoid 8 returns to its original state, and along with this, the first leaf spring 4
The flexure 2 and the slider 1 return to their original state, and the rigidity of the flexure 2 and the dynamic pressure of the slider are balanced, and the flexure 2 and the slider 1 shift to a stable floating state.
一方、アンローディング時は第3図に示すように第2の
板バネ6を電磁ソレノイド等の手段でスライダ1と反対
方向へ引く。すると、スライダ1に前のめりになるよう
なモーメントが加わる。この際、ディスクの回転を停止
すると動圧が減少しフレクテュア2の剛性によって、ス
ライダ1は媒体10から離れようとする。この時は、第
2の板バネ6によるモーメント力によって、スライダ1
は後端より媒体10より離れる。したがって、ロードの
時と同じ(第4図Aに示すように前部に圧力が高く、デ
ィスクとスライダが接触することなくアンロードできる
。On the other hand, during unloading, the second leaf spring 6 is pulled in the opposite direction to the slider 1 by means such as an electromagnetic solenoid, as shown in FIG. Then, a moment is applied to the slider 1 that causes it to lean forward. At this time, when the rotation of the disk is stopped, the dynamic pressure decreases and the slider 1 tends to move away from the medium 10 due to the rigidity of the flexure 2. At this time, the slider 1 is moved by the moment force from the second leaf spring 6.
is separated from the medium 10 from the rear end. Therefore, the same pressure is applied at the front as during loading (as shown in FIG. 4A), and unloading can be performed without the disk and slider coming into contact.
ロード時におけるスライダ1と媒体10の面との距離の
時間的変化を第4図に示す。動圧を生じない距離よりサ
ブミクロンの安定な浮上状態へ適当な振動を繰り返しな
がら、媒体と接触することを接触させることなく、ロー
ド・アンロードが可能でスライダ、媒体の磨耗、傷もな
く、密着現象もなくなる。FIG. 4 shows temporal changes in the distance between the slider 1 and the surface of the medium 10 during loading. Loading and unloading is possible without contacting the media while repeating appropriate vibrations to a stable floating state of submicrons from a distance that does not generate dynamic pressure, and the slider and media are tightly attached without wear or damage. The phenomenon will also disappear.
第1図は本発明の浮上式スライダのロード・アンロード
装置の一実施例の外観を示す下面斜視図、第2図は同ロ
ード状態を示す側面図、第3図は同アンロード状態を示
す側面図、第4図は同圧力分布図、第5図は同ロード時
の浮上量の変化を示すグラフである。
1・・・・スライダ 2・・・・フレクシュア
3・・・・アーム 4・・・・第1の板バネ
6・・・・第2の板バネ 8・・・・電磁ソレノイド
10・・・・媒 体
代理人の氏名 弁理士 中尾敏男 はが1名第1図
第2図
第3図Fig. 1 is a bottom perspective view showing the external appearance of one embodiment of the floating slider loading/unloading device of the present invention, Fig. 2 is a side view showing the same in the loading state, and Fig. 3 shows the same in the unloading state. A side view, FIG. 4 is a pressure distribution diagram, and FIG. 5 is a graph showing changes in flying height during loading. 1...Slider 2...Flexure 3...Arm 4...First plate spring 6...Second plate spring 8...Electromagnetic solenoid 10... Name of media agent: Patent attorney Toshio Nakao (1 person) Figure 1 Figure 2 Figure 3
Claims (2)
できるように移動自在に設け、前記スライダが前記記録
媒体に接近する時スライダの前端より記録媒体上に接近
するようにロードし、前記スライダが前記記録媒体より
離れる時後端より記録媒体より離れるようアンロードす
るようしたことを特徴とする浮上式スライダのロード・
アンロード装置。(1) A floating slider is provided movably so that it can approach or leave the magnetic medium, and when the slider approaches the recording medium, it is loaded so that it approaches the recording medium from the front end of the slider, and the slider Loading/loading of a floating type slider, characterized in that when the slider leaves the recording medium, it is unloaded so that the rear end is separated from the recording medium.
Unloading device.
いることを特徴とする特許請求の範囲第1項記載の浮上
式スライダのロード・アンロード装置。(2) The floating slider loading/unloading device according to claim 1, wherein a negative pressure slider is used as the dynamic pressure floating slider.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP25125685A JPS62110679A (en) | 1985-11-08 | 1985-11-08 | Loader and unloader for floating type slider |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP25125685A JPS62110679A (en) | 1985-11-08 | 1985-11-08 | Loader and unloader for floating type slider |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS62110679A true JPS62110679A (en) | 1987-05-21 |
Family
ID=17220063
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP25125685A Pending JPS62110679A (en) | 1985-11-08 | 1985-11-08 | Loader and unloader for floating type slider |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62110679A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04285777A (en) * | 1991-03-13 | 1992-10-09 | Sharp Corp | Floating type head and its assembly and adjusting method |
JPH04345977A (en) * | 1991-05-23 | 1992-12-01 | Sharp Corp | Recording medium loading method for disk recording/ reproducing device |
US5828512A (en) * | 1991-03-01 | 1998-10-27 | Sharp Kabushiki Kaisha | Information processing apparatus having a floating-type head |
-
1985
- 1985-11-08 JP JP25125685A patent/JPS62110679A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5828512A (en) * | 1991-03-01 | 1998-10-27 | Sharp Kabushiki Kaisha | Information processing apparatus having a floating-type head |
JPH04285777A (en) * | 1991-03-13 | 1992-10-09 | Sharp Corp | Floating type head and its assembly and adjusting method |
JPH04345977A (en) * | 1991-05-23 | 1992-12-01 | Sharp Corp | Recording medium loading method for disk recording/ reproducing device |
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