JPH0836851A - Magnetic recorder - Google Patents
Magnetic recorderInfo
- Publication number
- JPH0836851A JPH0836851A JP17067794A JP17067794A JPH0836851A JP H0836851 A JPH0836851 A JP H0836851A JP 17067794 A JP17067794 A JP 17067794A JP 17067794 A JP17067794 A JP 17067794A JP H0836851 A JPH0836851 A JP H0836851A
- Authority
- JP
- Japan
- Prior art keywords
- slider
- contact
- elastic spring
- recording medium
- magnetic recording
- 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
Landscapes
- Supporting Of Heads In Record-Carrier Devices (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は磁気ディスク装置，磁気
カード装置，フレキシブル装置などのコンピュータの外
部記憶装置に用いられる磁気記録装置に係り、特に、高
密度記録再生を実現できるようにした磁気記録装置に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic recording device used for an external storage device of a computer such as a magnetic disk device, a magnetic card device, and a flexible device, and more particularly to a magnetic recording device capable of realizing high density recording / reproducing. Regarding the device.
【０００２】[0002]
【従来の技術】従来の主な磁気記録再生技術は、例え
ば、特開昭49−121514号公報に記載のように、磁気ヘッ
ドスライダに２本の長手方向に伸びたレールを設け、磁
気記録媒体の走行により生じる空気流によって、磁気ヘ
ッドスライダのレール表面に圧力を発生させることによ
り、磁気記録媒体上に磁気ヘッドスライダを非接触で浮
上させ記録再生を行う空気ベアリング方式のものであっ
た。一般に、記録密度を高密度化するためには、磁気ヘ
ッドスライダと磁気記録媒体とをより接近させる必要が
ある。従来技術では、磁気ヘッドスライダと磁気記録媒
体との間隔(浮上量)が空気の平均自由行程(０.０６４μ
ｍ）以下になると、磁気ヘッドスライダと磁気記録媒体
間に存在する空気分子の数が少なくなり、空気の圧力が
発生しにくくなる。そのため磁気ヘッドスライダの浮上
が不安定になり、磁気ヘッドスライダが磁気記録媒体に
接触することにより摺動破壊の危険性が増大する。従っ
て、従来の主流技術では、磁気ヘッドスライダと磁気記
録媒体との間隔を０.０６４μm以下に小さくすると共
に、ヘッドクラッシュの問題を軽減し、磁気記録再生装
置の信頼性を得ることは困難であり、しかも高記録密度
化には適さなくなってきているという問題があった。2. Description of the Related Art A conventional main magnetic recording / reproducing technique is to provide a magnetic head slider with two rails extending in the longitudinal direction, as described in, for example, Japanese Patent Laid-Open Publication No. Sho 49-121514. The air bearing system is one in which recording and reproduction are performed by causing pressure to be generated on the rail surface of the magnetic head slider by the air flow generated by the running of the magnetic head slider to float the magnetic head slider on the magnetic recording medium in a non-contact manner. Generally, in order to increase the recording density, it is necessary to bring the magnetic head slider and the magnetic recording medium closer to each other. In the prior art, the distance (flying height) between the magnetic head slider and the magnetic recording medium is the mean free path of air (0.064 μm).
When it is less than m), the number of air molecules existing between the magnetic head slider and the magnetic recording medium is small, and it becomes difficult to generate air pressure. Therefore, the flying of the magnetic head slider becomes unstable, and the risk of sliding damage increases when the magnetic head slider comes into contact with the magnetic recording medium. Therefore, in the conventional mainstream technology, it is difficult to reduce the distance between the magnetic head slider and the magnetic recording medium to 0.064 μm or less, reduce the problem of head crash, and obtain the reliability of the magnetic recording / reproducing apparatus. Moreover, there is a problem that it is not suitable for higher recording density.
【０００３】そのような状況の中、上記課題を解決する
一手法として特開平3−178017 号公報に記載のようにス
ライダを軽荷重，軽質量にすることで、磁気記録媒体と
磁気ヘッドスライダを接触させながらデータの記録，読
みだしを行う方式が提案されている（図１）。Under such circumstances, as a method for solving the above-mentioned problems, the magnetic recording medium and the magnetic head slider are separated by making the slider lightly loaded and lightly massed as described in JP-A-3-178017. A method has been proposed in which data is recorded and read while making contact (Fig. 1).
【０００４】[0004]
【発明が解決しようとする課題】しかし、単に軽荷重，
軽質量にしたのみでは、ディスク回転に伴うディスク面
の上下動（面振れ）により記録再生素子が磁気ディスク
面と大きなすき間が生じたり、磁気ヘッドスライダが異
物衝突の際にヘッドジャンプがおきて、安定に信号の読
みだし，書き出しができないという問題がある。However, a light load,
With only a light weight, the recording / reproducing element creates a large gap with the magnetic disk surface due to vertical movement (surface wobbling) of the disk surface due to disk rotation, or a head jump occurs when the magnetic head slider collides with a foreign object. There is a problem that signals cannot be stably read and written.
【０００５】またこれらの技術によれば、磁気ヘッドス
ライダの微小化に伴って、それを支持する弾性ばねの押
し付け剛性を低くしなければならない。そのような低剛
性な弾性ばねを達成させるには必然的に支持機構Ｌの長
さを長くする必要がある。その結果、ねじり剛性が低下
してしまい、磁気ヘッドスライダのシーク動作つまり、
半径方向への移動動作時にも悪影響をおよぼすので好ま
しくない。Further, according to these techniques, as the magnetic head slider is miniaturized, the pressing rigidity of the elastic spring supporting it must be lowered. In order to achieve such a low-rigidity elastic spring, it is inevitably necessary to increase the length of the support mechanism L. As a result, the torsional rigidity decreases, and the seek operation of the magnetic head slider, that is,
It is not preferable because it also has an adverse effect on the movement operation in the radial direction.
【０００６】本発明の目的は、ディスクの面振れや初期
の組立て誤差、またはシーク動作などにより押し付け荷
重の変動や磁気ヘッドスライダの回転及び振動が実質的
に生じない高密度磁気ディスク装置を提供することにあ
る。An object of the present invention is to provide a high-density magnetic disk device in which fluctuations in pressing load and rotation and vibration of the magnetic head slider do not substantially occur due to surface wobbling of the disk, initial assembly error, or seek operation. Especially.
【０００７】[0007]
【課題を解決するための手段】本発明は上記の課題を解
決するために以下の手段を設けた。それについて図を用
いて説明する。図２は本発明の斜視図を示したものであ
り、磁気記録媒体対向面からみた図である。記録再生素
子部２１を持つ第１スライダ２２を第１弾性ばね２３に
支持させ、その負荷力によって磁気記録媒体と接触させ
ると共に、第１弾性ばねは第２スライダ２４に支持さ
れ、さらに第２スライダは第２弾性ばね２５の負荷力に
よって磁気記録媒体と接触を行う構成とする。また、第
２スライダには少なくとも三つの接触パッド２６，２
６′，２６″を持つ構成とする。さらに、磁気記録媒体
と接触する第２スライダに第２弾性ばねから負荷される
荷重を３ｇ〜５０mgにし、かつ磁気記録媒体と接触する
第１スライダに第１弾性ばねから負荷される荷重を５０
mg以下にすることにより磁気記録媒体面上を安定に摺動
させることが可能となる。The present invention provides the following means in order to solve the above problems. This will be described with reference to the drawings. FIG. 2 is a perspective view of the present invention, which is viewed from the magnetic recording medium facing surface. A first slider 22 having a recording / reproducing element portion 21 is supported by a first elastic spring 23 and brought into contact with a magnetic recording medium by its load force, and the first elastic spring is supported by a second slider 24, and further the second slider. Is configured to make contact with the magnetic recording medium by the load force of the second elastic spring 25. Also, the second slider has at least three contact pads 26, 2
6 ', 26''. Further, the load applied from the second elastic spring to the second slider in contact with the magnetic recording medium is set to 3 g to 50 mg, and the first slider in contact with the magnetic recording medium is 1 Load from elastic spring is 50
When the amount is less than mg, it becomes possible to slide the magnetic recording medium surface stably.
【０００８】さらには接触パッド部及び第１スライダの
摺動面（図３の３１，３２，３３，３４）には耐摩耗性
材料で形成されているかあるいは耐摩耗性材料を被覆す
ることにより、信頼性の高い高記録密度磁気記録装置を
提供することができる。Furthermore, the contact pad portion and the sliding surface (31, 32, 33, 34 in FIG. 3) of the first slider are formed of a wear resistant material or are coated with a wear resistant material. A highly reliable high recording density magnetic recording device can be provided.
【０００９】[0009]
【作用】上記の構成による作用について図を用いて説明
する。図４はディスク回転に伴うディスク面の上下動
（面振れ）により、本発明の磁気ヘッドスライダが仮に
前傾し、後パッド部４２が磁気記録媒体面から浮き上が
った状態を示し、ピッチング方向での断面図と力線図を
合わせて示したものである。前パッド部４１には接触に
よる垂直抗力（接触反力）が働くので、そのトルクＮ・
Ｌにより第２スライダはピボット位置４３中心に後パッ
ド部は押し下げられる。そして、前パッド部の接触反力
は軽減され、前パッド部及び後パッド部が等均一の接触
反力のところで第２スライダの姿勢は安定する。その結
果、第２スライダは磁気記録媒体表面と安定して接触摺
動ができる。ローリング方向の場合もピッチング方向の
場合と同様に、安定して接触摺動ができる。さらに、記
録再生素子を具備した第１スライダは第２スライダに支
持されているので、第２スライダと共に記録媒体面に倣
うことが可能である。そして、第１スライダは第２スラ
イダの接触パッドの中心位置にあるので、第２スライダ
の変動によるスペーシングロスをΔｈとすると、記録再
生素子を搭載した第１スライダのスペーシングロスはΔ
ｈ／２と低減でき、安定に記録再生が可能となる。The operation of the above structure will be described with reference to the drawings. FIG. 4 shows a state in which the magnetic head slider of the present invention is tilted forward and the rear pad portion 42 is lifted up from the magnetic recording medium surface due to the vertical movement (surface deflection) of the disk surface due to the rotation of the disk. The cross-sectional view and the line of force are shown together. Since a vertical reaction force (contact reaction force) acts on the front pad portion 41 due to the contact, the torque N.
By L, the second slider is pushed down to the center of the pivot position 43 and the rear pad portion is pushed down. Then, the contact reaction force of the front pad portion is reduced, and the posture of the second slider is stabilized at a uniform contact reaction force of the front pad portion and the rear pad portion. As a result, the second slider can stably slide in contact with the surface of the magnetic recording medium. In the rolling direction as well, as in the pitching direction, stable contact and sliding can be performed. Further, since the first slider having the recording / reproducing element is supported by the second slider, it is possible to follow the surface of the recording medium together with the second slider. Since the first slider is located at the center position of the contact pad of the second slider, if the spacing loss due to the fluctuation of the second slider is Δh, the spacing loss of the first slider equipped with the recording / reproducing element is Δ.
It can be reduced to h / 2 and stable recording / reproducing becomes possible.
【００１０】また本技術における押し付けばね剛性は第
１弾性ばねの剛性と第２弾性ばねの剛性によって決定さ
れるので、支持機構ｌの長さを長くせずに低剛性化が図
れ、ねじり剛性を高めることができる。その結果、磁気
ヘッドスライダのシーク動作つまり、半径方向への移動
動作時にも悪影響を及ぼさない。Further, since the pressing spring rigidity in the present technology is determined by the rigidity of the first elastic spring and the rigidity of the second elastic spring, it is possible to reduce the rigidity without increasing the length of the supporting mechanism l and to improve the torsional rigidity. Can be increased. As a result, the seek operation of the magnetic head slider, that is, the moving operation in the radial direction is not adversely affected.
【００１１】また、磁気ヘッドスライダの第１スライ
ダ，第２スライダとも、記録媒体との接触部は球面もし
くは滑らかな曲面にすることにより、スティックスリッ
プやスライダの姿勢変化に伴う接触応力集中を起こさず
摺動に対する信頼性は向上できるので好ましい。Further, in both the first slider and the second slider of the magnetic head slider, the contact portion with the recording medium is formed into a spherical surface or a smooth curved surface so that contact stress concentration due to stick slip and slider attitude change does not occur. It is preferable because the reliability against sliding can be improved.
【００１２】さらに、接触パッド部及び第１スライダの
摺動面はＳｉ，Ｚｒ，Ｔｉ，Ｔａ，Ｎｂ，Ｗ，Ｂの窒化
物あるいは炭化物から選ばれた材料で被覆させることに
より、耐摺動性が向上するので、特に好ましい。Further, the contact pad portion and the sliding surface of the first slider are covered with a material selected from nitrides or carbides of Si, Zr, Ti, Ta, Nb, W and B, so that the sliding resistance is improved. Is particularly preferable because it improves
【００１３】[0013]
【実施例】本実施例１の磁気ヘッドスライダについて図
２に示す。以下これの製造方法について以下に記載す
る。EXAMPLE A magnetic head slider of Example 1 is shown in FIG. Hereinafter, the manufacturing method thereof will be described below.
【００１４】第１スライダについてはＡｌ2Ｏ3−ＴｉＣ
系，ＺｒＯ2 焼結体からなる基板を図５（ａ）に示す様
に長さａ０.４mm，幅ｂ０.２mm，高さｃ０.２mm と切り
出した。その端部には自己記録再生もしくは誘導型部に
よる記録，磁気抵抗効果による再生機能を有する記録再
生素子部を形成した。For the first slider, Al 2 O 3 --TiC
As shown in FIG. 5 (a), a substrate made of a ZrO 2 sintered body was cut into a length a of 0.4 mm, a width b of 0.2 mm and a height c of 0.2 mm. A recording / reproducing element portion having a self-recording / reproducing or recording by an induction type portion, and a reproducing function by a magnetoresistive effect was formed at the end portion.
【００１５】第１弾性ばねについては、ステンレス等の
金属材料あるいはポリイミドなどの高分子材料からでき
た三角片持ちばねを用いた。厚さ１０ないし２５μｍの
ステンレスの場合、長さＬは０.５mmないし０.８mm，横
幅Ｈは０.５mmないし１.２ｍｍ程度にした（図６）。こ
の時の押し付けばね係数は０．１ないし１.３mg／μｍ
とした。この構成とした第１弾性ばねを図５（ｂ）記載
の切り出しを行い、第１スライダに接着剤等により固定
した（図７）。As the first elastic spring, a triangular cantilever spring made of a metal material such as stainless steel or a polymer material such as polyimide is used. In the case of stainless steel having a thickness of 10 to 25 μm, the length L was set to 0.5 mm to 0.8 mm and the width H was set to about 0.5 mm to 1.2 mm (FIG. 6). The pressing spring coefficient at this time is 0.1 to 1.3 mg / μm
And The first elastic spring having this structure was cut out as shown in FIG. 5B and fixed to the first slider with an adhesive or the like (FIG. 7).
【００１６】第２スライダは、長さａ２mm,幅ｂ１.５m
m,厚さｃ０.８mmのＡｌ2Ｏ3−ＴｉＣ系，ＺｒＯ2 焼結
体からなる基板を用意し、図８記載のように、一辺の長
さが０.２mm，高さ０.４mmの接触パッド部及び第１弾性
ばね接着台座部８１を機械加工等により形成した。そし
て、第２スライダ接触パッド部と第１スライダの摺動面
が同一平面上にくるように第１スライダ台座部に接着剤
等により固定した。さらに、第１スライダの摺動面には
信頼性を向上させるために、厚さ５ｎｍないし１０ｎ
ｍ、第２スライダ接触パッド摺動面には３ｎｍないし５
ｎｍの厚さのカーボン材料をスパッタリング法，イオン
プレーディング法等により被覆することが好ましい。し
かし、記録再生素子部と磁気記録媒体との間隔が増大し
てしまうので、被覆膜厚は薄い方が好ましい。The second slider has a length a2 mm and a width b1.5 m.
A substrate composed of an Al 2 O 3 —TiC system and a ZrO 2 sintered body having a thickness of 0.8 mm and a thickness of c of 0.8 mm was prepared. As shown in FIG. 8, one side had a length of 0.2 mm and a height of 0.4 mm. The contact pad portion and the first elastic spring adhesive pedestal portion 81 are formed by machining or the like. Then, the second slider contact pad portion and the first slider were fixed to the first slider pedestal portion with an adhesive or the like so that the sliding surfaces thereof were on the same plane. Further, in order to improve reliability, the sliding surface of the first slider has a thickness of 5 nm to 10 n.
m, 3 nm to 5 on the sliding surface of the second slider contact pad
It is preferable to coat a carbon material having a thickness of nm by a sputtering method, an ion plating method, or the like. However, since the distance between the recording / reproducing element section and the magnetic recording medium increases, it is preferable that the coating film thickness is thin.
【００１７】第２弾性ばねは、ステンレス等の金属材料
あるいはポリイミドなどの高分子材料でできており、プ
レス成型，エッチング加工などにより成型される。ばね
長さ１０mmないし２０mm，幅５mmないし１０mm，厚さ２
５μｍとして、押し付け方向のばね係数を０.２ないし
０.０５mg／μｍとした。さらに第２スライダの中心位
置にジンバル機構を設けて第２スライダを接着した。The second elastic spring is made of a metal material such as stainless steel or a polymer material such as polyimide, and is molded by press molding, etching or the like. Spring length 10mm to 20mm, width 5mm to 10mm, thickness 2
The spring coefficient in the pressing direction was 0.2 to 0.05 mg / μm. Further, a gimbal mechanism was provided at the center position of the second slider to bond the second slider.
【００１８】このような構成で磁気ディスクの面上に使
用状態まで押し付けることにより、第１スライダと接触
パッド部とのカーボン被覆厚さの差が第１弾性ばねをた
わませる。そして、そのばね力により第１スライダに押
しつけ荷重が付加されることになる。本実施例での押し
つけ荷重は第２弾性ばねで３ｇないし５０mg，第１弾性
ばねで５０mg以下の負荷を与えた。By pressing the surface of the magnetic disk to the used state with such a structure, the difference in the carbon coating thickness between the first slider and the contact pad portion causes the first elastic spring to bend. Then, the spring force applies a pressing load to the first slider. The pressing load in this embodiment was 3 g to 50 mg applied to the second elastic spring and 50 mg or less applied to the first elastic spring.
【００１９】この磁気ヘッドスライダと磁気記録媒体と
を組み合わせて装置に組み込んだ。その結果、記録再生
素子部を搭載した第１スライダはディスクの走行方向や
半径方向の摩擦、あるいは面振れや組立て誤差等による
スペーシングロスが生じず、安定した接触式のスライダ
走行および高密度の記録再生が可能となった。This magnetic head slider and a magnetic recording medium were combined and incorporated in an apparatus. As a result, the first slider having the recording / reproducing element portion does not cause a spacing loss due to friction in the running direction or radial direction of the disk, surface wobbling, an assembly error, etc. Recording and playback became possible.
【００２０】図９には第２スライダの摺動パッド部が
０.５mm の曲率半径を持つものを示す。この場合、摺動
に対する信頼性は向上できるので好ましい。さらに、磁
気記録媒体と対抗する摺動面にスパッタリング法により
Ｃ材料を被覆することにより、ＣＳＳ強度が１５Ｋ回以
上と信頼性が高い磁気記録装置を提供できる。FIG. 9 shows the sliding pad portion of the second slider having a radius of curvature of 0.5 mm. In this case, reliability against sliding can be improved, which is preferable. Furthermore, by coating the C material on the sliding surface facing the magnetic recording medium by the sputtering method, it is possible to provide a highly reliable magnetic recording device having a CSS strength of 15K times or more.
【００２１】[0021]
【発明の効果】本発明によれば、磁気記録媒体と記録再
生素子とを安定して接触させながら記録再生を行うこと
ができ、信頼性が高く、記録密度の高い磁気記録装置を
提供できる。According to the present invention, it is possible to provide a magnetic recording apparatus having a high reliability and a high recording density, since recording and reproduction can be performed while the magnetic recording medium and the recording and reproducing element are in stable contact with each other.
【図１】軽質量，軽荷重スライダを用いた従来の磁気記
録装置の説明図。FIG. 1 is an explanatory diagram of a conventional magnetic recording device using a light weight and light load slider.
【図２】本発明の一実施例の斜視図。FIG. 2 is a perspective view of an embodiment of the present invention.
【図３】本発明の一実施例の接触摺動部の平面図。FIG. 3 is a plan view of a contact sliding portion according to an embodiment of the present invention.
【図４】本発明の作用の説明図。FIG. 4 is an explanatory view of the operation of the present invention.
【図５】本発明の第１スライダの説明図。FIG. 5 is an explanatory diagram of a first slider of the present invention.
【図６】本発明の第１弾性ばねの斜視図。FIG. 6 is a perspective view of a first elastic spring of the present invention.
【図７】本発明の第１スライダ及び第１弾性ばねの斜視
図。FIG. 7 is a perspective view of a first slider and a first elastic spring of the present invention.
【図８】本発明の第２スライダの斜視図。FIG. 8 is a perspective view of a second slider of the present invention.
【図９】摺動部が球面となる構成をした実施例の斜視
図。FIG. 9 is a perspective view of an embodiment in which the sliding portion has a spherical surface.
２１…磁気記録再生素子部、２２…第１スライダ、２３
…第１弾性ばね、２４…第２スライダ、２５…第２弾性
ばね、２６，２６′，２６″…第２スライダ接触パッド
部。21 ... Magnetic recording / reproducing element section, 22 ... First slider, 23
... first elastic spring, 24 ... second slider, 25 ... second elastic spring, 26,26 ', 26 "... second slider contact pad portion.
Claims (1)
行いながら記録再生を行う磁気ヘッドスライダと前記磁
気ヘッドスライダを支持する支持機構からなる磁気記録
装置において、記録再生素子を有する第１スライダと前
記第１スライダを第１弾性ばねに支持させ、前記第１弾
性ばねの負荷力によって前記第１スライダを前記磁気記
録媒体に接触させ、前記第１弾性ばねは第２スライダに
支持され、前記第２スライダは第２弾性ばねの負荷力に
よって磁気記録媒体と接触を行うことを特徴とする磁気
記録装置。1. A magnetic recording apparatus comprising a magnetic recording medium, a magnetic head slider for recording and reproducing while making contact with the magnetic recording medium, and a support mechanism for supporting the magnetic head slider, and a first slider having a recording and reproducing element. A first elastic spring is supported by a first elastic spring, the first elastic spring is brought into contact with the magnetic recording medium by a load force of the first elastic spring, and the first elastic spring is supported by a second slider, The magnetic recording apparatus wherein the second slider makes contact with the magnetic recording medium by the load force of the second elastic spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17067794A JPH0836851A (en) | 1994-07-22 | 1994-07-22 | Magnetic recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17067794A JPH0836851A (en) | 1994-07-22 | 1994-07-22 | Magnetic recorder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0836851A true JPH0836851A (en) | 1996-02-06 |
Family
ID=15909348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17067794A Pending JPH0836851A (en) | 1994-07-22 | 1994-07-22 | Magnetic recorder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0836851A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100734792B1 (en) * | 2003-05-19 | 2007-07-03 | 닛뽕소다 가부시키가이샤 | Insecticidal composition |
-
1994
- 1994-07-22 JP JP17067794A patent/JPH0836851A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100734792B1 (en) * | 2003-05-19 | 2007-07-03 | 닛뽕소다 가부시키가이샤 | Insecticidal composition |
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