JPS6265275A - Supporting body for magnetic head of magnetic disc device - Google Patents
Supporting body for magnetic head of magnetic disc deviceInfo
- Publication number
- JPS6265275A JPS6265275A JP20424585A JP20424585A JPS6265275A JP S6265275 A JPS6265275 A JP S6265275A JP 20424585 A JP20424585 A JP 20424585A JP 20424585 A JP20424585 A JP 20424585A JP S6265275 A JPS6265275 A JP S6265275A
- Authority
- JP
- Japan
- Prior art keywords
- pivot
- magnetic head
- magnetic
- spring plate
- head slider
- 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
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
- Supporting Of Heads In Record-Carrier Devices (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は磁気ディスク装置の磁気ヘッド支持体に係り、
特に回転運動する磁気ディスク上にジンバル機構を介し
て磁気ヘッドを支持する磁気ヘッド支持体に関するもの
である。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a magnetic head support of a magnetic disk device,
In particular, the present invention relates to a magnetic head support that supports a magnetic head on a rotating magnetic disk via a gimbal mechanism.
磁気ディスク装置に用いる空気ベアリング式磁気ヘッド
は、回転運動する磁気ディスクから諸種の応力を受ける
ために、磁気ディスクの回転運動時の表面形態の変化に
対応して磁気ヘッドの姿勢を追従させて正確なデータ読
取りを行う必要がある。そのために、従来より、例えば
特開昭５１−３９１１４号等に示されるように磁気ヘッ
ドスライダをピポットよりなるジンバル機構を介して支
承し、このピポットを支点として磁気ヘッドスライダを
Ｘ軸、Ｙ軸周りにピッチング、ローリング運動を行い得
るようにして、磁気ヘッドの姿勢を磁気ディスクの回転
運動時の表面形態の変化に追従できるようにしている。Air-bearing magnetic heads used in magnetic disk drives receive various types of stress from rotating magnetic disks, so the attitude of the magnetic head can be adjusted accurately by following changes in surface morphology during rotation of the magnetic disk. It is necessary to perform accurate data reading. To this end, conventionally, the magnetic head slider is supported via a gimbal mechanism consisting of a pivot, as shown in, for example, Japanese Patent Laid-Open No. 51-39114, and the magnetic head slider is supported around the X and Y axes using the pivot as a fulcrum. By making it possible to perform pitching and rolling movements, the attitude of the magnetic head can follow changes in the surface form of the magnetic disk during rotational movement.
ところで、このようなジンバル機構は、磁気ヘッドの追
従運動を可能にする他に、空気ベアリング式磁気ヘッド
の空気膜（空気ばね）との力のバランスを保つのに必要
な荷重を磁気ヘッドに負荷するために、ピポット支点が
磁気ヘッドアームに取付けた板ばねに接触して加圧され
るようにしである。しかしながら、このような板ばねと
ピポットの接触構造によれば、ピポット支点として磁気
ヘッドスライダがピッチング或いはローリングする時に
ピポットが微小な横すベリをおこして磁気ヘッドの運動
特性に悪影響を及ぼしたり、横すベリが長時間にわたり
繰返されることによってピポット部に摩耗が生じ磁気ヘ
ッドの運動に経時的な永久障害をもたらすおそれがあっ
た。By the way, such a gimbal mechanism not only enables the magnetic head to follow the motion, but also loads the magnetic head with the load necessary to maintain the force balance with the air film (air spring) of the air bearing type magnetic head. In order to do this, the pivot fulcrum comes into contact with a leaf spring attached to the magnetic head arm and is pressurized. However, with such a contact structure between the leaf spring and the pivot, when the magnetic head slider pitches or rolls as a pivot fulcrum, the pivot causes a slight horizontal deflection, which adversely affects the motion characteristics of the magnetic head, or causes horizontal deflection. If the sliding is repeated over a long period of time, the pivot portion may wear out, which may cause permanent damage to the movement of the magnetic head over time.
本発明は以上の点に鑑みてなされたものであり、その目
的とするところは、磁気ヘッドを支承するジンバル機構
のピポット部に横すべりと摩耗を防止して、追従特性に
優れ且つピポット部の経時劣化を防止することができる
磁気ヘッド支持体を提供することにある。The present invention has been made in view of the above points, and its purpose is to prevent side slipping and wear on the pivot portion of a gimbal mechanism that supports a magnetic head, to provide excellent tracking characteristics, and to improve the pivot portion over time. An object of the present invention is to provide a magnetic head support that can prevent deterioration.
〔発明の概要〕
本発明は上記目的を達成するために、空気ベアリング式
磁気ヘッドを搭載した磁気ヘッドスライダと、前記磁気
ヘッドを磁気ディスク面側に加圧するばねプレートと、
前記ばねプレートに接触するピポットを支点として前記
磁気ヘッドスライダをＸ軸、Ｙ軸周りにピッチング及び
ローリング運動を行い得るように支承するジンバル機構
とを備えてなる磁気ヘッド支持体において、前記ばねプ
レートにおける前記ピポットの加圧作用点となるピポッ
ト接触部位に、前記ピポットの曲率半径より大きな曲率
半径を有し且つこのピポットの突出高さを越えない深さ
を有するディンプルを形成したものである。[Summary of the Invention] In order to achieve the above object, the present invention provides a magnetic head slider equipped with an air bearing type magnetic head, a spring plate that presses the magnetic head toward the magnetic disk surface side,
a gimbal mechanism that supports the magnetic head slider so as to perform pitching and rolling motions around the X-axis and the Y-axis using a pivot in contact with the spring plate as a fulcrum; A dimple having a radius of curvature larger than the radius of curvature of the pivot and a depth not exceeding the protruding height of the pivot is formed at a contact portion of the pivot that serves as a pressure application point of the pivot.
以上の構成よりなる本発明によれば、ジンバルプレート
に設けたピポットがばねプレートに設けたディンプル内
周面に接触し、このピポットを支点として磁気ヘッドが
Ｘ軸、Ｙ軸周りに磁気ディスクの回転時にその表面形態
変化に対応してピッチング或いはローリング運動を行う
が、この場合、ピポットに横すべりするような力が働く
と、ばねプレートのディンプル内周面が曲面状に形成さ
れているために、ピポットを介して磁気ヘッドスライダ
が垂直方向（磁気ディスク方向）に空気ベアリングの空
気ばね（空気膜）をわずかに押圧し。According to the present invention having the above configuration, the pivot provided on the gimbal plate contacts the inner peripheral surface of the dimple provided on the spring plate, and the magnetic head rotates the magnetic disk around the X-axis and the Y-axis using the pivot as a fulcrum. Sometimes pitching or rolling movements occur in response to changes in the surface form. In this case, when a force that causes the pivot to slide sideways is applied, the dimple inner circumferential surface of the spring plate is formed in a curved shape, causing the pivot to slide. Through the magnetic head slider slightly presses the air spring (air film) of the air bearing in the vertical direction (magnetic disk direction).
空気ばね側におい′Ｃは、この力を抗する反力が増大し
この反力によってピポットが正常な位置に戻され、横す
ベリが防止される。On the air spring side, the reaction force that resists this force increases, and this reaction force returns the pivot to its normal position, thereby preventing it from rolling sideways.
本発明の一実施例を第１図及び第２図に基づき説明する
。An embodiment of the present invention will be described based on FIGS. 1 and 2.
第１図は磁気ディスク装置における磁気ヘッド支持体の
一部省略分解斜視図を示すもので、同図において１は磁
気ヘッドを有する空気ベアリング式の磁気ヘッドスライ
ダ、２はプレート面上にピボツＩ−３を形成してなるジ
ルバルプレートであり、磁気ヘッド１はジルバルプレー
ト２のピポツｌ−３を設けていない側の板面上に接着さ
れている。また、ジンバルプレー１−２の後端側はスポ
ット溶接等の結合手段を介してばねブレー１〜４に取付
けられており、この取付状態においてジンバルプレー１
−２のピポット３がばねプレート４に設けたディンプル
５の内周面に接触しており、このピポット３を支点とし
て磁気ヘッドスライダ１がジンバルブレート２を介して
Ｘ軸、Ｙ軸周りにピッチング及びローリング運動を行い
得るようにして支承されている。FIG. 1 shows a partially omitted exploded perspective view of a magnetic head support in a magnetic disk device. In the figure, 1 is an air bearing type magnetic head slider having a magnetic head, and 2 is a pivot I- The magnetic head 1 is bonded to the surface of the Girval plate 2 on the side where the pivot 1-3 is not provided. Further, the rear end side of the gimbal play 1-2 is attached to the spring brakes 1 to 4 through a coupling means such as spot welding, and in this attached state, the gimbal play 1
-2 pivot 3 is in contact with the inner peripheral surface of a dimple 5 provided on the spring plate 4, and the magnetic head slider 1 is pitched around the X-axis and Y-axis via the gimbal plate 2 using this pivot 3 as a fulcrum. and is supported so as to be able to perform rolling movements.
ばねプレート４は、空気ベアリング方式の磁気ヘッドス
ライダ１の空気ばねとの力のバランスを保つのに必要な
荷重を負荷するもので、その後端側をヘッドアーム（図
示せず）に取付けてなり、またピポット３に対する加圧
作用点となるピポット接触部位に上記したディンプル５
が形成されている。ディンプル５はピポット３の曲率半
径より大きな曲率半径を有し且つピポット３の突出高さ
を超えない深さを有するように形成され、ディンプル５
の内周面の頂部にピボツ１−３の曲面部を接触させてい
る。なお、ディンプル５はプレス加工によりばねプレー
ト４上に前もって形成したり、或いはピポット３を有す
るジンバルブレート２とはねプレート４を組立てた後に
ピポツ１−３とはねプレート４に適当な加圧力を与えて
形成するものである。The spring plate 4 loads the load necessary to maintain the force balance with the air spring of the air bearing type magnetic head slider 1, and is attached at its rear end to a head arm (not shown). In addition, the dimple 5 mentioned above is located at the pivot contact area which is the point of pressure application to the pivot 3.
is formed. The dimple 5 is formed to have a radius of curvature larger than the radius of curvature of the pivot 3 and a depth that does not exceed the protrusion height of the pivot 3.
The curved surface of the pivot 1-3 is brought into contact with the top of the inner peripheral surface of the pivot. The dimples 5 can be formed in advance on the spring plate 4 by press working, or after the gimbal plate 2 having the pivot 3 and the spring plate 4 are assembled, the dimples 5 can be formed by applying an appropriate pressure to the pivots 1-3 and the spring plate 4. It is formed by giving
次に本実施例の作用を説明する。Next, the operation of this embodiment will be explained.
本実施例は、磁気ディスクの回転時にディスク表面に形
態変化があると、磁気ヘッドスライド１がピポット３を
支点としてディンプル５の接触部位にてＸ軸、Ｙ軸周り
にピッチング或いはローリングを行って、磁気ヘッドの
姿勢が磁気ディスクの形態変化に追従するものである。In this embodiment, when there is a shape change on the disk surface during rotation of the magnetic disk, the magnetic head slide 1 pitches or rolls around the X-axis and Y-axis at the contact portion of the dimple 5 using the pivot 3 as a fulcrum. The attitude of the magnetic head follows the change in the shape of the magnetic disk.
そして、この追従運動時にピポット３に横すベリするよ
うな力が働くと、第２図に示すようにばねプレート４の
ディンプル５内周面の押圧力によって磁気ヘッドスライ
ダ１が磁気ディスク方向（矢印Ａ方向）に空気ベアリン
グ（図示せず）の空気ばねをわずかに押圧し、空気ばね
側においては、この力に抗する反力（矢印Ｂ方向）が増
大しこの反力によってピポット３が正常な位置に戻され
、横すべりが防止される。When a horizontal force is exerted on the pivot 3 during this follow-up motion, the magnetic head slider 1 is moved in the direction of the magnetic disk (arrow The air spring of the air bearing (not shown) is slightly pressed in the direction A), and the reaction force (in the direction of arrow B) that resists this force increases on the air spring side, and this reaction force causes the pivot 3 to return to its normal state. It is returned to its original position to prevent it from sliding sideways.
従って、本実施例によれば、ばわプレートの接触部位に
おけるピポット３の横すベリを確実に防止して、磁気ヘ
ッドの磁気ディスクの表面形態の変化に対する追従特性
を向上させることができる。Therefore, according to the present embodiment, it is possible to reliably prevent the pivot 3 from moving sideways at the contact portion of the baffle plate, and improve the ability of the magnetic head to follow changes in the surface form of the magnetic disk.
更に、ピポット３の横すベリを防止する結果、横すべり
によって生じるピポット３の摩耗ひいては経時的劣化を
防止することができる。また本例によれば、ばねプレー
ト４のピポット接触部位に形成した簡易な手段（ディン
プル５）を以ってピポット３の横すベリを防止するため
に、ばねプレート４の荷重条件を一定にしつつピポット
３とばねプレート４の間の抵抗を増大させることができ
るので、磁気ヘッド支持体の構造をＷｉ雑にすることな
く磁気ヘッドの追従特性を向上させることができる利点
を有する。Furthermore, as a result of preventing the pivot 3 from sliding sideways, it is possible to prevent wear of the pivot 3 caused by the sideways sliding, and furthermore, to prevent deterioration over time. Further, according to this example, in order to prevent the pivot 3 from being bent horizontally by using a simple means (dimple 5) formed at the pivot contact portion of the spring plate 4, the load condition of the spring plate 4 is kept constant. Since the resistance between the pivot 3 and the spring plate 4 can be increased, there is an advantage that the tracking characteristics of the magnetic head can be improved without making the structure of the magnetic head support body complicated.
以上のように本発明によれば、磁気ヘッドの運動特性を
損うことなく、ピポット部での横すベリを確実に防止し
、更にピポットの横すベリを防止する結果、磁気ヘッド
支持体の経時的劣化を防止することができるので、磁気
ディスク装置の精度及び信頼性を向上させることができ
る。As described above, according to the present invention, it is possible to reliably prevent the horizontal deflection of the pivot portion without impairing the motion characteristics of the magnetic head, and as a result of preventing the pivot from horizontal deflection, the magnetic head support is Since deterioration over time can be prevented, the accuracy and reliability of the magnetic disk device can be improved.
第１図は本発明の一実施例を示す一部消略分解斜視図、
第２図は上記実施例の磁気ヘッド支持体を構成するばね
プレートとジンバルプレートの組立状態を示す一部省略
縦断面図である。
１・・・磁気ヘッドスライダ、２・・・ジンバルプレー
ト、３・・ピポット、４・・・ばねプレート、５・・・
ディンプル。FIG. 1 is a partially cutaway exploded perspective view showing an embodiment of the present invention;
FIG. 2 is a partially omitted longitudinal cross-sectional view showing the assembled state of the spring plate and gimbal plate constituting the magnetic head support of the above embodiment. 1...Magnetic head slider, 2...Gimbal plate, 3...Pivot, 4...Spring plate, 5...
dimple.
Claims (1)
スライダと、前記磁気ヘッドを磁気ディスク面側に加圧
するばねプレートと、前記ばねプレートに接触するピポ
ットを支点として前記磁気ヘッドスライダをＸ軸、Ｙ軸
周りにピッチング、ローリング運動を行い得るように支
承するジンバル機構とを備えてなる磁気ヘッド支持体に
おいて、前記ばねプレートにおける前記ピポットの加圧
作用点となるピポット接触部位に、該ピポットの曲率半
径より大きな曲率半径を有し且つ該ピポットの突出高さ
を越えない深さを有するデインプルを形成してなること
を特徴とする磁気ディスク装置の磁気ヘッド支持体。1. An air-bearing magnetic head slider equipped with a magnetic head, a spring plate that presses the magnetic head toward the magnetic disk surface, and a pivot that contacts the spring plate to move the magnetic head slider along the X and Y axes. In a magnetic head support comprising a gimbal mechanism supporting the circumference so as to perform pitching and rolling motions, a radius of curvature of the pivot is applied to a pivot contact portion of the spring plate that is a pressure application point of the pivot. 1. A magnetic head support for a magnetic disk drive, comprising a dimple having a large radius of curvature and a depth not exceeding the protruding height of the pivot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20424585A JPS6265275A (en) | 1985-09-18 | 1985-09-18 | Supporting body for magnetic head of magnetic disc device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20424585A JPS6265275A (en) | 1985-09-18 | 1985-09-18 | Supporting body for magnetic head of magnetic disc device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6265275A true JPS6265275A (en) | 1987-03-24 |
Family
ID=16487255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20424585A Pending JPS6265275A (en) | 1985-09-18 | 1985-09-18 | Supporting body for magnetic head of magnetic disc device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6265275A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5079660A (en) * | 1988-07-05 | 1992-01-07 | Mitsubishi Denki Kabushiki Kaisha | Magnetic head suspension assembly for reducing vibration effects |
| US5339208A (en) * | 1990-10-05 | 1994-08-16 | Mitsubishi Denki Kabushiki Kaisha | Assembly for supporting a magnetic head to float relative to a magnetic disk |
| US5473488A (en) * | 1994-08-03 | 1995-12-05 | Hutchinson Technology Incorporated | Static attitude adjustment via a solidified drop for a magnetic head suspension |
| US5608590A (en) * | 1994-06-20 | 1997-03-04 | Hutchinson Technology Incorporated | Gimballing flexure with static compensation and load print intregal etched features |
| US5636089A (en) * | 1995-08-01 | 1997-06-03 | Hutchinson Technology Incorporated | Head suspension with spaced static attitude compensation protuberance and load dimple |
| US5652684A (en) * | 1994-02-01 | 1997-07-29 | Applied Magnetics Corporation | Magnetic head gimbal suspension with double dimple |
| US5661619A (en) * | 1993-12-10 | 1997-08-26 | Hutchinson Technology Incorporated | Gimballing flexure with static torque offset compensation feature |
| US5666241A (en) * | 1995-07-10 | 1997-09-09 | Magnecomp Corp. | Double dimple disk drive suspension |
| US5786961A (en) * | 1994-05-02 | 1998-07-28 | Hutchinson Technology Incorporated | Suspension assembly with ball for static attitude compensation and load point |
-
1985
- 1985-09-18 JP JP20424585A patent/JPS6265275A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5079660A (en) * | 1988-07-05 | 1992-01-07 | Mitsubishi Denki Kabushiki Kaisha | Magnetic head suspension assembly for reducing vibration effects |
| US5339208A (en) * | 1990-10-05 | 1994-08-16 | Mitsubishi Denki Kabushiki Kaisha | Assembly for supporting a magnetic head to float relative to a magnetic disk |
| US5661619A (en) * | 1993-12-10 | 1997-08-26 | Hutchinson Technology Incorporated | Gimballing flexure with static torque offset compensation feature |
| US5729889A (en) * | 1993-12-10 | 1998-03-24 | Hutchinson Technology Incorporated | Method of mounting a head slider to a head suspension with static offset compensation |
| US5652684A (en) * | 1994-02-01 | 1997-07-29 | Applied Magnetics Corporation | Magnetic head gimbal suspension with double dimple |
| US5786961A (en) * | 1994-05-02 | 1998-07-28 | Hutchinson Technology Incorporated | Suspension assembly with ball for static attitude compensation and load point |
| US5608590A (en) * | 1994-06-20 | 1997-03-04 | Hutchinson Technology Incorporated | Gimballing flexure with static compensation and load print intregal etched features |
| US5901430A (en) * | 1994-06-20 | 1999-05-11 | Hutchinson Technology Incorporated | Method of making integral static compensation features |
| US5473488A (en) * | 1994-08-03 | 1995-12-05 | Hutchinson Technology Incorporated | Static attitude adjustment via a solidified drop for a magnetic head suspension |
| US5666241A (en) * | 1995-07-10 | 1997-09-09 | Magnecomp Corp. | Double dimple disk drive suspension |
| US5852532A (en) * | 1995-07-10 | 1998-12-22 | Magnecomp Corp. | Double dimple disk drive suspension |
| US5636089A (en) * | 1995-08-01 | 1997-06-03 | Hutchinson Technology Incorporated | Head suspension with spaced static attitude compensation protuberance and load dimple |
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