JPH0468706B2 - - Google Patents
Info
- Publication number
- JPH0468706B2 JPH0468706B2 JP20933583A JP20933583A JPH0468706B2 JP H0468706 B2 JPH0468706 B2 JP H0468706B2 JP 20933583 A JP20933583 A JP 20933583A JP 20933583 A JP20933583 A JP 20933583A JP H0468706 B2 JPH0468706 B2 JP H0468706B2
- Authority
- JP
- Japan
- Prior art keywords
- slider
- magnetic
- head
- slide rail
- air
- 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.)
- Expired
Links
Classifications
-
- 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
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Description
【発明の詳細な説明】
(a) 発明の技術分野
本発明は磁気デイスク装置に用いられる磁気ヘ
ツドのスライダの改良に係り、特にYaw Angle
依存性が少なく、安定に浮上し得る磁気ヘツド用
スライダの構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION (a) Technical Field of the Invention The present invention relates to an improvement in a slider of a magnetic head used in a magnetic disk device, and particularly relates to an improvement in the slider of a magnetic head used in a magnetic disk device.
The present invention relates to a structure of a slider for a magnetic head that has little dependence and can fly stably.
(b) 技術の背景
磁気デイスク装置の揺動型磁気ヘツドは、一般
に第１図に示すように少なくとも２本のスライド
レール２を備えたヘツドスライダ１と、該ヘツド
スライダ１の一端に埋設された磁気記録・再生用
の磁気ヘツドコア３と、同スライダ１を支持する
ジンバルスプリング４及び図示しないジンバルア
ーム、サポートアーム等から構成されている。そ
してこのように構成されたヘツドスライダ１は、
回転する磁気デイスク媒体の半径方向に動作する
ことができ、しかも該磁気デイスク媒体の振れに
追従して姿勢を整え安定に浮上するようになつて
いる。更に詳細にには該ヘツドスライダ１は磁気
デイスク媒体の回転によつて生じる空気流がスラ
イドレール２のスライド面と磁気デイスク媒体面
との間に流れ込み、そのときの空気流の粘性によ
つて生じる１種の空気膜上に浮上することにな
る。(b) Background of the Technology Generally, as shown in FIG. 1, an oscillating magnetic head of a magnetic disk device includes a head slider 1 provided with at least two slide rails 2, and a head slider 1 embedded in one end of the head slider 1. It consists of a magnetic head core 3 for magnetic recording and reproduction, a gimbal spring 4 that supports the slider 1, a gimbal arm, a support arm, etc. (not shown). The head slider 1 configured in this way is
It can move in the radial direction of the rotating magnetic disk medium, and moreover, it follows the deflection of the magnetic disk medium to adjust its attitude and float stably. More specifically, in the head slider 1, an airflow generated by the rotation of the magnetic disk medium flows between the sliding surface of the slide rail 2 and the magnetic disk medium surface, and the head slider 1 is generated by the viscosity of the airflow at that time. It will float on a kind of air film.
(c) 従来技術と問題点
ところで、上記した従来の磁気ヘツド用スライ
ダ１の浮上状態時におけるスライドレール２のス
ライド面と磁気デイスク媒体面２４との間の空気
膜による圧力分布は、第２図に示すとおりであ
る。この圧力分布によつて明らかなように、ヘツ
ドスライダ１のスライドレール２における空気流
入側テーパ部２２で生じた圧力は、その後端部２
３まで持続され、全体的に略均一な圧力分布とな
つている。このため第３図に示すようにヘツドス
ライダ１は、空気流方向に対して５〜10゜程度の
Yaw Angle Ｑが生じた時、スライドレール２の
スライド面と磁気デイスク媒体面２４との間の空
気膜による圧力分布が大きく変化し、安定した浮
上状態を維持することが困難となり、ヘツドクラ
ツシユ等の障害の原因になつていた。(c) Prior Art and Problems By the way, the pressure distribution due to the air film between the sliding surface of the slide rail 2 and the magnetic disk medium surface 24 when the above-described conventional magnetic head slider 1 is in the floating state is shown in FIG. As shown below. As is clear from this pressure distribution, the pressure generated at the air inflow side taper section 22 of the slide rail 2 of the head slider 1 is
3, resulting in a substantially uniform pressure distribution throughout. For this reason, as shown in Fig. 3, the head slider 1 is placed at an angle of about 5 to 10 degrees with respect to the air flow direction.
When Yaw Angle Q occurs, the pressure distribution due to the air film between the sliding surface of the slide rail 2 and the magnetic disk medium surface 24 changes significantly, making it difficult to maintain a stable floating state and causing problems such as head crushing. It was becoming the cause of
(d) 発明の目的
本発明は上記従来の欠点に鑑み、ヘツドスライ
ダの少なくとも２本のスライドレールの形状を、
Yaw Angleによる空気圧力分布の変化が少なく
なるように改良し、耐振動特性を向上させると共
に、安定した浮上状態を維持することができる新
規な磁気ヘツド用スライダを提供することを目的
とするものである。(d) Purpose of the Invention In view of the above-mentioned drawbacks of the conventional art, the present invention improves the shape of at least two slide rails of the head slider.
The purpose of this invention is to provide a new slider for a magnetic head that is improved to reduce changes in air pressure distribution due to yaw angle, improve vibration resistance, and maintain a stable flying state. be.
(e) 発明の構成
そしてこの目的は本発明によれば、一端に磁気
記録・再生を行う電磁変換素子が付設され、かつ
磁気記録媒体と対向する面に、該磁気記録媒体の
回転によつて生じる空気流方向に沿つてスライド
面を有する少なくとも２本のスライドレールを備
え、上記空気流により浮上する磁気ヘツド用スラ
イダであつて、上記スライドレールの長手方向中
央部のレール幅を、該レールの両端幅よりも狭く
形成したことを特徴とする磁気ヘツド用スライダ
を提供することによつて達成される。(e) Structure of the Invention According to the present invention, an electromagnetic conversion element for performing magnetic recording and reproduction is attached to one end, and an electromagnetic conversion element that performs magnetic recording and reproduction is attached to the surface facing the magnetic recording medium. The slider for a magnetic head is provided with at least two slide rails having sliding surfaces along the direction of the generated air flow, and is floated by the air flow, wherein the rail width at the longitudinal center of the slide rail is This is achieved by providing a slider for a magnetic head, which is characterized in that the width is narrower than the width at both ends.
(f) 発明の実施例
以下図面を用いて本発明の実施例について詳細
に説明する。(f) Embodiments of the invention Examples of the invention will be described in detail below with reference to the drawings.
第４図は本発明に係る磁気ヘツド用スライダの
一実施例を示す斜視図である。図において４１は
２本のスライドレール４２を備えたヘツドスライ
ダであり、４３は該ヘツドスライダ４１の一端に
埋設されて成る磁気記録・再生用の磁気ヘツドコ
アである。 FIG. 4 is a perspective view showing an embodiment of a magnetic head slider according to the present invention. In the figure, 41 is a head slider provided with two slide rails 42, and 43 is a magnetic head core for magnetic recording/reproduction embedded in one end of the head slider 41.
しかして上記ヘツドスライダ４１の２本のスラ
イドレール４２は、その長手方向中央部のレール
幅が図示のように、該レール４２の空気流入端部
４２ａ及び空気流出端部４２ｂのレール幅よりも
狭く形成されている。従つて第５図に示すよう
に、かかるヘツドスライダ４１が磁気記録媒体５
１の回転によつて生じる空気流により浮上する際
は、該空気流が各スライドレール４２の長手方向
中央部において空気流と直交する方向へ逃げ易く
なるため、該各スライドレール４２のテーパ状空
気流入端部４２ａで生じた空気圧力は該レール４
２の中程で低下し、空気流出端部４２ｂで再び空
気圧力が増加するといつた空気圧力分布を形成す
る。即ちヘツドスライダ４１の浮上状態時の各ス
ライドレール４２におけるスライド面と、磁気デ
イスク媒体５１面との間の空気膜による圧力分布
は、高空気圧力部分が該各スライドレール４２の
テーパ状空気流入端部４２ａと空気流出端部４２
ｂに分割形成され、相互依存性が少なくなる。 As shown in the figure, the two slide rails 42 of the head slider 41 have a rail width narrower at the center in the longitudinal direction than at the air inflow end 42a and the air outflow end 42b of the rails 42. It is formed. Therefore, as shown in FIG. 5, the head slider 41 is connected to the magnetic recording medium 5.
When floating due to the airflow generated by the rotation of the slide rail 1, the airflow tends to escape in the direction perpendicular to the airflow at the longitudinal center of each slide rail 42, so that the tapered air of each slide rail 42 The air pressure generated at the inflow end 42a is applied to the rail 4.
An air pressure distribution is formed in which the air pressure decreases in the middle of 2 and increases again at the air outflow end 42b. That is, when the head slider 41 is in the floating state, the pressure distribution due to the air film between the slide surface of each slide rail 42 and the surface of the magnetic disk medium 51 is such that the high air pressure portion is located at the tapered air inflow end of each slide rail 42. part 42a and air outflow end 42
b, resulting in less interdependence.
従つて第６図に示すように、浮上時の空気流の
乱れや揺動形ポジシヨナによりヘツドスライダ４
１が空気流方向に対して５〜10゜程度のYaw
Angle Ｑを生じても、各スライドレール４２の
スライド面と磁気デイスク媒体面５１との間の空
気膜による圧力分布の変化は極めて少なくなり、
かつ復元力は大きくなることから耐振動特性が改
善され、ヘツドスライダ４１の浮上時のおける安
定性が向上する。 Therefore, as shown in FIG.
Yaw where 1 is about 5 to 10 degrees to the air flow direction
Even if Angle Q occurs, the change in pressure distribution due to the air film between the slide surface of each slide rail 42 and the magnetic disk medium surface 51 is extremely small.
In addition, since the restoring force is increased, the vibration resistance is improved, and the stability of the head slider 41 when it is floating is improved.
第７図の平面図及び第８図の断面図は、本発明
を、正圧力と負圧力とを併用した形式のヘツドス
ライダ７１に適用した実施例を示すもので、これ
ら両図により明らかなように、負圧壁７３を有す
る２本のスライドレール７２においてその長手方
向中央部のレール幅を空気流入端部７２ａ及び空
気流出端部７２ｂのレール幅よりも狭く形成して
いる。従つて本実施例の構造によつても前記第４
図による実施例と同様の効果が得られることは明
らかである。 The plan view of FIG. 7 and the cross-sectional view of FIG. 8 show an embodiment in which the present invention is applied to a head slider 71 of a type that uses both positive pressure and negative pressure. In addition, in the two slide rails 72 having the negative pressure wall 73, the rail width at the center in the longitudinal direction is narrower than the rail width at the air inflow end 72a and the air outflow end 72b. Therefore, with the structure of this embodiment, the fourth
It is clear that the same effects as the illustrated embodiment can be obtained.
尚、当該ヘツドスライダ７１においては、負圧
壁７３を有することから前期各スライドレール７
２の加工に多少の難しさは有るが、イオンエツチ
ング等の加工方法を採用することにより、加工コ
ストも変わることなく容易化され、コストパーフ
オマンスの良いヘツドスライダが得られる。 In addition, since the head slider 71 has a negative pressure wall 73, each of the slide rails 7 in the previous stage
Although there is some difficulty in processing No. 2, by employing a processing method such as ion etching, the processing cost can be simplified without changing, and a head slider with good cost performance can be obtained.
(g) 発明の効果
以上の説明から明らかなように、本発明に係る
磁気ヘツド用スライダの構造によれば、スライド
レールの長手方向中央部のレール幅を、該レール
の両端幅よりも狭く形成することにより、ヘツド
スライダの浮上状態時における各スライドレール
のスライド面と磁気デイスク媒体面との間の空気
膜による圧力分布が空気流のYaw Angleによつ
て変化することが小さくなり、ヘツドスライダの
浮上の乱れに対する復元力が大きくなることから
耐振動特性が改善され、浮上時における安定性が
大幅に向上する等、実用上優れた利点を有する。
従つてスライドレールを有する正圧型、又は負圧
型の磁気ヘツド用スライダに適用して極めて有利
である。(g) Effects of the Invention As is clear from the above explanation, according to the structure of the slider for a magnetic head according to the present invention, the rail width at the longitudinal center of the slide rail is formed narrower than the width at both ends of the rail. By doing so, the pressure distribution due to the air film between the slide surface of each slide rail and the magnetic disk medium surface when the head slider is in the floating state is less likely to change due to the Yaw Angle of the air flow, and the head slider is It has excellent practical advantages, such as improved vibration resistance due to increased restoring force against disturbances in levitation, and greatly improved stability during levitation.
Therefore, it is extremely advantageous to apply it to a slider for a positive pressure type or negative pressure type magnetic head having a slide rail.
第１図は従来の磁気ヘツド用スライダを説明す
るための要部斜視図、第２図及び第３図は従来の
磁気ヘツド用スライダの特性を説明するための説
明図、第４図は本発明に係る磁気ヘツド用スライ
ダの一実施例を示す要部斜視図、第５図及び第６
図は第４図に示す本発明に係る磁気ヘツド用スラ
イダの特性を説明するための説明図、第７図は本
発明に係る磁気ヘツド用スライダの他の実施例を
示す概略平面図、第８図は第７図の磁気ヘツド用
スライダの断面図である。
図面において、４１，７１はヘツドスライダ、
４２，７２はスライドレール、４２ａ，７２ａは
空気流入端部、４２ｂ，７２ｂは空気流出端部、
４３は磁気ヘツドコア、５１は磁気記録媒体、Ｑ
はYaw Angleを示す。
FIG. 1 is a perspective view of essential parts for explaining a conventional slider for a magnetic head, FIGS. 2 and 3 are explanatory diagrams for explaining the characteristics of a conventional slider for a magnetic head, and FIG. 4 is an inventive slider for a magnetic head. FIGS. 5 and 6 are perspective views of essential parts showing an embodiment of the magnetic head slider according to the invention.
The figures are an explanatory diagram for explaining the characteristics of the slider for a magnetic head according to the present invention shown in FIG. 4, FIG. 7 is a schematic plan view showing another embodiment of the slider for a magnetic head according to the present invention, and FIG. This figure is a sectional view of the magnetic head slider of FIG. 7. In the drawing, 41 and 71 are head sliders,
42, 72 are slide rails, 42a, 72a are air inflow ends, 42b, 72b are air outflow ends,
43 is a magnetic head core, 51 is a magnetic recording medium, Q
indicates Yaw Angle.
Claims (1)
付設され、かつ磁気記録媒体と対向する面に、該
磁気記録媒体の回転によつて生じる空気流方向に
沿つてスライド面を有する少なくとも２本のスラ
イドレールを備え、上記空気流により浮上する磁
気ヘツド用スライダであつて、上記スライドレー
ルの長手方向中央部のレール幅を、該レールの両
端幅よりも狭く形成したことを特徴とする磁気ヘ
ツド用スライダ。1. At least two wires each having an electromagnetic transducer element for magnetic recording/reproduction at one end and having a sliding surface on the surface facing the magnetic recording medium along the direction of air flow generated by the rotation of the magnetic recording medium. A slider for a magnetic head comprising a slide rail and floating by the airflow, characterized in that the rail width at the longitudinal center of the slide rail is narrower than the width at both ends of the rail. Slider.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20933583A JPS60101781A (en) | 1983-11-07 | 1983-11-07 | Slider for magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20933583A JPS60101781A (en) | 1983-11-07 | 1983-11-07 | Slider for magnetic head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60101781A JPS60101781A (en) | 1985-06-05 |
| JPH0468706B2 true JPH0468706B2 (en) | 1992-11-04 |
Family
ID=16571241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20933583A Granted JPS60101781A (en) | 1983-11-07 | 1983-11-07 | Slider for magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60101781A (en) |
Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4700248A (en) * | 1986-03-17 | 1987-10-13 | Polaroid Corporation | Magnetic head assembly with angled slots |
| US4734803A (en) * | 1986-03-20 | 1988-03-29 | International Business Machines | Magnetic head air bearing slider |
| JPH02246067A (en) * | 1989-03-20 | 1990-10-01 | Fujitsu Ltd | Slider for magnetic disk device |
| US5251083A (en) * | 1989-05-29 | 1993-10-05 | Hitachi, Ltd. | Flying head slider and method of producing the same |
| JP2765952B2 (en) * | 1989-05-29 | 1998-06-18 | 株式会社日立製作所 | Floating head slider |
| US5274518A (en) * | 1990-05-25 | 1993-12-28 | Seagate Technology, Inc. | Negative pressure air bearing slider having converging isolation channels |
| US5062017A (en) * | 1990-05-25 | 1991-10-29 | Seagate Technology, Inc. | Hour-glass disk head slider |
| US5196973A (en) * | 1990-05-25 | 1993-03-23 | Seagate Technology, Inc. | Negative pressure air bearing slider having isolation channels which terminate prior to trailing edge |
| US5343343A (en) * | 1990-05-25 | 1994-08-30 | Seagate Technology, Inc. | Air bearing slider with relieved rail ends |
| US5128822A (en) * | 1990-05-25 | 1992-07-07 | Seagate Technology, Inc. | Configuration for negative pressure air bearing sliders |
| US5218494A (en) * | 1990-05-25 | 1993-06-08 | Seagate Technology, Inc. | Negative pressure air bearing slider having isolation channels with edge step |
| JPH04228157A (en) * | 1990-07-13 | 1992-08-18 | Fujitsu Ltd | Magnetic head slider |
| JPH06203515A (en) * | 1992-11-30 | 1994-07-22 | Read Rite Corp | Magnetic-head slider |
| US5404256A (en) * | 1992-12-07 | 1995-04-04 | White; James W. | Transverse and negative pressure contour gas bearing slider |
| US5726831A (en) * | 1992-12-07 | 1998-03-10 | White; James W. | Methods for operating a gas bearing slider |
| JPH07161162A (en) * | 1993-12-07 | 1995-06-23 | Fujitsu Ltd | Magnetic head slider |
| KR950020658A (en) * | 1993-12-07 | 1995-07-24 | 새끼자와 다다시 | Magnetic disk device |
| JP3139595B2 (en) * | 1994-04-15 | 2001-03-05 | ティーディーケイ株式会社 | Magnetic head, magnetic recording / reproducing device, and magnetic head manufacturing method |
| JP2934153B2 (en) * | 1994-08-05 | 1999-08-16 | ティーディーケイ株式会社 | Photoresist film forming method |
| US5550692A (en) * | 1994-09-29 | 1996-08-27 | Seagate Technology, Inc. | Proximity recording air bearing slider design with waist offset |
| JP3240039B2 (en) * | 1995-10-24 | 2001-12-17 | ティーディーケイ株式会社 | Magnetic head, magnetic recording / reproducing device, and magnetic head manufacturing method |
| US5774304A (en) * | 1996-01-16 | 1998-06-30 | Seagate Technology, Inc. | Disc head slider having center rail with asymmetric edge steps |
| JP2001508579A (en) * | 1997-01-15 | 2001-06-26 | シーゲイト テクノロジー エルエルシー | Slider with side rail ending with trailing edge cut |
| JP3237751B2 (en) * | 1997-04-11 | 2001-12-10 | ティーディーケイ株式会社 | Magnetic head |
| US5986850A (en) * | 1997-06-16 | 1999-11-16 | Seagate Technology, Inc. | Positive pressure optical slider having wide center rail |
| WO1999005679A1 (en) | 1997-07-23 | 1999-02-04 | Seagate Technology, Inc. | Positive pressure optical slider having trailing end side pads |
| US6344948B1 (en) | 1999-09-23 | 2002-02-05 | Seagate Technology Llc | Padded disc head slider having shallow load point for reduced tipping |
-
1983
- 1983-11-07 JP JP20933583A patent/JPS60101781A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60101781A (en) | 1985-06-05 |
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