JPS63113989A - Floating head slider - Google Patents

Floating head slider

Info

Publication number
JPS63113989A
JPS63113989A JP25857586A JP25857586A JPS63113989A JP S63113989 A JPS63113989 A JP S63113989A JP 25857586 A JP25857586 A JP 25857586A JP 25857586 A JP25857586 A JP 25857586A JP S63113989 A JPS63113989 A JP S63113989A
Authority
JP
Japan
Prior art keywords
floating
circumferential side
head slider
floating head
outer circumferential
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
Application number
JP25857586A
Other languages
Japanese (ja)
Inventor
Toshiro Kita
北 寿郎
Toshibumi Okubo
俊文 大久保
Yasuhiro Koshimoto
越本 泰弘
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP25857586A priority Critical patent/JPS63113989A/en
Publication of JPS63113989A publication Critical patent/JPS63113989A/en
Pending legal-status Critical Current

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  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)

Abstract

PURPOSE:To stabilize the floating posture of a slider by forming a notch part different at the outer circumferential side and at the inner circumferential side on the floating surface of a floating head slider, and generating the approximately floating force between both. CONSTITUTION:When a taper part 6 formed at a floating surface 4 is the part formed on a floating surface 4a at the inner circumferential side to disk media and the part formed on a floating surface 4b at the outer circumferential side, the length of a taper part 6b formed at the outer circumferential side is set longer. The difference in the length between the inner circumferential side of such a taper part 6 and the outer circumferential side corresponds to the difference in the floating force to occur at floating surfaces 4a and 4b with the inner circumferential side and the outer circumferential side to disk media, and the length comes to the one to be able to cancel the difference in these floating forces. Consequently, thus, by changing the length of the taper part 6 of the floating surface 4 at the inner circumferential side and the outer circumferential side, a floating head slider 2 can be floated in the stable condition to the disk media.

Description

【発明の詳細な説明】 〈産業上の利用分野〉 本発明は、浮動を安定させた磁気ディスク装置用の浮動
ヘッドスライダに関する。
DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a floating head slider for a magnetic disk device with stable floating.

〈従来の技術〉 第11図及び第12図に従来の磁気ディスク装置におけ
る浮動ヘッドスライダ30を示す。この浮動ヘッドスラ
イダ30は、磁気ディスク装置内において高速で回転し
ているディスク媒体に非接触で対向し情報の記録再生を
行なわせるためのもので、左右に浮上面32を有する双
胴型となっており、その前方にはテーパ部34が形成し
である。又第13図には上記テーパ部の箇所がステップ
部36となっている浮動ヘッドスライダ38を示す。
<Prior Art> FIGS. 11 and 12 show a floating head slider 30 in a conventional magnetic disk device. This floating head slider 30 is for recording and reproducing information by facing a disk medium rotating at high speed in a magnetic disk device without contacting it, and is a twin-body type having air bearing surfaces 32 on the left and right sides. A tapered portion 34 is formed in front of it. Further, FIG. 13 shows a floating head slider 38 in which the taper portion is a step portion 36.

〈発明が解決しようとする問題点〉 ところがこのような浮動ヘッドスライダ30等は、第1
4図に示すように浮上面32をディスク媒体40の円周
方向に沿わせて配置することから左右の浮上面32にお
けるディスク媒体40に対する走行速度が異なゆ、ディ
スク媒体40の内周側に位置する浮上面32の浮上刃と
外周側に位置する浮上面32の浮上刃とで差が生じ、浮
動ヘッドスライダ30の浮上姿勢が不安定となる。図中
42はディスク媒体40の回転中心である。このことは
ディスク媒体40が大径の場合にはその径に比べ浮上面
32間の間隔が小さいため浮上刃のアンバランスはさほ
ど問題とならないが、ディスク媒体40の径が小さくな
るほど外周側の浮上面32におけろ速度と内周側の浮上
面32の速度との速度差が相対的に大きくなり、浮動ヘ
ッドスライダ30の浮上安定性を悪化させるという問題
があった。
<Problems to be solved by the invention> However, such a floating head slider 30 etc.
As shown in FIG. 4, since the air bearing surface 32 is arranged along the circumferential direction of the disk medium 40, the running speed of the left and right air bearing surfaces 32 relative to the disk medium 40 is different, and therefore the air bearing surface 32 is located on the inner circumferential side of the disk medium 40. A difference occurs between the floating blades of the floating surface 32 located on the outer peripheral side and the floating blades of the floating surface 32 located on the outer circumferential side, and the flying posture of the floating head slider 30 becomes unstable. In the figure, 42 is the center of rotation of the disk medium 40. This means that when the disk medium 40 has a large diameter, the gap between the floating surfaces 32 is small compared to the diameter, so the unbalance of the floating blades is not so much of a problem. There is a problem in that the speed difference between the speed at the surface 32 and the speed at the air bearing surface 32 on the inner peripheral side becomes relatively large, which deteriorates the flying stability of the floating head slider 30.

一方このような問題点を解決する手段としては従来より
外周側の浮上面32の幅を内周側の浮上面320幅より
小さくして浮上刃のアンバランスを解消するようにした
浮動ヘッドスライダも考案されているが、浮上面32の
幅を変化させろと浮上刃は、概ねその変化分の3乗の割
合で変化するため、これにより所望の浮上刃を得るため
には浮上面の幅出し加工に高精度のものが要求されると
いう問題があった。
On the other hand, as a means to solve this problem, there is a conventional floating head slider in which the width of the floating surface 32 on the outer circumferential side is made smaller than the width of the floating surface 320 on the inner circumferential side to eliminate the unbalance of the floating blade. However, if the width of the floating surface 32 is changed, the floating blade will change at a rate approximately equal to the cube of the change, so in order to obtain the desired floating blade, the width of the floating surface must be widened. The problem was that high accuracy was required.

く問題点を解決するための手段〉 そこで本発明では、浮動ヘッドスライダの浮動面に外周
側と内周側とで異なる切欠部を形成して両者間にほぼ同
一の浮上刃が生ずるようにすることにより浮動ヘッドス
ライダの浮上姿勢を安定させるようにしたのである。
Means for Solving the Problems> Therefore, in the present invention, different notches are formed on the outer circumferential side and the inner circumferential side on the floating surface of the floating head slider so that almost the same floating blade is created between the two. This stabilizes the flying attitude of the floating head slider.

く実 施 例〉 第1図は本発明にかかる浮動ヘッドスライダ2の一実施
例を示すもので、浮動面4を左右に有する概ね双胴型と
なっており、従来例において述べたようにg1気ディス
ク装置にこの浮動面4が、当該g1気ディスク装置にお
けるディスク媒体(いずれも図示せず。)の円周方向に
沿うようにして配置される。そして前記ディスク媒体に
接触することなく対向して設けられ磁気的な記録再生を
このディスク媒体との間で行なわせるようになっている
Embodiment> FIG. 1 shows an embodiment of the floating head slider 2 according to the present invention, which is generally of a double body type with floating surfaces 4 on the left and right sides, and as described in the conventional example, This floating surface 4 is arranged in the G1 disk device along the circumferential direction of a disk medium (none of which is shown) in the G1 disk device. It is provided facing the disk medium without contacting it, so that magnetic recording and reproduction can be performed between the disk medium and the disk medium.

そしてこの浮動ヘッドスライダ2の特徴的なところは、
第2図に示すように上記浮動面4に形成されたテーパ部
6がディスク媒体に対する内周側の浮動面4aのものと
、外周側の浮動面4bに形成したものとではその長さが
外周側に形成したテーパ部6bの方が長く設定しである
。かかるテーパ部6の内周側と外周側との長さの差は、
ディスク媒体に対しての内周側と外周側の浮動面4a及
び4bに生ずる浮上刃の差に対応しこれらの浮上刃の差
を解消し得るような長さとなっている。従って、このよ
うに浮動面4のテーパ部6の長さを内周側と外周側とで
変化させることによりディスク媒体に対して浮動ヘッド
スライダ2を安定した状態で浮上させろことができる。
The unique features of this floating head slider 2 are:
As shown in FIG. 2, the length of the tapered portion 6 formed on the floating surface 4 is the same as that of the floating surface 4a on the inner peripheral side with respect to the disk medium, and that on the floating surface 4b on the outer peripheral side with respect to the disk medium. The tapered portion 6b formed on the side is set longer. The difference in length between the inner circumferential side and the outer circumferential side of the tapered portion 6 is
The length is such that it corresponds to the difference in floating blades that occurs between the inner and outer floating surfaces 4a and 4b with respect to the disk medium and can eliminate the difference in these floating blades. Therefore, by changing the length of the tapered portion 6 of the floating surface 4 between the inner circumferential side and the outer circumferential side in this way, the floating head slider 2 can be stably floated relative to the disk medium.

第3図はかかる浮動ヘッドスライダ2を側面より示した
ものである。
FIG. 3 shows such a floating head slider 2 from the side.

第4図は上記テーパ部6をステップ部8として形成し、
そのステップ部8の内周側と外周側との長さを各々浮上
刃に見合うよう変更したものである。
In FIG. 4, the tapered portion 6 is formed as a step portion 8,
The lengths of the inner circumferential side and the outer circumferential side of the step portion 8 are changed to match the respective floating blades.

第5図は、テーパ部10を浮動面4に対し傾斜させたも
ので、その長さは上記例と同様内周側と外周側とで浮上
刃が等しくなるようになっている。第6図はその正面図
である。
In FIG. 5, the tapered portion 10 is inclined with respect to the floating surface 4, and its length is such that the floating blades are equal on the inner circumferential side and the outer circumferential side, as in the above example. FIG. 6 is a front view thereof.

第7図は、ステップ部12のその浮動面4との境界14
を傾斜させである。又第8図に示すようにステップ状あ
るいはテーパ状とを問わず外周側と内周側の境界14を
一直線状に形成してもよい。
FIG. 7 shows the boundary 14 between the step portion 12 and the floating surface 4.
It is tilted. Further, as shown in FIG. 8, the boundary 14 between the outer circumferential side and the inner circumferential side may be formed in a straight line, regardless of whether it is stepped or tapered.

第9図及び第10図は負圧発生部16を有する浮動ヘッ
ドスライダ18におけろステップ部20を外周側ほど長
くするようにしたものである。
9 and 10 show a floating head slider 18 having a negative pressure generating section 16 in which the step section 20 is made longer toward the outer circumference.

以上述べたような浮動ヘッドスライダ2等によれば内周
側と外周側における浮上刃を均等にさせることができ、
安定した状態での浮動を実現させることができる。しか
も上記各種切欠き部の形成は、例又は第1図等に述べた
テーパ部6では浮動面4を平坦研摩したのち、それぞれ
の浮動面4a、4bに各々平行段差研摩を追加すること
により得られ、又第4図等に述べたステップ部8では、
平坦研摩した浮動面4に、所望の形状のマスクを配しエ
ツチング加工を施せば容易に得ることができろ。
According to the floating head slider 2 and the like described above, the floating blades on the inner circumferential side and the outer circumferential side can be made equal,
Floating in a stable state can be achieved. Moreover, the formation of the various notches described above can be achieved by flatly polishing the floating surface 4 in the tapered portion 6 described in the example or FIG. 1, and then adding parallel step polishing to each floating surface 4a and 4b. In addition, in the step part 8 described in FIG. 4 etc.,
It can be easily obtained by placing a mask of a desired shape on the flat and polished floating surface 4 and etching it.

〈発明の効果〉 す上述べたように、本発明は浮動面のステップ部あるい
はテーパ部の長さを異なるものとすることにより内周側
と外周側との浮上刃を均等とすることとしたので、浮動
ヘッドスライダを安定した状態で浮動させることができ
、しかも浮動面に形成するステップ部あるいはテーパ部
は浮動面の幅方向変化に比較して浮上刃に与える影響が
格段に小さいことから加工公差を浮動面の幅加工に比べ
て大幅に緩めることができ、そのため容易に所望の浮上
刃を得るための加工を行なうことができる。
<Effects of the Invention> As mentioned above, the present invention makes the floating blades on the inner and outer circumferential sides equal by making the lengths of the step portion or the tapered portion of the floating surface different. Therefore, the floating head slider can be floated in a stable state, and the step or taper part formed on the floating surface has a much smaller effect on the floating blade than changes in the width direction of the floating surface. The tolerance can be made much looser than when machining the width of the floating surface, so machining to obtain a desired floating edge can be easily performed.

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

第1図〜第10図は本発明にかかるもので、第1図は浮
動ヘッドスライダの一実施例を示す斜視図、第2図は第
1図の底面図、第3図、第4図は他の実施例にかかる側
面図、第5図は他の実施例にかかる底面図、第6図は他
の実施例にかかる正面図、第7図、第8図、第9図は他
の実施例にかかる底面図、第10図は第9図の側面図、
第11図〜第13図は浮動ヘッドスライダの従来例にか
かるもので、第11図は底面図、第12図は第11図の
側面図、第13図は他の例の側面図、第14図は浮動ヘ
ッドスライダとディスク媒体とを示す説明図である。 図  面  中、 2.18,30,38は浮動ヘッドスライダ、4.32
は浮動面、 6.10,34はテーパ部、 8.12,20,36はステップ部、 14は境界、 16は負圧発生部である。 特  許  出  願  人 日本電信電話株式会社 代    理    人
1 to 10 are related to the present invention; FIG. 1 is a perspective view showing one embodiment of a floating head slider, FIG. 2 is a bottom view of FIG. 1, and FIGS. 3 and 4 are 5 is a bottom view of another embodiment, FIG. 6 is a front view of another embodiment, and FIGS. 7, 8, and 9 are other embodiments. A bottom view of the example, FIG. 10 is a side view of FIG. 9,
11 to 13 show a conventional example of a floating head slider. FIG. 11 is a bottom view, FIG. 12 is a side view of FIG. 11, FIG. 13 is a side view of another example, and FIG. The figure is an explanatory diagram showing a floating head slider and a disk medium. In the drawing, 2.18, 30, 38 are floating head sliders, 4.32
6.10, 34 are tapered parts; 8.12, 20, 36 are step parts; 14 is a boundary; 16 is a negative pressure generating part. Patent applicant: Agent of Nippon Telegraph and Telephone Corporation

Claims (3)

【特許請求の範囲】[Claims] (1)磁気ディスク装置に用いるテーパあるいはステッ
プを有する二つの浮上面を持つ双胴形の浮動ヘッドスラ
イダにおいて、前記浮動ヘッドスライダのディスクの外
周側の浮上面のテーパ部あるいはステップ部がディスク
内周側の浮上面のテーパ部あるいはステップ部よりも長
いことを特徴とする浮動ヘッドスライダ。
(1) In a twin-hulled floating head slider having two air bearing surfaces with a taper or step for use in a magnetic disk device, the tapered portion or step portion of the air bearing surface on the outer peripheral side of the disk of the floating head slider is located at the inner periphery of the disk. A floating head slider characterized in that the side air bearing surface is longer than a tapered part or a step part.
(2)前記浮動ヘッドスライダの一方または両方の浮上
面のテーパ部あるいはステップ部がディスクの外周側に
なるほど長くしたことを特徴とする特許請求の範囲第1
項記載の浮動ヘッドスライダ。
(2) The tapered portion or step portion of the air bearing surface of one or both of the floating head sliders is made longer toward the outer periphery of the disk.
Floating head slider as described in section.
(3)負圧発生部を有する浮動ヘッドスライダにおいて
テーパ部あるいはステップ部の長さが外周側ほど長くし
たことを特徴とする浮動ヘッドスライダ。
(3) A floating head slider having a negative pressure generating section, characterized in that the length of the tapered section or step section is increased toward the outer circumference.
JP25857586A 1986-10-31 1986-10-31 Floating head slider Pending JPS63113989A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25857586A JPS63113989A (en) 1986-10-31 1986-10-31 Floating head slider

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25857586A JPS63113989A (en) 1986-10-31 1986-10-31 Floating head slider

Publications (1)

Publication Number Publication Date
JPS63113989A true JPS63113989A (en) 1988-05-18

Family

ID=17322153

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25857586A Pending JPS63113989A (en) 1986-10-31 1986-10-31 Floating head slider

Country Status (1)

Country Link
JP (1) JPS63113989A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4996614A (en) * 1988-12-08 1991-02-26 Mitsubishi Denki Kabushiki Kaisha Magnetic recording apparatus having dust removing surface feature
US5761004A (en) * 1996-12-02 1998-06-02 International Business Machines Corporation Air bearing slider with offset crossbars to reduce roll
US6301079B1 (en) 1998-02-23 2001-10-09 Fujitsu Limited Flying head slider having a splay formed on a flying surface enabling a lower flying height while avoiding collision with a surface of a recording disk

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4996614A (en) * 1988-12-08 1991-02-26 Mitsubishi Denki Kabushiki Kaisha Magnetic recording apparatus having dust removing surface feature
US5761004A (en) * 1996-12-02 1998-06-02 International Business Machines Corporation Air bearing slider with offset crossbars to reduce roll
US6301079B1 (en) 1998-02-23 2001-10-09 Fujitsu Limited Flying head slider having a splay formed on a flying surface enabling a lower flying height while avoiding collision with a surface of a recording disk

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