JPS6390086A - Magnetic head slider - Google Patents
Magnetic head sliderInfo
- Publication number
- JPS6390086A JPS6390086A JP23459686A JP23459686A JPS6390086A JP S6390086 A JPS6390086 A JP S6390086A JP 23459686 A JP23459686 A JP 23459686A JP 23459686 A JP23459686 A JP 23459686A JP S6390086 A JPS6390086 A JP S6390086A
- Authority
- JP
- Japan
- Prior art keywords
- slider
- gravity
- center
- specific gravity
- supporting member
- 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
- 230000005484 gravity Effects 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000005452 bending Methods 0.000 claims abstract description 6
- 238000007667 floating Methods 0.000 claims abstract description 6
- 239000011195 cermet Substances 0.000 abstract description 3
- 230000001133 acceleration Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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】
〔産業上の利用分野〕
本発明は磁気ディスク装置の浮動形磁気へラドスライダ
に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a floating magnetic rad slider for a magnetic disk device.
磁気へラドスライダは、得たい情報に高速でアクセスす
るため、磁気ディスク上を半径方向に高速で移動する必
要がある。従ってスライダには支持部材から大きな半径
方向加速度が加わる。この時第２図の如く、スライダ５
の支持部材４からの力の作用点８と、スライダの重心点
９とのずれが大きいと、アクセスする途中でスライダ５
が傾き、極端な場合はスライダ５の片側のレールがディ
スク１１に接触してしまう。これを防ぐために従来は第
３図のようなカウンターマス１−２を設けたり、スライ
ダ質量を軽くしたり、浮」二面で発生するエアベアリン
グの剛性を上げることなどの対策を行なっていた。しか
しアクセス速度を向−１ニさせるために半径方向の移動
加速度を大きくする傾向にある。またスライダの浮上址
は記録密度向上のために小さく設定する傾向にあるため
、上記のような力の作用点と重心位置のずれをさらに小
さくして、スライダの傾きを小さくする必要がある。〔
発明が解決しようとする問題点〕
従来技術のうち、カウンターマスを大きくすると、スラ
イダが装置内の空気流による力を受けやすくなり、別の
種類の浮」二量変動を生じやすくなる欠点がある。また
スライダを小型軽量化することは、スライダが薄くなる
ことによる浮上面の平坦性確保の困難化などの加工上の
欠点や、軽量で耐摩耗性も良い材料の選定が困難である
などの欠点がある。さらにエアベアリングの高剛性化は
、万一スライダとディスクが接触した時のダメージが大
きくなるという欠点がある。In order to access the desired information at high speed, the magnetic radial slider must move at high speed in the radial direction on the magnetic disk. Therefore, a large radial acceleration is applied to the slider from the support member. At this time, as shown in Figure 2, slider 5
If there is a large deviation between the point of application of force 8 from the support member 4 and the center of gravity 9 of the slider, the slider 5 may
is tilted, and in extreme cases, the rail on one side of the slider 5 will come into contact with the disk 11. In order to prevent this, conventional measures have been taken such as providing a counter mass 1-2 as shown in Fig. 3, reducing the mass of the slider, and increasing the rigidity of the air bearing that occurs on the floating surface. However, there is a tendency to increase the movement acceleration in the radial direction in order to increase the access speed. Furthermore, since the flying area of the slider tends to be set small in order to improve the recording density, it is necessary to further reduce the deviation between the point of application of the force and the center of gravity position to reduce the inclination of the slider. [
[Problems to be Solved by the Invention] Among the conventional techniques, there is a drawback that when the counter mass is increased, the slider becomes more susceptible to the force of the air flow within the device, making it more likely to cause another type of float volume fluctuation. . In addition, making the slider smaller and lighter has disadvantages in processing, such as the difficulty of ensuring flatness of the flying surface due to the thinner slider, and difficulty in selecting materials that are lightweight and have good wear resistance. There is. Furthermore, increasing the rigidity of air bearings has the disadvantage that damage will be greater if the slider and disk should come into contact.
本発明の目的は、スライダの小型化、耐摩耗性を確保し
つつ、スライダの重心位置を適正に設定できる手段を提
供することにある。An object of the present invention is to provide a means for appropriately setting the position of the center of gravity of a slider while ensuring downsizing and wear resistance of the slider.
上記目的は、スライダの支持部材側を比重が重く曲げ剛
性の大きい材質で形成し、スライダの浮上面側を比重が
軽く耐摩耗性の良い材質で形成することにより達成され
る。The above object is achieved by forming the support member side of the slider from a material with a heavy specific gravity and high bending rigidity, and by forming the air bearing surface side of the slider from a material with a low specific gravity and good wear resistance.
支持部材側の、比重が大きく曲げ剛性の大きい部分は、
加工後のスライダのそりを防ぎ浮上面の平坦性を確保す
るとともに、アクセス時の加速度によってスライダの浮
上面部分に生ずる慣性力による回転モーメントを打ち消
す働きをもつ。浮上面側の、比重が小さく耐摩耗性が良
い部分は、アクセス時の加速度によって生ずる慣性力が
小さく回転モーメントを小さくし、ディスクとの摩擦摩
耗特性を良好に保つ働きをもつ。The part on the supporting member side that has a high specific gravity and high bending rigidity is
It prevents the slider from warping after processing and ensures the flatness of the air bearing surface, and also has the function of canceling out the rotational moment due to the inertial force generated on the air bearing surface of the slider due to acceleration during access. The part on the air bearing surface side that has a low specific gravity and good wear resistance has a small inertia force generated by acceleration during access, which reduces the rotational moment and maintains good friction and wear characteristics with the disk.
以下、本発明の一実施例を第１図により説明する。スラ
イダの浮上面側１はアルミナチタンカーバイド１（比重
４．３、曲げ強さ５０００ ｋｇ／ ｃＪ）からなり、
支持部材側２はサーメット（比重７．７゜曲げ強さ１９
０００ｋｇ／ｄ）からなり、この２つがガラス３で溶着
しである。この組合せによれば従来とまったく同型状の
まま、力の作用点をスライダ重心に±０．０３ｎｗｎ以
内に合わせることができた。An embodiment of the present invention will be described below with reference to FIG. The air bearing surface side 1 of the slider is made of alumina titanium carbide 1 (specific gravity 4.3, bending strength 5000 kg/cJ),
Support member side 2 is made of cermet (specific gravity 7.7° bending strength 19
000 kg/d), and these two are welded together with glass 3. With this combination, it was possible to align the point of force application with the slider center of gravity within ±0.03 nwn while maintaining the same shape as the conventional one.
また従来より２０％薄いスライダ形状とし、同様な組合
せで作製したところ、浮上面の平坦性は従来と同程度に
良いものとなった。Furthermore, when the slider shape was made 20% thinner than the conventional one and the same combination was manufactured, the flatness of the air bearing surface was as good as that of the conventional one.
本発明によれば、スライダの小型化、耐摩耗性浮上面の
平担性を確保しつつ、スライダの重心位置を、支持部材
からの力の作用点に一致させることができるので、アク
セス時の浮上量変動を小さくでき、装置の信頼性を向上
させる効果がある。According to the present invention, the center of gravity of the slider can be aligned with the point of application of force from the support member while ensuring the downsizing of the slider and the flatness of the wear-resistant air bearing surface. This has the effect of reducing flying height fluctuations and improving the reliability of the device.
第１図は本発明の一実施例のスライダ部の側断面および
横断面図、第２図は力の作用点とスライダ重心がずれて
いることにより生ずるスライダの傾きを表わす模式図、
第３図は従来の対策法の１つであるカウンターマスを有
するスライダの断面図である。
ｌ・・・アルミナチタンカーバイト、２・・・サーメッ
ト、３・・・ガラス、４・・・支持部材、５・・・スラ
イダ、７・・・アクセス方向加速度、８・・・支持部材
からの力の作用点、９・・・スライダ重心、１０・・・
回転モーメント、第３０FIG. 1 is a side cross-sectional view and a transverse cross-sectional view of a slider portion according to an embodiment of the present invention, and FIG. 2 is a schematic diagram showing the inclination of the slider caused by a deviation between the point of application of force and the center of gravity of the slider.
FIG. 3 is a sectional view of a slider having a counter mass, which is one of the conventional countermeasures. l... Alumina titanium carbide, 2... Cermet, 3... Glass, 4... Support member, 5... Slider, 7... Acceleration in access direction, 8... Acceleration from support member Point of application of force, 9...Slider center of gravity, 10...
Rotating moment, 30th
Claims (1)
部材からなる磁気ディスク装置において、スライダの支
持部材側を比重が大きく曲げ剛性の大きい材質で形成し
、スライダの浮上面側を比重が小さく耐摩耗性の良い材
質で形成することにより支持部材からの力の作用点とス
ライダの重心を近接または一致させたことを特徴とする
磁気ヘッドスライダ。1. In a magnetic disk device consisting of a magnetic head floating above a magnetic recording medium and its support member, the support member side of the slider is made of a material with a high specific gravity and high bending rigidity, and the air bearing surface side of the slider is made of a material with a low specific gravity. A magnetic head slider characterized in that the point of application of force from a support member and the center of gravity of the slider are made to be close to or coincide with each other by being made of a material with good wear resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23459686A JPS6390086A (en) | 1986-10-03 | 1986-10-03 | Magnetic head slider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23459686A JPS6390086A (en) | 1986-10-03 | 1986-10-03 | Magnetic head slider |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6390086A true JPS6390086A (en) | 1988-04-20 |
Family
ID=16973509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23459686A Pending JPS6390086A (en) | 1986-10-03 | 1986-10-03 | Magnetic head slider |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6390086A (en) |
-
1986
- 1986-10-03 JP JP23459686A patent/JPS6390086A/en active Pending
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