JPS6321272B2 - - Google Patents
Info
- Publication number
- JPS6321272B2 JPS6321272B2 JP6351585A JP6351585A JPS6321272B2 JP S6321272 B2 JPS6321272 B2 JP S6321272B2 JP 6351585 A JP6351585 A JP 6351585A JP 6351585 A JP6351585 A JP 6351585A JP S6321272 B2 JPS6321272 B2 JP S6321272B2
- Authority
- JP
- Japan
- Prior art keywords
- negative
- section
- magnetic head
- floating surface
- negative buoyancy
- 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
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005339 levitation Methods 0.000 description 1
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】
〔発明の利用分野〕
本発明は正の迎え角をもち、正の浮力を発生す
る浮動面部と負の浮力を発生する浮動面部を有
し、磁気デイスクの回転の起動、停止時に磁気デ
イスクに接触する所謂コンタクトスタートストツ
プ方式の磁気ヘツドスライダに関する。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention has a positive angle of attack, has a floating surface portion that generates a positive buoyancy force, and a floating surface portion that generates a negative buoyancy force, and has a floating surface portion that generates a negative buoyancy force. The present invention relates to a so-called contact start/stop type magnetic head slider that contacts a magnetic disk when stopped.
従来のこの種の磁気ヘツドスライダは例えば特
開昭56−134354号公報に記載されているように、
テーパスライダ部およびフラツトスライダ部によ
り正の浮上力を発生させ、フラツトスライダ部と
クロスレール部で囲まれた負圧ポケツト部で負の
浮力を発生させるようにしている。そして、負圧
ポケツトには大気に連通する連通孔があけられて
いて、連通孔の位置およびその大きさにより負の
浮力の大きさを調節している。このような構成で
は、連通孔で負の浮力を調節しているため、磁気
デイスクのすべての速度範囲で最適な負の浮力を
発生させることが難しい。また、クロスレール部
にスライダの流体流入側と連通する溝を設けて、
この溝の大きさにより負の浮力の大きさを調節し
ている。このような構成でも、前述の場合と同様
に、最適な負の浮力を発生させることは難しい。
A conventional magnetic head slider of this type is, for example, as described in Japanese Patent Application Laid-open No. 134354/1983.
A positive buoyancy force is generated by the taper slider portion and the flat slider portion, and a negative buoyancy force is generated by the negative pressure pocket portion surrounded by the flat slider portion and the cross rail portion. The negative pressure pocket is provided with a communication hole communicating with the atmosphere, and the magnitude of the negative buoyancy is adjusted by the position and size of the communication hole. In such a configuration, since the negative buoyancy is adjusted by the communication hole, it is difficult to generate an optimal negative buoyancy over the entire speed range of the magnetic disk. In addition, a groove is provided in the cross rail section to communicate with the fluid inflow side of the slider.
The size of this groove controls the amount of negative buoyancy. Even with such a configuration, as in the case described above, it is difficult to generate optimal negative buoyancy.
本発明は、スライダに働く負の浮力の大きさを
外部から調節可能とし、低速で浮上しやすく定常
速度で浮上量変動の少ない良好な浮上速度特性を
得られる磁気ヘツドスライダを提供することを目
的とする。
SUMMARY OF THE INVENTION An object of the present invention is to provide a magnetic head slider which allows the magnitude of negative buoyancy acting on the slider to be adjusted from the outside, and which makes it easy to fly at low speeds and obtain good flying speed characteristics with little variation in flying height at steady speeds. shall be.
本発明の特徴とするところは、負の浮力を発生
する浮動面部に、大気側に連通して負の浮力を減
少させるための開口部を設け、この開口部には、
開口面積を変えて負の浮力を制御する負浮力制御
手段を取付け、外部から負の浮力を制御可能とす
るものである。
A feature of the present invention is that the floating surface section that generates negative buoyancy is provided with an opening that communicates with the atmosphere and reduces the negative buoyancy.
A negative buoyancy control means is installed to control negative buoyancy by changing the opening area, so that negative buoyancy can be controlled from the outside.
以下本発明の一実施例を第１図および第２図を
参照して説明する。
An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.
１はテーパスライダ部、２はフラツトスライダ
部、３は負圧ポケツト部である。このテーパスラ
イダ部１およびフラツトスライダ部２により正の
浮上力が生じる。また、フラツトスライダ部２と
クロスレール部４で囲まれた負圧ポケツト部３で
負の浮力が生じる。フラツトスライダ部２とクロ
スレール部４で囲まれた負圧ポケツト部３には、
負の浮力を減少するための開口部として大気に連
通する連通孔６が設けられている。この連通孔６
の上部面には、負浮力制御手段として例えばバル
モルフなどの電歪素子８が取付けられている。電
歪素子８にはスイツチ１０を介して電源９が接続
している。 1 is a taper slider section, 2 is a flat slider section, and 3 is a negative pressure pocket section. A positive floating force is generated by the tapered slider section 1 and the flat slider section 2. Further, negative buoyancy is generated in the negative pressure pocket section 3 surrounded by the flat slider section 2 and the cross rail section 4. In the negative pressure pocket section 3 surrounded by the flat slider section 2 and the cross rail section 4,
A communication hole 6 communicating with the atmosphere is provided as an opening for reducing negative buoyancy. This communication hole 6
An electrostrictive element 8, such as a balmorph, is attached to the upper surface of the vessel as negative buoyancy control means. A power source 9 is connected to the electrostrictive element 8 via a switch 10.
起動、停止時及び低速では、負の浮力は最小に
し速やかに浮上させるためスイツチ１０をONし
電歪素子８を変形させ連通孔６を開の状態とす
る。定常運転速度に達したら、スイツチ１０を
OFFし、電歪素子８を元の形状までもどし、連
通孔６を閉の状態とし、負の浮力を発生させ浮上
量変動を小さくする。電歪素子８のON、OFFは
逆でもかまわない。本実施例によれば、低速で早
く浮上し、定常速度で浮上量変動が少ない良好な
速度特性が得られる。 When starting, stopping, and at low speeds, the switch 10 is turned on to deform the electrostrictive element 8 and open the communication hole 6 in order to minimize negative buoyancy and quickly float. When the steady operating speed is reached, turn switch 10.
OFF, the electrostrictive element 8 is returned to its original shape, the communication hole 6 is closed, and a negative buoyancy is generated to reduce fluctuations in the flying height. The ON and OFF states of the electrostrictive element 8 may be reversed. According to this embodiment, it is possible to obtain good speed characteristics such as rapid levitation at low speed and little fluctuation in flying height at steady speed.
第３図および第４図は本発明の磁気ヘツドスラ
イダの他の実施例である。この実施例は、負の浮
力を減少するための開口部としてクロスレール部
４に溝７を設け、この溝７に負浮力制御手段とし
て電歪素子８を取りつけている。電歪素子８は可
変電源１１に接続されており、電圧を変えること
により溝深さを変え負の浮力を調節することがで
きる。 3 and 4 show other embodiments of the magnetic head slider of the present invention. In this embodiment, a groove 7 is provided in the cross rail portion 4 as an opening for reducing negative buoyancy, and an electrostrictive element 8 is attached to this groove 7 as a negative buoyancy control means. The electrostrictive element 8 is connected to a variable power source 11, and by changing the voltage, the groove depth can be changed and negative buoyancy can be adjusted.
以下詳述したように、本発明のスライダは負の
浮力を外部から制御できるため、低速で早く浮き
あがり、定常速度で浮上量変動が少ない良好な速
度特性が得られるものである。
As described in detail below, since the negative buoyancy of the slider of the present invention can be externally controlled, it can float quickly at low speeds and has good speed characteristics with little variation in flying height at steady speeds.
第１図は本発明の一実施例を示す縦断面図、第
２図はその底面図、第３図は本発明の他の実施例
を示す縦断面図、第４図はその底面図である。
１……テーパスライダ部、２……フラツトスラ
イダ部、３……負圧ポケツト部、４……クロスレ
ール部、５……磁気ヘツド、６……連通孔、７…
…溝、８……電歪素子、９……電源、１０……ス
イツチ、１１……可変電源。
FIG. 1 is a longitudinal sectional view showing one embodiment of the present invention, FIG. 2 is a bottom view thereof, FIG. 3 is a longitudinal sectional view showing another embodiment of the invention, and FIG. 4 is a bottom view thereof. . DESCRIPTION OF SYMBOLS 1...Taper slider part, 2...Flat slider part, 3...Negative pressure pocket part, 4...Cross rail part, 5...Magnetic head, 6...Communication hole, 7...
...Groove, 8...Electrostrictive element, 9...Power supply, 10...Switch, 11...Variable power supply.
Claims (1)
トスライダ部により正の浮力を発生する浮動面部
と、フラツトスライダ部とクロスレール部で囲ま
れた負圧ポケツト部で負の浮力を発生する浮動面
部を有する磁気ヘツドスライダにおいて、前記負
の浮力を発生する浮動面部には、この浮動面部を
大気側に連通して負の浮力を減少させる開口部を
設け、この開口部には、開口面積を変えて負の浮
力を制御する負浮力制御手段を配設したことを特
徴とする磁気ヘツドスライダ。 ２ 浮動面部に設けられた開口部は、負圧ポケツ
ト部に設けられた孔であり、負浮力制御手段は、
この孔の開口量を制御するように孔部分に設けた
電歪素子であることを特徴とする特許請求の範囲
第１項記載の磁気ヘツドスライダ。 ３ 浮動面部に設けられた開口部はクロスレール
部に設けた溝であり、負浮力制御手段は、この溝
の溝高さを制御するように溝部分に設けた電歪素
子であることを特徴とする特許請求の範囲第１項
記載の磁気ヘツドスライダ。[Claims] 1. A floating surface section that generates positive buoyancy by a taper slider section and a flat slider section having a positive angle of attack, and a negative pressure pocket section surrounded by the flat slider section and cross rail section that generates a negative buoyancy force. In a magnetic head slider having a floating surface portion that generates a buoyant force, the floating surface portion that generates a negative buoyant force is provided with an opening that communicates the floating surface portion with the atmosphere to reduce the negative buoyant force. A magnetic head slider characterized in that a negative buoyancy control means is provided for controlling negative buoyancy by changing the opening area. 2. The opening provided in the floating surface is a hole provided in the negative pressure pocket, and the negative buoyancy control means is
The magnetic head slider according to claim 1, wherein the magnetic head slider is an electrostrictive element provided in the hole portion so as to control the opening amount of the hole. 3. The opening provided in the floating surface portion is a groove provided in the cross rail portion, and the negative buoyancy control means is an electrostrictive element provided in the groove portion so as to control the groove height of this groove. A magnetic head slider according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6351585A JPS60223088A (en) | 1985-03-29 | 1985-03-29 | Magnetic head slider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6351585A JPS60223088A (en) | 1985-03-29 | 1985-03-29 | Magnetic head slider |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60223088A JPS60223088A (en) | 1985-11-07 |
| JPS6321272B2 true JPS6321272B2 (en) | 1988-05-06 |
Family
ID=13231432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6351585A Granted JPS60223088A (en) | 1985-03-29 | 1985-03-29 | Magnetic head slider |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60223088A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11464531B2 (en) | 2013-09-27 | 2022-10-11 | Release Medical, Inc. | Tissue incision device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2884774B2 (en) * | 1990-12-01 | 1999-04-19 | 株式会社日立製作所 | Information storage device and its manufacturing method |
| US6445541B1 (en) * | 1998-03-20 | 2002-09-03 | Seagate Technology Llc | High suction air bearing with pressure release |
-
1985
- 1985-03-29 JP JP6351585A patent/JPS60223088A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11464531B2 (en) | 2013-09-27 | 2022-10-11 | Release Medical, Inc. | Tissue incision device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60223088A (en) | 1985-11-07 |
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