JPS61246979A - Magnetic head - Google Patents

Magnetic head

Info

Publication number
JPS61246979A
JPS61246979A JP8702985A JP8702985A JPS61246979A JP S61246979 A JPS61246979 A JP S61246979A JP 8702985 A JP8702985 A JP 8702985A JP 8702985 A JP8702985 A JP 8702985A JP S61246979 A JPS61246979 A JP S61246979A
Authority
JP
Japan
Prior art keywords
floating
disk
slider
head slider
floating head
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
JP8702985A
Other languages
Japanese (ja)
Inventor
Shigeo Saito
斉藤　重夫
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.)
Seiko Epson Corp
Original Assignee
Seiko Epson 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 Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP8702985A priority Critical patent/JPS61246979A/en
Publication of JPS61246979A publication Critical patent/JPS61246979A/en
Pending legal-status Critical Current

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

Abstract

PURPOSE:To obtain a small and stable floating amount by providing a slit such as a groove on a floating surface by means of a floating head and a monolithic slider. CONSTITUTION:The drive and turn of a disk in a magnetic disk device try to float a floating head slider from the disk with the aid of a positive air pressure arising on the floating surface 1 of the monolithic slider. On the contrary, a negative air pressure generated by a groove part 2 returns the floating head slider to the disk surface. With this mutual action the floating head slider can maintain the small stable floating amount. Moreover a change in the floating amount can be eliminated with respect to the difference between relative speeds of inner and outer peripheries of the disk. Thus a uniform recording and reproduction can be available.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、高密度磁気記録技術分野における、磁気ディ
スク装置に用いられる浮動ヘッドスライダ−の形状に関
する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to the shape of a floating head slider used in a magnetic disk device in the field of high-density magnetic recording technology.

〔発明の概要〕[Summary of the invention]

本発明は、磁気ディスク装置用の浮動ヘッドスライダ−
、モノリシックスライダー等において、浮動面に、溝等
のスリットを形成することによって、浮上高さく以下、
浮上量という。）が小さくて安定した浮上特性が得られ
るとともに、均一な記録再生特性が得られるようにした
ものである。The present invention provides a floating head slider for a magnetic disk device.
, monolithic sliders, etc., by forming slits such as grooves on the floating surface, the flying height can be lowered or lowered.
This is called floating amount. ) is small, stable flying characteristics can be obtained, and uniform recording and reproducing characteristics can be obtained.

〔従来技術〕[Prior art]

磁気ディスク装置用のヘッドとして、勤王形気体軸受の
原理を応用した浮動ヘッドスライダ−を使用しているの
は周知の事実である。It is a well-known fact that a floating head slider, which applies the principle of a king-type gas bearing, is used as a head for a magnetic disk drive.

この浮動ヘッドスライダ−またはモノリシックスライダ
ー等は、媒体（以下、ディスクという。〕の駆動、回転
で、スライダーの浮動面に正の空気圧力を受けることに
よって、ディスク上をサブミクロンのスキマを維持して
浮上している。This floating head slider or monolithic slider maintains a submicron gap over the disk by driving and rotating the medium (hereinafter referred to as the disk) and applying positive air pressure to the floating surface of the slider. It's surfacing.

記憶容置の大容量化、高密度化が要求されるなかで、浮
動ヘッドの浮上量は小さくて、安定した特性が要求され
る。As storage capacity and density are required to be increased, a floating head is required to have a small flying height and stable characteristics.

しかし、ディスクの内周側と外周側とでは、ディスクの
回転速度が異なるため、前記のヘッドスライダ−では、
ディスクの周速の増加・減少に伴ない、浮上量が増加・
減少する傾向にあった。However, since the rotational speed of the disk is different between the inner and outer circumferential sides of the disk, the head slider described above
As the circumferential speed of the disk increases/decreases, the flying height increases/decreases.
There was a tendency to decrease.

〔発明が解決しようとする問題点及び目的〕しかし、前
述の従来技術では磁気ディスク装置内の浮動ヘッドスラ
イダ−の浮上量が、ディスク回転速度によって異なるた
め、ディスクの内周側と外周側で記録再生特性が異なる
という問題があった。そこで本発明は、この様な問題点
を解決するもので、その目的とするところは、小さくて
安定した浮上量の浮動ヘッドスライダ−を提供すること
にある。[Problems and Objectives to be Solved by the Invention] However, in the above-mentioned conventional technology, the flying height of the floating head slider in the magnetic disk device differs depending on the disk rotation speed. There was a problem that the playback characteristics were different. SUMMARY OF THE INVENTION The present invention is intended to solve these problems, and its purpose is to provide a floating head slider that is small and has a stable flying height.

〔問題を解決するｔめの手段〕[Tth way to solve the problem]

本発明の磁気ヘッドは浮動ヘッドおよびモノリシックタ
イプのスライダーで、浮動面に溝等のスリットのあるこ
とを特徴とする。The magnetic head of the present invention is a floating head and a monolithic type slider, and is characterized by having slits such as grooves on the floating surface.

〔作用〕[Effect]

本発明の上記の浮動ヘッドおよびモノリシックタイプの
溝付きスライダーによれば、浮動面に正の空気圧が慟ら
き、浮動面上の溝の部分には負の空気圧が働らくことに
よってつり合い、小さくて安定した浮上ｔが得られるこ
とになる。According to the above-mentioned floating head and monolithic type grooved slider of the present invention, positive air pressure is applied to the floating surface, and negative air pressure is applied to the grooved portion on the floating surface, which is balanced and is small and stable. Therefore, a floating t can be obtained.

〔実施例〕〔Example〕

第１図は不発明の実施例による溝付き浮動ヘッドスライ
ダ−の斜視図である。FIG. 1 is a perspective view of a grooved floating head slider according to an embodiment of the invention.

第２図は従来の浮動ヘッドスライダ−と本発明の溝付き
浮動ヘッドスライダ−の浮上特性の結果。FIG. 2 shows the results of the flying characteristics of a conventional floating head slider and a grooved floating head slider of the present invention.

である。It is.

磁気ディスク装置内のディスクの駆動・回転で第１図の
浮動ヘッドスライダ−の１の浮動面に発生する正の空気
圧によって、浮動ヘッドスライダ−がディスク上を浮こ
うとする。The floating head slider tends to float above the disk due to the positive air pressure generated on the floating surface of the floating head slider 1 shown in FIG. 1 when the disk in the magnetic disk device is driven and rotated.

これに反して、第１図の２の溝部によって発生する負の
空気圧によって、浮動ヘッドスライダ−がディスク面へ
引き戻されようとする力が発生する。On the other hand, the negative air pressure generated by the groove 2 in FIG. 1 generates a force that tends to pull the floating head slider back toward the disk surface.

この相互作用によって、浮動ヘッドスライダ−が、ディ
スク上を小さくて安定した浮上量を維持して浮いている
ことになるＣまた第２図から明らかなように、本発明の
溝付スライダーは、ディスクの内外周による相対速度の
ちがいに対しても従来のスライダーのそれより、浮上量
は変化しない特性を有する。Due to this interaction, the floating head slider floats above the disk while maintaining a small and stable flying height.As is clear from FIG. 2, the grooved slider of the present invention Compared to conventional sliders, the flying height does not change even when the relative speed differs depending on the inner and outer circumferences of the slider.

〔発明の効果〕〔Effect of the invention〕

以上述べたように、不発明によれば、浮動ヘッドスライ
ダ−の浮動面に、溝等のスリットをつけることによって
、ディスクの回転速度に関係なくて、小さくて安定した
浮上量の浮動ヘッドスライダ−が得られることになる。As described above, according to the invention, by forming slits such as grooves on the floating surface of the floating head slider, the floating head slider can have a small and stable flying height regardless of the rotational speed of the disk. will be obtained.

従って、ディスクの内周側と外周側での浮上量が大きく
変わらないため、ある程度均一な記録再生特性が得られ
る。Therefore, since the flying height between the inner and outer circumferential sides of the disk does not differ greatly, it is possible to obtain somewhat uniform recording and reproducing characteristics.

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

第１図は不発明の浮動ヘッドスライダ−の斜視図。 １・・・浮動面 ２・・・溝部 第２図はスライダーの浮上特性図。 ａ・・・従来の浮動ヘッドスライダ−の浮上特性ｂ・・
・本発明の溝付浮動ヘッドスライダ−の浮上特性 以　　上FIG. 1 is a perspective view of an inventive floating head slider. 1...Floating surface 2...Groove portion Figure 2 shows the floating characteristics of the slider. a... Flying characteristics of conventional floating head slider b...
・Flying characteristics of the grooved floating head slider of the present invention

Claims (1)

【特許請求の範囲】[Claims] 浮動ヘッドおよびモノリシックタイプのスライダーで、
浮動面に溝等のスリットのあることを特徴とした磁気ヘ
ッド。With floating head and monolithic type sliders,
A magnetic head characterized by having slits such as grooves on the floating surface.
JP8702985A 1985-04-23 1985-04-23 Magnetic head Pending JPS61246979A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8702985A JPS61246979A (en) 1985-04-23 1985-04-23 Magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8702985A JPS61246979A (en) 1985-04-23 1985-04-23 Magnetic head

Publications (1)

Publication Number Publication Date
JPS61246979A true JPS61246979A (en) 1986-11-04

Family

ID=13903524

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8702985A Pending JPS61246979A (en) 1985-04-23 1985-04-23 Magnetic head

Country Status (1)

Country Link
JP (1) JPS61246979A (en)

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