JPS601680A - Magnetic disk device - Google Patents

Magnetic disk device

Info

Publication number
JPS601680A
JPS601680A JP10921483A JP10921483A JPS601680A JP S601680 A JPS601680 A JP S601680A JP 10921483 A JP10921483 A JP 10921483A JP 10921483 A JP10921483 A JP 10921483A JP S601680 A JPS601680 A JP S601680A
Authority
JP
Japan
Prior art keywords
disk
magnetic disk
head
magnetic head
radius direction
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
JP10921483A
Other languages
Japanese (ja)
Inventor
Shigemitsu Oguchi
小口　重光
Reizo Kaneko
金子　礼三
Takeo Masuda
増田　武雄
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 JP10921483A priority Critical patent/JPS601680A/en
Publication of JPS601680A publication Critical patent/JPS601680A/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
    • G11B5/54—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 into or out of its operative position or across tracks
    • G11B5/55—Track change, selection or acquisition by displacement of the head
    • G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
    • 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
    • G11B5/488—Disposition of heads
    • G11B5/4886—Disposition of heads relative to rotating disc

Landscapes

  • Supporting Of Heads In Record-Carrier Devices (AREA)
  • Moving Of Heads (AREA)

Abstract

PURPOSE:To improve the record/reproduction characteristics by forming the record/reproduction part of a magnetic head so that it is always set at the minimum gap position in relation to an access action toward the radius direction of a flexible magnetic disk. CONSTITUTION:A guide groove 8 is formed into a spiral shape so that a positioner mobile part 6 has a shaking motion as shown by an arrow B on the basis of the radius direction of a disk 11 in relation to linear movement of an arrow A. That is, the minimum gap position between a magnetic head 10 and the flexible magnetic disk 11 is coincident with the position of a head cap 12. Therefore an shaking motion is obtained on the basis of the disk radius direction in relation to fact that the part 6 containing the head 10 has an access in the radius direction of the disk 11. Then the gap 12 is set at the minimum gap position to the disk 11. As a result, the high recording density is secured to improve the record/reproduction characteristics.

Description

【発明の詳細な説明】 本発明は、磁気ディスクが磁気ヘッドに対して微小な空
気膜を介して浮上するフレキシブル磁気ディスク装置の
改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a flexible magnetic disk device in which a magnetic disk floats above a magnetic head via a minute air film.

従来より、フレキシブル磁気ディスク特有の現象、すな
わち回転中のフレキシブル磁気ディスクと磁気ヘッドと
の相対位置関係に起因して、（１）　７レキシブル磁気
デイスクと磁気ヘッドが相対するディスク面の半径方向
の位１貨が変わると、ディスクＷｄ速の変化に起因して
ディスクと磁気ヘッドの最小隙間位（９ｊｉがディスク
走行方向にずれる。Conventionally, due to a phenomenon peculiar to flexible magnetic disks, that is, the relative positional relationship between the rotating flexible magnetic disk and the magnetic head, (1) the radial position of the disk surface where the flexible magnetic disk and the magnetic head face each other has been When one coin changes, the minimum gap (9ji) between the disk and the magnetic head shifts in the disk running direction due to a change in the disk Wd speed.

（２）　さらに、磁気ヘッドが７レキシプル磁気デイス
クの半径方向に移動すると、ディスクの剛性が変わルデ
ィスクと磁気ヘッドの最小隙間位置がずれる。(2) Furthermore, when the magnetic head moves in the radial direction of the 7-lexiple magnetic disk, the rigidity of the disk changes and the position of the minimum gap between the disk and the magnetic head shifts.

という問題が生じ、この解決策としてポジショナ可動部
になんらの対策がとられていないのが実状である。した
がって、これらの原因により、磁気ヘッドをフレキシブ
ル磁気ディスク面上でアクセスすると、両者で構成され
る最小１５２間位置かディスク走行方向にずれて、最適
な記録再生特性が得られないという欠点があつ／ヒ。こ
の現象は、フレキシブル磁気ディスクの厚さが薄くなシ
、さらにディスク回転数が増加する程顕著に現れる。This problem arises, and the reality is that no measures have been taken for the positioner movable part to solve this problem. Therefore, due to these reasons, when the magnetic head accesses the surface of the flexible magnetic disk, the minimum 152-point position made up of the two is shifted in the disk running direction, resulting in the disadvantage that optimum recording and reproducing characteristics cannot be obtained. Hi. This phenomenon becomes more pronounced as the thickness of the flexible magnetic disk becomes thinner and as the disk rotational speed increases.

本発明は、これらの欠点を解決するため、ポジショナ可
動部に塔載した磁気ヘッドを、フレキシブル磁気ディス
クの半径方向へのアクセス動作と連動して、ディスク半
径方向を軸として揺動させ、ヘッドギャップを磁気ヘッ
ドとフレキシブル磁気ディスクとの最小隙間位置に一致
させるように構成したもので、以下、図面に示した実施
例に基づいて本発明に係る磁気ディスク装置について詳
細に説明する。In order to solve these drawbacks, the present invention swings the magnetic head mounted on the positioner movable part about the disk radial direction in conjunction with the access operation in the radial direction of the flexible magnetic disk, thereby reducing the head gap. The magnetic disk device according to the present invention will be described in detail below based on the embodiment shown in the drawings.

第１図は本発明に係る磁気ディスク装置の概略構成を示
す斜視図でおるが、本実施例は、磁気ディスク装置のア
クセス機構を駆動する方法が数多くあるなかで、ステッ
ピングモータとスパイラル溝付回転板とで構成した例を
示したものである。すなわちベース１に固定したステッ
ピングモータ２にスパイラル溝付回転板３を直結し、ス
パイラル溝には駆動ビン４が係合してスパイラル溝付回
転板３０回転運動を直進運動に変換する。直進運動は連
結板５を介してポジショナ可動部６に伝達され、ポジシ
ョナガイド７で図中矢印Ａの方向に案内される。ポジシ
ョナ可動部６には、本発明の機能を満たすための案内溝
８が設けてあり、案内溝８にはンＪ（ジショナガイド７
に固定したガイドピン９が係合する。FIG. 1 is a perspective view showing a schematic configuration of a magnetic disk device according to the present invention. Among the many methods for driving the access mechanism of a magnetic disk device, this embodiment uses a stepping motor and a spiral grooved rotary device. This figure shows an example of a structure made up of a board and a board. That is, the spiral grooved rotating plate 3 is directly connected to the stepping motor 2 fixed to the base 1, and the driving pin 4 engages with the spiral groove to convert the rotational motion of the spiral grooved rotating plate 30 into linear motion. The linear movement is transmitted to the positioner movable part 6 via the connecting plate 5, and guided by the positioner guide 7 in the direction of arrow A in the figure. The positioner movable part 6 is provided with a guide groove 8 to fulfill the function of the present invention.
A guide pin 9 fixed to is engaged.

案内溝８はポジショナ可動部６が図中人の直進運動を行
うのに連動して、ディスク半径方向を軸として揺動動作
（図中のＢで示す）を行なわせるように、スパイラル状
に形成する。また、案内溝８のスパイラル形状は、磁気
ヘッド１０とフレをシプル磁気ディスク１１との最小隙
間位置とヘッドギャップ１２の位置とか一致するように
スパイラル溝形状音形成する。なお、図中の矢印Ｃはデ
ィスク走行方向を示す。The guide groove 8 is formed in a spiral shape so that the positioner movable part 6 performs a swinging motion (indicated by B in the figure) about the disk radial direction as an axis in conjunction with the linear motion of the person in the figure. do. Further, the spiral shape of the guide groove 8 is formed so that the position of the minimum gap between the magnetic head 10 and the spool magnetic disk 11 matches the position of the head gap 12. Note that arrow C in the figure indicates the disk running direction.

したがって、上記構造により、その効果として磁気ヘッ
ド１０を塔載したポジショナ可動部６がフレキシブル磁
気ディスク１１の半径方向にアクセスするのに連動して
ディスク半径方向を軸とした揺動運動を行い、ヘッドギ
ャップ１２をフレキシブル磁気ディスク１１との最小隙
間位置に一致させ、シーク動作中に磁気ヘッド１０を最
適な記録再生条件に保つととができる。Therefore, with the above structure, the effect is that the positioner movable part 6 carrying the magnetic head 10 performs a swinging movement about the disk radial direction in conjunction with accessing the flexible magnetic disk 11 in the radial direction, and the head By aligning the gap 12 with the minimum gap position with respect to the flexible magnetic disk 11, it is possible to maintain the magnetic head 10 under optimal recording and reproducing conditions during the seek operation.

以上、図面に示した実施例にもとすいて説明したように
、本発明によれば、フレキシブル磁気ディスクに対して
磁気ヘッドをアクセスしても磁気ヘッドの記録再生部を
常に最小隙間位置になるように設定することができるか
ら、高記録密度化全達成することができる。As described above with reference to the embodiment shown in the drawings, according to the present invention, even when the magnetic head accesses the flexible magnetic disk, the recording/reproducing section of the magnetic head is always kept at the minimum gap position. Therefore, it is possible to achieve a high recording density.

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

第１図は本発明に係る磁気ディスク装置の概略構成を示
す斜視図である。 １・・・ベース、２・・・ステッピングモータ、３・・
・スパイラル溝付回転板、４・・・駆動ビン、５・・・
連結板、６・・・ポジショナ可動部、７・・・ポジショ
ナガイド、８・・・案内溝、９・・・ガイドピン、１０
・・・磁気ヘッド、１１・・・フレキシブル磁気ディス
ク、１２・・・ヘッドギャップ 特許出願人　日本電信電話公社 代理人　弁理士　光石士部（他１名）FIG. 1 is a perspective view showing a schematic configuration of a magnetic disk device according to the present invention. 1...Base, 2...Stepping motor, 3...
・Spiral grooved rotary plate, 4... Drive bin, 5...
Connection plate, 6... Positioner movable part, 7... Positioner guide, 8... Guide groove, 9... Guide pin, 10
...Magnetic head, 11...Flexible magnetic disk, 12...Head gap Patent applicant Nippon Telegraph and Telephone Public Corporation agent Patent attorney Shibu Mitsuishi (1 other person)

Claims (1)

【特許請求の範囲】[Claims] フレキシブルな磁気ディスクに対応して記録と再生を行
う磁気ヘッドと、該磁気・＼ラドを前記磁気ディスク面
に位誼決めするポジショナ機構とを有する磁気ディスク
装置において、前記ポジショナ機構の可動部に塔載した
前記磁気ヘッドが前記磁気ディスクの半径方向に移動す
る動作と連動してディスク半径方向を軸として揺動する
ように構成したことを特徴とする磁気ディスク４ぐ置。In a magnetic disk drive having a magnetic head that performs recording and reproducing in correspondence with a flexible magnetic disk, and a positioner mechanism that positions the magnetic head on the surface of the magnetic disk, a movable part of the positioner mechanism has a tower. A four-position magnetic disk arrangement, characterized in that the mounted magnetic head is configured to swing about the disk radial direction in conjunction with the movement of the magnetic disk in the radial direction.
JP10921483A 1983-06-20 1983-06-20 Magnetic disk device Pending JPS601680A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10921483A JPS601680A (en) 1983-06-20 1983-06-20 Magnetic disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10921483A JPS601680A (en) 1983-06-20 1983-06-20 Magnetic disk device

Publications (1)

Publication Number Publication Date
JPS601680A true JPS601680A (en) 1985-01-07

Family

ID=14504485

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10921483A Pending JPS601680A (en) 1983-06-20 1983-06-20 Magnetic disk device

Country Status (1)

Country Link
JP (1) JPS601680A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT391378B (en) * 1989-02-03 1990-09-25 Philips Nv DEVICE FOR SCANING A DISC-SHAPED INFORMATION CARRIER PLATE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT391378B (en) * 1989-02-03 1990-09-25 Philips Nv DEVICE FOR SCANING A DISC-SHAPED INFORMATION CARRIER PLATE

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