JPS6161263A - Magnetic disk driving device - Google Patents

Magnetic disk driving device

Info

Publication number
JPS6161263A
JPS6161263A JP18265884A JP18265884A JPS6161263A JP S6161263 A JPS6161263 A JP S6161263A JP 18265884 A JP18265884 A JP 18265884A JP 18265884 A JP18265884 A JP 18265884A JP S6161263 A JPS6161263 A JP S6161263A
Authority
JP
Japan
Prior art keywords
head
magnetic disk
head arm
magnetic
spring
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.)
Granted
Application number
JP18265884A
Other languages
Japanese (ja)
Other versions
JPH0481829B2 (en
Inventor
Toru Sakamoto
通 坂本
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP18265884A priority Critical patent/JPS6161263A/en
Publication of JPS6161263A publication Critical patent/JPS6161263A/en
Publication of JPH0481829B2 publication Critical patent/JPH0481829B2/ja
Granted 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

Landscapes

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

Abstract

PURPOSE:To obtain a stable head touch by installing a wall for head arm- pushing spring slipping prevention around the periphery of a head arm-pushing spring abutting part. CONSTITUTION:A hub receiver 10, for which a magnetic disk is fitted, is installed at the tip of the central part of a magnetic disk rotation driving device 4, and a head arm 12 pushes the first magnetic head 7 and the second magnetic head 8 to the magnetic disk by a head arm-pushing spring. The wall 19 is installed around the periphery of the spring abutting part 18 into which the tip of the head arm-pushing spring 13 is inserted. When a cassette holder 15 is assembled, the head arm 12 is pushed up in the direction of an arrow, and then, the tip of the pushing spring 13 contacts with the wall 19, the head arm 12 rises hardly any more and even when strong impact pressure such as drop impact pressure is applied, slipping from the spring abutting part 18 of the pushing spring 13 is eliminated.

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明は、磁気ディスク駆動装置に係り、特に磁気ヘッ
ド等回りの構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a magnetic disk drive device, and particularly to a structure surrounding a magnetic head.

〔発明の背景〕[Background of the invention]

一般的に、磁気ディスク駆動装置（以下ＦＤＤと略す）
は、キャリッジ先端部に磁気ヘッドを設け、そのキャリ
ッジとステッピングモータをスチールベルト等の手段で
連結し、磁気ディスク面に沿ってキャリッジが平行移動
して、磁気ヘッドが磁気ディスク上の規定のトラックに
位置決めされる構成であることは、特公昭５３−１２３
９１１により周知となっているものである。Generally, a magnetic disk drive (hereinafter abbreviated as FDD)
A magnetic head is installed at the tip of a carriage, and the carriage and a stepping motor are connected by means such as a steel belt.The carriage moves in parallel along the surface of the magnetic disk, and the magnetic head moves to a specified track on the magnetic disk. The fact that it has a positioning structure is disclosed in Japanese Patent Publication No. 53-123.
This is well known from 911.

又、上記キャリッジの上側に設けられた磁気ヘッド等が
取り付けられたヘッドアームをヘッドアーム押しバネに
よって規定圧力で磁気ヘッドに押しつける構成も周知と
なっているものである。It is also well known that a head arm provided on the upper side of the carriage, to which a magnetic head or the like is attached, is pressed against the magnetic head with a specified pressure by a head arm push spring.

以上の周知構成をもとにした、現状のＦＤＤ″ｒ：はヘ
ッドアーム押しバネはへラドアームに設けられた溝状の
バネ当接部挿入され、又この溝部には磁気ディスクの中
心方向に対するストツノく−がない高次の問題があった
。In the current FDD''r, which is based on the above-described well-known configuration, the head arm push spring is inserted into a groove-shaped spring contact part provided on the helad arm, and this groove has a stopper with respect to the center direction of the magnetic disk. There were many high-level problems.

（１）　　組立時、ヘッドアームを押し上げてカセット
ホルダーを組み付ける工程があるが、このとき必要以上
にヘッドアームを押し上けてしまりと、ヘツドアーム押
しバネがヘッドアームの溝状のノくネ当接部から外れて
しまう。(1) During assembly, there is a step to push up the head arm and assemble the cassette holder, but if you push the head arm up more than necessary, the head arm push spring may come into contact with the groove-shaped groove on the head arm. I will be left out of the club.

（２）落下衝撃時等、強い衝撃が加わると、上記（１）
と同様にヘッドアーム押しバネがヘッドアームの溝状の
バネ当接部から外れてしまう。(2) If a strong impact is applied, such as during a fall, the above (1)
Similarly, the head arm push spring comes off from the groove-shaped spring contact portion of the head arm.

上記（１）、（２）よりヘッドアームを規定圧力で磁気
ヘッドに押しつける事ができなくなる為、ヘッドタッチ
の悪化（性能の低下）を招く結果となる。From (1) and (2) above, it becomes impossible to press the head arm against the magnetic head with a specified pressure, resulting in deterioration in head touch (deterioration in performance).

〔発明の目的〕[Purpose of the invention]

本発明の目的は、上記した現状構造（従来技術）の間聰
点をなくシ、ヘッドタッチの品質を保持する事でるる。An object of the present invention is to eliminate the gap in the current structure (prior art) described above and maintain the quality of head touch.

〔発明の概要〕[Summary of the invention]

本発明の特徴とするところは、ヘッドアームの、磁気デ
ィスクに規定圧力で押しつける為のヘッドアーム押しバ
ネ当接部の周囲に、該ヘッドアーム押しバネ外れ防止用
の壁を設けた事でるる。A feature of the present invention is that a wall for preventing the head arm push spring from coming off is provided around the contact portion of the head arm push spring for pressing the head arm against the magnetic disk with a specified pressure.

〔発明の実施例〕[Embodiments of the invention]

以下、図面に基つき本発明の一実施例を説明する。まず
、現状のＦＤＤの全体（１１？成について説明する。Hereinafter, one embodiment of the present invention will be described based on the drawings. First, we will explain the overall structure of the current FDD.

ｌはシャーシでメジ、装置の各部品が取り付けられる。1 is the chassis to which each part of the device is attached.

４は磁気ディスク１１を回転させる為の駆動装置であり
、その中心部先端には磁気ディスク１１を装着するハブ
受け１０が設けられている。Reference numeral 4 denotes a drive device for rotating the magnetic disk 11, and a hub receiver 10 on which the magnetic disk 11 is mounted is provided at the tip of the center portion thereof.

１５は磁気ディスク１１をＦＤＤ本体に挿入したとき、
ハブ受ｌＯに装着する為のガイド及び押えとなるカセッ
トホルダーである。１６は磁気ディスク１１をハブ受け
１０に６る圧力で押し付けて、回転駆動させるためのコ
レットであり、コレットホルダー１７に回転自在に取り
付けられ、さらにコレットホルダー１７はカセットボル
ダ−１５の一部に支持、取付けられる。７，８は磁気デ
ィスク１１に書き込み、読み出しを行うための第１磁気
ヘツドと第２磁気ヘツドでらシ、第１磁気ヘツド７はキ
ャリッジ５に接着等の手段にょυ　　　　　゛取シ付け
られている。又、第２磁気ヘツド８は、ヘッドアーム１
２に接着等の手段にょシ取り付けられている。ヘッドア
ーム１２にはへラドアームバネ１４が一体成形され、ヘ
ッドアーム１２はへラドアームバネ１４を介してキャリ
ッジ５に上下動自在に取り付けられている。又、ヘッド
アーム１２はへラドアーム押しバネ１３により規定圧力
で第１磁気ヘツド７、第２磁気ヘツド８を磁気ディスク
１１に押しつける構成となっており、ヘッドアーム押し
バネ１３はキャリッジ５に取付ネジ２２により締付固定
された軸支え１９のバネ挿入用突起２１を支点として挿
入され、その先端はへラドアーム１２の一部に設けられ
た溝状のバネ当接部１８に挿入されている。３はキャリ
ッジ５を磁気ディスク１１面に沿って平行移動させる為
のステッピングモータでロシ、スチールベルト２３を介
してキャリッジ５に連結され、キャリッジ５はガイドシ
ャフト６を介して摺動可能にシャーシＩＫ取り付けられ
る。２は各部品を制御するための上基板であり、シャー
シｌに各部品取付後、最後に取り付けられる。15, when the magnetic disk 11 is inserted into the FDD main body,
This is a cassette holder that serves as a guide and hold for attaching to the hub holder lO. Reference numeral 16 denotes a collet for pressing the magnetic disk 11 against the hub receiver 10 with a pressure of 6 to drive the magnetic disk, and is rotatably attached to a collet holder 17, and the collet holder 17 is supported by a part of the cassette boulder 15. , mounted. Reference numerals 7 and 8 are a first magnetic head and a second magnetic head for writing to and reading from the magnetic disk 11. The first magnetic head 7 is attached to the carriage 5 by adhesive or other means. . Further, the second magnetic head 8 is attached to the head arm 1.
2 by adhesive or other means. A helad arm spring 14 is integrally molded on the head arm 12, and the head arm 12 is attached to the carriage 5 via the helad arm spring 14 so as to be vertically movable. Further, the head arm 12 is configured to press the first magnetic head 7 and the second magnetic head 8 against the magnetic disk 11 with a specified pressure by a head arm pressing spring 13, and the head arm pressing spring 13 is attached to the carriage 5 by a mounting screw 22. It is inserted using the spring insertion protrusion 21 of the shaft support 19 which is tightened and fixed as a fulcrum, and its tip is inserted into the groove-shaped spring contact part 18 provided in a part of the helad arm 12. 3 is a stepping motor for moving the carriage 5 in parallel along the surface of the magnetic disk 11, and is connected to the carriage 5 via a steel belt 23, and the carriage 5 is slidably attached to the chassis IK via a guide shaft 6. It will be done. 2 is an upper board for controlling each component, and is attached last after each component is attached to the chassis 1.

以上の構成のもとに、カセットホルダー１５を組み付け
る時には、ヘッドアーム１２を磁気ディスク１１末装渭
時よりも図の矢印方向に押し上げる必要がおるが、この
時必要以上に押し上げてしまうとヘッドアーム押しバネ
１３の先端が溝状のバネ当接部１８から外れてしまい、
第１磁気ヘツド７、第２磁気ヘツド８を磁気ディスク１
１に規定の圧力で押しつける事ができなくなり、ベッド
タッチの悪化（性能の低下）を招く結果となってしまう
。このことは、落下衝撃時等、強い＠撃が加わつ次時も
全く同様の結果となってしまう。When assembling the cassette holder 15 based on the above configuration, it is necessary to push the head arm 12 up in the direction of the arrow in the figure more than when the magnetic disk 11 is loaded at the end. The tip of the push spring 13 comes off the groove-shaped spring contact part 18,
The first magnetic head 7 and the second magnetic head 8 are connected to the magnetic disk 1.
1 with the specified pressure, resulting in worsening of bed touch (deterioration of performance). This will result in exactly the same result the next time a strong @ impact is applied, such as during a fall impact.

次に本発明によるヘッドアーム部の構造について説明す
る。ヘッドアーム１２のへラドアーム押しバネ１３の先
端が挿入されるバネ当接部１８の周囲には壁１９が設け
られている。この壁１９のバネ当接ｇｔｓからの高さは
、ヘッドアーム押しバネ１３の先端のＲ部よりもすこし
商い程度のものである。又このｉ１９は磁気ディスク１
１の中心方向及び、その両側面に設けられている。以上
本発明の構造によれば、カセットホルダー１５組み付は
時、ヘッドアーム１２を磁気ディス冬１１未装着時より
も必要以上に図の矢印方向に押し上げるとへラドアーム
押しバネ１３の先端がヘッドアーム１２に設けた壁１９
に当／＋シ、ヘッドアーム１２はそれ以上、上がらなく
なり、ヘッドアーム押しバネ１３のバネ当接部１８から
の外れはなくなる。Next, the structure of the head arm portion according to the present invention will be explained. A wall 19 is provided around a spring contact portion 18 into which the tip of the helad arm push spring 13 of the head arm 12 is inserted. The height of this wall 19 from the spring abutment gts is slightly larger than the R portion at the tip of the head arm push spring 13. Also, this i19 is magnetic disk 1
1 and on both sides thereof. According to the structure of the present invention, when the cassette holder 15 is assembled, if the head arm 12 is pushed up in the direction of the arrow in the figure more than necessary than when the magnetic disk holder 11 is not attached, the tip of the helad arm pushing spring 13 will be pushed up against the head arm. Wall 19 installed at 12
When this happens, the head arm 12 will no longer rise, and the head arm push spring 13 will no longer come off the spring contact portion 18.

落下衝撃時等、強い衝撃が加わった時も全く同様にヘッ
ドアーム押しバネ１３のバネ当接部１８からの外れはな
くなる。Even when a strong impact is applied such as a fall impact, the head arm push spring 13 will not come off from the spring contact portion 18 in exactly the same way.

〔発明の効果〕〔Effect of the invention〕

以上本発明によれば、組立時、落下衝撃時等のへラドア
ーム押しバネのヘッドアーム当接部からの外れがなくな
る為、常にヘッドアームを規定圧力で磁気ヘッドに押し
つける事ができ、安定したヘッドタッチ（性能ンを得る
事ができるという効果がある。As described above, according to the present invention, since the head arm pressing spring does not come off from the head arm abutting part during assembly, drop impact, etc., the head arm can always be pressed against the magnetic head with a specified pressure, and the head is stable. It has the effect of being able to obtain touch (performance).

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

第１図は現状のＦＤＤを上基板側から見た図、第２図は
磁気ディスク未装着時の要部断面図、第３図は磁気ディ
スク装着時の要部断面図、第４図は本発明によるヘッド
アーム部の構造を示す断面図、第５図は第４図のＢ視図
でろる。 ４・・・駆動装置、５・・・キャリッジ、７・・・磁気
ヘッド（１）、８・・・磁気ヘッド（２）、１０・・・
ハブ受け、１１・・・磁気ディスク、１２・・・ヘッド
アーム、１３・・・ヘッドアーム押しバネ、１８・・・
バネ当接部、１９・・・壁。Figure 1 is a view of the current FDD as seen from the upper board side, Figure 2 is a sectional view of the main part when the magnetic disk is not installed, Figure 3 is a sectional view of the main part when the magnetic disk is installed, and Figure 4 is the book. FIG. 5 is a cross-sectional view showing the structure of the head arm portion according to the invention, which is a view taken from B in FIG. 4. 4... Drive device, 5... Carriage, 7... Magnetic head (1), 8... Magnetic head (2), 10...
Hub holder, 11...Magnetic disk, 12...Head arm, 13...Head arm push spring, 18...
Spring contact part, 19... wall.

Claims (1)

【特許請求の範囲】[Claims] １、磁気ディスクを回転駆動する駆動装置と、磁気ディ
スクに書き込み、読み出しを行うための磁気ヘッドをキ
ャリッジの上下にあるいは片側に設け、駆動装置先端に
リブ受を備えて、磁気ディスクを装着させ、磁気ヘッド
を磁気ディスク面に平行移動させる様構成した磁気ディ
スク駆動装置において、キャリッジの上側に設けられた
磁気ヘッド等が取り付けられたヘッドアームの、磁気デ
ィスクに規定圧力で押しつけるためのヘッドアーム押し
バネ当接部周囲に、該ヘッドアーム押しバネ外れ防止用
の壁を設けた事を特徴とする磁気ディスク駆動装置。1. A drive device for rotating the magnetic disk and a magnetic head for writing and reading data on the magnetic disk are provided above and below the carriage or on one side, and a rib holder is provided at the tip of the drive device to mount the magnetic disk, In a magnetic disk drive device configured to move a magnetic head parallel to a magnetic disk surface, a head arm push spring is used to press a head arm, to which a magnetic head or the like is attached, provided above a carriage, against a magnetic disk with a specified pressure. A magnetic disk drive device characterized in that a wall for preventing the head arm push spring from coming off is provided around the contact portion.
JP18265884A 1984-09-03 1984-09-03 Magnetic disk driving device Granted JPS6161263A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18265884A JPS6161263A (en) 1984-09-03 1984-09-03 Magnetic disk driving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18265884A JPS6161263A (en) 1984-09-03 1984-09-03 Magnetic disk driving device

Publications (2)

Publication Number Publication Date
JPS6161263A true JPS6161263A (en) 1986-03-29
JPH0481829B2 JPH0481829B2 (en) 1992-12-25

Family

ID=16122166

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18265884A Granted JPS6161263A (en) 1984-09-03 1984-09-03 Magnetic disk driving device

Country Status (1)

Country Link
JP (1) JPS6161263A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6390062A (en) * 1986-10-02 1988-04-20 Seiko Epson Corp Magnetic recording device
JPH0428177U (en) * 1990-07-03 1992-03-05

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6390062A (en) * 1986-10-02 1988-04-20 Seiko Epson Corp Magnetic recording device
JPH0428177U (en) * 1990-07-03 1992-03-05

Also Published As

Publication number Publication date
JPH0481829B2 (en) 1992-12-25

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