JPH0152825B2 - - Google Patents
Info
- Publication number
- JPH0152825B2 JPH0152825B2 JP1586884A JP1586884A JPH0152825B2 JP H0152825 B2 JPH0152825 B2 JP H0152825B2 JP 1586884 A JP1586884 A JP 1586884A JP 1586884 A JP1586884 A JP 1586884A JP H0152825 B2 JPH0152825 B2 JP H0152825B2
- Authority
- JP
- Japan
- Prior art keywords
- head
- floppy disk
- magnetic head
- magnetic
- arm
- 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
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007257 malfunction Effects 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/32—Maintaining desired spacing between record carrier and head, e.g. by fluid-dynamic spacing
Landscapes
- Supporting Of Heads In Record-Carrier Devices (AREA)
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明はフロツピーデイスク装置のヘツド支持
機構に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a head support mechanism for a floppy disk device.
フロツピーデイスクを回転し、これに接触する
磁気ヘツドにより信号の記録および再生を行うフ
ロツピーデイスク装置のうち両面記録型のものに
おいては、磁気ヘツドを保持するヘツド保持機構
として第１図に示すものが使用される。
In double-sided recording type floppy disk devices, which rotate a floppy disk and record and reproduce signals using a magnetic head in contact with the floppy disk, the head holding mechanism that holds the magnetic head is shown in Figure 1. is used.
これは第１図ａの平面図、第１図ｂの正面図に
示されるように磁気ヘツド全体を支持し、フロツ
ピーデイスクの径方向に自由に往復移動できる断
面Ｌ字状の長方形ブロツクよりなるキヤリツジ１
の一端側にある突出部１ａ上面にねじ３で固定さ
れた板ばね２を介してヘツドアーム４が設けら
れ、このヘツドアーム４の先端部下面にはサイド
１側ヘツド５が下向きに、このサイド１側ヘツド
５に対向するようにキヤリツジ１の他端側上面に
はサイド０側ヘツド６が上向きにそれぞれ取付け
られている。また、ヘツドアーム４とキヤリツジ
１との間には引張ばね７が連結されていて、ヘツ
ドアーム４を下方に付勢している。 As shown in the plan view of FIG. 1a and the front view of FIG. Carriage 1
A head arm 4 is provided on the upper surface of the protruding portion 1a at one end via a plate spring 2 fixed with a screw 3, and a side 1 side head 5 faces downward on the lower surface of the distal end of this head arm 4. A side 0 side head 6 is attached upwardly to the upper surface of the other end of the carriage 1 so as to face the head 5. Further, a tension spring 7 is connected between the head arm 4 and the carriage 1, and urges the head arm 4 downward.
このような構成のヘツド支持機構を用いたフロ
ツピーデイスクの情報記録／再生は次のように行
われる。 Information recording/reproduction on a floppy disk using the head support mechanism having such a configuration is performed as follows.
フロツピーデイスクの装入前にはヘツドアーム
４はヘツドロード機構（図示せず）によつて上方
へ持上げられており、２つのヘツド５および６の
間には空隙が生じている。この状態でフロツピー
デイスク８を装入するとヘツドロード機構によつ
て２つのヘツド５および６はそれぞれフロツピー
デイスク８の上面および下面に接触し、しかも引
張ばね７の作用でヘツド面はフロツピーデイスク
表面に所定の圧力で密着する。したがつてフロツ
ピーデイスクに対し、高密度で安定性の高い記
録／再生が可能である。 Before loading the floppy disk, the head arm 4 is lifted upward by a head loading mechanism (not shown), creating a gap between the two heads 5 and 6. When the floppy disk 8 is loaded in this state, the head load mechanism causes the two heads 5 and 6 to come into contact with the upper and lower surfaces of the floppy disk 8, respectively, and due to the action of the tension spring 7, the head surfaces are brought into contact with the surface of the floppy disk. It adheres to the body with the specified pressure. Therefore, high-density and highly stable recording/reproducing is possible on the floppy disk.
しかしながら、このようなヘツド支持機構にお
いてはフロツピーデイスクを水平状態で使用する
場合には問題がないが、例えばフロツピーデイス
ク装置全体を90゜傾け、フロツピーデイスクを垂
直状態で使用すると、ヘツドおよびヘツドアーム
の自重がフロツピーデイスク面方向に作用しない
ため磁気ヘツド５および６のフロツピーデイスク
８に対する圧力が変化し、情報の記録／再生にお
いてエラーを生ずることがある。これを防止する
ためにばね７のばね定数を大きくとることも考え
られるが、あまり強い圧力でヘツドをフロツピー
デイスク面に押しつけることはヘツドおよびフロ
ツピーデイスクの寿命を短縮することになり、採
用できない。
However, with such a head support mechanism, there is no problem when the floppy disk is used horizontally, but if the entire floppy disk device is tilted 90 degrees and the floppy disk is used vertically, the head and Since the weight of the head arm does not act in the direction of the floppy disk surface, the pressure of the magnetic heads 5 and 6 against the floppy disk 8 changes, which may cause errors in recording/reproducing information. In order to prevent this, it is possible to increase the spring constant of spring 7, but pressing the head against the floppy disk surface with too strong pressure will shorten the life of the head and floppy disk, so this cannot be adopted. .
本発明は上述の問題点に鑑みてなされたもの
で、フロツピーデイスク装置の設置方向を変化さ
せてもヘツド圧力の変化を生じないヘツド支持機
構を提供することを目的とする。
The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a head support mechanism that does not cause a change in head pressure even when the installation direction of a floppy disk device is changed.
上記目的の達成のため、本発明においては、一
端側上面に第１の磁気ヘツドを備え、かつフロツ
ピーデイスクの径方向に往復移動自在とされたキ
ヤリツジと、このキヤリツジの側部上方に左右対
をなして形成された一対のピボツト軸受と、前記
第１の磁気ヘツドに対向するように第２の磁気ヘ
ツドを一端側下面に有し、かつ前記ピボツト軸受
により回動自在に支持されるヘツドアームと、こ
のヘツドアームの前記一端側を前記第１および第
２の磁気ヘツド間に挿入されたフロツピーデイス
クの方向に対し所定の偏寄力を印加するように付
勢する弾性手段とを具備したことを特徴としてお
り、フロツピーデイスク装置の設置方向にかかわ
らずヘツド圧力が一定で誤動作を生ずることが少
ないものである。
In order to achieve the above object, the present invention includes a carriage which is provided with a first magnetic head on the upper surface of one end and is movable back and forth in the radial direction of the floppy disk, and a left and right pair of magnetic heads arranged above the side of the carriage. a head arm having a second magnetic head on a lower surface of one end thereof opposite to the first magnetic head and rotatably supported by the pivot bearing; and elastic means for biasing the one end of the head arm so as to apply a predetermined biasing force in the direction of the floppy disk inserted between the first and second magnetic heads. A unique feature is that the head pressure is constant regardless of the direction in which the floppy disk device is installed, and malfunctions are less likely to occur.
以下、図面を参照しながら本発明の一実施例を
詳細に説明する。
Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.
第２図は本発明にかかるフロツピーデイスク装
置のヘツド支持機構を示す図であつて第２図ａは
平面図、第２図ｂは正面図である。これによれ
ば、略長方形ブロツクをなすと共に一端側上面に
サイド０側磁気ヘツド１８を有し、かつフロツピ
ーデイスク２０の径方向に自由に往復移動できる
キヤリツジ１１の側部には上方に形成された一対
の突出部１１ａおよび１１ｂが設けられており、
それらの対応する位置にはピボツト軸受１５がそ
れぞれはめ込まれている。この軸受１５には、ヘ
ツドアーム１２に固定ねじ１３により固着された
軸１４が係合しており、ヘツドアーム１２は回動
自在となつている。このヘツドアーム１２は略長
方形板をなしており、その一端側下面にはサイド
０側磁気ヘツド１８のヘツドと対向するサイド１
側磁気ヘツド１７を備えている。ここで、ヘツド
アーム１２は、軸１４から磁気ヘツド１７側端部
までの部分１２ａよりも軸１４から反対側端部ま
での部分１２ｂが幅広かつ厚く形成されており、
磁気ヘツド１７を含めた磁気ヘツド１７側のヘツ
ドアームの重量は、反対側のヘツドアームの重量
と等しく、釣り合い状態となつている。さらに、
ヘツドアーム１２の磁気ヘツド１７の反対側とキ
ヤリツジ１１間には圧縮コイルばね１９が取付け
られており、ヘツドアーム１２に対し、対向する
磁気ヘツド１７および１８間に挿入されたフロツ
ピーデイスク２０に所定の偏寄力を印加してい
る。 FIG. 2 is a diagram showing a head support mechanism of a floppy disk device according to the present invention, in which FIG. 2a is a plan view and FIG. 2b is a front view. According to this, the carriage 11 has a substantially rectangular block, has a side 0 side magnetic head 18 on the upper surface of one end, and can freely reciprocate in the radial direction of the floppy disk 20. A pair of protrusions 11a and 11b are provided,
Pivot bearings 15 are respectively fitted in their corresponding positions. A shaft 14 fixed to the head arm 12 by a fixing screw 13 is engaged with the bearing 15, so that the head arm 12 is rotatable. This head arm 12 has a substantially rectangular plate shape, and has a side 1 on the lower surface of one end opposite to the head of the side 0 side magnetic head 18.
A side magnetic head 17 is provided. Here, in the head arm 12, a portion 12b from the shaft 14 to the opposite end is wider and thicker than a portion 12a from the shaft 14 to the end on the magnetic head 17 side.
The weight of the head arm on the magnetic head 17 side, including the magnetic head 17, is equal to the weight of the head arm on the opposite side, and is in a balanced state. moreover,
A compression coil spring 19 is installed between the carriage 11 and the opposite side of the magnetic head 17 of the head arm 12, and a floppy disk 20 inserted between the opposing magnetic heads 17 and 18 with respect to the head arm 12 is biased in a predetermined manner. Applying force.
なお、この実施例ではピボツト軸受１５を取付
けた一方の突出部１１ａにおいて、軸１４の遊び
をなくすように軸受１５を内方に押しつけるため
の圧縮コイルばね１６が設けられている。 In this embodiment, a compression coil spring 16 is provided on one of the protrusions 11a to which the pivot bearing 15 is attached, for pressing the bearing 15 inward so as to eliminate play in the shaft 14.
以上の実施例においては、ヘツドアームの釣り
合いを取るのにヘツドアーム自体の形状を回動軸
の両側で変えるようにしているが、スペースが許
せば同一形状としてもよく、また、磁気ヘツドと
反対側に適当な錘を搭載したり、磁気ヘツドと反
対側のヘツドアームをより比重の大きい材料で形
成することにより小さな形状とすることもでき
る。 In the above embodiment, the shape of the head arm itself is changed on both sides of the rotation axis in order to balance the head arm, but if space permits, the shape may be the same, or the shape may be changed on the opposite side from the magnetic head. It can also be made smaller by mounting a suitable weight or by forming the head arm on the opposite side of the magnetic head from a material with a higher specific gravity.
また、釣り合い状態にあるヘツドアームに対し
２つの磁気ヘツド間に挾まれたフロツピーデイス
クに対し所定の偏寄力を印加するようにするため
に、実施例においては磁気ヘツド側と反対側に圧
縮コイルばねを取付けているが、磁気ヘツド側に
引張コイルばねを取付けてもよく、その他公知の
あらゆる弾性手段を用いることができる。 In addition, in order to apply a predetermined biasing force to the floppy disk held between two magnetic heads with respect to the head arm in a balanced state, in the embodiment, a compression coil is placed on the side opposite to the magnetic head side. Although a spring is attached, a tension coil spring may be attached to the magnetic head side, or any other known elastic means may be used.
以上のように、本発明にかかるフロツピーデイ
スク装置のヘツド支持機構においては、第１の磁
気ヘツドを一端側に有するキヤリツジの側部上方
に設けられたピボツト軸受により釣り合い状態で
回動自在に支持され、第１の磁気ヘツドに対向す
る第２の磁気ヘツドを一端側に有するヘツドアー
ムを備え、このヘツドアームを第１および第２の
磁気ヘツド間に挿入されたフロツピーデイスクの
方向に対し所定の偏寄力を印加するように付勢す
る弾性手段を具備しており、磁気ヘツド圧力は磁
気ヘツドやヘツドアームの重量に難関係に弾性手
段による付勢のみによつて定まるため、フロツピ
ーデイスク装置の設置方向にかかわらず、フロツ
ピーデイスクに対する磁気ヘツドの接触状態が一
定で、例えばスペース効率を向上させるために垂
直状態で設置しても情報の記録／再生においてエ
ラーを生じにくいフロツピーデイスク装置を実現
することができる。
As described above, in the head support mechanism of the floppy disk device according to the present invention, the first magnetic head is rotatably supported in a balanced state by the pivot bearing provided above the side of the carriage having one end thereof. The head arm has a second magnetic head at one end facing the first magnetic head, and the head arm is tilted at a predetermined angle with respect to the direction of the floppy disk inserted between the first and second magnetic heads. The magnetic head pressure is determined only by the biasing force of the elastic means, regardless of the weight of the magnetic head or head arm. To realize a floppy disk device in which the state of contact of a magnetic head with the floppy disk is constant regardless of the direction, and for example, even when installed vertically to improve space efficiency, errors are unlikely to occur in recording/reproducing information. be able to.
第１図はフロツピーデイスク装置のヘツド支持
機構を示す説明図、第２図は本発明にかかるフロ
ツピーデイスク装置のヘツド支持機構の一実施例
を示す説明図である。
１，１１…キヤリツジ、２…板ばね、４，１２
…ヘツドアーム、５，１７…サイド１側磁気ヘツ
ド、６，１８…サイド０側磁気ヘツド、８，２０
…フロツピーデイスク、７…引張ばね、１４…
軸、１５…ピボツト軸受、１９…圧縮コイルば
ね。
FIG. 1 is an explanatory view showing a head support mechanism of a floppy disk device, and FIG. 2 is an explanatory view showing an embodiment of the head support mechanism of a floppy disk device according to the present invention. 1, 11...carriage, 2...leaf spring, 4,12
...Head arm, 5, 17... Side 1 side magnetic head, 6, 18... Side 0 side magnetic head, 8, 20
...Floppy disc, 7...Tension spring, 14...
Shaft, 15...Pivot bearing, 19...Compression coil spring.
Claims (1)
フロツピーデイスクの経方向に往復移動自在に設
けられたキヤリツジと、 このキヤリツジの側部上方に左右対をなして形
成された突出部に設けられた一対のピボツト軸受
と、 前記第１の磁気ヘツドに対向するように第２の
磁気ヘツドを一端側下面に有し、かつ前記ピボツ
ト軸受により釣り合い状態で回動自在に支持され
るヘツドアームと、 このヘツドアームの前記一端側を前記第１およ
び第２の磁気ヘツド間に挿入された前記フロツピ
ーデイスクの方向に対し所定の偏寄力を印加する
ように設けられた弾性手段と、を具備したことを
特徴とするフロツピーデイスク装置のヘツド支持
機構。[Scope of Claims] 1. A carriage provided with a first magnetic head on the upper surface of one end side and provided so as to be able to reciprocate in the longitudinal direction of the floppy disk; and a pair of left and right magnetic heads formed above the sides of the carriage. a pair of pivot bearings provided on the protruding portion, and a second magnetic head on the lower surface of one end side so as to face the first magnetic head, and is rotatable in a balanced state by the pivot bearings. a supported head arm; and elastic means provided to apply a predetermined biasing force to the one end of the head arm in the direction of the floppy disk inserted between the first and second magnetic heads. A head support mechanism for a floppy disk device, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1586884A JPS60160063A (en) | 1984-01-31 | 1984-01-31 | Head support mechanism of floppy disk device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1586884A JPS60160063A (en) | 1984-01-31 | 1984-01-31 | Head support mechanism of floppy disk device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60160063A JPS60160063A (en) | 1985-08-21 |
| JPH0152825B2 true JPH0152825B2 (en) | 1989-11-10 |
Family
ID=11900776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1586884A Granted JPS60160063A (en) | 1984-01-31 | 1984-01-31 | Head support mechanism of floppy disk device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60160063A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1271634C (en) | 2001-02-13 | 2006-08-23 | 松下电器产业株式会社 | Working head supporting device and disk device using the working head supporting device |
-
1984
- 1984-01-31 JP JP1586884A patent/JPS60160063A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60160063A (en) | 1985-08-21 |
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