JPH0350351B2 - - Google Patents
Info
- Publication number
- JPH0350351B2 JPH0350351B2 JP58152544A JP15254483A JPH0350351B2 JP H0350351 B2 JPH0350351 B2 JP H0350351B2 JP 58152544 A JP58152544 A JP 58152544A JP 15254483 A JP15254483 A JP 15254483A JP H0350351 B2 JPH0350351 B2 JP H0350351B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic head
- gimbal
- leaf spring
- magnetic disk
- vibration
- 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 - Lifetime
Links
- 230000007246 mechanism Effects 0.000 claims description 8
- 239000007769 metal material Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 description 13
- 239000002184 metal Substances 0.000 description 13
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 238000001845 vibrational spectrum Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000001228 spectrum 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
Landscapes
- Supporting Of Heads In Record-Carrier Devices (AREA)
Description
【発明の詳細な説明】
本発明は、磁気デイスク装置に使用される磁気
ヘツドの支持機構に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a support mechanism for a magnetic head used in a magnetic disk device.
従来より磁気デイスク装置、特にフロツピーデ
イスク装置の磁気ヘツドの支持機構においては、
二方向に揺動動作が可能なジンバル板バネに磁気
ヘツド固着して取りつけ、可撓性を有する磁気デ
イスクの記録再生面と適切な状態で磁気ヘツドが
接触できるように構成されている。 Conventionally, in the support mechanism of the magnetic head of a magnetic disk device, especially a floppy disk device,
The magnetic head is fixedly attached to a gimbal plate spring that can swing in two directions, so that the magnetic head can come into contact with the recording/reproducing surface of a flexible magnetic disk in an appropriate state.
このような従来の磁気ヘツドの支持機構におい
ては、磁気ヘツドの磁気デイスク面に対する追従
を良くするために所謂ジンバル構造(二方向又は
一方向に揺動動作が可能となつていること)が採
用されている。しかし、上記ジンバル板バネは第
1図に示す如く、3,4なる固有の振動周波数で
振動を生じ、また、磁気デイスク面と磁気ヘツド
の接触摩擦によつても5なる振動周波数で振動が
生じ、この結果磁気デイスク面と磁気ヘツドとの
接触性が損なわれていることがわかつた。更にこ
の現象は、磁気デイスクが3インチ、3.5インチ
等、小型になると、板バネ自身が有する固有の振
動周波数と、磁気デイスク面と磁気ヘツドとの摩
擦によつて生ずる振動周波数とが接近し、共振状
態となつて、更に振動が増大することもわかつ
た。 In such conventional magnetic head support mechanisms, a so-called gimbal structure (capable of rocking motion in two directions or one direction) is adopted in order to improve the tracking of the magnetic head to the magnetic disk surface. ing. However, as shown in Fig. 1, the gimbal leaf spring vibrates at a natural vibration frequency of 3 or 4, and the contact friction between the magnetic disk surface and the magnetic head also causes vibration at a vibration frequency of 5. As a result, it was found that the contact between the magnetic disk surface and the magnetic head was impaired. Furthermore, this phenomenon occurs because when the magnetic disk becomes smaller, such as 3 inches or 3.5 inches, the unique vibration frequency of the leaf spring itself approaches the vibration frequency caused by the friction between the magnetic disk surface and the magnetic head. It was also found that the vibration increases further when the device enters a resonance state.
尚、第1図において、縦軸はジンバル板バネの
振動のパワースペクトラムを示し、横軸は振動周
波数を示す。そして、1は磁気デイスクが1回転
毎に発生するうねりによつて生ずる振動周波数、
2は磁気デイスク自体に起伏があることによりジ
ンバル板バネに与える振動周波数、3,4はジン
バル板バネを磁気デイスク半径方向に二分割して
見た場合のそれぞれの板バネが有する固有の振動
周波数(両者が完全に同一形状であれば、同一の
振動数になるが、実際上は寸法精度等の違いによ
つて同一とはならない)、5は磁気デイスク面と
磁気ヘツドとの接触摩擦によつて生ずる振動周波
数である。 In FIG. 1, the vertical axis shows the power spectrum of the vibration of the gimbal plate spring, and the horizontal axis shows the vibration frequency. 1 is the vibration frequency caused by the undulation that occurs every time the magnetic disk rotates.
2 is the vibration frequency given to the gimbal leaf spring by the undulations of the magnetic disk itself, 3 and 4 are the unique vibration frequencies of each leaf spring when the gimbal leaf spring is divided into two in the magnetic disk radial direction. (If both have the same shape, they will have the same frequency, but in reality they will not be the same due to differences in dimensional accuracy, etc.) 5 is due to the contact friction between the magnetic disk surface and the magnetic head. This is the vibration frequency that occurs when
このような、磁気ヘツドを支持するジンバル板
バネの振動を吸収するためには、ジンバル板バネ
にゴムを取りつけることも考えられている。しか
し、ゴム温度・湿度特性の良質なものがなく、ま
た経時変化も大きいため、振動吸収効果を長時間
にわたつて期待できるものではない。 In order to absorb such vibrations of the gimbal leaf spring that supports the magnetic head, it has been considered to attach rubber to the gimbal leaf spring. However, there is no rubber with good temperature and humidity characteristics, and it also changes significantly over time, so it cannot be expected to provide vibration absorption effects over a long period of time.
本発明は、上記従来技術の欠点に対して、、磁
気ヘツドを支持するジンバル板バネの橋渡し部以
外の位置に弾性の低い金属材を取りつけることに
より、共振をを著しく減少させると共に、磁気デ
イスク面と磁気ヘツドとの接触性を長時間にわた
り良好にすることができるようにしたものであ
る。 The present invention solves the above-mentioned drawbacks of the prior art by attaching a metal material with low elasticity to a position other than the bridging part of the gimbal plate spring that supports the magnetic head, thereby significantly reducing resonance and This makes it possible to maintain good contact between the head and the magnetic head over a long period of time.
以下、図面により本発明の一実施例を説明す
る。第2図において、1は、磁気ヘツド2を固着
したジンバル板バネ3を取り付けたキヤリツジ
で、図示しない駆動機構によつて、磁気デイスク
半径方向、即ち、図においてA−A方向に移動可
能に取り付けられている。このキヤリツジ1に取
りつけられたジンバル板バネ3は、上記キヤリツ
ジ1に固定される外側の基部3aと、磁気ヘツド
2をA−A方向に対して揺動可能となすための橋
渡し部3bと、該橋渡し部3bに接続された枠部
3cと、該枠部3cに接続され、上記磁気ヘツド
2をA−A方向と直交方向に対して揺動可能とな
すための橋渡し部3dと、磁気ヘツド2を取りつ
けた中央部3eとから構成されている。このよう
なジンバル板バネ3に磁気ヘツド2を固着するこ
とにより、磁気ヘツド2はA−A方向に対して、
また、A−A方向と直交方向に対して揺動可能と
なり、磁気デイスク面に対して充分追従すること
ができる。 An embodiment of the present invention will be described below with reference to the drawings. In Fig. 2, reference numeral 1 denotes a carriage to which a gimbal plate spring 3 to which a magnetic head 2 is fixed is attached, and is attached movably in the radial direction of the magnetic disk, that is, in the direction A-A in the figure, by a drive mechanism (not shown). It is being The gimbal plate spring 3 attached to the carriage 1 includes an outer base portion 3a fixed to the carriage 1, a bridging portion 3b for making the magnetic head 2 swingable in the A-A direction, and A frame portion 3c connected to the bridging portion 3b, a bridging portion 3d connected to the frame portion 3c to allow the magnetic head 2 to swing in a direction perpendicular to the A-A direction, and the magnetic head 2. It consists of a central part 3e and a central part 3e. By fixing the magnetic head 2 to such a gimbal plate spring 3, the magnetic head 2 can be moved in the A-A direction.
Further, it is possible to swing in a direction perpendicular to the A-A direction, and can sufficiently follow the magnetic disk surface.
本発明においては、上記の磁気ヘツドの支持機
構において、鉛、はんだ、アルミニウムなど、弾
性の低い金属材からなる金属板4を、ジンバル板
バネ3の基部3a、枠部3c、中央部3eに、磁
気デイスク半径方向に並べて取りつけてある。金
属板4を磁気デイスク半径方向に並べて取りつけ
たのは、磁気デイスクが図のB方向に回転するの
で、この方向での振動を吸収することができるよ
うにしたものである。 In the present invention, in the above magnetic head support mechanism, a metal plate 4 made of a metal material with low elasticity, such as lead, solder, or aluminum, is attached to the base 3a, frame 3c, and center 3e of the gimbal plate spring 3. The magnetic disks are arranged in a radial direction. The reason why the metal plates 4 are arranged and attached in the radial direction of the magnetic disk is that since the magnetic disk rotates in the direction B in the figure, vibrations in this direction can be absorbed.
金属板4のジンバル板バネ3への取りつけは、
第3図に示す如く、接着剤5を介在させて接着固
定してもよいし(a)、ある程度のガタをもたせて金
属板4をカシメ4aにより直接固着してもよいし
(b)、また、(c)に示す如く、金属板4の周囲のみを
接着剤6で接着するようにしてもよい。また金属
板4の代わりにハンダメツキを施してもよい。
尚、第2図における実施例においては、接着剤の
ついた鉛テープを細く切り、これを適当な長さと
してジンバル板バネ3のそれぞれの箇所に接着し
たものである。金属板4の長さ、厚さ、巾は、第
1図に示した振動周波数3,4,5を考慮しなが
ら適宜設定する。また金属板4を取りつける位置
はは第2図に限らず、橋渡し部以外の位置とし、
基部3a、枠部3c、中央部3eの何れかであれ
ばよい。 To attach the metal plate 4 to the gimbal plate spring 3,
As shown in FIG. 3, the metal plate 4 may be fixed with an adhesive 5 (a), or the metal plate 4 may be fixed directly with caulking 4a with some play.
As shown in (b) and (c), only the periphery of the metal plate 4 may be bonded with adhesive 6. Further, instead of the metal plate 4, solder plating may be applied.
In the embodiment shown in FIG. 2, lead tape coated with adhesive is cut into thin pieces, which are made into appropriate lengths and adhered to respective locations on the gimbal leaf spring 3. The length, thickness, and width of the metal plate 4 are appropriately set in consideration of the vibration frequencies 3, 4, and 5 shown in FIG. In addition, the position where the metal plate 4 is attached is not limited to that shown in Fig. 2, but it may be installed at a position other than the bridging part.
Any one of the base portion 3a, frame portion 3c, and center portion 3e may be used.
第2図に示す如く、弾性の低い金属板4をジン
バル板バネ3に取りつけることにより、金属板4
が磁気デイスク面と磁気ヘツドとの接触摩擦によ
つて生ずる振動(5)を吸収してその大きさを押
さえることができ、また、金属板4の重量によつ
てジン)バル板バネ3の固有振動数を3′,4′に
さげることができ、また、第2図において上側半
分の金属板4の量と下側半分の金属板4の量とを
変えることによつて固有振動数(3′,4′)を互
いに離間させ、これらが互いに共振することも押
さえることができる。このようにして得られた特
性を第4図に示す。尚、ジンバル板バネを磁気デ
イスク半径方向に二分割して見た場合のそれぞれ
の板バネが有する固有の振動数が寸法精度等の違
いによつて充分離れたものである場合には、金属
板4の量をわざわざ変えなくてもよい。 As shown in FIG. 2, by attaching the metal plate 4 with low elasticity to the gimbal plate spring 3, the metal plate 4
can absorb the vibration (5) caused by contact friction between the magnetic disk surface and the magnetic head and suppress its magnitude. The frequency can be lowered to 3' and 4', and the natural frequency (3 ′, 4′) can be separated from each other to prevent them from resonating with each other. The characteristics thus obtained are shown in FIG. If the gimbal leaf spring is divided into two parts in the radial direction of the magnetic disk, and the unique frequencies of each leaf spring are sufficiently far apart due to differences in dimensional accuracy, etc., the metal plate There is no need to go out of your way to change the amount in step 4.
以上より明らかな如く、本発明においては、磁
気ヘツドを支持するジンバル板バネの橋渡し部以
外の位置に弾性の低い金属材を取りつけたことに
より、該金属材が振動を吸収するともにジンバル
板バネの振動周波数も変化させることができるか
ら、共振を著しく減少させることができると共
に、磁気デイスク面と磁気ヘツドとの接触性も長
時間にわたり良好にすることが可能となつたもの
である。 As is clear from the above, in the present invention, by attaching a metal material with low elasticity to a position other than the bridging portion of the gimbal leaf spring that supports the magnetic head, the metal material absorbs vibrations and the gimbal leaf spring supports the magnetic head. Since the vibration frequency can also be changed, resonance can be significantly reduced, and it has become possible to maintain good contact between the magnetic disk surface and the magnetic head over a long period of time.
第1図は従来例におけるジンバル板バネの振動
のスペクトラムを示す特性図、第2図は本発明に
おける磁気ヘツドの支持機構を示す平面図、第3
図は金属材のジンバル板バネに対する取りつけ構
造を示す断面図、第4図は本発明におけるジンバ
ル板バネの振動のスペクトラムを示す特性図であ
る。
2……磁気ヘツド、3……ジンバル板バネ、4
……金属板、、5,6……接着剤。
FIG. 1 is a characteristic diagram showing the vibration spectrum of a gimbal leaf spring in a conventional example, FIG. 2 is a plan view showing a magnetic head support mechanism in the present invention, and FIG.
FIG. 4 is a sectional view showing a structure for attaching a metal material to a gimbal leaf spring, and FIG. 4 is a characteristic diagram showing a vibration spectrum of the gimbal leaf spring in the present invention. 2...Magnetic head, 3...Gimbal plate spring, 4
...metal plate, 5,6...adhesive.
Claims (1)
バネに固着することにより上記磁気ヘツドを揺動
可能に支持するようになした磁気ヘツドの支持機
構において、上記ジンバル板バネの橋渡し部以外
の位置に弾性の低い金属材を取りつけ、上記ジン
バル板バネの振動吸収を行なわせるようにしたこ
とを特徴とする磁気ヘツドの支持機構。1. In a magnetic head support mechanism that swingably supports the magnetic head by fixing the magnetic head to a gimbal leaf spring having a bridging part, an elastic member is attached to a position other than the bridging part of the gimbal leaf spring. 1. A support mechanism for a magnetic head, characterized in that a metal material having a low temperature is attached to absorb vibrations of the gimbal leaf spring.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15254483A JPS6045986A (en) | 1983-08-23 | 1983-08-23 | Supporting means of magnetic head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15254483A JPS6045986A (en) | 1983-08-23 | 1983-08-23 | Supporting means of magnetic head |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6045986A JPS6045986A (en) | 1985-03-12 |
JPH0350351B2 true JPH0350351B2 (en) | 1991-08-01 |
Family
ID=15542775
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15254483A Granted JPS6045986A (en) | 1983-08-23 | 1983-08-23 | Supporting means of magnetic head |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6045986A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS621166A (en) * | 1985-06-27 | 1987-01-07 | Mitsubishi Electric Corp | Magnetic converter holding device for double face type flexible magnetic disk device |
JPH0636527Y2 (en) * | 1987-02-24 | 1994-09-21 | ソニー株式会社 | Magnetic head device |
JP2921336B2 (en) * | 1993-05-21 | 1999-07-19 | ティアック株式会社 | Magnetic head support sheet for floppy disk drive |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57141076A (en) * | 1981-02-24 | 1982-09-01 | Alps Electric Co Ltd | Head holding mechanism for magnetic disc device |
JPS57158070A (en) * | 1981-03-18 | 1982-09-29 | Ibm | Head supporting arm |
-
1983
- 1983-08-23 JP JP15254483A patent/JPS6045986A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57141076A (en) * | 1981-02-24 | 1982-09-01 | Alps Electric Co Ltd | Head holding mechanism for magnetic disc device |
JPS57158070A (en) * | 1981-03-18 | 1982-09-29 | Ibm | Head supporting arm |
Also Published As
Publication number | Publication date |
---|---|
JPS6045986A (en) | 1985-03-12 |
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