JPH0770182B2 - Head support device - Google Patents
Head support deviceInfo
- Publication number
- JPH0770182B2 JPH0770182B2 JP62045237A JP4523787A JPH0770182B2 JP H0770182 B2 JPH0770182 B2 JP H0770182B2 JP 62045237 A JP62045237 A JP 62045237A JP 4523787 A JP4523787 A JP 4523787A JP H0770182 B2 JPH0770182 B2 JP H0770182B2
- Authority
- JP
- Japan
- Prior art keywords
- load beam
- magnetic head
- load
- head support
- auxiliary flange
- 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 - Fee Related
Links
Landscapes
- Supporting Of Heads In Record-Carrier Devices (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は磁気デイスク等の磁気記録媒体上に磁気ヘツド
を浮動させて情報の記録再生を行う磁気デイスク装置の
磁気ヘツド支持機構に関するものである。Description: TECHNICAL FIELD The present invention relates to a magnetic head supporting mechanism of a magnetic disk device that records and reproduces information by floating a magnetic head on a magnetic recording medium such as a magnetic disk. .
従来の磁気ヘツド支持機構は、例えば、特開昭55−2229
6号に記載されているように、弾性ばね要素と三角形状
の荷重ビームおよび荷重ビームに設けられた２つのフラ
ンジからなり、磁気ヘツドに、磁気記録媒体の回転に伴
なう空気流による浮揚力抗する力を与えている。そし
て、荷重ビームは両側端のフランジで剛性を持たせてい
るが、一般に、この種の磁気ヘツド支持機構において
は、デイスク回路による風乱やヘツドが所定のトラツク
へ移動するための半径方向へ動くシーク動作時に大きな
外力を受け振動する。上記荷重ビーム振動特性は、第13
図に示す如く、面外曲げ外力とねじり外力の共振点が互
いに近くの周波数域にあり、この両者により振動振幅が
大きくなり、磁気ヘツドの安定浮動に悪影響を及ぼして
いた。そして、上記した２つの共振点のうち特に面外曲
げ外力による振動が磁気ヘツドの安定浮動への影響が大
きく問題となつていた。また、上記ヘツドの支持機構の
振動は、磁気ヘツドの磁気記録媒体面に平行な方向の振
動も併発し、磁気ヘツドの同一のトラツクでの安定な記
録再生を損ない問題となつていた。A conventional magnetic head support mechanism is disclosed in, for example, Japanese Patent Laid-Open No. 55-2229.
As described in No. 6, it consists of an elastic spring element, a triangular load beam, and two flanges provided on the load beam, and the magnetic head has a levitation force due to the air flow accompanying the rotation of the magnetic recording medium. It gives the power to resist. The load beam has rigidity at the flanges at both ends, but generally, in this type of magnetic head support mechanism, wind disturbance caused by a disk circuit and the head move in a radial direction to move to a predetermined track. It vibrates due to a large external force during seek operation. The above load beam vibration characteristics are
As shown in the figure, the resonance points of the out-of-plane bending external force and the torsional external force are in the frequency regions close to each other, and the vibration amplitude is increased by both of them, which adversely affects the stable floating of the magnetic head. Among the two resonance points described above, the vibration due to the out-of-plane bending external force has a great influence on the stable floating of the magnetic head, which is a serious problem. Further, the vibration of the head support mechanism also causes the vibration of the magnetic head in a direction parallel to the surface of the magnetic recording medium, which poses a problem of impairing stable recording / reproduction of the magnetic head in the same track.
上記従来技術は、ヘツド支持機構への外力、特に磁気記
録媒体の回転による風乱による外力によるヘツド支持機
構の振動の磁気ヘツドへの影響について配慮がされてお
らず、風乱による外力によつて発生する荷重ビームの面
外曲げ及びねじりの共振点での振動により、磁気ヘツド
の浮上量が変動し、記録再生特性の悪化や、磁気記録媒
体面との接触など信頼性の悪化の問題があつた。また、
上記ヘツド支持機構の振動は、磁気ヘツドの磁気記録媒
体面に平行な方向の振動も併発し、磁気ヘツドの同一ト
ラツクでの安定な記録再生を損ない問題となつていた。The above-mentioned prior art does not consider the influence of the external force on the head support mechanism, particularly the influence of the vibration of the head support mechanism on the magnetic head due to the external force due to the wind disturbance due to the rotation of the magnetic recording medium. Due to the out-of-plane bending of the load beam and the vibration at the resonance point of torsion, the flying height of the magnetic head fluctuates, causing problems such as deterioration of recording / reproducing characteristics and contact with the surface of the magnetic recording medium. It was Also,
The vibration of the head support mechanism also causes the vibration of the magnetic head in a direction parallel to the surface of the magnetic recording medium, which poses a problem of impairing stable recording / reproduction of the magnetic head in the same track.
本発明の目的は、荷重ビームの剛性を高め、記録媒体の
回転に伴う風乱による荷重ビームの振動応答を押さえ、
磁気ヘツドの浮動を安定させるヘツド支持装置を提供す
ることにある。An object of the present invention is to increase the rigidity of the load beam and suppress the vibration response of the load beam due to the wind turbulence accompanying the rotation of the recording medium,
It is an object of the present invention to provide a head supporting device that stabilizes the floating of the magnetic head.
上記の目的は、磁気ヘツド支持装置に荷重ビームの細長
い平坦部にこの荷重ビームの一部を切り起こして形成し
た少なくとも１つの補助フランジを変換ヘツドを通る荷
重ビーム長手方向軸と交わる方向に沿つて設け、荷重ビ
ームの剛性を高めることにより達成される。The purpose is to provide the magnetic head support with at least one auxiliary flange formed by cutting and raising a portion of the load beam in an elongated flat portion of the load beam along a direction that intersects the load beam longitudinal axis through the conversion head. It is achieved by providing and increasing the rigidity of the load beam.
磁気ヘツド支持装置の荷重ビームの細長い平坦部に、荷
重ビーム長手方向軸とほぼ直角方向に沿つて設けた補助
フランジは、荷重ビームの剛性を高める。An auxiliary flange is provided on the elongated flat portion of the load beam of the magnetic head support device along a direction substantially perpendicular to the load beam longitudinal axis to increase the stiffness of the load beam.
さらに、荷重ビームの質量ｍを増加させることなく、剛
性ｋを高めることができるため、ヘッド支持装置の固有
振動数 を高めることができる。このため磁気記録円板の回転に
伴う風乱やシーク時外乱の加振力をが小さくでき、磁気
ヘッドの浮動を安定させることができる。つまり、この
磁気ヘッド支持装置は、磁気記録媒体の回転に伴う空気
流の加振力などに対する荷重ビームの振動振幅を低減で
きるので磁気ヘッドの浮動を安定させ、その結果、記録
再生信号を安定させることができる。Furthermore, since the rigidity k can be increased without increasing the mass m of the load beam, the natural frequency of the head support device can be increased. Can be increased. Therefore, the exciting force of the wind disturbance and the seek disturbance due to the rotation of the magnetic recording disk can be reduced, and the floating of the magnetic head can be stabilized. In other words, this magnetic head supporting device can reduce the vibration amplitude of the load beam with respect to the exciting force of the air flow accompanying the rotation of the magnetic recording medium, so that the floating of the magnetic head is stabilized, and as a result, the recording / reproducing signal is stabilized. be able to.
以下、本発明の一実施例を第１図，第２図により説明す
る。ヘツド支持装置は、磁気ヘツド３に荷重を負荷する
荷重ビーム２と一端がその荷重ビーム２に結合され、磁
気ヘツド３を支持しているジンバル弾性バネ要素１と磁
気ヘツド３への押付荷重を相当する荷重板ばね部９とか
ら構成する。荷重ビーム２は細長い平坦部５とその両側
に設けられたフランジ４及び、平坦部５の磁気ヘツド３
と反対側の荷重ビーム２の根元部に、長手方向と交わる
方向に平坦部の一部を切り起こし、折り曲げて設けた補
助フランジ６とから構成している。An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. The head support device has a load beam 2 for applying a load to the magnetic head 3 and one end of which is coupled to the load beam 2, and the gimbal elastic spring element 1 supporting the magnetic head 3 and the pressing load on the magnetic head 3 are equivalent to each other. And a load leaf spring portion 9 that operates. The load beam 2 includes an elongated flat portion 5, flanges 4 provided on both sides thereof, and a magnetic head 3 of the flat portion 5.
At the root of the load beam 2 on the opposite side, a part of the flat portion is cut and raised in a direction intersecting the longitudinal direction, and the auxiliary flange 6 is provided by bending.
磁気ヘツド３は、荷重ビーム２によつて、ある設定荷重
で磁気記録媒体に押し付けられる。磁気ヘツド３は、磁
気記録媒体の回転に伴う空気流による揚力と荷重ビーム
２との押付荷重がバランスして浮動する。The magnetic head 3 is pressed against the magnetic recording medium by the load beam 2 with a certain set load. The magnetic head 3 floats in balance with the lift force of the air flow accompanying the rotation of the magnetic recording medium and the pressing load of the load beam 2.
本発明の実施例によれば、荷重ビーム２の平坦部５に荷
重ビーム２の長手方向とほぼ直交する方向に補助フラン
ジ要素６を設け、荷重ビーム２のねじれ及び曲げ剛性を
高めることができ、磁気記録円板の回転に伴う空気流な
どによる加振力に対する荷重ビームの振動振幅を小さく
押さえ、磁気ヘツドの浮動を安定させる効果がある。そ
の結果、記録再生信号を安定化できる。According to the embodiment of the present invention, the flat portion 5 of the load beam 2 is provided with the auxiliary flange element 6 in a direction substantially orthogonal to the longitudinal direction of the load beam 2 to increase the torsional and bending rigidity of the load beam 2, This has the effect of suppressing the vibration amplitude of the load beam against the vibration force due to the air flow accompanying the rotation of the magnetic recording disk and stabilizing the floating of the magnetic head. As a result, the recording / reproducing signal can be stabilized.
また本実施例で補助フランジ６を作るためにあけた、補
助フランジ切り起こし穴７は、先の空気流による加振力
を低減させる効果も有する。In addition, the auxiliary flange cut-and-raised hole 7 opened to make the auxiliary flange 6 in the present embodiment also has an effect of reducing the vibration force due to the previous air flow.
第３図，第４図は、本発明の他の実施例を示す。この実
施例においては、補助フランジ要素６を荷重ビーム２の
根元及び中ほどに設けている。3 and 4 show another embodiment of the present invention. In this embodiment, an auxiliary flange element 6 is provided at the root and middle of the load beam 2.
第５図，第６図は、本発明の更に他の実施例を示す。こ
の実施例においては、補助フランジ要素６を溶接によつ
て取付けている。補助フランジ要素６を設けることによ
り、磁気ヘツド３への押付荷重を担当する荷重板ばね部
９と荷重ビーム２の高剛性部分の機能が明確に分離さ
れ、製造ばらつきによる特性の変動を低減することがで
きる。5 and 6 show still another embodiment of the present invention. In this embodiment, the auxiliary flange element 6 is attached by welding. By providing the auxiliary flange element 6, the functions of the load leaf spring portion 9 that is in charge of the pressing load on the magnetic head 3 and the high rigidity portion of the load beam 2 are clearly separated, and fluctuations in characteristics due to manufacturing variations are reduced. You can
第７図，第８図は、本発明の更に他の実施例を示す。こ
の実施例においては、補助フランジ要素６を、荷重板ば
ね部９側より切り起こし、両側のフランジ４の根元部付
近で折り曲げて設けている。本実施例によれば、荷重ビ
ーム２の剛性を高めることができ、荷重板ばね部９との
機能分離がはかれる。また、荷重板ばね部９側より切り
起こすことにより、荷重板バネ部の面外曲げにバネ剛さ
を弱く、面外ねじり，面内曲げの強い、ヘツド支持装置
を得る。7 and 8 show still another embodiment of the present invention. In this embodiment, the auxiliary flange element 6 is provided by cutting and raising it from the side of the load leaf spring 9 and bending it near the roots of the flanges 4 on both sides. According to the present embodiment, the rigidity of the load beam 2 can be increased, and the functional separation from the load leaf spring portion 9 can be achieved. Further, by cutting and raising from the side of the load leaf spring portion 9, a head support device having weak spring stiffness against out-of-plane bending of the load leaf spring portion and strong out-of-plane twisting and in-plane bending is obtained.
第９図，第10図は、本発明の更に他の実施例を示す。こ
の実施例においては、荷重板ばね部９に設けた補助フラ
ンジに切り起こし穴７をスペーサ11側まであけている。
また、荷重ビーム２の中央部に補助フランジ要素６を設
けた例である。9 and 10 show still another embodiment of the present invention. In this embodiment, a cut-and-raised hole 7 is formed in the auxiliary flange provided on the load leaf spring portion 9 up to the spacer 11 side.
Further, it is an example in which the auxiliary flange element 6 is provided in the central portion of the load beam 2.
第11図，第12図は、本発明の更に他の実施例を示す。こ
の実施例においては、荷重板ばね部９に、補助フランジ
切り起こし穴７を設けて作つた補助フランジ要素６に、
荷重ビームの両側のフランジ４を延長して内側に折り曲
げて、補助フランジ要素６とたとえばスポツト溶接によ
り接合している。本実施例によれば、両側のフランジ４
と補助フランジ要素６とが、接合し、荷重ビーム２の剛
性が非常に高まり、荷重ビームの振動振幅を小さく押さ
え、磁気ヘツド３を安定浮動させる効果がある。11 and 12 show still another embodiment of the present invention. In this embodiment, an auxiliary flange element 6 made by providing an auxiliary flange cut-and-raised hole 7 in the load leaf spring portion 9
The flanges 4 on both sides of the load beam are extended and bent inwards and joined to the auxiliary flange element 6 by spot welding, for example. According to this embodiment, the flanges 4 on both sides are
And the auxiliary flange element 6 are joined, the rigidity of the load beam 2 is greatly increased, the vibration amplitude of the load beam is suppressed small, and the magnetic head 3 is stably floated.
本発明によれば、荷重ビームの長手方向とほぼ直交する
方向に沿ってこの荷重ビームの平坦部に補助フランジを
設けたことにより、荷重ビームの剛性を高めることがで
きる。これに加え、更に、補助フランジを荷重ビームの
一部を切り起して形成したことにより、磁気記録円板の
回転に伴う空気流による加振力などに対する荷重ビーム
の振動振幅をより小さくできるので、磁気ヘッドの浮動
を安定させる効果がある。According to the present invention, the rigidity of the load beam can be increased by providing the auxiliary flange on the flat portion of the load beam along the direction substantially orthogonal to the longitudinal direction of the load beam. In addition to this, by further forming the auxiliary flange by cutting and raising a part of the load beam, it is possible to further reduce the vibration amplitude of the load beam with respect to the exciting force due to the air flow accompanying the rotation of the magnetic recording disk. , Has the effect of stabilizing the floating of the magnetic head.
第１図は本発明の一実施例の平面図、第２図は第１図の
Ａ−Ａ線断面図、第３図は本発明の他の実施例の平面
図、第４図は第３図のＢ−Ｂ線断面図、第５図は本発明
の更に他の実施例の平面図、第６図は第５図のＣ−Ｃ線
断面図、第７図は本発明の更に他の実施例の平面図、第
８図は第７図のＤ−Ｄ線断面図、第９図は本発明の更に
他の実施例の平面図、第10図は第９図のＥ−Ｅ線断面
図、第11図は本発明の更に他の実施例の平面図、第12図
は第11図のＦ−Ｆ線断面図、第13図はヘツド支持装置の
振動特性説明図を示す。 １……ジンバル弾性バネ要素、２……荷重ビーム、３…
…磁気ヘツド、４……フランジ、４……荷重ビーム平坦
部、６……補助フランジ要素、７……補助フランジ切り
起こし穴、８……溶接点、９……荷重板バネ部、10……
フランジ延長部、11……スペーサ。1 is a plan view of an embodiment of the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. 1, FIG. 3 is a plan view of another embodiment of the present invention, and FIG. FIG. 5 is a cross-sectional view taken along the line BB of FIG. 5, FIG. 5 is a plan view of yet another embodiment of the present invention, FIG. 6 is a sectional view taken along the line C-C of FIG. 5, and FIG. FIG. 8 is a plan view of an embodiment, FIG. 8 is a sectional view taken along the line DD of FIG. 7, FIG. 9 is a plan view of yet another embodiment of the present invention, and FIG. 10 is a sectional view taken along the line EE of FIG. FIG. 11 is a plan view of still another embodiment of the present invention, FIG. 12 is a sectional view taken along the line FF of FIG. 11, and FIG. 13 is a vibration characteristic explanatory view of the head support device. 1 ... Gimbal elastic spring element, 2 ... Load beam, 3 ...
… Magnetic head, 4 …… Flange, 4… Load beam flat part, 6… Auxiliary flange element, 7… Auxiliary flange cut and raised hole, 8… Welding point, 9… Load leaf spring part, 10…
Flange extension, 11 …… Spacer.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 清水 伊三男 茨城県土浦市神立町502番地 株式会社日 立製作所機械研究所内 (72)発明者 大東 宏 神奈川県小田原市国府津2880番地 株式会 社日立製作所小田原工場内 (56)参考文献 特開 昭59−193582（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Izumio Shimizu 502 Jinritsu-cho, Tsuchiura-shi, Ibaraki Machinery Research Institute, Hiritsu Seisakusho Co., Ltd. In the factory (56) References JP-A-59-193582 (JP, A)
Claims (2)
部を有する三角形状の荷重ビームを固着し、該荷重ビー
ムの先端部に磁気ヘッドを支持するジンバル弾性ばね要
素を取り付けたヘッド支持装置において、前記荷重ビー
ムの平坦部に該荷重ビームの一部を切り起して形成した
少なくとも一つの補助フランジ要素を荷重ビームの長手
方向とほぼ直交する方向に沿って設けた ことを特徴とするヘッド支持機構。1. A head support device comprising a rigid arm member to which a triangular load beam having a flat portion and flange portions at both ends is fixed, and a gimbal elastic spring element for supporting a magnetic head is attached to the tip of the load beam. A head support characterized in that at least one auxiliary flange element formed by cutting and raising a part of the load beam is provided in a flat portion of the load beam along a direction substantially orthogonal to the longitudinal direction of the load beam. mechanism.
を、荷重ビームの根元の荷重板ばね部の一部を切り起し
て形成したことを特徴とする請求項１記載のヘッド支持
機構2. A head support mechanism according to claim 1, wherein at least one of the auxiliary flange elements is formed by cutting and raising a part of the load leaf spring portion at the base of the load beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62045237A JPH0770182B2 (en) | 1987-03-02 | 1987-03-02 | Head support device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62045237A JPH0770182B2 (en) | 1987-03-02 | 1987-03-02 | Head support device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63213179A JPS63213179A (en) | 1988-09-06 |
| JPH0770182B2 true JPH0770182B2 (en) | 1995-07-31 |
Family
ID=12713648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62045237A Expired - Fee Related JPH0770182B2 (en) | 1987-03-02 | 1987-03-02 | Head support device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0770182B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5914835A (en) * | 1996-03-29 | 1999-06-22 | Hutchinson Technology, Inc. | Head suspension with modified spring region for improved load control |
| JP5042340B2 (en) | 2010-06-07 | 2012-10-03 | サンコール株式会社 | Magnetic head suspension |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0823976B2 (en) * | 1983-04-18 | 1996-03-06 | 株式会社東芝 | Magnetic recording / reproducing device |
-
1987
- 1987-03-02 JP JP62045237A patent/JPH0770182B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63213179A (en) | 1988-09-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |