JPS6157078A - Actuator structure - Google Patents
Actuator structureInfo
- Publication number
- JPS6157078A JPS6157078A JP17861184A JP17861184A JPS6157078A JP S6157078 A JPS6157078 A JP S6157078A JP 17861184 A JP17861184 A JP 17861184A JP 17861184 A JP17861184 A JP 17861184A JP S6157078 A JPS6157078 A JP S6157078A
- Authority
- JP
- Japan
- Prior art keywords
- housing
- magnetic circuit
- roll
- magnetic
- circuit
- 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
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
- Moving Of Heads (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は磁気ディスク装置のアクチュエータを構成する
磁気回路とキャリッジ保持部のハウジングの結合部に、
温度による変形を起させないようにしたアクチュエータ
構造に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention provides a method for connecting a magnetic circuit constituting an actuator of a magnetic disk drive to a housing of a carriage holding part.
The present invention relates to an actuator structure that does not cause deformation due to temperature.
磁気ディスク装置は情報処理システムにおいて、計算機
等の周辺装置として使用され、それは高速回転している
ディスク円板に微小間隙を保って磁気ヘッドを保持し、
デ・イスク円板上の同心円状の多数のトランクに情報を
記録するもので、記録するもので、記録容量を増すため
一般にディスク円板を複数枚積層している。。Magnetic disk drives are used as peripheral devices for computers and other devices in information processing systems, and they hold magnetic heads with a small gap between disks that rotate at high speed.
Information is recorded on a large number of concentric trunks on a disk disk.In order to increase the recording capacity, a plurality of disk disks are generally stacked on top of each other. .
上記磁気ヘッドとディスク円板との間隔は磁気特性上非
常に狭くなっており、ゴミ等が入り磁気ヘッド、ディス
ク円′□板面を傷めないように密閉構造されている。そ
のため内部の温度変化により生ずる・各構造材の内部歪
のため、サーボヘッドによる磁、気ヘッドの目、・標ト
ランクへの位置決めがズレ、オフトランクを招き易い。The distance between the magnetic head and the disk disk is very narrow due to magnetic characteristics, and the structure is sealed to prevent dust from entering and damaging the magnetic head and the disk surface. Therefore, due to the internal distortion of each structural material caused by internal temperature changes, the positioning of the magnetic and magnetic head by the servo head to the target trunk is likely to be misaligned, resulting in off-trunk.
又回転型アームはアームの揺動により磁気ヘッドをディ
スク円板の外周に移動させるため、アーム長が長くなり
アクチュエータの共振周波数が小さくなるので、アクチ
ュエータの共振周波数を高めるようなアクチュエータ構
造が望まれる。In addition, since the rotating arm moves the magnetic head to the outer periphery of the disk disk by swinging the arm, the arm length becomes longer and the resonance frequency of the actuator decreases, so an actuator structure that increases the resonance frequency of the actuator is desired. .
従・来、アクチュエータ（特にスうイングアーＪ１型）
を構成する磁気回路（磁気回路外周の１−りをも含む）
とキャリッジ保持部のハウジングの結合は、第２図に示
すように磁気ヘッド１を有するアーム２を保持したハウ
ジング３側面に磁気回路４側與を密着（接触面Ａ）させ
、押仝え板５をネジ６により固定する方法か、或いは第
３図に示すように磁気ヘッド（図では磁気ヘッドを省略
）を有するアーム２を保持したハウジング７と磁気回路
８を完全に分離して別々にベース９に保持する方法で、
この時の磁気回路の接触面はＢである。Conventional/conventional actuators (especially swinger J1 type)
The magnetic circuit that constitutes the magnetic circuit (including the first wire on the outer circumference of the magnetic circuit)
and the housing of the carriage holding part, as shown in FIG. The housing 7 holding the arm 2 having the magnetic head (the magnetic head is omitted in the figure) and the magnetic circuit 8 can be completely separated from each other by fixing the housing 7 and the magnetic circuit 8 separately on the base 9 as shown in FIG. 3. In a way that holds
The contact surface of the magnetic circuit at this time is B.
なお、１０は磁気回路８をベース９に固定するネジを、
１１は磁気ヘッド１が対向するディスク円板を、１２は
アーム２を回転させる揺動軸を示す。In addition, 10 is a screw that fixes the magnetic circuit 8 to the base 9.
Reference numeral 11 indicates a disk disk facing the magnetic head 1, and reference numeral 12 indicates a swing shaft for rotating the arm 2.
上記従来の磁気回路とハウジングの前者の結合方法にお
いて、ハウジング３がアルミ系で、磁気回路４が鉄系の
材料で線膨張係数が異なり、その差により温度ストレス
が生じハウジング３が変化し、ハウジング３に保持され
たアーム２上の磁気ヘッド１がオフトラックを起す。In the above-mentioned conventional method of connecting the magnetic circuit and the housing, the housing 3 is made of aluminum and the magnetic circuit 4 is made of iron, which have different coefficients of linear expansion.The difference causes temperature stress, which causes the housing 3 to change and The magnetic head 1 on the arm 2 held by the magnetic head 3 causes off-track.
又、後者の結合方法は別々にベース９に保持することに
より剛性を低下させ共振周波数が低くなり、サーボ位置
決め系の発振を起し易くなり、サーボループ上の不安定
性を招いてしまうという問題点がある。In addition, the latter method of coupling has the problem that by holding them separately on the base 9, the rigidity is reduced and the resonance frequency is lowered, making it easier for the servo positioning system to oscillate, resulting in instability in the servo loop. There is.
上記問題点は円板に対向して配置されるルｆ）気ヘッド
を有するアームを揺動軸に固定してなるキャリッジ保持
部のハウジングと前記揺動軸を揺動させる磁気回路との
結合部は一端固定、他端を温度による前記ハウジング／
磁気回路に変形を起させないようにコロを介して接触さ
せてなる本発明のアクチュエータ構造図
（作用〕
即ち、キャリッジ保持部のハウジングと揺動軸を揺動さ
せる磁気回路との結合部を一端固定、他端をコロを介し
隙間を設けて接し固定する方法により温度変化のハウジ
ングの上下方向の変化は摩擦の少ないコロ上を滑るので
、殆どストレスがない。又ハウジングの下端で磁気回路
との固定接触面を持ち、上端はコロの長手方向で磁気回
路と接しているので、剛性があり共振周波数を低くさせ
ない。□
〔実施例〕
以下、本発明の要旨を図面により具・体的に説明する゛
。The above-mentioned problem is caused by the coupling part between the housing of the carriage holder, which is formed by fixing an arm having a magnetic head to a swing shaft, and a magnetic circuit that swings the swing shaft, which is arranged opposite to the disk. One end is fixed and the other end is fixed according to the temperature of the housing/
Structural diagram of the actuator of the present invention in which the magnetic circuit is brought into contact via rollers so as not to cause deformation (function) In other words, the joint portion between the housing of the carriage holding part and the magnetic circuit that swings the swing shaft is fixed at one end. By fixing the other end in contact with a roller with a gap, the housing slides on the rollers with less friction due to temperature changes in the vertical direction, so there is almost no stress.Also, the lower end of the housing is fixed to the magnetic circuit. Since it has a contact surface and the upper end is in contact with the magnetic circuit in the longitudinal direction of the roller, it is rigid and does not lower the resonance frequency. □ [Example] The gist of the present invention will be explained in detail below with reference to the drawings.゛.
第１図は本発明の一実施例を説明する斜視図である。な
お、全図を通し同一符合は同一対象物を示す。FIG. 1 is a perspective view illustrating an embodiment of the present invention. Note that the same reference numerals throughout the figures indicate the same objects.
図において、円板１１に対向して配置される磁気ヘッド
１を有す゛るアーム２を揺動軸１２に固定しているキャ
リッジ保持部のハウジング１３と揺動軸１２を揺動させ
る磁気回路１４との接合部は一端（下側接触部Ｃ）を固
定し、他端（上部）はコロ１５を介し両者を接し隙間を
形成するように押え板１６とネジ１７で固定する。In the figure, a housing 13 of a carriage holder fixes an arm 2 having a magnetic head 1 disposed facing a disk 11 to a swing shaft 12, and a magnetic circuit 14 swings the swing shaft 12. One end (lower contact portion C) of the joint portion is fixed, and the other end (upper portion) is fixed with a presser plate 16 and screws 17 so as to contact the two through rollers 15 and form a gap.
ハウジング１３と磁気回路１４の接合部を上記のように
一端固定、他端をコロ１５を介して接触させることによ
りハウジング１３と磁気回路１４の材料の線膨張係数の
違いによ名ハウジング１３の上下方向の変化はコロ１５
上を滑って行われるので、摩擦が少なくハウジング１３
に温度ストレスを生じない。By fixing one end of the joint between the housing 13 and the magnetic circuit 14 as described above and bringing the other end into contact via the rollers 15, the upper and lower parts of the housing 13 can be adjusted due to the difference in linear expansion coefficient of the materials of the housing 13 and the magnetic circuit 14. Change of direction is koro 15
Since it is carried out by sliding on the top of the housing 13, there is less friction.
does not cause temperature stress.
又、ハウジング１３の下端では磁気回路１４との固定接
触面を持ち、上端ではコ帽５の長手方向で磁気
パ′回路１４と接し一体するので剛性があり、
共振周波数が低くなることはない。Further, the lower end of the housing 13 has a fixed contact surface with the magnetic circuit 14, and the upper end has a magnetic circuit in the longitudinal direction of the cap 5.
It is rigid because it is in contact with the power circuit 14 and is integrated with it.
The resonant frequency never becomes lower.
従って、ハウジング１３と磁気回路１４との線膨張係数
の差によるハウジング１３と磁気回路１４の変形により
両者の接合部での温度ストレスを起さないような構造が
得られる。Therefore, a structure is obtained in which deformation of the housing 13 and the magnetic circuit 14 due to the difference in linear expansion coefficients between the housing 13 and the magnetic circuit 14 does not cause temperature stress at the joint between the two.
以上説明したように本発明によれば、キャリッジ保持部
のハウジングと磁気回路の結合部を一端固定、他端はコ
ロを介して接触させることにより温度ストレスによる変
形を起さないような構造が得られる効果は大きい。As explained above, according to the present invention, by fixing the coupling portion between the housing of the carriage holding portion and the magnetic circuit at one end and bringing the other end into contact via rollers, a structure that does not cause deformation due to temperature stress can be obtained. The effect is great.
第１図は本発明の一実施例を説明する斜視図、第２図、
第３図は従来のアクチュエータ構造図、図において、
■は磁気ヘッド、
２はアーＪ４．
１２は揺動軸、
１３はハウジング、
１４は磁気回路、
１５はコロ、
１６は押え板、
１７はネジをそれぞれ示す。
第１ 図FIG. 1 is a perspective view illustrating an embodiment of the present invention, FIG.
Fig. 3 is a structural diagram of a conventional actuator. 12 is a swing shaft, 13 is a housing, 14 is a magnetic circuit, 15 is a roller, 16 is a holding plate, and 17 is a screw. Figure 1
Claims (1)
揺動軸に固定してなるキャリッジ保持部のハウジングと
前記揺動軸を揺動させる磁気回路との結合部は一端固定
、他端を温度による前記ハウジング／磁気回路に変形を
起させないようにコロを介して接触させてなることを特
徴とするアクチュエータ構造。The housing of the carriage holding part, which is formed by fixing an arm having a magnetic head disposed opposite to a disk to a swing shaft, and the magnetic circuit that swings the swing shaft are connected at one end to a fixed end and at the other end. An actuator structure characterized in that the housing/magnetic circuit is brought into contact via rollers so as not to be deformed due to temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17861184A JPS6157078A (en) | 1984-08-28 | 1984-08-28 | Actuator structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17861184A JPS6157078A (en) | 1984-08-28 | 1984-08-28 | Actuator structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6157078A true JPS6157078A (en) | 1986-03-22 |
| JPH036592B2 JPH036592B2 (en) | 1991-01-30 |
Family
ID=16051473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17861184A Granted JPS6157078A (en) | 1984-08-28 | 1984-08-28 | Actuator structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6157078A (en) |
-
1984
- 1984-08-28 JP JP17861184A patent/JPS6157078A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH036592B2 (en) | 1991-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6560075B2 (en) | Disk drive with multiple actuators and reduced actuator interactions | |
| US4797763A (en) | Compact magnetic head flexible suspension | |
| US5428489A (en) | Magnet head support device for use in magnetic disk drive equipped with floating head slider | |
| JPS63197016A (en) | Magnetic head assembly body | |
| US5014142A (en) | Magnetic disk apparatus with head supporting structures of different proper oscillations | |
| CA1147854A (en) | Suspension for air bearing head arm assembly | |
| US5659448A (en) | Magnetic head supporting mechanism including a slider fixed to a slider spacer by a fixing area smaller than a contact area | |
| US4506307A (en) | Magnetic head slider and actuator assembly | |
| JPS6157078A (en) | Actuator structure | |
| JPH05166340A (en) | Magnetic head arm assembly | |
| JPH045106Y2 (en) | ||
| JP2953473B2 (en) | Magnetic disk device, disk used in the device, and method of assembling the disk | |
| JPS62132272A (en) | Actuator structure | |
| JPH03272062A (en) | Magnetic disk device | |
| JPH04109856A (en) | Head access motor | |
| JPH02287982A (en) | Magnetic disk device | |
| JP2811942B2 (en) | Head support device | |
| JPS6011385B2 (en) | Actuator for magnetic head drive | |
| JPS60117457A (en) | Magnetic disc device of swing arm system | |
| JPH073513Y2 (en) | Magnetic head | |
| JPH05274822A (en) | Rotational oscillation type actuator and recording and reproducing device using this actuator | |
| JPS60224154A (en) | Magnetic disk device | |
| JPH01211282A (en) | Magnetic disk device | |
| JPS6260751B2 (en) | ||
| JPH0474357A (en) | Magnetic disk device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |