JPH0366071U - - Google Patents
Info
- Publication number
- JPH0366071U JPH0366071U JP12773789U JP12773789U JPH0366071U JP H0366071 U JPH0366071 U JP H0366071U JP 12773789 U JP12773789 U JP 12773789U JP 12773789 U JP12773789 U JP 12773789U JP H0366071 U JPH0366071 U JP H0366071U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic disk
- permanent magnet
- housing
- fixed
- head actuator
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 2
- 239000000696 magnetic material Substances 0.000 claims 1
- 229910052761 rare earth metal Inorganic materials 0.000 claims 1
- 150000002910 rare earth metals Chemical class 0.000 claims 1
- 229910000859 α-Fe Inorganic materials 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Moving Of Head For Track Selection And Changing (AREA)
Description
第１図は、本考案による磁気デイスク用ヘツド
アクチユエータを示す図で、第１図ａは横断面図
、第１図ｂは第１図ａに於けるＡ−Ａ断面図。第
２図は、従来のこの種の磁気デイスク用ヘツドア
クチユエータを示す図で、第２図ａは横断面図、
第２図ｂは第２図ａのＢ−Ｂ断面図。
１……継鉄、２……永久磁石、３……駆動コイ
ル、４……ハウジング、５……ヘツドアーム、６
……軸受、７１，７２……継鉄、８１，８２……
永久磁石、９……ピボツト軸、１０……検出コイ
ル、１１，１２……ヘツドアーム揺動方向、１４
……板ばね、１５……ねじ。
1 is a diagram showing a head actuator for a magnetic disk according to the present invention, in which FIG. 1a is a cross-sectional view, and FIG. 1b is a cross-sectional view taken along line AA in FIG. 1a. FIG. 2 is a diagram showing a conventional head actuator for a magnetic disk of this type, and FIG. 2a is a cross-sectional view;
FIG. 2b is a sectional view taken along line BB in FIG. 2a. 1... Yoke, 2... Permanent magnet, 3... Drive coil, 4... Housing, 5... Head arm, 6
...Bearing, 71,72...Yoke, 81,82...
Permanent magnet, 9... Pivot axis, 10... Detection coil, 11, 12... Head arm swing direction, 14
... leaf spring, 15 ... screw.
Claims (1)
り駆動され、ピボツト軸を支点に揺動する磁気デ
イスク用ヘツドアクチユエータに於て、該ピボツ
ト軸を中心にピボツト軸を支持する軸受けの内側
に、一方がヘツドアクチユエータに固定され、他
方はハウジングに固定されたリング状の永久磁石
を互いに極性が同極に対向して配置し、ヘツドア
クチユエータに固定した永久磁石につながる軟磁
性材からなる継鉄の先端をハウジング側永久磁石
方向に曲げ、磁気デイスク装置のハウジングに固
定した永久磁石と前記継鉄との間に、永久磁石に
近接してハウジング上に検出コイルを設けた構造
としたことを特徴とする磁気デイスク用ヘツドア
クチユエータ。 ２ 請求項１記載の永久磁石は、希土類磁石、又
はフエライト磁石であることを特徴とする磁気デ
イスク用アクチユエータ。[Claims for Utility Model Registration] 1. In a magnetic disk head actuator that is driven by a voice coil motor of a magnetic disk device and swings around a pivot shaft, the pivot shaft is supported around the pivot shaft. Inside the bearing, ring-shaped permanent magnets, one fixed to the head actuator and the other fixed to the housing, are arranged facing each other with the same polarity, and the permanent magnet fixed to the head actuator The leading end of a yoke made of a soft magnetic material is bent toward the permanent magnet on the housing side, and a detection coil is placed on the housing in close proximity to the permanent magnet between the yoke and the permanent magnet fixed to the housing of the magnetic disk device. A head actuator for a magnetic disk, characterized by having a structure in which: 2. An actuator for a magnetic disk, wherein the permanent magnet according to claim 1 is a rare earth magnet or a ferrite magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12773789U JPH0366071U (en) | 1989-10-31 | 1989-10-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12773789U JPH0366071U (en) | 1989-10-31 | 1989-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0366071U true JPH0366071U (en) | 1991-06-27 |
Family
ID=31675481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12773789U Pending JPH0366071U (en) | 1989-10-31 | 1989-10-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0366071U (en) |
-
1989
- 1989-10-31 JP JP12773789U patent/JPH0366071U/ja active Pending
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