JPH0164981U - - Google Patents
Info
- Publication number
- JPH0164981U JPH0164981U JP1987158333U JP15833387U JPH0164981U JP H0164981 U JPH0164981 U JP H0164981U JP 1987158333 U JP1987158333 U JP 1987158333U JP 15833387 U JP15833387 U JP 15833387U JP H0164981 U JPH0164981 U JP H0164981U
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnet
- actuator
- magnetic disk
- magnet
- magnetic
- 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
- 238000001514 detection method Methods 0.000 claims description 2
- 229910052761 rare earth metal Inorganic materials 0.000 claims 1
- 150000002910 rare earth metals Chemical group 0.000 claims 1
- 229910000859 α-Fe Inorganic materials 0.000 claims 1
Landscapes
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Description
第１図は本考案の実施例を示す要部縦断面図、
第２図は第１図におけるＢ―Ｂ線断面図、第３図
は従来のものを示す一部破砕一部断面平面図、第
４図は第３図におけるＡ矢視図である。
１：ヨーク、２，１１：永久磁石、５：アーム
、６：可動コイル、１２：検出コイル。
FIG. 1 is a vertical sectional view of the main part showing an embodiment of the present invention,
2 is a sectional view taken along the line B--B in FIG. 1, FIG. 3 is a partially fragmented, partially sectional plan view showing the conventional one, and FIG. 4 is a view taken in the direction of arrow A in FIG. 3. 1: Yoke, 2, 11: Permanent magnet, 5: Arm, 6: Moving coil, 12: Detection coil.
Claims (1)
を固着し、永久磁石面を対向させて形成した磁気
回路を設けてなるハウジングと、一端に可動コイ
ルを他端に磁気ヘツドを各々固着して揺動自在に
形成したアームとからなり、前記磁気回路の空隙
部に可動コイルを配設して構成した磁気デイスク
用アクチユエータにおいて、前記アームを回動自
在に軸支する軸受の近傍に、横断面輪郭を円弧状
に形成してなる他の永久磁石と検出コイルとを対
向かつ相対移動自在に設けたことを特徴とする磁
気デイスク用アクチユエータ。 (2) 永久磁石が希土類磁石であり、他の永久磁
石がフエライト磁石である実用新案登録請求の範
囲第１項記載の磁気デイスク用アクチユエータ。[Scope of Claim for Utility Model Registration] (1) A housing comprising a magnetic circuit formed by fixing a yoke to one side of permanent magnets with different polarities and facing the permanent magnet surfaces, and a moving coil at one end. A magnetic disk actuator is composed of arms each having a magnetic head fixedly attached to the end thereof so as to be swingable, and a movable coil is disposed in the gap of the magnetic circuit. An actuator for a magnetic disk, characterized in that, in the vicinity of a supporting bearing, another permanent magnet having an arcuate cross-sectional profile and a detection coil are provided facing each other and movable relative to each other. (2) The actuator for a magnetic disk according to claim 1, wherein the permanent magnet is a rare earth magnet and the other permanent magnet is a ferrite magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987158333U JP2520371Y2 (en) | 1987-10-16 | 1987-10-16 | Actuator for magnetic disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987158333U JP2520371Y2 (en) | 1987-10-16 | 1987-10-16 | Actuator for magnetic disk |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0164981U true JPH0164981U (en) | 1989-04-26 |
| JP2520371Y2 JP2520371Y2 (en) | 1996-12-18 |
Family
ID=31438564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987158333U Expired - Lifetime JP2520371Y2 (en) | 1987-10-16 | 1987-10-16 | Actuator for magnetic disk |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2520371Y2 (en) |
-
1987
- 1987-10-16 JP JP1987158333U patent/JP2520371Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2520371Y2 (en) | 1996-12-18 |
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