JPH0445353U - - Google Patents
Info
- Publication number
- JPH0445353U JPH0445353U JP8644890U JP8644890U JPH0445353U JP H0445353 U JPH0445353 U JP H0445353U JP 8644890 U JP8644890 U JP 8644890U JP 8644890 U JP8644890 U JP 8644890U JP H0445353 U JPH0445353 U JP H0445353U
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnet
- excitation coil
- magnetic
- arm
- 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
- 230000005284 excitation Effects 0.000 claims description 11
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Supporting Of Heads In Record-Carrier Devices (AREA)
Description
第１図は本考案の実施例を示す磁気デイスク装
置用アクチユエータの平面図、第２図は励磁コイ
ルを駆動するための磁気回路図、第３図は励磁コ
イルを作動させた時の状態図、第３図Ａは励磁コ
イルを作動させた時の平面図、第３図Ｂは励磁コ
イルを作動させた時の断面図、第４図は励磁コイ
ルを作動させない時の状態図、第４図Ａは励磁コ
イルを作動させない時の平面図、第４図Ｂは励磁
コイルを作動させない時の断面図、第５図は従来
のキヤリツジロツク機構の概要図である。
１……磁気デイスク、２……スピンドルモータ
、３……磁気ヘツド、４……ベースフレーム、５
……アーム、６……回転軸、７……励磁コイル、
２０……可動永久磁石、２１……永久磁石、２２
，２３……ヨーク。
FIG. 1 is a plan view of an actuator for a magnetic disk device showing an embodiment of the present invention, FIG. 2 is a magnetic circuit diagram for driving an excitation coil, and FIG. 3 is a state diagram when the excitation coil is activated. Figure 3A is a plan view when the excitation coil is activated, Figure 3B is a sectional view when the excitation coil is activated, Figure 4 is a state diagram when the excitation coil is not activated, and Figure 4A. 4B is a plan view when the excitation coil is not activated, FIG. 4B is a sectional view when the excitation coil is not activated, and FIG. 5 is a schematic diagram of a conventional carriage lock mechanism. 1...Magnetic disk, 2...Spindle motor, 3...Magnetic head, 4...Base frame, 5
... Arm, 6 ... Rotating shaft, 7 ... Excitation coil,
20...Movable permanent magnet, 21...Permanent magnet, 22
,23...York.
Claims (1)
と、 (b) 上記アームの他端に取り付けられ、上記ア
ームの移動に伴い移動する励磁コイルと、 (c) 該励磁コイルに対向して配設される磁界発
生用の永久磁石と、 (d) 該永久磁石と上記励磁コイルを挟んで対向
して配設され、かつ磁気回路を形成するヨークと
、 (e) 上記アーム上に取り付けられた可動永久磁
石とを有し、 (f) 該可動永久磁石の取付位置は、上記永久磁
石との間の反力及び吸引力によつて、常時磁気ヘ
ツドを磁気デイスク上の接触停止領域に付勢する
位置としたことを特徴とする磁気デイスク装置用
アクチユエータ。[Claims for Utility Model Registration] (a) An arm having a magnetic head attached to its tip; (b) An excitation coil attached to the other end of the arm and moving as the arm moves; (c) a permanent magnet for generating a magnetic field that is disposed to face the excitation coil; (d) a yoke that is disposed to face the permanent magnet with the excitation coil in between and forms a magnetic circuit; (e) (f) The mounting position of the movable permanent magnet is such that the magnetic head is always placed above the magnetic disk by the reaction force and attractive force between it and the permanent magnet. An actuator for a magnetic disk device, characterized in that the actuator is in a position where it is biased to a contact stop area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8644890U JPH0445353U (en) | 1990-08-20 | 1990-08-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8644890U JPH0445353U (en) | 1990-08-20 | 1990-08-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0445353U true JPH0445353U (en) | 1992-04-17 |
Family
ID=31818117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8644890U Pending JPH0445353U (en) | 1990-08-20 | 1990-08-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0445353U (en) |
-
1990
- 1990-08-20 JP JP8644890U patent/JPH0445353U/ja active Pending
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