JPH0467245U - - Google Patents
Info
- Publication number
- JPH0467245U JPH0467245U JP10988990U JP10988990U JPH0467245U JP H0467245 U JPH0467245 U JP H0467245U JP 10988990 U JP10988990 U JP 10988990U JP 10988990 U JP10988990 U JP 10988990U JP H0467245 U JPH0467245 U JP H0467245U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic circuit
- positioner
- permanent magnets
- drive coil
- flat permanent
- 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
- 230000004907 flux Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 1
Landscapes
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Moving Of Heads (AREA)
Description
第１図は、本考案のヘツドポジシヨナの磁気回
路を示す側面図。第２図は、本考案のヘツドポジ
シヨナの磁気回路部と駆動コイルの配置を示すシ
ユミレーシヨンの平面図。第３図は、永久磁石を
主に逆極性になるように配置した磁気ヘツドのポ
ジシヨナ磁気回路を示す側面図。第４図は磁気デ
イスクとヘツドポジシヨナとの配置を示す平面図
。第５図ａは、従来のヘツドポジシヨナを示す縦
断面図、第５図ｂは駆動コイル平面図、第５図ｃ
は従来の永久磁石の形状を示す平面図。
１ａ，１ｂ，１ｃ，１ｄ……従来の永久磁石、
２ａ，２ｂ，１７……ヨーク、３ａ……駆動コイ
ル、３ｂ……駆動コイルのボビン、４……ベース
、５……ベアリング、６……スイングアーム、７
……磁気ヘツドアセンブリ、８……回転軸、９，
１８，１９……矢印、１０……ボイスコイルモー
タ、１１ａ，１１ｂ……駆動コイルの端子、１２
……磁束、１２ａ，１２ｂ……漏洩磁束、１３…
…空隙長、１４……磁石配置長、１５ａ，１５ｂ
，１５ｃ，１５ｄ……本考案の永久磁石、１６…
…駆動コイル動作範囲における最大摺動角度、１
３１……角度。
FIG. 1 is a side view showing the magnetic circuit of the head positioner of the present invention. FIG. 2 is a plan view of a simulation showing the arrangement of the magnetic circuit section and drive coil of the head positioner of the present invention. FIG. 3 is a side view showing a positioner magnetic circuit of a magnetic head in which permanent magnets are arranged mainly to have opposite polarities. FIG. 4 is a plan view showing the arrangement of a magnetic disk and a head positioner. Fig. 5a is a vertical sectional view showing a conventional head positioner, Fig. 5b is a plan view of the drive coil, Fig. 5c
is a plan view showing the shape of a conventional permanent magnet. 1a, 1b, 1c, 1d... conventional permanent magnets,
2a, 2b, 17... Yoke, 3a... Drive coil, 3b... Drive coil bobbin, 4... Base, 5... Bearing, 6... Swing arm, 7
... Magnetic head assembly, 8 ... Rotating shaft, 9,
18, 19...Arrow, 10...Voice coil motor, 11a, 11b...Drive coil terminal, 12
...Magnetic flux, 12a, 12b...Leakage magnetic flux, 13...
...Gap length, 14...Magnet arrangement length, 15a, 15b
, 15c, 15d...Permanent magnet of the present invention, 16...
...Maximum sliding angle in drive coil operating range, 1
31...Angle.
Claims (1)
する磁気ヘツドを所定の位置に位置決めするポジ
シヨナ磁気回路に於て、駆動コイルが動作し得る
範囲の空隙を設けて、４個の偏平な永久磁石を互
いに逆極性になるように配置し、前記４個の偏平
な永久磁石の合わせ目の個所を切除する形状とす
ることを特徴としたポジシヨナ磁気回路。 ２ 請求項１記載のポジシヨナ磁気回路に於て、
前記４個の偏平な永久磁石の形状を駆動コイルの
動作軌跡と合致した形状とすることを特徴とした
ポジシヨナ磁気回路。 ３ 請求項１記載のポジシヨナ磁気回路に於て、
駆動コイルのコイル動作角度に従つて、前記４個
の偏平な永久磁石の形状を左右対称形とすること
を特徴とするポジシヨナ磁気回路[Claims for Utility Model Registration] 1. In a positioner magnetic circuit that positions a magnetic head for reading and writing data on a magnetic disk at a predetermined position, a gap is provided in the range where the drive coil can operate, and four A positioner magnetic circuit characterized in that flat permanent magnets are arranged so as to have opposite polarities to each other, and the joints of the four flat permanent magnets are cut out. 2. In the positioner magnetic circuit according to claim 1,
A positioner magnetic circuit characterized in that the shape of the four flat permanent magnets matches the motion locus of the drive coil. 3. In the positioner magnetic circuit according to claim 1,
A positioner magnetic circuit characterized in that the shape of the four flat permanent magnets is symmetrical according to the coil operating angle of the drive coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10988990U JPH0467245U (en) | 1990-10-19 | 1990-10-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10988990U JPH0467245U (en) | 1990-10-19 | 1990-10-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0467245U true JPH0467245U (en) | 1992-06-15 |
Family
ID=31857149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10988990U Pending JPH0467245U (en) | 1990-10-19 | 1990-10-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0467245U (en) |
-
1990
- 1990-10-19 JP JP10988990U patent/JPH0467245U/ja active Pending
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