JPH02101391U - - Google Patents
Info
- Publication number
- JPH02101391U JPH02101391U JP797989U JP797989U JPH02101391U JP H02101391 U JPH02101391 U JP H02101391U JP 797989 U JP797989 U JP 797989U JP 797989 U JP797989 U JP 797989U JP H02101391 U JPH02101391 U JP H02101391U
- Authority
- JP
- Japan
- Prior art keywords
- pole piece
- hub
- magnetic
- spindle shaft
- magnetic disk
- 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
- 230000005291 magnetic effect Effects 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 239000011553 magnetic fluid Substances 0.000 claims description 2
- 230000005294 ferromagnetic effect Effects 0.000 claims 1
Landscapes
- Rotational Drive Of Disk (AREA)
Description
第１図ａおよびｂは本考案の一実施例の主要部
を示す断面図およびＡ部詳細断面図、第２図ａお
よびｂは従来の磁気デイスク装置の一例の主要部
を示す断面図およびＢ部詳細断面図である。
１・１１…ハブ、２・１２…ポールピース、３
・１３…ベアリング、４・１４…シヤフト、５・
１５…磁性流体、６…コーテイング。
1A and 1B are a sectional view showing the main part of an embodiment of the present invention and a detailed sectional view of part A; FIGS. 2A and 2B are sectional views showing the main part of an example of a conventional magnetic disk device, and FIGS. It is a detailed sectional view of a part. 1.11...Hub, 2.12...Pole piece, 3
・13...Bearing, 4・14...Shaft, 5・
15...Magnetic fluid, 6...Coating.
Claims (1)
アリングを介して回転自在に保持するスピンドル
シヤフトと、前記ハブの内面に固着された強磁性
体のポールピースと、前記ポールピースと前記ス
ピンドルシヤフトとの間に注入した磁性流体とを
備える磁気デイスク装置において、前記ポールピ
ースがその表面に被着した非磁性体のコーテイン
グを有することを特徴とする磁気デイスク装置。 A hub on which a magnetic disk is mounted, a spindle shaft that rotatably holds the hub via a bearing, a ferromagnetic pole piece fixed to the inner surface of the hub, and between the pole piece and the spindle shaft. 1. A magnetic disk device comprising a magnetic fluid injected into the pole piece, wherein the pole piece has a non-magnetic coating adhered to its surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP797989U JPH02101391U (en) | 1989-01-25 | 1989-01-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP797989U JPH02101391U (en) | 1989-01-25 | 1989-01-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02101391U true JPH02101391U (en) | 1990-08-13 |
Family
ID=31213452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP797989U Pending JPH02101391U (en) | 1989-01-25 | 1989-01-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02101391U (en) |
-
1989
- 1989-01-25 JP JP797989U patent/JPH02101391U/ja active Pending