JPH01150476U - - Google Patents
Info
- Publication number
- JPH01150476U JPH01150476U JP4623788U JP4623788U JPH01150476U JP H01150476 U JPH01150476 U JP H01150476U JP 4623788 U JP4623788 U JP 4623788U JP 4623788 U JP4623788 U JP 4623788U JP H01150476 U JPH01150476 U JP H01150476U
- Authority
- JP
- Japan
- Prior art keywords
- step motor
- magnetic
- magnetic head
- casing
- ferrite
- 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
- 229910000859 α-Fe Inorganic materials 0.000 claims description 4
- 229910001035 Soft ferrite Inorganic materials 0.000 claims 1
Landscapes
- Motor Or Generator Frames (AREA)
Description
第１図及び第２図は、本考案によるステツプモ
ータを示すためのもので、第１図は磁気デイスク
装置に取付けた状態を示す平面図、第２図は第１
図における正面からみた要部の正面図、第３図及
び第４図は、従来のステツプモータを示すための
もので、第３図は磁気デイスク装置に取付けた状
態を示す平面図、第４図は第３図における正面か
らみた要部の正面図である。
１はデイスク保持部材、２は磁気デイスク、６
はステツプモータ、６Ａは上面部、８はステータ
、９は後蓋、１０はケーシング、１５はフエライ
トマグネツト板である。
1 and 2 are for showing the step motor according to the present invention. FIG. 1 is a plan view showing the step motor installed in a magnetic disk device, and FIG.
The front view of the main parts seen from the front, FIGS. 3 and 4 are for showing a conventional step motor, and FIG. 3 is a plan view showing the step motor installed in a magnetic disk device, and FIG. 3 is a front view of the main parts seen from the front in FIG. 3. FIG. 1 is a disk holding member, 2 is a magnetic disk, 6
1 is a step motor, 6A is an upper surface, 8 is a stator, 9 is a rear cover, 10 is a casing, and 15 is a ferrite magnet plate.
Claims (1)
ヘツド４Ａを保持するデイスク保持部材１に取付
けられるステツプモータ６において、前記ステツ
プモータ６の前蓋７、ステータ８及び後蓋９によ
つて形成されるケーシング１０と、前記ケーシン
グ１０内に回転自在に設けられロータを有する回
転軸と、前記ケーシング１０における前記磁気ヘ
ツド６に最も近い上面部６Ａに設けられたフエラ
イトマグネツト板１５とを備え、前記ステツプモ
ータ６内で発生する磁気的及び電気的ノイズは、
前記フエライトマグネツト板１５にて吸収され、
前記磁気ヘツド６には及ばないように構成したこ
とを特徴とするステツプモータ。 (2) 前記フエライトマグネツト板１５は、厚さ
が約０．３〜０．４mmで、前記磁気ヘツド６の材
質と同じソフトフエライトよりなることを特徴と
する請求項第１項記載のステツプモータ。[Claims for Utility Model Registration] (1) In the step motor 6 attached to the disk holding member 1 that holds the magnetic head 4A provided corresponding to the magnetic disk 2, the front cover 7 and the stator 8 of the step motor 6 are and a casing 10 formed by the rear lid 9, a rotating shaft rotatably provided within the casing 10 and having a rotor, and a ferrite provided on the upper surface portion 6A of the casing 10 closest to the magnetic head 6. The step motor 6 is equipped with a magnetic plate 15, and the magnetic and electrical noise generated within the step motor 6 is
Absorbed by the ferrite magnet plate 15,
A step motor characterized in that it is constructed so that it does not reach the magnetic head 6. (2) The step motor according to claim 1, wherein the ferrite magnet plate 15 has a thickness of about 0.3 to 0.4 mm and is made of the same soft ferrite as the material of the magnetic head 6. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4623788U JPH01150476U (en) | 1988-04-07 | 1988-04-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4623788U JPH01150476U (en) | 1988-04-07 | 1988-04-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01150476U true JPH01150476U (en) | 1989-10-18 |
Family
ID=31272512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4623788U Pending JPH01150476U (en) | 1988-04-07 | 1988-04-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01150476U (en) |
-
1988
- 1988-04-07 JP JP4623788U patent/JPH01150476U/ja active Pending
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