JPS60150659U - magnetic disk device - Google Patents

magnetic disk device

Info

Publication number
JPS60150659U
JPS60150659U JP3800284U JP3800284U JPS60150659U JP S60150659 U JPS60150659 U JP S60150659U JP 3800284 U JP3800284 U JP 3800284U JP 3800284 U JP3800284 U JP 3800284U JP S60150659 U JPS60150659 U JP S60150659U
Authority
JP
Japan
Prior art keywords
magnetic disk
disk device
spindle
motor
magnetic disks
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
Application number
JP3800284U
Other languages
Japanese (ja)
Inventor
恵 外薗
仙田　朋久
Original Assignee
株式会社日立製作所
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 株式会社日立製作所 filed Critical 株式会社日立製作所
Priority to JP3800284U priority Critical patent/JPS60150659U/en
Publication of JPS60150659U publication Critical patent/JPS60150659U/en
Pending legal-status Critical Current

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  • Rotational Drive Of Disk (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図はＤＣモータのトルク対速度特性図、第２図は従
来のスピンドルモータの構造図、第３図本考案の一実施
例によるスピンドルモータの構造図、第４図は同じくモ
ータ制御ブロック図である。 １・・・モータ１．２・・・モータ２．３・・・モータ
１の位置検出回路、４・・・モータ２の位置検出回路、
５・・・異常検出回路、６・・・駆動回路部、７・・・
切替スイッチ部、８・・・切替指示部。Fig. 1 is a torque vs. speed characteristic diagram of a DC motor, Fig. 2 is a structural diagram of a conventional spindle motor, Fig. 3 is a structural diagram of a spindle motor according to an embodiment of the present invention, and Fig. 4 is a motor control block diagram as well. It is. 1...Motor 1.2...Motor 2.3...Motor 1 position detection circuit, 4...Motor 2 position detection circuit,
5... Abnormality detection circuit, 6... Drive circuit section, 7...
Changeover switch section, 8...Switching instruction section.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 複数の磁気ディスクと、該磁気ディスクが塔載され固定
されるスピンドルとスピンドルを回転させるスピンドル
モータからなるスピンドルモータ機構において、上記ス
ピンドルモータを２個設けたことを特徴とする磁気ディ
スク装置。　　。A magnetic disk drive comprising a plurality of magnetic disks, a spindle on which the magnetic disks are mounted and fixed, and a spindle motor for rotating the spindle, comprising two spindle motors. .
JP3800284U 1984-03-19 1984-03-19 magnetic disk device Pending JPS60150659U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3800284U JPS60150659U (en) 1984-03-19 1984-03-19 magnetic disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3800284U JPS60150659U (en) 1984-03-19 1984-03-19 magnetic disk device

Publications (1)

Publication Number Publication Date
JPS60150659U true JPS60150659U (en) 1985-10-07

Family

ID=30544601

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3800284U Pending JPS60150659U (en) 1984-03-19 1984-03-19 magnetic disk device

Country Status (1)

Country Link
JP (1) JPS60150659U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63255869A (en) * 1987-04-13 1988-10-24 Matsushita Electric Ind Co Ltd Motor for reproducing recording disk

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63255869A (en) * 1987-04-13 1988-10-24 Matsushita Electric Ind Co Ltd Motor for reproducing recording disk

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