JPS6442063A - Magnetic disk driver - Google Patents

Magnetic disk driver

Info

Publication number
JPS6442063A
JPS6442063A JP19638887A JP19638887A JPS6442063A JP S6442063 A JPS6442063 A JP S6442063A JP 19638887 A JP19638887 A JP 19638887A JP 19638887 A JP19638887 A JP 19638887A JP S6442063 A JPS6442063 A JP S6442063A
Authority
JP
Japan
Prior art keywords
magnetic disk
spindle motor
adhesion phenomenon
motor
noise
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
JP19638887A
Other languages
Japanese (ja)
Inventor
Kazuyoshi Hanada
Asao Sasamoto
Chikayuki Sogabe
Akio Takatsuka
Haruhiko Hosokawa
Toshio Shiono
Nobuyoshi Ushijima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP19638887A priority Critical patent/JPS6442063A/en
Publication of JPS6442063A publication Critical patent/JPS6442063A/en
Pending legal-status Critical Current

Links

Landscapes

  • Rotational Drive Of Disk (AREA)

Abstract

PURPOSE:To miniaturize a spindle motor, and to reduce its heat generation and noise by eliminating the adhesion phenomenon between a magnetic head and a magnetic disk by means of an auxiliary starter. CONSTITUTION:In case the spindle motor 11 does not start because of the adhesion phenomenon, the motor 11 is rotated to eliminate the adhesion phenomenon between the magnetic disk 1 and the magnetic head 2, for which the auxiliary starter 21 is provided. That is, if the rotary shaft 14 of the spindle motor 11 does not rotate within a determined time after energizing, a motor 22 is driven by a timer after the lapse of a determined time, and one side circular arc part 23c is frictionally brought into contact with the frictional contact plate 25 of a hub 18 to make the plate 25 rotate in the same direction of the rotation direction of the magnetic disk 1 forcively, and thereby the adhesion phenomenon between the head 2 and the disk 1 is eliminated. Therefore, the spindle motor can be miniaturized, accordingly, its heat generation and noise can be reduced.
JP19638887A 1987-08-07 1987-08-07 Magnetic disk driver Pending JPS6442063A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19638887A JPS6442063A (en) 1987-08-07 1987-08-07 Magnetic disk driver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19638887A JPS6442063A (en) 1987-08-07 1987-08-07 Magnetic disk driver

Publications (1)

Publication Number Publication Date
JPS6442063A true JPS6442063A (en) 1989-02-14

Family

ID=16357042

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19638887A Pending JPS6442063A (en) 1987-08-07 1987-08-07 Magnetic disk driver

Country Status (1)

Country Link
JP (1) JPS6442063A (en)

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