JPS52152213A - Protection device of magnetic disk - Google Patents

Protection device of magnetic disk

Info

Publication number
JPS52152213A
JPS52152213A JP6918776A JP6918776A JPS52152213A JP S52152213 A JPS52152213 A JP S52152213A JP 6918776 A JP6918776 A JP 6918776A JP 6918776 A JP6918776 A JP 6918776A JP S52152213 A JPS52152213 A JP S52152213A
Authority
JP
Japan
Prior art keywords
magnetic disk
protection device
disk
head
magnetic
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.)
Granted
Application number
JP6918776A
Other languages
Japanese (ja)
Other versions
JPS5853429B2 (en
Inventor
Koji Kameyama
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to JP6918776A priority Critical patent/JPS5853429B2/en
Publication of JPS52152213A publication Critical patent/JPS52152213A/en
Publication of JPS5853429B2 publication Critical patent/JPS5853429B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof

Abstract

PURPOSE:To prevent the touch of a head to a disk by cutting power supply headloading-solenoid by means of detecting loss in the rotation speed of a magnetic disk, thus lifting up the magnetic head.
JP6918776A 1976-06-11 1976-06-11 Magnetic disk protector Expired JPS5853429B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6918776A JPS5853429B2 (en) 1976-06-11 1976-06-11 Magnetic disk protector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6918776A JPS5853429B2 (en) 1976-06-11 1976-06-11 Magnetic disk protector

Publications (2)

Publication Number Publication Date
JPS52152213A true JPS52152213A (en) 1977-12-17
JPS5853429B2 JPS5853429B2 (en) 1983-11-29

Family

ID=13395461

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6918776A Expired JPS5853429B2 (en) 1976-06-11 1976-06-11 Magnetic disk protector

Country Status (1)

Country Link
JP (1) JPS5853429B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61140008A (en) * 1984-12-11 1986-06-27 オムロン株式会社 Illumination push button switch

Also Published As

Publication number Publication date
JPS5853429B2 (en) 1983-11-29

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