JPS57205866A - Magnetic recording and reproducing device - Google Patents

Magnetic recording and reproducing device

Info

Publication number
JPS57205866A
JPS57205866A JP9004381A JP9004381A JPS57205866A JP S57205866 A JPS57205866 A JP S57205866A JP 9004381 A JP9004381 A JP 9004381A JP 9004381 A JP9004381 A JP 9004381A JP S57205866 A JPS57205866 A JP S57205866A
Authority
JP
Japan
Prior art keywords
disc
head
arm
trace
spiral
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
JP9004381A
Other languages
Japanese (ja)
Inventor
Masaru Kamei
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.)
Tokyo Sanyo Electric Co Ltd
Toshiba TEC Corp
Original Assignee
Tokyo Sanyo Electric Co Ltd
Tokyo Electric Co 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 Tokyo Sanyo Electric Co Ltd, Tokyo Electric Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP9004381A priority Critical patent/JPS57205866A/en
Publication of JPS57205866A publication Critical patent/JPS57205866A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks

Abstract

PURPOSE:To drive a magnetic head with a simple structure, by providing spiral grooves and spiral projecting stripes, where directions of turn are opposite to each other, on both faces of one driving disc supported axially in parallel with a magnetic disc to guide reciprocation of a trace arm. CONSTITUTION:A driving disc 6 is supported axially on a rotation shaft 2 in parallel with a magnetic disc 5. Spiral grooves 9 for advance are provided on the lower face of the disc 6, and a pedestal part 8 is formed in the center of the disc 6. Spiral projecting stripes 10 are provided in a direction of turn opposite to that of spiral grooves 9 on the upper face of the disc 6. A trace stylus 19 is provided at the tip of a trace arm 20, and a head 17 and an engaging piece 24 are provided on and under the tip of a head arm 18 respectively. The disc 5 is held between a pad 15 at the tip of a pad arm 16 and the head 17. The trace stylus 19 guides the head 17 toward the center by the rotation of the disc 6; and when the head 17 runs onto the pedestal part 8, the engaging piece 24 is engaged with spiral projecting stripes 10 to evacuate the head 17 quickly. Thus, a simple structure where the driving source for the head is unnecessary is constituted.
JP9004381A 1981-06-11 1981-06-11 Magnetic recording and reproducing device Pending JPS57205866A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9004381A JPS57205866A (en) 1981-06-11 1981-06-11 Magnetic recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9004381A JPS57205866A (en) 1981-06-11 1981-06-11 Magnetic recording and reproducing device

Publications (1)

Publication Number Publication Date
JPS57205866A true JPS57205866A (en) 1982-12-17

Family

ID=13987607

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9004381A Pending JPS57205866A (en) 1981-06-11 1981-06-11 Magnetic recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS57205866A (en)

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