JPS5718002A - Production of tone arm - Google Patents

Production of tone arm

Info

Publication number
JPS5718002A
JPS5718002A JP9365080A JP9365080A JPS5718002A JP S5718002 A JPS5718002 A JP S5718002A JP 9365080 A JP9365080 A JP 9365080A JP 9365080 A JP9365080 A JP 9365080A JP S5718002 A JPS5718002 A JP S5718002A
Authority
JP
Japan
Prior art keywords
pipe
carbon fiber
foil
tone arm
aluminum alloy
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
JP9365080A
Other languages
Japanese (ja)
Inventor
Shunsuke Matsuda
Yasumasa Komatsu
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP9365080A priority Critical patent/JPS5718002A/en
Publication of JPS5718002A publication Critical patent/JPS5718002A/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
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/02—Arrangements of heads
    • G11B3/10—Arranging, supporting, or driving of heads or of transducers relatively to record carriers
    • G11B3/30—Supporting in an inoperative position
    • G11B3/31—Construction of arms

Abstract

PURPOSE:To increase the rigidity and to decrease the internal loss of a tone arm, by stacking the prepreg of carbon fiber on an aluminom foil or an aluminum alloy foil into a pipe form. CONSTITUTION:The lamination of carbon fiber prepreg 1 and an aluminum foil or aluminum alloy foil 2 are wound around the outer circumference of a steel core material 3 of a pipe form and then heated up. Thus the material 3 is expanded by heat and a roll-up material is pressed. Under such conditions, the hardening progresses. Such pipe is more equidirectional than a carbon fiber complex and has a small difference between the diameter and lengthwise directions of the pipe.
JP9365080A 1980-07-08 1980-07-08 Production of tone arm Pending JPS5718002A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9365080A JPS5718002A (en) 1980-07-08 1980-07-08 Production of tone arm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9365080A JPS5718002A (en) 1980-07-08 1980-07-08 Production of tone arm

Publications (1)

Publication Number Publication Date
JPS5718002A true JPS5718002A (en) 1982-01-29

Family

ID=14088243

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9365080A Pending JPS5718002A (en) 1980-07-08 1980-07-08 Production of tone arm

Country Status (1)

Country Link
JP (1) JPS5718002A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62107103A (en) * 1985-11-01 1987-05-18 大成建設株式会社 Construction of bridge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62107103A (en) * 1985-11-01 1987-05-18 大成建設株式会社 Construction of bridge

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