JPS5597796A - Production of diaphragm for speaker - Google Patents

Production of diaphragm for speaker

Info

Publication number
JPS5597796A
JPS5597796A JP576079A JP576079A JPS5597796A JP S5597796 A JPS5597796 A JP S5597796A JP 576079 A JP576079 A JP 576079A JP 576079 A JP576079 A JP 576079A JP S5597796 A JPS5597796 A JP S5597796A
Authority
JP
Japan
Prior art keywords
base material
modulus
young
diaphragm
resin
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
JP576079A
Other languages
Japanese (ja)
Inventor
Yasushi Miyoshi
Yasuhiro Ishii
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP576079A priority Critical patent/JPS5597796A/en
Publication of JPS5597796A publication Critical patent/JPS5597796A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction

Abstract

PURPOSE:To improve the propagation speed of sound and a Young's modulus without increment of density by shaping carbon fiber of a specific Young's modulus and natural fiber with a specific ratio into a base material by paper making and by subjecting this base material to resin inclusion and chemical plating processings. CONSTITUTION:Natural fiber and carbon fiber of a Yound's modulus of 3000- 15000kg/cm<2> are set to a weight ratio of the former 10-40% and the latter 90- 60%, and polyvinyl alcohol fiber is used as a binder to shape them into a diaphragm base material by paper making. Next, this base material is soaked into thermosetting resin such as phenol resin and silicone resin to give heat-proof and water-proof properties to the base material, and after that, the base material is subjected to the chemical plating processing to bind fibers, which constitute the diaphragm, by a metal. Thus, the propagation speed of sound and the Young's modulus can be improved without increment of density, and generation of the peak in the frequency characteristic of the high acoustic band can be suppressed.
JP576079A 1979-01-20 1979-01-20 Production of diaphragm for speaker Pending JPS5597796A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP576079A JPS5597796A (en) 1979-01-20 1979-01-20 Production of diaphragm for speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP576079A JPS5597796A (en) 1979-01-20 1979-01-20 Production of diaphragm for speaker

Publications (1)

Publication Number Publication Date
JPS5597796A true JPS5597796A (en) 1980-07-25

Family

ID=11620070

Family Applications (1)

Application Number Title Priority Date Filing Date
JP576079A Pending JPS5597796A (en) 1979-01-20 1979-01-20 Production of diaphragm for speaker

Country Status (1)

Country Link
JP (1) JPS5597796A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60260294A (en) * 1984-06-07 1985-12-23 Matsushita Electric Ind Co Ltd Diaphragm for speaker
JPH04128495U (en) * 1991-05-15 1992-11-24 株式会社ケンウツド Edge of speaker diaphragm

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60260294A (en) * 1984-06-07 1985-12-23 Matsushita Electric Ind Co Ltd Diaphragm for speaker
JPH04128495U (en) * 1991-05-15 1992-11-24 株式会社ケンウツド Edge of speaker diaphragm

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