JPS5731296A - Speaker diaphragm - Google Patents

Speaker diaphragm

Info

Publication number
JPS5731296A
JPS5731296A JP10610880A JP10610880A JPS5731296A JP S5731296 A JPS5731296 A JP S5731296A JP 10610880 A JP10610880 A JP 10610880A JP 10610880 A JP10610880 A JP 10610880A JP S5731296 A JPS5731296 A JP S5731296A
Authority
JP
Japan
Prior art keywords
speaker diaphragm
powder
cellulose powder
synthetic pulp
wood powder
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
JP10610880A
Other languages
Japanese (ja)
Other versions
JPS5927152B2 (en
Inventor
Hirotoshi Niiguchi
Toru Yamamoto
Mitsuru Yashiro
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 JP10610880A priority Critical patent/JPS5927152B2/en
Publication of JPS5731296A publication Critical patent/JPS5731296A/en
Publication of JPS5927152B2 publication Critical patent/JPS5927152B2/en
Expired 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

PURPOSE:To improve the molding performance, the modulus of elasticity and the internal loss respectively, by adding the wood powder or the cellulose powder to the synthetic pulp made of the thermoplastic resins. CONSTITUTION:A speaker diaphragm is made of the synthetic pulp containing the natual cellulose powder. With use of the wood powder or the cellulose powder, a deep forming is possible in the form of a compound sheet alone. Thus molding process is simplified.
JP10610880A 1980-07-31 1980-07-31 Diaphragm for speaker Expired JPS5927152B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10610880A JPS5927152B2 (en) 1980-07-31 1980-07-31 Diaphragm for speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10610880A JPS5927152B2 (en) 1980-07-31 1980-07-31 Diaphragm for speaker

Publications (2)

Publication Number Publication Date
JPS5731296A true JPS5731296A (en) 1982-02-19
JPS5927152B2 JPS5927152B2 (en) 1984-07-03

Family

ID=14425281

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10610880A Expired JPS5927152B2 (en) 1980-07-31 1980-07-31 Diaphragm for speaker

Country Status (1)

Country Link
JP (1) JPS5927152B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1781064A1 (en) * 2004-08-19 2007-05-02 OG Corporation Diaphragm for speaker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1781064A1 (en) * 2004-08-19 2007-05-02 OG Corporation Diaphragm for speaker
EP1781064A4 (en) * 2004-08-19 2008-11-19 Diaphragm for speaker

Also Published As

Publication number Publication date
JPS5927152B2 (en) 1984-07-03

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