JPS5630398A - Diaphragm for loudspeaker - Google Patents

Diaphragm for loudspeaker

Info

Publication number
JPS5630398A
JPS5630398A JP10635779A JP10635779A JPS5630398A JP S5630398 A JPS5630398 A JP S5630398A JP 10635779 A JP10635779 A JP 10635779A JP 10635779 A JP10635779 A JP 10635779A JP S5630398 A JPS5630398 A JP S5630398A
Authority
JP
Japan
Prior art keywords
hollow glass
glass fiber
fiber
loudspeaker
diaphragm
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
JP10635779A
Other languages
Japanese (ja)
Inventor
Toru Yamamoto
Hirotoshi Niiguchi
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 JP10635779A priority Critical patent/JPS5630398A/en
Publication of JPS5630398A publication Critical patent/JPS5630398A/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

Landscapes

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

Abstract

PURPOSE:To obtain a loudspeaker diaphragm of high specific elastic modulus and great bending rigidity by using paper or synthetic resin as a base material and hollow glass fiber as a compound reinforcing material. CONSTITUTION:With a high-density polyethylene synthetic pulp base material, hollow glass fiber of 6mm. in fiber length, 18mum in outer diameter, 12mum in inner diameter, and 1.9 in apparent specific gravity is mixed in 5-20wt% proportion. As a dispersant, a betaine type amphoteric surface active agent is added to about 1%, so that the dispersibility of the hollow glass fiber will improve remarkably. Then, at the point in time when the polyethylene base is softened by heating, cold press work is carried out to form a diaphragm for a loudspeaker. As part of the above- mentioned hollow glass fiber, aramide fiber of 1.5mm. in fiber length may be used.
JP10635779A 1979-08-20 1979-08-20 Diaphragm for loudspeaker Pending JPS5630398A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10635779A JPS5630398A (en) 1979-08-20 1979-08-20 Diaphragm for loudspeaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10635779A JPS5630398A (en) 1979-08-20 1979-08-20 Diaphragm for loudspeaker

Publications (1)

Publication Number Publication Date
JPS5630398A true JPS5630398A (en) 1981-03-26

Family

ID=14431496

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10635779A Pending JPS5630398A (en) 1979-08-20 1979-08-20 Diaphragm for loudspeaker

Country Status (1)

Country Link
JP (1) JPS5630398A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002044782A (en) * 2000-07-28 2002-02-08 Foster Electric Co Ltd Diaphragm for electric-acoustic transducer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002044782A (en) * 2000-07-28 2002-02-08 Foster Electric Co Ltd Diaphragm for electric-acoustic transducer

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