JPS54105526A - Diaphragm for speakers and production of the same - Google Patents

Diaphragm for speakers and production of the same

Info

Publication number
JPS54105526A
JPS54105526A JP1287078A JP1287078A JPS54105526A JP S54105526 A JPS54105526 A JP S54105526A JP 1287078 A JP1287078 A JP 1287078A JP 1287078 A JP1287078 A JP 1287078A JP S54105526 A JPS54105526 A JP S54105526A
Authority
JP
Japan
Prior art keywords
polyester non
layer structure
woven fabric
nylon film
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
JP1287078A
Other languages
Japanese (ja)
Inventor
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 JP1287078A priority Critical patent/JPS54105526A/en
Publication of JPS54105526A publication Critical patent/JPS54105526A/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
    • H04R7/12—Non-planar diaphragms or cones
    • H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers
    • H04R7/125—Non-planar diaphragms or cones comprising a plurality of sections or layers comprising a plurality of superposed layers in contact

Landscapes

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

Abstract

PURPOSE:To make possible integral forming of the cone part of 3 layer structure and the edge part of 2 layer structure and increasing of rigidity and internal loss by holding a high polymer film in place between inorganic fibers and organic foamed material. CONSTITUTION:Only the cone part is formed with a polyester non-woven fabric 1 of 40 g/m<2> in surface density. Next, a polyester non-woven fibric 3 of 40 g/m<2> in surface density laminated with a nylon film 2 of 20mu on one surface is laminated and integrally formed by a hot press of 180 deg.C. And the diaphragm perfected assumes the 3 layer sctructure of the polyester non-waven fabric 1, nylon film 2, polyester non- woven fabric 3 of the cone part and the double layer structure of the nylon film 2 and polyester non-woven fabric 3 of the edge part.
JP1287078A 1978-02-06 1978-02-06 Diaphragm for speakers and production of the same Pending JPS54105526A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1287078A JPS54105526A (en) 1978-02-06 1978-02-06 Diaphragm for speakers and production of the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1287078A JPS54105526A (en) 1978-02-06 1978-02-06 Diaphragm for speakers and production of the same

Publications (1)

Publication Number Publication Date
JPS54105526A true JPS54105526A (en) 1979-08-18

Family

ID=11817447

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1287078A Pending JPS54105526A (en) 1978-02-06 1978-02-06 Diaphragm for speakers and production of the same

Country Status (1)

Country Link
JP (1) JPS54105526A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5734693U (en) * 1980-07-29 1982-02-23
JPS6047392U (en) * 1983-09-08 1985-04-03 株式会社ケンウッド Acoustic diaphragm
US5198624A (en) * 1988-02-10 1993-03-30 Linaeum Corporation Audio transducer with controlled flexibility diaphragm
US6378649B1 (en) * 1999-03-03 2002-04-30 Onkyo Corporation Speaker member and manufacturing method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5734693U (en) * 1980-07-29 1982-02-23
JPS6047392U (en) * 1983-09-08 1985-04-03 株式会社ケンウッド Acoustic diaphragm
US5198624A (en) * 1988-02-10 1993-03-30 Linaeum Corporation Audio transducer with controlled flexibility diaphragm
US6378649B1 (en) * 1999-03-03 2002-04-30 Onkyo Corporation Speaker member and manufacturing method thereof

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