JPS5730498A - Diaphragm for speaker - Google Patents

Diaphragm for speaker

Info

Publication number
JPS5730498A
JPS5730498A JP10564980A JP10564980A JPS5730498A JP S5730498 A JPS5730498 A JP S5730498A JP 10564980 A JP10564980 A JP 10564980A JP 10564980 A JP10564980 A JP 10564980A JP S5730498 A JPS5730498 A JP S5730498A
Authority
JP
Japan
Prior art keywords
fiber layer
layer
diaphragm
fiber
spraying
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
JP10564980A
Other languages
Japanese (ja)
Inventor
Tokinori Wada
Taro Eguchi
Tamotsu Abe
Michizo Saeki
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.)
Onkyo Corp
Original Assignee
Onkyo Corp
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 Onkyo Corp filed Critical Onkyo Corp
Priority to JP10564980A priority Critical patent/JPS5730498A/en
Publication of JPS5730498A publication Critical patent/JPS5730498A/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
    • H04R7/127—Non-planar diaphragms or cones dome-shaped

Landscapes

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

Abstract

PURPOSE:To obtain a speaker diaphragm capable of expanding its reproduction frequency band and of flattening frequency characteristics, by forming a bubble- containing metallic layer on a base made of silicon carbide fiber by spraying a fused metallic material under high pressure. CONSTITUTION:Silicon carbide fiber is dispersed in water 1 uniformly and the water is discharged to form sediment of a fiber layer 3a on a scooping net coated with ''Teflon ''. In this state, the scooping net 2 is taken out and an adhesive 4, such as phenol, is sprayed on the fiber layer 3a and dried. Then, the fiber layer 3a peeled off from the scooping net 2 is mounted on a mold board 7. To the pipe 14 of a powder melt-spraying device 11, Al powder 16 formed into a diaphragm is supplied and to the pipes 12 and 13, compressed air and combustion gas are supplied respectively for a melt-spraying treatment; and produced fine garins 16a are pressed into the gap of the fiber layer 3a and solidified to form a metallic layer 3b. The diaphragm 3 consisting of the metallic layer 3b and fiber layer 3a obtained by being separated from the mold board 7 is further dipped in synthetic resin, such as an SBR solution, having a large internal loss for impregration as its final treatment.
JP10564980A 1980-07-30 1980-07-30 Diaphragm for speaker Pending JPS5730498A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10564980A JPS5730498A (en) 1980-07-30 1980-07-30 Diaphragm for speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10564980A JPS5730498A (en) 1980-07-30 1980-07-30 Diaphragm for speaker

Publications (1)

Publication Number Publication Date
JPS5730498A true JPS5730498A (en) 1982-02-18

Family

ID=14413293

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10564980A Pending JPS5730498A (en) 1980-07-30 1980-07-30 Diaphragm for speaker

Country Status (1)

Country Link
JP (1) JPS5730498A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6319588A (en) * 1986-07-14 1988-01-27 Matsushita Electric Works Ltd Awaking device
US5479939A (en) * 1990-03-09 1996-01-02 Matsushita Electric Industrial Co., Ltd. Sleep detecting apparatus
US5701359A (en) * 1995-04-06 1997-12-23 Precision Power Flat-panel speaker
US6097829A (en) * 1995-04-06 2000-08-01 Precision Power, Inc. Fiber-honeycomb-fiber sandwich speaker diaphragm and method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6319588A (en) * 1986-07-14 1988-01-27 Matsushita Electric Works Ltd Awaking device
US5479939A (en) * 1990-03-09 1996-01-02 Matsushita Electric Industrial Co., Ltd. Sleep detecting apparatus
US5724990A (en) * 1990-03-09 1998-03-10 Matsushita Electric Industrial Co., Ltd. Human monitoring apparatus
US5902255A (en) * 1990-03-09 1999-05-11 Matsushita Electric Industrial Co., Ltd. Human monitoring device
US5701359A (en) * 1995-04-06 1997-12-23 Precision Power Flat-panel speaker
US6097829A (en) * 1995-04-06 2000-08-01 Precision Power, Inc. Fiber-honeycomb-fiber sandwich speaker diaphragm and method

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