JPS5657394A - Diaphragm for acoustic apparatus - Google Patents

Diaphragm for acoustic apparatus

Info

Publication number
JPS5657394A
JPS5657394A JP13386079A JP13386079A JPS5657394A JP S5657394 A JPS5657394 A JP S5657394A JP 13386079 A JP13386079 A JP 13386079A JP 13386079 A JP13386079 A JP 13386079A JP S5657394 A JPS5657394 A JP S5657394A
Authority
JP
Japan
Prior art keywords
diaphragm
weather resistance
component
forming
polypropylene fiber
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
JP13386079A
Other languages
Japanese (ja)
Inventor
Kazuo Tsuchiya
Fumio Kawahara
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.)
Mogami Denki Corp
Pioneer Corp
Original Assignee
Mogami Denki Corp
Pioneer Electronic 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 Mogami Denki Corp, Pioneer Electronic Corp filed Critical Mogami Denki Corp
Priority to JP13386079A priority Critical patent/JPS5657394A/en
Publication of JPS5657394A publication Critical patent/JPS5657394A/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 the vibrators having different characteristics plus the excellent dampproof property and weather resistance each, by forming the vibrator with the unwoven fabric of the polypropylene fiber and without using the polyester film. CONSTITUTION:The unwoven fabric of the polypropylene fiber is cut to obtain the diaphram component 1 having a sufficient area to produce e.g. a dome-shaped diaphragm. And this component 1 is pressure molded with a pair of upper and lower molding tools 2. In this case, the pressing condition is changed for the diaphragm according to the purpose of applications. For example, in the case of an application for a low-pitched sound, some extent of stiffness is given to the diaphragm while keeping the degree of internal loss the diaphragm 1 has originally. For this purpose, the temperature is increased for the molding tool during the press molding. Thus the characteristics of the diaphragm can be varied with the control given to the pressing and heating conditions during the forming, at the same time securing the excellent dampproof property and weather resistance.
JP13386079A 1979-10-17 1979-10-17 Diaphragm for acoustic apparatus Pending JPS5657394A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13386079A JPS5657394A (en) 1979-10-17 1979-10-17 Diaphragm for acoustic apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13386079A JPS5657394A (en) 1979-10-17 1979-10-17 Diaphragm for acoustic apparatus

Publications (1)

Publication Number Publication Date
JPS5657394A true JPS5657394A (en) 1981-05-19

Family

ID=15114730

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13386079A Pending JPS5657394A (en) 1979-10-17 1979-10-17 Diaphragm for acoustic apparatus

Country Status (1)

Country Link
JP (1) JPS5657394A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58144995U (en) * 1982-03-24 1983-09-29 オンキヨー株式会社 Dust cap for speaker

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49115538A (en) * 1973-03-07 1974-11-05

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49115538A (en) * 1973-03-07 1974-11-05

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58144995U (en) * 1982-03-24 1983-09-29 オンキヨー株式会社 Dust cap for speaker
JPS6325825Y2 (en) * 1982-03-24 1988-07-13

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