JPS5776996A - Diaphragm for speaker - Google Patents

Diaphragm for speaker

Info

Publication number
JPS5776996A
JPS5776996A JP15330080A JP15330080A JPS5776996A JP S5776996 A JPS5776996 A JP S5776996A JP 15330080 A JP15330080 A JP 15330080A JP 15330080 A JP15330080 A JP 15330080A JP S5776996 A JPS5776996 A JP S5776996A
Authority
JP
Japan
Prior art keywords
diaphragm
solu
pulp
acrylonitrile
butadiene
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
JP15330080A
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 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 Corp, Pioneer Electronic Corp filed Critical Mogami Denki Corp
Priority to JP15330080A priority Critical patent/JPS5776996A/en
Publication of JPS5776996A publication Critical patent/JPS5776996A/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 increase the Yong's modulus and moisture resistance and water resistance, by mixing the elastic synthetic resin of copolymer obtained from acrylonitrile and butadiene with pulp solu. CONSTITUTION:Synthetic resin of copolymer obtained from acrylonitrile and butadiene is mixed with wood pulp solu. at about 3wt% ratio basing on wood pulp and contented water is removed from the pulp solu. to form sheet-like material. A diaphragm is obtained by heating and pressing the sheet into a prescribed shape. Thus, the moisture resistance and water resistance of the diaphragm are increased, allowing to prevent time aging deterioration.
JP15330080A 1980-10-30 1980-10-30 Diaphragm for speaker Pending JPS5776996A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15330080A JPS5776996A (en) 1980-10-30 1980-10-30 Diaphragm for speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15330080A JPS5776996A (en) 1980-10-30 1980-10-30 Diaphragm for speaker

Publications (1)

Publication Number Publication Date
JPS5776996A true JPS5776996A (en) 1982-05-14

Family

ID=15559456

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15330080A Pending JPS5776996A (en) 1980-10-30 1980-10-30 Diaphragm for speaker

Country Status (1)

Country Link
JP (1) JPS5776996A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6049891A (en) * 1983-08-30 1985-03-19 Agency Of Ind Science & Technol Electrode for tig arc welding
JPS6195699A (en) * 1984-10-16 1986-05-14 Pioneer Electronic Corp Diaphragm for speaker
JP2007210033A (en) * 1997-03-20 2007-08-23 Tadahiro Omi Long life welding electrode and its welding head

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5021846A (en) * 1973-07-02 1975-03-08
JPS5380219A (en) * 1976-12-24 1978-07-15 Nippon Columbia Vibration plate for loudspeaker
JPS5427137A (en) * 1977-07-29 1979-03-01 Toyota Motor Corp Traffic information treating and indicating system for vehicle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5021846A (en) * 1973-07-02 1975-03-08
JPS5380219A (en) * 1976-12-24 1978-07-15 Nippon Columbia Vibration plate for loudspeaker
JPS5427137A (en) * 1977-07-29 1979-03-01 Toyota Motor Corp Traffic information treating and indicating system for vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6049891A (en) * 1983-08-30 1985-03-19 Agency Of Ind Science & Technol Electrode for tig arc welding
JPS6317037B2 (en) * 1983-08-30 1988-04-12 Kogyo Gijutsuin
JPS6195699A (en) * 1984-10-16 1986-05-14 Pioneer Electronic Corp Diaphragm for speaker
JP2007210033A (en) * 1997-03-20 2007-08-23 Tadahiro Omi Long life welding electrode and its welding head

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