JPS5642497A - Diaphragm for loudspeaker - Google Patents

Diaphragm for loudspeaker

Info

Publication number
JPS5642497A
JPS5642497A JP11808079A JP11808079A JPS5642497A JP S5642497 A JPS5642497 A JP S5642497A JP 11808079 A JP11808079 A JP 11808079A JP 11808079 A JP11808079 A JP 11808079A JP S5642497 A JPS5642497 A JP S5642497A
Authority
JP
Japan
Prior art keywords
cone paper
resin
loudspeaker
diaphragm
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
JP11808079A
Other languages
Japanese (ja)
Inventor
Masaji Watanabe
Hideyuki Irie
Yukitoshi Matsuo
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.)
Coorstek KK
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Toshiba Ceramics 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd, Toshiba Ceramics Co Ltd filed Critical Toshiba Corp
Priority to JP11808079A priority Critical patent/JPS5642497A/en
Publication of JPS5642497A publication Critical patent/JPS5642497A/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 make it possible to widen a reproduction band by applying for impregnating the cone paper of a loudspeaker diaphragm using the cone paper with phenol-based or epoxybased resin and then by heating it. CONSTITUTION:On the surface of manufactured cone paper, the mixture of alcohol and resin in 1:1 weight proportion is applied. Next, the coated cone paper is heated at a temperature of 150 deg.C for about one hour. The cone paper has the Young's modulus E improved greatly, so that this will become lightweight and strong. Consequently, the loudspeaker diaphragm using the cone paper like this has the wider reproduction range of frequency characteristics in comparison with that before the treatment.
JP11808079A 1979-09-14 1979-09-14 Diaphragm for loudspeaker Pending JPS5642497A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11808079A JPS5642497A (en) 1979-09-14 1979-09-14 Diaphragm for loudspeaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11808079A JPS5642497A (en) 1979-09-14 1979-09-14 Diaphragm for loudspeaker

Publications (1)

Publication Number Publication Date
JPS5642497A true JPS5642497A (en) 1981-04-20

Family

ID=14727492

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11808079A Pending JPS5642497A (en) 1979-09-14 1979-09-14 Diaphragm for loudspeaker

Country Status (1)

Country Link
JP (1) JPS5642497A (en)

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