JPS5471620A - Diaphragm - Google Patents

Diaphragm

Info

Publication number
JPS5471620A
JPS5471620A JP13859177A JP13859177A JPS5471620A JP S5471620 A JPS5471620 A JP S5471620A JP 13859177 A JP13859177 A JP 13859177A JP 13859177 A JP13859177 A JP 13859177A JP S5471620 A JPS5471620 A JP S5471620A
Authority
JP
Japan
Prior art keywords
cone
diaphragm
piston motion
generator
along
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.)
Granted
Application number
JP13859177A
Other languages
Japanese (ja)
Other versions
JPS5629439B2 (en
Inventor
Shinichiro Ishii
Tatsuo Fukuyama
Kenichi Takahashi
Takafumi Ueno
Koshin Shimada
Yoshiaki Harada
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 JP13859177A priority Critical patent/JPS5471620A/en
Publication of JPS5471620A publication Critical patent/JPS5471620A/en
Publication of JPS5629439B2 publication Critical patent/JPS5629439B2/ja
Granted 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

Landscapes

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

Abstract

PURPOSE:To let piston motion be performed over a wide frequency range by arraying fibers along the generator of cone in a diaphragm for cone type speakers. CONSTITUTION:Carbon fibers 3 havig been impregnated with a resin are affixed onto an Al cone 2 along the generator direction of the cone 2, after which they are heated for 3 hours at 120 to 130 deg.C and formed. By this manner, the carbon fiber reinforced Al diaphragm 1 having anisotropy is obtained and the resonance frequency of said cone type diaphragm becomes high, thus its piston motion region is expanded.
JP13859177A 1977-11-17 1977-11-17 Diaphragm Granted JPS5471620A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13859177A JPS5471620A (en) 1977-11-17 1977-11-17 Diaphragm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13859177A JPS5471620A (en) 1977-11-17 1977-11-17 Diaphragm

Publications (2)

Publication Number Publication Date
JPS5471620A true JPS5471620A (en) 1979-06-08
JPS5629439B2 JPS5629439B2 (en) 1981-07-08

Family

ID=15225668

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13859177A Granted JPS5471620A (en) 1977-11-17 1977-11-17 Diaphragm

Country Status (1)

Country Link
JP (1) JPS5471620A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982000744A1 (en) * 1980-08-14 1982-03-04 P Sylvestre Improvements in electroacoustic transducer diaphragms
JPS62161490U (en) * 1986-04-04 1987-10-14
JPS6437199A (en) * 1987-08-01 1989-02-07 Sony Corp Speaker diaphragm

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5230895U (en) * 1975-06-24 1977-03-04

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5230895U (en) * 1975-06-24 1977-03-04

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982000744A1 (en) * 1980-08-14 1982-03-04 P Sylvestre Improvements in electroacoustic transducer diaphragms
JPS62161490U (en) * 1986-04-04 1987-10-14
JPS6437199A (en) * 1987-08-01 1989-02-07 Sony Corp Speaker diaphragm

Also Published As

Publication number Publication date
JPS5629439B2 (en) 1981-07-08

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