JPS5414722A - Acoustic diaphragm - Google Patents

Acoustic diaphragm

Info

Publication number
JPS5414722A
JPS5414722A JP7984577A JP7984577A JPS5414722A JP S5414722 A JPS5414722 A JP S5414722A JP 7984577 A JP7984577 A JP 7984577A JP 7984577 A JP7984577 A JP 7984577A JP S5414722 A JPS5414722 A JP S5414722A
Authority
JP
Japan
Prior art keywords
acoustic diaphragm
foamed resin
diaphragms
electro
spaces
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
JP7984577A
Other languages
Japanese (ja)
Inventor
Shinichiro Kawamura
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7984577A priority Critical patent/JPS5414722A/en
Publication of JPS5414722A publication Critical patent/JPS5414722A/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
    • H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers

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 a foamed resin filled diaphragm of an electro-acoustic transducer of a wide range by concentrically disposing two or more diaphragms and filling foamed resin in the spaces.
JP7984577A 1977-07-06 1977-07-06 Acoustic diaphragm Pending JPS5414722A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7984577A JPS5414722A (en) 1977-07-06 1977-07-06 Acoustic diaphragm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7984577A JPS5414722A (en) 1977-07-06 1977-07-06 Acoustic diaphragm

Publications (1)

Publication Number Publication Date
JPS5414722A true JPS5414722A (en) 1979-02-03

Family

ID=13701528

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7984577A Pending JPS5414722A (en) 1977-07-06 1977-07-06 Acoustic diaphragm

Country Status (1)

Country Link
JP (1) JPS5414722A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5527703A (en) * 1978-08-18 1980-02-28 Sony Corp Vibrator for speaker
JPS60108182U (en) * 1983-12-26 1985-07-23 三菱電機株式会社 DC machine brush device
JPWO2007034781A1 (en) * 2005-09-20 2009-03-26 株式会社ビームテック Speaker, speaker diaphragm and suspension

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5527703A (en) * 1978-08-18 1980-02-28 Sony Corp Vibrator for speaker
JPS6211558B2 (en) * 1978-08-18 1987-03-13 Sony Corp
JPS60108182U (en) * 1983-12-26 1985-07-23 三菱電機株式会社 DC machine brush device
JPWO2007034781A1 (en) * 2005-09-20 2009-03-26 株式会社ビームテック Speaker, speaker diaphragm and suspension

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