JPS5414723A - Acoustic diaphragm - Google Patents

Acoustic diaphragm

Info

Publication number
JPS5414723A
JPS5414723A JP7984677A JP7984677A JPS5414723A JP S5414723 A JPS5414723 A JP S5414723A JP 7984677 A JP7984677 A JP 7984677A JP 7984677 A JP7984677 A JP 7984677A JP S5414723 A JPS5414723 A JP S5414723A
Authority
JP
Japan
Prior art keywords
acoustic diaphragm
diaphragm
impairing
rigidity
foamed resin
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
JP7984677A
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 JP7984677A priority Critical patent/JPS5414723A/en
Publication of JPS5414723A publication Critical patent/JPS5414723A/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 solid diaphragm of an electric transducer of small mass without impairing the rigidity of the diaphragm by forming cavities within foamed resin.
JP7984677A 1977-07-06 1977-07-06 Acoustic diaphragm Pending JPS5414723A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7984677A JPS5414723A (en) 1977-07-06 1977-07-06 Acoustic diaphragm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7984677A JPS5414723A (en) 1977-07-06 1977-07-06 Acoustic diaphragm

Publications (1)

Publication Number Publication Date
JPS5414723A true JPS5414723A (en) 1979-02-03

Family

ID=13701556

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7984677A Pending JPS5414723A (en) 1977-07-06 1977-07-06 Acoustic diaphragm

Country Status (1)

Country Link
JP (1) JPS5414723A (en)

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