JPS56168493A - Production of speaker diaphragm - Google Patents

Production of speaker diaphragm

Info

Publication number
JPS56168493A
JPS56168493A JP7150980A JP7150980A JPS56168493A JP S56168493 A JPS56168493 A JP S56168493A JP 7150980 A JP7150980 A JP 7150980A JP 7150980 A JP7150980 A JP 7150980A JP S56168493 A JPS56168493 A JP S56168493A
Authority
JP
Japan
Prior art keywords
diaphragm
center part
production
speaker
speaker 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
JP7150980A
Other languages
Japanese (ja)
Inventor
Masao Hoshitani
Soukichi Miyoshi
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.)
Pioneer Corp
Original Assignee
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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP7150980A priority Critical patent/JPS56168493A/en
Publication of JPS56168493A publication Critical patent/JPS56168493A/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

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 not only the rigidity at the center part of a speaker diaphragm but the effect of radiation of the speaker, by setting the thickness of the center part at least equal to or larger than the thickness of the outer circumference part of the diaphragm. CONSTITUTION:A flat disk type material 1 is preformed and then turned into a medium thick material 1'. Then the material 1' is formed into a conical diaphragm 2 by a press forming or vacuum forming method. Thus the diaphragm 2 is made into a desirable form being thick and thin at a center part 2a and outer circumference part 2b, respectively.
JP7150980A 1980-05-30 1980-05-30 Production of speaker diaphragm Pending JPS56168493A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7150980A JPS56168493A (en) 1980-05-30 1980-05-30 Production of speaker diaphragm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7150980A JPS56168493A (en) 1980-05-30 1980-05-30 Production of speaker diaphragm

Publications (1)

Publication Number Publication Date
JPS56168493A true JPS56168493A (en) 1981-12-24

Family

ID=13462730

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7150980A Pending JPS56168493A (en) 1980-05-30 1980-05-30 Production of speaker diaphragm

Country Status (1)

Country Link
JP (1) JPS56168493A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53124414A (en) * 1977-04-07 1978-10-30 Hitachi Ltd Speaker and its production
JPS5435721A (en) * 1977-08-25 1979-03-16 Pioneer Electronic Corp Method of forming speaker vibrator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53124414A (en) * 1977-04-07 1978-10-30 Hitachi Ltd Speaker and its production
JPS5435721A (en) * 1977-08-25 1979-03-16 Pioneer Electronic Corp Method of forming speaker vibrator

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