JPS5644296A - Diaphragm for speaker - Google Patents

Diaphragm for speaker

Info

Publication number
JPS5644296A
JPS5644296A JP12006179A JP12006179A JPS5644296A JP S5644296 A JPS5644296 A JP S5644296A JP 12006179 A JP12006179 A JP 12006179A JP 12006179 A JP12006179 A JP 12006179A JP S5644296 A JPS5644296 A JP S5644296A
Authority
JP
Japan
Prior art keywords
diaphragm
space
synthetic resin
filled
foamed synthetic
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
JP12006179A
Other languages
Japanese (ja)
Inventor
Norio Mogi
Jun Hatori
Shoji Hirano
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 filed Critical Toshiba Corp
Priority to JP12006179A priority Critical patent/JPS5644296A/en
Publication of JPS5644296A publication Critical patent/JPS5644296A/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 make it possible to control the high-band reproducing limit to a characteristic suited to the necessity without lowering efficiency considerably, by filling foamed synthetic resin with a space left near the top of the conical diaphragm. CONSTITUTION:Foamed synthetic resin 8 is filled in the internal space of conical diaphragm of the speaker. In this case, resin 8 is not filled completely in the space of diaphragm 5 but is filled with resin 8 having a space near the top of diaphragm 5. That is, the region of length H from connection part S between diaphragm 5 and voice coil 9 is hollow. By this constitution, the high-band reproducing limit of the speaker unit using this diaphragm can be controlled according to the necessity by changing the diameter of most inside circumference 10 of the joined part. Further, lowering of efficiency can be reduced by filling foamed synthetic resin.
JP12006179A 1979-09-20 1979-09-20 Diaphragm for speaker Pending JPS5644296A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12006179A JPS5644296A (en) 1979-09-20 1979-09-20 Diaphragm for speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12006179A JPS5644296A (en) 1979-09-20 1979-09-20 Diaphragm for speaker

Publications (1)

Publication Number Publication Date
JPS5644296A true JPS5644296A (en) 1981-04-23

Family

ID=14776913

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12006179A Pending JPS5644296A (en) 1979-09-20 1979-09-20 Diaphragm for speaker

Country Status (1)

Country Link
JP (1) JPS5644296A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008038021A1 (en) * 2006-09-29 2008-04-03 Martin Audio Limited Shaped loudspeaker

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008038021A1 (en) * 2006-09-29 2008-04-03 Martin Audio Limited Shaped loudspeaker

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