JPS5451816A - Speaker - Google Patents

Speaker

Info

Publication number
JPS5451816A
JPS5451816A JP11800477A JP11800477A JPS5451816A JP S5451816 A JPS5451816 A JP S5451816A JP 11800477 A JP11800477 A JP 11800477A JP 11800477 A JP11800477 A JP 11800477A JP S5451816 A JPS5451816 A JP S5451816A
Authority
JP
Japan
Prior art keywords
speaker
diaphragms
fixed
yokes
speakers
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
JP11800477A
Other languages
Japanese (ja)
Inventor
Masao Fujihira
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP11800477A priority Critical patent/JPS5451816A/en
Publication of JPS5451816A publication Critical patent/JPS5451816A/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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

PURPOSE:To simultaneously improve the linearity of driving system and supporting system and achieve the improvement in frequency characteristics by symmetrically disposing two speakers with diaphragms in-between and driving these in mutually anti-phases. CONSTITUTION:Speakers 2a, 2b of the same construction are opposedly superposed. Openings 4a, 4b are respectively provided in frames 3a, 3b and circular cylindrical permanent magnets 6a, 6b are fixed in the approximate center of yokes 5a, 5b. Poles 7a, 7b are fixed to their respective ends. Annular gaps 8a, 8b are constituted at respectively spacified spacings between the yokes 5a, 5b and the poles 7a, 7b, because of which the magnetic circuit of the arrow A in the speaker 2a and the magnetic circuit of the arrow B in the speaker 2B are respectively constituted by the magnetic fluxes generated from the magnets 6a, 6b. A foamed material 6 which is integrally formed to annular form by using expanded styrene or the like is interposed between the diaphragms 13a, 13b. The diaphragms are bonded and fixed on both side faces thereof. Thereby, the frequency characteristics of the speaker may be made extremely well.
JP11800477A 1977-09-30 1977-09-30 Speaker Pending JPS5451816A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11800477A JPS5451816A (en) 1977-09-30 1977-09-30 Speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11800477A JPS5451816A (en) 1977-09-30 1977-09-30 Speaker

Publications (1)

Publication Number Publication Date
JPS5451816A true JPS5451816A (en) 1979-04-24

Family

ID=14725661

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11800477A Pending JPS5451816A (en) 1977-09-30 1977-09-30 Speaker

Country Status (1)

Country Link
JP (1) JPS5451816A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5590199A (en) * 1978-12-28 1980-07-08 Yoshiro Nakamatsu Multidrive speaker
JPS60259089A (en) * 1984-06-06 1985-12-21 Yoshiro Nakamatsu Speaker equipment
JPS6349892U (en) * 1986-09-19 1988-04-04
JPS6412699A (en) * 1987-07-06 1989-01-17 Sanyo Electric Co Speaker
WO2015136656A1 (en) * 2014-03-13 2015-09-17 賢太 田中 Speaker device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5590199A (en) * 1978-12-28 1980-07-08 Yoshiro Nakamatsu Multidrive speaker
JPS5756279B2 (en) * 1978-12-28 1982-11-29
JPS60259089A (en) * 1984-06-06 1985-12-21 Yoshiro Nakamatsu Speaker equipment
JPS6349892U (en) * 1986-09-19 1988-04-04
JPS6412699A (en) * 1987-07-06 1989-01-17 Sanyo Electric Co Speaker
WO2015136656A1 (en) * 2014-03-13 2015-09-17 賢太 田中 Speaker device
JPWO2015136656A1 (en) * 2014-03-13 2017-04-06 賢太 田中 Speaker device

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