JPS57127397A - Nondirectional speaker - Google Patents

Nondirectional speaker

Info

Publication number
JPS57127397A
JPS57127397A JP1322381A JP1322381A JPS57127397A JP S57127397 A JPS57127397 A JP S57127397A JP 1322381 A JP1322381 A JP 1322381A JP 1322381 A JP1322381 A JP 1322381A JP S57127397 A JPS57127397 A JP S57127397A
Authority
JP
Japan
Prior art keywords
coil
radial direction
cylinder
semicylindrical
diaphragms
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
JP1322381A
Other languages
Japanese (ja)
Inventor
Shigeya Nishihara
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP1322381A priority Critical patent/JPS57127397A/en
Publication of JPS57127397A publication Critical patent/JPS57127397A/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
    • H04R9/063—Loudspeakers using a plurality of acoustic drivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/323—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only for loudspeakers

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • 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 obtain a speaker having the nondirectivity in a horizontal direction, by connecting plural semicylindrical diaphragms at a fold part, mounting a mobile coil wound into a flat rectangle at the fold part and then setting the windings at the magnetic fields which are opposite and orthogonal to each other. CONSTITUTION:Plural semicylindrical diaphragms 1 are connected at a fold part 2 to form an oscillation cylinder 3 having a petal-shaped section. A mobile coil 4 formed into a flat and rectangle is mounted at the part 2 so that the longer side of the coil 4 is set in parallel to the part 2. Both the coil 4 and the cylinder 3 are attached to a frame 7 by means of a center damper 5 and a peripheral damper 6 so that they can oscillate in the radial direction. A permanent magnet 8 and a yoke 9 are assembled into a U-shaped and an adverse U- shape to form intensive magnetic fields opposite to each other and orthogonal to the winding of the coil 4. When an alternating current is flowed to the coil 4, the diaphragm 1 oscillates in the radial direction. And the coils 4 are set so as to generate the driving force of the same phase to each other. Thus the cylinder 3 is oscillated so as to be expanded and contracted in the radial direction. As a result, the sound waves are radiated evenly in the radial direction.
JP1322381A 1981-01-30 1981-01-30 Nondirectional speaker Pending JPS57127397A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1322381A JPS57127397A (en) 1981-01-30 1981-01-30 Nondirectional speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1322381A JPS57127397A (en) 1981-01-30 1981-01-30 Nondirectional speaker

Publications (1)

Publication Number Publication Date
JPS57127397A true JPS57127397A (en) 1982-08-07

Family

ID=11827171

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1322381A Pending JPS57127397A (en) 1981-01-30 1981-01-30 Nondirectional speaker

Country Status (1)

Country Link
JP (1) JPS57127397A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006333441A (en) * 2005-04-15 2006-12-07 Victor Co Of Japan Ltd Electroacoustic transducer
JP2006333440A (en) * 2005-04-15 2006-12-07 Victor Co Of Japan Ltd Electroacoustic transducer
CN103858443A (en) * 2011-10-04 2014-06-11 佐尔坦·贝 Loudspeaker

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006333441A (en) * 2005-04-15 2006-12-07 Victor Co Of Japan Ltd Electroacoustic transducer
JP2006333440A (en) * 2005-04-15 2006-12-07 Victor Co Of Japan Ltd Electroacoustic transducer
US7835536B2 (en) 2005-04-15 2010-11-16 Victor Company Of Japan Limited Electro-acoustic transducer with multi-faced diaphragm assembly
US8488816B2 (en) 2005-04-15 2013-07-16 JVC Kenwood Corporation Electro-acoustic transducer with multi-faced diaphragm assembly
CN103858443A (en) * 2011-10-04 2014-06-11 佐尔坦·贝 Loudspeaker
EP2764708A2 (en) * 2011-10-04 2014-08-13 Bay, Zoltán Loudspeaker
JP2014533455A (en) * 2011-10-04 2014-12-11 ベイ, ゾルタンBAY, Zoltan Loudspeaker
EP2764708A4 (en) * 2011-10-04 2015-03-25 Zoltán Bay Loudspeaker
US9088849B2 (en) 2011-10-04 2015-07-21 Zoltan Bay Loudspeaker
CN103858443B (en) * 2011-10-04 2017-07-25 佐尔坦·贝 Loudspeaker

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