EP0360061A3 - Loudspeaker diaphragm - Google Patents

Loudspeaker diaphragm Download PDF

Info

Publication number
EP0360061A3
EP0360061A3 EP19890116256 EP89116256A EP0360061A3 EP 0360061 A3 EP0360061 A3 EP 0360061A3 EP 19890116256 EP19890116256 EP 19890116256 EP 89116256 A EP89116256 A EP 89116256A EP 0360061 A3 EP0360061 A3 EP 0360061A3
Authority
EP
European Patent Office
Prior art keywords
loudspeaker diaphragm
improved
thermoplastic polyurethane
movement element
foil thickness
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.)
Withdrawn
Application number
EP19890116256
Other languages
German (de)
French (fr)
Other versions
EP0360061A2 (en
Inventor
Joachim Dipl.-Ing. Wank
Werner Dipl.-Ing. Waldenrath
Dieter Dr. Freitag
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of EP0360061A2 publication Critical patent/EP0360061A2/en
Publication of EP0360061A3 publication Critical patent/EP0360061A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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
    • H04R7/127—Non-planar diaphragms or cones dome-shaped

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

Die positiven Eigenschaften von Lautsprechermembranen werden dadurch verbessert, daß man zumindest für das Bewegungselement (1) eine thermoplastische Polyurethan­ folie der Dicke 0,06 bis 0,8 mm verwendet. The positive properties of speaker membranes are improved in that at least for Movement element (1) a thermoplastic polyurethane foil thickness 0.06 to 0.8 mm is used.

EP19890116256 1988-09-17 1989-09-02 Loudspeaker diaphragm Withdrawn EP0360061A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3831706 1988-09-17
DE3831706A DE3831706A1 (en) 1988-09-17 1988-09-17 MEMBRANE FOR SPEAKERS

Publications (2)

Publication Number Publication Date
EP0360061A2 EP0360061A2 (en) 1990-03-28
EP0360061A3 true EP0360061A3 (en) 1991-12-11

Family

ID=6363191

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890116256 Withdrawn EP0360061A3 (en) 1988-09-17 1989-09-02 Loudspeaker diaphragm

Country Status (4)

Country Link
US (1) US5056617A (en)
EP (1) EP0360061A3 (en)
JP (1) JPH02119500A (en)
DE (1) DE3831706A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11800287B2 (en) 2018-06-15 2023-10-24 Goertek Inc. Speaker diaphragm and speaker
US11825285B2 (en) 2018-06-15 2023-11-21 Goetek Inc. Speaker diaphragm and speaker

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4031742A1 (en) * 1990-10-06 1992-04-09 Nokia Unterhaltungselektronik CALOTH HIGH TONE SPEAKER
JP2005252922A (en) * 2004-03-08 2005-09-15 Matsushita Electric Ind Co Ltd Speaker and manufacturing method thereof
EP2474171B1 (en) * 2007-07-25 2014-11-19 Sinar Baja Electric Ltd. Ring shaped membrane for an electro-acoustical loudspeaker
CN108551641B (en) * 2018-06-15 2019-08-20 歌尔股份有限公司 Loudspeaker

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2302564A1 (en) * 1973-01-19 1974-07-25 Bayer Ag METHOD FOR MANUFACTURING POLYURETHANE ELASTOMERS
DE2842806A1 (en) * 1978-09-30 1980-04-10 Bayer Ag METHOD FOR PRODUCING POLYURETHANE ELASTOMERS
DE3521845A1 (en) * 1985-06-19 1987-01-02 Martin Stute Electrodynamic loudspeaker

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL283889A (en) * 1961-10-04
US3285364A (en) * 1965-06-01 1966-11-15 Ling Temco Vought Inc Loudspeaker construction
AT274080B (en) * 1967-07-05 1969-09-10 Philips Nv Sound transducer with a foam membrane
US3553392A (en) * 1968-03-07 1971-01-05 Electronics Inc Of Pennsylvani Electrodynamic sound radiator
US3578104A (en) * 1968-05-20 1971-05-11 Nippon Musical Instruments Mfg Loudspeaker
US3586121A (en) * 1969-03-03 1971-06-22 Nippon Musical Instruments Mfg Diaphragm for loudspeakers
US3862376A (en) * 1973-01-19 1975-01-21 Stanley F White Cone construction for loudspeaker
GB1563511A (en) * 1976-03-19 1980-03-26 Harwood H Diaphragms for electroacoustic transducers
JPS5343515A (en) * 1976-09-30 1978-04-19 Matsushita Electric Ind Co Ltd Diaphragm for speaker
JPS5379525A (en) * 1976-12-23 1978-07-14 Sony Corp Compound diaphtagm for speakers
JPS53137129A (en) * 1977-05-07 1978-11-30 Matsushita Electric Ind Co Ltd Vibratory diaphragm for acousitic device
JPS556905A (en) * 1978-06-30 1980-01-18 Pioneer Electronic Corp Diaphragm for acoustic apparatus and its manufacture
JPS5821997A (en) * 1981-07-31 1983-02-09 Pioneer Electronic Corp Speaker diaphragm

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2302564A1 (en) * 1973-01-19 1974-07-25 Bayer Ag METHOD FOR MANUFACTURING POLYURETHANE ELASTOMERS
DE2842806A1 (en) * 1978-09-30 1980-04-10 Bayer Ag METHOD FOR PRODUCING POLYURETHANE ELASTOMERS
DE3521845A1 (en) * 1985-06-19 1987-01-02 Martin Stute Electrodynamic loudspeaker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11800287B2 (en) 2018-06-15 2023-10-24 Goertek Inc. Speaker diaphragm and speaker
US11825285B2 (en) 2018-06-15 2023-11-21 Goetek Inc. Speaker diaphragm and speaker

Also Published As

Publication number Publication date
US5056617A (en) 1991-10-15
DE3831706A1 (en) 1990-03-22
EP0360061A2 (en) 1990-03-28
JPH02119500A (en) 1990-05-07

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