EP0685979A3 - Centering diaphragm. - Google Patents

Centering diaphragm. Download PDF

Info

Publication number
EP0685979A3
EP0685979A3 EP95107546A EP95107546A EP0685979A3 EP 0685979 A3 EP0685979 A3 EP 0685979A3 EP 95107546 A EP95107546 A EP 95107546A EP 95107546 A EP95107546 A EP 95107546A EP 0685979 A3 EP0685979 A3 EP 0685979A3
Authority
EP
European Patent Office
Prior art keywords
centering diaphragm
centering
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.)
Withdrawn
Application number
EP95107546A
Other languages
German (de)
French (fr)
Other versions
EP0685979A2 (en
Inventor
Stefan Geisenberger
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.)
Harman Audio Electronic Systems GmbH
Original Assignee
Nokia Technology GmbH
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
Priority claimed from DE4421418A external-priority patent/DE4421418A1/en
Application filed by Nokia Technology GmbH filed Critical Nokia Technology GmbH
Publication of EP0685979A2 publication Critical patent/EP0685979A2/en
Publication of EP0685979A3 publication Critical patent/EP0685979A3/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Withdrawn legal-status Critical Current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; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • 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
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/041—Centering
    • H04R9/043—Inner suspension or damper, e.g. spider

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
EP95107546A 1994-06-01 1995-05-18 Centering diaphragm. Withdrawn EP0685979A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4419311 1994-06-01
DE4419311 1994-06-01
DE4421418A DE4421418A1 (en) 1994-06-01 1994-06-18 Centering membrane
DE4421418 1994-06-18

Publications (2)

Publication Number Publication Date
EP0685979A2 EP0685979A2 (en) 1995-12-06
EP0685979A3 true EP0685979A3 (en) 1997-04-23

Family

ID=25937111

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95107546A Withdrawn EP0685979A3 (en) 1994-06-01 1995-05-18 Centering diaphragm.

Country Status (3)

Country Link
US (1) US5729616A (en)
EP (1) EP0685979A3 (en)
JP (1) JPH0851694A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT412602B (en) * 1999-09-23 2005-04-25 Akg Acoustics Gmbh ELECTRIC ACOUSTIC CONVERTER ACCORDING TO THE ELECTRODYNAMIC PRINCIPLE
US6567528B1 (en) 1999-11-18 2003-05-20 Harman International Industries, Incorporated Offset apex spider
US6351544B1 (en) 1999-12-10 2002-02-26 Harman International Industries Incorporated Regressively hinged spider
US20050185816A1 (en) * 2002-10-16 2005-08-25 Roark Richard S. Loudspeaker driver having a removable diaphragm assembly, parts kit and method for rebuilding a loudspeaker driver in the field
JP2005328336A (en) * 2004-05-14 2005-11-24 Pioneer Electronic Corp Damper for loudspeaker device, loudspeaker device using its damper, and manufacturing method for loudspeaker device
JP4952211B2 (en) * 2006-11-22 2012-06-13 コスモギア株式会社 Bone conduction earphone
EP2306753A4 (en) * 2008-07-30 2012-11-28 Pioneer Corp Speaker device
JP2011166335A (en) * 2010-02-08 2011-08-25 Panasonic Corp Speaker
CN101954537B (en) * 2010-04-19 2013-07-03 瑞声声学科技(深圳)有限公司 Welding method of sounding device
GB2518660A (en) * 2013-09-27 2015-04-01 Pss Belgium Nv Loudspeaker

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB635024A (en) * 1947-08-25 1950-03-29 Goodmans Ind Ltd Improvements in or relating to loud speakers
US4235302A (en) * 1977-03-15 1980-11-25 Kenkichi Tsukamoto Loudspeaker
GB1586896A (en) * 1976-09-24 1981-03-25 Sansui Electric Co Diaphragm support for a cone type loudspeaker
DE3037161A1 (en) * 1979-10-01 1981-04-09 James B. Lansing Sound of Delaware Inc., Chicago, Ill. Pressed loudspeaker membrane - has suspension ring with alternately protruding and receding pyramid impressions (NL 3.4.81)
JPS58131897A (en) * 1982-02-01 1983-08-05 Nhk Spring Co Ltd Louspeaker
DE3620889A1 (en) * 1986-06-21 1987-12-23 Electronic Werke Deutschland Loudspeaker
FR2668018A1 (en) * 1990-10-12 1992-04-17 Cabasse Kergonan Sa Method of manufacturing the moving assembly of an electrodynamic loudspeaker, and corresponding moving assembly

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE591586C (en) * 1930-12-20 1934-10-12 Telefunken Gmbh Centering device for the conical membrane of electrodynamic loudspeakers
US3925626A (en) * 1974-02-22 1975-12-09 Jr Robert John Stallings Dynamic speaker having dome diaphragm and basket frequency
GB1471297A (en) * 1974-12-23 1977-04-21 Foster Electric Co Ltd Electrodynamic type electroacoustic transducer
NL7703232A (en) * 1977-03-25 1978-09-27 Philips Nv OPTICAL SCANNER.
DE2900427B1 (en) * 1979-01-08 1979-08-02 Licentia Gmbh Dynamic transducer with a voice coil in an air gap filled with a magnetic fluid
SU888337A1 (en) * 1979-09-21 1981-12-07 Институт Тепломассообмена Им.А.В.Лыкова Ан Бсср Composition for filling magnetic circuit gap of dynamic loudspeaker
NL7908896A (en) * 1979-12-11 1981-07-01 Philips Nv A MECHANICAL FILTER FOR AN ELECTRODYNAMIC CONVERTER.
NL8200416A (en) * 1982-02-04 1983-09-01 Philips Nv FLAT MEMBRANE CONVERTER AND METHOD FOR MAKING SUCH A CONVERTER
SU1275791A1 (en) * 1984-06-04 1986-12-07 Государственный Союзный Научно-Исследовательский Институт Радиовещательного Приема И Акустики Им.А.С.Попова Dynamic loudspeaker
DE3609832A1 (en) * 1986-03-22 1987-09-24 Electronic Werke Deutschland Loudspeaker
US4727586A (en) * 1986-07-14 1988-02-23 Johnson Charles A High fidelity speaker system and assembly
US4807295A (en) * 1987-08-18 1989-02-21 Dumbroski And Hanson Industrial Designs, Inc. Loudspeaker
US4860370A (en) * 1988-02-12 1989-08-22 Gregory Grosbard Magnetically suspended acoustical speaker
DE3821166A1 (en) * 1988-06-23 1989-12-28 Electronic Werke Deutschland PASSIVE SPEAKER BOX FOR A TELEVISION RECEIVER
DE3929266C1 (en) * 1989-09-02 1991-01-03 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De
SU1760647A1 (en) * 1990-11-19 1992-09-07 Всесоюзный научно-исследовательский институт радиовещательного приема и акустики им.А.С.Попова Electrodynamic loudspeaker
DE9109452U1 (en) * 1991-07-31 1991-10-17 Nokia Unterhaltungselektronik (Deutschland) GmbH, 7530 Pforzheim Cone speaker
DE4419249A1 (en) * 1994-06-01 1995-12-07 Nokia Deutschland Gmbh speaker
DE4419312A1 (en) * 1994-06-01 1995-12-07 Nokia Deutschland Gmbh speaker

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB635024A (en) * 1947-08-25 1950-03-29 Goodmans Ind Ltd Improvements in or relating to loud speakers
GB1586896A (en) * 1976-09-24 1981-03-25 Sansui Electric Co Diaphragm support for a cone type loudspeaker
US4235302A (en) * 1977-03-15 1980-11-25 Kenkichi Tsukamoto Loudspeaker
DE3037161A1 (en) * 1979-10-01 1981-04-09 James B. Lansing Sound of Delaware Inc., Chicago, Ill. Pressed loudspeaker membrane - has suspension ring with alternately protruding and receding pyramid impressions (NL 3.4.81)
JPS58131897A (en) * 1982-02-01 1983-08-05 Nhk Spring Co Ltd Louspeaker
DE3620889A1 (en) * 1986-06-21 1987-12-23 Electronic Werke Deutschland Loudspeaker
FR2668018A1 (en) * 1990-10-12 1992-04-17 Cabasse Kergonan Sa Method of manufacturing the moving assembly of an electrodynamic loudspeaker, and corresponding moving assembly

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 007, no. 243 (E - 207) 28 October 1983 (1983-10-28) *

Also Published As

Publication number Publication date
JPH0851694A (en) 1996-02-20
US5729616A (en) 1998-03-17
EP0685979A2 (en) 1995-12-06

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