EP0360061A3 - Membran für Lautsprecher - Google Patents

Membran für Lautsprecher 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Withdrawn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
English (en)
French (fr)
Other versions
EP0360061A2 (de
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/de
Publication of EP0360061A3 publication Critical patent/EP0360061A3/de
Withdrawn legal-status Critical Current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
    • H04R7/02—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; 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
    • H04R7/127—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.
EP19890116256 1988-09-17 1989-09-02 Membran für Lautsprecher Withdrawn EP0360061A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3831706 1988-09-17
DE3831706A DE3831706A1 (de) 1988-09-17 1988-09-17 Membran fuer lautsprecher

Publications (2)

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

Family

ID=6363191

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890116256 Withdrawn EP0360061A3 (de) 1988-09-17 1989-09-02 Membran für Lautsprecher

Country Status (4)

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

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4031742A1 (de) * 1990-10-06 1992-04-09 Nokia Unterhaltungselektronik Kalotten-hochton-lautsprecher
JP2005252922A (ja) * 2004-03-08 2005-09-15 Matsushita Electric Ind Co Ltd スピーカ及びその製造方法
EP2474171B1 (de) * 2007-07-25 2014-11-19 Sinar Baja Electric Ltd. Ringförmige membran für einen elektroakustischen lautsprecher
CN108551642B (zh) 2018-06-15 2020-09-22 歌尔股份有限公司 扬声器振膜以及扬声器
CN108668205B (zh) 2018-06-15 2020-09-22 歌尔股份有限公司 扬声器振膜以及扬声器
CN108551641B (zh) * 2018-06-15 2019-08-20 歌尔股份有限公司 扬声器

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2302564A1 (de) * 1973-01-19 1974-07-25 Bayer Ag Verfahren zur herstellung von polyurethan-elastomeren
DE2842806A1 (de) * 1978-09-30 1980-04-10 Bayer Ag Verfahren zur herstellung von polyurethan-elastomeren
DE3521845A1 (de) * 1985-06-19 1987-01-02 Martin Stute Elektrodynamischer lautsprecher

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE623239A (de) * 1961-10-04
US3285364A (en) * 1965-06-01 1966-11-15 Ling Temco Vought Inc Loudspeaker construction
AT274080B (de) * 1967-07-05 1969-09-10 Philips Nv Schallwandler mit einer Schaumstoffmembran
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 (ja) * 1981-07-31 1983-02-09 Pioneer Electronic Corp スピ−カ用振動板

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2302564A1 (de) * 1973-01-19 1974-07-25 Bayer Ag Verfahren zur herstellung von polyurethan-elastomeren
DE2842806A1 (de) * 1978-09-30 1980-04-10 Bayer Ag Verfahren zur herstellung von polyurethan-elastomeren
DE3521845A1 (de) * 1985-06-19 1987-01-02 Martin Stute Elektrodynamischer lautsprecher

Also Published As

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

Similar Documents

Publication Publication Date Title
NO871596D0 (no) Sammensatt membran.
DE3682144D1 (de) Halbdurchlaessige zusammengesetzte membran.
IT1062045B (it) Procedimento per la estrusione di pellicole elastomere termoplastiche in particolare per la produzione di nastri e fogli adesivi
IT1079471B (it) Procedimento per la preparazione di membrane semipermeabili e prodotto ottenuto
DK344285D0 (da) Sammensat membran
MX161014A (es) Mejoras en transductor de presion
IT1076699B (it) Foglio o lamina polimerica preformata,utilizzabile per la preparazione di stratificati trasparenti,in particolare parabrezza ed altri manufatti per usi diversi,e stratificati includenti tale foglio,nonche' procedimento per la sua preparazione
FR2345048A1 (fr) Membrane de transducteur electro-acoustique
IT1078944B (it) Membrana di dialisi per emodialisi e procedimento per la sua produzione
FI842115A0 (fi) Pressparti med separata pressnyp i en pappersmaskin.
AU505290B2 (en) Oriented sheets of thermoplastic resin
DE3579758D1 (de) Verbundfilme und ihre herstellung.
IT8048528A0 (it) Procedimento per la produzione di membrane per ultrafiltrazione costituite da poliuretani lineari e prodotto ottenuto
DE68912624D1 (de) Membran-Verfahren und System für die Herstellung von Stickstoff.
IT1086760B (it) Procedimento per la produzione di 2,2'-4,4',6,6'-esanitro-stilbene e prodotto ottenuto
EP0360061A3 (de) Membran für Lautsprecher
IT1066606B (it) Procedimento per la produzione di membrane per ultrafiltrazione accoppiate con enzima e membrana ottenuta
IT1085160B (it) Membrane semipermeabili e procedimento per la loro produzione
DK193787D0 (da) Sammensat membran
DE68918353D1 (de) Herstellung von geschäumten Polymerstrukturen.
ES489207A0 (es) Procedimiento para la fabricacion de una estructura laminada de piel fina reforzada con espuma polimerica.
IT1101443B (it) Materiale in foglio con le caratteristiche di pelle scamosciata e procedimento per la sua produzione
DE3775898D1 (de) Dispersionen und die herstellung von schaeumen daraus.
DE68918648D1 (de) Herstellung von geschäumten Polymerstrukturen.
IT1170741B (it) Perfezionamento nelle membrane per plasmaferesi e procedimento per la loro produzione

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19890902

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB IT NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB IT NL

17Q First examination report despatched

Effective date: 19930322

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19930521