DE3721068C2 - - Google Patents

Info

Publication number
DE3721068C2
DE3721068C2 DE19873721068 DE3721068A DE3721068C2 DE 3721068 C2 DE3721068 C2 DE 3721068C2 DE 19873721068 DE19873721068 DE 19873721068 DE 3721068 A DE3721068 A DE 3721068A DE 3721068 C2 DE3721068 C2 DE 3721068C2
Authority
DE
Germany
Prior art keywords
membrane
plate
wall thickness
membrane system
edge
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.)
Expired
Application number
DE19873721068
Other languages
German (de)
English (en)
Other versions
DE3721068A1 (de
Inventor
Helmut Dipl.-Ing. 3340 Wolfenbuettel De Krueger
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.)
Bosch Telecom GmbH
Original Assignee
ANT Nachrichtentechnik 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
Application filed by ANT Nachrichtentechnik GmbH filed Critical ANT Nachrichtentechnik GmbH
Publication of DE3721068A1 publication Critical patent/DE3721068A1/de
Application granted granted Critical
Publication of DE3721068C2 publication Critical patent/DE3721068C2/de
Granted 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
    • H04R7/12—Non-planar diaphragms or cones
    • H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
DE19873721068 1986-07-04 1987-06-26 Membransystem mit rotationssymmetrischer, biegesteifer membran Granted DE3721068A1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3622587 1986-07-04
DE8617947 1986-07-04
DE8617918 1986-07-04
DE8707994 1987-06-05

Publications (2)

Publication Number Publication Date
DE3721068A1 DE3721068A1 (de) 1988-01-07
DE3721068C2 true DE3721068C2 (https=) 1989-06-15

Family

ID=27433635

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19873721068 Granted DE3721068A1 (de) 1986-07-04 1987-06-26 Membransystem mit rotationssymmetrischer, biegesteifer membran

Country Status (1)

Country Link
DE (1) DE3721068A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4007656C1 (en) * 1990-03-10 1991-02-28 Ant Nachrichtentechnik Gmbh, 7150 Backnang, De Rotationally symmetrical loudspeaker membrane - acts as piston oscillator, its inner edge providing fixing zone for electromagnetic drive acting along membrane axis

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT136327B (de) * 1932-04-25 1934-01-25 Jesse Barnum Hawley Membran und Verfahren zu ihrer Herstellung.
US3708035A (en) * 1967-11-30 1973-01-02 Nippon Musical Instruments Mfg Diaphragm for loudspeakers
DE1912059C3 (de) * 1969-03-10 1974-08-22 Nippon Gakki Seizo K.K., Hamamatsu, Shizuoka (Japan) Membran für Flachlautsprecher
DE2651026A1 (de) * 1976-11-09 1978-05-18 Helmut Dipl Ing Krueger Verfahren zur bemessung des radialen wandstaerkeverlaufes einer kreisfoermigen membran fuer akustische wandler
JPS5379525A (en) * 1976-12-23 1978-07-14 Sony Corp Compound diaphtagm for speakers
DE3018659A1 (de) * 1980-05-16 1981-11-26 Friedrich-Wilhelm Dr. Bracht Lautsprechermembran
DE3123098C2 (de) * 1981-06-11 1983-06-01 Martin 4600 Dortmund Stute Membran für elektroakustische Wandlersysteme

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4007656C1 (en) * 1990-03-10 1991-02-28 Ant Nachrichtentechnik Gmbh, 7150 Backnang, De Rotationally symmetrical loudspeaker membrane - acts as piston oscillator, its inner edge providing fixing zone for electromagnetic drive acting along membrane axis

Also Published As

Publication number Publication date
DE3721068A1 (de) 1988-01-07

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee