DE69808799D1 - SPEAKER WITH MOVABLE COIL - Google Patents

SPEAKER WITH MOVABLE COIL

Info

Publication number
DE69808799D1
DE69808799D1 DE69808799T DE69808799T DE69808799D1 DE 69808799 D1 DE69808799 D1 DE 69808799D1 DE 69808799 T DE69808799 T DE 69808799T DE 69808799 T DE69808799 T DE 69808799T DE 69808799 D1 DE69808799 D1 DE 69808799D1
Authority
DE
Germany
Prior art keywords
magnetic body
frame
diaphragm
speaker
movable coil
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 - Fee Related
Application number
DE69808799T
Other languages
German (de)
Other versions
DE69808799T2 (en
Inventor
Summa Francesco Di
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.)
MACKLAINE DI FRANCESCO DI SUMM
Original Assignee
MACKLAINE DI FRANCESCO DI SUMM
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11342632&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69808799(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by MACKLAINE DI FRANCESCO DI SUMM filed Critical MACKLAINE DI FRANCESCO DI SUMM
Publication of DE69808799D1 publication Critical patent/DE69808799D1/en
Application granted granted Critical
Publication of DE69808799T2 publication Critical patent/DE69808799T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/041—Centering
    • 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
    • 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
    • H04R9/025—Magnetic circuit

Abstract

A loudspeaker (1) having a substantially cup-shaped frame (2); a magnetic body (3) extending inside the frame (2) and coaxial with a longitudinal axis (A) of the frame (2); a substantially truncated-cone-shaped diaphragm (4) fitted in axially-sliding manner to the magnetic body (3); and an actuating coil (8) fitted in axially-sliding manner to the magnetic body (3) and integral with the diaphragm (4); the loudspeaker (1) also having a first annular centering and damping membrane (14) connecting the magnetic body (3) to the diaphragm (4); and a second annular centering and damping membrane (17) connecting the coil (8) to the lateral wall (18) of the frame (2).
DE69808799T 1997-11-06 1998-11-06 SPEAKER WITH MOVABLE COIL Expired - Fee Related DE69808799T2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT97BO000658A IT1296539B1 (en) 1997-11-06 1997-11-06 SPEAKER WITH MOBILE COIL.
PCT/IT1998/000310 WO1999025149A2 (en) 1997-11-06 1998-11-06 Moving-coil loudspeaker

Publications (2)

Publication Number Publication Date
DE69808799D1 true DE69808799D1 (en) 2002-11-21
DE69808799T2 DE69808799T2 (en) 2003-07-03

Family

ID=11342632

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69808799T Expired - Fee Related DE69808799T2 (en) 1997-11-06 1998-11-06 SPEAKER WITH MOVABLE COIL

Country Status (11)

Country Link
EP (1) EP1040727B1 (en)
JP (1) JP2001523079A (en)
KR (1) KR20010031843A (en)
CN (1) CN1282502A (en)
AT (1) ATE226384T1 (en)
AU (1) AU1257999A (en)
CA (1) CA2309209A1 (en)
DE (1) DE69808799T2 (en)
ES (1) ES2186239T3 (en)
IT (1) IT1296539B1 (en)
WO (1) WO1999025149A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009024566A1 (en) * 2009-06-08 2010-12-09 Norman Gerkinsmeyer center bead
GB2480058A (en) * 2010-05-04 2011-11-09 Tzu-Chung Chang Inner spider or damper arrangement for a loudspeaker

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4239943A (en) 1977-11-17 1980-12-16 Cerwin Vega, Inc. Adjustable dual spider for a loudspeaker
EP0039740B1 (en) * 1979-11-09 1985-06-26 Matsushita Electric Industrial Co., Ltd. Loud-speaker
JPS5838097A (en) * 1981-08-28 1983-03-05 Hitachi Ltd Loudspeaker system
NL8200416A (en) * 1982-02-04 1983-09-01 Philips Nv FLAT MEMBRANE CONVERTER AND METHOD FOR MAKING SUCH A CONVERTER
US4737992A (en) 1985-11-15 1988-04-12 Bose Corporation Compact electroacoustical transducer with spider covering rear basket opening
JPH04500890A (en) * 1988-10-03 1992-02-13 ハーマン　インターナショナル　インダストリーズ，インコーポレイテッド Structure of electrodynamic converter
DE4021000A1 (en) * 1990-07-02 1992-01-16 Hubertus Doepke HI=FI loudspeaker with sprung coupling member - has mechanical oscillation element controlled by movement of electrical conductor within magnetic field
DE4130460A1 (en) * 1991-09-13 1993-03-18 Nokia Deutschland Gmbh ELECTROMAGNETIC CONVERTER

Also Published As

Publication number Publication date
ITBO970658A0 (en) 1997-11-06
ES2186239T3 (en) 2003-05-01
DE69808799T2 (en) 2003-07-03
IT1296539B1 (en) 1999-07-09
WO1999025149A3 (en) 1999-07-22
ITBO970658A1 (en) 1999-05-06
EP1040727B1 (en) 2002-10-16
ATE226384T1 (en) 2002-11-15
JP2001523079A (en) 2001-11-20
WO1999025149A2 (en) 1999-05-20
CN1282502A (en) 2001-01-31
EP1040727A2 (en) 2000-10-04
CA2309209A1 (en) 1999-05-20
AU1257999A (en) 1999-05-31
KR20010031843A (en) 2001-04-16

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8339 Ceased/non-payment of the annual fee