GB998986A - Loudspeaker structure - Google Patents

Loudspeaker structure

Info

Publication number
GB998986A
GB998986A GB33327/62A GB3332762A GB998986A GB 998986 A GB998986 A GB 998986A GB 33327/62 A GB33327/62 A GB 33327/62A GB 3332762 A GB3332762 A GB 3332762A GB 998986 A GB998986 A GB 998986A
Authority
GB
United Kingdom
Prior art keywords
magnet
loud
recesses
frame
speaker
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
GB33327/62A
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.)
ALDO LUDOVICO COEN
Original Assignee
ALDO LUDOVICO COEN
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 ALDO LUDOVICO COEN filed Critical ALDO LUDOVICO COEN
Publication of GB998986A publication Critical patent/GB998986A/en
Expired 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
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • H04R31/006—Interconnection of transducer parts
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/34—Directing or guiding sound by means of a phase plug
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H04R2400/11—Aspects regarding the frame of loudspeaker transducers
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

998,986. Loud-speakers. A. L. COEN. Aug. 30, 1962 [Sept. 6, 1961], No. 33327/62. Heading H4J. In a loud-speaker the magnet housing is secured to the frame by a coupling which permits separation and reconnection of the parts by a limited rotation. As shown, Fig. 5, the permanent magnet of a moving coil loud-speaker comprises a core 36 secured in a pot 16 by cementing or crimping the closed end 42 of pot 16. The open end 60 of pot 16 is inserted in a circular aperture 34 in the frame 14 of the loud-speaker. Four recesses 64 are provided in the edge of aperture 34, Fig. 8, and end 60 is staked between recesses 64 to form projections 64 which hold the pit 16 in place, frame 14 being gripped between shoulder 22 and projections 64. The rest of the loud-speaker is now assembled, the magnet magnetized and the assembly tested. If its operation is unsatisfactory, due to metal particles in the magnet air gap, the magnet is demagnetized and then removed from the frame by twisting it until projections 64 are aligned with recesses 62. The magnet is then cleaned and reassembled by inserting the projections 64 in the recesses 62 and rotating the magnet to its original position.
GB33327/62A 1961-09-06 1962-08-30 Loudspeaker structure Expired GB998986A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US136361A US3133162A (en) 1961-09-06 1961-09-06 Loud speaker structure

Publications (1)

Publication Number Publication Date
GB998986A true GB998986A (en) 1965-07-21

Family

ID=22472515

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33327/62A Expired GB998986A (en) 1961-09-06 1962-08-30 Loudspeaker structure

Country Status (2)

Country Link
US (1) US3133162A (en)
GB (1) GB998986A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3466405A (en) * 1965-12-21 1969-09-09 Gen Electric Permanent magnet basket assembly for a speaker
JPS5853299A (en) * 1981-09-25 1983-03-29 Seiko Instr & Electronics Ltd Dynamic speaker
US5133018A (en) * 1990-01-18 1992-07-21 Ford Motor Company Audio speaker connector employing concentrically oriented speaker contacts
US9154864B1 (en) * 2014-04-30 2015-10-06 Harman International Industries, Inc. Speaker assembly
US9723410B2 (en) 2014-07-08 2017-08-01 Harman International Industries, Incorporated Speaker assembly

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB357230A (en) * 1930-06-19 1931-09-21 Standard Telephones Cables Ltd Improvements in or relating to loudspeakers
US2025127A (en) * 1934-09-01 1935-12-24 Fox Sound Equipment Corp Electrodynamic speaker unit
GB673939A (en) * 1947-08-27 1952-06-18 Magnavox Australia Pty Ltd Improvements in loud speakers
US2894182A (en) * 1955-10-19 1959-07-07 Gen Electric Electro-acoustic transducer
DE1085191B (en) * 1958-12-12 1960-07-14 Isophon Werke G M B H Magnet system for speakers

Also Published As

Publication number Publication date
US3133162A (en) 1964-05-12

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