JPS5518181A - Speaker diaphragm - Google Patents

Speaker diaphragm

Info

Publication number
JPS5518181A
JPS5518181A JP9192178A JP9192178A JPS5518181A JP S5518181 A JPS5518181 A JP S5518181A JP 9192178 A JP9192178 A JP 9192178A JP 9192178 A JP9192178 A JP 9192178A JP S5518181 A JPS5518181 A JP S5518181A
Authority
JP
Japan
Prior art keywords
diaphragm
plate
coil
giving
magnetic material
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.)
Pending
Application number
JP9192178A
Other languages
Japanese (ja)
Inventor
Takafumi Ueno
Tatsuo Fukuyama
Kenichi Takahashi
Koshin Shimada
Yoshiaki Harada
Shinichiro Ishii
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP9192178A priority Critical patent/JPS5518181A/en
Publication of JPS5518181A publication Critical patent/JPS5518181A/en
Pending 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
    • H04R7/125—Non-planar diaphragms or cones comprising a plurality of sections or layers comprising a plurality of superposed layers in contact

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

PURPOSE:To lessen the distortion at the high band by forming the diaphragm by giving the surface junction of the flat-panel type cone paper to the folded thin plate and then increasing the rigidity of the sliding plate itself. CONSTITUTION:Permanent magnet 3 is provided on the upper surface of supporter 1 made of the magnetic material containing center pole 2 protruded at the center part, and plate 4 made of the magnetic material is installed on the surface of magnet 3. At the same time, coil 6 is provided within the space formed between plate 4 and pole 2, and damper 9 is installed between coil bobbin 7 and frame 8 to support coil 6 movably. Then diaphragm 11 is installed with one end attached to bobbin 7 and the other end attached to frame 8 via end part 12. In this case, diaphragm 11 is formed by giving the surface junction of flat-panel type cone paper 11B and 11C to the both surfaces of folded thin plate 11A. As a result, the weight of diaphragm 11 can be reduced with the rigidity increased, thus decreasing the distortion occurring at the high band.
JP9192178A 1978-07-26 1978-07-26 Speaker diaphragm Pending JPS5518181A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9192178A JPS5518181A (en) 1978-07-26 1978-07-26 Speaker diaphragm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9192178A JPS5518181A (en) 1978-07-26 1978-07-26 Speaker diaphragm

Publications (1)

Publication Number Publication Date
JPS5518181A true JPS5518181A (en) 1980-02-08

Family

ID=14040038

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9192178A Pending JPS5518181A (en) 1978-07-26 1978-07-26 Speaker diaphragm

Country Status (1)

Country Link
JP (1) JPS5518181A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57174998A (en) * 1981-04-20 1982-10-27 Matsushita Electric Ind Co Ltd Diaphragm for speaker
JPS60176400A (en) * 1984-02-22 1985-09-10 Matsushita Electric Ind Co Ltd Flat speaker
JPH04135094U (en) * 1991-06-04 1992-12-16 ツサオ，イエ−ミン New structure of triangular horizontal ripple diffusion type resonator plate

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57174998A (en) * 1981-04-20 1982-10-27 Matsushita Electric Ind Co Ltd Diaphragm for speaker
JPS60176400A (en) * 1984-02-22 1985-09-10 Matsushita Electric Ind Co Ltd Flat speaker
JPH04135094U (en) * 1991-06-04 1992-12-16 ツサオ，イエ−ミン New structure of triangular horizontal ripple diffusion type resonator plate

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