JPS54107333A - Speaker diaphragm - Google Patents

Speaker diaphragm

Info

Publication number
JPS54107333A
JPS54107333A JP1508978A JP1508978A JPS54107333A JP S54107333 A JPS54107333 A JP S54107333A JP 1508978 A JP1508978 A JP 1508978A JP 1508978 A JP1508978 A JP 1508978A JP S54107333 A JPS54107333 A JP S54107333A
Authority
JP
Japan
Prior art keywords
porous material
metal porous
sealer
air permeable
central part
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
JP1508978A
Other languages
Japanese (ja)
Inventor
Ryoichi Kawasaki
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.)
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Original Assignee
Tokyo Sanyo Electric Co Ltd
Sanyo Electric 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 Tokyo Sanyo Electric Co Ltd, Sanyo Electric Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP1508978A priority Critical patent/JPS54107333A/en
Publication of JPS54107333A publication Critical patent/JPS54107333A/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; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms

Landscapes

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

Abstract

PURPOSE:To enable the features of metal porous material to be sufficiently exhibited by providing non-air permeable sealer on the surface of the metal porous material formed to a specific shape. CONSTITUTION:A vibrator body 1 composed of a metal porous material is provided with a hole 3 at its central part into which a voice coil bobbin is inserted and it is constituted as a whole in a truncated conical shape so that the thickness thereof decreases as it goes toward the circumferential edge part from the central part. A sealer 2 composed of a non-air permeable thin plate such as of Al foil is provided on the surface thereof in order to clog the vent holes of the body 1. Thereby, the rigidity of the body 1 is homogeneously increased.
JP1508978A 1978-02-09 1978-02-09 Speaker diaphragm Pending JPS54107333A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1508978A JPS54107333A (en) 1978-02-09 1978-02-09 Speaker diaphragm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1508978A JPS54107333A (en) 1978-02-09 1978-02-09 Speaker diaphragm

Publications (1)

Publication Number Publication Date
JPS54107333A true JPS54107333A (en) 1979-08-23

Family

ID=11879108

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1508978A Pending JPS54107333A (en) 1978-02-09 1978-02-09 Speaker diaphragm

Country Status (1)

Country Link
JP (1) JPS54107333A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5668886A (en) * 1993-03-30 1997-09-16 Kabushiki Kaisha Kenwood Loudspeaker structure
JP2013132086A (en) * 2011-11-07 2013-07-04 Goki Ukita Speaker device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52133209A (en) * 1976-04-30 1977-11-08 Sumitomo Electric Ind Ltd Electrokinetic-type electricity/sound converter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52133209A (en) * 1976-04-30 1977-11-08 Sumitomo Electric Ind Ltd Electrokinetic-type electricity/sound converter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5668886A (en) * 1993-03-30 1997-09-16 Kabushiki Kaisha Kenwood Loudspeaker structure
JP2013132086A (en) * 2011-11-07 2013-07-04 Goki Ukita Speaker device

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