JPS5546664A - Diaphragm for plate speaker - Google Patents

Diaphragm for plate speaker

Info

Publication number
JPS5546664A
JPS5546664A JP12028778A JP12028778A JPS5546664A JP S5546664 A JPS5546664 A JP S5546664A JP 12028778 A JP12028778 A JP 12028778A JP 12028778 A JP12028778 A JP 12028778A JP S5546664 A JPS5546664 A JP S5546664A
Authority
JP
Japan
Prior art keywords
diaphragm
rigidity
plate speaker
strengthening
graphite
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
JP12028778A
Other languages
Japanese (ja)
Inventor
Kunihiko Shimada
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic Corp
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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP12028778A priority Critical patent/JPS5546664A/en
Publication of JPS5546664A publication Critical patent/JPS5546664A/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
    • H04R7/04—Plane diaphragms
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers
    • H04R7/10—Plane diaphragms comprising a plurality of sections or layers comprising 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 expand a piston motion region by increasing primary resonance frequency by strengthening the rigidity of the entire diaphragm, by forming a surface material of a material composed principally of carbon. CONSTITUTION:On both the sides of hollow diaphragm 1 using a coil in a honeycomb shape, etc., surface materials 2 and 3 are bonded which are a kneaded mixture of plastics such as vinyl chloride and graphite. Consequently, the rigidity can be increased several times as high as that of aluminium.
JP12028778A 1978-09-29 1978-09-29 Diaphragm for plate speaker Pending JPS5546664A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12028778A JPS5546664A (en) 1978-09-29 1978-09-29 Diaphragm for plate speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12028778A JPS5546664A (en) 1978-09-29 1978-09-29 Diaphragm for plate speaker

Publications (1)

Publication Number Publication Date
JPS5546664A true JPS5546664A (en) 1980-04-01

Family

ID=14782497

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12028778A Pending JPS5546664A (en) 1978-09-29 1978-09-29 Diaphragm for plate speaker

Country Status (1)

Country Link
JP (1) JPS5546664A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02179099A (en) * 1988-12-28 1990-07-12 Matsushita Electric Ind Co Ltd Diaphragm for speaker
US5701359A (en) * 1995-04-06 1997-12-23 Precision Power Flat-panel speaker
US5780168A (en) * 1994-04-28 1998-07-14 Sumitomo Chemical Company, Limited Polypropylene composition for laminated and oriented film and laminated and oriented film thereof
US6097829A (en) * 1995-04-06 2000-08-01 Precision Power, Inc. Fiber-honeycomb-fiber sandwich speaker diaphragm and method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5472029U (en) * 1977-10-31 1979-05-22

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5472029U (en) * 1977-10-31 1979-05-22

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02179099A (en) * 1988-12-28 1990-07-12 Matsushita Electric Ind Co Ltd Diaphragm for speaker
US5780168A (en) * 1994-04-28 1998-07-14 Sumitomo Chemical Company, Limited Polypropylene composition for laminated and oriented film and laminated and oriented film thereof
US5701359A (en) * 1995-04-06 1997-12-23 Precision Power Flat-panel speaker
US6097829A (en) * 1995-04-06 2000-08-01 Precision Power, Inc. Fiber-honeycomb-fiber sandwich speaker diaphragm and method

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