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JPS54133125A - Diaphragm for speaker - Google Patents

Diaphragm for speaker

Info

Publication number
JPS54133125A
JPS54133125A JP4106178A JP4106178A JPS54133125A JP S54133125 A JPS54133125 A JP S54133125A JP 4106178 A JP4106178 A JP 4106178A JP 4106178 A JP4106178 A JP 4106178A JP S54133125 A JPS54133125 A JP S54133125A
Authority
JP
Japan
Prior art keywords
core material
bonded
foil
long length
diaphragm
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.)
Granted
Application number
JP4106178A
Other languages
Japanese (ja)
Other versions
JPS6057796B2 (en
Inventor
Satoshi Takayama
Kosaku Murata
Mitsuru Yashiro
Nobuhisa Atoji
Katsumasa Sato
Takao Irumano
Hiroyuki Takewa
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 JP4106178A priority Critical patent/JPS6057796B2/en
Publication of JPS54133125A publication Critical patent/JPS54133125A/en
Publication of JPS6057796B2 publication Critical patent/JPS6057796B2/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
    • 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)
  • Laminated Bodies (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

PURPOSE:To obtain a diaphragm for flat plate speakers of light weight, high rigidity and a wide piston region by winding a long length meterial having protrusions to spiral form to form a core material and filling foaming agents in the hollow parts thereof. CONSTITUTION:One of Al foils is bent to triangular continuous crest form and the bottom side of this bent Al foil 1 is bonded to other Al foil 2 by means of epoxy base adhesive agants or the like, thereby forming a long length body 3 having triangular protrusions. This long length material 3 is wound in spiral form or other and is bonded to form a circular core material 4. Al discs 5, 5' are bonded as surface materials to the top and bottom faces of this core material 4. The use of the foils forming boron layer or the like on material of high specific modulus, e.g., Al foil surfaces as the surface material of the core material enables rigidity to be increased further. In addition, filling expandable resins in the hollow parts of the core material enables the internal loss of the diaphragm to be increased and distortion factor to be decreased.
JP4106178A 1978-04-06 1978-04-06 Diaphragm for speaker Expired JPS6057796B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4106178A JPS6057796B2 (en) 1978-04-06 1978-04-06 Diaphragm for speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4106178A JPS6057796B2 (en) 1978-04-06 1978-04-06 Diaphragm for speaker

Publications (2)

Publication Number Publication Date
JPS54133125A true JPS54133125A (en) 1979-10-16
JPS6057796B2 JPS6057796B2 (en) 1985-12-17

Family

ID=12597899

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4106178A Expired JPS6057796B2 (en) 1978-04-06 1978-04-06 Diaphragm for speaker

Country Status (1)

Country Link
JP (1) JPS6057796B2 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56129498A (en) * 1980-03-13 1981-10-09 Matsushita Electric Ind Co Ltd Manufacture for diaphragm plate for speaker
JPS56129497A (en) * 1980-03-13 1981-10-09 Matsushita Electric Ind Co Ltd Diaphragm plate for speaker
US4300655A (en) * 1979-05-31 1981-11-17 Matsushita Electric Industrial Co., Ltd. Acoustic diaphragm for speakers and method of producing the same
JPS57173297A (en) * 1981-04-17 1982-10-25 Trio Kenwood Corp Speaker diaphragm and its manufacture
US5859916A (en) * 1996-07-12 1999-01-12 Symphonix Devices, Inc. Two stage implantable microphone
US6093144A (en) * 1997-12-16 2000-07-25 Symphonix Devices, Inc. Implantable microphone having improved sensitivity and frequency response
EP2387256A1 (en) * 2010-05-14 2011-11-16 DR. KURT MÜLLER GmbH & Co. KG Method for manufacturing a loudspeaker membrane
EP3528510A4 (en) * 2016-10-13 2019-12-25 Panasonic Intellectual Property Management Co., Ltd. FLAT SPEAKER AND DISPLAY DEVICE

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4300655A (en) * 1979-05-31 1981-11-17 Matsushita Electric Industrial Co., Ltd. Acoustic diaphragm for speakers and method of producing the same
JPS56129498A (en) * 1980-03-13 1981-10-09 Matsushita Electric Ind Co Ltd Manufacture for diaphragm plate for speaker
JPS56129497A (en) * 1980-03-13 1981-10-09 Matsushita Electric Ind Co Ltd Diaphragm plate for speaker
JPS57173297A (en) * 1981-04-17 1982-10-25 Trio Kenwood Corp Speaker diaphragm and its manufacture
JPH0237759B2 (en) * 1981-04-17 1990-08-27 Kenwood Corp
US5859916A (en) * 1996-07-12 1999-01-12 Symphonix Devices, Inc. Two stage implantable microphone
US6093144A (en) * 1997-12-16 2000-07-25 Symphonix Devices, Inc. Implantable microphone having improved sensitivity and frequency response
US6422991B1 (en) 1997-12-16 2002-07-23 Symphonix Devices, Inc. Implantable microphone having improved sensitivity and frequency response
US6626822B1 (en) 1997-12-16 2003-09-30 Symphonix Devices, Inc. Implantable microphone having improved sensitivity and frequency response
US7322930B2 (en) 1997-12-16 2008-01-29 Vibrant Med-El Hearing Technology, Gmbh Implantable microphone having sensitivity and frequency response
US7955250B2 (en) 1997-12-16 2011-06-07 Med-El Elektromedizinische Geraete Gmbh Implantable microphone having sensitivity and frequency response
EP2387256A1 (en) * 2010-05-14 2011-11-16 DR. KURT MÜLLER GmbH & Co. KG Method for manufacturing a loudspeaker membrane
EP3528510A4 (en) * 2016-10-13 2019-12-25 Panasonic Intellectual Property Management Co., Ltd. FLAT SPEAKER AND DISPLAY DEVICE

Also Published As

Publication number Publication date
JPS6057796B2 (en) 1985-12-17

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