JPS5575396A - Speaker diaphragm - Google Patents

Speaker diaphragm

Info

Publication number
JPS5575396A
JPS5575396A JP15023378A JP15023378A JPS5575396A JP S5575396 A JPS5575396 A JP S5575396A JP 15023378 A JP15023378 A JP 15023378A JP 15023378 A JP15023378 A JP 15023378A JP S5575396 A JPS5575396 A JP S5575396A
Authority
JP
Japan
Prior art keywords
foam
cloth
pressure
enhance
fused
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
JP15023378A
Other languages
Japanese (ja)
Inventor
Masaaki Kimura
Takashi Yasunaka
Shinichi Oki
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 JP15023378A priority Critical patent/JPS5575396A/en
Publication of JPS5575396A publication Critical patent/JPS5575396A/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
    • 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 decrease the air leak as well as to enhance both the sound pressure and distortion characteristics by pressure-bonding the soft resin foam possessing the fused film onto the single surface or the upper surface of the substrate cloth. CONSTITUTION:Resin foam 4 composed of the Moltopren or the like is stacked upon substrate cloth 3 which is formed by impregnating the resin such as the phenol or the like into the silk, cotton or other cloth to secure the forming or adhesive properites. Such foam 4 is then put into the metal mold for the heat and pressure processing. Thus cloth 3 is fused to foam 4 to form the domed diaphragm, at the same time film 5 being formed on the surface of foam 4. As a result, the air leak can be reduced greatly to enhance both the sound pressure and distortion properties, thus obtaining a diaphragme featuring the steady quality.
JP15023378A 1978-12-04 1978-12-04 Speaker diaphragm Pending JPS5575396A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15023378A JPS5575396A (en) 1978-12-04 1978-12-04 Speaker diaphragm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15023378A JPS5575396A (en) 1978-12-04 1978-12-04 Speaker diaphragm

Publications (1)

Publication Number Publication Date
JPS5575396A true JPS5575396A (en) 1980-06-06

Family

ID=15492453

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15023378A Pending JPS5575396A (en) 1978-12-04 1978-12-04 Speaker diaphragm

Country Status (1)

Country Link
JP (1) JPS5575396A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6422337B1 (en) * 2000-06-28 2002-07-23 Deccon International Ltd. Loudspeaker with a suspension member made of a laminate

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5554070U (en) * 1978-10-05 1980-04-12

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5554070U (en) * 1978-10-05 1980-04-12

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6422337B1 (en) * 2000-06-28 2002-07-23 Deccon International Ltd. Loudspeaker with a suspension member made of a laminate

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