JPS5453524A - Diaphragm for speakers - Google Patents

Diaphragm for speakers

Info

Publication number
JPS5453524A
JPS5453524A JP11962477A JP11962477A JPS5453524A JP S5453524 A JPS5453524 A JP S5453524A JP 11962477 A JP11962477 A JP 11962477A JP 11962477 A JP11962477 A JP 11962477A JP S5453524 A JPS5453524 A JP S5453524A
Authority
JP
Japan
Prior art keywords
core
plate
heating
speakers
honeycomb core
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
JP11962477A
Other languages
Japanese (ja)
Inventor
Takashi Higaki
Kozo Shimamoto
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP11962477A priority Critical patent/JPS5453524A/en
Publication of JPS5453524A publication Critical patent/JPS5453524A/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
    • H04R7/12—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

Abstract

PURPOSE:To make piston movement region in sound pressure-frequency characteristics large and partial vibration region relatively smooth and yet obviate the production of abnormal sounds by packing high-polymer foaming agents in the space of a honeycomb core. CONSTITUTION:Thermosetting adhesive agents 6, 7 are coated on the bonding face sides of thin plates 3, 4 composed of carbon fiber reinforced epoxy resins which are respectively bonded on both surfaces of a honeycomb core 1 composed of Al foils. A thin plate 4, core 1, soft urethane foam plate 8, thin plate 3 are superposed in a concentrical position on pressing/heating press molds 9, 10 which have conical taper form press faces 11, 12, after which the face 11 is forced down, by which the plate 8 is forced into the hollow part of the core 1. Further, the adhesive agents 6, 7 sets by heating, whereby the integrated diaphragm for speakers may be obtained.
JP11962477A 1977-10-05 1977-10-05 Diaphragm for speakers Pending JPS5453524A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11962477A JPS5453524A (en) 1977-10-05 1977-10-05 Diaphragm for speakers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11962477A JPS5453524A (en) 1977-10-05 1977-10-05 Diaphragm for speakers

Publications (1)

Publication Number Publication Date
JPS5453524A true JPS5453524A (en) 1979-04-26

Family

ID=14766038

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11962477A Pending JPS5453524A (en) 1977-10-05 1977-10-05 Diaphragm for speakers

Country Status (1)

Country Link
JP (1) JPS5453524A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57113695A (en) * 1980-12-29 1982-07-15 Mitsubishi Electric Corp Diaphragm plate for speaker
JPH01221776A (en) * 1989-01-26 1989-09-05 Ricoh Co Ltd Magnetic brush developing device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57113695A (en) * 1980-12-29 1982-07-15 Mitsubishi Electric Corp Diaphragm plate for speaker
JPH01221776A (en) * 1989-01-26 1989-09-05 Ricoh Co Ltd Magnetic brush developing device
JPH0545955B2 (en) * 1989-01-26 1993-07-12 Ricoh Kk

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