JPS57118497A - Speaker diaphragm - Google Patents

Speaker diaphragm

Info

Publication number
JPS57118497A
JPS57118497A JP481881A JP481881A JPS57118497A JP S57118497 A JPS57118497 A JP S57118497A JP 481881 A JP481881 A JP 481881A JP 481881 A JP481881 A JP 481881A JP S57118497 A JPS57118497 A JP S57118497A
Authority
JP
Japan
Prior art keywords
diaphragm
thermosetting resin
speaker diaphragm
mold
main body
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
JP481881A
Other languages
Japanese (ja)
Inventor
Kazuro Okuzawa
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 JP481881A priority Critical patent/JPS57118497A/en
Publication of JPS57118497A publication Critical patent/JPS57118497A/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

Abstract

PURPOSE:To obtain a speaker diaphragm having high rigidity, by impregnating the thermosetting resin into the base material made of the silicon carbide fiber and heat-mold this material. CONSTITUTION:The thermosetting resin 2 such as the epoxy resin, etc. is impregnated into a base material 1 made of the woven or unwoven fabric of silicon carbide fiber. The heat and press-mold is given to these materials to obtain a conical diaphragm main body 3. Then a free edge 4 is stuck to the main body 3 to obtain a speaker diaphragm. Such diaphragm excels in the molding properties and the adhesive properties to the thermosetting resin with a light weight and has the sufficient flexural rigidity and a proper Q value with high rigidity.
JP481881A 1981-01-13 1981-01-13 Speaker diaphragm Pending JPS57118497A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP481881A JPS57118497A (en) 1981-01-13 1981-01-13 Speaker diaphragm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP481881A JPS57118497A (en) 1981-01-13 1981-01-13 Speaker diaphragm

Publications (1)

Publication Number Publication Date
JPS57118497A true JPS57118497A (en) 1982-07-23

Family

ID=11594303

Family Applications (1)

Application Number Title Priority Date Filing Date
JP481881A Pending JPS57118497A (en) 1981-01-13 1981-01-13 Speaker diaphragm

Country Status (1)

Country Link
JP (1) JPS57118497A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6083496A (en) * 1983-10-13 1985-05-11 Pioneer Electronic Corp Diaphragm for speaker
JPS643395U (en) * 1987-06-23 1989-01-10

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5242720A (en) * 1975-10-01 1977-04-02 Foster Denki Kk Oscillation plate for speaker

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5242720A (en) * 1975-10-01 1977-04-02 Foster Denki Kk Oscillation plate for speaker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6083496A (en) * 1983-10-13 1985-05-11 Pioneer Electronic Corp Diaphragm for speaker
JPS643395U (en) * 1987-06-23 1989-01-10

Similar Documents

Publication Publication Date Title
GB1491080A (en) Loudspeakers
ES8107017A1 (en) Water-activated casting material.
FR2475534B1 (en) COMPOSITE STRUCTURE WITH CERAMIC MATERIAL REINFORCED WITH SILICON CARBIDE FIBERS
DK7185D0 (en) FIBER Reinforced Composite Molding Material
NO167753C (en) AIR PERMABLE LIQUID FIBER STRUCTURE AND PROCEDURE FOR ITS MANUFACTURING.
IT7927130A0 (en) PROCEDURE FOR THE MANUFACTURE OF THERMOPLASTIC RESIN LAMINATES REINFORCED WITH GLASS FIBERS.
GB1249291A (en) Improvements in or relating to composite materials
PL292941A1 (en) Ski structure incoporating flat strips or elongated boards made of glass fibre reinforced plastic
FI885505A0 (en) Plastic materials
JPS57118497A (en) Speaker diaphragm
IT1085576B (en) PROCEDURE FOR THE PARTIALLY EMPTY MANUFACTURE OF THERMO-HARD RESIN LAMINATES REINFORCED OR NOT REINFORCED WITH FIBERS
JPS6464778A (en) Dressing roll and manufacture thereof
FI881098A (en) Process for making fiber-reinforced plastic structure
JPS5725796A (en) Diaphragm for electroacoustic transducer
JPS54129073A (en) Production of floor covering material
JPS5548803A (en) Tone arm
JPS57154559A (en) Packing
JPS5723386A (en) Loudspeaker cabinet
JPS53119972A (en) Curing of resin-impregnated fibrus sheet materials
ES2016536A6 (en) Application of highly viscous liquid
IT7922032V0 (en) LAYERED FABRIC AND PLASTIC MATERIAL REINFORCED WITH NATURAL FIBERS, PREFERABLY COCONUT, PREVIOUSLY IMPREGNATED.
FR2193099A1 (en) Carding needle bar - resilient assembly from carbon fibres embedded in synthetic resin matrix
JPS6485626A (en) Dust collecting bag in electric cleaner
RO102808A2 (en) Hydro-insulating mortar
IT7922514A0 (en) PROCEDURE FOR THE PRODUCTION OF PROTECTIVE HELMETS IN ARTIFICIAL MATERIAL REINFORCED WITH GLASS FIBERS OR SIMILAR.