DIAPHRAGM FOR SPEAKER, MANUFACTURING METHOD OF DIAPHRAGM FOR SPEAKER, AND SPEAKER

To obtain a diaphragm for a speaker with high sound pressure, and a speaker.SOLUTION: A diaphragm 1 for a speaker includes a reinforcing fiber layer 10 in which carbon fibers 11 are randomly oriented in a thermoplastic resin, and a thermoplastic resin layer 20 arranged so as to sandwich the reinforc...

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Main Authors KUROYANAGI KAZUSHI, DOI SHINICHI, SAKAI RYUTA, INAGAKI KAZUYUKI, NAKAHARA KAZUMI, KUMAKURA HIROYUKI, SHIGETA AKIRA
Format Patent
LanguageEnglish
Japanese
Published 22.03.2022
Subjects
DEAF-AID SETS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
PUBLIC ADDRESS SYSTEMS
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Summary:To obtain a diaphragm for a speaker with high sound pressure, and a speaker.SOLUTION: A diaphragm 1 for a speaker includes a reinforcing fiber layer 10 in which carbon fibers 11 are randomly oriented in a thermoplastic resin, and a thermoplastic resin layer 20 arranged so as to sandwich the reinforcing fiber layer 10. It is preferable that the basis weight of the diaphragm 1 for the speaker is 60 g/m2 or more and 120 g/m2 or less.SELECTED DRAWING: Figure 2 【課題】音圧の高いスピーカー用振動板、スピーカーを得る。【解決手段】スピーカー用振動板１は、熱可塑性樹脂中に炭素繊維１１がランダムに配向された強化繊維層１０と、前記強化繊維層１０を挟むように配置された熱可塑性樹脂層２０とを備えている。スピーカー用振動板１の目付量が６０ｇ／ｍ２以上１２０ｇ／ｍ２以下であることが好ましい。【選択図】図２
Bibliography:Application Number: JP20200151453