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1. (WO2019031353) LOUDSPEAKER AND ACOUSTIC DEVICE
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2019/031353 International Application No.: PCT/JP2018/028864
Publication Date: 14.02.2019 International Filing Date: 01.08.2018
IPC:
H04R 9/02 (2006.01) ,H04R 1/02 (2006.01) ,H04R 1/10 (2006.01) ,H04R 9/04 (2006.01) ,H04R 25/00 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
R
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
9
Transducers of moving-coil, moving-strip, or moving-wire type
02
Details
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
R
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1
Details of transducers
02
Casings; Cabinets; Mountings therein
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
R
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
1
Details of transducers
10
Earpieces; Attachments therefor
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
R
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
9
Transducers of moving-coil, moving-strip, or moving-wire type
02
Details
04
Construction, mounting, or centering of coil
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
R
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
25
Deaf-aid sets
Applicants:
パナソニックIPマネジメント株式会社 PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. [JP/JP]; 大阪府大阪市中央区城見2丁目1番61号 1-61, Shiromi 2-chome, Chuo-ku, Osaka-shi, Osaka 5406207, JP
Inventors:
松尾 雄史 MATSUO, Yuji; --
小須田 和之 KOSUDA, Kazuyuki; --
小林 勇一 KOBAYASHI, Yuichi; --
牧野 泰博 MAKINO, Yasuhiro; --
Agent:
新居 広守 NII, Hiromori; JP
寺谷 英作 TERATANI, Eisaku; JP
道坂 伸一 MICHISAKA, Shinichi; JP
Priority Data:
2017-15337908.08.2017JP
2017-15360108.08.2017JP
2017-15360808.08.2017JP
2018-14473901.08.2018JP
2018-14474401.08.2018JP
Title (EN) LOUDSPEAKER AND ACOUSTIC DEVICE
(FR) HAUT-PARLEUR ET DISPOSITIF ACOUSTIQUE
(JA) スピーカおよび音響装置
Abstract:
(EN) The present invention is provided with: a yoke (53); a magnet (52) fixed to the yoke (53); a plate (51) fixed to an end surface (52c) of the magnet (52), said end surface being on the reverse side of an end surface (52d) fixed to the yoke (53); a voice coil (40) disposed in a magnetic gap (54) formed between facing sections disposed facing each other, said facing sections being provided to the yoke (53) and the plate (51), respectively; a diaphragm (10) fixed to the voice coil (40); a supporting member (30) that supports the yoke (53) and the diaphragm (10); and a magnetic fluid (60) disposed between the voice coil (40) and the facing section of the plate (51). A coating film containing a fluorine resin is formed on the surface of a portion of the plate (51) and/or the voice coil (40), said portion being in contact with the magnetic fluid (60).
(FR) La présente invention comporte : une culasse (53) ; un aimant (52) fixé à la culasse (53) ; une plaque (51) fixée à une surface d'extrémité (52c) de l'aimant (52), ladite surface d'extrémité étant sur le côté opposé d'une surface d'extrémité (52d) fixée à la culasse (53) ; une bobine acoustique (40) disposée dans un entrefer magnétique (54) formé entre des sections opposées disposées en regard l'une de l'autre, lesdites sections en vis-à-vis étant fournies à la culasse (53) et à la plaque (51), respectivement ; un diaphragme (10) fixé à la bobine acoustique (40) ; un élément de support (30) qui supporte la culasse (53) et le diaphragme (10) ; et un fluide magnétique (60) disposé entre la bobine acoustique (40) et la section de face de la plaque (51). Un film de revêtement contenant une résine fluorée est formé sur la surface d'une partie de la plaque (51) et/ou de la bobine acoustique (40), ladite partie étant en contact avec le fluide magnétique (60).
(JA) ヨーク(53)と、ヨーク(53)に固定されるマグネット(52)と、マグネット(52)のヨーク(53)と固定されている端面(52d)とは反対側の端面(52c)に固定されるプレート(51)と、ヨーク(53)とプレート(51)とのそれぞれに設けられ、互いに対向して配置された対向部同士の間に形成された磁気空隙(54)内に配置されるボイスコイル(40)と、ボイスコイル(40)に固定される振動板(10)と、ヨーク(53)および振動板(10)を支持する支持部材(30)と、プレート(51)の対向部とボイスコイル(40)との間に配置される磁性流体(60)と、を備え、プレート(51)およびボイスコイル(40)の少なくとも一方のうち、磁性流体(60)が接触する部位の表面には、フッ素樹脂を含むコーティング膜が形成されている。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)