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1. (WO2019026294) SOUND ABSORBING MEMBER, VEHICLE COMPONENT, AND AUTOMOBILE
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Pub. No.: WO/2019/026294 International Application No.: PCT/JP2017/028486
Publication Date: 07.02.2019 International Filing Date: 04.08.2017
IPC:
G10K 11/172 (2006.01) ,B60R 13/08 (2006.01) ,G10K 11/162 (2006.01)
G PHYSICS
10
MUSICAL INSTRUMENTS; ACOUSTICS
K
SOUND-PRODUCING DEVICES;  METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
11
Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
16
Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
172
using resonance effects
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
R
VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
13
Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
08
Insulating elements, e.g. for sound insulation
G PHYSICS
10
MUSICAL INSTRUMENTS; ACOUSTICS
K
SOUND-PRODUCING DEVICES;  METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
11
Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
16
Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
162
Selection of materials
Applicants:
イビデン株式会社 IBIDEN CO., LTD. [JP/JP]; 岐阜県大垣市神田町2丁目1番地 1, Kandacho 2-chome, Ogaki-shi, Gifu 5038604, JP
Inventors:
古澤 秀樹 FURUZAWA, Hideki; JP
坂口 洋之 SAKAGUCHI, Hiroshi; JP
西川 智裕 NISHIKAWA, Tomohiro; JP
野村 敏弘 NOMURA, Toshihiro; JP
Agent:
特許業務法人 安富国際特許事務所 YASUTOMI & ASSOCIATES; 大阪府大阪市淀川区宮原3丁目5番36号 5-36, Miyahara 3-chome, Yodogawa-ku, Osaka-shi, Osaka 5320003, JP
Priority Data:
Title (EN) SOUND ABSORBING MEMBER, VEHICLE COMPONENT, AND AUTOMOBILE
(FR) ÉLÉMENT D’ABSORPTION SONORE, COMPOSANT DE VÉHICULE ET AUTOMOBILE
(JA) 吸音部材、車両用部品及び自動車
Abstract:
(EN) This sound absorbing member is provided with non-through holes having a Helmholtz resonant structure and comprising introduction passages opened in a surface and hollow parts connected to the outside via the introduction passages, wherein the sound absorbing member is characterized by being provided with the non-through holes arranged at equal intervals and having the same resonance frequency, and being furthermore provided with a plurality of non-through holes having a different shape and resonance frequency than the aforementioned non-through holes, the difference in resonance frequency between the non-through holes arranged at equal intervals and having the same resonance frequency and the plurality of non-through holes having a different shape and resonance frequency being at least 1/3 octave.
(FR) La présente invention concerne un élément d’absorption sonore qui est pourvu de trous non traversants ayant une structure résonante de Helmholtz et comprenant des passages d’introduction ouverts dans une surface et des parties creuses reliées à l’extérieur par l’intermédiaire des passages d’introduction, l’élément d’absorption sonore étant caractérisé en ce qu’il est pourvu des trous non traversants agencés à des intervalles égaux et ayant la même fréquence de résonance, et étant en outre pourvu d’une pluralité de trous non traversants ayant une forme et une fréquence de résonance différentes par rapport aux trous non traversants mentionnés ci-dessus, la différence de fréquence de résonance entre les trous non traversants agencés à des intervalles égaux et ayant la même fréquence de résonance et la pluralité de trous non traversants ayant une forme et une fréquence de résonance différentes étant d’au moins 1/3 octave.
(JA) 本発明の吸音部材は、表面に開口する導入通路と前記導入通路を介して外部と接続される中空部とからなり、ヘルムホルツ共鳴構造を有する非貫通孔を備えた吸音部材であって、前記吸音部材は、等間隔で配列された、共鳴周波数が同一となる前記非貫通孔を備えるとともに、さらに、それら非貫通孔とは形状および共鳴周波数が異なる複数の非貫通孔を備え、前記等間隔で配列された、共鳴周波数が同一となる非貫通孔と、それらとは形状および共鳴周波数が異なる複数の非貫通孔との共鳴周波数の差は、1/3オクターブ以上であることを特徴とする。
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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, JP, 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 Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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)