To provide a sound absorber for automobile and a floor silencer for automobile that utilize a layered composite component consisting of a plurality of layers including a glass fiber layer so as to exhibit superior sound absorbing performance against noise.SOLUTION: Each mixed member is formed of a crushed raw material in a three-dimensional shape as a mixed body among a plurality of crushed raw materials obtained by crushing layered composite raw materials including a glass fiber layer into various shapes including the three-dimensional shape and a line shape, and a plurality of glass fibers, extended, involved in the crush, from parts corresponding to the glass fiber layer, of the mixed body as mixed glass fiber parts. In an agitation mixed body consisting of respective mixed members mixed by agitation in a binder and the binder, a mixed glass fiber part of each mixed member is located in at least one maze-like path formed between mutually facing mixed bodies in each mixed member. The agitation mixed body is formed in a predetermined layer shape conforming to a sound absorber for an automobile.SELECTED DRAWING: Figure 3

    【課題】本発明は、ガラス繊維層を含む複数層からなる積層状複合部品を活用し、騒音に対し優れた吸音性能を発揮し得る自動車用吸音体及び自動車用フロアサイレンサーを提供する。【解決手段】各混合部材は、ガラス繊維層を含む積層状複合原材を立体形状及び線形状を含む各種形状に粉砕してなる複数の粉砕原材のうち、立体形状の粉砕原材を混合本体とし、かつ、当該混合本体のうちガラス繊維層に対する対応部位から上記粉砕に伴い延出してなる複数のガラス繊維を混合ガラス繊維部として形成してなる。バインダー内にて撹拌混合してなる各混合部材及びバインダーからなる攪拌混合体内において、各混合部材のうちの互いに対向し合う各混合本体の間に形成してなる少なくとも1つの迷路状経路には、各混合部材の混合ガラス繊維部が位置している。攪拌混合体は自動車用吸音体の形状である所定の層形状に形成されている。【選択図】図3


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    Title :

    SOUND ABSORBER FOR AUTOMOBILE AND FLOOR SILENCER FOR AUTOMOBILE


    Additional title:

    自動車用吸音体及び自動車用フロアサイレンサー


    Contributors:

    Publication date :

    2023-05-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES



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