PROBLEM TO BE SOLVED: To provide a flooring material having excellent sound absorbency for a low frequency band of 160 Hz to 500 Hz.SOLUTION: A flooring material 1 comprises a porous material 3 having open cells provided on a lower surface side of an air-permeable skin material layer 2, a fiber layer 4 provided on a lower surface side of the porous material 3, and a core layer 5 constituted by a plurality of cells having an air chamber therein and a cylindrical wall body, arranged so as to be adjacent to each other via the wall bodies. A total thicknesses of the air-permeable skin material layer 2, the porous material 3, the fiber layer 4 and the core layer 5 is 30 mm to 100 mm. The porous material is preferably one kind selected from a group consisting of nonwoven fabric and polyurethane foam. The fiber layer is preferably one or more kinds selected from a group consisting of nonwoven fabric and three-dimensional knitted fabric.SELECTED DRAWING: Figure 1
【課題】160Hz〜500Hzの低周波帯域の吸音性に優れた床材を提供する。【解決手段】床材1は、通気性の表皮材層2の下面側に連続気泡を有する多孔質材料3と、該多孔質材料3の下面側に繊維層4と、内部に空気室を有すると共に筒状の壁体を有するセルが該壁体を介して隣接するように複数配列されて構成されたコア層5とを、備える。通気性の表皮層2と多孔質材料3と繊維層4とコア層5の合計の厚みが、30mm〜100mmである。多孔質材料は、不織布、ポリウレタンフォームからなる群から選ばれる1種であることが好ましい。また繊維層は、不織布、立体編物からなる群から選ばれる一種又は複数であることが好ましい。【選択図】図1
FLOORING MATERIAL HAVING EXCELLENT SOUND ABSORBENCY
吸音性に優れた床材
2018-04-05
Patent
Electronic Resource
Japanese
IPC: | G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES / B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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