PROBLEM TO BE SOLVED: To provide a railway vehicle cargo shelf capable of reducing booming noise in a passenger cabin.SOLUTION: This railway vehicle cargo shelf is provided with: an upper plate member 62 that forms the upper surface of a cargo shelf 60; and a lower plate member 63 that forms the lower surface of the cargo shelf 60. A space S is formed between the upper plate member 62 and the lower plate member 63, and pluralities of openings 62a and 63a are formed in the upper plate member 62 and the lower plate member 63. Thus, a sound can be transmitted between a cargo shelf upper space and a cargo shelf lower space by utilizing the openings 62a of the upper plate member 62, the space S, and the openings 63a of the lower plate member 63. Thus, a booming sound can be reduced in a passenger cabin R by integrating the sound fields of the cargo shelf upper space and the cargo shelf lower space.SELECTED DRAWING: Figure 5
【課題】客室内のこもり音を低減できる鉄道車両用荷棚を提供すること。【解決手段】荷棚60の上面を形成する上板部材62と、荷棚60の下面を形成する下板部材63とを備え、上板部材62と下板部材63との間に空間Sが形成されると共に、上板部材62及び下板部材63のそれぞれに複数の開口62a,63aが開口形成されるので、上板部材62の開口62a、空間S及び下板部材63の開口63aを利用して、荷棚上部空間と荷棚下部空間との間で音を透過させることができる。その結果、荷棚上部空間と荷棚下部空間との音場を一体化して、客室R内のこもり音を低減できる。【選択図】図5
RAILWAY VEHICLE CARGO SHELF
鉄道車両用荷棚
2018-01-11
Patent
Elektronische Ressource
Japanisch