PROBLEM TO BE SOLVED: To improve sound isolating performance without narrowing a passenger compartment space solving the problem that since there is a restriction of a vehicle limit in external dimensions of a double skin structure, widening of a gap between the double skin structure and an interior panel leads to narrowing of an interior space, and there is a limitation in increasing the gap between the double skin structure and the interior panel, and the thickness of a sound absorber from a viewpoint of securing passenger capacity in the width direction of a vehicle body cross section, and from the necessity of securing a certain ceiling height or more in the vertical direction.SOLUTION: In a railway vehicle having a double skin structure composed of an outer plate, an inner plate, a truss part, and a hollow part surrounded by them, a hole part is formed in either the inner plate or the truss part of the double skin structure, or in both of them, and a sound absorber is disposed between the inner plate on an in-vehicle side of the railway vehicle and an interior panel.SELECTED DRAWING: Figure 8
【課題】ダブルスキン構体の外形寸法は車両限界の制約があるため、ダブルスキン構体と内装パネル間の空隙を広げることは車内空間を狭めることにつながり、車体断面の幅方向は乗客定員確保の観点から、上下方向は天井高さを一定以上確保する必要性から、ダブルスキン構体と内装パネル間の空隙および吸音材厚さを増すことには制約がある。本発明は、客室空間を狭めることなく、遮音性を向上させることを目的とする。【解決手段】外板、内板、トラス部とそれに囲まれる空洞部で構成されるダブルスキン構体を有する鉄道車両において、ダブルスキン構体の内板およびトラス部のいずれか、ないしは両方に対して空孔部を形成し、鉄道車両の車内側の内板と内装パネル間に吸音材を配置した。【選択図】図8
RAILWAY VEHICLE AND RAILWAY VEHICLE PROCESSING METHOD
鉄道車両および鉄道車両加工方法
2017-06-15
Patent
Elektronische Ressource
Japanisch
IPC: | B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES |
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