To provide a low noise device for railway vehicle which can reduce an aerodynamic sound even when a railway vehicle travels at a high speed and which does not hinder maintainability of the vehicle.SOLUTION: A low noise device comprises low noise members which are respectively arranged on front and rear sides of wheels and attached to a carriage via an arm part. The low noise member comprises: a noise reduction part which extends along a vehicle width direction and protrudes from a lower surface of a vehicle body; and an aerodynamic sound suppression part which extends in the vertical direction from the noise reduction part. The arm part extends along a travel direction of the vehicle, one end thereof is attached to the carriage and the other end thereof is attached to the low noise member. The low noise member is stored in a carriage storage part. The noise reduction part has an inclined surface that is inclined at an acute angle with respect to the travel direction of the vehicle.SELECTED DRAWING: Figure 1
【課題】鉄道車両が高速で走行した場合でも空力音を低減することができ、車両のメンテナンス性を阻害しない鉄道車両用低騒音装置を提供する。【解決手段】車輪の前後にそれぞれに配置されると共に、台車に腕部を介して取付けられた低騒音部材を備え、低騒音部材は、車幅方向に沿って延びると共に車体の下面から突出する騒音低減部と、騒音低減部から鉛直方向に伸びる空力音抑止部とを有し、腕部は、前記車両の進行方向に沿って延びると共に、一端が台車に取付けられ、他端が低騒音部材に取付けられ、低騒音部材は、台車収容部に収容されると共に、騒音低減部は、車両の進行方向に対して鋭角に傾斜する傾斜面を有する。【選択図】図1
LOW NOISE DEVICE FOR RAILWAY VEHICLE
鉄道車両用低騒音装置
2022-04-28
Patent
Elektronische Ressource
Japanisch
IPC: | B61F Untergestelle für Schienenfahrzeuge, z.B. Fahrgestellrahmen, Drehgestelle oder Anordnungen der Radsätze , RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES / B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES |
NOISE-ABSORBING DEVICE FOR RAILWAY VEHICLE WHEEL AND ASSOCIATED RAILWAY VEHICLE WHEEL
Europäisches Patentamt | 2019
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