To obtain a vehicle shape capable of suppressing effects of aerodynamic noise and aerodynamic resistance to the minimum, by taking into consideration that aerodynamic design is an important factor in improving energy efficiency of a railroad train, and that aerodynamic noise and aerodynamic resistance are two important items to consider affecting railroad design.SOLUTION: A vehicle comprises a handle and a handle cover. The vehicle has an aperture for housing the handle and the handle cover. The handle cover is fixed to the vehicle with a hinge so as to be freely rotatable from a released state to a closed state, at an end on an upstream side of the aperture. In the closed state, an outer wall surface of the handle cover has a recess to be engaged with the handle so as to be disposed substantially on the same plane as an outer wall of the vehicle, and has a gap between a tip of the handle cover and a downstream side wall of the aperture. In the case that speed of air flowing in the vehicle is a certain speed or faster, the air flows into the aperture through the gap so that a closed state of the handle cover is retained.SELECTED DRAWING: Figure 2
【課題】鉄道列車のエネルギー効率を向上させるにあたって、空力設計が重要な要素である。空気力学的騒音及び空気力学的抵抗は、鉄道設計に影響を及ぼす2つの重要な考慮事項である。空気力学的騒音及び空気力学的抵抗の影響を最小限に抑えることができる車両形状が求められている。【解決手段】取手及び取手カバーを備える車両であって、車両は、取手及び取手カバーを収容する開口部を有しており、取手カバーは、開口部の上流側の端部において、解放状態から閉鎖状態まで回動自在となるようにヒンジによって車両に固定されており、閉鎖状態では、取手カバーの外壁面が車両の外壁とほぼ同一面となるように取手と係合する凹部を有し、取手カバーの先端部と開口部の下流側壁との間に間隙を有し、車体を流れる空気の速度が一定以上の場合には、間隙から空気が開口部に流入することによって、取手カバーを閉鎖状態に保つ。【選択図】図2
VEHICLE COMPRISING HANDLE AND HANDLE COVER
取手及び取手カバーを備えた車両
2021-02-22
Patent
Elektronische Ressource
Japanisch
IPC: | B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES |
Auxiliary handle and vehicle comprising auxiliary handle
Europäisches Patentamt | 2023
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