| 摘要 |
PURPOSE: A structure for preventing a leakage is provided to prevent the leakage of a rainwater into a bus by forming a vent aperture for flowing in an external air and a discharging aperture for discharging the rainwater in the upper member of a natural ventilating structure flowing in the external air into the bus. CONSTITUTION: A structure(10) of a ventilating opening is formed by a side upper unit horizontal filler(20), roof upper and lower unit horizontal fillers(30), (30a), and a rainwater blocking member(40). Herein, the externals of the side upper unit horizontal filler and the roof upper and lower unit horizontal fillers contain the inside of the rainwater blocking member by welding. And the rainwater blocking member is composed of a perpendicular member(41) weld fixed to the side upper horizontal filler and the roof upper and lower unit horizontal fillers and a blocking member(42) being bend up formed on the outside of the upper end of the perpendicular member for blocking the rainwater running down from the ceiling of a bus from flowed into the bus.
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