| 摘要 |
PURPOSE:To induce indoor air and increase the amount of ventilation by providing the flow of outdoor air in the ventilating ridge, effecting the ventilation of the rear side of a roof or inside of a room by utilizing a temperature difference or the power of external wind. CONSTITUTION:The outdoor air, entered into the roof ridge from the ventilating port 2 of one side, passed through a ventilating flow path 24, formed by a ceiling plate 14, a bottom plate 16 and both partitioning plates 19, 19, as shown by an arrow sign X and flows to the outside through the other ventilating port 2. In this case, the atmospheric pressure in the flow path 24 is reduced due to the passing of the atmosphere, therefore, air in the rear side of the roof is sucked out of an exhaust port 17 into the flow path 24 through a suction port 3, a net 22b and a clearance 20 below the partitioning plate 19 as shown by the arrow sign Y and is transported to the outdoor together with atmosphere. The sectional area of the center of the ventilating flow path is choked to a small area by a ceiling board 14 and the bottom plate 16, therefore, flow speed of the atmospheric near the exhaust port 17 is increased and the amount of ventilation is affected so as to be increased. |
