| 摘要 |
PURPOSE:To provide the subject ventilator in which ventilation of a vinyl house is carried out at the ceiling part. CONSTITUTION:A skylight frame 6 is attached to the ceiling part of a house frame 3 set up by inserting plural arch-shaped frame members 1 parallel to each other into the soil and connecting side pipes 2 arranged in the longitudinal direction of the house over the whole length of the house. The skylight frame 6 is, in its inside, equipped with a drive shaft 11 rotatably supported through bearings over the whole length of the house, with an arm 14 having the basal part attached to the drive shaft and the top part extending to the outside of the above skylight frame, with a sheet winding shaft 15 rotatably set to the arm, with a skylight vinyl sheet 21 fixed to the sheet winding shaft at the starting part, wound around the sheet winding shaft and fixed to the lower part of the above skylight frame at the end part and with a rotation drive mechanism for rotating the above drive shaft 11 and the above sheet winding shaft 15. |
