| 摘要 |
PROBLEM TO BE SOLVED: To maintain a vertical state of a ventilator even when the ventilator is attached between cross rails with different heights out of a roof skeleton for a plastic greenhouse, and to resolve problems such as leaking of rain from the ventilator. SOLUTION: The mounting attachment 34 is for holding the ventilator 1 being cylindrical as a whole with a top plate 9 and having a vent hole 11 in its upper part periphery, between horizontal cross rails 31, 32 with different heights out of a roof skeleton for a plastic greenhouse. It is characterized by that a frame body 35 surrounding an outer side of the ventilator is detachably provided with respect to the ventilator, and securing parts 36, 37 to be fixed to the cross rails protrude from left and right outer sides of the frame body 35 with different heights in the left and right. A top face of the frame body can be formed slanting downward from the higher securing part side toward the lower securing part side, The attachment is formed by a separated upper frame and lower frame. A securing part to be fixed to one cross rail protrudes in an outer side of the upper frame, and a securing part to be fixed to the cross rail in the opposite side protrudes in an outer side of the lower frame. COPYRIGHT: (C)2008,JPO&INPIT
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