| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a ventilation implement for both side faces of a plant cultivation plastic greenhouse which can be kept airtight and ventilated only through largely pulling down a main plastic sheet (for airtightness) or slightly pulling up the largely pulled down sheet, and can prevent rain from getting in the inside of the greenhouse even when it rains during ventilation. <P>SOLUTION: The ventilation implement for both side faces of a plant cultivation plastic greenhouse comprises the followings: a main body member 10 integrally provided with a longitudinally slender inner surface piece 11 perpendicularly coming in contact with the outer surfaces of the right and left leg parts 1L, 1R of an inverted U-shaped main frame 1, an arched outer surface piece 12 coming in contact with plastic sheets 4L, 4R when they vertically move, engaging parts 13 respectively engaging with the right and left leg parts 1L, 1R at their upper and lower parts, and a horizontal groove 14 receiving a horizontal frame 2 to which the upper end part of the lower part of the plastic sheet; and fixing members 20 fixing the upper and lower parts of the main member 10 to the right and left leg parts 1L, 1R so that the arched outer surface piece 12 faces outward. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
