| 摘要 |
PROBLEM TO BE SOLVED: To provide a sheet winding apparatus for a greenhouse effective for preventing the wobbling of the winding shaft of the greenhouse sheet with wind, enabling uniform winding of the sheet up to the entire depth of the greenhouse and reducing the installation cost of the greenhouse. SOLUTION: The winding shaft guiding apparatus of the sheet winding apparatus for a greenhouse to wind the sheet on a winding shaft is composed of a winding shaft restricting member having an inverse tapered part connected to a flange at the base end and fixed to at least a part near the non-driven end of the winding shaft and a stretchable winding shaft restriction wire extended along the orbit of the winding shaft restriction member and wound on the winding shaft restriction member at the middle part of the wire. The winding shaft restriction wire is wound on the winding shaft restriction member according to the rotation of the winding shaft to guide the vertical motion of the winding shaft, the winding shaft restriction member and the winding shaft restriction wire of the winding shaft guiding apparatus are symmetrically arranged at both ends of the winding shaft or thereabout and a spiral is formed on the inverse tapered part of the winding shaft restriction member. |
