| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a ventilating device for a vinyl greenhouse, excellent in operability, economics and maintenance when opening/closing a shielding sheet such as an insect-proof net and a transparent film to be arranged on an opening part of a vinyl greenhouse body. <P>SOLUTION: This ventilating device has a greenhouse constructing frame which is set outside the opening part of a vinyl greenhouse body, a shielding sheet whose end is fixed to a long sheet-fixing part horizontally arranged on the upper part of the greenhouse constructing frame and whose the other end is wound around a horizontally suspended roller member, and a roller driving part which vertically moves the rotatably suspended roller member and is attached to the upper part of the greenhouse-constructing frame. <P>COPYRIGHT: (C)2008,JPO&INPIT |
