| 摘要 |
PROBLEM TO BE SOLVED: To provide a simple vinyl greenhouse, which can protect plants from winter weather, or the like, and can control ventilation and be changed in shape depending on plant shape, or the like, by covering a vinyl sheet over specific frame levers, and providing an anchor hole at the lower end of each lever or one or more anchor holes at the lower sheet end. SOLUTION: This greenhouse comprises two or more frame levers 6 with a ring 5 inserted into an axis hole at the top of the levers 6, by which these levers 6 can be developed like umbrella ribs, and a sheet 3 which can be unfolded to have the pyramid or hemispherical greenhouse when the levers 6 are expanded, each lever 6 is provided with an anchor hole 8 at the lower end or the sheet 3 is provided with anchor holes at the lower end. The anchor hole 8 at the lower end of each lever 6 or sheet 3 may be replaced by a projection as the anchor to be struck into soil, which extends downward from the sheet 3 at the lever end.
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