| 摘要 |
PROBLEM TO BE SOLVED: To provide a flexible film gate capable of improving operability and preventing water leakage in the gate providing a rigid plate on the water pressure side of a flexible film and protecting the flexible film. SOLUTION: A sheet 3 is installed on the water pressure side of the flexible film 2, the rigid plate 4 is adhered and attached to the sheet except for the bottom end 7, the side end 9 and the intermediate folded part 8 of the sheet, in addition, the bottom end of the sheet is rotatably fixed on a ground 5, and the side end of the sheet is expandably on a side wall 6.
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