| 摘要 |
PROBLEM TO BE SOLVED: To solve such problems with a rolling screen door rotatably supported on an opening frame, having one end of a net connected to a shaft incorporating a shaft and the other end of the net connected to a movable rail moving along the opening frame, and opened and closed according to the movement of the movable rail that the net is left unrolled when rolling due to the deflection of the shaft by the recovering force of a coiled spring when the net is closed and that flapping noise occurs. SOLUTION: The length of the shaft 12 incorporated in the shaft 11 having a length corresponding to the width or the height of the opening frame 1 is set larger than 1/3 of the overall length of the shaft in the opening frame 1 of the maximum size among all opening frames using the shaft 12 commonly to each other, and 1/2 or more of the overall length of the shaft 11 in the opening frame 1 of the minimum size. COPYRIGHT: (C)2004,JPO
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