| 摘要 |
PROBLEM TO BE SOLVED: To provide a double sliding sash having a superior watertightness regardless of the sectional shape of a lower frame of the sash. SOLUTION: The double sliding sash comprises the lower frame 2 having a ponding space 23 formed at the indoor side relative to an outer shoji screen 12 by inner/outer rails 21, 22, which have almost the same height, and a drain hole 24 for draining rain water ponding in the ponding space 23, an auxiliary frame 4 fixed to an opening of a body and is arranged below the lower frame 2, and a water-dripping material 3 arranged in the outdoor side relative to the lower frame 2 and the auxiliary frame 4 and having a ponding hollow part 31. A communicating hole 32 communicating with the drain hole 24 of the lower frame 2 is formed on an upper part of the ponding hollow part 31, while a drip hole 33 for draining the rain water to the outdoor side is formed on a lower part of the hollow part 31. The auxiliary frame 4 has a locking portion 41 to lock a to-be-locked part 34 on the water-dripping material 3, which is screwed firmly to the lower frame 2 or to the auxiliary frame 4. COPYRIGHT: (C)2004,JPO
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