| 摘要 |
PROBLEM TO BE SOLVED: To suppress dripping of dew condensate into a room. SOLUTION: A lighting window is constituted by placing the peripheral edge of a glass body 2 on a support frame 1, holding the peripheral edge of the glass body 2 between the support frame 1 and a keep frame 3 placed on the support frame 1 through the glass body 2, to form a glass window body 4, and mounting the glass window body in an openable/closable manner to a rising frame 5 at the peripheral edge of a lighting opening in a roof face. In this constitution, cut-off packing 8 is interposed between the lower face of the glass body 2 and the upper face of the support frame 1, in a position held back from the inner periphery of the support frame 1 so as to extend over the whole periphery. On a downstream side frame member 1a of the support frame 1, the position of the cut-off packing 8 is further held back onto the downstream side compared with the other part to form a deep water storage part 14 for dew condensate by the cut-off packing 8, the upper face of the downstream side frame member 1a and a glass face. A drainage gutter 1 for draining water in the water storage part 14 is formed between the glass body 12 or the keep frame 3 and the downstream side frame member 1a, in a position closer to the center side than to both ends of the downstream side frame member 1a which is a corner part of the support frame 1. COPYRIGHT: (C)2003,JPO
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