| 摘要 |
PROBLEM TO BE SOLVED: To provide an installation structure of a glass panel to a sash for restraining adverse influence on the glass panel, by quickly avoiding a state of sticking moisture to a glass panel end surface. SOLUTION: This grading channel 3 is interposed between the sash 2 and the glass panel 1 by being installed on a base of the glass panel 1 formed by superposing a plurality of glass panes 8 and 8. A side wall part 3b has a step height part 5 for placing an end surface of the glass panel 1. The step height part 5 is arranged by raising a level to the glass panel 1 side by the predetermined height from an inner peripheral surface of a bottom wall part 3a. A wetting characteristic of at least the inner peripheral surface of the bottom wall part 3a is set to a water contact angle of 110°or less. The opening ratio of a drain hole 15 to the bottom wall part 3a and the height up to an upper surface of the step height part 5 from the inner peripheral surface of the bottom wall part 3a, are set in a value within a range surrounded by four points of an A point (90%, 2.5 mm), a B point (90%, 5.0 mm), a C point (25%, 5.0 mm) and a D point (45%, 2.5 mm) in a graph with the axis of abscissa as the opening ratio and the axis of ordinate as the height. COPYRIGHT: (C)2006,JPO&NCIPI
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