摘要 |
PURPOSE: A window frame sash is provided to prevent water flowing along a wall from flowing into a window and to protect the window from contaminated rainwater. CONSTITUTION: A window frame sash(1) comprises an indoor guiderail(4a), an outdoor guiderail(4b), and an insect screen rail(4c). The indoor and outdoor guiderails and the insect screen rail are protruded from the gap between indoor and outdoor protrusions(31,32) of upper and lower window frames(2a,2b). The indoor guiderail is more protruded toward an indoor window than the outdoor guiderail protruded toward an outdoor window. First and second bottoms(41,42) are formed between the indoor and outdoor guiderails. A third bottom(43) is formed between the outdoor guiderail and the insect screen rail. A fourth bottom(44) is formed between the insect screen rail and the outdoor protrusion. |