| 摘要 |
PROBLEM TO BE SOLVED: To provide a sash which eliminates the risk of fire spreading by reducing the number of resin components.SOLUTION: A sash includes a frame body, a screen housed in the frame body so as to freely slide, and a cutoff plate. The screen has a screw hole on a depth face of a stile. The cutoff plate is attached to at least one of the upper and lower ends of depth face of stile of the screen, to cover the screw hole, and its tip is provided with a fin piece to be in slide contact with the inner peripheral side surface of the frame body. |
