| 摘要 |
<p>PROBLEM TO BE SOLVED: To solve the problem on safety since the indoors becomes narrow when a window frame jumps out indoors, since a conventional inner window requires an extension window frame 9 and since glass is broken and scattered indoors and the cutoff effect, the heat insulation effect, the heat reserving effect and the soundproof effect are not sufficiently acquired due to a glass window with a door roller.SOLUTION: The extension window frame 9 is eliminated by reducing a jumping-out amount by directly installing a thin inner window in close contact in a regular window. The thin inner window is provided by being formed as a window body window frame integral type 1 and a guide groove-2 structure. Sealing, cutoff and soundproofing are further enhanced by a slide dimension adjustment. The heat insulation effect and the heat reserving effect are enhanced by being formed as a resin system window, and breaking time safety is secured.</p> |
