| 摘要 |
Provided is a multi-rail window with high airtightness, wherein a window frame and a sliding frame constituting a double sliding window have a structure, in which a synthetic resin module is assembled to the inside of a metal module and the window frame, is configured to have multiple rails such that a weather strip of the sliding frame is positioned between the rails and outside the rails to form a multi-flow path and an airtightness member is installed in the multi-flow path to provide rigidity, airtightness, and insulation. The double sliding window includes a window frame (1) and left and right sliding frames (2) slid by a roller installed in the rail of the window frame (1). In the window frame, an outer metal window frame module (110), a first synthetic resin window frame module (120), a central metal window frame module (130), a second synthetic resin window module (140), and an inner metal window frame module (150) are sequentially coupled in this order from an outdoor side. In the left and right sliding frames (2), an outer metal sliding frame module, a synthetic resin sliding frame module, and an inner metal sliding frame module are sequentially coupled in this order. A multi-flow path is formed by a plurality of weather strips formed in each of the sliding frame modules of the left and right sliding frames (2) installed to correspond to the rail position, and a plurality of airtight members are installed on the route of the multi-flow path in multiple stages. |
