WINDOW FRAME HAVING A PREFABRICATED RAIL

摘要

The present invention relates to a window frame having a prefabricated rail capable of improving a rollability of a roller in a sliding opening of a pair of windows by applying an aluminum rail to a PVC window frame, and simply having a drain hole to discharge condensation liquid water on one side of the rail. To achieve the objective of the present invention, the window frame (100) to which the pair of windows is coupled to slidingly be opened and closed comprises: a synthetic resin body (110) having a coupling groove (111) formed on an inner circumference in a direction where the windows are slidingly opened and closed; and a prefabricated metal rail (120) fitted in the coupling groove (111). The present invention improves rollability of the roller in the sliding opening and closing of the windows by applying the aluminum rail to the PVC window frame; reduces man-hour by forming a discharge unit for the condensation liquid water using a method of fitting a coupling member with the drain hole on one side of the rail; and improves insulation performance by coupling a cover profile with a gasket to the inner side surface of the window frame to block a gap between the window frame and the windows.