INSULATION WINDOWS FRAME

The present invention relates to an insulation window frame, in which one surface of an inner frame is insulated by an insulation panel of a cover insulator, a fitting protrusion is enclosed by an insulation portion, and one end of a joint insulator comes into contact with an outer frame installed to face the inner frame, with the other end being fitted into a fitting groove of the cover insulator, to block off a flow of a chilly air or heat transferred to the inner or outer frame by the joint insulator, and block off the chilly air or heat in the space between a window and the cover insulator by the cover insulator, thereby preventing the chilly air or the heat from being transferring to the indoor or the outdoor through the inner and outer frames. According to the present invention, the insertion protrusion of the cover insulator is fitted to the fitting groove of the inner frame to prevent the cover insulator from being released. The inner and outer frames are insulated by the cover insulator and the outer insulator to block off the flow of the heat or the chilly air from the inner and outer frames by the joint insulator, thereby preventing the heat or the chilly air from being transferred to the outdoor or the indoor. Therefore, since the flow of the chilly air or the heat is prevented, the heating/cooling efficiency of the indoor is improved, and thus the energy consumption is decreased. Since the inner and outer frames are connected to each other by the joint insulator, there is no trouble to fasten the frames by separate fastening members, thereby shortening construction time and reducing work costs.