| 摘要 |
PURPOSE: A frame for windows and doors for obtaining excellent heat insulation properties is provided to effectively prevent heat conduction using a three-stage frame, an insulator in an insulator filling chamber, and a heat conduction preventive cut-out part. CONSTITUTION: A frame for windows and doors for obtaining excellent heat insulation properties comprises a reinforcement frame (10), an insulator (20), a link frame (30), and an exterior frame (40). Both ends of the reinforcement frame are equipped with a first joint part (11). The center of the reinforcement frame is equipped with an insulator filling chamber (12). The front or rear surface of the insulator filling chamber is formed with an insulator inlet (13) along the longitudinal direction. A heat conduction preventive cut-out part (14) is formed on a surface which faces a surface formed with the insulator inlet. One end of the link frame is supported by the first joint part of the reinforcement frame. The other end of the link frame is equipped with a second joint part (32). |
