| 摘要 |
PURPOSE: A door frame is provided to remarkably reduce a heat loss when a door is closed and to prevent dew condensation occurred by a temperature change. CONSTITUTION: A door frame is composed as follows. The door frame is fixed to a building and covers the outer surface of a door(1). The door frame is divided into an inner frame body(10) and an outer frame body(20). The inner frame body is formed by bending an insertion part(11). The outer frame body is formed by bending an assembling part(21). A first groove is formed in the insertion part. A second groove is formed in the assembling part. The first groove and the second groove are assembled. A heat cutoff member(30) is connected to the inner frame body and the outer frame body. |
