| 摘要 |
PURPOSE: An insulated double window in which a curtain assembly and safety handrails are inserted is provided to prevent draft and noise, increase insulation efficiency, and reduce the manufacturing cost. CONSTITUTION: An insulated double window in which a curtain assembly and safety handrails are inserted comprises a curtain assembly(30) and multiple safety handrails(40). The curtain assembly is installed between an upper frame(20a) and a lower frame(20b) of an indoor extension frame(20) to be ascended and descended. The handrails are installed between a left frame and a right frame of an outdoor extension frame(22). The handrails are composed of safety bars(48) which prevent infants from falling down. |
