| 摘要 |
PURPOSE: An insulation window structure of a curtain wall is provided to improve an insulation function by maximizing the coupling force of an outer frame and an inner frame. CONSTITUTION: An insulation window structure of a curtain wall comprises an outer frame(50), an inner frame(51), and an insulation frame(103). The insulation frame has coupling grooves(108) and end protrusions(104). The coupling grooves are coupled to the outer frame. The end protrusions are formed so that the end protrusions cannot be separated from the inner frame. |
