| 摘要 |
<p>A window sash assembly which comprises an outer metal frame, an inner frame positioned and assembled indoors adjacent to said outer frame and a peripheral edge member positioned about the inner face of said inner frame to cover the adjacent open end of an indoor wall member, is disclosed. The inner frame includes a main portion of thermally insulating material which integrally includes said peripheral edge member at the inner end portion thereof to thereby form a sash main frame extending from said peripheral edge member to the indoor pieces of said outer sash. Metal upper and lower rail frames and metal left-hand and right-hand door boxing frames are positioned along about the inner periphery of said sash main frame. Said sash main frame is formed into a framework and said upper and lower rail frames and left-hand and righthand door boxing frames are formed into a framework within said framework of the sash main frame.</p> |
