| 摘要 |
<p>A connection device (1), particularly for door and window frames, comprises mortise means (2) formed on a head (3) of a first element (4), and tenon means (5) formed on the head (6) of a second element (7) to be associated with the first element (4), said mortise (2) and tenon (5) means having a substantially T-shape. The mortise (2) and tenon (5) means comprise each a respective stem (23,53) and a first wing (21,51) merging with a second wing (22,52), the first wing (21,51) having an extension slightly larger than that of the second wing (22,52), both the wings extending in a cascade relationship substantially along a same middle line, and both said wings being fitted to the central stem by respective curved surfaces.</p> |
