| 摘要 |
<p>A joining system (20,20A-D) for the production of a tubular frame structure (26,26A-D) having legs (27,27A-D) of the type comprising, in combination: a joining element (G) suitable for interconnecting said structure (26,26A-D) with said legs (27,27A-D) by means of first (44,44A-D;45,45A-D) and second (30,30A-B;34,34A-D) connecting and fixing means envisaged on said joining element (G). According to the invention, said joining element (G) and said first and second connecting and fixing means are substantially completely contained inside said leg (27,27A-D), at the top of the same, and that said structure (26,26A-D) is fixed to said joining element (G) by means of said first connecting and fixing means, whereas said leg (27,27A-D) is fixed to said joining element (G) by means of said second fixing means.</p> |
