| 摘要 |
<p>The present invention relates to a jib/counter-jib structure for a flat top tower crane, formed by partial sections, each of which comprises a fixed lower lattice structure (9) provided with end couplings (11) for connecting with other consecutive sections, and an upper lattice structure (10) formed by side panels (12), which are connected to the lower lattice structure (9) by means of articulated or removable couplings (13), such that said panels (12) of the upper lattice structure (10) can be removed or lowered with respect to the lower lattice structure (9) for transporting the section.</p> |
