| 摘要 |
<p>The machine (1) has a path widening unit comprising deformable side shears (8) and a deformation unit to deform the shears between folded and deployed positions. The shears have a rod (10) extended from a side (15)/an upper portion (17) of a frame (2) and another rod (12) rotatively articulated on a support element (6) of a bearing unit and on the former rod around an axis (X3). The rods form an angle (alpha). The deformation unit is arranged to pivot the latter rod relative to the former rod around the axle while varying the angle between minimal and maximum values attained in the positions.</p> |
