| 摘要 |
<p>The object of the invention is to provide an operating machine with an articulated arm, laterally displaceable, composed substantially by a cabin arm (4) and forearm (5) and which at the end of said forearm (5) includes an operating unit (6), characterized in that: the articulation zone between said cabin arm (4) and said forearm (5) of said articulated arm is endowed with articulation (7) also on a vertical axis by parallelogram system (S1 4 12' S2/A B G F; S1 4 12 13 14 S2/A B C D+C E F G); dynamic fluid cylinder means have been provided in said articulation (8) in a way to control the respective angle which is to be made on said vertical axis in order to, rotating the cabin frame (3) and placing said cabin arm in the corresponding angled position (4), counterrotate said forarm (5) to put it in a position at least parallel (Y) to the longitudinal symmetry chassis axis of the machine in the advancement direction (X).</p> |
