| 摘要 |
Extendible device (10) to distribute concrete, installed on a heavy work vehicle (11). The device (10) comprises a plurality of articulated arms (17, 18, 19, 20, 21, 22) pivoted to each other at respective ends and selectively positionable between a first transport configuration, wherein they are folded back on each other and contained within the bulk of the heavy vehicle (11), and a work configuration, wherein they are extended until they reach their maximum extension. At least three consecutive articulated arms (17, 18, 19) are folded one with respect to the other in a first direction (Vl), while the other articulated arms (20, 21, 22) are folded one with respect to the other one in a second direction (V2), opposite to the first direction (Vl), and the other in the first direction (Vl). In the transport condition, the articulated arms (17-22) are grouped in two distinct groups (32, 33) of arms adjacent to each other. |
