| 摘要 |
<p>PCT No. PCT/EP93/02503 Sec. 371 Date Nov. 14, 1994 Sec. 102(e) Date Nov. 14, 1994 PCT Filed Sep. 16, 1993 PCT Pub. No. WO94/08111 PCT Pub. Date Apr. 14, 1994.The invention concerns a five-arm concrete-distribution rig (20) mounted on a vehicle. Arms (1, 2 and 3) can be folded together by pivoting in opposite directions about hinged joints (B and C), which are capable of pivoting through approximately 180 DEG , to form a "Z". In order to make it possible to supply concrete through several hoses in parallel, to upper stories and over obstacles, the invention proposes that arms (3, 4 and 5) can be folded together by pivoting in the same direction about joints (D and E), which are capable of pivoting through approximately 270 DEG , to bring them up against arms (2 and 3) in the vicinity of hinged joint (C).</p> |
