| 摘要 |
The invention concerns a device for air-actuated (3) insertion (1) of a core belt (4) provided with a shuttle in a conduit (2). The invention is characterised in that it comprises an expandable element (6) and an extensible envelope (7) comprising a first passage (8) for said core belt, and one or several passage(s) for receiving said expandable element (6) adapted to inflate the envelope (7), and to inject compressed air (3) into the conduit (2) thereby enabling to drive the shuttle (5) along the conduit (2). |
