| 摘要 |
In particular, the collection device comprises a chassis (A), means for supporting the device above ground datum, a source (B1) for establishing a flow of air, a duct (B) directly or indirectly supported on the chassis (A) for conveying loose material entrained in a stream of air from said source (B1) towards a downstream region thereof from a collection mouth (2) at an upstream and thereof, a removable collection container (C) for collecting said loose material and disposed in proximity to the downstream region of the duct (B), at least one, air outlet (3) disposed adjacent the collection mouth (2), each aperture serving to direct least a portion of the stream of air downstream of the collection mouth (2) so as to draw loose material into the mouth (2) and transport the same via the duct (B) into the collection container (C). <IMAGE> |
