| 摘要 |
A sucking device comprises first sucking means (5) having a first sucking opening (6), second sucking means (20) having a second sucking opening (19) and switching means (18) that enables said sucking device (1) to assume alternatively a first operating configuration (A), in which said first sucking opening (6) and said second sucking opening (19) are both connected to a sucking element of said sucking device (1) arranged for interacting with a product to be sucked, and a second operating configuration (B), in which said first sucking opening (6) is connected to said sucking element and said second sucking opening (19) is connected to a discharging opening (22) of said first sucking means (5).
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