| 摘要 |
<p>A packing device includes a series of identical vertically corrugated streaming sheets, each streaming sheet comprising, in succession, in a direction parallel to the crests of the corrugations, at least two regions, namely a region of corrugations having a first amplitude and a region of corrugations having a smaller amplitude which are interconnected by a transition region. Each streaming sheet has an even number of regions of corrugations in phase opposition with respect to the adjacent region of corrugations and each streaming sheet has, in each transition region and in two longitudinal lateral regions a series of bosses having flat heads which project alternately from one side and the other of the streaming sheet in phase with the region of corrugations having the first amplitude which is adjacent and/or in phase opposition with respect to the adjacent region of corrugations of smaller amplitude. The streaming sheets are disposed alternately in one direction and in the opposite direction, which is achieved by turning over a streaming sheet, and are fixed to each other by an adhesive.</p> |
