| 摘要 |
The strip in its part opposite to the gap opening is formed with a pressure surface (5, 15) at right angles to the outer side (1, 10). The strip outer side reaches further upwards from the gap opening than the pressure surface. The strip between the outer side (1, 10) and the gap (3, 12) has an edge (4, 14) around which the sheet is pressed by pressure on the pressure surface (5, 15). The edge (4, 14) is toothed, with the teeth (4) formed in the plastic strip itself. The strip contains a thin blade (13) with teeth (14), and is provided with an adhesive body (7, 17) on its outer side. This body has greater adhesion against the strip than against the sheet (9). |
