| 摘要 |
<p>The device has screw-nut assemblies with a nut (3) that is integrated in an upper edge of a form panel (1) and a screw (2) is equipped with a lower edge of the superposed panel. A prepositioning and superpositioning unit (4) of each assembly forms prepositionment and preliminary connection between horizontal edges of the superposed panel. The unit is formed by superposition and prepositionnement parts e.g. sleeves (4', 4''), respectively integrated to bottom and top plates (5, 6) of the panel.</p> |
