| 摘要 |
<p>The invention relates to a supporting wall (1) for a spool, having a general shape consisting of at least four sides, comprising an outer surface (3) and an inner surface (2) mutually connected via side surfaces (4), at least two of which comprise stacking projections (20) and stacking recesses (21), the shape of which is complementary to that of the stacking projections, the inner and outer surfaces being provided with stiffening ribs (12, 13, 15, 16) and a central receiving system (6) for a spool-supporting sleeve (7). According to the invention, the wall is provided in the form of a hollow body, which is at least partially closed on the side surfaces thereof (4), and inner (2) and outer (3) surfaces locally comprising linking bridges (9) between the inner (2) and outer (3) surfaces.</p> |
