| 摘要 |
<p>The support comprises at least one sheet (2) of a substantially rigid and foldable material having a display face (3), elastic return and constraint bands (44) for making the display face of the sheet convex, and a plurality of inserts (18-20) for keeping the display face of the sheet in the convex state, opposing the elastic constraint bands, and exerting their force in a discretely distributed way along the display face of the sheet. The inserts (18-20) have a length equal to the distance between the two lateral edges (8, 9) of the sheet (2), in its convex state, the sheet being extended by two sets of lateral tabs (12, 13, 14, 15, 16, 17) intended to form two sets of dihedrals for receiving the inserts, the elastic bands (44) interacting with the inserts and the tabs (12-17) and exerting, in addition to their horizontal constraint force, vertical forces in opposite directions (49, 50) to keep the inserts at the correct height in the convex state of the display face.</p> |
