System for assembling folding extension with plate of table by hinge, has extension extended at deployment end till to support point so that pull-effort distance is greater than thickness of extension

摘要

The system has an extension (3) provided with a projection (4) of a side of a hinge (2) that is supported under a face of a plate of a table (1), where the extension is extended at a deployment end (5) till to a support point (D) so that pull-effort distance (B) is greater than thickness of the extension or distance (C) between the hinge and the support point. A section of the extension in contact with the plate of the table is tilted at an angle (H) formed between surface direction of the contact of the plate and tangent. The plate of the table comprises multiple extensions.