PLATE IN MANUFACTURED BOARD SHEET MATERIAL AND FLAN FOR THE PRODUCTION OF SUCH A PLATEAU

摘要

It is a tray (1) and a cardboard blank having a bottom (2) rectangular and a belt (3) of side walls (4, 5, 6, 7), namely two first walls provided each of a reinforcing element (9) forming a pillar and two second walls (4, 6), front and rear, each of the walls being formed by a double panel obtained by wrapping an inner flap (10, 11, 12, 13) on an outer flap (14, 15, 16, 17). The outer flap (16) of the second rear wall (6) is connected to the bottom by a first fold line (18), and to the outer flaps (14, 15) of the first two walls (5, 7) by second lines of folding (19, 20), the inner flaps (10, 11) being connected to said outer flaps (14, 15, 16, 17) by third and fourth fold lines (21, 22) double, the free peripheries (25, 26, 27, 28) opposite to the fourth fold lines (21, 22, 23, 24) being locked by friction and / or by snapping lugs with the upper face (29) and / or corresponding recesses bottom (2) of the plateau. The inner flaps (10, 11) of the first walls (5, 7) each comprise a rectangular central panel (43, 44) of length 1 less than the width L of the base (2), connected to the reinforcing element (9). ) forming a pillar folded and locked relative to said central panel (43, 44) by means of a side flap.