(57) The invention relates to a blank of folding sheet material such as cardboard for
the production of a box with flanges (5, 5') running along a first pair of side walls
(3, 3') at a distance from the top edge thereof. To improve the stacking strength
of such box and to allow that such box can be made of solid cardboard, the blank to
make such box is designed such that the flanges (5, 5') are connected to the second
pair of side walls (4, 4') by corner pieces (7, 7') which can have extentions (6,
6') so that angle sections are present in the corners of the box. According to the
present invention, the box can further be strenghthened by additional corner reinforcements
(11), which are also part of the blank. To improve prevention of mutual movement of
boxes in a stack, lips (8, 8') can be situated above the flanges (5, 5') at the first
pair of side walls (3, 3'), forming stops that can interact with stop edges (9, 9')
situated on the outside of the next box placed with the bottom on the flanges mentioned.
The blank to make a box according to one of the embodiments of the present invention
is designed such that waste of material is minimized.
|
|
