Abstract: Process for reducing the height of a box to the level of the apex of the stack of objects therein, wherein horizontal score lines are made at a height substantially equal to that of the apex of the stack of objects and such that the distance between the apex and the top of the box is greater than the half-width of the box. During a phase of simultaneous folding of the upper parts of the two side walls parallel to the length of the box toward the centre thereof, and before the upper edges or ridges of the upper parts meet, the angles of inclination of the upper parts are differentiated with respect to one another so that, when the upper parts meet, the upper edge of one covers the upper edge of the other, the upper parts sliding over one another during the final phase of folding the latter.

Abstract: Process for reducing the height of a box to the level of the apex of the stack of objects therein, wherein horizontal score lines are made at a height substantially equal to that of the apex of the stack of objects and such that the distance between the apex and the top of the box is greater than the half-width of the box. During a phase of simultaneous folding of the upper parts of the two side walls parallel to the length of the box toward the centre thereof, and before the upper edges or ridges of the upper parts meet, the angles of inclination of the upper parts are differentiated with respect to one another so that, when the upper parts meet, the upper edge of one covers the upper edge of the other, the upper parts sliding over one another during the final phase of folding the latter.

Abstract: The invention concerns a method for adjusting height of a crate or box made of flexible material, having a base and at least four side walls by folding. After the base has been placed in a generally horizontal, a horizontal crease is produced on each side wall, parallel to the base and at a height substantially equal to a top of a stack of objects. At least one oblique crease is produced in each corner of the crate, with one end located at the intersection between two horizontal creases and the other end located on an upper ridge of one side wall. The upper part of each side wall is folded towards the center of the crate, at an angle substantially equal to 90°. The various flaps are folded on one another, being separated by oblique creases, bringing the upper part of side walls in a substantially horizontal plane.