US Patent 10252870 Stacking-pattern calculating device and stacking system

A stacking-pattern calculating device including a storage portion that stores dimensions, weights, load limits, and numbers of the respective types of boxes and dimensions of the accommodating region; a smallest-combination calculating portion that calculates a combination of the boxes that forms a smallest unit, that have a constant height, and in which a bottom area becomes the smallest; a layer-combination calculating portion that calculates a combination that forms a layer in which the smallest units having the same height among the combinations of the smallest units are placed next to each other in a horizontal direction so as to have a rectangular shape in a plan view.