FIELD: packaging industry.
SUBSTANCE: box is a four-valve corrugated cardboard box formed from a sheet blank by the inflection method along the fold lines of the lower side wall flaps towards each other to form the bottom used to house the lodgment with the nests for green vegetables or seedlings. Adjacent bottom valves are connected through a fold line, coinciding with the fold line of adjacent side walls, the continuation of which these valves are. The fold line of each lower valve is discontinuous in the middle part of the valve to form two portions facing each other, the ends of which are connected to additional fold lines directed from these ends to the edge of the valve perpendicular to these portions to press down portions of the surface of the lower valves located between the additional fold lines the adjacent lower valves, into the cavity of the box and form a cross-shaped in the plan of the bottom. Two parallel lines of a weakened section are formed along the perimeter of the side walls with the formation of a tear tape to separate the upper part of the box from the lower one.
EFFECT: invention provides good ventilation of the box.
3 cl, 6 dwg
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Authors
Dates
2017-06-29—Published
2016-06-21—Filed