RACK BEAM Russian patent published in 2024 - IPC A47B96/14 

FIELD: furniture.

SUBSTANCE: invention relates to beams for collapsible racks. Rack beam is made in the form of a closed circuit, which includes side walls, as well as upper and lower walls. In the upper part of the beam there is a locking system, which includes a two-layer upper wall and symmetrically located side roundings. Lock system is made of two overlapped elements. First element is a continuation of the side wall, which by bending passes into the side recess made in the form of a rounding, which by bending passes into the first side rounding and through the upper wall ends in the place of the second side recess made in the form of rounding on the outer side of the closed circuit. Second element is a continuation of the mating side wall, by bending passes into the side recess made in the form of a rounding, which by bending passes into the second side rounding and through the upper wall ends in the place of the first side rounding made in the form of rounding, on the inner side of the closed circuit. On parallel to each other side walls there are recesses in the form of roundings, which are stiffening ribs. Top and bottom walls are parallel to each other.

EFFECT: higher reliability of the beam.

2 cl, 2 dwg