PACKAGING MEMBER OF THERMOPLASTIC MATERIAL WITH AT LEAST ONE CELL Russian patent published in 2007 - IPC B65D85/60 

FIELD: storage and transportation of articles especially sensitive to pushes or compressive actions.

SUBSTANCE: packaging member is made from thermoplastic material with at least one cell made in the form of truncated cone and characterized by following ratios of its geometric parameters: H_c/D_cn≤0.5 and α≥α_f, where H_c is height of cell, D_cn is nominal diameter of cell defined as diameter of nominal cylindrical cell made in the form of circular cylinder having height of H_c and side surface area S equal to area of side surface of cell, so that D_cn=S/πH_c, where π is irrational number expressed in the form of endless terminate decimal fraction: π=3,14159265358...; α_c is angle of inclination of cell side surface generatrix relative to nominal perpendicular to cell bottom plane, drawn from point of intersection of said generatrix with cell bottom plane toward this generatrix; α_f is friction angle of thermoplastic material. Packaging member of such structure is readily withdrawn from stack.

EFFECT: increased strength, simplified and less expensive manufacture process and reduced damage from pushes and compression forces.

2 dwg, 1 tbl