Hot-Fillable Plastic Container Having Vertical Pillars and Concave Deformable Side-Wall Panels

摘要

The hot-fillable plastic container (1) comprising a base and a body extending upward from the base; the body (11) comprises a deformable cylindrical sidewall portion (110) defining a central vertical axis (1a), wherein said deformable cylindrical sidewall portion (110) comprises at least two vertical pillars (111) arranged along the body circumference. Each vertical pillar (111) is joined to the next vertical pillar (111) by a generally concave deformable sidewall panel (112) having a concave arc-shaped transverse cross section of curvature radius (R). The curvature radii (r) of the vertical pillars (111) are smaller than the curvature radii (R) of the generally concave deformable panels (112), and each transition between a vertical pillar (111) and a generally concave deformable panel (112) is smooth without any convex portion. The large curvature radius (R) of each generally concave deformable panel (112) allows an inward deformation of each panel (112), and each pillar (111) is slightly pushed outward and is slightly deformed with a small reduction of its curvature radius (r),under the vacuum created inside the container by the volume reduction of a hot-filled product during cooling.