Container bottom base provided with bi-concave arch

Abstract

To provide a container that brings a good compromise between blow-ability, lightness and rigidity.SOLUTION: A plastic container according to the invention has a main axis, and comprises: a body (5); and a bottom base (6) extending from a lower end of the body (5). The bottom base (6) includes: a peripheral seat (7) defining a laying plane; a concave arch (10) extending from the periphery of the central zone (11) of the bottom base (6) to the peripheral seat (7) and having a rounded outline with a concavity facing outward from the container; and a series of principal reinforcing grooves (13) extending radially from the central zone (11) to at least the peripheral seat (7). The concave arch (10) has two annularly tangentially continuous concentric regions, i.e. a central region (15) and a peripheral region (16), which are in continuity with each other and presenting two different radii of curvature, and the peripheral region (16) has a radius of curvature smaller than that of the central region (15).SELECTED DRAWING: Figure 3

Images