| 主权项 |
1. Stackable container of plastic material comprising a body extending along a principal axis and having an overall transverse extension D, a shoulder on an upper side of the extension of the body, a neck in the extension of the shoulder, and a bottom on a lower side of the extension of the body, the shoulder comprising, beneath the neck, a frustoconical surface, and at its junction with the body, a peripheral face defining a support plane substantially perpendicular to the principal axis, the bottom comprising:
an annular seat defining a seating plane complementary to the peripheral support face and having an outer transverse extension Dext; a conical arch that extends from the seat towards a central zone;characterized in that:the outer transverse extension Dext of the seat and the overall transverse extension D of the body are such that:DextD≥0.8the arch has a peripheral support section that is complementary to the frustoconical surface, which extends between the seat and a central disc suitable for receiving the neck of an underlying container,the seating plane and the peripheral support section of the arch define a contact surface, the projection of which on the seating plane has a surface area SC such that:ScS≥0.4where S is the surface area delimited by an outer perimeter of the seat. |
