Container having a self-supporting cover for an outlet

A container for transporting and storing liquid, viscous, or free-flowing substances, the container comprising a bottom, a side wall, and at least one outlet recess in the bottom and/or the side wall, in which an outlet valve is arranged or arrangeable and which is closable via a cover on an outside of the container,

• the cover comprising a base portion, via which the cover is attached or attachable to the container, and a closure portion, which is hinged to the base portion via a hinge assembly so as to be pivotable about a rotation axis,
• said closure portion being transferable from a first position closing the at least one outlet recess into a second position releasing the at least one outlet recess,
• the hinge assembly being configured to hold or lock the closure portion in the second position releasing the at least one outlet recess in a self-supporting manner, and
• the hinge assembly being configured as a curved film hinge defining a longitudinal dimension and comprising a bend along the longitudinal dimension, such that the curved film hinge is curved relative to the rotation axis, and such that the curved film hinge is prestressed so as to bias the closure portion toward the first position or the second position, depending on a relative position of the curved film hinge with respect to a pressure point.