(57) A nestable cup 11 or other container comprises a bottom 3 and a side wall 2, and
includes stacking means comprising an external, downwardly-facing shoulder 3 and an
internal, upwardly-facing shoulder 5. The internal upwardly-facing shoulder 5 is inclined
in a direction downwards and outwards and terminates at an acute-angled sharp convex
corner 9. When a plurality of identical cups or other containers 11 are assembled
together into an upright stack, the corner 9 makes localised contact with the external,
downwardly-facing shoulder 3, of the cup 11 or other container above the corner 9
engaging the downwardly-facing shoulder 3 away from its edge 10. Any vertical shock
loading applied to a stack of such cups 11 or other containers is cushioned by resilient
deformation of the external, downwardly-facing shoulders 3.
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