| 摘要 |
<p>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.</p> |
