| 摘要 |
<p>A push-down gate in a panel section of a can end, below an aperture therein and being connected to the panel at the aperture by a hinge means wherein: said aperture comprises a short, inwardly-inclined lip upstanding from the end panel section, having an outer wall portion upfolded from the end panel, an inner wall portion forming the aperture orifice and a reverse fold at the crest of the lip interconnecting the inner and outer wall portion an inward fold about the base of the inner wall portion forms a gate panel below the aperture, said inward fold being on a short radius and being adjacent to the upfold radius from the end panel to the outer wall portion; and a score cut in the gate panel at the inward fold extending about the panel from each side of the hinge means defines the push-down gate.</p> |
