| 摘要 |
<p>The invention relates to a closure membrane (2) with a closure head (5) and a retaining border (3), the closure head being connected to the retaining border via a connecting wall adjoining the outer border, with the entire arrangement being of essentially cup-shaped design, the closure head preferably being of a thickness which increases outwards from the center. The connecting wall is attached to the closure head via a connecting web (51) which is of lesser thickness than the border region of the closure head and which in the rest position of the membrane projects radially inwards from the connecting wall.</p> |
