CPC B65D 51/002 (2013.01) [B65D 51/20 (2013.01); B65D 2251/0015 (2013.01); B65D 2251/0093 (2013.01)] | 20 Claims |
1. A sealing structure comprising:
a lid comprising a first lid face, a second lid face opposite to the first lid face, and a fragile area between the first lid face and the second lid face;
a cover comprising a first cover face facing the second lid face and covering the fragile area, and a second cover face opposite to the first cover face, wherein a first distance of a gap between the second lid face and the first cover face is substantially equal to or less than a second distance between the first cover face and the second cover face; and
a connector configured to connect the lid and the cover,
wherein the cover further comprises:
a proximal end portion connected to lid through the connector;
a distal end portion opposite to the proximal end portion; and
an extension portion extending along the second lid face between the proximal end portion and the distal end portion,
wherein the extension portion decreases in thickness from the proximal end portion to the distal end portion, and
wherein the gap is maintained from the proximal end portion to the distal end portion.
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