| 摘要 |
<p>A convection barrier (2;2a;2b;2c) for a freezer (1;1a;1b;1c) comprises
- a foil (20;20a;20b;20c) having at least one opening (230;230a;230b;230c) therein,
- storage and transport means (21,22;21a,22a,211a,221a, 25a,27a;21b,22b,25b;21c,22c,25c,28c) for storing and moving the foil (20;20a;20b;20c) so as to transport the at least one opening (230;230a;230b;230c) to a desired position in order to allow access through the at least one opening (230;230a;230b;230c) to the interior of the freezer (1;1a;1b;1c) at the desired position, and
- tensioning means (28a;28b;28c,25c) for continuously keeping the foil (20;20a;20b;20c) in a tensioned state.</p> |
