| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a vacuum heat insulation container in which a weld part can be easily repaired when any defect in airtightness of the weld part is found, and the vacuum state of the container cannot be maintained after once assembling a basic structure of the vacuum heat insulation container having the weld part, or when any defect is generated in the weld part later, and the vacuum state cannot be maintained. <P>SOLUTION: In the vacuum heat insulation container, a container body includes an inner container and an outer container, an internal space formed between the inner container and the outer container is kept in a vacuum state, and a required weld part to keep the internal space in an airtight state is provided at a part exposed to the side opposite to the internal space of the container body. For example, a bent part 241 which is bent inwardly is formed on a lower end of a second sidewall 24 separate from a bottom plate 22 of the inner container, the bent part 241 is placed on the bottom plate 22 in a vicinity of an edge of the bottom plate 22, and a fore end of the bent part 241 is welded to the bottom plate 22 to form a weld part W1. <P>COPYRIGHT: (C)2012,JPO&INPIT |
