| 摘要 |
PROBLEM TO BE SOLVED: To smoothly rotate a container main body on a rotary supporting ring even when warpage is generated on a closing plate at a bottom section opening in the bottom section structure of a liquid container such as an electric water heater. SOLUTION: A notched section 16 is provided on the bottom section opening of a container main body, and a closing plate 15 which closes the bottom section opening, a closing piece 17 which closes the notched section 16 is provided. Then, a guide supplementary section 22 is provided on both sides of the closing piece 17, and the guide supplementary section 22 is fitted in a fitting recess section 21 at the final end section of a guide groove 18 by bending upward and gently tilting the guide supplementary section 22.
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