| 摘要 |
PROBLEM TO BE SOLVED: To provide a lunch box formed by assembling small boxes, and allowing a user to engage each of the boxes not only in a transverse direction but also in a lengthwise direction while avoiding a lid part.SOLUTION: A lunch box is provided with: a body part comprising a box body having an outer shape in which an opening is formed on the upper side of a rectangular parallelepiped shape; a lid body closed by fitting into the opening of the body part so as to show at least part of the upper edge of the body part; a side engaging part and a side engaged part whose side surfaces are engaged with each other; an upper surface engaging part formed on the upper edge and appearing in a state of fitting the lid body of the body part into; and an upper surface engaged part provided on the lower surface of the body part, and engaged with the upper surface engaging part in the case of supposing that the upper surface engaged part faces the upper surface so as to be superposed on each other. |
