| 摘要 |
PROBLEM TO BE SOLVED: To provide a container which has higher cold insulation and heat insulation properties compared to a conventional one.SOLUTION: In a container, a columnar part 40A and an engagement protrusion 43 on a lower side of a relay member 40 corresponding to a bottom edge expansion part are respectively received in a concave bottom, which corresponds to a lower side concave reception part of a connection recess which a second side wall 30 has, and an engagement recess 35, and a columnar part 40B on an upper side of the relay member 40 corresponding to a top edge expansion part is received in a concave bottom 51B, which corresponds to an upper side concave reception part of a lid body 50. Thus, a clearance between the relay member 40, and the second side wall 30 and the lid body 50 is formed in a curved or bent shape, cool air and heat are hard to be leaked. That is, cold insulation and heat insulation properties can be enhanced compared with a conventional one.SELECTED DRAWING: Figure 6 |
