| 摘要 |
PROBLEM TO BE SOLVED: To heat-insulate and hold side faces between an outer container and an inner container and to prevent the mutual blocking of inner containers in the mutually laminated state of the inner containers while preventing the looseness of the inner containers.SOLUTION: A double container includes an outer container made of paper with a side face formed in tapered shape, and an inner container 13 made of synthetic resin and having a tapered side face and a bottom part fitted to the inside of the outer container. A side face 21 of the inner container 13 has an upper stepped part 22 and a lower stepped part 23 in sequence toward a bottom part 20 from an opening 19 provided with a flange part 19a. The side faces of the outer container and inner container 13 are bonded to each other on the opening side from the upper stepped part 22, and a clearance is formed between the side face of the inner container 13 and the side face of the outer container on the bottom side from the upper stepped part 22. The lower stepped part 23 has a protrusion 25 projecting in an outward inclining state. When the inner containers 13 are stacked, a protrusion 25 of one inner container 13 is seated at the corner of the lower stepped part 23 of the inner container 13 on the lower side and the side face 21 on the upper side. |
