To provide a cardboard box capable of stably storing thin-walled PET bottles capable of protecting the thin-walled PET bottles from weight generated by stacking, and being easily and manually conveyed.
The cardboard box which is intended for storing six thin-walled PET bottles with a capacity of 2L includes four laterally consecutive sidewalls, four lid flaps extending upward from the four sidewalls, and four bottom flaps extending downward from the four sidewalls. The cardboard box further includes a cardboard box body having grips in upper portions of at least the two opposed sidewalls out of the four sidewalls, and an inner lid which is laid over the six thin-walled PET bottles stored in the cardboard box body so as to hold the thin-walled PET bottles. The cardboard box is characterized in that the inner lid includes a bottom surface having bottle mouth insertion parts, and sidewalls which are equal in size to a length from an upper edge of the grip of the cardboard box body to a first crease.
SAITO HITOSHI
OTSUKA ATSUHIRO
