| 摘要 |
PROBLEM TO BE SOLVED: To provide a lunch box capable of securely engaging with a cargo collapse preventive ring and securely preventing cargo collapse without interference of an adhesive tape to fix a container body and a lid when lunch boxes are stacked. SOLUTION: The lunch box includes the container body to store lunch food, the lid to cover an opening of the container body in the sealed state, and the projection-shaped cargo collapse preventive ring formed in the upper outer circumferential part of the lid to prevent cargo collapse as the outer circumferential part of the container body enters when stacked. At least one facing part of the cargo collapse preventive ring is formed into a flat shape, and the flat shape and the container body are fixed to each other with the adhesive tape to constitute the lunch box. COPYRIGHT: (C)2009,JPO&INPIT
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