| 摘要 |
PURPOSE:To sufficiently absorb a shock applied from the above against a container. CONSTITUTION:An upper surface part 82 of a container 52 is formed into a separate unit from the other part of the container 52, and a lug part 84 protrusively provided from the upper surface part 82 is welded to a container side surface part 52S. A lug part 90 protrusively provided from the side surface part 52S is welded to the upper surface part 82. Thus when applied a shock from the above against the container 52, deformation is easily started from the container side surface part 52S, and a large amount of impact energy is absorbed. |
