| 摘要 |
PROBLEM TO BE SOLVED: To prevent a cushion part which absorbs weight applied from a vertical direction from deforming or breaking in a resin container having a trunk which is approximately square shape in a cross-sectional shape.SOLUTION: The resin container comprises a trunk which is approximately square shape in a cross-sectional shape and a cushion part which deforms elastically in a vertical direction and which has a groove whose width becomes wider on an outer part of a radial direction over the whole periphery on a lower part of a center of the trunk in the vertical direction. On corner parts of a cross-sectional shape of the groove, circular arc parts 32 are formed. |
