| 摘要 |
A container formed of resin includes a body portion 4 having an approximately square cross-sectional shape, and a vertically elastically deformable cushion portion 27 provided downwardly of a vertical center of the body portion 4, the cushion portion 27 having along its entire circumference a groove 28 which is formed progressively wider radially outwards. The container further includes an arcuate portion 32 provided at a corner portion in a cross-sectional shape of the groove 28. |
