| 摘要 |
PROBLEM TO BE SOLVED: To provide a container which hardly deforms due to an external force such as the gravity of an object to be accommodated that is applied to a bottom wall.SOLUTION: A container 1 formed by heating a thermoplastic resin sheet includes: a bottom wall 11 having a surface 11U for mounting an object to be accommodated and a rear surface 11L which is a surface in an opposite side to the surface 11U; a frame-shaped side wall 12 erected from the outer peripheral edge of the bottom wall 11; a plurality of first long ribs 13 which are provided so as to be protruded on the side of the outer peripheral edge from a center-part region of the surface 11U of the bottom wall 11, and are arranged so as to be separated from each other in a circumferential direction of the bottom wall 11: and second ribs 14 that are provided so as to be protruded in a position between the center-part region and the outer peripheral edge of the surface 11U on which the first rib 13 is provided in the circumferential direction so as to surround the center-part region. In the second rib 14, a plurality of protrusions which are long in the circumferential direction are arranged so as to be separated from each other in the circumferential direction, and each of the protrusions crosses the first rib 13. |
