| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a thin-walled plastic bottle in which the repulsive restoring force to the external force is improved. SOLUTION: A body wall part 3 of a thin-walled plastic bottle is formed cylindrical and a polygonal shape in the horizontal section, a plurality of corrugated ribs 6 comprising a corrugated recessed part to annularly wind the body wall part 3 are formed in the vertical direction, and a valley part 8 of each corrugated rib 6 is arranged across a ridge line 5 formed on the body wall part.</p> |
