| 摘要 |
<p>PROBLEM TO BE SOLVED: To increase strength of a bottle body and to prevent at the same time deformation by collapse of the bottle body having reinforcement ribs and reinforcement panels. SOLUTION: At the upper part 10 of a trunk part 4, four stripes of transverse ribs 13, 14, 15 and 16, each formed in a V-shaped recessed groove extending in the circumferential direction, are formed, extending respectively from the front and the rear to the sides on the right and the left of the upper part 10. Collapse-preventing ribs 17, 18, 19 and 20 made up of discontinuos parts without ribs are formed at the transverse ribs 13, 14, 15 and 16 on positions respectively at the center of the sides on the right and the left of the upper part 10. Even though the strength is enhanced by the transverse ribs 13, 14, 15 and 16 for the whole body of the upper part 10, the sides on the right and the left of the upper part 10 become flexible by the collapse-preventing ribs 17, 18, 19 and 20. Thereby, the sides on the right and the left of a synthetic resin bottle body 1 are not collapsible easily, and collapse at the sides of the synthetic resin bottle body 1 can be prevented surely.</p> |
