| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a synthetic resin round bottle body in which, even in a high-capacity bottle body, because a sufficient gripping property can be exerted, a recess that allows the reliable hooking of finger tips is formed, thus, which is excellent in the gripping property and can be used with confidence.SOLUTION: A synthetic resin round bottle body is formed by stretch blow molding. In the synthetic resin round bottle body, a mouth cylindrical part 2 is erected from the upper edge of a cylindrical trunk part 4 through a tapered cylindrical shoulder part 3. A waist part 6 with a reduced trunk diameter is formed at a predetermined height position of the trunk part 4. In the waist part 6, a recess 12 for finger hook is formed by continuously and periodically forming wave-like projections 10 in a circumferential direction.</p> |
