| 摘要 |
PROBLEM TO BE SOLVED: To provide a cap in which fingers are less likely to slip when detaching the cap from a container body, and which is excellent in design and easy to manufacture.SOLUTION: A cap 1 comprises a transparent upper cylindrical part 12 and a top lid part 14 which closes one opening end of the upper cylindrical part 12. The upper cylindrical part 12 comprises: a plurality of first polygonal surfaces 20 and second polygonal surfaces 22; an outer peripheral wall in which first ridge lines 24 and second ridge lines 26 are formed between the polygonal surfaces; a plurality of first polygonal surfaces 21 and second polygonal surfaces 23; and an inner peripheral wall in which first valley lines 25 and second valley lines 27 are formed between the polygonal surfaces. The first valley lines 25 and the second valley lines 27 of the inner peripheral wall are formed at a position transparent to the outer peripheral wall side so as to divide the first polygonal surfaces 20 and the second polygonal surfaces 22 of the outer peripheral wall into three regions respectively. |
