| 摘要 |
PROBLEM TO BE SOLVED: To prevent a hinge from easily breaking or a crack from occurring on a hinge attaching plate even if impact is applied to a top face of a cap. SOLUTION: A cap with snap hinge comprises an insertion piece connected via a snap hinge wherein a lid comprises a pair of hinges and an elastic piece having hinges at both ends and positioned at a flexed center wherein the insertion piece is inserted into an insertion piece insert hole on a cap body. In this case, a thin part 123 contiguous with a hinge 102 is formed on an insertion piece side piece 122 of the flexed elastic piece 120 of the snap hinge, or a plurality of thin parts are formed on the insertion piece side piece 122. |
