| 摘要 |
PROBLEM TO BE SOLVED: To provide a hinge cap in which a side surface of the cap is not provided with any protrusion, its top surface has no slit and it has a superior snapping action. SOLUTION: One side of a circumferential wall 110 of a cap main body 100 is connected to the lower end of a central connecting band 310 through an arcuate hinge 312 of which central point is located below, and one side of a circumferential wall 210 of a lid 200 fitted to the cap main body 100 is connected to the upper end of the central connecting band 310 through an arcuate hinge 311 of which central point is placed above it. One side of the circumferential wall of the cap main body 100 is connected to each of lower ends of a pair of left side connecting band 320 and right side connecting band 330 arranged at right and left symmetrical positions of the central connecting band 310 through arcuate hinges 322, 332 of which central points are placed below, respectively, and one side of the lid section 200 is connected to each of the upper ends of the left side connecting band and the right side connecting band through arcuate hinges 321, 331 of which central points are placed above, respectively. |
