| 摘要 |
A cosmetic case including a container and cover part connected by a hinged joint, in which the hinge pin is formed of the same synthetic resin as the container and cover parts. The hinged joint is formed by hinge blocks (integrally formed on the container part) pivotably connecting to a hinge body (integrally formed on the cover part) by a hinge pin inserted through a round bore formed through the hinge blocks and hinge body. The synthetic resin hinge pin is a concentric three layer structure in radial cross section in which the outer and inner layers are joined by an adhesive middle layer. A collar flange and center bore are formed on the hinge block and hinge body, respectively, around the hinge pin.
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