| 摘要 |
A portable cosmetic container basically comprised of a container, cover, and hinge pin, all fabricated from synthetic resin to allow the container to be recycled as a completely plastic item while providing a stable free-stop function. The hinge structure includes a hinge pin inserted within a continuous bore formed in a hinge block integrally formed on the cover part, and a hinge body integrally formed on the container part. Applying friction to said hinge pin maintains the cover at any angular open position through friction between the hinge pin and hinge block hole by a slight interference fit between the hinge pin and hole. Splines are gouged in the hinge block hole to prevent rotation of said hinge pin. The spline fixedly secures the hinge pin within the hinge body through interference fit joint.
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