| 摘要 |
A spectacle set combines with friction hinges can be used in flip up spectacle frames as well as flip up clip-on frames with magnetic arrangements. The friction hinge comprises a tubular sleeve, a friction receiving portion, a spring and an adjustable screw. The tubular sleeve has an open side for inserting the friction receiving portion which having a flat surface or a spherical surface, the hinge prong which connected to the friction receiving portion passes through the tubular sleeve, and the spring being pressed on the friction receiving portion by the adjustable screw for obtaining friction force when the hinge prong is pivoted. The flip up spectacle frame comprises a frame chassis, a lens body and two friction hinges which connected to upper portions between the frame base and the lens body that allows the lens body to be able to flip up and stay up in any position when the flip up spectacle frame is in used. The flip up clip-ons frames comprises a primary frame having two end-piece magnetic arrangements, or a bridge magnetic arrangement, or two upper lens-rim magnetic arrangements, and an auxiliary frame having two corresponding interlocking means for engaging with those magnetic arrangements. Two friction hinges which connected to upper portions of the auxiliary frame allow the auxiliary frame be able to flip up and stay up in any position as the wearer may desire when the auxiliary frame securely mounts onto the primary frame by their magnetic attraction.
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