| 摘要 |
A detachable hinge system between a primary eyeglass and an auxiliary eyeglass is provided to reduce a contact area by forming an elastic hook and a rotatable hinge member as one body. A detachable hinge system between a primary eyeglass and an auxiliary eyeglass includes a fixing hinge member and a rotatable hinge member(110). The fixing hinge member is made of magnetic material and is installed in the middle of an auxiliary eyeglass support. The auxiliary eyeglass support is installed over a pair of glass frames or glasses to form at least one hooking groove(104) including a nonuse hooking groove along a lengthwise direction on a main surface. The rotatable hinge member has an engaging groove, a permanent magnet, and an elastic protrusion. The engaging groove is fixedly installed on a bracket(78) installed over the pair of auxiliary glass frames or glasses. The permanent magnet is installed in the engaging groove and an inner diameter of the permanent magnet is equal to the inner diameter of the fixing hinge member. The elastic protrusion is adjacent to the permanent magnet and has a protrusion engaged with the hooking groove during the rotation process.
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