Patent attributes
A pair of eyeglass includes an eyeglass frame having a central portion with two frame portions respectively and receiving two lenses. The central portion includes a notch between the frame portions. An upper portion of the central portion includes an insertion hole extending in the vertical direction. An opening is defined in an upper end of the insertion hole. A lower portion of the central portion includes an engaging groove extending in the vertical direction and aligned with the insertion hole. At least one fixing hole extends forward from a rear face of the lower portion and intercommunicates with the engaging groove. A coupling block is inserted downwardly into the insertion groove and the engaging groove. At least one fastener extends through the at least one fixing hole from the rear face of the lower portion and engages with at least one fixing hole of the coupling block.