| 摘要 |
The invention provides a glasses spring hinge mechanism, wherein elastic parts are clamped with each other and are difficult to release from each other through a simple structure, so that the elastic force can be effectively transferred. Meanwhile, the metal fatigue caused by the repeated deformation of an elastic wire is also avoided so as to improve the durability thereof. The inner side surfaces of lug heads (2) arranged respectively on the left and right ends of a glasses front frame (1) are engaged with elastic wires bent into be bow-shaped and the front ends thereof are bent to be U-shaped, so as to form the arm part (5) of a reentrant front end (51). Meanwhile, the reentrant front end (51) is disposed close to washer components. The other washer (31) of a leg (3), compared with thefront end of a pivot branch hole (31a), is bent to be hook-shaped as a hook part (32). When the leg (3) is expanded, the inner side surface of the hook part (32) is fixed to the inner side surface ofthe arm part (5) so as to be pressed. Through the bending elasticity of the arm part (5), the leg (3) is pressed toward the folding direction. |
