Lens connection structure for frameless glasses

摘要

Disclosed is an improved lens joint structure for frameless spectacles. The lens (6) has a circular joint hole (7) and at least one engagement recess (9) at its temple-to-lens or bridge-to-lens jointing areas. A joint part (3) having at least one engagement projection and a resin collared-bushing (10) having a cylindrical piece and a collar (13) integrally connected to the base circumference of the cylindrical piece. The bushing is put on the lens with its cylindrical piece press-fitted in the joint hole of the glass, and the joint part is put on the bushing with its engagement projection facing the engagement recess of the lens at the existence of the intervening bushing collar. Then, these parts are pushed together, thereby causing the engagement projection to partly deform the bushing collar until the deformed part provides a bulge on the other side to invade the engagement recess of the lens. Thus, the temples and the bridge are fixed to the lenses without permitting rotation relative to the lenses. IMAGE