System for fastening bridge and temples in the manufacture of eyeglasses

摘要

The invention relates to a system for fastening the bridge (30) or the hinge elements (10, 20) connecting the temples (A) to the lenses (L) of eyeglasses, where the ends of the bridge (30), as well as each of the ends (12, 22) of the temple connecting hinge elements (10, 20) which is directed towards the respective lens is furnished with a respective fork-shaped structure, with at least one pair of prongs (33-34, 36-37, 13-14, 23-24) lying in the plane at right angles to the plane of the lenses and where each lens is provided with holes (61-62, 63-64) located at the points of connection with the ends of the bridge (30) and/or of the temple connecting hinge elements (10, 20). The holes are equal in number to the number of prongs on the respective fork-shaped structures and comprise, inside them, respective tubular sleeves (53, 54). The prongs of each fork-shaped structure are pressed into the tubular sleeves, are flat, and have lateral walls (13a-13b, 14a-14b, 23a-23b, 24a-24b, 33a-33b, 34a-34b, 36a-36b, 37a-38a) which are flat and smooth and other walls which are knurled.

主权项

1. A system for fastening at least the bridge (30) or at least the hinge elements (10, 20) connecting the temples (A) to the lenses (L) of eyeglasses, where the bridge and the temple connecting hinge elements are made by die forming or punching out from a metal alloy sheet and where the ends of the bridge (30), and each of the ends (12, 22) of the temple connecting hinge elements (10, 20) which is directed towards the respective lens, is furnished with a respective fork-shaped structure, with at least one pair of prongs (33-34, 36-37, 13-14, 23-24) lying in a plane at right angles to the plane of the lenses and where each lens is provided with holes (61-62, 63-64) located at the points of connection with the ends of the bridge (30) or of the temple connecting hinge elements (10, 20) or both, these holes being equal in number to the number of prongs on the respective fork-shaped structures and comprising, inside the holes, respective tubular sleeves (53, 54), the prongs of each fork-shaped structure being press fitted into the tubular sleeves,
wherein the prongs of the fork-shaped structures are flat and have vertical walls (13a-13b, 14a-14b, 23a-23b, 24a-24b, 33a-33b, 34a-34b, 36a-36b, 37a-37b) which are flat and smooth.