Patent ID: 9632329
Date: 2017-04-25
CPC Classifications: B23K,G02C

Claim:
1. A method of manufacturing a metal frame for spectacles comprising a front frame with a pair of lens-carrying eyepieces of metal wire on each of which there is attached on the outermost part a hinge projection for a corresponding temple arm, and a central bridge for support on the nose connected to the lens-carrying eyepieces and incorporating a pair of nose pads, the method comprising: providing the bridge as a single part obtained by bending a wire of metal material, forming a central cross-piece ( producing a recess, through milling with the removal of material, on each of the said lengths of the central bridge, each recess forming a respective seat which is at least partly interference fitted to a corresponding external surface portion of the metal wire of the corresponding lens-holding eyepiece opposite to it in the zone in which they are attached, making a weld between each of the lengths of the central bridge and the corresponding portion of the lens-holding eyepiece, corresponding to the respective recess, to secure each lens-holding eyepiece to the central bridge for support on the nose.