DEVICE FOR REPLACEMENT OF EAR PIECES, SIDE PIECES AND CROSSPIECES OF RIMLESS EYE-GLASSES AND EAR PIECES AND SIDE PIECES OF PLASTIC EYE-GLASS RIMS

摘要

FIELD: mechanics.;SUBSTANCE: invention is aimed at fabrication of rimless eye-glasses with lenses containing replaceable elements wherein connection and disconnection is between the lenses, the bearing element and the side piece connective part. The ends of the side piece part and/or ends of the connection element are individually connected to the eye-glasses middle part by way of a bearing element connected to the rim so that to enable its replacement with the mounted side piece parts an/or the crosspiece retained by the bearing element. In the lens and in the rim middle part, on the side of the crosspiece and/or the side piece there are holes drilled intended for retaining the bearing element threaded pins; the bearing element is attached to the eye-glasses rim or to the lens with two metal threaded pins and tightened with nuts. The connective part is pushed onto the bearing element having a basically T-shaped cross-section till the indentation in the connective part catches the pin of the threaded pin and the rod of the mounting pin or additional threaded pin.;EFFECT: simplicity and safety.;15 cl, 14 dwg