Einwärmscharnierteil für Mittelteile von Brillenfassungen

摘要

The temple pieces of a spectacle frame are secured to lens rims of thermoplastic synthetic resin composition by a hinge assembly of which one element is partly embedded in the associated rim. It is a unitary metal piece having a baseplate portion from which an eye or barrel projects. The embedded portion consists of two transversely spaced barbed pins of partly rounded trapezoidal cross section which are inserted into blind, round bores of the rim while heated well above the softening temperature of the resin composition.