CHARNIERE A RESSORTS POUR LUNETTES.

摘要

A spring hinge for eyewear which enables the temples of eyeglasses to be opened beyond their regular position of use. The spring hinge having a one or two-piece locking element provided with a sliding element recess engageable with a sliding element and a snap-in pin recess engageable with a snap-in pin. A spring biases the snap-in pin into a stepped recess and thereby automatically locks the spring hinge.