Inventors:
Jo A. Brilliant - Annapolis MD
International Classification:
B21D 3300, G02C 522
Abstract:
A fastening device for attaching a temple to an eyewire of an eyeglass frame, a method of fastening using the fastening device and apparatus for impelling an elongated pin forming part of the fastening device. The fastening device is so constructed and arranged to insert an elongated pin through aligned hinge barrels of a hinge to be connected with its pointed end received unit a backing member. A gun-like member is used for inserting an elongated pin having a head at one end and a pointed tip portion at its other end and a circumferential groove adjacent the pointed tip portion. The elongated pin is so constructed and arranged the backing member that receives the pointed tip portion and the circumferential groove of the elongated pin therewithin when the enlarged head of the elongated pin is fully inserted through aligned hinge barrels and into the backing member. The backing member is preferably of distortable material so that it can distort within the circumferential recess when the pin is driven into the backing member. The resulting hinge avoids rough ends of prior art fastening devices.