B - Operations – Transporting – 21 – G
Patent
B - Operations, Transporting
21
G
B21G 3/12 (2006.01)
Patent
CA 2131566
A method and apparatus for forming a head having a controlled predetermined shape on an end of an elongate member, such as a wire, which is formed into a fastener where an end portion of the wire is secured in a predetermined position and axially compressed to radially, outwardly expand a predetermined amount of wire material to form the head on the wire and where material flow is directed during axial compression to provide the controlled predetermined shape of the head.
Méthode et appareil de façonnage de tête dont la forme prédéterminée est contrôlée à une extrémité d'un objet allongé, par exemple un fil. Le fil prend la forme d'un dispositif de fixation auquel une extrémité du fil est fixée dans une position prédéterminée, et comprimée axialement de manière à élargir radialement vers l'extérieur une quantité prédéterminée du matériau de fil pour former la tête se trouvant à l'extrémité du fil. Un flux de matériau est dirigé vers la tête pendant la compression axiale pour lui donner la forme contrôlée et prédéterminée recherchée.
Binder John
Gabriel William L.
Schniedermeier Henry W.
Shelton Lawrence S.
Sygnator Henry A.
Finlayson & Singlehurst
Illinois Tool Works Inc.
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