Variable thickness tubular doorbeam

Details Variable thickness tubular doorbeam Variable thickness tubular doorbeam

B - Operations, Transporting

60

J

B60J 5/04 (2006.01)

Patent

CA 2447992

A method of manufacturing an improved doorbeam having increased impact strength and reduced weight. The doorbeam is formed from a continuous metal web having opposing lateral edges and a varying thickness therebetween. The stock is rolled into a tubular configuration, and the lateral edges are welded together. The resultant beam provides extra reinforcing material where needed to provide a balance between weight and strength.

L'invention concerne un procédé de production d'un renfort de porte amélioré présentant une meilleure résistance aux impacts et un poids réduit. Ce renfort de porte est formé à partir d'une bande métallique continue comportant des bords latéraux opposés et dont l'épaisseur varie entre ces bords. Le matériau est roulé de façon à obtenir une configuration tubulaire, et les bords sont soudés l'un à l'autre. Le renfort ainsi produit constitue une pièce assurant un renforcement considérable en un emplacement nécessitant un équilibre entre poids et résistance.

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