B - Operations – Transporting – 60 – G
Patent
B - Operations, Transporting
60
G
B60G 21/05 (2006.01) B21C 37/16 (2006.01) B60G 7/00 (2006.01) F16C 3/02 (2006.01)
Patent
CA 2644464
The invention relates to a twist-axle that includes a cross-beam member and two trailing arms, each trailing arm rigidly secured to the cross-beam member in one of two connection regions of the cross-beam member or formed integrally with and extending from one of the two connection regions. The cross-beam member is formed from a tubular blank and has a torsionally elastic central portion and two torsionally stiff connection regions. The cross-beam member has a wall thickness that varies longitudinally along the length of the cross-beam member from the torsionally elastic central portion to each of the torsionally stiff connection regions.
L'invention a pour objet un axe hélicoïdal doté d'une entretoise et de deux bras triangulaires longitudinaux, chacun de ces derniers étant raccordé à un endroit sur l'entretoise et faisant partie intégrante du raccord duquel il se dresse perpendiculairement. L'entretoise, formée à l'aide d'une ébauche tubulaire, comporte une section centrale torsible et deux sections de raccordement résistantes aux déformations de torsion. L'épaisseur de l'entretoise varie longitudinalement, de la section centrale torsible à chacune des sections de raccordement résistantes aux déformations de torsion.
Arcelormittal Tubular Products Canada Inc.
Blake Cassels & Graydon Llp
LandOfFree
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