B - Operations – Transporting – 61 – F
Patent
B - Operations, Transporting
61
F
B61F 5/52 (2006.01)
Patent
CA 2174375
A lightweight sideframe having a solid and open, unitary cross-sectional I-beam shape, is structurally improved by strengthening both sides of the sideframe with cross-bracing at each pedestal jaw area. The cross-bracing laterally stiffens the sideframe, eliminating the succeptability to twisting of the I-beam shape when a transverse load is experienced. The increased lateral stiffness at the jaw area also strengthens the total lateral strength of the sideframe, allowing some removal of metallic mass from the sideframe spring seat plate. The improved lateral sideframe strength also contributes to an increase in the threshold speed of truck hunting.
Longeron de bogie léger, ayant la forme d'une poutre en I de coupe unitaire, ouverte et solide. Le longeron est amélioré structurellement, ses deux côtés étant renforcés avec un ensemble de traverses à chaque mâchoire d'une plaque de garde. Les traverses renforcent latéralement le longeron, éliminant ainsi la probabilité de torsion de la poutre en I s'il se produit une charge transversale. La rigidité latérale améliorée de la mâchoire renforce également la force latérale totale du longeron, tout en permettant le retrait d'une quantité de masse métallique de la plaque de siège de ressort du longeron. La force latérale améliorée du longeron permet également une augmentation du seuil de vitesse du mouvement de galop du bogie.
Amsted Industries Incorporated
Borden Ladner Gervais Llp
Nassar Rami V.
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