Improved service-life, low-profile, retrofittable,...

B - Operations – Transporting – 61 – F

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Details

B61F 5/30 (2006.01)

Patent

CA 2114120

An improved service-life, low-profile, elastomeric mounting (18) for placement between the side-frame-pedestal-jaw roof (22) and the axle-box or axle-bearing adapter crown (20) on a three-piece, railroad-car truck. The mounting (18) minimizes the damaging compression induced edge strains resulting from the cocking motions imposed on the elastomeric mounting (18) during railroad car braking and rocking. The addition of shims (28), specialized elastomer contouring (40), graded thicknesses (t1;t2) of the elastomeric layers (30, 31) in combination with high shape factor of the elastomeric layers (30, 31) allows the compression induced edge strains to be significantly reduced and results in extended service-life of the elastomeric mounting (18).

Dispositif de montage élastomère, de profil bas, ayant une vie utile améliorée (18) destiné à se placer entre la partie supérieure (22) de la mâchoire du cadre latéral et la couronne d'adaptation (20) de la boîte d'essieu sur un convoi de ferroutage en trois parties. Le dispositif de montage (18) réduit au minimum les contraintes en bordure induites par la compression et résultant des mouvements d'armement imposés sur le montage élastomère (18) pendant le freinage et le balancement. En ajoutant des cales (28), en prévoyant un contour spécial (40) de l'élastomère, ainsi que des épaisseurs calibrées (t1; t2) des couches élastomères (30, 31) en combinaison avec un facteur de forme élevé des couches élastomères (30, 31) on peut réduire considérablement les contraintes induites par la compression et prolonger la vie utile du dispositif de montage élastomère (18).

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