Improved drawbar bearing block

B - Operations – Transporting – 61 – G

Patent

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Details

B61G 9/20 (2006.01) B61G 9/24 (2006.01)

Patent

CA 2111257

A drawbar bearing block for a slackless drawbar system which connects adjacent ends of a pair of railway cars in a semi-permanent manner. Such bearing block includes a top portion supported and retained in a hemispherical recess which extends partially around a pin opening formed in a pin receiving opening disposed in a butt end of a drawbar. Such top portion of the bearing block has an outer surface which closely matches a surface of such hemispherical recess and an inner surface having a cylindrical shape to receive a pin therein. There is at least one recessed opening formed in the top portion adjacent a bottom surface and an outer surface thereof. A bottom portion is supported and retained in such hemispherical recess and assists in supporting and retaining such top portion in the hemispherical recess. Such bottom portion of the bearing block includes an outer surface which closely matches the surface of such hemispherical recess and an inner surface having a cylindrical shape to receive a pin therein. Such inner surface being in alignment with such inner surface of such top portion. There is at least one tab-like member extending upwardly from an upper surface of such bottom portion and adjacent said outer surface thereof. Such tab-like member matingly engages with the recess in said top portion. Such tab-like member has an outer surface which closely matches the surface of such hemispherical surface.

Bloc d'appui pour un système de barre d'attelage sans jeu conçu pour joindre, de façon semi-permanente, les extrémités voisines de deux véhicules ferroviaires. Le bloc d'appui comprend une partie supérieure supportée et retenue dans un creux hémisphérique se prolongeant partiellement autour d'un orifice, destiné à recevoir un axe situé à l'extrémité de la barre d'attelage. La partie supérieure du bloc d'appui comporte une surface externe épousant de très près la surface du creux hémisphérique et une surface interne de forme cylindrique servant à recevoir un axe, et dans laquelle est formée au moins une ouverture en retrait dans la partie supérieure, près d'une surface inférieure et d'une surface externe. Une partie inférieure, qui est supportée et retenue dans le creux hémisphérique, aide à supporter et à retenir la partie supérieure dans le creux hémisphérique. La partie inférieure du bloc d'appui comprend une surface externe correspondant de près à la surface du creux hémisphérique et une surface interne de forme cylindrique destinée à recevoir un axe. Cette surface interne est alignée avec la surface interne de la partie supérieure. Au moins une pièce en forme de languette se prolonge vers le haut à partir de la surface supérieure de la partie inférieure et de la surface externe voisine. La pièce en languette s'enclenche avec le creux dans la partie supérieure et est munie d'une surface externe correspondant étroitement à la surface hémisphérique.

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