Truck frame for railway rolling stock

B - Operations – Transporting – 61 – F

Patent

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Details

B61F 5/22 (2006.01)

Patent

CA 2274118

The present invention pertains to a truck frame for railway rolling stock with a two-axle undercarriage secured by means of a primary suspension to a frame on which, through the intermediate setting (28, 29) of a secondary suspension, a hinged bracket (30) is mounted, transversally oriented relative to the direction of movement, said hinged bracket (30) being attached through oscillation about an axle oriented longitudinally relative to the car to an inclinable cross-bar bearing the car body. This cross-bar is designed as a frame and has two crossbearets (46, 47) mounted prior to or past the hinged bracket (30), while the crossbearers (46, 47) take their bearing against the hinged bracket in direction of movement and are mounted transversally mobile relative to direction of movement. Furthermore, the cross-bar has preferably a central segment (50, 51, 52) connected to the frame (2) of the undercarriage to absorb the longitudinal forces through a guide in the form of a lemniscate, so that the cross-bar (31) can rotate about a substantially vertical axis and hinge in a substantially transversal plane relative to the direction of movement.

La présente invention porte sur un châssis de bogie pour matériel ferroviaire roulant à train de roulement sur deux axes, lequel est fixé par l'intermédiaire d'une suspension primaire à un cadre sur lequel est monté, grâce à la pose intercalaire (28, 29) d'une suspension secondaire, un support articulé (30) orienté transversalement par rapport au sens de la marche, ledit support (30) articulé étant solidarisé par oscillation autour d'un axe orienté dans le sens longitudinal du véhicule avec une traverse inclinable supportant la caisse de wagon. Cette traverse est conçue en forme de cadre et présente deux poutres transversales (46, 47) montées devant ou derrière le support articulé (30), tandis que les poutres transversales (46, 47) prennent appui contre le support articulé dans le sens de la marche et sont montées mobiles transversalement par rapport au sens de la marche. En outre, la traverse présente de préférence un segment central (50, 51, 52) relié au cadre (2) du train de roulement pour absorber les forces longitudinales par l'intermédiaire d'un guide en forme de lemniscate, de telle manière que la traverse (31) puisse tourner autour d'un axe sensiblement vertical et s'articuler dans un plan essentiellement transversal par rapport au sens de la marche.

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