Railway bogie with frame having selective deformability
AssigneeSambre et Meuse (Societe Anonyme)
InventorJean M. Lienard
Life of this patent
Estimating the term…
Abstract
Sole-bars (1) bear on axles by elastic suspensions (12) with frictional damping. The bolster (18) bears by elastic blocks (32) on the lower side of a window (24) through each sole-bar. Each elastic block (32) bears on a face (31) of the sole-bar which has, in relation to the longitudinal direction (L) of the bolster (18), an inclination (A) such that the compressive force (F) of the elastic block has a horizontal component (F.sub.HT) which pushes the sole-bar so as to bear by its reference face (26) against a parallel reference face (28) belonging to the bolster. Thus, the sole-bars (1) are constantly returned to a favored configuration of perpendicularity in relation to the bolster. Use for effectively combatting parasitic deformations and sideways movements of deformable-frame bogies.
Claims11
Railway bogie comprising two separated sole-bars (1), at least two axles (3) and a bolster (18), the axles (3) and the bolster (18) extending between the two sole-bars (1), the bolster (18) being joined to each of the sole-bars (1) by a wedgeless articulated linkage so as to transmit to the sole-bars (1) a portion of the weight of the vehicle supported by the bolster (18) and to permit the sole-bars (1) to have clearance movements in a plane perpendicular to the longitudinal direction of the bolster, each sole-bar (1) having lateral reference faces (26) and bearing faces (31), the bolster (18) having reference faces (28) and bearing faces (29) at each of its ends, said lateral reference and bearing face (26, 31) of each sole-bar (1) being parallel to a reference or bearing face (28 or 31) of the bolster (18), the bearing (29, 31) and reference (26, 28) faces being disposed transverse to the longitudinal direction (L) of the bolster, and certain of said faces being so inclined that the bolster (18) transmits to the sole-bars (1), proportionally with a force exerted by said portion of the weight of the vehicle, a generally inwardly and downwardly oriented force (F) having a horizontal component (F.sub.HT) that urges lateral reference faces (26) of the sole-bars (1) toward reference faces (28) of the bolster (18).
Dependencies are inferred from the claim text.