Railway rolling stock – Trucks – Bogie
Patent
1990-03-19
1991-12-17
Oberleitner, Robert J.
Railway rolling stock
Trucks
Bogie
1051984, 267134, 267196, B61F 550
Patent
active
050726730
ABSTRACT:
The bogie has two side-frames. Each side-frame has an opening in which a respective end of a bolster bar rests upon the side-frame by way of suspension springs. Two wedges, themselves supported by springs and having an oblique face which is thereby pressed against an oblique face of the bolster, consequently assume a friction bearing against a frictional face of the side-frame so as to damp the suspension oscillations. The oblique faces are not only oblique with respect to the vertical, but also with respect to the longitudinal midline of the bogie. The horizontal force to which the wedge is subjected consequently comprises a transverse component which is used to clamp the side-frame between the wedge and a reference face of the bolster. The transverse component thus stabilizes the side-frames in a position orthogonal to the bolster, thereby counteracting forward and backward movements of one side-frame with respect to the other, while allowing for independent movements of the side-frames in their respective vertical plane to absorb rail bed irregularities.
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Morano S. Joseph
Oberleitner Robert J.
Usines et Acieries de Sambre et Meuse
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