B - Operations – Transporting – 61 – F
Patent
B - Operations, Transporting
61
F
105/61
B61F 5/00 (2006.01) B61B 13/08 (2006.01) B61C 11/00 (2006.01) B61F 3/08 (2006.01) B61F 5/40 (2006.01) B61F 5/44 (2006.01)
Patent
CA 1167701
ABSTRACT A steerable truck includes a pair of axles supported in steering yokes that are pivotally connected to one another for equal and opposite steering motion. The yokes support a pair of longitudinal side frames that are connected to the yokes by lateral links. The links act to centre the yokes and allow steering movement relative to the truck. The links also permit a torsionally flexible truck to accommodate uneveness in the track. One of the yokes is connected to the vehicle body by a parallelogram draft linkage to prevent lateral sway of the vehicle inducing steering motion of the truck. Dynamic response of the truck may be adjusted by connecting a link between the bolster and the draft linkage to feed back a selected portion of the body sway into the yokes.
413458
Mccarthy Tetrault Llp
Urban Transportation Development Corporation Ltd.
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