(57) The invention relates to a running gear assembly (1) for a rail vehicle comprising
a plurality of two-wheeled running gears (2,3), at least one of which is radially
steerable using steering levers (6) mutually connecting the running gears (2,3), wherein
at least the one steerable running gear (2,3) comprises a ring assembly system formed
by at least a first and a second ring, the first of which is connected to a sub-frame
forming part of the relevant running gear (2,3) and at least the second ring is connected
to one of the steering levers connecting the running gear (2,3) to other running gears
(2,3) and that the running gear (2,3) comprises coupling means for mutually coupling
the rings and steering levers such that the wheels forming part of the running gear
(2,3) are directed substantially radially.
There is a completely free choice of coupling of the four elements, first, second
lever, sub-frame and wheel pair/wheel set, to the three concentric moving rings or
groups of rings, the sole proviso being that the forced radial adjustment of the wheel
pair/wheel set is achieved.
As a result of these steps the use of hinges is eliminated as far as possible so that
the danger of play occurring is as small as possible.
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