Multi-axis caster angle control system of an extendable wheel assembly
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United States of America Patent
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Jul 12, 2016
Grant Date -
May 7, 2015
app pub date -
Jun 4, 2012
filing date -
Jun 4, 2012
priority date (Note) -
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Abstract
A wheel assembly for vehicle includes a wheel, at least one lower suspension link and one upper part, the wheel being arranged to rotate at 360°, to steer the vehicle around a pivot line, a projection of the pivot line onto a vertical projection plane including a vertical axis passing through a contact point between the wheel and ground defining a caster angle (α) with the vertical axis. The wheel assembly includes a at least one screw arranged to adjust the caster angle (α) such that the position of the upper part is moveable relative to the vehicle along a first degree of freedom and a second degree of freedom.
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