Entry aid with three-point bearing for a rail vehicle or a motor vehicle
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United States of America Patent
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Nov 29, 2016
Grant Date -
Dec 10, 2015
app pub date -
Jan 13, 2014
filing date -
Jan 14, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
An entry aid for a rail vehicle or a motor vehicle have a step, which is movably supported on rolling elements and/or sliding surfaces, and a drive, which is coupled to the step for extending and retracting the step. The rolling elements/sliding surfaces are positioned in exactly three support regions at a distance from one another and arranged in a triangle. Alternatively the rolling elements/sliding surfaces can be arranged on rockers, and bearing points of the rockers can be positioned in exactly three support regions at a distance from one another and arranged in a triangle.
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