Variable support roll (1, 1') for at least partial arrangement within an opening (13, 13') at least one floor pan (15, 15'),Comprehensive at least one storage element that can be connected to the floor plate (15, 15') indirectly (3, 3'),at least one fork connected to the bearing element (3, 3') to at least one pivoting axle (5, 5') relative to the bearing element (3, 3') rotatable fork (7, 7') and at least one wheel rotatable in the fork (7, 7') around a wheel axis (R, R');where the supporting roller (1, 1') also has at least one rotating safety around the pivoting axle (5, 5') with the fork (7, 7') and/or the wheel (9, 9') in active conjunction (11, 11') marked by at least one outer edge of the apron (11,11'), 11') ordered distraction device (19, 19').
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