FIELD: transport.
SUBSTANCE: step or platform base 17 comprises rear bolster 22 and front bolster 24 to form going plane E3. Two outer crossbars 20.1, 20.2 are arranged, crossbar 20.1 being located at the right and crossbar 20.1 being located at the left, mainly, perpendicular to said bolsters 22, 24. Both bolsters 22, 24 are made from deep drawing sheets welded, or riveted, or screwed or glued, or clinched to crossbars 20.1, 20.2 to make a bearing frame. Height of bolsters 22, 24 at their ends is smaller than that of bolsters 22, 24 at their center so that they feature convex shape. Moving device comprises steps or platforms equipped with above described base.
EFFECT: higher reliability and smoothness of running of steps and apltform and moving device.
23 cl
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