Stabilising device, in particular for a ladder, on the steps of a stairway

摘要

a) Device for stabilising a ladder on the steps of a stairway, b) characterised in that it comprises a plate (1), two arms (3 and 4) mounted pivotably by one of their ends on the lower face of this plate, a height-adjustable foot (5, 6) fixed to the free end of each of the arms and two slides (12, 13) arranged at a short distance from the lower face of the plate, each to form with the plate a guide for one of the arms. <IMAGE>