Immobilization of two half - sub-frames, foldable unfolded in position by a spacer rise under elastic tension.

摘要

The legs (1,2) pivot on two axles (5,6) and rest on two angular fixed stops (3,4) when they are open which hold the legs in an inclined position. The legs each have an inclined blind hole (7,8), at their median part, in which the ends of a cross-bar (9) engage. The cross-bar is a slat whose length is greater than the distance between the bases of the holes. It is curved upwards, in a convex shape, to produce a constant pressure on the open legs. USE - Cross-bar holding legs of folding bench or table in open position.