Hinge devices for seat-backs

摘要: The invention provides a seat-back hinge for vehicle seat comprising an inwardly toothed sector integral with the sitting portion flange (1), (3), bolt (5) adapted to coact directly these two sectors and rotary cam (6) connected control hand-lever (22) bolt. This this are mounted transversely floating comprises semi-cylindrical land (11) complementary lands comprised by flanges.