It is envisaged to affix an arm (1) of the tillage tool to a frame (2) by means of two V-shaped plates (3) connected to one another to retain the frame (2), in a turned position with respect to the V-shaped plates (3), in their interior, by means of the interposition of rubber bodies (4) compressed and located in the areas comprised between the interior of the V-shaped plates (3) and the exterior of the frame (2). The novelty of the invention is centered in characteristic axial retention means of the rubber bodies (4) to maintain the same in a static position at least in both directions of its longitudinal direction.
