Leg cultivator perfected type formed in one piece and rotatable through a fixed shaft, with return springs vertically acting, essentially characterized in that said springs are constituted by a plurality of leaf springs fixed at one end to the elbow the leg, and supported by their free grower chassis ends, so that the rotation of the leg about its axis occur, these springs exert a vertical action which tends to recover the original position of the leg; and wherein said multiple leaf spring are grouped by easily controllable, such as a threaded pin and nut means, allowing the addition and subtraction of leaf springs in order to a graduation of the vertical return action of the leg according to the terrain features.
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