Tiller assembly for treating the surface soil

A tiller assembly for treating a surface of a soil, thee tiller assembly comprising:

• a support structure;
• a tiller rotatably mounted on said support structure, extending along a tilling axis, and configured to rotate about said tilling axis so as to treat said soil;
• said tiller comprising a first tilling portion extending along a first tilling axis, and a second tilling portion extending along a second tilling axis;
• transmission means at least partly interposed between said first and second tilling portion, mechanically connected to said first and second tilling portion, and configured to drive by rotation said first and second tilling portion around respective tilling axis;
• wherein transmission means comprises:
• a gear reducer configured to receive a mechanical power from a motor and to transmit the mechanical power to said first and second tilling portion;
• and
• first connection means connected to said first portion and second connection means connected to said second portion, spaced apart from and opposite each other with respect to said gear reducer,
• said first and second connection means being configured to mechanically connect respectively said first and second portion to said gear reducer in such a way as to achieve a transmission of the rotation from said gear reducer to said first and second tilling portion that rotate around the respective first and second tilling axis;
• said first and second connection means being movable, between an aligned configuration in which said first and second tilling portion are oriented substantially parallel to said tilling axis and an inclined configuration in which said first and second tilling portion are inclined according to an angle of inclination (ϕ) to allow said first and second tilling portion to adapt to a conformation of the surface soil to be treated;
• wherein said gear reducer is configured to transmit a mechanical power along a transmission axis transverse to said tilling axis, and comprises:
• a driving shaft arranged along said transmission shaft and configured to rotate about said transmission axis and comprising a drive sprocket;
• a driven shaft arranged orthogonally with respect to said transmission axis and comprising a driven gear;
• and
• said drive sprocket and said driven gear defining an angular coupling between them.