A support foot comprising: - a first body , - a second body slidingly coupled to the first body along a predetermined sliding direction (A), - an actuator device adapted to actuate the second body to slide with respect to the first body along said sliding direction (A) between a retracted position and an advanced position, - a third body hinged to the first body according to a hinging axis (B) orthogonal to the sliding direction (A) of the second body , and - an actuation apparatus adapted to actuate the first body to rotate with respect to the third body around said hinging axis (B) between an active configuration and an inactive configuration, wherein the first body has a tubular shape and is provided with a first axial end and an opposite second axial end , wherein the second body has an elongated shape provided in turn with a first axial end and an opposite second axial end , wherein the second body is slidably fitted into the first body so that the first axial end of the second body protrudes from the first axial end of the first body at least when the second body is in advanced position, wherein said actuation apparatus comprises a mechanism adapted to transform a sliding of the second body from the advanced position towards the retracted position into a corresponding rotation of the first body from the active configuration to the inactive configuration, characterized in that said mechanism comprises at least a thrust portion of the second body which, at least in a terminal section of the displacement of the second body from the advanced position to the retracted position, is adapted to stay in contact with a corresponding abutment portion of the third body , in a point which is misaligned with respect to the hinging axis (B) along the sliding direction (A), wherein that the thrust portion of the second body is defined by the second axial end of the second body itself. - a first body , - a second body slidingly coupled to the first body along a predetermined sliding direction (A), - an actuator device adapted to actuate the second body to slide with respect to the first body along said sliding direction (A) between a retracted position and an advanced position, - a third body hinged to the first body according to a hinging axis (B) orthogonal to the sliding direction (A) of the second body , and - an actuation apparatus adapted to actuate the first body to rotate with respect to the third body around said hinging axis (B) between an active configuration and an inactive configuration, wherein the first body has a tubular shape and is provided with a first axial end and an opposite second axial end , wherein the second body has an elongated shape provided in turn with a first axial end and an opposite second axial end , wherein the second body is slidably fitted into the first body so that the first axial end of the second body protrudes from the first axial end of the first body at least when the second body is in advanced position, wherein said actuation apparatus comprises a mechanism adapted to transform a sliding of the second body from the advanced position towards the retracted position into a corresponding rotation of the first body from the active configuration to the inactive configuration, characterized in that said mechanism comprises at least a thrust portion of the second body which, at least in a terminal section of the displacement of the second body from the advanced position to the retracted position, is adapted to stay in contact with a corresponding abutment portion of the third body , in a point which is misaligned with respect to the hinging axis (B) along the sliding direction (A), wherein that the thrust portion of the second body is defined by the second axial end of the second body itself. <EOS>