| 摘要 |
A variable attitude rake of the rotary type (1), comprising a supporting structure (2) that is translatable over ground and at least four rotors (4, 5, 6, 7) which are supported by the supporting structure (2) and rotatable about a corresponding rotation axis (4a, 5a, 6a, 7a), which is arranged, with the corresponding rotor (4, 5, 6, 7) in the working position, substantially at right angles to the ground. Each one of the rotors (4, 5, 6, 7) is provided with arms (8) which are arranged radially with respect to the rotation axis (4a, 5 a, 6a, 7a) of the corresponding rotor (4, 5, 6, 7) and each arm (8) is provided with gathering elements (9). The rotors (4, 5, 6, 7) comprise at least two inner rotors (4, 5), and at least two outer rotors (6, 7). The outer rotors (6, 7) are movable with respect to the inner rotors (4, 5) from at least one first configuration, to at least one second configuration. |
