| 摘要 |
The invention relates to an apparatus for cleaning especially wooden material, such as stumps and felling waste, which apparatus comprises a grapple frame (1) fixed to a grapple rotator (9), which is connected to a crane arm (8), means to turn and fill the grapple by pulling, grapple arms (3a and 4) on opposite sides of the grapple frame, pivotally connected to frame and provided with a plurality of teeth, as well as a power unit (6) to turn the grapple arms. In the apparatus according to the invention at least some of the second grapple arms (3a) are truncated at their top and have arms (3b) connected thereto by joints (5), and in that the apparatus comprises a power unit (7) to drive the arms (3b) for the purpose of impact cleaning the material. |
