| 摘要 |
An arm arrangement of a lifting device, said arrangement comprising two arm elements (4, 5) connected to each other, a first (4) one of which is connected to a support element (6) and the second (5) one is provided with a function member (7) and pivoted, which arrangement is characterized in that it comprises means (10, 11, 12; 17, 18, 19) for moving the point of interconnection of the arm elements along the second arm element (5) between at least two positions. The arm arrangement allows for the lifting device to be used for several purposes, as height digging and depth digging, respectively. |
