| 摘要 |
The rotary shaft (18) joins the two coupling parts (12,14) so that they can be rotated in relation to one another. A hydraulic or pneumatic cylinder is arranged between the jib coupling part and the work tool coupling part. It is joined by means of a first ball joint (28,30) to the jib coupling part so that it is rotatable around an axis which is not parallel with the rotary axis and by means of a second ball joint (46,48) to the work tool coupling part so that it is rotatable around an axis (50,52) which is not parallel with the rotary axis. |
