| 摘要 |
<p>The device has two pivoted gripper arms (10a,b) which are arranged on a gripper head (40) of an emptying unit, through front and rear links (26a,b,32a,b). The gripper arms are adjustable via at least one operating device (50) which acts upon the links. At least one support component (28a,b) is fitted between the gripper arms and the four link guide forms a parallelogram (20a,b) so that in each pivot position, an acute angle ( alpha ) is enclosed between the links and the corresponding gripper arms. The support component is carried by the projecting free end of the front links (26a,26b) which are pivoted to the gripper head at a common link point (23) and form a shear link (30). The rear links (32a,32b) on the gripper head also have a common link point (24). The gripper arms are straight and at their free end may bent inwards.</p> |
