Hess, F.J.F.J.HessSchreiber, T.T.SchreiberWollboldt, F.F.Wollboldt2022-03-082022-03-081995https://publica.fraunhofer.de/handle/publica/303150The description refers to a device for depalletizing and/or picking up pliable flat sack bundles not collected by auxiliary means. The device comprises a gripper unit and a mobile bottom-support part and a clamping cylinder to grip the parts to be raised. The gripper unit has a first holding-down clamp which is lowered onto the parts to be raised, and a second holding-down clamp which is placed form-fitting on the parts lying below. A contact gap is thus created for the bottom support element arranged in the second holding-down clamp and movable relative to the latter. The bottom support element leaves the area of the second holding-down clamp during the travel movement and supports the parts from below whereby it is in form-fitting contact with the lower parts during the entire travel movement. After the travel movement, a clamping cylinder is placed on the parts to be raised. It grips the parts together with the bottom support element.de608patent1991-4124077