公开(公告)号：US20190316368A1

公开(公告)日：2019-10-17

申请号：US16317297

申请日：2017-07-12

申请人： SCHWING GMBH

发明人： Murat AKKOC ,  Mykola OLEKSYUK ,  Bernd SEGSCHNEIDER

IPC分类号： E04G21/04 ,  B25J9/10

摘要： A large manipulator includes a folding-out articulated mast with a turntable rotatable about a vertical axis and with a plurality of mast segments. The mast segments are each pivotable on articulated joints about articulated axes relative to an adjacent mast segment or the turntable. The at least one mast is formed by a hollow structure of wall elements connected with each other. At least one of the wall elements includes a recess region with a recess. A material thickness of the at least one wall in the recess region is less than a material thickness of the at least one wall element outside the recess region.