| 摘要 |
The invention relates to a positioning device with a supporting structure, with a work carrier (22) and with length-adjustable struts (70, 72; 186), which are respectively connected on one side to the supporting structure and on the other side to the work carrier (22), wherein the struts (70, 72; 186) are movably mounted at the points of connection to the supporting structure and the work carrier (22), wherein at least some of the struts (70, 72; 186) are adjustable in length and wherein at least some of the struts (70, 72; 186) have a drive for adjusting their length. At least six of the struts (70, 72; 186) are arranged in pairs. In the case of one pair of struts (58, 60, 62; 126), the struts (70, 72; 186) are arranged in parallel and each pair of struts (58, 60, 62; 126) has a pivot bearing (24, 26, 30, 32; 78, 80; 84) at a first end of the longitudinal extent of the struts (70, 72; 186). Finally, each pair of struts (58, 60, 62; 126) also has a second bearing at a second end of the longitudinal extent of each strut (70, 72). |
