Patent ID: 8113083

Claim:
A device for moving and positioning an object in space, comprising: at least three actuating arms that are each connected to a motor/transmission unit and are pivotable around a transmission axis; a support element provided for arranging at least one gripping mechanism for gripping the object; each actuating arm having, at its free end, a first articulation axis extending parallel to the transmission axis, said first articulation axis having first joint parts which are spaced apart from each other, each belonging to a respective first ball joint; the support element having a second articulation axis associated with each actuating arm, said second articulation axis having first joint parts which are spaced apart from each other, each belonging to a respective second ball joint; the first articulation axis being connected to the second articulation axis by a pair of connecting rods that have second joint parts at their ends and, together with the first joint parts on the first articulation axis and the first joint parts on the second articulation axis, these second joint parts at the ends of the connecting rods form the first and second ball joints, and the connecting rods are connected to each other in order to stabilize the ball joints, wherein the connecting rods, which are composed of an elastic material, are connected to each other by at least one prestressing element composed of a rigid material, wherein the prestressing element has two elongated retaining parts that are kept spaced apart from each other and two collars that are supported in rotary fashion between the retaining parts and are affixed to the connecting rods.