| 摘要 |
A device (100) for capturing, centring, gripping and/or securing an object (140) is disclosed. The device comprises a hub (101) and a ring (102) which are concentric and arranged rotatably relative to each other. On the hub there is at least one first control point (111, 111', 111"), and on the ring there is at least one second control point (112, 112', 112"), which control points are arranged at different axial levels (151,152). At least one tensioning member (121,122,123) is arranged to interact with the at least one first control point and with the at least one second control point during the rotation, such that the at least one tensioning member is stretched across the air gap (130) in the device. The different axial levels for the at least one first control point and the at least one second control point mean that the at least one tensioning member can freely pass over the at least one first control point during the rotation and can be stretched across the air gap towards the object. Substantially any desired angle of rotation between the hub and the ring can be obtained in this way. |
