| 摘要 |
The invention relates to a device for swiveling an object around a stationary axis (16) which lies outside the space occupied by the device. The inventive device is characterized by unusually great rigidity. A supporting coupler (5) and a guiding coupler (10) are guided parallel to the frame (1) with the aid of cross-sliding elements. The supporting coupler (5) and the guiding coupler (10) are connected to a crank (4) by means of one respective revolute joint, the crank (4) guiding the supporting coupler (5) and the guiding coupler (10) along concentric, non-identical circular paths. The supporting coupler (5) and the guiding coupler (10) are provided with a second revolute joint located at the same distance from the first revolute joint, i.e. a revolute joint (5b) for the supporting coupler at the output end and a revolute joint (10b) for the guiding coupler at the output end, via which the two couplers (5, 10) are jointly connected to an output member (9). The tool is fixed to the output member (9), which follows a circular swiveling path about a stationary axis (16). |
