| 摘要 |
In the case of the known upper feed dog according to the main application, a guide system with a four-joint linkage connected to the upper feed dog is provided to reduce the size of the moving components of the upper feed dog in its set-down phase. The sliding drive also engages in the pivoting arm of the linkage connected to the upper feed dog. To correct the position of the axis of the elliptical lifting-sliding movement of the upper feed dog (6), the connecting guide (58) between the guide system (L2) for the sliding drive and the guide system (L1) for the lifting drive is articulated directly to the connecting rod (28) of the linkage (19, 18, 28, 29, 32) between the two linkage points of the connecting rod (28). |
