Thread traversing device of a machine for producing cross-wound bobbins

Thread traversing device of a cross-wound bobbin producing machine, comprising a belt drive having a first belt run with a first thread follower moving in a given traversing direction at a given speed and a second belt run with a second thread follower moving in a direction opposite to said given traversing direction at said given speed, said thread followers having upper ends and being spaced apart by at most twice a given traversing width, and a stationary thread guide for transferring a running thread from one of said thread followers to the other, said thread guide having a concave thread guiding contour touched by the running thread with reversing points defining a traversing path therebetween, said thread guide including a projection disposed at each respective reversing point pointing toward the other reversing point and forming a wedge with said thread guiding contour defining thread stops, and said thread guiding contour lifting the running thread at said reversing points over the upper end of one of said thread followers so that the thread is taken along by the other of said thread followers and rides on said thread guiding contour.