PURPOSE: To enlarge the take-up width to a bobbin by dividing a cam roll, which is coupled by a coupling fitted in an intermediate bracket partially inherent in the side end portion of the cam roll to set an arbitrary number and length of traverse guide.

CONSTITUTION: Cam rolles 5, 10 have shafts 7, 11 projected thereon and coupled to each other by a coupling 27. The coupling 27 comprises a boss with outer teeth and a ring with teeth engaged with the outer teeth, which are respectively secured to shafts 7, 11. The cam rolls 5, 10 are assembled, with voids 9, 14 into which a part of the bracket 4 advances, and the distance l of traverse guides for the cam rolls 5, 10 can be shortened. Thus, the cam rools are supported by a bracket where a coupling is inherent, so that the support distance L of the cam roll can be shortened, the number and length S of the traverse guides can be set at an arbitrary number, l between the traverse guides can be shortened, and the take-up width to a bobbin can be increased.