DISPOSITIVO PARA POSICIONAMENTO DE UM PAR DE TIRAS DE FECHO CORREDICO

摘要

A device (10) for positioning a pair of longitudinally advancing elongate slide fastener stringers (14) comprises a pair of positioning jaws (18, 19) movable relatively to one another in a direction substantially perpendicular to the plane of each slide fastener stringer to define therebetween a guide channel (20) for the passage of the slide fastener stringer. At least one of the positioning jaws (19) includes a step (28) for engaging the leading coupling element (16a) of each coupling element row (16) mounted on one longitudonal edge of a tape (15) of each respective slide fastener stringer, thereby stopping the slide fastener stringer. The positioning device having the positioning jaws is capable of accurately positioning the slide fastener stringers even when the slide fastner stringer is laterally undulated or locally swelled during advancing movement thereof.