Method of continuously reinforcing slide fastener tape ends having separable bottom stop assembly
AssigneeYoshida Kogyo K.K.
InventorEiichi Yoshimura
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Abstract
As a pair of fastener tapes is supplied through a molding machine and then through a fiber hardening agent applying and impregnating unit, a predetermined length of coupling element rows are molded on and along confronting beaded edges of the fastener tapes, and simultaneously a separable bottom stop assembly composed of a pin member and a box member and top stops are molded about one ends and the other ends of the coupling element rows, whereupon a fiber hardening agent is applied over and impregnated in the tape surfaces of the prospective bottom end portions by the fiber hardening agent applying and impregnating unit.
Claims2
A method of continuously reinforcing opposed slide fastener tape ends having a separable bottom stop assembly in manufacturing of a separable slide fastener chain by molding coupling element rows and a separable bottom stop assembly on confronting beaded edges of the slide fastener tapes being continuously supplied, comprising the steps of:
- drawing a continuous train of connected slide fastener tapes in a processing direction;
- injection molding coupling element rows and a separable bottom stop assembly simultaneously at a molding station;
- and
- downstream of the molding station, impregnating a heat activated fiber hardening agent into the fastener tapes in a narrow band across the tape which includes the bottom stop assembly.
Dependencies are inferred from the claim text.