Apparatus for manufacturing slide fasteners
AssigneeYoshida Kogyo K.K.
InventorMinoru Ueda
Life of this patent
Estimating the term…
Abstract
A pair of continuous slide fastener stringers is longitudinally fed by longitudinally reciprocable grip means and driving roller means that is selectively actuatable. As the slide fastener stringers are advanced, one of the stringers is threaded through a slider held fixedly in its path of travel. The slide fastener stringers are cut off transversely across element-free gaps, and then the severed stringer pieces are moved forwardly until their leading end portions are positioned in a molding device, which molds a separable end stop on the leading end portions. The driving roller means is continuously driven to advance the slide fastener stringers until element-free gaps arrive at the cutter means, whereupon the driving roller means is de-energized.
Claims6
An apparatus for manufacturing slide fastener, comprising:
- (a) means for severing a pair of continuous slide fastener stringers transversely across one of longitudinally spaced, transversely aligned pairs of element-free portions;
- (b) means for molding a separable end stop including a pin and a receptive box respectively on the leading ends of the slide fastener stringers;
- (c) grip means reciprocable substantially between said severing and molding means for advancing the slide fastener stringers along a longitudinal path;
- (d) roller means disposed in said longitudinal path between said severing and molding means for feeding the slide fastener stringers along said path;
- and
- (e) means retractably disposed between said roller and molding means for positioning a slider in said longitudinal path before arrival thereat of one of the slide fastener stringers, for enabling said one stringer to be threaded through a slider during feeding of said one stringer by said roller means.
Dependencies are inferred from the claim text.