Automatic lock slider for slide fastener
AssigneeYoshida Kogyo K. K.
InventorsTakeo Fukuroi, Ichiro Terasaki
Life of this patent
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Abstract
An automatic lock slider for a slide fastener includes a locking prong spring-biased to protrude into a Y-shaped guide channel in a slider body. The locking prong is urged downwardly to engage a coupling head of a coupling element in an intermeshing region where the mating pair of coupling elements are brought into and out of intermeshing engagement. The locking prong is urged against the coupling head to effect locking of the slider.
Claims11
An automatic lock slider for a slide fastener having a pair of rows of coupling elements, comprising:
- (a) a slider body including upper and lower wings spaced from each other and joined together at their front ends by a neck so as to define therebetween a Y-shaped guide channel for the passage of the coupling elements, said Y-shaped guide channel including a branched point in which branched point a mating pair of coupling elements are brought into and out of intermeshing engagement as they pass through said guide channel;
- (b) a locking member of resilient material supported on said slider body and including a locking prong movable through an aperture in said upper wing into and out of said guide channel;
- (c) a pull tab pivotally mounted on said slider body and operatively connected with said locking member for moving said locking prong upwardly against the resiliency of said locking member;
- and
- (d) said locking prong having a lower end normally disposed in said guide channel immediately upstream of said branched point and urged downwardly, under the resiliency of said locking member, for abutment on a coupling head of one of two mating coupling elements which are about to intermeshingly engage with each other.
An automatic lock slider for a slide fastener having a pair of coupling elements rows comprising:
- (a) a slider body including upper and lower wings spaced from each other and joined together at their front ends by a neck, thereby defining a Y-shaped guide channel therebetween;
- (b) a locking member supported on said slider body and including a locking prong, movable through an aperture in said upper wing adjacent said neck and into and out of the guide channel for abutment on a coupling head of one of two mating coupling elements which are about to intermeshingly engage with each other;
- (c) a pull tab pivotally movably mounted on said slider body and having a cam shaft sandwiched between said locking member and said slider body and biased downwardly by said locking member to rotate so that the pull tab rests on said slide body;
- and
- (d) said pull tab including bifurcated support legs having their end portions connected respectively to opposite ends of said cam shaft, said cam shaft being disposed at a level downwardly offset relative to upper surfaces of said support legs, said end portions of said support legs each having a guide recess disposed at its inside corner.
Dependencies are inferred from the claim text.