Metallic One-Side Teeth and Two-Way Slide Fastener

Abstract

Metallic one-side teeth that attain preventing of colliding contact at interlock, enhancing of rigidity against moment by horizontal pull force and construction of simple structure; and a two-way slide fastener utilizing the metallic one-side teeth. An upper inclined plane (8) declining toward the side of interlock dent portion (5) is provided between the opening edge (5a) of the interlock dent portion (5) and the apical edge (7) of an interlock head portion (3). By virtue of the upper inclined plane (8), at insertion in the interlock dent portion (5), there can be prevented any insertion of an interlock convex portion (4) as an interlock counterpart-side while making colliding contact with the interlock head portion (3). Accordingly, the sliding movement of slider for opening/closing of a two-way slide fastener can be smoothed.

Dependencies are inferred from the claim text.