ES224152U - Sliding clasp fastener - Google Patents

Abstract

Zip fastener, characterized in that it includes a pair of support straps that each carry a series of interlocking and evenly spaced coupling elements each on its inner longitudinal cordoned edge, each coupling element including a body provided coupling head, a pair of upper and lower arms extending rearwardly from said coupling head and being provided with facing inner wall parts, opposite outer faces, being. said upper and lower arms are also provided with opposite flat side faces that are substantially at right angles to said outer face and perpendicular to the plane of the support straps, said inner wall parts being configured as arcuate concave surface which parts jointly provide a continuous inner peripheral surface of substantially circular profile that is interrupted by a slot defined by the opposite edges of said upper and lower arms, said peripheral surface peripherally holding the cordoned edge, said upper and lower arms having a plurality of teeth formed in a single piece therewith and protruding from the inner wall parts facing each other, the respective teeth being arranged in said upper and lower arms in register with each other, the teeth of each arm being spaced in the longitudinal direction of the cordoned edge of the tape and located substantially in the center of curvature of the inner wall part where the arm has its least thickness, measured in the direction perpendicular to the plane of the support tape, the opposite teeth being arranged on each part of the wall interior along with its opposite peripheral edges such that their respective outer lateral surfaces are substantially flush with the outer lateral faces of the arm, each tooth being arranged in firm clamping cooperation with the cordoned edge of the tape to fix the coupling element in position against a tilting movement with respect to said edge, (Machine-translation by Google Translate, not legally binding)