Patent ID: 7870649

Claim:
A waterproof slide fastener, wherein an entire surface of a fastener tape is covered with elastomer; through holes are made in the fastener tape; wherein the fastener elements consists of a coupling head having a coupling concave portion provided at a front end of the fastener element, a constricted neck portion, and a wide engaging projection projecting at the neck portion, a wide leg portion, and a tongue piece projecting from a rear end of the leg portion; wherein the fastener elements are integrally molded on front and rear surfaces of the fastener tape using thermoplastic resin; a tape edge portion is exposed on a foreside of the engaging projection; and when the fastener elements are coupling, the tape edge portions are pressed against each other; wherein the leg portions are attached to the through holes, and covering the through holes; and the fastener element further comprising reinforcing portions, extending in the longitudinal direction of the fastener tape, having a wider width than the width of the longitudinal direction of the fastener tape of the engaging projection, integrally formed therewith, wherein the reinforcing portions are formed thicker than the engaging projections and thinner than the leg portions in a direction substantially parallel with an axial direction the through holes extend through the fastener tape.