Patent ID: 6681455
Filing Date: 2004-01-27
Classification: A44B,Y10T

Abstract:
An airtight waterproof slide fastener having a pair of fastener stringers in which a side edge of an airtight waterproof tape wraps and holds a plurality of coupling elements from flange sides, makes their coupling heads project outward, and is folded such that an engagement tooth holding portion having a substantially &OHgr;-shaped cross section is formed on the side edge of the tape and a peripheral face of this engagement tooth holding portion is nipped with a substantially U-shaped clamp element constituted of a nipping portion having a pair of sheet-like nipping pieces and a connecting portion for connecting respective ends of one of the nipping pieces and the other one of the nipping pieces, whereina stress-releasing portion is formed on the clamp element so as to release tensile stress generated in a tape portion existing between side faces of adjacent nipping pieces when said airtight waterproof tape is folded between adjacent clamp elements.