Slide Fastener
AssigneeYKK Corporation
InventorsKenji Dono, Shunji Akashi, Hiroshi Ishisaka, Naoyuki Himi
Life of this patent
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Abstract
A slide fastener in which a fastener element has first and second leg portions continuously disposed at both ends of the coupling head is folded in half at its center, and the first leg portion is attached to a coupling element attaching portion of a fastener tape by a sewing thread. A vulnerable portion which is cut out into a V is formed on the bent end face of the coupling head.
Claims4
-5. (canceled)
The slide fastener according to claim 7, wherein the plurality of coupling elements re coil-like or zigzag-like continuous coupling elements in which the ends of the first and second leg portions are connected via each reversal connecting portion.
A slide fastener in which coupling elements are attached to plural positions along right and left coupling element attaching portions which are side edge portions of a pair of fastener tapes opposing each other, and opposing coupling element rows are capable of being coupled and separated,
- wherein each of the coupling elements includes a coupling head, and a first leg portion and a second leg portion which are continuously disposed by sandwiching the coupling element attaching portions,
- a sewing portion at which the first leg portion and the second leg portion are sewn to one of the fastener tapes is provided,
- a vulnerable portion whose breaking resistance is weakened is provided on a part of the coupling head of an outer surface of the first leg portion or the second leg portion, and
- the vulnerable portion includes a cut-out portion which is cut out of an outer face of the coupling head.
Dependencies are inferred from the claim text.