Back to results
US 8,701,253 B2Granted
Slide fastener
AssigneeYKK Corporation
InventorsKenji Dono, Shunji Akashi, Hiroshi Ishisaka, Naoyuki Himi
Life of this patent
Estimating the term…
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.
Claims3
A slide fastener comprising a pair of fastener tapes and a plurality of coupling elements which are attached to plural positions along opposing side edge portions of the fastener tapes,
- wherein each of the coupling elements includes:
- a coupling head, which engages with opposing coupling elements,
- a first leg portion and a second leg portion which are continuously disposed on both end portions of the coupling head and extend towards respective adjacent coupling heads,
- the first leg portion is disposed away from a surface of the fastener tape, and the second leg portion is disposed in contact with the surface of the fastener tape,
- the first leg portion and the second leg portion sewn to one of the fastener tapes via a sewn portion,
- the sewn portion is disposed on an outer surface of the first leg portion between the coupling head and an end of the first leg portion,
- the first leg portion includes a vulnerable portion whose breaking resistance is weakened on the outer surface between the sewn portion and the coupling head, and
- the vulnerable portion includes a cut-out portion which is cut out of the outer surface of the first leg portion.
5 more elements
Dependencies are inferred from the claim text.