Fastener stringer provided with metal element row having plating film, fastener chain, and slide fastener
AssigneeYKK Corporation
InventorsNorio Kikukawa, Koji Hashiba
Life of this patent
Estimating the term…
Abstract
Provided is a fastener stringer including a row of metal elements having a plating film formed with improved thickness uniformity without waste, even if the elements are not electrically connected to each other in advance. For each of ten adjacent metal elements of the fastener stinger, 0.6≤D1/A1≤2.0 is satisfied in which A1 represents an average value of thickness of the plating film for the ten metal elements at element center on either one main surface side of the fastener tape, and D1 represents thickness of the plating film for each of the metal elements at the element center on the one main surface side of the fastener tape.
Claims20
A fastener stringer comprising a row of metal elements having a plating film, the metal elements being fixed at predetermined intervals on one side edge of a fastener tape in a longitudinal direction,
- wherein a portion of the fastener tape in contact with each of the metal elements has insulation properties;
- wherein each of the metal elements comprises:
- a pair of leg portions;
- and a head portion connecting the pair of leg portions, the head portion comprising a convex portion and a concave portion for engagement;
- the plating film is not formed on a portion which is hidden by contact with the fastener tape, among the surface of each of the metal elements;
- the row of the metal elements is composed of 2n or 2n+1 metal elements in which n is an integer of 5 or more;
- and
- each of ten adjacent metal elements from the n−4th to the n+5th in the longitudinal direction from either one end of the row of metal elements satisfies a relationship:
- 0.6≤D1/A1≤2.0, in which A1 represents an average value of thickness of the plating film for the ten metal elements at element center on either one main surface side of the fastener tape, and D1 represents thickness of the plating film for each of the ten metal elements at the element center on the one main surface side of the fastener tape.
A fastener stringer comprising a row of metal elements having a plating film, the metal elements being fixed at predetermined intervals on one side edge of a fastener tape in a longitudinal direction,
- wherein a portion of the fastener tape in contact with each of the metal elements has insulation properties;
- each of the metal elements comprises:
- a pair of leg portions;
- and a head portion connecting the pair of legs, the head portion comprising a convex portion and a concave portion for engagement;
- the plating film is not formed on a portion which is hidden by contact with the fastener tape, among the surface of each of the metal elements;
- the row of the metal elements is composed of 2n or 2n+1 metal elements in which n is an integer of 5 or more;
- and
- for each of ten adjacent metal elements from the n−4th to the n+5th in the longitudinal direction from either one end of the row of metal elements, the plating film is formed such that a base material is not exposed at the top of the convex portion and at the deepest point of the concave portion of the head portion.
Dependencies are inferred from the claim text.