Fastener stringer
AssigneeYKK Corporation
InventorMasayoshi Kojima
Life of this patent
Estimating the term…
Abstract
These fastener elements have: an element main body portion having a coupling head portion; and first and second projections that project in a tape surface/rear-surface direction from the element main body portion. The first and second projections have a top surface, peripheral side surfaces standing upright from the element main body portion, and at least one sloped surface between the top surface and the peripheral side surfaces that has a different angle of inclination from the top surface and the peripheral side surfaces. As a result, the fastener elements appear long and narrow in the element length direction and have an external appearance close to that of a metal element. Furthermore, a stop claw portion is less likely to catch on the fastener elements when starting the sliding operation of a slider.
Claims9
A fastener stringer including a fastener tape and a plurality of fastener elements made of synthetic resin attached to a tape side edge portion of the fastener tape, in which
- each fastener element includes an element main body portion fixed so as to extend across a first tape surface and a second tape surface of the fastener tape and first and second projections projected in a tape front and back direction from the element main body portion, and in which
- the element main body portion has a body portion fixed to the fastener tape, a neck portion in a constricted shape extending in a tape outward direction from the body portion and a coupling head portion in an elliptical shape extending from the neck portion, wherein
- an outer surface of the first projection and an outer surface of the second projection respectively have at least one top surface parallel to the first tape surface and the second tape surface of the fastener tape, a peripheral side surface rising from the element main body portion and at least one sloped surface which is between the top surface and the peripheral side surface and has a different inclination angle with respect to the top surface and the peripheral side surface.
Dependencies are inferred from the claim text.