초록 ▼

Disclosed is a closure having an aperture at one end and projections on its edges that is improved by the use of slits, either extending from the aperture or extending from the abutment edges of the projections, which provide a locking action that prevents release of the closure when under elongatio

Disclosed is a closure having an aperture at one end and projections on its edges that is improved by the use of slits, either extending from the aperture or extending from the abutment edges of the projections, which provide a locking action that prevents release of the closure when under elongation load through curling and deformation of the strip.

대표청구항 ▼

A closure comprising an elongated, pliable, resilient strip, having a first end, and leader end, two longitudinal edges between the first end and the leader end, and a longitudinal axis extending between the longitudinal edges; said strip having in a first zone on each longitudinal edge at least one

A closure comprising an elongated, pliable, resilient strip, having a first end, and leader end, two longitudinal edges between the first end and the leader end, and a longitudinal axis extending between the longitudinal edges; said strip having in a first zone on each longitudinal edge at least one projection defined by an edge portion oblique to the longitudinal axis and an abutment edge portion intersecting the oblique edge portion, said oblique and abutment edge portions on each longitudinal edge being respectively transversely aligned opposite the edge portions of the opposite longitudinal edge relative to the longitudinal axis so as to cooperatively form at least one arrow-head shape with the oblique edge portions converging towards the leader end; said strip having an aperture intermediate the first end and the first zone, and said strip having at least one pair of substantially longitudinally extending slits, wherein each of the slits of said pair is transversely aligned relative to the other slit of said pair and on opposite sides of the longitudinal axis, such that a portion of at least one slit of said pair engages a portion of the strip to provide a locking action when the leader end and at least one opposing pair of abutment edge portions are passed through the aperture and the strip is subjected to an elongation load.