Plastic closure comprising a drinking or pouring neck and foil piercing device

Abstract

The closure consists of a lower closure part, which forms a drinking and pouring neck, in addition to a closure cap, which is pivotally connected to the lower closure part by a hinge. The drinking and pouring neck sits in a planar disc, onto which the hinge of the closure cap is formed. Below the disc, the drinking and pouring neck is surrounded by a deformable wall that forms a cone or dome, said wall extending obliquely downwards from the neck and being connected to the outer edge of the lower closure part. The drinking and pouring neck projects beneath the underside of said deformable wall and the lower edge of said neck forms at least two piercing elements. A spacer strip is formed onto the lower edge of the closure cap by means of one or more material bridges that act as predetermined breaking points. The spacer band guarantees that the cap has never been opened.

1 . A plastic closure comprising a drinking or pouring neck and foil piercing device, consisting of a closure bottom part, which forms a drinking and pouring neck, as well as a closure cap, which is connected by a hinge pivotably to the closure bottom part, characterized in that the drinking and pouring neck sits in a planar disk, onto which the hinge of the closure cap is formed, in that beneath the disk the drinking and pouring neck is enclosed by a deformable wall, which forms a concave cone or a convex dome, and which wall leads obliquely downward from the neck and is connected to the outer edge of the closure bottom part, the drinking and pouring neck projecting over this deformable wall on the underside thereof and its lower edge forming at least two piercing elements, and in that onto the lower edge of the closure cap a distancing band is formed via one or more material bridges acting as predetermined breaking points, the distancing band, in the closed state of the closure cap, enclosing the deformable wall and resting on the outer edge of the closure bottom part, so that the closure cap, after this distancing band has been torn off, can be pressed downward, at the same time as the disk, and the drinking and pouring neck passing through it, are depressed and the deformable wall is deformed. 
   
   
       2 . The plastic closure comprising a drinking or pouring neck and foil piercing device as claimed in  claim 1 , characterized in that formed onto the edge of the disk are latching elements, which, when the planar disk is depressed, engage on the upper edge of the lower closure part, so that the disk is hereafter locked in the depressed position on the closure bottom part. 
   
   
       3 . The plastic closure comprising a drinking or pouring neck and foil piercing device as claimed in  claim 1 , characterized in that the deformable wall enclosing the drinking and pouring neck is of dome-shaped configuration, the drinking and pouring neck being seated in the center of the formed dome. 
   
   
       4 . The plastic closure comprising a drinking or pouring neck and foil piercing device as claimed in  claim 1 , characterized in that the deformable wall enclosing the drinking and pouring neck forms a cone, the drinking and pouring neck being seated in the center of this cone. 
   
   
       5 . The plastic closure comprising a drinking or pouring neck and foil piercing device as claimed in  claim 1 , characterized in that the deformable wall has at least one sub-region as a deformation aid, which sub-region lifts off downward or upward from the wall surface thereof. 
   
   
       6 . The plastic closure comprising a drinking or pouring neck and foil piercing device as claimed in  claim 1 , characterized in that the deformable wall has at least one rib as a twisting aid, running at an oblique angle to its radial, which rib is designed to set the pouring neck and its piercing elements in rotation as the wall is deformed. 
   
   
       7 . The plastic closure comprising a drinking or pouring neck and foil piercing device as claimed in  claim 1 , characterized in that formed on the underside of the closure cap is a ring, which, when the closure cap is swung shut, encloses the upper edge of the drinking and pouring neck, and the closure bottom part, at the place where the deformable wall adjoins its outer edge, has a circumferential edge, which is designed to act as a supporting surface for the lower edge of the distancing band. 
   
   
       8 . The plastic closure comprising a drinking or pouring neck and foil piercing device as claimed in  claim 1 , characterized in that the closure bottom part forms on its underside a threaded cap with internal thread, which cap can be screwed onto the threaded neck of a container. 
   
   
       9 . The plastic closure comprising a drinking or pouring neck and foil piercing device as claimed in  claim 1 , characterized in that the closure bottom part has an inner, circumferential or part-circumferential bead, or a groove, with which it can be impacted on over a fittingly shaped pouring neck of a container. 
   
   
       10 . The plastic closure comprising a drinking or pouring neck and foil piercing device as claimed in  claim 1 , characterized in that the closure bottom part passes into a flange protruding radially therefrom, which flange can be applied over the foil-sealed hole of a container.