Reclosable Pouring Element for Composite Cardboard/Plastic Packaging

Abstract

A re-closable pouring element for cardboard/plastic composite packages, especially for drinks packages, which comprises an encompassing fixing flange as well as a frame element that is provided with an outer thread and an inner thread, a cutting element that has an outer thread, and a screw cap having an inner thread, wherein the cutting element is produced in the spraying position at the end of the frame element opposite to the fixing flange and together with this has been injection moulded across at least one connecting bridge in a unitary manner, and wherein the cutting element is situated in the interior of the frame element at the assembly position of the pouring element.

1 . A re-closable pouring element for cardboard/plastic composite packages, especially for drinks packages, comprising:
 an encompassing fixing flange;   a frame element having an outer thread and an inner thread;   a cutting element that has an outer thread; and   a screw cap having an inner thread;   wherein the cutting element is produced in a spraying position at an end of the frame element opposite to the fixing flange and together with this has been injection moulded across at least one connecting bridge in a unitary manner, and wherein the cutting element is situated in the interior of the frame element at an assembly position of the pouring element,   wherein the outer thread of the cutting element comprises two thread sections each having two thread lines each of which stretches along at least a quarter of the length of the cutting element and have an upward slope that is steeper than the inner thread of the screw cap, wherein the inner thread of the frame element comprises two thread sections each of which stretches along about one half of the length and have an upward slope that corresponds to the upward slope of the outer thread of the cutting element, wherein the frame element has an encompassing lip on its inner perimeter and is directed downwards, and wherein the cutting element is provided with a continuous groove in the region of its outer thread that is parallel to the lip and is adapted for reception of the lip with the cutting element projecting from the frame element.   
   
   
       2 . The pouring element according to  claim 1 , wherein the outer thread of the frame element is provided with a lower edge that in cross section is parallel to the fixing flange and with a slanting upper edge and that operates in conjunction with the inner thread in the screw cap. 
   
   
       3 . The pouring element according to  claim 1 , wherein the outer thread comprises a number of individual thread sections. 
   
   
       4 . The pouring element according to  claim 1 , wherein the cutting element is provided with a number of encompassing, radially orientated and outwardly directed projections which work together with corresponding inner lugs on the frame element and thereby prevent a reverse turning of the cutting element out of the frame element. 
   
   
       5 . The pouring element according to  claim 4 , wherein the projections situated on the outside of the cutting element comprise radially orientated lugs. 
   
   
       6 . The pouring element according to  claim 4 , wherein the projections are formed from each of the horizontal extensions of the upper ends of the thread sections of the cutting element. 
   
   
       7 . The pouring element according to  claim 5 , wherein the lugs and the thread sections of the cutting element enter in one another. 
   
   
       8 . The pouring element according to  claim 1 , wherein the cutting element is provided with at least one separation in the region between the thread sections of the cutting element. 
   
   
       9 . The pouring element according to  claim 1 , wherein the cutting element is provided with a number of encompassing, separately arranged and radially projecting lugs on its outer side, the lugs are directed from the upper edge of the cutting element downwards and are formed from each of the horizontal extensions of the upper ends of the thread sections. 
   
   
       10 . The pouring element according to  claim 5 , wherein the lower ends of the lugs are disposed together along a surface perpendicular to a vertical axis of the cutting element in order to provide support on the lip for the cutting element as it extends out of the frame element. 
   
   
       11 . The pouring element according to  claim 9 , wherein the lower ends of the lugs are disposed together along a surface perpendicular to a vertical axis of the cutting element in order to provide support on the lip for the cutting element as it extends out of the frame element. 
   
   
       12 . The pouring element according to  claim 1 , wherein the screw cap is provided with at least one internally placed pressure-transferring element and the cutting element has a number of lugs on the inside of the cutting element, wherein the initial twisting open of the screw cap over the lugs on the inside of the cutting element brings about the movement of the cutting element. 
   
   
       13 . The pouring element according to  claim 1 , wherein at least one of the pressure transferring elements is substantially trapezoidally shaped and orientated in a concentric manner to the screw cap. 
   
   
       14 . The pouring element according to  claim 1 , wherein the pouring element is provided with an originality seal. 
   
   
       15 . The pouring element according to  claim 14 , wherein a flat plate injection moulded in a unitary manner together with the screw cap and projecting radially from the screw cap serves as the originality seal, wherein the originality seal is firmly attached to the flange on the frame element prior to the final assembly of the pouring element.