Tamper-Evident Lid

Abstract

The invention relates to a tamper-evident lid ( 1 ) for a container ( 2 ), said container comprising an opening edge ( 4 ) which runs around an upper container opening and, in particular, is flanged, with a lid piece ( 5 ) essentially covering the upper container opening and a lid edge ( 6 ), running essentially downwards from the lid piece towards the container, comprising, at least in some positions, a locking element ( 7 ) which grips below the opening edge, which may be definitively separated from the lid, in particular, together with a lower edge section ( 8 ) of the lid edge, for removal of the lid from the container. The lid edge runs essentially inclined downwards and outwards from the lid piece and the locking element is embodied as a locking edge ( 10 ), running in the circumferential direction of the lid.

1 . Tamper-evident lid for a container, the container comprising an opening edge running around an upper container opening and being in particular flanged, having a lid piece essentially covering the upper container opening, and a lid edge extending essentially downwards from the lid piece towards the container, the lid edge comprising a locking element at least in some positions gripping below the opening edge which locking element can be definitely separated from the lid in particular together with a lower edge end section of the lid edge for removing the lid from the container,
 characterized in that   the lid edge runs essentially inclined downwards and outwards from the lid piece and the locking element is designed as locking edge running in the circumferential direction of the lid, the lid edge comprising between the upper edge end section and its lower end at least one upper and one lower edge section which extend each inclined outwards away from the lid piece and are connected by an essentially vertical intermediate edge section.   
   
   
       2 . Lid according to  claim 1 ,
 characterized in that   the lid piece is essentially plane.   
   
   
       3 . Lid according to  claim 1  or  2 ,
 characterized in that   the lid piece comprises an edge flange running in the circumferential direction and essentially vertically projecting from it upwards.   
   
   
       4 . Lid according  claim 1  or  2 ,
 characterized in that   the lid edge is connected to the edge flange.   
   
   
       5 . Lid according  claim 1  or  2 ,
 characterized in that   the lid edge comprises an essentially inverted U-shaped upper edge end section, the edge flange being inserted in the U-opening and fixed there.   
   
   
       6 . Lid according  claim 1  or  2 ,
 characterized in that   the lid edge comprises between the upper edge end section and its lower end at least one upper and one lower edge section which extend each inclined outwards away from the lid piece and are connected by an essentially vertical intermediate edge section.   
   
   
       7 . Lid according  claim 1  or  2 ,
 characterized in that,   the lid edge comprises the essentially vertically extending lower edge end section between the lower edge section and the lower end.   
   
   
       8 . Lid according  claim 1  or  2 ,
 characterized in that   the intermediate edge section and the lower edge section extend inclined outwards with a smaller angle of inclination than the edge sections.   
   
   
       9 . Lid according  claim 1  or  2 ,
 characterized in that   the angles of inclination of the edge sections and/or of the intermediate and edge end sections are each the same.   
   
   
       10 . Lid according  claim 1  or  2 ,
 characterized in that   at least the lower edge end section has a two-layer design with outer and inner layer.   
   
   
       11 . Lid according  claim 1  or  2 ,
 characterized in that   the locking edge can be designed as prolongation of the inner layer.   
   
   
       12 . Lid according  claim 1  or  2 ,
 characterized in that   the inner layer furthermore extends essentially along the lower edge section with the corresponding angle of inclination.   
   
   
       13 . Lid according  claim 1  or  2 ,
 characterized in that   the locking edge essentially extends inclined upwards towards the container wall with the same angle of inclination as the lower edge section when the lid is placed on the container.   
   
   
       14 . Lid according  claim 1  or  2 ,
 characterized in that   the locking edge can be elastically deflected radially outwards.   
   
   
       15 . Lid according  claim 1  or  2 ,
 characterized in that   the locking edge comprises an end edge of cut at its free end essentially extending in parallel to the container wall when the lid is placed on.   
   
   
       16 . Lid according  claim 1  or  2 ,
 characterized in that   a tear device projects from the lid edge.   
   
   
       17 . Lid according  claim 1  or  2 ,
 characterized in that   in the region of the tear device and in particular at its front edge with respect to the tear direction, an essentially vertical tear aid is formed in the lid edge.   
   
   
       18 . Lid according  claim 1  or  2 ,
 characterized in that   the tear aid is designed as material weakening line.   
   
   
       19 . Lid according  claim 1  or  2 ,
 characterized in that   an edge separation aid extending in the circumferential direction is formed essentially perpendicularly to the tear aid in the lid edge spaced apart from its lower end.   
   
   
       20 . Lid according  claim 1  or  2 ,
 characterized in that   the edge separation and is arranged closer to the lower end of the lid edge than the opening edge of the container when the lid is placed on the container.   
   
   
       21 . Lid according  claim 1  or  2 ,
 characterized in that   the lid is essentially formed of one or several paper layers.   
   
   
       22 . Lid according  claim 1  or  2 ,
 characterized in that   at least in the region of the lid piece, a fluid-tight plastic foil is applied to its bottom side.   
   
   
       23 . Lid according  claim 1  or  2 ,
 characterized in that   the lid is stackable and unstackable.   
   
   
       24 . Lid according  claim 1  or  2 ,
 characterized in that   an internal diameter of the lid edge and in particular of the lower edge section is larger than an external diameter of the upper edge section at least at its lower end.   
   
   
       25 . Lid according  claim 1  or  2 ,
 characterized in that   the locking edge is designed as stack stop element which abuts the upper end section from outside when the lids are stacked.