Container comprising a body and a cover

Abstract

The invention concerns a container having a barrel-like body and a fitting sealed lid which during transport and storage prevents contamination of the content, which permits multiple opening and closing without losses of sealing integrity and which manages without an elastomeric seal as an additional material component, which is distinguished in that at least in the braced condition the lid bears sealingly with respect to the body against at least two mutually spaced sealing locations which are peripherally continuous in an annular shape around the axis of symmetry of the container.

1 . A container comprising a body ( 1 ) and a lid ( 2 ), as well as a clamping device for sealingly bracing the lid ( 2 ) with respect to the body ( 1 ), characterised in that at least in the braced condition the lid ( 2 ) bears sealingly with respect to the body ( 1 ) against at least two mutually spaced sealing locations ( 4 ,  5 ) which are peripherally continuous in an annular shape around the axis of symmetry ( 10 ) of the container.  
     
     
         2 . A container as set forth in  claim 1  characterised in that the body ( 1 ) and the lid ( 2 ) each only consist of a single material, in particular plastic material, in particular the same plastic material.  
     
     
         3 . A container as set forth in one of the preceding claims characterised in that the sealing locations ( 4 ) and ( 5 ) are arranged axially spaced from each other.  
     
     
         4 . A container as set forth in one of the preceding claims characterised in that the sealing locations ( 4 ) and/or ( 5 ) are divided into partial sealing locations ( 5   a,    5   b ).  
     
     
         5 . A container as set forth in one of the preceding claims characterised in that at the sealing locations ( 4 ) and ( 5 ) or the partial sealing locations ( 5   a,    5   b )respectively a sealing leg ( 11 ) presses with its outside surface, in particular with line contact, against a sealing surface ( 12 ) and is movable along said sealing surface ( 12 ) by virtue of the bracing effect by means of the clamping device.  
     
     
         6 . A container as set forth in one of the preceding claims characterised in that at the first sealing location ( 4 ) the sealing leg ( 11   a ) is the freely ending edge ( 1   a ) of the body and the sealing surface ( 12   a ) is an annular groove ( 6 ) of V-shaped cross-section in the underside of the lid ( 2 ).  
     
     
         7 . A container as set forth in one of the preceding claims characterised in that at the sealing location ( 5 ) the sealing surface ( 12 ) is an annular surface, which extends transversely with respect to the axis of symmetry ( 10 ) and which is arranged outside the wall ( 7 ) of the body ( 1 ), on a radially outwardly facing annular flange ( 8 ), and the sealing leg ( 11   b ) is a sealing leg which extends peripherally in a ring configuration and which is provided in one piece with the outer edge ( 2   a ) of the lid.  
     
     
         8 . A container as set forth in  claim 7  characterised in that the edge of the lid has two radially spaced, mutually concentrically arranged sealing legs ( 11   b,    11   c ) which bear against the same sealing surface ( 12   b ) in the braced condition.  
     
     
         9 . A container as set forth in one of the preceding claims characterised in that the edge ( 2   a ) of the lid, at least in the connecting region between the sealing legs ( 11   b,    11   c ), is of such a stable nature that no substantial deviation from the annular shape of the edge ( 2   a ) of the lid can be produced by clamping of the clamping device.  
     
     
         10 . A container as set forth in one of the preceding claims characterised in that the sealing surface ( 12   b ) extends perpendicularly to the axis of symmetry ( 10 ).  
     
     
         11 . A container as set forth in one of the preceding claims characterised in that the sealing surface ( 12   b ) is arranged at an acute angle, in particular, in the case of a sealing surface ( 12   b ) facing towards the open end of the body ( 1 ), in such a way as to fall away radially inwardly towards the bottom of the body ( 1 ).  
     
     
         12 . A container as set forth in one of the preceding claims characterised in that considered in cross-section the lid ( 2 ) comprises radially outwardly a plate-shaped central region ( 2   d ), a groove region ( 2   c ) which is curved up axially outwardly in a U-shape, an annular connecting region ( 2   b ) adjoining the radially outward free end of the groove region, and the adjoining edge ( 2   a ) of the lid, which are provided in one piece with each other, and wherein the transition between the connecting region ( 2   b ) and at least one of the adjoining regions is of a smaller wall thickness than the other regions.  
     
     
         13 . A container as set forth in one of the preceding claims characterised in that the edge ( 2   a ) of the lid is arranged radially outside the connecting region ( 2   b ).  
     
     
         14 . A container as set forth in one of the preceding claims characterised in that the connecting region ( 2   b ) extends axially.  
     
     
         15 . A container as set forth in one of the preceding claims characterised in that the annular groove ( 6 ) has a half-round bottom and the bottom of the groove is wider than the wall thickness of the body edge ( 1   a ) which is also rounded.  
     
     
         16 . A container as set forth in one of the preceding claims characterised in that the free end of the edge ( 1   a ) of the body in the form of a sealing leg ( 11   a ) of the first sealing location ( 4 ) assumes, from the sealing surface ( 12   b ) of the second sealing location ( 5 ), an axial spacing which is slightly larger than the bottom of the annular groove ( 6 ) from the free end of the sealing leg ( 11 ) or ( 11   b ) and ( 11   c ) in the unstressed condition of the lid.  
     
     
         17 . A container as set forth in one of the preceding claims characterised in that the diameter of the body ( 1 ), measured from the wall center to the wall center at the free end, that is to say at the edge ( 1   a ) of the body, differs from the diameter of the annular groove ( 6 ) of the lid ( 2 ), measured from the center of the bottom of the groove to the center of the bottom of the groove, and in that respect the diameter of the body is preferably greater than the diameter of the annular groove ( 6 ) so that when the lid is fitted without bracing the lid is supported with its outer flank of the annular groove on the edge ( 1   a ) of the body.  
     
     
         18 . A container as set forth in one of the preceding claims characterised in that the clamping device is a clamping ring ( 3 ) with a radially inwardly directed groove ( 3   a ) whose flanks move away from each other towards the free inner end.  
     
     
         19 . A container as set forth in one of the preceding claims characterised in that the rear side ( 13 ) of the edge ( 2   a ) of the lid, which faces away from the flange ( 8 ), and the rear side ( 14 ) of the flange ( 8 ), which faces away from the lid, are shaped conically corresponding to the internal flanks of the annular groove ( 3   a ) of the clamping ring ( 3 ).  
     
     
         20 . A container as set forth in one of the preceding claims characterised in that the conical rear side of the flange ( 8 ) of the body ( 1 ) is formed at least by legs ( 15 ) of the flange ( 8 ), which are arranged distributed over the periphery.  
     
     
         21 . A container as set forth in one of the preceding claims characterised in that the wall thickness of the body ( 1 ) at the edge ( 1   a ) of the body, in particular from the flange ( 8 ) to the free end, is greater than between the flange ( 8 ) and the bottom ( 16 ) of the body.  
     
     
         22 . A container as set forth in one of the preceding claims characterised in that the annular groove ( 6 ) has an intermediate angle between its outer flank ( 6   a ) and its inner flank ( 6   b ) of 5-50°, in particular 10-30°.  
     
     
         23 . A container as set forth in one of the preceding claims characterised in that the annular groove ( 6 ) in the lid ( 2 ) has a bottom which is narrower than the wall thickness of the edge ( 1   a ) of the body at the free end.  
     
     
         24 . A container as set forth in one of the preceding claims characterised in that the connecting region ( 2   b ) of the lid enlarges conically from the groove region ( 2   c ) to the edge ( 2   a ) of the lid.