Container body end with reliable sealing

Abstract

The invention relates to a container with a closure between an open body end of a container body and the edge region of a lid that can be pressed into the open body end in a sealing manner. The lid has a seal in an edge region. The body end ( 27 ) is bent outwardly by 180°, with a radius that is as small as possible, in accordance with the sheet metal thickness. The bent portion ( 27 ) rests with a first part portion ( 3 ) directly on the outer face of the container body. The end of this first portion ( 3 ), in order to form two further part portions ( 8, 11 ), is bent radially outwardly with respect to the container axis and then axially downwardly.

1 . Container with a closing between an open body end of a container body ( 1 ) and an edge region ( 2   a ) of a lid ( 2 ) configured to be sealingly pressed into the open body end, wherein
 the lid ( 2 ) has a seal ( 4 ) in the edge region;   the body end—provided to cooperate with the seal ( 4 )—is bent outwardly by 180° with a smallest possible radius of curvature or a largest possible curvature at a first bending point ( 7 ), and the whole bent portion ( 27 ) rests with a first part portion ( 3 ) directly on an outer face of the container body ( 1 ), is bent from a container axis substantially radially outwards at an end of the first part portion ( 3 ) and is then bent axially downwards, to form two further part portions ( 8 ,  11 ).   
     
     
         2 . Container according to  claim 1 , wherein the whole outwardly bent portion ( 27 ), at a spacing below the first bending point, as the opening edge ( 7 ), is angled radially outwardly relative to the container axis, preferably inclined slightly downwardly, with respect to an opening face ( 8   a ) facilitating the opening of the container, the axial spacing of said opening face from the opening edge ( 7 ) being selected such that when the lid ( 2 ) is pressed in in a sealing manner, the opening face ( 8   a ) lies under a lower, rolled-in edge ( 2   b ) of the lid edge region ( 2   a ) with the formation of a gap ( 9 ) suitable for the insertion of a flat opening tool. 
     
     
         3 . Container according to  claim 2 , wherein the edge region of the container body at the end of the opening face ( 8   a ) parallel to the container axis is bent slightly downwardly ( 8   b ), and this part portion ( 11 ) is provided at opposing points with fastening elements suitable for the attachment of a carrying lug ( 12 ), in particular with perforations ( 12   a ). 
     
     
         4 . Container according to  claim 3 , wherein the downwardly bent part portion ( 11 ), at its lower end, is bent in the radial direction with respect to the container axis toward the axis with the formation of an approximately right-angled corner ( 11   a ), by means of which, when the lid ( 2 ) is pressed on, a securing lip ( 14   a,    24   a,    26   a ) connected to the lid and being used to axially secure the sealing point of the lid is able to grip. 
     
     
         5 . Container according to  claim 4 , wherein the securing lip ( 14   a,    24   a ) is configured close to the lower end of a flexible holding element ( 14 ,  24 ) connected to the lid ( 2 ). 
     
     
         6 . Container according to  claim 4 , wherein the securing lip ( 26   a ) is configured on a securing ring ( 25 ) suitable for use in the field of transporting dangerous goods. 
     
     
         7 . Container according to  claim 6 , wherein the securing ring ( 25 ) is destructible to open the container ( 1 ). 
     
     
         8 . Container according to  claim 1 , wherein the body end is bent outwardly by 180° at the radius of curvature configured in accordance with the sheet metal thickness. 
     
     
         9 . Container according to  claim 1 , wherein the container body ( 1 ) and the edge region ( 2   a ) of the lid ( 2 ), configured to be pressed in a sealing manner into the open body end, are made of sheet metal. 
     
     
         10 . Closing end of a body end of a container body ( 1 ) suitable to be closed, the container body made of sheet metal, adapted for sealingly pressing an edge region ( 2   a ) of a lid ( 2 ) made of sheet metal therein, wherein
 the sheet metal lid ( 2 ) has a seal ( 4 ) in the edge region;   the body end is bent outwardly by 180°, running closely ( 7 ), and the bent portion ( 27 ) rests with a first part portion ( 3 ) directly on an outer face of the container body, a further portion ( 8 ) is bent substantially radially outward at an end of the first portion ( 3 ) and a third portion ( 11 ) is bent axially downward from an end ( 8   b ) of the second portion.   
     
     
         11 . Closure end according to  claim 10 , wherein the portion ( 27 ) is bent with a smallest possible radius (d), in particular the first bend takes place in such a way that, as the sharp zone, it has a thickness substantially corresponding to two to a maximum of three sheet metal thicknesses, to cooperate in a sealing manner with the seal ( 4 ). 
     
     
         12 . Closure end according to  claim 10 , wherein the outwardly bent portion ( 27 ), at a spacing below a first bending point ( 7 ), is angled radially outwardly relative to the container axis, preferably inclined slightly downwardly, with respect to an opening face ( 8   a ) facilitating the opening of the container ( 1 ), the axial spacing of said opening face from the first bending point ( 7 ) being selected such that when the lid ( 2 ) is pressed in in a sealing manner, the opening face ( 8   a ), with the formation of a slight gap ( 9 ) to insert a flat opening tool, lies below a lower, rolled-in edge ( 2   b ) of the lid edge region. 
     
     
         13 . Closure end according to  claim 12 , wherein the bent whole portion ( 27 ) of the container body, at the end of the opening face ( 8   a ) parallel to the container axis, is bent slightly downwardly, and the part portion ( 11 ) formed thereby at opposing points is provided with fastening elements suitable for attaching a carrying lug ( 12 ), for example with perforations ( 12   a ). 
     
     
         14 . Closure end according to  claim 13 , wherein the third part portion ( 11 ) bent downwardly at its lower end ( 11   a ) is bent in the radial direction with respect to the container axis toward the axis with the formation of a corner, by means of which, when the lid ( 2 ) is pressed in, a securing lip ( 14   a,    24   a,    26   a ) connected to the lid and allowing the axial securing of the sealing point of the lid is able to grip. 
     
     
         15 . Closure end according to  claim 14 , wherein the securing lip ( 14   a,    24   a ) is configured close to the lower end of a flexible holding element ( 14 ,  24 ) connected to the lid ( 2 ). 
     
     
         16 . Closure end according to  claim 14 , wherein the securing lip ( 26   a ) is configured on a securing ring ( 25 ). 
     
     
         17 . Closure end according to  claim 16 , wherein the securing ring ( 25 ) is destructible to open the container ( 1 ). 
     
     
         18 . Method for producing or shaping a body end of a container body ( 1 ) made of sheet metal, comprising the following steps:
 the body end is bent outwardly by 180°, running closely ( 7 );   the bent portion ( 27 ) rests with a first part portion ( 3 ) directly on an outer face of the container body;   a further portion ( 8 ) is bent outwards, substantially radially or in an inclined manner with respect to a container axis, at an end ( 3   a ) of the first part portion ( 3 );   a third portion ( 11 ) is bent axially downwardly from one end ( 8   b ) of the second portion.