Container Wall for a Container Covered by a Film

Abstract

Container wall preferably made of concrete, in particular for containers for the storage and the fermentation of fermenting agents, which in the vicinity of the upper edge has an outwardly open clamping channel with an undercut for clampingly receiving an edge of at least one film made of plastics material covering the container on the upper face, the clamping channel having a narrow, outwardly open entry slot, the height thereof being smaller than the height of an elongate insertion profile insertable into the clamping channel, around which the film may be wound, the cross-sectional dimensions of the clamping channel, the entry slot and the insertion profile being such that the insertion profile in position relative to the entry slot is insertable via said entry slot into the clamping channel and is retained against being moved out of the clamping channel when the film wound around the insertion profile is under tension, characterised in that the narrow entry slot is only defined by an upper projection, whilst the approximately planar lower wall of the clamping channel merges without projections with the entry slot.

1 . A container wall preferably made of concrete, in particular for containers for the storage and the fermentation of fermenting agents, which has, in the vicinity of the upper edge, an outwardly open clamping channel with an undercut for clampingly receiving an edge of at least one film made of plastic covering the container on the upper face, the clamping channel ( 112 ) having a narrow, outwardly open entry slot ( 124 ), the height thereof being smaller than the height of an elongate insertion profile ( 126 ) insertable into the clamping channel, around which the film ( 130 ) may be wound, the cross-sectional dimensions of the clamping channel ( 112 ), the entry slot ( 124 ) and the insertion profile ( 126 ) being such that the insertion profile ( 126 ) in a first position is insertable into the clamping channel ( 112 ) and in a second position is retained against being moved out of the clamping channel when the film ( 130 ) wound around the insertion profile is under tension, wherein the narrow entry slot is only defined by an upper projection, whilst the approximately planar lower wall of the clamping channel merges without projections with the entry slot. 
     
     
         2 . Container wall according to  claim 1 , wherein the insertion profile ( 126 ) has a predetermined breaking point ( 132 ), the insertion profile ( 126 ) bending substantially about a horizontal axis when a predetermined force acts on the film ( 130 ). 
     
     
         3 . Container wall according to  claim 1 , wherein the insertion profile is produced from a material that when a maximum permitted force is exerted on the film, loosens or releases the non-positive connection of the film by its own deformation. 
     
     
         4 . Container wall according to  claim 1 , wherein an annular clamping profile is arranged in the upper region of the container wall, said clamping profile having the inner clamping channel with an outwardly open entry slot, wherein in addition the region of the film in the vicinity of the wall encloses an angle relative to the horizontal and the clamping profile has an upper limb and a lower limb which is inclined relative to the upper limb of the clamping profile facing the film so that it extends approximately parallel or at a small angle to the film until the maximum permitted tensile load is applied to the film, such that a force applied by the film on the upper limb acts to its greatest extent as compressive force on said limb. 
     
     
         5 . Container wall according to  claim 1 , wherein the clamping channel and/or the clamping profile are moulded in the material of the concrete wall. 
     
     
         6 . Container wall according to  claim 5 , wherein a profiled rail ( 36 ,  56 ,  222 ) is at least partially cast into the concrete wall. 
     
     
         7 . Container wall according to  claim 1 , wherein the profiled rail ( 18   a ,  222 ) can be fastened from outside to the container wall. 
     
     
         8 . Container wall according to  claim 5 , wherein the upper edge or the upper limb of the profiled rail is flush with the upper face of the container wall ( 14 ). 
     
     
         9 . Container wall according to  claim 5 , wherein the upper face ( 44 ) of the container wall rises towards the outer face. 
     
     
         10 . Container wall according to  claim 5 , wherein the profiled rail ( 36 ) is arranged at a distance below the upper face of the container wall ( 14 ) and the outer edge of the wall upper face is rounded. 
     
     
         11 . Container wall according to  claim 1 , wherein the clamping profile is made up of two or more rail portions. 
     
     
         12 . The device according to  claim 1 , wherein the clamping profile ( 56 ) consists of rail portions divided in the longitudinal plane, which are non-positively connected together in the web region. 
     
     
         13 . Container wall according to  claim 1 , wherein the clamping channel and/or the clamping profile ( 36 ,  18   a ,  222 ) are formed by a permanent shuttering. 
     
     
         14 . Container wall according to  claim 13 , wherein the permanent shuttering is rail-shaped ( 36 ,  18   a ,  222 ) and/or consists of rail portions. 
     
     
         15 . Container wall according to  claim 1 , wherein the lower wall in the vicinity of the entry slot of the clamping channel has raised positions in longitudinal sections which are arranged to be removable or movable, so that in a first position they form an abutment for the insertion profile located in the clamping channel and in a second position the abutment is removed from the entry slot. 
     
     
         16 . Container wall according to  claim 15 , wherein abutment elements ( 326 ,  328 ) which may be inserted or screwed into openings of the lower wall ( 316 ) are provided. 
     
     
         17 . Container wall according to  claim 15 , wherein folding mechanisms ( 408 ) mounted on the lower wall ( 404 ) are provided. 
     
     
         18 . Container wall according to  claim 15 , wherein clamping elements ( 330 ) are provided which are configured to be able to be removably clamped at the front onto the lower wall ( 316 ). 
     
     
         19 . Container wall according to  claim 1 , wherein the lower wall consists of wall portions ( 502 ) spaced apart in the longitudinal direction of the clamping profile ( 500 ).