Container

Abstract

A container ( 1 ) comprising a compartment ( 4 ) which is defined by flexible walls and whose volume depends on the relative position of the walls, two opposite side walls ( 2 ) being joined along a common connecting portion ( 5 ). The container is characterised in that a first gas-filled duct means ( 11 ) is arranged in the connecting portion ( 5 ) along at least a first side ( 12 ) of the container ( 1 ). The invention also concerns a method of producing such a container by forming at least one gap in said side walls ( 2 ) in connection with the forming of the connecting portion ( 5 ) and, in connection with the filling of the container ( 1 ), filling each gap with gas and sealing it to form a gas-filled duct ( 11, 16, 18 ).

1 . A container ( 1 ) comprising a compartment ( 4 ) which is defined by flexible walls and whose volume depends on the relative position of the walls, two opposite side walls ( 2 ) being joined along a common connecting portion ( 5 ), characterised in 
 that a first gas-filled duct means ( 11 ) is arranged in the connecting portion ( 5 ) along at least a first side ( 12 ) of the container ( 1 ).    
     
     
         2 . A container ( 1 ) as claimed in  claim 1 , in which the first gas-filled duct means ( 11 ) is arranged in the connecting portion ( 5 ) also along a second side ( 13 ) of the container ( 1 ) opposite to the first side ( 12 ).  
     
     
         3 . A container ( 1 ) as claimed in  claim 1  or  2 , in which the first gas-filled duct means ( 11 ) comprises at least one gap arranged in said connecting portion ( 5 ) and formed between said side walls ( 2 ), said gap forming a gas-filled duct by a gaseous medium being introduced into the same.  
     
     
         4 . A container ( 1 ) as claimed in any one of the preceding claims, in which the first gas-filled duct means ( 11 ) is continuous along its entire length along each side.  
     
     
         5 . A container ( 1 ) as claimed in any one of the preceding claims, in which the connecting portion ( 5 ) on the first side ( 12 ) and/or the second side ( 13 ) of the container ( 1 ) comprises a carrying means ( 14 ) which accommodates a second gas-filled duct means ( 16 ).  
     
     
         6 . A container ( 1 ) as claimed in any one of the preceding claims, in which the first gas-filled duct means ( 11 ) is continuous with the second gas-filled duct means ( 16 ).  
     
     
         7 . A container ( 1 ) as claimed in any one of the preceding claims, in which the first gas-filled duct means ( 11 ) communicates with the second gas-filled duct means ( 16 ).  
     
     
         8 . A container ( 1 ) as claimed in any one of the preceding claims, in which the gas-filled duct means ( 11 ,  16 ,  18 )) are filled with air.  
     
     
         9 . A container ( 1 ) as claimed in any one of the preceding claims, which is made of a material containing a filler of mineral material and a binder of polyolefin material.  
     
     
         10 . A container ( 1 ) as claimed in  claim 9 , in which the mineral material is chalk (calcium carbonate).  
     
     
         11 . A method of producing a container ( 1 ) with features as claimed in any one of claims  1 - 10 , characterised in 
 that at least one gap is formed between the side walls ( 2 ) in said connecting portion ( 5 ) in connection with the forming thereof, and    that each gap is filled with gas and sealed to form a gas-filled duct ( 11 ,  16 ,  18 ) in connection with the filling of the container ( 1 ).