Patent ID: 8033427

Claim:
A coupling arrangement for coupling a withdrawal arrangement ( 4 ) to a package ( 1 ) with liquid or essentially liquid contents ( 3 ), which withdrawal arrangement ( 4 ) is intended for the withdrawal of the contents ( 3 ) from the package ( 1 ), wherein: at least significant parts of the package ( 1 ) consist of synthetic material, the coupling arrangement ( 5 ) comprises an inner coupling device ( 9 ) that is arranged within the package ( 1 ) and welded to the wall ( 2 ) of the package ( 1 ) and that comprises an outer part ( 10 ) that is provided with holes through which part it is arranged on the inner surface of an unbroken part ( 11 ) of the wall ( 2 ) of the package ( 1 ), the coupling arrangement ( 5 ) comprises an outer coupling device ( 12 ) that is arranged on the withdrawal arrangement ( 4 ), the outer coupling device ( 12 ) comprises a tube section ( 14 ) with which the unbroken part ( 11 ) of the wall of the package ( 1 ) can be broken and that can be introduced into the hole ( 15 ) in the outer part ( 10 ) of the inner coupling device ( 9 ) in order to be coupled to this such that the contents ( 3 ) in the package ( 1 ) can be withdrawn through the tube section ( 14 ), and the outer coupling device ( 12 ) comprises at least one protruding part ( 16 ) and the inner coupling device ( 9 ) at least one space ( 17 ) into which the protruding part ( 16 ) of the outer coupling device ( 12 ) can be introduced so that the inner and outer coupling devices ( 9 , 12 ) can be coupled together, the at least one space ( 17 ) having an inner bottom part ( 17 b ) and being open towards the unbroken part ( 11 ) of the wall ( 2 ) and at an outer edge ( 10 c ) of the outer part ( 10 ) of the inner coupling device ( 9 ), the protruding part ( 16 ) of the outer coupling device ( 12 ) and/or the space ( 17 ) and/or unbroken parts ( 11 ) of the wall of the package ( 1 ) which covers the space ( 17 ), are designed such that said unbroken parts ( 11 ) of the wall ( 2 ) can be inserted into the space ( 17 ) by the protruding part ( 16 ) without breaking said parts ( 11 ).