Combination packaging container and method of producing it

Abstract

A combination packaging container includes a beaker-shaped inner container with a container jacket, a base and a flange projecting out from the container jacket in the region of its open end, as well as a sleeve-shaped outer part surrounding the inner container at its container jacket with end regions spaced apart from one another in the direction of a longitudinal axis. The inner container is laid against and molded onto an internal face of the sleeve-shaped outer part. The sleeve-shaped outer part is of a single-layered design between its end regions spaced apart from one another in the direction of the longitudinal axis. An end face of the outer part lying opposite the flange constitutes a standing surface for the combination packaging container.

What is claimed is: 
     
         1 . A combination packaging container comprising a beaker-shaped inner container with a container jacket, a base and a flange projecting out from the container jacket in a region of an open end of the beaker-shaped inner container, and a sleeve-shaped outer part surrounding the inner container at the container jacket of the beaker-shaped inner container with end regions spaced apart from one another in a direction of a longitudinal axis, wherein the container jacket and the sleeve-shaped outer part form a container wall, as well as co-operating supporting means to enable several combination packaging containers of the same type to be stacked one inside the other, and the inner container is molded lying partially against an internal face of the sleeve-shaped outer part and an end face of the sleeve-shaped outer part facing the flange is disposed immediately adjacent to a bottom face of the flange facing the base of the inner container or lies against the bottom face of the flange, wherein the combination packaging container has at least one pinched region projecting in a direction towards the longitudinal axis in a portion of the container wall of the base region, the pinched region being formed both in the sleeve-shaped outer part and in the container jacket, the pinched region forming a kink in the container wall, by means of which kink the container wall is offset in the direction towards the longitudinal axis, the pinched region comprising one of the supporting means and forming a first and another wall portion respectively between the pinched region and the two end regions of the sleeve-shaped outer part. 
     
     
         2 . The combination packaging container as claimed in  claim 1 , wherein the sleeve-shaped outer part is of a single-layered design between the end regions of the sleeve-shaped outer part spaced apart from one another in the direction of the longitudinal axis with the exception of a joining zone in an overlap region. 
     
     
         3 . The combination packaging container as claimed in  claim 1 , wherein the sleeve-shaped outer part has a circumferentially extending fold at an internal face of the sleeve-shaped outer part in only one portion facing the base wherein a supporting region projecting in the direction towards the longitudinal axis is provided at a terminal end of the fold in the container jacket facing away from the base, which supporting region comprises a first one of the supporting means, and the pinched region is disposed in the region of the terminal end of the fold. 
     
     
         4 . The combination packaging container as claimed in  claim 1 , wherein an end face of the sleeve-shaped outer part lying opposite the flange comprises a standing surface for the combination packaging container. 
     
     
         5 . The combination packaging container as claimed in  claim 1 , wherein the pinched region is based on a step-shaped design projecting in the direction towards the longitudinal axis. 
     
     
         6 . The combination packaging container as claimed in  claim 1 , wherein the pinched region of the container jacket has a height in a radial direction, by reference to the longitudinal axis, which is longer than an unformed initial thickness of the sleeve-shaped outer part. 
     
     
         7 . The combination packaging container as claimed in  claim 1 , wherein a thickness of the first wall portion of the sleeve-shaped outer part between the pinched region and the end region facing the base is reduced in a radial direction, by reference to the longitudinal axis, by an amount with a lower limit of 2% and an upper limit of 20% compared with an unformed initial thickness of the first wall portion. 
     
     
         8 . The combination packaging container as claimed in  claim 3 , wherein the supporting region has a height in a radial direction, by reference to the longitudinal axis, which is greater than a thickness of the fold. 
     
     
         9 . The combination packaging container as claimed in  claim 1 , wherein the other wall portion of the sleeve-shaped outer part extends continuously in a straight line between the pinched region and the end region facing the flange as viewed in axial section. 
     
     
         10 . The combination packaging container as claimed in  claim 1 , wherein the other wall portion of the sleeve-shaped outer part between the pinched region and the end region facing the flange is conical, tapering from the flange in a direction towards the base. 
     
     
         11 . The combination packaging container as claimed in  claim 1 , wherein the first wall portion of the sleeve-shaped outer part extends in a continuous straight line between the pinched region and the end region facing the base as viewed in axial section. 
     
     
         12 . The combination packaging container as claimed in  claim 1 , wherein the first wall portion of the sleeve-shaped outer part has a less pronounced taper between the pinched region and the end region facing the base than the other wall portion of the sleeve-shaped outer part. 
     
     
         13 . The combination packaging container as claimed in  claim 1 , wherein the first wall portion of the sleeve-shaped outer part extends parallel with the longitudinal axis between the pinched region and the end region facing the base. 
     
     
         14 . The combination packaging container as claimed in  claim 1 , wherein the end face of the sleeve-shaped outer part facing the base constitutes the other supporting means. 
     
     
         15 . The combination packaging container as claimed in  claim 3 , wherein a part-portion of the container jacket as well as the base extend beyond the end region of the sleeve-shaped outer part facing the base. 
     
     
         16 . The combination packaging container as claimed in  claim 15 , wherein an external face of the part-portion of the container jacket facing away from the longitudinal axis extends at least flat in the same plane as an external face of the sleeve-shaped outer part. 
     
     
         17 . The combination packaging container as claimed in  claim 15 , wherein at least one indentation projecting in the direction towards the longitudinal axis is disposed in the part-portion of the container jacket. 
     
     
         18 . The combination packaging container as claimed in  claim 1 , wherein another pinched region directed in a radial direction towards the longitudinal axis is provided in the region of the other wall portion between the pinched region and the end region of the sleeve-shaped outer part facing the flange. 
     
     
         19 . The combination packaging container as claimed in  claim 18 , wherein the other pinched region is spaced at a distance apart from the end region of the sleeve-shaped outer part facing the flange in an axial direction towards the base. 
     
     
         20 . The combination packaging container as claimed in  claim 18 , wherein a dimension of the other pinched region in the container jacket of the inner container is bigger than a dimension of the other pinched region in the sleeve-shaped outer part.