Vacuuming Device Comprising a Vacuum Cleaner and a Bag Filter

Abstract

The invention relates to a vacuum-cleaning apparatus comprising a vacuum cleaner and a filter bag, in which the filter bag is formed as a non-woven fabric filter bag, as a disposable filter bag and as a flat bag having a first filter bag wall and a second filter bag wall, the filter bag has at least one surface fold, wherein each surface fold comprises areas that are positioned within the surface area of the filter bag wall, and areas that project over the surface area of the filter bag wall and can be unfolded during the vacuum-cleaning, the vacuum cleaner comprises a filter bag receiving space with rigid walls, wherein on the walls of the filter bag receiving space at least a first spacer device is provided to space the areas of at least one surface fold positioned within the surface area of the filter bag wall away from the wall of the filter bag receiving space, and at least a second spacer device is provided to space the unfolded areas of the at least one surface fold away from the wall of the filter bag receiving space.

1 . Vacuum-cleaning apparatus comprising a vacuum cleaner and a filter bag in which
 the filter bag is formed as a non-woven fabric filter bag, as a disposable filter bag and as a flat bag having a first filter bag wall and a second filter bag wall,   the filter bag has at least one surface fold, wherein each surface fold comprises areas that are positioned within the surface area of the filter bag wall, and areas that project over the surface area of the filter bag wall and can be unfolded during the vacuum-cleaning,   the vacuum cleaner comprises a filter bag receiving space with rigid walls, wherein on the walls of the filter bag receiving space   at least a first spacer device is provided to space the areas of at least one surface fold positioned within the surface area of the filter bag wall away from the wall of the filter bag receiving space, and   at least a second spacer device is provided to space the unfolded areas of the at least one surface fold away from the wall of the filter bag receiving space.   
     
     
         2 . The apparatus according to  claim 1 , wherein the height of the first or the second spacer devices with respect to the wall of the filter bag receiving space is in a range of 5 mm to 60 mm. 
     
     
         3 . The apparatus according to  claim 1 , wherein each first and each second spacer device is formed as a web, a web-shaped section, a bow, a bow-shaped section, a rib, a rib-shaped section or a lug and combinations thereof. 
     
     
         4 . The apparatus according to  claim 1 , wherein each first and each second spacer device is formed integrally with the wall of the filter bag receiving space. 
     
     
         5 . The apparatus according to  claim 1 , wherein all first and all second spacer devices comprise a cage-shaped insert provided in the filter bag receiving space. 
     
     
         6 . The apparatus according to  claim 5 , wherein the cage-shaped insert is removable from the filter bag receiving space and reinsertable into the filter bag receiving space. 
     
     
         7 . The apparatus according to  claim 1 , wherein the filter bag comprises a plurality of surface folds in the first layer of the filter bag wall or a plurality of surface folds in the second layer of the filter bag wall. 
     
     
         8 . The apparatus according to  claim 1 , wherein the height of the first or the second spacer devices with respect to the wall of the filter bag receiving space is in a range of 10 mm to 30 mm. 
     
     
         9 . The apparatus according to  claim 1 , wherein the height of the first and the second spacer devices with respect to the wall of the filter bag receiving space is in a range of 5 mm to 60 mm. 
     
     
         10 . The apparatus according to  claim 1 , wherein the height of the first and the second spacer devices with respect to the wall of the filter bag receiving space is in a range of 10 mm to 30 mm. 
     
     
         11 . The apparatus according to  claim 1 , wherein the filter bag comprises a plurality of surface folds in the first layer of the filter bag wall and a plurality of surface folds in the second layer of the filter bag wall. 
     
     
         12 . The apparatus according to dam  7 , wherein the filter bag comprises three to seven surface folds in the first layer of the filter bag wall. 
     
     
         13 . The apparatus according to dam  7 , wherein the filter bag comprises three to seven surface folds in the second layer of the filter bag wall. 
     
     
         14 . The apparatus according to  claim 7 , wherein the filter bag comprises three to seven surface folds in the first layer of the filter bag wall and three to seven surface folds in the second layer of the filter bag wall.