Vacuum Cleaner

Abstract

The invention is directed to vacuum cleaner ( 1 ) comprising a horizontal type cleaner body ( 2 ) with a front ( 5 ) and back side ( 6 ) and two lateral sides ( 7 ), at least one primary stage cyclone dust separator ( 8 ) having a dust outlet opening fluidly connected to a primary stage dust collecting chamber ( 9 ), and at least one secondary stage cyclone dust separating unit ( 12 ). The primary stage dust collecting chamber ( 9 ) and the at least one secondary stage cyclone dust separating unit ( 12 ) is mounted at the front side ( 5 ) in a lateral side by side arrangement in between the lateral sides ( 7 ).

1 . A vacuum cleaner, comprising:
 a horizontal type cleaner body having a top side, a bottom side, a front side, a back side, and two lateral sides,   at least one primary stage cyclone dust separator having a dust outlet opening fluidly connected to a primary stage dust collecting chamber, and   at least one secondary stage cyclone dust separating unit, wherein the primary stage dust collecting chamber and the at least one secondary stage cyclone dust separating unit are mounted at the front side in a lateral side by side arrangement in between the lateral sides.   
     
     
         2 . A vacuum cleaner according to  claim 1 , comprising two secondary stage cyclone dust separating units mounted at opposite lateral sides and side by side with the primary stage dust collecting chamber which is centered between the two secondary stage cyclone dust separating units and the lateral sides. 
     
     
         3 . A vacuum cleaner according to  claim 1 , wherein each of the at least one secondary stage cyclone dust separating unit comprises a plurality of conical cyclones arranged side to side in parallel to a respective lateral side. 
     
     
         4 . A vacuum cleaner according  claim 3 , wherein the conical cyclones of the at least one secondary stage cyclone dust separating unit are mounted and adapted such that a center axis of each of the conical cyclones is generally tilted from the top side and the front side toward the bottom side and the back side. 
     
     
         5 . A vacuum cleaner according to  claim 4 , wherein the center axes of the conical cyclones of the at least one secondary stage cyclone dust separating unit are tilted by an angle (α) relative to a center axis of the cleaner body, wherein the angle (α) is in a range of 10 to 50 degrees. 
     
     
         6 . A vacuum cleaner according to  claim 4 , wherein each of the at least one secondary stage cyclone dust separating unit comprises a secondary stage dust collecting chamber, wherein each of the conical cyclones in the plurality of conical cyclones has a dust outlet opening, and wherein the secondary stage dust collecting chamber is downstream of and fluidly connected to the dust outlet openings of the secondary stage conical cyclones. 
     
     
         7 . A vacuum cleaner according to  claim 6 , wherein with regard to the front side to back side direction, each of the at least one secondary stage dust collecting chamber is positioned and mounted behind and flush with a respective one of the plurality of secondary stage conical cyclones. 
     
     
         8 . A vacuum cleaner according to  claim 6 , wherein each of the at least one secondary stage dust collecting chamber has a triangular shaped cross section in a plane parallel to one of the lateral sides. 
     
     
         9 . A vacuum cleaner according to  claim 6 , further comprising a tertiary stage dust separator which is, in the front side to back side direction, mounted behind the primary stage dust collecting chamber and laterally adjacent to the at least one secondary stage dust collecting chamber. 
     
     
         10 . A vacuum cleaner according to  claim 1 , further comprising air channels connecting an air outlet of the at least one primary stage cyclone dust separator to the at least one secondary stage cyclone dust separating unit, wherein the air channels are guided at the top side of the cleaner body. 
     
     
         11 . Vacuum cleaner according to  claim 1 , wherein the at least one primary stage cyclone dust separator is, in the front side to back side direction, mounted behind the at least one primary stage dust collecting chamber. 
     
     
         12 . A vacuum cleaner according to  claim 5 , wherein the angle (α) is 30 degrees. 
     
     
         13 . A vacuum cleaner according to  claim 11 , wherein the at least one primary stage cyclone dust separator is a horizontal type dust separator.