Vacuum cleaner

Abstract

A downsized vacuum cleaner whose filter is less likely to be clogged. An electric motor 2 and a fan 3 are provided within a cleaner body 1 . A dust collecting section 16 is formed annular so as to surround the circumference of the fan 3 . A filter 12 for filtering dust is mounted at an inside peripheral face of the dust collecting section 16 and dust separated by the filter 12 is collected in the dust collecting section 16 . A flectional portion 35 is formed at an upper end of a suction tube 32 , facing the dust collecting section 16 so that an airflow flowing along a peripheral direction of the dust collecting section 16 is generated. This causes comparatively larger-sized dust to be pressed, by a centrifugal force, against an inside wall of an outer peripheral side of the dust collecting section 16 so that only small-sized dust is filtered by the filter 12 , preventing the filter 12 from being clogged.

What is claimed is:  
     
         1 . A vacuum cleaner, including a body, an electric motor provided in the body, a fan driven by the electric motor, a filter for filtering dust contained in air sucked by the fan, and a dust collecting section for collecting dust separated by the filter, wherein said dust collecting section is formed annular and is arranged in an outside periphery of said electric motor and fan.  
     
     
         2 . A vacuum cleaner according to  claim 1 , wherein said filter is provided on an inner peripheral side of said dust collecting section.  
     
     
         3 . A vacuum cleaner according to  claim 1 , wherein said filter is provided along an entire inner periphery of said dust collecting section.  
     
     
         4 . A vacuum cleaner according to  claim 2 , wherein said filter is provided along an entire inner periphery of said dust collecting section.  
     
     
         5 . A vacuum cleaner according to  claim 1 , further comprising a means for forming a vortex airflow for allowing an air to flow along a peripheral direction of said dust collecting section.  
     
     
         6 . A vacuum cleaner according to  claim 2 , further comprising a means for forming a vortex airflow for allowing an air to flow along a peripheral direction of said dust collecting section.  
     
     
         7 . A vacuum cleaner according to  claim 3 , further comprising a means for forming a vortex airflow for allowing an air to flow along a peripheral direction of said dust collecting section.