Self-propelled vacuum cleaner

Abstract

A self-propelled vacuum cleaner comprising: a self-propellable case having a suction opening provided on a bottom surface and an exhaust opening provided at a rear part; and a dust-collecting part provided between the suction opening and the exhaust opening through a ventilation channel, wherein the dust-collecting part includes a dust box disposed at the suction-opening side and an electric fan disposed at the exhaust-opening side, and the dust box and the electric fan are configured to be separable.

1 . A self-propelled vacuum cleaner comprising: a self-propellable case having a suction opening provided on a bottom surface and an exhaust opening provided at a rear part; and a dust-collecting part provided between the suction opening and the exhaust opening through a ventilation channel, wherein
 the dust-collecting part includes a dust box disposed at the suction-opening side and an electric fan disposed at the exhaust-opening side, and   the dust box and the electric fan are configured to be separable.   
     
     
         2 . The self-propelled vacuum cleaner according to  claim 1 , wherein
 the electric fan is disposed in the case, and the dust box is detachably mounted to the rear part of the case in the dust collecting part.   
     
     
         3 . The self-propelled vacuum cleaner according to  claim 2 , wherein
 the case includes a rear opening into which the dust box is fitted, an upstream ventilation channel that allows the suction opening and the rear opening to communicate with each other, a downstream ventilation channel that allows the exhaust opening and the rear opening to communicate with each other, a first packing provided around a first connection opening of the upstream ventilation channel at the rear-opening side, and a second packing provided around a second connection opening of the downstream ventilation channel at the rear-opening side,
 the electric fan is disposed in the downstream ventilation channel, and 
 the dust box includes an inflow opening connectable to the first connection opening through the first packing, a discharge opening connectable to the second connection opening through the second packing, a filter provided between the inflow opening and the discharge opening, and a dust collecting chamber provided between the inflow opening and the filter. 
   
     
     
         4 . The self-propelled vacuum cleaner according to  claim 3 , wherein
 the case has a tilt lower surface tilting downward toward a front side at the portion where the second packing is provided, and   the dust box has a tilt upper surface tilting downward toward a front side at the portion where the discharge opening is formed.   
     
     
         5 . The self-propelled vacuum cleaner according to  claim 3 , wherein
 the dust box has a dust fall prevention member provided at the inflow opening for preventing dust in the dust box from leaking and falling from the inflow opening.