Rotary cleaning body unit, suction port body and electric vacuum cleaner

Abstract

In the embodiment of the present invention, a rotary cleaning body unit which is provided with a rotary cleaning body using a turbine as a driving motor and can drive the rotary cleaning body with a high torque without lowering suction power of an electric vacuum cleaner, a suction port body, and an electric vacuum cleaner are proposed. The rotary cleaning body unit comprising: a turbine 41 ; a planetary gear mechanism 43 having a drive shaft connected to the turbine 41 ; and a rotary cleaning body 44 connected to a driven shaft of the planetary gear mechanism 43.

1 . A rotary cleaning body unit comprising:
 a turbine;   a planetary gear mechanism having a drive shaft connected to the turbine; and   a rotary cleaning body connected to a driven shaft of the planetary gear mechanism.   
     
     
         2 . The rotary cleaning body unit according to  claim 1 , wherein
 a rotating shaft of the turbine, the drive shaft and the driven shaft of the planetary gear mechanism, and a rotating axis of the rotary cleaning body are arranged on a substantially same axis.   
     
     
         3 . The rotary cleaning body unit according to  claim 1 , wherein
 the planetary gear mechanism further includes:
 a sun gear connected to the turbine; 
 a planetary gear meshed with the sun gear and revolving around the sun gear; 
 an outer gear meshed with the planetary gear; and 
 a planetary carrier driven with revolution of the planetary gear and connected to the rotary cleaning body. 
   
     
     
         4 . The rotary cleaning body unit according to  claim 1 , wherein
 the turbine and the planetary gear mechanism are provided in a pair on both ends of the rotary cleaning body.   
     
     
         5 . The rotary cleaning body unit according to  claim 1 , wherein
 the turbine includes:
 a rotor blade portion having a plurality of rotor blades; and 
 a guide blade portion having a plurality of guide blades for leading air to the rotor blade portion. 
   
     
     
         6 . The rotary cleaning body unit according to  claim 5 , further comprising:
 a bearing portion provided on the guide blade portion; and   a guide blade portion support shaft fixed on a rotating axis of the rotor blade portion and pivotally supported by the bearing portion.   
     
     
         7 . A suction port body comprising:
 a suction port main body having an air inlet, a dust suction port formed in a bottom wall, and a suction chamber in which the air inlet and the dust suction port are made to communicate with each other;   a connection pipe tiltable on the suction port body and made to communicate with the suction chamber; and   a rotary cleaning body unit accommodated in the suction chamber, according to  claim 1 , wherein   the rotary cleaning body is arranged in the dust suction port and the turbine is arranged in a passage leading from the air inlet to the connection pipe.   
     
     
         8 . The suction port body according to  claim 7 , wherein
 the outer gear of the planetary gear mechanism is fixed to the suction port main body.   
     
     
         9 . The suction port body according to  claim 7 , wherein
 the air inlet is arranged on right and left side walls with respect to an advancing direction of the suction port main body.   
     
     
         10 . The suction port body according to  claim 7 , wherein
 the air inlet is arranged on a top wall of the suction port main body.   
     
     
         11 . The suction port body according to  claim 7 , wherein
 the suction port main body has a second air inlet which is faced with the rotary cleaning body and blows air so as to assist rotation of the rotary cleaning body.   
     
     
         12 . An electric vacuum cleaner comprising:
 a cleaner main body;   an electric blower accommodated in the cleaner main body; and   the suction port body made to communicate with the electric blower, according to  claim 7 .