To provide an electric vacuum cleaner capable of changing a direction of a suction port portion to a desired changing direction, to solve the problem that it is possible to reduce the effort upon operating a suction port portion forward or backward, since the suction port portion propels itself during cleaning in an electric vacuum cleaner equipped with a driving motor in the suction port portion, but it takes an effort to change the direction of the suction port portion in the right and left direction.
A rotary brush unit 2 inside the suction port portion 1 of the electric vacuum cleaner includes two right and left rotary shaft bodies 2A and 2B, and the rotation speeds of the respective rotary shaft bodies 2A and 2B can be changed, respectively. With such a configuration, since it is possible to change a self-propelling direction of the suction port portion to the right and left direction in addition to the forward direction, it is possible to remarkably reduce the effort involved in an operation of changing the direction of the suction port portion.
| WO/2008/117945 | VACUUM CLEANER |
| WO/2018/135502 | HOUSEHOLD ELECTRIC APPLIANCE AND HOUSEHOLD ELECTRIC APPLIANCE CONTROL SYSTEM |
| JP2013132510 | VACUUM CLEANER |
YOSHIKAWA TATSUO
Hiroki Naito
Daisuke Nagano