Patent ID: 7320151

Claim:
An electric vacuum cleaner including a cleaner body incorporating an intake fan for generating suction for sucking dust and supported in a floating manner on a surface to be cleaned by exhaust air blown from the intake fan, comprising: a base plate connected to a lower face of the cleaner body so that the base plate is freely movable up and down with respect to the lower face of the cleaner body and having an outlet of the exhaust air formed in a surface thereof facing the surface to be cleaned; an extensible air duct, interposed between the base plate and the cleaner body, for guiding the exhaust air from the intake fan to the base plate; a dust suction nozzle supported on a part of the base plate and connected to a suction side of the intake fan; and wheels, mounted on the lower face of the cleaner body, for supporting the cleaner body on the surface to be cleaned when the base plate is moved up.