JPS5463555A - Vacuum cleaner - Google Patents

Abstract

PURPOSE: To provide a vacuum cleaner which enhance its safety by constructing an actuator driven by a prime mover contained in a body thereof for separating dusts from floor surface to move and stop when the body is floated from the floor surface.

CONSTITUTION: When the wheels 26, 26 of a vacuum cleaner body 1 make contact with floor surface, a rotary brush 10 also makes contact with the floor surface to cause a rotor 19 to upwardly push the actuator 21 of a limit switch 20 so as to thus close the switch 20. Thus, it closes a transformer relay 22, which thereby closes openable contacts 23 so as to thus drive a motor driven blower 2 and to also rotate the brush 10 through a belt 15 in order to thereby float the dusts from the floor surface. The dusts thus floated are intaken from a suction port 7 to be thus cleaned. When the body 1 is floated from the floor surface at cleaning time, a rotary shaft 16 lowers a hole for bearing the shaft by the self-weight of the brush 10 to thus cause the rotor 19 to release the depression of the actuator 21 of the switch 20 to thereby open the switch 20. Accordingly, the power circuit of the blower 2 is opened so as to stop the blower 2 and simultaneously the brush 10 as the actuator for safety.

COPYRIGHT: (C)1979,JPO&Japio