An electric vacuum cleaning apparatus including an autonomous robotic vacuum cleaner that autonomously moves between surfaces to be cleaned and collects dust and a station fluidly connectable to the autonomous robotic vacuum cleaner. The autonomous robotic vacuum cleaner includes: a container body accumulating collected dust, the container body including: a bottom wall including a disposal port; and a disposal lid opening and closing the disposal port. The station unit includes: a dust transfer pipe connected to the disposal port; a secondary dust container accumulating dust; and a secondary electric blower that generates negative suction pressure in the dust transfer pipe via the secondary dust container. At least one irregularly shaped ventilation groove that causes air to flow below the dust within the container body by the negative pressure generated by the secondary electric blower is provided to the inner surface of the bottom wall of the container body.

A vacuum cleaner includes a cleaner body including a suction motor for generating suction force and a suction part communicating with the cleaner body to suck in air and dust. The cleaner body includes a main body, wheels for moving the main body, and a battery detachably provided at a back side of the main body to supply power to the main body.

A vacuum cleaner includes: a cleaner body including a battery chamber; a motor provided in the cleaner body to provide suction force; a battery detachably mounted in the battery chamber to provide electric power to the motor; a battery cover rotatably mounted in the cleaner body to open and close the battery chamber; and a charging stand on which the cleaner body is held and which includes an opening prevention rib located on a rotation path of the battery cover in a state in which the cleaner body is held on the opening prevention rib and preventing opening of the battery cover.

A cleaner includes a cleaner body including a main cleaning unit for generating suction force, a nozzle assembly rotatably connected to the cleaner body and including a suction port for sucking in air and dust, and an auxiliary cleaning unit connected to the nozzle assembly and including a cloth supporter to which a cloth is attached. The nozzle assembly includes a front wheel and a rear wheel spaced apart from the front wheel, and a shaft of the rear wheel is relatively movably connected to the nozzle assembly to change a contact area between the cloth and a floor.

A vacuum cleaner capable of ensuring communication between a suction port and a dust collecting unit even in a state that a body portion of a cleaning unit has pivoted along an up/down direction relative to a main casing. The body portion is provided on the main casing to be pivotable along the up/down direction. A sliding-contact surface portion is provided in the body portion and curved along a pivoting direction of the body portion. A curved surface portion is provided in the communicating section body and curved along the pivoting direction of the body portion to be brought into sliding contact with the sliding-contact surface portion by pivoting motion of the body portion. A communicating opening is opened in the curved surface portion to communicate with the dust collecting unit.

A dust collector is provided, which includes a housing, a filter screen, and a spiral air director. The housing is provided with an air inlet, an air inlet channel, an air outlet channel, an air outlet, and a dust collection chamber. The dust collection chamber is in communication with the air inlet and the air outlet through the air inlet channel and the air outlet channel, respectively. The filter screen is disposed in the air outlet channel. The spiral air director is disposed in the air outlet channel and located on at least one side of an air inlet side and an air outlet side of the filter screen. Air flow flowing through the air outlet channel is directed by the spiral air director to form a swirling air flow.

Apparatus and method for receiving and holding debris in a collection chamber of a vacuum cleaner. The collection chamber has an inlet opening through which debris-entrained air enters the collection chamber. When the vacuum cleaner is off, an internal valve prevents debris from leaving the collection chamber through the inlet opening. The internal valve is movable from a first sealed position, in which the internal valve covers the chamber inlet opening, to a second unsealed position in which the internal valve does not cover the chamber inlet opening.

A rotatable agitator is used in a surface clearing head of a surface cleaning apparatus. The agitator is coupled to the cleaning head at least partially within an agitator chamber and is rotated about a pivot axis. The agitator includes an elongated agitator body and a hair migration portion. The hair migration portion includes a continuous row of bristles and a sidewall. The continuous row of bristles and sidewall are at least partially revolved around and extend along at least a portion of the pivot axis from one of a collection area or a first end region of the agitator and either another collection area or a second end region of the agitator. The sidewall extends substantially parallel to the continuous row of bristles within the hair migration portion. The continuous row of bristles and sidewall are configured to reduce hair from becoming entangled in the bristles and to migrate hair towards the collection area or the first end region of the agitator.

Provided is a cleaner. The cleaner includes a housing provided with a dust container at a lower side thereof having a suction opening, a filter part configured to filter dust from air suctioned through the suction opening, the filter being spaced apart from an inner circumferential surface of the housing, an air guide configured to guide the air passing through the filter part in an inner region of the filter part to a suction motor configured to generate suction force, a movable part configured to be elevated between a first position and a second position in a space between the outside of the filter part and the inner circumferential surface of the housing, a manipulation part of which at least a portion is exposed to outside of the housing, the manipulation part being elevated by user's manipulation, and a transfer unit of which at least a portion is accommodated in the housing, the transfer unit being configured to connect the manipulation part to the movable part.

An upright vacuum cleaner with one or more features, such as a top opening rigid container, a headlight, a replaceable power cord a motor housing suspended within the vacuum to reduce noise and/or vibration a clutch assembly with a RPM sensor, and/or one or more filter plates to improve airflow.