Abstract: A vacuum cleaner is provided. A vacuum cleaner includes a main body with a suction motor, a dust collecting unit, a main body frame, a locking member, a detaching button, and a pushing member. A suction port assembly is connected to the main body and an extension pipe assembly is detachably attached to the main body; each fluidly connects selectively with the dust collecting unit. The locking member selectively locks the extension pipe assembly to the main body frame, the detaching button selectively detaches the locking member from the extension pipe assembly, and the pushing member moves the extension pipe assembly according to the locking member being detached from the extension pipe assembly.

Abstract: A vacuum cleaner having a suction path switching unit is provided that includes a cleaner body having a body frame; a suction inlet body hinged to the body frame; an extension pipe assembly having a hose and an extension pipe connected in fluid communication with the hose; and a suction path switching unit disposed on the body frame. The suction path switching unit has a switching duct, at least a portion of which is elastically arranged on a suction path to be displaceable on the suction path. As the extension pipe is fixed on or separated from the body frame, the switching duct is selectively displaced to a first position of opening a first suction path flowing from the suction inlet body to the dust collecting unit or a second position of opening a second suction path flowing from the extension pipe to the dust collecting unit.

Abstract: An agitator includes an agitator body rotatably accommodated within a suction nozzle having a suction port, and comprising a plurality of bristles planted in an outer circumference, and an air moving device formed on the outer circumference of the agitator body to cause air to move in a space defined between the agitator body and an inner wall of the suction nozzle, if the agitator body is rotated.

Abstract: An upright vacuum cleaner having a suction path switching unit is provided that includes a cleaner body having and a body frame; a suction inlet body hinged to the body frame; a hose in fluid communication with the body frame and an extension pipe; and a suction path switching unit disposed on the body frame. The suction path has an operating duct elastically arranged on a suction path to be able to slide up and down. As the extension pipe is inserted into or withdrawn from a socket disposed on the body frame, the operating duct selectively diverts the suction path to a first suction path flowing from the suction inlet body to the dust collecting unit or a second suction path flowing from the extension pipe to the dust collecting unit.

Abstract: A path-conversion valve assembly for a vacuum cleaner comprises a valve member rotatably mounted in an air path formed in a cleaner of a vacuum cleaner which includes a socket for receiving a hose nozzle, and a resilient member mounted in the air path to resiliently press the rotating valve member in an opposite direction to the rotating direction of the valve member.

Abstract: An upright vacuum cleaner having a steering unit is provided. The upright vacuum cleaner includes a cleaner body having a suction motor and a dust separating and collecting unit, a suction port assembly rotatably connected to a lower portion of the cleaner body, a handle mounted to the cleaner body, and a steering unit to elastically support the cleaner body so that the center of gravity of the cleaner body shifts to the direction where the cleaner body is rotated, according to the rotation of the cleaner body to the left or right.

Abstract: A cyclone dust collector includes a cyclone body including a first cyclone chamber to centrifugally separate dust from drawn-in air for a first time, a plurality of second cyclone chambers to centrifugally separate dust from the drawn-in air for a second time, and a plurality of discharge ports to cause the drawn-in air to be discharged from the plurality of second cyclone chambers; an upper cover to cover an upper portion of the cyclone body, the upper cover having an inner wall facing the plurality of discharge ports; and a noise reduction part disposed between the plurality of discharge ports and the inner wall of the upper cover, to reduce noise generated inside the upper cover by the air discharged through the plurality of discharge ports. Therefore, it is possible to reduce noise generated inside the upper cover of the cyclone dust collector.

Abstract: A multi-cyclone dust separator is provided, including a first cyclone unit that centrifugally separates dust from dust-laden air drawn into the first cyclone unit through a first air inlet, and a second cyclone unit that is formed inside the first cyclone unit, wherein the second cyclone unit includes a second cyclone body that has a second air inlet through which the air, from which the dust is separated by the first cyclone unit, enters the second cyclone body, and a guide unit that enables the air entering the second cyclone unit to be rotated.

Abstract: The present disclosure relates to a suction brush for a vacuum cleaner, which is connected to a suction extension pipe connected to a main body of the vacuum cleaner and draws in foreign materials using a suction force generated in the main body. The suction brush includes a bottom housing with a dust entering port; a top housing connected to the bottom housing so as to cover the bottom housing; a connector disposed between the top housing and the bottom housing, the connector connected to the suction extension pipe; and a flow rate controller disposed at the connector, the flow rate controller controlling a volume of the air entering through the dust entering port so as to control a suction force.

Abstract: A vacuum cleaner is provided. A vacuum cleaner includes a main body with a suction motor, a dust collecting unit, a main body frame, a locking member, a detaching button, and a pushing member. A suction port assembly is connected to the main body and an extension pipe assembly is detachably attached to the main body; each fluidly connects selectively with the dust collecting unit. The locking member selectively locks the extension pipe assembly to the main body frame, the detaching button selectively detaches the locking member from the extension pipe assembly, and the pushing member moves the extension pipe assembly according to the locking member being detached from the extension pipe assembly.

Abstract: A brush apparatus capable of controlling a drive of a brush member with a simplified structure and a vacuum cleaner having the same. The vacuum cleaner includes a rotatable brush member, a driving unit to drive the brush member, and a blocking unit disposed between the brush member and the driving unit to selectively block a driving force transmitted between the brush member and the driving unit. The driving unit includes a suction motor to generate a suction force, and a single continuous connecting belt connecting the suction motor and the blocking unit.

Abstract: An apparatus for adjusting a height of a suction brush for use in a vacuum cleaner includes a height adjusting knob rotatably disposed in an inserting recess formed in the suction brush, and having an inclined part formed thereon, so that a height of the suction brush from a surface to be cleaned is varied as a position of the height adjusting knob rotated, a supporting member to support the suction brush in contact with the inclined part thus to allow the suction brush to be ascended and descended by the inclined part, and a passage disposed between an inner circumferential surface of the inserting recess and an outer circumferential surface of the height adjusting knob to pass fine dirt therethrough. With the passage, the fine dirt is not tied up between the inner circumferential surface of the inserting recess and the outer circumferential surface of the height adjusting knob. Accordingly, the rotation of the height adjusting knob is not restricted or obstructed due to the fine dirt.

Abstract: A power cord arranging device for a vacuum cleaner according to an exemplary embodiment of the present invention comprises first and second cord grips pivotably mounted and capable of being opened and closed about a hinge, and having at least two openings that receives a power cord when the cord grips are closed, and a resilient member biasing the first and second cord grips closed.

Abstract: A multi-cyclone dust separator is provided, including a first cyclone unit that centrifugally separates dust from dust-laden air drawn into the first cyclone unit through a first air inlet, and a second cyclone unit that is formed inside the first cyclone unit, wherein the second cyclone unit includes a second cyclone body that has a second air inlet through which the air, from which the dust is separated by the first cyclone unit, enters the second cyclone body, and a guide unit that enables the air entering the second cyclone unit to be rotated.

Abstract: A cyclone dust collector includes a cyclone body including a first cyclone chamber to centrifugally separate dust from drawn-in air for a first time, a plurality of second cyclone chambers to centrifugally separate dust from the drawn-in air for a second time, and a plurality of discharge ports to cause the drawn-in air to be discharged from the plurality of second cyclone chambers; an upper cover to cover an upper portion of the cyclone body, the upper cover having an inner wall facing the plurality of discharge ports; and a noise reduction part disposed between the plurality of discharge ports and the inner wall of the upper cover, to reduce noise generated inside the upper cover by the air discharged through the plurality of discharge ports. Therefore, it is possible to reduce noise generated inside the upper cover of the cyclone dust collector.

Abstract: An upright vacuum cleaner is disclosed, the upright vacuum cleaner including a cleaner body that houses a suction motor and a dust separating unit, and includes a manipulation handle at the top thereof, a suction port assembly that is connected to a lower portion of the cleaner body; and a steering unit that is disposed between the cleaner body and the suction port assembly, and elastically supports the cleaner body to shift the center of gravity of the cleaner body to the left or right, so that the direction of the cleaner body is changed.

Abstract: An agitator includes an agitator body rotatably accommodated within a suction nozzle having a suction port, and comprising a plurality of bristles planted in an outer circumference, and an air moving device formed on the outer circumference of the agitator body to cause air to move in a space defined between the agitator body and an inner wall of the suction nozzle, if the agitator body is rotated.

Abstract: A vacuum cleaner having a suction path switching unit is provided that includes a cleaner body having a body frame; a suction inlet body hinged to the body frame; an extension pipe assembly having a hose and an extension pipe connected in fluid communication with the hose; and a suction path switching unit disposed on the body frame. The suction path switching unit has a switching duct, at least a portion of which is elastically arranged on a suction path to be displaceable on the suction path. As the extension pipe is fixed on or separated from the body frame, the switching duct is selectively displaced to a first position of opening a first suction path flowing from the suction inlet body to the dust collecting unit or a second position of opening a second suction path flowing from the extension pipe to the dust collecting unit.

Abstract: An upright vacuum cleaner is provided that includes a cleaner body having a suction motor, a dust-collecting unit, and a body frame where the suction motor and the dust-collecting unit are disposed, a suction inlet body which is hinged to a lower end of the body frame, a hose which has one side fluidly communicating with the body frame and the other side fluidly communicating with an extension pipe through a manipulation handle, and a suction path diverting valve which is disposed on the body frame and has a valve member elastically arranged on a suction path. As the extension pipe is inserted into or withdrawn from a socket on the body frame, the valve member selectively diverts the suction path to a first suction path flowing from the suction inlet body to the dust-collecting unit or a second suction path flowing from the extension pipe to the dust-collecting unit.

Abstract: An upright vacuum cleaner having a steering unit is provided. The upright vacuum cleaner includes a cleaner body having a suction motor and a dust separating and collecting unit, a suction port assembly rotatably connected to a lower portion of the cleaner body, a handle mounted to the cleaner body, and a steering unit to elastically support the cleaner body so that the center of gravity of the cleaner body shifts to the direction where the cleaner body is rotated, according to the rotation of the cleaner body to the left or right.