Abstract: A turbine brush for a vacuum cleaner according to an embodiment of the present invention, comprises a turbine brush body connected to a cleaner body in which a suction force is generated and having a suction path therein, a brush member rotatably mounted to the turbine brush body, a driving unit rotatably mounted in the turbine brush body to drive the brush member, and an inertia member for adding inertia to a driving force of the driving unit. Accordingly, a rotative force is not deteriorated even by small particles such as fine dust and hair, owing to the inertia added to the turbine, thereby improving a cleaning efficiency.

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 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: Disclosed is a passage-conversion valve assembly for a vacuum cleaner, having a valve member having a socket for a hose nozzle and mounted in an air passage in a cleaner body, a resilient member mounted in the air passage to resiliently bias the valve member in one direction, and an actuator mounted to one sidewall of the air passage to push the valve member in an opposite direction to the resilience by the resilient member when the hose nozzle is mounted to the socket.

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: 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: 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: 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: 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: A hose lock apparatus for a vacuum clean that provides easy attachment and detachment of a hose to and from an air inlet of the vacuum cleaner body, is disclosed. The hose lock apparatus includes a hose clamp in a form of a hollow cylinder and engaged with an end of the hose therein. The hose clamp further includes a locking protrusion along an outer circumference. The hose lock apparatus includes an air inlet portion which is configured at the vacuum-cleaner body to receive an end of the hose clamp. The air inlet portion includes an insertion hole for guiding the locking protrusion towards an inserting direction, and a seating groove connected to the insertion hole to receive the locking protrusion when the hose clamp is rotated by a predetermined number of degrees. When the hose clamp is attached to the air inlet, a cleaning work with the hose is enabled.

Abstract: An accessory support for an upright type vacuum cleaner, the upright type vacuum cleaner comprising a cleaner body, a suction brush formed adjacent a lower part of the cleaner body, and a handle engaged with the cleaner body, the accessory support comprising: a hanger attached to a connecting part between the handle and the cleaner body; and a support bracket detachably attached to the hanger, and having a mounting part on which the accessory is removably mounted.

Abstract: A locking unit of a brush assembly for use with a vacuum cleaner has a release preventing member so that if the brush assembly accidentally falls, the release preventing member conveniently keeps upper and lower housings of the assembly assembled. The brush assembly includes the upper and lower housings. A connector is secured in one of the upper and lower housings and is adapted to direct air in the upper and lower housings towards a suction force generator of the vacuum cleaner. A locking unit rotates on the connector to open and sealingly close the upper and the lower housings. The release preventing member is formed between the connector and the locking unit to prevent release of the locking unit.

Abstract: A cyclone dust collector of a vacuum cleaner includes a lower cyclone body for initially separating dust entrained in air drawn in through an air suction port, an upper cyclone body for separating fine dust entrained in the air that has been initially filtered in the lower cyclone body, and a central air path for guiding the air which is filtered in the upper cyclone body along a center axis line, and discharging the air through an air discharge port in the lower cyclone body. The capability of the vacuum cleaner can be improved by circulating the drawn in air having the entrained dust in the lower and upper cyclone bodies, and separately and sequentially collecting the dust at least partially based on the particle size thereof.

Abstract: An upright-type vacuum cleaner having an improved, foldable handle structure to reduce the amount of storage space required when the cleaner is not in use. The upright vacuum cleaner is provided with a handle that is hinged at a pivot point to enable the handle to rotate relative to the cleaner body. A locking unit locks and releases the handle in at least one user-desired position.

Abstract: Disclosed is a locking unit to fix a removable cyclone dust collector in a receiving portion of a main body of a vacuum cleaner. The locking unit comprises a locking recess formed at one side of a contact surface of the cyclone dust collector and the receiving portion. A lock element ascends and descends between a locking position and an unlocking position with respect to the locking recess and passes through a hole which is formed at another side of the contact surface of the cyclone dust collector and the receiving portion. An operating member selectively moves the lock element to the locking position and the unlocking position.

Abstract: Disclosed is a height adjusting apparatus for a suction brush of an upright vacuum cleaner, by which a user can facilely adjust a gap between the suction brush and a cleaning surface. The apparatus comprises a suction brush body; a height adjusting knob rotatably disposed at a seating portion formed in the suction brush body, and having a cam curve portion formed at a part of an end of the height adjusting knob inserted into the suction brush body, the cam curve portion having a height difference between a starting point and an end point thereof and a plurality of recessed grooves formed between the starting point and the end point; a height adjusting shaft integrally formed with a rod member which is contacted with the cam curve portion and lifted up and down according to a rotational direction of the height adjusting knob; and a brush front wheel rotatably coupled to the height adjusting shaft.

Abstract: Disclosed is a soil collection receptacle attaching/detaching apparatus for a cyclone vacuum cleaner, which allows only a soil collection receptacle to be attached to or detached from a cyclone unit that includes a cyclone body as well as the soil collection receptacle, in which the cyclone unit is installed in an accommodation recess provided in a cleaner body, so that the soils in the soil collection receptacle can be conveniently dumped. Also disclosed is a cyclone vacuum cleaner provided with the soil collection receptacle attaching/detaching apparatus.

Abstract: A self-propelling apparatus for a vacuum cleaner in which a cleaner body is pivotably mounted to a brush assembly is provided. The self-propelling apparatus includes a sensor unit having a wheel part that pivots in the opposite direction to a moving direction of the vacuum cleaner, a connection part connected with the wheel part and fixed to the brush assembly by one end thereof and a switch part turned on and off according to the connection part, and generating progression and retrogression signals according to pivoting motion of the wheel part, and an interception unit generating an interception signal when the cleaner body is in an upright posture, and a driving unit moving the vacuum cleaner in accordance with the progression and retrogression signals.