Abstract: A cleaning apparatus including a brush to sweep up dust on the floor via rotation thereof, and an elevating device to vertically adjust a height of the brush. The elevating device includes an elevating motor to generate rotation force, a cam configured to be rotated by the elevating motor and serving to vertically move the brush, and a rotation switch configured to rotate in a given direction along with the cam and serving to sense a position of the brush. The cleaning apparatus is structurally simplified as a resulting of using an Alternating Current (AC) motor as the elevating motor.

Abstract: An upright vacuum cleaner having a path switching apparatus are provided. The upright vacuum cleaner may include: a cleaner body, a hose which introduces air including dust into a dust collection unit, an extension pipe which is connected to the hose and is attached to/detached from the cleaner body, a suction port assembly connected to a bottom of the cleaner body, and a path switching apparatus installed in the cleaner body. The path switching apparatus includes an actuator, a rotary valve which pivotally rotates when the actuator operates, and a valve housing in which the rotary valve is built, wherein the rotary valve is curvedly formed so that the rotary valve forms a duct along with an inner circumferential surface of the valve housing to select a first path or a second path.

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 image forming apparatus including: a body housing; a paper feeding unit accommodated in the body housing and providing a recording medium; an image forming unit accommodated in the body housing and forming an image on the recording medium; a fixing unit accommodated in the body housing and fixing the image formed by the image forming unit; and a cooling unit including a channel including an inhalation part and a discharging part which are formed in the body housing for air to flow, extending between the inhalation part and the discharging part and formed adjacently to the fixing unit, and an air purification module installed in the channel and generating ions reacting to foreign substances in air traveling through the channel to purify the air, and discharging heat generated in the fixing unit to the outside.

Abstract: A structure for installing consumables of an image forming apparatus, the structure comprising: a frame; a plurality of consumables which comprises irregular installation preventing units in different locations; a plurality of irregular installation preventing keys which prevents an irregular installation of the plurality of consumables by an interaction with the irregular installation preventing units; and an installation guide member which is installed in the frame, comprising a key installation unit to guide the plurality of irregular installation preventing keys to be installed differently for each of the consumables and having the plurality of consumables installed therein.

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 image forming apparatus includes a body frame and an image reading unit mounted to the body frame. The image forming apparatus further includes a plurality of fixed supporting portions to which the image reading unit is mounted in a stationary manner, an unfixed supporting member mounted to the body frame in a vertically movable manner to support one side of the image reading unit in a vertically movable manner, and an elastic member to elastically support the unfixed supporting member. The image forming apparatus may prevent the flatness of the image reading unit from being deteriorated when the image reading unit is mounted to the body frame.

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 fan motor unit and a vacuum cleaner having the same are provided. The fan motor unit includes a motor assembly comprising an impeller and a motor, a first upper case configured to surround the motor assembly, the first upper case comprising an inlet tube in communication with an entry of the impeller, configured to a first lower case configured to surround a lower portion of the motor assembly, a damper and a pressure switch, each in communication with the inlet tube and, a warning member connected to the pressure switch, wherein when the pressure of the interior pressure of the motor assembly is below a predetermined value, external air is flowed through the damper and a warning is generated by the warning member and the pressure switch.

Abstract: A vacuum cleaner having a safety apparatus of an auxiliary brush assembly is provided. The vacuum cleaner includes a main body having an extension pipe mounting portion, a main brush assembly connected to the main body, an extension pipe attached and detached to the main body, and an auxiliary brush assembly connected to an end of the extension pipe. The auxiliary brush assembly may have a brush and a driving means for rotating the brush, wherein the rotation of the brush may be automatically stopped when the extension pipe is mounted in the extension pipe mounting portion.

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 hose and accessory holder for an upright vacuum cleaner comprises a tool fixing portion having accessory tools insertable thereinto, a hose fixing portion for attachably/detachably fixing a hose thereto, and a holder fastening portion for attachably/detachably fastening the holder to a vacuum cleaner body. The tool fixing portion further comprises fitting members respectively formed in the insertion directions of the accessory tools on inner circumferential surfaces of the tool fixing portion, and protruding inwardly from the tool fixing portion.

Abstract: A vacuum cleaner having a detachable cord reel unit is provided. The vacuum cleaner includes a main body, a brush assembly connected to the main body and, a cord reel unit attachable to and detachable from a discharging portion of the main body, the cord reel unit comprising a power cord and a cooling fan formed therein, wherein the cooling fan stops driving automatically when the cord reel unit is mounted in the main body, and the cooling fan starts driving automatically to cool the power cord when the cord reel unit is detached from the main body.

Abstract: A vacuum cleaner is provided that includes a main body, a dust-collecting unit mounted in the main body, a suction force generating unit mounted in the main body, a first filter unit disposed upstream from the suction force generating unit, and a second filter unit disposed downstream from the suction force generating unit, wherein the first filter unit and the second filter unit are disposed adjacent to each other, and are individually, detachably mounted in the main body.

Abstract: A vacuum cleaner having a dual locking structure is provided. The vacuum cleaner includes a brush assembly, a main body connected to the brush assembly, a dust bin arranged on the main body, a fastening unit to move the dust bin to a fastened or unfastened state, and a filter casing. The dust bin includes one or more first locking holes and the main body includes one or dust bin locking members to be engaged with the first locking holes so that the dust bin, in an unfastened state, is removably retained in the main body. The filter casing includes one or more filter casing locking portions and the main body includes one or more filter casing locking members to be engaged with the filter casing locking portions so that the filter casing in the unfastened state is removably retained in the main body.

Abstract: A nozzle assembly for a vacuum cleaner includes a case having an inlet through which a dirt is drawn in from a surface to be cleaned and an outlet, a drum brush that is rotatably mounted in an inner space of the case, and a rotation preventing member that is disposed between an inner wall of the case and the drum brush and prevents the dirt from being rotated along the drum brush.

Abstract: An apparatus for diverting a fluid flow path automatically diverts a fluid flow path in accordance with inclining of a main body, and includes two or more selectable fluid flow paths through which an external air stream is drawn, a fixed fluid flow path to be selectively connected to one of the selectable fluid flow paths, a path selecting unit to connect the fixed fluid flow path to one of the selectable fluid flow paths, and a driving member to provide a driving force for path selecting of the path selecting unit. If mounted in an external apparatus, the driving member causes the path selecting unit to move and connect to the fixed fluid flow path in accordance with inclining of the external apparatus.

Abstract: A dust separating apparatus is provided. The dust separating apparatus draws in an external air stream and separates dust particles from the drawn air stream. The dust separating apparatus may include a dust collecting space to store dust particles and a driving means to increase or decrease the dust collecting space. Accordingly, a user may adjust the capacity of the dust collecting space as desired.