Abstract: There is provided a robot cleaner having an improved dust-collecting capability and an improved suction force and capable of being manufactured in a small size. The robot cleaner includes a main body comprising a fan motor and having a suction port provided in one side thereof; a plurality of cyclone units configured to separate foreign substances in air suctioned through the suction port; and a plurality of suction flow paths connecting the plurality of cyclone units and the suction port.

Abstract: A vacuum cleaner includes an actuator connected to a suction hose to rotate in left and right directions centering on a first rotation axis, or in forward and backward directions centering on a second rotation axis according to movement of the suction hose, a first displacement sensor detecting rotational displacement of the actuator in the left and right directions, and a second displacement sensor detecting rotational displacement of the actuator in the forward and backward directions, and controls activation of a plurality of driving motors according to the rotational displacement of the actuator in the left and right directions and in the forward and backward directions, which are detected by the first displacement sensor and the second displacement sensor, thereby advancing or rotating the main body in the left and right directions.

Abstract: There is provided a robot cleaner having an improved dust-collecting capability and an improved suction force and capable of being manufactured in a small size. The robot cleaner includes a main body comprising a fan motor and having a suction port provided in one side thereof; a plurality of cyclone units configured to separate foreign substances in air suctioned through the suction port; and a plurality of suction flow paths connecting the plurality of cyclone units and the suction port.

Abstract: There is provided a robot cleaner having an improved dust-collecting capability and an improved suction force and capable of being manufactured in a small size. The robot cleaner includes a main body comprising a fan motor and having a suction port provided in one side thereof; a plurality of cyclone units configured to separate foreign substances in air suctioned through the suction port; and a plurality of suction flow paths connecting the plurality of cyclone units and the suction port.

Abstract: There is provided a robot cleaner having an improved dust-collecting capability and an improved suction force and capable of being manufactured in a small size. The robot cleaner includes a main body comprising a fan motor and having a suction port provided in one side thereof; a plurality of cyclone units configured to separate foreign substances in air suctioned through the suction port; and a plurality of suction flow paths connecting the plurality of cyclone units and the suction port.

Abstract: A vacuum cleaner includes an actuator connected to a suction hose to rotate in left and right directions centering on a first rotation axis, or in forward and backward directions centering on a second rotation axis according to movement of the suction hose, a first displacement sensor detecting rotational displacement of the actuator in the left and right directions, and a second displacement sensor detecting rotational displacement of the actuator in the forward and backward directions, and controls activation of a plurality of driving motors according to the rotational displacement of the actuator in the left and right directions and in the forward and backward directions, which are detected by the first displacement sensor and the second displacement sensor, thereby advancing or rotating the main body in the left and right directions.

Abstract: A vacuum cleaner provided with a dust separating apparatus which has an improved aesthetic quality and has an increased size without increasing the height of the vacuum cleaner. The dust-separating apparatus is easily detachable with respect to a vacuum cleaner body, and is provided with a cover that is easily detachable when dirt collected in the dust collecting compartment is discarded. The vacuum cleaner includes a first cyclone part and a second cyclone part, and a first dust collecting compartment configured to collect dirt separated from the first cyclone part is formed at a lower side of the first cyclone part and the second cyclone part.

Abstract: A vacuum cleaner having a dust removing apparatus includes a main body in which a dust collecting unit is disposed, a filter disposed inside the dust collecting unit, the dust removing apparatus to dust off the filter, a rotating handle that allows the dust removing apparatus to be rotated, the rotating handle disposed in an outer surface of the dust collecting unit, and a body cover in which a rotating-handle exposing hole is formed for the rotating handle to be exposed outside in a state that the dust collecting unit is disposed in the main body, the body cover rotatably disposed at the main body. The vacuum cleaner can remove dust from filter regardless whether the dust collecting unit is disposed in or separated from the main body. The vacuum cleaner also can remove dust from the filter while the vacuum cleaner operates.

Abstract: Disclosed is a dust-collecting apparatus with a packing member. The disclosed dust-collecting apparatus for separating dust from introduced air comprises: a dust-collecting receptacle with an open bottom; a dust discharge cover arranged at the bottom of the dust-collecting receptacle such that that the dust discharge cover can be opened/closed; and a packing member for sealing the dust-collecting receptacle and the dust discharge cover, wherein the packing member presses the dust discharge cover in the direction of opening the dust discharge cover. Thus, the dust discharge cover can be opened from the bottom of the dust-collecting receptacle in an easier manner.

Abstract: A vacuum cleaner provided with a dust separating apparatus which has an improved aesthetic quality and has an increased size without increasing the height of the vacuum cleaner. The dust-separating apparatus is easily detachable with respect to a vacuum cleaner body, and is provided with a cover that is easily detachable when dirt collected in the dust collecting compartment is discarded. The vacuum cleaner includes a first cyclone part and a second cyclone part, and a first dust collecting compartment configured to collect dirt separated from the first cyclone part is formed at a lower side of the first cyclone part and the second cyclone part.

Abstract: A vacuum cleaner provided with a dust separating apparatus which has an improved aesthetic quality and has an increased size without increasing the height of the vacuum cleaner. The dust-separating apparatus is easily detachable with respect to a vacuum cleaner body, and is provided with a cover that is easily detachable when dirt collected in the dust collecting compartment is discarded. The vacuum cleaner includes a first cyclone part and a second cyclone part, and a first dust collecting compartment configured to collect dirt separated from the first cyclone part is formed at a lower side of the first cyclone part and the second cyclone part.

Abstract: A vacuum cleaner having a dust removing apparatus includes a main body in which a dust collecting unit is disposed, a filter disposed inside the dust collecting unit, the dust removing apparatus to dust off the filter, a rotating handle that allows the dust removing apparatus to be rotated, the rotating handle disposed in an outer surface of the dust collecting unit, and a body cover in which a rotating-handle exposing hole is formed for the rotating handle to be exposed outside in a state that the dust collecting unit is disposed in the main body, the body cover rotatably disposed at the main body. The vacuum cleaner can remove dust from filter regardless whether the dust collecting unit is disposed in or separated from the main body. The vacuum cleaner also can remove dust from the filter while the vacuum cleaner operates.

Abstract: Disclosed is a dust-collecting apparatus with a packing member. The disclosed dust-collecting apparatus for separating dust from introduced air comprises: a dust-collecting receptacle with an open bottom; a dust discharge cover arranged at the bottom of the dust-collecting receptacle such that that the dust discharge cover can be opened/closed; and a packing member for sealing the dust-collecting receptacle and the dust discharge cover, wherein the packing member presses the dust discharge cover in the direction of opening the dust discharge cover. Thus, the dust discharge cover can be opened from the bottom of the dust-collecting receptacle in an easier manner.

Abstract: A dust collecting apparatus for use in a vacuum cleaner provides improved suction cleaning efficiency. The dust collecting apparatus includes a main body comprising a suction port through which a dust-laden air is drawn, and a first and a second discharge ports through which filtered air is discharged. A filter unit disposed between the suction port and the first discharge port, filters out dusts from the air. A parallel cyclone unit, disposed between the suction port and the second discharge port, removes dusts from the air by centrifugal force. The first discharge port is larger in sectional area than the second discharge port, and therefore, the filter unit has higher dust removal rate than the cyclone unit in the initial stage of the operation. Accordingly, the dust collecting apparatus can provide greater initial suction cleaning efficiency than a dust collecting apparatus having only the cyclone unit.

Abstract: A suction port assembly of a vacuum cleaner is connected with a cleaner body by an extended flow passage and draws in air and dust from a surface being cleaned when the cleaner is in operation. The suction port assembly includes a suction head having a suction hole formed at a bottom surface opposite to the surface being cleaned. A first connection member extends from one side of the suction head. A second connection member rotatably connects at one end to an exit end of the first connection member and rotates about a first axis to move upwardly and downwardly with respect to the suction head, and at the other end is connected with the extended flow passage. A third connection member engages the second connection member with one end rotatable about a second axis substantially perpendicular to the first axis, and the other end disengageably connected to the extended flow passage.

Abstract: A power cord that includes a plug body supporting an electric wire and including a connecting part, a protecting tube coupled to the plug body, and a movement regulating protrusion formed on the electric wire preventing the protecting tube from separating from the connecting part, wherein a space is formed between an inner surface of the protecting tube and the electric wire.

Abstract: A power cord that includes a plug body supporting an electric wire and including a connecting part, a protecting tube coupled to the plug body, and a movement regulating protrusion formed on the electric wire preventing the protecting tube from separating from the connecting part, wherein a space is formed between an inner surface of the protecting tube and the electric wire.

Abstract: An articulative extension pipe for a vacuum cleaner has a first extension pipe having a joint, a second extension pipe having a joint receiving part in which a joint of the first extension pipe is inserted, a sealing cover enclosing the first and the second extension pipes, and a locking button disposed between the sealing cover and the first extension pipe, and having at least one coupling protrusion on the outer circumference. One of the sealing cover, and the first and the second extension pipes has at least one coupling recess in which the coupling protrusion of the locking button is selectively inserted so that the first extension pipe can rotate with respect to the second extension pipe. The sealing cover further includes a wheel, which rolls in contact with the surface being cleaned, and a cotton flannel is disposed on the outer circumference of the wheel.

Abstract: A suction port assembly for a vacuum cleaner and a vacuum cleaner having such a suction port comprises upper and lower housings, a plurality of suction ports formed in the lower housing, and a plurality of suction paths formed in the upper and lower housings to guide the air drawn in through the suction ports. With this arrangement, the efficiency of cleaning the lateral sides of the suction port assembly can be enhanced, and thus a wide area can be efficiently cleaned.

Abstract: A vacuum cleaner suction port assembly has an upper and a lower housings, a first and a second suction ports formed on the lower housing, at least one upper opening pierced in the upper housing, allowing an external air to be drawn therethrough by the suction force of the first and the second suction ports, and at least one lower opening formed on the lower housing, the lower opening located between the first and the second suction ports and fluidly communicating with the upper opening such that the air drawn through the upper opening is guided to between the first and the second suction ports to scatter the dusts therefrom. Accordingly, cleaning efficiency increases not only at both sides, but also at the center of the suction port assembly.