Abstract: An autonomous cleaner includes a body having a first housing formed at a front and a second housing formed at a rear of the first housing; a brush unit installed at the first housing and configured to sweep and collect dust from a floor; a dust collecting unit installed at the second housing and configured to store the dust inlet into the brush unit; a driving unit to drive the body and coupled to the second housing to be positioned at a lateral side of the dust collecting unit; and a power unit installed at the second housing and coupled to be positioned at a rear of the dust collecting unit. The miniaturization of the autonomous cleaner may be provided while at the same time the capacity of a dust collecting container and the capacity of a battery are increased.

Abstract: A vacuum cleaner includes a head unit that suctions foreign substances from a surface to be cleaned together with air. The head unit includes a first suction guide having a first suction chamber therein and a second suction guide disposed on a rear side of the first suction guide and having a second suction chamber therein, and the first suction chamber suctions air through a first degree of vacuum and the second suction chamber suctions air through a second degree of vacuum higher than the first degree of vacuum.

Abstract: The present disclosure relates to a cleaner including a main body, a brush head connected to the main body by a connection pipe and having a suction port, and a brush drum rotatably mounted to the brush head, wherein the brush drum includes a shaft unit rotatably mounted to the brush head, a cylindrical elastic member provided to surround an outer circumferential surface of the shaft unit, a brush provided in a cylindrical shape to surround an outer circumferential surface of the elastic member and formed of soft bristles, a pair of brackets assembled at both ends of the shaft unit and allowing the shaft unit to be rotatably mounted to the brush head, a handle unit detachably mounted on the brush head and detachably mounted to one of the pair of brackets.

Abstract: Disclosed is a vacuum cleaner having an improved structure for preventing hair or foreign substances from being caught in a wheel. The vacuum cleaner includes a suction nozzle having a suction passage for cleaning a surface to be cleaned by a suction force and a wheel assembly accommodated in the suction nozzle and configured to be rotatable. The wheel assembly includes a wheel and a rotating shaft to rotatably support the wheel. The rotating shaft is inclined relative to a bottom surface of the suction nozzle.

Abstract: A vacuum cleaner includes a head unit that suctions foreign substances from a surface to be cleaned together with air. The head unit includes a first suction guide having a first suction chamber therein and a second suction guide disposed on a rear side of the first suction guide and having a second suction chamber therein, and the first suction chamber suctions air through a first degree of vacuum and the second suction chamber suctions air through a second degree of vacuum higher than the first degree of vacuum.

Abstract: An autonomous cleaner includes a body having a first housing formed at a front and a second housing formed at a rear of the first housing; a brush unit installed at the first housing and configured to sweep and collect dust from a floor; a dust collecting unit installed at the second housing and configured to store the dust inlet into the brush unit; a driving unit to drive the body and coupled to the second housing to be positioned at a lateral side of the dust collecting unit; and a power unit installed at the second housing and coupled to be positioned at a rear of the dust collecting unit. The miniaturization of the autonomous cleaner may be provided while at the same time the capacity of a dust collecting container and the capacity of a battery are increased.

Abstract: An autonomous cleaner includes a body having a first housing formed at a front and a second housing formed at a rear of the first housing; a brush unit installed at the first housing and configured to sweep and collect dust from a floor; a dust collecting unit installed at the second housing and configured to store the dust inlet into the brush unit; a driving unit to drive the body and coupled to the second housing to be positioned at a lateral side of the dust collecting unit; and a power unit installed at the second housing and coupled to be positioned at a rear of the dust collecting unit. The miniaturization of the autonomous cleaner may be provided while at the same time the capacity of a dust collecting container and the capacity of a battery are increased.

Abstract: Disclosed is a vacuum cleaner having an improved structure for preventing hair or foreign substances from being caught in a wheel. The vacuum cleaner includes a suction nozzle having a suction passage for cleaning a surface to be cleaned by a suction force and a wheel assembly accommodated in the suction nozzle and configured to be rotatable. The wheel assembly includes a wheel and a rotating shaft to rotatably support the wheel. The rotating shaft is inclined relative to a bottom surface of the suction nozzle.

Abstract: A suction nozzle and a vacuum cleaner are provided. The suction nozzle includes a lower case in which a suction inlet configured to suck dirt on a surface to be cleaned using suction force formed from a suction source and an inclined part including the suction inlet are formed in a bottom of the lower case which faces the surface to be cleaned, and an upper case coupled to an upper side of the lower case, wherein the inclined part is formed to be downwardly inclined towards a left side and a right side of the suction inlet from an arbitrary portion of the inclined part.

Abstract: A robot cleaner drives various brushes using a single motor. The robot cleaner includes a main body having a suction port, a main brush rotatably disposed in the suction port, an auxiliary brush rotatably disposed adjacent to the main brush and at least one side brush rotatably installed to move dust to the suction port, wherein the main brush, the auxiliary brush, and the at least one side brush are driven by a single motor in an interlocking fashion.

Abstract: A suction nozzle and a vacuum cleaner are provided. The suction nozzle includes a lower case in which a suction inlet configured to suck dirt on a surface to be cleaned using suction force formed from a suction source and an inclined part including the suction inlet are formed in a bottom of the lower case which faces the surface to be cleaned, and an upper case coupled to an upper side of the lower case, wherein the inclined part is formed to be downwardly inclined towards a left side and a right side of the suction inlet from an arbitrary portion of the inclined part.

Abstract: A robot cleaner drives various brushes using a single motor. The robot cleaner includes a main body having a suction port, a main brush rotatably disposed in the suction port, an auxiliary brush rotatably disposed adjacent to the main brush and at least one side brush rotatably installed to move dust to the suction port, wherein the main brush, the auxiliary brush, and the at least one side brush are driven by a single motor in an interlocking fashion.

Abstract: An improved cleaning robot that uses a simple structure to sense an obstacle is provided. The cleaning robot includes a robot main body comprising a driving unit to drive the cleaning robot, and a cleaning unit to remove dust, a bumper unit which is movably mounted in the robot main body to protect the robot main body from collision with an obstacle, a sensor unit which supports the bumper unit movably in a plurality of directions to sense the collision of the bumper unit and the obstacle, and a control unit which controls the driving unit on the basis of a signal sensed by the sensor to avoid the obstacle.

Abstract: A wheel driving apparatus for a moving apparatus is provided. The wheel driving apparatus includes a wheel, a driving motor to generate a driving power to rotate the wheel, a gear box to transmit the rotational force of the driving motor to the wheel, and a guide shaft movable vertically with respect to the base member, wherein the wheel, the driving motor, the gear box, and the guide shaft are connected integrally with each other to move vertically with respect to the base member in unison.

Abstract: A robot cleaner system is disclosed. The robot cleaner system includes a robot cleaner to carry out a cleaning operation while automatically traveling around along a surface to be cleaned, and a charging station connectable with the robot cleaner to charge a charging battery mounted in the robot cleaner with electricity. The charging station includes a setting switch to selectively set up a value of threshold height.

Abstract: A control method for a robot cleaner that includes: driving a driving part to move the robot cleaner by a predetermined distance in an opposite direction to a proceeding direction thereof when a bumper sensor detects a collision with an obstacle, measuring the number of times in which the robot cleaner repeats moving in real-time, comparing the measured number with a predetermined reference number, and stopping the robot cleaner when the measured number is more than the reference number. With this method, the robot cleaner can diagnose a breakdown of the bumper sensor to stop the cleaner, and inform a user of the breakdown.

Abstract: Disclosed are a dust receptacle fixing/separating apparatus that fixes and separates a dust receptacle with respect to a cyclone unit, and a cyclone dust collecting device having the same. The dust receptacle fixing/separating apparatus comprises a fixing/separating handle, a locking/unlocking part, and a fixing part. The fixing/separating handle pivots between a first position and a second position, the first position in which the cyclone unit and the dust receptacle are fixed to each other and the second position in which the cyclone unit and the dust receptacle can be separated from each other. The locking/unlocking part fixes and releases the fixing/separating handle when the fixing/separating handle is in the first position. The fixing part pivotably mounting the fixing/separating handle releases connection between the cyclone unit and the dust receptacle when the fixing/separating handle is in the second position.

Abstract: Disclosed is a multi-cyclone dust separating apparatus including a primary cyclone for centrifugally separating impurities from the sucked air, a plurality of secondary cyclones for centrifugally separating impurities from the air supplied from the primary cyclone, inflow guide paths for guiding the air discharged from the primary cyclone to the plurality of secondary cyclones, and discharge guide tubes partially inserted into the secondary cyclones, for externally discharging the air of the secondary cyclones. The discharge guide tubes include cylindrical portions having a predetermined height, and intercepting portions extended from the bottom ends of the cylindrical portions by a predetermined length, for preventing the air supplied to the secondary cyclones from being directly discharged to the discharge guide tubes.

Abstract: A wheel driving apparatus for a moving apparatus is provided. The wheel driving apparatus includes a wheel, a driving motor to generate a driving power to rotate the wheel, a gear box to transmit the rotational force of the driving motor to the wheel, and a guide shaft movable vertically with respect to the base member, wherein the wheel, the driving motor, the gear box, and the guide shaft are connected integrally with each other to move vertically with respect to the base member in unison.

Abstract: A steam-vacuum cleaner with an electric power controlling function and a method thereof are provided. The steam-vacuum cleaner includes a suction motor which rotates to generate a suction force; a heater which emits heat to generate a steam; a power supply part which supplies an electric power to the suction motor and the heater; an electric power measuring part which measure a total electric power supplied from the power supplier and consumed in the suction motor and the heater; and a controller which controls at least one of a rotational velocity of the suction motor and a magnitude of heat emitted from the heater such that the total electric power of the suction motor and the heater is maintained less than a threshold value. Accordingly, steam and vacuum cleaning functions are simultaneously performed within the limit of power capacity of a wire.