A robotic vacuum cleaner for autonomously cleaning surfaces. The robotic vacuum cleaner comprises an appliance housing and a side arm. The side arm is movably mounted on the appliance housing. A brush element is disposed on the side arm. The side arm projects, in a first position, in front of the appliance housing in part and, in a second position, is received by the appliance housing. The side arm comprising a first arm element having a first end and a second end. The first arm element is movably mounted in the appliance housing at the first end. The side arm comprises a second arm element having a first end and a second end. The second arm element is movably mounted in the appliance housing at the first end and is movably connected to the second end of the first arm element at the second end.

A robot cleaner comprising: a cleaner body; a suction unit sucking air containing dust to be introduced into the cleaner body; and a dust container detachably coupled to the cleaner body, the dust container collecting dust filtered from the air introduced into the cleaner body, wherein the dust container includes: an external case including at least one cyclone filtering dust in air introduced into the dust container; an upper case coupled to an upper portion of the external case, the upper case including an upper opening corresponding to a space into which air passing through the cyclone is discharged; an upper cover detachably coupled to the upper case to open/close the upper opening; and a filter mounted on a rear surface of the upper cover, the filter covering the discharged space of the air passing through the cyclone when the upper cover is coupled to the upper case, to filter dust in the air passing through the cyclone.

A mobile robot of the present disclosure includes a first pattern emission unit configured to emit a first patterned light downward and forward from the main body on a floor of an area to be cleaned; and an image acquisition unit configured to acquire an image of first patterned light emitted by the first pattern emission unit and incident on an obstacle. A pattern is detected from the acquired image to determine an obstacle, and a cliff is detected based on at least one of a shape or a position of the pattern in the image. The mobile robot may identify a travel path that does not lead to the cliff.

A surface treatment robot includes a chassis having forward and rear ends and a drive system carried by the chassis. The drive system includes right and left driven wheels and is configured to maneuver the robot over a cleaning surface. The robot includes a vacuum assembly, a collection volume, a supply volume, an applicator, and a wetting element, each carried by the chassis. The wetting element engages the cleaning surface to distribute a cleaning liquid applied to the surface by the applicator. The wetting element distributes the cleaning liquid along at least a portion of the cleaning surface when the robot is driven in a forward direction. The wetting element is arranged substantially forward of a transverse axis defined by the right and left driven wheels, and the wetting element slidably supports at least about ten percent of the mass of the robot above the cleaning surface.

A floor cleaner can include a housing adapted for movement over a surface to be cleaned and at least one edge cleaning brush provided on the housing. The edge cleaning brush includes multiple cleaning implements which rotate on different axes. A gear system, such as a planetary gear system, can drive one cleaning implement at a lower speed than another cleaning implement.

An improved cleaning head for a vacuum assembly. The cleaning head has a body with a bottom surface. Within the cleaning head is at least one suction channel that leads into a vacuum cleaner. A first rotating brush is mounted to the body of the cleaning head in front of a suction channel. A towelette support is mounted within the body adjacent the first rotating brush. The towelette support is configured to receive a disposable towelette. A second rotating brush may also be provided, wherein the towelette support would be interposed between the first and second rotating brushes. A mechanism is provided for selectively moving the towelette support within the body between an extended position and a retracted position.

A mobile robot of the present disclosure emits a first patterned light downward and forward from a main body on a floor of an area to be cleaned and a second patterned light upward and forward from the main body, determines an obstacle based on an image of each emitted patterned light which is incident on the obstacle, and senses a tilt of the main body to compensate for the tilt. In this manner, an obstacle may be determined accurately, and after the tilt compensation, redetermination is made as to whether it is possible to pass through, so as to enable the mobile robot to pass through or bypass the obstacle. Accordingly, the mobile robot may reach a wider area to be cleaned, thereby extending the area that may be cleaned, and enabling fast determination and operation for effective traveling, such that the mobile robot may escape from an obstacle without being limited thereby.

A autonomous cleaner includes: a cleaner body including a wheel unit for autonomous traveling; a suction unit provided to protrude from one side of the cleaner body, the suction unit sucking air containing dust; a sensing unit provided at the one side of the cleaner body; a dust container accommodated in a dust container accommodation part formed at the other side of the cleaner body, the dust container collecting dust filtered from sucked air; and a dust container cover hinge-coupled to the cleaner body to be rotatable, the dust container cover being provided to cover a top surface of the dust container when the dust container cover is coupled to the dust container.

A cleaning device, for cleaning a surface, includes a nozzle arrangement. The nozzle arrangement includes a brush compartment surrounded by a brush. The brush includes brush elements including tip portions for contacting the surface to be cleaned and picking up dirt particles and/or liquid from the surface during rotation of the brush. The nozzle arrangement further includes a bouncing element with position adjusted relative to the surface and depending on a direction of movement of the cleaning device. The bouncing element is arranged in a first position and at a first distance d1 to the surface, when the cleaning device is moved in a forward direction and in a second position and at a second distance d2 to the surface, when the cleaning device is moved in an opposite backward direction, such that d2 is greater than d1.

The present disclosure relates to an automatic cleaning device and a sweeping assembly thereof. The sweeping assembly includes: a brush holder, a brush body disposed at least partially in the brush holder; and an anti-winding structure. The anti-winding structure is located at a joint of the brush body and the brush holder, where the anti-winding structure is configured to at least partially fill a gap at the joint when the sweeping assembly is in a working state.