The present disclosure relates to an autonomous cleaning device and a wind path structure for use in the autonomous cleaning device. The wind path structure includes: a cleaning component for cleaning cleaned objects, a cleaned object storage container for storing the cleaned objects, and a power component for generating a wind, the cleaning component, the cleaned object storage container, and the power component being arranged sequentially in a moving direction of the autonomous cleaning device; a first-level wind duct located between the cleaning component and the cleaned object storage container, wherein the first-level wind duct is coupled with the power component such that the cleaned objects are delivered to the cleaned object storage container by the wind generated by the power component; and a second-level wind duct located between the cleaned object storage container and the power component, wherein the second-level wind duct has a bell-mouth shape and includes an inner wall, the inner wall including an arc-shaped segment facing toward the wind coming from the cleaned object storage container to direct the wind to an air inlet of the power component.

A cleaner head for a vacuum cleaner includes a body that defines a suction chamber, the suction chamber having a suction inlet for engaging a surface to be cleaned, and an outlet for fluid connection to a suction generator of a vacuum cleaner. The cleaner head further includes first and second brush bars each configured to contact a surface engaged by the suction inlet, and a drive mechanism which has an actuator. The drive mechanism is configured to rotate the brush bars about respective axes. The drive mechanism is also configured to rotate the first brush bar independently of the second brush bar, and to rotate the second brush bar independently of the first brush bar.

A suction nozzle apparatus and a cleaner having the same includes a casing of which a mounting groove is formed in a bottom surface, a drum brush rotatably coupled to the mounting groove of the casing, and a cutting member configured to remove a foreign substance wound around the drum brush. The drum brush includes a drum core in which at least one foreign substance collecting groove that the foreign substance is wound is formed in an outer circumference and a blade formed in a spiral form in the outer circumference of the drum core.

A robotic vacuum cleaner having a nozzle inlet facing a surface to be cleaned, and a rotatable side brush. The rotatable side brush has bristles extending substantially in parallel with the surface to be cleaned, and the nozzle inlet includes a frame structure forming an opening, the opening being arranged in fluid communication with a debris receptacle. The bristles extend over a side portion of the nozzle inlet. The frame structure has a base portion extending substantially in parallel with the surface to be cleaned. The base portion extends at a first level. The frame structure at the side portion extends substantially in parallel with the surface to be cleaned at a second level. The first level is arranged closer to the surface to be cleaned than the second level.

A robotic vacuum cleaner having a nozzle inlet arranged in a portion of a housing of the vacuum cleaner. The nozzle inlet has a frame structure forming an opening. The frame structure has a base portion extending substantially in parallel with a surface to be cleaned, the base portion extending at a first level. A leading edge portion has at least two distance members forming there between a channel to the opening. The channel has a delimiting surface extending at a second level substantially in parallel with the first level. The first level is arranged closer to the surface to be cleaned than the second level. Each distance member has a substantially triangular cross section. At least a portion of side surfaces of the distance members extend substantially perpendicularly to the base portion.

A vacuum cleaner capable of more efficiently cleaning narrow spots while effectively avoiding an object. An object sensor provided in a main casing detects the presence or absence of an object within a specified distance in a plurality of directions on a forward side of the main casing. A control unit controls operation of driving wheels, based on detection of an object by the object sensor to thereby make the main casing autonomously travel. When an object is detected by the object sensor, the control unit controls the operation of the driving wheels, so that the main casing is swung to an angle corresponding to a direction of the detected object to thereby make a side portion of the main casing face the object.

A cleaning roller is mountable to a cleaning robot. The cleaning roller includes a sheath comprising a shell, an outer diameter of the shell tapering from a first end portion of the sheath and a second end portion of the sheath toward a center of the roller. The cleaning roller further includes a core including a central portion interlocked with the sheath to rotationally couple the core to the sheath and inhibit relative translation of the sheath and the core along an axis of rotation. An inner surface of the sheath and an outer surface of the core define an air gap therebetween, the air gap extending from the central portion of the core longitudinally along the axis of rotation toward the first end portion or the second end portion.

A method of controlling an automatic cleaner in which the automatic cleaner is moved with a side brush assembly in a first operation type, a corner is determined during the movement of the automatic cleaner, the first operation type of the side brush assembly is changed to a second operation type to clean the corner when the corner is determined, whether the corner is cleaned is determined, and the second operation type of the side brush assembly is returned to the first operation type when the corner is cleaned.

An agitator including an elongated main body configured to rotate about a pivot axis, one or more soft cleaning features coupled to and extending over a substantial portion of a surface of the elongated main body, the one or more soft cleaning features defining at least one channel, and at least one deformable flap disposed at least partially within the at least one channel and extending from the elongated main body. The deformable flap may extend beyond an outer surface of the soft cleaning features. The channel may have a generally U shape and/or V shape. The channel may be configured to allow the resiliently deformable flap to move front to back as the agitator rotates about the pivot axis.

A cleaning apparatus includes a combing unit including a series of spaced protrusions or teeth extending into a cleaning roller for preventing build up and removing debris (such as hair, string, and the like). The protrusions extend along a substantial portion of the cleaning roller and extend partially into the cleaning roller to intercept the debris as it passes around the roller. The protrusions have angled leading edges that are not aligned with a rotation center of the cleaning roller and are directed into or against a direction of rotation of the cleaning roller. The combing unit and protrusions have a shape and configuration designed to facilitate debris removal from the cleaning roller with minimal impact on the operation of the cleaning apparatus. The cleaning apparatus may include a surface cleaning head of an upright vacuum cleaner or sweeper or a robotic vacuum cleaner.