An automatically moving floor processing device has a housing, at least one drive element that is driven by an electric motor and can rotate around a drive axle for movement purposes, and at least one contact element that moves ahead of the drive element in the direction of movement, which extends from a housing underside of the housing in the direction of a surface to be processed. In order to make it easier to overcome obstacles, a contact surface of the contact element pointing in the direction of movement and/or a connecting line that connects the contact surfaces of two contact elements be oriented nonparallel to the drive axle of the drive element, and be spaced apart from a contact surface of the drive element by a distance relative to the direction of movement that is less than one diameter of the drive element.

A method for adaptively operating a cleaning robot based on height difference between floors and the cleaning robot are provided, and according to an embodiment of the present disclosure, the cleaning robot that adaptively operates based on the height difference between the floors includes a central controller that controls a height adjuster that controls a height of a floor cleaner based on height information related to a space stored in a map storage and height information sensed by a sensor.

This invention relates to a suction head (10) for a vacuum cleaner and method of operation. The suction head (10) has a bottom surface (26) and one or more floor-engaging parts (36) adjacent to the bottom surface (26), an opening (24) in the bottom surface (26) and a rotatable brush (30) located at the opening (24). The suction head (10) has a front end (16) and a rear end (18), the front end (16) having a recess (22) in communication with the opening (24). A movable strip (42) is located in the recess (22), the movable strip (42) being movable between a first position and a second position, the bottom edge of the movable strip 4(2) being closer to the plane of the floor-engaging parts (36) in its first position than in its second position. At least one first element (54) is connected to the movable strip (42) and is able to project to the plane of the floor-engaging parts (36). At least one second element (56) is also connected to the movable strip (42), the second element(s) (56) being configured differently to the first element(s) (54), the second element(s) (56) being able to project to the plane of the floor-engaging parts (36) and being configured to move the movable strip (42) to a third position in use. The bottom edge of the movable strip (42) is closer to the plane of the floor-engaging parts (36) in its second position than in its third position. According to the method of operation, the movable strip (42) moves to its first position during backwards movement of the suction head (10) and to its third position during forwards movement of the suction head (10), the movable strip (42) moving to its third position in two stages.

A vacuum cleaner attachment generally includes a cleaning element that floats relative to a suction conduit of the vacuum cleaner attachment. The cleaning element is supported on a support structure that is movably coupled to a housing and is biased towards a floor, for example, as a result of the weight of the cleaning element support structure. The cleaning element may be permanently attached to the support structure or may be a removable or disposable pad or sheet attached to the support structure. The floating cleaning element may be supported between the suction conduit and one or more wheels of the vacuum cleaner attachment. The vacuum cleaner attachment may be removably attached to a vacuum cleaner, for example, to be used interchangeably with other surface cleaning heads.

A surface cleaning head includes a housing having a front side and back side, a brush roll rotatably mounted to the housing within a suction conduit and having at least a portion proximate the opening of the suction conduit, a leading roller mounted to the housing in front of the brush roll, and a drive mechanism operatively coupled to the brush roll and the leading roller for driving the brush roll and the leading roller at same time. The brush roll includes an agitator body and a first bristle/flap arrangement comprising a first deformable flap extending from the agitator body and a first bristle strip and/or row of tufts extending from the agitator body and disposed adjacent to the first deformable flap. The first deformable flap is disposed at an aggressive angle and the first bristle strip and/or row of tufts is arranged at a passive angle.

A vacuum tool configured to be removably coupled to hose or wand of a vacuum includes a body including a first end, a second end, and a first longitudinal axis extending between the first end and the second end. The vacuum tool also includes a head coupled to the first end of the body, a connection portion coupled to the second end of the body and configured to couple the body to a hose or wand of a vacuum cleaner, and a brush coupled to the head. The brush includes an elongate support defining a second axis perpendicular to the longitudinal axis of the body and configured to couple the brush to the head, and a plurality of bristles positioned on the elongate support.

Provided is a self-moving ground processing apparatus and a suction nozzle. The self-moving ground processing apparatus includes at least an apparatus main body and a suction nozzle coupled to the apparatus main body, where, a suction port is formed on the bottom of the suction nozzle, an advancing direction of the suction nozzle during the operation process is set as a forward direction, a front sealing strip is arranged on the front side of the suction port, the front sealing strip and includes a fixed end and a free end extending toward a working surface. The front sealing strip is made of a flexible material, and the front sealing strip is arranged to deviate from the forward direction, so that a projection of the fixed end on the working surface is positioned before a projection of the free end on the working surface.

A vacuum cleaner includes a housing having a suction nozzle opening, a source of suction in fluid communication with the suction nozzle opening for generating a working air stream through the housing, and a multiply-adjustable debris collecting blade coupled along the rear of the suction nozzle opening for collecting debris.

An autonomous coverage robot includes a cleaning assembly having forward roller and rearward rollers counter-rotating with respect to each other. The rollers are arranged to substantially maintain a cross sectional area between the two rollers yet permitting collapsing therebetween as large debris is passed. Each roller includes a resilient elastomer outer tube and a partially air-occupied inner resilient core configured to bias the outer tube to rebound. The core includes a hub and resilient spokes extending between the inner surface of the outer tube and the hub. The spokes suspend the outer tube to float about the hub and transfer torque from the hub to the outer tube while allowing the outer tube to momentarily deform or move offset from the hub during impact with debris larger than the cross sectional area between the two rollers.

A vacuum cleaner head capable of implementing a plurality of functions having different cleaning purposes and capable of changing the cleaning mode, thereby performing efficient cleaning without inconvenience is provided.

The vacuum cleaner head includes a first part having a first air passage communicating with a main air passage of a cleaner main body, a second part having a plurality of cleaner function units provided at different positions and a plurality of second air passages communicating between each of the cleaner function units and the first air passage. The second part is connected to the first part so that the inclination angle of the second part is changeable in multiple steps. By changing the inclination angle of the second part with respect to the first part, some of the plurality of cleaner function units is disposed so as to be usable and the second air passage is communicated with the first air passage for switching to the portion of the plurality of cleaner function units to be used.