An overload control device for use with a floor machine having an electric motor is disclosed. The overload control device can include a power input and a power output connectable to the electric motor. The device can include a load detector, a current sensor operative to sense a current value supplied to the motor via the power output, and a cutoff relay interconnecting the power input and the power output. The cutoff relay being operative to supply power from the power input to the power output when activated, and interrupt power when deactivated. A controller receives a load present indication from the load detector and activates the cutoff relay if a load is present. The controller receives a current value from the current sensor, determines if the current value is greater than a threshold value, and deactivates the cutoff relay when the current value is greater than the threshold value.

A cleaning appliance includes: a main body with a bottom side, the main body being assigned on the bottom side, which faces toward a floor to be cleaned, at least one cleaning body, the at least one cleaning body being mounted on the main body so as to be rotatable about an axis of rotation, the axis of rotation of the cleaning body being oriented perpendicularly to the bottom side. The at least one cleaning body is mounted in the main body such that, during cleaning, the axis of rotation is movable relative to the bottom side along a movement path which is oriented perpendicularly to the axis of rotation.

The present disclosure relates to a method of controlling a robot cleaner including a pair of rotary plates having lower sides to which mops facing a floor surface are coupled, the robot cleaner being configured to move by rotating the pair of rotary plates, the method including: a region setting step of setting a cleaning region on the floor surface; and a movement step of moving the robot cleaner in the cleaning region, in which the region setting step divides the cleaning region into a plurality of divided regions, and the plurality of divided regions at least partially overlaps one another, such that it is possible to clean an entire cleaning region and repeatedly clean a particular region.

The present disclosure relates to a method of controlling a robot cleaner including a pair of rotary plates having lower sides to which mops facing a floor surface are coupled, the robot cleaner being configured to move by rotating the pair of rotary plates, the method including: a first forward movement step of moving the robot cleaner forward from a starting point toward a predetermined target point; a first rotation step of rotating the robot cleaner; a second forward movement step of moving the robot cleaner forward after the first rotation step; and a second rotation step of rotating the robot cleaner after the second forward movement step, such that the floor surface may be repeatedly cleaned only by the forward movement and the rotation.

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 cleaning assembly for a cleaning robot is provided. The cleaning assembly includes a motor, a transmission mechanism coupled with the motor, and a cleaning device comprising a shaft having a first gear coupled with the transmission mechanism and a cleaning module mounted to an end of the shaft. The transmission mechanism is configured to drive the shaft to rotate through the first gear. The shaft is configured to move axially. The cleaning module is configured to clean a surface area.

A nozzle of a cleaner includes a nozzle body, a rotation cleaning part having a rotation plate to which a rag is attached, a driving device provided in the nozzle body, a water tank, a water supply passage, and a water adjuster of which at least a portion is mounted on the nozzle body at a rear side thereof so as to be exposed to a rear surface or a top surface of the nozzle body. A user standing on the same floor surface as the nozzle body may manipulate the water adjuster by using his or her foot. The water adjuster may be configured to adjust an on/off operation and a rotation speed (e.g., rpm) of the pump motor.

A fast detachable automatic cleaning device includes a driving assembly and a cleaning assembly. The driving assembly includes a transmission shaft and at least one protrusion block that is a formed integral with the transmission shaft. The cleaning assembly includes a seat, a bearing sleeve connected to the seat, and a cleaning portion surrounding the seat. The bearing sleeve includes an assembly space, at least one track and at least one fixing hole. The driving assembly may be in a simplified structure through the formed integral of the transmission shaft and the protrusion block. Further, the protrusion block may be securely fastened in the fixing hole to enhance the assembly strength of the transmission shaft and the bearing sleeve to solve issues of a complicated structure and insufficient strength of convention solutions.

The present disclosure relates to a method of controlling a robot cleaner comprising a pair of rotary plates having lower sides to which mops facing a floor surface are coupled, the robot cleaner being configured to move by rotating the pair of rotary plates, the method including: a first movement step of allowing the robot cleaner to start from a predetermined starting point on the floor surface and move by a predetermined distance; a second movement step of moving the robot cleaner to the starting point after the first movement step; and a direction change step of rotating the robot cleaner by a predetermined direction change angle, such that the robot cleaner may precisely clean the circular cleaning region while repeatedly moving in the circular cleaning region.

A cleaning base station for a cleaning robot includes a base. The base defines a maintenance space. The cleaning base station further includes at least two of a debris suction device, a sewage pumping device, a cleaning liquid pumping device, a filtering device and a sterilization device. The at least two of the debris suction device, the sewage pumping device, the cleaning liquid pumping device, the filtering device and the sterilization device are installed in the maintenance space.