A cleaner can include a cleaner main body including a suction motor configured to generate a suction force to suction air containing dust on a cleaning surface, the cleaner main body being configured to separate the dust from the air suctioned; a nozzle placed on the cleaning surface and configured to suck the air containing dust on the cleaning surface; and an extension tube to which the nozzle is detachably connected, one end connected to the nozzle and the other end connected to the cleaner main body to guide the air containing dust from the cleaning surface to the cleaner main body.

A robot cleaner according to an embodiment may include a motor, a shaft configured to be rotated by the motor, a first member coupled to receive a rotational force from the shaft and including at least one guide protrusion protruding outwardly, and a second member coupled to allow the at least one guide protrusion to slidably move and including at least one guide groove formed in an inner side thereof. The first member may be configured to rotate relative to the second member such that the at least one guide protrusion moves along the at least one guide groove and moves upward or downward of the second member.

A cleaning head for a vacuum cleaner includes a brushroll chamber and defining an air path, an inlet into the brushroll chamber, and dual counterrotating brushrolls mounted in the brushroll chamber. The brushrolls have sets of tines that are timed to interfere with each other as the brushrolls rotate to pull pet hair and other debris into the air path.

A nozzle for a cleaner includes a nozzle housing including a suction flow path through which air including dust flows and at least a portion of which extends in a front and rear direction. First and second rotation cleaning units are arranged on the lower side of the nozzle housing to be spaced apart from each other in a lateral direction. Each of the first and second rotation cleaning units includes a rotation plate adapted for attachment of a mop. A first driving device including a first driving motor drives the first rotation cleaning unit and a second driving device including a second driving motor drives the second rotation cleaning unit. A water tank mounted on the nozzle stores water to be supplied to the mop.

A nozzle part and a robot cleaner including same are disclosed. A nozzle part according to various embodiments of the present invention comprises: a brush for collecting waste such as hair; and a removing member for removing the waste, such as hair, that is stuck to the brush. The removing member more quickly rotates than the brush in the same direction to remove the waste, such as hair, that is stuck to the brush. Therefore, the waste such as hair can be easily collected, removed and captured. Thus, user convenience can be improved.

A cleaning apparatus, and a driving device are provided. The cleaning apparatus includes a body, a rolling brush and the driving device. The rolling brush is configured to rotate about the axis thereof and has an inner cavity. The driving device is connected to the body and has a heat dissipation air duct. The driving device extends into the inner cavity of the rolling brush and cooperate with a transmission seat in the inner cavity. The driving device has an air inlet and a sealing member for sealing the air inlet. The sealing member is configured to open the air inlet under extrusion of the transmission seat when the driving device is assembled with the rolling brush to connect the heat dissipation duct with the inner cavity, and seal the air inlet under an elastic restoring force when the driving device is disassembled with the rolling brush.

Disclosed is a cleaner. A cleaner according to an embodiment of the present invention comprises: a brush; and a removal member that is positioned adjacent to the brush. The brush is rotated to collect garbage, such as hair, located on a floor surface. The collected garbage, such as hair, may be pushed by the removal member and separated from the brush. The garbage, such as hair, separated from the brush may pass through a nozzle housing and may then be collected in a dust bin. Therefore, the garbage, such as hair, attached to the brush can be easily separated and collected without a separate removal process. Accordingly, user convenience can be improved.

A nozzle for a cleaner includes a nozzle housing including a suction flow path through which air including dust flows, a nozzle base on which a driving motor is seated on an upper surface of the nozzle base, and a nozzle cover coupled to the upper surface of the nozzle base to cover the driving motor from above. The nozzle housing also includes a rotation plate disposed below the nozzle base and provided to attach a mop, a motor printed circuit board (PCB) disposed separately from the nozzle base and connected to the driving motor for an operation the driving motor, and a control board installed on the nozzle base and having a controller, in which the motor PCB is connected to the control board and receives a control signal, and the controller senses a current of the driving motor.

A robot cleaner according to an embodiment may include a motor, a shaft configured to be rotated by the motor, a first member coupled to receive a rotational force from the shaft and including at least one guide protrusion protruding outwardly, and a second member coupled to allow the at least one guide protrusion to slidably move and including at least one guide groove formed in an inner side thereof. The first member may be configured to rotate relative to the second member such that the at least one guide protrusion moves along the at least one guide groove and moves upward or downward of the second member.