An upright vacuum cleaner (1) includes a brushroll assembly (100) having a brushroll casing (12) and a brushroll (11); a motor assembly (200) having a motor housing (21) and a motor (22); a body assembly (300) having a body (31) and a bridging member (32), in which the bridging member (32) is pivotally connected to the motor housing (21) to make the body (31) rotatable between an upright position and an oblique position; and an elastic assembly (4) provided between the brushroll casing (12) and the bridging member (32), and configured to be pressed downward against the brushroll casing (12) by the bridging member (32) when the body (31) rotates from the upright position to the oblique position.

A cyclonic separating device (900) for an upright vacuum cleaner and an upright vacuum cleaner (1) with the same are disclosed. The cyclonic separating device (900) includes a dirt cup (37), a filter (92) and a cyclonic cone assembly (93). The filter (92) is disposed in the dirt cup (37) and includes a filter inlet (92a) and a filter outlet (92b) communicating between the filter inlet (92a) and an air outlet (373). The cyclonic cone assembly (93) includes a cyclone (931) and a cyclonic guide (932), in which a first end of the cyclone (931) is communicated with an air inlet (372), and the cyclonic guide (932) is fitted in a second end of the cyclone (931) and is detachably fitted over the filter (92) to spirally guide dirty air introduced into the cyclone (931) from the air inlet (372) to the filter inlet (92a).

An upright vacuum cleaner (1) includes: a brushroll assembly (100) including a brushroll casing (12) and a brushroll (11), the brushroll casing (12) defining a brushroll air-suction channel (122) therein; a motor assembly (200) including a motor housing (21) and a motor (22), the motor housing (21) having an air exhaust hole (213), a dirty air outlet (211) and a clean air inlet (212) and defining a motor air-suction channel (216) and a motor air-exhaust channel; and a body assembly (300) including a body (31) and a dirt cup (37) mounted to the body (31), the dirt cup (37) having a separating chamber (371) communicating with the dirty air outlet (211) and the clean air inlet (212) respectively.

A vacuum cleaner for removing debris from a surface to be cleaned includes a suction chamber having a suction nozzle opening, a source of suction in fluid communication with the suction chamber, a brushroll provided within the suction chamber, and a roller provided in a roller chamber in front of the brushroll.

A vacuum cleaner for removing debris from a surface to be cleaned includes a suction chamber having a suction nozzle opening, a source of suction in fluid communication with the suction chamber, a brushroll provided within the suction chamber, and a roller provided in a roller chamber in front of the brushroll.

An autonomous floor-cleaning robot comprising a housing infrastructure including a chassis, a power subsystem; for providing the energy to power the autonomous floor-cleaning robot, a motive subsystem operative to propel the autonomous floor-cleaning robot for cleaning operations, a command and control subsystem operative to control the autonomous floor-cleaning robot to effect cleaning operations, and a self-adjusting cleaning head subsystem that includes a deck mounted in pivotal combination with the chassis, a brush assembly mounted in combination with the deck and powered by the motive subsystem to sweep up particulates during cleaning operations, a vacuum assembly disposed in combination with the deck and powered by the motive subsystem to ingest particulates during cleaning operations, and a deck adjusting subassembly mounted in combination with the motive subsystem for the brush assembly, the deck, and the chassis that is automatically operative in response to an increase in brush torque in said brush assembly to pivot the deck with respect to said chassis. The autonomous floor-cleaning robot also includes a side brush assembly mounted in combination with the chassis and powered by the motive subsystem to entrain particulates outside the periphery of the housing infrastructure and to direct such particulates towards the self-adjusting cleaning head subsystem.

An autonomous floor-cleaning robot comprising a housing infrastructure including a chassis, a power subsystem; for providing the energy to power the autonomous floor-cleaning robot, a motive subsystem operative to propel the autonomous floor-cleaning robot for cleaning operations, a command and control subsystem operative to control the autonomous floor-cleaning robot to effect cleaning operations, and a self-adjusting cleaning head subsystem that includes a deck mounted in pivotal combination with the chassis, a brush assembly mounted in combination with the deck and powered by the motive subsystem to sweep up particulates during cleaning operations, a vacuum assembly disposed in combination with the deck and powered by the motive subsystem to ingest particulates during cleaning operations, and a deck adjusting subassembly mounted in combination with the motive subsystem for the brush assembly, the deck, and the chassis that is automatically operative in response to an increase in brush torque in said brush assembly to pivot the deck with respect to said chassis. The autonomous floor-cleaning robot also includes a side brush assembly mounted in combination with the chassis and powered by the motive subsystem to entrain particulates outside the periphery of the housing infrastructure and to direct such particulates towards the self-adjusting cleaning head subsystem.

An autonomous floor-cleaning robot comprising a housing infrastructure including a chassis, a power subsystem; for providing the energy to power the autonomous floor-cleaning robot, a motive subsystem operative to propel the autonomous floor-cleaning robot for cleaning operations, a command and control subsystem operative to control. the autonomous floor-cleaning robot to effect cleaning operations, and a self-adjusting cleaning head subsystem that includes a deck mounted in pivotal combination with the chassis, a brush assembly mounted in combination with the deck and powered by the motive subsystem to sweep up particulates during cleaning operations, a vacuum assembly disposed in combination with the deck and powered by the motive subsystem to ingest particulates during cleaning operations, and a deck adjusting subassembly mounted in combination with the motive subsystem for the brush assembly, the deck, and the chassis that is automatically operative in response to an increase in brush torque in said brush assembly to pivot the deck with respect to said chassis. The autonomous floor-cleaning robot also includes a side brush assembly mounted in combination with the chassis and powered by the motive subsystem to entrain particulates outside the periphery of the housing infrastructure and to direct such particulates towards the self-adjusting cleaning head subsystem.

A vacuum cleaner includes a housing having a suction nozzle, a source of suction in fluid communication with the suction nozzle for generating a working air stream through the housing, an agitator provided within the housing, and a roller provided in front of the agitator which rolls over larger debris while creating a seal for picking up smaller debris.

A nozzle assembly for a vacuum cleaner includes a driving member including a first driving shaft and a second driving shaft in both sides thereof, a first drum of which one end is coupled to the first driving shaft to be driven by directly receiving driving force of the first driving shaft, and a second drum of which one end is coupled to the second driving shaft to be driven by directly receiving driving force of the second driving shaft.