Provided is a vacuum cleaner including a cleaner body; a dust container installed at the cleaner body and of which at least a part is exposed to an outside through a front surface of the cleaner body; a cover member installed to open and close a part of the cleaner body and configured to selectively accommodate an upper portion of the dust container; a suction hose of which one side is connected to a suction part for suctioning dust and the other side is connected to a front end of the cover member; a grip portion provided at the cover member and operated to open and close the cover member; and a locking assembly provided inside the cover member and disposed at both sides based on the suction part to be restricted in the cleaner body.

Provided is a vacuum cleaner including a cleaner body; a moving wheel provided at each of both side surfaces of the cleaner body, rotated for travelling of the vacuum cleaner and configured to support the cleaner body to be rotatable in normal and reverse directions; a wheel motor assembly connected to the moving wheel and configured to rotate the moving wheel for the travelling of the vacuum cleaner; a main motor provided inside the cleaner body, located at a rear side further than a vertical extension line of a rotating center of the moving wheel and driven to suction dust; and a battery provided inside the cleaner body, located at the rear side further than the vertical extension line of the rotating center of the moving wheel and configured to provide electric power to the main motor and the wheel motor assembly, wherein a center of gravity of the cleaner body is located at a rear of the vertical extension line of the rotating center of the moving wheel due to an arrangement of the main motor and the battery.

A cleaner includes a first extension pipe connected to a suction portion contacting a surface to be cleaned, and a second extension pipe coupled to a cleaner body having a driver generating suction force, and rotatably coupled to the first extension pipe. The first and second extension pipes operate in a first arrangement configured to allow the second extension pipe to be arranged in a longitudinal direction of the first extension pipe, and a second arrangement configured to allow the second extension pipe to rotate in a first direction from the first arrangement such that the first extension pipe and the second extension pipe are arranged to face each other. Such configuration enables a user to increase cleaning efficiency.

There is provided a robot cleaner having an improved dust-collecting capability and an improved suction force and capable of being manufactured in a small size. The robot cleaner includes a main body comprising a fan motor and having a suction port provided in one side thereof; a plurality of cyclone units configured to separate foreign substances in air suctioned through the suction port; and a plurality of suction flow paths connecting the plurality of cyclone units and the suction port.

An upright vacuum cleaner with one or more features, such as a top opening rigid container, a headlight, a replaceable power cord a motor housing suspended within the vacuum to reduce noise and/or vibration a clutch assembly with a RPM sensor, and/or one or more filter plates to improve airflow.

An electric powered work machine according to one aspect of the present disclosure includes a first and a second digital filters, a control sound source, an error sensor, and a characteristics adjustor. The first digital filter includes a series of taps and generates a control signal. The control sound source produces an artificial noise in accordance with the control signal. The error sensor converts a synthesized sound of the artificial noise and a target noise at a canceling location to an error signal. The second digital filter includes N taps and generates a filtered reference signal. The characteristics adjustor uses the error signal and the filtered reference signal to adjust a coefficient of each tap of M taps in the series of taps. Each of M and N is a positive integer satisfying M<N.

A surface cleaning apparatus comprises a brushroll that rotates about an axis. The brushroll defines a cylindrical portion and the axis extends centrally through the cylindrical portion. The brushroll also includes a rib that extends in a direction away from the axis. The rib includes a face extending along a line that is collinear with a secant through the cylindrical portion. A brush member extends from the face.

A hand vacuum cleaner has an air flow path extending from a dirty air inlet provided at a front end of the hand vacuum cleaner to a clean air outlet, a main body housing a suction motor, and an air treatment member that is moveably mounted to the main body between an operating position and an emptying position. The hand vacuum cleaner also includes a post-motor filter housing, wherein a post-motor-filter is removably receivable in the post-motor filter housing, and wherein moving the air treatment member to the emptying position enables access to the post-motor-filter.

The invention discloses an inverted cone separation device with double dust-collecting cups and cleaner comprising the same, the inverted cone separation device comprises a separator, a dust-collecting cup connecting member, and dust-collecting cups, the separator includes a first and second separator, the first separator is arranged in a first cavity, and the second separator is arranged in a second cavity; the first separator includes an inverted cone filter, the surface of the inverted cone filter includes a filtering and non-filtering surface; the filtering surface is in communication with an air duct. When implementing the invention, large-particle garbage can be separated in a first dust-collecting cup through the inverted cone filter, and other garbage enters the second dust-collecting cup through the air duct, therefore, the large-particle garbage can be separated and be effectively prevented from entangling and blocking in the dust-collecting cup, and the efficiency of dust collection is improved.

A cleaner for collecting dust is provided. The cleaner includes a suction head, a dust collector having a first end mounted on the suction head and including a first dust collecting chamber, an extension member slidably mounted on the dust collector at the other end opposite to the first end of the dust collector, and a first dirt removing member disposed at one end of the extension member and having elasticity.