Vacuum cleaner
AssigneeSamsung Electronics Co., Ltd.
InventorsDong Jun KIM, Kyoung Woung KIM, Han Saem LEE
Life of this patent
Estimating the term…
Abstract
A vacuum cleaner includes a head unit that suctions foreign substances from a surface to be cleaned together with air. The head unit includes a first suction guide having a first suction chamber therein and a second suction guide disposed on a rear side of the first suction guide and having a second suction chamber therein, and the first suction chamber suctions air through a first degree of vacuum and the second suction chamber suctions air through a second degree of vacuum higher than the first degree of vacuum.
Claims18
A vacuum cleaner comprising:
- a head unit including:
- a suction pipe configured to transfer a suction force;
- a first suction chamber in communication with the suction pipe and configured to use the suction force to suction debris having a first size from a surface at a first vacuum pressure;
- and
- a second suction chamber, separated from the first suction chamber, provided behind the first suction chamber relative to a direction of travel of the head unit, in communication with the suction pipe, and configured to use the suction force to suction debris, having passed under the first suction chamber and having a second size smaller than the first size, from the surface at a second vacuum pressure stronger than the first vacuum pressure.
A vacuum cleaner comprising:
- a head unit including:
- a first suction guide having a first suction chamber,
- a second suction guide disposed on a rear side of the first suction guide relative to a direction of travel of the head unit, and having a second suction chamber,
- a first rotary brush rotatably installed in the first suction chamber and configured to guide debris to a rear side of the first rotary brush,
- a second rotary brush rotatably installed in the second suction chamber and configured to guide debris to a front side of the second rotary brush, and
- a nozzle blade disposed in a space between the first suction guide and the second suction guide, and configured to prevent debris having a size larger than a predetermined size from moving to the second suction chamber.
A head unit for a vacuum cleaner, the head unit configured to receive a suction force to suction debris from a surface into the head unit and comprising:
- a first suction chamber configured to use the suction force to suction debris having a first size, greater than a threshold size, from the surface at a first vacuum pressure;
- a second suction chamber configured to use the suction force to suction debris, having a second size, smaller than the first size, from the surface at a second vacuum pressure stronger than the first vacuum pressure;
- a partition provided between the first suction chamber and the second suction chamber to separate the first suction chamber from the second suction chamber;
- and
- an air restrictor provided on a lower surface of the head unit, and configured to reduce an air gap between the lower surface of the head unit and the surface to thereby restrict a flow of air through the air gap into the second suction chamber to establish the second vacuum pressure to be stronger than the first vacuum pressure.
Dependencies are inferred from the claim text.