Patent ID: 6948212

Claim:
A vacuum cleaner, comprising: a single suction nozzle having a suction port contacting with a surface to be cleaned, a brush, and a vacuum generating device for generating a suction force at the suction port; an air suction path connected to one end to the vacuum generating device of the suction brush; a dust collecting apparatus connected to the other end of the air suction path, for separating and collecting dust and contaminants from air drawn in through the air suction path, the dust collecting apparatus comprising: a cyclone-type dust collecting apparatus including a dust chamber having a first capacity, said cyclone-type dust collecting apparatus causing the drawn air to whirl and thus separate dust and contaminants from the air by centrifugal force generated by the whirling air, and a pocket-type dust collecting apparatus having a dust pocket of a second capacity, said pocket-type dust collecting apparatus causing the drawn air to pass through the dust pocket, thereby filtering out dust and contaminants from the air, the cyclone-type dust collecting apparatus or the pocket-type dust collecting apparatus being used alternatively in accordance with the characteristics of the space to be cleaned; a fixing member provided to the suction brush having a shape of a hollow pipe standing upright on the suction nozzle, said fixing member removably securing either the cyclone-type dust collecting apparatus or the pocket-type dust collecting apparatus to the suction brush, as needed; and one or more fastening members perpendicularly passing through the fixing member.