Up-right type vacuum cleaner

Abstract

The present invention relates to an up-right type vacuum cleaner having a weight compensation unit to share weight of main body. The up-right type vacuum cleaner includes a brush assembly having a pair of wheels, a main body being rotatably disposed to the brush assembly, a spiral spring being disposed at a connecting part of one side of the brush assembly, and a spring wrap reel being disposed at the connecting part of one side of the main body corresponding to the spiral spring and on which one end of the spiral spring is fixed, wherein the spiral spring gets loosen and wound round the spring wrap reel as the main body angles downwards.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application claims the benefit under 35 U.S.C. §119(a) from Korean Patent Application Nos. 2005-54079 filed on Jun. 22 in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference in its entirety. BACKGROUND OF THE INVENTION [0002] 1. Field of The Invention [0003] The present invention relates to a vacuum cleaner. More particularly, the present invention relates to an up-right type vacuum cleaner having a weight compensation unit. [0004] 2. Description of The Related Art [0005] Generally, a vacuum cleaner generates suction force and sucks contaminants such as dust from a cleaning floor by the suction force. Vacuum cleaners are generally classified into a canister type, an up-right type, a stick type, a handy type, a drum type, and so on according to their shape and structure. [0006] Referring to FIG. 1, a conventional up-right type vacuum cleaner I includes a brush assembly 2 moving on a c...

AI Technical Summary

Benefits of technology

[0011] The present invention has been developed in order to overcome the above drawbacks and other problems associated with the conventional arrangement. An aspect of the present invention is to provide an up-right type vacuum cleaner that minimizes the force supporting the main body when the main body is angled downward. Another aspect of the present invention is to provide an up-right type vacuum cleaner wherein its main body can be angled with respect to its brush assembly without lifting up a front portion of a brush assembly from the surface being cleaned.

[0019] Furthermore, the up-right type vacuum cleaner according to the present invention is convenient to clean because the front part of the brush assembly does not lift up from the floor when the main body is angled downwards.

Problems solved by technology

When the front portion 2a of the brush assembly 2 is lifted up from the cleaning surface 9, the suction force sucking the contaminants decreases so that it is difficult to perform the cleaning.

Thus, many users feel that it is inconvenient to clean with the conventional up-right type vacuum cleaner 1.

Furthermore, the conventional up-right type vacuum cleaner 1 has another drawback that weight being applied to the handle 5 varies according to the angle 7 of the main body 3.

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