Suction brush for vacuum cleaner

Abstract

The present invention relates to a suction brush for a vacuum cleaner. The suction brush includes a cleaning member for cleaning a cleaning surface, a suction port and a dust guiding groove for guiding contaminants-laden air to the suction port to be formed at a bottom surface of the suction brush, and a turbine fan driven by suction force of a suction motor for rotating the cleaning member. The suction brush comprises a catching part disposed apart from the suction port in a place corresponding to the suction port inside the dust guiding groove for reducing a space around the suction port, wherein the catching part prevents rigid, thin, and long foreign bodies from entering the suction pathway.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a suction brush for a vacuum cleaner. More particularly, the present invention relates to a suction brush for a vacuum cleaner with cloths.[0003]2. Description of the Related Art[0004]Generally, a vacuum cleaner is an apparatus for sucking dust or contaminants on a cleaning surface using suction force generated by a suction motor when a suction brush is moved on the cleaning surface.[0005]The vacuum cleaner can remove dust or / and contaminants scattered on a cleaning surface, but cannot effectively remove foreign bodies adhered on a cleaning surface and / or stains on a cleaning surface. At this time, after removing dust on a floor of a room using the vacuum cleaner, users should scrub the floor using a cloth in order to remove adhered foreign bodies or stains remaining on the cleaning surface. Thus, many users feel that it is inconvenient to clean with the conventional vacuum cleaner.[0006...

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 a suction brush for a vacuum cleaner, which can prevent thin, long foreign bodies with relatively rigidity from entering a suction pathway.

[0012]Another aspect of the present invention is to provide a suction brush for a vacuum cleaner, capable of increasing the rotation speed of a turbine fan.

[0013]The above aspect and / or other feature of the present invention can substantially be achieved by providing a suction brush for a vacuum cleaner, which includes a cleaning member for cleaning a cleaning surface, a suction port and a dust guiding groove for guiding contaminants-laden air to the suction port to be formed at a bottom surface of the suction brush, and a turbine fan driven by suction force of a suction motor for rotating the cleaning member. The suction brush comprises a catching part disposed apart from the suction port in a place corresponding to the suction port inside the dust guiding groove for reducing a space around the suction port, wherein the catching part prevents rigid, thin, and long foreign bodies from entering the suction pathway.

[0018]According to another aspect of the present invention, a suction brush for a vacuum cleaner comprises: a body having a suction port, a dust guiding groove guiding contaminants-laden air to the suction port, and a suction pathway guiding the contaminants-laden air entering through the suction port to a dust collecting apparatus; a turbine fan rotatably disposed at the suction pathway of the body; a cover covering an upper side of the body so as to the form the suction pathway; a partition wall formed along the length of the suction pathway inside the suction pathway in order to divide the suction pathway into a plurality of pathways; a pair of cloth supporting plates rotatably disposed on a bottom surface of the body for detachably mounting a cloth on a bottom surface of each of the cloth supporting plates; a power transmitting unit disposed in the body, the power transmitting unit transmitting the rotation power of the turbine fan to the pair of cloth supporting plates for rotating the pair of cloth supporting plates; and a catching part projected inside the dust guiding groove to face the suction port a predetermined distance apart, the catching part having a front surface facing the suction port, the area of which is larger than the area of the suction port, for reducing a space around the suction port.

[0021]With the suction brush for the vacuum cleaner according to an embodiment of the present invention, because rigid, thin, and long foreign bodies are prevented from entering the suction pathway through the suction port, the suction brush may prevent the entered foreign body from stopping the rotation of the turbine fan or from damaging the wings of the turbine fan.

[0022]Also, the area of the plurality of wings of the turbine fan is increased for receiving more power of air sucking through the suction pathway so that the rotation speed and the rotation torque of the turbine fan are increased. Therefore, the rotation speed of the cloth is increased so that the cleaning efficiency with respect to a cleaning surface is increased.

Problems solved by technology

The vacuum cleaner can remove dust or / and contaminants scattered on a cleaning surface, but cannot effectively remove foreign bodies adhered on a cleaning surface and / or stains on a cleaning surface.

Thus, many users feel that it is inconvenient to clean with the conventional vacuum cleaner.

Therefore, users cannot wipe the cleaning floor away.

These problems are basically caused because there is no special structure around the suction port for preventing thin, long foreign bodies from entering the suction pathway.

On the other hand, because the conventional turbine fan is rotated by the indirect driving method using suction force by the suction motor, to increase the rotation speed and rotation torque of the cloth is limited compared to the direct driving method that a motor is directly connected to the cloth supporting part to rotate the cloth.

Therefore, when a cleaning surface is a little rough, the conventional suction brush cannot smoothly rotate the cloth so that a cleaning work is not effectively performed.

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