Suction brush for vacuum cleaner
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.
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1. Field of the Invention
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.
2. Description of the Related Art
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.
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.
To solve the above problem, there was provided a suction brush for a vacuum cleaner having a cloth rotating structure inside the suction brush to remove dust and wipe away simultaneously, as disclosed in Korean Patent No. 449415.
The cloth rotating structure includes a turbine fan rotated by sucked outside air, a power transmitting unit for transmitting a rotation power of the turbine fan to opposite sides of an under part of the suction brush with a plurality of driving shafts and spur gears, and a pair of cloth supporting parts to receive the rotation power of the turbine fan via the power transmitting unit so as to rotate the cloths.
However, in the conventional suction brush, to rotate the cloths by the rotation power of the turbine fan, a suction pathway P through which sucked dust passes suddenly narrows due to the turbine fan 3 disposed in the suction pathway P of the suction brush 1 as shown in
Furthermore, when the rigidity of the foreign body 5 caught in the narrow space S1 is not less than the rigidity of wings 3a of the turbine fan 3, the wings 3a are damaged. 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.
SUMMARY OF THE INVENTIONThe 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.
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.
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.
The catching part is wider than the width of the suction port, and a bottom end of the catching part is formed at a lower level than a bottom end of the suction port.
Both sides of the catching part are inclined in a direction of the suction port. A bottom surface of the catching part is inclined in a direction of the suction port.
The turbine fan comprises a pair of supporting discs; and a plurality of wings disposed between the pair of supporting discs, one end of each of the wings is fixed to anyone of the pair of supporting discs, the other end of each of the wings alternating with to overlap each other.
The suction brush further comprises 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.
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.
The turbine fan has a plurality of wings disposed between a pair of supporting discs, one end of each of the plurality of wings alternating to overlap each other.
A distance between the suction port and the front surface of the catching part facing the suction port is approximately 12.5 mm to 14.5 mm.
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.
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.
With the suction brush according to an embodiment of the present invention, the width of the suction pathway becomes narrower than the width of the conventional suction pathway due to the partition wall so that rigid, thin, and long foreign bodies entering the suction pathway becomes roughly parallel to the suction pathway.
Other objects, advantages and salient features of the invention will become apparent from the following detailed description, which, taken in conjunction with the annexed drawings, discloses preferred embodiments of the invention.
These and/or other aspects and advantages of the invention will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
Throughout the drawings, like reference numerals will be understood to refer to like parts, components and structures.
DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTSHereinafter, certain exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The matters defined in the description, such as a detailed construction and elements thereof, are provided to assist in a comprehensive understanding of the invention. Thus, it is apparent that the present invention may be carried out without those defined matters. Also, well-known functions or constructions are omitted to provide a clear and concise description of exemplary embodiments of the present invention.
A suction brush according to an embodiment of the present invention is in fluid communication with a cleaner body having a suction motor and a dust collecting apparatus. For this end, the suction brush is connected with the cleaner body directly or via a flexible hose. The suction motor, dust collecting apparatus, cleaner body, and flexible hose may have any of various shapes and structures as well known, so that they will not be shown here.
Furthermore, the suction brush may employ a rotating brush with bristles fixed on an outer circumferential surface thereof or rotating cloths as a cleaning member for wiping a cleaning surface. In the below description, the suction brush according to an embodiment of the present invention has at least one cloth as the cleaning member.
Referring to
The body 11 has at a bottom surface thereof a suction port 62a and 62b (see
A connecting pipe 23 being in fluid communication with the flexible hose (not shown) and a necking part 21 wrapping around a part of the turbine fan 30 are disposed at a backside of the body 11.
The turbine fan 30 is disposed at the suction pathway 61a and 61b, and has a pair of supporting discs 31a and 31b and a plurality of wings 33a and 33b disposed between the pair of supporting discs 31a and 31b as shown in
Because the free ends 34a and 34b of the plurality of wings 33a and 33b is formed to overlap each other, the total area of the plurality of wings 33a and 33b is increased as much as the overlapping area of the plurality of wings 33a and 33b compared with the conventional turbine fan. Therefore, the plurality of wings 33a and 33b receives more force as much as the increased overlapping area of the plurality of wings 33a and 33b by air that is sucked in the suction pathway 61a and 61b along a direction of arrow B of
Referring to
An end of each of the pair of driving shafts 41a and 41b is fixed to a fixing hole 35 (see
The pair of worm wheels 43a and 43b is respectively disposed at ends of the pair of vertical shafts 45a and 45b and a pair of cloth supporting parts 47 is respectively disposed at the other ends of the pair of vertical shafts 45a and 45b, as shown in
The cloth supporting part 47 and the cloth 49 are configured as a pair. However, the pair of cloth supporting parts 47 and cloths 49 has the same structure so that only one cloth supporting part 47 and one cloth 49 is shown in
Furthermore, the suction pathway is divided into two suction pathways 61a and 61b by a partition wall 63 (see
A catching part 50 is projected in the dust guiding groove 15 (see
In the suction brush according to an embodiment of the present invention, the width W1 of the suction pathway 61a and 61b becomes narrower than the width of the conventional suction pathway due to the partition wall 63 so that a rigid, thin, and long foreign body 5 entering the suction pathway 61a and 61b becomes roughly parallel to the suction pathway 61a and 61b as shown in
As a result, the catching part 50 prevents the foreign body 5 from passing through the suction port 62a and 62b, entering the suction pathway 61a and 61b, and being inserted in a space S2 between the turbine fan 30 and the body 11 or between the turbine fan 30 and the cover 13. Also, the catching part 50 can prevent the foreign body 5 from restricting rotation of the turbine fan 30 and damaging the wings 33a and 33b of the turbine fan 30.
Furthermore, the catching part 50 may be formed so that both sides 53 thereof are inclined in a direction of the suction port 62a and 62b as shown in
When the both sides 53 and bottom surface 55 of the catching part 50 are inclined as above described, air sucking in along the dust guiding groove 15 and air sucking in along the bottom surface 55 of the catching part 50 through a plurality of grooves 18 between a plurality of spacers 17 is smoothly guided to the suction port 62a and 62b.
Because the suction brush according to an embodiment of the present invention prevents rigid, thin, and long foreign bodies from entirely 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.
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 cloth smoothly rotates thereby increasing the cleaning efficiency with respect to a cleaning surface.
While the embodiments of the present invention have been described, additional variations and modifications of the embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims shall be construed to include both the above embodiments and all such variations and modifications that fall within the spirit and scope of the invention.
Claims
1. A suction brush for a vacuum cleaner having 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 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 comprising:
- 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 a suction pathway.
2. The suction brush for the vacuum cleaner of claim 1, wherein the catching part is wider than a width of the suction port, and
- wherein a bottom end of the catching part is formed at a lower level than a bottom end of the suction port.
3. The suction brush for the vacuum cleaner of claim 1, wherein both sides of the catching part are inclined in a direction of the suction port.
4. The suction brush for the vacuum cleaner of claim 1, wherein a bottom surface of the catching part is inclined in a direction of the suction port.
5. The suction brush for the vacuum cleaner of claim 1, wherein the turbine fan comprises:
- a pair of supporting discs; and
- a plurality of wings disposed between the pair of supporting discs, one end of each of the wings is fixed to one of the pair of supporting discs, the other end of each of the wings alternating in position to overlap each other.
6. The suction brush for the vacuum cleaner of claim 1, further comprising 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.
7. A suction brush for a vacuum cleaner, comprising:
- 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 a 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, an area of which is larger than an area of the suction port, for reducing a space around the suction port.
8. The suction brush for the vacuum cleaner of claim 7, wherein the turbine fan has a plurality of wings disposed between a pair of supporting discs, one end of each of the plurality of wings alternating in position to overlap each other.
9. The suction brush for the vacuum cleaner of claim 7, wherein a distance between the suction port and the front surface of the catching part facing the suction port is approximately 12.5 mm to 14.5 mm.
10. A suction brush for a vacuum cleaner comprising:
- a suction port;
- a dust guiding groove for guiding contaminants-laden air to the suction port at a bottom surface of the suction brush; and
- 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 a suction pathway.
11. The suction brush for the vacuum cleaner of claim 10, wherein the catching part is wider than a width of the suction port, and
- wherein a bottom end of the catching part is formed at a lower level than a bottom end of the suction port.
12. The suction brush for the vacuum cleaner of claim 1, wherein both sides of the catching part are inclined in a direction of the suction port.
13. The suction brush for the vacuum cleaner of claim 1, wherein a bottom surface of the catching part is inclined in a direction of the suction port.
Type: Application
Filed: Aug 23, 2006
Publication Date: Jul 12, 2007
Applicant:
Inventors: Jang-Keun Oh (Gwangju-city), Jung-gyun Han (Gwangju-city), Soon-tack Lim (Kimhae-si)
Application Number: 11/508,219
International Classification: A47L 5/10 (20060101);