U.S. patent application number 10/242984 was filed with the patent office on 2003-12-04 for vacuum cleaner having a brush with a floor cloth.
Invention is credited to Oh, Jang-Keun.
Application Number | 20030221281 10/242984 |
Document ID | / |
Family ID | 29578229 |
Filed Date | 2003-12-04 |
United States Patent
Application |
20030221281 |
Kind Code |
A1 |
Oh, Jang-Keun |
December 4, 2003 |
Vacuum cleaner having a brush with a floor cloth
Abstract
A brush for a vacuum cleaner having floor cloth capable of
rotating the rotating body to which the floor cloth is attached
using a turbine driven by the air sucked in without using any
additional power source. The brush for the vacuum cleaner of the
present invention comprises a brush case, a driving means disposed
inside the brush case and driven by kinetic energy of the external
air being sucked inside, a power transferring gear disposed at both
sides of the driving means and orthogonally transferring rotary
power received from the driving means, and a rotating body
connected with the power transferring gear having rotating floor
cloth attached.
Inventors: |
Oh, Jang-Keun;
(Gwangju-City, KR) |
Correspondence
Address: |
LADAS & PARRY
224 SOUTH MICHIGAN AVENUE, SUITE 1200
CHICAGO
IL
60604
US
|
Family ID: |
29578229 |
Appl. No.: |
10/242984 |
Filed: |
September 13, 2002 |
Current U.S.
Class: |
15/387 ;
15/385 |
Current CPC
Class: |
A47L 9/0433 20130101;
A47L 9/0416 20130101 |
Class at
Publication: |
15/387 ;
15/385 |
International
Class: |
A47L 005/10 |
Foreign Application Data
Date |
Code |
Application Number |
Jun 4, 2002 |
KR |
2002-31271 |
Claims
What is claimed is:
1. A brush for a vacuum cleaner having an attached floor cloth, the
brush comprising: a brush case; a driving means disposed inside the
brush case and driven by the kinetic energy of the external air
being sucked inside; a power transferring gear disposed at both
sides of the driving means and orthogonally transferring rotary
power received from the driving means; and a rotating body
connected with the power transferring gear having an attached floor
cloth.
2. The brush for the vacuum cleaner having an attached floor cloth
as in claim 1 wherein the driving means comprises a turbine.
3. The brush for the vacuum cleaner having an attached floor cloth
as in claim 2 further comprising an air guide for intensively
guiding the external air sucked into the brush in the direction of
the turbine.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates generally to a vacuum cleaner,
and more particularly, to a brush for a vacuum cleaner having a
floor cloth capable of rotating a rotating body to which the floor
cloth is attached using a turbine driven by the external air sucked
into the brush without using any additional power source.
[0003] 2. Description of the Related Art
[0004] Generally, a vacuum cleaner is an apparatus for removing
substances, such as dust, off the floor by sucking the external air
including the substances such as dust and passing them through a
filter using the rotary power of a pan motor.
[0005] The above mentioned vacuum cleaner generally comprises a pan
motor, a dust collecting receptacle, a body including an internally
disposed filter, and a hose connected with the body. At the end of
the hose, a handle including a driving switch for power on/off and
an extension pipe extended from the handle and connected with the
brush are disposed.
[0006] When the pan motor of the vacuum cleaner's body is driven,
negative air pressure is generated in the dust collecting
receptacle, and accordingly, external air including substances,
such as dust, is flown into the dust collecting receptacle of the
body through the extension pipe and the hose, after being flown
into the inside of the brush passing through the suction port of
the brush. The flown-in external air is discharged outside through
the exhaust grill at the rear side of the body after removal of the
unwanted impure substances, which occurs in the air passing through
the dust filter.
[0007] The vacuum cleaner can remove dust and impure substances off
the floor but cannot easily remove stubborn dirt and stains.
[0008] Therefore, recently a vacuum cleaner having an attached
floor cloth has been developed to remove stubborn dirt and stains
as well as dust and impure substances off the floor. Such vacuum
cleaner removes stubborn dirt and stains by rotating the rotating
body to which floor cloth is attached by using a driving motor
connected to a separate power source. Using a separate power source
and a driving motor made the volume of the brush case excessively
large and the vacuum cleaner heavy and therefore it becomes
inconvenient for a user to carry around the vacuum cleaner and do
the cleaning work.
[0009] In addition, providing such brush for a vacuum cleaner is
expensive, is likely to have problems in parts and has a low power
transmission torque.
SUMMARY OF THE INVENTION
[0010] The object of the present invention for overcoming the above
mentioned problems is to provide a brush for a light, small, and
cheap vacuum cleaner by rotating the rotating body with floor cloth
attached using the kinetic energy of the external air flow into the
vacuum cleaner without requiring a separate power supply means and
a motor inside the brush of the vacuum cleaner having an attached
floor cloth.
[0011] In order to achieve the above described object, the present
invention is developed to provide a brush for a vacuum cleaner
comprising a brush case, a driving means disposed inside the brush
case and being driven by the kinetic energy of the external air
being sucked inside, a power transferring gear disposed at both
sides of the driving means and orthogonally transferring rotary
power received from the driving means, and a rotating body
connected with the power transferring gear having floor cloth
attached.
[0012] It is preferable that the brush case is comprised of an
upper case and a lower case and the power transferring gear is
comprised of a worm and a worm gear.
[0013] It is preferable that the driving means disposed inside the
brush case and driven by the kinetic energy of the external air
being sucked inside is a turbine.
[0014] It is preferable that the brush comprises an air guide for
intensively guiding the external air sucked into the brush in the
direction of the turbine.
[0015] According to the present invention, the vacuum cleaner can
be reduced in volume, weight and price, and troubles in parts can
also be significantly reduced as the turbine is driven using the
kinetic energy of the external air flow without requiring a power
driving means such as a separate power supply means and a motor.
Moreover, since a separate power source is not supplied, the energy
efficiency of the vacuum cleaner having an attached floor cloth can
be increased.
BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The aforementioned object and characteristic of the present
invention will be more apparent by describing a preferred
embodiment of the present invention with reference to the
accompanying drawings, in which:
[0017] FIG. 1 is an exploded perspective view of a brush for a
vacuum cleaner according to the present invention;
[0018] FIG. 2 is a cutaway plan view of a brush for a vacuum
cleaner according to the present invention;
[0019] FIG. 3 is a partial perspective view of a power transferring
gear mechanism;
[0020] FIG. 4 is an exploded perspective view showing the
connection of a power transferring gear of the present invention
and a rotating gear.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0021] Hereinafter, a preferred embodiment of the present invention
will be described in greater detail with reference to the
accompanying drawings.
[0022] FIG. 1 is an exploded perspective view of a brush for a
vacuum cleaner of the present invention. As shown, the vacuum
cleaner brush of the present invention having an attached floor
cloth has an upper case 18 and a lower case 20 and a turbine 10 is
rotatable around turbine axes 13 and disposed around the supporting
bar 26 inside the upper and lower cases. In addition, a pair of
worm gears 12 is orthogonally engaged with a pair of worm wheels 14
at each side of the turbine axes 13 in order to transfer power. A
hollow shaft 16 is attached at the bottom face of each worm wheel
14 and is connected with a pair of rotating bodies 29 on the
underside of the lower brush case 20 having an attached floor cloth
22, the connection being effected through a pair of bushes 28
formed on the lower brush case 20. An air guide 15 is established
in front of the turbine 10 for guiding external air into the
turbine 10.
[0023] The external air flown in through the air suction port 24
positioned in front part of the lower brush case 20 is concentrated
as it passes through the air guide 15 and causes the turbine 10 to
rotate. Accordingly, the pair of worm gears 12 connected with the
turbine axis 13 at each sides of the turbine rotates and the torque
is orthogonally transferred to the pair of worm wheels 14 engaging
the worm gear 12. The rotating body 29, to which floor cloth 22
disposed on the underside the lower brush case 20, is connected
with the hollow shaft 16 connected with the bottom of the worm
wheel 14 so as to remove stain and stubborn dirt off the floor
while rotating.
[0024] FIG. 2 is a cutaway plan view of a brush for a vacuum
cleaner according to the present invention. The arrows shown in
FIG. 2 indicate the flow of air during operation. In other words,
the external air sucked through the air suction port 24 centralizes
and is compressed as it passes through the air guide 15, as is
indicated by the arrows in the drawing, and rotates the turbine 10
and finally flows out through the extension pipe 36 of the vacuum
cleaner.
[0025] FIG. 3 is a partial perspective view of the power
transferring gear mechanism. As shown in FIG. 3, as the external
air hits the turbine wings 11 and causes the turbine 10 to rotate,
the worm gear 12 connected with the turbine axis 13 rotates and the
worm wheel 14 engaged with the turbine axis 13 also rotates,
thereby transferring the torque towards the bottom.
[0026] FIG. 4 is an exploded perspective view showing the
connection of a power transferring gear according to the present
invention and a rotating body. The hollow shaft 16 of the worm
wheel 14 is disposed being inserted inside the extension pipe 27 on
the top of the rotating body 29. When the worm wheel 14 forced by
the power received from the worm gear 12 rotates, the hollow shaft
16 connected to the bottom of the worm wheel 14 correspondingly
rotates and accordingly the extension pipe 27 of the rotating body
29 connected to the hollow shaft 16 rotates and therefore the
impure substances or stubborn stains on the floor is removed
through the action of the rotation of the cloth 22 attached to the
wheels 29 (FIG. 1).
[0027] The present invention is not limited to the above-described
preferred embodiment and may be modified in various ways without
changing the scope of the present invention.
[0028] That is, not only a worm and worm wheel but also a bevel
gear may be used for power transferring means.
[0029] Although the preferred embodiments of the present invention
have been described, it will be understood by those skilled in the
art that the present invention should not be limited to the
described preferred embodiments. Various changes and modifications
can be made within the spirit and scope of the present invention as
defined by the appended claims.
* * * * *