GB2392828A - Bearing arrangement for vacuum cleaner brush roller - Google Patents
Bearing arrangement for vacuum cleaner brush roller Download PDFInfo
- Publication number
- GB2392828A GB2392828A GB0300028A GB0300028A GB2392828A GB 2392828 A GB2392828 A GB 2392828A GB 0300028 A GB0300028 A GB 0300028A GB 0300028 A GB0300028 A GB 0300028A GB 2392828 A GB2392828 A GB 2392828A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drum
- bearing
- housing
- rotary brush
- holder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/02—Nozzles
- A47L9/04—Nozzles with driven brushes or agitators
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/02—Nozzles
- A47L9/04—Nozzles with driven brushes or agitators
- A47L9/0461—Dust-loosening tools, e.g. agitators, brushes
- A47L9/0466—Rotating tools
- A47L9/0477—Rolls
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/02—Nozzles
- A47L9/04—Nozzles with driven brushes or agitators
- A47L9/0455—Bearing means therefor
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B13/00—Brushes with driven brush bodies or carriers
- A46B13/001—Cylindrical or annular brush bodies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nozzles For Electric Vacuum Cleaners (AREA)
Abstract
A rotary brush 100 for a vacuum cleaner includes a cylindrical drum 110 mounted in a housing via a bearing 120 which comprises inner 121 and outer 122 races, said bearing being press-fitted into an open end 112 of said drum and engaging on its inner race with a support member 130. The support member has one protrusion 132 engaging with said bearing, another protrusion 133 which is fixed into a corresponding recess on the housing for the brush, and a portion 131 which provides covering for the bearing, to keep it free from dirt. A metallic member may be inserted in the support member for additional strength. The brush roller may be rotated by means of a driven belt provided at one side 113 of the drum.
Description
--a 2392828 l ROTARY BRUSH FOR VACUUM CLEANER
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates generally to a vacuum cleaner, and more particularly, to a rotary brush for vacuum cleaner having simplified structure.
2. Background of the Related Art
Generally, a vacuum cleaner is an apparatus for sucking dust and contaminants off of a surface to be cleaned using high vacuum pressure generated inside the device. FIG. 1 shows an upright type vacuum cleaner as an example of a conventional vacuum cleaner.
As shown in FIG. 1, a conventional vacuum cleaner includes a body 10 comprising a dust-collecting chamber having a dust bag disposed inside the body 10 and sealed by a cover 11, a motor driving chamber 12, in which a motor is disposed, and a brush assembly 20 having a suction port.
In the case of such an upright type vacuum cleaner, when the motor is driven and suction force is generated, dust and contaminants on the surface to be cleaned are sucked in with the external air through the suction port of the -1
brush assembly 20 and are collected in the dust bag in the dustcollecting chamber. Meanwhile, the brush assembly 20 has a rotary brush 30 for removing contaminants that are deeply embedded in a carpet or a floor. The rotary brush 30 is rotatably disposed in a housing 21 of the brush assembly 20 and rotated by a driving belt 22.
FIG. 2 is an exploded, perspective view schematically showing a rotary brush of a conventional vacuum cleaner.
As shown in FIGS. 2 and 3, the rotary brush 30 for a conventional vacuum cleaner comprises a drum 31 on which bristles 32 are spirally disposed, a bearing holder 34 press-fit in the groove 33 formed at an end of the drum 31, a bearing 36 press-fit in the bearing holder 34 while a washer 35 is interposed between the bearing 36 and the bearing holder 34, a rotary shaft 37 penetrating the drum 31 and having an end thereof connected to the bearing 36, and a drum holder 38 connected to an end of the rotary shaft 37.
The drum holder 38 is fixed to the housing 21 and a connection hole 39 is formed at the center of the drum holder 38 for the rotary shaft 37 to be inserted therein. The bearing 36 has an outer race 36b press-fit into the bearing holder -2
34, and the rotary shaft 37 is press-fit within the inner race 36a, which is rotating relative to the outer race 36b.
Accordingly, the drum holder 38, the rotary shaft 37, and the inner race 36a of the bearing 36 are fixed relative to the housing 21 and the outer race 36b, the bearing holder 34 and the drum 31 rotate as a unified assembly relative to the inner race 36a.
The drum 31 has a belt connecting portion 31a at one side of the outer circumference. The driving belt 22 (FIG. 1), driven by a motor, is connected to the belt connecting portion 31a.
However, such a conventional rotary brush 30 requires many parts and therefore the number of operations necessary for assembling components and manufacturing costs increase. In addition, there is strong possibility of defects caused by the complex structure.
SUMMARY OF THE INVENTION
One object of the present invention is to solve the foregoing problems by providing a rotary brush for a vacuum cleaner having fewer number of parts, a simple structure and a reduction in the manufacturing costs and in the possibility of defects.
The foregoing and other objects and advantages are realized by providing a rotary brush for a vacuum cleaner comprising a drum rotatably supported in a housing of a brush assembly and provided with bristles on an outer circumference thereof, a bearing, including outer and inner races, and having the outer race press-fit in a groove formed at an open end of the drum, and a drum holder having one side connected relative to the housing and other side supporting the inner race for the drum to be rotatably supported within the housing.
In the present invention having the above structure, it is preferable that the drum holder has covering portion covering the open end of the drum for preventing contaminants from entering into the bearing.
In addition, it is preferable that a supporting portion press-fit in the inner race of the bearing is provided on a proximal, inwardly facing surface of the drum holder and a supplementary metallic member is inserted into the supporting portion.
Moreover, it is preferable that a fixing protrusion provided on a distal, outwardly facing surface of the holder is inserted and fixed in a receiving recess formed on the housing.
It is preferable that the drum holder comprises a cover covering an open end of the drum for preventing contaminants from entering into the bearing, and
a supporting shaft having one end passing through the cover and press-fit into the receiving recess formed on the housing and another end press-fit into the inner race of the bearing.
It is preferable that a belt-connecting portion is connected with a driving belt for rotating the drum and is provided at one side of the outer circumference of the drum.
Additional advantages, objects, and features of the invention will be set forth in part in the following description and in part will become apparent to
those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and advantages of the invention may be realized and attained as particularly pointed out in the appended claims.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will be described in detail with reference to the following drawings, in which like reference numerals refer to like elements, wherein: FIG. 1 is a partially cut-away, perspective view showing a general upright type vacuum cleaner; -5
FIG. 2 is an exploded perspective view showing a rotary brush for a conventional vacuum cleaner; FIG. 3 is a detailed sectional view showing the rotary brush of FIG. 2, fully assembled; FIG. 4 is an exploded perspective view showing a rotary brush for a vacuum cleaner according to a preferred embodiment of the present invention; FIG. 5 is a detailed sectional view showing the rotary brush of FIG. 4, fully assembled; FIG. 6 is an exploded perspective view showing a rotary brush for a vacuum cleaner according to another embodiment of the present invention; and FIG. 7 is a detailed sectional view of the rotary brush of FIG. 6, fully assembled. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
The following detailed description will present a rotary brush for a vacuum
cleaner according to the preferred embodiments of the invention in reference to the accompanying drawings.
-6
As shown in FIG. 4 or FIG. 5, a rotary brush 100 for a vacuum cleaner according to one embodiment of the present invention comprises a drum 110, a bearing 120, and a holder 130.
The drum 110 has bristles 111 spirally disposed on the outer circumference and a groove 112 formed at both ends. Additionally, at one side of the outer circumference of the drum 110, a belt-connecting portion 113 is formed. A driving belt 22 (Fig. 1), driven by a motor, is connected to the belt-connecting portion 113.
The bearing 120 is structured to include the inner race 121 and the outer race 122. The outer race 122 of the bearing is press-fit in the groove 112 of the drum 110. Accordingly, the drum 110 rotates around the inner race 121 together with the outer race 122.
The holder 130 has a cover portion 131 having a diameter larger than the outer diameter of the end of the drum 110, a supporting portion 132 centrally disposed in the inwardly facing, proximal surface of the cover portion 131, and a fixing protrusion 133 provided on the outwardly facing, distal surface of the covering portion 131. The holder 130 enables the drum 110 to be rotatably supported in the housing 21 since the fixing protrusion 133 is press-fit into the receiving recess 23 of the housing 21 and the supporting portion 132 is press-fit -7
into the inner race 121 of the bearing 120 disposed in the drum 110. In order words, the holder 130 and the inner race 121 of the bearing 120 are fixed relative to the housing 21 and the outer race 122 of the bearing 120 and the drum 110 rotate around the inner race 121. A metallic supplementary member 134 is preferably inserted inside the supporting portion 132 for preventing the holder 130 from being deformed by the load produced during the rotation of the drum 110.
In the present invention having the above-described structure, if a motor is driven during cleaning, the driving belt 22 (FIG. 1) connected to the belt-connecting portion 113 of the drum 110 rotates the drum 110. At this time, the outer race 122 of the bearing 120 and the drum 110 rotates around the inner race 121 of the bearing 120.
Meanwhile, since the cover portion 131 of the holder 130 covers the open end of the drum 110, contaminants rising as a result of the rotation of the drum 110 can be prevented from entering into the groove 112.
FIGS. 6 and 7 show another embodiment of the present invention. In FIGS. 6 and 7, the structure of the drum 110 and the bearing 120 is essentially identical to those in the above-described preferred embodiment, except for the structure of the holder 140. In this embodiment, the holder 140 includes a -8
cover 141 having an inserting hole 142 and a supporting shaft 143 having a protrusion 144 at one end. One end of the supporting shaft 143 is pressfit into the inner race 121 of the bearing 120 after passing through the inserting hole 142 of the cover 141 and the other end of the supporting shaft 143 is press-fit into the receiving recess 23 formed on the housing 21. Therefore, the inner race 121 of the bearing 120 and the supporting shaft 143 is fixed in the housing 21, and the drum 110 and the outer race 122 of the bearing 120 rotates around the inner race 121. The cover 141 covers the open end of the drum 100, thereby preventing contaminants from entering into the groove 112 of the drum 110 in which the bearing 120 is disposed.
According to the embodiment of the present invention set forth above, the holder fixed in the housing supports the inner race of the bearing disposed at the end of the drum, thereby providing a rotary brush for a vacuum cleaner having a reduced number of working parts and operations, and manufacturing costs are also reduced.
Moreover, the rotary brush for a vacuum cleaner according to the present invention has a simpler structure and therefore the possibility of defects in the moving parts may be reduced.
While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes in the form and details may be made therein without departing from the scope of the invention, as defined by the appended claims.
The foregoing embodiments and advantages are merely exemplary and are not to be construed as limiting the present invention. The present teaching can be readily applied to other types of apparatuses. The description of the present
invention is intended to be illustrative, and not to limit the scope of the claims.
Many alternatives, modifications, and variations will be apparent to those skilled in the art.
Each feature disclosed in this specification (which term includes the
claims) and/or shown in the drawings may be incorporated in the invention independently of other disclosed and/or illustrated features.
Statements in this specification of the "objects of the invention" relate to
preferred embodiments of the invention, but not necessarily to all embodiments of the invention falling within the claims. Reference numerals appearing in the claims are illustrative only and the claims shall be interpreted as if they are not present. -10
The description of the invention with reference to the drawings is by way
of example only.
The text of the abstract filed herewith is repeated here as part of the specification.
A rotary brush for a vacuum cleaner comprises a drum rotatably supported in a housing of a brush assembly and provided with bristles on outer circumference, a bearing including outer and inner races and having the outer race press-fit in a groove formed at an end of the drum, and a holder having one side connected with the housing and another side supporting the inner race for the drum to be rotatably supported in the housing. According to the present invention having the above-described structure, the number of parts can be reduced, thereby reducing the number of moving parts and also reducing the manufacturing costs.
-11
Claims (8)
1. A rotary brush assembly for insertion into a housing of a vacuum cleaner comprising: a drum, rotatably supported in the housing of the brush assembly, provided with bristles along an outer circumference; a bearing, including outer and inner races, having the outer race press-fit in a groove formed at an open end of the drum; and a drum holder having one side connected to the housing and another side supporting the inner race of the drum to be rotatably supported in the housing.
2. The rotary brush according to claim 1, wherein the drum holder further comprises a covering portion covering the end of the drum for preventing contaminants from entering into the bearing.
3. The rotary brush according to claim 1, wherein a supporting portion press-fit in the inner race of the bearing is provided on inwardly facing, proximal surface of the holder.
4. The rotary brush according to claim 3, wherein a supplementary metallic member is inserted into the supporting portion.
-12
5. The rotary brush according to claim 1, wherein a fixing protrusion provided on a distal, outwardly facing surface of the holder is inserted and fixed in a receiving recess formed in the housing.
6. The rotary brush according to claim 1, wherein the holder comprises: a cover covering an open end of the drum for preventing contaminants from entering into the bearing; and a supporting shaft having one end passing through the cover and press-fit into the receiving recess formed on the housing and another end press-fit into the inner race of the bearing.
7. The rotary brush for a vacuum cleaner according to claim 1, wherein a belt connecting portion connected with a driving belt for rotating the drum is provided at one side of the outer circumference of the drum.
8. A rotary brush assembly for insertion into a housing of a vacuum cleaner, substantially as hereinbefore described with reference to and as shown in Figures 4 and 5 or Figures 6 and 7 of the accompanying drawings.
-13
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2002-0054624A KR100466320B1 (en) | 2002-09-10 | 2002-09-10 | Rotary brush for vacuum cleaner |
Publications (3)
Publication Number | Publication Date |
---|---|
GB0300028D0 GB0300028D0 (en) | 2003-02-05 |
GB2392828A true GB2392828A (en) | 2004-03-17 |
GB2392828B GB2392828B (en) | 2004-10-27 |
Family
ID=19720680
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0300028A Expired - Fee Related GB2392828B (en) | 2002-09-10 | 2003-01-02 | Rotary brush for vacuum cleaner |
Country Status (5)
Country | Link |
---|---|
US (1) | US20040045125A1 (en) |
KR (1) | KR100466320B1 (en) |
AU (1) | AU2003200005A1 (en) |
CA (1) | CA2413403A1 (en) |
GB (1) | GB2392828B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2419517A (en) * | 2004-10-29 | 2006-05-03 | Samsung Kwangju Electronics Co | Vacuum cleaner nozzle brush assembly |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7749292B2 (en) * | 2006-11-16 | 2010-07-06 | Suzhou Clean Bloom Electric Co., Ltd. | Cyclonic dust collecting apparatus |
US8826493B2 (en) | 2011-02-15 | 2014-09-09 | The Scott-Fetzer Company | Vacuum cleaner brushroll |
KR20130005135A (en) * | 2011-07-05 | 2013-01-15 | 삼성전자주식회사 | Upright cleaner |
US9955832B2 (en) | 2015-01-30 | 2018-05-01 | Sharkninja Operating Llc | Surface cleaning head with removable non-driven agitator having cleaning pad |
US9456723B2 (en) | 2015-01-30 | 2016-10-04 | Sharkninja Operating Llc | Surface cleaning head including openable agitator chamber and a removable rotatable agitator |
AU2016211450B2 (en) * | 2015-01-30 | 2020-08-20 | Sharkninja Operating Llc | Surface cleaning head including openable agitator chamber and removable agitators for use therein |
US11607095B2 (en) | 2015-01-30 | 2023-03-21 | Sharkninja Operating Llc | Removable rotatable driven agitator for surface cleaning head |
US9655486B2 (en) | 2015-01-30 | 2017-05-23 | Sharkninja Operating Llc | Surface cleaning head including removable rotatable driven agitator |
US10076183B2 (en) | 2015-08-14 | 2018-09-18 | Sharkninja Operating Llc | Surface cleaning head |
US10702108B2 (en) | 2015-09-28 | 2020-07-07 | Sharkninja Operating Llc | Surface cleaning head for vacuum cleaner |
US11647881B2 (en) | 2015-10-21 | 2023-05-16 | Sharkninja Operating Llc | Cleaning apparatus with combing unit for removing debris from cleaning roller |
KR102285854B1 (en) | 2015-10-21 | 2021-08-05 | 샤크닌자 오퍼레이팅 엘엘씨 | surface cleaning head |
US10512384B2 (en) | 2016-12-15 | 2019-12-24 | Irobot Corporation | Cleaning roller for cleaning robots |
US10925454B2 (en) * | 2017-04-20 | 2021-02-23 | Lg Electronics Inc. | Vacuum cleaner |
US11202542B2 (en) | 2017-05-25 | 2021-12-21 | Sharkninja Operating Llc | Robotic cleaner with dual cleaning rollers |
US10595624B2 (en) | 2017-07-25 | 2020-03-24 | Irobot Corporation | Cleaning roller for cleaning robots |
US11992172B2 (en) | 2018-10-19 | 2024-05-28 | Sharkninja Operating Llc | Agitator for a surface treatment apparatus and a surface treatment apparatus having the same |
WO2020081931A1 (en) | 2018-10-19 | 2020-04-23 | Sharkninja Operating Llc | Agitator for a surface treatment apparatus and a surface treatment apparatus having the same |
US11109727B2 (en) | 2019-02-28 | 2021-09-07 | Irobot Corporation | Cleaning rollers for cleaning robots |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2278998A (en) * | 1993-06-14 | 1994-12-21 | Hoover Co | Vacuum cleaner with performance indicator |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2092581A (en) * | 1931-07-18 | 1937-09-07 | Hoover Co | Suction cleaner |
US2037648A (en) * | 1935-02-26 | 1936-04-14 | B F Sturtevant Company Inc | Vacuum sweeper |
US2740985A (en) * | 1949-11-10 | 1956-04-10 | Hoover Co | Agitator structure for cleaning devices |
US2785431A (en) * | 1953-09-22 | 1957-03-19 | Scott & Fetzer Co | Removable brush roll for vacuum cleaners |
US4905341A (en) * | 1985-09-20 | 1990-03-06 | Hitachi, Ltd. | Upright-type electric vacuum cleaner |
JPH04122333A (en) * | 1990-09-14 | 1992-04-22 | Tokyo Electric Co Ltd | Rotary brush fixture construction of vacuum cleaner suction port |
US5452490A (en) * | 1993-07-02 | 1995-09-26 | Royal Appliance Mfg. Co. | Brushroll with dual row of bristles |
KR100208136B1 (en) * | 1997-07-22 | 1999-07-15 | 최진호 | Up-right type vacuum cleaner |
KR19990031402U (en) * | 1997-12-30 | 1999-07-26 | 최진호 | Edge data installation structure of suction port for upright cleaner |
DE19820628C1 (en) * | 1998-05-08 | 1999-09-23 | Kaercher Gmbh & Co Alfred | Roller mounting or carpet sweeper |
KR200357161Y1 (en) * | 1999-03-19 | 2004-07-23 | 삼성광주전자 주식회사 | Brush of a vacuum cleaner |
KR200358817Y1 (en) * | 1999-06-28 | 2004-08-12 | 삼성광주전자 주식회사 | Brush drum assembly for a suction head of a vacuum cleaner |
KR100325010B1 (en) * | 2000-01-28 | 2002-02-20 | 이충전 | A drum brush of suction device for vacuum cleaner up-right |
US20030145424A1 (en) * | 2002-02-01 | 2003-08-07 | Royal Appliance Mfg. Co. | Two-piece brushroll |
-
2002
- 2002-09-10 KR KR10-2002-0054624A patent/KR100466320B1/en not_active IP Right Cessation
- 2002-11-14 US US10/294,338 patent/US20040045125A1/en not_active Abandoned
- 2002-12-03 CA CA002413403A patent/CA2413403A1/en not_active Abandoned
-
2003
- 2003-01-02 AU AU2003200005A patent/AU2003200005A1/en not_active Abandoned
- 2003-01-02 GB GB0300028A patent/GB2392828B/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2278998A (en) * | 1993-06-14 | 1994-12-21 | Hoover Co | Vacuum cleaner with performance indicator |
Non-Patent Citations (1)
Title |
---|
JP 2000254052 (KOWA)19.09.2000 (see figure 6 and WPI abstract accession no. 2000-624388 [60]). * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2419517A (en) * | 2004-10-29 | 2006-05-03 | Samsung Kwangju Electronics Co | Vacuum cleaner nozzle brush assembly |
GB2419517B (en) * | 2004-10-29 | 2006-11-22 | Samsung Kwangju Electronics Co | A brush assembly and a vacuum cleaner having the same |
Also Published As
Publication number | Publication date |
---|---|
GB0300028D0 (en) | 2003-02-05 |
AU2003200005A1 (en) | 2004-03-25 |
CA2413403A1 (en) | 2004-03-10 |
GB2392828B (en) | 2004-10-27 |
US20040045125A1 (en) | 2004-03-11 |
KR100466320B1 (en) | 2005-01-14 |
KR20040023013A (en) | 2004-03-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20110102 |