AU2004237799A1 - Suction brush for vacuum cleaner - Google Patents
Suction brush for vacuum cleaner Download PDFInfo
- Publication number
- AU2004237799A1 AU2004237799A1 AU2004237799A AU2004237799A AU2004237799A1 AU 2004237799 A1 AU2004237799 A1 AU 2004237799A1 AU 2004237799 A AU2004237799 A AU 2004237799A AU 2004237799 A AU2004237799 A AU 2004237799A AU 2004237799 A1 AU2004237799 A1 AU 2004237799A1
- Authority
- AU
- Australia
- Prior art keywords
- bottom plate
- brush
- cover
- suction
- plate
- 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
- 239000000428 dust Substances 0.000 claims description 12
- 230000000295 complement effect Effects 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 description 53
- 238000006748 scratching Methods 0.000 description 4
- 230000002393 scratching effect Effects 0.000 description 4
- 239000000356 contaminant Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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
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- 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
- A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
-
- 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
- A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
- A47L9/0606—Nozzles with fixed, e.g. adjustably fixed brushes or the like rigidly anchored brushes, combs, lips or pads
- A47L9/0613—Nozzles with fixed, e.g. adjustably fixed brushes or the like rigidly anchored brushes, combs, lips or pads with means specially adapted for picking up threads, hair or the like, e.g. brushes, combs, lint pickers or bristles pads
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- 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
- A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
- A47L9/0633—Nozzles with fixed, e.g. adjustably fixed brushes or the like with retractable brushes, combs, lips or pads
- A47L9/064—Nozzles with fixed, e.g. adjustably fixed brushes or the like with retractable brushes, combs, lips or pads actuating means therefor
- A47L9/0653—Nozzles with fixed, e.g. adjustably fixed brushes or the like with retractable brushes, combs, lips or pads actuating means therefor with mechanical actuation, e.g. using a lever
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nozzles For Electric Vacuum Cleaners (AREA)
Description
S&F Ref: 700770
AUSTRALIA
PATENTS ACT 1990 COMPLETE SPECIFICATION FOR A STANDARD PATENT Name and Address of Applicant Actual Inventor(s): Address for Service: Invention Title: Samsung Gwangju Electronics Co., Ltd., of 271, Oseondong, Gwangsan-gu, Gwangju-city, Republic of Korea (South) Kyoung-woung Kim Spruson Ferguson St Martins Tower Level 31 Market Street Sydney NSW 2000 (CCN 3710000177) Suction brush for vacuum cleaner The following statement is a full description of this invention, including the best method of performing it known to me/us:- 5845c -1- SSUCTION BRUSH FOR VACUUM CLEANER o00 Field of the Invention The present invention concerns a vacuum cleaner. More particularly, the present invention concerns an improved suction brush that adjusts to different characteristics of a cleaning surface, such as a carpet or floor, so as to enhance cleaning efficiency and accuracy.
Background of the Invention A vacuum cleaner generally draws in dust and contaminants on a cleaning surface using a suction force generated by the driving of a vacuum source disposed in a body of the vacuum cleaner. Referring to HFIG. 1, the vacuum cleaner includes a cleaner body 10, a suction brush 30, and an extension path 20. The cleaner body 10 accommodates a motor (not shown) generating the suction force, and the suction brush 30 is provided with an inlet 39 which faces the cleaning surface and through which dust is drawn. The dust drawn in through the suction brush 30 flows through the extension path 20 which leads to the cleaner body The suction brush 30 includes an upper housing 34 and a lower housing 38 coupled by a plurality of bolts 40. The inlet 39 is formed at the lower housing 38, through which the dust is drawn in from the cleaning surface. The extension path 20 includes a connector 26 rotatably fit into the suction brush 30, an extension pipe 24 that fits with the connector 26, and a suction hose 22 that fits in the extension pipe 24 at one end and connects with the cleaner body 10 at the other end.
As structured and configured as above, the vacuum cleaner draws in dust and contaminants from the cleaning surface, such as a carpet or floor, while a user of the vacuum cleaner moves the suction brush 30 back and forth. However, when the suction brush 30 is moved backward, the rear end of the suction brush 30 is often lifted or spaced from the cleaning surface.
With the rear end of the suction brush 30 spaced from the cleaning surface, the bottom of the lower housing 38 cannot closely contact the cleaning surface, thus bringing about loss of the suction force and deterioration of the cleaning accuracy. Also, when using the vacuum cleaner, the bottom of the lower housing 38 often directly contacts the cleaning surface, such as a floor, and thus scratches the floor.
[R:\LIBLL] I 6325.doc KEH U In addition, since a plurality of bolts 40 are required to couple the upper housing 34 and the lower housing 38, the manufacture costs are increased and productivity decreased due to the O) increased number of parts and required assembly.
Object of the Invention It is an object of the present invention to overcome or ameliorate some of the disadvantages of the prior art, or at least to provide a useful alternative.
Summary of the Invention There is preferably provided an improved suction brush for a vacuum cleaner to enhance cleaning accuracy and cleaning efficiency by closely contacting a bottom plate with the cleaning surface during the cleaning operation.
The present invention at least in a preferred embodiment provides an improved suction brush for a vacuum cleaner, which is capable of preventing a bottom plate from scratching the floor during the cleaning operation.
Yet another aspect of the present invention preferably provides a suction brush for a vacuum cleaner providing improved assembly without employing fastening members, such as bolts.
Preferably, there is provided a suction brush for a vacuum cleaner having a cover, and a bottom plate having a suction port through which dust is drawn in from a surface being cleaned by a suction force generated by a vacuum source disposed in a body of the vacuum cleaner. The bottom plate is rotatably disposed at the cover.
The suction brush further preferably comprises an elastic member disposed between the bottom plate and the cover so as to elastically bias an end of the bottom plate in a predetermined direction.
The suction brush further preferably comprises a bottom plate stopper disposed on at least one of the bottom plate and the cover to limit the rotation of the bottom plate. Accordingly, the bottom plate rotates within a predetermined angle.
The suction brush further preferably comprises a bottom plate fixing unit disposed between the cover and the bottom plate to selectively fix the bottom plate to the cover. The bottom [RALIBLL 16325.doc:KEH -3plate fixing unit has a foot switch rotatably disposed in the cover, an operation knob exposed to the
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outside through an opening in the cover, a first locking part, a brush plate rotatably disposed in the cover to rotate in association with the foot switch, and a second locking part to lock and unlock the 00 O brush plate with the first locking part in a complementary manner.
Consistent with the above aspect of the present invention, the suction brush for the vacuum cleaner has a cover, a bottom plate rotatably disposed at the cover, and a bottom plate fixing Mc, unit disposed between the cover and the bottom plate. The bottom plate fixing unit has a foot switch rotatably disposed in the cover and a brush plate rotatably disposed in the cover to rotate in association with the foot switch. The foot switch has an operation knob exposed to the outside so that the user can rotate the foot switch. A first locking part is formed on both ends of the foot switch.
A second locking part is formed at the brush plate in correspondence with the first locking part.
When the second locking part rotates in association with the rotation of the first locking part, the brush disposed at a front part of the brush plate protrudes with respect to the cover. An elastic member is interposed between the front part of the brush plate and the bottom plate so as to press together the front part of the brush plate and the bottom plate.
The user can select a rotation mode and a stationary mode of the bottom plate through the operation knob. If the user selects the rotation mode, the front end of the bottom plate is biased downwardly by the elastic member and the rear end is supported by the bottom plate stopper. When a rear side of the suction brush separates apart from the cleaning surface, the bottom plate rotates and closely contacts the cleaning surface due to the suction force between the cleaning surface and the bottom plate and the force applied on the suction brush by the user.
When the user selects the stationary mode and rotates the foot switch by using the operation knob, the first locking part presses downward onto the second locking part so as to rotate the brush plate downwardly. The brush at the front end of the brush plate protrudes downwardly from the bottom plate. Since the suction brush is supported by a wheel at the rear end and the brush, the cleaning is performed with a predetermined gap from the cleaning surface. Accordingly, the cleaning surface, such as a floor, is not scratched. In addition, as the brush plate rotates downward, the elastic member presses the front end of the bottom plate downwardly. Thus, the front end of the bottom plate is supported by the elastic member, and the bottom plate stopper at the rear end of the bottom plate is supported by the end of brush plate support ribs formed at the cover so that the bottom plate is fixed with respect to the cover.
(R:\LIBLL] 16325.doc:KEH -4- SThe foot switch, the brush plate, and the bottom plate, respectively, have a rotary axis. The cover is provided with support ribs having an axis hole corresponding to the rotary axis. The rotary 00 axis and the support ribs are sloped so that the rotary axis is smoothly inserted into the axis hole. As constructed above, the assembly of the suction brush is improved and the number of the parts is reduced without having to use additional fastening means, such as bolts.
Brief Description of the Drawing Figures SThese and/or other aspects and advantages of the invention will become apparent and more readily appreciated from the following description of exemplary embodiments, taken in conjunction with the accompanying drawing figures of which: FIG. 1 is a perspective view of a conventional vacuum cleaner; FIG. 2 is a perspective view of a suction brush of a vacuum cleaner according to an embodiment of the present invention, showing the suction brush assembled; FIG. 3 is an exploded view of the suction brush of the vacuum cleaner illustrated in FIG.
2; FIGS. 4A and 4B are partial elevational views, respectively, of the suction brush taken in section along the lines 4A-4A and 4B-4B of FIG. 3; FIG. 5 is a perspective view of the bottom plate of the suction brush illustrated in FIG. 3; FIG. 6 is an elevational view of the suction brush taken in section along the line VI-VI of FIG. 3; FIG. 7 is an elevational view of the suction brush taken in section along the line VII-VII of FIG. 3; FIGS. 8A and 8B are side elevational views of the suction brush of the vacuum cleaner with a portion of the suction brush removed according to an embodiment of the present invention; and FIGS. 9A and 9B are side elevational views of the suction brush of the vacuum cleaner with a portion of the suction brush removed according to an embodiment of the present invention.
[R:\LIBLL] 16325.doc:KEH SDetailed Description of the Preferred Embodiments 00 Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals Srefer to the like elements throughout. The embodiments are described below in order to explain the present invention by referring to the drawings.
SReferring to FIGS. 2 and 3, a suction brush for a vacuum cleaner according an exemplary embodiment of the present invention includes a cover 100 forming a upper casing, a bottom plate C 150 rotatably fixed under the cover 100, a bottom plate fixing unit 300, a wheel 418, and a wheel shaft 420. The bottom plate fixing unit 300 is rotatably disposed between the cover 100 and the bottom plate 150. The unit 300 allows selection between rotating or fixating of the bottom plate 150 depending on the type of a cleaning surface, such as a carpet or a floor. The wheel 418 and the wheel shaft 420 are rotatably fixed to a rear end 102 of the cover 100.
The cover 100 is provided with a first bottom plate rotary axis 152 for fixing the bottom plate 150 at the inner sidewalls of the cover 100. Two second bottom plate support ribs 157 are provided with a second bottom plate axis hole 158 corresponding to a second bottom plate rotary axis 156 (FIG. The second bottom plate rotary axes 156 are positioned coaxially with respect to the first bottom plate rotary axis 152. A suction duct 108 is formed between the second bottom plate support ribs 157, and is in fluid communication with an extension pipe connector 500. An opening 104 is formed at an upper side of the cover 100 for receiving an operation knob 314. Four brush plate support ribs 384 are formed in the cover 100 for rotatably fixing a brush plate 350. Each brush plate support rib 384 is provided with a brush plate axis hole 380 (FIG. 4B). Two foot switch support ribs 336 are formed in the front of the brush plate support rib 384 for rotatably fixing a foot switch 310 to the cover 100. Each foot switch support rib 336 is provided with a foot switch axis hole 334 into which a foot switch rotary axis 330 is inserted, which will be described below. At the rear end of the cover 100, a wheel receiving part 400 is formed for receiving the extension pipe connector 500 and the wheel 418. The wheel receiving part 400 is provided with a wheel shaft hole 410 for a lateral insertion of the wheel shaft 420. An axis hole (not shown) is formed at a front end of the extension pipe connector 500 corresponding to the wheel shaft hole 410. The wheel shaft 420 penetrates through the axis hole and the wheel shaft hole 410 so that the extension pipe connector 500 and the wheel 418 are rotatably fixed at the cover 100.
[R:\LIBLL] I 6325.doc: KEH -6- U Both sidewalls of the bottom plate 150 are provided with a first bottom plate axis hole 154 corresponding to the first bottom rotary axis 152. The first bottom plate axis hole 154 fits with the 00 frtbto oayai 5 omda h ne iea ftecvr10s st nbetebto fis0otmrtr xs12fme tteinrsdwl ftecvr10s st nbetebto plate 150 to rotate with respect to the cover 100. Accordingly, even when a rear side under the C 5 suction brush separates apart from the cleaning surface, the bottom plate 150 rotates with respect to the cover 100 in close contact with the cleaning surface. At the bottom of the bottom plate 150 is formed a dust transfer channel 172 leading to a suction port 176. A spacer 174 is disposed in front and in rear of the suction port 176 for keeping a space between the bottom plate 150 and the cleaning surface. A rubber lip mount part 160 (FIG. 5) is formed at the rear end under the bottom plate 150 on which a rubber lip 168 is mounted for sweeping dust and contaminants not drawn in to the suction port 176 but passing to the rear end.
The bottom plate fixing unit 300 includes the foot switch 3 10 rotatably fixed at the cover 100 and the brush plate 350 mounted in the cover 100 and under the foot switch 3 10 for rotating in association with the foot switch 3 The foot switch 3 10 is provided with the operation knob 314 at one end. The operation knob 314 is exposed through the opening 104 formed on the cover 100 so that the user of the vacuum cleaner can control the foot switch 3 10 from the outside. A first foot switch stopper 324 is formed at a rear end of the operation knob 314 for limiting excessive rotation of the foot switch 3 A first locking part 318 is formed at the other end of the foot switch 3 10 and extends downwardly fr-om the operation knob 314. The first locking part 318 is a rib extending downwardly from under the operation knob 314 at the other end of the foot switch 3 10. Each end of the foot switch 3 10 is provided with a foot switch rotary axis 330. The foot switch rotary axis 330 is inserted into the foot switch axis hole 334 of the cover 100 so that the foot switch 3 10 is rotatably fixed at the cover 100.
The foot switch rotary axis 330 has a slope S facilitating smooth insertion into the foot switch axis hole 334. A second foot switch stopper 328 is formed at a center of the foot switch 3 10 to link both ends of the foot switch 3 10 and to restrain the foot switch 3 10 from rotating in the other direction.
The second foot switch stopper 328 restrains the foot switch 3 10 from rotating in the other direction over a predetermined angle by contacting the suction duct 108 formed at the cover 100.
Two brush plate rotary axes 376 are formed at the rear end of the brush plate 350. The brush plate rotary axes 376 are inserted into the brush plate axis hole 380 (FIG. 4B) formed at the cover 100 so that the brush plate 350 is rotatably fixed at the cover 100. A pair of second locking [R:\LIBLLJ 16325.doc: KEH -7- Cl parts 358 are formed at the fr-ont of the brush plate rotary axes 376 and contact the first locking part 318. An elastic member receiving part 2 10 Is formed at the center of the fr-ont part of the brush plate 350 for receiving an elastic member 200. The elastic member 200 is preferably a coil spring, but 00 may be various elastic members with respective elasticities. The elastic member 200 is securely inserted into the elastic member receiving part 2 10 at one end, and is fixed at the front end of the bottom plate 150 at the other end so as to bias the bottom plate 150 in direction A. The fr-ont end of the brush plate 350 is provided with a brush mount part 368 for the mount of a brush 372. The brush 372 is mounted at the front end of the brush plate 350 and vertically moves with respect to the cover 100 depending on the rotation of the brush plate 350. The brush plate 350 rotates when the first locking part 318 presses and rotates the second locking part 358.
Refenring to FIG. 3, assembly of the suction brush is described according to an exemplary embodiment of the present invention. The foot switch 3 10 is fixed at the cover 100. The operation knob 314 of the foot switch 3 10 is inserted into the opening 104, and the foot switch rotary axis 330 is pressed and inserted into the foot switch axis hole 334 of the cover 100. Then, the brush plate 350 is fixed at the cover 100. The brush plate rotary axes 376 are pressed and inserted into the brush plate axis hole 3 80 (FIG. 4B) of the cover 100. The pair of the second locking part 358 of the brush plate 350 contacts the first locking part 318 of the foot switch 3 10 with the brush plate 350 being fixed. The elastic member 200 is inserted into the elastic member receiving part 210 of the brush plate 350. Finally, the bottom plate 150 is fixed at the cover 100. The fixation of the bottom plate 150 is accomplished by pressing and inserting the first bottom plate axis hole 154 and the second bottom plate rotary axes 156 into the first bottom rotary axis 152 and the second bottom plate axis hole 158, respectively. The elastic member 200 is pressed and contacts the front end of the bottom plate 150 with one end. Hence, the elastic member 200 biases the front end of the.bottom plate 150 to rotate in the other direction B and the rear end of the bottom plate 150 is biased by a bottom plate stopper 164 (FIG. As structured and assembled, the bottom plate 150 maintains a level position with the cleaning surface.
Referring to FIGS. 4A and 4B, the brush plate support ribs 384, the foot switch support ribs 336, the first bottom rotary axis 152, and the second bottom plate support ribs 157 each have a slope S. The slope S facilitates the smooth insertion of the rotary axes 152, 156, 330, and 376 into the corresponding axis holes 154, 158, 334, and 380 while the bottom plate fixing unit 300 (FIG. 3) is fixed at the cover 100.
[R:\LIBLL] I 6325.doe: KEH U Referring to FIG. 5, the two second bottom plate rotary axes 156 correspond to the first bottom plate axis holes 154 on the same axis. The suction port 176 is formed between the second 0 in. The suction port 176 fluidly communicates with the suction duct 108 (HIG. The rear end of C 5 the bottom plate 150 is provided with the rubber lip mount part 160 protruding upward. Both ends r- of the rubber lip mount part 160 are provided with the bottom plate stopper 164 restraining the bottom plate 150 from rotating in the other direction B over a predeternined angle. Prefer-ably, the rubber lip mount part 160 serves as the bottom plate stopper 164, but it is possible to apply variations to such structure and configuration using a separate member as long as the function of the i0 bottom plate stopper 164 is frulfilled. If the bottom plate 150 rotates to the other direction B over the predetermined angle, the bottom plate stopper 164 contacts the temiinal end of the brush plate support ribs 3 84 formed at the rear end 102 of the cover 100 (FIG. and thus the bottom plate 150 is restrained fr-om rotating further to the other direction B.
FIG. 6 illustrates the foot switch 3 10 in association with the brush plate 350. Referring to FIG. 6, the first locking part 3 18 rotates within a predetermined range by the operation knob 314 and between first and second positions P1 and P2. The first position P1 refers to a position of the first locking part 318 when the foot switch 310 is restrained from further rotation in one direction C. The foot switch 3 10 is restrained from rotating further in one direction C because the second foot switch stopper 328 (HIG. 3) contacts thle suction duct 108. The second position P2 refers to a position of the first locking part 318 when the foot switch 310 is restrained from further rotation in the other direction D. The foot switch 3 10 is restrained from rotating further to the other direction D because the first foot switch stopper 324 contacts the cover 100. The second locking part 358 includes a first contact part 360 contacting the first locking part 318 when the first locking part is at the first position P1, and a second contact part 362 contacting the first locking part 318 when the first locking part 318 is at the second position P2. The second contact part 362 is above the first contact part 360 so that the end of the first locking part 318, which is in contact with the first contact part 360, contacts the second contact part 362 when the first locking part 318 moves fr-om the first position P1 to the second position P2. The first locking part 318 presses downward onto the second locking part 358 so that the brush plate 350 rotates downwardly around the brush plate rotary axes 376.
FIG. 7 illustrates the wheel shaft 420 fixed at the cover 100. Referring to FIG. 7, one side of the wheel shaft 420 is provided with a locking projection 424 on the outer circumstance of the wheel shaft 420. A locing recess 414 is formed at an inner side of the wheel shaft hole 410 of the [R\LI BLL] I 6325.doc: KEH -9rear end of the cover 100 in correspondence with the locking projection 424. As shaped and
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configured above, the extension pipe connector 500 is inserted into the rear end of the cover 100 and Sthe wheel 418 is fixed in the wheel receiving part 400. Then, the wheel shaft 420 is inserted into the 00 O wheel shaft hole 410 formed at the cover 100 and the extension pipe connector 500 (FIG. thus rotatably fixing the extension pipe connector 500 and the wheels 418 at the cover 100. The locking projection 424 of the wheel shaft 420 is coupled to the locking recess 414 of the wheel shalt hole 410 of the cover 100. With this simple locking structure, the wheel 418 and the extension pipe connector 500 are rotatably connected to the suction brush. Thus, the assembly of the suction brush is improved and the number of the parts is reduced.
As seen in FIGS. 8A and 8B, the bottom plate 150 rotates in the rotation mode or is fixed in the stationary mode with respect to the cover 100. While cleaning on the cleaning surface, such as a carpet, a user operates the vacuum cleaner in the rotation mode because the bottom plate 150 is not in close contact with the cleaning surface since the rear end of the suction brush is spaced from the cleaning surface. Accordingly, the user selects the rotation mode to obtain the close contact of the bottom plate 150 with the cleaning surface. The bottom plate 150 rotates with respect to the cover 100 in the rotation mode even if the rear end of the suction brush is spaced from the cleaning surface. In contrast, the cleaning surface, such as a floor, may be scratched due to direct contact with the bottom plate 150. In order to maintain a proper gap between the bottom plate 150 and the cleaning surface to avoid scratching the user operates the vacuum cleaner in the stationary mode with the brush 372 extending downwardly from the front end of the suction brush and with the front end of the suction brush being against the cleaning surface and the rear end of the suction brush being supported by the wheel 418.
FIG. 8A illustrates the rotation mode of the bottom plate 150 with respect to the cover 100, and the FIG. 8B illustrates the stationary mode. Referring to FIG. 8A, the second foot switch stopper 328 (FIG. 3) is biased by the suction duct 108 (FIG. 3) and restrained from rotating to the other direction C (FIG. The first locking part 318 at the both ends of the foot switch 310 contacts the first contact part 360 of the second locking part 358 formed at the both sides of the brush plate 350.
The front end of the bottom plate 150 is biased downwardly by the elastic member 200 and the rear end is supported because contact of the bottom plate stopper 164 with the terminal end of the brush plate support ribs 384. The front end of the brush plate 350 is biased upwardly by the elastic member 200 and the rear end is supported since the first contact part 360 of the second locking part 358 is supported by the first locking part 318.
[R:\LLBLL] 16325.doc: KEH When operating the vacuum cleaner in the rotation mode over the cleaning surface such as a floor, the user presses the rear end of the operation knob 314 and changes to the stationary mode.
00 Still referring to FIGS. 8A and 8B, the first locking part 318 formed at the one end of the foot switch 310 and under the operation knob 314 rotates downward around the foot switch rotary axis 330. The first locking part 318 presses the second locking part 358 while moving from the first contact part 360 of the second locking part 358 to the second contact part 362. Thus, the brush plate 350 rotates CS downward around the brush plate rotary axes 376 so that the brush 372 moves and protrudes downward from under the bottom plate 150. The elastic member 200, which is disposed at the front end of the brush plate 350 and biases the brush plate 350 upwardly, is compressed due to the moment transferred from the first locking part 318. With the elastic member 200 compressed, the front end of the bottom plate 150 receives a larger recovery force facing downward at the rotation mode. Accordingly, the bottom plate 150 becomes stationary since the front end is biased by the compressed elastic member 200 with greater recovery force than the rotation mode, and the rear end is fixed since the bottom plate stopper 164 is supported by the terminal end of the brush plate support ribs 384. As a result, scratching of the floor is prevented in the stationary mode by the bottom plate 150.
FIGS. 9A and 9B are views of the bottom plate 150 rotating in the rotation mode. FIG. 9A illustrates that the rear end of the suction brush in complete contact with the cleaning surface. The bottom plate 150 is biased downward by the elastic member 200 at the front end, and is supported at the rear end by the bottom plate stopper 164 contacting the terminal end of the brush plate support ribs 384. Thus, the bottom plate 150 is level with the cleaning surface.
FIG. 9B illustrates that the rear end of the suction brush is spaced from the cleaning surface due to the rotation of the suction brush to a certain angle 0. The force applied on the suction brush by the user is transferred to the elastic member 200 via the cover 100, the foot switch 310, and the brush plate 350. Such a force is applied in a direction of compressing the elastic member 200 downwardly. A force of the bottom plate 150 adhering to the cleaning surface by the suction force results in a moment in a clockwise direction around the rotary axes 152 and 156. Such a moment compresses upward the elastic member 200 biased against the front end of the bottom plate 150.
Therefore, the force of the bottom plate 150 compressing the elastic member 200 upward is greater than the force of compressing the elastic member 200 downward so that the bottom plate 150 rotates in the clockwise direction and remains level with the cleaning surface. Even when the rear end of the suction brush separates from the cleaning surface due to the difference between the force [R:\LIBLL] I 6325.doc:KEH O -11c direction caused by the user on the suction brush and the movement direction of the suction brush, Sthe bottom plate 150 can maintain close contact with the cleaning surface, thus enhancing the cleaning efficiency.
00 When the rear end of the suction brush returns to its original position after being separated from the cleaning surface, the bottom plate 150 rotates in a counterclockwise direction by the elastic member 200 compressing downward on the front end of the bottom plate 150. The bottom plate 150 rotates until the bottom plate stopper 164 contacts the terminal end of the brush plate support ribs 384, to thus return to its original position, as shown in FIG. 9A.
N, In light of the forgoing, even if the rear end of the suction brush is apart fr-om the cleaning surface, the close contact with the cleaning surface is maintained, thus enhancing the cleaning efficiency. When cleaning over the cleaning surface, such as the floor, the user changes to the stationary mode. Then, a proper gap is maintained between the cleaning surface and the bottom plate 150, to avoid scratching the cleaning surface. This is because the brush 372 moves and protrudes downward from the bottom plate 150 and supports the front end of the suction brush, and the rear end is supported by the wheel 418.
Accordingly, the assembly of the parts of the suction brush improves without requiring a fastening means such as bolts because each rotary axis and each axis hole is provided with the corresponding slopes. In addition, the absence of the fastening means reduces the number of required parts.
While the exemplary 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.
[R:\LIBLL] 16325.doc: KEH
Claims (12)
1. A suction brush for a vacuum cleaner, comprising: 00 a cover; and a bottom plate rotatably connected to the cover, the bottom plate having a suction port through which dust is drawn in from a surface being cleaned, the dust being drawn in by a suction force generated by a vacuum source disposed in a body of the vacuum cleaner.
2. The suction brush of claim 1, further comprising an elastic member disposed between the bottom plate and the cover so as to elastically bias an end of the bottom plate in a predetermined direction.
3. The suction brush of claim 2, further comprising a bottom plate stopper disposed on at least one of the bottom plate and the cover to limit a rotation of the bottom plate.
4. The suction brush of claim 3, further comprising a bottom plate fixing unit disposed between the cover and the bottom plate to selectively fix the bottom plate to the cover.
The suction brush of claim 4, wherein the bottom plate fixing unit comprises: a foot switch rotatably disposed in the cover and having an operation knob extending through an opening of the cover and a first locking part; and a brush plate rotatably disposed in the cover to rotate in association with the foot switch and having a second locking part to lock and unlock the brush plate with the first locking part in a complementary manner.
6. The suction brush of claim 5, further comprising a brush disposed at the brush plate that protrudes between the cover and the bottom plate according to the rotation of the brush plate.
7. The suction brush of claim 4, further comprising foot switch support ribs formed on the cover at a certain interval and having an axis hole connectable with a foot switch rotary axis of the foot switch, wherein at least one of the foot switch rotary axis and the brush plate support ribs is provided with a slope so that the foot switch rotary axis is pressed and inserted into the axis hole. [R:\LIBLL] 16325.doc:KEH -13-
8. The suction brush of claim 4, further comprising brush plate support ribs formed at the cover at a certain interval and having an axis hole connectable with a brush plate rotary axis of 0the brush plate, wherein at least one of the brush plate rotary axis and the brush plate support ribs is provided with a slope so that the brush plate rotary axis is pressed and inserted into the axis hole.
9. The suction brush of claim 1, further comprising: a bottom plate rotary axis formed on at least one of the bottom plate and the cover; and bottom plate support ribs having an axis hole connectable with the bottom plate rotary C axis, and the bottom plate support ribs formed on at least one of the cover and the bottom plate corresponding to the bottom plate rotary axis, wherein at least one of the bottom plate rotary axis and the bottom plate support ribs is provided with a slope so that the bottom plate rotary axis is pressed and inserted into the axis hole.
The suction brush of claim 1, further comprising: a wheel and a wheel shaft; a wheel receiving part formed at a rear of the cover for receiving the wheel and having a shaft hole through which the wheel shaft is inserted; a locking projection formed on the wheel shaft; and a locking recess formed at the shaft hole corresponding to the locking projection so that the wheel shaft is inserted into and locked with the shaft hole.
11. A suction brush for a vacuum cleaner comprising: a cover; a bottom plate rotatably connected to the cover, the bottom plate having a suction port through which dust is drawn in from a surface being cleaned, the dust being drawn in by a suction force generated by a vacuum source disposed in a body of the vacuum cleaner, a foot switch rotatably disposed in the cover and having an operation knob extending through an opening of the cover and a first locking part; a brush plate rotatably disposed in the cover to rotate in association with the foot switch and having a second locking part to lock and unlock the brush plate with the first locking part in a complementary manner; and a brush disposed at the brush plate protruding between the cover and the bottom plate according to the rotation of the brush plate. (RALIBLL] 16325.doc:KEH -14-
12. A suction brush for a vacuum cleaner, substantially as herein described with reference to Figs. 2, 3, 4A, 4B, 5 to 7, 8A, 8B, 9A and 9B. 00 Dated 26 November, 2004 Samsung Gwangju Electronics Co., Ltd. Patent Attorneys for the ApplicantlNoniinated Person SPRUSON FERGUSON [RALI BLL) I6325.doc: KEH
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040053312A KR100582519B1 (en) | 2004-07-09 | 2004-07-09 | A suction brush assembly of a vacuum cleaner |
| KR2004-53312 | 2004-07-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2004237799A1 true AU2004237799A1 (en) | 2006-02-02 |
| AU2004237799B2 AU2004237799B2 (en) | 2007-10-04 |
Family
ID=36713642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2004237799A Ceased AU2004237799B2 (en) | 2004-07-09 | 2004-12-08 | Suction brush for vacuum cleaner |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US20060005350A1 (en) |
| JP (1) | JP2006021019A (en) |
| KR (1) | KR100582519B1 (en) |
| CN (1) | CN1718150A (en) |
| AU (1) | AU2004237799B2 (en) |
| DE (1) | DE102004061855A1 (en) |
| FR (1) | FR2872693A1 (en) |
| GB (1) | GB2415890B (en) |
| RU (1) | RU2283612C1 (en) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101211497B1 (en) | 2006-01-13 | 2012-12-12 | 삼성전자주식회사 | Vacuum Cleaner |
| KR100809737B1 (en) * | 2006-11-28 | 2008-03-06 | 삼성광주전자 주식회사 | Cleaner |
| JP2008132299A (en) * | 2006-11-28 | 2008-06-12 | Samsung Kwangju Electronics Co Ltd | Vacuum cleaner |
| KR100756322B1 (en) * | 2006-12-06 | 2007-09-06 | 삼성광주전자 주식회사 | Brush and vacuum cleaner havig the same |
| KR101457425B1 (en) * | 2007-08-21 | 2014-11-06 | 삼성전자주식회사 | A suction brush for vacuum cleaner |
| KR101322247B1 (en) * | 2007-09-06 | 2013-10-25 | 삼성전자주식회사 | suction brush for use in vacuum cleaner and height adjusting method thereof |
| KR100881941B1 (en) * | 2007-10-19 | 2009-02-04 | 한경희 | Connecting tube of cleaner |
| CN202211648U (en) * | 2011-03-17 | 2012-05-09 | 马卫宏 | Ground brush of dust collector |
| DE102011077293B4 (en) * | 2011-06-09 | 2021-05-06 | BSH Hausgeräte GmbH | Spring-loaded suction nozzle |
| DE102012106570B4 (en) * | 2012-07-19 | 2014-08-28 | Wessel-Werk Gmbh | Vacuum cleaner nozzle, in particular for household vacuum cleaners |
| DE102012106571B4 (en) * | 2012-07-19 | 2015-12-31 | Wessel-Werk Gmbh | Vacuum cleaner nozzle, in particular for household vacuum cleaners |
| US9345371B2 (en) | 2012-12-12 | 2016-05-24 | Electrolux Home Care Products, Inc. | Vacuum cleaner base assembly |
| US20140157543A1 (en) | 2012-12-12 | 2014-06-12 | Electrolux Home Care Products, Inc. | Vacuum cleaner base assembly |
| GB2522434B (en) | 2014-01-23 | 2017-08-23 | Techtronic Floor Care Tech Ltd | A head for a surface cleaning device |
| CN109247869A (en) * | 2015-02-27 | 2019-01-22 | 苏州市海泉电器有限公司 | Big suction floor brush of dust collector |
| DE102015105061B4 (en) * | 2015-04-01 | 2022-03-24 | Vorwerk & Co. Interholding Gmbh | cleaning device |
| DE102015117552B4 (en) * | 2015-10-15 | 2024-04-18 | Vorwerk & Co. Interholding Gmbh | Attachment for a household cleaning appliance and household cleaning appliance |
| CN105411479B (en) * | 2015-12-10 | 2017-09-22 | 江苏美的清洁电器股份有限公司 | Vertical type dust collector |
| DE102016107551A1 (en) * | 2016-04-22 | 2017-10-26 | Vorwerk & Co. Interholding Gmbh | Suction nozzle for a vacuum cleaning device |
| CN106491048B (en) * | 2016-11-19 | 2018-12-21 | 叶志敏 | A kind of intellective dust collector with dragging function |
| CN106618378B (en) * | 2016-11-23 | 2022-08-26 | 苏州海歌电器科技有限公司 | Floor brush of dust collector |
| KR102341735B1 (en) * | 2017-07-26 | 2021-12-22 | 삼성전자주식회사 | Cleaner |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2025734A (en) * | 1932-06-16 | 1935-12-31 | Electrolux Corp | Suction nozzle |
| NL48621C (en) * | 1936-11-17 | |||
| SE351363B (en) * | 1970-09-30 | 1972-11-27 | Electrolux Ab | |
| GB1427126A (en) * | 1973-11-08 | 1976-03-10 | Electrolux Ltd | Vacuum cleaner nozzle |
| DE2364750C2 (en) * | 1973-12-27 | 1983-08-18 | Hans 5226 Reichshof Wessel | Vacuum cleaner nozzle |
| SE390251B (en) * | 1975-03-26 | 1976-12-13 | Electrolux Ab | VACUUM CLEANER NOZZLE |
| CH643450A5 (en) * | 1980-03-14 | 1984-06-15 | Hans Wessel | Vacuum cleaner nozzle |
| GB2072495B (en) * | 1980-03-25 | 1983-11-30 | Wessel H | Vacuum cleaner nozzles |
| DE19505106C2 (en) * | 1995-02-16 | 1997-04-17 | Stein & Co Gmbh | Device for floor care equipment |
| DE19717291B4 (en) * | 1997-04-24 | 2006-10-26 | Wessel-Werk Gmbh | Floor nozzle for vacuum cleaner |
| DE19818568C1 (en) * | 1998-04-25 | 1999-05-27 | Wessel Werk Gmbh | Electric vacuum cleaner suction tool |
| DE50000163D1 (en) * | 2000-09-02 | 2002-06-13 | Wessel Werk Gmbh | Suction head for vacuum cleaner |
| DE10105371A1 (en) * | 2001-02-06 | 2002-08-14 | Wessel Werk Gmbh | Suction head for household canister vacuum cleaners |
-
2004
- 2004-07-09 KR KR1020040053312A patent/KR100582519B1/en not_active IP Right Cessation
- 2004-11-19 US US10/991,426 patent/US20060005350A1/en not_active Abandoned
- 2004-11-22 JP JP2004337827A patent/JP2006021019A/en active Pending
- 2004-12-08 AU AU2004237799A patent/AU2004237799B2/en not_active Ceased
- 2004-12-09 GB GB0427017A patent/GB2415890B/en active Active
- 2004-12-13 CN CNA2004101007470A patent/CN1718150A/en active Pending
- 2004-12-21 RU RU2004137458/12A patent/RU2283612C1/en not_active IP Right Cessation
- 2004-12-21 FR FR0413673A patent/FR2872693A1/en not_active Withdrawn
- 2004-12-22 DE DE102004061855A patent/DE102004061855A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| GB0427017D0 (en) | 2005-01-12 |
| FR2872693A1 (en) | 2006-01-13 |
| GB2415890B (en) | 2006-09-20 |
| CN1718150A (en) | 2006-01-11 |
| US20060005350A1 (en) | 2006-01-12 |
| JP2006021019A (en) | 2006-01-26 |
| KR100582519B1 (en) | 2006-05-23 |
| RU2283612C1 (en) | 2006-09-20 |
| AU2004237799B2 (en) | 2007-10-04 |
| DE102004061855A1 (en) | 2006-02-02 |
| KR20060004262A (en) | 2006-01-12 |
| GB2415890A (en) | 2006-01-11 |
| RU2004137458A (en) | 2006-06-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TH | Corrigenda |
Free format text: IN VOL 18, NO 50, PAGE(S) 10062 UNDER THE HEADING COMPLETE APPLICATIONS FILED - NAME INDEX UNDER THE NAME SAMSUNG GWANGJU ELECTRONCIS CO., LTD., APPLICATION NO. 2004237799, UNDER INID (71) CORRECT THE NAME TO READ SAMSUNG GWANGJU ELECTRONICS CO., LTD. |
|
| FGA | Letters patent sealed or granted (standard patent) | ||
| MK14 | Patent ceased section 143(a) (annual fees not paid) or expired |