EP0912130A1 - Motor-driven brush device - Google Patents
Motor-driven brush deviceInfo
- Publication number
- EP0912130A1 EP0912130A1 EP97915474A EP97915474A EP0912130A1 EP 0912130 A1 EP0912130 A1 EP 0912130A1 EP 97915474 A EP97915474 A EP 97915474A EP 97915474 A EP97915474 A EP 97915474A EP 0912130 A1 EP0912130 A1 EP 0912130A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- brush
- gearbox
- motor
- drive shaft
- brush part
- 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
- A47L9/0405—Driving means for the brushes or agitators
- A47L9/0411—Driving means for the brushes or agitators driven by electric motor
-
- 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
- A47L9/0427—Gearing or transmission means therefor
- A47L9/0444—Gearing or transmission means therefor for conveying motion by endless flexible members, e.g. belts
Definitions
- the invention relates to a motor-driven brush assembly with a brush part that can be plugged onto a receptacle that guides a drive shaft, the rotatable 00006 brush part in a vertical section through the axis 00007 of the drive shaft on the inside overlapping to a 00008 fixed base plate is.
- 00009 00010 Motor-driven brush devices of this type are known. These are used in particular for cleaning 00012 carpets, with one or two brushes 00013 rotatingly interfering with the pile of the carpets to be maintained 00014. Experience has shown that not only 00015 dirt particles are loosened, but also hair and threads 00016 are picked up.
- 00040 distinguishes high functional reliability. 00041
- 00044 represents that further inside a step-like
- 00061 gear box is formed. It is preferred
- 00079 is annular. To avoid friction loss
- 00105 is dimensioned such that the expected amount of 00106 indentation over the life of the bristle roller in
- 00117 gear box is conical, with a detachable
- the projections are rib-like
- the rib-like projections or webs 00138 have the task of penetrating and winding up
- FIG. 1 shows a motor-driven brush device according to the invention in a perspective representation 00184; 00185 00186 Figure 2 shows the brush device in a bottom view, with 00187 partially broken bottom plate and with 00188 brush parts shown in 00188 dash-dotted line type; 00190 00191 FIG. 3 shows a partially broken open individual illustration 00192 of the brush drive areas; 00193 00194 FIG.
- FIG. 4 shows an enlarged detail according to the area 00195 IV-IV in FIG. 3; 00196 00197
- Figure 5 shows the section along the line VV in Figure 3 with 00198 schematically shown, wound 00199 penetrant.
- FIG. 6 shows an enlarged detail of the area 00202 VI-VI in FIG. 3.
- a motor-driven brush device 1 is shown and described, which 00206 in the exemplary embodiment shown is designed as an attachment device 00207 for a vacuum cleaner is.
- the Bürstenge ⁇ 00208 advises 1 is composed essentially of a housing 2 00209 and a pipe connection piece 3.
- a suction channel 4 extends from the pipe connection 00211 connecting piece 3 to a suction chamber 5.
- 00212 the latter is located in an end area 00213 which faces away from the pipe connection piece 3 and 00214 extends almost over the entire housing width 00215 (cf. Fig. 2).
- 00216 00217 Furthermore, a separate drive 00218 6 is arranged in the housing 2, which sets a drive shaft 8 extending 00219 into the suction chamber 5 in rotation via a toothed belt 7.
- the toothed belt 7 lies in a belt 00221 housing 9, which is pivotally mounted on an axis x 00223 at the end facing away from the drive shaft 8.
- This axis x also forms the force transmission axis from the separate drive 6 to the toothed belt 00225 men 7 and lies parallel to the drive shaft 8.
- 00226 00227 The toothed belt drive or the belt housing 9 extends approximately from the center of the suction chamber 5 outgoing 00229 perpendicular to the drive shaft 8 to the axis x.
- the 00231 toothed belt 7, at least within a receiving part 00232 10 engages a drive pulley 11 from which the 00233 drive shaft 8, which is divided in two, extends on both sides. The latter therefore extends from the drive disk 11 00235 to a lateral end region of the suction chamber 00236.
- Each drive shaft 8 has a driver 00239 mer 12 approximately in the center.
- 00240 00241 in FIG. 2 is the brush device 1 is shown in a bottom view 00242, the bottom 13 00243 of the brush device 1 being partially broken open in the area of the suction chamber 5. It can be seen 00244 that on the side facing away from the suction chamber 5 00245 side, ie at the level of the pipe connection piece 3, two 00246 rollers 14 are arranged on the bottom.
- the brush device 1 is equipped for use as a conventional 00253 attachment for an electric vacuum cleaner for the care of 00254 carpets, in particular for vacuuming the like, 00255 with brush parts 16.
- These brush parts 16 00256 are shown in dash-dotted lines in FIG. 2 and 00257 essentially consist of two cylindrical sections arranged axially one behind the other 00258, the cylinder 00260 body 17 facing the receiving part 10 in the installed state in 00259 being enlarged in cross-section compared to the 00261 section facing away from the receiving part 10 is.
- Each brush part 16 is designed as a hollow body 00264 and is provided on the outside with two rows of bristles 18 offset by 180 °, which extend from a 00266 end region of the brush part 16 by about 180 ° 00267 spirally around the latter.
- 00268 00269 The brush parts 16 are pushed onto the drive shafts 8 and extend in the installed state about 00271 from the receiving part 10 to the end region 00272 of the suction chamber 5.
- the power transmission from the drive shaft 00 003 to a brush part 16 takes place via the 00274 driver 12 of the drive shaft 8, which engages non-positively in a corresponding recess 00275 within the brush part 16 formed as a hollow body.
- Each gear box 15 serves to receive and guide 00279 a drive shaft part.
- the geometry of everyone 00280 gearbox 15 is selected so that it 00281, starting from the receiving part 10, to which the gearbox 00152 is flanged, tapers towards its 00283 free end 21 '.
- 00287 00288 The mentioned body 17 of the brush part 16, however, 00289 is strictly cylindrical and overhangs the 00290 gearbox 15 freely.
- a centering and 00291 correct holding of the brush part 16 takes place in the 00292 area of the driver 12.
- 00293 00294 Due to the taper of the gear box 15, 00295 is a space 19 between the outer wall of the gear box 15 and 00296 the inner wall of the cylinder body 17 of the brush part 00297 les 16 created, which increases in 00298 cross section, ie in a plane viewed perpendicular to the shaft axis 00299, starting from the receiving part 10 00300 to the cantilevered end 21 of the gearbox 15 00301, with an annular design.
- This 00302 enlargement is formed in a longitudinal section according to FIG. 3 00303 due to the taper of the gear box 15 wedge-shaped 00304 mig.
- This 00318 free space 22 is only penetrated by the drive shaft 00319 00320 00321
- the free space 22 has a width a 00323 -measured in the axial direction of the drive shaft 8-, 00324 which is at least a distance b between the outer wall 00325 of the gearbox 15 and the inner wall of the 00326 cylinder body 17 Brush part 16 in the area of the 00327 free end 21 of the gearbox 15 - measured in radial direction 00328 direction - corresponds.
- each gear box 15 forms an annular collar 23 projecting radially outwards 00337.
- the brush part 16 is thickened in the free end area of the 00347 cylinder body 17 in such a way that on 00348 this inside brush part end 27 the outer diameter 00349 approximately corresponds to that of the outer diameter of the gearbox 00350 least 15 in the plane of the annular projection 24 corresponds to 00351 (see FIG. 4).
- the brush part 16 engages in 00353 the annular groove 26 of the gear box 15, for which purpose 00354 the end of the brush part 27 has a radially inward 00355 step-like step 28 with a circular cross section 00356.
- the annular projection 24 of the 00357 gearbox 15 accordingly encompasses a part of the 00358 inside brush part end 27, this brush part 00359 27, as in the entire area of the gearbox 00360 least 15, being exposed in the projection 24 00361 (see FIG. 4).
- 00362 00363 As can be seen in particular from FIG.
- a 00364 labyrinth L1 is thus created, which forms a 00366 entry path running between 00365 gearbox 15 and brush part 16 (see arrow 11).
- 00367 00368 The outer entry gap 29 of the labyrinth L1 between 00369 the end face of the projection 24 and the end face of the brush part end 27 lying opposite this 00370 is 00371 covered on the bottom side of the device 1 by a fixed bottom plate 00372 30. The latter is only schematically shown in FIG. 3.
- 00374 00375 This measure creates another labyrinth L2 00376, which is upstream of the labyrinth Ll 00377.
- a further labyrinthine 00378 entry path 12 results.
- the gearbox 15 has projections 31 00400 on the outside of the jacket, in 00398 the space 19 protruding and extending in the longitudinal direction of the gearbox 15.
- four projections 31, which are evenly distributed on the circumference of the gearbox 15, are provided, which are designed like ribs 00403.
- Sharp-edged webs 00404 can also be provided instead of the rib-like projections.
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19620947 | 1996-05-24 | ||
DE19620947A DE19620947A1 (en) | 1996-05-24 | 1996-05-24 | Motorized brushing device |
PCT/EP1997/001635 WO1997045051A1 (en) | 1996-05-24 | 1997-04-01 | Motor-driven brush device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0912130A1 true EP0912130A1 (en) | 1999-05-06 |
EP0912130B1 EP0912130B1 (en) | 2000-01-05 |
Family
ID=7795213
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97915474A Expired - Lifetime EP0912130B1 (en) | 1996-05-24 | 1997-04-01 | Motor-driven brush device |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0912130B1 (en) |
AT (1) | ATE188360T1 (en) |
DE (2) | DE19620947A1 (en) |
ES (1) | ES2141607T3 (en) |
GR (1) | GR3032936T3 (en) |
PT (1) | PT912130E (en) |
WO (1) | WO1997045051A1 (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3188681A (en) * | 1962-01-24 | 1965-06-15 | Sunbeam Corp | Vacuum cleaner |
DE1932661A1 (en) * | 1969-06-27 | 1971-01-07 | Vorwerk & Co Elektrowerke Kg | Brush roller for especially vacuum cleaners and carpet sweeping machines |
DE2728992A1 (en) * | 1977-06-28 | 1979-01-18 | Duepro Ag | CLEANING DEVICE |
US5435038A (en) * | 1994-03-10 | 1995-07-25 | Sauers; Carl B. | Brush roller assembly for vacuum cleaner sweeper |
DE4412986A1 (en) * | 1994-04-15 | 1995-10-19 | Vorwerk Co Interholding | Brush cleaning device, in particular for carpets |
-
1996
- 1996-05-24 DE DE19620947A patent/DE19620947A1/en not_active Withdrawn
-
1997
- 1997-04-01 PT PT97915474T patent/PT912130E/en unknown
- 1997-04-01 EP EP97915474A patent/EP0912130B1/en not_active Expired - Lifetime
- 1997-04-01 DE DE59700986T patent/DE59700986C5/en not_active Expired - Fee Related
- 1997-04-01 AT AT97915474T patent/ATE188360T1/en not_active IP Right Cessation
- 1997-04-01 WO PCT/EP1997/001635 patent/WO1997045051A1/en active IP Right Grant
- 1997-04-01 ES ES97915474T patent/ES2141607T3/en not_active Expired - Lifetime
-
2000
- 2000-03-10 GR GR20000400632T patent/GR3032936T3/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO9745051A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE59700986D1 (en) | 2000-02-10 |
WO1997045051A1 (en) | 1997-12-04 |
DE19620947A1 (en) | 1997-11-27 |
GR3032936T3 (en) | 2000-07-31 |
EP0912130B1 (en) | 2000-01-05 |
ES2141607T3 (en) | 2000-03-16 |
PT912130E (en) | 2000-04-28 |
DE59700986C5 (en) | 2007-02-22 |
ATE188360T1 (en) | 2000-01-15 |
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