WO1995028123A1

WO1995028123A1 - Brush cleaning device, especially for carpeting

Info

Publication number: WO1995028123A1
Application number: PCT/EP1995/001148
Authority: WO
Inventors: Andreas Schmoll; Markwart Danesch
Original assignee: Vorwerk & Co. Interholding Gmbh
Priority date: 1994-04-15
Filing date: 1995-03-27
Publication date: 1995-10-26
Also published as: ES2121362T3; DE4412986A1; DK0755217T3; EP0755217B1; AU2136495A; EP0755217A1; DE59503435D1; ATE170379T1

Abstract

The invention relates to a brush cleaning device (10), especially for carpeting, with preferably electrically driven brushes (28, 32), in which the brushes (28, 32) are fitted to be vertically movable. In order to improve a brush cleaning device (10) as claimed in a technically simple manner, it is proposed that the brushes (28, 32) be securable in the vertically lowest position for treating the carpeting with a cleaning agent.

Description

00001 Brush cleaning device, especially for carpets 00002

00003 The invention relates to a brush cleaning device, in particular

00004 special for carpets, preferably with electrical

00005 drivable brushes, the brushes moving vertically

00006 bar are stored. 00007

Such brush cleaning devices are known. This

00009 are used especially for cleaning carpets

00010 turns, the driven brushes rotating in the

Intervene and touch the pile of carpet to be maintained

00012 loosen dirt particles. The brush drive

00013 is preferably done electrically. However, they are also devices

Known in which the brushes have a mechanical

00015 implementation by moving the brush cleaning device

00016 tes are driven. The in the brush cleaning

00017 advises stored brushes are vertically movable,

00018 in the known versions rocker constructions

00019 can be used. The latter serve to balance the

00020 bristle wear of the brushes and for pile height adjustment

00021 solution. Brush cleaning devices are also known

00022 which also include drivable brushes for

00023 Massage or evenly distribute cleaning

00024 mittein, in particular of cleaning granules. Here-

00025 by should be heavily soiled carpets

00026 be refreshed. In contrast to the previous

00027 ten brush cleaning devices have these drivable

00028 brushes, the bristles deeper into the carpet pile

Intervene 00029. A higher one is also preferred here

00030 support weight for improved massaging of the cleansing

00031 detergent. 00032

00033 object of the present invention is a generic

00034 brush cleaning device according to manufacturing technology

00035 easy way to improve. 00036 This problem is solved by the main claim

00037 bene invention. 00038

00039 The subclaims represent advantageous developments

00040. 00041

00042 As a result of such a configuration, a brush cleaning

00043 device created, which is easy to manufacture

00044 is rather improved way. For this purpose it is provided that

00045 the brushes for treating the carpet with a

00046 detergent in a vertically lowest position

00047 are fixable. This is due to this configuration

00048 the brush cleaning device for both normal care

00049 of carpets as well as for treatment with cleaning

00050 can be used. For the usual cleaning of a carpet

00051 floor, the drivable brushes remain in one of the

00052 pile height or vertical wear adapted to the bristle wear

00053 len position. A brushing off takes place here in the usual way.

00054 most of the carpet. To treat the carpet

00055 with a detergent, the brushes are in a

00056 vertically lowest position, with which the

00057 gangs mentioned preferred position of the brushes at a

Such treatment is given. The bristles of the driven

00059 benen brushes now reach deeper into the pile of

00060 carpet and thus massage the

00061 detergent. Such a configuration is also

00062 conceivable in such devices in which the brushes

00063 about a mechanical implementation through the device movement

00064 are driven. However, use in is preferred

00065 brush cleaning devices with electrically driven

00066 brushes. Fixing the brushes in a vertical

00067 lowest position can for example by means of a

00068 foot switch or the like on the brush cleaning device

00069 take place. There are also brush cleaning devices with

00070 drivable brushes known, at the same time An extraction can be carried out. Here, the

00072 loosened by the electrically driven brushes

00073 dirt particles suctioned off at the same time. This is for

00074 usual cleaning of carpets with special pre

00075 part. To treat carpets with a cleaning

However, this makes less sense, because here

00077 the detergent to be massaged is also

00078 would be sucked off in time. To counteract this

According to the invention provided that with fixing the

00080 brushes can remove the suction in the area of the brushes

Is 00081. This means that at the same time as setting

00082 of the brushes in a vertically lowest position for loading

00083 handling the carpet with a detergent

00084 the suction is stopped at least in the area of the brushes

00085 ben. The cleaning agent to be massaged

00086 thus remains in the carpeting to act on. It

00087 is conceivable here to provide the brush cleaning device with a foot switch or the like, which

00089 when actuated a rocker construction of the drivable

00090 brushes in a vertically lowest position and

00091 at the same time the suction in a contact switch

00092 area of the brushes prevented. In a preferred one

Exchange brushes are provided, wherein

00094 these have a smaller diameter than that

00095 first brushes. The drive in brush cleaning devices

Brushes stored at 00096 bar are known in the

00097 wear or defect replaceable. It is suggested

00098 for treating carpets with a cleaning agent

00099 tel to replace these brushes with replacement brushes.

00100 the latter have a smaller diameter than that

00101 first brushes, which when fixed in a vertical

00102 lowest position of the brushes now relatively

00103 further down with respect to a bottom of the brush

00104 protruding cleaning device. As a result, the

00105 bristles of the replacement brushes deeper into the pile of 00106 intervene in the carpet to be treated, which

00107 better massaging the detergent.

00108 When the replacement brushes are inserted, these auto-

00109 table set in a vertically lowest position.

00110 In parallel to this, the extraction is canceled in the

00111 area of brushes. For example, the exchange

00112 brushes have a radial collar that has a suction opening

00113 closes the brush cleaning device. Far

00114 ren is conceivable, the replacement brushes or the brush

00115 body made of a different, a heavier material

00116 to manufacture as the first brushes. This will be a

00117 higher total weight of the brushes, resulting in a

00118 desired higher contact weight when massaging

00119 of the detergent leads. As already mentioned

00120 provided that the replacement brushes with a locking

00121 are partially designed for the suction channel of the device.

00122 It is preferred here that the closure part the suction

00123 nal to an outer face of the brushes

00124 det. The suction is therefore not switched off,

00125 but rather a deflection of the suction channel from

00126 area of the brushes away to an outer end face

00127 of the brushes. The brush cleaning products known on the market

00128 equipment for the treatment of carpets with a

00129 cleaning agents work in the area of the brushes

00130 a lower speed than those for the usual care

00131 ge of carpets, especially for vacuuming last

00132 rer. This is desirable because when massaging the cleansing

00133 means achieved an improved effect

00134 will. To this advantage also with the invention

To use 00135 brush cleaning device is further

00136 provided that the replacement brushes with a base

00137 interaction gear train. The latter causes one

00138 reduction of the motor speed of the brush cleaning device

00139 tes on the replacement brushes. As a result, rotate

00140 the replacement brushes with lower speed than 00141 the first, for the usual treatment of carpets

00142 suitable brushes, resulting in the advantage already mentioned

00143 leads. It is preferred here that the reduction gear

00144 drives are planetary gears. The latter can be brushed

00145 body of each replacement brush can be provided.

00146 Due to this configuration, it is achieved that the 00147 speed of the replacement brushes is preferably about a third

00148 tel to a quarter of the speed of the first brushes

00149 corresponds. In a further embodiment,

00150 hen that the replacement brushes with about double bristles

00151 number compared to the first brushes.

00152 This leads to an improved massage in

00153 detergent in the carpet to be treated.

00154 It is also conceivable that the reduction gear

00155 arranged on an outer end face of the replacement brushes

00156 are net. This has the particular advantage that

00157 the brush body of the replacement brush is not basic

00158 differs from those of the first brushes. The drive

00159 power is supplied via an

00160 drive shaft on the reduction gear, preferably one

00161 planetary gear, transmitted, it being provided here

00162 that the drive power by means of an inner hollow shaft

00163 the exchange brush is transferred. The hollow shaft works

00164 with a planetary gear directly on the

00165 te sun gear. It is also proposed that

00166 the hollow shaft with an output-side planet gear

00167 planetary gear cooperates. With one at the same time

00168 causes fixed ring gear of the planetary gear

00169 this arrangement a corresponding reduction before

00170 moves 3: 1 to 4: 1, with the same direction of transmission

00171 Direction of rotation on the replacement brush or from the hollow

00172 shaft on the planet gear. On the planet gear is the

00173 bristle carrier of the replacement brush visible from the outside

00174 is attached. In a preferred embodiment of the

00175 subject of the invention it is provided that the exchange 00176 brush received in a half-shell sleeve

00177 is. To use the brush cleaning device for treatment

00178 be carpets with a detergent

00179 for the usual treatment, especially for suction

00180 of carpets used against the brushes in the

00181 half-shell-shaped exchange brushes

00182 replaced. This is particularly true of the

00183 Hygiene is of great advantage because after massaging one

00184 detergent in a carpet and the

00185 following replacement of the replacement brushes for the

00186 first brushes no direct contact with the replacement brush

00187 most is required. Rather, it is the case that the

00188 replacement brushes together with the sleeve represent a structural unit

00189 len, for exchanging only the sleeve contact

00190 ized. For improved interchangeability, the

00191 sleeve on a freely accessible outside face with

00192 a handle, for example in the form of a tab or

00193 of a bracket. The sleeve also has

00194 ren still advantages in that with an insert

00195 zen the sleeve an outer surface of the sleeve a partial wall

00196 of the suction channel. Hereby the already mentioned

00197 te transformation of the suction channel to an outer end face

00198 the brushes achieved. The suction flow is thus from

00199 area of the brushes kept away, which means at the same time

00200 term suction of the detergent while massaging

00201 is counteracted. In a particularly advantageous way

00202 is provided that by reforming the suction channel

00203 at least partially the air through the reduction gear

00204 drives is guided. Due to this configuration

00205 a possible overheating of the reduction gear

00206 bes, especially the planetary gear avoided. Last

00207 teres is always swept past the gearbox

00208 cooling air cooled. It is conceivable, for example, at

00209 inserted in a sleeve replacement brush in the sleeve

00210 area of the reduction gear of the replacement brush 00211 with ventilation slots through which at least

00212 at least partially the air of the suction channel is guided. As

00213 proves to be particularly advantageous in that the sleeve

00214 the outer end of an exchange brush assigned a

00215 has tapered slopes which, when inserted,

00216 storage in the vertically lowest position of the exchange

00217 brush provides and at the same time the distance between

00218 the outer surface of the sleeve and an inner surface of the

00219 housing for reshaping the Saugkanalε creates. Here

00220 takes place simultaneously when inserting the sleeve

00221 Sliding on the exchange brushes arranged in the sleeve

00222 ste on the drive shaft of the brush cleaning device.

00223 The run-up slope of the sleeve arranged at the end

00224 acts on another insertion due to the support

00225 tongue against an inner surface of the housing, a vertical 00226 lowering of the sleeve together with the replacement brush into one

00227 lowest position. The one engaging in the replacement brush

00228 Drive shaft can, due to the rocker construction

00229 on, understand this shift. Due to the vertical

00230 le shift to the lowest position is a space 00231 between the outer surface of the sleeve and the inner surface

00232 of the housing created, which numehr the suction channel

00233. The original suction channel, which at

00234 use of the usual treatment, in particular

00235 brushes suitable for vacuuming carpets

00236 brush room is included, is

00237 det. The brush room is when using the

00238 exchange brushes provided sleeves opposite the suction channel

00239 closed. It will also be an embodiment

00240 preferred, in the case of two replacement brushes with one each

00241 sleeve are provided and in the installed state

00242 lie face to face. This makes the brush

00243 closed against the modified suction channel,

00244 with which there is no suction in the area of the brushes. It

Rather, 00245 is such that the suction channel along the outer wall 00246 fertilizing the sleeves to the outer end faces of the sleeves

00247 or the replacement brushes. Here in

00248 already described a transfer of the exhaust air

00249 current via the reduction gear. A

00250 safe arrangement of the replacement brush within the

00251 sleeve, even after the sleeve has been removed from the

00252 brush cleaning device is given in that the

00253 inner surface of the sleeve a circumferential extent of more

00254 as 180 ^° and that the replacement brush due

00255 its bristle length is caught in the sleeve. The after

00256 down towards - towards a floor of the brush cleaning

00257 related device - open sleeve, has a through-

00258 step opening for the replacement brushes, which so

It is dimensioned that the width of the opening is smaller than

00260 the total diameter of the replacement brush, however, larger

00261 as the diameter of the brush body, or the

00262 bristle carrier is bristle carrier. The exchange office

00263 ste can thus be removed from the brush cleaning device.

00264 mener sleeve do not fall out of the latter. For removal

00265 me the replacement brush must be out of the will

00266 sleeve are removed, the yielding bristles

00267 allow removal. The 00268 replacement brush is further secured within the sleeve by

00269 that the replacement brush by engagement of a radial

00270 projection in a corresponding recess in the office

00271 is axially secured in the sleeve. Prefers

00272 is an embodiment in which the engagement of the

00273 radial projection in a corresponding recess

00274 of the brush body in the area of the reduction gear

00275 bes, especially the planetary gear. The

00276 radial projection provided on the housing can also

00277 if a circumferential extent of more than 180 ^°

00278 sen, which also has a locking effect when inserting one

00279 replacement brush is achieved in the sleeve. To achieve an optimal

00280 les result in the treatment of carpets with 00281 a cleaning agent by means of the used

00282 exchange brushes and their associated sleeves

00283, it is further proposed that the housing

00284 se of the device on a front side at a distance from one

00285 lower edge of the housing openings are provided which

00286 in any case when using replacement brushes a connection

00287 fertilizer to the suction channel. This is a

00288 suction of floating fine dust during the

00289 sierens given the detergent. This floating one

00290 fine dust is spread over the between the outer surface of the

00291 sleeve and the inner surface of the housing reshaped

00292 Suction channel suctioned off. However, it is done, as already

00293 mentioned, no suction within the brush area.

00294 The openings of the housing mentioned can, for example,

00295 se while inserting the sleeves into the brush

00296 cleaning device can be opened via a mechanism. at

00297 use of first brushes for the usual treatment,

00298 especially for vacuuming carpets, are the

00299 mentioned openings closed to a pull of

00300 to prevent outside air. Finally, it is provided that

00301 with insertion of the replacement brushes an adjustment of the

00302 suction unit connected to a low power level

00303 is. The suction unit is used for the brush cleaning

00304 equipment for the treatment of carpets with a

00305 detergent to a lowest suction power level

00306 set, which is preferred in this way of working

00307 cannot be changed manually. Because when using the

00308 brush cleaning device for treatment with a cleaning

00309 means, as already mentioned, no strong suction

00310 is necessary, the energy consumption

00311 need to be minimized. It is also a fully

00312 constant shutdown of the suction unit conceivable, wherein

00313 but the power supply of the brush cleaning device

00314 tes must be guaranteed. However, the setting

00315 preferred to a lowest power level because here 00316 the possibility of cooling the reduction gear

00317 and the suction of floating fine dust is given.

00318 The setting of the suction unit to a lowest

00319 shows performance level when using the replacement brushes

00320 also indicates to the user that for vacuuming the carpeting

00321 dens and the associated need for an increased

00322 th power level, first of all a replacement of the brushes

00323 must be made against the suction brushes. Only

00324 there is the possibility of using the suction unit again

00325 to use an increased power level. 00326

The object of the invention is shown below with reference to

00328 illustrative embodiments

00329 explained in more detail: It shows: 00330

00331

00332 Fig. 1 is a view of a with an inventive

00333 Brush cleaning device provided electrical

00334 vacuum cleaner, 00335

00336 Fig. 2 the brush cleaning device in a perspective

00337 vischen individual representation, 00338

00339 FIG. 3 the brush cleaning device in a lower

00340 sees, partially broken open, at semicolon

00341 illustrated representation of first brushes, 00342

00343 Fig. 4 is a perspective view of exchange

00344 brush for the treatment of carpets

00345 a cleaning agent and this exchange brush

00346 most assigned sleeves, 00347

00348 Fig. 5 is a perspective view of the first

00349 Brushes for a suction operation for carpets

00350 den 00351 Fig. 6 each an end view of an exchange brush

00352 and a first brush to illustrate the

00353 different diameters, 00354

00355 Fig. 7 is a partial section through an exchange brush, 00356

8 shows the section along the line VIII-VIII in FIG

00358 2, with partially inserted, with replacement

00359 brushed sleeves, 00360

00361 FIG. 9 shows a representation corresponding to FIG. 8,

00362 but with the sleeves fully inserted, 00363

00364 FIG. 10 shows a representation corresponding to FIG. 3,

00365 after inserting the sleeves, with dot-dash

00366 ter representation of the replacement brushes, 00367

00368 FIG. 11 is an enlarged detail of a front

00369 gen area together with a sleeve in

00370 the brush cleaning device used

00371 exchange brush, 00372

00373 FIG. 12 shows the section along the line XII-XII in FIG. 9

00374 and 00375

00376 FIG. 13 the section along the line XIII-XIII in FIG

00377 9. 00378

00379 The electric vacuum cleaner 1 shown in Figure 1 is

00380 designed as a handheld device. It has a housing 2

00381 which is followed by a device handle 3 with end

00382 tigern handle 4. In the transition area between hand

00383 handle 4 and handle 3 is an on / off scarf

00384 ter 5. The electrical cable connection is number 6

00385. 00386 The housing 2 is divided into a motor housing 7 and

00387 an extending chamber 8 for receiving

00388 of a filter bag, not shown. The engine fan

00389 se is also not shown in detail in the drawing.

00390 given. 00391

00392 The motor housing 7 goes into a pipe coupling on the underside

00393 9 via which the air flow connection to a bureau

00394 window cleaning device 10 produces. 00395

00396 The blower motor works from the bottom up and presses

00397 therefore the dust air in the above the engine housing

00398 ses 7 filter bags arranged upside down. 00399

00400 The brush cleaning device 10 shown in Figure 2

00401 consists essentially of a housing 11 and a

00402 pipe connection piece 12. In the housing 11 extends

00403 a suction channel 13 from the pipe connection piece 12

00404 up to a suction chamber 14. The latter is in

00405 an end area, which the pipe connection

00406 nozzle 12 is facing away and extends almost over

00407 the entire width of the housing (see FIG. 3). Furthermore

00408, a separate drive 15 is arranged in the housing 11.

00409 net, which is a toothed belt 16 in the

00410 suction chamber 14 extending drive shaft 17 in rotation

00411 offset. The toothed belt 16 lies in a belt housing

00412 18, which on the drive shaft 17 facing away

00413 end is pivotally mounted about an axis x. This

00414 axis x also forms the power transmission axis of

00415 the separate drive 15 on the toothed belt 16 and lies

00416 parallel to the drive shaft 17. The toothed belt drive

00417 or the belt housing 18 extends approximately from the

00418 center of the suction chamber 14 starting perpendicular to the drive

00419 shaft 17 up to axis x. On the drive shaft 17th

00420 associated end engages the toothed belt 16, likewise 00421 within a translation housing 19, on a connection

00422 drive pulley 20, of which the two-part on both sides

00423 drive shaft 17 goes out. The latter thus extends

00424 each from the drive pulley 20 starting in

00425 a lateral end region of the suction space 14. 00426

00427 Each drive shaft 17 has a driver approximately in the center

00428 he 21. 00429

00430 In FIG. 3, the brush cleaning device 10 is shown in a 00431, bottom view, with 14 in the area of the suction space

00432 the floor 22 of the brush cleaning device 10 partially

00433 has broken open. It can be seen that on the

00434 Suction chamber 14 side facing away, i.e., approximately at the level of the

00435 pipe connection piece 12, two rollers 23 on the bottom

00436 are arranged. 00437

00438 The transmission housing 19 extends on both sides 00439 coaxially to the drive shafts 17 centering sleeves 24,

00440 which extends at a distance up to the drivers 21

00441 ken. 00442

00443 On the ceiling side, the suction chamber 14 has

00444 support housing 19, approximately in the middle of the suction chamber 14,

00445 a fixing device protruding into the suction space 14

00446 jump 25. 00447

00448 on the front 26 of the housing 11 are at a distance

00449 to the lower edge of the housing 11 openings 27 provided

00450 hen, which in connection to the suction channel 13 or the suction

00451 room 14 stand. 00452

00453 For using the brush cleaning device 10 as a normal

00454 Chen attachment for an electric vacuum cleaner 1 for maintenance

00455 of carpets, in particular for vacuuming the like, 00456 becomes the brush cleaning device 10 with suction brushes 28

00457 equipped. 00458

00459 These suction brushes 28 are dash-dotted in FIG. 3

00460. Figure 5 shows a perspective

00461 Individual representation of these suction brushes 28. Last pass

00462 essentially from a cylindrical brush body

00463 29, which is designed as a hollow body. Outside

00464, the brush body 29 is offset by two by 180 degrees

00465 arranged brush rows 30 which differ from

00466 an end region of the brush body 29 starting by approx.

00467 extend 180 degrees spirally around the latter. 00468

00469 The suction brushes 28 are pushed onto the drive shafts 17

00470 ben and extend in the installed state from about

00471 transmission housing 19 starting in the end area

00472 of the suction chamber 14. The power transmission from the drive

00473 shaft 17 on a suction brush 28 is carried out via the

00474 mer 21 of the drive shaft 17, which in a corresponding

00475 en recording within the hollow body

00476 brush body 29 engages non-positively. 00477

00478 The mode of operation of a brush brush equipped in this way

00479 cleaning device 10 is known. After switching on the

00480 electric vacuum cleaner 1 by means of the on / off switch 5 00481 is connected via a power supply

00482 in the area of the pipe coupling 9 the separate connection

00483 15 started up. During suction in

00484 area of the suction chamber 14, the suction brushes 28th

00485 set in rotation by means of the separate drive 15,

00486 wherein the suction brushes 28 preferably have dirt

00487 Brush the item out of the carpet. Depending on the bristle groove

00488 tongue and depending on the pile height of the carpet there is a 00489 swiveling of the suction brushes 28 over the belt housing 00490 18 about the axis x. This rocker function automatically 00491 table the correct height of the suction brush 28.

00492 Especially with regard to different pile heights

00493 of the carpet is a different size

00494 passage of the bristles in the area of the suction

00495 it 14 with a suction opening 31 provided bottom 22. 00496

00497 If it is desired to use the brush cleaning device 10 for treatment

00498 treatment of carpets with a cleaning agent

00499, the suction brushes 28 are exchanged for

00500 most 32 replaced. 00501

In Figure 4, these replacement brushes 32 are perspective

00503 shown. Outwardly there is essentially one

00504 difference to see that compared to the suction brushes

00505 28 a double number of rows of bristles 33 is provided

00506 are. There are now four rows of bristles

00507 33, which from an end region of a brush body 34,

00508 offset by 90 degrees, starting in the

00509 extend other end area, each row of bristles

00510 33 the brush body 34 spirally by approximately 180 degrees

00511 revolves. 00512

00513 At one end of each replacement brush 32 is this

00514 in the area of the brush body 34 with an annular groove 35

00515 provided. As can be seen from Figure 7, the

00516 replacement brush 32 within the hollow body

00517 Deten brush body 34 a coaxial to the brush body

00518 34 aligned hollow shaft 36. The latter extends

00519 from the end portion having the annular groove 35 to about

00520 center of the brush body 34. In this, approximately in the center

00521 the brush body 34 arranged free end region

00522 has the hollow shaft 36 in the installed position

00523 exchange brush 32 with the driver 21 in positive engagement

00524 towing driver receptacle 37. An additional radial

00525 support of the brush body 34 is by means of a ring Given 00526 collar 38, which in one of the hollow shaft 36

00527 facing away area within the hollow body

00528 brush body 34 is arranged. 00529

00530 is in the end region having the annular groove 35

00531 replacement brush 32 with a reduction gear

00532 39 trained planetary gear 40 equipped. Last

00533 teres is not shown in detail in the drawing.

00534 Only in FIG. 12 is a planetary gear 40 shown schematically.

00535 indicated table. A transmission of a drive line

00536 stung takes place via the hollow shaft 36, which with the

00537 sun gear 41 of the planetary gear 40 in connection

00538 stands. From there the transmission of the drive line

00539 stung on planet gears 42, the planet gear carrier is connected to 00540 the brush body 34. Here,

00541 follows a reduction in the drive shaft speed of

00542 3: 1 to 4: 1, the directions of rotation of exchange

00543 most 32 and drive shafts 17 are in the same direction. 00544

00545 To effectively massage detergents into

00546 to ensure the carpet is desired that

00547 the bristles 43 of the replacement brushes 32 deeper into the

00548 intervene as the bristles of the suction brushes 28. 00549 This is initially achieved in that the diameter

00550 of the replacement brushes 32 is smaller than that of the suction brush

00551 most 28, measured on the total diameter of the brush

00552 brushes, including their bristles. The difference in diameter

00553 between the two brushes is shown in FIG. 6,

00554 where the radius difference is denoted by a. This

00555 radius difference is approx. 3 - 5 mm. 00556

00557 The replacement brushes 32 are each in a half-shell

00558 len-shaped sleeve 44 added. The length of each

00559 sleeve 44 corresponds approximately to half the length of the suction

00560 mes 14, viewed in the direction of extension. The width 00561 of the sleeve 44 corresponds approximately to the width of the suction space

00562 14. 00563

00564 Seen in cross section, the sleeve 44 is on the outside wall side

00565 U-shaped. The inner surface is circular

00566 designed and has a circumferential extent of more than

00567 180 on. In the exemplary embodiment shown, it is

00568 approx. 240 ^° . The sleeve 44 is open in one end region

00569, here an open-edged recess 44

00570 is provided. This recess 45 extends from

00571 a circumferential end starting at about 45 °. Of this

00572 recess 45 going out, extends in the circumferential direction

00573 a the same width as the receptacle 45

00574 pointing ramp bevel 46. This ramp bevel 46 is

00575 from the original lateral surface of the sleeve 44

00576 inwards, i.e. towards the axis of the

00577 sleeve 44, inclined. 00578

00579 At the end opposite this end area is the

00580 sleeve 44 closed with a front plate 47. Here is

00581 the sleeve 44 formed larger diameter, in which

00582 Transition area from smaller to larger diameter

00583 a further ramp 48 is arranged. 00584

00585 On the outside of the front plate 47 is a film share

00586 nier or the like a handle 49 is provided, which

00587 before in the pivoted position in a corresponding

00588 recess 50 of the plate 47 lies. 00589

00590 Furthermore, the front plate 47 on both sides of the

00591 recess 50 ventilation openings 51 in the form of breakthroughs

00592 Chen provided. The through these vents 51 in

Air entering the interior of the sleeve 44 can be almost 00593

00594 immediately after entering the side

00595 U-webs of the sleeve shell 52 arranged ventilation 00596 ze 53 are discharged. The latter are wedge-shaped in

00597 recessed area of the U-webs of the sleeve shell 52,

00598 with which a soft exit of the air flow from the interior

00599 ren the sleeve 44 is ensured in the outer area.

00600 The air flowing through is

00601 end areas of the provided with the front plate 47

00602 end portion of the sleeve 44 out. 00603

00604 In the interior, the sleeve 44 forms a receiving chamber

00605 54, the inner surface of which, as already mentioned, a

00606 extent of more than 180, here about 240,

00607. In the end face facing the front plate 47

00608 rich is the receiving chamber 54 at a distance from the front

00609 plate 47 provided with a radial projection 55. 00610

00611 The exchange brushes 32 form one with their sleeves 44

00612 assembly. For this purpose, each replacement brush 32 is in its

00613 sleeve 44 inserted, in such a way that the radial forward

00614 jump 55 of the sleeve 44 into the annular groove 35 of the exchange

00615 brush 32 engages, with which an axial securing of

00616 replacement brush 32 is given. Furthermore, it is

00617 replacement brush 32 due to the length of its bristles 43

00618 caught in the sleeve 44. This results from the fact that

00619 the circumferential extent of the inner surface of the sleeve 44, such as

00620 mentioned, has more than 180. The opening 56 of the

00621 sleeve 44 is dimensionally smaller in width than the

00622 velvet diameter of the replacement brush 32, but larger than

00623 the diameter of the brush body 34,

00624 tones, the replacement brush 32 from the sleeve 44, for example

00625 after the brush has worn out, be replaced

00626 can. 00627

00628 For replacing suction brushes 28 with sleeves 44

0Ö629 exchanged brushes 32 is first a housing

00630 seteil 57 of the brush cleaning device 10, which the 00631 area of suction chamber 14 covered by approx. 90

00632 pivots (see FIGS. 12 and 13). This housing part 57

00633 has the already mentioned, with the suction channel 13 or

00634 with the suction chamber 14 communicating openings 27

00635 on. 00636

00637 After swiveling the housing part 57, the suction brush

00638 most 28 detected on the end face and by the drive shafts 17th

00639 can be deducted. Then those with the exchange

00640 most 32 provided sleeves 44 laterally into the suction space 14

00641 are introduced, the exchange brushes 32 over

00642 drive the drive shafts 17. 00643

00644 In Figure 8, an intermediate position is shown, at 00645 the sleeves 44 are partially inserted into the suction chamber 14 00646. Now the sleeves 44 continue in the direction

00647 moved to the translation housing 19 of the drive, so

00648 cause the bevels 48 provided at the end

00649 of the sleeves 44 a vertical displacement of the sleeves 44

00650 down. This is due to the fact that the

00651 outer wall 58 of each sleeve 44 on the inner wall 59

Support 00652 of the suction chamber 14. This vertical shift

00653 down the sleeves 44 also requires a

00654 reduction of the replacement brushes 32, also vertically

00655 below. Those protruding into the replacement brushes 32

00656 drive shafts 17 can on the rocker construction of the

00657 drive, in particular over the bearing axis x of the belt

00658 housing 18, carry out this shift. 00659

00660 In FIG. 9, the brush cleaning device 10 is in one

00661 sectional view shown, the sleeves 44 together

00662 of their replacement brushes 32 completely into the brush

00663 supply device 10 are inserted. It can be seen that

00664 a vertical shift down was carried out. The

00665 sleeves 44 are in their larger diameter end areas. 00666 chen with its outer wall 58 on the inner wall 59

00667 of the suction chamber 14. A further support takes place in the

00668 middle area in which the two sleeves 44 face

00669 side by side. Support is provided here

00670 of the outer wall 58 formed here on the fixing

00671 projection 25 of the suction chamber 14. The recesses 45 of the

00672 sleeve 44 surrounds the belt housing in this position

00673 18 and fix it in a vertically lowest position

00674 lung. The bristles 43 of the replacement brushes 32 kick

00675 hereby caused by the suction opening 31 of the

00676 device base 22. This ensures that the

00677 Massage detergents into carpets

00678 bristles of the replacement brushes 32 deep in the pile of

00679 carpet can penetrate. 00680

00681 Simultaneously with the vertical shift of the exchange office

00682 sten 32 in the lowest position is by the

00683 receiving chambers 54 of the two sleeves 44 formed Bür-

00684 stenraum separated from the original Saugraum 14,

00685 with which there is no suction in the area of this brush room

00686 is done. It is rather the case that a gap 60

00687 by the spacing between the outer wall 58 of the

00688 sleeve 44 and the inner wall 59 of the housing 11

00689 fen, which is a transformation of the suction channel 13th

00690 creates. 00691

00692 The intake air is

00693 most 32 and the associated sleeves 44 on the front side

00694 sleeves 44, in the area of the sleeve-side front plates

00695 47, sucked in, through the ventilation in the corner

00696 ventilation openings 51 and ventilation slots 53 in the intermediate

00697 chamber 60 sucked and then via the suction channel 13

00698 forwarded. In the area of the corner arrangement of

00699 ventilation openings 51 and ventilation slots 53 of the sleeves

00 700 44 brushes the sucked-in air over the reduction gear 00701 drives 39, in particular via the planetary gear 40,

00702 which counteracts overheating of the transmission

00703 is. To enable this air flow, the

00704 housing inner wall 59 corresponding ventilation recess

00705 ungen 61, which the connection between the ventilation

00706 slits 53 of the sleeves 44 and the suction channel 13 and the

00707 Create space 60. 00708

00709 At the same time through the openings 27 of the housing

00710 11 floating fine dust or the like extracted

00711. For this purpose, the suction chamber housing 62

00712 corresponding through holes corresponding to the openings 27

00713 provided openings 63 through which the suction

00714 te air can enter the space 60. 00715

00716 It is conceivable, these openings 63 or the

00717 openings 27 of the housing 11 only when inserted

00718 of sleeves 44 to open. For this purpose, the openings 63

00719 or 27 slider closed, which slider

00720 for example by means of a

00721 ten cam when inserting the sleeve 44 into the suction chamber

00722 14 is shifted to an open position. When the sleeves 44 are removed, it is then conceivable that such a

00724 rather slider spring-assisted in a closed position

00725 moves. 00726

00727 Inserting the replacement brushes 32 causes further

00728 ren setting the suction unit to a low

00729 most powerful. To do this, one or both act

00730 sleeves 44 a switch arranged in the housing 11,

00731 which uses a control line to command the shutdown

00732 ren the performance of the electric vacuum cleaner 1 there. This

00733 power reduction applies only to the

00734 suction power, not on the performance of the separate

00735 15 drives the brush cleaning device 10 to drive 00736 the brushes. It is preferred that the suction line

00737 stung can only be increased again when the

00738 Exchange brushes 32 exchanged for suction brushes 28

00739. The power setting of the vacuum cleaner

00740 remains 32 while the replacement brushes are in use

00741 locked. This also indicates to the user that the

00742 vacuuming the carpet first the brushes

00743 must have been. 00744

00745 Due to the previously described design of the

00746 subject matter of the invention is a brush cleaning device 10

00747 created, both for the usual cleaning of in particular

00748 special carpets, such as suction, as

00749 also for the treatment of carpets with a cleaning

00750 can be used. This is only

00751 the replacement of the usual suction brushes 28 for the in

00752 the exchange brushes 32 received in the sleeves 44

00753 men, whereby the vertical shift into a

00754 lowest position of the brushes and the lifting of the

00755 Suction takes place in the area of the brushes. 00756

00757 The in the above description, the drawing and

Features of the invention disclosed in the claims can

00759 both individually and in any combination for

00760 the realization of the invention may be of importance.

00761 All disclosed features are essential to the invention. In 00762 the disclosure of the application is hereby also

00763 disclosure content of the associated / attached priori

00764 full documents (copy of pre-registration)

00765 included.

Claims

00766 claims 00767

00768 1. Brush cleaning device (10), especially for carpet

00769 floors, preferably with electrically driven brushes

00770 (28), the brushes (28) being mounted so as to be vertically movable

00771, characterized in that the brushes (28) for

00772 Treating the carpet with a detergent

00773 can be locked in a vertically lowest position. 00774

00775 2. Brush cleaning device according to claim 1 or in particular

00776 others thereafter, with suction being carried out at the same time 00777., characterized in that with the fixing

00778 the brushes (28) the suction in the area of the brushes

00779 (28) can be canceled. 00780

00781 3. Brush cleaning device according to one or more of the

00782 preceding claims or in particular according thereto,

00783 characterized in that replacement brushes (32) are provided

00784 are hen and these have a smaller diameter

00785 as the first brushes (28). 00786

00787 4. Brush cleaning device according to one or more of the

00788 preceding claims or in particular according thereto,

00789 characterized in that the replacement brushes (32) with

00790 a closure part for the suction channel (13) of the device

00791 (10) are formed. 00792

00793 5. Brush cleaning device according to one or more of the

00794 preceding claims or in particular according thereto,

00795 characterized in that the closure part the suction box

00796 nal (13) to an outer face of the exchange brush

00797 most (32) transformed. 00798

00799 6. Brush cleaning device according to one or more of the

00800 preceding claims or in particular according thereto, 00801 characterized in that the replacement brushes (32) with

00802 interact with a reduction gear (39). 00803

00804 7. Brush cleaning device according to one or more of the

00805 preceding claims or in particular according thereto,

00806 characterized in that the reduction gear (39

00807 is a planetary gear (40). 00808

00809 8. Brush cleaning device according to one or more of the

00810 preceding claims or in particular according to that

00811 characterized in that the speed of the exchange

00812 sten (32) about a third to a quarter of the rotation

00813 number of the first brush (28) corresponds. 00814

00815 9. Brush cleaning device according to one or more of the

00816 preceding claims or in particular according thereto,

00817 characterized in that the replacement brushes (32) with

00818 about twice the number of bristles compared to the first brushes

00819 (28). 00820

00821 10. Brush cleaning device according to one or more of the

00822 preceding claims or in particular according thereto,

00823 characterized in that each a reduction gear

00824 (39) on an outer face of an exchange brush

00825 (32) is arranged. 00826

00827 11. Brush cleaning device according to one or more of the 00828 preceding claims or in particular according thereto,

00829 characterized in that the drive power means

00830 an inner hollow shaft (36) of the replacement brushes (32)

00831 is transmitted. 00832

00833 12. Brush cleaning device according to one or more of the

00834 previous claims or in particular according to that

00835 characterized in that the hollow shaft (36) with a 00836 output-side planet carrier of the planetary gear

00837 (40) interacts. 00838

00839 13. Brush cleaning device according to one or more of the

00840 preceding claims or in particular according thereto,

00841 characterized in that the replacement brush (32) in

00842 a half-shell-shaped sleeve (44) is received. 00843

00844 14. Brush cleaning device according to one or more of the

00845 preceding claims or in particular according thereto,

00846 characterized in that with an insertion of the sleeve

00847 (44) an outer surface (58) of the sleeve (44) a partial wall

00848 of the suction channel (13). 00849

00850 15. Brush cleaning device according to one or more of the

00851 preceding claims or in particular according thereto,

00852 characterized by the fact that the

00853 nals (14) at least partially the air over the base

00854 tongue gear (39) is guided. 00855

00856 16. Brush cleaning device according to one or more of the

00857 preceding claims or in particular according thereto,

00858 characterized in that the sleeve (44) the outer

00859 end of an exchange brush (32) assigned a casserole

00860 inclined (48), which the

00861 relocation to the vertically lowest position of the

00862 exchange brush (32) provides and at the same time the distance

00863 ation between the outer surface (58) of the sleeve (44) and

00864 an inner surface (59) of the housing (11) for reshaping

00865 of the suction channel (14) creates. 00866

00867 17. Brush cleaning device according to one or more of the

00868 previous claims or in particular according to that

00869 characterized in that two exchange brushes (32) with 00870 a sleeve (44) are provided and that these in

00871 Installed condition face to face. 00872

00873 18. Brush cleaning device according to one or more of the

00874 preceding claims or in particular according to that

00875 characterized in that the inner surface of the sleeve (44)

00876 has a circumferential extent of more than 180 and

00877 that the exchange brush (32) due to its bristle length

00878 is caught in the sleeve (44). 00879

00880 19. Brush cleaning device according to one or more of the

00881 preceding claims or in particular according thereto,

00882 characterized in that the replacement brush (32) by

00883 engagement of a radial projection (55) in an ent

00884 speaking recess (annular groove 35) of the brush body

00885 (34) is axially secured in the sleeve (44). 00886

00887 20. Brush cleaning device according to one or more of the

00888 preceding claims or in particular according thereto,

00889 characterized in that in the housing (11) of the device

00890 tes (10) on a front side at a distance from a lower

00891 edge of the housing (11) openings (27) are provided,

00892 which in any case when replacement brushes are used (32)

00893 have a connection to the suction channel (14). 00894

00895 21. Brush cleaning device according to one or more of the

00896 preceding claims or in particular according thereto,

00897 characterized in that with the insertion of the exchange

00898 most (32) an adjustment of the suction unit on

00899 lowest power level is connected- 00900