WO1995014423A1

WO1995014423A1 - Floor-cleaning device

Info

Publication number: WO1995014423A1
Application number: PCT/EP1994/003552
Authority: WO
Inventors: Wieland Gühne; Gentile Marafante; Mario Tecchiate
Original assignee: Vorwerk & Co. Interholding Gmbh
Priority date: 1993-11-26
Filing date: 1994-10-28
Publication date: 1995-06-01
Also published as: JPH08508665A; DE4340367A1; CN1116818A; DE4340367C2; KR960700021A; EP0681445A1; CA2154758A1

Abstract

The invention relates to a device (G) for cleaning floors with a driven cleaning insert, e.g. a buffing disc, fitted on a supporting disc (10) and a separate front or corner brush (B) which can be releasably switched on, in which, after switching on, the brush (B) is driven via the rotating supporting disc (10) and in which the supporting disc (10) is fitted to a housing (16) forming a bearing axis pin (18). In order to expose the device to the minimum of negative effects in its drive behaviour from an external power feed, the invention proposes that, when the brush (B) is switched on, a direction of the pressing power (F) between a drive wheel (48) acting on the brush (B) and the supporting disc (10) passes through the axis pin (18) or very closely to it.

Description

00001 Floor care device

00002

The invention relates to a device for floor care

00004 a driven, mounted on a carrier disc

00005 Care insert such as a polishing disc and

00006 a separate front or corner brush that can be triggered

00007 can be switched on, with a drive of the after switching on

00008 brush takes place over the rotating carrier disc, whereby

00009 the carrier disc on a device housing with training

00010 fertilized a bearing axis is stored. 00011

Such a trained device for floor care is out

DE-OS 41 10 682 known. Here is a brush and

00014 floor polishing machine shown

00015 which with three brushing or polishing

00016 discs is provided by means of an electric motor

00017 are driven together. In the two front

00018 corner areas, this device is equipped with corner brushes,

00019 which each rests against a spring force

00020 pivotable angular lever are arranged. at

00021 loading of a movable housing part in the form

00022 a front apron are the additional brushes against the

00023 nearest brush or polishing disc in

00024 system brought, with which the additional brushes switched on

00025. 00026

00027 object of the present invention is to provide a generic

00028 to design improved device for floor care,

00029 such that the drive behavior of the device none

00030 negative influences caused by external force

00031 sets is. 00032

This problem is solved by the main claim

00034 specified invention. 00035 00036 The subclaims represent advantageous developments

00037. 00038

According to this embodiment, a device for floor care

00040 ge with a driven, on a carrier disc

00041 stored insert and a separate front or

00042 corner brush created, which has no negative influences due to external force transmission in its drive behavior.

00044 device is exposed. This is solved in that

00045 activation of the brush a force direction of the pressure 00046 force between an output acting on the brush 00047 wheel and the carrier disc through the axis or in a close distance from the axis 00048. The contact point between

00049 the driven wheel assigned to the brush and the carrier

00050 disc and the direction in which the driven gear on the

00051 carrier disk acts are designed so that a resultant

00052 direction of force through the axis or in the near

00053 distance to the axis of the carrier disk. Here-

00054 ensures that when the brush is switched on

00055 there are no negative influences on the carrier disk

Set 00056. This means that the axis

00057 of the carrier disk no or only very low torque

Set 00058 te, which has no negative impact on the

00059 cause behavior of the carrier disc. This is special

00060 is an advantage for devices that have carrier disks

00061 sen, which are pivoted on their pivot point

00062 have pivoting levers, which in turn on a device

00063 bearing axis are stored on the housing. This swivel

00064 at are countered by springs around the respective axes

00065 pressed against each other or against a motor pinion. In the

00066 initially mentioned, known embodiment, the resultant

00067 turing force when switching on the brush in a wide range

00068 distance to the carrier disk assigned to this brush.

00069 This has the consequence that on the pivot lever of the carrier

00070 disc has a relatively large torque, which leads to 00071 a reduction in the contact pressure between the carrier

00072 be and the motor pinion leads. A smooth drive

00073 of the carrier disks when the brush is switched on and off

00074 not given here. The invention turns out to be

Here, too, 00075 is particularly advantageous since the force direction of the contact pressure, as already mentioned, is due to the

00077 axis or at a close distance to the axis of the swivel

00078 bels runs. There is therefore no or only a

00079 dwindling low torque, which is not negative

00080 tiv on the contact pressure between the carrier disc and motor

00081 pinion affects. Switching on the brush thus creates

00082 no slip, so that the carrier disks continuously

00083 at the same speed, regardless of whether the

00084 brush is switched on or off, work. Through this

00085 arrangement ensures that the pressure forces

00086 between the carrier disks and the motor pinion

00087 switching on the brush cannot be changed. This means

00088 tet that no increase in pressure forces between

00089 a carrier disc and the motor pinion, what to

00090 would lead to increased wear of the parts. In front-

Particulously, the training is chosen so that the

00092 resultant force with respect to the axis of the carrier disc

00093 maximum with a deposit of about one eighth of the

00094 knife of the carrier disk runs. Under this shelf

00095 is the vertical line for optimal force direction,

00096 which runs through the axis, where

00097 this distance about an eighth of the diameter of the

00098 corresponds to the carrier disc and, starting from the axis,

00099 runs on both sides of the optimal direction of force. Here-

00100 through results from the contact point of the driven wheel

00101 of the brush to the carrier disc in the area of

00102 axis a scissor-like area in which the

00103 resultant stretches. The size of the shelf is like this

00104 low that there are no negative influences, in particular

00105 negative torques on the carrier 00106 adjust disc. In an advantageous further training

00107 of the subject matter of the invention provides that the

00108 switching of the brush over a on the driven wheel

00109 tension spring takes place. When starting the device against

00110 an object, for example a piece of furniture or

00111 of the like, the brush is placed on the output

00112 radially acting tension spring in the direction of the carrier disc

00113 shifted, after which the carrier disc, the driven gear

00114 brush drives. The brush is now switched on. in the

00115 aforementioned prior art, the connection takes place

00116 the brush over a between the driven wheel and the

00117 movable part of the device housing arranged Druckfe-

00118 the. This has the disadvantage that in the event of excessive

00119 striking the movable housing part of the compression spring

00120 bones and thus the maximum pressure force on the

00121 output gear is transmitted. This leads to an excessive

00122 ßigen stress on the carrier plate, which thus in

00123 their turning behavior is negatively affected. Far

00124 ren there is excessive abrasion of the two

00125 for example with a rubber tread

00126 washer. This is not the case with the invention mentioned

00127 the case. Rather, it is here that excess

00128 Forces, which are particularly strong when bumping

00129 of the device to a piece of furniture or the like

00130 hen, almost completely intercepted by the tension spring

00131. This thought has regarding the task

00132 of the present invention has an independent meaning.

00133 The formation of a front or corner brush in which

00134 connection the force direction of the contact pressure by the

00135 axis or close to the axis of the carrier plate

00136 be runs and the connection of the brush over

00137 a tension spring takes place, is with regard to the drive

00138 keep an optimal solution. Furthermore, with a gat

00139 device according to the floor care, with a

00140 loading of the movable connecting part in 00141 area of the brush of the device the connection of the brush

00142 ste can be triggered, provided that the connecting part

00143 on a substantially perpendicular to the connection direction

00144 arranged axis of rotation is mounted. This connection

For example, 00145 can be a circular projection in 00146 one of the front corner areas of the device, which 00147 is pivotally mounted in the housing of the device. at

00148 Starting the device against a piece of furniture or the like

00149 chen is applied to the connecting part, which is

00150 is now shifted around the axis of rotation and thus

00151 triggers the brush. Advantageously, the

00152 brush in the area of this connecting part

00153 orders. It is conceivable to have a pot-like connecting part

00154 to be provided with a brush arranged therein. Around the brush

00155 to connect the device, it is also provided that

00156 fix the tension spring firmly at one end to the connecting part

00157 is stigt and at the other end on a connecting rod

00158 acts between the driven wheel and the brush. When commissioned

00159 striking the connecting part, for example

00160 Approaching a baseboard, a piece of furniture or the like

00161 chen, the connecting part pivots about its axis of rotation

00162 and drags along with the tension spring

00163 connecting rod between the driven gear and the brush

00164 ste in a switch position with. It is advantageous

00165 this connecting rod also rotatable

00166 mounted, a rotational movement a pivoting of the

00167 driven wheel in the direction of the carrier disc.

00168 In an advantageous further development,

00169 hen that the tension spring in the switched on and off state

00170 the brush under tension on the connecting rod

00171 works. By this measure, the pressure force of the

00172 driven wheel on the carrier disc to avoid

00173 slip or wear predefined. The pressure force

00174 is always between the driven wheel and the carrier disc

00175 predetermined in the minimum value. The maximum pressure force 00176 is determined by the selected spring characteristic.

00177 This training is optimized in that the preload

00178 voltage of the tension spring is received in a clamping part.

00179 This clamping part is on the movable connecting part

00180 mounted and carries the preloaded tension spring, which

00181 the connecting rod between the driven gear and the

00182 brush works. To this end, a connection end projects in an advantageous manner.

00183 way beyond the clamping part. This connection

00184 end of the type, for example,

00185 extension rod that the connecting rod is a pin

00186, around which the connecting end of the tension spring

00187 takes hold. To ensure trouble-free operation when

00188 pivot to ensure the connecting part is

00189 provided that the clamping part on the connecting part

00190 is pivotally mounted. In an advantageous further

00191 formation of the subject of the invention is in a gate

00192 device according to the floor care, the device a

00193 peripheral suction chamber end strip, for example in

00194 in the form of a row of brushes, which is

00195 term support on a floor to a suction room closure

00196 leads, provided that in any case assigned to a

00197 bottom suction opening of the device in the final

00198 bar flow openings are formed by a

00199 recess in the bottom bar in this area

00200 a height that is a fraction, such as the

00201 corresponds to half the height of the end strip. In the

00202 Treatment of a floor, for example a parquet floor

00203 dens, are by means of one or more polishing discs

00204 Particles loosened and suctioned off. These particles can

00205 dirt particles, but also detached particles from floor polish

00206 wax or the like. In order to be able to

00207 intercept particles thrown out galkraft

00208 the device has a peripheral suction chamber end line

00209 ste, for example in the form of a row of brushes. This

00210 thus forms a closed suction space below 00211 of the floor care device, this end strip the

00212 comprises on the carrier disks mounted bean disks.

00213 To increase the suction power of the device, the

00214 suction chamber end strip in the area of a suction opening

00215 of the device with flow openings. In a

00216 preferred embodiment, the device has three in

00217 a triangle arranged on a carrier disk

00218 raked polishing discs, with two polishing discs in the front

00219 area next to each other and a polishing disc in the rear

00220 term area of the device are stored. Here are

00221 provided two suction openings on the bottom of the device

00222 hen, which are in the area of the gusset between

00223 see a front and the rear polishing disc

00224. Each suction opening of the device

00225 flow through openings in the suction

00226 gene assigned. The arrangement is made so

00227 that the particles dissolved during the polishing process in

00228 moves the area of the bottom-side suction openings

00229, after which this is by means of the through-flow opening

00230 conditioned air flow through the

00231 suction openings are removed. The airflow

00232 is so large that the flung to the outside

00233 Do not pass particles through the flow openings

00234 can. The detached particles are extracted

00235 in an optimal way. On the one hand, these parties

00236 kel not outwards, i.e. outside the suction area, 00237, as they are caught by the suction area end strip

00238 gene. On the other hand, the suction power is just in

00239 increased the area in which the detached particles hit 00240. The formation of the suction space end strip in the form

00241 a row of brushes is particularly beneficial because here

00242 a double function is given. The brush row prevents

00243 changes the exit of the particles from the suction

00244 space, and on the other hand, this makes it even

00245 Afterflow of air given the speed 00246 of the air flowing in here is substantially less than 00247 in the area of the through-flow openings of the terminating pipe. The latter can be created in the simplest way

00249 det be that the end strip provided with recesses

00250 hen is, which, starting from the floor, up to about

00251 extend half the height of the end strip. at

00252 the execution of the end strip in the form of a brush

00253 series, the brushes are shortened in the simplest way in the 002.54 area of the throughflow openings. In

00255 a preferred embodiment provides that

00256 the width of the flow opening approximately in the range of

00257 two thirds to four thirds of the end strip is.

00258 Optimal flow conditions are then, for example

00259 given when the height of the flow opening in about

00260 range from a quarter to three quarters of the height of the

00261 end strip lies. The height of the end strip

00262 hits the height visible from the outside. After all it is

00263 still advantageous that a suction opening of the device in 00264 the end strip four to eight flow openings

00265 are assigned. This is the suction of the particles

00266 optimally solved in the simplest way. 00267

The object of the invention is based below

00269 of a graphically illustrated exemplary embodiment

00270 les explained. It shows: 00271

00272 FIG. 1 is a view against one with an inventive

00273 appropriate device for floor care provided dust

00274 sucker, 00275

00276 Figure 2 shows the device for floor care according to the invention in

00277 single display, in a page view

00278 sees 00279

00280 Figure 3 the device in plan view, 00281 Figure 4 shows the floor care device in a perspective

00282 bottom view, 00283

00284 Figure 5 is a further bottom view of the device, 00285

00286 FIG. 6 shows a representation corresponding to FIG. 5,

00287 however with removed bean slices and

00288 base plate, here for improved presentation

00289 position a carrier disc partially broken

00290 is 00291

00292 FIG. 7 shows an enlarged detail from FIG.

00293 representation of a corner area, here

00294 a corner brush in the switched-off state

00295 shows 00296

00297 Figure 8 is a further enlargement of the corner area

00298 with respect to FIG. 7, 00299

00300 Figure 9 is a follow-up view of Figure 8, being here

00301 the corner brush is switched on, 00302

00303 Figure 10 is a perspective view of the area

00304 according to FIG. 8, but omitting

00305 housing and connecting part, 00306

00307 FIG. 11 shows a representation corresponding to FIG. 7,

00308, however, relates to the representation according to FIG.

00309 fend, 00310

00311 Figure 12 is a follow-up view of Figure 9, 00312

00313 Figure 13 is a schematic diagram of the power transmission

00314 loading of the arranged in the corner area 00315 th connecting part, which is the corner brush

00316 switches on and 00317

00318 Figure 14 is an exploded perspective of the components of the

00319 corner brush drive. 00320

00321 Shown in FIG. 1 is a device designed as a hand-held device.

00322 ter electric vacuum cleaner 1. This has a housing 2,

00323 to which a stem 3 is connected at the top with ends

00324 like handle 4. In the transition area between handle 4 and

00325 stick 3 there is an on / off switch 5. The elec-

00326 Trokabel connection is designated by the number 9. 00327

00328 The housing 2 is divided into a motor housing 6 and

00329 an overlying chamber 7 for receiving

00330 of a dust filter bag, not shown. The engine

00331 blower is also not drawn in detail

00332 reproduced. 00333

00334 The motor housing 6 goes into a pipe coupling on the underside

00335 8 over which the air flow connection to a floor

00336 maintenance device G. 00337

00338 The floor care device G is a po

00339 lier or so-called floor polisher, which three common

00340 sa driven carrier disks 10 has. Latter

00341 extend recessed behind a housing

00342 base plate 11 which can be inserted into the housing and which

00343 corresponding cut openings 12. 00344

00345 The individual carrier disks 10 each have a care insert

00346 in the form of a polishing disc 13 by means of a clip connection

00347 assigned fertilizer. It is a reversible one

00348 clip connection. 00349 00350 The carrier disks 10 are driven by a motor

00351 pinion 14. The carrier disks 10 are radial for this

00352 provided on the outside with a rubber-like ring running surface 15.

00353 The arrangement of the carrier disks 10 within the housing

00354 ses 16 of the floor care device G is such that

00355 a carrier disk 10 with its ring running surface 15

00356 on the ring running surfaces 15 of the two other carrier

00357 ben supports, these two other carrier disks

00358 10 with their ring running surfaces 15 the motor pinion 14 radi-

Apply 00359 al. The electrically powered motorcycle

00360 zel 14 thus causes all three to rotate evenly

00361 Carrier washers 10. 00362

00363 Each carrier disc 10 is on a pivot lever 17th

00364 mounted, which is pivotable about an axis 18

00365 is stored on the side. The three carrier disks 10 are

00366 about this pivotable pivot lever 17 by means of

00367 housing 16 arranged tension springs 19 against each other or

00368 pressed against the motor pinion 14. So it is always

00369 pressing the carrier disks 10 against one another or

Given 00370 against the motor pinion 14, even for longer

00371 Time-consuming wear of the ring running surfaces 15. 00372

00373 The belly-like housing 16 of the floor care device G

00374 has a ring-like suction channel 20 which is connected to a

00375 ends in a flexible channel 21, which over

00376 a connector 22 with the pipe coupling 8 of

00377 electric vacuum cleaner 1 is connected. The ring art

00378 ge suction channel 20 has three suction openings on the bottom

00379 gen 23 to 25. 00380

00381 The carrier disks 10 are arranged in a triangular shape,

00382 wherein two carrier disks 10 side by side and vertically

00383 for the main direction of movement of the floor care

00384 devices G are arranged horizontally, in the area of 00385 Front of the floor care device G. The third carrier disc

Accordingly, 00386 10 is centered in the rear

00387 area of the floor care device G. The suction openings 23

00388 and 24 are in the gusset between a front and

00389 the rear carrier plate 10 is arranged. You point

00390 a circular cross section. The third intake

00391 tion 25 is located in the front area of the floor care

00392 advises G, directly behind the housing front wall

00393 fertilizer, with a short distance to this. This intake

00394 tion 25 has an elongated hole-like opening. The decreasing

00395 bare base plate 11 is provided with corresponding

00396 end connections equipped so that the intake openings

00397 gen 23 to 25 extend into this base plate 11

00398 ken. To improve the suction power, the

00399 base plate 11 in the area of its suction openings 23 and 00400 24, fan-shaped suction chamfers widening outwards 00401 gen 26, 27.

00402

00403 The housing is 16 in the two front corner areas

00404 of the floor care device G optically interrupted, for

00405 would take of pivotable connecting parts 28, which at

00406 Activate the corner brushes B. 00407

00408 As can be seen in particular from FIGS. 1 to 5,

00409 has the floor care device G on the underside

00410 form a suction space closure to the floor to be maintained-

00411 en suction chamber end strip 29 in the form of a brush

00412 he. This suction chamber end strip 29 is on the floor

00413 plate 11 on the outside edge, the contour of the floor care

00414 advises G accordingly, arranged, the bar 29th

00415 only in the area of the pot-like connecting parts 28

00416 is interrupted. On the one hand, this results in a

00417 U-shaped end strip 30 and one of the front contour of the

00418 housing 16 adapted bar 31, which to the front of the housing

00419 wall is arranged spaced. This bar is 31 00420 in the main direction of movement of the floor care device G

00421 upstream another brush strip 32. Between

00422 strips 31 and 32, the suction opening 25 is formed.

00423 The two end strips 31 and 32 extend in the

00424 front area of the housing 16 between the two pot-like

00425 gene connecting parts 28. 00426

00427 The strip 32 has an edge open towards the bottom

00428 recess 33, which is arranged in the center and itself

00429 extends over approximately three quarters of the length of the strip 32 00430. The height of the recess corresponds approximately to that

00431 half the height of the bristle strip 32. The bristles of the

00432 bristle strip 32 are for this purpose to form the

00433 mung 33 shortened. The latter is mainly used to 00434, larger when working with the floor care device G.

00435 to be able to run over dirt particles, which immediately over

00436 the suction opening 25 are removed and not in the

00437 area of the rotating bean disks 13 arrive. This 00438 would cause damage, especially scratches in the 00439 floor.

00440

00441 To increase the suction power of the floor care device G,

00442 has the suction chamber end strip 30 in the area of

00443 suction openings 23 and 24 flow openings 34. Die

00444 wax particles removed from the ground of the soil or

00445 of the like are accelerated outwards by the rotating polishing discs 00446 13 and then prevented on the one hand by the 00447 suction chamber end strip 30 from escaping from the 00448 suction chamber and on the other hand by the suction openings.

00449 suctioned 23 and 24. Due to the increased airflow

00450 in the area of the flow openings 34, in particular in the

00451 area of the intake slopes 26 and 27, is an optimal

00452 extraction of the removed particles reached. such

00453 flow openings 34 are also in the rear area

00454 of the floor care device G and in the front bar 31 00455 provided. The width of each flow opening 34

00456 corresponds to approximately two thirds of the visible

00457 height of the end strip 29, the height of the through

00458 flow opening 34 about half the height of the end line

00459 corresponds to 29. 00460

00461 The in the front corner areas of the floor care device

00462 G arranged corner brushes B can be switched on, for improved

00463 serten floor care in the area of skirting boards, furniture

00464 pieces or the like. 00465

00466 Such a corner brush B consists essentially of

00467 several bristles arranged on a carrier plate 35

00468 bundle 36. On the 36 opposite the bristle bundles

00469 th side is a ring gear 37 on the carrier plate 35

00470 arranged. A bearing journal 38 sits axially in this

00471 a press fit. The corner brush B is over the bearing

00472 fen 38 stored in a pivot lever 40 and by means of

00473 secured a spring ring 41. The pivot lever 40 is

00474 designed as a connecting rod 39, the swivel

00475 lever 40 in the area of the storage of the corner brush B in

00476 is substantially cylindrical shaped to form a

00477 ring collar 42. Starting from this cylindrical part

00478 extends a lever 43 which forms a further cylindrical receptacle 44 in the region of its Ö0479 free end. In the extension of the lever 43, the cylindrical receptacle 44 is molded onto a radial collar 45. in the

00482 area of the lever 43 is a penetrating one

00483 pin 46 arranged. 00484

00485 In the cylindrical receptacle 44 is a bearing pin

00486 fen 47 mounted an output gear 48, which means

00487 a spring ring 49 is axially secured. On the lower

00488 side has the driven gear 48 with the ring gear

00489 37 of the corner brush B corresponding gear 50. 00490 is the assembly composed of the corner brush B, the swivel lever 40 and 00491 the driven gear 48

00492 pivotally mounted in the corner region of the housing 16 by

00493 from the housing-side ceiling clips 51 den

00494 ring collar 42 of the pivot lever 40 include. The rotary axis

00495 se x of the corner brush B also forms the swivel axis

00496 se of the pivot lever 40. The axis of rotation of the driven wheel

00497 48 is designated y and is due to the dialed

00498 arrangement, regardless of the pivoting of the swivel

00499 hebeis 40, always equally spaced from axis x, with what

00500 always the engagement between the gear 50 and the gear

00501 wreath 37 of the Eσk brush B is guaranteed. 00502

00503 The connecting part 28 has an essentially pot-like

00504 shape, which over the housing contour of the bottom

00505 care device G protrudes in the corner areas. This

00506 connecting part 28 is via a housing-side pin

00507 52 stored in the area of a corresponding receptacle 53.

00508 As can be seen from Figure 8, the axis of rotation z of the

00509 connecting part 28 in the disconnected state of

00510 corner brush B at an angle of approx. 135 ° to the axis y of the

00511 driven wheel 48, based on the axis x of the corner brush

00512 B. The axis z of the connecting part 28 is essentially

00513 are perpendicular to the direction of connection of the corner brush B. 00514

00515 The connecting part 28 has an actuating arm 54,

00516 which has a recess 55. In this exception

00517 55 a pivot pin 56 is provided. 00518

00519 In the recess 55 is a clamping part 57, which

00520 by means of a corresponding receptacle 58 on the swivel

00521 pin 56 is mounted. An axial securing of the clamping

00522 part 57 takes place via a clip 59, which engages in a 00523 corresponding recess in the actuating arm 54 00524. This recess is designed so that a 00525 pivot the clamping part 57 in the region of the recess

00526 55 is guaranteed, the pivoting path through the

00527 wall of the recess 55 is limited. 00528

00529 The tension member 57 receives a tension spring 60 which

00530 is inserted under tension. On the one hand, this includes

00531 tension spring with a ring end 61 the receptacle 58 of the tension

00532 part 57. At the other end, a connection end 62 protrudes

00533 the clamping part 57, here the clamping part 57

00534 has corresponding recesses. 00535

00536 The one stored in the housing 16 of the floor care device G.

00537 connecting part 28 comprises in the area of its pot-like

00538 contour which consists of corner brush B, swivel lever 40 and

00539 output gear 48 assembly. Here-

00540 grips the connection protruding from the clamping part 57

00541 end of the tension spring 60 the pin 46 of the pivot lever

00542 40.00543

00544 The connecting part 28, as can be seen in FIG. 8,

00545 by means of a further tension spring 63, which one end

00546 is fixed on the housing side and at the other end in the area

00547 of the actuating arm 54 of the connecting part 28

00548 engages, held in a switch-off position. 00549

00550 The pivotability of the connecting part 28 is

00551 impact limited. 00552

00553 When the connecting part 28 approaches a

00554 Skirting board, a piece of furniture or the like will

00555 connecting part 28 pivoted about its axis z, with what

00556 which are attached to the actuating arm 54 via the clamping part 57

00557 arranged tension spring 60 the pivot lever 40 about the axis x

00558 relocated. As soon as the driven wheel 48 on the ring running surface

00559 before 15 of the carrier disk assigned to this corner brush B. 00560 10, the rotary movement of the carrier disk 10

00561 on the output gear 48 and the gear connection

00562 transfer the corner brush B so that it too

00563 turns. Now the floor care device G will continue

00564 moved against the obstacle, the connection pivots

00565 manure part 28 further about the axis z. The arising here

00566 the excess forces that are not in the carrier

00567 disk system to be initiated are almost

00568 completely absorbed by the prestressed tension spring 60

00569 men (see Figure 12). 00570

00571 When moving the floor care device G away from the obstacle

00572 nis away, the connection part is reset

00573 28 by means of the spring 63 in the basic position, here

00574 the tension spring 60 relaxes in the clamping part 57 and

00575 the pivot lever 40 about the clamping part 57 about the axis x

00576 is shifted back to the starting position. 00577

00578 In Figure 13 is shown schematically how the forces

00579 when the connecting part 28 is loaded into the carrier

00580 disc system work. The dot-dash is here

00581 acted position shown. When the

00582 connecting part 28 and the associated pressing

00583 of the driven wheel 48 on the ring running surface 15 of the carrier

00584 disc 10 creates a contact pressure, which is a force

00585 direction that optimally through the

00586 axis 18 of the pivot lever 17 extends. The contact pressure

00587 is designated with F. However, this can also in the near

00588 distance to the axis 18. However, this is maximum

00589 with a deposit of about one eighth of the diameter

00590 of the carrier disk 10. This shelf is in FIG. 13 with A

00591. This creates a from the contact point P.

00592 outgoing, scissor-like area in which the

00593 Direction of force of the contact pressure F runs. 00594 00595 The position of the swiveling

00596 lever 17 is selected so that the forces corresponding to the

00597 torques to be transmitted act in the system. The

00598 pivot lever axes 18 are arranged so that these in

00599 the line of force initiated by the drive wheel system

00600 th external force or close to the

00601 line of force. This ensures that the

00602 pressure forces between the carrier disks 10 and

00603 motor pinion 14 or between two carrier disks 10

Do not change 00604 with the corner brush system. So it is

00605 slip or increased wear of the ring

00606 treads 15 of the carrier disks 10 counteracted. 00607

00608 The in the above description, the drawing and

Features of the invention disclosed in the claims can

00610 both individually and in any combination for

00611 the realization of the invention may be of importance.

00612 All disclosed features are essential to the invention. In

00613 the disclosure of the application is hereby also

00614 disclosure content of the associated / attached priori

00615 full documents (copy of the pre-registration)

00616 included.

Claims

00617 claims 00618

00619 1st device (G) for floor care with a driven,

00620 care insert mounted on a carrier disc (10)

00621 such as a bean slice (13) and one

00622 separate front or corner brush (B) that can be triggered

00623 can be switched on, with a drive of the after switching on

00624 Brush (B) over the rotating carrier disc (10)

00625 follows, with the carrier disc (10) on a device housing.

00626 se (16) mounted to form a bearing axis (18)

00627, characterized in that when the 00628 brush (B) is switched on, a direction of force of the contact pressure (F) between 00629 see an output wheel acting on the brush (B)

00630 (48) and the carrier disc (10) through the axis (18)

00631 or runs close to the axis (18). 00632

00633 2. Device according to claim 1 or in particular according thereto,

00634 characterized in that the resultant force (F)

00635 with respect to the axis (18) of the carrier disk (10) a maximum of 00636 with a shelf (A) of approximately one eighth of the diameter of the carrier disk (10).

00638

00639 3. Device according to one or more of the preceding

00640 claims or in particular according thereto, characterized

00641 net that the connection of the brush (B) on a

00642 the output gear (40) acting tension spring (60). 00643

00644 4. Device according to one or more of the preceding

00645 claims or in particular according thereto, wherein via a

00646 loading of a movable connecting part (28)

00647 in the area of the brush (B) of the device (G)

00648 device of the brush (B) can be triggered, characterized 00649 net that the connecting part (28) on a substantially

00650 axis of rotation arranged perpendicular to the switching direction

00651 se (z) is stored. 00652 5. Device according to one or more of the preceding

00653 Claims or in particular according thereto, characterized

00654 net that the tension spring (60) firmly at one end on the connection

00655 manure part (28) is attached and at the other end to one

00656 connecting rod (39) between the driven gear (48) and

00657 the brush (B) works. 00658

00659 6. Device according to one or more of the preceding

00660 claims or in particular according thereto, characterized

00661 net that the tension spring (60) switched on and off

00662 condition of the brush (B) under tension on the connection

00663 extension rod (39) acts. 00664

00665 7. Device according to one or more of the preceding

00666 claims or in particular according thereto, characterized

00667 net that the bias of the tension spring (60) in one

00668 clamping part (57) is added. 00669

00670 8. Device according to one or more of the preceding

00671 claims or in particular according thereto, characterized

00672 net that a connecting end (62) of the tension spring (60) over

00673 the clamping part (57) protrudes. 00674

00675 9. Device according to one or more of the preceding

00676 claims or in particular according thereto, characterized

00677 net that the clamping part (57) on the connecting part (28)

00678 is pivotally mounted. 00679

00680 10. Device according to one or more of the preceding

00681 Claims or in particular according thereto, wherein the suction device

00682 a peripheral suction chamber end strip (29), for example

00683 has in the form of a row of brushes, which by

00684 end support on a floor to a suction chamber

00685 leads, characterized in that in any case

00686 assigned to a suction opening on the bottom (23, 24) 00687 of the device (G) in the cover strip (29)

00688 openings (34) are formed by a recess in

00689 the end strip (29) in this area with a

00690 height, which is a fraction, for example half, of

00691 height of the end strip (29) corresponds. 00692

00693 11. Device according to one or more of the preceding

00694 claims or in particular according thereto, characterized

00695 net that the width of the flow opening (34) approximately in

00696 range from two thirds to four thirds the amount of

00697 end strip (29) lies. 00698

00699 12. Device according to one or more of the preceding

00700 claims or in particular according thereto, characterized

00701 net that the height of the flow opening (34) in about

00702 range from a quarter to three quarters of the height of the

00703 end strip (29). 00704

00705 13. Device according to one or more of the preceding

00706 claims or in particular according thereto, characterized

00707 net that a suction opening (23, 24) of the device (G) in

00708 of the end strip (29) four to eight flow openings

00709 gen (34) are assigned.