WO1996011622A2

WO1996011622A2 - Brush vacuum cleaner

Info

Publication number: WO1996011622A2
Application number: PCT/EP1995/003979
Authority: WO
Inventors: Andreas Schmoll; Jürgen Thode; Antonio Delgado; Ralf Wollsdorf; Ludger Helmes
Original assignee: Vorwerk & Co. Interholding Gmbh
Priority date: 1994-10-14
Filing date: 1995-10-10
Publication date: 1996-04-25
Also published as: DE59506807D1; EP0785745B1; ATE184170T1; WO1996011622A3; DK0785745T3; DE4436836A1; AU3804695A; EP0785745A2; GR3031606T3; ES2136312T3

Abstract

The invention relates to a brush vacuum cleaner (1) for the care of carpets or hard flooring, with a rotating brush (4) drivable by an electric motor, and with brushing bristles (3), in which the brushing bristles (13) can be moved vertically by the actuation of a switch between a lowered position bearing on the floor and a raised position and a motor and the brushing bristles can be operated by means of a foot switch. The invention deals with the technical problem of improving the design of a prior art type of brush vacuum cleaner (1). To this end, it is proposed that a motor switch (7) be arranged in the base plan region of a brushing bristle switch (6) and the motor switch (7) pass through the brushing bristle switch (6).

Description

00001 Suction brush device

00002

The invention relates to a suction brush device for care

00004 of carpets or hard floors, with one over an elec

00005 tromotor driven, rotating brush and with boron

00006 most, the bristles vertically between a lowered

00007 ten, when a switch is actuated, on the floor

00008 lying and a raised position are movable,

00009 with a motor and the bristles over a foot

00010 switches are actuated. 00011

00012 A suction brush device of this type is not known from the

00013 published European patent application 94 109

00014 593.7 known. The content of these European patent applications

00015 avoidance will be fully contained in the disclosure-

00016 of the application, also in such a way that in combination

00017 tion with features from this earlier patent application in

00018 present patent application claims are made

00019 den. Further attention is drawn to the documents of the German

00020 utility model 93 09 459 and the German patent application

00021 fertilizer 44 03 971. Even the content of this

00022 writings is fully available in the disclosure

00023 gender registration, also in the above

00024 senses, included. 00025

00026 The invention is concerned with the technical pro

00027 blematik, a suction brush device as known as

00028 is exposed to train cheaper. 00029

00030 This technical problem is first and foremost

Resolved in the subject matter of claim 1, wherein

00032 is based on the fact that the motor switch in the floor plan

00033 area of the bristle switch is arranged and that the

00034 motor switch penetrates the bristle switch. On the one hand

00035 is hereby created a space-saving arrangement, 00036, on the other hand, allows the user to use the engine

To be operated separately via the engine switch, with and

00038 without simultaneous actuation of the bristle switch. In

00039 further embodiment, the invention proposes that

00040 the bristle switch interacts with a catchment,

00041 the bristle switch when the

00042 bristles is caught in the catch and at one

00043 Deactivation of the bristles solved by the catch backdrop

Is 00044. The catch backdrop looks with a declining

00045 extension, for example pin-like extension, on the foot switch

00046 together. It is only spring-loaded

00047 location pushed back by the extension and then snaps

00048 on the extension. Relieves when the switch is relieved

00049 this back and moves into a positive locking

00050 in the catchment. On another depression

00051 ken of the foot switch, the catchment is one

00052 further angular movement moves, causing the extension in

00053 comes up a free area, or in one

00054 deflector-like area, so that at one

00055 another release of the foot switch this again

00056 can move back to its original position. The Fangku

00057 lisse is accordingly in a catch position and also in

00058 biased a release position. In another special

Unit is also provided that when the

00060 bristle switch from a deactivation position of the

00061 bristles in an activation position of the bristles

00062 leading action on the motor switch takes place. The

00063 motor switch, which is partly below the

00064 bristle switch extends from the bristle switch

00065 with an actuation extension. Because about it

00066 both switches can be moved, for example, via a circular path

00067 and the centers of this circular path are different

Are borrowed 00068, the arrangement can be such that at

00069 a movement of the bristle switch on a circular path

00070 the actuation extension to a central axis of the 00071 circular path of the motor switch moves, causing the

00072 leading actuation is achieved. Motor switch 00073 can be in an activated position of the bristles in a

00074 plane extension of an actuating surface of the bristle

00075 switch may be included or are below.

00076 in that the motor switch in the plane extension

00077 is recorded, it is no longer operated automatically

00078 bar. At the same time, however, the operating area of the

00079 bristle switch closed and does not have one

00080 gap. Nevertheless, it is possible that the engine

00081 switch also under the operating surface of the boron

00082 switches. It is also provided how

00083 also in the European already mentioned above

00084 patent application already described that the bristle

00085 switch acts on a linkage and via this

00086 rods on the bristles. To here at the interface

00087 between the bristle switch and the linkage

00088 gave little required movement of the bristle

To reach 00089 ters in the direction of actuation of the boom,

00090 on the other hand the necessary movement of the boom

00091, which is essentially immediately on the movement

00092 of the bristles is transferred to ensure beats

00093 the invention also proposes that the linkage has a backdrop-like

Has a recess in which one end of the bristle

00095 ters engages like a backdrop stone. Further is the coolie

00096 se aligned so that with a rotational movement of the

00097 bristle switch the sliding block-like end itself in

00098 essentially vertical, but on a circular path,

00099 moves, due to the backdrop design of the

00100 rod this must evade. The individual is

00101 bristle switch lever-shaped, with a short

00102 and a long lever arm, the lever in one

00103 pivot point of the bristle switch, in which also a

00104 axis of rotation is arranged to coincide. The backdrop

00105 stone-like end of the bristle switch is on the short 00106 lever arm formed. It is also important that the

00107 backdrop or the linkage in a bristle deactivation

00108 position are biased. Because of the described

00109 scenery execution is also at the same time, over the

00110 leverage, a bias of the bristle switch in

00111 reached the deactivation position of the bristles. 00112

The invention is further based on the

00114 attached drawing, but only an embodiment

00115 example illustrates explained. Here shows: 00116

00117 Figure 1 is a schematic cross-sectional view

00118 a suction brush device; 00119

00120 Figure 2 is an enlarged, partial view

00121 of the right part, with deactivated bristles

00122 or sealing lips; 00123

00124 Figure 3 is a representation according to Figure 2, with activated

00125 th bristles or sealing lips. 00126

00127 Shown and described is a suction brush device 1,

00128 which consists essentially of a housing 2, which in

00129 suction chamber 3 arranged brush roller 4 and a - in

00130 individual not shown - arranged in the housing

00131 separate drive. The drive drives over a belt

00132 men 5 the brush roller 4. The separate drive is

00133 further via an electrical connection, not shown

00134 can be connected to an electric vacuum cleaner. 00135

00136 The suction brush device also has a bristle switch

00137 6, and a motor switch 1, which the bristle

00138 switch 6 interspersed. For this, in the bristle scarf

00139 ter 6 formed a recess 8. On the one hand, the

00140 motor switch 7 with its full, in the sectional drawing 00141 voltage shown, projecting upward the

Push through bristle switch 6. On the other hand, it is too

00143 possible that the motor switch 7 only partially the boron

00144 switch 6 interspersed. 00145

00146 The bristle switch 6 is designed overall lever-like

00147 det, with a long operating surface

00148 lever arm and a short lever arm 9. Next is the

00149 bristle switch 6 about an axis of rotation 10 which between the

00150 short and the long lever arm is arranged, movable. 00151

00152 Via a sliding block-like end 11 on the short

00153 lever arm 9 acts the bristle switch with a linkage

00154 12 (see also Fig. 1) together, which on the one hand

00155 front bristles 13 and the other on a rear

00156 sealing lip 14 acts. "Front" and "rear" refers

00157 relates to the brush roller 4 or the suction chamber 3.

00158 As can further be seen from FIG. 1, the bristles 13

00159 also via a compression spring 14 in its lowered position

00160 biased. 00161

00162 As further shown in detail in FIGS. 2 and 3

00163 is loaned, the motor switch 7 is in turn via a

00164 itself essentially below and in the unactuated

00165 position also substantially parallel to the bristle

00166 switch-extending articulation part 15 in its own

00167 axis of rotation 16 mounted. The axis of rotation 16 is offset

00168 (horizontal and preferably also vertical) to the rotary axis

00169 se 10 arranged. The offset here corresponds approximately

00170 the dimension of the diameter of axis 10 or axis 16. 00171

00172 The bristle switch 6 also detects one

00173 actuating extension 17 projecting below, which actuates

00174 end 18 has. The actuating end 18 can

00175, for example, as a laterally projecting cantilevered stub axle 00176 be formed. The actuation extension 18 penetrates

00177 in view of the arrangement of the bristle

00178 ter 6 and the motor switch 7 or its extension

00179 15 an opening 19 in the motor switch 7. 00180

00181 When the bristle switch 6 is actuated

00182 actuation extension 17 or the actuation tip 18 in

00183 interaction with a catch cow arranged below

00184 lisse 20. The catch link 20 is rotatable about an axis 21

00185 bar and in their position shown in FIG.

00186 spans. The actuating tip 18 hits a

00187 press the bristle switch 6 onto the control cam 22

00188 of the catchment 20. As a result, the catchment 20

00189 against the arrow direction shown in Figure 2

00190 moved to the left about axis 21. The movement takes place around

00191 such a measure until a tip 23 of the control curve 22nd

00192 the actuation tip 18 of the actuation extension 17th

00193 of the foot switch 6 can overflow, whereupon the safety catch

00194 read 20 again in the direction of the arrow according to the figure

00195 2 moves and finally that shown in Figure 3

00196 takes position. If the foot switch 6 is then released

00197 stet, the actuating tip 18 in the below

00198 the control curve 22 formed in the catch 20

00199 catch throat 24 caught, as shown in Figure 3. at

00200 a repeated actuation of the bristle switch 6

00201 now hits the actuating tip 18 on an essentially

00202 chen then opposite catch nose 25th

00203 of the catchment 20.

00204 tiger tip 18 moved out of the catch throat 24

00205, another movement of the catchment 20 is in

00206 arrow direction allows so that the actuating tip

00207 18 then comes into alignment with the deflector 26. The

00208 deflector 26 is - with reference to the accompanying drawing

00209 the drawing plane bent down so that at

00210 then releasing the bristle switch 6 00211 the actuating tip 18 in cooperation with the

00212 deflector 26 comes and due to a certain flexibility

00213 did somewhat laterally in the actuation extension 17

00214 can be steered and thus back out of the catching backdrop

00215 20 can extend completely. In the position that

00216 is shown in Figure 2. 00217

00218 It can also be seen from FIGS. 2 and 3 that

00219 on the underside of the bristle switch 6 a deflection projection

00220 and 27 is formed. Due to the offset arrangement

00221 tion of axes 10 and 16 to each other as well as due

00222 a run-up slope 28 formed on part 15

00223 results when the bristle switch 6 is actuated

00224 leading movement of the motor switch 7. The geometry

00225 is chosen so that the

00226 switching position according to Figure 3 is a substantially flat

00227 closure between an actuating surface of the bristle

00228 switch 6 and an actuating surface of the motor switch

00229 ters 7 results. 00230

00231 A link 29 is also formed on the linkage 12.

00232 det, with a the end of the short lever arm 9 of the

00233 bristle switch 6 associated sliding block 30 together

00234 acts. The sliding block 30 is here as well

00235 cantilevered axle stub formed. The fact that a

00236 - substantially U-shaped - opening of the backdrop 29 in

00237 unactuated state of the bristle switch 6 (FIG. 2)

00238 at an angle of 45 to the horizontal, on the

00239 bristle switch 6 is arranged, arranged, and

00240 due to the angling of the short lever arm 9 with respect to

00241 of the long lever arm of the bristle switch 6 a certain

00242 circular movement of the short lever arm 9 and in particular

00243 of the sliding block 30 results, however, due to the

00244 selected radii is relatively flat, a

00245 equally strong deflection of the backdrop 29 at one 00246 actuation of the bristle switch 6, with a lot

00247 less actual lateral movement (related

00248 on the drawing) of the sliding block 30. Next is

00249 also - which is not shown in detail in the drawing

00250 is - provided that the backdrop 29 with the associated

00251 linkage in a deactivation position of the bristles 13

00252 or the sealing lip 31 is biased. Furthermore

00253 is also essential that due to the already described

00254 Nen alignment of the backdrop recess in the backdrop 29th

00255 in the position according to FIG.

00256 see the backdrop 29 and the backdrop stone 30 vertically

00257 is free of forces. Specifically, the angle between that

00258 short and the long lever arm of the bristle switch 6

00259 based on the circular path on which the backdrop

00260 29 moves, chosen so that a resulting force in

00261 essentially goes through the center of axis 10

00262 of the position according to FIG. 2. This has a practical effect

00263 no vertical forces on the bristle switch 6 in this

00264 position on. 00265

00266 In addition, that is at the exit of the scenery opening

00267 of the backdrop 30 formed contact surface 32 by Bedeu-

00268 tung. As can be seen from Figure 2, extends

00269 this surface 32 in the switch position according to FIG

00270 essentially vertical. This is a dead center

00271 possible with hard floor position of the bristles or lip

00272 loan. There is no torque during a kick test

00273 on the bristle switch 1 and therefore no additional

00274 force on the catch 20 or the actuating tip

00275 18. 00276

00277 This contact surface 32 is also important in terms of

00278 device that when unlocking the required overstroke

00279 the bristle button 1 or also for locking the bristle 00280 button 1 no further twisting of the linkage 12

00281 follows. 00282

00283 The method of the engine switch 7 between a clearly

00284 borrowed from the actuating surface of the bristle switch 6

00285 outstanding position according to Figure 2 and one in this

00286 recorded position according to Figure 3 gives a user

00287 an indication of whether the device is in hard floor operation or

00288 is in carpet operation. 00289

00290 All disclosed features are essential to the invention. In 00291 the disclosure of the application, the 00292 disclosure content of the associated / attached priori

00293 documents (copy of the pre-registration)

00294 also included, for the purpose of, characteristics of this

00295 documents in claims of the present application with to be

Take 00296.

Claims

00297 A N S P R Ü C H E 00298

00299 1. Suction brush device (1) for the care of carpets or

00300 hard floors, with a drive via an electric motor

00301 ren, rotating brush (4) and with bristles (13), wherein

00302 the bristles (13) vertically between a lowered,

00303 lie on the floor when a switch is actuated

00304 and a raised position are movable, wherein

00305 further a motor and the bristles via a foot switch

00306 can be actuated, characterized in that a motor

00307 switch (7) in the plan area of a bristle switch

00308 (6) is arranged and that the motor switch (7)

00309 bristle switch (6) penetrated. 00310

00311 2. suction brush device (1) according to claim 1 or in particular

00312 re thereafter, characterized in that the bristle scarf

00313 ter (6) cooperates with a catch backdrop (20), wherein

00314 the bristle switch (6) upon activation of the bristle

00315 most (13) is caught in the catch backdrop (20) and at

00316 a deactivation of the bristles (13) from the catch backdrop

00317 (20) is released. 00318

00319 3. Suction brush device (1) according to one or more of the

00320 preceding claims or in particular according thereto,

00321 characterized in that the catch link (20) in a

00322 catch position is biased. 00323

00324 4. Suction brush device (1) according to one or more of the

00325 preceding claims or in particular according thereto,

00326 characterized in that when the bristle

00327 switch (6) from a deactivation position of the boron

00328 sten (13) in an activation position of the bristles (13)

00329 a leading action on the motor switch (79

00330 is done. 00331 00332 5. Suction brush device (1) according to one or more of the

00333 preceding claims or in particular according thereto,

00334 characterized in that the motor switch (7) in one

00335 activation position of the bristles (13) in a plane

00336 extension of an actuating surface of the bristle switch

00337 (6) is included or is below. 00338

00339 6. Suction brush device (1) according to one or more of the

00340 preceding claims or in particular according thereto, wherein

00341 the bristle switch (6) further via a linkage (12)

00342 acts on the bristles (13), characterized by

00343 backdrop (29) and backdrop stone-like (30)

00344 kung between the bristle switch (6) and the rod

00345 (12). 00346

00347 7. Suction brush device (1) according to one or more of the

00348 preceding claims or in particular according thereto,

00349 characterized in that the link (29) on the frame

00350 ge (12) is formed. 00351

00352 8. Suction brush device (1) according to one or more of the

00353 preceding claims or in particular according thereto,

00354 characterized in that the backdrop (29) or

00355 linkage (12) in a bristle deactivation position

00356 are biased. 00357

00358 9. Suction brush device (1) according to one or more of the

00359 preceding claims or in particular according thereto,

00360 characterized in that an interaction between

00361 the backdrop (29) and the sliding block (30) in one

00362 deactivation position of the bristles (13) vertical forces

00363 is free.