Classifications

• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
  • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
  • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
  • A47L9/12—Dry filters
  • A47L9/122—Dry filters flat
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
  • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
  • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
  • A47L9/12—Dry filters

Definitions

• the invention relates to a vacuum cleaner with a
• 00004 a vacuum cleaner housing arranged suction fan and
• Particle filters can be present as individual elements. It
• 00034 is that the longitudinal edge has a slightly concave ver
• 00043 filter must therefore lie sealingly in the receptacle.
• 00048 configuration is also with an arrangement of the suction opening
• 00075 cuts the concave longitudinal edge of the receptacle.
• 00096 is arranged offset, in a convex rounded
• the invention further relates to an odor and / or
• 00140 concave design can be on one long side 00141 of the filter can be provided. Furthermore, a narrow
• the filter has both an odor and a particle
• This convexly curved corner area is preferably between
• 00184 corresponds. It may be a floor plan
• the filter can also be designed in this way
• 00194 has an odor filter layer. Odorants
• 00220 filter layer made of a foam frame with embedded
• 00227 particle filtering has a particle filter layer.
• the particle filter layer consists of a fleece.
• the particle filter layer can also be made of
• 00231 consist of a glass paper filter fabric.
• downstream assemblies such as blowers
• 00267 filter layers consists in that the particle filter
• 00279 may reduce a tool life
• 00317 is proposed in an alternative embodiment, 00318 that the decisive filter stages (pore protection filter, 00319 odor filter and possibly retention filter) are welded into the filter 00320.
• the enveloping filter foam supports the function of the pore protection filter on the upstream side and the function of the retention filter for adsorptive material 00324 on the downstream side or even fulfills it on its own.
• the handling plate 00326 is arranged in the area of the weld seam.
• the 00327 handling tab is formed from the two layers 00329 welded to one another, with which the handling tab forms an enlargement 00330 of the collar already formed by the weld seam in a corner region of the filter.
• the removal aid is arranged on the side of the filter, so that it does not reduce the free flow area. At the same time, it is very flexible, so that it cannot lead to wedging of the vacuum cleaner parts located next to the filter.
• Another advantage of 00337 is that equipping the filter with a handle of this type 00338 is almost cost-neutral 00339.
• 00340 00341 The invention is explained below with reference to the drawings, 00342, which only shows exemplary embodiments.
• FIG. 1 shows a hand-held vacuum cleaner in a perspective view with a position of a filter and a 00348 suction fan shown in hidden line style 00347; 00349 00350 Fig. 2 is a plan view of the filter after insertion
• Figure 3 shows the section along the line III-III in Fig. 2.
• FIG. 4 is a plan view of the filter in a single
• FIG. 5 shows a side view of the filter according to FIG. 4;
• 00360 Fig. 6 is an enlarged sectional view through the
• FIG. 7 shows an enlarged detail from FIG. 3;
• FIG. 8 shows a sectional representation corresponding to FIG. 6
• FIG. 9 shows a further representation corresponding to FIG. 6
• FIG. 10 shows another sectional view corresponding to FIG.
• FIG. 11 shows another sectional view corresponding to FIG.
• Fig. 1 a handheld vacuum cleaner 1 with one in a dust
• suction housing 2 arranged suction fan 3 and one in
• 00384 Filter 4 which is designed as an odor and particle filter 00385 forms.
• this 00386 filter 4 is a dust filter bag, not shown, which is held in a filter bag cassette 5 and is not shown.
• 00389 00390 An essentially rectangular receptacle 6 for the filter 4 is formed in the suction fan 3. In this 00392 receptacle 6 the filter 4 is in the operating state.
• the receptacle 6 is exposed 00394 bar by the dust bag cassette 5 being pivoted away from the suction housing 00395 se 2.
• the receptacle 6 is essentially bowl-shaped with a base 7 and a circumferential wall 8 oriented perpendicularly to this 00401.
• webs 9 are formed to support the 00403 filter 4 to be inserted, as a result of which a spacing between the bottom 00404 of the filter 4 and the bottom 7 is given.
• a suction opening 10 is provided in the bottom 7 for connection to the suction blower 3, which suction opening 1040 is of circular design in plan view.
• the suction opening 10 00410 has a diameter of approximately 18 mm.
• 00411 00412 The arrangement of the suction opening 10 in the floor 7 00413 is selected such that the center point M is spaced from 00414 a center of area FS of the receptacle 6, namely 00415 such that the suction opening 10 is offset approximately from a corner formation 00416 A of the receiving floor plan.
• 00417 In the embodiment shown, this is so selected 00418 that the center M is approximately in the middle of a 00419 imaginary connecting line between the heavy area
• the longitudinal edge B has a slightly concave
• 00442 is approximately at the level of the suction opening center M.
• the 00463 contour of the receiving wall 8 is closed by 00464 a uniformly rounded corner area F, a straight narrow edge 00465 adjoining it 00466 edge G and a edge connecting this edge and the concave 00467 de longitudinal edge B, obliquely over a 00468 angle of approx. 15 ° edge H. 00469 00470
• the various dimensions, in particular the radii of the 00471 concave edge edges are described with the help of the filter layout 00472, which filter 4 is geometrically 00473 in the layout of the edge edges or the wall 8, 00474 det, however with a slight oversize of 00475 all around 1 to 2mm.
• the filter 4 is designed as an odor and 00478 particle filter.
• 4-6 show a 00479 first embodiment of the filter 4.
• 00480 00481 As can be seen in particular from the sectional illustration in FIG. 6 00482, a layered arrangement of various filter layers 00483 is provided.
• an odor filter layer 11 is provided, which is arranged in the flow direction r between two particle filter layers 12 and 12 '.
• the odor filter layer 11 preferably consists of a foam material 00488 equipped with activated carbon.
• active crushed coal is preferably used here.
• the particle filter layer 12 which forms a pore protection filter, is made of a 00494 nonwoven fabric.
• a glass filter paper fabric can also be used.
• 00496 00497 A three-layer filter 4 is thus created, 00498 which consists of a skin-like foam 13, preferably 00499, polyurethane foam based on esters with approx. 60 to 00500 100 pores per inch, typically 80 pores per inch, for 00501 to form a shell is surrounded.
• the thickness of this skin-like 00502 foam 13 is 1 to 2 mm, preferably 00503 1.5 mm.
• This skin-like foam 13 consists of 00504 two layers 13 ', 13''which are welded to one another and which are 00505 welded to one another along the entire circumference on the narrow sides, 00507 being welded by the weld seam 14 00507 from the air-permeable material to an air-impermeable material is formed.
• the weld seam 14 therefore has the function of a sealing lip 16 00509.
• the filter 4 faces the upper, ie exposed top side of the filter 4 according to FIG. 3.
• 00516 00517 The upstream particle filter layer 12 00518 protects the odor filter layer 11 or another alternatively used adsorbent 00519 from fine dust.
• This 00520 fine dust if it were not caught in the upstream 00521 particle filter layer 12, could, depending on the size of the 00522, the macropores, the mesopores or the micropores Block 00523 of the adsorbent and reduce the adsorption capacity 00524 of the odor filter.
• the downstream 00525 particle filter layer 12 'in turn protects the downstream components of the vacuum cleaner 1, such as 00527, the suction fan 3, the motor, etc., not only from 00528 parts of the fine dust that still passes through the dust filter bag, but also from any coal 00530 dust that can be released by vibration and wear within the 00531 odor filter.
• the filter 4 has an essentially rectangular 00542 layout with a length x of approx. 150 mm, a 00543 width y of approx. 75 mm and a thickness z of approx. 20 mm.
• the 00546 outline contour of the filter 4 is correspondingly modified from a 00547 rectangular shape.
• 00548 00549 The filter 4 is designed to be cushion-like compressible 00550 and has a concave configuration on a longitudinal side B '00551 de design.
• the radius e of the circular 00552 section-shaped line thus formed is approximately 300 mm.
• FIG. 4 shows a rectangle representing the basic outline 00557 to explain the contour in 00556 dash-dotted line type.
• the concave 00558 design of the long side B 1 is chosen so that the 00559 this circular section line intersects the long side of the 00560 auxiliary rectangle so that there is a distance i 00561 between the intersection points of about 90mm. This results in a depression g of the long side B 'caused by the concave configuration 00563 of approximately 00564 3 mm from the original long side of the rectangle.
• the arrangement of the concave long side B ' has also been such that it is not assigned to a convex 00568 curved corner area A' rather than in the center of the entire length 00567 of the filter 4.
• 00584 start and end point of this narrow side C refer to 00585 to the longitudinal extent of the filter 4, not to 00586 on one plane, but are offset by a dimension h of approx. 5 mm 00587 such that the corner area A 1 End point 00588 facing away from the inside, ie in the direction of 00589 a center of the area of the filter 4 is offset.
• 00590 00591 The configurations and dimensions 00592 of the long side B 1 and the narrow side C described above result in 00593 a protruding, nose-like design of the corner area
• 00597 are characterized by the concave or by the convex configuration.
• 00627 triangle is approximately formed.
• This handling position 00628 see 15 is arranged in height in the area of the weld seam 14 00629 and is formed by the two miteinan 00630 of the welded layers 13 'and 13' * of the skin-like 00631 foam 13.
• the cathets of the 00632 handling tab 15 result from an extension of the 00633 Welding seams on the long side E 'and the narrow side C.
• the hypotenuse which forms a kink line for the handling strap 15, is described by the corner region D '00636.
• 00637 00638 The cantilevered handling tab 15 corresponds in 00639 its length m approximately to the height z of the entire filter 4.
• the filter 4 due to 00650, clings to the above-mentioned oversize in a sealing manner on the edge edges 00651 of the receptacle 6, this seal being supported by the sealing lip 16 00653 formed from the weld seam 14, as mentioned above.
• the handling flap 15 is bent upwards according to 00654, ie in the direction of the removal opening 00655, for secure gripping thereof.
• Hier ⁇ 00656 due to an easy removal of the filter 4 00657 from the receptacle 6 is guaranteed.
• FIGS. 8-11 show alternative configurations of the 00682 multilayer structure of the filter 4. 00683 00684 In FIG.
• a particle filter layer 12 is arranged between 00685 two odor filter layers 11.
• 00686 00687 In FIG. 9, in the direction of flow r the odor filter layer 00688 only one particle layer 12 serving as a pore protection filter is upstream.
• Filters 4 such as those shown in 00690 FIGS. 8 and 9 can be used, for example, in vacuum cleaners which have an additional particle filter layer connected downstream in 00692 flow direction r for the absorption of, for example, coal dust escaping from 00694 the odor filter layer point.
• FIG. 10 shows an alternative embodiment in which only a 00699 odor filter layer 11 is upstream of a particle filter layer 12 '.
• This configuration of the filter 4 is used, for example, in the case of vacuum cleaners 00701 which have an additional particle filter 00703 layer connected upstream of the filter 4 in the flow direction 00702 r, for the absorption of fine dust which is still emerging from the 00704 dust filter bag and which 00705 Odor filter could clog.
• 00706 00707 In the two alternative embodiments according to 00708, FIGS. 9 and 10, the described layout of the filter 4 proves to be further advantageous as 00710 in that, due to the fact that the filters 4 are used in the correct position in terms of flow must have the concave 00712 ven and convex areas a briefing function.
• FIG. 11 shows a further alternative 00719 embodiment in which the foam layer 13 '00720 on the inflow side fulfills the function of a pore protection filter 12 00721 and on the outflow side the foam layer 13''fulfills the function 00722 of a retention filter 12' for adsorptive material 00723 alone. This can be achieved by corresponding 00724 typing of the envelope-like foam 00725 bar. 00726 00727 All disclosed features are essential to the invention. In 00728 the disclosure of the application, the 00729 disclosure content of the associated / attached priority documents 00731 (copy of the prior application) is hereby fully included, also for the purpose of features of these 00732 documents in claims of the present application with

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Filters For Electric Vacuum Cleaners (AREA)
• Filtering Of Dispersed Particles In Gases (AREA)

Applications Claiming Priority (5)

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• 1997
  • 1997-03-01 WO PCT/EP1997/001031 patent/WO1997036534A1/fr active IP Right Grant
  • 1997-03-01 AT AT97906810T patent/ATE217774T1/de not_active IP Right Cessation
  • 1997-03-01 ES ES97906810T patent/ES2174222T3/es not_active Expired - Lifetime
  • 1997-03-01 EP EP97906810A patent/EP0893963B1/fr not_active Expired - Lifetime

Non-Patent Citations (1)

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