EP0611545A1 - Buse pour aspirateur - Google Patents

Buse pour aspirateur Download PDF

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Publication number
EP0611545A1
EP0611545A1 EP94101999A EP94101999A EP0611545A1 EP 0611545 A1 EP0611545 A1 EP 0611545A1 EP 94101999 A EP94101999 A EP 94101999A EP 94101999 A EP94101999 A EP 94101999A EP 0611545 A1 EP0611545 A1 EP 0611545A1
Authority
EP
European Patent Office
Prior art keywords
channel
suction
flow
flow channel
vacuum cleaner
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP94101999A
Other languages
German (de)
English (en)
Inventor
Dietmar Glatz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wessel Werk GmbH
Wessel Werk GmbH and Co KG
Original Assignee
Wessel Werk GmbH
Wessel Werk GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wessel Werk GmbH, Wessel Werk GmbH and Co KG filed Critical Wessel Werk GmbH
Publication of EP0611545A1 publication Critical patent/EP0611545A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
    • A47L9/0606—Nozzles with fixed, e.g. adjustably fixed brushes or the like rigidly anchored brushes, combs, lips or pads
    • A47L9/0613—Nozzles with fixed, e.g. adjustably fixed brushes or the like rigidly anchored brushes, combs, lips or pads with means specially adapted for picking up threads, hair or the like, e.g. brushes, combs, lint pickers or bristles pads
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
    • A47L9/0606—Nozzles with fixed, e.g. adjustably fixed brushes or the like rigidly anchored brushes, combs, lips or pads
    • A47L9/0626—Rigidly anchored lips, e.g. nozzles adapted for picking up liquids

Definitions

  • the present invention relates to a vacuum cleaner nozzle according to the preamble of claim 1.
  • Vacuum cleaner nozzles of the type in question have, in the area of the base plate or a so-called slide plate functioning as a base plate, a flow channel opening into a suction channel for targeted guidance of the suction flow applied by the suction power of a vacuum cleaner motor.
  • the flow channel is open at the bottom, that is to say when the vacuum cleaner nozzle is used toward the floor to be vacuumed.
  • several such flow channels are provided, which extend symmetrically to the central suction pipe to the two axial ends of the nozzle.
  • the flow channel or the flow channels are formed with a substantially constant cross section over the entire length, with a more or less local widening of the cross section taking place only in the mouth area to the suction channel in order to ensure a smooth transition to the suction channel without to ensure significant flow resistance.
  • a disadvantage of this design of the flow channels is above all that the suction acting over the entire axial length of the flow channels, that is to say the negative pressure applied by the vacuum cleaner, is distributed unevenly.
  • the suction effect in the flow channels decreases from the inside, that is to say from the area of the suction channel, to the outside towards the axial ends of the flow channels, so that there is no uniform suction and thus cleaning performance of the Vacuum cleaner nozzle over its entire width or, based on the longitudinal axis of the flow channels, over its entire length is guaranteed.
  • the invention is based, first of all, on the knowledge that the flow velocity of the suction air and, associated therewith, the specific suction power increases with a decreasing cross section of the flow channels. In this ideal form, however, this only applies to a flow channel which is closed on all sides, that is to say only axially open. In the case of a flow channel design, such as in the case of vacuum cleaner nozzles of the type in question here, with a cross section open towards the bottom to be sucked, however, the flow speed in the flow channel and, associated therewith, the suction power are also determined by the sucked-in air which penetrates over the longitudinal edges of the flow channels.
  • Double parabolic in the sense of the present invention means that both the cross section through the flow channel has a parabolic profile open at the bottom, the walls of the flow channel forming the two parabolic branches, and also the longitudinal section through the flow channel, based on the longitudinal axis of the Flow channel.
  • the cross-sectional area of the flow channel decreases from the suction channel in the direction of the end pointing away from the suction channel.
  • the cross-section itself always widens from the bottom of the flow channel towards the floor to be sucked.
  • the flow channel is not only parabolic in the longitudinal section directed essentially perpendicular to the base plate, but also parabolic in a longitudinal section which lies essentially in the plane of the base plate or parallel to this plane.
  • the cross-section or the cross-sectional width increases from the end of the flow channel pointing away from the suction channel in the direction of the suction channel in an analogous manner to the previously described design.
  • the cutting width in the plane of the base plate or the plane parallel to it is determined analogously to the cross section of both parabolic branches.
  • a particularly uniform distribution of the suction power over the entire axial length of the flow channel is achieved according to a preferred embodiment of the invention in that the suction channel is arranged in a manner known per se centrally in the axial central region of the vacuum cleaner nozzle, with at least two flow channels opening into the suction channel run symmetrically to the suction channel.
  • the flow channels are preferably aligned essentially parallel to the front and / or rear edge of the nozzle body.
  • a further influence and thus control of the flow conditions in the flow channels and thus the suction power of the vacuum cleaner nozzle can be achieved according to a further embodiment of the invention in that the flow channels are not closed axially outwards, based on the longitudinal axis of the flow channels, but are at least partially open.
  • the size of this opening makes it possible to further influence the amount of secondary air flowing in and thus the suction power of the nozzle, at least in the axially outer ends of the flow channels.
  • the front and rear edges of the flow channels are designed, at least in regions, as suction or flow edges, in relation to a direction transverse to the longitudinal axis of the flow channels.
  • these flow edges can be formed by beads which protrude above the level of the base plate.
  • the flow edges are preferably formed in that the surface area of the bottom in front of the front flow channel edge and / or the surface area behind the rear flow channel edge is at least slightly inclined upwards away from the edges relative to the horizontal plane formed by the base plate, as a result of which the flow channel edge forms a bulge at least weakly wedge-shaped profile.
  • the flow channel or the flow channels is at least partially spaced with sealing or sealing elements surround.
  • the sealing or closing elements can be in a manner known per se consist of a bristle ring and / or a sealing lip, in particular a sealing lip made of an elastomer material.
  • the vacuum cleaner nozzle consists of a nozzle body 1 which has on its lower side an integrally molded base plate 2 which acts as a sliding plate. Open flow channels 3, 4 are formed in the bottom plate 2 downwards, that is to say toward the floor to be sucked, which open into a common suction channel 5 in the axially central region of the nozzle.
  • the suction channel 5 can be connected in a flow-permeable manner to the suction pipe (not shown) of a vacuum cleaner via a suction pipe connection piece 6, here in the form of a joint piece.
  • the flow channels 3, 4 are designed to be open at their axially outer ends 7, ie ends 7 pointing away from the suction channel 5.
  • the longitudinal axis of the flow channels 3 and 4 runs essentially parallel both to the front edge 8 and to the rear edge 9 of the nozzle body 1 or the base plate 2.
  • FIGS. 2 to 4 The profile of the flow channel 4, which is the same as the profile of the flow channel 3, is shown in FIGS. 2 to 4, the sectional planes corresponding to the planes spanning a rectangular coordinate system. 2 shows a cross section through the flow channel 4 along the line A-A. This cross section has a parabolic profile with the two parabolic branches 11 and 12 and the apex 13. The parabola opens downwards, i.e. towards the floor to be sucked.
  • FIG. 3 shows a longitudinal section through the flow channel 4 along the line B-B, which essentially corresponds to the apex line 13 according to FIG. 2.
  • the cross-sectional height which essentially corresponds to the depth of the flow channel 4 narrows axially from the inside, that is to say from the suction channel 5, not shown, to the axially outer end 7, the course of the apex line 13 and so that the bottom of the flow channel 4 is parabolic.
  • the section according to FIG. 3 is only limited on one side by a single parabolic load 13, since the flow channel 4 is open towards the bottom.
  • the section plane essentially corresponds to the plane of the base plate 2 or a parallel horizontal plane.
  • the two wall areas 11 and 12 are cut in accordance with the parabolic branches of the illustration in FIG. 2.
  • the two wall regions 11 and 12, which each represent a branch of a parabola form a cross-sectional profile that tapers parabolically from the suction channel (not shown) to the axially outer end 7 of the flow channel 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
EP94101999A 1993-02-16 1994-02-09 Buse pour aspirateur Withdrawn EP0611545A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4304682A DE4304682C2 (de) 1993-02-16 1993-02-16 Staubsaugerdüse
DE4304682 1993-02-16

Publications (1)

Publication Number Publication Date
EP0611545A1 true EP0611545A1 (fr) 1994-08-24

Family

ID=6480607

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94101999A Withdrawn EP0611545A1 (fr) 1993-02-16 1994-02-09 Buse pour aspirateur

Country Status (4)

Country Link
US (1) US5497532A (fr)
EP (1) EP0611545A1 (fr)
JP (1) JPH06339443A (fr)
DE (1) DE4304682C2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007135034A1 (fr) * 2006-05-24 2007-11-29 BSH Bosch und Siemens Hausgeräte GmbH Buse multicanaux pour appareils de nettoyage des sols
EP3257417A2 (fr) 2016-06-14 2017-12-20 Wessel-Werk GmbH Buse d'aspirateur
CN108937715A (zh) * 2017-05-18 2018-12-07 戴森技术有限公司 抽吸嘴

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5991973A (en) * 1997-08-15 1999-11-30 Simpson; Timothy A. Air yard blower
US6032328A (en) * 1998-02-10 2000-03-07 Rexair, Inc. Crevice cleaning tool for a vacuum cleaner apparatus
TW578540U (en) 1998-07-28 2004-03-01 Sharp Kk Electric vacuum cleaner and nozzle unit therefor
US6105207A (en) * 1999-03-16 2000-08-22 Muller; Albert F. Vacuum cleaner nozzle
GB0008370D0 (en) 2000-04-06 2000-05-24 Reckitt & Colmann Prod Ltd Improvements in or relating to electric appliances
GB0023732D0 (en) * 2000-09-28 2000-11-08 Notetry Ltd A floor tool
GB2466290B (en) * 2008-12-19 2012-10-03 Dyson Technology Ltd Floor tool for a cleaning appliance
USD667186S1 (en) * 2011-02-02 2012-09-11 Dyson Limited Part of a vacuum cleaner
AU2014240192B2 (en) * 2013-11-14 2018-08-23 Electrical Home-Aids Pty Ltd A vacuum cleaner head
EP2997871A3 (fr) * 2014-09-01 2016-06-22 Indesit Company S.p.A. Accessoire de nettoyage pour aspirateurs et aspirateur équipé de cet accessoire
CN114073444A (zh) * 2020-08-21 2022-02-22 天佑电器（苏州）有限公司 吸尘器的地刷及吸尘器
EP4340689A1 (fr) 2021-05-19 2024-03-27 Alfred Kärcher SE & Co. KG Appareil de buse pour sol et dispositif de nettoyage par aspiration

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL99792C (fr) *
FR1422936A (fr) * 1964-11-03 1966-01-03 Olivier Ets Georges Perfectionnements aux suceurs d'aspirateurs
GB2090519A (en) * 1981-01-07 1982-07-14 Vorwerk Co Interholding Suction cleaner nozzles
EP0248695A1 (fr) * 1986-05-30 1987-12-09 ETABLISSEMENTS GEORGES OLIVIER Société Anonyme dite: Suceur d'aspirateur avec arrache-fils
DE8905855U1 (de) * 1989-05-10 1989-07-13 Siemens AG, 1000 Berlin und 8000 München Staubsauger-Mundstück mit einem Fadenheber

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB597752A (en) * 1945-08-24 1948-02-03 Eric Aron Improvements in or relating to suction nozzle attachments for vacuum cleaners
US1039383A (en) * 1911-05-10 1912-09-24 United Electric Company Suction-nozzle.
US1110439A (en) * 1912-02-09 1914-09-15 United Electric Company Suction cleaning-nozzle.
FR706716A (fr) * 1930-11-29 1931-06-29 Ventouse pour aspirateurs de poussière et appareils similaires
GB428619A (en) * 1933-11-16 1935-05-16 Richard Edward Watts Improvements in driving mechanism for engines, compressors, pumps and other machines
AT150862B (de) * 1935-07-26 1937-10-11 Mauz & Pfeiffer Staubsaugerdüse.
GB461452A (en) * 1935-11-29 1937-02-17 British Vacuum Cleaner & Engin Improvements in or relating to nozzles for suction cleaning machines
US2182344A (en) * 1936-12-23 1939-12-05 Electrolux Corp Suction nozzle
US2555979A (en) * 1944-12-30 1951-06-05 Electrolux Corp Suction nozzle with valve for concentrating air flow at the end thereof
DE1650589A1 (de) * 1967-12-08 1970-09-24 Voigt Kg Helmut Spuelwasserregeleinrichtung,insbesondere fuer die Anwendung in Klosettspuelkaesten

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL99792C (fr) *
FR1422936A (fr) * 1964-11-03 1966-01-03 Olivier Ets Georges Perfectionnements aux suceurs d'aspirateurs
GB2090519A (en) * 1981-01-07 1982-07-14 Vorwerk Co Interholding Suction cleaner nozzles
EP0248695A1 (fr) * 1986-05-30 1987-12-09 ETABLISSEMENTS GEORGES OLIVIER Société Anonyme dite: Suceur d'aspirateur avec arrache-fils
DE8905855U1 (de) * 1989-05-10 1989-07-13 Siemens AG, 1000 Berlin und 8000 München Staubsauger-Mundstück mit einem Fadenheber

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007135034A1 (fr) * 2006-05-24 2007-11-29 BSH Bosch und Siemens Hausgeräte GmbH Buse multicanaux pour appareils de nettoyage des sols
EP3257417A2 (fr) 2016-06-14 2017-12-20 Wessel-Werk GmbH Buse d'aspirateur
EP3257417A3 (fr) * 2016-06-14 2017-12-27 Wessel-Werk GmbH Buse d'aspirateur
CN108937715A (zh) * 2017-05-18 2018-12-07 戴森技术有限公司 抽吸嘴
CN108937715B (zh) * 2017-05-18 2021-07-27 戴森技术有限公司 抽吸嘴

Also Published As

Publication number Publication date
US5497532A (en) 1996-03-12
DE4304682C2 (de) 1996-01-25
DE4304682A1 (de) 1994-08-25
JPH06339443A (ja) 1994-12-13

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