EP0245224B1 - Aspirateur - Google Patents

Aspirateur Download PDF

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Publication number
EP0245224B1
EP0245224B1 EP87850118A EP87850118A EP0245224B1 EP 0245224 B1 EP0245224 B1 EP 0245224B1 EP 87850118 A EP87850118 A EP 87850118A EP 87850118 A EP87850118 A EP 87850118A EP 0245224 B1 EP0245224 B1 EP 0245224B1
Authority
EP
European Patent Office
Prior art keywords
filter
suction
container
suction device
pollutants
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.)
Expired - Lifetime
Application number
EP87850118A
Other languages
German (de)
English (en)
Other versions
EP0245224A1 (fr
Inventor
Birger Svensson
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.)
Pullman Scandinavian AB
Original Assignee
Pullman Scandinavian AB
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 Pullman Scandinavian AB filed Critical Pullman Scandinavian AB
Priority to AT87850118T priority Critical patent/ATE58631T1/de
Publication of EP0245224A1 publication Critical patent/EP0245224A1/fr
Application granted granted Critical
Publication of EP0245224B1 publication Critical patent/EP0245224B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
    • A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
    • A47L9/1658—Construction of outlets
    • A47L9/1666—Construction of outlets with filtering means
    • 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
    • A47L9/20—Means for cleaning filters

Definitions

  • the present invention relates to a suction apparatus of a kind known as an industrial vacuum cleaner for sucking up pollutants such as dust, powder etc, particularly of very fine nature, the apparatus including a suction device, such as an induced draft fan or suction fan, a rough separation container connected to the suction side of the suction device, a fine separation filter being arranged in the connection between said container and the suction device, a suction inlet to the rough separation container for connecting a suction hose or the like, an outlet from the suction device for cleaned air or the like, which has been sucked into the apparatus together with pollutants such as dust etc, which are to be separated, and means for discharging the collected, separated pollutants from said container, preferably to a collection bag or the like.
  • a suction device such as an induced draft fan or suction fan
  • a rough separation container connected to the suction side of the suction device
  • a fine separation filter being arranged in the connection between said container and the suction device
  • a suction inlet to the rough separation container for
  • the filter of a vacuum cleaner should be cleaned by means of scraper means acting on the polluted surface of the filter.
  • the filter can be stationary, while the scraper means are rotated around the filter, or alternatively the scraper means can be stationary, while the filter can be rotated about its axis. In view of the nature of commonly used filters and the pollutants, these solutions have not proved to be efficient.
  • the object of the present invention is to provide a suction apparatus of the kind mentioned in the introduction, which is not burdened with the disadvantages accounted for above and which enables very rapid and effective cleaning of the fine separation filter included in it.
  • the inventive suction apparatus is thus essentially distinguished in that the fine separation filter is adapted for being given rotation such that the pollutants deposited on the filter then are thrown from it due to the effect of centrifugal force, enabling them to be collected in the rough separation container, and in that means are provided for closing the suction inlet when the fine separation filter is rotated to prevent outward leakage of pollutants.
  • the filter shall be rotated, it is preferably at least substantially rotationally symmetric, e.g. substantially tubular or sleeve-like, and adapted for rotation about its longitudinal or symmetrical axis.
  • the filter is suitably mounted on a co-axial drive shaft which is driven by a motor, e.g. an electric motor, arranged on the outlet side of the filter, i.e. in a protected position outside the rough separation container proper.
  • the filter can suitably hang vertically down in said container.
  • the filter is rotatably mounted utilizing dust-tight bearings.
  • This type of bearigs is preferably arranged at one end of the filter only, while the other end of the filter is arranged such as to be free from leakage, e.g. by sealed mounting against an end plate or the like.
  • this plate can be mounted on its "inside", i.e. inside the filter, if so desired.
  • the dust-tight bearing is arranged to advantage against a support wall or the like, this wall being the partition wall or boundary between the container and the suction device.
  • the filter and a support wall or the like connecting to one end of the filter are arranged mutually displaceable.
  • the suction device When the suction device is in operation, i.e. when the suction apparatus is used, the mentioned end of the filter is in sealed, fixed contact with the support wall or the like.
  • the suction device When the suction device is inoperative, i.e., when the filter is to be cleaned by being rotated, the filter is relatively displaced, so that the mentioned end can rotate freely in relation to the support wall or the like.
  • the other end of the filter may be fixed or in sealed association to the drive shaft of the drive motor in this case as well. It will be understood that the required relative displacement could be obtained by the drive motor, its drive shaft and the filter connected thereto being axially displaceable as a unit.
  • the suction apparatus therefore includes means for closing the container-collection bag system, as mentioned above. These means can naturally include shut-off means or other valve means situated in connection with the suctoin inlet and/or suction hose.
  • the apparatus is instead provided with a special, normally closed inlet to the container or collection bag, to which the suction end of the connected suction hose can be readily connected and which can easily be opened in conjunction with the cleaning rotation of the filter.
  • a closed system for the suction side of the filter having an excess pressure in conjunction with rotation of the filter.
  • the excess pressure obtained in the closed system can be utilized to open a shut-off means placed in the junction between the container and collection bag, in as far as such opening does not take place automatically as a result of the weight of the separated pollutants collected in the container.
  • the rough separation container and its suction inlet can form a cyclone separator with the filter co-axially arranged at its upper central portion.
  • the suction inlet is preferably arranged upwardly in the rough separation container.
  • a guide plate can be arranged between the outer wall of the container and the centrally arranged filter, this plate urging the cyclone flow downwards outside the guide plate before the flow liberated from rough pollutants by the cyclone separating action can turn upwards inside the guide plate for passage through the centrally arranged filter.
  • the lower edge of the guide plate is suitably at approximately the same level as the lower edge of the filter.
  • the lower plate edge area can be bent or angled outwards towards the wall of the container.
  • the guide plate suitably has a tubular configuration.
  • the suction apparatus of the invention is intended to handle, it has been found essential that a fine final filter is included in the apparatus, this filter being downstream of the filter arranged in the rough separation container.
  • the final filter is suitably of disposable type and should be easy to replace.
  • the final filter is mounted in an annular space which at least to an essential extent surrounds the rough separation container and which is easily accessible from above by removing a top portion of the apparatus, this portion suitably containing a suction fan device with its suction side in communication with the final filter space.
  • the final filter is implemented to advantage as a filter bag adapted to the mentioned space, the inlet of this bag being mounted on an outlet from the central filter configuration.
  • the final filter is mounted inside the central filter in the rough separation container, co-axial with the latter filter and suitably removable on an axially arranged mounting tube or the like for the central filter, this tube being provided with openings for the air sucked out after having passed through the filter.
  • This second embodiment means that the diameter of the rough separation container itself can be made larger in otherwise unchanged conditions, whereby the cyclone separating action will be better as a result of the greater distance between the container wall and the central filter.
  • the arrangement of a guide plate of the kind mentioned above is also facilitated.
  • the suction apparatus in accordance with the invention has a generally cylindrical, upstanding configuration and is arranged on a not more closely illustrated suitable frame or the like, e.g. a transport trolly.
  • the main components of the apparatus are a cylindrical cyclone separator container 1, which downwardly merges into a substantially funnel-like bottom part 3, with a bottom discharge opening 5 and associated downwardly openable closing flap 7, and is open upwardly for receiving a removable filter unit;
  • the suspension and mounting of the filter 31 will now be described in more detail. It is fastened between an upper mounting plate 65 und a lower mounting plate 67.
  • the plate 67 extends parallel to and somewhat spaced from the horizontal bottom wall 69 of the housing 11.
  • the plate 65 is journaled for rotation on the uppermost part of the tube 21, i.e. at the connection thereof to a corresponding opening 71 in the bottom wall 69, with the aid of a sealed ball bearing 73.
  • the lower horizontal plate 67 is centrally attached to the free end of the drive shaft 29, while being journaled for rotation against the lower inner end portion of the tube 21 with the aid of a ball bearing 75, mounted inwards of the plate 67 on the drive shaft 29.
  • the protective skirt 61 extends past the narrow gap between the bottom wall 69 of the housing 11 and the upper plate 65 to an extent such that dust etc is substantially prevented from entering into the gap.
  • FIG. 1 The normal operation of the suction apparatus is illustrated in Figure 1.
  • the suction device is functioning and the suction hose 45 is connected to a suction cowl, a tool adapted for sucking dust away, or the like. Air and dust are thus sucked into and through the apparatus according to what is indicated by the different flow arrows in Figure 1.
  • the mixture of air and dust is thus sucked in through the inlet and is given cyclonic rotation inside the container 1, larger dust particles and other large material being separated to fall down along the inner wall of the container, for collection at 77 in the bottom part 3.
  • the flap 7 is closed, if not by spring bias or the like, so in any case as a result of the vacuum obtained by the suction action in the container 1.
  • the air still entraining finer dust is sucked through the filter 31, which can be of optional suitable kind, whereby the dust is deposited on the outside of the filter.
  • the air is sucked further through the tube 29, space 15, side outlet 17, filter bag 39 to finally pass through the suction device 41.
  • the filter 31 can typically trap particles down to a size of about 0.5 pm
  • the filter bag 39 can typically trap particles down to a size of approximately 0.2 pm.
  • the flap 7 is not opened directly on closing off the suction device, as a result of the loading caused by the separated material 77, the flap 7 will be open due to the excess pressure created in the container 1, this pressure also prevailing inside the bag 49. The latter is thus inflated and can receive in an advantageous manner the separated material which is thus collected in it (indicated at 79).
  • the final filter bag 39 and its associated space 35 in Figures 1 and 2 no longer exists in the alternative embodiment. Instead, the diameter of the cyclone separating container is increased so that the outer wall of the container 1 also constitutes the outer casing wall.
  • a guide plate 81 Approximately at the place for the container wall according to Figures 1 and 2 there is now arranged a guide plate 81.
  • the plate has the form of a tube projecting down into the container from the mounting flange or plate 13, to which the plate 81 is sealed all the way round.
  • the bottom edge of this plate 81 is somewhat higher than the upper edge of the bottom part 3, so that there is an annular gap 83 through which the air circulating down through the space 85, between the outer wall of the container and the plate 81, can pass inwardly and upwardly again for passage through the filter 31.
  • the final filter 89 comprises a filter sleeve which is removably mounted on the filter mounting tube 21.
  • the inner diameter of the filter sleeve corresponds to the outer diameter of the tube 21. Upwardly the sleeve engages against fixed abutments 91 and downwardly against abutments 93, which are removable in some suitable, unillustrated manner. It will be understood that the filter sleeve 89 can easily be replaced as required, after the filter 31 and its mounting plate 67 have been removed.
  • a suction apparatus in accordance with the invention gives extremely good suction and filtering effects while simultaneously enabling very rapid and effective, repeated cleaning of the included fine separation filter, which has very great separation ability. This means that the suction apparatus can be utilized in an extremely reliable and effective way, with minor downtime for cleaning and seldom occurring filter replacements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Refuse Collection And Transfer (AREA)
  • Cyclones (AREA)
  • Centrifugal Separators (AREA)
  • Massaging Devices (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Claims (9)

1. Appareil d'aspiration du type connu sous le nom d'aspirateur industriel, destiné à aspirer des matières polluantes telles que de la poudre de poussière, etc., notamment de nature très fine, comprenant un élément d'aspiration (41) tel qu'un ventilateur à aspiration induite on un ventilateur aspirant, un récipient (1) de séparation grossière, raccordé au côté d'aspiration de l'élément d'aspiration, un filtre (31) de séparation fine placé dans le raccord entre le récipient et l'élément d'aspiration, une entrée d'aspiration (43) dans le récipient de séparation grossière destinée à raccorder une tuyauterie souple d'aspiration (45) ou analogue, une sortie de l'élément d'aspiration destinée à transmettre de l'air épuré ou analogue, qui a été aspiré dans l'appareil avec les polluants tels que la poussière, etc. qui doivent être séparés, un dispositif (3, 5, 7) d'évacuation des polluants collectés et séparés du récipient, de préférence dans un sac collecteur (49) ou analogue, et un dispositif (25, 27, 29) destiné à assurer la rotation du filtre (31) de séparation fine au moins lorsque l'élément d'aspiration est inactif, caractérisé en ce que le filtre (31) de séparation fine est destiné à subir une rotation afin que les polluants déposés sur le filtre soient chassés de celui-ci sous l'action de la force centrifuge et soient collectés dans le réceipient (1 et en ce que un dispositif (45, 55, 57) est destiné à fermer l'entrée d'aspiration (43) lorsque le filtre (31) est entraîné en rotation, si bien que l'excès de pression dans le récipient (1), dû à la rotation du filtre, ne provoque pas des fuites des polluants vers l'extérieur par l'intermédiaire de l'entrée d'aspiration.
2. Appareil d'aspiration selon la revendication 1, caractérisé en ce que le dispositif de fermeture comporte un dispositif (55, 57) de raccordement d'une extrémité d'aspiration de la tuyauterie d'aspiration (45) ou analogue à l'intérieur du récipient (1) ou à un sac collecteur (49) ou analogue qui lui est raccordé.
3. Appareil d'aspiration selon l'une quelconque des revendications précédentes, caractérisé en ce que le filtre (31) est au moins sensiblement tubulaire et est monté sur l'arbre menant (27, 29) d'un moteur (25) d'entraînement, le moteur étant placé du côté de sortie du filtre, son arbre d'entraînement étant coaxial au filtre.
4. Appareil d'aspiration selon la revendication 3, caractérisé en ce qu'une première extrémité du filtre (31) est montée de manière qu'elle empêche les fuites et est de préférence raccordée intimement à l'arbre menant (29) du moteur (25) et montée rigidement sur cet arbre, et en ce que l'autre extrémité du filtre est raccordée de manière étanche afin qu'elle puisse tourner par rapport à une paroi de support ou analogue qui sépare de préférence le récipient (1) de l'élément d'aspiration (41).
5. Appareil d'aspiration selon la revendication 3, caractérisé en ce qu'une première extrémité du filtre est montée de manière qu'elle empêche les fuites et est de préférence raccordée intimement à l'arbre menant du moteur et montée rigidement sur cet arbre, et en ce que l'autre extrémité du filtre est disposée de manière que, lorsque l'élément d'aspiration fonctionne, le filtre coopère rigidement et de manière étanche avec une paroi de support ou analogue qui sépare de préférence le récipient de l'élément d'aspiration, et que, lorsque l'élément d'aspiration ne fonctionne pas et le filtre doit être entraîné en rotation, il se trouve à une distance de la paroi de support ou analogue telle que le filtre peut tourner librement, le filtre et le paroi de support étant disposés de manière qu'ils puissent se déplacer mutuellement dans la direction axiale du filtre.
6. Appareil d'aspiration selon l'une quelconque des revendications précédentes, caractérisé en ce que le récipient (1) de séparation grossière et son entrée d'aspiration (43) constituent un séparateur à cyclone.
7. Appareil d'aspiration selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif d'évacuation (3,5,7) est destiné à se fermer automatiquement lorsque l'élément d'aspiration (41) est en fonctionnement, et à s'ouvrir automatiquement au moins lorsqu'un excès de pression est crée dans le récipient (1) de séparation grossière à la suite de la rotation du filtre (31).
8. Appareil d'aspiration selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un filtre final (39) est placé en aval du filtre de séparation fine (31), le filtre final étant placé dans un espace (35) qui entoure au moins essentiellement le récipient (1) de séparation grossière, l'élément d'aspiration (41) étant disposé de préférence dans une partie supérieure amovible de l'appareil et ayant son côté d'aspiration qui communique avec ledit espace.
9. Appareil d'aspiration selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'un filtre final (89) est placé à l'intérieur du filtre (31) de séparation fine et coaxialement à celui-ci, et est monté, de préférence de façon amovible, sur un tube axial (21) de montage du filtre de séparation fine, le tube de montage ayant des ouvertures (19) de passage d'air qui est évacué par l'intermédiaire du tube après circulation à travers le filtre.
EP87850118A 1986-04-10 1987-04-09 Aspirateur Expired - Lifetime EP0245224B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87850118T ATE58631T1 (de) 1986-04-10 1987-04-09 Saugvorrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8601621A SE452850B (sv) 1986-04-10 1986-04-10 Sugapparat
SE8601621 1986-04-10

Publications (2)

Publication Number Publication Date
EP0245224A1 EP0245224A1 (fr) 1987-11-11
EP0245224B1 true EP0245224B1 (fr) 1990-11-28

Family

ID=20364132

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87850118A Expired - Lifetime EP0245224B1 (fr) 1986-04-10 1987-04-09 Aspirateur

Country Status (4)

Country Link
EP (1) EP0245224B1 (fr)
AT (1) ATE58631T1 (fr)
DE (1) DE3766411D1 (fr)
SE (1) SE452850B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8001652B2 (en) 1998-01-09 2011-08-23 Techtronic Floor Care Technology Limited Upright vacuum cleaner with cyclonic airflow

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5287591A (en) * 1992-03-30 1994-02-22 Racine Industries, Inc. Carpet cleaning machine with convertible-use feature
GB9726676D0 (en) * 1997-12-17 1998-02-18 Notetry Ltd A vacuum cleaner
AU747056B2 (en) * 1997-12-17 2002-05-09 Dyson Technology Limited A vacuum cleaner
US6070291A (en) * 1998-01-09 2000-06-06 Royal Appliance Mfg. Co. Upright vacuum cleaner with cyclonic air flow
DE29822388U1 (de) * 1998-12-16 1999-03-11 Electrostar Schöttle GmbH & Co, 73262 Reichenbach Filtervorrichtung mit Rüttler
JP3530436B2 (ja) * 1999-01-29 2004-05-24 三洋電機株式会社 掃除機用集塵装置及びアップライト型掃除機
KR20010014570A (ko) * 1999-04-23 2001-02-26 구자홍 싸이클론 집진장치의 압력손실 저감 장치
DE19938774A1 (de) * 1999-08-16 2001-03-01 Lundin Filter Gmbh Vorrichtung zum Abtrennen von Teilchen aus einem Fluid
KR100444324B1 (ko) * 1999-11-12 2004-08-16 삼성광주전자 주식회사 진공청소기의 사이클론집진장치
KR100444551B1 (ko) * 1999-12-06 2004-08-16 삼성광주전자 주식회사 사이클론방식 진공청소기
GB2372433A (en) * 2001-02-24 2002-08-28 Dyson Ltd Collecting chamber for bagless vacuum cleaner, with dust agitator
US7152277B2 (en) * 2003-03-13 2006-12-26 Samsung Gwangju Electronics Co., Ltd. Filter assembly for cyclone type dust collecting apparatus of a vacuum cleaner
EP1625882A1 (fr) * 2004-08-10 2006-02-15 Gunther Neumann Dispositif pour la purification d'air
EP1629761B1 (fr) * 2004-08-31 2012-05-09 LG Electronics Inc. Unité de collection de poussière pour aspirateur
ES2268998B1 (es) * 2006-05-08 2008-05-16 Sistema De Aspiracion Centralizada Del Hogar, S.L. Equipo de limpieza por aspiracion.
DE102009035602A1 (de) 2009-07-31 2011-02-10 BSH Bosch und Siemens Hausgeräte GmbH Staubsauger mit Filter
JP6574111B2 (ja) * 2015-07-06 2019-09-11 株式会社やまびこ バキュームクリーナ

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Publication number Priority date Publication date Assignee Title
DE1059636B (de) * 1954-07-08 1959-06-18 Siemens Elektrogeraete Gmbh Staubsauger mit einer Reinigungsvorrichtung fuer das Staubfilter
US3167414A (en) * 1962-10-29 1965-01-26 Wright Central vacuum cleaning apparatus
US3271936A (en) * 1963-01-30 1966-09-13 Ventola Sa Atel Const Apparatus for collecting automatically fibrous materials suspended in air
US4222755A (en) * 1978-11-17 1980-09-16 Grotto Lavon P Air filter arrangement to permit cleaning without removing element
US4482367A (en) * 1982-07-15 1984-11-13 Howeth David Franklin Self-cleaning air filter system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8001652B2 (en) 1998-01-09 2011-08-23 Techtronic Floor Care Technology Limited Upright vacuum cleaner with cyclonic airflow

Also Published As

Publication number Publication date
EP0245224A1 (fr) 1987-11-11
SE452850B (sv) 1987-12-21
DE3766411D1 (de) 1991-01-10
ATE58631T1 (de) 1990-12-15
SE8601621D0 (sv) 1986-04-10
SE8601621L (sv) 1987-10-11

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