EP0468282B1 - Dispositif indicateur de remplissage pour sac à poussières d'aspirateur - Google Patents

Dispositif indicateur de remplissage pour sac à poussières d'aspirateur Download PDF

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Publication number
EP0468282B1
EP0468282B1 EP91111498A EP91111498A EP0468282B1 EP 0468282 B1 EP0468282 B1 EP 0468282B1 EP 91111498 A EP91111498 A EP 91111498A EP 91111498 A EP91111498 A EP 91111498A EP 0468282 B1 EP0468282 B1 EP 0468282B1
Authority
EP
European Patent Office
Prior art keywords
connecting piece
vacuum cleaner
indicating device
opening
housing
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
EP91111498A
Other languages
German (de)
English (en)
Other versions
EP0468282A1 (fr
Inventor
Herbert Kess
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.)
BOSCH-SIEMENS HAUSGERAETE GMBH
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP0468282A1 publication Critical patent/EP0468282A1/fr
Application granted granted Critical
Publication of EP0468282B1 publication Critical patent/EP0468282B1/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
    • A47L9/19—Means for monitoring filtering operation

Definitions

  • a display device attached to a vacuum cleaner housing and showing the degree of filling of a filter bag inserted in the vacuum cleaner housing
  • the invention relates to a display device mounted on a vacuum cleaner housing according to the preamble of claim 1.
  • connection piece is inserted with its connection end directly into an opening in a wall delimiting the dust space of the vacuum cleaner.
  • This opening has a constant width over its full depth.
  • a bead is formed on the outer circumference of the connection end, with which the connection piece rests on the wall of the dust chamber.
  • a display device arranged on a vacuum cleaner in which a membrane piston is provided.
  • the diaphragm is subjected to atmospheric pressure on one side and the negative pressure prevailing in the vacuum cleaner housing on the other side.
  • the control device is connected to the vacuum chamber by means of a molded part on the housing of the control device Pipe approach and a line connected to this and connected to the interior of the vacuum cleaner. With this display device there is therefore no direct connection to the vacuum chamber of the vacuum cleaner.
  • the invention has for its object to develop a display device of the generic type so that a trouble-free connection of the display device to the vacuum chamber of a vacuum cleaner is possible.
  • a significant simplification of the assembly results from the fact that the inlet opening is surrounded by a sealing lip which is formed on the connecting piece and forms a ring, the thickness of which decreases towards its free end. In such a configuration, additional operations for the attachment of separate sealing elements are omitted.
  • a cover frame which can be fastened to the housing of the vacuum cleaner can advantageously be connected to the connecting piece.
  • the connection is expediently made via a film hinge, so that the parts are still movable relative to one another.
  • connection piece 1 with a connecting piece and 2 with a via a film hinge 3 connected to the connecting piece 1 cover frame.
  • the connector 1 has a receiving bore 4 for a chick 5, which is used to set the response characteristic of the display device. Furthermore, an inlet opening 6 and an outlet opening 7 are provided on the connection piece 1.
  • the inlet opening 6 is surrounded by a sealing lip 8 forming a ring.
  • the sealing lip 8 decreases in strength towards its free end 9. As a result, the necessary elasticity of the sealing lip 8 is achieved.
  • the outlet opening 7 is surrounded by a connecting piece 11 having a sealing bead 10 on its outer circumference.
  • the cover frame 2 When mounting the display device on a vacuum cleaner housing 12, the cover frame 2 is folded down by 180 ° towards the connector 1, as indicated by an arrow 13 in FIG. In Figure 2, the cover frame 2 is shown in its folded state.
  • the connector 1 is in the assembly of the display device on a vacuum cleaner housing with its sealing lip 8 in a connection opening formed as a bore 14 inserted, which is located in a wall 15 delimiting the vacuum chamber of the vacuum cleaner.
  • the bore 14 is tapered towards the vacuum chamber. This ensures that the sealing lip 8 bears tightly against the wall of the bore 14 regardless of any manufacturing tolerances.
  • a pipe part 16 which forms the piston space and is made of transparent material (glass or plastic), is plugged onto the connecting piece 11 with its one end 17.
  • the tubular part 16 is held by side wall parts 18 and by a stop 19 of the cover frame 2.
  • a piston 21 coupled to a return spring 20 is arranged displaceably in the tubular part 16.
  • the other end 22 of the tubular part 16 is connected via a connecting channel 23 formed between the cover frame 2 and the vacuum cleaner housing 12 to an opening 24 of the cover frame 2 leading to the atmosphere.
  • On the cover frame 2 there is also a cutout 25 which leaves the tubular part 16 free. Through this cutout 25, the piston 21 adjusted in the tube part 16 in proportion to the pressure difference existing between atmosphere and negative pressure can be observed.
  • the adjustment distance of the piston 21 is a measure of the degree of filling of the filter bag.
  • sealing elements sealing lip 8 or sealing bead 10
  • sealing lip 8 or sealing bead 10 a separate installation of such parts is unnecessary.
  • such elements achieve a practically trouble-free seal, since no displacements leading to leaks are possible, as is the case with separate parts.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Vacuum Packaging (AREA)
  • Packages (AREA)

Claims (6)

  1. Dispositif indicateur monté sur un corps d'aspirateur, indiquant le degré de remplissage d'un sac de filtrage monté dans le corps d'aspirateur, dans lequel un piston (21) relié à un ressort de rappel et couplé directement ou indirectement à un élément indicateur est monté coulissant dans la chambre à piston d'un logement (16) de piston, et dans lequel dispositif, en outre, la chambre à piston est soumise par l'un de ses côtés à la pression atmosphérique, et de l'autre côté, par l'intermédiaire d'un raccord (1) muni d'un orifice d'entrée (6) et d'un orifice (7) de sortie, à la dépression régnant dans l'aspirateur, le raccord étant à cet effet raccordé par son orifice d'entrée (6) de façon étanche à un orifice de raccordement (14) ménagé dans une paroi (15) de la chambre sous dépression du corps d'aspirateur, et par son orifice de sortie (7), de façon étanche, à la chambre à piston, l'orifice d'entrée (6) du raccord (1) ayant une forme circulaire, caractérisé en ce que l'orifice d'entrée est formé d'un élément d'étanchéité (8) conformé de façon à s'appliquer de manière étanche sur la paroi de l'orifice de raccordement (14) en forme de trou (14) circulaire et se rétrécissant coniquement en direction de la chambre sous dépression.
  2. Dispositif indicateur selon la revendication 1,
    caractérisé en ce que l'orifice d'entrée (6) est entouré d'une lèvre d'étanchéité (8) formant un anneau, issue du raccord (1) et dont l'épaisseur diminue en direction de son extrémité libre (9).
  3. Dispositif indicateur selon la revendication 1 ou 2, caractérisé en ce que l'orifice de sortie (7) du raccord (1) est entouré d'un embout (11) de raccordement sur lequel peut être enfilée la pièce tubulaire (16) formant la chambre à piston.
  4. Dispositif indicateur selon la revendication 3,
    caractérisé en ce qu'un bourrelet d'étanchéité (10) est prévu sur la périphérie extérieur de l'embout de raccordement (11).
  5. Dispositif indicateur selon l'une ou plusieurs des revendications précédentes,
    caractérisé en ce qu'un cadre de recouvrement (2) susceptible d'être fixé au corps de l'aspirateur est relié à l'embout de raccordement (1) en faisant corps avec lui.
  6. Dispositif indicateur selon la revendication 5,
    caractérisé en ce que le raccord (1) et le cadre de recouvrement (2) sont reliés entre eux par l'intermédiaire d'une charnière (3) du type feuille mince.
EP91111498A 1990-07-24 1991-07-10 Dispositif indicateur de remplissage pour sac à poussières d'aspirateur Expired - Lifetime EP0468282B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9010969U DE9010969U1 (de) 1990-07-24 1990-07-24 Anzeigevorrichtung für den Füllgrad eines in einem Staubsauger eingesetzten Filterbeutels
DE9010969U 1990-07-24

Publications (2)

Publication Number Publication Date
EP0468282A1 EP0468282A1 (fr) 1992-01-29
EP0468282B1 true EP0468282B1 (fr) 1994-05-18

Family

ID=6855897

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91111498A Expired - Lifetime EP0468282B1 (fr) 1990-07-24 1991-07-10 Dispositif indicateur de remplissage pour sac à poussières d'aspirateur

Country Status (3)

Country Link
EP (1) EP0468282B1 (fr)
DE (2) DE9010969U1 (fr)
ES (1) ES2053246T3 (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3119369A (en) * 1960-12-28 1964-01-28 Ametek Inc Device for indicating fluid flow
SE362784B (fr) * 1972-02-11 1973-12-27 Electrolux Ab
DE2246961A1 (de) * 1972-09-25 1974-04-04 Siemens Elektrogeraete Gmbh Anzeigevorrichtung fuer den fuellgrad eines staubsaugerfilters
SE394076B (sv) * 1975-08-29 1977-06-06 Electrolux Ab Indikatoranordning for dammsugare.
DD130554A1 (de) * 1977-03-02 1978-04-12 Herbert Haeske Mittel zur regulierung und anzeige der saugkraft bei staubsaugern
DE3147999A1 (de) * 1981-12-04 1983-06-16 Vorwerk & Co Interholding Gmbh, 5600 Wuppertal Druckabfrageanordnung fuer staubsauger
DE3300250C2 (de) * 1983-01-05 1985-10-31 Siemens AG, 1000 Berlin und 8000 München Anzeigevorrichtung für den Füllgrad eines Staubsaugerfilterbeutels
DE8711958U1 (de) * 1987-09-03 1988-12-29 Siemens AG, 1000 Berlin und 8000 München Anzeigevorrichtung für den Füllgrad eines Staubsaugerfilters
DE3904398A1 (de) * 1989-02-14 1990-08-16 Mauz & Pfeiffer Progress Staubsauger
ES2070249T3 (es) * 1989-11-27 1995-06-01 Matsushita Electric Ind Co Ltd Indicador de recogida de polvo para aspiradores.

Also Published As

Publication number Publication date
EP0468282A1 (fr) 1992-01-29
DE59101651D1 (de) 1994-06-23
DE9010969U1 (de) 1991-11-28
ES2053246T3 (es) 1994-07-16

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