DE4140630C1 - Vacuum cleaner nozzle with returned filtered air - has funnel shaped suction pipe enclosed by casing with annular space between them to which returned air is fed - Google Patents

Vacuum cleaner nozzle with returned filtered air - has funnel shaped suction pipe enclosed by casing with annular space between them to which returned air is fed

Info

Publication number
DE4140630C1
DE4140630C1 DE19914140630 DE4140630A DE4140630C1 DE 4140630 C1 DE4140630 C1 DE 4140630C1 DE 19914140630 DE19914140630 DE 19914140630 DE 4140630 A DE4140630 A DE 4140630A DE 4140630 C1 DE4140630 C1 DE 4140630C1
Authority
DE
Germany
Prior art keywords
air
vacuum cleaner
nozzle
returned
annular space
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 - Fee Related
Application number
DE19914140630
Other languages
German (de)
Inventor
Alfred 8000 Muenchen De Pfeiffer
Hans-Heinrich 7951 Erolzheim De Pfeiffer
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.)
PFEIFFER, ALFRED, 87724 OTTOBEUREN, DE PFEIFFER, H
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19914140630 priority Critical patent/DE4140630C1/en
Application granted granted Critical
Publication of DE4140630C1 publication Critical patent/DE4140630C1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00Details 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
    • A47L9/02Nozzles
    • A47L9/08Nozzles with means adapted for blowing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)

Abstract

The vacuum cleaner nozzle incorporates a wide-sectioned duct (5) which returns filtered discharge air into a pressurised pipe (7) opening tangentially into a cylindrical chamber (9). A funnel-shaped suction pipe (8) is enclosed by a casing (10) with annular space between them. The annular space contains a helical guide-flank (11). The lower edge of the housing (1) has slide-feet (14). ADVANTAGE - Designed so that air is evenly conveyed in circular motion to orifice where it combines with suction current to form cyclonic flow, ensuring that no air is blown outwards even if nozzle is lifted off floor.

Description

Die Erfindung bezieht sich auf Staubsaugerdüse nach dem Oberbegriff des Anspruchs 1.The invention relates to vacuum cleaner nozzle according to the preamble of claim 1.

Eine solche Düse ist in der DE-OS 39 12 866 beschrieben. Um den Saug­ stutzen ist jedoch ein Schaufelrad angeordnet, das von der Abluft an­ geblasen wird. Diese Düse ist jedoch in der Herstellung sehr aufwendig und im Betrieb sehr störanfällig.Such a nozzle is described in DE-OS 39 12 866. To the suction However, a paddle wheel is arranged to cut off the exhaust air is blown. However, this nozzle is very complex to manufacture and very susceptible to failure during operation.

Deswegen wurde bei einem ähnlichen Staubsauger (DE-OS 38 29 569) das Schaufelrad weggelassen und die Abluft direkt in die Kammer geblasen. Zur Erzeugung eines zyklonartigen Luftstromes ist ein Leitring vorge­ sehen. Da jedoch die Abluft praktisch unkontrolliert in die Kammer ge­ blasen wird und die Kammerform auch von der Form des Saugstutzens ab­ hängt, entstehen viele Toträume und unerwünschte Wirbel in der Luft­ strömung, die einen stabilen Aufbau des zyklonartigen Luftstromes er­ schweren.Therefore, it was in a similar vacuum cleaner (DE-OS 38 29 569) Paddle wheel omitted and the exhaust air blown directly into the chamber. A guide ring is provided for generating a cyclone-like air flow see. However, since the exhaust air is virtually uncontrolled into the chamber will blow and the chamber shape also from the shape of the suction nozzle hangs, there are many dead spaces and unwanted vortices in the air flow, which is a stable structure of the cyclone-like air flow heavy.

Aus der DE-OS 14 03 629 ist ein Staubsauger bekannt, bei dem ebenfalls die Abluft tangential in die Düse geblasen wird. Aus der Absaugöffnung dieser Düse ragt eine wendelförmige Gleitflanke hervor, die den krei­ senden Luftstrom auch kreisend aus der Düse herausführt. Da die aus der DE-OS 14 03 629 bekannte Düse sehr flach ausgeführt ist, entsteht le­ diglich eine flächige, kreisende Strömung, die daher nicht sehr stabil ist.From DE-OS 14 03 629 a vacuum cleaner is known, which also the exhaust air is blown tangentially into the nozzle. From the suction opening a helical sliding flank protrudes from this nozzle, which forms the circle send air flow also circular out of the nozzle. Since the from the DE-OS 14 03 629 known nozzle is very flat, le is created diglich a flat, circular flow, which is therefore not very stable is.

Der Erfindung liegt somit die Aufgabe zugrunde, eine Staubsaugerdüse der eingangs genannten Art so weiterzubilden, daß sie kostengünstig herzustellen ist und eine stabile zyklonartige Saugströmung erzeugt.The invention is therefore based on the object of a vacuum cleaner nozzle of the type mentioned in such a way that they are inexpensive is to be produced and generates a stable cyclone-like suction flow.

Die Aufgabe wird mit den im Anspruch 1 angegebenen Merkmalen gelöst. Durch die Anordnung des Mantels und der wendelförmigen Gleitflanke wird die Luft ohne jede Beeinflussung durch die Form des Saugstutzens in eine gleichmäßige, verlustarme, kreisende Strömung bis zur Saugmün­ dung gezwungen, die sich dann mit dem Saugstrom zu einer zyklonartigen Strömung verbindet. Dadurch wird eine wirkungsvolle Absaugung der Bo­ denfläche gewährleistet. Selbst beim Abheben der Düse von der Boden­ fläche wird keine Luft nach außen geblasen. Es ist damit möglich Feinstaub von unebenen Flächen im Abstand davon abzusaugen.The object is achieved with the features specified in claim 1. Due to the arrangement of the casing and the helical sliding flank the air is unaffected by the shape of the suction nozzle into a steady, low-loss, circular flow up to the Saugmün dung, which then converts with the suction flow to a cyclone-like Current connects. This ensures effective suction of the Bo area guaranteed. Even when lifting the nozzle off the floor  no air is blown to the outside. It is possible with it Extract fine dust from uneven surfaces at a distance from it.

Auch Teppiche und Teppichböden werden mit der erfindungsgemäßen Düse schonend abgesaugt, weil der kreisende Luftstrom die Fasern aufrich­ tet.Carpets and carpets are also with the nozzle according to the invention gently suctioned off because the circulating air flow straightens the fibers tet.

Vorteilhafte Ausgestaltungen sind in den Unteransprüchen wiedergege­ ben. So ist es durch die Anordnung von Gleitfüßen am Gehäuse möglich, Staub aus den Bodenecken durch den vorhandenen Luftspalt abzusaugen.Advantageous refinements are given in the subclaims ben. The arrangement of sliding feet on the housing makes it possible Vacuum dust from the floor corners through the existing air gap.

Nachstehend wird in den Figuren anhand eines bevorzugten Ausführungs­ beispiels die Erfindung näher erläutert.The following is a preferred embodiment in the figures example, the invention explained in more detail.

Fig. 1a zeigt den Längsschnitt C-D nach Fig 1b vom Sauggerät mit der Gebläseeinheit 3, den Abluftkanal 5, den Druckstutzen 7 mit der daran angeschlossenen Saugdüse. FIG. 1a shows the longitudinal section of Figure 1 b CD from the suction device with the blower unit 3, the exhaust duct 5, the pressure port 7 having the suction nozzle connected to it.

Fig. 1b zeigt die Draufsicht mit der Saugleitung aus beiden Saugstut­ zen. Fig. 1b shows the top view with the suction line from both Saugstut zen.

Fig. 1c zeigt den Querschnitt A-B nach Fig. 1a mit dem Abluftkanal mit einem breiten Durchgangsquerschnitt. Fig. 1c shows the cross section AB of Fig. 1a with the exhaust duct with a wide passage cross section.

Fig. 2a zeigt die Staubsaugerdüse im Querschnitt A-B nach der Fig 2b mit dem Druckstutzen 7, mit der zylindrischen Kammer 9, dem Saugstutzen 8, der mit einer wendelförmigen Gleitflanke umge­ ben ist, durch die die zurückgeführte Abluft vom Eintritt in die Kammer bis zur Saugebene kreisend geleitet wird. Fig. 2a shows the vacuum cleaner nozzle in cross section AB according to Fig. 2 b with the pressure port 7 , with the cylindrical chamber 9 , the suction port 8 , which is with a helical sliding flank ben, through which the returned exhaust air from the inlet to the chamber Suction plane is guided in a circle.

Fig. 2b zeigt die Staubsaugerdüse in Ansicht mit den Saugleitungen 8. FIG. 2b shows the vacuum cleaner nozzle in view of the suction lines. 8

Fig. 2c zeigt die Staubsaugerdüse im Schnitt C-D nach Fig. 2a mit der Abluftzuführung. FIG. 2c shows the vacuum cleaner nozzle in section CD according to FIG. 2a with the exhaust air supply.

Fig. 2d zeigt die Staubsaugerdüse in Ansicht des Pfeiles aus Fig. 2b. FIG. 2d shows the vacuum cleaner nozzle in the view of the arrow from FIG. 2b.

Fig. 3a zeigt die Staubsaugerdüse im Schnitt A-B nach Fig. 3c mit der zylindrischen Kammer und dem ummantelten Saugstutzen 8. FIG. 3a shows the vacuum cleaner nozzle in section AB according to FIG. 3c with the cylindrical chamber and the coated suction nozzle 8 .

Fig. 3b zeigt die Gleitflanke 11 in einer Abwicklung der Innenfläche der zylindrischen Kammer. FIG. 3b shows the slide flank 11 in a development of the inner surface of the cylindrical chamber.

Fig. 3c zeigt die Draufsicht der Staubsaugerdüse nach Fig. 3a im Schnitt mit dem Druckstutzen 7 und der Leitkappe 12. Fig. 3c shows the top view of the vacuum cleaner nozzle of Fig. 3a in section with the pressure port 7 and the Leitkappe 12th

Claims (3)

1. Staubsaugerdüse für einen Staubsauger mit Rückführung der gefilterten Abluft über einen Kanal mit breitem Querschnitt in einen Druckstutzen der Düse, der tangential in eine zylin­ drische Kammer mündet, wobei ein Saugstutzen zentrisch in der Kammer angeordnet ist, dadurch gekennzeichnet, daß ein Mantel (10) den Saugstutzen (8) mit Abstand umgibt, so daß zwischen der Kammerwand und dem Mantel (10) ein Ringraum entsteht, in den der Druckstutzen (7) mündet, und daß im Ringraum eine wendelförmige Gleitflanke (11) angeordnet ist.1.Vacuum cleaner nozzle for a vacuum cleaner with return of the filtered exhaust air via a channel with a broad cross-section into a pressure nozzle of the nozzle, which opens tangentially into a cylindrical chamber, a suction nozzle being arranged centrally in the chamber, characterized in that a jacket ( 10 ) surrounds the suction port ( 8 ) at a distance, so that between the chamber wall and the casing ( 10 ) an annular space is formed, into which the pressure port ( 7 ) opens, and that a helical sliding flank ( 11 ) is arranged in the annular space. 2. Staubsaugerdüse nach Anspruch 1, dadurch gekennzeichnet, daß der Saugstutzen (8) trichterförmig erweitert ist.2. Vacuum cleaner nozzle according to claim 1, characterized in that the suction nozzle ( 8 ) is expanded in a funnel shape. 3. Staubsaugerdüse nach Anspruch 1 oder 2, dadurch gekennzeich­ net, daß am unteren Rand des Gehäuses (1) Gleitfüße (14) an­ gebracht sind.3. Vacuum cleaner nozzle according to claim 1 or 2, characterized in that at the bottom of the housing ( 1 ) sliding feet ( 14 ) are brought to.
DE19914140630 1991-12-10 1991-12-10 Vacuum cleaner nozzle with returned filtered air - has funnel shaped suction pipe enclosed by casing with annular space between them to which returned air is fed Expired - Fee Related DE4140630C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19914140630 DE4140630C1 (en) 1991-12-10 1991-12-10 Vacuum cleaner nozzle with returned filtered air - has funnel shaped suction pipe enclosed by casing with annular space between them to which returned air is fed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19914140630 DE4140630C1 (en) 1991-12-10 1991-12-10 Vacuum cleaner nozzle with returned filtered air - has funnel shaped suction pipe enclosed by casing with annular space between them to which returned air is fed

Publications (1)

Publication Number Publication Date
DE4140630C1 true DE4140630C1 (en) 1993-02-25

Family

ID=6446667

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Application Number Title Priority Date Filing Date
DE19914140630 Expired - Fee Related DE4140630C1 (en) 1991-12-10 1991-12-10 Vacuum cleaner nozzle with returned filtered air - has funnel shaped suction pipe enclosed by casing with annular space between them to which returned air is fed

Country Status (1)

Country Link
DE (1) DE4140630C1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6237188B1 (en) 1997-12-26 2001-05-29 Toshiba Tec Kabushiki Kaisha Suction port body for vacuum-cleaner and vacuum-cleaner having the same
EP1142525A2 (en) * 2000-04-06 2001-10-10 Lg Electronics Inc. Air circulation type vacuum cleaner

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1403629A1 (en) * 1960-04-14 1970-01-15 Bowles Romald Edward Whirling device, in particular cleaning device
DE3829569A1 (en) * 1987-11-17 1990-03-08 Alfred Pfeiffer Vacuum cleaner nozzle for vacuum cleaners with returned exhaust air
DE3912866A1 (en) * 1989-04-19 1990-10-25 Alfred Pfeiffer Vacuum cleaner nozzle with filtered exhaust air return - has wide cross section in pressure connection connected tangentially to cylindrical chamber

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1403629A1 (en) * 1960-04-14 1970-01-15 Bowles Romald Edward Whirling device, in particular cleaning device
DE3829569A1 (en) * 1987-11-17 1990-03-08 Alfred Pfeiffer Vacuum cleaner nozzle for vacuum cleaners with returned exhaust air
DE3912866A1 (en) * 1989-04-19 1990-10-25 Alfred Pfeiffer Vacuum cleaner nozzle with filtered exhaust air return - has wide cross section in pressure connection connected tangentially to cylindrical chamber

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6237188B1 (en) 1997-12-26 2001-05-29 Toshiba Tec Kabushiki Kaisha Suction port body for vacuum-cleaner and vacuum-cleaner having the same
EP1142525A2 (en) * 2000-04-06 2001-10-10 Lg Electronics Inc. Air circulation type vacuum cleaner
EP1142525A3 (en) * 2000-04-06 2002-01-23 Lg Electronics Inc. Air circulation type vacuum cleaner

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Legal Events

Date Code Title Description
8100 Publication of the examined application without publication of unexamined application
D1 Grant (no unexamined application published) patent law 81
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: PFEIFFER, ALFRED, 87724 OTTOBEUREN, DE

8327 Change in the person/name/address of the patent owner

Owner name: PFEIFFER, ALFRED, 87724 OTTOBEUREN, DE PFEIFFER, H

8339 Ceased/non-payment of the annual fee