EP1595485B1 - Nozzle for vaccum cleaner - Google Patents
Nozzle for vaccum cleaner Download PDFInfo
- Publication number
- EP1595485B1 EP1595485B1 EP20040011059 EP04011059A EP1595485B1 EP 1595485 B1 EP1595485 B1 EP 1595485B1 EP 20040011059 EP20040011059 EP 20040011059 EP 04011059 A EP04011059 A EP 04011059A EP 1595485 B1 EP1595485 B1 EP 1595485B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- suction
- flow
- section
- cross
- floor nozzle
- 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
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- 239000004753 textile Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 2
- 241000252254 Catostomidae Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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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
Definitions
- the invention relates to a floor nozzle for household vacuum cleaner with a sliding sole, which has a working width of at least 250 mm and contains a molded suction mouth with a discharge opening into the suction mouth, a suction channel which adjoins the outflow opening and, a Saugrohran gleich Swiss which is pivotally inserted about a horizontal axis in the suction channel, wherein the suction mouth is formed as a groove-shaped depression, which is delimited by a front and rear suction mouth edge, and wherein the sliding sole has a bottom sliding surface adjoining the rear suction mouth edge.
- a floor nozzle with the features described above is known for example from the publications DE 298 12 377 U1, EP 0 898 924 A and the US design patent 333 539.
- Floor nozzles of the structure described have been proven in practice for teats that are used in the home, and are universally applicable both on smooth floors and on textile coverings.
- the known designs are designed for high-performance suckers and not yet optimized in terms of their flow pressure losses.
- the invention has the object to minimize the flow pressure loss in a floor nozzle for household vacuum cleaner.
- the object is achieved in that the distance of Saugmundkanten along the working width does not fall below a minimum value of 23 mm and that the discharge opening in the suction mouth has a minimum cross section of 1,000 mm 2 .
- the teaching according to the invention combines a wide suction mouth, that is to say a suction mouth with a large suction mouth spacing, with a large discharge opening within the suction mouth.
- the flow cross section of the outflow opening is greater than the measured in a sectional plane through the pivot axis channel cross section of the Saugrohran gleich concernedes.
- This is preferably in turn formed larger than the cross section of a tubular end of the Saugrohran gleich concernedes.
- the invention is based on the consideration that in the air flow within the floor nozzle from entry into the suction mouth to the outlet at the rear end of the Saugrohran gleich concerned, throttle points with a small cross-section as well as discontinuous cross-sectional extensions are to be avoided in order to minimize flow pressure losses.
- a preferred embodiment according to the invention therefore provides that the suction channel and the Saugrohran gleich Swiss form a means for guiding the suction air stream, the cross-section of which tapers approximately steadily from the discharge opening to the tubular end. This ensures that the flow is accelerated uniformly and not locally delayed, whereby the friction losses of the flow and thus the pressure loss are particularly small. Overall, it is possible by the teaching of the invention to work at a constant suction flow with a significantly reduced suction blower power.
- seals are expediently provided on the tilting joint, for example in the form of integrally formed sealing lips.
- the Saugmundkanten as a continuous bars without forming depressions. If thread lifters are arranged on the sliding sole of the floor nozzle, these are then limited accordingly by continuous high suction mouth edges.
- lateral openings of the floor nozzle for edge extraction are preferably dimensioned as small as possible.
- the floor nozzle according to the invention is adapted to vacuum cleaners with a low suction power.
- the vacuum cleaner contain an air-permeable bag for dust separation.
- the suction power effective on a floor nozzle depends on the permeability of the bag and the degree of filling of the bag.
- a secondary air opening is provided with an automatic negative pressure setting, which responds when an impermissible negative pressure occurs and prevented by defined inlet of external air that sets in the suction too high a vacuum.
- the floor nozzle can have a vertically moveable bristle carrier plate which can be actuated by means of a switching mechanism and which is equipped with front and rear bristle strips, a circumferential bristle ring or else with a combination of bristle strips and sealing lips.
- the suction mouth edges are arranged on this entire length at a distance of 25 to 30 mm from each other.
- the outflow opening can have a substantially rectangular flow cross-section, which is preferably more than 1200 mm 2 having.
- a roller or wheels are arranged on the rear, the Saugrohran gleich Swiss receiving end of the suction channel.
- the sliding sole is located on the floor covering when vacuuming textile floor coverings.
- the basic structure of the floor nozzle for household vacuum cleaner shown in the figures includes a sliding sole 1, which has a working width AB of at least 250 mm and a molded suction mouth 2 with a centrally arranged in the embodiment discharge opening 3.
- the floor nozzle furthermore has a suction channel 4 adjoining the outflow opening 3 and a suction pipe connecting piece 5, which is inserted into the suction channel 4 so as to be pivotable about a horizontal axis 6.
- the Saugrohran gleich Published 5 serves to connect a suction tube 7, which is connected by a hose with a vacuum cleaner.
- the suction mouth 2 is formed as a trough-shaped depression, which from a front and rear suction mouth edge 8, 8 'is limited. It contains no divider or other subdivisions.
- the sliding sole 1 has a bottom sliding surface 9 adjoining the rear suction mouth edge 8 '.
- the sliding sole 1 is connected to a suction head 10 which is connected to a pivotable about a horizontal axis 11 to the suction channel 4.
- impellers 12 are arranged at the rear end of the suction channel 4 .
- a vertically movable support plate 13 is arranged, are attached to the bristle strips 14 or a circumferential bristle ring.
- the bristle carrier plate 13 is adjustable and thereby the bristle strips 14 on the underside of the suction head 10 and extendable.
- the suction channel 4 is firmly formed on a suction head 10 '.
- the soleplate 1 is also firmly connected to the suction head 10 '.
- a support plate 13 is provided which is vertically adjustable by means of an actuating switch 15 and is equipped on the underside with bristle strips or bristle ring.
- actuating switch 15 At the rear end of the suction channel 4 and the suction head impellers or a central roller 12 'are provided in the form of a roller.
- the suction mouth edges 8, 8 ' are formed continuously without depressions. From FIGS. 2 and 4 it can be seen that thread lifters 16 are arranged on the sliding sole, which are delimited by the continuously high suction mouth edges 8, 8 '. Furthermore, each small openings 17 are provided for Randabsaugung at the ends of the suction mouth 2.
- the suction mouth edges 8, 8 'delimiting the suction mouth 2 have a spacing S which does not fall below a minimum value of 23 mm along the working width AB.
- the suction mouth edges are arranged at a distance S of 25 to 27 mm and substantially parallel to one another.
- the outflow opening 3 preferably has a substantially rectangular cross section and has a minimum cross section of 1,000 mm 2 . A flow cross section of more than 1,200 mm 2 is preferred. In this case, the flow cross-section of the discharge opening 3 is greater than the measured in a sectional plane through the pivot axis 6 channel cross section of the Saugrohran gleich Swisses 5.
- the measured in the sectional plane through the pivot axis 6 channel cross section of the Saugrohran gleich concernedes 5 is in turn greater than the cross section of an angle formed as an end piece 18 at the suction tube 7 is connected.
- the suction channel 4 and the Saugrohran gleich matters 5 form a device for guiding the suction air stream, whose cross-section tapers approximately steadily from the discharge opening to the tubular end of the Saugrohran gleich concernedes 5.
- design-related throttle points and extensions which are less than 10% based on the flow channel cross-section, are tolerable and should be included in the subject of the invention.
Description
Die Erfindung betrifft eine Bodendüse für Haushaltsstaubsauger mit
einer Gleitsohle, die eine Arbeitsbreite von mindestens 250 mm aufweist und einen eingeformten Saugmund mit einer in den Saugmund mündenden Abströmöffnung enthält,
einem Saugkanal, der an die Abströmöffnung anschließt und,
einem Saugrohranschlussstück, das um eine horizontale Achse verschwenkbar in den Saugkanal eingesetzt ist,
wobei der Saugmund als rinnenförmige Vertiefung ausgebildet ist, die von einer vorderen und hinteren Saugmundkante begrenzt ist, und wobei die Gleitsohle eine an die hintere Saugmundkante angrenzende Bodengleitfläche aufweist.The invention relates to a floor nozzle for household vacuum cleaner with
a sliding sole, which has a working width of at least 250 mm and contains a molded suction mouth with a discharge opening into the suction mouth,
a suction channel which adjoins the outflow opening and,
a Saugrohranschlussstück which is pivotally inserted about a horizontal axis in the suction channel,
wherein the suction mouth is formed as a groove-shaped depression, which is delimited by a front and rear suction mouth edge, and wherein the sliding sole has a bottom sliding surface adjoining the rear suction mouth edge.
Eine Bodendüse mit den eingangs beschriebenen Merkmalen ist beispielsweise aus den Druckschriften DE 298 12 377 U1, EP 0 898 924 A und dem US-Design Patent 333 539 bekannt. Bodendüsen des beschriebenen Aufbaus haben sich in der Praxis für Sauger, die im Haushalt eingesetzt werden, bewährt und sind sowohl auf Glattböden als auch auf textilen Belägen universell einsetzbar. Die bekannten Ausführungen sind allerdings für leistungsstarke Sauger ausgelegt und hinsichtlich ihrer Strömungsdruckverluste noch nicht optimiert.A floor nozzle with the features described above is known for example from the publications DE 298 12 377 U1, EP 0 898 924 A and the US design patent 333 539. Floor nozzles of the structure described have been proven in practice for teats that are used in the home, and are universally applicable both on smooth floors and on textile coverings. However, the known designs are designed for high-performance suckers and not yet optimized in terms of their flow pressure losses.
Vor diesem Hintergrund liegt der Erfindung die Aufgabe zugrunde, den Strömungsdruckverlust in einer Bodendüse für Haushaltsstaubsauger zu minimieren.Against this background, the invention has the object to minimize the flow pressure loss in a floor nozzle for household vacuum cleaner.
Ausgehend von einer Bodendüse mit den eingangs beschriebenen Merkmalen wird die Aufgabe erfindungsgemäß dadurch gelöst, dass der Abstand der Saugmundkanten entlang der Arbeitsbreite einen Mindestwert von 23 mm nicht unterschreitet und dass die Abströmöffnung im Saugmund einen Mindestquerschnitt von 1.000 mm2 aufweist. Die erfindungsgemäße Lehre kombiniert einen breiten Saugmund, also einen Saugmund mit einem großen Saugmundabstand, mit einer groß dimensionierten Abströmöffnung innerhalb des Saugmundes.Based on a floor nozzle with the features described above, the object is achieved in that the distance of Saugmundkanten along the working width does not fall below a minimum value of 23 mm and that the discharge opening in the suction mouth has a minimum cross section of 1,000 mm 2 . The teaching according to the invention combines a wide suction mouth, that is to say a suction mouth with a large suction mouth spacing, with a large discharge opening within the suction mouth.
Gemäß einer bevorzugten Ausführung der Erfindung ist der Strömungsquerschnitt der Abströmöffnung größer als der in einer Schnittebene durch die Schwenkachse gemessene Kanalquerschnitt des Saugrohranschlussstückes. Dieser ist vorzugsweise wiederum größer ausgebildet als der Querschnitt eines rohrförmigen Endes des Saugrohranschlussstückes. Die Erfindung beruht auf der Überlegung, dass bei der Luftströmung innerhalb der Bodendüse vom Eintritt in den Saugmund bis zum Austritt am rückwärtigen Ende des Saugrohranschlussstückes Drosselstellen mit kleinem Querschnitt ebenso wie unstetige Querschnittserweiterungen zu vermeiden sind, um Strömungsdruckverluste zu minimieren. Eine erfindungsgemäß bevorzugte Ausführung sieht daher vor, dass der Saugkanal und das Saugrohranschlussstück eine Einrichtung zu Führung des Saugluftstromes bilden, deren Querschnitt sich annähernd stetig von der Abströmöffnung bis zum rohrförmigen Ende verjüngt. Hierdurch ist gewährleistet, dass die Strömung gleichmäßig beschleunigt und nicht lokal verzögert wird, wodurch die Reibungsverluste der Strömung und damit der Druckverlust besonders klein werden. Insgesamt ist es durch die erfindungsgemäße Lehre möglich, bei einem gleichbleibenden Saugvolumenstrom mit einer deutlich reduzierten Sauggebläseleistung zu arbeiten.According to a preferred embodiment of the invention, the flow cross section of the outflow opening is greater than the measured in a sectional plane through the pivot axis channel cross section of the Saugrohranschlussstückes. This is preferably in turn formed larger than the cross section of a tubular end of the Saugrohranschlussstückes. The invention is based on the consideration that in the air flow within the floor nozzle from entry into the suction mouth to the outlet at the rear end of the Saugrohranschlussstückes throttle points with a small cross-section as well as discontinuous cross-sectional extensions are to be avoided in order to minimize flow pressure losses. A preferred embodiment according to the invention therefore provides that the suction channel and the Saugrohranschlussstück form a means for guiding the suction air stream, the cross-section of which tapers approximately steadily from the discharge opening to the tubular end. This ensures that the flow is accelerated uniformly and not locally delayed, whereby the friction losses of the flow and thus the pressure loss are particularly small. Overall, it is possible by the teaching of the invention to work at a constant suction flow with a significantly reduced suction blower power.
Um Undichtigkeiten zu minimieren, sind am Kippgelenk zweckmäßigerweise Dichtungen vorgesehen, z.B. in Form von angeformten Dichtlippen. Darüber hinaus ist es zweckmäßig, die Saugmundkanten als durchgehende Leisten ohne Vertiefungen auszubilden. Sofern an der Gleitsohle der Bodendüse Fadenheber angeordnet sind, sind diese dann entsprechend von durchlaufenden hohen Saugmundkanten begrenzt. Um das Ansaugen von Fehlluft weiter zu minimieren, sind seitliche Öffnungen der Bodendüse zur Randabsaugung vorzugsweise möglichst klein dimensioniert.In order to minimize leaks, seals are expediently provided on the tilting joint, for example in the form of integrally formed sealing lips. In addition, it is expedient, the Saugmundkanten as a continuous bars without forming depressions. If thread lifters are arranged on the sliding sole of the floor nozzle, these are then limited accordingly by continuous high suction mouth edges. In order to further minimize the intake of incorrect air, lateral openings of the floor nozzle for edge extraction are preferably dimensioned as small as possible.
Die erfindungsgemäße Bodendüse ist auf Staubsauggeräte mit einer schwachen Saugerleistung abgestimmt. Üblicherweise enthalten die Staubsauggeräte einen luftdurchlässigen Beutel zur Staubabscheidung. Die an einer Bodendüse wirksame Saugerleistung ist unter anderem abhängig von der Durchlässigkeit des Beutels sowie von dem Füllgrad des Beutels. Bei Verwendung sehr luftdurchlässiger, insbesondere unverschmutzter Beutel und/oder bei Verwendung eines Staubssauggerätes mit einer zu starken Saugerleistung besteht die Gefahr, dass die Bodendüse sich beim Saugen von hochflorigen textilen Bodenbelägen an dem Bodenbelag festsaugt. Dem kann dadurch entgegengewirkt werden, dass an der Bodendüse selbst oder am Saugrohr eine Nebenluftöffnung mit einer automatischen Unterdruckeinstellung vorgesehen wird, die bei Auftreten eines unzulässigen Unterdrucks anspricht und durch definierten Einlass von Fremdluft verhindert, dass sich im Saugmund ein zu großer Unterdruck einstellt.The floor nozzle according to the invention is adapted to vacuum cleaners with a low suction power. Usually, the vacuum cleaner contain an air-permeable bag for dust separation. Among other things, the suction power effective on a floor nozzle depends on the permeability of the bag and the degree of filling of the bag. When using very air-permeable, especially unpolluted bag and / or when using a Staubsauggerätes with too high suction capacity there is a risk that the floor nozzle sucks when sucking high-pile textile floor coverings on the floor covering. This can be counteracted by the fact that at the floor nozzle itself or on the suction pipe, a secondary air opening is provided with an automatic negative pressure setting, which responds when an impermissible negative pressure occurs and prevented by defined inlet of external air that sets in the suction too high a vacuum.
Die Bodendüse kann eine mit Hilfe eines Schaltmechanismus betätigbare, vertikal verfahrbare Borstenträgerplatte aufweisen, die mit vorderen und hinteren Borstenstreifen, einem umlaufenden Borstenkranz oder auch mit einer Kombination aus Borstenstreifen und Dichtlippen bestückt ist.The floor nozzle can have a vertically moveable bristle carrier plate which can be actuated by means of a switching mechanism and which is equipped with front and rear bristle strips, a circumferential bristle ring or else with a combination of bristle strips and sealing lips.
Gemäß einer bevorzugten Ausführung der Erfindung sind die Saugmundkanten auf dieser gesamten Länge in einem Abstand von 25 bis 30 mm zueinander angeordnet. Die Abströmöffnung kann einen im Wesentlichen rechteckförmigen Strömungsquerschnitt aufweisen, der vorzugsweise mehr als 1.200 mm2 aufweist. Zweckmäßigerweise sind an dem rückwärtigen, das Saugrohranschlussstück aufnehmenden Ende des Saugkanals eine Laufrolle oder Laufräder angeordnet. Die Gleitsohle liegt beim Saugen textiler Bodenbeläge auf dem Bodenbelag auf.According to a preferred embodiment of the invention, the suction mouth edges are arranged on this entire length at a distance of 25 to 30 mm from each other. The outflow opening can have a substantially rectangular flow cross-section, which is preferably more than 1200 mm 2 having. Conveniently, a roller or wheels are arranged on the rear, the Saugrohranschlussstück receiving end of the suction channel. The sliding sole is located on the floor covering when vacuuming textile floor coverings.
Im Folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung ausführlich erläutert. Es zeigen schematisch:
- Fig. 1
- die Seitenansicht einer erfindungsgemäßen Bodendüse für Staubsauger in Schnittdarstellung,
- Fig. 2
- eine Draufsicht auf die Gleitsohle der in Fig. 1 dargestellten Bodendüse,
- Fig. 3
- die Seitenansicht einer weiteren Ausführungsform der Erfindung, ebenfalls in Schnittdarstellung,
- Fig.4
- eine Draufsicht auf die Gleitsohle der in Fig. 3 dargestellten Bodendüsen,
- Fig. 1
- the side view of a floor nozzle according to the invention for vacuum cleaners in a sectional view,
- Fig. 2
- a plan view of the sliding sole of the floor nozzle shown in Fig. 1,
- Fig. 3
- the side view of another embodiment of the invention, also in section,
- Figure 4
- a plan view of the sliding sole of the bottom nozzles shown in Fig. 3,
Zum grundsätzlichen Aufbau der in den Figuren dargestellten Bodendüse für Haushaltsstaubsauger gehört eine Gleitsohle 1, die eine Arbeitsbreite AB von mindestens 250 mm aufweist und einen eingeformten Saugmund 2 mit einer im Ausführungsbeispiel mittig angeordneten Abströmöffnung 3 enthält. Die Bodendüse weist ferner einen an die Abströmöffnung 3 anschließenden Saugkanal 4 sowie ein Saugrohranschlussstück 5 auf, welches um eine horizontale Achse 6 verschwenkbar in den Saugkanal 4 eingesetzt ist. Das Saugrohranschlussstück 5 dient dem Anschluss eines Saugrohres 7, welches durch einen Schlauch mit einem Staubsauggerät verbunden wird. Der Saugmund 2 ist als rinnenförmige Vertiefung ausgebildet, die von einer vorderen und hinteren Saugmundkante 8, 8' begrenzt ist. Er enthält keinen Trennsteg oder andere Unterteilungen. Die Gleitsohle 1 weist eine an die hintere Saugmundkante 8' angrenzende Bodengleitfläche 9 auf.The basic structure of the floor nozzle for household vacuum cleaner shown in the figures includes a sliding sole 1, which has a working width AB of at least 250 mm and a molded suction mouth 2 with a centrally arranged in the
Bei dem in Fig. 1 dargestellten Ausführungsbeispiel ist die Gleitsohle 1 an einen Saugkopf 10 angeschlossen, der um eine horizontale Achse 11 schwenkbeweglich an den Saugkanal 4 angeschlossen ist. An dem rückwärtigen Ende des Saugkanals 4 sind Laufräder 12 angeordnet. Innerhalb des Saugkopfes ist eine vertikal bewegliche Trägerplatte 13 angeordnet, an der Borstenleisten 14 oder ein umlaufender Borstenkranz befestigt sind. Mittels eines Betätigungsschalters 15 ist die Borstenträgerplatte 13 verstellbar und dadurch die Borstenleisten 14 an der Unterseite des Saugkopfes 10 ein- und ausfahrbar.In the embodiment shown in Fig. 1, the sliding sole 1 is connected to a
Im Ausführungsbeispiel der Fig. 3 ist der Saugkanal 4 an einen Saugkopf 10' fest angeformt. Die Gleitsohle 1 ist mit dem Saugkopf 10' ebenfalls fest verbunden. Innerhalb des Saugkopfes 10' ist eine Trägerplatte 13 vorgesehen, die mit Hilfe eines Betätigungsschalters 15 vertikal verstellbar ist und unterseitig mit Borstenleisten oder Borstenkranz bestückt ist. An dem rückwärtigen Ende des Saugkanals 4 bzw. des Saugkopfes sind Laufräder oder eine mittige Laufrolle 12' in Form einer Walze vorgesehen.In the embodiment of FIG. 3, the
Um einen möglichst geringen Fehllufteintritt zu gewährleisten, sind die Saugmundkanten 8, 8' durchgehend ohne Vertiefungen ausgebildet. Aus den Fig. 2 und 4 ist ersichtlich, dass an der Gleitsohle Fadenheber 16 angeordnet sind, die von den durchlaufend hohen Saugmundkanten 8. 8' begrenzt werden. Ferner sind jeweils kleine Öffnungen 17 zur Randabsaugung an den Enden des Saugmundes 2 vorgesehen.In order to ensure the least possible ingress of foul air, the
Bei den erfindungsgemäßen Bodendüsen weisen die den Saugmund 2 begrenzenden Saugmundkanten 8, 8' einen Abstand S auf, der entlang der Arbeitsbreite AB einen Mindestwert von 23 mm nicht unterschreitet. Im Ausführungsbeispiel sind die Saugmundkanten in einem Abstand S von 25 bis 27 mm und im Wesentlichen parallel zueinander angeordnet. Die Abströmöffnung 3 hat vorzugsweise einen im Wesentlichen rechteckförmigen Querschnitt und weist einen Mindestquerschnitt von 1.000 mm2 auf. Bevorzugt ist ein Strömungsquerschnitt von mehr als 1.200 mm2. Dabei ist der Strömungsquerschnitt der Abströmöffnung 3 größer als der in einer Schnittebene durch die Schwenkachse 6 gemessene Kanalquerschnitt des Saugrohranschlussstückes 5. Der in der Schnittebene durch die Schwenkachse 6 gemessene Kanalquerschnitt des Saugrohranschlussstückes 5 ist wiederum größer als der Querschnitt eines als Winkelrohr ausgebildeten Endstückes 18, an den das Saugrohr 7 anschließbar ist. Der Saugkanal 4 und das Saugrohranschlussstück 5 bilden eine Einrichtung zur Führung des Saugluftstromes, deren Querschnitt sich annähernd stetig von der Abströmöffnung bis zum rohrförmigen Ende des Saugrohranschlussstückes 5 verjüngt. Konstruktiv bedingte Drosselstellen und Erweiterungen, die weniger als 10% bezogen auf den Strömungskanalquerschnitt betragen, sind jedoch tolerierbar und sollen von dem Erfindungsgegenstand mit umfasst sein. Auf dem Weg von der Abströmöffnung innerhalb des Saugmundes bis zum rohrförmigen Ende des Saugrohranschlussstückes wird eine gleichmäßige Beschleunigung der Luftströmung angestrebt, wodurch eine Minimierung der Strömungsdruckverluste erreichbar ist.In the case of the floor nozzles according to the invention, the suction mouth edges 8, 8 'delimiting the suction mouth 2 have a spacing S which does not fall below a minimum value of 23 mm along the working width AB. In the exemplary embodiment, the suction mouth edges are arranged at a distance S of 25 to 27 mm and substantially parallel to one another. The
Claims (8)
- A floor nozzle for domestic vacuum cleaners with
a sliding base (1), which has a working width (AB) of at least 250 mm and contains a moulded-in suction mouth (2) with a flow-off opening (3) emerging into the suction mouth,
a suction conduit (4), which follows on from the flow-off opening (3) and
a suction pipe connection piece (5), which is inserted into the suction conduit (4) so as to be swivellable about a horizontal axis (6)
whereby the suction mouth (2) is designed as a groove-shaped recess, which is bounded by a front and rear suction mouth edge (8, 8'), and whereby the sliding base (1) has a floor sliding face (9) adjacent to the rear suction mouth edge (8), characterised in that the spacing (S) of the suction mouth edges (8, 8') along the working width does not fall short of a minimum value of 23 mm and that the flow-off opening (3) in the suction mouth (2) has a minimum cross-section of 1000 mm2. - The floor nozzle according to claim 1, characterised in that the flow cross-section of the flow-off opening (3) is greater than the conduit cross-section of the suction pipe connection piece (5) measured in a sectional plane through the swivelling axis (6).
- The floor nozzle according to claim 1 or 2, characterised in that the suction pipe connection piece (5) has a tubular end (18) and that the cross-section of the suction pipe connection piece (5) measured in a sectional plane through the swivelling axis (6) is greater than the cross-section of the tubular end (18).
- The floor nozzle according to any one of claims 1 to 3, characterised in that the suction conduit (4) and the suction pipe connection piece (5) form an arrangement for the guidance of the suction air flow, the cross-section whereof tapers approximately constantly from the flow-off opening (3) up to the tubular end (18).
- The floor nozzle according to any one of claims 1 to 4, characterised in that the suction mouth edges (8, 8') are disposed over their whole length at a distance of 25 mm to 30 mm from one another.
- The floor nozzle according to any one of claims 1 to 5, characterised in that the flow-off opening (3) has an essentially rectangular cross-section.
- The floor nozzle according to any one of claims 1 to 6, characterised in that the flow-off opening (3) has a flow cross-section of more than 1200 mm2.
- The floor nozzle according to any one of claims 1 to 7, characterised in that a running roller (12') or running wheels (12) are disposed at the rear end of the suction conduit (4) that receives the suction pipe connection piece (5).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP20040011059 EP1595485B1 (en) | 2004-05-10 | 2004-05-10 | Nozzle for vaccum cleaner |
| DE200450003342 DE502004003342D1 (en) | 2004-05-10 | 2004-05-10 | Floor nozzle for vacuum cleaner |
| CNB2005100550657A CN100337576C (en) | 2004-05-10 | 2005-03-15 | Nozzle for vaccum cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP20040011059 EP1595485B1 (en) | 2004-05-10 | 2004-05-10 | Nozzle for vaccum cleaner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1595485A1 EP1595485A1 (en) | 2005-11-16 |
| EP1595485B1 true EP1595485B1 (en) | 2007-03-28 |
Family
ID=34924935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20040011059 Expired - Fee Related EP1595485B1 (en) | 2004-05-10 | 2004-05-10 | Nozzle for vaccum cleaner |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1595485B1 (en) |
| CN (1) | CN100337576C (en) |
| DE (1) | DE502004003342D1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004005641A1 (en) * | 2004-02-04 | 2005-09-01 | Miele & Cie. Kg | Nozzle for a floor care appliance |
| DE102012106571B4 (en) * | 2012-07-19 | 2015-12-31 | Wessel-Werk Gmbh | Vacuum cleaner nozzle, in particular for household vacuum cleaners |
| DE102013223863A1 (en) * | 2013-11-21 | 2015-05-21 | BSH Hausgeräte GmbH | Suction nozzle for a vacuum cleaner |
| CN104013356A (en) * | 2014-05-09 | 2014-09-03 | 苏州艾利欧电器有限公司 | Floor brush with independent air flues |
| DE102015101339A1 (en) * | 2015-01-29 | 2016-08-04 | Wessel-Werk Gmbh & Co. Kg | Suction nozzle for vacuuming hard floor surfaces |
| CN105520690A (en) * | 2015-11-30 | 2016-04-27 | 苏州市诚品精密机械有限公司 | Multi-purpose cleaning machine |
| ITUB20160903A1 (en) * | 2016-02-19 | 2017-08-19 | New Ermes Europe Srl | Base plate for suction head for vacuum cleaner or similar |
| US11224319B2 (en) | 2017-12-11 | 2022-01-18 | New Ermes Europe S.R.L. | Base plate for a vacuum cleaner suction head for the suction of fine dust and large debris |
| JP1641037S (en) | 2018-09-18 | 2019-09-09 | ||
| IT202000001555A1 (en) | 2020-01-28 | 2021-07-28 | New Ermes Europe Srl | Adapter device for cordless electric vacuum cleaner |
| USD953673S1 (en) | 2020-02-17 | 2022-05-31 | New Ermes Europe S.R.L. | Head of a vacuum cleaner |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE862654C (en) * | 1950-09-06 | 1953-01-12 | Siemens Ag | Vacuum cleaner nozzles, in particular articulated nozzles |
| DE3100164A1 (en) * | 1981-01-07 | 1982-08-05 | Vorwerk & Co Interholding Gmbh, 5600 Wuppertal | VACUUM CLEANER NOZZLE |
| FR2716611A1 (en) * | 1994-02-25 | 1995-09-01 | Carre Francois | Suction head for vacuum cleaner, reducing work fatigue |
| DE19738036B4 (en) * | 1997-08-30 | 2004-01-29 | Wessel-Werk Gmbh | Suction head for vacuum cleaner |
| TR200202100T2 (en) * | 2000-03-10 | 2003-01-21 | Ar�El�K Anon�M ��Rket� | Vacuum cleaner brush |
-
2004
- 2004-05-10 EP EP20040011059 patent/EP1595485B1/en not_active Expired - Fee Related
- 2004-05-10 DE DE200450003342 patent/DE502004003342D1/en active Active
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2005
- 2005-03-15 CN CNB2005100550657A patent/CN100337576C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1695534A (en) | 2005-11-16 |
| EP1595485A1 (en) | 2005-11-16 |
| CN100337576C (en) | 2007-09-19 |
| DE502004003342D1 (en) | 2007-05-10 |
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