EP1145676B1 - Suction cleaner nozzle - Google Patents
Suction cleaner nozzle Download PDFInfo
- Publication number
- EP1145676B1 EP1145676B1 EP00107731A EP00107731A EP1145676B1 EP 1145676 B1 EP1145676 B1 EP 1145676B1 EP 00107731 A EP00107731 A EP 00107731A EP 00107731 A EP00107731 A EP 00107731A EP 1145676 B1 EP1145676 B1 EP 1145676B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- suction
- orifice
- suction orifice
- edges
- floor
- 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
Links
- 238000010276 construction Methods 0.000 claims description 4
- 238000007373 indentation Methods 0.000 claims 1
- 239000000428 dust Substances 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 6
- 239000000835 fiber Substances 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 3
- 239000004753 textile Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000008141 laxative Substances 0.000 description 1
- 230000002475 laxative effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
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
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- 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
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- 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
- A47L9/0666—Nozzles with fixed, e.g. adjustably fixed brushes or the like with tilting, floating or similarly arranged brushes, combs, lips or pads
Definitions
- the invention relates to a floor nozzle for vacuum cleaners an air duct, at the rear end of which a roller is connected, a rotating / tilting joint consisting of a connecting piece which can be pivoted into the air duct and an angled tube which is held in the connecting piece so that it can rotate, a suction head with a suction mouth on the bottom, delimited by thread lifters and suction mouth edges, which extends transversely to the suction direction essentially over the entire length of the suction head, wherein either the suction head is movably connected to the air duct by a further tilt joint or a suction mouthpiece is arranged in the suction head so as to be tiltable and wherein the suction mouth has a central section delimited by the thread lifters with a suction opening adjoining the air duct and on each side of the central section a suction channel delimited by the edges of the suction mouth.
- a floor nozzle of the construction described is from DE-U 298 12 377 known.
- the suction head by means of a tilt joint on the air duct connected.
- the suction head contains one vertically movable and operated by a foot switch Bristle holder with bristle strips through the bottom Openings in a base plate of the suction head can be moved in and out are.
- a foot switch Bristle holder with bristle strips through the bottom Openings in a base plate of the suction head can be moved in and out are.
- the tiltable on the suction head connected to the air duct adapts Bumps and is independent of the orientation of the suction tube connected to the winding tube always aligned plane-parallel to the floor to be cleaned.
- a floor nozzle which without Switching mechanism suitable for all floors both for vacuuming Carpet coverings can also be used to vacuum smooth floors is.
- the suction head is guided on rollers and points a tilting suction mouthpiece that is plane-parallel aligns with the floor covering to be cleaned.
- the suction mouthpiece consists of a narrow base plate with tub-like molded channel and is pivotable in the Suction head stored. In the direction of suction behind the suction nozzle is always arranged on the floor sealing strip.
- the suction mouth fits in the described versions uneven floors and is independent of posture and alignment of the suction tube connected to the winding tube aligned parallel to the floor. This allows basically an effective cleaning of the floor surface. on the other hand exists especially with deep-pile carpets there is a risk that the suction mouth will stick to the floor and the pushing force applied during the suction movements must increase sharply. In extreme cases the suction of the floor nozzle leads to unpleasant hopping effects, when they occur, effective cleaning is not is more possible.
- EP-A 0 302 515 describes a nozzle for vacuuming bedding and Woolen blankets described. It shows one as narrow Slit-shaped suction mouth, being in front and behind roller-shaped hold-down devices are arranged on the suction mouth, the surfaces of which are formed with cylindrical projections are.
- the publication contains the note that a small slot width of the suction mouth favorably on the Pushing force applied when handling the nozzle must become.
- a floor nozzle with balanced usage properties must meet numerous, different requirements.
- the Suction head should be sufficient (transverse to the direction of suction) Have length so that a large floor area with as much as possible little work movements can be cleaned.
- the suction mouth must also be designed so that fibers and small parts, e.g. Paper clips, shredded paper and the like are added become. In this respect, at least in some areas wide suction opening is useful.
- the floor nozzle must also have a good dust absorption capacity, that from the center not get worse towards the outer edges of the suction head may. By designing and dimensioning the suction mouth it must be ensured that the entire suction mouth sets the pressure distribution as evenly as possible.
- the floor nozzle must be designed so that they are moved with little pushing force when vacuuming can and even with deep-pile carpet coverings, where proper operation is no longer possible is excluded.
- the suction mouth consists of a straight, bottom open channel with parallel to each other arranged suction edges, the distance between them on average about 20 mm is.
- the width of the Suction mouth from the center of the suction head to the outside, and from about 25 mm to about 10 mm.
- the suction mouth in the area of its middle section is wider and has a recess which has the rear suction mouth edges in the suction direction interrupts in the area of a suction opening and on the back is bounded by a bridge, to which one with the rear thread lifter equipped with a pocket.
- the inflow cross-section of the suction mouth on the bottom takes with this configuration considerably.
- the known floor nozzles are in terms of fiber and Dust absorption largely optimized. Still they are Suction properties are not always balanced as the measures to improve dust and fiber absorption by a greater pushing force can be bought.
- the invention has for its object a floor nozzle to further develop the structure described at the beginning, that they still have good fiber and dust absorption can also be moved easily on textile floor coverings can and does not even with deep-pile carpets can suck up.
- the object is achieved according to the invention in that the suction mouth is wider in the area of the central section than in the narrow suction channels adjoining on both sides, and in that the inflow section on the bottom side of the suction mouth, which has a circumference of more than 530 mm, is smaller than 5000 mm 2 . If the limit value according to the invention is adhered to, it is impossible for the floor nozzle connected to a commercial floor vacuum cleaner to get stuck on textile floor coverings. The floor nozzle can be moved with little pushing force.
- the suction mouth is in the range of the middle section to be significantly wider than in of the sections adjoining on both sides. Surprised dust pickup is not adversely affected if the branches of the suction mouth adjacent to the central section very narrow, so with a very small distance between the suction mouth edges are formed. Also for them The length of the suction head (transverse to the direction of suction) results no restrictions. To comply with the specified on the suction cross-section is correspondingly narrower if the suction head has a long length.
- the distance between the suction mouth edges less than 16 mm, preferably less than 14 mm.
- pressure distribution in the suction mouth enhances cross-sectional expansion exhibit. The air flowing into the suction mouth can within the suction mouth with little flow pressure loss derived in the correspondingly wide suction channels become.
- Suction mouth wider in the area of its central section and has a recess which the in Suction direction rear suction mouth edges in the area of Intake opening interrupts and on the back by a web is limited to the one with the rear thread lifter equipped receiving pocket connects.
- the two sides the middle section adjoining sections of the suction mouth are accordingly narrow to the limit value according to the invention for the inflow cross section observed.
- Floor nozzle include an air duct 1, at the a roller 2 is connected to the rear end Swivel / tilt joint 3, which can be swiveled into the Air duct used connector and one in the Spigot angular tube held rotatably, as well a suction head 4 with a bottom-side thread lifter 5 and Saugmundkanten 6 limited suction mouth 7, which is transverse to the direction of suction essentially over the entire length of the Suction head 4 extends.
- the suction head 4 is by a Another tilt joint 8 movable on the air duct 1 connected and depends on the Alignment of one connected to the rotary / tilt joint 3 Suction pipe always parallel to the one to be cleaned Floor area.
- the suction mouth 7 is one of the Thread lifters 5 limited middle section 9 with a Air duct connecting intake 10 and on either side of the middle section 9 each one of the Has suction mouth edges 6 limited narrow suction channel 11.
- the suction mouth 7 is in the region of its central section 9 broader and e.g. a recess 12, which the suction mouth edges at the rear in the suction direction Area of the intake opening interrupts and on the back of a web 13 is limited to which one with the rear Thread lifter 5 equipped receiving pocket connects.
- the front and rear suction mouth edges 6 in the suction direction are arranged in parallel, the distance between the suction mouth edges being less than 16 mm.
- the channel-shaped section 11 of the suction mouth 7 can, as shown in FIG. 3, have a substantially rectangular cross section.
- the aim is an even pressure distribution in the Suction channel.
- Fig. 4 have the adjoining on both sides of the central section Suction channels 11 of the suction mouth 7 above the suction mouth edges 6 a cross-sectional widening which promotes the pressure distribution in the suction mouth on.
- the distance between the Saugmundkanten 6 is smaller than that above the Suction mouth edges measured width of the incoming air laxative channel.
- the design enables a very uniform pressure distribution along the suction mouth edges 6.
- the area of the inflow cross-section succeeds to keep small what is favorable to the Pushing force of the suction head affects.
- Pressure difference and air flow are in the floor nozzle measured.
- Canister vacuum cleaners become even more effective Air performance used, the inflow cross section of the Suction mouth can be reduced.
- the appropriate value is based on fewer attempts can be determined.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nozzles For Electric Vacuum Cleaners (AREA)
Description
Die Erfindung betrifft eine Bodendüse für Staubsauger mit
einem Luftführungskanal, an dessen rückwärtigem Ende
eine Laufrolle angeschlossen ist,
einem Dreh/Kippgelenk bestehend aus einem schwenkbeweglich
in den Luftführungskanal eingesetzten Stutzen
und einem in dem Stutzen drehbeweglich gehaltenen
Winkelrohr,
einem Saugkopf mit einem bodenseitigen, von Fadenhebern
und Saugmundkanten begrenzten Saugmund, der sich
quer zur Saugrichtung im wesentlichen über die gesamte
Länge des Saugkopfes erstreckt,
wobei entweder der Saugkopf durch ein weiteres Kippgelenk
beweglich an den Luftführungskanal angeschlossen oder ein
Saugmundstück kippbeweglich im Saugkopf angeordnet ist und
wobei der Saugmund einen von den Fadenhebern begrenzten
Mittelabschnitt mit einer an den Luftführungskanal anschließenden
Ansaugöffnung und beiderseits des Mittelabschnitts
jeweils einen von den Saugmundkanten begrenzten
Saugkanal aufweist.The invention relates to a floor nozzle for vacuum cleaners
an air duct, at the rear end of which a roller is connected,
a rotating / tilting joint consisting of a connecting piece which can be pivoted into the air duct and an angled tube which is held in the connecting piece so that it can rotate,
a suction head with a suction mouth on the bottom, delimited by thread lifters and suction mouth edges, which extends transversely to the suction direction essentially over the entire length of the suction head,
wherein either the suction head is movably connected to the air duct by a further tilt joint or a suction mouthpiece is arranged in the suction head so as to be tiltable and
wherein the suction mouth has a central section delimited by the thread lifters with a suction opening adjoining the air duct and on each side of the central section a suction channel delimited by the edges of the suction mouth.
Eine Bodendüse des beschriebenen Aufbaus ist aus DE-U 298 12 377 bekannt. Bei der bekannten Ausführung ist der Saugkopf mittels eines Kippgelenkes an den Luftführungskanal angeschlossen. Der Saugkopf enthält einen vertikal beweglichen und durch einen Fußschalter betätigbaren Borstenträger mit Borstenleisten, die durch bodenseitige Öffnungen in einer Bodenplatte des Saugkopfes ein- und ausfahrbar sind. Beim Saugen von Teppichbelägen gleitet die Bodenplatte auf dem zu reinigenden Boden. Zum Reinigen von glatten Bodenbelägen werden die Borstenleisten durch Betätigung des Fußschalters ausgefahren. Der kippbeweglich an den Luftführungskanal angeschlossene Saugkopf passt sich an Bodenunebenheiten an und ist unabhängig von der Ausrichtung des an das Wickelrohr angeschlossenen Saugrohres stets planparallel zu dem zu reinigenden Boden ausgerichtet.A floor nozzle of the construction described is from DE-U 298 12 377 known. In the known version is the Suction head by means of a tilt joint on the air duct connected. The suction head contains one vertically movable and operated by a foot switch Bristle holder with bristle strips through the bottom Openings in a base plate of the suction head can be moved in and out are. When vacuuming carpet, the slides Floor plate on the floor to be cleaned. For cleaning The bristle strips become smooth floor coverings by actuation of the foot switch extended. The tiltable on the suction head connected to the air duct adapts Bumps and is independent of the orientation of the suction tube connected to the winding tube always aligned plane-parallel to the floor to be cleaned.
Aus DE-A 42 43 244 ist eine Bodendüse bekannt, die ohne Umschaltmechanismus allbodentauglich sowohl zum Saugen von Teppichbelägen als auch zum Saugen von glatten Böden einsetzbar ist. Der Saugkopf ist auf Rollen geführt und weist ein kippbewegliches Saugmundstück auf, das sich planparallel zu dem zu reinigenden Bodenbelag ausrichtet. Das Saugmundstück besteht aus einer schmalen Bodenplatte mit wannenartig eingeformtem Kanal und ist schwenkbeweglich im Saugkopf gelagert. In Saugrichtung hinter dem Saugmundstück ist eine stets am Boden anliegende Bodendichtleiste angeordnet.From DE-A 42 43 244 a floor nozzle is known which without Switching mechanism suitable for all floors both for vacuuming Carpet coverings can also be used to vacuum smooth floors is. The suction head is guided on rollers and points a tilting suction mouthpiece that is plane-parallel aligns with the floor covering to be cleaned. The suction mouthpiece consists of a narrow base plate with tub-like molded channel and is pivotable in the Suction head stored. In the direction of suction behind the suction nozzle is always arranged on the floor sealing strip.
Bei den beschriebnen Ausführungen passt sich der Saugmund an Bodenunebenheiten an und ist unabhängig von der Haltung und Ausrichtung des an das Wickelrohr angeschlossenen Saugrohres parallel zum Boden ausgerichtet. Das ermöglicht grundsätzlich ein effektives Reinigen der Bodenfläche. Andererseits besteht insbesondere bei hochflorigen Teppichbe lägen die Gefahr, dass der Saugmund sich am Boden festsaugt und die Schiebekraft, die bei den Saugbewegungen aufgebracht werden muss, stark ansteigt. In extremen Fällen führt das Festsaugen der Bodendüse zu unangenehmen Hoppel-effekten, bei deren Auftreten ein wirksames Reinigen nicht mehr möglich ist.The suction mouth fits in the described versions uneven floors and is independent of posture and alignment of the suction tube connected to the winding tube aligned parallel to the floor. This allows basically an effective cleaning of the floor surface. on the other hand exists especially with deep-pile carpets there is a risk that the suction mouth will stick to the floor and the pushing force applied during the suction movements must increase sharply. In extreme cases the suction of the floor nozzle leads to unpleasant hopping effects, when they occur, effective cleaning is not is more possible.
In EP-A 0 302 515 ist eine Düse zum Saugen von Bettzeug und Wolledecken beschrieben. Sie weist einen als schmalen Schlitz ausgebildeten Saugmund auf, wobei vor und hinter dem Saugmund walzenförmige Niederhalter angeordnet sind, deren Oberflächen mit walzenförmigen Vorsprüngen ausgebildet sind. Die Druckschrift enthält den Hinweis, dass sich eine geringe Schlitzbreite des Saugmundes günstig auf die Schiebekraft auswirkt, die bei der Handhabung der Düse aufgebracht werden muss.EP-A 0 302 515 describes a nozzle for vacuuming bedding and Woolen blankets described. It shows one as narrow Slit-shaped suction mouth, being in front and behind roller-shaped hold-down devices are arranged on the suction mouth, the surfaces of which are formed with cylindrical projections are. The publication contains the note that a small slot width of the suction mouth favorably on the Pushing force applied when handling the nozzle must become.
Eine Bodendüse mit ausgewogenen Gebrauchseigenschaften muss zahlreiche, unterschiedliche Anforderungen erfüllen. Der Saugkopf soll (quer zur Saugrichtung) eine ausreichende Länge besitzen, damit eine große Bodenfläche mit möglichst wenig Arbeitsbewegungen gereinigt werden kann. Der Saugmund muss ferner so gestaltet sein, dass Fasern und Kleinteile, z.B. Büroklammern, Papierschnitzel und dergleichen aufgenommen werden. Insofern ist zumindest bereichsweise eine breite Ansaugöffnung zweckmäßig. Die Bodendüse muss ferner ein gutes Staubaufnahmevermögen besitzen, das von der Mitte zu den äußeren Rändern des Saugkopfes nicht schlechter werden darf. Durch die Gestaltung und Bemessung des Saugmundes muss sichergestellt sein, dass sich im gesamten Saugmund eine möglichst gleichmäßige Druckverteilung einstellt. A floor nozzle with balanced usage properties must meet numerous, different requirements. The Suction head should be sufficient (transverse to the direction of suction) Have length so that a large floor area with as much as possible little work movements can be cleaned. The suction mouth must also be designed so that fibers and small parts, e.g. Paper clips, shredded paper and the like are added become. In this respect, at least in some areas wide suction opening is useful. The floor nozzle must also have a good dust absorption capacity, that from the center not get worse towards the outer edges of the suction head may. By designing and dimensioning the suction mouth it must be ensured that the entire suction mouth sets the pressure distribution as evenly as possible.
Schließlich muss die Bodendüse so ausgebildet werden, dass sie beim Saugen mit geringer Schiebekraft bewegt werden kann und auch bei hochflorigen Teppichbelägen ein Festsaugen, bei dem ein ordnungsgemäßer Betrieb nicht mehr möglich ist, ausgeschlossen ist.Finally, the floor nozzle must be designed so that they are moved with little pushing force when vacuuming can and even with deep-pile carpet coverings, where proper operation is no longer possible is excluded.
In der Praxis eingeführte Bodendüsen des eingangs beschriebenen Aufbaus weisen einen in Saugrichtung gesehen verhältnismäßig breiten Saugmund auf, um nach herrschender Lehre eine gute Faser- und Staubaufnahme, insbesondere auch eine gleichmäßige Druckverteilung im Saugmund, zu gewährleisten. Der Saugmund besteht bei einigen Ausführungen aus einem geraden, bodenseitig offenen Kanal mit parallel zueinander angeordneten Saugkanten, deren Abstand im Mittel etwa 20 mm beträgt. Bei anderen Ausführungen nimmt die Breite des Saugmundes von der Saugkopfmitte nach außen hin ab, und zwar von etwa 25 mm auf etwa 10 mm.Floor nozzles of the type described in the introduction, introduced in practice Construction have a relatively seen in the suction direction wide mouth to order according to prevailing teaching good fiber and dust absorption, especially one to ensure even pressure distribution in the suction mouth. In some versions, the suction mouth consists of a straight, bottom open channel with parallel to each other arranged suction edges, the distance between them on average about 20 mm is. In other versions, the width of the Suction mouth from the center of the suction head to the outside, and from about 25 mm to about 10 mm.
Gemäß DE-C 199 00 968 ist es für die Faser- und Staubaufnahme vorteilhaft, wenn der Saugmund im Bereich seines Mittelabschnittes breiter ausgebildet ist und eine Vertiefung aufweist, welche die in Saugrichtung hinteren Saugmundkanten im Bereich einer Ansaugöffnung unterbricht und rückseitig von einem Steg begrenzt ist, an den eine mit dem hinteren Fadenheber bestückte Aufnahmetasche anschließt. Der bodenseitige Einströmquerschnitt des Saugmundes nimmt bei dieser Ausgestaltung beachtlich zu.According to DE-C 199 00 968 it is for fiber and dust absorption advantageous if the suction mouth in the area of its middle section is wider and has a recess which has the rear suction mouth edges in the suction direction interrupts in the area of a suction opening and on the back is bounded by a bridge, to which one with the rear thread lifter equipped with a pocket. The inflow cross-section of the suction mouth on the bottom takes with this configuration considerably.
Die bekannten Bodendüsen sind im Hinblick auf die Faserund Staubaufnahme weitgehend optimiert. Dennoch sind die Saugeigenschaften nicht immer ausgewogen, da die Maßnahmen zur Verbesserung der Staub- und Faseraufnahme durch eine größere Schiebekraft erkauft werden.The known floor nozzles are in terms of fiber and Dust absorption largely optimized. Still they are Suction properties are not always balanced as the measures to improve dust and fiber absorption by a greater pushing force can be bought.
Der Erfindung liegt die Aufgabe zugrunde, eine Bodendüse des eingangs beschriebenen Aufbaus so weiter auszubilden, dass sie bei unverändert guter Faser- und Staubaufnahme auch auf textilen Bodenbelägen leichtgängig bewegt werden kann und sich selbst bei hochflorigen Teppichböden nicht festsaugen kann.The invention has for its object a floor nozzle to further develop the structure described at the beginning, that they still have good fiber and dust absorption can also be moved easily on textile floor coverings can and does not even with deep-pile carpets can suck up.
Die Aufgabe wird erfindungsgemäß dadurch gelöst, dass der Saugmund im Bereich des Mittelabschnitts breiter ausgebildet ist als in den beiderseits anschließenden schmalen Saugkanälen und dass der bodenseitige Einströmquerschnitt des einen Umfang von mehr als 530 mm aufweisenden Saugmundes kleiner ist als 5000 mm2. Bei Einhaltung des erfindungsgemäßen Grenzwertes ist es ausgeschlossen, dass die an einen handelsüblichen Bodenstaubsauger angeschlossene Bodendüse sich auf textilen Bodenbelägen festsaugt. Die Bodendüse ist mit kleiner Schiebekraft bewegbar.The object is achieved according to the invention in that the suction mouth is wider in the area of the central section than in the narrow suction channels adjoining on both sides, and in that the inflow section on the bottom side of the suction mouth, which has a circumference of more than 530 mm, is smaller than 5000 mm 2 . If the limit value according to the invention is adhered to, it is impossible for the floor nozzle connected to a commercial floor vacuum cleaner to get stuck on textile floor coverings. The floor nozzle can be moved with little pushing force.
Im Rahmen der Erfindung liegt es, den Saugmund im Bereich des Mittelabschnittes wesentlich breiter auszubilden als in der beiderseits anschließenden Abschnitten. Überraschend wird die Staubaufnahme nicht nachteilig beeinflusst, wenn die an den Mittelabschnitt angrenzenden Zweige des Saugmundes sehr schmal, also mit einem sehr kleinen Abstand zwischen den Saugmundkanten, ausgebildet sind. Auch für die Länge des Saugkopfes (quer zur Saugrichtung) ergeben sich keine Einschränkungen. Zur Einhaltung des vorgegebenen Ein strömquerschnittes ist der Saugmund entsprechend schmaler auszubilden, wenn der Saugkopf eine große Länge besitzt.Within the scope of the invention, the suction mouth is in the range of the middle section to be significantly wider than in of the sections adjoining on both sides. Surprised dust pickup is not adversely affected if the branches of the suction mouth adjacent to the central section very narrow, so with a very small distance between the suction mouth edges are formed. Also for them The length of the suction head (transverse to the direction of suction) results no restrictions. To comply with the specified on the suction cross-section is correspondingly narrower if the suction head has a long length.
Gemäß einer bevorzugten Ausführung der Erfindung sind die in Saugrichtung vorderen und hinteren Saugmundkanten parallel angeordnet, wobei der Abstand zwischen den Saugmundkanten weniger als 16 mm, vorzugsweise weniger als 14 mm, beträgt. Bei sehr kleinen Abständen zwischen den Saugmundkanten kann es vorteilhaft sein, wenn die beiderseits des Mittelabschnittes anschließenden Saugkanäle des Saugmundes oberhalb der Saugmundkanten eine die Druckverteilung im Saugmund fördernde Querschnittserweiterung aufweisen. Die in den Saugmund einströmende Luft kann innerhalb des Saugmundes mit geringem Strömungsdruckverlust in den entsprechend breiten Saugkanälen abgeleitet werden.According to a preferred embodiment of the invention parallel in the suction direction of the front and rear suction mouth edges arranged, the distance between the suction mouth edges less than 16 mm, preferably less than 14 mm. With very small distances between the suction mouth edges it can be beneficial if both sides of the middle section connecting suction channels of the suction mouth above the suction mouth edges Pressure distribution in the suction mouth enhances cross-sectional expansion exhibit. The air flowing into the suction mouth can within the suction mouth with little flow pressure loss derived in the correspondingly wide suction channels become.
Gemäß einer bevorzugten Ausführung der Erfindung ist der Saugmund im Bereich seines Mittelabschnittes breiter ausgebildet und weist eine Vertiefung auf, welche die in Saugrichtung hinteren Saugmundkanten im Bereich der Ansaugöffnung unterbricht und rückseitig von einem Steg begrenzt ist, an den eine mit dem hinteren Fadenheber bestückte Aufnahmetasche anschließt. Die sich beidseits an den Mittelabschnitt anschließenden Abschnitte des Saugmundes sind entsprechend schmal ausgebildet, um den erfindungsgemäßen Grenzwert für den Einströmquerschnitt einzuhalten.According to a preferred embodiment of the invention Suction mouth wider in the area of its central section and has a recess which the in Suction direction rear suction mouth edges in the area of Intake opening interrupts and on the back by a web is limited to the one with the rear thread lifter equipped receiving pocket connects. The two sides the middle section adjoining sections of the suction mouth are accordingly narrow to the limit value according to the invention for the inflow cross section observed.
Im folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung erläutert. Es zeigen in schematischer Darstellung
- Fig. 1
- die Seitenansicht einer erfindungsgemäßen Bodendüse für Staubsauger,
- Fig. 2
- eine Unteransicht der in Fig. 1 dargestellten Bodendüse,
- Fig. 3
- einen Querschnitt durch den Saugmund in der Schnittebene A-A aus Fig. 2,
- Fig. 4
- eine weitere Ausgestaltung des Saugmundes, ebenfalls im Querschnitt in der Schnittebene A-A.
- Fig. 1
- the side view of a floor nozzle according to the invention for vacuum cleaners,
- Fig. 2
- 2 shows a bottom view of the floor nozzle shown in FIG. 1,
- Fig. 3
- 3 shows a cross section through the suction mouth in the sectional plane AA from FIG. 2,
- Fig. 4
- a further embodiment of the suction mouth, also in cross section in the section plane AA.
Zum grundsätzlichen Aufbau der in den Figuren dargestellten
Bodendüse gehören ein Luftführungskanal 1, an dessen
rückwärtigem Ende eine Laufrolle 2 angeschlossen ist, ein
Dreh/Kippgelenk 3, das aus einem schwenkbeweglich in den
Luftführungskanal eingesetzten Stutzen und einem in dem
Stutzen drehbeweglich gehaltenen Winkelrohr besteht, sowie
ein Saugkopf 4 mit einem bodenseitigen, von Fadenhebern 5
und Saugmundkanten 6 begrenzten Saugmund 7, der sich quer
zur Saugrichtung im wesentlichen über die gesamte Länge des
Saugkopfes 4 erstreckt. Der Saugkopf 4 ist durch ein
weiteres Kippgelenk 8 beweglich an den Luftführungskanal 1
angeschlossen und richtet sich unabhängig von der
Ausrichtung eines an das Dreh/Kippgelenk 3 angeschlossenen
Saugrohres stets planparallel zu der zu reinigenden
Bodenfläche aus.For the basic structure of those shown in the figures
Floor nozzle include an
Der Fig. 2 entnimmt man, dass der Saugmund 7 einen von den
Fadenhebern 5 begrenzten Mittelabschnitt 9 mit einer an den
Luftführungskanal anschließenden Ansaugöffnung 10 und
beiderseits des Mittelabschnittes 9 jeweils einen von den
Saugmundkanten 6 begrenzten schmalen Saugkanal 11 aufweist.
Im Bereich seines Mittelabschnittes 9 ist der Saugmund 7
breiter ausgebildet und weist z.B. eine Vertiefung 12 auf,
welche die in Saugrichtung hinteren Saugmundkanten im
Bereich der Ansaugöffnung unterbricht und rückseitig von
einem Steg 13 begrenzt ist, an den eine mit dem hinteren
Fadenheber 5 bestückte Aufnahmetasche anschließt. 2 that the
Erfindungsgemäß ist der bodenseitige Einströmquerschnitt
des einen Umfang von mehr als 530 mm aufweisenden
Saugmundes 7 kleiner als 5000 mm2 und vorzugsweise kleiner
als 4500 mm2. Die beiderseits des Mittelabschnittes 9
anschließenden kanalförmigen Abschnitte 11 des Saugmundes
7, im folgenden auch als Saugkanäle 11 bezeichnet, sind
sehr schmal ausgebildet, damit der Vorgabewert für den
Einströmquerschnitt eingehalten wird. Im Ausführungsbeispiel
sind die in Saugrichtung vorderen und hinteren
Saugmundkanten 6 parallel angeordnet, wobei der Abstand
zwischen den Saugmundkanten weniger als 16 mm beträgt. Der
kanalförmige Abschnitt 11 des Saugmundes 7 kann, wie in
Fig. 3 dargestellt, einen im wesentlichen rechteckförmigen
Querschnitt aufweisen.According to the invention, the inflow cross section at the bottom of the
Angestrebt wird eine gleichmäßige Druckverteilung im
Saugkanal. Bei der in Fig. 4 dargestellten Ausführung
weisen die beiderseits des Mittelabschnittes anschließenden
Saugkanäle 11 des Saugmundes 7 oberhalb der Saugmundkanten
6 eine die Druckverteilung im Saugmund fördernde Querschnittserweiterung
auf. Der Abstand zwischen den
Saugmundkanten 6 ist kleiner als die oberhalb der
Saugmundkanten gemessene Breite des die einströmende Luft
abführenden Kanals. Die Ausgestaltung ermöglicht eine sehr
gleichmäßige Druckverteilung entlang den Saugmundkanten 6.
Gleichzeitig gelingt es, die Fläche des Einströmquerschnittes
klein zu halten, was sich günstig auf die
Schiebekraft des Saugkopfes auswirkt. The aim is an even pressure distribution in the
Suction channel. In the embodiment shown in Fig. 4
have the adjoining on both sides of the central
Die in dem Ausführungsbeispiel dargestellten Bodendüsen
eignen sich zum Anschluss an handelsübliche Bodenstaubsauger,
die eine effektive Luftleistung von etwa 500 Watt
aufweisen. Die effektive Luftleistung L ( Watt) ist definiert
als
- Δp:
- Druckdifferenz zum Atmosphärendruck (N/m2)
- V.:
- Luftstrom
- Δ p :
- Pressure difference to atmospheric pressure (N / m 2 )
- V .:
- airflow
Druckdifferenz und Luftstrom sind jeweils in der Bodendüse gemessen.Pressure difference and air flow are in the floor nozzle measured.
Werden Bodenstaubsauger mit noch höherer effektiver Luftleistung eingesetzt, sollte der Einströmquerschnitt des Saugmundes reduziert werden. Der geeignete Wert ist anhand weniger Versuche festlegbar.Canister vacuum cleaners become even more effective Air performance used, the inflow cross section of the Suction mouth can be reduced. The appropriate value is based on fewer attempts can be determined.
Claims (5)
- A floor nozzle for vacuum cleaners, comprising
an air conveying duct (1), to the rear end of which a running roller (2) is attached,
a rotary/tilting joint (3) consisting of a nozzle which is inserted, so that it can move by swivelling, in the air conveying duct (1), and an angled tube which is held, so that it can move in rotation, in the nozzle,
a suction head (4) comprising a suction orifice (7) on the floor side which is delimited by thread lifters (5) and suction orifice edges (6), and which extends transversely to the direction of suction substantially over the entire length of the suction head (4),
wherein the suction head (4) is either attached movably to the air conveying duct (1) by a further tilting joint (8) or a suction orifice piece is disposed, so that it can move by tilting, in the suction head (4), and wherein the suction orifice (7) comprises a middle section (9) which is delimited by the thread lifters (5) and which has a suction aperture (10) which adjoins the air conveying duct, and comprises a suction duct (11) on both sides of the middle section (9), each of which suction ducts is delimited by the suction orifice edges (6), characterised in that the suction orifice (7) is of wider construction in the region of the middle section than it is in the adjoining narrow suction ducts (11) on both sides, and that the inflow cross-section on the floor side of the suction orifice (7), which has a periphery of more than 530 mm, is less than 5000 mm2. - A floor nozzle according to claim 1, characterised in that the front and rear suction orifice edges (6) in the direction of suction are disposed in parallel.
- A floor nozzle according to claim 2, characterised in that the distance between the suction orifice edges (6) is less than 16 mm, preferably less than 14 mm.
- A floor nozzle according to any one of claims 1 to 3, characterised in that the suction ducts (11) of the suction orifice (7), which adjoin the middle section on both sides, have a cross-sectional enlargement above the suction orifice edges (6) which promotes pressure distribution in the suction orifice (7).
- A floor nozzle according to any one of claims 1 to 4, characterised in that the suction orifice (7) is of wider construction in the region of its middle section (9) and comprises an indentation (12), which interrupts the rear suction orifice edges (6) in the direction of suction in the region of the suction aperture (10) and which is delimited at the back by a crosspiece (13) which adjoins a receiving pocket which is fitted with the rear thread lifter.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE50001442T DE50001442D1 (en) | 2000-04-11 | 2000-04-11 | Floor nozzle for vacuum cleaners |
| EP00107731A EP1145676B1 (en) | 2000-04-11 | 2000-04-11 | Suction cleaner nozzle |
| CNB001354930A CN1146349C (en) | 2000-04-11 | 2000-12-21 | Floor suction nozzle of duster |
| HU0100897A HU228131B1 (en) | 2000-04-11 | 2001-02-26 | Vacuum cleaner head |
| HK02101256A HK1039442A1 (en) | 2000-04-11 | 2002-02-21 | Floor nozzle for vacuum cleaners |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP00107731A EP1145676B1 (en) | 2000-04-11 | 2000-04-11 | Suction cleaner nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1145676A1 EP1145676A1 (en) | 2001-10-17 |
| EP1145676B1 true EP1145676B1 (en) | 2003-03-12 |
Family
ID=8168430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00107731A Expired - Lifetime EP1145676B1 (en) | 2000-04-11 | 2000-04-11 | Suction cleaner nozzle |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1145676B1 (en) |
| CN (1) | CN1146349C (en) |
| DE (1) | DE50001442D1 (en) |
| HK (1) | HK1039442A1 (en) |
| HU (1) | HU228131B1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0126494D0 (en) * | 2001-11-03 | 2002-01-02 | Dyson Ltd | A floor tool |
| EP1940276B1 (en) * | 2005-09-14 | 2011-01-05 | Koninklijke Philips Electronics N.V. | Suction nozzle and vacuum cleaner provided with such a suction nozzle |
| CN104013355A (en) * | 2014-05-09 | 2014-09-03 | 苏州艾利欧电器有限公司 | Multi-air-channel floor brush |
| 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 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2425225A1 (en) * | 1978-05-11 | 1979-12-07 | Wessel Hans | Vacuum cleaner suction nozzle sole piece - has single suction duct with narrowed ends and front and rear inclinations with bent down edges |
| KR900006624B1 (en) * | 1987-08-06 | 1990-09-15 | 마쯔시다덴기산교 가부시기가이샤 | Suction nozzle device for unse in vacuum cleaner |
| DE4243244C2 (en) * | 1992-12-19 | 1999-11-04 | Miele & Cie | Wheeled floor nozzle for vacuum cleaners |
| DE29812377U1 (en) * | 1998-07-11 | 1998-10-15 | Wessel-Werk GmbH, 51580 Reichshof | Floor sleeve for vacuum cleaners |
| DE19900968C1 (en) * | 1999-01-13 | 2000-01-13 | Wessel Werk Gmbh | Slide sole for vacuum cleaner nozzle |
-
2000
- 2000-04-11 EP EP00107731A patent/EP1145676B1/en not_active Expired - Lifetime
- 2000-04-11 DE DE50001442T patent/DE50001442D1/en not_active Expired - Lifetime
- 2000-12-21 CN CNB001354930A patent/CN1146349C/en not_active Expired - Fee Related
-
2001
- 2001-02-26 HU HU0100897A patent/HU228131B1/en not_active IP Right Cessation
-
2002
- 2002-02-21 HK HK02101256A patent/HK1039442A1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE50001442D1 (en) | 2003-04-17 |
| EP1145676A1 (en) | 2001-10-17 |
| HUP0100897A2 (en) | 2003-09-29 |
| HU0100897D0 (en) | 2001-05-28 |
| HK1039442A1 (en) | 2002-04-26 |
| CN1146349C (en) | 2004-04-21 |
| HU228131B1 (en) | 2012-12-28 |
| CN1317286A (en) | 2001-10-17 |
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