EP1925247B2 - Vacuum cleaner nozzle - Google Patents

Vacuum cleaner nozzle Download PDF

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Publication number
EP1925247B2
EP1925247B2 EP07356168.0A EP07356168A EP1925247B2 EP 1925247 B2 EP1925247 B2 EP 1925247B2 EP 07356168 A EP07356168 A EP 07356168A EP 1925247 B2 EP1925247 B2 EP 1925247B2
Authority
EP
European Patent Office
Prior art keywords
nozzle
vacuum cleaner
connection area
sole
suction
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.)
Active
Application number
EP07356168.0A
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English (en)
French (fr)
Other versions
EP1925247A1 (de
EP1925247B1 (de
Inventor
Eric Marchal
Fabien David
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.)
SEB SA
Original Assignee
SEB SA
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Filing date
Publication date
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Application filed by SEB SA filed Critical SEB SA
Publication of EP1925247A1 publication Critical patent/EP1925247A1/de
Publication of EP1925247B1 publication Critical patent/EP1925247B1/de
Application granted granted Critical
Publication of EP1925247B2 publication Critical patent/EP1925247B2/de
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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
    • 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
    • A47L9/0081—Means for exhaust-air diffusion; Means for sound or vibration damping
    • 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
    • A47L9/24—Hoses or pipes; Hose or pipe couplings
    • A47L9/242—Hose or pipe couplings

Definitions

  • the present invention relates to a vacuum cleaner nozzle, and more particularly the internal architecture of said nozzle.
  • the present invention aims to reduce the aeraulic noise generated by the passage of air through the nozzle.
  • a suction nozzle having a connection zone of at least one suction channel to a suction pipe connected to the frame of the vacuum cleaner, of which the radius of curvature of the walls of the connection zone over the entire perimeter of said zone has been studied to make the flow more fluid.
  • the figure 1 has such a nozzle 100 in a cross section approximately at mid-height.
  • the nozzle of triangular shape, comprises two lateral channels 102 open at one of their end and connected, by their other end, to a large connection zone 104, itself connected to a duct (not shown).
  • the radii of curvature of the connection zone, and in particular the radii 106 of the side walls are greater than 8 mm.
  • EP 1 520 503 A1 discloses a vacuum cleaner nozzle according to the preamble of claim 1.
  • the present invention is achieved with the aid of a vacuum cleaner nozzle open towards the surface to be cleaned by at least one suction channel formed in the sole of the nozzle and extending substantially horizontally, said channel being connected by a connection area, to a suction tube connected to the vacuum cleaner, said connection area being delimited by walls, characterized, among other things, in that the side walls of said connection area have a radius of curvature greater than 20 mm, and in that the tube connected to the connection area is a flexible pipe.
  • a vacuum cleaner nozzle according to the present invention is defined by claim 1.
  • the suction channels extend essentially horizontally, the sucked air then enters the suction tube through the side walls of the connection zone connecting a suction channel to the suction tube.
  • this force is reinforced by the presence of the flexible tube at the level of the articulation, which makes it possible to maintain fluid continuity whatever the orientation of the nozzle.
  • a pipe makes it possible to obtain flexibility of torsion in all directions while maintaining sufficient mechanical resistance to negative pressure.
  • This torsion takes on the appearance of an arc of a circle of relatively large radius, which is therefore favorable to the maneuverability of the suction head as well as to silent operation.
  • the suction tube connected to the connection zone, has a circular section, the inside diameter of which is substantially that of the various successive ducts leading to the vacuum cleaner. Furthermore, by providing a connecting tube whose diameter corresponds to the diameter of the various ducts leading to the vacuum cleaner, the acoustic phenomena linked to changes in section are avoided.
  • connection zone is delimited by two parts arranged one on top of the other, facilitating the implementation of the invention.
  • the lower part preferably comes from the sole of the nozzle.
  • the upper part is attached by a screw system or by clipping.
  • the upper part has a dome shape, the different curvatures of the part preventing the air knives from coming apart as they pass through the connection zone.
  • the radii of curvature of the other walls of the connection zone are designed to limit detachment of the air knives, while avoiding increasing the size and reducing the efficiency of the nozzle.
  • these radii of curvature are greater than 10 mm.
  • the flexible pipe is guided by two rigid lateral arms allowing better comfort of use.
  • the nozzle comprises two suction channels connected to one another at the level of the connection zone, making it possible to arrange said connection zone at the central level of the nozzle.
  • the nozzle is preferably triangular in shape, the two channels extending along two of the sides of the triangle, an opening being made in the tip of the nozzle formed. by the meeting of the two channels, said opening being made in the sole of the nozzle.
  • the triangular shape makes it possible to use a longer nozzle length than for a rectangular nozzle, in order to achieve the present invention, the large radius of curvature of the side walls of the connection zone tending to move the mouth backwards. of the connection tubing.
  • the opening in the tip of the nozzle is arranged in the axis of the suction tube linked to the connection zone, the architecture of the sole of the nozzle forming a direct connection between said opening and said tube.
  • direct connection is meant a connection in a straight line, so that some waste sucked through the opening in the tip of the nozzle enters directly into the tube linked to the connection area, without touching, or touching very little the walls of the nozzle. nozzle. Part of the air also follows this direct path between said opening and the rear duct.
  • the base of the triangular nozzle is set back relative to the lower level of the front part of the sole defining in particular the suction channels.
  • This withdrawal between 4 and 7 mm, makes it possible to facilitate the movement of the nozzle and to limit the regeneration of noise under the nozzle.
  • the present invention relates to a vacuum cleaner nozzle 1.
  • the nozzle is triangular in shape.
  • the present invention is not limited to this triangular shape, and can be implemented on a rectangular nozzle.
  • the nozzle 1 comprises a sole 2 on which is arranged a cover 4.
  • Brushes 6 can be actuated in a vertical movement by a pedal 8 to allow the nozzle to be in contact with the ground by means of said brushes 6, such as that he is known in the field.
  • the nozzle also has wheels (not shown) movable vertically in openings 10 made in the solid rear part 12 of the sole, as visible. figure 4 .
  • the triangular nozzle 1 has suction channels 13, 14 arranged along two of its sides.
  • the tip of the nozzle formed by the meeting of these two sides, has a front opening 16, in connection with the channels 13, 14, allowing suction in a direction substantially parallel to the surface to be cleaned.
  • Strips of threads 18, 20 are arranged on either side of the suction channels, in the region of the tip of the nozzle.
  • the suction channels 13, 14 open at the level of the sole 2 of the nozzle in contact with the floor to be cleaned and are connected, in an a Vogellic manner, to a connecting tube 22, by means of a connection zone 24
  • the connecting tube 22 is connected, by a suction pipe, such as the pipe 25, to a vacuum cleaner body, not shown, the vacuum cleaner having in particular a motor-fan capable of creating a suction flow of air.
  • the tube 22 is a flexible tube composed of a core in the form of a metal spring wire coated in a plastic covering.
  • the deformation of such a tube replaces the ball joint type often encountered, the deformation taking place in an arc of a circle, which is favorable when low noise generation is desired.
  • two lateral arms 23 connect the end of the tube 22, located outside the nozzle, to the rear base of the nozzle, said arms being articulated at this level.
  • the figure 5 shows an exploded perspective view of the nozzle.
  • the suction channels 13, 14 are closed, on the one hand by an internal structure produced in part during the manufacture by molding of the sole, such as parts 130, 140, and on the other hand by an upper part 30 in the form of a fin which is fixed to the sole 2 by screwing in suitable locations 32.
  • Other equivalent means, such as clips, can be used to attach the part 30 to the sole 2.
  • the part 30 has a front part 42, as well as lateral extensions 33, 34 which cover part of the channels 13, 14.
  • the upper part 30 defines, with an underlying part 40 coming from the sole 2, the connection zone 24 of the suction channels to the connecting tube 22.
  • the part 30 and the part 40 each have a connection portion for connection to the tube 22.
  • the latter preferably being of circular section
  • the part 30 and the part 40 have, respectively, at the rear, a curvature 39, 49 in a semicircle such that the assembly of the part 30 on the sole 2 produces, in the rear part, a portion of the tube slightly smaller than the internal diameter of the tube 22, in order to easily connect said tube to the zone thus formed.
  • Maintaining the tube on the connection zone 24 can be achieved by any known means, such as, for example, a circlip.
  • side walls 240, 242 of the connection zone 24 have a large radius of curvature, greater than 20 mm, in order to limit the aeraulic turbulence during operation.
  • connection zone is formed by the union of the part 30 and of the part 40.
  • These two subassemblies therefore have portions of side walls, respectively 36, 38 for the upper part 30, and 46, 48 for part 40, portions presented to figures 7 , 9 and 12 .
  • the realization of the part 30, independent, and attached to the sole 2, in order to create the connection zone, facilitates the creation of large radii of curvature, in particular at the level of the side walls of said zone.
  • the figure 8 shows another embodiment of the invention.
  • the upper part 30 has a dome shape 50, that is to say that its upper wall has a lateral curvature 502, as shown in the figure. figure 8 , as well as a longitudinal curvature 504, as illustrated figures 10 and 11 especially.
  • This specific shape allows optimum guidance of the air and the waste, as will be explained later.
  • the lateral extensions 33, 34 closing the suction channels have also been worked on in terms of their shape in order to present curvatures, such as a curvature 330, which promotes the fluidity of the flow and ensures the seal between the upper part 30 and the sole 2.
  • the figures 12 to 15 present the sole 2 of the nozzle, associated with the connecting tube 22.
  • this sole has a central part 40 forming, with the upper part 30, the connection zone 24.
  • This part 40 delimits, by its front zone 200 , the front edges of the suction channels 13, 14.
  • the zone 200 is characterized in particular by its pointed shape, by having a front nose 210 at the meeting of the two channels.
  • the front zone 200 has specific curvatures that are as gentle as possible in the direction of the suction channels, such as a curvature 212 at the level of the longitudinal axis of the nozzle, in order to to convey air and waste with minimum turbulence.
  • the angle of attack ⁇ at the nose, for the air entering through the tip of the nozzle is advantageously less than 45 °, and preferably of the order of 35 °.
  • the different curvatures of the front zone 200 are presented in figures 19 to 21 where a part of the sole of the nozzle has been cut vertically to better visualize the zone 200.
  • the various figures show that the entire zone 200 is curved, without a rectilinear portion, from the front edge of the channels 13, 14, up to the mouth of the tube 22.
  • the oblique suction directions F and G also follow a curve along the portion of the corresponding zone 200.
  • the sole 2 defines the suction opening 16 by presenting in particular an upper wall 202 curved along a radius r close to 10 mm, suitable for allowing air to enter the nozzle without noise.
  • the opening 16 in the tip of the nozzle is in direct connection with the tube 22.
  • direct connection it is necessary to understand a connection in a straight line, such as the line xx 'presented to the users. figures 13 and 16 .
  • the waste and the air entering through the opening 16 in the tip of the nozzle can thus reach the tube 22 without hitting the wall, thanks to the tapered shape of the zone 200 and to the curvature 212 of said zone.
  • the full rear part 12 of the sole 2 of the nozzle which in a way defines the base of the nozzle, is not at the same level as the front part of said sole defining in particular the suction channels.
  • the shrinkage h of the solid part is of the order of 5 mm according to the example proposed and makes it possible to limit the effort of displacement of the nozzle by the user, by reducing the friction of the solid area on the ground, in particular on carpet or rug type floors. This removal also makes it possible to reduce the noise level regenerated under the solid rear part 12.
  • connection zone 24 via the side walls 240, 242.
  • the flow remains fairly fluid and laminar, the air thus having a strong tendency. to stay in contact with these walls.
  • curvatures 502, 504 in the upper wall of the connecting piece 24 greatly avoid the turbulence phenomena that may result from the meeting of the flows coming from each channel.
  • This aspect is all the more important since part of the flow entering the tube 22 also comes from the opening 16 made in the tip of the nozzle.
  • the shape of the dome 50 of the connection zone as well as the volume of this dome also contributes to fluidifying the flows.
  • the air and the waste entering the nozzle through this opening 16 have a high speed, both due to the small size of this opening, the passage section of which is of the order of 0.5 cm 2. , that by the direct connection with the tube 22, as previously explained.
  • This high speed makes it possible to direct the flows coming from the channels 13, 14 while limiting the shocks between these two flows and the resulting noise.
  • connection zone In addition, the air and the waste, through the connection zone thus formed, enter directly into the connecting tube 22, a tube of substantially the same diameter as the tubing 25 leading the air and the waste to the vacuum cleaner. As the absence of section breakage may result from connections between ducts of different diameters, no turbulence and therefore no noise are generated.
  • the nozzle being “articulated” by the flexibility of the duct, a flexibility which results in curvatures of the tube 22 in an arc of a circle, the flow of air and of the waste in the duct 22 takes place without abrupt variation of direction or section.
  • a nozzle which is already efficient in terms of noise reduction and as described in the application FR 2860413 , it can be estimated that a nozzle according to the present invention allows a gain on noise greater than 5 dBa, depending on the engine speed.
  • the present invention in several of its aspects, can quite well be applied to a nozzle of rectangular shape.
  • the curvature of the side walls of the connection zone, as well as the angle formed by the zone defining the front part of the channels can be implemented in a rectangular nozzle without considerably increasing the size, and in particular the length, of the nozzle. .

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

Claims (10)

  1. Düse (1) für Staubsauger, der zur reinigenden Fläche durch zumindest einen Saugkanal (13, 14) offen ist, der in der Sohle (2) der Düse (1) ausgebildet ist und im Wesentlichen horizontal verläuft, wobei der Kanal (13, 14) durch einen Anschlussbereich (24) mit einem mit dem Staubsauger verbundenen Saugrohr (22) verbunden ist, wobei der Anschlussbereich (24) durch Wände (50, 240, 242) begrenzt ist, dadurch gekennzeichnet, dass die seitlichen Wände (240, 242) des Anschlussbereichs (24) einen Krümmungsradius von mehr als 20 mm aufweisen, und dass das mit dem Anschlussbereich (24) verbundene Rohr (22) ein Schlauch ist, der aus einem Metallfederdraht besteht, der mit einer Kunststoffummantelung versehen ist, die das Gelenk der Düse bildet und im Betrieb einen Kreisbogen bilden kann, dass der Anschlussbereich (24) durch zwei Teile (30, 40) begrenzt wird, die übereinander angeordnet sind, und dass das obere Teil (30) eine Kuppelform aufweist.
  2. Düse (1) für Staubsauger nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass das mit dem Anschlussbereich (24) verbundene Saugrohr (22) einen kreisförmigen Querschnitt aufweist, dessen Innendurchmesser im Wesentlichem demjenigen der verschiedenen aufeinander folgenden Kanäle entspricht, die zum Staubsauger führen.
  3. Düse (1) für Staubsauger nach Anspruch 1, dadurch gekennzeichnet, dass das untere Teil (40) aus der Sohle (2) der Düse (1) hervorgeht.
  4. Düse (1) für Staubsauger nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Krümmungsradien der anderen Wände (50) des Anschlussbereichs (24) mehr als 10 mm betragen.
  5. Düse (1) für Staubsauger nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass das Saugrohr (22) durch zwei seitliche starre Arme (23) geführt wird.
  6. Düse (1) für Staubsauger nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie zwei Saugkanäle (13, 14) umfasst, die auf Höhe des Anschlussbereichs (24) miteinander verbunden sind.
  7. Düse (1) für Staubsauger nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass sie dreieckig ist, wobei die beiden Kanäle (13, 14) entlang zwei Seiten des Dreiecks verlaufen, und dass in der Spitze der Düse (1) eine Öffnung (16) vorgesehen ist, die durch das Zusammentreffen der beiden Kanäle (13, 14) gebildet wird, wobei die Öffnung (16) in der Sohle (2) der Düse (1) vorgesehen ist.
  8. Düse (1) für Staubsauger nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die Öffnung (16) in der Spitze der Düse (1) in der Achse des Saugrohrs (22) angeordnet ist, das mit dem Anschlussbereich (24) verbunden ist, und dass der Aufbau der Sohle (2) der Düse (1) eine direkte Verbindung zwischen der Öffnung (16) und dem Rohr (22) herstellt.
  9. Düse (1) für Staubsauger nach einem der Ansprüche 7 oder 8, dadurch gekennzeichnet, dass die Grundfläche (12) der dreieckigen Düse (1) in Bezug auf die untere Ebene des vorderen Abschnitts der Sohle (2), der insbesondere die Saugkanäle (13, 14) definiert, zurückgesetzt ist.
  10. Düse (1) für Staubsauger nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass der Rücksprung zwischen 4 und 7 mm beträgt.
EP07356168.0A 2006-11-23 2007-11-19 Vacuum cleaner nozzle Active EP1925247B2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0610265A FR2908972B1 (fr) 2006-11-23 2006-11-23 Suceur d'aspirateur.

Publications (3)

Publication Number Publication Date
EP1925247A1 EP1925247A1 (de) 2008-05-28
EP1925247B1 EP1925247B1 (de) 2015-07-08
EP1925247B2 true EP1925247B2 (de) 2021-07-21

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ID=38180089

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07356168.0A Active EP1925247B2 (de) 2006-11-23 2007-11-19 Vacuum cleaner nozzle

Country Status (2)

Country Link
EP (1) EP1925247B2 (de)
FR (1) FR2908972B1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2967883B1 (fr) * 2010-11-26 2013-08-23 Seb Sa Suceur d'aspirateur
FR3003744B1 (fr) * 2013-03-26 2015-09-04 Seb Sa Suceur d'aspirateur comportant une source lumineuse
EP4699505A2 (de) 2019-06-26 2026-02-25 Milwaukee Electric Tool Corporation Vakuumwerkzeuge

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2235226A (en) † 1939-07-11 1941-03-18 Electrolux Corp Suction nozzle
US5189757A (en) † 1991-10-31 1993-03-02 Williams William H Head assembly for a vacuum cleaning apparatus
RU1U1 (ru) † 1993-07-01 1994-06-25 Напетваридзе С.О. Устройство для облесения крутых горных склонов
DE19624360A1 (de) † 1996-06-19 1998-01-02 Wessel Werk Gmbh Saugkopf an einem Staubsauger
GB2346076A (en) † 1999-01-28 2000-08-02 Numatic Int Ltd Vacuum cleaner where the swivelling connection between the work head and the body portion comprises a detachable conduit
US6510584B2 (en) † 2001-01-12 2003-01-28 Royal Appliance Mfg. Co. Flow cut-off and brushroll shut-off mechanism for vacuum cleaner
EP1520503A1 (de) † 2003-10-01 2005-04-06 Seb S.A. Staubsaugerdüse
WO2005074778A1 (en) † 2004-02-06 2005-08-18 Aktiebolaget Electrolux Vacuum cleaner nozzle
FR2871046A1 (fr) † 2004-06-08 2005-12-09 Seb Sa Suceur d'aspirateur

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191327539A (en) 1913-11-29 1914-08-07 Walter Greenwood Doty Vacuum Sweepers.
DE19800388C2 (de) * 1998-01-08 1999-12-02 Wessel Werk Gmbh Saugkopf für Bodenstaubsauger
FR2773457B1 (fr) * 1998-01-14 2000-03-03 Seb Sa Circuit d'aspiration d'un suceur d'aspirateur
FR2789880B1 (fr) * 1999-02-19 2001-05-04 Seb Sa Piece complementaire pour plaque de base d'un suceur d'aspirateur
US6421875B1 (en) * 2000-06-12 2002-07-23 Pro-Team, Inc. Vortex floor tool
US20050022340A1 (en) * 2003-08-01 2005-02-03 Hafling Danielle M. Nozzle assembly with high efficiency agitator cavity
KR100592095B1 (ko) * 2004-11-03 2006-06-22 삼성광주전자 주식회사 진공청소기의 흡입구조립체

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2235226A (en) † 1939-07-11 1941-03-18 Electrolux Corp Suction nozzle
US5189757A (en) † 1991-10-31 1993-03-02 Williams William H Head assembly for a vacuum cleaning apparatus
RU1U1 (ru) † 1993-07-01 1994-06-25 Напетваридзе С.О. Устройство для облесения крутых горных склонов
DE19624360A1 (de) † 1996-06-19 1998-01-02 Wessel Werk Gmbh Saugkopf an einem Staubsauger
GB2346076A (en) † 1999-01-28 2000-08-02 Numatic Int Ltd Vacuum cleaner where the swivelling connection between the work head and the body portion comprises a detachable conduit
US6510584B2 (en) † 2001-01-12 2003-01-28 Royal Appliance Mfg. Co. Flow cut-off and brushroll shut-off mechanism for vacuum cleaner
EP1520503A1 (de) † 2003-10-01 2005-04-06 Seb S.A. Staubsaugerdüse
FR2860413A1 (fr) † 2003-10-01 2005-04-08 Seb Sa Suceur d'aspirateur
WO2005074778A1 (en) † 2004-02-06 2005-08-18 Aktiebolaget Electrolux Vacuum cleaner nozzle
FR2871046A1 (fr) † 2004-06-08 2005-12-09 Seb Sa Suceur d'aspirateur

Also Published As

Publication number Publication date
EP1925247A1 (de) 2008-05-28
EP1925247B1 (de) 2015-07-08
FR2908972A1 (fr) 2008-05-30
FR2908972B1 (fr) 2010-11-05

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