EP1520503A1 - Staubsaugerdüse - Google Patents

Staubsaugerdüse Download PDF

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Publication number
EP1520503A1
EP1520503A1 EP04356155A EP04356155A EP1520503A1 EP 1520503 A1 EP1520503 A1 EP 1520503A1 EP 04356155 A EP04356155 A EP 04356155A EP 04356155 A EP04356155 A EP 04356155A EP 1520503 A1 EP1520503 A1 EP 1520503A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
sole
suction
zone
opening
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.)
Withdrawn
Application number
EP04356155A
Other languages
English (en)
French (fr)
Inventor
Fabien David
Frédéric Tanguy
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
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SEB SA filed Critical SEB SA
Priority to DE200420021148 priority Critical patent/DE202004021148U1/de
Publication of EP1520503A1 publication Critical patent/EP1520503A1/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—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
    • 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
    • A47L9/0626—Rigidly anchored lips, e.g. nozzles adapted for picking up liquids

Definitions

  • the present invention relates to a dust suction nozzle, and more particularly the internal architecture of said nozzle.
  • Vacuum suckers are waste collection units staining the surface to be cleaned by suction created by the motor-fan unit of the vacuum cleaner.
  • the air entering the nozzle is usually channeled to a tubing connecting the nozzle to the vacuum, then directed to a dust tank where it is filtered.
  • Current vacuums generate flow rates of air resulting in air velocities in the nozzle relatively important, above 50 m / s in places. It follows phenomena of turbulence of the air in the nozzle which is at the origin of not insignificant noise compared to engine noise.
  • the present invention aims at reducing the ventilation noise generated by the passage of the air in the nozzle.
  • the present invention is achieved with the aid of an open vacuum nozzle to the surface to be cleaned by at least one suction channel arranged in the sole of the nozzle and connected, by a connection zone, to a pipe suction nozzle which bonds the nozzle to the vacuum cleaner, said channel and said connection being delimited by walls, characterized in that the radius of curvature of the walls of the connection area is greater than 8 mm on any the perimeter of the said zone.
  • connection zone is delimited by two pieces arranged one on the other.
  • Such a configuration helps to implement such radii of curvature, especially when the pieces are made by molding.
  • the nozzle has several suction channels connected to each other at the level of the connection area.
  • the side walls of the connection area have a radius of curvature greater than 10 mm.
  • the vacuum nozzle has at least one brush arranged in a housing and slidably mounted through a recess made in the sole, said brush being able to occupy two positions: an extended position where it is prominent relative to the sole of the nozzle and a retracted position where it is slightly set back from said sole.
  • the housing of the brush makes contact airtight with the sole
  • at least one air passage is provided between the recess of the sole and the upper part of the nozzle, said upper part having an air inlet opening so as to to create a flow of air entering the nozzle at this point and opening into the sole at the recess when the brush is in the retracted position.
  • the two positions of the brushes make it possible to obtain different contact depending on the soil to be treated and / or the actions envisaged. It is in interesting effect of being able to have at one point brushes allowing solicit the surface of the soil to be treated, for example the carpet, in order to extract the waste attached to the fibers.
  • the air flows entering the nozzle may be advantageous to modify the air flows entering the nozzle according to the position of the brushes. Indeed, when Brushes are out, the air is sucked essentially through the brushes. When they are retracted, the squeegee rests by the sole on the ground and an outside air inlet from the upper part of the nozzle is injected into the soil through the passage areas of the brushes arranged in the sole. This facilitates in particular the displacement of the nozzle on the ground and allows a more efficient collection of waste.
  • the upper part of the nozzle is constituted by a hood, an air inlet opening is then made at said hood.
  • An improvement consists in achieving a chicane at the level of the opening, in order to reduce the transmission of noise to the outside by this opening.
  • the present invention relates to a vacuum nozzle 1.
  • a vacuum nozzle 1 Such a nozzle has conduits 31, 30 and a tube 2 for binding to a body vacuum cleaner, not shown, including a motorcycle fan likely to create an air intake flow.
  • the conduit 31 opens at the sole 11 of the nozzle in contact with the floor to be cleaned, via a connection zone 32 leading to the suction channels.
  • These channels are usually configured according to the shape of the nozzle, to optimize the suction efficiency. In the example presented where the nozzle is of triangular shape, the channels in part extend along the two edges 5, 6 forming the tip sucker, as well as in said tip of the nozzle after joining in the central part of the nozzle, close to the connection zone 32.
  • the angular zone forming the tip of the nozzle has a front orifice 7 intended to provide suction in one direction substantially parallel to the surface to be cleaned.
  • the nozzle has retractable brushes actuated by a pedal 8 pivoting.
  • This pedal 8 is accessible at the hood 12 of the nozzle.
  • the latter in this example realization, essentially presents only aesthetic functions and of Environmental Protection.
  • the suction channels are closed, on the one hand by a structure made partly during the manufacture by molding of the sole, such the parts of the suction channels extending along the edges and opening through the opening 7, but also by an upper part 33 of the connection 32.
  • connection zone 32 is obtained by the assembly of the upper piece 33 on the sole, using three screws arranged at the 16.
  • Other equivalent means, such as clips, may be used to return the piece 33 on the sole.
  • This upper piece 33 comprises a viewing area 14 of the waste on the surface being cleaned, made by making transparent a significant part of said piece triangular reported on the sole.
  • the hood 12 then has a simple opening opposite the zone of visualization 14.
  • Figure 2 shows the nozzle seen from below.
  • the sole 11 of nozzle has several suction channels: a channel 19 substantially parallel to the edge 6 of the nozzle, a channel 20 substantially parallel to the edge 5 of the nozzle. These channels meet in the central region 21 of the sucker, close of the connection zone 32.
  • the channels 19 and 20 have openings frontal, that is to say in the vertical edges of the sole, respectively 36 and 35, allowing lateral suction substantially parallel to the surface to clean.
  • the triangular shape is completed, at the rear of the nozzle, by a part full 40 having two locations 42 means promoting the displacement of the nozzle, which may be either PTFE-type pads or wheels.
  • the nozzle further comprises a blade 23 extending in the region 21, the edge 5 of the nozzle at the edge 6, thus defining a channel before 18 and a rear channel 22, the front channel 18 opening at the tip of the nozzle by the front opening 7.
  • This blade 23 has a zone 24 where is disposed a pull-out fabric as it is known per se.
  • This blade 23 connects the edge 5 to the edge 6 as a bridge, leaving a space between the face opposite the zone 24 and the viewing zone 14. This blade is preferably parallel to the rear edge 9 of the nozzle.
  • a second zone 124 carrying a pull-out fabric may be provided on a border of the channel 22, symmetrically to the zone 24 carrying the pull-son.
  • the channels 19 and 20 each have scraping blades 46 and 45 extending respectively from the edge 6 and the edge 5 towards the other edge in the suction channel.
  • these blades are fixed and issuing from the bottom plate of the nozzle while extending substantially parallel to the rear edge 9 for a distance close to half of the width of the canal.
  • these blades are slightly prominent by compared to the bottom plate of the nozzle.
  • the nozzle also comprises brushes 55, 56, 57, said brushes being retractable through the sole using a mechanism not described in the present application.
  • the sole features and openings 500, 600 for the respective passage of the brushes 55, 56.
  • the brush 55 is disposed between the suction channel 20 and the edge 5, while the brush 56 is disposed between the suction channel 19 and the edge 6.
  • the brushes are arranged in housings, such as housing 65 of the brush 55, visible in FIG.
  • the walls delimiting the connection zone 32 are without abrupt failure of slope, so that the air is guided along the walls without significant detachment that would create phenomena of turbulence.
  • the radii of curvature of the walls are thus greater than 8 mm, which avoids abrupt links between the different elements.
  • Channels 18, 19 and 20 meet in the near central 21 region of the connection zone 32 where the connection is made, on the one hand by a form 50 advantageously rounded said area, and secondly using the portion 330 of the upper piece 33 substantially in line with said shape 50.
  • connection zone 32 we can speak of the connection zone 32 as a "mouth”, as it really corresponds to the capture of the air flows coming from suction channels.
  • connection zone 32 has been particularly studied to limit the phenomena of turbulence. Indeed, as shown in Figures 4 to 7, the vertical section of this area has an oval shape, as shown in Figure 6, the substantially vertical walls being connected to substantially horizontal walls by curved areas. Usefully, this oval section (s) passing through the connection zone is greater than 700 mm 2 and advantageously equal to 740 mm 2 .
  • a sectional view along section BB shown in FIG. 5 shows two symmetrical walls 51, 52 whose radii of curvature r 1 are both greater than 10 mm. According to the proposed example, the radius of curvature is 12 mm. These two walls correspond to the connection between the connection zone 32 and the suction channels 20, 19 respectively.
  • the front face of the form 50 has a rounded shape. This front face connects the anterior edge of the channel 19 to the front edge of the channel 20.
  • the front face of the shape 50 has a radius r 3 of the the side of each channel 19, 20, this curvature can be continuous channel 19 to the channel 20, or the form 50 may have a straight portion joining the two curved portions of radius r 3 .
  • This radius is wide and has a value around 30 mm.
  • the sectional view along the section AA shown in FIG. 7 shows the front part of the connection zone 32 sensing the central flow of the nozzle, coming from the region 21.
  • the zone connection has a wall 53 also having a radius r 2 of curvature greater than 8 mm. According to the proposed embodiment, the radius of curvature is 9 mm.
  • the wall will always have a radius of curvature greater than 8 mm.
  • the upper part 330 of the piece 33 has a shape convex which is established in the continuity of shape of the lower part of the zone connection.
  • the housing 65 of the brush 55 abuts against the contour defining the brush passage opening, making a sufficiently tight contact to prevent significant air entry at this level.
  • a similar configuration is achieved at brush level 56 as well as at the level of the back brush 57.
  • a space is provided at the level of the brush passages allowing therefore an aeraulic connection between the inside of the nozzle and the space under the sole.
  • a ventilation link is also provided between the inside of the nozzle and the outside at the hood 12 of the nozzle.
  • an air inlet is obtained by providing a space 130 sufficient at the opening 13 of the hood through which ducts 30, 31 are engaged.
  • a baffle is arranged immediately after this opening, in order to reduce the transmission noise outside this opening.
  • the air enters the suction channels where it is guided along walls in as laminar a movement as possible. Going up along the side suction channels 19, 20, it then enters in the connection zone 32 essentially guided by the walls 51, 52. Similarly, the air entering through the suction duct 18 is essentially guided by the upper wall closing the channel and by the wall 53 of the zone of connection.
  • this stream of air coming in the longitudinal axis of the nozzle contributes significantly to the maintenance of laminar flow coming from channels 19 and 20 performing a tight return curve along the walls 51 and 52, in particular by maintaining a symmetry of flow.
  • an auxiliary air inlet and Volunteer is created under the soleplate by a flow of air from the opening 130 of the hood. Such a circulation of air does not generate significantly more noise, through the baffle.
  • auxiliary air inlet can be made at the housing opening of the pedal 8, or at the level of the viewing aperture.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
EP04356155A 2003-10-01 2004-09-13 Staubsaugerdüse Withdrawn EP1520503A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE200420021148 DE202004021148U1 (de) 2003-10-01 2004-09-13 Staubsauger-Saugvorrichtung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0311478 2003-10-01
FR0311478A FR2860413B1 (fr) 2003-10-01 2003-10-01 Suceur d'aspirateur

Publications (1)

Publication Number Publication Date
EP1520503A1 true EP1520503A1 (de) 2005-04-06

Family

ID=34307304

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04356155A Withdrawn EP1520503A1 (de) 2003-10-01 2004-09-13 Staubsaugerdüse

Country Status (2)

Country Link
EP (1) EP1520503A1 (de)
FR (1) FR2860413B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5985965A (en) * 1993-12-16 1999-11-16 Clariant Gmbh Flame-resistant polyurethanes
EP1925247A1 (de) * 2006-11-23 2008-05-28 Seb SA Vacuum cleaner nozzle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2958143B1 (fr) 2010-04-06 2012-06-08 Seb Sa Suceur d'aspirateur

Citations (4)

* 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
BE844626A (nl) * 1976-07-28 1976-11-16 Patin pour buse d'aspirateur de poussiere
JPH11113814A (ja) * 1997-10-15 1999-04-27 Matsushita Electric Ind Co Ltd 電気掃除機用吸込具及びそれを用いた電気掃除機
EP0983742A2 (de) * 1998-09-02 2000-03-08 Vorwerk & Co. Interholding GmbH Staubsauger

Patent Citations (4)

* 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
BE844626A (nl) * 1976-07-28 1976-11-16 Patin pour buse d'aspirateur de poussiere
JPH11113814A (ja) * 1997-10-15 1999-04-27 Matsushita Electric Ind Co Ltd 電気掃除機用吸込具及びそれを用いた電気掃除機
EP0983742A2 (de) * 1998-09-02 2000-03-08 Vorwerk & Co. Interholding GmbH Staubsauger

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 09 30 July 1999 (1999-07-30) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5985965A (en) * 1993-12-16 1999-11-16 Clariant Gmbh Flame-resistant polyurethanes
EP1925247A1 (de) * 2006-11-23 2008-05-28 Seb SA Vacuum cleaner nozzle
FR2908972A1 (fr) * 2006-11-23 2008-05-30 Seb Sa Suceur d'aspirateur.
EP1925247B1 (de) 2006-11-23 2015-07-08 Seb S.A. Vacuum cleaner nozzle
EP1925247B2 (de) † 2006-11-23 2021-07-21 Seb S.A. Vacuum cleaner nozzle

Also Published As

Publication number Publication date
FR2860413B1 (fr) 2005-12-09
FR2860413A1 (fr) 2005-04-08

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