EP3900595B1 - Cleaning unit for suction head - Google Patents

Cleaning unit for suction head Download PDF

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Publication number
EP3900595B1
EP3900595B1 EP21169521.8A EP21169521A EP3900595B1 EP 3900595 B1 EP3900595 B1 EP 3900595B1 EP 21169521 A EP21169521 A EP 21169521A EP 3900595 B1 EP3900595 B1 EP 3900595B1
Authority
EP
European Patent Office
Prior art keywords
pivot
cleaning unit
support
brush
rotary
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
EP21169521.8A
Other languages
German (de)
French (fr)
Other versions
EP3900595A1 (en
Inventor
Antoine MARTI
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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Publication of EP3900595A1 publication Critical patent/EP3900595A1/en
Application granted granted Critical
Publication of EP3900595B1 publication Critical patent/EP3900595B1/en
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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
    • A47L9/04—Nozzles with driven brushes or agitators
    • A47L9/0405—Driving means for the brushes or agitators
    • A47L9/0411—Driving means for the brushes or agitators driven by electric motor
    • 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
    • A47L9/04—Nozzles with driven brushes or agitators
    • 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
    • A47L9/04—Nozzles with driven brushes or agitators
    • A47L9/0455—Bearing means therefor
    • 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
    • A47L9/04—Nozzles with driven brushes or agitators
    • A47L9/0461—Dust-loosening tools, e.g. agitators, brushes
    • A47L9/0466—Rotating tools
    • A47L9/0477—Rolls

Definitions

  • the present invention relates to the field of vacuum cleaners equipped with a suction head making it possible to suck up dust and small-particle waste present on a surface to be cleaned.
  • Vacuum cleaners equipped with a suction head are well known on the market, these making it possible to clean surfaces by suction for the evacuation of dust and waste of small particle size resting thereon.
  • the surface to be vacuumed can for example be tiles, parquet, laminate, carpet or carpet.
  • a suction head comprises, in known manner, a main body comprising a sole provided with a lower face and with a suction orifice opening out into the lower face of the sole.
  • the underside of the soleplate is intended to be positioned adjacent to the surface to be vacuumed during use of the suction head.
  • a first end portion of the rotating brush is connected to the main body of the suction head via a first pivot connection so as to allow rotation of the rotating brush relative to the main body around a axis of rotation, and a second end portion of the rotating brush is connected to the closure cap via a second pivot connection so as to allow rotation of the rotary brush relative to the closure cap about a pivot axis.
  • Such a configuration can generate vibrations and generate noises which are detrimental to the comfort of use of such a suction head.
  • the vibrations can, for example, be generated by a misalignment between the axis of rotation and the central axis of the brush.
  • a cleaning unit according to the preamble of claim 1 is already known for example from the document US-A-5465451 .
  • the present invention aims to remedy all or part of these drawbacks.
  • the technical problem underlying the invention consists in particular in providing a cleaning unit for a suction head which provides increased comfort to a user.
  • Such a configuration of the cleaning unit according to the present invention thus ensures increased comfort for a user.
  • the cleaning unit may further have one or more of the following features, taken alone or in combination.
  • the support element is arranged between the brush support and the pivot.
  • the support element is arranged between the pivot and the rotary support.
  • the brush holder is configured to be removably attached to the main body of the suction head.
  • the brush holder is a closure cap which is configured to at least partially close a passage opening provided on the main body of the suction head and through which the rotating brush is able to be introduced into the housing of the suction head. receiving and removed from the receiving housing.
  • the closure cap comprises a cap body configured to be fixed to the main body of the suction head.
  • the rotating brush is then mounted so as to be able to rotate relative to the cap body.
  • the rotatable support is connected to the cap body via the pivot so as to allow rotation of the rotatable support relative to the cap body around the pivot axis.
  • the support element being arranged between the plug body and the rotary support, preferably between the plug body and the pivot.
  • the rotating brush is configured to be removably mounted in the receiving housing in a mounting direction which extends transversely, and preferably perpendicularly, to a direction of movement of the head suction.
  • the pivot axis is substantially coincident with a central axis of the rotating brush.
  • the rotating brush comprises a brush body which has a generally tubular shape.
  • the brush body is cylindrical with a circular section.
  • the rotary support is arranged at least partly in the brush body.
  • the support element comprises an axial abutment surface against which the pivot bears.
  • the support element comprises a shoulder defining the axial abutment surface.
  • the shoulder is annular.
  • the pivot is housed in the support element. This arrangement allows the cleaning unit to be more compact.
  • the shoulder when the pivot is housed in the support element, the shoulder is provided on an internal surface of the support element.
  • the shoulder can be provided on an external surface of the support element.
  • the support element comprises a mounting chamfer configured to facilitate mounting of the pivot on the support element.
  • the mounting chamfer is located at one end of the support element facing away from the brush support, advantageously away from the cap body.
  • the mounting chamfer is provided on an internal surface of the support element.
  • the mounting chamfer is provided on an outer surface of the support element.
  • the pivot is arranged between the support element and the rotary support.
  • the pivot is arranged between the support element and the brush support.
  • the support element comprises a plurality of grooves which extend substantially parallel to the pivot axis and which are angularly offset with respect to the pivot axis.
  • the presence of such grooves makes it possible to increase the elasticity of the support element, and therefore to further limit the generation of vibrations and noise during operation of the cleaning unit.
  • the grooves are provided on an internal surface of the support element of the support element.
  • the grooves are provided on an outer surface of the support element.
  • the grooves are regularly distributed around the pivot axis.
  • the grooves form between them ribs which radially hold the pivot.
  • the ribs also form the axial abutment surface against which the pivot bears.
  • the support element is a ring of ring support.
  • the support element is made of elastomer.
  • the pivot is force-fitted on the support element.
  • the pivot is mounted sliding relative to the support element.
  • the rotary support comprises an attachment portion which is tubular and which is fixed to an end portion of the rotary brush, and advantageously to an end portion of the brush body of the rotating brush.
  • the rotary support comprises a support portion on which the pivot is mounted.
  • the support portion is substantially coaxial with the fixing portion.
  • the fixing portion extends around the support portion.
  • the support portion is substantially coaxial with the pivot axis.
  • the pivot extends around the support portion.
  • the pivot is mounted on an outer surface of the support portion.
  • the rotary support comprises a bottom wall which extends transversely to the pivot axis, and for example substantially perpendicular to the pivot axis and which comprises a first face oriented towards the brush support, advantageously the cap body, and a second face opposite the first face, the support portion and the fixing portion extending from the first face of the bottom wall.
  • the brush holder advantageously the cap body, comprises a mounting housing in which the support element is housed.
  • the brush holder advantageously the cap body, comprises a mounting portion which is tubular, the mounting housing being delimited on the outside by the mounting portion.
  • the mounting portion is substantially coaxial with the pivot axis.
  • the fixing portion provided on the rotary support extends around the mounting portion of the brush holder, advantageously of the cap body.
  • the mounting portion extends around the support portion provided on the rotary support.
  • the mounting portion extends in an annular internal volume delimited by the fixing portion and the support portion.
  • the support element is force-fitted in the mounting housing.
  • the outer surface of the support element is substantially cylindrical and has an outer diameter which is substantially identical to the inner diameter of the mounting portion.
  • the mounting housing is disposed in the brush body of the rotating brush.
  • the brush body extends around the mounting portion.
  • the pivot is formed by a bearing.
  • the pivot is formed by an annular plain bearing.
  • the plain bearing comprises a plain bearing ring, which can for example be made of Teflon (registered trademark).
  • the pivot is formed by a bearing, such as a ball bearing.
  • the bearing is fixed to the rotary support.
  • the cleaning unit comprises a fixing member, such as a fixing washer, which is fixed to the rotary support and which is configured to immobilize the bearing axially with respect to the rotary support.
  • the fixing member is for example fixed by screwing onto the rotary support.
  • the rotary brush comprises coupling means configured to couple in rotation with a drive device belonging to the suction head.
  • the coupling means are arranged in the brush body.
  • the rotary brush comprises a first end portion which is supported by the rotary support and a second end portion which is opposite the first end portion and on which the coupling means.
  • the coupling means are configured to mate with complementary coupling means which belong to the drive device and which are coupled in rotation to an output shaft of a motor drive belonging to the drive device.
  • the brush body delimits a motor housing in which the drive motor is intended to be at least partially housed.
  • the second end portion at least partially delimits the motor housing.
  • the closure cap comprises locking means configured to lock the cap body to the main body.
  • the rotary brush comprises bristles provided on the outer surface of the brush body.
  • the rotating brush has at least one row of bristles provided on the outer surface of the brush body.
  • the main body comprises a passage opening emerging into the receiving housing and the brush holder is a closure cap as previously described.
  • the closure plug is removably fixed to the main body of the suction head and at least partially closes the passage opening.
  • the suction head comprises a drive device configured to drive the rotary brush in rotation about a rotation axis substantially coaxial with the pivot axis.
  • the drive device comprises a drive motor comprising an output shaft which is substantially aligned with the pivot axis.
  • the cleaning unit is connected to the main body of the suction head via a pivot connection so as to allow rotation of the rotating brush relative to the main body around the axis of rotation.
  • the pivot connection is made by the drive motor.
  • the drive device comprises complementary coupling means which are coupled in rotation to the output shaft of the drive motor and which are arranged in the brush body, the means complementary couplings being configured to couple in rotation with the coupling means provided on the rotating brush.
  • the passage opening is provided on a side face of the main body.
  • the main body comprises a sole provided with the lower face which is configured to be oriented towards the surface to be cleaned, and with a suction orifice opening out into the lower face.
  • the receiving housing opens into the underside of the sole via the suction orifice.
  • the suction orifice has an elongated shape and extends transversely, and for example perpendicularly, to the direction of movement of the suction head.
  • THE figures 1 to 8 represent a suction head 2 comprising a connection sleeve 3 to which is intended to be connected an end piece of a rigid or flexible tube, itself connected to a suction system of a vacuum cleaner (not shown).
  • a vacuum cleaner (not shown)
  • the suction head 2 comprises a main body 4 configured to be moved over a surface to be cleaned.
  • the connection sleeve 3 is advantageously mounted in a pivot connection with respect to the main body 4 so as to allow the main body 4 to pivot forwards and backwards when the suction head 2 moves according to a direction of travel D1.
  • the main body 4 comprises a sole 5 provided with a lower face 6 configured to be oriented towards the surface to be cleaned, and with a suction orifice 7 opening onto the lower face 6.
  • the suction orifice 7 communicates with the connection sleeve 3 through in particular a connecting passage formed at least in part, for example by a flexible connecting conduit.
  • the suction orifice 7 can for example have an elongated shape and extend transversely, and for example perpendicularly, to the direction of movement D1 of the suction head 2.
  • the main body 4 further comprises a receiving housing 9 which opens into the underside of the sole 5 via the suction orifice 7, and which is fluidly connected to the connecting passage.
  • the receiving housing 9 forms a suction chamber.
  • the suction head 2 also comprises a cleaning unit 11 comprising a rotating brush 12.
  • the rotating brush 12 comprises a brush body 13 which has a generally tubular shape and which extends along a central axis A.
  • the brush body 13 is rotatably mounted in the receiving housing 9 about an axis of rotation which is substantially coaxial with the central axis A of the brush body 13.
  • the brush body 13 is removably mounted in the receiving housing 9 and is configured to be introduced into and removed from the receiving housing 9 along a mounting direction D2.
  • the mounting direction D2 extends transversely, and preferably perpendicularly, to the direction of movement D1 of the suction head 2.
  • the main body 4 comprises a passage opening 14 opening into the receiving housing 9 and through which the brush body 13 can be introduced into and removed from the receiving housing 9.
  • the passage opening 14 is provided on a side face of the main body 4.
  • the brush body could be withdrawn in a direction perpendicular to the lower face 6 of the sole 5 by means of a removable part of the sole 5.
  • the rotating brush 12 comprises bristles 15 provided on the outer surface of the brush body 13.
  • the brush body 13 is generally cylindrical with a circular section, and the rotating brush 12 comprises a plurality of rows of bristles extending for example helically around the central axis A of the brush body 13.
  • the rows of bristles could be replaced by elastically deformable strips or by a foam cleaning sleeve.
  • the cleaning unit 11 further comprises a brush holder configured to be fixed to the main body 4 of the suction head 2.
  • the rotating brush 12 is mounted so as to be able to rotate with respect to the brush support.
  • the brush holder is a closure cap 16 which is configured to at least partially close the passage opening 14 when the brush body 13 is mounted in the receiving housing 9.
  • the closure cap 16 includes a cap body 17 configured to be removably attached to the main body 4 of the suction head 2.
  • the closure cap 16 includes locking means configured to lock the cap body 17 on main body 4.
  • the suction head 2 also comprises a drive device 18 configured to drive the brush body 13 in rotation around the axis of rotation.
  • the drive device 18 comprises more particularly a drive motor 19, preferably electric, comprising an output shaft 21.
  • the output shaft 18 forms a drive shaft which is substantially aligned with the axis of rotation of the brush body 13.
  • the drive motor 19 is housed in a motor compartment 22 delimited by the main body 4, and the motor compartment 22 and the drive motor 19 are arranged in a motor housing 23 delimited by the brush body 13.
  • the drive motor 19 is arranged in the suction head outside the rotating brush 12.
  • the output shaft 21 of the drive motor 19 is extends parallel to a drive shaft which is aligned with the axis of rotation of the brush body 13.
  • the output shaft 21 of the drive motor 19 is then coupled to the drive shaft, for example, by a gear chain or by a belt which is for example of the notched type.
  • the rotating brush 12 more particularly comprises coupling means 24 which are arranged in the brush body 13 and which are configured to couple in rotation with complementary coupling means 25 which belong to the drive device 18 and which are coupled in rotation to the output shaft 21 of the drive motor 19.
  • the coupling means 24 comprise a coupling part 26 which is integral in rotation with the brush body 13, and which can for example be made in a single part with the brush body 13, and the complementary coupling means 25 comprise a coupling member 27 which is coupled in rotation to the output shaft 21 and which is configured to cooperate with the coupling part 26.
  • coupling member 27 can for example be made of plastic.
  • the brush body 13 more particularly comprises a first end portion 13.1 which is rotatably mounted relative to the cap body 17, and a second end portion 13.2 which is located close to the drive device 18 and which delimits the motor housing 23.
  • the coupling part 26 is provided on the second end portion 13.2 of the brush body 13, and the second end portion 13.2 of the brush body 13 is connected to the body main 4 of the suction head 2 via a pivot connection which is directly formed by the drive motor 19.
  • the cleaning unit 11 also comprises a rotary support 28 which is integral in rotation with the rotary brush 12 and which supports the rotary brush 12.
  • the rotary support 28 is substantially coaxial with the axis of rotation of the brush body 13, and is disposed at least partly in the brush body 13.
  • the rotary support 28 comprises a bottom wall 29 which extends substantially perpendicular to the axis of rotation of the brush body 13
  • the bottom wall 29 comprises a first face 29.1 oriented towards the stopper body 17 and a second face 29.2 opposite the first face 29.1.
  • the rotary support 28 further comprises a fixing portion 31 which extends from the first face 29.1 of the bottom wall 29.
  • the fixing portion 31 is tubular and is fixed to the end portion 13.1 of the body of the brush 13, for example by gluing or clipping or by any other means.
  • the attachment portion 31 has an outer diameter which is substantially identical to the inner diameter of the first end portion 13.1 of the brush body 13.
  • the rotary support 28 also comprises a support portion 32 which extends from the first face 29.1 of the bottom wall 29 and which is coaxial with the fixing portion 31.
  • the fixing portion 31 is extends around the support portion 32, and the fixing portion 31 and the support portion 32 define an annular internal volume 33.
  • the rotary support 28 is connected to the cap body 17 via a pivot 34 having a pivot axis B which is substantially coincident with the central axis A of the brush body 13 so as to allow rotation of the rotary support 28 with respect to the cap body 17 around the pivot axis B, and therefore a rotation of the brush body 13 around the axis of rotation.
  • the cleaning unit 11 further comprises a support element 35 which is elastically deformable and on which the pivot 34 is mounted.
  • the support element 35 is arranged between the pivot 34 and the cap body 17, and the pivot 34 is disposed between the support element 35 and the support portion 32.
  • the support element 35 is made of elastomer and is formed as an annular support ring.
  • the plug body 17 comprises a mounting portion 36 which is tubular and which delimits a mounting housing 37 in which the support element 35 is housed.
  • assembly 36 is substantially coaxial with the pivot axis B, and extends in the annular internal volume 33 delimited by the fixing portion 31 and the support portion 32.
  • the support element 35 can for example be mounted by force in the mounting housing 37, and the outer surface of the support element 35 may for example be substantially cylindrical and have an outer diameter which is substantially identical to the inner diameter of the mounting portion 36.
  • the support element 35 comprises a shoulder 38 which is advantageously annular and which delimits an axial abutment surface 39 against which the pivot 34 bears.
  • the shoulder 38 is provided on an inner surface of the element of support 35 and the pivot 34 is housed in the support element 35.
  • the support element 35 further comprises a mounting chamfer 41 which is configured to facilitate mounting of the pivot 34 on the support element 35, and more particularly in the support element 35.
  • the chamfer of mounting 41 is located at an end of support member 35 which faces away from cap body 17, and is provided on an inner surface of support member 35.
  • the support element 35 comprises a plurality of grooves 42 which extend substantially parallel to the pivot axis B and which are regularly distributed around the pivot axis B.
  • the grooves 42 are provided on an internal surface of the support element 35 such that the axial abutment surface 39 is discontinuous.
  • the grooves 42 could however be provided on an outer surface of the support element 35.
  • the grooves 42 form between them ribs 52 ( figure 4 And 7 ) which radially hold the pivot.
  • the ribs 52 also form the axial abutment surface 39 against which the pivot 34 bears.
  • the pivot 34 is formed by a bearing, and more particularly by a ball bearing, and is fixed to an outer surface of the support portion 32 so as to extend around the support portion 32.
  • the cleaning unit 11 comprises a fixing member 43, such as a fixing washer, which is fixed to the rotary support 28, and more particularly to the support portion 32, and which is configured to axially immobilize the pivot 34 with respect to the rotary support 28.
  • the fixing member 43 is for example fixed to the rotary support 28 by screwing.
  • the pivot 34 is preferably mounted by force in the support element 35.
  • the support element 35 can however be uncoupled from the pivot 34 by, for example, exerting a tensile force on the cap body 17 which is greater than the frictional forces exerted between the support element 35 and the pivot 34, and more particularly between the support element 35 and the ball bearing forming the pivot 34.
  • the pivot 34 could however be mounted sliding relative to the support element 35.
  • the support element 35 could be arranged between the pivot 34 and the rotary support 28.
  • the pivot 34 could extend around the support element 35, and the pivot 34 could be placed between the support element 35 and the cap body 17.
  • the pivot 34 could be formed by a plain bearing comprising a plain bearing ring, which could for example be made of Teflon (registered trademark).

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

Description

Domaine techniqueTechnical area

La présente invention concerne le domaine des aspirateurs équipés d'une tête d'aspiration permettant d'aspirer les poussières et les déchets de faible granulométrie présents sur une surface à nettoyer.The present invention relates to the field of vacuum cleaners equipped with a suction head making it possible to suck up dust and small-particle waste present on a surface to be cleaned.

Etat de la techniqueState of the art

Les aspirateurs équipés d'une tête d'aspiration sont bien connus sur le marché, ceux-ci permettant de nettoyer des surfaces par aspiration pour l'évacuation des poussières et des déchets de faible granulométrie reposant sur celles-ci. La surface à aspirer peut par exemple être du carrelage, du parquet, du stratifié, de la moquette ou un tapis.Vacuum cleaners equipped with a suction head are well known on the market, these making it possible to clean surfaces by suction for the evacuation of dust and waste of small particle size resting thereon. The surface to be vacuumed can for example be tiles, parquet, laminate, carpet or carpet.

Une tête d'aspiration comprend de façon connue un corps principal comportant une semelle munie d'une face inférieure et d'un orifice d'aspiration débouchant dans la face inférieure de la semelle. La face inférieure de la semelle est destinée à être positionnée de manière attenante à la surface à aspirer durant l'utilisation de la tête d'aspiration.A suction head comprises, in known manner, a main body comprising a sole provided with a lower face and with a suction orifice opening out into the lower face of the sole. The underside of the soleplate is intended to be positioned adjacent to the surface to be vacuumed during use of the suction head.

Afin d'améliorer les performances de nettoyage d'une tête d'aspiration, il est connu d'équiper cette dernière d'une unité de nettoyage comprenant :

  • une brosse rotative qui est mobile en rotation autour d'un axe de rotation et qui est montée de manière amovible dans un logement de réception délimité par le corps principal de la tête d'aspiration, et
  • un bouchon de fermeture qui est configuré pour fermer au moins partiellement une ouverture de passage prévue sur le corps principal et à travers laquelle la brosse rotative est apte à être introduite dans et retirée hors du logement de réception.
In order to improve the cleaning performance of a suction head, it is known to equip the latter with a cleaning unit comprising:
  • a rotary brush which is rotatable about a rotation axis and which is removably mounted in a receiving housing delimited by the main body of the suction head, and
  • a closure plug which is configured to at least partially close a passage opening provided on the main body and through which the rotating brush is adapted to be inserted into and withdrawn from the receiving housing.

Une première portion d'extrémité de la brosse rotative est reliée au corps principal de la tête d'aspiration par l'intermédiaire d'une première liaison pivot de manière à permettre une rotation de la brosse rotative par rapport au corps principal autour d'un axe de rotation, et une deuxième portion d'extrémité de la brosse rotative est reliée au bouchon de fermeture par l'intermédiaire d'une deuxième liaison pivot de manière à permettre une rotation de la brosse rotative par rapport au bouchon de fermeture autour d'un axe de pivot.A first end portion of the rotating brush is connected to the main body of the suction head via a first pivot connection so as to allow rotation of the rotating brush relative to the main body around a axis of rotation, and a second end portion of the rotating brush is connected to the closure cap via a second pivot connection so as to allow rotation of the rotary brush relative to the closure cap about a pivot axis.

Une telle configuration peut générer des vibrations et générer des bruits qui nuisent au confort d'utilisation d'une telle tête d'aspiration. Les vibrations peuvent, par exemple, être générées par un défaut d'alignement entre l'axe de rotation et l'axe central de la brosse. Une unité de nettoyage selon le préambule de la revendication 1 est déjà connue par exemple du document US-A-5465451 .Such a configuration can generate vibrations and generate noises which are detrimental to the comfort of use of such a suction head. The vibrations can, for example, be generated by a misalignment between the axis of rotation and the central axis of the brush. A cleaning unit according to the preamble of claim 1 is already known for example from the document US-A-5465451 .

Résumé de l'inventionSummary of the invention

La présente invention vise à remédier à tout ou partie de ces inconvénients.The present invention aims to remedy all or part of these drawbacks.

Le problème technique à la base de l'invention consiste notamment à fournir une unité de nettoyage pour tête d'aspiration qui assure un confort accru à un utilisateur.The technical problem underlying the invention consists in particular in providing a cleaning unit for a suction head which provides increased comfort to a user.

A cet effet, la présente invention concerne une unité de nettoyage pour tête d'aspiration, comprenant :

  • une brosse rotative qui est configurée pour être montée de manière amovible dans un logement de réception prévu sur un corps principal de la tête d'aspiration et pour être entraînée en rotation autour d'un axe de rotation, et
  • un support de brosse configuré pour être fixé au corps principal de la tête d'aspiration, la brosse rotative étant montée mobile en rotation par rapport au support de brosse. L'unité de nettoyage comprend en outre :
  • un support rotatif qui est solidaire en rotation de la brosse rotative et qui supporte la brosse rotative, le support rotatif étant relié au support de brosse par l'intermédiaire d'un pivot ayant un axe de pivot de manière à permettre une rotation du support rotatif par rapport au support de brosse autour de l'axe de pivot, et
  • un élément de support qui est élastiquement déformable et sur lequel est monté le pivot, l'élément de support étant disposé entre le support de brosse et le support rotatif.
To this end, the present invention relates to a cleaning unit for a suction head, comprising:
  • a rotating brush which is configured to be removably mounted in a receiving housing provided on a main body of the suction head and to be rotated about a rotation axis, and
  • a brush holder configured to be fixed to the main body of the suction head, the rotary brush being rotatably mounted relative to the brush holder. The cleaning unit further includes:
  • a rotary support which is integral in rotation with the rotary brush and which supports the rotary brush, the rotary support being connected to the brush holder via a pivot having a pivot axis so as to allow rotation of the rotary support relative to the brush holder around the pivot axis, and
  • a support element which is elastically deformable and on which the pivot is mounted, the support element being disposed between the brush support and the rotary support.

La présence d'un tel élément de support permet de filtrer et de limiter la transmission de vibrations depuis la brosse rotative vers la tête d'aspiration et la génération de bruits qui seraient susceptibles de nuire au confort d'un utilisateur. Une telle configuration de l'unité de nettoyage selon la présente invention assure ainsi un confort accru pour un utilisateur.The presence of such a support element makes it possible to filter and limit the transmission of vibrations from the rotating brush to the suction head and the generation of noise which would be likely to affect the comfort of a user. Such a configuration of the cleaning unit according to the present invention thus ensures increased comfort for a user.

L'unité de nettoyage peut en outre présenter une ou plusieurs des caractéristiques suivantes, prises seules ou en combinaison.The cleaning unit may further have one or more of the following features, taken alone or in combination.

Selon un mode de réalisation préféré de l'invention, l'élément de support est disposé entre le support de brosse et le pivot.According to a preferred embodiment of the invention, the support element is arranged between the brush support and the pivot.

Dans une variante au mode de réalisation juste précité, l'élément de support est disposé entre le pivot et le support rotatif.In a variant to the embodiment just mentioned, the support element is arranged between the pivot and the rotary support.

Avantageusement, le support de brosse est configuré pour être fixé de manière amovible au corps principal de la tête d'aspiration.Advantageously, the brush holder is configured to be removably attached to the main body of the suction head.

Avantageusement, le support de brosse est un bouchon de fermeture qui est configuré pour fermer au moins partiellement une ouverture de passage prévue sur le corps principal de la tête d'aspiration et à travers laquelle la brosse rotative est apte à être introduite dans le logement de réception et retirée hors du logement de réception.Advantageously, the brush holder is a closure cap which is configured to at least partially close a passage opening provided on the main body of the suction head and through which the rotating brush is able to be introduced into the housing of the suction head. receiving and removed from the receiving housing.

Avantageusement, le bouchon de fermeture comporte un corps de bouchon configuré pour être fixé au corps principal de la tête d'aspiration. La brosse rotative est alors montée mobile en rotation par rapport au corps de bouchon. Le support rotatif est relié au corps de bouchon par l'intermédiaire du pivot de manière à permettre une rotation du support rotatif par rapport au corps de bouchon autour de l'axe de pivot. L'élément de support étant disposé entre le corps de bouchon et le support rotatif, de préférence entre le corps de bouchon et le pivot.Advantageously, the closure cap comprises a cap body configured to be fixed to the main body of the suction head. The rotating brush is then mounted so as to be able to rotate relative to the cap body. The rotatable support is connected to the cap body via the pivot so as to allow rotation of the rotatable support relative to the cap body around the pivot axis. The support element being arranged between the plug body and the rotary support, preferably between the plug body and the pivot.

Selon un mode de réalisation de l'invention, la brosse rotative est configurée pour être montée de manière amovible dans le logement de réception selon une direction de montage qui s'étend transversalement, et de préférence perpendiculairement, à une direction de déplacement de la tête d'aspiration.According to one embodiment of the invention, the rotating brush is configured to be removably mounted in the receiving housing in a mounting direction which extends transversely, and preferably perpendicularly, to a direction of movement of the head suction.

Selon un mode de réalisation de l'invention, l'axe de pivot est sensiblement confondu avec un axe central de la brosse rotative.According to one embodiment of the invention, the pivot axis is substantially coincident with a central axis of the rotating brush.

Selon un mode de réalisation de l'invention, la brosse rotative comporte un corps de brosse qui a une forme globalement tubulaire. De façon avantageuse, le corps de brosse est cylindrique à section circulaire.According to one embodiment of the invention, the rotating brush comprises a brush body which has a generally tubular shape. Advantageously, the brush body is cylindrical with a circular section.

Selon un mode de réalisation de l'invention, le support rotatif est disposé au moins en partie dans le corps de brosse.According to one embodiment of the invention, the rotary support is arranged at least partly in the brush body.

Selon un mode de réalisation de l'invention, l'élément de support comporte une surface de butée axiale contre laquelle prend appui le pivot.According to one embodiment of the invention, the support element comprises an axial abutment surface against which the pivot bears.

Selon un mode de réalisation de l'invention, l'élément de support comporte un épaulement délimitant la surface de butée axiale.According to one embodiment of the invention, the support element comprises a shoulder defining the axial abutment surface.

Selon un mode de réalisation de l'invention, l'épaulement est annulaire.According to one embodiment of the invention, the shoulder is annular.

Selon un mode de réalisation préféré de l'invention, le pivot est logé dans l'élément de support. Cet arrangement permet à l'unité de nettoyage d'être plus compacte.According to a preferred embodiment of the invention, the pivot is housed in the support element. This arrangement allows the cleaning unit to be more compact.

Selon un mode de réalisation préféré de l'invention, lorsque le pivot est logé dans l'élément de support, l'épaulement est prévu sur une surface interne de l'élément de support. Dans une variante de réalisation où le pivot serait par exemple disposé autour de l'élément support, l'épaulement peut être prévu sur une surface externe de l'élément de support.According to a preferred embodiment of the invention, when the pivot is housed in the support element, the shoulder is provided on an internal surface of the support element. In a variant embodiment where the pivot would for example be arranged around the support element, the shoulder can be provided on an external surface of the support element.

Selon un mode de réalisation de l'invention, l'élément de support comporte un chanfrein de montage configuré pour faciliter un montage du pivot sur l'élément de support. Ces dispositions permettent notamment de faciliter une fixation du support de brosse, avantageusement du corps de bouchon, sur le corps de brosse de la brosse rotative après par exemple un démontage de la brosse rotative ou un remplacement de cette dernière.According to one embodiment of the invention, the support element comprises a mounting chamfer configured to facilitate mounting of the pivot on the support element. These arrangements make it possible in particular to facilitate attachment of the brush support, advantageously of the plug body, to the brush body of the rotary brush after, for example, disassembly of the rotary brush or replacement of the latter.

Selon un mode de réalisation de l'invention, le chanfrein de montage est situé à une extrémité de l'élément de support orientée à l'opposé du support de brosse, avantageusement à l'opposé du corps de bouchon.According to one embodiment of the invention, the mounting chamfer is located at one end of the support element facing away from the brush support, advantageously away from the cap body.

Selon un mode de réalisation préféré de l'invention, lorsque le pivot est logé dans l'élément de support, le chanfrein de montage est prévu sur une surface interne de l'élément de support.According to a preferred embodiment of the invention, when the pivot is housed in the support element, the mounting chamfer is provided on an internal surface of the support element.

Dans une variante au mode de réalisation juste précité, lorsque le pivot est par exemple disposé autour de l'élément de support, le chanfrein de montage est prévu sur une surface externe de l'élément de support.In a variant to the embodiment just mentioned, when the pivot is for example arranged around the support element, the mounting chamfer is provided on an outer surface of the support element.

Selon un mode de réalisation préféré de l'invention, le pivot est disposé entre l'élément de support et le support rotatif.According to a preferred embodiment of the invention, the pivot is arranged between the support element and the rotary support.

Dans une variante au mode de réalisation juste précité, le pivot est disposé entre l'élément de support et le support de brosse.In a variant to the embodiment just mentioned, the pivot is arranged between the support element and the brush support.

Selon un mode de réalisation de l'invention, l'élément de support comporte une pluralité de rainures qui s'étendent sensiblement parallèlement à l'axe de pivot et qui sont décalées angulairement par rapport à l'axe de pivot. La présence de telles rainures permet d'augmenter l'élasticité de l'élément de support, et donc de limiter encore la génération de vibrations et de bruit lors du fonctionnement de l'unité de nettoyage.According to one embodiment of the invention, the support element comprises a plurality of grooves which extend substantially parallel to the pivot axis and which are angularly offset with respect to the pivot axis. The presence of such grooves makes it possible to increase the elasticity of the support element, and therefore to further limit the generation of vibrations and noise during operation of the cleaning unit.

Selon un mode de réalisation préféré de l'invention, lorsque le pivot est logé dans l'élément de support, les rainures sont prévues sur une surface interne de l'élément de support de l'élément de support.According to a preferred embodiment of the invention, when the pivot is housed in the support element, the grooves are provided on an internal surface of the support element of the support element.

Dans une variante au mode de réalisation juste précité, lorsque le pivot est par exemple disposé autour de l'élément de support, les rainures sont prévues sur une surface externe de l'élément de support.In a variant to the embodiment just mentioned, when the pivot is for example arranged around the support element, the grooves are provided on an outer surface of the support element.

Selon un mode de réalisation de l'invention, les rainures sont régulièrement réparties autour de l'axe de pivot.According to one embodiment of the invention, the grooves are regularly distributed around the pivot axis.

Avantageusement, les rainures forment entre elles des nervures qui maintiennent radialement le pivot. Avantageusement, les nervures réalisent aussi la surface de butée axiale contre laquelle prend appui le pivot.Advantageously, the grooves form between them ribs which radially hold the pivot. Advantageously, the ribs also form the axial abutment surface against which the pivot bears.

Selon un mode de réalisation de l'invention, l'élément de support est une bague de support annulaire.According to one embodiment of the invention, the support element is a ring of ring support.

Selon un mode de réalisation de l'invention, l'élément de support est en élastomère.According to one embodiment of the invention, the support element is made of elastomer.

Selon un mode de réalisation de l'invention, le pivot est monté en force sur l'élément de support.According to one embodiment of the invention, the pivot is force-fitted on the support element.

Selon un mode de réalisation de l'invention, le pivot est monté glissant par rapport à l'élément de support.According to one embodiment of the invention, the pivot is mounted sliding relative to the support element.

Selon un mode de réalisation de l'invention, le support rotatif comporte une portion de fixation qui est tubulaire et qui est fixée à une portion d'extrémité de la brosse rotative, et avantageusement à une portion d'extrémité du corps de brosse de la brosse rotative.According to one embodiment of the invention, the rotary support comprises an attachment portion which is tubular and which is fixed to an end portion of the rotary brush, and advantageously to an end portion of the brush body of the rotating brush.

Selon un mode de réalisation de l'invention, le support rotatif comporte une portion de support sur laquelle est monté le pivot.According to one embodiment of the invention, the rotary support comprises a support portion on which the pivot is mounted.

Selon un mode de réalisation de l'invention, la portion de support est sensiblement coaxiale à la portion de fixation.According to one embodiment of the invention, the support portion is substantially coaxial with the fixing portion.

Selon un mode de réalisation de l'invention, la portion de fixation s'étend autour de la portion de support.According to one embodiment of the invention, the fixing portion extends around the support portion.

Selon un mode de réalisation de l'invention, la portion de support est sensiblement coaxiale à l'axe de pivot.According to one embodiment of the invention, the support portion is substantially coaxial with the pivot axis.

Selon un mode de réalisation de l'invention, le pivot s'étend autour de la portion de support. De façon avantageuse, le pivot est monté sur une surface externe de la portion de support.According to one embodiment of the invention, the pivot extends around the support portion. Advantageously, the pivot is mounted on an outer surface of the support portion.

Selon un mode de réalisation de l'invention, le support rotatif comporte une paroi de fond qui s'étend transversalement à l'axe de pivot, et par exemple sensiblement perpendiculairement à l'axe de pivot et qui comprend une première face orientée vers le support de brosse, avantageusement le corps de bouchon, et une deuxième face opposée à la première face, la portion de support et la portion de fixation s'étendant à partir de la première face de la paroi de fond.According to one embodiment of the invention, the rotary support comprises a bottom wall which extends transversely to the pivot axis, and for example substantially perpendicular to the pivot axis and which comprises a first face oriented towards the brush support, advantageously the cap body, and a second face opposite the first face, the support portion and the fixing portion extending from the first face of the bottom wall.

Selon un mode de réalisation de l'invention, le support de brosse, avantageusement le corps de bouchon, comporte un logement de montage dans lequel est logé l'élément de support.According to one embodiment of the invention, the brush holder, advantageously the cap body, comprises a mounting housing in which the support element is housed.

Selon un mode de réalisation de l'invention, le support de brosse, avantageusement le corps de bouchon, comporte une portion de montage qui est tubulaire, le logement de montage étant délimité extérieurement par la portion de montage. De façon avantageuse, la portion de montage est sensiblement coaxiale à l'axe de pivot.According to one embodiment of the invention, the brush holder, advantageously the cap body, comprises a mounting portion which is tubular, the mounting housing being delimited on the outside by the mounting portion. Advantageously, the mounting portion is substantially coaxial with the pivot axis.

Selon un mode de réalisation de l'invention, la portion de fixation prévue sur le support rotatif s'étend autour de la portion de montage du support de brosse, avantageusement du corps de bouchon.According to one embodiment of the invention, the fixing portion provided on the rotary support extends around the mounting portion of the brush holder, advantageously of the cap body.

Selon un mode de réalisation de l'invention, la portion de montage s'étend autour de la portion de support prévue sur le support rotatif.According to one embodiment of the invention, the mounting portion extends around the support portion provided on the rotary support.

Selon un mode de réalisation de l'invention, la portion de montage s'étend dans un volume interne annulaire délimité par la portion de fixation et la portion de support.According to one embodiment of the invention, the mounting portion extends in an annular internal volume delimited by the fixing portion and the support portion.

Selon un mode de réalisation de l'invention, l'élément de support est monté en force dans le logement de montage. De façon avantageuse, la surface externe de l'élément de support est sensiblement cylindrique et présente un diamètre externe qui est sensiblement identique au diamètre interne de la portion de montage.According to one embodiment of the invention, the support element is force-fitted in the mounting housing. Advantageously, the outer surface of the support element is substantially cylindrical and has an outer diameter which is substantially identical to the inner diameter of the mounting portion.

Selon un mode de réalisation de l'invention, le logement de montage est disposé dans le corps de brosse de la brosse rotative. De façon avantageuse, le corps de brosse s'étend autour de la portion de montage.According to one embodiment of the invention, the mounting housing is disposed in the brush body of the rotating brush. Advantageously, the brush body extends around the mounting portion.

Selon un mode de réalisation de l'invention, le pivot est formé par un palier.According to one embodiment of the invention, the pivot is formed by a bearing.

Selon un mode de réalisation de l'invention, le pivot est formé par un palier lisse annulaire.According to one embodiment of the invention, the pivot is formed by an annular plain bearing.

Selon un mode de réalisation de l'invention, le palier lisse comporte une bague de palier lisse, qui peut par exemple être réalisée en Téflon (marque déposée).According to one embodiment of the invention, the plain bearing comprises a plain bearing ring, which can for example be made of Teflon (registered trademark).

Selon un mode de réalisation de l'invention, le pivot est formé par un roulement, tel qu'un roulement à billes.According to one embodiment of the invention, the pivot is formed by a bearing, such as a ball bearing.

Selon un mode de réalisation de l'invention, le roulement est fixé au support rotatif.According to one embodiment of the invention, the bearing is fixed to the rotary support.

Selon un mode de réalisation de l'invention, l'unité de nettoyage comporte un organe de fixation, tel qu'une rondelle de fixation, qui est fixé au support rotatif et qui est configuré pour immobiliser axialement le roulement par rapport au support rotatif. L'organe de fixation est par exemple fixé par vissage sur le support rotatif.According to one embodiment of the invention, the cleaning unit comprises a fixing member, such as a fixing washer, which is fixed to the rotary support and which is configured to immobilize the bearing axially with respect to the rotary support. The fixing member is for example fixed by screwing onto the rotary support.

Selon un mode de réalisation de l'invention, la brosse rotative comporte des moyens d'accouplement configurés pour s'accoupler en rotation avec un dispositif d'entraînement appartenant à la tête d'aspiration.According to one embodiment of the invention, the rotary brush comprises coupling means configured to couple in rotation with a drive device belonging to the suction head.

Selon un mode de réalisation de l'invention, les moyens d'accouplement sont disposés dans le corps de brosse.According to one embodiment of the invention, the coupling means are arranged in the brush body.

Selon un mode de réalisation de l'invention, la brosse rotative comporte une première portion d'extrémité qui est supportée par le support rotatif et une deuxième portion d'extrémité qui est opposée à la première portion d'extrémité et sur laquelle sont prévus les moyens d'accouplement.According to one embodiment of the invention, the rotary brush comprises a first end portion which is supported by the rotary support and a second end portion which is opposite the first end portion and on which the coupling means.

Selon un mode de réalisation de l'invention, les moyens d'accouplement sont configurés pour s'accoupler avec des moyens d'accouplement complémentaires qui appartiennent au dispositif d'entraînement et qui sont couplés en rotation à un arbre de sortie d'un moteur d'entraînement appartenant au dispositif d'entraînement.According to one embodiment of the invention, the coupling means are configured to mate with complementary coupling means which belong to the drive device and which are coupled in rotation to an output shaft of a motor drive belonging to the drive device.

Selon un mode de réalisation de l'invention, le corps de brosse délimite un logement de moteur dans lequel est destiné à être logé au moins partiellement le moteur d'entraînement.According to one embodiment of the invention, the brush body delimits a motor housing in which the drive motor is intended to be at least partially housed.

Selon un mode de réalisation de l'invention, la deuxième portion d'extrémité délimite au moins partiellement le logement de moteur.According to one embodiment of the invention, the second end portion at least partially delimits the motor housing.

Selon un mode de réalisation de l'invention, le bouchon de fermeture comporte des moyens de verrouillage configurés pour verrouiller le corps de bouchon sur le corps principal.According to one embodiment of the invention, the closure cap comprises locking means configured to lock the cap body to the main body.

Selon un mode de réalisation de l'invention, la brosse rotative comporte des poils prévus sur la surface externe du corps de brosse. De façon avantageuse, la brosse rotative comporte au moins une rangée de poils prévues sur la surface externe du corps de brosse.According to one embodiment of the invention, the rotary brush comprises bristles provided on the outer surface of the brush body. Advantageously, the rotating brush has at least one row of bristles provided on the outer surface of the brush body.

La présente invention concerne en outre une tête d'aspiration comprenant :

  • un corps principal comportant un logement de réception débouchant dans une face inférieure du corps principal qui est configurée pour être orientée vers une surface à nettoyer, et
  • une unité de nettoyage selon la présente invention, la brosse rotative étant montée de manière amovible dans le logement de réception, le support de brosse étant fixé au corps principal de la tête d'aspiration.
The present invention further relates to a suction head comprising:
  • a main body comprising a receiving housing opening into a lower face of the main body which is configured to be oriented towards a surface to be cleaned, and
  • a cleaning unit according to the present invention, the rotating brush being removably mounted in the receiving housing, the brush holder being fixed to the main body of the suction head.

Avantageusement, le corps principal comprend une ouverture de passage débouchant dans le logement de réception et le support de brosse est un bouchon de fermeture tel que précédemment décrit.Advantageously, the main body comprises a passage opening emerging into the receiving housing and the brush holder is a closure cap as previously described.

Selon un mode de réalisation de l'invention, le bouchon de fermeture est fixé de manière amovible au corps principal de la tête d'aspiration et ferme au moins partiellement l'ouverture de passage.According to one embodiment of the invention, the closure plug is removably fixed to the main body of the suction head and at least partially closes the passage opening.

Selon un mode de réalisation de l'invention, la tête d'aspiration comporte un dispositif d'entraînement configuré pour entraîner en rotation la brosse rotative autour d'un axe de rotation sensiblement coaxial à l'axe de pivot.According to one embodiment of the invention, the suction head comprises a drive device configured to drive the rotary brush in rotation about a rotation axis substantially coaxial with the pivot axis.

Selon un mode de réalisation de l'invention, le dispositif d'entraînement comporte un moteur d'entraînement comprenant un arbre de sortie qui est sensiblement aligné avec l'axe de pivot.According to one embodiment of the invention, the drive device comprises a drive motor comprising an output shaft which is substantially aligned with the pivot axis.

Selon un mode de réalisation de l'invention, l'unité de nettoyage est reliée au corps principal de la tête d'aspiration par l'intermédiaire d'une liaison pivot de manière à permettre une rotation de la brosse rotative par rapport au corps principal autour de l'axe de rotation. De façon avantageuse, la liaison pivot est réalisée par le moteur d'entraînement.According to one embodiment of the invention, the cleaning unit is connected to the main body of the suction head via a pivot connection so as to allow rotation of the rotating brush relative to the main body around the axis of rotation. Advantageously, the pivot connection is made by the drive motor.

Selon un mode de réalisation de l'invention, le dispositif d'entraînement comporte des moyens d'accouplement complémentaires qui sont couplés en rotation à l'arbre de sortie du moteur d'entraînement et qui sont disposés dans le corps de brosse, les moyens d'accouplement complémentaires étant configurés pour s'accoupler en rotation avec les moyens d'accouplement prévus sur la brosse rotative.According to one embodiment of the invention, the drive device comprises complementary coupling means which are coupled in rotation to the output shaft of the drive motor and which are arranged in the brush body, the means complementary couplings being configured to couple in rotation with the coupling means provided on the rotating brush.

Selon le mode de réalisation de l'invention, l'ouverture de passage est prévue sur une face latérale du corps principal.According to the embodiment of the invention, the passage opening is provided on a side face of the main body.

Selon un mode de réalisation de l'invention, le corps principal comprend une semelle munie de la face inférieure qui est configurée pour être orientée vers la surface à nettoyer, et d'un orifice d'aspiration débouchant dans la face inférieure. De façon avantageuse, le logement de réception débouche dans la face inférieure de la semelle via l'orifice d'aspiration.According to one embodiment of the invention, the main body comprises a sole provided with the lower face which is configured to be oriented towards the surface to be cleaned, and with a suction orifice opening out into the lower face. Advantageously, the receiving housing opens into the underside of the sole via the suction orifice.

Selon un mode de réalisation de l'invention, l'orifice d'aspiration présente une forme allongée et s'étend transversalement, et par exemple perpendiculairement, à la direction de déplacement de la tête d'aspiration.According to one embodiment of the invention, the suction orifice has an elongated shape and extends transversely, and for example perpendicularly, to the direction of movement of the suction head.

Brève description des figuresBrief description of figures

L'invention sera bien comprise à l'aide de la description qui suit en référence aux dessins schématiques annexés représentant, à titre d'exemple non limitatif, une forme d'exécution de cette tête d'aspiration .

  • [Fig 1] La figure 1 est une vue en perspective de dessus d'une tête d'aspiration selon la présente invention.
  • [Fig 2] La figure 2 est une vue en perspective de dessus de la tête d'aspiration de la figure 1 montrant une unité de nettoyage de la tête d'aspiration partiellement retirée.
  • [Fig 3] La figure 3 est une vue en coupe longitudinale de la tête d'aspiration de la figure 1.
  • [Fig 4] La figure 4 est une vue, à l'échelle agrandie, d'un détail de la figure 3.
  • [Fig 5] La figure 5 est une vue partielle en perspective d'un bouchon de fermeture et d'une semelle de la tête d'aspiration de la figure 1.
  • [Fig 6] La figure 6 est une vue arrière du bouchon de fermeture de la figure 5.
  • [Fig 7] La figure 7 est une vue en perspective du bouchon de fermeture de la figure 5.
  • [Fig 8] La figure 8 est une vue en perspective du bouchon de fermeture de la figure 5.
The invention will be better understood with the aid of the following description with reference to the appended diagrammatic drawings showing, by way of non-limiting example, one embodiment of this suction head.
  • [ Fig 1 ] There figure 1 is a top perspective view of a suction head according to the present invention.
  • [ Fig 2 ] There figure 2 is a perspective view from above of the suction head of the figure 1 showing a partially removed vacuum head cleaning unit.
  • [ Fig.3 ] There picture 3 is a longitudinal sectional view of the suction head of the figure 1 .
  • [ Fig 4 ] There figure 4 is a view, to an enlarged scale, of a detail of the picture 3 .
  • [ Fig.5 ] There figure 5 is a partial perspective view of a closure cap and of a sole of the suction head of the figure 1 .
  • [ Fig 6 ] There figure 6 is a rear view of the closure cap of the figure 5 .
  • [ Fig 7 ] There figure 7 is a perspective view of the closure cap of the figure 5 .
  • [ Fig.8 ] There figure 8 is a perspective view of the closure cap of the figure 5 .

Description détailléedetailed description

Les figures 1 à 8 représentent une tête d'aspiration 2 comprenant un manchon de raccordement 3 auquel est destiné à être raccordé un embout d'un tube rigide ou flexible, lui-même raccordé à un système d'aspiration d'un aspirateur (non illustré). Diverses variantes d'aspirateurs existent déjà sur le marché et pourront être utilisées avec la tête d'aspiration 2 selon l'invention ; ces variantes étant connues de l'homme du métier, elles ne sont pas détaillées dans la présente demande de brevet.THE figures 1 to 8 represent a suction head 2 comprising a connection sleeve 3 to which is intended to be connected an end piece of a rigid or flexible tube, itself connected to a suction system of a vacuum cleaner (not shown). Various variants of vacuum cleaners already exist on the market and can be used with the suction head 2 according to the invention; these variants being known to those skilled in the art, they are not detailed in the present patent application.

La tête d'aspiration 2 comprend un corps principal 4 configuré pour être déplacé sur une surface à nettoyer. Le manchon de raccordement 3 est avantageusement monté en liaison pivot par rapport au corps principal 4 de manière à permettre un pivotement du corps principal 4 vers l'avant et vers l'arrière lors d'un déplacement de la tête d'aspiration 2 selon une direction de déplacement D1.The suction head 2 comprises a main body 4 configured to be moved over a surface to be cleaned. The connection sleeve 3 is advantageously mounted in a pivot connection with respect to the main body 4 so as to allow the main body 4 to pivot forwards and backwards when the suction head 2 moves according to a direction of travel D1.

Le corps principal 4 comprend une semelle 5 munie d'une face inférieure 6 configurée pour être orientée vers la surface à nettoyer, et d'un orifice d'aspiration 7 débouchant sur la face inférieure 6. L'orifice d'aspiration 7 communique avec le manchon de raccordement 3 par le biais notamment d'un passage de liaison formé au moins en partie par exemple par un conduit de liaison flexible. L'orifice d'aspiration 7 peut par exemple présenter une forme allongée et s'étendre transversalement, et par exemple perpendiculairement, à la direction de déplacement D1 de la tête d'aspiration 2.The main body 4 comprises a sole 5 provided with a lower face 6 configured to be oriented towards the surface to be cleaned, and with a suction orifice 7 opening onto the lower face 6. The suction orifice 7 communicates with the connection sleeve 3 through in particular a connecting passage formed at least in part, for example by a flexible connecting conduit. The suction orifice 7 can for example have an elongated shape and extend transversely, and for example perpendicularly, to the direction of movement D1 of the suction head 2.

Le corps principal 4 comprend en outre un logement de réception 9 qui débouche dans la face inférieure de la semelle 5 via l'orifice d'aspiration 7, et qui est relié fluidiquement au passage de liaison. Ainsi, selon le mode de réalisation représenté sur les figures, le logement de réception 9 forme une chambre d'aspiration.The main body 4 further comprises a receiving housing 9 which opens into the underside of the sole 5 via the suction orifice 7, and which is fluidly connected to the connecting passage. Thus, according to the embodiment shown in the figures, the receiving housing 9 forms a suction chamber.

La tête d'aspiration 2 comprend également une unité de nettoyage 11 comportant une brosse rotative 12. La brosse rotative 12 comprend un corps de brosse 13 qui a une forme globalement tubulaire et qui s'étend selon un axe central A. Le corps de brosse 13 est monté mobile en rotation dans le logement de réception 9 autour d'un axe de rotation qui est sensiblement coaxial avec l'axe central A du corps de brosse 13. De façon avantageuse, le corps de brosse 13 est monté de manière amovible dans le logement de réception 9 et est configuré pour être introduit dans et retiré hors du logement de réception 9 selon une direction de montage D2. Avantageusement, la direction de montage D2 s'étend transversalement, et de préférence perpendiculairement, à la direction de déplacement D1 de la tête d'aspiration 2.The suction head 2 also comprises a cleaning unit 11 comprising a rotating brush 12. The rotating brush 12 comprises a brush body 13 which has a generally tubular shape and which extends along a central axis A. The brush body 13 is rotatably mounted in the receiving housing 9 about an axis of rotation which is substantially coaxial with the central axis A of the brush body 13. Advantageously, the brush body 13 is removably mounted in the receiving housing 9 and is configured to be introduced into and removed from the receiving housing 9 along a mounting direction D2. Advantageously, the mounting direction D2 extends transversely, and preferably perpendicularly, to the direction of movement D1 of the suction head 2.

Selon le mode de réalisation représenté sur les figures, le corps principal 4 comporte une ouverture de passage 14 débouchant dans le logement de réception 9 et à travers laquelle le corps de brosse 13 peut être introduit dans et retiré hors du logement de réception 9. De façon avantageuse, l'ouverture de passage 14 est prévue sur une face latérale du corps principal 4.According to the embodiment shown in the figures, the main body 4 comprises a passage opening 14 opening into the receiving housing 9 and through which the brush body 13 can be introduced into and removed from the receiving housing 9. advantageously, the passage opening 14 is provided on a side face of the main body 4.

Dans une variante de réalisation non représentée, le corps de brosse pourrait être retiré selon une direction perpendiculaire à la face inférieure 6 de la semelle 5 par l'intermédiaire d'une partie amovible de la semelle 5.In a variant embodiment not shown, the brush body could be withdrawn in a direction perpendicular to the lower face 6 of the sole 5 by means of a removable part of the sole 5.

Selon le mode de réalisation représenté sur les figures, la brosse rotative 12 comporte des poils 15 prévus sur la surface externe du corps de brosse 13. De façon avantageuse, le corps de brosse 13 est globalement cylindrique à section circulaire, et la brosse rotative 12 comporte une pluralité de rangées de poils s'étendant par exemple hélicoïdalement autour de l'axe central A du corps de brosse 13. Selon une variante de réalisation non représentée sur les figures, les rangées de poils pourraient être remplacées par des lamelles élastiquement déformables ou par un manchon de nettoyage en mousse.According to the embodiment shown in the figures, the rotating brush 12 comprises bristles 15 provided on the outer surface of the brush body 13. Advantageously, the brush body 13 is generally cylindrical with a circular section, and the rotating brush 12 comprises a plurality of rows of bristles extending for example helically around the central axis A of the brush body 13. According to a variant embodiment not shown in the figures, the rows of bristles could be replaced by elastically deformable strips or by a foam cleaning sleeve.

L'unité de nettoyage 11 comporte en outre un support de brosse configuré pour être fixé au corps principal 4 de la tête d'aspiration 2. La brosse rotative 12 est montée mobile en rotation par rapport au support de brosse. Selon le mode de réalisation représenté sur les figures, le support de brosse est un bouchon de fermeture 16 qui est configuré pour fermer au moins partiellement l'ouverture de passage 14 lorsque le corps de brosse 13 est monté dans le logement de réception 9. Le bouchon de fermeture 16 comporte un corps de bouchon 17 configuré pour être fixé de manière amovible au corps principal 4 de la tête d'aspiration 2. De façon avantageuse, le bouchon de fermeture 16 comporte des moyens de verrouillage configurés pour verrouiller le corps de bouchon 17 sur le corps principal 4.The cleaning unit 11 further comprises a brush holder configured to be fixed to the main body 4 of the suction head 2. The rotating brush 12 is mounted so as to be able to rotate with respect to the brush support. According to the embodiment shown in the figures, the brush holder is a closure cap 16 which is configured to at least partially close the passage opening 14 when the brush body 13 is mounted in the receiving housing 9. The closure cap 16 includes a cap body 17 configured to be removably attached to the main body 4 of the suction head 2. Advantageously, the closure cap 16 includes locking means configured to lock the cap body 17 on main body 4.

La tête d'aspiration 2 comporte également un dispositif d'entraînement 18 configuré pour entraîner en rotation le corps de brosse 13 autour de l'axe de rotation. Le dispositif d'entraînement 18 comprend plus particulièrement un moteur d'entraînement 19, de préférence électrique, comprenant un arbre de sortie 21. Dans l'exemple de réalisation représenté sur les figures, l'arbre de sortie 18 forme un arbre d'entraînement qui est sensiblement aligné avec l'axe de rotation du corps de brosse 13. Le moteur d'entraînement 19 est logé dans un compartiment moteur 22 délimité par le corps principal 4, et le compartiment moteur 22 et le moteur d'entraînement 19 sont disposés dans un logement de moteur 23 délimité par le corps de brosse 13.The suction head 2 also comprises a drive device 18 configured to drive the brush body 13 in rotation around the axis of rotation. The drive device 18 comprises more particularly a drive motor 19, preferably electric, comprising an output shaft 21. In the embodiment shown in the figures, the output shaft 18 forms a drive shaft which is substantially aligned with the axis of rotation of the brush body 13. The drive motor 19 is housed in a motor compartment 22 delimited by the main body 4, and the motor compartment 22 and the drive motor 19 are arranged in a motor housing 23 delimited by the brush body 13.

Dans une variante de réalisation de l'invention, le moteur d'entraînement 19 est disposé dans la tête d'aspiration en dehors de la brosse rotative 12. Selon cette variante, l'arbre de sortie 21 du moteur d'entraînement 19 s'étend parallèlement à un arbre d'entraînement qui est aligné avec l'axe de rotation du corps de brosse 13. L'arbre de sortie 21 du moteur d'entraînement 19 est alors couplé à l'arbre d'entraînement, par exemple, par une chaîne d'engrenage ou par une courroie qui est par exemple de type crantée.In a variant embodiment of the invention, the drive motor 19 is arranged in the suction head outside the rotating brush 12. According to this variant, the output shaft 21 of the drive motor 19 is extends parallel to a drive shaft which is aligned with the axis of rotation of the brush body 13. The output shaft 21 of the drive motor 19 is then coupled to the drive shaft, for example, by a gear chain or by a belt which is for example of the notched type.

La brosse rotative 12 comporte plus particulièrement des moyens d'accouplement 24 qui sont disposés dans le corps de brosse 13 et qui sont configurés pour s'accoupler en rotation avec des moyens d'accouplement complémentaires 25 qui appartiennent au dispositif d'entraînement 18 et qui sont couplés en rotation à l'arbre de sortie 21 du moteur d'entraînement 19. Selon le mode de réalisation représenté sur les figures, les moyens d'accouplement 24 comportent une partie d'accouplement 26 qui est solidaire en rotation du corps de brosse 13, et qui peut par exemple être réalisée en une seule pièce avec le corps de brosse 13, et les moyens d'accouplement complémentaires 25 comportent un organe d'accouplement 27 qui est couplé en rotation à l'arbre de sortie 21 et qui est configurée pour coopérer avec la partie d'accouplement 26. L'organe d'accouplement 27 peut par exemple être réalisé en matière plastique.The rotating brush 12 more particularly comprises coupling means 24 which are arranged in the brush body 13 and which are configured to couple in rotation with complementary coupling means 25 which belong to the drive device 18 and which are coupled in rotation to the output shaft 21 of the drive motor 19. According to the embodiment shown in the figures, the coupling means 24 comprise a coupling part 26 which is integral in rotation with the brush body 13, and which can for example be made in a single part with the brush body 13, and the complementary coupling means 25 comprise a coupling member 27 which is coupled in rotation to the output shaft 21 and which is configured to cooperate with the coupling part 26. coupling member 27 can for example be made of plastic.

Le corps de brosse 13 comporte plus particulièrement une première portion d'extrémité 13.1 qui est montée mobile en rotation par rapport au corps de bouchon 17, et une deuxième portion d'extrémité 13.2 qui est située à proximité du dispositif d'entraînement 18 et qui délimite le logement de moteur 23. De façon avantageuse, la partie d'accouplement 26 est prévue sur la deuxième portion d'extrémité 13.2 du corps de brosse 13, et la deuxième portion d'extrémité 13.2 du corps de brosse 13 est reliée au corps principal 4 de la tête d'aspiration 2 par l'intermédiaire d'une liaison pivot qui est directement formée par le moteur d'entraînement 19.The brush body 13 more particularly comprises a first end portion 13.1 which is rotatably mounted relative to the cap body 17, and a second end portion 13.2 which is located close to the drive device 18 and which delimits the motor housing 23. Advantageously, the coupling part 26 is provided on the second end portion 13.2 of the brush body 13, and the second end portion 13.2 of the brush body 13 is connected to the body main 4 of the suction head 2 via a pivot connection which is directly formed by the drive motor 19.

L'unité de nettoyage 11 comporte également un support rotatif 28 qui est solidaire en rotation de la brosse rotative 12 et qui supporte la brosse rotative 12. Selon le mode de réalisation représenté sur les figures, le support rotatif 28 est sensiblement coaxial à l'axe de rotation du corps de brosse 13, et est disposé au moins en partie dans le corps de brosse 13. Le support rotatif 28 comporte une paroi de fond 29 qui s'étend sensiblement perpendiculairement à l'axe de rotation du corps de brosse 13. La paroi de fond 29 comprend une première face 29.1 orientée vers le corps de bouchon 17 et une deuxième face 29.2 opposée à la première face 29.1.The cleaning unit 11 also comprises a rotary support 28 which is integral in rotation with the rotary brush 12 and which supports the rotary brush 12. According to the embodiment shown in the figures, the rotary support 28 is substantially coaxial with the axis of rotation of the brush body 13, and is disposed at least partly in the brush body 13. The rotary support 28 comprises a bottom wall 29 which extends substantially perpendicular to the axis of rotation of the brush body 13 The bottom wall 29 comprises a first face 29.1 oriented towards the stopper body 17 and a second face 29.2 opposite the first face 29.1.

Le support rotatif 28 comporte en outre une portion de fixation 31 qui s'étend à partir de la première face 29.1 de la paroi de fond 29. La portion de fixation 31 est tubulaire et est fixée à la portion d'extrémité 13.1 du corps de brosse 13, par exemple par collage ou clipsage ou par tout autre moyen. De façon avantageuse, la portion de fixation 31 présente un diamètre externe qui est sensiblement identique au diamètre interne de la première portion d'extrémité 13.1 du corps de brosse 13.The rotary support 28 further comprises a fixing portion 31 which extends from the first face 29.1 of the bottom wall 29. The fixing portion 31 is tubular and is fixed to the end portion 13.1 of the body of the brush 13, for example by gluing or clipping or by any other means. Advantageously, the attachment portion 31 has an outer diameter which is substantially identical to the inner diameter of the first end portion 13.1 of the brush body 13.

Le support rotatif 28 comporte également une portion de support 32 qui s'étend à partir de la première face 29.1 de la paroi de fond 29 et qui est coaxiale à la portion de fixation 31. De façon avantageuse, la portion de fixation 31 s'étend autour de la portion de support 32, et la portion de fixation 31 et la portion de support 32 délimitent un volume interne annulaire 33.The rotary support 28 also comprises a support portion 32 which extends from the first face 29.1 of the bottom wall 29 and which is coaxial with the fixing portion 31. Advantageously, the fixing portion 31 is extends around the support portion 32, and the fixing portion 31 and the support portion 32 define an annular internal volume 33.

Le support rotatif 28 est relié au corps de bouchon 17 par l'intermédiaire d'un pivot 34 ayant un axe de pivot B qui est sensiblement confondu avec l'axe central A du corps de brosse 13 de manière à permettre une rotation du support rotatif 28 par rapport au corps de bouchon 17 autour de l'axe de pivot B, et donc une rotation du corps de brosse 13 autour de l'axe de rotation.The rotary support 28 is connected to the cap body 17 via a pivot 34 having a pivot axis B which is substantially coincident with the central axis A of the brush body 13 so as to allow rotation of the rotary support 28 with respect to the cap body 17 around the pivot axis B, and therefore a rotation of the brush body 13 around the axis of rotation.

L'unité de nettoyage 11 comporte de plus un élément de support 35 qui est élastiquement déformable et sur lequel est monté le pivot 34. Selon le mode de réalisation représenté sur les figures, l'élément de support 35 est disposé entre le pivot 34 et le corps de bouchon 17, et le pivot 34 est disposé entre l'élément de support 35 et la portion de support 32. De façon avantageuse, l'élément de support 35 est en élastomère et est formé une bague de support annulaire.The cleaning unit 11 further comprises a support element 35 which is elastically deformable and on which the pivot 34 is mounted. According to the embodiment shown in the figures, the support element 35 is arranged between the pivot 34 and the cap body 17, and the pivot 34 is disposed between the support element 35 and the support portion 32. Advantageously, the support element 35 is made of elastomer and is formed as an annular support ring.

Selon le mode de réalisation représenté sur les figures, le corps de bouchon 17 comporte une portion de montage 36 qui est tubulaire et qui délimite un logement de montage 37 dans lequel est logé l'élément de support 35. De façon avantageuse, la portion de montage 36 est sensiblement coaxiale à l'axe de pivot B, et s'étend dans le volume interne annulaire 33 délimité par la portion de fixation 31 et la portion de support 32. L'élément de support 35 peut par exemple être monté en force dans le logement de montage 37, et la surface externe de l'élément de support 35 peut par exemple être sensiblement cylindrique et présenter un diamètre externe qui est sensiblement identique au diamètre interne de la portion de montage 36.According to the embodiment shown in the figures, the plug body 17 comprises a mounting portion 36 which is tubular and which delimits a mounting housing 37 in which the support element 35 is housed. assembly 36 is substantially coaxial with the pivot axis B, and extends in the annular internal volume 33 delimited by the fixing portion 31 and the support portion 32. The support element 35 can for example be mounted by force in the mounting housing 37, and the outer surface of the support element 35 may for example be substantially cylindrical and have an outer diameter which is substantially identical to the inner diameter of the mounting portion 36.

Selon le mode de réalisation représenté sur les figures, l'élément de support 35 comporte un épaulement 38 qui est avantageusement annulaire et qui délimite une surface de butée axiale 39 contre laquelle prend appui le pivot 34. De façon avantageuse, l'épaulement 38 est prévu sur une surface interne de l'élément de support 35 et le pivot 34 est logé dans l'élément de support 35.According to the embodiment shown in the figures, the support element 35 comprises a shoulder 38 which is advantageously annular and which delimits an axial abutment surface 39 against which the pivot 34 bears. Advantageously, the shoulder 38 is provided on an inner surface of the element of support 35 and the pivot 34 is housed in the support element 35.

L'élément de support 35 comporte en outre un chanfrein de montage 41 qui est configuré pour faciliter un montage du pivot 34 sur l'élément de support 35, et plus particulièrement dans l'élément de support 35. De façon avantageuse, le chanfrein de montage 41 est situé à une extrémité de l'élément de support 35 qui est orientée à l'opposé du corps de bouchon 17, et est prévu sur une surface interne de l'élément de support 35.The support element 35 further comprises a mounting chamfer 41 which is configured to facilitate mounting of the pivot 34 on the support element 35, and more particularly in the support element 35. Advantageously, the chamfer of mounting 41 is located at an end of support member 35 which faces away from cap body 17, and is provided on an inner surface of support member 35.

Selon le mode de réalisation représenté sur les figures, l'élément de support 35 comporte une pluralité de rainures 42 qui s'étendent sensiblement parallèlement à l'axe de pivot B et qui sont régulièrement réparties autour de l'axe de pivot B. De façon avantageuse, les rainures 42 sont prévues sur une surface interne de l'élément de support 35 de telle sorte que la surface de butée axiale 39 est discontinue. Selon une variante de réalisation de l'invention non représentée sur les figures, les rainures 42 pourraient toutefois être prévues sur une surface externe de l'élément de support 35. Selon le mode de réalisation représenté sur les figures, les rainures 42 forment entre elles des nervures 52 (figures 4 et 7) qui maintiennent radialement le pivot. Les nervures 52 réalisent aussi la surface de butée axiale 39 contre laquelle prend appui le pivot 34.According to the embodiment shown in the figures, the support element 35 comprises a plurality of grooves 42 which extend substantially parallel to the pivot axis B and which are regularly distributed around the pivot axis B. advantageously, the grooves 42 are provided on an internal surface of the support element 35 such that the axial abutment surface 39 is discontinuous. According to a variant embodiment of the invention not shown in the figures, the grooves 42 could however be provided on an outer surface of the support element 35. According to the embodiment shown in the figures, the grooves 42 form between them ribs 52 ( figure 4 And 7 ) which radially hold the pivot. The ribs 52 also form the axial abutment surface 39 against which the pivot 34 bears.

Selon le mode de réalisation représenté sur les figures, le pivot 34 est formé par un palier, et plus particulièrement par un roulement à billes, et est fixé sur une surface externe de la portion de support 32 de manière à s'étendre autour de la portion de support 32. De façon avantageuse, l'unité de nettoyage 11 comporte un organe de fixation 43, tel qu'une rondelle de fixation, qui est fixé au support rotatif 28, et plus particulièrement à la portion de support 32, et qui est configuré pour immobiliser axialement le pivot 34 par rapport au support rotatif 28. L'organe de fixation 43 est par exemple fixé au support rotatif 28 par vissage.According to the embodiment shown in the figures, the pivot 34 is formed by a bearing, and more particularly by a ball bearing, and is fixed to an outer surface of the support portion 32 so as to extend around the support portion 32. Advantageously, the cleaning unit 11 comprises a fixing member 43, such as a fixing washer, which is fixed to the rotary support 28, and more particularly to the support portion 32, and which is configured to axially immobilize the pivot 34 with respect to the rotary support 28. The fixing member 43 is for example fixed to the rotary support 28 by screwing.

Le pivot 34 est de préférence monté en force dans l'élément de support 35. De façon avantageuse, l'élément de support 35 peut toutefois être désaccouplé du pivot 34 en exerçant par exemple une force de traction sur le corps de bouchon 17 qui est supérieure aux forces de frottement s'exerçant entre l'élément de support 35 et le pivot 34, et plus particulièrement entre l'élément de support 35 et le roulement à billes formant le pivot 34. Selon une variante de réalisation de l'invention, le pivot 34 pourrait cependant être monté glissant par rapport à l'élément de support 35.The pivot 34 is preferably mounted by force in the support element 35. Advantageously, the support element 35 can however be uncoupled from the pivot 34 by, for example, exerting a tensile force on the cap body 17 which is greater than the frictional forces exerted between the support element 35 and the pivot 34, and more particularly between the support element 35 and the ball bearing forming the pivot 34. According to an alternative embodiment of the invention, the pivot 34 could however be mounted sliding relative to the support element 35.

Selon une variante de réalisation non représentée sur les figures, l'élément de support 35 pourrait être disposé entre le pivot 34 et le support rotatif 28.According to a variant embodiment not shown in the figures, the support element 35 could be arranged between the pivot 34 and the rotary support 28.

Selon une autre variante de réalisation non représentée sur les figures, le pivot 34 pourrait s'étendre autour de l'élément de support 35, et le pivot 34 pourrait être disposé entre l'élément de support 35 et le corps de bouchon 17.According to another alternative embodiment not shown in the figures, the pivot 34 could extend around the support element 35, and the pivot 34 could be placed between the support element 35 and the cap body 17.

Selon encore une autre variante de réalisation non représentée sur les figures, le pivot 34 pourrait être formé par un palier lisse comportant une bague de palier lisse, qui pourrait par exemple être réalisée en Téflon (marque déposée).According to yet another alternative embodiment not shown in the figures, the pivot 34 could be formed by a plain bearing comprising a plain bearing ring, which could for example be made of Teflon (registered trademark).

Claims (18)

  1. Cleaning unit (11) for a suction head (2), comprising:
    - a rotary brush (12) configured to be detachably mounted in a receiving recess (9) provided on a main body (4) of the suction head (2) and to be rotated about an axis of rotation, and
    - a brush holder (16) configured to be attached to the main body (4) of the suction head (2), the rotary brush (12) being rotatably mounted relative to the brush holder (16),
    characterised in that the cleaning unit (11) further comprises:
    - a rotary support (28) which rotates as one with the rotary brush (12) and which supports the rotary brush (12), the rotary support (28) being connected to the brush holder (16) via a pivot (34) having a pivot axis (B) so as to allow the rotary support (28) to rotate relative to the brush holder (16) about the pivot axis (B), characterised in that the cleaning unit comprises
    - a support element (35) which is elastically deformable and on which the pivot (34) is mounted, the support element (35) being arranged between the brush holder (16) and the rotary support (28).
  2. Cleaning unit according to claim 1, wherein the support element (35) is arranged between the brush holder (16) and the pivot (34).
  3. Cleaning unit according to claim 1 or 2, wherein the brush holder (16) is configured to be removably attached to the main body (4) of the suction head (2).
  4. Cleaning unit according to any of claims 1 to 3, wherein the brush holder (16) is a closure plug which is configured to at least partially close a through-opening (14) provided on the main body (4) of the suction head (2) and through which the rotary brush (12) is capable of being introduced into the receiving recess (9) and removed from the receiving recess (9).
  5. Cleaning unit according to the preceding claim, wherein the brush holder (16) comprises a plug body (17) configured to be attached to the main body (4) of the suction head (2), the rotary brush (12) being rotatably mounted relative to the plug body (17), the rotary support (28) being connected to the plug body (17) via the pivot (34) so as to allow the rotary support (28) to rotate relative to the plug body (17) about the pivot axis (B), the support element (35) being arranged between the plug body (17) and the rotary support (28), preferably between the plug body (17) and the pivot (34).
  6. Cleaning unit (11) according to any of the preceding claims, wherein the support element (35) comprises an axial abutment surface (39) on which the pivot (34) bears.
  7. Cleaning unit (11) according to any of the preceding claims, wherein the pivot (34) is housed in the support element (35).
  8. Cleaning unit (11) according to any of the preceding claims, wherein the pivot (34) is arranged between the support element (35) and the rotary support (28).
  9. Cleaning unit (11) according to claim 7, wherein the support element (35) comprises a plurality of grooves (42) which extend substantially parallel to the pivot axis (B) and which are angularly offset from the pivot axis (B).
  10. Cleaning unit (11) according to any of the preceding claims, wherein the support element (35) is an annular support ring.
  11. Cleaning unit (11) according to any of the preceding claims, wherein the support element (35) is made of elastomer.
  12. Cleaning unit (11) according to any of the preceding claims, wherein the rotary support (28) comprises an attachment portion (31) which is tubular and which is attached to an end portion of the rotary brush (12).
  13. Cleaning unit (11) according to any of the preceding claims, wherein the rotary support (28) comprises a support portion (32) on which the pivot (34) is mounted.
  14. Cleaning unit (11) according to any of the preceding claims, wherein the brush holder (16) comprises a mounting recess (37) in which the support element (35) is housed.
  15. Cleaning unit (11) according to any of the preceding claims, wherein the pivot (34) is formed by an annular sliding bearing.
  16. Cleaning unit (11) according to any of the preceding claims, wherein the pivot (34) is formed by a rolling bearing.
  17. Suction head (2) comprising:
    - a main body (4) comprising a receiving recess (9) which opens into a lower side of the main body (4), which lower side is configured to face a surface to be cleaned, and
    - a cleaning unit (11) according to any of the preceding claims, the rotary brush (12) being detachably mounted in the receiving recess (9), the brush holder (16) being attached to the main body (4) of the suction head (2).
  18. Suction head (2) according to the preceding claim and claim 4 or 5, wherein the main body (4) comprises a through-opening (14) which opens into the receiving recess (9) and the brush holder (16) is detachably attached to the main body (4) of the suction head (2) and at least partially closes the through-opening (14).
EP21169521.8A 2020-04-23 2021-04-20 Cleaning unit for suction head Active EP3900595B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2004037A FR3109515B1 (en) 2020-04-23 2020-04-23 Suction head cleaning unit

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EP3900595A1 EP3900595A1 (en) 2021-10-27
EP3900595B1 true EP3900595B1 (en) 2023-02-22

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ES (1) ES2940835T3 (en)
FR (1) FR3109515B1 (en)

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Publication number Priority date Publication date Assignee Title
US4914777A (en) * 1988-09-26 1990-04-10 The Scott Fetzer Company Vacuum cleaner brush bearing assembly
US5465451A (en) * 1989-12-26 1995-11-14 The Scott Fetzer Company Brushroll

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ES2940835T3 (en) 2023-05-11
FR3109515B1 (en) 2022-05-06
EP3900595A1 (en) 2021-10-27
FR3109515A1 (en) 2021-10-29

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