EP3360453B1 - Vacuum cleaner suction head with three positions - Google Patents

Vacuum cleaner suction head with three positions Download PDF

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Publication number
EP3360453B1
EP3360453B1 EP18155424.7A EP18155424A EP3360453B1 EP 3360453 B1 EP3360453 B1 EP 3360453B1 EP 18155424 A EP18155424 A EP 18155424A EP 3360453 B1 EP3360453 B1 EP 3360453B1
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EP
European Patent Office
Prior art keywords
sole
suction head
lever
fork
brush
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
EP18155424.7A
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German (de)
French (fr)
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EP3360453A1 (en
Inventor
Sylvain Renard
Adrien ZANNI
Thierry Prunier
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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Publication date
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Publication of EP3360453A1 publication Critical patent/EP3360453A1/en
Application granted granted Critical
Publication of EP3360453B1 publication Critical patent/EP3360453B1/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
    • A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
    • A47L9/0633—Nozzles with fixed, e.g. adjustably fixed brushes or the like with retractable brushes, combs, lips or pads
    • A47L9/064—Nozzles with fixed, e.g. adjustably fixed brushes or the like with retractable brushes, combs, lips or pads actuating means therefor
    • A47L9/0653—Nozzles with fixed, e.g. adjustably fixed brushes or the like with retractable brushes, combs, lips or pads actuating means therefor with mechanical actuation, e.g. using a lever
    • 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

Definitions

  • the present invention relates to the field of vacuum cleaners equipped with a suction head for sucking dust and small particle size waste present on a surface.
  • the invention aims to design a suction head easily adaptable according to the nature of the surface to be sucked.
  • Vacuums 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 small particle size waste resting thereon.
  • the surface to be vacuumed can be for example tiles, parquet, laminate, carpet or a carpet. It is therefore necessary to be able to best adapt the suction head sweeping the surface as a function of the nature thereof.
  • the suction head traditionally comprises a connection sleeve and a sole, which comprises a bottom face with a cavity extending transversely on the head, said cavity communicating with said sleeve via a rigid or flexible conduit.
  • the underside of the soleplate is positioned adjacent to the surface to be vacuumed during use of the suction head.
  • the suction head comprises a set of two brushes arranged at the front and at the rear of the sole, each on one side of the cavity.
  • a mechanism activated by a joystick makes it possible to define three positions of the set of two brushes. According to a first position of the handle, favorable for use on long pile carpet, the mechanism raises the brushes back with respect to the underside of the sole which thus rests on the suctioned surface. According to a second position of the handle, favorable for use on hard floors, the mechanism descends the brushes projecting from said lower face which is thus detached from the suctioned surface, the brushes being in contact with said surface. According to a third position of the handle, favorable for use on compact or short-pile carpet, the mechanism inclines the set of brushes relative to said underside, the rear brush being projecting from that -this and the brush back before.
  • the sole and the connecting sleeve of the suction head communicate with each other by means of a rigid fork-shaped tube.
  • the tube is articulated, on the one hand, with the sleeve at the axis of the support wheels on the surface to be vacuumed and, on the other hand, with the soleplate at the level of an axis parallel to the axis wheels.
  • the suction head comprises a mechanism actuated by a lever, making it possible to project or withdraw a set of two brushes vis-à-vis the underside of the soleplate, by lowering or raising it.
  • One of the brushes is arranged at the front of the sole and the other at the rear, each on one side of the cavity.
  • the sole and the connection sleeve of the suction head are connected by means of a connecting rod mounted in pivot connection, on the one hand, with the sole on a first axis and, on the other hand, with the sleeve along a second axis, said axes being parallel to each other and with the axis of rotation of support wheels on the surface to be vacuumed.
  • the sole includes two angular stops and the connecting rod comprises at its front end an arm which comes into contact against the angular stops during a pivoting up or down of the sole relative to the connecting rod.
  • the sole comprises on its underside two edges disposed respectively at the front and at the rear of the cavity.
  • the arm comes into contact with the upper angular stop, which brings the front edge into contact with the surface to be suctioned while the rear edge is slightly detached from this surface.
  • the arm comes into contact against the lower angular stop, which brings the rear edge into contact with the surface to be suctioned while the front edge is slightly detached from this surface.
  • the sole and the connection sleeve of the suction head are connected by means of a coupling part allowing an angular clearance between said parts.
  • the coupling part is in pivot connection relative to the sole and comprises a light receiving a pin, arranged on the sleeve, which pivots in this light and slides along it.
  • a mechanism actuated by a joystick makes it possible to raise or lower a brush inside the sole according to the nature of the soil to be vacuumed.
  • the document EP 2,687,139 A2 describes a vacuum cleaner suction head according to the preamble of claim 1 comprising a mechanism and a handle, said handle being configured to actuate said mechanism in two positions.
  • the object of the present invention is to design a suction head which makes it possible to adapt as best as possible to the nature of the surface to be suctioned, the adaptation being made by the action of a single lever in order to facilitate the use of the vacuum cleaner and the display of the position of use.
  • the first position is favorable for use on smooth floors such as a tiled, parquet or laminate surface.
  • the second position is favorable for use on carpets or rugs.
  • the third position advantageously makes it possible to force the sole to tilt in a position favoring the scraping of the surface to be vacuumed.
  • the mechanism comprises two angular stops configured to approach one towards the other when the lever is actuated from the first position to the third position, and vice versa to move during the actuation of the lever from the third position to the first position.
  • a low angular stop will be fixed and a stop high angle will be mobile, but one could consider a mechanism on which the high and low angular stops are both mobile and approach each other.
  • the purpose of these angular stops is to limit the pivoting of the fork relative to the sole, until reaching the blocking between the fork and the sole in the third position of the lever.
  • the mechanism is configured so that, in the third position of the lever, the blocking of the fork stops the latter in the tilted position towards the front with respect to the sole, which tends to lift the fork and the sleeve relative to the sole.
  • the fork is configured to ballast the sole, in particular due to the lifting of the latter and of the sleeve with respect to the sole, which forces the inclination towards the rear of said sole due to the wedging. , thus positioning it in a preferred position for scraping the surface to be vacuumed.
  • this inclination takes place at an angle of seven to ten degrees, preferably eight to nine degrees.
  • the mechanism is configured so that, in the second position of the lever, the pivoting of the fork is limited when it is tilted backwards.
  • This limitation of the pivoting and the ballasting generated by the configuration of the sole and of the sleeve also force the inclination towards the rear of the sole.
  • this inclination is carried out at an angle of one to three degrees, preferably two degrees.
  • a pivot link of transverse axis is arranged between the handle and the sole, this handle being preferably arranged on the top of the sole to facilitate its accessibility with the foot or the hand.
  • the mechanism comprises at least one upper abutment part and means for securing the abutment part to the lever, the fork comprising at least one bearing part arranged to come into contact against the at least one part. upper stop when tilting towards the rear of the fork.
  • two stop pieces high are distributed over the lateral parts of the suction head and two support parts are arranged in correspondence with said abutment parts.
  • the mechanism comprises at least one bottom stop piece, the fork comprising at least one bearing piece arranged to come into contact against the at least one bottom stop piece during tilting the fork forward.
  • the at least one lower stop piece is implemented directly by the upper part of the sole, the at least one bearing piece of the fork coming into contact against the latter.
  • the suction head which is the subject of the invention, it comprises a system for stopping the handle and the mechanism according to the three positions.
  • the stop system comprises, in addition to, or alternatively, at least one protuberance on the sole and at least one abutment plate coming into contact with said protuberance when returning to the first position of the lever and mechanism. This ensures that the brushes stop properly in the projecting position vis-à-vis the underside of the soleplate.
  • return means are configured to participate in the ascent of the at least one brush during movement of the lever from the first position to the second position.
  • the suction head comprises two brushes arranged respectively on the front side and on the rear side of the sole, each on one side of the cavity.
  • the underside of the sole includes a front part and a rear part, the rear part being inclined upwards with respect to the front part.
  • the front part is more or less parallel to the surface to be vacuumed and when the sole is tilted backwards, in the third position, the edge between the front part and the rear part is in contact with said surface.
  • the cavity is located in the front part, the rear edge of the cavity corresponding with the edge defined between said front and rear parts.
  • the suction head comprises at least one wheel arranged in the pivot axis between the fork and the sleeve, preferably two wheels.
  • the suction head comprises at least one wheel arranged in the pivot axis between the fork and the sleeve, preferably two wheels.
  • the invention also relates to a vacuum cleaner equipped with a suction head comprising one and / or the other of the aforementioned characteristics.
  • the sleeve will be connected to a suction system by means of a rigid or flexible tube, or even directly to said suction system.
  • the suction head 1 comprises a connection sleeve, referred to as sleeve 2 in the following description, at the end 2a of which is connected a tip of a rigid or flexible tube, itself connected to the suction system vacuum cleaner (not shown).
  • sleeve 2 a connection sleeve
  • the suction head 1 comprises a connection sleeve, referred to as sleeve 2 in the following description, at the end 2a of which is connected a tip of a rigid or flexible tube, itself connected to the suction system vacuum cleaner (not shown).
  • Various variants of vacuum cleaners already exist on the market and can be used with the suction head 1 according to the invention; these being known to those skilled in the art, they are not detailed in the present patent application.
  • the suction head 1 comprises a fork 3 and two wheels 4a-4b, illustrated for example in figure 12 .
  • the sleeve 2 is mounted in pivot connection with respect to the fork 3 along a transverse axis X1 preferably corresponding with the axis of rotation of the wheels 4a-4b each disposed on one side of the fork 3 and of the sleeve 2
  • a transverse axis X1 preferably corresponding with the axis of rotation of the wheels 4a-4b each disposed on one side of the fork 3 and of the sleeve 2
  • the suction head 1 comprises a sole 5, illustrated for example in figures 8 and 18 .
  • the fork 3 is mounted in a pivot connection with respect to the sole 5 along a transverse axis X2.
  • the fork 3 comprises two branches 6 and 7.
  • an external lateral part 6a of the first branch 6 comprises an orifice 8; such an orifice is also present on the external lateral part 7a of the second branch 7, although it is not visible.
  • These orifices 8 on the branches 6 and 7 pivotally receive two studs 9a-9b respectively, illustrated in figure 18 , arranged opposite two internal parts 5a-5b at the rear of the sole 5.
  • the sleeve 2 can tilt backwards or forwards relative to the fork 3, as illustrated respectively by the arrows 10a and 10b on the figure 1
  • the fork 3 can also tilt backwards or forwards relative to the sole 5, as illustrated respectively by the arrows 11a and 11b on the figure 2 .
  • the suction head 1 comprises a support piece 12 illustrated for example in figure 13 on which are mounted two brushes 13-14. These brushes 13-14 are positioned respectively on the front side 5c and on the rear side 5d of the sole 5 when said support piece 12 is mounted on said sole 5, as illustrated for example by the figures 1 and 20 .
  • the support piece 12 is mounted in slide connection on the sole 5 along an axis X3 disposed perpendicularly to the front part 15a of the underside 15 of the sole 5, as illustrated in figure 1 . When the sole 5 rests flat on the surface to be vacuumed, without any constraint, this axis X3 is more or less vertical.
  • the support piece 12 comprises two guide slots 16a-16b, illustrated in figure 13 , which respectively receive two complementary guide elements 17a-17b arranged on the upper side of the sole 5 as illustrated in the figures 8 and 18 .
  • the support piece 12 comprises two guide holes 18a-18b which receive two guide rods 19a-19b arranged on the upper side of the sole 5.
  • the axis X3 of translation between the support piece 12 and the sole 5 is also materialized on the figures 8 and 13 .
  • the suction head 1 comprises a lever 20 which actuates a mechanism 21 of which an overall view appears in Figures 1 to 7 .
  • the lever 20 is mounted in pivot connection relative to the sole 5 along a transverse axis X4, which allows it to pivot in the three positions and the movement of said mechanism 21 in three different positions.
  • the mechanism 21 comprises two parts 22-23 each arranged on a lateral side of the sole 5, as illustrated for example by figures 4 to 7 .
  • the mechanism 21 acts on the support part 12 and on the fork 3 by moving the two parts 22-23 and the transmission parts when the position of the handle 20 is changed, as detailed below.
  • the first part 22 incorporates the lever 20 and comprises a first housing 24 at an angle and a second semi-cylindrical housing 25.
  • These first and second housings 24-25 receive a first angled end 26a of a transmission bar 26, illustrated in Figure15 , which makes it possible to subject the lever 20 to this transmission bar 26.
  • This assembly appears for example in figure 19 .
  • the sole 5 includes seven rolling bearings 27a-27g of which two 27b and 27f are arranged at the upper ends of the guide rods 19a-19b and the other five (27a, 27c-27e and 27g) are arranged respectively at the ends of five legs extension 28-32.
  • These rolling bearings 27a-27g define the axis X4 and receive in rotation the transmission bar 26, as illustrated for example by figure 4 .
  • the second part 23 also comprises a first housing 33 in a square and a second semi-cylindrical housing 34 which receive a second square end 26b of the transmission bar 26, illustrated in figure 15 , which makes it possible to subject said second part 23 to the transmission bar 26 and, consequently, to the first part 22 integrating the lever 20.
  • This assembly appears for example in figure 19 .
  • the first part 22 comprises a transmission tab 35 which is provided with a light 36, as illustrated in figure 11 .
  • the second part 23 comprises a transmission tab 37 provided with a light 38, as illustrated in Figures 9 and 10 .
  • These two transmission lugs 35 and 37 are arranged respectively opposite the two angled ends 26a-26b of the transmission bar 26, on the lateral sides of the sole 5, as illustrated for example in figure 19 .
  • the support piece 12 comprises on its lateral sides 12a-12b two housings 39a-39b each receiving pivotally, along a transverse axis X5, a first part 40a of a connecting rod 40 held in pivot connection by means of a connecting pin 41.
  • the connecting rods 40 is shown on the lateral side 12b of the support piece 12 so as to leave visible the housing 39a and the connecting pin 41 on the other side 12a; it goes without saying that the connecting rod 40 will be positioned in this housing 39a before the establishment of the connecting pin 41.
  • each connecting rod 40 comprises on its second part 40b a slot 42 in which is housed the transmission lug 35 of the first part 22 on the lateral side 12b of the support part 12 and, similarly, in which is housed the transmission lug 37 of the second part 23 on the lateral side 12a of said support part 12.
  • a pin 43 illustrated in figure 14 , is housed in the hole 44 on the second part 40b of the connecting rod 40 and in the light 36 of the transmission lug 35 on the first part 22, likewise in the light 38 of the transmission lug 37 on the second part 23
  • the second parts 40b of the connecting rods 40 can pivot and slide in the respective slots 36 and 38.
  • the support piece 12 comprises two hollow cylindrical portions 45a-45b respectively having the guide holes 18a-18b, inside which are housed springs (not shown) which receive the guide rods 19a-19b and which take bearing on cross-pieces 46a-46b arranged on the upper side of the sole 5, which forces the support piece 12 upwardly with respect to the sole 5 when nothing retains said support piece 12.
  • the transmission lugs 35 and 37 make it possible, by means of the connecting rods 40, to translate the support piece 12 downwardly relative to the sole 5, which allows the brushes 13-14 to be removed and to have them projecting vis-à-vis the lower face 15.
  • the brushes 13-14 can rest on the surface S to be sucked and the lower face 15 of the sole 5 remains detached from said surface S.
  • the first part 22 comprises a stop finger 47 which is positioned under the lever 20, as illustrated in figure 11 .
  • the second part 23 comprises an abutment finger 48.
  • the branches 6-7 of the fork 3 each include an end portion 6c-7c which extends beyond the axis X2 of pivoting of said fork 3 relative to the sole 5, as illustrated in figure 12 .
  • These end portions 6c-7c each include a support finger 49-50.
  • the stop fingers 47-48 are arranged respectively in the fields of rotation of the support fingers 49-50.
  • the stop fingers 47-48 are positioned at the highest point which allows the fork 3 to tilt backwards in the direction of the arrow 11a illustrated in figure 2 , by pivoting relative to the sole 5, until the bearing fingers 49-50 come into contact with the stop fingers 47-48 as illustrated in figure 5 .
  • the fork 3 can tilt forward in the direction of the arrow 11b illustrated in figure 2 , until the supporting fingers 49-50 come in contact with two abutment pieces 51-52 arranged on the upper face 53 of the sole 5.
  • the wheels 4a-4b tend to rise from the surface S to be sucked, the mass of the fork 3, the wheels 4a-4b and the sleeve 2 then having the effect of ballasting sole 5 and tilt it backwards in the direction of arrow 54 illustrated in figure 3 , until the wheels 4a-4b are in contact with said surface S.
  • the underside 15 of the sole 5 comprises a rear part 15b which is inclined upwards relative to its front part 15a; the ballasting performed thus makes it possible to tilt the front part 15a of the sole at an angle ⁇ 1 relative to the surface S, as illustrated in figure 2 .
  • this angle ⁇ 2 corresponds less to the angle of inclination of the rear part 15b with respect to the front part 15a on the lower face 15, which makes it possible to bring said rear part 15b into contact with the surface S to be cleaned, as the figure 3 .
  • this angle ⁇ 2 is between seven degrees and ten degrees (7 ° ⁇ 1 ⁇ 10 °), preferably between eight degrees and nine degrees (8 ° ⁇ 1 ⁇ 9 °).
  • the edge 15c between the front part 15a and the rear part 15b on the underside 15 of the sole 5 makes it possible to scrape the surface S to be vacuumed.
  • This edge 15c corresponds substantially with the rear edge 55a of the cavity 55.
  • This cavity 55 communicates with a nozzle 56, as shown in the figure 20 , which is connected to the sleeve 2 by means of a flexible conduit 57 shown diagrammatically in dotted line on the figure 1 .
  • the first part 22 comprises a stop lug 58 provided with a lug 59 and the second part 23 also includes a stop lug 60 provided with a lug 61.
  • These lugs 59 and 61 are arranged facing each other when the parts 22 and 23 are mounted on the transmission bar 26.
  • the stop lugs 58 and 60 are flexible or flexible on the parts 22 and 23.
  • the extension tab 29 on the upper face 53 of the sole 5 comprises on its outer side 29a a groove 62 of circular shape.
  • the extension tab 31 comprises on its external side 31a a circular groove, not visible in the figures, but identical to the groove 62.
  • These grooves 62 each comprise an orifice 63-64 positioned more or less in the central part of said grooves 62, as illustrated in figure 8 .
  • the pins 59 and 61 are respectively housed in the grooves 62 when the parts 22-23 are mounted on the sole 5, said pins 59 and 61 coming to lightly bear in the bottom of these grooves 62. Due to the flexibility of the legs stop 58 and 60, the pins 59 and 61 penetrate inside the orifices 63-64 when these correspond, which stops the position of the parts 22-23 and, consequently, that of the lever 20. The lever 20 and the mechanism are in second position in this configuration.
  • the flexibility of the stop tabs 58 and 60 allows the lugs 59 and 61 to be released outside the orifices 63-64, thus allowing actuation of the mechanism 21 and of the lever 20.
  • the pins 59 and 61 then move in the respective grooves 62 until they come, in one direction, into abutment against the first ends 62a of said grooves 62 where the lever 20 and the mechanism 21 have reaches the first position or, in the other direction, in abutment against the second ends 62b of said grooves 62 where the lever 20 and the mechanism 21 have reached the third position.
  • parts 22-23 each include a stop plate 65-66.
  • the extension tabs 28 and 32 on the sole 5 include on their external sides 28a and 32a protrusions 67-68.
  • the stop plates 65-66 respectively come to bear on these protuberances 68-67, as illustrated by the Figures 4 and 5 .
  • These abutment plates 65-66 and protrusions 68-67 ensure an adequate distribution of the forces over the width of the sole 5, in association with the grooves 62 and lugs 59 and 61, when the lever 20 returns to the first position.
  • the second part 23 comprises a tab 69 provided with a protuberance 70 on its external side 69a, said protuberance 70 coming to bear against the internal side 28b of the extension tab 28 on the sole 5, as illustrated in FIG. figure 7 .
  • the suction head 1 also includes a stop piece 71 illustrated in figure 17 , which is fixed to the sole 5 and which includes a groove 72 in which comes place the rear brush 14, as illustrated in figure 19 .
  • a stop piece 71 illustrated in figure 17 which is fixed to the sole 5 and which includes a groove 72 in which comes place the rear brush 14, as illustrated in figure 19 .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Motorcycle And Bicycle Frame (AREA)

Description

Domaine techniqueTechnical area

La présente invention concerne le domaine des aspirateurs équipés d'une tête de succion permettant d'aspirer les poussières et les déchets de faible granulométrie présents sur une surface. L'invention vise à concevoir une tête de succion adaptable facilement selon la nature de la surface à aspirer.The present invention relates to the field of vacuum cleaners equipped with a suction head for sucking dust and small particle size waste present on a surface. The invention aims to design a suction head easily adaptable according to the nature of the surface to be sucked.

Etat de la techniqueState of the art

Les aspirateurs équipés d'une tête de succion 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.Vacuums 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 small particle size waste resting thereon.

La surface à aspirer peut être par exemple du carrelage, du parquet, du stratifié, de la moquette ou un tapis. Il convient donc de pouvoir adapter au mieux la tête de succion balayant la surface en fonction de la nature de celle-ci.The surface to be vacuumed can be for example tiles, parquet, laminate, carpet or a carpet. It is therefore necessary to be able to best adapt the suction head sweeping the surface as a function of the nature thereof.

La tête de succion comprend traditionnellement un manchon de raccordement et une semelle, laquelle comprend une face inférieure avec une cavité s'étendant transversalement sur la tête, ladite cavité communiquant avec ledit manchon par l'intermédiaire d'un conduit rigide ou flexible. La face inférieure de la semelle est positionnée de manière attenante à la surface à aspirer durant l'utilisation de la tête de succion.The suction head traditionally comprises a connection sleeve and a sole, which comprises a bottom face with a cavity extending transversely on the head, said cavity communicating with said sleeve via a rigid or flexible conduit. The underside of the soleplate is positioned adjacent to the surface to be vacuumed during use of the suction head.

Il est connu les documents FR2442617A1 , FR2439577 , FR2967042A1 , EP3047776 et CN205585956 permettant une adaptation de la tête de succion selon la nature de la surface à aspirer.It is known documents FR2442617A1 , FR2439577 , FR2967042A1 , EP3047776 and CN205585956 allowing adaptation of the suction head according to the nature of the surface to be vacuumed.

Dans la demande de brevet FR2442617A1 , la tête de succion comprend un jeu de deux brosses disposées à l'avant et à l'arrière de la semelle, chacune d'un côté de la cavité. Un mécanisme actionné par une manette permet de définir trois positions du jeu de deux brosses. Selon une première position de la manette, favorable à une utilisation sur de la moquette à poils longs, le mécanisme remonte les brosses en retrait vis-à-vis de la face inférieure de la semelle qui repose ainsi sur la surface aspirée. Selon une seconde position de la manette, favorable à une utilisation sur sols durs, le mécanisme descend les brosses en saillie vis-à-vis de ladite face inférieure qui est ainsi décollée de la surface aspirée, les brosses étant au contact de ladite surface. Selon une troisième position de la manette, favorable à une utilisation sur de la moquette compacte ou à poils courts, le mécanisme incline le jeu de brosses par rapport à ladite face inférieure, la brosse arrière se trouvant en saillie vis-à-vis de celle-ci et la brosse avant en retrait.In the patent application FR2442617A1 , the suction head comprises a set of two brushes arranged at the front and at the rear of the sole, each on one side of the cavity. A mechanism activated by a joystick makes it possible to define three positions of the set of two brushes. According to a first position of the handle, favorable for use on long pile carpet, the mechanism raises the brushes back with respect to the underside of the sole which thus rests on the suctioned surface. According to a second position of the handle, favorable for use on hard floors, the mechanism descends the brushes projecting from said lower face which is thus detached from the suctioned surface, the brushes being in contact with said surface. According to a third position of the handle, favorable for use on compact or short-pile carpet, the mechanism inclines the set of brushes relative to said underside, the rear brush being projecting from that -this and the brush back before.

Dans la demande de brevet FR2439577A1 , la semelle et le manchon de raccordement de la tête de succion communiquent entre eux par le biais d'un tube rigide en forme de fourche. Le tube est articulé, d'une part, avec le manchon au niveau de l'axe des roues d'appui sur la surface à aspirer et, d'autre part, avec la semelle au niveau d'un axe parallèle à l'axe des roues. La tête de succion comprend un mécanisme actionné par une manette, permettant de mettre en saillie ou en retrait un jeu de deux brosses vis-à-vis de la face inférieure de la semelle, en le descendant ou en le montant. Une des brosses est disposée à l'avant de la semelle et l'autre à l'arrière, chacune d'un côté de la cavité.In the patent application FR2439577A1 , the sole and the connecting sleeve of the suction head communicate with each other by means of a rigid fork-shaped tube. The tube is articulated, on the one hand, with the sleeve at the axis of the support wheels on the surface to be vacuumed and, on the other hand, with the soleplate at the level of an axis parallel to the axis wheels. The suction head comprises a mechanism actuated by a lever, making it possible to project or withdraw a set of two brushes vis-à-vis the underside of the soleplate, by lowering or raising it. One of the brushes is arranged at the front of the sole and the other at the rear, each on one side of the cavity.

Dans la demande de brevet FR2967042 , la semelle et le manchon de raccordement de la tête de succion sont en liaison par l'intermédiaire d'une bielle montée en liaison pivot, d'une part, avec la semelle selon un première axe et, d'autre part, avec le manchon selon un second axe, lesdits axes étant parallèles entre eux et avec l'axe de rotation de roues d'appui sur la surface à aspirer. La semelle comprend deux butées angulaires et la bielle comprend à son extrémité avant un bras qui vient en contact contre les butées angulaires lors d'un pivotement vers le haut ou vers le bas de la semelle par rapport à la bielle. La semelle comprend sur sa face inférieure deux arêtes disposées respectivement à l'avant et à l'arrière de la cavité. Lors d'un mouvement d'avance de la tête de succion, le bras vient en contact de la butée angulaire supérieure, ce qui met en contact l'arête avant sur la surface à aspirer tandis que l'arête arrière est légèrement décollée de cette surface. Inversement, lors d'un mouvement de recul de la tête de succion, le bras vient en contact contre la butée angulaire inférieure, ce qui met en contact l'arête arrière sur la surface à aspirer tandis que l'arête avant est légèrement décollée de cette surface. Le contact d'une arête avec ladite surface permet de la gratter et, inversement, le décollement de l'arête vis-à-vis de celle-ci permet de laisser pénétrer un flux d'air dans la cavité. Dans la demande de brevet EP3047776A1 , la semelle et le manchon de raccordement de la tête de succion sont reliés par l'intermédiaire d'une articulation permettant un débattement angulaire entre lesdites pièces. Des roulettes sont rapportées à l'arrière du manchon. Lorsque la tête de succion est poussée vers l'avant, les roulettes sont soulevées de la surface à aspirer et inversement lorsque l'on tire ladite tête vers l'arrière. Un mécanisme actionné par une manette permet de monter ou descendre deux brosses disposées respectivement à l'avant et à l'arrière de la cavité, afin qu'elles soient saillantes ou en retrait vis-à-vis de la face inférieure de la semelle en fonction de la nature de la surface.In the patent application FR2967042 , the sole and the connection sleeve of the suction head are connected by means of a connecting rod mounted in pivot connection, on the one hand, with the sole on a first axis and, on the other hand, with the sleeve along a second axis, said axes being parallel to each other and with the axis of rotation of support wheels on the surface to be vacuumed. The sole includes two angular stops and the connecting rod comprises at its front end an arm which comes into contact against the angular stops during a pivoting up or down of the sole relative to the connecting rod. The sole comprises on its underside two edges disposed respectively at the front and at the rear of the cavity. During a forward movement of the suction head, the arm comes into contact with the upper angular stop, which brings the front edge into contact with the surface to be suctioned while the rear edge is slightly detached from this surface. Conversely, during a backward movement of the suction head, the arm comes into contact against the lower angular stop, which brings the rear edge into contact with the surface to be suctioned while the front edge is slightly detached from this surface. The contact of an edge with said surface makes it possible to scrape it and, conversely, the detachment of the edge with respect to it makes it possible to allow an air flow to enter the cavity. In the patent application EP3047776A1 , the sole and the connection sleeve of the suction head are connected by means of an articulation allowing an angular movement between said parts. Casters are attached to the back of the sleeve. When the suction head is pushed forward, the rollers are lifted from the surface to be vacuumed and vice versa when the said head is pulled back. A mechanism actuated by a lever makes it possible to raise or lower two brushes arranged respectively at the front and at the rear of the cavity, so that they are protruding or recessed with respect to the underside of the sole in depending on the nature of the surface.

Dans la demande CN205585956 , la semelle et le manchon de raccordement de la tête de succion sont reliés par l'intermédiaire d'une pièce d'accouplement permettant un débattement angulaire entre lesdites pièces. La pièce d'accouplement est en liaison pivot par rapport à la semelle et comprend une lumière recevant un tourillon, agencé sur le manchon, qui pivote dans cette lumière et coulisse le long de celle-ci. Un mécanisme actionné par une manette permet de monter ou descendre une brosse à l'intérieur de la semelle en fonction de la nature du sol à aspirer. Le document EP 2 687 139 A2 décrit une tête de succion d'aspirateur selon le préambule de la revendication 1 comprenant un mécanisme et une manette, ladite manette étant configurée pour actionner ledit mécanisme selon deux positions.In the request CN205585956 , the sole and the connection sleeve of the suction head are connected by means of a coupling part allowing an angular clearance between said parts. The coupling part is in pivot connection relative to the sole and comprises a light receiving a pin, arranged on the sleeve, which pivots in this light and slides along it. A mechanism actuated by a joystick makes it possible to raise or lower a brush inside the sole according to the nature of the soil to be vacuumed. The document EP 2,687,139 A2 describes a vacuum cleaner suction head according to the preamble of claim 1 comprising a mechanism and a handle, said handle being configured to actuate said mechanism in two positions.

Résumé de l'inventionSummary of the invention

La présente invention a pour objectif de concevoir une tête de succion permettant de s'adapter au mieux à la nature de la surface à aspirer, l'adaptation se faisant par l'action d'une seule manette afin de faciliter l'utilisation de l'aspirateur et la visualisation de la position d'utilisation.The object of the present invention is to design a suction head which makes it possible to adapt as best as possible to the nature of the surface to be suctioned, the adaptation being made by the action of a single lever in order to facilitate the use of the vacuum cleaner and the display of the position of use.

A cet effet, l'invention concerne une tête de succion d'aspirateur qui comprend :

  • une semelle munie d'une face inférieure et d'une cavité débouchant sur cette face inférieure ;
  • au moins une brosse qui s'étend transversalement sur la semelle ;
  • un manchon de raccordement configuré pour communiquer avec la cavité par l'intermédiaire d'un tube flexible ;
  • une fourche agencée entre la semelle et le manchon et montée en liaisons pivots d'axes transversaux vis-à-vis de ladite semelle et dudit manchon.
To this end, the invention relates to a suction head for a vacuum cleaner which comprises:
  • a sole provided with a lower face and a cavity opening onto this lower face;
  • at least one brush which extends transversely over the sole;
  • a connection sleeve configured to communicate with the cavity via a flexible tube;
  • a fork arranged between the sole and the sleeve and mounted in pivot connections of transverse axes with respect to said sole and said sleeve.

En outre, selon l'invention, la tête de succion comprend un mécanisme et une manette, ladite manette étant configurée pour actionner ledit mécanisme selon trois positions, ledit mécanisme étant configuré pour :

  • dans la première position, descendre l'au moins une brosse et la positionner en saillie sur la face inférieure en laissant pivoter la fourche par rapport à la semelle ;
  • dans la seconde position, monter l'au moins une brosse et la positionner en retrait de la face inférieure en laissant pivoter la fourche par rapport à la semelle ;
  • dans la troisième position, maintenir l'au moins une brosse en retrait de la face inférieure en bloquant la fourche vis-à-vis de la semelle.
Furthermore, according to the invention, the suction head comprises a mechanism and a handle, said handle being configured to actuate said mechanism in three positions, said mechanism being configured to:
  • in the first position, lower the at least one brush and position it projecting on the underside while allowing the fork to pivot relative to the sole;
  • in the second position, mount the at least one brush and position it back from the underside while allowing the fork to pivot relative to the sole;
  • in the third position, maintain the at least one brush set back from the underside by blocking the fork vis-à-vis the sole.

La première position est favorable à une utilisation sur des sols lisses tels qu'une surface carrelée, parquetée ou stratifiée. La seconde position est favorable à une utilisation sur de la moquette ou un tapis. La troisième position permet avantageusement de contraindre la semelle à s'incliner dans une position favorisant le grattage de la surface à aspirer. Ces différentes positions sont obtenues simplement en actionnant la manette, ce qui facilite grandement l'utilisation de la tête de succion.The first position is favorable for use on smooth floors such as a tiled, parquet or laminate surface. The second position is favorable for use on carpets or rugs. The third position advantageously makes it possible to force the sole to tilt in a position favoring the scraping of the surface to be vacuumed. These different positions are obtained simply by actuating the lever, which greatly facilitates the use of the suction head.

Dans une réalisation de la tête de succion selon l'invention, le mécanisme comprend deux butées angulaires configurées pour se rapprocher l'une vis-à-vis de l'autre lors de l'actionnement de la manette de la première position jusqu'à la troisième position, et inversement pour s'écarter lors de l'actionnement de la manette de la troisième position jusqu'à la première position. Dans une réalisation préférentielle, une butée angulaire basse sera fixe et une butée angulaire haute sera mobile, mais on pourrait envisager un mécanisme sur lequel les butées angulaires haute et basse sont toutes les deux mobiles et se rapprochent l'une de l'autre. Ces butées angulaires ont pour but de limiter le pivotement de la fourche par rapport à la semelle, jusqu'à atteindre le blocage entre la fourche et la semelle dans la troisième position de la manette.In an embodiment of the suction head according to the invention, the mechanism comprises two angular stops configured to approach one towards the other when the lever is actuated from the first position to the third position, and vice versa to move during the actuation of the lever from the third position to the first position. In a preferred embodiment, a low angular stop will be fixed and a stop high angle will be mobile, but one could consider a mechanism on which the high and low angular stops are both mobile and approach each other. The purpose of these angular stops is to limit the pivoting of the fork relative to the sole, until reaching the blocking between the fork and the sole in the third position of the lever.

Dans une réalisation de la tête de succion selon l'invention, le mécanisme est configuré pour que, dans la troisième position de la manette, le blocage de la fourche cale celle-ci en position basculée vers l'avant vis-à-vis de la semelle, ce qui tend à soulever la fourche et le manchon par rapport à la semelle. En outre, la fourche est configurée pour lester la semelle, notamment du fait du soulèvement de celle-ci et du manchon vis-à-vis de la semelle, ce qui force l'inclinaison vers l'arrière de ladite semelle du fait du calage, la positionnant ainsi dans une position préférentielle de grattage de la surface à aspirer. De préférence, cette inclinaison s'effectue d'un angle de sept à dix degrés, préférentiellement de huit à neuf degrés.In an embodiment of the suction head according to the invention, the mechanism is configured so that, in the third position of the lever, the blocking of the fork stops the latter in the tilted position towards the front with respect to the sole, which tends to lift the fork and the sleeve relative to the sole. In addition, the fork is configured to ballast the sole, in particular due to the lifting of the latter and of the sleeve with respect to the sole, which forces the inclination towards the rear of said sole due to the wedging. , thus positioning it in a preferred position for scraping the surface to be vacuumed. Preferably, this inclination takes place at an angle of seven to ten degrees, preferably eight to nine degrees.

Dans une réalisation de la tête de succion selon l'invention, le mécanisme est configuré pour que, dans la seconde position de la manette, le pivotement de la fourche soit limité lors de son basculement vers l'arrière. Cette limitation du pivotement et le lestage généré par la configuration de la semelle et du manchon forcent également l'inclinaison vers l'arrière de la semelle. De préférence, cette inclinaison s'effectue d'un angle d'un à trois degrés, préférentiellement de deux degrés.In one embodiment of the suction head according to the invention, the mechanism is configured so that, in the second position of the lever, the pivoting of the fork is limited when it is tilted backwards. This limitation of the pivoting and the ballasting generated by the configuration of the sole and of the sleeve also force the inclination towards the rear of the sole. Preferably, this inclination is carried out at an angle of one to three degrees, preferably two degrees.

Selon la tête de succion objet de l'invention, une liaison pivot d'axe transversal est agencée entre la manette et la semelle, cette manette étant préférentiellement agencée sur le dessus de la semelle pour faciliter son accessibilité avec le pied ou la main. En outre, le mécanisme comprend au moins une pièce de butée haute et des moyens d'assujettissement de la pièce de butée à la manette, la fourche comprenant au moins une pièce d'appui agencée pour venir en contact contre l'au moins une pièce de butée haute lors d'un basculement vers l'arrière de la fourche. De préférence, deux pièces de butée haute sont réparties sur les parties latérales de la tête de succion et deux pièces d'appui sont agencées en correspondance avec lesdites pièces de butée.According to the suction head object of the invention, a pivot link of transverse axis is arranged between the handle and the sole, this handle being preferably arranged on the top of the sole to facilitate its accessibility with the foot or the hand. In addition, the mechanism comprises at least one upper abutment part and means for securing the abutment part to the lever, the fork comprising at least one bearing part arranged to come into contact against the at least one part. upper stop when tilting towards the rear of the fork. Preferably two stop pieces high are distributed over the lateral parts of the suction head and two support parts are arranged in correspondence with said abutment parts.

Selon la tête de succion objet de l'invention, le mécanisme comprend au moins une pièce de butée basse, la fourche comprenant au moins une pièce d'appui agencée pour venir en contact contre l'au moins une pièce de butée basse lors d'un basculement vers l'avant de la fourche. De préférence, deux pièces de butée basse sont réparties sur les parties latérales de la tête de succion et deux pièces d'appui sont agencées en correspondance avec lesdites pièces de butée. De préférence, l'au moins une pièce de butée basse est mise en œuvre directement par la partie supérieure de la semelle, l'au moins une pièce d'appui de la fourche venant en contact contre celle-ci.According to the suction head that is the subject of the invention, the mechanism comprises at least one bottom stop piece, the fork comprising at least one bearing piece arranged to come into contact against the at least one bottom stop piece during tilting the fork forward. Preferably, two lower stop pieces are distributed over the lateral parts of the suction head and two support pieces are arranged in correspondence with said stop pieces. Preferably, the at least one lower stop piece is implemented directly by the upper part of the sole, the at least one bearing piece of the fork coming into contact against the latter.

Selon la tête de succion objet de l'invention, une liaison pivot d'axe transversal est agencée entre la manette et la semelle, la même que celle définie précédemment. En outre, le mécanisme comprend :

  • au moins une patte de transmission munie d'une lumière et des moyens d'assujettissement de ladite patte de transmission à la manette ;
  • au moins une bielle munie d'une partie supérieure recevant un tourillon qui est logé dans ladite lumière ;
  • une pièce de support de l'au moins une brosse, ladite pièce étant montée en liaison glissière sur la semelle selon un axe perpendiculaire à la face inférieure de ladite semelle, la bielle étant munie d'une partie inférieure montée à pivotement vis-à-vis de ladite pièce de support.
According to the suction head object of the invention, a pivot link of transverse axis is arranged between the lever and the sole, the same as that defined above. In addition, the mechanism includes:
  • at least one transmission tab provided with a light and means for securing said transmission tab to the lever;
  • at least one connecting rod provided with an upper part receiving a pin which is housed in said lumen;
  • a support part of the at least one brush, said part being mounted in sliding connection on the sole along an axis perpendicular to the underside of said sole, the connecting rod being provided with a lower part pivotally mounted vis-à-vis screw of said support piece.

Selon la tête de succion objet de l'invention, celle-ci comprend un système d'arrêt de la manette et du mécanisme selon les trois positions.According to the suction head which is the subject of the invention, it comprises a system for stopping the handle and the mechanism according to the three positions.

Dans une réalisation de la tête de succion, une liaison pivot d'axe transversal est agencée entre la manette et la semelle, la même que celle définie précédemment. En outre, le système d'arrêt précité comprend :

  • une patte d'arrêt et des moyens d'assujettissement de ladite patte d'arrêt à la manette, la patte d'arrêt comprenant un ergot monté souple notamment grâce à la flexibilité de cette patte ;
  • une rainure circulaire agencée sur la semelle dans laquelle vient se loger l'ergot, ladite rainure comprenant un orifice configuré pour recevoir l'ergot dans la seconde position de la manette, ledit ergot venant en butée contre les extrémités de la rainure dans les première et troisième positions de la manette.
In an embodiment of the suction head, a pivot link of transverse axis is arranged between the lever and the sole, the same as that defined above. In addition, the aforementioned shutdown system includes:
  • a stop tab and means for securing said stop tab to the lever, the stop tab comprising a lug mounted flexible in particular thanks to the flexibility of this tab;
  • a circular groove arranged on the sole in which the lug is housed, said groove comprising an orifice configured to receive the lug in the second position of the lever, said lug abutting against the ends of the groove in the first and third position of the joystick.

Dans une réalisation de la tête de succion, le système d'arrêt comprend en complément, ou en variante, au moins une protubérance sur la semelle et au moins une plaque de butée venant en contact avec ladite protubérance lors du retour en première position de la manette et du mécanisme. Cela garantit un arrêt convenable des brosses en position saillante vis-à-vis de la face inférieure de la semelle.In one embodiment of the suction head, the stop system comprises, in addition to, or alternatively, at least one protuberance on the sole and at least one abutment plate coming into contact with said protuberance when returning to the first position of the lever and mechanism. This ensures that the brushes stop properly in the projecting position vis-à-vis the underside of the soleplate.

Selon la tête de succion objet de l'invention, des moyens de rappel sont configurés pour participer à la remontée de l'au moins une brosse lors du déplacement de la manette de la première position vers la seconde position.According to the suction head object of the invention, return means are configured to participate in the ascent of the at least one brush during movement of the lever from the first position to the second position.

Dans une réalisation préférentielle, la tête de succion comprend deux brosses agencées respectivement du côté avant et du côté arrière de la semelle, chacune d'un côté de la cavité.In a preferred embodiment, the suction head comprises two brushes arranged respectively on the front side and on the rear side of the sole, each on one side of the cavity.

Selon la tête de succion objet de l'invention, la face inférieure de la semelle comprend une partie avant et une partie arrière, la partie arrière étant inclinée vers le haut vis-à-vis de la partie avant. Ainsi, lorsque la semelle est en position normale, la partie avant est plus ou moins parallèle à la surface à aspirer et lorsque la semelle est basculée vers l'arrière, dans la troisième position, l'arête entre la partie avant et la partie arrière est au contact de ladite surface. De préférence, la cavité est située dans la partie avant, le bord arrière de la cavité correspondant avec l'arête définie entre lesdites parties avant et arrière.According to the suction head object of the invention, the underside of the sole includes a front part and a rear part, the rear part being inclined upwards with respect to the front part. Thus, when the sole is in the normal position, the front part is more or less parallel to the surface to be vacuumed and when the sole is tilted backwards, in the third position, the edge between the front part and the rear part is in contact with said surface. Preferably, the cavity is located in the front part, the rear edge of the cavity corresponding with the edge defined between said front and rear parts.

Selon l'invention, la tête de succion comprend au moins une roue disposée dans l'axe de pivotement entre la fourche et le manchon, de préférence deux roues. On pourrait envisager de décaler légèrement l'axe de l'au moins une roue vis-à-vis de l'axe de pivotement entre la fourche et le manchon, selon les formes des éléments de ladite tête de succion.According to the invention, the suction head comprises at least one wheel arranged in the pivot axis between the fork and the sleeve, preferably two wheels. One could consider slightly shifting the axis of the at least one wheel with respect to the pivot axis between the fork and the sleeve, according to the shapes of the elements of said suction head.

L'invention concerne également un aspirateur équipé d'une tête de succion comprenant l'une et/ou l'autre des caractéristiques précitées. Le manchon sera raccordé à un système d'aspiration par le biais d'un tube rigide ou flexible, voire directement audit système d'aspiration.The invention also relates to a vacuum cleaner equipped with a suction head comprising one and / or the other of the aforementioned characteristics. The sleeve will be connected to a suction system by means of a rigid or flexible tube, or even directly to said suction system.

Brève description des figuresBrief description of the figures

Les caractéristiques et avantages de l'invention apparaîtront à la lecture de la description suivante d'un mode de réalisation de la tête de succion s'appuyant sur des figures, parmi lesquelles :

  • les figures 1 à 3 illustrent les trois positions de la manette et d'une partie du mécanisme de la tête de succion ;
  • les figures 4 à 7 illustrent les trois positions de la manette et d'une autre partie du mécanisme de la tête de succion ;
  • la figure 8 illustre la semelle ;
  • les figures 9 et 10 illustrent deux vues d'une première pièce du mécanisme ;
  • la figure 11 illustre une seconde pièce du mécanisme intégrant la manette ;
  • la figure 12 illustre la fourche assemblée avec le manchon de raccordement et avec deux roues ;
  • la figure 13 illustre une pièce de support de deux brosses ;
  • la figure 14 illustre la tête de succion avec la manette en seconde position ;
  • la figure 15 illustre une barre de transmission du mécanisme servant à entraîner la rotation simultanée des première et seconde pièces illustrées aux figures 9 à 11 ;
  • la figure 16 illustre une bielle du mécanisme ;
  • la figure 17 illustre une pièce d'arrêt de la fourche ;
  • la figure 18 illustre une autre vue de la semelle de la figure 8 ;
  • la figure 19 illustre partiellement la tête de succion dans la première position, ladite figure mettant en évidence la position de la pièce d'arrêt de la figure 17 vis-à-vis de la fourche ;
  • la figure 20 illustre la tête de succion en vue de dessous, ladite figure mettant en évidence la face inférieure de la semelle et la présence de la cavité.
The characteristics and advantages of the invention will appear on reading the following description of an embodiment of the suction head based on figures, among which:
  • the Figures 1 to 3 illustrate the three positions of the handle and part of the suction head mechanism;
  • the figures 4 to 7 illustrate the three positions of the handle and another part of the suction head mechanism;
  • the figure 8 illustrates the sole;
  • the Figures 9 and 10 illustrate two views of a first part of the mechanism;
  • the figure 11 illustrates a second part of the mechanism integrating the lever;
  • the figure 12 illustrates the fork assembled with the connection sleeve and with two wheels;
  • the figure 13 illustrates a support piece of two brushes;
  • the figure 14 illustrates the suction head with the handle in second position;
  • the figure 15 illustrates a mechanism transmission bar used to drive the simultaneous rotation of the first and second parts illustrated in figures 9 to 11 ;
  • the figure 16 illustrates a connecting rod of the mechanism;
  • the figure 17 illustrates a stop piece of the fork;
  • the figure 18 illustrates another view of the sole of the figure 8 ;
  • the figure 19 partially illustrates the suction head in the first position, said figure highlighting the position of the stop piece of the figure 17 vis-à-vis the fork;
  • the figure 20 illustrates the suction head in bottom view, said figure highlighting the underside of the sole and the presence of the cavity.

Description détailléedetailed description

Tel qu'illustré par exemple sur les figures 1 à 3, la tête de succion 1 comprend un manchon de raccordement, dénommé manchon 2 dans la suite de la description, à l'extrémité 2a duquel vient se raccorder un embout d'un tube rigide ou flexible, lui-même raccordé au système d'aspiration de l'aspirateur (non illustré). Diverses variantes d'aspirateurs existent déjà sur le marché et pourront être utilisées avec la tête de succion 1 selon l'invention ; celles-ci étant connues de l'homme du métier, elles ne sont pas détaillées dans la présente demande de brevet.As illustrated for example on Figures 1 to 3 , the suction head 1 comprises a connection sleeve, referred to as sleeve 2 in the following description, at the end 2a of which is connected a tip of a rigid or flexible tube, itself connected to the suction system vacuum cleaner (not shown). Various variants of vacuum cleaners already exist on the market and can be used with the suction head 1 according to the invention; these being known to those skilled in the art, they are not detailed in the present patent application.

La tête de succion 1 comprend une fourche 3 et deux roues 4a-4b, illustrées par exemple en figure 12. Le manchon 2 est monté en liaison pivot vis-à-vis de la fourche 3 selon un axe X1 transversal correspondant de préférence avec l'axe de rotation des roues 4a-4b disposées chacune d'un côté de la fourche 3 et du manchon 2. On pourrait toutefois prévoir des variantes de tête de succion 1 selon l'invention avec un léger décalage de l'axe de rotation des roues 4a-4b vers le bas et/ou vers l'arrière vis-à-vis de l'axe X1 de pivotement entre la fourche 3 et le manchon 2.The suction head 1 comprises a fork 3 and two wheels 4a-4b, illustrated for example in figure 12 . The sleeve 2 is mounted in pivot connection with respect to the fork 3 along a transverse axis X1 preferably corresponding with the axis of rotation of the wheels 4a-4b each disposed on one side of the fork 3 and of the sleeve 2 However, it is possible to provide variants of suction head 1 according to the invention with a slight offset of the axis of rotation of the wheels 4a-4b downwards and / or rearwards with respect to the axis. Pivot X1 between the fork 3 and the sleeve 2.

La tête de succion 1 comprend une semelle 5, illustrée par exemple en figures 8 et 18. La fourche 3 est montée en liaison pivot vis-à-vis de la semelle 5 selon un axe X2 transversal. Pour cela, la fourche 3 comprend deux branches 6 et 7. On remarque sur la figure 12 qu'une partie latérale externe 6a de la première branche 6 comprend un orifice 8 ; un tel orifice est également présent sur la partie latérale externe 7a de la seconde branche 7, bien qu'il ne soit pas visible. Ces orifices 8 sur les branches 6 et 7 reçoivent à pivotement respectivement deux plots 9a-9b, illustrés en figure 18, agencés en regard de deux parties internes 5a-5b à l'arrière de la semelle 5.The suction head 1 comprises a sole 5, illustrated for example in figures 8 and 18 . The fork 3 is mounted in a pivot connection with respect to the sole 5 along a transverse axis X2. For this, the fork 3 comprises two branches 6 and 7. We note on the figure 12 that an external lateral part 6a of the first branch 6 comprises an orifice 8; such an orifice is also present on the external lateral part 7a of the second branch 7, although it is not visible. These orifices 8 on the branches 6 and 7 pivotally receive two studs 9a-9b respectively, illustrated in figure 18 , arranged opposite two internal parts 5a-5b at the rear of the sole 5.

Ainsi, le manchon 2 peut basculer vers l'arrière ou vers l'avant par rapport à la fourche 3, comme l'illustrent respectivement les flèches 10a et 10b sur la figure 1, et la fourche 3 peut également basculer vers l'arrière ou vers l'avant par rapport à la semelle 5, comme l'illustrent respectivement les flèches 11a et 11b sur la figure 2.Thus, the sleeve 2 can tilt backwards or forwards relative to the fork 3, as illustrated respectively by the arrows 10a and 10b on the figure 1 , and the fork 3 can also tilt backwards or forwards relative to the sole 5, as illustrated respectively by the arrows 11a and 11b on the figure 2 .

La tête de succion 1 comprend une pièce de support 12 illustrée par exemple en figure 13 sur laquelle sont montées deux brosses 13-14. Ces brosses 13-14 sont positionnées respectivement du côté avant 5c et du côté arrière 5d de la semelle 5 lorsque ladite pièce de support 12 est montée sur ladite semelle 5, comme l'illustrent par exemple les figures 1 et 20. La pièce de support 12 est montée en liaison glissière sur la semelle 5 selon un axe X3 disposé perpendiculairement à la partie avant 15a de la face inférieure 15 de la semelle 5, comme l'illustre la figure 1. Lorsque la semelle 5 repose à plat sur la surface à aspirer, sans aucune contrainte, cet axe X3 est plus ou moins vertical. La pièce de support 12 comprend deux fentes de guidage 16a-16b, illustrées en figure 13, qui reçoivent respectivement deux éléments de guidage 17a-17b complémentaires agencés sur le côté supérieur de la semelle 5 tels qu'illustrés sur les figures 8 et 18. De même, la pièce de support 12 comprend deux trous de guidage 18a-18b qui reçoivent deux tiges de guidage 19a-19b agencées sur le côté supérieur de la semelle 5. L'axe X3 de translation entre la pièce de support 12 et la semelle 5 est également matérialisé sur les figures 8 et 13.The suction head 1 comprises a support piece 12 illustrated for example in figure 13 on which are mounted two brushes 13-14. These brushes 13-14 are positioned respectively on the front side 5c and on the rear side 5d of the sole 5 when said support piece 12 is mounted on said sole 5, as illustrated for example by the figures 1 and 20 . The support piece 12 is mounted in slide connection on the sole 5 along an axis X3 disposed perpendicularly to the front part 15a of the underside 15 of the sole 5, as illustrated in figure 1 . When the sole 5 rests flat on the surface to be vacuumed, without any constraint, this axis X3 is more or less vertical. The support piece 12 comprises two guide slots 16a-16b, illustrated in figure 13 , which respectively receive two complementary guide elements 17a-17b arranged on the upper side of the sole 5 as illustrated in the figures 8 and 18 . Similarly, the support piece 12 comprises two guide holes 18a-18b which receive two guide rods 19a-19b arranged on the upper side of the sole 5. The axis X3 of translation between the support piece 12 and the sole 5 is also materialized on the figures 8 and 13 .

La tête de succion 1 comprend une manette 20 qui actionne un mécanisme 21 dont une vue d'ensemble apparaît en figures 1 à 7. La manette 20 est montée en liaison pivot par rapport à la semelle 5 selon un axe X4 transversal, ce qui permet son pivotement selon les trois positions et le déplacement dudit mécanisme 21 selon trois positions différentes.The suction head 1 comprises a lever 20 which actuates a mechanism 21 of which an overall view appears in Figures 1 to 7 . The lever 20 is mounted in pivot connection relative to the sole 5 along a transverse axis X4, which allows it to pivot in the three positions and the movement of said mechanism 21 in three different positions.

Le mécanisme 21 comprend deux pièces 22-23 disposées chacune d'un côté latéral de la semelle 5, comme l'illustrent par exemple les figures 4 à 7. Le mécanisme 21 agit sur la pièce de support 12 et sur la fourche 3 en déplaçant les deux pièces 22-23 et des pièces de transmission lors d'un changement de position de la manette 20, comme cela est détaillé ci-après.The mechanism 21 comprises two parts 22-23 each arranged on a lateral side of the sole 5, as illustrated for example by figures 4 to 7 . The mechanism 21 acts on the support part 12 and on the fork 3 by moving the two parts 22-23 and the transmission parts when the position of the handle 20 is changed, as detailed below.

Tel qu'illustré en figure 11, la première pièce 22 intègre la manette 20 et comprend un premier logement 24 en équerre et un second logement 25 semi-cylindrique. Ces premier et second logements 24-25 reçoivent une première extrémité en équerre 26a d'une barre de transmission 26, illustrée en figure15, ce qui permet d'assujettir la manette 20 à cette barre de transmission 26. Cet assemblage apparaît par exemple en figure 19.As illustrated in figure 11 , the first part 22 incorporates the lever 20 and comprises a first housing 24 at an angle and a second semi-cylindrical housing 25. These first and second housings 24-25 receive a first angled end 26a of a transmission bar 26, illustrated in Figure15 , which makes it possible to subject the lever 20 to this transmission bar 26. This assembly appears for example in figure 19 .

Tel qu'illustré par exemple en figure 8, la semelle 5 comprend sept paliers de roulement 27a-27g dont deux 27b et 27f sont agencés aux extrémités supérieures des tiges de guidage 19a-19b et les cinq autres (27a, 27c-27e et 27g) sont agencés respectivement aux extrémités de cinq pattes d'extension 28-32. Ces paliers de roulement 27a-27g définissent l'axe X4 et reçoivent en rotation la barre de transmission 26, comme l'illustre par exemple la figure 4.As illustrated for example in figure 8 , the sole 5 includes seven rolling bearings 27a-27g of which two 27b and 27f are arranged at the upper ends of the guide rods 19a-19b and the other five (27a, 27c-27e and 27g) are arranged respectively at the ends of five legs extension 28-32. These rolling bearings 27a-27g define the axis X4 and receive in rotation the transmission bar 26, as illustrated for example by figure 4 .

Tel qu'illustré en figure 9, la seconde pièce 23 comprend également un premier logement 33 en équerre et un second logement 34 semi-cylindrique qui reçoivent une seconde extrémité en équerre 26b de la barre de transmission 26, illustrée en figure 15, ce qui permet d'assujettir ladite seconde pièce 23 à la barre de transmission 26 et, par conséquent, à la première pièce 22 intégrant la manette 20. Cet assemblage apparaît par exemple en figure 19.As illustrated in figure 9 , the second part 23 also comprises a first housing 33 in a square and a second semi-cylindrical housing 34 which receive a second square end 26b of the transmission bar 26, illustrated in figure 15 , which makes it possible to subject said second part 23 to the transmission bar 26 and, consequently, to the first part 22 integrating the lever 20. This assembly appears for example in figure 19 .

Ainsi, une manipulation de la manette 20 permet de pivoter concomitamment la barre de transmission 26 et les deux pièces 22-23 autour de l'axe X4.Thus, a manipulation of the lever 20 makes it possible to concomitantly pivot the transmission bar 26 and the two parts 22-23 around the axis X4.

La première pièce 22 comprend une patte de transmission 35 qui est munie d'une lumière 36, tel qu'illustré en figure 11. De même, la seconde pièce 23 comprend une patte de transmission 37 munie d'une lumière 38, comme illustré en figures 9 et 10. Ces deux pattes de transmission 35 et 37 sont disposées en regard respectivement aux deux extrémités en équerre 26a-26b de la barre de transmission 26, sur les côtés latéraux de la semelle 5, comme illustré par exemple en figure 19.The first part 22 comprises a transmission tab 35 which is provided with a light 36, as illustrated in figure 11 . Likewise, the second part 23 comprises a transmission tab 37 provided with a light 38, as illustrated in Figures 9 and 10 . These two transmission lugs 35 and 37 are arranged respectively opposite the two angled ends 26a-26b of the transmission bar 26, on the lateral sides of the sole 5, as illustrated for example in figure 19 .

Tel qu'illustré par exemple en figures 13, 14 et 16, la pièce de support 12 comprend sur ses côtés latéraux 12a-12b deux logements 39a-39b recevant chacun à pivotement, selon un axe X5 transversal, une première partie 40a d'une bielle 40 maintenue en liaison pivot grâce à un axe de liaison 41. Sur la figure 13, seule une des bielles 40 est montrée du côté latéral 12b de la pièce de support 12 afin de laisser en évidence le logement 39a et l'axe de liaison 41 sur l'autre côté 12a ; il va de soi que la bielle 40 sera positionnée dans ce logement 39a avant la mise en place de l'axe de liaison 41.As illustrated for example in figures 13, 14 and 16 , the support piece 12 comprises on its lateral sides 12a-12b two housings 39a-39b each receiving pivotally, along a transverse axis X5, a first part 40a of a connecting rod 40 held in pivot connection by means of a connecting pin 41. On the figure 13 , only one of the connecting rods 40 is shown on the lateral side 12b of the support piece 12 so as to leave visible the housing 39a and the connecting pin 41 on the other side 12a; it goes without saying that the connecting rod 40 will be positioned in this housing 39a before the establishment of the connecting pin 41.

Tel qu'illustré en figure 16, chaque bielle 40 comprend sur sa seconde partie 40b une fente 42 dans laquelle vient se loger la patte de transmission 35 de la première pièce 22 sur le côté latéral 12b de la pièce de support 12 et, de même, dans laquelle vient se loger la patte de transmission 37 de la seconde pièce 23 sur le côté latéral 12a de ladite pièce de support 12. Un tourillon 43, illustré en figure 14, est logé dans le trou 44 sur la seconde partie 40b de la bielle 40 et dans la lumière 36 de la patte de transmission 35 sur la première pièce 22, de même dans la lumière 38 de la patte de transmission 37 sur la seconde pièce 23. Ainsi les secondes parties 40b des bielles 40 peuvent pivoter et coulisser dans les lumières 36 et 38 respectives.As illustrated in figure 16 , each connecting rod 40 comprises on its second part 40b a slot 42 in which is housed the transmission lug 35 of the first part 22 on the lateral side 12b of the support part 12 and, similarly, in which is housed the transmission lug 37 of the second part 23 on the lateral side 12a of said support part 12. A pin 43, illustrated in figure 14 , is housed in the hole 44 on the second part 40b of the connecting rod 40 and in the light 36 of the transmission lug 35 on the first part 22, likewise in the light 38 of the transmission lug 37 on the second part 23 Thus, the second parts 40b of the connecting rods 40 can pivot and slide in the respective slots 36 and 38.

Tel qu'illustré en regard des figures 8, 13 et 18, la pièce de support 12 comprend deux portions cylindriques 45a-45b creuses disposant respectivement les trous de guidage 18a-18b, à l'intérieur desquelles viennent se loger des ressorts (non illustrés) qui reçoivent les tiges de guidages 19a-19b et qui prennent appui sur des croisillons 46a-46b agencés sur le côté supérieur de la semelle 5, ce qui force la pièce de support 12 en rappel vers le haut par rapport à la semelle 5 lorsque rien ne retient ladite pièce de support 12.As illustrated opposite figures 8 , 13 and 18 , the support piece 12 comprises two hollow cylindrical portions 45a-45b respectively having the guide holes 18a-18b, inside which are housed springs (not shown) which receive the guide rods 19a-19b and which take bearing on cross-pieces 46a-46b arranged on the upper side of the sole 5, which forces the support piece 12 upwardly with respect to the sole 5 when nothing retains said support piece 12.

Dans la première position de la manette 20 et du mécanisme 21, illustrée en figures 1, 4 et 5, les pattes de transmission 35 et 37 permettent, par le biais des bielles 40, de translater la pièce de support 12 vers le bas par rapport à la semelle 5, ce qui permet de sortir les brosses 13-14 et de les disposer en saillie vis-à-vis de la face inférieure 15. Les brosses 13-14 peuvent reposer sur la surface S à aspirer et la face inférieure 15 de la semelle 5 reste décollée de ladite surface S.In the first position of the lever 20 and of the mechanism 21, illustrated in figures 1 , 4 and 5 , the transmission lugs 35 and 37 make it possible, by means of the connecting rods 40, to translate the support piece 12 downwardly relative to the sole 5, which allows the brushes 13-14 to be removed and to have them projecting vis-à-vis the lower face 15. The brushes 13-14 can rest on the surface S to be sucked and the lower face 15 of the sole 5 remains detached from said surface S.

Dans la seconde position de la manette 20 et du mécanisme 21, illustrée en figures 2 et 6, les pattes de transmission 35 et 37 pivotent, ce qui déplace les lumières 36 et 38 vers le haut et l'arrière comme illustré en figure 2. Dans cette position les bielles 40 auraient tendance à demeurer dans la position illustrée en figure 1, c'est-à-dire aux premières extrémités 36a et 38a des lumières 36 et 38 sur les pattes de transmission 35 et 37. Toutefois, la présence des ressorts précités (non illustrés) force la pièce de support 12 à remonter et les bielles 40 à se positionner tel qu'illustré en figure 2, c'est-à-dire remontées aux secondes extrémités 36b et 38b desdites lumières 36 et 38. Dans cette seconde position, les brosses 13-14 sont en retrait de la face inférieure 15 de la semelle 5, la face inférieure 15 reposant sur la surface S à aspirer.In the second position of the lever 20 and of the mechanism 21, illustrated in figures 2 and 6 , the transmission lugs 35 and 37 pivot, which moves the lights 36 and 38 up and back as illustrated in figure 2 . In this position the connecting rods 40 would tend to remain in the position illustrated in figure 1 , that is to say at the first ends 36a and 38a of the lights 36 and 38 on the transmission lugs 35 and 37. However, the presence of the aforementioned springs (not shown) forces the support piece 12 to go up and the connecting rods 40 to position itself as illustrated in figure 2 , that is to say, raised to the second ends 36b and 38b of said slots 36 and 38. In this second position, the brushes 13-14 are set back from the lower face 15 of the sole 5, the lower face 15 resting on the surface S to be vacuumed.

Dans la troisième position de la manette 20 et du mécanisme 21, illustrée en figures 3 et 7, les pattes de transmission 35 et 37 continuent à pivoter vers l'arrière et le haut et les bielles 40 se positionnent tel qu'illustré en figure 3, c'est à dire aux premières extrémités 36a et 38a des lumières 36 et 38 sur les pattes de transmission 35 et 37. La pièce de support 12 étant déjà remontée par rapport à la semelle 5 sous l'action des ressorts (non illustrés) lors du passage en seconde position, celle-ci reste donc dans ladite position remontée avec les brosses 13-14 en retrait vis-à-vis de la face inférieure 15 de la semelle 5.In the third position of the lever 20 and of the mechanism 21, illustrated in figures 3 and 7 , the transmission lugs 35 and 37 continue to pivot backwards and upwards and the connecting rods 40 are positioned as illustrated in figure 3 , that is to say at the first ends 36a and 38a of the lights 36 and 38 on the transmission lugs 35 and 37. The support piece 12 is already raised relative to the sole 5 under the action of the springs (not shown) during the transition to the second position, the latter therefore remains in said raised position with the brushes 13-14 recessed with respect to the lower face 15 of the sole 5.

La première pièce 22 comprend un doigt de butée 47 qui est positionné sous la manette 20, comme illustré en figure 11. De même, la seconde pièce 23 comprend un doigt de butée 48. Les branches 6-7 de la fourche 3 comprennent chacune une partie d'extrémité 6c-7c qui s'étend au-delà de l'axe X2 de pivotement de ladite fourche 3 par rapport à la semelle 5, comme illustré en figure 12. Ces parties d'extrémités 6c-7c comprennent chacune un doigt d'appui 49-50. Les doigts de butée 47-48 sont disposés respectivement dans les champs de rotation des doigts d'appui 49-50.The first part 22 comprises a stop finger 47 which is positioned under the lever 20, as illustrated in figure 11 . Similarly, the second part 23 comprises an abutment finger 48. The branches 6-7 of the fork 3 each include an end portion 6c-7c which extends beyond the axis X2 of pivoting of said fork 3 relative to the sole 5, as illustrated in figure 12 . These end portions 6c-7c each include a support finger 49-50. The stop fingers 47-48 are arranged respectively in the fields of rotation of the support fingers 49-50.

Dans la première position de la manette 20 et de mécanisme 21, illustrée en figures 4 et 5, les doigts de butée 47-48 sont positionnés au point le plus haut ce qui permet à la fourche 3 de basculer vers l'arrière dans le sens de la flèche 11a illustrée en figure 2, par pivotement par rapport à la semelle 5, jusqu'à ce que les doigts d'appui 49-50 viennent au contact des doigts de butée 47-48 tel qu'illustré en figure 5. Inversement, la fourche 3 peut basculer vers l'avant dans le sens de la flèche 11b illustrée en figure 2, jusqu'à ce que les doigts d'appui 49-50 viennent en contact sur deux pièces de butée 51-52 disposées sur la face supérieure 53 de la semelle 5.In the first position of the lever 20 and of the mechanism 21, illustrated in Figures 4 and 5 , the stop fingers 47-48 are positioned at the highest point which allows the fork 3 to tilt backwards in the direction of the arrow 11a illustrated in figure 2 , by pivoting relative to the sole 5, until the bearing fingers 49-50 come into contact with the stop fingers 47-48 as illustrated in figure 5 . Conversely, the fork 3 can tilt forward in the direction of the arrow 11b illustrated in figure 2 , until the supporting fingers 49-50 come in contact with two abutment pieces 51-52 arranged on the upper face 53 of the sole 5.

Dans la seconde position de la manette 20 et du mécanisme 21, illustrée en figure 6, les doigts de butée 47-48 ont pivoté vers le bas par rapport à leur position illustrée en figures 4 et 5. Sur cette figure 6, la fourche 3 est basculée vers l'arrière dans le sens de la flèche 11a illustrée en figure 2. On remarque que le doigt d'appui 50 sur la fourche 3 est en contact avec le doigt de butée 48 sur la deuxième pièce 23 ; il en est de même entre le doigt d'appui 49 et le doigt de butée 47, cela n'apparaissant pas sur la figure 6 du fait de la présence de la manette 20. Le choix de la position d'arrêt de ces doigts de butée 47-48 dans la seconde position a pour conséquence de limiter plus ou moins le basculement vers l'arrière de la fourche 3 par rapport à la semelle 5. Du fait de cette limitation, les roues 4a-4b ont tendance à se soulever de la surface S à aspirer, la masse de la fourche 3, des roues 4a-4b et du manchon 2 ayant alors pour effet de lester la semelle 5 et de la faire basculer vers l'arrière dans le sens de la flèche 54 illustrée en figure 3, jusqu'à ce que les roues 4a-4b soient au contact de ladite surface S. La face inférieure 15 de la semelle 5 comprend une partie arrière 15b qui est inclinée vers le haut par rapport à sa partie avant 15a ; le lestage réalisé permet ainsi d'incliner la partie avant 15a de la semelle d'un angle α1 par rapport à la surface S, comme illustré en figure 2. Cela permet de laisser pénétrer un flux d'air dans la cavité 55 de la semelle 5 illustrée en figure 20. De préférence, la position d'arrêt des doigts de butée 47 et 48 sera choisie de manière à avoir un angle α1 compris entre un degré et trois degrés (1°<α1<3°), de préférence égal à deux degrés (α1=2°).In the second position of the lever 20 and of the mechanism 21, illustrated in figure 6 , the stop fingers 47-48 have pivoted down from their position illustrated in Figures 4 and 5 . On this figure 6 , the fork 3 is tilted back in the direction of the arrow 11a illustrated in figure 2 . Note that the support finger 50 on the fork 3 is in contact with the stop finger 48 on the second part 23; the same is true between the support finger 49 and the stop finger 47, this does not appear on the figure 6 due to the presence of the lever 20. The choice of the stop position of these abutment fingers 47-48 in the second position has the consequence of limiting more or less the rearward tilting of the fork 3 relative to the sole 5. Due to this limitation, the wheels 4a-4b tend to rise from the surface S to be sucked, the mass of the fork 3, the wheels 4a-4b and the sleeve 2 then having the effect of ballasting sole 5 and tilt it backwards in the direction of arrow 54 illustrated in figure 3 , until the wheels 4a-4b are in contact with said surface S. The underside 15 of the sole 5 comprises a rear part 15b which is inclined upwards relative to its front part 15a; the ballasting performed thus makes it possible to tilt the front part 15a of the sole at an angle α1 relative to the surface S, as illustrated in figure 2 . This allows an air flow to enter the cavity 55 of the sole 5 illustrated in figure 20 . Preferably, the stop position of the stop fingers 47 and 48 will be chosen so as to have an angle α1 of between one degree and three degrees (1 ° <α1 <3 °), preferably equal to two degrees (α1 = 2 °).

Dans la troisième position de la manette 20 et du mécanisme 21 illustrée en figure 7, les doigts de butée 47-48 sont complètement pivotés vers le bas et les doigts d'appui 49-50 de la fourche 3 sont pris en sandwich entre lesdits doigts de butée 47-48 et les portions de butée 51-52 sur la face supérieure 53 de la semelle 5. Ainsi, la fourche 3 est bloquée par rapport à la semelle 5 dans cette position de la figure 7. Durant l'actionnement de la manette 20 de la deuxième position vers la troisième position, les doigts de butée 47-48 des pièces 22-23 appuient contre les doigts d'appui 49-50 de la fourche 3, ce qui force ladite fourche 3 à basculer vers l'avant dans le sens de la flèche 11b illustrée en figure 2 et tend à décoller les roues 4a-4b de la surface S à nettoyer. Comme précédemment, le lestage de la semelle 5 généré par la masse de la fourche 3, des roues 4a-4b et du manchon 2 force ladite semelle 5 à basculer vers l'arrière dans le sens de la flèche 54 illustrée en figure 3, ce qui incline la partie avant 15a de la face inférieure 15 de cette semelle 5 d'un angle α2 illustré en figure 3. Cette angle α2 correspond plus moins à l'angle d'inclinaison de la partie arrière 15b par rapport à la partie avant 15a sur la face inférieure 15, ce qui permet d'amener ladite partie arrière 15b au contact de la surface S à nettoyer, comme l'illustre la figure 3. De préférence, cet angle α2 est compris entre sept degrés et dix degrés (7°<α1<10°), de préférence entre huit degrés et neuf degrés (8°<α1<9°).In the third position of the lever 20 and of the mechanism 21 illustrated in figure 7 , the stop fingers 47-48 are completely pivoted down and the support fingers 49-50 of the fork 3 are sandwiched between said stop fingers 47-48 and the stop portions 51-52 on the face upper 53 of the sole 5. Thus, the fork 3 is locked relative to the sole 5 in this position of the figure 7 . During the actuation of the lever 20 from the second position to the third position, the abutment fingers 47-48 of the parts 22-23 press against the bearing fingers 49-50 of the fork 3, which forces said fork 3 to tip forward in the direction of arrow 11b illustrated in figure 2 and tends to take off the wheels 4a-4b from the surface S to be cleaned. As before, the ballasting of the sole 5 generated by the mass of the fork 3, the wheels 4a-4b and the sleeve 2 forces said sole 5 to tilt backwards in the direction of the arrow 54 illustrated in figure 3 , which inclines the front part 15a of the lower face 15 of this sole 5 by an angle α2 illustrated in figure 3 . This angle α2 corresponds less to the angle of inclination of the rear part 15b with respect to the front part 15a on the lower face 15, which makes it possible to bring said rear part 15b into contact with the surface S to be cleaned, as the figure 3 . Preferably, this angle α2 is between seven degrees and ten degrees (7 ° <α1 <10 °), preferably between eight degrees and nine degrees (8 ° <α1 <9 °).

Comme l'illustrent les figures 3 et 20, dans cette troisième position, l'arête 15c entre la partie avant 15a et la partie arrière 15b sur la face inférieure 15 de la semelle 5 permet de gratter la surface S à aspirer. Cette arête 15c correspond sensiblement avec le bord arrière 55a de la cavité 55. Cette cavité 55 communique avec un embout 56, comme le montre la figure 20, lequel est raccordé au manchon 2 par le biais d'un conduit flexible 57 schématisé en pointillé sur la figure 1.As illustrated by figures 3 and 20 , in this third position, the edge 15c between the front part 15a and the rear part 15b on the underside 15 of the sole 5 makes it possible to scrape the surface S to be vacuumed. This edge 15c corresponds substantially with the rear edge 55a of the cavity 55. This cavity 55 communicates with a nozzle 56, as shown in the figure 20 , which is connected to the sleeve 2 by means of a flexible conduit 57 shown diagrammatically in dotted line on the figure 1 .

Tel qu'illustré par exemple en figures 9 à 11, la première pièce 22 comprend une patte d'arrêt 58 munie d'un ergot 59 et la seconde pièce 23 comprend également une patte d'arrêt 60 munie d'un ergot 61. Ces ergots 59 et 61 sont disposés en regard lorsque les pièces 22 et 23 sont montées sur la barre de transmission 26. Les pattes d'arrêt 58 et 60 sont flexibles ou souples sur les pièces 22 et 23. Tel qu'illustré en figure 8, la patte d'extension 29 sur la face supérieure 53 de la semelle 5 comprend sur son côté externe 29a une rainure 62 de forme circulaire. De même, la patte d'extension 31 comprend sur son côté externe 31a une rainure circulaire, non visible sur les figures, mais identique à la rainure 62. Ces rainures 62 comprennent chacune un orifice 63-64 positionné plus ou moins en partie centrale desdites rainures 62, comme l'illustre la figure 8. Les ergots 59 et 61 viennent respectivement se loger dans les rainures 62 lorsque les pièces 22-23 sont montées sur la semelle 5, lesdits ergots 59 et 61 venant légèrement en appui dans le fond de ces rainures 62. Du fait de la flexibilité des pattes d'arrêt 58 et 60, les ergots 59 et 61 pénètrent à l'intérieur des orifices 63-64 lorsque ceux-ci correspondent, ce qui arrête la position des pièces 22-23 et, par conséquent, celle de la manette 20. La manette 20 et le mécanisme se situent en seconde position dans cette configuration. En exerçant un léger appui sur la manette 20 pour la passer en première ou en troisième position, la souplesse des pattes d'arrêt 58 et 60 permet le dégagement des ergots 59 et 61 en dehors des orifices 63-64, permettant ainsi l'actionnement du mécanisme 21 et de la manette 20. Les ergots 59 et 61 se déplacent alors dans les rainures 62 respectives jusqu'à venir, dans un sens, en butée contre les premières extrémités 62a desdites rainures 62 où la manette 20 et le mécanisme 21 ont atteint la première position ou, dans l'autre sens, en butée contre les secondes extrémités 62b desdites rainures 62 où la manette 20 et le mécanisme 21 ont atteint la troisième position.As illustrated for example in figures 9 to 11 , the first part 22 comprises a stop lug 58 provided with a lug 59 and the second part 23 also includes a stop lug 60 provided with a lug 61. These lugs 59 and 61 are arranged facing each other when the parts 22 and 23 are mounted on the transmission bar 26. The stop lugs 58 and 60 are flexible or flexible on the parts 22 and 23. As illustrated in figure 8 , the extension tab 29 on the upper face 53 of the sole 5 comprises on its outer side 29a a groove 62 of circular shape. Similarly, the extension tab 31 comprises on its external side 31a a circular groove, not visible in the figures, but identical to the groove 62. These grooves 62 each comprise an orifice 63-64 positioned more or less in the central part of said grooves 62, as illustrated in figure 8 . The pins 59 and 61 are respectively housed in the grooves 62 when the parts 22-23 are mounted on the sole 5, said pins 59 and 61 coming to lightly bear in the bottom of these grooves 62. Due to the flexibility of the legs stop 58 and 60, the pins 59 and 61 penetrate inside the orifices 63-64 when these correspond, which stops the position of the parts 22-23 and, consequently, that of the lever 20. The lever 20 and the mechanism are in second position in this configuration. By exerting a slight pressure on the lever 20 to move it into the first or third position, the flexibility of the stop tabs 58 and 60 allows the lugs 59 and 61 to be released outside the orifices 63-64, thus allowing actuation of the mechanism 21 and of the lever 20. The pins 59 and 61 then move in the respective grooves 62 until they come, in one direction, into abutment against the first ends 62a of said grooves 62 where the lever 20 and the mechanism 21 have reaches the first position or, in the other direction, in abutment against the second ends 62b of said grooves 62 where the lever 20 and the mechanism 21 have reached the third position.

Tel qu'illustré sur les figures 10 et 11, les pièces 22-23 comprennent chacune une plaque de butée 65-66. Tel qu'illustré sur les figures 4 et 8, les pattes d'extension 28 et 32 sur la semelle 5 comprennent sur leurs côtés externes 28a et 32a des protubérances 67-68. Dans la première position de la manette 20 et du mécanisme 21, les plaques de butée 65-66 viennent respectivement en appui sur ces protubérances 68-67, comme l'illustrent les figures 4 et 5. Cela permet d'arrêter précisément la manette 20 et le mécanisme 21 en résistant à des efforts plus importants, la manette 20 étant fréquemment manipulée avec le pied par l'utilisateur. Ces plaques de butée 65-66 et protubérances 68-67 assurent une répartition convenable des efforts sur la largeur de la semelle 5, en association avec les rainures 62 et ergots 59 et 61, lors du retour de la manette 20 dans la première position.As illustrated on figures 10 and 11 , parts 22-23 each include a stop plate 65-66. As illustrated on figures 4 and 8 , the extension tabs 28 and 32 on the sole 5 include on their external sides 28a and 32a protrusions 67-68. In the first position of the lever 20 and of the mechanism 21, the stop plates 65-66 respectively come to bear on these protuberances 68-67, as illustrated by the Figures 4 and 5 . This makes it possible to precisely stop the lever 20 and the mechanism 21 while resisting greater forces, the lever 20 being frequently manipulated with the foot by the user. These abutment plates 65-66 and protrusions 68-67 ensure an adequate distribution of the forces over the width of the sole 5, in association with the grooves 62 and lugs 59 and 61, when the lever 20 returns to the first position.

Tel qu'illustré en figure 9, la seconde pièce 23 comprend une patte 69 munie d'une protubérance 70 sur son côté externe 69a, ladite protubérance 70 venant en appui contre le côté interne 28b de la patte d'extension 28 sur la semelle 5, comme l'illustre la figure 7. Cela permet de caler ladite pièce 23 sur la semelle 5 en maintenant convenablement l'ergot 61 en appui dans la rainure 62.As illustrated in figure 9 , the second part 23 comprises a tab 69 provided with a protuberance 70 on its external side 69a, said protuberance 70 coming to bear against the internal side 28b of the extension tab 28 on the sole 5, as illustrated in FIG. figure 7 . This makes it possible to wedge said piece 23 on the sole 5 while keeping the lug 61 properly supported in the groove 62.

La tête de succion 1 comprend également une pièce d'arrêt 71 illustrée en figure 17, qui est fixée à la semelle 5 et qui comprend une rainure 72 dans laquelle vient se loger la brosse 14 arrière, comme illustré en figure 19. Tel que décrit précédemment, dans la première position de la manette 20 les doigts d'appui 49-50 sur la fourche 3 viennent contre les doigts de butée 47-48 sur les pièces 22-23, ce qui définit et arrête la position basculée vers l'arrière de ladite fourche 3 vis-à-vis de la semelle 5. On pourrait toutefois envisager en variante que l'arrêt de la fourche 3 en position basculée soit réalisé par la pièce d'arrêt 71, auquel cas les faces inférieures 6b-7b des branches 6-7 de la fourche 3, illustrées en figure 12, viendraient en butée contre la face supérieure 71a de ladite pièce d'arrêt 71, comme on peut l'imaginer au regard de la figure 19.The suction head 1 also includes a stop piece 71 illustrated in figure 17 , which is fixed to the sole 5 and which includes a groove 72 in which comes place the rear brush 14, as illustrated in figure 19 . As described above, in the first position of the lever 20 the support fingers 49-50 on the fork 3 come against the stop fingers 47-48 on the parts 22-23, which defines and stops the tilted position towards the rear of said fork 3 vis-à-vis the sole 5. It could however be envisaged as a variant that the stopping of the fork 3 in the tilted position is achieved by the stop piece 71, in which case the lower faces 6b -7b of the branches 6-7 of the fork 3, illustrated in figure 12 , would come into abutment against the upper face 71a of said stop piece 71, as can be imagined with regard to the figure 19 .

On pourrait également envisager un dégagement suffisant desdits doigts de butée 47-48 vis-à-vis desdits doigts d'appui 49-50 pour ne pas limiter le basculement vers l'arrière de la fourche 3 vis-à-vis de la semelle 5, dans la seconde position de la manette 20, afin de maintenir la partie avant 15a de la face inférieure 15 de cette semelle 5 à plat sur la surface S à aspirer, dans cette seconde position.One could also consider a sufficient clearance of said abutment fingers 47-48 with respect to said bearing fingers 49-50 so as not to limit the tilting of the fork 3 towards the rear towards the sole 5 , in the second position of the lever 20, in order to keep the front part 15a of the lower face 15 of this sole 5 flat on the surface S to be sucked up, in this second position.

Des variantes de mise en œuvre sont envisageables sans sortir du cadre de l'invention.Variants of implementation are possible without departing from the scope of the invention.

Claims (15)

  1. Vacuum cleaner suction head (1), comprising a sole (5) provided with a lower face (15) and a cavity (55) opening onto this lower face, at least one brush (13, 14), a shaft (2) for connecting configured to communicate with the cavity and a fork (3) arranged between the sole and the shaft and mounted as pivot connections of transverse axes (X1, X2) opposite said sole and said shaft, characterised in that said suction head comprises a mechanism (21) and a lever (20), said lever being configured to actuate said mechanism according to three positions, said mechanism being configured to:
    - in the first position, lower the at least one brush (13, 14) and position it protruding from the lower face (15) by allowing the fork (3) to pivot with respect to the sole (5);
    - in the second position, raise the at least one brush (13, 14) and position it retracted from the lower face (15) by allowing the fork (3) to pivot with respect to the sole (5);
    - in the third position, maintain the at least one brush (13, 14) retracted from the lower face (15) by blocking the fork (3) opposite the sole (5).
  2. Suction head (1) according to claim 1, wherein the mechanism (21) comprises two angular abutments (47, 48, 51, 52) configured to approach one another during the actuation of the lever (20) from the first position to the third position, and vice versa.
  3. Suction head (1) according to any one of the preceding claims, wherein the mechanism (21) is configured such that, in the third position of the lever (20), the blocking of the fork (3) wedges this in a position tilted towards the front opposite the sole (5).
  4. Suction head (1) according to claim 3, wherein the fork (3) is configured to weight the sole (5) so as to force the inclination towards the rear of said sole due to the wedging, said inclination being carried out at an angle (α2) of seven to ten degrees, preferably eight to nine degrees.
  5. Suction head (1) according to any one of the preceding claims, wherein the mechanism (21) is configured such that, in the second position of the lever (20), the pivoting of the fork (3) is limited during the tilting thereof towards the rear.
  6. Suction head (1) according to claim 5, wherein the fork (3) is configured to weight the sole (5) so as to force the inclination towards the rear of said sole due to the limitation, said inclination being carried out at an angle (α1) of one to three degrees, preferably two degrees.
  7. Suction head (1) according to any one of the preceding claims, where a pivot connection of transverse axis is arranged between the lever (20) and the sole (5), the mechanism (21) comprising at least one high abutment part (47, 48) and means for subjecting said abutment part to the lever, the fork (3) comprising at least one supporting part (49, 50) arranged to come into contact against the at least one high abutment part during a tilting towards the rear of the fork.
  8. Suction head (1) according to any one of the preceding claims, wherein the mechanism (21) comprises at least one low abutment part (51, 52), the fork (3) comprising at least one supporting part (49, 50) arranged to come into contact against the at least one low abutment part during a tilting towards the front of the fork.
  9. Suction head (1) according to any one of the preceding claims, wherein a pivot connection of transverse axis is arranged between the lever (20) and the sole (5), the mechanism (21) comprising:
    - at least one transmission pad (35, 37) provided with a light (36, 38) and means for subjecting said transmission pad to the lever (20);
    - at least one connecting rod (40) provided with an upper portion (40b) receiving a pin (43) which is housed in said light;
    - a support part (12) of the at least one brush (13, 14), mounted in sliding connection on the sole (5) about an axis (X3) perpendicular to the lower face (15) of said sole, the connecting rod (40) being provided with a lower portion (40a) mounted pivoting opposite said support part (12).
  10. Suction head (1) according to any one of the preceding claims, which comprises a system for stopping (58 to 64) the lever (20) and the mechanism (21) according to the three positions.
  11. Suction head (1) according to claim 10, wherein a pivot connection of transverse axis (X4) is arranged between the lever (20) and the sole (5), the stopping system comprising at least:
    - one stopping pad (58, 60) and means for subjecting said stopping pad to the lever, the stopping pad comprising a lug (59, 61) mounted flexible;
    - a circular groove (62) arranged on the sole wherein the lug is housed, said groove comprising an orifice (63, 64) configured to receive the lug in the second position of the lever, said lug abutting against the ends (62a, 62b) of the groove in the first and third positions of the lever.
  12. Suction head (1) according to any of claims 10 or 11, wherein the stopping system comprises at least one protrusion (67, 68) on the sole (5) and at least one abutment plate (65, 66) coming into contact with said protrusion during the return into the first position of the lever (20) and of the mechanism (21).
  13. Suction head (1) according to any one of the preceding claims, which comprises return means configured to contribute to the rising of the at least one brush (13, 14) during the movement of the lever (20) from the first position to the second position.
  14. Suction head (1) according to any one of the preceding claims, which comprises at least one wheel (4a, 4b) arranged in the pivoting axis (X1) between the fork (3) and the shaft (2).
  15. Vacuum cleaner equipped with a suction head (1) comprising the characteristics of any of claims 1 to 14.
EP18155424.7A 2017-02-08 2018-02-06 Vacuum cleaner suction head with three positions Active EP3360453B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1751054A FR3062562B1 (en) 2017-02-08 2017-02-08 HEAD OF VACUUM SUCCESS WITH THREE POSITIONS

Publications (2)

Publication Number Publication Date
EP3360453A1 EP3360453A1 (en) 2018-08-15
EP3360453B1 true EP3360453B1 (en) 2019-12-18

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EP18155424.7A Active EP3360453B1 (en) 2017-02-08 2018-02-06 Vacuum cleaner suction head with three positions

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EP (1) EP3360453B1 (en)
CN (2) CN108392137B (en)
ES (1) ES2767962T3 (en)
FR (1) FR3062562B1 (en)

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CN109620054B (en) * 2018-12-21 2023-06-13 苏州市利飞特电器有限公司 Floor brush
FR3096570B1 (en) 2019-05-29 2021-05-28 Seb Sa Vacuum cleaner nozzle equipped with a locking device to lock at least one brush in the lowered position
FR3096571B1 (en) 2019-05-29 2021-05-28 Seb Sa Vacuum cleaner nozzle equipped with a fork and a locking device to lock a pivoting of the fork
FR3097417B1 (en) 2019-06-18 2023-01-13 Philippe Jousseaume INSTALLATION AND METHOD FOR SELF-SERVICE DISTRIBUTION OF MATERIALS
FR3123550B1 (en) 2021-06-03 2023-05-19 Seb Sa vacuum cleaner nozzle

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Publication number Publication date
FR3062562B1 (en) 2019-03-15
CN108392137A (en) 2018-08-14
CN209595646U (en) 2019-11-08
CN108392137B (en) 2021-08-27
ES2767962T3 (en) 2020-06-19
EP3360453A1 (en) 2018-08-15
FR3062562A1 (en) 2018-08-10

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