EP3900596A1 - Cleaning unit for suction head - Google Patents

Abstract

The cleaning unit (11) includes a rotating brush (12) which is configured to be removably mounted in a housing for receiving a suction head, and a closure plug (16) which is configured to close. a passage opening (13) through which the rotating brush (12) is adapted to be introduced into and withdrawn from the receiving housing, the closure plug (16) comprising a plug body (17) and at least one member locking device (18) which is movable relative to the stopper body (17) between a locking position in which the at least one locking member (18) cooperates with at least one locking element provided on the suction head so as to prevent a withdrawal of the rotating brush (12) from the receiving housing and a release position in which the at least one locking member (18) releases the at least one locking member so as to allow a removing the rotating brush (12) from the reception accommodation.

Description

Technical area

The present invention relates to the field of vacuum cleaners equipped with a suction head for sucking up dust and small particle size waste present on a surface to be cleaned.

State of the art

Vacuum cleaners equipped with a suction head are well known on the market, the latter making it possible to clean surfaces by suction for the removal of dust and small-grain waste based thereon. The surface to be vacuumed can, for example, be tiles, parquet, laminate, carpet or a rug.

A suction head comprises, in a known manner, a main body comprising a sole provided with a lower face and with a suction orifice opening into the lower face of the sole. The underside of the sole is intended to be positioned adjacent to the surface to be vacuumed during use of the vacuum head.

• une brosse rotative qui est mobile en rotation autour d'un axe de rotation et qui est montée de manière amovible dans un logement de réception délimité par le corps principal de la tête d'aspiration, et
• un bouchon de fermeture qui est configuré pour fermer au moins partiellement une ouverture de passage prévue sur le corps principal et à travers laquelle la brosse rotative est apte à être introduite dans et retirée hors du logement de réception, la brosse rotative étant rotative par rapport au bouchon de fermeture.

In order to improve the cleaning performance of a suction head, it is known practice to equip the latter with a cleaning unit comprising:

• a rotating brush which is movable in rotation about an axis of rotation and which is removably mounted in a receiving housing delimited by the main body of the suction head, and
• a closure plug which is configured to at least partially close a passage opening provided on the main body and through which the rotating brush is adapted to be introduced into and withdrawn out of the receiving housing, the rotating brush being rotatable relative to the closing cap.

In order to ensure retention of the rotating brush in the receiving housing, the closure cap advantageously comprises a cap body and locking means provided on the cap body and configured to lock the cap body on the main body. The locking means can by example include a thread configured to cooperate with an internal thread provided on the main body.

Such a configuration of the closure cap makes it difficult for a user to lock the cap body onto the main body of the suction head. Furthermore, such a configuration requires on the part of the user a force to screw the closing cap onto the main body which makes the locking of the closing cap on the main body random. Indeed, depending on the intensity of the screwing force exerted by the user, the closure cap is more or less tight on the main body. If the closing cap is not tight enough, the vibrations generated by the rotation of the rotating brush may cause the closing cap to loosen until it is completely unscrewed. If, on the other hand, the closing cap is too tight, the loosening of the closing cap may require an abnormally high loosening torque so that loosening is made difficult or impossible for the user.

Summary of the invention

The present invention aims to remedy all or part of these drawbacks.

The technical problem underlying the invention consists in particular in providing a cleaning unit for a suction head ensuring easy and ergonomic locking and unlocking of the stopper body on the main body of the suction head.

• une brosse rotative qui est mobile en rotation autour d'un axe de rotation et qui est configurée pour être montée de manière amovible dans un logement de réception délimité par un corps principal de la tête d'aspiration, et
• un bouchon de fermeture qui est configuré pour fermer au moins partiellement une ouverture de passage prévue sur le corps principal et à travers laquelle la brosse rotative est apte à être introduite dans le logement de réception et retirée hors du logement de réception.

To this end, the present invention relates to a cleaning unit for a suction head, comprising:

• a rotating brush which is movable in rotation about an axis of rotation and which is configured to be removably mounted in a receiving housing delimited by a main body of the suction head, and
• a closure plug which is configured to at least partially close a passage opening provided on the main body and through which the rotating brush is adapted to be introduced into the receiving housing and withdrawn from the receiving housing.

The rotating brush rotates relative to the closure cap.

The closure cap has a cap body and locking means configured to lock the cap body to the main body.

The locking means comprise at least one locking member which is movable relative to the stopper body between a locking position in which the at least one locking member cooperates with at least one locking member provided on the main body so preventing a withdrawal of the rotating brush from the receiving housing and a release position in which the at least one locking member releases the at least one locking member so as to allow withdrawal of the rotating brush from the housing reception.

The closure cap comprises an actuating member capable of moving between a first actuation position and a second actuation position. The actuator has at least one cam surface and the at least one locking member has at least one contact surface which contacts the cam surface and which is configured to move along the cam surface. such that when the actuator is moved between the first actuation position and the second actuation position, the contact surface moves along the cam surface to cause displacement of the at least one locking member between the release position and the locking position.

Such a configuration of the closure cap guarantees easy and ergonomic locking of the cap body on the main body of the suction head. As a result, the cleaning unit according to the present invention ensures increased user comfort for a user.

In addition, such a configuration of the closure cap ensures effective retention of the cap body in the passage opening and therefore of the rotating brush in the receiving housing.

Moreover, such a configuration ensures reliable locking with a locking force exerted by the user to lock the closure cap which is reduced compared to the solutions of the aforementioned state of the art.

The cleaning unit may further have one or more of the following characteristics, taken alone or in combination.

Advantageously, the actuator and the at least one locking member are configured such that a movement of the actuator from the first actuation position to the second actuation position causes a displacement of the at least one locking member from the released position to the locked position and such that a movement of the actuating member from the second actuating position to the first actuating position causes a displacement of the at least one locking member from the locking position to the release position. Such a configuration of the closure cap allows locking / unlocking of the cap body only by moving the actuator between the first and second actuation positions, which in particular ensures easy and ergonomic removal of the rotating brush from the reception accommodation.

Such a configuration also contributes to ensuring reliable locking with a locking force exerted by the user to lock the closure cap which is reduced compared to the solutions of the aforementioned state of the art.

According to one embodiment of the invention, the actuating member is mounted to be movable in rotation about an actuation axis which is substantially parallel to the axis of rotation of the rotating brush.

According to one embodiment of the invention, the axis of rotation of the rotating brush is substantially coincident with a central axis of the rotating brush.

Advantageously, the actuation axis is substantially coaxial with the axis of rotation.

According to one embodiment of the invention, at least one locking member is movable relative to the stopper body in a direction of movement which extends transversely to the axis of rotation of the rotating brush.

According to one embodiment of the invention, the direction of movement of the at least one locking member is substantially radial with respect to the axis of rotation of the rotating brush.

According to one embodiment of the invention, the at least one locking member is mounted to slide relative to the stopper body.

According to one embodiment of the invention, the at least one locking member is configured to protrude radially from an outer periphery of the stopper body when the at least one locking member occupies the locking position.

According to one embodiment of the invention, the at least one locking member is configured to be situated set back from or to be substantially flush with the outer periphery of the stopper body when the at least one locking member occupies the position of. release.

According to one embodiment of the invention, the actuating member has the general shape of a disc.

According to one embodiment of the invention, the at least one cam surface extends transversely to the axis of rotation of the rotating brush. This arrangement contributes to the compactness of the cleaning unit.

Advantageously, the generator of the cam surface is substantially parallel to the axis of rotation of the rotating brush. This arrangement helps to simplify the cleaning unit.

According to one embodiment of the invention, said at least one contact surface is produced by an outer surface of a lug which projects from the locking member and which is configured to slide on the at least one surface of the lug. cam. This embodiment contributes to the simplicity of the cleaning unit.

According to one embodiment of the invention, the lug protrudes from the locking member in a direction which is parallel to the axis of rotation of the rotating brush.

According to one embodiment of the invention, the actuating member comprises at minus one cam groove in which the at least one cam surface is formed.

According to one embodiment of the invention, the at least one cam groove extends transversely to the axis of rotation of the rotating brush. This arrangement contributes to the compactness of the cleaning unit.

According to one embodiment of the invention, the at least one cam groove is formed by at least two groove flanks, preferably parallel, each groove flank having a generatrix which is substantially parallel to the axis of rotation of the rotating brush.

According to one embodiment of the invention, at least one of the two groove sides forms the at least one cam surface.

According to one embodiment of the invention, the lug is received in the cam groove and slides in the cam groove so that, when the actuating member is moved between the first actuation position and the second actuation position, the lug moves in the cam groove by sliding on the at least one cam surface and causes a movement of the locking member between the release position and the locking position. This arrangement contributes to the compactness and reliability of the cleaning unit and more particularly to the compactness of the sub-assembly formed by the locking means and the actuating member while ensuring mechanical reliability of the connection between the means. locking device and the actuator.

According to one embodiment of the invention, the at least one cam surface, preferably the at least one cam groove, is curved. The at least one cam surface, preferably the at least one cam groove, can for example have the shape of an arc of a circle or have a progressive radius of curvature.

According to one embodiment of the invention, the at least one cam surface, preferably the at least one cam groove, is substantially rectilinear.

According to one embodiment of the invention, the at least one cam groove comprises a first cam surface which is configured to move the at least one member. locking from the release position to the locked position when the actuator is moved from the first actuation position to the second actuation position, and a second cam surface which is configured to move the actuator least one locking member from the locking position to the release position when the actuating member is moved from the second actuating position to the first actuating position.

According to one embodiment of the invention, each of the first and second cam surfaces is curved. Each of the first and second cam surfaces may for example have the shape of a circular arc or have a progressive radius of curvature.

According to one embodiment of the invention, each of the first and second cam surfaces is substantially rectilinear.

According to one embodiment of the invention, a first side of the groove forms a first cam surface serving to push the lug and the locking member radially outwards from the stopper body when the actuator member is moved from the first actuation position to the second actuation position and in which a second side of the groove forms a second cam surface serving to pull the lug and the locking member radially inwardly of the body plug when the actuator is moved from the second actuation position to the first actuation position.

According to one embodiment of the invention, in which the contact surface is produced by a peripheral surface of a roller which is mounted so as to be able to rotate on the locking member and which is configured to roll on the cam surface.

According to one embodiment of the invention, the actuating member can be actuated manually from outside the suction head when the stopper body is locked on the main body.

According to one embodiment of the invention, the locking means comprise a plurality of locking members which are angularly offset from each other with respect to the axis of rotation of the rotating brush, preferably three locking members, the actuating member having a corresponding number of cam surfaces. When the locking means comprise three locking members, a corresponding number of cam surfaces is for example 3 or 6. A plurality of locking members makes it possible to ensure reliable locking. The presence of three locking members is preferred because it allows locking at 3 points and therefore isostatic locking without play or with less play than in a hyperstatic locking comprising more than 3 locking points. This makes it possible to reduce the vibrations likely to be generated by the connection between the locking members of the cleaning unit and at least one locking element provided on the main body of the suction head.

According to one embodiment of the invention, the closure cap comprises a gripping handle configured to be gripped by a user.

The presence of such a gripping handle makes it possible to facilitate the removal of the rotating brush from the receiving housing by a user, for example to carry out its cleaning.

According to one embodiment of the invention, the gripping handle is movable between a rest position and a gripping position in which the gripping handle is configured to be gripped by a user. These arrangements make it possible to facilitate the removal of the rotating brush from the receiving housing, while limiting the size of the closure cap and therefore of the cleaning unit on the suction head.

According to one embodiment of the invention, the gripping handle is pivotally mounted between the rest position and the gripping position about a pivot axis. The pivot axis of the gripping handle is, for example substantially perpendicular to the axis of rotation of the rotating brush.

According to one embodiment of the invention, the gripping handle is mounted on the actuating member. These arrangements make it possible to improve the grip of the closure cap, in particular for locking / unlocking the cap body on the main body of the suction head.

According to one embodiment of the invention, the gripping handle is configured to move the actuating member between the first actuation position and the second actuation position when the gripping handle is actuated by a user.

According to one embodiment of the invention, the gripping handle is configured to transmit a torque to the actuator.

According to one embodiment of the invention, the actuator member is configured to be moved from the first actuation position to the second actuation position when a first torque is applied to the gripping handle by a user in a first direction of rotation, and the actuator is configured to be moved from the second actuation position to the first actuation position when a second torque is applied to the gripping handle by a user in a second direction of rotation opposite to the first direction of rotation.

According to one embodiment of the invention, the closure cap comprises a fixing cover which is fixed to the stopper body and which partially covers the actuating member. The fixing cover and the stopper body advantageously define a mounting housing in which the actuator is mounted. The fixing cover can for example be annular.

According to one embodiment of the invention, the actuating member comprises a reading mark and the closure cap comprises a locking mark and a release mark which are angularly offset with respect to the axis of rotation of the rotating brush and which are stationary in rotation with respect to the stopper body, the reading mark being configured to be located opposite the release mark when the actuating member occupies the first actuating position and to be located opposite the locking mark when the actuating member occupies the second position actuation. Advantageously, the locking mark and the release mark are provided on the fixing cover.

According to one embodiment of the invention, the rotating brush comprises a brush body which is tubular. Advantageously, the brush body is cylindrical with a circular section.

According to one embodiment of the invention, the rotating brush is guided in rotation in or around the stopper body.

According to one embodiment of the invention, the rotating brush comprises bristles provided on the outer surface of the brush body. Advantageously, the rotating brush comprises at least one row of bristles provided on the outer surface of the brush body.

According to one embodiment of the invention, the locking members are regularly distributed around the axis of rotation of the rotating brush.

• un corps principal comportant un logement de réception débouchant dans une face inférieure du corps principal qui est configurée pour être orientée vers une surface à nettoyer, une ouverture de passage débouchant dans le logement de réception, et au moins un élément de verrouillage, et
• une unité de nettoyage selon la présente invention, la brosse rotative étant montée de manière amovible dans le logement de réception, le bouchon de fermeture fermant au moins partiellement l'ouverture de passage et l'au moins un organe de verrouillage coopérant avec l'au moins un élément de verrouillage.

The present invention further relates to a suction head comprising:

• a main body comprising a receiving housing opening into a lower face of the main body which is configured to be oriented towards a surface to be cleaned, a passage opening opening into the receiving housing, and at least one locking element, and
• a cleaning unit according to the present invention, the rotating brush being removably mounted in the receiving housing, the closure plug at least partially closing the passage opening and the at least one locking member cooperating with the au minus one locking element.

According to one embodiment of the invention, the at least one locking element comprises at least one locking groove in which the at least one locking member is configured to engage when the at least one locking member occupies the locked position. Advantageously, the at least one locking groove extends at least in part around the passage opening.

According to one embodiment of the invention, the at least one locking element comprises a plurality of locking grooves which are angularly offset from each other with respect to the axis of rotation of the rotating brush and in each of which is intended to be received by a respective locking member.

According to one embodiment of the invention, the at least one locking member and the stopper body are stationary in rotation with respect to the receiving housing when the stopper body is locked on the main body.

According to one embodiment of the invention, the suction head comprises a keying device configured to impose a relative angular orientation between the closure cap and the main body during insertion of the cap body in the opening of passage.

According to one embodiment of the invention, the coding device comprises at least one coding element, such as a coding rib, provided on the closure cap, and at least one coding member, such as a groove keying, provided on the main body.

According to the embodiment of the invention, the passage opening is provided on a lateral face of the main body.

According to one embodiment of the invention, the suction head comprises a drive device configured to drive the rotating brush in rotation about the axis of rotation.

According to one embodiment of the invention, the rotating brush comprises a first end portion configured to be coupled in rotation to the drive device, and a second end portion supported by the closure cap and mounted to be movable in rotation. in relation to the closing cap.

According to one embodiment of the invention, the drive device comprises a drive motor, the output axis of which can be substantially aligned with the axis of rotation of the rotating brush or be offset from the axis of rotation of the rotating brush.

According to one embodiment of the invention, the main body comprises a sole provided with the lower face which is configured to be oriented towards the surface to be cleaned, and with a suction port opening into the lower face. Advantageously, the receiving housing opens into the underside of the sole via the suction orifice.

According to one embodiment of the invention, the suction orifice has an elongated shape and extends transversely, and for example perpendicularly, to the direction of movement of the suction head.

Brief description of the figures

• [Fig 1] La figure 1 est une vue en perspective de dessus d'une tête d'aspiration selon la présente invention.
• [Fig 2] La figure 2 est une vue en perspective de dessus de la tête d'aspiration de la figure 1 montrant une unité de nettoyage de la tête d'aspiration partiellement retirée.
• [Fig 3] La figure 3 est une vue partielle de côté de la tête d'aspiration de la figure 1, montrant un bouchon de verrouillage de l'unité de nettoyage en position verrouillée.
• [Fig 4] La figure 4 est une vue partielle de côté de la tête d'aspiration de la figure 1, montrant le bouchon de verrouillage en position déverrouillée.
• [Fig 5] La figure 5 est une vue en coupe longitudinale de la tête d'aspiration de la figure 1.
• [Fig 6] La figure 6 est une vue éclatée en perspective d'un bouchon de fermeture de l'unité de nettoyage de la figure 2.
• [Fig 7] La figure 7 est une vue en perspective de l'unité de nettoyage, montrant une poignée de préhension dans une position de préhension et des organes de verrouillage dans une position de libération.
• [Fig 8] La figure 8 est une vue en perspective de l'unité de nettoyage, montrant la poignée de préhension dans une position de repos et les organes de verrouillage dans une position de verrouillage.
• [Fig 9] La figure 9 est une vue avant en perspective du bouchon de fermeture, montrant les organes de verrouillage dans la position de verrouillage.
• [Fig 10] La figure 10 est une vue en coupe du bouchon de fermeture, montrant les organes de verrouillage dans la position de libération.
• [Fig 11] La figure 11 est une vue en coupe du bouchon de fermeture, montrant les organes de verrouillage dans la position de verrouillage.

The invention will be clearly understood with the aid of the description which follows with reference to the appended schematic drawings showing, by way of non-limiting example, one embodiment of this suction head.

• [ Fig 1 ] The figure 1 is a perspective view from above of a suction head according to the present invention.
• [ Fig 2 ] The figure 2 is a perspective view from above of the suction head of the figure 1 showing a partially removed suction head cleaning unit.
• [ Fig 3 ] The figure 3 is a partial side view of the suction head of the figure 1 , showing a locking cap of the cleaning unit in the locked position.
• [ Fig 4 ] The figure 4 is a partial side view of the suction head of the figure 1 , showing the locking cap in the unlocked position.
• [ Fig 5 ] The figure 5 is a longitudinal sectional view of the suction head of the figure 1 .
• [ Fig 6 ] The figure 6 is an exploded perspective view of a closure cap for the cleaning unit of the figure 2 .
• [ Fig 7 ] The figure 7 is a perspective view of the cleaning unit, showing a gripping handle in a gripping position and locking members in a release position.
• [ Fig 8 ] The figure 8 is a perspective view of the cleaning unit, showing the grip handle in a rest position and the locking members in a locking position.
• [ Fig 9 ] The figure 9 is a front perspective view of the closure cap, showing the locking members in the locked position.
• [ Fig 10 ] The figure 10 is a sectional view of the closure cap, showing the locking members in the release position.
• [ Fig 11 ] The figure 11 is a sectional view of the closure cap, showing the locking members in the locking position.

detailed description

The figures 1 to 11 show a suction head 2 comprising a connecting sleeve 3 to which is intended to be connected an end piece of a rigid or flexible tube, itself connected to a suction system of a vacuum cleaner (not shown). Various variants of vacuum cleaners already exist on the market and can be used with the suction head 2 according to the invention; these variants being known to those skilled in the art, they are not detailed in the present patent application.

The suction head 2 includes a main body 4 configured to be moved over a surface to be cleaned. The connecting sleeve 3 is advantageously mounted in a pivot connection with respect to the main body 4 so as to allow pivoting of the main body 4 forwards and backwards during a movement of the suction head 2 according to a direction of travel D1.

The main body 4 comprises a sole 5 provided with a lower face 6 configured to be oriented towards the surface to be cleaned, and with a suction port 7 opening onto the lower face 6. The suction port 7 communicates with the connecting sleeve 3 by means in particular of a connecting passage formed at least in part for example by a flexible connecting duct. The suction port 7 can by example have an elongated shape and extend transversely, and for example perpendicularly, to the direction of movement D1 of the suction head 2.

The main body 4 further comprises a receiving housing 9 which opens into the underside of the sole 5 via the suction port 7, and which is fluidly connected to the connecting passage. Thus, according to the embodiment shown in the figures, the receiving housing 9 forms a suction chamber.

The suction head 2 also comprises a cleaning unit 11 comprising a rotating brush 12 which is mounted so as to be able to rotate in the receiving housing 9 along an axis of rotation A which is substantially coincident with the central axis of the rotating brush 12. Advantageously, the rotating brush 12 is removably mounted in the receiving housing 9 and configured to be introduced into and withdrawn from the receiving housing 9 in a mounting direction D2. The mounting direction D2 extends transversely, and preferably perpendicularly, to the direction of movement D1 of the suction head 2.

According to the embodiment shown in the figures, the main body 4 has a passage opening 13 opening into the receiving housing 9 and through which the rotating brush 12 can be introduced into and withdrawn from the receiving housing 9. So advantageously, the passage opening 13 is provided on a lateral face of the main body 4.

According to the embodiment shown in the figures, the rotating brush 12 comprises a brush body 14 which is for example tubular, and bristles 15 provided on the outer surface of the brush body 14. Advantageously, the brush body 14 is cylindrical with a circular section, and the rotating brush 12 comprises a plurality of rows of bristles extending for example helically around the central axis of the rotating brush 12. According to an alternative embodiment not shown in the figures, the rows of bristles could be replaced by elastically deformable lamellae or by a foam cleaning sleeve.

The cleaning unit 11 further comprises a closure cap 16 which is configured to at least partially close the passage opening 13 when the rotating brush 12 is mounted in the receiving housing 9.

The closure cap 16 has a cap body 17 and locking means configured to lock the cap body 17 to the main body 4.

The locking means comprise at least one locking member 18, advantageously three locking members 18, which are mounted movably, preferably sliding, on the stopper body 17 between a locking position in which the locking members 18 cooperate with one another. at least one locking member provided on the main body 4 so as to prevent a withdrawal of the rotating brush 12 from the receiving housing 9 and a release position in which the locking members 18 release the at least one locking member from so as to allow the rotary brush 12 to be withdrawn from the receiving housing 9. Each locking member 18 is advantageously a locking bolt.

According to one embodiment of the invention, the at least one locking element comprises only one locking groove 19 extending at least in part around the passage opening 13, and each locking member 18 is configured to engage in the locking groove 19 when the locking members 18 occupy the locking position. According to another embodiment of the invention, the at least one locking element comprises a plurality of locking grooves 19 which are angularly offset from each other with respect to the axis of rotation A of the rotating brush 12 and in each of which is intended to be received a respective locking member 18.

According to the embodiment shown in the figures, the locking members 18 are regularly distributed around the axis of rotation A of the rotating brush 12, and each locking member 18 is mounted to move relative to the stopper body 17 according to a direction of movement which extends substantially radially to the axis of rotation A of the rotating brush 12.

The locking members 18 are configured to protrude radially from the outer periphery 21 of the stopper body 17 when the locking members 18 occupy the locking position (see figures 9 and 11 ), and are configured to be located set back from or to be substantially flush with the outer periphery 21 of the stopper body 17 when the locking members 18 occupy the release position (see figures 7 and 10 ).

Advantageously, the locking members 18 and the stopper body 17 are stationary in rotation relative to the receiving housing 9 when the stopper body 17 is locked on the main body 4.

The closure cap 16 also includes an actuator 22 which is configured to move the locking members 18 between the locked position and the released position. The actuator 22 may for example have the general shape of a disc.

According to the embodiment shown in the figures, the actuating member 22 is mounted to be movable in rotation relative to the stopper body 17, about an actuation axis which is substantially coaxial with the axis of rotation A of the rotating brush 12, between a first actuation position (see figure 7 ) and a second actuation position (see figure 8 ), and the actuator 22 and the locking members 18 are configured such that a movement of the actuator 22 from the first actuation position to the second actuation position causes a displacement locking members 18 from the release position to the locking position and such that a movement of the actuator 22 from the second actuation position to the first actuation position causes a displacement of the members locking device 18 from the locked position to the released position. Such a configuration of the closure cap 16 allows locking / unlocking of the cap body 17 only by moving the actuator 22 between the first and second actuation positions, which ensures easy and ergonomic removal of the rotating brush. 12 outside the reception area 9.

As shown on figures 10 and 11 , the actuator 22 comprises at least a cam surface which is advantageously formed by a cam groove 23, advantageously three cam grooves 23, in each of which is received a lug 24 provided on a respective locking member 18. Each cam groove 23 extends transversely to the axis of rotation A of the rotating brush 12.

According to the embodiment shown in the figures, each cam groove 23 is curved and has the general shape of an arc of a circle. Each cam groove 23 may have a constant radius of curvature or a progressive radius of curvature. According to an alternative embodiment not shown in the figures, each cam groove 23 could however be rectilinear.

Each cam groove 23 has a first cam surface 23.1 which is configured to move the respective locking member 18 from the release position to the locking position when the actuator 22 is rotatably moved from the first position. actuation to the second actuation position, and a second cam surface 23.2 which is configured to move the respective latch member 18 from the latch position to the release position when the actuator 22 is moved in rotation from the second actuation position to the first actuation position. The first cam surface 23.1 is formed by a first side of the groove and the second cam surface 23.2 is formed by a second side of the groove. The second groove flank is advantageously parallel to the first groove flank and the width of the cam groove 23 is substantially greater than the width / diameter of the lug 24 so that the lug 24 is guided in the cam groove 23 when the actuator 22 is moved in rotation.

Advantageously, each lug 24 is in sliding contact alternately on the first cam surface 23.1 then on the second cam surface 23.2 so that, when the actuator 22 is moved from the first actuation position towards the second actuation position, said lug 24 slides on the first cam surface 23.1, and when the actuator 22 is moved from the second actuation position to the first position actuation, said lug 24 moves by sliding on the second cam surface 23.2.

In an alternative embodiment, each lug 24 could be in sliding contact simultaneously on the first and second cam surfaces 23.1, 23.2.

In an alternative embodiment, a single cam surface is provided for each locking member. In this embodiment, return means, such as springs, allow each lug to remain in contact with the cam surface.

In an alternative embodiment, each locking member 18 could carry a rolling roller mounted so as to be able to rotate on each locking member 18 in order to produce a rolling contact on the corresponding cam surface of the actuating member or on the first or second surfaces. 23.1, 23.2 formed by the cam groove 23. In other words, in this variant the locking members do not slide on the cam surfaces but roll on the cam surfaces of the actuator 22 when the latter is for example moved from the first actuation position to the second actuation position.

The closure cap 16 further comprises a gripping handle 25 configured to be gripped by a user, for example to allow removal of the rotating brush 12 from the receiving housing 9. The gripping handle 25 may for example have a semi-circular shape. -circular or any other shape.

Advantageously, the gripping handle 25 is pivotally mounted on the actuator 22 between a rest position (see figure 8 ) and a gripping position (see figure 7 ) around a pivot axis which is substantially perpendicular to the axis of rotation A of the rotating brush 12. The gripping handle 25 and the actuating member 22 are more particularly configured to delimit, when the gripping handle 25 occupies the gripping position, a gripping passage suitable for receiving at least one finger of a user.

According to the embodiment shown in the figures, the actuator 22 comprises a handle housing 22.1 in which extends at least partially the gripping handle 25 when the gripping handle 25 occupies the rest position.

Advantageously, the grip handle 25 may include a grip projection which projects out of the grip housing 22.1 when the grip handle 25 occupies the rest position and which is configured to be gripped by a user when the grip handle. 25 occupies the rest position so as to be able to move the grip handle 25 from the rest position to the grip position.

The gripping handle 25 is more particularly configured to move the actuating member 22 from the first actuating position to the second actuating position when a first torque is applied to the gripping handle 25 by a user. in a first direction of rotation, and to move the actuator 22 from the second actuation position to the first actuation position when a second torque is applied to the gripping handle 25 by a user in a second direction of rotation opposite to the first direction of rotation.

According to the embodiment shown in the figures, the closure cap 16 comprises a fixing cover 26 which is fixed to the stopper body 17. The fixing cover 26 and the stopper body 17 define a mounting housing in which is mounted the actuator 22, and are configured to allow only a rotational movement of the actuator 22 relative to the stopper body 17. Advantageously, the fixing cover 26 is annular, extends around of the actuator 22 and partially covers the actuator 22.

According to the embodiment shown in the figures, the actuator 22 comprises a reading mark 27 and the fixing cover comprises a locking mark 28 and a release mark 29 which are angularly offset with respect to the axis of rotation A of the rotating brush 12. The reading mark 27 is configured to be located opposite the release mark 29 when the actuator 22 occupies the first actuation position and to be located opposite the reference mark. locking 28 when the actuator 22 occupies the second actuation position.

The suction head 2 comprises a foolproofing device 31 configured to impose a relative angular orientation between the closure plug 16 and the main body 4 when inserting the plug body 17 into the passage opening 13. According to the embodiment shown in the figures, the coding device comprises a pair of coding elements 32, such as two coding ribs, provided on the stopper body 17, and the passage opening 13 has a non-circular shape.

The suction head 2 also comprises a drive device 33 configured to drive the rotating brush 12 in rotation around the axis of rotation A of the latter. The drive device 33 more particularly comprises an electric drive motor 34, the output axis of which can be substantially aligned with the axis of rotation A of the rotating brush 12. According to the embodiment shown in the figures, the electric drive motor 34 is housed in the brush body 14 of the rotating brush 12. According to an alternative embodiment not shown in the figures, the electric drive motor 34 could be offset with respect to the axis of rotation A by the rotating brush 12.

Advantageously, the rotating brush 12 comprises a first end portion 12.1 configured to be coupled in rotation to the drive device 33, and a second end portion 12.2 supported by the closure cap 16 and mounted to be movable in rotation by in relation to the closure cap 16. According to the embodiment shown in the figures, the drive device 33 comprises a coupling member 35 which is integral in rotation with the output shaft of the electric drive motor 33 and which is rotatably coupled with the first end portion 12.1 of the rotating brush 12.

In order to remove the rotating brush 12 from the receiving housing 9, for example to clean the rotating brush 12 or replace the latter, the user moves the gripping handle 25 into the gripping position and applies a torque of rotation on the gripping handle 25 so as to move the actuator 22 into the first actuation position. Such a movement of the actuating member 22 causes a movement of the locking members 18 in the released position. The user can then easily remove the rotating brush 12 from the receiving housing 9 by exerting a pulling force on the gripping handle 25 in order to clean or replace the rotating brush 12.

When the user wishes to reposition the rotating brush 12 in the receiving housing 9, he inserts the rotating brush 12 into the receiving housing 9 until the latter mates with the coupling member 18, then applies a torque on the gripping handle 25 so as to move the actuator 22 into the second actuation position. Such a movement of the actuating member 22 causes a movement of the locking members 18 in the locking position. Finally, the user reposition the gripping handle 25 in the rest position.

Of course, the present invention is in no way limited to the embodiment described and illustrated which has been given only by way of example. Modifications remain possible, in particular from the point of view of the constitution of the various elements or by substitution of technical equivalents, without thereby departing from the scope of protection of the invention.

Claims (20)

Cleaning unit (11) for suction head, comprising: - a rotating brush (12) which is movable in rotation about an axis of rotation (A) and which is configured to be removably mounted in a receiving housing (9) delimited by a main body (4) of the suction head, and - a closing plug (16) which is configured to at least partially close a passage opening (13) provided on the main body (4) and through which the rotating brush (12) is able to be introduced into the housing of receiving (9) and withdrawn from the receiving housing (9), the rotating brush (12) being rotatable with respect to the closing cap (16), the closing cap (16) comprising a cap body (17) and locking means configured to lock the stopper body (17) on the main body (4), characterized in that the locking means comprise at least one locking member (18) which is movable relative to the stopper body (17) between a locking position in which the at least one locking member (18) cooperates with at least one locking member provided on the main body (4) so as to prevent a withdrawal of the rotating brush (12) from the receiving housing (9) and a release position in which the at least one locking member (18) releases the at least one locking element so as to allow withdrawal of the rotating brush (12) from the receiving housing (9),
in that the closure cap (16) comprises an actuator (22) capable of moving between a first actuation position and a second actuation position,
in that the actuator (22) comprises at least one cam surface (23.1, 23.2), and
in that the at least one locking member (18) has at least one contact surface which contacts the cam surface (23.1, 23.2) and which is configured to move along the cam surface (23.1, 23.2) ) such that when the actuator (22) is moved between the first actuation position and the second actuation position, the contact surface moves along the cam surface (23.1, 23.2) to cause a movement of the at least one locking member (18) between the release position and the locking position. Cleaning unit (11) according to the preceding claim, in which the actuating member (22) is mounted to be movable in rotation about an actuating axis which is substantially parallel to the axis of rotation (A) of the rotating brush (12). A cleaning unit (11) according to claim 1 or 2, wherein the at least one locking member (18) is movable relative to the stopper body (17) in a direction of movement which extends transversely to the axis of rotation (A) of the rotating brush (12). Cleaning unit (11) according to the preceding claim, in which the direction of movement of the at least one locking member (18) is substantially radial with respect to the axis of rotation (A) of the rotating brush (12) . A cleaning unit (11) according to any preceding claim, wherein the at least one locking member (18) is configured to protrude radially from an outer periphery of the body of the cleaning device. stopper (17) when the at least one locking member (18) occupies the locking position. A cleaning unit (11) according to any one of the preceding claims, wherein the at least one locking member (18) is slidably mounted relative to the stopper body (17). A cleaning unit (11) according to any one of the preceding claims, wherein the at least one cam surface (23.1, 23.2) extends transversely to the axis of rotation (A) of the rotating brush (12) . A cleaning unit (11) according to any one of the preceding claims, wherein the at least one contact surface is formed by an outer surface of a lug (24) which protrudes from the locking member (18) and which is configured to slide on the at least one cam surface (23.1, 23.2). Cleaning unit (11) according to the preceding claim, in which the lug (24) projects from the locking member (18) in a direction which is parallel to the axis of rotation (A) of the rotating brush ( 12). A cleaning unit (11) according to any one of the preceding claims, wherein the actuator (22) has at least one cam groove (23) in which the at least one cam surface (23.1) is formed. , 23.2). Cleaning unit (11) according to the preceding claim, in which the at least one cam groove (23) extends transversely to the axis of rotation (A) of the rotating brush (12). Cleaning unit (11) according to one of claims 10 or 11, wherein the lug (24) is received in the cam groove (23) and slides in the cam groove (23) so that when the actuator (22) is moved between the first actuation position and the second actuation position, the lug (24) moves in the cam groove (23) by sliding on the at least one cam surface (23.1, 23.2) and causes movement of the locking member (18) between the release position and the locking position. A cleaning unit (11) according to one of claims 10 to 12, wherein the at least one cam groove (23) has a first cam surface (23.1) which is configured to move the at least one cam member. locking (18) from the release position to the locking position when the actuator (22) is moved from the first actuation position to the second actuation position, and a second cam surface (23.2) which is configured to move the at least one locking member (18) from the locked position to the released position when the actuator (22) is moved from the second actuation position to the first position d 'actuation. Cleaning unit (11) according to one of claims 1 to 7, wherein the contact surface is formed by a peripheral surface of a roller which is rotatably mounted on the locking member (18) and which is configured to roll on the cam surface (23.1, 23.2). A cleaning unit (11) according to any one of claims 1 to 14, wherein the locking means comprises a plurality of locking members (18) which are angularly offset from each other with respect to the axis of rotation (A) of the rotating brush (12), preferably three locking, the actuator (22) having a corresponding number of cam surfaces (23.1, 23.2). A cleaning unit (11) according to any one of claims 1 to 15, wherein the closure cap (16) has a grip handle (25) configured to be gripped by a user. A cleaning unit (11) according to any one of claims 1 to 16, in which the rotating brush (12) is guided in rotation in or around the stopper body (17). Suction head including: - a main body (4) comprising a receiving housing (9) opening into a lower face of the main body (4) which is configured to be oriented towards a surface to be cleaned, a passage opening (13) opening into the housing of reception (9), and at least one locking element, and - a cleaning unit (11) according to any one of the preceding claims, the rotating brush (12) being removably mounted in the receiving housing (9), the closure cap (16) at least partially closing the passage opening (13) and at least one locking member (18) cooperating with the at least one locking member. A suction head according to claim 18, wherein the at least one locking member has at least one locking groove (19) in which the at least one locking member (18) is configured to engage when the 'at least one locking member (18) occupies the locking position. A suction head according to claim 18 or 19, wherein the at least one locking member (18) and the stopper body (17) are stationary in rotation relative to the receiving housing (9) when the stopper body (17) is locked to the main body (4).

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