Cleaning Unit For Suction Head

Description

TECHNICAL FIELD

The present invention concerns the field of vacuum cleaners equipped with a suction head allowing sucking up dust and waste present on a surface to be cleaned.

STATE OF THE ART

The vacuum cleaners equipped with a suction head are well known on the market, as they allow cleaning surfaces by suction to remove dust and waste of small particle size resting on them. 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 including a soleplate provided with a lower face and a suction orifice opening into the lower face of the soleplate. The lower face of the soleplate is intended to be positioned adjacent to the surface to be vacuumed during use of the suction head.

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

• • a rotating brush which is rotatably movable 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 cap which is configured to at least partially close a passage opening provided on the main body and through which the rotating brush is able to be inserted into and removed from the receiving housing, the rotating brush being rotatable relative to the closure cap.

In order to ensure a retention of the rotating brush in the receiving housing, the closure cap advantageously includes a cap body and locking means provided on the cap body and configured to lock the cap body onto the main body.

Document FR3094624 discloses a closure cap whose locking means include several locking members movable relative to the cap body between a locking position in which the locking members are configured to cooperate with locking elements, such as locking grooves, provided on the main body so as to prevent removal of the rotating brush from the receiving housing, and a release position in which the locking members are configured to release the locking elements so as to authorize a removal of the rotating brush from the receiving housing.

The closure cap described in document FR3094624 further includes an actuating member provided with several drive pins engaged respectively in circular openings provided on the locking members, and movably mounted in rotation relative to the cap body between a first actuating position and a second actuating position. The actuating member and the locking members are configured such that a displacement of the actuating member from the first actuating position to the second actuating position causes a displacement of the locking members from the locking position to the release position, and such that a displacement of the actuating member from the second actuating position to the first actuating position causes a displacement of the locking members from the release position to the locking position.

Such a configuration of the closure cap allows a locking/unlocking of the cap body only by displacing the actuating member between the first and second actuating positions, which ensures easy and ergonomic removal of the rotating brush from the receiving housing.

Furthermore, such a configuration of the closure cap ensures effective holding of the cap body in the passage opening and thus of the rotating brush in the receiving housing.

However, the assembly of such a closure cap, due to the large number of parts constituting it, is complex, which increases the manufacturing costs of such a closure cap.

In addition, when a user wishes to reposition the rotating brush in the receiving housing, for example after cleaning the rotating brush, he must first fully insert the rotating brush into the receiving housing, and secondly displace the actuating member into the first actuating position, so as to lock the closure cap on the main body of the suction head. Yet, such manipulation of the actuating member, after insertion of the rotating brush into the receiving housing, is not necessarily intuitive for all users and is therefore likely to be forgotten by some users, which can cause subsequent degradation of the rotating brush due to a coupling defect between the latter and its rotation drive device.

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 which is of simple and economical structure, while ensuring easy and ergonomic locking of the cap body onto the main body of the suction head.

For this purpose, the present invention concerns a cleaning unit for a suction head, comprising:

• • a rotating brush which is rotatably movable 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 cap which is configured to at least partially close a passage opening provided on the main body and through which the rotating brush is able to be inserted into the receiving housing and removed from the receiving housing, the rotating brush being rotatable relative to the closure cap, the closure cap including:
  • a cap body,
  • locking means configured to lock the cap body onto the main body, the locking means including at least one locking member which is movable relative to the cap body between a locking position in which the at least one locking member is configured to cooperate with at least one locking element provided on the main body so as to prevent a removal of the rotating brush from the receiving housing and a release position in which the
  • at least one locking member is configured to release the at least one locking element so as to authorize a removal of the rotating brush from the receiving housing, and an actuating member movably mounted relative to the cap body between a first actuating position and a second actuating position, the actuating member and the at least one locking member being configured such that a displacement of the actuating member from the first actuating position to the second actuating position causes a displacement of the at least one locking member from the locking position to the release position.

The at least one locking member is elastically deformable, and the closure cap is configured such that the at least one locking member is elastically compressed when the at least one locking member is displaced towards the release position and such that the at least one locking member elastically relaxes towards the locking position when the at least one locking member occupies the release position.

When a user wishes to reposition the rotating brush of the cleaning unit according to the present invention in the receiving housing delimited by a main body of the suction head and lock the cap body onto the main body of the suction head, for example after cleaning or replacing the rotating brush, he simply has to insert the rotating brush into the receiving housing via the passage opening until the closure cap at least partially closes the passage opening. Indeed, at this moment, the at least one locking member elastically and automatically relaxes towards the locking position so as to lock the cap body onto the main body of the suction head.

Such a configuration of the closure cap therefore ensures an automatic, easy and ergonomic locking of the cap body on the main body of the suction head.

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

According to an embodiment of the invention, the at least one locking member extends at least partly about the actuating member.

According to an embodiment of the invention, when the at least one locking member is displaced towards the release position, the at least one locking member is configured to be elastically compressed in a compression direction having at least one component oriented radially toward the inside of the closure cap relative to the axis of rotation of the rotating brush, and, when the at least one locking member occupies the release position, at least one locking member is configured to relax at least partially, towards the locking position, in a relaxation direction having at least one component oriented radially toward the outside of the closure cap relative to the axis of rotation of the rotating brush.

According to an embodiment of the invention, the at least one locking member is secured in movement to the actuating member at least during a displacement of the actuating member from the first actuating position towards the second actuating position.

According to an embodiment of the invention, the actuating member is movably mounted in rotation about an actuating axis that is substantially parallel to the axis of rotation of the rotating brush.

According to an embodiment of the invention, the actuating axis and the axis of rotation are substantially colinear.

According to an embodiment of the invention, the actuating member is rotatably movable between the first actuating position and the second actuating position, the at least one locking member being secured in rotation to the actuating member at least during a displacement of the actuating member from the first actuating position towards the second actuating position.

According to an embodiment of the invention, the at least one locking member and the actuating member are made in a one piece. In other words, the at least one locking member and the actuating member are unitary, and are for example integrally molded. These provisions make it possible to greatly simplify the assembly of the closure cap, and therefore to significantly reduce the manufacturing costs of the latter.

According to an embodiment of the invention, the cap body includes at least one deformation surface configured to elastically deform the at least one locking member when the at least one locking member is displaced into the release position.

According to an embodiment of the invention, the cap body includes at least one deformation ramp comprising the at least one deformation surface.

According to another embodiment of the invention, the cap body includes a deformation pin comprising the at least one deformation surface.

According to an embodiment of the invention, the at least one deformation surface extends transversely to the axis of rotation of the rotating brush.

According to an embodiment of the invention, the at least one deformation surface, preferably the at least one deformation ramp, is curved. The at least one deformation surface, preferably the at least one deformation ramp, may for example have an arc shape or have a progressive radius of curvature. Such a configuration of the at least one deformation surface ensures smooth deformation of the at least one locking member, and limits the risks of breakage of the latter.

According to an embodiment of the invention, when the at least one locking member occupies the release position, the at least one locking member is configured to elastically bias the actuating member towards the first actuating position. Such a configuration of the closure cap ensures an automatic displacement of the actuating member from the second actuating position to the first actuating position, without requiring the presence of an additional return member. These provisions make it possible to further simplify the structure of the closure cap, and therefore to further limit the manufacturing costs of the latter.

According to an embodiment of the invention, the at least one locking member includes a connecting branch that extends from the actuating member, and for example from an outer peripheral surface of the actuating member, and which is elongated and elastically deformable, and a locking part that extends from the connecting branch and that is configured to cooperate with the at least one locking element provided on the main body.

According to an embodiment of the invention, the connecting branch extends at least partially about the axis of rotation.

According to an embodiment of the invention, the connecting branch extends at least partially about the actuating member.

According to an embodiment of the invention, the locking part is formed at a distal end of the at least one locking member. Advantageously, the locking part takes the form of a locking bolt formed at the distal end of the at least one locking member.

According to an embodiment of the invention, the connecting branch is connected to the actuating member at a connecting area, the locking part and the connecting area being angularly offset relative to the axis of rotation. These arrangements make it easier for the locking part to be displaced relative to the cap body when the at least one locking member is displaced between the locking position and the release position.

According to an embodiment of the invention, the at least one locking member has a width that varies along its length.

According to an embodiment of the invention, the locking part has a first maximum width and the connecting branch has a second maximum width that is less than the first maximum width. These arrangements make it easier for the connecting branch to be elastically deformed when the at least one locking member is displaced between the locking position and the release position, while ensuring a secure locking of the locking cap when the at least one locking member occupies the locking position.

According to an embodiment of the invention, the connecting branch is configured to slide on the at least one deformation surface such that, when the actuating member is displaced, and advantageously displaced in rotation, from the first actuating position towards the second actuating position, the connecting branch is deformed elastically towards the axis of rotation and causes the at least one locking member to be displaced towards the release position.

According to an embodiment of the invention, the at least one locking member includes a first curved portion having a concavity that is oriented towards the inside of the closure cap, and a second curved portion having a concavity that is oriented towards the outside of the closure cap. These arrangements give greater elasticity to the at least one locking member, and limit the risks of the latter breaking.

According to an embodiment of the invention, the at least one locking member has an overall S shape.

According to an embodiment of the invention, the at least one locking member, more specifically the locking part of the at least one locking member, is configured to protrude, for example substantially radially, from an outer periphery of the cap body when the at least one locking member occupies the locking position.

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

According to an embodiment of the invention, the actuating member can be manually actuated from outside the suction head when the cap body is locked onto the main body. According to an embodiment of the invention, the cap body includes at least one passage orifice, for example provided on an outer peripheral surface of the cap body, through which the at least one locking member projects when the at least one locking member occupies the locking position.

According to an embodiment of the invention, the cap body includes at least one guide member, such as a guide wall, which is configured to guide, for example substantially radially, the locking part of the at least one locking member when the at least one locking member is displaced between the locking position and the release position. Advantageously, the guide member extends substantially to the at least one passage orifice.

According to an embodiment of the invention, the at least one deformation surface extends substantially to the at least one passage orifice.

According to an embodiment of the invention, the at least one deformation surface and the at least one guide member are arranged on either side of the at least one passage orifice.

According to an embodiment of the invention, the closure cap includes an angular stroke limitation device configured to limit an angular stroke of the actuating member relative to the cap body. The angular stroke limitation device includes a first end-of-travel stop configured to prevent a rotation of the actuating member, in a first direction of rotation, beyond the second actuating position, and a second end-of-travel stop configured to prevent a rotation of the actuating member, in a second direction of rotation, beyond the first actuating position. These arrangements in particular prevent the at least one locking member from penetrating entirely inside the cap body and coming to rest between the actuating member and an inner peripheral wall of the cap body, which would be likely to render the closure cap inoperative. Thus, such a configuration of the closure cap gives it greater reliability.

According to an embodiment of the invention, each of the first and second end-of-travel stops is provided on the cap body.

According to an embodiment of the invention, each of the first and second end-of-travel stops includes a contact zone against which a respective bearing surface secured in rotation to the actuating member is configured to bear. The two bearing surfaces may for example be provided on a bearing lug provided on the actuating member.

According to an embodiment of the invention, the actuating member includes a gripping part configured to be grasped by a user, for example when removing the rotating brush from the receiving housing. The presence of such a gripping part makes it possible to facilitate, on the one hand, a displacement of the actuating member between the first actuating position and the second actuating position, and, on the other hand, the removal of the rotating brush from the receiving housing, for example to clean it.

According to an embodiment of the invention, the actuating member is configured to be displaced from the first actuating position towards the second actuating position when a torque is applied to the gripping part by a user.

According to an embodiment of the invention, the locking part of the at least one locking member includes a chamfer configured to cooperate with the main body when inserting the closure cap into the passage opening, so as to urge the at least one locking member towards the release position. Such a configuration of the locking means allows a user to insert the cleaning unit into the receiving housing without requiring prior displacement of the actuating member into the second actuating position, which further facilitates the locking of the closure cap onto the main body.

According to an embodiment of the invention, the locking means include a plurality of locking members that are angularly offset from each other relative to the axis of rotation of the rotating brush. Such a configuration of the locking means ensures optimum locking of the closure cap on the main body.

According to an embodiment of the invention, the locking members extend in the same extension plane. Such a configuration of the locking means gives great compactness to the closure cap.

According to an embodiment of the invention, the extension plane extends substantially perpendicular to the axis of rotation of the rotating brush.

According to an embodiment of the invention, the rotating brush is guided in rotation in or about the cap body.

According to an embodiment of the invention, the closure cap includes a fixing cover which is fixed to the cap body and which partially covers the actuating member. The fixing cover and the cap body advantageously delimit a mounting housing in which the actuating member is mounted. The fixing cover may for example be provided with an access opening configured to allow access to the gripping part provided on the actuating member.

According to an embodiment of the invention, the actuating member includes a reading mark and the closure cap includes a release mark which is rotationally immobile relative to the cap body, the reading mark being configured to be located opposite the release mark when the actuating member occupies the second actuating position. Advantageously, the release mark is provided on the fixing cover.

According to an embodiment of the invention, the rotating brush is configured to be removably mounted in the receiving housing in a mounting direction that extends transversely, and preferably perpendicularly, to a direction of displacement of the suction head.

The present invention further concerns a suction head comprising:

• • a main body including a receiving housing opening into a lower face of the main body that is configured to be oriented towards a surface to be cleaned, a passage opening emerging 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 cap at least partially closing the passage opening and the at least one locking member cooperating with the at least one locking element.

According to an embodiment of the invention, the at least one locking element includes at least one stop surface against which the at least one locking member is configured to bear when the at least one locking member occupies the locking position, the at least one stop surface being configured to prevent a displacement of the closure cap relative to the main body in a direction of removal of the rotating brush from the receiving housing.

According to an embodiment of the invention, the at least one stop surface has a normal that is substantially parallel to the axis of rotation of the rotating brush.

According to an embodiment of the invention, the at least one locking element includes at least one locking housing in which the at least one locking member is configured to be engaged when the at least one locking member occupies the locking position. Advantageously, the at least one locking housing is delimited in part by the stop surface.

According to an embodiment of the invention, the at least one locking housing extends at least partly about the passage opening.

According to an embodiment of the invention, the at least one locking housing is a locking groove, a locking notch or a circular locking hole.

According to another embodiment of the invention, the at least one locking element includes a locking rib or a locking lug provided with the stop surface.

According to an embodiment of the invention, the at least one locking member and the cap body are rotationally immobile relative to the receiving housing when the cap body is locked onto the main body.

According to an embodiment of the invention, the suction head includes a foolproofing device configured to impose a relative angular orientation between the closure cap and the main body when the cap body is inserted into the passage opening.

According to an embodiment of the invention, the foolproofing device includes at least one foolproofing element, such as a foolproofing rib, provided on the closure cap, and at least one foolproofing member, such as a foolproofing groove, 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 an embodiment of the invention, the suction head includes a drive device configured to rotatably drive the rotating brush about the axis of rotation.

According to an embodiment of the invention, the rotating brush includes 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 movably mounted in rotation relative to the closure cap.

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

BRIEF DESCRIPTION OF THE FIGURES

In any case, the invention will be better understood with the aid of the description which follows with reference to the appended schematic drawings representing, by way of non-limiting example, an embodiment of this suction head.

FIG. 1 is a partial three-quarter front view of a suction head according to the present invention.

FIG. 2 is a partial three-quarter front view of the suction head of FIG. 1.

FIG. 3 is a partial perspective sectional view of the suction head of FIG. 1, in which a fixing cover of a closure cap of the suction head has been removed.

FIG. 4 is a partial perspective view of the suction head of FIG. 1, in which a cleaning unit of the suction head has been removed.

FIG. 5 is a longitudinal sectional view of the suction head of FIG. 1.

FIG. 6 is a front view of the closure cap, showing the locking members in the locking position.

FIG. 7 is a front perspective view of the closure cap, showing the locking members in the locking position.

FIG. 8 is a rear perspective view of the closure cap, showing the locking members in the locking position.

FIG. 9 is a perspective view of an actuating member and locking members belonging to the closure cap.

FIG. 10 is a perspective view of a cap body of the closure cap.

FIG. 11 is a cross-sectional view of the closure cap, showing the locking members in the locking position.

FIG. 12 is a cross-sectional view of the closure cap, showing the locking members in the release position.

DETAILED DESCRIPTION

FIGS. 1 to 12 show a suction head 2 comprising a connection sleeve 3 to which a tip of a rigid or flexible tube is intended to be connected, itself connected to a suction system of a vacuum cleaner (not illustrated). 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 comprises a main body 4 configured to be displaced on a surface to be cleaned. The main body 4 comprises a soleplate 5 provided with a lower face 6 configured to be oriented towards the surface to be cleaned, and a suction orifice 7 opening onto the lower face 6. The suction orifice 7 communicates with the connection sleeve 3 in particular by means of a connecting passage formed at least in part for example by a flexible connecting conduit. The suction orifice 7 may, for example, have an elongated shape and extend transversely, and for example perpendicularly, to a direction of displacement D1 of the suction head 2.

The main body 4 further comprises a receiving housing 9 which opens into the lower face 6 of the soleplate 5 via the suction orifice 7, and which is fluidically 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 including a rotating brush 12 which is movably mounted in rotation 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 inserted into and removed from the receiving housing 9 along a mounting direction D2. The mounting direction D2 extends transversely, and preferably perpendicularly, to the direction of displacement D1 of the suction head 2.

As shown in FIG. 4, the main body 4 includes a passage opening 13 opening into the receiving housing 9 and through which the rotating brush 12 can be inserted into and removed from the receiving housing 9. 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 includes 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 cross-section, and the rotating brush 12 includes one or more rows of bristles extending for example helically about the central axis of the rotating brush 12. According to an embodiment not shown in the figures, the bristle rows could be replaced by elastically deformable strips or by a foam cleaning sleeve.

The cleaning unit 11 further includes 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 includes a cap body 17 and locking means configured to lock the cap body 17 onto the main body 4.

The locking means include at least one locking member 18, advantageously three locking members 18, which are movably mounted, relative to the cap body 17, between a locking position in which the locking members 18 cooperate with at least one locking element 19, and for example a single locking element 19, provided on the main body 4 so as to prevent removal of the rotating brush 12 from the receiving housing 9, and a release position in which the locking members 18 release the locking element 19 so as to allow removal of the rotating brush 12 from the receiving housing 9.

According to an embodiment of the invention, the locking element 19 is formed by a single locking housing, such as a locking groove, extending at least partly about the passage opening 13, and each locking member 18 is configured to be engaged in the locking housing when the locking members 18 occupy the locking position. According to another embodiment of the invention, the locking means could include a plurality of locking elements 19, for example formed by locking housings such as locking grooves, which are angularly offset from each other relative to the axis of rotation A of the rotating brush 12 and in each of which a respective locking member 18 is intended to be received.

According to the embodiment shown in the figures, the locking element 19 includes one or more stop surfaces 190 (see FIG. 3) against which the locking members 18 are configured to bear when the locking members occupy the locking position. The stop surface(s) 190 is (are) configured to prevent a displacement of the closure cap 16 relative to the main body 4 in a direction of removing the rotating brush 12 from the receiving housing 9. The or each stop surface 190 may, for example, have a normal which is substantially parallel to the axis of rotation A of the rotating brush 12.

According to the embodiment shown in the figures, the locking members 18 are distributed about the axis of rotation A of the rotating brush 12, and extend in the same extension plane which is substantially perpendicular to the axis of rotation A of the rotating brush 12. Advantageously, each locking member 18 has an overall S shape, and includes a first curved portion 18.1 having a concavity which is oriented towards the inside of the closure cap 16, and a second curved portion 18.2 having a concavity which is oriented towards the outside of the closure cap 16.

The locking members 18 are configured to project from the outer periphery 21 of the cap body 17 when the locking members 18 occupy the locking position (see FIGS. 6 to 8), and are configured to be located set back from or to be substantially flush with the external periphery 21 of the cap body 17 when the locking members 18 occupy the release position (see FIG. 12). According to the embodiment shown in the figures, the cap body 17 includes a plurality of passage orifices 22 provided on the outer peripheral surface of the cap body 17, and each of the locking members 18 is configured to protrude through a respective passage orifice 22 when the locking members 18 occupy the locking position.

Advantageously, the locking members 18 and the cap body 17 are rotationally immobile relative to the receiving housing 9 when the cap body 17 is locked onto the main body 4.

The closing cap 16 also includes an actuating member 23 which is configured to displace the locking members 18 from the locking position to the release position, and which can be manually actuated from outside the suction head 2 when the cap body 17 is locked onto the main body 4. Advantageously, the locking members 18 are rotatably secured to the actuating member 23. According to the embodiment shown in the figures, the locking members 18 and the actuating member 23 are made in one piece, that is to say are unitary. As shown more particularly in FIGS. 9 and 11, each locking member 18 extends partly about the actuating member 23, and includes a connecting branch 181 which extends from the actuating member 23, and for example from the outer peripheral surface of the actuating member 23, and which is elongated and elastically deformable, and a locking part 182 which extends from the respective connecting branch 181 and which is configured to cooperate with the at least one locking element 19 provided on the main body 4. Each connecting branch 181 extends at least partly about the actuating member 23 and therefore about the axis of rotation A. Advantageously, each connecting branch 181 is connected to the actuating member 23 at a respective connecting area 183, and each locking part 182 and the respective connecting area 183 are angularly offset relative to the axis of rotation A.

According to the embodiment shown in the figures, the locking part 182 of each locking member 18 is formed at a distal end of the respective locking member 18. Advantageously, each locking part 182 takes the form of a locking bolt formed at the distal end of the respective locking member 18.

As shown in FIG. 11, the locking part 182 of each locking member 18 has a maximum width which is greater than the maximum width of the respective connecting branch 181.

According to the embodiment shown in the figures, the actuating member 23 is movably mounted in rotation relative to the cap body 17, about an actuating axis which is colinear with the axis of rotation A of the rotating brush 12, and between a first actuating position (see FIG. 2) and a second actuating position (see FIG. 12). The actuating member 23 and the locking members 18 are configured such that a rotation of the actuating member 23 from the first actuating position to the second actuating position causes a displacement of the locking members 18 from the locking position to the release position.

According to the embodiment shown in the figures, the cap body 17 includes a plurality of deformation ramps 24 each including a deformation surface 25 configured to elastically deform the connecting branch 181 of a respective locking member 18 when the locking members 18 are displaced into the release position. Advantageously, each deformation surface 25 extends transversely to the axis of rotation A of the rotating brush 12, and is curved. Each deformation surface 25 may for example have an arc shape or have a progressive radius of curvature. According to the embodiment shown in the figures, each deformation surface 25 extends substantially to a respective passage orifice 22.

The deformation surfaces 25 and the locking members 18 are more particularly configured such that, when the locking members 18 are displaced towards the release position, each locking member 18 is elastically compressed by the respective deformation surface 25 in a compression direction having at least one component that is oriented radially relative to the axis of rotation A of the rotating brush 12 and towards the inside of the closure cap 16, and such that, when the locking members 18 occupy the release position, each locking member 18 is configured to elastically and automatically relax, towards the locking position, in a relaxation direction having at least one component that is oriented radially relative to the axis of rotation A of the rotating brush 12 and towards the outside of the closure cap 16. In addition, when the locking members 18 occupy the release position, the locking members 18 are configured to elastically bias the actuating member 23 towards the first actuating position

According to the embodiment shown in the figures, the connecting branch 181 of each locking member 18 is configured to slide on the respective deformation surface 25 such that, when the actuating member 23 is displaced from the first actuating position to the second actuating position, said connecting branch 181 is elastically deformed towards the axis of rotation A and causes a displacement of the respective locking part 182 to the release position.

Advantageously, the cap body 17 further includes a plurality of guide members 26, such as guide walls, which each extend substantially to a respective passage orifice 22. Each guide member 26 is configured to guide, for example substantially radially, the locking part 182 of the respective locking member 18 when the respective locking member 18 is displaced between the locking position and the release position. According to the embodiment shown in the figures, the deformation surface 25 and the guide member 26, which are associated with the same passage orifice 22, are arranged on either side of said passage orifice 22.

The closure cap 16 also includes an angular stroke limitation device configured to limit an angular stroke of the actuating member 23 relative to the cap body 17. The angular stroke limitation device more particularly includes a first end-of-travel stop configured to prevent a rotation of the actuating member 23, in a first direction of rotation, beyond the second actuating position, and a second end-of-travel stop configured to prevent rotation of the actuating member 23, in a second direction of rotation, beyond the first actuating position. Advantageously, each of the first and second end-of-travel stops is provided on the cap body 17, and includes a contact zone against which a respective bearing surface secured in rotation to the actuating member 23 is configured to bear. The two bearing surfaces may for example be provided on a bearing lug provided on the actuating member 23.

The closure cap 16 further includes a gripping part 28 configured to be grasped by a user, for example to allow removal of the rotating brush 12 from the receiving housing 9. The gripping part 28 may for example have a rectilinear shape or any other shape. The gripping part 28 is more particularly configured to displace the actuating member 23 from the first actuating position to the second actuating position when a rotational torque is applied to the gripping part 28 by a user.

According to the embodiment shown in the figures, the closure cap 16 includes a fixing cover 29 which is fixed to the cap body 17. The fixing cover 29 and the cap body 17 delimit a mounting housing 31 in which the actuating member 23 and the connecting branches 181 are mounted. Advantageously, the fixing cover 29 partially covers the actuating member 23, and includes an access opening 32 configured to allow access to the gripping part 28 provided on the actuating member 23.

According to the embodiment shown in the figures, the actuating member 23 includes a reading mark, which can for example be formed by one end of the gripping part 28, and the fixing cover 29 includes a release mark 34. The reading mark is configured to be located opposite the release mark 34 when the actuating member 23 occupies the second actuating position.

Advantageously, the suction head 2 includes a foolproofing device 35 configured to impose a relative angular orientation between the closure cap 16 and the main body 4 when inserting the cap body 17 into the passage opening 13. According to the embodiment shown in the figures, the foolproofing device 35 includes a pair of foolproofing elements, such as two foolproofing ribs, provided on the cap body 17, and the passage opening 13 has a non-circular shape.

The suction head 2 also includes a drive device 36 configured to rotatably drive the rotating brush 12 about the axis of rotation A of the latter. The drive device 36 more particularly comprises an electric drive motor 37 whose output axis 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 37 is housed in the brush body 14 of the rotating brush 12. Advantageously, the rotating brush 12 includes a first end portion 12.1 configured to be supported by a support element provided on the main body 4 and movably mounted in rotation relative to the support element, and a second end portion 12.2 supported by the closure cap 16 and movably mounted in rotation relative to the closure cap 16. 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 applies a torque to the gripping part 28 so as to displace the actuating member 23 in the second actuating position. Such a displacement of the actuating member 23 causes a displacement of the locking members 18 into the release position. The user can then easily remove the rotating brush 12 from the receiving housing 9 by exerting a pulling force on the gripping part 28 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 drive device 36 and the closure cap 16 at least partially closes the passage opening 13. At this moment, the locking members 18 elastically and automatically relax towards the locking position so as to lock the cap body 17 onto the main body 4 of the suction head 2. Such a deformation of the locking members 18 causes a displacement of the actuating member 23 into the first actuating position, due to the cooperation of each of the connecting branches 181 with the respective deformation surface 25.

According to the embodiment shown in the figures, the locking part 182 of each locking member 18 includes a chamfer 182.1 configured to cooperate with the main body 4 when inserting the closure cap 16 into the passage opening 13, so as to urge the respective locking member 18 towards the release position. Such a configuration of the locking means allows a user to insert the cleaning unit 11 into the receiving housing 9 without requiring prior displacement of the actuating member 23 into the second actuating position, which further facilitates the locking of the closure cap 16 on the main body 4.

Of course, the present invention is in no way limited to the embodiment described and illustrated which has been given only as an 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 departing from the scope of protection of the invention.