ES2912096T3 - Vacuum cleaner nozzle equipped with a locking device to lock at least one brush in the lowered position - Google Patents

Abstract

Vacuum cleaner nozzle (2), comprising a sole (6), provided with a lower face (7) and a suction cavity (8) that opens into the lower face (7), at least one brush (13.1, 13.2, 13.3) and a coupling sleeve (3), configured for fluid communication with the suction cavity (8), said vacuum cleaner nozzle (2) comprising a brush drive mechanism (14), comprising a control lever ( 15) configured to occupy at least a first position of the control lever and a second position of the control lever, the brush drive mechanism (14) being configured so that when the control lever (15) is moved in the first position of the control lever, lower the at least one brush (13.1, 13.2, 13.3) and place it in a lowered position, in which the at least one brush protrudes from the underside (7), and being configured for, when the joystick (15) is moved to the second joystick position, raise the at least one brush (13.1, 13.2, 13.3) and place it in a raised position, in which the at least one brush is set back with respect to the lower face (7), said brush drive mechanism (14) also comprising an orientation system for the control lever (16), configured to maintain the control lever (15) in at least the first and second position of the control lever, characterized in that the brush drive mechanism (14) also comprises, in addition to the control lever orientation system (16), a locking device (26), configured to lock the at least one brush (13.1, 13.2, 13.3) in the lowered position.

Description

DESCRIPTION

Vacuum cleaner nozzle equipped with a locking device to lock at least one brush in the lowered position

technical sector

The present invention relates to the sector of vacuum cleaners equipped with a vacuum cleaner nozzle, also called a suction head, which allows dust and small particle residues present on a surface to be sucked up.

State of the art

Vacuum cleaners equipped with a vacuum cleaner nozzle are well known on the market, which allow surfaces to be cleaned by suction to remove dust and small particle size residues that are deposited on them. The surface to be vacuumed can be, for example, tiles, parquet, laminate, carpet or a rug.

Document FR3062562 describes a vacuum cleaner nozzle comprising a soleplate, provided with a lower face and a suction cavity that opens on the lower face, at least one brush and a connection sleeve, configured for fluid communication with the cavity. suction, said vacuum cleaner nozzle comprising a brush drive mechanism, comprising a joystick configured to occupy at least a first joystick position and a second joystick position, the drive mechanism being configured brush for, when the control lever is moved to the first position of the control lever, lowering the at least one brush and placing it in a lowered position, in which the at least one brush protrudes from the bottom, and which is configured to, when the joystick is moved to the second joystick position, raise the at least one brush and place it in a position raised position, in which the at least one brush is recessed with respect to the lower face, said brush drive mechanism also comprising a control lever orientation system configured to keep the control lever in at least the first and second positions of the joystick.

Such a vacuum cleaner nozzle is configured in such a way that, when the at least one brush is in the lowered position, the soleplate occupies a predetermined position which gives the vacuum cleaner nozzle optimum suction performance for vacuuming hard floors. .

In order to guarantee the maintenance of a predetermined distance to the ground when the at least one brush is in the lowered position (even when the user exerts considerable support on the vacuum cleaner nozzle), and this so as to guarantee suction performance optimal when vacuuming hard floors, the control lever orientation system is configured, more particularly, in such a way that the user must apply relatively large forces to the control lever to allow the latter to move from the first position joystick to the second joystick position.

However, the need to apply relatively large forces to the joystick to allow it to move between its different positions may be unpleasant for some users, or even make it difficult for some users to use the vacuum cleaner nozzle.

In addition, said configuration of the joystick orientation system can cause the breakage of certain plastic parts that constitute the joystick orientation system.

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 vacuum cleaner nozzle with a reliable and economical structure, while guaranteeing better suction performance.

To this end, the present invention refers to a vacuum cleaner nozzle comprising a soleplate provided with a lower face and a suction cavity that opens into the lower face, at least one brush and a connection sleeve configured for fluid communication with the suction cavity, said vacuum cleaner nozzle comprising a brush drive mechanism comprising a control lever configured to occupy at least a first control lever position and a second control lever position, the control mechanism being configured brush drive for, when the joystick is moved to the first joystick position, lowering the at least one brush and placing it in a lowered position, in which the at least one brush protrudes from the bottom, and being configured to, when the control lever is moved to the second position of the control lever, raise the at least one brush and place it e n a raised position in which the at least one brush is set back with respect to the lower part, said brush drive mechanism also comprising a control lever orientation system configured to keep the control lever in at least the first and second positions of the control lever, characterized in that the brush drive mechanism also includes, in addition to the control lever orientation system, a device for lock, configured to lock the at least one brush in the lowered position.

Said configuration of the brush drive mechanism allows dissociating the orientation of the control lever from the locking of the at least one brush in the lowered position. These arrangements make it possible, in particular, on the one hand, to require less effort to ensure that the joystick remains in a position selected by the user and, therefore, to facilitate its movement by the latter, and, on the other hand, , guarantee a better locking of at least one brush in the lowered position.

In this way, the vacuum cleaner nozzle according to the present invention guarantees the maintenance of a predetermined distance from the ground when the at least one brush is in the lowered position (even when the user exerts significant support on the vacuum cleaner nozzle), and therefore therefore optimum suction performance when vacuuming hard floors.

In addition, disassociating the orientation of the control lever from the locking of the at least one brush in the lowered position makes it possible to simplify the locking kinematics of the at least one brush in the lowered position, and therefore to simplify the vacuum cleaner nozzle and increase its reliability.

The vacuum cleaner nozzle may further have one or more of the following features, taken alone or in combination.

According to an embodiment of the invention, the joystick is pivotally mounted with respect to the sole about an axis of rotation.

According to an embodiment of the invention, the axis of rotation of the control lever extends transversely with respect to a direction of movement of the vacuum cleaner nozzle.

According to an embodiment of the invention, the joystick is arranged above the sole.

According to an embodiment of the invention, the blocking device comprises a blocking element that is arranged vertically to the at least one brush, and that is configured to prevent the movement of the at least one brush from the lowered position to the raised position. Said arrangement of the blocking element provides a better rigidity to the blocking device and, therefore, a better maintenance of the at least one brush in the lowered position.

According to an embodiment of the invention, the blocking element is a rocker arm, which is mobile in rotation around an axis of rotation between a blocking position, in which the rocker arm prevents a displacement of the at least one brush from the lowered position to the raised position, and a release position, in which the rocker allows movement of the at least one brush from the lowered position to the raised position.

According to an embodiment of the invention, the rocker arm is oriented substantially vertically when, simultaneously, the rocker arm occupies the locking position and the sole rests flat on a surface to be vacuumed, and it is oriented substantially horizontally, when, simultaneously, the rocker occupies the release position and the soleplate rests flat on a surface to be vacuumed.

According to one embodiment of the invention, the axis of rotation of the rocker arm extends substantially transversely with respect to the axis of rotation of the control lever.

According to an embodiment of the invention, the rocker is mounted movably in rotation on the sole.

According to one embodiment of the invention, the brush actuation mechanism comprises a slider that is slidably mounted with respect to the sole, in a direction of displacement, and that is configured to occupy at least a first position of the slider, in in which the at least one brush is in the lowered position, and a second position of the slider, in which at least one brush is in the raised position, the brush drive mechanism being configured in such a way that the displacement of the joystick from the first joystick position to the second joystick position causes displacement of the slider from the first slider position to the second slider position, and such that displacement of the joystick from the second joystick position to the first joystick position causes a displacement of the slider from the second joystick position slider to the first slider position.

According to one embodiment of the invention, the slider comprises a rack configured to collaborate with a slotted part, integral in movement with the control lever. These provisions guarantee a flexible and progressive movement of the joystick between its different positions, which is a guarantee of a better feeling for the user.

According to an embodiment of the invention, the slotted part is provided on the joystick.

According to an embodiment of the invention, the rack extends substantially parallel to the direction of travel of the slider.

According to an embodiment of the invention, the slotted part comprises a slotted angular sector.

According to an embodiment of the invention, the slotted angular sector is provided with a sector axis that is coaxial with the axis of rotation of the joystick.

According to one embodiment of the invention, the brush drive mechanism is configured such that movement of the slider from the first slider position to the second slider position results in movement of the rocker arm from the lock position to the release position, and such that a displacement of the slider from the second slider position to the first slider position causes a displacement of the rocker arm from the release position to the locking position.

According to an embodiment of the invention, the slider comprises a roller, configured to cooperate with a rolling surface provided on the rocker arm.

According to an embodiment of the invention, the direction of movement of the slider is substantially vertical when the sole rests flat on a surface to be vacuumed.

According to an embodiment of the invention, the soleplate comprises at least one brush support on which the at least one brush is mounted, the at least one brush support being movable and, for example, slidably mounted, with relative to the sole between a first support position, in which the at least one brush is in the lowered position, and a second support position, in which the at least one brush is in the raised position.

According to an embodiment of the invention, the soleplate comprises at least one antagonist element, such as a compression spring, configured to move the at least one brush support back towards the second support position. According to an embodiment of the invention, the rocker comprises a cam surface configured to cooperate with the at least one brush support.

According to an embodiment of the invention, the vacuum cleaner nozzle comprises a yoke which is arranged between the soleplate and the connecting sleeve, and which is mounted on rotary connections with axes of rotation transverse to the soleplate and the connecting sleeve.

According to one embodiment of the invention, the brush drive mechanism is configured such that the fork can pivot relative to the sole when the joystick occupies the first and second joystick positions.

According to one embodiment of the invention, the joystick is configured to occupy a third joystick position, and the brush drive mechanism is configured to, when the joystick is moved to the third joystick position, control, block a rotation of the fork with respect to the sole. According to an embodiment of the invention, the brush drive mechanism comprises an upper stop element, integral in movement with the control lever, and a lower stop element, provided on the sole, the upper stop element and the lower stop element being configured lower stop element to limit the rotation of the fork with respect to the sole.

According to an embodiment of the invention, the fork comprises an upper support surface, configured to bear against the upper stop element when the fork rotates backwards with respect to the sole, and a lower bearing surface, configured to bear against the element. bottom stop when the fork rotates forward relative to the sole.

According to an embodiment of the invention, the upper support member and the lower support member are configured to approach each other during a joystick movement from the first joystick position to the third joystick position. joystick, and vice versa, to move away from each other during joystick movement from the third joystick position to the first joystick position.

According to an embodiment of the invention, the upper stop member and the lower stop member are configured to prevent the fork from rotating with respect to the sole when the joystick is moved to the third joystick position.

According to an embodiment of the invention, the locking device comprises a lock that is movable between a first locking position, in which the lock blocks the rotation of the fork with respect to the sole, and a second locking position, in which the lockout allows the fork to rotate with respect to the sole.

According to an embodiment of the invention, the lock is mounted to be movable in rotation between the first lock position and the second lock position. Advantageously, the lock is mounted so as to be movable in rotation on the sole.

According to one embodiment of the invention, the axis of rotation of the lock is substantially parallel to the axis of rotation of the rocker.

According to an embodiment of the invention, the axis of rotation of the lock extends transversely to the axis of rotation of the joystick.

According to an embodiment of the invention, the locking device comprises antagonist means, configured to return the lock to the first locking position.

According to one embodiment of the invention, the slider is configured to occupy a third slider position, and is configured to move the lock from the first lock position to the second lock position when the slider is moved from the third slider position. slider to the second slider position. According to one embodiment of the invention, the slider is configured to hold the lock in the second lock position when the slider is moved between the first slider position and the second slider position.

According to one embodiment of the invention, the brush drive mechanism is configured such that movement of the joystick from the second joystick position to the third joystick position results in movement of the slider from the second slider position to the third slider position, and such that movement of the joystick from the third joystick position to the second joystick position causes a displacement slider from the third slider position to the second slider position.

According to an embodiment of the invention, the brush drive mechanism is configured such that the at least one brush is in the raised position when the slider occupies the third position of the slider. According to an embodiment of the invention, the first slider position and the third slider position are two extreme slider positions, and the second slider position is an intermediate slider position. According to an embodiment of the invention, the nozzle of the vacuum cleaner comprises two brushes which are located, respectively, on the front side and on the rear side of the sole, and which are located on both sides of the suction cavity.

According to an embodiment of the invention, the brush drive mechanism comprises two sliders, which are arranged in the vicinity, respectively, of the two lateral sides of the sole.

According to one embodiment of the invention, the brush actuation mechanism comprises two grooved parts integral with movement with the control lever, each grooved part being configured to collaborate with the rack of a respective slider.

According to one embodiment of the invention, the brush actuating mechanism comprises an actuating part that is integral in movement with the control lever, and that comprises one of the slotted parts.

According to an embodiment of the invention, the brush drive mechanism comprises a transmission element, which connects the drive part with the control lever.

According to an embodiment of the invention, the brush drive mechanism comprises a pair of upper stop elements that are integral in movement with the control lever, and that are arranged, respectively, in the vicinity of the two lateral sides of the sole, and a pair of lower stop members, which are provided on the sole and are disposed in the vicinity, respectively, of the two lateral sides of the sole.

According to an embodiment of the invention, the fork comprises a first arm, comprising a first support finger, and a second arm, comprising a second support finger, each of the first and second support fingers comprising a support surface upper surface, configured to bear against a respective upper stop element when the fork is rotated rearwardly with respect to the sole, and a lower bearing surface, configured to bear against a respective lower stop element when the fork is rotated forward with respect to the sole. relative to the sole.

According to an embodiment of the invention, the blocking device comprises a plurality of blocking elements that are each arranged vertically to the at least one brush, and that are configured to prevent the displacement of the at least one brush from the position lowered to the raised position.

According to an embodiment of the invention, the blocking device comprises one or several blocking elements arranged vertically to a respective brush, and one or several blocking elements arranged vertically to another respective brush.

According to one embodiment of the invention, the control lever orientation system comprises an orientation element that is elastically deformable, and that is integral in movement with the control lever, the orientation element comprising a lug configured to collaborate with a series of accommodations orientation provided in the sole.

The present invention further relates to a vacuum cleaner, comprising a vacuum cleaner nozzle according to any of the preceding claims.

Brief description of the figures

The invention will be better understood with the help of the following description, with reference to the attached schematic drawings which show, by way of non-limiting example, an embodiment of this vacuum cleaner nozzle.

Figure 1 is a top perspective view of a vacuum cleaner nozzle according to the present invention.

Figure 2 is a bottom perspective view of the vacuum cleaner nozzle of Figure 1.

Figure 3 is a partial perspective view of the vacuum cleaner nozzle of Figure 1.

Figure 4 is a partially disassembled perspective view of the vacuum cleaner nozzle of Figure 1.

Figure 5 is a partial view of the vacuum cleaner nozzle of Figure 1.

Figure 6 is a partial perspective view of the vacuum cleaner nozzle of Figure 1, showing a control lever of the vacuum cleaner nozzle in a first control lever position.

Figure 7 is a front view of the vacuum cleaner nozzle of Figure 1, showing the vacuum cleaner nozzle control lever in the first control lever position.

Figure 8 is a side view of the vacuum cleaner nozzle of Figure 1, showing the vacuum cleaner nozzle control lever in the first control lever position.

Figure 9 is a partial perspective view of the vacuum cleaner nozzle of Figure 1, showing the control lever of the vacuum cleaner nozzle in a second control lever position.

Figure 10 is a front view of the vacuum cleaner nozzle of Figure 1, showing the vacuum cleaner nozzle control lever in the second control lever position.

Figure 11 is a side view of the vacuum cleaner nozzle of Figure 1, showing the vacuum cleaner nozzle control lever in the second control lever position.

Figure 12 is a partial perspective view of the vacuum cleaner nozzle of Figure 1, showing the control lever of the vacuum cleaner nozzle in a third control lever position.

Figure 13 is a front view of the vacuum cleaner nozzle of Figure 1, showing the vacuum cleaner nozzle control lever in the third control lever position.

Figure 14 is a side view of the vacuum cleaner nozzle of Figure 1 showing the vacuum cleaner nozzle control lever in the third control lever position.

Detailed description

Figures 1 to 14 show a vacuum cleaner nozzle 2 comprising a connection sleeve 3 at the end of which is connected to a tip of a rigid or flexible tube, connected in turn to the suction system of the vacuum cleaner (not shown). Various variants of vacuum cleaners already exist on the market, and can be used with the vacuum cleaner nozzle 2 according to the invention; these variants being known to those skilled in the art, they are not detailed in this patent application.

The vacuum cleaner nozzle 2 further comprises a fork 4 and two wheels 5 which are arranged on each side of the fork 4 and the connecting sleeve 3. The connecting sleeve 3 is mounted in rotational connection with respect to the fork 4. along a transverse axis of rotation X1 which is advantageously coaxial with the axis of rotation of the wheels 5. According to a variant embodiment of the invention, the axis of rotation of the wheels 5 could be offset with respect to the axis of rotation cross section X1 between yoke 4 and connecting sleeve 3.

The vacuum cleaner nozzle 2 also comprises a soleplate 6, for example made of plastic material. The sole 6 is provided, in particular, with a lower face 7 and with a suction cavity 8 opening into the lower face 7. The suction cavity 8 communicates with the connecting sleeve 3 by means of a connecting duct 9 , for example, flexible. The suction cavity 8 advantageously extends along a main direction that is transverse to a direction of displacement D of the suction nozzle 2.

The lower face 7 of the sole 6 comprises, in particular, a rear sliding surface 10 and an anterior sliding surface 11, which are located on both sides of the suction cavity 8, and which are substantially flat. According to the embodiment shown in the figures, the rear sliding surface 10 is inclined with respect to the front sliding surface 11, and the front sliding surface 11 is configured to extend substantially horizontally when the sole 6 rests flat on a surface. surface to be vacuumed.

The fork 4 is mounted in rotational connection with respect to the sole 6 along a transverse axis of rotation X2. In this way, the connecting sleeve 3 can be tilted backwards or forwards with respect to the fork 4, and the fork 4 can also be tilted backwards or forwards with respect to the sole 6.

The vacuum cleaner nozzle 2 further comprises brush holders 12.1, 12.2, 12.3, on which the brushes 13.1, 13.2, 13.3 are mounted. According to the embodiment shown in the figures, the brushes 13.1, 13.2 are located in the front part of the sole 6, and the brush 13.3 is located in the rear part of the sole 6.

Each brush support 12.1, 12.2, 12.3 is slidably mounted on the sole 6 in a sliding direction between a first support position (see figures 6 to 8) in which the respective brush is in a lowered position and is placed protruding from the lower part 7 of the sole 6, and a second support position (see figures 9 to 14) in which the respective brush is placed in a raised position and is placed set back with respect to the lower part 7 of the sole 6. Advantageously, the sole 6 comprises antagonist elements configured to move the brush supports 12.1, 12.2, 12.3 towards the second support position.

According to a variant embodiment of the invention, the vacuum cleaner nozzle 2 could comprise a one-piece support part, comprising the three brush supports 12.1, 12.2, 12.3. According to another variant embodiment of the invention, the vacuum cleaner nozzle 2 could comprise a front support part comprising the two brush supports 12.1, 12.2, and a rear support part comprising the brush support 12.3. According to yet another variant embodiment of the invention, the brushes 13.1, 13.2 could be joined together or be formed by the same brush.

The vacuum cleaner nozzle 2 further comprises a brush drive mechanism 14, comprising a control lever 15 which is arranged above the soleplate 6 and in the vicinity of a lateral edge of the soleplate 6. the control lever 15 is pivotally mounted with respect to the soleplate 6 about an axis of rotation which advantageously extends transversely with respect to the direction of displacement D of the vacuum cleaner nozzle 2. The control lever 15 is configured, more particularly, to occupy a first joystick position (see Figures 6 to 8), a second joystick position (see Figures 9 to 11), and a third joystick position (see Figures 9 to 11). figures 12 to 14).

Brush drive mechanism 14 is more particularly configured to:

• when the control lever 15 is moved to the first position of the control lever, allow the fork 4 to rotate with respect to the sole 6, lower the brushes 13.1, 13.2, 13.3 and place them in the lowered position in which the brushes 13.1, 13.2, 13.3 protrude from the lower part 7 of the sole 6,

• when the control lever 15 is moved to the second position of the control lever, allow the fork 4 to rotate with respect to the sole 6, raise the brushes 13.1, 13.2, 13.3 and place them in the raised position in which the brushes 13.1, 13.2, 13.3 are set back with respect to the lower part of the sole 6,

• when the control lever 15 is moved to the third position of the control lever, block the rotation of the fork 4 with respect to the sole 6 and keep the brushes 13.1, 13.2, 13.3 in the raised position.

The brush drive mechanism 14 also includes a joystick orientation system 16 configured to hold the joystick 15 in the first, second, and third joystick positions.

According to the embodiment shown in the figures, the control lever 16 orientation system comprises an orientation element 17, such as an index finger, which is elastically deformable and which is integral in movement with the control lever 15. Advantageously, the orientation element 17 extends from the joystick 15, and comprises a lug 18 provided at a free end of the orientation element 17.

The control lever 16 orientation system also comprises a series of orientation seats 19 that are provided in the sole 6 and each of which is configured to receive the lug 18 provided in the orientation element 17 according to the angular position of the joystick 15.

The brush actuation mechanism 14 further comprises an actuation part 21 which is integral in movement with the control lever 15. Advantageously, the actuation part 21 is arranged in the vicinity of a lateral edge of the sole 6 and opposite to the control lever 15, and the brush drive mechanism 14 comprises a transmission element 22 connecting the drive part 21 to the control lever 15 in such a way that a rotation of the control lever 15 between the first and the third position of the control lever causes a corresponding rotation of the drive part 21.

The brush drive mechanism 14 comprises two sliders 23, which are arranged, respectively, in the vicinity of the two lateral sides of the sole 6. Each slider 23 is slidingly mounted with respect to the sole 6 in a direction of displacement, and is configured to occupy a first position of the slider (see figures 6 to 8) in which the brushes 13.1, 13.2, 13.3 are in the lowered position, and a second position of the slide (see figures 9 to 11) in which the brushes 13.1, 13.2, 13.3 are in the raised position.

The brush drive mechanism 14 is more particularly configured such that a movement of the joystick 15 from the first joystick position to the second joystick position causes a movement of each of the sliders 23 from the first slider position to the second slider position, and in such a way that a displacement of the control lever 15 from the second control lever position to the first control lever position causes a displacement of each of the sliders 23 from the second slider position to the first slider position. For this, the brush drive mechanism 14 comprises two slotted parts 24 that are arranged respectively in the vicinity of the two lateral sides of the sole 6, and that are integral in movement with the control lever 15, and each of the sliders 23 comprises a rack 25 configured to collaborate with a respective slotted part 24. Advantageously, one of the slotted portions 24 is provided on the control lever 15, and each slotted portion 24 comprises a slotted angular sector.

According to the embodiment shown in the figures, each slider 23 has the general shape of a stirrup, and comprises a front arm 23.1 and a rear arm 23.2.

The brush drive mechanism 14 also includes, in addition to the joystick orientation system 16, a locking device 26, configured to lock the brushes 13.1, 13.2, 13.3 in the lowered position.

The locking device 26 comprises a plurality of locking elements 27, each of which is disposed vertically to a respective brush, and each of which is configured to prevent movement of the respective brush from the lowered position towards the lower position. raised position. According to the embodiment shown in the figures, the blocking device 26 comprises a first pair of blocking elements 27 arranged vertically, respectively, of the brushes 13.1, 13.2, and a second pair of blocking elements 27 arranged vertically of the brushes. brush 13.3.

According to the embodiment shown in the figures, each blocking element 27 is formed by a rocker arm that is mobile in rotation on the sole 6 around an axis of rotation A and between a blocking position (see figures 5 to 7) in the that the rocker prevents the respective brush movement from the lowered position to the raised position, and a release position (see figures 9 to 14) in which the rocker allows the respective brush movement from the lowered position to the raised position . Advantageously, the axis of rotation A of each rocker arm extends substantially transversely to the axis of rotation of the control lever 15.

Advantageously, each rocker is oriented substantially vertically when the rocker simultaneously occupies the locking position and the sole 6 rests flat on a surface to be sucked, and it is oriented substantially horizontally when the rocker simultaneously occupies the release position and the sole position. sole 6 rests flat on a surface to be vacuumed.

The brush drive mechanism 14 is configured such that movement of each slider 23 from the first slider position to the second slider position results in the movement of each rocker arm from the lock position to the release position. release, and such that a displacement of each slider 23 from the second slider position to the first slider position causes a displacement of each rocker arm from the release position to the locking position. For this, each of the front and rear arms 23.1, 23.2 of each slider 23 comprises a roller 28, configured to collaborate with a rolling surface 29 provided on the respective rocker arm.

As shown more particularly in Figure 5, each rocker advantageously comprises a cam surface 31, configured to cooperate with the respective brush support.

The brush drive mechanism 14 furthermore comprises two upper stop elements 32 which are arranged respectively in the vicinity of the two lateral sides of the sole 6, and which are integral in movement with the control lever 15, and two elements lower stop elements (not visible in the figures) which are arranged respectively in the vicinity of the two lateral sides of the sole 6, and which are provided on the sole 6. Advantageously, one of the upper stop elements 32 is integral with the control lever 15, and the other of the upper stop elements 32 is integral with the drive part 21.

Each upper stop member 32 is configured to move closer to the respective lower stop member when the joystick 15 is moved from the first joystick position to the third joystick position, and conversely to move away. of the respective lower stop member during movement of the joystick 15 from the third joystick position to the first joystick position.

According to the embodiment shown in the figures, the fork 4 comprises a first arm 4.1, comprising a first support finger 34, and a second arm 4.2, comprising a second support finger 35. Each of the first and second support fingers 34, 35 comprises an upper bearing surface, configured to bear against a respective upper stop element 32 when the fork 4 is rotated backwards with respect to the sole 6, and a lower bearing surface, configured to bear against a respective lower stop member when fork 4 is rotated forward relative to sole 6.

Advantageously, the upper stop elements 32 and the lower stop elements are configured to allow a rotation of the fork 4 with respect to the sole 6 when the joystick 15 is in the first and second joystick positions, and to prevent rotation of the fork 4 with respect to the sole 6 when the joystick 15 is in the third joystick position.

According to the embodiment shown in the figures, the locking device 26 comprises two locks 36 which are arranged in proximity respectively to the two lateral sides of the sole 6. Each lock 36 is mounted movable in rotation on the sole 6 about an axis of rotation B, which can extend, for example, transversely with respect to the axis of rotation of the control lever 15, and between a first locking position, in which the lock 36 blocks the rotation of the fork 4 with respect to the sole 6, and a second locking position, in which the lock 36 allows the fork 4 to rotate with respect to the sole 6. According to the embodiment shown in the figures, one of the locks 36 is configured to lock the first arm 4.1 of the fork 4 when the joystick 15 is in the third joystick position, while the other of the locks 36 is configured to lock the second arm 4.2 of the fork 4 when the joystick joystick 15 is in the third position of the joystick.

Advantageously, the locking device 26 comprises antagonist means (not visible in the figures) configured to return each lock 36 to the first locking position.

As shown in figures 12 to 14, each slider 23 is configured to occupy a third slider position, in which the brushes 13.1, 13.2, 13.3 are in the raised position, and the brush drive mechanism 14 is closed. configured so that a displacement of the joystick 15 from the second joystick position to the third joystick position causes a displacement of each slider 23 from the second slider position to the third slider position , and such that a movement of the control lever 15 from the third control lever position to the second control lever position causes a displacement of each slider 23 from the third control lever position to the second position of the slider

Each slider 23 is more particularly configured to move a respective lock 36 from the first lock position to the second lock position when said slider 23 is moved from the third slide position to the second slide position, and to allowing displacement of the respective lock 36 from the second lock position to the first lock position when said slider 23 is moved from the second slider position to the third slider position. To this end, each slider 23 may advantageously comprise an inclined surface 37, also called a ramp, configured to collaborate with the respective lock 36 when said slider 23 is moved from the third position of the slider to the second position of the slider.

Advantageously, each slider 23 is also configured to hold the respective lock 36 in the second lock position when said slider 23 is moved between the first slider position and the second slider position.

Next, an operation of the vacuum cleaner nozzle 2 according to the present invention will be described with reference, more particularly, to Figs. 6 to 14.

When the control lever 15 is moved to the third control lever position, the upper stop elements 32 bear, respectively, against the first and second support fingers 34, 35 of the fork 4, and move the first and second support fingers 34, 35 until the last is in contact with the lower support elements provided in the sole 6.

Said displacement of the control lever 15 in the third position of the control lever also induces a displacement of the sliders 23 to the third position of the slider, due to the collaboration of the toothed parts 24 with the racks 25, and, therefore, consequently, a displacement of the locks 36, under the action of the respective antagonist means, to the first locking position, in which the locks 36 lock the first and second arms 4.1, 4.2 of the fork 4 and, consequently, prevent any rotation of the fork 4 with respect to the sole 6. It should be remembered that the brushes 13.1, 13.2, 13.3 are kept in the raised position when the control lever 15 is in the third position of the control lever.

When the joystick 15 is moved to the second joystick position, the upper stop members 32 move away from the lower stop members and thus release the first and second support fingers 34, 35 from each other. fork 4.

Said displacement of the control lever 15 to the second position of the control lever also induces a displacement of the sliders 23 to the second position of the slider, due to the collaboration of the toothed parts 24 with the racks 25, and therefore Therefore, a displacement of the locks 36, under the action of the inclined surfaces 37 provided on the sliders 23, up to the second locking position, to allow a rotation of the fork 4 with respect to the sole 6. When the sliders 23 are in the second position of the slider, locks 36 are held in the second locking position by sliders 23.

When the joystick 15 is moved to the first joystick position, the upper stop elements 32 move further away from the lower stop elements, to further increase the rotational travel of the fork 4 relative to the ground. sole 6.

Said displacement of the control lever 15 to the first position of the control lever also induces a displacement of the sliders 23 to the first position of the slider, and therefore a collaboration of the rollers 28 provided on the sliders 23 with the rolling surfaces 29 provided on the respective rocker arms, so as to move each rocker arm from its release position to its locking position. Said movement of each rocker arm therefore induces a sliding of the brush supports 12.1, 12.2, 12.3 to their first support position and, therefore, a movement of the brushes 13.1, 13.2, 13.3 to their lowered position in the that the brushes 13.1, 13.2, 13.3 protrude from the bottom of the sole 6.

In this way, the brush drive mechanism 14 allows the control lever 15 to be oriented to a first control lever position, a second control lever position and a third control lever position corresponding, respectively, to a first mode of operation, called "maximum performance mode", in which the brushes 13.1, 13.2, 13.3 are in the raised position and the rotation of the fork 4 with respect to the sole 6 is blocked, to a second mode of operation, called "comfort mode", in which the brushes 13.1, 13.2, 13.3 are in the raised position and the rotation of the fork 4 with respect to the sole 6 is allowed, and a third mode of operation, called "mode hard floor”, in which the brushes 13.1, 13.2, 13.3 are in the lowered position, and the rotation of the fork 4 with respect to the sole 6 is allowed.

Of course, the present invention is in no way limited to the described and illustrated embodiment, which has been provided by way of example only. Certain 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 (17)

1. Vacuum cleaner nozzle (2), comprising a soleplate (6), provided with a lower face (7) and a suction cavity (8) that leads to the lower face (7), at least one brush (13.1, 13.2, 13.3) and a coupling sleeve (3), configured for fluid communication with the suction cavity (8), said vacuum cleaner nozzle (2) comprising a brush drive mechanism (14), comprising a lever for knob (15) configured to occupy at least a first joystick position and a second joystick position, the brush drive mechanism (14) being configured to, when the joystick (15) is moved in the first position of the control lever, lower the at least one brush (13.1, 13.2, 13.3) and place it in a lowered position, in which the at least one brush protrudes from the lower face (7), and being configured stops, when the control lever (15) is moved to the second position of the control lever control, raise the at least one brush (13.1, 13.2, 13.3) and place it in a raised position, in which the at least one brush is recessed with respect to the lower face (7), comprising said brush drive mechanism ( 14), likewise, a control lever orientation system (16), configured to maintain the control lever (15) in at least the first and the second position of the control lever, characterized in that the actuation mechanism The brush (14) also comprises, in addition to the control lever (16) orientation system, a locking device (26), configured to lock the at least one brush (13.1, 13.2, 13.3) in the lowered position. 2. Vacuum cleaner nozzle (2), according to claim 1, in which the blocking device (26) comprises a blocking element (27) arranged vertically to the at least one brush (13.1, 13.2, 13.3), and configured to prevent displacement of the at least one brush (13.1, 13.2, 13.3) from the lowered position to the raised position. 3. Vacuum cleaner nozzle (2), according to claim 2, in which the locking element (27) is a control lever that is movable in rotation about a rotation axis (A) between a locked position, in the that the control lever prevents a displacement of the at least one brush (13.1, 13.2, 13.3) from the lowered position to the raised position, and a released position in which the control lever allows a displacement of the at least one brush (13.1 , 13.2, 13.3) from the lowered position to the raised position. 4. Vacuum cleaner nozzle (2) according to any of claims 1 to 3, in which the brush drive mechanism (14) comprises a slider (23), which is slidably mounted with respect to the soleplate (6 ), according to a direction of displacement, and which is configured to occupy at least a first position of the slider, in which the at least one brush (13.1, 13.2, 13.3) is in the lowered position, and a second position of the slide, in which the at least one brush (13.1, 13.2, 13.3) is raised, the brush drive mechanism (14) being configured in such a way that a displacement of the control lever (15) from the first position of the joystick to the second joystick position causes a slider displacement (23) from the first slider position to the second slider position, and in such a way that a joystick displacement ( 15) from the second position of the joystick to the The first position of the joystick causes a displacement of the slider (23) from the second position of the slider to the first position of the slider. 5. Vacuum cleaner nozzle (2), according to claim 4, in which the slider (23) comprises a rack (25), configured to collaborate with a grooved part (24) integral in movement with the control lever (15) . Vacuum cleaner nozzle (2), according to claim 5, in which the slotted part (24) comprises a slotted angular sector. Vacuum cleaner nozzle (2) according to any one of claims 4 to 6 in combination with claim 3, in which the brush drive mechanism (14) is configured in such a way that a displacement of the slider (23) from the first slider position to the second slider position causes a displacement of the control lever from the locked position to the released position, and in such a way that a displacement of the slider (23) from the second position of the slider to the first slider position causes a movement of the joystick from the released position to the locked position. Vacuum cleaner nozzle (2) according to any one of claims 4 to 7 in combination with claim 3, in which the slider (23) comprises a rolling roller (28) configured to cooperate with a rolling surface (29). ) provided on the rocker arm. 9. Vacuum cleaner nozzle (2), according to any of claims 1 to 8, in which the soleplate (6) comprises at least one brush support (12.1, 12.2, 12.3) on which the at least one brush is mounted (13.1, 13.2, 13.3), the at least one brush support (12.1, 12.2, 12.3) being mounted movable with respect to the sole (6) between a first support position, in which the at least one brush (13.1 , 13.2, 13.3) is in the lowered position, and a second support position, in which the at least one brush (13.1, 13.2, 13.3) is in the raised position. 10. Vacuum cleaner nozzle (2), according to claims 3 and 9, in which the control lever comprises a cam surface (31), configured to collaborate with the at least one brush support (12.1, 12.2, 12.3) . 11. Vacuum cleaner nozzle (2), according to any of claims 1 to 10, comprising a fork (4) that is arranged between the sole (6) and the coupling sleeve (3), and that is mounted as connections of turn of transverse axes of rotation with respect to the sole (6) and the coupling sleeve (3). 12. Vacuum cleaner nozzle (2) according to claim 11, in which the joystick (15) is configured to occupy a third joystick position, and the brush drive mechanism (14) is configured to , when the control lever (15) is moved to the third position of the control lever, lock a rotation of the fork (4) with respect to the sole (6). 13. Vacuum cleaner nozzle (2), according to claim 11 or 12, in which the brush drive mechanism (14) comprises an upper stop element (32) integral in movement with the control lever (15), and a lower stop member provided on the sole (6), the upper stop member (32) and the lower stop member being configured to limit the rotation of the fork (4) with respect to the sole (6). Vacuum cleaner nozzle (2) according to any of claims 11 to 13, in which the locking device (26) comprises a lock (36) movable between a first locking position, in which the lock (36) locks the rotation of the fork (4) with respect to the sole (6), and a second locking position, in which the lock (36) allows the rotation of the fork (4) with respect to the sole (6) . A vacuum cleaner nozzle (2) according to claim 14, in which the locking device (26) comprises antagonist means configured to return the lock (36) to the first locking position. 16. Vacuum cleaner nozzle (2), according to claim 14 or 15 in combination with claim 4, in which the slider (23) is configured to occupy a third position of the slider, and is configured to displace the lock (36 ) from the first locking position to the second locking position when the slider (23) is moved from the third slider position to the second slider position. 17. Vacuum cleaner, comprising a vacuum cleaner nozzle (2), according to any of the preceding claims.