EP2855797A1

EP2855797A1 - Device for cleaning a submerged surface with a propelled water jet

Info

Publication number: EP2855797A1
Application number: EP13731370.6A
Authority: EP
Inventors: Vincent Lavabre
Original assignee: Cavagnol Michel; Puech Maxime
Current assignee: CHEN, LIANG; L'atelier Du 26; LAVABRE, VINCENT; MARIE, PATRICK; PUECH, MAXIME
Priority date: 2012-05-28
Filing date: 2013-05-28
Publication date: 2015-04-08
Anticipated expiration: 2033-05-28
Also published as: EP2855797B1; US20150143643A1; FR2990975A1; FR2990975B1; WO2013178935A1; US10494829B2

Abstract

The invention concerns a device for cleaning a submerged surface comprising water jet propulsion means (19) that generate a propelling water jet, and means (19-23) for orienting the propelling water jet that allow orienting said water jet in two opposing so-called longitudinal propulsion directions, capable of imparting to the cleaning device two opposing directions of movement along an axis of movement (y). According to the invention, the means (19-23) for orienting the propelling water jets are suitable for orienting the water jet in at least one third, so-called lateral propulsion direction, in which the water jet is oriented in a bisecting direction relative to the axis of movement (y) suitable for exerting a force capable of causing the cleaning device to pivot by oversteering.

Description

Submerged surface cleaner with propellant water jet

The invention relates to a submerged surface cleaner with a propellant jet of water.

The propellant submerged surface submerged surface cleaning apparatuses usually comprise water jet propulsion means generating a propellant jet of water, and means for orienting the propellant jet of water adapted to allow orienting said water jet in two opposite, so-called longitudinal, directions of propulsion capable of conferring on the cleaning apparatus two opposite directions of movement along an axis of displacement.

Such cleaning devices, in particular described in patents FR 2896005 or FR 2586054, simply comprise a turbine or a nozzle supplied either by onboard motor means or by the discharge circuit of the filtration system of the basin, and constitute a range of apparatus. designed to move on the bottom wall of basins, the cost of which is significantly lower than the cost of sophisticated equipment designed to move on the bottom wall and the side walls of basins.

However, by design, these cleaning devices prove to be incapable of systematically guaranteeing a complete sweeping of the entire surface of the basins without requiring human intervention. Indeed, particularly in certain situations such as the end of a surface to be cleaned, positioning in the lower zone of a slope line ..., such cleaning devices can be immobilized without the possibility of unlocking other than human intervention.

The present invention aims to overcome this drawback and its main purpose is to provide a cleaning device combining the advantages of current propellant water jet devices (simplicity, low cost ...) and an effective cleaning capacity of the the entire surface of the bottom walls of the basins without requiring human intervention.

Another object of the invention is to provide a cleaning apparatus of optimized use optimally.

For this purpose, the invention aims, in the first place, a cleaning device whose means of orientation of the jet of propellant water are adapted to to orient the jet of propellant water, not only in two opposite longitudinal propulsion directions, but, in addition, in at least one third, so-called lateral, propulsion direction, in which the said jet of water is oriented in a direction secant direction relative to the longitudinal axis of movement adapted to exert a force capable of causing a pivoting by oversteering of the cleaning apparatus.

For the sake of simplicity of description, the cleaning apparatus according to the invention is described, in the present application, positioned on a bottom wall of a pool such as a swimming pool, and the terms such as above, below, superior, inferior .... must be interpreted taking into consideration such positioning.

Such a propellant jet cleaner apparatus is therefore designed to perform:

longitudinal displacements along the axis of displacement, according to the two directions of movement,

and pivoting predetermined angles functions of the period of time during which the jet of water is oriented in a direction of lateral propulsion.

This cleaning apparatus can therefore carry out movement sequences incorporating longitudinal displacements and "turns" which, by means of an adequate programming of the said sequences of movements, in particular determined according to the shape and dimensions of the basins, make it possible to obtain efficient cleaning. the entire surface of the bottom wall of the basins without requiring human intervention.

According to an advantageous embodiment of the invention, the means for orienting the propulsive water jet are adapted to allow said water jet to be oriented in two opposite lateral propulsion directions that are symmetrical with respect to the axis of the jet of water. displacement.

For this purpose, the cleaning apparatus according to the invention advantageously comprises means for controlling the means for orienting the propulsive water jet capable of generating sequences of movements comprising longitudinal displacements along the axis of displacement, alternatively in both directions of travel, and turns in at least one direction of rotation. The cleaning apparatus can thus pivot in both directions and thus has an increased movement capacity.

In addition, the orientation means of the propellant water jet are advantageously adapted, according to the invention, so that, in each direction of lateral propulsion, the jet of propellant water is propelled in the vicinity of one of the longitudinal ends of the cleaning apparatus, with an orientation at least substantially orthogonal to the axis of displacement.

Thus, in particular, when the cleaning apparatus comprises a frame carried by two sets of rotating rolling members about axes of rotation, the jet of propellant water is preferably oriented, in each direction of lateral propulsion, relative to the axis of rotation of one of the sets of rolling members.

This arrangement makes it possible to obtain maximum pivoting torque in each direction of lateral propulsion of the propellant jet of water, thus ensuring effective and rapid pivoting of the cleaning apparatus.

Furthermore, according to another advantageous embodiment of the invention, the means for orienting the propellant water jet comprise:

a distributor rotating around another axis of rotation comprising a propulsion duct extending radially with respect to said axis of rotation,

means for rotating the rotary distributor,

and means for indexing the angular position of the propulsion duct around the axis of rotation.

In addition, the means for orienting the propellant water jet advantageously comprise, according to the invention, fixed propulsion vents:

- arranged to extend in the extension of the propulsion conduit of the rotary distributor, each in one of the indexed angular positions of said propulsion conduit,

- having longitudinal profiles adapted to define the orientation of the jet of propellant water. According to another advantageous embodiment of the invention, the water jet propulsion means comprise a radial turbine driven in rotation about the other axis of rotation by motor means, and:

the rotary distributor comprises a suction chamber arranged to house the radial turbine, provided with a communication passage with the propulsion pipe,

the rotating drive means of the rotary distributor comprise deflector members of the water jet generated by the rotation of the turbine.

According to this embodiment, the suction of the water for its filtration and the creation of the propellant water jet are achieved by means of a single turbine which thus provides the two functions of filtration and propulsion.

According to this embodiment, in addition, and advantageously according to the invention:

the suction chamber of the rotary distributor comprises a feed opening opening into the upper part of said suction chamber,

- Piping means incorporating filtration means are adapted to channel the water between at least one suction opening in the lower portion of the cleaning apparatus and the supply opening of the suction chamber.

In addition, the rotary distributor then advantageously comprises, according to the invention, water passage openings arranged opposite the feed opening of the suction chamber and adapted, on the one hand, to be disengaged in each of the lateral propulsion positions, and secondly, to be obstructed in the two longitudinal propulsion positions.

According to this arrangement, in the lateral propulsion positions, the suction chamber is fed directly by means of the water penetrating through the upper openings of the water passage. Therefore, during pivoting, the cleaning device is not subject to the adhesion force generated by the vacuum resulting from the suction of water through the suction openings (Bernoulli effect). In addition, during these pivoting, the feed rate of the suction chamber is independent of the filling rate and / or clogging of the filtration means. As a result, the amplitude of the pivoting remains constant regardless of this degree of filling and / or clogging, and can be determined precisely.

For the sake of simplicity of manufacture, and in particular with a view to producing these water passage openings, the cleaning apparatus advantageously comprises a cowling adapted to house the rotary distributor, in which are formed, on the one hand, the fixed propulsion vents, and secondly, lights adapted to be in correspondence with said water passage openings in each of the two lateral propulsion positions.

According to another advantageous embodiment of the invention, the cleaning apparatus comprises a frame having the form of a frame defining a volume adapted to house a removable filtration tank enclosing the filtering means and having a lower wall in which is provided each suction opening.

In addition, the shape of the frame is advantageously adapted so that the cleaning device can be placed edge in a position allowing the removal of the filter tank. Thus, access to the filter tank and the removal and then the replacement of the latter are extremely easy.

In addition, the cleaning apparatus also advantageously comprises, according to the invention, on each side of each suction opening along the axis of longitudinal displacement, a lip extending on the edge of said suction opening. , of suitable height to delimit, above the immersed surface, a suction passage of reduced section.

This arrangement leads to accelerate the flow through the suction passages and generates, in contact with the wall of the basin, the creation of "jets of water" that effectively clean the said wall.

According to another advantageous embodiment of the invention, the indexing means comprise radial stop members protruding on the circumference of the rotary distributor, and an abutment member associated with actuating means able to move the said stop member between interception positions of the stop members and retracted positions relative to said stop members.

In addition, according to this embodiment and advantageously according to the invention:

the radial stop members and the stop member are arranged so that said stop member has a first interception position of the stop members defining the lateral propulsion positions of the rotary distributor, and a second position of interception of the stop members defining the longitudinal propulsion positions of the rotary distributor,

the actuating means comprise an active state for holding the stop member in one of its two interception positions and a passive state for holding said stop member in its second interception position.

These actuating means are, moreover, advantageously according to the invention, of the electric power supply type and have an active state, obtained during their electrical supply, for holding the stop member in its interception position of the organs stopper defining the lateral propulsion positions of the rotary distributor, and a passive state, obtained in the absence of an electrical supply, for holding the stopper member in its intercepting position of the stop members defining the positions longitudinal propulsion of the rotary distributor.

Thus, in particular, the actuating means are electrically powered only during the pivoting phases of the cleaning apparatus, that is to say the phases of lesser duration.

As an advantageous embodiment of such indexing means:

the stop members defining the lateral propulsion positions of the rotary distributor are offset, along an axis parallel to the other axis of rotation, relative to the stop members defining the longitudinal propulsion positions of said rotary distributor,

the stop member consists of a lever articulated about a pivot axis orthogonal to a radial axis with respect to the other axis of rotation, - The actuating means comprise an electromagnet adapted to rotate the abutment member about its pivot axis.

Other features and advantages of the invention will emerge from the detailed description which follows with reference to the accompanying drawings which show, by way of non-limiting example, a preferred embodiment. On these drawings:

FIG. 1 is a perspective view from above of a cleaning apparatus according to the invention,

FIG. 2 is a perspective view from below showing the cleaning apparatus arranged in a position allowing access to the filtration tank,

FIG. 2a is a detailed view of the bottom wall of the filtration tank,

FIG. 3 is a perspective view from above of this cleaning apparatus shown without a cover cap,

- Figure 4 is a top view on which the upper element of the cowling is shown dissociated from the cleaner;

FIGS. 5 and 6 are partial perspective views of the cleaning apparatus according to the invention,

FIGS. 7a to 7e are perspective views of the means for orienting the jet of propellant water representing various positions of said orientation means,

FIGS. 8a and 8b are views from above of the cleaning apparatus according to the invention shown in one of the longitudinal propulsion positions of the propellant jet of water, respectively without an upper cowling element (FIG. 8a) and with the element upper cowling (Figure 8b),

and FIGS. 9a and 9b are views from above of the cleaning apparatus according to the invention shown in one of the lateral propulsion positions of the propellant jet of water, respectively without a top cowling element (FIG. 9a) and with the upper cowling element (Figure 9b).

The cleaning apparatus according to the invention represented in particular in FIGS. 1 to 4 consists of a water jet cleaner apparatus propellant adapted to move on the bottom wall (P) of pools such as swimming pools.

This cleaning apparatus comprises, in the first place, a frame 1 having the general shape of a frame delimiting a substantially parallelepipedal internal volume rectangle. This chassis 1 is carried by two axles, said front axle 3 and rear axle 4, positioned at each of the longitudinal ends of said chassis, on the ends of each of which are mounted two wheels: two front wheels 5, 6 and two wheels rear 7, 8.

Conventionally, the two axles 3, 4 are rotatably mounted about parallel axes of rotation (x), and thus determine a longitudinal axis of displacement (y) of the cleaning apparatus orthogonal to said axes of rotation (x).

As shown in particular in FIG. 5, inside the internal volume 2 delimited by the frame 1, the cleaning apparatus comprises a cradle 9 secured to said frame, supporting a centrifugal pump 10 driving a turbine radial 1 1, in a position where said turbine is rotatable about an axis (z) perpendicular to the plane defined by the axes (x, y).

In addition, this cradle 9 is housed inside a removable filtering tank 13, and delimits a support surface of a filtration bag 12 adapted so that the filtered materials, such as suspended solids, are deposited at the same time. interior of said filter tank.

This filtration tank 13 has a generally rectangular parallelepipedal shape conjugate with that of the internal volume 2 delimited by the frame 1, and comprises, as shown in particular in FIGS. 2 and 4, two manually operated pivoting lateral handles, such as 60, provided with , in the upper part, detent lugs such as 60a, designed to cooperate with a bar 59 for locking said lugs integral with the frame 1.

As shown in Figure 2, such a filter tank 13 is accessible, and can be removed and replaced, in a position of the cleaner in which the latter is positioned edging.

The filtration tank 13 further comprises a bottom wall 13a in which are provided two suction openings 14, 15 in the example of rectangular shape, arranged so that the axes of longitudinal symmetry of said suction openings are aligned along the same axis parallel to the axis (x) of rotation of the wheels 5-8.

In addition, as shown in FIG. 2a, this filtering pan 13 comprises, on either side of each suction opening 14, 15, along the longitudinal displacement axis (y), a lip 56, 57 extending at the edge of said suction opening, of height adapted to delimit, above the bottom wall (P), a suction slit of reduced height (e) designed to accelerate the flow of water and create, in contact with said bottom wall, jets able to effectively clean the latter.

As shown in FIG. 5, the filtration tank 13 comprises, finally, two suction ducts 16 each opening at one of the suction ports 14 and 15 and extending through the cradle 9 so as to to emerge in the upper zone of the latter.

The cleaning apparatus according to the invention comprises, moreover, two cowling plates 17, 18 adapted to be superimposed and positioned on the frame 1, said plates being shaped so as to delimit:

- On the one hand, a housing for a rotary distributor 19 adapted to be fed by means of the jet of water produced by the radial turbine 1 1,

- On the other hand, four conduits 20-23 for propelling the water jet delivered by the rotary distributor 19.

For this purpose, the lower plate 17, adapted to be secured to the frame 1, comprises, in the first place, a central orifice 24 arranged to be oriented on the axis of rotation (z) of the radial turbine 1 1, on the periphery of which is formed an annular track 25 for supporting and guiding the rotary distributor 19.

This bottom wall 17 also comprises four channels 20a-23a formed from the annular track 25 and consisting of:

two axial channels, said channel before 20a and rear channel 21a, extending longitudinally along the axis (y), on either side of the annular track 25,

two lateral channels 22a, 23a extending symmetrically on either side of the rear channel 21a, and having longitudinal profiles bent so as to have, each, a branch 26 radial to the annular track 25, and a transverse branch 27 parallel to the axis (x) and adapted to open above one of the rear wheels 7, 8.

The second upper plate 18 has a shape complementary to that of the bottom wall 17 and:

- comprises four channels 20b-23b adapted to form four fixed propulsion vents with the corresponding channels 20a-23a of the lower plate: two longitudinal propulsion ports 20, 21 and two lateral propulsion ports 22, 23,

- Forms a dome 28 whose base has a diameter substantially equal to the diameter of the central orifice 24 of the lower plate 17, disposed vertically above said central orifice.

In addition, the dome 28 is pierced with four orifices 29-32 distributed radially around the axis of rotation (z) and aligned in pairs along two axes y1 and y2 substantially angularly offset with respect to the longitudinal axes of the radial branches. 26 lateral propulsion vents 22, 23.

The rotary distributor 19 comprises, for its part, a cylindrical suction chamber 33 arranged to house the radial turbine 1 1, and provided with an upper feed opening 34.

This suction chamber 33 also communicates with a radial propulsion duct 35 arranged so as to position itself in the continuity of the fixed propulsion vents 20-23 during the rotation of the rotary distributor 19.

In addition, as shown in particular in FIGS. 7a to

7th, this propulsion duct 35 incorporates deflector members of the jet of water propelled by the rotation of the turbine 1 1, arranged at its mouth and adapted to generate a rotation of the rotary distributor 19. In the example shown, these deflector members consist of a convex boss 37 attached to one of the side walls of the propulsion conduit 35 and a concave wall 36 extending the other side wall of said propulsion conduit.

The rotary distributor 19 further comprises, around the periphery of the suction chamber 33, a perforated annular radial wall 38, interrupted on the angular sector corresponding to the implantation of the duct. propulsion 35, said radial wall forming, in addition, with said suction chamber, the base of a dome 39 defining a feed chamber of the upper feed opening 34 of the suction chamber 33.

This dome 39 further includes, externally, a conical central recess 40 for locking in translation the rotary distributor 19 by means of a pin 41 secured to the dome 28 so as to extend in said recess.

This dome 39 also has two orifices 42,

43 arranged to coincide with the orifices 30, 32 of the dome 28 aligned on the axis y1 in one of the lateral propulsion positions (FIGS.

9a and 9b), and with the orifices 29, 31 of the dome 28 aligned on the axis y2 in the other lateral propulsion position.

The rotary distributor comprises, finally, a radial annular belt 44 extending around the periphery of the base of the dome 39, adapted to be positioned on the annular track 25 of the lower plate 17.

The cleaning apparatus also comprises means for indexing the angular position of the rotary distributor 19 adapted to allow the propulsion duct 35 to be positioned facing and in continuity with each of the fixed propulsion ports 20-23.

These indexing means comprise, in the first place, a lever 45 extending radially with respect to the axis of rotation (z), articulated about an axis 46 orthogonal to said axis of rotation (z), and provided with a latch-like end 45b adjacent to the peripheral zone of the annular belt

44 of the rotary distributor 19.

The indexing means also comprise means for actuating the lever 45 comprising an electromagnet 47 provided with a finger 48 arranged parallel to the axis of rotation (z), in line with the end 45a of the lever 45 opposite the latch 45b, so as to cause a tilting of said lever leading to lowering the latch 45b during the power supply of said electromagnet.

These actuating means comprise, in addition, a spring 49 positioned under the arm of the lever 45 comprising the latch 45b, in order to cause a tilting of said lever leading to raise said latch in the absence of power supply of the electromagnet 45. Finally, the indexing means comprise radial stop members 50-53 projecting from the periphery of the annular belt 44 of the rotary distributor 19, and positioned so as to define, each, one of the propulsion positions of said rotary distributor.

In addition, the two arresting members 52, 53 defining the lateral propulsion positions of the rotary distributor 19 are located at the same height, along the axis of rotation (z), and offset, along this axis (z), by relative to the two stop members 50, 51 defining the longitudinal propulsion positions of said rotary distributor, which themselves are located at the same height. More precisely :

the two arresting elements 52, 53 defining the lateral propulsion positions are adapted to intercept the latch 45b in the lowered position of the latter obtained during the power supply of the electromagnet 47,

- The two arresting members 50, 51 defining the longitudinal propulsion positions are adapted to intercept the latch 45b in the raised position of the latter obtained in the absence of power supply of the electromagnet 47.

It should also be noted that the stop member 50 defining one of the longitudinal propulsion positions consists of the concave wall 36 acting as a deflector.

Finally, the cleaning apparatus comprises a covering cover 54 of the cowling elements constituted by the lower plates 17 and upper 18.

In addition, this cover 54 is provided with a handle 55 for gripping the cleaning apparatus for transport. This handle 55 extends further parallel to the axis (x) of rotation of the wheels 5-8, and is located at the rear portion of the cover 54, so as to form an additional support base of the cleaning apparatus, in the position of the latter shown in Figure 2 where it is placed edge for access to the filter tank 13.

According to the cleaning apparatus of the invention, and firstly, the rotation of the radial turbine 1 1 generated by the power supply of the centrifugal pump 10 causes the suction of the water inside the chamber suction 33 through channeling means materialized in the figure 5, comprising the conduits 16, and adapted to channel the water between the suction openings 14, 15 and the upper feed opening 34 of said suction chamber.

The flow of water sucked into the suction chamber is propelled into the propulsion duct 35 in the form of a jet of propellant water causing, on the one hand, the rotation of the rotary distributor 19 due to the presence of the elements. deflectors 36, 37, and secondly the movements, longitudinal movements and pivoting, of the cleaning apparatus.

The selection of the displacement sequences is carried out by programming the power supply means of the electromagnet 47 based in particular on the following general principles:

a lack of power causes a longitudinal displacement in a direction of movement,

an electric pulse leads to a reversal of the direction of longitudinal displacement: the latch 45b disengages from the stop member

50, 51 against which it is initially in abutment and immediately returns to its raised position in which it is then intercepted by the stop member 51, 50 defining the other longitudinal propulsion position (sequence of FIGS. 7a-7b-7d -7E)

- A power supply during a time t leads to the pivoting of the cleaning device of an angle function of t, in a direction of rotation function of the previous direction of longitudinal movement: the latch 45b is disengaged from the stop member 50 51 against which it is initially in abutment and remains in its lowered position in which it is then intercepted by one of the stop members 52, 53 defining one of the lateral propulsion positions (sequence of Figures 7a-7b-7c).

It is understood that other variations can also be envisaged and allow two successive pivoting ...

However, the most common motion sequences include:

a first longitudinal displacement over a predetermined length along the axis (y), in a first direction of movement,

a second longitudinal displacement over a predetermined length, in a direction of reverse movement, and pivoting for a period of time adapted to rotate the cleaning apparatus by a predetermined angle.

By way of example, in the case of a rectangular basin, these sequences are combined so as to produce cycles comprising:

a first sequence adapted for the cleaning apparatus to move in both directions over a length corresponding to one of the dimensions of the immersed surface, and at the end of which it pivots by an angle of 90 °,

and a second sequence adapted for the cleaning apparatus to move in both directions over a length corresponding to the second dimension of the immersed surface, and at the end of which it pivots by an angle of 90 °.

It should also be noted that, as shown in FIGS. 9a and 9bls of each pivoting of the cleaning apparatus, the two orifices 42, 43 come into coincidence with two of the orifices, in example 30, 32, of the dome 28 of FIG. so that the suction chamber 33 is fed directly by means of the water penetrating through said orifices. Therefore, during pivoting, the cleaning device is not subject to the adhesion force generated by the vacuum resulting from the suction of water through the suction openings (Bernoulli effect).

In addition, during these pivoting, the supply flow rate of the suction chamber is independent of the filling rate and / or clogging of the filter tank 13. As a result, the amplitude of the pivoting remains constant regardless of this rate of filling and / or clogging and can be determined accurately.

It is therefore possible to program the pivoting so as to avoid winding phenomena of the power supply cable.

It should also be noted that, on the basis of the principle of the invention, the cleaning apparatus may be provided with two lateral propulsion vents 22, 23 as described above, but also with a single lateral propulsion mouth. 22 or 23, two lateral propulsion vents 22 (or 23) each disposed at one end of the cleaner, on the same side of the latter, or even three or four lateral propulsion vents. Such a propellant water jet cleaning apparatus, equipped with a simple centrifugal pump 10 thus realizes:

longitudinal displacements along the axis (y), according to the two directions of movement,

Therefore, it combines the advantages of current propellant water jet devices (simplicity, low cost ...) and an efficient cleaning capacity of the entire surface of the bottom walls of the basins without the need for human intervention.

Claims

1 / submerged surface cleaning apparatus (P) comprising propellant jet water jet propulsion means (10, 1 1), and jet jet orientation means (19-23) propellant water adapted to allow said water jet to be oriented in two opposite, so-called longitudinal, propulsion directions able to give the cleaning apparatus two opposite directions of movement along an axis of displacement (y), said cleaning apparatus being characterized in that the means (19-23) for orienting the jet of propelling water are adapted to allow the said water jet to be oriented in at least a third, so-called lateral, direction of propulsion, wherein said water jet is oriented in a secant direction relative to the axis of displacement (y) adapted to exert a force capable of causing a pivoting by oversteering of the cleaning apparatus.

21 Apparatus cleaner according to claim 1 characterized in that the orientation means (19-23) of the jet of propellant water are adapted to allow to orient said water jet in two symmetrical opposite lateral propulsion directions relative to each other. to the axis of displacement (y).

3 / Apparatus cleaner according to claim 2 characterized in that it comprises means for controlling the orientation means (19-23) of the jet of propellant water capable of generating sequences of movements comprising longitudinal displacements along the l axis (y), alternately in the two directions of movement, and turns in at least one direction of rotation.

4 / Apparatus according to one of the preceding claims characterized in that the orientation means (19-23) of the jet of propellant water are adapted so that, in each direction of lateral propulsion, the jet of propellant water is propelled near one of the longitudinal ends of the cleaner, with an orientation (x) at least substantially orthogonal to the axis of displacement (y).

5 / Apparatus according to claim 4 comprising a frame (1) carried by two sets of rolling members (3-8) rotatable about axes of rotation (x), characterized in that, in each direction of lateral propulsion , the jet of propellant water is oriented relative to the axis of rotation (x) of one of the sets of rolling members. 6 / Apparatus cleaner according to one of the preceding claims characterized in that the means of orientation of the jet of propellant water comprise:

a distributor (19) rotatable about an axis of rotation (z) comprising a propulsion duct (35) extending radially with respect to said axis of rotation (z),

- Rotational drive means (36, 37) of the rotary distributor (19),

and indexing means (45-53) for the angular position of the propulsion duct around the axis of rotation (z).

71 Apparatus cleaner according to claim 6 characterized in that the means of orientation of the propellant water jet comprise fixed propulsion vents (20-23):

- arranged to extend in the extension of the propulsion duct (35) of the rotary distributor (19), each in one of the indexed angular positions of said propulsion duct,

- having longitudinal profiles adapted to define the orientation of the jet of propellant water.

8 / Apparatus according to one of claims 6 or 7 wherein the water jet propulsion means comprise a radial turbine (1 1) driven in rotation about the axis of rotation (z) by motor means ( 10), characterized in that:

the rotary distributor (19) comprises a suction chamber (33) arranged to house the radial turbine (1 1), provided with a communication passage with the propulsion pipe (35),

- The rotational drive means of the rotary distributor (19) comprise deflector members (36, 37) of the jet of water generated by the rotation of the turbine (1 1).

9 / Apparatus according to claim 8 characterized in that:

- The suction chamber (33) of the rotary distributor (19) has a feed opening (34) opening in the upper part of said suction chamber,

channeling means (13-16) incorporating filtration means (12) are adapted for channeling the water between at least one suction opening (14-15) in the lower portion of the cleaning apparatus and the supply opening (34) of the suction chamber (33).

10 / Apparatus cleaner according to claim 9 characterized in that it comprises a frame (1) having the form of a frame defining a volume adapted to accommodate a filtering tank (13) removable enclosing the filter means (12) and provided with a bottom wall (13a) in which is provided each suction opening (14, 15).

11 / Apparatus according to claim 10 characterized in that it comprises, on either side of each suction opening (14, 15) along the longitudinal axis of displacement (y), a lip (56, 57 ) extending at the edge of said suction opening, of height adapted to delimit, above the immersed surface (P), a suction passage of reduced section.

12 / Apparatus cleaner according to one of claims 10 or 1 1 characterized in that the frame (1) has a shape adapted to be placed edge in a position for removal of the filter tank (13).

13 / Apparatus according to one of claims 9 to 12 characterized in that the rotary distributor (19) has water passage openings (42, 43) arranged opposite the feed opening (34) of the suction chamber (33) and adapted, on the one hand, to be released in each of the lateral propulsion positions, and secondly, to be obstructed in the two longitudinal propulsion positions.

14 / Apparatus cleaner according to claims 7 and 13 taken together characterized in that it comprises a cowling (17, 18) adapted to house the rotary distributor (19), in which are formed, on the one hand, the propulsion vents fixed (20-23), and secondly, lights (29-32) adapted to be in correspondence with the water passage openings (42, 43) of the rotary distributor (19) in each of the two positions lateral propulsion.

15 / Apparatus according to one of claims 6 to 14 characterized in that the indexing means comprise radial stop members (50-53) projecting on the periphery of the rotary distributor (19), and a stop member (45) associated with actuating means (47, 48) able to move said stop member between interceptive positions of the stop members (50-53) and retracted positions relative to said stop members.

16 / Apparatus according to claim 15 characterized in that:

- the radial stop members (50-53) and the stop member

(45) are arranged such that said stop member has a first interception position of the stop members (50-53) defining the lateral propulsion positions of the rotary distributor (19), and a second interception position stop members (50-53) defining the longitudinal propulsion positions of the rotary distributor (19),

the actuating means (47, 48) comprise an active state for holding the stop member (45) in one of its two interception positions and a passive state for holding said stop member in its second position interception.

17 / Apparatus according to claim 16 characterized in that the actuating means (47, 48) are of the electrical supply type and have an active state, obtained during their power supply, for holding the stop member ( 45) in its intercepting position of the stop members (50-53) defining the lateral propulsion positions of the rotary distributor (19), and a passive state, obtained in the absence of a power supply, for maintaining the stop member (45) in its interception position of the stop members (50-53) defining the longitudinal propulsion positions of the rotary distributor (19).

18 / Apparatus according to claim 17 characterized in that:

the stop elements (52, 53) defining the lateral propulsion positions of the rotary distributor (19) are offset, along an axis parallel to the axis of rotation (z), with respect to the stop members (50, 51) defining the longitudinal propulsion positions of said rotary distributor (19),

the stop member consists of a lever articulated about a pivot axis orthogonal to a radial axis with respect to the axis of rotation, - The actuating means comprise an electromagnet (47) adapted to rotate the stop member (45) about its pivot axis (46).