WO2018011091A1 - Mobile bottom for pool - Google Patents

Abstract

The invention relates to a system (1) including a pool (2) having a given level (N) and at least one first mobile assembly (E1) including a supporting structure (3) and means (7) for controlling the movement of the supporting structure between a high configuration and a low configuration. The supporting structure (3) includes a first portion (4a) and a second portion (5a) and a first hinging pin (X1) for hinging said first and second portions of the supporting structure relative to one another so that, in the high configuration, the supporting structure forms a terrace and, in the low configuration, the entire planar surface (S2) belonging to the second portion (5a) of the supporting structure (3) and at least one portion of the planar surface (S1) belonging to the first portion (4a) of the supporting structure (3) are below said given level (N) of the pool (2).

Description

 Mobile bottom for pond

 The invention relates to the general field of systems consisting of a basin and at least a first movable assembly vis-à-vis said basin.

 BACKGROUND OF THE INVENTION

 It is known to at least partially cover a pool such as a swimming pool using at least a first movable assembly vis-à-vis said basin. This at least one first movable assembly comprises a carrier structure and means for controlling the displacement of the carrier structure adapted to vertically move at least a portion of said carrier structure between:

 a high configuration in which an upper face of this supporting structure forms a terrace extending above a given level of the basin; and

 a low configuration in which at least a portion of said upper face of the supporting structure extends below said given level of the basin.

 Thus, in high configuration, the upper face of the support structure forms a terrace extending above the given level of the basin and in low configuration, at least a portion of this upper face of the supporting structure extends below of the given level of the basin to, for example, form in the basin a bottom of a bathing area.

 The supporting structure is a structure formed of a single horizontal block suspended for example by means of cables or jacks with respect to hooking points arranged along an internal wall of the basin, for example at the bottom of the basin or on the sides of the basin,

In the case where the pool has a staircase, it is necessary to make special arrangements of the supporting structure to allow its displacement vis-à-vis the basin without abutting vertically on steps of the stairs. Such arrangements may consist in equipping the supporting structure with more er eurs above steps respectively movable vertically above the steps of the stairs. This involves complex mechanisms to allow the displacement of these steps above the staircase, Given the complexity of such mechanisms necessary for the recovery of the steps, it is sometimes preferred to remove the staircase to replace it by a vertical ladder extending along one side of the basin, the carrier structure may comprise a peripheral notch allowing the passage of the ladder throughout the movement of the carrier structure between its high and low configurations.

 It is therefore necessary to develop a supporting structure that is compatible with basins with stairs and with pools equipped with vertical ladder.

 OBJECT OF THE INVENTION

An object of the present invention is to provide a system comprising a basin and at least one first movable ^¬ vis-à-vis the basin, the first mobile assembly to be mechanically simple and able to pass between high and low configurations y included in cases where the basin would have a staircase.

 SUMMARY OF THE INVENTION

To this end, it is proposed according to the invention a system comprising a basin and at least one first movable ^¬ vis-à-vis the basin, this at least one pre- first moving assembly comprising a carrier structure and means for controlling the displacement of the carrier structure adapted to vertically move at least a portion of said carrier structure between;

 a high configuration in which an upper face of this supporting structure forms a terrace extending above a given level of the basin; and

 a low configuration in which at least a portion of said upper face of the supporting structure extends below said given level of bass.in.

 The system according to the invention is essentially characterized in that:

 the carrier structure is at least composed of a first carrier structure portion and a second carrier structure portion and a first hinge axis of these first and second carrier structure portions with respect to the other; and in that

 when the carrier structure is in its high configuration, a plane surface belonging to the first portion of the supporting structure is coplanar with a plane surface belonging to the second portion of the supporting structure, these plane surfaces of the first and second portions of the supporting structure constituting together at least part of said upper face forming the terrace; and in that

when the carrier structure is in its low configuration, the entire plane surface belonging to the second portion of the carrier structure and at least a portion of the plane surface belonging to the first portion of the support structure are located below said given level of the basin, and

- said first portion of the support structure being moreover connected to the basin by a second articulation axis parallel to said first hinge axis, the support structure being arranged to s ^'' away from a side of the pool during its passage to its high configuration to its low configuration.

For the understanding of the invention, the term given level of the basin is a horizontal and fixed level of the basin. This given level is defined by the position of a body of water in the basin at a given moment of water filling of the basin.

 The first axis of articulation interconnecting the first and second portions of carrier structures allows, at. least during the passage of the carrier structure between its high and low configurations, a pivoting of these first and second portions relative to each other.

 With the system according to the invention, the carrier structure is therefore foldable by pivoting the first and second portions of the bearing structure relative to each other about the first axis of articulation.

When this carrier structure is in its high configuration, the plane surfaces of the first and second portions of the supporting structure are substantially coplanar with each other and they together form a flat terrace extending above the given level of the basin, that is, ie above the water if this given water level of the basin is a high water level containing naked in the basin. In this high configuration, if the basin has a staircase extending into the basin, the supporting structure can extend above this staircase.

 When the bearing structure is in its low configuration, the second portion flat surface extends completely below the given level of the basin and thus forms a floor of a bathing area in the basin and the flat surface of the first portion of the pool. carrying structure is at least partially below this given level of the basin

 When passing between the high and low configurations the first and second portions of the carrier structure are rotated relative to each other by rotation about the first hinge axis. By going from the high configuration to the low configuration, this pivoting induces a rapprochement between the first and second portions. This approximation implies that at least one edge of one of these first and portions progressively deviates vis-à-vis a side of the basin leaving a free space between the supporting structure and the side of the basin.

 This space is sufficient to allow the installation of a staircase and / or ladder along the side of the basin which deviates the carrier structure during its transition from its high configuration to its low configuration.

When the carrier structure is in its high configuration, it has a terminal end, in this case an edge, which is vis-à-vis a side of the basin. During the passage of the supporting structure from its high configuration to its low configuration, this end end progressively deviates from this side of the basin to create a passage space between the supporting structure and this side of the basin, this implying that the supporting structure away from this side of the basin during its passage from the high configuration to the low configuration. This makes it possible to have a space between the supporting structure and the side of the basin from which it deviates as it allows the implantation of steps along this side of the basin. These steps can be steps or ladders.

As the supporting structure is connected to the pool via a second hinge axis, the entire bearing structure can pivot relative to the pool by rotation along the second axis of articulation. Moreover, since the first and second portions of the carrier structure are interconnected via the first hinge axis parallel to said second hinge axis, when the high configuration is passed to the low configuration, on the one hand a rotation of the bearing structure around the second axis and secondly a rotation of the first and second bearing structure portions relative to each other (these first and second portions being close to one another) , the second portion of the supporting structure thus moving away from one of the sides of the basin, in this case it deviates vis-à-vis the side of the basin which is farthest from the second axis of articulation. This double rotation along the first and second axes increases the free volume between the supporting structure and the side of the basin from which it deviates which allows to have an even more important location to position a staircase. In a preferred embodiment of the system according to the invention, when the carrier structure is in its low configuration, the plane surface belonging to the first portion of the carrier structure is then oriented relative to the plane surface belonging to the second portion. of the carrier structure, an orientation angle of these flat surfaces relative to each other between 45 ° and 135 °.

 By angle of orientation of the planar surfaces of the first and second portions of the supporting structure relative to one another is meant the value of the projecting angle formed between these planar surfaces. This orientation angle is at least partially open / oriented towards said given level of the basin, that is to say open upwards.

 With such an orientation angle, when the structure is in low configuration, the first portion of the support structure forms a lateral side of bathing area in the basin and the second portion of the support structure forms a bathing area background.

 The system according to the invention is particularly advantageous because it makes it possible to selectively transform the plane surfaces of the first and second portions of the supporting structure into a flat terrace or within the limits of a bathing area in the basin.

According to a preferred embodiment of the invention, said first portion of the carrier structure is connected to the basin by a second axis articulation parallel to said first axis of articulation.

 With this second axis of articulation, the first portion of the carrier structure can, during the passage of the carrier structure between its high and low configurations, pivot relative to the basin.

 As the first and second axes of articulation are parallel to each other, during the passage of the carrier structure between its high and low configurations, we observe:

 - On the one hand a rotation around the second axis of articulation of the first bearing structure, this first portion of the bearing structure and pivoting relative to the basin; and

 - On the other hand a rotation of the second carrier structure portion around the first axis of articulation, the second potion of the bearing structure and pivoting relative to the first portion of the carrier structure.

 The current orientation angle of the planar face of the first support structure vis-à-vis the planar face of the second support structure, varies throughout the passage of the carrier structure between its high and low configurations.

 This current orientation angle is 180 °, when the carrier structure is in its high configuration. The planar faces of the first and second carrier structure portions then form an upper flat surface serving as emerged terrace.

BRIEF DESCRIPTION OF THE DRAWINGS Other characteristics and advantages of the invention will emerge clearly from the description which is given hereinafter, by way of indication and in no way limitative, with reference to the appended drawings, in which:

 FIG. 1 shows a system 1 according to the invention equipped with a basin 2 and a first mobile assembly E1 comprising a carrying structure 3 that is mobile with respect to the basin under the effect of control means 7, this carrier structure being here in a low configuration and forming, by its flat upper face F, a terrace emerging above the level N of the basin 2;

 - Figure 2 shows the system 1 of Figure 1 with its carrier structure 3 being moved between its high and low configurations under the effect of control means? comprising inflated balloons 13, 14 which serve as floats;

 - Figure 3 shows the system 1 of Figures 1 and 2 while the carrier structure 3 is maintained in high configuration under the effect of the balloons 13, 14;

FIG. 4 shows a system 1 according to the invention in an embodiment where the carrier structure 3 comprises three portions 4a, 5a, 6a hinged together so as to selectively adopt a high configuration in which these three portions 4a, 5a, 6a , together form a plane flat face F emerging above the N level and a low configuration in which at least two of these three portions 5a, 6a are completely immersed, in this FIG. 4, the supporting structure moves between its high configurations. and low; - Figure 5 shows the system 1 of Figure 4 while the carrier structure 3 is in a particular intermediate configuration, this particular intermediate configuration is called paddling configuration;

 FIG. 6 is a perspective top view of a system 1 according to the invention specifically adapted to pass between its high and low configurations by rotation of the first portions 4a around an axis Xi perpendicular to the longitudinal axis of the basin, in this figure the basin comprises a staircase disposed at one longitudinal end of the basin and the second portion 5a has a terminal protrusion intended to cover the staircase when the bearing structure is in high configuration;

 FIG. 7 is a perspective top view of a system 1 according to the invention specifically adapted to pass between its high and low configurations by rotation of the first portions 4a around an axis XI parallel to the longitudinal axis of the basin, in this figure the basin has a staircase disposed laterally along a longitudinal edge of the basin and the second portion 5a has a terminal protrusion for covering the staircase when the bearing structure is in high configuration;

- Figure 8a shows a cross-sectional view of a system 1 according to the invention with its carrier structure in high configuration, a stand 8 being deployed from the carrier structure 3 to prevent its movement to its low configuration; - Figure 8b shows a longitudinal sectional view of the system of Figure 8a, wherein we see that the carrier structure comprises at least one carrier beam P2 for supporting blades for forming an upper face F of the carrier structure;

 FIG. 8c shows a perspective view of a portion of a supporting structure 3 on which locking means are mounted, in this case bolts 12 to selectively prohibit all displacements of the supporting structure 3 with respect to the basin 2 ;

 - Figure 9 shows a longitudinal sectional view of a system 1 according to the invention where it is seen firstly that the carrier structure 3 can be supported by balloons 13, 14 above the given level N the basin and secondly, that the system 1 according to the invention may comprise position detection means 16 of the supporting structure relative to the basin 2;

 - Figure 10a shows a first embodiment of the system 1 according to the invention comprising two sets E1 and E2 to cover a pool with two stairs formed on opposite side edges of a rectangular pool;

FIG. 10b shows a second exemplary embodiment of the system 1 according to the invention adapted to cover long basins, in this mode the system 1 comprises at least one assembly E1 whose carrier structure comprises several portions, in this case 5, articulated together by several parallel axes ent them, in this case 4 axes; Figure 10c shows a system 1 according to the invention comprising several sets E1, E2 adjacent and arranged to form an L-shaped terrace above an L-shaped basin;

 Figure 10d shows a system 1 according to the invention comprising a single assembly E1 forming a trapezoidal terrace;

 Figure 10e shows a system 1 according to the invention comprising a single assembly E1 forming a rectangular terrace;

 FIG. 10f presents a system 1 according to the invention comprising a single assembly E1 forming a rectangular terrace truncated at an angle;

 Figure 10g shows a system 1 according to the invention comprising a single assembly E1 forming a rectangular terrace truncated in two of its corners;

 FIG. 10h shows a system 1 according to the invention comprising two sets E1, - E2 according to the invention forming together an S-shaped terrace;

 FIG. 11 shows a system 1 according to the invention provided with a control unit Uc adapted to control the supply of gas to the various floats 13, 14, 17 in order to synchronize the movements of the various articulated portions 4a, 5a and to allow moving between high and low configurations;

FIG. 12 shows an example of a carrier structure 3 in which the blades L have a transverse comb profile provided with teeth 21 and where cross members T1, T2 extend between carrying beams P1 which support them, some of these crosspieces T2 being able to extend between the teeth of the same blade L to limit the thickness of the supporting structure and its bulk in the basin;

 - Figure 13 shows another example of carrier structure 3 where the blades L extend perpendicularly to the sleepers T1 which carry them and perpendicular to the carrier beams P1.

 DETAILED DESCRIPTION OF THE INVENTION

 As indicated above and illustrated in particular in Figures 1 to 8a, 9, 10a to 10h and 11, the invention essentially relates to a system 1 comprising a basin 2 and at least a first mobile assembly E1 vis-à-vis the basin 1 Each at least one first moving assembly E1, E2 comprises a carrier structure 3 and means 7 for controlling the displacement of this carrier structure 3 to vertically move at least a portion of said carrier structure 3 between a high configuration of the carrier structure and a low configuration of the carrier structure.

 In its high configuration, an upper face F of this supporting structure 3 forms a terrace extending above a given level N of the basin 2.

 In its low configuration at least a portion of said upper face F of the carrier structure extends below said given level N of the basin.

 When the pool 2 is no longer used for swimming it is covered by the supporting structure which forms a terrace. This limits the loss of space and safety problems caused by the presence of an open basin.

According to the invention the carrier structure 3 is at least constituted of the first and second portions 4a, 5a carrier structure. At least a first axis of articulation X1 of these first and second carrier structure portions enables them to be articulated with respect to each other in such a way that:

 - When the carrier structure 3 is in its high configuration, a flat surface S1 belonging to the first portion 4a. of the supporting structure is co-planar with a plane surface S2 belonging to the second portion 5a of the supporting structure, these planar surfaces S1, S2 of the first and second portions of the supporting structure then constituting together at least a part of said upper face F forming the terrace; and

 when the carrier structure 3 is in its low configuration, the entire plane surface S2 belonging to the second portion 5a of the carrier structure 3 and at least a portion of the plane surface SI belonging to the first portion 4a of the structure carrier 3 are below said given level N of the basin 2.

 Furthermore, said first portion 4a of the carrier structure 3 is connected to the pool by a second axis of articulation X2 parallel to said first axis of articulation X1. The support structure is thus arranged to deviate vis-à-vis a side of the basin during its transition from its high configuration to its low configuration.

As said first portion 4a of the supporting structure 3 is connected to the basin by the second axis of articulation X2, during the passage of the bearing structure towards its low configuration, this first portion 4a pivots about this parallel axis X2 and it is getting close to one side of the pool which is along this axis X2 and which is closest to this axis X2. Moreover, as at the same time the second portion 5a of the bearing structure pivots about the first axis XI to approach the first portion 4a, it follows that these first and second portions 4a, 5a are closer together on the side of the basin along which extends the second axis X2. It can be seen that the entire supporting structure deviates from one side of the pelvis opposite the side of the pelvis which is closest to this second axis of articulation X2.

 The articulation, via the first axis X1, allows at least during the passage of the carrier structure between its high and low configurations, to vary the orientation of these portions 4a, 5a relative to each other and d have a volume of displacement of the supporting structure vis-à-vis the basin 2 releasing a large space between a C1 side of the basin and the structure 3. As shown in Figures 1 to 5, at least one step M can be arranged in the space between the C1 side and the outer limit of the clearance volume.

This step M ^' may be a platform arranged to be coplanar with the surface S2 when the carrier structure 3 is in its low configuration. This step M may optionally be one of the steps of a staircase 18, as in Figures 4, 5, 6 or in some cases not shown, the first step of a ladder.

When the carrier structure 3 is in low configuration, the flat surface S2 of the second portion 5a extends below and vis-à-vis the given level N. In this low configuration, this surface S2 form so prefer at least a portion of a bottom of a bathing area in the basin 2.

 As indicated above, the first portion 4a of the supporting structure 3 is connected to the basin 2 by a second axis of articulation X2 parallel to the first axis of articulation X1. This connection is robust and allows the guiding of the supporting structure with respect to the basin 2. In addition, as illustrated in FIG. 8c, the supporting structure may comprise lateral brushes 19 that rub against sides of the basin during the passage of the structure. carrier between its high and low configurations. These brushes 19 can be mounted movably on the supporting structure 3 to allow adjustment of lateral movement amplitude between the sides of the basin 2 and the supporting structure 3.

 Preferably, the carrier structure 3 is shaped so that when it is in its low configuration, then the plane surface SI is oriented relative to the flat surface S2, an orientation angle A of these flat surfaces one compared to the other between 45 ° and 135 °. Thus the surface 32 can serve as the bottom of the bathing area.

 As illustrated in FIGS. 4 and 5, the supporting structure may comprise more than two portions hinged together. In this case, the carrier structure comprises a third portion 6a of bearing structure and a third axis of articulation X3 for articulating the third portion 6a of bearing structure 3 relative to the second portion 5a of bearing structure 3.

The first, second and third axes articulation X1, X2, X3 are parallel to each other. This carrier structure 3 is thus adapted to adopt during its movement between its high and low configuration, an intermediate configuration, called paddling configuration, wherein a flat surface S3 belonging to the third portion. 6a of the supporting structure is coplanar with said flat surface S2 belonging to the second portion 5a of the carrier structure 3. Ideally, at least one stair step M is coplanar with these surfaces S2 and S3 in a wading configuration.

 The carrier structure 3 is further arranged so that:

 when it is in its high configuration, these flat surfaces S2, S3 which belong to the second and third portions 5a, 6a are then copying with each other; and for that

 when the poxteu.se structure is in its low configuration, the totality of the plane surface S 3 belonging to the third portion 6a of the carrier structure is then below said given level N of the basin 2.

 Preferably, in the low configuration, the plane surface S2 belonging to the second portion 5a of the supporting structure is oriented with respect to the flat surface S3 belonging to the third bearing structure portion, with an orientation angle of these flat surfaces. S2, S3 relative to each other between 45 ° and 135 °.

This makes it possible to limit the dimensions of the support structure portions to better adapt them to the shape basin when the structure is in low configuration.

 For the understanding of the invention, by orientation angle of the planar surfaces S2, S3 of the second and third portions 5a, 6a of the supporting structure with respect to each other, is meant an open salient angle value in the direction of said given level N of the basin, that is to say open towards the top.

 As illustrated in FIGS. 8a, 8b, the first mobile assembly E1 may comprise at least one stand 8 mounted to pivot relative to the carrier structure 3 between a folded position in which this at least one stand 8 extends at a distance from a bottom of the basin and an extended position in which this at least one stand is in contact against said bottom of the basin 2 to oppose the passage of the carrier structure 3 from its high configuration to its low configuration.

 This at least one stand 8 is connected to an actuator 3 of this at least one stand to move it from its deployed position to its folded position and vice versa.

This actuator 9 may comprise a jack and / or an inflatable float may have a fixed or variable external volume such as a balloon. When actuating the actuator 9, for example inflating the float, a force is generated to pivot the stand relative to a pivot which connects it to the supporting structure. Ideally, this pivoting force is oriented to pivot the stand to its folded position and preferably maintain it in this folded position, along the support structure and away from the bottom of the basin.

 The carrier structure 3 can then move closer to the bottom of the basin and move to its low configuration.

Conversely, when the lever handle 8 is in the extended position, it can come into contact against the bottom of the basin and s ^f oppose movement of the supporting structure towards the bottom of the tank 2 while the bearing.

 The first mobile assembly E1 may comprise several crutches 8 arranged under a lower face of the carrier structure 3 of this first mobile assembly. Each of these crutches is pivotally mounted relative to the supporting structure 3 via a pivot of its own, these pivots being distant from each other.

 These different crutches can be of different sizes from each other to adapt to the shape of the bottom of the basin and to define one or more intermediate configurations of blocking of the supporting structure, these intermediate configurations being reached during the displacement of the supporting structure between its high and low configurations.

 At least some of these crutches may comprise a clean wheel arranged to be able to roll against the bottom of the basin during the movement of the bolt between its folded position and its deployed position.

 As illustrated in FIG. 8c, the system 1 according to the invention can also comprise locking means having several strikes 10 implanted at different locations along lateral walls 11 of the basin and several bolts 12 carried by the supporting structure 3.

Each of these bolts 12 is movable with respect to the street- carrier 3 between:

 an unlocked position of its own and in which this bolt 12 is remote from one of said latches 10 corresponding thereto; and

 - A locked position that is specific to it and wherein the bolt 12 enters the striker 10 which corresponds to it to at least prohibit the passage of the carrier structure 3 to its lower position.

 In one. particular embodiment, the assembly E1 may comprise first and second sets of bolts, the bolts of the first set being arranged so as to maintain the carrier structure in its high configuration and the bolts of the second set being arranged to maintain the supporting structure in its intermediate configuration reached when moving between its high and low configurations.

 Thus, it is possible to immobilize the bearing structure with respect to the basin when it is in predetermined configurations such as its high configuration where it forms a terrace (FIGS. 3, 7, 8a, 8b, 8c, 9), its configuration intermediate wading pool where it delimits a maximum depth of the bathing area (Figure 5), its low configuration where it is placed as close as possible to the bottom of the pool to maximize the depth of the swimming area (figures 1).

At least some of these bolts 12 may be operably connected to said at least one stand 8 to be respectively displaced between their respective unlocked and locked positions when moving this at least one stand 8 between its positions. folded and deployed.

 The displacement of these bolts can be done via an articulated arm 24 on the carrier structure 3 and movable under the effect of the swelling of a float 23 hooked on this arm.

 Alternatively, the locking of the supporting structure 3 vis-à-vis the basin 2 by bolts engagement

12 in corresponding strikes 10 can be done under the effect of the pivoting movement of a stand 3 between its deployed and folded positions. Conversely, under the effect of the pivoting movement of a stand from its deployed position to its folded position, it is also possible to control the unlocking of the support structure 3 vis-à-vis the basin 2 (by release / distance of bolts 12 vis-à-vis the corresponding strikes 10),

 We will now, with reference to Figures 1 to 5, 9 and 11, describe an example of control means 7 used in the various embodiments of the invention.

 These control means 7 comprise:

 on the one hand at least one first float 13 having variable buoyancy as a function of a quantity of gas (in this case air) admitted into this first float via a gas supply pipe 25 to this first float

13; and

 - On the other hand at least a second float 14 having a variable buoyancy according to a quantity of gas admitted into the second float 14 via a gas supply pipe 22 to the second float 14.

Said at least one first float 13 is disposed under the first portion 4a of the supporting structure 3 to support it when the first float 13 has a positive buoyancy in the water basin.

 Similarly, the second float 14 is disposed under the second portion 5a of the carrier structure 3 to support it when the second float 14 has a positive buoyancy in 1 / water basin.

 As illustrated in Figures 1, when the floats 13, 14 are not inflated, the carrier structure can move to its low configuration and stay there under the effect of its own weight. In this figure 1, the floats 13, 14 are not inflated and are not represented.

 Preferably the first float 13 is a first balloon 13 expandable under the effect of the gas admitted into the first float and the second float 14 is a second balloon 14 expandable under the effect of the gas admitted into the second float 14.

 The use of expandable balloons to achieve the floats 13, 14 is particularly interesting because when the carrier structure is in high configuration, the inflated balloons occupy a large volume in the basin.

 During the immersion of the support structure, that is to say during the transition to the low configuration, these balloons deflate and occupy a volume that decreases while the immersed volume of the carrier structure is increasing.

There is therefore a compensation between the variation of immersed volume of the balloons and the variation of the immersed volume of the supporting structure. This compensation allows to minimize the variation of the level of water in the basin 2 during the passage of the supporting structure 3 between its high and low configurations.

 Thanks to the invention, the variation of water level in the pool is thus minimized, which allows:

 on the one hand to have a "skimmer" thin / height to remove pollutants in the basin {The basin and has improved aesthetics); and

 - On the other hand to limit the need for filling or draining water basin, to compensate for a possible level variation during the displacement of the carrier structure.

 Note that the number of floats 13, 14 and their respective positions vis-à-vis the carrier structure 3 varies depending on the shape of the carrier structure, the need for support of this structure 3 and the number of articulated portions 4a , 5a, 6a which make up the carrier structure 3.

 For example, in the embodiment of FIGS. 4 and 5, the first float 13 can be arranged not under the first portion 4a of the supporting structure, but under the third portion 6a of this supporting structure 3.

 As shown in FIGS. 1 to 5, the synchronization of the inflation and deflation of the floats induces a particular displacement of the carrier structure.

In order to control this synchronization, the system according to the invention may comprise a control unit Uc adapted to control the supply of gas to the first float 13 and the supply of gas to the second float 14. This control unit Uc may be connected to position detection means of the carrier structure and / or may comprise a delay system for controlling different times of supply of gas to the floats 13, 14.

 As illustrated in FIG. 9, these detection means may be adapted to generate at least one high configuration signal Si for the attention of said control unit Uc when the carrier structure 3 is in its high configuration.

 The control unit Uc is arranged so that, on receipt of this high configuration signal Si, it prevents the admission of gas to the first and second floats 13, 14. The control unit Oc can also be connected to the actuators 9 crutches and balloons 23 which control the movement of the bolts 12.

 The position detection means of the support structure may for example comprise a water flow sensor 16 at an overflow mouth of the basin 2.

 Many other types of sensors can be connected to the control unit Uc to enable it to detect a current level of water in the pool and a current position of the supporting structure 3 vis-à-vis the basin.

For example, the control unit may comprise a gas pressure sensor in the floats to estimate for example a deflated state which implies that the carrier structure is in low configuration, a state of high pressure which implies an inflated state of the floats compatible with a high configuration of the supporting structure. The state of high pressure can be used to trigger a stop inflation of at least some floats and possibly an alarm in case of overpressure.

 It should be noted that a measurement means embedded on the carrier structure 3 can also be used to detect one or more distances away from the supporting structure vis-à-vis the bottom of the basin.

 This onboard measurement means may be one or more depth meters using a reflection effect to measure a distance of a structure point 3 from the bottom.

 Also, as illustrated in FIG. 11, the control unit Uc can be connected to a man / machine interface Int to allow an operator of the system to control an admission of gas to one or more floats and / or a gas evacuation. from one or more of the floats.

 The control unit Uc can also be connected to a water inlet 22 to the basin to control a filling and keep a constant water level.

 According to the instructions given by the user via the interface Int and possibly by measurements of different sensors and / or information from the timer system, the control unit Oc can execute an algorithm and control the passage of the structure carrier to one of its predetermined configurations (high, low and intermediate).

In order to promote a synchronization of the movements of the different portions 4a, 5a, 6a of the supporting structure 3 with respect to each other, the floats can be interconnected via calibrated connecting lines. In the example of Figure 11, the system comprises two floats mounted on the second portion 5a and a float mounted on the first portion 4a, the first portion being that which is articulated to the pool via a horizontal axis X2. One of the floats 14 mounted on the second portion is closer to the first hinge axis X1 than is the other float 17. The third float 17 is connected to a B1 inflatable controlled via the Uc control unit for selectively admit gas, in this case air to the third float 17. The second float 14 is connected to a deflation device 15 itself controlled by the control unit Oc to selectively control a gas outlet. Second inflator B2 selectively controlled by the control unit Oc can also be connected to the second float 14 to inflate. The use of two inflators B1, B2 has an advantage in terms of safety of the inflation function and an advantage in terms of speed of movement of the carrier structure (increase of the flow of gas admitted to the floats under the effect conjugated inflators B1, B2),

 To favor the displacement of the second portion 5a relative to the displacement of the first portion 4a, it is ensured that the float or floats placed under the first portion 4a receive or evacuate a gas flow rate always lower than the gas flow rate received or evacuated by the floats placed under the second portion 5a.

For this, it is possible, as illustrated in FIG. 11, for the gas supply pipe 25 connected to the first float has a lower section to the sections of the gas supply pipes for admission and / or evacuation of gas out floats 14, 17 mounted under the second portion 5a.

 It follows that, during inflation with the inflator or inflators B1, B2, we first raise the second portion 5a before the first portion 4a which promotes the removal of the terminal end of this second portion vis-à-vis the corresponding side of the basin.

 This synchronization makes it possible to maximize the space available between the C1 side of the basin and the displacement volume of the supporting structure.

 Then, under the effect of the rise in pressure in the balloons 14, 17, the balloon 13 placed under the first portion 4a inflates via the pipe 25 which connects it to the float 14. The first portion 4a then rises progressively up to to come in line with the second portion 5a.

 The carrier structure 3 is then in high configuration.

 For its passage in low configuration, it favors the deflation of the balloon or balloons that are closest to the first axis of articulation X1 in order to raise the end of the second portion 5a which is adjacent to the side C1 of the basin while lowering the end of this second portion 5a adjacent to the axis of articulation X1. Again, this maximizes the space available for positioning a staircase 18 along the pool side C1.

 As shown in Figures 10a to

10h, depending on the size and shape of basin 2, the System 1 according to the invention may comprise one or more sets E1, E2, each set E1, E2 comprising at least two portions hinged together.

 The deployment directions of the assemblies E1, E2 are chosen as a function of the geometry of the basin 2, the position of the staircase (s), the forces allowable by the assemblies E1, E2 while limiting as much as possible the space requirement of these assemblies. in the basin.

 Design examples of the carrier structure will now be presented with reference to Figures 6, 7, 8a, 8b, 12 and 13.

 The first portion 4a of the carrier structure 3 preferably comprises lemeni. at least two carrier beams P1, P2 parallel to each other and several blades L parallel to each other so as to form together said plane surface SI of the first portion 4a of the carrier structure.

 The second portion 5a of the carrier structure 3 may also comprise at least two carrier beams P3 parallel to each other and several blades L parallel to each other so as to form together said flat surface S2 of the second portion 5a of the carrier structure.

 These carrying beams P1, P2, P3 can extend parallel to the length of the basin as in Figure 12.

 Alternatively, these carrier beams P1, P2, P3 may extend perpendicular to the length of the basin as in Figure 13.

Preferably, as illustrated in FIGS. 12 and 13, the blades L of the first and second por- 4a, 5a of the support structure are profiles each having a comb cross section with teeth 21 of the comb profile oriented towards a bottom surface of the basin 2,

 These teeth 21 of the comb profile are interconnected by a cross section having a planar upper face.

 The use of blades L with comb profiles is particularly interesting in that the recessed areas between the teeth of the comb profile can limit the size of the platform which can be thinner and more resistant fout limiting the volume of water displaced during the immersion of the profiles. This reduces the water level variations and the risk of overflow and / or evacuation of water associated with the immersion of these blades. These profiles can be pultruded.

 In the embodiment where there are several inflatable balloons 13, 14 to support the supporting structure, the volume of these balloons 13, 14 can be reduced since the mass of the carrier structure 3 is minimized by the use of recessed areas between the teeth of the profiles.

 The reduction of the volume of these balloons 13, 14, 17 again involves minimizing the volume of water displaced during the passage of the carrier structure 3 between its high and low configurations. Again, it reduces the risk of pond overflow associated with the displacement of the supporting structure.

The upper faces of the profiles together define the upper face F of this carrier structure 3 in high configuration. Thus, the flat upper face of the profiles L can form a finished floor of the carrier structure 3. Alternatively the flat upper face of the profiles L can serve as a support for a floor covering for forming the finished floor.

 In its various aspects, the invention makes it possible to have a load bearing structure 3 which is resistant and of small thickness, which limits the height of bulk in the basin and maximizes the bathing height available above the carrying structure.

 Moreover the invention is adaptable to a wide variety of basin shapes, which allows use to equip existing basins to renovate or new building basins.

 Finally, the number of balloons used and their respective locations may vary according to the needs for weight support by the moving assembly and according to its geometry.

Claims

 1. System (1) comprising a basin (2) and at least a first moving assembly (E1) vis-à-vis the basin (1), this at least a first mobile assembly (E1) comprising a supporting structure (3) and control means (7) for moving the carrier structure adapted to vertically move at least a portion of said carrier structure (3) between:  a high configuration in which an upper face (F) of this supporting structure (3) forms a terrace extending above a given level (N) of the basin (2); and  a low configuration in which at least a portion of said upper face (F) of the supporting structure extends below said given level (N) of the basin, characterized in that:  the carrier structure (3) is at least constituted by a first carrier structure portion (4a) and a second carrier structure portion (5a) and a first hinge axis (XI) of these first and second portions of bearing structure relative to each other; and in that when the carrier structure (3) is in its high configuration, a plane surface (SI) belonging to the first portion (4a) of the supporting structure is coplanar with a plane surface (S2) belonging to the second portion; (5a) of the carrier structure, these planar surfaces (S1, S2) of the first and second portions of the carrier structure together constituting at least a portion of said upper face (F) forming the terrace; and in that - when the carrier structure (3) is in its low configuration, the entire plane surface (S2) belonging to the second portion (5a) of the carrier structure (3) and at least a portion of the flat surface (S1 ) belonging to the first portion (4a) of the supporting structure (3) are below said given level (N) of the basin (2), said first portion (4a) of the supporting structure (3) being otherwise connected to the basin (2) by a second axis of articulation (X2) parallel to said first axis of articulation (X1), the supporting structure (3) being arranged to move away from one side (C1) of the basin during its transition from its high configuration to its low configuration,  2. System (1) according to claim 1, in which a staircase is installed along said side (C1) from which the carrier structure departs when it passes from its high configuration to its low configuration.  3. System (1) according to claim 1, wherein a ladder is installed along said side (C1) which deviates the carrier structure during its transition from its high configuration to its low configuration.  4. System according to any one of claims 1 to 3, wherein when the carrier structure (3) is in its low configuration, then the planar surface (S1) belonging to the first portion (4a) of the structure carrier (3) is oriented with respect to the plane surface (S2) belonging to the second portion of the carrier structure, of an orientation angle (A) of these planar surfaces with respect to each other between 45 ° and 135 °. 5. System according to any one of the claims tions 1 to 4, comprising a platform arranged to be coplanar with the surface (S2) belonging to the second portion (5a) of the carrier structure (3) when the carrier structure (3) is in its low configuration.  6. System according to any one of claims 1 to 5, wherein said at least one first movable assembly (E1) comprises at least one stand (8) pivotally mounted relative to the carrier structure (3) between a folded position in this at least one stand (8) extends at a distance from a bottom of the basin and an extended position in which the at least one stand is in contact against the bottom of the basin to oppose the passage of the supporting structure (3) from its high configuration to its low configuration.  7. System (1) according to any one of claims 1 to 6, further comprising locking means having several strikes (10) located at different locations along lateral walls (11) of the basin and several bolts (12). ) carried by the supporting structure (3), each of these bolts (12) being movable relative to the supporting structure (3) between:  an unlocked position of its own and in which this bolt (12) is remote from one of said latches (10) corresponding thereto; and  - A locked position of its own and wherein the bolt (12) enters the striker (10) corresponding to prohibit the passage of the carrier structure (3) to its lower position. 8. System according to claims 6 and 7, wherein at least some of these bolts (12) are connected functionally to said at least one stand (8) to be respectively moved between their respective unlocked and locked positions when moving this at least one stand (8) between its folded and unfolded positions.  9. System according to any one of claims 1 to 8, wherein the control means (7) of the displacement of the carrier structure comprise:  - On the one hand at least a first float (13) having a variable buoyancy according to a quantity of gas admitted into the first float via a gas supply line to the first float (13); and - On the other hand at least a second float (14) having a variable f lottabil ity depending on a quantity of gas admitted into the second float (14) via a gas supply line to the second float (14) ;  - Said at least one first float (13) being disposed under the first portion (4a) of the supporting structure (3) to support it when the first float (13) has a positive buoyancy in the water basin; and  - Said at least one second float (14) being disposed under the second portion (5a) of the carrier structure (3) for 1a support when the second float (14) has a positive buoyancy in the water basin. 10. System according to claim 9, wherein the first float (13) is a first expandable balloon under the effect of the gas admitted into the first float and the second float (14) is a second balloon expandable under the effect of gas admitted in this second float (14), 11. System according to any one of claims 9 or 10, further comprising a control unit (Uc) adapted to control the supply of gas to the first float (13) and the supply of gas to the second flow- said control unit (Uc) being connected to means for detecting the position of the carrier structure, said detection means being adapted to generate at least one high configuration signal for the attention of said control unit. when the carrier structure (3) is in its high configuration, the control unit (Uc) being arranged to receive at least one high configuration signal, it prohibits the admission of gas to the first and second floats (13, 14),  12. The system of claim 11, wherein said means for detecting the position of the carrier structure comprises a water flow sensor (16) at an overflow mouth of the basin (2).  The system of any one of claims 1 to 12, wherein;  - The first portion (4a) of the carrier structure (3) comprises at least two carrier beams (P1, P2) parallel to each other and a plurality of blades (L) parallel to each other so as to form together said plane surface (SI) of the first portion (4a) of the supporting structure; and - The second portion (5a) of the carrier structure (3) comprises at least two carrier beams (P3) parallel to each other and a plurality of blades (L) parallel to each other so as to form together said flat surface (S2) of the second portion. (5a) of the supporting structure. 14. The system of claim 13, wherein the blades (L) of the first and. second portions (4a, 5a) of the supporting structure are profiles each having a comb cross-section with comb profile teeth oriented towards a bottom surface of the basin (2), these comb profile teeth being connected between them by a cross section having a planar upper face.  15, System according to any one of claims 1 to 14, wherein the carrier structure comprises a third portion (6a) of bearing structure and a third axis of articulation (X3) for articulating the third portion (6a) of carrier structure (3) with respect to the second carrier structure portion (5a) (3), the first and third hinge axes (XI, X3) being parallel to each other, the carrier structure (3) being adapted to adopt when its displacement between its high and low configuration, an intermediate configuration, called paddling configuration, in which a plane surface (S3) belonging to the third portion (6a) of the supporting structure is coplanar with said plane surface (S2) belonging to the second portion (5a) of the carrier structure (3), the carrier structure (3) being such that:  when this carrier structure (3) is in its high configuration, these planar surfaces (S2, S3) which belong to the second and third portions (5a, 6a) of the carrier structure are then coplanar with each other; and when the carrier structure is in its low configuration, the entire plane surface (S3) belonging to the third portion (6a) of the supporting structure is below said given level (N) of the basin (2).  16. System according to claim 15, in which when the carrier structure is in its low configuration, the plane surface (S2) belonging to the second portion (5a) of the carrier structure is then oriented with respect to the flat surface. (S3) belonging to the third carrier structure portion, an orientation angle of these planar surfaces (S2, S3) relative to each other between 45 ° and 135 °.  17. System according to any one of claims 15 or 16, comprising at least one step coplanar planar surfaces (52, S3) belonging to the second and third portions (5a, 6a) of the carrier structure paddling configuration.