WO2015063433A1

WO2015063433A1 - Facility for covering and uncovering a surface using adjustable leaves without a dedicated storage space

Info

Publication number: WO2015063433A1
Application number: PCT/FR2014/052793
Authority: WO
Inventors: Alexandre Byszenski; Frédéric FORETTI
Original assignee: Biossun
Priority date: 2013-11-04
Filing date: 2014-11-04
Publication date: 2015-05-07
Also published as: FR3012840B1; FR3012840A1

Abstract

The invention concerns a facility comprising adjustable leaves for covering and uncovering a surface (2), said adjustable leaves comprising: - on each side of the adjacent ends of the leaves, a mechanism for orienting the leaves according to the pivot axes of same and for moving the leaves between a deployed position and a storage position; - a control system for simultaneously moving, in the same direction, the inner strands (11i, 15i) of belts in order to move the leaves in translation and for simultaneously moving, in opposing directions, the inner strands (11i, 15i) of the belts in order to orient the leaves; - a device for distributing the leaves mounted on a movable carriage (42) biased in elastic return to bear against the stored head leaf (3a) or the storage edge (5), the movable carriage (42) being provided with return pulleys (43, 44) for the inner strands of the belts, positioned in a superposed manner to delimit the end of the channel along which the leaves are driven.

Description

ί

INSTALLATION FOR COVERING AND DISCOVERING A SURFACE WITH ORIENTABLE BLADES WITHOUT SPACE OF

DEDICATED STORAGE

The present invention relates to the technical field of installations for covering and discovering a surface using steerable blades extending parallel to each other in order to constitute a protective or closure screen of a surface in the general sense, these steerable rods having the possibility in the deployed position relative to its surface, to open or close depending on particular climatic conditions.

The object of the invention is for many applications to constitute in particular a roof covering part of pergolas or terraces for example, or a protective screen for doors or windows.

In the state of the art, it is known, for example from document AU 7 190 396, to make a roof from a succession of orientable blades extending parallel to each other along their longitudinal edges. The steerable blades are equipped at each of their ends with a pivot axis supported by a supporting structure. The steerable blades are driven together in pivoting by means of a motorization system to occupy either a closed position in which the blades are jotntives by their longitudinal edges or an open position in which the blades are not contiguous for allow the passage of air and sun's rays of light

Compared to a fixed roof that only allows to protect a space of rain and sun, this roof also offers the possibility to control, at will, aeration and sunshine of the space equipped with such a roof . This openable roof however has the disadvantage of leaving permanently blades orientable above the surface to be covered, which can be a disadvantage especially during a long period of no sun.

To remedy this problem, it is known in the field of shutters, patent FR 1 475 733, an installation for covering and discover an opening, with orientable blades extending parallel to each other being equipped at each of their ends with a pivot axis. The installation comprises on each side adjacent ends of the blades, a mechanism adapted to orient the blades according to their pivot axes and to move the blades between an extended position and a stored position in a magazine in which the blades are contiguous to each other. other.

Each orientation and displacement mechanism comprises, on the one hand, an endless chain or belt mounted endlessly between fixed return pulleys and having an outer and an inner side, and on the other hand, an internal belt mounted without end between fixed return pulleys and having an outer strand and an inner strand which extends vis-à-vis the inner strand of the outer belt to delimit between them a drive corridor for the blades. Each orientation and displacement mechanism comprises a synchronized motorization system of the external belts and a synchronized motorization system of the internal belts. The motorization of the drive systems is controlled to firstly move the inner strands in the same direction to move the blades in translation in the drive corridor and, secondly, to move the inner strands in reverse directions to orient the blades.

Each orientation and displacement mechanism comprises a blade distribution device driven by its synchronized belt drive systems and adapted to, in a direction of movement of the strands, successively engage in a constant spacing pitch, its blades in the and, in a direction of movement to the contrary, successively releasing his blades from the drive cage so that they occupy their positio row.

In addition to the fact that this installation is not adapted to constitute a roof, the major disadvantage of such an installation is the need to provide a blade storage magazine. This storage warehouse is arranged either to encroach on the surface to be covered or extension of the area to be covered if a space is available for this purpose.

EP 1 595 053 discloses a mechanism for closing an opening from blades each provided at each of their ends with a nut cooperating with a motorized screw extending over the entire length of the opening. The nuts are engaged in a guide rail to ensure the translation of the blades during the rotation of the screws. This mechanism also comprises, at a store of storing slides in the folded position, a rack cooperating with the nuts to distribute the blades seion a constant pitch or ensure their stacking in the store. Furthermore, each end of the blades is provided with a roller cooperating with a system ensuring the orientation of the blades. The main disadvantage of this solution is the presence of a storage magazine in which the blades can not be oriented. In addition, this sol tion is complex and expensive to achieve due to the use of screws of great length and accuracy required especially for the change of guidance between the slide and the rack.

The present invention aims to overcome the drawbacks of the prior art by proposing an installation to cover and discover a vertical as well as horizontal surface, with swiveling blades, simple and inexpensive design, not requiring to dedicate a storage space for the blades in the folded position.

To achieve such an objective, the purpose of the installation is to cover and discover a surface by means of steerable rods extending parallel to each other, being equipped at each of their ends with a pivot axis provided with a drive sprocket, the installation comprising;

on each side of the adjacent ends of the blades, a mechanism for orienting the blades according to their axes of pivoting and displacement of the blades between an extended position and a stowed position in which the blades are contiguous to one another between that of said blades which is its row-head blade and a storage edge, each an orientation and displacement mechanism comprising, on the one hand, an endless toothed belt mounted endlessly between first fixed return pulleys and having an outer and an inner strand and, on the other hand, an endless internal belt mounted endlessly between fixed second return pulleys having an outer strand and an inner strand extending opposite the inner strand of the outer belt to delimit between them a drive path for the leaf sprockets;

a synchronized motorization system of the external belts of the two mechanisms of orientation and displacement;

- a synchronized motorization system of the internal belts of the two mechanisms of orientation and displacement;

a control system for the motorization of the motorization systems for, on the one hand, simultaneously ensuring the movement in the same direction of the inner strands to move the blades in translation in the drive corridor and, on the other hand, simultaneously Moving inner strands in opposite directions to orient the blades;

and for each orientation and displacement mechanism, a device for distributing the blades driven by a synchronized motorization system of the belts and adapted to, in a direction of movement of the strands, successively engage in a constant spacing step, the The blades in the drive lane and, in a direction of opposite movement, successively clear the blades of the drive lane so that they occupy their stored position.

According to the invention, each iames distribution device is mounted on a movable carriage biased elastically to bear on the row head blade or the storage edge, the movable carriage being equipped with pulleys for the strands interiors of the belts, positioned in a superimposed manner to delimit the end of the drive lane which is movable between the row head blade and the storage edge The installation according to the invention also comprises in combination one and / or the other of the following additional characteristics:

each movable carriage comprises for each of the belts an intermediate return pulley interposed between one of said fixed return pulleys and one of said return pulleys delimiting the end of the driving lane;

each intermediate louse is rotated by a geared motor forming part of the synchronized motorization systems of the belts;

the geared motors of synchronized belt drive systems are mounted on the mobile carriage;

each synchronized motorization system of the external or internal belts of the two steering and displacement mechanisms comprises two geared motors and systems for measuring the angular positioning of the intermediate return pulleys, these angular positioning measuring systems being connected to the control system motorization;

each end of the blades comprises a roller and in that the distribution device comprises a disk driven in rotation by a return pulley delimiting the end of the drive corridor, this etan disk intended to cooperate by its profile with the roller of the row head blade or the roller of the head blade to be stored, this disk being provided with a notch for gripping the roller of said head blade so that the developed length of the profile of the distribution disk corresponds to the pitch of spaced apart between the blades;

the notch for gripping the disk is arranged to drive the blade so that the pinion of the row head blade co-operates with the inner strands of the belts or the pinion of the head blade to be taken apart disengages from the inner strands of the belts;

the control system of the actuator drives the drive systems so as to position the blades in the stowed position before controlling them to ensure the translation of the blades; each orientation and displacement mechanism comprises an open support section for receiving the leaf sprockets, each movable carriage being guided in translation in the section by means of rolling members;

each orientation and displacement mechanism comprises a support profile equipped with guide ribs for the belts;

the sprockets are successively decafed between the blades in the longitudinal direction of the blades, and in that the belts have at least a double width of the length of the sprockets.

Various other characteristics appear from the description given below with reference to the accompanying drawings which show, by way of non-limiting examples, embodiments of the subject of the invention.

Figure 1 is a perspective view of an exemplary embodiment of an installation according to the invention in which the blades are all deployed in erect position.

Figure 2 is a perspective view of an exemplary embodiment of the Installation according to the invention whereini the blades are all in a stowed position.

Figure 3 is a partial perspective view of the installation according to the invention wherein only a portion of the blades is in the deployed position being joined to each other.

Figure 4 is an exploded perspective view showing the mounting of the movable carriage provided with the transmission belts.

Figure 5 is a view similar to Figure 4 showing the movable carriage without the transmission belts.

Figures 6 to 9 are plan views illustrating the principle of deployment of a blade.

Figure 10 is a detail view showing the cooperation of a blade with a distribution disc.

Figures 11 to 13 are plan views illustrating the principle of orientation of a blade, Figure 14 is a cross-sectional view showing the guiding of a blade.

As is more particularly apparent from Figs. 1 to 3, the object of the invention relates to an installation 1 for covering and uncovering a surface 2 by a series of orientable blades 3 relaxing behind each other, preferably being all identical and parallel to each other along their longitudinal axis. The blades 3 are provided at each of their ends with a pivot axis 4 to allow their orientation. The installation 1 comprises on each side adjacent ends of the blades 3, a mechanism I for orienting the blades 3 according to their axes of pivoting and displacement of the blades 3 between a fully deployed position (FIG 1) and a stowed position (FIG. Fig, 2} wherein Ses iames 3 are contiguous to each other between that of said blades which constitutes the row head blade 3a and a storage edge 5. In this stored position, the blades 3 can not be oriented and the blades 3 occupy an erect position, that is to say that its blades are located in parallel planes substantially perpendicular to the surface 2,

The mechanisms I ensure the displacement and orientation of the blades 3 so that they together form a protective screen opening and closing at will. Depending on the intended applications, this screen forms a roof or a protective shutter that can completely cover its surface 2, or only a part of the surface 2 (Fig. 3), with possibility of orientation of the blades on demand when the blades are not in a stowed position.

Each orientable blade 3 has a generally rectangular shape defined by first and second longitudinal edges 3 ₁ and 3 ₂ parallel to one another and refitted between them by first and second parallel end edges 3 ₃ and 3 _4. between them. Of course, the number and dimensions of the steerable blades 3 are adapted to the dimensions of the rectangular surface 2 to be covered. Preferably and as is apparent from the drawings, the orientable blades 3 together form a rectangular-shaped screen delimited on the one hand by the longitudinal edge 3i of the first blade 3 and by the longitudinal edge 3 ₂ of the last blade 3 and 'other hand, all of the first end edges 3a of blades together and aligned by the set of second end edges 3 ₄ for blades aligned together.

A first mechanism I for moving and orienting the blades 3 is mounted to extend along the first end edges 3s of the blades while a second mechanism I for moving and orienting the blades 3 is mounted for extend along the second end edges 3 "of the blades. Advantageously, the first and second mechanisms I of displacement and orientation are identical so that for the sake of simplification, only one mechanism will be detailed in the following description.

Each movement and orientation mechanism I comprises a frame or support 6 in the form of a rectangular cross-section profile open simply in the direction of the blades to allow their movement. These two sections 6 are interconnected at their ends, by connecting profiles 7 together forming a frame delimiting the surface 2. One of the connecting sections 7 defines the abutment edge for the longitudinal edge 3i of the first blade 3 while the other section 7 defines the storage edge 5 for the longitudinal edge 32 of the last blade 3. The first blade and the last blade are taken into consideration the direction of deployment of the blades represented by the arrow f for which the blades pass from the stowed position to the deployed position. When folding the blades 3 in the opposite direction f direction, the first and last blades are considered to be the same as those designated during the deployment operation

The installation i according to the invention is intended to be fixed by any appropriate means on a carrier structure not shown adapted to the intended application. In the case where the installation i according to the invention is intended to form the roof of a pergola for example, the supporting structure comprises posts supporting the frame formed by the connecting sections 7 and the profiles 6 of the mechanisms of displacement and Guidance I. According to the invention, each orientation and displacement mechanism I comprises an endless toothed belt 11 which is said to be without external end relative to the surface 2. Each external toothed crown 11 is mounted between first fixed return pulleys 12, 13 mounted. on the profiles 6 near the connecting sections 7. Each external toothed belt 11 has an outer strand lie and an inner strand bed extends in a superimposed manner.

Each orientation and displacement mechanism I also comprises a so-called internal endless toothed belt in the sense that it is closer to the surface 2 than the toothed pulley 11. Each internal toothed belt 15 is mounted between second fixed pulleys. 16, 17 mounted on the profiles 6 close to the connecting sections 1, each internal toothed belt 15 has an outer strand 15e and an inner strand 151 The outer and inner strands are mounted in the superposition position so that the strand 15i interior of the inner belt 15 extends vis-à-vis the inner strand 11 of the outer belt to delimit between them a drive lane 18 for the blades 3,

As shown in the drawings, each pivot pin 4 equipping the ends of the fames 3 is provided with a pinion 19 adapted to engage inside the drive lane 18 and cooperate with the inner strands 15, ili external and internal belts.

The installation 1 according to the invention also comprises a synchronized motorization system 21 of the outer belts 11 of the two mechanisms of orientation and displacement I. This synchronized motorization system 21 comprises for each outer belt 11, a geared motor 22 driving in rotation an intermediate so-called toothed pulley 23 with which the external belt 11 cooperates. This intermediate pulley 23, the function of which will appear more precisely in the following description, constitutes the driving member of the external belt, which, as a function of the direction of rotation of the geared motor, to move in translation the inner strand 11 in the direction of deployment f or in the direction of folding fl (Fig. 4). Advantageously, the operation of the two geared motors 22 of the two orientation and displacement mechanisms I is synchronized so as to ensure the simultaneous and identical rotation of the intermediate pulleys 23. In other words, the inner strands li1 of the two outer belts 11 are moved simultaneously in the same direction and at the same linear speed. For this purpose, the installation comprises a not shown control system, geared motors 22 for simultaneously driving the two geared motors in the same way. Advantageously, each intermediate return pulley 23 is associated with an angular positioning measurement system te! an encoder connected to the control system for controlling the synchronization of the operation The installation 1 according to the invention also comprises a synchronized motorization system 30 internal belts 15 of the two mechanisms of orientation and displacement I. This system of motorization synchronized 30 comprises for each inner belt 15, a geared motor 31 driving in rotation an intermediate said toothed pulley 32 with which cooperates the inner belt 15. This intermediate pulley 32 whose function will appear more precisely in the following description constitutes the driving member of the inner belt 15 allowing, in function of the direction of rotation of the geared motor 31, to translate the inner strand 15t in translation in the direction of deployment f or in the direction of folding f 1,

Advantageously, the operation of the two gearmotors 31 of the two steering and displacement mechanisms is synchronized so as to ensure the simultaneous and identical rotation of the intermediate pulleys 32. In other words, the inner strands 15 of the inner belts 15 are displaced. simultaneously in the same direction and at the same speed. For this purpose, the geared motors 31 are simultaneously driven in the same way, by the not shown control system. Advantageously, each intermediate return pulley 32 is associated with an angular positioning measuring system such as an encoder connected to the control system for controlling the synchronization of the operation of geared motors 31.

As indicated above, the installation 1 comprises a rotational control system of the geared motors 22, 31 which ensure the simultaneous movement of the two external toothed belts 11 and the simultaneous displacement of the two internal toothed belts 15. This control system It is in the form of an electronic control box that can be controlled preferably with a remote control.

In accordance with the invention, the control system is also configured to seize the direction of motorization of the drive systems 21, 30 to ensure that the inner strands 11i, 15i move in the same direction in the same direction to move the yames in translation. in the drive channel and, on the other hand, simultaneously move the inner strands 11i, 15i in opposite directions to orient the blades.

Indeed, as it appears from the Fíg. 11 to 13, the displacement of the internal strands 111, 151 at the same speed in the same direction leads to a translation of the blades whose gears 19 are engaged in the drive channel 18 being in engagement with the inner strands 111, 15i belts (Fig. 11). Thus, the displacement of the internal strands 11, 15 at the same speed in the direction f leads to the deployment of the blades while the displacement of the inner strands 11i, 15i at the same speed in the direction fl leads to the folding of the blades in their stowed position. . Indeed, its sprockets 19 of the blades are not rotated by the internal strands lli, 15K

Conversely, the movement of the inner strands 111, 151 in opposite directions (e.g., the direction f for the inner strand 15 and the direction f1 for the inner strand 11 (Fig. 12)) leads to a pivoting of the yams around their gears. 19 which are rotated by the internal strands 1i, 15i of the belts, of course, the degree of pivoting of the blades is controlled by the value of the displacement between the inner strands 1i, 15i of the belts. , 12, blades 3 Deployed pivot in the direction of the 3-row blades. The Ftg. 13 illustrates a pivoting in opposite direction of the deployed blades 3 when the inner strand 15i is driven in the direction of deployment fl while the inner strand 11li is driven in the direction of folding f.

According to an advantageous characteristic of embodiment, each blade 3 is guided in translation during its linear displacement between its stowed position and its deployed position. For this purpose and as is apparent from FIG. 14, each end of the blades 3 is provided with a guide stud 35 cooperating with a slideway 36 arranged along the entire length of each profile 6.

The installation 1 according to the invention also comprises, for each movement and orientation mechanism I, a distribution device 40 of the blades 3, adapted, in accordance with the direction of movement of the inner strands 1, 15, engage successively according to a constant spacing step, the blades 3 in the drive chute 18 and, in the direction of the opposite displacement fl, successively release the blades 3 of the drive lane 18 so that they occupy their stored position.

According to the invention, each dispensing device 40 is mounted on a mobile carriage 42 biased elastically to bear on the row head blade 3a or storage edge 5 in the case where no blade 3 is stored . As will be better understood in the following description, the movable carriage 42 moves in translation in the opposite direction to the direction of movement of the belts.

Each mobile carriage 42 is equipped with return pulleys 43, 44 for the inner strands of the bed, 151 belts, positioned in a superimposed manner to define the end of the drive chute 18. Advantageously, the intermediate pulleys 23, 32 are mounted on the mobile carriage 42 and each intermediate pulley is interposed between one of the fixed return pulleys 13, 17 adjacent to the storage edge 5 and Tune said return pulleys 43, 44 defining the end of the drive lane 18. As is clear from the figures, the return pulleys 43, 44 mounted on the mobile carriage and the intermediate pulleys 23, 32 are positioned in mirror symmetry for each belt 11, 15 (Fig. 6, 11),

Thus, the external side of the outer belt 11 passes between the first fixed return sprockets 12, 13 while the inner strand 11 cooperates with the intermediate pulley 23 and the return pulley 43 mounted on the movable carriage, this pulley referral 43 being mounted downstream of the intermediate pulley 23 in the direction of repiying f. The inner strand 11 thus has an "S" shape between the barrels 13, 43.

Similarly, the outer run 15e of the internal belt 15 passes between the second fixed return pulleys 16, 17 while the inner runner 15I cooperates with the intermediate pulley 32 and the return pulley 44 mounted on the movable carriage, this pulley of referral 44 being mounted downstream of the intermediate pulley 32 in the direction of ref folding fl. The inner strand 15 thus has an inverted "S" shape between the pulleys 17, 44.

Each mobile carriage 42 is thus equipped with two return pulleys

43, 44 for the inner strands 11, 15i of the belts, positioned in a superimposed manner to delimit the end of the drive lane 18 which is movable between the row head blade 3a and the storage edge 5.

As already indicated, each mobile carriage 42 is constantly elastically biased towards the storage edge 5. In the illustrated example, each mobile carriage 42 is subjected to the action of two jacks 48 mounted between the profile 6 and the mobile trolley so that that the latter is pushed towards the storage edge 5. Each movable carriage 42 is guided in translation in the section 6 by means of intermediate rolling members 49.

In the example illustrated, the profile 6 comprises along its length, ribs forming guide surfaces and rolling for the members 49 carried by two flanges 51 interconnected to form the body of each movable carriage 42, each support profile 6 is equipped over all or part of its length with guide ribs 52 for the belts and in particular with internal strands 11, 15i.

According to an advantageous variant embodiment, the geared motors 22, 31 of the synchronized drive systems of the belts are mounted On the movable carriage 42. In the illustrated example, the geared motors 22, 31 rotate the intermediate pulleys 23, 32, but it is clear that the motorization of the belts 11, 15 can be carried out differently.

According to an advantageous characteristic of embodiment, the dispensing device 40 comprises a disk 60 rotated by a deflection pulley 43, 44 defining the end of the driving lane 18. Preferably, the disk 60 is mounted on the pulley This disc 60 is intended to cooperate by its profii with a roller 62 carried by each end of the blades 3. In the example illustrated in FIG. 10, each blade 3 comprises at each end, a roller 62 located between the pinion 19 and the guide pad 35 equipping the end edge of the blade.

More specifically, the disk 60 cooperates with either the roller 62 of the row head blade 3a or with the roller 62 of the storage head blade 3b during the folding operation of the blades 3. The head blade to be stored 3b corresponds to the blade 3 inserted in the drive lane 18 and located closest to the two return pulleys 43, 44 delimiting the moving end of the driving lane 18.

It should be noted that to the extent that the disc 60 is supported by the movable carriage 42 which is urged resiliently in the refolding direction fl, the disc 60 exerts a pressure force also in this direction and in particular on the roller of the row head blade 3a which thus keeps in position the blades located between said blade and the storage edge 5. For this purpose, a positioning stop is placed at the storage edge 5 so that the last blade and then each of the following occupy an erect position.

The disk 60 is provided with a gripping notch 65 cooperating with the roller 62 of the row head blade 3a during the deployment operation of the blades 3 or with the cheerfulness 62 of the storage head blade 3b during the operation. 3. Thus, during the blade deployment operation during which the disc 60 is rotated by the pulley 44, each roller 62 of the head blade 3a row comes to cooperate with this notch 65 so that the rotation of the disc 60 leads to move by the edge of the notch, each roller in the direction f, so that each pinion 19 of this iame head 3a comes s' The head blade 3a is thus supported by the inner strands of the belts. Conversely, during the folding operation of the yams 3, each roller 62 of the head blade 3b to take place cooperates with this notch 65 so that the rotation of the disk 60 leads to move, by the edge of the notch, each roller in the direction i f, so that each pinion 19 of this iame head to tidy 3b disengages the internal strands of the belts. At the outlet of the notch 65, the disc 60 exerts a pressure along the direction of the yarn and from this yam which becomes the row head blade.

According to an advantageous characteristic, the developed length of the profile of the distribution disk 60 corresponds to the spacing pitch between the blades. Indeed, each disk 60 ensures the engagement of the blades successively in the drive lane 18 at each rotation of the disk 60.

The operation of the installation 1 derives directly from the foregoing description.

In the position illustrated in FIG. 2, all the blades 3 are in the stowed position, that is to say that they are in a stuck or upright position between the moving carriage 42 and the storage edge 5. By the action of the jacks 48, the movable carriage 42 exerts a bearing force through the profile of the distribution disks 60 on the rollers 62 of the tilted head blade 3a which holds the other rows in position (Fig. 6 ).

The operation of deployment of the blades 3 consists in controlling its geared motors 22, 31 so that the belts 11 move at the same speed and the same direction ie the direction of deployment f. The rotation of the return pulleys 44 leads to the rotation of the discs 60 and the feeding of the notches 65 to cooperate with the rollers 62 of the tilted head blade 3a (Fig. 7). The rollers 62 are supported by the disks 60 which drive them to bring the gears 19 of the row head blade 3a to to cooperate with the internal strands, belts (Fig. 8). The displacement of the inner strands 15 of the belts in translation in the direction f thus causes the translation or deployment, above its surface 2, of this head yam 3a (FIG 9).

î! It should be noted that to the extent that the mobile carriage 42 is elastically biased, the discs 60 come into abutment, as soon as they are no longer in contact with your rollers 62 of the row head blade 3a, with the blade rollers 62. next row (Fig. 8, 9). The movable carriage 42 and consequently the return pulleys 43, 44 forming the end of the drive lane 18, move towards the storage edge 5, that is to say in the direction of repi fi cation fi.

The further rotation of the geared motors 22, 31 to drive the belts in the direction of deployment f leads to the successive deployment and each rotation turn of the disks 60, blades 3 which are found deployed above Sa surface 2. The deployment of the blades 3 can be stopped for part of the stowed blades (Fig. 3) or continued until the deployment of all the yams on the surface 2 (Fig. 1). In the latter case, the movable carriage 42 comes into contact with the storage edge 5 due to the deployment of all the blades.

It emerges from the installation seion 1'invention that it does not require to dedicate a space for storage of the blades 3 to the extent that the storage space changes according to the number of rows of blades. Such an installation allows to use all of the surface 2 to cover, without the need for additional space for storage.

When the blades 3 are deployed above its surface 2, the blades can be pivoted on demand to be inclined or extend parallel to each other to be contiguous. For this purpose, the control system of the geared motors 22, 31 is controlled so that its internal belts 15 and the outer belts 11 are displaced in the opposite direction (Fig, 12, 13). Of course, pivoting of the blades 3 can be achieved even if only a portion of the blades is deployed (Fig. 3). The folding operation of the blades 3 is carried out in the reverse manner described above. It should be noted that before controlling its gearmotors 22, 31 to ensure storage of the blades, the control system drives the drive systems so as to position the blades 3 in the stowed or erect position. When the blades 3 are oriented in this upright position, the geared reductors 22, 31 are controlled so that the belts 11, 15 move at the same speed and the same direction, ie the direction of rep. The first blade 3 to be stored is supported by the disks 60, with the notches 65 which drive the rollers 62 moving the disengagement of the sprockets 19 relative to the belts 11, 15. The disks 60 come by their profile resting on the rollers 62 of said blade which is in the stowed position. The blades 3 are thus stored successively at each turn of the distribution disks 60.

According to an advantageous embodiment, its pinions 19 are shifted in the longitudinal direction, from a blade 3 to a next blade 3 to limit the bulk of iames row position. Each toothed belt 11 has at least a double width with respect to the width of the pinions to receive the pinions 19 offset between them.

According to an advantageous characteristic, the blades 3 are shaped for its rainwater collection as ceia is described in the patent FR2947845.

The invention is not limited to the examples described and shown because various modifications can be made without departing from its scope.

Claims

I - Installation comprising steerable blades (3) for covering and uncovering a surface (2), said steerable blades (3) extending parallel to each other, being equipped at each of their ends with a pivot axis (4) ) provided with a drive pinion (19), comprising:

- On each side of the adjacent ends of the blades, a mechanism (I) for orienting the blades according to their axes of pivoting and movement of the blades between an extended position and a stowed position in which its blades are contiguous to each other between that blade cutter which constitutes the row head blade (3a) and a storage edge (5), each orientation and displacement mechanism comprising on the one hand an endless toothed belt (II) mounted endlessly between first fixed pulleys with an outer strand (lie) and an inner strand (11) and, on the other hand, an internal toothed belt (15) mounted endlessly between second fixed return pulleys (16, 17) and having an outer strand (15e) and an inner strand (11i) which extends opposite the inner strand (11) of the outer belt to delimit between them a drive passage (18) for the leaf sprockets (19). ;

- a synchronized motorization system (21) of the outer belts (11) of the two mechanisms of orientation and displacement (I);

- a synchronized motorization system (30) of the inner belts (15) of the two mechanisms of orientation and displacement (I);

a control system for the motorization of the motorization systems (21, 30) for, on the one hand, simultaneously ensuring the displacement in the same direction of the inner strands (li 15) to move the blades in translation in the drive corridor; (18) and, on the other hand, simultaneously ensure the displacement of the inner strands (bed, 15i) of the opposite directions to orient the blades;

and for each orientation and displacement mechanism (I), a device (40) for distributing the blades (3) driven by a synchronized motorization system (21, 30) of the belts and adapted to, according to a direction of movement of the strands, engage successively in a constant spacing pitch, his famés (3) in the drive lane (18) and, in a direction of movement contrary, clear successively the blades (3) of the corridor d driving (18) so that they occupy their position S row;

characterized in that each device (40) for distributing the blades (3) is mounted on a movable carriage (42) biased elastically to bear on the row head blade (3a) or the storage edge (5) the movable carriage (42) is equipped with deflection pulleys (43, 44) for the strands of the interiors of the belts, positioned in a superimposed manner to delimit the end of the drive passage (18) which is movable between the head blade row (3a) and the storage edge (5).

2 - Apparatus according to claim 1, characterized in that each mobile trolley (42) comprises for each of the belts (11, 15), an intermediate intermediate pulley (23, 32) interposed between one of said fixed return pulleys ( 13, 17) and one of the deflecting pulleys (43, 44) defining the end of the drive lane.

3 - Installation according to claim 2, characterized in that each intermediate pulley (23, 32) is rotated by a geared motor0 (22, 31) forming part of synchronized motorization systems (21, 30) of the belts.

4 - Installation according to claim 3, characterized in that the geared motors (22, 31) synchronized drive systems of the belts are mounted on the mobile truck (42).

5 - Installation according to claims 3 or 4, characterized in that each synchronized motorization system (21, 30) external or internal belts of the two mechanisms of orientation and displacement (I) comprises two geared motors (22, 31) and systems for measuring the angular positioning of the intermediate return pulleys, these angular positioning measuring systems being connected to the control system of the motorization. 6 - Installation according to one of claims 1 to 5, characterized in that each end of the blades (3) comprises a roller (62) and in that the dispensing device (40) comprises a disc (60) rotated by a return lug (43, 44) delimiting the end of the drive lane (18), the disk (60) being adapted to cooperate by its profile with the roller (62) of the row head blade (3a) or the roller of the head blade to be stored, this disc (60) being provided with a notch (65) for gripping the roller (62) of said head blade so that the developed length of the profile of the distribution disk ( 60) corresponds to the spacing pitch between the blades.

7 - Installation according to claim 6, characterized in that the notch gripping (65) of the disk (60) is arranged to drive its blade (3) so that the pinion (19) of the row head blade cooperates with the inner strands (bed, 15i) of the belts or the pinion of the head blade to be stored disengages the inner strands (11i, 15i) of the belts.

8 - Installation according to one of claims 1 to 7, characterized in that the actuator control system drives the drive systems (21, 30) so as to position the blades (3) in the row position before the pilot to ensure the translation of the blades.

9 - Installation according to one of claims i to 8, characterized in that each orientation and displacement mechanism (I) comprises a support profile (6) open to receive the pinions (19) of the blades (3), each movable carriage (42) is guided in translation in the profile by means of rolling members (49).

10 - Installation according to the claim, characterized in that each mechanism of orientation and displacement (I) comprises a support profile (6) provided with guide ribs (52) for the belts (11, 15).

11 - Installation according to one of claims 1 to 10, characterized in that the pinions (19) are offset successively between the blades (3) in the longitudinal direction of the blades, and in that the belts (11, 15) have at least a double width of the length of the gears.