EP3207190A1

EP3207190A1 - Unit for covering and uncovering a surface using self-propelled adjustable slats

Info

Publication number: EP3207190A1
Application number: EP15793866.3A
Authority: EP
Inventors: Alexandre Byszenski; Frédéric FORETTI
Original assignee: Biossun SAS
Current assignee: Biossun SAS
Priority date: 2014-10-15
Filing date: 2015-10-14
Publication date: 2017-08-23
Anticipated expiration: 2035-10-14
Also published as: FR3027334B1; US20170226746A1; WO2016059344A1; EP3207190B1; ES2703859T3; HRP20182127T1; US10280625B2; FR3027334A1; PT3207190T

Abstract

The invention relates to a unit for covering and uncovering a surface using adjustable slats (3), comprising: for each slat (3), a set of two carriages (10₁, 10₂) guided in translation along guide tracks (8); a system (II) for moving the slats (3), comprising two movement motors (12) for each carriage pair (10₁, 10₂) equipping a slat, each motor being mounted in a different carriage; a system (I) for orientating the slats (3), comprising at least one orientation motor (14) for each carriage pair equipping a slat, said at least one motor being mounted in at least one of the carriages; and a control device for moving at least part of the slats in translation and orientating said slats.

Description

INSTALLATION FOR COVERING AND DISCOVERING A SURFACE USING AUTOMOTIVE ORIENTABLE BLADES

The present invention relates to the technical field of installations for covering and uncovering 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 blades steerable having the possibility in the deployed position relative to the surface, to open or close according to particular weather conditions.

The object of (Invention aims for many applications to form 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 steerable 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 joined by their longitudinal edges or an open position in which the blades are not not touching to allow the passage of air and the sun's rays of light,

Compared to a fixed roof that only allows to protect a space rain and sun, this roof also offers the possibility to control, at will, ventilation and sunshine of the space equipped with such a roof This openable roof however has the disadvantage of leaving permanently the steerable blades above the surface to be covered, which can be a disadvantage especially during a long period of non-sunshine.

To remedy this problem, it is known in the field of shutters, by the patent FR 1 475 733, an installation for covering and discovering an opening, with the aid of 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 dislodge 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 that extends vis-à-vis the inner brin of the outer belt to delimit between eu 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 on the one hand, depiacerate in the same sense the inner strands to depiace in translation blades in the drive lane and, secondly, depiacerating its inner strands in reverse directions for orient his iames.

Each orientation and displacement mechanism comprises a device for distributing the blades driven by the synchronized motorization systems of the belts and adapted to, in a direction of movement of the strands, engage successively in a constant spacing pitch, the blades in driving corridor and, in a direction of contrary detraction, release successively iames durii drive so that they occupy their stowed position.

This installation is not designed to be a roof and is in practice unsuitable to cover a relatively large opening. Another 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 is an extension of the surface to be covered if a location is available for this purpose. EP 1 595 053 discloses a mechanism for closing an opening from blades each provided at each end thereof 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 slide storage magazine in the folded position, a rack cooperating with the nuts to distribute its blades at 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 Orientat) blades.

A disadvantage of this solution is the presence of a storage store in which the fames can not be oriented. In addition, this solution is complex and expensive to achieve due to the use of screws of great length and precision required especially for the change of guiding between the slide and the rack. This solution proves in practice impracticable for! Occultation of a large opening.

The patent application WO 2012/107350 describes a thermal shutter system for windows comprising a series of orientable flaps extending parallel to each other, each being supported by a guide at each of its ends. The installation comprises on both sides flaps, threaded rods cooperating with a gear box fitted to each flap guide. The guides of each shutter are provided with motors for orienting the shutters and for moving the shutters independently of one another.

This installation proves complex and expensive to achieve due to the implementation of threaded rods and the degree of precision required for its assembly. Such an installation is not suitable for covering a large area.

The patent application US 2013/248124 describes a system for controlling the position and orientation of a panel equipping a window with respect to the sun. In an alternative embodiment, this panel is moved in translation with the aid of an onboard electric motor. panel and whose output pinion cooperates with a rack carried by the frame of the window. Such a system is not adapted to cover a surface with fames to be moved in translation and oriented in inclination.

The present invention aims to overcome the drawbacks of the prior art by proposing a simple and inexpensive installation to cover and discover, using steerable angles, a vertical as well as horizontal surface which has variable dimensions in a wide range that can reach large dimensions.

The present invention aims to provide a completely modular installation for easily adapting to the dimensions of the surface to be covered, while offering the advantage of being able to guide at will the blades of various areas of the surface in different positions.

Another object of the invention is to propose an installation that does not require dedicating a storage space for the iames in the folded position.

To achieve such an objective, the installation for covering and discovering with orientable iames, a surface bounded by a supporting structure, comprises:

- A series of steerable blades extending parallel to each other along their longitudinal edges and equipped at each of their end edges, a pivot axis;

a blade orientation system adapted to pivot at least some of the blades so that the longitudinal edges of the blades are contiguous or non-contiguous to respectively close or open the corresponding surface;

- A blade moving system between a stowed position in which the blades are contiguous to each other and an extended position in which at least a portion of the blades are deployed facing the surface; two guide ways in translation of the fames, arranged on the supporting structure while being arranged parallel to each other on two opposite sides of the surface.

According to the invention:

each blade is supported by its pivoting axes by means of a set of two trolleys guided in transiation according to the guideways;

the displacement system comprises, for each pair of carriages equipping a blade, two onboard displacement motors, one in a first carriage and the other in a second carriage, each of which rotates a drive gear in translation of the first carriage; pivot axis of the blade, the pinion cooperating with a rack mounted on the carrier structure in a direction parallel to its guide path;

The orientation system comprises, for each pair of carriages equipping a blade, at least one orientation motor embedded in at least one of said carriages and connected at right angles to the pivoting axis;

position and displacement sensors of the blades;

and a control device connected to the sensors, the displacement motors and the orientation motors, to move in transiation at least a portion of the blades and to orient said translated blades.

In addition, the installation according to the invention may additionally have in combination at least one and / or the following additional characteristics:

the orientation system comprises for each iame, an orientation motor mounted on one of the carriages equipping said blade;

the trolleys equipped with a displacement motor and an orientation motor on the one hand, and its trolleys equipped with a displacement motor on the other hand are mounted alternately from one iame to the other on each side of the surface to be covered or uncovered;

each carriage equipped with a displacement motor has a main support body for the displacement motor, this main body being provided with a rotation guide system for the axis of pivoting of the blade, freely engaged in a housing; arranged in the blade, the axis δ of pivoting being provided with the pinion and driven in rotation by the displacement motor;

each carriage equipped with a displacement motor and an orientation motor comprises a main support body for the displacement motor and the orientation motor, the main body being provided with a rotation guide system. a tubular shaft equipped with the pinion and driven in rotation by the moving motor, the pivot axis being mounted on the inside of the tubular shaft being rotated by the orientation motor and mounted integral in rotation with the iame;

each carriage comprises a main body connected by a detachable connecting pin, to a guide bearing cooperating with a guide flight;

each rack is made by a toothed belt fixed on the supporting structure;

the position and displacement sensors of the blades comprise contact sensors mounted on the carriages of a guideway to be actuated by the carriage located upstream in the direction of exit of the blades or by the carrier structure for the carriage of the last blade in the exit direction;

the position and displacement sensors of the blades comprise sensors for measuring the rotation of the displacement motors and its rotation of the orientation motors as well as sensors for detecting the direction of orientation of the blades;

the control device comprises a calibration mode and several prerecorded modes of use each corresponding to a type of positioning of the iames;

the control device controls the operation of the displacement and orientation motors in such a way that prior to the control in displacement of a blade, the control device controls the motor of orientation of said iame to place it in a vertical position if it does not occupy this vertical position; - For a mode of use consisting of its output of a number of iames of their stowed position, the control device controls the operation of the displacement motors of the iames to deploy, so that every time its first blade is advanced by one step, the upstream blade is controlled in displacement, the motors of displacement of the blades being controlled until the blades occupy their position of exit;

the control device drives the displacement motors so that the displacement of the blades corresponds to the distance between two consecutive blades contiguous in a horizontal position;

the control device controls the operation of the orientation motors only if the blade occupies a fixed position different from the stored position.

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 islands are all arranged in erect position.

Figure 2 is a perspective view of an exemplary embodiment of an installation according to the invention wherein the blades are all punctured with a part in contiguous position.

Figure 3 is a sectional view of the installation illustrated in FIG. 2 and showing the pivoting position of the blades in the deployed position.

Figure 4 is an exploded perspective view showing more precisely the mounting of a blade forming part of an installation according to i vention,

Figure 5 is an elevational sectional view showing the mounting of a blade.

Figure 6 is a large scale view showing the realization of a carriage provided with a displacement motor and an orientation motor. Figure 7 is a partial perspective view showing three blades placed in a stowed position.

Figures 8 and 9 are views showing an embodiment of position sensors of the orientation of the blades.

You! that this is more precisely apparent from the Fîg. 1, 2 and 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 extending one behind the other, preferably being all identical and parallel to one another according to their longitudinal axis. Each orientable blade 3 has a generally rectangular shape delimited by first and second longitudinal edges 3 ₁ and 3 ₂ parallel to one another and connected to one another by first and second parallel end edges 3 ₃ and 3 _4. between them. Of course, the number and dimensions of the steerable blades are adapted to the dimensions of the rectangular surface to be covered. Preferably, and as is apparent from the drawings, the slats 3 are able to form together a rectangular screen defined firstly by the longitudinal edge 3i The first blade 3 and the longitudinal edge 3 ₂ ia last blade 3 and secondly, by the set of first end edges 3s blades aligned together and the set of second end edges 3 ₄ for blades aligned together.

The blades 3 are provided at each of their end edges with a pivot axis 4 to allow in particular their orientation. The installation 1 comprises a mechanism I for orienting the blades 3 according to their pivot axis 4 in order to ensure the pivoting of at least some and in a general manner of the set of blades 3 so that the longitudinal edges 3 _Act 3 _two adjacent blades are contiguous to close the corresponding surface or are not contiguous to open the surface 2.

As is apparent from Figs. 2 and 3, the steerable blades 3 can thus form in a zone Z _if a screen to the extent that the longitudinal edges of the blades are contiguous with the longitudinal edges of the adjacent blades. In two adjacent zones Z _¾ the blades 3 are deployed above the surface in an upright or open position. Good Of course, this example of deployment of the slides 3 is given by way of illustration only to the extent that the blades 3 can be deployed and oriented in many other configurations as will be better understood in the following description.

The installation according to the invention also comprises a displacement system II of the blades 3 between a stowed position (FIG 1) and a position partially or completely deployed opposite the surface 2 {FIGS., 2 and 3). In the stowed position, the legs 3 are joined to each other between a row head blade and a storage edge 5 * of a supporting structure or frame 5. In this stored position, the blades 3 can not be oriented and the iames 3 occupy an upright position, that is to say that iames are located in parallel planes substantially perpendicular to the surface 2, namely vertical in the illustrated example.

The systems I and II ensure the displacement and orientation of the blades 3 so that they together form at least one protective screen open and closing at will. Depending on the intended applications, this screen forms a roof or a protective flap that can completely cover the surface 2 or only a part of the surface 2, with the possibility of orientation of the blades on demand when the blades are not in the stowed position. .

The installation 1 also comprises two guide tracks 8 guiding in translation for the blades 3 between a stowed position in which the blades are connected to each other (FIG 1) and a deployed position in iiaiie at least a part or all the blades 3 are deployed facing the surface 2 (FIG. 2, 3),

The guideways 8 are arranged on the supporting structure of the frame 5 made in any appropriate manner depending on the intended applications and surrounding the surface 2 to be covered to advantageously form a frame.

This supporting structure 5 advantageously comprises two longitudinal sections 5 ₂ and 5 ₃ extending parallel to each other along two opposite sides of the surface 2 and parallel to the guide tracks 8. longitudinal profiles ₂ and 5 5s are interconnected at their ends by connecting strips 5i and 5 (not shown) together forming a frame defining the surface 2. One of the 5 ₄ Cable profiles defines the abutment edge for the longitudinal edge 3i of the first yame while the other section S 1 delimits the storage edge for the longitudinal edge 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 i arrow F for which the blades move from the stowed position to the deployed position. When folding the blades 3 in the opposite direction Fi direction F, the first and last blades are considered to be the same as those designated during the deployment operation.

The installation 1 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 1 according to the invention is intended to form the roof of a pergola for example, the carrier structure 5 comprises posts supporting the frame formed by the connecting sections and the longitudinal sections.

According to the invention, each iame 3 is supported at each of its ends more precisely by its pivot axes 4, by a set of two carriages iOi, 10 ₂ guided in translation along the guideways S. As it appears more precisely FIGS. 4 to 6, each blade 3 is supported by its pivot axes 4, with the aid of two carriages 10i, 1G ₂ moving in translation along the guide flights between the stowed position and the deployed position. For this purpose, each carriage iOi, IO ₂ is equipped with a guide bearing 11 cooperating with a guideway 8.

According to the invention the displacement system II comprises for each pair of carriages 10 *, 10 ₂ equipping a blade, preferably two displacement motors 12 each mounted on a carriage. If it should be understood that each blade 3 is motorized by two motors to balance the forces applied to the blades 3. For example, the displacement motors 12 are electric motors for example to brushed direct current, connected to an electrical power source via unrepresented connection cables.

It follows from the above description that the blades 3 are self-propelled and can be moved independently of each other. According to a characteristic of the invention, each blade 3 can also be oriented individually. Thus, the orientation system I comprises for each pair of carriage equipping a blade, at least one and in the example shown, a single orientation motor 14 on one of the two carriages 10i and IO ₂ equipping a blade 3. Each orientation motor 14 is connected anguSaïrement with a pivot axis 4 to place the blade 3 in a determined angular position (perpendicular to the surface 2, ie vertical in the case of a pergola), closing (in horizontal position) or intermediate between these two vertical and horizontal positions,

According to the preferred embodiment illustrated in the drawings, each blade 3 is thus supported, at one of its ends, by a first carriage 10i carrying only a displacement motor 12 and, at its opposite end, by a second carriage 10 ₂ carrying a displacement motor 12 and an orientation motor 14. The carriages 10 ₂ provided with a displacement motor 12 and an orientation motor 14 on the one hand and the carriages 10i equipped with an engine 12 on the other hand are mounted alternately from one blade to the other on each side of the surface 2 to cover or to discover. In other words, the first and second carriages are mounted alternately on each longitudinal side of the supporting structure. Such an arrangement saves space in particular in the stowed position as will be explained in the following description.

Each carriage 10, 10 ₂ has a main body 15 of elongated general elepipedal shape extending mainly along the pivot axis 4. Preferably, the bodies 15 of the first and second carriages are not identical to precisely gain space in position row. As is more particularly apparent from Figs. 4 and 7, the body The main 15 of the second carriages 10 ₂ have a length taken in the direction of extension of the blades 3, smaller than that of the main body of the first carriages 10i. Indeed, the displacement motor 12 is mounted at the end of the main body 15 of the first carriages 10i, thus allowing this main body 15 to have a narrowed shape to receive the main body of a second carriage 10 ₂ - Thus, as is apparent from FIG. 7, the main bodies 15 of the first and second carriages are nested within each other in a stowed position.

Of course, each displacement motor 12 is mounted in any appropriate manner on the main body 15 of each carriage 10 _χ , IO ₂ . Each displacement motor 12 rotates a pinion 17 driving a blade 3 in translation. Each pinion 17 cooperates with a crest 18 mounted on the supporting structure 5 in a direction parallel to the guideway 8 and along the entire length of the track. guide to allow the translation of the blades between their stored and trimmed positions. According to an advantageous variant of embodiment, each rack 18 is made by a toothed belt fixed on the supporting structure 5,

In the exemplary embodiment illustrated in the drawings (Fig. 6), each crest 18 is mounted on the upper face of a median partition 5a presented by each longitudinal profile 5 ₂ , 5 ₃ . According to this example, each longitudinal section 5 ₂ , 5 ₃ has a web 5b extending horizontally and from which rises the medial partition Sa and on both sides, an outer wing 5c and an inner wing 5d. The median partition 5a is equipped with the guiding path 8 made below the outer face receiving the rack 18. In the example shown, the guide path 8 is made by a circular profile rail extending in part in a housing arranged in the space to allow the mounting of the guide bearing 11.

According to a feature of the invention, each longitudinal section 5 ₂ , 5s is made by extrusion. The profiles can be assembled end to end at will to adapt to the dimensions of the surface 2 to cover. Advantageously, the median partition 5a and the inner wing 5d delimit between they a gutter 5e in line with which extend the end edges of the blades to possibly recover rainwater.

The longitudinal sections 5 ₂ , 5 ₃ which are open may advantageously be closed by means of a cover 19 which protects the carriages and is mounted between the outer flange 5 and the median partition 5a. This cover 19 is provided with 19% brushes (Fig. 5) for passage of the pivot axes 4.

Advantageously, each guide bearing 11 is connected to the main body 15 of the carriages 10 1, 10 ₂ via a connection axis 20 of preferably removable character. As is more particularly apparent from Fig. 6, the connecting pin 20 extends substantially perpendicular to the spoke! 8. The connecting pin 20 is mounted to pass through the main body 15 and the bearing 11 coming from one side, supported by a head 21 on the body 15 and being locked in translation by a biocage element 22 such a nut bearing on the underside of the guide bearing.

Advantageously, a spring 23 is engaged on the connecting shaft 20 and interposed between the main body 15 and the guide bearing 11 to compensate for manufacturing and assembly tolerances.

Fig. 5 illustrates more precisely an embodiment of the first carriages 10i only each carrying a displacement motor 12. Each first carriage 10i comprises a central bore 30 equipped with a system 31 for guiding rotation of the pivot axis 4 of the blade . The pivot axis 4 is rotated by the displacement motor 12 whose output shaft cooperates with a toothed wheel 33 fixed angularly on the pivot axis 4. The pinion 17 is angularly connected to the axis of rotation. pivoting 4 and cooperates with the rack 18. The pivot axis 4 is freely engaged inside a housing 32 arranged in the blade 3. The rotation of the displacement motor 12 in one direction or the other direction allows to move in translation, according to the guide path 8, the carriage 10i by the pinion connection 17 / rack 18. The translation of the carriage 10 causes the displacement of the corresponding blade 3, because of the connection in translation between the axis of pivoting 4 and ia Same 3 by the free engagement of pivoting tax 4 in the housing 32 of the blade. Each pinion 17 cooperates directly with a pivot axis 4 (since they are integral) so as to drive in translation the pivot axis 4 of the blade 3, by the pivot connection made between the blade 3 and pivoting Axis 4.

The Fîg, 5 and 6 illustrate more precisely an embodiment of the second carriages 10 ₂ carrying both a displacement motor 12 and an orientation motor 14. Each second carriage 10 ₂ comprises a bore 40 equipped with a system 41 rotary guide for a tubular shaft 42 inside which is freely engaged a pivot axis 4. A pinion 17 which cooperates with the rack 18 is angularly connected to this tubular shaft 42 which is rotated by a gear wheel 44 fixed on the tubular shaft 42 and meshing with the output shaft of the displacement motor 12,

The rotation of the tubular shaft 42 leads to the translation of the carriage IO ₂ causing the translation iia iame whose pivot axis 4 is pushed during the translation of the carriage Each pinion 17 cooperates Indirectly with a pivot axis 4 to drive in translation the pivot axis 4 of the blade 3, by the pivot connection made between the tubular shaft 42 and the pivot axis 4.

Furthermore, the pivot axis 4 is rotated by the orientation motor 14, the output shaft of which cooperates with a toothed wheel 47 wedged in rotation with pivoting axis 4 whose opposite end is engaged to the inside of the housing 32 and angularly bound to the blade with the aid of connecting pins 48 for example. The pivot axis 4 is thus rotatably mounted inside the tubular shaft 42 and can be oriented at will in a stable position determined by means of the orientation motor 14.

The installation 1 also comprises sensors 50 for position and displacement of the blades 3. Such sensors 50 make it possible to know the position of each of the blades 3 at any moment throughout their entire life. course on the guideway. Such displacement position sensors 50 may be made in any suitable manner.

In the example illustrated and as is more specifically apparent from FIG. 7, the position and displacement sensors 50 comprise contact sensors 51 each mounted on a carriage 10 ₁ , 10 ₂ and capable of being actuated by an abutment. 52 carried by the carriage located upstream in the direction of exit of the blades or by the carrier structure for the carriage of the last blade in the direction of exit. These contact sensors 51 make it possible to locate the position of the blades and in particular in their stored position. The displacement sensor 50 also comprises measuring sensors (not shown) for the rotation of the displacement motors 12, such as encoders. These displacement sensors make it possible to know the linear displacement of the carriages 10, 10 ₂ along their guide path 8.

The position and displacement sensors 50 also comprise sensors for measuring the rotation of the orientation motors 14 making it possible to know the angular orientation of the blades 3. The position and displacement sensors 50 also comprise sensors 55 for detecting direction of orientation of the blades. For example, these detection sensors 55 are made by contact sensors as illustrated in FIGS. 8 and 9. To this end, each pivot axis 4 connected to a steering motor 14 is provided with a cam 56 having two angular sectors 57 _f 58 determined which one 57 acts on thee sensor contact (Fig. 8) and the other 58 does not act on the contact (Fig. 9). The cam 56 is positioned to detect the passage from one sector 57 to the other 58 corresponding to a given position of the blades for example upright. The direction of rotation can be identified by determining the direction of passage from one sector to another.

The installation 1 according to the invention also comprises a control device, not shown, connected to the position and displacement sensors 50, to the displacement motors 12 and to the orientation motors 14 making it possible to move in translation at least a part iames 3 and guide said translated Sames. Such a control device thus makes it possible to control the operation of the displacement motors 12 and the orientation motors 14 so as to cover and to discover one or more areas of the surface 2 either on demand or as a function of pre-recorded programs . The control device preferably comprises a remote control and power supply unit relative to the installation and connected to electronic circuits 61 embedded on the carriages 10 _{i (} 10 _{2, which} control device preferably comprises a remote control enabling remotely control the installation according to the invention.

Of course, the control device includes a calibration mode allowing the installation to position the blades 3 in a defined position to locate their position. In general, the pilot control system before any first use, the motors 12, 14 to place the various blades 3 in the stowed position with an erect orientation. The marking of the position of the yams 3 in the stowed position is ensured by the contact sensors 51.

Preferably, the control device has several pre-recorded modes of use each corresponding to a type of positioning of the iames. Thus, it may be provided to pre-register a total coverage mode of the surface 2 or a partial coverage mode. Similarly, it may be provided to pre-register the orientation of the blades is in the erect position or in the closed position, or in an intermediate position.

To cover the surface 2, the blades 3 are successively released from their stored position after a determined displacement step and until the blades occupy their desired exit position. Advantageously, the displacement pitch of the strips corresponds to the spacing between two consecutive adjacent blades in a horizontal position.

Thus, the displacement motors 12 of the first blade 3 are controlled to ensure the translation in the direction F of the carriages 10 ₁ and 10 ₂ of this first blade 3. When this first blade 3 has been 1? displaced by a given pitch, its displacement motors 12 of the second blade are driven to ensure the translation in the direction F of the carriages 10t and lide this second blade 3.

The control device thus plots the displacement motors 12 associated with the blades 3 to be deployed. The control device stops the operation of the displacement motors 12 when the blades 3 occupy their desired deployed position. The operating stop of the displacement motors 12 is ensured either directly by the user according to his choice of deployment of the blades or according to a prerecorded program providing for the positioning of the blades 3 in defined positions provided by the measuring sensors of i rotation of displacement motors 12.

When the deployed blades 3 occupy a fixed position, the control device can pivot the opening motors 14 to orient the blades 3.

!! It should be noted that the control device controls the operation of the orientation motors 14 only if the blades 3 occupy a fixed position different from the stowed position.

For the storage of the blades 3, the control device piiote the orientation motors 14 of the deployed scores to position the latter upright. When the deployed blades 3 occupy their upright position, the control device simultaneously drives the displacement motors 12 of these blades to bring them successively in their stored position detected by its position sensors 51.

The control device can thus selectively drive the displacement motors 12 and orientation 14 of the slats to cover all or part of the surface 2, with blades in erect, closed or intermediate position. î! It should be noted that the iames 3 are translated only in erect position.

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

Claims

1 - Installation for covering and discovering with orientable iames (3), a surface {2} delimited by a supporting structure (5), the installation comprising:

a series of steerable blades (3) extending parallel to one another at their longitudinal edges and equipped at each of their end edges with a pivot axis (4);

- An orientation system (I) of the blades (3) adapted to pivot at least some of the blades so that the longitudinal edges of the yames are contiguous or not contiguous to respectively close or open the corresponding surface;

- A displacement system (II) blades (3) between a row position in which the blades are abutted to each other and an extended position in which at least a portion of the blades are deployed facing the surface;

- Two tracks (8) for translational movement of the blades, arranged on the supporting structure (S) being arranged parallel to each other on two opposite sides of the surface;

- Each blade (3) is supported by its pivot axes (4) with a set of two carriages (iQi, 10 ₂ ) guided in translation along the guide tracks (8);

- The orientation system (I) comprises, for each pair of trolleys equipping a blade, at least one orientation motor (14) embedded in at least one of said trolleys and connected angularly with the pivot axis;

sensors (50) for position and displacement of the blades (3);

- and a control device connected to the sensors (50), to the displacement motors (12) and to the orientation motors (14), to move in translation at least a portion of the blades and to orient said translated blades,

characterized in that the displacement system (II) comprises, for each pair of carriages (10i, i <) fitted to a blade, two motors of displacement (12) embedded one in a first carriage (ùi) and the other in a second carriage (10 ₂ ) and each driving in rotation a pinion (17) cooperating with a rack (18) mounted on the supporting structure in a direction parallel to the guide path, each pinion (17) cooperating with a pivot axis (4) for driving in translation the pivot axis (4) of its blade (3),

2 ~ Installation according to claim 1, characterized in that the orientation system (Σ) comprises for each blade (3), an orientation motor (14) mounted on the second carriage (1Q ₂ ) equipping said blade.

3 - Installation according to claim 2 characterized in that the second carriages (10 ₂ ) provided with a displacement motor (12) and an orientation motor (14) on the one hand, and the first carriages (10i ) provided with a displacement motor (12) on the other hand are mounted alternately from one blade to the other, on each side of its surface to cover or to discover.

4 - Installation according to one of claims 1 to 3, characterized in that each first (10i) equipped with a displacement motor (12) has a main body (15) of support for the displacement motor, this main body being provided a rotation guiding system (31) for the pivot axis (4) of the blade, freely engaged in a housing (32) arranged in the blade, the pivot axis (4) being provided with the pinion (17) and rotated by the displacement motor (12).

5 - Installation according to one of claims 1 to 4, characterized in that each second carriage (10 ₂ ) equipped with a displacement motor (12) and an orientation motor (14) comprises a main body ( 15) for the displacement motor and the orientation motor, the main body (15) being provided with a guide system (41) for rotation of a tubular shaft (42) equipped with the pinion and rotated by the moving motor, the pivot axis (4) being mounted inside the tubular shaft (42) being driven into rotation by the orientation motor (14) and mounted to rotate with the blade,

6 - Installation according to claims 4 or 5, characterized in that each carriage (10i, 10 ₂ ) comprises a main body connected by a connecting pin (20) removable to a guide bearing (11) cooperating with a track of guiding (8),

7 - Installation according to one of claims 1 to 6, characterized in that each rack (18) is formed by a toothed belt attached to the carrier structure (5).

8 - Installation according to one of claims 1 to 7, characterized in that its position sensors (50) and displacement of the blades comprise contact sensors (51) mounted on the carriages of a guideway to be actuated by the carriage located upstream in the direction of exit of the blades or by the supporting structure for the carriage of the last blade in the direction of exit.

9 - Installation according to one of claims 1 to 8, characterized in that the sensors (50) of position and displacement of the Samples (3) comprise sensors for measuring the rotation of the displacement motors and the rotation of the motors as well as sensors for detecting the direction of orientation of the blades.

10 - Installation according to one of claims i to 9, characterized in that the control device comprises a calibration mode and several prerecorded modes of use each corresponding to a type of positioning of the blades »

11 - Installation according to one of claims 1 to 10, characterized in that the control device controls the operation of the displacement motors (12) and orientation (14) so that prior to the control in displacement of a blade, the control device controls the motor of orientation of said blade to place it in a vertical position if it does not occupy this vertical position.

12 - installation according to one of claims 1 to 11, characterized in that for a mode of use consisting of the output of a predetermined number The control device controls the operation of the displacement motors (12) of the blades to be deployed so that each time its first blade is advanced by one step, its blade located upstream is controlled movement, the displacement motors (12) of the blades being controlled until the strips occupy their output position.

13 - Installation according to claim 12, characterized in that the control device drives the displacement motors (12) so that the displacement pitch of the blades corresponds to the spacing between two consecutive consecutive blades horizontal position.

14 - Installation according to one of claims 1 to 13, characterized in that the control device controls the operation of the orientation motors (14) only if the blade occupies a fixed position different from the stored position.