EP2500508B1 - Closing or sun protection installation, and process for the implementation of such an installation - Google Patents

Description

The present invention relates to a closure or sun protection system. The invention also relates to a method for implementing such an installation. The field of the invention is that of blinds or roller shutters, intended to equip a building opening such as a door or a window arranged in a wall or a roof.

Conventionally, such an installation comprises a cloth apron or blades wound around a tree and which takes place between two scenes to hide the window. A manual or electric action allows to maneuver the descent or the rise of the deck. In the low position, it is known to block a final blade or load bar of this apron to prevent its lifting, tearing and / or recovery. Thus, the installation is protected in case of bad weather, wind squalls or attempted intrusion.

The installation may comprise a manual locking system of the apron, of the lock or bolt type, fixed on the final blade. The locking of such a system by a user is not systematic. If the lock is not in place when a thunderstorm or attempted intrusion occurs, the deck may rise around the shaft and / or be torn off the wings.

Alternatively, the installation may include an automatic locking system of the deck, which is implemented systematically with each complete descent of the deck in the down position. For example, a rigid lock may be interposed between the winding shaft and the first deck blade, thereby compressing the deck in the wings to prevent it from rising. Such a system is not suitable for blinds with flexible fabric, where the lack of rigidity of the fabric does not prevent the load bar to go up.

According to another example, the automatic system can operate on the principle of "two-way pitch". When the apron is lowered in the lower part, such a system causes a first rise. The apron is then blocked automatically by organs located in the lower part of the installation. Then, the deck must go down slightly to unlock and be able to climb freely during a second climb.

EP-A-0 305 081 and US-A-4,509,576 each describe a store-type installation, comprising an automatic system for locking the load bar at the bottom, in which a locking member cooperates with a guide path.

In EP-A-0 305 081 which describes an installation according to the preamble of claim 1 and a method according to the preamble of claim 9, the locking member is either a pivoting member provided with a finger and a return spring, or a deformable arm part housed in the guide path. This locking system is not entirely satisfactory, especially in terms of reliability. Due to the fatigue of the return spring or deformable arm, the effectiveness of the locking system decreases over time.

In US-A-4,509,576 , the locking member is a lever which cooperates with a groove in a vertical slide, to reach a locking labyrinth at the bottom. When the installation is inclined in shading position ("sunshade" in English), the locking member follows another groove in a second inclined slide, to a second locking labyrinth. This locking system is not entirely satisfactory, especially in terms of simplicity and versatility.

The object of the present invention is to provide an improved closure or sun protection system, comprising a multi-purpose locking system, to lock or unlock the load bar at the bottom automatically, reliably and effectively, when the apron is lowered or raised.

For this purpose, the subject of the invention is a closure or sun protection system, in particular of the store type, as defined in claim 1.

Thus, the invention allows a simple and effective locking and unlocking of the system when the bar is in the low position and the apron is unrolled and stretched, thanks to the cooperation of the rocker member with the locking path. The arrangement of this rocker member in the system avoids the use of a spring or a deformable member to force this member, on the one hand, to move between the different positions in the system path lock and on the other hand to keep in the locked position. Furthermore, the locking path is configured so that, whatever the speed of movement of the bar to the ascent and regardless of the position of the tilting plane in a certain range of adjustment, the rocker member leaves this path and thus releases the bar and the apron. In particular, the pendulum effect along the ramp makes it possible to disengage the rocker member regardless of the position of the tilting plane in this adjustment range. The efficiency of this pendulum effect is further improved in comparison with existing systems, where the rise of the bar is generally predominant compared to the pendulum effect. Thus, the installation according to the invention provides effective protection in case of bad weather or attempted intrusion, and in a sustainable manner.

Other advantageous characteristics of the installation according to the invention, taken separately or in combination, are defined in claims 2 to 8.

The subject of the invention is also a method for implementing a closure or sun protection system, in particular of the store type, as defined in claim 9.

Other advantageous features of the process according to the invention are defined in claim 10.

• la figure 1 est une vue en perspective d'une installation conforme à l'invention, équipée d'un tablier et d'une barre de charge en configuration basse déverrouillée ;
• la figure 2 est une représentation schématique de l'installation de la figure 1, montrant différentes étapes d'une phase de descente du tablier ;
• la figure 3 est une représentation schématique de l'installation des figures 1 et 2, montrant différentes étapes d'une phase de montée du tablier ;
• la figure 4 est une vue en perspective à plus grande échelle du détail IV à la figure 1, montrant un système de verrouillage équipant l'installation ;
• les figures 5, 6, 7 et 11 sont d'autres vues en perspective à différentes échelles du détail de la figure 4, montrant le système de verrouillage équipant l'installation dans différentes positions ;
• les figures 8 et 9 sont des vues de côté à une autre échelle selon les flèches VIII et IX respectivement aux figures 6 et 7 ;
• la figure 10 est une vue analogue à la figure 9, montrant partiellement le système de verrouillage ;
• la figure 12 est une vue analogue aux figures 8 et 9 pour un système de verrouillage équipant une installation conforme à un second mode de réalisation de l'invention ; et
• la figure 13 est une vue analogue à la figure 10 pour le système de verrouillage de la figure 12.

The invention will be better understood on reading the description which follows, given solely by way of nonlimiting example and with reference to the drawings in which:

• the figure 1 is a perspective view of an installation according to the invention, equipped with an apron and a load bar in unlocked low configuration;
• the figure 2 is a schematic representation of the installation of the figure 1 , showing different stages of a descent phase of the deck;
• the figure 3 is a schematic representation of the installation of figures 1 and 2 , showing different stages of a rising phase of the deck;
• the figure 4 is a perspective view on a larger scale of detail IV to the figure 1 , showing a locking system equipping the installation;
• the figures 5 , 6 , 7 and 11 are other views in perspective at different scales of the detail of the figure 4 , showing the locking system equipping the installation in different positions;
• the Figures 8 and 9 are side views to another scale according to arrows VIII and IX respectively at figures 6 and 7 ;
• the figure 10 is a view similar to the figure 9 , partially showing the locking system;
• the figure 12 is a view similar to Figures 8 and 9 for a locking system equipping an installation according to a second embodiment of the invention; and
• the figure 13 is a view similar to the figure 10 for the locking system the figure 12 .

On the Figures 1 to 11 is represented an installation 10, according to the invention, closure or sun protection, store-type.

In order to make it easier to locate the different parts of the installation 10 in the space, an inner side 11 facing the unrepresented building is defined, an outer side 12 facing away from the building, a left side 13, a right side 14, an upper side 15 and a lower side 16 of the installation 10.

As shown in figure 1 , the installation 10 comprises a slide 24 on each left 13 and right side 14. The slides 24 extend in a vertical orientation, parallel to a central axis X of deployment of the blind, from an upper end 25 to a lower end 26 Each slide 24 comprises a groove 27 which extends parallel to the axis X, facing the opposite slide 24.

A box 20 is disposed on the upper side 15 of the installation 10, at the end of the slides 24. The box 20 and the slides 24 thus form the rigid frame of the installation 10, intended to be fixed to a building, against and / or on the frame of an opening not shown. In the casing 20 are housed a shaft 22 and an electric motor 21 for driving this shaft 22 in rotation about an axis Y, in two opposite directions of rotation R1 or R2. The installation 10 is symmetrical with respect to a median plane Pm including the X axis, except the motor 21.

The installation 10 also comprises a blind apron 30 which winds and unrolls around the shaft 22, as a function of its rotation in the first direction R1 or the second direction R2. More specifically, a first end 32 of the deck 30 is integral with the shaft 22, while a second end 34 of the deck 30 is secured to a load bar 40 which is translated along the axis of deployment X between the scenes parallel 24, in two opposite translation directions D1 and D2.

As shown in figures 1 and 4 to 7 , the load bar 40 extends along an axis Y40 parallel to the pivot axis Y and has a rectangular section profile. The lateral ends of the bar 40, on each left side 13 and right 14, are shaped to slide in the grooves 27 provided for this purpose in the wings 24. The mass of the bar 40 facilitates its descent by gravity during the unwinding of the apron 30 and reduces the effect of wind squalls on this deck 30. In other words, the bar 40 is movable along the X axis between the ends 25 and 26 of the slides 24, selectively in the directions D1 and D2.

When the apron 30 is deployed between the slides 24, as shown in FIG. figure 1 this apron 30 extends between the grooves 27 in a deployment plane P30 which includes the axis X and is perpendicular to the median plane Pm. To avoid inconvenience due to inclement weather and intrusion attempts, the bar 40 is then locked in the lower position, on the lower side 16 of the installation 10.

For this purpose, the installation 10 is equipped with two locking systems 50 of the bar 40 in the low position. These systems 50 comprise fixed elements arranged at the respective lower ends 26 of the slides 24, as well as movable elements integral with the bar 40. The two systems 50 face each other in symmetry on either side of the median plane Pm.

More specifically, as shown in particular figures 4 and 5 each system 50 comprises a locking path 70 and a leaf spring 90 integrated in a housing 60 fixed to the slide 24, as well as a rocker member 80 hinged to a support piece 42 fixed to the rod 40.

The overall operation of the installation 10 is described below in connection with the Figures 2 and 3 , then the structure and operation of the locking systems 50 are described below in connection with the Figures 4 to 11 .

On the figure 2 are shown steps A to E down the apron 30 and the bar 40 fitted to the installation 10, when the shaft 22 rotates in the direction R1. Initially, the apron 30 is wound on the shaft 22 and the window-type opening associated with the installation 10 is exposed to light.

In step A, the apron 30 unrolls around the shaft 22 according to a movement DR1. The bar 40, initially located at the upper end 25 of the slides 24, cooperates with the grooves 27 of the slides 24 and translate between these slides 24 in the direction D1. In step B, the bar 40 reaches the lower side 16 of the installation 10. By then cooperating with the locking systems 50 at the lower end 26 of the slides 24, the bar 40 reaches a stop position PB1 . According to the principle of "two-way upward pitch", this stop position PB1 corresponds to the first descent of the bar 40 in the direction D1.

In step C, the apron 30 expands between its end 34 connected to the bar 40 immobilized in the PB1 position and its end 32 connected to the shaft 22 which always pivots in the direction R1. In step D, the apron 30 is stretched again, by winding at its end 32 around the shaft 22, according to a movement ER1. During these steps C and D, the deck 30 is no longer stretched in its deployment plan P30. The winding movement ER1 produces an inverse effect to the unwinding movement DR1, so that traction is exerted on the bar 40 in the direction D2.

In step E, the bar 40 is thus translated in the direction D2, over a short distance, until reaching a stop position PB2 cooperating with the locking system 50 fitted to each slide 24. According to the principle of "no in two directions on the rise ", this abutment position PB2 corresponds to the first rise of the bar 40 in the direction D2. In other words, the descent phase of the apron 30 and the bar 40 ends with a slight rise of the bar 40. At this stage, the rotation of the shaft 22 in the direction R1 stops. The apron 30 is then stretched, while the bar 40 is immobilized on the lower side 16 of the installation 10, in the PB2 position. The opening equipped with the installation 10 is then closed.

On the figure 3 are shown steps F to J winding of the apron 30 and rise of the bar 40 fitted to the installation 10, when the shaft 22 rotates in the direction R2.

In step F, the apron 30 unrolls around the shaft 22 according to a movement DR2 and the bar 40 leaves the abutment position PB2. The bar 40 is translated by gravity between the slides 24 in the direction D1, for a short distance. In other words, the raising phase of the apron 30 and the bar 40 begins with a slight descent of this bar 40.

In step G, the bar 40 reaches a stop position PB3 cooperating with the locking system 50 fitted to each slide 24. According to the principle of "two-way pitch", this stop position PB3 corresponds to the second descent of the bar 40 in the direction D1. The apron 30 expands between its end 34 connected to the bar 40 immobilized in position PB3 and its end 32 connected to the shaft 22 which always pivots in the direction R2. In step H, the apron 30 is stretched again, by winding at its end 32 around the shaft 22, according to a movement ER2. During these steps G and H, the deck 30 is no longer stretched in its deployment plan P30. The winding movement ER2 produces an inverse effect to the unwinding movement DR2, so that a pull is exerted on the bar 40 in the direction D2.

In step 1, the bar 40 cooperating with each system 50 reaches a release position PL4. The bar 40 is freely translated between the slides 24 in the direction D2, while the apron 30 is wound on the shaft 22 according to the movement ER2. According to the principle of "two-way pitch up", this release position PL4 corresponds to the second rise of the bar 40 in the direction D2.

In step J, the bar 40 reaches a high stop position PB5 at the upper end of the wings 24. At this point, rotation of the shaft 22 in the R2 direction stops. The apron 30 is wound around the shaft 22, while the bar 40 is immobilized on the upper side 15 of the installation 10, in the PB5 position. The opening equipped with the installation 10 is exposed to light.

As shown in figures 1 and 4 , a support piece 42 is arranged on the outer side 12 of each end of the bar 40, on the left 13 and right sides 14. This piece 42 has a convex outer surface 43 and two side faces 45 and 46. This piece 42 is in hollow portion defining an inner housing 44 adapted to form a pivot connection. This housing 44 opens out at the face 45 which is oriented towards the slide 24 and not opening at the face 46 which is oriented on the opposite side. This piece 42 also comprises oblong holes 48 provided for receiving screws 49, thus making it possible to adjust the position of the piece 42 on the bar 40, parallel to the axis Y40 and to immobilize the piece 42 on the bar 40.

As shown in Figures 4 to 11 , the housing 60 delimits the locking path 70. This path 70 is of the type called "snail" or "heart". The housing 60 comprises a plate 61, walls 62 and 63, an opening 64, a recess 65, a pin 66, a projection 67, inlet and outlet conduits 71, an inner stop 72, a partition wall 74, a ramp 77 and a face 78.

The fixing plate 61 is substantially flat, pressed against the lower end 26 of the slide 24, on the outer side 12. This plate 61 is traversed by fixing screws 69, thus enabling the housing 60 to be mounted against the slide 24. The side wall 62 extends at right angles from the flat outer face 78 of the plate 61, parallel to the median plane Pm. The outer casing wall 63 extends from the side wall 62 towards the median plane Pm. The opening 64 is formed in the housing 60 of the upper side 15, between the plate 61, the wall 62 and the wall 63. The inlet duct 71 extends inside the housing 60 from the opening 64, between the walls 62 and 63 and a leaf spring 90. At its end opposite the opening 64, the pipe 71 opens into a zone of re-entrant angle 73 delimited between the wall 63 and the stop 72.

A recess 65 is formed in the housing 60 of the lower side 16, separating the wall 62, the stop 72 and the ramp 77. This recess 65 provides access to the lower fixing screw 69 of the housing 60, which thus has dimensions compact, so that in the locking position, the load bar 40 is not immobilized too high relative to the threshold of support of the window.

The leaf spring 90 is hooked by one of its ends on a pin 66 belonging to the housing 60. This pin 66 for fixing the leaf spring 90 extends from the wall 62 inside the housing 60, in the direction of from the median plane Pm. A protrusion 67, which has a cylindrical outer shape, is formed on the face 78 of the plate 61 at the opening 64 to serve as a support for the spring blade 90. At this stage, it is noted that the pin 66 has a cylindrical shape of non-circular base, that is to say that this shape is elongated parallel to the axis Y40 and stretched diametrically in the direction of the projection 67, in the extension of the wall 74.

The leaf spring 90 comprises a ramp 92 and an end portion 98 for attachment to the pin 66. The ramp 92 has a planar shape, with an upper face 94 and a lower face 96. In practice, when an effort is exerted on the upper face 94 in the direction D1, the ramp 92 rests on the projection 67 and the partition wall 74 at its lower face 96, whereas when a force is exerted on the lower face 96 in the direction D2, the ramp 92 is detached from the projection 67. The pin 66 is partly surrounded by the portion 98, so that they are integral with each other. Except the leaf spring 90, the system 50 does not include any other spring. In particular, the spring 90 does not actively participate in the locking of the bar 40 in another the other of its positions.

As shown in particular to figures 4 and 8 the inner abutment 72 extends from the wall 63 to the inside of the housing 60. The abutment 72 has a first upper surface 72a formed at right angles to the wall 63, a second upper surface 72b inclined at the upper side 15 relative to at this surface 72a, as well as a lower surface 72d oriented on the lower side 16 and connected to the surface 72b by an end portion 72c.

As shown in particular to figures 5 and 9 , the partition wall 74 extends in the extension of the pin 66, in a concave profile oriented lower side 16, and ends with a spout 74a. The concavity of the wall 74 defines a housing 75.

As shown in particular to figures 6 , 9 and 10 , the ramp 77 extends from the lower surface 72d of the stop 72 to the face 78 of the plate 61, in a concave profile oriented on the upper side 15. This ramp 77 substantially describes a quarter circle centered on a point fictitious P77, from a point P77A located on the side of the stop 72 to a point P77C located on the side of the face 78. Note that this point P77C of junction between the ramp 77 and the face 78 is closer to the 64 and the Y40 axis that the angle zone 73. The ramp 77 is longer, at the edge of the path 70, than the face 78. The outlet duct 79 extends in the direction D2, from the point P77C towards the opening 64, between the face 78 and the wall 74.

Considering a direction perpendicular to the face 78, the ramp 77 extends along a width L77, while the locking path extends along a width L70. The width L77 is substantially equal to 90% of the width L70. Alternatively, the width L77 is greater than 60% of the width L70, preferably greater than 80%, more preferably between 85% and 95% of the width L70.

A lower housing 76 is delimited between the stop 72 and the ramp 77. This housing 76 is further away, on the one hand, from the plate 61 than the housing 75, in a direction perpendicular to the deployment plane P30 of the apron 30 and, on the other hand, of the opening 64 that the zone 73 and the housing 75, in a direction parallel to the axis X. The ramp 77 is inclined along the housing 60, going up towards the upper side 15, since housing 76 to face 78.

As shown in particular in figure 4 , the rocker member 80 is hinged relative to the support piece 42. The member 80 is disposed outside the grooves 27 formed in the slides 24. The member 80 is in one piece and comprises a cylindrical lever 82 connecting, on the one hand, a cylindrical hinge pin 84 rotatably mounted in the housing 44 of the support piece 42 along a tilting axis Y84 and, on the other hand, a cylindrical locking finger 86 which extends along an axis Y86 in the direction of the locking path 70. The Y84 and Y86 axes are parallel to each other and to the axis Y40. The member 80 is preferably made of arched wire, that is to say a straight wire corresponding to the lever 82 which is folded to form the fingers 84 and 86 at its ends. Alternatively, the member 80 may be made by molding or any other method suitable for the present application. In particular, the member 80 can be considered as being dimensionally stable under the operating conditions of the system 50.

In practice, the member 80 is freely articulated relative to the bar 40, mobile in free rotation by gravity about the hinge axis Y84 along at least a portion of the locking path 70. For its part, the locking pin 86 of the rocker member 80 is intended to cooperate with the locking path 70 delimited in the casing 60. The adjustment of the positioning of the piece 42 on the bar 40 makes it possible to ensure that the axes Y84 and Y86 are correctly oriented and that the finger 86 cooperates optimally with the different parts of the path 70.

In addition, G82 is the center of gravity of the rocker member 80. In practice, the finger 84 housed in the support 42 is slightly longer than the finger 86 housed in the housing 60. For simplicity, nevertheless, assimilates the center of gravity of the member 80 at the center of gravity of the lever 82. Considering the finger 84 articulated in the housing 44 and pivoting about the axis Y84, a vertical tilting plane P80 is defined including Y84 axis. This plane P80 is parallel to the plane P30 including the X axis and is perpendicular to the plane Pm.

Thus, the rocker member 80 is movable in a pendular rotational movement along at least a portion of the path 70, with a position of equilibrium corresponding to the plane P80. This pendulum effect, or pendulum effect, is particularly advantageous in the context of the present invention, as detailed below.

In practice, the housing 60 and the path 70 delimit the three abutment positions PB1, PB2 and PB3, or locking positions, of the bar 40, each corresponding to a particular blocking position of the locking pin 86 along the path 70. Thus, the position PB1 corresponds to the locking of the finger 86 in the angle zone 73, the position PB2 corresponds to the locking of the finger 86 in the housing 75, while the position PB3 corresponds to the locking of the finger 86 in the housing 76 The zone 73 and the housings 75 and 76 each have a concave shape adapted to receive the finger 86. The path 70 also defines the release position PL4, when the finger 86 is at the entrance of the duct 79 delimited to the inside the case 60.

In step A of the descent phase of the deck 30, the locking system 50 is not solicited. The bar 40 is translated in the direction D1 to the lower part of the installation 10, near the housings 60.

In step B, the finger 86 of each member 80 secured to the bar 40 enters the housing 60 corresponding through the opening 64, so as to follow the inlet conduit 71 of the path 70 by sliding against the upper face 94 of the spring 90, as shown in FIG. figure 5 . On leaving the duct 71, the finger 86 comes to bear against the surface 72a of the stop 72. At this stage, the finger 86 is housed in the angle zone 73 and the bar 40 is locked in the position PB1.

In steps C and D, the finger 86 remains housed in the corner area 73 while the bar 40 is locked in the position PB1. The apron 30 expands between the slides 24, then stretches along the winding ER1.

In step E, when the bar 40 is pulled in the direction D2 by this apron 30, the finger 86 leaves the angle zone 73 following a first pendular rotational movement R81, which brings it closer to the tilting plane P80. At this stage, the finger 86 abuts inside the housing 75, against the wall 74. The movement of the member 80, simultaneously in translation in the direction D2 and in rotational rotation R81, is then stopped. The member 80 is inclined on the side C1 of the tilting plane P80. The apron 30 is stretched and the bar 40 is immobilized in position PB2.

In step F of the rise phase of the apron 30, the finger 86 leaves the housing 75 and tends to approach the plane P80 and the ramp 77. In practice, the finger 86 slides on the ramp 77 and departs of the plane P80, to come to be housed in the hollow of the housing 76. The system 50 is then in the configuration of the figure 6 . At this stage, the bar 40 is immobilized in position PB3 and the apron 30 continues to unfold. The member 80 is inclined on the side 1 of the tilting plane P80, with a greater inclination than when the finger 86 is positioned in the housing 75.

In steps G and H, the finger 86 remains resting in the housing 76 while the bar 40 is locked in the position PB3. The apron 30 expands between the slides 24, then stretches along the winding ER2.

In step I, when the bar 40 is pulled in the direction D2 by this apron 30, the finger 86 leaves the housing 76 following a second pendular rotation R82, which brings it closer to the tilting plane P80. In this case, the rotation R82 is not stopped before the finger passes through the plane P80 and the pendulum effect is complete. As shown in Figures 8 and 9 this rotation R82 transfers the center of gravity G82 of the member 80 from a first side C1 of the tilting plane P80 to a second side C2 of the tilting plane P80.

The finger 86 tilts along the ramp 77, either by being in contact or with a small clearance between them. The trajectory of this tilting depends, on the one hand, on the speed of ascent of the bar 40 and therefore on the speed of rotation of the motor 21 and, on the other hand, of the mass of the member 80 and therefore of its inertia. Then the finger 86 passes under the spout 74a and abuts very slightly against the ramp 77 and / or the face 78, near the point P77C, at the inlet of the duct 79. This inlet duct 79 is close to the plane P80, as a result, the rebound or pendulum effect is reduced and the finger 86 can go up in the outlet duct 79, which is opening at the opening 64. The bar 40 is then in the PL4 release position and is translated freely in the direction D2. The configuration of the rounded ramp 77 is particularly advantageous in the context of the invention, in connection with the pendulum effect.

As shown in figure 10 the plane P80 intersects the ramp 77 at a point P77B, which is closer to the point P77C than the point P77A. Ramp 77 has a portion 771 between points P77A and P77B, and a portion 772 between points P77B and P77C. Since the slides 24 are vertical, 1, the rotational pendulum movement R83 is substantially horizontal along the portion 771, while this rotational pendulum movement R83 is essentially vertical along the portion 772. In other words, The pendulum effect is more marked along the portion 771 and, when the rotation R83 continues along the portion 772, the rise of the bar 40 causes the rise of the finger 86 along the conduit 79, in the direction D2.

Unlike the existing systems where the raising of the bar is generally predominant with respect to the pendulum effect, the configuration of the locking system 50 ensures that the pendulum effect is predominant during the transition from the blocking position PB3 to the PL4 release position. In particular, the fact that the width L77 is greater than 60% and even close to 90% of the width L70, in other words the fact that the ramp 77 extends over most of the width of the path 70, improves the efficiency of this pendulum effect.

Moreover, the position of the axis Y84 and thus of the plane P80 may vary according to the configuration of the installation 10, for example as a function of the width of the load bar 40. In this case, the point P77B is moved along the boom 77. In this regard, it is estimated that when the point P77B is closer to the point P77C than to the point P77A, the rotational swinging movement R83 of the member 80 occurs and the locking system 50 operates. effectively.

Thus, unlike many existing systems, the system 50 according to the invention allows a positioning tolerance of the plane P80 relative to the path 70, in operation and in particular in the assembly. In other words, the invention allows a positioning tolerance of the housing 60 with respect to the bar 40 and the support 42, in particular when mounting the installation 10. The adjustment tolerance range of the plane P80 is of the order of 25% of the width L70 of the path 70, considered in a direction perpendicular to the plate 61 and therefore to the plane P30, preferably between 20% and 30%.

Then, as shown in figure 11 when the finger 86 comes into contact with the face 96 of the leaf spring 90 at the projection 67, the ramp 92 of the spring 90 is lifted in a deformed manner F90, thereby allowing the finger 86 to leave the path 70 formed in the housing 60 through the opening 64. Note 90 'the deformed spring, shown in dotted line on the figure 11 . Then, the ramp 92 returns to its initial position, where the spring 90 is not deformed. As the spring 90 is not directly related to the movement of the finger 86 between the different housings 73, 75 and 76 defined on the path 70, its wear is not critical for the operation of the installation 10, unlike the locking EP-A-0 305 081 .

On the Figures 12 and 13 is partially shown a second embodiment of a locking system 150, intended to equip an installation 10 according to the invention.

Some constituent elements of the system 150 are identical to the constituent elements of the system 50 of the first embodiment, described above, and bear the same references. This is the slide 24, the bar 40, the support piece 42, the pin 66, the stop 72, the angle zone 73, the widths L70 and L77, the spring 90, as well as the member 80 provided with an articulation finger 84 of axis Y84 and a locking pin 86 of axis Y86.

Other elements have a similar operation, but a different structure, in comparison with the first embodiment and have the same references increased by 100. This is the housing 160, the path 170, the wall 174 which is provided of a nozzle 174a and delimits a concave housing 175, housing 176 delimited between the stop 72 and the ramp 177, parts 871 and 872 of this ramp 177, points P177A, P177B and P177C, as well as the duct 179.

In practice, the partition wall 174 is wider than the wall 74 of the first embodiment. The path 170 is thus well delimited, just as the housing 175 and 176 are well defined in this path 170.

The ramp 177 has a rounded concave shape, shaped distorted quarter circle, without sharp corners. The inclination of the ramp 177 is more progressive than that of the ramp 77. The portion 871 forms a bowl whose concavity is turned from the side. 15. The portion 872 is more inclined towards the plane P80 and the upper side 15 than the portion 871.

In step 1, the finger 86 follows a pendulum rotation movement R83 along the ramp 177. In order to ensure that the finger 86 passes under the spout 174a and follows the duct 179, the raising of the finger 86 and the bar 40 in the direction D2 is slower than in the first embodiment.

Because of the shape of the ramps 77 and 177, the system 50 allows a faster operation of the installation 10 during the ascent phase of the deck 30, while the system 150 is better suited to a 10 manual control installation. Indeed, in the case of a manual installation, the rise of the apron 30 and the bar 40 is slower, so that the pendulum effect is slightly less pronounced. With the system 150, the positioning tolerance of the load bar 40 and the plane P80 is slightly less than the tolerance provided by the system 50.

Moreover, it is noted that the installation 10 and the locking systems 50 or 150 involve a particular operating kinematics, in order to operate automatically and efficiently.

Preferably, to create the "pitch two-way mounted" in the lower part, the motor 21 of the installation 10 is configured to automatically recognize the blocking positions PB1, PB2, PB3 and PB5 of the bar 40 by detection of the sur- torque generated by the blocking of this load bar 40. In addition, the length of the fabric of the apron 30 is calculated to allow the shaft 22 to wind and unwind this fabric following the movements DR1, ER1, DR2 and ER2. Alternatively, the motor 21 is programmed to perform this back and forth alternating the direction of descent and climb, without the apron must be successively wound and unrolled following the movements DR1, ER1, DR2 and ER2. This particular solution is suitable for rolling shutter slats that can not be rolled upside down.

In variant not shown, the installation 10 does not include a motor 21 and is then controlled by a manual control device, including the winch type. In this case, the operator rotates the shaft 22 with the winch, the bar 40 passing successively through the different positions PB1, PB2 and PB3.

According to another variant not shown, the installation 10 may be provided with a single locking system 50 or 150. The bar 40 then comprises a single support piece 42 in which is articulated a rocker member 80. In this case, the 10 is symmetrical with respect to the median plane Pm, except the motor 21 and the locking system 50 or 150.

According to another variant not shown, some elements of the locking system or 50 or 150 may have a different configuration, suitable for the present application. For example, the housing 60 or 160 may be shaped differently, but has a path 70 or 170 defining three housings corresponding to the three locking positions PB1, PB2 and PB3 of the bar 40.

According to a particular variant not shown, the housing 60 or 160 is fixed on the support of the installation 10, such as a wall or an opening frame.

According to a particular variant not shown, the housing 60 or 160 is integrated directly into the slide 24, at its lower end 26. In this case, the slide 24 and the housing 60 or 160 can be molded in one piece. On the other hand, in the case where the installation 10 comprises one or more guide systems of the apron fabric 30 by means of cables stretched along the slides 24, the housing 60 or 160 can also be integrated in the lower cable support. .

According to another variant not shown, the support piece 42, the housing 60 or 160 and the member 80 are located on the inner side 11 of the installation 10.

According to another variant not shown, the installation 10 is not arranged vertically, but is slightly inclined. In this case, the configuration of the different parts of the locking systems 50 is adapted accordingly. In particular, it is noted that the cooperation of the path 70 and the rocker member 80, as well as the layout of the tilting plane P80, depend on the positioning of the installation 10.

According to another variant not shown, the apron 30 may consist of shutter blades and, on each left side 13 and right 14 of the deck, a chain consisting of several links that are translatable along the axis X in the grooves 27 slides 24, adapted for this purpose.

In the context of the invention, the configuration of the locking system allows a large adjustment tolerance of the positioning of the member relative to the locking housing. Even if the axis of the member and therefore the tilting plane are offset relative to the slide and / or the load bar, the locking system is adapted so that the locking finger follows the locking path, passing by the different locking positions, which is not usually the case for existing locking systems. In other words, the plane can be moved parallel to the slide without preventing the operation of the system. In this case, the speed of movement of the rocker member, its mass, its inertia and its swing relative to the axis of articulation is adapted.

Whatever the embodiment, the locking system of the present invention can be adapted to different closure or sun protection systems, such as soft fabric blinds, venetian blinds and roller blinds.

Claims (10)

1. Closing or solar protection installation (10), in particular an awning-type installation, comprising:

   • slides (24) that extend parallel to an opening axis (X),

   • a shaft (22) arranged at an end (25) of the slides (24) and mounted to be rotatable around a pivot axis (Y) perpendicular to the opening axis (X), wherein this shaft (22) pivots selectively in a first direction (R1) or in a second direction (R2) opposed to the first direction of rotation,

   • a shutter (30) comprising a first end (32) integral to the shaft (22) and able to be wound onto this shaft (22) and a second end (34) fitted with a bar (40) capable of translational motion along the opening axis (X) cooperating with the slides (24) selectively in a first direction (D1) or in a second direction (D2) opposed to the first direction of translational motion, and

   • a system (50: 150) for locking the bar (40) at one or at each end (26) of the slides (24) opposite the shaft (22), wherein each system (50; 150) includes:

   o a locking path (70; 170) delimiting at least one locking position (PB1, PB2, PB3) of the bar (40) and having a given width (L70) in a direction perpendicular to the opening axis (X) and the pivot axis (Y), and

   o a tilting member (80) freely articulated in relation to the bar (40) around a hinge axis (Y84), with a tilting plane (P80) of the tilting member (80) that is parallel to the opening axis (X) and includes this hinge axis (Y84),
   where each tilting member (80) is movable in an oscillating rotational movement (R82; R83) around its hinge axis (Y84) along a portion of the locking path (70; 170), which forms a rounded concave ramp (77; 177), characterised in that said portion of the locking path extends on either side of the tilting plane (P80) over at least 60% of the width (L70) of the locking path (70; 170).
2. Installation according to claim 1, characterised in that each tilting plane (P80) has an adjustment tolerance range dependent on the relative position of the locking path (70; 170) and the tilting member (80), wherein the tilting member (80) is movable following the oscillating rotational movement (R82; R83) irrespective of the position of the tilting plane (P80) in this range, wherein this range amounts to between 20% and 30% of the width (L70) of the locking path.
3. Installation according to one of the preceding claims, characterised in that the oscillating rotational movement (R82; R83) moves the centre of gravity (G82) of the tilting member (80) from a first side (C1) of the tilting plane (P80) to a second side (C2) of the tilting plane (P80).
4. Installation according to one of the preceding claims, characterised in that each tilting member (80) comprises an elongated lever (82) joining, on one side, a hinge element (84) that pivots in relation to the bar (40) around the hinge axis (Y84) and, on the other side, a cylindrical locking finger (86), which extends parallel to the hinge axis (Y84) and cooperates with the locking path (70; 170).
5. Installation according to claim 4, characterised in that the tilting member or members (80) is/are arranged outside the slides (24) and, if need be, the cylindrical locking finger is arranged outside the slides (24).
6. Installation according to one of the preceding claims, characterised in that the ramp (77) extends substantially along a quadrant over at least 80% of the width (L70) of the locking path (70; 170).
7. Installation according to one of the preceding claims, characterised in that when the bar (40) rises in the second direction (D2) the ramp (77; 177) delimits a portion of the locking path (70; 170) extending, on one side, between a slot (76) corresponding to a locking position (PB3) of the bar (40) and, on the other side, a channel (79; 179) for release of the tilting member (80) out of the locking path (70; 170) corresponding to a release position (PL4) of the bar (40) exiting the locking path (70; 170).
8. Installation according to one of the preceding claims, characterised in that each locking system (50; 150) comprises a leaf spring (90), which delimits a portion (71) of the locking path (70; 170) when the bar (40) descends in the first direction (D1) and which is pushed back by the tilting member (80) when the bar (40) rises in the second direction (D2).
9. Method for utilising a closing or solar protection installation (10), in particular an awning-type installation, comprising:

   • slides (24) that extend parallel to an opening axis (X),

   • a shaft (22) arranged at an end (25) of the slides (24) and mounted to be rotatable around a pivot axis (Y) perpendicular to the opening axis (X), wherein this shaft (22) pivots selectively in a first direction (R1) or in a second direction (R2) opposed to the first direction of rotation,

   • a shutter (30) comprising a first end (32) integral to the shaft (22) and able to be wound onto this shaft (22) and a second end (34) fitted with a bar (40) capable of translational motion along the opening axis (X) cooperating with the slides (24) selectively in a first direction (D1) or in a second direction (D2) opposed to the first direction of translational motion, and

   • at least one system (50: 150) for locking the bar (40) at one or at each end (26) of the slides (24) opposite the shaft (22), wherein each system (50; 150) includes:

   o a locking path (70; 170) delimiting at least one blocking position (PB 1, PB2, PB3) of the bar (40) and having a given width (L70) in a direction perpendicular to the opening axis (X) and the pivot axis (Y), and

   o a tilting member (80) freely articulated in relation to the bar (40) around a hinge axis (Y84), with a tilting plane (P80) of the tilting member (80) that is parallel to the opening axis (X) and includes this hinge axis (Y84),
   wherein the method comprises at least one step, in which each tilting member (80) pivots in an oscillating rotational movement (R82; R83) around its hinge axis (Y84) along a portion of the locking path (70; 170), which forms a rounded concave ramp (77; 177), said method characterised in that said portion of the locking path extends on either side of the tilting plane (P80) over at least 60% of the width (L70) of the locking path (70; 170).
10. Method according to the preceding claim, characterised in that a descending phase (Figure 2) of the bar (40) comprises at least the steps consisting of:

    • in a first stage (A, B) unwinding (DR1) the shutter (30) in the first direction of rotation (R1) while the bar (40) slides in the first direction of translational motion (D1) until the tilting member (80) returns to a first locking slot (73) delimited in the locking path (70; 170) and

    • in a second stage (C, D, E) winding (ER1) the shutter (30) in the first direction of rotation (R1) while the bar (40) slides in the second direction of translational motion (D2) until the tilting member (80) returns to a second locking slot (75; 175) delimited in the locking path (70; 170), wherein this tilting member (80) follows an interrupted first oscillating rotational movement (R81) in the locking slot (75; 175);
    and in that a rising phase (Figure 3) of the bar (40) comprises at least the steps consisting of:

    • in a first stage (F, G, H) unwinding (DR2) the shutter (30) in the second direction of rotation (R2) while the bar (40) slides in the first direction of translational motion (D1) and the tilting member (80) leaves a second locking slot (75; 175) delimited in the locking path (70; 170) to return to a third locking slot (76; 176) delimited in the locking path (70; 170) following the ramp (77; 177) over at least a portion of the locking path (70; 170) and

    • in a second stage (I, J) winding (ER2) the shutter (30) in the second direction of rotation (R2) while the bar (40) slides in the second direction of translational motion (D2) and the tilting member (80) follows a second oscillating rotational movement (R82; R83) along the ramp (77; 177) from the third locking slot (76; 176) to an outlet channel (79; 179) of the locking path (70; 170).

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