Device for operating a door and door system comprising such a device

Abstract

The invention relates to a device for operating a door which comprises at least one pair (1, 2) of leaves (11, 12, 21, 22) pivotably connected to each other about a vertical axis, each pair (1, 2) of leaves being movable between an open position, in which the two leaves are folded one on top of the other and are oriented in a plane substantially perpendicular to the plane of an opening (B), and a closed position, in which the leaves are aligned with each other and in the plane of the opening (B). The operating device (4, 4') comprises a flexible link (42, 42') mounted in a loop and connected to the second leaf of one of the pairs of leaves in order to move it in a guide rail (3), the operating device (4, 4') further comprising an arm (58, 58') provided to control the shifting of the leaves (11, 12, 21, 22) relative to the plane of the opening (B) from the closed position.

Description

[0001] Door operating device and door system including such a device.

[0002] technical field

[0003] The invention relates to a door operating device comprising at least one pair of leaves hinged together and pivoting about vertical axes. It also relates to a door system comprising such an operating device.

[0004] Previous technique

[0005] Motorized door systems are known that have two leaves hinged together along a vertical axis, with the first leaf pivoting on a vertical axis along the edge of an opening. The end of the second leaf is guided in a track extending horizontally within the plane of the opening. The guidance can be performed simultaneously at the top and bottom of the second leaf.

[0006] One solution for motorizing this type of door is to attach a rotary actuator to one of the leaves, with an arm acting on the second leaf either by support or via a second arm. Document FR 2 820 164 Al shows an example of this type of implementation. This type of motorization is functional. However, the rotary actuator is a device that protrudes from the surface of the first leaf. In a configuration where the leaves are installed to open into a narrow corridor, the protruding actuator limits the possibility of the leaf being stored flush against the corridor wall.

[0007] Door systems with at least two pairs of leaves, thus presenting an accordion-like arrangement, are also known. To implement the solution described in document FR 2 820 164 Al, it is necessary to use a rotary actuator for each pair, which entails significant costs.

[0008] We also know of door systems where the first leaf is mounted to pivot on a rotary motor for direct drive. Often, the rotary motor is housed in a cavity in the floor, requiring civil engineering work. Furthermore, in the case of a system with a pair of leaves, it is necessary to limit the movement of the second leaf to prevent it from jamming in the open position, and to use a powerful rotary motor to move it out of this position.

[0009] EP 2 078 813 describes a device for operating a door with a pair of leaves hinged around a vertical axis.

[0010] Description of the invention

[0011] The invention aims to provide a compact operating device requiring a reasonably sized motorization system. It also aims to provide a door system comprising at least one pair of leaves.

[0012] With these objectives in mind, the invention relates to an operating device for a door comprising at least one pair of leaves hinged together along a vertical axis, the first of the two leaves being mounted pivoting around a vertical axis on a building along the edge of an opening, each pair of leaves being movable between an open position, in which the two leaves are folded one on the other and are oriented in a plane substantially perpendicular to the plane of the opening, and a closed position, in which the leaves are aligned with each other and in the plane of the opening, the operating device comprising a first horizontally placed slide provided to guide one end of the second leaf, the operating device being characterized in that it comprises a flexible link mounted in a loop, motorization means for driving the link in scrolling,The link comprises a first strand extending horizontally in the plane of the bay, the link being intended to be attached to the second leaf of one of the pairs of leaves in order to drive it into the first track, the operating device further comprising an arm intended to control the offset of the leaves relative to the plane of the bay from the closed position, the arm being operated by transformation means to convert the movement of the link into movement of the arm. The transformation means are designed to act differentially between the movement of the driven leaf and the movement of the arm.

[0013] By operating the two-leaf system, the effort required to move the leaves is minimized. The arm makes it easy to offset the leaves, since in the closed position, this movement is the simplest and requires the least effort. Conversely, from the open position, the movement of the leaf within the track requires less effort. The transformation mechanisms distribute the force supplied by the motor between the two points of action, so that the point requiring the least effort achieves the system's movement. This principle is applicable to a system with two or more leaves, regardless of whether the number of leaves is even or odd, as will be explained later.

[0014] According to one design, the transformation means comprise a carriage mounted to slide within a second guide oriented parallel to and at a distance from the first guide. The arm is pivotally mounted on the carriage, and in the closed position, the arm is substantially perpendicular to the first guide. When the arm is in the closed position, because it is oriented perpendicular to the direction of the guides, a large range of movement of the carriage results in a small range of movement of the leaves controlled by the arm. This provides a gear ratio, making it possible to generate significant force with minimal effort to achieve the movement of the carriage. Furthermore, the control movement is irreversible.Indeed, a force applied to the leaves against the arm cannot cause the movement of the carriage since the force transmitted by the arm is perpendicular to the direction of the second slide.

[0015] According to a design feature, the arm in the open position is pivoted through an angle between 120° and 170° relative to the closed position. Thus, in the open position, the arm is oriented obliquely to the direction of the second slide. This ensures that the carriage's movement from this position develops a component in the direction of the second slide and prevents any risk of jamming.

[0016] The transformation means are designed to act differentially between the movement of the driven door leaf and the movement of the arm. By differential action, we mean that the arm's movement is not directly linked to the door leaf's movement, but that the force exerted by the linkage can be distributed between the two components thanks to the transformation means. The forces exerted via the linkage are thus limited by the component with the least resistance. Furthermore, it is not necessary to control the components separately; a single control is sufficient to achieve the movements of the door system.

[0017] According to a design, the carriage comprises a first and a second carriage return element, the transformation means comprising a first and second fixed return element, the first fixed return element guiding the link to the first carriage return element where the link makes a U-turn to return to the second fixed return element, the transformation means comprising a third and fourth fixed return element, the third fixed return element guiding the link to the second carriage return element where the link makes a U-turn to return to the fourth fixed return element, the operating device further comprising two main return elements to guide the link from the second and fourth fixed elements respectively to the first strand. All the return elements together determine the path of the link.The carriage receives traction via two carriage return mechanisms that act in two directions parallel to, but opposite to, the direction of the second slide. Depending on whether the link is tighter on one side or the other, the carriage is pulled to that side or the other. However, the carriage's movement is synchronized and dictated by the position of the door leaves via the arm, according to the degree of opening. The tension imbalance on the carriage arises from the varying resistance of the door leaves to its movement. This process transforms the link's movement into the movement of the entire assembly for opening or closing the doors.

[0018] According to the improvement, the link includes a strand connecting the first and third fixed linking elements. This allows for the most compact arrangement of the device.

[0019] According to one design, the drive means operate the first or third fixed drive element. This arrangement also allows for a highly compact configuration, using the fixed drive element to transmit the winding motion to the link via the drive means, thus the drive element performs two functions. Alternatively, a drive pulley with rollers could be used to guide the winding of the link around the drive pulley.

[0020] In one design, a sliding guide is mounted within the first track, while the second door leaf is designed to pivot on the guide. This separates the function of linear guidance within the track from that of pivoting the door leaf. Alternatively, a roller can be used that is guided within the first track, combining the functions of linear guidance within the track and pivoting guidance of the door leaf.

[0021] The invention also relates to a door system comprising at least one pair of leaves hinged together along a vertical axis, the first of the two leaves being intended to be mounted pivoting around a vertical axis on a building along an edge of a bay, one end of the second leaf being guided in a first slide placed horizontally, each pair of leaves being movable between an open position, in which the two leaves are folded one on the other and are oriented in a plane substantially perpendicular to the plane of the bay, and a closed position, in which the leaves are in alignment with each other and in the plane of the bay, the door system being characterized in that it comprises an operating device as described above.

[0022] According to a second embodiment, the door system comprises at least two pairs of leaves, with the first leaf of the second pair hinged to the second leaf of the first pair, and the second leaf of the second pair hinged to the first leaf of the second pair. All leaves are in the same closing plane when closed. The operating mechanism includes a compass system to synchronize the movement of the two pairs of leaves. Using two pairs of leaves for the same opening allows for a wider opening or reduces the depth of the leaves when they are open. The compass system is a combination of levers that transmits the movement from one pair of leaves to the other.

[0023] According to a third embodiment, the door system comprises at least one pair of leaves and a third leaf hinged to the second leaf of the pair, all leaves being in the same closing plane in the closed position, the operating device comprising a compass system to synchronize the movement of all the leaves. The door system is also suitable for an odd number of leaves.

[0024] According to one design, the compass system comprises at least one lever, pivotally mounted on the end of the arm and also at its midpoint on the second leaf of the first pair; a second lever, pivotally mounted on the end of the arm and also at its midpoint on the first leaf of the second pair or on the third leaf; and a connecting rod pivotally mounted on one end of one of the levers opposite the arm and also on the leaf of the same pair adjacent to the one on which the lever is pivotally mounted. With this arrangement, the arm acts directly on the compass system to cause the leaves to move out of the plane of the opening.

[0025] According to an improvement, the compass system further includes a second connecting rod mounted pivotally on one end of the other lever opposite the arm, and on the other end of the leaf of the same pair adjacent to the one on which the lever is pivotally mounted. The arm thus acts symmetrically on both pairs of leaves.

[0026] According to an improvement, the door system incorporates a retractable mechanism configured to shift the pivot axis of the first leaf of the first pair of leaves when moving from the closed to the open position. This shift increases the distance between the closed and open positions of the leaves. By moving the pivot axis of the first leaf of the first pair of leaves, the space occupied by the leaves in the open position can be repositioned to free up more passage space. Furthermore, the leaves can be tucked behind the wall at the edge of the opening and concealed, thus improving the aesthetics of the system when open.

[0027] According to one design, the retracting mechanism comprises a sliding pivot, which forms the pivot axis of the first leaf of the first pair of leaves, within a third slide oriented in the same direction as the first slide. A bar carried by the first leaf and projecting opposite the other leaves, and a third connecting rod mounted at the end of the bar and pivotally mounted on a fixed axis intersecting with the axis of the third slide, are also included. The bar carried by the first leaf acts as a lever and cooperates with the third connecting rod to control the movement of the pivot axis of the first leaf.

[0028] Brief description of the figures

[0029] The invention will be better understood and other features and advantages will become apparent upon reading the following description, the description referring to the attached drawings, among which:

[0030] - Figure 1 is a perspective view of a door system according to a first embodiment of the invention, the leaves being in a closed position;

[0031] - Figure 2 is a figure similar to Figure 1 with the leaves in an intermediate position;

[0032] - Figure 3 is a figure similar to Figure 1 with the leaves in the open position;

[0033] - Figure 4 is a schematic top view of the system in Figure 3, i.e. the leaves are in the open position;

[0034] - Figure 5 is a schematic top view similar to Figure 4, in a first intermediate position between the open and closed positions; - Figure 6 is a view similar to Figure 4 in a second intermediate position between the open and closed positions;

[0035] - Figure 7 is a view similar to Figure 4 in a third intermediate position between the open position and the closed position;

[0036] - Figure 8 is a view similar to Figure 4 in a fourth intermediate position between the open position and the closed position;

[0037] - Figure 9 is a view similar to Figure 4 in the closed position;

[0038] - Figure 10 is a perspective view of a door system according to a second embodiment of the invention, the leaves being in a closed position;

[0039] - Figure 11 is a figure similar to Figure 10 with the leaves in an intermediate position;

[0040] - Figure 12 is a figure similar to Figure 10 with the leaves in the open position;

[0041] - Figure 13 is a schematic top view of the system in Figure 12, i.e. the leaves are in the open position;

[0042] - Figure 14 is a schematic top view similar to Figure 13, in a first intermediate position between the open position and the closed position;

[0043] - Figure 15 is a view similar to Figure 13 in a second intermediate position between the open position and the closed position;

[0044] - Figure 16 is a view similar to Figure 13 in a third intermediate position between the open position and the closed position;

[0045] - Figure 17 is a view similar to Figure 13 in a fourth intermediate position between the open position and the closed position;

[0046] - Figure 18 is a view similar to Figure 13 in the closed position.

[0047] Detailed description

[0048] A door system according to a first embodiment of the invention is shown in Figures 1 to 9. The figures depict the parts of a building on which the door system is intended to be installed. The building part comprises a facade wall M with an opening B and the beginning of a corridor C, delimited by two corridor walls C1 and C2, which opens onto the facade through this opening B. Such a door system comprises a pair 1 of leaves 11, 12 hinged to each other about a vertical axis V. In a closed position, as shown in Figure 1, the leaves 11, 12 are aligned with each other and in the plane of the opening B, so as to completely close the opening B. One of the two leaves 11 is mounted pivoting about a vertical axis W on the facade wall M along an edge B1 of the opening B.Opposite this pivoting axis W, one end of the second leaf 12 is guided in a first slide 3 positioned horizontally at the top of the opening B. The leaves 11, 12 present an exterior face 110, 120, opposite the corridor when they are in the closed position. Similarly, the face of the leaves 11, 12 on the corridor side will be designated as an interior face 111, 121. In an open position, the two leaves 11, 12 are folded against each other, exterior face 110 against exterior face 120, and are oriented in a plane substantially perpendicular to the plane of the opening B. As can be seen in Figure 3, the two leaves 11, 12 are stored with a very small gap relative to one of the walls Cl of the corridor C. This is one of the notable advantages of the invention compared to the prior art.To allow the leaves 11 and 12 to be operated without risk of interference, the pivot axis V of the leaves 11 and 12 relative to each other is located at the level of the outer faces 110 and 120, or even beyond the outer faces 110 and 120. The risk of interference could potentially be managed by a double hinge system (not shown), which would avoid a protruding axis but would perform an equivalent function. For the same reasons, the pivot axis W of the first leaf 11 on the building is located opposite the pivot axis of the leaves 11 and 12 relative to each other, that is, at the level of the inner face 111.

[0049] To control the movement of the leaves 11, 12 of this system, it is equipped with an operating device 4. The operating device 4 comprises a support frame 40 positioned above the opening B between the walls of the corridor C. In the embodiment presented here, the first slide 3 is mounted on the frame 40 of the device, but both could be fixed to the building separately. The operating device 4 includes an arm 58 designed to control the offset of the leaves 11, 12 relative to the plane of the opening B from the closed position. The operating device 4 includes a flexible link 42 mounted in a loop and motorization means 43 for driving the link 42. The flexible link 42 may be a smooth belt, a toothed belt, a chain, a cable, a rope, or something similar.The movement of link 42 causes the leaves 11, 12 to move between the closed and open positions, and vice versa, in a manner that will be detailed below. The arm 58 is operated by transformation means 5 to convert the movement of link 42 into the movement of arm 58.

[0050] The link 42 has a first strand 421 extending horizontally in the plane of bay B. The link 42 is linked to the second leaf 12 by means of a slide 30 mounted sliding in the first slide 3 and on which the second leaf 12 is mounted pivoting around an axis X, in order to drive the second leaf 12.

[0051] The transformation means 5 comprise a carriage 50 mounted to slide in a second slide 57 oriented parallel to and at a distance from the first slide 3, the second slide 57 being fixed to the frame 40. The arm 58 is pivotally mounted on the carriage 50 about a vertical axis. The carriage 50 further comprises a first and a second carriage return element 501, 502 with vertical axes of rotation. The carriage return elements 501, 502 are, for example, pulleys mounted to rotate on pivots, possibly via ball bearings or bushings.

[0052] The transformation means 5 further include a first and second fixed guide element 51, 52, the first fixed guide element 51 guiding the link 42 to the first carriage guide element 50, on which the link 42 makes a half-turn to return to the second fixed guide element 52. The first and second fixed guide elements 51, 52 are located in the immediate vicinity of the wall of corridor Cl, above the location provided for the leaves 11, 12 in the open position. The transformation means 5 further include a third and fourth fixed guide element 53, 54, the third fixed guide element 53 guiding the link 42 to the second carriage guide element 50, on which the link 42 makes a half-turn to return to the fourth fixed guide element 54.The operating device 4 further comprises two main guide members 55, 56 rotatably mounted on the frame 40 to guide the link 42 from the second and fourth fixed members 52, 54 respectively towards the first strand 421, substantially in the same vertical plane as the axis of the first slide 3. The loop of the link 42 is closed by connecting the third fixed guide member 53 to the first fixed guide member 51. The drive means 43 drive the third fixed guide member 53.

[0053] At one end opposite the carriage 50, the arm 58 is pivotally mounted on the second leaf 12 along an axis that lies substantially in the plane of the inner face 121, in the immediate vicinity of the pivot axis V of the leaves 11, 12 relative to each other. The distance between the first and second slides 3, 57, as well as the length of the arm 58, are designed so that the arm 58 is substantially perpendicular to the first slide 3 in the closed position. The arm 58, in the open position, has pivoted through an angle of approximately 120° to 170° relative to the closed position, i.e., it has completed almost a half-turn. This also means that the arm remains oriented at an angle of between 10° and 45° relative to the perpendicular position in the directions of the first and second slides 3, 57.

[0054] The operating mode of the door system will now be described in relation to Figures 4 to 9. An initial position is considered to be the open position, as shown in Figures 3 and 4. In this position, the first and second leaves 11, 12 are placed side by side, their outer faces 110, 120 facing each other. The first leaf 11 is also located along the first corridor wall CL. The carriage 50 is located at one end of the second track 57 closest to the first corridor wall CL, that is, substantially above the leaves 11, 12. Preferably, the carriage 50 is against the stop in this position.

[0055] The drive means 43 are activated such that the third fixed return member 53 is rotated in the direction of arrow F1, as shown in Figure 5, causing the link 42 to slide. This sliding creates tension in the strand connecting the third fixed return member 53 to the second carriage return member 502. This tension tends to move the carriage 50 in the direction of arrow F2. It is also transmitted to the strand connecting the second carriage return member 502 to the fourth fixed return member 54, and thus to the slide in the direction of arrow F3. The movement of the carriage 50 tends to compress the arm 58, and therefore exert a force along the axis of the arm 58 on the second leaf 12. This force is decomposed into two components: a first component in the direction of the first slide 3 and a second component in a direction perpendicular to the axis of the first slide 3.The second component is neutralized by the slide 30 which is guided in the first slide 3 and its reaction by the carriage 50 which is guided in the second slide 57, while the first component participates in the movement of the leaves 11, 12.

[0056] Continuing the movement, as shown in figure 6, the two leaves 11, 12 move away from each other, while the carriage 50 approaches the third fixed return member 53 and the arm 58 pivots on the carriage 50.

[0057] In the continuation of the movement, the arm 58 continues to pivot to pass to the other side of the second slide 57 as seen from above in figure 7.

[0058] In the position shown in Figure 8, the slide 30 has reached almost the end of the first guide 3, and the tension it exerts on the two leaves 11 and 12 has little effect on their relative movement. The movement of the link 42 primarily sets the carriage 50 in motion, which straightens the arm 58 relative to the plane of the opening B. Thus, the arm 58 exerts pressure on the second leaf 12, tending to bring it closer to the plane of the opening B, while the movement of the slide 30 is very limited. In other words, the arm 58 tends to deploy the knee joint system formed by the two leaves 11 and 12. The arm 58 is able to exert a very significant force to hold the leaves 11 and 12 in the closed position, and this with very little stress on the motorization means 43.

[0059] The system then reaches the closed position as shown in Figure 9. The carriage 50 has reached a position such that the arm 58 is substantially perpendicular to the plane of bay B. Preferably, the carriage 50 is against the stop in the second guide 57. The drive means 43 are activated to stop the movement of the link 42. In this position, the arm 58 ensures the irreversibility of the closing control movement. Indeed, any force exerted on the leaves 11, 12 towards a movement out of the plane of bay B is absorbed by the arm 58 without being transmitted to the carriage 50, and therefore without being transmitted to the drive means 43, since the direction of the arm 58 is perpendicular to the direction of the second guide 57.

[0060] To control the opening, that is, the transition from the closed to the open position, the movement of the drive means 43 is reversed to drive the third fixed return element in the opposite direction to arrow FL. The link 42 is energized between the third fixed return element 53 and the first fixed return element 51, and therefore between the first fixed return element 51 and the first carriage return element 501, so as to cause the carriage 50 to move in the opposite direction to arrow F2. The arm 58 begins to pivot and applies pressure to the second leaf perpendicular to the plane of the bay B, which causes the hinge system formed by the leaves 11, 12 to bend.

[0061] According to a second embodiment of the door system, shown in Figures 10 to 18, the door system comprises two pairs of leaves 1', 2, a third leaf 21 being hinged to the second leaf, a fourth leaf 22 being hinged to the third leaf 21, all leaves 11', 12', 21, 22 being in the plane of the opening B in the closed position. The operating device 4' includes a compass system 44 to synchronize the movement of the two pairs of leaves 1', 2. The compass system 44 is installed at the top of the leaves 11', 12', 21, 22. A second slide 32 guides the second leaf 12' of the first pair 1 and the first leaf 21 of the second pair 2 to their junction, by supporting their pivot axis X'. The compass system 44 includes at least one first lever 441, mounted pivoting on one side at the end of the arm 58' and on the other side in its middle on the second leaf 12' of the first pair 1.A second lever 442 is pivotally mounted on one end of the arm 58' and on the other end in its middle on the first leaf 21 of the second pair 2. A first connecting rod 443 is pivotally mounted on one end of the first lever 441 opposite the arm 58' and on the other end on the first leaf 11' of the first pair 1' of leaves. A second connecting rod 444 is pivotally mounted on one end of the second lever 442 opposite the arm 58' and on the other end on the second leaf 22 of the second pair 2 of leaves.

[0062] The door system further includes a retractable mechanism 6. Unlike the first embodiment, the first leaf 11 of the first pair 1 is mounted on a sliding pivot 64 in a third guide 63 oriented in the same direction as the first guide 3. The first leaf 11' extends into a bar 61 projecting opposite the other leaves 12', 21, 22. The retractable mechanism 6 further includes a third connecting rod 62 mounted at the end of the bar 61 and pivotally mounted on an axis intersecting with the axis of the third guide 63. This retractable mechanism 6 is replicated at a minimum at both the top and bottom of the first leaf 11'.

[0063] Apart from the fact that the arm 58' acts on the junction of the first and second levers 441, 442, and that the slide 30' supports the pivot of the second leaf 22 of the second pair 2, the rest of the operating device 4' is similar to that of the first embodiment.

[0064] The operating mode of the door system according to the second embodiment will now be described in relation 42 with figures 13 to 18. An initial position is considered to be the opening position, as shown in figures 12 and 13. In this position, the leaves 11', 12', 21, 22 are placed against each other, the outer faces of the leaves 11', 12', 21, 22 of each pair 1', 2 being opposite each other. The first leaf 11' of the first pair 1' is also located along the first corridor wall, with the sliding pivot 64 closest to the first corridor wall Cl in the third slide 63. The carriage 50 is located at one end of the second slide 57' closest to the first corridor wall Cl, i.e. substantially above the leaves 11', 12', 21, 22. Preferably, the carriage 50 is at the stop in this position.The set of leaves 11', 12', 21, and 22 is positioned behind wall M in the space between the edge B1 of the bay and the corridor wall CL. Thus, passage through bay B to corridor C is completely unobstructed. The drive mechanism 43 is activated such that the third fixed return element 53 is rotated in the direction of arrow F1, as shown in Figure 14, which causes the link 42' to slide. This sliding creates tension in the strand connecting the third fixed return element 53 to the second carriage return element 502. This tension tends to move the carriage 50 in the direction of arrow F2. It is also transmitted to the strand connecting the second carriage return element 502 to the fourth fixed return element 54, and thus to the slide 30' in the direction of arrow F3.The movement of the carriage 50 tends to compress the arm 58', and therefore exerts a force along the axis of the arm 58' on the levers 441, 442 of the compass system 44. The levers 441, 442, articulated on the leaves 12', 21, form a V, on the point of which the arm 58' exerts a pressure tending to flatten the V. This tends to move the leaves 11', 12', 21, 22 apart from each other and contributes to the movement of the leaves 11', 12', 21, 22, in addition to the traction exerted on the slide 30' by the link 42'. Furthermore, at the level of the retracting mechanism 6, the pivoting of the first leaf 11' of the first pair 1' causes the bar 61 to bear against the third connecting rod 62, which causes the pivot axis of the first leaf 11 of the first pair 1 to move in the third slide 63.

[0065] Continuing the movement, as shown in figure 15, the four leaves 11', 12', 21, 22 move apart from each other, while the carriage 50 approaches the third fixed return member 53 and the arm 58' pivots on the carriage 50. The retracting mechanism 6 continues to move the sliding pivot 64 of the first leaf 11' of the first pair 1' in the direction of arrow F3.

[0066] In the continuation of the movement, the arm 58' continues to pivot to pass to the other side of the second slide 57', as seen from above in figure 16.

[0067] In the position reached as shown in Figure 17, the slide 30' has reached practically the end of the first guide 3', and the traction it exerts on the leaves 11', 12', 21, 22 has little effect on their relative movement. The movement of the link 42' primarily sets the carriage 50 in motion, which straightens the arm 58' relative to the plane of bay B. Thus, the arm 58' exerts pressure on the levers 441, 442, which bear against the connecting rods 443, 444, tending to bring the second leaf 12' of the first pair 1 and the first leaf 21 of the second pair 2 closer to the plane of bay B, while the movement of the slide 30' is very limited. The arm 58' is able to exert a very significant force to press the leaves 11', 12', 21, 22 into the closed position, and this with very little strain on the motorization means 43. The system then reaches the closed position as shown in figure 18.The carriage 50 has reached a position such that the arm 58' is substantially perpendicular to the plane of bay B. Preferably, the carriage 50 is against the stop in the second slide 57'. The drive means 43 are activated to stop the movement of the link 42'. In this position, the arm 58' ensures that the closing control movement is irreversible. The retractable mechanism 6 made it possible to move the set of leaves 11', 12', 21, 22 away from the wall of tunnel Cl in the direction of the plane of bay B. This allows that in the open position, despite the thickness of the stack of leaves 11', 12', 21, 22, bay B is completely clear, as can be seen in particular in figure 12, while, in the closed position, the set of leaves 11', 12', 21, 22 is inserted into bay B.

[0068] To control the transition from the closed position to the open position, the movement of the motorization means 43 is reversed to drive the third fixed return element 53 in the opposite direction to arrow FL. The link 42' is energized between the third fixed return element 53 and the first fixed return element 51, and therefore between the first fixed return element 51 and the first return element of the carriage 501, so as to cause the movement of the carriage 50 in the opposite direction to arrow F2. The arm 58' begins to pivot on the carriage 50 and actuates the levers 441, 442 perpendicularly to the plane of bay B, which causes the leaves 11', 12', 21, 22 connected to the levers to move out of the plane of bay B. The door system returns to the open position in a reverse movement by the combined action of the link 42' on the slide 30' and on the carriage 50.

[0069] In a third embodiment, not shown, the door system has an odd number of leaves, for example, three leaves. It resembles the second embodiment, but without the second leaf of the second pair and without the second connecting rod. The third leaf is operated by the second lever and pivots on the second leaf. Alternatively, it can be guided in the first track.

[0070] The invention is not limited to the embodiments described above by way of example. The retracting mechanism could also be applied to the first embodiment. The number of leaf pairs could also be increased by supplementing the compass system. The linkage could drive the second slide in the second embodiment. In the first embodiment, the arm could act on the first leaf, and the pivot axis of the arm could be offset further towards the middle of the leaf. The drive means could drive the first fixed return element 51.

Claims

Demands 1. Operating device for a door comprising at least one pair (1, 2) of leaves (11, 12, 21, 22) hinged together along a vertical axis, one of the two leaves being mounted to pivot about a vertical axis along an edge of an opening (B) of a building, each pair (1, 2) of leaves being movable between an open position, in which the two leaves are folded against each other and are oriented in a plane substantially perpendicular to the plane of the opening (B), and a closed position, in which the leaves are aligned with each other and in the plane of the opening (B), the operating device (4, 4') comprising a first horizontally positioned guide (3) intended to guide one end of the second leaf, the operating device (4, 4') being characterized in that it comprises a flexible loop (42, 42'), and motorization means. (43) to scroll through link (42, 42'), link (42,42') comprising a first strand (421) extending horizontally in the plane of the bay (B), the link (42, 42') being intended to be linked to the second leaf of one of the pairs of leaves in order to drive it into the first slide (3), the operating device (4, 4') further comprising an arm (58, 58') intended to control the offset of the leaves (11, 12, 21, 22) with respect to the plane of the bay (B) from the closed position, the arm (58, 58') being operated by transformation means (5) to transform the movement of the link (42, 42') into movement of the arm (58, 58'); the transformation means (5) being designed to act differentially between the movement of the driven leaf (12, 22) and the movement of the arm (58, 58').

2. Maneuvering device according to claim 1, in which the transformation means (5) comprise a carriage (50) mounted to slide in a second slide (57, 57') oriented parallel and at a distance from the first slide (3), the arm (58, 58') being pivotally mounted on the carriage (50), the arm (58, 58') being substantially perpendicular to the first slide (3) in the closed position.

3. Maneuvering device according to claim 2, wherein the arm (58, 58') in the open position has pivoted through an angle between 120° and 170° relative to the closed position.

4. A maneuvering device according to claim 2 or 3, wherein the carriage (50) comprises a first and a second carriage return member (50), the means of transformation (5) comprising a first and second fixed return element (51, 52), the first fixed return element (51) guiding the link (42, 42') to the first carriage return element (501) on which the link (42, 42') makes a half-turn to return to the second fixed return element (52), transformation means (5) comprising a third and fourth fixed return element (53, 54), the third fixed return element (53) guiding the link (42, 42') to the second carriage return element (502) on which the link (42, 42') makes a half-turn to return to the fourth fixed return element (54), the operating device (4, 4') further comprising two main return elements (55, 56) to guide the link (42, 42') from the second and fourth fixed elements respectively (52, 54) towards the first strand (421).

5. Maneuvering device according to claim 4, wherein the link (42, 42') comprises a strand (421) connecting the first and third fixed return member (51, 53).

6. Maneuvering device according to claim 4 or 5, wherein the motorization means (43) drive the first or third fixed return member (51, 53).

7. Operating device according to any one of the preceding claims, in which a slide (30, 30') is mounted to slide in the first slide (3, 3'), the second leaf (12, 22) being intended to be mounted pivoting on the slide (30, 30').

8. A door system comprising at least one pair (1, 2) of leaves (11, 12, 21, 22) hinged together about a vertical axis (V), one of the two leaves (11, 11') being designed to pivot about a vertical axis (W) along an edge of an opening (B) in a building, one end of the second leaf (12, 22) being guided in a first horizontally positioned track (3, 3'), each pair (1, 2) of leaves (11, 12, 11', 12', 21, 22) being movable between an open position, in which the two leaves (11, 12, 11', 12', 21, 22) are folded back on each other and are oriented in a plane substantially perpendicular to the plane of the opening (B), and a closed position, in which the leaves (11, 12, 11', 12', 21, 22) are aligned with each other and in the plane of the bay (B), the door system being characterized in that it includes an operating device (4, 4') according to one of the preceding claims.

9. A door system according to claim 8, characterized in that it comprises at least two pairs of leaves (11', 12', 21, 22), the first of the leaves (21) of the second pair (2) being articulated on the second leaf (12') of the first pair (1), a second of the leaves (22) of the second pair (2) being articulated on the first leaf (21) of the second pair (2), all the leaves (11', 12', 21, 22) being in the same closing plane in the closed position, the operating device (4, 4') comprising a compass system (44) to synchronize the movement of the two pairs of leaves (11', 12', 21, 22).

10. Door system according to claim 8, characterized in that it comprises at least one pair of leaves and a third leaf hinged on the second leaf of the pair, all the leaves being in the same closing plane in the closed position, the operating device comprising a compass system to synchronize the movement of all the leaves.

11. Door system according to claim 9 or 10, wherein the compass system (44) comprises at least a first lever (441), pivotally mounted on one side at the end of the arm (58') and on the other side in its middle on the second leaf (12') of the first pair (1), a second lever (442), pivotally mounted on one side at the end of the arm (58') and on the other side in its middle on the first leaf (21) of the second pair (2) when the claim depends on claim 9 or on the third leaf when the claim depends on claim 10, and a first connecting rod (443) pivotally mounted on one side at one end of one of the levers (441) opposite the arm (58') and on the other side on the leaf (11') of the same pair (1') adjacent to that on which the lever (441) is pivotally mounted.

12. Door system according to claim 11, wherein the compass system (44) further comprises a second connecting rod (444) pivotally mounted on one end of the other of the levers (442) opposite the arm (58') and on the other end on the leaf (22) of the same pair adjacent to that on which the lever (442) is pivotally mounted.

13. Door system according to any one of claims 8 to 12, characterized in that it comprises a retractable mechanism (6) configured to translate the pivot axis (W') of the first leaf (11') of the first pair (1') of leaves when passing from the closed position to the open position so as to increase the distance between the closed position of the leaves (11', 12', 21, 22) and the open position of the leaves (11', 12', 21, 22).

14. Door system according to claim 13, in which the retracting mechanism (6) comprises a sliding pivot (64), forming the pivot axis of the first leaf (11') of the first pair (1') of leaves, in a third slide (63) oriented in the same direction as the first slide (3), a bar (61) carried by the first leaf (11') and projecting opposite the other leaves (12', 21, 22), and a third connecting rod (62) mounted at the end of the bar (61) and pivotally mounted on a fixed axis concurrent with the axis of the third slide (63).

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