Door operating device and door system including such a device.

Abstract

An operating device for a door comprises at least one pair (1, 2) of leaves (11, 12, 21, 22) hinged together along a vertical axis, each pair (1, 2) of leaves being movable between an open position, in which the two leaves are folded back on each other and are oriented in a plane substantially perpendicular to the plane of a bay (B), and a closed position, in which the leaves are aligned with each other and in the plane of the bay (B). The operating device (4, 4') includes 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 drive it into a slide (3). The operating device (4, 4') further includes an arm (58, 58') provided for controlling the offset of the leaves (11, 12, 21, 22) relative to the plane of the opening (B) from the closed position. Figure for the abbreviation: Fig. 1

Description

Title of the invention: Door operating device and door system comprising such a device. technical field

[0001] 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. Prior art

[0002] Motorized door systems are known which have two leaves hinged together along a vertical axis, and the first of which is mounted to pivot on a vertical axis along the edge of an opening, the end of the second leaf being guided in a slide extending horizontally in the plane of the opening. The guidance can be carried out simultaneously at the top and bottom of the second leaf.

[0003] One solution for motorizing this type of door is to fix a rotary actuator to one of the leaves, with an arm that acts on the second leaf either by support or via a second arm. Document FR 2 820 164 A1 shows an example of such an embodiment. This type of motorization is functional. However, the rotary actuator is a device that protrudes from the plane 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 along the corridor wall.

[0004] Door systems with at least two pairs of leaves, thus exhibiting an accordion-like arrangement, are also known. To implement the solution described in document FR 2 820 164 A1, it is necessary to use a rotary actuator for each pair, which entails significant costs.

[0005] Door systems are also known in which the first leaf is pivotally mounted on a rotary motor for direct drive. Often, the rotary motor is housed in a cavity in the floor, which requires 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 provide a powerful rotary motor to move it out of this position. Description of the invention

[0006] 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.

[0007] 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 an axis vertical, one of the two leaves being mounted pivoting about a vertical axis on a building along the edge of a bay, 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 aligned with each other and in the plane of the bay, the operating device comprising a first horizontally placed slide intended 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 comprising a first strand extending horizontally in the plane of the bay, the link being intended to be linked to the second leaf of one of the pairs of leaves in order to drive it in the first slide,The operating mechanism further comprises an arm designed to control the offset of the leaves relative to the plane of the bay from the closed position, the arm being operated by means of transformation to convert the movement of the link into movement of the arm.

[0008] 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 to achieve and requires the least effort. Conversely, from the open position, the movement of the leaf in the track requires the least effort. The transformation means distribute the force supplied by the motor between the two points of action, so that the point requiring the least effort achieves the movement of the system. This principle is applicable to a system with two or more leaves, whether the number of leaves is even or odd, as will be explained later.

[0009] According to one design, the transformation means comprise a carriage mounted to slide in 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 carriage to move because the force transmitted by the arm is perpendicular to the direction of the second slide.

[0010] 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 with respect to the direction of the second slide. This ensures that the movement of the carriage from this position develops a component in the direction of the second slide and does not risk creating a blockage.

[0011] According to an improvement, 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, it is understood that the movement of the arm is not directly linked to the movement of the door leaf, but that the force exerted by the linkage can be distributed between the two components by means of the transformation means. The forces to be supplied via the linkage are thus limited by the component that offers the least resistance. Furthermore, it is not necessary to control the components separately, but a single control is sufficient to obtain the movements of the door system.

[0012] According to one 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, on which the link makes a half-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, on which the link makes a half-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. The set of return elements determines 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 movement of the link into the movement of the entire assembly for opening or closing the doors.

[0013] According to the improvement, the link comprises a strand connecting the first and third fixed return members. This allows for the most compact arrangement of the device.

[0014] According to one design arrangement, the drive means drive the first or third fixed return element. This arrangement also allows for a very compact configuration, using the fixed return element to transmit the winding motion to the link via the drive means, since the return element thus performs two functions. Alternatively, a drive pulley with rollers could be provided to guide the winding of the link around the drive pulley.

[0015] According to one design, a sliding slide is mounted within the first guide rail, the second leaf being intended to pivot on the slide. This separates the function of linear guidance within the guide rail from that of pivoting the leaf. Alternatively, a roller can be provided which is guided within the first guide rail, thus combining the functions of linear guidance within the guide rail and pivoting guidance of the leaf.

[0016] The invention also relates to a door system comprising at least one pair of leaves articulated together along a vertical axis, a 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.

[0017] According to a second embodiment, the door system comprises at least two pairs of leaves, the first leaf of the second pair being hinged to the second leaf of the first pair, and the second leaf of the second pair being hinged to the first leaf of the second pair. All leaves are in the same closing plane when closed. The operating device 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 in the open position. The compass system is a combination of levers that transmits the movement from one pair of leaves to the other.

[0018] 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 the leaves being in the same closing plane in the closed position, the operating device comprising a compass system for synchronizing the movement of all the leaves. The door system is also suitable for an odd number of leaves.

[0019] According to one design, the compass system comprises at least one first 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 first 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.

[0020] According to an improvement, the compass system further comprises a second connecting rod pivotally mounted on one end of the other lever opposite the arm and on the other side of the leaf of the same pair adjacent to the one on which the lever is pivotally mounted. The arm thus acts symmetrically on the two pairs of leaves.

[0021] According to an improvement, the door system includes a retractable mechanism configured to translate the pivot axis of the first leaf of the first pair of leaves when moving from the closed to the open position, thereby increasing 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 shifted to free up a larger passageway. Furthermore, the leaves can thus be tucked behind the wall at the edge of the opening and concealed, thereby improving the aesthetics of the system in the open position.

[0022] According to one design, the retracting mechanism comprises a sliding pivot, forming the pivot axis of the first leaf of the first pair of leaves, in 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. 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.

[0023] The invention will be better understood and other features and advantages will become apparent upon reading the following description, the description referring to the accompanying drawings, among which:

[0024] - Fig. 1 is a perspective view of a door system according to a first mode of implementation of the invention, the leaves being in a closed position; - [Fig.2] is a figure similar to [Fig.1] with the leaves in an intermediate position; - [Fig.3] is a figure similar to [Fig.1] with the leaves in the open position; - [Fig.4] is a schematic top view of the system in [Fig.3], i.e. the leaves are in the open position; - [Fig.5] is a schematic top view similar to [Fig.4], in a first intermediate position between the open position and the closed position; - [Fig.6] is a view similar to [Fig.4] in a second intermediate position between the open position and the closed position; - [Fig.7] is a view similar to [Fig.4] in a third intermediate position between the open position and the closed position; - [Fig.8] is a view similar to [Fig.4] in a fourth intermediate position between the open position and the closed position; - [Fig.9] is a view similar to [Fig.4] in the closed position; - [Fig. 10] is a perspective view of a door system according to a second embodiment of the invention, the leaves being in a closed position; - [Fig. 11] is a figure similar to [Fig. 10] with the leaves in an intermediate position; - [Fig. 12] is a figure similar to [Fig. 10] with the leaves in the open position; - [Fig.13] is a schematic top view of the system in [Fig.12], i.e. the leaves are in the open position; - [Fig.14] is a schematic top view similar to [Fig.13], in a first intermediate position between the open position and the closed position; - [Fig. 15] is a view similar to [Fig. 13] in a second intermediate position between the open position and the closed position; - [Fig. 16] is a view similar to [Fig. 13] in a third intermediate position between the open position and the closed position; - [Fig. 17] is a view similar to [Fig. 13] in a fourth intermediate position between the open position and the closed position; - [Fig. 18] is a view similar to [Fig. 13] in the closed position.

[0025] 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, 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 [Fig. 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 [Fig. 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 between them, 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 having 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.

[0026] 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 bay 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 for controlling the offset of the leaves 11, 12 relative to the plane of the bay 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 other means. The movement of link 42 drives the movement of the leaves 11, 12 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.

[0027] 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 to slide in the first slide 3 and on which the second leaf 12 is mounted pivoting about an axis X, in order to drive the second leaf 12.

[0028] 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.

[0029] The transformation means 5 further comprise a first and second fixed guide member 51, 52, the first fixed guide member 51 guiding the link 42 to the first carriage guide member 50, on which the link 42 makes a half-turn to return to the second fixed guide member 52. The first and second fixed guide members 51, 52 are located in the immediate vicinity of the corridor wall Cl, above the location provided for the leaves 11, 12 in the open position. The transformation means 5 further comprise a third and fourth fixed guide member 53, 54, the third fixed guide member 53 guiding the link 42 to the second carriage guide member 50, on which the link 42 makes a half-turn to return to the fourth fixed guide member 54.The operating device 4 further comprises two main guide members 55, 56 rotatably mounted on the frame 40 in order 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.

[0030] At one end opposite the carriage 50, the arm 58 is pivotally mounted on the second leaf 12 about an axis that is 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 arranged 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 between 120° and 170° with respect to the position of closure, that is to say it has made almost a half turn. This also means that the arm remains oriented at an angle between 10° and 45° with respect to the position perpendicular to the directions of the first and second slide 3, 57.

[0031] 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 guide 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.

[0032] 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 [Fig. 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 in 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. .

[0033] Continuing the movement, as shown in [Fig.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.

[0034] 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 [Fig.7].

[0035] In the position reached as shown in [Fig. 8], the slide 30 has reached practically the end of the first guide 3, and the traction it exerts on the two leaves 11, 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 bay B. Thus, the arm 58 exerts pressure on the second leaf 12, tending to bring it closer to the plane of the bay 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, 12. The arm 58 is able to exert a very significant force to press the leaves 11,12 into the closed position, and this with very little strain on the motorization means 43.

[0036] The system then reaches the closed position as shown in [Fig. 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 slide 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 slide 57.

[0037] To control the opening, i.e., the transition from the closed position 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 movement of the carriage 50 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.

[0038] 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 the 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 for synchronizing 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'.

[0039] The compass system 44 comprises at least one first lever 441, pivotally mounted on one side at the end of the arm 58' and on the other side at its midpoint on the second leaf 12' of the first pair 1. A second lever 442 is pivotally mounted on one side at the end of the arm 58' and on the other side at its midpoint on the first leaf 21 of the second pair 2. A first connecting rod 443 is pivotally mounted on one side at one end of the first lever 441 opposite the arm 58' and on the other side on the first leaf 11' of the first pair 1' of leaves. A second connecting rod 444 is mounted pivotally 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.

[0040] The door system further comprises 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 comprises 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'.

[0041] Apart from the fact that the arm 58' acts on the junction of the first and second lever 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.

[0042] 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, that is substantially above the leaves 11', 12', 21, 22. Preferably, the carriage 50 is against the stop in this position.The set of leaves 11', 12', 21, 22 is placed behind wall M in the space between edge B1 of the bay and corridor wall CL. Thus, passage through bay B to corridor C is completely unobstructed.

[0043] 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 [Fig. 14], 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 30' 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 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 spread 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.

[0044] Continuing the movement, as shown in [Fig. 15], the four leaves 11', 12', 21, 22 move apart from each other, while the carriage 50 moves closer to the third fixed return member 53 and the arm 58' pivots on the carriage 50.The retractable 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.

[0045] 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 [Fig.16].

[0046] In the position reached as shown in [Fig. 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, which tends 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.

[0047] The system then reaches the closed position as shown in [Fig. 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 motorization means 43 are controlled to stop the movement of the link 42'. In this position, the arm 58' ensures irreversibility of the closing control movement. The retracting mechanism 6 has made it possible to move all the leaves 11', 12', 21, 22 away from the tunnel wall 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 unobstructed, as can be seen in particular in [Fig. 12], whereas, in the closed position, the set of leaves 11', 12', 21, 22 is inserted into bay B.

[0048] To control the transition from the closed position to the open position, the movement of the drive 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 carriage return element 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.

[0049] 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 controlled by the second lever and pivots on the second leaf. Alternatively, it can be guided in the first track.

[0050] 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 member 51.

Claims

Demands

1. An operating device for a door comprising at least one pair (1, 2) of leaves (11, 12, 21, 22) hinged together about a vertical axis, one of the two leaves being mounted pivoting about a vertical axis along an edge of an opening (B) in 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 slide (3) provided 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 draw 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').

2. Maneuvering device according to claim 1, in which the transforming 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. Operating 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 any one of the preceding claims, wherein the transforming means (5) are designed to act differentially between the movement of the driven leaf (12, 22) and the movement of the arm (58, 58').

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

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

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

8. 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 pivotally on the slide (30, 30').

9. A door system comprising at least one pair (1, 2) of leaves (11, 12, 21, 22) hinged together about a vertical axis (V), a first of the two leaves (11, 11') being intended to be mounted pivoting about a vertical axis (W) along an edge of a bay (B) of a building, one end of the second leaf (12, 22) being guided in a first horizontally placed slide (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 bay (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 comprises an operating device (4, 4') according to one of the preceding claims.

10. Door system according to claim 9, characterized in that it comprises at least two pairs of leaves (11', 12', 21, 22), a 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) for synchronizing the movement of the two pairs of leaves (11', 12', 21, 22).

11. Door system according to claim 9, 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.

12. Door system according to claim 10 or 11, 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 10 or on the third leaf when the claim depends on claim 11, 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.

13. Door system according to claim 12, wherein the compass system (44) further comprises a second connecting rod (444) pivotally mounted on one end of the other of the levers (442)

14.

15. opposite the arm (58') and on the other hand on the leaf (22) of the same pair adjacent to that on which the lever (442) is pivotally mounted. Door system according to any one of claims 9 to 13, characterized in that it comprises a retracting mechanism (6) configured to translate the pivot axis (W') of the first leaf (11') of the first pair (1') of leaves during the transition 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). Door system according to claim 14, 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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