Electromechanical actuator for a screening device, and screening device comprising such an electromechanical actuator

Abstract

The invention relates to an electromechanical actuator (11) comprising a casing (17), an electric motor (16), a reduction gear unit (19a, 19b), a coupling element (20a, 20b) and a torque transmission device (10a, 10b) with a transmission shaft (38), a first pin (39) and a second pin (40). A first end of the transmission shaft (38) is arranged within a first housing (43) of the reduction gear unit (19a, 19b). The actuator (11) is configured to transmit a torque from the electric motor (16) to the coupling element (20a, 20b), via the device (10a, 10b), when an axis of rotation (X10a, X10b) of the device (10a, 10b) and an axis of rotation (X20a, X20b) of the coupling element (20a, 20b) are offset.

Description

[0001] ELECTROMECHANICAL ACTUATOR FOR A SHADING DEVICE AND SHADING DEVICE COMPRISING SUCH AN ELECTROMECHANICAL ACTUATOR

[0002] The present invention relates to an electromechanical actuator of a blackout device, in other words an electromechanical actuator for a blackout device.

[0003] The present invention also relates to a concealment device comprising a screen driven in movement by such an electromechanical actuator.

[0004] In general, the present invention relates to the field of occultation devices comprising a motorized drive device moving a screen, between at least a first position and at least a second position and, optionally, between at least a third and at least a fourth position.

[0005] And, more particularly, the present invention relates to the field of shading devices comprising at least one screen, a first movable bar, a second movable bar and a motorized drive device. In an assembled configuration of the shading device, the first movable bar is disposed between an upper portion of a window or door and the second movable bar. The second movable bar is disposed between the first movable bar and a lower portion of the window or door. The screen is disposed between the first and second movable bars. The screen is configured to be driven into movement by the motorized drive device.The motorized drive device sets in motion, on the one hand, the first movable bar connected to the screen, between at least a first position and at least a second position, and, on the other hand, the second movable bar connected to the screen, between at least a third position and at least a fourth position.

[0006] A motorized drive device comprises an electromechanical actuator of a movable occultation or solar protection element, such as a blind or any other equivalent material, hereinafter called a screen.

[0007] Document US 2008 / 0102965 A1 is already known, which describes an electromechanical actuator comprising a housing, an electric motor, a reducer, a coupling element and a torque transmission device. The electric motor, the reducer and the torque transmission device are housed inside the housing. The reducer is coupled with the coupling element via the torque transmission device.

[0008] The torque transmission device comprises a transmission element and a guide element. The transmission element comprises, on a first side, a receiving hole and, on a second side opposite the first side, a protruding element. The guide element comprises, on a first side, a first groove and, on a second side opposite the first side, a second groove. The first groove is angularly oriented at right angles to the second groove. The coupling element comprises, on a first side, a protruding element and, on a second side opposite the first side, a hole, this hole being configured to be coupled with a shaft.

[0009] In the assembled configuration of the electromechanical actuator, the reducer is coupled with the transmission element by inserting an output shaft of the reducer into the receiving hole of the transmission element. The transmission element is coupled with the guide element by inserting the protruding element of the transmission element into the first groove of the guide element. Further, the coupling element is coupled with the guide element by inserting the protruding element of the coupling element into the second groove of the guide element.

[0010] Thus, the electromechanical actuator comprises a first coupling between the transmission element and the guide element and a second coupling between the guide element and the coupling element together forming an assembly called an "Oldham cross".

[0011] Such an assembly between the transmission element, the guide element and the coupling element makes it possible to correct a misalignment of the rotation axis of each of these elements, in particular when driving the output shaft of the reducer in rotation by the electrical activation of the electric motor.

[0012] However, such an assembly of this electromechanical actuator has the disadvantage of correcting only a small misalignment of the axes of rotation of the transmission element, the guide element and the coupling element and of transmitting only a small torque from the electric motor to the coupling element through the torque transmission device.

[0013] Also known is document EP 2 182 163 A1 which describes an electromechanical actuator according to the preamble of claim 1.

[0014] The present invention aims to solve the aforementioned drawbacks and to propose an electromechanical actuator of a concealment device, as well as a concealment device comprising such an electromechanical actuator, making it possible to transmit, from an electric motor, a significant torque to a coupling element, through a torque transmission device, when an axis of rotation of the torque transmission device and an axis of rotation of the coupling element are misaligned.

[0015] In this regard, the present invention aims, according to a first aspect, at an electromechanical actuator for a concealment device, the electromechanical actuator comprising at least:

[0016] - a casing, - an electric motor,

[0017] - a reducer,

[0018] - a coupling element, the coupling element comprising a first axis of rotation, and

[0019] - a torque transmission device, the torque transmission device comprising a second rotational axis, the electric motor, the reducer and the torque transmission device being housed inside the housing, the reducer being coupled with the coupling element via the torque transmission device.

[0020] According to the invention, the torque transmission device comprises at least:

[0021] - a transmission shaft,

[0022] - a first pin and

[0023] - a second pin.

[0024] The drive shaft includes at least:

[0025] - a first end and a second end, the second end being opposite the first end,

[0026] - a first opening, the first opening being provided at the first end, the first pin being housed inside the first opening, and

[0027] - a second opening, the second opening being provided at the second end, the second pin being housed inside the second opening.

[0028] The reducer comprises at least a first housing, the first end of the transmission shaft being disposed inside the first housing of the reducer.

[0029] The coupling element comprises at least one second housing, the second end of the transmission shaft being disposed inside the second housing of the coupling element.

[0030] Furthermore, the electromechanical actuator is configured to transmit, i.e. transmits, from the electric motor, a torque to the coupling element, through the torque transmission device, when the second axis of rotation of the torque transmission device and the first axis of rotation of the coupling element are misaligned.

[0031] Thus, such a construction of the electromechanical actuator makes it possible to transmit, from the electric motor, a torque, in particular a significant torque, to the coupling element, through the torque transmission device, when the second axis of rotation of the torque transmission device and the first axis of rotation of the coupling element are offset, in particular by a significant amount.

[0032] According to an advantageous characteristic of the invention, each of the first and second ends of the transmission shaft is of spherical shape. In addition, the first housing of the reducer and the second housing of the coupling element have a shape of revolution, respectively around an axis of rotation.

[0033] According to another advantageous characteristic of the invention, the reducer further comprises at least one interface element. Furthermore, the first housing of the reducer is arranged inside the interface element.

[0034] According to another advantageous characteristic of the invention, the torque transmission device further comprises a first transmission element and a second transmission element. The first transmission element is fixed to the first pin. The second transmission element is fixed to the second pin. The reducer comprises a first groove, the first groove opening inside the first housing of the reducer. The coupling element comprises a second groove, the second groove opening inside the second housing of the coupling element. The first transmission element is housed inside the first groove of the reducer. Furthermore, the second transmission element is housed inside the second groove of the coupling element.

[0035] Alternatively, the reducer includes two first grooves, each of the first grooves opening into the first housing of the reducer. The coupling element includes two second grooves, each of the second grooves opening into the second housing of the coupling element. The first pin includes a first end and a second end, the second end being opposite the first end. The second pin includes a first end and a second end, the second end being opposite the first end. Each of the first and second ends of the first pin is housed within one of the first grooves of the reducer. Further, each of the first and second ends of the second pin is housed within one of the second grooves of the coupling element.

[0036] Alternatively, the reducer includes two first ports, each of the first ports opening into the first housing of the reducer. The coupling element includes two second ports, each of the second ports opening into the second housing of the coupling element. The first pin includes a first end and a second end, the second end being opposite the first end. The second pin includes a first end and a second end, the second end being opposite the first end. Each of the first and second ends of the first pin is secured inside one of the first ports of the reducer. Further, each of the first and second ends of the second pin is secured inside one of the second ports of the coupling element.

[0037] The present invention relates, according to a second aspect, to a concealment device, the concealment device comprising at least:

[0038] - a screen, the screen comprising a first end and a second end, the second end being opposite the first end,

[0039] - a first movable bar, the first end of the screen being connected to the first movable bar, and

[0040] - a motorized drive device, the motorized drive device being configured to drive the screen in movement, the motorized drive device comprising at least:

[0041] - an electromechanical actuator according to the invention and as mentioned above, the electromechanical actuator being configured to drive the first movable bar in movement.

[0042] This occultation device has characteristics and advantages similar to those described previously, in relation to the electromechanical actuator according to the invention.

[0043] According to an advantageous characteristic of the invention, the concealment device further comprises:

[0044] - a first cord or a first chain,

[0045] - a second cord or a second chain,

[0046] - a first drive arrangement, the first drive arrangement being configured to cooperate with the first cord or the first chain, and

[0047] - a second drive arrangement, the second drive arrangement being configured to cooperate with the second cord or the second chain.

[0048] Furthermore, the electromechanical actuator is configured to drive the first movable bar in movement by means of the first and second cords or chains.

[0049] According to another advantageous characteristic of the invention, the occulting device further comprises a second movable bar, the second end of the screen being connected to the second movable bar. Furthermore, the electromechanical actuator is configured to drive the second movable bar in movement. According to another advantageous characteristic of the invention, the occulting device further comprises:

[0050] - a third cord or a third chain,

[0051] - a fourth cord or a fourth chain,

[0052] - a third drive arrangement, the third drive arrangement being configured to cooperate with the third cord or the third chain, and

[0053] - a fourth drive arrangement, the fourth drive arrangement being configured to cooperate with the fourth cord or the fourth chain.

[0054] Furthermore, the electromechanical actuator is configured to drive the second movable bar in movement by means of the third and fourth cords or chains.

[0055] Other features and advantages of the invention will appear in the following description, given with reference to the appended drawings, given as non-limiting examples and in which:

[0056] [Fig 1] Figure 1 is a schematic perspective view of an installation comprising a concealment device according to a first embodiment of the invention;

[0057] [Fig 2] Figure 2 is a schematic perspective view of an electromechanical actuator of a motorized drive device of the occulting device illustrated in Figure 1, where a cover has been removed;

[0058] [Fig 3] Figure 3 is a schematic view similar to Figure 2 where a part of the electromechanical actuator is in section and where a part of a housing of a coupling device has been removed;

[0059] [Fig 4] Figure 4 is a schematic perspective and sectional view of a torque transmission device of the electromechanical actuator illustrated in Figures 1 to 3 according to the first embodiment;

[0060] [Fig 5] Figure 5 is a schematic and exploded view of the torque transmission device illustrated in Figure 4;

[0061] [Fig 6] Figure 6 is a schematic view similar to Figure 4 illustrating a torque transmission device according to a second embodiment;

[0062] [Fig 7] Figure 7 is a schematic and exploded view of the torque transmission device illustrated in Figure 6;

[0063] [Fig 8] Figure 8 is a schematic view similar to Figures 4 and 6 illustrating a torque transmission device according to a third embodiment; and [Fig 9] Figure 9 is a schematic and exploded view of the torque transmission device illustrated in Figure 8.

[0064] Firstly, with reference to FIG. 1, an installation 1 comprising a closing, concealing or solar protection device 3 according to a first embodiment of the invention is described. This installation 1, installed in a building, not shown, comprises an opening, not shown, in which a window or a door, not shown, is arranged. This installation 1 is equipped with a screen 2 belonging to the closing, concealing or solar protection device 3, in particular a motorized blind. The screen 2 is configured to conceal, at least partially, the opening made in a wall of the building.

[0065] The closing, concealing or sun protection device 3 is hereinafter called the “concealing device”. The concealing device 3 comprises the screen 2.

[0066] Here, the screen 2 can be formed, for example, from a pleated or honeycombed fabric or from slats which can be adjusted.

[0067] The screen 2 comprises a first end 2a, in particular an upper end, and a second end 2b, in particular a lower end, the second end 2b being opposite the first end 2a.

[0068] A blind according to the first embodiment of the invention is described with reference to FIG. 1.

[0069] The occulting device 3 comprises a first movable bar 8a, in particular an upper movable bar. The first end 2a of the screen 2 is connected to the first movable bar 8a.

[0070] Here, the occulting device 3 further comprises a second movable bar 8b, in particular a lower movable bar. The second end 2b of the screen 2 is connected to the second movable bar 8b.

[0071] Thus, the screen 2 is arranged, in other words is configured to be deployed, between the first and second movable bars 8a, 8b. Depending on the relative position of the first and second movable bars 8a, 8b, the screen 2 is more or less deployed.

[0072] Here, the second movable bar 8b is identical to the first movable bar 8a.

[0073] Alternatively, not shown, the second movable bar 8b is different from the first movable bar 8a.

[0074] The occulting device 3 comprises a motorized drive device 5. The motorized drive device 5 is configured to drive in movement, in other words drives in movement, the screen 2.

[0075] Advantageously, the occulting device 3 further comprises a housing 7. The motorized drive device 5 is mounted, in other words is housed, in the housing 7, in particular in an assembled configuration of the occulting device 3. The housing 7 is mounted, in other words is configured to be mounted, in the upper part or above the opening, in particular in an assembled configuration of the occulting device 3 in the installation 1. The housing 7 is generally called a rail and, more particularly, an upper rail.

[0076] Advantageously, the housing 7 has a “U” shaped section. In other words, the housing 7 comprises a bottom wall 7a and two side walls 7b. Each of the side walls 7b is connected to the bottom wall 7a of the housing 7. Furthermore, each of the side walls 7b is perpendicular to the bottom wall 7a of the housing 7.

[0077] The housing 7 comprises a first end 7c and a second end 7d. The second end 7d is opposite the first end 7c.

[0078] The motorized drive device 5 comprises at least one electromechanical actuator 11.

[0079] Here, the electromechanical actuator 11 is mounted, in other words is housed, inside the housing 7, in particular in the assembled configuration of the occulting device 3.

[0080] The electromechanical actuator 11 comprises a first end 11a and a second end 11b, the second end 11b being opposite the first end 11a.

[0081] Here, in the installation 1, an upper end-of-travel position corresponds to a position in which the first movable bar 8a can no longer rise, in particular when approaching the housing 7. The upper end-of-travel position can either be predetermined or correspond to the first movable bar 8a pressing against the housing 7. Furthermore, a lower end-of-travel position corresponds to a position in which the second movable bar 8b can no longer descend, in particular when moving away from the housing 7 or from the first movable bar 8a. The lower end-of-travel position can either be predetermined or correspond to the second movable bar 8b pressing against a threshold of the opening, or correspond to the complete unrolling of the screen 2.

[0082] Advantageously, the motorized drive device 5 comprises at least one drive shaft 9a, 9b. Furthermore, the electromechanical actuator 11 is configured to drive in rotation, in other words drives in rotation, the drive shaft 9a, 9b, so as to drive in movement the, one or each of the first and second movable bars 8a, 8b.

[0083] Here, the motorized drive device 5 comprises a first drive shaft 9a and a second drive shaft 9b. Furthermore, the electromechanical actuator 11 is configured to rotate, in other words rotates, the first drive shaft 9a, so as to move the first movable bar 8a, and is configured to rotate, in other words rotates, the second drive shaft 9b, so as to move the second movable bar 8b.

[0084] Advantageously, the first and second drive shafts 9a, 9b are parallel to each other.

[0085] Here, the first and second drive shafts 9a, 9b are located on the same side of the electromechanical actuator 11, as illustrated in FIG. 1.

[0086] Advantageously, the occulting device 3 comprises a first cord 4a, a second cord 4b, a first drive arrangement 6a and a second drive arrangement 6b. The first drive arrangement 6a is configured to cooperate, in other words cooperates, with the first cord 4a. The second drive arrangement 6b is configured to cooperate, in other words cooperates, with the second cord 4b. Furthermore, the electromechanical actuator 11 is configured to drive in movement, in other words drives in movement, the first movable bar 8a via the first and second cords 4a, 4b.

[0087] Advantageously, the first drive arrangement 6a is configured to wind and unwind, in other words winds and unwinds, the first cord 4a. Furthermore, the second drive arrangement 6b is configured to wind and unwind, in other words winds and unwinds, the second cord 4b.

[0088] Thus, when the first and second cords 4a, 4b are wound by means of the first and second drive arrangements 6a, 6b, the first movable bar 8a is raised towards the housing 7. Furthermore, when the first and second cords 4a, 4b are unwound by means of the first and second drive arrangements 6a, 6b, the first movable bar 8a is lowered away from the housing 7.

[0089] Advantageously, each of the first and second cords 4a, 4b is attached to the first movable bar 8a.

[0090] Here, the occulting device 3 further comprises a third cord 4c, a fourth cord 4d, a third drive arrangement 6c and a fourth drive arrangement 6d. The third drive arrangement 6c is configured to cooperate, in other words cooperates, with the third cord 4c. Furthermore, the fourth drive arrangement 6d is configured to cooperate, in other words cooperates, with the fourth cord 4d. Furthermore, the electromechanical actuator 11 is configured to drive in movement, in other words drives in movement, the second movable bar 8b via the third and fourth cords 4c, 4d.

[0091] Advantageously, the third drive arrangement 6c is configured to wind and unwind, i.e. winds and unwinds, the third cord 4c. Furthermore, the fourth drive arrangement 6d is configured to wind and unwind, i.e. winds and unwinds, the fourth cord 4d.

[0092] Thus, when the third and fourth cords 4c, 4d are wound by means of the third and fourth drive arrangements 6c, 6d, the second movable bar 8b is raised towards the housing 7. Furthermore, when the third and fourth cords 4c, 4d are unwound by means of the third and fourth drive arrangements 6c, 6d, the second movable bar 8b is lowered away from the housing 7.

[0093] Advantageously, each of the third and fourth cords 4c, 4d is attached to the second movable bar 8b.

[0094] Thus, the first, second, third and fourth cords 4a, 4b, 4c, 4d connect the first and second drive shafts 9a, 9b to the first and second movable bars 8a, 8b.

[0095] In this way, the first, second, third and fourth cords 4a, 4b, 4c, 4d support the screen 2.

[0096] Here, the third and fourth drive arrangements 6c, 6d are respectively identical to the first and second drive arrangements 6a, 6b.

[0097] The first, second, third and fourth drive arrangements 6a, 6b, 6c, 6d may also be referred to as first, second, third and fourth winders.

[0098] Advantageously, the first, second, third and fourth drive arrangements 6a, 6b, 6c, 6d each comprise at least one pulley configured to wind or unwind one of the first, second, third and fourth cords 4a, 4b, 4c, 4d.

[0099] Advantageously, the first and second drive arrangements 6a, 6b, respectively the third and fourth drive arrangements 6c, 6d, are mounted, in other words are housed, inside the housing 7, in particular in the assembled configuration of the occulting device 3.

[0100] The drive device 5 is thus configured to drive in movement, in other words drives in movement, in particular in a vertical direction, the first and second movable bars 8a, 8b of the occulting device 3, by means of the first, second, third and fourth cords 4a, 4b, 4c, 4d, by means of the electromechanical actuator 11.

[0101] Advantageously, the first and second movable bars 8a, 8b are parallel to each other, in particular in the assembled configuration of the occulting device 3. Furthermore, the first and second drive shafts 9a, 9b are parallel to the first and second movable bars 8a, 8b, in particular in the assembled configuration of the occulting device 3.

[0102] Alternatively, not shown, the first drive shaft 9a is coupled to the second movable bar 8b and the second drive shaft 9b is coupled to the first movable bar 8a, instead of the first drive shaft 9a being coupled to the first movable bar 8a and the second drive shaft 9b being coupled to the second movable bar 8b, as explained above.

[0103] Advantageously, the motorized drive device 5 and, more particularly, the electromechanical actuator 11 is controlled by a control unit. The control unit may be, for example, a local control unit 12 or a central control unit 13.

[0104] Advantageously, the local control unit 12 can be connected, by wired or wireless connection, with the central control unit 13.

[0105] Advantageously, the central control unit 13 can control the local control unit 12, as well as other similar local control units distributed throughout the building.

[0106] The motorized drive device 5 is preferably configured to execute the movement commands, in particular deployment or retraction, of the screen 2, which can be issued, in particular, by the local control unit 12 or by the central control unit 13.

[0107] The installation 1 comprises either the local control unit 12, or the central control unit 13, or the local control unit 12 and the central control unit 13.

[0108] We will now describe, in more detail and with reference to figures 2 and 3, the motorized drive device 5, including the electromechanical actuator 11, belonging to the installation 1 and, more particularly, to the occultation device 3 illustrated in figure 1, according to the first embodiment of the invention.

[0109] The electromechanical actuator 11 comprises an electric motor 16. The electric motor 16 is represented by its casing in Figures 2 and 3, without details of its internal constituent elements.

[0110] Here, the electromechanical actuator 11 comprises a single electric motor 16.

[0111] Advantageously, the electric motor 16 of the electromechanical actuator 11 comprises a rotor 21 and a stator, not shown, positioned coaxially around an axis of rotation X16.

[0112] Advantageously, the electric motor 16 of the electromechanical actuator 11 may be of the brushless type with electronic commutation, also called “BLDC” (acronym for the English term BrushLess Direct Current) or “synchronous with permanent magnets”, or of the direct current type.

[0113] Advantageously, the rotor 21 of the electric motor 16 comprises a first end 21 a, in other words a first output, and a second end 21 b, in other words a second output. The second end 21 b is opposite the first end 21 a.

[0114] Means for controlling the electromechanical actuator 11, allowing the screen 2 to move, comprise at least one control unit 15, in particular an electronic control unit, shown in FIGS. 2 and 3.

[0115] Here, the electromechanical actuator 11 further comprises the control unit 15.

[0116] Alternatively, not shown, the control unit 15 is arranged outside the electromechanical actuator 11 and, for example, is arranged inside the housing 7. In this case, the control unit 15 is electrically connected at least to the electric motor 16 via an electrical connection.

[0117] The control unit 15 is capable of operating the electric motor 16 and, in particular, of enabling the supply of electrical energy to the electric motor 16.

[0118] Thus, the control unit 15 controls, in particular, the electric motor 16, so as to deploy or fold the screen 2 and, more particularly, so as to raise or lower the first movable bar 8a and, consequently, the upper part of the screen 2, and so as to raise or lower the second movable bar 8b and, consequently, the lower part of the screen 2.

[0119] Advantageously, the control unit 15 comprises hardware and / or software means.

[0120] By way of non-limiting example, the hardware means of the control unit 15 comprise at least one microcontroller 31.

[0121] Advantageously, the control unit 15 further comprises a first communication module 27, in particular for receiving control orders, the control orders being emitted by an order transmitter, such as the local control unit 12 or the central control unit 13, these orders being intended to control the electromechanical actuator 11.

[0122] Advantageously, the first communication module 27 is of the wireless type. In particular, the first communication module 27 is configured to receive radio control orders.

[0123] Alternatively or additionally, the first communication module 27 may allow the reception of control orders transmitted by wired means. Advantageously, the control unit 15, the local control unit 12 and / or the central control unit 13 may be in communication with a weather station, not shown, arranged inside the building or remote outside the building, including, in particular, one or more sensors that can be configured to determine, for example, a temperature, a brightness, or even a wind speed, in the case where the weather station is remote outside the building.

[0124] Advantageously, the control unit 15, the local control unit 12 and / or the central control unit 13 can also be in communication with a server 28, so as to control the motorized drive device 5 and, more particularly, the electromechanical actuator 11, according to data made available remotely via a communication network, in particular an Internet network which can be connected to the server 28.

[0125] The control unit 15 can be controlled from the local control unit

[0126] 12 or the central control unit 13. The local control unit 12 or the central control unit 13 is provided with a control keyboard. The control keyboard comprises one or more selection elements 14 and, optionally, one or more display elements 34.

[0127] By way of non-limiting examples, the selection elements may comprise push buttons and / or sensitive keys. The display elements may comprise light-emitting diodes and / or a display, for example LCD (acronym for the English term “Liquid Crystal Display”) or TFT (acronym for the English term “Thin Film Transistor”). The selection and display elements may also be implemented using a touch screen.

[0128] Advantageously, the local control unit 12 or the central control unit

[0129] 13 further comprises at least one second communication module 36.

[0130] Thus, the second communication module 36 is configured to transmit, in other words emit, control orders, in particular by wireless means, for example radioelectric, or by wired means.

[0131] Furthermore, the second communication module 36 can also be configured to receive, in other words receive, control orders, in particular via the same means.

[0132] Advantageously, the second communication module 36 of the local control unit 12 or of the central control unit 13 is configured to communicate, in other words communicates, with the first communication module 27 of the control unit 15. Thus, the second communication module 36 of the local control unit 12 or of the central control unit 13 exchanges control commands with the first communication module 27 of the control unit 15, either in a unidirectional manner or in a bidirectional manner.

[0133] Advantageously, the local control unit 12 is a control point, which may be fixed or mobile. A fixed control point may be a control box intended to be fixed to a facade of a wall of the building or to a face of a fixed frame of a window or door. A mobile control point may be a remote control, a smartphone or a tablet.

[0134] Advantageously, the local control unit 12 or the central control unit 13 further comprises a controller 35.

[0135] The motorized drive device 5, in particular the control unit 15, is preferably configured to execute movement control orders, in particular for folding and unfolding, of the screen 2. These control orders can be issued, in particular, by the local control unit 12 or by the central control unit 13.

[0136] The motorized drive device 5 can be controlled by the user, for example by receiving a control command corresponding to pressing the or one of the selection elements 14 of the local control unit 12 or of the central control unit 13.

[0137] The motorized drive device 5 can also be controlled automatically, for example by receiving a control command corresponding to at least one signal from at least one sensor, not shown, and / or a signal from a clock, not shown, of the control unit 15, in particular the microcontroller. The sensor and / or the clock can be integrated, alternatively, into the local control unit 12 or the central control unit 13.

[0138] The electromechanical actuator 11 further comprises a casing 17, in particular of parallelepipedal shape.

[0139] Advantageously, the electric motor 16 is mounted, in other words is housed, inside the casing 17, in particular in an assembled configuration of the electromechanical actuator 11.

[0140] The casing 17 comprises a first end 17a and a second end 17b, the second end 17b being opposite the first end 17a.

[0141] The first end 17a of the casing 17 is oriented towards the first end 11a of the electromechanical actuator 11, while the second end 17b of the casing 17 is oriented towards the second end 11b of the electromechanical actuator 11. The viewing angles of figures 1 and 2 are opposite.

[0142] Here, the casing 17 is made of a plastic material.

[0143] The material of the casing is not limiting and can be different. It can be, in particular, a metallic material.

[0144] Advantageously, the casing 17 comprises a base 17c and a cover 17d, which is shown only in FIG. 1. Furthermore, the cover 17d is fixed, in other words is configured to be fixed, on the base 17c by means of fixing elements, not shown, in particular in the assembled configuration of the electromechanical actuator 11.

[0145] Here, the fixing elements are fixing screws, in particular six in number. The fixing screws pass through through holes, not shown, provided in the cover 17d and are screwed into screw holes 18 provided in the base 17c. The number of through holes and the number of screw holes are equal to the number of fixing screws. Only three screw holes 18 are visible in Figure 2 and only four screw holes 18 are visible in Figure 3.

[0146] The type and number of fastening elements are not limiting and may be different. They may be, for example, elastic snap-on fastening elements or a combination of different fastening elements, in particular screw-on and elastic snap-on fastening elements.

[0147] Here, the control unit 15 comprises a first and a second electronic card 30.

[0148] Advantageously, each of the first and second electronic cards 30 is mounted, in other words is housed, inside the casing 17, in particular in the assembled configuration of the electromechanical actuator 11.

[0149] Advantageously, the first electronic card 30 is configured to control the electric motor 16. In addition, the second electronic card is configured to, in particular, access parameterization and / or configuration functions of the electromechanical actuator 11, by means of selection and, possibly, display devices, not shown. In addition, the second electronic card 30 is configured to allow the recharging of a battery 24.

[0150] As a variant, not shown, the control unit 15 comprises a single electronic card 30. Advantageously, the electronic card 30 is mounted, in other words is housed, inside the casing 17, in particular in the assembled configuration of the electromechanical actuator 11.

[0151] Advantageously, the electromechanical actuator 11 is supplied with electrical energy by an electrical energy supply source.

[0152] Advantageously, the source of electrical energy supply is the battery 24. The battery 24 is represented by its casing in FIG. 1, without details on its internal constituent elements.

[0153] Thus, the battery 24 is configured to supply electrical energy, in other words supplies electrical energy, to the electromechanical actuator 11 and, more particularly, to the electric motor 16, as well as to the control unit 15.

[0154] Advantageously, the battery 24 is mounted, in other words is housed, inside the housing 7, in particular in the assembled configuration of the concealing device 3.

[0155] Here, the motorized drive device 5 further comprises the battery 24.

[0156] As a variant, not shown, the battery 24 is mounted, in other words is housed, in the casing 17, in particular in the assembled configuration of the electromechanical actuator 11, which itself is mounted inside the housing 7, in particular in the assembled configuration of the occulting device 3.

[0157] In another variant, not shown, the battery 24 is mounted outside the housing 7, in particular in the assembled configuration of the concealing device 3. In this case, the battery 24 can be fixed against one of the side walls 7b of the housing 7, in particular by means of at least one fixing element, such as, for example, at least one holding support, while being arranged outside the housing 7.

[0158] Advantageously, the battery 24 comprises one or more electrical energy storage elements, not shown. The electrical energy storage elements may be, in particular, accumulators, in the case where the battery 24 is of the rechargeable type, or even batteries.

[0159] Advantageously, the control unit 15 comprises charging elements configured to charge the battery 24 from the electrical energy supplied by an external electrical energy supply source, not shown. The charging elements comprise, at least, one electrical connector, not shown, in the case where the battery 24 is of the rechargeable type. The external electrical energy supply source is configured to be electrically connected to the electrical connector, via an electrical power supply cable, not shown.

[0160] Advantageously, the external electrical power supply source is a charger, which can be plugged into a wall electrical outlet, so as to recharge the battery 24, from an electrical power supply network, in particular from the mains.

[0161] Alternatively, the external electrical power source may be an auxiliary battery or a photovoltaic panel.

[0162] Alternatively, not shown, the electrical power supply source is an electrical power supply network, in particular from the mains or known as “PoE” (acronym for the English term Power over Ethernet). In this case, the motorized drive device 5 further comprises a transformer, in addition to or as a replacement for the battery 24.

[0163] Here, the control unit 15 comprises a first and a second electronic card 30.

[0164] Advantageously, each of the first and second electronic cards 30 is mounted, in other words is housed, inside the casing 17, in particular in the assembled configuration of the electromechanical actuator 11.

[0165] Advantageously, the first electronic card 30 is configured to control the electric motor 16. In addition, the second electronic card is configured to, in particular, access parameterization and / or configuration functions of the electromechanical actuator 11, by means of selection and, possibly, display devices, not shown. In addition, the second electronic card 30 is configured to allow the battery 24 to be recharged.

[0166] Advantageously, the motorized drive device 5 further comprises an electrical power supply cable, not shown.

[0167] Thus, the power supply cable makes it possible to supply electrical energy to the electromechanical actuator 1 1 from the electrical energy supply source.

[0168] Advantageously, the electrical power cable comprises at least one electrical connector, not shown, in particular one at each of its ends or just one at one of its ends.

[0169] Here, the electrical power supply cable is a ribbon cable provided with electrical connectors, in particular of the RJ45 type (acronym for the Anglo-Saxon term “Registered Jack”), in the case where the electromechanical actuator 11 is supplied with electrical energy from the battery 24 or, possibly, from an electrical energy supply network called “PoE”.

[0170] Alternatively, not shown, the electrical power supply cable is a cord, in the case where the electromechanical actuator 11 is supplied with electrical energy from a mains power supply network, which may have, for example, a supply voltage of 110 Volts or 230 Volts.

[0171] Advantageously, the electromechanical actuator 11 is arranged at the first end 7c of the housing 7. The battery 24 and / or the transformer is arranged at the second end 7d of the housing 7. Furthermore, the electromechanical actuator 11 is electrically connected to the battery 24 or to the transformer via the electrical power supply cable.

[0172] The electromechanical actuator 11 further comprises at least one coupling element 20a, 20b, in other words an output shaft. Here, the electromechanical actuator 11 comprises a first coupling element 20a, in other words a first output shaft, and a second coupling element 20b, in other words a second output shaft.

[0173] Thus, the electromechanical actuator 11 is a two-output electromechanical actuator.

[0174] Advantageously, the first and second coupling elements 20a, 20b are arranged at the first end 11a of the electromechanical actuator 11.

[0175] Thus, the two outputs of the electromechanical actuator 11 are arranged on the same side of the electromechanical actuator 11, in particular of the casing 17.

[0176] Furthermore, the first and second drive shafts 9a, 9b are arranged on the same side of the electromechanical actuator 11 as the first and second coupling elements 20a, 20b.

[0177] Advantageously, the first coupling element 20a is rotatable, about a first axis of rotation Xa, inside the housing 7. The second coupling element 20b is rotatable, about a second axis of rotation Xb, inside the housing 7. The first drive shaft 9a is integral with the first coupling element 20a in rotation, about the first axis of rotation Xa. Furthermore, the second drive shaft 9b is integral with the second coupling element 20b in rotation, about the second axis of rotation Xb.

[0178] Thus, the electric motor 16 is configured to drive in rotation, in other words drives in rotation, on the one hand, the first coupling element 20a, so as to drive in rotation the first drive shaft 9a, and, on the other hand, the second coupling element 20b, so as to drive in rotation the second drive shaft 9b.

[0179] Here, the first and second coupling elements 20a, 20b are arranged on the same side of the electric motor 16.

[0180] Here, the first and second coupling elements 20a, 20b are identical.

[0181] Advantageously, the first and second axes of rotation Xa, Xb are arranged in the same horizontal plane P. In this case, the plane P is parallel to the lower wall 7a of the housing 7.

[0182] Alternatively, not shown, the first and second axes of rotation Xa, Xb are arranged in the same vertical plane. In this case, the plane is perpendicular to the lower wall 7a of the housing 7.

[0183] In another variant, not shown, the first and second axes of rotation Xa, Xb are arranged in a staggered manner along an oblique plane. In this case, the plane is inclined relative to the lower wall 7a of the housing 7 by a value between 0° and 90° or between 90° and 180°.

[0184] Regardless of the position of the first and second axes of rotation Xa, Xb relative to the housing 7, the first and second drive shafts 9a, 9b are arranged in the same arrangement as the first and second coupling elements 20a, 20b relative to the housing 7.

[0185] The electromechanical actuator 11 further comprises at least one reducer 19a, 19b.

[0186] Here, the electromechanical actuator 11 comprises a first reducer 19a and a second reducer 19b. Each of the first and second reducers 19a, 19b is represented by its casing in Figures 2 and 3, in particular by means of a housing common to the first and second reducers 19a, 19b, without details on its internal constituent elements.

[0187] Each of the first and second reducers 19a, 19b comprises at least one reduction stage. The reduction stage may be, for example, an epicyclic type gear train.

[0188] The type and number of reduction stages of each of the first and second reducers are not limiting. The number of reduction stages can be, for example, three, but also two or four.

[0189] Advantageously, the first reducer 19a is configured to transmit, in other words transmits, a movement generated by the electric motor 16 to the first coupling element 20a, then to the first drive shaft 9a. Furthermore, the second reducer 19b is configured to transmit a movement generated by the electric motor 16 to the second coupling element 20b, then to the second drive shaft 9b.

[0190] Each of the first and second reducers 19a, 19b comprises an input shaft and an output shaft, not shown.

[0191] Advantageously, the first and second reducers 19a, 19b are mounted, in other words are housed, inside the casing 17, in particular in the assembled configuration of the electromechanical actuator 11.

[0192] Here, the first and second reducers 19a, 19b are identical.

[0193] Advantageously, the electromechanical actuator 11 further comprises at least one clutch 23a, 23b.

[0194] Here, the electromechanical actuator 11 comprises a first clutch 23a and a second clutch 23b. Each of the first and second clutches 23a, 23b is represented by its casing in FIGS. 2 and 3, without details on its internal constituent elements. Advantageously, the first clutch 23a is configured to be engaged or disengaged, in other words is engaged or disengaged, so as to secure or disengage, in rotation at least, the first coupling element 20a and, consequently, the first drive shaft 9a relative to the electric motor 16, in particular to the first end 21a of the rotor 21 of the electric motor 16.Furthermore, the second clutch 23b is configured to be engaged or disengaged, in other words is engaged or disengaged, so as to secure or disengage, in rotation at least, the second coupling element 20b and, consequently, the second drive shaft 9b relative to the electric motor 16, in particular to the first end 21a of the rotor 21 of the electric motor 16.

[0195] Thus, each of the first and second clutches 23a, 23b is configured to be switched into either an engaged position or a disengaged position.

[0196] Advantageously, the engagement and disengagement of the first and second clutches 23a, 23b is controlled by the control unit 15.

[0197] Advantageously, each of the first and second clutches 23a, 23b comprises an input shaft 25 and an output shaft, not shown.

[0198] By "engaging" is meant the implementation of a clutch, at each of the first and second clutches 23a, 23b, to mechanically couple its input shaft 25 and its output shaft and transmit a rotational movement between this input shaft 25 and this output shaft.

[0199] By "disengage" is meant the implementation of a disengagement, at the level of each of the first and second clutches 23a, 23b, to decouple its input shaft 25 and its output shaft and not transmit movement between this input shaft 25 and this output shaft.

[0200] Advantageously, when the electric motor 16 is electrically activated and only one of the first and second clutches 23a, 23b is engaged, only one of the first and second coupling elements 20a, 20b and, consequently, only one of the first and second drive shafts 9a, 9b is rotated by the electric motor 16. Furthermore, when the electric motor 16 is electrically activated and the first and second clutches 23a, 23b are engaged, the first and second coupling elements 20a, 20b and, consequently, the first and second drive shafts 9a, 9b are rotated by the electric motor 16.

[0201] Thus, the first clutch 23a makes it possible to produce a first transmission, in other words a first mechanical connection, between the electric motor 16 and the first coupling element 20a and, consequently, the first drive shaft 9a. Furthermore, the second clutch 23b makes it possible to produce a second transmission, in other words a second mechanical connection, between the electric motor 16 and the second coupling element 20b and, consequently, the second drive shaft 9b.

[0202] Advantageously, each of the first and second clutches 23a, 23b is of the monostable type or of the bistable type.

[0203] Here, each of the first and second clutches 23a, 23b is a friction clutch, in other words an adhesion clutch.

[0204] The type of each of the first and second clutches is not limiting and may be different. It may be, for example, a dog clutch.

[0205] Advantageously, the first and second clutches 23a, 23b are mounted, in other words are housed, inside the casing 17, in particular in the assembled configuration of the electromechanical actuator 11.

[0206] Here, the first and second clutches 23a, 23b are identical.

[0207] Advantageously, the electromechanical actuator 11 further comprises at least one brake 29a, 29b.

[0208] Here, the electromechanical actuator 11 comprises a first brake 29a and a second brake 29b, shown in Figure 3.

[0209] By way of non-limiting examples, each of the first and second brakes may be a spring brake, a cam brake, a magnetic brake or an electromagnetic brake.

[0210] Advantageously, the first brake 29a is configured to brake and / or to block in rotation, in other words brakes and / or blocks in rotation, the first coupling element 20a and, consequently, the first drive shaft 9a, so as to regulate the speed of movement of the first movable bar 8a, during a movement of the screen 2, and to hold the first movable bar 8a in position, when the electromechanical actuator 11 is electrically deactivated and / or when the first clutch 23a is disengaged.Furthermore, the second brake 29b is configured to brake and / or to block in rotation, in other words brakes and / or blocks in rotation, the second coupling element 20b and, consequently, the second drive shaft 9b, so as to respectively regulate the speed of movement of the second movable bar 8b, during a movement of the screen 2, and to hold the second movable bar 8b in position, when the electromechanical actuator 11 is electrically deactivated and / or when the second clutch 23b is disengaged.

[0211] Here, the first brake 29a is configured to be arranged, in other words is arranged, in particular in the assembled configuration of the electromechanical actuator 11, between the first reducer 19a and the first coupling element 20a, in other words at the output of the first reducer 19a. Furthermore, the second brake 29b is configured to be arranged, in other words is arranged, in particular in the assembled configuration of the electromechanical actuator 11, between the second reducer 19b and the second coupling element 20b, in other words at the output of the second reducer 19b.

[0212] Alternatively, not shown, each of the first and second brakes 29a, 29b is respectively configured to be arranged, in other words is respectively arranged, in particular in the assembled configuration of the electromechanical actuator 11:

[0213] - between two reduction stages of the first reducer 19a, or between two reduction stages of the second reducer 19b, or

[0214] - between the first clutch 23a and the first reducer 19a, in other words at the output of the first clutch 23a, or between the second clutch 23b and the second reducer 19b, in other words at the output of the second clutch 23b.

[0215] Advantageously, the first and second brakes 29a, 29b are mounted, in other words are housed, inside the casing 17, in particular in the assembled configuration of the electromechanical actuator 11.

[0216] Here, the first and second brakes 29a, 29b are identical.

[0217] Advantageously, the first reducer 19a is connected, in other words is configured to be connected, to the rotor 21 of the electric motor 16, via the first clutch 23a, in particular in the assembled configuration of the electromechanical actuator 11. Furthermore, the second reducer 19b is connected, in other words is configured to be connected, to the rotor 21 of the electric motor 16, via the second clutch 23b, in particular in the assembled configuration of the electromechanical actuator 11.

[0218] Advantageously, the electromechanical actuator 11 further comprises an end-of-travel and / or obstacle detection device, which may be mechanical or electronic.

[0219] Advantageously, the end-of-travel and / or obstacle detection device of the electromechanical actuator 11 is implemented by means of the microcontroller 31 of the control unit 15 and, in particular, by means of an algorithm implemented by this microcontroller 31.

[0220] Advantageously, the end-of-travel and / or obstacle detection device of the electromechanical actuator 11 is implemented by means of a measurement of a current passing through the electric motor 16.

[0221] Advantageously, the electromechanical actuator 11 further comprises at least one counting device 32a, 32b.

[0222] Here, the electromechanical actuator 11 comprises a first counting device 32a and a second counting device 32b. Each of the first and second counting devices 32a, 32b is represented by its casing in Figures 2 and 3, without details on its internal constituent elements. The first counting device 32a and the first clutch 23a are housed inside the same housing. Similarly, the second counting device 32b and the second clutch 23b are housed inside the same housing.

[0223] Each of the first and second counting devices 32a, 32b is configured to cooperate, i.e. cooperates, with the control unit 15. Furthermore, each of the first and second counting devices 32a, 32b is configured to, in cooperation with the control unit 15, respectively determine a position, which can be called "current", of the first drive shaft 9a or the second drive shaft 9b and, consequently, of the first movable bar 8a or the second movable bar 8b.

[0224] Advantageously, the control unit 15 is configured to monitor at least one signal coming from each of the first and second counting devices 32a, 32b at a predetermined frequency, in particular as a function of the position of the first movable bar 8a or the second movable bar 8b.

[0225] Here, each of the first and second counting devices 32a, 32b is of the magnetic type.

[0226] In such a case, each of the first and second counting devices 32a, 32b may comprise a code wheel, not shown, and one or more sensors, not shown, in particular Hall effect sensors. The code wheel of each of the first and second counting devices 32a, 32b is connected to the output shaft of the first clutch 23a or of the second clutch 23b. Furthermore, the or each sensor is assembled on an electronic card of the control unit 15, in particular on a second electronic card, not shown.

[0227] Thus, each of the first and second counting devices 32a, 32b makes it possible respectively to determine the number of revolutions made by the output shaft of the first clutch 23a or of the second clutch 23b.

[0228] Here, each of the first and second counting devices 32a, 32b comprises three sensors.

[0229] The number of sensors is not limited and can be different. It can be, for example, one or two.

[0230] Alternatively, not shown, each of the first and second counting devices 32a, 32b may be devoid of sensors. In this case, the first and second counting devices 32a, 32b are configured to, in cooperation with the control unit 15, analyze the electrical power supply control signals of the electric motor 16 and respectively determine a position, which may be called “current,” of the first drive shaft 9a or the second drive shaft 9b and, consequently, of the first movable bar 8a or the second movable bar 8b.

[0231] As a variant, not shown, each of the first and second counting devices 32a, 32b makes it possible respectively to determine the number of revolutions made by the output shaft of the first reducer 19a or of the second reducer 19b.

[0232] In another variant, not shown, each of the first and second counting devices 32a, 32b makes it possible respectively to determine the number of revolutions made by the first coupling element 20a or the second coupling element 20b.

[0233] Each of the first and second counting devices 32a, 32b also makes it possible respectively to determine the direction of rotation of the first coupling element 20a or of the second coupling element 20b and / or to manage the end-of-travel positions of the first movable bar 8a or of the second movable bar 8b.

[0234] The type of each of the first and second counting devices is not limiting and may be different. Each of these first and second counting devices may, in particular, be of the optical type, for example an encoder equipped with one or more optical sensors, or of the time type.

[0235] Here, the first and second counting devices 32a, 32b are identical.

[0236] Here, the first counting device 32a is arranged, in other words is configured to be arranged, in particular in the assembled configuration of the electromechanical actuator 11, between the first clutch 23a and the first reduction gear 19a. Furthermore, the second counting device 32b is arranged, in other words is configured to be arranged, in particular in the assembled configuration of the electromechanical actuator 11, between the second clutch 23b and the second reduction gear 19b.

[0237] Alternatively, not shown, the first counting device 32a is arranged, in other words is configured to be arranged, in particular in the assembled configuration of the electromechanical actuator 11, inside the first clutch 23a. Furthermore, the second counting device 32b is arranged, in other words is configured to be arranged, in particular in the assembled configuration of the electromechanical actuator 11, inside the second clutch 23b.

[0238] In another variant, not shown, the first counting device 32a is arranged, in other words is configured to be arranged, in particular in the assembled configuration of the electromechanical actuator 11, inside the first reducer 19a. Furthermore, the second counting device 32b is arranged, in other words is configured to be arranged, in particular in the assembled configuration of the electromechanical actuator 11, inside the second reducer 19b.

[0239] The electromechanical actuator 11 comprises at least one torque transmission device 10a, 10b.

[0240] Here, the electromechanical actuator 11 comprises a first torque transmission device 10a and a second torque transmission device 10b. The first torque transmission device 10a is connected, on the one hand, to the electric motor 16, in particular by means of the first reduction gear 19a and the first clutch 23a, and, on the other hand, to the first drive shaft 9a, in particular by means of the first coupling element 20a. Furthermore, the second torque transmission device 10b is connected, on the one hand, to the electric motor 16, in particular by means of the second reduction gear 19b and the second clutch 23b, and, on the other hand, to the second drive shaft 9b, in particular by means of the second coupling element 20b.

[0241] Here, the first reducer 19a, in particular the output shaft of the first reducer 19a, is coupled, i.e. is configured to be coupled, in particular in the assembled configuration of the electromechanical actuator 11, with the first coupling element 20a via the first torque transmission device 10a. Furthermore, the second reducer 19b, in particular the output shaft of the second reducer 19b, is coupled, i.e. is configured to be coupled, in particular in the assembled configuration of the electromechanical actuator 11, with the second coupling element 20b via the second torque transmission device 10b.

[0242] Advantageously, the first and second torque transmission devices 10a, 10b are mounted, in other words are housed, inside the casing 17, in particular in the assembled configuration of the electromechanical actuator 11.

[0243] Here, the first and second torque transmission devices 10a, 10b are identical.

[0244] Alternatively, not shown, the first and second torque transmission devices 10a, 10b are different.

[0245] Advantageously, the electromechanical actuator 11 further comprises a coupling device 33, shown in FIGS. 2 and 3.

[0246] Advantageously, the coupling device 33 comprises a plurality of pinions 37, in particular four in number.

[0247] The number of pinions of the coupling device is not limiting and may be different, preferably even. It may be, for example, two or six. Advantageously, the coupling device 33 further comprises an input shaft, which is connected to the first end 21a of the rotor 21, and two output shafts, which are respectively connected to the input shaft 25 of one of the first and second clutches 23a, 23b.

[0248] Advantageously, the first end 21a of the rotor 21 of the electric motor 16 is connected directly to the first clutch 23a. Furthermore, the first end 21a of the rotor 21 of the electric motor 16 is connected to the second clutch 23b via the coupling device 33.

[0249] Here, the coupling device 33 is mounted, in other words is housed, in particular in the assembled configuration of the electromechanical actuator 11, inside the casing 17.

[0250] Here, the coupling device 33 is arranged between the electric motor 16, in particular the first end 21a of the rotor 21 of the electric motor 16, and the first and second clutches 23a, 23b, in particular the input shaft of each of the first and second clutches 23a, 23b.

[0251] Alternatively, not shown, the coupling device 33 is mounted, in other words is housed, in particular in the assembled configuration of the concealing device 3, inside the housing 7, while being arranged outside the casing 17. In this case, the coupling device 33 can be arranged at the second end 7b of the housing 7.

[0252] Advantageously, the coupling device 33 has a ratio of one, i.e. neither reduction nor amplification of a rotation speed of the rotor 21 of the electric motor 16.

[0253] Advantageously, a first set 22 of a first part of the members 10a, 10b, 15, 16, 19a, 19b, 20a, 20b, 23a, 23b, 29a, 29b, 32a, 32b of the electromechanical actuator 11 are aligned along a first axis of rotation Xa and a second set 26 of a second part of the members 10a, 10b, 15, 16, 19a, 19b, 20a, 20b, 23a, 23b, 29a, 29b, 32a, 32b of the electromechanical actuator 11 are aligned along a second axis of rotation Xb. Furthermore, the first and second axes of rotation Xa, Xb are parallel.

[0254] Advantageously, the first assembly 22 comprises the first clutch 23a, the first counting device 32a, the first reduction gear 19a, the first brake 29a and the first coupling element 20a. Furthermore, the second assembly 26 comprises the second clutch 23b, the second counting device 32b, the second reduction gear 19b, the second brake 29b and the second coupling element 20b. Here, the electric motor 16 is an integral part of the first assembly 22 and is also aligned along the first axis of rotation Xa.

[0255] Alternatively, not shown, the electric motor 16 is an integral part of the second assembly 26 and is also aligned along the second axis of rotation Xb.

[0256] Alternatively, not shown, the coupling device 33 comprises an input shaft, which is connected to the second end 21b of the rotor 21, and an output shaft, which is connected to the input shaft 25 of one of the first and second clutches 23a, 23b. The first end 21a of the rotor 21 of the electric motor 16 is connected directly to the first clutch 23a. Furthermore, the second end 21b of the rotor 21 of the electric motor 16 is connected to the second clutch 23b via the coupling device 33. In this case, the electromechanical actuator 11 may further comprise a connecting shaft.Furthermore, in particular in the assembled configuration of the electromechanical actuator 11, the connecting shaft is coupled, in other words is configured to be coupled, on the one hand, to the coupling device 33, in particular to the output shaft of the coupling device 33, and, on the other hand, to the second clutch 23b, in particular to the input shaft 25 of the second clutch 23b. Advantageously, the connecting shaft is a rigid shaft. Advantageously, the electromechanical actuator 11 further comprises at least a first universal joint and a second universal joint. The coupling device 33 is assembled, in particular in the assembled configuration of the electromechanical actuator 11, with the connecting shaft by means of the first universal joint. Furthermore, the second clutch 23b is assembled, in particular in the assembled configuration of the electromechanical actuator 11, with the connecting shaft by means of the second cardan joint.Thus, the first and second universal joints make it possible to guarantee a transmission of torque between the coupling device 33 and the second clutch 23b via the connecting shaft, while accommodating the positioning dispersions between the output shaft of the coupling device 33 and the input shaft 25 of the second clutch 23b. Advantageously, along the second axis of rotation Xb, at least a portion of the control unit 15 is arranged between the coupling device 33 and the second clutch 23b, in particular in the assembled configuration of the electromechanical actuator 11. Furthermore, the connecting shaft extends, along the second axis of rotation Xb, through a zone of the electromechanical actuator 11 comprising the control unit 15. This zone of the electromechanical actuator 11 is defined, along the second axis of rotation Xb, between the coupling device 33 and the second clutch 23b.

[0257] A movement generated by the electric motor 16 is transmitted to the first drive shaft 9a, via the first clutch 23a, the first reduction gear 19a and the first coupling element 20a, if the first clutch 23a is in the engaged position. This same movement generated by the electric motor 16 is also transmitted to the second drive shaft 9b, via the coupling device 33, the second clutch 23b, the second reduction gear 19a and the second coupling element 20a, if the second clutch 23b is in the engaged position.

[0258] Thus the electromechanical actuator 11 makes it possible, using this single electric motor 16 and the control unit 15, to drive the screen 2 according to several possibilities.

[0259] When the first and second clutches 23a, 23b are in the engaged position and the electric motor 16 is electrically activated, the movement generated by the electric motor 16 is transmitted to the first and second drive shafts 9a, 9b, which are then rotated respectively about the first and second axes of rotation Xa, Xb. In this case, the first and second movable bars 8a, 8b simultaneously perform the same vertical movement. This makes it possible to choose the position of a zone for obscuring the opening.

[0260] When only the first clutch 23a is in the engaged position and the electric motor 16 is electrically activated, the movement generated by the electric motor 16 is transmitted only to the first drive shaft 9a. In this case, only the first movable bar 8a moves vertically, while the second movable bar 8b remains in position, i.e. is stationary. Thus, it is the height of the occultation zone which is modified relative to the opening.

[0261] Similarly, when only the second clutch 23b is in the engaged position and the electric motor 16 is electrically activated, the movement generated by the electric motor 16 is transmitted only to the second drive shaft 9b. In this case, only the second movable bar 8b moves vertically, while the first movable bar 8a remains in position, i.e. is stationary. Thus, it is the height of the occultation zone which is modified relative to the opening.

[0262] The first and second movable bars 8a, 8b can therefore be moved vertically by the electromechanical actuator 11 separately or simultaneously.

[0263] The first torque transmission device 10a and the second torque transmission device 10b belonging to the electromechanical actuator 11 illustrated in FIGS. 1 to 3, according to the first embodiment of the invention, are now described in more detail and with reference to FIGS. 4 and 5.

[0264] Each of the first and second torque transmission devices 10a, 10b respectively comprises a transmission shaft 38, a first pin 39 and a second pin 40. The transmission shaft 38 comprises a first end 38a and a second end 38b. The second end 38b is opposite the first end 38a.

[0265] The first pin 39 comprises a first end 39a and a second end 39b. The second end 39b is opposite the first end 39a.

[0266] The second pin 40 comprises a first end 40a and a second end 40b. The second end 40b is opposite the first end 40a.

[0267] Advantageously, the transmission shaft 38 is made of a metallic material. In addition, the first and second pins 39, 40 are made of a metallic material.

[0268] The transmission shaft 38 further comprises a first opening 41 and a second opening 42.

[0269] The first opening 41 is provided at the first end 38a of the transmission shaft 38. The first pin 39 is housed, in other words is mounted, inside the first opening 41, in particular in an assembled configuration of the first torque transmission device 10a, respectively of the second torque transmission device 10b.

[0270] The second opening 42 is provided at the second end 38b of the transmission shaft 38. The second pin 40 is housed, in other words is mounted, inside the second opening 42, in particular in the assembled configuration of the first torque transmission device 10a, respectively of the second torque transmission device 10b.

[0271] Advantageously, the first pin 39 is fixed, in other words is configured to be fixed, inside the first opening 41 of the transmission shaft 38 and the second pin 40 is fixed inside the second opening 42 of the transmission shaft 38, in particular in the assembled configuration of the first torque transmission device 10a, respectively of the second torque transmission device 10b.

[0272] Here, the first pin 39 is crimped, i.e. is configured to be crimped, inside the first opening 41 of the transmission shaft 38 and the second pin 40 is crimped, i.e. is configured to be crimped, inside the second opening 42 of the transmission shaft 38, in particular in the assembled configuration of the first torque transmission device 10a, respectively of the second torque transmission device 10b.

[0273] Advantageously, each of the first and second openings 41, 42 of the transmission shaft 38 is a through hole of circular section. Advantageously, the first pin 39 has a first longitudinal axis X39 and the second pin 40 has a second longitudinal axis X40. Furthermore, the first longitudinal axis X39 and the second longitudinal axis X40 are arranged in the same plane P10.

[0274] Thus, the first and second pins 39, 40 have the same angular position within the first torque transmission device 10a, respectively the second torque transmission device 10b.

[0275] In this way, this angular positioning of the first and second pins 39, 40 makes it possible to guarantee homokinetic operation of the first torque transmission device 10a, respectively of the second torque transmission device 10b, in other words the rotation speeds of the output shaft of the first reducer 19a, respectively of the output shaft of the second reducer 19b, and of the first coupling element 20a, respectively of the second coupling element 20b, are the same at all times, although these are not aligned.

[0276] The first reducer 19a comprises a first housing 43. The first coupling element 20a comprises a second housing 44. The first end 38a of the transmission shaft 38 of the first torque transmission device 10a is arranged, in other words is configured to be arranged, in particular in the assembled configuration of the electromechanical actuator 11, inside the first housing 43 of the first reducer 19a. Furthermore, the second end 38b of the transmission shaft 38 of the first torque transmission device 10a is arranged, in other words is configured to be arranged, in particular in the assembled configuration of the electromechanical actuator 11, inside the second housing 44 of the first coupling element 20a. Likewise, the second reducer 19b comprises a first housing 43. The second coupling element 20b comprises a second housing 44.The first end 38a of the transmission shaft 38 of the second torque transmission device 10b is arranged, in other words is configured to be arranged, in particular in the assembled configuration of the electromechanical actuator 11, inside the first housing 43 of the second reducer 19b. Furthermore, the second end 38b of the transmission shaft 38 of the second torque transmission device 10b is arranged, in other words is configured to be arranged, in particular in the assembled configuration of the electromechanical actuator 11, inside the second housing 44 of the second coupling element 20b.

[0277] X10a and X10b are respectively the axes of rotation, which can also be called second axes of rotation, of the first torque transmission device 10a and of the second torque transmission device 10b. Each axis of rotation X10a, X10b is the axis of rotation of the first housing 43 of the first or second reducer 19a, 19b.

[0278] X20a and X20b are respectively the axes of rotation, which may also be called first axes of rotation, of the first coupling element 20a and of the second coupling element 20b. Each axis of rotation X20a, X20b is the axis of rotation of the second housing 44 of the first or second coupling element 20a, 20b.

[0279] Here, the first and second axes of rotation Xa, Xb of the first and second drive shafts 9a, 9b coincide with the axes of rotation X20a, X20b of the first and second coupling elements 20a, 20b.

[0280] Thus, this construction of the electromechanical actuator 11 makes it possible to transmit, in other words is configured to transmit, from the electric motor 16, a torque, in particular a large torque, to the first coupling element 20a, through the first torque transmission device 10a, when the rotation axis X10a of the first torque transmission device 10a and the rotation axis X20a of the first coupling element 20a are offset. This construction of the electromechanical actuator 11 also makes it possible to transmit, in other words is configured to transmit, from the electric motor 16, a torque, in particular a large torque, to the second coupling element 20b, through the second torque transmission device 10b, when the rotation axis X10b of the second torque transmission device 10b and the rotation axis X20b of the second coupling element 20b are offset.

[0281] Here and as illustrated in Figure 3, a first offset value D1 between the rotation axis X10a of the first torque transmission device 10a and the rotation axis X20a of the first coupling element 20a is different from a second offset value D2 between the rotation axis X10b of the second torque transmission device 10b and the rotation axis X20b of the second coupling element 20b. Advantageously, these offset values ​​D1, D2 are measured in the plane P.

[0282] Thus, the difference between, on the one hand, the first offset value D1 of the rotation axis X10a of the first torque transmission device 10a relative to the rotation axis X20a of the first coupling element 20a and, on the other hand, the second offset value D2 of the rotation axis X10b of the second torque transmission device 10b relative to the rotation axis X20b of the second coupling element 20b allows the electromechanical actuator 11 to be adapted to different dimensions of the housing 7, in particular the width L thereof.

[0283] Indeed, the spacing between the first and second axes Xa, Xb, on which the axes X20a, X20b of the first and second coupling elements 20a, 20b are respectively aligned, can vary as a function of the dimensions of the housing 7, in particular the width L thereof, whereas the spacing between the axes X1 Oa, X1 Ob of the first and second torque transmission devices 10a, 10b remains constant, regardless of the housing 7 in which the electromechanical actuator 11 is installed.

[0284] As a variant, not shown, in the assembled configuration of the occulting device 3, the first offset value D1 between the axis of rotation X10a of the first torque transmission device 10a and the axis of rotation X20a of the first coupling element 20a is equal to the second offset value D2 between the axis of rotation X10b of the second torque transmission device 10b and the axis of rotation X20b of the second coupling element 20b.

[0285] Advantageously, each of the first and second ends 38a, 38b of the transmission shaft 38 of the first torque transmission device 10a, respectively of the second torque transmission device 10b, is of spherical shape, in particular convex. Furthermore, the first housing 43 of the first reducer 19a, respectively of the second reducer 19b, and the second housing 44 of the first coupling element 20a, respectively of the second coupling element 20b, have a shape of revolution, respectively around the axes of rotation X10a, X10b, X20a, X20b, in particular concave.

[0286] Here, the first reducer 19a further comprises a first interface element 45a. Furthermore, the second reducer 19b further comprises a second interface element 45b.

[0287] Advantageously, the first housing 43 of the first reducer 19a is arranged inside the first interface element 45a. Furthermore, the first housing 43 of the second reducer 19b is arranged inside the second interface element 45b.

[0288] Advantageously, the first torque transmission device 10a, respectively the second torque transmission device 10b, further comprises a first transmission element 50 and a second transmission element 51.

[0289] Advantageously, the first transmission element 50 of the first torque transmission device 10a, respectively of the second torque transmission device 10b, is fixed, in other words is configured to be fixed, in particular in the assembled configuration of the electromechanical actuator 11, on the first pin 39 of the first torque transmission device 10a, respectively of the second torque transmission device 10b. Furthermore, the second transmission element 51 of the first torque transmission device 10a, respectively of the second torque transmission device 10b, is fixed, in other words is configured to be fixed, in particular in the assembled configuration of the electromechanical actuator 11, on the second pin 40 of the first torque transmission device 10a, respectively of the second torque transmission device 10b.

[0290] Advantageously, the first reducer 19a, in particular the first interface element 45a, respectively the second reducer 19b, in particular the second interface element 45b, comprises a first groove 46. The first groove 46 opens inside the first housing 43 of the first reducer 19a, respectively of the second reducer 19b.

[0291] Advantageously, the first coupling element 20a, respectively the second coupling element 20b, comprises a second groove 47. The second groove 47 opens inside the second housing 44 of the first coupling element 20a, respectively of the second coupling element 20b.

[0292] Advantageously, the first transmission element 50 of the first torque transmission device 10a, respectively of the second torque transmission device 10b, is housed, in other words is mounted, in particular in the assembled configuration of the electromechanical actuator 11, inside the first groove 46 of the first reducer 19a, respectively of the second reducer 19b. Furthermore, the second transmission element 51 of the first torque transmission device 10a, respectively of the second torque transmission device 10b, is housed, in other words is mounted, in particular in the assembled configuration of the electromechanical actuator 11, inside the second groove 47 of the first coupling element 20a, respectively of the second coupling element 20b.

[0293] Thus, the arrangement of the first transmission element 50 of the first torque transmission device 10a inside the first groove 46 of the first reducer 19a makes it possible to maximize a bearing surface between the first pin 39 of the first torque transmission device 10a and the first reducer 19a, in particular the first interface element 45a. Furthermore, the arrangement of the second transmission element 51 of the first torque transmission device 10a inside the second groove 47 of the first coupling element 20a makes it possible to maximize a bearing surface between the second pin 40 of the first torque transmission device 10a and the first coupling element 20a.Likewise, the arrangement of the first transmission element 50 of the second torque transmission device 10b inside the first groove 46 of the second reducer 19b makes it possible to maximize a bearing surface between the first pin 39 of the second torque transmission device 10b and the second reducer 19b, in particular the second interface element 45b. Furthermore, the arrangement of the second transmission element 51 of the second torque transmission device 10b inside the second groove 47 of the second coupling element 20b makes it possible to maximize a bearing surface between the second pin 40 of the second torque transmission device 10b and the second coupling element 20b.

[0294] In this way, the arrangement of the first transmission element 50 of the first torque transmission device 10a inside the first groove 46 of the first reducer 19a makes it possible to reduce stresses on the first pin 39 of the first torque transmission device 10a and on the first reducer 19a, in particular on the first interface element 45a. Furthermore, the arrangement of the second transmission element 51 of the first torque transmission device 10a inside the second groove 47 of the first coupling element 20a makes it possible to reduce stresses on the second pin 40 of the first torque transmission device 10a and on the first coupling element 20a.Likewise, the arrangement of the first transmission element 50 of the second torque transmission device 10b inside the first groove 46 of the second reducer 19b makes it possible to reduce stresses on the first pin 39 of the second torque transmission device 10b and on the second reducer 19b, in particular on the second interface element 45b. Furthermore, the arrangement of the second transmission element 51 of the second torque transmission device 10b inside the second groove 47 of the second coupling element 20b makes it possible to reduce stresses on the second pin 40 of the second torque transmission device 10b and on the second coupling element 20b.

[0295] In the second embodiment, shown in Figures 6 and 7, the elements similar to those of the first embodiment bear the same references and operate as explained above. In the following, we describe, mainly, what distinguishes this second embodiment from the previous one. In the following, when a reference sign is used in the description without being reproduced in Figures 6 and 7 or reproduced in Figures 6 and 7 without being mentioned in the description, it corresponds to the object bearing the same reference in one of Figures 1 to 5.

[0296] We will now describe, with reference to Figures 6 and 7, the electromechanical actuator 11 according to the second embodiment of the invention and, more particularly, the first torque transmission device 10a and the second torque transmission device 10b.

[0297] Here, the first torque transmission device 10a, respectively the second torque transmission device 10b, is devoid of a first transmission element 50 and a second transmission element 51.

[0298] Here, each of the first and second ends 38a, 38b of the transmission shaft 38 of the first torque transmission device 10a, respectively of the second torque transmission device 10b, is of spherical shape. Furthermore, the first housing 43 of the first reducer 19a, respectively of the second reducer 19b, and the second housing 44 of the first coupling element 20a, respectively of the second coupling element 20b, have a shape of revolution, respectively around the axes of rotation X10a, X10b, X20a, X20b, in particular are of cylindrical shape.

[0299] Thus, the spherical shape of the first end 38a and the second end 38b of the transmission shaft 38 of the first torque transmission device 10a make it possible to maintain in position, in other words are configured to maintain in position, these first and second ends 38a, 38b respectively inside the first housing 43 of the first reducer 19a and the second housing 44 of the first coupling element 20a, which are of cylindrical shape, while guaranteeing a ball joint connection of the first end 38a and the second end 38b of the transmission shaft 38 respectively inside the first housing 43 of the first reducer 19a and the second housing 44 of the first coupling element 20a.

[0300] Furthermore, the spherical shape of the first end 38a and the second end 38b of the transmission shaft 38 of the second torque transmission device 10b make it possible to maintain in position, in other words are configured to maintain in position, these first and second ends 38a, 38b respectively inside the first housing 43 of the second reducer 19b and the second housing 44 of the second coupling element 20b, which are of cylindrical shape, while ensuring a ball joint connection of the first end 38a and the second end 38b of the transmission shaft 38 respectively inside the first housing 43 of the second reducer 19b and the second housing 44 of the second coupling element 20b.

[0301] Here, the first reducer 19a, respectively the second reducer 19b, comprises two first grooves 46. Each of the first grooves 46 opens inside the first housing 43 of the first reducer 19a, respectively of the second reducer 19b.

[0302] Advantageously, the first grooves 46 of the first reducer 19a, respectively of the second reducer 19b, are arranged inside the first interface element 45a, respectively of the second interface element 45b.

[0303] Here, the first coupling element 20a, respectively the second coupling element 20b, comprises two second grooves 47. Each of the second grooves 47 opens inside the second housing 44 of the first coupling element 20a, respectively of the second coupling element 20b. Here, each of the first and second ends 39a, 39b of the first pin 39 of the first torque transmission device 10a, respectively of the second torque transmission device 10b, is housed inside one of the first grooves 46 of the first reducer 19a, respectively of the second reducer 19b.Furthermore, each of the first and second ends 40a, 40b of the second pin 40 of the first torque transmission device 10a, respectively of the second torque transmission device 10b, is housed inside one of the second grooves 47 of the first coupling element 20a, respectively of the second coupling element 20b.

[0304] Thus, the first and second ends 39a, 39b of the first pin 39 of the first torque transmission device 10a and the first and second ends 40a, 40b of the second pin 40 of the first torque transmission device 10a slide, in other words are configured to slide, respectively inside the first grooves 46 of the first reducer 19a and the second grooves 47 of the first coupling element 20a.

[0305] Furthermore, the first and second ends 39a, 39b of the first pin 39 of the second torque transmission device 10b and the first and second ends 40a, 40b of the second pin 40 of the second torque transmission device 10b slide, in other words are configured to slide, respectively inside the first grooves 46 of the second reducer 19b and the second grooves 47 of the second coupling element 20b.

[0306] In the third embodiment, shown in Figures 8 and 9, elements similar to those of the first and second embodiments bear the same references and operate as explained above. In the following, what is described is mainly what distinguishes this third embodiment from the previous ones. In the following, when a reference sign is used in the description without being reproduced in Figures 8 and 9 or reproduced in Figures 8 and 9 without being mentioned in the description, it corresponds to the object bearing the same reference in one of Figures 1 to 7.

[0307] We will now describe, with reference to Figures 8 and 9, the electromechanical actuator 11 according to the third embodiment of the invention and, more particularly, the first torque transmission device 10a and the second torque transmission device 10b.

[0308] Here, the first torque transmission device 10a, respectively the second torque transmission device 10b, is devoid of a first transmission element 50 and a second transmission element 51. Here, the first reducer 19a, in particular the first interface element 45a, respectively the second reducer 19b, in particular the second interface element 45b, comprises two first orifices 48. Each of the first orifices 48 of the first reducer 19a, respectively of the second reducer 19b, opens into the interior of the first housing 43 of the first reducer 19a, respectively of the second reducer 19b.

[0309] Here, the first coupling element 20a, respectively the second coupling element 20b, comprises two second orifices 49. Each of the second orifices 49 of the first coupling element 20a, respectively of the second coupling element 20b, opens into the interior of the second housing 44 of the first coupling element 20a, respectively of the second coupling element 20b.

[0310] Here, each of the first and second ends 39a, 39b of the first pin 39 of the first torque transmission device 10a, respectively of the second torque transmission device 10b, is fixed, in other words is configured to be fixed, in particular in the assembled configuration of the electromechanical actuator 11, inside one of the first orifices 48 of the first reducer 19a, respectively of the second reducer 19b. Furthermore, each of the first and second ends 40a, 40b of the second pin 40 of the first torque transmission device 10a, respectively of the second torque transmission device 10b, is fixed, in other words is configured to be fixed, in particular in the assembled configuration of the electromechanical actuator 11, inside one of the second orifices 49 of the first coupling element 20a, respectively of the second coupling element 20b.

[0311] In particular, each of the first and second ends 39a, 39b of the first pin 39 of the first torque transmission device 10a, respectively of the second torque transmission device 10b, is crimped, in particular in the assembled configuration of the electromechanical actuator 11, in other words is configured to be crimped, inside one of the first orifices 48 of the first reducer 19a, respectively of the second reducer 19b. Furthermore, each of the first and second ends 40a, 40b of the second pin 40 of the first torque transmission device 10a, respectively of the second torque transmission device 10b, is crimped, in other words is configured to be crimped, in particular in the assembled configuration of the electromechanical actuator 11, inside one of the second orifices 49 of the first coupling element 20a, respectively of the second coupling element 20b.

[0312] Advantageously, each of the first and second openings 41, 42 of the transmission shaft 38 of the first torque transmission device 10a, respectively of the second torque transmission device 10b, is in the form of a groove, in other words a groove.

[0313] Here, this groove is made by two trapezoidal section clearances connected to each other at their narrowest base.

[0314] Thus, each of the first and second openings 41, 42 of the transmission shaft 38 of the first torque transmission device 10a, respectively of the second torque transmission device 10b, makes it possible to produce a ball joint connection at each of the first and second ends 38a, 38b of the transmission shaft 38 of the first torque transmission device 10a, respectively of the second torque transmission device 10b, with one of the first and second pins 39, 40 of the first torque transmission device 10a, respectively of the second torque transmission device 10b.

[0315] By virtue of the present invention, whatever the embodiment, the construction of the electromechanical actuator makes it possible to transmit, from the electric motor, a torque, in particular a significant torque, to the coupling element, through the torque transmission device, when the second axis of rotation of the torque transmission device and the first axis of rotation of the coupling element are offset, in particular by a significant amount.

[0316] Many modifications can be made to the embodiments described above, without departing from the scope of the invention defined by the claims.

[0317] Alternatively, not shown, the concealment device 3 comprises only one movable bar, namely either the first movable bar 8a or the second movable bar 8b.

[0318] As a variant, not shown, the occulting device 3 comprises a number of movable bars greater than or equal to three, which can all be moved by means of the electromechanical actuator 11, respectively by means of a reducer, a torque transmission device and, possibly, a clutch, a counting device and a brake.

[0319] Alternatively, not shown, the first and second cords 4a, 4b, as well as the third and fourth cords 4c, 4d, in particular their ends, are fixed to a window or door structure or to a wall of the building, in particular by means of holding elements. Thus, the occulting device 3 may be without a housing, in other words a rail, arranged in the upper part or above the opening. In this case, the holding elements are configured to be fixed, in other words are fixed, to the window or door structure or to the wall of the building by means of fixing screws, not shown. The fixing screws pass through through holes provided in the holding elements and are screwed either into dowels, not shown, housed in the window or door structure or in the wall of the building or directly into the window or door structure or in the wall of the building.Furthermore, the length of the first, second, third and fourth cords 4a, 4b, 4c, 4d is provided so that these are permanently taut relative to the window or door structure or the wall of the building, so as to allow the movement of the first and second movable bars 8a, 8b along them. In this case, the motorized drive device 5, in particular the electromechanical actuator 11, is mounted, in other words is housed, inside one of the movable bars 8a, 8b, in particular in the assembled configuration of the occulting device 3.

[0320] In another variant, not shown, the first, second, third and fourth cords 4a, 4b, 4c, 4d can be kept taut by means of one or more elastic return elements, such as, for example, one or more springs.

[0321] Alternatively, the electric motor 16 of the electromechanical actuator 11 may be of the asynchronous type.

[0322] As a variant, not shown, the electromechanical actuator 11 further comprises at least one other electric motor. Thus, the electromechanical actuator 11 comprises the electric motor 16, which may be called the first electric motor, and a second electric motor, in particular identical. In this case, the electromechanical actuator 11 is devoid of a coupling device 33 and first and second clutches 23a, 23b. Thus, the first electric motor 16 is configured to drive in rotation, in other words drives in rotation, the first coupling element 20a, via the first reducer 19a and the first torque transmission device 10a, and the second electric motor is configured to drive in rotation, in other words drives in rotation, the second coupling element 20b, via the second reducer 19b and the second torque transmission device 10b.In this case, the first assembly 22 comprises the first electric motor 16, which is aligned along the first axis of rotation Xa, and the second assembly 26 comprises the second electric motor, which is aligned along the second axis of rotation Xb.

[0323] Regardless of the embodiment, one or each of the first, second, third and fourth cords 4a, 4b, 4c, 4d may be replaced by a chain.

[0324] Furthermore, the contemplated embodiments and variations may be combined to generate new embodiments of the invention, without departing from the scope of the invention defined by the claims.

Claims

CLAIMS 1. Electromechanical actuator (11) for a concealment device (3), the electromechanical actuator (11) comprising at least: - a casing (17), - an electric motor (16), - a reducer (19a, 19b), - a coupling element (20a, 20b), the coupling element (20a, 20b) comprising a first axis of rotation (X20a, X20b), and - a torque transmission device (10a, 10b), the torque transmission device (10a, 10b) comprising a second axis of rotation (X10a, X10b), the electric motor (16), the reducer (19a, 19b) and the torque transmission device (10a, 10b) being housed inside the housing (17), the reducer (19a, 19b) being coupled with the coupling element (20a, 20b) via the torque transmission device (10a, 10b), characterized in that the torque transmission device (10a, 10b) comprises at least: - a transmission shaft (38), - a first pin (39), and - a second pin (40), in that the transmission shaft (38) comprises at least: - a first end (38a) and a second end (38b), the second end (38b) being opposite the first end (38a), - a first opening (41), the first opening (41) being provided at the first end (38a), the first pin (39) being housed inside the first opening (41), and - a second opening (42), the second opening (42) being provided at the second end (38b), the second pin (40) being housed inside the second opening (42), in that the reducer (19a, 19b) comprises at least one first housing (43), the first end (38a) of the transmission shaft (38) being arranged inside the first housing (43) of the reducer (19a, 19b), in that the coupling element (20a, 20b) comprises at least one second housing (44), the second end (38b) of the transmission shaft (38) being arranged inside the second housing (44) of the coupling element (20a, 20b), and in that the electromechanical actuator (11) is configured to transmit, from the electric motor (16), a torque to the coupling element (20a, 20b), through the torque transmission device (10a, 10b), when the second axis of rotation (X10a, X10b) of the torque transmission device (10a, 10b) and the first axis of rotation (X20a, X20b) of the coupling element (20a, 20b) are offset.

2. Electromechanical actuator (11) for a concealing device (3) according to claim 1, characterized in that each of the first and second ends (38a, 38b) of the transmission shaft (38) is spherical in shape, and in that the first housing (43) of the reducer (19a, 19b) and the second housing (44) of the coupling element (20a, 20b) have a shape of revolution, respectively around an axis of rotation (X10a, X10b, X20a, X20b).

3. Electromechanical actuator (11) for a concealing device (3) according to claim 1 or according to claim 2, characterized in that the reducer (19a, 19b) further comprises at least one interface element (45a, 45b), and in that the first housing (43) of the reducer (19a, 19b) is arranged inside the interface element (45a, 45b).

4. Electromechanical actuator (11) for a concealment device (3) according to any one of claims 1 to 3, characterized in that the torque transmission device (10a, 10b) further comprises: - a first transmission element (50), and - a second transmission element (51), in that the first transmission element (50) is fixed on the first pin (39), in that the second transmission element (51) is fixed on the second pin (40), in that the reducer (19a, 19b) comprises a first groove (46), the first groove (46) opening inside the first housing (43) of the reducer (19a, 19b), in that the coupling element (20a, 20b) comprises a second groove (47), the second groove (47) opening inside the second housing (44) of the coupling element (20a, 20b), in that the first transmission element (50) is housed inside the first groove (46) of the reducer (19a, 19b), and in that the second transmission element (51) is housed inside the second groove (47) of the coupling element (20a, 20b).

5. Electromechanical actuator (11) for a concealing device (3) according to any one of claims 1 to 3, characterized in that the reducer (19a, 19b) comprises two first grooves (46), each of the first grooves (46) opening inside the first housing (43) of the reducer (19a, 19b), in that the coupling element (20a, 20b) comprises two second grooves (47), each of the second grooves (47) opening inside the second housing (44) of the coupling element (20a, 20b), in that the first pin (39) comprises a first end (39a) and a second end (39b), the second end (39b) being opposite the first end (39a), in that the second pin (40) comprises a first end (40a) and a second end (40b), the second end (40b) being opposite the first end (40a), in that each of the first and second ends (39a,39b) of the first pin (39) is housed inside one of the first grooves (46) of the reducer (19a, 19b), and in that each of the first and second ends (40a, 40b) of the second pin (40) is housed inside one of the second grooves (47) of the coupling element (20a, 20b)., 6. Electromechanical actuator (11) for a concealment device (3) according to any one of claims 1 to 3, characterized in that the reducer (19a, 19b) comprises two first orifices (48), each of the first orifices (48) opening inside the first housing (43) of the reducer (19a, 19b), in that the coupling element (20a, 20b) comprises two second orifices (49), each of the second orifices (49) opening inside the second housing (44) of the coupling element (20a, 20b), in that the first pin (39) comprises a first end (39a) and a second end (39b), the second end (39b) being opposite the first end (39a), in that the second pin (40) comprises a first end (40a) and a second end (40b), the second end (40b) being opposite the first end (40a), in that each of the first and second ends (39a, 39b) of the first pin (39) is fixed inside one of the first orifices (48) of the reducer (19a, 19b), and in that each of the first and second ends (40a, 40b) of the second pin (40) is fixed inside one of the second holes (49) of the coupling element (20a, 20b).

7. Concealment device (3), the concealment device (3) comprising at least: - a screen (2), the screen (2) comprising a first end (2a) and a second end (2b), the second end (2b) being opposite the first end (2a), - a first movable bar (8a), the first end (2a) of the screen (2) being connected to the first movable bar (8a), and - a motorized drive device (5), the motorized drive device (5) being configured to drive the screen (2) in movement, the motorized drive device (5) comprising at least: - an electromechanical actuator (11) according to any one of claims 1 to 6, the electromechanical actuator (11) being configured to drive the first movable bar (8a) in movement.

8. Concealing device (3) according to claim 7, characterized in that the concealing device (3) further comprises: - a first cord or a first chain (4a), - a second cord or a second chain (4b), - a first drive arrangement (6a), the first drive arrangement (6a) being configured to cooperate with the first cord or the first chain (4a), and - a second drive arrangement (6b), the second drive arrangement (6b) being configured to cooperate with the second cord or the second chain (4b), and in that the electromechanical actuator (11) is configured to drive the first movable bar (8a) in movement by means of the first and second cords or chains (4a, 4b).

9. Concealing device (3) according to claim 7 or according to claim 8, characterized in that the concealing device (3) further comprises: - a second movable bar (8b), the second end (2b) of the screen (2) being connected to the second movable bar (8b), and in that the electromechanical actuator (11) is configured to drive the second movable bar (8b) in movement.

10. Concealing device (3) according to claim 9, characterized in that the concealing device (3) further comprises: - a third cord or a third chain (4c), - a fourth cord or a fourth chain (4d), - a third drive arrangement (6c), the third drive arrangement (6c) being configured to cooperate with the third cord or the third chain (4c), and - a fourth drive arrangement (6d), the fourth drive arrangement (6d) being configured to cooperate with the fourth cord or the fourth chain (4d), and in that the electromechanical actuator (11) is configured to drive the second movable bar (8b) in movement by means of the third and fourth cords or chains (4c, 4d).

Images