FR3137404A1 - Motorized drive device for a concealment device and associated concealment device - Google Patents

Abstract

Motorized drive device for a concealment device and associated concealment device A motorized drive device comprises a motor unit (49) comprising an electric motor (11), a transmission device (28 ) and a drive wheel (13). The transmission device (28) comprises a reduction gear (29) comprising a wheel and worm system (30) and a gear system (31). The gear system (31) includes a pivot arm (35), an input gear (32), a planet gear (33), and an output gear (34). The pivoting arm (35) is connected to the input gear (32). The planet gear (33) is mounted on the pivot arm (35). The satellite gear (33) is configured to be meshed with the output gear (34), depending on an angular orientation of the pivoting arm (35) relative to the input gear (32). Furthermore, a first end of a first rotation shaft (55) of the planet gear (33) is housed inside a first bore of the pivot arm (35) and a second end (55b) of the first rotation shaft rotation (55) is housed inside a volume (V54) provided between two retaining lugs (54) of the pivoting arm (35). Figure for abstract: Figure 5.

Description

Motorized drive device for a concealment device and associated concealment device

The present invention relates to a motorized drive device for a concealment device, in other words a motorized drive device for a concealment device. This motorized drive device is intended, in other words is configured, to move at least one screen along a rod following a sliding movement.

The present invention also relates to a concealment device equipped with such a motorized drive device.

Generally speaking, the present invention relates to the field of curtains comprising a motorized drive device moving a screen relative to a rod following a sliding movement, between at least a first position and at least a second position.

We already know the document WO 2021/105320 A1 which describes a motorized drive device for a concealment device. The motorized drive device includes a motorization block. The motor unit includes an electric motor, a transmission device and a drive wheel. The transmission device is configured to be connected to the electric motor. The drive wheel is configured to be driven in rotation, around a first axis of rotation, by means of the electric motor and the transmission device, and to be brought into contact with a first surface of a rod of the device. concealment, so as to move the motorized drive device along the rod in a direction of movement. The transmission device includes a reducer. The reducer includes a wheel and worm system and a gear system. The worm wheel and screw system comprises a wheel and a screw, the wheel being meshed with the screw. The gear system includes a swing arm, an input gear, a planet gear, and an output gear. The wheel of the worm wheel and screw system is integral in rotation with the input pinion. The pivot arm is connected to the input gear. The planet gear is mounted on the pivot arm. The satellite gear is configured to be meshed with the output gear, based on an angular orientation of the pivoting arm relative to the input gear. The output pinion is integral with the drive wheel. This motorized drive device is generally satisfactory.

However, this document is silent regarding the assembly of the gear system and, more particularly, the satellite pinion on the pivoting arm. The maintenance of the satellite gear in relation to the drive arm is not detailed.

The present invention aims to resolve the aforementioned drawbacks and to propose a motorized drive device for a concealment device, as well as a concealment device comprising such a motorized drive device, making it possible to guarantee disengagement of a transmission device of the motorized drive device relative to a driving wheel of the motorized drive device, while reducing the operating noise of the transmission device and minimizing the cost of obtaining the transmission device motorized drive.

To this end, the present invention aims, according to a first aspect, at a motorized drive device for a concealment device,

the motorized drive device comprising at least one motor unit,

the motor unit comprising at least:

- an electric motor,

- a transmission device, the transmission device being configured to be connected to the electric motor, and

- a drive wheel, the drive wheel being configured to be driven in rotation, around a first axis of rotation, by means of the electric motor and the transmission device, and to be brought into contact with a first surface a rod of the concealment device, so as to move the motorized drive device along the rod in a direction of movement,

the transmission device comprising a reducer,

the reducer comprising:

- a wheel and endless screw system, and

- a gear system,

the wheel and worm system comprising:

- a wheel, and

- a screw, the wheel being meshed with the screw,

the gear system comprising:

- a pivoting arm,

- an input pinion, the wheel of the wheel and worm system being integral in rotation with the input pinion, the pivoting arm being connected to the input pinion,

- a planet gear, the planet gear being mounted on the pivoting arm, and

- an output pinion, the satellite pinion being configured to be meshed with the output pinion, depending on an angular orientation of the pivoting arm relative to the input pinion, the output pinion being integral with the drive wheel .

According to the invention, the pivoting arm comprises at least:

- a first bore, and

- two retaining tabs.

The satellite gear includes a first rotation shaft. The first rotation shaft includes a first end and a second end, the second end being opposite the first end. Furthermore, the first end of the first rotation shaft is housed inside the first bore of the pivoting arm and the second end of the first rotation shaft is housed inside a volume provided between the two retaining tabs, so as to hold the satellite gear on the pivoting arm.

Thus, this assembly of the gear system and, more particularly, of the satellite pinion on the pivoting arm makes it possible to guarantee disengagement of the transmission device relative to the drive wheel, while reducing the operating noise of the transmission device and minimizing the cost of obtaining the motorized drive device.

In addition, the two holding tabs of the pivoting arm respectively form a bearing. Each of the bearing surfaces is configured to be in contact, in other words is in contact, with the second end of the first rotation shaft of the satellite pinion, in particular in an assembled configuration of the gear system.

In this way, pressing the two holding tabs of the pivoting arm against the second end of the first rotation shaft of the satellite pinion makes it possible to guarantee a friction force between the pivoting arm and the satellite pinion, without requiring an additional part.

According to an advantageous characteristic of the invention, the motor unit further comprises a casing. The casing includes at least one stop. In addition, each of the holding tabs of the pivoting arm is configured to bear against the stop of the casing, when the satellite pinion is meshed with the output pinion.

According to another advantageous characteristic of the invention, the wheel of the worm wheel and screw system and the input pinion form a first assembly, the first assembly being produced by means of a single part.

According to another advantageous characteristic of the invention, the first assembly comprises a second rotation shaft. The second rotation shaft includes a first end and a second end, the second end being opposite the first end. Additionally, each of the first and second ends of the second rotation shaft is held in position in a first hole in the housing.

According to another advantageous characteristic of the invention, the drive wheel comprises:

- a rim, and

- a tread.

In addition, the rim of the drive wheel and the output pinion form a second assembly, the second assembly being produced by means of a single part.

According to another advantageous characteristic of the invention, the second assembly comprises a third rotation shaft. The third rotation shaft includes a first end and a second end, the second end being opposite the first end. Additionally, each of the first and second ends of the third rotation shaft is held in position in a second hole in the housing.

According to another advantageous characteristic of the invention, the motor unit further comprises a baffle. In addition, the baffle is arranged between the wheel of the wheel and worm system and the drive wheel.

According to another advantageous characteristic of the invention, the chicane is formed in the casing.

According to another advantageous characteristic of the invention, the wheel and worm system has a first reduction ratio. The gear system features a second reduction ratio. Furthermore, the first reduction ratio is greater than the second reduction ratio, the second reduction ratio being strictly less than ten.

The present invention aims, according to a second aspect, at a concealment device comprising at least:

- a screen,

- a rod, and

- a motorized drive device according to the invention and as mentioned above, the screen being suspended from the rod and being movable along the rod, by means of the motorized drive device.

This concealment device has characteristics and advantages similar to those described above, in relation to the motorized drive device according to the invention.

Other particularities and advantages of the invention will appear further in the description below, made with reference to the appended drawings, given by way of non-limiting examples and in which:

there is a schematic perspective view of a concealment or sun protection device comprising a curtain configured to be moved, along a rod, by means of a motorized drive device conforming to an embodiment of the invention, the curtain having a cutaway area to visualize the motorized drive device, the rod being shown partially and being a rail comprising a slot for the movement of retaining elements of the curtain relative to the rod, the device for motorized drive being mounted on the rod;

there is a view analogous to the , where the motorized drive device is detached from the rod;

there is a first schematic exploded perspective view of the motorized drive device illustrated in Figures 1 and 2;

there is a second schematic exploded perspective view of the motorized drive device illustrated in Figures 1 to 3, from an angle of view different from that of the ;

there is a schematic perspective view of a motorization block of the motorized drive device illustrated in Figures 1 to 3, where a half-shell of a casing of the motorization block has been removed;

there is a schematic perspective and exploded view of the motor unit illustrated in Figures 3 to 5;

there is a schematic perspective view of a pivoting arm of a gear system belonging to a reduction gear of a transmission device of the motor unit illustrated in Figures 3 to 6;

there is a schematic perspective view of a satellite pinion of the gear system belonging to the reducer of the transmission device of the motorization block illustrated in Figures 3 to 6; And

there is a schematic perspective view of a half-shell of a casing of the motorization block illustrated in Figures 3 to 6.

We first describe, with reference to Figures 1 and 2, a home automation installation 1 conforming to one embodiment of the invention. The home automation installation 1 comprises a concealment or solar protection device 3 conforming to the embodiment of the invention. This home automation installation 1, installed in a building, not shown, comprises an opening, not shown, in which a window or a door is placed, equipped with at least one screen 2 belonging to the concealment or solar protection device 3, especially a motorized curtain.

The concealment or solar protection device 3 is hereinafter called “concealment device”. The concealment device 3 comprises the screen 2 which, in the examples in the figures, is formed by a curtain.

Alternatively, not shown, the screen 2 can be formed by a concealment canvas, a curtain or even slats.

The concealment device 3 further comprises at least one rod 4. The rod 4 can also be called a bar or a rail. The rod 4 is a support element for the screen 2 of the concealment device 3. The screen 2 is suspended from the rod 4.

Here, the rod 4 is configured to be fixed, in other words is fixed, to a wall W of a room of the building, in an assembled configuration of the home automation installation 1, by means of fixing supports 25, in particular number of two, only one of which is shown in Figures 1 and 2.

Alternatively, not shown, the rod 4 is configured to be fixed, in other words is fixed, to a ceiling of a room of the building, in particular in the assembled configuration of the home automation installation 1, by means of fixing supports.

The number and type of mounting brackets are in no way limiting and may be different.

Here, the concealment device 3 comprises a single screen 2 which can be moved along the rod 4.

As a variant, not shown, the concealment device 3 comprises two screens 2. The two screens 2 can be moved along the same rod 4 or along two separate and parallel rods. In the case where two screens 2 can be moved along the same rod 4, these are each arranged respectively near one end of the rod 4.

The rod 4 further comprises at least a first surface 5 and, optionally, a second surface 6.

Advantageously, the first surface 5 of the rod 4 is formed by a first part of the exterior face of the rod 4.

The rod 4 comprises an upper wall 4a, a lower wall 4b and two side walls 4c.

The rod 4 can also include an intermediate wall 4i. The intermediate wall 4i is arranged between the upper wall 4a and the lower wall 4b.

Here and as illustrated in Figures 1 and 2, the rod 4 comprises at least one slot 65. The slot 65 is formed in the lower wall 4b of the rod 4. The lower wall 4b of the rod 4 comprises a first part 4g and a second part 4d, arranged on either side of slot 65.

Here and as illustrated in Figures 1 and 2, the rod 4 includes at least one other slot 65'. The other slot 65' is formed in the upper wall 4a of the rod 4.

Here, the rod 4 has a rectangular section.

The section of the rod is not restrictive and can be different. It can be, for example, square.

Advantageously, the slot 65 and, optionally, the other slot 65' of the rod 4 extends in a longitudinal direction of the rod 4. The slot 65 and, optionally, the other slot 65' can thus be described as a slot longitudinal.

Advantageously, the lower wall 4b of the rod 4 comprises an interior face and an exterior face.

Advantageously, the rod 4 further comprises a recess 66, as illustrated in Figures 1 and 2.

Here, the recess 66 of the rod 4 is formed between the upper 4a, lower 4b and side walls 4c of the rod 4 and, more particularly, between the intermediate 4i, lower 4b and side walls 4c of the rod 4.

Here, the concealment device 3 further comprises retaining elements 53 of the screen 2. The retaining elements 53 are configured to retain the screen 2 relative to the rod 4 and to accompany the movement of the screen 2 along the rod 4, in an assembled configuration of the concealment device 3.

Here, the first surface 5 further comprises at least one first track 5a and at least one second track 5b. Furthermore, the second surface 6 further comprises at least one first track 6a and at least one second track 6b.

Advantageously, the first and second tracks 5a, 5b of the first surface 5 are provided on either side of the slot 65 of the rod 4. In addition, the first and second tracks 6a, 6b of the second surface 6 are provided on either side of slot 65 of rod 4.

Advantageously, the first and second tracks 5a, 5b of the first surface 5 are formed by the exterior face of the lower wall 4b of the rod 4 and, more particularly, by the exterior face of the first and second parts 4g, 4d of the wall lower 4b of the rod 4. In addition, the first and second tracks 6a, 6b of the second surface 6 are formed by the interior face of the lower wall 4b of the rod 4 and, more particularly, by the interior face of the first and second parts 4g, 4d of the lower wall 4b of the rod 4.

Advantageously, each retaining element 53 comprises at least one first and at least one second wheel, not shown. The first and second wheels of a retaining element 53 are configured to be placed in support respectively with the first and second tracks 6a, 6b of the second surface 6, in particular in the assembled configuration of the concealment device 3.

Advantageously, the first and second wheels of each retaining element 53 are configured to be free to rotate, around an axis of rotation.

Advantageously, in the mounted configuration of the retaining elements 53 on the rod 4, the axis of rotation of the first and second wheels of each retaining element 53 is orthogonal to a direction of movement D of the screen 2 along the rod 4 .

Advantageously, each retaining element 53 further comprises a ring 48. The ring 48 is configured to suspend the screen 2 relative to the rod 4, in particular in the assembled configuration of the concealment device 3. Furthermore , the ring 48 is configured to extend through the slot 65 of the rod 4, in particular in the assembled configuration of the concealment device 3.

Here, the ring 48 of each retaining element 53 has a round shape.

The shape of the ring of each retaining element is not restrictive and may be different. It can be, for example, triangular or elliptical.

Advantageously, the concealment device 3 further comprises hooks 75. Each hook 75 is configured to be attached, in other words is attached, to the screen 2. In addition, the ring 48 of each retaining element 53 is configured to receive, in other words receives, one of the hooks 75, so as to suspend the screen 2 relative to the rod 4 and, more particularly, relative to the retaining elements 53.

The concealment device 3 further comprises at least one motorized drive device 10. The motorized drive device 10 is configured to be suspended relative to the rod 4, in other words is suspended from the rod 4, in particular in the assembled configuration of the concealment device 3, and to move along the rod 4, so as to close or open the screen 2. The screen 2 is thus movable along the rod 4, by means of the motorized drive device 10.

Here, the rod 4 is a guide support for the motorized drive device 10.

We now describe, with reference to Figures 1 to 6, the motorized drive device 10 of the concealment device 3 illustrated in Figures 1 and 2.

The motorized drive device 10 comprises a motor unit 49.

Advantageously, the motorized drive device 10 further comprises a housing 43.

Here, the housing 43 comprises an upper side 43d, a lower side 43e and a peripheral contour 43c. The upper side 43d is opposite the lower side 43e and is on the top of the housing 43, in the assembled configuration of the home automation installation 1, while the lower side 43e is on the underside of this housing 43. The peripheral contour 43c is arranged between the upper side 43d and the lower side 43e.

Advantageously, the motor unit 49 is housed, in other words is configured to be housed, inside the housing 43, in particular in an assembled configuration of the motorized drive device 10.

Advantageously, the motorized drive device 10 further comprises a source of electrical energy 12, as illustrated in .

Here, the electrical energy source 12 comprises a plurality of batteries 27.

The type of electrical energy source is not limiting and may be different. This could be, for example, a battery.

The electrical energy source 12 can be rechargeable, in particular by means of a charger or a photovoltaic panel, and can also be called an accumulator.

Advantageously, the motorized drive device 10 is configured to allow movement of the screen 2 manually, in the case where the electrical energy source 12 has a state of charge lower than a threshold value.

Advantageously, the motorized drive device 10 further comprises a support 40. In addition, the source of electrical energy 12 is housed, in other words is configured to be housed, inside the support 40, in particular in the assembled configuration of the motorized drive device 10.

Here and in no way limiting, the motorized drive device 10 comprises four batteries 27 arranged inside the support 40.

Advantageously, the support 40 is housed, in other words is configured to be housed, inside the housing 43, in particular in the assembled configuration of the motorized drive device 10.

Here, the housing 43 comprises a first half-shell 43a and a second half-shell 43b. Furthermore, the first and second half-shells 43a, 43b are configured to be assembled, in other words are assembled, together, by means of fixing elements, not shown, in particular in the assembled configuration of the motorized drive device 10 .

The fixing elements of the housing 43 can be, for example, screw fixing elements.

The type of fixing elements of the first and second half-shells is not restrictive and may be different. These may be, for example, elastic snap fastening elements.

Advantageously, the support 40 forms a part of the housing 43, in particular a bottom of the housing 43, so as to allow access to the electrical energy source 12, in particular to replace the latter. In this case, the support 40 defines the lower side 43e of the housing 43.

Thus, the support 40 forms a drawer disposed between the first and second half-shells 43a, 43b and is configured to introduce the source of electrical energy 12 inside the housing 43 and to remove it outside the housing 43 .

Advantageously, the support 40 comprises two retaining elements 41, one of which is visible in Figures 1 to 3 and the other is visible in Figures 3 and 4. The housing 43 comprises two openings 45, one of which is visible in Figures 3 and 4. Figures 1, 2 and 4 and the other is visible in Figures 3 and 4. Each retaining element 41 is configured to cooperate, in other words cooperate, in particular by elastic snap-fastening, with one of the openings 45 of the housing 43, in particularly with an edge 47 of one of the openings 45, so as to hold the support 40 in position inside the housing 43, in particular in the assembled configuration of the motorized drive device 10.

Here and in no way limiting, each opening 45 is made by joining two cutouts 45a, 45b provided on one edge of each of the first and second half-shells 43a, 43b.

The motor unit 49 comprises an electric motor 11, as illustrated in Figures 3, 5, and 6.

Advantageously, the electric motor 11 is configured to be supplied with electrical energy, in other words is supplied with electrical energy, by means of the electrical energy source 12.

Here, the electric motor 11 is of the electronically commutated brushless type, also called “BLDC” (acronym for the Anglo-Saxon term BrushLess Direct Current) or “permanent magnet synchronous”, or of the direct current type.

Here, each retaining element 53 is configured to be moved, in other words is moved, along the rod 4, in this case pushed or pulled inside the recess 66 of the rod 4, during the electrical activation of the electric motor 11 of the motorized drive device 10, so as to close or open the screen 2.

The motor unit 49 further comprises a transmission device 28, as illustrated in Figures 3 to 6. The transmission device 28 is configured to be connected, in other words is connected, to the electric motor 11, in particular in the configuration assembly of the motorization block 49.

Advantageously, the electric motor 11 and the transmission device 28 are housed, in other words are configured to be housed, inside the housing 43, in particular in the assembled configuration of the motorized drive device 10.

The motor unit 49 further comprises a drive wheel 13. Furthermore, the drive wheel 13 is configured to be driven in rotation, around a first axis of rotation X13, illustrated in Figures 1 and 3 to 5, by means of the electric motor 11 and the transmission device 28, and to be brought into contact with the first surface 5 of the rod 4, so as to move the motorized drive device 10 along the rod 4 next the direction of movement D. In other words, the drive wheel 13 is rotated, in other words is configured to be rotated, by the electric motor 11 and the transmission device 28, and is brought into contact, in other words is configured to be brought into contact with the first surface 5 of the rod 4, when the motorized drive device 10 is operating, in other words during electrical activation of the electric motor 11.

Thus, the rod 4 and, more particularly, the first surface 5 of the rod 4 is configured to cooperate, in other words cooperate, with the drive wheel 13, in particular in the assembled configuration of the concealment device 3.

Here, the motorized drive device 10 is configured to move along the rod 4 in the direction of movement D. The direction of movement D of the motorized drive device 10 relative to the rod 4 corresponds to the longitudinal direction of the rod 4, parallel to its longitudinal axis A4. In addition, the direction of movement D of the motorized drive device 10 relative to the rod 4 is identical to the direction of movement of the screen 2 along the rod 4.

Advantageously, the first axis of rotation X13 of the drive wheel 13 is orthogonal to the direction of movement D of the motorized drive device 10 along the rod 4.

Advantageously, the motorized drive device 10 is controlled by a control unit 15, 16. The control unit can be, for example, a local control unit 15 or a central control unit 16, as illustrated in Fig. .

Advantageously, the local control unit 15 can be connected, in a wired or non-wired connection, with the central control unit 16.

Advantageously, the central control unit 16 can control the local control unit 15, as well as other similar local control units distributed throughout the building.

The motorized drive device 10 is preferably configured to execute the commands for closing or opening the screen 2 of the concealment device 3, which can be issued, in particular, by the local control unit 15 and /or the central control unit 16.

The home automation installation 1 comprises either the local control unit 15, or the central control unit 16, or the local control unit 15 and the central control unit 16.

Means for controlling the motorized drive device 10, allowing the movement of the screen 2 of the concealment device 3, comprise at least one electronic control unit 17, as illustrated in Figures 3 and 4. This electronic unit control unit 17 is able to put the electric motor 11 into operation and, in particular, to allow the supply of electrical energy to the electric motor 11. This electronic control unit 17 can, in addition, be able to regulate a speed of rotation of the electric motor 11, as well as modifying the rotation speed of the electric motor 11, in particular increasing this rotation speed when starting the electric motor 11 or reducing this rotation speed when stopping the electric motor 11 .

Thus, the electronic control unit 17 controls, in particular, the electric motor 11, so as to close or open the screen 2.

The control means of the motorized drive device 10 comprise hardware and/or software means. By way of non-limiting example, the hardware means may include at least one microcontroller 18, as illustrated in .

Advantageously, the electronic control unit 17 comprises a first communication module 19, as illustrated in , in particular for receiving control orders, the control orders being issued by an order transmitter, such as the local control unit 15 and/or the central control unit 16, these orders being intended to control the motorized drive device 10.

Preferably, the first communication module 19 of the electronic control unit 17 is of the wireless type. In particular, the first communication module 19 is configured to receive radio control orders.

Advantageously, the electronic control unit 17, the local control unit 15 and/or the central control unit 16 can be in communication with one or more sensors, not shown, arranged inside the building or remote to the exterior of the building. This or these sensors can be configured to determine, for example, temperature, brightness or even humidity.

Advantageously, the electronic control unit 17, the local control unit 15 and/or the central control unit 16 can also be in communication with a server 20, as illustrated in Fig. , so as to control the motorized drive device 10 according to data made available remotely via a communications network, in particular an Internet network that can be connected to the server 20.

The electronic control unit 17 can be controlled from the local 15 or central 16 control unit. The local 15 or central 16 control unit is provided with a control keyboard. The control keyboard of the local control unit 15 or central control unit 16 comprises one or more selection elements 21 and, optionally, one or more display elements 22.

By way of non-limiting examples, the selection elements may include push buttons and/or sensitive keys. The display elements may include light-emitting diodes and/or a display, for example LCD (acronym for the Anglo-Saxon term “Liquid Crystal Display”) or TFT (acronym for the Anglo-Saxon term “Thin Film Transistor”). The selection and display elements can also be carried out using a touch screen.

The local control unit 15 or central 16 comprises at least a second communication module 23.

Thus, the second communication module 23 of the local or central control unit 15 or central 16 is configured to emit, in other words emits, control orders, in particular by wireless means, for example radio, or by wired means .

In addition, the second communication module 23 of the local control unit 15 or central 16 can also be configured to receive, in other words receive, control orders, in particular via the same means.

The second communication module 23 of the local control unit 15 or central control unit 16 is configured to communicate, in other words communicate, with the first communication module 19 of the electronic control unit 17.

Thus, the second communication module 23 of the local control unit 15 or central 16 exchanges control orders with the first communication module 19 of the electronic control unit 17, either in a monodirectional manner or in a bidirectional manner.

Advantageously, the local control unit 15 is a control point, which can be fixed or mobile. A fixed control point may be a control box intended to be fixed on a facade of a wall of the building or on one side of a fixed frame of a window or door. A portable control point can be a remote control, a smartphone or a tablet.

Advantageously, the local control unit 15 and/or central 16 also comprises a controller 24.

The motorized drive device 10, in particular the electronic control unit 17, is preferably configured to execute movement control orders, in particular closing as well as opening, of the screen 2 of the device. concealment 3. These control orders can be issued, in particular, by the local control unit 15 or by the central control unit 16.

The motorized drive device 10 can be controlled by the user, for example by receiving a control order corresponding to pressing one or more of the selection elements 21 of the local control unit 15 or central 16.

The motorized drive device 10 can also be controlled automatically, for example by receiving a control order corresponding to at least one signal coming from at least one sensor, not shown, and/or to a signal coming from a clock of the electronic control unit 17, in particular of the microcontroller 18. Alternatively, the sensor and/or the clock can be integrated into the local control unit 15 or into the central control unit 16.

Advantageously, the electronic control unit 17 is housed, in other words is configured to be housed, inside the housing 43, in particular in the assembled configuration of the motorized drive device 10.

Advantageously, the motorized drive device 10, in particular the motorization block 49, comprises a counting device 38, visible at the . Furthermore, the counting device 38 is configured to cooperate, in other words cooperates, with the electronic control unit 17.

Advantageously, the counting device 38 comprises at least one sensor 36, in particular a position sensor.

Here, the counting device 38 comprises two sensors 36, only one of which is visible at the .

The number of sensors of the counting device is not limiting and can be different, in particular equal to one or greater than or equal to three.

In one embodiment, the counting device 38 is of the magnetic type, for example an encoder equipped with one or more Hall effect sensors.

Here, the counting device 38 makes it possible to determine the number of revolutions made, from a reference position, by a rotor of the electric motor 11.

Alternatively, the counting device 38 makes it possible to determine the angular position of the drive wheel 13.

The type of counting device is not limiting and may be different. This counting device can, in particular, be of the optical type, for example an encoder equipped with one or more optical sensors, or of the temporal type, for example a microcontroller clock.

The counting device 38 can also make it possible to detect the reaching of one of the end positions of the motorized drive device 10 relative to the rod 4.

Alternatively, the motorized drive device 10 may comprise a first counting device 38 provided with one or more sensors 36 and a second time counting device, not shown, implemented, for example, by means of a clock of the microcontroller 18.

Thus, the first counting device 38 can make it possible to determine the reaching of one of the end of stroke positions and the second counting device can make it possible to determine intermediate positions between the two end of stroke positions, so as to minimize the electrical energy consumption of the motorized drive device 10 and increase the operating time of the electrical power source 12.

Advantageously, the motorized drive device 10 and, more particularly, the electronic control unit 17 is configured to electrically activate the electric motor 11, following detection of a movement of the screen 2 implemented manually, in particular by the user.

Thus, the movement of the screen 2 is implemented, initially manually and, secondly, automatically by means of the motorized drive device 10.

In this way, the movement of the screen 2 is started manually then continued automatically by the motorized drive device 10.

Here, the detection of a manual movement of the screen 2 is implemented by the electronic control unit 17 and, in particular, on the basis of information provided by the counting device 38.

Advantageously, the electronic control unit 17 is configured to determine a direction of movement of the screen 2 implemented manually, so as to control the electric motor 11 as a function of the determined direction of movement.

Here, the detection of the direction of manual movement of the screen 2 is implemented by the electronic control unit 17 and, in particular, on the basis of information provided by the counting device 38.

Here, the electronic control unit 17 comprises a single electronic card 26, equipped with the first communication module 19, configured to control the electric motor 11 and to receive control orders and, possibly, transmit messages.

As a variant, not shown, the electronic control unit 17 comprises a first electronic card 26, configured to control the electric motor 11, and a second electronic card equipped with the first communication module 19, configured to receive control orders and, possibly, send messages.

Advantageously, the electronic control unit 17 comprises a measuring device 73, as illustrated in , of an intensity value I of an electric current passing through the electric motor 11.

Thus, the measuring device 73 can make it possible to learn the end positions, closed or open, of the screen 2 and to detect the reaching of one of these end positions, during a electrical activation of the electric motor 11.

In this case where the electronic control unit 17 includes the measuring device 73, the motorized drive device 10 may be without the counting device 38.

The transmission device 28 comprises a reduction gear 29, as illustrated in Figures 3 to 6.

The reducer 29 includes a wheel and worm system 30 and a gear system 31.

Here, the reducer 29 comprises two reduction stages. A first reduction stage of the reducer 29 is formed by the wheel and worm system 30. A second reduction stage of the reducer 29 is formed by the gear system 31.

The worm wheel and screw system 30 includes a wheel 30a and a screw 30b. In addition, the wheel 30a is meshed with the screw 30b.

The gear system 31 comprises a pivoting arm 35, an input pinion 32, a satellite gear 33 and an output pinion 34. The pivoting arm 35 is connected to the input pinion 32. The wheel 30a of the wheel system and endless screw 30 is integral in rotation with the input pinion 32 and, more particularly, the wheel 30a and the input pinion 32 have the same axis of rotation X32. The satellite pinion 33 is mounted on the pivoting arm 35. The satellite pinion 33 is configured to be meshed, in other words is meshed, with the output pinion 34, depending on an angular orientation of the pivoting arm 35 relative to the pinion d input 32. In addition, the output pinion 34 is integral with the drive wheel 13.

Here, the reduction gear 29 is either in a disengaged state, that is to say that the satellite pinion 33 is disengaged with respect to the output pinion 34, or in a first engaged state, that is to say that the satellite pinion 33 is meshed with the output pinion 34 in a first position of the pivoting arm 35 relative to the output pinion 34 and, in particular, relative to the drive wheel 13, i.e. in a second engaged state, it that is to say that the satellite pinion 33 is meshed with the output pinion 34 in a second position of the pivoting arm 35 relative to the output pinion 34 and, in particular, relative to the drive wheel 13. The first and second engaged states depend on the direction of rotation of the electric motor 11 and, consequently, on the direction of movement of the motorized drive device 10 relative to the rod 4 in the direction of movement D.

Advantageously, the wheel and endless screw system 30 has a first reduction ratio. The gear system 31 has a second reduction ratio. Furthermore, the first reduction ratio is greater than the second reduction ratio.

Advantageously, the first reduction ratio is greater than or equal to ten.

As a non-limiting example, the first reduction ratio is of the order of 40.

Advantageously, the second reduction ratio is strictly less than ten and, preferably, of the order of one.

Advantageously, when a stop command for the electric motor 11 is executed by the electronic control unit 17, a drive of the electric motor 11, in a direction of rotation opposite to the initial direction of rotation for controlling the electric motor 11, is implemented, so as to disengage the reduction gear 29, in particular the second reduction stage.

Here, the disengagement of the reduction gear 29 is implemented by a backward movement of the pivoting arm 35, so as to disengage the satellite pinion 33 relative to the output pinion 34.

Thus, following the disengagement of the reducer 29, in particular the second reduction stage of the reducer 29, the motorized drive device 10 and, more particularly, the screen 2 can be moved manually relative to the rod 4.

Advantageously, the electronic control unit 17, in particular the microcontroller 18, is configured to determine, in particular by means of the counting device 38 configured to determine the angular position of the drive wheel 13 or by means of a sensor detecting the position of the pivoting arm 35, not shown, if the disengagement of the reduction gear 29 has taken place, in particular the disengagement of the second reduction stage of the reduction gear 29. This determination is, in particular, carried out via a or several signals transmitted by the counting device 38 or by the position detection sensor to the electronic control unit 17.

The disengagement of the reduction gear 29, in particular of the second reduction stage of the reduction gear 29, following a stop command of the electric motor 11, can thus allow, following detection of a movement of the screen 2 implemented manually , in particular by means of the counting device 38, to automatically start the electric motor 11, so as to move the screen 2 relative to the rod 4.

The disengagement of the reducer 29, in particular of the second reduction stage, following a stop command from the electric motor 11, can, in addition, make it possible to close or open the screen 2 manually, in the case where the source electrical energy 12 is discharged, in other words presents a state of charge lower than a predetermined threshold value.

Advantageously, the housing 43 comprises at least one wall 9, called the upper wall.

Here, the wall 9 is an integral part of the housing 43 and, more particularly, is broken down into two parts belonging respectively to the first and second half-shells 43a, 43b. Wall 9 then forms the upper side 43d of housing 43.

Alternatively, not shown, the wall 9 is fixed, in other words is configured to be fixed, to the housing 43, by means of at least one fixing element, at the level of the upper side 43d of the housing 43, in particular in the configuration assembly of the motorized drive device 10.

Advantageously, the wall 9 is arranged, in other words is configured to be arranged, between the housing 43 and the rod 4, in particular in the mounted state of the motorized drive device 10 on the rod 4.

Advantageously, the wall 9 is parallel to the rod 4, in particular in the assembled configuration of the concealment device 3.

Advantageously, an upper face 9c of the wall 9 is opposite a lower face 9d of this wall 9. The lower face 9d of the wall 9 is arranged opposite an interior volume V43 of the housing 43, in which are, in particular, arranged the motorization block 49 and the electronic control unit 17, in particular in the assembled configuration of the motorized drive device 10. The upper face 9c of the wall 9 is arranged opposite the rod 4, in particular in the assembled configuration of the concealment device 3.

Advantageously, the drive wheel 13 is configured to be arranged, in other words is arranged, through a central opening 51 of the wall 9, in particular in the assembled configuration of the motorized drive device 10.

Here and in no way limiting, the central opening 51 is made by joining two cutouts 51a, 51b provided on one edge of each of the first and second half-shells 43a, 43b.

Advantageously, the motorized drive device 10 further comprises at least one first holding device 37. The first holding device 37 is connected, in other words is configured to be connected, to the housing 43, in particular in the assembled configuration of the motorized drive device 10, so as to hold the housing 43 relative to the rod 4, in other words to suspend the housing 43 relative to the rod 4, in particular in the assembled configuration of the concealment device 3.

Advantageously, the motorized drive device 10 further comprises at least a second holding device 39. The second holding device 39 is connected, in other words is configured to be connected, to the housing 43, in particular in the assembled configuration of the motorized drive device 10, so as to maintain the housing 43 relative to the rod 4, in other words to suspend the housing 43 relative to the rod 4, in particular in the assembled configuration of the concealment device 3.

Advantageously, the first and second holding devices 37, 39 are configured to be arranged, in other words are arranged, on either side of the first axis of rotation X13 of the drive wheel 13, in the direction of movement D of the motorized drive device 10 along the rod 4, particularly in the assembled configuration of the motorized drive device 10.

Advantageously, the first and second holding devices 37, 39 are configured to be arranged, in other words are arranged, symmetrically with respect to a median plane P of the motorized drive device 10 and, more particularly, of the wall 9, the trace of this median plane P being illustrated in the . This median plane P is perpendicular to the longitudinal axis A4 and, preferably, includes the first axis of rotation X13.

Advantageously, the first and second holding devices 37, 39 are identical.

Thus, what is described below for the first holding device 37 applies to the second holding device 39. Each of the elements constituting the first holding device 37 is duplicated for the second holding device 39, may comprise in its denomination the term “second” in replacement of the term “first” and can be designated by the same reference.

Advantageously, the first holding device 37 comprises at least a first suspension element 7. The first suspension element 7 is configured to be either in an unlocked state or in a locked state relative to the housing 43.

Advantageously, the housing 43 comprises at least a first housing 8. The first housing 8 is configured to receive, in other words receives, a first part of the first suspension element 7, in particular in an assembled configuration of the motorized drive device 10.

Here and in no way limiting, the first housing 8 is made by a cutout made in each of the first and second half-shells 43a, 43b.

In the example of the figures, the first housing 8 comprises a first opening and a second opening. The first housing 8 opens both onto the upper face 9c of the wall 9, in the form of an orifice, in particular circular, forming the first opening, and onto the peripheral contour 43c, in the form of a cutout forming the second opening.

The first suspension element 7 is movable in rotation, in other words is configured to be movable in rotation, inside the first housing 8, around an axis of rotation X7, illustrated in , particularly in the assembled configuration of the motorized drive device 10, as long as the first suspension element 7 is in the unlocked state relative to the housing 43.

Advantageously, the first holding device 37 further comprises at least one first operating element 46, which can also be called an operating lever. In addition, the first operating element 46 is configured to rotate, in other words rotate, the first suspension element 7, around the axis of rotation X7, between the unlocked state and the locked state, and Conversely.

Here, in the unlocked state of the first suspension element 7 relative to the housing 43, the first suspension element 7 and the first operating element 46 are secured in rotation around the axis of rotation X7 by engaging the first part of the first suspension element 7 in the first housing 8, through its first opening, and by engaging the operating element 46 in this same first housing 8, through its second opening.

Advantageously, the operating element 46 comprises a housing 46a, of non-circular section, for receiving a first part 7a of the first suspension element 7, of non-circular section. This makes it possible to join the first suspension element 7 and the maneuvering element 46 in rotation around the axis of rotation X7.

Advantageously, in the unlocked state, the first suspension element 7 is removable relative to the first housing 8 of the housing 43.

Thus, in the unlocked state, the first suspension element 7 can be extracted from the first housing 8 of the housing 43 by a movement carried out in the direction of the axis of rotation X7.

Advantageously, the first suspension element 7 comprises at least a first rod 58 and a first pad 59. The first housing 8 of the housing 43 is configured to receive, in other words receives, the first rod 58 of the first suspension element 7, in particular in the assembled configuration of the motorized drive device 10. Furthermore, the first shoe 59 is configured to be brought into contact, in other words is brought into contact, with the second surface 6 of the rod 4, in particular in the assembled configuration of the concealment device 3, so as to maintain the housing 43 relative to the rod 4.

Thus, the first pad 59 makes it possible to implement a movement of the motorized drive device 10 along the rod 4 by sliding it on the second surface 6 of the rod 4.

Here, the first part 7a of the first suspension element 7 is a part of the first rod 58.

Advantageously, the first shoe 59 is configured to be arranged, in other words is arranged, outside the housing 43, in particular in the assembled configuration of the motorized drive device 10.

Here, in the assembled configuration of the concealment device 3 and, more particularly, in a mounted state of the motorized drive device 10 on the rod 4, the drive wheel 13 is placed against a first side of the rod 4, which carries the first surface 5, and the first pad 59 is placed against a second side of the rod 4, which carries the second surface 6. The second side of the rod 4 is opposite the first side of the rod 4 .

Advantageously, the motorized drive device 10 further comprises at least one elastic return element 44. The or each elastic return element 44 is configured to support, in other words supports, the drive wheel 13 against the rod 4, in particular with the first surface 5 of the rod 4, in particular in the assembled configuration of the concealment device 3.

Here and as visible in Figures 3, 4 and 6, the motorized drive device 10 comprises two elastic return elements 44. In addition, each elastic return element 44 is a spring, in particular compression, and is made in a spiral .

The number and shape of the elastic return elements are not limiting and may be different. The number of elastic return elements may be equal to one, three or more. In addition, the or each elastic return element can be a tension spring and can be made in the shape of a hairpin or even be a leaf spring.

Advantageously, the drive wheel 13 is movable, in particular following a translation movement M, more particularly vertical, as illustrated in , inside the housing 43, so as to be placed against the rod 4, by means of the elastic return elements 44, in particular in the assembled configuration of the concealment device 3, when the housing 43 is suspended from the rod 4.

Advantageously, the motorization block 49 further comprises a casing 50. In addition, the electric motor 11 and the transmission device 28 are configured to be housed, in other words are housed, inside the casing 50 of the motorization block. motorization 49, in particular in the assembled configuration of the motorization block 49.

Here, the casing 50 comprises a first half-shell 50a and a second half-shell 50b. In addition, the first and second half-shells 50a, 50b are configured to be assembled, in other words are assembled together by means of fixing elements 74, illustrated in Fig. , in particular in the assembled configuration of the motorization block 49.

Here, the fixing elements 74 of the first and second half-shells 50a, 50b of the casing 50 are screw fixing elements, in particular three in number. Each fixing element 74 passes through, in other words is configured to pass through, a passage hole 76 provided in one of the first and second half-shells 50a, 50b, in this case the first half-shell 50a, and is screwed, in other words is configured to be screwed, in a fixing hole 77 provided in the other of the first and second half-shells 50a, 50b, in this case the second half-shell 50b, in particular in the assembled configuration of the block of motorization 49. Only two of the passage holes 76 are shown on the .

The type and number of fixing elements of the first and second half-shells of the casing are not limiting and may be different. These may be, for example, elastic snap fastening elements, which may be, for example, two, four or more in number.

Advantageously, the drive wheel 13 is configured to be housed, in other words is housed, partly inside the casing 50 of the motor unit 49 and is configured to be arranged, in other words is arranged, partly inside the exterior of the casing 50 of the motorization block 49, in particular in the assembled configuration of the motorized drive device 10 and, more particularly, of the motorization block 49.

Advantageously, the or each elastic return element 44 is configured to cooperate, in other words cooperate, on the one hand, with the housing 43 and, on the other hand, with the casing 50, in particular in the assembled drive device configuration motorized 10. In addition, the drive wheel 13 is configured to be placed in support, in other words is placed in support, against the first surface 5 of the rod 4, by means of the or each elastic return element 44, in particularly in the mounted state of the motorized drive device 10 on the rod 4.

Thus, the motor unit 49 is mobile, in particular following the translation movement M, inside the housing 43, under the action of the elastic return elements 44, so as to support the drive wheel 13 against the first surface 5 of the rod 4, in particular in the assembled configuration of the concealment device 3. This corresponds to the translation movement M described previously.

Here, the elastic return elements 44 are configured to cooperate, on the one hand, with a first support wall 52 arranged inside the housing 43 of the motorized drive device 10 and, on the other hand, with the casing 50 of motorization block 49.

Advantageously, the first support wall 52 is parallel to the rod 4, in particular in the assembled configuration of the concealment device 3.

Here and in no way limiting, the first support wall 52 is produced by a part formed in each of the first and second half-shells 43a, 43b of the housing 43.

In the assembled configuration of the concealment device 3, the elastic return elements 44 make it possible to take into consideration an evolution of a mass of the screen 2 to be pulled or pushed by means of the motorized drive device 10, during 'a movement of the motorized drive device 10 along the rod 4 by the electrical activation of the electric motor 11, both for closing the screen 2 and for opening the screen 2, by adjusting a pressure exerted by the drive wheel 13 on the rod 4.

Advantageously, when the electric motor 11 is electrically activated, the casing 50 is configured to be inclined, in other words is inclined, inside the housing 43, relative to the median plane P of the housing 43.

In the assembled configuration of the concealment device 3, when the electric motor 11 is electrically activated, the drive wheel 13 is placed against the rod 4, via the elastic return elements 44 bearing on the first support wall 52 arranged in the housing 43 and is driven in rotation, around the first axis of rotation X13, via the electric motor 11 and, possibly, the transmission device 28.

Thus, a compressive force is exerted on the elastic return elements 44 causing a movement of the motorization block 49 inside the housing 43. This movement of the motorization block 49 inside the housing 43 depends on the direction of rotation of the electric motor 11 and, therefore, of the drive wheel 13.

In this way, the motor unit 49 is in an inclined position inside the housing 43 and, more particularly, in relation to the rod 4.

Consequently, a bracing is generated inside the motorized drive device 10 causing an increase in the force of the drive wheel 13 on the rod 4, so as to move the motorized drive device 10 along the rod 4.

Advantageously, when the electric motor 11 is electrically deactivated, the motor unit 49 can be in a position where a median plane of this motor unit 49 is parallel to the median plane P of the housing 43, in practice superimposed on the median plane P.

As a variant, not shown, when the electric motor 11 is electrically deactivated, the motor unit 49 can remain in an inclined position relative to the median plane P of the housing 43, in particular due to the force of the drive wheel 13 on the first surface 5 of the rod 4, in particular in the assembled configuration of the concealment device 3, and following a movement of the motorized drive device 10 along the rod 4.

In the assembled configuration of the concealment device 3, when the electric motor 11 is electrically deactivated, the drive wheel 13 is placed against the rod 4, via the elastic return elements 44 bearing on the housing 43 and, more particularly, on the first support wall 52.

Thus, a force is exerted in a balanced manner on the elastic return elements 44. This force is transmitted to the housing 43, to the wall 9 then transmitted to the first and second holding devices 37, 39 which themselves transmit this force to the rod 4.

In this way, the motor unit 49 can be in a vertical position inside the housing 43 and, more particularly, in relation to the rod 4 which, by hypothesis, is horizontal.

Advantageously, the housing 43 is configured to be held, in other words is held, in a predetermined orientation, in particular constant over time, relative to the rod 4, via the first and second holding devices 37, 39, in particular in the assembled configuration of the concealment device 3.

Thus, this predetermined orientation of the housing 43 relative to the rod 4 is implemented following the maintenance of the motorized drive device 10 relative to the rod 4 via the first and second holding devices 37, 39 cooperating with the rod 4, whether during electrical deactivation of the electric motor 11 or during electrical activation of the electric motor 11.

In this way, an angle value, not shown, between the median plane P of the housing 43 relative to the longitudinal axis A4 of the rod 4 is constant, whether when stopping the motorized drive device 10 relative to the rod 4 or during a movement of the motorized drive device 10 along the rod 4, implemented by the electrical activation of the electric motor 11.

Preferably, the angle value between the median plane P of the housing 43 relative to the longitudinal axis A4 of the rod 4 is of the order of 90°.

Such a construction of the motorized drive device 10 makes it possible to minimize a stiffness value of the or each elastic return element 44.

Due to the holding of the motorized drive device 10 relative to the rod 4 via the first and second holding devices 37, 39, the stiffness value of the elastic return element(s) 44 determines an initial contact pressure of the drive wheel 13 on the rod 4, as long as the electric motor 11 is electrically deactivated.

We now describe, with reference to Figures 5 to 9, in more detail the transmission device 28 of the motorized drive device 10, illustrated in Figures 1 to 6.

The pivoting arm 35 comprises a first bore 42 and two retaining lugs 54.

Advantageously, the holding tabs 54 form a clamp.

Here, the two holding tabs 54 can also be called first holding tab and second holding tab.

Advantageously, the two holding tabs 54 are spaced apart from each other, in other words are separated by a slot 79 provided in the pivoting arm 35, as illustrated in the .

The satellite gear 33 comprises a first rotation shaft 55. The first rotation shaft 55 comprises a first end 55a and a second end 55b. The second end 55b is opposite the first end 55a.

Here and as illustrated in , the first rotation shaft 55 is an integral part of the satellite gear 33, in other words the first rotation shaft 55 and the satellite gear 33 form only one piece.

As a variant, not shown, the first rotation shaft 55 is separated from the satellite pinion 33, in other words the first rotation shaft 55 and the satellite pinion 33 form two separate parts assembled together.

The first end 55a of the first rotation shaft 55 is housed inside the first bore 42 of the pivoting arm 35 and the second end 55b of the first rotation shaft 55 is housed inside a volume V54 provided between the two retaining tabs 54, so as to hold the satellite pinion 33 on the pivoting arm 35.

Thus, this assembly of the gear system 31 and, more particularly, of the satellite pinion 33 on the pivoting arm 35 makes it possible to guarantee disengagement of the transmission device 28 relative to the drive wheel 13, while reducing the noise of operation of the transmission device 28 and minimizing the cost of obtaining the motorized drive device 10.

In addition, the two retaining tabs 54 of the pivoting arm 35 each form a bearing surface 54a. Each of the bearing surfaces 54a is configured to be in contact, in other words is in contact, with the second end 55b of the first rotation shaft 55 of the satellite pinion 33, in particular in an assembled configuration of the gear system 31.

In this way, the pressing of the two retaining tabs 54 of the pivoting arm 35, in particular of their bearing surface 54a, against the second end 55b of the first rotation shaft 55 of the satellite pinion 33 makes it possible to guarantee a friction force between the pivoting arm 35 and the satellite pinion 33, without requiring an additional part.

Advantageously, the friction force between the pivoting arm 35 and the satellite pinion 33 is generated by friction of a cylindrical surface of the first rotation shaft 55 of the satellite pinion 33 against a concave surface of each of the retaining lugs 54 of the arm pivoting 35, in particular of their scope 54a.

Thus, the friction force between the pivoting arm 35 and the planet gear 33 is generated in a radial direction to an axis of rotation X33 of the planet gear 33.

Alternatively or in addition, the friction force between the pivoting arm 35 and the satellite pinion 33 is generated by friction of a flat surface 78 of the satellite pinion 33 against a flat surface, not visible in the figures, of each of the retaining tabs 54 of the pivoting arm 35.

In this case, the friction force between the pivoting arm 35 and the planet gear 33 is generated in a direction axial to the axis of rotation X33 of the planet gear 33.

Here, the friction force is generated only between the second end 55b of the first rotation shaft 55 of the satellite pinion 33 and the retaining lugs 54 of the pivoting arm 35.

Thus, in this case, an operating clearance is provided between the first end 55a of the first rotation shaft 55 of the satellite pinion 33 and the first bore 42 of the pivoting arm 35.

As a variant, not shown, the friction force is generated, on the one hand, between the second end 55b of the first rotation shaft 55 of the satellite pinion 33 and the retaining tabs 54 of the pivoting arm 35 and, on the other hand , between the first end 55a of the first rotation shaft 55 of the satellite pinion 33 and the first bore 42 of the pivoting arm 35. In this case, the first bore 42 is obtained by means of two retaining lugs similar to the retaining lugs 54, distant from each other and separated by a slot similar to the slot 79 provided in the pivoting arm 35.

Advantageously, the pivoting arm 35 is made of a plastic material, which can be, for example, PolyOxyMethylene, with the acronym POM, in PolyAmide 6, also called polycaprolactam, with the acronym PA 6, in PolyAmide 6.6, also called polyhexamethylene adipamide, with the sign PA 6.6.

Advantageously, the casing 50 comprises at least one stop 14, as illustrated in . In addition, each of the retaining tabs 54 of the pivoting arm 35 is configured to be placed in support, in other words is placed in support, with the stop 14 of the casing 50, when the satellite pinion 33 is meshed with the output pinion 34.

Thus, when the satellite pinion 33 is meshed with the output pinion 34, either in the first engaged state or in the second engaged state of the reduction gear 29, the pivoting arm 35 is positioned angularly relative to the casing 50, around an axis of rotation X35, by means of the stop 14 of the casing 50.

Here, the axis of rotation X35 is confused with the axis of rotation X32.

In this way, when the satellite pinion 33 is meshed with the output pinion 34, the angular positioning of the pivoting arm 35 relative to the casing 50, by means of the stop 14 of the casing 50, makes it possible to avoid operation without play of the gear system 31 and, more particularly, on the one hand, between the satellite pinion 33 and the output pinion 34 and, on the other hand, between the input pinion 32 and the satellite pinion 33. This angular positioning of the pivoting arm 35 relative to the casing 50 therefore makes it possible to avoid a loss of transmission efficiency.

Here and as illustrated in , the stop 14 is provided in the first half-shell 50a of the casing 50.

Advantageously, the casing 50 includes a single stop 14.

Advantageously, the stop 14 comprises a first contact surface 14a and a second contact surface 14b. When the satellite pinion 33 is meshed with the output pinion 34 according to the first engaged state of the reduction gear 29, one of the holding tabs 54 of the pivoting arm 35, in other words the first holding tab, is in contact with the first surface contact 14a of the stop 14. In addition, when the satellite pinion 33 is meshed with the output pinion 34 according to the second engaged state of the reduction gear 29, the other of the retaining tabs 54 of the pivoting arm 35, in other words the second retaining tab, is in contact with the second contact surface 14b of the stop 14.

Thus, the single stop 14 makes it possible to maximize the angular movement of the pivoting arm 35 relative to the casing 50, around the axis of rotation X35, between the first engaged state of the reduction gear 29 and the second engaged state of the reduction gear 29.

In this way, a movement time of the pivoting arm 35 relative to the casing 50, around the axis of rotation the disengaged state of the reduction gear 29, that is to say to make the disengaged state of the satellite pinion 33 more reliable with respect to the output pinion 34.

Furthermore, when the pivoting arm 35, in particular one of the retaining tabs 54 of the pivoting arm 35, bears against the stop 14 of the casing 50, the clamp formed by the two retaining tabs 54 of the pivoting arm 35 n is not requested.

In this way, when the pivoting arm 35, in particular one of the retaining tabs 54 of the pivoting arm 35, is supported against the stop 14 of the casing 50, a value of the friction force between the pivoting arm 35 and the satellite pinion 33 is not modified.

As a variant, not shown, the casing 50 includes two stops. In this case, each of the stops comprises one of the first and second contact surfaces 14a, 14b.

Advantageously, the pivoting arm 35 comprises a first slot 56a and a second slot 56b, as illustrated in . The first slot 56a is connected to the first bore 42 of the pivoting arm 35. In addition, the second slot 56b is connected to the volume V54 provided between the two retaining lugs 54 of the pivoting arm 35.

Thus, the first and second slots 56a, 56b of the pivoting arm 35 make it possible to respectively insert the first and second ends 55a, 55b of the first rotation shaft 55 of the satellite pinion 33 inside the first bore 42 and the volume V54, in a radial direction relative to the axis of rotation X35.

Advantageously, the pivoting arm 35 further comprises a second bore 57. The casing 50 further comprises a boss 60, as illustrated in Fig. . In addition, the boss 60 of the casing 50 is housed, in other words is configured to be housed, inside the second bore 57 of the pivoting arm 35, in particular in an assembled configuration of the motorization block 49.

Thus, the pivoting arm 35 is free to rotate relative to the casing 50, around the axis of rotation X35, by means of the second bore 57 of the pivoting arm 35 and the boss 60 of the casing 50. The axis of rotation X35 can also be called second axis of rotation.

Furthermore, when the pivoting arm 35, in particular one of the retaining tabs 54 of the pivoting arm 35, bears against the stop 14 of the casing 50, the guiding of the pivoting arm 35 relative to the casing 50, by means of the second bore 57 of the pivoting arm 35 and of the boss 60 of the casing 50, is not stressed.

In this way, when the pivoting arm 35, in particular one of the retaining tabs 54 of the pivoting arm 35, rests against the stop 14 of the casing 50, transmission forces are taken up by the stop 14 of the casing 50 and by the pivoting arm 35.

Here and as illustrated in , the boss 60 is provided in the first half-shell 50a of the casing 50.

Advantageously, when the satellite pinion 33 is meshed with the output pinion 34, in other words when the reduction gear 29 is in the first engaged state or in the second engaged state, a loss of transmission efficiency is avoided thanks to the guidance of the pivoting arm 35 relative to the casing 50, by means of the second bore 57 of the pivoting arm 35 and the boss 60 of the casing 50.

Advantageously, the pivoting arm 35 comprises a first end 35a and a second end 35b, as illustrated in . The second end 35b is opposite the first end 35a.

Advantageously, the volume V54 formed by the two retaining tabs 54 is disposed at the level of the first end 35a of the pivoting arm 35. In addition, the second bore 57 is disposed at the level of the second end 35b of the pivoting arm 35.

Advantageously, the wheel 30a of the wheel and worm system 30 and the input pinion 32 form a first assembly 61, in particular rotating around the axis of rotation X32, as illustrated in Figures 5 and 6. In addition, the first set 61 is produced using a single part.

Advantageously, the first assembly 61 is made of a plastic material, in particular by injection of the plastic material.

Advantageously, the drive wheel 13 comprises a rim 62 and a tread 63. In addition, the rim 62 of the drive wheel 13 and the output pinion 34 form a second assembly 64, in particular rotatable around the first axis of rotation X13, as illustrated in Figures 5 and 6. In addition, the second assembly 64 is produced using a single part.

Advantageously, the second assembly 64 is made from a plastic material, in particular by injection of the plastic material. In addition, the tread 63 is overmolded or assembled on the rim 62 of the drive wheel 13.

Advantageously, the first assembly 61 comprises a second rotation shaft 67. The second rotation shaft 67 comprises a first end 67a and a second end 67b. The second end 67b is opposite the first end 67a. Furthermore, each of the first and second ends 67a, 67b of the second rotation shaft 67 is held in position, in other words is configured to be held in position, in a first hole 68 of the casing 50, in particular of one or the other of the first and second half-shells 50a, 50b of the casing 50, in particular in the assembled configuration of the motor unit 49.

Thus, the casing 50 comprises two first holes 68 for receiving the first and second ends 67a, 67b of the second rotation shaft 67.

Advantageously, the second assembly 64 comprises a third rotation shaft 69. The third rotation shaft 69 comprises a first end 69a and a second end 69b. The second end 69b is opposite the first end 69a. Furthermore, each of the first and second ends 69a, 69b of the third rotation shaft 69 is held in position, in other words is configured to be held in position, in a second hole 70 of the casing 50, in particular of one or the other of the first and second half-shells 50a, 50b of the casing 50, in particular in the assembled configuration of the motor unit 49.

Thus, the casing 50 comprises two second holes 70 for receiving the first and second ends 69a, 69b of the third rotation shaft 69.

Advantageously, the second and third rotation shafts 67, 69 are identical.

Here, each of the first and second ends 67a, 67b, 69a, 69b of the second rotation shaft 67 and the third rotation shaft 69 is mounted, in other words is configured to be mounted, in one of the first and second holes 68, 70 of one or the other of the first and second half-shells 50a, 50b of the casing 50 by a force-fitting, so as to guarantee a blocking in rotation of the second rotation shaft 67 and of the third rotation shaft 69 by relation to the casing 50.

Alternatively, not shown, or in addition, each of the first and second ends 67a, 67b, 69a, 69b of the second rotation shaft 67 and the third rotation shaft 69 comprises one or more flats. The or each flat cooperates, in other words is configured to cooperate, with a rectilinear edge of one of the first and second holes 68, 70 of one or the other of the first and second half-shells 50a, 50b of the casing 50 .

Advantageously, the motorization block 49 further comprises a baffle 71. The baffle 71 is arranged between the wheel 30a of the wheel and worm system 30 and the drive wheel 13, in particular in the assembled configuration of the block of worm. motorization 49.

Thus, the chicane 71 makes it possible to avoid pollution of the tread 63 of the drive wheel 13 by grease coming from the wheel and worm system 30 and the gear system 31.

Advantageously, the chicane 71 is formed in the casing 50.

Here, the chicane 71 is produced by two walls 72 formed in one of the first and second half-shells 50a, 50b of the casing 50, in this case the second half-shell 50b as illustrated in Figures 5 and 6. In addition , the two walls 72 of the chicane 71 are arranged on either side of the second rotation shaft 67 and the third rotation shaft 69.

As a variant, not shown, the chicane 71 is made by a single wall 72 formed in one of the first and second half-shells 50a, 50b of the casing 50, in this case the second half-shell 50b. In addition, the wall 72 of the baffle 71 is arranged on either side of the second rotation shaft 67 and the third rotation shaft 69.

Thanks to the present invention, this assembly of the gear system and, more particularly, of the satellite pinion on the pivoting arm makes it possible to guarantee disengagement of the transmission device relative to the drive wheel, while reducing operating noise. of the transmission device and minimizing the cost of obtaining the motorized drive device.

Numerous modifications can be made to the embodiments described above, without departing from the scope of the invention.

As a variant, not shown, the motorized drive device 10 comprises a single holding device 37, 39.

As a variant, not shown, in the case where the rod 4 is a rail, in particular of "H" section, the first holding device 37, respectively the second holding device 39, comprises at least one hook, in particular in the shape pin. The hook is configured to be hooked, in other words is hooked, to the ring 48 of one of the retaining elements 53 of the concealment device 3, so as to hold the housing 43 relative to the rod 4.

In another variant, not shown, the hooks of the first and second holding devices 37, 39 form only one piece, which can be, for example, “U” shaped. Each of the hooks is thus formed by a branch of the single piece. In this case, each branch of the single part forming one of the hooks is configured to be hooked, in other words is hooked, to the ring 48 of one of the retaining elements 53 of the concealment device 3, of so as to keep the housing 43 suspended relative to the rod 4.

As a variant, not shown, the rod 4 can be, for example, of circular section truncated by a flat, in particular at its lower side. In such a case, the flat part of the rod 4 comprises the slot 65 and forms the first and second tracks 5a, 5b of the first surface 5, as well as the first and second tracks 6a, 6b of the second surface 6.

As a variant, not shown, the first suspension element 7 of the first holding device 37 comprises at least the first rod 58 and a first driven wheel, not shown, in other words idle mounted, replacing the first shoe 59. The first housing 8 of the housing 43 is configured to receive, in other words receives, the first rod 58 of the first suspension element 7, in particular in the assembled configuration of the motorized drive device 10. In addition, the first driven wheel is configured to be free in rotation, in other words is free to rotate, around an axis of rotation, not shown, and is configured to be brought into contact, in other words is brought into contact, with the second surface 6 of the rod 4, in particular in the assembled configuration of the concealment device 3, so as to maintain the housing 43 relative to the rod 4. By “driven”, we mean that the or each first driven wheel rotates under the effect of the movement of the motorized drive device 10 along the rod 4 and its adhesion on the rod 4, in particular on the second surface 6. This or these first driven wheels are thus driven in rotation by a translational movement of the housing 43, in the direction of movement D Thus, the or each first driven wheel makes it possible to implement a movement of the motorized drive device 10 along the rod 4 by rolling the latter on the second surface 6 of the rod 4. In an exemplary embodiment , the first holding device 37 comprises two first driven wheels. The number of first driven wheels is not limiting and may be different. It can be, for example, just one or greater than or equal to three. Advantageously, the or each first driven wheel is configured to be arranged, in other words is arranged, outside the housing 43, in particular in the assembled configuration of the motorized drive device 10. Here, in the assembled configuration of the device d concealment 3 and, more particularly, in a mounted state of the motorized drive device 10 on the rod 4, the drive wheel 13 is placed against the first side of the rod 4 and the or each first driven wheel is resting against the second side of the rod 4. Advantageously, the axis of rotation of the or each first driven wheel is located, along the longitudinal axis A4, offset relative to the first axis of rotation X13 of the drive wheel 13, when the first suspension element 7 is in the position corresponding to the locked state relative to the housing 43. Advantageously, the axis of rotation of the or each first driven wheel is orthogonal to the direction movement D of the motorized drive device 10 along the rod 4, when the first suspension element 7 is in the position corresponding to the locked state relative to the housing 43. In addition, the axis of rotation of the or each first driven wheel is parallel to the direction of movement D of the motorized drive device 10 along the rod 4, when the first suspension element 7 is in the position corresponding to the unlocked state relative to the housing 43. Advantageously, the axis of rotation of the or each first driven wheel is parallel to the first axis of rotation X13 of the drive wheel 13, when the first suspension element 7 is in the position corresponding to the locked state relative to the housing 43. In addition, the axis of rotation of the or each first driven wheel is orthogonal to the first axis of rotation X13 of the drive wheel 13, when the first suspension element 7 is in the position corresponding to the state unlocked relative to the housing 43. Advantageously, the drive wheel 13 comprises the tread 63, which can be called the first tread. The or each first driven wheel includes a second tread. In addition, the first and second treads of each of the drive and driven wheels 13 are configured to be brought into contact, in other words are brought into contact, respectively with the first and second surfaces 5, 6 of the rod 4, in particular in the assembled configuration of the concealment device 3. Advantageously, the drive wheel 13 is different from the or each first driven wheel. In particular, the drive wheel 13 has an exterior diameter greater than that of the or each first driven wheel. Advantageously, the or each first driven wheel is assembled on the first rod 58, in particular by means of a shaft, not shown. In an exemplary embodiment, this shaft is driven, on the one hand, through a central opening, not shown, of the or each first driven wheel and, on the other hand, through a hole, not shown , provided in the first rod 58. The type of assembly of the or each first driven wheel is not limiting and can be different. It can be implemented, for example, by screwing or by elastic snap-fastening. Advantageously, the second holding device 39 is identical to the first holding device 37.

As a variant, not shown, the rod 4 can be, for example, of circular section, in particular solid or hollow. In this case, the rod 4 is more commonly called a round rod or round bar. Furthermore, the rod 4 is devoid of the slot 65. In such a case, the or each first driven wheel of the first holding device 37, respectively the or each second driven wheel of the second holding device 39, is configured to be placed in support, in other words is placed in support, with a first rolling surface of the rod 4. The drive wheel 13 is configured to be placed in support, in other words is placed in support, with a second rolling surface of the rod 4. Furthermore, the first rolling surface of the rod 4 is located at an upper side of the rod 4 and the second rolling surface of the rod 4 is located at a lower side of the rod 4.

As a variant, not shown, the screen 2 is devoid of suspension elements 7, in particular when the rod 4 has a circular section, which can be truncated by a flat surface. In such a case, screen 2 includes eyelets. In addition, the rod 4 is inserted through the eyelets of the screen 2, so as to suspend the screen 2 in relation to the rod 4.

As a variant, not shown, the wall 9 further comprises at least one attachment element and, more particularly, two attachment elements. In addition, the or each attachment element is configured to receive, in other words receives, one of the hooks 75, so as, on the one hand, to suspend the screen 2 relative to the rod 4 and, more particularly , relative to the retaining elements 53 and, on the other hand, to cause the movement of the screen 2 simultaneously with the movement of the motorized drive device 10 relative to the rod 4, when the motorized drive device 10 is activated electrically or when the motorized drive device 10 is activated manually. The or each fastening element is made in the form of a hook.

As a variant, not shown, in the case where the concealment device 3 comprises two screens 2 and a single rod 4, the concealment device 3 comprises two motorized drive devices 10. In the assembled configuration of the concealment device 3, a first motorized drive device 10 is configured to be held on the rod 4, in other words suspended from the rod 4, and is configured to move along the rod 4, so as to close or open a first screen 2. In addition, a second motorized drive device 10 is configured to be held on the rod 4, in other words suspended from the rod 4, and is configured to move along the rod 4, so as to close or open a second screen 2.

In addition, the embodiments and variants envisaged can be combined to generate new embodiments of the invention, without departing from the scope of the invention.

Claims (10)

Motorized drive device (10) of a concealment device (3),
the motorized drive device (10) comprising at least one motor unit (49),
the motorization block (49) comprising at least:
- an electric motor (11),
- a transmission device (28), the transmission device (28) being configured to be connected to the electric motor (11), and
- a drive wheel (13), the drive wheel (13) being configured to be driven in rotation, around a first axis of rotation (X13), by means of the electric motor (11) and the device transmission (28), and to be brought into contact with a first surface (5) of a rod (4) of the concealment device (3), so as to move the motorized drive device (10) along the rod (4) following a direction of movement (D),
the transmission device (28) comprising a reducer (29),
the reducer (29) comprising:
- a wheel and endless screw system (30), and
- a gear system (31),
the wheel and worm screw system (30) comprising:
- a wheel (30a), and
- a screw (30b), the wheel (30a) being meshed with the screw (30b),
the gear system (31) comprising:
- a pivoting arm (35),
- an input pinion (32), the wheel (30a) of the wheel and worm system (30) being integral in rotation with the input pinion (32), the pivoting arm (35) being connected to the pinion entry (32),
- a planet gear (33), the planet gear (33) being mounted on the pivoting arm (35), and
- an output pinion (34), the satellite pinion (33) being configured to be meshed with the output pinion (34), depending on an angular orientation of the pivoting arm (35) relative to the input pinion ( 32), the output pinion (34) being integral with the drive wheel (13),
characterized
in that the pivoting arm (35) comprises at least:
- a first bore (42), and
- two retaining tabs (54),
in that the planet gear (33) comprises a first rotation shaft (55), the first rotation shaft (55) comprising a first end (55a) and a second end (55b), the second end (55b) being opposite at the first end (55a),
and in that the first end (55a) of the first rotation shaft (55) is housed inside the first bore (42) of the pivoting arm (35) and the second end (55b) of the first rotation shaft (55 ) is housed inside a volume (V54) provided between the two retaining lugs (54), so as to hold the satellite pinion (33) on the pivoting arm (35). Motorized drive device (10) of a concealment device (3) according to claim 1, characterized
in that the motor unit (49) further comprises a casing (50),
in that the casing (50) comprises at least one stop (14),
and in that each of the retaining tabs (54) of the pivoting arm (35) is configured to be placed in abutment with the stop (14) of the casing (50), when the satellite pinion (33) is meshed with the gear pinion. exit (34). Motorized drive device (10) of a concealment device (3) according to claim 1 or according to claim 2, characterized in that the wheel (30a) of the wheel and worm screw system (30) and the pinion input (32) form a first assembly (61), the first assembly (61) being produced by means of a single part. Motorized drive device (10) of a concealment device (3) according to claim 2 and according to claim 3, characterized
in that the first assembly (61) comprises a second rotation shaft (67),
in that the second rotation shaft (67) comprises a first end (67a) and a second end (67b), the second end (67b) being opposite the first end (67a),
and in that each of the first and second ends (67a, 67b) of the second rotation shaft (67) is held in position in a first hole (68) of the housing (50). Motorized drive device (10) of a concealment device (3) according to any one of claims 1 to 4, characterized
in that the drive wheel (13) comprises:
- a rim (62), and
- a tread (63),
and in that the rim (62) of the drive wheel (13) and the output pinion (34) form a second assembly (64), the second assembly (64) being produced by means of a single part. Motorized drive device (10) of a concealment device (3) according to claim 2 and according to claim 5, characterized
in that the second assembly (64) comprises a third rotation shaft (69),
in that the third rotation shaft (69) comprises a first end (69a) and a second end (69b), the second end (69b) being opposite the first end (69a),
and in that each of the first and second ends (69a, 69b) of the third rotation shaft (69) is held in position in a second hole (70) of the housing (50). Motorized drive device (10) of a concealment device (3) according to any one of claims 1 to 6, characterized
in that the motorization block (49) further comprises a baffle (71),
and in that the chicane (71) is arranged between the wheel (30a) of the wheel and worm system (30) and the drive wheel (13). Motorized drive device (10) of a concealment device (3) according to claim 2 and according to claim 7, characterized in that the baffle (71) is formed in the casing (50). Motorized drive device (10) of a concealment device (3) according to any one of claims 1 to 8, characterized
in that the wheel and worm system (30) has a first reduction ratio,
in that the gear system (31) has a second reduction ratio,
and in that the first reduction ratio is greater than the second reduction ratio, the second reduction ratio being strictly less than ten. Concealment device (3) comprising at least:
- a screen (2),
- a rod (4), and
- a motorized drive device (10) according to any one of claims 1 to 9, the screen (2) being suspended from the rod (4) and being movable along the rod (4), by means of the motorized drive device (10).