FR3112159A1 - Electromechanical actuation device for an opening with permanent magnets carried by at least one wheel of the clutch - Google Patents

Abstract

An electromechanical actuating device (10) is described for an opening (200) of the door or window type, for rotating a rotor of a rotary mechanism of the opening. It includes a clutch (16) between an actuator (15) and the rotor of the rotating mechanism. The clutch (16) has at least one magnetically active wheel chosen from among the drive wheel (17) driven by the actuator (15) and at least one satellite wheel (27) coupling to a driven wheel (18) driving the rotor of the rotating mechanism. This magnetically active wheel carries at least one permanent magnet (29) arranged in such a way that the latter is rotatable relative to the tilting support (19) of the clutch (16) together with the magnetically active wheel which carries this permanent magnet (29). Picture 6

Description

Electromechanical actuation device for a sash with permanent magnets carried by at least one wheel of the clutch

Technical field of the invention

The present invention relates to an electromechanical actuating device for an opening of the door or window type, the electromechanical actuating device being intended to drive in rotation a rotor of a rotary mechanism of the opening such as a cylinder of a lock mechanism.

The invention applies in particular to the fields of locks which comprise a lock cylinder equipped with a rotor with, on the exterior side, an exterior lock entry allowing the introduction of a key accepted by the lock and, on the interior side , either an interior lock entry allowing the introduction of a key accepted by the lock, or a coupling member allowing the connection of the rotor with a manual button. The rotational actuation of the rotor of the lock cylinder by means of a key or the manual button makes it possible to control the movement of a spring bolt and/or a deadbolt of the lock in order to open or close the sash and/or lock or unlock the lock.

The opening may in particular relate to a movable part of a window or a door. In the case of a window, the rotary mechanism to which the electromechanical actuating device is intended to be coupled in rotation may be the rotor of the handle of this window, whether it is an opening of the window according to a vertical axis or along two axes, respectively vertical and horizontal, as is the case for so-called tilt and turn windows.

State of the art

Conventionally, a door lock comprises a lock cylinder having a stator fixedly mounted on the opening and a rotor rotatably mounted in the stator so as to pass through the thickness of the opening. The rotational actuation of the rotor of the lock cylinder can actuate in translation a deadbolt of the lock, the latter being movable in translation relative to the stator and capable of locking the lock by insertion into a striker integral with a fixed frame, or jamb, on which the sash is movably mounted. Such a deadbolt is capable of varying between a locking position where it is deployed and an unlocking position where it is retracted.

The door lock can also comprise a handle pivotally mounted on the leaf or a rotary manual button to actuate at least one spring-loaded bolt movable in translation in the stator of the lock. Such a spring bolt is capable of varying between a closed position where it is deployed and an open position where it is retracted. Actuating the handle or the rotary manual knob moves the spring-loaded bolt from the closed position to the open position, while the reverse movement can be done thanks to an internal spring in the lock. The rotational actuation of the lock cylinder rotor can also be used to operate this spring bolt. Conventionally, the spring-loaded bolt includes a bevelled portion, which by reaction against the fixed frame when closing the mobile leaf, causes the bolt to retract in the leaf against the action of the internal spring.

The rotor of the lock cylinder comprises, on the exterior side, an exterior lock entry allowing the introduction of a key admitted by the lock and, on the interior side, either an interior lock entry allowing the introduction of an admitted key by the lock, or a rotor coupling member allowing the installation of a manual button so as to couple in rotation the rotor of the lock cylinder with the manual button. The rotational actuation of the rotor of the lock cylinder by means of a key or the manual button makes it possible to control the movement of the spring bolt and/or the deadbolt of the lock, in particular in order to open or close the opening by moving the spring bolt and/or locking or unlocking the lock by moving the deadbolt.

There are electromechanical devices intended to motorize such locks, for example like the solution described in the document EP2762661A1. These electromechanical lock actuation devices are intended to be fixed on the interior side of the leaf in a manner cooperating with the rotor of the lock to be motorized with a view to its actuation in order to control its locking and/or its unlocking by moving the deadbolt and/or to control its opening and/or closing by moving the spring bolt.

The electromechanical lock actuation devices generally comprise a frame to be fixed on one face of the opening, the lock of which is to be motorized, and a drive member movable in rotation relative to the frame and intended to be coupled to one end of the rotor. of the lock cylinder. They also comprise a source of electrical energy for supplying, on the one hand, an electric actuator suitable for driving the drive member in rotation, and a programmable control unit suitable for communication with the outside, in particular with a view to reception of external instructions and the transmission of outgoing information. The control unit provides control of the electric actuator taking into account, among other things, these instructions and this information.

The cooperation between the rotor of the lock cylinder and the drive member internal to the electromechanical device for actuating the lock can be achieved by placing one of the keys accepted by the lock cylinder at the level of the lock cylinder. interior lock entry, this key then being in engagement with the drive member to be integral in rotation with one another. Alternatively, the cooperation between the rotor of the lock cylinder and the drive member internal to the electromechanical lock actuation device can take place via the aforementioned coupling member, which can be secured to the rotor of the lock cylinder and is initially intended for the installation of the manual button also mentioned above. Once the manual button has been removed, the coupling member can be brought into engagement with the drive member internal to the electromechanical actuation device so that these two elements are integral in rotation with each other.

To allow manual actuation of the drive member and/or to avoid damage to the actuator in the event that external forces are applied to the rotor of the lock cylinder, for example in the event of a break-in, most electromechanical devices also include a clutch interposed between the actuator and the drive member.

Such a clutch conventionally varies between at least one engaged configuration in which there is a mechanical transmission link between the drive member and the actuator, and a disengaged configuration in which this mechanical transmission link is absent.

The clutch can be designed so as to be able to adopt a first engaged configuration in which the actuator is capable of driving the drive member in rotation in a first direction of rotation and a second engaged configuration in which the actuator is capable of rotating the drive member in a second direction of rotation opposite to the first direction of rotation.

The clutch can operate according to friction principles, for example by taking up the teachings of document FR3028282A1.

Alternatively, the clutch can be based on the known principle of a tilting lyre, which solution exploits the presence of a tilting support relative to the chassis. This type of solution is for example described in the documents FR2693757A1 and WO2017/114534A1.

In order to be able to convert a movement of one of the wheels of the clutch into a tilting movement of the tilting support, while also allowing rotation of this wheel when the tilting support is locked in rotation in the engaged configuration, it is known to arrange a clutch device between the tilting support and at least one of the clutch wheels. When the mechanical torque transmitted to the wheel equipped with such a clutch device is lower than the release value provided by the clutch device, the tilting support is rotated in a movement resulting from the rotation of this wheel. On the other hand, when the mechanical torque becomes greater than the release value, rotation of the wheel becomes possible with respect to the tilting support when the latter is angularly blocked, when one of the engaged configurations is adopted.

Conventionally, the design of such a clutch device is based on the use of the principle of mechanical friction, as is the case in document WO2017/114534A1. Some known solutions use spring washers exerting axial pressure forces between the wheel concerned and the tilting support, these forces being applied to silicone washers.

A first drawback of this type of solution is that the principles of friction inevitably induce phenomena of wear of the parts involved. This results in maintenance problems, even malfunction, which is not practical and can be expensive.

Furthermore, the very principle of friction, and all the more so as a consequence of these wear phenomena, the release value which defines the operation of the friction clutch device is not precise and is, on the contrary, likely to evolve over time in a random and uncontrolled manner. This can lead to malfunctions of the electromechanical device, such as the impossibility of changing from a disengaged configuration to a clutched configuration, or even excessive braking or even locking of the wheel concerned, these situations not being acceptable.

Another problem to be solved is to ensure that when manual actuation of the lock is desired, the clutch occupies the disengaged configuration with certainty. To this end, solutions using a magnetic force have already been devised.

Although document WO2017/114534A1 provides for a system delivering a magnetic force by electromagnet favoring the elimination of mechanical cooperation between the clutch wheel and the drive member, this solution does not ensure any maintenance in the disengaged configuration.

Document FR2693757A1 provides for the presence of a magnetic return system to magnetically urge the tilting support towards the angular position corresponding to the disengaged configuration. This system uses a permanent magnet carried by the frame and a permanent magnet carried by the tilting support. But such an organization is only able to exercise its recall function in a relatively small angular range of pivoting of the tilting support. As soon as the tilting support deviates a little too much from the configuration requested via the magnetic return, the magnetic force becomes too weak and is easily overcome. This risk is likely to appear in the event of strong vibrations or a major shock suffered by the electromechanical device, for example very simply when the opening slams against the frame.

There is therefore a need to avoid in a reliable and certain manner, especially in the event of vibrations or shocks undergone, any risk of seeing the clutch pass from the disengaged configuration to one of the engaged configurations, which would risk making all non-operational.

If the above issues have been presented in connection with the particular case of a lock-type rotary mechanism and a door-type opening, the fact remains that they can very well arise for other types of rotary mechanisms. a door or for a window.

Object of the invention

The present invention aims to provide an electromechanical actuation device for a door or window type opening which responds to the problems raised by the state of the art as presented above, in particular which is reliable, requires little maintenance, is economical, and avoids any risk of malfunction, in particular but not exclusively in the event of shock or vibration.

This object can be achieved by providing an electromechanical actuation device for a door or window type leaf, the electromechanical actuation device being intended to drive in rotation a rotor of a rotary mechanism of the leaf such than a cylinder of a lock mechanism, the electromechanical actuation device comprising:
- a frame intended to be fixed on one side of the opening,
- a drive member, rotatable relative to the frame, and adapted to be coupled in rotation with the rotor of the rotary mechanism when the frame is fixed to the face of the opening,
- an actuator comprising an electric motor and making it possible to electrically rotate the drive member selectively in a first direction of rotation and in a second direction of rotation,
- a clutch linking the electric motor to the drive member,
wherein the clutch comprises:
- a rotating drive wheel relative to the frame and driven in rotation by the actuator,

- a driven wheel connected in rotation with the drive member,
- a tilting support capable of tilting bidirectionally relative to the frame around a tilting axis,
- a coupling device comprising at least one satellite wheel engaged with the drive wheel and rotatable relative to the tilting support along an axis of rotation eccentric relative to the axis of tilting, the axis of rotation of said au at least one satellite wheel moving around the tilting axis together with the tilting support,
wherein the clutch varies, by tilting the tilting support, between:
- a first clutched configuration in which a satellite wheel of the coupling device is in engagement with the driven wheel in a first circumferential zone of the driven wheel so that the actuator drives, via the clutch, the rotor of the rotary mechanism in the first direction of rotation,
- a second clutched configuration in which a satellite wheel of the coupling device is in engagement with the driven wheel in a second circumferential zone of the driven wheel so that the actuator drives, via the clutch, the rotor of the rotary mechanism in the second direction of rotation,
- a disengaged configuration in which no satellite wheel of the coupling device is engaged with the driven wheel,
wherein at least one magnetically active wheel selected from the group consisting of the drive wheel and said at least one satellite wheel of the coupling device carries at least one permanent magnet arranged in such a way that said at least one permanent magnet is movable in rotation relative to the tilting support together with the magnetically active wheel which carries said at least one permanent magnet.

Some preferred but non-limiting aspects are as follows.

According to one embodiment, the tilting axis around which the tilting support tilts relative to the frame coincides with the axis of the drive wheel.

According to one embodiment, said at least one permanent magnet generates a generally oriented magnetic field, in the vicinity of at least one of the axial faces of the magnetically active wheel which carries it, substantially parallel to the axis of rotation of the magnetically active wheel which carries said at least one permanent magnet.

According to one embodiment, the coupling device comprises first and second separate satellite wheels, mounted for rotation with respect to the tilting support around first and second axes of rotation arranged on either side of the driving wheel and in engagement with the drive wheel, the first planet wheel being in mesh with the driven wheel in its first circumferential zone in the first engaged configuration, the second planet wheel being in mesh with the driven wheel in its second circumferential zone in the second engaged configuration, no first and second planet wheels not meshing with the driven wheel in the disengaged configuration, and in which at least one magnetically active wheel chosen from among the first planet wheel and the second planet wheel carries at least one magnetic assembly including at least two permanent magnets arranged at respective locations distributed angularly around the axis of rotation of the magnetically active wheel which carries said magnetic assembly, the location of each of the permanent magnets of said magnetic assembly being radially offset with respect to the axis of rotation of the magnetically active wheel which carries it so that the permanent magnet is rotatable with respect to the tilting support together with the magnetically active wheel which carries it.

According to one embodiment, each of the first and second planet wheels comprises such a magnetic assembly, which comprises a plurality of permanent magnets angularly distributed around the axis of rotation of the corresponding magnetically active wheel.

According to one embodiment, each magnetic assembly comprises at least four separate permanent magnets distributed angularly with constant pitch around the axis of rotation of the magnetically active wheel which carries said magnetic assembly.

According to one embodiment, the electromechanical actuation device is such that:
- the tilting support comprises a magnetic element capable of cooperating magnetically with each permanent magnet carried by each magnetically active wheel, when the magnetic element is located in the magnetic field generated by the corresponding permanent magnet, in a way creating a magnetic force interaction between the magnetic element and the permanent magnet considered,
- the clutch comprises a magnetic clutch device associated with each magnetically active wheel,
- each magnetic clutch device consists of the magnetic element and the at least one permanent magnet carried by the associated magnetically active wheel,
- the magnetic clutch device resulting from the magnetic force of interaction between each permanent magnet carried by the associated magnetically active wheel and the magnetic element,
- each magnetic clutch device applies a magnetic return torque, around the axis of rotation of the magnetically active wheel associated with said magnetic clutch device, between the tilting support and the magnetically active wheel associated with said magnetic clutch device , the magnetic restoring torque having a predetermined nominal value depending on the magnetic force of interaction between each permanent magnet carried by the associated magnetically active wheel and the magnetic element,

• each magnetic clutch device ensures that the tilting support and the magnetically active wheel associated with said magnetic clutch device are rotationally coupled when the mechanical torque applied to said associated magnetically active wheel is less than the nominal value, and that the tilting support and said associated magnetically active wheel are rotationally decoupled when the mechanical torque applied to said associated magnetically active wheel is greater than or equal to the nominal value.

According to one embodiment, for each magnetically active wheel, at least two permanent magnets are located, whatever the angular position of the magnetically active wheel considered with respect to the tilting support, plumb with the magnetic element with the interposition of a predetermined air gap counted parallel to the axis of rotation of said magnetically active wheel and comprised between 0.6 and 1 mm, and more preferably substantially equal to 0.8 mm.

According to one embodiment, the magnetic element of the tilting support consists of a plate comprising a ferromagnetic material arranged plumb with at least one of the axial faces of each magnetically active wheel with the interposition of a predetermined interval comprised between 0.2 and 0.6 mm, and more preferably substantially equal to 0.4 mm.

According to one embodiment, the electromechanical actuation device is such that:
- the chassis comprises at least one static magnetic member capable of being positioned, when the clutch occupies its disengaged configuration, in the magnetic field generated by at least one permanent magnet of the at least one magnetically active wheel, creating a magnetic force return between the static magnetic member and this permanent magnet,
- a magnetic return device consists of said at least one static magnetic member and the at least one permanent magnet cooperating magnetically with said at least one static magnetic member, the magnetic return device resulting from all the magnetic return forces present ,
- the magnetic return device applies a magnetic return torque, around the tilting axis, between the tilting support and the chassis, this mechanical return torque having a predetermined threshold value depending on the magnetic return forces applied,
- the tilting support is stabilized, in the chassis, in an angular position corresponding to the disengaged configuration of the clutch, under the effect of the magnetic return torque,
- when the actuator is activated, the tilting support tilts around the tilting axis relative to the frame, depending on the direction of rotation of the electric motor, overcoming the predetermined threshold value of the mechanical return torque, up to upon adopting one of the first engaged configuration and the second engaged configuration.

According to one embodiment, the frame carries two separate static magnetic members respectively associated with two magnetically active wheels constituted respectively by the first and second planet wheels, and in which for each magnetically active wheel, at least one of its permanent magnets comes position itself opposite the associated static magnetic member, when the tilting support occupies an angular position relative to the chassis corresponding to the disengaged configuration of the clutch, with the interposition of a predetermined air gap counted parallel to the tilting axis between 0.6 and 1 mm, and more preferably substantially equal to 0.8 mm.

According to one embodiment, whatever the angular position of the tilting support between its extreme positions corresponding to the first and second clutched configurations of the clutch, the at least one static magnetic member is transversely offset by a distance between 1 and 2 mm relative to the plumb of the magnetic element of the tilting support considered parallel to the axis of tilting, avoiding a magnetic interaction between the at least one static magnetic member and the magnetic element.

According to one embodiment, in each of the first and second clutched configurations of the clutch, the trajectory taken by each permanent magnet carried by the at least one magnetically active wheel during the rotation of said magnetically active wheel relative to the tilting support under the effect of the drive by the actuator is transversely offset by a minimum distance of between 3 and 5 mm with respect to the plumb of at least one static magnetic member considered parallel to the axis of rotation of said wheel magnetically active.

According to one embodiment, the at least one static magnetic member comprises at least one permanent magnet whose magnetic pole is opposite the magnetic pole of the at least one permanent magnet carried by the at least one magnetically active wheel.

Brief description of the drawings

Other aspects, objects, advantages and characteristics of the invention will appear better on reading the following detailed description of preferred embodiments thereof, given by way of non-limiting example, and made with reference to the appended drawings. on which ones :

Figure 1 is a perspective view of an example of a lock mounted on a door leaf.

FIG. 2 is a partial front view of an example of an electromechanical actuation device according to the invention, in the disengaged configuration.

Figure 3 is a perspective and exploded view of the clutch used in the device of Figure 2.

Figure 4 is a perspective view of the elements of Figure 2.

Figure 5 is a schematic view illustrating the clutch in the disengaged configuration and the wheel of the drive member.

FIG. 6 is a perspective view showing the device of the preceding figures at the level of a wheel of the clutch, which is in the disengaged configuration.

Figure 7 is a view identical to Figure 2, but in one of the two engaged configurations.

Figure 8 is a schematic view illustrating the clutch in one of the engaged configurations and the wheel of the drive member.

detailed description

In FIGS. 1 to 8 and in the rest of the description, the same references represent identical or similar elements. Moreover, the different embodiments and variants are not mutually exclusive and can be combined with each other.

The electromechanical actuation device 10 which is visible in FIGS. 2 to 8 is intended to be mounted on a face 201 of an opening 200 of the door or window type. The electromechanical actuation device 10 is intended to drive in rotation a rotor of a rotary mechanism of the opening.

In the particular example which is not limiting of the field of application, the opening 200 is a door and the rotary mechanism of which a rotor is to be driven thanks to the electromechanical actuation device 10 is a cylinder of a lock mechanism.

Consequently, in the example illustrated here, the opening 200 is for example a door pivotally mounted on a fixed frame or jamb (not shown) connecting the opening 200 to a fixed wall. For example, the face 201 corresponds to a face of the opening 200 intended to be positioned on the inside of the room closed by the opening 200 and the fixed wall. As can be seen, the opening 200 is here equipped with a lock 100, having a lock cylinder whose rotor is to be driven via the electromechanical actuation device 10. Alternatively, without limitation, the opening 200 could be a casement of a window, pivoting or sliding, or tilt and turn assembly. The principles are indeed identical between a rotary mechanism to be motorized in the form of a rotor of a lock cylinder of a door lock (to lock and unlock the lock) and a rotary mechanism to motorized in the form of a window handle (to lock and unlock the window), in order to carry out these operations without having to overcome the motorization due to the automatic release. It is irrelevant if, in the case of a tilt-and-turn window, the fact of turning the handle also causes the tilt-and-turn opening and closing of the window by a mechanical return of the rotation of the handle. The disengagement obtained by the electromechanical actuating device 10 is necessary to be able to manually perform the rotary movement of the lock in the case of the door from the outside via a key or from the inside via the actuating button for this purpose , or to manually perform the rotary movement of the window handle on the inside.

The lock 100 comprises, in known manner, for example as described in document EP2762661A1, a lock cylinder having a stator mounted on the opening 200 and a rotor mounted for rotation in the stator so as to pass through the thickness of the opening 200. The lock 100 comprises at least one primary lock fitted with a spring-loaded bolt 104 (also known by the terminology “end-of-travel bolt” or even “closing bolt”) mechanically coupled to the rotor of the lock cylinder and capable of varying, for example by rotation of the rotor, between a closed position in which the spring bolt 104 is deployed towards the outside of the lock 100 and an open position in which the spring bolt 104 is retracted towards the inside the lock 100. The lock 100 also comprises a spring (not visible in the figures) urging the spring bolt 104 towards the closed position and such that the passage from the closed position to the open position by rotation on the rotor is practiced in opposition to the action of this spring. As seen in Figure 1, the spring bolt 104 comprises a beveled portion, which by reaction against the fixed frame when closing the opening 200, causes a retraction of the spring bolt 104 in the opening 200 against the action of the internal spring, also involving the passage from the closed position to the open position without requiring rotation of the rotor for this purpose.

In this particular example, in the closed position, because it is deployed, the spring-loaded bolt 104 is able to be inserted into a striker fixed to the fixed frame on which the opening 200 is mounted in order to maintain the opening 200 closed with respect to the fixed wall. On the other hand, in its open position, because it is retracted, the spring-loaded bolt 104 is no longer inserted in the keeper and the opening of the opening 200 is possible.

The lock 100 can also comprise a secondary lock equipped with a deadbolt 103 (otherwise known under the terminology "bit") mechanically coupled to the rotor 101 of the lock cylinder and capable of varying, by rotation of the rotor 101, between a position of locking in which the deadbolt 103 is deployed relative to the rest of the lock 100 and a locking position in which the deadbolt 103 is retracted into the lock 100. Over a certain angular stroke, the rotational actuation of the rotor 101 actuates in translation this deadbolt 103 from one position to another. The deadbolt 103 is also able to be inserted in a retractable manner, in the locking position, in a recess of the striker integral with the fixed frame on which the opening 200 is mounted, in order to lock or unlock the lock 100.

The arrangement of such bolts 103, 104 is for example described in the document FR2795120A1. The lock 100 may also include a handle 105 pivotally mounted on the opening 200 to actuate at least the spring bolt 104.

The rotor of the lock cylinder may comprise, on the exterior side, an exterior lock entry allowing the introduction of a key accepted by the lock 100.

The rotor of the lock cylinder may comprise, on the interior side, either an interior entrance allowing the introduction of a key (not shown) accepted by the lock 100, or a coupling member 107, an example of which is visible in FIG. , adapted to be driven in rotation, for example by a manual button (not shown). The coupling member 107 is for example a tail or a cylinder fork.

For the motorized drive via the electromechanical actuating device 10, the rotational coupling with the rotor of the lock cylinder of the lock 100 can be done either by means of the key previously inserted into the interior entry of the lock 100, or via the coupling member 107, subject to the prior removal of the aforementioned manual button.

The rotational actuation of the rotor of the lock 100 in a motorized manner makes it possible to control the movement of the spring bolt 104 between the open and closed positions in order, respectively, to open and close the opening 200 and/or to control the movement of the deadbolt 103 between the locking and unlocking positions in order, respectively, to lock and unlock the lock 100 and therefore the opening 200 with respect to the fixed frame.

The electromechanical actuation device 10 comprises a frame 11 in one or more parts, intended to be fixed on the face 201 of the opening 200. The frame 11 is provided with a proximal face 12 and fastening elements 13 allowing to fix the frame 11 on the opening 200 in a way placing the proximal face 12 of the frame 11 against the face 201 of the opening 200. The fixing elements 13 are for example in the form of holes each suitable for installation of a screw retaining the frame 11 against the opening 200 by coming into engagement in the opening 200. It is possible to provide the presence of a damping material between the face 201 of the opening 200 and the face proximal 12 of the frame 11, to ensure a damped mechanical connection between the electromechanical actuation device 10 and the opening 200 for vibration and mechanical decoupling.

The electromechanical actuating device 10 comprises a drive member 14 movable in rotation relative to the frame 11 and intended to be coupled to one end of the rotor of the lock cylinder of the lock 100, in particular at its end on the interior side. , when the frame 11 is fixed on the face 201 of the opening 200. This mechanical coupling can, as explained above, be achieved by means of a key previously inserted into the interior entry of the lock 100 or via the coupling member 107. Depending on the variant adopted, the drive member 14 is adapted accordingly and comprises suitable rotational coupling elements for cooperation either with the key or with the member coupling 107.

The electromechanical actuating device 10 may also comprise a rotary operating button (not shown) suitable for manual grip and to manually drive the drive member 14, ultimately allowing the rotor of the lock cylinder to be rotated manually. of the lock when the latter is coupled in rotation to the drive member 14.

The electromechanical actuation device 10 comprises an actuator 15 comprising an electric motor and making it possible to electrically drive the drive member 14 in rotation either in a first direction of rotation adapted to move the spring bolt 104 from its closed position. towards its open position and/or move the deadbolt 103 from the locking position to the unlocking position, or in a second direction of rotation opposite to the first direction of rotation allowing passage of the spring bolt 104 from the position d opening to the closed position and/or controlling the movement of the deadbolt 103 from its unlocked position to the locked position.

In order to be able to manually rotate the rotor of the lock cylinder of the lock by means of the operating button of the electromechanical actuating device 10 or by the external key, it is necessary to uncouple the drive member 14 by relative to the actuator 15. The electromechanical actuation device 10 comprises, for this purpose, a clutch 16 linking the electric motor of the actuator 15 to the drive member 14.

The electromechanical actuation device 10 comprises an autonomous source of electrical energy, for example on battery, accumulator or cell, to supply on the one hand the actuator 15, on the other hand a programmable electronic control unit, of the microcontroller type. , suitable for communication with the outside via means of communication of the radio frequency, wifi, Bluetooth type, or equivalent such as for example ZIGBEE, Zwave or proprietary protocols, in particular with a view to receiving external instructions and transmitting data. outgoing information. The electronic control unit controls the actuator 15 based on these instructions and this information and as a function of any sensors integrated into the electromechanical actuation device 10, for example force sensors, position, distance sensors, speed sensors or presence sensors. The source of electrical energy can also be used to power these various sensors if necessary. The electronic control unit contains all the algorithms necessary for the operation of the assembly, these algorithms developing the control strategy of the various actuators including the actuator 15, according to the external instructions and the information received from the various sensors mentioned above. . These provisions are standard in the field and within the reach of those skilled in the art who are able to adapt these elements.

The clutch 16 varies between a disengaged configuration and two different engaged configurations suitable for rotation of the drive member 14 by the actuator 15. In the disengaged configuration, the electric motor of the actuator 15 is not not coupled to the drive member 14. Conversely, in a first engaged configuration, the electric motor of the actuator 15 is coupled to the drive member 14 to ensure the rotational drive of the drive member 14 electrically via the electric motor of actuator 15 in the first direction of rotation. In a second engaged configuration, the electric motor of the actuator 15 is coupled to the drive member 14 to ensure the rotational drive of the drive member 14 electrically via the electric motor of the actuator 15 in the second direction of rotation.

As can be seen in FIGS. 2 to 8, the clutch 16 comprises a drive wheel 17 rotatable with respect to the frame 11 and driven in rotation by the actuator 15. Typically, the drive wheel 17 is mounted in free rotation on the frame 11 and is itself driven in rotation by the output of a speed reducer whose input is driven in rotation by an output shaft of the electric motor of the actuator 15.

The clutch 16 also comprises a driven wheel 18 connected in rotation with the drive member 14. Typically, the driven wheel 18 is integral in rotation with the drive member 14 around the axis of rotation of the drive member 14 with respect to frame 11, this axis of rotation being moreover intended to be substantially aligned, in use, with the axis of rotation of the rotor of the rotary mechanism of the leaf. By way of example, the driven wheel 18 can be formed by elements coming from material with the rest of the drive member 14.

The clutch 16 also comprises a tilting support 19 capable of tilting in a bidirectional manner with respect to the frame 11 around a tilting axis 20. According to one embodiment facilitating the transmission of movements and limiting internal losses, the axis of tilting 20 around which the tilting support 19 tilts relative to the frame 11 coincides with the axis of the driving wheel 17. It remains however that it would be possible to provide that the tilting axis 20 is positioned between the driving wheel 17 and the driven wheel 18, for example by being positioned on a straight line passing through the axis of rotation of the driving wheel 17 and through the axis of rotation 22 of the driven wheel 18. The axis of tilting 20 is parallel to the axis of rotation of drive wheel 17 and parallel to axis of rotation 22 of driven wheel 18.

With a view to manual drive, provision may be made for the previously mentioned rotary operating button, which is not illustrated as such, to be integral with a drive wheel 23 positioned around the electric motor of the actuator 15. This drive wheel 23, when it is rotated by manual force via the rotary operating button which comes to oversee the drive wheel 23, rotates the driven wheel 18 via an intermediate wheel absent in the figures, engaged both with the drive wheel 23 and with the driven wheel 18. In other words, the axis of the operating button is offset with respect to the axis of the organ of drive 14. The fact that the drive wheel 23 and the actuator 15 are housed in the rotary operated button makes it possible to optimize the general size and makes it possible to avoid phenomena of jamming of fingers for a hand actuating the handle 105. The transmission from the drive wheel 23 to the r Driven oue 18 is possible in particular when the clutch 16 has previously been placed in the disengaged configuration.

According to a particular embodiment, the electromechanical actuation device 10 comprises a mechanical torque limiting mechanism 24 which varies between a deactivated configuration in which the operating button is coupled in rotation with the drive wheel 23 and an activated configuration wherein the operating button and the drive wheel 23 are separated in rotation. The activated configuration is automatically adopted as soon as a mechanical torque having a value greater than a predetermined value for which the mechanical torque limiting mechanism 24 is designed is manually applied to the operating button and the deactivated configuration is automatically adopted; otherwise, it that is to say as long as the mechanical torque applied manually to the operating button is less than or equal to this predetermined value.

The presence of the mechanical torque limiting mechanism 24 is advantageous in order to avoid any risk of deterioration of the transmission between the operating button and the drive member 14 when very high forces are applied to the operating button, in particular in the event of break-in, or if the rotor of the rotating mechanism seizes.

According to a non-limiting embodiment, the mechanical torque limiting mechanism 24 comprises at least one radially movable latching projection 25 able to be inserted retractably into a complementary locking notch formed in the operating button. Each latching projection 25 is biased radially towards the inside of the locking notch by elastic means 26. The elastic means 26 are for example constituted by an oblong-shaped part visible in Figure 2 made of an elastically deformable material, the two latching projections 25 being arranged projecting from the two large edges of this part. The shape and material of the oblong piece allow in particular to adjust the predetermined value beyond which the operating button is uncoupled in rotation with respect to the drive wheel 23.

The clutch 16 also comprises a coupling device carried by the tilting support 19, globally positioned between the drive wheel 17 and the driven wheel 18 and capable of carrying out a selective coupling of the drive wheel 17 to the driven wheel 18. More precisely, this coupling device comprises at least one satellite wheel 27 in permanent engagement with the drive wheel 17 and mobile in rotation with respect to the tilting support 19 according to an axis of rotation 28 eccentric with respect to the tilting axis 20. axis of rotation 28 of said at least one satellite wheel 27 thus moves around the tilting axis 20 together with the tilting support 19. By tilting, the tilting support 19 moves the axis of rotation 28 of each satellite wheel 27 along a segment of circular translation, the angle covered being equal to the angle of tilting of the tilting support 19 relative to the frame 11. It is understood here that the number of satellite wheel 27 can be equal to 1, ma is more preferably greater than or equal to 2 in order to limit the angular amplitude of tilting of the tilting support 19 to pass from the first engaged configuration to the second engaged configuration and vice versa. The planet wheel 27 can be offset from the tilting support 19 on which it is mounted along the axis of rotation 28. A silicone washer (not shown), allowing the free rotation of the planet wheel relative to the tilting support 19 can be provided between the satellite wheel 27 and the tilting support 19.

By the preceding arrangements, the clutch 16 can vary between the first engaged configuration, the second engaged configuration and the disengaged configuration, by a simple angular tilting movement of the tilting support 19 around the tilting axis 20 with respect to the frame 11 .

In the disengaged configuration as seen in Figures 2, 5, 6, no satellite wheel 27 of the coupling device is engaged with the driven wheel 18.

In the first engaged configuration as visible in FIG. 7, resulting from a tilting movement of the tilting support 19 in the first direction S1 indicated in FIG. 7, a satellite wheel 27 of the coupling device is engaged with the wheel driven 18 in a first circumferential zone 181 of the driven wheel 18 so that the actuator 15 drives, via the clutch 16, the rotor of the rotary mechanism in the first direction of rotation P1, mentioned above.

Conversely, in the second engaged configuration illustrated in FIG. 8, which results from a tilting movement of the tilting support 19 in the second direction S2 opposite to the first direction S1, a satellite wheel 27 of the coupling device is engaged with the driven wheel 18 in a second circumferential zone 182 of the driven wheel 18 so that the actuator 15 drives, via the clutch 16, the rotor of the rotary mechanism in the second direction of rotation P2, mentioned above .

It is understood from the foregoing that the same planet wheel 27 may optionally, in a manner not shown, be used for each of the first and second clutched configurations. Alternatively, as shown and for the advantages already mentioned, two separate planet wheels 271, 272 can be provided, each being permanently engaged with the driving wheel 17 but only the planet wheel 271, mounted on the tilting support 19 by its axis of rotation 28, is engaged with the first circumferential zone 181 of the driven wheel 18 in the first clutched configuration and only the satellite wheel 272, mounted on the tilting support 19 by its axis of rotation 28, is engaged with the second circumferential zone 182 of the driven wheel 18 in the second engaged configuration. None of the planet wheels 271, 272 is engaged with the driven wheel 18 in the disengaged configuration (for example FIG. 2).

At least one magnetically active wheel chosen from the group consisting of the drive wheel 17 and said at least one satellite wheel 27 of the coupling device carries at least one permanent magnet 29 arranged in such a way that said at least one permanent magnet 29 is rotatable relative to the tilting support 19 together with the magnetically active wheel which carries said at least one permanent magnet 29.

A permanent magnet can typically be a neodymium magnet composed of an alloy of neodymium, iron and boron, or based on ferrite, or an alloy of iron with essentially aluminum, nickel and cobalt.

The fact of providing at least one permanent magnet 29 on said at least one magnetically active wheel as defined above, where each permanent magnet 29 can therefore cooperate magnetically with the tilting support 19 and/or with a magnetic member secured to the frame 11 as will be developed later, makes it possible to propose an electromechanical actuation device 10 which is reliable, which requires little maintenance, which is economical, and which avoids any risk of malfunction, in particular but not exclusively in the event of impact or of vibration.

The various wheels used for the operation of the clutch 16 are here toothed wheels adapted to come into engagement by intercalated mutual engagement of the teeth of two wheels cooperating with each other. But alternatively it could be wheels cooperating with each other only by friction, the adhesion depending on Coulomb's law.

Each permanent magnet 29 generates a generally oriented magnetic field, in the vicinity of at least one of the axial faces of the magnetically active wheel which carries it, substantially parallel to the axis of rotation 21, 28 of the magnetically active wheel which carries it. door.

According to one embodiment, the coupling device comprises the aforementioned first and second planet wheels 271, 272, which are mounted for rotation relative to the tilting support 19 around first and second axes of rotation 28 arranged, as can be seen on the figures, on either side of the driving wheel 17 and in engagement with the driving wheel 17.

According to another preferred embodiment, at least one magnetically active wheel chosen from among the first planet wheel 271 and the second planet wheel 272 carries at least one magnetic assembly including at least two permanent magnets 29 arranged at respective locations distributed angularly around the axis of rotation 28 of the magnetically active wheel which carries said magnetic assembly. The location of each of the permanent magnets 29 of said magnetic assembly is radially offset relative to the axis of rotation 28 of the magnetically active wheel which carries it so that the permanent magnet 29 is rotatable relative to the tilting support 19 together with the magnetically active wheel that carries it.

In the non-limiting example as illustrated, the first planet wheel 271 carries a magnetic assembly including four permanent magnets 29 arranged at respective locations distributed angularly with constant pitches around the axis of rotation 28 of the first planet wheel 271 which wear this magnetic set. The second planet wheel 272 also carries a magnetic assembly including four permanent magnets 29 arranged at respective locations angularly with constant pitch around the axis of rotation 28 of the second planet wheel 272 which carries this magnetic assembly.

The fact that the permanent magnets 29 are discrete and angularly distributed around the axis of rotation 28 of the first planet wheel 271, respectively around the axis of rotation 28 of the second planet wheel 272, makes it possible to ensure the presence of one of the permanent magnets in cooperation with the tilting support 19, whatever the angle of rotation of the planet wheel 271 or of the planet wheel 272 when the latter is stationary.

According to an alternative embodiment, the permanent magnet(s) 29 are mounted on the drive wheel 17, instead of the satellite wheels 271, 272.

Figure 3 provides details on the organization of the clutch 16, which includes a tilting support 19 comprising a first plate 191 and a second plate 192 arranged parallel at a distance from each other. Two cylindrical shafts 193 project from the first plate 191 towards the second plate 192. They are each secured at their remote end to the second plate 192, creating a one-piece assembly. Each of the cylindrical axles 193 acts as the aforementioned axis of rotation 28 for the two planet gears 271, 272, which are mounted axially on a respective cylindrical axle 193 in an axial position placed between the two plates 191, 192. The first plate comprises an opening 194, which allows the component part of the driving wheel drive shaft 17 to pass on either side of the first plate 191, so that the driving wheel 17 is also positioned between the two plates 191, 192.

According to an advantageous embodiment, the tilting support 19 comprises an element sensitive to a magnetic field, called magnetic element, capable of cooperating magnetically with each permanent magnet 29 carried by each magnetically active wheel, when the magnetic element is located in the magnetic field. magnetic generated by the corresponding permanent magnet 29, in a way creating a magnetic force of interaction between the magnetic element and the permanent magnet 29 considered. This makes it possible to create inexpensively, in a low and mechanically frictionless manner, magnetic forces which can be used for magnetic clutch purposes, as explained below. This interaction force can in particular have the same effects as the mechanical friction applied to the silicone washers by means of the spring washers described in document WO2017/114534A1.

The clutch 16 can thus comprise a magnetic clutch device associated with each magnetically active wheel where each magnetic clutch device is constituted by the magnetic element and the at least one permanent magnet 29 carried by the associated magnetically active wheel. The magnetic clutch device results in fact from the magnetic force of interaction between each permanent magnet 29 carried by the associated magnetically active wheel (the driving wheel 17 and/or at least one of the planet wheels 271, 272) and the magnetic element. Each magnetic clutch device applies a magnetic return torque, around the axis of rotation 21, 28 of the magnetically active wheel associated with this magnetic clutch device, between the tilting support 19 and the magnetically active wheel associated with said device magnetic clutch, the magnetic return torque having a predetermined nominal value depending on the magnetic force of interaction between each permanent magnet 29 carried by the associated magnetically active wheel and the magnetic element.

Thus, each magnetic clutch device ensures that the tilting support 19 and the magnetically active wheel associated with this magnetic clutch device are coupled in rotation when the mechanical torque applied to the associated magnetically active wheel is lower than the nominal value, and that the tilting support 19 and the associated magnetically active wheel are decoupled in rotation when the mechanical torque applied to the associated magnetically active wheel is greater than or equal to the nominal value.

Such magnetic forces make it possible to convert a rotation of the drive wheel 17 into a movement of the tilting support 19 and of the planet wheels 271, 272 as long as one of the planet wheels 271, 272 is not in engagement with the driven wheel 18 , then to allow the tilting support 19 to stop its tilting while the drive wheel 17 continues to drive the satellite wheels 271, 272 in rotation with respect to the rocker 19, and the driven wheel 18 with respect to the frame 11, overriding the nominal magnetic torque values mentioned above.

According to one embodiment, for each magnetically active wheel, at least two permanent magnets 29 are located, whatever the angular position of the magnetically active wheel considered with respect to the tilting support 19, plumb with the magnetic element with interposition of a predetermined air gap counted parallel to the axis of rotation 21, 28 of said magnetically active wheel 17, 271, 272 and comprised between 0.6 and 1 mm, and more preferably substantially equal to 0.8 mm.

For simplicity, good efficiency and reduced cost, the magnetic element of the tilting support 19 consists of a plate comprising a ferromagnetic material arranged plumb with at least one of the axial faces of each magnetically active wheel 17 , 271, 272 with interposition of a predetermined interval between 0.2 and 0.6 mm, and more preferably substantially equal to 0.4 mm. Such a ferromagnetic material is for example cobalt or iron. The ferromagnetic material plate can in particular be constituted by the first plate 191 and/or by the second plate 192. The material is typically a steel of the DX51D type.

According to a non-limiting embodiment, the frame 11 comprises at least one static magnetic member 30 capable of being positioned, when the clutch 16 occupies its disengaged configuration, in the magnetic field generated by at least one permanent magnet 29 of the at least one magnetically active wheel, creating a magnetic restoring force between the static magnetic member 30 and this permanent magnet 29.

This makes it possible to create at a lower cost, in a low manner and without mechanical friction, magnetic forces which can be used for the purpose of magnetic balancing of the tilting support 19 in a position corresponding to the disengaged configuration, as explained below. After.

Thus, a magnetic return device consists of said at least one static magnetic member 30 and the at least one permanent magnet 29 cooperating magnetically with the at least one static magnetic member 30. The magnetic return device results from all the forces magnetic reminders thus present by this phenomenon. The magnetic return device applies a magnetic return torque, around the tilting axis 20, between the tilting support 19 and the frame 11, this mechanical return torque having a predetermined threshold value depending on the magnetic return forces applied. Thus, the tilting support 19 is stabilized, in the frame 11, in an angular position corresponding to the disengaged configuration of the clutch 16, under the effect of the magnetic return torque.

When the actuator 15 is activated, the tilting support 19 tilts around the pivot axis 20 relative to the frame 11, depending on the direction of rotation of the electric motor, overcoming the predetermined threshold value of the mechanical torque of recall, until the adoption of one of the first engaged configuration and the second engaged configuration.

The fact that the at least at least one permanent magnet 29 is carried by one of the planet wheels 271, 272, rather than by the tilting support 19, ensures excellent stability, and this over an angular range of the tilting support 19 which is clearly greater . This enhances reliability or any risk of malfunction in the event of a large shock or strong vibration.

According to a non-limiting embodiment, and according to the arrangements illustrated, the frame 11 carries two separate static magnetic members 30 respectively associated with two magnetically active wheels constituted respectively by the first and second planet wheels 271, 272. This makes it possible to ensure the principle balancing at two different places, and moreover advantageously positioned on either side of the tilting axis 20 of the tilting support 19. The reliability and the guarantee of the maintenance conferred are reinforced.

In practice, it may be advantageous for each magnetically active wheel to have at least one of its permanent magnets 29 positioned opposite the associated static magnetic member 30, when the tilting support 19 occupies a position angular with respect to the frame 11 corresponding to the disengaged configuration of the clutch 16, with the interposition of a predetermined air gap counted parallel to the tilting axis 20 comprised between 0.6 and 1 mm, and more preferably substantially equal to 0, 8mm.

As illustrated in the figures, whatever the angular position of the tilting support 19 between its extreme positions corresponding to the first and second engaged configurations of the clutch 16, the at least one static magnetic member 30 is offset transversely by a distance 31 between 1 and 2 mm relative to the plumb of the magnetic element of the tilting support 19 considered parallel to the tilting axis 20, avoiding a magnetic interaction between the at least one static magnetic member 30 and the magnetic element .

According to a preferred embodiment, in each of the first and second engaged configurations of the clutch 16, the trajectory taken by each permanent magnet 29 carried by the at least one magnetically active wheel during the rotation of said magnetically active wheel relative to the tilting support 19 under the effect of the drive by the actuator 15 is transversely offset by a minimum distance 32 of between 3 and 5 mm relative to the plumb of at least one static magnetic member 30 considered parallel to the axis of rotation 21, 28 of said magnetically active wheel.

Preferably, the at least one static magnetic member 30 comprises at least one permanent magnet whose magnetic pole is opposite the magnetic pole of the at least one permanent magnet 29 carried by the at least one magnetically active wheel. Thus, the static magnetic member 30 and the permanent magnet 29 attract each other.

The embodiments presented above can be advantageously combined. In this case, the same permanent magnet 29 provides a dual function:

• by cooperating with the magnetic element of the tilting support 19, it provides the friction torque necessary to move the tilting support 19 towards one or the other of the engaged or disengaged configurations;
• by cooperation with the static magnetic member, it ensures the static maintenance of the tilting support 19 in the disengaged configuration.

Claims (14)

Electromechanical actuation device (10) for a leaf (200) of the door or window type, the electromechanical actuation device (10) being intended to drive in rotation a rotor of a rotary mechanism of the leaf such as a cylinder of a lock mechanism, the electromechanical actuation device (10) comprising:
- a frame (11) intended to be fixed on one face (201) of the opening (200),
- a drive member (14), rotatable relative to the frame (11), and adapted to be coupled in rotation with the rotor of the rotary mechanism when the frame (11) is fixed on the face (201) of the opening (200),
- an actuator (15) comprising an electric motor and making it possible to electrically drive the drive member (14) in rotation selectively in a first direction of rotation (P1) and in a second direction of rotation (P2),
- a clutch (16) linking the electric motor to the drive member (14),
wherein the clutch (16) comprises:
- a drive wheel (17) rotatable relative to the frame (11) and driven in rotation by the actuator (15),
- a driven wheel (18) connected in rotation with the drive member (14),
- a tilting support (19) capable of tilting bidirectionally relative to the frame (11) around a tilting axis (20),
- a coupling device comprising at least one satellite wheel (27) engaged with the drive wheel (17) and rotatable relative to the tilting support (19) along an axis of rotation (28) eccentric relative to the tilting axis (20), the axis of rotation (28) of said at least one satellite wheel (27) moving around the tilting axis (20) together with the tilting support (19),
wherein the clutch (16) varies, by tilting the tilting support (19), between:
- a first engaged configuration in which a satellite wheel (27) of the coupling device is in engagement with the driven wheel (18) in a first circumferential zone (181) of the driven wheel (18) so that the actuator ( 15) drives, via the clutch (16), the rotor of the rotary mechanism in the first direction of rotation (P1),
- a second engaged configuration in which a satellite wheel (27) of the coupling device is in mesh with the driven wheel (18) in a second circumferential zone (182) of the driven wheel (18) so that the actuator ( 15) drives, via the clutch (16), the rotor of the rotary mechanism in the second direction of rotation (P2),
- a disengaged configuration in which no satellite wheel (27) of the coupling device is engaged with the driven wheel (18),
wherein at least one magnetically active wheel selected from the group consisting of the drive wheel (17) and said at least one satellite wheel (27) of the coupling device carries at least one permanent magnet (29) arranged in a manner such that said at least one permanent magnet (29) is rotatable relative to the tilting support (19) together with the magnetically active wheel which carries said at least one permanent magnet (29). Electromechanical actuating device (10) according to Claim 1, in which the tilting axis (20) around which the tilting support (19) tilts with respect to the frame (11) coincides with the axis (21) of the drive wheel (17). Electromechanical actuation device (10) according to one of Claims 1 or 2, in which the said at least one permanent magnet (29) generates a generally oriented magnetic field, in the vicinity of at least one of the axial faces of the magnetically active wheel which carries it, substantially parallel to the axis of rotation (21, 28) of the magnetically active wheel which carries said at least one permanent magnet (29). Electromechanical actuating device (10) according to one of Claims 1 to 3, in which the coupling device comprises first and second separate satellite wheels (271, 272), mounted for rotation relative to the tilting support (19) around first and second axes of rotation (28) arranged on either side of the driving wheel (17) and in mesh with the driving wheel (17), the first satellite wheel (271) being in mesh with the driven wheel (18) in its first circumferential zone (181) in the first engaged configuration, the second planet wheel (272) being in mesh with the driven wheel (18) in its second circumferential zone (182) in the second engaged configuration, none of the first and second planet wheels (271, 272) not meshing with the driven wheel (18) in the disengaged configuration, and wherein at least one magnetically active wheel selected from the first planet wheel (271) and the second planet wheel (272) door per m anointing a magnetic assembly including at least two permanent magnets (29) arranged at respective locations distributed angularly around the axis of rotation (28) of the magnetically active wheel which carries said magnetic assembly, the location of each of the permanent magnets ( 29) of said magnetic assembly being radially offset with respect to the axis of rotation (28) of the magnetically active wheel which carries it so that the permanent magnet (29) is rotatable with respect to the tilting support (19) together with the magnetically active wheel that carries it. Electromechanical actuation device (10) according to claim 4, in which each of the first and second planet wheels (271, 272) comprises such a magnetic assembly, which comprises a plurality of permanent magnets (29) angularly distributed around the axis of rotation (28) of the corresponding magnetically active wheel. Electromechanical actuation device (10) according to one of Claims 4 or 5, in which each magnetic assembly comprises at least four separate permanent magnets (29) distributed angularly at constant pitch around the axis of rotation (20) of the magnetically active wheel which carries said magnetic assembly. Electromechanical actuation device (10) according to one of Claims 1 to 6, in which:
- the tilting support (19) comprises a magnetic element capable of cooperating magnetically with each permanent magnet (29) carried by each magnetically active wheel, when the magnetic element is located in the magnetic field generated by the corresponding permanent magnet (29) , in a way creating a magnetic force of interaction between the magnetic element and the permanent magnet (29) considered,
- the clutch (16) comprises a magnetic clutch device associated with each magnetically active wheel,
- each magnetic clutch device consists of the magnetic element and the at least one permanent magnet (29) carried by the associated magnetically active wheel,
- the magnetic clutch device resulting from the magnetic force of interaction between each permanent magnet (29) carried by the associated magnetically active wheel and the magnetic element,
- each magnetic clutch device applies a magnetic return torque, around the axis of rotation (21) of the magnetically active wheel associated with said magnetic clutch device, between the tilting support (19) and the associated magnetically active wheel to said magnetic clutch device, the magnetic return torque having a predetermined nominal value depending on the magnetic force of interaction between each permanent magnet (29) carried by the associated magnetically active wheel and the magnetic element,

• each magnetic clutch device ensures that the tilting support (19) and the magnetically active wheel associated with said magnetic clutch device are coupled in rotation when the mechanical torque applied to said associated magnetically active wheel is less than the nominal value, and that the tilting support (19) and said associated magnetically active wheel are decoupled in rotation when the mechanical torque applied to said associated magnetically active wheel is greater than or equal to the nominal value.

Electromechanical actuating device (10) according to claim 7, in which for each magnetically active wheel, at least two permanent magnets (29) are located, whatever the angular position of the magnetically active wheel considered with respect to the tilting support (19 ), plumb with the magnetic element with the interposition of a predetermined air gap counted parallel to the axis of rotation (28) of said magnetically active wheel and comprised between 0.6 and 1 mm, and more preferably substantially equal to 0.8mm. Electromechanical actuating device according to one of Claims 7 or 8, in which the magnetic element of the tilting support (19) consists of a plate (191, 192) comprising a ferromagnetic material arranged plumb with at least one of the axial faces of each magnetically active wheel with the interposition of a predetermined interval comprised between 0.2 and 0.6 mm, and more preferably substantially equal to 0.4 mm. Electromechanical actuation device (10) according to any one of claims 1 to 9, in which:
- the frame (11) comprises at least one static magnetic member (30) capable of being positioned, when the clutch (16) occupies its disengaged configuration, in the magnetic field generated by at least one permanent magnet (29) of the at least one magnetically active wheel, creating a magnetic restoring force between the static magnetic member (30) and this permanent magnet (29),
- a magnetic return device consists of said at least one static magnetic member (30) and the at least one permanent magnet (29) cooperating magnetically with said at least one static magnetic member (30), the magnetic return device resulting from all the magnetic restoring forces present,
- the magnetic return device applies a magnetic return torque, around the tilting axis (20), between the tilting support (19) and the frame (11), this mechanical return torque having a predetermined threshold value depending on the magnetic restoring forces applied,
- the tilting support (19) is stabilized, in the frame (11), in an angular position corresponding to the disengaged configuration of the clutch (16), under the effect of the magnetic return torque,
- when the actuator (15) is activated, the tilting support (19) tilts around the tilting axis (20) relative to the frame (11), depending on the direction of rotation of the electric motor, in overcoming the predetermined threshold value of the mechanical return torque, until adopting one of the first engaged configuration and the second engaged configuration. Electromechanical actuating device (10) according to one of Claims 4 to 6 and Claim 10, in which the frame (11) carries two distinct static magnetic members (30) respectively associated with two magnetically active wheels constituted respectively by the first and second planet wheels (271, 272), and in which for each magnetically active wheel, at least one of its permanent magnets (29) is positioned opposite the associated static magnetic member (30) , when the tilting support (19) occupies an angular position relative to the frame (11) corresponding to the disengaged configuration of the clutch (16), with the interposition of a predetermined air gap counted parallel to the tilting axis (20) between 0.6 and 1 mm, and more preferably substantially equal to 0.8 mm. Electromechanical actuating device (10) according to one of Claims 7 to 9 and according to one of Claims 10 or 11, in which, whatever the angular position of the tilting support (19) between its extreme positions corresponding to the first and second engaged configurations of the clutch (16), the at least one static magnetic member (30) is offset transversely by a distance (31) of between 1 and 2 mm relative to the plumb of the magnetic element of the support tilting (19) considered parallel to the tilting axis (20), avoiding a magnetic interaction between the at least one static magnetic member (30) and the magnetic element. Electromechanical actuation device (10) according to one of Claims 1 to 12, in which in each of the first and second engaged configurations of the clutch (16), the path taken by each permanent magnet (29) carried by the at least one magnetically active wheel during the rotation of said magnetically active wheel relative to the tilting support (19) under the effect of the drive by the actuator (15) is transversely offset by a minimum distance (32) between 3 and 5 mm relative to the plumb of at least one static magnetic member (30) considered parallel to the axis of rotation (21, 28) of said magnetically active wheel. Electromechanical actuation device (10) according to one of Claims 10 to 13, in which the at least one static magnetic member (30) comprises at least one permanent magnet, the magnetic pole of which is opposite the magnetic pole of the other. least one permanent magnet (29) carried by the at least one magnetically active wheel.