EP3690170B1 - Electromechanical lock operation device with vibratory decoupling - Google Patents

Description

Technical field of the invention

• un boitier externe destiné à être fixé sur la face de l'ouvrant,
• un mécanisme d'accouplement disposé dans un volume intérieur délimité par le boitier externe, mobile en rotation par rapport au boitier externe et susceptible d'être solidaire en rotation avec un rotor d'un cylindre de serrure de la serrure,
• un actionneur comprenant un moteur électrique et un réducteur de vitesse, et permettant d'entraîner en rotation électriquement le mécanisme d'accouplement.

The present invention relates to an electromechanical lock actuation device intended to be mounted on one face of an opening equipped with a lock, the electromechanical lock actuation device comprising:

• an external box intended to be fixed on the face of the opening,
• a coupling mechanism arranged in an interior volume delimited by the external housing, movable in rotation relative to the external housing and capable of being integral in rotation with a rotor of a lock cylinder of the lock,
• an actuator comprising an electric motor and a speed reducer, and making it possible to electrically rotate the coupling mechanism.

The invention applies in particular to the fields of locks which comprise a lock cylinder with, on the exterior side, an exterior lock entry allowing the introduction of a key and, on the interior side, either an interior lock entry allowing the the introduction of a key, i.e. a rotor coupling member allowing the installation of a manual button. Such a key or the manual button makes it possible to rotate the rotor of the lock cylinder in order to control the movement of a spring bolt and/or a deadbolt in order to open or close the opening and/or to lock or unlock the lock.

State of the art

Conventionally, a lock comprises a lock cylinder having a stator fixedly mounted on the opening so as to pass through its thickness and a rotor rotatably mounted in the stator. The rotational actuation of the rotor of the lock cylinder actuates in translation a deadbolt, the latter being capable of locking the lock by insertion into a striker secured to a fixed frame, or jamb, on which the opening is mounted. The lock may also include a handle pivotally mounted on the sash to operate at least one spring-loaded bolt. Rotating the lock cylinder rotor can also actuate the spring-loaded bolt.

A lock cylinder comprises, on the exterior side, an exterior lock entry allowing the insertion of a key and, on the interior side, either an entry interior of the lock allowing the introduction of a key, or a rotor coupling member allowing the installation of a manual button. Such a key or the manual button makes it possible to rotate the rotor of the lock cylinder in order to control the movement of the spring bolt and/or the deadbolt in order to open or close the opening and/or to lock or unlock the lock.

There are electromechanical devices intended to operate such locks in a motorized manner, for example like the solution described in the documents EP2762661A1 And EP3000953A1 .

These electromechanical lock actuation devices are intended to be fixed on the interior side of the opening in a manner cooperating with the motorized lock for its locking and unlocking.

Electromechanical lock actuation devices generally comprise a source of electrical energy to power, on the one hand, an actuator comprising an electric motor and a speed reducer, and on the other hand an electronic control unit capable of communicating with the externally, in particular with a view to receiving external instructions and transmitting outgoing information. The control unit ensures control of the actuator based on these instructions and this information and as a function of any sensors integrated into the electromechanical lock actuation device, for example force, position, speed sensors. or presence.

They also generally contain a coupling mechanism intended to be driven in rotation by the electric motor and to be made integral in rotation with the rotor of the lock cylinder of the lock to be motorized.

Cooperation between the rotor of the lock cylinder and the internal coupling mechanism of the electromechanical lock actuation device can be achieved by placing one of the keys admitted by the lock cylinder at the level of the interior entry of the lock, this key then being engaged with the coupling mechanism to be integral in rotation with one and the other. Alternatively, the cooperation between the rotor of the lock cylinder and the internal coupling mechanism of the electromechanical lock actuation device can be done via the coupling member, also called "tail", which is integral with the rotor of the lock cylinder and initially intended for the installation of the aforementioned manual button. Once the manual button has been removed, the coupling member can be engaged with the internal coupling mechanism of the electromechanical actuating device so that these two elements are integral in rotation with each other.

The electromechanical lock actuation devices also include an operating button adapted for manual entry in order to be able to manually rotate the rotor of the lock cylinder. They also include a disengageable clutch mechanism interposed between the coupling mechanism and the actuator, this mechanism varying between a disengaged configuration and at least one engaged configuration. The disengaged configuration is adopted automatically or by suitable control when the possibility of manual actuation of the operating button must be offered, as well as the possibility of actuation of the lock by a key on the exterior side. On the other hand, the engaged configuration is adopted when driving the rotor of the lock cylinder of the lock by the actuator is desired and authorized.

All the mechanical components mentioned above, i.e. the coupling mechanism, the actuator, the operating button and its possible transmission as well as the clutch mechanism, by their functional and structural nature, are likely to transmit vibrations to the opening, whether it is a door or a window. Given that many openings have an at least partially hollow construction, they have a natural tendency to amplify the sound induced by these vibrations, under the effect of a resonance box. Since known electromechanical lock actuation devices generally have a hollow-shaped housing, the vibrations of the various mechanical components can also induce noise generated by the housing itself under a resonance box effect. However, such noise pollution induced on the opening by the operation of the electromechanical lock actuation device mounted on this opening, or generated by the housing itself of the lock actuation devices, is likely to create a real nuisance for users or more generally all people located near the opening.

Furthermore, the fixing of an electromechanical lock actuation device on a non-flat face of the opening is likely to cause deformation of all or part of the electromechanical lock actuation device. This deformation can cause a change in the distance separating the axes of the internal gear trains, which results in an irregular and unpleasant sound.

Object of the invention

The present invention aims to propose an electromechanical lock actuation device which responds to the problems raised by the state of the art presented above, in particular which avoids as much as possible the noise pollution and noise likely to be generated at the level of the opening and at the level of the electromechanical lock actuation device, which avoids as much as possible the transmission of vibrations to the opening and which makes it possible to limit the risks of deformation of the electromechanical lock actuation device in the event of attachment to a non-flat face of an opening.

• un boitier externe destiné à être fixé sur la face de l'ouvrant,
• un mécanisme d'accouplement disposé dans un volume intérieur délimité par le boitier externe, mobile en rotation par rapport au boitier externe et susceptible d'être solidaire en rotation avec un rotor d'un cylindre de serrure de la serrure,
• un actionneur comprenant un moteur électrique et un réducteur de vitesse, et permettant d'entrainer en rotation électriquement le mécanisme d'accouplement,
• un support disposé dans le volume intérieur délimité par le boitier externe et sur lequel l'actionneur est fixé selon une liaison encastrement rigide,
• des éléments amortisseurs en matériau élastiquement déformable assurant une liaison mécanique amortie du support au boitier externe conférant un découplage vibratoire entre le support et le boitier externe.

This goal can be achieved by providing an electromechanical lock actuation device intended to be mounted on one face of an opening equipped with a lock, the electromechanical lock actuation device comprising:

• an external box intended to be fixed on the face of the opening,
• a coupling mechanism arranged in an interior volume delimited by the external housing, movable in rotation relative to the external housing and capable of being integral in rotation with a rotor of a lock cylinder of the lock,
• an actuator comprising an electric motor and a speed reducer, and making it possible to electrically rotate the coupling mechanism,
• a support arranged in the interior volume delimited by the external housing and on which the actuator is fixed according to a rigid embedding connection,
• damping elements made of elastically deformable material ensuring a damped mechanical connection of the support to the external housing providing vibrational decoupling between the support and the external housing.

Some preferred but non-limiting aspects are as follows.

The electromechanical lock actuation device comprises a clutch mechanism interposed between the coupling mechanism and the actuator so as to be able to vary between a disengaged configuration and at least one engaged configuration, the clutch mechanism being arranged in the interior volume delimited by the external casing and being fixed to the support by a rigid embedding connection.

The clutch mechanism comprises a driving wheel linked in rotation to an output axis of the actuator, a driven wheel linked in rotation to the coupling mechanism, at least one satellite wheel mounted on a movable support by articulation around the axis of the driving wheel allowing the satellite wheel to be positioned in different positions around the axis of the driving wheel.

The coupling mechanism is rotatably attached to the support.

The support comprises an upper plate and a lower plate linked together by delimiting a space in which the components fixed to the support are at less partially housed, the damping elements which ensure the damped mechanical connection of the support to the external housing comprising damping blocks formed in an elastically deformable material interposed between the lower plate and the external housing.

The external box comprises a mounting plate comprising fixing elements to allow the fixing of the mounting plate on the face of the opening and in which the damping elements which ensure the damped mechanical connection of the support to the external box are interposed between the support and the mounting plate so that said vibration decoupling is ensured between the mounting plate and the support.

The external housing comprises a damping plate formed from an elastically deformable material, fixed on an external face of the mounting plate and intended to be interposed between the mounting plate and the face of the opening when the external housing is fixed on the opening, so as to provide vibrational decoupling between the mounting plate and the opening.

The coupling mechanism comprises a rotational drive part delimiting first rotational coupling elements capable of cooperating with a key inserted into the rotor of the lock cylinder in a manner making the key and the locking part integral in rotation. rotational drive around the axis of rotation of the rotational drive part, the first rotational coupling elements delimited by the rotational drive part comprising elastically deformable damping elements intended to be interposed between the rotational drive part rotation drive and the key when the key cooperates with the first rotation coupling elements so as to provide vibrational decoupling between the rotation drive part and the key.

The coupling mechanism comprises a connecting part independent of the rotational drive part and comprising second rotational coupling elements capable of cooperating with the first rotational coupling elements to make the connecting part and the rotationally integral. rotational drive part around the axis of rotation of the rotational drive part, the connecting part being able to cooperate with a coupling member projecting from the rotor of the lock cylinder in a manner making it integral in rotation the coupling member and the connecting part around the axis of rotation of the rotating drive part, the damping elements being interposed between the rotating driving part and the connecting part when the second coupling elements in rotation cooperate with the first coupling elements in rotation in a manner conferring vibrational decoupling between the connecting part and the rotating drive part.

The electromechanical lock actuation device comprises fixing elements for fixing the support to the external housing by providing at least one possibility of movement in a transverse plane to the axis of rotation of the coupling mechanism relative to the external housing and in which the damping elements which ensure the damped mechanical connection of the support to the external housing have an ability to absorb the relative movements of the support relative to the external housing at least in the direction of movement of the support provided by said fixing elements.

Summary description of the drawings

• [Fig. 1] est une vue en perspective d'un exemple de serrure montée sur un ouvrant de porte.
• [Fig. 2] est une vue identique à la figure 1, la pièce de liaison étant montée sur l'organe de couplage du rotor du cylindre de serrure.
• [Fig. 3] est une vue éclatée en perspective d'un exemple de dispositif électromécanique d'actionnement de serrure selon l'invention.
• [Fig. 4] est une vue en perspective avant de la plaque de montage du boitier externe.
• [Fig. 5] est une vue en perspective arrière de la plaque de montage du boitier externe.
• [Fig. 6] est une vue en perspective partielle du dispositif électromécanique d'actionnement de serrure avant de coopérer avec une clé destinée à être insérée dans le rotor du cylindre de serrure, la pièce de liaison étant absente.
• [Fig. 7] est une vue en perspective partielle du dispositif électromécanique d'actionnement de serrure avant de coopérer avec la pièce de liaison destinée à coopérer avec un organe de couplage du rotor du cylindre de serrure.
• [Fig. 8] est une vue en perspective de l'actionneur et du mécanisme d'embrayage.

Other aspects, aims, 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 :

• [ Fig. 1 ] is a perspective view of an example of a lock mounted on a door opening.
• [ Fig. 2 ] is a view identical to the figure 1 , the connecting part being mounted on the coupling member of the rotor of the lock cylinder.
• [ Fig. 3 ] is an exploded perspective view of an example of an electromechanical lock actuation device according to the invention.
• [ Fig. 4 ] is a front perspective view of the outer case mounting plate.
• [ Fig. 5 ] is a rear perspective view of the outer case mounting plate.
• [ Fig. 6 ] is a partial perspective view of the electromechanical lock actuation device before cooperating with a key intended to be inserted into the rotor of the lock cylinder, the connecting part being absent.
• [ Fig. 7 ] is a partial perspective view of the electromechanical lock actuation device before cooperating with the connecting part intended to cooperate with a coupling member of the rotor of the lock cylinder.
• [ Fig. 8 ] is a perspective view of the actuator and clutch mechanism.

detailed description

On the figures 1 to 8 and in the remainder of the description, the same references represent identical or similar elements. Furthermore, the different embodiments and variants described are not exclusive of each other and can be combined with each other, as indicated in the appended claims.

The electromechanical lock actuation device 10 which is shown is intended to be mounted on a face 201 of an opening 200 equipped with a lock 100, for example for a door pivotally mounted on a frame. For example, the face 201 corresponds to a face of the opening 200 intended to be positioned on the interior side of the room closed by the opening 200.

The lock 100 comprises, in a known manner, for example as described in the document FR3028282A1 , a lock cylinder 101 having a stator mounted on the opening 200 so as to pass through its thickness and a rotor mounted to rotate in the stator. The rotational actuation of the rotor of the lock cylinder 101 actuates in translation a bit or a deadbolt 103, as well as possibly a closing bolt 104, also called a limit bolt or spring bolt, capable of being inserted retractably in a striker secured to the frame on which the opening 200 is mounted in order to lock or unlock the lock 100 and/or to open or close the opening 200. 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. The lock cylinder 101 can be single clutch or double clutch.

The lock cylinder 101 comprises, on the exterior side, an exterior lock entry allowing the insertion of a key 106. As will be explained later, the electromechanical lock actuation device 10 according to the invention can either cooperate , with a view to its motorized drive, with a lock cylinder 101 comprising on the interior side an interior lock entry allowing the introduction of a key 106 or with a lock cylinder 101 comprising on the interior side a coupling member 102 intended for coupling with a manual button (not shown). Rotational actuation of the rotor of the lock cylinder 101 in a motorized manner, whether by means of a key 106 or by means of the coupling member 102, makes it possible to control the movement of the closing bolt 104 and/or the deadbolt 103 in order to open or close the opening 200 and/or to lock or unlock the lock 100.

The electromechanical lock actuation device 10 comprises an external housing 18 intended to be fixed on the face 201 of the opening 200 and a coupling mechanism 11 disposed in an interior volume delimited by the external housing 18. The coupling mechanism 11 is movable in rotation relative to the external housing 18 and capable of being integral in rotation with the rotor of the lock cylinder 101 of the lock 100 so as to cause it to rotate electrically in order to motorize the lock 100.

The lock 100 comprises two opposite maximum angular stops, the nature of which is not important here, to limit the movement of the rotor of the lock cylinder 101 or of the coupling mechanism 11 of the electromechanical lock actuation device 10 to the within a predetermined angular stroke. The assembly can either be configured for an angular stroke limited to approximately a quarter of a turn of the rotor, as is the case for example on the North American market, or for an angular stroke of several revolutions of the rotor, as is the case. is the case for example on the European market.

The electromechanical lock actuation device 10 comprises an actuator 13 comprising an electric motor and a speed reducer, adapted to drive the actuation mechanism 11 in rotation electrically, so as to electrically drive the rotor of the lock cylinder 101 in rotation when this rotor is coupled in rotation to the coupling mechanism 11.

The electromechanical lock actuation device 10 also comprises a rotary operating button 15 adapted for manual gripping and for manually driving the actuation mechanism 11, ultimately making it possible to manually rotate the rotor of the lock cylinder 101 when this rotor is coupled in rotation to the coupling mechanism 11.

In order to be able to manually rotate the rotor of the lock cylinder 101 via a key 106 inserted at the external lock entrance and/or via the operating button 15 of the electromechanical locking device. lock actuation 10, it is necessary to uncouple the rotor of the lock cylinder 101 relative to the actuator 13. The electromechanical lock actuation device 10 comprises for this purpose a clutch mechanism 14 interposed between the lock mechanism coupling 11 and the actuator 13 and varying between a disengaged configuration in which the actuator 13 is not coupled to the coupling mechanism 11 and at least one engaged configuration in which the actuator 13 is coupled to the coupling mechanism 11 for its rotational training. The clutch mechanism 14 can be designed so as to be able to adopt a first engaged configuration in which the actuator 13 is capable of rotating the coupling mechanism 11 in a first direction of rotation and a second engaged configuration in which the actuator 13 is capable of rotating the coupling mechanism 11 in a second direction of rotation opposite to the first direction of rotation.

The clutch mechanism 14 can operate according to friction principles, for example by taking up the teachings of the document FR3028282A1 . Alternatively, the clutch mechanism 14 can be based on the known principle of a tilting yoke. For example, as shown in the figures 3 And 8 , the clutch mechanism 14 may comprise a driving wheel 141 linked in rotation to an output axis of the actuator 13, a driven wheel 142 linked in rotation to the coupling mechanism 11, at least one satellite wheel 144 mounted so satellite to the driving wheel 141 and a movement system making it possible to position the satellite wheel 144 in different positions around the axis of the driving wheel 141, the driven wheel 142 intercepting or not the trajectory of the satellite wheel 144.

According to one embodiment, the satellite wheel 144 is mounted on a mobile support 143 by articulation around the axis of the driving wheel 141. The movement system can include a shaft integral with the driving wheel 141 and cooperating with the mobile support 143 to create a friction torque: this friction torque allows the shaft to drive the mobile support 143 in rotation from a position corresponding to the first engaged configuration to the second engaged configuration and vice versa. Then, once one of the engaged configurations has been adopted, the mobile support 143 becomes mobile in rotation relative to the shaft which rotates the driving wheel 141, which rotates the satellite wheel 144 which is itself in engagement with the driven wheel 142.

In particular, the different wheels used for the clutch mechanism 14 are toothed wheels.

When the actuator 13 is powered so that it rotates in a first direction of rotation in order to act on the rotor of the lock cylinder 101, the shaft secured to the driving wheel 141, and therefore the driving wheel 141 , are rotated in the first direction. The driving wheel 141 meshing with the satellite wheels 144 creates a torque on the mobile support 143 tending to cause it to rotate for its movement until one of the satellite wheels 144 comes into contact and meshes with the driven wheel 142. In this configuration, the driven wheel 142 itself secured in rotation to the coupling mechanism 11 is rotated in a first direction of rotation via the driving wheel 141 and the first satellite wheel 144 then engaged.

When the actuator 13 is powered so that it rotates in a second direction of rotation in order to act on the rotor of the lock cylinder 101, the shaft secured to the driving wheel 141, and therefore the driving wheel 141 , are rotated in the second direction. The driving wheel 141 meshing with the satellite wheels 144 creates a torque on the mobile support 143 tending to cause it to rotate for its movement until the other of the satellite wheels 144 comes into contact and meshes with the driven wheel 142. In this configuration, the driven wheel 142 itself secured in rotation to the coupling mechanism 11 is rotated in a second direction of rotation via the driving wheel 141 and the second satellite wheel 144 then engaged.

It is possible for the clutch mechanism 14 to comprise a single satellite wheel 144 serving in the first engaged configuration and in the second engaged configuration. Alternatively, as shown on the figure 8 , the clutch mechanism 14 may comprise two separate satellite wheels 144 serving respectively in the first engaged configuration and the second engaged configuration, in other words a satellite wheel 144 corresponding to each direction of rotation.

The disengaged configuration corresponds to an intermediate position of the mobile support 143 in which none of the satellite wheels 144 is engaged with the driven wheel 142.

The electromechanical lock actuation device 10 comprises an electrical energy storage device (not shown), such as autonomous batteries, to power the actuator 13 or even a control unit capable of communicating with the outside via means of communication such as radio frequency, wifi, Bluetooth, or equivalent such as for example ZIGBEE, Zwave or proprietary protocols, in particular for the reception of external instructions intended for the control unit and the transmission of outgoing information coming from the control unit. The control unit ensures control of the actuator 13 based on these external instructions and this outgoing information and as a function of possible sensors integrated into the electromechanical lock actuation device 10, for example to determine mechanical rotational torques. of the rotor of the lock cylinder 101, the absolute angular position of the rotor of the lock cylinder 101, its rotation speed or to determine the presence of a key 106 or any other element necessary for the operation of the lock 100 or the electromechanical device lock actuation 10.

To respond to the problems raised in relation to the state of the art, the electromechanical lock actuation device 10 comprises a support 16 disposed in the interior volume delimited by the external housing 18 and on which the actuator 13 is fixed according to a rigid embedding connection and damping elements 24 in elastically deformable material ensuring a damped mechanical connection of the support 16 to the external housing 18 conferring vibrational decoupling between the support 16 and the external housing 18.

The presence of such damping elements 24 makes it possible to avoid as much as possible the transmission of vibrations generated by the operation of the actuator 13 to the external housing 18, consequently limiting the propagation of all or part of these vibrations up to the 'opening 200.

According to a particular non-limiting embodiment, the clutch mechanism 14 is arranged in the interior volume delimited by the external housing 18 and is fixed on the support 16 by a rigid embedding connection.

The presence of damping elements 24 makes it possible to avoid as much as possible the transmission of vibrations generated by the operation of the clutch mechanism 13 to the external housing 18, consequently limiting the propagation of all or part of these vibrations up to the 'opening 200.

Still with acoustic and vibration concerns, it is advantageous to provide that the coupling mechanism 11 can be fixed to rotate on the support 16. In this case, the presence of the damping elements 24 makes it possible to avoid as much as possible the transmission of vibrations generated by the operation of the coupling mechanism 11 to the external housing 18, consequently limiting the propagation of all or part of these vibrations up to the opening 200.

In a non-limiting embodiment, the coupling mechanism 11 is mounted to rotate on the support 16 around a first axis of rotation and the operating button 15 is mounted to rotate about a second axis of rotation in an arrangement general where the first axis of rotation and the second axis of rotation are distinct and not coincident with each other. The first axis of rotation and the second axis of rotation are oriented respectively in a first main direction D1 and in a second main direction D2 forming between them an angle of between 0° and 90°. There Figure 3 illustrates the particular non-limiting case where this angle is zero, that is to say equal to 0°, the first main direction D1 then being parallel to the second main direction D2. The first main direction D1 and the second main direction D2 are offset relative to each other, in a plane oriented transversely to the first and second main directions D1, D2, by interposition of a center distance 19. This center distance can take a value between 2 and 10 cm.

The electromechanical lock actuation device 10 comprises a transmission mechanism 17 interposed between the coupling mechanism 11 and the operating button 15 and fixed on the support 16. The transmission mechanism 17 transforming a rotational movement of the operating button 15 in a rotational movement of the coupling mechanism 11.

The transmission mechanism 17 may comprise a driving wheel 171 linked and rotated by the operating button 15 and a driven wheel 172 linked in rotation to the coupling mechanism 11. The driven wheel 172 can be in direct engagement with the driving wheel 171 or in indirect drive with the interposition of at least one intermediate wheel. In particular, the different wheels used for the transmission mechanism 17 are toothed wheels.

The transmission mechanism 17 could alternatively provide for the presence and use of a transmission belt, which would have the advantage of introducing a flexible element which itself absorbs vibrations.

In the variant illustrated, for reasons of simplification of the assembly, the driven wheel 172 of the transmission mechanism 17 and the driven wheel 142 of the clutch mechanism 14 are constituted in the same part whose height is adapted to be able to cooperate with the intermediate wheel and with the satellite wheel(s) 144 respectively of the transmission mechanism 17 and the clutch mechanism 14 which are generally superimposed on one another to optimize space requirements.

The external housing 18 comprises a mounting plate 181 comprising fixing elements to allow the fixing of the mounting plate 181 on the face 201 of the opening 200. The fixing elements are for example in the form of one or several through openings (visible on the Figure 4 ) provided through the mounting plate 181 and allowing the installation of screws intended to engage in the opening 200. The damping elements 24 which ensure the damped mechanical connection of the support 16 to the external housing 18 are interposed between the support 16 and the mounting plate 181 so that the vibration decoupling they provide is ensured between the mounting plate 181 and the support 16.

The external housing 18 also includes a front cover 182 removably fixed on the mounting plate 181. It is possible to provide the presence of damping members 184 interposed between the front cover 182 and the mounting plate 181 so as to provide a vibration decoupling between the mounting plate 181 and the front cover 182. This remains entirely optional due to the fact that the external housing 18 is only subject to very low vibrations, or even none, due to the presence of the damping elements 24.

The external housing 18 is configured to enclose, preferably in a sealed manner, at least the transmission mechanism 17, the coupling mechanism 11, the clutch mechanism 14 and the electrical energy storage device. The external housing 18 gives access to the operating button 15 from the outside of the external housing 18 so that the operating button 15 is placed, axially along the main axis X of the electromechanical lock actuation device 10, between the device electrical energy storage and the coupling mechanism 11. The operating button 15 can be arranged projecting relative to the front face of the front cover 182 of the external housing 18 as shown in the figures. This makes it possible to improve the ease of manual entry of the operating button 15 and gives good ergonomics to the electromechanical lock actuation device 10. However, it remains possible to consider an arrangement of the operating button 15 recessed in the housing external 18 so that the operating button 18 is then flush with or below the front face of the front cover 182 of the external housing 18.

The external housing 18 comprises a damping plate 183 formed in an elastically deformable material, fixed on an external face of the mounting plate 181 and intended to be interposed between the mounting plate 181 and the face 201 of the opening 200 when the external box 18 is fixed on the opening 200, so as to provide vibrational decoupling between the mounting plate 181 and the opening 200.

The damping plate 183 makes it possible to avoid as much as possible the propagation to the opening 200 of the vibrations possibly suffered by the mounting plate 181 despite the presence of the damping elements 24 under the effect of the vibrations of the support 16 induced by the operation of the actuator 13, the coupling mechanism 11, the clutch mechanism 14, the transmission mechanism 17, the operating button 15.

Thanks to the presence of the damping elements 24 arranged between the support 16 and the mounting plate 181 and/or the damping plate 183, the deformation possibly suffered by the mounting plate 181 in the event of fixation on a face 201 of the non-planar opening 200, only causes very little or no deformation of the components fixed on the support 16. This therefore results in an attenuated, stable and regular sound whatever the quality of the surface of the face 201 of the opening 200 or its protruding elements (cylinder, rosette, crutch plate, screws, etc.).

The design of the support 16 is not limiting in itself. By way of example giving satisfaction in practice, the support 16 comprises an upper plate 162 and a lower plate 161 linked together by delimiting a space in which the components (that is to say the actuator 13, the mechanism The coupling 11, the clutch mechanism 14, the transmission mechanism 17 and the operating button 15) fixed to the support 16 are at least partially housed. The damping elements 24 which ensure the damped mechanical connection of the support 16 to the external housing 18 comprise damping blocks formed in an elastically deformable material interposed between the lower plate 162 and the external housing 18, in particular between the lower plate 162 and the mounting plate 181.

The coupling mechanism 11 of the electromechanical lock actuation device 10 is capable of being coupled in rotation with the lock cylinder 101, with a view to its motorized drive via the actuator 13 or its manual drive via the release button. maneuver 15, either by means of a key 106 introduced into the rotor of the lock cylinder 101 at the level of the internal lock entry or by means of the coupling member 102 secured to the rotor of the lock cylinder 101, projecting from the interior side and intended initially (that is to say when the lock 100 is used without the electromechanical lock actuation device 10 being mounted on the opening 200) for the installation of the manual button.

Thus, the electromechanical lock actuation device 10 indifferently allows the double possibility that a key 106 introduced into the rotor of the lock cylinder 101 is engaged with the coupling mechanism 11 to be integral in rotation with one and the other. 'other or that the coupling member 102 permanently secured to the rotor of the lock cylinder 101 is engaged with the coupling mechanism 11 to be integral in rotation with one and the other.

To achieve this very advantageous result in terms of diversity of applications for users, the coupling mechanism 11 comprises on the one hand a rotational drive part 20 movable in rotation, the axis of rotation of the part d rotation drive 20 corresponding to the axis of rotation of the drive mechanism 11 which is oriented in the first direction D1 mentioned previously. The axis of the rotor of the lock cylinder 101 is aligned as closely as possible with the axis of rotation of the rotation drive part 20.

The rotation drive part 20 delimits first rotation coupling elements 21 capable of cooperating with a key 106 inserted in the rotor of the lock cylinder 101 in a manner making the key 106 and the key 106 integral in rotation. rotational drive part 20 around the axis of rotation of the rotational drive part 20.

The first rotational coupling elements 21 delimited by the rotational drive part 20 comprise elastically deformable damping elements 23 intended to be interposed between the rotational drive part 20 and the key 106 when the key 106 cooperates with the first rotational coupling elements 21 so as to provide vibrational decoupling between the rotational drive part 20 and the key 106,

The coupling mechanism 11 further comprises a connecting part 12 independent of the rotational drive part 20 and comprising second rotational coupling elements 22 capable of cooperating with the first rotational coupling elements 21 to make integral in rotation the connecting part 12 and the rotation drive part 20 around the axis of rotation of the rotation drive part 20.

The connecting part 12 is configured to be able to cooperate with the coupling member 102 projecting from the rotor of the lock cylinder 101 in a manner making the coupling member 102 and the connecting part 12 integral in rotation around the axis rotation of the rotation drive part 20.

The damping elements 23 are also intended to be interposed between the rotational drive part 20 and the connecting part 12 when the second rotational coupling elements 22 cooperate with the first rotational coupling elements 21 in a manner conferring a vibration decoupling between the connecting part 12 and the rotational drive part 20.

The damping elements 23 make it possible to avoid as much as possible the transmission of vibrations from the coupling mechanism 11 to the lock cylinder 101, whether these vibrations are generated by the coupling mechanism 11 or by the actuator 13, the mechanism d clutch 14, the transmission mechanism 17 or the operating button 15. The damping elements 23 reciprocally make it possible to avoid as much as possible the transmission of vibrations from the lock cylinder 101 to the coupling mechanism 11. The damping elements 23 provide also an elasticity between the axis of the lock cylinder 101 which is rigid, particularly in the case of cooperation with a key 106, and the coupling mechanism 11, which is linked to the support 16 and presents, as a result of the presence of the damping elements 24, a certain mobility perpendicular to the axis of the lock cylinder 101. This elasticity is necessary to compensate for axial divergences which could otherwise cause deformation of the elements rigid of the electromechanical lock actuation device 10 and generate unpleasant noises.

The rotational drive part 20 defines a receiving housing 26 adapted to receive the connecting part 12 by reversible insertion of the connecting part 12 into the receiving housing 26, which means that the connecting part 12 can be removed out of the receiving housing 26 as soon as the user wishes, typically when he wishes to use the connecting part 12 then mounted on the coupling member 102 without it being coupled to the electromechanical lock actuation device 10 or when he wishes to couple the rotational drive part 20 with the key 106. The first rotational coupling elements 21 comprise at least one coupling slot 261 delimited by the receiving housing 26 and oriented transversely to the axis of rotation of the rotation drive part 20. Typically, for good rotation drive, each coupling slot 261 is oriented perpendicular to the axis of rotation of the rotation drive part 20. The depth of each coupling slot 261 is counted, for its part, parallel to the axis of rotation of the rotation drive part 20. The coupling slots 261, forming the first rotation coupling elements 21, are intended to receive the flat-shaped head of the key 106.

The connecting part 12 comprises at least one coupling wing 251 intended to be inserted into the coupling slot 261 when the connecting part 12 is inserted into the receiving housing 26. The second rotating coupling elements 22 comprise said at least one coupling wing 251. Advantageously, this wing or these coupling wings 251 allow manual actuation of the lock cylinder 101 from the inside, for example to check the operation of the lock 100 before mounting the electromechanical device lock actuation 10 or in the event of dismantling thereof.

According to one embodiment allowing good transmission of movement and adaptation to a wide variety of height of key head 106, the receiving housing 26 delimits two distinct coupling slots 261 aligned with one another in a direction common passing through the axis of rotation of the rotation drive part 20. The connecting part 12 then advantageously comprises two coupling wings 251 extending radially from a central body 252 generally of cylindrical shape, so that the connecting piece 12 adopts a general butterfly shape, as can be seen on the figure 2 .

The receiving housing 26 and the connecting part 12 are configured so that the insertion of the connecting part 12 into the receiving housing 26 is carried out by a relative movement collinear with the axis of rotation of the driving part rotating 20.

The damping elements 23 are constituted by a damping layer arranged on the internal walls of the receiving housing 26, in particular at least at the level of each coupling slot 261. Alternatively, the rotation drive part 20 could itself be made in a damping material, or damping pads could be added between the rotational drive part 20 and the key 106 or the connecting part 12 in contact.

In a variant not shown, the electromechanical lock actuation device 10 comprises fixing elements ensuring fixing of the support 16 to the external housing 18 conferring at least one possibility of movement in a plane transverse to the axis of rotation of the mechanism coupling 11 relative to the external housing 18. For example, the fixing elements can be of the type known as an Oldham joint, giving a double possibility of sliding in two directions perpendicular to each other and both perpendicular to the axis of rotation of the coupling mechanism 11. In this variant, the damping elements 24 which ensure the damped mechanical connection of the support 16 to the external housing 18 have an ability to absorb the relative movements of the support 16 relative to the external housing 18 at least in the direction of movement of the support 16 imparted by said fixing elements.

Finally, it is possible that the electromechanical lock actuation device 10 also integrates damping elements between the different components of the described kinematic chain (electric motor, speed reducer, clutch mechanism 14, coupling mechanism 11, etc.). .).

The electromechanical lock actuation device 10 which has just been described avoids as much as possible the noise pollution and noise likely to be generated at the level of the opening 200 and at the level of the electromechanical lock actuation device 10, avoids as much as possible the transmission of vibrations to the opening 200 and makes it possible to limit the risks of deformation of the electromechanical lock actuation device 10 in the event of attachment to a non-flat face 201 of an opening 200.

Claims (10)

1. A latch actuation electromechanical device (10) intended to be mounted on a face (201) of a door leaf (200) equipped with a latch (100), the latch actuation electromechanical device (10) comprising:

   - an outer case (18) intended to be fastened on the face (201) of the door leaf (200),

   - a coupling mechanism (11) disposed within an internal volume delimited by the outer case (18), movable in rotation relative to the outer case (18) and prone to be rotatably secured with a rotor of a latch cylinder (101) of the latch (100),

   - an actuator (13) comprising an electric motor and a speed reducer, and allowing electrically driving in rotation the coupling mechanism (11),

   - a support (16) disposed within the internal volume delimited by the outer case (18) and on which the actuator (13) is fastened according to a rigid interlocking connection,

   - damper elements (24) made of an elastically-deformable material ensuring a dampened mechanical linkage of the support (16) to the outer case (18) conferring a vibration decoupling between the support (16) and the outer case (18).
2. The latch actuation electromechanical device (10) according to claim 1, wherein the latch actuation electromechanical device (10) comprises a clutch mechanism (14) interposed between the coupling mechanism (11) and the actuator (13) so as to be able to vary between a declutched configuration and at least one clutched configuration, the clutch mechanism (14) being disposed within the internal volume delimited by the outer case (18) and being fastened on the support (16) by a rigid interlocking connection.
3. The latch actuation electromechanical device (10) according to claim 2, wherein the clutch mechanism (14) comprises a driving wheel (141) rotatably linked to an output axis of the actuator (13), a driven wheel (142) rotatably linked to the coupling mechanism (11), at least one planet wheel (144) hingedly mounted on a movable support (143) about the axis of the driving wheel (141) allowing positioning the planet wheel (144) in different positions around the axis of the driving wheel (141).
4. The latch actuation electromechanical device (10) according to any one of claims 1 to 3, wherein the coupling mechanism (11) is rotatably fastened on the support (16).
5. The latch actuation electromechanical device (10) according to any one of claims 1 to 4, wherein the support (16) comprises an upper subplate (162) and a lower subplate (161) connected to each other while delimiting a space within which the components fastened to the support (16) are housed at least partially, the damper elements (24) which ensure the dampened mechanical linkage of the support (16) to the outer case (18) comprising damper blocks formed by an elastically-deformable material interposed between the lower subplate (162) and the outer case (18).
6. The latch actuation electromechanical device (10) according to any one of claims 1 to 5, wherein the outer case (18) comprises a mounting plate (181) comprising fastening elements to enable fastening of the mounting plate (181) on the face (201) of the door leaf (200) and wherein the damper elements (24) which ensure the dampened mechanical linkage of the support (16) to the outer case (18) are interposed between the support (16) and the mounting plate (181) so that said vibration decoupling is ensured between the mounting plate (181) and the support (16).
7. The latch actuation electromechanical device (10) according to claim 6, wherein the outer case (18) comprises a dampening plate (183) formed by an elastically-deformable material, fastened on an outer face of the mounting plate (181) and intended to be interposed between the mounting plate (181) and the face (201) of the door leaf (200) when the outer case (18) is fastened on the door leaf (200), so as to confer a vibration decoupling between the mounting plate (181) and the door leaf (200).
8. The latch actuation electromechanical device (10) according to any one of claims 1 to 7, wherein the coupling mechanism (11) comprises a rotational drive part (20) delimiting first rotational coupling elements (21) adapted to cooperate with a key (106) inserted into the rotor of the latch cylinder (101) in a manner making the key (106) and the rotational drive part (20) rotataby secured about the axis of rotation of the rotational drive part (20), and wherein the first rotational coupling elements (21) delimited by the rotational drive part (20) comprise elastically-deformable damper elements (23) intended to be interposed between the rotational drive part (20) and the key (106) when the key (106) cooperates with the first rotational coupling elements (21) so as to confer a vibration decoupling between the rotational drive part (20) and the key (106).
9. The latch actuation electromechanical device (10) according to claim 8, wherein the coupling mechanism (11) comprises a linkage part (12) independent from the rotational drive part (20) and comprising second rotational coupling elements (22) adapted to cooperate with the first rotational coupling elements (21) to make the linkage part (12) and the rotational drive part (20) rotatably secured about the axis of rotation of the rotational drive part (20), the linkage part (12) being adapted to cooperate with a coupling member (102) projecting from the rotor of the latch cylinder (101) in a manner making the coupling member (102) and the linkage part (12) rotatably secured about the axis of rotation of the rotational drive part (20), and wherein the damper elements (23) are interposed between the rotational drive part (20) and the linkage part (12) when the second rotational coupling elements (22) cooperate with the first rotational coupling elements (21) in a manner conferring a vibration decoupling between the linkage part (12) and the rotational drive part (20).
10. The latch actuation electromechanical device (10) according to any one of claims 1 to 9, wherein the latch actuation electromechanical device (10) comprises fastening elements for fastening the support (16) to the outer case (18) while conferring at least one possibility of displacement in a plane transverse to the axis of rotation of the coupling mechanism (11) relative to the outer case (18) and wherein the damper elements (24) which ensure the dampened mechanical linkage of the support (16) to the outer case (18) have the capability of absorbing the relative movements of the support (16) relative to the outer case (18) at least in the direction of displacement of the support (16) conferred by said fastening elements.

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