EP3677738B1 - Electromechanical device for actuating lock capable of engaging equally with a key inserted in the rotor of the lock cylinder and with a coupling member connected to the rotor of the lock cylinder - Google Patents

Description

Technical field of the invention

• un mécanisme d'accouplement mobile en rotation apte à être rendu solidaire en rotation avec un rotor d'un cylindre de serrure de la serrure,
• un actionneur comprenant un moteur électrique pour entraîner en rotation électriquement le mécanisme d'accouplement,
• un bouton de manoeuvre mobile en rotation adapté pour une prise manuelle et permettant d'entraîner manuellement en rotation le mécanisme d'accouplement.

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

• a coupling mechanism movable in rotation capable of being made integral in rotation with a rotor of a lock cylinder of the lock,
• an actuator comprising an electric motor for electrically rotating the coupling mechanism,
• a rotating operating button adapted for manual grip and allowing the coupling mechanism to be manually rotated.

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 leaf and/or to lock or unlock the lock.

State of the art

Conventionally, a lock comprises a lock cylinder having a stator mounted on the leaf 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 activates in translation a deadbolt, the latter being capable of locking the lock by insertion into a striker secured to a fixed frame, or doorframe, on which the leaf is mounted . The lock may also include a handle pivotally mounted on the leaf 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 leaf and/or to lock or unlock the lock.

There are lock cylinders equipped with a single clutch. In this case, the installation of a key at the internal lock entry prevents the possibility of using a key on the side of the external lock entry. There are also double-clutch lock cylinders to possibly make it possible to operate an external key even if there is a key on the internal side. These dual-clutch cylinders are more expensive than single-clutch ones.

There are locks for which the rotor is designed for an angular travel limited to approximately a quarter of a turn, as is the case for example on the North American market, and locks for which the rotor is designed for an angular travel of several turns, as is the case for example on the European market.

There are electromechanical devices intended to operate such locks in a motorized manner, 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 motorized lock for its locking and unlocking.

Electromechanical lock actuation devices generally comprise a source of electrical energy to power an actuator comprising an electric motor and an electronic control unit capable of communicating with the outside, in particular with a view to receiving external instructions and of the transmission of 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 inserting one of the keys admitted by the lock cylinder at the level of the interior lock entrance, 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 actuation device so that these two elements are integral in rotation with each other.

An electromechanical lock operating device designed to be able to cooperate with a key inserted in the rotor of the lock cylinder is not able to cooperate with a coupling member of the rotor of the lock cylinder. Symmetrically, an electromechanical lock actuation device designed to cooperate with a coupling member of the rotor of the lock cylinder cannot cooperate with a key inserted in the rotor of the lock cylinder. The exclusive operation of an electromechanical lock operating device can represent a barrier to commercial development and limits the offer for customers with a lock of a given type.

The document US 6,591,643 B1 describes an electromechanical lock actuation device further comprising a removable insert positionable within a U-shaped channel for positioning on a key within the lock without a deadbolt handle. This device allows for use with a key in a lock without a deadbolt handle.

In addition, the use of an electromechanical lock actuation device adapted to collaborate with a key inserted in the rotor of the lock cylinder is limited, in practice, to double clutch type lock cylinders because the problem of not being able to use a key on the outer side of a single-clutch rotor as long as a key is inserted on the inner side of the rotor represents a constraint in use and therefore a sometimes prohibitive inconvenience for users. To be able to operate such an electromechanical lock actuation device, it is necessary for the user with a single clutch lock cylinder to change the lock cylinder to either have a double clutch lock cylinder, or to change the lock cylinder for a cylinder fitted with a coupling member. In the case of double clutch cylinders, beyond the practical inconvenience of having to modify the lock cylinders and the lock key sets, such lock cylinders are significantly more expensive than single clutch lock cylinders. On the other hand, in the case of a double clutch lock cylinder, the fact that the key on the inner side does not turn when the key is used on the outside implies that the actuator and the control unit of the electromechanical lock actuation device is not able to detect actions carried out on the exterior side of the lock cylinder, which induces significant security issues to be managed or management for the electromechanical lock actuation device.

The use of an electromechanical lock actuation device adapted to collaborate with the coupling member of the rotor of the lock cylinder makes it possible to use the key on the exterior side and makes it possible to detect the actions carried out on the exterior side of the lock cylinder. lock. But for users who have a lock cylinder that does not have a coupling member secured to the rotor of the lock cylinder, it is necessary to change the lock cylinder they have. Once again this involves inconvenience and costs for the user.

There is also a need to have a solution adapted to the greatest number of existing lock cylinders and also allowing the rotor of the lock cylinder to be able to be rotated manually even after removal of the electromechanical lock actuation device, whether this either for maintenance, safety or security reasons, in particular when the coupling member does not have radial manual drive means.

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 offers a great diversity in the choice of locks with which it is capable of cooperate and which limits the need to have to change the lock cylinder for a user.

• un mécanisme d'accouplement mobile en rotation susceptible d'être solidaire en rotation avec un rotor d'un cylindre de serrure de la serrure,
• un actionneur comprenant un moteur électrique et permettant d'entrainer en rotation électriquement le mécanisme d'accouplement,
• un bouton de manoeuvre mobile en rotation adapté pour une prise manuelle et permettant d'entrainer manuellement en rotation le mécanisme d'accouplement,

• dans lequel le mécanisme d'accouplement comprend d'une part une pièce d'entrainement en rotation susceptible d'être accouplée en rotation de manière réversible avec une clé insérée dans le rotor du cylindre de serrure et comprenant des premiers éléments de couplage en rotation aptes à coopérer avec la clé d'une manière rendant solidaires en rotation la clé et la pièce d'entrainement en rotation autour de l'axe de rotation de la pièce d'entrainement en rotation, d'autre part une pièce de liaison apte à constituer un adaptateur intermédiaire entre la pièce d'entrainement en rotation et un organe de couplage du rotor du cylindre de serrure en saillie du rotor du cylindre de serrure,
• dans lequel la pièce de liaison est susceptible d'être accouplée en rotation de manière réversible avec la pièce d'entrainement en rotation et comprend des deuxièmes éléments de couplage en rotation aptes à coopérer, lorsque la pièce de liaison est accouplée avec la pièce d'entrainement en rotation, avec les premiers éléments de couplage en rotation pour rendre solidaires en rotation la pièce de liaison et la pièce d'entrainement en rotation autour de l'axe de rotation de la pièce d'entrainement en rotation,
• dans lequel la pièce de liaison comprend des troisièmes éléments de couplage en rotation aptes à coopérer avec l'organe de couplage du rotor du cylindre de serrure d'une manière rendant solidaires en rotation l'organe de couplage et la pièce de liaison autour de l'axe de rotation de la pièce d'entrainement en rotation.

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

• a coupling mechanism movable in rotation capable of being integral in rotation with a rotor of a lock cylinder of the lock,
• an actuator comprising an electric motor and making it possible to electrically rotate the coupling mechanism,
• a rotating operating button adapted for manual grip and allowing the coupling mechanism to be manually rotated,

• in which the coupling mechanism comprises on the one hand a rotational drive part capable of being coupled in rotation in a reversible manner with a key inserted in the rotor of the lock cylinder and comprising first rotational coupling elements capable of cooperating with the key in a manner making the key and the rotational drive part integral in rotation around the axis of rotation of the rotational drive part, on the other hand a connecting part capable of constituting an intermediate adapter between the rotational drive part and a coupling member of the rotor of the lock cylinder projecting from the rotor of the lock cylinder,
• in which the connecting part is capable of being coupled in rotation in a reversible manner with the rotational drive part and comprises second rotational coupling elements capable of cooperating, when the connecting part is coupled with the part of rotational drive, with the first rotational coupling elements to make the connecting part and the rotational drive part integral in rotation around the axis of rotation of the rotational drive part,
• in which the connecting part comprises third rotational coupling elements capable of cooperating with the coupling member of the rotor of the lock cylinder in a manner making the coupling member and the connecting part integral in rotation around the axis of rotation of the rotation drive part.

This solution has the advantage of very good adaptation to existing lock cylinders. Indeed, this solution is adapted to a very widespread and universal coupling member, such as in particular a fork with two branches, a cylindrical shape or a straight rod for example of rectangular section.

Another advantage is that the solution provides an adapter allowing, when the electromechanical lock actuation device is removed, manual drive of the rotor of the lock cylinder when this rotor is equipped with a coupling member devoid of manual grip, such as in particular a fork with two branches, a cylindrical shape or a straight rod, for example of rectangular section. This offers the very advantageous possibility of being able to rotate manually, via manual gripping of the adapter, the coupling member and therefore the rotor of the lock cylinder of the lock, even when the coupling member does not offer alone, a possible or sufficient grip to allow rotational actuation of the rotor of the lock cylinder of the lock. This may be the case when the electromechanical lock operating device must be dismantled for maintenance reasons (the device is for example under repair), for security reasons (cancellation of all electronic keys which may have been fraudulently issued ), for safety reasons (for example blocking of the electromechanical lock actuation device by a fire, following from which it is then necessary to remove the electromechanical lock actuation device and open the lock by turning the lock cylinder by hand using the adapter which remains in place on the coupling member.

Some preferred but non-limiting aspects are as follows.

The coupling member is intended to be coupled to a manual button.

The coupling member has the general shape of a fork with two branches offset radially.

The coupling member has the shape of a straight rod.

The coupling member is in one piece with the rotor of the lock cylinder.

The coupling member adopts a generally cylindrical shape.

The coupling member adopts a general shape devoid of radial manual drive means.

The rotational drive part delimits a receiving housing adapted to receive the connecting part by reversible insertion of the connecting part into the receiving housing, the first rotational coupling elements comprising at least one coupling slot delimited by the receiving housing and oriented transversely to the axis of rotation of the rotating drive part.

The connecting part comprises at least one coupling wing intended to be inserted into the coupling slot when the connecting part is inserted into the receiving housing, the second rotating coupling elements comprising said at least one wing. coupling.

The receiving housing delimits two coupling slots aligned with each other in a common direction passing through the axis of rotation of the rotating drive part and the connecting part comprises two coupling wings so as to that the connecting part adopts a general butterfly shape.

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

The third rotational coupling elements are arranged in an orifice delimited by a central body of the connecting part and configured so as to be able to cooperate, after coupling of the connecting part with the rotational drive part and after insertion of the coupling member in said orifice, with fourth rotating coupling elements secured to the coupling member.

The coupling mechanism comprises on the one hand a thrust part capable of moving in the rotational drive part along the axis of rotation of the rotational drive part and of coming to bear against the key inserted into the rotor of the lock cylinder when the key cooperates with the first coupling elements in rotation, and on the other hand a return element urging the thrust part in a direction directed towards the rotor of the lock cylinder.

The electromechanical lock actuation device comprises recognition elements making it possible to identify, when the coupling mechanism is integral in rotation with the rotor of the lock cylinder, whether the rotation drive part is coupled in rotation with a key inserted in the rotor of the lock cylinder and cooperating with the first rotational coupling elements carried by the rotational drive part or if the rotational drive part is rotatably coupled with the connecting part whose second elements of rotational coupling cooperate with the first rotational coupling elements carried by the rotational drive part.

Summary description of the drawings

• La figure 1 est une vue en perspective d'un exemple de serrure montée sur un battant de porte.
• La figure 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.
• La figure 3 une vue en coupe longitudinale d'un exemple de dispositif électromécanique d'actionnement de serrure selon l'invention, la pièce de liaison étant accouplée à la pièce d'entrainement.
• La figure 4 est une vue en perspective de l'actionneur et d'un mécanisme d'embrayage débrayable.
• La figure 5 est en vue en perspective partielle représentant selon une coupe partielle le mécanisme d'actionnement alors couplé à l'organe de couplage du rotor du cylindre de serrure.
• La figure 6 est en vue en perspective du dispositif électromécanique d'actionnement de serrure en coupe au niveau du mécanisme d'actionnement alors couplé à l'organe de couplage du rotor du cylindre de serrure.
• La figure 7 est une vue en coupe longitudinale du dispositif électromécanique d'actionnement de serrure à l'état monté sur un battant de porte et couplé à l'organe de couplage du rotor du cylindre de serrure.
• La figure 8 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.
• La figure 9 est une vue en perspective partielle du dispositif électromécanique d'actionnement de serrure dans une situation de couplage à une clé destinée à être insérée dans le rotor du cylindre de serrure, la pièce de liaison étant absente.
• La figure 10 est en vue en perspective du dispositif électromécanique d'actionnement de serrure en coupe au niveau du mécanisme d'actionnement alors couplé à une clé destinée à être insérée dans le rotor du cylindre de serrure, la pièce de liaison étant absente.

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 :

• There figure 1 is a perspective view of an example of a lock mounted on a door leaf.
• There figure 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.
• There Figure 3 a longitudinal sectional view of an example of an electromechanical lock actuation device according to the invention, the connecting part being coupled to the driving part.
• There Figure 4 is a perspective view of the actuator and a disengageable clutch mechanism.
• There Figure 5 is in partial perspective view representing in a partial section the actuation mechanism then coupled to the coupling member of the rotor of the lock cylinder.
• There Figure 6 is in perspective view of the electromechanical lock actuation device in section at the level of the actuation mechanism then coupled to the coupling member of the rotor of the lock cylinder.
• There Figure 7 is a longitudinal sectional view of the electromechanical lock actuation device in the state mounted on a door leaf and coupled to the coupling member of the rotor of the lock cylinder.
• There figure 8 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.
• There Figure 9 is a partial perspective view of the electromechanical lock actuation device in a situation of coupling to a key intended to be inserted into the rotor of the lock cylinder, the connecting part being absent.
• There Figure 10 is in perspective view of the electromechanical lock actuation device in section at the level of the actuation mechanism then coupled to a key intended to be inserted into the rotor of the lock cylinder, the connecting part being absent.

detailed description

On the figures 1 to 10 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.

The electromechanical lock actuation device 10 which is shown is intended to be mounted on a face 201 of a leaf 200 equipped with a lock 100, for example for a door pivotally mounted on a frame. For example, face 201 corresponds to a face of leaf 200 intended to be positioned on the interior side of the part closed by leaf 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 leaf 200 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 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 leaf 200 is mounted in order to lock or unlock the lock 100 and/or to open or close the leaf 200. The arrangement of such bolts 103, 104 is for example described in the document FR2795120 . The lock 100 may also include a handle 105 pivotally mounted on the leaf 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. 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 or with a lock cylinder 101 comprising on the interior side a coupling member 102 intended to be coupled to a manual button. The coupling between the coupling member 102 and the manual button, which are two separate parts, makes it possible to mount the manual button in a removable manner on the coupling member. When the electromechanical lock actuation device 10 is coupled to the coupling member 102, the manual button is previously disassembled and removed from the coupling member in order to allow coupling between the electromechanical lock actuation device 10 and the coupling member 102. Rotational actuation of the rotor of the lock cylinder 101 in a motorized manner, whether by means of a key 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 leaf 200 and/or to lock or unlock the lock 100.

The electromechanical lock actuation device 10 comprises a rotary coupling mechanism 11 described below in detail, capable of being made integral in rotation with the rotor of the lock cylinder 101 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 comprising an electric motor 13, adapted to drive the actuating mechanism 11 in rotation electrically, so as to electrically rotate the rotor of the lock cylinder 101 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 grip and 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 inserted at the external lock entrance and/or via the operating button 15 of the electromechanical actuation device lock 10, it is necessary to uncouple the rotor of the lock cylinder 101 relative to the actuator. The electromechanical lock actuation device 10 comprises for this purpose a disengageable clutch mechanism 14 interposed between the coupling mechanism 11 and the actuator and varying between a disengaged configuration in which the electric motor 13 is not coupled to the coupling mechanism 11 and at least one engaged configuration in which the electric motor 13 is coupled to the coupling mechanism 11 for its rotational drive. The disengageable clutch mechanism 14 can be designed so as to be able to envisage a first engaged configuration in which the electric motor 13 is capable of rotating the coupling mechanism 11 in a first direction of rotation and a second engaged configuration in which the electric motor 13 is capable of rotating the coupling mechanism 11 in a second direction of rotation opposite to the first direction of rotation.

The disengageable clutch mechanism 14 can operate according to friction principles, for example by taking up the teachings of the document FR3028282A1 . Alternatively, the disengageable clutch mechanism 14 can be based on the known principle of a tilting yoke. For example, as shown in the Figure 4 in particular, the disengageable clutch mechanism 14 may comprise a driving wheel 141 linked in rotation to an output axis of the actuator, a driven wheel 142 linked in rotation to the coupling mechanism 11, at least one satellite wheel 144 mounted from satellite manner 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 disengageable clutch mechanism 14 are toothed wheels.

It is possible to provide that the disengageable clutch mechanism 14 comprises a single satellite wheel 144 serving in the first engaged configuration and the second engaged configuration. Alternatively, as shown, the disengageable 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 a direction of rotation.

When the electric motor 13 is powered so that it rotates in a first direction in order to act on the rotor of the lock cylinder 101 via the coupling member 102, 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 electric motor 13 is powered so that it rotates in a second direction in order to act on the rotor of the lock cylinder 101 via the coupling member 102, 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 on the mobile support 143 a torque 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.

The disengaged configuration adopted on the Figure 5 corresponds to an intermediate position of the mobile support 143 in which neither of the two satellite wheels 144 is engaged with the driven wheel 142.

The electromechanical lock actuation device 10 comprises an electrical energy storage device 16, such as autonomous batteries, to power the actuator or even a control unit capable of communicating with the outside via communication means of radio frequency, wifi, Bluetooth or equivalent type, 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 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 or any other element necessary for the operation of the lock 100 or the electromechanical device of lock actuation 10.

The coupling mechanism 11 is mounted to rotate around a first axis of rotation and the operating button 15 is mounted to rotate about a second axis of rotation in a general arrangement where the first axis of rotation and the second axis of rotation 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°. THE figures 3 And 7 illustrate 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 P 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 transforming a rotational movement of the button operating mechanism 15 in a rotational movement of the coupling mechanism 11 interposed between the coupling mechanism 11 and the operating button 15.

The transmission mechanism 17 comprises 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 engagement with the interposition of at least one intermediate wheel 173. In particular, the different wheels used for the transmission mechanism 17 are toothed wheels.

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 173 and with the satellite wheels 144 respectively of the transmission mechanism 17 and of the clutch mechanism 14 which are generally superimposed on one another to optimize the size.

The housing 18 is provided with fixing elements intended to fix the housing 18, and therefore the electromechanical lock actuation device 10, on the face 201 of the leaf 200. The housing 18 is configured to contain, preferably in a sealed manner, at least the transmission mechanism 17, the coupling mechanism 11, the disengageable clutch mechanism 14 and the electrical energy storage device 16. The housing 18 gives access to the operating button 15 from the outside of the housing 18 so that the operating button 15 is placed, axially along the main axis 15 can be arranged projecting from the 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 18 so that the operating button 18 is flush with or below the upper face of the housing 18.

In order to optimize the overall size, the electric motor 13 of the actuator is housed in the operating button 15. The driving wheel 171 of the transmission mechanism 17 housed in the internal volume delimited by the operating button 15 takes the form a bell rotatably overlapping the casing of the electric motor 13.

Unlike the possibilities offered by the solutions described in relation to the state of the art, the coupling mechanism 11 of the electromechanical lock actuation device 10 described in this document can advantageously be coupled in rotation with the lock cylinder 101 , with a view to its motorized drive via the electric motor 13 or manual via the operating button 15, indifferently via a key 106 introduced into the rotor of the lock cylinder 101 at the level of the interior lock entry or via 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 actuation device lock 10 is mounted on the leaf 200) when the manual button is installed.

Thus, the electromechanical lock actuation device 10 described in this document 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 l one and the 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 a rotational drive part 20 movable in rotation, the axis of rotation of the rotational drive part 20 corresponding to the axis of rotation of the drive mechanism 11 which is oriented in the first direction D1 mentioned above. The axis of the rotor of the lock cylinder 101 is aligned with the axis of rotation of the rotation drive part 20.

The rotation drive part 20 can be coupled in rotation in a reversible manner with a key 106 inserted in the rotor of the lock cylinder 101. The rotation drive part 20 comprises first rotation coupling elements 21 able to cooperate with the key 106 in a manner making the key 106 and the rotation drive part 20 integral in rotation around the axis of rotation of the rotation drive part 20. The cooperation of the first elements of rotational coupling 21 with the key 106 is automatically obtained by inserting the head of the key 106 into the first rotational coupling elements 21, in particular in a collinear manner with the axis of rotation of the rotational drive part 20. The figure 8 illustrates the situation before inserting the head of the key 106 into the rotating drive part, unlike the figures 9 And 10 .

The coupling mechanism 11 also comprises a connecting part 25 capable of constituting an intermediate adapter between the rotational drive part and the coupling member 102. The connecting part 25, which is in particular formed in an independent unitary part of the other parts of the coupling mechanism 11, is capable of being coupled in rotation in a reversible manner with the rotation drive part 20 and comprises second rotational coupling elements 22 capable of cooperating, when the connecting part 25 is coupled with the rotation drive part 20, with the first rotation coupling elements 21 to make the connecting part 25 and the rotation drive part 20 integral in rotation around the axis of rotation of the part rotation drive 20. The cooperation of the first rotational coupling elements 21 with the connecting piece 25 is automatically obtained by the insertion of the second rotational coupling elements 22 in the first rotational coupling elements 21, in particular of colinear manner with the axis of rotation of the rotation drive part 20. It is therefore a simple slide connection. THE figures 3, 5 , 6 and 7 illustrate the situation after the insertion of the connecting part 25 into the first rotational coupling elements 21 secured to the rotational drive part 20.

The connecting part 25 comprises third rotational coupling elements 23 capable of cooperating with the coupling member 102 of the rotor of the lock cylinder 101 in a manner making the coupling member 102 and the connecting part integral in rotation 25 around the axis of rotation of the rotation drive part 20. The cooperation of the third rotation coupling elements 23 with the coupling member 102 is automatically obtained by the insertion of the connecting part 25 on the coupling member 102, in particular co-linear with the axis of rotation of the rotation drive part 20. The figures 1 and 2 show the situations respectively before and after the insertion of the connecting piece 25 on the coupling member 102.

The rotational drive part 20 defines a receiving housing 26 adapted to receive the connecting part 25 by reversible insertion of the connecting part 25 into the receiving housing 26, which means that the connecting part 25 can be removed out of the receiving housing 26 as soon as the user wishes, typically when he wishes to use the connecting part 25 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. Typically, for good rotational training, each coupling slot 261 is oriented perpendicular to the axis of rotation of the rotational 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 figures 3, 5 , 6 and 7 illustrate the situation after the insertion of the connecting part 25 into the receiving housing 26. The coupling slots 261, format the first coupling elements in rotation 21, are intended to receive the flat-shaped head of the key 106 ( Figure 9 ).

The connecting part 25 comprises at least one coupling wing 251 intended to be inserted into the coupling slot 261 when the connecting part 25 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 25 then advantageously comprises two coupling wings 251 so that the connecting part 25 adopts a general butterfly shape, as is visible on the figure 2 .

The receiving housing 26 and the connecting part 25 are configured so that the insertion of the connecting part 25 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 third rotational coupling elements 23 are arranged in an orifice delimited by a central body 252, for example generally cylindrical, of the connecting part 25 and configured so as to be able to cooperate, after coupling of the connecting part 25 with the part rotation drive 20 and after insertion of the coupling member 102 into this orifice, with fourth rotation coupling elements 24 secured to the coupling member 102. Each of the coupling wings 251 extends in particular radially around and from the outside of the central body 252. The third rotational coupling elements 23 are for example formed by radial impressions such as recesses, shoulders or equivalent, having a shape at least partly complementary to the constituent members of the fourth rotational coupling elements 24. In the illustrated variant, the coupling member 102 has a general fork shape with two branches 102a, 102b, typically parallel to each other axially, and offset radially relative to each other, while the fourth coupling elements in rotation 24 are precisely formed by these two branches 102a, 102b of the coupling member 102 (visible for example on the figure 1 ) offset from each other radially. The third rotational coupling elements 23 are formed in particular on the internal wall of the orifice delimited by the central body 252. They appear here as imprints adopting a shape complementary to the external shape of the two branches 102a, 102b of the coupling member 102. They can also include radial lugs (visible on the figure 8 ) arranged to project radially towards the inside of the orifice which is delimited by the central body 252, these radial lugs being configured to be inserted into the radial interval which separates the two branches 102a, 102b of the member of coupling 102 at the time of insertion of the connecting part 25 on the coupling member 102. This insertion of the radial lugs in the interval which separates the two branches 102a, 102b of the coupling member 102 has the effect of participate in the relative rotation blocking between the connecting part 25 and the coupling member 102. This type of coupling member 102 is extremely widespread and relatively universal, which gives the electromechanical lock actuation device very great adaptability to existing lock cylinders.

Alternatively, not shown, the coupling member 102 has a cylindrical shape or is constituted by a straight rod, for example of rectangular section. The shape of the coupling member is designed so that the coupling member is breakable. Here too, this type of coupling member is very widespread and relatively universal, which gives the electromechanical lock actuation device very great adaptability to existing lock cylinders. The third rotational coupling elements delimited by the connecting part 25 are configured in a suitable manner to adapt by complementarity of shape, by axial insertion of the connecting part 25 on the coupling member 102, with the fourth elements of rotational coupling delimited by the coupling member 102.

In general, the cooperation of the third and fourth coupling elements 23, 24 with each other is, generally, obtained by the insertion of the connecting part 25 on the coupling member 102, this insertion taking place in particular in a manner collinear with the axis of rotation of the rotation drive part 20. The figure 2 , 5 , 6 and 7 illustrate the situation after this insertion, unlike the Figure 3 which illustrates the situation before the installation of the connecting part 25 on the coupling member 102.

According to a non-limiting embodiment, the coupling member 102 is in one piece with the rotor of the lock cylinder of the lock. Typically the coupling member comes from one piece with the rest of the rotor of the lock cylinder. It is however possible that the coupling member is formed in a part separate from the rest of the rotor of the lock cylinder, these two parts being made integral with each other to be in one piece by any means such as example welding or bonding.

According to one embodiment, the coupling member 102 adopts a generally cylindrical shape, which is the case in the case where the coupling member 102 has the shape of a fork with two branches 102a, 102b and when it presents a shape of a cylindrical tail or a straight rod. In the latter case, even in the case of a rectangular section, the dimensions of the cutting section are so small that the rectangular flat rod cannot be grasped radially in a manner allowing the coupling member to be rotated manually. , and concomitantly the rotor of the lock cylinder. The shape of the coupling member is devoid of radial manual drive means and it is the connecting part 25, once attached to the coupling member, which allows this manual input adapted to transmit a rotary torque sufficient to rotate the coupling member and the lock cylinder rotor.

Preferably, the coupling mechanism 11 comprises a thrust part 27 capable of moving in the rotation drive part 20 along its axis of rotation and of coming to bear against the key 106 ( Figure 10 ) inserted into the rotor of the lock cylinder 101 when the key 106 cooperates with the first rotating coupling elements 21, or against the connecting piece 25 when the drive mechanism 11 cooperates with the coupling member 102 by means of interposition of the connecting part 25. The coupling mechanism 11 also comprises a return element 28, for example constituted by one or more compression springs, urging the thrust part 27 in a direction directed towards the rotor of the lock cylinder 101. In other words, the key 106 inserted in the rotor of the lock cylinder 101 is urged by the thrust part 27 in opposition to a movement of the thrust part 27 imposed by the key 106 relative to the part rotation drive 20 along the axis of rotation of the rotation drive part 20 in a direction away from the lock cylinder 101. These arrangements allow the key 106 to inadvertently come out of the rotor of the lock cylinder 101, particularly in the event of slamming of the leaf 200.

The electromechanical lock actuation device 10 comprises recognition elements making it possible to identify, when the coupling mechanism 11 is integral in rotation with the rotor of the lock cylinder 101, whether the rotation drive part 20 is coupled in rotation with a key 106 inserted in the rotor of the lock cylinder 101 and cooperating with the first rotational coupling elements 21 carried by the rotational drive part or if the rotational drive part 20 is coupled in rotation with the connecting part 25 whose second rotational coupling elements 22 cooperate with the first rotational coupling elements 21 carried by the rotational drive part 20.

Such recognition elements can be obtained by presence sensors or recognition of the object among a key 106 and a coupling member 102 or for example by sensors recognizing the shape of the rear plate of the housing 18 used, the shape of this plate being adapted to the nature of the lock cylinder 101 used, that is to say depending on the fact that it has an internal lock entry for the introduction of a key 106 or a locking member coupling 102 permanently present.

Claims (13)

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

   - a coupling mechanism (11) movable in rotation capable of being secured in rotation with a rotor of a latch cylinder (101) of the latch (100),

   - an actuator comprising an electric motor (13) and making it possible to electrically drive in rotation the coupling mechanism (11),

   - an operating button (15) movable in rotation adapted for a manual grip and allowing the coupling mechanism (11) to be manually driven in rotation,

   electromechanical latch actuation device (10) in which the coupling mechanism (11) comprises on the one hand a rotational drive part (20) capable of being coupled in rotation in a reversible manner with a key (106) inserted in the rotor of the latch cylinder (101) and comprising first rotational coupling elements (21) capable of cooperating with the key (106) in a manner making the key (106) and the rotational drive part secured in rotation (20) about the axis of rotation of the rotational drive part (20), on the other hand a connecting part (25) capable of constituting an intermediate adapter between the rotational drive part (20) and a coupling member (102) of the rotor of the latch cylinder (101) projecting from the rotor of the latch cylinder (101),

   in which the connecting part (25) is capable of being coupled in rotation in a reversible manner with the rotational drive part (20) and comprises second rotational coupling elements (22) capable of cooperating, when the connecting part (25) is coupled with the rotational drive part (20), with the first rotational coupling elements (21) to make the connecting part (25) and the rotational drive part (20) secured in rotation about the axis of rotation of the rotational drive part (20),

   in which the connecting part (25) comprises third rotational coupling elements (23) capable of cooperating with the coupling member (102) of the rotor of the latch cylinder (101) in a manner making the coupling member (102) and the connecting part (25) secured in rotation about the axis of rotation of the rotational drive part (20).
2. The electromechanical latch actuation device (10) according to claim 1, wherein the coupling member (102) is intended to be coupled to a manual button.
3. The electromechanical latch actuation device (10) according to any of claims 1 or 2, wherein the coupling member (102) has a general fork shape with two branches (102a, 102b) radially offset.
4. The electromechanical latch actuation device (10) according to any of claims 1 or 2, wherein the coupling member has the shape of a straight rod.
5. The electromechanical latch actuation device (10) according to any of claims 1 to 4, wherein the coupling member is in one piece with the rotor of the latch cylinder (101).
6. The electromechanical latch actuation device (10) according to any of claims 1 to 5, wherein the coupling member (102) adopts a generally cylindrical shape, in particular devoid of radial manual drive means.
7. The device according to any of claims 1 to 6, wherein the rotational drive part (20) delimits a receiving housing (26) adapted to receive the connecting part (25) by reversible insertion of the connecting part (25) in the receiving housing (26), the first rotational coupling elements (21) comprising at least one coupling slot (261) delimited by the receiving housing (26) and oriented transversely to the axis of rotation of the rotational drive part (20).
8. The electromechanical actuation device (10) according to claim 7, wherein the connecting part (25) comprises at least one coupling wing (251) intended to be inserted into the coupling slot (261) when the connecting part (25) is inserted into the receiving housing (26), the second rotational coupling elements (22) comprising said at least one coupling wing (251).
9. The electromechanical latch actuation device (10) according to any of claims 7 or 8, wherein the receiving housing (26) delimits two coupling slots (261) aligned with one another along a common direction passing through the axis of rotation of the rotational drive part (20) and in which the connecting part (25) comprises two coupling wings (251) so that the connecting part (25) adopts a general butterfly shape.
10. The electromechanical latch actuation device (10) according to any of claims 7 to 9, wherein the receiving housing (26) and the connecting part (25) are configured so that the insertion of the connecting part (25) in the receiving housing (26) is produced by a relative displacement collinear with the axis of rotation of the rotational drive part (20).
11. The electromechanical latch actuation device (10) according to any of claims 1 to 10, wherein the third rotational coupling elements (23) are arranged in an orifice delimited by a central body (252) of the connecting part (25) and configured so as to be able to cooperate, after coupling of the connecting part (25) with the rotational drive part (20) and after an insertion of the coupling member (102) into said orifice , with fourth rotational coupling elements (24) secured to the coupling member (102).
12. The electromechanical latch actuation device (10) according to any of claims 1 to 11, wherein the coupling mechanism (11) comprises on the one hand a thrust part (27) capable of being displaced in the rotational drive part (20) along the axis of rotation of the rotational drive part (20) and bearing against the key (106) inserted in the rotor of the latch cylinder (101) when the key (106) cooperates with the first rotational coupling elements (21), and on the other hand a return element (28) urging the thrust part (27) in a direction directed towards the rotor of the latch cylinder (101).
13. The electromechanical latch actuation device (10) according to any of claims 1 to 12, comprising recognition elements making it possible to identify when the coupling mechanism (11) is secured in rotation with the rotor of the cylinder latch (101), if the rotational drive part (20) is coupled in rotation with a key (106) inserted in the rotor of the latch cylinder (101) and cooperating with the first rotational coupling elements (21) carried by the rotational drive part (20) or if the rotational drive part (20) is coupled in rotation with the connecting part (25) whose second rotational coupling elements (22) cooperate with the first rotational coupling elements (21) carried by the rotational drive part (20).

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