EP3350398A1

EP3350398A1 - Device for opening and closing a leaf, and door or window including such a device

Info

Publication number: EP3350398A1
Application number: EP16775863.0A
Authority: EP
Inventors: Bernadette WILLEMIN; Maxime SARTORI; Adrien IMHOF
Original assignee: Evostyle Sarl
Current assignee: Willemin Bernadette
Priority date: 2015-09-18
Filing date: 2016-09-16
Publication date: 2018-07-25
Anticipated expiration: 2036-09-16
Also published as: EP3350398B1; CH711553A1; WO2017046761A1

Abstract

The invention relates to a device (300) for opening or closing a leaf (2) relative to a frame (3) of a door (1) or window, which comprises: a first assembly (100) comprising a hollow cam (104), said first assembly (100) being intended for being secured either to the frame (3) or to the leaf (2); a second assembly (200) intended for being secured either to the leaf (2) or to the frame (3), the second assembly (200) comprising: a rotary motor (210); a screw (218) connected to said motor (210); a nut (224) inserted onto the screw (218); and a first roller (216) rigidly connected to said nut and inserted into said hollow cam (104), said rotary motor (210) being arranged to rotate said screw (218) on itself, and thus to move said nut according to a translation movement (224), so that said roller (216) slides in said hollow cam (104), in order to move the leaf (2) at an angle relative to the frame (3).

Description

Device for opening and closing leaf, and door or window comprising such a device

Technical area

The present invention relates to closing devices and leaf openings. These leaves can include a door, a window, a gate, shutters, or any other similar element.

State of the art

Doors, windows or the like generally comprise a door leaf connected by one or generally more hinges to a fixed frame. The axis of rotation of the leaf with respect to the frame is usually vertical, which allows to open it by the handle without raising the center of gravity and therefore with reduced effort.

Devices for opening and closing automatic leaf are known in the state of the art.

The document FR26661111 discloses a door and window closing and opening mechanism in which an actuator drives an eccentric piece connected to the leaf. This device has several moving parts visible and accessible by a user, which poses security problems if the user approaches his fingers moving parts. Moving parts are further exposed to dirt that can block the mechanism. The axis of the motor is parallel to the longitudinal axis of rotation of the leaf, which makes its integration difficult.

FR2658234 discloses a closing mechanism and opening door and window by means of a motor mounted in the axis of rotation of the leaf. Miniaturization is difficult.

FR2312634 discloses another mechanism comprising a screw driven in rotation and a nut mounted on this screw, allowing thus closing or opening door and window. The presence of visible rods moving along the leaves makes this solution

dangerous and unattractive.

EP1298274 discloses a mechanism in which the axis of rotation of the leaf is provided with a pinion driven by a worm. The torque needed to open the leaf by means of a pinion on the axis of rotation is considerable.

FR2778687 discloses a device in which a motor drives a rod above the leaf. [0009] Known closure and window opening systems push the leaf, for example using pistons and / or chains. These systems are not efficient or aesthetic. In addition these systems do not allow a full opening, that is to say at 90 ° or more, the leaf. These different systems are generally bulky and difficult to integrate into a door or window. In particular, it is difficult to use them to equip an existing door or window.

The frequent presence of accessible moving parts poses security problems. It is also difficult to keep these parts clean, especially when they must be greased.

The torque necessary to drive the leaf with these mechanisms is also often important, thus requiring bulky and noisy engines, or expensive reducers.

Brief summary of the invention

An object of the present invention is to provide a device free from the limitations of known documents. Another object of the invention is to provide a device aesthetically discrete.

An object is to provide a device of small size and which can operate with a small engine. Another object of the invention is to provide a device that can be added to existing constructions, for example in the case of the equipment of a building with a home automation solution.

Another object is to better control the opening speed of the leaf. Another object is to provide a scalable device, that is to say a device that can be implemented with various electronic features according to the needs of users.

According to the invention, these objects are achieved in particular by means of a device for opening or closing a leaf with respect to a frame of a door or window, comprising a first assembly comprising a hollow cam, the first assembly being intended to be secured to either the frame or the leaf, and a second assembly intended to be secured to the leaf or the frame, the second assembly comprising:

a rotary motor,

a screw connected to the rotary motor,

a nut engaged on the screw;

a first roller secured to said nut and engaged in the hollow cam,

the rotary motor being arranged to rotate said screw on itself, and thus to move the nut in a translational movement, so that the first roller slides in said hollow cam, in order to angularly move the leaf relative to to the sleeping frame. This device has the advantage over the prior art of being bulky and therefore discreet at the aesthetic level.

It can also be implemented with any type of existing doors and windows (wood frame, PVC, aluminum, etc. This device can be integrated into a door or window during its manufacture. also be installed afterwards on an existing door or window.

The use of a hollow cam to control the angular position that takes the leaf for any linear position of the nut and the roller. It is possible to obtain an opening and closing of the leaf at controlled angular velocity along the path, for example a constant speed, without modifying the speed of rotation of the motor.

The screw is preferably a ball screw. The use of a ball screw can greatly reduce friction and thus both reduce noise and employ a less powerful engine. It is also possible to use for this purpose a metric screw, for example a screw covered with Teflon (trademark).

In one embodiment, the motor is controlled by a control mechanism comprising at least one of the following sensors: air quality sensor (temperature, humidity, pressure, CO2 level, plant allergens, etc.). ); presence and / or motion sensor;

rain sensor; anemometer; and / or timer or clock.

The device is scalable and can be adapted to the needs of customers by adding or replacing sensors, and / or programming. In one embodiment, the device comprises a synchronization module receiving information on the state of opening or closing of other leaves. It is thus possible to synchronize the opening or closing of several leaves in a building, by example in order to voluntarily create a circulation of air and aeration, or on the contrary to avoid the risk of excessive air flow if several windows are open simultaneously.

In one embodiment, several devices, for example several devices linked to different windows of the same building, are organized in a system controlled by a central control module, for example a home automation system, capable of controlling the opening respectively the closure of different leaves, so

synchronized. The central control module may be provided with at least one environmental sensor, for example air quality sensors; rain sensor; an anemometer; a clock; a timer, etc., to control the opening or closing of leaves depending on the signals provided by this or these sensors. This avoids the multiplication of sensors of different types on each leaf.

The central control module may be provided with a module for accessing meteorological data, for example data transmitted via the Internet, via DAB, DVB, WiFi, Bluetooth, radio communication, etc. for example using a portable device such as a smartphone or tablet. Access to meteorological data, such as current weather or forecast data

For example, weather can be used to determine the right time of day for the ventilation of a building.

Brief description of the figures

Examples of implementation of the invention are indicated in the description illustrated by the appended figures in which:

FIG. 1 illustrates a view of a door in the closed position equipped with a device according to one embodiment of the invention. FIG. 2A illustrates a section along a vertical plane of the device according to one embodiment of the invention.

Figure 2B illustrates a section along a vertical plane of the device according to another embodiment of the invention. Figure 3A illustrates a view of a first assembly of the device with a cam according to an embodiment of the invention.

FIG. 3B illustrates a section along a vertical plane of the device according to a second and, in superposition, according to a third embodiment of the invention. Figure 4A illustrates a perspective view of a second assembly of the device, without the rollers.

FIG. 4B illustrates a perspective view of the second assembly of the device provided with its rollers.

FIG. 4C illustrates a perspective view of a second assembly of the device, without the rollers, according to an alternative embodiment.

FIG. 5A illustrates a detail view of a door or window frame part with a door or window in a closed position, equipped with a device without the protective cover according to one embodiment of the invention. FIG. 5B illustrates a detail view of a door or window frame part with a door or window in closed position, equipped with a device with the protective cover according to one embodiment of the invention.

FIG. 5C illustrates a detail view of a part of a door or window frame with a door or window in a closed position, equipped with a device without the protective cover according to another embodiment of the invention.

FIG. 6 illustrates a view of a first assembly of the device illustrating the cam according to another variant of the invention, adapted to its integration in a leaf during its manufacture.

Example (s) of embodiment of the invention

Figure 1 illustrates a window 1 comprising a leaf 2 (or leaf) which is its mobile part and a frame 3 (or frame) which is its fixed part. As will be seen later, the invention can also be applied to doors, shutters, gates, etc. The leaf 2 is pivotally mounted on the frame 3, hinges 4 (hinges) for pivoting. These hinges 4 allow a rotation along the Y axis, for example a vertical axis in the plane of the window 1. A rotation of the leaf around another axis, including a horizontal axis, may be considered. The leaf 2 can be moved angularly between a closed position and an open position relative to the frame 3 of the window 1.

The window 1 may be devoid of any handle; it is only intended to be motor-driven or, in the event of a power failure, by means of a rod or other element allowing it to be handled directly. It is thus possible to make windows more aesthetic. A handle may however be provided in a variant, for example to harmonize the aesthetics with other non-motorized windows of the same building.

In a variant, an electronic handle 7 is provided on the leaf to open or close the window. The handle is synchronized with the motor 210 described below. This electronic handle can also control the lock respectively the unlocking

complementary to the window on the existing linkage. It can also allow manual manipulation of the leaf. Only a decorative handle can be provided, which does not open the window. It could also act as a switch to manually trigger a command to open or close the window. It could also be intended to be used in case of emergency, for example of power failure, to open or close despite the window.

The element 5 is a sensor, for example an obstacle sensor, presence or movement. Other types of sensors, for example indoor air quality sensors (temperature, humidity, pressure, CO2 level, etc.), outdoor air quality (temperature, CO2 level, plant allergens, etc.); rain ; wind (anemometer); intrusion detection; a timer or a clock, etc., can be provided.

The element 6 is a control mechanism, for example a digital electronic circuit, receiving the signals of the sensor 5 and / or switches to trigger the motorized opening or closing of the leaf, as described below. The element 6 can also receive signals from other devices fitted to other windows, or control signals from a centralized control module controlling a plurality of leaves, as will be seen below. The window 1 is equipped with a motorized opening and closing device 300 illustrated in FIGS. 1, 2A, 2B, 5A, 5B and 5C. This device comprises a set of parts 100 to the frame and a set of parts 200 linked to the leaf and including including a motor 210. As discussed below, it is possible to invert the position of these two sets and mount the set 100 on the leaf, and the whole 200 on the frame, with appropriate modifications. Each set may comprise one or more pieces.

The first assembly 100 secured to the frame 3 comprises a plate 102 of rectangular shape but which could also be of another shape, square for example, depending for example on the position of the window in the wall (with or without embrasure). This set can be made from a metal such as aluminum or steel for example, allowing a decorative eloxage. The big side of the rectangle is

perpendicular to the Y axis. The assembly 100 is advantageously fixed to the frame, in a horizontal plane P and cantilevered above the leaf on the side of the frame where the leaf can be opened. As can be seen in FIG. 3B, the position of the plate 102 can be adapted to the thickness of the frame by virtue of the screws 10 inserted into the frame and passing through oblong holes through the plate.

The plate 102 comprises a groove forming a hollow cam 104. The hollow cam 104 has a curved shape and extends in the plane P of the plate 102. In a preferred variant, its shape is defined by a spline, c that is, a function defined in pieces by polynomials. This form is custom designed to allow the

operation of the device according to the invention. This shape changes if the first set 100 is on the frame (form 104A in Figure 3A) or on the leaf (Figure 6). FIG. 3B shows two cam shapes 104A, 104B intended to be fixed on the fixed frame, in superposition

The groove 104 may be milled directly under the underside of the plate 102 as shown in Figures 3A, 3B and 5A. The hollow cam 104 is advantageously constituted by a non-through groove and is thus only visible under the lower face of the plate 102. This improves the aesthetics and limits the risk of injury. When the plate is mounted on the window, the hollow cam 104 has a concavity turned towards the frame 3. The hollow cam 104 is closed at its two ends 106 and 108 respectively.

The second set 200 of parts of the device is illustrated in particular in Figures 2, 4A, 4B, 4C, 5A, 5B and 5C. In the illustrated example, this second assembly is integral with the leaf 2.

The second assembly 200 comprises a rotary motor 210 which drives a screw 218, for example a ball screw or a Teflon-coated screw, through an optional reducer 212 mounted on the plate 206. motor can be powered at low voltage, for example with a voltage equal to 12 V or 24V. In a variant this voltage is generated by a transformer connected to the mains voltage of 230 V. The screw 218 is guided in a bearing or a ball bearing 220 formed in a plate 204, visible in Figures 4A, 4B and 4C . A grub screw (not shown) makes it possible to tighten the ball bearing in order to avoid the

loosening of all parts. The ball bearing can be replaced or assisted by a guide system with bars 219, as illustrated in the variant of FIG. 4C, and screwed into the plate 204 and / or 206.

A nut 224 is engaged on the ball screw 218 and connected to a connecting piece 214. It is also possible to combine these two elements. In this example, the connecting piece 214 is square and can not rotate in the frame. It can also be rectangular. The rotation of the ball screw 218 by means of the motor 210 thus causes the longitudinal displacement of the nut 224 and the connecting piece 214.

A first roller 216 is integral with the nut 224, for example by being mounted on the connecting piece. This roller is engaged in the hollow cam 104 described above; its position along the cam determines the opening angle of the leaf. The displacement of the roller 216 in the hollow cam 104 thus causes the angular displacement of the leaf 2 relative to the frame 3.

A second roller 217 is mounted on the same axis as the roller216 and therefore also integral with the nut 224 which it guides the displacement during the rotation of the ball screw 218. It is engaged in a rectilinear guide groove 209 visible in Figures 4A, 4B 4C formed in the mounting plate 208 and avoids the risk that the motor 210 or the ball screw 218 does not skew inside the frame. The two rollers 216, 217 are preferably free to rotate independently of one another in the same axis. They can be realized hard plastic or metal for example. In an advantageous embodiment, they each comprise a ball bearing enabling a rotation without friction in the hollow cam 104 respectively in the guide groove 209. The four metal plates 202, 204, 206, 208 form a frame which is mounted on the leaf 2 for example by means of screws 226 engaged in through holes 232, 240 through the thickness of the plates. These holes are linked to a fixing plate 250 which aims to secure the complete device and a single block to a leaf of any type of materials for example: (PVC, wood, ALU). This plate 250 includes holes specific to each type of material.

Mounting holes 234, 242 are used to fix a housing 228 forming a cover over these plates, to close the

framing. In a variant, the parts 202, 204 and 206 are machined in a single block.

The plate 206 serves as a support for the rotary motor 210 mounted outside the frame. The upper face of the frame, parallel to the leaf 2, is closed by a mounting plate 208 fixed to the plates 204 and 206 by means of screws or pins 230. The length of the mounting plate 208 is longer than that of the plate 202 and that of the ball screw 218 described below; it is thus possible to separate the fixing screws 226, and to reduce the risk of tearing the device 200.

The closed housing 228 covers all the components of the device 200 to prevent contact between a moving element and the fingers of a person for example. It allows not only to give more elegance to the mechanism but also to avoid the intrusion of foreign elements such as dust or insects. The opening of the housing 228 gives easy access to the motor 210 and the reducer 212, which are outside the frame formed by the plates 202, 204, 206 and 208. This opening gives on the other hand a more limited access to the ball screw 218 which remains protected on five sides.

The housing can be etched through one of the faces to ventilate the interior. This through engraving can be used for the design of the product, for example by representing a logo or a mark.

The control electronics 215 of the engine 210, including the motor drivers, are advantageously also protected by this housing 228, out of the frame, to facilitate access.

The width of the hollow cam 104 (104A, 104B, 104C) is preferably uniform and substantially corresponds to the diameter of the roller 216. In the variant of Figure 3A, the ends 106, 108 of the hollow cam are widened. These enlarged portions constitute stable rest positions for the roller, that is to say stable positions for the leaf; a threshold must be crossed to get out of these rest positions, requiring a greater torque than the torque necessary for other comparable displacements along the cam. Stable rest positions

additional may be provided between the two ends 106 and 108, for example to maintain a door or window in an intermediate position between the open position and the closed position. The rest positions defined by the cam 104 allow mechanical retention of the leaf 2 in a stable position without the engine must consume energy for this purpose.

When moving the window from the open position to the closed position and vice versa, the roller 216 travels a linear distance from the axis of rotation of the window Y as shown in Figure 3. As and when as the roller leaves its rest position at the end 106 to reach the other end 108 and vice versa, the roller slides in the cam 104, the window 1 then travels an angle Θ about the axis of rotation Y . In the embodiments of Figures 3, 5A and 5B, the motor is connected to the leaf 2 while the cam 104A is fixed and linked to the frame 3. This arrangement is advantageous because the side of the leaf is generally free and allows to place the motor 210 and the screw in an unoccupied space. It is however necessary to make an electrical connection to supply the electric motor to the window, for example by means of a flexible cable. To avoid this drawback, it is also possible in one embodiment to link the motor to the frame (which facilitates its wiring) and the cam to the leaf. The shape of the cam 104C (Figure 6) is adapted to this arrangement.

The shape of the hollow cam 104 determines the opening angle Θ of the window as a function of the linear position d of the nut along the ball screw 218.

The cam 104A illustrated in Figure 3A corresponds to a cam 104 connected to the fixed part of the window, that is to the frame 3. The different cam 104C illustrated in Figure 6 corresponds to on the other hand to a cam integral with the leaf 2, the motor and the worm being then linked to the frame.

The shape of the hollow cam 104 in the two modes of

realization depends in particular on the position of the Y axis of rotation of the leaf; its shape is defined by a spline that controls the opening of the leaf between the closed position and the maximum open position, even if the motor 210 rotates at a constant speed. The shape of the cam changes if the first assembly 100 is connected to the frame or the leaf (as shown in Figures 3 respectively 6).

It is also possible to provide a rotary motor 210 controlled variable speed along the race, so as to control the angular velocity and / or power throughout the leaf travel. In both directions of travel, this embodiment can therefore produce a progressive acceleration of the leaf at the beginning of its displacement, then a constant speed during almost the whole race, and a deceleration. progressive at the end of the race. It is also possible to reduce the leaf speed near the two rest positions, and thus to access or leave these two positions requiring increased torque with a reduced speed, which limits the maximum power that the engine must provide. .

The device of the invention can form a kit for equipping windows or existing doors, or be integrated in new windows or doors. In the variant illustrated in Figures 5A and 5B, the plate 102 is mounted on the frame 3 of an existing window, for example using screws 1 10 to screw against the frame 3 of the window 1. In the illustrated variant in Figure 6, the cam 104C is intended to be integrated in a leaf 2 during the manufacture of this leaf.

It is also possible to produce kits of doors or windows with a cam linked to the leaf 2 and a motor linked to the frame 3, or to make doors or windows integrating an engine related to the leaf and the manufacture a cam linked to the frame.

Limit detectors, for example inductive sensors 222 illustrated in FIG. 2 or other types of sensors may be provided in order to detect the arrival of the roller 216 at the end of the stroke and to stop the motor 210. at both ends of the hollow cam.

The motor 210 may be provided with an encoder to determine the angular position of the nut 224 at any time. This angular encoder can be absolute or relative. The limit switches 222 can be used to recalibrate the encoder when the nut reaches the end of its travel.

In case of power failure or power failure, the motor 210 can be disengaged by a manual and voluntary action of the user to have a free movement to allow closing or manual opening of the window. In a variant, a rod connected to the ball screw makes it possible, during the movement of the rod, to turn the screw ball bearings and thus to drive the opening or closing mechanism of the window.

In another variant, a backup battery near the window or in the centralized control module in the building can power the engine and the control system in case of power failure or failure.

An automatic disengagement may also be provided to automatically disconnect the motor of the ball screw when the leaf is moved manually, exerting a torque on the leaf greater than an automatic disengagement threshold. In a particular embodiment, the roller 216 of the second set of the device according to

the invention comprises two distinct parts but interconnected with fastening means such as for example and without limitation electromagnets. If accidentally a torque greater than a threshold is exerted on the vane, the two separate parts separate so that part leaves with the vane during its accidental displacement, and the other ends its race in the cam. The two parts can then be connected again when the part of the roller in the cam has completed its course. It is also possible to associate a photovoltaic panel to each window, or to a window group, to make it fully or partially autonomous network. The panel

photovoltaic can for example load a battery associated with one or more windows. The supply voltage can also be provided by a wireless electricity transmission system, that is to say by field

electromagnetic. It is thus possible to avoid the electrical connection of the leaf by means of a flexible electric cable.

The device of the invention therefore comprises a motor and a cam connected to one side of the leaf and the frame. In a mode of advantageous embodiment, the device is mounted on the upper horizontal side of the vertical axis window, to reduce the risk of contact with the user. The opposite side, for example the lower horizontal side of the window, may be provided with a locking element to keep the leaf firmly pressed against the frame in the closed position. This locking element may for example comprise an elastically deformable element, for example a clipped or spring-loaded element, in order to guarantee a stable rest position on the locked side. The locking element may comprise magnets. The locking member may also include an active element, for example an element driven by a second motor (not shown) via a suitable linkage, or using the original linkage of the window. In a preferred embodiment, the operation of the motor 210 and that of the motor used for locking will be synchronized: for example the motor used for the lock can start operating only after the motor 210 has allowed the closing of the gate on the frame.

Locks using electromagnets or piezoelectric systems placed on the side of the window opposite the device can also be implemented. These locking elements can be controlled by the control electronics of the device so as to lock the leaf against the leaf in the closed position, and allow the unlocking during opening. Servoing on a possible burglar-proof installation can also be implemented. The engagement of the engine can be controlled

automatically. For this purpose, the device may comprise a control mechanism 6 of the motor 210, for example a programmable electronic circuit, to trigger the rotation of the motor in one direction or the other. Different types of sensors 5, for example timers or clocks, sensors for temperature, rain, wind, air quality, presence or movement, can be integrated in the device and linked to this control mechanism 6 and transmit signals whose value determines a decision to open or close according to the parameters measured by one or more of these sensors. A presence or motion detector 5 could, for example, stop the movement of the window if it detects a presence (human or animal) in the volume swept by the leaf. The opening and the motorized closing of each leaf can be controlled by a user, for example by means of a user interface such as a button (ON / OFF) or a

remote control, for example a mobile device comprising a

processor executing portions of codes ("apps") allowing the opening and / or closing of the window.

Different devices in the same building can be connected to each other by a wired or wireless interface to form a control system opening / closing of several leaves in the building. This communication makes it possible, for example, to synchronize the openings and closings of different leaves, in order to control the ventilation of the building and ventilate rooms by simultaneously opening several leaves, or on the contrary to avoid excessive drafts by avoiding the simultaneous opening of some leaves. In this case, the control mechanism 6 can integrate a synchronization module with the opening of other leaves.

A centralized control module (not shown) may be provided to control multiple leaves in a building. This centralized control module can for example be integrated into a home automation system. It can receive signals from different centralized environmental sensors, eg timers or clocks, indoor air quality sensors (temperature, humidity, pressure, CO2 level, etc.), outdoor air quality (temperature, CO2, plant allergens, etc.); rain ; wind, (anemometer); fire detection, these signals being used to determine whether a leaf should be opened or closed. By centralizing certain environmental sensors at the level of the centralized control module, one avoids having to provide a sensor of each type on each window. By centralizing the control of different leaves in a building, its ventilation can be optimally controlled.

The system may also be provided with an intruder / tamper detector connected to an alarm system. It is possible to control each leaf taking into account both instructions received from the central control module and signals from local sensors - for example to ignore an order

opening a door when a local sensor, for example an infrared sensor, detects the presence of a user near the window. It is also possible to detect the presence of fingers or other parts of the body near the frame of the leaf or the frame, and to block the opening or closing of the leaf when a presence is detected, in order to avoid the risk of pinching. The detection device may for example be based on an optical fiber arranged on the leaf and / or on the frame, in places where the risk of pinching should be avoided; an electro-optical sensor detects the pressure of a finger at any point on the fiber to prevent the opening or closing of the leaf. Other body part detection systems may be provided, including systems based on capacitive electrodes, resistive, inductive sensors, heat detectors, cameras, light or infrared barriers, electromagnetic curtain around the frame leaf and / or frame for example.

To avoid the risk of pinching fingers or injury to a user by a leaf that opens or closes unexpectedly, it is also possible to provide a friction between the motor and the screw 218, for example at the gearbox 212. This friction makes it possible to limit the maximum torque transmitted to the leaf, and to stop the leaf in the event of an obstacle.

In a variant, the torque supplied by the rotary motor 210 may be determined, for example by measuring the electric current consumed. The motor driver can for example limit the torque maximum, or stop the motor 210 when the current exceeds a threshold value indicative of an obstacle, or if rapid increases in current, typical of an obstacle, are detected.

The centralized control module may also include a weather module that can receive meteorological data relating to current weather or weather forecasts. This data may for example come from a remote server, for example a web server, for example through the Internet network of a DAB or DVB channel, WiFi, Bluetooth, etc. It is thus possible to plan the ventilation of a building taking into account the current and forecast weather conditions.

The centralized control module may also include a user interface allowing a user to centrally control the opening and closing of one or more leaves. The centralized control module can also feed

electrically each motor 210 of different controlled leaves, for example by means of a transformer and, preferably, a rectifier, generating a low supply voltage. The use of low voltage limits the risk of electrocution. Centralized low voltage generation for multiple motors limits the number of transformers and rectifiers needed.

The description above relates to a window, but the device could be applied to other types of leaves, for example a door, a shutter, a gate, or any other similar element.

Mirror shapes of the cams 104A (FIG. 3A) and 104B (FIG. 3B) and 104C may be provided if the direction of opening direction of the window is reversed. Reference numbers used in the figures

Window

2 Leaf

3 Sleeping

4 Hinge

5 motion sensor

6 Control mechanism

100 First set of pieces (first piece)

102 Support plate

104 Hollow Cam (three versions: 104A, 104B, 104C)

106 First stable rest position

108 Second stable rest position

1 10 Fixing screws

200 Second set of pieces (second piece)

202 Lower plate

204 Rolling support

206 Engine support

208 Mounting plate

209 Guide groove

210 Rotary engine

212 Reducer

214 Cam nut connection piece

215 Electronics

216 First roller

217 Second roller

218 Ball screw

219 Guide bars

220 Ball bearing

222 Inductive sensor

224 Nut

226 Fasteners

228 Enclosure

230 Fixing elements

232 Through holes through the mounting plate 208

234 Through holes through the mounting plate 208

239 Screws

240 through holes through bottom plate 202

242 Through holes through bottom plate 202

300 Device

Y Axis of rotation of the window

P Plate plan 102

d Distance between the roller and the Y axis of rotation

Θ Opening angle of the window

Claims

claims

1. Device (300) for opening or closing a leaf (2) with respect to a frame (3) of a door (1) or window, comprising:

a first assembly (100) comprising a hollow cam (104A, 104B), said first assembly (100) being designed to be integral with either the frame (3) or the leaf (2), as well as

a second assembly (200) intended to be integral with either the leaf (2) or the frame (3), said second assembly (200) comprising:

a rotary motor (210),

a screw (218) connected to said motor (210),

a nut (224) engaged on the screw (218);

a first roller (216) secured to said nut and engaged in said hollow cam (104A, 104C),

said rotating motor (210) being arranged to rotate said screw (218) on itself, and thus to move in translation movement said nut (224), so that said first roller (216) slides in said hollow cam (104A, 104B, 104C), in order to angularly move the leaf (2) relative to the frame (3).

2. Device according to claim 1, said screw (218) being a ball screw.

3. Device according to one of claims 1 or 2, wherein said hollow cam (104A, 104B, 104C) extends in a plane perpendicular to the axis of rotation (Y) of the leaf,

and wherein said screw (218) is perpendicular to said axis of rotation

(Y).

4. Device (300) according to one of claims 1 to 3 wherein the first assembly (100) is intended to be secured to the frame (3),

the second assembly (200) being intended to be integral with the leaf (2), said screw (218) being mounted closer to the axis of rotation (Y) of the leaf that said rotary motor (210).

5. Device according to one of claims 1 to 4, said second assembly (200) comprising a rectilinear guide groove (209) for guiding the displacement of said nut (224) and said first roller (216) along the screw ( 218).

6. Device according to claim 5, comprising a second roller (217) engaged in the guide groove (209).

7. Device according to one of claims 1 to 6, comprising a frame (202, 204, 206, 208) housing said screw (218) and said nut (224).

8. Device according to claim 7, said rotary motor (210) being housed outside said frame (202, 204, 206, 208).

9. Device (300) according to claim 1, wherein the first assembly (100) is intended to be fixed to the leaf (2).

10. Device according to one of claims 1 to 9, said hollow cam (104A, 104B, 104C) being constituted by a blind groove.

1 1. Device according to one of claims 1 to 10, said hollow cam

(104A, 104B, 104C) being provided with one or more stable rest positions (106, 108) for stable mechanical retention of the leaf (2) without input of electrical energy.

12. Device according to one of claims 1 to 1 1, comprising an automatic disengaging system to automatically disconnect the motor (210) when the leaf is moved manually, exerting a torque on the leaf greater than an automatic disengagement threshold .

13. Door or window comprising a frame (3), a leaf (2) and a device (300) according to one of claims 1 to 12.

14. Door or window according to claim 13, further comprising a synchronization module for receiving information on the state of opening or closing of other leaves.

15. Door or window according to one of claims 13 or 14, said device (300) being mounted on one side of the leaf or the frame, a locking system of the leaf on the frame being provided on an opposite side of said leaf or said dormant.

16. System comprising a door or window according to one of claims 13 to 15, further comprising a control mechanism (6) for automatic opening and / or automatic closing of the leaf.

17. System according to claim 16, comprising at least one of the following sensors (5):

air quality sensor, comprising a temperature and / or humidity and / or pressure and / or CO2 rate sensor and / or plant allergens;

presence or motion sensor;

rain or wind sensor;

the signals of said one or more sensors being transmitted to said control mechanism (6).

18. System according to one of claims 16 or 17, comprising a presence sensor for detecting the presence of a human body portion near the leaf or the frame, the control mechanism being arranged to prevent the movement of the leaf when such presence is detected.

19. System according to one of claims 16 to 18, comprising a plurality of doors or windows according to one of claims 13 to 15 and a centralized control module for centrally controlling the opening or closing of different doors or windows.

20. The system of claim 19, said centralized control module being arranged to synchronize the opening and / or closing of different leaves so as to control the ventilation of a building.

21. System according to one of claims 19 to 20, said centralized control module being provided with a weather module for receiving weather forecasts and to control the opening and closing of leaves according to these forecasts.

22. System according to one of claims 19 to 21, said centralized control module being provided with a power supply system electrically power supply said motors (210) of different leaves (2).