BE1026220A1 - Tilt-and-turn window with motorized and manual opening - Google Patents

Abstract

The invention relates to a device for motorized opening and closing bellows of a window (200) tilt and turn closing an opening plane and comprising an opening (220) and a frame (210), which device comprises: at. a rigid chain jack (301), installed in the frame of the frame (210) and able to produce a thrust and a traction in a direction perpendicular to the plane of the opening; b. a disconnectable coupling assembly comprising a coupling member (511) fixed to the end of the chain of the chain cylinder and a coupling member (521) integral with the opening, able to cooperate; c. characterized in that it comprises a mechanism for moving the coupling member secured to the opening, parallel to the opening plane, and making the connection or disconnection of the opening with the rigid chain cylinder.

Description

The invention relates to a tilt-and-turn window with motorized and manual opening. Such a window, or window door, is able to be opened and closed according to a so-called French opening, around a vertical pivot axis, or according to a so-called bellows opening, along a horizontal pivot axis. The bellows opening is advantageously used to provide ventilation of a room while preventing access to said premises. The transition from one mode of opening to another, in manual mode, is achieved by the maneuvering of the handle of the window. The window object of the invention has the advantage of being able to further be opened and closed in a motorized manner according to the bellows opening mode.

The motorization of an opening, window or door window, generally poses the problem of integrating the motorization means. Advantageously, these motorization means are integrated in the frame of the opening and / or the frame so as to avoid significant installation work on the structure of the openings of the building. However, in this case, the difficulty lies in keeping frames of reduced thickness and width so as to maintain a large glass surface and not have unsightly projections inside or outside the building . The largest dimensions of the profiles constituting the frames are in the plane of the opening or in a plane parallel thereto. By against the action, push-pull, necessary for the realization of the opening and closing is generally directed in a normal direction to this plan, hence the difficulty of integrating the motorization means retaining the chassis thickness. To this end, the motorization systems generally use mechanisms using a compass deployed by a system of articulated rods for the opening, which compass has a small footprint in non-deployed mode. The compass mechanism is deployed and retracted by acting on one of its ends by a displacement parallel to the greatest length of the section in which the drive means are installed, for example by means of a visécrou system. DE 10 2007 007 997 describes such a compass mechanism.

These compass systems have disadvantages. First, the proportionality between the displacement of the end displaced by the motor and the displacement of the end connected to the opening is variable during the opening-closing movement. So, starting from the closed window, a small displacement

BE2019 / 5225 from the end of the compass on the engine side, produces a large displacement on the opening side. FIG. 1 shows an example of an evolution of the ratio (102) between the displacement of the opening and that of the displacement of the end of the compass displaced by the motor, as a function of the displacement of the end connected to the motor (101 ) for a mechanism such as that disclosed in DE 10 2007 007 997. The unfavorable leverage multiplies the forces on the joints, rods and the motor which must be dimensioned accordingly. For example, the effort required for the compression of the seals during the application of the opening on the frame when closing, while the rods of the compass are almost aligned, results in an effort more than 10 times higher at the end of the compass moved by the engine, which implies that the engine is able to produce a significant static torque. Under the effect of these efforts the system is likely to wear out and take the game, the connection between the end of the compass and the opening is necessarily a pivot connection whose axis is substantially parallel to the plane of the surface glazed opening and which intervenes by pushing the opening when opening and pulling the opening when closing. When the maneuvering of the window must be able to be carried out both manually and motorized, it is necessary to provide a mechanism for uncoupling of this link in manual operation mode and coupling of this connection in motorized mode. However, the achievement of a pivotable connection disconnectable and able to work by pushing and pulling according to a reliable mechanism over time is not easy, it requires moving parts and recall and locking systems which are all sources potential for malfunction. Finally the compass technology limits the opening achievable by the same size of the compass.

The invention aims to solve these drawbacks and concerns for this purpose a device for opening and closing motorized bellows of an oscillating window closing an opening plane and comprising an opening and a frame, which device comprises:

at. a rigid chain jack, installed in the frame of the frame and able to produce a thrust and traction in a direction perpendicular to the plane of the opening;

b. a disconnectable coupling assembly comprising an

BE2019 / 5225 attached to the end of the chain of the chain cylinder and a coupling member secured to the opening, able to cooperate

c. a mechanism for moving the coupling member integral with the opening, parallel to the opening plane, and making the connection or disconnection of the opening with the rigid chain cylinder.

Thus, the chain cylinder makes it possible to apply the opening-closing force directly to the sash without lever effect and with a constant proportionality between the movement of the engine of the jack and the movement of the sash. The system of connection-disconnection of the chain cylinder with the opening makes it possible to pass from a manual opening-closing mode, the system being uncoupled, to a motorized opening-closing mode, the system being coupled. This coupling system is simple, without additional moving parts, thus making the coupling device more compact and more reliable. In situations where the force to be applied to the opening is the most important, for example when closing the window in high wind or the compression of the joints at the end of the race, the chain acts in tension on the opening which corresponds to the most favorable operating conditions of a chain cylinder, thus making it possible to optimize the choice of said motor for a smaller footprint and a larger glazed area. According to this embodiment the window comprises a locking device of the opening in the frame independent of the motor coupling and opening-closing device.

The invention is advantageously implemented according to the embodiments and variants described below, which are to be considered individually or in any technically operative combination.

Advantageously, the integral coupling member of the opening is fixed to a sliding fitting in the frame of the opening, and the device comprises:

d. locking means of the opening in the closed position comprising a bolt and a latch one of the bolt or striker being connected to the sliding fitting and moving with it;

e. a maneuvering pin attached to the sliding hardware;

f. a maneuvering fork secured to the frame and acting on the maneuvering pin when the window is in the closed position and of which

BE2019 / 5225 the opening is perpendicular to the direction of movement of the opening during the opening-closing bellows;

g. means comprising a locking motor, installed in the frame of the frame, for translational movement of the sliding fitting of a stroke length /;

I the length race l of the sliding fitting from the closed and locked position of the window, connecting the coupling members of the chain and those integral with the opening, while moving the bolt away from the striker, so that to allow the opening of the window.

Thus, the coupling means of the chain motor and the opening of the locking means cooperate during the opening and closing cycles. The connection of the opening with the motorized means, as well as the locking of the opening in the frame are made by the same means, which simplifies the mechanism by limiting the linkages and moving parts. The orientation of the opening of the maneuvering fork allows the maneuvering peg to escape from it when opening the sash and to insert it again into it when closing the sill. 'opening.

According to an advantageous embodiment, the maneuvering peg having a diameter d, the means for moving the maneuvering fork have a stroke capacity at least equal to 1 and the opening of the maneuvering fork is at least equal to + d. This embodiment saves a disengagement system at the drive motor of the operating fork.

Advantageously, the opening of the maneuvering fork comprises an inlet opening of at least equal length (l + d) centered with respect to an oblong opening of length at least equal to l + 2d, in this case the running capacity. Minimum locking motor is equal to the width of the inlet opening. This embodiment makes it possible to maintain the compression of the seals between the sash and the frame during the locking and unlocking maneuvers of the sash.

BE2019 / 5225

According to one embodiment, the coupling members comprise a coupling pin and a gripping fork, one of the coupling pin or the gripping fork being fastened to the end of the chain of the rigid-link cylinder and the other being secured to the opening, the opening of the gripping fork 5 being oriented to allow the introduction of the pin in said fork by a translation in a direction substantially parallel to the largest dimension of the profile of the frame in which the lock motor is installed. This embodiment uses simple members (pin and fork) to produce the coupling of the chain cylinder with the opening in a translation movement.

According to a variant of this embodiment, the coupling pin is connected to the sliding fitting and the gripping fork is connected to the chain of the chain cylinder.

According to another variant of this embodiment, the coupling pin is linked to the chain of the chain cylinder and the gripping fork is connected to the sliding fitting.

These two alternative embodiments make it possible to perform the functions of the device that is the subject of the invention, the second variant makes it possible to better guide the end of the chain in its movements when it is not secured to the gripping fork.

Thus, according to this second alternative embodiment, the device according to the invention comprises a rectilinear guide means of the coupling pin in its movements not connected to the gripping fork.

Advantageously, the connecting pin is made of a ferromagnetic material, the gripping fork consists of a non-magnetic material and the gripping fork comprises a permanent magnet for holding the connection pin in said gripping fork. Thus, maintaining the connection pin in the gripping fork is improved, especially when the chain is deployed in the presence of wind.

The invention also relates to a method for the motorized opening in bellows of a tilt-and-turn window implementing the device of the invention according to any of its modes or variant embodiment, and comprising, starting from a locked and closed configuration of the window the steps

BE2019 / 5225 consisting of:

i. moving the end of the chain by means of the chain cylinder to align the coupling member of the chain with the coupling member of the opening;

ii. moving the sliding fitting by means of the locking motor and the operating fork so as to connect the coupling members of the chain and the opening by releasing the locking means;

iü. deploying the chain by means of the chain cylinder so as to move the opening in a bellows opening mode;

iv. retract the chain so as to close the opening;

v. when the opening is closed, move in the opposite direction of step ii) the sliding fitting so as to disconnect the coupling members and to lock the opening in the closed position;

vi. retracting the chain until the coupling members of the chain are out of the way of the coupling means of the opening on the sliding fitting.

Thus, in the locked closed position of the opening, the chain is not connected to the opening, preserving the possibility of manual opening thereof in bellows or French.

Advantageously, the method which is the subject of the invention implements the device forming the subject of the invention according to one of these embodiments in which the operating range comprises an opening of width at least equal to (1 + d) and comprises between the steps ii) and iü) and between steps v) and vi) a step of:

vi. move the gripper fork in the opposite direction of the previous step of a stroke equal to the locking stroke without causing the range of maneuver

Thus, the combination of the method and the device which is the subject of the invention makes it possible, by means of a simplified device, to always obtain the opening leaf in a configuration allowing manual or motorized opening when it is locked.

The invention is explained below according to its preferred embodiments,

BE2019 / 5225 in no way limiting, andwith reference to FIGS. 1 to 10, in which:

FIG. 1 relating to the prior art shows the evolution of the displacement ratio at the ends of a compass;

- Figure 2 shows in a perspective view an embodiment of a window 5 implementing the device object of the invention;

- Figure 3 shows the window of Figure 2, in partial view and without the upper rail profile of the frame;

- Figure 4 shows in perspective view an embodiment of the chain of a rigid chain cylinder;

FIG. 5 diagrammatically shows in a view from above the operation of the device according to one embodiment of the invention;

- Figure 6 shows schematically in top view the operation of the device object of the invention according to another embodiment;

FIG. 7 is a top view of an exemplary embodiment of the maneuvering fork of the device which is the subject of the invention;

- Figure 8 shows in perspective view an embodiment of the device shown schematically in Figure 6;

FIG. 9 is a view from below of an exemplary embodiment of the device that is the subject of the invention;

and FIG. 10 is a flow diagram of an exemplary embodiment of the method that is the subject of the invention.

Figure 2, the device of the invention is adapted to a window (200) or a window door obscuring an opening in a building, according to an opening plane parallel to the glass surface (230). The window includes a frame (210) fixed to the building structure and an opening frame (220) supporting the glazed surface.

The frames of the opening and the frame, of quadrangular form, are made of hollow profiles in alloy of aluminum, PVC, wood or a combination of these materials. The window has seals between the opening and the frame, seals which are compressed when the door is closed. The device according to the invention is adaptable to an oscillating window whose opening is achieved by the pivoting of the opening (220) relative to the frame (210) around a horizontal axis (201), or to a window tilt and turn, whose opening is achieved either by pivoting

BE2019 / 5225 opening it around a horizontal axis (201) or around a vertical axis (202) relative to the frame. The window is opened and closed manually by means of a handle (240). According to an exemplary implementation in the case of a tilt-and-turn window, starting from the locked closed position of the window as shown, a rotation (241) of 90 ° of the handle (240) allows unlocking opening it and opening it in a bellows opening by pivoting it around a horizontal axis (201). A rotation of 180 ° (242) of the handle (240) allows to unlock the opening and to open the French by pivoting it around a vertical axis (202).

The device according to the invention makes it possible to motorize the opening and closing of the bellows opening, while preserving the possibility of manual opening and closing of the opening at least in bellows, and advantageously in bellows and at the French. The bellows opening or closing of the window, essentially for the purpose of ventilating the room comprising said window, is thus triggered remotely by a switch, a remote control or an automated climate control unit, possibly controlling several windows of the room. .

3, to this end, according to an exemplary embodiment, the window comprises a motor assembly (300) housed in the upper cross member profile of the frame The motor assembly comprises a rigid chain cylinder and a so-called locking motor 20 able to move an element in translation.

Figure 4, a rigid chain cylinder comprises a chain (400) whose links are provided with means, such as plates (401), to keep the links aligned with each other. The chain is driven by a pinion (not shown). It is contained in the cylinder in a configuration zig25 zag reduced size, and is guided in an outlet port. At the passage of this orifice, the plates (401) and the links are aligned and locked together, so that the chain is adapted to be biased in compression while remaining aligned, and is thus able to transmit a thrust force, and of course traction. Due to the locking of the links between them, the chain also has a certain rigidity vis-à-vis the transversal sel licitations.

The chain being folded into the jack, such a cylinder allows, with a small footprint, to obtain a significant displacement, which is useful for i

BE2019 / 5225 for example, requiring a large bellows opening. Throughout this important movement, the displacement of the opening is directly proportional to the movement of the motor, which allows fine adjustment of the intended movement of the opening and simplifies the electronic control card 5 engine.

The transmissive forces of the chain in tension and compression, as well as the admissible transversal forces, depend on the locking technology used. For a chain cylinder reduced size as in the case of the invention, the capacity is important in traction, less important in compression 10 and lower vis-à-vis the lateral stresses. Also, it is desirable that the deployed part of the chain is kept online to take advantage of the maximum capacities.

5, according to an exemplary embodiment of the device according to the invention, the end of the chain (400) comprises a connection member in the form of a pin (511) and the opening comprises a sliding fitting ( 520) supporting a connecting member in the form of a fork (521) for gripping. The connecting pin (511) extends in the vertical direction, in the negative z direction according to the figure, the opening of the gripping fork (521) is oriented so as to capture the connection pin (511) by a shift in the direction of the positive x's.

According to an alternative variant (not shown), the connecting member attached to the end of the chain is a fork and the connecting member attached to the sliding fitting (520) is a pin, the opening of the fork being oriented so as to allow the introduction of the pin therein according to a displacement in the direction of the positive x of said sliding fitting. The device comprises a chain jack (301) and a locking motor (302) adapted to move a maneuvering fork (512) in a translation parallel to the opening plane (x, z) of the window. These motors (301, 302) are placed in the upper cross member of the frame (210). According to variants, the locking motor (302) is also a chain cylinder acting in the long direction (x) of the profile of the frame. frame, or a geared motor acting on a rack or pinion assembly or visécrou. The sliding fitting (520) is guided in translation in the profile of

BE2019 / 5225 upper cross member of the opening. It comprises an actuating pin (522) which cooperates with the operating fork (512) to effect the displacement of said fitting (520) when the window is in the closed position and the upper rail sections of the opening and the frame are vis-à-vis. According to this embodiment, the maneuvering fork has an opening substantially equal to the diameter of the maneuvering pin. Also this embodiment is more suitable for a working window exclusively bellows automatically or manually. According to this embodiment, a locking device of the opening in the frame includes a keeper (513) connected to the frame and a bolt (523) connected to the sliding fitting and moving with it. Thus, the same device performs both the connection-disconnection of the chain cylinder with the sliding hardware and the locking of the opening in the frame. The sliding hardware is also connected to the handle of the window by a linkage (no shown) so that the rotation of this handle also translates said bracket. The figure

5A shows the configuration of the device just before a motorized opening bellows of the window. In the instant preceding this configuration, the operating fork (512) pushed, in the direction of the positive x, the sliding fitting (520) which has the effect of separating the bolt (523) from the striker (513) and unlocking the opening, at the same time as capturing the connection pin (511) of the chain by the gripping fork (521). The opening is connected to the end of the chain (400) and unlocked, the actuation of the chain cylinder causes the exit of the chain (400), in the direction of y negative, and the opening bellows of the 'opening.

Figure 5B, the opening having been closed by the chain cylinder, the upper rail profiles of the opening and the frame are again vis-à-vis. The locking motor (302) is actuated so as to produce, by means of the operating fork (512), a displacement in the direction of the negative x in a lengthwise stroke of the sliding fitting (520). which has the effect of introducing the bolt (523) in the striker (513) and lock the opening in the frame. During this same locking translation, the gripping fork (521) releases the connecting pin (511) from the chain. The chain (400) is then retracted into the chain cylinder, in the positive y sense, so as to move away

BE2019 / 5225 the alignment connection pin with the gripping fork. The window is then closed and locked and possibly maneuverable manually.

5C, starting from the closed and locked position of the opening, a maneuvering of the handle of the window, for a bellows opening or a French opening, causes, via the linkage, a displacement sliding fitting according to the positive x of a stroke of length. With the chain retracted, the gripping fitting (521) does not catch the connection pin during this stroke, but the bolt (523) is separated from the striker (513), the opening is unlocked, the opening of the maneuvering fork, oriented along the y-axis, does not oppose the exit of the maneuvering pin from said maneuvering fork and the window is manually open. This technical solution limits the stroke capacity of the lock motor (302) to the length /. However, in order to be able to maneuver the handle and move the sliding fitting (520) while the maneuvering pin (522) and the maneuvering fork (512) are engaged, it is necessary that the connection between the maneuvering fork and the locking motor (302) is disengaged and therefore disengageable. There are many technical solutions for this purpose, which can be integrated in a geared motor group, however, it complicates the mechanism. In addition, to allow opening to the French it is necessary that the clearance between the maneuvering fork and the maneuvering pin is sufficient to accommodate the circular trajectory, albeit very short, the maneuvering pin in the maneuvering fork when of this type of opening.

The embodiment of Figure 6 overcomes these disadvantages. According to this embodiment, the maneuvering fork (612) has an opening of width at least equal to Z + <7, d being the diameter of the maneuvering pin (522) and the length of the travel of the sliding fitting ( 520) to effect the unlocking lock of the opening as well as the capture and release of the connecting pin (511) by the gripping fork (521). The gripping fork as schematically shown is a simple fork, Figure 7 shows an improved embodiment of the gripping fork.

Figure 6A the window is closed and locked. The connecting pin (511) is retracted so that it is no longer aligned with the gripping fork (521),

BE2019 / 5225 the bolt (523) and the striker (513) are engaged one inside the other, the gripping fork (612) is positioned so that the maneuvering peg (522) is in contact with the fork on the negative x side. From this configuration, it is possible, after unlocking to open the window either manually, bellows 5 or French, or bellows motorized way.

Figure 6B, for a manual opening of the window, bellows or French, the maneuvering of the handle of the window causes via the linkage a displacement in the direction of the positive x of the sliding fitting (520) according to a run of length Z. The maneuvering pin being in contact with the opening of the maneuvering fork on the negative x side, nothing prevents this displacement of the sliding fitting. The connecting pin (511) being retracted, this translation of the sliding fitting, does not cause the capture of said pin by the gripping fork. The movement of the sliding fitting disengages the bolt (523) from the striker (513), thus unlocking the opening, which opens freely in the bellows or the French.

6C, to achieve a motorized opening bellows of the window, starting from the closed and locked configuration as shown in FIG 6A, the chain is first moved in the direction of the negative y, so as to align the connection pin (511) with the opening of the gripping fork (521). Then, by means of the locking motor (602) the operating fork (612) is moved along the positive x of a stroke of length l, This travel disengages the bolt (523) of the striker (513) causing the unlocking of the opening, at the same time that it achieves the capture of the connection pin (511) by the gripping fork (521). Then the chain is deployed to cause the opening bellows 25 of the opening. According to one embodiment, parallel to the start of motorized opening, the operating fork is moved a length l in the direction of the x negative so as to anticipate the locking operations when the opening is closed.

Figure 6D, starting from the previous configuration, the opening is opened and then closed by the motorized means. Following the motorized closure of the opening, the

BE2019 / 5225 upper cross members of the sash and the frame are in facing relation, the maneuvering peg (522) is reintroduced into the opening of the maneuvering fork (612). The maneuvering fork is driven in a race of length l in the negative X, which has the effect of engaging the bolt (513) in the striker (523) and 5 lock the opening, at the same time as release the connection pin (511) of the gripping fork (521).

6E, starting from the configuration of FIG. 6D, the chain is retracted in the positive y direction so as to move the connection pin (511) away from the alignment with the gripping fork (521). The locking motor 10 moves the operating fork (612) by a length l along the positive x so as to replace the maneuvering pin in contact with the opening of the maneuvering fork on the negative x side. This movement of the operating fork does not cause displacement of the sliding fitting, the bolt and the keeper remain engaged one inside the other. At the end of these maneuvers, the device returns to the configuration of FIG. 6A, and the maneuvering pin is positioned in the maneuvering fork so as to allow movement of the slide fitting in the direction of the positive xes to realize manual unlocking

It is of course possible to use a maneuvering fork having an opening width greater than l + d to obtain a similar result. In this case, the stroke capacity of the locking motor must be greater. Thus, according to a particular embodiment, the opening of the maneuvering fork is equal to 2l + d, for a simple range. In this case the stroke capacity of the locking motor is at least equal to 21. The corresponding configurations of the operating fork are shown in dashed lines in FIGS. 6A to 6E. Such a configuration is, for example, used in the case where the sliding fitting is moved with a positive X-axis travel in order to unlock and allow manual opening in the bellows, and an additional stroke of length Z , a total race of 21, to allow manual opening French. In such a configuration, after the locking maneuver following the motorized closure, the maneuvering fork is advantageously displaced.

BE2019 / 5225 in the opposite direction to the previous movement (unlocking and locking stroke) so that the maneuvering pin is placed in close contact with the operating fork on the negative x side and allows manual unlocking movements.

FIG. 7, according to an example embodiment, the opening of the operating fork (712) comprises an inlet opening of width (701) at least equal to 1 + d, where l is the travel necessary for the disengagement of the locking means of opening it in the frame, and d the diameter of the maneuvering pin, and an oblong opening width (702) at least equal to 1 + 2d, the stroke capacity 10 of the motor being at least equal to 1 + 2d. Figure 7 dotted the position of the maneuvering pin (522) in the opening of the operating fork in the closed and locked configuration of the opening.

In the embodiment where the manual opening of the window in a French mode is achieved by an additional displacement of the sliding fitting of a length l in the direction of the positive x opposite the unlocking stroke of the manual bellows opening mode, the opening of opening (701) of maneuvering fork according to this embodiment is at least equal to 21. In this case the minimum driving capacity of the engine is 2l + d, and the width (702) of the oblong opening is 2l + d.

The cylindrical ends of the oblong groove make it possible to keep the maneuvering pin in the y direction when the sliding fitting is moved, to lock or unlock the sash, and thus to preserve the compression of the seals between the sash and the frame during of these displacements. These provisions promote precise alignment of the strike and the bolt as well as the maneuvering peg and the gripping fork.

8, the gripping fork (521) advantageously comprises a permanent magnet (821) placed near the bottom of said fork in order to keep the connecting pin (511) at the bottom of the gripping fork during deployment and retraction. of the chain during the opening and closing operations of the opening. For this purpose, the gripping fork consists of a

BE2019 / 5225 non-magnetic material and transparent to the magnetic field generated by the magnet (821), and the connecting pin (511) is made of a ferromagnetic material. This magnet contributes to keeping the chain in line when opening or closing the sash, and prevents it from being ejected from the fork, especially in the presence of wind. The magnet (812) is selected so that the force exerted by the gripping fork (712) on the sliding fitting is sufficient to move the gripper fork away from the connecting pin despite the magnetic holding force. The connecting pin (511) is advantageously diabolo-shaped so that it is held in the gripping fork also in the vertical direction (z).

Figure 9, to ensure that the chain of the chain cylinder remains in line, a guide means (910) of the connecting pin is installed in the frame. The device is here represented in the configuration of FIG. 6D, seen from below, without the string to clarify the figure. The guiding device (910) guides the connection pin (511) in the y-direction by means of a groove (911) of width equal to the diameter of the connecting pin, in its displacements when it is not not connected to the gripping fork that is to say in its withdrawal movement after locking the frame, or in its movement for its alignment with the gripping fork.

The sequences and the displacement values of the chain cylinder and the locking motor are controlled by an electronic card, implementing the method that is the subject of the invention. Thus, Figure 10, starting from the locked closed position of the window, according to a first control step (1010) the device receives a bellows opening order. Upon receipt of this order, according to an alignment step (1020), the chain cylinder is actuated to bring the connecting pin in alignment with the gripping fork. The connecting pin and the gripping fork being aligned, according to an unlocking step (1030), the locking motor is actuated to move the sliding fitting by means of the maneuvering fork, a stroke of length l so as to separate the bolt from the strike and capture the connecting pin with the gripping fork.

Advantageously, according to a repositioning step (1040), the fitter

BE2019 / 5225 lock is operated in such a way as to move the operating fork in the opposite direction and to reposition the pin in the opening of the operating fork so as to allow the bellows opening of the opening. For example, in the case of the use of a fork as shown in FIG. 7, at the end of the unlocking step, the maneuvering peg is caught in the cylindrical portion of the oblong groove on the x-side. negative. To allow opening bellows of the opening, the operating fork is moved during the repositioning step (1040) by a distance at least equal to d / 2.

According to an opening step (1050) the chain cylinder is actuated so as to move the opening to the desired opening.

Advantageously, during the opening step (1050) the repositioning step (1040) is continued to move the operating fork of an additional length, 1 or 21 according to the configuration, in the direction of the x negative with respect to its position at the end of the unlocking step (1030), so as to anticipate a portion of the movements made during the locking step involved during a subsequent motorized closing operation of the window.

In a second control step (1060) the system receives a close command. According to a closing step (1070), the chain cylinder is actuated so as to retract the chain and bring the opening of the frame The opening being in contact with the frame and the seals compressed under the action of the chain, according to a step (1080) of locking, the sliding fitting is moved so as to release the connection pin and to engage the bolt in the striker. In practice, when using a fork as shown in FIG. 7, this locking step takes place in two sub-steps:

- T'ouvrant being closed, the maneuvering pin being substantially in the middle of the opening of the operating fork, the compression of the seals is ensured by the traction exerted by the chain cylinder on the opening, the The operating fork is moved until the maneuvering pin is caught in the cylindrical end of the oblong opening of the fork. This maneuver does not move the sliding hardware.

- The maneuvering pin being held in the maneuvering fork, the effort

BE2019 / 5225 produced by the chain cylinder is released without any movement of the chain, and the continuation of the travel of the operating fork causes the movement of the sliding fitting which locks the frame and disconnects the gripping fork and the maneuvering pawn. The chain no longer exerting tension, the connecting pin is easily extracted from the gripping fork.

According to a step (1090) the chain of the chain cylinder is retracted to release the connection pin from the alignment with the connection fork. Finally, a repositioning step (1040) makes it possible to reposition the maneuvering pin 10 in the opening of the maneuvering fork, by moving the maneuvering fork in the direction of the positive xes in order to allow the movements of the sliding fitting to manual unlocking operations. In the case of a fork such as that of FIG. 7, this repositioning displacement is equal to the total unlocking travel, ie Z, if the unlocking by means of the mechanism which is the subject of the invention concerns only the opening bellows, or 21, if an additional displacement is made for the French opening.

The above description and the exemplary embodiments, show that the invention achieves the intended purpose, and allows the motorization of a tilt-and-turn window vis-à-vis its bellows opening by simple and reliable means retaining the 20 possibilities of manual opening and closing. The system in principle is usable for a motorized opening bellows associated with a manual opening bellows, and, if necessary, a manual opening to the French, using a locking system controlled by the same device or independently of this device. Thus the system object of the invention is adapted the motorization of any type of oscillating window or tilt-and-turn, in first installation or renovation.

Claims (10)

1. Device for the motorized opening and closing in bellows of a tilt-and-turn window (200) closing an opening plane and comprising an opening (220) and a frame (210), which device comprises: at. a rigid chain cylinder (301), installed in the frame of the frame (210) and capable of producing thrust and traction in a direction perpendicular to the plane of the opening; b. a disconnectable coupling assembly comprising a coupling member (511) fixed to the end of the chain of the chain jack and a coupling member (521) integral with the leaf, capable of cooperating; vs. characterized in that it includes a mechanism for moving the coupling member integral with the opening, parallel to the opening plane, and for connecting or disconnecting the opening with the rigid chain actuator. 2. Device according to claim 1, in which the coupling member integral with the opening element is fixed to a sliding fitting (520) in the frame of the opening element, and the device comprises: d. means for locking the opening in the closed position comprising a bolt (523) and a strike (513), one of the bolt or strike being connected to the sliding fitting (520) and moving therewith; e. an operating pin (522) fixed to the sliding fitting (520); f. a maneuvering fork (512, 612, 613, 712) integral with the frame (220) and acting on the maneuvering pin (521) when the window is in the closed position and whose opening is perpendicular to the direction of movement of the 'opening during the opening-closing bellows; g. means comprising a locking motor (302,602), BE2019 / 5225 installed in the frame of the frame, to move in sliding the sliding fitting of a stroke of length l; I the length stroke l of the sliding fitting (520) starting from the closed and locked position of the window, connecting the members 3. Device according to claim 2, in which the maneuvering pin (521) having a diameter d _t the means for moving the 10 maneuvering fork have a stroke capacity at least equal to Z and the opening of the maneuvering fork is at least equal to \ d. 4. Device according to claim 3, wherein the maneuvering fork (712) comprises a length entry opening at 15 less equal (Z + cZ) centered with respect to an oblong opening of length at least equal l -'- ~ 2d, the minimum stroke capacity of the locking motor being equal to the width of the inlet opening. 11. The method of claim 10 using a device according to claim 3, comprising between steps ii) and iii) and between steps v) and vi) a repositioning step (1040) consisting of: vi. move the gripping fork in the opposite direction to the previous step by a stroke equal to the locking stroke without 5 (521) is linked to the sliding fitting (520). 5. Device according to claim 2, in which the coupling members comprise a coupling pin (511) and a 20 gripping fork (521), one of the coupling pin or the gripping fork being fixed to the end of the chain (400) of the rigid chain jack and the other being secured to the opening, (210) the opening of the gripping fork (521) being oriented to allow the introduction of the pin into said fork by a 25 translation in a direction substantially parallel to the largest dimension of the frame profile in which the locking motor (302, 602) is installed. 5 for coupling the chain and secured to the sash, while moving the latch away from the strike, so as to unlock the sash and allow the window to be opened. 6. Device according to claim 5, in which the coupling pin BE2019 / 5225 is linked to the sliding fitting (520) and the gripping fork (521) is linked to the chain of the chain jack. 7. Device according to claim 5, in which the coupling pin is linked to the chain (400) of the chain jack and the gripping fork 8. Device according to claim 7, comprising a rectilinear guide means (911) of the coupling pin in its displacements not connected to the gripping fork. 9. Device according to claim 7, in which the connection pin is 10 made of ferromagnetic material, the grip fork is made of a non-magnetic material and comprises a permanent magnet (821) for holding the connection pin (511) in the grip fork. (521) 10. Method for the motorized opening in a bellows of an oscillating window 15 casement using a device according to claim 2, and comprising, starting from a locked and closed configuration of the window, the steps consisting in: I. move (1020) the end of the chain by means of the chain jack to align the coupling element of the chain with the coupling element of the leaf; ii. moving (1030) the sliding fitting by means of the locking motor and the operating fork so as to connect the coupling members of the chain and of the opening, releasing the locking means; iii. deploying (1050) the chain by means of the chain jack so as to move the opening element in a bellows opening mode; iv. retract (1070) the chain so as to close the opening; V. when the door is closed, move in the opposite direction to step ii) the sliding fitting (1080) so as to disconnect the coupling members and lock the door in position BE2019 / 5225 closed; vi. retract (1090) the chain until the chain coupling members are outside the travel of the coupling means of the leaf on the sliding fitting. 10 drive the operating fork.