EP2799647A1 - Motorised device for locking/unlocking an openable body section, in particular a window - Google Patents

Abstract

This device comprises: a strike (18) and a bolt (26) movable between an unlocked position and a locked position, - a motor (36) and transmission means for moving the bolt (26) from its unlocked position to its locked position and vice versa, the transmission means comprising: - a control rod (20) carrying the bolt (26) and a control pin (28), - a drive arm (24) having two longitudinal edges (54, 56), driven in translation by the motor (36) and further comprising an oblong hole (58) longitudinally open on one side so as to open into an edge longitudinal (56) of the driving arm (24), the opening (60) thus formed forming with the oblong hole (58) a double hook, each of the hooks being intended to accommodate the control pin (28).

Description

The present invention relates to a motorized device for locking / unlocking an opening, in particular a window leaf.

Typically, a building has openings that allow access to the interior of the building: it is doors or the like. Other openings are also planned to allow daylight to illuminate the interior of the building and / or to ventilate the building: it is then windows. In one case as in the other, it is generally intended to provide the opening made of a frame on which is pivotally mounted an opening formed by the door or window.

A locking device is provided to maintain the opening in the closed position on the frame. Most commonly, an opening lock device on a frame includes a latch cooperating with a bolt. The strike is mounted on the opening and the bolt on the frame or vice versa. Control means, for example comprising a control handle and a cremone rod for transmitting the movement of the handle to the bolt, make it possible to move the bolt with respect to the striker to bring it from an unlocked position to a locked position , Or vice versa.

To facilitate the control of the locking device, it is known to motorize this device. A motor then acts on the bolt to make a relative movement between it and the striker. The document FR-2 981 109 discloses a motorized locking and unlocking device. The device disclosed in this document provides for the use of a rotary electric actuator disposed inside a profile of the opening and connected thereto. A connection of screw-nut type is disposed inside a section of the opening and transforms the rotary movement of the electric actuator into a translational movement of the striker or corresponding latch associated with this opening. Control means of the electric actuator is further provided.

This document of the prior art does not provide for manually operating the locking device.

The object of the present invention is to provide a motorized locking (and unlocking) device for an opening pivotally mounted in a frame, in particular a striking door, which can also be operated manually.

Advantageously, the device will allow manual intervention in as many situations as possible.

The object of the invention is also to have an opening whose maneuver is ergonomic. A user must advantageously be able to open or close the opening at will, with the help of the engine or not. It is even desired that a user not knowing that the locking of the leaf is motorized can naturally (manually) act on this leaf.

The proposed device will preferably also be simple to implement during the construction of the assembly formed by the frame and the opening. Its cost price will be advantageously limited.

In addition, the proposed device will preferably be reliable and a long life with advantageously a minimum of maintenance.

• une pièce fixe et une pièce mobile entre une position déverrouillée éloignée de la pièce fixe autorisant une ouverture de l'ouvrant par rapport au dormant et une position verrouillée dans laquelle la pièce mobile coopère avec la pièce fixe pour maintenir l'ouvrant en position fermée dans le dormant,
• un moteur et des moyens de transmission permettant de déplacer la pièce mobile de sa position déverrouillée pour l'amener dans sa position verrouillée et inversement.

To this end, the present invention proposes a motorized locking device for an opening in a frame comprising:

• a fixed part and a moving part between an unlocked position remote from the fixed part allowing an opening of the opening relative to the frame and a locked position in which the movable part cooperates with the fixed part to maintain the opening in the closed position in the sleeper,
• a motor and transmission means for moving the movable part from its unlocked position to bring it into its locked position and vice versa.

• une tige de commande portant la pièce mobile et un pion de commande,
• un bras d'entrainement présentant deux bords longitudinaux, entrainé en translation par le moteur et comportant en outre un trou oblong longitudinal ouvert sur un coté de manière à déboucher dans un bord longitudinal du bras d'entrainement, l'ouverture latérale ainsi réalisée formant avec le trou oblong un double crochet, chacun des crochets étant destiné à loger le pion de commande.

According to the present invention, the transmission means comprise:

• a control rod carrying the moving part and a control pin,
• a drive arm having two longitudinal edges, driven in translation by the motor and further comprising a longitudinal oblong hole open on one side so as to open into a longitudinal edge of the drive arm, the lateral opening thus formed forming with the oblong hole a double hook, each of the hooks being intended to accommodate the control pin.

This particular structure for the locking device allows, thanks to the oblong hole and the opening made in the drive arm, consider switching from a manual mode of operation to a motorized mode of operation. The control pin can then move either under the action of the engine, or following a manual action.

An embodiment of a device according to the invention provides that the transmission means comprise an electric motor driving in rotation an endless screw in engagement with a drive nut, and that the drive arm is driven in translation with the drive nut. Such a motorization is reliable and easy to implement. In this embodiment, for better guidance of the drive arm and therefore the control pin, the drive arm can be fixed near one of its ends on the drive nut and the drive means. transmission may further comprise guide means in translation of the driving arm.

To facilitate the integration of a locking device according to the present invention, the motor used is advantageously fixed on a plate so as to form a motor designed to be integrated in a frame.

The present invention also relates to an assembly comprising a frame and an opening (such as for example a window), a motorized locking device for keeping the door in a closed position in the frame, characterized in that the motorized locking device is a locking device as described above.

In such an assembly the movable part of the locking device is for example a bolt mounted on the opening and the fixed part of the locking device may be a strike mounted on the frame. Other configurations are possible but the configuration proposed here allows for example to use a window of the prior art and to motorize its locking and / or unlocking.

To have an assembly that can be easily maneuvered both manually and motorized, it is expected for example that the opening comprises a manual control handle acting on a cremone rod to control the movement of a movable locking bolt relative to the 'opening, and that the locking bolt matches the room movable motorized locking device.

According to a preferred embodiment, the frame conventionally comprises two profiled uprights, a lower profiled cross member and an upper profiled cross member and, by applying the present invention, it is provided in one embodiment that the motor is integrated in the cross member. upper profile. One can also then provide an integrated electric control in the lower profile cross member.

• le bras d'entrainement est entrainé en translation vers sa seconde position extrême de manière à pousser le pion de commande de manière à amener le pêne dans sa position déverrouillée,
• le bras d'entrainement est entrainé en translation dans le sens inverse permettant ainsi au pion de commande de s'échapper hors du trou oblong,
• poursuite de la course du bras d'entrainement jusqu'à son retour dans une seconde position intermédiaire entre la seconde position extrême et la première position extrême,
• fermeture de l'ouvrant et introduction du pion de commande dans le trou oblong,
• le bras d'entrainement est entrainé vers sa première position extrême, amenant ainsi le pêne dans sa position verrouillée,
• le bras d'entrainement est ramené vers sa première position intermédiaire.

The present invention finally relates to a method for locking and unlocking an opening relative to a frame with a device comprising a movable bolt relative to a fixed striker, wherein the bolt moves in translation in a longitudinal direction between a position of locking and unlocking, the locking device comprising a drive arm having an oblong hole opening into a longitudinal edge of the drive arm and driven in translation between a first extreme position and a second extreme position, and a pin of control connected to the mobile bolt, said method comprising the following steps from a locked position of the opening relative to the frame in which the bolt is engaged with the striker and the control pin is abutting at one end of the hole oblong, the driving arm then being in a first intermediate position between its first e extreme position and its second extreme position:

• the drive arm is driven in translation towards its second end position so as to push the control pin so as to bring the bolt into its unlocked position,
• the drive arm is driven in translation in the opposite direction thus allowing the control pin to escape from the oblong hole,
• continuing the stroke of the driving arm until it returns to a second intermediate position between the second extreme position and the first extreme position,
• closing of the opening and introduction of the control pin in the oblong hole,
• the drive arm is driven to its first extreme position, thus bringing the bolt into its locked position,
• the drive arm is returned to its first intermediate position.

Such a method, as is apparent above, uses a locking device according to the present invention. A preferred embodiment provides that the second intermediate position corresponds to the first intermediate position.

• La figure 1 illustre une fenêtre avec un dispositif de verrouillage selon la présente invention,
• La figure 2 montre en perspective un dispositif de motorisation et un bras d'entrainement dans une première position extrême,
• La figure 3 est une vue similaire à la figure 2 dans une seconde position extrême, et
• Les figures 4A à F illustrent un fonctionnement d'un dispositif de verrouillage selon la présente invention.

Details and advantages of the present invention will become more apparent from the description which follows, given with reference to the appended schematic drawing in which:

• The figure 1 illustrates a window with a locking device according to the present invention,
• The figure 2 shows in perspective a driving device and a driving arm in a first extreme position,
• The figure 3 is a view similar to the figure 2 in a second extreme position, and
• The Figures 4A to F illustrate an operation of a locking device according to the present invention.

The following description is made with reference to a typing window. However, the present invention can also be applied to other types of windows or other closing devices (doors, etc.).

Conventionally, a window has a frame 2 and an opening 4 articulated on the frame 2 by hinges (not shown) so that the opening 4 can pivot about a vertical axis relative to the frame 2. It is assumed here and throughout the rest of the description that the frame 2 and the opening 4 are arranged vertically. The orientation of certain parts will be described later according to the vertical position of the frame 2 and the opening part 4.

The frame 2 has two uprights 6 vertical profiles connected by, on the one hand, an upper cross-member 8 horizontal profile and, on the other hand, a bottom cross member 10 horizontal profiled.

The opening 4 is also made from profiles which, as for the frame 2, can be made of aluminum, or aluminum alloy, in synthetic material, or in any other material that can be used for the production of profiles for making a window. The opening 4 thus has an upper profile 12, a lower profile 14 and vertical side profiles 16 connecting the upper profile 12 horizontal to the lower profile 14 horizontal.

The articulation between the opening 4 and the frame 2 is carried out using hinges mounted on the one hand, on a lateral profile 16 and, on the other hand, on an upright 6.

A locking device makes it possible to hold the opening 4 in the closed position in the frame 2 (the figure 1 shows the window in an open position to better distinguish the frame 2 and the opening 4). It comprises means arranged on the frame 2 as well as means arranged on the opening 4. Thus, the frame 2 carries a motorization illustrated in particular by the Figures 2 and 3 as well as a strike 18 ( figures 4 ) while the opening 4 carries a cremone rod 20. The actuator is integrated in a housing 22 which projects a driving arm 24, the housing 22 taking place in the upper rail 8. The espagnolette rod 20 is it mounted in a manner quite conventional on the opening 4 and it comprises at the upper section 12 a locking pin 26 and a control pin 28. The locking pin 26 serves as a bolt and its shape is adapted to cooperate with the striker 18. The locking pin 26 and the keeper 18 may be elements known from the prior art and conventionally used to achieve the locking of an opening. They are therefore known to those skilled in the art and are not detailed here.

We can notice here on the figure 1 the presence of a control handle 30. It may be as suggested by the figure 1 a removable handle designed to be easily put in place or removed. It can also be a control handle 30 intended to remain in position on a lateral profile 16 of the opening 4. The present invention, in its embodiment described here, can use an opening 4 of the art previous, without any adaptation. This is one of the advantages of the embodiment chosen to be described here.

The motorization of the locking device is illustrated on the figures 2 and 3 . In these figures, to better see the constituent elements of the engine, the corresponding case has not been illustrated.

The motorization thus comprises a base piece 32 which, on the one hand, serves to fasten various components described below and, on the other hand, can also be used to fasten the motorization within the upper cross member 8 .

The base piece 32 shown carries a flange 34 on which is fixed an electric motor 36. It is not shown in the drawing the power supply of the motor 36 nor the control means thereof. In addition, the illustrated housing can incorporate a reducer then forming a geared motor assembly. Subsequently, the motor indication 36 will designate indifferently the electric motor itself or the geared motor assembly.

The motor 36 has a motor shaft (not visible in the drawing) on which is mounted a coupling device 38 with a threaded rod 40 (or worm) mounted on two bearings 42. A nut 44 is engaged with the rod Threaded 40. It is guided on a rod 46 parallel to the threaded rod 40 so that when the threaded rod 40 is rotated, the nut 44 is driven in translation, the rod 46 preventing any rotation of the nut 44.

The drive arm 24 is fixed at a point on the nut 44. It is intended to move in translation and to guide it, there is provided a slide 48 and a guide rail 50. The slide 48 is under the shape of a ruler and is fixed at its center to the drive arm by fixing means 52. The guide rail 50 is fixedly mounted relative to the base piece 32 and has a U-shaped section, with a bottom and two branches. The bottom extends parallel to the slide 48 and the drive arm 24 and is between these two elements. The branches of the guide rail as for them are directed towards the slide 48 which is adapted to be guided between these branches. The bottom of the guide rail 50 has a slot, not shown, which allows the slide 48 and the drive arm 24 to slide when the nut 44 drives them.

The Figures 2 and 3 show the nut 44, and thus also the drive arm 24, in two extreme positions. The transition from one to the other extreme positions corresponds to the stroke of the device.

The driving arm 24 has an elongated shape, globally rectangular rounded at both ends. It thus has two longitudinal edges, an outer longitudinal edge 54 and an inner longitudinal edge 56. This arm is intended to be arranged in a horizontal plane. In the closed position of the opening 4, it is then between the upper cross member 8 and the upper profile 12. Note near the end of the drive arm 24 opposite the nut 44, the presence of a oblong hole 58 longitudinal (thus extending parallel to the edges of the arm). This oblong hole 58 opens through an opening 60 in the inner longitudinal edge 56. The end of the drive arm 24 provided with the oblong hole 58 thus forms, taking into account the opening 60, a double hook whose operation is explained ci -after reference to Figures 4A to F .

The Figure 4A illustrates a locked position of the opening 4 relative to the frame 2. Note in this position that the locking pin 26 is engaged in the keeper 18 thus achieving a known manner locking. The driving arm 24 is in a position called first intermediate position which corresponds to an intermediate position between the first extreme position and the second end position of the driving arm 24. In this first intermediate position, the control pin 28, connected to the locking pin 26 by the cremone rod 20, takes place in a first hook of the drive arm, that is to say that the control pin 28 abuts against a first end of the slot 58 located on the side of the nut 44.

To then achieve a motorized unlocking, it is planned to drive the drive arm 24 with the aid of the motor 36, in particular by means of the nut 44. The driving arm 24 is then driven to its end. second extreme position illustrated on the figure 3 . It pushes the control pin 28 which via the cremone rod 20 drives the locking pin 26 out of the striker 18. During this movement, the control pin remains at the bottom of the first hook, it is that is to say that it remains in abutment against the first end of the oblong hole 58. A maintenance of the opening 4 relative to the frame 2 is thus still achieved.

To let the control pin 28 escape out of the slot 58 and then release the opening, under the action for example of the thrust of joints sealing (not shown) generally provided between the opening 4 and the frame 2 and / or an ejection system, the driving arm 24 is translated by means of the motor 36 to a second intermediate position ( fig 4C ). Note that the corresponding edge of the opening 60 is inclined to facilitate the output of the control pin out of the slot 58. The locking device thus being unlocked, the opening 4 can be opened and out of the frame 2 by pivoting around of its hinges. The relative position of the espagnolette rod 20 and thus of the control pin 28 and the locking pin 26 relative to the opening 4 is the same for the two positions illustrated in FIG. Figures 4B and 4C .

The second intermediate position of the driving arm 24 is chosen so that when the opening 4 returns to its fully closed position in the frame 2, the control pin 28 can penetrate smoothly into the oblong hole 58. It will be found then, preferably, near the second end of the slot 58, opposite the first end defined above. This closed position is illustrated on the figure 4D .

From the position illustrated on the figure 4D , the driving arm 24 is translated by means of the motor 36 towards its first extreme position ( figure 2 ). The starting of the motor 36 can be triggered for example by means of a sensor (not shown). One can for example have a position sensor of the opening 4 relative to the frame 2 which allows to know when the window is fully closed. Preferably such a sensor will be removed from the hinge hinges of the opening 4 on the frame 2. For example, it is possible to position such a sensor between the upright 6 opposite the hinges and the corresponding lateral profile 16. Control and management means may provide the conditions under which the detection of a closure of the opening 4 triggers the start of the motor 36 to bring it to its first extreme position.

The figure 4E illustrates the control pin 28 in its position (relative to the opening 4) of the Figures 4B to D . In the movement of the driving arm 24, the control pin 28 then engages with the second hook, that is to say that it abuts against the second end of the hole oblong 58. Then continuing its course towards its first extreme position ( figures 2 and 4F ), the drive arm 24 pulls the control pin 28 into the second hook with it and brings the locking pin 26 towards the latch 18 to engage with it.

To complete the unlocking / locking cycle, it is planned to further bring the driving arm 24 from its first extreme position to its first intermediate position, without driving the pins, or the cremone rod 20, thus allowing to find the initial position of the Figure 4A .

From the description of Figures 4A to F In the foregoing, it will of course be apparent to those skilled in the art that the design of the locking device depends on the external parameters given by the structure of the window. Thus, for example, the total travel of the driving arm 24 corresponds to the travel required for the locking pin 26 to go from a locked position to a fully unlocked position plus the length of the oblong hole 58. The width of this oblong hole 58 depends on the dimensions of the corresponding control pin 28. Note that the first end position of the drive arm 24 corresponds to the locked position (locking pin 26, or bolt, engaged with the latch 18) and control pin 28 abuts in the second hook. In addition, the second end position of the drive arm 24 corresponds to the unlocked position and control pin 28 abuts in the first hook.

The length of the opening 60 corresponds in the embodiment chosen to the stroke of the control pin 28 between its extreme positions (which here also corresponds to the overall stroke of the locking pin 26), increased by the diameter of the control pin 28 at the level of the opening 60.

The locking device can be sized so that the first intermediate position of the driving arm 24 ( Fig. 4A ) corresponds to the second intermediate position of this arm ( Fig. 4C and D ).

An advantage of the locking device presented here is that it can be operated by the motor 36 automatically or by manual control as well as from the control handle 30 when it is mounted on the opening 4.

Indeed, when the window is locked ( Fig. 4A ), it has been seen that it was possible to unlock using the motor 36. It is sufficient for example to provide a command, for example a touch control 62, which is available in an accessible place. This touch control 62 is preferably then located on the lower rail 10 which is often the most accessible place on a window, both for a healthy person for a disabled person. It is also possible to unlock manually. If one acts on the control handle 30 from the position illustrated on the Figure 4A , the cremone rod 20 will be actuated and will pass the locking pin 26 and the control pin 28 in their position shown on the Figure 4B . However, with respect to this figure, the drive arm 24 will have another position but thanks to the opening 60, the control pin 28 can escape from the slot 58 and allow the opening of the opening 4.

If we decide to close the window, we can simply do the opposite maneuver, that is to say push the opening 4 against the frame 2, operate the control handle 30 in the opposite direction and then we arrive again in the position illustrated on the Figure 4A .

We can also close the window motorized way. If, as previously stated, the first intermediate position of the driving arm 24 also corresponds to the second intermediate position of this arm, then we find ourselves in the position illustrated on FIG. figure 4D when the opening 4 is pushed against the frame 2. Automatic closing, using the sensor described above to detect a closing of the opening 4, or by action on the touch control 62 may be considered.

The device described can thus be maneuvered only manually, or motorized, either automatically or by action on a command to start the engine such as the touch control 62.

The locking device according to the present invention can easily be adapted to an existing window (or door or the like). In the embodiment described, it is seen that the opening is not affected by the locking device. The integration of a motorization for the locking of an opening is therefore greatly simplified compared to known devices of the prior art.

It will also be apparent to those skilled in the art that the device presented is a simple device, easy to implement and requiring (almost) no maintenance.

Of course, the present invention is not limited to the preferred embodiment described above and the variants mentioned. It also relates to all the variants within the scope of those skilled in the art within the scope of the claims below.

Claims (11)

Motorized locking device for an opening (4) in a frame (2) comprising: - a fixed part (18) and a movable part (26) between an unlocked position remote from the fixed part (18) allowing an opening of the opening (4) relative to the frame (2) and a locked position in which the movable part (26) cooperates with the fixed part (18) to maintain the opening (4) in the closed position in the frame (2), - a motor (36) and transmission means for moving the movable part (26) from its unlocked position to bring it into its locked position and vice versa, characterized in that
the transmission means comprise: - a control rod (20) carrying the movable part (26) and a control pin (28), - a drive arm (24) having two longitudinal edges (54, 56), driven in translation by the motor (36) and further comprising an oblong hole (58) longitudinally open on one side so as to open into an edge longitudinal (56) of the driving arm (24), the opening (60) thus formed forming with the oblong hole (58) a double hook, each of the hooks being intended to accommodate the control pin (28). Locking device according to claim 1, characterized in that the transmission means comprise an electric motor (36) driving in rotation a worm (40) engaged with a drive nut (44), and in that the driving arm (24) is driven in translation with the drive nut (44). Locking device according to claim 2, characterized in that the drive arm (24) is fixed close to one of its ends on the drive nut (44), and in that the transmission means further comprise means (48, 50) for guiding the drive arm (24) in translation. Locking device according to one of claims 1 to 3, characterized in that the motor (36) is fixed on a plate (32) so as to forming a motor to be integrated in a profile (8) dormant. Assembly comprising a frame (2) and a sash (4), a motorized locking device for holding the sash (4) in a closed position in the frame (2), characterized in that the motorized locking device is a locking device according to one of claims 1 to 4. Assembly according to claim 5, characterized in that the movable part of the locking device is a bolt (26) mounted on the opening (4), and in that the fixed part of the locking device is a striker (18) mounted on the frame (2). Assembly according to one of claims 5 or 6, characterized in that the opening (4) comprises a manual control handle (30) acting on a cremone rod (20) to control the movement of a bolt (26) movable lock relative to the opening (4), and in that the locking bolt (26) corresponds to the moving part of the motorized locking device. Assembly according to one of claims 5 to 7, characterized in that the frame (2) comprises two profiled uprights (6), a lower profiled crossbar (10) and an upper profiled crossbar (8), and in that the engine (36) is integrated in the upper profiled cross member (8). Assembly according to claim 8, characterized in that it further comprises an electric control (62) integrated in the lower profiled cross member (10). A method of locking and unlocking an opening (4) relative to a frame (2) with a device comprising a bolt (26) movable with respect to a fixed striker (18), wherein the bolt (26) moves in translation in a longitudinal direction between a locking and unlocking position, the locking device comprising a driving arm (24) having an oblong hole (58) opening into a longitudinal edge (56) of the driving arm (24) and driven in translation between a first end position and a second end position, and a control pin (28) connected to the movable bolt (26), said method comprising the following steps from a locked position of the opening (4) with respect to the frame (2) in which the bolt (26) is engaged with the striker (18) and the control pin (28) abuts at one end of the oblong hole (58), the driving arm (24) then being in a first intermediate position between its first extreme position and its second extreme position: the driving arm (24) is translated into its second end position so as to push the control pin (28) so as to bring the bolt (26) into its unlocked position, the drive arm (24) is driven in translation in the opposite direction, thus allowing the control pin (28) to escape from the oblong hole (58), continuing the travel of the driving arm (24) until it returns to a second intermediate position between the second extreme position and the first extreme position, - closing of the opening (4) and introduction of the control pin (28) in the oblong hole (58), the driving arm (24) is driven towards its first extreme position, thus bringing the bolt (26) into its locked position, - The drive arm (24) is returned to its first intermediate position. Method according to claim 10, characterized in that the second intermediate position corresponds to the first intermediate position.

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