EP4130413A1 - Extension device for a frame and detection system - Google Patents

Abstract

Extension device, comprising a guide (70), fixed to an edge belonging to a door frame and an extension (60), which is slidably mounted on the guide parallel to a longitudinal direction (X70), the extension (60) comprising an end sensor (64) and a drive end (62), opposite in the longitudinal direction, the extension (60) being able to be positioned, with respect to the guide (70), so that the drive end ( 62) and the detection end (64) each simultaneously protrude from the guide in the longitudinal direction (X70), the extension (60) being configured to bear against a movable part (24) of a fitting belonging to the frame via the drive end (62), in the longitudinal direction (X70).

Description

The present invention relates to an extension device for a frame, a detection system comprising such an extension device and a position detector, and a frame, comprising in particular the detection system.

The invention relates to the field of detecting the position of a moving part belonging to a frame fitting, the frame constituting for example a door, a window or a shutter.

To detect the current position of the movable part of a frame fitting, it is known to fix a position detector on the edge which carries said movable part, the detector comprising a sensing rod which is then actuated by the movable part to reflect the position of the moving part. For this, for example, the feeler rod is placed in axial abutment against the movable part, so as to be movable in translation with the movable part. The position of the feeler rod is then detected using one or more sensors, to deduce therefrom the position of the moving part. The detector therefore makes it possible to detect the current configuration of the fitting, to determine for example whether the fitting is in a locking or unlocking configuration of the frame. A detector suitable for this application is described in FR3102787A1 .

However, depending on the manufacturer and the type of frame, frames can come in a wide variety of forms, including their fittings. Consequently, the moving part of the fitting does not always have an end whose arrangement easily allows the position detector to be added to the frame, in a position where the moving part actuates the feeler rod. In particular, the movable part of the fitting can be concealed under a fixed part of the fitting, so that the sensing rod cannot reach it. This is particularly the case for frames with sliding leaves, in which the mobile part of the fitting is in the form of a cremone bolt sliding along the edge of the opening and often covered by a fixed part of the fitting, by example in the form of a faceplate, ensuring the sliding guidance of the cremone bolt and covering the edge.

EP 3 680 429 A1 describes a connector device, which can be attached to the end of a lever, using connection means, to extend it. This connector device has a cover plate made of a material which allows it to be detected by means for detecting the state of the locking fitting, by electromagnetic detection. However, the means of connection require that the connector device has a relatively large size, which is not always compatible with the geometry of certain fittings, and can hardly be designed to adapt to particularly varied types of fittings. Furthermore, there is a risk of detachment of the connection means, leading to the disconnection of the connector device.

The invention aims to remedy the drawbacks of the prior art, by proposing an extension device for a frame, which is particularly versatile and reliable.

The subject of the invention is an extension device for a frame. According to the invention, the extension device comprises a guide, which is configured to be fixed on an edge belonging to the frame, and an extension, which is slidably mounted on the guide, parallel to a longitudinal direction of the extension device, the extension comprising a detection end and a driving end, opposite in the longitudinal direction, the extension being able to be positioned, relative to the guide, so that the driving and detection ends each simultaneously protrude from the following guide the longitudinal direction, the extension being configured to bear against a movable part of a fitting belonging to the frame via the drive end, in the longitudinal direction.

An idea at the base of the invention is that, the extension being guided in sliding by the guide, itself fixed to the edge, the risk of the extension device separating from the frame is particularly low, thus ensuring the reliability of the extension device. Indeed, it is easy to secure the guide solidly with the edge, for example using a fixing member such as a screw. Furthermore, the extension being guided in sliding by the guide, its movement by the movable part of the fitting takes place according to a single degree of freedom, which is a translation of the extension along the main axis, with respect to the guide and to the song. Therefore, it is easy to provide provisions for transmitting the movement of the movable part of the fitting to the extension, by transferring the movement of the movable part to this single degree of freedom. Therefore, it is not necessary to provide complex connection means between the extension and the mobile part so that the position of the extension reflects the position of the mobile part. For example, for this purpose, provision is simply made to place the mobile part of the fitting in axial abutment against the extension. It follows that the extension device is particularly versatile, in that the extension, devoid of connection means with the movable part, or having simplified connection means, is easily adapted to several types of moving fitting parts.

In particular, the extension has no other support against the moving part than support in the longitudinal direction, in particular no support in the opposite direction to the longitudinal direction. In particular, the extension is not fixed to the movable part of the fitting.

Preferably, the guide comprises a cover, along which the extension slides and which comprises a fixing orifice, configured to be traversed by a first fixing member, in a direction of depth, perpendicular to the longitudinal direction, in order to fix the guide to singing.

Preferably, the extension comprises a main oblong orifice, which is designed to be axially aligned with the fixing orifice for several positions of the extension in the longitudinal direction, so as to be able to slide while being traversed by the first fixing member, when the first fastener is received in the fastener hole.

Preferably, the extension comprises a secondary oblong orifice, which is arranged between the main oblong orifice and the drive end, the secondary oblong orifice being configured to be traversed by a second fixing member, in the direction of depth .

Preferably, the cover comprises a bearing end, in the longitudinal direction, via which the cover is intended to come into axial support against a fixed part belonging to the fitting.

Preferably, the guide comprises two walls, which protrude from the cover, in the direction of depth, the extension being received between the two walls so that the sliding of the extension is guided by the two walls. Preferably, the guide comprises a bridge, which connects the two low walls together and which faces the cover, the extension being received between the bridge and the cover so that the sliding of the extension is guided by the cover and the bridge.

Preferably, the bridge is offset from the attachment hole parallel to the longitudinal direction, so that the first attachment member extends beside the bridge when the first attachment member is received in the hole of fixation.

Preferably, the extender device comprises a permanent magnet, which is carried by the extender.

The invention also relates to a detection system, comprising the extension device defined above and a position detector, which is configured to detect the position in translation of the extension relative to the guide, in the longitudinal direction, in particular the position of the sensing end of the extender.

Preferably, to detect the translational position of the extension relative to the guide, the position detector comprising a sensing rod, which bears against the detection end of the extension in the longitudinal direction, so that the sensing rod and the extension are movable together parallel to the longitudinal direction.

The invention also relates to a door frame, comprising the detection system defined above, a frame, an opening, which is mounted to move on the frame between an open position and a closed position, the edge, which belongs to the sash or frame, the extension device being fixed on the edge by means of the guide, so that the longitudinal direction is parallel to the edge, and the fitting, which is carried by the edge and which comprises the movable part.

• [Fig 1] La figure 1 est une vue en perspective partielle d'une huisserie équipée d'un système de détection, incluant notamment un détecteur de position et un dispositif de rallonge, selon un premier mode de réalisation conforme à l'invention.
• [Fig 2] La figure 2 est une vue en perspective partielle, montrant le système de détection et une ferrure appartenant à de la figure 1.
• [Fig 3] La figure 3 est une vue de face des mêmes éléments que ceux de la figure 2.
• [Fig 4] La figure 4 est une vue en perspective du dispositif de rallonge des figures précédentes.
• [Fig 5] La figure 5 est une vue de dos du dispositif de rallonge des figures précédentes.
• [Fig 6] La figure 6 est une vue de côté du système de détection et d'un montant appartenant à l'huisserie des figures précédentes.
• [Fig 7] La figure 7 est une vue en perspective partielle, montrant un système de détection et une ferrure appartenant à une huisserie, selon un deuxième mode de réalisation conforme à l'invention.
• [Fig 8] La figure 8 est une vue en perspective similaire à celle de la figure 5, montrant un dispositif de rallonge selon un troisième mode de réalisation conforme à l'invention.
• [Fig 9] La figure 9 inclut une vue en perspective éclatée, montrant un dispositif de rallonge et une partie d'une huisserie selon un quatrième mode de réalisation, ainsi que deux vues de détails pour le montage de ce dispositif de rallonge.

The invention and other advantages thereof will appear more clearly in the light of the following description of embodiments in accordance with the invention, given solely by way of example and made with reference to the drawings below in which :

• [ Fig 1 ] There figure 1 is a partial perspective view of a door frame equipped with a detection system, including in particular a position detector and an extension device, according to a first embodiment in accordance with the invention.
• [ Fig 2 ] There picture 2 is a partial perspective view, showing the detection system and a fitting belonging to the figure 1 .
• [ Fig.3 ] There picture 3 is a front view of the same elements as those of the figure 2 .
• [ Fig 4 ] There figure 4 is a perspective view of the extension device of the preceding figures.
• [ Fig.5 ] There figure 5 is a rear view of the extension device of the preceding figures.
• [ Fig 6 ] There figure 6 is a side view of the detection system and of an amount belonging to the frame of the preceding figures.
• [ Fig 7 ] There figure 7 is a partial perspective view, showing a detection system and a fitting belonging to a door frame, according to a second embodiment in accordance with the invention.
• [ Fig.8 ] There figure 8 is a perspective view similar to that of the figure 5 , showing an extension device according to a third embodiment in accordance with the invention.
• [ Fig.9 ] There figure 9 includes an exploded perspective view, showing an extension device and part of a frame according to a fourth embodiment, as well as two detail views for the assembly of this extension device.

There figure 1 shows a frame according to a first embodiment. The frame comprises a frame 1, an opening 2, a position detector 9 and an extension device 6. The position detector 9 and the extension device 6 together form a detection system, shown in more detail with part of the door frame on the figure 2 And 3 . The extension device 6, shown alone on the figure 4 And 5 , includes an extension 60 and a guide 70.

A longitudinal direction X70, a transverse direction Y70 and a depth direction Z70 are defined, which are mutually perpendicular and fixed relative to the guide 70.

The frame is currently a window, in particular a sliding window. Alternatively, the frame is, for example, a door or a shutter, or any other similar frame, in particular applicable to a building.

The fixed frame 1 forms a frame, for example rectangular, which here extends parallel to the directions X70 and Z70 whatever the position of the opening 2. The fixed frame 1 delimits the opening of the frame, that is to say i.e. the bay of the frame, which can be closed or opened by the opening 2, depending on the position of the opening 2. The fixed frame 1 preferentially extends along a vertical plane, in particular in the case where the The frame is integrated into a wall belonging to the building.

In the present example, the opening 2 is slidably mounted on the frame 1, for example using rails or any suitable means, so as to be movable in the direction Z70 relative to the frame 1, between a position of opening, shown on the figure 1 , and a closed position. As a variant, provision could be made for the sash to be mounted swinging, that is to say pivoting around an axis parallel to the direction X70, and/or oscillating, that is to say pivoting around a axis parallel to direction Z70, between a closed position and one or more open positions. More generally, the sash is movably mounted on the fixed frame between at least one open position and one closed position.

The opening 2 comprises a frame, which delimits its outline and, preferably, a glazing mounted and framed by said frame. The opening 2 is preferably rectangular in shape, circumscribed within the frame of the frame 1. The opening 2 extends here in a plane which is parallel to the directions X70 and Z70. The frame is here formed by four uprights, two vertical and two horizontal, including a vertical upright 26, parallel to the direction X70. The uprights are arranged in a rectangle around the glazing. The opening 2 comprises an edge 21, which is an outer peripheral surface of the opening 2, delimiting its periphery. Edge 21 belongs to the frame of opening 2. Longitudinally, edge 21 here extends parallel to direction X70. Transversely, edge 21 extends parallel to the direction Y70. Similarly, the fixed frame 1 comprises a complementary edge, not visible in the figures, which is an internal peripheral surface of the fixed frame 1, delimiting its internal contour. The edge of the frame 1 belongs to the frame of the frame, being formed by at least one internal surface of an amount belonging to the frame of the frame, parallel to the amount 26. The edge 21 of the opening 2 and the edge of the frame 1 come bearing against each other in the direction Z70, when the opening 2 is in the closed position, to obtain the closure of the frame.

Upright 26 and edge 21 are more precisely visible on the figure 6 . In the example, the upright 26 consists of a profile, which extends along the direction X70 and whose cross section is shown on the figure 6 . As a profile, the cross section of the upright 26 is retained over the entire length of the upright 26 in the direction X70, except for certain specific arrangements, for example to receive the detector 9 and/or a fitting control, discussed below. .

Edge 21 constitutes the transverse side of upright 26 in a direction opposite to direction Z70. In the example, an opposite side of the upright 26 receives the glazing.

The edge 21 advantageously comprises two flanges 29, which face one another in the direction Y70. Preferably, the flanges 29 are at the same height in the direction Z70. Between the two flanges 29, the post 26 forms a channel 30, which sinks towards the inside of the post 26 with respect to the flanges 29, in the direction Z70. The edge 21 preferably comprises at least one rabbet, here two rabbets 27, which project in a direction opposite to the direction Z70 with respect to the flanges 29, being arranged on either side of the flanges 29. The rabbets 27 provide between they have a groove 28, a bottom of which is formed by the flanges 29 and the channel 30. The groove 28 opens out in the opposite direction to the direction Z70. The sash 2 advantageously comprises seals or other equipment carried by the rabbets 27, facing the inside of the groove 28, to cooperate with the corresponding edge of the frame 1 when the sash is in the closed position, and ensure the sealing, acoustic insulation and/or other functions. More generally, the edge 21 shown here is a female edge, the groove 28 of which receives a complementary male part of the edge of the fixed frame 1, when the opening 2 is in the closed position.

The frame comprises a fitting 22, to fix the sash 2 relative to the frame 1, when the sash 2 is in the closed position. The fitting 22 adopts at least two distinct configurations, including a locking configuration and an unlocking configuration. Here, the configuration of the fitting 22 is controlled by a manual control 25, for example in the form of a handle carried by the upright 26. alternatively, provision could be made for the fitting 22 to be motorized, so that the control of its configuration is automatic. Here, fitting 22 equips edge 21 of sash 2.

The fitting 22 is arranged along the edge 21, the greatest length of the fitting 22 extending in the direction X70. Here, the manual control 25 also equips the opening 2.

Alternatively, provision could be made for the fitting to equip the edge of frame 1.

The fitting 22 comprises a movable part 24, here in the form of an espagnolette, and, preferably, a fixed part 23, here in the form of a faceplate. The fixed part 23 is fixed relative to the edge 21, being fixed to the edge 21. The movable part 24 is movable relative to the edge 21 and to the fixed part 23, preferably according to a sliding movement parallel to the direction X70. More generally, the term “moving part” means a part of the fitting which takes up distinct positions with respect to the edge, with respect to the fixed part of the fitting and/or with respect to the frame of the leaf. The cremone bolt and the headrest of the present example are particularly suitable for a sliding sash such as the sash 2, but another type of fitting could be provided, in particular a fitting with a sliding pin, in the case of a swinging, oscillating or swinging sash. tilt and turn. More generally, depending on the application, the fitting may comprise one or more moving parts to ensure the locking or unlocking of the leaf. Here, the espagnolette is a part that provides locking and is both used for detecting the configuration of the fitting. Whatever the type of fitting, the fitting advantageously comprises a transmission mechanism, not shown, by means of which the position of the movable part is controlled by the manual control, and/or by the possible motorization fitted to the frame.

Here, it is planned to fix the extension device 6 and the position detector 9 on the opening 2, in particular on the edge 21 equipped with the movable part 24 of the fitting 22, so that the directions X70, Y70 and Z70 are fixed relative to the opening 2. Alternatively, for a frame where the movable part of the fitting would be equipped on an edge belonging to the fixed frame, this edge would be equipped with the extension device and the position detector.

The parts 23 and 24 of the fitting 22 are better visible on the figure 2 , 3 And 6 .

In the example illustrated, the fixed part 23, constituting a headrest, is generally in the form of a plate, extending along a plane parallel to the directions X70 and Y70. The headrest is elongated in the direction X70, and of reduced width in the direction Y70, thus forming a flat profile, or essentially flat, and of constant width. As shown on the figure 1 And 6 , the fixed part 23 is fixed on the edge, being received in support on the flanges 29, which fix the part 23 parallel to the directions Y70 and Z70. In particular, an inner face 37 belonging to the fixed part 23, facing in the direction Z70, rests on the two flanges 29 in the direction Z70. On the figure 6 , part 23 is shown schematically in broken lines. Thus positioned, the fixed part 23 covers the channel 30 over part of its length along the direction X70. To be immobilized and fixed on the opening 2, it is preferably provided that the fixed part 23 has one or more through holes 31, each hole 31 receiving a respective screw 32, located in the edge 21 in the direction Z70, here in the bottom of the channel 30. The screws 32 are represented schematically on the figure 1 and are represented symbolically by their center line on the figure 2 And 3 , this axis line representing the orientation of the body of the screw, which is parallel to the direction Z70. Fixing means other than screws 32 and orifices 31 are possible.

In the example illustrated, the movable part 24, constituting a cremone bolt, is generally in the form of a plate, extending along a plane parallel to the directions X70 and Y70. The cremone bolt is elongated in the direction X70, and of reduced width in the direction Y70, thus forming a flat profile, or essentially flat, and of constant width. As shown on the figure 2 , 3 And 6 , the movable part 24 is placed flat against the inner face 37 of the fixed part 23. On the figure 6 , the movable part 24 is shown in broken lines. In the example, the mobile part 24 is received in the channel 30, against the fixed part 23. The mobile part 24 is slidably supported against the fixed part 23, in the direction Z70. The fixed part 23 therefore covers the mobile part 24, thus enclosing it in the channel 30. The channel 30 is wide enough to allow the sliding of the mobile part 24 parallel to the direction X70, with respect to the edge 21 and to the part fixed 23. Optionally, the walls of the channel 30 ensure the positioning of the mobile part 24 parallel to the direction Y70.

If screws 32 or similar fixing means of the fixed part 23 are provided, all or part of these screws 32 is likely to have to pass through the movable part 24 parallel to the direction Z70 in order to be able to be installed in the edge 21. In the example, this is the case for one of the screws 32, visible on the left on the picture 2 . For the screw 32 to pass through the movable part without hindering its translational movement in the direction X70, the movable part 24 advantageously comprises an oblong hole 33, through which the screw 32 passes through the movable part. The oblong hole 33 passes through the movable part 24 in the direction Z70 and has its greatest length in the direction X70. Optionally, the oblong hole 33, cooperating with the screw 32, guides the sliding of the movable part 24 in the direction X70.

In the present example, the fitting 22 includes a hook 34, which is fixedly secured to the movable part 24. When the opening 2 is in the closed position and the fitting 22 is in the locking configuration, the hook 34 cooperates with a striker. , not shown, provided on the opposite edge, to keep the opening 2 closed. When the fitting 22 is in the unlocking configuration, the hook 34 and the striker are released from each other, allowing the opening 2 to be moved to the open position. Between the locking configuration and the unlocking configuration, the hook 34 is moved in translation parallel to the direction X70, under the action of the movable part 24 which carries it, while the movable part 24 is itself actuated by the fitting control 22. As shown on the figure 2 And 3 , the hook 34 is fixed to the movable part 24, here by riveting, and protrudes from the movable part 24 in the opposite direction to the direction Z70. In doing so, the hook 34 passes through the fixed part 23 via an oblong hole 35 made through the fixed part 23, visible on the picture 3 . The hook 34 therefore extends into the groove 28, or, at the very least, set back with respect to the rabbet or rabbets 27. The oblong hole 35 passes through the movable part 24 in the direction Z70 and has its greatest length along the direction X70. Optionally, the oblong hole 35, cooperating with the hook 34, or with a part at the base of the hook 34, guides the sliding of the movable part 24 in the direction X70. As a variant, means other than the hook 34 can be provided to ensure the locking and unlocking of the opening 2, for example a pin or a bolt.

The extension device 6 is made in two main parts, one, consisting of the guide 70, being a part attached fixedly to the edge 21, the other, consisting of the extension 60, being movable with the movable part 24 of the fitting 22. The guide 70 is fixed on the edge 21, so that the direction X70 is parallel to the edge 21 and the direction Z70 is directed towards the inside of the upright 26 forming the edge 21. The guide 70 supports the extension 60 by providing sliding guidance of the extension 60 relative to the guide 70 parallel to the direction X70. In other words, the guide does not oppose a translation of the extension 60 parallel to the direction X70, but, within clearance, maintains the extension 60 in position in the direction of the directions Z70 and Y70. The guide 70 blocks the rotation of the extension 60 around an axis parallel to the direction Y70 and around an axis parallel to the direction Z70. Preferably, the guide 70 and the extension 60 are complementary to block the rotation of the extension 60 with respect to the guide 70 around an axis parallel to the direction X70.

Preferably, as best visible on figure 4 And 5 , the guide 70 comprises a cover 71, two low walls 72 and a bridge 73.

In the example, the cover 71 is in the form of a plate, which extends along a plane parallel to the directions X70 and Y70. As seen on the figure 2 , 3 And 6 , the guide 70 is mounted on the edge so that the cover 71 extends in the extension of the fixed part 23. Then, the fixed part 23 is in the direction X70 with respect to the cover 71. Preferably, according to the direction Y70, the cover 71 and the fixed part 23 are substantially of the same width, and, in the direction Z70, the cover 71 and the fixed part 23 are substantially of the same thickness.

As shown on the figure 6 , the cover 71 is received in abutment on the flanges 29, which fix the cover 71 parallel to the directions Z70 and Y70. More precisely, the cover 71 comprises two opposite longitudinal sides 76, parallel to the direction X70, one being turned in the direction Y70, the other in the opposite direction. These two longitudinal sides 76 advantageously bear against the flanges 29 in the direction Z70. One of the longitudinal sides 76 advantageously bears against one of the flanges 29 in the direction Y70, while the other advantageously bears against the other of the flanges 29 in the opposite direction. Preferably, by complementarity with the flanges 29, the sides 76 also ensure an anti-rotation function of the guide 70, for any direction.

The cover 71 advantageously comprises a bearing end 75, via which the cover 71 can come to bear, in the direction X70, against a longitudinal end 36 of the fixed part 23. In the example illustrated, the cover 71 is actually mounted so that the end 75 is thus supported. The bearing end 75 is here formed by a rectilinear edge of the cover 71, parallel to the direction Y70, and connecting the longitudinal sides 76 to one another. Similarly, the end 36 of the fixed part 23 is formed by an edge rectilinear of the fixed part 23, parallel to the direction Y70. By being thus in support, the end 75 makes it possible to position the guide 70 in the direction X70, with respect to the edge 21 and/or to the fixed part 23. The bearing of the end 75 also ensures, if necessary, an anti-rotation function of the guide 70 around an axis parallel to the direction Z70.

Each low wall 72 projects from the cover in the direction Z70. Each low wall 72 is elongated parallel to the direction X70. The walls 72 are parallel to each other and to the direction X70. The low walls 72 are spaced from each other parallel to the direction Y70, so as to form a bridge with the cover 71. Each low wall 72 advantageously extends from a longitudinal end 77 belonging to the cover 71, which is opposite end 75. From end 77, along direction X70, each low wall 72 advantageously extends all along cover 71, and extends beyond end 75. In other words, the cover 71 covers only part of the low walls 72, following direction X70. When the bearing end 75 is close to or bearing against the end 36 of the fixed part 23 of the fitting 22, the low walls 72 therefore extend against the inner face 37 of the fixed part 23. The fixed part 23 therefore advantageously retains the guide 70 on the edge, resting against the part of the low walls 72 protruding from the cover 71, in the direction Z70. In addition, the low walls 72 can advantageously come to bear, one along the direction Y70, the other in the opposite direction, against the walls of the channel 30. The low walls 72 therefore contribute to the positioning of the guide 70 on the edge 21. Preferably, each low wall 72 has laterally one or more ribs 78, as visible on the figure 4 . For each low wall 72, the ribs 78 are arranged on a face of the low wall which is perpendicular to the direction Y70, and which is turned away from the other low wall 72. These ribs 78, thus turned in the direction of the walls of the channel 30, advantageously allow tight fitting of the low walls 72 in the channel 30, facilitating the immobilization of the guide 70 on the edge 21 while adapting the guide 70 to any variations in geometry of the edge 21. Preferably, provision is made for each low wall 72 is positioned set back relative to the longitudinal side 76 of the cover 71, along which this low wall 72 extends. In other words, each longitudinal side 76 protrudes, parallel to the direction Y70, relative to the corresponding low wall 72. This allows the longitudinal sides 76 to bear against the flanges 29 in the direction Z70. In the present example, the low walls 72 are distant from the bottom of the channel 30, in the direction Z70.

In the example, the bridge 73 is in the form of a plate, which extends along a plane parallel to the directions X70 and Y70. The bridge 73 connects the low walls 72 to each other. The bridge 73 is offset in the direction Z70 with respect to the cowl 71. The bridge 73 and the cowl 71 are spaced from each other in the direction Z70. In other words, each low wall 72 connects the cover 71 to the bridge 73, on either side of the bridge 73, so that the bridge 73, the low walls 72 and the cover 71 describe a form of duct with a closed contour around a axis parallel to direction X70. Preferably, provision is also made for the bridge 73 to be offset in the direction X70 with respect to the cover 71. This makes it possible to guide the extension 60 over a greater distance, without penalizing the space required for the extension device 6. In particular , the bridge 73 extends only along the part of the low walls 72 which protrudes from the cover 71.

Preferably, when the guide 70 is fixed on the edge 21, the mobile part 24 of the fitting 22 extends substantially in the extension of the low walls 72 and/or of the bridge 73 in the direction X70, as visible on the figure 6 .

Depending on the geometry of the edge on which the device 6 is actually installed, different parts of the guide 70 can be used for bearing and positioning of the guide 70 on the edge of the frame. For example, in the absence of flanges 29, the longitudinal sides 76 may not bear against the edge, the support being provided by the low walls 72. The combined presence of the low walls and the cover 71 as described above can be adapted to most frame edge geometries.

Preferably, the guide 70 comprises a fixing hole 79, which crosses the cover 71 right through, parallel to the direction Z70. Preferably, the orifice 79 is positioned in the center of the cover 71. In the direction Z70, the orifice 79 opens between the two low walls 72. As clearly visible on the figure 5 , the bridge 73 is offset in the direction X70 with respect to the orifice 79. The fixing orifice 79 is designed to receive a fixing member 80, such as a screw, to fix the guide 70 on the edge 21. The screw 80 is represented schematically on the figure 1 and symbolized by its axis line on the figure 2 And 4 . The screw 80 is implanted in the edge 21, in particular in the bottom of the channel 30, in the direction X70. Preferably, a single screw 80 is sufficient to fix the guide 70 on the edge 21, while the guide 70 has a complementary shape with the edge to be positioned on the edge. The fact of providing a single screw 80 facilitates the installation of the guide 70 on the edge 21. The orifice 79 emerging between the two low walls 72 and the bridge 73 being offset with respect to the orifice 79, the passage of the screw 80 is not hindered by the bridge 73 and the low walls 72, the screw 80 passing by.

In the example, the extension 60 forms a flat part, in a plane parallel to the directions X70 and Y70, and which is elongated in the direction X70. The extension 60 is of generally rectangular shape in this plane. The extension 60 passes through the duct formed by the cover 71, the low walls 72 and the bridge 73, to be slidably guided along the direction X70 by the guide 70, with respect to the guide 70. In other words, the extension 60 is arranged, according to the direction Y70, between the two walls 72, to be held in position in this direction, and is arranged, along the direction Z70, between the cover 71 and the bridge 73, to be held in position in this direction. The extension 60 is flat against the cover 71 and against the bridge 73.

Preferably, as seen on the figure 5 , each wall 72 has tabs 81, here two per wall 72, to improve the guiding of the sliding of the extension 60. Each tab 81 extends in the same plane as the bridge 73. From the wall 72 concerned, each tab 81 projects parallel to the direction Y70, in the direction of the opposite wall 72. Along the direction Z70, the tabs 81 are arranged opposite the cover 71, while nevertheless being offset with respect to the orifice 79. The tabs 81 thus contribute to guiding the sliding of the extension 60 without hindering the passage of the screw 80.

Preferably, the extension 60 comprises an oblong orifice 61, called the “main oblong orifice”, which crosses the extension 60 right through in the direction Z70. The greatest length of the oblong orifice 61 extends parallel to the direction X70. For a substantial part of the sliding stroke of the extension 60, the oblong orifice 61 falls in front of the orifice 79, that is to say that the oblong orifice 61 is aligned with the orifice 79 in the direction Z70. In other words, for several positions of the extension 60 relative to the guide 70 parallel to the direction X70, part of the orifice 61 is aligned with the orifice 79, in the direction Z70. Thus, the screw 80 successively passes through the orifice 79 and the orifice 61, without preventing the sliding movement of the extension 60, the oblong orifice 61 sliding around the screw 80. Thanks to the screw 80, cooperating with longitudinal ends of the orifice 61, the extension 60 is advantageously limited in its sliding stroke.

As seen on the figure 6 , the movable part 24 of the fitting 22 is in the extension of the extension 60, along the direction X70 when the latter is mounted on the edge 21. The extension 60 is precisely intended to extend the movable part 24. In the direction X70, the extension 60 comprises an end 62, called the "drive end", via which the extension 60 comes to bear, in the direction X70, against an end 38 of the movable part 24 of the fitting 22. For example, as can be seen in the figures, the end 62 forms a bearing surface which extends perpendicularly to the direction X70. Thus leaning against the extension 60, the mobile part 24 is mobile with the extension 60 with respect to the guide 70, the edge 21 and the fixed part 23. The mobile part 24 carrying with it the extension 60, the extension 60 reflects the position of the mobile part 24. No other support is provided between the mobile part 24 and the extension 60. The extension 60 is not fixed, nor even attached, to the mobile part 24 but is simply supported in the direction X70.

Preferably, the extension 60 comprises an oblong orifice 63, called “secondary oblong orifice”, which crosses the extension 60 right through in the direction Z70. Orifice 63 is placed between orifice 61 and end 62. The longest length of oblong orifice 63 extends parallel to direction X70. For a substantial part of the sliding stroke of the extension 60, the oblong orifice 63 falls opposite one of the orifices 31 of the fixed part 23, that is to say that the oblong orifice 63 is aligned with this orifice 31 in the direction Z70. In other words, for several positions of the extension 60 relative to the guide 70 parallel to the direction X70, part of the orifice 63 is aligned with this orifice 31, in the direction Z70. Thus, the screw 32 successively passes through this orifice 31 and the orifice 63, without preventing the sliding movement of the extension 60, the oblong orifice 63 sliding around the screw 32. Thanks to the screw 32, cooperating with the longitudinal ends of the orifice 63, the extension 60 is advantageously limited in its sliding travel.

The position detector 9 comprises a feeler rod 91 and a housing 92, which supports the feeler rod 91.

The detector 9 is configured to be fixed on the edge 21, via the casing 92, so that the casing 92 is fixed relative to the edge 21. For this, as shown in the figure 6 , the housing 92 is preferably received in a blind bore 39, or knockout, belonging to the upright 26. The bore 39 is formed hollow in the upright 26 in the direction Z70, here from the flanges 29. Here, the bore 39 passes through the bottom of channel 30. In other words, bore 39 and channel 30 are aligned, parallel to direction X70.

In the present example, the box 92 is generally parallelepipedic in shape, being elongated in the direction X70, and narrow in the direction Y70. Housing 92 and bore 39 are complementary in shape. Parallel to direction X70, housing 92 comprises two longitudinal ends 95 and 96. End 95 is turned in direction X70 while end 96 is in the opposite direction. At the end 95, the casing 92 forms a transverse wall, called the front wall or exit wall, which here has the shape of a rounded fillet, to correspond to the shape of the bore 39. At the end 96, the casing 92 includes another transverse wall, or rear wall, similar in shape to the front wall. Housing 92 includes four longitudinal walls, connecting end wall 95 to end wall 96, and extending parallel to direction X70.

As shown on the figure 2 And 3 , when the housing 92 is fixed on the edge 21, the end 95 is turned in the direction of the movable part 24 of the fitting 22, and is in alignment with said movable part 24, parallel to the direction X70.

To be fixed to the edge 21, the box 92 comprises fixing means, which are for example formed by two fixing lugs 97 and 98, each carried by one of the ends 95 and 96. Each lug 97 and 98 advantageously comes in support, parallel to the direction Z70, against a surface of the edge 21. One of the lugs 97 and 98, or each lug 97 and 98, is advantageously fixed using a respective screw, not shown, or any means similar attachment, located in the song 21 in the direction Z70. As seen on the figure 6 , the lug 97 is advantageously devoid of screws and advantageously bears against the bottom of the channel 30, in the opposite direction to the direction Z70, that is to say under the surface of the edge 21 or pinching the bottom of the channel 30. Consequently, the box 92 is attached to the edge 21 by the ear 97. In this case, provision is made for advantageously fixing the lug 98 by screw or similar fixing means. Depending on the frame, a different method of fixing can be provided for the same box 92. It is also possible to provide for the box 92 to include other means of fixing on the edge than those of the present example, including in particular a system of riders or bridles.

Rod 91 passes through an opening provided at end 95 of housing 92, so as to be partly outside housing 92 and partly inside. Rod 91 includes a feeler end, which is outside of housing 92 and visible on the figure 2 And 3 , and a rear end, which is inside the housing 92 and is therefore not visible in the figures. Rod 91 is movable relative to housing 92, sliding parallel to direction X70. This sliding is guided by the casing 92, in particular by the opening provided at the end 95. Provision is made for the detector 9 to be positioned so that the position of the sensing rod 91 with respect to the casing 92 reflects, at all times, the position of the movable part 24 with respect to the fixed part 23 of the fitting 22, so that the detector 9 can detect the current position of the movable part 24 by detecting the current position of the feeler rod 91.

When the detector 9 and the extension device 6 are mounted on the edge 21, the feeler end of the rod 91 comes to rest, in the direction X70, against the extension 60. In other words, the extension 60 is interposed between the part mobile 24 and the feeler end of the rod 91, parallel to the longitudinal direction X70. The extension 60 therefore serves as an extension for the feeler rod 91, in order to reach the movable part 24 and to link the position of the movable part 24 to that of the feeler rod 91 parallel to the longitudinal direction X70. Via the extension 60, the position of the feeler rod 91 reflects that of the movable part 24.

More precisely, the extension 60 is in the extension of the rod 91, in the direction X70. The extension 60 aims precisely to extend the rod 91 to link it to the movable part 24. Opposite the end 62, in the opposite direction of the direction X70, the extension 60 comprises an end 64, called the "detection end". “, through which the feeler end of the rod 91 bears against the extension 60 in the direction X70. For example, as can be seen in the figures, the end 64 forms a bearing surface which extends perpendicularly to the direction X70. The extension device 6 therefore serves as an adapter, to allow the detector to feel the position of the movable part 24 of the fitting 22, whereas, without the extension device 6, it would have been difficult or even impossible to correctly install the detector 9 on this frame, since the movable part 24 of the fitting 22 is difficult to access, in particular because it is covered by the fixed part 23, and set back in the direction X70 with respect to the fixed part 23. The interposition of the extension device 6 advantageously avoids having to design another detector, the rod of which would have a shape specifically designed for fitting 22.

Advantageously, the detector 9 comprises a spring, which is received inside the housing 92, and which exerts a spring force on the rod 91, bearing on the housing 92, tending to move the rod 91 in the X70 direction relative to the housing 92. By "spring force" is meant an elastic return force generated under the effect of an elastic deformation of the spring, to return to its rest position. For example, the spring is a compression spring interposed parallel to the direction X70 between the internal rear end of the rod 91 and an internal bearing wall belonging to the housing 92. The spring keeps the rod 91 bearing against the extension 60 along the direction X70, which also presses the extension 60 against the movable part 24 along the direction X70. Advantage is therefore taken of this spring equipping the detector 9 to secure the mobile part 24, the extension 60 and the rod 91 in the direction X70, so that it is not necessary to attach together the mobile part 24, the extension 60 and rod 91 to link their position along direction X70.

As a variant, provision could be made to attach the extension 60 to the rod 91 and/or to the movable part 24 of the fitting 22 to link their position along the direction X70, in particular in the case where the detector 9 does not include such a spring,

To detect the position of the rod 91 relative to the housing 92, the detector 9 comprises on-board electronic means, which are received inside the housing 92. The electronic means comprise for example a position sensor system, including a witness under the form of a permanent magnet, carried by the rear end of the rod 91 and one or more Hall effect sensors which return an electrical state which varies according to the position of the indicator, and therefore according to the rod. Of course, any other sensor system can be provided instead of or in addition to it.

The electronic means further comprise an electronic analyzer, as well as an electronic transmitter. The electronic means advantageously comprise an electronic card, such as a printed circuit, carrying surface components and/or integrated circuits to form the analyzer and the electronic transmitter, and carrying, optionally, part of the sensor system, here the hall effect sensors.

The electronic analyzer is an electronic system, comprising for example a processor implementing a computer code stored on a memory, these elements being here formed by the surface components of the electronic card. Functionally, the analyzer is designed to determine the longitudinal position of the movable part 24 of the fitting 22, on the basis of the state of the sensor system, here on the basis of the values taken by the respective states of the Hall effect sensors detecting the indicator carried by the rod 91. For this, the sensor system is electronically connected to the analyzer. On this basis, the electronic analyzer generates information on the position of the rod 91 relative to the housing 92, which depends on the position of the rod 91, and therefore reflects the position of the movable part 24.

The transmitter is an electronic system, comprising for example a processor implementing a computer code stored on a memory, these elements being here formed by the surface components of the electronic card. The transmitter comprises for example a wireless transmitter, such as a radio transmitter comprising an antenna, designed to transmit the position information of the rod 91, supplied by the electronic analyzer, to a third-party device, distinct from the detector 9, and positioned outside the box 92, even at a distance from the frame. The third-party device can include a display, an interface, or any similar means, aimed at informing a user of the current functional position of the mobile part 24 of the fitting 22, based on the position information.

If needed, a more detailed example of a detector which is suitable for this application is described in the application FR3102787A1 .

Note that, in the configuration of the figure 7 , the extension 60 is not in the same position relative to the guide 70, relative to the position of the extension 60 on the figures 2-6 , which illustrates the ability of the extension 60 to slide along the guide 70.

As seen in particular on the figure 4 , it is provided that, for at least one position of the extension 60 in its sliding relative to the guide 70 in the direction X70, the end 62 protrudes from the guide 70 in the direction X70, and the end 64 protrudes from the guide in the opposite direction of the X70 direction. In the example, the end 62 protrudes from a longitudinal end of the guide 70 formed by the bridge 73 and the low walls 72, in the direction X70. On the other hand, end 64 protrudes from end 77. In other words, along direction X70, guide 70 is shorter than extension 60. For this purpose, provision is made for a length of extension 60 to be equal to least 1.2 times, or even at least 1.5 times, for example 1.8 times a length of the guide 70. of the guide 70 at the same time, to allow the recovery of the movement of the movable part 24 by the drive end 62 and the detection of the position of the movable part 24 via the detection of the position of the detection end 64. Preferably, when the device 6 is mounted on the frame, the two ends 62 and 64 thus protrude, for any position of the movable part 24, or at least for the locking and unlocking positions of the frame by the movable part 24. The ends 62 and 64 thus protruding, it is easy to position the device 6 so that said ends 62 and 64 bear against the movable part 24 and on the rod 91 over the entire travel of the movable part 24. This makes it possible in particular to position the drive end 64 against the movable part 24, including when the latter is hidden under the fixed part 23, while freely disposing of the detection end 64 protruding with respect to the guide 70 in order to be able to detect the position of this detection end 64. This prevents in particular that the mobile part 24, or the rod 91, when THE ur size is large, are likely to collide with the guide 70. By "length of the extension", is meant a distance measured parallel to the direction X70, connecting the end 62 to the end 64. By "length of the guide", means a distance measured parallel to the direction X70, connecting the opposite longitudinal ends of the guide 70.

For all embodiments of figure 7 et seq., the identical reference signs refer to characteristics identical to those of the other embodiments, or having the same function. From one embodiment to another, reference signs of the same value but increased by one hundred are used to designate similar characteristics, or of the same function, but which are in a different form.

There figure 7 shows a second embodiment, with the extension device 6 identical to that of the figures 1 to 6 , associated with another fitting 122, which is identical to fitting 22, except for the following differences.

The fixed part 123 of the fitting 122 differs from the fixed part 23 only in that the fixed part 123 has two pairs of low walls 140 and 141, whereas the fixed part 23 does not include such low walls and is generally flat in shape. The pairs of low walls 140 and 141 are distributed along the fixed part 123, in the direction X70. Each pair of low walls 140 and 141 form two guide tabs, sometimes called “punctured”, which project in the direction Z70. The two low walls 140 are aligned along the direction Y70, and, in this direction, extend on either side of the movable part 24, to ensure its guidance in translation parallel to the direction X70. Indeed, the walls 140 limit the movement of the movable part 24 parallel to the direction Y70. Similarly, the low walls 141 are aligned along the direction Y70, and, in this direction, extend on either side, either of the extension 60, or of the movable part 24 depending on their position. along the direction X70, determined by the current configuration of the fitting 22. When the movable part 24 is received in between the two low walls 141, these low walls contribute to ensuring the guiding of the movable part in translation parallel to the direction X70, like the walls 140. On the figure 7 , the movable part 24 is in a position where it is the extension 60 which is arranged between the low walls 141.

Due to the presence of the low walls 141, it would have been difficult to design a detector whose sensing rod could be received between the low walls 141 to reach the mobile part 24 without being hindered in its movement. The extension device 6 makes it possible to solve this technical problem, in that it is easier to conceive that the extension 60 has an appropriate shape, to be received between the low walls 141, without impeding its mobility in the direction X70.

Moreover, if the detector 9 embeds a spring producing a spring force holding the rod 91 bearing in the direction X70 against the extension 60, it is not mandatory to provide a clip between the mobile part 24 and the extension 60, so that it is particularly easy to conceive that the extension 60 is thin enough not to be hindered in its movement by said low walls 141.

There figure 8 shows a third embodiment, with an extension device 206, which is identical to the extension device 6 of the figures 1 to 7 , except for the following differences. For extender device 206, extender 260 replaces extender 60, and is identical to extender 60 except for the following differences. Instead of the drive end 62 provided for the extender 60, the extender 260 has a drive end 262, which performs the same functions and is arranged similarly to the drive end 62, except that the end 262 carries a permanent magnet 265. In other words, the extension device 206 comprises a permanent magnet 265, which is carried by the extension 260, here at the drive end 262. The magnet 265 is fixed to the extension 260 and is therefore movable with the extension 260.

In the case where the mobile part 24 is metallic, the magnet 265, carried at the drive end 262, has the main function of maintaining contact in the direction X70, between the end 38 of the part 24 and the extension 260, to ensure that the extension 260 is movable with the movable part 24. The fact of providing a permanent magnet 265 is more compact than providing another mode of attachment, making the extension 260 more versatile and adaptable many types of fittings. Indeed, the magnet 265 can be inserted into the extension, for example by being force-fitted and/or held by teeth in a recess provided at the end of the extension. 260, without the magnet 265 exceeding the dimensions of the extension 260 in the directions X70 or Z70. Providing that the support is maintained by the magnet 265 is particularly useful in the case where the position detector is not equipped with a spring maintaining the support of the extension and of the rod against the mobile part 24, or if this spring provides an insufficient force to ensure this maintenance.

Alternatively or additionally, a magnet (not shown) similar to magnet 265 is carried by the sensing end of the extender. In the same way as the magnet 265, it can be inserted into the extension, for example by being force fitted and/or held by teeth in a recess provided at the end of the extension 260, without the magnet exceeds the dimensions of the extension 260 in the directions X70 or Z70. This magnet can be used to detect the position of the moving part 24 by a position detector different from the detector 9, and the detection of which is carried out using sensors able to detect the magnet remotely thanks to the electromagnetic field, in particular a sensor without a sensing rod. In operation, it is therefore demarcated from the fixed fitting and therefore more easily detectable. According to this design, the extension device is suitable both for the detector 9 with sensing rod, and/or for this other type of position detector. The magnet therefore increases the versatility of the extension device. The position detector different from the detector 9 can in this case of application be mounted on the fixed frame 1 of the frame.

There figure 9 shows a fourth embodiment, including an extension device 306, which includes a guide 370 and an extension 360. figure 9 also shows a fixed part 323 of a bracket 322. Except for the fixed part 323, the bracket 322 is identical to the bracket 22 and includes the movable part 24, which is not shown in the figure. figure 9 . The fixed part 323 is identical to the fixed part 23, except that the longitudinal end 338 of the fixed part 323 is farther from the orifice 31 than is the longitudinal end 38, parallel to the direction X70 .

In the example, the extension 360 forms a flat part in a plane parallel to the directions X70 and Y70, and which is elongated in the direction X70. The extension 360 is of generally rectangular shape in this plane. Like the extension 60, the extension 360 slides parallel to the direction X70 with respect to the fixed part 323 and to the guide 370, being interposed, along the direction Z70, between the feeler rod 91 of the detector 9, which bears against the detection end 64 of the extension 360, and the movable part 24 of the fitting 322, which bears against the drive end 62 of the extension 360.

The extension 360 comprises an oblong orifice 363, which crosses the extension 360 right through in the direction Z70. The longest length of the oblong orifice 363 extends parallel to the direction X70. For a substantial part of the sliding stroke of the extension 360, the oblong orifice 363 falls opposite the orifice 31 of the fixed part 323 of the fitting 322, that is to say that the oblong orifice 363 is aligned with hole 31 in direction Z70. A screw 380, or a similar fixing member, successively passes through the orifice 31 and the orifice 363, and is implanted in the guide 370 to fix the guide 370 to the fixed part 323, as explained below. The arrangement of the oblong orifice 363 means that the sliding of the extension 360 parallel to the direction X70, relative to the guide 370 and to the fixed part 323 is not prevented by the screw 380, the oblong orifice 363 sliding around screw 380.

Preferably, the extension 360 does not have the oblong orifices 61 and 63 described above, and comprises only the oblong orifice 363.

For this embodiment, the oblong orifice 363 forms the connection to guide the sliding of the extension 360. To this end, the guide 370 comprises a guide pin 382, which crosses the oblong orifice 363 parallel to the direction Z70. Guide 370 also includes a base 383, from which guide 370 projects in the opposite direction to direction Z70. The extension 360 is arranged between the base 383 and the fixed part 323 of the fitting 322 in the direction Z70. Preferably, the base 383 is a flat part in a plane parallel to the directions X70 and Y70, and can for example rest on the flanges 29 belonging to the edge 21, so that the positioning of the guide 370 is ensured, and, in particular , or locked in rotation around an axis parallel to the direction Z70.

Ultimately, the extension 360 is guided in sliding in that its displacement is limited parallel to the direction Z70 by the fixed part 323 and by the base 383, and in that its displacement is limited parallel to the direction Y70 by cooperation of the oblong orifice 363 with the guide stud 382. Around an axis parallel to the direction Z70, the extension 360 is prevented in rotation by complementarity of the oblong orifice 363 and of the stud 382, in that the stud is elongated or oblong in the direction X70.

Preferably, the guide 370 is fixed to the edge by means of the screw 380, which is implanted in the guide 370, in particular in the stud 382, in the direction Z70.

Given the fact that the guide 370 is thin in the direction Z70, it is advantageously provided that the guide 370 includes two deformable fins 384, at the top of the stud 382, to reinforce the implantation of the screw 380 in the guide 370 and The clothe of the fixing of the guide 370 on the fixed part 323. The fins 384 evolve between an initial configuration, shown on the exploded view of the figure 9 and on detail 9A of the figure 9 , where the fins 384 protrude in the opposite direction of the direction Z70, having a reduced radial size to be able to pass through the orifice 31, and protrude therefrom in the opposite direction of the direction Z70. As shown in detail 9B of the figure 9 , the implantation of the screw 380 in the stud 382 through the orifice 31 deforms the fins 384 to a deployed configuration, where the fins 384 are folded down radially, so that the end of each fin 384 is hooked on the edge of the orifice 31 by being pressed against it by the head of the screw 380. In the folded-down configuration, one end of each fin 384 bears on the fixed part 323, so that the fixed part 323 is sandwiched between the end of the fin 384 and the stud 382. In the folded-down configuration, the fins 384 thus form an anchor, which securely hooks the guide onto the fixed part 323 of the fitting 322.

As a variant, one can provide a single deformable fin 384, or a number of fins 384 other than two.

Any feature described for one of the embodiments or a variant above can be implemented in any other embodiment or variant described above, as far as technically possible.

Claims (11)

Extension device (6; 206; 306) for a frame, the extension device (6; 206; 306) being characterized in that it comprises: • a guide (70; 370), which is configured to be fixed on an edge (21) belonging to the frame; And • an extension (60; 260; 360), which is slidably mounted on the guide (70; 370), parallel to a longitudinal direction (X70) of the extension device (6; 206; 306), the extension (60; 260 360) comprising a detection end (64) and a drive end (62), opposite in the longitudinal direction (X70), the extension (60; 260; 360) being able to be positioned, relative to the guide (70; 370), so that the drive end (62) and the detection end (64) each simultaneously protrude from the guide (70; 370) in the longitudinal direction (X70), the extension (60; 260 ; 360) being configured to bear against a movable part (24) of a fitting (22; 122; 322) belonging to the frame via the drive end (62), in the direction longitudinal (X70). Extension device (6; 206), according to claim 1, in which the guide (70) comprises a cover (71), along which the extension (60; 260) slides and which comprises a fixing hole (79), configured to be traversed by a first fixing member (80), in a depth direction (Z70), perpendicular to the longitudinal direction (X70), in order to fix the guide (70) to the edge (21). Extension device (6; 206), according to claim 2, in which the extension (60; 260) comprises a main elongated hole (61), which is designed to be axially aligned with the fixing hole (79) for several positions of the extension (60; 260) in the longitudinal direction (X70), so as to be able to slide while being traversed by the first fixing member (80), when the first fixing member (80) is received in the orifice fixing (79). An extension device (6; 206) according to claim 3, wherein the extension (60; 260) comprises a secondary elongated orifice (63), which is disposed between the main elongated orifice (61) and the drive end (62), the secondary oblong orifice (63) being configured to be traversed by a second fixing member (32), in the direction of depth. Extension device (6; 206) according to any one of Claims 2 to 4, in which the cover (71) comprises a bearing end (75), in the direction longitudinal (X70), through which the cover (71) is intended to come into axial abutment against a fixed part (23; 123) belonging to the fitting (22; 122). An extension device (6; 206) according to any one of claims 2 to 5, wherein the guide (70) comprises: • two walls (72), which project from the cover (71), in the direction of depth, the extension (60; 260) being received between the two walls (72) so that the sliding of the extension (60; 260 ) either guided by the two low walls (72); And • a bridge (73), which connects the two low walls (72) to each other and which faces the cover (71), the extension (60; 260) being received between the bridge (73) and the cover (71) to that the sliding of the extension (60; 260) is guided by the cover (71) and the bridge (73). Extension device (6; 206) according to claim 6, in which the bridge (73) is offset with respect to the fixing orifice (79) parallel to the longitudinal direction (X70), so that the first member fastener (80) extends adjacent to the bridge (73) when the first fastener (80) is received in the fastener hole (79). An extension device (206) according to any preceding claim, wherein the extension device (206) comprises a permanent magnet (265), which is carried by the extension (260). Detection system, comprising: • the extension device (6; 206; 306) according to any one of the preceding claims; And • a position detector (9), which is configured to detect the translational position of the extension relative to the guide, in the longitudinal direction (X70), in particular the position of the detection end (64) of the extension. Detection system according to Claim 9, in which, in order to detect the translational position of the extension relative to the guide, the position detector (9) comprising a sensing rod (91), which bears against the detection end ( 64) of the extension (60; 260; 360) in the longitudinal direction (X70), so that the feeler rod (91) and the extension (60; 260; 360) are movable together parallel to the longitudinal direction (X70). Frame, comprising: • the detection system according to any one of claims 9 or 10; • a frame (1); • an opening (2), which is movably mounted on the fixed frame (1) between an open position and a closed position; • the edge (21), which belongs to the sash (2) or to the frame (1), the extension device (6; 206; 306) being fixed on the edge (21) via the guide (70 370), so that the longitudinal direction (X70) is parallel to the edge (21); And • the fitting (22; 122; 322), which is carried by the edge (21) and which includes the movable part (24).

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