Position detector for the joinery of a door or window

Abstract

A position detector for a door, window, or similar joinery comprises at least one first housing (35) that is mounted on the frame (7) or the sash (9) of the joinery. This first housing (35) has an active face (31). The detector further comprises a fast-acting electrical switch (371) equipped with a mechanical control (377). This switch (371) is housed in the first housing (35), at a distance from the active face (31). The detector also comprises a magnetic actuator (39), disposed in the first housing (35), between the switch (371) and the active face (31). This magnetic actuator (39) is arranged to react in the presence of an external permanent magnet near and opposite the active face (31) by actuating or releasing the mechanical control (377) of the switch (371). (Fig. 2)

Description

Title of the invention: Position detector for the joinery of a door or window

[0001] The invention relates to a position detector for the joinery of a door, a window or the like, and more particularly to a detector of the type comprising at least a first housing, which is mounted on the frame or the opening of the joinery and has an active face, and a fast-acting electrical switch, equipped with a mechanical control and housed in the first housing, at a distance from the active face.

[0002] Detectors of this type are quite commonly used, particularly when it comes to indicating the open or closed state of a door, window, or similar opening. This may be the case, in particular, when monitoring such a state for fire protection purposes. In the field of fire safety, it is indeed important to know whether the door, window, or similar opening is in a safe position with respect to fire, especially after an alarm has been triggered. This position may correspond to an open state, typically when the door or window plays a role in the evacuation of people, such as an emergency exit, or a closed state, when the door or window is used to slow the spread of fire and / or smoke, such as a fire door.

[0003] These position detectors are designed to react to the presence, or absence, of a moving element of the joinery, such as the opening of a window or door, near a fixed element of that joinery, such as the frame or the jamb of the window or door, by emitting a characteristic electrical signal. They are used to enable centralized or remote monitoring of an entire building, particularly buildings intended for public access.

[0004] Because they are intended to act as safety devices, the aim is generally to design position detectors that are robust, reliable, and energy-efficient, or even passive. Devices capable of operating with the switching capacities involved are also sought, particularly for integration into a building's security system.

[0005] For example, ball contact detectors are known and quite widely used, particularly with fire doors. A ball contact comprises a housing with an active face for detection and a fast-acting electrical switch, also called a microswitch in the technical field, equipped with a mechanical control and housed within the housing. The housing is mounted on a component of the door or window frame, generally the frame, such that its active face is opposite a corresponding component of the same frame, generally the sash. The housing also houses a ball, or similar, in the vicinity of the active face. This ball is mechanically linked to the control of the micro-switch.

[0006] When the window or door is in the open position, with no opening part, the ball protrudes from the active face of the housing, while the microswitch actuator is in a rest position, free of constraint, corresponding to the microswitch's normal switching state. When the window or door is closed, the opening part presses on the ball and, in doing so, constrains the microswitch's mechanical actuator via the ball. This results in a different switching state of the microswitch, or the activated state.

[0007] Ball contacts are generally satisfactory, as evidenced by their widespread use. However, these contacts have a drawback in that they are sensitive to the quality of the contact between the ball and the opening. This contact can be impaired, particularly in the event of play, deformation of the opening, or the presence of foreign bodies between the ball and the opening, such as dirt. Contacts of this type are also subject to fouling in the vicinity of the ball, which can hinder the ball's movement when in contact with the opening.

[0008] To overcome these drawbacks, magnetic contacts are known to be used, particularly in dusty or humid environments. For example, magnetic contacts are known in which the housing incorporates a Reed or Hall effect contact, sealed against dust and water in a glass tube. Actuation is contactless, achieved by a permanent suction cup. The contact can, for example, be embedded or mounted in the frame, while the suction cup is fixed or recessed onto / into the sash. When the window or door is closed, the suction cup acts on the contact (closed contact). If the window or door is opened beyond a detection range, the contact is broken (open contact).

[0009] To operate at the required breaking capacities, particularly in the case of a building open to the public, magnetic contacts are associated with control electronics and, therefore, must be powered. This complicates the integration of such contacts into a building's fire safety system and compromises their reliability and robustness. Consequently, such contacts are effectively prohibited in fire safety applications.

[0010] The invention aims to improve the situation.

[0011] A position detector for the joinery of a door, window, or similar device is proposed, comprising at least a first housing that is mounted on the frame or sash of the joinery, this first housing having an active face, and a fast-acting electrical switch equipped with a mechanical control, this switch being housed in the first housing, at a distance from the active face. The detector further comprises a magnetic actuator, disposed in the first housing. between the switch and the active face, this magnet actuator being arranged so as to react in the presence of an external permanent magnet near and opposite the active face by an actuation or a release of the mechanical control of the switch.

[0012] The proposed detector is based on a fast-acting electrical switch, also known as a microswitch in the technical field, whose electrical state change, resulting from actuation, leads to continuity or, conversely, a discontinuity in the monitoring circuit to which the switch is connected. Such a switch is capable of operating without a power supply. It is considered reliable and robust. Furthermore, it is compatible with the breaking capacities required for integration into the fire monitoring system of an entire building.

[0013] In that it provides for the actuation or release of the mechanical control of the switch by means of a magnetic actuator reacting in the presence of an external permanent magnet, the detector offers the same advantages as the switch on which it is based. Because the magnetic actuator is arranged to react to the presence of a nearby external permanent magnet, the proposed detector can also operate without requiring contact between the frame and the sash of the window or door. In other words, in the proposed detector, the electrical switch is actuation without the need for contact between any part external to the housing and the magnetic actuator. This allows for reliable and efficient use of the detector, even in potentially dusty or dirty environments. In particular, the proposed detector can be installed before plastering or painting without risk of damage.In this respect, the proposed detector differs greatly from ball contacts.

[0014] The proposed detector is contactless operated although based on a mechanically actuated switch.

[0015] The proposed detector is notably compatible with the French standard NF S61-937, in its currently valid version.

[0016] Additional, complementary or alternative features of the invention are stated below.

[0017] The magnet actuator comprises at least one part integral with a permanent magnet internally, this part is mounted in the first housing in a movable manner, between a first position where the part is at a distance from the mechanical control of the switch and a second position where the movable part actuates this mechanical control.

[0018] The part in question can be moved from the first position to the second, or from the second position to the first, by the effect of mutual attraction or repulsion of the external permanent magnet and the internal permanent magnet.

[0019] The part in question is also movable from the second position to the first, or from the first position to the second, by gravity or under the effect of an elastic return element.

[0020] The magnet actuator includes a slide free to translate inside the first housing between a rest position where the slide is at a distance from the mechanical control and a position where the slide is in contact with this mechanical control and the latter is actuated.

[0021] The magnet actuator includes at least one elementary permanent magnet and the slide has a housing adapted to this elementary permanent magnet.

[0022] The slider has an end face with a contact surface, this contact surface being adapted for the mechanical control of the switch.

[0023] The slider also has a second end face, opposite to the first, and the elementary permanent magnet is located near this second end face.

[0024] The first housing comprises a first elongated and hollow part, inside which is housed the switch and at least part of the magnet actuator, and a second part with a plug function for the first part.

[0025] The magnet actuator is mounted at least in part in the second part which functions as a plug.

[0026] The detector further comprises at least one second housing which is mounted on the opening or fixed part of the joinery, this second housing having an active face, and the second housing contains at least one permanent magnet disposed near the active face of this second housing.

[0027] The permanent magnet is mounted in the second housing by means of an adjustment device, which can be actuated to modify a position of the permanent magnet relative to the active face of the second housing.

[0028] Other features and advantages of the invention will become apparent from an examination of the detailed description below, and the accompanying drawings, in which: - [Fig.1] represents a position detector according to the invention, seen in perspective; - [Fig.2] represents a longitudinal cross-sectional view of a contact part of the detector of [Fig.1], in the isolated state; - [Fig.3] represents a longitudinal cross-sectional view of a magnet part of the detector of [Fig.1], in the isolated state; - [Fig.4] represents a longitudinal cross-sectional view of the contact part of [Fig.2], installed in a joinery element; - [Fig.5] represents a longitudinal cross-sectional view of the detector from [Fig.1], installed in a joinery and in an initial state of operation; - [Fig.6] is analogous to [Fig.5], the detector being in a second state of operation.

[0029] The accompanying drawings contain elements of a definite nature. They can therefore not only serve to complete the invention, but also contribute to its definition, if necessary.

[0030] Figure 1 shows a position detector 1, intended in particular for the joinery of a door, window, or similar structure. In particular, detector 1 is capable of signaling the presence, or absence, of at least one part of an opening element of the joinery opposite and near a corresponding part of a fixed element of that joinery. Therefore, detector 1 is suitable for signaling a closed or open state of the joinery. More generally, detector 1 can be used to signal the presence of any moving element opposite and near any fixed element, such as the presence of the opening leaf of a door opposite and near a fixed leaf or the frame of that door, or of another moving element, such as the presence of one leaf opposite and near the other in a double-leaf door.For example, detector 1 can be usefully fitted to a fire door, in order to signal the open or closed state of this door to a fire safety system or similar.

[0031] The detector 1 consists of a contact function block 3, shown in the upper part of [Fig.1], and a magnet function block 5, shown in the lower part of this [Fig.1].

[0032] The contact 3 has an elongated shape. The contact 3 has a first face, or front face 375, here opposite the magnet block 5, and a second face, or rear face 33, opposite the front face 31 along a longitudinal direction of the contact 3. Here, the magnet block 5 also generally has an elongated shape. The magnet block 5 has a first face, or front face 51, here opposite the contact 3, and a second face, or rear face 53, opposite the front face 51 along a longitudinal direction of the magnet block 5.

[0033] In [Fig.1], the contact 3 and the magnet block 5 are in a relative position such that the front face 31 of the contact 3 and the front face 51 of the magnet block 5 are opposite and close to each other.

[0034] [Fig. 2] shows contact 3 of [Fig. 1] alone. This contact 3 comprises a housing 35. Here, this housing 35 includes a first hollow and elongated part, shaped here into a socket 351. A rear end of the socket part 351 of the housing 35 corresponds to the rear face 33 of the contact 3. This socket part 351 has an internal space 353 which opens onto a front end of this part.

[0035] The housing 35 has a second part with a plug function 355, adapted to the socket part 351, in particular to the front end of this part 351. This part cap 355 is fixedly mounted on the socket part 351, at the front end of the latter, here by clipping for example.

[0036] The plug portion 355 of the contact 3 has at least one insert-shaped portion 357, which is received in the internal space 353 of the socket portion 351, and by means of which this plug portion 355 is mounted onto the socket portion 351. The insert portion 357 has an external shape that corresponds to the internal space 353 of the socket portion 351 of the housing 35, at least in the vicinity of the latter's front end. The insert portion 357 of the plug portion 355 extends over a length such that this portion provides a long guide for the socket portion 351 on the plug portion 355.

[0037] The contact 3 comprises a contact assembly 37, mainly comprising a mechanically actuated, quick-acting electrical switch 371. Such a switch is also called a micro-switch or, more commonly, a micro-interrupter in the technical field. The switch 371 typically has a common pin and one or more switching pins, for example, one pin for "normally open" (NO) operation and one pin for "normally closed" (NC or NC) operation. Here, the contact assembly 37 further comprises a terminal block 373 for the electrical connection of the detector 1 and a PCB-type board 375 through which the pins of the switch 371 are electrically connected to terminals of the terminal block 373.The 371 switch, in particular its electrical characteristics, and more specifically its breaking capacity, is suitable for use with detector 1 in a fire risk monitoring system, notably a system intended for a building open to the public. For example, the microswitch can have a breaking capacity of 5 amps at 250 volts DC.

[0038] The switch 371 is equipped with a control element 377 in the form of a movable part relative to the rest of the switch 371 between a rest, or free, position, corresponding to a first state of the switch 371, for example an open state, and a constrained position corresponding to a second state of the switch 371, for example a closed state. Each movement of the control element 377 from its rest position to its constrained position, and vice versa, causes the switch 371 to switch from one electrical state to another.

[0039] Here, the control element 377 takes the form of a push button. For example, the constrained position of this button corresponds to a depressed position. Alternatively, the control element 377 can also take the form of a lever, a blade, or something similar. The switch 371 is positioned in the socket portion 351 of the contact 3 such that its control element 377 is movable relative to the rest of the switch 371 primarily along the longitudinal direction of this portion.

[0040] The contact 3 further includes a magnet actuator 39, arranged to react to the presence of an external permanent magnet in the vicinity and opposite the front face 31 of the contact 3 by exerting on the control member 377 of the switch 371 a constraint such that this control member 377 adopts its constrained position.

[0041] In particular, the magnet actuator 39 includes a movable part, here made in a slide 391, mounted in the interior space 353 of the socket part 351, between the switch 371 and the plug part 355 of the contact 3. This slide 391 is free to translate in this interior space 353, between a position where the slide 391 rests near the front face 31 of the contact 3, at least when this front face 31 is directed downwards, and a position where the slide 391 butts against the control member 377 of the switch 371, this member then being at least near its constrained, or actuated, position.

[0042] Between its rest position and its stop position, the slide 391 travels along a path free of obstruction, with the exception of the control member 377 of the switch 371. In other words, the switch 371, and in particular its control member 377, are arranged on the path of the slide 391 relative to the internal space 353 of the socket part 351 of the contact 3. Put another way, when it travels along this path, the slide 391 drives the control member 377 from its free position to its constrained position.

[0043] Preferably, the slide 391 is guided in translation within the internal space 353. Here, this guidance includes a planned form cooperation between at least a portion of the outer surface of the slide 391 and the wall of the internal space 353 of the socket portion 351 of the contact 3. For example, the slide 391 here has a guide surface 393 whose shape corresponds to the profile of the internal space 353, at least over a longitudinal portion thereof corresponding to the translation path of the slide 391. This guide surface 393 is supported here by a flange-shaped portion 395 of the slide 391.

[0044] The slide 391 here has a first end face, directed towards the switch 371 and shaped at least in part in a way adapted to contact with the control member 377 of this switch 371. Here, this contact face has a surface at least partially flat 396, suitable for supporting the control member 377 in the form of a push button.

[0045] The magnet actuator 39 further comprises at least one permanent magnet 397 attached to the slide 391 and arranged so as to drive this slide 391 over at least part of its stroke in reaction to the presence of an external magnet near the front face 31 of the contact 3 and opposite it.

[0046] The slide 391 has a second end face, opposite the first along a longitudinal direction of the slide 391. The slide 39 here has a housing 398 adapted to the permanent magnet 397 of the actuator 39. Here, this housing 398 is shaped into an open recess on the second end face of the slide 39.

[0047] The actuator 39 further has a slide 399 adapted to the slide 391 and active on the stroke of this slide 391. This slide 398 contributes to the translational guidance of the slide 391 relative to the internal space 353 of the sleeve portion 35. This slide 399 is made here in the form of a bore whose shape corresponds to that of at least a portion of the slide 391. Here, the slide 399 is provided in the plug portion 355, in particular in the insert portion 357. Here, for example, the slide 399 and the slide 391 are generally cylindrical, at least with respect to the portion of the slide 391 received in the slide 399.

[0048] Here, at the bottom of the bore forming the slide 399, a stop is provided, which is active when the slide 391 is in its rest position. This stop is implemented here in the form of a pin 400 that protrudes from the bottom of the bore in question.

[0049] Fig. 1 shows that the housing 35 of the contact 3 can be provided with a notch (not referenced) which gives access to the terminal block 373 from the rear face 33 of the contact 3. Here, the socket part 351 of this housing 35 is made in at least two parts, namely a partially notched body 3511 and a cover 3513 whose shape corresponds to the essential part of the notched part of the body 3511.

[0050] Here, the plug part 355 of the contact 3 further has a base-shaped portion 359, from which the insert portion 357 of the plug part 355 protrudes. This base 359 is formed here as a flange for the contact 3. In particular, the base 359 has one or more recesses 361 adapted for fastening elements, for example countersunk screws.

[0051] As shown in [Fig. 4], the housing 35 is shaped so that the contact 3 can be embedded in a joinery element, such as the sash or frame of a door, window, or similar. For example, here, the frame 7 of a joinery has a hole 71 of a diameter adapted to the socket portion 351 of the housing 35 of the contact 3 and a counterbore 73 into which the hole 71 opens and whose shape is adapted to the base portion 359 of the housing 35.

[0052] In this [Fig. 4], the contact 3 is positioned substantially vertically relative to the frame 7, meaning that the longitudinal direction of the socket portion 351 of the contact 3 is vertical. The contact 3 is oriented such that its front face 31 is directed downwards. This may be the case, for example, when the contact 3 is installed on a portion of the upper cross member of the frame 7.

[0053] Figure 4 shows that in the absence of an external magnet near and opposite the front face 31 of the contact 3, the slider 391 is in its rest position, at a distance of the control element 377 of the switch 371. This control element 377 is also in its free, or rest, position.

[0054] Fig. 3 shows the magnet block 5 of Fig. 1 alone.

[0055] The magnet block 5 comprises a housing 55 and at least one elementary permanent magnet 57 housed within the housing 55. Here, this housing 55 comprises a socket-shaped portion 551 and a base-shaped portion 553 from which the socket-shaped portion 551 projects towards the rear face 53 of the magnet block 5. The socket-shaped portion 551 has an external shape resembling a straight cylinder. Here, the base 553 is shaped into a flange that allows the magnet block 5 to be fixed to a joinery element, such as the sash or frame of a door, window, or similar object, for example. To this end, the base 553 has one or more recesses 555.

[0056] The housing 55 of the magnet block 5 further includes a recess 557 shaped to accommodate the elementary magnet 57. Here, this recess 557 has the form of a cylindrical bore. Here, the recess 557 for the elementary magnet 57 is open on the front face 51 of the magnet block 5. The elementary magnet 57 is positioned in this recess 557 near the front face 51 of the magnet block 5 and is held in this position by a fastener, here in the form of a screw 59. Here, this screw 59 is received in an orifice 61 provided in the bottom of the socket-shaped portion 551 of the magnet block 5.

[0057] By tightening or loosening this screw 59, the position of the elementary magnet 57 relative to the housing 55 of the magnet block 5 is changed in the longitudinal direction of this housing 55. In [Fig. 3], the elementary magnet 57 has an upper face that is flush with the front face 51 of the magnet block 5. From this flush position, tightening the screw 59 causes the elementary magnet 57 to move relative to the housing 55 such that the upper surface of the elementary magnet 57 is recessed from the front face 51 of the magnet block 5. Conversely, from the flush position in [Fig. 3], loosening the screw 59 causes the elementary magnet 57 to move relative to the housing 55 such that the upper surface of this elementary magnet 57 protrudes from the front face 51 of the magnet block 5.Therefore, the elementary magnet 57 is mounted in the housing 55 of the magnet block 5 by means of an adjustment device consisting of the screw 59 and the orifice 61.

[0058] As shown in [Fig.5], the housing 55 of the magnet block 5 is shaped in such a way that this magnet 5 can be embedded in a joinery element, such as the opening or the fixed part of a door, window or the like, opposite a contact 3 of the type of the contact described in relation to [Fig.1] in particular.

[0059] For example, here, the opening 9 of a joinery has a hole 91 of diameter adapted to the socket part 551 of the housing 55 of the magnet block 5 and a counterbore 93, in which opens the bore 91 and whose shape is adapted to the base portion 553 of this housing 55.

[0060] In the configuration shown in [Fig. 5], the elementary magnet 397 of the contact 3 and the elementary magnet 57 of the magnet block 5 are mounted in the contact 3 and the magnet 5 respectively, such that they are mutually repulsive when the front face 31 of the contact 3 and the front face 51 of the magnet block 5 are facing each other and close to one another. For example, the elementary magnet 57 of the magnet block 5 can be arranged so that its south pole is close to the front face 51 of the magnet block 5, while the elementary magnet 397 of the contact 3 is arranged so that its south pole is close to the front face 31 of the contact 3.

[0061] Fig. 5 shows that in such a configuration, the mutual repulsion of these elementary magnets 397, 57 causes a displacement of the slide 391 from a rest position visible on Fig. 6 to its constrained position, in which the slide 391 actuates the control member 377 of the switch 371. Such a repulsion effect occurs when the contact 3 and the magnet block 5 are at a sufficiently small distance 11 from each other.

[0062] Fig. 6 shows indeed that when the distance 11 which separates the front face 31 of the contact 3 and the front face 51 of the magnet block 5 from each other is greater, the repulsion effect ceases, which causes displacement, here by gravity, of the slide 391 from its constrained position to its rest position, in which the slide 391 is away from the control member 377 of the switch 371.

[0063] Here, the contact 3 is arranged so that its front face 31 is directed downwards. Alternatively, this contact 3 can be arranged so that its front face 31 is directed upwards. The mass of the slide 391 can be sufficient to actuate the control member 377 of the switch 371 in the absence of the magnet block 5, when the front face 31 of the contact 3 is directed upwards. In this case, the elementary magnet 57 of the magnet block 5 and the elementary magnet 397 of the contact 3 are advantageously arranged so as to attract each other. Thus, in the presence of the magnet block 5 in proximity to and opposite the contact 3, the effect of mutual attraction causes the slide 391 to move from its rest position, in which this slide 391 actuates the control member 377 of the switch 371, to a constrained position, in which the slide 371 releases this control member 377.Alternatively, particularly when the mass of the slide 391 is such that it rests against the control member 377 of the switch 371 without actuating it, the elementary magnets 397, 52 can be arranged in mutual repulsion. Thus, the presence of the magnet block 5 opposite and near the contact 3 causes an additional displacement of the slide 391. rest position to a constrained position, in which this slide 391 actuates the control member 377 of the switch 371.

[0064] A device capable of detecting the open or closed position of a door, window, or similar opening has just been described. This device is based on a fast-acting electrical switch equipped with a mechanical control housed in a casing. The device further includes a magnetic actuator that actuates or releases the mechanical control of the switch in response to the presence of an external permanent magnet. The magnetic actuator is also housed in the casing, between the switch and an active face of the casing. This device is contactless.

[0065] The invention is not limited to the embodiment described above, by way of example only, but encompasses all variants that a person skilled in the art could conceive. In particular: - The flanges of the contact and the magnet block are optional; the contact and / or the magnet block can be embedded in their respective joinery element. - The contact can be installed in the opening of the joinery and the magnetic block in the fixed part. - The contact housing and the magnet block housing can be shaped differently. - The individual magnets can be replaced by several magnets in the contact and / or the magnet block. - The magnet block is optional, at least the housing for this block; the permanent magnet can be installed directly in the woodwork. - The ear-shaped portions of the contact housing and the magnet block housing are optional. - A terminal block has been described for the electrical connection of the detector, and in particular of the contact. Alternatively or in addition, the detector may include any means of electrical connection, in particular one or more electrical cables soldered to the terminals of the contact or a male or female part of a quick connector, in particular of the type known by the acronym JST. - The detector, in particular the contact housing or the block housing, can come in different sizes and shapes. - The contact block housing and the block housing can each be made of plastic or metallic material, such as zamak, stainless steel or an aluminum alloy. - A magnet actuator was demonstrated in which the slide is free to translate within the contact block housing. If necessary, at least part of the slide's translational stroke can be controlled by a return mechanism. elastic. Such a component can, in particular, contribute to the return of the slide to its rest position from its stop position. Such a component also allows, if necessary, the adjustment of the force to be applied to the magnet actuator so that the actuator, in turn, actuates the control member of the switch. As an elastic return component, it can be, for example, the return spring that equips the control member of the electrical switch, for the return of the latter from its constrained position to its free position, as in the embodiment illustrated in [Fig. 2]. It can also be an additional, or replacement, spring, in particular interposed between the electrical switch, or its control member, and the slide. In this case, the spring in question can be housed, at least partially, in a recess made in the slide, such as the recess shown (but not referenced) in [Fig. 2].2], and which is open on a face of the slide opposite the permanent magnet. - The contact housing socket can have any diameter. Advantageously, this socket has an outer diameter of approximately 19 millimeters. This allows the contact housing to be installed as a replacement for most existing contacts without having to drill new holes in the woodwork. Figure 2 shows a switch control element in the form of a push button, the end of which is generally flat. This end can also be rounded, ensuring point contact between the control element and the slide. The control element can take various forms, such as a finger or a lever. Using a lever as the control element instead of a button or finger reduces the force the slide must apply to the control element to actuate the switch. This allows the use of less powerful permanent magnets both inside and outside the contact housing. - The detector can advantageously be made available to the installer in such a state that the slide is out of its stop position. This facilitates the adjustment of the detector, as it is then sufficient to position the window / door sash in the closed position relative to the frame and then gradually increase the power of the magnet block from a minimum power until the detector is triggered. The detector just described detects the closed position of a window or door sash relative to the frame, without requiring any contact between the sash and the frame. In this context, this closed position corresponds to a relative limit position of the sash and the frame, where these elements of the window or door are in close proximity, rather than in direct contact. This limit position of proximity corresponds, for example, to a maximum opening angle, typically one or a few degrees.

Claims

Demands

1. Position detector for the joinery of a door, window or the like, of the type comprising: - at least a first housing (35) which is mounted on the frame (7) or the sash (9) of the joinery, this first housing (35) having an active face (31); - a fast-acting electrical switch (371), equipped with a mechanical control (377), this switch (371) being housed in the first housing (35), at a distance from the active face (31); characterized in that it further comprises a magnetic actuator (39), disposed in the first housing (35), between the switch (371) and the active face (31), this magnetic actuator (39) being arranged so as to react in the presence of an external permanent magnet (57) in the vicinity of the active face (31) and opposite it by an actuation or a release of the mechanical control (377) of the switch (371).

2. Detector according to claim 1, wherein the magnet actuator (39) comprises at least one part (391) integral with an internal permanent magnet (397), this part (391) being mounted in the first housing (35) in a movable manner, between a first position where the part (391) is at a distance from the mechanical control (377) of the switch (371) and a second position where the movable part (391) actuates this mechanical control (377).

3. Detector according to claim 2, wherein said part (391) is movable from the first position to the second, or from the second position to the first, by mutual attraction or repulsion effect of the external permanent magnet (57) and the internal permanent magnet (397).

4. Detector according to claim 3, wherein said part (391) is further movable from the second position to the first, or from the first position to the second, by gravity or under the effect of an elastic return member.

5. A detector according to any one of the preceding claims, wherein the magnet actuator (39) comprises a slide (391) free to translate within the first housing (35) between a rest position where the slide (391) is at a distance from the mechanical control (377) and a position where the slide (391) is at contact of this mechanical control (377) and the latter is activated.

6. Detector according to claim 5, wherein the magnet actuator (39) comprises at least one elementary permanent magnet (397) and the slider (391) has a housing adapted to this elementary permanent magnet (397).

7. Detector according to any one of claims 5 and 6, wherein the slider (391) has an end face with a contact surface (396), this contact surface being adapted for the mechanical control (377) of the switch (371).

8. Detector according to claim 7, wherein the slider (391) further has a second end face, opposite to the first, and the elementary permanent magnet (397) is located near this second end face.

9. Detector according to any one of the preceding claims, wherein the first housing (35) comprises a first elongated hollow part (351), inside which is housed the switch (371) and at least a part of the magnet actuator (39), and a second part with a plug function (355) for the first part (351).

10. Detector according to claim 9, wherein the magnet actuator (39) is mounted at least partly in the second plug-function part (355).

11. Detector according to any one of the preceding claims, further comprising at least a second housing (55) which is mounted on the opening (9) or the fixed (7) of the joinery, this second housing (55) having an active face (51), in which the second housing (55) accommodates at least one permanent magnet (57) disposed near the active face (51) of this second housing (55).

12. Detector according to claim 11, in which the permanent magnet (57) is mounted in the second housing (55) by means of an adjustment device (59; 61), actuable to modify a position of the permanent magnet (57) relative to the active face (51) of the second housing (55).