Thermal and / or acoustic insulation kit for sliding leaf

Abstract

A thermal and / or acoustic insulation kit for a door or window (4) provided with a sliding leaf (5) comprises a drop-down seal device (1) and an activation baseplate (2). The drop-down seal device is suitable for being fixed to the base of the sliding leaf and is provided with a control protrusion suitable for being engaged by the activation baseplate, which is fixed to the floor beside the drop-down seal device. The activation baseplate (2) and the control protrusion are provided with magnetic coupling means suitable for generating a magnetic field that tends to mutually attract the control protrusion (22) and the activation baseplate (2).

Description

"THERMAL AND / OR ACOUSTIC INSULATION KIT FOR SLIDING LEAF"DESCRIPTION

[0001] The present invention relates to a thermal and / or acoustic insulation kit applicable to a leaf of a door or window, in particular a door or window of the sliding leaf type .

[0002] Devices are already known which are installed at the base of the hinged leaf of a door to thermally and / or acoustically insulate two environments separated by the door . These devices are also colloquially called "dropdown seals" .

[0003] Such devices generally comprise a sealing element fixed to a support movable in height between a raised inactive position and a lowered working position, wherein it is placed in contact with the floor .

[0004] For its movement , the movable support is fixed to a parallelogram-shaped articulation mechanism provided with an activation button which, protruding from the leaf , is pressed by the door frame into a forward position when the leaf is closed, thereby causing a rotation of the parallelogram-shaped articulation mechanism and thus the descent of the movable support .

[0005] For the return of the movable support to the raised position, the drop-down seal device is usually provided with return springs that counteract the action of thebutton .

[0006] Such an embodiment of the drop-down seal device is not , for example, applicable to all sliding doors lacking a lock that keeps the door closed, since the return springs would cause the activation button to return to a position protruding from the leaf and thus prevent the door from being kept in the fully closed position . The effect of the drop-down seal device would thus be completely nullified .

[0007] In WO2020183387A1 , in the name of the same Applicant , a drop-down seal kit is described which is also applicable to sliding doors or windows lacking a lock . The kit consists of a drop-down seal device applicable to the base of the sliding leaf and of an activation baseplate to be fixed to the floor on one side of the drop-down seal device . The mechanical interaction between the drop-down seal device, which translates together with the leaf , and the activation baseplate causes the lowering and the raising of the movable support which carries the sealing gasket . In particular, the drop-down seal device interacts with a hooking plate of the activation baseplate . Said hooking plate is configured to snap-rotate between an inactive position and an active position wherein it stops and retains a movable slider of the drop-down seal device .

[0008] Such a kit , however, suffers from certain limitations and drawbacks .

[0009] Indeed, sliding doors are increasingly widespread in which the leaf , when translating in particular from the opening position to the closing position, is slowed down near the closing position so as to avoid strong impacts against the door jamb with consequent rebounds , without requiring accompaniment by the user . It has been experienced that sometimes the slowed leaf fails to overcome the friction force that causes the snap rotation of the hooking plate and therefore does not reach the end of stroke . On the other hand, by reducing the friction force, the opposite effect would be obtained when the leaf must be brought back to the open position : the movable slider of the drop-down seal device would not be stopped by the hooking plate, thus preventing the raising of the movable support .

[0010] Therefore, the drop-down seal kit known from WO' 387 is not applicable with the same effectiveness and reliability to all types of sliding doors .

[0011] In any case, the presence of the hooking plate with snap rotation makes the activation baseplate rather bulky and its production and assembly complex and costly .

[0012] Moreover, for each drop-down seal device, one baseplate must be provided for the right side and onebaseplate for the left side .

[0013] The object of the present invention is to propose a thermal and / or acoustic insulation kit of the above- mentioned type, therefore particularly for sliding doors or windows , but capable of overcoming its drawbacks and limitations .

[0014] Said object is achieved with a kit according to claim 1 . The dependent claims describe preferred embodiments of the invention .

[0015] The features and advantages of the kit according to the invention will however become apparent from the description below of preferred embodiments thereof , provided by way of non-limiting example, with reference to the accompanying figures , in which :

[0016] - Figure 1 is a perspective view, in transparency, of an example of a sliding door provided with the thermal and / or acoustic insulation kit according to the invention, in a configuration in which the sliding leaf is in the backward opening position of the door ;

[0017] - Figure 2 is a top plan view of the kit , without the external support section bar, in a configuration in which the sliding leaf is near the forward closing position of the leaf ;

[0018] - Figure 3 is a side view of the kit , with the dropdown seal device in the resting configuration;

[0019] - Figure 4 is a perspective view of the drop-down seal device in the resting configuration and of the support section bar, separated from one another ;

[0020] - Figure 5 is an enlarged view of an end portion of the drop-down seal device in the resting configuration;

[0021] - Figure 6 is a perspective view of a portion of the kit , with the drop-down seal device in an active configuration, in which the sealing gasket is in the lowered position;

[0022] - Figure 7 is an enlarged view of the end portion of the drop-down seal device of figure 6, in active configuration, without the external support section bar and the gasket holder section bar;

[0023] - Figure 7a is a view analogous to the preceding one, in which the movable element is housed in the respective gasket holder section bar, and in which the external support section bar is shown in partial section;

[0024] - Figure 8 is a perspective view of a portion of the kit , without the external section bar, in an initial step of the translation of the leaf towards the backward opening position;

[0025] - Figures 8a and 8b are perspective and axial sectional views of a portion of the kit in an alternative embodiment , with the movable element in the raised and lowered position, respectively;

[0026] - Figure 9 is a side view of the portion of the kit shown in figure 8 ;

[0027] - Figure 9a is an enlarged view of the end portion of the drop-down seal device of figures 8 and 9 ;

[0028] - Figure 10 is an enlarged perspective view of the proximal portion of the kit , with the drop-down seal device engaged by the activation baseplate ;

[0029] - Figure 11 is an enlarged top plan view of the end portion of the kit , with the drop-down seal device in the disengagement step from the activation baseplate ;

[0030] - Figures 12 and 12a are two cross-sections of the drop-down seal device in the resting and working configurations , respectively;

[0031] - Figures 13 and 13a are two perspective views of the activation baseplate in an alternative embodiment , in an unlocked and locked configuration, respectively; and

[0032] - Figures 14 , 14a and 14b show three steps of the installation procedure of a sliding leaf door provided with the thermal and / or acoustic insulation kit according to the invention and with the activation baseplate of figures 13 and 13a .

[0033] In said drawings , the reference number 500 denotes as a whole a thermal and / or acoustic insulation kit (hereinafter, for simplicity of exposition, also simply "kit" ) for a door or window 4 provided with a slidingleaf 5 . The sliding leaf 5 is translatable in a rectilinear manner along a translation axis X between a backward opening position of the door or window 4 and a forward closing position of the door or window .

[0034] For the sake of simplicity, in the following description reference will be made to a horizontal translation axis X for the translation of the sliding leaf 5 and to a floor as the abutment surface to achieve the thermal and / or acoustic insulation .

[0035] Furthermore, in the following description, the terms "front" and "rear" will also be used with reference to the direction of translation of the sliding leaf 5 when it moves from the backward opening position of the door or window passage to the forward closing position of the passage .

[0036] The person skilled in the art may in any case apply the technical teaching described below, possibly with the necessary adaptations , not only to other types of doors , but also to windows or hatches in which the sliding leaf 5 moves along a vertical axis and the abutment surface is a vertical wall .

[0037] The kit 500 comprises a drop-down seal device 1 , suitable for being fixed to the base of the sliding leaf 5 , and an activation baseplate 2 , suitable for being fixed to the floor beside the drop-down seal device 1 .

[0038] In a general embodiment , the drop-down seal device 1 comprises a support section bar 10 suitable for being fixed to the base of the sliding leaf 5 , a trigger slider 12 and a movable element 16 .

[0039] The trigger slider 12 is housed with the possibility of axial sliding in the support section bar 10 .

[0040] The trigger slider 12 , at one of its ends , forms , or is provided with, a control protrusion 22 which extends transversely with respect to the translation axis X .

[0041] In one embodiment , the control protrusion 22 may be formed or mounted so as to protrude either from the right side of the drop-down seal device or from the left side thereof .

[0042] In one embodiment , the trigger slider 12 is a rodshaped element extending predominantly in a direction parallel to the translation axis X .

[0043] The movable element 16 is connected to the trigger slider 12 and is movable vertically with respect to the trigger slider 12 between a raised resting position and a lowered working position .

[0044] The movable element 16 is therefore the component which, through it s displacement to the lowered position, causes the interaction between the drop-down seal device 1 and the floor, so as to block the air passage between the base of the sliding leaf 5 and the floor .

[0045] For this purpose, the movable element 16 forms at its lower part , or supports , a sealing gasket 20 suitable for abutting against the floor .

[0046] The displacement between the raised position and the lowered position of the movable element 16 is caused by a relative displacement between the support section bar 10 and the trigger slider 12 , as will be described later .

[0047] In one embodiment , the movable element 16 is connected to the trigger slider 12 by means of a parallelogram-shaped articulation mechanism 18 .

[0048] Moreover, the movable element , when in the raised resting position, is translationally integral with the support section bar 10 .

[0049] The activation baseplate 2 , in use, is suitable for acting as an axial stop element for the control protrusion 22 when the sliding leaf 5 is close to the forward position coming from the backward position .

[0050] In accordance with one aspect of the invention, the control protrusion 22 and the activation baseplate 2 are provided with magnetic coupling means suitable for generating a magnetic field that tends to mutually attract the control protrusion 22 and the activation baseplate 2 .

[0051] The intensity of the magnetic field is chosen so that , when the sliding leaf 5 begins the translation fromthe forward position to the backward position the trigger slider 12 remains temporarily engaged with the activation baseplate 2 until the translation of the support section bar 10 with respect to the trigger slider 12 has caused the lifting of the movable element 16 .

[0052] In one embodiment , the control protrusion 22 is in the form of a plate extending in a plate plane perpendicular to the translation axis X .

[0053] In one embodiment , one of the control protrusion 22 and the activation baseplate 2 has at least one portion made of a ferromagnetic material 222 . The other one of the control protrusion 22 and the activation baseplate 2 supports a magnet 224 facing said portion made of a ferromagnetic material .

[0054] In the example shown in the drawings , the control protrusion 22 supports a metal bar 222 , while the activation baseplate 2 supports a magnet 224 , for example a neodymium magnet .

[0055] In a preferred embodiment , the activation baseplate 2 has axial symmetry with respect to a baseplate axis Y parallel to the translation axis X .

[0056] In this way, the same activation baseplate 2 can be installed on either side of the drop-down seal device 1 .

[0057] In one embodiment , the support section bar 10 comprises two housings 10a, 10b placed side by side andextending parallel to the translation axis X . A first housing 10a is suitable for accommodating at least the trigger slider 12 and the movable element 16 ; the second housing 10b is suitable for accommodating the activation baseplate 2 , so as to conceal it from view and protect it from external agents . The support section bar 10 may also serve as a guide for the sliding door or window .

[0058] In one embodiment , the trigger slider 12 is translatable in a respective longitudinal seat 14 formed in the support section bar 10 .

[0059] Moreover, the trigger slider 12 and the longitudinal seat 14 may form respective complementary shaped portions which prevent other movements of the trigger slider 12 , for example in the vertical direction .

[0060] The movable element 16, when in the raised resting position, is connected to the support section bar 10 so as to translate integrally therewith during the closing step of the sliding leaf 5 , as will be described later .

[0061] In one embodiment , the movable element 16 comprises a pair of movable arms 162 parallel to the trigger slider 12 . Each movable support arm 162 is connected to the trigger slider 12 by means of a respective articulation lever 182 .

[0062] In one embodiment , the movable arms 162 are housed in a movable gasket holder section bar 24 to which thesealing gasket 20 is fixed, or which itself forms the sealing gasket 20 .

[0063] In one embodiment , the drop-down seal device 1 comprises a releasable retaining member 30 configured to retain the movable element 16 in the raised position when the sliding leaf 5 is in the backward opening position and during the translation towards the forward closing position . Moreover, the retaining member 30 is configured to release the movable element 16 when the trigger slider 12 is locked by the activation baseplate 2 , and to return the movable element 16 to the raised position when the sliding leaf 5 is pushed towards the opening position .

[0064] In particular, the releasable retaining member 30 comprises a first clamp 302 translationally integral with the support section bar 10 and a second clamp 304 translatable within the support section bar 10 between a first member closing position and a second member opening position .

[0065] For example, the retaining member 30 is placed in continuation of the trigger slider 12 so as to share the same seat in the support section bar 10 and thus be constrained to the section bar in the vertical direction .

[0066] The movable element 16 is provided with a first hooking appendage 164 which extends substantially in the vertical direction between the two clamps 302 , 304 , so asto be retained between the two clamps 302 , 304 when the retaining member 30 is closed to keep the movable element 16 in the raised resting position . When the retaining member 30 is opened, as will be described later, the movable element 16 is free to move to the lowered working position .

[0067] In one embodiment , the two clamps 302 , 304 are connected to one another by connecting means 306 suitable for applying a connection force which, in the absence of an external force acting on at least one of the two clamps greater than said connection force, during the translation of the support section bar 10 keeps the two clamps at a mutual distance determined by said external force .

[0068] In other words , if the retaining member 30 is closed, it remains closed during the translation of the sliding leaf 5 , until an external force— specif ically the reaction force exerted on the second clamp 304 by the hooking appendage 164 when the trigger slider 12 is locked by the activation baseplate 2 , causes the retraction of the second clamp 304 and thus the opening of the retaining member 30 .

[0069] Similarly, if the retaining member 30 is open, for example because the sliding leaf 5 is in the passage closing position, it remains open when the sliding leaf 5begins its return stroke towards the opening position of the passage, until a reaction force is exerted on the second clamp 304 that exceeds the connection force, for example when the second clamp 304 comes into abutment against the trigger slider 12 while the latter is still locked by the activation baseplate 2 , as will be described later .

[0070] In one embodiment , the connecting means 306 comprise a sliding guide extending from the first clamp 302 , on which the second clamp 304 slides . The connection force can be obtained as a friction force between the second clamp 304 and the sliding guide .

[0071] In one embodiment , the first clamp 302 is constrained to the support section bar 10 by means of a pair of first stop teeth 308 made, for example, as bent tabs in the support section bar 10 .

[0072] In one embodiment , the support section bar 10 also forms at least one second stop tooth 310 , for example also made as one or more bent tabs , suitable for limiting the translation of the second clamp 304 from the first position to the second position .

[0073] It should be noted that, since the retaining member 30 is placed in continuation of the trigger slider 12 , i . e . , axially aligned with the latter, the first stop teeth 308 and the second stop tooth 310 also perform afunction of axial dragging of the trigger slider 12 by the support section bar 10 when the sliding leaf 5 translates between the backward opening position and the forward closing position .

[0074] In one embodiment , the hooking appendage 164 ends at its upper part with a hooking beak 166 suitable for being inserted between the two clamps 302 , 304 when the retaining member 30 is open, and which forms an undercut into which the first clamp 302 engages when the retaining member is closed, preventing the lowering of the movable element 16 .

[0075] As mentioned above, the movable element 16 is returned to the raised inactive position by the closure of the retaining member 30 itself immediately after the beginning of the translation of the sliding leaf 5 towards the opening position .

[0076] In one embodiment , the surface of the first clamp 302 facing the hooking appendage 164 is shaped so as to form a lifting cam 303 , for example an inclined plane, suitable for causing the lifting of the hooking appendage 164 between the two clamps 302 , 304 when the first clamp 302 interacts with the hooking appendage 164 in the lowered position .

[0077] Moreover, as previously mentioned, the hooking appendage 164 is suitable for engaging the second clamp304 to cause its translation into the second position .For example, the hooking appendage 164 has a rear surface, i . e . , facing the second clamp 304 , which is substantially flat and suitable for resting against the second clamp 304 . For example, in order to reduce the sliding friction between the hooking appendage 164 and the second clamp 304 during the lowering of the movable element 16, the hooking appendage 164 rests against a lower beak 305 of the second clamp 304 .

[0078] In one embodiment , the movable element 16 comprises a second hooking appendage 168 , for example extending vertically from the rear movable arm 162 , insertable by press-fit , i . e . , with calibrated interference, or with forced shape coupling, into an appendage seat 122 formed in the trigger slider 12 . This coupling between the second hooking appendage 168 and the appendage seat 122 contributes to retaining the movable element 16 in the raised position, in combination with the retaining member 30 , which acts distally, i . e . , at the front , on the movable element 16 . The interference between the second hooking appendage 168 and the appendage seat 122 is in any case selected so as to allow the disengagement of the second hooking appendage 168 when the trigger slider 12 is locked by the activation baseplate 2 .

[0079] In an alternative embodiment illustrated in figures8a and 8b, the second hooking appendage 168 and the appendage seat 122 are configured to achieve mutual magnetic coupling instead of mechanical coupling . For example, the second hooking appendage 168 is made of , or supports , a permanent magnet or a ferromagnetic element 168 ' , and the appendage seat 122 is made of , or supports , a ferromagnetic element or a permanent magnet 122 ' . The magnetic coupling generated by the permanent magnet ( s ) is such as to ensure the retention of the movable element 16 in the raised position when the second hooking appendage 168 is in contact with the appendage seat 122 (Figure 8a) ; at the same time, since there are no friction forces between the two elements , the magnetic coupling facilitates the release of the second hooking appendage 168 from the appendage seat 122 when the trigger slider 12 is locked by the activation baseplate 2 (Figure 8b) .

[0080] In one embodiment , the activation baseplate 2 comprises a fixed part 212 , suitable for being anchored to the abutment surface, and a movable part 214 carrying the magnet 224 or the ferromagnetic element 222 .

[0081] The movable part 214 is suitable for translating with respect to the fixed part 212 along an adjustment direction parallel to the translation axis X . For this purpose, the activation baseplate 2 is provided with an adjustment device 216, for example a screw, suitable foradjusting the distance between the fixed part 212 and the movable part 214 so as to consequently adjust the stroke in the vertical direction of the movable element 16 . Indeed, the greater the distance between the two parts of the activation baseplate 2 ( in particular, the closer the part with the magnet 224 or the ferromagnetic element 222 , which interacts with the control protrusion 22 , moves toward the backward position) , the greater the relative displacement between the section bar 10 and the trigger slider 12 , and hence the greater the opening permitted to the parallelogram-shaped articulation mechanism (and thus the greater the height excursion of the movable element 16 ) .

[0082] In one embodiment illustrated in figures 13-13a and 14-14b, the activation baseplate 2 comprises a baseplate body 242 , for example in the form of a parallelepiped, carrying the respective magnetic coupling means , for example the magnet 224 or the ferromagnetic element 222 , and an anchoring plate 240 , suitable for being fixed to the floor, for example by means of screws 2401 . The baseplate body 242 is suitable for being releasably coupled to the anchoring plate 240 .

[0083] This anchoring plate 240 is configured so as to form a coupling rail 244 extending along a coupling direction parallel to the translation axis X .

[0084] The baseplate body 242 has a lower portion 246 configured to engage, with shape coupling and in a slidable manner along the coupling direction, with the coupling rail 244 . For example, the coupling rail 244 is formed by a channel 2442 delimited by two lateral walls 2444 bent inward toward the inside of the channel 2442 . The lower portion of the baseplate body 246 is shaped as a "dovetail" , i . e . , as an inverted "T" . In this way, the lower portion of the baseplate body 246 can be inserted into the channel 2442 and is axially guided and vertically retained by the lateral walls 2444 .

[0085] Moreover, the baseplate body 242 is provided with axial locking means 250 operable, for example by an installer, to axially lock the baseplate body 242 to the anchoring plate 240 after the baseplate body 242 has been coupled to the anchoring plate 240 .

[0086] For example, the axial locking means 250 comprise a locking screw 252 having a head 252a protruding from the baseplate body 242 , for example on the opposite side from the magnetic coupling means , thus facing the door passage, so as to be easily accessible to the installer . The locking screw 252 has a stem 252b provided with a radial stop element 252c suitable for engaging a slot 244 ' formed in the coupling rail 244 , for example in at least one of the lateral walls 2444 of the coupling rail244 .

[0087] The locking screw 252 is rotatable, for example by means of a screwdriver, for instance by 180 ° , between an inactive unlocking position, in which the radial stop element 252c is disengaged from the slot 244 ' , allowing the axial translation of the baseplate body 242 (Figure 13 ) , and an active locking position, in which the radial stop element 252c axially engages the slot 244 ' , preventing the axial translation of the baseplate body 242 (Figure 13a) .

[0088] In one embodiment , the baseplate body 242 comprises a first baseplate body portion 242a and a second baseplate body portion 242b coupled to one another in the axial direction, i . e . , along the coupling direction parallel to the translation axis X, by means of an adjustment device 260 , for example a screw, suitable for adjusting the axial distance between the first baseplate body portion 242a and the second baseplate body portion 242b so as to consequently adjust the stroke in the vertical direction of the movable element 16 .

[0089] For example, the first baseplate body portion 242a is integral with the axial locking means 250 and is therefore suitable for being locked to the anchoring plate 240 , while the second baseplate body portion 242b is translatable with respect to the first baseplate bodyportion 242a along the coupling rail 244 by operating the adjustment device 260 .

[0090] This embodiment of the activation baseplate 2 is particularly advantageous during the installation step of the sliding leaf 5 . Indeed, as shown in figure 14 , it is possible to conveniently fix the anchoring plate 240 to the floor before installing the sliding leaf 5 in the respective frame .

[0091] Once the anchoring plate 240 has been fixed, the sliding leaf 5 provided with the drop-down seal device 1 can be installed . The anchoring plate 240 , having a substantially planar shape, does not hinder the installation of the sliding leaf 5 , which can slide over the anchoring plate 240 (Figure 14a) . It should be noted that the anchoring plate 240 is fixed to the floor in such a way that the coupling rail 244 is centred with respect to the baseplate seat , i . e . , the second compartment 10b, formed in the support section bar 10 of the drop-down seal device 1 .

[0092] At this point , the installer can connect the baseplate body 242 to the anchoring plate 240 by axially inserting the lower portion 246 of the baseplate body 242 into the coupling rail 244 and subsequently operating the axial locking means 250 (Figure 14b) .

[0093] Returning now to the interaction between the controlprotrusion 22 and the activation baseplate 2 , it should be noted that the magnetic attraction force between the control protrusion 22 and the activation baseplate 2 is chosen so as to allow, during the return step of the leaf to the backward opening position, the abutment of the second clamp 304 against the trigger slider 12 to achieve the closure of the retaining member 30 and the movement away of the second stop tooth 310 , which is integral with the support section bar 10 , from the second clamp 304 . However, this magnetic attraction force must not be too high so as not to excessively hinder the opening of the leaf by the user .

[0094] The operation of the kit is as follows .

[0095] When the leaf is in the backward opening position, at least partial , of the door or window ( figures 2-5 ) , the drop-down seal device 1 is completely disengaged from the activation baseplate 2 . The movable element 16 is in the raised inactive position .

[0096] The retaining member 30 is closed and is abutting against the distal end of the trigger slider 12 .

[0097] The second clamp 304 is in the forward position, i . e . , it is spaced from the second stop tooth 310 . This configuration derives from the previous translation of the leaf from the forward closing position to the backward opening position .

[0098] When the leaf is made to slide toward the forward closing position, just before reaching the end-of-stroke position, the trigger slider 12 is intercepted, through its control protrusion 22 , by the activation baseplate 2 . The trigger slider 12 therefore stops its movement .

[0099] The movable element 16, which is connected to the trigger slider 12 by means of the parallelogram-shaped articulation mechanism, is then placed under tension . Since the support section bar 10 continues its translation toward the forward end-of-stroke position, the retaining member 30 , still closed, advances with respect to the trigger slider 12 .

[0100] At this point , the hooking appendage 164 , being under tension as it is connected to the trigger slider 12 axially locked by the activation baseplate 2 , exerts on the second clamp 304 a reaction force that overcomes the connection force between the two clamps 302 , 304 , which then open, allowing the release of the hooking appendage 164 .

[0101] The forward translation of the support section bar 10 with respect to the trigger slider 12 , resulting in the opening of the retaining member 30 , also causes the opening of the articulation mechanism, i . e . , the rotation of the articulation levers , and therefore the lowering of the movable element 16 and of the relativesealing gasket 20 ( figures 6-7a) .

[0102] When the leaf is pushed towards the backward opening position, the magnetic coupling between the activation baseplate 2 and the control protrusion 22 initially keeps the trigger slider 12 axially locked .

[0103] In this initial step of the leaf opening action, the translation of the support section bar 10 with respect to the trigger slider 12 causes the upward movement of the hooking appendage 164 along the first clamp 302 , which acts as a cam, until the hooking beak of the appendage rises above the two clamps 302 , 304 , which in this initial step are still open .

[0104] When the second clamp 304 comes into abutment against the distal end of the trigger slider 12 ( figures 8-9a) , which is still locked by the magnetic coupling with the activation baseplate 2 , the further translation of the support section bar 10 causes the closure of the retaining member 30 and the movement away of the second stop tooth 310 from the second clamp 304 .

[0105] In this way, the starting condition of the drop-down seal device 1 is restored and the further movement of the leaf towards the backward position is sufficient to overcome the magnetic field force, and thus cause the disengagement of the trigger slider 12 from the activation baseplate 2 .

[0106] It should be emphasized that , during the return step of the leaf towards the opening position of the door or window, the movable element 16 rises to the raised inactive position thanks to the retaining member 30 , which acts as a lifting cam, and to the balance between the forces involved, in particular the magnetic field force between the control protrusion and the activation baseplate 2 and the connection force between the two clamps of the retaining member 30 .

[0107] This allows to avoid the use of springs or other return elements for the upward movement of the movable element , which cannot be used in the case of sliding doors or windows , particularly those without a lock .

[0108] The interaction between the trigger slider 12 and the activation baseplate 2 , based on a magnetic field of appropriately calibrated intensity, allows to simplify the structure and overall dimensions of the kit , in particular of the activation baseplate 2 . This aspect of miniaturisation of the activation baseplate 2 is particularly important since the activation baseplate 2 , being placed beside the drop-down seal device, must have minimal impact on the dimensions of the section bar, in particular its transverse size, which is fixed to the base of the leaf .

[0109] Advantageously, during the door or window closing step, the trigger slider 12 simply comes into abutment against the activation baseplate 2 , and therefore a very low force is required to cause the lowering of the movable element 16 towards the floor, unlike the kit according to the known technique, which uses an activation baseplate with a hooking plate provided with a rotation pin that must allow its snap rotation . Therefore, the drawback related to the use of the kit on sliding doors with dampened closing is completely resolved .

[0110] In terms of production and assembly, once the correct intensity of the magnetic field has been established, the activation baseplate that uses a magnetic coupling system with the control portion of the drop-down seal device is much simpler to manufacture and assemble than the baseplate according to the above- mentioned known technique .

[0111] The symmetrical shape of the activation baseplate allows it to be positioned on either side of the drop-down seal device . I f the control protrusion of the drop-down seal device extends asymmetrically towards only one side of the drop-down seal device, in order to use the same kit with the activation baseplate positioned on the opposite side, it will be sufficient to mount thecontrol protrusion on the trigger slider rotated by 180 ° .

[0112] The kit according to the invention is therefore advantageous in terms of procurement and warehouse management of its components .

[0113] Compared to the kit with an activation baseplate with mechanical stop, the kit according to the invention is more reliable over time, since the mechanical stop with snap-rotatable plate is more subject to malfunctions due to wear of the moving parts and / or due to the penetration of dirt , dust or other external agents into the rotation system . Clearly, an activation baseplate operating with a magnetic coupling system is more immune to these potential causes of malfunction and therefore will require much less maintenance or none at all .

[0114] To the embodiments of the kit according to the invention, a person skilled in the art may make modifications , adaptations and replacements of elements with others functionally equivalent , in order to meet contingent needs , without departing from the scope of the following claims . Each of the features described as belonging to a possible embodiment may be implemented independently of the other embodiment s described .

Claims

CLAIMS1. A thermal and / or acoustic insulation kit for a door or window (4) provided with a sliding leaf (5) , the sliding leaf being translatable along a translation axis (X) between a backward opening position of the door or window and a forward closing position of the door or window, comprising a drop-down seal (1) suitable for being fixed to the base of the sliding leaf and an activation baseplate (2) suitable for being fixed to the floor next to the drop-down seal, wherein the drop-down seal (1) comprises:- a support section bar (10) suitable for being fixed to the base of the leaf (5) ;- a trigger slider (12) accommodated with possibility of axial sliding in the support section bar (10) , wherein the trigger slider (12) , at one end thereof, forms, or is provided with, a control protrusion (22) extending transversely with respect to the translation axis (X) ;- a movable element (16) connected to the trigger slider (12) and movable vertically with respect to the trigger slider between a raised resting position and a lowered working position due to a relative displacement between the support section bar (10) and the trigger slider (12) ; wherein, in use, the activation baseplate (2) is suitable for forming an axial stop element for the controlprotrusion (22) when the sliding leaf is close to the forward position translating from the backward position; and wherein the control protrusion (22) and the activation baseplate (2) are provided with magnetic coupling means suitable for generating a magnetic field which tends to mutually attract the control protrusion (22) and the activation baseplate (2) , the magnetic field intensity being chosen so that, when the sliding leaf begins the translation from the forward position to the backward position, the trigger slider (12) remains temporarily engaged with the activation baseplate (2) until the translation of the support section bar (10) with respect to the trigger slider has caused the movable element (16) to be lifted.

2. Kit according to claim 1, wherein the control protrusion (22) is in the form of a plate extending in a plate plane perpendicular to the translation axis (X) .

3. Kit according to claim 1 or 2, wherein one of the control protrusion (22) and the activation baseplate (2) has at least one portion made of a ferromagnetic material (222) , and wherein the other of the control protrusion and the activation baseplate supports a magnet (224) facing said portion made of a ferromagnetic material.

4. Kit according to any one of the preceding claims, wherein the activation baseplate (2) has an axialsymmetry with respect to a baseplate axis parallel to the translation axis (X) .

5. Kit according to any one of the preceding claims, wherein the movable element (16) is connected to the trigger slider (12) by means of a parallelogram-shaped joint mechanism (18) .

6. Kit according to any one of the preceding claims, wherein the movable element (16) , when in the raised resting position, is translationally integral with the support section bar (10) .

7. Kit according to any one of the preceding claims, wherein the drop-down seal (1) comprises, within the support section bar, a retaining member (30) switchable between a retaining configuration, in which it keeps the movable element (16) in the raised resting position, and a release configuration, in which it allows the movable element (16) to take the lowered working position.

8. Kit according to claim 7, wherein the retaining member (30) comprises a first clamp (302) translationally integral with the support section bar (10) and a second clamp (304) translatable in the support section bar (10) between a first member closing position and a second member opening position, and wherein the movable element (16) is provided with a first hooking leg (164) substantially extending in the vertical direction betweenthe two clamps (302, 304) , so as to be retained between the two clamps when the retaining member (30) is closed to keep the movable member in the raised resting position, the movable element being free to move to the lowered working position when the retaining member is open .

9. Kit according to claim 8, wherein the two clamps (302, 304) are connected to each other by connecting means (306) suitable for applying a connection force which, in the absence of an external force acting on at least one of the two clamps being greater than said connection force, during the translation of the support section bar (10) keeps the two clamps (302, 304) at a mutual distance established by said external force.

10. Kit according to claim 8 or 9, wherein the support section bar (10) forms a stop tooth (310) suitable for limiting the translation of the movable clamp (304) from the first position to the second position.

11. Kit according to any one of the preceding claims, wherein the movable element (16) forms or supports a sealing gasket (20) suitable for coming into contact with the floor when the movable element is in the lowered working position.

12. Kit according to any one of the preceding claims, wherein the activation baseplate comprises a fixed part(212) and a movable part (214) suitable for engaging the control protrusion, the movable part being suitable for translating with respect to the fixed part along an adjustment direction parallel to the leaf translation axis, the baseplate being provided with an adjustment device (216) , for example a screw, suitable for adjusting the distance between the fixed part and the movable part of the baseplate so as to adjust the stroke in the vertical direction of the movable element.

13. Kit according to any one of the preceding claims, wherein the activation baseplate (2) comprises an anchoring plate (240) , suitable for being fixed to the floor, and a baseplate body (242) carrying the respective magnetic coupling means and suitable for being releasably coupled to the anchoring plate (240) , the anchoring plate (240) being configured to form a coupling rail (244) extending along a coupling direction parallel to the translation axis (X) , the baseplate body (242) having a lower portion (246) configured to engage, with shape coupling and in a slidable manner along said coupling direction, with the coupling rail (244) .

14. Kit according to claim 13, wherein the baseplate body (242) is provided with axial locking means (250) operable to axially lock the baseplate body (242) to the anchoring plate (240) .

15. Kit according to claim 14, wherein said axial locking means (250) comprise a locking screw (252) having a head (252a) protruding from the baseplate body (242) so as to be accessible by an installer, and a stem (252b) provided with a radial stop element (252c) suitable for engaging a slot (244' ) formed in the coupling rail (244) , the locking screw (252) being rotatable between an inactive unlocking position, in which the radial stop element (252c) is disengaged from the slot (244' ) , allowing the axial translation of the baseplate body (242) , and an active locking position, in which the radial stop element (252c) axially engages the slot (244' ) , preventing the axial translation of the baseplate body (242) .

16. Kit according to any one of claims 13-15, wherein the baseplate body (242) comprises a first baseplate body portion (242a) and a second baseplate body portion (242b) coupled to one another along the coupling direction parallel to the translation axis (X) by means of an adjustment device (260) suitable for adjusting the axial distance between the first baseplate body portion (242a) and the second baseplate body portion (242b) .

17. Kit according to any one of the preceding claims, wherein the support section bar (10) comprises two housings placed side by side and extending parallel tothe translation axis, a first housing (10a) suitable for accommodating at least the trigger slider (12) and the movable element (16) , a second housing (10b) being suitable for accommodating the activation baseplate.

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