EP1004737A1 - Lifting device for a sash of a door, window or the like - Google Patents

Abstract

The lifting device comprises a lever pivoted on a support plate and able to engage a support stop on the frame. The lever is subjected to a resilient return means (20,21) to cause its tipping into a waiting position in the direction of the stop once the door opens. The resilient return means push back the lever in either one direction (22) or another (23) relative to the support plate. Retractable retaining means (20,21) prevent tipping of the lever so that the elimination or retraction of one of the retaining means causes the tipping of the lever in a specified direction.

Description

The invention relates to a lifting device comprising a lever pivotally mounted on a support plate attached in rebate on the opening frame or the standing frame of a door, window or the like, and adapted to cooperate with a bearing stop arranged in correspondence, as the case may be, on the sleeping frame or said opening frame, to ensure the grip in charge, at least in part, of the weight of the latter at the time to close said door, window or other, said lever being subjected to the impulse of elastic return means for cause it to tilt into a waiting position in direction of the support stop, once the door or window opened.

The present invention will find its application in the field of the building hardware and concerns everything in particular, the devices allowing to resume, partially, the weight of a door leaf when closing this one on its sleeping frame. The invention also relates to anti-tampering devices capable of preventing a locking fitting, of the bolt type or lever-bolt type can be brought into its locked position as long as the opening of a door, window or the like has not been closed on its sleeping frame.

In fact, we will refer, in particular, to the document EP-A-0.735.223 where it has already been described a lifting device corresponding to the description above.

Thus, this device is in the form of a lever mounted tilting at its upper end on a support plate reported in rebate of the front upright of the opening door, window or the like. Elastic return means act on this lever to push it into abutment in a waiting position towards the sleeping frame. All particularly, in rebate of the corresponding amount of this last there is a support stop on which can, precisely, take support of the lower end of the lever, this at the time of closing the door, window or other, for, by rotation effect around its pivot axis on the opening frame, ensure the lifting of the latter and guarantee his engagement, in a suitable position within the framework sleeping.

In the specific case described in this document EP-A-0.735.223, the lever has, at its lower end, a kind of side cut to define a finger positioning intended to favor engagement with the stop of support on the sleeping frame. Of course, the configuration of this support stop is adapted to that of said lever.

In particular, if this support stop is symmetrical configuration, with respect to its median plane horizontal, to allow its adaptation to a door or window opening on the right as on the left, the part of the lifting device attached to the opening frame, know the lever or its support plate, does not have of this faculty. This amounts to saying that the manufacturer must manage the manufacture of lifting devices for a application, on the one hand, on the right and, on the other hand, on the left. In addition, the carpenter must also have in his stocks both types of lifting devices to be able respond to customer demand, not to mention that it must make sure when fitting a carpentry that it receives the correct lifting device.

Furthermore, insofar as, from the outset, the means of elastic return push the lever back into its position waiting, either offset, angularly, relative to the axis longitudinal of the support plate, the storage of these lifting devices are problematic. In addition, once mounted on a joinery their lever defines a protruding part by compared to the chassis plan which makes it particularly vulnerable until the door is mounted on its frame sleeping.

As revealed in document EP-0.735.223, such lifting device can also constitute a device anti-tampering device capable of preventing a fitting from lock can be brought into its position locking as long as the opening of a door or window is not not closed on its sleeping frame. Now, such a conception generates other disadvantages.

In particular, it is necessarily in this position natural waiting, imposed by means of recall elastic, which the lever ensures, through its axis of pivoting through the support plate, locking in translation of an operating rod corresponding to a locking bolt of the lever type or lever-bolt. Through therefore, when it comes to fitting the opening chassis with a carpentry of such a lever or lever-bolt, the operation of the latter can only be tested condition for the operator to return the lever to the extension of the support plate, against the action of the means elastic return. We understand, of course, that this complicates this test maneuver for the operator.

Ultimately, the present invention proposes to remedy to the aforementioned drawbacks through a single lift capable of equipping, indifferently, a door or window opening right or left. In particular, the direction of the impulse communicated to the lever by through elastic return means can be freely chosen by the carpenter in a last operation mounting a frame opening onto its sleeping frame, or even even, only after installation of the door or window in its framing at building level.

To this end, the invention relates to a lifting device comprising a lever pivotally mounted on a support plate reported in rebate on the opening frame or the frame dormant from a door, window or the like, and provided capable of cooperate with a corresponding support stop, as the case may be, on the frame or the opening frame for take care, at least in part, of the weight of this last when coming to close said door, window or other, said lever being subjected to the impulse of means of elastic return ensuring its tilting in a position waiting, in the direction of the support stop, once the door or open window. According to the invention, said return means elastic bands are defined capable of repelling said lever, according to the case, a direction or an opposite direction with respect to said support plate, while two retaining means breakable and / or retractable are provided capable of preventing tilting of the lever, respectively, in one and the other pivot directions so that removing and / or the retraction of one of said retaining means causes the tilting of this lever in a determined direction.

In fact, in the same inventive step, it was imagined that the support plate includes attachment means with which at least one of the ends of the return means cooperates elastic, these fastening means being defined by at least two attachment points which are thus determined on this support plate by causing said end of the elastic return means with one or the other respectively these attachment points result in their stressing causing the lever to tip over in one direction, respectively, in an opposite direction.

According to another embodiment entering the same concept inventive, the elastic return means are presented under shaped like a pin spring with two arms kept slightly under stress between two elements forming a stop associated with the support plate or, with the lever, while the latter or, as the case may be, the support plate receives attachment means capable of cooperating with one or the other side of the spring to ensure tilting lever in one direction or in a direction of direction opposite.

Ultimately, through the three solutions above and which result from the same inventive step, it was imagined elastic return means which, at first, either exert on the lever contrary efforts coming cancel each other or, conversely, have no impulse on the the sink. It is only in the final assembly and assembly phase lock on a carpentry that the operator will be able to force the elastic return means to exercise their action in one direction or the other on the lever, either canceling one of the efforts applied by these recall means elastic on this lever, that is, by coming to constrain them in a defined direction.

Also, the advantages which result from the present invention are many. In particular, to the extent that there is more than one type of lifting device this facilitates their manufacturing management, but also that of their storage, advantage found both at the level of the manufacturer and carpenter. In addition, the lever being maintained, in a first time, in the extension of its support plate, this set is not only less bulky, but also less vulnerable.

Finally, such a lifting device, even if it is assigned the function of anti-misuse device, allows, during the mounting of a locking fitting on an opening, to test the proper functioning of this fitting locking without it being necessary, in parallel, to activate the device to authorize this maneuver.

It will be observed that, according to another characteristic of the present invention, the lever of this lifting device can be equipped with means to adjust its length which allows considerably easier initial settings and later.

Other objects and advantages of the present invention will appear during the description which follows relating to different embodiments.

• la figure 1 est une représentation schématisée d'une fenêtre équipée d'un dispositif de relevage conforme à l'invention ;
• la figure 2 est une représentation schématisée et en élévation d'un dispositif de relevage conforme à un premier mode de réalisation.
• la figure 3 est une représentation schématisée et en élévation d'un dispositif de relevage conçu selon un second mode de réalisation ;
• la figure 4 est une représentation schématisée et en coupe partielle selon IV-IV de la figure 3 ;
• la figure 5 est une représentation en élévation d'un dispositif de relevage conforme à un troisième mode de réalisation, le levier étant, ici, maintenu dans le plan médian longitudinal de sa platine support ;
• la figure 6 est une représentation schématisée et en élévation du dispositif de relevage correspondant à la figure 5, le levier étant maintenu, à présent, dans sa position d'attente sous l'impulsion des moyens de rappel élastiques ;
• la figure 7 est une représentation schématisée et en coupe selon VII-VII de la figure 5 ;
• les figures 8, 10 et 12 correspondent à des représentations schématisées des moyens venant remplir la fonction d'anti-fausse manoeuvre associés au dispositif de relevage illustré sous différentes formes de réalisations dans les figures 2 à 7 ;
• les figures 9, 11, et 13 correspondent à des représentations schématisées et en coupe respectivement des figures 8, 10 et 12.

The understanding of this description will be facilitated by referring to the attached drawings, in which:

• Figure 1 is a schematic representation of a window equipped with a lifting device according to the invention;
• Figure 2 is a schematic representation in elevation of a lifting device according to a first embodiment.
• Figure 3 is a schematic representation in elevation of a lifting device designed according to a second embodiment;
• Figure 4 is a schematic representation in partial section on IV-IV of Figure 3;
• Figure 5 is an elevational representation of a lifting device according to a third embodiment, the lever being, here, maintained in the longitudinal median plane of its support plate;
• Figure 6 is a schematic representation in elevation of the lifting device corresponding to Figure 5, the lever being maintained, now in its waiting position under the impulse of the elastic return means;
• Figure 7 is a schematic representation in section along VII-VII of Figure 5;
• Figures 8, 10 and 12 correspond to schematic representations of the means fulfilling the function of anti-false operation associated with the lifting device illustrated in different embodiments in Figures 2 to 7;
• FIGS. 9, 11, and 13 correspond to schematic representations and in section respectively of FIGS. 8, 10 and 12.

The present invention relates to a lifting device 1 applied, as shown in Figure 1 of the accompanying drawings, to a door, window or the like.

In particular, this lifting device 1 comprises a lever 3 pivotally mounted on an attached support plate 4, as shown in Figure 1 in rabbet 5 of the front upright 6 of the opening frame 7 corresponding to this door or window 2. A in this regard, this support plate 4 can be fixed on a faceplate present in rabbet 5. The lever 3 is all particularly intended to cooperate with a support stop 8 which is provided in rebate 9 of the corresponding amount 10 of the frame 11.

We will already observe that a reverse arrangement is possible, that is to say that the opening frame 7 can receiving the support stop 8, the sleeping frame 11 being equipped, under these conditions, lever 3. However, for better understanding of the description which follows this will relate, more particularly, to the first solution exposed.

Thus, the lever 3 is still subject to the impulse of means of elastic return 12 that the support plate 4 comprises, this to cause it to tilt into a waiting position that we see very particularly shown in Figures 1 and 6 of the attached drawings, this when the door or window 2 is open.

Thus, in this standby position the lever 3, of which the upper end 13 is pivotally mounted, using articulation means 14 around a horizontal axis 15 and parallel to the plane of the opening frame 7, points its end lower 16 towards the frame 11.

Also, when closing this opening frame 7 on said frame 11 this lower end 16 of the lever 3 first meets the support stop 8. At this time and in continuing the movement the opening frame 7 is raised, under the effect of the double rotation of this lever 3, on the one hand, by relative to the articulation means 14 which connect it to the support plate 4 and, on the other hand, from its fulcrum, to its lower end 16, on the support stop 8. This chassis opening 7 can then be integrated, suitably, into a frame sleeping 11.

Advantageously, the lever 3 comprises means 17 allowing to adjust its length. Substantially, these means 17 consist, at its lower end 16, in a part telescopic end 18 adapted to be immobilized in a position determined in relation to lever 3 via clamping means 19.

In fact, the peculiarity of the invention resides in that, in as part of a first embodiment corresponding to the Figure 2, the elastic return means 12 are defined suitable pushing said lever 3, as the case may be, in a direction or in the opposite direction with respect to the support plate 4 on which it is rotatably mounted. In addition, said platinum support 4 comprises two breakable retaining means 20 and 21 and / or retractable provided capable of preventing the tilting of the lever 3, respectively in either direction of pivoting 22, 23 so that the removal and / or the retraction of one of said retaining means 20, 21 causes the tilting of this lever 3 in a determined direction, respectively 22, 23.

Thus, as can be seen in this FIG. 2, said means of elastic reminder 12 can be in the form of a hairpin spring 24, the two branches 25, 26 of which are kept under stress between two lugs of retainers 27, 28 defining the two breakable retaining means 20, 21 and / or retractable, insofar as it suffices to cut one of these retaining pins 27, 28 or even to pass one branches 25, 26 above one of them so that this branch 25 or 26 of the spring 24, coming to rest, then, on a hooking finger, as appropriate, 29, 30 associated with lever 3 push it back in direction 22 or reverse 23.

Note that this still works in the case where the pins breakable and / or retractable 27, 28 are associated with lever 3, the support plate 4 then receiving the hooking fingers 29, 30.

Note the presence of stop means 31 capable of limiting the pivot angle of the lever 3 relative to the plate support 4 whether by rotating clockwise or trigonometric.

According to another conception of the present invention, visible Figures 3 and 4, the support plate 4 comprises means attachment 40 with which one of the 41 is able to cooperate ends 41, 42 of a spiral or helical spring 43 corresponding to the elastic return means 12, the other of which end 42 acts, precisely, on lever 3.

In fact, these attachment means 40 comprise at least two attachment points 44, 45 which are thus determined on the support plate 4 that by connecting said end 41 of the spring 43 with one or other of these attachment points 44, 45 this results in the stressing of said spring 43 having as a consequence of causing lever 3 to tilt in direction 22, respectively, in the opposite direction 23.

In the end, bringing the branch 41 of the spring 43 in cooperation with the attachment point 44 or with the attachment point 45, this results in the stressing of this spring 43 one way or the other so the action of its branch 42 on the lever 3 is not the same.

There are, of course, again, stop means 31 able to limit the angular displacement of this lever 3 by in relation to the support plate 4.

Advantageously and as visible in FIG. 3, these means attachment point 40 also have an attachment point intermediate 46 whose position is determined so that the cooperation of the end 41 of the spring 43 with this point of intermediate attachment 46 comes to neutralize the action of this spring 43 on lever 3. This is then held in the extension of the support plate 4. It is in fact in this configuration that device 1 is delivered to the carpenter, to him to tension the spring 43 so that it acts in the correct direction on the lever 3.

Its design according to Figures 5 to 6 corresponds to the case of figure where the elastic return means 12 are under shape of a pin spring 24A provided with two branches 25A, 26A kept slightly under stress between two elements forming a stop 27A, 28A associated with the support plate 4, while that the lever 3 receives hooking means able to cooperate with one or other of the branches 25A, 26A of the spring 24A in view of the lever 3 tilting in a direction 22 or in the opposite direction 23. Substantially, the means attachment consists of two attachment fingers 29A, 30A, associated with lever 3 on its side 32 opposite the plate support 4.

Thus, initially, these two attachment fingers 29A, 30A are arranged between the branches 25A, 26A, of the spring 24A ensuring the maintenance of the lever 3 in the extension of its support plate 4.

Then, coming to ensure the crossing of one of the fingers attachment 29A arranged on one side of the lever 3, with respect to the branch 25A being located on the same side, this branch 25A in cooperation with this latching finger 29A prevents this lever 3 to return to its original position. In fact, the spring 24A the then maintains in its waiting position.

It will be observed, in particular, that these attachment fingers 29A, 30A are defined in the form of a step, i.e. once one or other of the branches 25A, 26A crossed the maneuver reverse is impossible because of the steps that define, precisely, these hooking fingers 27A, 28A in this position.

It is obvious that the hooking fingers 29A, 30A can be associated with the support plate 4, the lever 3 receiving, then, the elements forming a stop 27A, 28A now slightly stressed the two branches 25A, 26A of spring 24A.

A lifting device 1, according to the invention can, advantageously fulfill the functions of an anti-forgery device operation as part of its application to a fitting locking mechanism of the bolt type or lever-bolt.

In fact, such a bolt or bolt-lock comprises, usually a control mechanism on which the user acts via a handle or a control button, if necessary, again, using a key element. The movement thus ensured by this user is then passed on to one or more operating rods extending above and / or below said housing in order to actuate organs locking devices, such as rollers, bits and the like.

In the context of an application to tilt-and-turn windows, such a locking fitting, of the lever type or cremone bolt, still allows, starting from the position of door or window lock, select mode opening, or oscillating around an axis of vertical rotation, or tilting by rotation of the sash, relative to the frame, around a horizontal axis materialized by the lower cross member of this opening.

In this context, an anti-false maneuver device has for function of preventing the locking fitting from being operated when the door or window is in one any of these opening positions, as long as the opening not folded back against the sleeping frame.

On this, it should also be clarified that such cremones or locks are frequently housed in a groove built-in rebate of the opening frame and closed with a headrest at the back of which move the above-mentioned operating rod or rods.

In this case, said anti-false operation device 50 is defined on the one hand by lever 3 and, on the other hand, by a pivot shaft 51 defining, substantially, the articulation means 14 of this lever 3. This shaft of pivoting 51 is extended through an opening, a part, in the support plate 4 and, secondly, in the headrest 52 to which the latter is attached. To his free end, said pivot shaft 51 carries a retaining tab 53 which is engaged in a light 54 arranged accordingly in the operating rod 56 coming to move behind the headrest 52.

The assembly is thus designed so that once the chassis opening 7 folded down on its sleeping frame 11 and, therefore, the lever 3 brought back in the longitudinal plane of the support plate 4, the retaining tab 53 is in the axis of the light 54 in the operating rod 56, authorizing the free displacement of the latter. Unlike after opening of the door or window and the lever 3 pushed back into its position waiting by means of elastic return means 12, this retaining tab 53 is positioned at an angle in the light 54 so as to cooperate with recesses lateral 57, 58 at the latter. Said trigger of maneuver 56 is then immobilized in translation.

It should be observed that this light 54 in the rod of maneuver 56 can thus comprise several recesses lateral 57, 58 allowing this rod to be immobilized maneuver 56 in different positions corresponding to different possibilities of opening the door or window.

In this area locking fittings of the bolt type or cremone bolt, it is still customary to ensure immobility temporary operating rods to facilitate proper positioning in relation to each other, of the different parts making up a bolt or bolt-lock when mount it on a carpentry. Such immobilization maneuvering rods is still desirable when there is place to cross them to adjust them to this carpentry. he It is important, in fact, that this cross-checking takes place while taking account of the locking or unlocking position that occupy, at this time there, these rods of operation. For we use breakable immobilization pads connecting, for example, an operating rod to its headrest, this pad being automatically sectioned during the first control of the cremone bolt or bolt lock mechanism.

In fact we imagined to associate with the lifting device 1 according to the invention, this immobilizing function temporary of a cremone rod or cremone bolt. In particular, the retaining tab 53 corresponding to the anti-misuse device 50 is provided capable of receiving a breakable stud 59 defining on at least one of the lateral sides 60 of the retaining tab 53, a boss 61 able to cooperate with one of the recesses lateral 57, 58 in the lumen 54 of the operating rod 56 to immobilize it for the necessary time. In particular, when ordering on the move this operating rod 56 under the impulse of the control of the cremone bolt or cremone bolt one of the shoulders 62 defined by such an offset 57, 58 comes to act, like a chisel, to cut the boss (es) 61 of the breakable stud 59, thus releasing said operating rod 56.

As is apparent from the above description, the present invention advantageously responds to disadvantages resulting from the state of the art.

Claims (10)

Lifting device comprising a lever (3) mounted pivoting on a support plate (4) reported in rebate on the opening frame (7) or the sleeping frame of a door, window or the like (2), and provided capable of cooperating with a stop support (8) arranged in correspondence, as the case may be, on the standing frame or opening frame (7) to secure in charge, at least in part, of the weight of the latter at the time to close said door, window or other (2), said lever (3) being subjected to the impulse of elastic return means (12) ensuring its tilting, in a waiting position, direction of the support stop (8), once the door or window (2) open, characterized in that said means of elastic return (12) are defined capable of repelling said lever (3), as appropriate, in one direction (22) or one opposite direction (23) relative to said support plate (4), while two breakable retaining means and / or retractable (20, 21) are provided capable of preventing the tilting of the lever (3), respectively, in one and the other of the pivoting directions (22, 23) so that the removal and / or retraction of one of said means of retainer (20, 21) causes this lever (3) to tilt in a determined direction. Lifting device according to claim 1, characterized by the fact that the elastic return means (12) are have the form of a pin spring (24) comprising two branches (25, 26) held under stress between two retaining pins (27, 28) defining the two means of breakable and / or retractable retainers (20, 21). Lifting device according to claim 2, characterized by the fact that the two breakable retaining lugs (27, 28) and / or retractable are associated with the support plate (4) or lever (3), the latter or, respectively, said plate support (4) receiving two attachment fingers (29, 30) with one of which is required to cooperate with one of the branches (25, 26) of the spring (24), once one of the retaining pins (27) or (28) sectioned and / or retracted. Lifting device, comprising a lever (3) mounted pivoting on a support plate (4) reported in rebate on the opening frame (7) or the sleeping frame of a door, window or the like (2), and provided capable of cooperating with a stop support (8) arranged in correspondence, as the case may be, on the standing frame or opening frame (7) to secure in charge, at least in part, the weight of the latter at the time to close said door, window or other (2), said lever (3) being subjected to the impulse of return means elastic (12) ensuring its tilting in a position waiting, in the direction of the support stop (8), once the door or window (2) open, characterized in that the support plate (4) includes attachment means (40) with which cooperate at least one (41) of the ends of the means elastic return (12), these attachment means (40) being defined by at least two attachment points (44, 45) which are thus determined on this support plate (4) so that causing said end (41) to cooperate with the return means elastic (12), with one or, respectively, the other of these attachment points (44, 45), this results in their placing under constraint which results in causing the tilting lever (3) in one direction (22), respectively, in one opposite direction (23). Lifting device according to claim 4, characterized by the fact that the elastic return means (12) are defined by a spiral or helical spring (43). Lifting device according to any one of Claims 4 and 5, characterized in that the means attachment point (40) have an intermediate attachment point (46) whose position is determined so that the cooperation of the end (41) of the spring (43) corresponding to the means of elastic return (12) with this intermediate attachment point (46), neutralizes the action of this spring (43) on this lever (3) to keep it in the extension of the support plate (4). Lifting device comprising a lever (3) mounted pivoting on a support plate (4) reported in rebate on the opening frame (7) or the sleeping frame of a door, window or the like (2), and provided capable of cooperating with a stop support (8) arranged in correspondence, as the case may be, on the standing frame or opening frame (7) to secure in charge, at least in part, of the weight of the latter at the time to close said door, window or the like (2), said lever (3) being subjected to the impulse of return means elastic (12) ensuring its tilting in a position waiting, in the direction of the support stop (8), once the door or window (2) open, characterized in that the elastic return means (12) are in the form of a hairpin spring (24A) with two arms (25A, 26A) maintained slightly under stress between two elements (26A, 27A) forming a stop associated with the support plate (4) or lever (3), while the latter or, as the case may be, the plate support (4) receives hooking means (29A, 30A) suitable for cooperate with one or other of the branches (25A, 26A) of the spring (24A) in order to ensure the tilting of the lever (3) in one direction (22) or in the opposite direction (23). Lifting device according to claim 7, characterized by the fact that the attachment means consist of two hooking fingers (29A, 30A) defined in the form of a step, of a part, able to be positioned between the two branches (25A, 26A) of the spring (24A) to maintain the lever (3) in the extension of the support plate (4) and, on the other share, one of which is able to cooperate, respectively, with one or other of the branches (25A, 26A) of the spring (24A) in order to ensure the tilting of the lever (3) in a direction (22) or in the opposite direction (23). Lifting device according to any one of Claims 1 to 8, characterized in that it defines a anti-tampering device (50) capable of preventing the displacement of an operating rod (56) of a fitting of locking, of the bolt type or lever-lock type, associated with opening frame (7) of a door, window or the like, this that said opening frame (7) is not closed on its frame dormant, said anti-false operation device (50) being defined, on the one hand, by the lever (3) and, on the other hand, by a pivot shaft (51) defining, substantially, the means of articulation (14) of this lever (3), this shaft of pivot (51) being extended through an opening, on the one hand, in the support plate (4) and, on the other hand, in a headrest (52) to which the latter is attached, the free end of said pivot shaft (51) comprising a retaining tab (53) held engaged in a lumen (54) formed accordingly in an operating rod (56) moving at the rear of said headrest (52), at level of this light (54) being provided with recesses side (57, 58) with which is able to cooperate said retaining tab (53) for immobilizing in translation the operating rod (56) when the opening frame (7) is in any of its open positions relative to to the sleeping frame. Lifting device according to claim 9, characterized by the fact that it includes means temporary immobilization of an operating rod of cremone bolt or cremone bolt, said means being provided under form of a breakable stud (59) defining, on at least one of the lateral sides (60) of the retaining tab (53), a boss (60) able to cooperate with one of the lateral recesses (57, 58) in the light (54) of the operating rod (56) for immobilize it temporarily.

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