FR2786527A1 - LIFTING DEVICE FOR CHASSIS OPENING FROM 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

i 2786527 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 sleeping frame of a door, window or the like, and provided capable of cooperating with a bearing stop arranged in correspondence, as the case may be, on the sleeping frame or said opening frame, to ensure the assumption, at least in part, of the weight of the latter at the time of closing said door, window or other, said lever being subjected to the impulse of elastic return means to cause its tilting in a waiting position in the direction of the stop

  support, once the door or window is open.

  The present invention will find its application in the field of building hardware and relates, in particular, to devices allowing partial recovery of the weight.

  an opening when closing it on its sleeping frame.

  The invention also relates to anti-tamper devices capable of preventing a locking fitting, of the bolt type or lever-bolt type, from being able to be brought into its locking position while the door leaf is open, window or the like,

  has not been closed on its sleeping frame.

  In fact, reference will be made, in particular, to document EP-A-0.735. 223 o there has already been described a device for

  linkage 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 the rebate of the front upright of the opening of a door, window or the like. Elastic return means act on this lever to push it into abutment in a waiting position in the direction of the sleeping frame. In particular, in the rebate of the corresponding amount of the latter is a support stop on which can, precisely, bear the lower end of the lever, this when closing the door, window or other, for, by effect rotation around its pivot axis on the opening frame, ensure the lifting of the latter and guarantee its

  engagement, in a suitable position in the frame.

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  In the specific case described in this document EP-A-0.735.223, the lever comprises, at its lower extremity, a sort of lateral cutout making it possible to define a positioning finger intended to

  promote engagement with the support stop on the frame.

  Of course, the configuration of this support stop is adapted to

that of said lever.

  In particular, if this support stop is of symmetrical configuration, with respect to its horizontal median plane, 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 chassis opening, namely the lever or its support plate, does not have this ability. This amounts to saying that the manufacturer must manage the manufacture of lifting devices for an application, on the one hand, on the right and, on the other hand, on the left. In addition, the carpenter must also have both types of lifting devices in his inventory to be able to meet customer demand, without counting

  that he must ensure when fitting a carpentry that this

  it receives the correct lifting device.

  Furthermore, insofar as, from the outset, the elastic return means push the lever back into its standby position, ie offset, angularly, relative to the longitudinal axis of the support plate, the storage of these devices lift is problematic. In addition, once mounted on a joinery their lever defines a protruding part relative to the plane of the chassis which makes it particularly vulnerable as long as the opening is not

mounted on its sleeping frame.

  As revealed in document EP-0.735.223, such

  lifting device can also constitute an anti-

  incorrect operation capable of preventing a locking fitting from being brought into its locking position until the opening of a door or window is closed on its frame

  sleeping. However, such a design generates other drawbacks.

  In particular, it is necessarily in this natural waiting position, imposed by the elastic return means,

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  that the lever ensures, through its pivot axis passing through the support plate, the locking in translation of an operating rod corresponding to a locking fitting of the bolt type or bolt lock. Consequently, when fitting the opening frame with carpentry of such a lever or lever-lock, the operation of the latter can only be tested on condition that the operator brings the lever back into the extension of the support plate, against the action of the elastic return means. We understand, of course, that this complicates

  this test maneuver for the operator.

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

  window in its frame 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 sleeping frame of a door, window or the like, and provided capable of cooperating with a stopper d 'support arranged in correspondence, as the case may be, on the sleeping frame or the opening frame to ensure support, at least in part, for the weight of the latter when it comes to close said door, window or other, said lever being subjected to the impulse of elastic return means ensuring its tilting in a waiting position, in the direction of the support stop, once the door or window is open. According to the invention, said elastic return means are defined capable of pushing said lever, as the case may be, in an opposite direction or direction with respect to said support plate, while two breakable and / or retractable retaining means are provided capable of prevent the lever from tilting, respectively, in either direction

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  pivoting so that the removal and / or retraction of one of said retaining means causes this lever to tilt in

a determined direction.

  In fact, in the same inventive step, it has been imagined that the support plate comprises attachment means with which cooperates at least one of the ends of the elastic return means, these attachment means being defined by at least two attachment points which are thus determined on this support plate that by causing said end of the elastic return means to cooperate with one or respectively the other of these attachment points, this results in their stressing, resulting in cause the lever to tip over in a

  direction, respectively, in an opposite direction.

  According to another embodiment using the same inventive concept, the elastic return means are in the form of a pin spring provided with two branches maintained 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 hooking means capable of cooperating with one or the other of the branches of the spring in order to ensure the tilting of the lever in one direction or in

a direction of opposite direction.

  Ultimately, through the three preceding solutions and which result from the same inventive step, it has been imagined elastic return means which, at first, either exert on the lever contrary forces which are canceled out either, conversely, do not exert any impulse on the lever. It is only in the final assembly and locking assembly phase on a joinery that the operator will be able to force the elastic return means to exert their action in one direction or the other on the lever, or by canceling one of the forces applied by these elastic return means to this lever, that is,

  by coming to constrain them in a defined direction.

  Also, the advantages which result from the present invention are manifold. In particular, to the extent that it no longer exists

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  that only one type of lifting device this facilitates their manufacturing management, but also that of their storage, an advantage that is found both at the level of the manufacturer and the carpenter. In addition, the lever being maintained, initially, in the extension of its support plate, this assembly is, not

  only less cumbersome, but also less vulnerable.

  Finally, such a lifting device, even if it is assigned the function of anti-false operation device, allows, during the mounting of a locking fitting on an opening, to test the proper functioning of this fitting locking without the need, in parallel, to actuate 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 making it possible to adjust its length which makes it possible to considerably facilitate the initial and subsequent adjustments. Other objects and advantages of the present invention

  will appear during the description which follows relating to

  to embodiments which are given only by way of example

indicative and not limiting.

  Understanding 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; FIG. 5 is an elevation representation of a lifting device according to a third embodiment,

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  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 on 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; - Figures 9, 11, and 13 correspond to representations

  shown schematically and in section respectively in FIGS. 8, 10 and 12.

  The present invention relates to a lifting device 1

  applied, as shown in figure i of the drawings below

  joints, 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 FIG. 1 in rebate 5 of the front upright 6 of the opening frame 7 corresponding to this door or window 2. In this regard, this support plate 4 can be fixed on a headrest present in rabbet 5. The lever 3 is very particularly intended to cooperate with a support stop 8 which is formed in rabbet

  9 of the corresponding upright 10 of the frame 11.

  Already, it will be observed that a reverse arrangement is possible, that is to say that the opening frame 7 can receive the support stop 8, the frame 11 being equipped, under these conditions, with the 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 subjected to the impulse of elastic return means 12 that comprises the support plate 4, this to cause its tilting into a waiting position that can be seen

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  particularly shown in Figures 1 and 6 of

  attached drawings, this when the door or window 2 is open.

  Thus, in this standby position the lever 3, the upper end 13 of which is pivotally mounted, by means of articulation means 14 about an axis 15 horizontal and parallel to the plane of the opening frame 7, points its lower end 16 in

frame frame direction 11.

  Also, at the time of closing this opening frame 7 on said dormant frame 11, this lower end 16 of the lever 3 first meets the support stop 8. At this moment there and while continuing the movement the opening frame 7 is raised, under the effect of the double rotation of this lever 3, on the one hand, 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 opening frame 7 can

  then fit, suitably, into a sleeping frame 11.

  Advantageously, the lever 3 comprises means 17 making it possible to adjust its length. Substantially, these means 17 consist, at its lower end 16, of a telescopic end portion 18 capable of being immobilized in a determined position relative to the lever 3 by means of clamping means 19. In fact, the particularity of the invention resides in that, in the context of a first embodiment corresponding to FIG. 2, the elastic return means 12 are defined capable of pushing said lever 3, as the case may be, in one direction or in the direction reverse with respect to the support plate 4 on which it is rotatably mounted. In addition, said support plate 4 comprises two breakable retaining means 20 and 21 and / or retractable provided capable of preventing the tilting of the lever 3, respectively in one and the other pivoting direction 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 specific direction, respectively 22, 23.

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  Thus, as can be seen in this FIG. 2, said elastic return means 12 can be in the form of a pin spring 24, the two branches 25, 26 of which are held under stress between two lugs of retainers 27, 28 defining the two means retaining 20, 21 breakable and / or retractable, insofar as it suffices to cut one of these retaining lugs 27, 28 or even to pass one of the branches 25, 26 above one from them so that this branch 25 or 26 of the spring 24, coming to bear, then, on a hooking finger, as the case may be, 29, 30 associated with the lever 3 pushes the latter in the direction 22 or that

reverse 23.

  Note that this still works in the case where the breakable and / or retractable lugs 27, 28 are associated with the lever 3, the

  support plate 4 then receiving the hooking fingers 29, 30.

  Note the presence of stop means 31 able to limit the pivot angle of the lever 3 relative to the support plate

  4 whether by rotation clockwise or counterclockwise.

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

on the 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 only by coming to connect said end 41 of the spring 43 with one or the other of these attachment points 44, 45 this results in the stressing of said spring 43 having the consequence of causing the lever 3 to tilt in the 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 even with the attachment point 45, this results in the stressing of this spring 43 in one direction or in the other so that the action of its branch

  42 on lever 3 is not the same.

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  Of course, once again, there are stop means 31 capable of limiting the angular displacement of this lever 3 relative to

to the support plate 4.

  Advantageously and as visible in FIG. 3, these attachment means 40 also include an intermediate attachment point 46 whose position is determined so that the cooperation of the end 41 of the spring 43 with this attachment point intermediate

  46 neutralizes the action of this spring 43 on the lever 3.

  That is then maintained in the extension of the support plate 4. It is in fact in this configuration that the device 1 is delivered to the carpenter, it is up to him to tension the spring 43 so that it acts

  in the right direction on the lever 3.

  Its design according to Figures 5 to 6 corresponds to the case where the elastic return means 12 are in the form of a pin spring 24A provided with two branches 25A, 26A maintained slightly under stress between two elements forming a stop 27A, 28A associated with the support plate 4, while the lever 3 receives hooking means able to 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. Substantially, the attachment means consist of two attachment fingers 29A, 30A, associated with the lever 3 on its

  side 32 opposite the support plate 4.

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

support 4.

  Then, coming to ensure the crossing of one of the hooking fingers 29A arranged on one side of the lever 3, relative to the branch 25A lying on the same side, this branch 25A in cooperation with this hooking finger 29A prevents this lever 3 from returning to its initial position. In fact, the spring 24A holds it

then in its waiting position.

  It will be observed, in particular, that these attachment fingers 29A, 30A are defined in the form of a step, that is to say that once one

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  either of the branches 25A, 26A crossed the reverse maneuver is impossible because of the steps that define, precisely, these

  attachment fingers 27A, 28A in this position.

  It is obvious that the attachment 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 under

  constrains the two branches 25A, 26A of the spring 24A.

  A lifting device 1, according to the invention can,

  advantageously perform the functions of an anti-

  wrong operation as part of its application to a fitting of

  Lock type cremone bolt or bolt lock.

  In fact, such a cremone bolt or cremone bolt comprises, usually, a control mechanism on which the user acts by means of a handle or a control button, if necessary, again using of a key element. The movement thus provided by this user is then passed on to one or more operating rods extending above and / or below said housing in order to actuate locking members, such as

rollers, bits and more.

  In the context of an application to oscillating openings

  casement, such a locking fitting, of the cremone bolt or cremone bolt type, also makes it possible, starting from the locking position of the door or window, to select the opening mode thereof, ie oscillating about an axis of rotation vertical, or tilting by rotation of the opening, relative to the frame, around a horizontal axis materialized by the

  lower cross member of this opening.

  In this context, an anti-false operation device has the function of preventing the locking fitting from being able to be operated when the door or window is in any one of these opening positions, as long as the opening did not

  been folded back against the sleeping frame.

  On this, it should also be specified that such cremone bolts or locks are frequently housed in a recess groove formed in the rebate of the opening and closed chassis.

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  using a headrest at the back of which come to move

  the above-mentioned operating rod or rods.

  In this case, said anti-false operation device 50 is defined on the one hand by the lever 3 and, on the other hand, by a pivot shaft 51 defining, substantially, the articulation means 14 of this lever 3 This pivoting shaft 51 is extended through an opening, on the one hand, in the support plate 4 and, on the other hand, in the headrest 52 on which the latter is attached. At its free end, said pivot shaft 51 carries a retaining tab 53 which is engaged in a slot 54 formed consequently in the rod

  maneuver 56 coming to move behind the headrest 52.

  The assembly is thus designed so that once the opening frame 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 present in the axis of the light 54 in the operating rod 56, authorizing the free movement of the latter. In contrast, after opening the door or window and the lever 3 pushed back into its waiting position by means of elastic return means 12, this retaining tab 53 is positioned at an angle in the lumen 54 so as to cooperate with lateral recesses 57, 58 at the level of the latter. Said operating rod 56 is, then,

immobilized in translation.

  It should be observed that this light 54 in the operating rod 56 can thus comprise several lateral recesses 57, 58 making it possible to immobilize this operating rod 56 in different positions corresponding to the different possibilities

  door or window openings.

  In this field of locking fittings of the bolt-type or lever-type locks, it is still customary to ensure temporary immobility of the operating rods to facilitate the correct positioning with respect to each other, of the different parts making up a lever or lever-bolt to the time to mount it on a carpentry. Such immobilization of rods

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  maneuvering is still desirable when it is necessary to cut them to adjust them to this joinery. It is important, in fact, that this cross-checking takes place taking into account the locking or unlocking position occupied by these operating rods at that time. For this we use breakable immobilization studs connecting, for example, an operating rod to its headrest, this stud being automatically cut

  when the cremone bolt mechanism or cremone bolt is ordered for the first time

  lock. In fact, it has been imagined to associate with the lifting device 1 according to the invention, this function of temporary immobilization of a rod for operating a lever or a lever-lock. In particular, the retaining tab 53 corresponding to the anti-false operation 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 suitable for cooperate with one of the lateral recesses 57, 58 in the lumen 54 of the operating rod 56 to immobilize the latter for the necessary time. In particular, when controlling the movement of this operating rod 56 under the impulse of the mechanism for controlling 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 section the boss (s) 61 of the breakable stud 59, thereby releasing said

operating rod 56.

  As is apparent from the above description, the present

  invention responds advantageously to the disadvantages

  resulting from the state of the art.

  Although the invention has been described with reference to a particular embodiment, it is understood that it is in no way limited thereto and that it is possible to make various modifications to the forms, materials and combinations of these. various elements,

  without departing from the scope and spirit of the invention.

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Claims (10)

Claims   1. Lifting device comprising a lever (3) pivotally mounted on a support plate (4) attached in rebate on the opening frame (7) or the standing frame of a door, window or the like (2), and provided capable of cooperate with a support stop (8) formed in correspondence, as the case may be, on the sleeping frame or the opening frame (7) to ensure the assumption, at least in part, of the weight of the latter at the time of closing 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, in the direction of the support stop (8 ), once the door or window (2) open, characterized in that said elastic return means (12) are defined capable of pushing said lever (3), as appropriate, in a direction (22) or a direction opposite (23) relative to said support plate (4), while two breakable and / or retracting retaining means Ables (20, 21) are provided capable of preventing the lever (3) from tilting, respectively, in one and the other of the pivoting directions (22, 23) so that the removal and / or retraction of one of said retaining means (20, 21) causes the tilting of this   lever (3) in a specific direction.   2. lifting device according to claim 1, characterized in that the elastic return means (12) are in the form of a pin spring (24) comprising two branches (25, 26) held under stress between two pins retaining means (27, 28) defining the two separable retaining means (20, 21) and / or retractable.   3. lifting device according to claim 2, characterized in that the two retaining lugs (27, 28) breakable and / or retractable are associated with the support plate (4) or with the lever (3), the latter or, respectively, said support plate (4) receiving two latching fingers (29, 30) with one of which is brought to cooperate one of the branches (25, 26) of the spring (24), a 14 2786527   once one of the retaining pins (27) or (28) cut and / or retracted. 4. Lifting device, comprising a lever (3) pivotally mounted on a support plate (4) attached in rebate on the opening frame (7) or the sleeping frame of a door, window or the like (2), and provided suitable to cooperate with a bearing stop (8) arranged in correspondence, as the case may be, on the sleeping frame or the opening frame (7) to ensure support, at least in part, for the weight of the latter at the time of closing 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, in the direction of the support stop ( 8), once the door or window (2) open, characterized in that the support plate (4) comprises attachment means (40) with which cooperates at least one (41) of the ends of the means of elastic return (12), these attachment means (40) being defined by at least two attachment points (44, 45) which are thus i determined on this support plate (4) so that, by causing said end (41) to cooperate, elastic return means (12), with one or, respectively, the other of these attachment points (44, 45), this results in their putting under stress having the consequence of causing the lever (3) to tilt in a direction (22), respectively, in a opposite direction (23).   5. Lifting device according to claim 4, characterized in that the elastic return means (12) are defined   by a spiral or helical spring (43).   6. Lifting device according to any one of   Claims 4 and 5, characterized in that the means   of attachment (40) comprise an intermediate attachment point (46) whose position is determined so that the cooperation of the end (41) of the spring (43) corresponding to the elastic return means (12) with this point intermediate attachment (46), neutralizes the action of this spring (43) on this 2786527   lever (3) to hold it in line with the support plate (4).   7. Lifting device comprising a lever (3) pivotally mounted on a support plate (4) reported in rebate on the opening frame (7) or the frame of a door, window or the like (2), and provided capable of cooperate with a support stop (8) arranged in correspondence, as the case may be, on the sleeping frame or the opening frame (7) to ensure the assumption, at least in part, of the weight of the latter at the time of coming close said door, window or the like (2), said lever (3) being subjected to the impulse of elastic return means (12) ensuring its tilting in a waiting position, 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 pin spring (24A) provided with two branches (25A, 26A) held slightly under stress between two elements (26A, 27A) forming a stop associated with the support plate (4) or to the lever (3), while the latter or, as the case may be, the support plate (4) receives hooking means (29A, 30A) capable of cooperating 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).   8. Lifting device according to claim 7, characterized in that the attachment means consist of two attachment fingers (29A, 30A) defined in the form of step, on the one hand, capable of being 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 hand, one or the other 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).   9. 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 16 2786527   displacement of an operating rod (56) of a locking fitting, of the cremone bolt or cremone bolt type, associated with the opening frame (7) of a door, window or the like, as long as said opening frame (7) is not closed on its sleeping frame, said anti-false operation device (50) being defined, on the one hand, by the lever (3) and, on the other hand, by a pivoting shaft (51) substantially defining the articulation means (14) of this lever (3), this pivot shaft (51) being extended through an opening, on the one hand, in the support plate (4) and, d 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) kept engaged in a slot (54) formed consequently in a rod maneuver (56) moving at the rear of said headrest (52), at this light (54) being provided d lateral hooks (57, 58) with which is able to cooperate said retaining tab (53) to immobilize in translation the operating rod (56) when the opening frame (7) is in any one of its positions of opening by compared to the sleeping frame.   10. Lifting device according to claim 9, characterized in that it comprises immobilization means   temporary of a cremone bolt or cremone rod   lock, said means being in the form of a breakable stud (59) defining, on at least one of the lateral sides (60) of the retaining tab (53), a boss (60) capable of cooperating with the one of the lateral recesses (57, 58) in the lumen (54) of the   operating rod (56) to immobilize it temporarily.