EP1059409B1 - Drive gear for a lock follower - Google Patents

Abstract

The spring lock comprises a casing (22) in which a primary spring pinion is installed which engages through an operating square (26) a locking spring (14) housed in the rabbet (20) of the door frame (3). A secondary spring pinion receives the operating square (15) of a handle (13). The two spring pinions are arranged in the same plane in the casing.

Description

The present invention relates to the field of hardware building.

The invention relates more particularly to a follower return device according to the preamble of claim 1.

La figure 1 est une représentation schématisée et en coupe des montants avant de deux vantaux A, B d'une fenêtre dont l'un A est à recouvrement du second B ;

La figure 2 représente ces mêmes montants décalés l'un par rapport à l'autre, la poignée de commande étant ici démontée.

There are already follower return devices of this type. In this regard, to better understand this state of the art, reference will be made to FIGS. 1 and 2 of the attached drawings, holding that:

Figure 1 is a schematic representation in section of the front uprights of two leaves A, B of a window one of which A overlaps the second B;

Figure 2 shows these same amounts offset relative to each other, the control handle being disassembled here.

In fact, this state of the art represented in these figures 1 and 2 and which is described in more detail below, corresponds, more particularly in document DE-U-91 03 676.

Thus, as visible in these figures 1 and 2, the opening frame, corresponding to leaf A, has a cover strip C which is applied on a support edge D of the other leaf B. In addition, this frame opening the overlapping leaf A receives, in rebate of its front upright, a locking fitting E coming from fit into an installation groove F provided for this purpose.

We see, again, that on the internal side, the cover strip C of this front upright of leaf A receives an internal swing G, in the form of a finishing profile giving a certain symmetry to the whole, not to mention that this beat G comes to close the rebate H (fig. 1) existing between the edges of leaves A and B. This rebate comprises, outside the area occupied by the follower return device, a seal (not shown) housed in a groove R of the cover strip (as visible figure 2).

As can be seen very clearly in this figure 1, the axis I of the follower corresponding to the control mechanism of the locking fitting E is substantially offset, horizontally, relative to the plane median J of the beat G to which is reported, so centered, the control handle K and, therefore, the operating square M of the latter.

In these conditions, a call forwarding device is used. follower N which takes position between the handle K and the lock fitting housing E. Ultimately, like visible in these figures 1 and 2, this follower return device N, in the form of a case, takes position in a notch O practiced from the rebate in the cover strip C. In Consequently, such a cut O defines, at the level of this strip of overlap C an interruption in the seal, breaking the groove R of the covering strip C, which it provides in cooperation with the support edge D of the other leaf B.

After implantation in leaf of leaf A, the fitting of lock E and the follower N return device, it is reported, at this notch O, a finishing cover P for recreate this continuity at the level of said covering strip C. Such a finishing cover P is, however, incapable of remedying the problem of sealing which has just been mentioned.

Obviously such a cover P must necessarily be adapted to the distance Q separating the internal side of the covering strip C from lock fitting housing E. This is mainly due to to the fact that the deflector and follower N comes, here, directly applied to this housing of the locking fitting E. Note, in this regard, that their connection is ensured by fixing screws, taking into account that, necessarily, the assembly, locking fitting E and device N gear return, must be recessed, in one piece, in rebate of the opening frame corresponding to the leaf of overlay A.

As for the N follower return device, the details of which do not appear in these figures 1 and 2 corresponding to the state of the technique, it comes in the form of a box in which are mounted in rotation, around parallel axes, on the one hand, a primary gable-nut crossed in its center by an opening for the reception of a maneuvering square coming to cooperate, by elsewhere, with the nut of the control mechanism of the fitting of locking E. On the other hand, in this housing is mounted a pinion-nut secondary itself crossed by an opening for the reception of the operating square of the control handle K. These primary and secondary sprocket gears are engaged one with the other through reversing gears, in particular the number of two, allowing, when rotated by the handle control gear K of the secondary pinion in a specified direction, that it results in a rotation in the same direction of the pinion-follower primary.

According to the drawings and the description of this document DE-U-91 03 676, these primary and secondary sprockets are arranged in a same plan in said housing.

However, because of the section often standard of the maneuvering squares, whether that of the handle or lock fitting mechanism, the center line between these gables is too large, and therefore the difference they provide is too large and / or the size of the housing of this follower return device becomes excessive in width, preventing its accommodation in the notching in the rebate of the front upright of the opening.

The solution consisting in arranging these pinions in planes distinct poses other problems. In particular, it results relatively large thickness of this case which can not take position only in a consequent notch O at the level of the carpentry. As can be seen in Figure 1, this notching O necessarily extends into the covering strip C and the thickness of the amount of the cover leaf A.

• de faciliter le logement de ce dispositif dans l'épaisseur de la menuiserie ;
• de rendre plus aisé l'entaillage qu'il convient de réaliser dans cette menuiserie pour permettre ce logement ;
• d'éviter l'emploi d'un cache P comme cela était utile par le passé ;
• rendre plus aisé la fixation dudit dispositif sur le boítier de la ferrure de verrouillage ;
• permettre la pose, individuellement, de la ferrure par rapport à ce dispositif de renvoi de fouillot ;
• autoriser un montage en applique de ce dernier au travers d'un entaillage ménagé du côté interne au bandeau de recouvrement.

The present invention aims to provide a solution to this general problem of the size of a follower return device, this for the purpose:

• to facilitate the housing of this device in the thickness of the joinery;
• to make easier the notching that should be carried out in this joinery to allow this housing;
• avoid the use of a P cache as was useful in the past;
• make it easier to fix said device to the housing of the locking fitting;
• allow the fitting, individually, of the fitting relative to this follower return device;
• authorize a surface mounting of the latter through a notch formed on the internal side of the covering strip.

In general, the present invention is intended to to provide a solution to make such an easily adaptable follower return device to any type of profile constituting the opening frame of a door, window or the like, in particular regardless of the thickness of the profile, therefore the distance separating the internal side of the latter from the internal side of the housing locking fitting control mechanism.

To this end, the invention relates to a device for returning follower as defined in claim 1.

The advantages resulting from the present invention consist, all first, in that the arrangement in the same plane of the gables allows to give the housing of this follower return a thickness more reduced, compatible with the thickness of a strip of opening frame cover. Furthermore, to the extent that these pinions no longer necessarily have in their center a section opening adjusted directly to the square section of operation, whether that of the control mechanism or that of the handle, these pinions can be of much smaller section without this posing any problem of material thickness relative to their peripheral toothing and, therefore, mechanical strength of these gables. Also, this case can, also, present a narrower width, so that it can be mounted on a surface in a notch extending exclusively in this strip of recovery.

According to an advantageous embodiment of the invention, the secondary sprocket and / or primary sprocket are subdivided, in their axial direction, into two cylindrical portions of which a first has teeth capable of meshing with the pinion reverser, the second portion comprising in its center, a primary and / or secondary opening for the reception of the primary and / or secondary operating square of the handle and / or the control mechanism and substantially constituting said primary and / or secondary coupling means.

According to a feature of this invention, the portion of the pinion-nut secondary and / or primary gear, provided with the opening for receiving the handle operating square and / or of the control mechanism, is at least partially emerging from the housing, on the side opposite the handle and / or said mechanism ordered.

In fact, like on the inner side of the cover strip is reported a beat, referenced G in Figure 2, it was imagined, as part of an inventive approach, to take advantage of the extra thickness provided by this beat to come and accommodate the said secondary coupling means corresponding to this secondary pinion In fact, there is a hole in this search anyway passage of the handle operating square. To the extent that it is customary to give this hole a cross section much greater than that of such an operating square, these coupling means, extending at least partially outside the housing, may take a stand without the need to plan any additional machining operation.

According to another characteristic of the invention, the pinion-nut primary and / or secondary sprocket is extended, axially, by a primary and / or secondary operating square made in one piece with this gable and projecting from the side of the housing opposite the housing of the locking fitting and / or of the handle.

Furthermore, according to an additional characteristic of the invention, on the primary operating square made of material with the pinion nut primary is engaged a fur forming a spacer, of the type interchangeable, to adapt to the distance between the case of said device of the case of the locking fitting.

According to yet another embodiment of the invention said primary and / or secondary coupling means are defined by an intermediate piece comprising, on the one hand, at one end of the fitting means males or females provided to cooperate with nesting means of conjugate form females or males which comprises the pinion-nut primary and / or secondary sprocket and, secondly, a extension, either in the form of a primary and / or secondary operating square coming present protruding from the side of the housing opposite the fitting of locking and / or handle, either comprising in its center a opening for receiving the primary and / or secondary operating square of this handle and / or this control mechanism.

According to another characteristic the case of the return device follower is provided capable of receiving fixing means by clipping to ensure its connection to the housing of the fitting locking, such means of fixing by clipping being, there again, of an interchangeable nature to be adjusted to the distance between said boxes.

La figure 3 est une représentation schématisée et en coupe du montant avant, recevant une ferrure de verrouillage, du châssis ouvrant correspondant à une porte, fenêtre ou analogue, du type à deux vantaux, entre ladite ferrure de verrouillage et une poignée de commande étant interposé un dispositif de renvoi de fouillot, conforme à l'invention ;

La figure 4 est une représentation schématisée et en coupe transversale du boítier du dispositif de renvoi de fouillot, conforme à l'invention;

La figure 5 est une représentation similaire à la figure 4 correspondant au second mode de réalisation ;

La figure 6 est une représentation schématisée et en plan du dispositif, étant visible le côté destiné à être orienté en direction du boítier de la ferrure de verrouillage ;

La figure 7 est une représentation schématisée illustrant la solution où les moyens d'accouplement primaires et/ou secondaires se présentent sous forme d'une pièce indépendante ;

La figure 8 est une représentation schématisée du dispositif tel qu'illustré dans la figure 5, une coupe partielle étant réalisée à hauteur du fourreau, formant entretoise, qui est engagé sur le carré de manoeuvre du pignon-fouillot primaire ;

La figure 9 est une vue du détail α de la figure 8 ;

La figure 10 est une vue schématisée et en coupe partielle, représentant la liaison entre le boítier du dispositif de renvoi de fouillot avec le boítier de la ferrure de verrouillage, par l'intermédiaire de moyens de fixation par clipage ;

La figure 11 représente les mêmes pièces de manière éclatée ;

La figure 12 est une vue du détail β de la figure 10.

The present invention will be better understood on reading the following description relating to embodiments shown in the accompanying drawings.

Figure 3 is a schematic representation in section of the front upright, receiving a locking fitting, of the opening frame corresponding to a door, window or the like, of the two-leaf type, between said locking fitting and a control handle being interposed a follower return device, according to the invention;

Figure 4 is a schematic representation in cross section of the housing of the follower return device, according to the invention;

Figure 5 is a representation similar to Figure 4 corresponding to the second embodiment;

Figure 6 is a schematic and plan view of the device, being visible the side intended to be oriented towards the housing of the locking fitting;

Figure 7 is a schematic representation illustrating the solution where the primary and / or secondary coupling means are in the form of an independent part;

Figure 8 is a schematic representation of the device as illustrated in Figure 5, a partial section being made at the height of the sleeve, forming a spacer, which is engaged on the operating square of the primary pinion gear;

Figure 9 is a view of detail α in Figure 8;

Figure 10 is a schematic view in partial section, showing the connection between the housing of the follower return device with the housing of the locking fitting, by means of fixing by clipping;

Figure 11 shows the same parts exploded;

FIG. 12 is a view of the detail β in FIG. 10.

As is apparent from the different figures 3 to 12 of the attached drawings, the present invention relates to a device for returning follower 1 which will find a very particular utility within the framework of a situation as visible in Figures 1 and 2 which, they correspond to the state of the art.

So, in the case of a door or window with two leaves, one says service leaf, overlaps the other, says leaf semi-fixed. More particularly, it has been represented in the figure 3, applying to the present invention, the front upright 2, seen in partial section, of an opening frame 3 corresponding to the leaf of service identified by the reference A in Figures 1 and 2. Thus, this opening frame 3 includes a covering strip 4 intended for apply on a support edge 5 of the front upright 6 corresponding to the opening frame 7, here represented so partial schematic and in broken lines.

Very often, the front pillar 6, corresponding to the other chassis opening 7 receives an external thrust (not shown) coming close, from the outside, the rebate clearance between the uprights front 2 and 6. Furthermore, on the internal side 9 at the covering 4 is also applied an internal swaging 10. This is in the form of a profile often centered in relation to the median plane 11 of this double leaf door or window.

Not only does such an internal beat 10 thus close the rabbet set 12 between the corresponding covering strip 4 to the opening frame 3 and the front upright 6 of the other frame opening 7, but, in addition, it makes it possible, on the internal side to the house, a certain symmetry from a visual point of view of the carpentry.

To keep this symmetry, but also for questions of the control handle 13 provided capable of acting on a locking fitting 14, said control handle 13 takes position in the middle of this internal beat 10. Also, the axis of the square of operation 15 of this control handle 13 is not located at right of axis 16 of the follower corresponding to the control mechanism 17 of said locking fitting 14. In this regard, this one, therefore the housing 18 containing this control mechanism 17, comes to take position in a recess groove 19 provided in rebate 20 the front upright 2 corresponding to the opening frame 3.

As is apparent from the various figures 3 to 12, the device for follower 1, according to the invention, comprises a housing 22 in which are rotatably mounted about axes 23, 24 parallel, on the one hand, a primary-pinion gear 25 intended to cooperate, at across a primary operating square 26, with the follower of the control 17 of the locking fitting 14, here shown under in the form of a lever, and on the other hand, a secondary pinion 27 provided to accommodate the secondary operating square 15 of the handle 13. This primary pinion gear 25 and the pinion gear secondary 27 are meshed through at least one pinion reverser 28, 29 also mounted for rotation in the housing 22. It is designed to take a position in the thickness of the opening frame 3, between the housing 18 corresponding to the fitting of lock 14 and said control handle 13.

As is more particularly visible in Figures 4 and 5 the primary sprocket 25 and the secondary sprocket 27 are arranged in the same engagement plane PL in the housing 22. Such an arrangement makes it possible to give the latter a thickness 34 smaller which is compatible with the thickness 39 of the strip of overlap 4.

According to the invention, it is further provided, in combination, that the primary sprocket 25 and / or secondary sprocket 27 have primary and / or secondary coupling means designed to cooperate with the primary and / or secondary operating square 26; 15, as the case may be, of the control mechanism 17 of the locking fitting 14 or of the handle 13, lying outside of said PL gear plan.

Thus, as seen for example in Figures 4,5,8,10,11, the secondary pinion gear 27 is subdivided, in its axial direction, into two cylindrical portions 30, 31, including a first portion 30 has teeth capable of meshing with the reversing pinion (s) 28, 29. The second portion 31, substantially defining the secondary coupling means, has, in its center, the opening 32 for receiving the secondary operating square 15 from the control handle 13.

Thus, avoiding extending the opening 32, for the reception of this secondary operating square 15, at the level of the cylindrical portion 30, provided with teeth, this can be defined with a diameter of 33 smaller, facilitating its juxtaposition in the same plane, at the primary pinion gear 25, taking into account the spacing respect between axis 23 of the latter with respect to axis 24 of secondary sprocket 27. This spacing. very match exactly at the offset between the secondary operating square 15 of the handle 13 and the axis 16 of the follower corresponding to the control 17 of the locking fitting 14.

Under these conditions, not only the thickness 34 of the housing 22 is is reduced, but also its width 35.

According to another feature of the invention, visible in particular in Figure 5, the portion 31 of the secondary pinion 27, provided of the opening 32 for the reception of the secondary operating square 15 of the control handle 13, may be at least partially emerging of this housing 22, on the side 36 oriented towards said control handle 13. In the end, as shown in this figure 5 this allows to further reduce this thickness 34 of the housing 22.

In addition, such a cylindrical portion 31 emerging from the housing 22 can largely take position in the thickness of the beat internal 10 as shown in Figure 3. Note on this subject that in this beat there is machined a hole to pass the square of operation corresponding to the handle, orifice which, precisely suffices to come and accommodate this projecting portion 31 of said pinion nut secondary 27.

Obviously, the primary pinion gear 25 could be subdivided, in the same way, in two portions and borrow, thus, a configuration similar to the secondary sprocket 27. By elsewhere, again the portion provided with an opening for the reception of the primary operating square corresponding to the control 17 is likely to emerge from the housing 22, on the side of this latest.

According to another embodiment of the present invention which may be considered in combination with the one already mentioned above as can be seen from the accompanying drawings, more particularly in Figures 4,5,8,10 and 12, the pinion primary 25 is extended, axially, by a primary operating square 26 defining said primary coupling means. So this square of primary operation 26, made in one piece with this pinion 25, comes present protruding from the side 37 of the housing 22 opposite the housing 18 of the locking fitting 14, in order to cooperate with the control mechanism 17 of the latter.

By avoiding, as for the secondary sprocket 27, provide an opening in the primary sprocket 25 for the reception of the primary operating square 26, section 38 of this pinion primary 25 can also be reduced.

Again, similar coupling means, in the form of a secondary operating square, could equip the secondary pinion gear 27. Under these conditions, this secondary maneuver square would emerge from the side 36 of the housing 22 to present salient with respect to the beat 10 and allow the engagement of the handle 13.

According to another embodiment of the invention, illustrated with schematically in Figure 7, said primary and / or secondary coupling means can be defined by an intermediate piece 50 comprising, on the one hand, at one end 51 of the male fitting means or 52 females provided to cooperate with means of interlocking females or males conjugate form 53 that includes the pinion primary 25 and / or secondary pinion 27 and, on the other hand, an extension 54; 54A, either in the form of an operating square coming forward projecting from the side 37; 36 of the housing 22 opposite of the control mechanism 17 of the locking fitting 14 or of the handle 13, that is to say comprising in its center an opening for the reception of the operating square 15; 26 of this handle 13 or of this control mechanism 17.

If, in this figure 7, a secondary pinion gear is visible 27 and a primary sprocket 25 receiving each of the means coupling in the form of such an intermediate piece, only one of them can be equipped, the other being likely to receive coupling means corresponding to one of the modes of realization described previously.

Insofar as these primary and secondary pinion gears 25 27 have a section, respectively 38 and 33, independent of that of the primary operating square 26 respectively secondary 15, this section 38, 33 can be adapted to almost any type of spacing currently meets between axis 16 of a follower of a fitting of lock 17 and plane 11 in which the handle is located 13.

Finally, and as shown in figure 3, through above characteristics, the housing 22, width 35 and thickness 34 reduced, is able, under these conditions, to take position in the thickness 39 even of the covering strip 4, which can also be cut, not from the edge before 21 of the upright 2 of the opening frame 3, but from its internal side 9.

Such notching 40 on this internal side 9 of the covering strip 4 is made invisible through the internal beat 10. In addition, such an installation makes it possible to mount the locking fitting 14 independently in the mounting groove 9. The follower 1 is likely to be brought in cooperation, to through the secondary operating square 26 associated with the pinion secondary 25, afterwards with the control mechanism 17 of said locking fitting 14.

It will be noted that, compared with the state of the art solution, the solution according to the invention avoids cutting the edge front of the cover strip 4, design which required the use of a cover P visible in Figure 2 to close this notching after mounting, carried out simultaneously on the fitting locking device and follower return device.

It should also be observed that the distance 41 separating the side internal of the cover strip 4 and the internal side of the housing 18 of the locking fitting 14 may vary in depending on the type of profile used for the design of a chassis opening 3.

Also, according to the invention, on the primary operating square 26 of the pinion-follower primary 25 can be engaged a sheath 42, forming spacer between the housing 22 of this device and the housing 18 enclosing the control mechanism 17 of the locking fitting 14. Such a sheath 42, comprising an opening 43 for the passage of said operating square 26, can be designed as a part made of synthetic material, thickness 44 adapted to this distance between boxes 18 and 22.

Ultimately and as shown in Figures 7 and 8, this sheath 42 can receive, at this opening 43, breakable indexing means 45 for immobilization in rotation temporary of the primary operating square 26, prior to mounting the device for returning the follower 1 to the opening frame 3, therefore before engagement of said primary operating square 26 in the follower of the control mechanism 17 of the locking fitting 14.

Obviously, such breakable indexing means 45 can adopt different embodiments. In particular, they may present in the form of a tab 46 which is inserted into a notch 47 provided at the periphery of the primary operating square 26, or even at the primary sprocket 27.

Obviously, such a sheath 42 could as well be engaged on the extension 54 of an intermediate piece 50 associated with the pinion-follower primary 25, or even on a possible portion emerging from the housing 22, on the side 37 of the fitting 14, and comprising an opening for the reception of a maneuvering square, as shown above about an embodiment of the invention.

Insofar as the locking fitting 14 is attached, individually, on the joinery, just like the device follower 1, moreover, perfectly maintained through from the notching 40 on the internal side 9 to the covering strip 4, the housing 22 of this device 1 can, quite simply, be clipped and no longer screwed onto the housing 18 of the locking fitting 14.

Also, referring to Figures 10 to 12, we distinguish such fixing means by clipping 48 defined by two end pieces 49, 50, provided with retaining means 51 in the form of pins or the like forming a step, extending on either side of an element forming spacers 52 thick 55 adjusted to the spacing between the housing 22 of the follower return device 1 and the housing 18 of the locking fitting 14.

Thus and at the time of assembly, we just equip the housing 22 of the device for returning the follower 1 to these fixing means by clip 48, by engaging, in openings 53 provided for this indeed, their end piece 49, knowing that the assembly is then clipped onto the housing 18 coming to coincide the tip 50 of these means of fixing by clipping 48 with an opening 54 in said housing 18.

In view of the above explanations, we understand, of course, that insofar as the spacer element 52 of these means of fixing by clipping 48 is dependent on a variable distance, it the carpenter will be offered the model whose thickness 55 of this spacer element 52 is adaptable to the profile of its joinery.

Thus, the invention advantageously responds to the problem posed and therefore represents a clear progress in this field of returning devices.

Claims (11)

1. Drive gear for a lock follower comprising a casing (22) in which are rotationally mounted around parallel axes (23, 24), on the one hand, a primary pinion-tumbler (25) comprising primary coupling means designed so as to co-operate, through a primary actuating square (26), with a tumbler of a control mechanism (17) accommodated in a casing (18) of a locking fitting (14), such as an espagnolette, arranged in an encasing groove (19) provided for in the fillister (20) of a door- or window-frame (3) provided with a capping strip (4) and, on the other hand, a secondary pinion-tumbler (27) comprising secondary coupling means designed so as to accommodate a secondary actuating square (15) of a control handle (13) inserted against the inner side of the door- or window-frame (3), this primary pinion-tumbler (25) and the secondary pinion-tumbler (27) engaging, through at least one reversing pinion (28, 29), also rotationally mounted in said casing (22), designed capable of being positioned in the thickness of the door- or window-frame (3), between the casing (18) of the fitting (14) and the control handle (13), the primary pinion-tumbler (25) and the secondary pinion-tumbler (27) being arranged on the same engaging plane (PL) inside the casing (22) of this device, characterised in that said primary and/or secondary coupling means are located outside said engaging plan (PL).
2. Drive gear for a lock follower according to claim 1, characterised in that the secondary pinion-tumbler (27) and/or the primary pinion-tumbler (25) are subdivided, in their axial direction, into two cylindrical portions (30, 31) a first one of which (30) bears a toothing capable of engaging with the reversing pinion (28, 29), the second portion (31) including, at its centre, a primary and/or secondary opening (32) for receiving the primary and/or secondary actuating square (15) of the handle (13) and/or of said control mechanism (17) and substantially forming said primary and/or secondary coupling means.
3. Drive gear for a lock follower according to claim 2, characterised in that the portion (31) of the secondary pinion-tumbler (27) and/or of the primary pinion-tumbler (25) provided with the opening (32) for receiving the actuating square (15 ; 26) of the handle (13) and/or of said control mechanism (17) protrudes at least partially out of the casing (22), on the side (36 ; 37) in front of said handle (13) and/or of said control mechanism (17).
4. Drive gear for a lock follower according to any of the preceding claims, characterised in that the primary pinion-tumbler (25) and/or the secondary pinion-tumbler (27) is axially extended by a primary and/or secondary actuating square (26) made out of the same material as this pinion (25 ; 27), protruding on the side (37 ; 36) of the casing (22) in front of the locking fitting (14) and/or the handle (13) and substantially forming said primary and/or secondary coupling means.
5. Drive gear for a lock follower according to any of the preceding claims, characterised in that said primary and/or secondary coupling means are defined by an intermediate part (50) including, on the one hand, at one end (51), male or female encasing means (52) designed capable of co-operating with female or male encasing means of a conjugate shape (53) the primary pinion-tumbler (25) and/or the secondary pinion-tumbler (27) include and, on the other hand, an extension (54 ; 54A), either in the form of a primary and/or secondary actuating square protruding out of the side (37 ; 36) of the casing (22) in front of the locking fitting (14) and/or of the handle (13), or including, at its centre, an opening for receiving the primary and/or secondary actuating square (15 ; 26) of this handle (13) and/or of this control mechanism (17).
6. Drive gear for a lock follower according to one of the claims 1 to 5, characterised in that its casing (22) is defined of such a thickness (34) and width (35) as to be capable of being positioned in the thickness (39) of a capping strip (4) of an overlapping door- or window-frame (3) of a door, window or the like, in a cut-out (40) provided for on the side (9) towards the interior of the dwelling of this capping strip (4).
7. Drive gear for a lock follower according to any of the preceding claims, characterised in that the secondary actuating square (15) or the portion protruding out of the side (36) of the casing (22) or on the extension (54A) of the intermediate part (50) associated with the secondary pinion-tumbler (27) extends into an opening provided for in a rabbet (10) inserted against the inner side (9) of the capping strip (4).
8. Drive gear for a lock follower according to any of the preceding claims, characterised in that onto the primary actuating square (26) or the portion protruding out of the side (37) of the casing (22) or on the extension (54) of the intermediate part (50) associated with the primary pinion-tumbler (25) is inserted a sleeve (42) forming a spacer between the casing (22) of the device (1) and the casing (18) containing the control mechanism (17) of the locking fitting (14).
9. Drive gear for a lock follower according to claim 8, characterised in that the sleeve (42) forming a spacer includes, at the level of the opening (43) for the passing through of the primary actuating square (26) or the protruding portion associated with the primary pinion-tumbler (25) or on the extension (54) of the intermediate part (50), shearable indexing means (45) for temporarily immobilising in rotation said primary pinion-tumbler (25).
10. Drive gear for a lock follower according to any of the preceding claims, characterised in that its casing (22) is designed capable of receiving snap-on fixing means (48) in order to ensure its connection to the casing (18) of the locking fitting (14), such snap-on fixing means (48) being of an interchangeable nature, so as to be adjusted to the distance separating said casing (18) and (22).
11. Drive gear for a lock follower according to claim 10, characterised in that the snap-on fixing means (48) are defined by two ferrules (49, 50), provided with retaining means (51), in the form of catches or the like and extending on both sides of an element forming a spacer (52) with a thickness (55) adjusted to the separation existing between the casing (22) of the drive gear for a lock follower (1) and the casing (18) of the locking fitting (14), the ferrule (49) being capable of being snapped into an opening (53) provided for this purpose in said casing (22), while the ferrule (50) is capable of coinciding with an opening (54) in the casing (18).

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