EP0846827B1 - Safety device against wrong operation of an espagnolette for a wing - Google Patents

Abstract

The safety device comprises a spring-loaded locking pin (13) inside a cover (5) on a fixed or opening frame (2), which engages when released with a hole in the door or window fastening mechanism (8), e.g. in the form of a sliding bolt. When the moving panel of the door or window is closed the locking pin is withdrawn from the fastening mechanism by a control member (22) which fits under the head of the pin, allowing the fastening mechanism to be operated.

Description

The invention relates to a security device, of the type anti-maneuver, capable of completely preventing or partially the operations of a locking fitting, such as a cremone bolt or a lock bolt, after opening of a door, window or similar leaf comprising, of a hand, a support in the form of a box capable of being attached applied on a headrest at the back of which moves an operating rod corresponding to said fitting locking and, on the other hand, a through locking finger said headrest in order to cooperate, under the impetus of means elastic return with said operating rod, on this locking finger able to act as a connecting lug corresponding to a control member to bring it into position release under the impulse of another leaf or frame sleeping from the door or window when closing it.

The present invention will find its application in the field of the building hardware. In addition, it concerns, more particularly the tilt-and-turn windows.

Many locking fittings for doors, windows or analogous, allow different modes of opening the leaves composing the latter. So, as part tilt-and-turn windows, a first order on the locking fitting, in the form of a lever or lever-bolt, allows the opening of said door or window by pivoting of its or one of its leaves around an axis of vertical rotation often referred to as French opening. Through against, by continuing the movement initially communicated to the cremone bolt or cremone bolt, this leaf opens by knocking down, i.e. by pivoting around a horizontal axis substantially materialized by the lower cross member of the frame sleeping. We understand, of course, that these different modes the hinge fittings on which is able to act on said locking fitting in order to immobilize the leaf or, on the contrary, to release the leaf in either opening mode.

Furthermore, to avoid opening, which is called in flag, leaf it is absolutely necessary to prevent the operation of the locking fitting when this leaf is in any of its open positions. Indeed, this can cause deterioration of the control fittings and leaf joint. In addition, it causes a uncomfortable leaf position, requiring manipulation which is not less so, to find the initial position of correct closing of the leaf frame in the frame.

For this we imagined the security devices, again called anti-maneuvering, which in many cases are directly housed in the housing containing the mechanism control of the locking fitting, of the cremone bolt type or espagnolette lock. In fact, such a security device comes, so, seriously, complicate, this mechanism and reset, frequently involved, many parts of the hardware locking.

Furthermore, there are known safety devices capable of to be fitted as a wall lamp on a headrest provided in leaf rebate and housing a rod corresponding to a cremone bolt or bolt lock. Such safety device has a support, which is precisely fixed on said headrest, while a finger blockage passes through an opening made in the latter in to cooperate, under the impulse of means of recall elastic, with said operating rod and, therefore, in the purpose of immobilizing it when the leaf is in one any of its open positions. In this regard, the security device further comprises a control equipped with an operating tab on which is able to act, as the case may be, on the sleeping frame or another leaf of said door, window or the like, when closing it. Thus, this control member, through a tab of liaison, has the function of bringing, under these conditions, the locking finger in its inactive position, i.e. released from the operating rod.

Consequently, it is only by completely closing the leaf equipped with the safety device that the rod maneuver is released again and therefore the locking fitting of the bolt type or lever-bolt type, can be operated.

The disadvantage of such a safety device lies in its complexity.

More specifically, the control member is in the form a blade folded so as to define, on the one hand, the tab of maneuver on which comes to act, precisely, the framework sleeping or any other obstacle it comes across at the time to close the leaf and, on the other hand, the connecting tab. In fact, it is intended to rotate, around a axis parallel to the headrest, a shoe able to push back a blade mounted tilting in the housing that defines the support. At its opposite end with respect to its tilting axis, this blade is engaged on the locking finger capable of move perpendicular to the plane of said headrest. The elastic return means, in the form of a spring, support on this blocking finger to remind it, systematically, in its active position so that, as soon as the leaf, the control member loosening its action on the shoe and, therefore, the blade, this locking finger can come to cooperate with the operating rod in order to immobilize it in translation.

• un patin monté pivotant sur le support ;
• une lame qui, elle, est montée basculante à l'aide d'un insert approprié dans le boítier définissant ce support ;
• et, bien sûr, le doigt de blocage et ses moyens de rappel élastiques.

Thus, apart from the folded blade defining the control member, this safety device necessarily includes:

• a shoe pivotally mounted on the support;
• a blade which, for its part, is pivotally mounted using an appropriate insert in the housing defining this support;
• and, of course, the locking finger and its elastic return means.

It is not only advisable to manufacture these numerous parts but still it is necessary to assemble them. The set is also relatively bulky knowing in this regard that he must take rebate position of a door, window or similar.

Such a safety device has also been designed to reversibly. First of all, the skate can pivot in a direction as in the other around its axis of rotation. Such pivoting causes, in all cases, the tilting of the blade acting on the locking finger. In addition, the organ of control is pivotally mounted on the pad it is intended to actuate. Under these conditions, the operating leg of this control unit can be located on either side of the safety device, making it possible to use it on a leaf opening to the right or to the left.

However, the rotation of the control device must not be able to do it freely. Also, it is necessary to crimp the connecting lug on the skate with a certain force of crimping allowing, precisely, this rotation only when it is desired by the carpenter ensuring the shoeing of a door, window or the like.

Furthermore, it should be noted that the complexity of such devices makes their reliability questionable. Too much play due to multiple pieces, associated with variations in rebate and type of construction itself, cannot fully guarantee good operation of the device.

We also know from document DE-A-3.307.209 a safety device of the anti-tampering type comprising a locking finger guided axially while being immobilized rotating at the rear of a mounting plate through from which this device is attached to the headrest of a lever or espagnolette lock. While in its protruding part at the front of this fixing plate, this locking finger comprises, as that control unit, a particular configuration head. Of on either side of its transverse median plane, the plate of attachment has an opening for the passage of a fixing so that it is necessary to spare also in the headrest two openings that can be crossed by these screws fixing, while at the level of the operating rod must correspond oblong openings allowing, again, the passage of these fixing screws while allowing the rod to maneuver to execute its movements between a position of lock and unlock position.

In the context of another embodiment described in the document front, the safety device has two locking fingers crossing the headrest in order to cooperate, under the impetus of means elastic reminders, with the operating rod.

On one side of the box corresponding to this safety device are provided two slots to allow connecting legs of a control member to cooperate with these two locking fingers. of the pins come to hold in position in the housing said control unit.

The present invention aims to respond to these problems, on the one hand through the design of a safety device simple, with a minimum of parts and also reduced dimensions as possible and, on the other hand, including the control member, intended for act directly on the locking finger, can be reported by simple interlocking on the safety device by the carpenter at moment of fitting a door, window or similar leaf. In done, this avoids the presence of this control member on this safety device during transport and storage, not to mention that it is easy for the carpenter to adapt the position of this control member as a function of the leaf opening direction intended to be fitted with such a safety device.

To this end, the invention relates to a security device, of the type anti-maneuver, capable of totally or partially preventing the operations of a locking fitting, such as a cremone bolt or cremone bolt, after opening a door leaf, window or the like, comprising, on the one hand, a support in the form of a housing capable of being attached to a faceplate at the rear of which an operating rod moves corresponding to said locking fitting and, on the other hand, a locking finger passing through said headrest in order to cooperate under the impulse of elastic return means, with said rod maneuver, on this locking finger being able to act a lug of bond corresponding to a control member to bring it into position release under the impulse of another leaf or frame door, window or similar frame, when closing this one, characterized by the fact that the case defined by the support and serving as housing for the locking finger comprises, at level of each of its opposite sides parallel to the plane of the leaf that it equips, an opening used for the passage of said connecting lug which is able to fit into this housing and on said blocking finger in order to actuate it under the impulse of a maneuvering leg extending said connecting lug, the latter being further provided with means anchoring in said housing.

Thus, we observe, first of all, that the control member acts, directly, on the locking finger. In addition, this organ of control can be introduced, fixedly, in the case that define, in combination, the support and its cover, this at the same time as placing the safety device on a leaf which we know, moreover, the direction of opening. AT note, in this regard, that being obliged to ensure the assembly of this control member, the carpenter is necessarily made aware of its good positioning. So in the case where the safety device was pre-equipped with this control member, this carpenter could inadvertently forget to verify that said control member occupies a position adapted to the opening direction of the leaf. In these conditions, the error was only detected during the first manipulation of the door, window or the like.

Attention is drawn to the fact that such a device safety can be added by pressing on the headrest of the locking fitting through a fixing member coming across, on the one hand, this headrest and, on the other hand, the operating rod arranged at the rear. To authorize the free movement of the latter, it includes obligatorily, an oblong opening to the right of this body of fixation. However, due, on the one hand, to the amplitude of displacement of this operating rod to pass from its position corresponding to the locking of the door, window or similar to the open position by knocking down the leaf, this through the opening to the French and, on the other part, of the generally reduced dimension of this device of security from which results the proximity of the fixing member by compared to the locking finger, it does not come to lie, generally only in one of the open positions of the leaf in a hole in the rod preventing movement of the latter in any one of the directions while that in the other open position, this blocking member plunges into the oblong light of the rod serving, in reality, the passage of the fixing member. The result that in this second position this operating rod does not can be immobilized by means of this finger blocking in only one of its directions of movement.

Concretely, if such a safety device allows to prevent the passage from the French open position from the locking fitting to the open position in flap and vice-versa, as long as the leaf is not closed on the sleeping frame, it is often impossible, prevent this fitting from moving from the open position French style in the locked position, even though this leaf is ajar.

Also, the present invention further relates to a device capable of completely preventing the maneuvers of a locking fitting, such as a bolt or bolt, when the leaf that it equips is in one any of its open positions.

To this end, the invention also relates to a device for security whose support is applied on the headrest by means of at least one fixing member, such as a screw or the like, passing through said headrest, as well as a oblong light in the rod to come cooperate with the window joinery, characterized by the fact that it has a symmetrical configuration with respect to the plane transverse median and has a second locking finger crossing said headrest in order to cooperate, under the impulse elastic return means, with the operating rod, on this locking finger acting a second connecting tab associated with a control member, the distance between the fingers of blocking being determined so that either at least one of them cooperates with an adjusted section opening formed in the operating rod when the fitting of lock is brought into any of the positions leaf opening, this in order to ensure immobility bidirectional of the rod, either that in one of the positions one of the locking fingers cooperates with a section opening adjusted so as to immobilize the operating rod in each of its directions of displacement and that in the other open position both locking fingers engage at the ends oblong light present in the rod serving for the passage to the fixing member connecting the device leaf safety, to immobilize in translation said operating rod.

La figure 1 est une représentation schématisée et en coupe du dispositif de sécurité équipant l'un des deux vantaux d'une fenêtre fermée, tout particulièrement celui comportant une ferrure de verrouillage du type crémone ou crémone-serrure ;

La figure 2 est une vue schématisée et en coupe selon II-II de la figure 1 ;

La figure 3 est une vue schématisée et en coupe du dispositif de sécurité tel que représenté dans la figure 1, l'action sur l'organe de commande étant, ici, relâchée de sorte que le doigt de blocage est amené dans sa position de blocage ;

La figure 4 est une vue de détail A de la figure 3 ;

La figure 5 est une vue de dessous de la patte de liaison correspondant à l'organe de commande ;

La figure 6 est une vue schématisée et en coupe de cet organe de commande ;

La figure 7 est une vue schématisée et en coupe longitudinale d'un dispositif de sécurité présentant une configuration symétrique par rapport à son plan médian transversal et comportant, de ce fait, deux doigts de blocage ;

La figure 8 illustre la position de ces deux doigts de blocage par rapport à la tringle de manoeuvre lorsque la ferrure de verrouillage du type crémone ou crémone-serrure est en position de verrouillage ;

La figure 9 est une représentation similaire à la figure 8 montrant la position des deux doigts de blocage engagés dans une lumière oblongue ménagée dans la tringle de manoeuvre, ceci lorsque la ferrure de verrouillage est amenée dans sa première position d'ouverture du vantail, correspondant, usuellement, à l'ouverture à la française de ce dernier ;

La figure 10 est une représentation similaire aux figures 8 et 9 et illustrant la position des deux doigts de blocage par rapport à la tringle de manoeuvre lorsque la ferrure de verrouillage est amenée dans la position d'ouverture en abattant du vantail.

Other objects and advantages of the present invention will appear during the description which follows, relating to embodiments and the understanding of which will be facilitated by referring to the attached drawing.

Figure 1 is a schematic representation in section of the safety device fitted to one of the two leaves of a closed window, especially one comprising a locking fitting of the bolt type or bolt lock;

Figure 2 is a schematic sectional view along II-II of Figure 1;

Figure 3 is a schematic sectional view of the safety device as shown in Figure 1, the action on the control member being, here, released so that the locking finger is brought into its locking position ;

Figure 4 is a detail view A of Figure 3;

Figure 5 is a bottom view of the connecting tab corresponding to the control member;

Figure 6 is a schematic sectional view of this control member;

Figure 7 is a schematic view in longitudinal section of a safety device having a symmetrical configuration with respect to its transverse median plane and comprising, therefore, two locking fingers;

FIG. 8 illustrates the position of these two locking fingers with respect to the operating rod when the locking fitting of the lever bolt or lever bolt type is in the locked position;

FIG. 9 is a representation similar to FIG. 8 showing the position of the two locking fingers engaged in an oblong opening made in the operating rod, this when the locking fitting is brought into its first leaf opening position, corresponding , usually, at the opening to the French of the latter;

Figure 10 is a representation similar to Figures 8 and 9 and illustrating the position of the two locking fingers relative to the operating rod when the locking fitting is brought into the open position by knocking down the leaf.

As shown in Figures 1 to 3 of the accompanying drawings, the present invention relates to a device for safety 1, of the anti-tamper type, intended to equip a leaf 2 corresponding to a door, window or the like 3, by elsewhere, provided with a locking fitting such as a cremone bolt or cremone bolt 4. In fact, such a device for security 1 has the function, more particularly, of preventing the operation of this fitting of this lock 4 when said leaf is in any one of its positions opening. So, as an example this security device 1 makes it possible to avoid, in the case of a leaf of the swing-swing type, that, under the impulse of the locking fitting, we can control the opening by knocking down this leaf, even though it is already ajar by rotation around its so-called vertical pivot axis, for convenience of description, French opening. In addition, such security device 1 can simply prevent that this locking fitting is brought into its position locking, while the leaf is open. Indeed, if this happened, the locking devices, such that rollers, bits or others would strike, depending on the case, against the sleeping frame or other window sash and could not be located at the right of their waste corresponding. In the long run, such repetitive shocks can cause the malfunction of said fitting locking.

In fact, the security device 1 that is discussed here, has a support 5 capable of being attached to the wall a headrest 6 arranged in rebate 7 of the leaf 2 and at the rear of which a rod is moved operation 8 corresponding to said locking fitting of the type cremone bolt or cremone bolt 4. Thus, this support 5 comprises at least one orifice 9 serving for the passage to a member of fixing such as a screw, coming through the headrest 6, thus that the operating rod 8 to come and lodge in the carpentry. Note that at the right of orifice 9 said rod maneuver 8 has an oblong light allowing its free axial movement relative to the fixing member. Sure the dorsal face 10 of this support 5 is further distinguished, positioning pins 11, 12 intended to cooperate with fitted section openings at the level of the headrest 6 to perfectly position the latter on the safety device 1. It will be observed that if the device does not has only one fixing screw and two nipples positioning, in accordance with the embodiment shown, this is an advantage for the carpenter who sees its task facilitated during assembly, insofar as the fixing and positioning of this device is carried out without any particular thought. Indeed, as it will appear further in the description, the control member of this device is assembled in fine.

The present invention is in no way limited to such means fixing and positioning the safety device 1 on a headrest 6, knowing that we could, of course, consider other solutions, such as riveting or the like.

Furthermore, this safety device 1 includes a finger blocking 13 disposed in the housing 14 that defines, advantageously, the support 5, this locking finger 13 coming from cross the headrest 6, in order to cooperate, under the impulse of elastic return means 15, with the operating rod 8.

Thus, as visible in Figures 1 to 3, said finger blocking 13 extends, perpendicularly, to the plane of the headrest 6. In addition, in the housing 16 of the housing 14 defined by the support 5, this locking finger 13 comprises a head 17 of larger section on which act these means of elastic return 15 in the form of a helical spring coming, precisely, to intervene between this head 17 and the bottom 18 of the housing 16. Note that it is closed, on the face back 10 of support 5, by means of a cover 19, preferably crimped on the latter, and perforated with a opening 20 provided for the passage and guiding of the part active 21 of the locking finger 13.

Ultimately, on the latter is able to act a body of control 22 having the function of bringing it to the position of release when closing leaf 2, this under the impulse, as the case may be, of the other leaf corresponding to the door or window 3 or, quite simply, the frame of the latter.

Thus, as visible in the different figures 1 to 6, this control member 22 is in the form of a blade 23, preferably made of elastic material, which, as visible in Figures 1, 3, 5 and 6, is folded so as to define a connecting lug 24, more particularly intended for cooperate with the locking finger 13, and an operating lug 25. This defines, with respect to the connecting lug 24, a angle to which, as will be discussed further in the description is preferably of the acute type.

In fact, according to the invention, the housing 14 corresponding to the support 5 comprises, at each of its sides 26, 27 opposite and parallel to plane 28 of leaf 2, an opening 29, 29A, in particular in the form of a slot, serving, precisely, on passing the corresponding connecting tab 24 to the control member 22. These openings 29, 29A allow, thus, at this connecting tab 24, to come to fit on the locking finger 13.

More specifically, said connecting tab 24 comprises, at level of its edge before 30, a cut 31 of width 32 slightly less than the section of the head 17 of the finger blocking 13 so as to be able to engage on the latter, under this head 17.

It will be observed that to facilitate this nesting of the tab of link 24, it is necessary to preserve, between this head 17 of the locking pin 13 and the face 33 internal to the housing 16 of the cover 19, a space 34 corresponding, at least, to the thickness of said connecting tab 24. For this purpose, the active part 21 of said locking finger 13 present, substantially at its junction with the head 17, a shoulder 35 intended to bear, as the case may be, either directly on this internal face 33 of the cover 19 or else in the bottom of a milling 36 made, in the latter. This last configuration corresponds, more particularly to embodiment illustrated in the drawings.

Note, moreover, that, in accordance with the invention, this tab 24 of the control member 22 is provided with means anchor 37 in the housing 14.

According to an advantageous embodiment, these anchoring means 37 are in the form of a step forming element provided in the level of this connecting tab 24 and coming to oppose the removal of the latter from the housing 14 once introduced In this one. Thus, as shown in the drawings, these anchoring means 37 can take the form of at least one blade 38 defined, by cutting, at the rear edge 39 of this connecting tab 24, this blade 38 thus being folded under the plan 40 of the latter so that it forms a step intended to cooperate with a flange 41 formed in correspondence at the housing 14. More precisely, this rim 41 is located at the level of the openings 29, 29A in the form of slots present at the sides 26, 27 of said housing 14. In fact, these edges 41 are formed at the level of the internal face 33 and up to the edges 42, 43 corresponding to the cover 19 and coming to be in correspondence with the sides 26, 27 of said case 14. Advantageously, this cover 19 has a shape substantially square and symmetrical with respect to its center corresponding to the opening 20 for the passage of the finger of blocking 13. This avoids any positioning error at the time to crimp this cover 19 on the dorsal face 10 of the support 5.

To return to the control unit 22, as already specified higher, its operating leg 25 forms an acute angle a by compared to the connecting lug 24. This allows it to be attacked early enough by, as appropriate, the sleeping frame or another door leaf or window 3 at the time, specifically, to close the leaf 2 equipped with the security 1. Indeed, it must be guaranteed that under the impulse of this sleeping frame of this other leaf and a once the door or window 3 is closed, the locking pin 13 is brought into its unlocked position.

In addition, it is still advantageous for the blade making up this control member is of an elastic nature allowing said connecting lug 24 and the operating lug 25 to form a variable angle, somehow adjustable to variations dimensions that can be encountered in games between rebates of two leaves or between a leaf and the sleeping frame of a door, window or the like.

To better understand the rest of the description, we refer more particularly to Figures 7 to 10 of the drawings attached. In particular, it should be noted that a device 1, as described above is usually reported applied to the headrest 6 by means of a fixing member 50, such as a screw, rivet or the like, coming through, precisely, this headrest 6, as well as the operating rod 8 arranged at the rear to come and stay in the joinery proper. In fact, to the right of that fixing body 50 the operating rod 8 necessarily includes a light oblong 51 whose length is determined to allow the free movement of this operating rod 8 relative to this fixing member 50, in order to reach the different leaf opening positions, starting from the position lock.

It can be seen that, in this case, a device for safety 1 with only one locking finger 13, for example elsewhere very close to the fixing member 50, does not allow to ensure the immobility in translation of the rod operation 8 in each of the leaf opening positions 2. Indeed, in one of the positions taken by the rod maneuver, the locking member, instead of being at the right of an opening adjusted to its section, comes to plunge into the oblong light 51, not allowing it to fill its function only partially.

Also, according to the present invention, the security device 1, in this alternative embodiment, has a symmetrical configuration with respect to a median plane transverse 52. Under these conditions it has a second finger blocking device 13A disposed in a second housing 14A defined by the support 5. This blocking finger 13A again crosses the headrest 6 in order to cooperate, under the impulse of means of elastic return 15A, with the operating rod 8. In furthermore, on this blocking finger 13A is able to act a second connecting tab 24A of a control member 22A. In done, according to a preferred embodiment, it present in the form of a blade 23A, of elastic material, which, after folding, defines, on the one hand, two connecting tabs 24, 24A intended to cooperate, respectively, with a finger blocking 13, 13A and, on the other hand, a single tab of operation 25.

In fact, according to the invention, the center distance 53 between the fingers of blocking 13, 13A is thus determined so that either at at least one of these locking fingers 13, 13A cooperates with a opening 54 of section substantially adjusted to that of the active part 21, 21A of this locking finger 13, 13A, this when the locking fitting, in particular the cremone bolt or cremone bolt 4, is brought into any one of leaf 2 opening positions, to ensure, specifically, the bidirectional stillness of the rod operation 8.

According to another alternative embodiment more particularly illustrated in FIGS. 7 to 10, this center distance 53 between the locking fingers 13, 13A is defined so that in one of the opening positions of this leaf 2, one 13 of the blocking cooperates with an adjusted section opening 54 of so as to immobilize the operating rod 8 in each of its directions of movement, while in the other position opening, the two locking fingers 13, 13A come engage at the ends 55, 56 of the light oblong 51 present in the operating rod 8 and serving, normally, at the passage to the fixing member 50. The latter scenario is more particularly represented in the Figure 9 and corresponds to the position taken by the rod operation of the cremone bolt or bolt-lock, when the latter is brought into its position corresponding to the opening at the leaf 2. Previously, in figure 8 we sees very clearly the position of this rod operation relative to the locking fingers 13, 13A when the cremone bolt or cremone bolt 4 is in the locked position. On the other hand, in figure 10 illustrating the position taken by the operating rod when the leaf 2 opens in flap, we see the engagement of the locking finger 13 in opening 54.

Finally, with regard to the above description, we observe that the safety device 1, in accordance with the invention, not only responds to a problem of complexity and cost through a minimum number of pieces, but, in in addition, to a security problem since it is finally able to guarantee perfect immobility of the operating rod of a lever or a lever in any of the leaf opening positions. So, through this safety device, it is now impossible to operate the locking fitting to pass from the French-style open position in the open position by slaughtering or vice versa, but also with a view to bringing it back in its locked position, as long as the leaf is not closed on the sleeping frame.

Consequently, the present invention perfectly meets the problem.

Claims (10)

1. Safety device, of the type preventing an accidental operation, capable of totally or partially preventing the operations of a locking fitting (4), such as an espagnolette or espagnolette-lock, after opening a leaf (2) of a door, window or the like (3), including, on the one hand, a support (5) in the form of a casing (14) capable of being inserted against a face-plate (6) behind which moves an operating rod (8) corresponding to said locking fitting (4) and, on the other hand, a locking finger (13) passing through said face-plate (6) with a view to co-operating, under the action of springy restoring means (15), with the operating rod (8), on this locking finger (13) being capable of acting a connecting lug (24) corresponding to a control organ (22) in order to bring it into unlocking position under the action of another leaf or of said sash-frame of the door, window or the like, when closing the latter, characterised in that the casing (14), defined by the support (5) and serving as a recess of the locking finger (13), includes, at the level of each of its opposite sides (26, 27) parallel to the plane (28) of the leaf (2) on which it is provided, an opening (29, 29A) for the passing through of said connecting lug (24) that is capable of encasing onto said locking finger (13), in order to actuate it under the action of an operating lug (25) extending this connecting lug (24), the latter being provided, in addition, with means (37) for anchoring in said casing (14).
2. Safety device according to claim 1, characterised in that the locking finger (13) extends perpendicularly to the face-plate (6) and includes a head (17) with a larger cross-section on which act the springy restoring means (15), preferably in the form of a helical spring, said locking finger (13) including, in addition, an active portion (21) that passes through an opening (20) provided for at the level of a cover (19) that is preferably crimped onto the rear face (10) of the support (5).
3. Safety device according to any of claims 1 and 2, characterised in that the openings (29, 29A) provided for at the sides (26, 27) of the casing (14) corresponding to the support (5) are in the form of slots for the passing through of the connecting lug (24) corresponding to the control organ (22).
4. Safety device according to claim 2, characterised in that the connecting lug (24) of the control organ (22) includes, at the level of its front edge (30), a cut-out (31) of a width (32) slightly smaller than the cross-section of the head (17) of the locking finger (13), so as to be capable of inserting onto the latter, under this head (17).
5. Safety device according to any of claims 2 and 4, characterised in that the active portion (21) of the locking finger (13) has, substantially at the level of its junction with the head (17), a shoulder (35) aimed at resting, as the case may be, either directly against the inner face (33) of the cover (19) or also on the bottom of a countersinking (36) provided for in the latter, with a view to preserving, between the head (17) of said locking finger (13) and the inner face (33) of the cover (19), a space (34) corresponding at least to the thickness of the connecting lug (24) of the control organ (22).
6. Safety device according to any of claims 1 to 5, characterised in that the anchoring means (37) are in the form of an element forming an off-set provided for at the level of the connecting lug (24) and preventing the withdrawal of the latter from the casing (14) once it has been inserted into the latter.
7. Safety device according to any of claims 2 and 6, characterised in that the anchoring means (37) adopt the form of at least one blade (38) defined, through cutting out, at the rear edge (39) of the connecting lug (24), this blade (38) being folded back under the plane (40) of the latter, so as to form an off-set aimed at co-operating with a rim (41) provided for at the level of the casing (14), at the level of each of the openings (29, 29A) in the form of slots, said rims (41) being located at the level of the inner face (33) and at the level of the edges (42, 43) corresponding to the cover (19) and being located in correspondence with the sides (26, 27) of said casing (14).
8. Safety device according to any of claims 2 to 7, characterised in that the cover (19) has a substantially square shape symmetrical with respect to its centre corresponding to the opening (20) for the passing through of the locking finger (13).
9. Safety device according to any of the preceding claims, the support (5) of which is inserted against the face-plate (6) by means of a fastening organ (50), such as a screw or the like, passing through said face-plate (6) as well as an elongated slot (51) in the operating rod, (8) in order to co-operate with the carpentry of the leaf (2), characterised in that it has a symmetrical configuration with respect to a transversal median plane (52) and that it includes a second locking finger (13A) passing through said face-plate (6) with a view to co-operating, under the action of springy restoring means (15A), with the operating rod (8), on this locking finger (13A) acting a second connecting lug (24A) associated with a control organ (22A), the centre distance (53) between the locking fingers (13, 13A) being determined so that either at least one of them co-operates with an opening with an adjusted cross-section provided for in the operating rod (8) when the locking fitting (4) is brought into any of the opening positions of the leaf (2), this with a view to ensuring a bi-directional immobility of the operating rod (8) or, in one opening position, one (13) of the locking fingers co-operates with an opening (54) of an adjusted cross-section, so as to immobilise the operating rod in each of its directions of displacement and that, in the other opening position, both locking fingers (13, 13A) insert at the level of the ends (55, 56) of the elongated slot (51), present in the operating rod (8), for the passing through of the fastening organ (50) connecting the safety device (1) to the leaf (2), in order to immobilise in translation said operating rod (8).
10. Safety device according to claim 9, characterised in that the control organ (22A) is in the form of a blade (23A) made of a springy material that, after folding, defines, on the one hand, two connecting lugs (24, 24A) aimed at co-operating with a locking finger (13, 13A), respectively, and, on the other hand, an operating lug (25).

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