EP1471196B1 - Lock bolt for door wing or window wing - Google Patents

Abstract

The lock has a rabbet and a T shaped groove for receiving fitting units. A headrest (13) includes a sliding rod (14) assembled at its rear part. The rod includes an end to co-operate with a strike plate. The headrest has a bonding unit (23) to co-operate with the back tracings of the bonding unit, and to guide and maintain sliding of the rod at the rear part of the headrest.

Description

The invention relates to an immobilization lock for a door leaf or window comprising, in rabbet, a T-shaped groove for receiving fitting elements, said lock comprising a headrest at the rear of which is slidably mounted a rod which , in a locking position, has a defined end adapted to cooperate with a striker.

The present invention relates to the field of carpentry fittings and relates, in particular, to an immobilizer lock for any door leaf or window. This invention will find a particular application, but not exclusively, to so-called semi-fixed leaves, doors or windows comprising at least two leaves opening the French and without a central mullion.

In this connection, it will be recalled that when closing such a door or window, one of its leaves, said semi-fixed, is provided able to fall back first on the frame, to the extent that the Another leaf, called service, comprises its front amount coming to recover the corresponding front amount of this leaf semi-fixed.

Thus, the opening of such a door or window occurs under the control of a locking fitting, type espagnolette, espagnolette-lock or other, equipping, generally, the front amount of the service leaf. Also, to avoid, when the unlocking command of the fitting and the opening of the service leaf, that the semi-fixed leaf systematically opens in its turn, it is associated with a lock immobilization.

It will be specified, once again, that this convenience can be desired at a leaf of any door or window.

It is particularly known a lock having a rod mounted slidably at the rear of a headrest and which, under the impulse of a manual control, may have its free end projecting relative to the end, as the case may be. upper or lower of the front post corresponding to such a leaf to be housed in a keeper disposed correspondingly to the cross, respectively, upper or lower of the frame.

An inverse command allows, on the contrary, cause almost total erasure of the rod at the rear of said headrest and, finally, its release of the corresponding strike to ensure the opening of the leaf.

In fact, such an immobilization lock is housed, usually in a recess groove that includes, in rebate, this leaf. Its fixing is provided by means of screws provided able to come to lodge in the thickness of the joinery.

This immobilization lock can take the form of a bracket so as to register in rabbet in the angle between a crossbar, upper or lower, and the front amount of the leaf.

In these conditions this lock comprises a first wing defining the headrest housing the rod and provided adapted to extend, usually, along and at the upper or lower end of the front post corresponding to the leaf. The other wing, extending perpendicular to the previous one, is positioned in cross rebate and contributes to a better fixing of the lock. Furthermore, this perpendicular wing comprises, substantially in the angle it forms with said headrest, a passage opening of the end of the rod which, in the locking position, is intended to cooperate with a strike arranged in correspondence on the frame on which is mounted pivoting the leaf. This fixing flange usually comprises at least one opening for the passage of a fixing screw intended, again, to be housed in the thickness of the joinery.

In this connection, insofar as it is customary for a leaf for a door or window to have a recess groove on the whole of its periphery, it is intended for the housing and / or the fastening of fitting elements. fixing aforementioned, also comes to be housed, usually in this groove that includes in rabbet the upper crossbar or, as the case, lower this leaf.

If such immobilization locks bring in itself satisfaction, the simple fixation not screw is problematic when it comes to force the opening of the leaf that equipped, for example during an attempted break-in. In this case, the forces are directly reflected on the bead wire, then on these fixing screws which finally offer only limited resistance to tearing. In fact, the stresses applied under these conditions on the bead wire have a tendency to bend, thus to bend it, so that the operation of the lock can be altered thereafter.

It has been found that many joineries, in particular doors or windows designed from metal or plastic profiles, have, in rabbet, T-shaped grooves having a bottom and side walls which are provided, substantially at their height. free end, of returns bordering their mouth. Also, it has been imagined to take advantage of these returns forming hooking edges to ensure a resistant connection of an immobilization lock at such a joinery, but, in addition, to relieve, through them, constraints that can be applied to the rod.

Thus, we know, for example by the document US 6183024 , a latch for swinging leaf, intended to take position in a notch practiced rabbet and substantially in the angle of such a leaf. This lock comprises a headrest under which extend two parallel walls conferring a section substantially U and housing, guiding a locking bolt in the form of a rod and adapted to cooperate with a striker. These two parallel walls of the headrest comprise hooking means in the form of tabs cut in said walls and provided to extend, forming redan, under the edges of the notch in the joinery.

The bolt, slidably mounted under the headrest, also has a U-shaped section and has parallel side walls adjacent to those of the headrest. In this way the bolt prevents the aforementioned tongues to be pushed towards the longitudinal median plane of the lock, displacement which would result in the recess of the latter relative to the leaf on which it is mounted.

He is still known, by the document DE-101 03 468 , a headrest and means for securing it in a groove in U which has a rabbet joinery. These means are in the form of a U-shaped rider having two parallel wings extending perpendicularly to a bottom which is secured to the rear face of the headrest. An expansion member is provided for externally pushing said parallel wings and act as a wedge to lock the jumper in the U-groove in which it was previously engaged.

If, for the time being, we are not only trying to standardize the components of a carpentry hardware and to facilitate the design of these parts, we also try to make easier the operations necessary for their assembly and assembly. .

In this context, we wish more specifically to limit the number of operations, and therefore the time that should be allocated to them.

Nevertheless, screw fixing has been considered in order to meet, in the context of the application of this invention, very particular constraints in this field.

In fact, by choosing, in addition, a square shape, for this lock has been imagined to take advantage of the hooking edges of the T-slots extending in two perpendicular directions.

Thus, the invention relates to an immobilization lock for a door leaf or window comprising, in rabbet, a T-shaped groove for receiving fitting elements, said lock comprising a headrest at the rear of which is slidably mounted a rod which, in a locking position, has a defined end adapted to cooperate with a striker, said headrest having fastening means defined capable, on the one hand, to cooperate with snap returns bordering the mouth of a T-slot and, secondly, designed to guide and maintain sliding said rod at the rear of the headrest, characterized in that the immobilization lock has a square shape so as to take a position on the angle between a cross member and a jamb of a leaf and comprises, firstly, a first wing, defining the headrest to the rear of which is slidably mounted the rod and, secondly, not perpendicular wing of fixation.

Advantageously, each of these wings comprises defined hooking means capable of cooperating with the return snaps bordering the mouth of a T-shaped groove, at least those of one of these wings being capable of cooperating with these returns. gripping engagement and clipping in a T-groove in a direction substantially perpendicular thereto.

Preferably, the attachment means adapted to cooperate with clipping returns are those associated with the wing defining the headrest and designed to guide and keep sliding said rod at the rear of the latter.

The advantages which derive from the immobilization lock according to the invention consist in that it offers a better holding and case of attempted tearing, in that the rod and better maintained to withstand the stresses applied to it. in these conditions and the attachment to the carpentry is greatly improved.

In addition, the mounting of this lock on a carpentry is made easier. Indeed, it is sufficient to perform a simple clipping operation or to insert by sliding one or the other of the wings in the corresponding T-groove of the leaf concerned, while the other wing comes, it, clip in such a T-slot extending perpendicular to the previous one.

Being, in addition, consisting of a minimum of parts, or only two, this lock is also very easy to assemble.

• la figure 1 est une représentation schématisée d'une fenêtre à deux vantaux s'ouvrant à la française ;
• la figure 2 est une représentation schématisée en perspective d'un verrou, selon l'invention, en cours de montage sur un vantail ;
• la figure 3 est une vue similaire à la figure 2, le verrou étant, ici, représenté monté sur ledit vantail ;
• la figure 4 est une vue de détail du verrou illustrant les moyens d'accrochage contribuant, selon l'invention, au guidage et au maintien coulissant de la tringle à l'arrière de la têtière;
• la figure 5 représente une vue arrière de l'aile abritant la tringle rendant ainsi visibles les moyens d'indexation des positions verrouillées et déverrouillées de cette tringle.

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

• the figure 1 is a schematic representation of a window with two leaves opening to the French;
• the figure 2 is a schematic perspective representation of a latch, according to the invention, being mounted on a leaf;
• the figure 3 is a view similar to the figure 2 , the latch being shown here mounted on said leaf;
• the figure 4 is a detail view of the latch illustrating the attachment means contributing, according to the invention, to guiding and sliding of the rod at the back of the headrest;
• the figure 5 represents a rear view of the wing housing the rod thus making visible the indexing means locked and unlocked positions of this rod.

In the remainder of the description reference is made to the figures of the accompanying drawings.

As shown in these figures, the present invention relates to an immobilization lock 1 for door leaf, window or the like.

In the remainder of the description and in the drawings, there is particularly mentioned a lock 1 applied to a semi-fixed leaf 2 corresponding to a door, window or the like 3 comprising at least two leaves 2, 4 without a central mullion .

However, as already explained above, the present invention is not limited to this application.

Thus, in such a configuration of door or window with two leaves 2, 4 without central mullion, coming to close on the frame 5, the front amount 6 of the leaf 4, called service, comes to recovery of the corresponding front post 7 of this semi-fixed leaf 2 previously folded on this frame 5.

The locking of this window 3 is obtained, usually, through a locking fitting 8, such as a cremone, espagnolette-lock or the like, equipping the front post 6 of the service leaf 4.

Precisely, to avoid, during the unlocking command and opening of the service leaf 4, the semi-fixed leaf 2 opens, in turn, automatically, it is called the immobilizer lock 1.

The lock adopts a square shape to equip, in rabbet, this semi-fixed leaf 2, in the upper angle 9 or lower 10 that defines the upper crossbar 11 or lower 12 with the front post 7.

Thus, this latch 1 comprises a first flange 13 defining a headrest to the rear of which is slidably mounted a rod 14, one end 15 is provided adapted to be protruding from the corresponding end 16 of said headrest 13 to cooperate , in the locking position, with a keeper 17 arranged in correspondence on the fixed frame 5. Preferably, the opposite end 18 of this rod 14 is folded to define an operating member 19 accessible through an opening 20 in the wing 13 forming a headrest.

In the end, this rod 14 is able to occupy at least two positions, including an unlocked in which it comes to completely disappear at the rear of the headrest 13 and a locking position where, as indicated above, its end 15, which is then protruding, engages in said striker 17.

This immobilization lock, because of its square shape, further comprises a fastening wing 21 extending perpendicular to the end 16 of the wing 13, knowing that substantially in the angle formed with the latter, this wing 21 comprises at least one opening 22 for the passage of said rod 14.

Each of the flanges 13, 21 of the bolt 1 comprises hooking means 23, 24, defined capable of cooperating with snapbacks 25, 26 which border the mouth of the T-shaped groove 27 which usually comprises a rabbet the uprights and sleepers, in the form of plastic or metal profiles, of a door leaf or window.

At least the attachment means 23, 24 of one of these flanges 13, 21 are moreover capable of cooperating with these engagement returns 25, 26 by engagement and clipping in the corresponding T-slot 27, in a direction D substantially perpendicular to the latter.

According to the illustrated embodiment, the attachment means 24 corresponding to the fastening flange 21 are defined by a section of the latter adapted to the section of a T-slot 27 requiring its engagement therein in the direction axial. Thus, the wing 21 comprises, at its rear face 28, retaining flanges 29, 30 capable of cooperating with the return hooks 25, 26, coming to lie under the latter, during the engagement. of said wing 21 axially in a T-slot 27.

In another embodiment, not shown, these attachment means 24 may be designed to allow clipping mounting of the wing 21 in such a T-shaped groove 27, either by engagement, not axial, but perpendicularly in the latter. .

More particularly, the side 31, opposite to the flange 21, of these retaining flanges 29, 30 can define a planned crossing ramp capable of causing them to elastically erase in front of the return snaps 25, 26 of a groove. 27. Conversely, after passing through these hooking returns 25, 26, said retaining flanges 29, 30 are resiliently biased under these latter forming redan.

Note that the elasticity may arise from the material component of the latch 1. More particularly, it may be designed of plastic through an injection molding process.

While the attachment means 23 corresponding to the wing 13, therefore the headrest housing the rod 14, they are designed, in the preferred embodiment shown, to cooperate with the return hooks 25, 26 by engagement and clipping perpendicularly in such a T-groove 27.

They consist of retaining tongues 32, 33 extending at the rear of the headrest 13 and which, when inserted into the T-shaped groove 27, elastically fade in the passage of the returns 25, 26 for, at the end of the engagement, to extend under these last ones forming redan.

Preferably, these tabs 32, 33, acting in opposition, are defined at the side walls 34, 35 extending perpendicularly laterally and at the rear of the wing 13. It will be noted that this headrest 13 with its side walls rear 34, 35, optionally connected by a bottom wall 36, advantageously define a housing for slidably receiving the rod 14.

It should be observed that if the attachment means 24 corresponding to the wing 21 are designed to cooperate by clipping with a T-slot, those 23 can be defined by a section adapted from the wing 13 to the section d a T-groove 27 requiring its engagement in it in the axial direction. In this case, for example, the side walls 34, 35 extending perpendicularly, laterally and at the rear of the flange 13 may be provided with rims or flange sections capable, by axial engagement in a T-shaped groove 27, to extend under the fastening flanges 25, 26 of the latter.

Note that the retaining tongues 32, 33, at the rear face of the wing 21, may constitute an extension of these side walls 34, 35 corresponding to the wing 13, thus conferring on the whole, perfect rigidity.

Moreover, insofar as the T-shaped groove of a crosspiece 11, 12 forms, at the upper or lower end of the front pillar 7, the extension of the recessed one of the latter, in the angle 9, 10 between this upper cross-member 11 or, as the case may be, lower 12 and said front post 7, the returns 25, 26 comprise an interruption to allow the axial engagement in the corresponding groove 27, for example of the wing 21 of the corresponding lock 1 in the illustrated embodiment.

According to the invention, these attachment means 23 which comprises the headrest 13 are defined capable of ensuring the guiding and the sliding maintenance of the rod 14 at the rear of the headrest 13.

According to the illustrated embodiment, the retaining tongues 32, 33 extend on either side of the lateral walls 34, 35 to be positioned, preferably in an elastic manner, behind the return hooks 25, 26, while they comprise, again, retaining flanges 37, 38 on the inner side to said side walls 34, 35. Thus, at the time of assembly, again the preferentially elastic nature of the retaining tabs 32, 33 allows them to be erased. at the passage of the rod 14 which then comes to interpose between these retaining flanges 37, 38 and the rear face 39 of the wing 13.

As it is visible in the figure 5 representing a rear view of the headrest 13 housing the rod 14, the latch 1 may be equipped with indexing means 53 in particularly locked and unlocked positions of the rod 14. These indexing means 53 may, in fact, adopt different forms of implementation and if they intervene, in the design as visible in this figure 5 between at least one indexing lug 54 fitted to the rear face 39 of the wing 13 and the notches 55 to 55B at the level of at least one of the longitudinal edges 56 of an axial oblong cutout 57 formed in the rod 14, other designs are possible. In particular, these indexing means 53 could still intervene between said rod 14 and one and / or the other side wall 34, 35 forming a housing.

Any particular and as visible in the figure 5 , the oblong slot 57 further allows the rod 14 to come to fit on a guide pad 58 equipping the rear face 39 of the wing 13 forming a headrest. Note as visible, this guide stud 58 may be traversed by an opening 59 for the passage of a complementary fixing screw.

As can be seen from the foregoing description, the present invention advantageously overcomes the problem posed.

Claims (7)

1. Lock bolt for the leaf (2) of a door or window (3), including in the fillister a T-shaped groove (27) for receiving fitting elements, said bolt (1) including a face-plate (13) behind which is slideably mounted a rod (14) that includes, in a locked position, an end (15) designed capable of cooperating with a keeper (17), said face-plate (13) including coupling means (23), on the one hand, designed capable of cooperating with coupling bends (25, 26) edging the mouth of a T-shaped groove (27) and, on the other hand, designed capable of guiding and maintaining said rod (14) slideable behind the face-plate (13), wherein it has an L-shape so as to be capable of being positioned on the angle (9, 10) between a rail (11, 12) and a stile (7) of a leaf (2), and includes, on the one hand, a first wing (13) defining the face-plate behind which the rod (14) is slideably mounted and, on the other hand, a perpendicular securing wing (21).
2. Lock bolt according to claim 1, wherein each of the wings (13, 21) includes coupling means (23, 24) designed capable of cooperating with the coupling bends (25, 26) edging the mouth of a T-shaped groove (27), at least one of these wings (13, 21) being likely to cooperate with these coupling bends (25, 26) through insertion and snapping into a T-shaped groove (27) in a direction substantially perpendicular to the latter.
3. Lock bolt according to claims 1 and 2, wherein the coupling means (23) capable of cooperating with coupling bends (25, 26) through snapping in are those associated with the wing (13) defining the face-plate designed capable of guiding and maintaining said rod (14) behind the latter.
4. Lock bolt according to any of the preceding claims, wherein the coupling means (23) associated with the wing (13) defining the face-plate are formed of retaining tongues (32, 33) extending behind the latter and that, during the insertion into a T-shaped groove (27), are capable of elastically withdrawing at the passing by of the coupling bends (25, 26), in order to extend, at the end of the insertion, under the latter while forming a step.
5. Lock bolt according to claim 4, wherein the retaining tongues (32, 33) are defined at the level of the sidewalls (34, 35) extending perpendicularly to, laterally and behind the wing (13).
6. Lock bolt according to claim 1 and 5, wherein the retaining tongues (32, 33) extend on both sides of the sidewalls (34, 35) so as to be capable of being elastically positioned behind coupling bends (25, 26) and of defining, on the inner side of said sidewalls (34, 35), retaining rims (37, 38) designed capable of guiding and maintaining the rod (14) slideable behind the face-plate (13).
7. Lock bolt according to any of the preceding claims, wherein it includes means for indexing (53) at least locked and unlocked positions of the rod (14).

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